JP2001090149A - Human body washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the effectiveness of regulation of washing water discharge quantity even with a small feed quantity. SOLUTION: The water quantity of the washing water discharged from the discharge port of a washing nozzle 24 is regulated by a flow control selector valve 65 in the upstream of a wave generation unit 70. The flow control selector valve 65 regulates the flow rate to the wave generation unit 70 or the washing water discharge quantity by regulating the opening ratio of both of a conduit extending to the pulsation generation unit 70 and a second washing water leading conduit 56b. Namely, the flow control selector valve 65 regulates the washing water discharge quantity by jointly using the leading of the washing water to the second washing water leading conduit 56b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a human body cleaning apparatus for cleaning a human body by discharging cleaning water.

[0002]

2. Description of the Related Art A human body washing apparatus of this type, for example, a local washing apparatus for washing a local part of a human body, is rapidly spreading because a human body part can be cleaned with washing water. In these local cleaning devices, generally, a water flow control valve is incorporated in a water supply pipe from a water supply source to a water discharge hole, and the flow opening is adjusted by the flow control valve to adjust a water discharge amount. ing.

In recent years, the amount of water supplied to the local cleaning device itself has been reduced, and air has been mixed into the cleaning water to increase the apparent amount of cleaning water so that a small amount of cleaning water can enhance the local cleaning effect. Or something like that.

[0004]

Even if the water supply amount is reduced and the flow rate is adjusted only by the flow control valve in the water supply line, only the opening degree of the line is involved in the flow amount adjustment. It was difficult to finely adjust the flow rate.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to secure the effectiveness of adjusting the flush water discharge amount even with a small amount of water supply.

[0006]

Means for Solving the Problems and Their Functions and Effects In order to solve at least a part of the above-mentioned problems, a human body cleaning apparatus of the present invention is a human body cleaning apparatus that discharges cleaning water to a human body for cleaning. A water discharge means having a water discharge hole for discharging the wash water and a first water supply path leading to the water discharge means, for discharging the wash water from the water discharge hole, and a second water supply path branched from the first water supply path; Deriving means provided for deriving wash water other than the above, and using the wash water guide to the first water supply path and the wash water guide to the second water supply path in combination with the first water supply path after the branch point. An adjusting means for adjusting an amount of washing water and adjusting an amount of washing water spouted from the spout hole is provided.

In the human body washing apparatus of the present invention having the above-described structure, the supplied washing water is guided to the first and second water supply paths, and when the amount of the washing water discharged from the discharging hole is adjusted, the cleaning water is supplied to the discharging hole. The amount of flush water in the first water supply path is adjusted by using both the flush water conveyance in the first water supply path and the flush water conveyance in the second water supply path. Therefore, not only the adjustment in the first water supply path, but also the amount of the flush water discharged from the second water supply path at the time of conducting the flush water can be adjusted, and the effectiveness of the flow rate adjustment increases accordingly.

[0008] The human body cleaning apparatus of the present invention having the above-described configuration can also adopt the following modes. That is, the deriving unit may direct the destination of the washing water from the second water supply path to a part of the human body washing apparatus that receives the scattering of the sewage. With this configuration, the part of the human body cleaning device that receives the scattering of the waste can be washed with the washing water from the second water supply path.

Further, the deriving means may have a reforming means for reforming the washing water derived from the second water supply path into cleaning water having a sterilizing / sterilizing action against fungi. In this case, the part of the human body washing device that receives the scattering of the waste can be sterilized and sterilized and washed.

[0010] In a non-water discharge period in which the cleaning water is not discharged from the water discharging hole by the water discharging means, a means for supplying cleaning water to the second water supply path of the deriving means may be provided. In this way, even during the non-water discharge period, the above-mentioned human body cleaning device can be cleaned with the cleaning water, or sterilized and sterilized. In this case, the supply of the wash water to the second water supply path is performed at a timing before and after the discharge of the wash water at the time of cleaning the human body by the water discharging means, or at a predetermined time interval during the non-water discharge period after the completion of the human body wash. be able to.

Further, the adjusting means may include means for adjusting an opening ratio of the first and second water supply paths. In this case, the supplied washing water is first and second.
When the water is guided to the first water supply path, the amount of water supplied to the first and second water supply paths is determined by the opening degree ratio, and the amount of flush water discharged from the water discharge port through the first water supply path is adjusted.

[0012] Further, a hot water means for warming the washing water is provided in the first water supply path, and the second water supply path of the outlet means is branched from the first water supply path on the upstream side of the hot water means. Can be With this configuration, only the amount of flush water spouted from the spout through the first water supply path after the branch point passes through the hot water means, so that it is not necessary to warm the flush water beyond the flush water spout amount. Therefore, it is possible to reduce power consumption during hot watering, and to reduce the capacity and size of the heater necessary for hot water washing. For this reason, it is possible to reduce the size of the specific mechanism of the hot water means, and further downsize the device itself. Conversely, a hot water means for warming the wash water is provided, and the first water supply path and the second water supply path are branched on the downstream side of the hot water means, so that the amount of water passing through the water heating means is set to a flow rate. Regardless of the fact that the temperature can be kept substantially constant, the control of the water heating means becomes extremely simple.

[0013] Further, the water discharge means may cause the flow of the washing water to fluctuate in the first water supply path downstream of the branch point of the second water supply path, and the cleaning water is supplied in a state where the flow of the cleaning water fluctuates. It may have a variable water discharging means for discharging water from the water discharging hole. As described above, when the flow of the washing water fluctuates and the washing water is spouted from the spout hole, the following intermittent washing water spouting has the following advantages.

The state of the flow of the cleaning water guided to the water discharge hole is reflected in the cleaning water discharged from the water discharge hole. If the washing water is guided to the water discharge hole in a uniform flow (continuous flow), the wash water is continuously discharged from the water discharge hole, and a continuous flow of water is formed. However, when the flow varies and the cleaning water is led to the water discharge hole, an intermittent water discharge form reflecting the fluctuation is obtained. In this case, an intermittent flow of water is generated if the fluctuation is caused through the interruption of the path. Also, if the flow of the washing water is not changed so as not to interrupt the flow path so as to prevent a situation where the flow rate is zero, the washing water is guided to the water discharge hole in a pulsating flow state, and the water is discharged from the water discharge hole. The water discharge form is a water discharge form of a pulsating flow in which the amount of discharged water increases or decreases without the condition of zero flow rate reflected by the pulsating flow. When the water discharge form of this pulsating flow is instantaneously captured, as will be described in detail later, the wash water discharged when the water discharge amount is large becomes a water mass, and the water mass is discharged when the water discharge amount is small. It is as if they were connected by washing water. In the form of intermittent water discharge, the water masses are scattered without being connected. When water is discharged in the form of an intermittent flow or a pulsating flow in this manner, the force applied to the cleaning surface, that is, the instantaneous pressure peak value becomes larger than that of a continuous flow having the same flow rate. Therefore, the same cleaning intensity can be obtained with a smaller amount of water than in the continuous flow by using an intermittent flow or a pulsating flow. In addition, since only a small amount of water is required to obtain a desired cleaning strength, there are the following advantages. 2. Description of the Related Art In general, a human body washing apparatus for washing a local part of a human body, that is, a local washing apparatus, discharges warmed washing water in order to reduce discomfort when the washing water hits a local part. Therefore, if the amount of water is small as described above, the capacity of the heat source required to warm the washing water to a predetermined temperature can be reduced, and a high power saving effect can be obtained. In other words, since it is sufficient to use a small-sized and small-capacity heater, the size of the water heating mechanism can be reduced, and the size of the device itself can be reduced. And the second
If the water supply path is branched on the upstream side of the hot water means as described above, it is possible to further reduce the size of the heater and the size of the apparatus in combination with the downsizing of the heater.

The variable water discharge means which causes the fluctuation as described above is provided in the first water supply path, and an air mixing section formed so as to allow air to be mixed into the first water supply path from outside, An aeration unit connected to the aeration unit and having a pressure or flow rate change of air to forcibly mix air from the aeration unit and causing the variation in the flow of washing water in the aeration unit; It can be.
In this case, since the pressure or the flow rate fluctuates, air is forcibly mixed into the cleaning water from the aeration unit to cause a fluctuation in the flow of the cleaning water, so that the fluctuation can be easily caused.

[0016] In this case, the air mixing portion may be located near the water discharge hole. In this case, after the flow of the cleaning water fluctuates due to forced mixing of air, the cleaning water is discharged immediately. it can.

The above-mentioned variable water discharge means induces a change in the flow of the wash water so that the human body does not recognize a change in the water discharge state based on the discharge of the wash water in the state of the flow of the wash water as a stimulus change. Things. Further, the fluctuation inducing means can induce the fluctuation of the flow of the washing water at a frequency higher than a frequency at which the human body can recognize the intermittent stimulation as a stimulation change. In this way, the human body recognizes a change in the water discharge state based on the flush water discharge in the intermittent flow or the pulsating flow as described above, and a change in the flow for making the wash water discharge in the intermittent flow or the pulsating flow as a stimulus change. Can not be. Therefore, the washing water is discharged in an intermittent flow or a pulsating flow, so that the washing water is discharged as described above, and the washing water is not felt by the human body that the water mass is continuously hitting the human epidermis. Can cause fluctuations in the flow. For this reason, even in the case of the flush water spouting in the intermittent flow or the pulsating flow, it is possible to give the user a feeling as if the flush water spout is being received in a continuous flow.
Therefore, intermittent water discharge, i.e., flush water discharge with intermittent flow or pulsating flow, can be suitably used for normal ass cleaning and bidet cleaning where continuous cleaning with cleaning water is required,
There is no discomfort or discomfort. Then, the flow rate of the cleaning water can be reduced independently of the fluctuation of the flow of the cleaning water. Therefore, even if the flow rate of the washing water is reduced, the feeling of washing and the feeling of comfort based on the intermittent flow or the pulsating flow of the washing water can be maintained, so that the effectiveness of water saving can be further improved.

The following method can be used to induce the human body not to recognize the change in the water discharge state based on the discharge of the wash water in the intermittent flow or the pulsating flow. If the cycle of flushing water in intermittent or pulsating flow is about 0.3 seconds, the human body will relatively clearly recognize the stimulus change caused by receiving flushing water in intermittent or pulsating flow. Therefore, it is preferable that the period of the flush water discharge of the intermittent flow or the pulsating flow, that is, the fluctuation of the flow of the wash water for causing such water discharge is caused in a short period of about 0.2 seconds or less. Approximately 3H of flush water in intermittent or pulsating flow
If the frequency is lower than z, the human body can clearly recognize the stimulus change, and if the frequency exceeds this frequency, it cannot be recognized as the stimulus change. That is, there is a dead zone (dead zone frequency) when recognizing a stimulus change.
Therefore, in order to prevent the human body from recognizing the change in the water discharge state, it is preferable that the fluctuation of the flow of the washing water be caused to occur at a frequency of about 5 Hz or more included in the dead band frequency. It is preferable to cause this change at the frequency of the commercial power supply, because the control of the device for causing such change becomes easy.

In this case, the meaning of preventing the human body from recognizing a stimulus change is to intentionally prevent the human body from recognizing the stimulus change. Therefore, when compared with massage washing in which the human body recognizes any stimulus change (for example, stimulus change based on temperature change or flow rate change) in order to promote convenience during local cleaning, it is not recognized that stimulus change is recognized. Although different,
This is common in that intentional water discharge control is performed. That is, the stimulus change referred to here is a stimulus change inevitably occurring in performing the washing water spouting or continuation of the washing water spouting in any form of the washing water spouting. It does not include the stimulus change of the frequency and the cycle that occurs just inevitably.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment in which the human body cleaning apparatus according to the present invention is applied to a local cleaning apparatus for cleaning a local part of a human body will be described based on examples. FIG. 1 is a schematic perspective view showing a local cleaning device 10 according to an embodiment mounted on a toilet, FIG. 2 is a block diagram showing a schematic configuration of the local cleaning device centering on a water channel system, and FIG. FIG. 4 is a cross-sectional view illustrating a schematic configuration of an accumulator 73 provided in the system, and FIG. 4 is a cross-sectional view illustrating a configuration of a wave generation device 74 similarly provided in the waterway system. FIG. 5 is an explanatory view for explaining the flow of the washing water by the wave generating device 74. FIG. 6 is a schematic diagram schematically showing the setting of the wave generating device 74.
FIG. 3 is a block diagram illustrating a schematic configuration of a control system.

As shown in the figure, the local cleaning device 10 has a main body 12 fixed to the rear upper surface of the toilet BT, and a remote control device 14 for remotely controlling a cleaning operation, a drying operation and the like. The main body 12 is provided with a toilet seat 18 and a toilet lid 20 on the toilet opening side so as to be freely opened and closed. The main body has a sleeve 22 on the side of the toilet and a nozzle device 4 having a cleaning nozzle 24 for discharging cleaning water to a cleaning local portion.
0 (see FIG. 8) as well as various functional components described later.

The remote control device 14 is provided on its front with various buttons commonly used for defecation, and emits a signal (light signal) corresponding to the operated button. For example, when the buttocks washing button (not shown) operated when the buttocks washing is desired is operated, a signal to that effect is issued, and this signal is received by the main body 12 side. Then, in response to this signal, the ass washing is started. In addition,
This remote control device 14 has various buttons such as a drying button, a water pressure setting button, and a move setting button, in addition to a stop button and a bidet cleaning button. However, since the remote control device 14 is not directly related to the gist of the present invention, its detailed description will be omitted. Omitted.

The sleeve 22 has on its upper surface a display 28 for displaying the operation status of the main cleaning unit and a cover 29 which can be opened and closed. It should be noted that a light receiving unit that receives the optical signal emitted from the remote control device 14 is incorporated in the display unit. Further, a part of the cover 29 is a light transmitting window 29a that is colored so as to selectively transmit light from a seat sensor SS10 (see FIG. 7) for detecting a seated human body. Further, below the cover of the sleeve 22, a minimum number of buttons required for local cleaning are provided. Even when the remote control device 14 cannot be operated due to battery exhaustion or the like, local cleaning can be performed by button operation on the sleeve. Have been able to do so.

The local cleaning device 10 of this embodiment has the following water channel configuration and control system configuration for performing a cleaning operation, a drying operation, and the like in accordance with a button operation of the remote control device 14 and the sleeve portion 22. As shown in FIG. 2, the water channel system of the local cleaning device includes a water inlet side valve unit 50, a heat exchange unit 60, a flow control switching valve 65, and a wave generation unit 70 from an external water supply source (not shown). Then, cleaning water is guided from the wave generation unit 70 to the cleaning nozzle 24 via the flow path switching valve 71 of the cleaning nozzle 24, and the cleaning water is discharged from the nozzle as described later. These units are connected by upstream and downstream water supply pipes with the wave generation unit 70 interposed therebetween. That is, the water inlet side valve unit 50 and the heat exchange unit 60 are connected by the upstream side water supply line 51, and the flow path switching valve 71 downstream of the wave generation unit is connected to the downstream side water supply line 7.
2 connected.

The upstream water supply pipe 51 is connected to the water inlet valve unit 50 for directly supplying cleaning water (tap water) from a water supply source (water pipe) to the local cleaning device. The washing water guided to the upstream water supply pipe 51 is supplied to the water inlet valve unit 5.
After the dust and the like are captured by the strainer 52, the check valve 5
3. Flow into the pressure regulating valve 54. When the conduit is opened by the solenoid valve 55 downstream of the pressure regulating valve, the washing water is supplied to the pressure regulating valve 54 at a predetermined pressure (primary pressure: about 0.098 MPa ｛about 1.0 k).
In a state where the pressure is adjusted to gf / cm ² ６０), it flows into the heat exchange unit 60 of the instant heating type. As described above, the flow rate of the washing water flowing in under the pressure regulation is about 500 to 1000 cc / m.
in. The upstream water supply pipe 51 may be branched from a flush water tank (not shown) for storing flush water for flushing the toilet and piped to the water inlet valve unit 50.

In the upstream water supply pipe 51 between the water inlet valve unit 50 and the heat exchange unit 60, a first flush water discharge pipe 56a with a relief valve 56 interposed is provided. When the pipe pressure on the upstream side of the relief valve rises for some reason and the pipe is opened by the relief valve 56, the first cleaning water outlet pipe 56a sends the washing water in the upstream water supply pipe 51 to the outside. Derive. As a result, it is possible to avoid an increase in the tank internal pressure in the upstream water supply pipeline 51, and hence the heat exchange unit 60, so that it is possible to avoid fatigue due to deformation and contraction / expansion of the tank. There is no need to have a tank.

The first washing water outlet pipe 56a is disposed so that its end faces the deodorizing intake port and the local drying exhaust port. Therefore, the washing water led out from the outlet pipe is discharged to these intake ports and exhaust ports. Since the intake port and the exhaust port face the bowl portion of the toilet bowl, they may be contaminated by splashing water of dirt disposed on the ball portion. However, since the intake port and the exhaust port are washed with the washing water from the above-mentioned outlet pipe, it is preferable from the viewpoint of hygiene and cleanliness. Note that the flush water spouted from the outlet pipe flows down to the bowl bowl portion and does not stain the periphery of the toilet bowl.

The heat exchange unit 60 downstream of the water inlet valve unit has a tank 62 containing a heater 61. The heater 61 is configured by spirally winding a nichrome wire having good thermal responsiveness. Therefore, the tank 62 only needs to have a capacity capable of instantaneously heating the washing water by the heater 61, so that the size of the tank and thus the entire heat exchange unit can be reduced. Further, since the structure of the heat exchange unit 60 is simplified, there are advantages in manufacturing such as a reduction in the number of assembling steps and a reduction in cost. A bimetal or a thermal fuse (not shown) that mechanically shuts off abnormal heating is attached to or near the heater 61.

The heat exchange unit 60 cleans the heater 61 while detecting the temperature of the wash water flowing into the tank 62 and the temperature of the wash water flowing out of the tank 62 with the incoming water temperature sensor SS16a and the outgoing water temperature sensor SS16b. Warm the water to wash water at the set temperature. The washing water heated in this way is flow-adjusted by the flow control switching valve 65, and then flows into a later-described wave generation unit 70 and a second washing water outlet pipe 56b. The flow control switching valve 65 functions as a switching valve that switches between a pipe leading to the wave generation unit 70 and the second washing water outlet pipe 56b. It has a flow rate adjusting function of adjusting the flow rate (wash water discharge flow rate) to the wave generation unit 70 by changing the opening degree ratio with respect to 56b.
In this case, the cleaning water having the difference between the flow rate of the cleaning water that has reached the flow control switching valve 65 and the flow rate of the cleaning water discharged so as to flow to the wave generation unit 70 by the flow control switching valve 65 is supplied to the second cleaning water discharge conduit 56b. Is discharged from In other words, the amount of flush water corresponding to the set flow rate of the flow control switching valve 65 is discharged from the second flush water discharge conduit 56b. Through derivation of the wash water to 56, the flow rate of the wash water spout will be adjusted. For this reason, the second washing water outlet conduit 56b through the adjustment of the opening ratio as described above.
It is possible to supplement the flow rate adjustment by the flow control switching valve 65 by discharging the washing water from the nozzle, and it is possible to enhance the effectiveness of the flow rate adjustment. The flow control switching valve 65 is connected to the second washing water outlet pipe 56b.
It is also possible to send the cleaning water only to the cleaning water. The flow control switching valve 65 changes the opening ratio as described above when feeding the cleaning water having undergone the flow rate adjustment to the wave generation unit 70, so that not only the wave generation unit 70 but also the second
The washing water is also sent to the washing water outlet pipe 56b. The second washing water outlet pipe 56b is connected to a pipe so that the washing water flows down to the bowl portion of the toilet bowl. It is arranged to face. Therefore, the second washing water outlet pipe 5
The inlet port and the outlet port for local drying can be washed with the washing water from 6b. In addition, if the heat exchange unit 60 is covered with a heat insulating material such as a foam material, the power consumption of the heater for warming the cleaning water can be reduced together with the effect of keeping the cleaning water warm by the heat insulating material. That is, the energy saving effect increases.

The heat exchange unit 60 has a float switch SS18 for detecting the water level in the tank.
This float switch is configured to output a signal to that effect when the water level of the heater 61 is equal to or higher than a predetermined water level at which the heater 61 is submerged. Then, the electronic control unit 80 controls the energization of the heater 61 under the condition that this signal is input, so that it is possible to avoid a situation in which the heater 61 that is not submerged is energized, that is, a so-called empty heater. . The heater 61 of the heat exchange unit 60 is connected to an electronic control unit 8 described later.
With 0, the control is optimally performed while combining the feed forward control and the feedback control.

Further, the heat exchange unit 60 is provided with a vacuum breaker 63 at the outlet of the washing water from the tank 62, that is, at the tank connection point of the pipe downstream of the tank. The vacuum breaker 63 introduces air into the pipeline to cut off the cleaning water in the pipeline downstream of the tank, and prevents the backflow of the cleaning water from the downstream side of the tank.

The wave generation unit 70 has an accumulator 73 and a wave generation device 74 from the upstream side.
As shown in FIG. 3, the accumulator 73 includes a housing 73a connected to the upstream water supply pipe 51 upstream of the wave generator 74, a damper 73c disposed in a damper chamber 73b in the housing, and a damper 73c. And a spring 73d that exerts an urging force. Therefore, the accumulator 73 reduces the water hammer of the upstream water supply pipe 51 upstream of the wave generation device 74. Therefore, the effect of the water hammer on the temperature distribution of the cleaning water in the tank 62 can be reduced, and the temperature of the cleaning water discharged can be stabilized. In this case, the accumulator 73 may be disposed close to or integrated with the wave generating device 74 to quickly propagate the pulsation generated by the wave generating device 74 to the upstream side as described later. It is preferable from the viewpoint that it can be effectively avoided. In this case, the accumulator 73 includes a damper 73c.
And a configuration having only a damper chamber 73b as a mere air chamber without a spring 73d for biasing the same, or forming an upstream air supply pipe 51 as an air reservoir that is intentionally expanded partly upward. Can also.

As shown in FIG. 4, the wave generation device 74
A plunger 74b is slidably provided in a cylinder 74a connected to the upstream / downstream water supply conduits 51 and 72. Then, the plunger 74b is moved forward and backward by the excitation control of the electromagnetic coil (pulsation generating coil) 74c. The plunger 74b moves downstream from the original position (plunger original position) shown by the excitation of the pulsation generating coil 74c, but when the coil excitation disappears, the plunger 74b receives the urging force of the upstream / downstream springs 74d and 74e. Return to position. Since the plunger 74b has a check valve 74f formed of a steel ball and a spring inside the plunger 74b, when the plunger moves from the plunger original position to the downstream side, the cleaning water in the cylinder 74a is pressurized to supply water to the downstream water supply line. Push out to 72. At this time, since the original position of the plunger is constant, a fixed amount of washing water is sent to the downstream water supply pipeline 72. Thereafter, when returning to the original position, the flush water flows into the cylinder 74a via the check valve 74f, so that the next time the plunger 74b moves downstream, a certain amount of flush water is again supplied to the downstream water supply line 72. Will be sent to Moreover,
When the plunger 74b returns to its original position, the washing water is drawn into the plunger downstream, that is, the downstream water supply pipe 72.
The reciprocation of the water causes a pulsation in which the pressure periodically fluctuates up and down.
Pour

In this case, the wave generating unit 70 is supplied with the above-mentioned primary-pressure washing water via the upstream water supply line 51. Therefore, as described above, the washing water flowing into the cylinder 74a via the check valve 74f during the return of the plunger 74b to the original position is affected by the pressure loss by the check valve 74f and the suction of the washing water on the downstream side. Although not maintained at the primary pressure, the water is sent to the downstream water supply pipeline 72. When this state is represented by a diagram, as shown in FIG.
The pressure pulsated around the primary pressure is sent from the wave generator 74 to the downstream water supply pipe 72, and further to the washing nozzle 24, and is discharged to a local portion as described later. Moreover, the washing water pressure sent downstream from the wave generating device 74 becomes zero due to the flushing water flowing into the cylinder 74a via the check valve 74f when the plunger 74b returns to the original position as described above. Absent. The pulsation transition of the washing water pressure is reflected in the transition of the washing water flow rate. In this case, the primary pressure, which is the center of the pulsation, is regulated by the pressure regulating valve 54. Therefore, if the pressure regulating valve is configured to be capable of variably adjusting the pressure, the pulsation can be changed up and down with the locus shown in FIG. Can be shifted. And
Since the pulsation transition of the washing water pressure is reflected in the transition of the washing water flow rate, if the pulsation is shifted, the water discharge amount itself can be adjusted up and down.

The pulsation cycle MT shown in FIG. 5 is synchronized with the excitation cycle of the pulsation generating coil 74c, and can be variously set as described later through control of changing the excitation cycle. In addition, since only the coil excitation for reciprocating the plunger 74b is required to generate the pulsating flow of the washing water, the configuration of the wave generating device 74 can be simplified.

In this embodiment, as shown in FIG.
Since the wave generation device 74 is disposed downstream of the tank 62 of the heat exchange unit 60, the pulsating flow of the washing water has a larger diameter than the water supply pipe, and therefore does not pass through a tank that easily causes pulsation damping. . Therefore, the pulsating flush water can be sent to the downstream water supply pipe 72 and, consequently, the washing nozzle 24 without being affected by the pulsation attenuation by the tank.

Further, when installing the wave generating device 74, a so-called anti-vibration rubber is interposed. Therefore, the vibration caused by the pulsation can be suppressed and the generation of abnormal noise due to the vibration can be suppressed by the vibration damping action of the vibration-proof rubber. In this case, the wave generating device 74 is installed on a resin plate (not shown) whose specific gravity is increased by mixing a powder or a granular material having a high specific gravity such as a metal, and this resin plate is interposed with an anti-vibration rubber. Then, it can be arranged on the bottom plate of the main body. In this way, the vibration source mass itself is increased as the sum of the wave generating device 74 and the resin plate, so that the vibration caused by the pulsation can be made less likely to occur. Can be. In order to increase the vibration source mass in this manner, instead of installing the wave generation device 74 on the resin plate having a high specific gravity as described above, the wave generation device is installed on a member or unit having a large mass of the local cleaning device. 74 can also be installed. In this way, no resin plate is needed,
There is an advantage in manufacturing such as a reduction in cost due to a reduction in the number of members, and the size of the apparatus can be reduced. Further, if the vibration isolating rubber is also provided between the wave generating device 74 and the resin plate, the vibration isolating rubber and the vibration isolating rubber on the lower surface of the resin plate can be used.
A two-degree-of-freedom vibration isolation damper mechanism as shown in FIG. 6 can be configured. Therefore, the spring constant k effective for vibration reduction
By selecting an anti-vibration rubber so that 1, k2 and damping coefficients c1, c2 can be obtained, a high damping effect can be exerted, and vibration propagation to a toilet seat or the like can be effectively avoided. In addition,
By such vibration suppression, generation of abnormal noise due to vibration can be effectively suppressed.

In addition to the fact that the accumulator 73 is disposed between the wave generating device 74 and the tank 62, unnecessary pulsating pressure is not applied to the tank 62. For this reason, an inadvertent rise in the tank internal pressure can be avoided,
Not only is it possible to avoid fatigue due to deformation and contraction / expansion of the tank, but it is not necessary to use a tank having an unnecessarily high pressure resistance.

In the present embodiment, the construction of the above-mentioned water channel system was as follows. That is, both the upstream and downstream water supply lines 51 and 72 are made of high-hardness flexible piping, and the hardness of the downstream water supply line 72 is made larger than that of the upstream water supply line 51. . Also, coupler type joints were used for these pipe lines and the pipe connection portions of the respective units. Furthermore, each unit was arranged close to each other to shorten the length of the water supply pipe between the units. As a result, expansion and contraction, expansion and contraction of the water supply pipe itself are less likely to occur, and the influence of pulsation damping due to this expansion and contraction can be suppressed. Can be sent.
In particular, since the wave generation device 74 and the flow path switching valve 71 are arranged close to each other, the pulsation damping when the wash water passes through the downstream water supply pipe 72 during this time, the downstream water supply pipe 72 has a high hardness. Combined with the flexible piping, it can be suppressed more effectively. In this case, the upstream and downstream water supply lines 51 and 72 can be configured as follows. For example, the water supply pipes are made of flexible pipes of the same material with high hardness, and the pipe wall of the downstream water supply pipe 72 is made thicker than the upstream water supply pipe 51, so that the water supply pipes have different hardness. Can occur. Further, the material of the two water supply pipes may have a certain degree of hardness.

The control system of the local cleaning device of this embodiment is shown in FIG.
As shown in FIG. 1, the electronic control unit 80 mainly includes a microcomputer. The electronic control unit 80 includes various sensors such as the above-described seating sensor, incoming / outgoing water temperature sensor, a float switch, and a fall detection sensor S.
In step S30, in addition to the signal from the washing water amount sensor SS14, various operation buttons such as the washing button on the remote control device 14 and the sleeve 22 and the operation status of the knob are input by a wired or wireless (optical signal) via an input circuit. I do. in this case,
The washing water amount sensor detects the amount of washing water in the downstream water supply line 72, and outputs the detection result to the electronic control unit 80. The fall detection sensor SS30 detects the tilt state of the main cleaning unit and outputs the result to the electronic control unit 80. Based on the input signal, the electronic control unit 80 controls the solenoid valve on / off valve of the water inlet side valve unit 50, controls the energization of the heater of the heat exchange unit 60, controls the flow, controls the display of the sleeve display unit, Electricity control of the drying unit 79 including a drying heater and a fan motor for local drying, a deodorizing unit (not shown) including an ozonizer and a suction fan motor for removing odors, and heating including a heater and a fan motor for indoor heating. In addition to executing the energization control of the unit (not shown), the control unit executes the nozzle drive motor control of the nozzle device 40 and the pulsation frequency control through the excitation control of the pulsation generation coil 74c based on the signal. This pulsation frequency control will be described later in detail. Note that the drying heater for local drying can be shared with a heater for indoor heating, and the fan motor for local drying can be shared with a fan motor for odor removal or indoor heating.

Next, the nozzle device 40 included in the local cleaning device 10 of this embodiment will be described. FIG. 8 is a schematic perspective view showing the nozzle device 40, and FIG. 9 is a view 9-9 in FIG.
FIG. 10 is a schematic cross-sectional view taken along a line, and FIG.

As shown, the nozzle device 40 is housed and installed in the main body 12 (see FIG. 1) of the local cleaning device 10. The nozzle device 40 includes a base 41 fixedly installed on the main body 12, a nozzle drive motor 42 incorporated and disposed on a pedestal 41a on the upper surface of the base, and a forward / reverse rotation of the motor converted into forward / backward movement for cleaning. A transmission mechanism 43 for transmitting to the nozzle 24, and a nozzle holder 41 erected on the upper surface of the base and slidably holding the cleaning nozzle 24 on the toilet bowl side.
b, and a guide rail portion 44 for guiding the cleaning nozzle 24 along a nozzle advance / retreat trajectory described later.

The transmission mechanism 43 includes a drive pulley 43a fixed to the rotating shaft of the nozzle drive motor 42, driven pulleys 43b before and after along the nozzle advance / retreat trajectory, and a timing belt 43c stretched over these pulleys. And a tension roller 43d for applying tension to the belt. The timing belt 43c is provided via a belt gripper 24b extending from the cylindrical portion 24a of the cleaning nozzle 24.
The nozzle is engaged and fixed. Therefore, the cleaning nozzle 24 is driven forward and backward in accordance with the forward and reverse rotation of the timing belt 43c.

The guide rail portion 44 is formed so as to be curved concentrically with the arc-shaped nozzle advance / retreat track 45 shown in FIG. As shown in FIG. 9, the guide rail portion 44 is engaged with the cleaning nozzle 24 via a track holding body 24 c below the rear end of the nozzle. This track gripper 24c
Grips the rail portions left and right of the guide rail portion 44 up and down,
The rail gripping portion has a gripping portion 24d having a track gripping surface having the same radius of curvature as the nozzle advance / retreat track 45. The grip portion 24d has a sliding property with respect to a rail portion and a vibration absorbing function, and is made of a rubber-based material that has been subjected to a material blending process such as oil impregnation and WAX blending, or a surface such as a Teflon coat, a halogen process, and a satin finish. Manufactured using processed rubber-based materials. Therefore, as described later, the wave generation device 7
Even if the pulsating cleaning water flows into the cleaning nozzle from 4 and the vibration due to the pulsating flow occurs in the cleaning nozzle, the propagation of the vibration to other members can be prevented. For this reason, generation of abnormal noise due to vibration can also be suppressed. Further, the nozzle holding portion 41b on the toilet bowl portion side slidably holds the cleaning nozzle 24. Therefore, the cleaning nozzle 24 is attached to the timing belt 4
When driving forward and backward by 3c, it is driven forward and backward along the guide rail portion 44, and its movement trajectory coincides with the arc-shaped nozzle forward and backward trajectory 45. In this case, the cleaning nozzle 24
However, the cylindrical portion 24a is curved along the axial direction with the same radius of curvature as the nozzle advance / retreat orbit 45. For this reason, the washing nozzle 24 moves back and forth between the standby position HP in the main body and the washing position (the buttocks washing position AWP, the bidet washing position VWP) in the toilet bowl in accordance with the arc-shaped nozzle advance / retreat trajectory 45. Drive forward and backward. Note that the nozzle holding portion 41b is configured to only partially contact the nozzle outer wall in order to reduce the sliding resistance of the cleaning nozzle. Then, if a rubber-based material exhibiting the slidability and the vibration absorbing function after receiving the above-mentioned compounding treatment or surface treatment is arranged in the contact portion, the above-described effect of preventing the propagation of vibration and the effect of avoiding generation of abnormal noise are provided. Can be increased.

As a result, as shown in FIG. 10, the cleaning nozzle 24 at the standby position HP can be mounted on the nozzle device 40 so as to approach the upper surface of the toilet bowl along its axial direction. Therefore,
The height (nozzle height) of the back end of the washing nozzle from the toilet
It can be lower than when the cylindrical cleaning nozzle is moved back and forth along an inclined straight orbit. Therefore, the main body 12 (see FIG. 1) can be lowered by the reduction of the nozzle height, and the local cleaning device itself can be downsized. Further, since the angle of the upper surface of the nozzle head changes due to the advance of the nozzle, and the angle of spouting the washing water from the head changes, the washing range can be largely moved with a small nozzle movement. Specifically, even if the reciprocating range of the nozzle during the move cleaning described below is narrowed, the cleaning water can be discharged over the cleaning range required for the move cleaning. Alternatively, even if the nozzle moving distance from the buttocks washing position AWP to the bidet washing position VWP is short, the washing location with the washing water can be changed from the buttocks to the bidet. In addition,
While the above-mentioned washing nozzle 24 has a straight pipe shape,
The nozzle advance / retreat trajectory 45 may also be a straight trajectory, and the nozzle may be advanced / retracted along the straight trajectory.

In the nozzle device 40 of this embodiment, since the cleaning nozzle 24 and the guide rail portion 44 have a vertical relationship as described above, the size can be reduced in the width direction. Therefore, the nozzle device 40 and the wave generation device 74 can be arranged closer to each other, so that the effect of suppressing pulsation attenuation in the downstream water supply pipe 72 can be enhanced. When the nozzle device 40 was installed, the base 41 (see FIG. 8) was disposed on the bottom plate of the main body with the vibration-proof rubber interposed therebetween. Therefore, even if the vibration accompanying the pulsation propagates to the nozzle device 40, the vibration can be effectively suppressed by the vibration damping action of the vibration-proof rubber, and
Generation of abnormal noise due to vibration can also be suppressed.

Next, the cleaning nozzle 24 will be described.
FIG. 11 shows a flow path switching valve 71 of the cleaning nozzle 24.
FIG. 12 is an exploded perspective view of a main part of the flow path switching valve 71 for explaining the configuration of FIG. FIG.
Is a plan view showing the nozzle head 25 in a plan view and a part of the periphery of the head cut away, and FIG. 14 is a plan view showing a modified example of the nozzle head 25.

As shown in FIGS. 8, 9 and 11, the flow path switching valve 71 is located at the rear end of the washing nozzle 24. The pulsating flow of the washing water sent from the wave generating device 74 is switched to the nozzle flow path for cleaning the tail of the cleaning nozzle 24, the soft cleaning, and the bidet cleaning.

The flow path switching valve 71 has a casing 71a having a switching mechanism described below. The flow path switching valve 71 is integrated with the cleaning nozzle 24 by welding the casing 71a to the rear end surface of the cylindrical portion 24a of the cleaning nozzle 24. Therefore, it advances and retreats along the trajectory together with the cleaning nozzle 24 as described above.

The casing 71a has, from the nozzle side, a stator 71 having a communication hole communicating with each flow path in the nozzle.
b, a rotor 71c that rotates for switching the flow path and selectively opens each communication hole of the stator 71b;
c, and a housing 7 for rotatably housing the coupling 71d.
1e and a spring 71f for urging the rotor 71c toward the stator 71b. As shown in FIG.
The communication holes 71g to 71i of the stator 71b are
On the side facing 1c, the opening is equally divided, and on the nozzle side, the inner nozzle flow path shown in FIG. The second nozzle flow path 26b and the third nozzle flow path 26c of the bidet cleaning nozzle flow path are opened so as to communicate with the respective flow paths.
That is, the communication hole is formed to be curved in the stator 71b. These communication holes may be arranged alongside the openings of the nozzle flow paths at the rear end of the washing nozzle. In this case, the communication holes may be straight holes. In addition, the above-mentioned first to third nozzle flow paths 26a to 26c
Is the cylindrical portion 24a up to the nozzle head 25 at the tip of the nozzle.
Are formed in the longitudinal direction.

The rotor 71c has a notch 71 which can open one of the communication holes equally opened on the upper surface of the stator 71b.
j, and the communication hole is opened by overlapping the notch 71j with the opening of the communication hole. In this case, the rotor 71c can block each communication hole by positioning the notch 71j between the adjacent communication holes. That is, the notch 71
j is located between adjacent communication hole openings.
When the is slightly rotated, the washing water can be sent to the above-mentioned respective flow paths in the nozzles through the communication holes. In addition, for the convenience of draining (draining) water remaining in the nozzle, the rotor 71c is provided with a notch that can overlap with all the communication hole openings, and when draining, all of the notches are used. Can be opened.

The coupling 71d is mounted on the rotating shaft of the drive motor 71k of the flow path switching valve 71, and positions the rotating shaft pin 71n in the slit 71m. The coupling 71d positions the rotary key 71q in the slit 71r of the rotor 71c. Therefore, when the drive motor 71k rotates forward and reverse, the rotation is transmitted to the coupling 71d by the rotation shaft pin and to the rotor 71 by the rotation key 71q.
c. The notch 71j selectively opens one of the communication holes as described above by the rotation of the rotor 71c, so that the pulsation from the wave generation device 74 Stream wash water is supplied.

In this case, the washing water from the wave generating device 74 passes through the downstream water supply pipe 72 (see FIG. 2) and the connection joint 71s provided in the casing 71a of the flow path switching valve 71, and this flow switching valve 71 Flow into In connecting the downstream water supply line 72 from the wave generation device 74 to the connection joint 71s, a measure such as disposing the wave generation device 74 below the connection joint 71s is taken, and the connection is established in the middle of the downstream water supply line. Air accumulation was disabled. Therefore, during the time when the pulsating flow of the washing water reaches from the wave generating device 74 to the flow path switching valve 71, the pulsation is attenuated because there is no air pool and the pipe has a high hardness as described above. Can be suppressed more effectively. In addition, the wave generation device 74
The pipe line from which the pulsating flush water reaches the nozzle device 40 is only the downstream water supply pipe line 72 to the wave generation device 74 and the flow path switching valve 71. Then, in a place where the downstream water supply pipe 72 may come into contact with surrounding members,
A cushioning material such as a vibration-proof rubber was arranged. Specifically, the vibration-proof rubber was attached to the surrounding member side, or the vibration-proof rubber was wound around the water supply pipe. Therefore, in combination with the fact that the downstream-side water supply pipe 72 has a high hardness as described above, pulsation attenuation can be more effectively suppressed.

The members such as the casing of the flow path switching valve 71 are made of polyphenylene sulfide (abbreviation: PPS), polyacetal (abbreviation: POM), polybutylene terephthalate (abbreviation: PBT), glass fiber reinforced polybutylene terephthalate (abbreviation: GF / PBT) It is formed using engineering plastics that are highly durable and heat-resistant. Therefore, since the washing water flow path in the flow path switching valve functions as a high-strength pipe, pulsation attenuation due to the expansion and contraction of the pipe does not occur. When supplying the pulsating flow cleaning water from the wave generation device 74 to the nozzle flow path, the flow path switching valve 71 is integrated with the cleaning nozzle 24 and there is no piping therebetween, so that the pulsation damping is reduced. Hardly ever happen. Further, when switching the water supply destination as described above, since the rotation of the rotor 71c is used, the damping of the pulsation can be more effectively reduced as compared with a flow path switching valve using the elasticity of an elastic body such as a diaphragm. Can be suppressed.

The flow path switching valve 71 has the following advantages. The flow path switching valve 71 is not integrated with the wave generation device 74 but is integrated with the downstream cleaning nozzle 24, and is separated from the wave generation device 74 that can be a vibration source with the generation of the pulsating flow. Therefore, the vibration source can be only the wave generation source. The flow path switching valve 71 moves forward and backward integrally with the cleaning nozzle 24. However, since the drive motor 71k has its coil winding portion resin-molded, the cleaning water scatters to the drive motor 71k when it advances to the cleaning position. There is no problem in driving the motor. Furthermore, the downstream water supply pipe 72 leading to the nozzle device 40 can be reduced to a single pipe, so that the load of the pipe when the nozzle moves forward and backward can be reduced. Therefore, the load torque on the nozzle drive motor 42 can be reduced.

The nozzle head 25 of the cleaning nozzle 24 has a normal tail water discharge hole 31 for cleaning the hips, a soft water discharge hole 32 for soft cleaning of the hips, and a bidet water discharge hole 33 for cleaning the bidet. The nozzle head 25 is provided with the cleaning nozzle 2
The first head flow path 34, the second head flow path 35, and the third head flow path 36, which are fixed to the tip of the cylindrical portion 24a in a water-tight manner and are formed inside the nozzle head, respectively, Nozzle channel 26a, second nozzle channel 26b, third
It is connected to the nozzle channel 26c. As shown in the drawing, these nozzle flow paths reach the above-described water discharge holes on the upper surface of the nozzle head. Therefore, when the flow path switching valve 71 (see FIG. 8) switches the supply destination of the cleaning water to any one of the first to third nozzle flow paths 26a to 26c at the rear end of the nozzle, the cleaning water is switched. The water is discharged from each of the water discharge holes through the nozzle flow path and the head flow path. In this case, the pulsating flush water is supplied from the wave generation device 74, so that pulsating flush water is discharged from each water discharge hole.

In this case, each of the water discharge holes 31 to 33 of the nozzle head 25 has the smallest diameter at the bottom water discharge hole 31, and the diameter of the bidet water discharge hole 33 and the soft water discharge hole 32 is larger than that of the bottom water discharge hole. Have been. For this reason, the water pressure setting buttons SWhu, SWh of the remote control device (not shown)
Under the situation where the water force is set to be constant by d,
The water discharge speed of the washing water from each water discharge hole is the fastest in the bottom water discharge hole 31, and is slower in the bidet water discharge hole 33 and the soft water discharge hole 32 than in the bottom water discharge hole 31. As described above, the soft cleaning using the soft water discharge hole 32 having a low water discharge speed is such that the washing feeling received from the water discharge is at least softer by the lower water discharge speed than in the case of the normal butt cleaning at the bottom water discharge hole 31. I do. Note that the bidet water discharge hole 33 and the soft water discharge hole 32
Is not limited to a single hole as shown,
As shown in FIG. 14, a plurality of small-diameter fine holes may be arranged, and the whole may be formed as a bidet water discharge hole 33 or a soft water discharge hole 32. In this case, if the total area of the water discharge holes, which is the sum of the areas of the plurality of pores, is equal to or more than the area of the bottom water discharge holes, the water discharge becomes softer as a whole of the pores than in the case of the bottom cleaning.

Next, taking the ass washing as an example, the state of spouting of washing water by the local washing device 10 of this embodiment will be described. FIG. 15 is an explanatory diagram illustrating the state of excitation of the pulsation generating coil 74c of the wave generation device 74 that generates a pulsation at the time of flushing water discharge. FIG. FIG. 17 is a timing chart schematically illustrating a state in which the cleaning water is spouted from the tail spout hole 31 of the nozzle head 25.

The electronic control unit 80 includes a pulsation generating coil 74
Upon exciting c and generating a pulsation in the wave generation device 74, a pulse-like signal is output. Then, the pulse signal is output to a switching transistor 86 (see FIG. 29) connected to the pulsation generating coil 74c and turned on. Therefore, the pulsation generating coil 74c turns ON the switching transistor 86 according to the pulse signal.
Excitation is repeatedly performed by turning OFF, and the plunger 74b is periodically reciprocated as described above. As a result, wash water is supplied from the wave generation device 74 to each of the water discharge holes of the nozzle head 25 in a pulsating flow state in which the pressure periodically fluctuates up and down, and the pulsating flow of wash water is discharged from each of the water discharge holes. You.
At this time, the electronic control unit 80 variably controls the frequency of the pulse signal in a predetermined frequency range,
On / off of the coil excitation pulse is duty ratio controlled.
Thereby, various pulsations can be caused. In this case, a pressure sensor for detecting the pressure of the pulsation caused by the wave generating device 74 may be provided on the downstream side immediately after the wave generating device 74, and the duty ratio control may be fed back by the detection value of this sensor. The position of the sensor is not limited as long as it can reflect the pulsating pressure. For example, it may be provided in the vicinity of the washing nozzle, or may be provided in the vicinity or substantially integrally by using the mechanism of the wave generation device 74.

As shown in FIG. 15, assuming that the pulsation cycle MT shown in FIG. 5 is the cycle T1 and the ON time of the pulse signal is t1, the duty ratio is (t1 / T1) × 100 (%).
Is represented by When the pressure pulsation as shown in FIG. 5 occurs, the amount of the washing water decreases to a value represented by the duty ratio as compared with the continuous flow. As shown in FIG. 16, the amount of water of such a pulsating flow is changed from the maximum flow rate Qmax to the minimum flow rate Qm.
increase / decrease in the range of in.
From the minimum flow velocity Vmin. In FIG. 16, the reason why the minimum flow rate Qmin and the minimum flow velocity Vmin are not zero is that the pulsation pressure by the wave generating device 74 is not zero as described above even at its minimum.

In this case, as described above, if the primary pressure regulating valve 54 can be variably adjusted, the maximum flow rate Qmax, the minimum flow rate Qmin, and the maximum flow rate shown in FIG. Vmax and minimum flow velocity Vmin
Can be adjusted up and down. That is, the water discharge amount can also be adjusted by the primary pressure regulating valve (pressure increasing / decreasing regulating valve).

When a continuous flow of washing water is discharged from a water discharge hole (for example, the tail water discharge hole 31) as in the prior art, the wash water from the water discharge hole is converted into a continuous flow as shown in FIG. Take the form of water discharge. On the other hand, when the pulsating flow of the wash water is discharged as described above, as shown in FIG. 17B, the wash water is discharged in a water discharge mode that can be expressed as a discrete or water mass state. You. Thus, the wave generation device 74
The reason why the washing water pulsated by the above is ejected from the water discharge hole of the washing nozzle to be in a discrete or water lump state will be described with reference to FIGS. 16 and 18.

FIG. 18 is an explanatory view for explaining a process in which the pulsating flow of the cleaning water is amplified into a pulsating flow when the pulsating cleaning water is discharged from the assumed water discharge hole 30. FIG.
As shown in (A), when the amount of washing water is pulsated by the wave generation device 74, the flow velocity V is similarly changed to be pulsating.
That is, the amount of the flushing water discharged is the maximum flow rate Q.
When it reaches max, the flow velocity also reaches the maximum velocity Vmax, and the instantaneous flow velocity and flow rate fluctuate with time. FIG.
6. Each part of the pulsating flow of the washing water is denoted by Wp1, Wp2, Wp.
3, Wp4, and Wp5, the amount of each part is Wp1
(= Wp5) <Wp2 (= Wp4) <Wp3, and the respective flow rates are also V1 (= V5) <V2 (= V4) <V
It becomes 3. Therefore, from FIG.
As the process proceeds to (C), Wp3 has a higher speed than Wp2, so that Wp3 merges with Wp2 and further Wp1.
Into a large body of water. Thus, the maximum flow rate of W
When p3 is successively combined with Wp2 and Wp1 in front of it, it forms a large lump and lands on a human body local part (cleaning surface). When the washing water hits a human body part, the washing water is in a state of a water mass having a large collision energy (washing strength). This flow velocity V3 is the maximum flow velocity Vma shown in FIG.
Since it is x, the wash water spouted by the pulsating flow is spouted from the spout hole in a spout form in which the state of the combined water mass appears at each pulsation cycle MT. In addition, since such a phenomenon occurs in the pulsation cycle, the water mass that has passed through the coalescence of the maximum flow velocity Wp3 as described above repeatedly appears, and the water mass at a certain water discharge timing and the water mass at the next water discharge timing merge. Will be moved (spouted) at substantially the same speed (maximum speed) as the water mass that has passed. In addition, the respective water masses are in a state where they are connected by Wp4 and Wp5 that are discharged with a delay from Wp3 at the maximum flow velocity.

Next, a description will be given of the difference in cleaning intensity between the case where the washing water is ejected from the tail water discharge hole 31 as a continuous flow and the case where the washing water is ejected as a pulsating flow. The pulsating flow has twice or more the cleaning intensity at the same amount of water as compared with the conventional continuous flow. This is considered as the following reason. The energy E when the washing water having the mass m collides with the wall surface at the speed V is represented by the equation (1). E = (1/2) mV ² (1) Further, the force at the time of collision with the wall surface is represented by f, and the time required for the washing water flow at the speed V to be reduced to 0 and disappear is Δ.
Assuming that t, the energy E is represented by the impulse by equation (2), and the force at that time is represented by equation (3), where α is the deceleration. E = fΔt (2) f = mα (3) FIG. 19 is an explanatory diagram illustrating a state in which the washing water stream collides with the wall surface. In FIG. 19, the water masses are W1, W2, and W3.
Assuming the following three forms, the cleaning strength of the cleaning water flow of each of these forms will be examined. Here, the water body W1 has a long shape with a cross-sectional area S1, and the water body W2
Is a form in which the cross-sectional area S2 is twice as long as S1 and is short, and the water body W3 is a form having a cross-sectional area of S1 and a half length of the water body W1. In these embodiments, the water mass W1 corresponds to a continuous flow, and the water mass W3 corresponds to a pulsating flow. At this time, the water mass W
Time Δ until water 1 and water mass W2 collide with the wall and disappear.
t1 and Δt2 satisfy Δt1> Δt2. This means
Equation (3) indicates that the deceleration α is large and the water mass disappears with a large force in a short time, and the force f1 of the water mass W1 and the force f2 of the water mass W2 satisfy f1 <f2. Therefore, it can be understood that the force f2 applied to the human body local part is larger in the water body W2 that disappears in a short time than in the continuous water body W1. For this reason, the water mass W3 corresponding to the pulsating flow has a mass of m / 2 as compared with the water mass W1, but the force f3 does not decrease much as compared with f1. Therefore, when jetted as a pulsating flow, the amount of water can be made smaller than that of the continuous flow, and the force at the time of colliding with the human body local part does not decrease so much. Can be removed.

Next, the relationship between the washing intensity, which is an index indicating the feeling of washing of a human body part, and the feeling of volume will be described. FIG. 20 is an explanatory diagram illustrating a state in which the pressure sensor plate Ps is installed facing the buttocks discharge hole 31 at a predetermined distance La. The predetermined distance La is set at a position where the human body part is cleaned. The pressure sensor plate Ps is a sensor that includes detection units in a two-dimensional matrix and outputs the detection values of each detection unit independently. Using such an apparatus, the peak value of the pressure output from each detection unit when the washing water was spouted from the tail spout hole 31 of the washing nozzle 24 was measured. FIG. 21 shows the result. FIG. 21 is an explanatory diagram three-dimensionally expressing the position on the pressure sensor plate Ps and the peak value of the pressure, and the XY plane represents the position of the pressure sensor plate Ps, that is, the position of the object to be detected. And the Z axis represents the peak value of the pressure at each position. FIG. 21 (A) shows that the flow rate of the washing water reaching the spout hole is 1.1 L / min. FIG. 21 (B) is a measurement result at the time of the continuous flow of FIG.
5 L / min. 5 shows the measurement results at the time of the pulsating flow. FIG.
In, the cleaning intensity, which is a factor that affects the feeling of cleaning, is represented by a peak value of pressure, while the feeling of volume is represented by the volume of a mountain, which is the overall pressure distribution.

When these are compared, the peak value of the pressure in the pulsating flow of FIG. 21B is greatly increased in spite of the fact that the amount of washing water is halved as compared with the continuous flow of FIG. 21A. ing. This indicates that the washing pressure on the water body is large, that is, the washing strength is large.
FIG. 22 is a timing chart showing a detection signal detected from one of the detection units. FIG.
FIG. 22B shows a pulsating flow. It can be seen that the pulsating flow has a higher peak value and a higher intensity than the continuous flow. Also, the volume of the peak, which is the overall pressure distribution, is much larger in the pulsating flow of FIG. 21B than in the continuous flow of FIG. As described above, the pulsating flow has an extremely large volume as compared with the continuous flow, and it can be understood that the pulsating flow has excellent detergency when the sensual element of the cleaning feeling is embodied in a numerical value.

FIG. 23 shows the result of examining the actual cleaning amount by such a pulsating flow by comparing it with a continuous flow. FIG.
It is a graph showing the relationship between the average amount of water discharged and the amount of cleaning, that is, when removing dirt attached to the human body part with cleaning water,
The average required water discharge is shown. As can be seen from FIG. 23, in order to remove the dirt of the cleaning amount D1 adhered to the human body part, it was found that the pulsating flow had a water amount of about ４ of that of the conventional product which can only discharge the continuous flow of cleaning water. . As described above, by the method of discharging the pulsating flow of the cleaning water from the water discharge holes, the cleaning intensity and the user's cleaning feeling can be significantly improved.

Further, when the pulsating flow of the washing water is spouted, the washing intensity is increased and the stimulation to the local human body is increased. This can be explained as follows. Generally, a stimulus that can be sensed at the same location on the human epidermis (in this embodiment, water masses W1 and W1 shown in FIG. 19).
2. When a stimulus caused by the collision of W3 is intentionally repeatedly applied, the repetition interval (in this embodiment, the pulsation cycle M
If T) is long and the repetition frequency is low, the person perceives this repeated stimulus as a vibration stimulus each time. On the other hand, if the repetition interval is short and the repetition frequency is high, a person cannot perceive this intentionally repeated stimulus as a vibration stimulus but perceives it as a continuous stimulus. In other words, there is a dead band frequency that cannot be sensed as a vibration stimulus for a repetitive stimulus to the human epidermis. Here, in the washing of the local area and its surroundings, it is assumed that the magnitude of the flow rate or flow velocity of the washing water is repeatedly spouted (hereinafter, referred to as repeated spouting) when viewed from the human skin to be stimulated, and the magnitude of the stimulation from the spouting water is repeated. This repeated spouting appears as a vibratory stimulus on the epidermis of the washed area. This is about 5H
If the repetition frequency is in the dead band frequency range equal to or more than z, the perception cannot follow the vibration based on this intentional repeated water discharge. For this reason, it becomes impossible to be conscious of the water discharge mode (wash water discharge form in a pulsating flow) of intentional repeated water discharge, and discomfort due to unnecessary vibration is reduced. As the repetition frequency of the repetitive water discharge increases, it becomes more difficult for the perception to follow the vibration based on the intentional repetition of the water discharge. Therefore, when the repetition frequency becomes a repetition frequency of about 10 Hz or more, the majority having the normal perception This person can hardly perceive the vibration based on intentional repeated water discharge. Therefore, it is difficult to recognize a water discharge mode (wash water discharge form in a pulsating flow) that water is intentionally repeated water discharge, and discomfort due to unnecessary vibration is further reduced. Further, at a repetition frequency of about 15 Hz or more, even the average part of the human epidermis exceeds the vibration recognition frequency, so that most people having ordinary perception do not feel discomfort. Furthermore, at a repetition frequency of about 20 Hz or more, even a sensitive part of the human epidermis exceeds the vibration recognition frequency, so that a large number of people with normal perception can surely feel continuous and good washing feeling. it can. Moreover, at repetition frequencies above about 30 Hz,
Even in sensitive areas where the nerves of the human epidermis are particularly concentrated,
Since the frequency exceeds the vibration recognition frequency, a soft wash feeling can be obtained by the majority of persons having a normal perception. Then, the repetition frequency is made to match the commercial frequency (50 Hz in the commercial frequency 50 Hz area, commercial frequency 60 Hz
(60 Hz in an area), which also has the effect of facilitating driving. As the frequency is increased in this manner, the washing can be performed while feeling the continuous washing feeling more reliably, and it is possible to sufficiently cope with a user who desires a softer washing feeling.

From these facts, in performing the intentional repetitive water discharge of the pulsating flow of the cleaning water discharge of the present embodiment,
As the repetition frequency increases, it becomes more difficult for the perception to follow the vibration based on intentional repeated water discharge. When the repetition frequency is about 10 Hz or more, most people who have normal perception hardly perceive the vibration based on intentional repeated water discharge. Therefore, it is difficult to recognize a water discharge mode (washing water of a pulsating flow) that the water is intentionally repeated water discharge. In this embodiment, the user who receives the collision of the water mass shown in FIG. Most people cannot perceive the impact of this body of water as intermittent, but can make it feel as if it is a continuous flow of wash water.

The following is a description with reference to the drawings. FIG. 24 is an explanatory diagram for explaining the reason why the cleaning intensity varies depending on the increase or decrease of the frequency. FIG. 24A is determined by this period because the pulsation period MT is large even with the same amount of cleaning water than FIG. 24B. This shows a state where the pulsation frequency fmt (= 1 / MT) is small. In FIGS. 24 (A) and 24 (B), the size can be as large or small as the above-mentioned body of water due to the length of the cycle. Therefore, in the case of FIG. 24A in which the pulsation cycle MT is large and the pulsation frequency is small, the mass of the water mass in one collision increases, the collision energy increases, and the stimulation to the human body is strong. That is, in the case of FIG.
The human body receives a large stimulus at once and feels a strong stimulus.
Further, as shown in FIG. 24A, when the pulsation frequency fmt falls below the above-mentioned dead band frequency or becomes a frequency close to this frequency, the human body repeatedly receives a strong stimulus while sensing it each time. feel.

On the other hand, as shown in FIG. 24B, if the pulsation frequency fmt is large and is within the above-mentioned dead band frequency, a small stimulus is received as a continuous stimulus as described above, so that the stimulus is not felt much. Absent. From this, even with the same amount of water, the frequency increases, and the larger the water mass, the stronger the stimulus (washing intensity) to the human body is felt. FIG. 25 is a graph showing the relationship between the pulsating frequency and the washing intensity of the pulsating flow and the discomfort due to the stimulation of the local human body. When the frequency exceeds 5 Hz, the human skin approaches a continuous flow and can be felt as soft washing, and when the frequency exceeds about 30 Hz, it is almost indistinguishable from the continuous flow. Therefore, the frequency of the pulsating flow is preferably 5 Hz or more.
Considering that the frequency of the commercial power supply is used as it is for the excitation control of 4c, if the upper limit is set to 50 to 60 Hz, the configuration for control can be simplified.

From the viewpoint of the dead band frequency, in the present embodiment, the excitation cycle of the pulsation generating coil 74c, that is, the pulsation cycle MT is determined by setting the pulsation frequency ftm (= 1 / MT) to about 5
The control is variably controlled so as to be in the range of Hz or more, and the stimulus to the local part of the human body due to the water mass is sensed as a continuous stimulus. In other words, despite the fact that the washing water volume is reduced only by intermittently ejecting the washing water mass to the washing location of the human body part at the pulsation cycle MT, the user is continuously provided with the washing spot. It is possible to give a feeling of washing as if the washing water is being spouted. Therefore, according to the present embodiment, even if the flow rate of the washing water is reduced to about 500 cc / min, which is about 1/2 to 1/3 of the conventional value, by the flow control switching valve 65, the washing ability and the feeling of washing are improved. Since the cleaning water can be increased, it is only necessary to discharge (supply) the cleaning water at the maximum flow rate. In other words, it is possible to give the user the feeling of receiving continuous water spouting while improving the effectiveness of water saving.

Even if the pulsation frequency ftm is set to the above-mentioned dead band frequency, it can be said that the sense of continuous spouting received from the continuous spouting of the washing water tends to be weaker as the pulsation frequency ftm is lower. Therefore, the pulsation frequency ftm can be intentionally lowered within the above range to give the user a slight intermittent feeling of washing (stimulation).

Further, pulsation frequency control and duty ratio control of coil excitation can be performed as follows. FIG.
FIG. 27 is an explanatory diagram illustrating a control example in which the pulsation frequency in the pulsating flow of the washing water is made different between the butt cleaning and the bidet cleaning. FIG. 27 is an explanatory diagram illustrating a control example of the pulsating frequency ftm and the duty ratio Dtm. is there.

As shown in FIG. 26, the pulsation periods MTA and MTV in the ass washing and in the soft and bidet washing are set to be large and small, and the respective pulsation frequencies ftm can be made different. In addition, the pulsation frequency ftmA at the time of ass washing was set lower than the pulsation frequency ftmV at the time of soft / bidder washing. In this case, both frequencies are within the above-mentioned dead band frequency range. For example, by changing the frequency such as 50 Hz for butt cleaning, 60 Hz for soft cleaning, and 70 Hz for bidet cleaning, as described below, bidet cleaning or the like can be a cleaning form with less water than butt cleaning. May be set to the frequency.

By the frequency control according to the object to be cleaned as shown in FIG. 26, as described with reference to FIG. 24, at the time of cleaning the buttocks, a water discharge form similar to that of FIG.
It becomes a washing that receives a sufficient stimulus continuously,
A hard washing feeling can be obtained. Also, soft
At the time of bidet cleaning, the water is discharged as shown in FIG. 24B, so that the cleaning is such that a relatively weak stimulus is continuously received, and a soft cleaning feeling can be obtained. In particular, in the soft bidet cleaning, the pulsation frequency ftm is increased to prevent an intermittent stimulus feeling, so that the soft cleaning feeling can be made more continuous. Moreover, in achieving such various washing feelings, the flow rate can be reduced as described above.

Further, as shown by a dotted line or a dashed line in the drawing, the pulsation frequency ftm is set to be the same for each cleaning, and the duty ratio Dtm can be changed and controlled for each cleaning. Since the duty ratio Dtm determines the coil exciting force, that is, the moving speed and the moving amount of the plunger 74b in the wave generating device 74, the amplitude of the pulsation can be controlled to increase or decrease. Therefore, the amount of cleaning water and the flow velocity shown in FIG. 16 can be controlled according to the duty ratio Dtm. As a result, it is possible to change and control the mass of the water mass shown in FIG.
While having a soft washing feeling, it is possible to adjust the intensity of the stimulating feeling and the washing power. In addition, the strength of the water can be adjusted based on the change in the flow velocity. In other words, since the user's desired washing feeling and water force can be secured by the duty ratio control and the frequency control of the pulsating flow, the amount of washing water can be significantly reduced as described above. In addition, both the duty ratio control and the frequency control are performed by the flow control switching valve 6.
Since it is unrelated to the flow rate adjustment by the flow control 5, the water pressure adjustment that cannot be adjusted by the flow rate adjustment by the flow control switching valve 65 can be realized through the above two controls. That is, the flow rate adjustment of the flow control switching valve 65 can be complemented by the duty ratio control and the frequency control. Then, the adjustment of the water force or the like through the flow rate adjustment by the flow control switching valve 65 and the adjustment of the water force or the like through the above-described two controls can be used to perform fine adjustment of the water force or the like.

As shown in FIG. 27, the pulsation frequency ftm can be controlled, or the pulsation frequency ftm and the duty ratio Dtm can be controlled simultaneously. That is, as shown in FIG. 27A, each cleaning period TA, TB, TC
In step (1), the duty ratio Dtm is set to a value DtmL, and the pulsation frequency ftm is controlled to increase or decrease in each cleaning period. For example, as shown, the pulsation frequency ftm is set to ftmS, ftmM, ftmL (ftmS <ftmM <
ftmL). Or 2
The increase / decrease control may be performed stepwise, four or more steps, or steplessly. In this way, it is possible to achieve a change in the cleaning sensation of the hardware and the software for each cleaning period and a change in the stimulus sensation, thereby making it possible to diversify the cleaning sensation. Further, if the frequency is different, since the continuous interval of the collision of the water mass is different, the strength of the water obtained by the collision of the water mass can be adjusted by the frequency control. In addition, since this frequency control is not related to the flow rate adjustment through the adjustment of the opening ratio of the flow adjustment switching valve 65, the flow adjustment switching valve 6
The water pressure adjustment that cannot be adjusted by the flow rate adjustment at 5 can be realized through frequency control. That is, the flow control of the flow control switching valve 65 can be complemented by the frequency control. And
Fine adjustment of the water force and the like can be performed by using both the adjustment of the water force and the like through the flow rate adjustment by the flow control switching valve 65 and the adjustment of the water force and the like through the frequency control.

In this case, each cleaning period may have the same time interval, or may have different time intervals for each cleaning period. In addition, when different time intervals are used, the time intervals may change regularly or irregularly. For example, the time intervals are tS, tM, tL (tS <tM
<TL), tS → tM → tL → tS → tM ·
・ ・ It may change regularly like tL → tS → t
It may change irregularly as S → tM → tL → tM. It should be noted that such an irregular time interval change can be achieved by loading a random number generation program and determining each time interval according to the generated random number.

As shown in FIG. 27B, the duty ratio Dtm is increased or decreased in each of the cleaning periods TA, TB, TC,. For example, as shown, the duty ratio Dtm is set to DtmS, Dtmm, DtM.
mL (DtmS <Dtmm <DtmL). Alternatively, increase / decrease control may be performed in two steps, four or more steps, or steplessly. In addition, the pulsation frequency f
tm is controlled to increase or decrease for each cleaning period as described above.
In this case, the feeling of cleaning can be further diversified. Even in this case, each cleaning period may be set to the same time interval, or may be changed regularly or irregularly.

Next, a cleaning operation performed by the local cleaning apparatus 10 of the present embodiment having the above-described configuration will be described. FIG.
FIG. 8 is a time chart showing the cleaning operation of the local cleaning device of this embodiment.

As shown in the figure, the local cleaning device is configured such that the user sits on the toilet seat 18 (see FIG. 1) and the seating sensor SS1.
When 0 (see FIG. 7) turns on, it receives this on signal,
First, the solenoid valve 55 of the water inlet side valve unit 50 (see FIG. 2)
Is controlled to open. As a result, the supply of the cleaning water into the apparatus is started. Therefore, the heater 61 is fully energized for preliminary heating of the cleaning water prior to the cleaning, and the supply destination of the cleaning water is changed by the flow control switching valve 65. Only the second washing water outlet pipe 56b is allowed to pass water. Therefore, the washing water supplied by opening the solenoid valve after the seating sensor is turned on is discharged to the above-mentioned discharge destination via the second washing water outlet pipe 56b.

In this way, the water supply and hot water supply made immediately after the seating is performed after a lapse of a predetermined time since the sensor is turned on, or when the water temperature sensor SS16b reaches a predetermined temperature (for example, a temperature lower by about 2 to 3 degrees than the hot water temperature at the time of local washing). Stopped when detected. In other words, the solenoid valve is closed, the energization of the heater is reduced (for example, about 30% of full energization), and the subsequent operation of the cleaning button is awaited. In this manner, the heater is fully energized for a short time after seating, and then the energization is reduced, so that the washing water is preliminarily heated and the temperature is maintained. Therefore, rapid energization control of the heater is not required during the subsequent local washing. Further, as described above, in the present embodiment, since the effect of reducing the flow rate of the cleaning water is high, it is possible to save power when energizing the heater.

Thereafter, when the washing button, for example, the buttocks washing button SWb is turned on, the solenoid valve 55 is controlled to open to supply washing water for the ass washing, and the heater 61 is fully energized. The heater 61 is continuously energized until the stop button SWa is operated. The closing of the solenoid valve will be described later.

By opening the solenoid valve 55, pre-nozzle cleaning for self-cleaning the nozzle head 25 is performed prior to local cleaning. That is, following the opening of the solenoid valve 55, the supply destination of the washing water at the washing nozzle 24 is switched to the buttocks by the passage switching valve 71, and then through the above-mentioned opening degree adjustment by the flow control switching valve 65. Set the flushing water flow rate. Thus, the adjusted flow rate of the washing water is supplied to the wave generation unit 70
Then, the water is sent to the washing nozzle 24 and discharged from the tail water discharge hole 31. At this time, the cleaning nozzle 24 is at the standby position,
Since the nozzle head 25 is covered by the chamber 41c (see FIG. 8) at the tip of the nozzle holding portion 41b, the nozzle head 25 is washed by the rebound water in the chamber 41c. By the water flow in the pre-nozzle cleaning, the cleaning water that has already been heated to an appropriate temperature by the full energization of the heater is distributed to the pipeline leading to the nozzle head 25.

For this reason, from the beginning of the main cleaning described later,
It is possible to discharge cleaning water at an appropriate temperature to a local area, and it does not give any discomfort due to discharging the low-temperature cleaning water. The flow control switching valve 6
First, the flow path switching of the flow path switching valve 71 downstream of 5 is performed,
After that, the flow rate is set through the opening ratio adjustment of the flow control switching valve 65. Therefore, since the flow path switching valve 71 can be driven in a state close to a no-load state where the water pressure of the washing water is hardly applied, it is preferable that the driving motor 71k is not overloaded. Note that even during the pre-nozzle cleaning, the nozzle head 25 can be self-cleaned with the pulsating cleaning water by driving the wave generation device 74. In this case, the pulsation frequency ftm of the coil may be inside the dead zone or outside the dead zone.

The pre-nozzle cleaning is stopped when a predetermined time has elapsed. That is, as shown in the drawing, first, the flow control switching valve 65 on the upstream side is made to flow only through the second cleaning water outlet pipe 56b so that the cleaning water does not flow to the cleaning nozzle 24 side. Thereafter, the flow path switching valve 71 is stopped, and the pre-nozzle cleaning is stopped. As described above, even when the pre-nozzle cleaning is stopped, the flow path switching valve 71 can be driven in a state close to a no-load state, so that the driving motor 71k is preferably not overloaded.

Subsequent to the pre-nozzle cleaning, the nozzle drive motor 42 of the nozzle device 40 is controlled to rotate in the normal direction, and the cleaning nozzle 24 is advanced from the standby position to the buttocks cleaning position.
Also during this nozzle advance, the solenoid valve is in the open state, and the flow control switching valve 65 allows only the second washing water outlet pipe 56b to flow, so that the washing water supplied at this time is the second washing water. The water is discharged to the above-mentioned discharge destination via the water outlet pipe 56b. In the operation up to the nozzle advance, only the switching destination of the flow path switching valve and the advance destination of the cleaning nozzle (the bidet cleaning position in the case of a bidet) differ according to the operated cleaning button. The same applies to the cleaning button.

When the advancement of the cleaning nozzle 24 to the cleaning position is completed in this way, the main cleaning of the local area (buttock cleaning, soft cleaning, bidet cleaning) is executed according to the operation button. As shown in the figure, in the butt washing, the following soft start is performed in order to start the pulsating flow of washing water spouting from the butt spout hole 31. First, the flow path switching valve 71 is switched to the bottom flow path, and then the flow rate at this time is gradually adjusted from zero to a flow rate corresponding to the set set power by the flow adjustment switching valve 65. In this case, the flow control by the flow control switching valve 65 is performed through the adjustment of the pipeline opening ratio as described above. It should be noted that the flow rate corresponding to the set water force may be gradually increased from a flow rate smaller than the flow rate corresponding to the set water force by a predetermined amount to the flow rate corresponding to the set water force.

In this soft start, the wave generator 7
4 also starts generating a pulsating flow. That is, the electronic control unit 80 outputs a pulse signal to repeatedly excite the pulsation generating coil 74c and reciprocate the plunger 74b. Thereby, a pulsating flow is generated as described above. In the case of bottom cleaning, coil excitation is repeated at a pulsation frequency ftm lower than that of bidet / soft cleaning as shown in FIG.
Even in this coil excitation, the duty ratio Dtm of the pulse signal is gradually increased so as to gradually approach the duty ratio corresponding to the set water force that has been set. By such a soft start, even when the set water force is large, the water discharge amount is small, and the water can be gradually discharged from the soft water discharge, which is a pulsating flow based on the small duty ratio Dtm, to the set water force. It is preferable because it does not cause discomfort or discomfort. When such a soft start is completed, the water discharge at the set water force is performed by the pulsating flow of the cleaning water, and the process proceeds to the main cleaning. In the main cleaning, if the water force is changed and set thereafter, the flow rate adjustment and the wave generation device 74 through the opening ratio adjustment in the flow control switching valve 65 are performed so that the water force is changed.
Flow control (duty ratio control, pulsation frequency control)
Is made.

In general, when adjusting the flow rate of a low flow rate of cleaning water, fine adjustment of the flow rate lacks the reliability of the adjustment accuracy. This is one of the reasons that the flow rate cannot be reduced with the conventional local cleaning device in which the water force is adjusted by the flow rate. However, in the local cleaning device of this embodiment, since the water pressure can be adjusted as described above through the pulsating flow control (duty ratio control, pulsating frequency control), it is possible to finely adjust the water pressure with a reduced flow rate of the cleaning water. There is. Therefore, the local cleaning device 10 of the present embodiment
In the case where the water pressure near the minimum water pressure is greatly changed from the water pressure close to the maximum water pressure, the flow rate adjustment and the pulsation adjustment are performed together, and in other cases, the water pressure is adjusted by the pulsation flow control I did it. That is, the degree of change in the water pressure is read from the operating state of a water pressure setting button (not shown), and pulsation flow control (duty ratio control, pulsation frequency control) is performed according to the result. Specifically, if the water force is set,
The duty ratio Dtm is increased, the pulsation frequency ftm is reduced, or both are used together. The low water setting is the opposite.

At this time, the actual flow rate of the washing water reaching the wave generator 74 is detected by a flow rate sensor (not shown), and pulsation flow control (duty ratio control, pulsation frequency control) is performed based on the detected flow rate and the set amount of water pressure change. Therefore, finer water pressure adjustment is possible. In this case, the pressure sensor may be used as a flow rate sensor, or the flow rate may be indirectly detected by a signal from a switch or the like involved in setting the flow rate. In addition to the configuration in which the flow rate sensor is arranged upstream of the wave generation device 74, the flow rate sensor may be arranged anywhere as long as it can detect the amount of washing water. Can be achieved.

The main cleaning is completed as follows by operating the stop button, and then the nozzle retreat and post-nozzle cleaning are performed. That is, when the stop button is operated, the button O
In response to the N signal, the flow control switching valve 65 is first connected to the second cleaning water outlet conduit 56b in order to stop the water discharge from the nozzle.
Then, the water supply of the flow path switching valve 71 is stopped, the output of the pulse signal of the coil excitation is stopped, and the energization of the heater is reduced. This heater power reduction is achieved by the seat sensor SS
Maintained until 10 turns off. Therefore, the temperature of the washing water does not drop carelessly until the seating sensor is turned off, and is kept at the above-mentioned temperature slightly lower than the appropriate temperature. Therefore, when the local washing is repeated while sitting on the toilet seat, the washing water can be quickly heated to an appropriate temperature, which is preferable. Also, at the time of stopping this ass washing and spouting,
Since the flow control switching valve and the flow path switching valve are driven in this order, and the flow path switching valve 71 can be driven in a state close to a no-load state, it is preferable that the driving motor 71k is not overloaded.
In the above-mentioned main washing (buttock washing main washing), the user separates from the toilet seat, the seating sensor SS10 is turned off before the stop button is operated, or each of the soft and bidet washing buttons is operated during the ass washing. The same process is terminated when a request is made.

When the flow path switching valve 71 is stopped, the nozzle drive motor 42 of the nozzle device 40 is controlled to rotate in the reverse direction, and the washing nozzle 24 is retracted and returned to the standby position. When the nozzle is retracted, the solenoid valve 65 is in an open state, and the supplied cleaning water during this time is discharged from the second cleaning water outlet pipe 56b as described above. Therefore, even when the nozzle is retracted, the second
The discharge destination can be washed with the washing water discharged from the washing water outlet pipe 56b.

When the cleaning nozzle 24 returns to the standby position,
In order to start post-nozzle cleaning, the flow path switching valve 71 is switched to the bottom flow path, and the flow rate at that time is set by the flow control switching valve 65 by adjusting the opening ratio. As a result, the adjusted flow rate of washing water is sent to the washing nozzle 24 at the standby position and is ejected from the tail water outlet 31, so that the nozzle head 25 is repelled by the chamber 41 c in the same manner as in the pre-nozzle washing. Is washed. During this time as well, the discharge destination is cleaned by the cleaning water discharged from the second cleaning water outlet pipe 56b. Even in the post-nozzle cleaning, the flow control switching valve and the flow path switching valve are driven in this order, and the flow path switching valve 71 can be driven in a state close to a no-load state.
This is preferable without overloading 1k.

When the post-nozzle cleaning is performed for a predetermined time,
In order to prepare for the next and subsequent local cleaning, the electromagnetic valve 55 is controlled to close, and the supply of the cleaning water to the local cleaning device 10 is stopped.
Thereafter, the cleaning water remaining in the water supply pipe downstream of the flow control switching valve 65, the flow path switching valve 71, and the cleaning nozzle 24 is discharged. That is, in response to the closing of the electromagnetic valve 55, the pulsation generating coil 74c of the wave generating device 74 is repeatedly excited with a small duty ratio Dtm, and the plunger 74b is reciprocated. In this case, the pulsation frequency ftm may be a low frequency. As described above, when the plunger 74b is reciprocating,
Although the washing water is not supplied to the wave generating device 74, the reciprocating movement of the plunger 74b sucks the washing water into the cylinder 74a on the upstream side and sends out the sucked washing water. Therefore, the washing water remaining in the above-mentioned water supply conduit or the like is gradually sent downstream by the washing water sent out by the plunger 74b, and the switching flow path of the flow path switching valve 71 (in this case, the butt flow path). Is discharged to the toilet bowl from the bottom water discharge hole 31 of the nozzle at the standby position. When the discharge of the remaining washing water is completed in this manner, a series of tail cleaning operations is terminated by stopping the flow control switching valve 65 and the flow path switching valve 71 from water. In the operation after the nozzle retreat, the switching destination of the flow path switching valve 71 according to the operated washing button,
The destination of the cleaning nozzle 24 (the bidet cleaning position if a bidet)
However, the same applies to a soft cleaning button and a bidet cleaning button.

In the present embodiment, the discharge of the remaining washing water using the wave generator 74 is completed as follows.

The pulsation generating coil 74c of the wave generating device 74
Is energized to move the plunger 74b, a back electromotive force is generated in the coil with the movement of the plunger 74b, and a so-called bottom phenomenon occurs in which the energizing current temporarily decreases. Since this bottom phenomenon appears as a waveform of the current flowing through the coil, there is a correlation between the current waveform and the movement of the plunger 74b. By the way, considering the situation in which the pulsation generating coil 74c is excited at the time of discharging the residual cleaning water, before and after the residual cleaning water is completely discharged, the cleaning water is present in the cylinder 74a of the plunger 74b. Plunger movement and plunger movement in an empty condition without washing water occur. Since the cleaning water in the cylinder 74a acts as a movement resistance of the plunger 74b, if the coil excitation is performed under the same condition (in this embodiment, the same duty ratio Dtm), the cleaning water before the cleaning water in the empty state where the cleaning water does not exist. The plunger 74b moves faster. Therefore, when the plunger moves under the condition where the cleaning water is present in the cylinder 74a to the plunger movement under the condition where the cleaning water is empty, that is, when the remaining cleaning water is completely discharged, the bottom phenomenon occurs. Changes. Therefore, in the local cleaning device 10 of the present embodiment, the bottom phenomenon is detected by the bottom detection circuit 81 (see FIG. 7) to detect the completion of the discharge of the remaining cleaning water, and the stop of the flow path switching valve 71 is stopped as described above. A series of ass washing operations was completed after passing water.

FIG. 29 is a circuit diagram showing an example of the bottom detection circuit 81 for the pulsation generating coil 74c, and FIG.
It is an explanatory view for explaining a situation of a current waveform at the time of energization excitation of the pulsation generating coil 74c.

As shown in FIG. 29, the bottom detecting circuit 81
Has a comparator 82, a capacitor 83, and a resistor 84, and the resistor 84 and the capacitor 83 constitute a delay circuit composed of a CR filter circuit. The CR filter circuit delays the input signal by a delay determined by the resistor 84 and the capacitor 83 and outputs the delayed signal. Therefore, the bottom detection circuit 81 compares the input signal (the voltage generated in the detection resistor 85 reflecting the supplied current) input to the negative terminal and the delayed signal obtained by delaying the input signal with the comparator 8.
2 is processed. As a result, a pulse signal (bottom detection signal) indicating the completion of the movement of the plunger 74b is output from the bottom detection circuit 81 to the electronic control unit 80 as follows.

After the completion of the post-nozzle cleaning, the pulsation generating coil 7
A pulse signal having a predetermined period (constant duty ratio Dtm) is output to the switching transistor 86 shown in FIG.
Focusing on a certain pulse, the current flowing through the pulsation generating coil 74c increases with time. When a predetermined time has elapsed from the start of energization by the pulse, the plunger 74
b starts to move, and a back electromotive force is generated in the pulsation generating coil 74c with the movement of the plunger 74b, so that a bottom phenomenon occurs in which the energizing current temporarily decreases as shown by the solid line in FIG. This current waveform (original signal waveform) is input to the minus terminal of the comparator 82 as a voltage.
On the other hand, a delay signal as indicated by a dotted line in the figure is generated by a CR filter circuit and input to the positive terminal. Therefore, these signals are calculated by the comparator 82 in consideration of the polarity of the input terminal, and thus a pulse-like signal is generated as shown in the figure.

This pulse signal (bottom detection signal)
Is generated corresponding to each pulse output to the switching transistor 86 and is input to the electronic control unit 80 at the predetermined cycle. However, as described above, when the remaining washing water is completely discharged, the plunger 74b
, The bottom detection signal at this time is input at a different cycle from that before. Therefore, from the state of the signal input, the electronic control unit 80 determines completion of the residual water discharge, stops the pulse output thereafter, and terminates a series of the butt cleaning operation. In addition, in addition to completing the residual water discharge based on the bottom detection result,
The pulse output may be stopped when a predetermined time has elapsed from the coil excitation for discharging the residual water, and the coil excitation may be stopped to terminate the cleaning operation.

In the local cleaning apparatus 10 of this embodiment, move cleaning can be performed as follows. For example, the pulsation frequency ftm or the duty ratio Dtm is changed and controlled in accordance with the nozzle position while the cleaning nozzle 24 is reciprocated back and forth about the center position. At this time, the pulsation frequency ftm can be increased near the center position to increase the softness and continuity, and the pulsation frequency ftm can be reduced near the forward end and the backward end to emphasize the hard feeling. Further, if the duty ratio Dtm is also reduced around the center position, a soft feeling can be emphasized. Conversely, in the vicinity of the center position, the pulsation frequency ftm can be lowered to increase the sense of hardness and stimulation, and in the vicinity of the forward end and the backward end, the pulsation frequency ftm can be increased to emphasize the softness.

In the local cleaning device of this embodiment, massage cleaning can be performed as follows. Massage cleaning period is the same time interval cleaning period TA, TB, TC
This time interval is used as a massage cycle (Dtm is fixed, for example, Dtm == DtmL) as shown in FIG.
As shown in FIG. 7A, the pulsation frequency ftm is regularly controlled to increase or decrease in this massage cycle. For example, the pulsation frequency ftm is changed to ftmS → ftmm → ftml → ftmm → f
tmS... (ftmS <ftmM <ftmL) is changed regularly for each massage cycle. Also, f
tmS → ftmm → ftml → ftmS → ftmm ...
・ You can also do Alternatively, in addition to the regular increase / decrease control of the pulsation frequency ftm, FIG.
As shown in the figure, the cleaning periods TA, TB, T
Duty ratio Dt for each massage cycle of C ...
m is variably controlled regularly. For example, the duty ratio Dt
m is DtmL → Dtmm → DtmS → Dtmm → Dtm
L... (DtmS <Dtmm <DtmL). DtmS → D
tmm → DtmL → DtmS → Dtmm...

The massage cycle is such that the frequency determined by its reciprocal is outside the dead band frequency range described above (less than about 5 Hz).
It is to be. As a result, as described above, the transition of the washing feeling and the stimulating feeling accompanying the duty ratio Dtm and the pulsation frequency ftm is clearly sensed by the user. Therefore,
The washing feeling and the stimulating feeling received from the water spout can be regularly and repeatedly given to the user, and the regular repeating can also take various forms. Further, when the stimulus is increased by increasing the duty ratio Dtm, if the pulsation frequency ftm is reduced, the sense of continuity of the stimulus is reduced, so that a strong stimulus can be emphasized. Therefore, it is possible to amplify the intensity of the stimulus and promote defecation.

In the above-mentioned massage washing,
The cleaning periods TA, TB, TC,... Are different from each other. By doing so, the duty ratio Dtm in each cleaning period or the stimulus recognition time associated with the pulsation frequency ftm is changed, so that the way of receiving a stimulus diversifies,
The feeling of defecation can be more effectively promoted. In addition, by synchronizing with the five senses such as music, light, and odor (aromatherapy), a relaxing space can be provided, and further a feeling of defecation can be further promoted.

In the local cleaning apparatus 10 of the present embodiment, the fluctuation cleaning that gives a sense of comfort and comfort by irregularly changing the cleaning feeling and the stimulating feeling received from the water discharge can be performed as follows. The fluctuation cleaning period is the repetition of the cleaning periods TA, TB, TC,... At the same time interval, and this time interval is a fluctuation period, and the duty ratio Dtm and the pulsation frequency ftm or both are irregularly increased and decreased in the fluctuation period. Control. For example, when the duty ratio Dtm and the pulsation frequency ftm are irregularly changed, a random number generation program is loaded to generate a random number, and the duty ratio Dtm and the pulsation frequency ftm are determined by the obtained random numbers.
By doing so, the duty ratio Dtm becomes DtmS →
Dtmm → DtmS → DtmS → DtmL → DtmS ・
.., The pulsation frequency ftm is ftmm → ftm
It changes at a constant fluctuation cycle as S → ftmM → DtmL → DtmS → DtmL. Alternatively, the two change independently.

As described above, with the transition of the duty ratio Dtm or the pulsation frequency ftm, the washing feeling and the stimulating feeling received from the water discharge change irregularly. In this case, with respect to the above-mentioned fluctuation cycle in which the washing feeling and the stimulating feeling change according to the duty ratio Dtm or the pulsation frequency ftm, the frequency f determined by the reciprocal of the fluctuation cycle is the massage cycle TM.
And the same frequency (less than about 5 Hz). As a result, the duty ratio D
The change in the feeling of washing and irritation accompanying the tm and the pulsation frequency ftm is clearly sensed by the user. The changing feeling of washing and irritation is different for each fluctuation cycle, and the changing of the feeling of washing and irritation is also irregular. Will receive it. This has the following advantages due to the difficulty in predicting the stimulus change transition.

The internal anal sphincter that opens and closes the anus for defecation is an involuntary muscle of the autonomic nervous system, which contracts and relaxes unconsciously. In the above-described massage cleaning, the cycle that affects the sense of irritation changes regularly. Therefore, if the massage cleaning is continued for a long period of time, the timing of the cycle change may be predicted by the brain. For this reason, the change in the stimulus change accompanying the cycle change is also predicted, and the sympathetic nerve is dominant, which may cause the contraction of the internal anal sphincter. On the other hand, in the fluctuation cleaning in which the cycle changes irregularly, the timing of the cycle change is difficult to predict, so that the stimulus change transition accompanying the cycle change is not predicted. For this reason, the parasympathetic nervous system is predominant, and the internal anal sphincter is easily unconsciously relaxed. As a result, according to the above-mentioned fluctuation cleaning, defecation can be promoted more effectively.

When this fluctuation cleaning is performed for local cleaning after defecation, the duty ratio Dtm and pulsation frequency ft
Because it is difficult to predict the intensity stimulus with the change of m,
The monotonous feeling at the time of local washing can be further eliminated.

In the above-described fluctuation cleaning, the cleaning periods TA, TB, TC,... Are different from each other. In this case, since the stimulus recognition time associated with the duty ratio Dtm or the pulsation frequency ftm in each cleaning period is changed, it becomes more difficult to predict the stimulus sensation.
Therefore, defecation can be promoted more effectively. Also,
By synchronizing with the five senses such as music, light, and odor (aromatherapy), a relaxing space can be provided, and the defecation can be further promoted.

The power spectrum of the physical quantity such as the fluctuation width or the instantaneous flow rate that determines the transition width of the duty ratio Dtm and the pulsation frequency ftm, and the transition timing thereof, is determined by the biological rhythm of the human body such as the heart rate and the natural world. Similarly to the rhythm of the above, it can be made to be proportional to the reciprocal of the frequency. This makes it possible to give the user a feeling of relaxation, so that the parasympathetic nerve becomes dominant, the internal anal sphincter is relaxed, and the effect of promoting defecation is enhanced.

The above-described local cleaning apparatus 10 of this embodiment has the following advantages in addition to the above. First,
The accumulator 7 provided upstream of the wave generation device 74
3 has the following advantages. FIG. 31 is an explanatory diagram for describing an effect obtained by the accumulator 73.

The water generating device 74 is driven to discharge the above-mentioned pulsating flow of washing water, and the pressure (primary pressure) of the upstream water supply pipe 51 (see FIG. 2) and the downstream side of the wave generating device 74 are discharged. The pressure (secondary pressure) of the downstream water supply pipe 72 was measured. Then, the primary pressure in a state where the accumulator 73 is not provided upstream of the wave generation device 74 is supplied to the flow control switching valve 6.
5 downstream. In addition, the accumulator 73 is shown in FIG.
The primary pressure was measured downstream of the flow control switching valve 65, that is, upstream of the accumulator, as shown in FIG. The result is shown in FIG.

When the accumulator 73 is installed upstream of the wave generator 74 of this embodiment, the accumulator 73
Water hammer reduction, which is the original function of
1 has the following advantages in addition to the advantages described above.
That is, as shown in FIG. 31, when the pulsation flow is generated by the wave generation device 74, the pressure fluctuation of the primary pressure in the upstream water supply pipe 51 can be effectively suppressed. Therefore, it is possible to avoid the disturbance of the washing water temperature distribution of the tank 62 by suppressing the water hammer as described above, and to avoid the disturbance of the washing water temperature distribution of the tank 62 by suppressing the primary pressure fluctuation. Therefore, in the tank 62, the heater 61 can be used to warm the water in a state where there is no disturbance in the temperature distribution, so that the heater control can be simplified and the temperature of the cleaning water can be made uniform with good responsiveness. Moreover, the pulsating flow generated by the wave generating device 74 is in a state where the primary pressure is accumulated by the accumulator 73 and amplified on the secondary side, so that the wave generating device 74 can be reduced in capacity and downsized. . In addition, since the pressure amplification by the accumulator 73 is obtained, the energy required for the pressure fluctuation generation (pulsation generation) in the wave generation device 74 is reduced, and power saving can be achieved. Although the accumulator 73 is arranged close to or integrated with the wave generating device 74, the flow control switching valve 6
5 or can be arranged integrally with the device.

Further, in the local cleaning apparatus 10 of this embodiment, when the cleaning water is discharged by periodically changing the flow of the cleaning water, the wave generating device 74 utilizing the reciprocating motion of the plunger 74b is used. The pulsating flow generated by the wave generating device 74 is prevented from appearing at a zero flow state.
Therefore, a situation in which the flow of the washing water in the pipeline is not interrupted does not occur, so that no water hammer is generated. Therefore, it is not necessary to make the waterway system components including the wave generation device 74 have high water hammer resistance, and the configuration and structure can be simplified, the size can be reduced, and the resin can be formed.

Further, in the wave generating device 74, when the pulsation is generated by the reciprocating movement of the plunger 74b, the condition of zero flow rate is not developed as described above, so that the water stopping structure such as the check valve 74f is provided on the washing water discharge side. Do not need. For this reason, the structure and structure can be further simplified and downsized. Since the miniaturization can be achieved in this way, the degree of freedom of the installation location of the wave generating device 74 is increased, and the attachment and integration with other members having a large mass are simplified.

Further, since the flushing water having a zero flow rate does not occur when the pulsating flushing water is discharged, the following advantages are provided. The pulsation frequency is within the dead band frequency range (about 5 Hz or more)
Even so, it can be said that the continuity of the stimulation of the user receiving the water discharge tends to fade as the pulsation frequency approaches the lower limit of the dead band frequency region. However, as described above, since the flush water discharge state with the zero flow rate does not occur, the sense of continuity of the stimulus can be hardly faded. Therefore, in the flush water spouting of the pulsating flow by the wave generation device 74, the pulsation frequency adjustment range can be extended to near the lower limit of the dead zone, and the pulsation frequency adjustment over a wide range allows for a diversification of the feeling of washing and water force. Can be.

Further, in the local cleaning device 10 of this embodiment, at the end of the cleaning operation in the buttocks cleaning, the soft cleaning, and the bidet cleaning, the wave generating device 74 is driven to reciprocate the plunger 74b as described above. The remaining washing water was forcibly discharged. Therefore, the drainage of the pipe from the flow control switching valve 65 to the nozzle head 25 of the washing nozzle 24 is completely performed. Therefore, freezing of the remaining water can be reliably avoided. When driving the wave generation device 74 for draining such water, the duty ratio Dt of the pulsation generation coil 74c
m, and the pulsation frequency ftm was set to a low frequency.
The plunger 74b is moved only at a constant speed and with a small force, and the plunger 74b does not collide with the end of the cylinder 74a with a high speed and a strong force. Therefore, the striking sound of the plunger 74b can be reduced. Further, as described above, the flow path switching valve 7
By opening all the communication holes of each nozzle flow path at the time of draining water, water can be drained from all flow paths in the cleaning nozzle 24.

In addition, in the local cleaning device 10 of this embodiment, as described above, the user is provided with the feeling of receiving continuous water discharge while reducing the amount of clean water (water discharge amount). Increased water saving effectiveness. Therefore, power consumption for heating the cleaning water to the desired temperature by the heater 61 can be reduced. That is, the limit capacity of the outlet in the toilet room is generally 15A. However, in the existing local cleaning device used in the conventional toilet, the hot water heater capacity of the instantaneous heat exchanger is set to about 2500 watts in order to enable a sufficient temperature and a sufficient time of water discharge even in a cold season. are doing. In order to reduce the heater capacity, it has been practiced to forcibly mix air into the cleaning water to reduce the amount of cleaning water.
A heater capacity of 0 watts or more was required. For this reason,
If a local cleaning device having such a heater capacity is plugged into an outlet in a toilet room, the limit capacity of the outlet is approached, so that there is a problem that other electrical devices cannot be connected. In addition, when the hot air drying function and the indoor heating function provided in the local cleaning device are simultaneously operated, the overall heater capacity increases. Therefore, when these functions are simultaneously operated, there is also a problem that a measure such as stopping the energization of any heater has to be taken. In addition, although it is necessary to install a plurality of local cleaning devices in hotels and facilities, there is a problem that they cannot be installed due to the upper limit of power consumption. However, according to the local cleaning apparatus 10 of this embodiment, the pulsation is generated by the wave generation device 74, and the control of the pulsation frequency ftm and the duty ratio Dtm of the pulsation significantly reduces the amount of cleaning water and the power consumption. Thus, the problem of the power supply as described above can be solved.

In the local cleaning apparatus 10 of the above embodiment,
The flow rate of the washing water reaching the wave generator 74 is detected by a flow rate sensor (not shown). Therefore, as described above, the water pressure can be finely adjusted by pulsating flow control (duty ratio control, pulsating frequency control) using the flow rate detected by this sensor, and the following advantages are provided. That is, the electronic control unit 80
When an excessive flow rate occurs due to a failure of the solenoid valve 55 or when an abnormality such as water cutoff occurs, the detection signal from the flow rate sensor is received, the drive of the wave generation device 74 is stopped,
Operations such as stopping power supply to 1 and returning the cleaning nozzle 24 to the standby position are performed. In this way, it is possible to avoid the occurrence of a tapping sound due to the idling of the plunger 74b, the idling of the heater 61, and the like.

Next, a modification of the above-described local cleaning device 10 will be described. In the following description, the same members and the same reference numerals will be used for the same members as those in the above-described embodiment or the modified examples, and the same member names will be used for members performing the same function.

In the pulsating flow of flush water described above, the flow rate can be variably controlled while keeping the flow rate constant. FIG. 32 shows an example in which the flow velocity vm is decelerated (vm2 → vm3) while the flow rate is kept constant in the pulsating water discharge. In the figure, t2, t3
(> T2) represents an energization time for exciting the coil of the wave generation device, T2 represents a pulsation generation period of pulsation generated by the wave generation device, and V represents a pulsation generation coil 74 of the pulsation generator.
It represents the voltage applied to the switching transformer for turning ON / OFF the current supply to the switch c, in other words, the coil excitation voltage. In the figure, (a) shows the state of the duty ratio of the pulse signal, (b) shows the relationship between the voltage V and time, and (c)
Represents the relationship between the flow velocity vm and the time of the flush water discharged. With reference to FIG. 32, a description will be given of a control for increasing the flow velocity while keeping the flow rate constant in the pulsating water discharge.

When the pulsation generator comprises a pulsation generating coil 74c and a plunger 74b driven by this coil,
The flow rate is defined according to the stroke length of the driven plunger 74b, and the flow velocity is defined according to the driving speed of the plunger 74b, that is, the suction force of the plunger 74b. First, assuming that the speed should be reduced, the voltage V applied to the pulsation generating coil 74c (that is, the current flowing to the pulsation generating coil 74c)
(V3 → V2; see (b)). As a result, the suction force of the plunger 74b decreases, and the flow velocity decreases. At this time, if the duty ratio is the same before and after the voltage change, the stroke length of the plunger 74b is shortened by the reduction in the driving speed of the plunger 74b, and the flow rate is reduced. Therefore, when it is sufficient to reduce the flow rate even if the flow rate is reduced, it is only necessary to reduce the voltage at a constant duty ratio as described above. The reverse is true for increasing the flow velocity.

On the other hand, to accelerate or decelerate only the flow velocity without changing the flow rate, the following control is performed. In the case of the deceleration control, the duty ratio is increased (t2 / T2 → t) in order to shorten the stroke length, that is, compensate for the insufficient flow rate.
3 / T2; (a)). When the duty ratio is increased in this manner, the coil excitation period becomes longer, so that the plunger 74b can be driven by a regular stroke, and the stroke length of the plunger 74b can be kept constant. Therefore, only the flow velocity can be reduced while keeping the flow rate constant.
This phenomenon can also be explained by the fact that the area S2 during one cycle is equal in the left and right graphs (c) showing the relationship between the flow velocity and time. In the case of speed-up control, the reverse is true. Of course, in addition to this, when the pulsation is always generated at the stroke limit of the plunger 74b, the flow rate does not change because the drive stroke length does not change, and the pulsation generating coil 7 does not change.
4c only by controlling the applied voltage or current
Control with constant flow rate and variable flow rate becomes possible.

Next, the local cleaning device 10 according to the above-described embodiment will be described.
Another modified example will be described.

FIG. 33 is a block diagram showing the configuration of a water channel system included in the local cleaning device 100 of the modified example, FIG. 34 is a block diagram showing the configuration of a water channel system included in the local cleaning device 110 of another modified example, and FIG. It is a schematic block diagram which shows the schematic structure of the flow control switching valve 75 of these modifications in a partially broken manner. FIG.
FIG. 13 is a block diagram illustrating a water channel configuration of a local cleaning apparatus 120 according to another modification. FIG. 37 is a cross-sectional view showing a configuration of a flow control switching valve 77 disposed in this waterway system, and FIG.
FIG. 8 is an explanatory diagram for explaining the water pressure in the water channel system of the local cleaning device according to the modified example having the intermittent valve. FIG. 39 is a block diagram illustrating a water channel configuration of a local cleaning device according to another modification. It is.

(1) As shown in FIG. 33, in the local cleaning apparatus 100 of this modification, a wave generating unit 70 having an accumulator 73 and a wave generating device 74 is provided downstream of the heat exchange unit 60. Wave generation unit 7
A flow control switching valve 75 is provided downstream of the zero. This flow control switching valve 7
Numeral 5 is formed separately from the washing nozzle 24, and the above-mentioned respective nozzle passages (each nozzle passage for ass washing, soft washing and bidet washing) of the washing nozzle 24 and the second washing water outlet conduit The supply destination of the washing water is switched to any one of 56b, and the flow rate of the washing water flowing through each of the switched nozzle flow paths is adjusted through the opening ratio adjustment with the second washing water outlet pipe. Therefore,
With this flow control switching valve 75, it is possible to switch the water supply of each nozzle flow path in the cleaning nozzle 24 and to adjust the flow rate of the cleaning water to each flow path. Therefore, in the above embodiment, the flow control switching valve 65 for adjusting the flow rate to the cleaning nozzle 24 and the flow path switching valve 71 for switching each nozzle flow path of the cleaning nozzle 24.
However, in this modification, only one flow control switching valve 75 is required. Therefore, there are advantages in manufacturing, such as reduction in the number of assembly steps and cost due to the reduction in the number of parts.
Note that the combined use of the washing water from the second washing water outlet pipe 56 can enhance the effectiveness of the flow rate at the flow control switching valve 75 in the same manner as in the above-described embodiment. In the local cleaning device 100, the flow path downstream of the wave generation unit 70, that is, the flow path from the wave generation unit 70 to the flow control switching valve 75 and the flow path from the flow control switching valve 75 to the cleaning nozzle 24. The downstream water supply pipe 72 was a flexible pipe having a higher hardness than the upstream water supply pipe 51 upstream of the wave generation unit 70. Therefore, even if the flow control switching valve 75 is separated from the washing nozzle 24, expansion and contraction, expansion and contraction of the water supply pipe itself can be made less likely to occur, and the influence of pulsation damping due to this expansion and contraction can be suppressed. Therefore, even in this modified example, the pulsation damping in the flow path is reduced, and the pulsating flow of washing water is
Can be sent to

(2) The local cleaning device 110 of another modification shown in FIG. 34 has separate cleaning nozzles for the buttocks and bidet, and each nozzle is connected to the flow control switching valve 75 of the above modification. Let me. The flow control switching valve 75 is connected to the buttocks washing nozzle 114 and the bidet washing nozzle 116,
The water supply destination of the washing water is switched to one of the nozzle flow path (the tail cleaning nozzle flow path and the bidet cleaning nozzle flow path) for each of the cleaning nozzles and the second cleaning water outlet pipe 56b. The flow rate of the washing water flowing through the nozzle flow path is adjusted through the above-described opening ratio adjustment.

Cleaning nozzles 114 and 11 for buttocks and bidets
6 is mounted on the nozzle device 112. The nozzle device 112 is configured to separately advance and retreat the cleaning nozzles from the standby position to the respective cleaning positions, and is driven and controlled by the electronic control device 80. Thus, the local cleaning device 11 having separate cleaning nozzles for the buttocks and the bidet
Even if it is 0, as described above, it is possible to set various washing feelings and water forces through the control of the pulsation frequency ftm and the duty ratio Dtm while enhancing the effectiveness of water saving. Also,
Similarly to the above-described local cleaning device 100, the downstream water supply pipe 72 downstream of the wave generation unit 70 is a flexible pipe having a higher hardness than the upstream water supply pipe 51, so that the separate pipes for the buttocks and the bidet are separately provided. In the local cleaning apparatus 110 having the above-described cleaning nozzle, the pulsation attenuation in the flow path can be reduced, and the pulsating flow of the cleaning water can be sent to each of the buttocks and bidet cleaning nozzles. Furthermore, the effectiveness of the flow rate at the flow control switching valve 75 can be increased by using the washing water from the second washing water outlet pipe 56 in combination.

The flow control switching valve 75 of these modifications can be, for example, a drum type flow control switching valve as shown in FIG. In the flow control switching valve 75, the drum casing 7
A drum 75b is rotatably (forward / reverse) inside 5a. A water supply groove 75c is formed on the surface of the drum for each water supply port corresponding to each nozzle flow path of the bottom, the softness, and the bidet. Further, each of the water supply ports shown in the drawing is installed in parallel so as to form a pair with a water supply port (not shown) leading to the second washing water outlet pipe 56, and each of the water supply ports and the water supply groove 75c for each water supply port pair is provided. The degree of overlap is changed. Thus, the flow control switching valve 75 adjusts the degree of overlap between each water supply groove of the drum and each water supply port of the water supply port pair, thereby switching the water supply destination and adjusting the water supply flow rate to the switched water supply destination. . According to the drum type flow control switching valve 75, pulsation damping can be more effectively suppressed as compared with a switching valve using the elasticity of an elastic body such as a diaphragm.

In the apparatus provided with the buttocks cleaning nozzle 114 and the bidet cleaning nozzle 116, either the buttocks or bidet cleaning nozzle is used to form a soft water discharge hole and a nozzle flow path therefor. Can be what you have. Further, a cleaning nozzle for soft cleaning may be provided separately from the above-mentioned two cleaning nozzles.

(3) The local cleaning device 120 of the modification shown in FIG. 36 is characterized in that the cleaning water is discharged in an intermittent flow. In other words, the method is characterized in that the flow of the washing water is intermittently reduced to zero instantaneously by pressurizing the supplied washing water and interrupting the washing water flow downstream thereof. That is, the local cleaning device 120 according to this modification includes a pressurizing device 122, a flow control switching valve 124, and an intermittent flow generating unit 126 on the downstream side of the heat exchange unit 60 in the channel system. Cleaning water is discharged from the cleaning nozzle 24 via 71.

The pressurizing device 122 is provided with a pressurizing pump such as a line pump, and pressurizes the washing water supplied from the heat exchange unit 60 and supplies it to the downstream device. Then, the pressurizer 122, the pump displacement to increase to about 0.2 MPa {about 2 kgf / cm ^2} a primary pressure of about 0.13MPa pressure regulated by the pressure regulating valve 54 {1.3kgf / cm ^2} Have. It should be noted that the pressure regulated by the pressure regulating valve 54 (about 0.13 MPa {1.3 kgf / cm ² })
It is almost the same as the conventional product.

The intermittent flow generating unit 126 is connected to the accumulator 73 from the upstream side and the intermittent valve 12 for intermittently connecting the flow path.
8 is provided. As shown in FIG. 37, the intermittent valve 128
The motor 128a connects the valve body 128b to the housing 12
8c. Then, the intermittent valve 128
Connects the internal valve body flow path 128d with the valve flow path 128e in synchronization with the rotation cycle of the motor 128a to interrupt the flow path. Accordingly, the intermittent valve 128 outputs the intermittent flow of the cleaning water flow pressurized by the pressurizing device 122 (intermittent flow).
Then, the intermittent washing water is supplied to the washing nozzle 24. The state of generation of this intermittent flow will be described with reference to the drawings as follows.

As shown in FIG. 38, the water supply pressure from the water supply source
Is Pw, the washing water is supplied by the pressure regulating valve 54 to about 0.1
3MPa ｛1.3kgf / cm^TwoThe pressure is reduced to｝
To the pressurizing device 122, and the pressurizing device 122
2MPa about 2kgf / cm ^TwoIt is boosted to｝. Soshi
This washing water is periodically washed by the intermittent valve 128.
The flow is intermittent due to the intermittent flow, and is discharged from the cleaning nozzle 24.
Be watered. The intermittent cycle DT of the intermittent flow at this time is the
28 times the motor rotation period of 28
Variable through rotation control of motor 128a by device 80
It can be controlled. In this modification, the intermittent cycle D
The dead band defined by the frequency specified by T (intermittent frequency)
Frequency range (5 Hz or more, preferably 10 to 100 H
z). Therefore, the flow path is interrupted.
Of the intermittent washing water obtained from the washing nozzle 24
In this modification, cleaning is performed in the same manner as in the above-described embodiment.
By controlling the frequency of spout water, the amount of flush water is constant.
Also, it is possible to diversify the washing feeling and adjust the water level. Ma
Also, the washing water flow rate can be changed by adjusting the amount of washing water.
Diversification of washing feeling
Water pressure adjustment can be performed. Also, by frequency control
As mentioned above, since the water pressure can be adjusted,
In case of water shortage, keep the water level desired by the user
Can be In other words, the cleaning feeling desired by the user
And water force can be secured by intermittent flow frequency control.
As described above, the amount of washing water can be significantly reduced.
You.

According to this modification, there are the following advantages. As shown in FIG. 37, the intermittent valve 128 is connected to the valve body flow path 12.
The 8d opening has a slope 128f. This inclined part 1
28f functions to gradually close the valve flow path 128e when the valve body 128b rotates the valve flow path 128e to the shielding side. Therefore, at the time of driving the intermittent valve for generating the intermittent flow, it is possible to suppress the occurrence of water hammer when the flow path is cut off due to the valve driving.

In this modification, as shown in FIG. 38, the pressure (approximately 0.2
a (approximately 2 kgf / cm ² ｝) as the maximum pressure.
An intermittent flow in which the pressure drops from this maximum pressure due to the intermittent flow at 28. Therefore, if the boost pressure by the pressurizing device 122 is shifted up and down, this intermittent flow can be shifted up and down similarly to the case of the pulsating flow described above (see FIG. 5), and the flow rate can be adjusted.

(4) In the local cleaning apparatus 130 of another modified example shown in FIG. 39, the cleaning water is pressurized by the pressurizing device 122 and the intermittent flow generating unit 126 to make the intermittent cleaning water. Cleaning nozzles 114 and 116 for the buttocks and bidet
Is advanced and retracted by the nozzle device 112, and the flow control switching valve 75 switches the flow path to the nozzle and adjusts the flow rate through the above-described opening ratio adjustment. After the flow rate is adjusted, the above-mentioned intermittent washing water is discharged from each of the ass and bidet washing nozzles. Thus, separate washing nozzles 1 for buttocks and bidets
It is also possible to configure the apparatus having the nozzles 14 and 116 to discharge intermittently flowing washing water.

In order to improve the soft feeling in each local cleaning, the cleaning water may be modified so that air is forcibly mixed into the cleaning water. FIG. 40 is an explanatory diagram illustrating the configuration of a cleaning nozzle 140 according to a modification in which air is forcibly mixed.
5 is a graph showing a relationship between an air mixing amount when air is forcibly mixed into the cleaning water and a cleaning area of the cleaning water discharged by the air mixing. FIG. 42 is an explanatory diagram illustrating a configuration of a cleaning nozzle 140A according to another modification in which air is forcibly mixed.

(1) As shown in FIG. 40, the cleaning nozzle 140 of the modified example has a nozzle head 142 in which each of head passages 34 to 36 of each of the water discharge holes 31 to 33 for butt cleaning, soft cleaning, and bidet cleaning. First to third air passages 143 communicating with
145. These air passages are provided for the cleaning nozzle 1
In the upper compartment 140b of the 40 cylindrical portion 140a,
The air pipes 146 to 148 are individually connected. Compressed air sent from the air pump 149 is supplied to each of the air pipes at a flow rate adjusted by the air flow rate adjustment valve 150. The air flow control valve 150 also switches air supply to each of the air pipes 146 to 148.
Therefore, the compressed air is blown into each of the head channels of the nozzle head 142 via the respective air channels. The wash water flowing in each of the head flow paths in a pulsating flow or an intermittent flow is subjected to frictional force generated by blowing compressed air while being discharged in a water mass as described above due to water discharging in the pulsating flow or the intermittent flow. For this reason, by blowing compressed air, the cleaning water is discharged as a minute water mass as shown in the figure. Even if these minute water bodies are ejected from the water discharge holes, they are in a state in which they are hardly combined with each other again.

When air is mixed in this manner, as shown in FIG. 41, it can be seen that the water mass is finely dispersed and the cleaning area increases as the blowing air flow rate increases. Therefore, when the amount of water is reduced and the cleaning range is narrowed, the cleaning range can be expanded by increasing the air flow rate. Further, as shown in FIG. 18, the pulsating flow or intermittent flow of cleaning water discharged from the water discharge hole increases to a large water mass, but by blowing air, the water mass is utilized by utilizing the shear force of the air. Can be made small, so that a soft washing feeling can be obtained. In this way, by blowing air, it is possible to increase or decrease the cleaning range and adjust the cleaning intensity. In addition, the washing strength and the like can be more finely adjusted in combination with the adjustment of the water force and the washing feeling in the pulsating flow or the intermittent flow. Furthermore, the amount of washing water can be reduced by the amount of air mixing, and a soft feeling of washing can be provided while enhancing the effectiveness of water saving.

(2) As shown in FIG. 42, a cleaning nozzle 140A of another modified example is provided with head passages 34 for the butt cleaning, soft cleaning, and bidet cleaning in the nozzle head 142A.
The first to third air pipes 151 to 153 are inserted and provided in the water discharge holes 31 to 33, respectively. This first one
The third air pipes 151 to 153 are connected to the air pump 1 described above.
49 is connected. Therefore, the compressed air from the first to third air pipes 151 to 153 is directly jetted into the cleaning water flowing through the respective head flow paths 34 to 36. According to this configuration, since the air is blown directly into the cleaning water flow, the action of dispersing the cleaning water flow can be further enhanced.

The cleaning nozzle can be modified so as to take in the natural suction by using the negative pressure of the cleaning water flow. FIG. 43 and FIG.
FIG. 4 is a schematic cross-sectional view of a main part of a cleaning nozzle of each modified example for achieving natural suction. FIG. 45 is a schematic view schematically showing a cleaning nozzle of another modified example for natural suction, and FIG.
Is a graph showing air entrainment characteristics in another modified example.

(1) As shown in FIG. 43, the nozzle head 142B of the cleaning nozzle of this modified example has a flow path in a part of each of the head flow paths 34 to 36 for butt cleaning, soft cleaning, and bidet cleaning. Orifices 154 to 156 to reduce the area
Having. Further, downstream of each of the orifices, an outside air introduction passage 157-1 through which outside air is introduced from the back of the nozzle head.
59. According to this configuration, a negative pressure is generated when the flow of the washing water flowing out of each orifice increases the flow path area, and air is mixed into the washing water from each of the outside air introduction passages 157 to 159. According to this modification, there is no need to provide an air pump or the like, so that the configuration can be simplified. In this case, the orifices corresponding to the head channels 34 to 36 for buttocks washing, soft washing, and bidet washing may have different orifice diameters for each of the buttocks washing, soft washing, and bidet washing. For example, the orifice diameter is defined so that the amount of air entrainment in soft cleaning / bide cleaning is larger than that in bottom cleaning. In this way, the degree of air incorporation differs between the bottom cleaning, the soft cleaning, and the bidet cleaning, so that the cleaning feeling can be changed for each cleaning operation.

(2) In another modified example shown in FIG. 44, the nozzle head 142C is provided with an outside air introduction pipe 160 arranged in the nozzle flow path 36 for bidet cleaning. Even in this case, air can be directly introduced into the washing water stream. The same applies to the nozzle flow path for ass cleaning and soft cleaning.

(3) In another modification shown in FIG. 45, the following configuration is provided to improve the efficiency of natural aspiration. In addition, for convenience of explanation, one water discharge hole (butt water discharge hole) will be described, but the same applies to a soft water discharge hole and a bidet water discharge hole. Another modification is the nozzle head 161.
In addition, an outside air entrapment chamber 162 is provided. In the nozzle head 161, the orifice 163 and the buttocks discharge hole 31 in the buttocks cleaning head flow path 34 are opposed to each other with the outside air entrainment chamber 162 interposed therebetween.
Is provided with an outside air introduction passage 164. With this configuration, a so-called jet pump having the washing water discharged from the orifice 163 as the driving fluid, the air from the outside air introduction passage 164 as the driven fluid, and the buttocks discharge hole 31 as a throat is configured. .

In this modification, since the orifice 163 is provided in the same direction as the direction in which the washing water is discharged, attenuation of the water force can be suppressed. Further, the amount of air entrainment can be increased by the action of the jet pump. Therefore, the amount of washing water can be reduced by an amount corresponding to the increase in the amount of air, and the effectiveness of water saving can be further improved, and a more soft feeling of washing can be provided. Furthermore,
Since the orifice 163 and the flush water spouting direction are the same, there is no bending of the pipe downstream of the orifice. Therefore,
Since the collision of the washing water does not occur at the bent portion of the pipe, there is no energy loss and the flow velocity is not reduced.

In this modification, the air entrainment amount was measured by variously changing the area ratio (S2 / S1) between the orifice diameter S1 and the throat diameter S2. When this air entrapment amount is expressed as a ratio of air to water (air entrapment ratio%) and graphed, as shown in FIG. 46, if this area ratio is 1 to 4, a large air entrapment of 40 to 80% is obtained. Made with quantity. In other words, if the jet pump is configured as in this modified example and the above-mentioned area ratio is set to 1 to 4, it is about 1 .4 compared to the one having the orifice and the outside air introduction passage as shown in FIG.
The air entrainment amount can be increased by about 2 to 2 times, which is advantageous for improving the effectiveness of water saving and for giving a soft feeling of washing. In addition, the air entrapment amount was measured as follows. That is, a microwire air flow meter of the hot wire type is connected to the air suction port to directly measure the air flow rate, calculate the air entrapment rate from this air flow rate and the flow rate of water supply to the nozzle, and use this as the air entrainment amount. 46 graphs were obtained.

FIG. 47 is a schematic perspective view schematically showing an internal structure for explaining a nozzle head 170 in which the cleaning nozzle shown in FIG. 45 is further modified, and FIG. 48 is a nozzle according to another modification. 5 is a graph showing air entrainment characteristics in a head 170.

As shown in FIG. 47, the nozzle head 170 of this modification comprises an outside air entrapment chamber 162, an orifice 163, a tail water discharge hole 31 as a throat, and an outside air introduction passage 164, similarly to the nozzle head 161 described above. Jet pump. The nozzle head 170 has a cleaning water vortex chamber 171 between the orifice 163 and the head channel 34 for cleaning the buttocks. The washing water vortex chamber 171 has an inner peripheral wall that is larger in diameter toward the bottom and that is inclined from the bottom to the orifice. This cleaning water vortex chamber 17
Since the head flow path 34 is eccentrically connected to 1 as shown in the figure, the cleaning water flowing into the swirl chamber swirls along the inclined inner peripheral wall as indicated by an arrow SY in the figure. Then, the washing water swirled in this way is discharged with a large amount of air entrained when the orifice 163 is added and the water is spouted from the throat (ass discharge port) through the outside air entrapment chamber 162.

The thus-discharged washing water is affected by the swirling force of the washing water itself, and adopts a spiral water-discharge form as schematically shown in the figure. In this modified example, when the washing water flows into the washing water vortex chamber 171, the washing water is supplied from the head channel 34 for buttocks washing in the above-described pulsating flow or intermittent flow. Therefore, the flush water discharged in this manner adopts a spiral (cone-shaped) water discharge form in which air is mixed as shown in the figure, while maintaining the above-described water discharge property in the pulsating flow or the intermittent flow. . The above-mentioned swirling force of the washing water is determined by the inflow speed (washing water speed) of the washing water into the washing water swirl chamber 171, and this inflow speed defines the degree of swirling of the washing water in the washing water swirl chamber 171. Also, the degree of aeration is determined by the washing water speed. Therefore, by adjusting the washing water inflow speed (washing water speed) into the washing water vortex chamber 171, it is possible to variously adjust the degree of spiral expansion and the degree of air mixing in the spiral water discharge form. Since the extent of the spiral affects the cleaning area, in this modification, the cleaning area can also be adjusted. The washing water speed can be variously changed by frequency adjustment and duty ratio adjustment in a pulsating flow or an intermittent flow, and flow adjustment by a flow control switching valve. Therefore, it is possible to discharge water with various cleaning areas and discharge water with various air mixing amounts, and it is possible to provide a more comfortable cleaning feeling, a soft feeling, and the like. In addition, it is possible to realize water pressure adjustment at a low flow rate by a pulsating flow or an intermittent flow.

Also in this modified example, when the air entrapment amount was measured by variously changing the area ratio (S2 / S1) between the orifice diameter S1 and the throat diameter S2, the result shown in FIG. 48 was obtained. That is, as compared with the above-described nozzle head 161 having no vortex chamber (see FIG. 45), the air entrainment amount can be increased by about 1.3 to 2 times, and the effectiveness of water saving is improved. From the viewpoint of the addition of
It is preferable to set the area ratio to about 1.2 to 3 from the viewpoint of increasing the amount of air entrainment. The air entrainment was measured by the same method as described above.

The nozzle head 1 of the modification shown in FIG.
Numeral 70 defines the degree of spiral expansion and the degree of air entrapment in the spiral water discharge form by the flow rate of cleaning water into the cleaning water vortex chamber 171 (the cleaning water velocity). Therefore, only by supplying the continuous flow of cleaning water that has been subjected to normal flow rate adjustment using a flow rate adjusting valve or the like, it is possible to discharge water in various cleaning areas and water with various amounts of air mixed in. Soft feeling and the like can be imparted. That is, the above-described nozzle head 17
According to 0, it is not necessary to supply the washing water in a pulsating flow or an intermittent flow state, and it is possible to provide a comfortable washing feeling or a soft feeling by simply replacing the nozzle head of the existing local cleaning device. The device can easily be improved.

In addition, the nozzle head 170 determines only the extent of the spiral in the spiral water discharge form by the cleaning water vortex chamber 1.
It is defined by the washing water inflow speed into the 71 (washing water speed). Therefore, only by supplying a continuous flow of washing water whose normal flow rate has been adjusted by a flow rate adjusting valve or the like, it is possible to discharge water in various washing areas depending on the extent of the spiral. For this reason, in the above-mentioned nozzle head 170, a comfortable washing feeling, a soft feeling, and the like can be imparted even when the configuration relating to the supply of the washing water and the entrainment of air in the state of the pulsating flow or the intermittent flow is omitted.

It is also possible to force air into the nozzle head 170 by using an air pump or the like. In this way, the amount of air mixed in increases, so that a more soft feeling can be provided. In a case where forced air mixing is performed in this way, the above-described pulsating flow or intermittent flow of washing water is discharged while forced air mixing is performed, or the forced air mixing is stopped. It is also possible to discharge water with a pulsating flow or intermittent flow of cleaning water.

In addition, the local cleaning apparatus of the above-described embodiment or each modified example can be modified as follows. (1) Although the above-described wave generation device 74 was used to generate the pulsating flow of washing water, a pump capable of obtaining a pulsating output, such as a gear pump or a trochoid pump, can be used. In this case, the pulsation frequency can be variably controlled through the rotation speed control of these pumps to adjust the water force and the like. Further, it is also possible to perform the phase angle control of the wave generating device 74 with the AC drive as the AC drive, and to adjust the water force or the like similarly to the duty ratio control in the above-described embodiment. (2) Also, an on-off valve 128 that is used for washing water of an intermittent flow through an intermittent flow path is provided with a solenoid valve using a solenoid,
A poppet-type valve that opens and closes the water supply port by opening and closing the water supply port poppet to open and close the flow path may be used.

(3) A pressurizing device 122 having a pressurizing pump composed of a line pump and an intermittent valve 128 are used for pressurizing the washing water and thereafter forming the intermittent flow, and both of them are configured separately. . However, the configuration is not limited to this, and the cleaning water may be configured to be pressurized and intermittent. FIG. 49 is an explanatory view for explaining a cleaning nozzle 175 of still another modification, and FIG.
FIG. 14 is an explanatory diagram illustrating a schematic configuration of a solenoid pump 176 used in a cleaning nozzle 175 of this modified example.

As shown, this solenoid pump 1
76 is a suction-side check valve 176a and a discharge-side check valve 176b.
Is a normal flow type electromagnetic pump having The solenoid pump 176 excites the electromagnetic solenoid 176c to move the plunger 176d back and forth,
This is a valve for obtaining intermittently pressurized water from the pump chamber 176e. An ordinary solenoid pump uses an accumulator in combination with an accumulator in order to eliminate fluid intermittently due to the reciprocation of a plunger sandwiched between check valves on a suction side and a discharge side and to obtain a smooth pressure. However, the solenoid pump 176 of this modification is
By using the intermittent pressure as it is without using an accumulator, an intermittent cycle synchronized with the excitation voltage of the electromagnetic solenoid can be obtained. According to this embodiment, since the pressurizing unit and the intermittent unit can be realized by one solenoid pump 176, the configuration can be simplified. Even in this case, the above-described excitation cycle of the electromagnetic coil,
That is, the intermittent cycle is set so that its frequency falls within the dead band frequency range described above.

(4) In addition, the pressurizing device 122 and the intermittent valve 128 are used for pressurizing the washing water and thereafter making the intermittent flow.
As shown in FIG. 8, the intermittent flow in which the pressure fluctuation of the pressure regulating valve is the maximum pressure and the periodic fluctuation of the pressure occurs, but the intermittent flow in which the pressure fluctuation of the pressure regulating valve is the minimum pressure and the periodic fluctuation of the pressure occurs. It can also be. In this case, even when the pressure of the water supply source itself such as a water supply is originally low, the water can be spouted with the intermittent flushing water as described above.

(5) Further, in the above-described embodiment and its modifications, by stopping the driving of the wave generating device 74 and the like, it is possible to discharge the washing water by the continuous flow as in the conventional case. Therefore, a button for selecting the on / off state of the pulsating flow spout is provided on the remote control device or the sleeve of the main body, etc., and in accordance with the operation of the button, that is, according to the user's preference, the form of spouting of the pulsating flow flushing water. It is also possible to select the same water discharge mode as that of the conventional method using the local cleaning and the continuous flow of cleaning water.

(6) A buffered hot water tank may be provided on the tapping side of the tank 62 of the heat exchange unit 60, and this may be used in place of the accumulator 73. As a configuration of this buffered hot water storage tank, a tank arranged so as to have a higher water level than the tank 62 is provided, and a float switch SS18 and a vacuum breaker 63 are installed in this tank. This buffered hot water tank
The pressure fluctuation propagating from the downstream side to the tank is absorbed in substantially the same manner as the accumulator. Therefore, even with this buffered hot water storage tank, disturbance in the temperature distribution in the tank can be suppressed by fluctuation absorption, and the temperature in the tank can be made uniform, thereby stabilizing the temperature control characteristics. A mixing plate or a mixing passage for promoting mixing of hot water may be provided in the buffered hot water storage tank to further enhance the pressure fluctuation absorbing effect. Further, the buffered hot water tank may be integrated with the heat exchange unit, and a mixing plate or the like may be provided inside the unit.

(7) Instead of using an incoming water temperature sensor to detect the incoming water temperature to the heat exchange unit 60, based on the amount of supplied electricity to the heater 61, for example, the amount of supplied electricity to the heater May be calculated based on the differential value of. This eliminates the need for an incoming water temperature sensor,
The configuration can be simplified. The incoming water temperature sensor SS16a and the outgoing water temperature sensor SS113 can be provided not only in the tank but also before and after the heat exchange unit as long as the location reflects the temperature of the hot water in the tank.

Next, another modification will be described.
FIG. 51 is a schematic cross-sectional view of a main part of a cleaning nozzle 180 included in the local cleaning device of this modified example. In the following description, the same member names and the same reference numerals will be used as described above. In addition, the description will be made assuming that the cleaning nozzle 180 is for cleaning the buttocks.

The cleaning nozzle 180 of this modified example discharges pulsating or intermittent cleaning water by forcibly mixing air into the cleaning water and discharging the water by periodically changing the amount of air mixed. There is a feature. That is, as shown in FIG. 51, the cleaning nozzle 180 has
The cleaning water is supplied to the water discharge hole 31 through the nozzle flow path 181. An air mixing chamber 182 is formed below the water discharge hole opening. In the air mixing chamber 182, the nozzle flow path is formed by a porous pipe 183 made of resin, metal, ceramic, or the like. .

The air mixing chamber 182 is in communication with an air pressure feeding mixing unit 185 via an air flow path 184.
As shown schematically in the drawing, this air pressure feeding / mixing unit 185 feeds air to the air mixing chamber while periodically varying the air flow rate or at a fixed set flow rate. The pneumatic feeding and mixing unit 185 is
At this time, air is mixed into the washing water by the porous pipe 183. The porous pipe 183 mixes air as fine bubbles into the cleaning water passing therethrough due to its porous nature. Therefore, the pneumatic feed mixing unit 18
Combined with the pumping from 5, it is possible to mix up to four times the volume of air to the washing water.

The above-mentioned pneumatic feed mixing unit 185 is
It can be configured using a variable displacement air pump, or can be configured using a constant displacement or variable displacement air pump and a flow regulating valve disposed downstream thereof. Alternatively, the air pump can be configured using these air pumps and an on-off valve arranged downstream of the air pump to open and close the pipeline. In order to pump air while periodically changing the air flow rate in the air pressure feed mixing unit 185 configured as described above, the flow rate may be periodically changed by controlling the rotation speed of the air pump, or the pipe may be controlled by a flow control valve. The effective area of the road may be changed periodically in the range of 0 to 100%, or may be changed periodically in the range of 10 to 100%. In the case of an on-off valve, the opening and closing of the pipeline may be repeated periodically. In this case, if a positive displacement air pump is used as the air pump, the air supply / stop / repeating is repeated in accordance with the operation of the air pump. In such a configuration, when the effective area of the pipeline is set to 0 by the flow control valve, the pipeline is shut off by the on-off valve, or the operation of the positive displacement air pump is stopped, the washing water is cut off. Situation, i.e., only air comes out of the spout. Therefore, it is possible to adopt a water discharge mode in which the mixed air becomes a sandwich in a state of water, air, water, air, etc. without being finely mixed with water. This water discharge form has almost the same behavior as the above-described water discharge form of intermittent flow of wash water. For this reason, the apparent volume increases due to aeration and the flow rate of the cleaning water is increased, and the water is interposed between the air and the cleaning water is ejected in a water mass. The same effect as can be expected.

In the cleaning nozzle 180, when water is supplied to the nozzle from the cleaning water supply unit 186 in a state in which the air supply from the air supply mixing unit 185 is stopped, the cleaning water is continuously supplied from the bottom water discharge hole 31. Can be spouted. When the nozzle is supplied with the air pressure from the air pressure mixing unit 185 at a constant set flow rate, the washing water in which bubbles are mixed at a substantially constant ratio can be in a continuous flow state. In other words, it is possible to selectively use the flushing water that has been mixed with air and the flushing water that contains only the flushing water. And water can be saved by the amount of air mixing. In addition, by adjusting the setting of the amount of mixed air and / or adjusting the flow rate of the washing water, the washing water mixed with air at various ratios can be discharged in a continuous flow state, depending on the amount of mixed air and the flow rate. A feeling of washing and water force can be obtained.

Further, in the cleaning nozzle 180, air is pressure-fed while periodically varying the air flow rate and mixed into the cleaning water. The wash water is periodically repeated. In the part where the air mixing amount is dense, the flow rate of the washing water is increased by the amount of air mixing, and in the sparse part, the flow velocity does not increase as much as the dense part. And the part where the air mixing amount is high and the flow velocity is high is
Catch up with the sparse and slow flow area and merge with it. This phenomenon is not different from the phenomenon described with reference to FIG. Moreover, in this modified example, when the air is pressure-fed while periodically varying the air flow rate, the variation frequency determined by the variation cycle is set within the dead band frequency range described above. As a result, the washing water spouting in this modified example becomes a pulsating flow or intermittent flowing spouting of the washing water according to the state of the periodic fluctuation of the air flow rate. It is the same as the one we aimed for. In other words, the washing water spouting by the washing nozzle 180 of this modified example is a water lump-like spout as described above by spouting in a pulsating flow or an intermittent flow. It becomes a lump state. Even if these minute water bodies are ejected from the water discharge holes, they are in a state in which they are hardly combined with each other again. Therefore, the same effect as in the above-described embodiment, that is, the improvement of the water saving effect and the setting of various feelings of washing and water force can be achieved by the washing nozzle 180. In the cleaning nozzle 180, by adjusting the fluctuation width at the time of periodic fluctuation of the air flow rate and / or the flow rate of the cleaning water, it is possible to diversify the cleaning feeling. That is, even if the flow velocity is reduced due to a shortage of water, the water force can be maintained or the strength can be adjusted by adjusting the fluctuation width during the air pressure feeding.

Next, a description will be given of a modified example in which the washing water is discharged from the second washing water outlet pipe 56b when the flush water discharge amount is adjusted. FIG. 52 is a schematic perspective view showing the functional water unit 190 provided in the second washing water outlet pipe 56b in a partially broken manner.

The functional water unit 190 reforms the supplied cleaning water into cleaning water containing free chlorine, which has a sterilizing / sterilizing effect on bacteria such as Escherichia coli. As shown in FIG. It has a generation tank 191 and a pair of flat-plate-like electrodes for chlorine generation 192 arranged in the tank in opposition. The functional water generation tank 190 is a resin tank having chemical resistance (free chlorine resistance), and flows the washing water flowing into the tank from the in-side pipe 193 to the out-side pipe 194. This in-side / out-side pipeline is
A part of the flush water conduit 56b is formed, and the out-side conduit 194 is disposed so that the tip thereof is directed to the above-mentioned deodorizing intake port and local drying exhaust port. In this case, the out-side pipe 194 is connected to the chamber 41 of the nozzle holding portion 41b.
c (see FIG. 8) so that the end of the conduit faces the tubular portion 24a of the cleaning nozzle. Note that the in-side pipe 193 and the out-side pipe 194 may be arranged to face each other so that the washing water flows efficiently in the tank.

Here, the chlorine generation electrode is an electrode capable of inducing a chlorine generation reaction, and has an electrode structure in which an electrode shape is formed of a conductive base material and a chlorine generation catalyst is supported on the surface thereof. And a structure in which an electrode is formed using a conductive material composed of a chlorine generation catalyst. Electrodes for chlorine generation of this latter structure are variously referred to depending on the type of catalyst for chlorine generation, for example, iron-based electrodes such as ferrite, palladium-based electrodes, ruthenium-based electrodes, iridium-based electrodes, platinum-based electrodes, ruthenium-tin. System electrode, palladium-platinum system electrode, iridium-platinum system electrode, ruthenium-platinum system electrode, iridium-platinum-tantalum system electrode and the like. In the case where the chlorine-generating catalyst is supported on the conductive base material, the base material for the structure can be made of inexpensive materials such as titanium and stainless steel, which is advantageous in manufacturing cost. In particular, when using tap water having a chlorine ion content of only about 3 to 40 ppm in the chlorine ion-containing water, an iridium-based electrode supporting iridium and an iridium-platinum alloy in order to improve the generation efficiency of free chlorine. An iridium-platinum-based electrode carrying iridium, a iridium-platinum-tantalum-based electrode carrying an iridium-platinum-tantalum alloy, and the like are suitable. In addition, when using a catalyst in which a chlorine-generating catalyst is supported on a conductive base material as described above, when a platinum-containing alloy catalyst is supported, the fixing strength to the base material is increased, so that desorption does not easily occur. It is preferable because the life can be improved.

A DC voltage is applied to the chlorine generating electrode such that one is an anode and the other is a cathode. The washing water supplied to the functional water unit 190 is tap water containing chlorine ions that is a source of free chlorine generation. Therefore, by applying a DC voltage in a state where the cleaning water is stored in the tank of the functional water unit 190, free chlorine is generated on the anode side. Free chlorine has a bactericidal effect on bacteria such as Escherichia coli. Therefore, the functional water unit 190
Water made rich in free chlorine in the following (hereinafter referred to as functional water)
Water is discharged toward the deodorizing air intake port and the local drying exhaust port, thereby preventing the growth of bacteria and being sanitary.
In addition, urine components tend to adhere to these intake ports and exhaust ports, but these urine component deposits can be decomposed and removed by free chlorine-rich functional water. In addition, by discharging the functional water toward the cleaning nozzle 24 in the nozzle holding unit,
It is hygienic and preferable because the propagation of bacteria can be prevented at the nozzle. Then, as described above, when the washing water is introduced into the second washing water outlet conduit 56b when the nozzle is advanced or retracted,
It is preferable that the surface of the cylindrical portion 24a of the cleaning nozzle can be sterilized and cleaned between the nozzle advance operations before and after the local cleaning.

In the functional water unit 190, about 50 cc of tap water is stored in the tank, and when a voltage of 24 VDC is applied to the chlorine generation electrode 192 for about 1 minute, the functional water having a free chlorine concentration of about 1.5 ppm is obtained. The electrode area and the inter-electrode distance are determined so that the current can be generated, and the electronic control unit 80 controls the energization (constant voltage control) of the chlorine generation electrode 192. In this case, when the electric conductivity of the washing water is high and the current flows too much between the electrodes, the applied voltage is set to a low value to extend the life of the electrodes and prevent heat generation in the current-carrying part. Further, the applied voltage is changed as needed according to the electric conductivity of the washing water, and the chlorine generation electrode 192 is changed.
The power supply control to the power supply may be constant current control or constant power control. In performing the power supply control, the electronic control unit 80 stops the power supply after a certain time (about one minute) has elapsed from the start of the power supply. As a result, it is possible to avoid problems such as excessive generation of free chlorine, an inadvertent increase in free chlorine concentration, a reduction in electrode life, and generation of bubbles due to excessive electrode heating.

The functional water generated by the functional water unit 190 is at the time of local cleaning, and is used in the above-mentioned pre-nozzle cleaning and post-nozzle cleaning (see FIG. 28). In addition to being spouted at 24, water is spouted at the time of washing water spouting at the time of local washing (soft start, main washing). The functional water spouting at the former timing is a case where the flow control switching valve 65 guides the flushing water only to the second flushing water outlet pipe 56b, and the functional water spouting at the latter timing is This is a case in which the adjustment switching valve 65 also guides water to the washing nozzle side after adjusting the opening ratio.

In addition, the functional water unit 190 may be configured to discharge water at the following timing in order to perform a sterilizing function. Timing based on detection of a user's use state (for example, detection of a seating sensor or a cleaning operation),
At a regular timing every predetermined time and at a timing like a timer such as 6:00 in the morning, 12:00 in the day, and 11:00 at night, that is, at the above timing while the local cleaning is not performed, the flow control switching valve is provided. 65 is used to guide washing water only to the second washing water outlet pipe 56b.
By doing so, at these timings, the out side pipeline 194
The functional water is discharged to the above-mentioned water discharge destination. Even when the functional water unit 190 is a storage type that is used after generating the functional water in advance, the timing of generating the functional water is the same as the timing described above, and the functional water is generated. The energization is stopped when a predetermined time has elapsed from the start of energization. In this case, the periodic discharge of the functional water performed at the above-described periodic timing during the non-performing period of the local cleaning can be arbitrarily set such as every two hours or every four hours.
When the functional water spouting is performed at these timings, a flow rate adjustment suitable for the functional water spouting is performed. In addition, as described above, the tank 191 of the functional water generation unit 190
Is not a storage type (50 cc storage), but a type in which a water passage is sandwiched between chlorine generation electrodes 192 may be used. In this type, the above-described electrode energization control is executed at each of the above-described timings, and each time functional water is discharged through flow path switching.

Next, a description will be given of a modification of the arrangement of the second washing water outlet pipe 56b for controlling the flow of the washing water discharge amount.
FIG. 53 is a block diagram illustrating a water channel configuration of a local cleaning device according to a modification.

As shown, in this modification, a flow control valve 65a is provided downstream of the heat exchange unit 60 in place of the flow control switching valve 65, and the second washing water outlet pipe 56b
To the upstream water supply line 51 on the upstream side of the heat exchange unit 60.
And branch off directly from Also in this case, the second cleaning water outlet pipe 56b is disposed so that its end faces the deodorizing intake port, the local drying exhaust port, or the cleaning nozzle 24. In this modification, the flow control by the flow control valve 65a is performed by adjusting the pipe opening. And the wave generation unit 7
Wash water having a difference between the flow control amount (wash water discharge amount) adjusted by the flow control valve 65a so as to flow to zero and the wash water flow amount reaching the flow control valve 65a is discharged from the second wash water outlet pipe 56b. You. Therefore, the amount of washing water corresponding to the set flow rate of the flow control valve 65a is discharged from the second washing water outlet pipe 56b.
By discharging the washing water from the second washing water outlet pipe 56b, the flow rate adjustment at the flow regulating valve 65a can be supplemented, and the effectiveness of the flow rate adjustment can be enhanced.

In the above-described embodiment and each of the modifications, the head flow paths for the tail cleaning, the soft cleaning, and the bidet cleaning in the nozzle head may be arranged vertically.
In this way, the width direction of the cleaning nozzle can be narrowed, and various devices and units including the nozzle device can be arranged close to each other,
The size of the device can be reduced. In this case, the nozzle flow path can be formed vertically in the cleaning nozzle in addition to the upper and lower head flow paths. Also, the nozzle head
It is also possible to adopt a configuration in which a head cover having each of the above water discharge holes is mounted on a base having each of the above head flow paths, and an outside air introduction hole is provided between the base and the head cover. Further, the case where the cleaning water is spouted in a pulsating flow or an intermittent flow state has been described as an example, but the present invention can be applied to a case where the cleaning water is supplied in a continuous flow state in contact with the cleaning water spouting.

The embodiments of the present invention have been described above.
The present invention is not limited to the above-described examples and embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.

For example, the heat exchange unit 60 has a heater 61 made of a spiral nichrome wire built in a small-capacity tank 62. However, the following is also possible.
That is, if the heater 61 is a laminated cylindrical ceramic heater, the leakage detection circuit and the overheat prevention circuit can be printed on the green sheet before baking and each circuit can be formed on the heater surface by baking. Therefore, an external leakage detection / leakage protection circuit becomes unnecessary, and an overheat prevention device such as a bimetal is also unnecessary. The heat exchange unit 60 can be reduced in size by stacking and omitting the equipment. Also, the heater 61
May be an electromagnetic induction heater that causes electromagnetic induction in a resistor by a change in magnetic flux linked to a high-frequency current to generate the resistor by Joule heat. In this case, since it is not necessary to arrange the heater 61 in water in the tank, the leakage protection circuit becomes unnecessary, and the size can be reduced accordingly. Furthermore, since the degree of freedom of the shape of the heater is high, the heater 61 can be formed in a shape along a meandering channel, and the washing water can be efficiently heated.

Further, the heat exchange unit 60 may be of a hot water storage type instead of an instantaneous type. This makes it possible to extend the continuous water discharge time of the cleaning water at the predetermined temperature. Further, warming of the washing water in the tank can be performed when the toilet is not used, such as at midnight, and in that case, the heater 61 with low power consumption can be used. In this way, the maximum power consumption of the entire local cleaning device can be reduced, so when installing the local cleaning device in an existing toilet, the indoor wiring capacity may be insufficient or the capacity contract may be changed. Is reduced.

[Brief description of the drawings]

FIG. 1 shows a local cleaning device 1 according to an embodiment mounted on a toilet bowl.
It is a schematic perspective view showing 0.

FIG. 2 is a block diagram illustrating a schematic configuration of the local cleaning device 10 with a focus on a water channel system.

FIG. 3 is a cross-sectional view illustrating a schematic configuration of an accumulator 73 provided in the waterway system.

FIG. 4 is a cross-sectional view illustrating a configuration of a wave generation device 74 similarly arranged in a waterway system.

FIG. 5 is an explanatory diagram illustrating a state of a flow of cleaning water by the wave generation device 74.

FIG. 6 is a schematic diagram schematically showing a state of installation of a wave generation device 74.

FIG. 7 is a block diagram illustrating a schematic configuration of a control system.

FIG. 8 is a schematic perspective view showing a nozzle device 40.

9 is a schematic sectional view taken along line 9-9 in FIG.

FIG. 10 is an explanatory diagram for explaining how the cleaning nozzle moves forward and backward.

FIG. 11 is a schematic cross-sectional view of a main part for describing a configuration of a flow path switching valve 71 included in a cleaning nozzle.

FIG. 12 is an exploded perspective view of a main part of the flow path switching valve 71.

FIG. 13 is a plan view showing the nozzle head 25 in a plan view and a part of the periphery of the head cut away.

FIG. 14 is a plan view showing a modified example of the nozzle head 25.

FIG. 15 is an explanatory diagram illustrating a state of excitation of a pulsation generating coil 74c of a wave generation device 74 that generates a pulsation at the time of flush water discharge.

FIG. 16 is a timing chart showing a flow rate and a flow rate of cleaning water flowing out of the wave generation device 74.

FIG. 17 is an explanatory view schematically illustrating a state of flush water spouting from a tail spout hole 31 of the nozzle head 25.

FIG. 18 shows a case in which pulsating flush water is discharged from a water discharge hole.
It is explanatory drawing explaining the process in which the discharged washing water is amplified into a pulsating flow.

FIG. 19 is an explanatory diagram illustrating a state in which a cleaning water stream collides with a wall surface.

FIG. 20 is an explanatory diagram illustrating a state in which a pressure sensor plate Ps is installed facing the buttocks discharge hole 31 and separated by a predetermined distance La.

FIG. 21 is an explanatory diagram three-dimensionally expressing a position on a pressure sensor plate Ps and a peak value of pressure.

FIG. 22 is a timing chart showing a detection signal detected from one of the detection units.

FIG. 23 is a graph showing a relationship between an average water discharge amount and a cleaning amount.

FIG. 24 is an explanatory diagram for explaining the reason why the cleaning intensity varies depending on the increase or decrease of the frequency.

FIG. 25 is a graph showing a relationship between a pulsating frequency and a washing intensity of a pulsating flow and discomfort caused by stimulation of a human body local part.

FIG. 26 is an explanatory diagram illustrating a control example in which the pulsation frequency in the pulsating flow of the washing water is made different between the butt cleaning and the bidet cleaning.

FIG. 27 is an explanatory diagram illustrating a control example of a pulsation frequency ftm and a duty ratio Dtm.

FIG. 28 is a time chart illustrating a cleaning operation of the local cleaning apparatus 10 according to the embodiment.

FIG. 29 is a circuit diagram illustrating an example of a bottom detection circuit 81 for the pulsation generation coil 74c.

FIG. 30 is an explanatory diagram for explaining a state of a current waveform at the time of energizing excitation of the pulsation generating coil 74c.

FIG. 31 is an explanatory diagram for describing an effect obtained by the accumulator 73.

FIG. 32 is an explanatory diagram illustrating a control method of increasing the flow velocity while keeping the flow rate constant when performing pulsating flush water discharge, and is an explanatory diagram illustrating a control state when the flow velocity is low. .

FIG. 33 is a block diagram illustrating a water channel configuration of a local cleaning device according to a modification.

FIG. 34 is a block diagram illustrating a water channel configuration of a local cleaning device according to another modification.

FIG. 35 is a schematic configuration diagram showing a schematic configuration of a flow control switching valve 75 of a modified example, partially cut away.

FIG. 36 is a block diagram illustrating a water channel configuration included in a local cleaning device according to another modification.

FIG. 37 is a cross-sectional view illustrating a configuration of an intermittent valve 128 arranged in the waterway system.

FIG. 38 is an explanatory diagram illustrating a water pressure in a water channel system of a local cleaning device according to a modified example having the intermittent valve.

FIG. 39 is a block diagram illustrating a water channel configuration of a local cleaning device according to another modification.

FIG. 40 is a cleaning nozzle 1 of a modified example in which air is forcibly mixed.
FIG. 4 is an explanatory diagram for explaining a configuration of a first embodiment;

FIG. 41 is a graph showing a relationship between an air mixing amount when air is forcibly mixed into the cleaning water and a cleaning area of the cleaning water spouted with the air mixing.

FIG. 42 is an explanatory diagram illustrating a configuration of a cleaning nozzle 140A according to another modification for forcibly mixing air.

FIG. 43 is a schematic cross-sectional view of a main part of a cleaning nozzle of each modified example for natural suction.

FIG. 44 is a schematic cross-sectional view of a main part of a cleaning nozzle according to each modification for achieving natural suction.

FIG. 45 is a schematic view schematically showing a cleaning nozzle according to another modification for achieving natural suction.

FIG. 46 is a graph showing air entrainment characteristics in another modified example.

FIG. 47 is a schematic perspective view schematically showing the internal structure in a see-through manner for explaining a nozzle head 170 in which the cleaning nozzle shown in FIG. 45 is further modified.

FIG. 48 shows a nozzle head 170 according to another modification.
6 is a graph showing air entrainment characteristics at the time of FIG.

FIG. 49 is an explanatory diagram illustrating a cleaning nozzle 175 of still another modified example.

FIG. 50 is an explanatory diagram illustrating a schematic configuration of a solenoid pump 176 used in the cleaning nozzle of this modified example.

FIG. 51 is a schematic cross-sectional view of a main part of a cleaning nozzle 180 included in a local cleaning device according to another modification.

FIG. 52 is a schematic perspective view showing the functional water unit 190 in a partially broken manner.

FIG. 53 is a block diagram illustrating a water channel configuration of a local cleaning device according to another modification.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Local washing | cleaning apparatus 12 ... Body part 14 ... Remote-control device 20 ... Toilet lid 22 ... Sleeve part 24a ... Cylindrical part 24b ... Belt holding body 24c ... Track holding body 24d ... Holding part 24 ... Cleaning nozzle 25 ... Nozzle head 26a ... First nozzle flow path 26b ... Second nozzle flow path 26c ... Third nozzle flow path 28 ... Display unit 29 ... Cover 29a ... Light transmission window 30 ... Water discharge hole 31 ... Bottom water discharge hole 32 ... Soft water discharge hole 33 ... Bidet Water discharge hole 34 ... First head flow path 35 ... Second head flow path 36 ... Third head flow path 40 ... Nozzle device 41 ... Base 41a ... Stand 41b ... Nozzle holding part 41c ... Chamber 42 ... Nozzle drive motor 43 ... Transmission mechanism 43a: Drive pulley 43b: Driven pulley 43c: Timing belt 43d: Tension roller 44: Guide rail 45: Nozzle advance / retreat track 50: Water entry Side valve unit 51 ... Upstream water supply line 52 ... Strainer 53 ... Check valve 54 ... Pressure regulating valve 55 ... Solenoid valve 56 ... Relief valve 56a ... First washing water outlet line 56b ... Second washing water outlet line 60 ... Heat exchange unit 61 Heater 62 Tank 63 Vacuum breaker 65 Flow control switching valve 65 Solenoid valve 70 Wave generation unit 71 Flow path switching valve 71a Casing 71b Stator 71c Rotor 71d Coupling 71e Housing 71f Spring 71g Communication hole 71j Notch 71k Drive motor 71m Slit 71n Rotating shaft pin 71q Rotating key 71r Slit 71s Connection joint 72 Downstream water supply line 73 Accumulator 73a Housing 73b Damper chamber 73c: Damper 73d: Spring 74: Wave generator 4a: Cylinder 74b: Plunger 74c: Electromagnetic coil (pulsation generating coil) 74d: Upstream / downstream spring 74f: Check valve 75: Flow control switching valve 75a: Drum casing 75b: Drum 75c: Water supply groove 77: Flow control switching Valve 79 Drying unit 80 Electronic control unit 81 Bottom detection circuit 82 Comparator 83 Capacitor 84 Resistor 85 Detection resistor 86 Switching transistor 100 Local cleaning device 110 Local cleaning device 112 Nozzle device 114 Ass Cleaning nozzle 116 ... bidet cleaning nozzle 120 ... local cleaning device 122 ... pressurizing device 124 ... flow regulating valve 126 ... intermittent flow generating unit 128 ... intermittent valve 128a ... motor 128b ... valve body 128c ... housing 128d ... valve body flow path 128e: valve flow path 128f: inclined portion 130 ... local cleaning device 140 ... cleaning nozzle 140A ... cleaning nozzle 140a ... cylindrical part 140b ... upper compartment 142 ... nozzle head 142A ... nozzle head 142B ... nozzle head 142C ... nozzle head 146 ... air piping 149 ... air pump 150 ... air Flow control valve 154 ... Orifice 157 ... Outside air introduction passage 160 ... Outside air introduction tube 161 ... Nozzle head 162 ... Outside air entrainment chamber 163 ... Orifice 164 ... Outside air introduction passage 170 ... Nozzle head 171 ... Washing water vortex chamber 175 ... Wash nozzle 176 ... Solenoid Pump 176a ... Suction side check valve 176b ... Discharge side check valve 176c ... Electromagnetic solenoid 176d ... Plunger 176e ... Pump chamber 180 ... Washing nozzle 181 ... Nozzle flow path 182 ... Air mixing chamber 183 ... Porous pipe 184 ... Empty Passage 185 ... air feeding contaminated units 186 ... washing water supply unit BT ... toilet SS16a ... incoming water temperature sensor SS16b ... out temperature sensor SS18 ... float switch SS30 ... fall detection sensor SS14 ... washing water sensor

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Nobuyuki Kawahara 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-city, Fukuoka Prefecture Inside Totoki Equipment Co., Ltd. (72) Haruo Tsutsui Nakajima, Nakajima-ku, Kitakyushu-shi, Fukuoka Prefecture 2-chome No. 1-1 Totoki Kiki Co., Ltd. F-term (reference) 2D038 AA00 JB02 JB05 JF00 JF04 JF06 JH12 JH22

Claims (13)

[Claims] 1. A human body cleaning apparatus for discharging washing water to a human body to wash the human body, comprising a water discharging hole for discharging the cleaning water and a first water supply path leading to the water discharging hole, and discharging the cleaning water from the water discharging hole. A water discharging means, a deriving means including a second water supply path branched from a branch point of the first water supply path, for deriving wash water to a part other than the body part to be discharged, and a washing water guide to the first water supply path. Adjusting means for adjusting the amount of wash water in the first water supply path after the branch point using the washing water guide to the second water supply path and adjusting the amount of wash water discharged from the water discharge hole. A human body washing device characterized by the above-mentioned. 2. The human body cleaning apparatus according to claim 1, wherein the deriving unit directs a destination of the cleaning water from the second water supply path to a part of the human body cleaning apparatus that receives scattered waste water. Cleaning equipment. 3. The human body cleaning device according to claim 2, wherein the deriving unit reforms the cleaning water derived from the second water supply path into cleaning water that performs a sterilizing / sterilizing action on fungi. A human body washing device having means. 4. The human body cleaning device according to claim 2, wherein the second water supply path of the deriving unit is in a non-water discharging period in which the cleaning water is not discharged from the water discharging hole by the water discharging unit. A human body washing device, comprising: means for supplying washing water to the body. 5. The human body cleaning device according to claim 1, wherein the adjusting unit has a unit that adjusts an opening ratio of the first and second water supply paths. 6. The human body washing apparatus according to claim 1, further comprising a hot water means for warming the wash water in the middle of the first water supply path, wherein the second water supply path of the outlet means is provided with the hot water means. A human body cleaning device that is branched from the first water supply path on a more upstream side. 7. The human body cleaning device according to claim 1, wherein the water discharger changes a flow of the wash water in the first water supply path downstream of a branch point of the second water supply path. And a variable water discharging means for discharging the cleaning water from the water discharging hole in a state where the flow of the cleaning water fluctuates. 8. The human body cleaning apparatus according to claim 7, wherein the variable water discharge means is provided in the first water supply path, and air formed so as to be able to mix air from outside into the first water supply path. An aeration unit connected to the aeration unit, forcing the air to fluctuate in pressure or flow rate, forcibly mixing the air from the aeration unit, and causing the variation in the flow of the washing water in the aeration unit; Means for cleaning a human body, comprising: 9. The human body washing apparatus according to claim 1, further comprising a hot water means for warming the washing water, wherein the first water supply path and the second water supply path are branched downstream from the hot water means. There is a human body washing device. 10. The human body cleaning device according to claim 9, wherein the deriving unit directs a destination of the cleaning water from the second water supply path to a part of the human body cleaning device that receives scattering of sewage. Cleaning equipment. 11. The human body cleaning device according to claim 10, wherein the deriving unit reforms the cleaning water derived from the second water supply path into cleaning water that performs a sterilizing / sterilizing action on fungi. A human body washing device having means. 12. The human body cleaning device according to claim 10, wherein the second water supply path of the deriving unit is in a non-water discharging period during which cleaning water is not discharged from the water discharging hole by the water discharging unit. A human body washing device, comprising: means for supplying washing water to the body. 13. The human body cleaning device according to claim 9, wherein the adjusting unit has a unit that adjusts an opening ratio of the first and second water supply paths.