JP2000080711A - Toilet seat having bowl washing function and toilet equipped therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toilet seat having a bowl washing function and a toilet equipped therewith capable of preventing the toilet seat equipped with a function for washing a bowl section of a western style water closet such as flush type, siphon type, siphon jet type, etc., and the toilet equipped therewith from being stained with washing water drips. SOLUTION: A toilet seat main body 121 forming a toilet seat 120 is mounted on the upper part of a bowl section 111 of a toilet main body 110. A toilet seat base section 122 forming the toilet seat 120 is mounted in the depth of the toilet main body 110, and it is equipped with a holding section for holding rotatably the toilet seat main body 121. Then, a bowl-washing spreader 123 is provided in the vicinity of the center of the rotation to prevent the the bowl washing function attached toilet seat and toilet equipped therewith from being stained with washing water drips.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet seat having a function of washing a bowl portion of a Western flush toilet such as a wash-down type, a siphon type, a siphon set type, and a toilet having the same.

[0002]

2. Description of the Related Art FIG. 9A is a side sectional view showing an example of a conventional toilet bowl body of a Western-style flush toilet, and FIG. 9B is a plan view thereof. The toilet body 1 has a configuration in which a supply / drainage unit 16 is disposed at a rear portion of the bowl unit 10. Inside the bowl portion 10, a filth receiving surface formed of a pool surface 11a located below the surface of the pool portion W and a dry surface 11b formed continuously with the pool surface 11a and located above the water surface. 11 are formed. A rim portion 12 is formed at the periphery of the upper opening of the bowl portion 10. Rim 12
Are rim water passages 12b provided inside the inner peripheral wall 12a, and a large number of water discharge holes 1 formed in the lower part of the rim water passage 12b toward the waste receiving surface 11.
3 and has a substantially constant width. Supply and drainage section 1
6, a water supply hole 16a communicating with a water supply source (not shown), a water conduit 16b communicating the water supply hole 16a with the rim water passage 12b, and a drainage channel 16d communicating with a drainage port 16c are formed.

[0003] The bowl portion 1 of the toilet bowl body 1 having such a configuration.
To explain the washing flow path 0, the washing water supplied from the water supply source flows from the water supply hole 16a to the rim water passage 12b through the water passage 16b, and then as shown by the arrow in FIG. The sewage receiving surface 11 is washed by being discharged from the water discharge hole 13 on the lower surface of the rim portion 12 to the sewage receiving surface 11. The washing water that has washed the waste receiving surface 11 is discharged from the drain 16c through the drain 16d. As described above, the spout 13
Is discharged from the bowl portion 10 radially and vigorously from the outer peripheral portion to the inner peripheral portion of the bowl portion 10, so that particularly the dirt on the dirt receiving surface 11 can be reliably washed away.

FIG. 10 (A) is a side sectional view showing another example of a conventional toilet body of a Western-style flush toilet, and FIG.
It is the top view. This toilet body 2 basically has the configuration shown in FIG.
Has the same configuration as that of the toilet body 1 shown in FIG. The toilet body 2 is provided with a Z water conduit 14 that extends from the inside of the waste receiving surface 11 to the lower part.
In addition, the configuration is different from that of the toilet body 1 shown in FIG. 9 in that a jet water discharge hole 15 is provided. Z waterway 1
Reference numeral 4 is branched from a part of the rim water passage 12b.

[0005] The bowl portion 1 of the toilet body 2 having such a configuration.
To explain the washing flow path of No. 0, the washing water supplied from the water supply source flows from the water supply hole 16a to the rim water passage 12b and the zet water passage 14 through the water passage 16b, and then, as shown in FIG. As shown by the arrows, the water is discharged from the water discharge holes 13 to the waste receiving surface 11 to clean the waste receiving surface 11. A part of the washing water is discharged from the jet water discharge hole 15 to the drain passage 16d. The washing water that has washed the waste receiving surface 11 and the washing water that has been discharged to the drainage passage 16d are discharged from the drainage port 16c through the drainage passage 16d.

As described above, the cleaning water discharged from the water discharge hole 13 flows radially and vigorously from the outer peripheral portion of the bowl portion 10 toward the inner peripheral portion, so that particularly the dirt on the dirt receiving surface 11 is surely washed away. In addition, the washing water discharged from the jet water discharge hole 15 flows straight and vigorously from the bottom of the bowl portion 10 toward the drain passage 16d, so that the dirt accumulated in the reservoir water portion W is surely flowed. be able to.
Each of the above-mentioned toilet bodies 1, 2 is made of pottery,
Because the surface is rough, it absorbs water even though it is a small amount and it becomes unsanitary, so apply a glassy glaze to the surface of the pottery and finish the surface, lose water absorption and ensure hygiene ing.

However, in the above-described flush channel structure of the toilet bodies 1 and 2, it is necessary to form the rim portion 12 having a complicated shape provided with the rim water passage 12b and the water discharge hole 13. In particular, the rim water passage 12b has a complicated shape with the lower surface protruding inside the bowl portion 10. Therefore, since the glaze is difficult to apply to the lower surface of the rim portion 12, it is easy for bacteria and dirt to adhere thereto, which is a source of odor. Further, the lower surface of the rim portion 12 is a blind spot from the user. Because of the depression, cleaning is difficult and hygiene is impaired. Further, since a large number of water discharge holes 13 and the like must be formed on the lower side surface of the rim portion 12 as described above, the manufacturing process is complicated, which is a factor of increasing the manufacturing cost.

In view of this, for example, a Western-style flush toilet as shown in FIG. 11 described in Japanese Patent Application Laid-Open No. 8-140896 has been proposed. In the flush toilet 3, the toilet seat 30 having a function of cleaning the bowl portion 21 of the toilet main body 20 includes the toilet seat 2.
0. Toilet body 20
The rim 12 provided on the toilet body 1 or 2 in FIGS. 9 and 10 is not provided on the periphery of the upper opening of the bowl 21, and the upper opening edge of the bowl 21 is It is merely a relatively thin plate-like structure between the inner wall 22 and the outer wall 23.

The toilet seat 30 includes a toilet seat body 31 and a toilet seat base 3.
3. It is roughly composed of a local cleaning nozzle 34. The toilet seat body 31 is formed in an annular shape having substantially the same shape as the upper opening edge of the bowl portion 21, and the lower surface of the toilet seat body 31 is placed on the upper opening edge of the bowl portion 21. The upper edge of the toilet seat body 31 is a seating portion on which a user sits. The back of the toilet seat main body 31 is rotatably mounted on a shaft mounting portion provided on the toilet seat base 33, and the toilet seat main body 31 can be turned upside down by rotating at the shaft mounting portion. ing.
Further, a hollow portion (not shown) communicating with the water supply passage in the toilet seat base 33 is formed inside the toilet seat body 31.
A large number of water discharge holes 32 communicating with the hollow portion are formed in the lower part of the toilet seat body 31. The local cleaning nozzle 34 has a function of cleaning a local part of the human body with cleaning water, and includes a toilet seat base 33.
It is communicated with a water supply passage inside and is disposed so as to be able to enter and exit the bowl portion 21.

The washing flow path of the toilet body 20 having such a configuration will be described. The washing water supplied from the water supply source flows through the water supply passage in the toilet seat base 33 to the hollow portion of the toilet seat body 31. Then, the wastewater is discharged from the water discharge hole 32 to the waste receiving surface of the bowl portion 21 to clean the waste receiving surface. Then, the washing water that has washed the filth receiving surface is discharged from a drain port through a drain channel. As described above, the flush water is discharged from the water discharge holes 32 provided in the toilet seat main body 31, so that it is not necessary to provide the rim portion 12 provided in the toilet main bodies 1 and 2 of FIGS. . Therefore, the upper opening edge of the bowl portion 21 has a simple shape, so that the above glaze can be easily applied, and it is possible to prevent adhesion of various bacteria and dirt, as well as to facilitate cleaning and ensure hygiene. it can. Further, the manufacturing process is simplified, and the manufacturing cost can be reduced.

[0011]

However, FIG.
In the structure of the conventional flush toilet 3 shown in FIG. 1, after flush water is discharged from the water discharge hole 32 of the toilet seat body 31 into the bowl portion 21,
Some of the washing water may remain in the vicinity of the water discharge holes 32. When the toilet seat main body 31 is rotated and raised in such a state, the remaining washing water drips and adheres to the lower surface of the toilet seat main body 31 and the outer wall 23 of the toilet main body 20 from the water discharge hole 32, which is preferable in terms of sanitation. There is a drawback that there is no need for this, and extra cleaning is required.

The present invention relates to a toilet seat having a function of washing a bowl portion of a Western flush toilet such as a wash-down type, a siphon type, a siphon set type, and a toilet having the same.
An object of the present invention is to provide a toilet seat with a bowl washing function and a toilet bowl having the same, which can prevent contamination due to washing water dripping.

[0013]

Means for Solving the Problems In order to solve the above-mentioned problems, a toilet seat with a bowl washing function of the present invention is a pivotable toilet seat in a Western style toilet, and
A spreader for cleaning a bowl portion of the toilet body is provided. Further, in order to solve the above-mentioned problem, a toilet having a toilet seat with a bowl washing function according to the present invention is a Western-style toilet having a rotatable toilet seat, wherein a bowl portion of a toilet body is washed near a center of rotation. A spreader is provided.

Since the spreader for cleaning the bowl portion is arranged near the center of rotation of the toilet seat, when the toilet seat body is erected after use of the spreader, even if washing water drips from the spreader, the spreader is surely inserted into the bowl portion. The washing water is contained and can be prevented from being contaminated by the dripping of the washing water to the outside of the bowl portion.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION A toilet seat with a bowl washing function according to an embodiment of the present invention comprises: a toilet seat body mounted on an upper portion of a bowl portion of a toilet body; A toilet seat base having a holding portion for movably holding the toilet seat base, wherein the toilet seat base is provided with a bowl washing spreader. A toilet having a toilet seat with a bowl washing function according to an embodiment of the present invention includes: a toilet seat body mounted on an upper portion of a bowl portion of the toilet body; and a toilet seat mounted on a back portion of the toilet body to rotatably hold the toilet seat body. A toilet seat having a toilet seat having a holding portion, and a toilet seat having the toilet seat, wherein a bowl cleaning spreader is provided on the toilet seat base.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a toilet having a Western-style toilet seat with a bowl washing function according to one embodiment of the present invention.
(A) and (B) are a side sectional view and a plan view showing the structure. The flush toilet 100 of this embodiment is provided with a toilet seat body 121, a toilet seat base 122, a bowl washing spreader 123, a local washing nozzle 124, and the like on an upper part of a toilet body 110 having a bowl portion 111 and a supply / drainage portion 116. The configuration is such that possible toilet seats 120 are arranged.

At the periphery of the upper opening of the bowl portion 111, the rim portion 1 provided on the toilet body 1, 2 shown in FIGS.
2 is not provided, and the upper opening edge of the bowl portion 111 is merely a relatively thin plate-shaped structure between the inner wall 112 and the outer wall 113. Inside the bowl portion 111, a pool surface 114a located below the water surface of the pool portion W, and the pool surface 1a
Dry surface 1 formed continuously with 14a and located on the water surface
14b is formed. The bottom of the bowl portion 111 has a jet water discharge hole 115 formed therein. The water supply / drain section 116 has a water supply pipe 1 communicating a water supply source (not shown) and the jet water discharge hole 115.
17 and a drainage channel 1 communicating with a drainage port 118.
19 are formed.

The toilet seat body 121 is formed in an annular shape substantially the same shape as the upper opening edge of the bowl portion 111.
The lower surface of 21 is placed on the upper opening edge of the bowl 111. The upper edge portion of the toilet seat body 121 is a seating portion on which a user sits. And the back of the toilet seat body 121 is the toilet seat base 1.
The toilet seat main body 121 is rotatably held by a holding portion provided in the toilet seat 22 and can be turned upside down by being rotated by the holding portion. The toilet seat base 122 includes a local cleaning device for cleaning a local part of a human body, a water supply source, a bowl cleaning spreader 123, and a local cleaning nozzle 1 of the local cleaning device.
A water supply channel and the like communicating with the power supply 24 are built in. The bowl cleaning spreader 123 has a function of cleaning the bowl portion 111 with cleaning water, and communicates with a water supply passage in the toilet seat base 122. The spreader 123 is disposed at two places on both sides of the toilet seat base 122 below the center of rotation of the toilet seat main body 121 so as to protrude into the bowl portion 111. The local cleaning nozzle 124 has a function of cleaning a local part of a human body with cleaning water, and is connected to a water supply passage in the toilet seat base 122. The nozzle 124 is disposed between the two bowl cleaning spreaders 123 so as to be able to enter and exit the bowl portion 111.

With such a configuration, the edge of the upper opening of the bowl portion 111 does not become a hollow that forms a blind spot as in the related art, but has a simple shape. Therefore, bowl part 1
It is easy to apply glaze to each part of 11, it is possible to prevent adhesion of various bacteria and dirt, and it is easy to clean and secure hygiene. In addition, bowl washing spreader 1
23, a large number of water discharge holes 13 as in the prior art.
There is no need to form such a process, so that the manufacturing process is simplified and the manufacturing cost can be reduced.

Here, the detailed structure of the bowl cleaning spreader 123 will be described with reference to FIG. The bowl cleaning spreader 123 is formed in a substantially rectangular parallelepiped with one end bent at approximately 90 degrees. The surface of the spreader 123 facing the bowl opening is provided with a horizontal discharge hole 123a for discharging the washing water horizontally along the inner peripheral curved surface of the upper opening of the bowl portion 111. A lower discharge hole 12 for discharging the washing water downward along the inner peripheral curved surface of the lower portion of the bowl portion 111 is formed in a surface facing the bottom of the bowl.
3b is provided. The lower discharge hole 123b is provided in the lower end surface so as to extend horizontally. Further, a water supply hole 123 communicating with a water supply passage in the toilet seat base 122 is provided substantially at the center of the surface of the spreader 123 joined to the toilet seat base 122.
c is provided.

The horizontal cleaning holes 123a and the vertical discharging holes 123b are provided inside the bowl cleaning spreader 123.
Water supply passages 123d and 123 communicating the water supply holes 123c
e is provided. The bowl cleaning spreader 123 shown in this figure is arranged on the left side when viewed from the front of the bowl part 111, and the bowl cleaning spreader 123 arranged on the right side has a horizontal discharge hole 123a having one end opposite to that shown in FIG. Is provided. Thus, the horizontal discharge holes 123a
Is provided at one end of the side surface. Since the water supply hole 123c is provided substantially at the center of the end face, when the washing water passes through the water supply passage 123d from the water supply hole 123c, a predetermined angle is formed in the horizontal direction, and the washing water is supplied from the horizontal discharge hole 123a to the bowl 111. The liquid is discharged to the inner peripheral surface of the upper opening. Accordingly, the washing water flows along the inner peripheral curved surface of the upper opening of the bowl portion 111 as shown by the arrow b in FIG.

FIG. 4 is a diagram showing an example of a waterway system of the flush toilet 100 of the present embodiment. In the example shown in FIG. 2A, the flush water supplied from the water supply source 130 is temporarily stored in the low tank 150 disposed near the flush toilet 100, for example, at the upper rear of the toilet seat base 122 via the branch tap 140. I do. The washing water stored in the low tank 150 is
The water is separately supplied to the jet water discharge hole 115, the bowl cleaning spreader 123, and the local cleaning nozzle 124. According to such a configuration, for example, the low tank 150
If a means for heating the washing water is provided, the low tank 1
The washing water once stored in 50 can be heated and supplied as warm water. Therefore, the cleaning action of the bowl 111 can be further enhanced, and the comfort when cleaning a local part of the human body can be enhanced.

Further, in the example shown in FIG.
The washing water supplied from 30 is distributed and supplied to the low tank 150, the bowl washing spreader 123 and the local washing nozzle 124 via the branch tap 140. Then, the washing water stored in the low tank 150 is supplied to the jet water discharge hole 115. According to such a configuration,
For example, since the switching of the branch tap 140 can be configured to be operable by the user, the supply of the cleaning water to the jet discharge port 115, the bowl cleaning spreader 123, and the local cleaning nozzle 124 can be performed independently. The effect can be enhanced.

The cleaning operation of the flush toilet 100 configured as described above will be described below. Wash water supplied from the water supply source 130 is supplied to the low tank 150
Is once stored. When the user operates, for example, a bowl cleaning lever or a bowl cleaning push button provided on the toilet seat base 122 after use, the low tank 150 is operated.
The washing water stored in the bowl flows through the water supply passage in the toilet seat base 122 to the bowl washing spreader 123. At the same time, the water in the low tank 150 is
Through the water supply pipe 117 from the water supply channel inside
Flow to 5. The cleaning water supplied to the bowl cleaning spreader 123 is supplied from the water supply holes 123c to the respective water supply passages 123d, 1d.
After being distributed to 23e, the liquid is discharged almost horizontally from the horizontal discharge holes 123a. The horizontally discharged water flows while turning from both sides along the inner peripheral curved surface of the upper opening of the bowl portion 111 as shown by an arrow b in FIG.
Wash 4 Thereafter, a horizontal swirling flow is generated in the water storage portion W, and the floating dirt and the like are pushed into the substantially central portion of the water storage portion W.

At substantially the same time, the cleaning water is supplied to the vertical discharge holes 123.
2, and is discharged while flowing along the inner peripheral curved surface of the lower portion of the bowl portion 111 as shown by an arrow c in FIG. The convection in the vertical direction is generated in the section W, and the floating dirt and the like are pushed into the bottom of the reservoir section W. On the other hand, the washing water supplied to the jet water discharge hole 115
1 flows straight from the bottom toward the drainage channel 119. Therefore, the waste receiving surface 1 discharged from the horizontal discharge hole 123a
14 and the cleaning water discharged from the vertical discharge holes 123b and cleaning the lower surface of the bowl cleaning spreader 123, which is behind the ZET discharge holes 11 together with dirt.
The washing water discharged from the nozzle 5 is discharged from the drain 118 through the drain 119.

As described above, the cleaning water discharged from the horizontal discharge hole 123a swirls from both sides of the inner periphery of the upper opening of the bowl portion 111 and flows vigorously.
14 can be reliably washed away. On the other hand, the cleaning water discharged from the vertical discharge holes 123b can surely wash away the dirt attached to the surface that is difficult to clean with the cleaning water discharged from the horizontal discharge holes 123a. Further, the cleaning water discharged from the jet water discharge hole 115 flows straight and vigorously at the bottom of the bowl portion 111, so that the dirt accumulated in the water storage portion W can be reliably flowed.

FIG. 5 is a perspective view showing the detailed structure of another bowl cleaning spreader usable for the flush toilet 100 of this embodiment. The bowl cleaning spreader 125 is formed in a substantially rectangular parallelepiped shape having one end bent at approximately 90 degrees. One side 125c forming the bent portion is provided with cleaning water with respect to the inner peripheral surface of the upper opening of the bowl portion 111. A first horizontal discharge hole 125a for discharging the liquid horizontally slightly below is provided. On the other hand, a plurality of second horizontal discharge holes 125b are provided in the horizontal direction at the lower end of the bent portion front face 125d. These second horizontal discharge holes 125b are, in order from the side closer to the first horizontal discharge holes 125a, holes for discharging cleaning water horizontally along the inner peripheral curved surface of the upper opening of the bowl portion 111, and washing water for the bowl portion. A hole for discharging the cleaning water to the filth receiving surface 114 of the bowl 111, and a hole for discharging the rinsing water to the filth receiving surface 114 of the bowl 111, and a little more than the filth receiving surface 114 of the bowl 111. It is formed by changing the ejection angle and direction, such as a hole to be ejected downward.

Although not shown, similar to the bowl washing spreader 123 of FIG. 3, the end face of the bent portion, that is, substantially the center of the surface joined to the toilet seat base 122, communicates with the water supply passage in the toilet seat base 122. Water supply holes are provided. Further, the first horizontal discharge hole 125a and the second horizontal discharge hole 125 are provided inside the bowl cleaning spreader 125.
There is provided a water supply passage communicating between b and the water supply hole. The bowl washing spreader 125 shown in FIG.
The bowl cleaning spreader 125 is disposed on the left side when viewed from the front of the apparatus 1, and the first horizontal discharge hole 125 a is provided on the side surface opposite to that in FIG. 5 in the bowl cleaning spreader 125. According to such a configuration, the same operation and effect as the bowl cleaning spreader 123 in FIG. 3 can be obtained by the second horizontal discharge holes 125b, and the bowl cleaning spreader shaded by the bowl cleaning spreader 125 by the first horizontal discharge holes 125a. The inner peripheral surface of the upper opening of the bowl portion 111 on the side of 125 can also be reliably cleaned.

FIG. 6 is a perspective view showing the detailed structure of yet another bowl cleaning spreader usable for the flush toilet 100 of this embodiment. This bowl washing spreader 126
Is formed in a substantially rectangular parallelepiped shape in which both ends are bent in the opposite direction at substantially 90 degrees. Three horizontal discharge holes 126a, 126b and 126c are provided on the lower end surface of the bent portion. The horizontal discharge holes 126a allow the cleaning water to flow through the bowl 11
1 is discharged horizontally along the inner peripheral curved surface of the upper opening.
The horizontal discharge 126b discharges the cleaning water to the waste receiving surface 114 of the bowl portion 111. The horizontal discharge holes 126c discharge the cleaning water slightly below the waste receiving surface 114 of the bowl portion 111. That is, a plurality of discharge holes are formed in the horizontal direction by changing the discharge angle and direction.

Although not shown, similar to the bowl washing spreader 123 in FIG. 3, the water supply passage in the toilet seat base 122 is provided at the end face of the other bent portion, that is, substantially at the center of the surface joined to the toilet seat base 122. A water supply hole communicating with is provided. Further, inside the bowl cleaning spreader 126, a water supply path is provided for communicating the horizontal discharge holes 126a to 126c with the water supply holes. The bowl cleaning spreader 126 shown in this figure is disposed on the left side when viewed from the front of the bowl portion 111. The bowl cleaning spreader 126 disposed on the right side has a horizontal discharge hole 126a on the side of the horizontal discharge hole 126c in FIG. Position. According to such a configuration, the same operation and effect as the bowl cleaning spreader 123 of FIG. 3 can be obtained by the horizontal discharge holes 126a, and the horizontal discharge holes 126a to 126c are formed concentrated on one end surface, so that the size can be reduced. It is particularly effective for small flush toilets.

FIG. 7 is a perspective view showing the detailed structure of the bowl washing spreader formed separately from the toilet seat base 122 of the flush toilet 100 of this embodiment. The bowl cleaning spreader 127 has a configuration in which a spreader 127b similar to the bowl cleaning spreader 123 having the configuration shown in FIG. 3 is integrally formed on a mounting plate 127a that is disposed and attached between the toilet body 110 and the toilet seat base 122. Has become. That is, the spreader 127 is formed in a substantially rectangular parallelepiped with one end bent at substantially 90 degrees. Mounting plate 12
On the upper surface of 7a, a water supply hole 127c communicating with a water supply passage in the toilet seat base 122 or the local cleaning device is provided.
On the surface facing the inner peripheral surface of the bowl portion 111, a horizontal discharge hole 127d for horizontally discharging the cleaning water along the inner peripheral curved surface of the upper opening of the bowl portion 111 is provided. In addition, a lower discharge hole 127e for discharging the washing water downward along the inner peripheral curved surface of the lower portion of the bowl portion 111 is provided on substantially the entire lower end surface facing the bottom of the bowl portion 111. Further, water supply passages 127f and 127g that connect the water supply holes 127c with the horizontal discharge holes 127d and the vertical discharge holes 127e are provided inside from the mounting plate 127a to the spreader 127b. The mounting plate 127a is provided with mounting holes 127h through which bolts for fixing the toilet body 110 and the toilet seat base 122 are passed. According to such a configuration, it is possible to cope with an existing flush toilet with a local cleaning device, and it is possible to suppress unnecessary expenses for the user.

The cleaning water discharged from the bowl cleaning spreaders 123, 125, 126, and 127 described in each of the above-described embodiments is used for cleaning the bowl portion 111, and the cleaning water is discharged as warm water. By doing
It can also be used to warm the toilet seat body 121. That is, the bowl washing spreaders 123, 125, 1
The washing water discharged from the toilet seats 26 and 127
Since the water flows along the inner periphery of the upper opening of the bowl part 111 in the vicinity, the toilet seat body 121 is warmed by using radiant heat or the like at that time. However, since the user normally discharges cleaning water from the bowl cleaning spreaders 123, 125, 126, and 127 after use, the toilet seat main body 121 is used at that time.
The user does not benefit from warming, and the user can use the bowl cleaning spreader 123, 125, 12 during use.
It is troublesome to discharge the cleaning water from 6, 127.

Therefore, the toilet seat main body 121 is provided with a seating detection sensor of a capacitance type, an infrared type or the like for detecting a seating state of the user, and the bowl washing spreader 1 is provided.
A spreader switch such as an electromagnetic valve that turns on the water supply for a certain time when a detection signal from the seating detection sensor is input to 23, 125, 126, or 127 is provided. This allows the user to automatically and immediately wash the bowl cleaning spreaders 123, 125, and 12 immediately before use.
The flush water is discharged from 6, 127 to warm the toilet seat body 121, and a water film is formed on the inner wall of the bowl portion 111 by the discharge immediately before use, so that an effect of preventing adhesion of dirt and the like also occurs. Further, by providing the above-mentioned sensor and the like, the cleaning water is automatically discharged from the bowl cleaning spreaders 123, 125, 126 and 127 even after use, so that the user's labor can be further reduced.

FIG. 8 is a time chart showing an operation example of the seating detection sensor and the spreader switch. At the time t1, when the user sits on the toilet seat body 121, the seating detection sensor is turned on and the spreader switch is turned on. Become. Then, the washing water is discharged from the bowl washing spreaders 123, 125, 126, and 127 until time t2, and the toilet seat body 121 is warmed. Next, at the time t3, at the same time when the user separates from the toilet seat main body 121, the seating detection sensor is turned off and the spreader switch is turned on.
Cleaning water is discharged from 25, 126, 127, and the bowl 111 is cleaned. At this time, the cleaning water may be automatically discharged from the jet water discharge hole 115. Note that a sensor that detects that the user has entered the toilet may be provided instead of the seating detection sensor that detects the user's sitting state. Further, a circulating water channel is provided in the toilet seat main body 121 so that the washing water is supplied to the bowl washing spreader 12.
The toilet seat main body 121 can be more efficiently warmed by a configuration in which the toilet seat body 121 is once passed through the circulating water passage before being discharged from 3, 125, 126, or 127. The present invention can be applied to a Western flush toilet such as a wash-down type, a siphon type, and a siphon jet type.

[0035]

As is apparent from the above description, according to the present invention, the edge of the upper opening of the bowl portion does not have a hollow like conventional blind spots, but has a simple shape. It is easy to apply a glaze, can prevent adhesion of various germs and dirt, and can easily clean and ensure hygiene. In addition, since it is not necessary to form a large number of water discharge holes as in the related art, the manufacturing process is simplified, and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a toilet having a Western-style toilet seat with a bowl washing function according to an embodiment of the present invention.

FIG. 2 is a side sectional view and a plan view showing a structure of a toilet having the toilet seat with a bowl washing function of FIG. 1;

FIG. 3 is a three-side view showing a detailed structure of a bowl cleaning spreader of a toilet having the toilet seat with a bowl cleaning function of FIG. 1;

FIG. 4 is a diagram showing an example of a water channel of the flush toilet of the present embodiment.

FIG. 5 is a perspective view showing the detailed structure of another bowl cleaning spreader usable for the flush toilet of the embodiment.

FIG. 6 is a perspective view showing a detailed structure of still another bowl cleaning spreader usable for the flush toilet of the embodiment.

FIG. 7 is a perspective view showing a detailed structure of a bowl cleaning spreader formed separately from a toilet seat base of the flush toilet of the present embodiment.

FIG. 8 is a time chart showing an operation example of a seat detection sensor and a spreader switch of the flush toilet of the embodiment.

FIG. 9 is a side sectional view and a plan view showing an example of a toilet body of a conventional Western flush toilet.

FIG. 10 is a side sectional view and a plan view showing another example of a toilet body of a conventional Western flush toilet.

FIG. 11 is a perspective view showing an example of a conventional Western-style flush toilet.

[Explanation of symbols]

REFERENCE SIGNS LIST 100 flush toilet 110 toilet body 111 bowl portion 112 inner wall 113 outer wall 114a pool surface 114b dry surface 114 waste receiving surface 115 jet water outlet 116 supply / drain portion 117 water supply pipe 118 drain port 119 drainage channel 120 toilet seat 121 toilet seat body 122 toilet seat base , 125, 126, 127 Bowl cleaning spreader 124 Local cleaning nozzle 123a Horizontal discharge hole 123b Vertical discharge hole 123c Water supply hole 123d, 123e Water supply path 130 Water supply source 140 Branch tap 150 Low tank

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Noboru Niihara 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Touchi Kiki Co., Ltd. 1-1-1 Toto Kiki Co., Ltd. (72) Inventor Kenichiro Aoyama 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Prefecture Toto Kiki Co., Ltd. (72) Inventor Masato Kurihara Kokura, Kitakyushu-shi, Fukuoka 2-1-1 Nakajima, Kita-ku To-Toki Equipment Co., Ltd. F-term (reference) 2D039 AA02 AC00

Claims (11)

[Claims] 1. A toilet seat with a bowl washing function, comprising: a pivotable toilet seat in a Western style toilet, wherein a spreader for washing a bowl portion of a toilet body is provided near a center of rotation. 2. A toilet seat body mounted on an upper portion of a bowl portion of a toilet body, and a toilet seat base mounted on a back portion of the toilet body and having a holding portion rotatably holding the toilet seat body. A toilet seat with a bowl washing function, wherein a bowl washing spreader is provided at a base of the toilet seat. 3. The toilet seat base further includes a local cleaning device for cleaning a local part of a human body, wherein the cleaning nozzle of the local cleaning device is disposed at the center of the toilet seat base, and the bowl cleaning spreader is disposed on both sides of the cleaning nozzle. The toilet seat with a bowl washing function according to claim 2, wherein 4. A horizontal discharge hole for discharging the flush water along an inner peripheral curved surface of an upper opening of a bowl portion of the toilet body, and an inner peripheral curved surface of a lower portion of the bowl portion. 4. A toilet seat with a bowl washing function according to any one of claims 1 to 3, further comprising: a lower discharge hole for discharging along the line. 5. The toilet seat with a bowl washing function according to claim 1, wherein the bowl washing spreader discharges washing water for a predetermined time in conjunction with seating on the toilet seat. 6. The toilet seat according to claim 1, further comprising a hot water tank, wherein the bowl washing spreader discharges hot water from the hot water tank for a predetermined time to warm the toilet seat in conjunction with seating on the toilet seat. Toilet seat with bowl washing function as described. 7. The toilet seat with a bowl cleaning function according to claim 6, wherein the hot water from the hot water tank is once discharged into a water channel provided inside the toilet seat and then discharged from the bowl cleaning spreader. 8. A western-style toilet having a pivotable toilet seat, comprising a spreader for cleaning a bowl portion of a toilet body near a center of rotation. Toilet bowl. 9. A toilet seat body mounted on an upper portion of a bowl portion of a toilet body, and a toilet seat base mounted on a back portion of the toilet body and having a holding portion rotatably holding the toilet seat body. The toilet bowl having a bowl-washing function-equipped toilet seat according to claim 8, wherein the toilet bowl has a bowl-washing spreader provided at a base of the toilet seat. 10. A Western-style toilet having a pivotable toilet seat, wherein a spreader for washing a bowl portion of the toilet main body is provided at a location near the center of rotation and excluding the toilet main body side. A toilet bowl having a toilet seat with a bowl washing function. 11. The bowl cleaning function according to claim 8, wherein a water passage and a water discharge hole for cleaning the bowl portion are not provided at an upper opening edge of the bowl portion of the toilet body. Toilet with a toilet seat.