JP2007315060A - Water closet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water closet which can uniformly flush the whole of an inner surface of a bowl section by enabling water to descend onto the inner surface of the bowl section even in a position near a water ejection port for emitting a jet of water. <P>SOLUTION: This water closet 1 comprises the basin-like bowl section 10, a liquid passage 12, the inside of which is opened and which is provided in such a manner as to surround the bowl section 10 in a position of an upper end of the bowl section 10, and an ejection section 25 which can eject water or a liquid to the liquid passage 12. The liquid passage 12 is provided with an inflow section 26 into which the liquid ejected from the ejection section 25 can flow. The water closet 1 enables the liquid flowing through the liquid passage 12 to flow down to the inside of the bowl section 10 from an opened portion. Characteristically, the water or the liquid, which passes through the inflow section 26, partially flows down to the inside of the bowl section 10 near the inflow section 26. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a flush toilet.

  In conventional flush toilets, as a form of washing method of the inner surface of the bowl portion that receives excrement, flush toilets that wash away dirt attached to the inner surface of the bowl portion by allowing water to swirl around the inner surface of the bowl portion It has been known.

In Patent Document 1, a bowl portion and a water passage of a rim portion formed so as to go around the upper peripheral edge of the bowl portion are formed into a continuous curved surface, and water is supplied to the inner surface of the bowl portion through the water passage. In the flush toilet constructed as described above, a flush toilet is disclosed in which a water outlet is formed facing the water passage, and the water outlet is integrally formed of the same material as the inner surface of the bowl portion.
JP 2004-156308 A

  However, in the conventional flush toilet, the water outlet is arranged near the linear shape of the bowl part, so the water immediately after being discharged from the nozzle does not immediately hit the curved surface part of the bowl part, and in the vicinity of the water outlet. It was difficult to lower the washing water. Therefore, in the inner surface of the bowl portion, the vicinity of the spout is insufficiently cleaned, and it is difficult to uniformly clean the entire inner surface of the bowl portion.

  Therefore, in view of the above problems, the present invention can lower water to the inner peripheral surface of the bowl portion even in the vicinity of the water outlet from which water is ejected, and uniformly cleans the entire inner peripheral surface of the bowl portion. It is an object of the present invention to provide a flush toilet with a swirl flow cleaning method.

  In order to solve the above problems, in the invention of claim 1, a bowl-shaped bowl portion, a liquid passage that is provided so as to surround the bowl portion at the position of the upper end portion of the bowl portion, A discharge part capable of discharging water or liquid to the liquid passage, and an inflow part into which the liquid discharged from the discharge part can flow is provided in the liquid passage and flows through the liquid passage A flush toilet capable of dropping liquid from the open part to the inside of the bowl part, wherein water or a part of the liquid that has passed through the inflow part falls to the inside of the bowl part in the vicinity of the inflow part. It was.

  Thereby, since water can be lowered | hung also with respect to the inner surface of the bowl part near the water discharge port (inflow part) from which water is discharged | emitted, the said part can be wash | cleaned reliably. As a result, the entire inner peripheral surface of the bowl portion can be cleaned uniformly.

  In the flush toilet according to claim 1, the discharge unit includes a jetting unit capable of jetting water or liquid, and an adjusting unit for adjusting a flow of water or liquid jetted from the jetting unit. By adjusting the flow of water or liquid ejected from the discharge means by applying the water or liquid ejected from the discharge means to the adjustment means, a part of the water or liquid that has passed through the inflow section is near the inflow section. It may be characterized by falling to the inside of the bowl portion (claim 2).

  According to a third aspect of the present invention, in the second aspect of the present invention, the liquid passage has a peripheral wall facing the opened portion, and the adjusting means is a wall surface formed so as to be continuous with the peripheral wall. The jetting means is a nozzle, and an axis in the jetting direction of the nozzle intersects the wall surface.

  Since the wall surface as the adjusting means is continuous with the peripheral wall of the liquid passage, most of the water or liquid ejected from the nozzle can flow from the inflow portion to the liquid passage along the wall surface. In addition, since the axis of the nozzle ejection direction intersects the wall surface, the water or liquid ejected from the nozzle does not go directly to the inflow part, but bounces back or hits the wall surface. After being spread, such as by merging with, it is poured into the liquid passage. As a result, according to the third aspect of the present invention, a part of the water or liquid ejected from the nozzle can be reliably dropped to the inside of the bowl portion in the vicinity of the inflow portion.

  According to a fourth aspect of the invention, in the third aspect of the invention, the angle of the axis with respect to the wall surface is in the range of 5 to 60 degrees.

  If the angle at which water or liquid enters the wall surface is large, there is a high possibility that water or liquid will scatter. However, in the invention of claim 4, since this angle is limited to 5 to 60 degrees, it is possible to prevent the water or liquid from scattering when the ejected water or liquid enters the wall surface.

  In the present invention, water can be lowered to the inner surface of the bowl portion even in the vicinity of the spout from which water is ejected, so that the entire inner surface of the bowl portion can be washed uniformly.

  Then, the flush toilet concerning one Embodiment of this invention is demonstrated in detail, referring drawings. In the following description, unless otherwise specified, the positional relationship of the flush toilet, such as up and down, left and right, and front and rear, will be described based on the state facing the flush toilet.

  FIG. 1 is a side view showing the flush toilet of this embodiment. The flush toilet 1 is a so-called Western-style toilet, and has a configuration in which a toilet seat 3 and a cover 5 are attached to a toilet body 2 in the same manner as a conventionally known toilet.

  As shown in FIGS. 1 and 2, the toilet body 2 includes a bowl portion 10, a discharge portion 11, a rim portion 12 (fluid passage), and a washing water ejection portion 25 (discharge portion). The bowl portion 10 has a bowl shape with an upper surface opened. An opening 15 that functions as an outlet for discharging water (liquid) and filth collected in the bowl portion 10 from the bowl portion 10 is provided at the bottom of the bowl portion 10. The discharge portion 11 is connected to the opening 15 via a pipe.

  As shown in FIG. 1, the discharge unit 11 includes a movable unit 17 and an electromagnetic valve 18 in addition to the discharge port 16. The discharge port 16 is a portion to which piping connected to the sewer or the like is connected, and is open on the bottom surface of the toilet body 2. The movable portion 17 is a cylindrical portion through which water and filth can pass, and is inclined upward or downward with the operation of a power source (not shown) such as a motor. It becomes a state.

  As shown in FIG. 1A, the movable portion 17 is usually inclined so that the end portion faces upward. On the other hand, when a remote controller (not shown) or the like is operated when discharging water or filth collected in the bowl portion 10, a power source (not shown) is activated to move the movable portion 17 downward as shown in FIG. And the solenoid valve 18 opens. Thereby, the water and filth collected in the bowl part 10 can be discharged toward the discharge port 16.

  The rim part 12 is provided so as to surround the entire circumference of the bowl part 10 as shown in FIG. As shown in FIG. 3, the rim portion 12 is located at the upper end portion of the bowl portion 10, and is constituted by a groove having a substantially “U” -shaped cross section. The rim portion 12 is provided on the left back side of the toilet body 2 and constitutes a flow path (fluid passage) through which water supplied from the washing water ejection section 25 flows.

  More specifically, as shown in FIG. 3, the rim portion 12 is surrounded by the three surfaces of the top surface 20, the outer peripheral surface 21, and the bottom surface 22. 10 has an open portion 23 that opens toward the inside. The top surface 21 of the rim portion 12 is a portion that contacts the bottom surface of the toilet seat 3 described above. The outer peripheral surface 21 is a surface formed along the outer periphery of the toilet body 2.

  The bottom surface 22 of the rim portion 12 is at a position facing the above-described top surface 21, and is provided so as to surround substantially the entire circumference of the bowl portion 10 as shown in FIG. As shown in FIG. 3B, the bottom surface 22 is configured to have a downward slope toward the inside of the bowl portion 10.

  As shown in FIG. 4, the outer peripheral surface 21 on the left back side of the rim portion 12 has a water outlet 26 (inflow portion) that is an opening for supplying water to the rim portion 12. A washing water ejection part 25 is provided in the back.

  The size of the opening area of the water discharge port 26 is larger than the discharge port of the nozzle 13 described later, and the circumferential length of the water discharge port 26 is approximately the same as or larger than the width of the bottom surface 22 of the rim portion 12. It is.

  The washing water ejection part 25 has a nozzle 13 and an adjustment space 27. The adjustment space 27 is provided in the back of the water discharge port 26, and the nozzle 13 is installed in the back of the adjustment space 27. The nozzle 13 is connected to a water supply source and supplies water to the adjustment space 27. The adjustment space 27 is a space for adjusting the flow of water supplied from the nozzle 13, and includes an adjustment surface 30, a bottom surface 31, a top surface 32, a side surface 33, and a back surface 34 as shown in FIG. 4. ing.

  As shown in FIG. 2, the adjustment surface 30 is a concave curved surface that is continuous with the outer peripheral surface 21 of the rim portion 12. The bottom surface 31 is at a position facing the top surface 32. The bottom surface 31 is a flat surface that is continuous with the bottom surface 22 of the rim portion 12, and the top surface 32 is a flat surface that is continuous with the top surface 20 of the rim portion 12. The side surface 33 is a flat surface facing the adjustment surface, and the back surface 34 is a flat surface facing the water discharge port 26. The nozzle 13 is installed on the back surface 34 of the adjustment space 27.

  The nozzle 13 is installed such that the water ejection direction is inclined toward the adjustment surface 30. More specifically, as shown in FIG. 5, the water ejection direction of the nozzle 13 and the adjustment surface 30 intersect. The orientation of the nozzle 13 is adjusted so that it contacts the adjustment surface 30 near the water outlet 26 in the adjustment space 27.

  In addition, when the incident angle α between the adjustment surface 30 and the water ejected from the nozzle 13 is increased, the water is scattered by the momentum of the water, so the incident angle α is designed to prevent the water from scattering. More specifically, the incident angle α is desirably in the range of 5 to 60 degrees, and is approximately 20 degrees in the present embodiment.

  Then, the operation | movement at the time of wash | cleaning the bowl part 10 and the flow of water in the flush toilet 1 of this embodiment are demonstrated. In the flush toilet 1, by operating a remote controller (not shown) or the like, water for cleaning the bowl 10 is supplied from the water supply source to the nozzle 13, and the movable portion 17 of the discharge portion 11 is shown in FIG. The posture is changed from the posture facing upward as shown in a) to the posture facing downward as shown in FIG. At this time, the solenoid valve 18 of the discharge unit 11 is opened.

  As described above, when water is supplied from the water supply source to the nozzle 13, the water ejected from the nozzle 13 goes straight toward the adjustment surface 30 of the adjustment space 27. That is, the water ejected from the nozzle 13 does not go directly to the water discharge port 26, but once hits the adjustment surface 30 and bounces back to the adjustment space 27, or hits the adjustment surface 30 and merges with the water bounced back into the adjustment space 27. Etc., and expands in the adjustment space 27. The water spread in the adjustment space 27 is then energized by being pushed by the water ejected from the nozzle 13, and is discharged from the entire outlet 26.

  The adjustment surface 30 is formed as a concave curved surface that is continuous with the outer peripheral surface 21 of the rim portion 12. Most of the water ejected from the nozzle 13 is applied to the adjustment surface 30 and then smoothly flows downstream along the adjustment surface 30 formed as a concave curved surface and the outer peripheral surface 21 continuous therewith. On the other hand, part of the water that has passed through the spout 26 hits the adjustment surface 30, and the momentum of the water flow drops. Clean the surface.

  More specifically, the vicinity of the water discharge port 21 refers to a range of approximately 20% of the total circumference of the rim portion 12 from the water discharge port 21 toward the rim portion 12 downstream. At this time, the proportion of water descending along the inner peripheral surface of the bowl portion 10 in the vicinity of the spout 21 is approximately 20% of the water ejected from the nozzle 13.

  As described above, the water that has flowed into the rim portion 12 from the water outlet 26 flows on the outer periphery of the bowl portion 10 along the curvature of the rim portion 12 as indicated by arrows in FIG. At this time, the water flowing through the rim portion 12 falls gradually from the opening portion 23 toward the inside of the bowl portion 10 as it proceeds toward the downstream side. Thereby, as shown by the arrow in FIG. 2, a swirling flow of water that has dropped from the open portion 23 of the rim portion 12 is generated inside the bowl portion 10, and the entire inner peripheral surface of the bowl portion 10 is washed. The

  The water that has fallen along the inner peripheral surface of the bowl portion 10 and washed the inner peripheral surface as described above reaches the opening 15 provided at the bottom of the bowl portion 10. The water reaching the opening 15 is discharged from the discharge port 16 through the movable portion 17 of the discharge portion 11 connected to the opening 15 by piping.

  As described above, when the predetermined amount of water is ejected from the nozzle 13 after the cleaning of the bowl portion 10 is started, or when a predetermined time has passed after the cleaning of the bowl portion 10 is started, the discharge unit 11 is movable. The cylinder which comprises the part 17 switches from the state inclined downward as shown in FIG.1 (b) to the attitude | position inclined upwards as shown to Fig.1 (a). At this time, the electromagnetic valve 18 provided in the movable portion 17 is closed. Thereafter, water is supplied from the water supply source (not shown) into the bowl portion 10 through the nozzle 13 and the rim portion 12 until a predetermined amount of time passes or until a predetermined amount of water is supplied through the nozzle 13. . As a result, a predetermined amount of water is accumulated in the bowl portion 10, and a series of cleaning operations of the bowl portion 10 is completed.

  As described above, in the flush toilet 1 of the present embodiment, water flows from the rim portion 12 side to the inside of the bowl portion 10 not only at the portion downstream of the water outlet 26 in the water flow direction but also near the water outlet 26. Fall. That is, in the flush toilet 1, the water spreads evenly over the entire inner peripheral surface of the bowl portion 10 when the bowl portion 10 is washed. Therefore, according to the flush toilet 1 of this embodiment, the whole inner peripheral surface of the bowl part 10 can be wash | cleaned substantially uniformly throughout.

  In the said embodiment, although the water discharging part 16 was arrange | positioned at the right side back, this invention is not necessarily restricted to such a structure. For example, it is possible to dispose the water discharger 16 on the left rear side so that the direction of the swirl flow is opposite to that in the above embodiment.

  In the above embodiment, the case where water is supplied from the water supply source to the nozzle 13 has been described as an example. However, the present invention is not limited to this, and liquid or the like previously mixed with cleaning liquid or the like is supplied to the nozzle 13. It may be configured.

It is a side view which shows the flush toilet concerning one Embodiment of this invention, (a) shows the 1st operation state of the said flush toilet, (b) shows the 2nd operation state of the said flush toilet. It is sectional drawing which shows the state which observed the cross section of the bowl part from upper direction. (A) is a right side view of the bowl part and discharge part in the flush toilet shown in FIG. 1, (b) is a sectional view showing a state of observing the cross section of the bowl part from the right side. It is a perspective view of a washing water ejection part. It is explanatory drawing which shows the relationship between the axis line of the ejection direction of a nozzle, and an adjustment wall.

Explanation of symbols

1 Flush toilet 2 Toilet bowl body 10 Bowl part 12 Rim part (fluid passage)
13 Nozzle 23 Opening part 25 Washing water ejection part (discharge part)
26 Water outlet (inflow part)
30 Adjustment surface

Claims (4)

  A bowl-shaped bowl part, a liquid passage that is provided so as to surround the bowl part at the position of the upper end of the bowl part, and a discharge capable of discharging water or liquid to the liquid passage An inflow portion into which the liquid discharged from the discharge portion can flow is provided in the liquid passage, and the liquid flowing through the liquid passage is dropped from the open portion to the inside of the bowl portion. The flush toilet bowl is characterized in that a part of the water or liquid that has passed through the inflow portion falls to the inside of the bowl portion in the vicinity of the inflow portion.   The discharge unit includes jetting means capable of jetting water or liquid, and adjusting means for adjusting the flow of water or liquid jetted from the jetting means, and the water or liquid jetted from the jetting means is adjusted to the adjusting means. By adjusting the flow of water or liquid ejected from the discharge means, a part of the water or liquid that has passed through the inflow portion falls to the inside of the bowl portion in the vicinity of the inflow portion. The flush toilet according to claim 1.   The liquid passage has a peripheral wall facing the opened portion, the adjusting means is a wall surface formed so as to be continuous with the peripheral wall, the ejection means is a nozzle, and the ejection direction of the nozzle The flush toilet according to claim 2, wherein an axis intersects the wall surface.   The flush toilet according to claim 3, wherein an angle of the axis with respect to the wall surface is in a range of 5 to 60 degrees.

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