Water-washable toilet

Abstract

The present invention aims to provide a wall-mounted flush toilet that expands the range of connection possible via water supply pipes, allowing water supply pipes to be connected even if the location of the shut-off valve differs from one construction site to another. [Solution] The present invention relates to a wall-mounted flush toilet 1, comprising: a toilet body 2 having a bowl portion 12 for receiving waste, water outlets 22, 26 for discharging flushing water into the bowl portion 12, a drain trap pipe 14 connected below the bowl portion 12 for discharging waste, and a skirt portion 16 surrounding the bowl portion 12 and the drain trap pipe 14 from the outside; a water supply valve device 32 provided inside the toilet body 2 for supplying flushing water to the toilet body 2; and a water supply pipe 10 connecting the water supply valve device 32 to a stopcock 8 provided outside the toilet body 2, wherein the water supply pipe 10 extends outwards from the central region in the left-right direction of the lower opening 2a surrounded by the skirt portion 16.

Description

Technical Field

[0005]

[0001] The present invention relates to a flush toilet, particularly a wall-mounted flush toilet.

Background Art

[0003] Also, as described in Patent Documents 2 and 3, a floor-mounted flush toilet is known, in which a water supply valve device is provided inside the toilet body, and this water supply valve device is connected to a stop valve provided on the floor surface by a water supply pipe. In such a flush toilet, an opening is formed in the center in the left-right direction of the rear wall of the toilet body so that the water supply pipe can be connected regardless of whether the stop valve is arranged on the left or right side of the toilet body. Further, the flush toilet described in Patent Document 3 includes a guide portion for guiding the moving direction of the water supply pipe.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] Incidentally, in a wall-mounted flush toilet as described in Patent Document 1, it is conceivable to install a water supply valve device inside the toilet body and connect this water supply valve device to a shut-off valve installed on the wall surface via a water supply pipe. However, the location of the shut-off valve varies from construction site to construction site, and it is impossible to determine whether the shut-off valve is located on the left or right side of the toilet body without checking the construction site. Therefore, there is a problem in that it is necessary to prepare multiple water supply pipes of lengths corresponding to the location of the shut-off valve at each construction site.

[0006] Furthermore, in floor-standing flush toilets as described in Patent Documents 2 and 3, a water supply valve device is provided inside the toilet bowl, and this water supply valve device is connected to a shut-off valve provided on the floor surface by a water supply pipe. In such flush toilets, the opening through which the water supply pipe passes is located in the center of the rear wall in the left-right direction, thus expanding the range over which the water supply pipe can be connected, allowing connection whether the shut-off valve is located on the left or right side of the toilet bowl. However, in wall-mounted flush toilets, the back of the toilet bowl is fixed to the wall, so the water supply pipe cannot be routed through an opening in the rear wall of the toilet bowl and connected to a shut-off valve. Therefore, the aforementioned problem still exists with wall-mounted flush toilets.

[0007] Therefore, the present invention has been made to solve the above-mentioned problems, and aims to provide a flush toilet that can be connected to a water supply pipe in a wall-mounted flush toilet, by expanding the range over which the water supply pipe can be connected, so that the water supply pipe can be connected even if the position of the shut-off valve differs from one construction site to another. [Means for solving the problem]

[0008] To solve the above-mentioned problems, the present invention provides a wall-mounted flush toilet, comprising: a toilet body comprising: a bowl portion for receiving waste; a spout for discharging flushing water into the bowl portion; a drain trap pipe connected to the lower part of the bowl portion for discharging waste; and a skirt portion surrounding the bowl portion and the drain trap pipe from the outside; a water supply valve device provided inside the toilet body for supplying flushing water to the toilet body; and a water supply pipe connecting the water supply valve device to a shut-off valve provided outside the toilet body, wherein the water supply pipe extends outwards from the central region in the left-right direction of the lower opening surrounded by the skirt portion. In this configuration of the present invention, the water supply pipe extends from the central region in the left-right direction of the lower opening surrounded by the skirt portion toward the outside of the toilet bowl body. This expands the range of connection possible with the water supply pipe in a wall-mounted flush toilet. As a result, the water supply pipe can be connected even if the position of the shut-off valve differs from one construction site to another.

[0009] In the present invention, preferably, a base plate is provided which is attached to the toilet bowl body and covers at least a portion of the lower opening, and this base plate has a through hole formed therein, which is located in the central region in the left-right direction of the lower opening and through which a water supply pipe passes. In the present invention configured as described above, a base plate is provided that is attached to the toilet bowl body and covers at least a portion of the lower opening. This base plate has a through-hole formed in it, which is located in the central region in the left-right direction of the lower opening and through which the water supply pipe passes. By passing the water supply pipe through the through-hole in the base plate, the water supply pipe can be guided to extend from the central region in the left-right direction of the lower opening.

[0010] Furthermore, in the present invention, the water supply valve device is preferably located at the right or left end of the toilet bowl body. In the present invention configured in this way, the water supply valve device is located at the right or left end of the toilet bowl body, so that the water supply pipe can be bent with a relatively large radius of curvature, thereby suppressing the load on the connection part of the water supply pipe.

[0011] Preferably, the present invention includes a guide portion that guides the water supply pipe so that it extends towards the through-hole within the toilet bowl body. In the present invention configured in this way, a guide portion is provided inside the toilet bowl body that guides the water supply pipe so that it extends toward the through-hole, thus enabling the water supply pipe to be guided toward the through-hole.

[0012] Furthermore, in the present invention, preferably, the guide portion is positioned in front of the through hole in the base plate. In the present invention configured in this way, the guide portion is positioned in front of the through-hole in the base plate, so that the water supply pipe can be bent with a relatively large radius of curvature.

[0013] In the present invention, preferably, the through-holes in the base plate are formed as elongated holes that are long in the front-to-back direction. In the present invention configured in this way, the through-holes in the base plate are formed as elongated holes that are long in the front-to-back direction, so that the water supply pipe can be passed through at an angle to the vertical direction, and thus the water supply pipe can be bent with a relatively large radius of curvature.

[0014] Furthermore, in the present invention, preferably, the through-hole of the base plate is positioned rearward from the center in the front-to-back direction of the downward opening. In the present invention configured in this way, the through-hole of the base plate is positioned behind the center in the front-to-back direction of the lower opening, so that the water supply pipe can be bent with a relatively large radius of curvature.

[0015] In the present invention, preferably, the through-hole of the base plate is located behind the water supply valve device. In the present invention configured in this way, the through-hole in the base plate is positioned behind the water supply valve device, so the water supply pipe can be bent with a relatively large radius of curvature.

[0016] Also, in the present invention, preferably, the water supply valve device includes a connection portion to which the water supply pipe is connected, and this connection portion extends downward. In the present invention configured as described above, the water supply valve device includes a connection portion to which the water supply pipe is connected, and this connection portion extends downward, so that the water supply pipe can be bent with a relatively large radius of curvature.

Advantages of the Invention

[0017] According to the flush toilet of the present invention, in a wall-mounted flush toilet, the range where the water supply pipe can be connected is expanded, and the water supply pipe can be connected even if the position of the stop valve is different for each construction site.

Brief Description of the Drawings

[0018] [Figure 1] It is a perspective view showing a flush toilet according to an embodiment of the present invention. [Figure 2] It is a top view of the flush toilet with the sanitary cleaning device removed according to an embodiment of the present invention. [Figure 3] It is a side cross-sectional view taken along line III-III of FIG. 2. [Figure 4A] It is a perspective view of the functional device of the flush toilet according to an embodiment of the present invention seen from obliquely above on the left side. [Figure 4B] It is a perspective view of the functional device of the flush toilet according to an embodiment of the present invention seen from obliquely above on the right side. [Figure 5] It is a configuration diagram showing a water supply path through which the washing water of the flush toilet according to an embodiment of the present invention flows. ​​​​​​​​​​​​​​ A flush toilet 1 according to one embodiment of the present invention will be described below with reference to the attached drawings. First, the basic structure of a flush toilet 1 according to one embodiment of the present invention will be explained with reference to Figures 1 to 3. Figure 1 is a perspective view showing a flush toilet according to one embodiment of the present invention, Figure 2 is a top view of the flush toilet according to one embodiment of the present invention with the sanitary cleaning device removed, and Figure 3 is a side cross-sectional view taken along line III-III in Figure 2. In Figure 2, the rim water channel, jet water channel, and jet water supply pipe are indicated by dotted lines. In this specification, when viewing a flush toilet from the front, the front side is referred to as "front," the back side as "rear," the left side as "left," and the right side as "right."

[0020] As shown in Figure 1, a flush toilet 1 according to one embodiment of the present invention is a wall-mounted flush toilet whose back surface is fixed to a wall W. The flush toilet 1 comprises a ceramic toilet body 2, a tank device 4 for storing flushing water supplied to the toilet body 2, and a sanitary flushing device 6 mounted on the top surface of the toilet body 2. A shut-off valve 8 is provided on the wall W for supplying or stopping the flow of flushing water from a water source (not shown), such as a water tap, to the flush toilet 1. This shut-off valve 8 is located on the lower left side of the toilet body 2. The shut-off valve 8 is connected to the flush toilet 1 via a water supply pipe 10. The water supply pipe 10 is a flexible water supply hose.

[0021] As shown in Figures 2 and 3, the toilet bowl body 2 has a bowl portion 12 for receiving waste, a drain trap pipe 14 connected below the bowl portion 12 for discharging waste, and a skirt portion 16 that surrounds the bowl portion 12 and the drain trap pipe 14 from the outside. A space S is formed inside the toilet bowl body 2 between the bowl portion 12 and the drain trap pipe 14 and the skirt portion 16.

[0022] The bowl portion 12 comprises a bowl-shaped waste receiving surface 18 and a rim portion 20 formed along the upper edge of the bowl portion 12. Water is formed inside the bowl portion 12.

[0023] The rim portion 20 has a rim outlet 22 for discharging cleaning water towards the rear, and a rim water channel 24 for guiding the cleaning water to the rim outlet 22. The rim outlet 22 is located in the central area in the front-to-back direction on the right side of the bowl portion 12. The cleaning water discharged from the rim outlet 22 flows down the waste receiving surface 18 while swirling along the inner circumferential surface of the rim portion 20, cleaning the bowl portion 12.

[0024] Below the bowl section 12, a jet outlet 26 is formed, which discharges cleaning water toward the inlet 14a of the drain trap pipe 14, and a jet water channel 28 is formed, which supplies cleaning water to the jet outlet 26. The jet outlet 26 is positioned opposite the inlet 14a of the drain trap pipe 14. The cleaning water discharged from the jet outlet 26 flows into the drain trap pipe 14 to activate a siphon effect.

[0025] One embodiment of the present invention describes a flush toilet 1 which is a siphon-jet type flush toilet that discharges waste by generating a siphon action through a jet of water. However, it is not limited to this form, and other forms may include, for example, a wash-down type flush toilet that washes away waste with the flowing action caused by the difference in water pressure, or a siphon-type flush toilet that discharges waste by generating a siphon action solely through rim water discharge.

[0026] The drain trap pipe 14 comprises an inlet 14a connected to the bottom of the bowl section 12, an upward pipe 14b extending upward from the inlet 14a, a top 14c located at the highest point of the upward pipe 14b that defines the water level, and a rear pipe 14d extending almost horizontally backward from this top 14c. The rear pipe 14d of the drain trap pipe 14 is connected to a drain pipe (not shown) inside the wall W via a drain socket 30.

[0027] The sanitary cleaning device 6 comprises a main body (not shown), a cleaning nozzle (not shown) provided to be movable forward and backward from the main body, a toilet seat (not shown) rotatably attached to the main body, and a toilet seat cover rotatably attached to the main body so as to cover the toilet seat.

[0028] As shown in Figures 2 and 3, a space S is formed within the toilet bowl body 2 between the bowl portion 12 and the drain trap pipe 14 and the skirt portion 16. The tank device 4 is housed in the space S surrounded by the skirt portion 16 below the bowl portion 12 within the toilet bowl body 2. Functional devices for supplying flushing water to the toilet bowl body 2 are housed in the space S behind the bowl portion 12 within the toilet bowl body 2. These functional devices include, for example, a water supply valve device 32, a pump device 34, a switching valve device 36, and a control device 38. Furthermore, a base plate 40 is provided in the lower opening 2a surrounded by the skirt portion 16 of the toilet bowl body 2, and this base plate 40 supports the aforementioned functional devices.

[0029] Next, the tank device 4, functional device, and base plate 40 housed in the space S within the toilet bowl body 2 will be described with reference to Figures 4A and 4B. Figure 4A is a perspective view of the functional device of a flush toilet according to one embodiment of the present invention, viewed from the upper left, and Figure 4B is a perspective view of the functional device of a flush toilet according to one embodiment of the present invention, viewed from the upper right, at an angle. In Figure 4A, the direction of the flow of flushing water is indicated by an arrow.

[0030] The tank device 4 includes a water storage tank 42 for storing flushing water supplied to the toilet bowl 2, a tank water supply unit 46 for allowing flushing water from a water supply pipe 44 to flow into the water storage tank 42, a float switch 48 for detecting the water level of flushing water stored in the water storage tank 42, and a fixing member 50 for fixing the tank device 4 to the bottom surface of the toilet bowl 2.

[0031] The water storage tank 42 is formed in an L-shape when viewed from above, extending forward to the right of the drain trap pipe 14, then bending and extending to the left. The water storage tank 42 is a resin tank that stores cleaning water used for rim discharge and jet discharge, and can store approximately 4 liters of cleaning water.

[0032] The tank water supply unit 46 is located on top of the water storage tank 42. The upstream side of the tank water supply unit 46 is connected to the tank water supply pipe 44, and the downstream side of the tank water supply unit 46 is connected to the water storage tank 42. Inside the tank water supply unit 46, a flow path is formed to guide the cleaning water from the tank water supply pipe 44 towards the water storage tank 42.

[0033] The float switch 48 is located above the water storage tank 42. The float switch 48 turns off when the water level in the tank falls below the shut-off level (full water level), opening the water supply valve device 32. Conversely, the float switch 48 turns on when the water level in the tank rises to the shut-off level, closing the water supply valve device 32.

[0034] The water storage tank 42 is equipped with an overflow unit 62 for draining cleaning water outside the tank in the event that, for example, the float switch 48 malfunctions and the tank continues to supply water. The overflow unit 62 is connected to a drain socket 30, so that cleaning water overflowing from the water storage tank 42 is discharged into the drain socket 30 via the overflow unit 62.

[0035] The water supply valve device 32 includes a constant flow valve (not shown) for maintaining a constant flow rate of cleaning water, an on-off valve (not shown) located downstream of the constant flow valve for switching between supplying and shutting off cleaning water, and a solenoid valve (not shown) for driving this on-off valve. The upstream side of the water supply valve device 32 is connected to a water source (not shown) via a stopcock 8 and a water supply pipe 10, while the downstream side of the water supply valve device 32 is connected to the sanitary cleaning device 6 via a water supply pipe 52 for the sanitary cleaning device, and also to the tank device 4 via a water supply pipe 44 for the tank. When the solenoid valve opens electromagnetically, the on-off valve opens, and cleaning water from the water source is supplied to the tank device 4 via the water supply pipe 44 for the tank.

[0036] The pump device 34 is a pressurized pump that draws in the flushing water stored in the tank device 4 and pumps it to the toilet bowl body 2. The upstream side of the pump device 34 is connected to the tank device 4 via an upstream connecting pipe 54, and the downstream side of the pump device 34 is connected to the switching valve device 36 via a downstream connecting pipe 56. When the pump device 34 is operated, the flushing water stored in the tank device 4 is pumped and discharged from the rim outlet 22 and the jet outlet 26, thereby flushing the toilet bowl. In this embodiment of the flush toilet 1, the flushing water stored in the tank device 4 is supplied to the rim outlet 22 and the jet outlet 26, but the invention is not limited to this configuration, and other configurations are also possible, for example, in which all the flushing water stored in the tank device 4 is discharged from the rim outlet 22.

[0037] The switching valve device 36 includes a switching valve body (not shown) and switches the water supply channels that supply cleaning water from the pump device 34 to the rim discharge port 22 and the jet discharge port 26, respectively. The upstream side of the switching valve device 36 is connected to the pump device 34 via a downstream connecting pipe 56, and the downstream side of the switching valve device 36 is connected to the rim water supply channel 24 via a rim water supply pipe 58 and to the jet water supply channel 28 via a jet water supply pipe 60. When the switching valve body is closed, cleaning water from the pump device 34 is supplied to the rim discharge port 22, and when the switching valve body is open, cleaning water from the pump device 34 is supplied to both the rim discharge port 22 and the jet discharge port 26.

[0038] The control device 38 is electrically connected to a remote control (not shown), a tank device 4 (float switch 48), a sanitary cleaning device 6, a water supply valve device 32, a pump device 34, and a switching valve device 36, and is capable of sending and receiving various signals. When the control device 38 receives a cleaning start signal for a large or small cleaning from the remote control, it drives or stops the pump device 34 based on a pre-stored cleaning sequence. Specifically, when the user operates the remote control, the control device 38 drives the pump device 34 to discharge the cleaning water stored in the tank device 4 from the rim outlet 22 and the jet outlet 26. The control device 38 also opens the water supply valve device 32 to supply water to the tank, and when the float switch 48 detects that the tank is full, it closes the water supply valve device 32 to stop the tank water supply.

[0039] Next, with reference to Figure 5, the water supply channel through which the flushing water of a flush toilet 1 according to one embodiment of the present invention flows will be explained. Figure 5 is a diagram showing the water supply channel through which flushing water flows for a flush toilet according to one embodiment of the present invention.

[0040] The water supply channel of the flush toilet 1 is configured, from upstream, with a stopcock 8, a water supply valve device 32, a tank device 4, a pump device 34, and a switching valve device 36. First, flushing water is supplied from the water source to the water supply valve device 32 via the stopcock 8 and the water supply pipe 10. The flushing water supplied to the water supply valve device 32 is supplied to the sanitary flushing device 6 via the sanitary flushing device water supply pipe 52, and also to the tank device 4 via the tank water supply pipe 44. The flushing water stored in the tank device 4 is drawn up by the pump device 34 via the upstream connecting pipe 54 and supplied to the switching valve device 36 via the downstream connecting pipe 56. The flushing water supplied to the switching valve device 36 is discharged from the rim outlet 22 via the rim water supply pipe 58 and the rim water conduit 24, and also discharged from the jet outlet 26 via the jet water supply pipe 60 and the jet water conduit 28. Furthermore, the cleaning water that overflows from the tank device 4 is discharged to the drain socket 30 via the overflow unit 62.

[0041] Next, the arrangement of the water supply pipe 10 of a flush toilet 1 according to one embodiment of the present invention will be described in detail with reference to Figures 6 to 8. Figure 6 is a bottom view showing a flush toilet according to one embodiment of the present invention, Figure 7 is a schematic perspective view illustrating the arrangement of the water supply pipes of a flush toilet according to one embodiment of the present invention, and Figure 8 is a front cross-sectional view taken along line VIII-VIII in Figure 2.

[0042] As shown in Figure 6, the lower opening 2a surrounded by the skirt portion 16 of the toilet bowl body 2 is formed in a rectangular shape that is long in the front-to-back direction. The lower opening 2a is covered by an L-shaped tank device 4 and a rectangular base plate 40. The tank device 4 and the base plate 40 are connected to each other and fixed to the toilet bowl body 2 by fixing members 50.

[0043] The base plate 40 has a through-hole 40a through which the water supply pipe 10 passes. The through-hole 40a is located in the central region in the left-right direction of the lower opening 2a, specifically on the central axis CL1 in the left-right direction of the lower opening 2a. Here, the central region in the left-right direction of the lower opening 2a includes the central axis CL1 of the lower opening 2a and the vicinity of that central axis CL1. By passing the water supply pipe 10 through the through-hole 40a, the water supply pipe 10 is guided by the through-hole 40a, and the water supply pipe 10 extends from the central region in the left-right direction of the lower opening 2a toward the outside of the toilet bowl body. This expands the range over which the water supply pipe 10 can be connected, allowing connection regardless of whether the shut-off valve 8 is located on the left or right side of the toilet bowl body. Furthermore, because the water supply pipe 10 extends from the lower opening 2a toward the outside of the toilet bowl body, the excess length of the water supply pipe 10 can be accommodated not only in the space S inside the toilet bowl body 2 but also in the space below the toilet bowl body 2.

[0044] The through-hole 40a in the base plate 40 is formed as an elongated hole that is long in the front-to-back direction. The through-hole 40a is formed so that its length in the front-to-back direction is approximately three times its length in the left-to-right direction. This allows the water supply pipe 10 to pass through the through-hole 40a at an angle to the vertical direction (see Figure 3).

[0045] As shown in Figures 6 and 7, the upstream end of the water supply pipe 10 is connected to a shut-off valve 8, and the downstream end of the water supply pipe 10 is connected to a water supply valve device 32. The shut-off valve 8 is located on the lower left wall surface W of the toilet bowl body 2. The water supply valve device 32 is located towards the left end inside the toilet bowl body 2. This allows the water supply pipe 10 to bend with a relatively large radius of curvature compared to when the water supply valve device 32 is located in the center in the left-right direction. In one embodiment of the present invention, the flush toilet 1 has the water supply valve device 32 positioned towards the left end of the toilet body 2. However, the invention is not limited to this configuration, and in other configurations, for example, the water supply valve device may be positioned towards the right end of the toilet body 2.

[0046] The through-hole 40a of the base plate 40 is located behind the central axis CL2 of the front-to-back center of the lower opening 2a, and behind the water supply valve device 32 provided on the base plate 40. Furthermore, the through-hole 40a is located in front of the stopcock 8. As a result, the through-hole 40a is located midway between the stopcock 8 and the water supply valve device 32, allowing the water supply pipe 10 to be bent with a relatively large radius of curvature.

[0047] As shown in Figures 7 and 8, the water supply valve device 32 is provided with a connection part 32a to which the water supply pipe 10 is connected. The connection part 32a is an elbow pipe bent into a roughly L-shape. The connection part 32a extends downward and to the right toward the through hole 40a. This allows the water supply pipe 10 to be bent with a relatively large radius of curvature.

[0048] The stopcock 8 is provided with a connection part 8a to which the water supply pipe 10 is connected. The connection part 8a extends horizontally to the right. Since both the connection part 8a of the stopcock 8 and the connection part 32a of the water supply valve device 32 extend to the right, the water supply pipe 10 can be bent with a relatively large radius of curvature.

[0049] As shown in Figures 7 and 8, a pump device 34, a control device 38, and a switching valve device 36 are arranged in a nearly straight line vertically near the right side of the water supply valve device 32. The pump device 34 is fixed to the upper surface of the base plate 40, the control device 38 is fixed to the upper surface of the pump device 34, and the switching valve device 36 is fixed to the upper surface of the control device 38. The pump device 34 is connected to an upstream connecting pipe 54 that extends forward and a downstream connecting pipe 56 that extends upward. The upstream connecting pipe 54 and the downstream connecting pipe 56 intersect at a right angle, and the surface of the pump device 34 between them functions as a guide section 70 that guides the direction of movement of the water supply pipe 10.

[0050] The guide section 70 guides the water supply pipe 10 toward the through-hole 40a within the toilet bowl body 2. The guide section 70 is positioned in front of the through-hole 40a. This allows the water supply pipe 10 to be guided while bending with a relatively large radius of curvature. In the flush toilet 1 according to one embodiment of the present invention, the guide section 70 is composed of a part of the pump device 34, but the invention is not limited to this form, and in other forms, for example, it may be composed of a control device 38, a switching valve device 36, each connecting pipe, etc., or a separate guide member may be provided.

[0051] The following describes the operation and effects of the flush toilet 1 according to the above-described embodiment. First, according to one embodiment of the present invention, the water supply pipe 10 extends outwards from the central region in the left-right direction of the lower opening 2a surrounded by the skirt portion 16, thereby expanding the range to which the water supply pipe 10 can be connected in a wall-mounted flush toilet 1. As a result, the water supply pipe 10 can be connected even if the position of the shut-off valve 8 differs from one construction site to another.

[0052] Furthermore, according to one embodiment of the present invention, a flush toilet 1 is provided with a base plate 40 attached to the toilet body 2 and covering at least a portion of the lower opening 2a. The base plate 40 has a through hole 40a formed in it, which is located in the central region in the left-right direction of the lower opening 2a and through which the water supply pipe 10 passes. By passing the water supply pipe 10 through the through hole 40a in the base plate 40, the water supply pipe 10 can be guided to extend from the central region in the left-right direction of the lower opening 2a.

[0053] Furthermore, according to the flush toilet 1 of one embodiment of the present invention, the water supply valve device 32 is located at the right or left end of the toilet body 2, so that the water supply pipe 10 can be bent with a relatively large radius of curvature, and the load on the connection part of the water supply pipe 10 can be suppressed.

[0054] Furthermore, according to the flush toilet 1 of one embodiment of the present invention, a guide portion 70 is provided within the toilet body 2 that guides the water supply pipe 10 so that it extends toward the through hole 40a, so that the water supply pipe 10 can be guided toward the through hole 40a.

[0055] Furthermore, according to the flush toilet 1 of one embodiment of the present invention, the guide portion 70 is positioned in front of the through hole 40a of the base plate 40, so that the water supply pipe 10 can be bent with a relatively large radius of curvature.

[0056] Furthermore, according to the flush toilet 1 of one embodiment of the present invention, the through hole 40a of the base plate 40 is formed as an elongated hole that is long in the front-to-back direction, so that the water supply pipe 10 can be passed through at an angle with respect to the vertical direction, and thus the water supply pipe 10 can be bent with a relatively large radius of curvature.

[0057] Furthermore, according to the flush toilet 1 of one embodiment of the present invention, the through hole 40a of the base plate 40 is positioned behind the center in the front-to-back direction of the lower opening 2a, so that the water supply pipe 10 can be bent with a relatively large radius of curvature.

[0058] Furthermore, according to the flush toilet 1 of one embodiment of the present invention, the through hole 40a of the base plate 40 is located behind the water supply valve device 32, so the water supply pipe 10 can be bent with a relatively large radius of curvature.

[0059] Furthermore, according to the flush toilet 1 of one embodiment of the present invention, the water supply valve device 32 is equipped with a connecting portion 32a to which the water supply pipe 10 is connected, and since this connecting portion 32a extends downward, the water supply pipe 10 can be bent with a relatively large radius of curvature.

[0060] The present invention is not limited to the embodiments described above, and various modifications and variations are possible within the scope of the technical idea described in the claims. [Explanation of symbols]

[0061] 1: Flush toilet 2: Toilet bowl 2a: Lower opening of the toilet bowl 8: Shut-off valve 8a: Connection part of the shut-off valve 10: Water supply pipe 12: Bowl section 14: Drain trap pipe 16: Skirt section 32: Water supply valve device 32a: Connection part of the water supply valve device 40: Base plate 40a: Through hole in base plate 70: Guide Section CL1: The left-right central axis of the lower opening of the toilet bowl. CL2: The central axis in the front-to-back direction of the lower opening of the toilet bowl body. W: Wall surface

Claims

1. It is a wall-mounted flush toilet, A toilet bowl body comprising: a bowl portion for receiving waste; a spout for discharging cleaning water into the bowl portion; a drain trap pipe connected below the bowl portion for discharging waste; and a skirt portion surrounding the bowl portion and the drain trap pipe from the outside. A water supply valve device is provided inside the toilet bowl body to supply flushing water to the toilet bowl body, A water supply pipe connects this water supply valve device to a shut-off valve located outside the toilet bowl body, It has, A flush toilet characterized in that the water supply pipe extends outwards from the central region in the left-right direction of the lower opening surrounded by the skirt portion.

2. The toilet bowl body is attached to the base plate which covers at least a portion of the lower opening, The flush toilet according to claim 1, wherein the base plate has a through hole formed therein, which is located in the central region in the left-right direction of the lower opening, through which the water supply pipe passes.

3. The flush toilet according to claim 2, wherein the above-mentioned water supply valve device is located at the right end or left end of the toilet bowl body.

4. The flush toilet according to claim 2 or 3, further comprising a guide portion within the toilet bowl body that guides the water supply pipe so that it extends toward the through-hole.

5. The flush toilet according to claim 4, wherein the guide portion is positioned in front of the through hole in the base plate.

6. The flush toilet according to claim 2, wherein the through hole in the base plate is formed as an elongated hole that is long in the front-to-back direction.

7. The flush toilet according to claim 2, wherein the through hole of the base plate is located behind the center in the front-to-back direction of the lower opening.

8. The flush toilet according to claim 2, wherein the through hole of the base plate is located behind the water supply valve device.

9. The flush toilet according to claim 2, wherein the water supply valve device includes a connecting portion to which the water supply pipe is connected, and this connecting portion extends downward.

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