Water flush toilet device

Abstract

To provide a flush toilet bowl device that can measure a user's load relatively stably.SOLUTION: The flush toilet bowl device of the present invention comprises: a toilet body 2 that can be used while a user is sitting; a load receiving member 24 that is provided behind the toilet body 2 and receives a load of the toilet body 2 so that the toilet body is provided so as to float from a floor; and a sensor part 26 that measures parameters corresponding to a load of the user who uses the toilet body, wherein the sensor part 26 is provided on the load receiving member 24 behind the toilet body.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a flush toilet apparatus, and more particularly to a flush toilet apparatus that is flushed with flush water supplied from a flush water source to expel waste. [Background technology]

[0002] Conventionally, there is known a flush toilet apparatus in which a weight measuring device is disposed as a weight measuring means in front of the flush toilet, as described in Patent Document 1. Also, as described in Patent Document 2, there is known a floor-standing toilet apparatus in which a pressure pad is provided so as to come into contact with the bottom periphery of the toilet base.

[0003] Furthermore, as described in Patent Document 3, a flush toilet apparatus is known in which a weight measuring means, which is a pressure sensor, is disposed on the toilet seat of the flush toilet apparatus, and this weight measuring means measures the weight of the user. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2005-172647 A [Patent Document 2] US Patent Publication No. 2020 / 0033206 [Patent Document 3] JP 2000-83866 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when trying to measure the user's weight in a flush toilet device such as those shown in Patent Documents 1 and 2, even if one tries to use a toilet seat with a weight measuring means as shown in Patent Document 3, this toilet seat is fixed to the toilet body via a hinge, so the user's weight is dispersed from the toilet seat via the rotating hinge, making it impossible to stably measure the user's weight. In particular, in the case of so-called wall-hung flush toilets, which are different from floor-standing toilet devices, there is a problem in that the user's weight is easily dispersed and cannot be stably measured.

[0006] Therefore, the present invention has been made to solve the problems required by the prior art mentioned above, and aims to provide a flush toilet apparatus in a so-called wall-hung type flush toilet apparatus in which the sensor unit is mounted on a fixed load-receiving member, rather than on a movable member like the toilet seat, allowing for relatively stable measurement of the user's load. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the present invention is a flush toilet device that is flushed with flush water supplied from a flush water source and expels waste, and comprises a toilet body that can be used while a user is seated, a load-receiving member that is provided behind the toilet body and receives the load of the toilet body so that the toilet body is provided in a floating position above the floor, and a sensor unit that measures a parameter corresponding to the load of a user using the toilet body, and the sensor unit is provided on the load-receiving member behind the toilet body. In one embodiment of the present invention configured in this manner, in a flush toilet apparatus equipped with a so-called wall-hung toilet main body, in which the toilet main body is installed in a state where it is floating above the floor, the sensor unit is installed on the load-receiving member behind the toilet main body. As a result, in a so-called wall-hung flush toilet apparatus, the sensor unit is installed on a fixed load-receiving member rather than a movable member such as the toilet seat, allowing the user's load to be measured relatively stably.

[0008] In the present invention, the sensor portion is preferably provided at a position between a support structure of the load-receiving member that rises vertically behind the rear wall of the toilet body, and the rear of the toilet body. If the sensor unit is arranged on the rear side of the support structure that rises vertically behind the rear wall of the toilet body among the load-receiving members, there is a concern that if the wall becomes even thicker, the load will be more likely to be distributed over the wall, making it difficult to stably measure the load of the user. In contrast, in one embodiment of the present invention configured in this way, the sensor unit is provided at a position between the support structure that rises vertically behind the rear wall of the toilet body among the load-receiving members, and the rear part of the toilet body. This makes it less susceptible to the thickness of the wall compared to when the sensor unit is arranged on the rear side of the support structure, and allows for relatively stable measurement of the load of the user.

[0009] In the present invention, the sensor portion is preferably provided at a position lower than the height position of the upper part of the rear part of the toilet body. In one embodiment of the present invention configured in this manner, the sensor unit is provided at a position lower than the height position of the upper rear part of the toilet body, so that when a user sits on the wall-hung toilet body, the load can be more easily applied to the sensor unit, allowing for more accurate measurement of the load. Also, since a fixing member that fixes the support structure and the toilet body is often attached at the height position of the upper rear part of the toilet body, by providing the sensor unit at a position lower and away from the height position of the upper rear part of the toilet body, the fixing member is less likely to affect the measurement by the sensor unit, allowing for more accurate measurement of the load.

[0010] In the present invention, the rear wall surface of the toilet body is preferably formed by a cover panel covering the front side of the support structure, and the sensor unit is provided at a position between the cover panel and the rear of the toilet body. In one embodiment of the present invention configured in this manner, when the rear wall surface of the toilet body is formed by a cover panel that covers the front side of the support structure, the sensor unit is provided at a position between the cover panel and the rear of the toilet body. This makes it possible to measure the user's load relatively stably with the sensor unit, even when a cover panel is provided to make the support structure less visible to the user, as compared to a case in which the sensor unit is located behind the cover panel.

[0011] In the present invention, preferably, the load-receiving member comprises a fixed portion which is fixed to the rear of the toilet body so as to support the toilet body, and an abutment portion which abuts against the rear of the toilet body below the fixed portion to receive the load of the toilet body, the abutment portion of the load-receiving member extending from the back side of the wall to the rear of the toilet body on the front side through an opening formed in the wall surface at the rear of the toilet body, and the sensor portion is provided on the abutment portion. In one embodiment of the present invention configured in this manner, the abutment portion extends from the back side of the wall to the rear of the toilet body on the front side through an opening formed in the rear wall of the toilet body, and the sensor portion is provided on the abutment portion. Therefore, even if the material or thickness of the component that makes up the rear wall of the toilet body is arbitrarily changed, the measurement by the sensor portion is less likely to be affected by changes in the material or thickness of the wall, and the sensor portion can more stably measure the user's load.

[0012] In the present invention, the load-receiving member preferably includes a fixing auxiliary member between the rear wall surface of the toilet body and the toilet body to assist in fixing the toilet body, and the sensor unit is provided on the fixing auxiliary member. In one embodiment of the present invention configured in this manner, the sensor unit is provided on the fixed auxiliary member, so that the measurement by the sensor unit is less affected by changes in the material or thickness of the wall surface, and the sensor unit can measure the user's load more stably.

[0013] In the present invention, the sensor portion is preferably a strain gauge. In one embodiment of the present invention configured as described above, the sensor unit is a strain gauge, which can be provided relatively inexpensively compared to a pressure sensor and can measure the load of the user relatively accurately compared to a spring scale. Therefore, the sensor unit can measure the load of the user relatively inexpensively and relatively accurately.

[0014] In the present invention, preferably, a plurality of the sensor portions are provided. In one embodiment of the present invention configured as described above, the load of the user can be measured more accurately based on the measurement results from the multiple sensor units provided.

[0015] In the present invention, preferably, the plurality of sensor sections are arranged symmetrically about a central cross section extending from the front to the rear of the toilet body. In one embodiment of the present invention configured in this manner, the plurality of sensor units are arranged symmetrically about a central cross section extending forward and backward of the toilet body, which allows the sensor units to measure the load of the user more accurately, taking into consideration that the plurality of sensor units receive different loads depending on the user's sitting position. Effect of the Invention

[0016] According to the flush toilet apparatus of the present invention, the load of the user can be measured relatively stably. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view showing a flush toilet apparatus according to a first embodiment of the invention, placed on a wall. [Diagram 2] FIG. 1 is a side view showing a flush toilet apparatus according to a first embodiment of the present invention placed against a wall. [Diagram 3] FIG. 1 is a front view showing a flush toilet apparatus according to a first embodiment of the present invention placed against a wall. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] FIG. 1 is an exploded perspective view showing a flush toilet apparatus according to a first embodiment of the present invention, disassembled relative to a wall. [Figure 6] FIG. 2 is a perspective view, seen from the back, of the support structure for a load-receiving member of a flush toilet apparatus according to a first embodiment of the present invention. [Figure 7] FIG. 4 is a schematic diagram showing a modified example of a flush toilet apparatus according to the first embodiment of the present invention. [Figure 8] FIG. 4 is a schematic diagram showing another modified example of a flush toilet apparatus according to the first embodiment of the present invention. [Figure 9] FIG. 13 is a diagram showing an example of the correlation between the amount of distortion displacement measured by the sensor unit of the flush toilet apparatus according to the first embodiment of the present invention and the weight of the user. [Figure 10] FIG. 11 is a cross-sectional view showing a flush toilet apparatus according to a second embodiment of the present invention placed against a wall. [Figure 11] FIG. 13 is a perspective view showing the fixed part, abutment part, etc., of a flush toilet apparatus according to a second embodiment of the present invention, with the toilet body removed from the wall. [Figure 12] FIG. 12 is a front view showing the fixed part, abutment part, etc., in a state in which the toilet body of the flush toilet apparatus shown in FIG. 11 has been removed from the wall. [Figure 13] 12 is an exploded perspective view showing a state in which the contact portion is further disassembled from the state shown in FIG. 11. [Figure 14] FIG. 13 is a diagram showing an example of the correlation between the amount of distortion displacement measured by the sensor unit of a flush toilet apparatus according to a second embodiment of the present invention and the weight of a user. [Figure 15] FIG. 13 is an exploded perspective view showing a flush toilet apparatus according to a third embodiment of the present invention, with the toilet body, auxiliary fixing member, load-receiving member, etc. disassembled relative to the wall. [Figure 16] FIG. 13 is a schematic diagram showing a modified example of a flush toilet apparatus according to the third embodiment of the present invention. [Figure 17] FIG. 11 is a perspective view showing a flush toilet apparatus according to a fourth embodiment of the invention, placed against a cover panel. [Figure 18] FIG. 13 is a side view showing a flush toilet apparatus according to a fourth embodiment of the present invention, arranged relative to a cover panel. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Below, we will explain the flush toilet device according to the first embodiment of the present invention with reference to the attached drawings. First, we will explain the flush toilet device according to the first embodiment of the present invention with reference to Fig. 1 to Fig. 5. Fig. 1 is a perspective view showing a flush toilet device according to the first embodiment of the present invention placed against a wall, Fig. 2 is a side view showing a flush toilet device according to the first embodiment of the present invention placed against a wall from the side, Fig. 3 is a front view showing a flush toilet device according to the first embodiment of the present invention placed against a wall from the front, Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 3, and Fig. 5 is an exploded perspective view showing the flush toilet device according to the first embodiment of the present invention disassembled from the wall.

[0019] As shown in FIG. 1, a flush toilet apparatus 1 according to a first embodiment of the present invention is a flush toilet apparatus that is flushed with flush water supplied from a flush water source and expels waste. In the following explanation of the first embodiment of the present invention, the near side as seen from the user using the flush toilet device 1 (the user standing in front of the flush toilet device 1 to use it) is referred to as the front, the far side as seen from the user is referred to as the rear, the right side as seen from the front of the flush toilet device 1 is referred to as the right side, and the left side as seen from the front is referred to as the left side.

[0020] The flush toilet device 1 comprises a toilet body 2 that can be used while the user is seated, a flush water tank device 4 that supplies flush water to the toilet body 2, a load-receiving member 24 that is provided at the rear of the toilet body 2 so that the toilet body 2 is positioned above the floor F and that receives the load of the toilet body 2, a sensor unit 26 that measures a parameter corresponding to the load of a user using the toilet body 2, a control unit 27 (see Figure 2) electrically connected to the sensor unit 26, and an operation unit 29 that allows the user to operate the start of toilet flushing etc. and that displays the measurement results of the user's load or weight etc.

[0021] The toilet body 2 constitutes the toilet body of a so-called wall-hung flush toilet, which is fixed to the surface side of the wall W and is installed in a floating state above the floor F. The toilet body 2 of a wall-hung flush toilet is attached solely to a load-receiving member 24 on the wall surface side, and there is no support member between the floor F and the toilet body 2. The wall surface is formed by the wall W, but may also be formed by a structure such as a cover panel P, as described below.

[0022] The toilet body 2 is made of ceramic, but may also be made of resin. As shown in Fig. 2, the toilet body 2 is equipped with a toilet seat 3 arranged on the upper surface of the toilet body 2 so as to be vertically rotatable, a toilet lid 5 arranged so as to be vertically rotatable so as to cover the toilet seat, and a sanitary washing system functional part 7 arranged at the upper rear part of the toilet body 2 and functioning as a sanitary washing part that washes the user's private parts.

[0023] 1 to 3, the toilet body 2 is provided with a bowl-shaped bowl portion 14. The toilet body 2 is provided with a drain trap pipe 16, the inlet of which is connected to the bottom of the bowl portion 14, and which is a drainage path for discharging waste within the bowl portion 14.

[0024] Next, as shown in FIG. 4, the bowl portion 14 has a rim water passage 20, which is part of the rim water spout portion, formed inside the upper rim portion on the right side in the front region of the bowl portion 14 when viewed from the front of the toilet body 2. Furthermore, a first rim water outlet 18 and a second rim water outlet 19, which are part of the rim water outlet portion, are formed at the branched downstream ends of this rim water passage 20. The rim water passage 20 extends from the rear to the right side of the toilet body 2. Furthermore, the upstream side of the rim water passage 20 is connected to a water pipe 22, which is a water conduit that supplies flush water supplied from the flush water tank 6 to the rim water passage 20. The first rim water outlet 18 opens from the side of the bowl portion 14 toward the rear. The second rim water outlet 19 opens from the rear of the bowl portion 14 toward the side. The flush water led to the first rim spout 18 is spouted rearward (rim spout) and swirls inside the bowl portion 14, thereby washing away and discharging waste. The flush water led to the second rim spout 19 is spouted from the rear toward the side (rim spout) and swirls inside the bowl portion 14, thereby washing away and discharging waste. The flush water and waste discharged from the drain trap pipe 16 are discharged through the drain passage 17 further downstream.

[0025] The flush water tank apparatus 4 is equipped with a gravity-fed flush water tank 6 arranged in the area behind the wall W, and utilizes gravity to supply the flush water in this flush water tank 6 to the toilet body 2 of the flush toilet. The flush water tank apparatus 4 is a concealed flush water tank apparatus that is concealed behind the wall W. The flush water source that supplies flush water to the toilet body 2 is not limited to a tank-type such as the gravity-fed flush water tank 6 shown in this embodiment, and may be a direct water supply pressure type that directly utilizes the water supply pressure of tap water, a flush valve type, or one that supplies flush water by utilizing supplementary pump pressure.

[0026] As shown in FIG. 4, a water supply device 8 and a drain valve device 10 are provided inside the flush water tank 6 of the flush water tank device 4. First, the water supply device 8 is connected to a water supply source (not shown) external to the flush water tank 6, such as a water line, and is adapted to switch between discharging and stopping flush water supplied from the water supply source, and to supply water appropriately into the flush water tank 6. Also, the drain valve device 10 is provided within the flush water tank 6, and opens a drain outlet 12 for flush water stored in the flush water tank 6 to flow out into the toilet body 2.

[0027] Next, the load-receiving member 24 and sensor section 26 of the flush toilet apparatus 1 according to the first embodiment of the present invention will be explained with reference to Figures 2 to 6. Figure 6 is a perspective view of the support structure for the load-receiving member of the flush toilet apparatus according to the first embodiment of the present invention, viewed from the back.

[0028] As shown in Figure 5, the load-receiving member 24 comprises a support structure 28 that rises vertically on the back side of the wall W, which is the rear wall surface of the toilet body 2, and a fixing part 30 that is fixed to the upper part 2b of the rear part 2a of the toilet body 2 so as to support the toilet body 2. The fixing part 30 and the toilet body 2 are fixed at a position closer to the floor than the water conduit 22, and this fixation reduces the impact on the rim water conduit 20 and the like.

[0029] The support structure 28 is fixed to the floor F. The support structure 28 may be fixed to a floor other than the floor F or to another structure of the building. The support structure 28 comprises a vertical frame body 28a extending vertically on the side of the flush water tank 6, and a horizontal frame body 28b connecting the two vertical frame bodies 28a, and has the strength to support the toilet body 2 (including the flush water, etc. in the toilet body 2) and the weight of the user from the back side of the wall W. The support structure 28 is formed from metal. The support structure 28 is positioned so that the vertical frame body 28a abuts against the back side of the wall W.

[0030] The fixing part 30 extends almost horizontally forward from the horizontal frame body 28b of the support structure 28 to the rear part 2a of the toilet body 2. The fixing part 30 is formed of a metal bolt. The fixing part 30 is a bolt with a relatively large diameter and a long length that extends from the rear side of the wall W to the rear part 2a of the toilet body 2 on the front side. The fixing part 30 has the strength to support the weight of the toilet body 2 and the user from the rear side of the wall W. The fixing part 30 is provided at a height position of the upper part 2b of the rear part 2a of the toilet body 2 at the position where the toilet body 2 is to be attached. In this way, the toilet body 2 is fixed to the fixing part 30, and the toilet body 2 is fixed to the support structure 28. The support structure 28 and the fixing part 30 of the load-receiving member 24 receive the load of the toilet body 2 and the user. At this time, only the toilet body 2 and the wall W are visible from the front side of the toilet body 2, so the toilet body 2 appears to be fixed to the wall surface of the wall W. Furthermore, by fixing the toilet body 2 relatively high up on the toilet body 2, it is possible to prevent the toilet body 2 from warping downwards due to the weight of the toilet body 2 and the user, which may cause a gap to form between the wall W and the toilet body 2 at the upper side of the toilet body 2, and to prevent the water conduit 22 and drainage channel 17 that connect to the toilet body 2 from the back side of the wall W from being affected. The fixing point between the toilet body 2 and the fixing part 30 is not limited to being relatively high up on the toilet body 2, and can be set arbitrarily so long as it does not affect the rim water conduit 20, water conduit 22, or drainage channel 17 of the toilet body 2.

[0031] As shown in FIG. 6, the sensor unit 26 is provided on the load receiving member 24 at the rear of the toilet body 2. The sensor unit 26 is attached to the rear side of the support structure 28 (the side of the support structure 28 opposite the toilet body 2). A plurality of sensor units 26 are provided. For example, as shown in FIG. 6, the sensor units 26 may be provided in a total of six positions, one each at the upper portion of one vertical frame body 28a of the support structure 28, at the middle portion of the vertical frame body lower than the height position of the upper portion 2b of the rear portion 2a of the toilet body 2, and at the lower portion of the same vertical frame body, and one each at the upper portion of the other vertical frame body 28a, at the middle portion of the vertical frame body 28a lower than the upper portion 2b of the rear portion 2a of the toilet body 2, and at the lower portion of the vertical frame body 28a. In this case, the plurality of sensor units 26 are provided at positions symmetrical to the left and right with respect to the central cross section C (see FIG. 3 and FIG. 6) extending forward and backward from the toilet body 2. The sensor unit 26 does not necessarily need to be disposed symmetrically with respect to the central cross section C, and for example, a portion of the sensor unit 26 may be disposed asymmetrically with respect to the horizontal cross section of the fixed part 30. The sensor unit 26 may be disposed symmetrically with respect to the vertical direction with respect to any position, such as the horizontal cross section of the fixed part 30. The sensor unit 26 may be provided in a single unit rather than multiple units. At least a portion of the sensor unit 26 is provided at a position lower than the height position of the upper part 2b of the rear part 2a of the toilet body 2.

[0032] The sensor unit 26 is a strain gauge. When a stress is applied to the attached member, the sensor unit 26 measures the length strain (strain displacement amount [%]) that occurs in proportion to the stress with respect to the length of the member before the stress is applied as a parameter value. In this way, the sensor unit 26 measures the strain as a parameter corresponding to the load of the user. The sensor unit 26 is electrically connected to the control unit 27 (see FIG. 2). The sensor unit 26 transmits the measured parameter value to the control unit 27. The sensor unit 26 may be a pressure sensor that measures pressure as a parameter corresponding to the load of the user, or a load measuring device such as a spring scale that measures load as a parameter corresponding to the load of the user. In this way, measuring a parameter corresponding to a load includes directly measuring the load, so the load may be measured as a parameter corresponding to the load.

[0033] As a modified example, as shown in FIG. 7, the sensor unit 26 may be disposed between the support structure 28 and the wall W, for example, on the front surface of the support structure 28. In this case, the sensor unit 26 is provided at a position between the support structure 28, which is part of the load-receiving member 24 and rises vertically on the back side of the rear wall surface of the toilet body 2, and the rear part 2a of the toilet body 2. As in the first embodiment described above, a plurality of sensor units 26 can be provided, and they can be disposed at any position including the above examples. By providing the sensor unit 26 at a position separated from the fixed part of the toilet body 2 and the fixed part 30, the user's load can be easily applied to the sensor unit 26, and the measurement accuracy can be further improved. More preferably, by providing the sensor unit 26 at a position farther away from the fixed part of the toilet body 2 and the fixed part 30, the user's load can be more easily applied to the sensor unit 26.

[0034] As another modification, as shown in FIG. 8, the sensor unit 26 may be disposed between the wall W and the rear part 2a of the toilet body 2. For example, the sensor unit 26 may be attached to the part of the fixed part 30 on the front side (toilet body 2 side) of the wall W, or to the surface of another fixed member attached to the part of the fixed part 30. The sensor unit 26 may also be attached to another fixed member that receives the load of the toilet body 2 on the front side of the wall W. In this case, the sensor unit 26 is also provided at a position between the support structure 28 and the rear part 2a of the toilet body 2. As in the first embodiment described above, a plurality of sensor units 26 may be provided, and they may be disposed at any position including the above examples. By providing the sensor unit 26 at a position separated from the fixed part of the toilet body 2 and the fixed part 30, the load of the user is more likely to be applied to the sensor unit 26, and the measurement accuracy can be further improved. More preferably, by providing the sensor part 26 at a position farther away from the fixed point between the toilet body 2 and the fixed part 30, the weight of the user can be more easily applied to the sensor part 26.

[0035] In this embodiment, as shown in FIG. 2, the control unit 27 is disposed at the rear upper part on the toilet body 2. The control unit 27 is electrically connected to the water supply device 8 and the drain valve device 10 of the flush water tank device 4, the sanitary flushing system function unit (not shown), the sensor unit 26, and the operation unit 29. These electrical connections may be made in whole or in part by infrared communication, other wireless communication methods, or other connections via Internet lines. The control unit 27 may be disposed in a location physically separated from the toilet body 2 via the Internet, or may be provided in the form of a program on a server via the Internet. In this way, the control unit 27 may be formed on a server by being provided in the form of a program. In this embodiment, the control unit 27 incorporates a calculation device such as a CPU and a storage device such as a memory, and can control the electrically connected devices based on a predetermined control program, etc. For example, the control unit 27 stores in the storage device a control program for executing the small flush operation, the large flush operation, and the user load measurement operation of the flush toilet device 1.

[0036] The operation unit 29 is provided with an operation switch and a monitor, etc., and the operation switch, etc., allows the user to operate the start of the flushing operation and the start of the measurement of the user's load. The operation unit 29 can also display the measurement result of the user's load measurement. The operation unit 29 is provided on the wall W, etc., but may be provided on the toilet body 2. The operation unit 29 is electrically connected to the control unit 27, and can transmit the operation request command received by the operation unit 29 to the control unit 27, and can receive the load or weight of the user calculated by the control unit 27, and can further display the calculated result. The operation unit 29 may also be provided on another wall surface, or on another device connected by wireless communication such as infrared communication or other methods, or by connection through another Internet line.

[0037] Next, the operation of measuring the load of a user will be described with reference to FIG. 2, FIG. FIG. 9 is a diagram showing an example of the correlation between the amount of distortion displacement measured by the sensor section of the flush toilet apparatus according to the first embodiment of the invention and the weight of the user. The control unit 27 starts the user's load measurement operation in response to a user's operation to request load measurement on the operation unit 29. Note that the control unit 27 may automatically start the user's load measurement operation regardless of the user's request operation when it determines that the user is sitting on the toilet body 2 based on a change in the strain parameter value of the sensor unit 26, the determination results of other user detection sensors, etc.

[0038] When it is determined that the user is sitting on the toilet body 2, the control unit 27 causes the sensor unit 26 to measure the strain of the support structure 28 to which the sensor unit 26 is attached, and transmits the measured strain from the sensor unit 26 to the control unit 27. Based on the parameter value of the received strain, the control unit 27 calculates the load of the user acting on the load-receiving member 24, taking into consideration the structure and material of the load-receiving member 24, the position of the sensor unit 26, the manner in which the load is transmitted from the toilet body 2, and the like. The control unit 27 can also calculate the weight of the user from the load of the user acting on the load-receiving member 24, taking into consideration the user's posture, etc.

[0039] For example, the control unit 27 may calculate the weight of the user from the calculated load of the user, taking into consideration the user's posture during defecation, or may calculate the weight of the user from the load of the user measured with the user's feet off the floor F and with the entire weight on the toilet body 2. In this case, the control unit 27 may be provided with a weight measurement mode that prompts the user to remove the user's feet from the floor F and place the entire weight on the toilet body 2 in order to measure the weight. For example, the weight [kg] of the user can be calculated based on the distortion displacement amount [%] based on the correlation between the distortion displacement amount [%] and the user's weight [kg] as shown in FIG. 9. If the distortion displacement amount [%] increases, the weight [kg] also increases. In FIG. 9, the distortion displacement amount in the state of the toilet body 2 before the user uses it (state in which water is stored in the toilet body 2) is set to 0 [%], which is the origin. Also, the vertical axis shows the distortion displacement amount [%], and the horizontal axis shows the weight [kg]. Therefore, the load of the user can be measured from the amount of displacement of the strain. The control unit 27 can display the load and weight of the user thus obtained on the operation unit 29 to show it to the user.

[0040] Next, the following steps for forming a flush toilet device 1 according to this embodiment will be explained with reference to Figures 1 and 5. The toilet body 2, load-receiving member 24, sensor unit 26 (see Figure 6), etc. of the flush toilet device 1 are prepared. Additionally, preparations are also made for the wall W, such as forming openings etc. through which fixing parts 30 etc. can pass so that the load-receiving member 24 and toilet body 2 etc. can be attached.

[0041] Next, the load-receiving member 24 is placed so that the front side of the support structure 28 is in contact with the back surface of the wall W, and the base is fixed to the floor F. The fixing part 30 of the load-receiving member 24 extends to the front side through the wall W. The fixing part 30 is inserted into the upper part 2b of the rear part 2a of the toilet body 2, and the toilet body 2 is fixed to the fixing part 30 of the load-receiving member 24. As a result, the toilet body 2 is supported in a state where it is floating above the floor F, and is attached to the fixing part 30 of the load-receiving member 24, appearing to be attached to the wall W. The sensor unit 26 is attached to a predetermined position on the support structure 28 of the load-receiving member 24. In this way, the flush toilet device 1 is formed, and the toilet body 2 is installed on the wall W.

[0042] According to the flush toilet device 1 according to the first embodiment of the present invention described above, in a so-called wall-hung flush toilet device 1 in which the toilet body 2 is installed in a state where it is floating above the floor, the sensor unit 26 is installed on the load-receiving member 24 at the rear of the toilet body 2. As a result, in a so-called wall-hung flush toilet device 1, the sensor unit 26 is installed on the fixed load-receiving member 24, rather than a movable member such as the toilet seat, and so the user's load on the entire toilet portion can be measured relatively stably.

[0043] If the sensor unit 26 is positioned on the rear side of the support structure 28 that rises vertically on the rear side of the wall surface of the rear wall W of the toilet body 2, of the load-receiving member 24, there is a concern that if the thickness of the wall W becomes even thicker, the load will be more likely to be distributed across the wall surface of the wall W, making it difficult to stably measure the user's load. In contrast, according to the flush toilet device 1 of the first embodiment of the present invention described above, the sensor unit 26 is located between the support structure 28, which is part of the load-receiving member 24 and rises vertically on the back side of the surface of the rear wall W of the toilet body 2, and the rear part 2a of the toilet body 2. This makes it less susceptible to the influence of the thickness of the surface of the wall W compared to when the sensor unit 26 is located on the back side of the support structure 28, and allows for relatively stable measurement of the user's load.

[0044] According to the flush toilet apparatus 1 according to the first embodiment of the present invention described above, the sensor unit 26 is provided at a position lower than the height position of the upper part 2b of the rear part 2a of the toilet body 2, so when a user sits on the wall-hung toilet body 2, the weight is more likely to be applied to the sensor unit 26, allowing for more accurate measurement of the weight. Also, because the fixing part 30 that fixes the support structure 28 to the toilet body 2 is often attached at the height position of the upper part 2b of the rear part 2a of the toilet body 2, by providing the sensor unit 26 at a position lower and away from the height position of the upper part 2b of the rear part 2a of the toilet body 2, it is possible to make it less likely that the fixing part 30 will affect the measurement of the sensor unit 26, allowing for more accurate measurement of the load.

[0045] According to the flush toilet device 1 according to the first embodiment of the present invention described above, the sensor unit 26 is a strain gauge, which means that it can be provided relatively inexpensively compared to a pressure sensor and can measure the user's weight relatively accurately compared to a spring scale. Therefore, the sensor unit 26 can measure the user's weight relatively inexpensively and relatively accurately.

[0046] According to the flush toilet device 1 according to the first embodiment of the present invention described above, the user's weight can be measured more accurately based on the measurement results from the multiple sensor sections 26 provided.

[0047] According to the flush toilet device 1 according to the first embodiment of the present invention described above, the multiple sensor units 26 are arranged in positions that are symmetrical about the central cross section C that extends forward and backward from the toilet body 2. This allows the sensor units 26 to measure the user's load even more accurately, taking into account that the multiple sensor units 26 are subjected to different loads depending on the user's sitting position.

[0048] Next, a flush toilet apparatus 101 according to a second embodiment of the present invention will be described with reference to Figures 10 to 14. The flush toilet apparatus of the second embodiment differs from the first embodiment described above in that it is equipped with an abutment part that receives the weight of the toilet body. Here, only the differences between the second embodiment of the present invention and the first embodiment will be described, and similar parts will be given the same reference numbers in the drawings and will not be described again. As the structure of the flush water tank apparatus 4 and support structure 28 etc. in the second embodiment is similar to that of the first embodiment, illustration of the part above the height of the toilet body 2 is omitted in Figures 10 to 13, and the illustration focuses on the part below the height of the toilet body 2. Fig. 10 is a cross-sectional view showing a flush toilet device according to the second embodiment of the present invention placed against a wall, Fig. 11 is a perspective view showing the fixed part and abutment part etc. when the toilet body of the flush toilet device according to the second embodiment of the present invention has been removed from the wall, Fig. 12 is a front view showing the fixed part and abutment part etc. when the toilet body of the flush toilet device shown in Fig. 11 has been removed from the wall, Fig. 13 is an exploded perspective view showing the abutment part further disassembled from Fig. 11, and Fig. 14 is a diagram showing an example of the correlation between the amount of strain displacement measured by the sensor part of the flush toilet device according to the second embodiment of the present invention and the user's weight.

[0049] As shown in Figures 10 and 11, etc., the flush toilet device 101 according to the second embodiment comprises a toilet body 2 of a so-called wall-hung flush toilet, and a load-receiving member 124 which is provided at the rear of the toilet body 2 so that the toilet body 2 is provided in a floating state above the floor F, and which receives the load of the toilet body 2.

[0050] The load-receiving member 124 comprises a support structure 28 that rises vertically on the back side of the wall W, which is the rear wall surface of the toilet body 2, a fixed part 30 that is fixed to an upper part 2b of the rear part 2a of the toilet body 2 so as to support the toilet body 2, and an abutment part 132 that abuts against the rear part 2a of the toilet body 2 below the fixed part 30 and receives the load of the toilet body 2. Note that it is sufficient that the abutment part 132 and the opening 134 are provided in a position away from the fixed part 30, and when the fixed part 30 is positioned on the lower side, the abutment part 132 and the opening 134 may be provided on the upper side of the fixed part 30, and the abutment part 132 may be positioned so as to abut against the rear part 2a of the toilet body 2.

[0051] As shown in FIG. 13, the abutment portion 132 of the load-receiving member 124 extends from the support structure 28 on the back side of the wall surface to the rear part 2a of the toilet body 2 on the front side through an opening 134 formed in the wall W at the rear of the toilet body 2. The abutment portion 132 has a rectangular flat abutment surface with a horizontal dimension longer than a vertical dimension. The abutment portion 132 is formed with this abutment surface facing the toilet body 2. The abutment portion 132 is disposed between the two fixing portions 30 in a top view. The abutment portion 132 is disposed at a position closer to the toilet body 2 than the wall surface of the wall W in a top view. This allows the rear part 2a of the toilet body 2, for example the lower part of the rear part 2a, to abut against the abutment portion 132 before abutting against the wall W, allowing the toilet body 2 to be properly attached, when the toilet body 2 is moved horizontally toward the wall W for installation. In this embodiment, the abutment portion 132 is formed in a rectangular shape with a horizontal dimension longer than its vertical dimension, but the shape of the abutment portion 132 can be changed appropriately to suit the arrangement of each component at the rear of the toilet body 2. Also, multiple abutment portions 132 may be provided within the area within the range of the rear wall W of the toilet body 2, and for example, abutment portions 132 formed in a rectangular shape with a vertical dimension longer may be provided in a total of two locations, one on each side of the drainage flow path 17 as the center.

[0052] In addition, the abutment portion 132 is provided at a position below the fixed portion 30. As a result, when the toilet body 2 is fixed to the fixed portion 30 and the user's weight is applied to the toilet body 2, the rear portion 2a of the toilet body 2, for example the lower portion of the rear portion 2a, receives a moment force centered on the fixed portion 30 and abuts against the abutment portion 132 before abutting against the wall W. Therefore, a part of the load of the user and the toilet body 2 is applied from the toilet body 2 to the abutment portion 132. Therefore, the abutment portion 132 is adapted to receive the load of the toilet body 2. In this embodiment, the abutment portion 132 is provided below the fixed portion 30 and below the drainage flow path 17. The horizontal dimension of the abutment portion 132 is longer than the maximum horizontal dimension of the piping of the drainage flow path 17 and shorter than the distance between the two fixed portions 30. By providing the abutment portion 132 with such a horizontal dimension, the load of the user on the toilet body 2 can be measured while reducing the influence of the fixed portion 30 and the drainage flow path 17. The horizontal dimension of the contact portion 132 is not limited to this embodiment, and can be set appropriately to a length suitable for measuring the load of a user on the toilet body 2.

[0053] The abutment portion 132 extends from the support structure 28 through the opening 134 to the rear portion 2a of the toilet body 2. The abutment portion 132 is formed to have a size and shape smaller than the size of the opening 134. The abutment portion 132 is positioned so as not to abut against the opening 134 in the wall W.

[0054] The sensor unit 26 is provided on the abutment portion 132 of the load receiving member 24 at the rear of the toilet body 2. More specifically, the sensor unit 26 is attached to the rear surface of the abutment portion 132 (the rear surface of the abutment portion 132 opposite the toilet body 2). Such a sensor unit 26 is provided at a position between the support structure 28 and the rear portion 2a of the toilet body 2. The sensor unit 26 is provided at a position lower than the height position of the upper portion 2b of the rear portion 2a of the toilet body 2. As shown in FIG. 12, the sensor unit 26 is provided horizontally (in an arrangement in which the horizontal direction of the sensor unit 26 is longer than the vertical direction) near the center of the rear surface of the abutment portion 132, but the sensor unit 26 may be provided on the lower side of the rear surface of the abutment portion 132. By providing the sensor unit 26 on the lower side of the abutment portion 132, the sensor unit 26 can measure the load with even greater accuracy. Furthermore, the sensor unit 26 may be provided vertically (in an arrangement in which the vertical direction of the sensor unit 26 is longer than the horizontal direction) from the top to the bottom of the rear surface of the abutment portion 132. The sensor unit 26 may be provided in either the horizontal or vertical direction, regardless of the installation position.

[0055] A plurality of sensor units 26 are provided. For example, as shown in Figs. 12 and 13, the sensor units 26 are arranged one by one on the right and left sides of the rear side (back side) of the contact unit 132. The sensor units 26 may be arranged one by one on the contact unit 132, for example, one may be arranged in the center part in the left-right direction of the contact unit 132. In this case, the plurality of sensor units 26 are arranged in positions symmetrical with respect to a central cross section C (see Fig. 12) extending from the front to the rear of the toilet body 2. The sensor units 26 do not necessarily have to be arranged in positions symmetrical with respect to the central cross section C, and may be arranged, for example, in positions asymmetrical with respect to the rear side of the contact unit 132. The sensor units 26 may be arranged in positions symmetrical with respect to an arbitrary position such as the support shaft of the contact unit 132.

[0056] As shown in FIG. 14, the control unit 27 may further include a mode for calculating the average of the parameter values ​​measured by the multiple sensor units 26, and calculating the load or weight of the user based on the calculated average value. In FIG. 14, the amount of distortion displacement in the state of the toilet body 2 before use by the user is set to 0 [%], which is the origin. The amount of distortion displacement [%] is shown on the vertical axis, and the weight [kg] is shown on the horizontal axis. For example, in FIG. 14, the amount of distortion displacement [%] measured by the sensor unit on the right side as viewed from the toilet body side is shown for three cases: light, medium, and heavy weight. This measurement value varies with an error within a range of approximately A% with respect to the linear theoretical value line L1 showing the correlation between the amount of distortion displacement [%] and the weight [kg] of the user in the sensor unit on the right side as viewed from the toilet body side. The error within the range of A% is, for example, an error within a range of 3% to 5%. Similarly, the strain displacement amount [%] measured by the sensor unit on the left side as viewed from the toilet body side is shown for three cases: light, medium, and heavy body weight. This measured value varies with an error within a range of approximately A% with respect to the linear theoretical value line L2 showing the correlation between the strain displacement amount [%] and the user's body weight [kg] at the sensor unit on the left side as viewed from the toilet body side. In contrast, in FIG. 14, the average strain displacement amount [%] calculated by averaging the strain displacement amount [%] measured by the sensor unit on the left side and the strain displacement amount [%] measured by the sensor unit on the right side is shown for three cases: light, medium, and heavy body weight. The average strain displacement amount [%] varies with an error within a range of approximately B% with respect to the linear theoretical value line L3 showing the correlation between the average strain displacement amount [%] and the user's body weight [kg]. In this case, the value of B is smaller than the value of A. The error within the range of B% is, for example, an error within a range of 0.1% to 2%.

[0057] In this way, by calculating the average strain displacement amount [%] and calculating the weight [kg] based on this average value, the error of the calculated weight value can be reduced compared to the case where the average value is not used. The control unit 27 is not limited to the measurement values ​​of the two sensor units 26, but can use the average value of the measurement values ​​of the multiple sensor units 26. For convenience of explanation, in the second embodiment, the control unit 27 is described as having a mode for calculating the load or weight of the user based on such a calculated average value, but in the first, third and fourth embodiments, the control unit 27 can also have a similar mode.

[0058] According to the flush toilet apparatus 101 according to the second embodiment of the present invention described above, the abutment portion 132 extends from the back side of the wall to the rear part 2a of the toilet body 2 on the front side, through an opening 134 formed in the wall surface of the rear wall W of the toilet body 2, and the sensor portion 26 is provided in the abutment portion 132, so that even if the material or thickness of the member constituting the rear wall surface of the toilet body 2 is arbitrarily changed, the measurements of the sensor portion 26 are less likely to be affected by changes in the material or thickness of the wall surface, and the sensor portion 26 can measure the user's load more reliably.

[0059] Next, a flush toilet apparatus 201 according to a third embodiment of the present invention will be described with reference to Figs. 15 and 16. The flush toilet apparatus of the third embodiment differs from the first embodiment described above in that it is equipped with a fixing auxiliary member that assists in fixing the toilet body 2. Here, only the differences between the third embodiment of the present invention and the first embodiment will be described, and similar parts will be given the same reference numbers in the drawings and will not be described. In Fig. 15, because the structure of the flush water tank apparatus 4 and support structure 28 according to the third embodiment is the same as that of the first embodiment, the parts above the height of the toilet body 2 are omitted, and the parts below the height of the toilet body 2 are mainly illustrated. Fig. 15 is an exploded perspective view showing the toilet body, fixing auxiliary member, load-receiving member, etc. of a flush toilet apparatus according to the third embodiment of the present invention in a state where they are disassembled relative to the wall, and Fig. 16 is a schematic diagram showing a modified example of a flush toilet apparatus according to the third embodiment of the present invention.

[0060] As shown in Figure 15, the flush toilet device 201 according to the third embodiment comprises a toilet body 2 of a so-called wall-hung flush toilet, and a load-receiving member 24 which is provided at the rear of the toilet body 2 so that the toilet body 2 is provided in a floating state above the floor F, and which receives the load of the toilet body 2.

[0061] The load-receiving member 24 includes a support structure 28 that rises vertically on the back side of the wall surface of the rear wall W of the toilet body 2 of the load-receiving member 24, a fixing part 30 that is fixed to the upper part 2b of the rear part 2a of the toilet body 2 so as to support the toilet body 2, and a fixing auxiliary member 236 that assists in fixing the toilet body 2 between the wall surface of the rear wall W of the toilet body 2 and the toilet body 2.

[0062] The fixing part 30 is a main fixing member that receives more than half of the load of the toilet body 2 and fixes the rear part 2a of the toilet body 2, whereas the fixing auxiliary member 236 is formed as a separate member from the fixing part 30 and is formed to assist in fixing the rear part 2a of the toilet body 2. The fixing auxiliary member 236 is formed as an auxiliary member that receives a load smaller than the load received by the fixing part 30, for example, a load less than half of the load of the toilet body 2. The fixing auxiliary member 236 has a function of assisting fixing so that the positioning of the toilet body 2 or the attachment to the drainage flow path 17, the water guide pipe 22, etc. is easier when fixing the toilet body 2 to the fixing part 30. The fixing auxiliary member 236 is adapted to receive part of the load of the toilet body 2 between the rear part 2a of the toilet body 2 and the wall W. The fixing auxiliary member 236 is formed in a trapezoid shape with a bottom side shorter than the top side. The fixing auxiliary member 236 is formed in a plate shape. The fixed auxiliary member 236 has a rib that rises from part of its outer periphery toward the wall W, forming a space on the rear side, and is configured so that the sensor unit 26 can be positioned on the rear side (back side) of the fixed auxiliary member 236 when the fixed auxiliary member 236 is attached to the wall W.

[0063] The fixing auxiliary member 236 has a through-hole portion 238 through which the fixing portion 30 passes, a water pipe outlet portion 240 connected to the water pipe 22 , and a drainage flow path inlet portion 242 connected to the drainage flow path 17 .

[0064] The through hole portion 238 is configured so that the position and posture of the auxiliary fixing member 236 are determined with the fixing portion 30 passing through the through hole portion 238 .

[0065] The water conduit outlet 240 of the fixing auxiliary member 236 is adapted to be connected to the rim water passage 20 when the fixing part 30 and the toilet body 2 are fixed. Because the position of the water conduit outlet 240 relative to the through-hole part 238 is predetermined, it can be easily aligned with the rim water passage 20 of the toilet body 2. The drainage flow path inlet 242 of the fixing auxiliary member 236 is adapted to be connected to the drain trap pipe 16 when the fixing part 30 and the toilet body 2 are fixed. Because the position of the drainage flow path inlet 242 relative to the through-hole part 238 is predetermined, it can be easily aligned with the drain trap pipe 16 of the toilet body 2.

[0066] The sensor unit 26 is provided on the fixed auxiliary member 236. More specifically, the sensor unit 26 is attached to the surface on the rear side of the fixed auxiliary member 236 (the back side of the fixed auxiliary member 236 opposite the toilet body 2). In FIG. 15, the sensor unit 26 is located on the surface on the rear side of the fixed auxiliary member 236, and so its position is indicated by a dashed line. Therefore, the sensor unit 26 is provided at a position between the support structure 28 and the rear part 2a of the toilet body 2. The sensor unit 26 is also provided at a position lower than the height position of the upper part 2b of the rear part 2a of the toilet body 2.

[0067] A plurality of sensor units 26 are provided. For example, as shown in FIG. 15, a total of four sensor units 26 are provided, one each at the right and left parts of the upper part of the rear side of the fixing auxiliary member 236, and one each at the right and left parts of the lower part of the rear side. The number of sensor units 26 does not necessarily have to be multiple, and one may be provided at the center part of the lower part of the rear side of the fixing auxiliary member 236. In this case, the plurality of sensor units 26 are provided at positions symmetrical to the left and right with respect to a central cross section C (see FIG. 3) extending from the front to the rear of the toilet body 2. The sensor units 26 do not necessarily have to be provided at positions symmetrical to the left and right with respect to the central cross section C, and may be provided at positions asymmetrical to the left and right on the rear side of the fixing auxiliary member 236, for example. The sensor units 26 may also be provided at positions symmetrical to the top and bottom with respect to any position, such as a horizontal cross section passing through the fixing part 30 of the fixing auxiliary member 236.

[0068] According to the flush toilet apparatus 201 according to the third embodiment of the present invention described above, the sensor unit 26 is provided on a fixed auxiliary member 236, which makes it possible for the measurement by the sensor unit 26 to be less affected by changes in the material or thickness of the wall surface of the wall W, which can result from changes in the material or thickness of the wall surface of the wall W, enabling the sensor unit 26 to measure the user's load more stably.

[0069] Next, a flush toilet device 301 according to a fourth embodiment of the present invention will be described with reference to Figures 17 and 18. The flush toilet device of the fourth embodiment differs from the first embodiment described above in that the flush toilet device is placed against a cover panel that forms the wall surface. Only the differences between the fourth embodiment of the present invention and the first embodiment will be described here, and similar parts will be given the same reference symbols in the drawings and will not be described again. Figure 17 is a perspective view showing a flush toilet device according to the fourth embodiment of the present invention placed against a cover panel, and Figure 18 is a side view showing from the side a flush toilet device according to the fourth embodiment of the present invention placed against a cover panel.

[0070] As shown in Figures 17 and 18, the rear wall surface of the toilet body 2 of a flush toilet apparatus 301 according to the fourth embodiment is formed by a cover panel P that covers the front side of the support structure 28 of the load-receiving member 24. The toilet body 2 is therefore fixed to the cover panel P side and provided in a floating state above the floor F; the toilet body 2 of a wall-hung flush toilet is attached exclusively to the load-receiving member 24 on the wall surface side.

[0071] The cover panel P forms the rear wall surface of the toilet body 2, separate from the wall W. The cover panel P is an internal fixture structure formed inside a room. The cover panel P is formed as part of the fixture that covers the load-receiving member 24 so as to hide it from the front side of the toilet body 2. For example, the cover panel P forms part of a shelf, part of a storage space, or part of another type of cover, etc.

[0072] Since the toilet body 2 is fixed to the fixing portion 30 of the load-receiving member 24, the cover panel P does not need to have enough strength to fix the toilet body 2. Therefore, the cover panel P can form a simple cover for the load-receiving member 24. The cover panel P is a thin decorative plate. The cover panel P is not limited to a structural wall that divides a room, and various materials and members can be used as long as it forms a wall-like wall surface (not limited to the entire wall, but only necessary to form a part of the surface). In this way, the flush toilet device 301 is equipped with a toilet body 2 of a so-called wall-hung flush toilet, but the toilet body 2 is not limited to one that is attached to a wall W, and includes one that is attached to a cover panel P. The cover panel P as shown in the fourth embodiment can be applied to each of the first, second and third embodiments in place of the wall W as shown in the first, second and third embodiments.

[0073] In this case, the load-receiving member 24 is provided with a support structure 28 that rises vertically on the back side of the cover panel P at the rear of the toilet body 2 of the load-receiving member 24. The support structure 28 has enough strength to support the weight of the toilet body 2 (including the flushing water and the like in the toilet body 2) and the user from the back side of the cover panel P. The support structure 28 is positioned so that its vertical frame body abuts against the back side of the wall surface of the cover panel P.

[0074] The fixing part 30 is a relatively large-diameter and long bolt that extends from the support structure 28 on the back side of the cover panel P to the rear part 2a of the toilet body 2 on the front side. The fixing part 30 has enough strength to support the weight of the toilet body 2 and the user from the back side of the cover panel P. As only the toilet body 2 and the cover panel P are visible from the front side of the toilet body 2, it appears as if the toilet body 2 is fixed to the wall surface of the cover panel P.

[0075] The sensor unit 26 is provided on the load-receiving member 24 at the rear of the toilet body 2. The sensor unit 26 is attached to a predetermined position on the rear side of the support structure 28. At least a part of the sensor unit 26 is provided at a position lower than the height position of the upper part 2b of the rear part 2a of the toilet body 2. The sensor unit 26 may be disposed on the front surface of the support structure 28, that is, between the support structure 28 and the cover panel P. The sensor unit 26 may also be provided at a position between the cover panel P and the rear part 2a of the toilet body 2.

[0076] According to the flush toilet apparatus 301 according to the fourth embodiment of the present invention described above, when the wall surface of the rear wall W of the toilet body 2 is formed by a cover panel P that covers the front side of the support structure 28, the sensor unit 26 is provided in a position between the cover panel P and the rear part 2a of the toilet body 2. As a result, even when the cover panel P is provided to make the support structure 28 less visible to users, compared to when the sensor unit 26 is located on the back side of the cover panel P, the measurement of the sensor unit 26 is less likely to be affected by the installation of the cover panel P, and the sensor unit 26 can measure the user's load in a relatively stable manner. [Explanation of symbols]

[0077] 1 Flush toilet device 2 Toilet bowl body 2a rear 2b upper part 3. Toilet seat 24 Load-bearing member 26 Sensor section 28 Support structure 30 Fixed part 101 Flush toilet device 124 Load-bearing member 132 Contact part 134 Aperture 201 Flush toilet device 236 Fixing auxiliary parts 301 Flush toilet device

Claims

1. A flush toilet device that is flushed with flush water supplied from a flush water source to discharge waste, A toilet body that can be used while the user is sitting down; a load-receiving member that is provided behind the toilet body and receives the load of the toilet body so that the toilet body is provided in a floating state above the floor; a sensor unit for measuring a parameter corresponding to the load of a user using the toilet body, A flush toilet apparatus, wherein the sensor portion is provided on the load-receiving member at the rear of the toilet body.

2. 2. The flush toilet apparatus according to claim 1, wherein the sensor unit is provided at a position between a support structure of the load-receiving member that rises vertically on the back side of a rear wall of the toilet body, and the rear of the toilet body.

3. 3. The flush toilet apparatus according to claim 1, wherein the sensor unit is provided at a position lower than the height position of an upper portion of the rear part of the toilet main body.

4. 3. The flush toilet apparatus according to claim 2, wherein a rear wall surface of the toilet body is formed by a cover panel that covers the front side of the support structure, and the sensor unit is provided in a position between the cover panel and the rear of the toilet body.

5. The load-receiving member has a fixed portion that is fixed to a rear portion of the toilet body so as to support the toilet body; a contact portion below the fixed portion that contacts the rear portion of the toilet body and receives the load of the toilet body; The abutment portion of the load-receiving member extends from the rear side of the wall surface to the rear part of the toilet body on the front side through an opening formed in the rear wall surface of the toilet body, The flush toilet apparatus according to any one of claims 1 to 4, wherein the sensor portion is provided on the contact portion.

6. The load-receiving member includes a fixing auxiliary member between the rear wall surface of the toilet body and the toilet body, the fixing auxiliary member assisting in fixing the toilet body, The flush toilet apparatus according to any one of claims 1 to 4, wherein the sensor portion is provided on the auxiliary fixing member.

7. 7. The flush toilet apparatus according to claim 1, wherein the sensor unit is a strain gauge.

8. The flush toilet apparatus according to any one of claims 1 to 7, wherein a plurality of the sensor units are provided.

9. 9. The flush toilet apparatus according to claim 8, wherein a plurality of the sensor units are disposed at positions symmetrical on the left and right sides with respect to a central cross section extending from the front to the rear of the toilet body.

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