Toilet seat device

Abstract

To suppress influence of washing by a washing nozzle on detection of excrement.SOLUTION: A toilet seat device 5 comprises: a toilet seat disposed on a rim of a toilet bowl; a body part 11 connected to the toilet seat; a washing nozzle 14 that can move forward to and backward from the toilet seat side with respect to the body part 11 and discharges washing water toward a user sitting on the toilet seat; an irradiation part 17 that is provided on the body part 11 and radiates a laser beam toward the toilet seat; a detection part 18 that is provided on the body part 11 and detects a reflection light of the laser beam radiated from the irradiation part 17; and a shielding wall 21 as a guard part 20 that guards at least any one of the irradiation part 17 and the detection part 18 from the nozzle washing water discharged to wash the washing nozzle 14 in a state of being stored in the body part 11.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to a toilet seat apparatus. [Background technology]

[0002] A toilet seat apparatus equipped with a washing nozzle for washing the private parts of the body of a user of the toilet apparatus has been devised (for example, Patent Document 1). For example, washing is performed inside the washing nozzle, which is provided in a housing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-070431 A Summary of the Invention [Problem to be solved by the invention]

[0004] Some toilet devices have a function to detect excrement for health management, for example. In toilet devices with such a detection function, when cleaning the cleaning nozzle, water may splash inside the housing. If the splashed water adheres to the part for detecting excrement, it may affect the detection accuracy.

[0005] In view of the above problems, an object of the present disclosure is to provide a toilet seat apparatus that can suppress the effect of the cleaning of the cleaning nozzle on excrement detection. [Means for solving the problem]

[0006] In order to solve the above problems, the toilet seat device according to the first aspect of the present disclosure comprises a toilet seat to be placed on the rim of a toilet bowl, a main body connected to the toilet seat, a nozzle capable of advancing and retreating toward the toilet seat relative to the main body and ejecting cleaning water toward a user seated on the toilet seat, an irradiation unit provided on the main body for irradiating laser light toward the toilet bowl, a detection unit provided on the main body for detecting reflected light of the laser light irradiated from the irradiation unit, and a guard unit for protecting at least one of the irradiation unit and the detection unit from nozzle cleaning water ejected to clean the nozzle while contained in the main body.

[0007] According to this configuration, the guard portion protects the irradiation portion and the detection portion from the nozzle cleaning water that cleans the nozzle inside the main body, thereby preventing the nozzle cleaning water from adhering to the irradiation portion and the detection portion, thereby preventing deterioration of the detection function of the irradiation portion and the detection portion.

[0008] Also, the toilet seat apparatus according to a second aspect of the present disclosure further includes a cleaning section that ejects nozzle cleaning water to the nozzle in a state in which the nozzle is housed in the main body section.

[0009] According to this configuration, even when nozzle cleaning water is discharged from the cleaning section, the irradiation section and the detection section can be guarded by the guard section.

[0010] In addition, in the toilet seat apparatus according to the third aspect of the present disclosure, the irradiation unit and the detection unit are provided on either side of the nozzle in the main body.

[0011] According to this configuration, the irradiation unit and the detection unit are provided on either side of the nozzle, so that interference between the irradiated laser light and the reflected laser light can be suppressed.

[0012] In addition, in the toilet seat device according to the fourth aspect of the present disclosure, the irradiation unit and the detection unit are housed in the main body, and the guard unit is a shielding wall provided inside the main body and separating the nozzle housed in the main body from the irradiation unit and the detection unit.

[0013] According to this configuration, the irradiation unit and the detection unit can be protected from the nozzle cleaning water by being partitioned by the shielding wall.

[0014] In addition, in a toilet seat device according to a fifth aspect of the present disclosure, the guard portion is constituted by the shielding wall and seals the area inside the main body portion in which the nozzle is provided from other areas inside the main body portion.

[0015] According to this configuration, by sealing the area in which the nozzle is provided from other areas inside the main body, it is possible to effectively prevent the nozzle cleaning water from reaching the irradiation section or the detection section.

[0016] In addition, in a toilet seat device according to a sixth aspect of the present disclosure, the guard portion is a convex portion formed on the toilet bowl side surface of the main body portion below the housed nozzle, extending downwardly below the upper surface of the rim, a hole is provided in the convex portion, and the irradiation portion and the detection portion are arranged between the rim and the convex portion.

[0017] With this configuration, even if the nozzle cleaning water is discharged outside the convex portion through a hole in the convex portion, the nozzle cleaning water can be prevented from reaching the irradiation portion or the detection portion by providing an irradiation portion and a detection portion between the rim and the convex portion.

[0018] In addition, in the toilet seat device according to the seventh aspect of the present disclosure, the guard portion is a protrusion formed on the toilet bowl side surface of the main body between the convex portion and the illumination portion and the detection portion.

[0019] According to this configuration, even if the nozzle cleaning water runs down the outer surface of the convex portion, the protrusion can prevent the nozzle cleaning water from reaching the irradiation portion or the detection portion.

[0020] In addition, in a toilet seat device according to an eighth aspect of the present disclosure, the illumination unit and the detection unit are provided on the outer side of the toilet bowl side surface of the main body, and the guard unit is formed by that surface of the main body.

[0021] With this configuration, the nozzle is housed inside the main body, and the irradiation unit and detection unit are positioned outside the main body, thereby preventing nozzle cleaning water from reaching the irradiation unit or the detection unit.

[0022] In addition, in the toilet seat device according to the ninth aspect of the present disclosure, a hole is provided on the toilet bowl side surface of the main body below the housed nozzle, and the guard portion is a protrusion formed on the toilet bowl side surface of the main body between the hole and the illumination portion and the detection portion.

[0023] According to this configuration, even if the nozzle cleaning water runs down the outer surface of the main body, the protrusion can prevent the nozzle cleaning water from reaching the irradiation unit or the detection unit. Effect of the Invention

[0024] According to the toilet seat apparatus according to the present disclosure, the effect of water discharged from the cleaning nozzle on excrement detection can be suppressed. [Brief description of the drawings]

[0025] [Figure 1] 1 is a perspective view showing an example of an overall configuration of a toilet system according to a first embodiment of the present disclosure. FIG. [Diagram 2] FIG. 2 is a plan view showing a schematic configuration of the toilet device in FIG. [Diagram 3] 2 is a diagram showing the emission and reflection of laser light by an irradiation unit and a detection unit in FIG. 1. [Figure 4] 2 is a cross-sectional view showing an example of the configuration of a main body around the cleaning nozzle in FIG. 1 as viewed from the left. FIG. [Diagram 5] 2 is a cross-sectional view showing a configuration example of the main body part in FIG. 1 as viewed from the front. [Figure 6]FIG. 4 is a plan view showing a schematic configuration of a toilet device according to a second embodiment of the present disclosure. [Figure 7] 4 is a cross-sectional view showing an example of the configuration of the main body around the cleaning nozzle as viewed from the left. FIG. [Figure 8] 11 is a cross-sectional view showing a configuration example of a main body of a toilet device according to a second embodiment of the present disclosure, as viewed from the front. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, each embodiment of the present disclosure will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same components in each drawing are denoted by the same reference numerals as much as possible, and duplicated description will be omitted.

[0027] ---First embodiment--- First, the first embodiment will be described.

[0028] <Overall composition> Fig. 1 is a perspective view showing a schematic example of the overall configuration of a toilet system 1 according to a first embodiment of the present disclosure. As shown in Fig. 1, the toilet system 1 includes a toilet device 2 and an operating device 3. The toilet device 2 and the operating device 3 are provided in, for example, a toilet room R. In the toilet room R, the toilet device 2 is installed on a floor surface F. When viewed from the perspective of a user seated on a toilet seat 13 (described below), the front is the "front", the rear is the "rear", the left is the "left", the right is the "right", the vertically upward is the "up", and the vertically downward is the "down".

[0029] The toilet device 2 is a device for treating excrement of a user. The toilet device 2 mainly includes a toilet bowl 4, a toilet seat device 5, and an excretion management device 7.

[0030] The toilet bowl 4 is, for example, a ceramic toilet bowl. The toilet bowl 4 is formed with a bowl portion 8. The bowl portion 8 is a downwardly concave shape, and is a toilet bowl that receives the user's excrement. The toilet bowl 4 is not limited to a floor-standing type as shown in the figure, but may be a wall-hanging type or other type. The toilet bowl 4 is provided with a rim 10 around the entire periphery of the end of the opening that faces the bowl portion 8. In the toilet room R, for example, a flush water tank that stores flush water may be installed near the toilet bowl 4, or a so-called tankless type in which no flush water tank is installed may be used. For example, a user operates an operating lever operating device to supply flush water to the bowl portion 8 of the toilet bowl 4, and the toilet flush is performed.

[0031] The toilet seat device 5 is attached to the top of the toilet bowl 4, and includes a main body 11, a toilet lid 12, a toilet seat 13, a flushing nozzle 14, and an excretion detection unit 15. The toilet seat device 5 may be detachably attached to the toilet bowl 4, or may be attached so as to be integrated with the toilet bowl 4. The toilet seat device 5 is placed on the top of the toilet bowl 4 so that the flushing nozzle 14 advances into the bowl portion 8 before spraying flushing water.

[0032] The main body 11 is a casing that is placed on the rim 10 on the toilet bowl 4 where the bowl portion 8 is not formed. The main body 11 is attached and fixed to the toilet bowl 4. The main body 11 is connected to the toilet lid 12, and is rotatable around a pivotal portion relative to the main body 11. The main body 11 is also connected to the toilet seat 13, and is rotatable around a pivotal portion relative to the main body 11. This allows the toilet lid 12 and the toilet seat 13 to be opened and closed relative to the toilet bowl 4.

[0033] The toilet lid 12 is a lid body connected to the main body 11. By rotating the toilet lid 12 relative to the main body 11, the bowl portion 8 can be blocked when closed, and the bowl portion 8 can be released when opened. The toilet lid 12 may be omitted.

[0034] The toilet seat 13 is a portion on which a user sits. The toilet seat 13 functions as a seating portion that supports the buttocks of a seated user. The toilet seat 13 is an annular member having an opening 16 in the center. The toilet seat 13 is placed on the rim 10 and positioned relative to the toilet bowl 4 so that the bowl portion 8 and the opening 16 of the toilet seat 13 overlap, i.e., so that the toilet seat 13 is placed on the rim 10 and the annular portion of the toilet seat 13 overlaps with the rim 10. Therefore, a user seated on the toilet seat 13 can excrete into the bowl portion 8 of the toilet bowl 4.

[0035] The cleaning nozzle 14 is a nozzle for discharging water for cleaning (cleaning water). The cleaning nozzle 14 is a nozzle for cleaning private parts that can spray cleaning water toward a user who is seated on the toilet seat 13. The number of cleaning nozzles 14 is not limited. The cleaning nozzle 14 is configured to be able to advance and retreat toward the toilet seat 13 side with respect to the housing of the main body 11 by driving a driving source such as an electric motor. The cleaning nozzle 14 is also connected to a water source such as a water pipe (not shown). FIG. 1 shows a state in which the cleaning nozzle 14 is in an advanced position where it is advanced relative to the housing of the main body 11, and when the cleaning nozzle 14 is in the advanced position, it sprays water from the water source onto the user's body to clean the private parts. The cleaning nozzle 14 may be capable of cleaning the toilet bowl 4.

[0036] The excretion detection unit 15 is a sensor that detects excretion excreted in the bowl portion 8. Information detected by the excretion detection unit 15 is output to the excretion management device 7. FIG. 2 is a plan view showing a schematic configuration of the toilet device 2 in FIG. 1. As shown in FIG. 2, the excretion detection unit 15 is configured using an irradiation unit 17 and a detection unit 18.

[0037] The irradiation unit 17 is provided in the main body 11 and irradiates the laser light toward the bowl portion 8. FIG. 3 is a diagram showing the emission and reflection of the laser light. Specifically, the irradiation unit 17 irradiates the laser light downward from an opening in the bottom plate 11a of the main body 11, thereby irradiating the laser light toward the excrement excreted in the bowl portion 8. The irradiation unit 17 is a unitized configuration for irradiating the laser light, such as a laser emitting device or a prism. The surface from which the laser light is irradiated to the outside from the irradiation unit 17 is called the "radiation surface 17a". The radiation surface 17a faces the bowl portion 8 side from the main body 11. The irradiation unit 17 is provided inside the main body 11 so that the radiation surface 17a is exposed to the outside from the opening in the bottom plate 11a of the main body 11.

[0038] The detection unit 18 is provided in the main body 11 and detects the reflected light of the laser light irradiated from the irradiation unit 17. Specifically, the detection unit 18 detects the reflected light of the laser light reflected by the excrement in the bowl portion 8. The detection unit 18 is a unitized configuration for detecting the laser light, such as a focusing lens and a detection sensor (CMOS). The surface of the detection unit 18 that receives the reflected light from the outside is called the "light receiving surface 18a." The light receiving surface 18a faces the bowl portion 8 side from the main body 11. The detection unit 18 is provided inside the main body 11 so that the light receiving surface 18a is exposed to the outside from an opening in the bottom plate 11a of the main body 11.

[0039] 2, the irradiation unit 17 and the detection unit 18 are provided on the left and right sides of the cleaning nozzle 14 in the main body 11. That is, the cleaning nozzle 14 is disposed between the irradiation unit 17 and the detection unit 18 so that the cleaning nozzle 14 is located between them when stored.

[0040] Returning to FIG. 1, the excretion management device 7 is an information processing device that processes the user's excrement, and includes, for example, a CPU, memory, a communication unit, a storage device, etc. The excretion management device 7 judges the state of the excretion based on information detected by the excretion detection unit 15. The state refers to the state of the excretion, such as the presence or absence of excretion, color, amount, flow rate (amount of excretion per unit time), urination time (defecation time), shape, properties, etc. The state can be set appropriately depending on the purpose, such as health observation. Furthermore, the method of calculating the state of urine and feces based on the excretion detection unit 15 is not limited, and various methods can be applied.

[0041] The excretion management device 7 records (stores) the results of the excretion judgment. This allows excretion recording. The excretion record can be checked by the user, etc. The excretion record may be recorded in the excretion management device 7 or in a server, and the recording location is not limited. In this embodiment, the excretion management device 7 is provided in the toilet seat device 5, for example, as an example, but the location where the excretion management device 7 is provided is not limited.

[0042] The operating device 3 is provided, for example, on a wall surface of the toilet room R. The operating device 3 is provided in a position where a user can operate it, for example, where the user can operate it when seated on the toilet seat 13. For example, the operating device 3 may be provided integrally with the toilet seat device 5. The operating device 3 is capable of wired or wireless communication with the toilet seat device 5 and the like, and is capable of sending and receiving information. The operating device 3 accepts various operations from the user via a touch panel or buttons, and executes processing.

[0043] <Configuration of guard portion 20> FIG. 4 shows a cross-sectional view of the main body 11 around the cleaning nozzle 14 as viewed from the left. The cleaning nozzle 14 is cleaned while housed in the main body 11. That is, when advancing, the shutter 19 opens and the cleaning nozzle 14 advances forward, and when retreating, the cleaning nozzle 14 retreats backward and the shutter 19 closes to be housed. In this way, the cleaning nozzle 14 is cleaned using nozzle cleaning water while housed in the main body 11. For example, a cleaning section 14a is provided corresponding to the housed position of the cleaning nozzle 14 in the main body 11, and discharges nozzle cleaning water to the cleaning nozzle 14. This cleans the discharge port of the cleaning nozzle 14. Note that the cleaning nozzle 14 may be cleaned by itself by discharging nozzle cleaning water.

[0044] In this way, cleaning of the cleaning nozzle 14 is performed inside the main body 11, but there is a possibility that the nozzle cleaning water will splash around during cleaning. There is also a possibility that the nozzle cleaning water will move along, for example, a member. On the other hand, as described above, the irradiation unit 17 and the detection unit 18 emit and receive laser light to detect excrement, and if the nozzle cleaning water adheres to the irradiation unit 17 or the detection unit 18, the detection accuracy may deteriorate. In particular, if the nozzle cleaning water adheres to the emission surface 17a or the light receiving surface 18a, it may affect the detection accuracy.

[0045] For this reason, the toilet seat device 5 is provided with a guard part 20 that guards the irradiation part 17 and the detection part 18 from the nozzle cleaning water discharged for cleaning the cleaning nozzle 14. The guard part 20 may guard at least either the irradiation part 17 or the detection part 18. The guard part 20 performs a guard function for preventing the nozzle cleaning water discharged for cleaning the cleaning nozzle 14 from reaching the irradiation part 17 or the detection part 18. In other words, the guard part 20 prevents the nozzle cleaning water from advancing to the positions where the irradiation part 17 and the detection part 18 are provided. In particular, the guard part 20 protects the emission surface 17a and the light receiving surface 18a from the nozzle cleaning water.

[0046] Specifically, in this embodiment, the guard section 20 is a shielding wall 21. FIG. 5 is a cross-sectional view showing an example of the configuration of the main body section 11 when viewed from the front. The main body section 11 houses various devices such as the cleaning nozzle 14, the irradiation section 17, and the detection section 18. The shielding wall 21 is provided inside the main body section 11 and divides the housed cleaning nozzle 14 from the irradiation section 17 and the detection section 18. Specifically, the shielding wall 21 divides the inside of the main body section 11 into an area A1 in which the cleaning nozzle 14 is provided and an area A2 in which other devices are provided. The cleaning nozzle 14 is provided in the area A1, and a drive source for the cleaning nozzle 14 may also be provided. At least the irradiation section 17 and the detection section 18 are not provided in the area A1. At least the irradiation section 17 and the detection section 18 are provided in the area A2, and other devices that are desired to suppress the influence of the nozzle cleaning water are provided.

[0047] In this way, the shielding wall 21 divides the inside of the main body 11. The shielding wall 21 preferably extends upward from the bottom plate 11a, which is the surface of the main body 11 facing the toilet bowl 4. The end of the extended shielding wall 21 is preferably connected to the top plate 11b, which is the upper surface of the main body 11, via a sealing member 24. By using the sealing member 24, the area A1 where the cleaning nozzle 14 is provided is sealed from the other area A2 inside the main body 11. This prevents the nozzle cleaning water from moving to the other area A2 even if the cleaning nozzle 14 is cleaned inside the area A1.

[0048] In this embodiment, the seal member 24 is used, but the seal member 24 may not be used. Also, the seal member 24 may be used between the bottom plate 11a and the shielding wall 21.

[0049] <Action and effect> As described above, the toilet seat device 5 of this embodiment comprises a toilet seat 13 placed on the rim 10 of the toilet bowl 4, a main body part 11 connected to the toilet seat 13, a cleaning nozzle 14 that can move toward and away from the toilet seat 13 relative to the main body part 11 and ejects cleaning water toward a user sitting on the toilet seat 13, an irradiation part 17 provided on the main body part 11 and irradiates laser light toward the toilet bowl 4, a detection part 18 provided on the main body part 11 and detects reflected light of the laser light irradiated from the irradiation part 17, and a guard part 20 that protects at least one of the irradiation part 17 and the detection part 18 from nozzle cleaning water ejected to clean the cleaning nozzle 14 while housed in the main body part 11.

[0050] According to this configuration, the guard part 20 protects the irradiation part 17 and the detection part 18 from the nozzle cleaning water used to clean the cleaning nozzle 14 inside the main body part 11, thereby preventing the nozzle cleaning water from adhering to the irradiation part 17 and the detection part 18. This prevents deterioration of the detection function of the irradiation part 17 and the detection part 18.

[0051] The toilet seat device 5 further includes a cleaning unit 14a that discharges nozzle cleaning water to the cleaning nozzle 14 while the cleaning nozzle 14 is housed in the main body 11.

[0052] According to this configuration, even when nozzle cleaning water is discharged from the cleaning unit 14a, the irradiation unit 17 and the detection unit 18 can be guarded by the guard unit 20.

[0053] In the toilet seat device 5, the irradiation unit 17 and the detection unit 18 are provided in the main body 11 on either side of the cleaning nozzle 14.

[0054] According to this configuration, even when the irradiation unit 17 and the detection unit 18 are provided on either side of the cleaning nozzle 14, the guard unit 20 can protect the irradiation unit 17 and the detection unit 18 from the nozzle cleaning water.

[0055] In addition, in the toilet seat device 5, the irradiation unit 17 and the detection unit 18 are housed in the main body unit 11, and the guard unit 20 is a shielding wall 21 that is provided inside the main body unit 11 and separates the cleaning nozzle 14 housed in the main body unit 11 from the irradiation unit 17 and the detection unit 18.

[0056] According to this configuration, by dividing the area with the shielding wall 21, the irradiation unit 17 and the detection unit 18 can be protected from the nozzle cleaning water.

[0057] Moreover, in the toilet seat device 5, the guard portion 20 is configured with a shielding wall 21, and seals the area inside the main body portion 11 where the cleaning nozzle 14 is provided from other areas inside the main body portion 11.

[0058] According to this configuration, the area in which the cleaning nozzle 14 is provided is sealed from other areas inside the main body 11, thereby effectively preventing the nozzle cleaning water from reaching the irradiation section 17 or the detection section 18.

[0059] --- Second embodiment --- Next, a second embodiment will be described.

[0060] In the second embodiment, a guard portion 20 different from that in the first embodiment will be described. Note that a description of the same points as in the first embodiment will be omitted. Also, the second embodiment can be combined with the first embodiment.

[0061] In the second embodiment, the guard part 20 is a protrusion 31. Fig. 6 is a plan view showing a schematic configuration of the toilet device 2. Fig. 7 shows a cross-sectional view of the main body part 11 around the cleaning nozzle 14 when viewed from the left. The protrusion 31 is provided at a position below the housed cleaning nozzle 14 on the bottom plate 11a, which is the surface of the main body part 11 on the toilet bowl 4 side. The protrusion 31 extends downward below the upper surface of the rim 10.

[0062] The irradiation unit 17 and the detection unit 18 are provided between the rim 10 and the convex portion 31. In particular, the emission surface 17a and the light receiving surface 18a are provided at a position higher than the lowest part of the convex portion 31. For example, the emission surface 17a and the light receiving surface 18a are provided at a position equal to the upper surface of the rim 10.

[0063] In addition, a hole 32 is provided at the bottom of the protrusion 31. The inside of the protrusion 31 is a recess, and when the cleaning nozzle 14 is cleaned, the nozzle cleaning water accumulates inside the protrusion 31. The hole 32 discharges the accumulated nozzle cleaning water into the toilet bowl 4. The hole 32 may be a gap between the shutter 19 and the bottom plate 11a. In this way, the nozzle cleaning water is discharged to the outside of the main body 11 through the hole 32, but the nozzle cleaning water that has come out may not fall into the toilet bowl 4 and may adhere to the outer surface of the protrusion 31. The height difference of the protrusion 31 prevents the nozzle cleaning water that has adhered thereto from reaching the emitting surface 17a or the light receiving surface 18a. For this reason, the protrusion 31 functions as a guard portion 20.

[0064] 6, the guard section 20 may be provided with a protrusion 33 on the outer surface of the bottom plate 11a between the convex section 31 and the irradiation section 17 and the detection section 18. The protrusion 33 is a protrusion extending downward on the outer surface of the bottom plate 11a. By providing the protrusion 33, the nozzle cleaning water adhering to the outer surface of the convex section 31 is prevented from reaching the emission surface 17a or the light receiving surface 18a.

[0065] <Action and effect> As described above, in the toilet seat device 5 of this embodiment, the guard portion 20 is a convex portion 31 formed on the surface of the main body portion 11 facing the toilet 4 below the housed cleaning nozzle 14, extending downward below the upper surface of the rim 10, and a hole 32 is provided in the convex portion 31, and the irradiation portion 17 and detection portion 18 are arranged between the rim 10 and the convex portion 31.

[0066] According to this configuration, even if the nozzle cleaning water is discharged outside the convex portion 31 through the hole 32 in the convex portion 31, the irradiation portion 17 and the detection portion 18 are provided between the rim 10 and the convex portion 31, thereby preventing the nozzle cleaning water from reaching the irradiation portion 17 or the detection portion 18.

[0067] In the toilet seat device 5, the guard portion 20 is a protrusion 33 formed on the surface of the main body 11 facing the toilet bowl 4, between the convex portion 31 and the irradiation portion 17 and the detection portion .

[0068] According to this configuration, even if the nozzle cleaning water runs down the outer surface of the convex portion 31, the protrusion portion 33 can prevent the nozzle cleaning water from reaching the irradiation portion 17 or the detection portion 18.

[0069] ---Third embodiment--- Next, a third embodiment will be described.

[0070] In the third embodiment, a guard portion 20 different from those in the first and second embodiments will be described. Note that a description of the same points as those in the first and second embodiments will be omitted. Also, the third embodiment can be combined with the first and second embodiments.

[0071] In the third embodiment, the guard part 20 is the bottom plate 11a of the main body part 11. FIG. 8 is a cross-sectional view showing an example of the configuration of the main body part 11 when viewed from the front. As shown in FIG. 8, the irradiation part 17 and the detection part 18 are provided on the lower part of the bottom plate 11a, which is the surface of the main body part 11 on the toilet bowl 4 side, that is, on the outside of the main body part 11. The bottom plate 11a is provided with a recess 11c recessed inward, and it is preferable that the irradiation part 17 and the detection part 18 are provided in this recess 11c. In this way, the irradiation part 17 and the detection part 18 are arranged on the outside of the main body part 11, and the cleaning nozzle 14 is arranged on the inside of the main body part 11 when stored, so that the bottom plate 11a can be used as the guard part 20 to guard the nozzle cleaning water.

[0072] In addition, since the convex portion 31 below the cleaning nozzle 14 is provided with the hole 32, the nozzle cleaning water that comes out may adhere to the outer surface of the convex portion 31 instead of dropping into the toilet bowl 4. For this reason, a protrusion 34 may be provided as the guard portion 20. The protrusion 34 is a protrusion that extends downward on the outer surface of the bottom plate 11a. The protrusion 34 is formed on the outer surface of the bottom plate 11a between the hole 32 and the irradiation unit 17 and the detection unit 18.

[0073] <Action and effect> As described above, in the toilet seat device 5 according to this embodiment, the irradiation unit 17 and the detection unit 18 are provided on the outer side of the surface of the main body 11 facing the toilet bowl 4, and the guard unit 20 is formed by that surface of the main body 11.

[0074] According to this configuration, the cleaning nozzle 14 is housed inside the main body 11, and the irradiation unit 17 and the detection unit 18 are arranged outside the main body 11, thereby preventing the nozzle cleaning water from reaching the irradiation unit 17 or the detection unit 18.

[0075] In addition, in the toilet seat device 5, a hole 32 is provided on the surface of the main body 11 facing the toilet 4 below the housed cleaning nozzle 14, and the guard part 20 is a protrusion 34 formed on the surface of the main body 11 facing the toilet 4 between the hole 32 and the irradiation part 17 and the detection part 18.

[0076] According to this configuration, even if the nozzle cleaning water runs down the outer surface of the main body 11, the protrusions 34 can prevent the nozzle cleaning water from reaching the irradiation unit 17 or the detection unit 18.

[0077] <Modification> The present disclosure is not limited to the above-mentioned embodiment. In other words, the above-mentioned specific example, to which a person skilled in the art appropriately adds design modifications, is also included in the scope of the present disclosure as long as it has the features of the present disclosure. In addition, each element of the above-mentioned embodiment and the following modified examples can be combined to the extent technically possible, and the combination of these is also included in the scope of the present disclosure as long as it has the features of the present disclosure.

[0078] For example, in the first to third embodiments, an example was given in which the irradiation unit 17 and the detection unit 18 are provided on the left and right sides of the cleaning nozzle 14, respectively, but the arrangement of the irradiation unit 17 and the detection unit 18 is not limited to the above.

[0079] In addition, in the first to third embodiments, the shielding wall 21 or the like is used as the guard portion 20. However, the present invention is not limited to the above, as long as the structure has the function of the guard portion 20.

[0080] Furthermore, a shutter (shielding mechanism) that closes the front of the emitting surface 17a and the light receiving surface 18a when cleaning the cleaning nozzle 14 may be provided as the guard portion 20. By closing the front with the shutter, the emitting surface 17a and the light receiving surface 18a can be protected from the nozzle cleaning water.

[0081] Furthermore, the guard section 20 may be provided with a moving mechanism that moves the emitting surface 17a and the light receiving surface 18a from the inside to the outside of the main body section 11 when cleaning the cleaning nozzle 14. By moving them to the outside with the moving mechanism, the emitting surface 17a and the light receiving surface 18a can be protected from the nozzle cleaning water.

[0082] Furthermore, when cleaning the cleaning nozzle 14, the cleaning nozzle 14 may be moved to the outside of the main body 11 together with the cleaning part 14a that ejects the nozzle cleaning water, and cleaning may be performed with the nozzle cleaning water. [Explanation of symbols]

[0083] 2: Toilet equipment 4: Toilet 5: Toilet seat device 10: Rim 11: Main body 13: Toilet seat 14: Cleaning nozzle (nozzle) 15: Excretion detection unit (irradiation unit 17 and detection unit 18) 17: Irradiation unit 18: Detection unit 20: Guard section

Claims

1. a toilet seat that rests on the rim of the toilet bowl; A main body connected to the toilet seat; a nozzle that can move toward and away from the toilet seat with respect to the main body and that ejects cleaning water toward a user seated on the toilet seat; an irradiation unit provided in the main body and configured to irradiate a laser beam toward the toilet bowl; a detection unit provided in the main body unit and configured to detect reflected light of the laser light irradiated from the irradiation unit; a guard section that protects at least one of the irradiation section and the detection section from nozzle cleaning water discharged to clean the nozzle while being accommodated in the main body section; A toilet seat device comprising:

2. a cleaning unit that discharges nozzle cleaning water to the nozzle in a state where the nozzle is housed in the main body; The toilet seat apparatus of claim 1 further comprising:

3. The irradiation unit and the detection unit are provided on either side of the nozzle in the main body.

2. A toilet seat apparatus as claimed in claim 1.

4. The irradiation unit and the detection unit are housed in the main body, The guard portion is a shielding wall provided inside the main body portion and partitioning the nozzle housed in the main body portion from the irradiation portion and the detection portion. A toilet seat device according to any one of claims 1 to 3.

5. the guard portion is configured by the shielding wall and seals an area inside the main body portion in which the nozzle is provided from other areas inside the main body portion.

5. A toilet seat arrangement as claimed in claim 4.

6. the guard portion is a protrusion formed on the toilet bowl side surface of the main body portion below the housed nozzle and extending downward below an upper surface of the rim, The protrusion is provided with a hole, The irradiation unit and the detection unit are disposed between the rim and the protrusion. A toilet seat device according to any one of claims 1 to 3.

7. The guard portion is a protrusion formed on the toilet bowl side surface of the main body between the convex portion and the irradiation portion and the detection portion.

7. A toilet seat arrangement as claimed in claim 6.

8. The illumination unit and the detection unit are provided on the outer side of the toilet bowl side surface of the main body, The guard portion is constituted by the surface of the main body portion. A toilet seat device according to any one of claims 1 to 3.

9. A hole is provided on the toilet bowl side surface of the main body below the housed nozzle, The guard portion is a protrusion formed on the toilet bowl side surface of the main body between the hole and the irradiation portion and the detection portion.

9. A toilet seat arrangement as claimed in claim 8.

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