Toilet seat device

Abstract

To provide a toilet seat device that can efficiently exhaust air including an odor in a toilet bowl.SOLUTION: A toilet seat device 10 according to the present invention comprises a toilet seat lid 13 capable of opening / closing a central opening part 12A of a toilet seat 12 provided on a toilet bowl 1, a lid exhaust port 52 provided in the toilet seat lid 13 so as to correspond to the central opening part 12A, and an exhaust device 51 for exhausting air including an odor in the toilet bowl 1, to the outside of the toilet bowl 1 from the lid exhaust port 52. A suction port 61 of the exhaust device 51 is connected to the lid exhaust port 52. The exhaust device 51 is fitted to an upper surface 13A of the toilet seat lid 13 by attaching / detaching means. The exhaust device 51 comprises at least one of odor eliminating means, deodorizing means, and aromatic means.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a toilet seat assembly having a toilet seat cover. [Background technology]

[0002] Conventionally, in order to treat odors inside a toilet bowl, there is a toilet seat device (for example, Patent Document 1) in which an outer case is attached to the rear of the toilet bowl, a deodorizing duct is provided inside this outer case to guide odors generated inside the toilet bowl from an air intake to an exhaust outlet, and a deodorizing cartridge that adsorbs and decomposes the odor is placed inside the deodorizing duct, and the air intake is provided on the front underside of the outer case.

[0003] In addition, to prevent the toilet seat on the toilet from getting dirty, there are paper stain prevention sheets that are placed on the toilet seat to cover the inside of the toilet (for example, Patent Document 2), and toilet sheets that are sheets with a hole in the center that are placed on the toilet (for example, Patent Document 3). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-337480 [Patent Document 2] Japanese Patent Application Laid-Open No. 2007-274 [Patent Document 3] Japanese Patent Application Laid-Open No. 2014-210163 Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned Patent Document 1, the air intake port is located away from the center of the toilet bowl, which results in poor air intake efficiency.In addition, since a cleaning nozzle device and other components are placed inside the outer case, it is difficult to incorporate a large-capacity fan.

[0006] Furthermore, the above-mentioned Patent Documents 2 and 3 both use disposable sheets that are placed on the top of the toilet seat, so they cannot prevent the underside of the toilet seat from getting dirty. Furthermore, with toilet seats that are pivotally attached to the toilet bowl so that they can be opened, dirt can be removed from the underside of the seat, but removing stubbornly stuck dirt is time-consuming. Furthermore, as in Patent Document 1, the underside of the outer case attached to the rear of the toilet bowl faces the inside of the bowl, so it is easily soiled, and since the dirt is not visible, it can cause an unpleasant odor if left unattended.

[0007] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a toilet seat device that can efficiently exhaust odor-laden air from within the toilet bowl. [Means for solving the problem]

[0008] The toilet seat device of the present invention includes a toilet seat cover that can open and close a central opening of the toilet seat provided on the toilet bowl, a cover exhaust port provided on the toilet seat cover corresponding to the central opening, and a toilet seat cover. Easy to put on and take off an exhaust device that exhausts air from within the toilet bowl to the outside of the toilet bowl through the lid exhaust port. The exhaust device includes an exhaust casing provided on the upper surface of the toilet seat lid, the exhaust casing including an intake port connected to the lid exhaust port, an exhaust port, and exhaust means for exhausting air drawn in through the intake port from the exhaust port. It is characterized by the following. [Effects of the Invention]

[0009] According to the toilet seat device of the present invention, odor-containing air inside the toilet bowl can be efficiently exhausted. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view schematically showing an example of the configuration of a toilet seat device in a first embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view of the toilet seat device as viewed from the bottom side. [Figure 3] FIG. 10 is a perspective view illustrating the process of attaching the main body to the toilet seat. [Figure 4] FIG. 10 is a cross-sectional view of the exhaust device attached to the toilet seat lid. [Figure 5] FIG. 10 is a side view of the exhaust device attached to the toilet seat lid. [Figure 6]FIG. 10 is a perspective view of the exhaust device and the toilet seat cover. [Figure 7] 1A is a perspective view of the toilet seat device in the open state, and FIG. 1B is a bottom view of the toilet seat cover. [Figure 8] FIG. [Figure 9] FIG. 2 is a perspective view of the toilet seat device with the main body cover in place, as viewed from the bottom side. [Figure 10] FIG. 2 is a perspective view of the toilet seat device and the main body cover in the open state of the toilet seat. [Figure 11] 1A and 1B are a plan view and a front view of the remote control according to the first embodiment. [Figure 12] FIG. 2 is a block diagram showing an example of the electrical configuration of the main body of the first embodiment. [Figure 13] FIG. 2 is a block diagram showing an example of the electrical configuration of the remote control according to the first embodiment. [Figure 14] FIG. 5 is a block diagram showing an example of the configuration of an exhaust device in a second embodiment of the present invention. [Figure 15] FIG. 10 is a perspective view schematically showing an example of the configuration of a toilet seat device in a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] A first preferred embodiment of a toilet seat device of the present invention will now be described with reference to the accompanying drawings. [Example]

[0012] 1 to 12 show a toilet seat device according to a first embodiment of the present invention. FIG. 1 shows an example of the configuration of a toilet seat device 10 installed around a toilet bowl 1 in a toilet room S. FIG. 2 is a perspective view of the main body 11, toilet seat 12, and toilet seat cover 13 of the toilet seat device 10, viewed from below (the bottom side). The toilet bowl 1 has a concave bowl portion 2 with an open upper surface that receives excrement, and this bowl portion 2 forms the inner surface of the toilet bowl 1. The bowl portion 2 is the toilet bowl of the toilet bowl 1. The toilet seat 12 is approximately O-shaped in plan view, and the toilet seat cover 13 covers the toilet seat 12 and is shaped so that a central opening 12A of the toilet seat 12 can be opened and closed. The main body 11 of the toilet seat device 10 is detachably fixed to the upper surface of the toilet rear portion 3 located at the rear of the toilet 1. A roughly rectangular remote control 14 is detachably disposed separately from the main body 11, for example on a side wall in the toilet room S, as a remote control for the toilet seat device 10.

[0013] The main body 11 is provided with a hollow casing 15 which is the main body part, and this casing 15 is made up of an outer shell member made of synthetic resin, consisting of a main body underside 16 which is attached and fixed to the upper surface of the rear part 3 of the toilet 1, and a casing upper part 17 which covers the upper surface of the main body underside 16 and has an open bottom. A toilet seat 12 and toilet seat lid 13, both made of synthetic resin, are rotatably attached to the casing 15, and the toilet seat lid 13 has a central opening 12A which can be opened and closed freely, so that with the toilet seat lid 13 open as shown in Figure 1, a user (not shown) can sit with their buttocks on the toilet seat 12 by tilting the toilet seat 12 towards the toilet 1.

[0014] On the underside of the toilet seat 12, multiple convex seat legs 18 are arranged at intervals, which come into direct contact with the top surface of the toilet bowl 1 when the toilet seat 12 is tilted toward the toilet bowl 1, which is the in-use position, and in this example, are located in four places: on the left and right front sides and on the left and right rear sides. One of the seat legs 18 has a built-in mechanical seat switch 19 that serves as seat occupancy detection means, and it can be detected whether or not a user is seated on the toilet seat 12 depending on whether or not the seat leg 18 comes into contact with the toilet bowl 1 and the seat switch 19 is pressed. The seat switch 19 is located on one of the seat legs 18 on the left or right front side in the center.

[0015] Reference numeral 21 denotes a main body operation unit provided on the side of the casing 15. The main body operation unit 21 includes various operation buttons, including flush buttons such as a diaper button and a bidet button, and a stop button, and the user's operations are input via these operation buttons. Reference numeral 22 denotes a main body display unit provided on the top of the casing 15. The main body display unit 22 includes indicator lamps such as a power lamp, a deodorizing lamp, a power saving lamp, and a toilet seat lamp, and the display forms of these indicator lamps inform the user of the operating status of each part of the toilet seat device 10. A remote control light receiving unit 23 that receives infrared signals from the remote control 14 is arranged next to the main body display unit 22 on the top of the casing 15.

[0016] A so-called movable cleaning nozzle 25 is provided at the lower front of the casing 15. The cleaning nozzle 25, which corresponds to a nozzle device, is cylindrical and extends linearly along the front-rear direction of the main body 11, and is arranged to be reciprocally movable along the front-rear direction of the main body 11. One or more nozzles (not shown) are provided around the peripheral surface of the tip of the cleaning nozzle 25 so that cleaning liquid is efficiently sprayed toward the private parts of a user seated on the toilet seat 12 when the cleaning nozzle 25 is advanced to a position protruding from below the toilet seat 12. In addition, a nozzle guard 26 that protrudes downward from the main body 11 is integrally formed on the main body underside 16, which forms the bottom of the casing 15, to protect the cleaning nozzle 25 housed within the casing 15 when the cleaning nozzle 25 is retracted to a position below the toilet seat 12. The cleaning nozzle 25 is preferably made of stainless steel to maintain cleanliness, but other materials may also be used. Although neither is shown in the present embodiment, the washing nozzle 25 is made up of a rear washing nozzle that sprays cleaning liquid onto a first private part of the user, and a bidet washing nozzle that sprays cleaning liquid onto a second private part different from the first private part of the user. The rear washing nozzle and the bidet washing nozzle are each movable along the same axis or separate axes. In this way, the toilet seat device 10 is a washing toilet seat device equipped with the washing nozzle 25.

[0017] Reference numeral 28 denotes a spraying device provided inside the casing 15 adjacent to the flushing nozzle 25. The spraying device 28 has one or more spray outlets 29 arranged at the front bottom of the casing 15 so that cleaning liquid is sprayed toward the bowl portion 2 of the toilet 1. In order to supply tap water to the flushing nozzle 25 and the spraying device 28, a main body water intake 32 communicating with a stop valve (not shown) installed in advance in the toilet room S is provided at the rear side of the casing 15. The flushing nozzle 25 and the spraying device 28 spray tap water supplied from the main body water intake 32 as is, or sterilized water generated from tap water as the cleaning liquid. A sterilization device (not shown) may also be incorporated inside the casing 15 to generate sterilized water from tap water.

[0018] In addition, a deodorizing unit 34 is built into the casing 15 to reduce and eliminate odors within the toilet bowl 1. The deodorizing unit 34 is configured by disposing a deodorizing filter 37 and a deodorizing fan 38 (see FIG. 12) in a deodorizing passage (not shown) between a main body suction port 35 located on the front underside of the casing 15 facing the top surface of the toilet bowl 1, and an exhaust port 36 located at the rear of the casing upper part 17. The deodorizing filter 37 is detachably mounted inside the casing 15 facing the exhaust port 36, and can be replaced with a new deodorizing filter 37 as needed. The deodorizing fan 38 is disposed between the deodorizing filter 37 and the main body suction port 35, and while the deodorizing fan 38 is operating, it sucks in odors within the toilet bowl 1 through the main body suction port 35 and forcibly sends them to the deodorizing filter 37, where the odor is removed, and odor-reduced air is discharged through the exhaust port 36.

[0019] As shown in FIG. 2, a mounting recess 41 is recessed upward in the main body underside 16. This mounting recess 41 has a front edge 41A that protrudes rearward so that a center portion 41T is positioned rearward compared to the left and right sides, and left and right edges 41L, 41R that extend rearward from the left and right ends of this front edge 41A. A rear opening 42 is formed between the rear ends of these left and right edges 41L, 41R. As shown in FIG. 3, a fixing plate 43 for fixing the main body 11 is fixed to the upper surface of the toilet rear section 3. The main body 11 is fixed to the toilet rear section 3 by aligning the rear opening 42 of the mounting recess 41 with this fixing plate 43 and sliding the main body 11 rearward to fit the fixing plate 43 into the mounting recess 41. Conversely, the main body 11 can be removed from the toilet rear section 3 by sliding the main body 11 forward and removing the fixing plate 43 from the mounting recess 41. In this way, the toilet rear section 3 is the mounting portion for the toilet 1 to which the main body 11 is attached. In addition, the exhaust device 51 is not shown in FIG.

[0020] As shown in Figure 8, the rear of the toilet seat 12 is provided with a left-right rear surface portion 45 that rises upward from the underside of the toilet seat 12, and shaft mounting portions 46, 46 are provided on the left and right sides of this rear surface portion 45 to protrude rearward, and as shown in Figure 7(A), shaft portions 47, 47 that protrude inward in the left-right direction of the shaft mounting portions 46, 46 are rotatably connected to the main body 11, and the toilet seat 12 opens and closes around the shaft portions 47, 47. In addition, when the rear surface 45 of the toilet seat 12 is closed, it faces the upper front surface portion 17A, which is the front-facing surface of the casing 15, via a gap.

[0021] The foul odor in the toilet 1 is caused by excrement that temporarily accumulates in the bowl 2 of the toilet 1, but the deodorizing suction port of conventional deodorizing means is located away from the area where excrement accumulates in the bowl 2 of the toilet 1, which poses the issue of insufficient deodorizing suction. Furthermore, if the deodorizing suction port is placed opposite the area where excrement accumulates, excrement may adhere to the port during use, which may prevent it from fully absorbing the foul odor. Increasing the rotation speed of the suction fan to increase suction power also creates the problem of increased noise. While it is possible to make the deodorizing suction port extendable like a cleaning nozzle, the area of ​​the deodorizing suction port is limited, which poses the issue of insufficient deodorizing performance.

[0022] Therefore, as shown in Figures 4 to 6, the toilet seat apparatus 10 is equipped with an exhaust device 51 located on the upper surface 13A side of the toilet seat lid 13, and this exhaust device 51 exhausts air inside the bowl portion 2 of the toilet 1 to the outside through a lid exhaust port 52 drilled in the center of the toilet seat lid 13. The lid exhaust port 52 is located in the center of the bowl portion 2 facing the bowl portion 2, at a position corresponding to the central opening 12A of the toilet seat 12 when closed. The exhaust device 51 is equipped with a hollow exhaust casing 53 made of synthetic resin that is long in the front-to-rear direction, and this exhaust casing 53 has a roughly rectangular cross section and is shaped to correspond to the curved shape of the upper surface 13A of the toilet seat lid 13 in the front-to-rear direction.

[0023] Exhaust casing 53 is composed of upper and lower exhaust casing parts 54 and 55, which are divided into upper and lower parts, and upper exhaust casing 54 is detachably attached to lower exhaust casing 55 by attachment / detachment means 56. Attachment / detachment means 56 is configured by providing downward-facing locking claws 57 on the front, rear, left, and right sides of upper exhaust casing 54, and locking grooves 58 on the side surfaces of lower exhaust casing 55, which serve as locking receiving parts with which locking claws 57 detachably engage. Therefore, by engaging locking claws 57 with locking grooves 58, upper exhaust casing 54 and lower exhaust casing 55 are integrated at their joint 53A, and by opening left and right locking claws 57, 57 to remove locking claws 57 from locking grooves 58, upper exhaust casing 54 and lower exhaust casing 55 can be disassembled.

[0024] A cylindrical intake port 61 that fits into the lid exhaust port 52 is provided on the lower rear surface of the exhaust casing 53, and an exhaust port 62 is provided on the front surface of the exhaust casing 53, with the front intake port 61 and the rear exhaust port 62 communicating with each other through an internal passage 63 within the exhaust casing 53. The exhaust casing 53 is also provided with exhaust means 64, which has a fan 65 serving as air supply means disposed in the internal passage 63, and a drive means 66 that includes a motor or the like for driving the fan 65. A centrifugal fan is used as the fan 65, and air is drawn into the center of the fan 65 through the intake port 61, and is then blown out from the outer periphery of the fan 65 and pressure-fed to the exhaust port 62.

[0025] The exhaust port 62 of the exhaust casing 53 is provided with at least one of the following odor treatment means: a deodorizing means, a deodorizing means, and a means for making the air smell pleasant. Two or three of these odor treatment means can be provided. In this example, a deodorizing filter 67 is provided as the deodorizing means. The deodorizing filter 67 is detachably mounted inside the casing 15 facing the exhaust port 62. The deodorizing filter 67 can be removed from the exhaust port 62 to the front and installed inside the exhaust port 62 from the front. The deodorizing filter 67 can be replaced with a new deodorizing filter 67 or another odor treatment means as needed. The upper exhaust casing 54 can also be removed from the lower exhaust casing 55, and the odor treatment means inside the exhaust casing 53 can be replaced. The odor treatment means for treating odors can be powered by a power source, such as a deodorizing means using plasma or ozone, or a photocatalytic deodorizing means.

[0026] The attachment means 68 is provided for detachably attaching the exhaust device 51 to the upper surface 13A of the toilet seat lid 13. The attachment means 68 has a plurality of engaging claws 69 protruding from the upper surface 13A of the toilet seat lid 13 as locking portions, upward stepped portions 70 serving as locking receiving portions with which the engaging claws 69 lock, formed on the side surfaces of the exhaust casing 53, and a plurality of engaging claws 69A protruding from the upper surface 13A of the toilet seat lid 13 as locking portions, and upward stepped portions 70A serving as locking receiving portions with which the engaging claws 69A lock, formed on the left and right sides of the attachment portion 59 protruding rearward from the rear surface 55A of the exhaust casing lower portion 55. Then, by engaging the engaging claws 69, 69A with the upward stepped portions 70, 70, the exhaust casing 53 is attached to the toilet seat lid 13 with the suction port 61 aligned with the lid exhaust port 52. In this case, the casing body of the exhaust casing 53, excluding the cylindrical suction port 61, is located on the upper surface side of the toilet seat lid 13. Furthermore, by operating to open the left and right engaging claws 69, 69 and the left and right engaging claws 69A, 69A, the exhaust casing 53 can be removed from the toilet seat lid 13. Note that it is also possible to remove only the upper exhaust casing 54 while the lower exhaust casing 55 of the exhaust casing 53 is attached to the toilet seat lid 13 by the attachment means 68.

[0027] Next, we will explain how the exhaust device 51 treats odors within the toilet 1. When the fan 65 is driven with the toilet seat 12 and toilet lid 13 closed, odor-containing air is sucked into the exhaust casing 53 through the suction port 61 located above the center of the bowl 2 of the toilet 1, passes through the deodorizing filter 67, and is exhausted to the outside in a deodorized state. Because the exhaust device 51 is attached to the top surface 13A of the toilet lid 13 and the user opens the toilet lid 13 to use the toilet 1, no excrement will adhere to the exhaust device 51 during use. While it is possible to make the suction port extendable on the main body 11 like a flushing nozzle, in this case the opening area of ​​the suction port is limited and sufficient suction performance cannot be ensured. However, by providing the exhaust device 51 on the toilet lid 13, there are no space limitations compared to when the exhaust device 51 is provided on the main body 11, allowing the suction port 61 to be made larger and a larger fan to be used.

[0028] Removing stubborn dirt from the underside of the toilet seat 12 is time-consuming, and the underside of the main body 11 of the toilet seat device 10, which is fixedly installed at the back of the toilet bowl 1, directly faces the inside of the toilet bowl 1 and is easily soiled. Because it is fixed to the toilet bowl 1, the dirt is not visible and cannot be easily removed. Because the dirt is not visible, it can cause unpleasant odors if left unattended. Furthermore, the toilet seat 12 is fitted with a cloth toilet seat cover, and a soiled cloth toilet seat cover can be removed from the toilet seat 12 and discarded or washed and reused. However, the underside of the toilet seat 12 may be equipped with components that function by directly contacting the toilet bowl 1, such as a seat switch or toilet seat cushion. Problems can be anticipated if these functional components are also covered with a cloth toilet seat cover.

[0029] Therefore, as shown in Figures 7 and 8, a toilet seat cover 71 is removably attached to the underside of the toilet seat 12. This toilet seat cover 71 is made of an antibacterial sheet material made of synthetic resin, for example, polypropylene (PP), with a thickness of approximately 0.2 to 0.5 mm, has shape retention, is formed to follow the shape of the underside of the toilet seat 12, and fits closely to the underside of the toilet seat 12. Also, as shown in Figure 8, a rear covering part 71A that covers the rear part 45 is integrally provided at the rear of the toilet seat cover 71. In this case, the toilet seat cover 71 with the rear covering part 71A is formed into a shape that can be removably attached to the underside of the toilet seat 12 by vacuum molding.

[0030] The toilet seat 12 is provided with the toilet seat legs 18 as components that function when in contact with the toilet bowl 1. The toilet seat cover 71 is provided with openings 72 that correspond to the toilet seat legs 18, and when the toilet seat legs 18 are inserted into the holes 72 and the toilet seat cover 71 is attached to the toilet seat 12, the underside of the toilet seat legs 18 can come into contact with the toilet seat 12, and the seat switch 19 will operate correctly. Furthermore, if the underside of the toilet seat legs 18 is made of rubber or the like and has a higher coefficient of friction than the synthetic resin of the toilet seat 12, the toilet seat legs 18 can come into direct contact with the toilet bowl 1, ensuring an anti-slip effect.

[0031] The toilet seat cover 71 is provided with attachment means 74 for removably attaching the toilet seat cover 71 to the underside of the toilet seat 12 when the toilet seat 12 is open. The attachment means 74 includes a magnetic sheet 75, which is a sheet-like attachment means using magnetic force, and a sheet-like attracted member 76 to which the magnetic sheet 75 is attached. The magnetic sheet 75, which is one of the magnetic sheet 75 and the attracted member 76, is provided on the left and right sides and at the rear center of the underside of the toilet seat 12, and the sheet-like attracted members 76 are provided on the upper surface of the toilet seat cover 71 in correspondence with the magnetic sheets 75, 75, 75 at the left, right, and rear center. The magnetic sheet 75 is also provided between the front and rear seat legs 18, 18. The attracted member 76 is made of a magnetic material that the magnetic sheet 75 is attracted to, and the attracted member 76 may also be a magnetic sheet. In this case, the magnetic sheet 75 is attached to the member to be attached 76, and further, by inserting the toilet seat legs 18 into the multiple holes 72, the toilet seat cover 71 can be attached in a positioned state to the underside of the toilet seat 12, and the multiple holes 72 make it easy to align the toilet seat cover 71 to the underside of the toilet seat 12.

[0032] 8 and 9, a main body cover 81 is removably provided in a gap 80 between the underside of the main body underside portion 16 of the main body 11 and the upper surface of the toilet rear portion 3. This main body cover 81 is made of a synthetic resin, for example, polypropylene, sheet material with antibacterial properties and a thickness of approximately 0.2 to 0.5 mm, is substantially flat and has shape retention, and is inserted into the gap 80 from the front side of the main body 11 and attached to the main body underside portion 16 of the main body 11.

[0033] The body cover 81 is provided on the underside of the body 11 at a position facing at least the bowl portion 2 of the toilet 1. That is, the body cover 81 is provided so as to cover at least a facing portion 82 facing the upper opening 2A of the bowl portion 2, and its front edge 81F has substantially the same shape as the planar shape of the curved front surface portion 11A. It has an insertion portion 83 that is inserted into the gap 80 between the body 11 and the body underside 16 when the front edge 81F is aligned with the curved front surface portion 11A. The facing portion 82 is the portion surrounded by the front edge 81F and the dashed line indicating the upper opening 2A in FIG. 9, and the insertion portion 83 that is inserted into the gap 80 is located outside the upper opening 2A. As described above, since the fixing plate 43 fits into the mounting recess 41, the body cover 81 is not provided in the mounting recess 41, and the body cover 81 has a shape that does not allow it to be provided at the portion of the body 11 that is fixed to the toilet 1.

[0034] The outlet 29 and the main body suction port 35 are components that function by communicating with the interior of the toilet bowl 1, and the main body cover 81 has notched openings 84, 84A cut out of the front edge 81F to correspond to the outlet 29 and the main body suction port 35, and these openings 84, 84A expose the outlet 29 and the main body suction port 35 and face the interior of the bowl portion 2. The nozzle guard 26 is provided at a position facing the interior of the toilet bowl 1 and protrudes from the underside of the main body underside portion 16. The opening 84 is large to correspond to this protruding portion, and this opening 84 connects the outlet 29 and the nozzle guard 26 to the interior of the toilet bowl 1. In other words, the nozzle guard 26 and the outlet 29 are housed in the opening 84, and the main body suction port 35 is housed in the opening 84. Also, if there is no nozzle guard 26, the cleaning nozzle 25 is a part that functions by communicating with the inside of the toilet bowl 1, and an opening can be provided in the main body cover 81 to prevent the extendable cleaning nozzle 25 from hitting the main body cover 81.

[0035] A plurality of positioning portions 86, 86 are integrally formed on the front edge portion 81F of the main body cover 81, and these plate-like positioning portions 86, 86 protrude upward and are arranged in positions other than the openings 84, 84A. The positioning portions 86, 86 abut against the curved front surface portion 11A, which is the abutting portion of the main body 11, to position the main body cover 81 in the front and rear relative to the main body undersurface portion 16, and can prevent the main body cover 81 from shifting rearward. Furthermore, when replacing the main body cover 81, the positioning portions 86, 86 can be hooked with the fingers to pull out the main body cover 81.

[0036] Next, we will explain how to use both covers 71, 81. As shown in Figure 7(A), when the toilet seat 12 is tilted forward and opened, the holes 72 are aligned with the toilet seat legs 18, and the toilet seat cover 71 is placed on the underside of the toilet seat lid 13, the magnetic sheet 75 is attracted to the attracting member 76, and the toilet seat cover 71 is fixed to the toilet seat lid 13. If the toilet seat cover 71 becomes soiled during use, the dirt can be easily removed by removing the toilet seat cover 71, and the toilet seat cover 71 can be repeatedly attached to the toilet seat 12 and used after the dirt is removed. In addition, the toilet seat 12 is provided with the toilet seat legs 18 as parts that function when in contact with the toilet bowl 1, and the toilet seat cover 71 has holes 72 that correspond to the toilet seat legs 18, so the function of the parts is not impaired.

[0037] As shown in FIG. 10 , with the toilet seat 12 and toilet seat lid 13 tilted backward and open, the main body cover 81 is placed over the top surface of the toilet seat 12, then moved backward to insert the insertion portion 83 into the gap 80, aligning the front edge 81F with the curved front surface 11A, and attaching the main body cover 81 to the underside of the main body 11. This ensures that at least the facing portion 82 of the main body underside 16 of the main body 11 is covered by the main body cover 81, and the outlet 29 and main body inlet 35 are exposed through the opening 84 and face the bowl 2. Conversely, the main body cover 81 can be removed by pulling it forward, and dirt can be cleaned from the removed main body cover 81. After cleaning, the main body cover 81 can be reused. The facing portion 82 of the main body underside 16 facing the bowl 2 is invisible during normal use. Covering this portion with the main body cover 81 prevents dirt from building up in this area, which could otherwise cause an unpleasant odor if left unused for a long period of time.

[0038] The casing 15 of the main body 11 and the toilet seat 12 are made of synthetic resin, and it is not easy to remove stuck-on excrement stains, but the covers 71, 81 are made of polypropylene sheet material that is easy to peel off even if stains adhere, and are also removable, so they can be easily cleaned by removing the covers 71, 81. Also, compared to paper sheets, the synthetic resin toilet seat cover 71 and the main body cover 81 have a shape that fits tightly against the underside of the toilet seat 12 and the main body 11, so by attaching the toilet seat cover 71 and the main body cover 81 to the toilet seat 12 and the main body 11 during transportation, impact resistance can be improved.

[0039] 11 shows the external configuration of the remote control 14. In the figure, the remote control 14 includes a remote control operation unit 91 having a plurality of buttons 91-1 to 91-16 arranged on the front and top surfaces thereof, and a remote control display unit 92 having a plurality of lamps 92-1 to 92-3 arranged on the front surface of the remote control 14. The remote control operation unit 91 is configured by arranging a stop button 91-1, a butt button 91-2, a bidet button 91-3, and a move button 91-4 side by side on the upper front surface of the remote control 14, a front button 91-5 and a rear button 91-6 for adjusting the nozzle position, a weak button 91-7 and a strong button 91-8 for adjusting the water pressure, a hot water temperature adjustment button 91-9, and a toilet seat temperature adjustment button 91-10 side by side on the lower front surface of the remote control 14, and a power saving 1 button 91-11, a power saving 2 button 91-12, a mist button 91-13, a deodorizing button 91-14 on the main body 11, a nozzle cleaning button 91-15, and an exhaust button 91-16 on the toilet seat lid 13 side by side on the top surface of the remote control 14. The remote control display unit 92 is configured by arranging a plurality of water pressure lamps 92-1 above the water pressure adjustment buttons 91-7 and 91-8, a plurality of hot water temperature lamps 92-2 above the hot water temperature adjustment button 91-9, and a plurality of toilet seat temperature lamps 92-3 above the toilet seat temperature adjustment button 91-10. Note that the arrangement of the remote control operation unit 91 and remote control display unit 92 shown in Figure 11 is merely an example, and can be changed, added to, or deleted as appropriate depending on the specifications of the toilet seat device 10.

[0040] Next, an example of the electrical configuration including the control system of the toilet seat device 10 will be described. Fig. 12 shows an example of the electrical configuration of the main body 11, in which control means 101 is mainly composed of, for example, a microcomputer as an arithmetic and control device, a memory as a recording medium, and an input / output interface for analog / digital conversion, and is mounted inside the casing 15 to control the overall operation of the main body 11 and the exhaust device 51. The input port of the control means 101 is electrically connected to the main body operation unit 21, the seat switch 19, and the remote control light receiving unit 23, while the output port of the control means 101 is electrically connected to the main body display unit 22, the deodorizing fan 38, the hot water heater 102, the toilet seat heater 103, the water supply pump 104, the switching valve 105, the first motor unit 106, and the exhaust means 64 of the exhaust device 51. The output port and input port of the control means 101 are electrically connected to the exhaust means 64 of the exhaust device 51 by an electric cable 60, which is fixed and wired to the upper surface 13A of the toilet seat lid 13. In Figure 12, everything except the seat switch 19 and the exhaust means 64 is provided in the main body 11.

[0041] The hot water heater 102 corresponds to the liquid heating means for heating the tap water to be supplied to the cleaning nozzle 25, and is configured, for example, by arranging a linear heater in a water supply passage leading to the cleaning nozzle 25 inside the casing 15. The toilet seat heater 103 corresponds to the toilet seat heating means for heating the toilet seat 12, and is configured, for example, by arranging a linear heater in a serpentine shape on a metal sheet member inside the toilet seat 12. The water supply pump 104 corresponds to the liquid supply means for supplying tap water to the cleaning nozzle 25 and the spraying device 28, and is configured, for example, by a pulsation pump driven by a motor built into the casing 15. The switching valve 105 corresponds to the switching means for supplying tap water sent out from the water supply pump 104 to either the cleaning nozzle 25 (rear washing nozzle or bidet cleaning nozzle) or the spraying device 28. The first motor unit 106 corresponds to the first drive mechanism for moving the cleaning nozzle 25 from the main body 11 to a desired position, and in this embodiment, one or more motors are used as drive sources to move the rear cleaning nozzle and the bidet cleaning nozzle to their respective desired positions.

[0042] A lid sensor 108 (see Figure 12) is electrically connected to the input port of the control means 101, and a second motor unit 110 is electrically connected to the output port of the control means 101. The lid sensor 108 is disposed on shafts 109, 109 of the toilet seat lid 13 as a lid opening detection means for detecting when the toilet seat lid 13 is opened, and the toilet seat lid 13 is rotatably mounted on the main body 11 around the shafts 109, 109. By rotatably supporting the toilet seat lid 13 on the main body 11 attached to the toilet bowl 1 in this way, the toilet seat lid 13 is mounted on the toilet bowl 1 so that it can be opened and closed freely. The second motor unit 110 corresponds to a second drive mechanism for moving the jetting device 28 to a desired position, and is configured to use a single motor as a drive source to move the jetting device 28, particularly the jetting outlet 29, to a desired position.

[0043] Control means 101 has the function of outputting display control signals to main body display 22 based on operation signals from main body operation unit 21 and remote control light receiving unit 23, and detection signals from seating switch 19 and, in a modified example, lid sensor 108, and also outputs drive control signals to deodorizing fans 38, 65, hot water heater 102, toilet seat heater 103, water supply pump 104, switching valve 105, first motor unit 106, and second motor unit 110. These functions are realized by control means 101 reading, with an arithmetic and control device, a program recorded in memory, which serves as the recording medium described above, and in this embodiment in particular, control means 101 is provided with programs that cause it to mainly function as heating control unit 111, washing control unit 112, and deodorization control unit 113.

[0044] The heating control unit 111 controls the operation of the hot water heater 102 and the toilet seat heater 103, which are heating means of the toilet seat device 10. Specifically, the heating control unit 111 sends an appropriate control signal to the hot water heater 102 so that the cleaning liquid sprayed from the cleaning nozzle 25 is heated to the hot water temperature stored and set in the memory of the control means 101, regardless of whether a user is seated on the toilet seat 12 in normal mode, and separately sends an appropriate control signal to the toilet seat heater 103 so that the toilet seat 12 is heated to the toilet seat temperature stored and set in the memory. Furthermore, each time the hot water temperature adjustment button 91-9 on the remote control operation unit 91 is pressed and the operation signal is received by the remote control light receiving unit 23, the heating control unit 111 adjusts the hot water temperature stored and set in memory in stages in the order of "off" → "low" → "medium" → "high" → "off," and each time the toilet seat temperature adjustment button 91-10 on the remote control operation unit 91 is pressed and the operation signal is received by the remote control light receiving unit 23, the heating control unit 111 adjusts the toilet seat temperature stored and set in memory in stages in the order of "off" → "low" → "medium" → "high" → "off." Here, if the hot water temperature adjustment button 91-9 is manually pressed to the "off" state, i.e., if no hot water temperature is set and stored in memory, the heating control unit 111 stops power supply to the hot water heater 102 and stops heating the cleaning liquid from the cleaning nozzle 25. Similarly, when the toilet seat temperature adjustment button 91-10 is manually operated to the "off" state, i.e., when the toilet seat temperature is not set and stored in the memory, the power supply to the toilet seat heater 103 is stopped, and heating of the toilet seat 12 is stopped.

[0045] In addition, the heating control unit 111 has the function of switching the operation of the toilet seat heater 103 between the normal mode and the first power saving mode described above each time the power saving 1 button 91-11 on the remote control operation unit 91 is pressed and the operation signal is received by the remote control light receiving unit 23, and of switching the operation of the toilet seat heater 103 between the normal mode and the second power saving mode described above each time the power saving 2 button 91-12 on the remote control operation unit 91 is pressed and the operation signal is received by the remote control light receiving unit 23. When the power saving 1 mode is set by the power saving 1 button 91-11, the heating control unit 111 automatically sets a power saving toilet seat temperature that is lower than any normal toilet seat temperature that can be set by the hot water temperature adjustment button 91-9, regardless of the normal toilet seat temperature that is stored and set in memory by the hot water temperature adjustment button 91-9, and when the seat switch 19 detects that the user has sat on the toilet seat 12, it sends an appropriate control signal to the toilet seat heater 103 so that the toilet seat heater 103 is energized until the toilet seat 12 reaches the set normal toilet seat temperature, and when the seat switch 19 detects that the user has not sat on the toilet seat 12, for example by standing up from the toilet seat 12, it sends an appropriate control signal to the toilet seat heater 103 so that the toilet seat 12 reaches the power saving toilet seat temperature. In this way, in the first power saving mode, when the user is not seated on the toilet seat 12, the operation of the toilet seat heater 103 is controlled so that the toilet seat 12 reaches a power saving toilet seat temperature, thereby shortening the time that electricity is supplied to the toilet seat heater 103 and achieving a power saving effect.

[0046] Furthermore, when the power saving 2 mode is set by the power saving 2 button 91-12, the heating control unit 111 stops supplying electricity to the hot water heater 102 and the toilet seat heater 103 until a first hour (e.g., 8 hours) has elapsed since the power saving 2 mode was set, and until a second hour (e.g., 16 hours) has elapsed since the first hour has elapsed, the hot water heater 102 is energized so that the cleaning liquid sprayed from the cleaning nozzle 25 has the set hot water temperature, and the toilet seat heater 103 is energized so that the toilet seat 12 has the set toilet seat temperature, and thereafter the operations for the first hour and the second hour are repeated until the setting is switched from the power saving 2 mode to the normal mode by the power saving 2 button 91-12. However, when the seat switch 19 detects that a user has sat on the toilet seat 12, even during the first hour, the hot water heater 102 is energized so that the cleaning liquid sprayed from the cleaning nozzle 25 reaches the set hot water temperature, and the toilet seat heater 103 is energized so that the toilet seat 12 reaches the set toilet seat temperature. As a result, for example, if the second power-saving mode is set before going to bed, power to the hot water heater 102 and the toilet seat heater 103 is stopped unless the user sits on the toilet seat 12 during the nighttime when it is not used much, thereby achieving a power-saving effect.

[0047] The flushing control unit 112 controls the operations of the water supply pump 104, the switching valve 105, the first motor unit 106, and the second motor unit 110, which are flushing means of the toilet seat device 10. Specifically, during the period when the seat switch 19 detects that the user is seated on the toilet seat 12, the cleaning control unit 112 accepts operation inputs from the stop button, buttocks button, and bidet button on the main unit operation unit 21, and the stop button 91-1, buttocks button 91-2, and bidet button 91-3 on the remote control operation unit 91, and when the buttocks button on the main unit operation unit 21 or the buttocks button 91-2 on the remote control operation unit 91 is pressed during this seating period, it operates the first motor unit 106 so that the buttocks washing nozzle in the cleaning nozzle 25 moves forward from a retracted position below the toilet seat 12 to a protruding position, supplies tap water as a cleaning liquid delivered from the water supply pump 104 to the buttocks washing nozzle, and controls the operation of the water supply pump 104 and the switching valve 105 so that tap water is sprayed from the outlet of the buttocks washing nozzle towards the first private part of the user with a set water force (pressure). Furthermore, when the bidet button on the main body operation unit 21 or the bidet button 91-3 on the remote control operation unit 91 is pressed during the above-mentioned seating period, the wash control unit 112 operates the first motor unit 106 so that the bidet wash nozzle in the wash nozzle 25 moves forward from a retracted position below the toilet seat 12 to a protruding position, and controls the operation of the water supply pump 104 and the switching valve 105 so that tap water delivered from the water supply pump 104 is supplied to the bidet wash nozzle and sprayed from the outlet of the bidet wash nozzle toward the user's second private parts with a set water force. Furthermore, when the stop button on the main body operation unit 21 or the stop button 91-1 on the remote control operation unit 91 is pressed during a rear wash in which tap water is sprayed from the rear wash nozzle to wash a first private part of the user while the user is seated on the toilet seat 12, or during a bidet wash in which tap water is sprayed from the bidet wash nozzle to wash a second private part of the user, the wash control unit 112 stops the operation of the water supply pump 104 so that the spraying of tap water from the rear wash nozzle or the bidet wash nozzle stops, and controls the operation of the first motor unit 106 so that the rear wash nozzle or the bidet wash nozzle returns to its retracted position.

[0048] The cleaning control unit 112 accepts operation inputs from the move button 91-4, forward button 91-5, and back button 91-6 of the remote control operation unit 91 during the above-mentioned posterior cleansing and bidet cleansing. For example, when the move button 91-4 is pressed during the posterior cleansing, the cleaning control unit 112 controls the operation of the first motor unit 106 so that a move cleansing is performed in which the posterior cleansing nozzle moves back and forth continuously within a predetermined range. Similarly, when the move button 91-4 is pressed during the bidet cleansing, the cleaning control unit 112 controls the operation of the first motor unit 106 so that a move cleansing is performed in which the bidet cleansing nozzle moves back and forth continuously within a predetermined range. This allows the user's first and second private parts to be cleaned over a wide area.

[0049] Furthermore, when the front button 91-5 is pressed during a posterior cleansing operation, the cleansing control unit 112 controls the operation of the first motor unit 106 to move the position of the posterior cleansing nozzle further forward than before, and when the rear button 91-6 is pressed during a posterior cleansing operation, the cleansing control unit 112 controls the operation of the first motor unit 106 to move the position of the posterior cleansing nozzle further backward than before. Similarly, when the front button 91-5 is pressed during a bidet cleansing operation, the cleansing control unit 112 controls the operation of the first motor unit 106 to move the position of the bidet cleansing nozzle further forward than before, and when the rear button 91-6 is pressed during a bidet cleansing operation, the cleansing control unit 112 controls the operation of the first motor unit 106 to move the position of the bidet cleansing nozzle further backward than before. This allows for pinpoint cleansing of the user's first and second private parts.

[0050] Furthermore, the flushing control unit 112 accepts operation inputs from the weak button 91-7, strong button 91-8, and nozzle cleaning button 91-15 of the remote control operation unit 91, regardless of whether the user is seated on the toilet seat 12. For example, when the weak button 91-7 for adjusting water pressure is pressed, the flushing control unit 112 resets the water pressure of the tap water sprayed from the wash nozzle 25 during rear wash or bidet wash to a weaker pressure, whereas when the strong button 91-8 for adjusting water pressure is pressed, the flushing control unit 112 resets the water pressure to a stronger pressure. This setting is possible even when a rear wash or bidet wash is not in progress, allowing the user to perform the rear wash or bidet wash at their preferred water pressure. Furthermore, when the nozzle cleaning button 91-15 is pressed, the cleaning control unit 112 controls the operation of the water supply pump 104, the switching valve 105 and the first motor unit 106 so that the cleaning nozzle 25 is advanced from a retracted position below the toilet seat 12 to a predetermined position while cleaning the cleaning nozzle 25 with tap water spurting from the nozzle of the cleaning nozzle 25. This makes it possible to wipe the cleaning nozzle 25 advanced to a predetermined position while cleaning the cleaning nozzle 25 with tap water when cleaning the toilet seat device 10, or to clean the cleaning nozzle 25 after removing it from the main body 11.

[0051] In this embodiment, the flush control unit 112 accepts an operation input from the mist button 91-13 on the remote control operation unit 91, regardless of whether the user has opened the toilet seat lid 13 or whether the user has sat on the toilet seat 12, and when the mist button 91-13 is pressed, it controls the operation of the water supply pump 104 and the switching valve 105 so that tap water delivered from the water supply pump 104 is supplied to the spraying device 28 and the tap water used as cleaning liquid is sprayed from the spray outlet 29 toward the bowl portion 2 of the toilet 1 for a certain period of time to wet the inner surface of the bowl portion 2. The flush control unit 112 has a flush spray function for the toilet 1, including a pre-flush spray that sprays a mist of cleaning liquid from the spraying device 28 toward the inner surface of the bowl portion 2 of the toilet 1, when the mist button 91-13 on the remote control operation unit 91 is pressed, regardless of whether the user has entered the toilet room S, opened the toilet seat lid 13, or sat on the toilet seat 12. Here, a remote control 14 separate from the main body 11 is used, and the cleaning control unit 112 accepts only the operation input from the mist button 91-13 provided as an operating body on the remote control 14, and performs cleaning spray from the spray device 28 onto the toilet bowl 1, eliminating the need for a lid sensor that triggers the opening of the conventional toilet seat lid 13.

[0052] Furthermore, in a toilet seat device 10 equipped with a lid sensor 108, the flush control unit 112 receives an operation input from the mist button 91-13 of the remote control operation unit 91 described above, as well as a detection signal from the lid sensor 108 when the toilet lid 13 is opened from a closed position. In this case, when a user opens the toilet lid 13 to use the toilet 1, the flush control unit 112 receives a detection signal from the lid sensor 108 and controls the operation of the water supply pump 104 and the switching valve 105, respectively, to perform a pre-wash spray in which tap water, which serves as a cleaning liquid, is sprayed from the outlet 29 of the spraying device 28 toward the bowl 2 of the toilet 1 for a certain period of time. Even if the mist button 91-13 is pressed at least from the start to the end of the pre-wash spray, the flush control unit 112 does not accept any operation input from the mist button 91-13, invalidating it and suppressing unnecessary flush spray toward the toilet 1. On the other hand, when the mist button 91-13 is pressed after the pre-cleaning spray has finished and a certain amount of time has passed, allowing the user to check for dirt adhering to the inner surface of the bowl portion 2, the cleaning control unit 112 will then accept operation input from the mist button 91-13 regardless of the detection output from the lid sensor 108, and will be able to perform an additional cleaning spray toward the toilet bowl 1.

[0053] In this modified example, instead of the lid sensor 108, a human body detection means such as an infrared sensor that detects a user's entry into the toilet room S may be used. In this case, when the human body detection means detects the presence of a user, a pre-cleaning spray is performed in which cleaning liquid is sprayed from the spraying device 28 toward the bowl portion 2 of the toilet 1, and at least from the start to the end of the pre-cleaning spray, even if the mist button 91-13 is pressed, no operation input from the button is accepted and the button is disabled. Then, after a certain time has passed since the pre-cleaning spray ended, the cleaning control unit 112 is configured to accept operation input from the mist button 91-13 and perform an additional cleaning spray toward the toilet 1, regardless of the detection output from the lid sensor 108.

[0054] Regardless of whether the toilet is equipped with the above-mentioned lid sensor 108 or human body detection means, as long as the seat switch 19 detects that a user is seated on the toilet seat 12, the flushing control unit 112 disables operation from the mist button 91-13, thereby preventing the atomized tap water from the spraying device 28 from splashing on the user.

[0055] As another variation, in a toilet seat device 10 equipped with a second motor unit 110 that enables movement of the spraying device 28 relative to the main body 11, the flushing control unit 112 may be configured to accept operation of the mist button 91-13 when the mist button 91-13 is operated and control the operation of the second motor unit 110 so that the cleaning liquid is sprayed in a different direction compared to when the user is not seated on the toilet seat 12, rather than disabling operation of the mist button 91-13 while the user is seated on the toilet seat 12. Additionally or instead, the operation of the water supply pump 104 may be controlled so that when the mist button 91-13 is operated while the user is seated on the toilet seat 12, the force of the cleaning liquid is weakened compared to when the user is not seated on the toilet seat 12. In either case, when the mist button 91-13 is operated while the user is seated on the toilet seat 12, the spraying device 28 is configured so that the way the cleaning liquid is sprayed is different from when the user is not seated on the toilet seat 12, thereby preventing the cleaning liquid from splashing on the user from the spraying device 28.

[0056] The deodorizing control unit 113 controls the operation of the deodorizing fan 38 incorporated in the deodorizing unit 34 and the fan 65 incorporated in the exhaust device 51. Specifically, when the seating switch 19 detects that a user has sat on the toilet seat 12, the cleaning control unit 112 starts the operation of the deodorizing fan 38 to remove odors from inside the toilet bowl 1, and when the seating switch 19 subsequently detects that the user is no longer seated on the toilet seat 12, the cleaning control unit 112 stops the operation of the deodorizing fan 38 after a predetermined time (for example, one minute) has passed.

[0057] The deodorization control unit 113 detects with the lid sensor 108 that the toilet seat lid 13 has been opened, and then the seat switch 19 detects that the user has sat on the toilet seat 12, and when the lid sensor 108 detects that the toilet seat lid 13 has been closed, it starts operating the fan 65 to remove odors from inside the toilet bowl 1, and stops the operation of the fan 65 a predetermined time (for example, 10 minutes) after starting operation, and also stops the operation of the fan 65 if the lid sensor 108 detects that the user has opened the toilet seat lid 13 before the predetermined time has elapsed. Note that, due to the structure of the toilet seat device 10, the toilet seat lid 13 must be opened before the seat switch 19 can detect that the user has sat on the toilet seat 12, so it is possible to omit the lid sensor 108 detecting that the toilet seat lid 13 has been closed before the seat switch 19 detects that the user has sat on the toilet seat 12.

[0058] As a modified example, the deodorization control unit 113 may be configured to have the lid sensor 108 detect that the toilet lid 13 has been opened, and then, even if there is no detection by the seat switch 19, if the lid sensor 108 detects that the toilet lid 13 has been closed, control the fan 65 to start operating to remove odors from inside the toilet bowl 1. An example of this would be a case where the toilet bowl 1 is used without a person sitting on the toilet seat 12, with the toilet seat 12 and toilet lid 13 open. Alternatively, the fan 65 may be controlled to start operating if the lid sensor 108 detects that the toilet lid 13 has been closed a predetermined time (e.g., 30 seconds) after detecting that the toilet lid 13 has been opened; in this case, the fan 65 will not operate if the toilet lid 13 is opened and closed in a short period of time without the toilet bowl 1 being used.

[0059] In another variation, the deodorization control unit 113 may start the operation of the fan 65 when the lid sensor 108 detects that the toilet seat lid 13 has been opened, and then stop the operation of the fan 65 after a predetermined time (for example, 10 minutes) has passed, during which time the toilet room S can be deodorized, neutralized, and fragranced. If the exhaust device 51 is equipped with a fragrance means, the exhaust port 62 faces upward when the toilet seat lid 13 is open, and the air in the toilet room S can be made to smell pleasant and exhausted upward from the exhaust port 62, filling the toilet room S with a pleasant fragrance.

[0060] The control means 101 sends a display control signal to the main body display unit 22 as needed to visually inform the user of the operating status of the toilet seat device 10. For example, when a predetermined operating voltage is supplied to each unit including the control means 101, the control means 101 lights up the power lamp on the main body display unit 22, and when the heating control unit 111 controls the operation of the toilet seat heater 103 to heat the toilet seat 12, the control means 101 lights up the toilet seat lamp on the main body display unit 22. Furthermore, when the heating control unit 111 has set the first power saving mode or the second power saving mode, the control means 101 lights up the power saving lamp on the main body display unit 22 to indicate this, and when the deodorization control unit 113 becomes able to control the operation of the deodorizing fan 38, the control means 101 lights up the deodorizing lamp on the main body display unit 22 to indicate this. In addition, the control means 101 is configured to flash the lamps on the main body display unit 22 if any abnormality occurs in the main body 11.

[0061] 13 shows an example of the electrical configuration of remote control 14, in which control means 121 is mainly composed of, for example, a microcomputer as an arithmetic and control device, a memory as a recording medium, an input / output interface for analog / digital conversion, etc., and is mounted inside remote control 14 to control the overall operation of remote control 14. A remote control operation unit 91 is electrically connected to an input port of control means 121, and a remote control display unit 92 and a remote control transmission unit 122 are electrically connected to an output port of control means 121.

[0062] The control means 121 has the function of outputting a display control signal to the remote control display unit 92 based on each operation signal from the remote control operation unit 91 and outputting a transmission control signal corresponding to each operation signal to the remote control transmission unit 122. These functions are realized by the control means 121 reading a program recorded in a memory, which serves as the aforementioned recording medium, using an arithmetic and control device. In particular, in this embodiment, the control means 121 is provided with a program that causes the control means 121 to function primarily as a remote control control unit 123. When any of the buttons 91-1 to 91-16 on the remote control operation unit 91 is pressed, the remote control control unit 123 receives the operation signal and sends a transmission control signal to the remote control transmission unit 122. The remote control transmission unit 122 transmits a transmission signal corresponding to the control signal from the remote control control unit 123. The control means 101 on the main body 11 receives this transmission signal via the remote control light receiving unit 23 and identifies which of the buttons 91-1 to 91-16 on the remote control operation unit 91 has been operated. Therefore, the exhaust device 51 can be started or stopped by operating the button 91-16.

[0063] Next, we will explain the operation of the toilet seat device 10 configured as described above. Before a user uses the toilet 1, the toilet seat lid 13 is closed so as to cover the upper surface of the toilet seat 12 that is tilted toward the toilet 1 and the upper opening of the bowl portion 2 of the toilet 1.

[0064] In the toilet seat device 10, when a user enters the toilet room S, opens the toilet seat cover 13 to use the toilet 1, and then sits on the toilet seat 12, which is detected by the seat switch 19, the deodorization control unit 113 automatically starts the operation of the deodorizing fan 38 to remove odors from inside the toilet 1. When the user, while seated on the toilet seat 12, presses the buttocks button 91-2 or bidet button 91-3 on the remote control operation unit 91, or the buttocks button or bidet button on the main body operation unit 21, the flushing control unit 112 controls the operation of the water supply pump 104, the switching valve 105, and the first motor unit 106 to move the flushing nozzle 25 forward from a retracted position below the toilet seat 12 to a protruding position, and also sprays tap water as a cleaning liquid from the spray outlet of the flushing nozzle 25 toward the user with a preset water force to wash the user's private parts. Thereafter, when the user presses the stop button 91-1 on the remote control operation unit 91 or the stop button on the main body operation unit 21, the cleaning control unit 112 stops the operation of the water supply pump 104, stops the spraying of tap water from the cleaning nozzle 25, and controls the operation of the first motor unit 106 to return the cleaning nozzle 25 to its original retracted position. When the seat switch 19 detects that the user has stood up and left the toilet seat 12, the deodorization control unit 113 stops the operation of the deodorizing fan 38 after a predetermined time has passed.

[0065] Furthermore, when the lid sensor 108 detects that the user has closed the toilet seat lid 13 after using the toilet bowl 1, the toilet seat device 10 starts operating the fan 65, and then stops the operation of the fan 65 after a predetermined time (for example, 10 minutes) has passed. Furthermore, if the user opens the toilet seat lid 13 before the predetermined time has passed and the lid sensor 108 detects that the toilet seat lid 13 has been opened, the operation of the fan 65 is stopped.

[0066] In a modified toilet seat device 10 that does not have a lid sensor 108, a user enters the toilet room S and opens the toilet 1 to use it. The user then sits on the toilet seat 12, and when this is detected by the seating switch 19 provided on the casing 15, the deodorization control unit 113 automatically starts the operation of the deodorizing fan 38 to remove odors from inside the toilet 1. When the user, while seated on the toilet seat 12, presses the buttocks button 91-2 or bidet button 91-3 on the remote control operation unit 91, or the buttocks button or bidet button on the main body operation unit 21, the flushing control unit 112 controls the operation of the water supply pump 104, the switching valve 105, and the first motor unit 106 to move the flushing nozzle 25 forward from a retracted position below the toilet seat 12 to a protruding position, and also sprays tap water as a cleaning liquid from the spray outlet of the flushing nozzle 25 toward the user with a preset water pressure to wash the user's private parts. Thereafter, when the user presses the stop button 91-1 on the remote control operation unit 91 or the stop button on the main body operation unit 21, the cleaning control unit 112 stops the operation of the water supply pump 104, stops the spraying of tap water from the cleaning nozzle 25, and controls the operation of the first motor unit 106 to return the cleaning nozzle 25 to its original retracted position. When the seat switch 19 detects that the user has stood up and left the toilet seat 12, the deodorization control unit 113 stops the operation of the deodorizing fan 38 after a predetermined time has passed.

[0067] In the series of actions performed by the user to use the toilet 1 described above, unless the user operates the mist button 91-13 on the remote control operation unit 91, that is, unless the user intends to spray a cleaning jet toward the toilet 1, the spraying device 28 will not operate unnecessarily and tap water used as cleaning fluid will not be sprayed wastefully from the spraying device 28. Conversely, regardless of whether the user enters the toilet room S or opens the door, only when the user intends to operate the mist button 91-13 will the flushing control unit 112 control the operation of the water supply pump 104 and the switching valve 105, and tap water will be sprayed in mist form from the spraying device 28 toward the toilet 1, thereby enabling the toilet seat device 10 to conserve cleaning fluid. Moreover, since this mist button 91-13 is provided on a remote control 14 that is provided separately from the main body 11, the user can easily operate the mist button 91-13 on the remote control operation unit 91 before sitting on the toilet seat 12, and the toilet bowl 1 can be pre-wetted with cleaning liquid from the spray device 28, and feces can be easily removed from the inner surface of the toilet bowl 1 by the user operating the mist button 91-13, without the need to take the trouble of providing a lid sensor 108.

[0068] In the toilet seat device 10 of this embodiment, which is equipped with a lid sensor 108, the action of the user opening the toilet bowl 1 before using it triggers the flush control unit 112 to control the operation of the water supply pump 104 and the switching valve 105 based on a detection signal from the lid sensor 108, and tap water, which serves as cleaning fluid, is sprayed in a mist form toward the toilet bowl 1 from the nozzle 29 of the spray device 28 for a certain period of time. Even if the user operates the mist button 91-13 on the remote control operation unit 91 during this pre-cleaning spray toward the toilet bowl 1, the flush control unit 112 does not accept and disables the operation input from the mist button 91-13, suppressing unnecessary flushing spray toward the toilet bowl 1. On the other hand, the flush control unit 112 accepts operation input from the mist button 91-13 once a certain amount of time has passed since the pre-cleaning spray ended, and allows an additional flushing spray toward the toilet bowl 1 if the user has confirmed that the interior surface of the toilet bowl 1 is clean after the pre-cleaning spray.

[0069] Furthermore, even in a toilet seat apparatus 10 equipped with a human body detection sensor instead of the lid sensor 108, when the human body detection sensor detects the user's action when they enter the toilet room S, the flush control unit 112 will not accept any operation input from the mist button 91-13 and will disable it while the flush control unit 112 is performing a pre-wash spray in which a mist of tap water is sprayed from the outlet 29 of the spray device 28 toward the toilet bowl 1 for a certain period of time, and will then accept operation input from the mist button 91-13 once a certain period of time has passed since the pre-wash spray has ended. In this way, when the lid sensor 108 or human body detection sensor is provided, by only accepting operation of the mist button 91-13, unnecessary flush sprays will not be performed, and the toilet seat apparatus 10 can be expected to conserve cleaning fluid.

[0070] Regardless of the presence or absence of the above-mentioned lid sensor 108 or human body detection sensor, the flushing control unit 112 receives a detection signal from the seating switch 19 and disables operation input from the mist button 91-13 on the remote control operation unit 91 at least while the user is seated on the toilet seat 12. This prevents the user from being sprayed with atomized tap water from the spraying device 28. As a modified example, in a toilet seat device 10 configured to be able to move the spraying device 28 relative to the main body 11 by the second motor unit 110, if the mist button 91-13 is operated while the user is seated on the toilet seat 12, the flushing control unit 112 may control the operation of the second motor unit 110 to spray mist-like tap water in a direction different from when the user is not seated on the toilet seat 12. Furthermore, if the mist button 91-13 is operated while the user is seated on the toilet seat 12, the flush control unit 112 may control the operation of the water supply pump 104 to weaken the force of the tap water sprayed from the spraying device 28 compared to when the user is not seated on the toilet seat 12. In these cases as well, it is possible to prevent the atomized tap water from the spraying device 28 from splashing on the user.

[0071] When the cleaning control unit 112 receives an operation input from the mist button 91-13, it controls the operation of the water supply pump 104 so that, for example, the longer the mist button 91-13 is pressed, the stronger the force of the tap water sprayed from the spraying device 28 becomes, or if the mist button 91-13 is pressed for a short time less than a certain time, tap water is sprayed from the spraying device 28 for a preset time, and if the mist button 91-13 is pressed for a long time greater than a certain time, tap water continues to be sprayed from the spraying device 28 for a longer time than the preset time in proportion to the time the mist button 91-13 is pressed. In this way, if the spraying device 28 controls the operation of, for example, the water supply pump 104 so that the way in which cleaning liquid is sprayed from the spraying device 28 changes depending on how the user operates the mist button 91-13, it becomes possible to switch between various ways in which cleaning liquid is sprayed from the spraying device 28 with a single mist button 91-13.

[0072] As described above, the toilet seat device 10 of this embodiment comprises a toilet seat lid 13 that can freely open and close the central opening 12A of the toilet seat 12 provided on the toilet bowl 1, a lid exhaust port 52 provided on the toilet seat lid 13 corresponding to the central opening 12A, and an exhaust device 51 provided on the toilet seat lid 13 that exhausts air inside the toilet bowl 1 to the outside of the toilet bowl 1 through the lid exhaust port 52.

[0073] Therefore, by providing the lid exhaust port 52 on the toilet seat lid 13 and providing the exhaust device 51 on the toilet seat lid 13, the lid exhaust port 52 can be positioned above the center of the bowl portion 2 of the toilet seat 12, allowing odorous air to be exhausted from the center of the toilet seat 12, improving exhaust efficiency. Also, compared to when the fan is provided inside the main body 11, there are no space restrictions, making it possible to use a large fan 65, and there are fewer restrictions on the placement of the internal parts of the exhaust device 51, making assembly easier.

[0074] In the above-described toilet seat device 10, the exhaust device 51 includes an exhaust casing 53 provided on the upper surface 13A of the toilet seat lid 13, and the exhaust casing 53 includes an intake port 61 connected to the lid exhaust port 52, an exhaust port 62, and an exhaust means 64 that exhausts air sucked in through the intake port 61 from the exhaust port 62.

[0075] In this case, by attaching exhaust casing 53 to upper surface 13A of toilet seat lid 13 and driving exhaust means 64, air inside toilet bowl 1 sucked in through suction port 61 can be exhausted to the outside of the toilet bowl through exhaust port 62. Also, because exhaust casing 53 is on upper surface 13A of toilet seat lid 13, excrement does not adhere to exhaust casing 53, and further, because toilet seat lid 13 is opened when using toilet 1, excrement does not adhere to lid exhaust port 52 during use.

[0076] In the toilet seat device 10 described above, the exhaust device 51 is provided with at least one of a deodorizing means, a deodorizing filter 67, and a fragrance means, all of which are odor treatment means.

[0077] In this case, the odor-containing air inside the toilet 1 can be deodorized or eliminated before being exhausted, or the air can be exhausted after being made to have a pleasant scent.

[0078] The toilet seat device 10 described above includes a toilet seat cover 71 made of resin that is detachably provided on the underside of the toilet seat 12.

[0079] In this case, even if dirt adheres to the underside of the toilet seat 12, the toilet seat cover 71 can be removed and the dirt or stains can be easily cleaned.

[0080] The above-mentioned toilet seat device 10 is equipped with functional components such as a cleaning nozzle 25, a spray device 28, and a spray outlet 29, and is equipped with a main body 11 that can be attached to the toilet bowl 1, and a resin main body cover 81 that is detachably attached to the underside of the main body 11.

[0081] In this case, even if dirt adheres to the underside of the main body 11, the dirt and stains can be easily cleaned by removing the main body cover 81. In this way, dirt on the underside of the main body 11, which is easily left unattended because it is not easily visible during normal use, can be easily cleaned.

[0082] In addition, in the toilet seat device 10 described above, the main body cover 81 is provided on the underside of the main body 11 at a position facing the bowl portion 2, which is the toilet bowl of the toilet stool 1.

[0083] As a result, by covering the parts that are easily soiled because they face the inside of the toilet bowl 1 with the main body cover 81, it is possible to prevent the parts that are easily soiled from becoming soiled.

[0084] In the toilet seat device 10, the toilet seat cover 71 is provided with holes 72 as openings for the toilet seat corresponding to the toilet seat legs 18 and seat switch 19, which are parts that are provided on the toilet seat cover 71 and function when in contact with the toilet bowl 1. As a result, even if the toilet seat cover 71 is provided on the underside of the toilet seat 12, the toilet seat legs 18, which are functional parts of the toilet seat 12, will contact the toilet bowl 1 and function as usual. Also, in the toilet seat device 10, the main body cover 81 is provided with openings 84, 84A for the main body corresponding to the flush nozzle 25 and the outlet 29, which are parts that function when connected to the inside of the toilet bowl 1. As a result, even if the main body cover 81 is provided on the underside of the main body 11, the outlet 29, which is a functional part of the main body 11, communicates with the inside of the toilet bowl 1, so the functional parts will function as usual without any hindrance.

[0085] The exhaust device 51 comprises a lid exhaust port 52 provided in the toilet seat lid 13, a cylindrical exhaust casing 53, an intake port 61 provided at the bottom at the rear of one side of the exhaust casing 53 in the longitudinal direction, that is, the front side, and connected to the lid exhaust port 52, an exhaust port 62 provided at the front side of the other side of the exhaust casing 53 in the longitudinal direction, an internal passage 63 provided within the exhaust casing 53 between the intake port 61 and the exhaust port 62, a fan 65 provided in the internal passage 63 as a pressure-feeding means that sucks air in through the intake port 61 and discharges it from the exhaust port 62, and an odor treatment means detachably provided within the internal passage 63. Therefore, by incorporating the exhaust device 51 into the toilet seat lid 13, odor-containing air within the toilet 1 can be efficiently exhausted.

[0086] The exhaust casing 53 is detachably attached to the toilet seat cover 13 by an attachment / detachment means 56, so that the exhaust casing 53 can be easily replaced, and in the removed state, it can be easily disassembled into an upper exhaust casing 54 and a lower exhaust casing 55, and the odor treatment means can also be easily replaced.

[0087] The exhaust casing 53 has a cylindrical suction port 61, which fits into the lid exhaust port 52, thereby aligning the exhaust casing 53 with the toilet seat lid 13. For this reason, the suction port 61 and the lid exhaust port 52 are formed in a shape that limits the attachment direction of the exhaust casing 53 to the toilet seat lid 13 when the suction port 61, such as a square, and the lid exhaust port 52 are fitted together. In the drawing, the tip of the suction port 61 protrudes from the underside of the toilet seat lid 13, but the tip of the suction port 61 may be configured to be flush with the underside of the toilet seat lid 13. In addition, because the exhaust device 51 is elongated in the front-to-rear direction and is located in the center of the left and right shafts 47, 47 of the toilet seat 12, the center of gravity of the toilet seat 12 does not shift left or right, and the opening and closing operation of the toilet seat 12 is not impaired.

[0088] The toilet seat cover 71 is provided with an attachment means 74 for removably attaching the toilet seat cover 71 to the underside of the toilet seat 12, preventing the toilet seat cover 71 from coming off when the toilet seat 12 is opened or closed. The attachment means 74 uses a magnetic sheet 75, which is an attachment means using magnetic force, on one side of the toilet seat 12 or the toilet seat cover 71, and a sheet-like attached member 76 on the other side of the toilet seat 12 or the toilet seat cover 71. The magnetic sheets 75 are arranged in three locations on the front left and right sides and the center of the rear side of the toilet seat cover 71, allowing for easy attachment and detachment and a stable attachment state. The attachment and detachment means may also be sheet-like hook-and-loop fasteners. The rear of the toilet seat cover 71 is integrally provided with a rear cover portion 71A that covers the rear portion 45 of the toilet seat 12, preventing dirt from adhering to the rear portion 45, which is difficult to clean when the toilet seat 12 is open.

[0089] The main body cover 81 is detachably attached to the underside of the main body 11 by inserting its rear edge into the gap 80, making it easy to attach and detach. In this case, the main body cover 81 is stably attached because insertion portions 83 located on the left, right, and rear of the top opening 2A are inserted into the gap 80. Furthermore, the front edge 81F of the main body cover 81 is integrally formed with multiple positioning portions 86, 86. Therefore, the front and rear positions of the main body cover 81 can be determined by abutting the positioning portions 86, 86 against the curved front surface 11A of the main body 11. Furthermore, when replacing the main body cover 81, the positioning portions 86, 86 can be hooked with fingers to pull out the main body cover 81. Furthermore, both covers 71, 81 have antibacterial properties, which can inhibit bacterial growth. [Example]

[0090] FIG. 14 shows an exhaust casing 53 of an exhaust device 51 according to a second embodiment of the present invention. As shown in the figure, the exhaust device 51, which is provided on the toilet seat cover 13 of the toilet seat device 10, is powered by a battery 131, and a battery storage section 132 for detachably storing the battery 131 is provided within the exhaust casing 53. An operating section 133 such as a switch is also provided on the exhaust casing 53, and when the operating section 133 is turned on or off, a fan control means (not shown) controls the driving means 66 to drive or stop the rotation of the fan 65. When the operating section 133 is turned on, the fan control means, which includes a timing means, drives the fan 65, and stops the operation of the fan 65 after a predetermined time (e.g., 10 minutes) has elapsed since the start of driving. If the operating section 133 is turned off before the predetermined time has elapsed, the fan 65 will stop.

[0091] By using the battery 131 as the power source for the fan 65 in this way, the electric cable 60 is no longer necessary, and the exhaust device 51 can be driven by operating a switch or the like, thereby simplifying the structure of the exhaust device 51. [Example]

[0092] Figure 15 shows a toilet seat apparatus 10 according to a third embodiment of the present invention. As shown in the figure, the toilet seat apparatus 10 is configured so that a deodorizing sheet 141, which is a deodorizing means made of a nonwoven fabric or the like that is loaded with an odor-absorbing material such as activated carbon or bamboo charcoal, or a deodorizing device 142, which is a battery-powered exhaust device that deodorizes for a predetermined period of time (e.g., 10 minutes) when the toilet seat lid 13 is closed, such as a plasma (ozone) deodorizer or photocatalyst deodorizer, or a deodorizing / fragrancing means 143, such as a deodorizing / fragrancing sheet loaded with an aromatic agent in addition to deodorizing, is detachably attached to the underside of the toilet seat lid 13 at a position facing the bowl portion 2 of the toilet 1 at the central opening 12A of the toilet seat 12 on the underside of the toilet seat lid 13.

[0093] When the deodorizing device 142 is provided on the underside of the toilet seat lid 13, the lid exhaust port 52 is provided on the toilet seat lid 13, the exhaust port of the cylindrical casing of the deodorizing device 142 is connected to this lid exhaust port 52, the exhaust means 64 is provided inside the cylindrical casing, and by driving the exhaust means 64, odor-containing air inside the toilet bowl 1 is sucked in through the suction port provided in the cylindrical casing of the deodorizing device 142 and the deodorized air is exhausted to the outside through the lid exhaust port 52. Also, as a variant, the deodorizing device 142 may be provided with at least one of the deodorizing means, the deodorizing means, and the fragrance means detachably attached.

[0094] The deodorizing / deodorizing / fragrancing means 143, such as the deodorizing sheet 141, the deodorizing device 142, and the deodorizing / fragrancing sheet, are odor treatment means, and are provided with a detachable means (not shown) for detachably attaching the odor treatment means to the underside of the toilet seat cover 13. This detachable means can be selected arbitrarily by applying conventional technology, such as a pocket type, a magnetic attraction type, a hook-fastening type, or a sheet-attached type.

[0095] In this way, the odor treatment means is detachably provided on the underside of the toilet seat cover 13, and the toilet seat cover 13 is opened when the toilet 1 is used, so excrement does not adhere to the underside of the toilet seat cover 13 when in use, and in the case of the deodorizing device 142, the suction fan does not have to be rotated at a high speed to increase suction power, which would result in increased noise, and in the case of the sheet, a wide deodorizing area is ensured, making it possible to ensure sufficient deodorizing performance, and a pleasant scent can be provided when the toilet seat cover 13 is opened.

[0096] As described above, the present invention is not limited to the above-described embodiment and its modifications, and various modifications are possible without departing from the spirit and scope of the present invention. In the embodiment, the covers 71, 81 are attached and detached by magnetic force. However, the attachment may also use a detachable fastening means such as a hook. The deodorizing means may be made of an odor-absorbing material such as activated carbon or bamboo charcoal, or may be powered by electricity. For example, it may be a deodorizing means using plasma or ozone, or a photocatalytic deodorizing means. The fragrance means may be made of an aromatic material. By providing the exhaust device 51, the deodorizing unit 34 provided on the main body 11 may be omitted. Furthermore, the material and thickness of the synthetic resin covers 71, 81 may be appropriately selected. Furthermore, because the exhaust casing 53 is configured to be disassembled, the odor treatment means may be provided in a location other than the exhaust port 62 within the internal passage 63. In the embodiment, the preferred thickness of the covers 71, 81 is 0.2 mm or more and 0.5 mm or less. However, the thickness is not limited to this range and may be appropriately selected. Alternatively, a cylindrical lid exhaust port may be provided on the toilet seat lid 13, and this cylindrical lid exhaust port may be fitted into an intake port provided on the underside of the exhaust casing 53, thereby connecting the lid exhaust port and the intake port. Alternatively, the positioning portion 86 may be provided along the entire length of the front edge portion 81F excluding the openings 84 and 84A. [Explanation of symbols]

[0097] 1 toilet 2 Bowl (toilet bowl) 10 Toilet seat device 11 Main unit 12 toilet seats 12A center opening 13 Toilet seat cover 13A Top 25 Cleaning nozzle (functional part) 51 Exhaust system 52 Lid exhaust port 53 Exhaust casing 54 Exhaust casing upper part 55 Lower part of exhaust casing 61 Intake port 62 Exhaust port 64 Exhaust means 71 Toilet seat cover 81 Main unit cover

Claims

1. A toilet seat cover that can freely open and close a central opening of the toilet seat provided on the toilet bowl, a lid exhaust port provided in the toilet seat lid corresponding to the central opening; an exhaust device that is detachably attached to the toilet seat lid and that exhausts air from within the toilet bowl to the outside of the toilet bowl through the lid exhaust port; The exhaust device includes an exhaust casing provided on an upper surface of the toilet seat lid, The toilet seat device is characterized in that the exhaust casing comprises an intake port connected to the lid exhaust port, an exhaust port, and exhaust means for exhausting air drawn in through the intake port through the exhaust port.

2. A toilet seat device as described in claim 1, characterized in that the exhaust casing has a lower exhaust casing portion attached to the toilet seat lid and an upper exhaust casing portion that is detachably attached to the lower exhaust casing portion.

3. A toilet seat device as described in claim 2, characterized in that at least one of a deodorizing means, a deodorizing means and a fragrance means is provided inside the exhaust casing.

4. 4. The toilet seat apparatus according to claim 1, further comprising a toilet seat cover made of resin and detachably provided on the underside of the toilet seat.

5. a main body having functional components and attachable to the toilet bowl; 4. The toilet seat apparatus according to claim 1, further comprising a body cover made of resin and detachably provided on the underside of the body.

6. 6. The toilet seat apparatus according to claim 5, wherein the main body cover is provided on the underside of the main body in a position facing the toilet bowl of the toilet.

Images