CN117941973A

CN117941973A - Toilet seat device

Info

Publication number: CN117941973A
Application number: CN202311415808.1A
Authority: CN
Inventors: 小栗基义
Original assignee: Lixil Corp
Current assignee: Lixil Corp
Priority date: 2022-10-28
Filing date: 2023-10-27
Publication date: 2024-04-30

Abstract

The invention provides a toilet seat device capable of expanding the selection range of materials used. A toilet seat device (10) comprises a seat portion (20) and a holding portion (30) for holding the seat portion (20) on the upper surface of a toilet main body (12), wherein the seat portion (20) is made of a material different from that of the holding portion (30). According to this configuration, a toilet seat device that can expand the range of choice of materials used can be provided.

Description

Toilet seat device

Technical Field

The present disclosure relates to toilet seat devices.

Background

Conventionally, for example, a toilet seat which is held on the upper surface of a toilet body by a holding portion as described in patent document 1 below is known. The toilet seat is disposed along the upper surface of the toilet body and is raised upward from the upper surface of the toilet body.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open publication No. 2019-177011

Disclosure of Invention

Problems to be solved by the invention

The seating part and the holding part of the toilet seat are made of the same material, and the range of materials that can be used for the toilet seat is narrow.

The present disclosure has been made in view of the above circumstances, and an object thereof is to provide a toilet seat device capable of expanding a selection range of materials used.

Technical scheme for solving problems

The toilet seat device of the present disclosure is a toilet seat device having a seating portion and a holding portion that holds the seating portion on an upper surface of a toilet body, wherein a material of the seating portion is different from a material of the holding portion.

Drawings

Fig. 1 is a perspective view showing a toilet seat device according to embodiment 1, which is attached to a toilet body.

Fig. 2 is a bottom view showing the toilet seat device.

Fig. 3 is a partially enlarged perspective view of the toilet seat device in a state of being mounted on the toilet seat support portion.

Fig. 4 is a partially enlarged perspective view of the toilet seat device in a state of being detached from the toilet seat support portion.

Fig. 5 is a perspective view showing the seating portion and the holding portion.

Fig. 6 is a plan view showing the holding portion.

Fig. 7 is a side view showing the holding portion.

Fig. 8 is a rear view showing the holding portion.

Fig. 9 is a partially enlarged perspective view showing a seating part and a holding part of the toilet seat device according to embodiment 2.

Fig. 10 is an enlarged partial plan view showing a toilet seat device according to embodiment 3, which is attached to a toilet seat support.

Fig. 11 is a partially enlarged perspective view showing the seating portion and the holding portion.

Fig. 12 is a perspective view showing a child seat portion attached to a toilet body.

Fig. 13 is a perspective view showing a seat for the elderly person, which is attached to the toilet body.

Fig. 14 is a perspective view showing a state of being attached to the toilet body, showing a seating part for an ostomate.

Fig. 15 is a plan view showing a state of being attached to the toilet body, showing a seating part for an ostomate.

Fig. 16 is a side view showing a state of being attached to the toilet body, showing a seating part for an ostomate.

Fig. 17 is a diagram showing a state in which an ostomate handles excrement in a half rise from one's seat posture.

Fig. 18 is a view showing a state in which an ostomate is treating excrement in a comfortable posture of sitting on a sitting portion for the ostomate.

Fig. 19 is a perspective view showing a seating part of the toilet seat device according to embodiment 4.

Fig. 20 is a bottom view showing the toilet seat device.

Fig. 21 is a side view of the seating part in the first state.

Fig. 22 is an enlarged partial cross-sectional view of the toilet seat device showing a state in which the attachment/detachment portion and the holding portion are removed.

Fig. 23 is an enlarged partial cross-sectional view of the toilet seat device showing a state in which the seating part and the holding part are attached.

Fig. 24 is a rear view of a seating part showing an example of the fitting part.

Fig. 25 is a rear view of the seating portion showing another example of the fitting portion.

Fig. 26 is an exploded perspective view showing the holding portion.

Fig. 27 is an XY cross-sectional view showing the locking portion.

Fig. 28 is a YZ cross-sectional view showing the lock portion.

Fig. 29 is a cross-sectional view of the lock portion showing the unlocked state.

Fig. 30 is a cross-sectional view of the lock portion showing a locked state.

Fig. 31 is a perspective view illustrating an assembled structure of the locking portion.

Fig. 32 is a view showing the lock pin in the locked state and the unlocked state.

Fig. 33 is a diagram showing movement of the lock pin when the lock state is released.

Detailed Description

Embodiment 1>

As shown in fig. 1, the toilet seat device 10 of the present embodiment is provided in a flush toilet 11. The flush toilet 11 includes a toilet main body 12, a toilet device 15, a toilet seat device 10, and a toilet cover 19. The toilet body 12 is made of ceramic. The toilet body 12 has a toilet bowl 13 and a rim (rim) 14. The toilet bowl 13 is formed in a bowl shape for accommodating dirt. The rim portion 14 opens along the upper end of the toilet bowl 13. The toilet device 15 is fixed to the upper surface of the toilet main body 12. The toilet lid 19 is supported by the toilet device 15 so as to be openable and closable.

In the following, among the constituent members, the side where the toilet bowl 13 is provided is the front side, the side where the toilet device 15 is attached is the rear side, the lower side in a state of being provided in a toilet or the like is the lower side, the opposite side is the upper side, the flush toilet 11 is viewed from the front side, the right side is the right side, and the left side is the left side. In each figure, the positive direction side of the X-axis represents the right side, the negative direction side of the X-axis represents the left side, the positive direction side of the Y-axis represents the upper side, the negative direction side of the Y-axis represents the lower side, the positive direction side of the Z-axis represents the front side, and the negative direction side of the Z-axis represents the rear side. The Y-axis extends in a vertical direction.

The toilet device 15 includes a housing 18, a toilet seat support portion 16, and various functional components. The toilet seat support portion 16 rotatably supports the toilet seat device 10. The toilet seat support portion 16 includes a toilet seat opening/closing device 16A (see fig. 10). The toilet seat opening/closing device 16A is electrically operated and includes an electric motor, a gear, an assist spring, and a rotational position detection sensor. The toilet seat opening/closing device 16A generates torque around the virtual rotation axis a, and slowly rotates the toilet seat device 10. The toilet seat opening/closing device 16A may be a manual type, and in this case, a speed reducing mechanism may be provided. The toilet seat opening and closing device 16A may also have a hydraulic damper to allow the toilet seat device 10 to slowly rotate instead of slamming shut when the toilet seat device 10 is manually closed. As shown in fig. 4, the toilet seat support portion 16 includes a shaft hole 16B for supporting the shaft portion 33A of the toilet seat device 10. The shaft hole 16B is formed in the right side surface of the housing 18. Various functional components are accommodated in the housing 18. The various functional components are a toilet seat opening and closing device, a toilet cover opening and closing device, a local cleaning device, a deodorizing device, a drying device, and the like. The toilet lid opening/closing device may be either electric or manual, as in the toilet seat opening/closing device.

As shown in fig. 1, the toilet seat device 10 includes a seating portion 20 and a holding portion 30. The seat portion 20 is formed in a ring shape opening along the upper end of the toilet bowl 13. The seat portion 20 is closed around the entire periphery of the opening 21. The seat 20 is rotatable about a virtual rotation axis a. The virtual rotation axis a extends in the left-right direction at a position rearward of the seating portion 20. The virtual rotation axis a passes through rear end portions of left and right arm portions 32 described later.

The toilet seat device 10 is rotated about the virtual rotation axis a to be in the first state and the second state. In the first state, the seating part 20 is disposed along the upper surface of the toilet body 12. In the first state, the lower surface of the seating portion 20 is in contact with the rim portion 14. In the second state, the seating part 20 stands upward from the upper surface of the toilet body 12.

As shown in fig. 2, the holding portion 30 is provided at the rear end portion of the seating portion 20. The holding portion 30 includes a transverse portion 31, a pair of left and right arm portions 32, a locking portion 33, and an insertion piece 35. The lateral portion 31 extends in the left-right direction along the rear surface of the seating portion 20. The lateral portion 31 has a dimension in the lateral direction equal to a dimension in the lateral direction of the rear end of the seating portion 20. The lateral portion 31 is inclined along the rear surface of the seating portion 20 (see fig. 7). The lateral portion 31 is not visible from the front in the first state (see fig. 3).

As shown in fig. 5, the arm portions 32 protrude rearward from both end portions in the left-right direction of the lateral portion 31. The arm portion 32 extends obliquely upward from the lateral portion 31. The left arm 32 has a shaft hole 34. The rotation shaft of the toilet seat opening/closing device 16A is fitted into the shaft hole 34. The shaft hole 34 is square.

The lock portion 33 is provided on the right arm portion 32. As shown in fig. 3, the lock portion 33 holds the toilet seat device 10 in a mounted state with respect to the toilet seat support portion 16. In a state where the toilet seat device 10 is attached to the toilet seat support portion 16, the virtual rotation axis a passes through the lock portion 33. As shown in fig. 4, the lock portion 33 includes a shaft portion 33A and an operation portion 33B. The shaft portion 33A of the lock portion 33 is inserted into the shaft hole 16B of the toilet seat support portion 16 in a state where the toilet seat device 10 is attached to the toilet seat support portion 16.

The lock portion 33 is provided with a push latch mechanism. The lock portion 33 is switched to the lock state and the lock release state by pushing the operation portion 33B to the left side. In the locked state, the shaft portion 33A of the locking portion 33 protrudes leftward from the left side surface of the right arm portion 32. In the unlocked state, the shaft portion 33A of the lock portion 33 does not protrude from the left side surface of the right arm portion 32. As shown in fig. 4, the toilet seat device 10 can be easily removed from the toilet seat support portion 16 by setting the lock portion 33 to the unlocked state.

As shown in fig. 5, the seating portion 20 and the holding portion 30 are separate members. The material of the seat portion 20 is different from the material of the holding portion 30. The holding portion 30 is made of hard resin. The holding portion 30 is, for example, polypropylene resin or the like.

The seat portion 20 is made of foamed resin. The sitting comfort is provided because the sitting portion 20 has high elasticity. Since the seat portion 20 has high elasticity, the lower surface of the seat portion 20 may be flat without rubber feet or the like (see fig. 2). The lower surface of the seating portion 20 is in close contact with the rim portion 14 due to elasticity generated by seating of a person in the first state (see fig. 7). In the first state, the gap between the seating portion 20 and the rim portion 14 disappears, and urine dripping or the like from the gap can be prevented.

The seating portion 20 is formed of a single resin material, and thus is easily recovered. The expansion ratio of the seat portion 20 is about 20 to 40 times. The seat portion 20 is lightweight because the foaming density of the seat portion 20 is small. Thus, the torque for rotating the toilet seat device 10 is reduced, and the toilet seat opening/closing device 16A can be miniaturized, thereby reducing the cost of the flush toilet 11.

The outer surface of the seat portion 20 is textured to form irregularities. The area of the outer surface of the seating portion 20 is increased as compared to the case where texturing is not performed. The outer surface of the seating portion 20 is covered with a hydrophilic film. The hydrophilic film is formed by applying a predetermined hydrophilic paint to the outer surface of the textured seating portion 20, for example.

The seat portion 20 has a hardness lower than that of the holding portion 30. The heat flow rate of the seating portion 20 is lower than that of the holding portion 30. The seat portion 20 is less likely to take the temperature of the buttocks of the occupant. The thermal flow rate of the seating portion 20 may be 0.4W/m ² or less.

The seat portion 20 and the holding portion 30 are detachable. As shown in fig. 6, the seating portion 20 and the holding portion 30 include an insertion piece 35 and a slit 22 as a detachable structure. The insertion piece 35 is provided in the holding portion 30. The insertion pieces 35 are provided at both left and right end portions of the lateral portion 31. The insertion piece 35 protrudes forward from the lateral portion 31. The insert 35 is shaped as a christmas tree when viewed from above. The dimension of each insert piece 35 in the left-right direction increases from the front end toward the rear side as a whole.

Each of the insertion pieces 35 has a plurality of protruding portions 36 on both left and right sides. The trailing edge 37 of each projection 36 extends in the left-right direction. The leading edge 38 of each projection 36 is inclined obliquely with respect to the Z-axis. The width dimension of each projection 36 in the lateral direction increases from the front side toward the rear side.

As shown in fig. 7, the insertion piece 35 is formed in a plate shape. A rib 39 is provided on the upper surface of the insert 35. The rib 39 continues from the front end of the insert piece 35 to the transverse portion 31. The dimension of the rib 39 in the up-down direction gradually increases from the front end toward the rear end. The rib 39 extends in the front-rear direction at the center of the insertion piece 35 (see fig. 6).

A slit 22 is formed in the seating portion 20. A pair of slits 22 are provided along the left and right sides (see fig. 8). The slit 22 opens at the rear surface of the seating part 20. The slit 22 extends in a laterally elongated manner when viewed from the rear. The insertion piece 35 is inserted into the slit 22 from the rear. Each slit 22 has a longitudinal slit 22A. The vertical slit 22A extends vertically and horizontally as viewed from the rear. The longitudinal slit 22A is located at the center of the slit 22 in the right-left direction. The rib 39 is inserted into the longitudinal slit 22A from the rear.

If the insertion piece 35 is inserted into the slit 22, the protruding portion 36 of the insertion piece 35 is caught in the inside of the seating portion 20. Thereby, the seating portion 20 and the holding portion 30 are held in an integrated state. When the holding portion 30 is detached from the seating portion 20, the insertion piece 35 can be pulled out of the slit 22 by grasping the lateral portion 31 of the holding portion 30 and pulling it rearward.

According to the embodiment configured as described above, the following effects are achieved. The toilet seat device 10 has a seating portion 20 and a holding portion 30. The holding portion 30 holds the seating portion 20 on the upper surface of the toilet body 12. The material of the seat portion 20 is different from the material of the holding portion 30. With this configuration, the range of selection of the material used for the toilet seat device 10S can be widened.

The holding portion 30 is a hinge portion that makes the seating portion 20 be disposed along the upper surface of the toilet body 12 and be raised upward from the upper surface of the toilet body 12. According to this configuration, the seat portion 20 is made of a material comfortable to sit on, and the holding portion 30 is made of a material having strength to withstand the rotation of the toilet seat device 10, so that sitting on can be made comfortable without using a cushion, a heater, or the like.

The heat flow rate of the seating portion 20 is lower than that of the holding portion 30. According to this structure, the sitting portion 20 does not easily take heat away from the buttocks, and thus can eliminate cold discomfort without using a heater, and can make sitting feel comfortable.

The seat portion 20 has a hardness lower than that of the holding portion 30. According to this structure, the seat portion 20 is soft, and thus the sitting feeling can be made comfortable without using the seat cushion.

The seat portion 20 is formed in a ring shape that opens along the upper end of the toilet bowl 13 of the toilet body 12. The lower surface of the seating portion 20 is flat. According to this structure, the gap between the rim portion 14 and the seat portion 20 can be reduced as compared with a case where rubber feet or the like are provided on the lower surface of the seat portion 20, and urine can be made less likely to enter between the rim portion 14 and the seat portion 20. The lower surface d of the seating portion 20 is free from irregularities such as rubber feet, and therefore is easy to clean. Therefore, the lower surface of the seating part 20 can be easily cleaned. The lower surface of the seating portion 20 may be uneven as a whole. Only the area of at least the front side of the lower surface of the seating part 20 may be flattened.

The seating portion 20 has elasticity, and is soft, so that the gap between the rim portion 14 and the seating portion 20 can be made smaller. Since the toilet body 12 is made of ceramic, the upper surface opening of the toilet bowl 13 is hardly flat. If the seating portion is made of a hard material and has no rubber foot or the like as in the prior art, there is a case where looseness occurs between the seating portion and the rim portion 14. The seat portion 20 is made of a soft material, so that the occurrence of loosening can be prevented even if there is no rubber foot. Since the soft seating portion 20 is slightly fitted into the opening portion of the toilet bowl 13 during seating, lateral displacement of the toilet seat device 10, which occurs when the seating posture is changed, can be suppressed.

The seat portion 20 and the holding portion 30 are detachable. According to this configuration, the seating portion 20 can be easily replaced by removing the seating portion 20 from the holding portion 30 and attaching another seating portion 20 to the holding portion 30. Therefore, the replacement can be performed for fine reasons such as damage or dirt.

The holding portion 30 is detachable from the toilet seat support portion 16. With this structure, the replacement holding portion 30 and the seating portion 20 can be held in an integrated state. The seat portion 20 can be used separately in accordance with various body shapes such as a child having a small opening 21 and a shielding shape on the front surface, an ostomy person having a wide front of the toilet seat opening, an elderly person sitting comfortably by height adjustment, and a pet for which a cat can be used. The strength or the size of the holding portion 30 can be a strength or a size suitable for the size, the weight, or the like of the seating portion 20. Since the holding portion 30 and the seating portion 20 can be replaced in a state of being held integrally, the holding portion 30 and the seating portion 20 can be easily replaced in a kit with a member having an optimal shape or softness according to the user. The holding portion 30 and the seating portion 20 may be removed, and the holding portion 30 and the seating portion 20 may be completely washed in a bathroom or the like. The seating portion 20 can be detached from the holding portion 30, and only the seating portion 20 can be cleaned.

Fig. 12 shows a state in which the child seat 20 is attached to the toilet body 12. The opening 21 of the seating part 20 for children is smaller than the opening 21 of the seating part 20 for adults. This prevents the child seated on the seating part 20 from falling into the opening of the toilet body 12. A small water collecting portion 25 is provided at the front end portion of the child seat portion 20. This can prevent urine from splashing.

Fig. 13 shows a state in which the sitting portion 20 for a person whose isosceles legs are inconvenient or a person whose sitting feeling is unstable is attached to the toilet main body 12. The sitting portion 20 for the elderly is a high-rise toilet. The seat 20 for the elderly person is larger in size in the up-down direction than a normal toilet seat, and the seating surface of the seat 20 for the elderly person is disposed at a position higher than the seating surface of the normal toilet seat. Thus, the user can easily perform an operation of sitting on the seating surface or an operation of standing up from the seating surface.

Fig. 14 to 16 show a state in which the seating part 20 for an ostomate is attached to the toilet body 12. The seating part 20 for an ostomate is shaped with a front side portion of a general toilet seat removed. By using the seating part 20 for an ostomate, the front area of the opening of the toilet body 12 is widened compared to the case of using a normal toilet seat. The seating surface of the seating part 20 for an ostomate is wider in the rear direction than the seating surface of the rear part of a normal toilet seat. The ostomate can sit about 50mm rearward by using the seating part 20 for the ostomate, as compared with the case of sitting on a normal toilet seat.

When an ostomate sits on a normal toilet seat, a space for disposing of excrement cannot be secured sufficiently, and therefore, excrement disposal must be performed in a half rise from one's seat posture in which the waist is lifted from the toilet seat (see fig. 17). In this case, there is a problem that a burden is applied to the waist and legs of the ostomate, and when excrement is treated from a high position, the excrement rebounds, and clothes or a toilet seat are easily stained. By using the sitting portion 20 for an ostomate, the ostomate can treat excrement with ease and posture sitting on the sitting portion 20 without soiling clothes or toilet seat (see fig. 18).

The child sitting portion 20, the old sitting portion 20, and the ostomy person sitting portion 20 are attached and detached without performing a turning operation. The toilet lid 19 is used in an opened state or is detached for use.

The seat portion 20 is made of foamed resin. With this configuration, the seating portion 20 can be a light-weight seating portion having a comfortable sitting feel. Since the seat portion 20 is of a single-piece structure of resin material, the seam of the easily soiled portion around the opening of the toilet bowl 13 can be eliminated, and therefore, there is a problem that cleaning can be easily performed even when dirt is attached.

The outer surface of the seating portion 20 is covered with a hydrophilic film. According to this structure, the seat portion 20 is not likely to take away the heat of the buttocks due to the low heat flow rate material, and is warm due to weak heat generated by absorbing moisture such as steam emitted from the body of the sitting person by the hygroscopic heat generation effect, and the sitting feeling can be made comfortable without a heater or the like. The outer surface of the seating portion 20 may be textured to increase the surface area and further enhance the hygroscopic and exothermic effects.

Embodiment 2>

A toilet seat device 50 according to embodiment 2 embodying the present disclosure will be described with reference to fig. 9. The mounting and dismounting structure of the seating part 20 and the holding part 30 of the toilet seat device 50 is different from that of embodiment 1. The same components as those of embodiment 1 are denoted by the same reference numerals, and duplicate descriptions are omitted.

The toilet seat device 50 has a seat portion 20 and a holding portion 30, and the seat portion 20 and the holding portion 30 are detachable, as in embodiment 1. The attaching/detaching structure of the seat portion 20 and the holding portion 30 includes a pin 51 and pin holes 52, 53. For example, a self-tapping screw may be used for the pin 51. The pin holes 52 are provided in such a manner that cylindrical hard resin members are embedded in both left and right side surfaces of the rear end portion of the seating portion 20. The pin holes 53 are provided on both left and right sides of the holding portion 30. By overlapping the pin hole 52 of the seating part 20 and the pin hole 53 of the holding part 30 in the left-right direction and screwing the pin 51 into the pin holes 52, 53, the seating part 20 and the holding part 30 can be held as one body. The holding portion 30 can be removed from the seating portion 20 by pulling out the pin 51 from the pin holes 52, 53.

As described above, in the present embodiment, the material of the seating part 20 is different from the material of the holding part 30 as in embodiment 1, and therefore, the range of selection of the material used for the toilet seat device 50 can be widened. The seat portion 20 is made of a material comfortable to sit, and the holding portion 30 is made of a material having strength to withstand the rotation of the toilet seat device 50, so that the sitting comfort can be achieved without using a cushion, a heater, or the like.

Embodiment 3>

Next, a toilet seat device 60 according to embodiment 3 embodying the present disclosure will be described with reference to fig. 10 and 11. The mounting and dismounting structure of the seating part 20 and the holding part 30 of the toilet seat device 60 is different from that of embodiment 1. The same components as those of embodiment 1 are denoted by the same reference numerals, and duplicate descriptions are omitted.

The toilet seat device 60 has the seat portion 20 and the holding portion 30, and the seat portion 20 and the holding portion 30 are detachable as in embodiment 1. The toilet seat support portion 16 that supports the toilet seat device 60 has a concave portion 61 that is concave toward the rear side.

As shown in fig. 11, the holding portion 30 is formed in a box shape. The holding portion 30 has left and right walls 30A, a rear wall 30B, and a lower wall 30C. The holding portion 30 is fitted into the recess 61 of the toilet seat support portion 16.

The seating portion 20 has a convex portion 62. The protruding portion 62 is provided at the center portion of the seating portion 20 in the left-right direction. The convex portion 62 protrudes rearward on the rear surface of the seating portion 20. The convex portion 62 is formed in a rectangular parallelepiped shape conforming to the shape of the holding portion 30. The convex portion 62 is fitted into the holding portion 30.

The holding portion 30 and the seating portion 20 have shaft holes 63 and 64. In a state where the protruding portion 62 of the seat portion 20 is fitted to the holding portion 30, the shaft hole 64 of the seat portion 20 and the shaft hole 63 of the holding portion 30 overlap in the left-right direction. The rotation shafts of the toilet seat opening/closing device 16A are fitted into the shaft holes 63, 64 in a state overlapping in the left-right direction.

The attaching/detaching structure of the seat portion 20 and the holding portion 30 includes a rod member 67 and insertion holes 65 and 66. The length dimension of the rod member 67 is larger than the dimension of the protrusion 62 in the left-right direction. The insertion holes 65 are provided in the left and right walls 30A of the holding portion 30. The insertion hole 65 is located on the front side of the shaft hole 63. The insertion hole 66 is provided in the seating portion 20. The insertion hole 66 penetrates the convex portion 62 in the left-right direction. The insertion hole 66 is provided on the front side of the shaft hole 64. In a state where the protruding portion 62 is fitted to the holding portion 30, the insertion hole 66 of the seating portion 20 and the insertion hole 65 of the holding portion 30 overlap in the left-right direction.

By inserting the rod member 67 into the insertion holes 65, 66, the seat portion 20 and the holding portion 30 can be integrally held. The holding portion 30 can be detached from the seating portion 20 by pulling out the rod member 67 from the insertion holes 65, 66.

The seat portion 20 and the holding portion 30 are integrated by the rod member 67, and the holding portion 30 is fitted into the recess 61 of the toilet seat support portion 16. The rotation shaft of the toilet seat opening/closing device 16A is fitted into the shaft holes 63, 64. Thus, the toilet seat device 60 is held in the mounted state with respect to the toilet seat support portion 16.

As described above, in the present embodiment, the material of the seating part 20 is different from the material of the holding part 30 as in embodiment 1, and therefore, the range of selection of the material used for the toilet seat device 60 can be widened. The seat portion 20 is made of a material comfortable to sit, and the holding portion 30 is made of a material having strength to withstand the rotation of the toilet seat device 60, so that the sitting comfort can be achieved without using a cushion, a heater, or the like.

Embodiment 4 >

Next, a toilet seat device 100 according to embodiment 4 embodying the present disclosure will be described with reference to fig. 19 to 33. The same components as those of embodiment 1 are denoted by the same reference numerals, and duplicate descriptions are omitted. The toilet seat device 100 is provided in the flush toilet 11 (see fig. 1) in the same manner as in embodiment 1. The flush toilet 11 includes a toilet main body 12, a toilet device 15, a toilet seat device 100, and a toilet cover 19, as in embodiment 1. The toilet device 15 includes a housing 18, a toilet seat support portion 16, and various functional components, as in embodiment 1.

The toilet device 15 includes a seating detection sensor 101. The seating detection sensor 101 detects seating of the user on the seating part 20. As shown in fig. 26 and 27, the seating detection sensor 101 is configured to be capable of performing seating detection by being lowered by receiving a seating load by a plunger 127 provided to an arm portion 32 of the holding portion 30. The seating detection sensor 101 is provided on both the left and right sides of the toilet device 15 in correspondence with the left and right arm portions 32. The illustration of the seating detection sensor 101 on the left side is omitted. The left seating detection sensor 101 is configured to be capable of performing seating detection by being lowered by receiving a seating load by a member, not shown, extending from the left arm portion 32 toward the housing 18. The seating detection sensor 101 is a micro switch type.

As shown in fig. 20 and 21, the lower surface of the seating part 20 has an inclined part 102. The inclined portion 102 is formed in a rear region from a position forward of the front end of the insertion piece 35 to a rear. In the first state, the front portion of the lower surface of the seating portion 20 is in close contact with the rim portion 14, and the inclined portion 102 is away from the rim portion 14. The inclined portion 102 gradually rises from the front side toward the rear side in the first state. In the first state, a gap 103 is formed between the inclined portion 102 and the rim portion 14 of the lower surface of the seating portion 20. The dimension of the gap 103 in the up-down direction increases toward the rear in the first state. By providing the inclined portion 102 at the rear portion of the lower surface of the seating portion 20, even if the load generated by seating is biased to act on the front portion of the seating portion 20, the rear portion of the seating portion 20 is easily elastically deformed downward, and thus the micro switch can be easily operated. Thus, even if the seating portion 20 is easily elastically deformed, seating detection can be reliably performed.

When the seating detection sensor is provided only on one of the left and right sides of the rear end portion of the seating portion, the seating portion 20 itself is elastically deformed by the seating of the user, and the load due to the seating may not be transmitted to the seating detection sensor 101. For example, a load caused by sitting by the body shape, sitting posture, or the like of the user may be biased to one side of the left side region or the right side region of the seat portion 20 or biased to the front portion of the seat portion 20. In this case, the load due to the seating is difficult to be transmitted to the seating detection sensor 101 due to the elastic deformation of the seating portion 20 itself. However, by providing the seating detection sensors 101 on the left and right sides of the seating portion 20, even if the load due to seating is biased to one side in the left or right side region of the seating portion 20, stable seating detection can be performed by any operation of the micro-switch.

The toilet seat device 100 has a seat portion 20 and a holding portion 30 as in embodiment 1, and the seat portion 20 and the holding portion 30 are detachable (see fig. 5). As shown in fig. 22 and 23, the seating portion 20 and the holding portion 30 include a first attaching/detaching portion 104 and a second attaching/detaching portion 105 that are detachable. The first attaching/detaching portion 104 includes an insertion portion 106 provided on the seat portion 20 side and an arm portion 32 provided on the holding portion 30 side. The second attaching/detaching portion 105 includes an insertion piece 35 provided on the holding portion 30 side and a slit 22 provided on the seating portion 20 side. The attaching/detaching direction 104D of the first attaching/detaching portion 104 is different from the attaching/detaching direction 105D of the second attaching/detaching portion 105. The attaching/detaching direction 105D of the second attaching/detaching portion 105 is an angle approximately parallel to the Z axis, compared to the attaching/detaching direction 104D of the first attaching/detaching portion 104.

Since the attaching/detaching direction 104D of the first attaching/detaching portion 104 and the attaching/detaching direction 105D of the second attaching/detaching portion 105 are different, the seating portion 20 and the holding portion 30 are firmly coupled. Thus, the coupling portion between the seating portion 20 and the holding portion 30 can support the load in the lateral direction due to the movement from the wheelchair to the toilet seat, the weight movement of the seated user, the opening and closing of the seating portion 20, and the like.

The insertion portions 106 are provided at both ends in the left-right direction of the rear end portion of the seating portion 20 (see fig. 19). The insertion portion 106 is formed integrally with the seating portion 20 by the same material as the seating portion 20. The left and right insertion portions 106 protrude rearward from the seating portion 20, respectively. The insertion portion 106 is inserted into the arm portion 32 while being elastically deformed. The insertion portion 106 may or may not be elastically deformed in a state of being accommodated in the arm portion 32.

The insertion piece 35 is formed in a christmas tree shape in a plan view, and has a large number of protruding portions 36 on both left and right sides (see fig. 26) as in embodiment 1. In each of the insertion pieces 35, the number of the protruding portions 36 on the inner side in the left-right direction is smaller than the number of the protruding portions 36 on the outer side in the left-right direction.

As shown in fig. 24, the slit 22 is formed between the upper surface portion 107 and the lower surface portion 108 of the seating portion 20. The upper surface portion 107 and the lower surface portion 108 are formed to divide the seating portion 20 in two in the up-down direction. The insertion portion 106 is provided on the upper surface portion 107. The seating portion 20 is provided with an insertion portion 109 along an edge of the slit 22 (see fig. 20). The fitting portion 109 has a convex portion 111 and a concave portion 112 fitted in the up-down direction. The convex portion 111 and the concave portion 112 are provided on one of the lower surface of the upper surface portion 107 and the upper surface of the lower surface portion 108. Fig. 24 shows a case where the convex portion 111 is formed on the upper surface portion 107 and the concave portion 112 is formed on the lower surface portion 108. As shown in fig. 25, the convex portion 111 and the concave portion 112 may be formed in the upper surface portion 107, and the convex portion 111 may be formed in the lower surface portion 108.

The upper surface 107 and the lower surface 108 are bonded by an adhesive, not shown, with the fitting portion 109 fitted. As shown in fig. 24 and 25, the range AR in which the adhesive is applied is in a range other than the portion constituting the slit 22 of the lower surface of the upper surface portion 107 and the upper surface of the lower surface portion 108 and the surface of the fitting portion 109 which borders the slit 22. This prevents the insertion piece 35 from being smoothly inserted due to the adhesive overflowing into the slit 22, allows the insertion piece 35 to be inserted while pushing the side surface of the slit 22 away by the elasticity of the seating portion 20, and prevents the insertion piece 35 from being inserted and the joint from being peeled off, so that a strong bonding force can be obtained due to the above-described structure.

As shown in fig. 26, the left and right arm portions 32 are each composed of a base portion 113 and a cover portion 114. The left and right base portions 113 are integrally formed with the lateral portion 31. The left and right base portions 113 protrude rearward from both end portions of the lateral portion 31 in the left-right direction. Each base 113 includes a bottom wall 115 and left and right side walls 116. The base 113 is opened upward.

The left and right base portions 113 have first and second engaging portions 117 and 118, respectively. The first engaging portion 117 and the second engaging portion 118 are provided on one side and the other side of the left and right side walls 116. The first hooking portion 117 is an opening formed on the side wall 116. The second hooking portion 118 is a cutout formed at the front end portion of the side wall 116.

The cover 114 is fitted to the base 113. The cover 114 has a top wall 119 and an outer wall 121. The top wall 119 is opposite the bottom wall 115 of the base 113. The outer wall 121 covers the left-right direction outer side of the side wall 116 of the base 113.

The left and right cover portions 114 each have a first protruding portion 122 and a second protruding portion 123. The first protruding portion 122 is engaged with the first engaging portion 117. The second protruding portion 123 is inserted into the second hooking portion 118. Thereby, the cover 114 is prevented from tilting from the base 113.

As shown in fig. 26, the lock portion 33 includes a plunger 127, a spring 128, a bracket 129, a sleeve 131, a lock pin 132, a lock piece 133, and a cam 134.

As shown in fig. 27, the lock portion 33 is attached to the right arm portion 32. The bracket 129 of the lock portion 33 is attached to the attachment hole 124 of the right arm portion 32. Mounting holes 124 are provided in the left and right side walls 116 of the base 113.

As shown in fig. 27, the arm 32 on the right side has a protrusion 125 fitted into the bracket 129 of the lock portion 33. The protrusion 125 is provided on the bottom wall 115. As shown in fig. 28, the arm 32 on the right side has a boss 126 into which the cam 134 of the lock portion 33 is inserted. A boss 126 is provided on the side wall 116.

As shown in fig. 27, a plurality of drain holes 143 are formed in the lock portion 33. The drain hole 143 penetrates the spring housing 138, the shaft 33A, and the bracket 129 in the inward-outward direction. The drain hole 143 is opened downward in the first state. The cleaning water, the detergent, the degerming agent, and the like flowing into the locking portion 33 are discharged to the outside of the locking portion 33 through the drain hole 143. This can prevent cleaning water, detergent, degerming agent, etc. from remaining in the locking portion 33, and can prevent corrosion of the metal member or deterioration of the resin member.

As shown in fig. 27, the plunger 127 includes a shaft 33A and an operation portion 33B. The outer peripheral surface of the shaft portion 33A is formed in a cylindrical shape (see fig. 26). The operation portion 33B is provided at the right end of the shaft portion 33A. The right surface of the operation unit 33B is an operation surface 135 (see fig. 27). The operation surface 135 is pressed to the left when the lock portion 33 is operated to the locked state and the unlocked state. The operating surface 135 is inclined along the outer surface of the housing 18.

As shown in fig. 27, the shaft portion 33A is supported by the shaft hole 16B of the toilet seat support portion 16 in the locked state. The shaft hole 16B is formed in the shaft hole member 136. The shaft hole member 136 is fixed to the housing 18 so as to be supported by the spring 157, and is supported by the load of sitting and is movable up and down. The shaft hole 16B is provided with a protrusion 137 (see fig. 26) for preventing sliding noise when the shaft portion 33A rotates. The protrusions 137 are provided in two, respectively, in line contact with the shaft portion 33A.

As shown in fig. 29 and 30, the plunger 127 has a spring accommodating portion 138 accommodating the spring 128. A spring support portion 139 is provided at a position corresponding to the spring housing portion 138 in the operation portion 33B. The spring 128 is a compression coil spring. The spring housing portion 138 is formed recessed inward from the outer peripheral surface of the shaft portion 33A (see fig. 31). The spring housing portion 138 is formed in a U-shape in a cross section orthogonal to the rotation axis a.

As shown in fig. 28, a sleeve 131 is fixed to the plunger 127. The sleeve 131 penetrates the shaft 33A in the radial direction, and is fixed to the shaft 33A. A locking pin 132 passes through the sleeve 131. The lock pin 132 is rotatable relative to the sleeve 131. One end of the locking pin 132 is pressed into a hole of the locking piece 133.

A locking tab 133 is secured to one end of the locking pin 132. As shown in fig. 32 and 33, the lock piece 133 moves laterally in the cam groove 144 in response to the lateral movement of the plunger 127. The lock piece 133 rotates around the lock pin 132, and changes its posture in the cam groove 144. The lock piece 133 has a pair of stopper portions 145 and a pair of slide portions 146.

As shown in fig. 27, the bracket 129 is fixed to the arm portion 32. A recess 141 into which the projection 125 of the arm portion 32 is fitted is provided on the outer surface of the bracket 129. The bracket 129 has a spring support 139. The spring support 139 is disposed in the spring housing 138 of the plunger 127.

As shown in fig. 31, the bracket 129 is formed in a cylindrical shape along the outer peripheral surface of the plunger 127. A pair of outer surface recesses 156 is formed in the outer peripheral surface of the bracket 129. The holding portion 147 of the cam 134 is fitted into the outer surface recess 156. The bracket 129 has two guide holes 142 extending in the left-right direction. A sleeve 131 and a lock pin 132 pass through the guide hole 142. The sleeve 131 and the lock pin 132 move in the left-right direction along the guide hole 142. Since the sleeve 131 and the lock pin 132 pass through the guide hole 142, the radial position of the plunger 127 is fixed with respect to the bracket 129.

As shown in fig. 31, the cam 134 has a pair of holding portions 147. The pair of holding portions 147 sandwich and hold the bracket 129. The cam 134 is provided with a boss hole 148 (see fig. 28) into which the boss 126 of the cover 114 is inserted. Cam 134 is positioned on the right arm 32 by boss 126. The cam 134 is fixed to the right arm 32 by two screws S (see fig. 26).

As shown in fig. 32 and 33, the cam 134 has a cam groove 144 that guides the lock piece 133. The cam groove 144 has a first groove portion 149, a second groove portion 151, and a transition groove portion 152. The first groove portion 149 is provided on the right end side of the cam groove 144. The second groove 151 is provided on the left end side of the cam groove 144. The transition groove 152 is provided between the first groove 149 and the second groove 151.

A pair of cam surfaces 153 opposed to each other in the first groove portion 149 and the second groove portion 151 are parallel to each other. The second groove 151 has a larger groove width than the first groove 149. The posture of the lock piece 133 in the state of being disposed in the first groove portion 149 is referred to as a first posture. The posture of the lock piece 133 in the state of being disposed in the second groove 151 is referred to as a second posture. In the first posture, the sliding portion 146 of the lock piece 133 is along the pair of cam surfaces 153. In the second posture, the stopper 145 of the lock piece 133 is away from the pair of cam surfaces 153.

In the transition groove 152, the lock piece 133 changes from the first posture to the second posture or from the second posture to the first posture. The transition groove portion 152 has a locking step portion 154. As shown in fig. 32, the lock piece 133 is caught by the lock step 154. Thereby, the lock portion 33 is held in the locked state.

The transition groove 152 has inclined surfaces 152A and 152B on one and the other of the pair of cam surfaces 153. The inclined surfaces 152A, 152B are inclined at different gradients. The inclined surface 152A formed in the locking step 154 is inclined at an angle close to a right angle with respect to the X axis, as compared to the inclined surface 152B of the cam surface 153 formed on the opposite side. As shown in fig. 33, the inclined surfaces 152A, 152B guide the rotation of the lock piece 133.

In the locked state, as shown in fig. 32, the stopper 145 of the lock piece 133 is caught by the locking step 154. The lock piece 133 is moved toward the second groove 151 by pushing the locked operation portion 33B to the left as shown in fig. 33. Thereby, the engagement between the stopper 145 and the locking stepped portion 154 is released. When the user removes his or her hand from the operation portion 33B, the operation portion 33B is pushed rightward by the elastic force of the spring 128, and the lock piece 133 reaches the transition groove portion 152 from the second groove portion 151. A sliding portion 146 of the lock piece 133 contacts the inclined surface 152A, and the lock piece 133 rotates along the inclined surface 152B. The lock piece 133 is in the first posture and enters the first groove portion 149.

According to the embodiment configured as described above, the following effects are achieved. In a state where the seat portion 20 is held on the upper surface of the toilet body 12, a gap 103 is formed between the rear portion of the lower surface of the seat portion 20 and the upper surface of the toilet body 12. According to this configuration, even if the front portion of the seating portion 20 is elastically deformed by seating, the rear portion of the seating portion 20 is easily displaced downward, and thus seating detection can be performed even with the seating portion 20 that is easily elastically deformed.

The seat portion 20 and the holding portion 30 include a first attaching/detaching portion 104 and a second attaching/detaching portion 105 that are detachable. The attaching/detaching direction 104D of the first attaching/detaching portion 104 is different from the attaching/detaching direction 105D of the second attaching/detaching portion 105. According to this structure, the first attaching/detaching portion 104 and the second attaching/detaching portion 105 can be made difficult to come out, so that the seating portion 20 and the holding portion 30 can be firmly fixed.

The first attaching/detaching portion 104 includes an insertion portion 106 provided on the seat portion 20 side and an arm portion 32 provided on the holding portion 30 side. The insertion portion 106 is inserted into the arm portion 32 while being elastically deformed. According to this structure, the insertion portion 106 is made less likely to be pulled out from the arm portion 32 by the elastic force of the insertion portion.

< Other embodiments >

The present disclosure is not limited to the embodiments described above and described with reference to the drawings, and, for example, the following embodiments are also included in the technical scope of the present disclosure.

(1) In the above embodiment, the seating part 20 is formed of a single resin material. The seating part 20 may be formed of a plurality of different materials. For example, the seat portion may be formed by laminating a plurality of materials, or may be formed by a surface layer, an intermediate layer, and a base layer in this order from the upper side in the first state. In this case, the surface layer may be a thin layer printed with a coating having scratch resistance or stain resistance, or may be a layer having various designs. The intermediate layer may be made of a foaming resin. The base layer may be a material having high strength and load resistance and impact resistance.

(2) In the above embodiment, the seating part 20 is formed of a material that is not likely to take the temperature of the buttocks of the seated person. The material of the seating portion is not limited thereto, and may be changed as appropriate according to seasons. For example, the seat-based material may also be a cooling material that feels comfortable during the hot season.

(3) In the above embodiment, the lock portion 33 is provided with the push latch mechanism. The present invention is not limited to this, and other known mechanisms that can perform one-touch operation may be used as the lock portion.

(4) In the above embodiment, the holding portion 30 directly holds the seating portion 20. The holding portion is not limited to this, and may hold the seating portion indirectly. For example, the holding portion may hold the seating portion with a member different from the seating portion interposed between the holding portion and the seating portion.

(5) In the above-described embodiment, the holding portion 30 of the toilet seat apparatus 10, 50, 60, 100 is a hinge portion that brings the seating portion 20 into a state of being disposed along the upper surface of the toilet body 12 and a state of rising upward from the upper surface of the toilet body 12. The holding portion is not limited to this, and may not have a function of rotating the seating portion. The holding portion may have a function of holding the seating portion on the upper surface of the toilet body. The holding portion may be any member that prevents the seat from being displaced from the upper surface of the toilet body or prevents the seat from falling from the upper surface of the toilet body.

(6) In the above embodiment, the seating detection sensor 101 is a micro-switch type. The seating detection sensor is not limited to this, and may be an infrared sensor type, a radio wave sensor type, or the like.

(7) In the above embodiment, the spring 128 is disposed inside the plunger 127. The spring is not limited to this, and may be disposed outside the plunger.

(8) In the above embodiment, the shape of the insert piece 35 is exemplified. The shape of the insert piece is not limited thereto, and may be changed.

(9) In the above embodiment, the seating detection sensors 101 are provided on the left and right sides. The seat detection sensor is not limited to this, and may be provided on only one side as long as the rigidity of the seat portion or the holding portion can be ensured.

Description of the reference numerals

10. 50, 60, 100 … Toilet seat devices; 12 … toilet body; 13 … toilet bowl; 16 … toilet seat support; 20 … seats; 30 … holding portions; 32 … arm portions; 103 … gaps; 104 … a first loading and unloading section; 104D … a loading and unloading direction of the first loading and unloading section; 105 … second attachment/detachment section; 105D … the loading and unloading direction of the second loading and unloading section; 106 … insert

Claims

1. A toilet seat device, comprising:

seating portion

A holding portion for holding the sitting portion on the upper surface of the toilet body, wherein,

The seat portion is made of a material different from that of the holding portion.

2. The toilet seat device according to claim 1, wherein,

The holding portion is a hinge portion that makes the sitting portion be disposed along the upper surface of the toilet body and be raised upward from the upper surface of the toilet body.

3. The toilet seat device according to claim 1, wherein,

The heat flow rate of the seating portion is lower than that of the holding portion.

4. The toilet seat device according to claim 1, wherein,

The seat portion has a hardness lower than that of the holding portion.

5. The toilet seat device according to claim 1, wherein,

The seating part is formed in a ring shape opened along an upper end of a toilet bowl of the toilet body,

The lower surface of the seating part is substantially flat.

6. The toilet seat device according to claim 1, wherein,

The seating part and the holding part are detachable.

7. The toilet seat device according to claim 1, wherein,

The holding portion is detachable from a toilet seat support portion for supporting the toilet seat device.

8. The toilet seat device according to claim 1, wherein,

The seat part is made of foaming resin.

9. The toilet seat device according to claim 1, wherein,

The outer surface of the seating portion is covered with a hydrophilic film.

10. The toilet seat device according to claim 1, wherein,

In a state where the seating part is held on the upper surface of the toilet body, a gap is formed between the rear part of the lower surface of the seating part and the upper surface of the toilet body.

11. The toilet seat device according to claim 6, wherein,

The seating part and the holding part are provided with a first loading and unloading part and a second loading and unloading part which can be assembled and disassembled freely,

The loading and unloading direction of the first loading and unloading part is different from the loading and unloading direction of the second loading and unloading part.

12. The toilet seat device according to claim 6, wherein,

The seating part and the holding part are provided with a first detachable part which can be detached freely,

The first attaching/detaching portion has an insertion portion provided on the seating portion side and an arm portion provided on the holding portion side, and the insertion portion is inserted into the arm portion while being elastically deformed.