JP2021122368A - toilet seat - Google Patents

Abstract

To provide a toilet seat excellent in sitting comfortableness while ensuring functionality of the toilet seat.SOLUTION: There is provided a toilet seat equipped with a cushion member (cushion part) 40 constituting at least part of a setting surface 60. The cushion member 40 has a thin wall part 41 in a front end region RF. The thickness of a predetermined part R1 constituting the sitting surface 60 in the cushion member 40 is larger than the thickness of the thin wall part 41. By making only part of the cushion member 40 thick, sitting comfortableness can be secured without hindering various functions such as an opening/closing operation function of the toilet seat and a toilet lid.SELECTED DRAWING: Figure 7

Description

This disclosure relates to a toilet seat.

Patent Document 1 discloses a toilet seat including a toilet seat main body and a toilet seat cover mounted on the seat surface of the toilet seat main body. The toilet seat cover is provided with a cushion layer between the surface layer and the intake / exhaust layer and the adhesive layer. The cushion layer is made of a low resilience material, for example 5 to 20 millimeters.

JP-A-2007-229388

In the configuration provided with the cushion layer disclosed in Patent Document 1, if the thickness of the cushion layer is increased, the toilet seat cover becomes large and may interfere with various functions such as the opening / closing operation function of the toilet seat and the toilet lid. If the thickness of the cushion layer is reduced so as not to interfere with various functions, the toilet seat cannot be comfortably seated.

The present disclosure has been completed based on the above circumstances, and an object of the present disclosure is to provide a comfortable toilet seat while ensuring the functionality of the toilet seat.

The toilet seat of the present disclosure is a toilet seat provided with a cushion portion forming at least a part of a seating surface, and the cushion portion has a thin-walled portion in a front end region, and the cushion portion constitutes the seating surface. The thickness of the predetermined portion is larger than the thickness of the thin-walled portion.

It is a side view which shows the toilet bowl device which concerns on Embodiment 1. FIG. It is a side view which shows the state which the toilet seat and the toilet lid are closed by breaking the toilet lid. It is a side view which shows the state which the toilet seat and the toilet lid are open by breaking the toilet lid. It is an exploded perspective view which shows a cushion member and a toilet seat. It is a top view which shows the state which the cushion member is attached to the toilet seat. FIG. 5 is a sectional view taken along line VI-VI of FIG. FIG. 5 is a sectional view taken along line VII-VII of FIG. FIG. 5 is a cross-sectional view taken along the line VIII-VIII of FIG. FIG. 5 is a cross-sectional view taken along the line IX-IX of FIG. It is an enlarged sectional view of a cushion member. It is sectional drawing which shows the state which the cushion member was removed from the toilet seat, and the toilet lid was closed. It is sectional drawing which shows the state which the cushion member is attached to the toilet seat, and the toilet lid is opened. It is sectional drawing which shows the state which the cushion member is attached to the toilet seat, and the toilet lid is closed. It is sectional drawing which shows the state which the cushion member which concerns on Embodiment 2 is attached to the toilet seat. It is a perspective view which shows the cushion part and the toilet seat main body which concerns on Embodiment 3. It is an enlarged sectional view of the cushion part which concerns on Embodiment 4. FIG.

<Embodiment 1>
As shown in FIG. 1, the toilet bowl device 10 includes a toilet bowl main body 11 and a toilet seat device 20. Hereinafter, in each component, the front-rear direction, the left-right direction, and the up-down direction shall indicate the front-back direction, the left-right direction, and the up-down direction, respectively, when viewed from the seated person in the state of being seated on the toilet device 10.

The toilet bowl body 11 has a toilet bowl portion. A rim 12 is formed at the upper end of the toilet bowl portion. A toilet seat device 20 is installed above the toilet body 11.

As shown in FIGS. 2 and 3, the toilet seat device 20 includes a device main body 21, a toilet seat 30, and a toilet lid 50. The device main body 21 is arranged at the rear part of the toilet bowl main body 11 and is fixed to the toilet bowl main body 11. The device main body 21 has a toilet seat shaft portion 22 that rotatably supports the toilet seat 30, and a toilet lid shaft portion 23 that rotatably supports the toilet lid 50. The device main body 21 includes functional parts such as a local cleaning device, a toilet bowl cleaning device, a toilet seat opening / closing device that automatically opens / closes the toilet seat 30, a toilet lid opening / closing device that automatically opens / closes the toilet lid 50, and a toilet seat heating device that warms the toilet seat 30. It houses a control unit 24 (see FIG. 1) that controls various sensors.

The toilet seat 30 is provided so as to be openable and closable. The toilet seat 30 is arranged in a prone position along the upper surface of the toilet body 11 in the closed state shown in FIG. In the open state shown in FIG. 3, the toilet seat 30 is arranged in an upright posture that is slightly inclined rearward toward the upper side of the toilet body 11. The toilet seat 30 rotates around the toilet seat shaft portion 22 in a closed state and an open state. For example, the toilet seat 30 is automatically opened and closed by driving a toilet seat opening / closing device incorporated in the device main body 21 based on a signal input from a remote controller or a detection signal of a human body detection sensor. Rotate.

As shown in FIG. 4, the toilet seat 30 has a seating portion (toilet seat main body portion) 31 and a toilet seat hinge portion 36. The seating portion 31 and the toilet seat hinge portion 36 are integrally provided with a hard resin material.

The seating portion 31 has an annular shape with an open central portion, and is arranged along the rim 12 (see FIG. 2) in a state where the toilet seat 30 is closed. When the toilet seat 30 is closed, the seating portion 31 has an upper surface 32 facing upward, an inner side surface 33 facing the inner peripheral side, an outer surface 34 facing the outer peripheral side, a lower surface facing downward, and an inner side surface 33 and a lower surface. It has a cutting surface formed between the outer surfaces 34 and a cutting surface formed between the outer surface 34 and the lower surface. The inner surface 33 and the outer surface 34 correspond to the side surface of the toilet seat 30. The lower end of the outer side surface 34 is located on the outer peripheral side of the upper end of the outer side surface 34 (see FIG. 9). The lower end of the outer side surface 34 constitutes the maximum outer shape of the toilet seat 30.

The toilet seat hinge portion 36 rotatably supports the toilet seat 30 with respect to the device main body 21. The toilet seat hinge portion 36 is assembled to the toilet seat shaft portion 22. A pair of toilet seat hinge portions 36 are provided at both ends of the seating portion 31 in the left-right direction. The toilet seat hinge portion 36 has a form protruding rearward from the rear end portion of the seating portion 31.

The toilet seat 30 includes the capacitive seating sensor 38 shown in FIG. The capacitance type seating sensor 38 is a sensor for detecting that a person has come into contact with the toilet seat 30 and determining the presence or absence of seating. The toilet seat device 20 appropriately exerts the functions of various functional parts based on the result of determining whether or not the toilet seat is seated. The toilet seat 30 is a heated toilet seat having a heat generating member 39 shown in FIG. 7. The heat generating member 39 is provided inside the hollow seating portion 31 and heats the upper surface 32 to a predetermined temperature.

As shown in FIGS. 2 and 3, the toilet lid 50 is provided so as to be openable and closable above the toilet seat 30. The toilet lid 50 is arranged in a prone position along the upper surface of the toilet bowl body 11 in the closed state. In the open state, the toilet lid 50 is arranged in an upright posture that is slightly inclined rearward toward the upper side of the toilet bowl body 11. The stool lid 50 rotates around the stool lid shaft portion 23 in a closed state and an open state. For example, the toilet lid 50 is in a closed state and an open state by driving a toilet lid opening / closing device incorporated in the device main body 21 based on a signal input from a remote controller or a detection signal of a human body detection sensor. Automatically rotates to.

The toilet lid 50 has a toilet lid main body 51, a toilet lid hinge 55, a foot 56, and a contact portion 57. The toilet lid main body 51 and the toilet lid hinge 55 are integrally provided with a hard resin material.

The toilet lid main body 51 covers the upper surface 32 and the entire opening of the seating portion 31 and the outer surface 34 in a state where the toilet lid 50 is closed. The toilet lid main body 51 has a flat upper plate portion 52 that is one size larger than the upper surface 32, and a hanging piece portion 53 that extends downward from the edge portion of the upper plate portion 52.

The toilet lid hinge portion 55 rotatably supports the toilet lid 50 with respect to the device main body 21. The toilet lid hinge portion 55 is assembled to the toilet lid shaft portion 23. A pair of toilet lid hinge portions 55 are provided at both ends of the toilet lid main body 51 in the left-right direction. The toilet lid hinge portion 55 has a form in which the toilet lid main body portion 51 projects rearward from the rear end portion. The toilet lid hinge portion 55 covers the upper surface and the outer surface of the toilet seat hinge portion 36.

As shown in FIG. 2, the foot portion 56 supports the stool lid main body portion 51 in a state where the stool lid 50 is closed. The tip of the foot 56 is formed of an elastic resin material such as synthetic rubber. The contact portion 57 is a portion that comes into contact with the seating surface 60 when both the toilet lid 50 and the toilet seat 30 are open.

As shown in FIGS. 4 and 5, the toilet seat device 20 includes a cushion member 40 that is detachably provided with respect to the toilet seat 30. The cushion member 40 is provided separately from the seating portion 31 and the toilet seat hinge portion 36. The cushion member 40 is an example of a cushion portion that constitutes a seating surface 60 when attached to the toilet seat 30 shown in FIG. The seating surface 60 is, for example, a surface that is exposed upward and comes into contact with the seated person when the toilet lid 50 is open and the toilet seat 30 is closed (see FIG. 1).

As a whole, the cushion member 40 has an annular shape with an open central portion like the seating portion 31. The cushion member 40 is made of a material softer than the seating portion 31 and the toilet seat hinge portion 36, and the larger the thickness, the better the cushioning property. The thickness of the cushion member 40 is measured with the direction perpendicular to the surface in contact with the seating portion 31 as the thickness direction when the cushion member 40 is attached to the toilet seat 30. As shown in FIGS. 6 to 8, the front half of the cushion member 40 includes a thin-walled portion 41 formed thinly. The thin-walled portion 41 has a sheet shape. The thickness of the thin portion 41 is preferably 2 mm or more and 7 mm or less. The rear half of the cushion member 40 is configured to include a thickly formed thick portion 42. The thickness of the thick portion 42 is preferably 10 mm or more and 30 mm or less. The thickness of the thick portion 42 is preferably 1.5 times or more and 15 times or less, and more preferably 2 times or more and 5 times or less of the thickness of the thin portion 41. The thickness of the thick portion 42 is preferably 10 mm or more and 30 mm or less. The thickness of the side surface portions 45 and 46, which will be described later, is preferably 2 mm or more and 7 mm or less.

As shown in FIGS. 5 to 8, the cushion member 40 has a thin portion 41 in the front end region RF. Specifically, the entire area of the front end region RF is composed of the thin portion 41. The front end region RF is, for example, a region from the front end to the rear 1/3 in the length from the front end to the rear end of the cushion member 40. As shown in FIG. 5, in the present embodiment, the positions of the front end and the rear end of the cushion member 40 are substantially the same as the positions of the front end 31A and the rear end 31B of the seating portion 31.

The thickness of the predetermined portions R1, R2, and R3 constituting the seating surface 60 of the cushion member 40 is larger than the thickness of the thin portion 41 of the cushion member 40. The predetermined parts R1, R2, and R3 are included in the region of the rear half of the seating surface 60. The predetermined portions R1 and R2 are at least a part of the regions located on the left and right rear sides of the seating surface 60. Specifically, in a state where the cushion member 40 is attached to the toilet seat 30, the predetermined portions R1 and R2 are provided on the left side and the right side with respect to the opening of the seating portion 31. The opening of the seating portion 31 is included in the length from the front end 31A to the rear end 31B of the seating portion 31, for example, the position from the rear end 31B in the range of 1/10 to 9/10, and is 1/8 in FIG. It is formed over the range of 7/8. The predetermined portions R1 and R2 are included in the length from the front end 31A to the rear end 31B of the seating portion 31, for example, the position from the rear end 31B in the range of 1/10 to 3/5, and 1 / in FIG. It is formed in the range of 5 to 2/5. The predetermined portions R1 and R2 are provided on the inner peripheral side of the seating portion 31 in the width direction of the seating portion 31 (see FIG. 9). The predetermined sites R1 and R2 are ischial support sites that support the ischium of the seated person. The predetermined portion R3 is at least a part of a region located at the center of the left and right sides of the seating surface 60. Specifically, in a state where the cushion member 40 is attached to the toilet seat 30, the predetermined portion R3 is provided on the rear side with respect to the opening of the seating portion 31. The predetermined portion R3 is provided at a position facing the opening of the seating portion 31 (see FIG. 6). The predetermined site R3 is a coccyx support site that supports the coccyx of the seated person.

As shown in FIG. 5, the center of gravity C1 of the cushion member 40 is located in the rear half of the length from the front end 31A to the rear end 31B of the seating portion 31. Specifically, the center of gravity C1 of the cushion member 40 is included in the range of the length from the front end to the rear end of the cushion member 40 to 1/3 from the rear end to the front. The center of gravity C1 of the cushion member 40 is arranged at a position closer to the toilet seat shaft portion 22 than the front end 31A of the seating portion 31 in the front-rear direction when the cushion member 40 is attached to the toilet seat 30 (FIGS. 2 and 3). reference).

As shown in FIG. 7, the cushion member 40 gradually increases in thickness from the thin portion 41 toward the rear. The front portion of the predetermined portions R1 and R2 and the region adjacent to the front side of the predetermined portions R1 and R2 have a gradually increasing thickness and a gentle slope shape on the upper surface. The region adjacent to the rear portion of the predetermined portions R1 and R2 and the rear side of the predetermined portions R1 and R2 has the maximum thickness in the cushion member 40. The rear end portion of the cushion member 40 has a shape that tapers toward the end side.

As shown in FIG. 9, the cushion member 40 has a U-shape in cross section in the width direction. The cushion member 40 has an upper surface portion 44 constituting the seating surface 60, and side surface portions 45 and 46 extending downward from both ends in the width direction of the upper surface portion 44. In the rear half of the cushion member 40, the thick portion 42 is provided on the upper surface portion 44. In the rear half of the cushion member 40, the thickness of the entire side surface portions 45 and 46 is smaller than the thickness of the upper surface portion 44. The thickness of the side surface portions 45 and 46 decreases toward the tip end side. The heights of the side surface portions 45 and 46 are smaller than the heights of the side surface portions 33 and 34 of the seating portion 31. With such a configuration, the cushion member 40 can be easily attached to the toilet seat 30, and the cushion member 40 can be miniaturized.

As shown in FIG. 10, the cushion member 40 is attached to the toilet seat 30 by the adhesive sheet 47. The adhesive sheet 47 is provided integrally with the cushion member 40 on the entire back surface of the cushion member 40. The adhesive sheet 47 has an adhesive surface that can be repeatedly attached and detached from the toilet seat 30. The adhesive sheet 47 has an adhesive force that maintains the attached state of the cushion member 40 when the cushion member 40 is attached to the toilet seat 30 and the toilet seat 30 is opened. In FIGS. 6 to 9, the cushion member 40 is drawn by omitting the adhesive sheet 47.

The cushion member 40 is made of a material that elastically deforms when the user sits down. The cushion member 40 is formed of, for example, a low-resilience foam such as urethane foam. The cushion member 40 has a degassing portion 48 for degassing during molding. Specifically, the cushion member 40 is foam-molded using a molding mold having a degassing hole, and an unfoamed or slightly foamed skin layer 49A is formed on the surface of the foamed layer 49B. The surface of the skin layer 49A has water repellency and antibacterial properties. The degassing portion 48 is a portion where the skin layer 49A is not formed by the degassing holes, and the foam layer 49B is exposed on the surface. The surface of the degassing portion 48 has a rough surface shape as compared with the surface of the skin layer 49A, and has an uneven shape. A plurality of degassing portions 48 are provided scattered on the back surface of the cushion member 40. The degassing portion 48 is covered with an adhesive sheet 47. Specifically, the plurality of degassing portions 48 and the skin layer 49A located on the back surface side of the cushion member 40 are collectively covered with the adhesive sheet 47.

The configuration of each part when the cushion member 40 is attached to the toilet seat 30 will be described. In the following description, unless otherwise specified, the state in which the cushion member 40 is attached to the toilet seat 30 will be described.

As shown in FIG. 5, the cushion member 40 covers the entire upper surface 32 of the seating portion 31. On the other hand, the cushion member 40 does not cover the upper surface of the toilet seat hinge portion 36, and a space is secured between the toilet seat hinge portion 36 and the toilet lid hinge portion 55 regardless of the presence or absence of the cushion member 40. (See FIG. 2). As shown in FIG. 9, the cushion member 40 covers the upper portions of the side surfaces 33 and 34 of the toilet seat 30. Specifically, the side surface portion 45 of the cushion member 40 covers the upper portion of the inner side surface 33, and the side surface portion 46 covers the upper portion of the outer surface surface 34. The cushion member 40 is arranged inside the maximum outer shape of the toilet seat 30. That is, the outer peripheral end portion forming the maximum outer shape of the cushion member 40 is located inside the outer peripheral end portion of the toilet seat 30. In the present embodiment, the outer peripheral end portion forming the maximum outer shape of the cushion member 40 is the tip end portion of the side surface portion 46. According to this configuration, the cushion member 40 and the toilet lid 50 are less likely to interfere with each other, and the toilet lid 50 can be sufficiently closed even when the cushion member 40 is attached to the toilet seat 30. According to the above configuration, the seating portion 31 can receive dirt that has jumped from the toilet bowl body 11, and it is possible to prevent the dirt from adhering to the cushion member 40.

The capacitive seating sensor 38 shown in FIG. 1 detects that the user has come into contact with the thin portion 41. In other words, the thickness of the thin portion 41 is set so as to suppress the influence on the detection of the capacitance type seating sensor 38 depending on the presence or absence of the cushion member 40. The thickness of the thin-walled portion 41 is set so that the heat from the heat generating member 39 can be transmitted to the seated person via the thin-walled portion 41.

As shown in FIGS. 2 and 3, the toilet seat device 20 can automatically open and close the toilet seat 30 by the toilet seat opening / closing device incorporated in the device main body 21 in a state where the cushion member 40 is attached to the toilet seat 30. .. For example, the cushion member 40 is configured so that the torque acting on the toilet seat shaft portion 22 can allow opening and closing by the toilet seat opening / closing device. From the viewpoint of reducing the torque acting on the toilet seat shaft portion 22, the mass of the cushion member 40 is preferably 400 g or less. The cushion member 40 is configured so that the standing posture of the toilet seat 30 does not tilt forward due to the cushion member 40 coming into contact with the toilet lid 50 when the toilet seat 30 is open. That is, when the cushion member 40 is attached and the toilet seat 30 is open, the toilet seat 30 is held in a vertical or backward tilted upright posture.

The toilet seat device 20 can automatically open and close the toilet lid 50 by the toilet lid opening / closing device incorporated in the device main body 21 with the cushion member 40 attached to the toilet seat 30. For example, the cushion member 40 is configured so that the cushion member 40 and the stool lid 50 do not come into contact with each other except that the thin-walled portion 41 comes into contact with the foot portion 56 when the stool lid 50 is closed. For example, in the present embodiment, the thickness of the cushion member 40 is the gap between the toilet seat 30 and the toilet lid 50 when the cushion member 40 is not attached, except for the portion 41A of the cushion member 40 where the foot portion 56 contacts. Is set smaller than.

As shown in FIG. 9, in the toilet seat device 20, the side surface 46A of the cushion member 40 is concealed by the toilet lid 50 in a state where the cushion member 40 is attached to the toilet seat 30 and the toilet lid 50 is closed. Specifically, when the toilet lid 50 is closed, the side surface portion 46 of the cushion member 40 is covered from the outer peripheral side by the hanging piece portion 53 of the toilet lid 50.

With reference to FIGS. 11A, 11B, and 11C, the state in which the toilet lid 50 is closed is compared with the case where the cushion member 40 is removed from the toilet seat 30 and the case where the cushion member 40 is attached to the toilet seat 30. explain. The foot 56 comes into contact with the toilet seat 30 when the cushion member 40 is removed from the toilet seat 30 and the toilet lid 50 is closed, and the cushion member 40 is attached to the toilet seat 30 and the toilet lid 50 is closed. Contact. As shown in FIG. 11A, the position of the front end of the toilet lid 50 in a state where the cushion member 40 is removed from the toilet seat 30 and the toilet lid 50 is closed is defined as P1. As shown in FIG. 11C, the position of the front end of the toilet lid 50 in a state where the cushion member 40 is attached to the toilet seat 30 and the toilet lid 50 is closed is defined as P2. P2 is displaced above P1 by the amount of the cushion member 40. The amount of displacement between P1 and P2 is smaller than the thickness of the portion 41A of the cushion member 40 with which the foot portion 56 contacts. That is, in the state where the toilet lid 50 is closed, the cushion member 40 is elastically deformed at the portion 41A in contact with the foot portion 56, and the thickness of the cushion member 40 is smaller than that in the natural state shown in FIG. 11B. In the present embodiment, the cushion member 40 is more easily elastically deformed than the foot portion 56. According to this configuration, the amount of displacement between P1 and P2 can be suppressed to be small as compared with the configuration in which the cushion member has higher rigidity than the foot portion.

The operation and effect of this embodiment will be described. The toilet seat 30 of the present embodiment includes a cushion member (cushion portion) 40 that forms at least a part of the seating surface 60. The thickness of the predetermined portions R1, R2, and R3 constituting the seating surface 60 of the cushion member 40 is larger than the thickness of the front end region RF of the cushion member 40.

As a result of the examination by the inventors of the present application, it has been found that it is effective to impart cushioning property to a predetermined portion supporting the ischium, the coccyx and the like in order to improve the sitting comfort of the toilet seat 30. On the other hand, it was found that the cushioning property in the front end region RF of the seating surface 60 has less influence on improving the sitting comfort as compared with the predetermined portions R1, R2, R3. The toilet seat 30 of the present embodiment has been developed based on these findings, and the thickness of the predetermined portions R1, R2, and R3 is larger than the thickness of the thin portion 41 in the front end region RF. Therefore, the cushion member 40 can improve the sitting comfort of the toilet seat 30. The toilet seat 30 of the present embodiment interferes with the opening / closing function of the toilet seat 30, the heating toilet seat function, the sensor function for detecting seating, and the like, as compared with the case where the front end region RF is the same as the thickness of the predetermined portions R1, R2, and R3. Hateful. As a result, it is possible to provide a comfortable toilet seat 30 while ensuring the functionality of the toilet seat 30.

In the present embodiment, the seating portion (toilet seat main body portion) 31 whose upper surface 32 is covered with the cushion member 40 is provided. The center of gravity of the cushion member 40 is located in the rear half of the length from the front end 31A to the rear end 31B of the seating portion 31. According to this configuration, the torque acting on the toilet seat shaft portion 22 can be reduced due to the fact that the cushion member 40 is attached to the toilet seat 30, and the load when opening and closing the toilet seat 30 can be reduced. According to the cushion member 40 in which the center of gravity C1 is located in the rear half of the length from the front end 31A to the rear end 31B of the seating portion 31, the toilet seat 30 is manually opened and closed by reducing the weight of the front end region RF. It is hard to feel the weight when doing.

In the present embodiment, the predetermined portions R1 and R2 are at least a part of the regions located on the left and right rear sides of the seating surface 60. According to this configuration, the ischial bone of the seated person can be supported by the predetermined portions R1 and R2, and the seating comfort of the toilet seat 30 can be improved.

In the present embodiment, the cushion member 40 gradually increases in thickness from the thin portion 41 toward the rear. According to this configuration, the seated person does not easily feel the change in the thickness of each part of the cushion member 40, and can sit on the seating surface 60 without discomfort.

In the present embodiment, the toilet lid 50 is provided above the seating surface 60 so as to be openable and closable. The stool lid 50 has a stool lid main body 51 and a foot 56 that supports the stool lid main body 51 in a closed state. In the cushion member 40, the thin portion 41 is in contact with the foot portion 56 when the toilet lid 50 is closed. According to this configuration, the amount of displacement in which the position of the toilet lid 50 is displaced depending on the presence or absence of the cushion member 40 can be reduced as compared with the configuration in which the thick portion 42 of the cushion member 40 contacts the foot portion 56. As a result, the toilet lid 50 can be sufficiently closed even when the cushion member 40 is attached to the toilet seat 30.

In the present embodiment, the toilet seat 30 includes a capacitance type seating sensor 38 that detects that the user has come into contact with the thin portion 41. According to this configuration, even when the cushion member 40 is attached to the toilet seat 30, the presence or absence of seating can be determined by the capacitance type seating sensor 38.

The toilet seat 30 of the present embodiment includes a seating portion 31 whose entire upper surface 32 is covered with a cushion member 40. According to this configuration, the seating comfort of the toilet seat 30 can be improved as compared with the configuration in which only a part of the upper surface 32 of the seating portion 31 is covered by the cushion member 40. For example, in a retrofitted toilet seat seat or the like divided into left and right in order to correspond to various shapes of toilet seats, a portion of the upper surface 32 of the seating portion 31 that supports the coccyx is not covered by the cushion member 40. On the other hand, in the present embodiment, since the cushion member 40 covers the entire upper surface 32 of the seating portion 31, the coccyx can be supported by the predetermined portion R3, and the sitting comfort can be improved. According to the above configuration, when the cushion member 40 is attached to the toilet seat 30, there is a sense of unity between the cushion member 40 and the toilet seat 30, and the design can be improved.

In the present embodiment, since the side surface portions 45 and 46 of the cushion member 40 come into contact with the inner side surface 33 and the outer surface 34 of the toilet seat 30, the cushion member 40 is less likely to be displaced in the width direction of the toilet seat 30, and the cushion member 40 is positioned. Cheap. In the present embodiment, since the cross-sectional shape of the cushion member 40 is U-shaped, the shape of the seating surface 60 can be stabilized as compared with the flat cushion sheet.

<Embodiment 2>
The toilet seat 30 of the second embodiment is different from the first embodiment in the range in which the seating portion 31 is covered by the cushion member 140. The same reference numerals are given to the same configurations as those in the first embodiment, and duplicate description will be omitted.

As shown in FIG. 12, the cushion member 140 has a U-shape in cross section in the width direction. The cushion member 140 has an upper surface portion 44 forming a seating surface 60, and side surface portions 145 and 146 extending downward from both ends in the width direction of the upper surface portion 44. The thickness of the side surface portions 145 and 146 decreases toward the tip end side. The heights of the side surface portions 145 and 146 are substantially the same as the heights of the side surface portions 33 and 34 of the seating portion 31.

The cushion member 140 covers the entire side surfaces 33 and 34 of the toilet seat 30. Specifically, the side surface portion 145 of the cushion member 140 covers the entire inner side surface 33, and the side surface portion 146 covers the entire outer surface 34. The cushion member 140 does not cover the cutting surfaces on both sides in the width direction located below the side surfaces 33 and 34 of the toilet seat 30.

In the toilet seat device 20, the side surface 146A of the cushion member 140 is concealed by the toilet lid 50 in a state where the cushion member 140 is attached to the toilet seat 30 and the toilet lid 50 is closed. Specifically, when the toilet lid 50 is closed, the side surface portion 146 of the cushion member 140 is covered from the outer peripheral side by the hanging piece portion 53 of the toilet lid 50.

In the present embodiment, since the cushion member 140 covers the entire upper surface 32 and the side surfaces 33 and 34 of the seating portion 31, there is a sense of unity between the cushion member 140 and the toilet seat 30, and the design of the toilet seat 30 can be improved.

In the present embodiment, the gap between the cushion member 140 and the toilet seat 30 is located on the back surface side of the toilet seat 30, as compared with the configuration in which the cushion member 140 covers only the upper portions of the side surfaces 33 and 34 of the toilet seat 30. Therefore, dirt from above is less likely to enter the gap between the cushion member 140 and the toilet seat 30, and the cleanability is good.

In the present embodiment, since the side surface portions 145 and 146 of the cushion member 140 come into contact with the inner side surface 33 and the outer surface 34 of the toilet seat 30, the cushion member 140 is less likely to be displaced in the width direction of the toilet seat 30, and the cushion member 140 is positioned. Cheap. In the present embodiment, since the cross-sectional shape of the cushion member 140 is U-shaped, the shape of the seating surface 60 can be stabilized as compared with the flat cushion sheet.

<Embodiment 3>
As shown in FIG. 13, the toilet seat 200 of the third embodiment is different from the first embodiment in that the cushion portion 240 is provided integrally with the toilet seat main body portion 230 and cannot be removed from the toilet seat main body portion 230. The cushion portion 240 has a configuration corresponding to the cushion member 40 of the first embodiment, and the toilet seat main body portion 230 has a configuration corresponding to the seating portion 31 of the first embodiment. The same reference numerals are given to the same configurations as those in the first embodiment, and duplicate description will be omitted.

The cushion portion 240 is integrally molded with the toilet seat main body portion 230 by two-color molding, insert molding, or the like. The surface of the cushion portion 240 is flush with the surface of the toilet seat main body portion 230. In the present embodiment, since no gap or step is formed between the cushion portion 240 and the toilet seat main body 230, it is difficult for dirt to enter between the cushion 240 and the toilet seat main body 230.

<Embodiment 4>
The toilet seat 30 of the fourth embodiment is different from the first embodiment in that the cushion portion 340 cannot be removed from the seating portion (toilet seat main body portion) 31 as shown in FIG. The cushion portion 340 has a configuration corresponding to the cushion member 40 of the first embodiment. The same reference numerals are given to the same configurations as those in the first embodiment, and duplicate description will be omitted.

The cushion portion 340 is fixed to the toilet seat 30 by the adhesive layer 347. The adhesive layer 347 is provided on the entire back surface of the cushion portion 340. The adhesive layer 347 is a layer in which an adhesive having excellent compatibility between the cushion portion 340 and the seating portion (toilet seat main body portion) 31 is solidified. In the present embodiment, the cushion portion 340 is less likely to be displaced from the toilet seat 30.

<Other embodiments>
The present disclosure is not limited to the embodiments described by the above description and drawings, and for example, the following embodiments are also included in the technical scope of the present disclosure.
(1) The predetermined portion may be any one of the predetermined portions R1, R2, R3. The predetermined part may be a part different from the above-mentioned predetermined parts R1, R2, R3. However, a portion other than the front end region is preferable.
(2) The front end region may be partially composed of a thin portion. The range of the front end region can be appropriately set according to the shape of the cushion member, the positional relationship with other members, and the like. The front end region is not limited to the front 1/3 region in the length from the front end to the rear end of the cushion member. For example, the front end region may be a front 1/4 region or a front 1/5 region in the length from the front end to the rear end of the cushion member.
(3) The position of the center of gravity of the cushion portion is not limited to the above-mentioned position.
(4) The shape and material of the cushion portion and the range covering the seating portion can be changed as appropriate. For example, in the configuration in which the photoelectric human body detection sensor is arranged at the seating portion or a position close to the seating portion, the upper surface of the seating portion may not cover the portion overlapping the path of infrared rays or the like. The cushion portion may cover only one of the inner surface and the outer surface of the toilet seat.
(5) In the above embodiment, the cushion portion constitutes the entire seating surface. The cushion portion may form only a part of the seating surface. For example, the seating surface may be composed of a cushion portion and a part of the upper surface of the seating portion.
(6) The configuration of the toilet seat can be changed as appropriate. For example, the toilet seat may be manually opened and closed instead of automatically. The toilet seat does not have to be equipped with a capacitive seating sensor. The toilet seat does not have to be a heated toilet seat. The shape of the seating portion is not limited to the above-mentioned shape, and may not have a cutting surface, for example. The portion of the seating portion that constitutes the maximum outer shape does not have to be the lower end of the outer surface, and may be, for example, the outer end of the lower surface. The seating portion may be formed in a plate shape instead of a hollow shape.
(7) The configuration of the toilet lid can be changed as appropriate. For example, the stool lid may be opened and closed manually rather than automatically.

30,200 ... Toilet seat, 31 ... Seating part (toilet seat body part), 31A ... Front end, 31B ... Rear end, 32 ... Top surface, 38 ... Capacitive seating sensor, 40, 140 ... Cushion member (cushion part), 41 ... Thin wall part, 50 ... Toilet lid, 51 ... Toilet lid body part, 56 ... Foot part, 60 ... Seating surface, 240, 340 ... Cushion part, C1 ... Center of gravity, R1, R2, R3 ... Predetermined part, RF ... Front end area

Claims (7)

A toilet seat with a cushion that forms at least part of the seating surface.
The cushion portion has a thin-walled portion in the front end region and has a thin wall portion.
A toilet seat in which the thickness of a predetermined portion of the cushion portion constituting the seating surface is larger than the thickness of the thin-walled portion. A toilet seat body portion in which at least a part of the upper surface is covered by the cushion portion is provided.
The toilet seat according to claim 1, wherein the center of gravity of the cushion portion is located in the rear half of the length from the front end to the rear end of the toilet seat main body portion. The toilet seat according to any one of claims 1 and 2, wherein the predetermined portion is at least a part of a region located on the left and right rear sides of the seating surface. The toilet seat according to any one of claims 1 to 3, wherein the cushion portion has a thickness gradually increasing from the thin portion toward the rear. A toilet lid is provided above the seating surface so that it can be opened and closed.
The stool lid has a stool lid body portion and a foot portion that supports the stool lid body portion in a closed state.
The toilet seat according to any one of claims 1 to 4, wherein the foot portion is in contact with the thin-walled portion in a state where the toilet lid is closed. The toilet seat according to any one of claims 1 to 5, further comprising a capacitive seating sensor that detects that the user has come into contact with the thin-walled portion. The toilet seat according to any one of claims 1 to 6, further comprising a toilet seat main body portion whose upper surface is entirely covered by the cushion portion.

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