JP7261392B2 - toilet lid - Google Patents

Description

The present invention relates generally to a toilet lid that covers the top of a toilet seat.

A toilet lid that covers the upper part of the toilet seat is sometimes made of a urea resin such as a urea resin or a melamine resin in order to give a luxurious appearance. Such toilet lids are rotatably supported on, for example, toilet bowls (Patent Document 1).

Japanese Patent No. 6478174

The toilet lid is closed to cover the toilet seat when the toilet is not in use. The inside of the toilet bowl tends to have a lower temperature and a higher humidity than the toilet room due to the influence of flush water, stagnant water, and the like. Then, when the humidity in the toilet room is low, the front side of the toilet lid dries and shrinks, and the back side of the toilet lid absorbs moisture and expands. If such a state continues for a long period of time, there is a risk that the toilet lid will be deformed and the gap between the toilet lid and the toilet seat will become larger.

The present invention has been made based on recognition of such problems, and an object of the present invention is to provide a toilet lid that can suppress an increase in the gap between the toilet lid and the toilet seat.

A first invention is a toilet lid comprising a covering portion made of urea resin and covering an upper surface of a toilet seat in a closed state, wherein the covering portion includes a back surface facing the upper surface of the toilet seat in the closed state; The upper surface has a surface located on the opposite side with the back surface interposed therebetween, and the back surface of the covering part absorbs moisture to at least partially suppress deformation of the covering part in a direction away from the toilet seat. The toilet lid is characterized by having a suppressing part.

The urea resin has the characteristic that it dries and shrinks in a low-humidity environment, and easily absorbs moisture and stretches in a high-humidity environment. When the toilet lid is closed, the humidity is high due to the accumulated water in the toilet bowl, and the back surface of the toilet lid facing the inside of the toilet bowl absorbs moisture and tends to stretch. As a result, the toilet lid may be bent and the front end of the toilet lid may be warped. In addition, as the bending of the toilet lid gradually increases, there is a risk that the toilet lid will eventually collide with the toilet seat. As a result, there is a risk that the front end of the toilet lid will warp upward. In addition, especially when the toilet is installed in a dry environment, the upper surface of the toilet lid dries and shrinks, and the back surface of the toilet lid absorbs moisture and stretches, so the curvature of the toilet lid tends to increase. However, according to this toilet lid, since at least a part of the back surface of the toilet lid has a moisture absorption suppressing portion, it is possible to suppress the occurrence of expansion and contraction of the toilet lid due to moisture absorption, and deformation of the toilet lid occurs. can be suppressed.

In a second aspect based on the first aspect, the covering portion comprises a front plate portion positioned on the front side and extending in the front-rear direction, and a rear plate portion bending obliquely upward from the rear end of the front plate portion. , and a toilet lid.

According to this toilet lid, even if the toilet lid has a bent shape in which the front end is likely to warp, the front plate portion (front end) is less likely to warp.

A third invention is the toilet lid according to the first or second invention, wherein the moisture absorption suppressing portion is a moisture absorption suppressing sheet attached to the back surface of the covering portion.

According to this toilet lid, the moisture absorption suppressing sheet can be easily attached to the existing toilet lid, so the cost can be reduced compared to the case of manufacturing a new toilet lid, for example.

A fourth invention is the toilet lid according to the third invention, wherein the moisture absorption suppressing sheet has a resin layer and a metal layer deposited on the resin layer.

According to this toilet lid, the resin layer and the metal layer vapor-deposited on the resin layer can further enhance moisture absorption suppression.

According to a fifth invention, in the third or fourth invention, the moisture absorption suppressing sheet has a printed layer and a protective layer attached to the printed layer to protect the printed layer. is the lid.

According to this toilet lid, by providing the printed layer, the color of the moisture absorption suppressing sheet can be set to a desired color in appearance, and the design is improved. In addition, by attaching a protective layer to the surface of the printed layer, it is possible to suppress peeling of the printed layer.

A sixth invention is the toilet lid according to the first or second invention, wherein the moisture absorption suppressing portion is made of a coating material applied to the back surface of the covering portion.

According to this toilet lid, the moisture absorption suppressing portion can be easily applied to the back surface of the covering portion.

A seventh invention is the toilet lid according to any one of the first to sixth inventions, wherein the moisture absorption suppressing portion is provided on half or more of the back surface of the covering portion.

According to this toilet lid, since the moisture absorption suppressing portion is provided in a wide range on the back surface of the covering portion, moisture absorption to the toilet lid can be reduced, and deformation of the toilet lid can be effectively suppressed.

In an eighth invention, in any one of the first to seventh inventions, the covering portion has edges projecting downward from the front end and the left and right side ends in the closed state, The toilet lid is characterized in that the projection dimension of the edge is smaller than the thickness dimension of the toilet seat.

According to this toilet lid, deformation of the toilet lid can be suppressed even if the projection dimension of the edge is smaller than the thickness dimension of the toilet seat, so that a toilet lid with a small edge can be realized.

In a ninth aspect of the invention, in any one of the first to eighth inventions, the covering portion includes a buffer portion that abuts on the upper surface of the toilet seat in front of the front end of the opening of the toilet seat in the closed state. It is a toilet lid characterized by having.

According to this toilet lid, the cushioning portion abuts against the upper surface of the toilet seat on the front end side of the toilet lid, so that the support point of the toilet lid is placed on the front side, and warping of the front end side of the toilet lid can be reduced.

ADVANTAGE OF THE INVENTION According to the aspect of this invention, the toilet lid which can suppress the clearance gap between a toilet lid and a toilet seat from becoming large is provided.

1 is a perspective view showing a toilet apparatus to which a toilet lid is attached according to an embodiment of the present invention; FIG. It is sectional drawing which shows a toilet in a cross section by setting the toilet lid in FIG. 1 to a closed state. It is a perspective view which shows a toilet lid alone. It is the front view which looked at the toilet lid from the back side. FIG. 5 is a cross-sectional view of the toilet lid in FIG. 4 as seen from the direction of arrows AA. FIG. 3 is a plan view of the toilet lid in FIG. 2 as viewed in the direction of arrows BB. FIG. 6 is a cross-sectional view similar to FIG. 5 showing a state in which a moisture absorption suppressing portion according to a modification of the present invention is applied to the back surface of the toilet lid;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each drawing, the same reference numerals are given to the same constituent elements, and detailed description thereof will be omitted as appropriate.
FIG. 1 is a perspective view showing a toilet apparatus with a toilet lid attached according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the toilet bowl in FIG. 1 with the toilet lid closed.

As shown in FIG. 1 , the toilet device 1 includes a western-style seated toilet (hereinafter simply referred to as “toilet” for convenience of explanation) 2 and a toilet seat device 3 provided above the toilet 2 . The toilet bowl 2 has a downwardly recessed bowl portion 2a. Pooled water W is stored in the bottom of the bowl portion 2a. The toilet bowl 2 receives excretion such as urine and feces of the user in the bowl portion 2a.

The toilet seat device 3 includes a body portion 4 installed on the toilet bowl 2, a toilet seat 5 rotatably supported on the body portion 4, and a toilet lid 10 rotatably supported on the body portion 4. I have. A main body portion 4 of the toilet seat device 3 is installed above and behind the bowl portion 2 a of the toilet bowl 2 . The body part 4 pivotally supports the toilet lid 10 on the rear end side so as to be able to open and close, and supports the toilet seat 5 on the front side of the toilet lid 10 so that the toilet seat 5 can be opened and closed. Note that the main body portion 4 may be provided integrally with the toilet bowl 2 .

The main body 4 has a hollow box shape, and includes an opening/closing unit for controlling the opening/closing operation between the toilet seat 5 and the toilet lid 10, a toilet seat heating unit for controlling the temperature of the toilet seat 5, and a washing unit for washing human body parts. , a deodorizing unit for reducing odorous components, and a communication unit capable of communicating with an operation unit such as a remote control (none of which are shown) are incorporated as required.

The upper surface of the body portion 4 is formed in a stepped shape by a front upper surface 4a positioned on the front side and a rear upper surface 4b positioned on the rear side and raised by one step from the front upper surface 4a. The front upper surface 4a and the rear upper surface 4b are inclined downward from the rear to the front. Toilet seat mounting portions 4c for rotatably mounting the toilet seat 5 are provided on both left and right sides of the rear end side of the front upper surface 4a. Further, toilet lid mounting portions 4d for rotatably mounting the toilet lid 10 are provided on both left and right sides of the rear end side of the rear upper surface 4b.

The toilet seat 5 is for a user to sit on, and is formed along the outer shape of the toilet bowl 2 . When the toilet seat 5 and the toilet lid 10 are closed, the upper surface 5a of the toilet seat 5 is covered with the toilet lid 10 from above. When the toilet seat 5 and the toilet lid 10 are opened, the upper surface 5a of the toilet seat 5 is covered with the toilet lid 10 from behind. The central portion of the toilet seat 5 is formed with an opening 5c corresponding to the bowl portion 2a of the toilet bowl 2 and penetrating from the upper surface 5a to the lower surface 5b.

The toilet seat 5 has a front side extending in the front-rear direction along the toilet bowl 2 and a rear side extending in the front-rear direction along the front upper surface 4 a of the body portion 4 in a state closed to the toilet bowl 2 . In this case, the upper surface 5 a of the toilet seat 5 is continuous with the rear upper surface 4 b of the body portion 4 . As a result, the toilet seat device 3 has a smooth design as a whole. At the rear end of the toilet seat 5, toilet seat rotating portions 5d that are rotatably attached to the respective toilet seat attaching portions 4c of the main body portion 4 are provided at both left and right ends.

Next, the toilet lid 10 according to this embodiment will be described.
FIG. 3 is an enlarged perspective view showing the toilet lid alone.
FIG. 4 is an enlarged front view of the toilet lid as seen from the back side.
FIG. 5 is an enlarged cross-sectional view of the toilet lid in FIG. 4 as viewed in the direction of arrows AA. In FIG. 5, the thickness dimensions of the moisture absorption suppressing portion and the label are exaggerated for convenience of explanation.
FIG. 6 is a plan view of the toilet lid in FIG. 2 as viewed in the direction of arrows BB.

The toilet lid 10 is rotatably supported by the toilet lid mounting portion 4 d of the body portion 4 . The toilet lid 10 is made of urea resin such as urea resin or melamine resin, and has a covering portion 11 that covers the upper surface 5a of the toilet seat 5 in the closed state (state shown in FIG. 2). That is, the covering portion 11 covers the toilet bowl 2, the toilet seat 5, and the main body portion 4 in the closed state. The covering portion 11 has a back surface 12 facing the upper surface 5a of the toilet seat 5 in the closed state, and a surface 13 located on the opposite side of the upper surface 5a with the back surface 12 interposed therebetween. The rear surface 12 of the covering portion 11 has a moisture absorption suppressing portion 20 which will be described later.

As shown in FIG. 2, the covering portion 11 has a front plate portion 11a positioned on the front side and extending in the front-rear direction, and a rear plate portion 11b bent obliquely upward from the rear end of the front plate portion 11a. are doing. That is, the covering portion 11 is a plate-like body that is bent downward in the front-rear direction. The front plate portion 11 a extends rearward from the front end of the toilet seat 5 along the upper surface 5 a of the toilet seat 5 . The rear plate portion 11b extends rearward along the upper surface 5a of the toilet seat 5 and the rear upper surface 4b of the main body portion 4 from the rear end of the front plate portion 11a. A toilet lid rotating portion 14 is provided on the rear end side of the rear plate portion 11b so as to protrude from the rear surface 12 at a position corresponding to the toilet lid mounting portion 4d of the main body portion 4. As shown in FIG.

The edge portion 15 is provided on the outer peripheral side of the covering portion 11 . The edge portions 15 protrude downward from the front end portion and the left and right side end portions of the covering portion 11 when the toilet lid 10 is closed. That is, the toilet lid 10 is formed into a dish shape by the covering portion 11 and the edge portion 15 . The rim 15 laterally closes the space between the toilet seat 5 and the cover 11 when the toilet lid 10 is closed. Edge portion 15 suppresses deformation of covering portion 11 by protruding from covering portion 11 . In this case, as shown in FIG. 2, the protrusion dimension L1 of the edge portion 15 is smaller than the thickness dimension L2 of the toilet seat 5 . As a result, the toilet lid 10 has an improved design as a whole.

The buffer portion 16 is provided on the rear surface 12 of the front plate portion 11a. Two cushioning portions 16 are provided, for example, spaced apart in the left-right direction. The cushioning portion 16 is made of, for example, a resin material such as elastomer, and extends rearward from the front end of the covering portion 11 when the toilet lid 10 is closed. The cushioning portion 16 contacts the upper surface 5a of the toilet seat 5 when the toilet lid 10 is closed and when the toilet seat 5 and the toilet lid 10 are opened. Thereby, the buffer portion 16 prevents the toilet lid 10 and the toilet seat 5 from coming into contact with each other.

The toilet lid 10 is supported by the pair of toilet lid mounting portions 4d and the pair of cushioning portions 16 in the closed state in which the toilet lid 10 is closed. In this case, the cushioning portion 16 contacts the upper surface 5a of the toilet seat 5 in front of the front end of the opening 5c of the toilet seat 5 in the closed state. That is, as shown in FIG. 6, the contact position X of the cushioning portion 16 with the upper surface 5a of the toilet seat 5 is forward of the front end of the opening 5c of the toilet seat 5 (point Y in FIG. 6). In other words, when the toilet lid 10 is in the closed state, the front end side of the toilet lid 10 contacts the upper surface 5a of the toilet seat 5 as much as possible. As a result, since the distance between the contact position X and the front end of the front plate portion 11a of the toilet lid 10 is short, it is possible to reduce the upward bending of the front end side of the front plate portion 11a with the contact position X as a support point. can.

Next, the moisture absorption suppressing portion 20 provided on the back surface 12 of the toilet lid 10 will be described.

Moisture absorption suppressing portion 20 is provided on at least a portion of rear surface 12 of covering portion 11 . Preferably, the moisture absorption suppressing portion 20 is provided on half or more of the rear surface 12 of the covering portion 11 . More preferably, the moisture absorption suppressing portion 20 is provided over the entire back surface 12 of the covering portion 11 . That is, it is preferable that the moisture absorption suppressing portion 20 is provided on the rear surface 12 of the covering portion 11 in as wide a range as possible. Thereby, moisture absorption can be suppressed in a wide range of the back surface 12 of the toilet lid 10 . The range and location where the moisture absorption suppressing portion 20 is provided can be set experimentally, by simulation, or the like, depending on the environment such as the temperature and humidity of the place where the toilet device 1 is installed.

The moisture absorption suppressing part 20 protects the back surface 12 of the covering part 11 and suppresses the absorption of moisture evaporated from the stagnant water W of the toilet bowl 2 to the back surface 12 of the covering part 11 . As a result, the moisture absorption suppressing portion 20 can suppress the stretching of the back surface 12 of the covering portion 11 and suppress the deformation of the covering portion 11 in the direction away from the toilet seat 5 .

The moisture absorption suppressing portion 20 is, for example, a moisture absorption suppressing sheet attached to the back surface 12 of the covering portion 11 . As shown in FIG. 5, the moisture absorption suppressing portion 20 (moisture absorption suppressing sheet) includes a base material 21, a protective layer 25 provided on one side of the base material 21 to protect the base material 21 from the outside, and a base material. and an adhesive layer 26 provided on the other surface side of the cover portion 11 and adhered to the back surface 12 of the covering portion 11 .

The base material 21 of the moisture absorption suppressing portion 20 has a resin layer 22 and a metal layer 23 deposited on the resin layer 22 . The resin layer 22 is made of PET (polyethylene terephthalate), for example. The metal layer 23 is made of silver, for example, and deposited on one side of the resin layer 22 . That is, the metal layer 23 is positioned between the resin layer 22 and the adhesive layer 26 . The moisture absorption suppressing portion 20 has a lower moisture permeability than the covering portion 11 of the toilet lid 10 due to the metal layer 23 . That is, the moisture absorption suppressing portion 20 is waterproof, and suppresses the moisture adhering to the moisture absorption suppressing portion 20 from permeating through and reaching the rear surface 12 of the toilet lid 10 .

Also, the moisture absorption suppressing portion 20 has a printed layer 24 and a protective layer 25 attached to the printed layer 24 to protect the printed layer 24 . The printed layer 24 is provided on the surface opposite to the metal layer 23 vapor-deposited on the resin layer 22, and is printed in the same color as the toilet lid 10, for example. As a result, the border between the rear surface 12 of the covering portion 11 and the moisture absorption suppressing portion 20 can be made inconspicuous, and the design of the toilet lid 10 can be improved.

The protective layer 25 is a sheet made of, for example, a transparent resin, and is attached to the opposite side of the printed layer 24 to the resin layer 22 . The protective layer 25 protects the printed layer 24 from the outside, thereby preventing the printed layer 24 from being scratched or discolored.

The label 30 is positioned in the central portion of the back surface 12 of the toilet lid 10 and adhered onto the protective layer 25 of the moisture absorption suppressing portion 20 . This label 30 includes a base material 31 as a base, a protective layer 34 provided on one side of the base material 31 to protect the base material 31 from the outside, an adhesive layer 35 provided on the other side of the base material 31, have. Note that the label 30 may be attached to the back surface 12 of the toilet lid 10 . Also, the moisture absorption suppressing portion 20 may be provided on the label 30 (on the side opposite to the toilet lid 10). Also, the label 30 may not be provided on the toilet lid 10 .

A base material 31 of the label 30 has a resin layer 32 and a printed layer 33 printed on the resin layer 32 . Note that the resin layer 32 may be a paper layer. On the printed layer 33, for example, safety precautions regarding the use of the toilet device 1 and requests regarding care are described. The protective layer 34 is a sheet made of, for example, a transparent resin, and is attached to the surface of the printed layer 33 opposite to the resin layer 32 . The protective layer 34 protects the printed layer 33 from the outside, thereby preventing the printed layer 33 from being scratched or discolored.

The toilet lid 10 according to the present embodiment has the configuration as described above. Next, suppression of deformation of the toilet lid 10 will be described.

The toilet lid 10 is made of, for example, urea resin such as urea resin or melamine resin in order to give a luxurious appearance. Such a urea resin has the characteristic that it dries and shrinks in a low-humidity environment, and easily absorbs moisture and stretches in a high-humidity environment. When the toilet lid 10 is closed, the humidity inside the bowl portion 2a is high due to the accumulated water W in the toilet bowl 2 . Therefore, the back surface 12 of the toilet lid 10, which faces the inside of the bowl portion 2a, absorbs moisture and stretches easily.

In this case, for example, when the toilet room in which the toilet device 1 is installed is in a dry state, the front surface 13 side of the toilet lid 10 is in a dry state, and the back surface 12 side of the toilet lid 10 is in a wet state. Therefore, the toilet lid 10 is subjected to drying and shrinking force on the front surface 13 side, and moisture absorption and stretching force is applied to the back surface 12 side. As a result, force acts on the toilet lid 10 in opposite directions on the front surface 13 side and the back surface 12 side, and a force acts to deform the toilet lid 10 so as to warp it. Such a force that tends to deform the toilet lid 10 becomes more pronounced as the environment (dryness, temperature) difference between the toilet room and the inside of the toilet bowl 2 increases.

The toilet lid 10 has a toilet lid rotating portion 14 provided on the rear end side supported by the toilet lid mounting portion 4 d , and a front end side supported on the toilet seat 5 by the cushioning portion 16 . The toilet lid 10 has a downward recessed shape formed by a front plate portion 11a extending in the front-rear direction and a rear plate portion 11b bending obliquely upward from the rear end of the front plate portion 11a. Therefore, when forces act in opposite directions on the back surface 12 and the front surface 13 of the toilet lid 10, the front end side of the front plate portion 11a tends to warp upward. Therefore, if the toilet lid 10 warps, there is a risk that the back surface 12 of the toilet lid 10 will come into contact with the toilet seat 5 . When the toilet lid 10 comes into contact with the toilet seat 5, the front end side of the front plate portion 11a warps at a remarkable speed with the contact point as a fulcrum, and the toilet lid 10 may rattle more. .

Therefore, the toilet lid 10 of this embodiment has a moisture absorption suppressing portion 20 on the back surface 12 . The moisture absorption suppressing part 20 is, for example, a moisture absorption suppressing sheet that suppresses the adhesion of moisture to the back surface 12 of the toilet lid 10 . This moisture absorption suppressing sheet is obtained by vapor-depositing a metal layer 23 on a resin layer 22 to enhance moisture absorption suppression to the back surface 12 of the toilet lid 10 . That is, the moisture absorption suppressing sheet is provided separately from the label 30 on which the caution information of the toilet device 1 and the like are described. In other words, the moisture permeability of the moisture absorption suppression sheet is lower than that of the label 30 .

Thereby, expansion of the back surface 12 of the toilet lid 10 can be reduced. As a result, the difference in stretching force acting on the back surface 12 and the front surface 13 of the toilet lid 10 can be reduced, so deformation (warping) of the toilet lid 10 can be suppressed. As a result, the life of the toilet lid 10 can be improved.

By using a moisture absorption suppressing sheet as the moisture absorption suppressing part 20, it can be easily attached to the back surface 12 of the toilet lid 10 of the existing toilet device 1, compared to the case where the toilet lid 10 is provided with a reinforcing part such as a rib. As a result, it is possible to suppress an increase in the weight of the toilet lid 10 and reduce the cost.

Also, the moisture absorption suppressing sheet has a printed layer 24 . The printed layer 24 has the same color as the toilet lid 10 (back surface 12 of the toilet lid 1), for example. This makes it difficult to recognize the boundary between the back surface 12 of the toilet lid 10 and the moisture absorption suppressing sheet, so that the design of the toilet lid 10 can be improved. Further, by making the moisture absorption suppressing sheet the same color as the toilet lid 10, it is possible to prevent the moisture absorption suppressing sheet from being accidentally peeled off from the toilet lid 10. - 特許庁

Moreover, it is preferable that the adhesive strength of the adhesive layer 26 of the moisture absorption suppressing sheet is stronger than the adhesive strength of the adhesive layer 35 of the label 30 . As a result, for example, even if the label 30 attached on the moisture absorption suppressing sheet is peeled off, the moisture absorption suppressing sheet can remain on the back surface 12 of the toilet lid 10. It can prevent peeling. Moreover, when the label 30 is about to be peeled off, the print layer 24 can be protected by the protective layer 25 of the moisture absorption suppressing sheet.

In addition, the toilet lid 10 has a downwardly recessed curved shape that is more easily deformed (easily warped). By providing the toilet lid 10 having such a shape with the moisture absorption suppression part 20, the toilet lid 10 can be installed regardless of the environment, and the versatility of the toilet lid 10 can be improved.

In addition, the moisture absorption suppressing portion 20 is provided on half or more of the back surface 12 of the toilet lid 10 . As a result, moisture absorption can be suppressed in a wide range of the back surface 12, so deformation of the toilet lid 10 can be effectively suppressed.

Also, the protrusion dimension L1 of the edge portion 15 of the toilet lid 10 is smaller than the thickness dimension L2 of the toilet seat 5 . That is, by providing the moisture absorption suppressing portion 20 on the back surface 12 of the toilet lid 10, the protrusion dimension L1 of the edge portion 15 can be made as small as possible. As a result, the overall thickness of the toilet lid 10 can be reduced, so that the weight of the toilet lid 10 can be reduced and the design can be improved.

The toilet lid 10 also has a cushioning portion 16 that contacts the upper surface 5 a of the toilet seat 5 . A contact position X between the cushioning portion 16 and the upper surface 5a of the toilet seat 5 serves as a support point when the toilet lid 10 warps. Here, for example, when the cushioning portion is in contact with the central portion of the toilet seat in the front-rear direction, the distance from the contact portion to the front end of the toilet lid becomes long, so even a slight warp of the toilet lid 10 may The gap between the toilet lid and the toilet seat becomes wider.

Therefore, in this embodiment, the cushioning portion 16 of the toilet lid 10 contacts the upper surface 5a of the toilet seat 5 in front of the front end (point Y in FIG. 6) of the opening 5c of the toilet seat 5 in the closed state. As a result, the dimension from the support point (contact position X in FIG. 6) of the toilet lid 10 to the front end of the toilet lid 10 is reduced. Therefore, even if the toilet lid 10 is warped, the gap between the toilet seat 5 and the toilet lid 10 can be reduced, and the deterioration of the design can be suppressed.

FIG. 7 is a cross-sectional view similar to FIG. 5 showing a state in which the moisture absorption suppressing portion according to the modification of the present invention is applied to the back surface of the toilet lid.
In the above-described embodiment, the case where the moisture absorption suppressing portion 20 is a moisture absorption suppressing sheet attached to the back surface 12 of the toilet lid 10 has been described as an example. However, the present invention is not limited to this. For example, as in a modification shown in FIG. This paint can be, for example, an epoxy paint. Thereby, the moisture absorption suppressing portion 20 can be easily applied to the rear surface 12 of the covering portion 11 . Moreover, by using the same color as the toilet lid 10 or a transparent coating agent, the boundary with the toilet lid 10 can be made inconspicuous, and the design of the toilet lid 10 can be improved.

In the above-described embodiment, the case where the toilet lid 10 is bent downward by the front plate portion 11a and the rear plate portion 11b has been described as an example. However, the present invention is not limited to this, and for example, the toilet lid may have a flat covering portion. This also applies to the modified examples.

Moreover, in the embodiment described above, the case where the two cushioning portions 16 are provided in the toilet lid 10 has been described as an example. However, the present invention is not limited to this, and for example, one cushioning portion may be provided in the central portion of the toilet lid 10 in the left-right direction. Also, the toilet lid 10 may be provided with three or more buffer portions.

Moreover, in the embodiment described above, the case where the moisture absorption suppressing portion 20 is provided only on the back surface 12 of the toilet lid 10 has been described as an example. However, the moisture absorption suppressing portion 20 may be provided not only on the back surface 12 but also on the front surface 13 and the edge portion 15 of the toilet lid 10 .

The embodiments of the present invention have been described above. However, the invention is not limited to these descriptions. Appropriate design changes made by those skilled in the art with respect to the above-described embodiments are also included in the scope of the present invention as long as they have the features of the present invention. For example, the shape, size, material, arrangement, etc. of each element included in the toilet lid 10 are not limited to those illustrated and can be changed as appropriate. In addition, each element provided in the above-described embodiments can be combined as long as it is technically possible, and a combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

1 toilet device 2 toilet bowl 2a bowl portion 3 toilet seat device 4 body portion 4a front upper surface 4b rear upper surface 4c toilet seat mounting portion 4d toilet lid mounting portion 5 toilet seat 5a upper surface 5b lower surface 5c opening , 5d toilet seat rotating portion, 10 toilet lid, 11 covering portion, 11a front plate portion, 11b rear plate portion, 12 back surface, 13 front surface, 14 toilet lid rotating portion, 15 edge portion, 16 buffer portion, 20 moisture absorption suppressing portion , 21 base material, 22 resin layer, 23 metal layer, 24 printed layer, 25 protective layer, 26 adhesive layer, 30 label, 31 base material, 32 resin layer, 33 printed layer, 34 protective layer, 35 adhesive layer, W reservoir water

Claims (9)

A toilet lid comprising a covering part formed of urea resin and covering the upper surface of a toilet seat in a closed state,
The covering portion has a back surface facing the top surface of the toilet seat in the closed state, and a surface located opposite to the top surface with the back surface interposed therebetween,
A toilet lid, wherein the rear surface of the covering part has, at least in part, a moisture absorption suppressing part that suppresses deformation of the covering part in a direction away from the toilet seat. 2. The covering portion has a front plate portion positioned on the front side and extending in the front-rear direction, and a rear plate portion bending obliquely upward from a rear end of the front plate portion. Described toilet lid. The toilet lid according to claim 1 or 2, wherein the moisture absorption suppressing portion is a moisture absorption suppressing sheet attached to the back surface of the covering portion. 4. The toilet lid according to claim 3, wherein the moisture absorption suppressing sheet has a resin layer and a metal layer vapor-deposited on the resin layer. 5. The toilet lid according to claim 3, wherein the moisture absorption suppressing sheet has a printed layer and a protective layer attached to the printed layer to protect the printed layer. 3. The toilet lid according to claim 1, wherein the moisture absorption suppressing portion is made of a coating material applied to the back surface of the covering portion. The toilet lid according to any one of claims 1 to 6, wherein the moisture absorption suppressing portion is provided on half or more of the back surface of the covering portion. The covering portion has edge portions projecting downward from the front end portion and the left and right side end portions in the closed state,
The toilet lid according to any one of claims 1 to 7, wherein the protrusion dimension of the edge is smaller than the thickness dimension of the toilet seat. The covering part according to any one of claims 1 to 8, characterized in that the covering part has a buffering part that abuts on the upper surface of the toilet seat in front of the front end of the opening of the toilet seat in the closed state. toilet lid.

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