TW201841583A - Toilet seat - Google Patents

Abstract

Provided is a toilet seat equipped with side wall portions which each have a wall surface along the vertical direction, and a bottom panel which is connected to the side wall portions and has a bottom surface facing downward, wherein a water-repellent region having higher water repellency than the wall surfaces is provided to the surface directly below each side wall portion.

Description

Toilet seat

Aspects of the invention relate to a general toilet seat.

The toilet seat is configured, for example, by fitting or joining an upper plate that is in contact with the buttocks and a bottom plate that is provided on the toilet side. Patent Document 1 discloses a technique in which a plurality of resin members are joined by fusion to form a toilet seat, and a coating material is applied to a joint portion of the members. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 5200485

[Problems to be solved by the invention]

In the toilet seat, there may be water in the case of use or cleaning. At this time, the water droplets adhering to the side wall surface of the toilet seat may flow through the wall surface and spread to the bottom surface. Thereby, there is a possibility that the dirt such as dust contained in the water droplets adheres to a wide range of the toilet seat. Therefore, in the conventional toilet seat, it is necessary to clean a wide range of the bottom surface during cleaning. Therefore, there is still room for improvement in terms of cleanability. The present invention has been completed based on the recognition of the subject, and an object thereof is to provide a toilet seat that can improve cleaning performance. [Means to solve the problem]

A toilet seat according to a first aspect of the invention includes a side wall portion having a wall surface along a vertical direction, and a bottom plate joined to the side wall portion and having a bottom surface facing downward, and a water-repellent region having a higher water repellency than the wall surface It is a surface provided directly below the side wall portion.

According to the toilet seat, the water droplets flowing through the wall surface are blocked by the water-repellent area and dripped from the toilet seat when flowing to the bottom surface. Therefore, the dirt contained in the water droplets is difficult to spread to the bottom surface. Since it is not necessary to clean the wide range of the bottom surface during cleaning, the cleaning property of the toilet seat can be improved.

According to a second aspect of the invention, in the toilet seat of the first aspect of the invention, at least a part of the water-repellent region is located outside the center surface of the side wall portion.

According to the toilet seat, the range in which the water droplets spread on the bottom surface can be made narrower, and the cleaning property of the toilet seat can be further improved.

According to a third aspect of the invention, in the toilet seat according to the first or second aspect of the invention, the water-repellent region and the region other than the water-repellent region of the surface are smoothly connected.

According to the toilet seat, it is possible to effectively suppress the expansion of water droplets on the bottom surface. Further, even if the water droplets do not drip from the bottom surface but stay near the water-repellent area, the dirt can be easily removed. Therefore, according to the toilet seat, the dirt is not easily left and the dirt is easily wiped off. Thereby, the cleaning property can be further improved.

According to a fourth aspect of the present invention, in the toilet seat according to any one of the first to third aspects of the present invention, the side wall portion is joined to the bottom plate and has an exposed surface exposed to the outside, and the exposed surface is The aforementioned water-repellent area functions.

According to the toilet seat, for example, the water-repellent region can be formed when the joint member is formed, and the manufacturing can be facilitated. The joining member is provided close to the lower end of the wall surface in order to join the side wall portion and the bottom plate. Therefore, the exposed surface functions as a water-repellent area, whereby the water droplets can be effectively prevented from expanding on the bottom surface.

A toilet seat according to a fifth aspect of the invention includes a first surface having a wall surface along a vertical direction, an inclined surface connected to a lower end of the wall surface and facing downward from the wall surface, and a second surface connected to the inclined surface The surface is oriented downward, and a water-repellent area having a higher water repellency than the wall surface is provided on the inclined surface.

According to the toilet seat, the water droplets flowing through the wall surface are blocked by the water-repellent area and dripped from the toilet seat when surrounding the second surface. Therefore, the dirt contained in the water droplets is difficult to spread to the bottom surface. It is not necessary to clean the wider range of the bottom surface during cleaning. The water-repellent area is set to an inclined surface, so that the water droplets are easily surrounded from the wall surface to the inclined surface. The water droplets are easily blocked by the water-repellent area and drip. Thereby, the cleaning property of the toilet seat can be improved.

According to a sixth aspect of the invention, in the toilet seat of the fifth aspect of the invention, the water-repellent region and the region other than the water-repellent region of the first surface are smoothly connected.

According to the toilet seat, it is possible to effectively suppress the spread of water droplets on the second surface. Further, even if the water droplets do not drip but stay in the vicinity of the water-repellent area, the dirt can be easily removed. Therefore, according to the toilet seat, the dirt is not easily left and the dirt is easily wiped off. Thereby, the cleaning property can be further improved.

According to a seventh aspect of the present invention, in the toilet seat of the fifth or sixth aspect, the first member includes a first surface, the second member has at least a part of the second surface, and a joining member The first member and the second member are joined to each other and have an exposed surface exposed to the outside, and the exposed surface functions as the water-repellent region.

According to the toilet seat, for example, the water-repellent region can be formed when the joint member is formed, and the manufacturing can be facilitated. The joining member is provided to be close to the end of the second surface in order to join the first member and the second member. Then, the exposed surface functions as a water-repellent area, whereby the water droplets can be effectively prevented from spreading on the second surface.

According to a seventh aspect of the invention, in the toilet seat according to any one of the first to seventh aspects, the water-repellent region includes a neodymium-based resin, a fluorine-based resin, a cerium-oxygen grafted polypropylene, a silicone rubber, and a crucible. At least any one of oxyresin oils.

When water repellency is imparted to the water-repellent area by the uneven structure or the like, there is a possibility that the water-repellent structure is deformed or damaged by the use of the toilet seat, and the water repellency is lowered. However, according to the toilet seat of the eighth aspect of the invention, the water repellency is imparted by the material. Therefore, the decrease in water repellency can be suppressed.

According to a ninth aspect of the invention, in the toilet seat according to any one of the first to eighth aspects, the water-repellent region has a concavo-convex structure on the surface.

In the case where the water repellency is imparted by the characteristics of the material, there is a possibility that the material changes due to the passage of time or the surrounding environment, and the water repellency is lowered. However, according to the ninth aspect of the invention, the toilet seat is provided with water repellency by the uneven structure. Therefore, the decrease in water repellency can be suppressed. [Effects of the Invention]

According to an aspect of the present invention, a toilet seat capable of improving cleaning performance is provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals, and the detailed description is omitted as appropriate.

Fig. 1 is a perspective view showing a toilet device including a toilet seat according to an embodiment. As shown in Fig. 1, the toilet device 2 includes a toilet seat device 4 and a western sitting toilet (hereinafter simply referred to as "toilet") 6.

The toilet seat device 4 is mounted on the toilet 6. The toilet seat device 4 can also be integrally mounted to the toilet 6. The toilet seat device 4 can also be mounted to be detachable from the toilet 6. The toilet seat device 4 has a toilet seat 10, a toilet lid 12, and a body portion 14.

In the present specification, the upper side of the user sitting on the toilet seat 10 is referred to as "above", and the lower side of the user sitting on the toilet seat 10 is referred to as "lower". The left and right directions of the toilet seat 12 that is placed on the toilet seat 10 in the open state are referred to as "left side" and "right side", respectively, and the front and rear directions are referred to as "front" and "front", respectively. rear". FIG. 1 shows an example of the upper UW, the lower DW, the left side LW, the right side RW, the front FW, and the rear BW.

The toilet bowl 6 has a bowl portion 6a that is recessed downward. The toilet 6 is an excrement that receives urine or stool from the user in the bowl portion 6a. The body portion 14 of the toilet seat device 4 is provided at an upper portion rearward of the bowl portion 6a of the toilet 6. The body portion 14 pivotally supports the toilet seat 10 and the toilet lid 12 to be openable.

The toilet seat 10 has an opening 10a. The toilet seat 10 is provided on the toilet 6 to surround the outer edge of the bowl portion 6a. The bowl portion 6a is exposed through the opening portion 10a. Thereby, the user can discharge the bowl portion 6a while sitting on the toilet seat 10. In this example, the O-shaped toilet seat 10 is formed as an opening portion 10a having a through hole shape. The toilet seat 10 is not limited to the O type, and may be a U shape or the like. A heater or the like for warming the seating portion (the portion in contact with the user's buttocks) is appropriately provided inside the toilet seat 10.

Fig. 2 is an exploded perspective view showing the toilet seat of the embodiment. Fig. 3 is a perspective cross-sectional view showing a part of a toilet seat according to an embodiment.

As shown in FIGS. 2 and 3, the toilet seat 10 has a bottom plate 100 and an upper plate 200. The upper plate 200 is disposed above the bottom plate 100. The bottom plate 100 and the upper plate 200 are joined by the joint member 310 and the joint member 320.

A more specific configuration of the toilet seat 10 will be described. Here, the direction of "upper" or "lower" is based on the state in which the bottom plate 100 of the toilet seat 10 is placed on a horizontal surface.

As shown in FIG. 2, the bottom plate 100 and the upper plate 200 have an opening 100a and an opening 200a, respectively. The shape of the bottom plate 100 and the upper plate 200 as viewed from above is substantially the same as the shape of the toilet seat 10 as viewed from above. That is, the shape of the bottom plate 100 and the upper plate 200 is viewed from above in a ring shape or a U shape. The opening portion 10a of the toilet seat 10 is formed by the opening portion 100a of the bottom plate 100 and the opening portion 200a of the upper plate 200.

The bottom plate 100 has an inner circumferential support portion 110, an outer circumferential support portion 120, and a bottom plate base portion 130. The base plate base 130 has substantially the same thickness. For example, the front portion of the base plate base 130 is disposed along the horizontal direction. The rear portion of the bottom plate base 130 is inclined upward. A support leg 131 that is in contact with the upper surface of the toilet 6 is suitably disposed on the bottom plate base 130. The inner peripheral support portion 110 is provided on the inner peripheral side of the toilet seat 10 with respect to the bottom plate base portion 130. The outer peripheral support portion 120 is provided on the outer peripheral side of the toilet seat 10 with respect to the bottom plate base portion 130.

The upper plate 200 has an inner peripheral side wall portion 210, an outer peripheral side wall portion 220, and a seating portion 230. The seat portion 230 supports the buttocks of the user seated on the toilet seat 10 from below. The seat portion 230 is supported from below by the inner peripheral side wall portion 210 and the outer peripheral side wall portion 220. The inner peripheral side wall portion 210 is provided on the inner peripheral side of the toilet seat 10 with respect to the seat portion 230. The outer peripheral side wall portion 220 is provided on the outer peripheral side of the toilet seat 10 with respect to the seat portion 230.

As shown in FIG. 3, the inner peripheral side wall portion 210 and the outer peripheral side wall portion 220 are provided on the inner peripheral support portion 110 and the outer peripheral support portion 120, respectively. The lower end of the inner peripheral side wall portion 210 is joined to the inner peripheral support portion 110 by the joint member 310, and the lower end of the outer peripheral side wall portion 220 is joined to the outer peripheral support portion 120 by the joint member 320.

The bottom plate base 130 and the seating portion 230 are separated in the vertical direction. The inner peripheral side wall portion 210 and the outer peripheral side wall portion 220 are separated in the horizontal direction. Thereby, the toilet seat 10 is formed with an internal space S surrounded by the bottom plate 100 and the upper plate 200.

In the case where the toilet seat 10 has a U shape, the inner circumferential support portion 110 and the outer circumferential support portion 120 may be connected to the periphery of the bottom plate base portion 130. The inner peripheral side wall portion 210 and the outer peripheral side wall portion 220 may be connected to the periphery of the seating portion 230. In this case, the joint member 310 and the joint member 320 are continuous around the base plate base 130, and may be integrally provided.

The toilet seat 10 has a first surface S1 and a second surface S2 as shown in FIG. The first surface S1 includes, for example, a surface of the inner peripheral side wall portion 210, a surface of the outer peripheral side wall portion 220, and a surface of the seating portion 230. The second surface S2 includes, for example, a bottom surface of the bottom plate 100, an exposed surface of the joint member 310, and the joint member 320. That is, the first surface S1 has an arc shape, and the second surface S2 is substantially parallel to the horizontal direction.

Fig. 4 is a cross-sectional view showing a portion of the cross section of Fig. 3 enlarged. 4(a) shows a part of the inner circumferential support portion 110 and a part of the inner circumferential side wall portion 210. 4(b) shows a part of the outer peripheral support portion 120 and a part of the outer peripheral side wall portion 220.

In the present specification, the direction from the internal space S toward the upper plate 200 in the horizontal direction is referred to as "outside", and the direction from the upper plate 200 toward the internal space S in the horizontal direction is referred to as "inside". In FIG. 4(a), the inner side IW and the outer side OW are shown on the basis of the inner peripheral side wall portion 210. In FIG. 4(b), the inner side IW and the outer side OW are shown on the basis of the outer peripheral side wall portion 220.

As shown in Fig. 4 (a) and Fig. 4 (b), the first surface S1 is directed to the side. The second surface S2 is connected to the lower end of the first surface S1 and faces downward. For example, the upper plate 200 (first member) has a part of the first surface S1 and the second surface S2. The bottom plate 100 (second member) has the other portion of the second surface S2.

Specifically, the first surface S1 has a wall surface WSa and a wall surface WSb along the vertical direction. The wall surface WSa and the wall surface WSb may be parallel to the vertical direction, and may be slightly inclined in the vertical direction. The inclination of the wall surface WSa and the wall surface WSb in the vertical direction is preferably 10 degrees or less. The first surface S1 further includes an inclined surface ISa provided below the wall surface WSa and an inclined surface ISb provided below the wall surface WSb.

The second surface S2 is connected to the lower end of the inclined surface ISa and the lower end of the inclined surface ISb. The second surface S2 may be parallel to the horizontal direction and may be slightly inclined in the horizontal direction. The inclination of the second surface S2 in the horizontal direction is preferably 10 degrees or less.

The second surface S2 has a water-repellent region R1 and a water-repellent region R2. The water-repellent area R1 and the water-repellent area R2 are, for example, provided on a part of the second surface S2. The water-repellent area R1 and the water-repellent area R2 are more water-repellent than the first surface S1. The water-repellent area R1 and the water-repellent area R2 are more water-repellent than other areas of the second surface S2.

A specific structure of the bottom plate 100 and the upper plate 200 having the above surface characteristics will be described. As shown in FIG. 4(a), the inner peripheral support portion 110 has an inner rib 111 and an outer rib 112. The inner peripheral side wall portion 210 has a side wall base portion 211, an insertion portion 212, a hanging portion 213, and a recess portion 214.

The inner rib 111 and the outer rib 112 protrude upward. The inner rib 111 is, for example, facing the inner space S. The outer rib 112 is provided outside the inner rib 111 and separated from the inner rib 111. Thereby, a recessed portion 214 that is recessed downward is formed between the inner rib 111 and the outer rib 112.

The thickness of the side wall base portion 211 in the vertical direction is substantially constant. For example, the thickness of the side wall base 211 is larger than the thickness of other portions of the inner peripheral side wall portion 210. The insertion portion 212 is provided below the inner side wall portion 210 and below the side wall base portion 211. The insertion portion 212 is provided between the inner rib 111 and the outer rib 112 to abut against the inner circumferential support portion 110. In other words, the inner peripheral support portion 110 and the inner peripheral side wall portion 210 are provided with a concavo-convex structure that is fitted in the vertical direction.

When the user sits on the seat portion 230, a part of its load is applied to the inner peripheral side wall portion 210. At this time, the load transmitted to the insertion portion 212 is supported from below by the inner circumferential support portion 110. The protruding portion 140 is located outside the inner circumferential support portion 110 and protrudes outward toward the inner circumferential support portion 110.

The hanging portion 213 is provided below the outer side wall portion 210 and extends downward. The hanging portion 213 is provided outside the insertion portion 212 and is separated from the insertion portion 212. Thereby, a recessed portion 214 that is recessed upward is formed between the insertion portion 212 and the hanging portion 213. The outer rib 112 is disposed between the insertion portion 212 and the hanging portion 213 and is located in the recess portion 214.

The protruding portion 140 is located below the recess 214 and is separated from the recess 214 in the vertical direction. The hanging portion 213 is separated from the outer rib 112 in the horizontal direction. The lower end of the hanging portion 213 is separated from the protruding portion 140 in the horizontal direction. The members are separated in the vertical direction and the horizontal direction to form a space. In this space, a joint member 310 that joins the inner peripheral support portion 110 and the inner peripheral side wall portion 210 is provided.

The joint member 310 has an exposed surface 310a exposed to the outside. The exposed surface 310a is, for example, at the same height as the bottom surface of the protruding portion 140 and the lower end of the hanging portion 213. The exposed surface 310a is provided between the bottom surface of the protruding portion 140 and the lower end of the hanging portion 213. That is, the bottom surface of the protruding portion 140, the exposed surface 310a, and the lower end of the hanging portion 213 are, for example, arranged in surface alignment in the horizontal direction.

As shown in FIG. 4(b), the outer peripheral support portion 120 has an inner rib 121 and an outer rib 122. The outer peripheral side wall portion 220 has a side wall base portion 221, an insertion portion 222, a hanging portion 223, and a concave portion 224. The structure in the vicinity of the joint member 320 of the outer peripheral support portion 120 and the outer peripheral side wall portion 220 is, for example, substantially symmetrical with respect to the structure in the vicinity of the joint member 310 of the inner peripheral support portion 110 and the inner peripheral side wall portion 210 in the horizontal direction.

That is, the insertion portion 222 is provided between the inner rib 121 and the outer rib 122, and is supported from below by the outer circumferential support portion 120. The protruding portion 150 is located outside the outer peripheral support portion 120. The protruding portion 150 protrudes outward toward the outer peripheral support portion 120.

The protruding portion 150 is separated from the concave portion 224 in the vertical direction. The hanging portion 223 is separated from the outer rib 122 and the protruding portion 150 in the horizontal direction. A space surrounded by the protruding portion 150, the outer rib 122, the hanging portion 223, and the recess portion 224 is formed. In this space, a joint member 320 that joins the outer peripheral support portion 120 and the outer peripheral side wall portion 220 is provided.

The joint member 320 has an exposed surface 320a exposed to the outside. The exposed surface 320a is, for example, at the same height as the bottom surface of the protruding portion 150 and the lower end of the hanging portion 223. The exposed surface 320a is provided between the bottom surface of the protruding portion 150 and the lower end of the hanging portion 223. That is, the bottom surface of the protruding portion 150, the exposed surface 320a, and the lower end of the hanging portion 223 are, for example, surface-aligned in the horizontal direction.

That is, in the example shown in FIGS. 4(a) and 4(b), the inner peripheral side wall portion 210 has a wall surface WSa. The outer peripheral side wall portion 220 has a wall surface WSb. The second surface S2 is composed of a bottom surface of each of the inner circumferential support portion 110, the outer circumferential support portion 120, the bottom plate base portion 130, the vertical portion 213, and the vertical portion 223, an exposed surface 310a, and an exposed surface 320a. Further, for example, the exposed surface 310a and the exposed surface 320a function as the water-repellent region R1 and the water-repellent region R2, respectively.

The bottom plate 100, the upper plate 200, the joint member 310, and the joint member 320 are, for example, high in hydrophobicity such as polypropylene, ABS (Acrylonitrile-Butadiene-Styrene), PBT (Polybutylene Terephthalate), or a polycarbonate composite material. Resin. For example, the ratio of the resins contained in the joining member 310 and the joining member 320 is higher than the ratio of the resin contained in the bottom plate 100 and the upper plate 200. Thereby, water repellency is provided to the exposed surface 310a and the exposed surface 320a. These exposed surfaces function as the water-repellent area R1 and the water-repellent area R2.

Alternatively, the joining member 310 and the joining member 320 may further contain at least one of, for example, a cerium-oxygen grafted polypropylene, a silicone rubber, and a silicone resin oil, in addition to the above-described resin. By including the materials in the joining member 310 and the joining member 320, the water repellency of the exposed surface 310a and the exposed surface 320a can be further improved. Alternatively, a material having water repellency may be applied to the exposed surface 310a and the exposed surface 320a to form the water-repellent region R1 and the water-repellent region R2. In this case, in addition to the exposed surface 310a and the exposed surface 320a, a material having water repellency may be applied to at least a part of the other bottom surface 100b of the bottom plate 100. Even a material having a water repellency for the overall coating of the bottom surface 100b may be used. The material to be coated contains, for example, at least one of a neon-based resin and a fluorine-based resin. In other words, the water-repellent region R1 and the water-repellent region R2 are preferably at least one of a cerium-oxygen resin, a fluorine-based resin, a cerium-oxygen grafted polypropylene, a silicone rubber, and a silicone resin oil. Thereby, the water repellency of the water-repellent area R1 and the water-removing area R2 can be further improved.

The bottom plate 100 and the upper plate 200 may contain at least one of a hafnium-grafted polypropylene, a silicone rubber, and a silicone resin oil. In this case, the ratio of the materials contained in the joining member 310 and the joining member 320 is made higher than the ratio of the materials contained in the bottom plate 100 and the upper plate 200. Thereby, the water repellency of the exposed surface 310a and the exposed surface 320a can be made higher than the water repellency of the first surface S1. At least one of a neodymium-based resin and a fluorine-based resin may be used on the surface of the first surface S1. In this case, the ratio of the materials applied to form the water-repellent region R1 and the water-repellent region R2 is higher than the ratio of the material on the first surface S1. Thereby, the water-repellent region R1 and the water-repellent region R2 can be formed in at least a part of the second surface S2.

Further, the water-repellent region R1 and the water-repellent region R2 may have a fine concavo-convex structure for blocking water on the surface. Fig. 5 is a cross-sectional view showing the surface structure of a water-repellent region of the toilet seat according to the embodiment.

For example, as shown in FIG. 5(a), a plurality of grooves T are provided in the water-repellent region R1 and the water-repellent region R2. The side wall of the trench T is substantially parallel to the vertical direction. The pitch of the groove T is, for example, 5 μm or more and 20 μm or less. In other words, the sum of the width W1 of the projection P between the grooves T and the width W2 of the groove T is, for example, 5 μm or more and 20 μm or less. The ratio (W2/W1) of the width W1 of the protrusion P to the width W2 of the groove T is, for example, 2 or less.

Alternatively, as shown in FIG. 5(b), the side wall of the groove T may be inclined in the vertical direction. Also in this case, the pitch of the grooves T is, for example, 5 μm or more and 20 μm or less. That is, between the grooves T, the protrusion P having the highest height is provided every 5 μm or more and 20 μm or less.

Fig. 6 is a cross-sectional view showing a manufacturing process of the toilet seat according to the embodiment. FIG. 6 shows a part of the inner circumferential support portion 110 and a part of the inner circumferential side wall portion 210. As described above, the structure in the vicinity of the joint member 320 of the outer peripheral support portion 120 and the outer peripheral side wall portion 220 is substantially the same as the structure in the vicinity of the joint member 310 of the inner peripheral support portion 110 and the inner peripheral side wall portion 210, respectively. Therefore, a part of the inner circumferential support portion 110 and a part of the inner circumferential side wall portion 210 will be exemplified here to describe the manufacturing process of the toilet seat 10.

First, the upper plate 200 is placed with the seating portion 230 facing downward, and the bottom plate 100 is placed above the upper plate 200. At this time, as shown in FIG. 6, the inner peripheral side wall portion 210 is in contact with the inner peripheral support portion 110, and the inner peripheral support portion 110 is disposed such that a gap is formed between the protruding portion 140 and the hanging portion 213. Above the inner peripheral side wall portion 210.

In this state, the mold M1 is disposed on the side of the upper plate 200, and the bottom plate 100 is pressed from above by the mold M2. In the mold M2, a gate G for injecting a resin as the joint member 310 is provided. The mold M2 is placed on the upper plate 200 such that the gate G is positioned in the gap between the protruding portion 140 and the hanging portion 213.

In this state, the heated resin is injected from the gate G to the gap between the protruding portion 140 and the hanging portion 213. When the heated resin is injected into the gap, the surface of the bottom plate 100 and the upper plate 200 that is in contact with the resin is melted by heat and mixed with the resin. Thereafter, the resin is cooled and hardened, thereby joining the bottom plate 100 and the upper plate 200.

At this time, the resin to be injected by heating is bonded to the bottom plate 100 and the upper plate 200 by using a resin material that exhibits water repellency. Thereby, water repellency can be given to the exposed surface 310a. Alternatively, the mold M2 is formed with a fine concavo-convex structure formed on the surface facing the water-repellent region R1. Thereby, an uneven structure is formed on the surface of the exposed surface 310a, and water repellency may be provided. Even after the resin is cured, a material having water repellency may be applied to the exposed surface 310a or the like. After the bottom plate 100 is joined to the upper plate 200, the chamfering of the lower end of the hanging portion 213 or the deburring of the resin or the like may be appropriately performed. According to the above, the toilet seat 10 of the embodiment is produced.

The effect of the embodiment will be described. In the following description, the wall surface WSa and the wall surface WSb of the first surface S1 are collectively referred to as a wall surface WS. The inclined surface ISa and the inclined surface ISb are collectively referred to as an inclined surface IS.

When water droplets adhere to the wall surface WS of the upper plate 200, the water droplets flow through the wall surface WS and flow downward. When the water droplet reaches the lower end of the first surface S1, it may surround the second surface S2. When the water droplets are spread around the second surface S2 and spread on the second surface S2, the dirt such as dust contained in the water droplets spreads on the second surface S2. Then, when the water droplets spread on the second surface S2, the range in which the second surface S2 must be cleaned is widened, and the cleaning property of the toilet seat 10 is lowered.

On the other hand, the toilet seat 10 of the present embodiment has the water-repellent region R1 and the water-repellent region R2 on the second surface S2. The water-repellent area R1 and the water-repellent area R2 prevent the water droplets flowing from the first surface S1 to the second surface S2 from expanding on the second surface S2. The water-repellent area R1 and the water-repellent area R2 are more water-repellent than the first surface S1. Therefore, the water droplets flowing to the lower end of the first surface S1 are blocked from the water-repellent region R1 and the water-repellent region R2 while being wound around the second surface S2, and are dropped from the toilet seat 10. Therefore, according to the present embodiment, it is difficult for the dirt contained in the water droplets to spread over the second surface S2. Since it is not necessary to clean the wide range of the second surface S2 at the time of cleaning, the cleaning property of the toilet seat 10 can be improved.

7 and 8 are cross-sectional views showing a part of a toilet seat according to an embodiment. 7(a) and 8(a) show a part of the inner circumferential support portion 110 and a part of the inner circumferential side wall portion 210. 7(b) and 8(b) show a part of the outer peripheral support portion 120 and a part of the outer peripheral side wall portion 220.

In order to prevent the water droplets from spreading on the second surface S2, the water-repellent region R1 is preferably located on the surface of the toilet seat 10 directly below the inner peripheral side wall portion 210. The water-repellent area R2 is preferably on the surface of the toilet seat 10, and is located directly below the outer peripheral side wall portion 220. In other words, as shown in FIG. 7(a), the horizontal distance D1 between the wall surface WSa and the water-repellent region R1 is equal to or less than the thickness T1 of the inner peripheral side wall portion 210. As shown in FIG. 7(b), the horizontal distance D2 between the wall surface WSb and the water-repellent region R2 is equal to or less than the thickness T2 of the outer peripheral side wall portion 220. According to this configuration, it is possible to prevent the water droplets from spreading to the inner side of the bottom surface 100b (the area immediately below the internal space S). Thereby, the cleaning property of the toilet seat 10 can be improved. The thickness T1 is, for example, the thickness in the horizontal direction of the side wall base 211 whose thickness is substantially fixed in the inner peripheral side wall portion 210. The thickness T2 is, for example, a thickness in the horizontal direction of the side wall base 221 whose thickness is substantially fixed in the outer peripheral side wall portion 220.

Preferably, the water-repellent region R1 is located outside the center plane C1 of the inner peripheral side wall portion 210. The water-repellent region R2 is located outside the center plane C2 of the outer peripheral side wall portion 220. The center surface C1 is a surface obtained by connecting the center points of the thicknesses to the inner peripheral side wall portion 210. The center surface C1 is obtained, for example, from the side wall base 211 having substantially the same thickness. Similarly, the center surface C2 is a surface obtained by connecting the center points of the thicknesses to the outer peripheral side wall portion 220. The center surface C2 is obtained, for example, from the side wall base 221 having substantially the same thickness. In other words, the distance D1 is 0.5 times or less the thickness T1, and the distance D2 is preferably 0.5 times or less the thickness T2. According to this configuration, the range in which the water droplets spread in the bottom surface 100b can be made narrower. Thereby, the cleaning property of the toilet seat 10 can be further improved.

For example, in the case where the toilet seat is placed on the toilet and the bottom of the toilet seat is wiped for cleaning, a typical toilet and toilet seat can allow the finger to enter about 2 mm from the end edge. Therefore, the distance D3 between the water-repellent region R1 and the lower end of the first surface S1 and the distance D4 between the water-repellent region R2 and the lower end of the first surface S1 are preferably 2 mm or less. According to this configuration, the water droplets surrounding the second surface S2 can be dripped. Further, according to this configuration, even in the case where the water remains on the second surface S2, it adheres only to the range in which the wiping is easy to wipe. Therefore, the toilet seat 10 can be easily cleaned, and the cleaning property of the toilet seat 10 can be improved.

The width W3 of the exposed surface 310a and the width W4 of the exposed surface 320a are, for example, 1 mm. When the exposed surface 310a and the exposed surface 320a function as a water-repellent area, the distance D3 may be equal to or smaller than the width W3, and the distance D4 may be equal to or smaller than the width W4. Similarly, according to this configuration, even in the case where water remains on the second surface S2, it adheres only to the range in which the wiping is easy to wipe. Therefore, the toilet seat 10 can be easily cleaned, and the cleaning property of the toilet seat 10 can be improved.

It is also possible to provide a water-repellent area in the entire surface of the second surface S2. In this case, the distance between the water-repellent area and the lower end of the first surface S1 is 0 mm. This form also includes a form in which the distance between the water-repellent region and the lower end of the first surface S1 is 2 mm or less.

The second surface S2 may be directly connected to the lower end of the wall surface WS. It is preferable to provide the inclined surface IS between the second surface S2 and the wall surface WS. Preferably, the inclined surface IS inclined in the horizontal direction and the vertical direction is provided, and the second surface S2 is connected to the inclined surface IS. Thereby, the water droplets flowing through the wall surface WS easily surround the second surface S2 without staying at the lower end of the first surface S1. Further, the water droplets around the second surface S2 are dropped by the water-repellent region R1 and the water-repellent region R2. Thus, according to this configuration, it is difficult for the water droplets to stay on the surface of the toilet seat 10. It is possible to suppress the adhesion of the water droplets to the toilet seat 10. Therefore, the cleaning property of the toilet seat 10 can be further improved.

As shown in Fig. 8(a), the inclined surface ISa may be curved to be smoothly connected to the wall surface WSa and the second surface S2. As shown in FIG. 8(b), the inclined surface ISb may be curved to be smoothly connected to the wall surface WSb and the second surface S2.

In this case, the point at which the bottom surface 100b starts to incline corresponds to the lower end of the inclined surface ISa and the lower end of the inclined surface ISb. That is, the points correspond to the lower end of the first surface S1. Similarly, the point at which the wall surface WSa starts to incline corresponds to the upper end of the inclined surface ISa. The point at which the wall surface WSb starts to incline corresponds to the upper end of the inclined surface ISb.

The inclined surface ISa and the inclined surface ISb are curved, whereby the water droplets are more easily surrounded from the first surface S1 to the second surface S2. As a result, the water droplets are easily blocked by the water-repellent regions R1 and R2 of the second surface S2 and dripped. The cleaning property of the toilet seat 10 can be further improved.

The water-repellent region R1 and the water-repellent region R2 include, for example, at least one of a neodymium-based resin, a fluorine-based resin, a cerium-oxygen grafted polypropylene, a silicone rubber, and a silicone resin oil. Thereby, the water-removing area R1 and the water-removing area R2 have water repellency. Alternatively, the water-repellent area R1 and the water-repellent area R2 have a concavo-convex structure on the surface. Water repellency is imparted by the uneven structure.

When the water repellency is imparted by the uneven structure or the like, there is a possibility that the water absorbing structure is deformed or damaged by the use of the toilet seat 10, and the water repellency is lowered. By imparting water repellency with a material, it is possible to suppress a decrease in water repellency. Or, in the case where the water repellency is imparted by the characteristics of the material, there is a possibility that the material changes due to the passage of time or the surrounding environment, and the water repellency is lowered. By providing water repellency in a concavo-convex structure, it is possible to suppress a decrease in water repellency. In addition, the water-repellent area R1 and the water-repellent area R2 may contain a material having water repellency and may have a concavo-convex structure on the surface. In this way, the water repellency of the water-repellent area R1 and the water-removing area R2 can be further improved.

For example, the exposed surface 310a of the joint member 310 and the exposed surface 320a of the joint member 320 function as the water-repellent region R1 and the water-repellent region R2. The water-repellent area R1 and the water-repellent area R2 can be formed together, for example, when the joint member 310 and the joint member 320 are formed. Thereby, the manufacture of the toilet seat 10 is facilitated. The joint member 310 and the joint member 320 are the joint base plate 100 and the upper plate 200. Therefore, it is provided close to the lower end of the wall surface WSa and the lower end of the wall surface WSb (the end of the second surface S2). The exposed surface 310a and the exposed surface 320a function as the water-repellent area R1 and the water-repellent area R2, whereby the water droplets flowing through the wall surface WSa and the wall surface WSb can be effectively prevented from expanding on the second surface S2.

(First Modification) FIG. 9 is a cross-sectional view showing a part of a toilet seat according to a first modification of the embodiment. FIG. 9 shows a part of the inner circumferential support portion 110 and a part of the inner circumferential side wall portion 210.

As shown in Fig. 9(a), the exposed surface 310a may be recessed upward. In this case, the exposed surface 310a is positioned above the bottom surface 100b of the bottom plate 100, for example, and is positioned above the lower end of the vertical portion 213. In other words, the water-repellent region R1 of the second surface S2 may be positioned above the other regions of the second surface S2.

Alternatively, as shown in FIG. 9(b), the exposed surface 310a may be raised downward. In this case, the exposed surface 310a is located, for example, below the bottom surface 100b of the bottom plate 100, and is located below the lower end of the vertical portion 213. In other words, the water-repellent region R1 of the second surface S2 may be positioned below the other regions of the second surface S2.

Although the exposed surface 310a has been described, the same applies to the exposed surface 320a. In other words, the exposed surface 320a (the water-repellent region R2) may be positioned above the other regions of the second surface S2. The exposed surface 320a (the water-repellent area R2) may be positioned below the other areas of the second surface S2.

As shown in FIGS. 9(a) and 9(b), a slight level difference may be formed between the water-repellent region R1 and the water-repellent region R2 and other regions of the second surface S2. Also in this configuration, by providing the water-repellent region R1 and the water-repellent region R2, the expansion of the water droplet on the second surface S2 can be suppressed. When the water-repellent region R1 and the water-repellent region R2 are recessed upward for the other regions of the second surface S2, the water droplets surrounding the second surface S2 extend over the water-repellent region R1 and the water-repellent region R2 to the second surface. The possibility of S2. When the water-repellent region R1 and the water-repellent region R2 are recessed downward toward the other region of the second surface S2, the water droplets surrounding the second surface S2 may not be blocked by the water-repellent region R1 and the water-repellent region R2. Sex. As a result, it is easy to stay in the vicinity of the water-repellent areas. On the second surface S2, if there is a difference in height between the water-repellent region R1 and the water-repellent region R2 and other regions, it is difficult to wipe off water droplets or dirty near the water-repellent region when cleaning the second surface S2. Sewage. It is easy to accumulate dirt near the water-removing area. As shown in Fig. 4, it is preferable that the water-removing area R1 and the water-removing area R2 are smoothly connected to the areas other than the water-repellent areas on the surface of the toilet seat 10. According to this configuration, it is possible to effectively suppress the case where the water droplets spread on the second surface S2. Further, according to this configuration, even if the water droplets are not dripped, it is easy to wipe off water droplets or dirt. Therefore, according to this configuration, it is less likely to remain dirty on the second surface S2 and the dirt on the second surface S2 can be easily wiped off. The cleaning property of the toilet seat 10 can be further improved. The fact that a plurality of regions are smoothly connected, for example, means that no height difference is formed between a plurality of regions, and a state in which the regions are formed without corners or depressions is formed.

(Second Modification) FIG. 10 and FIG. 11 are cross-sectional views showing a part of a toilet seat according to a second modification of the embodiment. 10(a) and 11(a) show a part of the inner circumferential support portion 110 and a part of the inner circumferential side wall portion 210. FIGS. 10(b) and 11(b) show a part of the outer peripheral support portion 120 and a part of the outer peripheral side wall portion 220.

In the toilet seat according to the present modification, as shown in FIG. 10(a), the water-repellent region R1 is provided on the inclined surface ISa of the first surface S1. As shown in FIG. 10(b), the water-repellent region R2 is provided on the inclined surface ISb of the first surface S1. The water-repellent area R1 and the water-repellent area R2 are located on the surface of the toilet seat 10, directly below the inner peripheral side wall portion 210 and directly below the outer peripheral side wall portion 220.

For example, when the water-repellent region R1 is provided in the wall surface WSa along the vertical direction, the water droplet flowing on the wall surface WSa stops in the water-repellent region R1. Dirty is likely to adhere to the wall surface WSa. On the other hand, in the case where the water-repellent region R1 is provided on the inclined surface ISa that faces downward from the wall surface WSa, the water droplet is easily surrounded from the wall surface WSa to the inclined surface ISa. In addition, the water droplets are easily blocked by the water-repellent area R1 and dripped. Similarly, by providing the water-repellent region R2 on the inclined surface ISb, it is easy to drip the water droplets. Therefore, according to the present modification, it is difficult to spread the dirt contained in the water droplets on the second surface S2, and the cleaning property of the toilet seat 10 can be improved.

The water-repellent area R1 may be provided only in a part of the inclined surface ISa. The water-repellent area R1 may be provided on the entire inclined surface ISa. The water-repellent area R2 may be provided only in a part of the inclined surface ISb. The water-repellent area R2 may be provided on the entire inclined surface ISb. As shown in FIGS. 10(a) and 10(b), a part of the water-repellent region R1 and a part of the water-repellent region R2 may be provided on the second surface S2.

As shown in Fig. 11 (a) and Fig. 11 (b), the inclined surface ISa and the inclined surface ISb may be curved. According to this configuration, similarly to the structures shown in FIGS. 8( a ) and 8 ( b ), it is easier to surround the water droplet from the first surface S1 to the second surface S2 . Thereby, the cleaning property of the toilet seat 10 can be further improved.

In the toilet seat according to the present modification, as shown in FIG. 9(a), the exposed surface 310a and the exposed surface 310b may be recessed upward. Alternatively, as shown in FIG. 9(b), the exposed surface 310a and the exposed surface 310b may be raised downward. However, as described above, in order to improve the cleaning property of the toilet seat 10, it is preferable that the water-repellent region R1 and the water-repellent region R2 are smoothly connected to the regions other than the water-repellent regions of the first surface.

The water repellency of the water-repellent region R1 and the water repellency of the first surface S1 can be compared, for example, by the following method. The toilet seat 10 is placed with the water-repellent area R1 facing vertically upward. A plurality of water droplets are dropped on the water-removing area R1. The contact angle of the water drop falling on the water-repellent region R1 to the horizontal plane is measured. For example, the contact angles of the 10 water droplets are measured and the average is calculated. Next, the toilet seat 10 is placed with the wall surface WSa of the first surface S1 facing vertically upward. A plurality of water droplets are dropped on the wall surface WSa. The contact angle of the water drop falling on the wall surface WSa to the horizontal plane was measured. For the same number of water droplets as when measuring the contact angle of the water-repellent region R1, the contact angles were measured and the average was calculated. The average value of the contact angle of the water-repellent region R1 is compared with the average value of the contact angle of the first surface S1. The side with a larger contact angle has higher water repellency. The water repellency of the water-repellent region R2 and the water repellency of the first surface S1 can also be compared by this method.

The embodiments of the present invention have been described above. However, the invention is not limited to the descriptions. The above-described embodiments are included in the scope of the present invention as long as they are provided with appropriate design changes by those skilled in the art. For example, the shape, size, material, arrangement, installation form, and the like of the respective components provided in the bottom plate 100 and the upper plate 200 are not limited to the examples, and can be appropriately changed. Further, each of the elements of the above-described embodiments may be combined as long as it is technically possible, and the combination of these features is included in the scope of the present invention as long as it contains the features of the present invention.

100‧‧‧floor

100b‧‧‧ bottom

110‧‧‧ Inner Week Support

111‧‧‧ inside rib

112‧‧‧Outer ribs

120‧‧‧Outer support

121‧‧‧Inside rib

122‧‧‧Outer ribs

130‧‧‧ base of base plate

140‧‧‧Protruding

150‧‧‧Protruding

210‧‧‧ inner peripheral side wall

211‧‧‧ sidewall base

212‧‧‧ Insertion Department

213‧‧‧垂下

214‧‧‧ recess

220‧‧‧ peripheral wall

221‧‧‧ sidewall base

222‧‧‧ Insertion Department

223‧‧‧垂下

224‧‧‧ recess

310‧‧‧Joining components

310a‧‧‧ exposed face

320‧‧‧Joining members

320a‧‧‧ exposed face

S‧‧‧Internal space

S1‧‧‧ first surface

S2‧‧‧ second surface

WSa‧‧‧ wall

WSb‧‧‧ wall

ISa‧‧‧ sloped surface

ISb‧‧‧ sloped surface

Above UW‧‧

OW‧‧‧ outside

IW‧‧‧ inside

Below DW‧‧‧

Fig. 1 is a perspective view showing a toilet device including a toilet seat according to an embodiment. Fig. 2 is an exploded perspective view showing the toilet seat of the embodiment. Fig. 3 is a perspective cross-sectional view showing a part of a toilet seat according to an embodiment. Fig. 4 is a cross-sectional view showing a portion of the cross section of Fig. 3 enlarged. Fig. 5 is a cross-sectional view showing the surface structure of a water-repellent region of the toilet seat according to the embodiment. Fig. 6 is a cross-sectional view showing a manufacturing process of the toilet seat according to the embodiment. Fig. 7 is a perspective cross-sectional view showing a part of a toilet seat according to an embodiment. Fig. 8 is a perspective cross-sectional view showing a part of a toilet seat according to an embodiment. Fig. 9 is a cross-sectional view showing a part of a toilet seat according to a first modification of the embodiment. Fig. 10 is a cross-sectional view showing a part of a toilet seat according to a second modification of the embodiment. Fig. 11 is a cross-sectional view showing a part of a toilet seat according to a second modification of the embodiment.

Claims (9)

A toilet seat comprising: a side wall portion having a wall surface along a vertical direction; and a bottom plate joined to the side wall portion and having a bottom surface facing downward, and a water-repellent region having a water repellency higher than the wall surface a surface directly below the side wall portion. The toilet seat according to claim 1, wherein at least a part of the water-repellent region is located outside the center surface of the side wall portion. The toilet seat according to claim 1 or 2, wherein the water-repellent area and the area other than the water-repellent area of the surface are smoothly connected. The toilet seat according to any one of claims 1 to 3, further comprising: a joining member that joins the side wall portion and the bottom plate, and has an exposed surface exposed to the outside, wherein the exposed surface is the dialing The water area comes to function. A toilet seat comprising: a first surface having a wall surface along a vertical direction; an inclined surface connected to a lower end of the wall surface and facing downward from the wall surface; and a second surface connected to the inclined surface and facing Below, on the inclined surface, a water-repellent area having a higher water repellency than the wall surface is provided. The toilet seat according to claim 5, wherein the water-repellent area and the area other than the water-repellent area of the first surface are smoothly connected. The toilet seat according to claim 5 or 6, comprising: a first member having the first surface; a second member having at least a part of the second surface; and a joining member for the first member The second member is joined to the second member, and has an exposed surface exposed to the outside, and the exposed surface functions as the water-repellent region. The toilet seat according to any one of claims 1 to 7, wherein the water-repellent region contains: a neodymium-based resin, a fluorine-based resin, a cerium-oxygen grafted polypropylene, a silicone rubber, and a silicone resin. Any of the oils. The toilet seat according to any one of claims 1 to 8, wherein the water-repellent region has a concavo-convex structure on the surface.