JP2021173138A - Drainage cover - Google Patents

Abstract

To provide a drainage cover that can prevent hair from getting entangled on both legs of a bathtub side and washing area side of the drainage cover.SOLUTION: The drainage cover comprises: a lid part that covers a drainage recess part formed in a bathroom washing area floor, including a bathtub and a washing area floor; and a plurality of leg parts that are provided on a lower surface of the lid part to support the lid part in contact with a mounting part composed of steps in the drainage recess part that descends from the floor surface of the washing area floor, wherein the plurality of the leg parts each has a bathtub side leg arranged close to a first peripheral side part of peripheral side parts of the lid part, that is arranged on the bathtub side, and a washing area side leg arranged close to a second peripheral side part of the peripheral side parts of the lid part, that is arranged on a side opposite to the first peripheral side part, and an arrangement shape of the bathtub side leg with respect to the first peripheral side part is different from the arrangement shape of the washing area side leg with respect to the second peripheral side part.SELECTED DRAWING: Figure 5

Description

The present disclosure relates to a drain cover.

Conventionally, there is known a drainage structure in which a hair catcher is arranged in a drainage recess provided adjacent to a bathtub on the floor of a washing place and the upper part of the hair catcher is covered with a drainage cover (see, for example, Patent Document 1).

The drainage recess on the washing floor is a box-shaped portion that is substantially rectangular in plan view. The bottom of the drainage recess is provided with an opening that connects to the drainage trap. At the four corners of the drainage recess, mounting portions of the drainage cover composed of upward steps are provided. The drainage cover has a lid portion made of a substantially rectangular plate-like body, and a plurality of leg portions arranged on the lower surface of the lid portion. The drainage cover is mounted in the drainage recess so that the legs are placed on the mounting portion, and the hair catcher is covered by the lid portion.

Japanese Unexamined Patent Publication No. 2011-226197

The water that flows from the floor surface of the washing place floor toward the drain outlet is the water that flows directly into the drainage recess from the floor surface through the gap between the drain cover and the drainage recess, and the water that flows from the floor surface toward the bathtub and then the bathtub. It flows along the lower part of the apron and separates from the water flowing into the drainage recess from the bathtub side. If the water contains hair, the hair may get entangled with the legs arranged on the bathtub side and the washing place side of the drain cover.

In general, the amount of water flowing into the drainage recess from the bathtub side is smaller than that of the water directly flowing into the drainage recess from the floor surface of the washing place floor, and the water force is weak, so that the water tends to stay in the drainage recess. Therefore, the legs of the drain cover that are arranged on the bathtub side are more likely to be entangled with hair than the legs that are arranged on the washing area side. Therefore, there is a need for a drainage cover that can prevent hair from getting entangled on both the bathtub side and the washing place side of the drainage cover.

The drainage cover according to the present disclosure is provided on the lower surface of the lid portion and the lid portion covering the drainage recess formed in the washroom floor of the bathroom including the bathtub and the washroom floor, and is lowered from the floor surface of the washroom floor. A plurality of legs that come into contact with a mounting portion formed by a step portion in the drainage recess to support the lid portion, and the plurality of legs are provided on the peripheral side portion of the lid portion. On the side of the bathtub side leg portion arranged close to the first peripheral side portion arranged on the bathtub side and the side of the peripheral side portion of the lid portion opposite to the first peripheral side portion. The arrangement shape of the bathtub side leg portion with respect to the first peripheral side portion and the second peripheral side portion including the washing place side leg portion arranged close to the second peripheral side portion to be arranged. The arrangement shape of the washing place side leg is different from that of the above.

It is a perspective view which shows the appearance of the washing place floor including a drainage structure. It is sectional drawing which shows the drainage structure. It is a perspective view which shows the appearance of the drainage recess provided in the washing place floor. It is a perspective view which looked at the drainage cover from the bottom. It is a bottom view of the drainage cover. It is a figure explaining the flow of water toward a drainage cover. It is a bottom view which shows the part of one washing place side leg of a drainage cover. It is a figure explaining the flow of water in one washing place side leg of a drainage cover. It is a bottom view which shows one bathtub side leg of a drainage cover. It is a figure explaining the flow of water in one bathtub side leg of a drainage cover. It is a bottom view which shows the modification of the drainage cover. It is a bottom view which shows the modification of the drainage cover. It is a bottom view which shows the modification of the drainage cover. It is a bottom view which shows the modification of the drainage cover. It is a bottom view which shows the modification of the drainage cover. It is a bottom view which shows the modification of the drainage cover. It is a bottom view which shows the modification of the drainage cover. It is a bottom view which shows the modification of the drainage cover. It is a bottom view which shows the modification of the drainage cover. It is a bottom view which shows the modification of the drainage cover.

Hereinafter, embodiments of the drainage cover according to the present disclosure will be described in detail with reference to the drawings. As shown in FIG. 1, the drainage device 1 is provided on the washing floor 100 having a rectangular shape in a plan view. The washroom floor 100 is arranged so that the long side portion 101 is in contact with the apron 201 of the bathtub 200.

The washing floor 100 has two long side portions 101 and 102 and two short side portions 103 and 103 that are erected above the outer periphery of the floor surface 100a having a rectangular shape in a plan view. One long side portion 101 is arranged so as to be in contact with the lower part of the apron 201 of the bathtub 200. The other long side portion 102 is arranged parallel to the long side portion 101 apart from the bathtub 200. The two short side portions 103 and 103 are arranged so as to intersect the long side portions 101 and 102, and the ends of the long side portions 101 and 102 are connected to each other.

The washing floor 100 has a gradient that descends from the long side portion 102 toward the long side portion 101, and a gradient that descends from the short side portions 103 and 103 toward the central portion of the long side portion 101. Further, the washing floor 100 has two bathtub-side drains 104 and 104 extending along the long side 101 on the bathtub 200 side. The bathtub-side drainage ditches 104 and 104 have slopes that descend from the short side portions 103 and 103 sides toward the central portion of the long side portion 101, respectively.

Most of the water that has fallen on the floor surface 100a of the washing place floor 100 flows toward the drainage device 1 arranged at the center of the long side portion 101 along the slope of the floor surface 100a. A part of the water that has fallen on the floor surface 100a of the washing place floor 100 flows toward the bathtub 200 and hits the long side portion 101 arranged under the apron 201 of the bathtub 200. The water that hits the long side portion 101 flows in the bathtub side drainage ditches 104 and 104 toward the drainage device 1.

As shown in FIGS. 1 and 2, the drainage device 1 includes a drainage recess 10 and a drainage cover 20. The drainage recess 10 is located at the downstream end of the gradient on the floor surface 100a of the washing place floor 100. Specifically, the drainage recess 10 is arranged at a substantially central portion in the length direction of the long side portions 101 and 102 and at a position close to the bathtub 200. More specifically, the drainage recess 10 is arranged close to the substantially central portion in the length direction of the long side portion 101 arranged on the bathtub side 200 side with the bathtub side drainage ditches 104 and 104 interposed therebetween. At the bottom of the drainage recess 10, a drainage port 11 that opens in a circular shape is provided. A cylindrical connection flange 12 is attached to the drain port 11. A hair catcher 13 is attached to the connection flange 12.

A trap portion 14 is provided below the connection flange 12. The water that has flowed into the drainage recess 10 from the washing place floor 100 flows into the trap portion 14 from the drainage port 11 and is discharged from the discharge port 15. The bathtub side connection portion 16 connected to the drain port (not shown) of the bathtub 200 is connected to the trap portion 14 via the pipe 17. Therefore, the water from the bathtub 200 also flows into the trap portion 14 and is discharged from the discharge port 15.

As shown in FIG. 3, the drainage recess 10 is formed in a substantially rectangular box shape in a plan view. The drainage port 11, the connection flange 12, and the hair catcher 13 are arranged at substantially the center of the bottom of the drainage recess 10. The two bathtub-side drainage ditches 104 and 104 of the washroom floor 100 communicate with the inside of the drainage recess 10 from the long side 101 side. A mounting portion 18 formed of a step portion that is one step lower than the floor surface 100a is provided around the drain port 11 arranged at the bottom of the drainage recess 10. The mounting portions 18 of the present embodiment are arranged at the four outer corners of the circular drainage port 11 at the bottom of the drainage recess 10.

As shown in FIG. 4, the drainage cover 20 has a rectangular plate-shaped lid portion 21 and a plurality of leg portions protruding from the lower surface 21a of the lid portion 21. The plurality of legs include a bathtub side leg 22 and a washing place side leg 23. The drainage cover 20 of the present embodiment has four legs of two bathtub side legs 22 and 22 and two washroom side legs 23 and 23. The bathtub side legs 22 and 22 and the washing area side legs 23 and 23 are arranged near the four corners of the lower surface 21a of the lid 21 corresponding to the mounting portion 18 of the drainage recess 10.

The lid portion 21 is formed to be slightly smaller than the drainage recess 10 in a plan view so as to fit in the drainage recess 10. The lid portion 21 has four peripheral portions 21b, 21c, 21d, 21e from the first to the fourth. The first peripheral side portion 21b is arranged on the bathtub 200 side when the drainage cover 20 is housed in the drainage recess 10, and extends substantially parallel to the long side portion 101 of the washing place floor 100. The second peripheral side portion 21c is arranged on the side of the drainage cover 20 opposite to the first peripheral side portion 21b, and extends substantially parallel to the first peripheral side portion 21b. The third peripheral side portion 21d and the fourth peripheral side portion 21e are arranged so as to connect the ends of the first peripheral side portion 21b and the second peripheral side portion 21c, and are arranged so as to connect the ends of the first peripheral side portion 21b and the second peripheral side portion 21c. It extends in a direction intersecting the portion 101.

The first peripheral side portion 21b of the lid portion 21 is provided with a positioning protrusion 24 projecting toward the bathtub 200 side at a position close to the third peripheral side portion 21d. The positioning protrusion 24 regulates the mounting direction of the drainage cover 20 with respect to the drainage recess 10. As a result, as shown in FIG. 6, the drainage cover 20 is properly housed in the drainage recess 10 when the positioning protrusion 24 is mounted on the drainage recess 10 with the positioning protrusion 24 facing the long side 101. It is composed.

As shown in FIG. 5, the two bathtub side legs 22 and 22 are close to the first peripheral side portion 21b of the lid portion 21 and are located on the third peripheral side portion 21d and the fourth peripheral side portion 21e. They are placed apart from each other so that they are close to each other. The bathtub side leg portion 22 has a horizontally long shape in which both ends are formed in an arc shape in a plan view of the lower surface 21a of the lid portion 21. The bathtub side leg portion 22 is formed so as to extend in a direction along the extending direction (left-right direction in FIG. 5) of the first peripheral side portion 21b. The length direction of the bathtub side leg 22 coincides with the extending direction of the bathtub side drainage ditches 104 and 104.

One end 22a, 22a of the bathtub side legs 22, 22 is arranged toward the third peripheral side portion 21d and the fourth peripheral side portion 21e, respectively, and the other end portions 22b, 22b face each other. Arranged to do. The ends 22a and 22a are located slightly retracted inward from the third peripheral side portion 21d and the fourth peripheral side portion 21e. The outer surfaces 23c and 23c of the bathtub side legs 22 and 22 arranged on the first peripheral side portion 21b side are located slightly retracted inward from the first peripheral side portion 21b. As shown in FIGS. 4 and 10, the outer side surfaces 22c and 22c are composed of concave surfaces that are recessed inward along the length direction. The two bathtub side legs 22 and 22 have the same shape and have a symmetrical shape in FIG. That is, as shown in FIG. 5, the two bathtub side legs 22 and 22 are the center lines of the lid portion 21 connecting the central portion of the first peripheral side portion 21b and the central portion of the second peripheral side portion 21c. It has a symmetrical shape with respect to X1.

The two washroom side legs 23, 23 are close to the second peripheral side portion 21c of the lid portion 21 farthest from the bathtub 200, and are close to the third peripheral side portion 21d and the fourth peripheral side portion 21e, respectively. They are placed apart from each other so that they do. As shown in FIG. 5, both ends of the washing area side leg portions 23, 23 are formed in an arc shape in a plan view of the lower surface 21a of the lid portion 21, and the second portion of the lid portion 21 is formed from the central portion of the lower surface 21a of the lid portion 21. It is formed so as to extend in a direction intersecting the corner portions 21f and 21f arranged at both ends of the peripheral side portion 21c of 2. That is, one end 23a, 23a of the washing place side legs 23, 23 is arranged so as to be close to the second peripheral side portion 21c, respectively, and the other end portions 23b, 23b are the third peripheral side portions. It is arranged so as to be close to the 21d and the fourth peripheral side portion 24e, respectively.

The outer surfaces 23c and 23c of the washing area side legs 23 and 23 face in the directions of the corner portions 21f and 21f of the lid portion 21, respectively. The washing area side legs 23, 23 are formed in an arc shape that is convex with respect to the outside, that is, with respect to the corner portions 21f, 21f in the cross section intersecting the height direction (the direction perpendicular to the paper surface in FIG. 5). Will be done.

As shown in FIG. 5, of the two washroom side legs 23, 23, one end 23a side of the washroom side leg portion 23 close to the third peripheral side portion 21d is the second peripheral side portion 21c. It is arranged so as to be in contact with. On the other hand, the other end portion 23b side of the washing place side leg portion 23 is in a position slightly retracted inward from the third peripheral side portion 21d. One end 23a side of the washing place side leg portion 23 close to the fourth peripheral side portion 21e is in a position slightly retracted inward from the second peripheral side portion 21c. On the other hand, the other end portion 23b side of the washing place side leg portion 23 is arranged so as to be in contact with the fourth peripheral side portion 21e. As shown in FIGS. 4 and 8, the outer surfaces 23c and 23c of the washing area side legs 23 and 23 form a concave surface that is recessed inward along the length direction.

As described above, in the plan view of the lower surface 21a of the lid portion 21, the drainage cover 20 has the arrangement shape of the bathtub side legs 22 and 22 with respect to the first peripheral side portion 21b and the washing place side with respect to the second peripheral side portion 21c. The arrangement shapes of the legs 23 and 23 are different. The bathtub side legs 22 and 22 have an arrangement shape in which the length direction is arranged along the extending direction of the first peripheral side portion 21b, and the washing place side legs 23 and 23 have an outer surface 23c. It has an arrangement shape that is arranged so as to face the corner portions 21f and 21f. The arrangement shape of the bathtub side legs 22 and 22 with respect to the first peripheral side portion 21b and the arrangement shape of the washing place side legs 23 and 23 with respect to the second peripheral side portion 21c have an asymmetrical shape in the vertical direction in FIG. Have. That is, as shown in FIG. 5, the two washroom side legs 23, 23 are the center lines of the lid portion 21 connecting the central portion of the third peripheral side portion 21d and the central portion of the fourth peripheral side portion 21e. It has an asymmetrical shape with respect to X2.

The drainage cover 20 is mounted in the drainage recess 10 so that the bathtub side legs 22 and 22 and the washing place side legs 23 and 23 are respectively placed in the mounting portions 18 in the drainage recess 10. As a result, as shown in FIG. 2, the drainage cover 20 is housed in the drainage recess 10 so as to be substantially flush with the floor surface 100a of the washing place floor 100.

Next, the operation of the drainage device 1 having the drainage cover 20 at the time of drainage will be described. As shown in FIG. 6, most of the water FL1 flowing through the floor surface 100a of the washing place floor 100 flows toward the drainage recess 10 along the gradient of the floor surface 100a. After that, the water FL1 flows into the drainage recess 10 through the gap between the second peripheral side portion 21c, the third peripheral side portion 21d and the fourth peripheral side portion 21e of the drainage cover 20, and the drainage recess 10. ..

The water flowing into the drainage recess 10 is the space S1, S1 between the bathtub side legs 22 and 22 and the washing area side legs 23 and 23 shown in FIGS. 4 and 5, and the two washing area side legs 23, It flows out to the drain port 11 through the space S2 between 23. However, the water flowing into the drainage recess 10 from the vicinity of the corner portions 21f and 21f at both ends of the second peripheral side portion 21c of the lid portion 21 hits the outer surfaces 23c and 23c of the washing place side legs 23 and 23. As shown in FIGS. 7 and 8, water is temporarily stored in the water storage portion 30 formed between the outer surface 23c of the washing place side leg 23 and the inner surface 10a of the drainage recess 10.

As shown by the arrows in FIGS. 7 and 8, the water temporarily stored in the water storage unit 30 flows laterally along the outer surface 23c of the washing place side leg 23, and the inner surface of the drainage recess 10 It smoothly flows from the end of the washing place side leg 23 having a large gap with 10a (one end 23a in FIGS. 7 and 8) through the spaces S1 and S2 to the drain port 11.

In this way, in the vicinity of the washing area side legs 23, 23, the water temporarily stored in the water storage unit 30 flows smoothly in the lateral direction along the outer surfaces 23c, 23c of the washing area side legs 23, 23. .. Therefore, it is possible to prevent the hair contained in the water from being entangled with the washing area side legs 23 and 23.

Since the washroom side legs 23, 23 are formed so as to extend from the central portion of the lid portion 21 in a direction intersecting the corner portions 21f, 21f of the lid portion 21, the lower portions of the corner portions 21f, 21f. It is easy to form a wide water storage unit 30. Therefore, it is difficult for the hair to adhere to the washing area side legs 23, 23.

The distance between the respective ends 23a and 23b of the washing place side legs 23 and 23 and the inner side surface 10a of the drainage recess 10 is the drainage in the middle part between both ends 23a and 23b of the washing place side legs 23 and 23. It is smaller than the distance between the inner side surface 10a of the recess 10 and the inner surface 10a. Therefore, a water storage portion 30 having a constant bottom surface can be formed below the corner portions 21f and 21f.

Since the outer surfaces 23c and 23c of the washing place side legs 23 and 23 are formed by concave surfaces, a wider space for the water storage portion 30 is secured. The water flowing laterally along the outer side surfaces 23c and 23c forms a water film on the outer side surfaces 23c and 23c. Therefore, the hair is further prevented from adhering to the washing area side legs 23, 23, and the discharge of the hair from the water storage unit 30 is promoted.

The washing area side legs 23, 23 are formed in an arc shape that is convex with respect to the outside, that is, with respect to the corner portions 21f, 21f in the cross section intersecting the washing area side legs 23, 23 in the height direction. Therefore, the water FL1 flowing from the floor surface 100a of the washing place floor 100 toward the washing place side legs 23, 23 easily hits the outer surfaces 23c, 23c of the washing place side legs 23, 23 and changes in the lateral direction. Therefore, it is suppressed that the water flowing into the drainage recess 10 is excessively retained in the water storage unit 30, and the discharge of hair from the water storage unit 30 is further promoted.

On the other hand, as shown in FIG. 6, a part of the water FL2 flowing through the floor surface 100a of the washing place floor 100 hits the long side portion 101 on the bathtub 200 side from the floor surface 100a, and the bathtub side drainage groove. It flows toward the drainage recess 10 along the gradients of 104 and 104. The water FL2 flowing through the bathtub-side drainage ditches 104 and 104 flows into the drainage recess 10 from the first peripheral side portion 21b side of the lid portion 21 of the drainage cover 20.

Most of the water that has flowed into the drainage recess 10 from the bathtub-side drains 104 and 104 flows out to the drainage port 11 through the space S3 between the bathtub-side legs 22 and 22 shown in FIGS. 4 and 5. .. However, as shown in FIGS. 9 and 10, the water flowing into the drainage recess 10 from the vicinity of the bathtub side legs 22 and 22 passes through the drainage recess 10 and the bathtub side legs 22 and 22 of the drain cover 20. Flow toward.

The bathtub side legs 22 and 22 are formed so as to extend in a direction along the extending direction of the first peripheral side portion 21b of the lid portion 21, and the length direction of the bathtub side legs 22 and 22 is the bathtub side drainage. It is along the flow direction of the water flowing through the grooves 104 and 104. Therefore, it is possible to prevent the bathtub-side legs 22 and 22 from obstructing the smooth flow of water flowing in from the bathtub-side drainage ditches 104 and 104 and causing them to stagnate.

The water flowing from the bathtub side drainage grooves 104 and 104 and heading toward the bathtub side legs 22 and 22 flows along the length direction of the bathtub side legs 22 and 22 while maintaining the flow direction at the time of inflow, and is a space. It flows out to the drain port 11 through S3. Therefore, the water flowing in from the bathtub-side drains 104 and 104 does not stagnate in the vicinity of the bathtub-side legs 22 and 22 even if the amount of water is small and the water force is weak, and the outer surface of the bathtub-side legs 22 and 22 does not stagnate. It flows smoothly in the lateral direction along 22c and 22c. Therefore, the hair contained in the water is suppressed from being entangled with the bathtub side legs 22 and 22.

Since the outer surfaces 22c and 22c of the bathtub side legs 22 and 22 are formed by concave surfaces, the water flowing laterally along the outer surfaces 22c and 22c forms a water film on the outer surfaces 22c and 22c. This further prevents the hair from adhering to the bathtub side legs 22, 22.

Since the bathtub side legs 22 and 22 have a horizontally long shape extending in the direction along the extending direction of the first peripheral side portion 21b of the lid portion 21, the spaces S1 and S1 between the bathtub side legs 22 and 22 and the washroom side legs 23 and 23. Can be secured greatly. Therefore, the decrease in the flow velocity of the water flowing through the spaces S1 and S1 is suppressed, and the hair contained in the water toward the spaces S1 and S1 can be quickly discharged toward the drain port 11.

Next, a modified example of the drainage cover 20 will be described with reference to FIGS. 11A to 11J. In the drainage cover 20 shown in FIG. 11A, the three bathtub side leg portions 22 are arranged so as to be along the first peripheral side portion 21b of the lid portion 21. Also in this drainage cover 20, water can flow smoothly along the three bathtub side legs 22, so that hair is suppressed from being entangled with the bathtub side legs 22.

The drain cover 20 shown in FIG. 11B is the same as the drain cover 20 shown in FIG. 11A in that it has three bathtub side legs 22. However, the drainage cover 20 is different in that the intermediate leg portion 25 is provided between the bathtub side leg portion 22 and the washing place side leg portion 23. The intermediate leg portion 25 is formed so as to extend in a direction along the extending direction of the third peripheral side portion 21d and the fourth peripheral side portion 21e.

In the drainage cover 20 shown in FIG. 5, the drainage cover 20 shown in FIG. 11C is provided with an intermediate leg portion 25 between the bathtub side leg portion 22 and the washing place side leg portion 23 in the same manner as the drainage cover 20 shown in FIG. 11B. ing.

In the drainage cover 20 shown in FIG. 11D, the washing area side leg 23 in the drainage cover 20 shown in FIG. 5 is formed in a fan shape. Since the shape of the outer surface 23c of the fan-shaped washing area side leg portion 23 is not changed, the same effect as that of the drainage cover 20 shown in FIG. 5 can be obtained.

In the drainage cover 20 shown in FIG. 11E, the drainage cover 20 shown in FIG. 11D is provided with three bathtub side legs 22 similar to those in FIG. 12B.

The drainage cover 20 shown in FIG. 11F has an intermediate leg portion 25 provided between the bathtub side leg portion 22 and the washing place side leg portion 23 in the drainage cover 20 shown in FIG. 11D.

In the drainage cover 20 shown in FIG. 11G, the washing area side leg 23 in the drainage cover 20 shown in FIG. 5 is formed in an L shape. Since there is no change in the bathtub side leg portion 22, the effect of suppressing the entanglement of hair with the bathtub side leg portion 22 can be obtained.

In the drainage cover 20 shown in FIG. 11H, the drainage cover 20 shown in FIG. 11G is provided with three bathtub side legs 22 similar to those in FIG. 12B.

The drainage cover 20 shown in FIG. 11I has an intermediate leg portion 25 provided between the bathtub side leg portion 22 and the washing place side leg portion 23 in the drainage cover 20 shown in FIG. 11G.

The drainage cover 20 shown in FIG. 11J has only one bathtub side leg 22 in the drainage cover 20 shown in FIG. Since only one bathtub side leg 22 is also arranged along the first peripheral side 21b of the lid 21, hair is suppressed from being entangled with the bathtub side leg 22.

1 Drainage device 10 Drainage recess, 10a inner surface, 18 mounting part, 20 drainage cover, 21 lid part, 21a lower surface, 21b first peripheral side, 22 bathtub side leg, 21c second peripheral side, 21f corner, 23 washroom side legs, 23a, 23b washroom side leg ends, 100 washroom floor, 200 bathtub

Claims (5)

A lid covering the drainage recess formed in the washing floor of the bathroom including the bathtub and the washing floor,
A plurality of legs provided on the lower surface of the lid portion and contacting a mounting portion formed by a step portion in the drainage recess lowered from the floor surface of the washing place floor to support the lid portion. Prepare,
The plurality of legs
Of the peripheral side portions of the lid portion, the bathtub side leg portion arranged in the vicinity of the first peripheral side portion arranged on the bathtub side, and the bathtub side leg portion.
The peripheral portion of the lid portion includes a washing area side leg portion arranged in the vicinity of the second peripheral side portion arranged on the side opposite to the first peripheral side portion.
A drainage cover in which the arrangement shape of the bathtub side leg portion with respect to the first peripheral side portion and the arrangement shape of the washing place side leg portion with respect to the second peripheral side portion are different. The drainage cover according to claim 1, wherein the bathtub side leg portion is formed so as to extend in a direction along the extending direction of the first peripheral side portion. The drainage cover according to claim 1 or 2, wherein the washing area side leg portion is formed so as to extend in a direction intersecting the direction from the central portion of the lid portion toward the corner portion of the lid portion. The distance between the end of the washing area side leg and the inner surface of the drainage recess is larger than the distance between the inner surface of the drainage recess in the middle between both ends of the washing area side leg. The small drainage cover according to claim 3. The drainage cover according to any one of claims 1 to 4, wherein the washing area side leg portion is formed in an arc shape that is convex with respect to the outside in a cross section intersecting the height direction of the washing area side leg portion. ..

Images