Bathroom drain structure

Abstract

To provide a drain port structure for a bathroom that prevents a finger or toe from getting stuck in a finger hook gap of the drain port structure on a bathroom floor.SOLUTION: A drain cover 20 is detachably provided in a drain recess part 10 having a drain port 11 of a bathroom floor 2, a finger hook part 23 is formed on an outer edge of the drain cover 20, and a finger hook gap 9g is formed between the finger hook part 23 and an inner peripheral surface of the drain recess part 10. A size D9g of the finger hook gap shall be less than 8 mm.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a bathroom drain structure, and in particular to a drain structure having a finger gap for removing a drain cover. [Background technology]

[0002] Generally, a drain recess for draining hot and cold water is provided on a bathroom floor such as a washing area in a bathroom, and a drain outlet is formed on the concave bottom surface of the drain recess. A drain lid is fitted into the drain recess so as to cover the drain outlet. In the drain lids of Patent Documents 1 and 2, a finger hook portion that is recessed in a semicircular shape in a plan view is formed at a predetermined location on the edge. A finger hook gap is formed between the finger hook portion and the inner peripheral surface of the drain recess. The drain lid can be removed by hooking a finger into the finger hook gap. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-072574 A [Patent Document 1] Utility Model Registration No. 2518600 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional finger gaps were 8 mm or larger, which could lead to, for example, the toes getting stuck and making it easy to trip, or the fingers getting stuck and making it difficult to remove. In view of the above circumstances, the present invention aims to improve safety by preventing fingers or toes from getting stuck in the finger gaps in the drain structure of a bathroom floor. [Means for solving the problem]

[0005] In order to solve the above problems, the bathroom drain structure of the present invention is, A drain recess formed in the bathroom floor; A drainage port opened in the drainage recess; A drainage cover detachably provided in the drainage recess; A finger hook portion is formed on the outer edge of the drain cover, a finger hook gap is formed between the finger hook portion and the inner surface of the drain recess, and the size of the finger hook gap is less than 8 mm.

[0006] Hot water flows through the bathroom floor into the drain recess and is drained out through the drain. By covering the drain recess with a drain cover, the beauty of the bathroom can be maintained and the feet of the bather can be prevented from getting stuck in the drain recess. The finger gap is less than 8 mm in size, preventing bathers' toes from getting caught and tripping. When removing the drain cover, place your fingers on the finger gap and lift it up. Because the finger gap is less than 8 mm, your fingers will not get stuck too far into the finger gap, and you will not get your fingers pinched between the inner periphery of the drain recess and the drain cover, or have difficulty removing your fingers from the finger gap. This makes it easy to remove the drain cover.

[0007] It is preferable that the thickness of the finger grip portion increases toward the base end opposite the inner circumferential surface of the drainage recess. This ensures the required strength of the finger hook. On the other hand, by making the tip of the finger hook facing the inner circumferential surface of the drain recess thin, it is easier to hook a finger thereon, and the drain lid can be removed even more easily.

[0008] It is preferable that the drainage lid has a cover plate that fits into the upper opening of the drainage recess, and a cover peripheral wall that protrudes downward from the outer edge of the cover plate and follows the inner surface of the drainage recess, and that a recessed wall portion that is recessed when viewed from the bottom is formed in a portion of the cover peripheral wall corresponding to the finger hook portion, and that the finger hook portion protrudes outward from the recessed wall portion. This makes it easier to hook a finger on the finger grip, making it possible to remove the drain cover more easily. Also, the supporting strength of the finger grip can be ensured.

[0009] In a bathroom having the above-mentioned drain structure, The drain structure is disposed in the middle of the edge of the washing area pan on the bathtub side, A plurality of floor boards are laid on the bathtub pan that receives the bathtub, in a line in the bathroom width direction along the edge of the bathtub side, and a board gap is formed between two adjacent floor boards sandwiching the intermediate portion; A communication opening is formed on the peripheral portion of the drain recess on the bathtub side, the communication opening being connected to the gap between the boards, It is preferable that the bathtub side end of the drain cover fits into the gap between the boards. This allows the drain cover to function as a spacer between the floorboards and as a stopper for the floorboards, ensuring the width of the gap between the boards and reducing the wobbling of the floorboards. It also prevents the floorboards from moving unexpectedly in the width direction of the bathroom when someone is standing on them. Used hot and cold water is drained from the drain outlet through the gap between the boards, the communication opening, and the drain recess in that order. Effect of the Invention

[0010] According to the present invention, it is possible to prevent fingers or toes from getting stuck in the finger gaps in the drain structure of the bathroom floor. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a plan view of a bathroom according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a plan view of the drain structure shown in FIG. [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. 4 is a perspective view of a drain cover of the drain outlet structure. [Diagram 5] FIG. 5 is a bottom view of the drain cover. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in Figure 1, bathroom 1 includes a bathtub 1a, indicated by a two-dot chain line in the figure, a bathroom floor 2, and a drain structure 9. The bathroom floor 2 includes a washing area pan 3, a bathtub pan 4, and a laying body 5. The bathtub pan 4 is disposed at the rear side of the washing area pan 3 (to the right in Figure 1).

[0013] The installation body 5 is composed of multiple (four in the figure) floor boards 5a. These floor boards 5a are lined up in the bathroom width direction and laid on the bathtub pan 4. The bathtub 1a is placed on the floor boards 5a. The bathtub pan 4 supports the bathtub 1a via the installation body 5 made of the floor boards 5a.

[0014] The two adjacent floor boards 5a sandwiching the middle part of the bathtub pan 4 in the bathroom width direction are spaced apart from each other, and a board gap 5c is formed between these two floor boards 5a. The middle part of the bathtub pan 4 in the bathroom width direction is exposed through the board gap 5c.

[0015] As shown in Fig. 1, the edge 3e on the bathtub side of the washing pan 3 extends in the width direction of the bathroom (up and down in the figure). A drain structure 9 is disposed in the middle of the edge 3e on the bathtub side.

[0016] As shown in Figs. 2 and 3, the drain hole structure 9 is composed of a drain hole 10, a drain hole 11, and a drain cover 20. The drain hole 10 is recessed from the wash area pan 3 and thus the bathroom floor 2, and is formed in a roughly U-shape in plan view. The semicircular portion of the drain hole 10 in plan view faces the front side in the bathroom depth direction (left side in Fig. 2). The side opposite to the semicircular portion in plan view of the drain hole 10 (right side in Fig. 2), i.e., the peripheral side on the bathtub side, is opened to form a communication opening 13. The communication opening 13 communicates with the board gap 5c. As shown in Fig. 3, the bottom surface 13b of the communication opening 13 is flush with the upper surface of the bathtub pan 4. Although detailed illustration is omitted, the seam between the bottom surface 13b of the communication opening 13 and the bathtub pan 4, and further the seam between the washing area pan 3 and the bathtub pan 4, are subjected to a waterproofing treatment.

[0017] As shown in FIG. 3, a drainage port 11 is opened in the central concave bottom surface 10b of the drainage recess 10. A lid locking step 12 is formed at the midpoint of the inner circumferential surface of the drainage recess 10 .

[0018] As shown in Fig. 4, the drain cover 20 has a cover plate 21 and a cover peripheral wall 22. The cover plate 21 is formed in a semicircular shape that matches the planar shape of the drain recess 10. As shown in Fig. 2, a lattice-like pattern 21b, for example, is formed on the upper surface of the cover plate 21. The form of the pattern 21b is not limited to a lattice shape and can be modified as appropriate. The pattern 21b does not have to be present.

[0019] 3 and 4, the lid peripheral wall 22 is formed in a ring shape along the outer edge of the lid plate 21 and protrudes downward from the outer edge of the lid plate 21. The wall portion 22b on the bathtub side of the lid peripheral wall 22 protrudes downward less than the wall portion 22a on the washing area side, and a lid wall step 22d is formed between these wall portions 22a and 22b.

[0020] As shown in Fig. 3, a drain cover 20 is removably provided on the drain recess 10. A cover plate 21 fits into the upper opening of the drain recess 10 to cover the drain outlet 11. The upper surface of the cover plate 21 is disposed at approximately the same height as the upper surface of the washing area pan 3 around the drain recess 10.

[0021] The lid peripheral wall 22 is fitted along the inner peripheral surface of the drainage recess 10 above the lid locking step 12. The lower end of the lid peripheral wall 22 is locked to the lid locking step 12. In addition, a lateral step 12d of the lid locking step 12 is locked to a lid wall step 22d.

[0022] 4 and 5, a finger hook portion 23 is formed on the outer edge of the drain cover 20. Finger hook portion 23 is disposed at the end of cover plate 21 on the front side (sink side) in the bathroom depth direction. In a plan view or bottom view, tip 23e of finger hook portion 23 is recessed in an arc shape from the semicircular outer edge of drain cover 20.

[0023] 2 and 3, a finger-holding gap 9g (safety gap) is formed between the tip 23e of the finger-holding portion 23 and the inner circumferential surface of the drainage recess 10. The size D of the finger-holding gap 9g 9g is less than 8 mm (D 9g <8mm), preferably 5mm or more and less than 8mm. In addition, the finger gap size of 9g D 9g Strictly speaking, the clearance CL between the inner circumferential surface of the drain recess 10 and the drain cover 20 is 20 This is the horizontal distance from the center (the most recessed point) of the tip 23e of the finger grip portion 23 to the upper end portion 10a of the inner surface of the drain recess 10 (the continuous portion with the curved portion 16 extending to the upper surface of the washing area pan 3) when the drain cover 20 is installed in the correct position with no bias relative to the drain recess 10 so that the distance is uniform around the circumference of the drain cover 20 (Figure 6).

[0024] 6, upper surface 23a of finger hook portion 23 is flush with and continuous with the upper surface of cover plate 21. Lower surface 23b of finger hook portion 23 is inclined upward from base end 23c (the portion opposite the inner circumferential surface of the drainage recess) toward tip end 23e. Thus, finger hook portion 23 becomes thinner toward tip end 23e. In other words, the thickness of finger hook portion 23 increases toward base end 23c. The thickness of finger hook portion 23 at base end 23c is approximately the same as the thickness of the main body of cover plate 21, and is, for example, 2 mm to 5 mm.

[0025] 4 and 5, a recessed wall portion 24 is formed in a portion of the lid peripheral wall 22 corresponding to the finger hook portion 23. The recessed wall portion 24 is recessed further than the finger hook portion 23 in a bottom view. As shown in Fig. 6, a base end portion 23c of the finger hook portion 23 is integrally connected to an outwardly facing surface 24a of the recessed wall portion 24. In other words, the finger hook portion 23 protrudes outward from the recessed wall portion 24 in a bottom view.

[0026] 4 and 5, both ends in the width direction (top and bottom in FIG. 5) of the recessed wall portion 24 are provided with end wall portions 24b that intersect with the lid peripheral wall 22. Both ends in the width direction of the finger hook portion 23 are continuous with the end wall portions 24b.

[0027] As shown in FIG. 2, the bathtub side end 20b of the drain cover 20 opposite the finger grip portion 23 fits into the gap 5c between the boards. The width of the drain cover 20 along the bathroom width direction is approximately equal to the width of the board gap 5c. Both sides of the bathtub side end 20b of the drain cover 20 are approximately in contact with the adjacent floor board 5a across the board gap 5c.

[0028] In a bathroom 1 equipped with such a drain structure 9, used hot and cold water is drained from the washing pan 3 etc. through the board gap 5c, the communicating opening 13, the drain recess 10, and then out the drain 11. By covering the drain cover 20 over the drain recess 10, the beauty of the bathroom 1 can be maintained and the bather's feet can be prevented from getting stuck in the drain recess 10. In addition, the size D 9g is less than 8 mm, it is possible to prevent the toes of bathers, etc. from getting caught in the finger gap 9g and causing them to trip. When removing the drain cover 20 for cleaning or the like, the drain cover 20 is pulled up from the drain recess 10 by hooking a finger on the finger hook portion 23. 9g Since the distance is less than 8 mm, it is possible to prevent the finger from getting too deep into the finger gap 9g, and it is possible to prevent the finger from getting pinched between the inner surface of the drain recess 10 and the drain cover 20, and to prevent the finger from becoming difficult to remove from the finger gap 9g. Furthermore, the underside 23b of the finger hook 23 is inclined upward toward the tip 23e, and the tip 23e is thin-walled, making it easy to hook a finger on the finger hook 23. In addition, the portion of the lid peripheral wall 22 corresponding to the finger hook 23 is a recessed wall portion 24 that recedes inward, and the finger hook 23 protrudes outward from the recessed wall portion 24, making it even easier to hook a finger on the finger hook 23. This allows the drain lid 20 to be easily removed.

[0029] Tip end 23e of finger hook portion 23 is thin-walled, whereas base end 23c is thick-walled, thereby ensuring the required strength of finger hook portion 23. Base end 23c of finger hook portion 23 is integrally connected to recessed wall portion 24, thereby increasing the support strength of finger hook portion 23.

[0030] Furthermore, the drain cover 20 also functions as a spacer between the floor boards 5a and as a stopper for the floor boards 5a. That is, the bathtub side end 20b of the drain cover 20 fits into the gap 5c between the boards, thereby ensuring the width of the gap 5c between the boards and suppressing the rattling of the floor boards 5a. Furthermore, it is possible to prevent the floor board 5a from moving unexpectedly in the width direction of the bathroom when a person is standing on the floor board 5a.

[0031] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, finger hook portion 23 only needs to be recessed relative to a virtual line that virtually extends the outer circumferential edge of drain cover 20 toward the finger hook portion, and tip 23e of finger hook portion 23 is not limited to being concavely curved but may also be straight.

[0032] The invention is applicable, for example, to bathrooms in buildings. [Explanation of symbols]

[0033] 1 bathroom 2a Bathtub 2 bathroom floor 3 Washing area pan 3e Bathtub side edge 4 Bathtub pan 5 Installation body 5a Floor board 5c Board gap 9 Drain structure 9g Finger gap D 9g Finger gap size 10 Drainage recess 11 Drain 12 Lid locking step 13 Communication opening 20 Drain lid 20b Bathtub side end 21 Lid plate 22 Lid surrounding wall 23 Finger grip 23c Base end (part opposite to the inner circumferential surface of the drain recess) 23e Tip 24 Concave wall part

Claims

1. A drain recess formed in the bathroom floor; A drainage port opened in the drainage recess; A drainage cover detachably provided in the drainage recess; A finger hook portion is formed on the outer edge of the drain cover, and a finger hook gap is formed between the finger hook portion and the inner circumferential surface of the drain recess, and the size of the finger hook gap is 5 mm or more and less than 8 mm, A bathroom drain structure characterized in that the drain lid has a cover plate that fits into the top opening of the drain recess, and a cover peripheral wall that protrudes downward from the outer edge of the cover plate and follows the inner surface of the drain recess, a recessed wall portion that is recessed in a bottom view at a portion of the cover peripheral wall corresponding to the finger hook portion, the finger hook portion protrudes outward from the recessed wall portion, the tip of the finger hook portion is recessed in an arc shape toward the inside of the drain lid in a bottom view, and the recessed wall portion is recessed further inward than the tip of the finger hook portion in a bottom view.

2. The thickness of the finger hook portion increases toward a base end portion of the finger hook portion on the recessed wall portion side, The bathroom drain structure as described in claim 1, characterized in that the lower surface of the finger hook portion is inclined downward toward the base end portion and intersects at an obtuse angle with the outer surface of the portion of the recessed wall portion that protrudes downward from the finger hook portion.

3. A bathroom having a drainage outlet structure comprising a drain recess formed in a bathroom floor, a drain opening in the drain recess, and a drain cover removably attached to the drain recess, wherein a finger hook portion is formed on the outer edge of the drain cover, a finger hook gap is formed between the finger hook portion and an inner peripheral surface of the drain recess, and the size of the finger hook gap is 5 mm or more and less than 8 mm, The drain structure is disposed in the middle of the edge of the washing area pan on the bathtub side, A plurality of floor boards are laid on the bathtub pan that receives the bathtub, in a line in the bathroom width direction along the edge of the bathtub side, and a board gap is formed between two adjacent floor boards sandwiching the intermediate portion; A communication opening is formed on the peripheral portion of the drain recess on the bathtub side, the communication opening being connected to the gap between the boards, A bathroom characterized in that the bathtub side end of the drain cover fits into the gap between the boards.

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