JP3879466B2 - Floor pan drainage gradient structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor pan drainage gradient structure.
[0002]
[Prior art]
Conventionally, as this kind of floor pan drainage gradient structure, as shown in FIG. 7, a water gradient W ′ for allowing water to flow toward the drain outlet 6 side is provided in the inner portion 2 a of the bathtub installation surface 2 of the floor pan 1. In general, the water overflowing from the bathtub flows down to the inner portion 2a of the bathtub installation surface 2 and is drained to the drain port 6.
[0003]
[Problems to be solved by the invention]
However, in the bathroom unit, the height from the floor pan 1 to the ceiling surface may be restricted to a certain level. In such a case, the water gradient W ′ of the inner portion 2a of the bathtub installation surface 2 is set. If it is increased, the bathtub becomes higher, and the height to the ceiling surface is lowered accordingly, and there is a problem of giving a feeling of pressure. On the other hand, if the water gradient W ′ is reduced, the drainage performance is lowered and water is placed under the bathtub. Accumulates and causes mold, resulting in hygiene problems.
[0004]
The present invention was invented in view of the problems of the conventional example described above, and the object of the present invention is to make it possible to increase only the slope of the drainage groove while keeping the bathtub installation surface low. Even if the height from the floor pan to the ceiling surface is restricted to a certain level, the height to the ceiling surface can be improved. The object of the present invention is to provide a floor pan drainage gradient structure that can prevent a reduction in height.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, in the present invention, a step 4 higher than the bathtub installation surface 2 is erected on the wall side A of the bathtub installation surface 2 of the floor pan 1, and drainage is performed on the upper surface side of the step 4. A groove 5 is provided, and a water gradient W for allowing water to flow toward the drain outlet 6 side of the floor pan 1 is provided in the drain groove 5.
[0007]
Accordingly, it is possible to increase only the gradient W of the drainage groove 5 while keeping the bathtub installation surface 2 low, and it is possible to increase the gradient W of the drainage groove 5 to improve drainage performance, and from the floor pan 1 to the ceiling. Even when the height to the surface is restricted to a certain level, it is possible to prevent the height to the ceiling surface from being lowered.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0009]
The floor pan 1 of this embodiment is provided with the bathtub installation surface 2 which installs the bathtub 3, as shown in FIG. 1, FIG. 2, and the outer periphery of the bathtub installation surface 2 is one step lower than the bathtub installation surface 2 An outer peripheral groove portion 8 is provided, and a drain outlet 6 is provided on one side of the washing place side B of the outer peripheral groove portion 8. The outer peripheral groove portion 8 is provided with a small water gradient toward the drain port 6. In addition, the leg part 50 (FIG. 3) is provided in the lower surface of the bathtub 3 over the perimeter of the lower surface outer periphery of the bathtub 3, and this leg part 50 is made of packing material along the outer periphery of the bathtub installation surface 2. It is airtightly sealed, and thus has a structure that can prevent water from flowing from the outer peripheral groove 8 to the upper surface of the bathtub installation surface 2.
[0010]
Steps 4 that are one step higher than the bathtub installation surface 2 are erected on three sides of the wall side A of the bathtub installation surface 2. Each step 4 rises upward from the outer peripheral portion of the outer peripheral groove 8 at a height that does not interfere with the side wall surface 3 a (FIG. 3) of the bathtub 3. A drainage groove 5 that is one step lower than the upper surface 4 a of the step portion 4 is formed in the back of the upper surface of each step portion 4. The drain grooves 5 in each step 4 communicate with each other, and the open ends 5 a and 5 b of the drain grooves 5 and 5 on both sides are opened to the outer peripheral groove 8 of the bathtub installation surface 2, respectively. Is drained to the drainage port 6 through the outer peripheral groove 8. Here, a water gradient W for allowing water to flow down toward the drain port 6 is formed in the drain groove 5. In the example of FIG. 2, the height of the central drainage groove 5A provided in the opposite direction to the washing area B is the highest, and the opening ends 5a and 5b of the drainage grooves 5B and 5B on both sides are the lowest. The water gradient W is so smooth. In addition, as shown in FIG. 3, water return pieces 9 higher than the stepped portion 4 are erected on the three sides of the wall side A of the bathtub installation surface 2 from the outer peripheral portion of the drainage groove 5. A wall support surface 11 for supporting the bathroom wall 10 is provided at the upper end of the piece 9.
[0011]
Accordingly, a drainage groove 5 that is one step higher is provided in three directions on the wall side A of the bathtub installation surface 2, and a water gradient W is provided in the drainage groove 5 to allow water to flow toward the drainage port 6 side of the floor pan 1. Therefore, it is possible to increase only the slope W of the drainage groove 5 while keeping the bathtub installation surface 2 low, and thereby, the water overflowing from the bathtub 3 is smoothly passed through the drainage groove 5 to the drain outlet 6 side. It becomes possible to drain the water, and the drainage performance can be greatly improved. Therefore, since water does not accumulate under the bathtub 3 as in the conventional case and cause mold, the sanitation is extremely good. Moreover, since the drainage performance can be improved by increasing the gradient W of the drainage groove 5, it is not necessary to provide a water gradient on the bathtub installation surface 2, so the height from the floor pan 1 to the ceiling surface is constant. Even if it is a case where it is restrained, the height of the bathtub installation surface 2 can be made low and the height to a ceiling surface can be made high. Further, the three sides on the wall side A of the bathtub installation surface 2 are portions of a dead space covered by the flange portion 3c (FIG. 3) of the bathtub 3, and by providing a step portion 4 with a drain groove 5 in this portion, dead The drainage groove 5 can be provided without changing the size of the floor pan 1 using the space. Moreover, in this example, the center part of the center drainage groove 5A is made the highest among the drainage grooves 5 provided on the three sides of the wall side A of the bathtub installation surface 2, and the open ends 5a of the drainage grooves 5B and 5B on both sides are provided. 5b is set to the lowest water gradient W, so that the water is distributed to the drainage grooves 5B and 5B on both sides and drained in a well-balanced manner. Combined with the fact that the bathtub leg 50 (FIG. 3) is sealed to the outer peripheral edge, there is also an advantage that the overflow of water to the bathtub installation surface 2 can be effectively prevented. Note that the highest portion of the drainage groove 5 is not limited to the central portion of the central drainage groove 5A, and any portion of the drainage groove 5 may be used, and the design can be changed as appropriate.
[0012]
4 and 5 show another embodiment. In this example, an elongated rib-shaped weir portion 7 is erected along one side of the wall side A of the bathtub installation surface 2 of the floor pan 1. The dam portion 7 is erected at a height that does not interfere with the side wall surface 3a and bottom wall surface 3b of the bathtub 3 (FIG. 3), and a drain groove 5 is provided outside the dam portion 7. This drain groove 5 Is provided with a water gradient W for allowing water to flow toward the drain outlet 6 side of the floor pan 1 within a range not exceeding the height H of the weir part 7. In this example, the height of the weir part 7 is set. The water gradient W has a smooth mountain shape such that the height of the central portion 5c of the drainage groove 5 is the highest and the both ends 5a, 5b of the drainage groove 5 are the lowest so as not to exceed the height H. The opening end portions 5a and 5b of the groove 5 are opened to the outer peripheral groove portion 8 of the bathtub installation surface 2, and the water from the drainage groove 5 flows down to the outer peripheral groove portion 8. At this time, Since the leg part 50 (FIG. 3) of the bathtub 3 is airtightly sealed along, it is from the outer peripheral groove part 8 to the bathtub installation surface 2 upper surface. Since the inflow of water is prevented, the water from the drainage groove 5 is drained to the drainage port 6 through the outer peripheral groove portion 8. Furthermore, the groove width of the drainage groove 5 is the center of the drainage groove 5. Both end portions of the weir portion 7 are inclined to the bathtub installation surface 2 side in a substantially square shape in plan view so as to become narrower at the portion 5c and wider toward the both end portions 5a and 5b and flow into the drainage groove 5 It is possible to cope with a large amount of drainage, however, it is possible to increase only the slope W of the drainage groove 5 while keeping the bathtub installation surface 2 low, as in the embodiment of FIGS. The drainage performance can be greatly improved, water does not accumulate under the bathtub 3 and cause mold, and the height to the ceiling surface can be increased. One side of the wall side A is covered by the flange portion 3c (FIG. 3) of the bathtub 3. It is a part of the dead space, and by providing the drainage groove 5 and the weir part 7 in this part, the effect that there is no need to change the size of the floor pan 1 is obtained. The drainage groove 5 is provided on only one side of the wall side A with a mountain-shaped water gradient W, the central part 5c of the drainage groove 5 is the highest and the groove width is narrowed, the ends 5a and 2b are the lowest and the side of the groove is horizontal. Since it is widened, the flow rate of the water falling along the drainage groove 5 is increased, and even if the water gradient of the outer peripheral groove part 8 of the bathtub installation surface 2 is small, water can be drained by vigorously flowing on the outer peripheral groove part 8. In this example, the central part 5c of the drainage groove 5 is the highest and the groove width is narrowed, the both end parts 5a and 2b are the lowest and the width of the groove is widened. Not limited to this, the groove width may be constant, and one open end The water gradient may be the highest at the portion 5a (or 5b) and the lowest at the other open end 5b (or 5a). Moreover, in this example, although the weir part 7 was erected only on one side of the wall side A of the bathtub installation surface 2, it may be erected on the other wall side A side.
[0013]
【The invention's effect】
As described above, in the first aspect of the present invention, a step portion higher than the bathtub installation surface is erected on the wall side of the bathtub installation surface of the floor pan, and a drainage groove is provided on the upper surface side of the step portion. A water gradient is provided in the drainage groove to allow water to flow toward the drainage side of the floor pan.
[0015]
By adopting such a floor pan drainage gradient structure, it becomes possible to increase only the slope of the drainage groove while keeping the bathtub installation surface low, and the drainage performance can be greatly improved. In addition, water does not accumulate under the bathtub and cause mold, so it is very hygienic and the drainage performance can be improved by increasing the slope of the drainage groove. Therefore, even if the height from the floor pan to the ceiling surface is restricted to a certain level, the height of the bathtub installation surface is reduced and the height to the ceiling surface is increased. It can be done.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of an embodiment of the present invention.
FIG. 2 is a plan view of the above.
3 is a cross-sectional view taken along the line CC of FIG.
FIG. 4 is a perspective view of another embodiment.
FIG. 5 is a plan view of the same.
6 is a cross-sectional view taken along the line DD of FIG.
FIG. 7 is a plan view of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Floor pan 2 Bathtub installation surface 3 Bathtub 4 Step part 5 Drainage groove 6 Drainage port 7 Weir part A Wall side H Height of weir part W Water gradient

Claims (1)

A step that is higher than the bathtub installation surface is erected on the wall side of the bathtub installation surface of the floor pan, and a drainage groove is provided on the upper surface side of the stepping section, and water flows down to the drainage side of the floor pan. A floor pan drainage gradient structure characterized in that a water gradient is provided .

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