JPH11222894A - Drain port cover of bath floor pan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain port cover of a bath floor pan for which a flat- plate-shaped cover having no water passing hole formed in the upper side is used and which can be prevented from disengaging due to floating up and, moreover, can make bath water flow smoothly. SOLUTION: This drain port cover A of a bath floor pan 20 has a circular cover support frame 11 provided on the rear side of a flat-plate-shaped cover 10 and, moreover, a plurality of holes 12 or notch holes are provided in a corner part formed by the flat-plate-shaped cover 10 and the cover support frame 11 or in the cover support frame 11. Another drain port cover of the bath floor pan has the circular cover support frame provided on the rear side of the flat- plate-shaped cover and further a plurality of cover fixing legs are provided. These drain port covers are constituted of a plastic molded body or a fiber- reinforced plastic molded body, or a low-foamed plastic molded body or a fiber-reinforced low-foamed plastic molded body of which the specific gravity is larger than 1.0.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain pan for a bathroom floor pan.

[0002]

2. Description of the Related Art Bathroom units using FRP bathtubs, side walls and floor pans have become widespread. In such a bathroom unit, a drain port is provided in a bathroom floor pan serving as a washing place, and a lid is attached to the drain port so as to be able to drain.

Conventionally, as a drain port lid of this type of bathroom floor pan, a plate-shaped lid having a relatively large water passage hole such as a slit formed on the upper surface has been used. A lid configured to flow out of the water hole into the drain of the bathroom floor pan is used, but an infant may injure a finger by inserting the finger into the water hole.

[0004] Therefore, recently, a flat lid having no water passage hole formed on the upper surface has been used, and drainage is discharged from a bathroom between the periphery of the flat lid and the periphery of a drain port having a water gradient. A lid configured to drain into the floor pan drain is used.

[0005]

However, in the case of using the above-mentioned conventional flat lid having no water passage hole formed on the upper surface, a large amount of hot water is used at a time when the body is washed on a bathroom floor pan. As a result, these hot waters overflowed over the drain lid,
The overflowing hot water flows from the periphery of the lid to the drain of the bathroom floor pan with the air entrained.

[0006] At this time, there is a risk that the hot water or entrapped air on the floor pan of the bathroom will cause the lid to float up and fall off the proper position, put on the foot without knowing it, and fall off. Moreover, the hot and cold water containing air does not flow smoothly to the drain, and dirty hot and cold water temporarily accumulates on the floor pan, which is not preferable in terms of sanitation.

The present invention solves the above problems,
The purpose is to use a flat lid with no water holes formed on the upper surface to prevent the drain lid from coming off due to the lifting of the drain lid, and to drain the bathroom floor pan that allows hot water to flow smoothly. To provide the palate.

[0008]

In order to achieve the above object, the drain pan lid of the bathroom floor pan according to the invention of claim 1 is provided.
An annular lid support frame is provided on the back side of the flat lid, and further,
A plurality of holes were formed in the corners or the lid support frame formed of a flat lid and a lid support frame.

[0009] In the drain port lid of the bathroom floor pan according to the second aspect of the present invention, an annular lid support frame is provided on the back side of the flat lid, and further, on the back surface of the flat lid and inside the lid support frame. The structure was such that a plurality of lid stopper legs were provided.

In a third aspect of the present invention, the drain port lid of the bathroom floor pan has an annular lid supporting frame provided on the back side of the flat lid, and a plurality of notched holes provided in the lid supporting frame. Configuration.

Further, the drain port lid of the bathroom floor pan according to claim 4 is made of a low foamed plastic molded article or a low foamed fiber reinforced plastic molded article having a specific gravity of more than 1.0. 2. A drainage palate for a bathroom floor pan according to item 1.

[0012]

When the drain port lid of the bathroom floor pan according to the first aspect of the present invention is used, the air entrained in the hot water is provided together with the hot water at the corner formed by the flat lid and the lid support frame or the lid support frame. The pressure generated by the air discharged from the plurality of holes and entrained in the hot and cold water on the back surface of the flat lid is reduced. As a result, it is possible to prevent the drain port lid from being lifted and deviating from the proper position.

[0013] Further, when the drain port lid of the bathroom floor pan according to the second aspect of the present invention is used, even if the drain port lid rises due to the air entrained in the hot and cold water, a plurality of lid stopper legs are caught by the drain port to drain the water. The palate does not shift laterally,
The drain lid is prevented from deviating from the proper position. Then, as the water level returns, the drainage lid B descends and returns to its original position.

[0014] When the drain port lid of the bathroom floor pan according to the third aspect of the present invention is used, the air entrained in the hot water is discharged together with the hot water from a plurality of notches provided in the lid support frame, and the flat lid is closed. The pressure on the back side by the air entrapped in the water is reduced. As a result, it is possible to prevent the drain port lid from being lifted and deviating from the proper position.

According to a fourth aspect of the present invention, in addition to the functions described in each of the above-mentioned aspects, the drainage mouth cover of the bathroom floor pan has the specific gravity of each of the members constituting the drainage mouth cover, especially the flat cover, being greater than 1.0. Since it is made of a low-foamed plastic molded article or a low-foamed fiber-reinforced plastic molded article, when molding articles having the same thickness, the material cost can be reduced by the amount of foaming, and the product cost is reduced. In addition, since it is difficult to float on the water, detachment of the drain cap due to floating of the drain cap by a large amount of hot water is further improved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. First, the drain port lid of the bathroom floor pan according to the first aspect of the present invention will be described. FIG.
1 shows an example of a mode of use of a drainage mouth cover of a bathroom floor pan according to the invention of claim 1, (a) is a sectional view, and (b) is a perspective view.

In FIGS. 1 (a) and 1 (b), A is a drain port cover of the present invention, which is a flat cover 10 and a flat cover 1
And an annular lid support frame 11 provided on the back side of
Further, a plurality of holes 12 are provided at corners formed by the flat lid 10 and the lid support frame 11. The plurality of holes 12 may be provided in the annular lid support frame 11,
It is preferable to provide it at the corner formed by the flat lid 10 and the lid support frame 11. When provided on the annular lid support frame 11, a plurality of notched holes may be provided instead of the plurality of holes (the invention of claim 3).

Further, as shown in FIG. 1B, the plurality of holes 12 are formed at a corner formed by the flat lid 10 and the lid support frame 11 or at a predetermined interval around the entire circumference of the lid support frame 11. However, it is more preferable that the air is trapped in such a portion since the air caught in the hot water easily accumulates from the arc-shaped portion to the parallel portions on both sides thereof.

In order to attach the drainage lid A to the drainage port 21 of the bathroom floor pan 20, it is only necessary to mount the lid support frame 11 of the drainage lid A on the step 22 formed in the drainage port 21. FIG. 1B shows a state before the lid supporting frame 11 of the drain port lid A is placed on the step portion 22 of the drain port 21.
Reference numeral 23 denotes an apron of a bathtub, and reference numeral 24 denotes a drain connection portion formed at a lower end portion of the drain port 21. Usually, a deodorizing trap, a wire mesh for removing dust, and a mesh plate are attached to the drain connection portion 24. . 25 is a drain groove having an inclined surface.

When such a drain pan A of the bathroom floor pan is used, when a large amount of water is used at a time when the body is washed on the bathroom floor pan 20, the air entrained in the water is flattened together with the water. The flat lid 10 is discharged from a plurality of holes 12 formed in the corners or the lid support frame 11 formed by the lid 10 and the lid support frame 11, and the pressure due to the air entrained in hot water is not applied to the flat lid 10. Disappear. As a result, it is prevented that the drain lid A rises and deviates from the regular position.

Further, the hot water containing air is straightened and flows smoothly from the drain groove 25 having the inclined surface to the drain port 21, so that dirty hot water does not accumulate on the floor pan 20.

Next, the drain lid of the bathroom floor pan according to the second aspect of the present invention will be described. FIG. 2 shows an example of a usage mode of a drainage mouth lid of a bathroom floor pan according to the invention of claim 2,
(A) is a sectional view, and (B) is a perspective view.

In FIGS. 2A and 2B, reference numeral B denotes a drain port cover of the present invention, which is a flat cover 10 and a flat cover 1.
0, and a plurality of lid stopper legs 26 provided on the back side of the flat lid 10 and inside the lid support frame 11. This lid stopper leg 23
Is to prevent the drain lid from shifting in the horizontal direction when the drain lid B rises.
It is provided so as to protrude longer than the height of.

In particular, when a large amount of hot water is used at one time, hot water does not accumulate in the bathroom floor pan 20 at a depth of 30 mm or more, and it depends on the height of the lid support frame 11. The length of the leg 23 is 30 mm from the height of the lid support frame 11.
It is preferable to provide it so as to protrude.

In order to attach the drainage mouth B to the drainage mouth 21 of the bathroom floor pan 20, it is only necessary to mount the lid support frame 11 of the drainage mouth A on the step 22 formed in the drainage mouth 21. . FIG. 2B illustrates a state before the lid supporting frame 11 of the drainage lid B is placed. Reference numeral 23 denotes an apron of a bathtub, and reference numeral 24 denotes a drain connection portion formed at a lower end portion of the drain port 21. Usually, a deodorizing trap, a wire mesh for removing dust, and a mesh plate are attached to the drain connection portion 24. . 25
Is a drain ditch having an inclined surface.

When such a drain pan B of the bathroom floor pan is used, when a large amount of hot water is used at one time when the body is washed on the bathroom floor pan 20, the drain pan B is entrained by the air entrained in the hot water. Even if it rises, the plurality of lid stopper legs 26
The drainage lid B is not displaced in the lateral direction while being hooked on the drainage port 21 and in contact with the inner wall of the drainage port 21, thereby preventing the drainage lid B from being displaced from the proper position. Then, as the water level returns, the drainage lid B descends and returns to its original position.

Further, the hot water containing air is straightened and flows smoothly from the drain groove 25 having the inclined surface to the drain port 21, so that dirty hot water does not accumulate on the floor pan 20.

The above drain pans A and B of the bathroom floor pan are:
Both are produced from FRP molded products and plastic molded products. Here, as the plastic, unsaturated polyester, polyvinyl chloride, polyethylene terephthalate,
Polybutylene terephthalate, polyacetal, polycarbonate, polyamide, ABS resin and the like are used,
In particular, a drain cap formed of a plastic having a high specific gravity (specific gravity of 1.4 or more) is unlikely to float on water, so that the detachment of the drain cap due to lifting of the drain cap can be further improved.

In particular, the drain pans of the bathroom floor pan of the present invention, for example, those in which the drain pans A and B are made of a low-foamed plastic molded article or a low-foamed fiber-reinforced plastic molded article having a specific gravity of more than 1.0 are the same. When molding a thick-walled product, the material cost can be reduced by the amount of foaming, and the product cost can be reduced. In addition, since it is difficult to float on the water, detachment of the drain cap by floating of the drain cap by a large amount of hot water is further improved (the invention of claim 4).

Here, in order to obtain a drainage mouth lid made of a low foamed plastic molded article or a low foamed fiber reinforced plastic molded article having a specific gravity of more than 1.0, the above-mentioned plastic (for example, heat-resistant ABS resin) or short glass fiber is used. A small amount of a pyrolytic blowing agent such as, for example, azodicarbonamide is added to the above-mentioned plastic containing short fibers.
5% by weight), and a method similar to the conventional injection molding method is employed. Even when the blowing agent is not mixed, a method similar to the conventional injection molding method is employed.

In this case, the obtained drain port lid has a lid supporting frame or a lid supporting frame provided on a flat lid and a plurality of holes or cutout holes. Since there is no reinforcing rib or the like, there is no sink in the molded product, and the back surface of the flat lid can be easily cleaned.

By embedding a metal piece such as iron or lead in the drain lid, it is possible to prevent the drain lid from coming off due to the lifting of the drain lid.

[0033]

As described above, when the drain pan of the bathroom floor pan of the present invention is used, even if a large amount of hot water is used at one time when the body is washed on the bathroom floor pan, the drain pan is raised by the rise of the drain pan. Can be prevented and hot and cold water can flow smoothly.

Accordingly, there is no danger that the drain lid rises and deviates from the proper position, and there is no danger of putting the foot on the drain lid and stepping on it without knowing it, which is safe. Moreover, since hot water does not accumulate on the floor pan, it is sanitary. In addition, since the water hole is not formed on the upper surface of the drain lid, it is safe that an infant does not insert his / her finger into this water hole and is injured.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an example of usage of a drainage mouth lid for a bathroom floor pan according to the invention of claim 1, wherein (a) is a sectional view and (b) is a perspective view.

FIGS. 2A and 2B show an example of a usage mode of a drainage mouth lid of a bathroom floor pan according to the invention of claim 2, wherein FIG. 2A is a cross-sectional view and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS A Drainage mouth lid B Drainage mouth lid 10 Flat lid 11 Annular lid support frame 12 Plural holes 20 Bathroom floor pan 21 Drainage port 22 Drainage step 25 Drainage groove 26 Plural lid stopper legs

Claims (4)

[Claims] 1. An annular lid support frame is provided on the back side of a flat lid, and a plurality of holes are provided in a corner formed by the flat lid and the lid support frame or a lid support frame. The bathroom floor pan drainage palate. 2. An annular lid support frame is provided on the back side of the flat lid, and a plurality of lid stopper legs are provided on the back side of the flat lid and inside the lid support frame. Bathroom floor pan drain lid. 3. A drain port lid for a bathroom floor pan, wherein an annular lid support frame is provided on the back side of the flat lid, and a plurality of notches are provided in the lid support frame. 4. The bathroom floor pan according to any one of claims 1 to 3, comprising a low foam plastic molded article or a low foam fiber reinforced plastic molded article having a specific gravity of more than 1.0. Drain palate.