JPH1162283A - Waterproof pan structure of bathroom unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the labor of cleaning, etc., and reduce the cost by reducing the size of a drain with a grating as much as possible. SOLUTION: A waterproof pan comprises a washing area pan 1 and a bathtub pan 2, and a drain 5 having a grating 4 is formed in the vicinity of the washing area pan 1. A drain port 3 is opened in the bathtub side of the washing area pan 1, clearances 13, 14 for water passage are formed between a lower edge of a bathtub apron 7 and the bathtub pan, the downward gradient passing to a bottom part of the drain port 3 is set on the inner bottom part of the bathtub pan 2, and most of hot water overflowing from the bathtub once flows into the inner bottom part of the bathtub pan 2, and then, flows into the drain port 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof pan structure for a bathroom unit, and more particularly, to a drainage structure provided with a drainage groove with a grating around a washing place.

[0002]

2. Description of the Related Art In recent years, some bathroom units have no step at the entrance so that the elderly and disabled persons can enter and exit the bathroom without any trouble.

In such a bathroom unit, a drain ditch covered with grating is provided around the washing place so that when a large amount of hot water overflows from the bathtub at one time, the hot water does not flow out of the bathroom from the washing place. The drains collect hot water overflowing the washing area.

FIGS. 5 and 6 show such a conventional example. FIG.
Is a plan view of the interior of the bathroom unit, and FIG. 6 is (d) of FIG.
It is an expanded sectional view in the-(d) line.

In FIG. 5, reference numeral 20 denotes a bath tub, 21 denotes a washing pan, 22 denotes a drain with a grating, and 23 denotes a drain of the washing. In this example, the drainage grooves 22 with gratings are provided on two sides of the three surroundings except for the bathtub side of the washing pan 21.

In FIG. 6, reference numeral 24 denotes a bathtub pan, reference numeral 25 denotes an apron on the front of the bathtub 20, and reference numeral 26 denotes a door or sliding door at the entrance of the bathroom.

In this type of bathroom unit, the waterproof pan is constituted by a washing pan 21 and a bathtub pan 24 connected thereto. Although the bathtub pan 24 is lower than the washing pan 21, a weir 27 is formed on the bathtub side of the washing pan 21, and the lower edge of the bathtub apron 25 is attached to the bathtub pan 24. The hot water is not allowed to flow into.

[0008]

In the above-mentioned bathroom unit, in order to collect hot water overflowing on the washing place so as not to flow out of the room, the width and depth of the drainage groove 22 with the grating around the washing place are considerably increased. Need to be bigger.

However, if the drain groove 22 is large, the portion to which dirt adheres will increase, and cleaning will be troublesome and the burden on the user will increase.

Further, since a large grating must be used in accordance with the size of the drain groove 22, it is not preferable in terms of cost.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, the present invention reduces the size of a drain with a grating as much as possible by reducing the size of a drain with a grating by making hot water overflowing from a bathtub quickly flow into a drain. And to reduce costs.

[0012]

In order to achieve the above object, the present invention comprises a waterproof pan comprising a washing pan and a bathtub pan connected thereto, and a drain with a grating is formed around the washing pan. In the waterproof pan structure of the bathroom unit, a drain port is opened on the bathtub side of the washing pan, and a gap for water flow to the inner bottom of the bathtub pan is formed between the drain pan and the lower edge of the bathtub apron, A downslope leading to the bottom of the drain port was set on the inner bottom of the bathtub pan.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a plan view showing an entire waterproof pan according to an embodiment of the present invention, and FIGS.
Are (a)-(a) lines and (b)-(b) in FIG.
It is an expanded sectional view in a line or a (c)-(c) line.

In FIG. 1, reference numeral 1 denotes a washing pan, 2 denotes a bath pan, and both are connected to each other to constitute a waterproof pan. Reference numeral 3 denotes a drainage port of a washing place, 4 denotes grating, 5 denotes a drain ditch covered with the grating 4,
Reference numeral 6 denotes a raised portion formed on the inner bottom of the bathtub pan 2 for supporting the bathtub and the like. In this embodiment, the drainage grooves 5 with the grating are provided in a U-shape around three places except the bathtub side of the washing pan 1.

The drain 3 of the washing place is opened at a central portion adjacent to the bathtub side of the washing pan 1, but as shown in FIG. Box-shaped container part 3a that receives drainage at the lower side only in the part
Are formed so as to protrude from the bathtub pan 2 so as to bite into the washing pan 1 side. Container part 3a of this drain port 3
Is formed slightly deeper than the main body of the bathtub pan 2 and is continuous with the main body of the bathtub pan 2.

On the other hand, in the main body portion of the bathtub pan 2, the inner bottom except the raised portion 6 has a downward slope toward the container portion 3a of the drain port 3, and all the hot water flowing into the inner bottom portion is drained.
Into the container portion 3a.

In FIG. 2, reference numeral 7 is a bathtub apron provided on the front of the bathtub, 8 is a drain trap connected to the container 3a of the drain port 3, 9 is a door or sliding door at an entrance, and 10 is a sill. .

As shown in FIG. 3, a shallow water collecting groove 11 and a low weir 1
2 are formed. The water collecting groove 11 and the weir portion 12 are for collecting hot water on the drain port 3 side, and are formed along the front surface of the bathtub from the drain port 3 to a position immediately before the drain groove 5.

The bathtub apron 7 has a lower edge hanging right above the weir portion 10 or at a position retreating toward the bathtub side. In the conventional bathroom unit, the lower edge of the bathtub apron and the weir portion of the washing pan are water-tightly connected. In the present invention, however, the bathtub apron 7 and the weir portion 12 of the washing pan 1 are separated from each other. There is a gap 13 between them. The left and right portions of the bathtub apron 7 are fixed to a bathtub or a wall panel of a bathroom.

Further, among the portions of the drainage grooves 5 with gratings provided around the washing pan 1, the portion toward the bathtub has a downward slope toward the bathtub pan 2, as shown in FIG. The inclined lower end is opened inside the bathtub pan 2. Even at this opening, the lower edge of the bathtub apron 7 is separated from the washing pan 1, and there is a water gap 14 between them.

Next, the operation of the above configuration will be described.

When a large amount of hot water overflows from the bathtub at a time, a large part thereof flows down along the surface of the bathtub apron 7.

In this case, the lower edge of the bathtub apron 7 faces directly above the weir portion 12 on the bathtub side of the washing pan 1 or at a position retreating into the bathtub side therefrom.
The hot water flowing along the surface of the bathtub apron 7 flows into the inner bottom of the bathtub pan 2 because there is a gap 13 between the bathtub apron 7.

When hot water enters the inner bottom of the bathtub pan 2, the hot water flows along a gradient formed in the inner bottom and flows into the bottom of the drain port 3, specifically, the container 3a of the drain port 3. ,
From there, the water is drained to the outside via the drain trap 8.

Most of the hot water that has overflowed from the bathtub and spilled directly onto the washing place is backflowed along the slope of the washing place pan 1 and flows into the drain port 3 from the water collecting groove 11. However, some hot water flows into the drain 5 around the washing place.

In this case, the drain ditch 5 has a downward slope toward the bathtub pan 2, and the lower end of the slope is opened on the bathtub pan 2. It flows to the bathtub side, passes through the gap 14 between the lower edge of the bathtub apron 7 before the bathtub, flows into the inner bottom of the bathtub pan 2, and further flows from the inner bottom to the bottom of the drain port 3. It will be drained.

As described above, most of the hot water overflowing from the bathtub flows into the inner bottom of the bathtub pan 2 from the gaps 13 and 14 below the bathtub apron 7 and is drained, and thus overflows onto the washing place. The amount of hot water that reaches the drain 5 on the side of the door 9 at the entrance is reduced accordingly.

Moreover, of the hot water overflowing the washing area,
Since the hot water flowing into the drain 5 flows into the inner bottom of the bathtub pan 2 and quickly flows out of the drain 5, the drainage is quick, and the hot water does not overflow from the drain 5, and the water surely flows. Collected and drained.

In the above embodiment, the washing pan 1
Although the weir portion 12 is partially provided on the side of the bathtub, such a weir portion may be omitted, and hot water on the washing place may directly flow into the inner bottom of the bathtub pan 2.

In the above embodiment, the container portion 3a of the drain port 3 is formed on the side of the bathtub pan 2. However, if the joint can be reliably waterproofed, the edge portion of the drain port 3 and the container portion can be used. 3a
May be integrally formed on the washing pan 1 side, or the container 3a of the drain port 3 may be formed separately from the washing pan 1 and the bath pan 2.

[0031]

According to the present invention, since a large part of the hot water overflowing from the bathtub is once taken into the inner bottom of the bathtub pan and drained, the amount of hot water flowing out to the washing place is reduced accordingly. For this reason, the width and depth of the drain with a grating around the washing place can be reduced, and the user's labor such as cleaning the grating and the drain can be reduced. Moreover, the cost can be reduced because the grating can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of an entire waterproof pan according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line (A)-(A) of FIG.

FIG. 3 is an enlarged cross-sectional view taken along line (b)-(b) of FIG.

FIG. 4 is an enlarged sectional view taken along line (c)-(c) in FIG.

FIG. 5 is a plan view of the interior of a bathroom unit having a conventional waterproof pan.

6 is an enlarged cross-sectional view taken along line (d)-(d) of FIG. 5 and shows a cross-sectional structure of the waterproof pan.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Washing pan 2 Bath tub 3 Drain 4 Grating 5 Drainage 7 Bath tub apron 13, 14 Gap

Claims (1)

[Claims] 1. A waterproof pan structure of a bathroom unit having a waterproof pan comprising a washing pan and a bathtub connected to the washing pan, wherein a drainage groove with a grating is formed around the washing pan. A drainage opening is formed in the bathtub apron, and a gap for water flow to the inner bottom of the bathtub pan is formed between the lower end of the bathtub apron and a downward slope leading to the bottom of the drainage opening in the inner bottom of the bathtub pan. The waterproof pan structure of the bathroom unit, characterized by being set.