JP2002106001A - Bathroom unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall rear side piping capable of minimizing a space between the rear surface of the wall panel of a bathroom unit and a building frame and assuring a sufficient feed water volume and durability. SOLUTION: This bathroom unit comprises a water feed pipe and a hot water feed pipe led from the underside of the floor pan of the bathroom unit and a connection pipe connected from the water feed pipe and the hot water pipe to a water faucet hardware installed in the bathroom unit. A shower pipe is laid down from the water faucet hardware along the wall rear side of the bathroom unit, and separated from the water faucet hardware to form a shower discharge water channel. The wall rear shower pipe is generally identical in sectional area with that of the water feed pipe and hot water feed pipe, and formed to a flat shape. Thus, since the same amount of sectional area can be achieved with less depth, the passing water amount can be assured sufficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to piping arranged behind a wall for supplying hot and cold water to a unit bath, and more particularly to a piping behind the wall which is suitable when the gap between the back side of the unit bath wall panel and the building frame is small. .

[0002]

2. Description of the Related Art In recent years, as shown in FIG. 1, water is supplied from below a floor pan to the interior of a bathroom, a hot water supply pipe is started up, a water supply hot water supply pipe is connected to a faucet fitting on a washing area side, and a shower is connected to the faucet fitting. A unit bathroom has been put on the market that allows the end of the shower hose to enter the room from a high wall position so that the hose does not lie on the floor. In this case, as shown in FIG. 2, the shower water flow pipe 2 branched from the faucet fitting 1 installed in the unit bathroom is a pipe 3 having a diameter substantially the same as that of the hot water supply pipe.
And is connected via a wall opening hole 7a to a lower elbow 4a of the back wall pipe 5 having an elbow 4ab connected to the upper and lower ends. Further, the shower hose connecting fitting 6 is connected to the upper elbow 4b via a wall opening hole 7b at a high position of the wall.

However, in this method, since a cylindrical pipe having substantially the same diameter as the hot water supply pipe is screwed or brazed into the elbow, the space between the back surface of the wall panel and the building frame is
Only the outer diameter of the pipe + the thickness of the elbow x 2 is the minimum required. For this reason, the space between the building frame 8 and the back surface 9 of the unit bathroom water flow side wall panel usually needs to be secured to 50 to 100 mm. The space between the building and the building 10
In order to reduce the diameter of the pipe 3, it is necessary to reduce the diameter of the pipe 3 and the thickness of the elbow 4, so that there is a problem that the flow rate of the shower water cannot be secured and the strength cannot be secured.

[0004]

In a conventional pipe behind a wall having elbows at both ends of a cylindrical pipe, as shown in FIG. 3, the space between the back of the wall panel and the building frame is generally ( Pipe outer diameter D + elbow wall thickness t × 2) is required at a minimum. In this case, if the space between the back of the wall panel and the building frame becomes smaller, it is necessary to reduce the diameter of the pipe and the thickness of the elbow, so that sufficient water flow cannot be secured. Strength and durability must be sacrificed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to minimize the space between the back surface of a wall panel and a building frame, and to provide a sufficient water flow rate and durability. An object of the present invention is to provide a back wall pipe which ensures the performance.

[0006]

According to the first aspect of the present invention, since the flat pipe is used, the same cross-sectional area can be achieved with a small depth, so that a sufficient amount of water can be secured.

According to the second aspect of the present invention, an opening is provided in the pipe main body so that the inflow and outflow of shower water can be performed. Therefore, an elbow is not required, a space for the thickness of the elbow is saved, and the thickness of the leg piping is set large. Therefore, it is possible to eliminate the cause of the strength reduction.

According to the third aspect, if a long flat tube is prepared, the pipe can be economically obtained by cutting it into a predetermined length and plugging the opening.

According to the present invention, it is possible to reduce the amount of water staying from the end of the pipe to the inflow hole and the outflow hole, which is undesirable in controlling the shower temperature and the durability of the pipe.

According to the fifth aspect, when it is difficult to provide an opening hole on the side surface of the flat tube, it is possible to secure an inflow hole and an outflow hole to the tube.

[0011]

FIG. 4 shows the shape of the pipe behind the wall according to the first to third embodiments, and FIG. 5 shows the state where the pipe behind the wall is attached to the unit bathroom.

The material is SUS304 or SUS316
A plate having a thickness of 0.5 to 3 mm was roll-formed to form an ellipse having a major axis of 10 to 40 mm and a minor axis of 5 to 15 mm, and the plate edge was continuously welded to form a flat tube. The cross-sectional shape may not be elliptical, but may be a shape in which both ends of parallel lines are connected by a semicircle as shown in FIG. 6, or may be a rectangle. Instead of forming a flat shape by roll forming, an existing cylindrical pipe may be formed into a flat shape by press forming. Cut the tube to length,
A flat pipe 11 was obtained. The openings 12 at both ends of the flat pipe 11
The watertightness was ensured by welding the stopper 13 made of the same material as the pipe and the periphery of the pipe hole. The watertightness of the openings at both ends may be crushed into a line by a press or the like without using the plug 13, and the joining line may be welded. An outer diameter of Φ10 to Φ40, a length that can penetrate the wall panel and fit enough to the shower water pipe 2 or the shower hose fitting 6, a thickness of 1 to 4 mm and a shape along the pipe curved surface 14 A cut leg pipe 15 was prepared and welded to a predetermined position of the flat pipe. Furthermore, piping curved surface 14
On the upper surface 16 surrounded by the pipe 15, a hole 17 having an inner diameter of the pipe 15 or smaller was formed so as to penetrate the pipe curved surface 14.

[0013] By the above steps, the installation dimensions from the back of the wall panel are smaller than those of the conventional pipes, and a sufficient amount of water can be passed through the back of the wall. Even if the gap between the back of the wall panel and the building frame is small, the shower hose can be used. I got a unit bathroom that I could get out of the wall.

FIG. 7 shows a back wall piping structure according to an embodiment of the present invention. The plug 18 has a hole 17 in the opening 12 at both ends of the flat tube.
The length was such that it could reach the vicinity of the outer circumference, and the gap outside the hole 17 in the pipe was minimized. FIG. 8 shows a back wall piping structure according to the fifth embodiment. Funnel-shaped members 20a and 20b provided with an inlet 19a and an outlet 19b in a direction perpendicular to the flat tube were welded to the opening 12 at both ends of the flat tube cut to a predetermined length.

[0015]

According to the present invention, the following effects are exhibited by the above configuration. In the first aspect, since the flat pipe is used, if it is installed so that the major axis is parallel to the rear surface of the wall panel, the inner wall has a rear wall pipe that can sufficiently secure a water flow rate, and the installation dimension from the rear surface of the wall panel is the conventional size. It is possible to realize a pipe behind the wall that has less water flow than the pipe and has a sufficient water flow rate, and obtains a unit bathroom where the shower hose can exit from the wall even if the gap between the back of the wall panel and the building frame is small.

According to the second aspect, since the elbow is not required, the thickness of the elbow required for inserting and fixing the pipe can be eliminated, and the space on the back surface of the wall panel can be reduced.

In the claim 3, it is possible to cut a continuously formed inexpensive flat tube to a predetermined length and cover the openings at both ends, so that the tube can be provided for piping, which is economical.

In the present invention, the volume of the plug in the pipe is increased to reduce the amount of water remaining in the pipe.

According to a fifth aspect of the present invention, there is provided a means for inflow and outflow of shower water without making a hole in a side surface of a pipe.

[Brief description of the drawings]

FIG. 1 is an overview of a unit bath provided with a wall-out shower applied to the present invention.

FIG. 2 is a schematic view showing a state where a conventional back wall pipe is mounted.

FIG. 3 is a structural view (part) showing a conventional back wall pipe.

FIG. 4 is a view showing a cross sectional structure of a flat pipe according to the present invention.

FIG. 5 is a schematic view showing a flat pipe mounting state according to the present invention.

FIG. 6 is an example of a cross-sectional shape of a flat tube other than an ellipse.

FIG. 7 is a structural diagram (part) showing an embodiment according to claim 4;
It is.

FIG. 8 is a diagram showing a back wall piping structure according to an embodiment of claim 5;

[Explanation of symbols]

 1: water faucet fitting 2: shower water flow pipe 3: pipe (circular section is a perfect circle) 4: elbow 5: wall piping 6: shower hose connecting fitting 7: wall opening hole 8: building frame 9: wall panel back 10 : Space between the back of the wall panel and the building frame 11: Flat pipe 12: Opening 13: Plug 14: Pipe curved surface 15: Pipe 16: Surface 17: Hole 18: Plug for removing accumulated water 19a: Inlet 19b: Outlet 20ab: Funnel-shaped part

Claims (5)

[Claims] 1. A water supply / hot water supply pipe introduced from below a floor pan of a bathroom unit, and a connection pipe connecting the water supply / hot water supply pipe to a water faucet installed in the bathroom unit. Line the shower pipe behind the wall of the bathroom unit,
A bathroom unit, which is separated from the faucet fitting to form a shower water discharge channel, wherein the shower pipe behind the wall has substantially the same cross-sectional area as the water supply and hot water supply pipes, and has a flat shape. . 2. The bathroom unit according to claim 1, wherein the shower pipe has an inflow port and an outflow port below and above, respectively, and leg pipes are formed so as to cover the respective openings. 3. The bathroom unit according to claim 2, wherein upper and lower ends of the shower pipe are watertightly fixed by lid members. 4. The bathroom unit according to claim 3, wherein the lid member is inserted into the inside of the shower pipe, and is loaded up to the vicinity of the inflow port and the outflow port. 5. The bathroom unit according to claim 1, wherein the shower pipe is formed of a separate joint having an inflow port and an outflow port below and above.