JPS6151221B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shower device that heats water for showering using a bathtub that heats water in a bathtub.

Adjacent to the bathtub, a balanced-fluid or external-fired bathtub with a heat exchanger that heats the water using a gas burner or the like is installed, and the water in the bathtub is drained from the suction port installed at the bottom of one side wall of the bathtub. If the bath has a structure in which water is drawn into a heat exchanger in the pot and heated, and then the heated water is discharged into the bathtub from an outlet installed at the top of one side wall of the bathtub, the hot water for rising or showering is In order to achieve this, it is necessary to install an instantaneous water heater separate from the heat exchanger for heating the water in the bathtub, making the bathtub large, complex in structure, and expensive.

The purpose of this invention is to solve the problems of conventional bathtubs as described above.

That is, the present invention provides a holder having a plurality of sides in the axial direction along the inner surface of a communicating pipe connected to a suction port and a discharge port provided on one side wall of the bathtub. Deformation means for deforming outward is provided, and claws are provided on the outside of the ends of each side to engage with the engaging portion of the communication pipe when each side is deformed outward, and one end is connected to a water supply such as a water supply. The other end of the water supply hose connected to the bathtub and the other end of the shower hose with a shower head provided at one end are provided with a gasket on the periphery of the end that covers the holder connected to the suction port and the discharge port and is in close contact with the inner wall surface of the bathtub. cylindrical covers having the same structure are connected to each other so that the inside of the cover is communicated with each of the hoses, and a tubular part is provided inside the end wall of each cover to fit into a fitting cylinder at an end of each holder,
The fitting tube and the tubular portion are provided with removable engagement means.

An embodiment of the inventive device will be described in detail below with reference to the accompanying drawings.

In the figure, 1 is a bathtub, and 2 is a bathtub provided on one side of the bathtub. Inside this bathtub, a gas burner and a heat exchanger that heats with the gas burner are installed as is well known, and the discharge side of this heat exchanger is communicated with the outlet on the side wall of the bathtub 1 through a communication pipe 3. The suction side of the exchanger communicates with a suction port in the side wall of the bathtub 1 through a communication pipe 4. Figure 2 shows the communication pipe 3 on the discharge port side.
This shows the connected state of the bathtub 1, where the communication pipe 3 passes through the side wall of the bathtub 1, a gasket 6 is sandwiched between the inner end flange 5 and the side wall of the bathtub 1, and a nut is screwed into the external male thread of the communication pipe 3. It is designed to be tightened at 7.

A is a holder, which is horizontally U-shaped when viewed from the side as shown in Fig. 2, and its upper and lower sides 8 are curved in an arc shape as shown in Fig. 4, so as to follow the inner surface of the communication pipe 3; On the outer side of the tip of each side 8, a claw 9 is provided that bites into the inner surface of the communication tube 3, using the inner surface as an engaging portion.

Although one claw 9 is formed on each side 8 in the illustrated example, a plurality of claws 9 may be formed on each side 8. Also, side 8
does not necessarily have to be an arcuate shape, but any shape that can fit into the communication pipe 3 is sufficient.

10 is a bolt rotatably inserted into an insertion hole 11 provided on one side 8; 12 is a nut screwed and fixed to this bolt 10; This is to prevent it from moving.

Further, the other side 8 is provided with a screw hole 13 into which the bolt 10 is screwed, and when the bolt 10 is turned in the direction in which it is screwed into the screw hole 13, the upper and lower sides 8 deform inwardly and approach, and the claw 9 When separated from the inner surface of the communicating tube 3 and turning the bolt 10 in the opposite direction, the upper and lower sides 8 are deformed outward, and the upper and lower claws 9 form a deforming means that bites into the inner surface of the communicating tube 3.

Reference numeral B denotes a cylindrical cover, which is composed of an end wall 14 and a cylindrical wall 15, and a gasket 16 that is in close contact with the inner wall surface of the bathtub 1 is attached to the periphery of the front end of the cylindrical wall 15.

The rear end of the tubular portion 17 is fitted into a recess inside the center of the end wall 14 and joined together by means of adhesive or the like, and a pair of projections 18 are provided on the outer peripheral surface of the tubular portion 17 as engagement portions.

Further, a fitting cylinder 19 into which the tubular portion 17 is detachably fitted is integrally formed in the center of the holder A, and a pair of axial grooves 20 through which the projections 18 can pass are formed in the fitting cylinder 19. Each groove 20 is provided on the inner end surface of the fitting tube 19 as an engaging portion with which the projection 18 engages.
A spiral inclined surface 21 is formed starting from the inner end of the holder to constitute a removable engagement means.

22 is a valve body fitted in the tubular part 17, and a spring 23
The valve port 24 at the inner end of the tubular portion 17 is closed, and when the water pressure inside the cover B reaches a certain pressure or more, the valve body 22 is pushed open and the water inside the cover B is discharged from the outlet 25 at the center of the end wall 14. Allow it to be drained.

Reference numeral 26 denotes a disk-shaped valve plate, which is placed on the inside of the end wall 14, and whose central opening is rotatably fitted into the annular portion 27 on the inner periphery of the end wall 14.
It is supported by a collar 28 on the outer periphery of 7.

The valve plate 26 is made of an elastic material such as rubber, and has a plurality of openings 29 formed at equal intervals on a circumference concentric with the rotation center of the valve plate 26. When the openings 30 are arranged in the same position and both openings 29 and 30 match, the inside and outside of the cover B are in communication, and when the openings 29 and 30 are completely shifted, the cover B
The inside is closed off from the outside, and a knob 31 fixed to a part of the valve plate 26 is made to protrude to the outside through a part of the opening 30.
1, a notch 32 for rotating the valve plate 26 is provided.

33 is a hose attachment nipple provided on the upper side of the cover B. A shower hose 34 is connected to this nipple as shown in FIG. 1, and a shower head 35 is attached to the end of this hose 34.

B' in Figure 1 is the same as cover B in Figure 2,
The attachment means for the inner end of the communication pipe 4 are also exactly the same. However, in the case of cover B', the valve body 22, spring 23, and discharge port 25 are unnecessary. However, the tubular portion 17, the valve plate 26, the openings 29, 30, etc. are necessary. A hose attachment nipple 33 is also provided at the lower part of the cover B', a water supply hose 36 is connected to this nipple 33, and its end is connected to a water tap 37, such as a water supply, as an example of a water supply section.

FIG. 5 shows a case where there is a protrusion 38 for engaging a wrench on the inside of the communicating pipe 3 or 4. In this case, this protrusion 3
The claws 9 on each side 8 of the holder A are engaged with the protrusions 38, with 8 serving as an engaging portion for the claws 9.

In addition, in the embodiments shown in FIGS. 1, 2, and 5, the communication pipes 3 and 4 are directly connected to the bathtub 2, but the
The figure shows a flexible hose 39 connected to the communication pipes 3 and 4 and fixed with a tightening band 40, and this hose connected to the bathtub 2.
This shows the case where it is connected to. In this case, since the communicating tubes 3 and 4 are short, the outer ends of the communicating tubes 3 and 4 are used as engaging portions, and the claws 9 on each side 8 of the holder A are engaged with the outer ends of the communicating tubes 3 and 4. It is better to match.

This invention has the above configuration, and each cover B,
B' fits the tubular part 17 into the fitting cylinder 19 of each holder A, and after letting the protrusion 18 reach the inner end of the tubular part 17 through the groove 20, the tubular part 17 is inserted together with holders B and B'. By turning the protrusion 18 along the inclined surface 21, the holders B and B' move forward, and the gasket 16 at the front end thereof is fixed in close contact with the inner wall surface of the bathtub 1.

After fixing each cover B, B' to each holder A in this way, with the opening 30 of each cover B, B' closed by the valve plate 26, the burner of the bath pot 2 is ignited, and the water tap 37 is opened. Fresh water from the tap etc. is supplied to hose 3.
6, flows into the cover B', enters the heat exchanger of the bath pot 2 through the suction ports from both sides of the holder A therein, is heated by a gas burner, and enters the communication pipe 3.
Hot water passes through both sides of the holder A from the outlet at the end, passes through the cover B, the nipple 33, and the hose 34, and then comes out from the shower head 35.

In this case, the amount of hot water is controlled by adjusting the degree of opening of the faucet 37 to change the flow rate. Furthermore, if the water pressure is high while the shower is in use, the heat exchanger of the bathtub 2 may become punctured if the water tap is opened too much. However, if the cover B on the discharge port side is provided with a valve port 24 that is closed by a valve body 22 pushed by a spring 23 as shown in the illustrated example, the cover B
There is no danger because the valve body 22 is pushed open by the water pressure and the high-pressure hot water escapes into the bathtub 1 before the water pressure inside reaches a dangerous level.

When the bathtub 2 is used for heating bathtub water, turn the valve plates 26 of each cover B, B' so that the openings 29 of the valve plates 26 match the openings 30 of the covers B, B'. It is heated by circulating through the bath pot 2.

However, it is of course possible to circulate the bathtub water into the bathtub 2 even if the covers B and B' are removed from each holder A without the valve plate 26 and the openings 29 and 30.

As described above, the present invention is capable of heating fresh water from a tap or the like and discharging it from the shower head 35 using the conventional balanced-flue type or external firing type bathtub 2. For the connection between the water supply hose 36 and the outlet and suction ports of the bathtub 1, cover B is placed over holder A fixed to these outlet and suction ports, and the tubular portion 17 of cover B is placed over the fitting cylinder 19 provided on holder A. Insert and cover B
Since the connection is made by the engagement between the engaging part of the holder A and the engaging part of the holder A, the cover B is firmly attached and there is no risk of it coming off during use. Because the water supply hose 36 and hot water flowing into the shower hose 34 come into close contact with the inner wall of the bathtub 1,
There is no risk of leakage. Further, the upper and lower sides 8 of the holder A are simultaneously deformed in the inward and outward directions by a deforming means such as a bolt 10, and each side 8 is deformed inwardly and outwardly by the action of the deforming means, and serves as an engaging portion for the claw 9. The claws 9 on the inner surfaces of the communication pipes 3 and 4
The bathtub 2 and the communicating tubes 3 are stopped by biting in, or by engagement of the claws 9 with the protrusions 38 on the inner surfaces of the communicating tubes 3 and 4, or by engagement of the claws 9 with the outer ends of the communicating tubes 3 and 4. Alternatively, even if the structure of the connecting portion 4 is different, the holder A and the communication pipe 3 or 4 can be reliably connected. In addition, holder A and cover B
In addition to the projection 18 and inclined surface 21 as shown in the illustrated example, other mechanisms such as a male thread and a female thread may be used as the detachable engagement means.

[Brief explanation of the drawing]

FIG. 1 is a partially longitudinal side view showing an embodiment of the device of the present invention, FIG. 2 is an enlarged longitudinal side view of the main part of the same,
Figure 3 is an enlarged front view of the cover, Figure 4 is a partially cutaway exploded perspective view of the tubular part of the cover and the holder, and Figure 5 is an exploded perspective view of the cover's tubular part and holder.
FIG. 6 is an enlarged longitudinal sectional side view showing another example of the joint portion between the holder and the communication tube. 1...bathtub, 2...bath pot, 8...side, 9...
Claw, 17... Tubular part, 18... Protrusion, 19... Fitting cylinder, 21... Inclined surface, 34... Shower hose, 35... Shower head, 36... Water supply hose, 37... Water faucet, A ...Holder, B...Cover.

Claims (1)

[Scope of Claims] 1. A bathtub with a bathtub provided with a suction port and a discharge port on one side of the bathtub so that bathtub water sucked in from the suction port is heated by the bathtub and discharged from the discharge port into the bathtub. A holder is provided having a plurality of sides in the axial direction along the inner surface of the communication pipe connected to the suction port and the discharge port, and the holder is provided with deformation means for simultaneously deforming each of the sides inward or outward, A hook is provided on the outside of the end of each side to engage with the engaging part of the communication pipe when each side is deformed outward, and the other end of the water supply hose is connected to a water supply part such as a water supply. One end of the shower hose has a shower head, and the other end of the shower hose is connected to a cylindrical cover that covers the holder connected to the suction port and the discharge port and has a gasket on the periphery of the end that tightly contacts the inner wall surface of the bathtub. The inside of the cover is communicated with each of the hoses, and a tubular part that fits into the fitting cylinder at the end of each holder is provided on the inside of the end wall of each cover, and the fitting cylinder and the tubular part have a removable engagement. A shower device equipped with a means for showering. 2. The shower device according to claim 1, wherein the engaging portion of the communicating tube is an inner surface of the communicating tube, and claws on each side of the holder bite into and engage with this inner surface. 3. The shower device according to claim 1, wherein the engaging portion of the communicating tube is a protrusion on the inside of the communicating tube, and claws on each side of the holder engage with this protrusion. 4. The engaging portion of the communicating tube is the outer end of the communicating tube,
2. The shower device according to claim 1, wherein claws on each side of the holder engage with an outer end of the communication pipe.