JPS5833475Y2 - Hot water circulation bathtub - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hot water circulation bathtub in which a circulation pipe and a cover are attached and fixed to a frame attached to the inner surface of the side wall of the bathtub.

A so-called hot water circulation bathtub, in which hot water heated externally is circulated through a circulation pipe installed inside the bathtub, and the bath water is indirectly heated by the hot water, has a structure in which the circulation pipe is placed on the bottom of the bathtub. There are two types: one with a structure attached to the inner surface of the side wall of the bathtub.

However, the former method has the disadvantage that not only is it difficult to clean the bottom of the bathtub and is unhygienic, but also that hot water rises from below when the bathtub water is heated, making it impossible to enjoy a comfortable bath.

On the other hand, in the latter case, the above-mentioned drawbacks are eliminated, but on the other hand, mounting the circulation pipe to the inner surface of the side wall of the bathtub poses problems in terms of work and fixing.

In other words, in this case, when installing or fixing the spirally wound circulation pipe to the inner surface of the bathtub side wall, it is necessary to support the entire circulation pipe in advance. The connection work is troublesome because it has to be connected to the pipe, and even after the connection work, if the circulation pipe is supported only by the strength of the connection with the external pipe, there will be problems when the circulation pipe inside the bathtub moves. This is because the connection part is likely to become unstable, and water leakage from the connection part is likely to occur.

However, until now, no hot water circulation bathtub has been found that has a structure in which the entire circulation pipe is easily and reliably fixed to the inner surface of the side wall of the bathtub.

In view of the above points, the present invention makes it possible to easily and reliably fix the entire circulation pipe to the inner surface of the side wall of the bathtub, thereby facilitating the connection work between the circulation pipe and the external pipe. The purpose of this invention is to prevent water leakage from the connecting portion, and embodiments of the present invention will be described below with reference to FIGS. 1 to 3.

Reference numeral 1 denotes a frame made of metal or synthetic resin and formed by bending the top and bottom of a plate-shaped body.

This frame 1 is screwed to both sides of the inner surface 4a of the bathtub side wall 4 via banking 6 by means of screws 2 and nuts 3.

5 is an adhesive for fixing the nut 3, which is used as necessary.

Reference numeral 8 denotes a hook-shaped locking member provided below the frame 1, so that the circulation pipe 7 can be supported by this.

Reference numeral 9 denotes a stop plate having a substantially U-shaped cross section. This stop plate 9 is held down by placing its lower part in contact with the inside of the locking member 8, and only the upper part is fixed to the frame 1 with screws 10. The circulation pipe T is clamped and fixed to the frame 1 by a stop plate 8.

Note that the stop plate 9 does not necessarily have to have a ]-shaped cross section, but by making it have a ]-shape, when the lower part of the stop plate 9 is brought into contact with the inside of the locking member 8, the lower part of the stop plate 9 will be This has the effect of not moving laterally.

Reference numeral 11 denotes a cover molded from heat-resistant synthetic resin or the like and used to cover the frame 1, circulation pipe 7, etc. for safety and appearance reasons.This cover 11 is fixed to the upper button and lower part of the frame 1 with decorative screws 12. ing.

The cover 11 is large enough to cover the circulation pipe γ and the frame 1, and is attached so as to have an appropriate gap 15 between it and the inner surface 4a of the bathtub side wall 4 for hot water circulation. The circulation pipe promotes the convection of hot water, improving heat exchange efficiency.

Further, the cover 11 may be provided with a suitable hole or the like.

13 is an external pipe, which is connected to the circulation pipe 7 by an adapter 14.

Next, to explain the connection work and fixing of the circulation pipe T with the external pipe 13, when installing the circulation pipe γ on the inner surface 4a of the bathtub side wall 4, first, the inner surface 4a of the bathtub side wall 4
Attach the frame 1 to a and support the circulation pipe 7 by placing it on the locking member 8 provided at the bottom of the frame 1. At this stage, after connecting the circulation pipe 7 and the external pipe 13, the stop plate 9 is A locking member 8 whose lower part is provided below the frame 1
Circulation pipe T supported by this locking member 8
The upper part of the stop plate 9 is screwed onto the frame 1, the circulation pipe 7 is clamped and fixed between the frame 1 and the stop plate 9, and the cover 11 is inserted between the frame 1 and the stop plate 9. Install.

The connection work between the circulation pipe 7 and the external pipe 13 may be performed after the circulation pipe 7 is clamped and fixed between the frame 1 and the stop plate 9.

As described above, the present invention includes a frame that is attached to the inner surface of the side wall of the bathtub and has a hook-shaped locking member at the bottom, and the lower part is held down by the locking member of the frame and the upper part is screwed to the frame. Since the structure is such that the circulation pipe is clamped and fixed between the stop plate, when connecting the circulation pipe to an external pipe, it is necessary to place the circulation pipe on the locking member provided below the frame. The entire circulation pipe will be supported by placing it on the frame, so doing so will make it easier to connect the pipes as there is no need to support them by hand. Even if the connection is to be made later, since the circulation pipe is completely fixed, the connection position of the piping is fixed and the connection work becomes easy.

Furthermore, the stop plate is held down by bringing the lower part of the stop plate into contact with a hook-shaped locking member provided below the frame, and only the upper part of the stop plate is screwed to the frame. The disadvantage of screwing the stop plate both above and below the stop plate is that the lower part of the stop plate is difficult to see because it is in the shadow of the circulation pipe, so screw tightening and unscrewing work must be done using a screwdriver etc. However, in the present invention, the lower part of the stop plate is held in place by abutting against the hook-shaped locking member. The stop plate itself is easy to install and remove.

In addition, the circulation pipe is sandwiched between the frame and the stop plate in this way and is securely fixed, so that there is no need to worry about water leaking from the connection parts or the like.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing the installation state of the circulation pipe in the hot water circulation type bathtub according to the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is the installation state of the circulation pipe. It is a perspective view showing the details of the section. Explanation of symbols, 1...Frame, 2...Screw, 3...
・Natsuto, 4... Bathtub side wall, 4a... Inner surface, 5.
... Adhesive, 6... Backing, I... Circulation pipe, 8... Locking member, 9... Stop plate, 10... Screw,
11... Cover, 12... Cosmetic screw, 13... External pipe, 14... Adapter, 15... Gap.

Claims (1)

[Scope of utility model registration request] 1. In a hot water circulation bathtub in which a circulation pipe is attached to a frame attached to an inner surface of a side wall of the bathtub, and a cover is provided to cover the frame and the circulation pipe, a hook-shaped locking member is provided below the frame. A hot water circulation bathtub characterized in that the lower part is held down by the locking member, the upper part is screwed to the frame and a stop plate is attached, and a circulation pipe is held between the frame and the stop plate. 2. The hot water circulation bathtub according to claim 1, wherein the stop plate is formed by bending both sides of the stop plate in the longitudinal direction so as to have a U-shaped cross section. 3. Utility model registration claim 1 or 2, characterized in that the cover covering the circulation pipe is attached with a gap between it and the inner surface of the side wall of the bathtub.
Hot water circulation bathtub as described in section.