JPH0520208Y2 - - Google Patents

Description

[Detailed Description of the Invention] {Industrial Field of Application} The invention relates to improvements in sofas and chairs that use liquid (mainly water) as a cushion.

{Prior Art} As for sofas and chairs in which water is used in the cushion body, a cushion layer formed of a water bag is interposed in the seat of the chair body, as disclosed in Utility Model Application Publication No. 53-27907. Atsuta's signature chair is Atsuta.

{Problem to be solved by the invention} However, the above-mentioned chair merely has a water bag body interposed within the chair body.

Therefore, in actual use, there are unresolved problems as described below, and it has not been possible to provide comfortable cushioning that takes advantage of the characteristics of water when seated.

1. Water is an amorphous fluid, and how to retain water in the chair body from the seat to the back against gravity, especially in the back.

2. If water is to be retained in the back of the chair, the exterior covering the water bag inside the chair must have some degree of rigidity.

In that case, the most important characteristic of water's cushioning properties, which is that the body pressure when seated is evenly supported by the buoyancy of water, is lost.

3. How to control the movement of water when sitting down and provide comfortable cushioning.

The invention of this invention solves the above problems,
It was devised to provide a sofa that provides a comfortable sitting feeling by taking advantage of the properties of water and using water as a cushion body in the sofa.

{Means for solving the problem} That is, the structure of the present invention includes a back portion 1, a seat portion 2, a soft arc cushion base 4 having left and right elbows 3, 3', and the soft arc cushion base 4. , which has a back cover cushion body 5 sewn to the upper end of the back part 1 and a seat cushion body 6 placed on the seat part 2 of the soft cushion base 4. However, an elastic cushion layer 9 is disposed inside a bag-like cover body 8 having an opening 7 on one side.
and a water bag 10, and an opening 7
More protruding end 11 of water bag 10
is removably fixed to the back part 1 of the soft cushion base 4, and a plug is provided between the boundary part 12 between the back part 1 and the seat part 2 and the intermediate part 13 of the back part 1 to sandwich the water bag 10 in the depth direction. Part 14, 14'
This is a water sofa formed by

{Function} The end portion 11 of the water bag 10 is detachably fixed to the back portion 1.
0 hangs down along the slope of the back 1, and the seat 2
The seat cushion body 6 is placed on a substantially horizontal surface.
It is inserted and housed through the opening 7 of the bag-like cover body 8, and plugging parts 14, 14' are formed at a position corresponding to the boundary part 12 between the back part 1 and the seat part 2, and at the intermediate part 13 of the back part 1. There is.

Therefore, when the person is not seated, the water in the water bag 10 is mainly located on the seat 2 side due to the action of gravity, but when the person is seated, the weight is mainly applied to the seat 2, and the water bag 10 is 10
The water inside moves to the back 1 side over the blocking parts 14 and 14', forming a bulge at the bottom and middle of the back 1, which supports the body by pushing the lower back, and serves as a lumbar support. will be done.
The movement of water at this time is suppressed by the blocking parts 14 and 14', and does not move suddenly, and the bulge between the lower part and the middle of the back part 1 is formed gently, so there is no possibility that the buttocks will suddenly sink. It will not provide stable support and will act as a shock absorber.

{Embodiment} Next, an embodiment of the present invention will be described based on the drawings. As shown in FIGS. An elastic cushion layer 9 is fixed to the upper side of a bag-like cover body 8 having an opening 7, and a supporting elastic body 15 for supporting a water bag 10 is disposed at the front end of the bag-like cover body 8. A liner 15 and a water bag 10 are inserted and accommodated in the cavity, the liner 15 and the water bag 10 protrude from the opening 7, and the end 11 of the water bag 10 is attached to a fixing belt 17 provided on the upper part of the back 1.
The connection is fixed.

One end of the back cushion cover body 5 is connected and fixed to the upper end portion 18 of the soft cushion base body 2, and a cylindrical pad insertion cloth 19 is provided between the other end and the back side along the width direction of the sofa. , 19' are sewn, and pipes 20, 20' are inserted into the pipe insertion cloths 19, 19'.

On the other hand, at the boundary part 12 between the back part 1 and the seat part 2 of the soft cushion base 4, and at the intermediate part 13 of the back part 1,
Tension belts 21, 21'... for fixing the pipes are attached, and by fixing the pipes 20, 20' to the tension belts 21, 21'... from above the water bag 10, the back and seat of the water bag 10 are fixed. The closing portions 14, 14' are formed at positions corresponding to the boundary portion 12 of and the intermediate portion 13 of the back portion 1.

The soft cushion base 4 is mainly made of an elastic foam such as urethane foam, and inside the back 1 and seat 2 there are vibrators 22, 22' for relaxing the body when seated.
It is buried. The entire surface of the soft cushion base 4 is covered with cloth or leather, and a heater 23 for controlling the water temperature is installed on the seat 2.

As shown in FIG. 3, when the seat is actually seated, the water in the water bag 10 on the seat part 2 side moves to the back part 1 side, and the pipes 20, 20' and the tension belt 21,
Due to the action of 21'..., water bag 10
In order to hold the closure parts 14, 14' in place, a bulge is formed at the lower part and the middle of the back part 1 of the water bag 10.

{Effect of the invention} By implementing the invention, a bag-like cover can be created without having to make the cover cushion of the sofa rigid or without providing a recessed portion for accommodating the water bag 10. The water bag 10 is held inside the body 8, and the left and right elbows 3, 3'
In order to support the expansion of the water bag 10 from side to side, by simply placing the seat cushion body 6 on the seat 2, the irregularly shaped water bag 10 can be stably supported. A closing part 1 is provided at the back boundary part 12 and the middle part 13 of the back part 1.
4 and 14', the bulge on the back part 1 suppresses the sudden movement of water when sitting, and retains the water that has moved toward the back part 1 side along the curve of the lower back in the sitting posture. It can be held at the bottom and in the middle, and takes advantage of the fact that the body is supported by uniform pressure, which is a characteristic of water, and that water moves when pressure is applied. To provide a water sofa which is easy for hemorrhoid patients to sit on, is comfortable, and easy to relax.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view showing one embodiment of the present invention, Fig. 2 is an exploded perspective view showing the assembled state of Fig. 1, and Fig. 3 is a vertical cross-sectional view showing the state when the user sits on the seat of Fig. 1. Next, the numbers in the drawings are as follows: 1 ... back; 2 ... front;
... Seat, 3, 3'... Armrest, 4... Sofa cushion base, 5... Back cover cushion body, 6
... Seat cushion body, 7... Opening, 8... Bag-shaped cover body, 9... Elastic cushion layer, 10...
Water bag, 11... end, 12... boundary, 13... middle, 14, 14'... closed part, 1
5: Support elastic body, 16: Liner, 17, 1
7': fixing belt, 18: upper end, 19:
... Pipe insertion cloth, 20, 20'... Pipe, 21,
21': tension belt; 22, 22': vibrator; 23: heater.

Claims (1)

[Scope of utility model registration request] A soft arc cushion base having a back, a seat, and elbows on the left and right sides, a back cover cushion body sewn to the upper end of the back of the soft arc cushion, and a seat mounted on the seat of the soft arc cushion. The seat cushion body has an elastic cushion layer and a water bag inside a bag-like cover body having an opening on one side, and a water bag protruding from the opening. The end of the bag is removably fixed to the back of the soft cushion base, and a plug is formed at the boundary between the back and the seat and at the middle of the back to narrow the water bag in the depth direction. Water sofa.