JPH0520206Y2 - - 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 a sofa and a chair cushion body using water, there is a method disclosed in Utility Model Application Publication No. 53-27907.
There is a chair that is characterized by having a cushion layer made of a water bag interposed in the seat of the chair body.

{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 the following unresolved problems, 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 primary characteristic of water cushions, which is to evenly support the body pressure when seated by the buoyancy of water, is lost.

3. How to control the movement of water when sitting and obtain 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 configuration of the present invention is such that a water bag 3 filled with water is housed inside the sofa body from the back 1 to the seat 2, and the upper end 4 of the water bag 3 is located at the back. The water bag is detachably fixed to one side of the water bag 3 and has a closing part 6 narrowed in the depth direction at a position corresponding to the boundary part 5 between the back part 1 and the seat part 2 of the water bag 3. It's a sofa.

{Function} The upper end 4 of the water bag 3 is detachably fixed to the back 1, and the water bag 3
hangs down along the slope of the back part 1 and is continuously placed on the almost horizontal surface of the seat part 2, and a blocking part 6 is formed at a position corresponding to the boundary part 5 between the back part 1 and the seat part 2. has been done.

Therefore, when the person is not seated, the water in the water bag 3 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 3 Some of the water inside the body moves over the blocking part 6 to the back 1 side, forming a bulge in the lower part of the back 1, which supports the body by pushing the lower back, which acts as a lumbar support. will be done.

The movement of water at this time is suppressed by the blocking part 6, so that it does not move rapidly, and the bulge in the lower part of the back part 1 is formed gently.

{Embodiment} Next, an embodiment of the present invention will be described based on the drawings. As shown in FIG. 8 and an upper cover cushion body 9. A rigid plate 10 is placed on the seat 2 side of the recess 7 of the cushion base 8. A heater panel 11 is installed. this is,
This is to control the temperature of the water inside the water bag 3, making it warmer in the winter and cooler in the summer, making the seat more comfortable.

The entire inside of the recess 7 is covered with a waterproof liner 12, and the water bag 3 is accommodated in the liner 12. The upper end 4 of the water bag 3 is placed above the back 1 of the cushion base 8. It is connected and fixed to a fixing belt 13 with a hook or the like.

Next, as shown in FIG. 2, the cover cushion body 9 has a cylindrical sewn part 14 on the lower surface of the boundary between the seat and the back, into which a tightening rod 15 is inserted. ing.

Both ends of the tightening rod 15 engage with tension bands 16, 16' fixed to the plate 10 placed in the recess 7 on the seat 2 side, and are engaged with tension bands 16, 16' fixed to the plate 10 placed in the recess 7 of the cushion base 8. A groove 17 provided at the boundary 5 between the seat and the back;
17'. Further, the depth of the grooves 17, 17' is made shallower than the depth of the recess 7.

As a result, the water bag 3 is tightened with the tightening rod 15 with a gap equal to the difference in depth between the recess 7 and the groove 17 remaining at the boundary 5 between the seat and the back. will be formed.

The cover cushion body 9 is removably connected and fixed by connecting members 18, 18', . . . provided on the cushion base 8.

The cushion base 8 is made of an elastic foam such as urethane foam, and its surface is covered with fabric, leather, or the like.

In the case of the device of this invention, when you actually sit down, the third
As shown in the figure, the seat 2 inside the water bag 3
The water on the side moves to the back 1 side and holds the blocking part 6 on the water bag 3 by the action of the tightening rod 15 and the tension bands 16, 16'. A parallel bulge can be formed.

FIG. 4 shows another embodiment for forming a closure 6 in the water bag 3, in which the tension band 16 of the previous embodiment is replaced by a
A tightening belt 20 having engaging metal fittings 19, 19' at both ends protrudes slightly from the grooves 17, 17' of the cushion base 8 and tightens the tightening rod 15. Tighten the gap with the tightening belt 20
This can be adjusted by adjusting the degree of tightening of the cushion, and the speed of movement of water within the water bag 3 can also be adjusted to change the feeling of the cushion when sitting.

{Effects of the invention} By implementing the invention, the sofa body, especially the cover cushion body 8 located above the water bag 3, does not need to be made rigid, and the seat can be easily removed from the back 1 in the sofa body. The water bag 3 can be easily accommodated and held in the recess 7 extending over the part 2, and the boundary part 5 between the seat and back of the water bag 3 can be easily accommodated and held.
By forming the blocking part 6 on the seat, the sudden movement of water when sitting is suppressed, and the water that moves towards the back part 1 is prevented.
Hold it along the curve of your lower back in a sitting position, and lower your back 1.
Because the lower part of the seat can have a bulge, it takes advantage of the properties of water, such as uniform support and the fact that water moves when pressure is applied, that it feels very comfortable to sit on, making it suitable for patients with hemorrhoids. To provide a water sofa that is easy to sit on, comfortable and relaxing.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing one embodiment of the device of the present invention, FIG. 2 is an exploded perspective view showing the assembled state of the device shown in FIG. 1, and FIG. 3 is a seated version of the device shown in FIG. FIG. 4 is an overall perspective view showing another embodiment of the present invention. Next, regarding the drawing numbers, 1...back, 2
...Seat, 3...Water bag, 4...Top end, 5...Boundary part, 6...Closing part, 7...Recessed part, 8
...Cushion base, 9...Cover cushion body, 10...Plate body, 11...Heater panel, 1
2...liner, 13...fixing belt, 14...
...Cylindrical sewing part, 15...Tightening rod, 16, 16'
...Tension band, 17,17'...Groove, 18,1
8'... Connecting tool, 19, 19'... Engaging metal fitting, 20
...Tightening belt.

Claims (1)

[Scope of claims for utility model registration] 1. From the back to the seat inside the sofa body,
A water bag containing water is housed, and the upper end of the water bag is removably fixed to the back side, and is narrowed in the depth direction at a position corresponding to the boundary between the back and the seat of the water bag. A water sofa characterized by forming a blockage. 2. The water sofa according to claim 1, wherein the sofa body is composed of a cushion base and a cover cushion, and the cover cushion is detachably connected and fixed to the cushion base. 3. The water sofa according to claim 2, which is a registered utility model, and comprises a cushion base body and a cover cushion body that are tightened at the boundary between the back and the seat.