JPH066760Y2 - Backrest - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a backrest, and more particularly to a backrest such as a sofa, a couch and a chair bed.

[Problems to be Solved by Prior Art and Invention] The conventional backrest is attached to a seat such as a sofa and cannot be separated from the seat. Also, as a backrest, one that can change the angle with respect to the seat is known, and a sofa having such a backrest could be used also as a bed, but the couch, that is, one of the side portions of the seat. It couldn't be used as a large lean back. Furthermore, it was not possible to separate only the backrest from the seat, place it on a carpet or tatami mat, and use it alone as a cushion.

Recently, there is an increasing number of new tea clan called Couch Potatoes. This is a way of life that is increasing among young couples who work together and one person alone, who sits down on a couch-style sofa and enjoys TV dramas while chewing potato chips. In order to live like this, you can relax in various postures by using the sofa as a couch, placing the backrest only in a free place, and changing the shape of the backrest. desired.

However, since the conventional backrest cannot be freely separated from the seat and its shape cannot be freely changed, it has not been possible to meet the above demand.

It is an object of the present invention to solve the above problems and provide a backrest that can be freely separated from a seat and can be changed in shape.

[Means for Solving the Problems] In the backrest according to the present invention, a large number of plate-like elastic bodies are arranged in the thickness direction so that the front and back surfaces thereof are in contact with each other, and the side portions of these elastic bodies are made thinner than the central portion thereof. Formed, through holes are formed in the center of the elastic body in the thickness direction, flexible wire bodies are inserted through these through holes, and wire holding cylinders are fixed to the through holes in the elastic bodies at both ends. The end portions of the wire body are arranged inside the wire body holding cylinder, and are fixed to the wire body holding cylinder inside the wire body holding cylinder.

[Operation] In the backrest according to the present invention, a large number of plate-like elastic bodies are arranged in the thickness direction so that the front and back thereof are in contact with each other, and the elastic bodies at both ends are connected by the wire inserted through the through holes of the elastic body. The elastic body can be freely bent in the thickness direction. In this case, since the side portion of the elastic body is formed thinner than the central portion thereof, the backrest can retain its shape while being bent.

[Embodiment] An embodiment of the backrest 1 according to the present invention will be described below with reference to FIGS. 1 to 7.

In FIG. 1, the backrest 1 is placed above a substantially elliptical seat 3. Reference numeral 10 is a cover of the backrest 1, which is made of a flexible material and is formed in an elongated tubular shape with both ends closed.

Inside the cover 10, a large number of plate-like elastic bodies 12 made of a polyuritan foam are arranged side by side in the thickness direction so that the front and back surfaces of the elastic bodies 12 contact each other. The elastic body 12 has a substantially triangular shape, and both side portions 16, 16 are formed thinner than the central portion 14, and the central portion 14 has a through hole 18 formed in the thickness direction. There is.

Triangular support plates 20, 20 are adhered to both outer end surfaces 13, 13 of the elastic bodies 12 at both ends, and a cylindrical wire holding cylinder 22 is inwardly provided on the inner surfaces of these support plates 20. It is projected.

A vinyl chloride pipe 24 penetrates the inside of the through hole 18 of the elastic body 12, and both ends of the pipe 24 have a wire holding cylinder 22.
Is extended to the inside of and is fixed to the inner peripheral surface of the pipe 24.

A wire 26 is inserted into the pipe 24. In this wire 26, two strip plate-like link plates 28A arranged vertically and one link plate 28A arranged between these link plates 28A have rivets 30 at both ends thereof. They are connected and can be freely bent in the length direction. In this case, rivets
A disc spring 36 is inserted between the link plate 28 and the head portion 32 and the crimped portion 34 of 30 so that the bent wire body 26 can maintain the state.

Further, both ends of the link plates 28 located at both ends extend to the inside of the wire body holding cylinder 22 and are fixed to the peripheral wall thereof via rivets 38, and the elastic bodies 12 at both ends are flexible. They are connected by a wire body 26.

As described above, in the backrest 1 according to the present embodiment,
Since both ends of the elastic body 12 are connected by the flexible wire body 26, the elastic body 12 can be bent in the thickness direction thereof, and the side portion 16 of the elastic body 12 is formed from the central portion 14 thereof. Since the elastic body 12 is also formed to be thin, the bent state of the elastic body 12 can be maintained. Therefore, as shown in FIG. 6, when the backrest 1 is bent in a U shape and placed on the upper surface of the seat 3, the sofa can be used as a couch, and as shown in FIG. When the backrest 1 is bent in an S shape and placed on the upper surface of the seat 3, the sofa can be used from both front and rear sides. Although not shown, the backrest 1 can be separated from the seat 3 and placed on the upper surface of a carpet or tatami mat.

Although the elastic body 12 has a triangular shape in the above-described embodiment, the shape of the elastic body 12 is not limited to these, and it is needless to say that the elastic body 12 may have a rectangular shape or a disk shape. Further, in the above-described embodiment, since both side portions 16 in the width direction of the elastic body 12 are formed thin, the backrest 12 can be bent in an S shape, but as shown in FIG. Only one side in the direction may be thin. Further, as shown in FIG. 9, the side portion 16 around the central portion 14 may be thinned, which makes it possible to bend the elastic body 12 in any direction in its thickness direction. .

There is no particular problem with the material of the elastic body 12, and any material such as synthetic rubber having appropriate elasticity for the backrest 1 may be used, and a hard core material may be covered with an elastic material. Further, the material of the wire 26 is not particularly problematic as long as it has flexibility such as a chain or a wire.

Further, in the above embodiment, the wire 26 is the through hole of the elastic body 12.
In order to prevent the elastic body 12 from being damaged by coming into contact with the peripheral wall of 18, the pie portion 24 is arranged inside the through hole 18, but the pipe 24 may be omitted depending on the material of the elastic body 12 and the wire 26. May be.

Furthermore, when the form of the elastic body 12 is made to be a makeup finish, it is a cover.
10 can be omitted.

[Advantage of the Invention] Since the backrest according to the present invention is not attached to the seat, it can be separated from the seat and placed in a free place, and can be flexed freely in the thickness direction of the elastic body. The shape can be freely changed because it can be kept bent. Therefore, the backrest according to the present invention makes it possible to relax in various postures.

[Brief description of drawings]

1 is a perspective view showing a state of use of a backrest according to an embodiment of the present invention, FIG. 2 is a partially enlarged perspective view of the backrest of FIG. 1 with a part thereof cut away, and FIG. 1 is a cross-sectional view of the elastic body in the backrest of FIG. 1, FIG. 4 is a partial cross-sectional view of the line body, the line-holding cylinder and the pipe in the backrest of FIG. 1, and FIG. , FIG. 6 and FIG. 7 are plan views showing the usage state of the backrest shown in FIG. 1, FIG. 8 is a sectional view of a modification of the elastic body in the backrest of FIG. 1, and FIG. It is a perspective view of the modification of the elastic body in the backrest of FIG. Explanation of reference numerals 1 ... backrest, 12 ... elastic body 14 ... central part, 16 ... side part 18 ... through hole, 26 ... line body

Claims (1)

[Scope of utility model registration request] 1. A large number of plate-like elastic bodies are arranged in the thickness direction so that the front and back surfaces of the elastic bodies are in contact with each other, and the side portions of these elastic bodies are formed thinner than the central portion thereof. Through holes are formed in the through holes, flexible wire bodies are inserted into these through holes, the wire body holding cylinders are fixed to the through holes in the elastic bodies at both ends, and the end portions of the wire bodies are respectively connected to the through holes. A backrest, characterized in that the backrest is arranged inside the wire holding cylinder and is fixed inside the wire holding cylinder.