JPH0819446A - Pad part of chair - Google Patents

Abstract

PURPOSE:To make it possible to easily constitute pad parts, such as seat part, back part and arm rest parts of a chair. CONSTITUTION:This chair is provided with a frame body 9 enclosing a cushion body 5. A mounting plate 10 is integrally formed on this frame body 9 and a receiving plate 11 is mounted on this mounting plate 10. The cushion body 5 is placed on this receiving plate 11 and is adhered by an adhesive. The peripheral edge 8 of the cushion body 5 is inserted into a receiving groove 13 formed at the side face of the frame body 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding chair or other pad portion such as a seat portion, a back portion or an armrest portion of a chair.

[0002]

2. Description of the Related Art Conventionally, a foam material such as a urethane foam is placed on a core material and a top surface thereof is made of a synthetic resin laser or a cloth to construct a pad portion such as a seat portion of a chair. And the like, and the peripheral edge of the skin material is fixed to the back surface of the core material with a tacker or the like to form a cushion body, which is attached to the seat frame. It is also known that a U-shaped groove is formed around the substrate and a pad portion is formed by inserting the surrounding edge of the cushion material placed on the substrate into the groove.

As described above, the pad portion of the conventional chair is
Since the cushion body itself is configured independently and then attached to a seat frame or the like to form, the production is troublesome,
A special structure for attaching to a seat frame etc. is also required, which is economically difficult.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pad portion of a chair which can be constructed by directly incorporating a cushion main body into a frame main body such as a seat frame.

[0005]

According to the present invention, a mounting plate is integrally extended inside a frame body surrounding a cushion body, a receiving plate is attached to the mounting plate, and the cushion body is mounted on the receiving plate. The pad part of the chair is provided by inserting the peripheral edge of the cushion main body between the receiving plate and the side surface of the frame main body, and the above-mentioned object is achieved.

Further, according to the present invention, the frame main body is recessed in a substantially V shape along the axial direction, the receiving plate is attached to the recessed portion, and the cushion main body is placed on the receiving plate. The pad portion of the chair is provided by inserting the peripheral edge of the cushion body into the recessed portion, and the above-mentioned object is achieved.

[0007]

EXAMPLES Examples will be described below. The present invention can be appropriately applied to the structure of various pad portions such as a seat portion, a back portion, and an armrest portion of a chair, but the seat portion is shown as an example in the drawings. The chair shown in the figure is a folding chair in which a front leg (1), a rear leg (2) and a seat frame (3) are foldably connected to each other, and a seat portion is formed in the seat frame (3). (1)
A back portion is provided on the back frame (4) formed on the upper part of the.

A cushion body (5) is provided on the seat portion and the back portion. The cushion body (5) is
It is composed of a skin material (6) and a foam material (7). In the figure, the skin material (6) is made of polypropylene-clad cloth,
The foam material (7) is made of polyethylene foam or urethane foam.
It may have an appropriate structure, for example, a combination of a skin material and a polyethylene foam, or a polyethylene foam provided between the skin material and a urethane foam to form the foam material into two layers. You can Then, the above-mentioned tension cloth and a slab-shaped urethane foam are put into a stacking mold and heated and pressed to form a predetermined shape by hot pressing and a thin peripheral portion (8) extending outward to the peripheral edge. ) Is formed. At this time, the tension cloth and the slab urethane are bonded with an appropriate adhesive before heating and pressurizing, or a hot-melt adhesive is interposed between the tension cloth and the slab urethane, and the When put in and heated and pressed, it is melted and adhered. The foam material may be shaped into the above shape and then the skin material may be bonded, or the cushion body may be formed by any other suitable method.

When a polypropylene cloth is used as the above-mentioned cloth as shown in the embodiment, the cloth itself is easily formed into a predetermined shape when heated and pressed as compared with acrylic cloth and polyester cloth. Even if the strength of the adhesive is weak, there is no fear that a part of the upholstery cloth will float up without being added to the foam material, and the whole can be closely adhered. In addition, urethane foam and polypropylene cannot generally be expected to have strong adhesive strength, which means that when discarding a chair using the above-mentioned pad portion made as described above, It is also convenient from such a point of view, because the upholstery material of the pad portion and the foam material can be easily separated and separated. Further, considering the convenience of disposal, an olefinic resin such as polyethylene laser is used as the skin material (6), and an olefinic foam material such as polyethylene foam is used as the foam material (7). Using
If both are made of the same material, they can be recycled without separation.

The frame main body (9) forming the seat frame (3) and the back frame (4) has a shape surrounding the cushion main body (5) with a metal pipe material such as an aluminum alloy or a synthetic resin material. Is formed in. At this time, the frame body of the back frame surrounds the cushion body (5) from both sides to the upper side, and the seat frame surrounds the entire circumference of the cushion body (5). Can be formed in an appropriate shape within the limit allowed for strength.

2 to 4 show various embodiments in which the cross-sectional shape of the frame body (9) is changed, and FIGS.
In the embodiment shown in, the mounting plate is provided inside the frame body (9).
(10) is extended integrally. Mounting plate like this (10)
The structure of integrally molding is particularly advantageous when the frame body is made of an aluminum alloy pipe material as shown in the figure. That is, when the frame body is made of an aluminum alloy material, if the mounting plate (10) and the pipe part as shown in the figure are made separately and an attempt is made to weld the mounting plate to the pipe part, the aluminum welding technology Due to a problem, the wall thickness of the pipe wall and the like must be formed thick, and the weight of the frame as a whole becomes heavy. So good
This is because it can be constructed lightly.

On the mounting plate (10) of the frame body (9), a receiving plate (11) is placed and fixed with bolts (12) or the like.
The receiving plate (11) is made of a metal material, a synthetic resin material, a wood material, or the like having sufficient strength, and the cushion body (5) is placed on the upper surface of the receiving plate (11) and is bonded with an appropriate adhesive. The peripheral edge portion (8) of the cushion body (5) is inserted between the receiving plate (11) and the side surface of the frame body (9). On this occasion,
In the embodiment shown in FIG. 2 to receive the peripheral portion (8), a receiving groove (13) is formed inside the frame body along the axial direction, and in the embodiment shown in FIG. 11), the gap (1
4) is formed, and accordingly, the frame body is formed to have an irregular cross section.

The embodiment shown in FIG. 4 shows an example of a frame main body which does not use the mounting plate as described above. That is,
Inside the frame body (9), a recessed portion (15) recessed in a substantially V shape is provided along the axial direction, and the support for mounting the receiving plate (11) by the recessed portion (15). An inwardly sloping covering surface (17) is formed so as to cover the surface (16) and the bearing surface (16). The concave portion (15) is formed by extruding the frame body (9), but it may be formed by pressing a round pipe material. The support plate (11) is attached to the bearing surface (16).
Then, the cushion body (5) is placed on the upper surface of the cushion body (5), and the cushion body (5) is attached to the upper surface by an appropriate adhesive. It is inserted below (17).

[0014]

The present invention is configured as described above and includes a seat portion,
A recessed portion having a mounting plate or a supporting surface is integrally provided on the frame body constituting the back portion, armrest portion, etc., a receiving plate is attached to the mounting plate or the supporting surface, and the cushion body is placed on the upper surface thereof. Since the pad portion is formed by inserting the peripheral portion between the receiving plate and the side surface of the frame main body, the cushion main body can be directly incorporated into the frame main body of the chair, which is easy to manufacture and economical. The frame body can be lightly made of an aluminum alloy, and a well-formed pad portion can be obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view of a part of a pad portion.

FIG. 3 is a partial cross-sectional view showing another embodiment of the pad portion.

FIG. 4 is a partial sectional view showing still another embodiment of the pad portion.

[Explanation of symbols]

1 Front leg 2 Rear leg 3 Seat frame 4 Back frame 5
Cushion body 6 Skin material 7 Foam material 8 Peripheral part 9
Frame body 10 Mounting plate 11 Receiving plate 12
Bolt 13 Receiving groove 14 Gap 15 Recessed part
16 Bearing surface 17 Cover surface

Claims (3)

[Claims] 1. A cushion plate integrally extending inside a frame body surrounding a cushion body, a receiving plate attached to the mounting plate, the cushion body placed on the receiving plate, and the cushion body. The pad portion of the chair is characterized in that the peripheral portion of the chair is inserted between the receiving plate and the side surface of the frame body. 2. The pad portion of the chair according to claim 1, wherein the frame body is formed in a modified cross section so as to receive the peripheral edge portion of the cushion body. 3. A support surface on which a support plate of the cushion body is placed and the support surface are formed by recessing the inside of the frame body surrounding the cushion body in a substantially V shape along the axial direction. A cover characterized by forming an inwardly sloping cover so as to cover it, attaching a receiving plate to the bearing surface, and inserting a peripheral portion of the cushion main body placed on the receiving plate below the covering surface. Pad part.