JPH0113844B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support material for a cushion body, and particularly to a support material mainly made of cloth.

Conventionally, a seat has a frame 1 as shown in FIG.
A support material 2 is provided at the center of the frame, this support material 2 is connected to the frame 1 by a spring 3, a cushion material such as foamed urethane is placed on the upper side of this support material 2, and the whole is covered with leather. A cushion body, which is covered with a skin material such as, and has excellent cushioning properties, is combined with a seat cushion portion and a seat back portion.

Conventionally, the supporting material 2 is formed as a plate material having elasticity in the vertical direction by making elastic lines s cross each other and welding the cross points as shown in the figure. However, according to the method of welding a plurality of elastic wires s in this way, the work is complicated and mass production cannot be achieved, and the weight of the support material 2 itself becomes large.
It is not possible to reduce the weight of cushion bodies such as seats, and there are also drawbacks such as the possibility of injury to the body due to the tip end of the elastic wire s when the support material 2 is transported or assembled. . Furthermore, since it is not easy to mold the support material 2 after assembly, it is difficult to set the outer surface of the cushion material itself into an uneven shape that provides the most comfortable condition for the body. .

The object of the present invention is to impregnate almost the entire area of a fiber braided sheet material with a linear pattern of inelastic resin that extends at least in the longitudinal and lateral directions so as to cross each other. The above-mentioned drawbacks are eliminated by forming the linear pattern protruding from the surface of the sheet material and making the cross-sectional area of the outermost linear pattern larger than the others, and will be explained in detail below using examples. do.

2 to 5 are simplified structural diagrams showing one embodiment of a cushion body according to the present invention, particularly a support member for a seat cushion body. In the figures, 4 is a frame made of, for example, synthetic resin or metal. This frame 4 is formed mainly from pipes, etc.
A flat support member 6 is fixed to the inside of the member via a spring 5. As shown in FIG. 5, this supporting material 6 includes a woven fabric 7 whose area is set to have an outer diameter smaller than that of the frame 4, and an inelastic material impregnated into a part of this woven fabric 7. As shown in FIG. 2, the resin 8 is applied in a lattice pattern, that is, a linear pattern extending so as to cross each other in the vertical and horizontal directions; As shown in the figure, it is applied in a lattice pattern formed to include diagonal linear patterns so that the part 9 that comes into contact with the buttocks or back of the body is dense. , the resin 8 is partially impregnated inside the woven fabric 7 and partially protrudes from the surface thereof, and the shape of this protruding portion is round as shown in FIG. 7a. It may be a trapezoidal shape as shown in the figure, a triangular shape as shown in the figure c, a rectangular shape as shown in the figure d, or various shapes as shown in the figure e, f, g, or the figure h, As shown in i, a depression 10 may be provided on the surface side.

However, the outermost pattern, that is, the pattern located at the periphery of the support material 6, has a larger amount of resin than the other patterns, thereby making the cross-sectional area of the protruding part larger than the other parts, thereby increasing the strength. As shown, one end of the spring 5 is fixed to the frame 4, and the other end of the spring 5 is fixed to the protrusion, so that the spring 5 can be easily attached to the frame 4.

According to a support material for a cushion body having such a structure, if a cushioning material such as foamed urethane is placed on the support material and this is covered with a skin material such as leather to form a cushion body such as a seat or bed, the support material can be used to support the body. In addition to being able to sufficiently withstand the load of Therefore, the weight of the cushion body itself can be reduced, and since it is made of resin 8, it can be easily molded using a hot press mold, etc. For example, as shown in FIG. When used as a seat part, the molded product is molded so that its front side position A is deformed upwards from its rear side position B, and such a molded product is attached to a frame using a spring. By placing a cushioning material such as urethane foam on top of the cushioning material and covering the entire surface area with a skin material, a seat can be created that provides the most comfortable feeling to the body. It is possible to obtain an uneven surface shape.

A method for manufacturing the supporting material for the cushion body will be described below. FIGS. 9 and 10 are simplified configuration diagrams showing an embodiment of the method for manufacturing a support material for a cushion body according to the present invention. 22, which is held by a frame 23 or the like, and on the opposite side of this stand 21 is a frame 25 which rotatably holds a cloth material 24 such as a rolled woven fabric. The cloth material 24 is intermittently transferred toward the table 21 by a feeding device (not shown). A mold 26 is provided on the lower surface of the cloth material 24 to be transferred, and grooves 28 are formed on the surface 27 of the mold 26 along the pattern on which the resin 8 is to be applied, as shown in FIG. An injection mold 29 is provided on the upper side of the mold 26 with the cloth material 24 in between, and the injection mold 29 is hollow on the inside, and the molten resin 35 is accommodated in the hollow. The lower surface side is a flat surface, and the groove 2
The injection mold 29 has a hole 31 at a position opposite to the mold 26, and a protrusion 32 is formed on the outlet side periphery of the hole 31.
When pressure is applied to the resin 35 while being pressed in seven directions, this resin leaks out from the hole 31 and forms the cloth material 2.
A portion of the surface of No. 4 will be impregnated after being deposited.
Since the impregnated resin is regulated by the protruding portion 32, the cloth material 24 is impregnated only within this regulated range, thereby making it possible to impregnate the resin 8 in a predetermined pattern. After impregnation, the grooves 28 are formed into a predetermined pattern. The injection mold 29 is guided up and down by a drive mechanism 30 for moving the mold 29 up and down, and the molten resin is transferred to the mold 29 side through the support part 31 of the drive mechanism 30. It can be sent under constant pressure.

Therefore, according to the above configuration, the forming mold 29 is moved by the drive mechanism 30 to the side of the cloth material 24 that is intermittently fed.
and applying pressure to the resin 35 with this fabric material 34 sandwiched between it and the lower mold 26, the resin 35 leaks out from the holes 31, forming a pattern in which the holes 31 are formed. Accordingly, the resin 35 is impregnated into the cloth material 24 and adhered to it, but when this adhesion work is completed, the mold 29 is raised by the operation of the same mechanism 30, and the cloth material 24 is sent in the direction of the table 21 for a certain distance. do. Next, when the cloth material 24 having the resin 8 is sent onto the table 21, the cutter 22 is operated to cut the cloth material 24. As a result, the cloth material 24 is cut out in a predetermined area, and this cutout can be used as it is as a support material for the cushion body.

In the above manufacturing method, the surface 27 side of the mold 26 and the mold 2 that this surface 27 opposes
As shown in FIG. 8, the resin 35 forms the hole 31 by forming the surface side of the hole 31 in advance so that the supporting material obtained after applying the resin has a certain formed curved surface. When applied to the fabric 24 through the support material, the supporting material can be formed at the same time.
The step of molding the support material can be omitted. Further, according to the manufacturing method of the present invention, the cloth material 24 is intermittently fed in a certain direction, the resin is applied while the cloth material 24 is stopped, and a cutter is used to apply the resin after the resin is applied. Since the adhered portion is cut out, it is possible to continuously obtain the support material for the cushion body. Therefore, compared to the conventional case where elastic wires cut to the required dimensions are welded together, mass productivity can be dramatically improved.

Although the present invention has been described with reference to the case of manufacturing a support material for a seat, the present invention is not limited thereto, and the present invention can be similarly applied to support materials for other cushion bodies such as beds.
Further, the cloth material may not be a woven cloth, but may be one made by braiding synthetic resin fibers.

As explained above, according to the support material for a cushion body according to the present invention, almost the entire area of the fiber braided sheet material is impregnated with a linear pattern of inelastic resin that extends so as to cross each other at least in the vertical and horizontal directions. At the same time, a part of the impregnated inelastic resin was formed to protrude from the surface of the sheet material, so
Compared to the conventional method using elastic wire, it is extremely easy to manufacture, lightweight, and has excellent moldability. In addition, rust will not occur, and workers will not be injured during transportation.

In addition, the cross-sectional area of the outermost linear pattern is made larger than the others to strengthen the strength of this protruding part, so it can be attached to the frame simply by locking a spring or the like to this protruding part. Installation will not be complicated.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a support material for a conventional cushion body, FIGS. 2 to 10 show an example of a support material for a cushion body according to the present invention, FIG. The figure is a partial sectional view, FIG. 4 is a perspective view, FIG. 5 is a partial sectional view, FIG. 6 is a plan view, and FIG.
i is a partial sectional view showing various protrusion patterns of the inelastic resin 8, FIG. 8 is a configuration diagram showing a modified example, and FIGS. 9 and 10 are a sectional view and an overall configuration diagram showing a manufacturing method. 6... Supporting material for the cushion body, 7... Woven fabric, 8
... Inelastic resin, 21 ... Stand, 22 ... Cutter, 26, 29 ... Molding mold, 28 ... Groove, 35 ...
... Molten resin, 31 ... hole, 32 ... protrusion.

Claims (1)

[Claims] 1. Impregnating almost the entire area of the fiber braided sheet material with a linear pattern of inelastic resin extending crosswise at least in the longitudinal and lateral directions, and applying a part of the impregnated inelastic resin to the surface of the sheet material. A support material for a cushion body, characterized in that the linear pattern is formed to protrude more and the cross-sectional area of the outermost linear pattern is larger than that of the other linear patterns.