JPS6214289B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spring pine tress and a method of manufacturing the same. Conventionally, this type of pine tress is made by laminating soundproof cloth, wire insulators, and fillers as appropriate on the upper and lower surfaces of a spring array group consisting of a large number of springs connected by helical wires and frame lines, and then first laying a top surface covering. The flange sewn to the end is connected to the spring at an appropriate location by wrapping the circumferential edge of the upper filling material around the upper ring of the spring located on the outer periphery, and then turning these parts in half to fill the lower part. A lower surface cover is laid on the material, the flanges provided on the lower surface cover are similarly connected to springs at appropriate locations, and a shape-retaining member having an appropriate cross-sectional shape is provided around the side periphery of the spring array group; Next, the side surface coverings are applied and the upper and lower ends are sewn integrally with the upper surface covering and the lower surface covering ends via edge removal members, but fixing the upper and lower surface coverings with flanges is troublesome. Not only that, but the upper and lower surface coverings must be sewn separately at the upper and lower ends of the side surface coverings via hem removal members, which makes the manufacturing process complicated, and the work is difficult and requires skill. It was hot.

The present invention was developed in view of the above-mentioned defects, and a spring array group in which a filler or the like is appropriately placed is arranged on a lower surface cover and a side surface cover that are connected to each other, and after the lower surface cover is fixed with a flange. Without turning them in half, a box-shaped crowning member made of an elastic material with a shape-retaining part bulged on the inner surface of the side wall so as to form a recess between it and the inner surface of the bottom wall was placed around the upper filling material. The end is wound around the upper part of the spring located on the outer periphery and fitted into the recess so as to be elastically clamped, and then the end of the top surface is sewn to the upper end of the side surface through the edge removing member. , it is extremely efficient as it reduces the flange fixing work and edge removal work by half compared to conventional methods, eliminates the need to turn the spring pinerest in half during the manufacturing process, and eliminates the troublesome work of installing a shape-retaining member around it. The purpose of the present invention is to propose a method for manufacturing a spring pine tress, and to provide a spring pine tress that does not lose its shape and is comfortable to use without swaying.

Next, the present invention will be explained according to the illustrated embodiment. FIG. 1 is an enlarged sectional view of the main part of the spring pinerest according to the present invention. 1 is a large number of springs 2
are arranged in a flat plate shape, these springs 2 are connected to each other by helical wires 3, and the springs 2 located on the outer periphery are connected by a frame line 4. A soundproof cloth 5, a wire insulator 6, and a filler 7 are appropriately laminated on the lower surface. On the upper surface of the upper filling material 7 of the spring array group 1, there is a crowning member 9 which is made of an elastic material such as urethane foam and has a box-shaped cross-section, and has a shape-retaining portion 8 integrally molded on the inner surface of the side wall thereof. The end portion of the filler material 7, etc., is secured so as to be wrapped around the uppermost ring portion 2a of the spring 2 in a recess 10 formed between the shape retaining portion 8 and the inner bottom wall of the crown attachment member 9. are doing. On the other hand, the ends of the lower filler 7 and the like are wound around the lowermost ring part 2b of the spring 2 by fixing flanges 11 provided at the ends of the lower surface cover 12 to appropriate locations on the spring 2. The lower surface covering 12 is connected to the side surface covering 13 in advance, and the upper end of the side surface covering 13 is connected to the end of the upper surface covering 14 laid on the upper surface of the crowning member 9 and the edge removing member 15. Integrated sewing. The spring pinerest with the above structure is provided with a crowning member 9 having a box-shaped cross section that is integrally molded from the top surface to the side surface of the spring array group 1, so that it can provide a stable feeling of use. In particular, since the shape-retaining portion 8 integrally bulged on the inner surface of the side wall of the crowning member 9 corrects the spring 2 from the side, there is no risk of horizontal shaking during use.

Next, the manufacturing method of the above-mentioned spring pine tress will be explained according to the manufacturing process diagram shown in FIG. A spring array group 1 is constructed by connecting the springs 2 along a frame line 4 (see figure A), and then a soundproof cloth 5, a wire insulator 6, and a filler are installed on the upper and lower surfaces of the spring array group 1. 7 are laminated as appropriate, and this is made into a lower surface covering 12 and a side surface covering 13.
is installed on top of the above-mentioned lower surface covering 12.
The flange 11 attached to the end of the spring 2 is fastened to an appropriate location of the spring 2 located on the outer periphery while wrapping the end of the filler 7 etc. around the lowermost ring part 2b of the spring 2 (B (see figure).
Next, a crowning member 9 made of an elastic material such as a foamed resin, which has a box-shaped cross section and has a shape retaining portion 8 bulged on the inner surface of its side wall, is attached to the upper surface of the upper filling member 7, etc. of the spring array group 1 having the above structure. The filler 7 is inserted into the recess 10 and the uppermost ring part 2a of the spring 2 is inserted into the recess 10.
After that, the upper surface covering 14 is laid on the crown attachment member 9, and its end is overlapped with the upper end of the side surface covering 13, covered with an edge removing member 15, and sewn ( (See Figure C).

In the manufacturing method described above, the filler 7 and the like are laid on the upper and lower surfaces of the spring arrangement group 1, and then installed on the lower surface covering 12 which is connected to the side surface covering 13, and the lower surface is covered with the flange 11. Since the work of fixing the cover 12 is performed, there is no need for the troublesome process of first fixing the top cover 14 and then turning it in half to fix the bottom cover 12, as in conventional manufacturing methods. Moreover, the filling material 7 and the like placed on the upper surface of the above-mentioned spring array group 1 can be properly clamped in the recess 10 by the simple operation of elastically fitting the crowning member 9. Moreover, since the structure of the surface material covering these is as described above, the top surface material 1 is laid on the top surface of the crowning member 9.
4 and the side cover 13 only need to be sewn together via the hem removal member 15. In other words, the above-mentioned flange 1
In addition to the fixing work in Step 1, the work required for removing the edge can be reduced by half compared to the conventional method, and in the present invention, since the shape retaining portion 8 is formed in a bulging manner on the crowning member 9, the circumferential installation of the shape retaining member can be reduced by half. No work will be required.

As explained above, in the spring pine tress of the present invention, a box-shaped crowning member made of an elastic material is fitted from above through a filler or the like to the spring array group, and a shape-retaining part formed by bulging is formed on the side wall of the spring pine tress. This prevents the spring from swinging horizontally, and since there is no risk of the shape retaining part shifting its position, it not only prevents the shape from losing its shape and improves the durability of the pinerest, but also improves the stability of the feeling of use. It can increase sleep and give you a good night's sleep. Furthermore, according to the manufacturing method of the present invention, the troublesome flange fixing work and edge removal work can be reduced by half, and the difficult work of turning the pine brace body in half in the work of covering the surface material and installing the shape-retaining member around it can be reduced by half. The effects of the present invention are extremely large, such as the ability to omit troublesome operations and efficiently manufacture spring pinerests.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an enlarged sectional view of the main part of a spring pinerest, and FIG. 2 is a diagram of its manufacturing process. 1...Spring array group, 2...Spring,
3... Helical wire, 4... Frame line, 5... Soundproofing cloth, 6... Wire insulator, 7... Filling material, 8... Shape retaining part, 9... Crowning member, 10... Recessed part , 11...Flange, 12...Lower surface cover, 13
...Side surface cover, 14...Top surface cover, 15...Hem removal member.

Claims (1)

[Claims] 1 Filling material is laid on the upper and lower surfaces of the spring array group, and on the upper filling material, a box-shaped recess is formed between the inner surface of the bottom wall and the inner surface of the side wall. A capping member made of an elastic material having a shape-retaining portion bulged is fitted so that the circumferential edge of the upper filling material wraps around the upper part of the spring located on the outer periphery and is elastically clamped into the recessed portion, and these are also attached to the lower surface. A spring pine tress characterized by a side surface covering and a top surface covering connected to the surface covering being sewn together via a hem cutting material. 2. The process of arranging a large number of springs in a flat plate shape and connecting and fixing them to each other using helical wires and frame lines to form a spring array group, and laying a filler material on the upper and lower surfaces of this spring array group. The process of installing the side surface covering and the lower surface covering in a connected manner in advance, and fixing the spring located on the outer periphery with a flange attached near the peripheral edge of the lower surface surface covering, and such a spring row. A box-shaped crowning member made of an elastic material and having a shape-retaining part bulged on the inner surface of the side wall so as to form a recess between it and the inner surface of the bottom wall is placed on the upper filling material of the packing group. The circumferential edge of the material is wrapped around the upper part of the spring located on the outer periphery and is elastically clamped into the recess, and then the circumferential edge of the top surface is sewn to the side surface through the edge trimming material. A method for manufacturing a spring pine tress, comprising the steps of: