JPS59125501A - Production of athletic shoes - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a novel method for manufacturing athletic shoes.

As shown in Figure 1, today's athletic shoes are made of cloth made of synthetic fibers such as nylon and polyester, natural fibers, or synthetic leather, while ・Measurement material of vinyl sheet 2 is used for decoration or reinforcement of the lace material. However, since there is no mainstream metal, productivity is poor and costs are high.

The present invention aims to solve all the problems mentioned above,
In other words, a one-component moisture-curing modified urethane adhesive is applied to the back surface of the vinyl sheet measuring material in advance, and after drying for a certain period of time, the coated surface is brought into contact with the material, and a high-frequency wave is applied from the top surface. It can be manufactured instantly by welding and fusing with a welder, thereby improving productivity and contributing to cost reduction.

This includes both one-component moisture-curing modified urethane adhesives, moisture-curing urethane adhesives (adhesive strength is not achieved until cured, i.e., initial adhesive strength is weak), and two-component urethane adhesives. A special adhesive with the characteristics of
In other words, it has an initial adhesive force equal to or higher than that of the two-component curing type, and ultimately strong adhesion can be obtained by dispensing the adhesive on one side.

The main solvent of the liquid-type moisture-curing modified urethane adhesive used in the present invention is toluene and methyl ether ketone, the repellent content is 17-20%, and the viscosity is 25-45p8.

The vinyl sheet side support materials 2α, 2b are cut into various sizes and shapes as shown in FIG. . After applying it to the back side P and drying it for 20 minutes or more at a room temperature of about 20°C, apply it to the entire surface of the coated material 1 of fabric or synthetic leather made of synthetic fibers such as nylon or polyester, or natural fibers. They are brought into contact with each other and pressed from above with a high-frequency welder 3 at an ambient temperature of 20° C. to perform the fusion process. The crimping time at this time is approximately 25 to 30 seconds.

In the present invention, it is sufficient to apply adhesive only to one side of the side support material 20, and no adhesive is applied to the side of the side support material l. In other words, conventional adhesive bonding methods involve applying adhesive to both the bonding side and the bonded side, so it is now possible to apply this method to the manufacturing of athletic shoes. However, it is quite time-consuming, and the surface to which the adhesive is applied is 4
1111 The liquid may protrude outward from the contact position of the material, resulting in an unsightly appearance, and the liquid that oozes out may change color over time, reducing the product value.8 On the other hand, sewing machines The items to be sewn are beautiful ones that do not make them look unsightly, but each side guard material 2
α, 2b. ++se++ Th It is very troublesome because it requires sewing with a sewing machine, which increases the number of man-hours and costs.
It is the cause. Note that machine-sewn items may initially be beautiful, but if you wear them for a few days, the outer periphery of the perforations will roll up, and the core will become dirty and unsightly. It becomes something.

In contrast to the above, in the present invention, the side support members 2α, 2b.

, all you need to do is apply the special adhesive on the 6 degrees in advance, and all that is left to do is use the high frequency welder 3 to instantly fuse the special adhesive on the coated surface to the welding material 1. There is no adhesive oozing out at all, and all surfaces including the periphery fk of the side material are in close contact with the material 1.
Compared to machine-stitched items, the perforations do not cause the outer periphery f to roll up during fitting, and dirt does not stick to the core, so it stays neat and clean for a long time. It is possible.

In addition, during the fusion process using the high frequency welder of the present invention, perforations, leather patterns, etc. are engraved on the lower surface S of the pressing jig of the high frequency welder. . Perforations similar to those sewn by a machine can be easily formed on the peripheral edge f and inner surface g of the leather, and an artificial pattern can be easily formed to make it look like a leather product.

Athletic shoes manufactured by the present invention are suitable for students and sports.
It can also be applied to sneakers, leisure shoes, etc., and these (5) are included within the scope of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a front view of a conventional athletic shoe, FIG. 2 is an explanatory diagram showing a cane configuration for attaching a side member to a collar, and FIG. 3 is a front view of a sports shoe according to the present invention. 1. , bamboo material 2゜. . Side support material 30. . High frequency welder patent applicant Fukuyama Gomeiko Kogyo Co., Ltd. (6)

Claims (1)

[Claims] (1) Fabrics such as synthetic fibers such as nylon and polyester, natural fibers, or synthetic leather are used as the rope material, and vinyl film is cut into appropriate dimensions and shapes as measuring materials to be attached to appropriate locations on the rope material. After applying a one-component moisture-curing modified urethane adhesive to the back side and drying it, the coated side is brought into contact with the welding material and manufactured by fusing layer processing using a high-frequency welder from above. A manufacturing method for athletic shoes.