JPS6137299Y2 - - Google Patents

Description

[Detailed description of the invention] In order to make it easier to sew a stretchable instep rubber tape to the upper of shoes, etc., the present invention uses a synthetic fiber tape 2 that has almost no elasticity on either the front or back of the upper rubber tape in the longitudinal direction. This relates to a stretchable instep rubber tape that can be fixed while preventing expansion and contraction by bonding the instep rubber tape 1 and the synthetic fiber tape 2 to the inside of the cut ends 3 and 3 using an ultrasonic welder only in the bonding areas 4 and 4. be.

Conventionally, when sewing a stretchable instep rubber tape to the upper of shoes, etc., in order to prevent the instep rubber tape from stretching during the sewing process, the instep rubber tape has the length necessary for the upper, and
Layer this tape with a non-stretchable tape of the same length and temporarily sew together, make both tapes into one piece, and sew and fix it to both sides of the upper where the instep rubber tape is to be applied. The sewing process involved cutting off missing tape.

In addition, a tape with almost no elasticity is adhered to the back side of the conventional elastic instep rubber tape, and both tapes are made into one piece, sewn and fixed on both sides of the upper where the instep rubber tape is to be applied, and then glued. The sewing process involved cutting off a piece of tape with almost no elasticity from the surface.

In the former case, both tapes are temporarily sewn together and then sewn into one piece, which has the disadvantage of requiring a lot of processing time.In the latter case, both tapes are joined together with adhesive. Therefore, it is easy to sew, but it is troublesome to separate the tape with almost no elasticity from the adhesive side after sewing, and the appearance is not very good because adhesive marks remain on the back side, and the processing fee is high. It had drawbacks.

The present invention improves the drawbacks of the conventional products as described above, by polymerizing a stretchable instep rubber tape 1 and a synthetic fiber tape 2 with almost no stretchability. The present invention aims to provide a product which can be bonded and integrated to facilitate the cutting of the non-stretchable tape after sewing, and which can be applied with a uniformly stretchable instep rubber tape.

To explain an embodiment of the present invention, as shown in FIG. 1, an instep rubber tape 1 made of a rubber-containing fabric having elasticity only in the longitudinal direction has a width of about 0.5 to 1.5 cm in the longitudinal direction on either the front or back side. A small-width synthetic fiber tape 2 made of polyester, polypropylene, etc. that has almost no elasticity is polymerized, and an ultrasonic welder is used to glue the tape in two places parallel to the cut portion 3 4, 4.
was cut to a certain length, and as shown in Fig. 2, a synthetic fiber tape 2 with almost no elasticity was glued to the inside of the cut parts 3, 3 at both ends using an ultrasonic welder, and only the adhesive portion 4, 4 was bonded. It is an integrated structure.

Furthermore, the synthetic fiber tape 2 referred to in the present invention is also a general term for thermoplastic plastic film and woven fabric.

Next, if we explain how to use this invention, the third
As shown in the figure, an instep rubber tape 6 that has been cut to a required length and has been treated to prevent expansion and contraction on the shoe upper part 5.
are sewn to both sides of the shoe upper part 5 with the adhesive margins 4, 4 of the synthetic fiber tape 2, which has almost no elasticity, on the back side, and then the adhesive margins 4, 4 of the synthetic fiber tape 2, which has almost no elasticity, on the back side. This is done by inserting scissors or the like into the part where the 4 parts are not glued together and cutting them off.

As mentioned above, by polymerizing the synthetic fiber tape 2, which has almost no elasticity, on the instep rubber tape 1 and bonding the two with only the adhesive margin 4, the left and right elasticity of the instep rubber tape 1 attached to the shoe upper is improved. Equalized.

However, if the shoe upper is not sewn in this way, the elastic strength of the upper rubber on the left and right sides of the shoe will be different, making it uncomfortable to wear and causing wrinkles in the upper of the finished shoe. Occurs.

In order to prevent this drawback, the above-mentioned processing is performed.

The instep rubber tape 1 of the present invention is integrated with a synthetic fiber tape 2 which has almost no elasticity by adhering only the adhesive portions 4, 4 slightly inside the cut portions 3, 3 at both ends, so this is attached to the upper part of the shoe. After sewing and completing the sewing process, by cutting off only the adhesive part of the synthetic fiber tape 2, which has almost no elasticity on the back side, the upper rubber tape, which has the same degree of elasticity on the left and right sides, can be easily and accurately attached to the shoe upper. It can be sewn on.

This is easier than the conventional method, in which the instep rubber tape and the almost non-stretchable tape were cut separately, the two were temporarily sewn together, the tape was then sewn onto the upper, and the non-stretchable tape was separated after sewing was completed. Easy to process.

In addition, the instep rubber tape and the non-stretchable tape are glued together with adhesive, and after the sewing process, the process of separating the non-stretchable tape from the adhesive surface is extremely troublesome and time-consuming. has the disadvantage of leaving adhesive marks, whereas in the present invention, only the tape 2 with almost no elasticity is attached only to the adhesive margin 4, 4, and even after the sewing process, the adhesive margin 4, 4 remains. The tape 2, which does not stretch or contract, can be easily separated by using scissors, which saves processing time, improves productivity, and provides a beautiful finish.

Furthermore, the present invention provides an instep rubber tape that has a simple structure, can be easily produced, eliminates various disadvantages in the processing of conventional instep rubber, and can be conveniently and economically used for sewing to prevent expansion and contraction. It is something that can be done.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a plan view of the instep rubber tape of the invention before cutting, Fig. 2 is an enlarged plan view of the instep rubber tape of the invention, and Fig. 3 shows the state of use. It is an explanatory view of a partial notch. 1...Stretchable instep rubber tape, 2...Synthetic fiber tape with almost no elasticity, 3...Cut portion, 4...
Adhesive allowance, 5... Shoe upper leather part, 6... Instep rubber tape treated to prevent expansion and contraction.

Claims (1)

[Scope of utility model registration request] A synthetic fiber tape 2 with almost no stretchability is polymerized on one side of the stretchable instep rubber tape 1 in the longitudinal direction, and only the bonding margin 4, 4 is bonded to the inside of the cut ends 3, 3 using an ultrasonic welder. Instep rubber tape with anti-stretch processing.