JPH06109U - Injection molded shoe instep - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Easy to suspend the instep by string string method of injection molded shoes, prevent the finished shoes from deforming, improve quality, improve work efficiency and work Improvement of the person's fatigue. [Structure] The back side of the body of the instep body where the toe reinforcement, heel reinforcement, side decorations, etc. are sewn on the instep cover of the injection-molded shoe string string, and the nonwoven fabric is sewn or pressure-bonded to the formed portion. , Easy to hang on the shoe mold, tighten the instep to the shoe mold, and make sure that it fits well and ensure a close contact.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an instep cover of a string string type in an injection molded shoe.

[0002]

[Prior art]

 Injection molding shoes are roughly classified into two types according to the type of instep: the California (slip lasting) method and the string string (cord lasting) method. The California method is a method in which the instep and the insole are sewn together to form a bag, which is then hung in a shoe mold to assemble each shoe mold and inject thermoplastic resin to produce the outer sole. On the other hand, the string string manufacturing method is adopted as a structure around the bottom of the instep for fitting the sewn instep to the shoe mold and fitting the instep to the shoe mold. To describe this method in a little more detail, the string string method is to form a number of loops by overlocking the lower periphery of the instep with a thread similar to the sewing thread and forming a string string on these loops. Through. Both ends of the string cord are pulled out to the outside. After the instep is fitted to the shoe mold, both ends of the string cord are pulled to tighten the lower edge of the instep to the shoe mold. The instep cover is made to fit into the shoe mold, and the molding of the shoe is facilitated. Further, in the case of a thick and thick instep cover, the back surface of the instep is cut to an appropriate thickness over the entire circumference by the amount of hanging in the shoe mold.

[0003]

[Problems to be solved by the device]

 In the string string method described in the related art and the stepless portion where the shoe mold is dented inward, there is a drawback that the instep is rather pulled away from the shoe mold by tightening the string cord. However, in order to eliminate the drawbacks, a large number of nails are planted on both sides of the foot part of the shoe type, and after the instep is fitted to the shoe type, hook the string string on the nail and then tighten the string string. Alternatively, a method of fitting the instep cover to the stepless part is adopted by sewn a bottom cloth on the lower stepless part of the instep part. However, in this method, the nail becomes an obstacle when the shoe sole is detached after the shoe sole is attached, and this step is necessary because the insole cloth is sewn to the instep before fitting to the shoe former. However, no satisfactory results have been obtained. Therefore, as a solution to these problems, a thread, a metal piece, a synthetic resin piece, or the like may be used between the string cords or the lower edges on both sides of the instep after the instep is fitted into the shoe mold. The method of tightening the instep on the non-accessible part of the shoe pattern by bridging and contacting with the contact piece. These have some effects.

However, in recent years, sports-type shoes centered on young people, particularly shoes that are also used as outerwear such as baskets and tennis have become mainstream. The uppers of these shoes are often made of comparatively thick synthetic leather, and the toe reinforcement, heel reinforcement, and side decoration are sewn together. To fit the instep by fitting the instep to the shoe mold and manually pulling the ends of the string cord to tighten the lower edge of the instep to the shoe mold, the workability is poor and the operator's fingers ， Wrist fatigue is remarkable and requires higher skill. Furthermore, there is a problem in terms of strength in the method of squeezing the back surface of the instep over the entire circumference. The present invention has been made to solve these drawbacks.

[0005]

[Means for Solving the Problems]

 When toe reinforcement (3), heel reinforcement (4), side decoration (5), etc. are sewn to the instep body (2) of an injection-molded shoe, the instep body (2) of the sewn part of these parts is sewn. Put a strainer (6) on the back side of the shoe, and a non-woven fabric (7) is sewn or crimped to the strainer (6) part. It is provided.

[0006]

[Action]

 Reinforcement of the toe of the instep main body, reinforcement of the heel and the hanging allowance at the overlapped part with the side decoration make it easier to adapt to the shoe pattern when the instep is suspended.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. The present invention was applied to the instep (1) of a basket type shoe. As the material for the instep cover (1), toe reinforcement (3), heel reinforcement (4), and side decoration (5), synthetic leather with a thickness of 2 mm is used, and the instep cover body (2) becomes the front instep cover. (9) The back of the part where the toe reinforcement (3), the heel reinforcement (4), and the side decoration (5) are sewn to the back instep (10) is the width for hanging to the shoe last (11), and the approximate width. Put a strainer (6) with a thickness of 25 mm and a thickness of 1.3 mm as shown in Figs. A non-woven fabric (7) having the same thickness as the strained thickness is sewn on the back surface of the strainer (6) by zigzag stitches (15) as shown in FIG. (In the embodiment, the sewing method is adopted, but the back surface of the non-woven fabric (7) may be pasted with glue, and may be attached by heat fusion bonding or the like.) The front instep cover (9) and back instep thus configured The back cloth (12) is sewn to the cover (10) to fabricate the instep body (2), and the toe body (2) further has toe reinforcement (3), heel reinforcement (4), side decoration (5) Sew on and make the shoe instep (1).

The lower peripheral edge (13) of the instep cover (1) is over stitched with # 30 vinylon sewing thread over the entire circumference to form a large number of loops (14), and the string (8 ) Is inserted. Pull out both ends of the string string (8) that has been inserted through both sides of the instep cover (1). In this case, the string string (8) may be inserted only once or may be inserted so as to partially overlap. (See FIG. 4) Further, both ends of the string string (8) at this time may be pulled out from anywhere on both sides of the instep part (1) of the stepped part or both sides of the stepped part. In addition, # 2027 spun nylon thread was used for the string string.

Next, in order to perform bottoming of the instep cover (1), when a shoe type is inserted from the mouth of the instep cover (1) having the above-mentioned bottom structure, the bottom part of the instep cover (1) is opened. The insertion can be done easily. Then, after fitting the instep (1) into the shoe last (11), pulling both ends of the string string (8) inserted through the multiple loops (14), the instep (1) is removed. When the lower peripheral edge (13) is tightened to the shoe last (11), the former instep (9) and the rear instep (10) are thin and flexible, so the instep (1) is kept in the shoe last (11). It is possible to make sure that it fits in and adhere closely. Both ends of the pulled string string (8) are bound at the stepped portion, or the remainder is cut off to complete the suspension in the shoe last (11). After fitting the instep (1) onto the shoe mold (11) in this way, it was bottomed by cooling by injection molding a thermoplastic resin and then cooled and then removed from the shoe mold (11) and the midsole was inserted from the mouth opening. Complete the shoes.

[0010]

【effect】

 When toe reinforcement (3), heel reinforcement (4), side decoration (5), etc. are sewn to the instep body (2) of an injection-molded shoe, the instep body (2) of the sewn part of these parts is sewn. Straining the back side of the string makes it easier to pull the string string, improves workability, significantly improves productivity, does not require a high level of skill for the worker, and significantly reduces fatigue. In addition, the back surface of the instep is partially strained to improve the strength. Further, it is possible to surely and tightly adhere to the mold, and to provide a good-quality shoe with good comfort and avoiding the deformation of the finished product.

[Brief description of drawings]

FIG. 1 (a) is a partial plan view of a front instep cover of the present invention. (B) An enlarged view of arrows A to A in (a).

FIG. 2 (c) A partial plan view of the rear cover of the present invention. (D) The enlarged view of BB of (c).

FIG. 3 (e) A partial plan view in which a non-woven fabric is sewn (staggered) on a portion of the rear instep of the present invention. (F) An enlarged view of arrows C to C in (e). (The back cover is omitted because it is the same as the front cover.)

FIG. 4 is a perspective view of when the upper cover is completely hung in the shoe mold.

[Explanation of symbols]

 1 Upper cover 2 Upper cover 3 Reinforcement of toes 4 Heel reinforcement 5 Side decoration 6 Straining 7 Nonwoven fabric 8 String string 9 Front instep 10 Back instep 11 Shoe type 12 Lining 13 Bottom edge 14 Loop 15 Staggered stitch

Claims (1)

[Scope of utility model registration request] 1. Reinforcement of the toe on the main body (2) of the injection-molded shoe
When sewing (3), heel reinforcement (4), side decoration (5), etc.,
Strain (6) the back of the instep body (2) of the sewn part of these parts.
An instep cover (1) of an injection-molded shoe string string (8) characterized in that a non-woven fabric (7) is sewn or pressure-bonded to the straining (6) part.