JP4516190B2 - Shoe manufacturing method and shoes obtained by the method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a shoe having a flexible upper and a shoe obtained by the method.
[0002]
[Prior art]
A cement method is generally widely used as a shoe manufacturing method. In this method, the insole is temporarily fixed to the bottom of the shoe mold, and the upper (upper) is put on the shoe mold, then suspended by a machine or by hand, and then bonded to the bottom using an adhesive. It is. In this case, the upper is stretched extremely because it is strongly attracted to the shoe mold when suspended, and it is inevitable that the upper is pulled out and then restored to be smaller than the actual size of the shoe mold. Therefore, the obtained shoes cannot effectively cope with changes in the foot shape, and give a feeling of pressure near the heel side and the heel side midfoot point.
[0003]
In order to solve this problem, Japanese Patent No. 2988482 discloses a predetermined portion including a portion corresponding to a heel side and a heel side midfoot point at both end portions of a flexible upper leather to a predetermined portion on both sides of an insole. There has been proposed a shoe characterized in that the length of the predetermined portion of the upper before sewing is larger than the length of the predetermined portion of the corresponding insole. According to the shoe of this structure, since there is a space in the upper part in the vicinity of the user's heel side and the heel side midfoot point, the feeling of pressure is eased and the deformation of the shape is prevented. This shoe sews a predetermined part including both a heel side and a heel side midfoot point corresponding part of both side ends of a flexible upper leather to a predetermined part on both sides of a shorter insole, The upper part and the insole part other than the predetermined part are joined with an adhesive, and then the bottom is attached.
[0004]
[Problems to be solved by the invention]
In the above manufacturing method, both ends of the upper part are sewn to both side parts of the insole, and then the upper part other than the predetermined part and the peripheral part of the insole are joined with an adhesive. In addition, the handling of bulky intermediate products after stitching causes storage and transportation problems. An object of the present invention is to overcome such problems of the prior art.
[0005]
[Means for Solving the Problems]
According to the present invention, at least one of the predetermined lengths including the corresponding portions on the heel side and the heel side midfoot point in the vicinity of both side ends of the flexible upper is formed into a plurality of small portions having the same or different lengths. It is characterized in that it is divided, and both ends of each small part are sewn with a thread to shorten its length, and then the obtained upper is joined to the peripheral part of the insole with an adhesive, and then the bottom is attached. A method for manufacturing a shoe is provided.
[0006]
In the present invention, at least one of the predetermined lengths including the corresponding portions on the heel side and the heel side midfoot point in the vicinity of both side ends of the flexible upper is made into a plurality of small portions having the same or different lengths. The shoe is characterized in that it is divided and both ends of each small portion are sewed with a thread to shorten its length, and then the obtained upper is joined to the peripheral portion of the insole.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Dividing at least one of the predetermined lengths including the corresponding portions on the heel side and the heel side midfoot point in the vicinity of both side ends of the upper with flexibility into a plurality of small portions of the same or different length, and each small portion After tightening both ends with thread and shortening the length, the obtained upper is joined to the periphery of the insole with adhesive, and then the outsole is attached, so there is no feeling of pressure on the foot Shoes that do not lose shape can be manufactured without increasing the manufacturing cost, and problems in storage and transportation are avoided in the handling of intermediate products.
[0008]
Further, the predetermined length including the portion corresponding to the heel side and the heel side midfoot point in the vicinity of both side ends of the flexible upper is divided into a plurality of small portions of the same or different lengths, and By shortening the length by sewing both ends with a thread, the obtained shoe has the expandability of the upper so that the feeling of pressure on the foot can be eliminated. Furthermore, since the most deformable portion of the shoe (at least one of the portions corresponding to the heel side and the heel side midfoot point) can reasonably correspond to the shape of the foot, it does not lose its shape through long-term use.
[0009]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 3 show an embodiment in which the present invention is applied to portable women's shoes. FIG. 1 is a perspective view in which a part of a finished product is cut out, and FIG. 2 is a perforated upper leather. FIG. 3 is a top view of the upper leather that has been sewn. In the figure, reference numeral 1 is an upper, 2 is an insole, and 3 is a bottom. In this embodiment, as shown in FIG. 2, predetermined length portions 11 and 12 including portions corresponding to the heel side and heel side middle foot points (P, Q) in the vicinity of both side ends of the upper 1 having flexibility. , A plurality of small portions 11a, 11b, 11c. . . And 12a, 12b, 12c. . . And subsections 11a, 11b, 11c. . . And 12a, 12b, 12c. . . The portions 13 and 14 are shortened by sewing both ends with a thread. Accordingly, there is a clearance associated with the pleats in the vicinity of the heel side midfoot point (the notch in the figure) of the upper 1 of the shoe of FIG. 1, and this part can correspond to the shape of the user's foot. , Shoes don't lose shape.
[0010]
The upper 1 is made of a known flexible material such as natural leather or synthetic leather. The insole 2 is also formed of a sheet of a known material such as natural leather or synthetic leather. The bottom 3 is made of a known material such as synthetic leather such as urethane in addition to natural leather. In the present specification, the term “insole” means that provided on the upper surface of the outsole of the shoe, and is also called an insole. In this case, the “sole” is a term including an insole (also referred to as a sock lining), and also includes an insole bonded with a cushion material or an insole. For example, a three-layer structure in which a flexible sheet (for example, leather), sponge, and texon are laminated in this order may be used. Product brand names can be printed and affixed to the insole. The present invention is not limited to portable shoes but can be applied to any shoes having a flexible upper, and various boots, sandals, high heels, low heels, pumps, formal shoes, sports, commuting to school, leisure, etc. Applies to men's and women's leather shoes.
[0011]
Next, a shoe manufacturing method according to the present invention will be described. First, an upper 1 as shown in FIG. 2 is formed, and predetermined length portions 11 and 12 including portions corresponding to the heel side and heel side middle foot points (P, Q) in the vicinity of both side ends of the upper 1. Are perforated and a plurality of small portions 11a, 11b, 11c. . . And 12a, 12b, 12c. . . Divide into In this case, the length of each small portion (the interval between adjacent holes 21 and 22) may be the same or different. In order to give a relatively large space to the midfoot point corresponding parts P and Q, the length of the small parts in the vicinity thereof can be made larger than the small parts on both sides thereof. The length of each small portion is suitably about 3-7 mm. If the length is too large, the wrinkles stand out and the aesthetic appearance is impaired. If the length is too small, the desired clearance does not occur. In addition, the lengths of the predetermined portions 11 and 12 on both sides are appropriately determined depending on the size or type of the shoe. Usually, the portion from the middle foot point corresponding portions P and Q to the toe is 1 to 5 cm and the middle foot point is directed to the heel. The portion is about 1 to 5 cm, and the total length is about 3 to 10 cm.
[0012]
Next, as shown in FIG. 3, each of the small portions 11a, 11b, 11c. . . And 12a, 12b, 12c. . . The ends 13 are sewed with a thread to form portions 13 and 14 having a reduced length. The length reduction degree, that is, the difference between the lengths of the predetermined portions 11 and 12 on both sides and the shortened portions 13 and 14 is appropriately determined according to the size and type of the shoes, but is preferably 1 to 4 cm. When the difference in length is smaller than 1 cm, the effect of the present invention cannot be sufficiently exerted when the size of the shoe is large. On the other hand, when the shoe size is smaller than 4 cm, the upper is wrinkled and the aesthetic appearance is impaired. The above-described sewing is preferably performed by hand sewing so that the wrinkles are not conspicuous one by one in order, but of course, it can also be performed using a sewing machine. In the above example, the sewing is performed after the small holes 21 and 22 are formed, but the sewing may be performed directly without drilling.
[0013]
The upper 1 thus obtained is then joined to the insole 2 according to a conventional method. Preferably, the insole 2 is temporarily fixed to the bottom of the shoe mold, the upper 1 is put on the shoe mold, and then suspended by a machine or by hand, the periphery of the upper 1 is folded back, and then an adhesive is used on the bottom. A cement system is used for pressure bonding. The bottom bottom can be attached by a known method such as hand-sewn, McKay type, Goodyear welt type, or injection type. If necessary, a moon, insole, wick, sponge, texon, etc. can be inserted and pasted as appropriate.
[0014]
Joining to the insole 2 of the upper 1 may be carried out so that the portions 13 and 14 shortened by sewing and reach the back side of the insole 2, as shown in FIG. As shown in FIG. 4, it can be performed so as to appear on the surface. In the above-described embodiment, the portions 13 and 14 whose lengths are shortened by sewing are formed on both the predetermined length portions 11 and 12 including the portion corresponding to the heel side and the heel side midfoot point. However, the present invention is not limited to this, and one of the predetermined length portions 11 and 12 including the portion corresponding to the heel side and the heel side midfoot point may be provided with a portion shortened by sewing.
[0015]
【The invention's effect】
Shoes that do not cause pressure on the user's feet and that do not lose shape can be manufactured without increasing manufacturing costs, and storage and transportation problems are avoided when handling intermediate products.
[Brief description of the drawings]
FIG. 1 is a perspective view in which a portion of women's shoes according to one embodiment of the present invention is cut away. FIG. 2 is a schematic top view of an upper material before forming on the shoe. FIG. 3 is an upper material after sewing. [Fig. 4] Perspective view of women's shoes according to another embodiment of the present invention [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Upper 2 Insole 3 Outsole 11, 12 Predetermined length part 11a, 11b, 11c including the part corresponding to the heel side and heel side midfoot point before sewing fastening. . . Divided small portions 12a, 12b, 12c. . . Small portions 13, 14 divided into a predetermined length portion on the heel side Predetermined length portions 21, 22 including a heel side and a heel side midfoot point corresponding portion after sewing tightening P Side midfoot point corresponding part

Claims (2)

Dividing at least one of the predetermined lengths including the corresponding portions on the heel side and the heel side midfoot point in the vicinity of both side ends of the upper with flexibility into a plurality of small portions of the same or different length, and each small portion A shoe manufacturing method comprising: sewing both ends of a shoe with a thread to shorten the length thereof, joining the obtained upper to a peripheral portion of an insole, and then attaching an outsole. Dividing at least one of the predetermined lengths including the corresponding portions on the heel side and the heel side midfoot point in the vicinity of both side ends of the upper with flexibility into a plurality of small portions of the same or different length, and each small portion A shoe characterized in that both ends of the shoe are sewed with a thread to shorten its length, and then the obtained upper is joined to the peripheral portion of the insole.

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