JPH021201A - Method for producing sports shoe - Google Patents

Abstract

PURPOSE:To dispense with highly advanced technology and much time to improve productivity by attaching an insole to the sole surface side of a last, attachably pulling in ward the lower edge of a peripheral shell on the sole surface side of the insole, bonding the upper surface side of the sole of shoe to the insole with adhesives for press molding, withdrawing the last and then removing a doubling plate for the insole body. CONSTITUTION:An insole (b) is attached to the sole surface side of a last (e). The last (e) is covered and fitted with a shell (a) the lower edge 4 of which is pulled onto the peripheral edge of the sole face side of insole body 1 of said sole (b) and combined therewith. Further desired adhesives are applied to the sole face side on the pulled-in side of the lower edge 4 of the shell (a), a portion of the sole face side of said insole body 1, the upper surface side of a shoe sole (d), etc., to press combine them. After the shell (a) and the sole (d) are integrally coupled with each other, the last (e) is removed from the interior of the shell (a) and an insole body doubling plate 2 for the upper surface side of the insole (b) in the shell (a) is stripped of the insole body 1 to produce sports shoes suited for running.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention mainly relates to a method for manufacturing athletic shoes suitable for running, and in particular improves the productivity of athletic shoes for running, which most require lightness. The aim is to improve the

<Prior art> Insole according to the conventional manufacturing method of athletic shoes, after being in contact with the bottom side of the shoe last, the lower edge of the shoe is suspended and the insole moves during the hanging. Try-XR uses a relatively hard or thick layer so that it does not bend or deform and hinder hanging.

In addition, instead of the insole used in the above method for manufacturing athletic shoes, a relatively hard or thick insole made of a material that can be peeled off leaving a thin wall thickness is used, and the insole is made of a material that can be peeled off leaving a thin wall thickness. After it hits the bottom side of the mold, the shoe cover is suspended, and the hanging part of the lower edge of the shoe cover and a part of the bottom side of the insole are adhesively bonded to the sole of the shoe. After that, remove the last from inside the shoe and carefully attach the insole to the hanging part of the lower edge of the shoe. <Problem to be solved by the invention> According to the above-mentioned former method of manufacturing athletic shoes, since the insole used is relatively hard or has a thick layer, the problem is that the insole is peeled off. When the lower edge of the shoe is hung around the bottom of the insole, it is difficult to deform or move, so there is no risk of hindering the hanging. Not only are these shoes undesirable, but they also have poor cushioning properties and low volume, making them undesirable as athletic shoes for running, especially marathons.

Similarly, according to the latter method of manufacturing athletic shoes, when the insole used is suspended and abuts the lower edge of the insole on the bottom side of the insole, as in the case of the former method of manufacturing athletic shoes, Not only is there no risk of interfering with hanging contact, but the athletic shoes are molded so that only a thin layer is left and the other parts are peeled off, so even when worn, the shoe wearer's feet remain lightweight without compromising their lightness. Although the contact with the back is good, it must be carefully peeled off to leave only the thin layer and peel off the other layers, which requires relatively advanced technology and time, and reduces production. There were some defects such as

Means for Solving Problems〉 The method for manufacturing athletic shoes of the present invention provides an insole that abuts against the bottom side of the shoe last (e) and suspends the lower edge (4) of the shoelace (d). (b)
An insole body (1) that is extremely flexible and thin, and an insole body that is thicker and more rigid than the insole body (1) and is relatively difficult to stretch, but does not lose flexibility. Peel strength (IK51/'L,,f,!) with backing plate (2).
Using a releasably bonded adhesive material (3) of grade b), attach the hanging part of the lower edge (4) of the cover (,) and the inner sole body (1) of the inner sole (b). The sole of the shoe is crimped and bonded to a part of the bottom side using a desired adhesive, and then the shoe cover (a) is attached.
The last (e) is removed from inside, and then the insole main body contact plate (2) is removed from above the insole main body (1) of the insole (b).

According to the method for producing athletic shoes of the present invention) ζ, the insole (b) used therein has an extremely flexible and thin insole body (1) and a thicker and more rigid insole body (1) than the insole body (1). The inner sole body is made of a K-shaped plate (2) that is relatively difficult to stretch but does not lose flexibility, so that the last (e) and the bottom side (t) of the inner sole (b) When the inner sole body (1) of the inner sole (b) is hung around the bottom side of the inner sole body (1) by pulling the lower edge (4) of the cover (a), it will be restored to its original position. The inner sole body (1) of the inner sole (b) can be prevented from moving or deforming by the tensile force caused by the inner sole body (2) which is νζ-bonded.

Next, the lower edges (4) of the peripheral limbs (a) on the bottom side of the midsole main body (1) of the midsole (b) are suspended and abutted, and then the lower edges ( 4) Hanging part side and midsole (b
A part of the bottom side of the insole body (1) and the top side of the sole (,) are glued together with a desired adhesive and pressure molded, and then the last (e) is inserted from inside the shoelace (a). The inner sole body contact plate (2) is very easily peeled off and removed from the inner sole body (1) of the inner sole (b5). In this case, the inner sole body contact plate (2) has a peel strength of I K9 / Since the insole is simply bonded to the insole main body (1) with an adhesive substance (3) having a peel strength of about 25 w@ or less, the insole according to the latter method of manufacturing athletic shoes of the prior art Unlike the case where a relatively thin layer corresponding to the main body of the insole is left and the other layers are peeled off, it does not require skill or time and does not spoil the appearance. Kotona (, can be removed.

<Example> The method for manufacturing athletic shoes of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, the manufacturing method of the present invention involves sewing or welding the laces (a) into desired lace shapes in advance by conventional means, and forming the laces (a) into desired bottom shapes. Insole (b)
The insole (c) is cut or molded into the desired sole shape, and the sole (d) is similarly molded or cut into the desired sole shape. , Figure 1 r
As shown in qmn, the insole body is extremely flexible and thin (
1) and the insole main body backing plate (2), which is thicker and more rigid than the insole main body (1) and does not lose flexibility, with a peel strength of IK9 /25 J4 or less. It is releasably bonded with a strong adhesive substance (8). The insole main body (1) may be made of any known insole material as long as it can be formed to a thickness of about 0.3-0.5 ts and is flexible, but it may be made of any material that is sweat-resistant, such as natural leather. Items that are susceptible to deterioration due to penetration, such as bubble boards
Instead of using materials that are weak against tearing force, for example, non-woven fabrics made of compressed synthetic fibers or valve water.
;$S'1 Th1-r-Also, the inner sole body plate (2) is
1.0-2. Any known insole material may be used as long as it is cut to a thickness of approximately 100 ml, is rigid, has relatively low extensibility, and does not lose flexibility, but for example, natural insole materials may be used. Alternatively, a board made of compressed synthetic fibers is preferable. Furthermore, the adhesive substance (8)
The adhesive may be any adhesive as long as it has a peel strength of about IK$l/25cm width or less, but urethane-based, acrylic-based, or rubber-based adhesives are preferred, for example.

Next, as shown in FIG. 2, the above-mentioned cover (a) is constructed or welded to each component made of a type of ordinary cover material such as natural or synthetic leather, woven fabric or knitted fabric of natural or synthetic fibers, etc. Alternatively, each component is composed of two or more types. Further, the insole (C) may be any known insole material as long as it provides good contact with the sole of the shoe wearer's foot and is lightweight. Furthermore, the sole (C) may be made of a single material component or may include a midsole (6) and an outsole (6).
7) may be used, but for example, a polyurethane rubber foam which is lightweight and has good abrasion resistance and impact resistance is preferable.

Next, the method for manufacturing athletic shoes of the present invention is shown in Figure 4 r 7!・8- As shown in the right, first make the shoe last (e) so that the upper surface of the inner sole main body contact plate (2) of the inner sole (b) is in contact with the bottom surface of the shoe last (e).
), the inner sole (b) is brought into contact with the bottom side of the shoe last (e).
) is covered and fitted with the sleeve (a), and the lower edge of the sleeve (a) (
4) hanging around the bottom side of the midsole main body (1) of the midsole (b) and the bottom side of the intersole and the midsole main body (1) of the midsole (b).
A desired adhesive is applied to a part of the bottom side of the sole (d) and the top side of the sole (d), and then these are pressed together using a known pressure means. In this way, after the laces (,) and the sole (a) are integrally connected, the laces (,) of the laces (a) are integrated.
Remove the last (e) from inside the shoe last (e), and then peel off the midsole main body contact plate (2) on the top side of the midsole (b), which is also inside the shoe cover (,), from the top of the midsole main body (1). Then, by placing the insole (C) on the insole main body (1) of the shoe cover (a) or by not hiding the insole (C), a desired athletic shoe suitable mainly for running is manufactured. can do.

Then, the insole main body contact plate (2) that has been peeled off from above the insole main body (1) in the above-mentioned cover (,) is joined to the insole main body (υ) prepared separately using the adhesive substance (8) in the same manner. Not only can it be used, but it is also economical because it can be used as long as the original properties of rigidity and lack of extensibility but without loss of flexibility remain.

[Brief explanation of the drawing]

Figure 1 I5<<m11. is a schematic diagram showing the midsole which is the main part of the manufacturing method of the present invention, where ■ is a cross-sectional view of the midsole, and ■ is a cross-sectional view showing the state where the midsole main body and the midsole main body contact plate are peeled off. It is. FIG. 2 is a schematic cross-sectional view of the cover used in the manufacturing method of the present invention. FIGS. 3I and 3 are schematic cross-sectional views of an insole and a sole according to the manufacturing method of the present invention, respectively. FIGS. 4I to 4 are illustrations of schematic diagrams related to the manufacturing method of the present invention;
(2) is a cross-sectional view showing the connection between the shoe cover and the sole, and (2) is a cross-sectional view showing the insole main body contact plate in a lateral state after being removed from the inside of the shoe sole. <Drawing code> (a)...
・・・・・・・・・Insole, (c)・・・・・・Insole, (d)・・・・・・Sole, (e)
・・・・・・・・・Shoe last, (1)・・・・・・Insole body, (2)・・・・・・Insole body contact plate, (3)・・・・
・・・・・・Adhesive substance, (4) ・・・・・・Lower edge, Fig. 2 Me 4 ward:] Only 35″ and ne city correct t 3 = [Niji Ij entry 2] Contents of amendment August 1999 6'%l''J The following amendments will be made to the "Brief explanation of drawings" column of the specification. (lh'u 11625, Toyahan No. 184200 Name of the invention 80400 of the present invention.'' has been amended to ``Figure 1 D to J of the present invention.'' ■I will carefully correct Figure 1 of the 0 drawing. [Supplementary drawing number Figure 1■] Also, Table 1 is also ii (ζLylL mound 4, date of amendment 117I order IW Yu 1163 December 07 Date of shipment: 1986 + 2J12O Days: 5. There are no changes to the content other than the corrected drawings of the 1st and 8th section of hli.

Claims (1)

[Claims] 1. A jacket that is sewn or welded into a desired shape in advance (
a), an insole (b), an insole (c), a sole (d), and a last (e), which are also cut or molded into the desired sole shape, and the insole (b) is relatively thin. and a flexible insole main body (1), and an insole main body contact plate (2) that is thicker, more rigid, and has relatively less extensibility than the insole main body (1), but does not lose flexibility. ) and peel strength 1Kg/25
The inner sole body contact plate (
2) to the bottom (5) of the last (e), and then the lower edge (4) of the shoe cover (a) to the midsole main body (b) of the midsole (b).
1) and apply a desired adhesive to the periphery of the bottom surface of the
) is attached to the lower edge (4) of the insole (b), a part of the insole main body (1), and the upper surface of the sole (e), and pressurized with a desired pressure for a desired time to separate the cover (a) and the shoe. The sole (e) is joined together, the last (e) is removed from within the shoe cover (d), and the midsole (b) is removed from the shoe cover (a).
A method for manufacturing athletic shoes, characterized in that the inner sole body contact plate (2) is peeled off and removed.