JPS63240803A - Shoes and production thereof - 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 (a) Field of Industrial Application This invention relates to shoes and shoe manufacturing methods, and more particularly, to the sewn portion of the lower edge of the hem of the sewing thread sewn to the hem of the shoe, and more specifically, The present invention relates to a shoe and a method of manufacturing the shoe, which are characterized by the sewn portion of the sewing thread around the lower side of the shoelace for sewing a shoelace reinforcing piece to the shoelace.

(b) Conventional technical shoes generally consist of a shoe cover, an insole, and an outsole.After the shoe cover is created by sewing a cut-out shoe cover,
The insole is sewn and the outsole is bonded to the outside of the lower periphery of the shoe cover by injection molding or the like. Shoe cover is PVC
It is known that synthetic leather such as leather, or materials such as leather or cloth are used, and they are manufactured by cutting and sewing them into appropriate shapes. It is also known to bond reinforcing pieces made of materials such as synthetic leather, leather, cloth, etc.

When adhering a reinforcing piece to this shoe cover, even if the entire surface of the reinforcing piece is adhered, the peripheral edge of the reinforcing piece is generally made of natural spun yarn or nylon, in order to improve the adhesive strength and improve the appearance of the design. Sewn with synthetic resin thread such as Tetron.

You can also use these threads to make decorative stitches directly on the shoelaces.
It may be sewn for reinforcement. At the time of sewing, since the insole has not yet been provided, the tip of the sewn thread protrudes from the lower periphery of the sleeve and is allowed to hang down. This protruding thread (
8) When installing the outsole, make sure that it does not go beyond the bottom contact surface.
It had been cut short with scissors. The threads were then secured by sewing the insole and attaching an injection molded outsole.

Furthermore, in the case of the sewn part of the shoelace described in Japanese Patent Publication No. 61-58161, the protruding part of the sewing thread was burned with fire to make a baked ball to serve as a thread stopper.

(c) Problem to be solved by this invention The thread sewn to the black shoe cover, especially the tip of the thread to which the reinforcing piece was sewn, protrudes from the lower edge of the shoe cover (8) and is cut off with scissors or the like. In this case, since the tip remains as it is, there is a problem that the thread is likely to become frayed during the manufacturing process, especially during sewing with the inner sole.

Furthermore, if the method of making baked balls is made by burning the protruding tip (8) of the thread, there is a problem in that not only the tip of the thread but also the thread cover is burned. In particular, if the shoe cover or reinforcing piece is made of heat-resistant synthetic resin such as PvC leather or soft leather, the heat of baking will easily change the gloss or grain of the shoe cover, and the heat source may The problem was that it would change just by bringing it close. In addition, when the thread is burnt by fire, there is a problem in that if the fire is not properly extinguished, the thread will burn too much and even the sewn area will burn, causing the thread to become frayed.

B.) Means for Solving the Problems This invention provides a shoe having a shoelace in which the sewing thread sewn to the shoelace has a bent shape at the lower peripheral edge of the shoelace. and a method for manufacturing shoes in which an insole is provided on a shoe cover and an outsole is further attached, characterized in that 9 threads around the lower edge of the shoe cover of the sewing thread to be sewn to the shoe cover are bent and sewn. The above-mentioned problems are solved by proposing a method for manufacturing shoes.

(E) Function: Since the sewing thread sewn to the shoe heel is sewn around the lower edge of the hem in a bent shape, during the manufacturing process, especially during sewing with the insole,
In the sewn portion between the reinforcing piece to be stitched and the shoelace, no fraying of the sewing thread occurs at least at the lower end corner of the reinforcing piece to be stitched, etc., so that there is no separation of the two parts.

In addition, since the sewing thread sewn to the outer side of the lower peripheral edge of the hem is sewn out, the adhesive strength of the rising portion of the outsole is increased when the outsole is formed by injection molding of polyurethane resin or the like.

(f) Example The present invention will be explained based on drawings showing embodiments.

Fig. 1 is a perspective view of a shoe cover in which a cover reinforcement piece is sewn to a shoe cover made by sewing a cover member, and Figures 2 to 4 show the shoe cover in Fig. 1. FIG. 3 is an explanatory view showing the shape of the sewing thread used to sew the lace reinforcement piece to the lower peripheral edge of the lace.

The shoe cover (1) is made by cutting a material such as synthetic leather such as PVC leather, genuine leather, or cloth into an appropriate shape and sewing it. (2) is a lace reinforcement piece, which is adhered to the lower lace part and heel part of the shoe lace cover (1), and its peripheral edge is sewn with sewing thread (3). The sewing thread (3) may be made of any material such as nylon, Tetron, or spun thread. The sewing thread (3) used to sew the reinforcing piece (2) to the bottom edge (4) of the bottom of the bottom (4), that is, to the rising part (6) of the bottom (5) after the outsole (5) is injection molded.
At the part to be glued, sew in a bent shape.

FIG. 2 shows a first embodiment of the bent shape of the sewn part,
Attach the tip of the sewing thread (3) to the lower corner (9) of the reinforcing piece (2).
) is folded and sewn along the lower peripheral edge (4) of the sleeve, and has a bent shape similar to an L shape or an inverted shape.

FIG. 3 shows a second embodiment of the bent shape of the sewn part, in which the tip of the sewing thread (3) is overlapped and sewn within the lower peripheral edge (4) of the stitched cover, that is, the stitched reinforcement piece. (2) Bottom corner (9
) is sewn by passing the thread back and forth, and in this embodiment it is a single overlapping stitch, but it may also be a folded shape in which several overlapping stitches are sewn in succession.

The embodiments shown in FIGS. 2 and 3 are bent shapes when the thickness of the sewing thread (3) is usually thin (thickness of No. 8 or less).

FIG. 4 shows a third embodiment of the bent shape of the sewn part,
Fold the part of the sewing thread (3) that protrudes from the lower edge of the stitched cover (4) along the lower side of the lower edge of the stitched cover (4) and return it to the already sewn sewing thread (3) a. Sewing thread (3)
It has a bent shape in which the parts b are crossed and sewn together. The embodiment shown in FIG. 4 is a bent shape when the sewing thread (3) is thick (number 9 or more).

In this way, the tip of the sewn thread (3) is either bent and sewn, or sewn crosswise as shown in Figure 4, so even if it is cut by pulling it, etc., the thread (3) is not sewn. 3) It is difficult for fraying to occur.

Next, a method for manufacturing shoes according to the present invention will be explained based on drawings showing embodiments.

FIG. 5 is a perspective view of a shoe manufactured by the method of manufacturing shoes of the present invention, and FIGS. 6 and 7 are views of the method of manufacturing a shoe cover according to the embodiment of claim 8 of the present invention. It is an explanatory diagram.

The shoe is manufactured by sewing an insole (not shown) to the open bottom of the shoelace (1) and forming the outsole (5) by injection molding or the like.

Shoe laces (1) are formed by cutting materials such as synthetic leather, leather, cloth, etc. into appropriate shapes and then sewing them, and further adhering lace reinforcing pieces (2) to the laces and heel parts as appropriate. , its peripheral edge is sewn with sewing thread (3). The reinforcing piece (2) can be used with only the sewing thread (3) or after applying adhesive to the adhesive surface.
Reinforcing the shoe cover: Sew the periphery of the piece (2) with sewing thread (3) and glue it to the shoe cover (1). At this time, the sewing thread (3) is sewn on the lower peripheral edge (4) of the thread cover by bending it.

As shown in FIG. 2, the manufacturing method of the first embodiment is to sew the lower edge of the sleeve (4) by folding it along the lower side.

As shown in FIG. 3, the manufacturing method of the second embodiment is folding and sewing by overlapping stitches that are returned in the opposite direction within the lower peripheral edge of the cover (4) and then returned to the forward direction again. It may also be folded and sewn by repeating this overlapping process.

In the manufacturing method of the third embodiment, as shown in FIG. 6 and FIG. Fold it back into a loop and sew it (sewing thread (3) b) along almost parallel to the lower edge of the lower edge of the cover (4), almost from above the already sewn thread (3) a. Sew it across at right angles (Figure 6). Furthermore, the lower periphery of the cover (4)
This is a folded stitch formed by cutting the more protruding ring-shaped part (7) (Fig. 7).

Even if the sewing thread (3) is bent and sewn as in these embodiments and then cut with scissors or by pulling, the sewing thread (3) at the lower end corner (9) of the reinforcing piece (2) etc. ) will not fray.

After forming the shoe cover (1) in this way, the insole is sewn on, the shoe cover (1) is hung from the last, and the outsole (5) is attached by injection molding or the like. is manufactured. At this time, the lower peripheral seam part (4) of the shoe cover (1) is covered by the rising part (6) of the outsole (5), so the folded seam part is not exposed and there is no problem in appearance. do not have.

(G) Effects of the Invention Therefore, according to the present invention, it is possible to secure the sewing thread to be sewn to the shoelace from the lower peripheral edge of the shoelace without using a heat source such as a fire. It has the effect of not burning the shoe cover, and preventing the gloss and grain from deforming or deteriorating due to heat. This effect is particularly noticeable in shoes made of heat-resistant materials such as soft leather.

In addition, since no fire is used, there is no disadvantage of overcooking the sewing thread and causing the thread to become frayed.

Furthermore, in this invention, the tip of the sewing thread is cut with scissors or the like so that it does not protrude beyond the periphery of the lower side of the stitch, but since the sewn shape of the lower edge of the stitch is bent, the reinforcing piece The reinforcing piece etc. and the shoe laces will not separate from each other at the lower end corners of the laces.

Also, since the sewing thread was bent and sewn around the lower edge of the cover,
The sewing area is larger than that of conventional soles, and the outsole, particularly when the outsole is formed by injection molding of polyurethane resin, has the effect of improving adhesive strength.

[Brief explanation of the drawing]

1 to 7 are drawings showing embodiments of the present invention, and FIG. 1 is a perspective view of a shoe cover in which a cover reinforcement piece is sewn to a shoe cover made by sewing a cover member. Figures 2 to 4 are
FIG. 5 is a perspective view of a shoe according to the manufacturing method of the present invention; FIG. FIG. 7 is an explanatory diagram showing a method of sewing a shoelace for a deaf person according to claim 8 of the present invention. FIG. 8 shows a conventional example, and is an explanatory diagram when the protruding portion of the sewing thread of the shoe cover is cut or burned. (1) ... shoe cover, (2) ... shoe cover reinforcement piece, (3) ... sewing thread, (4) ... shoe cover lower side Periphery, (5)...Outsole, (6)...
...Rising part, (force... ring-shaped part, (8
)... Protruding thread, (9)... Bottom corner of the reinforcing piece, etc.

Claims (8)

[Claims] (1) Shoes characterized by having a shoe cover, in which the sewing thread sewn to the shoe cover has a bent shape at the lower peripheral edge of the shoe cover. (2) The sewn shape of the lower peripheral edge of the stitched thread is a substantially L-shaped bent shape in which the tip of the sewing thread is bent along the lower side of the lower peripheral edge of the stitched thread. shoes. (3) The shoe according to claim 1, wherein the sewn shape of the lower peripheral edge of the sewing thread is a bent shape in which the tip of the thread is overlapped and sewn. (4) The part of the sewing thread that protrudes from the periphery of the lower part of the sewing thread is bent back and the tip part is sewn along the lower edge of the lower part of the part of the sewing thread. The shoe according to claim 1, which has a bent shape. (5) In a method of manufacturing shoes in which an insole is provided on a shoe cover and an outsole is attached, the sewing thread sewn to the shoe cover may be sewn by bending the sewing thread around the lower edge of the shoe cover. Characteristic shoe manufacturing method. (6) The method for manufacturing shoes according to claim 5, wherein the sewing thread is sewn around the lower edge of the lace, with the tip of the thread being bent along the lower edge of the lower edge of the lace. (7) The sewing of the lower periphery of the stitched thread of the sewing thread is performed by folding and sewing, which is an overlap stitch in which the leading end of the sewing thread is bent back in the opposite direction and then further folded in the forward direction. method of manufacturing shoes. (8) When sewing the periphery of the lower part of the sewing thread, the tip of the sewing thread should once protrude from the lower periphery, and then the protruding part should be bent and returned to the periphery of the lower part of the thread, crossing over the thread that has already been sewn. 6. The method of manufacturing shoes according to claim 5, wherein the shoe is folded and sewn by folding and sewing.