JPH0736766B2 - Method for manufacturing shoe sole with slip prevention piece - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a shoe sole with an anti-slip piece, which is a composite of leather and a resin material.

[0002]

2. Description of the Related Art Conventionally , a shoe sole is durable and elastic.
If you use a material that has high
Has been. And to strengthen the anti-slip function
Various ideas have been made. For example, molding as a shoe sole
If the flexible material is used, the shoe sole can have various shapes.
To prevent slipping
It

Materials that cannot be molded freely, such as leather materials
When used, it is a slip-resistant material that does not slip easily.
The stop is integrated with the ground contact surface of the shoe sole. Anti-slip
There are various types of pieces, for example, a cylindrical projection
Resin is vulcanized and molded into the holes provided in the shoe sole
In some cases, a resin sheet is bonded.

A pattern provided on the sole for preventing slippage,
The shape and the like help to enhance the durability and the decorative cost when the shoe is displayed, and to distinguish it from other shoes. When the shoe sole is molded with unevenness, the pattern is formed by the unevenness of the shape arrangement so as to have both a decorative effect and an anti-slip effect.

The anti-slip pieces made of different kinds of materials have a shape and arrangement of the anti-slip pieces that form the pattern of the shoe sole. Therefore, the shape and arrangement of the anti-slip pieces are designed to have a high decorative effect and anti-slip effect.

However, a resin anti-slip sheet is attached.
The best way to wear and prevent slipping is to use leather and resin sleeves.
There is a problem with the durability of the anti-stick sheet.

To improve the durability of this bond,
The applicant disclosed in Japanese Patent Laid-Open No. 3-139302
The mechanical side of the sole material of the shoe
In the recess cut to about half the depth, to the top of the sole material
The resin is filled and molded through the through holes. Above the through hole
The resin filled in the space of the part and the resin in the recess on the ground side are connected.
As it continues, the anti-slip resin and leather material are strong
Is tied to. Also, the inclination of the sidewall of the recess on the ground side
It works to strengthen the bond between leather and resin.

[0008]

The object of the invention is to be Solved by machining of the above
A recess cut to a depth of about half of the ground side of the leather material for the sole
Part and the space on the non-grounded side are connected by a through hole and slip there
The method of filling and molding the prevention resin material has a good performance sole
However, there are difficulties in the manufacturing process.

[0009] In this method, the recess formed in the leather material for the sole of the shoe is used.
Parts are by cutting, sharp corners against mechanical limit pattern
It is difficult to make patterns and fine patterns. Shoe sole
The anti-slip measures have the effect of preventing slippage,
Various patterns are required because decorative effects are required
Has been done.

Also, slip prevention at the part that hits the toes
If you make up one piece, violently shake when walking.
Since it is the part to receive, slip provided in this part
The protective piece tends to peel off easily.

It is an object of the present invention to provide a method for manufacturing a shoe sole with an anti-slip piece, which eliminates the restriction on the shape of the anti-slip piece of a leather shoe sole and prevents the anti-slip piece from peeling off easily.

[0012]

[Means for Solving the Problems ]
For the purpose of the present invention, in the center of the ground contact surface of the leather material for soles,
Slip-preventing one-sided hole is punched out in minutes, and leather material for shoe soles
Part of the tip of the material is torn by splitting it into the grounding surface side and the adhesive surface side.
Separation, the ground plane side of the separated part of the sole leather material
Punch out the desired shape of the anti-slip piece.
Empty multiple through holes that lead to the punched part at the position corresponding to
And glue the separated parts of the sole leather material together,
Contact the grounding surface of the leather material for the sole with the molding member
Inject the resin raw material from the mounting surface side and fill the slip prevention piece
Mold.

The resin raw material on the paste on the adhesive surface is filled in the punched portion and then overhangs on the leather portion around the punched portion. The pasty resin raw material on the adhesive surface side of the tip portion overhangs on the leather portion where the leather and resin are joined. The central portion and the tip portion of the resin raw material on the bonding surface side are linked.

A method of manufacturing a shoe sole with an anti-slip piece according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of a shoe sole on the side of a grounding surface for explaining a method of manufacturing a shoe sole with an anti-slip piece according to the present invention. According to the shape of the anti-slip piece, the tip portion of the shoe sole body 1 is torn into two pieces, the ground surface side 2 and the adhesive surface side 3, and the torn ground surface side 2 is a desired slip prevention piece as shown by hatching. Die in shape.

At this time, a through hole 6 is provided on the adhesive surface side 3 which is split into two pieces. Punch in the desired shape of the anti-slip piece as shown by the hatching in the approximate center of the grounded portion. Adhesive side 3
The strength is improved by punching from the punched portion, making the cut end of the punched portion 4 inclined, and punching so that the punched portion 4 becomes narrower from the adhesive surface to the ground surface.

FIG. 2 is a plan view on the ground contact side of the shoe sole for explaining the method of manufacturing the shoe sole with the slip prevention piece according to the present invention.
2 shows a shoe sole in which the shoe sole main body shown in FIG. A punching portion 4 is provided substantially at the center of the ground contact surface side 1, and a recess 5 is formed at the tip portion. A through hole 6 is provided in a portion corresponding to the concave portion on the adhesive surface side.

FIG. 3 is a cross-sectional view of the shoe sole for explaining the method of manufacturing the shoe sole with anti-slip pieces of the present invention, and shows the cross-section of the shoe sole of FIG. As described above, the side surface of the punched-out portion 4 provided substantially in the center of the ground contact surface side 2 of the shoe sole body 1 and the punched-out portion recessed side surface 7 of the recessed portion 5 at the tip end are inclined from the adhesive surface side 3 The punching portion 4 is punched so as to become narrower toward the ground contact surface side 2.

FIG. 4 is a plan view on the adhesive surface side showing an example of a shoe sole according to the method for producing a shoe sole with slip prevention pieces of the present invention. As shown by the hatched portion, the injected paste-like resin material is filled in the punched-out portion 4 shown by the dotted line, and overhangs the leather portion on the bonding surface side 3 of the peripheral edge of the punched-out portion 4.

At the same time, the paste-like resin material injected into the recess 5 is filled and overhangs the leather portion at the bonding surface side 3 of the joint portion between the leather and the resin. The through-hole 6 is located at the toe portion to prevent peeling. As shown by the diagonal lines, the protruding portion of the paste-like resin material on the adhesive surface 3 has a central portion and a distal end portion linked to each other, so that the strength is improved.

After the adhesive has permeated and dried on the side surface of the punched-out portion 4 and the side surface of the concave portion 5 at the distal end portion, the ground contact surface of the shoe sole is brought into close contact with the molding member. A slip prevention piece is molded by injecting a paste resin material from the adhesive surface side 3 to complete a shoe sole with a slip prevention piece. It is preferable to transfer to the slip prevention piece by using a molding member having a pattern of unevenness on the contact surface.

FIG. 5 is a sectional view for explaining an example of a shoe sole according to the method for manufacturing the shoe sole with slip prevention pieces of the present invention, and shows a cross section of the shoe sole shown in FIG. The shaded portion in the figure indicates the formed resin portion. The resin portion is formed on the punched-out portion 4, the concave portion 5, and the protruding portion 8 of the resin material.

The resin portion is strongly adhered to the leather sole body 1 together with the adhesive by the side surface of the punched-out portion 4, the concave portion 5, the side surface of the concave portion, the protruding portion 8 on the adhesive surface side, and the through hole 6 of the toe. Since the central portion and the tip portion of the resin on the adhesive surface side 3 are linked, the strength of the shoe sole is improved.

FIG. 6 is a plan view on the adhesive surface side for explaining another example of the shoe sole according to the method for manufacturing the shoe sole with slip prevention pieces of the present invention. As shown by the dotted line in the figure, the punched portion 4
Then, the recess 5 at the tip is punched out in a desired shape to obtain a slip prevention piece.

The shape of the anti-slip piece may be any shape. Regardless of the shape of the punched portion, the modified elliptical shape of the resin portion protruding to the peripheral edge of the punched portion 4 and the recess 5 is preferable from the bottoming work.

The shoe sole with anti-slip pieces manufactured by the above-described manufacturing method can freely obtain the shape of the anti-slip piece on the ground contact surface, enhance the decorativeness of the shoe, and prevent the tip from peeling off. The durability of the bottom is improved.

[0026]

According to the method for manufacturing a shoe sole with an anti-slip piece of the present invention, the shape of the anti-slip piece is not restricted,
It is possible to make shoe soles with anti-slip pieces of any design. By integrally molding the leather shoe sole and the anti-slip piece, the anti-slip piece on the toe portion, which was easily peeled off due to tilting, is less likely to peel off.

Further, the integral molding and the protrusion of the resin portion on the adhesive surface side can prevent the permeation of water or the like from the joint between the leather and the resin portion. In addition, since the paste-like resin raw material can be injected smoothly and evenly, there is an effect such as uniforming the quality of the slip prevention piece.

[Brief description of drawings]

FIG. 1 is a plan view of a shoe sole according to the method for manufacturing a shoe sole with an anti-slip piece according to the present invention on the ground contact surface side.

FIG. 2 is a plan view of a shoe sole according to the method for producing a shoe sole with an anti-slip piece according to the present invention on the side of a grounding surface.

FIG. 3 is a cross-sectional view of a shoe sole according to the method for manufacturing a shoe sole with anti-slip pieces of the present invention.

FIG. 4 is a plan view on the adhesive surface side for explaining an example of a shoe sole according to the method for manufacturing the shoe sole with slip prevention pieces of the present invention.

FIG. 5 is a cross-sectional view illustrating an example of a shoe sole according to the method for manufacturing the shoe sole with slip prevention pieces of the present invention.

FIG. 6 is a plan view on the adhesive surface side for explaining another example of the shoe sole according to the method for manufacturing the shoe sole with slip prevention pieces of the present invention.

[Explanation of symbols]

 1 Sole sole body 2 Grounding surface side 3 Adhesive surface side 4 Punched portion 5 Recessed portion 6 Through hole 7 Punched portion Recessed side surface 8 Overhang portion

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Claims (1)

[Claims] 1. A composite of an anti-slip resin and a leather material.
A method for manufacturing a raised shoe sole, comprising:
Approximately the center part of the
In the punching process, the tip toe of the leather material for the shoe sole is grounded.
Side and adhesive surface side to partially separate, said shoe sole
Attach the desired surface of the separated leather material to the ground contact side.
Corresponding to the punching process and the punching part
At a position to open a plurality of through holes leading to the punched part
Before separating the separated part of the leather material for the sole,
Adhering to shape, forming the ground plane of the shoe sole leather material
Abutting the parts for injection and injecting the resin raw material from the adhesive side.
The anti-slip piece on the bonding surface side
At least including a step of filling and molding so as to be linked
And a method for manufacturing a shoe sole with an anti-slip piece.