JPH0736764B2 - 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.

The pattern, shape, etc. of the anti-slip piece provided on the sole of the shoe also serve to enhance the decorative effect when the shoe is displayed and to distinguish it from other shoes. When the shoe sole is provided with unevenness and is molded, the shape and arrangement of the unevenness have a decorative effect and an anti-slip effect. In the case of using the slip prevention pieces made of different materials, the shape and arrangement of the prevention pieces have a pattern of the shoe sole, so the shape and arrangement of the prevention pieces are designed to have a high decorative effect and a slip prevention 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 hole. On the mouth
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.

[0007]

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
The part and the space on the adhesive side are connected by a through-hole, and slip prevention
The method of filling and molding the stopping resin material is to make the shoe sole with good performance.
It can be made, but there are difficulties in the manufacturing process.

According to this method, the recess formed in the leather material for shoe soles is used.
The parts are cut, but due to mechanical limitations, patterns with sharp corners
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.

An object of the present invention is to provide a method of 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.

[0010]

In order to solve the above-mentioned problems, in the present invention, the tip of the leather material for shoe soles corresponding to the toes is used.
From the edge to the arch corresponding to the arch, the ground plane side
And the adhesive surface side torn and separated. At this time from the arch
The part of the heel is not torn and is one piece.

A slip prevention tree is provided on the side of the separated ground plane.
Position where the hole for oil filling is punched out and faces the side of the adhesive surface
Open multiple openings in. After that, the ground side and the adhesive side
Reattach the parts to the shape they had before they were torn. On the ground side
Apply the specified slip prevention template and slip from the adhesive side.
Inject a resin material for preventing lumps and perform filling molding.

According to the present invention, the leather material for soles is torn in half.
The reason for processing is that everything is torn and glued later
And the anti-slip resin and the leather material are strongly bonded
For the first half of the toe, soil composed of only leather material
Displacement that works when walking in the second half from the step to the heel
This is because the power tends to concentrate and there is a difficulty in strength.

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 diagram illustrating a method of manufacturing a shoe sole with an anti-slip piece according to the present invention. The grounding surface 2 and the bonding surface 3 of the shoe sole body 1 are torn from the tip portion to the arch portion 4, and the substantially central portion and the tip portion of the grounding surface 2 are punched into an arbitrary anti-slip piece shape as shown by hatching. . At this time, the strength is improved by punching from the adhesive surface side and making the cut edge of the punching portion 5 inclined so that the punching portion 5 becomes narrower from the peeling surface to the ground surface.

Next, an injection through hole 6 is provided at approximately the center of a portion of the shoe sole grounded surface 2 corresponding to the punched-out portion 5, which is split into two pieces.
A plurality of through-holes 7 are formed at positions that straddle the peripheral edge of the portion corresponding to the punched-out portion 5, and a through-hole 8 is formed at the toe portion. The grounding surface 2 and the bonding surface 3 of the shoe sole are completely bonded with an adhesive.

2 and 3 are plan views of the shoe sole in which the grounding surface 2 and the adhesive surface 3 are bonded together, and FIG. 2 is a plan view of the grounding surface side,
FIG. 3 is a plan view of the adhesive surface side. As shown in FIG. 3, there is a recess at the position indicated by the dotted line on the ground plane, a through hole 6 for injection at the center of the recess 15, and a plurality of through holes 7 so as to straddle the periphery of the recess,
There is a through hole 8 on the toes.

FIG. 4 is a sectional view of a shoe sole in which the grounding surface 2 and the adhesive surface 3 are attached to each other. As described above, the side surface 9 of the recessed portion 15 provided on the ground contact surface 2 of the shoe sole body 1 is inclined, and the recessed portion 15 is punched out so as to greatly spread from the ground contact surface 2 to the peeling surface.

After the adhesive has penetrated into the concave portion 15 of the shoe sole constituted by the punched-out portion 5 and dried, the ground contact surface 2 of the shoe sole 2
Is closely attached to the molding member. A slip-like piece is molded by injecting a paste-like resin material from the injection hole 6 on the adhesive surface 3 to complete a shoe sole with an anti-slip piece. The uneven shape may be transferred to the slip prevention piece by using a molding member having a pattern of unevenness on the contact surface.

FIG. 5 shows a sectional view of the shoe sole with an anti-slip piece of the present invention. The shaded portion in the figure indicates the formed resin portion. The resin is formed in the recess 15 and the through holes 6, 7, and 8. The resin portion, together with the adhesive, is strongly bonded to the leather shoe sole body 1 by the inclination of the side surface 9 of the recess and the through hole 7 and the through holes 6 and 8 at the peripheral edge portion. Since the resin of the through holes 6 and 7 links the resin of the concave portion and the leather of the peripheral edge, the strength of the shoe sole is improved. The resin of the through hole 8 prevents the toe slip prevention piece from peeling off.

The shoe sole with anti-slip pieces produced by the above-described manufacturing method can freely obtain the shape of the anti-slip piece on the ground contact surface, and can also prevent the anti-slip piece at the tip from peeling off. Durability is improved. Further, the resin in the opening opened so as to straddle the periphery of the anti-slip piece connects the leather on the ground surface and the anti-slip piece to further enhance the strength.

[0020]

Embodiments of the present invention will be described with reference to the drawings. FIG. 6 is a plan view on the adhesive surface side of a shoe sole with an anti-slip piece manufactured as an example of the present invention. The anti-slip piece is obtained by punching into the shape of the recess 15 shown by the dotted line in the figure. As the shape of the slip prevention piece, any shape other than that shown in FIGS. 1 to 6 can be freely provided. Recess 15
The locations and the number of the through holes 6 and 7 provided in the peripheral edge of the
Depending on the shape and arrangement of the and the hardness of the sole,
Helps to improve strength.

[0021]

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 of any design. By integrally molding the leather shoe sole and the anti-slip piece, the anti-slip piece on the toe, which was easily peeled off due to the tilt, is less likely to peel off. By integral molding, it is possible to prevent water and the like from seeping from the joint between the leather and the resin portion. Since the pasty raw material can be injected smoothly and evenly, there are effects such as uniforming the quality of the slip prevention piece.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a method for manufacturing a shoe sole with an anti-slip piece according to the present invention.

FIG. 2 is a plan view of the shoe sole on the grounding surface side in the process of manufacturing the shoe sole with the slip prevention piece of the present invention.

FIG. 3 is a plan view of the bonding surface side of the shoe sole in the process of manufacturing the shoe sole with the slip prevention piece of the present invention.

FIG. 4 is a cross-sectional view of the shoe sole in the process of manufacturing the shoe sole with the slip prevention piece of the present invention.

FIG. 5 is a cross-sectional view of the shoe sole in the process of manufacturing the shoe sole with the slip prevention piece of the present invention.

FIG. 6 is a plan view showing an example of a method for manufacturing a shoe sole with an anti-slip piece according to the present invention.

[Explanation of symbols]

 1 Sole sole body 2 Grounding surface 3 Adhesive surface 4 Arch part 5 Punching part 6 Injection through hole 7 Through hole 8 Through hole 9 Side of concave part 15 Concave part

Claims (1)

[Claims] 1. A composite of an anti-slip resin and a leather material.
In the method of manufacturing a raised shoe sole, the leather material for the shoe sole is
To the arch part corresponding to the arch part and the ground side
Partly separating into a bonding surface side portion, the ground surface side portion
The step of opening a hole for resin filling for slip prevention in the above,
Opposite the hole for resin filling for slip prevention on the adhesive surface
Step to open a plurality of through holes at the position to
The side portion of the adhesive surface is re-matched with the shape before the separation and adhered.
Step, put a template on the grounding surface side,
Fewer steps for filling and molding by injecting resin material for lip prevention
Sole with anti-slip piece characterized by including without
Manufacturing method.