JP2000079001A - Footwear with tape portion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce footwear with tape portions efficiently and so that it has various functions by free combinations in material, color and the like between the tape portions and outsoles and has various designs. SOLUTION: A last mold is framed to include a suspended vamp 2, and a tape portion 4 is injection-molded to include a vamp cover 4r and a skirt 4s. The skirt 4s defines an outsole-fitting groove, where an outsole 3 molded out of a different material is fitted and joined by the handmade process. The groove of the tape portion 4 may be divided into a heel side and a toe side, where a heel-side outsole and a toe-side outsole are joined by the handmade process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to footwear in which a sole is formed by combining an injection molding method and a handmade method.

[0002]

2. Description of the Related Art Conventionally, there has been known a method of molding footwear such as sports shoes by injection molding using a mold. In this injection molding method, footwear of uniform quality is known. It has advantages such as continuous mass production and labor saving by automation.

[0003]

However, in the case of bottoming by injection molding, for example, in the case of injection molding of different materials, combinations of moldable materials are limited, and the form of footwear soles is limited by the mold. Therefore, the functions and designs are limited, and it is almost impossible to have appropriate functions for each of a plurality of footwear having various purposes. For this reason, for example, a technique is known in which a specific portion of a shoe sole is made of a different material, and the different material is inserted into an injection molding mold and insert-molded.
Even in this case, there is a limit to the provision of functions and designs, and it is particularly unsuitable for the production of footwear of various kinds and small lots.

Accordingly, the present invention is particularly suitable for the production of small lots of footwear having various functions and designs, and various functions can be provided by freely combining different materials.
Another object of the present invention is to provide footwear capable of developing various shoe sole designs.

[0005]

In order to achieve the above object, the present invention relates to a footwear having a tape portion formed on an outer surface of a joint portion between an outsole and an upper, wherein the tape portion is formed on a bottom surface by an injection molding method. The outsole was formed in a state where a concave portion for fitting the outsole was formed on the side, and the outsole was fitted into the concave portion by a handmade method and joined.

If the tape portion is injection-molded as described above, a concave portion for fitting the outsole is formed on the bottom surface side, the outsole is fitted into the concave portion, and the outsole is manually bonded by a handmade method. It is possible to diversify the material, shape, color, design, etc. of the outsole, which is particularly important in terms of function and design, while automating laborious parts and saving labor, making it possible to respond to various functions and Outsole can be varied. Further, when the outsole is joined, the outsole is fitted into the concave portion formed by the tape portion and joined, so that the inner surface of the tape portion can be joined by bonding or the like, and the joining strength can be increased.

[0007] Here, the tape portion is a band-shaped shoe provided around the side surface along the joint portion between the upper and the outsole, and covering both the joint peripheral portion of the upper and the joint peripheral portion of the outsole with a predetermined width. It refers to the bottom portion, and includes those integrally formed with the toe guard on the toe side, the heel support on the heel side, and the like. In this case, the footwear includes not only shoes but also sandals.

[0008] The concave portion of the tape portion may be formed substantially over the entire area from the heel side to the toe side of the shoe sole, or may be formed separately on the heel side and the toe side. in this case,
The outsole is separately manufactured in a shape that can be fitted into the recess.

Further, the material of the outsole and the tape portion may be the same material or different materials. When the same material is used, the component ratio and the like may be changed.

[0010] Further, the material of the outsole and the tape portion are made of different materials. By using different materials in this way, for example, it is possible to increase the slip resistance while reducing the weight, or to reduce the cost while improving the shock absorption, and it is possible to obtain a single material An effect that cannot be obtained can be obtained.

According to a third aspect of the present invention, the concave portion for fitting the outsole formed in the tape portion is formed separately into a heel side concave portion and a toe side concave portion, and a separate heel side outsole is formed in each of these concave portions. And the toe side outsole was fitted and joined.

In this way, the outsole fitting concave portion is divided into the heel side and the toe side, and the heel side outsole and the toe side outsole are fitted and joined, respectively, so that, for example, the lightweight portion can be inserted into the tape portion of the non-step portion. It becomes possible to insert-mold a different material or the like, so that the weight can be further reduced, and, for example, the color expression can be diversified and the color variations can be enriched.

According to a fourth aspect of the present invention, a step portion is formed around the fitting portion of the outsole, the step portion being in contact with the lower end surface of the tape portion when fitted into the concave portion.

By forming the step portion in this way, for example, when the outsole is fitted into the concave portion of the tape portion, the contact area between the tape portion and the outsole is widened, and for example, when the outsole is joined with an adhesive or the like. Strength can be increased. Also,
If an outsole having no step portion and an outsole having the step portion are used together, a plurality of designs can be developed with one tape portion.

[0015]

Embodiments of the present invention will be described with reference to the accompanying drawings. Here, FIG. 1 is a side view of a shoe of a first configuration example according to the present invention, FIG. 2 is a bottom view thereof, and FIG.
FIG. 4 is a cross-sectional view taken along the line AA of FIG. 4, FIG. 4 is a view showing various examples of the outsole of the shoe according to FIG. 1, FIG. 5 is a side view of the shoe of the second configuration example according to the present invention, and FIG. 7 is a sectional view taken along the line BB of FIG. 5, FIG. 8 is a side view of a shoe of a third configuration example according to the present invention, FIG.
FIG. 10 is a sectional view taken along line CC of FIG. 8, FIG. 11 is a sectional view taken along line DD of FIG. 8, FIG. 12 is a sectional view of a shoe of a fourth configuration example according to the present invention, FIG. FIG. 13 is a sectional view taken along line EE of FIG. 12.

The footwear according to the present invention is applied to, for example, shoes. As shown in FIG. 1, the shoe 1A of the first configuration example has a tape portion 4 around the joint between the upper 2 and the outsole 3. The outsole 3 and the tape portion 4 constitute a shoe sole, and the tape portion 4 is formed by an injection molding method. The outsole 3 is attached to a fitting recess formed at the time of forming the tape portion 4 by a handmade method. It is characterized by being attached.

That is, a side mold or a last mold (not shown) is assembled with the last mold (not shown) in which the upper 2 is suspended to define a space for forming a tape portion. A tape material 4 is formed by injecting a molding material such as vinyl chloride, polyurethane, thermoplastic rubber, polysulfide rubber, rubber, or the like into the space for use. At this time, as shown in FIG. 3, the tape portion 4 has an upper cover portion 4r that covers at least the peripheral portion of the upper cover 2 with a predetermined width, and the tape portion 4 further hangs downward from the upper cover portion 4r with a predetermined width. The skirt portion 4s is formed, and the wraparound portion 4q that goes under the last mold is formed as necessary.

As shown in FIG. 2, the skirt portion 4s is formed over the entire circumference of the shoe sole. In the step of forming the tape portion 4, the skirt portion 4s allows the skirt portion 4s to extend over the entire area on the bottom surface side. A concave portion for fitting the sole 3 is formed.

The outsole 3 is made of an optional molding material,
For example, a material such as EVA (ethylene-vinyl acetate copolymer), polyurethane, rubber, or the like, which is different from the material of the tape portion 4, or a material obtained by combining these materials can be fitted into the recess by any means. It is molded into a shape, fitted into the recess by a handmade method, and joined by adhesion or the like. At this time, the outsole 3 is bonded not only to the upper surface but also to the inner surface of the skirt portion 4s and the outsole 3.
By also performing the outer surface of the above, it is possible to join firmly.

By such a molding method, it is possible to easily combine different materials which are difficult to combine by injection molding to form a shoe sole, and to change the material, form, color, design, etc. of the outsole 3. It is easy to have various functions.

That is, FIG. 4 shows an example in which various functions are provided by changing the form of the outsole 3. As shown in FIG. 4 (A), the outsole 3 is made up of a plurality of layers, for example, an outer layer 3 near the ground plane. Is made of a material having excellent wear resistance, and the inner layer 3i is made of a material having excellent cushioning properties, so that the shoe has excellent durability and is hard to be tired even when worn for a long time, or as shown in FIG. By forming a hollow portion h on the upper surface of the sole 3, a shoe having excellent impact resistance can be obtained, or as shown in FIG.
By inserting a hard plate k made of metal or the like into the middle part of the multiple layers, it is possible to make a safety fire-resistant shoe which does not harm the foot even if a nail or the like is stepped on, or as shown in FIG. The design d can be given a characteristic. FIG. 4D shows an example in which the wraparound portion 4q is not formed in the tape portion 4, but the tape portion 4 may have such a form.

In a shoe having such various functions, the tape portion 4 which is a complicated process in the sole portion of the shoe is formed by injection molding, so that parts and the like can be shared while saving labor. In this manner, the outsole 3 where the function and design are particularly important can be efficiently formed by finishing it by hand.

Next, a shoe 1B of a second configuration example according to the present invention will be described with reference to FIGS. In the sole of the shoe 1B, the tape portion 4 is first injection-molded in substantially the same procedure as in the above example to form a concave portion surrounded by the skirt portion 4s over the entire region of the shoe sole, and then the outsole is formed in the concave portion. Paste 3

At this time, the upper part of the outsole 3 is shown in FIG.
As shown in FIG. 2, a step g is formed around the entire circumference of the fitting portion fitted into the concave portion.
Is in contact with the lower end surface of the skirt portion 4s of the tape portion 4, and the entire contact surface including the lower portion is adhered and fixed.

On the ground contact side of the outsole 3, an anti-slip material 5 made of a non-slip material such as rubber containing ceramic is attached to the heel portion and the toe portion so as to prevent slip when walking. Have been. And this anti-slip material 5
May be applied either before or after the outsole 3 is joined to the tape portion 4.

As in the second configuration example, if a step g is formed around the fitting portion of the outsole 3, and the step g is also joined, the joining strength can be increased. At the same time, if used together with the outsole 3 of the shoe 1A of the first configuration example, shoe soles of different forms can be manufactured with one tape portion 4, and diversification of designs can be achieved. Further, by attaching the anti-slip material 6, not only the anti-slip property is improved but also the color variation is diversified.

Next, a shoe 1C of a third configuration example will be described with reference to FIGS. This shoe 1C has a tape portion 4
When molding, without forming a recess on the entire bottom surface,
After being formed separately in the heel side concave portion and the toe side concave portion, the heel side outsole 3K is fitted and joined in the heel side concave portion, and the toe side outsole 3T is fitted and joined in the toe side concave portion. .

For this reason, as shown in FIG. 11, the non-stepped portion is formed only of the molding material of the tape portion 4, and the thin skirt portion 4s is formed from both side surfaces on the toe side to the front surface.
It is formed from both sides on the heel side to the rear side. Then, an anti-slip material 5 made of a non-slip material such as ceramic-containing rubber is attached to the ground surface side of the heel-side outsole 3K and the toe-side outsole 3T, thereby improving the anti-slip property. The sticking of the anti-slip material 5 may be performed at a stage before the outsole 3K, 3T is joined to the tape portion 4 or at a stage after the outsole 3K, 3T is joined.

In the shoe 1C as described above, since the heel side outsole 3K and the toe side outsole 3T are separately bonded, it is possible to diversify the design, for example, to enrich the color variation.

FIG. 12 shows that the insert member 6 such as EVA is positioned at the stepped portion on the bottom of the insole 2 when the tape portion 4 of the shoe 1C of the third configuration example is injection-molded. The shoe 1D of the fourth configuration example in which the heel side outsole 3K and the toe side outsole 3T are fitted into and joined to the heel side recess and the toe side recess after injection molding.

It is preferable to embed the insert material 6 inside the non-stepped portion of the tape portion 4 because it is possible to further reduce the weight and improve the shock absorption.

The present invention is not limited to the above embodiment. Those having substantially the same configuration as those described in the claims of the present invention and exhibiting the same operation and effect belong to the technical scope of the present invention. For example, FIG.
The outsole 3 in various forms shown in FIG. 1 is merely an example, and other functions and the like (not shown) may be provided. Further, a step portion g may be formed around the fitting portion of the heel side outsole 3K and the toe side outsole 3T as shown in FIG. 8 so as to abut the lower surface of the skirt portion 4s of the tape portion 4.

[0033]

As described above, in the footwear provided with the tape portion according to the present invention, the tape portion is formed by the injection molding method in a state where the concave portion for fitting the outsole is formed on the bottom surface side. Since the outsole is fitted inside and joined by a handmade method, laborious parts are automated and labor saving is achieved. In addition, various materials and shapes of the outsole where functions and designs are important Therefore, the outsole corresponding to various functions can be efficiently molded. In addition, since the outsole is fitted into the recess and joined, the joint can be firmly joined.

When the material of the outsole and the material of the tape portion are different from each other, for example, the anti-slip property is improved while the weight is reduced, and the cost is reduced while the shock absorbing property is improved. Such a thing can be easily performed, and footwear having functions adapted to various purposes can be easily formed. Further, the outsole fitting recess is formed separately into the heel side recess and the toe side recess, and the separate heel side outsole and the toe side outsole are fitted into each recess. In this case, for example, a wide variety of colors can be enriched and the design can be diversified. At the same time, for example, a lightweight different material can be insert-molded in the irregular portion to further reduce the weight.

According to a fourth aspect of the present invention, if a step is formed around the fitting portion of the outsole to come into contact with the lower end surface of the tape portion when fitted into the concave portion, the bonding strength between the tape portion and the outsole is formed. And a plurality of design expressions can be made with one tape part.

[Brief description of the drawings]

FIG. 1 is a side view of a shoe of a first configuration example according to the present invention.

FIG. 2 is a bottom view of the same.

FIG. 3 is a longitudinal sectional view of the same.

FIGS. 4A and 4B are diagrams showing examples of various forms of an outsole, wherein FIG. 4A shows an example in which the outsole has a multilayer structure, and FIG. 4B shows an example in which a hollow portion is formed on the upper surface of the outsole to improve impact resistance. , (C)
Is an example in which a hard plate such as a metal is inserted in the middle of the multilayer to ensure safety, and (D) is an example in which the sole design is characterized.

FIG. 5 is a side view of a shoe of a second configuration example according to the present invention.

FIG. 6 is a bottom view of the same.

FIG. 7 is a sectional view taken along line BB of FIG. 5;

FIG. 8 is a side view of a shoe of a third configuration example according to the present invention.

FIG. 9 is a bottom view of the same.

FIG. 10 is a sectional view taken along line CC of FIG. 8;

11 is a sectional view taken along line DD of FIG. 8;

FIG. 12 is a sectional view of a shoe of a fourth configuration example according to the present invention.

FIG. 13 is a sectional view taken along line EE of FIG. 12;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Shoes, 2 ... Upper, 3 ... Outsole, 3K ... Heel side outsole, 3T ... Toe side outsole, 4 ... Tape part,
g ... step.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) B29C 45/14 // B29L 31:50

Claims (4)

[Claims] 1. A footwear having a tape portion formed on an outer surface of a joint portion between an outsole and an upper, wherein the tape portion includes:
The outsole is formed in a state where a concave portion for fitting the outsole is formed on the bottom surface side by an injection molding method, and the outsole is fitted and joined in the concave portion by a handmade method. Footwear with a tape part. 2. An article of footwear having a tape portion according to claim 1, wherein the outsole is made of a different material from the material of the tape portion. 3. The footwear provided with the tape portion according to claim 1 or 2, wherein the outsole fitting recess formed in the tape portion is separated into a heel side recess and a toe side recess. Footwear provided with a tape portion, wherein a separate heel-side outsole and a toe-side outsole are fitted and joined in the respective recesses. 4. The footwear provided with the tape portion according to claim 1, wherein the foot portion of the outsole has a lower portion around the fitting portion when the fitting portion is fitted into the concave portion. Footwear provided with a tape portion, wherein a step portion abutting on an end face is formed.