JPH07195582A - Slush shoes having high shape retaining properties - Google Patents

Abstract

PURPOSE:To manufacture slush shoes of high shape retaining properties which not only generate no wear, softening and deformation but also prevent the feeling of looseness at heal sections from occurring when used, and are comfortable to wear, prevent the external pressure impact by hardening at the time of use and can be reduced in the weight of the whole shoes by decreasing the thickness of its skin. CONSTITUTION:Hardened layers 24 and 25 are formed respectively on heel sections 22 and toe sections 23 to improve the shape retaining properties, skin 11 is overlapped, and bonded on the positions of the heel sections 22 and toe sections 23 of lining 12 of the hardened layers 24 and 25 by applying a resin bonding agent having a hardening properties by crosslinking, and/or a resin bonding agent 26 of high hardness or the like on the positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slash shoe which is light in weight and has a high shape-retaining property in which a lining and a skin are adhered to each other at required places to improve their hardness.

[0002]

2. Description of the Related Art There is a known slush molding method as one of the methods for manufacturing shoes made of synthetic resin, the outline of which will be described. First, the skin 11 as shown in FIG. 8A is created by slush molding. That is, a desired shoe mold is made of genuine leather, a hollow mold (not shown) is obtained from this, and vinyl chloride plastisol is injected and heated therein to semi-gelate the sol, and then the ungelled sol is formed. The skin 11 is obtained by discharging, and further heating the remaining semi-gelled layer to completely gel and then cooled.

Then, as shown in FIG. 8B, for example, after the insole 15 such as texon is adhered to the bottom of the skin 11, the insole is preliminarily attached to the last 33 used as a support base for adhesion with a foot-shaped form. The lining 12 created by sewing the cloth 13 is suspended, and the skin 11 and the lining 12 are fixed by sewing at the sewn portion 14 on the upper portion of the shoe 1e to complete the shoe 1e. It should be noted that the heel portion of the skin 11 is separately provided with a heel 16 that is gelled by injecting and heating vinyl chloride plastisol. The shoe 1e thus slush-molded has a structure in which a skin 11 molded from a vinyl chloride resin is combined with a lining 12 made of a general fiber material sewn with a midsole cloth 13 or a laminated product. .

[0004]

By the way, in such a conventional slash shoe, it is necessary to make the skin thick in order to provide shape retention, which is a drawback that the weight of the slash shoe is increased. In addition, the shape retention due to the softening of the skin is also poor, and the foot may fall out during use (heel lift).
It is not uncommon for the feeling and the feeling of conformity to the feet to be poor.

The present invention has been made on the basis of such a conventional technique, and not only does the shoe not get settled, softened, or deformed, but also it is possible to prevent a feeling of foot slippage at the heel portion during use, so that it is comfortable to wear. Another object of the present invention is to obtain a slush shoe having a high shape-retaining property, which prevents external pressure impact during use due to curing and can reduce the weight of the entire shoe by reducing the skin thickness.

[0006]

DISCLOSURE OF THE INVENTION The present invention provides a resin adhesive having a curability and / or a high-hardness resin adhesive, which is hardened by cross-linking, on either a heel portion and / or a toe portion of a lining and / or a skin. A slush shoe having a high shape-retaining property, which is obtained by applying an agent, adhering the agent to the skin and / or the lining, and then curing the agent together with the resin adhesive.

Further, according to the present invention, a synthetic resin solution having a curability is applied or impregnated on the entire surface of the lining or the heel portion and / or the toe portion, and then the heel portion and / or the toe portion is or is applied to these. A slash shoe having a high shape retention property obtained by applying a resin adhesive having a curability and / or a resin adhesive having a high hardness to the opposite skin side and adhering and curing the resin adhesive. is there.

[0008]

The slush shoe of the present invention is a resin adhesive having a curability or a resin adhesive having high hardness (hereinafter, simply referred to as "resin adhesive", which cures a slush-molded skin and a lining as a backing material by crosslinking. The above-mentioned resin adhesive is applied to the entire surface of the lining or the heel portion and / or the toe portion by applying or impregnating with a synthetic resin liquid having curability. The lining and the skin are adhesively cured by using the synergistic effect of curing the resin adhesive itself and physical curing due to adhesion to prevent softening and deformation of the shoe body and reduce the thickness of the skin. The weight can be reduced. Further, since the shape-retaining property is enhanced, it is possible to prevent the feeling of foot slippage at the heel portion and the external pressure impact during use.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A slash shoe according to an embodiment of the present invention will be described below with reference to the drawings, but the present invention is not limited to this embodiment. In addition, in describing this embodiment, a pair of short shoes with a low cover portion manufactured by slush molding will be taken as an example. However, in the case of short shoes, as shown in FIG. 5A, by forming a ridge 32 on the inner surface of the mold 31 corresponding to the mouth opening 21 of the short shoe, the skin 1
In the slush molding of No. 1, a constriction 11b is formed. Therefore, as shown in FIG. 5B, the edge 11a is bent inward at this position to be doubled, and the edge 12a of the lining 12 is superposed and fixed to this inner surface. As a result, the mouth opening 2
1 looks good and is also reinforced.

A slash shoe 1a according to the first embodiment of the present invention.
As shown in FIG. 1A, hardened layers 24 and 25 are respectively provided on the heel portion 22 and the toe portion 23 to improve the shape retention. As shown in FIG. 1B, the hardened layers 24 and 25 are formed on the heel portion 22 and the toe portion 2 of the lining 12.
A resin adhesive having a curability or a resin adhesive 26 having a high hardness is applied to a position corresponding to 3 to polymerize and bond the skin 11, and then the skin 11 and the lining 12 together with the resin adhesive 26 itself. By applying the synergistic effect of physical curing due to curing and adhesion, it is intended to prevent softening and deformation of the slash shoe 1a and reduce the thickness of the skin 11 to reduce the weight of the entire shoe.

When the resin adhesive 26 applied to the lining 12 has a low viscosity and is in an undried state, the resin adhesive 26 penetrates into the lining 12 and oozes out to the contact surface side. Further, if the resin adhesive 26 applied to the lining 12 adheres in a dry state, leaching will not occur, but the adhesion will not be sufficient and the adhesive strength will be weak and peeling will occur, and the lining 12 will adhere to the curved surface inside the skin 11. First of all, wrinkles occur. Therefore, the resin adhesive 26 is preferably used for the bonding operation in the semi-dried state.

As the resin adhesive to be used, a resin adhesive which is hardened by cross-linking of an epoxy type or the like and a resin adhesive which is solvent type and has a high hardness which is hardened by drying are used. Examples of the resin adhesive include thermoplastic resin type, thermosetting resin type, synthetic rubber type, and mixed types thereof, and this form can be used in a state of solution, aqueous solution, emulsion and the like. As a specific example of this resin adhesive 26,
Acrylic resin, polyurethane, vinyl acetate resin,
EVA (ethylene-vinyl acetate copolymer resin) type, polyvinyl chloride type, polyester type, polyamide type, polystyrene type, CR (chloroprene rubber) type, SBR (styrene-butadiene rubber) type, NBR (acrylonitrile-)
Examples thereof include butadiene) type, epoxy resin type, protein type, starch type, natural rubber type, and mixtures thereof. As the bonding method, there are heat bonding, cross-linking bonding, etc. in addition to the usual bonding.

As the hardened layer 24 of the heel portion 22, a counter having a resin adhesive applied on both sides (heel portion reinforcing material)
May be included. Alternatively, a soft material such as a non-woven fabric may be used as the counter. Further, the resin adhesive 26 is applied to the corresponding portions (the heel portion 22 and the toe portion 23).
It may be applied to the skin 11 side, or may be applied to both the lining 12 and the skin 11 side.

Next, the slash shoe 1b of the second embodiment will be described with reference to FIG. This slash shoe 1b has a heel part 2
2 is provided with a hardened layer 24 to reinforce the heel portion 22 to improve the shape retention property, and since the other configurations, functions and effects are almost the same as those of the first embodiment, the description thereof will be omitted.

Next, the slash shoe 1c of the third embodiment will be described with reference to FIG. In this slash shoe 1c, a hardened layer 25 is provided on the toe portion 23 to reinforce the toe portion 23 to improve the shape retention property, and other configurations, actions and effects are almost the same as those of the first embodiment. , The description is omitted.

Next, the slash shoe 1d of the fourth embodiment will be described with reference to FIG. In this slash shoe 1d, after the synthetic resin liquid 27 having a curability is applied or impregnated on the entire surface of the lining 12, the heel portion 22 and / or the toe portion 23 are cross-linked or the portion on the skin 11 side facing these is cross-linked. A resin adhesive having a curability and / or a resin adhesive 26 having a high hardness is applied and cured to prevent the softening and deformation of the entire shoe and to provide a comfortable touch and harmony. Excellent shape retention.

As the curable synthetic resin liquid 27, acrylic resin type, polyurethane type, vinyl acetate resin type, EVA (ethylene-vinyl acetate copolymer resin) type,
Polyvinyl chloride type, polyester type, polyamide type, polystyrene type, CR (chloroprene rubber) type, SBR
Examples thereof include (styrene-butadiene rubber) type, NBR (acrylonitrile-butadiene) type, epoxy resin type, protein type, starch type, natural rubber type, or a mixture thereof. Further, as the synthetic resin liquid 27, those having a relatively high hardness and those having a relatively high hardness by cross-linking and curing are preferable. Slash shoe 1 of the fourth embodiment
All other configurations, operations, and effects of d are substantially the same as those of the first embodiment, and therefore description thereof will be omitted.

Next, the slash shoe of the fifth embodiment is shown in FIG.
~ 7 will be described. This slash shoe is, for example, the first
In the slash shoes 1a to 1d of the fourth to fourth embodiments, as shown in FIG.
2'and / or the toe portion 23 'have a lining structure using a different material for the purpose of reinforcing effect and / or shape-retaining effect. Where the lining 1
As the material of 2 ′ itself, a cloth such as a bore, a non-woven fabric, a raw cloth, a knitted cloth, a tricot, a laminated product of these with polyurethane or a rubber foam, vinyl chloride leather, synthetic leather or the like is used. Further, the material of the heel portion 22 'and / or the toe portion 23', which is a different material, is different from the material of the lining 12 'itself and has a reinforcing effect and / or a shape-retaining effect.
Nonwoven fabrics, raw fabrics, knitted fabrics, canvas fabrics and the like, or laminated products of these with polyurethane and rubber foam, vinyl chloride leather, synthetic leather, natural leather, laser board and the like are used. The material of the lining 12 ′ itself and the material of the heel portion 22 ′ and the toe portion 23 ′ are the materials of the heel portion 22 ′ and / or the toe portion 2 among these materials.
The material 3'may have a more effective reinforcing effect and / or shape-retaining effect than the material of the lining 12 'itself, and can be used in an appropriate combination.

As a method of superimposing the lining 12 'itself with the heel portion 22' and / or the toe portion 23 ', for example, as shown in FIG. 7, a palm stitch (FIG. 7a) or a full stitch (FIG. 7) is performed.
b to FIG. 7c), zigzag stitch (FIG. 7d), worship stitch (FIG. 7e)
~ Fig. 7f) and other sewing means. In FIG. 7, reference numeral 41 is a suture thread, and reference numeral 42 is a covering tape that covers the front surface and / or the back surface of the lining.
Further, the polymerization method is not limited to this sewing means, and other methods such as adhesion with an adhesive and heat fusion can be used. Thus, in the fifth embodiment, the lining 1
As 2 ', the heel portion 22' and / or the toe portion 23 'has a lining structure using a different material for the purpose of reinforcing effect and / or shape-retaining effect. The formality is secured. All other configurations, operations, and effects are substantially the same as those of the first embodiment, and therefore their explanations are omitted.

The embodiment of the present invention has been described above. However, the present invention is not limited to this embodiment, and the invention is included in the present invention even if there are design changes and the like without departing from the scope of the invention. For example, in the embodiment, the boots having a low hem cover manufactured by slush molding are taken as an example, but the invention is not limited to this, and can be applied to any other slash shoes such as boots and boots.

[0021]

EFFECTS OF THE INVENTION In the slush shoe having a high shape retention property of the present invention, a resin adhesive having a curability and / or a resin adhesive having a high hardness which is hardened by crosslinking is interposed between the skin and the lining, and Since the synergistic effect of the hardening of the adhesive itself and the physical hardening of the adhesive is utilized, the shoe body is prevented from being set, softened or deformed, and the shape retention is improved. In addition, a feeling of slipping out of the heel portion during use and deterioration of wearing comfort due to this will not occur, and not only an external pressure impact can be prevented, but also the thickness of the skin can be reduced and the weight of the shoe can be reduced.

[Brief description of drawings]

1 is a schematic view of a slash shoe of a first embodiment according to the present invention, FIG. 1A is a vertical sectional view, and FIG. 1B is a sectional view taken along line BB of FIG. 1A.

FIG. 2 is a schematic vertical sectional view of a slash shoe according to a second embodiment of the present invention.

FIG. 3 is a schematic vertical sectional view of a slash shoe of a third embodiment according to the present invention.

FIG. 4 is a schematic vertical sectional view of a slash shoe according to a fourth embodiment of the present invention.

5A and 5B are schematic vertical cross-sectional views for explaining a method for forming a mouth opening portion of slush-molded boots, in which FIG. A is a diagram when a skin is created, and FIG.

FIG. 6 is a perspective view of a lining used for a slash shoe according to a fifth embodiment of the present invention.

FIG. 7 is an enlarged schematic cross-sectional view showing a sewing state of the lining, in which a is a palm stitch, FIG. B-c is a main stitch, d is a zigzag stitch, and e to f are a side stitch. It is a figure which shows a wearing state.

FIG. 8 is a view of a conventional slash shoe, FIG. A is a perspective view of a skin, and FIG. 8B is a schematic longitudinal sectional view.

[Explanation of symbols]

 1a, 1b, 1c, 1d Slash shoes 11 Skin 12 Lining 22 Heel part 23 Toe part 26 Hardened layer 27 Hardened layer

Claims (3)

[Claims] 1. A resin adhesive having curability and / or a resin having high hardness, which is hardened by crosslinking, is applied to the heel portion and / or the toe portion of any of the lining and / or the skin, and the skin and Slash shoes having high shape retention obtained by adhering to the lining and / or curing with the resin adhesive. 2. The entire surface of the lining or the heel portion and / or the toe portion is coated or impregnated with a curable synthetic resin liquid, and then the heel portion and / or the toe portion or the skin side facing them. In the place of
A resin adhesive having curability and / or curable by crosslinking
Alternatively, a slash shoe having a high shape retention property obtained by applying a resin adhesive having a high hardness, adhering and curing the resin adhesive. 3. The lining structure, wherein the heel portion and / or the toe portion is made of a different material for the purpose of reinforcing and / or shape-retaining effect.
Alternatively, a slash shoe having a high shape retention property as described in 2.