JPH0630809A - Manufacture of waterproof shoe - Google Patents

Abstract

PURPOSE:To provide a method of manufacturing waterproof shoes, in which any one of various materials may be optionally selected for an instep adapted to be superposed with the outer surface of a skin as a reference body, without being specifically limited to a waterproof material, and which is highly waterproofable, and is lightweight. CONSTITUTION:At first, a seamless synthetic resin skin 11 having integrally molded into a bag-like shape and having a bottom part 12 lined with an insole 15, is set, as a reference body, on a last 01, and thereafter, an instep 13 made of a material different from that of the skin 11, is set thereon being superposed with and joined to the skin 11 so as to be integrally incorporated therewith. Then, a lightweight polyurethane sole 14 is secured to the outer surface of the bottom part of the skin 11, a part of the instep 13 being clamped between the sole 14 and the bottom part 12 of the skin 11, leaving the body last 01 inverted.

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 waterproof shoes in which the material of the cover can be freely selected.

[0002]

2. Description of the Related Art Conventionally, as highly waterproof footwear, all rubber shoes, slush-molded shoes, injection boots, rubber lengths, etc. are commercially available. The outer skin of these shoes is made of rubber or vinyl chloride resin, and recently, shoes whose surface is subjected to flocking (electro-planting) have also appeared.

[0003]

By the way, in the conventional waterproof shoes using rubber or vinyl chloride resin as described above, since the material itself is exposed on the surface, it is necessary to change the skin material. Not only is it difficult to wipe off the cold feel of the material, but it is also heavy. Further, the flock processed product is difficult to be applied to other different materials, and the processing is troublesome, which is not easy and expensive.

The present invention has been made against the background of such conventional problems, and by using a cover which is superposed and adhered to the outer surface of the skin serving as a reference body, it is not particularly limited to a waterproof material, It is an object of the present invention to provide a method of manufacturing a waterproof shoe which is capable of freely selecting different materials and has high waterproofness and light weight.

[0005]

According to the present invention, a highly waterproof skin integrally formed in a bag shape is hung on the last of the main body, and a cover made of a different material is hung to be polymerized and integrated. Alternatively, the present invention provides a method for manufacturing a waterproof shoe, characterized in that a skin integrated with a cover made of a different material is hung on the last of the main body, and then the shoe sole is joined and integrated.

Further, according to the present invention, a side mold and a bottom mold are fitted to a main body last in which a skin integrated with a cover of a different material is suspended to form a shoe sole molding void, and the shoe sole molding is performed. Provided is a method for manufacturing a waterproof shoe in which a shoe sole molding material is injected into a void to integrally mold the shoe sole.

[0007]

The waterproof shoe produced according to the present invention is excellent in waterproofness because the integrally formed skin in the shape of a bag is used as a reference body for suspending the main body last when manufacturing the waterproof shoe. Further, since the hood cover is lap-bonded to the skin prior to the molding of the shoe sole, the material can be freely selected, and a warm waterproof shoe having a desired design can be obtained.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In the method of the first embodiment shown in FIG.
After the vinyl chloride resin slurry having the inner bottom 15 installed therein is hung in the body last 01 by using the seamless synthetic resin skin 11 integrally formed into a bag shape by the slush method as a reference body, it is separated from the skin 11. The cover 13 made of the different material is further hung and joined to the skin 11 to be integrated. Next, with the main body last 01 set upside down, a lightweight polyurethane shoe sole 14 is fixed to the outer surface of the bottom 12 of the skin 11 with a part of the string type cover 13 sandwiched between the so-called hand. Waterproof shoes by sticking means 1
Form 0. When a backing cloth is required inside the main body skin 11, the backing cloth may be suspended in advance in the main body last 01 and then the above-described method may be performed.

For the superposition of the skin 11 and the cover 13 in the first embodiment, the outer surface of the skin 11 and the entire inner surface of the cover 13 may be integrally bonded, or the outer surface of the skin 11 may be covered with the cover 13. It is also possible to polymerize in a loose state and bond only the bottom portion 12 of the skin 11 and the inner peripheral edge of the cover 13 to each other. In the case of the former, a shoe with a firm waist and no deformation is obtained, and in the case of the latter, the skin and the covering are polymerized and integrated in a loose state, so there is an air layer and heat retention. It is possible to provide shoes in which the effect and the original texture of the scabbard itself are utilized. In addition, the skin 11 and the cover 13 are the last 0 of the main body.
It may be integrated in advance before being suspended in 1.

Next, in the method of the second embodiment shown in FIG.
A vinyl chloride resin skin 11 integrally formed by a slush method in which a midsole 15 and a back cloth 16 are integrally formed in a bag shape in a bottom portion 12 is hung as a reference body on a main body last 01, and then the skin 11 is formed. A cover 13 made of a different material different from the above is further hung and integrally joined to the skin 11. Alternatively, the cover 13 is bonded to the skin 11, and only the inner circumference of the cover 13 is bonded and polymerized to the bottom 12 to be integrated.

Then, a pair of side mold 04 and bottom mold 03 are fitted to the main body last 01 to form a shoe sole molding void 05, and a liquid foamed polyurethane resin 06 is used as a shoe sole molding material in the void 05. Inject and sole 2
Simultaneously with molding 4, the skin 11 and a part of the cover 13 are fixed to the waterproof shoe 20. The bottom mold 03 and the side mold 04 constitute a shoe sole molding die 02. The skin 11 and the cover 13 may be integrated in advance before being suspended in the main body last 01, as in the first embodiment.

In the waterproof shoes 10 and 20 of both embodiments, the main body last 01 is hung by the skin 11 as a reference body,
Since the method of providing the shoe soles 14 and 24, which are made of urethane foam resin, is provided after stacking and covering the covering 13 by suspending them, the waterproof shoes 10 and 20 having excellent waterproofness can be obtained, and as the covering 13 Can be used by freely selecting various materials as required. That is, the cloth 13 is not limited to a waterproof material, and is made of leather, synthetic leather, vinyl chloride leather, a raw material, etc. as an expression, such as silvering, suede, brushed, woven pattern, non-woven fabric, flocking, and the feel and appearance. Various expressions can be included.

It should be noted that the skin 11 is not limited to the slush method and may be injection molded, and the material thereof is not limited to vinyl chloride resin, and natural rubber, synthetic rubber, etc. May be
The cover 13 is not limited to the string type, but may be a so-called California cover in which the cover and the insole are integrally sewn. In this case, the adhesive polymerization between the bottom 12 of the skin 11 and the cover 13 is performed on the entire inner peripheral surface of the bottom 12 and the insole. Furthermore, the insole 15 and the back cloth 16 are
Prior to suspending the skin 11 on the main body last 01, the skin 11 may be provided in advance, or after the shoe soles 14 and 24 are attached, the skin 11 and the like may be extracted from the main body last 01 and then attached. . Further, as the material of the shoe sole 24, in addition to polyurethane foam, vinyl chloride resin, various synthetic rubbers, natural rubber, etc. can be adopted.

Although the embodiment of the present invention has been described above, the present invention is not necessarily limited to this embodiment, and even if the design is changed without departing from the scope of the invention, the present invention is included.

[0015]

As described above, according to the present invention,
We provided a method to attach the shoe sole after stacking and covering the bag-shaped skin on the bag-shaped skin hung on the last of the main body, so that waterproof shoes with high waterproofness can be obtained, and the cover is especially waterproof. Raw material, suede,
It is possible to freely select the desired material such as flocked products, and this makes it possible to finish shoes with excellent appearance and feel. Also, when the skin and the hood cover are bonded and integrated on the entire surface, a shoe with a firm waist and no deformation can be obtained, and the skin and the hood are polymerized and integrated in a loose state. In this case, an air layer is interposed, and it is possible to provide a shoe in which the heat retaining effect and the original texture of the garment itself are utilized.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view for explaining a method for manufacturing a waterproof shoe according to a first embodiment of the present invention when a main body last is set upside down.

FIG. 2 is a vertical cross-sectional view for explaining the method for manufacturing the waterproof shoe of the second embodiment according to the present invention.

[Explanation of symbols]

 01 Main body last 02 Sole molding mold 03 Bottom mold 04 Side mold 05 Shoe sole molding void 10 Waterproof shoes 11 Skin 13 Covers 14 Sole 15 Midsole 20 Waterproof shoes 24 Sole

Claims (2)

[Claims] 1. A highly waterproof skin integrally formed in a bag shape is hung on the last of the main body, and a cover made of a different material is hung to be polymerized and integrated, or a sack made of a different material. A method for manufacturing a waterproof shoe, which comprises suspending a skin integrated with a cover on a main body last, and further joining and integrating shoe soles. 2. A shoe bottom molding void is formed by fitting a side mold and a bottom mold into a body last in which a skin integrated with a cover made of a different material is suspended, and a shoe sole is molded in the shoe sole molding void. The method for manufacturing a waterproof shoe according to claim 1, wherein the shoe sole is integrally molded by injecting a molding material.