JPS5817601B2 - Manufacturing method for upper parts of shoes, sandals, and slippers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Conventionally, it has been common for footwear such as shoes, sandals, and slippers to have uppers and soles manufactured separately and then sewn or glued together.

In addition, these footwear have the shape of the shoe, etc., in order to show the curve of the upper.
In order to attach the carapace and perform the so-called fishing process, special equipment and skill were required, and it was very time consuming.

Moreover, sewing or gluing the upper made by this fishing process to the sole is a time-consuming and labor-intensive process, which poses a problem in productivity.

As a result of various studies in order to solve the above-mentioned drawbacks, the inventor has developed an upper member that is suitable for the various types of footwear and has an upper with fabric attached to the inner surface of the upper and a sole integrally formed.
The present invention has been completed by overcoming the above-mentioned drawbacks.

The present invention provides an upper member in which an upper with a fabric attached to the inner surface of the upper and a bottom including at least a front sole are integrally and three-dimensionally formed.
The process of setting the upper skin can be omitted, preventing the upper skin from losing its shape, and making it possible to easily and economically manufacture shoes, sandals, slippers, and other footwear that are lightweight and extremely comfortable to wear. Further, the manufacturing of the upper member does not require a complicated and expensive injection molding machine and molding die, and it is sufficient to use an inexpensive shoe mold.

The implementation of the present invention will be explained in detail below.

In manufacturing the upper member A of the present invention, a release agent such as silicone resin is applied to the entire circumferential surface of a shoe mold 1 made of aluminum alloy or the like shown in FIG. The shoe mold 1 is made into a gel by mixing vinyl chloride resin, a plasticizer, a stabilizer, etc., or the already gelled chip is heated to about 200°C and melted. The upper part 2A and the front sole part 3A of the shoe mold 1 are immersed in this liquid, the shoe mold 1 is pulled out and cooled, and the shoe mold 1 is pulled out to form an upper as shown in FIG. An upper member N is manufactured in which a skin 2 and a bottom 3 including at least the front sole are continuous and integrally formed in three dimensions.

In addition, number 13 is a hanging tool for a shoe mold.

Furthermore, in order to make the upper member B with an open toe as shown in FIG. 5, the toe portion of the upper member shown in FIG. 2 may be cut.

In addition, when the upper member C of the flat sole 3 is required, such as a slipper, a release agent is applied to a shoe mold (not shown) with a flat bottom surface, and the above-mentioned synthetic resin is added to the molten liquid of the synthetic resin. The carapace and bottom of the mold are soaked, the mold is pulled out and cooled,
The mold is removed to produce an upper member C for slippers as shown in FIG. 4 in which the upper 2 and the flat bottom 3 are continuous and integrally formed in three dimensions.

To manufacture the sandals of the present invention, use the upper member B shown in FIG. Apply adhesive to the entire back surface of the insole 5 and adhere the back surfaces of the front and rear parts protruding from the upper member B and the upper surface of the bottom 3 of the upper member B onto the sole body 4 including the heel part 6. , the sandals are completed as shown in Figure 7.

Also, using the upper member C for slippers as shown in Fig. 4, the inner sole 5
Glue the upper member C for slippers on the front lower surface of the upper member C for slippers, apply adhesive to the entire upper surface of the bottom body 7, and attach the upper member C for slippers to the bottom 3
The lower surface of the slipper and the rear part of the midsole 5 are glued onto the sole body 7 to produce a slipper as shown in FIG.

In addition, apply a mold release agent to the entire circumferential surface of the shoe mold 1 as shown in Fig. 3,
A piece of fabric is tentatively placed on the upper part 2N of the shoe mold 1N, both side walls at 8° and the arched bottom 9 with cellophane tape, etc., and the mold 1A is pulled out and cooled by immersing it in the molten solution of the vinyl chloride resin. When the shoe mold 1N is removed, as shown in Fig. 9, there is an upper shoe member integrally comprising the upper 2 with fabric on the inner surface, the side walls 8, 8, the arcuate butt 9, and the sole 3 continuous to these. ri is formed.

Therefore, an adhesive is applied to the upper surface of the sole 3 of this member to adhere the inner sole 5 to the sole 3, and a sole body 12 having a heel 11 is adhered to the lower surface of the sole 3 to manufacture shoes.

Furthermore, when the upper member N or B is used, a shoe can also be manufactured by bonding a suitable heel tightening band to the upper member.

When manufacturing the above-mentioned sandals, slippers, shoes, etc., the parts to which the adhesive is applied, the order of application, and the upper members N, B, C, D.
, the inner sole 5 and the sole body 4 can be bonded to each other in any order.

The synthetic resin used to form the upper member is a thermoplastic synthetic resin such as vinyl chloride resin, a copolymer of vinyl acetate resin, vinylidene chloride, etc., and a plasticizer,
A gel is obtained by mixing a colorant (with or without), a stabilizer, etc., or a melt is obtained by heating an already gelled chip.

In addition, after manufacturing the above-mentioned upper member, fabrics such as woven fabrics, knitted materials, etc. are adhered to the front and back surfaces of the rear part of the upper part 2 or the front and rear edges of the upper member, or decoration is applied to the surface of the upper part 2. It is also possible to express a figure, glue a decorative piece, a name tag piece, etc., or make an appropriate number of ventilation holes of an appropriate shape in the upper 2 or in the side wall 8 continuous with the upper 2.

The present invention does not require a complicated and expensive injection molding machine and its molding mold, and uses an extremely simple and inexpensive shoe mold such as aluminum alloy to inject fabric onto the inner surface of the upper. To provide an upper member for footwear such as shoes, sandals, slippers, etc., which does not lose its shape, having an integral three-dimensional structure of an upper skin 2 and a sole 3 without fabric.

Moreover, the manufacturing process is extremely easy and simple.

In addition, since the upper member maintains the three-dimensional shape of the upper, shoes, sandals, and slippers using the upper member according to the present invention are easy to wear, and since the inner surface of the upper is covered with fabric, it is comfortable to wear. It does not damage the foot well, and there is no need to use a shape-retaining device even when not in use.

Further, when the upper member of the present invention is used for shoes, sandals, and slippers, the fabric is attached to the curved surface of the upper where it is difficult to attach fabric, so the process of lining the fabric can be omitted, and the manufacturing process can be significantly omitted. And it's easy to do.

Therefore, the product also has characteristics that allow it to be provided economically.

In particular, the present invention has the advantage that since the mold for producing the upper member is inexpensive, it is possible to economically produce a wide variety of footwear of various sizes and small quantities.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the state in which the upper member is formed on the shoe mold;
The figure is a perspective view of the upper member, Figure 3 is a perspective view of another shoe mold, Figure 4 is a plan view of the upper member for slippers, Figure 5 is a perspective view of another upper member, and Figure 6 is a perspective view of another shoe mold. Explanatory diagram for manufacturing sandals, No. 7
8 is a perspective view of the sandal, FIG. 8 is an explanatory diagram of the structure of the slipper, and FIG. 9 is an explanatory diagram of the relationship between the shoe and the upper member. 1... shoe mold, 2... upper leather, 3...
... bottom, 4 ...) bottom body, 5 ... middle bottom.

Claims (1)

[Claims] 1. In a method for manufacturing shoes, sandals, and slippers in which the upper and sole are integrally formed by dipping, a release agent is applied to the entire circumferential surface of a shoe mold 1, and the shoe mold is 1 carapace part. Step 28: Temporarily determine the fabric, and then add the portion corresponding to the upper member to form the shoe mold 1 in a heated melt mixed with a soft synthetic resin such as vinyl chloride resin, a plasticizer, and a stabilizer. After soaking the shoe mold 1 until
An upper member of shoes, sandals, or slippers, characterized in that an upper member 2 with a cloth attached to the inner surface of the upper member and a sole 3 including at least a front sole are integrally and continuously formed by removing the upper member. Manufacturing method.