JPH0655167B2 - How to make slippers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a slipper.

(Prior Art) Conventionally, according to Japanese Patent Laid-Open No. 62-106701, pressurization and heating are performed while applying a mold having a lacuate shape to a felt-like cloth material made of a thermoplastic polymer stable fiber or the like as a raw material. By a shaping process and a cutting process to be applied, a three-dimensional cliff member having a mortar shape integrally provided with an outward flange-shaped fastening edge on the hem edge is formed, and an appropriate bottom member is arranged on the lower surface of this mortar member. A method of manufacturing footwear is known in which the fastening edge is fixed to the outer peripheral edge of the bottom member.

Further, according to Japanese Patent Application Laid-Open No. 50-72750, a male material in the heated state having a convex part for forming the toe part and a convex part for forming the upper part, and By pressing and deforming by a female mold having a concave portion for forming the toe portion and a concave portion for forming the upper portion corresponding to both convex portions, the upper portion material has a raised portion for the toe portion and an upper portion for the upper portion. A method for manufacturing footwear such as sandals and shoes having an unreturned upper part, characterized in that a raised portion is formed and the upper part material is adhered and fixed to the bottom skin of the sandals and shoes. It is known.

(Problems to be Solved by the Invention) The product obtained by the former method of manufacturing footwear in the above-mentioned known example is shaped into a desired shape by pressurizing and heating while applying a mold, Since the heat still remains after the shape, it is in a state of being easily deformed due to its thermoplasticity, and there is a possibility that it may be deformed by the external pressure applied during the subsequent process, and there is a problem that the shape deformation cannot be prevented.

Also, in the product obtained by the latter method of manufacturing footwear such as sandals and shoes in the above-mentioned known example, the upper member is pressed and deformed by the male and female molds in a heated state, and the toe ridge and the instep are formed. Although the ridges for the parts are formed, there is a problem that it is unavoidable that the parts are gradually deformed because no means for fixing the deformed state is provided.

Therefore, the present invention, after forming the instep member into a desired shape,
An object of the present invention is to provide a method of manufacturing a slipper that can fix its shape and reliably prevent the shape from being deformed.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an instep member having an instep material composed of a felt made of a mixed raw material of a low melting point synthetic fiber and a high melting point synthetic fiber as a bottom member. After fastening, the above instep material is heated to a temperature near the melting point of the low melting point synthetic fiber in a heating environment, and then the instep member is pressed by a cooling mold while the instep material is in a heated state. The instep member is formed by cooling by cooling.

(Example) To explain an example of the present invention with reference to the drawings, first, about 1
170 ° C. with a composite of polypropylene treated at 20 ° C. and polyethylene treated at about 165 ° C. (ES fiber)
The material obtained by laminating the dough (2) on the lower surface of the felt-like body (1) obtained by making the mixed raw material with the polyester treated in step 1 into a felt shape by the needle punching method and then heat-melting at 110 to 130 ° C. It is cut to form an instep material (3), and a cloth instep material (3) 'is attached to the upper surface of this instep material (3) to form an instep member (4), and separately from this. The insole member (7) is constructed by cutting a material obtained by laminating the fabric (6) on the upper surface of the felt-like body (5) obtained by the needle punching method, and the insole member (7) is heated in a heating environment. Immediately after heating to ~ 130 ° C, the insole material (7) is cooled (1) by the upper mold (8) and the lower mold (9).
Molded into a shape with an upper surface (11) that conforms to the lower surface of the foot by pressurizing and cooling with (0), and further, separately from these, sponge core (13) with vinyl,
The outsole (14) made of cloth, leather or the like is attached to form the outsole (15), and similarly, the heel core (16) is formed, and then the heel core (15) is placed on the outsole (15). 16) and insoles (7)
Polymerize with the insole member (7) facing up and superimpose the instep member (4) on the front half of these insole members (7) using an instep suspension machine (not shown). While using the instep suspender, the edges of the outsole (15), the heel core (16), the insole member (7) and the instep member (4) are sewn together with the thread (18), After that, remove it from the instep suspender and heat the whole environment (20)
It is heated to 80 to 130 ° C. in the inside, and after this heating, it is taken out of the heating environment (20) and the lower mold for cooling is put inside and outside the instep member (4) while the at least the instep member (4) is in a heated state. (21) is contacted and cooled to a predetermined temperature, and after this cooling the lower mold for cooling
(21) is removed to obtain the finished product.

The present invention relates to a low melting point polyester treated at 110 ° C.
It may be carried out by using a felt made of a mixed raw material of high melting point polyester treated at 70 ° C.

(Advantageous effects of the invention) As described above, the present invention heats the instep material, and cools the instep member by pressurizing and cooling with the cooling die while the instep material is in a heated state to form the instep member. It is molded, and in particular it cools at the same time as shaping by pressurization and removes heat to make it difficult to restore it later and fix the shape, so it is possible to reliably prevent the former member from deforming. It is effective.

[Brief description of drawings]

FIG. 1 is a perspective view showing an instep member, FIG. 2 is a sectional view showing a state where an insole material is placed in a heating environment, and FIG. 3 is a sectional view showing a state where the insole member is molded by a cooling mold. Figures and 4 are cross-sectional views showing a semi-finished product in which the outsole, heel core, insole member, and instep member are sewn in a heating environment, and Fig. 5 is a semi-finished product molded by a cooling mold. Cross-sectional view showing the state of
FIG. 6 is a sectional view showing the finished product. (1)… felt-like body, (2)… fabric, (3)… insole material, (3) ′
… Instep material, (4)… Instep member, (5)… Felt body, (6)…
Fabric, (7) ... Insole member, (8) ... Upper mold, (9) ... Lower mold, (10) ...
Cooling mold, (11)… Top surface, (13)… Sponge core, (14)… Outer skin, (15)… Outsole, (16)… Heel core, (18)… Yarn, (20)… Heating Environment, (21) ... Lower mold.

Claims (1)

[Claims] 1. An instep member having an instep material composed of felt made of a mixed raw material of low-melting point synthetic fiber and high-melting point synthetic fiber is fixed to a bottom member, and then the instep material is heated to the above-mentioned low level in a heating environment. Melting point is characterized by heating to a temperature near the melting point of the synthetic fiber, and then, while the back material is in a heated state, cooling the upper member by pressurizing and cooling with a cooling mold to form the former member. How to make slippers.