Method of making insole and insole made thereby

Inactive Publication Date: 2006-01-05
CHANG HENG TAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] It is the primary objective of the present invention to provide a method of making an insole, which is practical to make insoles that maintains a high elastic power and provides a satisfactory ventilation effect after a long time of use.

Problems solved by technology

When the insole is compressed, the raised portions tend to deform permanently after a long time of use of the insole, thereby reducing its elastic material property and ventilation effect.

Method used

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  • Method of making insole and insole made thereby
  • Method of making insole and insole made thereby
  • Method of making insole and insole made thereby

Examples

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Embodiment Construction

[0016] Referring to FIG. 1, a method of making an insole in accordance with the present invention includes the steps of (a) material preparation, (b) filling material immersion, (c) baking, (d) material splitting, (e) fabric bonding, (f) cutting and baking, and (g) stamping.

[0017] Referring to FIG. 2, a base sheet material 10 is provided during step (a) material preparation. The base sheet material 10 is molded from a polymeric compound, for example, EVA (Ethylene Vinyl Acetate), having a plurality of circular through holes 12 through the top and bottom sides thereof.

[0018] Referring to FIGS. 3 and 4, after step (a) material preparation, it proceeds to step (b) filling material immersion where the base sheet material 10 is immersed in a fluid filling material 14, enabling the filling material 14 to fill in the through holes 12. The filling material 14 is a different polymeric compound. According to this embodiment, the filling material 14 is latex. The filling material 14 is fille...

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Abstract

A method of making an insole includes the steps of (a) providing a base sheet material having through holes, (b) immersing the base sheet material in a filling material for enabling the filling material to fill up the through holes, (c) baking the base sheet material to cure the filling material, (d) splitting the base sheet material to a desired thickness, (e) bonding a fabric layer to one side of the base sheet material, (f) cutting the base sheet material into semi-finished insole, (g) stamping the semi-finished insole into a finished insole where the filling material protrudes over the top and bottom sides of the base sheet material, and the fabric layer has raised portions supported on the protruded filling material corresponding to the through holes.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a method of making an insole for shoes and more specifically, to the method of making an insole for shoe that has raised portions on the surface. [0003] 2. Description of the Related Art [0004] An insole provides an elastic support to the sole of the user, enabling the user to walk comfortably. In order to enhance the elastic power and ventilation effect of an insole, the insole is made having raised portions protruding over the top surface. When the user pressed the sole on the raised portions of the insole, gaps are left in between the user's sole and the top surface of the insole for ventilation. An insole having raised portions may be molded from polymeric compound, foam material, rubber or the like. The mold has recessed portions in the cavity for forming raised portions on the surface of the insole. Usually, the insole molded integrally by this way has a bottom surface with rec...

Claims

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Application Information

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IPC IPC(8): A43B13/38
CPCA43B1/0027A43B17/08A43B17/02A43B17/003
Inventor CHANG, HENG-TAI
Owner CHANG HENG TAI
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