Method of making insole
A method of making insoles has the steps of: a) Attaching a fabric layer and a bottom layer on opposite sides of foamed main member to have a substrate having a. b) Cutting the substrate to have a plurality of plates with shapes substantially like the insoles, wherein each of the plates has a top and a bottom at opposite sides and a periphery between the top and the bottom thereof. c) Cutting the peripheries of the plates to have a taper periphery respectively.
1. Field of the Invention
The present invention relates generally to shoes, and more particularly to a method of making insoles, in which no hot-press molding is applied in the method.
2. Description of the Related Art
Conventional insoles are classified into flat insoles and molded insoles. The flat insole is made from a foamed substrate, which is made of Polyurethane (PU) or Ethylene Vinyl Acetate (EVA) etc., put on a mold and cut by a cutter to have a shape of the insole. The substrate after cut still keeps its original character to provide a well damping capacity. As shown in
The molded insole is made of a thicker substrate being hot pressed into a predetermined sharp. The molded insole has a predetermined profile at a top thereof to fit foot and a curved periphery to fit shoe, such that the molded insole is considered to support foot well. The molded insole, which is processed by hot press, is harder than the flat insole, such that people feels not so well with the molded insole. In addition, if the curvature of the molded not fitting the shoe, it provides foot more compression than the flat insole.
The aspect of insole is decided by the cutter and the mold, in other words, the insoles with various sizes are cut by various cutters and molds respectively. Furthermore, it has to prepare a plurality of hot-press molds of various sizes for the insoles also. Therefore, it cost much for the manufacturers to have the cutters and the molds. To reduce cost on the cutters and the molds, manufacturers usually select the insoles closing to the aspect of shoes rather than design the insoles to fit the shoes. As a result, the molded insoles are not fitted to shoes as expectation.
The advantages and the disadvantages of the conventional flat insole and the molded insole are described hereunder:
The advantages of the flat insole: lower cost in fabrication, softer and well elasticity (it is because the substrate keeps the original character still) and lighter in weight.
The disadvantages of the flat insole: poor support to the arch of foot and cannot put in a shoe with a protrusion on the sole associated with the foot arch.
The advantage of the molded insole: well support to foot and can put in a shoe with a protrusion on the sole associated with the foot arch.
The disadvantages of the molded insole: higher cost in fabrication (because the cutters and molds and the raw material needed more than the flat insole) and harder, heavier in weight and poor elasticity.
SUMMARY OF THE INVENTIONThe primary objective of the present invention is to provide a method of making insoles, which the insoles can be applied to any shoe and keeps the original character of the foamed substrate, as well as the insole provide foot a well support than the conventional flat insole. The insole of the present invention is not processed by the hot press to lower the cost thereof and reduce the waste of raw material.
According to the objective of the present invention, a method of making insoles comprises the steps of: a) Preparing a substrate having a foamed main member. b) Cutting the substrate to have a plurality of plates, wherein each of the plates has a top and a bottom at opposite sides and a periphery between the top and the bottom thereof. c) Removing parts of the peripheries of the plates to have a taper periphery respectively.
BRIEF DESCRIPTION OF THE DRAWINGS
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It has to be mentioned that the taper periphery of the insole should have various profiles to meet the actual requirement. The manufacturers should have the unique design to cut the periphery to meet the very shoes. The fabric layer is provided to prevent the main member from damage when the person steps on the insole and walks, and the bottom layer is provided to give a greater friction between the shoe and the insole, therefore, there is less movement of the insole in the shoe when walking. The process of cutting the periphery should apply scrubbing or grinding also. In conclusion, the main scope of the present invention is to manufacture an insole with a taper periphery, and the taper periphery is not formed by hot press, such that the profile of the taper periphery, the arch portion, which kind of the material made of the insole and with or without the fabric layer and the bottom layer are not the restrictions of the present invention.
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Claims
1. A method of making insoles, comprising the steps of:
- a) preparing a substrate having a foamed main member;
- b) cutting the substrate to have a plurality of plates, wherein each of the plates has a top and a bottom at opposite sides and a periphery between the top and the bottom thereof, and
- c) removing parts of the peripheries of the plates to have a taper periphery respectively.
2. The method as defined in claim 1, wherein the taper periphery of insole has a portion with a width thereof greater than the rest.
3. The method as defined in claim 1, further comprising the step of attaching a fabric layer on the main member in the step a.
4. The method as defined in claim 1, further comprising the step of attaching a bottom layer on the main member in the step a, wherein the bottom layer has a friction coefficient greater than that of the main member.
5. The method as defined in claim 1, wherein the method of removing the periphery is cutting.
6. The method as defined in claim 1, wherein the method of removing the periphery is scrubbing.
7. The method as defined in claim 1, wherein the method of removing the periphery is grinding.
8. A method of making insoles, comprising the steps of:
- a) preparing a substrate having a foamed main member, and
- b) cutting the substrate to have a plurality of plates, wherein each of the plates has a taper periphery respectively.
9. The method as defined in claim 1, wherein the substrate is cut by laser.
Type: Application
Filed: Feb 25, 2005
Publication Date: Sep 15, 2005
Inventor: Hsien-Hsiung Cheng (Taipei City)
Application Number: 11/065,058