KR20160002051A

KR20160002051A - Customized Insole and Manufacturing Method Thereof

Info

Publication number: KR20160002051A
Application number: KR1020140080769A
Authority: KR
Inventors: 김용덕; 김동우
Original assignee: 주식회사 비엠시스
Priority date: 2014-06-30
Filing date: 2014-06-30
Publication date: 2016-01-07

Abstract

The present invention relates to a customized insole which enables a user to mold an insole according to the sole shape of the user and, more specifically, to a pre-heel cup for a customized insole which includes a supporting layer made of a paper, a sponge, a non-woven fabric, or a knit, and a water-curable resin impregnated or coated on the supporting layer, and to a customized pre-insole in which the pre-heel cup is coupled to the lower surface of a cushion layer part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a customized insole,

The present invention relates to a customized insole, and more particularly to a customized insole that allows a user to shape an insole to match the shape of his sole.

Barefoot is best when it comes to foot health, but since it is difficult to live barefoot, various shoes have been developed for various purposes. Footwear is basically made of a structure that restricts the movement of the foot. It is common to use an insole (insole) on the inner bottom of the shoe to protect the sole of the shoe wearer and to alleviate the impact of the foot when walking or standing .

Fig. 1A shows a photograph of a hard plastic material heel, Fig. 1B shows a photograph of a functional insole made of a heel cup, a heel cushion and a cushion layer. As can be seen from the photograph, the insole has a heel cup of relatively hard material which protects the ankle by stably fixing the both sides and the arch of the back of the foot and the heel not moving relatively when walking, and a cushion Layer. The heel may be formed only from the heel to the ball, which is folded at the foot when walking, and at the center of the heel, there may be a heel cushion for absorbing the shock applied to the heel when walking. The cushion layer portion is usually composed of a cushioning material layer of a synthetic resin material and a cover material layer of artificial leather or vinyl paper or a fiber material adhered to the upper surface thereof. In addition, various materials and shapes of pads may be added to increase functionality.

On the other hand, a medial longitudinal arch, a lateral logititudinal arch, and a transverse arch are formed concavely on the soles of the feet. The shape and size of these arches is determined by the structural shape and arrangement of the bones, primarily the ligaments and muscles that fix and move between the bones. Because the growth of bones, ligaments, and muscles varies among people, the shape of the sole varies from person to person. However, conventional insole is mass produced with reference to 'average' foot shape and can not be suitable for individual feet having various shapes and structures. For example, if you do not use an insole with a structure that is suitable for an individual, it is not easy to fit because the insole does not fit well with the foot, and it is difficult to effectively disperse the pressure of the sole. If it is used for a long time, This can cause pain or injury to the feet, or can easily cause fatigue.

In order to solve such a problem, a technique of providing an insole for shaping according to a person's foot characteristic has been suggested.

Patent Documents 10-0434168 and 10-2034-0031073 disclose a method of acquiring foot shape information of a user by using clay or gypsum or using a three-dimensional scanner and then making molds based on the information to produce personalized insole, A method and an apparatus are proposed. According to this, it is possible to manufacture a customized insole only in a place where a predetermined device exists, and it is difficult to obtain an insole production cost (individual mold production cost) excessively or to obtain a fully customized insole.

In Patent Documents 10-2004-0004293 and 10-1166703, a hot melt (thermoplastic resin) layer, which is hard at room temperature and heated to 70 to 110 ° C, is placed so that the user can heat the insole by a dryer or an oven to soften A personalized insole in which the insole is cooled while being put in shoes and the three-dimensional molding is performed in accordance with the foot shape and the characteristics of the insole, and Patent Document 10-1044456 discloses a dedicated heating apparatus for heating such an insole. However, according to these techniques, there is a need for a separate heating device and there is a risk of burns because the insole heated to a high temperature must be 'worn'.

Other Patent Documents 10-2009-0045834 and 10-2011-0087710 include a heat generating portion and a thermoplastic resin layer which are heated by an external electric power supply so that the user supplies electricity to the heat generating portion to soften the thermoplastic resin layer A method of molding by the above method is disclosed in Japanese Patent Application Laid-Open No. 10-1276093. In the patent 10-1276093, there is a cured resin layer containing an encapsulated foaming agent, and a customized insole in which a cured resin layer is foamed and molded when a capsule is blown Is presented. This method is not realistic because the production cost of the insole is excessively consumed.

Patent No. 10-0434168 Patent Document 10-2013-0031073 Patent Document 1: Patent No. 10-1166703 Patent No. 10-1044456 Patent Document 10-2009-0045834 Patent Document No. 10-2011-0087710 Patent No. 10-1276093

SUMMARY OF THE INVENTION It is an object of the present invention to provide a customized insole that can be safely and easily formed to conform to the shape of the sole of a user.

In order to accomplish the above object, the present invention provides a pre-hill for a customized insole comprising a supporting layer made of paper, a sponge, a non-woven fabric or a woven fabric, and a hydraulically- Is a pre-insole that is customized to be combined.

As described above, according to the present invention, since the heel cup can be formed by supplying water, the user can easily and safely manufacture the customized insole without special tools, measuring devices or techniques, do.

FIG. 1A is a photograph of a hard plastic material heel, and FIG. 1B is a photograph of a functional insole comprising a heel cup, a heel cushion, and a cushion layer.
2 is an exemplary bottom view and longitudinal section vertical view of a custom pre-insole according to the present invention.
FIG. 3A is a side cross-sectional view of a process of forming a custom pre-insole according to the present invention, and FIG. 3B is a side cross-sectional view of a customized insole in a state in which molding is completed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the appended drawings illustrate only the contents and scope of technology of the present invention, and the technical scope of the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the technical idea of the present invention based on these examples.

In the present invention, the terms' pre-hill (11) 'and' pre-insole (10) 'refer to flat plate-like' pre- it means.

As described above, the present invention relates to a pre-heel cup 11 and a custom pre-insole 10 for a customized insole 10.

In the present invention, the pre-heel cup 11 for the customized insole 10 comprises a support sheet of paper, a sponge, a non-woven fabric or a knitted fabric, or a composite material, and a hydraulically hardened resin impregnated or coated on the support sheet

The hydroscopic resin means a pre-polymer which remains in an uncured state and reacts with water to cause hardening. For example, in the present invention, a polyurethane prepolymer can be applied as the hydro-hardening resin. The polyurethane prepolymer is a semisolid compound which is a step prior to the reaction with H ₂ O to cause a curing reaction. Modifie isocyanate having an NCO group at both ends with a CH molecular structure as a base reacts with a polyether diol having a molecular structure of OH at both ends and a polyether triol to form a polyurethane prepolymer state. The water reacts with water or intentionally added water to form a urea, and a curing reaction is started.

The hydro-hardening resin is impregnated or coated with a paper, a sponge, a non-woven fabric, or a knitted fabric support sheet of a single material or a composite material, and the support sheet may be one sheet or several sheets may overlap. The pre-heel cup 11 composed of the water-curable resin impregnated or coated on the support sheet and the support sheet is hardened by the subsequent water supply so as to be relatively hard, and is formed to conform to the user's foot shape in this process.

On the other hand, the center of the pre-heel cup 11 may be provided with an opening to which a heel cushion is attached for absorbing impact applied to the heel during walking.

The pre-heel cup 11 for a customized insole 10 according to the present invention made of a water-curable resin and a support sheet can be packaged in a waterproof wrapper and circulated and formed into a customized heel cup 11 by an end user. The custom molding method will be described later.

The pre-insole 10 according to the present invention includes a cushion layer 12 and the pre-heel cup 11 coupled to the lower surface of the cushion layer 12. The pre-heel cup 11 may be coupled to the entire bottom surface of the cushion layer 12 (not shown), or may be coupled only to a portion corresponding to the arch and heel of the bottom surface of the cushion layer 12. it is preferable that the thickness of the pre-heel cup 11 becomes gradually thinner from the heel side to the toe side when the front half cushion layer 11 is joined to the entire bottom surface of the cushion layer part 12 so that the front part of the foot can be elastically warped.

In the customized pre-insole 10, the cushion layer 12 has a cushioning material layer 12a made of a synthetic resin material and a cover material layer 12b made of synthetic leather or a vinyl or fiber material bonded to the upper surface thereof, . FIG. 2 shows an exemplary bottom view and a vertical sectional view in the longitudinal direction of a customized pre-insole 10 having a pre-heel cup 11 coupled to the heel, the back of the foot, and the arch.

The pre-heel cup 11 and the pre-insole 10 according to the present invention can be customized by molding in the following manner.

First, the pre-heel cup 11 or the custom pre-insole 10 for a customized insole 10 according to the present invention, which is packaged, is opened and water is supplied by dipping in water or taking out water or spraying water , The pre-heel cup 11 or the pre-insole 10 is placed on an elastic plate (e.g., a sponge having a thickness of 5 to 10 cm) and the user stands on the top (see Fig. 3A) Insole 10 or the pre-insole 10 is put on the shoe, and the user stands by wearing the shoe and keeps it for a predetermined time (time for initial curing) (referred to as a 'shaping process'). At this time, the pre-heel cup 11 is hardened in a state where the pre-heel cup 11 is changed according to the user's sole shape, and the "customized heel cup 11" or the "customized insole 10" "Will be created. FIG. 3A is a side sectional view showing a process of forming a customized pre-insole 10 according to the present invention to a user, and FIG. 3B is a side sectional view of a customized insole 10 in a completed state.

After that, if necessary, it is cut according to the user's foot size, and then the customized heel cup 11 or the insole 10 is attached to the user's shoe. In the case of the customized heel cup 11, the user may wear the general insole 10 of a flat plate shape made of an elastic body on the formed customized heel cup 11.

On the other hand, it may be inconvenient to use an elastic plate when forming the pre-heel cup 11 or the pre-insole 10 according to the present invention. Therefore, the lower surface of the pre-heel cup 11 according to the present invention or the lower surface of the pre-heel cup 11 bonded to the pre-insole 10 may further have a second cushion layer portion having a high porosity and thus a high compression ratio (Not shown). The second cushion layer part functions as an elastic plate at the time of molding and functions to fill the arch space of the user's sole. It is preferable that the second cushion layer portion is formed with a large or fine through-hole so that water can pass therethrough and approach the pre-heel cup 11. [

10. Insole or pre-insole
11. Hill or pre-heel
12. Cushion layer 12a. Cushioning material layer 12b. Cover layer

Claims

A pre-heel cup (11) for a customized insole (10), characterized in that it comprises a support sheet made of paper, sponge, nonwoven fabric or knitted fabric and a hydraulically hardened resin impregnated or coated on said support sheet.

A cushion layer 12,
A pre-insole (10) custom-made comprising a pre-heel cup (11) according to claim 1 bonded to a lower surface of the cushion layer part (12).

3. The method of claim 2,
The pre-insole (10) according to any one of the preceding claims, wherein the pre-heel cup (11) is bonded to the entire lower surface of the cushion layer part (12) and the thickness gradually decreases from the heel side toward the toe side.

The method according to claim 2 or 3,
A pre-insole (10) as claimed in any one of the preceding claims, characterized in that a second cushion layer portion is additionally attached to the underside of the pre-heel cup (11).

(A) supplying water to a pre-heel cup (11) for customized insole (10) according to claim 1, or to a custom pre-insole (10) according to claim 2 or 3; And
(B) placing the pre-heel cup (11) or pre-insole (10) on an elastic plate and allowing the user to stand on the top or lay the pre-heel cup (11) or pre- Standing with a shoe and holding it for a predetermined time;
Wherein the method comprises the steps of:

(A) supplying water to a customized pre-insole (10) according to claim 4; And
(B) placing the pre-insole (10) on the floor and the user standing on it, or laying the pre-insole (10) on the shoe,
Wherein the method comprises the steps of: