KR20060030076A - Making method of a spring inserted air chamber - Google Patents

Making method of a spring inserted air chamber Download PDF

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Publication number
KR20060030076A
KR20060030076A KR1020060015741A KR20060015741A KR20060030076A KR 20060030076 A KR20060030076 A KR 20060030076A KR 1020060015741 A KR1020060015741 A KR 1020060015741A KR 20060015741 A KR20060015741 A KR 20060015741A KR 20060030076 A KR20060030076 A KR 20060030076A
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KR
South Korea
Prior art keywords
spring
air chamber
mold
synthetic resin
manufacturing
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KR1020060015741A
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Korean (ko)
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배찬기
김옥선
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배찬기
김옥선
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Priority to KR1020060015741A priority Critical patent/KR20060030076A/en
Publication of KR20060030076A publication Critical patent/KR20060030076A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/60—Loosening articles in piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
    • B65H2301/42322—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from bottom of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/50—Machine elements
    • B65H2402/51—Joints, e.g. riveted or magnetic joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/52—Translation screw-thread mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B65H2403/941—Manually powered handling device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/063—Rollers or like rotary separators separating from the bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0684—Rollers or like rotary separators on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile

Abstract

본 발명은 에어챔버(=에어백) 내부에 스프링을 내입하여 성형할 수 있는 방법을 제공하여 에어챔버와 스프링의 2중 쿳션작용 및 1차 에어챔버, 2차 스프링의 합친 복원력으로 인해 신발의 아웃솔 등으로 사용 시 편안함과 월등한 피로 감소효과, 그리고 스프링의 칼라화로 인한 고급형의 에어챔버를 제공할 수 있는 등 다수의 효과를 얻을 수 있도록 한 스프링 내입형 에어챔버의 제조방법을 제공코자 하는 것이다.The present invention provides a method that can be molded by injecting the spring into the air chamber (= air bag) to provide a double cushion action of the air chamber and the spring and the primary air chamber, the combined resilience of the secondary spring shoe, etc. In order to provide a method of manufacturing a spring-loaded air chamber that can achieve a number of effects, such as comfort and excellent fatigue reduction effect, and to provide a high-grade air chamber due to the color of the spring.

즉, 본 발명은 스프링(5)이 내입되는 에어챔버(1)를 제조하되, 에어챔버(1) 성형용 합성수지제 필름(2a,2b)을 1차 금형(3) 상간에 개재시키고, 상기 합성수지제 필름(2a,2b) 상간에 지그(4)를 사용하여 스프링(5)을 합성수지제 필름(2a,2b) 상간에서 1차로 클램핑 한 상태로 질소가스를 주입하며 형 폐쇄하여 스프링(5)을 합성수지제 필름(2a,2b) 상간에 열압착고정부(6)에 의해 고정시키는 단계와, 상기 1차 금형(3) 형 개방 후 지그(4)를 분리하고, 2차 금형(7)을 형 개방 상태에서 열압착고정부(6)에 의해 스프링(5)이 고정된 합성수지제 필름(2a,2b)을 투입하여 2차 금형(7)을 형 폐쇄하여 합성수지제 필름(2a,2b)의 외단부를 열압착 고정시켜 열압착고정부(6a)에 의해 에어챔버(1)를 형성하는 것을 특징으로 하는 바,That is, the present invention manufactures the air chamber 1 into which the spring 5 is inserted, but interposes the film 2a, 2b made of synthetic resin for forming the air chamber 1 between the primary mold 3, and the synthetic resin The spring 5 is injected into the state of clamping the spring 5 using the jig 4 between the films 2a and 2b, and the mold is closed by first injecting nitrogen gas in the state of clamping the phase between the films 2a and 2b. The step of fixing by the thermocompression fixing part 6 between the phases of the synthetic resin film (2a, 2b), and the jig (4) after the mold opening of the primary mold (3) is separated, the secondary mold (7) In the open state, the resin film 2a, 2b having the spring 5 fixed by the thermocompression fixing part 6 is put therein, and the secondary mold 7 is mold-closed to close the resin film 2a, 2b. It is characterized in that the air chamber 1 is formed by the thermocompression fixing part 6a by thermocompression fixing the end.

이러한 본 발명의 제조방법은 신발의 아웃솔 및 특수 쿳션을 필요로 하는 다양한 산업분야에서 사용되는 에어챔버(1) 내부에 스프링(5)을 원하는 부위에 내입상태로 성형할 수 있도록 함으로써, 쿳션력이 배가된 에어챔버(1)를 제공할 수 있 고, 신발의 아웃솔 등으로 사용할 시에 스프링(5)이 내입된 에어챔버(1)가 외부로 노출이 되도록 장착, 사용 할 경우 피로도를 감소시키고, 건강추구에 일익을 하며, 착용 시 편안함을 제공한다. 그리고 스프링의 칼라화로 인한 고급형의 에어챔버를 제공하여 제품의 고급화 및 판매률 신장에도 크게 일조할 수 있는 것이다.Such a manufacturing method of the present invention by forming the spring (5) in the desired position in the desired position in the air chamber (1) used in various industries requiring an outsole and a special cushion of the shoe, the cushion force is It can provide a doubled air chamber (1), and when used as an outsole of shoes, such that the air chamber (1) in which the spring (5) is embedded is exposed to the outside, reducing fatigue when used, It contributes to the pursuit of health and provides comfort when worn. In addition, by providing a high-quality air chamber due to the spring color of the spring can greatly contribute to the high-quality products and increase the sales rate.

스프링 내입형 에어챔버의 제조방법, 에어챔버, 스프링, 열압착고정부, 지그, 1차 금형, 2차 금형 Manufacturing method of spring-loaded air chamber, air chamber, spring, thermocompression fixing part, jig, primary mold, secondary mold

Description

스프링 내입형 에어챔버의 제조방법{Making method of a spring inserted air chamber}Manufacturing method of a spring inserted air chamber

도 1은 본 발명에서 제공하는 스프링 내입형 에어챔버의 제조방법의 바람직1 is a preferred method of manufacturing a spring-loaded air chamber provided by the present invention

한 일실시예를 보인 공정도Process diagram showing one embodiment

도 2는 본 발명에서 제공하는 스프링 내입형 에어챔버를 제조하기 위한 1차 Figure 2 is a primary for manufacturing a spring-loaded air chamber provided by the present invention

금형의 발췌 사시도Excerpt perspective of mold

도 3은 본 발명에서 제공하는 제조방법에 의해 제조된 스프링 내입형 에어챔Figure 3 is a spring-loaded air chamber manufactured by the manufacturing method provided by the present invention

버를 보인 사시도Perspective view of burr

■ 도면의 주요부분에 사용된 부호의 설명 ■■ Explanation of symbols used in main part of drawing ■

1: (스프링 내입형)에어챔버 2a,2b: 합성수지제 필름1: (Internal spring type) Air chamber 2a, 2b: Synthetic resin film

3: 1차 금형 4: 지그3: primary mold 4: jig

5: 스프링 6,6a: 열압착고정부5: spring 6,6a: thermocompression fixing part

7: 2차 금형7: secondary mold

본 발명은 스프링 내입형 에어챔버(air chamber, 또는 '에어백'이라 호칭 됨)의 제조방법에 관한 것으로서, 더욱 상세히는 에어챔버 내부에 스프링(예를 들어 '이중 접합 특수 스프링' 등)을 내입하여 성형할 수 있는 방법을 제공하여 에어챔버와 스프링의 2중 쿳션작용 및 1차 에어챔버, 2차 스프링의 합친 복원력으로 인해 신발의 아웃솔 등으로 사용 시 편안함과 월등한 피로 감소효과, 그리고 스프링의 칼라화로 인한 고급형의 에어챔버를 제공할 수 있는 등 다수의 효과를 득할 수 있도록 한 스프링 내입형 에어챔버의 제조방법을 제공코자 하는 것이다.The present invention relates to a method for manufacturing a spring-integrated air chamber (called an 'air bag'), and more particularly, by inserting a spring (for example, a 'double junction special spring', etc.) into the air chamber. Provides a method of forming, so that the double cushion action of the air chamber and the spring and the combined restoring force of the primary air chamber and the secondary spring make the shoe outsole and comfortable, and the fatigue reduction effect and the spring collar The purpose of the present invention is to provide a method for manufacturing a spring-loaded air chamber, which can achieve a number of effects, such as providing a high-quality air chamber.

통상 신발의 아웃솔(out sole) 등에 사용되는 에어챔버와 스프링은 별도의 쿳션부재로 제작, 사용되고 있다.Air chambers and springs, which are usually used in the outsole of shoes, etc. are manufactured and used as a separate cushion member.

즉, 신발의 아웃솔 등에 사용되는 쿳션부재(cushion device)는 에어챔버 또는 스프링을 선택하여 사용하고 있으며, 에어챔버의 경우 스프링에 비하여 쿳션력이 부족하여 고탄성의 쿳션을 원하는 경우에는 스프링을 채택하게 된다.That is, the cushion device used for the outsole of the shoe is selected by using an air chamber or a spring, and the air chamber adopts a spring when a high elastic cushion is desired due to the lack of cushioning force as compared to the spring. .

그러나 스프링은 아웃솔 외부에서는 보이지 않도록 아웃솔 내부에 내입 설치되므로 이러한 스프링 사용 유무를 신발 완제품 상태에서는 사용자가 확인키 어려워 어떤 종류의 스프링을 사용한 것인지 의구심을 가질 수 밖에 없었고, 에어챔버는 아웃솔에 일부가 노출되게 제작한 신발이 많으나, 역시 쿳션력은 스프링에 비하여 떨어지므로 이를 혼용시킨 스프링 내장형 에어챔버의 개발이 절실했으나, 기존의 에어챔버 성형 기술로는 스프링을 에어챔버 내부에 위치설정시킨 후 에어챔버를 성형할 수 있는 제조방법이 부재하여 이러한 에어챔버의 제조방법 개발이 절실히 요망되어 왔던 것이다.However, since the spring is installed inside the outsole so that it cannot be seen from the outside of the outsole, it is difficult for the user to check whether the spring is used or not, so the user has to wonder what kind of spring is used. The air chamber is partially exposed to the outsole. Many shoes are manufactured, but the cushioning force is lower than that of the spring, so the development of a spring-embedded air chamber that is mixed is urgently needed.However, conventional air chamber molding technology places the air chamber after positioning the spring inside the air chamber. Since there is no manufacturing method that can be molded, development of a manufacturing method of such an air chamber has been urgently desired.

이에 본 발명에서는 상기한 바와 같이 신발의 아웃솔 등과 같이 다양한 분야에서 사용되고 있는 에어챔버와 스프링을 일체로 한 쿳션부재를 제조할 수 있는 방법을 제공코자 하는 것으로서,In the present invention to provide a method for manufacturing a cushion member integral with the spring and the air chamber used in various fields, such as the outsole of the shoe as described above,

본 발명은 특히 에어챔버 내부에 스프링이 정위치 내입 고정되도록 한 제조방법을 제공하기 위하여 1차 금형에 의해 합성수지제 필름 상간에 스프링을 먼저 위치고정시킨 후 2차 금형에 의해 에어챔버를 형성토록 함으로써, 스프링이 내입된 에어챔버를 제조 가능토록 한 스프링 내입형 에어챔버의 제조방법을 제공함에 발명의 기술적 과제를 두고 본 발명을 완성한 것이다.In order to provide a manufacturing method in which the spring is fixed in-situ inside the air chamber, the present invention is to first fix the spring between the synthetic resin film phases by the primary mold and then form the air chamber by the secondary mold. The present invention has been completed in view of the technical problem of the present invention by providing a method for manufacturing a spring-loaded air chamber in which a spring-loaded air chamber can be manufactured.

도 1은 본 발명에서 제공하는 스프링 내입형 에어챔버(일반 호스 타입의 고주파용이 아닌 부로아 타입의 에어챔버)의 제조방법을 설명하기 위한 단면도, 도 2는 본 발명의 제조방법에 사용되는 도 3은 본 발명의 제조방법에 의해 제조된 스프링 내입형 에어챔버(1)의 사시도 등으로서, 이들 도면과 함께 본 발명을 상세히 설명하면 다음과 같다.1 is a cross-sectional view for explaining a method for manufacturing a spring-loaded type air chamber provided in the present invention (a non-high frequency air chamber of a general hose type), and FIG. 2 is used in the manufacturing method of the present invention. Is a perspective view and the like of a spring-loaded air chamber 1 manufactured by the manufacturing method of the present invention. The present invention will be described in detail with these drawings as follows.

즉, 본 발명의 스프링 내입형 에어챔버(1)의 제조방법은 우선 에어챔버(1)를 성형하기 위한 복수의 합성수지제 필름(2a,2b)을 1차 금형(3) 상간에 개재시키고, 상기 합성수지제 필름(2a,2b) 상간에는 별도의 지그(4)를 사용하여 스프링(5)을 합성수지제 필름(2a,2b) 상간에서 1차로 정위치 고정될 수 있도록 클램핑(또는 안치) 상태로 잡아주게 된다.That is, in the method for manufacturing the spring-loaded air chamber 1 of the present invention, first, a plurality of synthetic resin films 2a and 2b for forming the air chamber 1 are interposed between the primary mold 3 and the above. A separate jig 4 is used between the synthetic film 2a and 2b phases to hold the spring 5 in a clamped (or settled) state so that the spring 5 can be fixed in the primary position between the synthetic film 2a and 2b phases. Given.

상기 1차 금형(3)은 형 개방 상태에서 1차 형 폐쇄되면서 질소가스를 주입하며 합성수지제 필름(2a,2b)을 열압착 고정시키되, 이때 1차 금형(3)은 스프링(5)만 합성수지제 필름(2a,2b) 상간에 열압착고정부(6)에 의해 고정시키게 된다. 이러한 열압착고정부(6)로 스프링(5)을 합성수지제 필름(2a,2b) 상간에 고정할 수 있는 1차 금형(3)의 일 실시예가 도 2에 개시되어 있지만, 이의 형상은 적절히 변경할 수 있음은 물론이다.The primary mold (3) injects nitrogen gas while the primary mold is closed in the mold opening state and thermocompression-fixing the synthetic resin film (2a, 2b), wherein the primary mold (3) is only the spring (5) synthetic resin It is fixed by the thermocompression fixing part 6 between the film 2a, 2b phases. Although an embodiment of the primary mold 3 capable of fixing the spring 5 between the synthetic resin films 2a and 2b with the thermocompression fixing part 6 is shown in FIG. 2, the shape thereof is appropriately changed. Of course it can.

그리고 스프링(5)을 잡아주고 있던 지그(4)를 분리한 후 차기로 2차 금형(7)을 형 개방 상태에서 열압착고정부(6)에 의해 스프링(5)이 고정된 합성수지제 필름(2a,2b)을 투입한 후 2차 금형(7)을 형 폐쇄하면 합성수지제 필름(2a,2b)의 외단부를 열압착 고정시켜 열압착고정부(6a)에 의해 에어챔버(1)를 형성하게 된다.Then, after removing the jig 4 holding the spring 5, the synthetic resin film in which the spring 5 is fixed by the thermocompression fixing part 6 in the state of opening the secondary mold 7 with the next step ( When the secondary mold 7 is closed after the 2a and 2b are introduced, the air chamber 1 is formed by the thermocompression fixing part 6a by thermocompression-fixing the outer ends of the synthetic resin films 2a and 2b. Done.

즉, 본 발명은 1차 금형(3)에 의해 합성수지제 필름(2a,2b) 상간에 스프링(5)을 먼저 위치고정시킨 후 2차 금형(7)에 의해 에어챔버(1)를 형성토록 함으로써, 스프링이 내입된 에어챔버(1)를 제조할 수 있는 것이다.That is, according to the present invention, the spring 5 is first fixed between the synthetic resin films 2a and 2b by the primary mold 3 and then the air chamber 1 is formed by the secondary mold 7. , Spring can be manufactured in the air chamber (1).

도면중의 부호 8은 2차 금형(7)상에 형성되는 에어주입공을 도시한 것이다.Reference numeral 8 in the figure shows an air injection hole formed on the secondary mold 7.

상기한 바와 같은 제조공정에 의해 본 발명에서는 스프링 내입형 에어챔버 (1)를 제조 가능토록 하는 바,In the present invention by the manufacturing process as described above to enable the production of the spring-loaded air chamber (1),

본 발명은 각종 신발의 아웃솔 등 다양한 산업분야에서 사용되는 에어챔버 내부에 스프링(5)을 원하는 부위에 내입상태로 성형할 수 있어 쿳션력이 배가된 에어챔버(1)를 제공할 수 있으며, 신발의 아웃솔 등으로 사용할 시에 에어챔버(1)가 외부로 노출이 되도록 성형할 수 있으며, 에어챔버 내부에 설치된 스프링도 눈으로 확인할 수 있어 제품의 고급화 및 판매률 신장에도 크게 일조할 수 있는 것이다.The present invention can provide the air chamber (1) with double cushioning force by molding the spring (5) in the desired position in the desired portion inside the air chamber used in various industries, such as the outsole of various shoes, shoes When used as an outsole of the air chamber (1) can be molded to be exposed to the outside, and the spring installed inside the air chamber can also be visually confirmed, which can greatly contribute to the high-quality product and sales rate increase.

이상에서 상세히 살펴 본 바와 같이 본 발명에서 제공하는 스프링 내입형 에어챔버의 제조방법은 신발의 아웃솔 및 특수 쿳션을 필요로 하는 다양한 산업분야에서 사용되는 에어챔버(1) 내부에 스프링(5)을 원하는 부위에 내입상태로 성형할 수 있도록 함으로써, 쿳션력이 배가된 에어챔버(1)를 제공할 수 있고, 신발의 아웃솔 등으로 사용할 시에 스프링(5)이 내입된 에어챔버(1)가 외부로 노출이 되도록 장착, 사용 할 경우 피로도를 감소시키고, 건강추구에 일익을 하며, 착용 시 편안함을 제공할 수 있다.As described in detail above, the method for manufacturing a spring-loaded air chamber provided by the present invention requires a spring 5 inside an air chamber 1 used in various industrial fields requiring an outsole of shoes and a special cushion. By allowing the mold to be molded in an indented state, it is possible to provide an air chamber 1 with a double cushioning force, and when used as an outsole of a shoe, the air chamber 1 into which the spring 5 is embedded is moved outward. When installed and used for exposure, it can reduce fatigue, help health pursuit, and provide comfort when worn.

그리고 스프링의 칼라화로 인한 고급형의 에어챔버를 제공하여 제품의 고급화 및 판매률 신장에도 크게 일조할 수 있는 등 그 기대되는 효과가 다대한 발명이다.In addition, by providing a high-grade air chamber by the color of the spring can greatly contribute to the high-quality product and increase the sales rate, the expected effect is a great invention.

Claims (1)

스프링(5)이 내입되는 에어챔버(1)를 제조함에 있어서;In manufacturing the air chamber 1 into which the spring 5 is incorporated; 에어챔버(1) 성형용 합성수지제 필름(2a,2b)을 1차 금형(3) 상간에 개재시키고, 상기 합성수지제 필름(2a,2b) 상간에 지그(4)를 사용하여 스프링(5)을 합성수지제 필름(2a,2b) 상간에서 1차로 클램핑 한 상태로 질소가스를 주입시키며 형 폐쇄하여 스프링(5)을 합성수지제 필름(2a,2b) 상간에 열압착고정부(6)에 의해 고정시키는 단계와,The resin film 2a, 2b for molding the air chamber 1 is interposed between the primary mold 3 phases, and the spring 5 is used by the jig 4 between the synthetic resin film 2a, 2b phases. Nitrogen gas is injected in the state clamped primarily between the phases of the synthetic resin films 2a and 2b, and the mold is closed to fix the spring 5 to the phases of the synthetic resin films 2a and 2b by the thermocompression fixing unit 6. Steps, 상기 1차 금형(3) 형 개방 후 지그(4)를 분리하고, 2차 금형(7)을 형 개방 상태에서 열압착고정부(6)에 의해 스프링(5)이 고정된 합성수지제 필름(2a,2b)을 투입하여 2차 금형(7)을 형 폐쇄하여 합성수지제 필름(2a,2b)의 외단부를 열압착 고정시켜 열압착고정부(6a)에 의해 에어챔버(1)를 형성하는 것을 특징으로 하는 스프링 내입형 에어챔버의 제조방법.After the primary mold 3 is opened, the jig 4 is separated, and the secondary mold 7 is made of a synthetic resin film 2a having the spring 5 fixed by the thermocompression fixing part 6 in the mold open state. 2b) to close the secondary mold 7 to thermo-compress and fix the outer ends of the synthetic resin films 2a and 2b to form the air chamber 1 by the thermocompression fixing unit 6a. Method of manufacturing a spring-loaded air chamber characterized in that.
KR1020060015741A 2006-02-17 2006-02-17 Making method of a spring inserted air chamber KR20060030076A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101230501B1 (en) * 2012-06-07 2013-02-06 김성현 Insole of shoes
KR101890340B1 (en) * 2017-06-26 2018-08-22 김성현 Insole of shoes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101230501B1 (en) * 2012-06-07 2013-02-06 김성현 Insole of shoes
KR101890340B1 (en) * 2017-06-26 2018-08-22 김성현 Insole of shoes

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