KR101291847B1 - Safety boot's Midsole as inserted a Penetration-Resistant and its Mamufacturing Process - Google Patents

Safety boot's Midsole as inserted a Penetration-Resistant and its Mamufacturing Process Download PDF

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KR101291847B1
KR101291847B1 KR1020110084648A KR20110084648A KR101291847B1 KR 101291847 B1 KR101291847 B1 KR 101291847B1 KR 1020110084648 A KR1020110084648 A KR 1020110084648A KR 20110084648 A KR20110084648 A KR 20110084648A KR 101291847 B1 KR101291847 B1 KR 101291847B1
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South Korea
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foam
mold
midsole
plate
safety
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KR1020110084648A
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Korean (ko)
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KR20130022016A (en
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서용식
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한스산업 주식회사
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • A43B13/125—Soles with several layers of different materials characterised by the midsole or middle layer
    • A43B13/127—Soles with several layers of different materials characterised by the midsole or middle layer the midsole being multilayer
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/04—Plastics, rubber or vulcanised fibre
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/24—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/06—Making multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/122—Soles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

본 발명은 디딤판이 장입된 안전화 중창 및 이의 제조방법에 관한 것으로, 보다 상세하게는 방탄 소재인 디딤판(일명 내답판)을 중창의 중심부에 장입(inserting)후 이중 구조의 PU 폼으로 폴링하여 구성한 안전화 중창에 관한 것이다.The present invention relates to a safety shoe midsole loaded with a tread plate and a manufacturing method thereof, and more particularly, a safety shoe configured by polling with a PU foam having a double structure after inserting a stepper plate (also called inner plate), which is a bulletproof material, in the center of the midsole. It's about the midsole.

이의 발명 요지는 안전화의 중창을 제조하는 제1 금형의 중심부에 디딤판을 장입후, 저비중 연질 PU 폼을 상기 디딤판의 주위에 주입 후 열 컨베이어를 통과시켜 디딤판(50)과 저 비중 연질 PU 폼(60)을 일체형으로 만든 다음, 상기 디딤판(50)이 장입된 저 비중 연질 PU 폼(60)을 다시 제2 금형의 상, 하부 금형(3,4)의 고정핀 (7)사이에 고정 장착한 후 인열 및 가수분해에 강한 고경도 PU 폼을 제2 금형의 상, 하부 금형(3,4)사이에 주입한 다음 열 컨베이어를 통과시킴으로서 디딤판이 장입된 저비중 연질 PU 폼과 고경도 PU 폼을 일체형 구조로 한 안전화의 이중성 PU 폼 중창에 관한 것으로, 이는 종래에 비하여 가볍고 발을 보호 할 뿐만 아니라 충격을 흡수하고 분산시키는 특징이 있다.Summary of the Invention The present invention provides a stepping plate in the center of a first mold for manufacturing a safety sole and injecting a low specific gravity soft PU foam around the stepping plate through a heat conveyor to allow a stepping plate 50 and a low specific gravity soft PU foam ( 60) and then fixedly mounted between the fixing pins 7 of the upper and lower molds 3 and 4 of the second mold and the low specific gravity soft PU foam 60 into which the tread plate 50 is loaded. After the high hardness PU foam resistant to tearing and hydrolysis is injected between the upper and lower molds (3,4) of the second mold, and then passed through a heat conveyor, the low specific gravity soft PU foam and the high hardness PU foam loaded with tread plates It is related to the safety double shoe PU foam midsole in one-piece structure, which is lighter than conventional and protects the foot as well as absorbs and distributes the impact.

디딤판이 장입된 안전화 중창, 디딤판, 저비중 연질 PU 폼, 고경도 PU 폼Safety midsole with tread plate, tread plate, low specific gravity soft PU foam, high hardness PU foam

Description

디딤판이 장입된 안전화 중창 및 이의 제조방법 {Safety boot's Midsole as inserted a Penetration-Resistant and its Mamufacturing Process }Safety boot's midsole as inserted a Penetration-Resistant and its Mamufacturing Process}

본 발명은 방탄소재인 디딤판(일명 내답판)을 내면 중심부에 장입(insert)하고 이의 외부를 성질이 다른 PU 폼을 이중으로 구성한 중창으로서, 이는 발을 보호하고 또한 착화시 충격 흡수 및 마찰을 골고루 분산시키는 디딤판이 장입된 안전화 중창 및 이의 제조방법에 관한 것이다.The present invention is a midsole composed of a PU foam having different properties in the inner surface of a stepping plate (also called inner plate), which is a bulletproof material, which protects the foot and evenly absorbs shock and friction during ignition. It relates to a safety shoes midsole loaded with a dispersing tread and a method for manufacturing the same.

기존의 안전화는 금속판을 삽입한 디딤판(일명 내답판)을 중창위에 본드를 사용하여 부착하는데, 이것은 디딤판이 이탈하기 쉬울 뿐만 아니라 디딤판이 미끄러워 안전화 착화시 중창과 디딤판이 고정되지 못하고 서로 마찰되어 내부 온도를 상승시켜 발의 피로감이 빨리 오며 아울러 딱딱한 디딤판 위에 깔창을 넣고 착화함으로써 충격흡수 또는 유연성이 떨어져 무릎 관절에 충격을 주게되어 건강에 해를 끼치는 등의 단점이 있었다.Conventional safety shoes attach a tread plate (aka inner plate) with a metal plate on the midsole using a bond, which not only makes the tread easy to detach but also makes the slippery slippery, which prevents the midsole and the tread from being fixed and rubs against each other. By raising the temperature, the fatigue of the foot comes quickly, and the insole is put on a hard tread and ignited, so that shock absorption or flexibility is impaired and the knee joint is impacted, which is harmful to health.

본 발명은 디딤판이 장입된 안전화 중창 및 이의 제조방법에 관한 것이다.The present invention relates to a safety shoe midsole loaded with a tread and a method for manufacturing the same.

종래의 안전화용 중창 상면에 본드를 사용하여 금속판을 삽입한 디딤판(일명 내답판)을 부착함으로서 디딤판이 창에서 이탈하기 쉬우며 또한 디딤판의 상부에 깔창을 넣어 디딤판과 깔창의 마찰로 인해 내부 열을 발생시켜 발에 피로감이 빨리 오며 충격 흡수와 발의 유연성이 떨어지며 중량이 무거워 지는 등의 문제점이 있었다.By attaching a tread plate (also called inner plate) in which a metal plate is inserted by using a bond on the upper surface of a conventional safety shoe, the tread plate is easily detached from the window. There was a problem such that fatigue occurs quickly to the foot, shock absorption and foot flexibility is reduced and the weight is heavy.

본 발명은 상기의 문제점을 해결하고자 안출한 것으로서, 이의 발명 요지는 안전화의 중창(In Sole) 제조시, 제1 금형의 중심부에 디딤판을 장입후, 저비중 연질 PU 폼을 디딤판의 주위에 주입하여 디딤판과 연질 PU 폼을 일체형 구조로 하고, 이를 열 컨베이어를 통과시킴으로 디딤판이 장입된 연질 PU 폼으로 중창의 내면부를 만든 후, 이 내면부를 다시 제2 금형의 하부 금형(3)의 고정핀(7)에 고정시킨 후 인열 및 가수분해에 강한 고경도 PU 폼을 외부에 주입하여 열 컨베이어속을 통과시킴으로서 고경도 PU 폼으로 중창의 외면부를 형성한 것인 바, 이는 충격 흡수 및 충격을 분산시켜주는 안전화용의 이중구조로 된 PU 폼 중창을 제조함을 특징으로 한다.The present invention has been made to solve the above problems, the present invention is to manufacture a midsole (In Sole) of safety shoes, after inserting a stepping plate in the center of the first mold, by injecting a low specific gravity soft PU foam around the stepping plate The inner surface of the midsole is made of a soft PU foam loaded with a tread plate by passing the tread plate and the soft PU foam into an integral structure, and the fixing pin of the lower mold 3 of the second mold 3 After hardening and hydrolysis, high hardness PU foam is injected into the outside and passed through the heat conveyor to form the outer surface of the midsole with high hardness PU foam, which absorbs shock and disperses shock. It is characterized by manufacturing a PU foam midsole with a double structure for safety shoes.

본 발명은 종래의 금속판 대신에 방탄 소재가 장입된 디딤판으로서 작업공정이 간단하고 본드를 사용하지 않으며 디딤판을 중창의 중심부에 장입함으로써 미끄러움을 방지하고 외부 충격을 흡수 및 분산하며 아울러 자체 중량을 감소시킴으로써 원가를 절감하고 내구성이 양호하며 또한 발을 편안하게 하고 또한 외부의 위험한 물건으로 부터 발을 보호하는 특징이 있다.The present invention is a stepping board in which bulletproof material is loaded instead of a conventional metal plate, and a work process is simple, and a bond is not used, and a stepping board is placed in the center of the midsole to prevent slippage, absorb and disperse external shocks, and reduce its own weight. This reduces cost, improves durability, comforts the foot, and protects the foot from dangerous objects.

본 발명은 방탄소재인 디딤판(일명 내답판)과 이중구조의 PU 폼으로 구성된 안전화의 중창 및 이의 제조방법에 관한 것이다.The present invention relates to a midsole of safety shoes composed of a stepping plate (also called inner plate) and a double structure of PU foam, and a manufacturing method thereof.

이를 도면에 의거하여 상세히 설명하면 다음과 같다.This will be described in detail with reference to the drawings.

도1은 디딤판과 PU 폼을 일체형으로 구성한 1차 공정의 단면도이고,1 is a cross-sectional view of a first process in which the tread plate and the PU foam are integrally formed;

도2는 디딤판과 고경도 PU폼을 이중으로 결합한 2차 공정의 단면도이며,2 is a cross-sectional view of a secondary process in which a tread plate and a high hardness PU foam are double-bonded;

도3은 안전화용 중창의 사시도이다.3 is a perspective view of the midsole for safety shoes.

본 발명의 제조방법을 설명하면 다음과 같다.
안전화의 중창 제조의 1차 공정인 제1 금형(10)의 하부 금형(1)과 상부 금형(2)의 양측부에 각각 설치된 디딤판 고정핀(6)사이의 중심부에 방탄용 섬유 재질로 된 고강도 방탄 소재의 디딤판(50)을 고정 장착한 다음 상기의 하부 금형(1)의 상단면에 연질 PU 폼(60)을 주입 후 상기 제1 금형(10)의 하부 금형(1)과 상부 금형(2)을 밀접하게 결합함으로서 상기 PU 폼의 주재(主材)인 폴리 올과 PU 경화재인 이소시아 네이트가 혼합됨에 따라 40℃ 정도에서 발열 반응이 발생하게 되고 상기 디딤판(50)의 외부를 연질 PU 폼(60)으로 둘러 싼 상태로 한 다음, 이 제1 금형(10)을 열 컨베이어(70∼80℃)를 통과시킴으로서 디딤판(50)과 연질 PU 폼(60)을 일체형 구조로 한 안전화 중창(100)의 내면부(80)를 생성한다.＜1차 공정＞ 이어서 상기의 디딤판(50)이 장입된 연질 PU 폼(60)을 제2금형(20)의 하부금형(3)의 양측부에 설치된 고정핀(7)사이에 고정 장착시킨 후 상기 제2 금형(20)의 하부 금형(3)에 인열 및 가수분해에 강한 고경도 PU 폼(70)을 주입하여 상기한 1차 발열 반응과 동일하게 발열시킨 다음, 상부 금형(4)의 양측부에 설치된 고정핀(7)을 하방으로 내려서 상기 제2 금형(20)의 하부 금형(3)과 상부 금형(4)을 밀접하게 결합하여 디딤판(50)이 장입된 연질 PU 폼(60)외부를 상기의 제2 금형(20)의 하부 금형(3)에 주입된 고경도 PU 폼(70)으로 둘러 씌운 후 이 제2 금형(20)을 열 컨베이어(70∼80℃)속을 통과시킴으로서 상기한 연질 PU 폼(60)과 고경도 PU 폼(70)을 일체형 구조로 한 안전화 중창(100)의 외면부(90)를 구성한다. ＜2차 공정＞
이로서 성질이 다른 두 종류의 PU 폼으로 구성된 안전화용 중창(100)을 완성한다
본 발명의 안전화용 중창(Mid Sole)제조방법은 안전화의 밑창(Out Sole) 제조시에도 동일하게 적용 할 수 있다.Referring to the manufacturing method of the present invention.
High strength with ballistic fiber material at the center between the lower mold 1 of the first mold 10 and the tread plate fixing pins 6 provided on both sides of the upper mold 2, which are the first steps in the manufacturing of the midsole of safety shoes After fixing the stepping plate 50 of the bullet-proof material and injecting the soft PU foam 60 to the upper surface of the lower mold (1), the lower mold (1) and the upper mold (2) of the first mold (10) ) By closely coupling the polyol and the isocyanate of the PU curable material is generated exothermic reaction at about 40 ℃ and the outside of the stepping plate 50 soft PU foam The first shoe 10 is passed through a heat conveyor (70 to 80 ° C.), and then the safety shoe midsole 100 having the integral structure of the tread plate 50 and the soft PU foam 60 is formed in the enclosed state with the heat sink (60). <1st process> Next, the flexible PU foam 60 in which the tread plate 50 is loaded is formed into a second mold ( High rigidity PU foam 70 resistant to tearing and hydrolysis of the lower mold 3 of the second mold 20 after being fixedly mounted between the fixing pins 7 installed on both sides of the lower mold 3 of 20). ) To generate heat in the same manner as the above-described first exothermic reaction, and then lower the fixing pins 7 provided on both sides of the upper mold 4 to the lower mold 3 of the second mold 20. The upper mold 4 is tightly coupled to the high hardness PU foam 70 injected into the lower mold 3 of the second mold 20 to the outside of the soft PU foam 60 in which the tread plate 50 is inserted. After enclosing the second mold 20 through a heat conveyor (70 to 80 ° C.), the safety sole midsole 100 having the above-described soft PU foam 60 and the high hardness PU foam 70 as an integrated structure is provided. The outer surface portion 90 is constituted. <Secondary process>
This completes the safety shoes midsole 100 consisting of two kinds of PU foams having different properties.
The midsole manufacturing method of the present invention can be equally applicable to the manufacturing of the outsole of the safety shoes.

본 발명은 디딤판이 장입된 안전화 중창 및 이의 제조방법에 관한 것으로, 이의 실시 특징은 다음과 같다.
상기 디딤판(50)은 접착용 본드를 일체 사용하지 않고 제조되어 상기 디딤판(50)이 창속에서 이탈되는 경우가 전혀 없다. 그리고 발바닥이 닿는 부위는 저비중의 연질 PU 폼이므로 충격흡수와 유연성을 향상시키는 바, 이는 마치 물위에 널빤지를 놓고 걷는 것과 같은 효과이다. 또한 충격흡수 및 마찰력을 분산 시키는 특징이 있으며, 디딤판이 창속에 장입되어 노출되지 않으므로서 내구성을 증대시키며, 특히 종래의 안전화보다 중량을 감소시킨다. 그리고 본 안전화의 외벽면은 고경도 PU 폼을 사용하고, 내벽면은 저비중 PU 폼을 사용 하므로서, 종래의 안전화 창보다 본 발명의 저비중, 고경도로 구성된 이중 PU 창이 훨씬 경제적이고 실용적인 특징이 있다The present invention relates to a safety shoe midsole loaded with a tread plate and a method for manufacturing the same.
The tread plate 50 is manufactured without using any bonding bond so that the tread plate 50 is not detached from the window at all. And the area where the sole touches the foot is a low-weight soft PU foam, which improves shock absorption and flexibility, which is like walking a board on the water. In addition, it has a feature of dispersing the shock absorption and friction, and the stepping board is loaded into the window is not exposed to increase the durability, in particular to reduce the weight than conventional safety shoes. In addition, since the outer wall of the safety shoes uses a high hardness PU foam, and the inner wall uses a low specific gravity PU foam, a double PU window composed of the low specific gravity and high hardness of the present invention is much more economical and practical than the conventional safety shoes.

도1은 제1 금형에 디딤판과 PU 폼을 일체형으로 한 1차 공정 단면도.1 is a cross-sectional view of a first step in which a stepping plate and a PU foam are integrally formed in a first mold.

도2는 제2금형에 디딤판과 고경도 PU 폼을 이중으로 결합한 2차 공정의 단면도.2 is a cross-sectional view of a secondary process in which a tread plate and a high hardness PU foam are double bonded to a second mold.

도3은 안전화 중창의 사시도3 is a perspective view of a safety shoe midsole;

※도면의 주요부분에 대한 부호의 설명※ Explanation of symbols for main parts of drawing

10 - 제1 금형 1 - 하부 금형 2 - 상부 금형10-First mold 1-Lower mold 2-Upper mold

20 - 제2 금형 3 - 하부 금형 4 - 상부 금형20-Second mold 3-Lower mold 4-Upper mold

6 , 7 - 고정핀 50 -디딤판6, 7-pin 50-tread

60 - 연질 PU 폼 70 - 고경도 PU 폼
80 - 내면부 90 - 외면부60-Soft PU Foam 70-Hard PU Foam
80-inner side 90-outer side

100 - 안전화 중창100-Safety Shoes Midsole

Claims (2)

삭제delete 안전화의 중창 제조용 제1 금형(10)의 하부 금형(1)과 상부 금형(2)의 양측부에 각각 설치된 디딤판 고정핀(6)사이의 중심부에 방탄용 섬유 재질로 된 고강도의 디딤판(50)을 고정 장착한 다음 상기의 하부 금형(1)의 상단면에 연질 PU 폼(60)을 주입 후 상기 제1 금형(10)의 하부 금형(1)과 상부 금형(2)을 밀접하게 결합한 후 상기 디딤판(50)을 연질 PU 폼(60)으로 둘러 씌운 다음, 이 제1 금형(10)을 열 컨베이어(70∼80℃)를 통과시킴으로서 디딤판(50)과 연질 PU 폼(60)을 일체형 구조로 한 안전화 중창(100)의 내면부(80)를 생성하고＜1차 공정＞, 이어서 상기의 디딤판(50)이 장입된 연질 PU 폼(60)을 제2금형(20)의 하부금형(3)의 양측부에 설치된 고정핀(7)사이에 고정 장착시킨 후 상기 제2 금형(20)의 하부 금형(3)에 고경도 PU 폼(70)을 주입한 다음, 상기 제2 금형(20)의 하부 금형(3)과 상부 금형(4)을 밀접하게 결합하여 디딤판(50)이 장입된 연질 PU 폼(60)외부를 상기 주입된 고경도 PU 폼(70)으로 둘러 씌운 후 이 제2 금형(20)을 열 컨베이어(70∼80℃)속을 통과시킴으로서 상기한 연질 PU 폼(60)과 고경도 PU 폼(70)을 일체형 구조로 한 안전화 중창(100)의 외면부(90)를 구성함＜2차 고정＞을 특징으로 하는 디딤판이 장입된 안전화 중창의 제조방법.High-strength stepping board (50) made of bulletproof fiber material at the center between the lower mold (1) of the first mold (10) for manufacturing midsole of safety shoes and the stepping plate fixing pin (6) respectively provided on both sides of the upper mold (2). After fixed mounting and injecting the soft PU foam 60 to the upper surface of the lower mold (1) and then closely coupling the lower mold (1) and the upper mold (2) of the first mold (10) The tread plate 50 is surrounded by a soft PU foam 60, and then the first mold 10 is passed through a heat conveyor (70 to 80 ° C.) so that the tread plate 50 and the soft PU foam 60 are integrally formed. The inner surface portion 80 of the safety sole midsole 100 is produced and then the first mold is formed, and then the soft PU foam 60 in which the tread plate 50 is loaded is placed in the lower mold 3 of the second mold 20. After fixedly mounted between the fixing pins 7 installed on both sides of the second mold 20, the high hardness PU foam 70 is injected into the lower mold 3 of the second mold 20, and then Lower mold (3) and the upper mold (4) is closely coupled to cover the outside of the flexible PU foam 60, the stepping plate 50 is charged with the injected high-hardness PU foam 70, the second mold 20 By passing through the heat conveyor (70 ~ 80 ℃) constitutes the outer surface portion 90 of the safety sole midsole 100 having the soft PU foam 60 and the high hardness PU foam 70 as an integral structure <2 A method of manufacturing a safety shoes midsole in which a tread is loaded.
KR1020110084648A 2011-08-23 2011-08-23 Safety boot's Midsole as inserted a Penetration-Resistant and its Mamufacturing Process KR101291847B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100229887B1 (en) 1995-03-01 1999-11-15 구이 앤드류 바즈 Brust and fragment resistant polyurethane boot sole for safety footwear
KR200355261Y1 (en) 2004-04-23 2004-07-05 (주)은혜인더스트리 slipper having a separative outsole

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100229887B1 (en) 1995-03-01 1999-11-15 구이 앤드류 바즈 Brust and fragment resistant polyurethane boot sole for safety footwear
KR200355261Y1 (en) 2004-04-23 2004-07-05 (주)은혜인더스트리 slipper having a separative outsole

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