KR20130022016A - Safety boot's insole as inserted a penetration-resistant - Google Patents

Safety boot's insole as inserted a penetration-resistant Download PDF

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KR20130022016A
KR20130022016A KR1020110084648A KR20110084648A KR20130022016A KR 20130022016 A KR20130022016 A KR 20130022016A KR 1020110084648 A KR1020110084648 A KR 1020110084648A KR 20110084648 A KR20110084648 A KR 20110084648A KR 20130022016 A KR20130022016 A KR 20130022016A
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South Korea
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mold
foam
lower mold
soft
stepping plate
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KR1020110084648A
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Korean (ko)
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KR101291847B1 (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

PURPOSE: A safety shoe sole with a stepping plate is provided to make feet comfortable and to protect the feet. CONSTITUTION: A safety shoe sole with a stepping plate comprises a step of fixing and mounting a stepping plate(50) made of a bulletproof fabric material between stepping plate fixing pins, a step of combining the lower mold and upper mold of a first mold after injecting soft polyurethane foam(60) into the upper surface of the lower mold and carrying out exothermic reaction, and a step of carrying out exothermic reaction by injecting hard polyurethane foam in the lower mold of a second mold.

Description

디딤판이 장입된 안전화 창 {Safety boot's Insole as inserted a Penetration-Resistant}Safety boot's Insole as inserted a Penetration-Resistant}

본 발명은 방탄소재인 디딤판(일명 내답판)을 장입(insert)하고 성질이 다른 PU 폼을 이중으로 결합하여 못이나 뾰족한 물건으로부터 발을 보호하고 또한 착화시 충격흡수 및 마찰을 골고루 분산시키는 안전화의 창에 관한 것이다.The present invention protects the foot from nails or sharp objects by inserting a stepping board (also called inner plate), which is a bulletproof material, and having different properties, and protects the foot from nails and sharp objects and distributes shock absorption and friction evenly during ignition. It's about a window.

기존의 안전화 제품은 디딤판을 깔창위에 본드를 사용하여 부착하는데, 이것은 디딤판이 이탈하기 쉬울 뿐만 아니라 디딤판이 미끄러워 안전화 착화시 창과 디딤판이 고정되지 못하고 서로 움직이면서 내부 온도를 상승시켜 발의 피로감이 빨리 오며 딱딱한 디딤판 위에 깔창을 넣고 착화함으로써 충격흡수 또는 유연성이 떨어져 무릎 관절에 충격을 줌으로서 건강에 해를 끼치는 등의 단점이 있었다.Existing safety shoes are attached to the insole by using a bond on the insole, which not only makes the tread easy to detach, but also makes the tread slippery, so that the window and the tread are not fixed when the shoes are ignited. By putting the insole on the treads and igniting, the shock absorbing or flexibility was reduced and the knee joints were impaired.

본 발명은 저비중 PU 폼에 디딤판을 장입하여 인열과 가수분해에 강한 일체형의 안전화 창에 관한 것이다.The present invention relates to a one-piece safety shoes window resistant to tearing and hydrolysis by loading a tread plate into a low specific gravity PU foam.

조래의 안전화용 창은 제조시 상면에 본드를 사용하여 디딤판을 부착함으로 서 잘못 작업 시 디딤판이 이탈하며 디딤판의 매끄러운 면 위에 깔창을 넣어 서로 움직이며 내부 열을 발생시켜 착화 시 피로감이 빨리 오며 딱딱한 디딤판 위에 깔창을 넣고 착화하므로 충격흡수와 유연성이 떨어지며 안전화 특성상 고경도 PU 폼을 사용함으로써 중량이 무거워지는 등의 문제점이 있었다.Sorae's safety shoes use a bond on the upper surface during manufacture, so that when the work is done wrong, the tread comes off and puts the insole on the smooth surface of the tread to move each other and generates internal heat. Since the insole is ignited on top, the shock absorption and flexibility are inferior, and the weight is heavy due to the use of high hardness PU foam due to the safety characteristics.

본 발명은 상기의 문제점을 해결하고자 안출한 것으로서, 이의 발명 요지는 창용 제1 금형의 중심부에 디딤판을 장입후, 저비중 연질 PU 폼을 디딤판의 주위에 주입하여 발열 반응을 시킴으로서 디딤판과 연질 PU 폼을 일체형으로 만든 다음, 이를 컨베이어 열을 통과시켜 생성된 디딤판이 장입된 연질 PU 폼을 다시 제2 금형의 하부 금형(3)의 고정핀 (7)에 고정시킨 후 인열 및 가수분해에 강한 고경도 PU 폼를 주입하여 발열반응을 시킴으로서 디딤판이 장입된 저비중 PU 폼과 고경도 PU 폼을 일체형을 만든 후 이를 열 컨베이어속을 통과시킴으로서 충격흡수 및 충격을 분산시켜주는 안전화용의 이중성 PU 폼 창을 제조함을 특징으로 한다.The present invention has been made to solve the above problems, the present invention is to insert a stepping plate in the center of the first mold for the window, and then a low-density soft PU foam is injected around the stepping plate to exothermic reaction to the stepping board and soft PU foam And solid PU foam loaded with a tread plate, which is produced by passing it through a conveyor row, is fixed to the fixing pins 7 of the lower mold 3 of the second mold, and then hardened against tearing and hydrolysis. By injecting PU foam to exothermic reaction, low density PU foam loaded with tread plate and high hardness PU foam are made in one piece, and then passed through the heat conveyor to produce dual PU foam window for safety shoes that absorbs shock and distributes shock. It is characterized by.

본 발명은 작업공정이 간단하고 본드를 사용하지 않으며 디딤판을 창의 중심부에 장입함으로써 미끄러움과 충격흡수를 방지하며 아울러 중량을 감소시킴으로써 원가 절감과 발을 편안하게 하고 또한 못이나 뾰족한 물건이 신발 바닥을 관통시에도 발을 보호할 수 있는 안전한 특징이 있다.According to the present invention, the work process is simple, no bond is used, and the stepping board is placed in the center of the window to prevent slippage and shock absorption, and the weight is reduced, thereby reducing the cost and making the foot comfortable, There is a safe feature to protect the feet even when penetrating.

본 발명은 방탄소재인 디딤판(일명 내답판)과 PU 폼을 이중으로 결합하여 못 이나 뾰족한 물건으로부터 발을 보호해주고, 착화시 충격흡수 및 마찰력을 분산시켜주는 안전화의 창에 관한 것이다.The present invention relates to a window of safety shoes that protects the foot from nails or sharp objects by double-binding the treadmill (aka inner-plate) and the PU foam, and disperses shock absorption and frictional forces when ignited.

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

도1은 디딤판과 PU 폼을 일체형으로 구성한 창의 단면도이고,1 is a cross-sectional view of a window integrally formed with a tread and a PU foam,

도2는 디딤판과 고경도 PU 폼을 이중으로 결합한 단면도이며,Figure 2 is a cross-sectional view of a double combination of the stepping board and high hardness PU foam,

도3은 안전화용 창의 사시도이다.3 is a perspective view of a safety shoe window;

제1 금형(10)의 하부 금형(1)과 상부 금형(2)의 양측부에 각각 설치된 디딤판 고정핀(6)사이에 방탄용 섬유 재질로 된 고강도의 디딤판(50)을 고정 장착한 다음 상기의 하부 금형(1)의 상단면에 연질 PU 폼(60)을 주입하여 발열 반응시킨 후, 상기 제1 금형(10)의 하부 금형(1)과 상부 금형(2)을 밀접하게 결합한 다음, 이 제1 금형(10)을 열 컨베이어(70～80℃)를 통과시킴으로서 디딤판(50)과 연질 PU 폼(60)을 일체형 구조로 생성한다. 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 하부금형(3)에 인열 및 가수분해에 강한 고경도 PU 폼(70)을 주입하여 발열 반응시킨 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 결합한 후 이 제2 금형(20)을 열 컨베이어속을 통과시킴으로서 상기 디딤판(50)이 장입된 연질 PU 폼(60)과 인열 및 가수분해에 강한 고경도 PU 폼(70)을 일체형으로 생성하여 성질이 다른 두 종류의 PU 폼으로 구성된 안전화용 창(100)을 완성한다Between the lower mold 1 of the first mold 10 and the stepping plate fixing pins 6 installed on both sides of the upper mold 2, respectively, the high-strength stepping plate 50 made of a bulletproof fiber material is fixed and mounted. After the exothermic reaction by injecting a soft PU foam (60) to the upper surface of the lower mold (1) of the lower mold (1) and the upper mold (2) of the first mold 10 is closely coupled, By passing the first mold 10 through a heat conveyor (70 to 80 ° C.), the tread plate 50 and the soft PU foam 60 are produced in an integrated structure. Subsequently, the flexible PU foam 60 in which the tread plate 50 is inserted is fixedly mounted between the fixing pins 7 provided on both sides of the lower mold 3 of the second mold 20, and then the second mold ( Injecting the high hardness PU foam 70 resistant to tearing and hydrolysis into the lower mold 3 of 20) to exothermic reaction, and then lowering the fixing pins 7 installed on both sides of the upper mold 4 downward. The lower mold 3 and the upper mold 4 of the second mold 20 are closely coupled, and then the second mold 20 is passed through the heat conveyor, so that the tread plate 50 is filled with the soft PU foam 60. ) And the high hardness PU foam 70 resistant to tearing and hydrolysis are integrally formed to complete the safety shoes window 100 composed of two kinds of PU foams having different properties.

본 발명의 실시 예는 디딤판(50)이 장입된 연질 PU 폼(60)과 인열 및 가수분해에 강한 고경도 PU 폼(70)을 일체형으로 구성한 것으로서, 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 외벽은 고경도 PU 폼을 사용하고, 내벽은 저비중 PU 폼을 사용 하므로서, 종래의 고경도 일체형 창보다 본 발명의 저비중, 고경도로 구성된 이중 PU 창이 훨씬 경제적이고 실용적인 특징이 있다An embodiment of the present invention is to configure a soft PU foam 60, the stepping plate 50 is loaded with a high hardness PU foam 70 resistant to tearing and hydrolysis, integrally, the stepping plate 50 is integrally bonded bond Manufactured without use, the tread 50 is never released from the window. 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, the 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 high hardness integrated window.

도1은 제1 금형에 디딤판과 PU 폼을 일체형으로 구성한 단면도.1 is a cross-sectional view in which the tread plate and the PU foam are integrally formed in a first mold;

도2는 제2금형에 디딤판과 고경도 PU 폼을 이중으로 결합한 단면도.FIG. 2 is a cross-sectional view of a double mold combining a stepping plate and a high hardness PU foam in a second mold; FIG.

도3은 안전화 창의 사시도3 is a perspective view of a safety shoe window

※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 폼60-Soft PU Foam 70-Hard PU Foam

100 - 안전화 창100-safety boots

Claims (1)

제1 금형(10)의 하부 금형(1)과 상부 금형(2)의 양측부에 각각 설치된 디딤판 고정핀(6)사이에 방탄용 섬유 재질로 된 고강도의 디딤판(50)을 고정 장착한 다음 상기의 하부 금형(1)의 상단면에 연질 PU 폼(60)을 주입하여 발열 반응시킨 후, 상기 제1 금형(10)의 하부 금형(1)과 상부 금형(2)을 밀접하게 결합한 다음, 이 제1 금형(10)을 열 컨베이어(70～80℃)를 통과시킴으로서 디딤판(50)과 연질 PU 폼(60)을 일체형 구조로 생성한 후 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 발열 반응시킨 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 결합한 후 이 제2금형(20)를 열 컨베이어속을 통과시킴으로서 상기 디딤판(50)이 장입된 연질 PU 폼(60)과 인열 및 가수분해에 강한 고경도 PU 폼(70)을 일체형으로 생성하여 성질이 다른 두 종류의 PU 폼으로 구성된 안전화용 창(100)을 완성함을 특징으로 하는 디딤판이 장입된 안전화 창.Between the lower mold 1 of the first mold 10 and the stepping plate fixing pins 6 installed on both sides of the upper mold 2, respectively, the high-strength stepping plate 50 made of a bulletproof fiber material is fixed and mounted. After the exothermic reaction by injecting a soft PU foam (60) to the upper surface of the lower mold (1) of the lower mold (1) and the upper mold (2) of the first mold 10 is closely coupled, The first mold 10 is passed through a heat conveyor (70 to 80 ° C.) to produce the stepping plate 50 and the soft PU foam 60 in an integrated structure, and then the stepping pad 50 is loaded with the soft PU foam 60. ) Is fixedly mounted between the fixing pins 7 installed on both sides of the lower mold 3 of the second mold 20, and then resistant to tearing and hydrolysis of the lower mold 3 of the second mold 20. After the high hardness PU foam 70 is injected to exothermic reaction, the fixing pins 7 installed on both sides of the upper mold 4 are lowered to lower the lower mold 3 and the upper portion of the second mold 20. By closely coupling the mold 4, the second mold 20 is passed through a heat conveyor, so that the soft PU foam 60 loaded with the tread plate 50 and the high hardness PU foam resistant to tearing and hydrolysis. A stepped-in safety shoes window, characterized in that to complete the safety shoe window 100 consisting of two types of PU foam having different properties.
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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SG34208A1 (en) 1995-03-01 1996-12-06 Guy Andrew Vaz Blast 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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