KR101038052B1 - Structure of shoes bottom - Google Patents

Structure of shoes bottom Download PDF

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Publication number
KR101038052B1
KR101038052B1 KR1020080089067A KR20080089067A KR101038052B1 KR 101038052 B1 KR101038052 B1 KR 101038052B1 KR 1020080089067 A KR1020080089067 A KR 1020080089067A KR 20080089067 A KR20080089067 A KR 20080089067A KR 101038052 B1 KR101038052 B1 KR 101038052B1
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KR
South Korea
Prior art keywords
heel
shoe
sole
shoe sole
elastic restoring
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KR1020080089067A
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Korean (ko)
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KR20100030224A (en
Inventor
임재영
Original Assignee
임봉근
임재영
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Publication date
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Priority to KR1020080089067A priority Critical patent/KR101038052B1/en
Priority to PCT/KR2009/002893 priority patent/WO2010030070A1/en
Priority to US12/478,396 priority patent/US20100058613A1/en
Publication of KR20100030224A publication Critical patent/KR20100030224A/en
Application granted granted Critical
Publication of KR101038052B1 publication Critical patent/KR101038052B1/en

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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
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
    • A43B13/145—Convex portions, e.g. with a bump or projection, e.g. 'Masai' type shoes
    • 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
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A43B13/183—Leaf springs
    • 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
    • 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
    • A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
    • A43B13/146—Concave end portions, e.g. with a cavity or cut-out portion
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/141—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form having an anatomical or curved form

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

본 발명은 신발 바닥의 구조에 관한 것이다.The present invention relates to the structure of a shoe sole.

이를 위하여, 본 발명은 바닥판, 중창 및 안창이 재봉 또는 부착에 의하여 맞대어지도록 구성된 신발 바닥의 구조에 있어서, 상기 신발 바닥은 뒷굽과 앞굽 사이에 상부로 오목한 형태를 갖는 꺽임부가 형성되어지고, 상기 꺽임부에 탄성복원부가 구비되어 신발 바닥의 뒷굽이 발꿈치에 밀착되어지게 구성되어짐을 특징으로 한다.To this end, the present invention in the structure of the sole of the shoe bottom plate, midsole and insole is configured to meet by sewing or attachment, the shoe bottom is formed between the heel and the front heel has a concave shape is formed in the upper, It is characterized by being configured to be in close contact with the heel of the shoe sole is provided with the elastic restoring portion.

따라서, 본 발명은 신발 바닥의 탄성복원부에 의하여 신발 바닥의 뒷굽이 발꿈치를 향하여 항상 들어올려져 밀착되어지게 함으로써, 신발의 벗겨짐을 방지함과 동시에 보행의 편리성을 높일 수 있도록 하고, 이를 통해 밀착성을 증대시켜 순발력을 높여주고, 아울러 신발 사이즈에 관계없이 용이하게 신빌을 신을 수 있도록 한 것이다.Therefore, the present invention is to ensure that the heel of the shoe sole by the elastic restoring portion of the shoe sole is always lifted toward the heel to be in close contact with each other, thereby preventing the shoe from peeling off and at the same time increasing the convenience of walking, thereby improving adhesion It increases the quickness, and also makes it easy to wear Sinbil regardless of shoe size.

뒷굽, 앞굽, 꺽임부, 탄성복원부 Heel, forefoot, fold, elastic restoration

Description

신발 바닥의 구조{Structure of shoes bottom}Structure of shoes bottom}

본 발명은 신발 바닥의 구조에 관한 것으로서 특히, 신발 바닥의 뒷굽과 앞굽 사이에 탄성복원부가 구비된 오목한 형태를 갖는 꺽임부가 형성되어지도록 함으로써, 신발 바닥의 뒷굽이 발꿈치를 향하여 항상 들어올려져 밀착되어지게 하여 신빌의 벗겨짐을 방지함과 동시에 보행의 편리성을 높일 수 있도록 하고, 이를 통해 밀착성을 높여 순발력을 높여주고, 아울러 신발 사이즈에 관계없이 용이하게 신을 수 있도록 한 것이다.The present invention relates to a structure of a shoe sole, and in particular, by forming a bent portion having a concave shape provided with an elastic restoring portion between the heel and the front heel of the shoe sole, so that the heel of the shoe sole is always lifted toward the heel to be in close contact. It prevents the peeling of the Sinbil and at the same time improves the convenience of walking, thereby increasing the adhesion to increase the quickness, and also to be able to easily wear regardless of shoe size.

일반적으로 발의 보호와 장식을 하며 동시에 바닥에 미끄러지는 것을 방지하기 위한 방안으로 신발(구두, 남여 운동화, 뒷굽이 있는 것)을 신게 되고, 신발은 통상 바닥창과 중창 및 안창으로 이루어진 신발 바닥에 받등을 감쌀 수 있는 신발 갑피로 구성되어 있다Generally, shoes (shoes, unisex sneakers, heeled shoes) are worn as a way to protect and decorate the feet and to prevent slipping at the same time. Shoes are usually placed on the soles of the soles of soles, midsoles and insoles. Composed of wrapable shoe uppers

이러한 신발 바닥은 바닥창과 중창 및 안창은 거의 동일한 길이를 가지며 그 사이에 접착제로 부착되어지거나 가장자리가 박음질로 결합되어지도록 구성되어지 고, 신발 갑피는 안창의 가장자리를 감싼 상태로 바닥창의 테두리 내측과 안창 사이로 삽입되어 안창과 바닥창 사이에 접착체로 접착되어지도록 구성되어 있다.These shoe soles are constructed so that the soles, midsoles and insoles have approximately the same length and are glued or sewn together between the soles, and the shoe uppers cover the inner soles of the soles with the edges of the insoles wrapped around them. It is configured to be inserted between the insole and glued between the insole and the sole.

또한, 신발 바닥의 앞꿈치와 뒷꿈치 사이에는 상부로 볼록하거나 오목한 형태를 갖는 밀착부가 형성되어 사용자의 발바닥에 신발 바닥이 완전히 밀착되어지도록 하여 발의 피로를 줄이는 가운데 바닥으로부터 작용하는 충격을 흡수할 수 있도록 형성되어 있다.In addition, between the front heel and the heel of the shoe sole is formed in the upper convex or concave shape is formed so that the sole of the shoe is in close contact with the sole of the user is formed to absorb the impact from the floor while reducing the fatigue of the foot It is.

그러나 이러한 신발 바닥은 거의 가운데 부분에 형성된 밀착부가 단순한 형태로 형성되어 발바닥에 밀착되어질 수 있으나, 신발을 신고 걷는 과정에서 발바닥으로부터 신발 바닥의 뒷굽 부분이 이격되는 문제점이 있었다.However, the bottom of the shoe is formed in a simple form in the center portion can be in close contact with the sole of the sole, but in the process of walking in the shoe there is a problem that the heel of the sole of the shoe is separated from the sole of the foot.

또한, 신발 바닥이 뒷굽으로부터 이격됨에 따라 발의 크기 보다 좀 큰 신발을 신을 경우, 걷는 과정에서 신발 뒷굽이 자주 벗겨지는 문제점이 있었고, 이로 인하여 마찰로 발뒷꿈치가 벗겨지거나 물집이 생기는 문제점이 있었다.In addition, when shoes are worn a little larger than the size of the foot as the sole of the shoe is spaced apart from the heel, the heel of the shoe is often peeled off during the walking process, which causes a problem that the heel is peeled off or blistered due to friction.

그리고 이러한 원인으로 인하여 불편한 보행이 이루어지는 또 다른 문제점이 있었다.And due to this cause there was another problem that the uncomfortable gait is made.

본 발명은 이와 같은 문제점을 해소하기 위해 창출된 것으로서 신발 바닥의 뒷굽이 발꿈치를 향하여 항상 들어올려져 밀착되어지게 하여 신발의 벗겨짐을 방지함과 동시에 보행의 편리성을 높일 수 있도록 하고, 이를 통해 밀착성을 높여 순발 력을 높여주고, 아울러 신발 사이즈에 관계없이 용이하게 신을 수 있는 신발 바닥의 구조를 제공하는데 그 목적이 있다.The present invention was created in order to solve such a problem, so that the heel of the shoe bottom is always lifted up and close to the heel to prevent the shoe from peeling off and at the same time increase the convenience of walking, thereby improving adhesion. The purpose is to provide a structure of a shoe sole that can be easily worn regardless of shoe size.

본 발명은 바닥판, 중창 및 안창이 재봉 또는 부착에 의하여 맞대어지도록 구성된 신발 바닥의 구조에 있어서, 상기 신발 바닥은 뒷굽(10)과 앞굽(20) 사이에 상부로 오목한 형태를 갖는 꺽임부(30)가 형성되어지고, 상기 꺽임부(30)에 탄성복원부(40)가 구비되어 신발 바닥의 뒷굽이 발꿈치에 밀착되어지게 구성되어짐을 특징으로 한다.The present invention in the structure of the shoe sole is configured so that the bottom plate, the midsole and the insole to be opposed to each other by sewing or attachment, the bottom of the shoe (30) having a concave upward shape between the heel 10 and the front heel 20 ) Is formed, the bending portion 30 is provided with an elastic restoring portion 40 is characterized in that the heel of the sole of the shoe is configured to be in close contact with the heel.

또한, 상기 탄성복원부(40)는 형상기억합금으로 이루어짐을 특징으로 한다.In addition, the elastic restoring portion 40 is characterized in that made of a shape memory alloy.

또한, 상기 탄성복원부(40)는 꺽임부(30)를 구성하는 중창(32)의 상부 또는 하부에 설치되어짐을 특징으로 한다.In addition, the elastic restoring portion 40 is characterized in that it is installed on the upper or lower portion of the midsole 32 constituting the bent portion (30).

또한, 상기 탄성복원부(40)는 꺽임부(40)의 일부를 절취해낸 공간인 안착부(41)에 결합되어짐을 특징으로 한다.In addition, the elastic restoring portion 40 is characterized in that it is coupled to the seating portion 41 which is a space cut out a portion of the bent portion (40).

또한,상기 탄성복원부(40)는 복수개의 스틸판(42)(42')이 맞대어져 스프링(43)이 끼워진 힌지핀(44)에 의하여 결합되어짐을 특징으로 한다.In addition, the elastic restoring portion 40 is characterized in that the plurality of steel plates 42, 42 'is coupled by a hinge pin 44, the spring 43 is fitted.

한편, 본 발명은 바닥판, 중창 및 안창이 사출성형에 의하여 성형되어지도록 구성된 신발 바닥의 구조에 있어서, 상기 신발 바닥은 뒷굽(10)과 앞굽(20) 사이에 상부로 오목한 형태를 갖는 꺽임부(30)가 형성되어지고, 상기 꺽임부(30)의 내부인 중창에 탄성복원부(40')가 인서트되어 신발 바닥의 뒷굽이 발꿈치에 밀착되어지게 구성되어짐을 특징으로 한다.On the other hand, the present invention in the structure of a shoe sole configured to be molded by injection molding sole plate, midsole and insole, the shoe bottom is a bent portion having a concave shape upward between the heel 10 and the front heel 20. 30 is formed, and the elastic restoring portion 40 'is inserted into the midsole, which is the inside of the bent portion 30, characterized in that the heel of the shoe sole is configured to be in close contact with the heel.

또한, 상기 탄성복원부(40')는 형상기억합금으로 이루어짐을 특징으로 하는 신발 바닥의 구조를 제공함에 그 목적이 달성된다.In addition, the object is achieved by providing a structure of the shoe sole, characterized in that the elastic restoring portion (40 ') is made of a shape memory alloy.

본 발명은 신발 바닥의 뒷굽과 앞굽 사이에 탄성복원부가 구비된 오목한 형태를 갖는 꺽임부가 형성되어지도록 함으로써, 신발 바닥의 뒷굽이 발꿈치를 향하여 항상 들어올려져 밀착되어지게 하여 신발의 벗겨짐을 방지할 수 있는 효과를 얻을 수 있다.The present invention is to be formed between the heel and the front heel of the shoe bottom is formed with a concave shape with a concave elastic restoration, the heel of the shoe bottom is always lifted toward the heel to be in close contact to prevent the shoe peeling off The effect can be obtained.

또한, 이를 통해 신발이 벗겨지지 않음으로써, 보행의 편리성을 높일 수 있는 효과를 얻을 수 있다.In addition, the shoe does not come off through this, it is possible to obtain the effect of increasing the convenience of walking.

또한, 신발 바닥의 뒷굽이 발꿈치에 항상 밀착되어지도록 함으로써, 밀착성을 높여 순발력을 높여줄 수 있는 효과를 얻을 수 있다.In addition, by keeping the heel of the shoe is always in close contact with the heel, it is possible to obtain an effect that can increase the quickness by increasing the adhesion.

그리고 신발 사이즈에 관계없이 용이하게 여러가지 신발을 신을 수 있는 효과를 더 얻을 수 있다.Regardless of the shoe size, you can easily wear various shoes.

본 발명의 실시예를 첨부 도면을 참조하여 설명하면 다음과 같다.An embodiment of the present invention will be described with reference to the accompanying drawings.

도1은 본 발명에 따른 신발 바닥의 구조를 도시한 사시도이고, 도2는 본 발명에 따른 신발 바닥의 구조를 도시한 종단면도이다.1 is a perspective view showing the structure of a shoe sole according to the present invention, Figure 2 is a longitudinal sectional view showing the structure of a shoe sole according to the present invention.

본 발명에 따른 신발 바닥의 구조는 도1 및 도2에 도시된 바와 같이, 바닥판, 중창 및 안창이 재봉 또는 부착에 의하여 맞대어지도록 구성된 신발 바닥에 꺽임부(30)가 형성되어지고, 상기 꺽임부(30)에 신발 바닥의 뒷부분을 항상 위로 향하는 탄성력이 작용되어지는 탄성복원부(40)가 설치되어지도록 구성되어 있다.The structure of the shoe sole according to the present invention, as shown in Figures 1 and 2, the bent portion 30 is formed on the bottom of the shoe is configured so that the bottom plate, the midsole and the insole is opposed to each other by sewing or attachment, the bending The portion 30 is configured to be provided with an elastic restoring portion 40 to which the elastic force is always applied to the rear portion of the shoe bottom upward.

이는 신발 바닥의 전,후를 형성하는 뒷굽(10)과 앞굽(20) 사이에 상부로 오목한 형태를 갖는 꺽임부(30)가 형성되어지고, 상기 꺽임부(30)에 탄성복원부(40)가 구비되어 신발 바닥의 뒷굽이 항상 발꿈치에 밀착되어지게 구성되어있다.It is formed between the heel 10 and the front heel 20 to form the front and rear of the shoe sole, a bent portion 30 having a concave shape to the top, the elastic portion 40 to the bent portion 30 It is equipped so that the heel of the shoe bottom is always in close contact with the heel.

상기 탄성복원부(40)는 꺽임부(30)의 형태와 동일한 형태를 갖는 형상기억합금으로 이루어져 신발을 신고 걷는 과정에서 어느 정도의 하중이나 충격에 의하여 신발 바닥이 펼쳐지도록 하고, 하중이나 충격이 해소 되었을 경우 즉시, 원래의 형태로 신속하게 복원되어지도록 구성되어 있다.The elastic restoring part 40 is made of a shape memory alloy having the same shape as that of the bent part 30 so that the bottom of the shoe is unfolded by a certain load or impact in the process of wearing shoes, and the load or impact is When it is resolved, it is configured to be promptly restored to its original form.

이러한 탄성복원부(40)는 꺽임부(30)를 구성하는 중창(32)의 상부 또는 하부에 선택적으로 설치되어지도록 하거나, 탄성복원력을 높이기 위하여 중창(32)의 상,하부에 동시에 설치되어지도록 하는 것이 더욱 바람직하다.The elastic restoring portion 40 is to be selectively installed on the upper or lower portion of the midsole 32 constituting the bent portion 30, or to be simultaneously installed on the upper and lower portions of the midsole 32 in order to increase the elastic restoring force. More preferably.

또한, 신발 바닥에 형성된 꺽임부(30)가 변형 및 복원되어지도록 하는 주된 기능을 갖는 탄성복원부(40)는 꺽임부(30)의 일부를 절취해낸 공간인 안착부(41)에 삽입, 결합되어지도록 하는 것이 바람직하다.In addition, the elastic restoring portion 40 having a main function of deforming and restoring the bent portion 30 formed on the bottom of the shoe is inserted into and coupled to the seating portion 41, which is a space from which a part of the bent portion 30 is cut out. It is desirable to make it.

상기 탄성복원부(40)는 형상기억합금 이외에 도3 및 도4에 도시된 바와 같이, 기구적인 방식인 복수개의 스틸판(42)(42')의 가운데 부분이 맞대어지도록 한 후 스프링(43)이 끼워진 힌지핀(44)이 두개의 스틸판(42)(42')를 관통하여 결합되 어지도록 할 수 있다.The elastic restoring portion 40, as shown in Figures 3 and 4, in addition to the shape memory alloy, so that the center portion of the plurality of steel plates 42, 42 'in a mechanical manner abuts the spring 43 The fitted hinge pin 44 may be coupled through two steel plates 42 and 42 '.

이러한 경우, 스프링(43)의 일측은 스틸판(42)에 걸려지며 타측은 다른 스틸판(42')에 걸려져 스트링(43)의 탄성력에 의하여 스틸판(42)(42')가 항상 펼쳐지는 방향으로 작용하도록 하는 것이 바람직하다.In this case, one side of the spring 43 is caught by the steel plate 42 and the other side is caught by the other steel plate 42 'so that the steel plates 42 and 42' are always unfolded by the elastic force of the string 43. It is desirable to act in the direction.

한편, 본 발명에서는 바닥판, 중창 및 안창이 재봉 또는 부착에 의하여 맞대어지도록 구성된 신발 바닥의 꺽임부에 탄성복원부가 구비되어지도록 하였으나, 이러한 구조 이외에 바닥판, 중창 및 안창이 사출성형에 의하여 일체로 성형되어지도록 하는 경우에서 사용할 수 있다. 이때 상기 신발 바닥은 전기한 바와 같이, 뒷굽(10)과 앞굽(20) 사이에 상부로 오목한 형태를 갖는 꺽임부(30)가 형성되어지고, 상기 꺽임부(30)의 내부인 중창에 탄성복원부(40')가 인서트되어 신발 바닥의 뒷굽이 발꿈치에 밀착되어지도록 구성되어지고, Meanwhile, in the present invention, the bottom plate, the midsole, and the insole are provided so that the elastic restoring portion is provided at the bent portion of the sole of the shoe configured to be opposed to each other by sewing or attachment, but in addition to such a structure, the bottom plate, the midsole, and the insole are integrally formed by injection molding. It can be used in the case where it is to be molded. In this case, as described above, the bent portion 30 having a concave shape is formed between the heel 10 and the front heel 20 as described above, and the elastic restoring to the midsole that is the inside of the bent portion 30. The part 40 'is inserted so that the heel of the shoe bottom is pressed against the heel,

이러한 탄성복원부(40')는 전기한 바와 같이 형상기억합금으로 이루어지도록 할 수 있다.The elastic restoring portion 40 ′ may be made of a shape memory alloy as described above.

도1은 본 발명에 따른 신발 바닥의 구조를 도시한 사시도.1 is a perspective view showing the structure of a shoe sole according to the present invention.

도2는 본 발명에 따른 신발 바닥의 구조를 도시한 종단면도.Figure 2 is a longitudinal sectional view showing the structure of a shoe sole according to the present invention.

도3은 본 발명에 따른 신발 바닥의 다른 구조를 도시한 사시도.Figure 3 is a perspective view showing another structure of a shoe sole according to the present invention.

도4는 본 발명에 따른 신발 바닥의 다른 구조를 도시한 단면도.Figure 4 is a cross-sectional view showing another structure of a shoe sole according to the present invention.

도5는 본 발명에 따른 신발 바닥의 또 다른 구조를 도시한 사시도.Figure 5 is a perspective view showing another structure of a shoe sole according to the present invention.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

10:뒷굽 20:앞굽10: heel 20: front heel

30:꺽임부 40:탄성복원부30: bending part 40: elastic restoring part

Claims (7)

바닥판, 중창 및 안창이 재봉 또는 부착에 의하여 맞대어지도록 구성된 신발 바닥의 구조에 있어서,In the structure of the shoe sole, the sole plate, the midsole and the insole are configured to face each other by sewing or attachment, 상기 신발 바닥은 뒷굽(10)과 앞굽(20) 사이에 상부로 오목한 형태를 갖는 꺽임부(30)가 형성되어지고, 상기 오목한 형태의 꺽임부(30)를 구성하는 중창(32)의 안착부(41)에 복수개의 스틸판(42)(42')이 맞대어져 스프링(43)이 끼워진 힌지핀(44)에 의하여 결합되어진 탄성복원부(40)가 안착 구비되어 신발 바닥의 뒷굽이 발꿈치에 밀착되어지게 구성되어짐을 특징으로 하는 신발 바닥의 구조.The shoe sole is formed with a bent portion 30 having a concave shape upward between the heel 10 and the front heel 20, and a seating portion of the midsole 32 constituting the concave portion 30. A plurality of steel plates 42 and 42 'are fitted to the 41 so that the elastic restoring portion 40 coupled by the hinge pin 44 with the spring 43 fitted therein is seated so that the heel of the shoe sole is placed on the heel. A shoe sole structure, characterized in that it is configured to be in close contact. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
KR1020080089067A 2008-09-10 2008-09-10 Structure of shoes bottom KR101038052B1 (en)

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KR1020080089067A KR101038052B1 (en) 2008-09-10 2008-09-10 Structure of shoes bottom
PCT/KR2009/002893 WO2010030070A1 (en) 2008-09-10 2009-05-29 Structure of bottom of shoes
US12/478,396 US20100058613A1 (en) 2008-09-10 2009-06-04 Structure of bottom of shoes

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