WO2011142521A1 - Method for manufacturing foam tires having non-uniform inner bubbles, and structure of the foam tire - Google Patents

Method for manufacturing foam tires having non-uniform inner bubbles, and structure of the foam tire Download PDF

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Publication number
WO2011142521A1
WO2011142521A1 PCT/KR2010/009522 KR2010009522W WO2011142521A1 WO 2011142521 A1 WO2011142521 A1 WO 2011142521A1 KR 2010009522 W KR2010009522 W KR 2010009522W WO 2011142521 A1 WO2011142521 A1 WO 2011142521A1
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Prior art keywords
tire
foam
tires
foaming
layer
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PCT/KR2010/009522
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French (fr)
Korean (ko)
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이성율
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화인케미칼 주식회사
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Publication of WO2011142521A1 publication Critical patent/WO2011142521A1/en

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    • 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
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/02—Solid tyres ; Moulds therefor
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Definitions

  • the present invention relates to a bicycle tire, and more particularly, to provide a foam tire having a low density pore type structure which can exert a predetermined air cushion function without foaming a thermoplastic resin such as EVA and having an air tube embedded therein. will be.
  • the present invention unlike the tube-mounted tires, made of foam resin made of foamed resin, unlike the tube-mounted tires, the interior of the foam tire so as to have an air buffering effect almost the same as the existing air tube built-in configuration
  • the structure is a significant improvement over the existing simple foam type.
  • Tubeless tires which form foam tires by foam injection using thermoplastic resins, are conventionally used in various applications such as caste, industrial tires, toy bicycle tires, and wheelchair tires.
  • the structure of the foam tire of the foam density is a uniform state as a whole, the buffer effect is insufficient and there is a structural disadvantage that is difficult to control the buffer force depending on the application.
  • the present invention is to provide a new foam tire having a good cushioning effect different from the existing foam tire by forming the pore forming structure of the foam tire differently inside and outside.
  • the problem solving means of the present invention unlike foam tires with a uniform pore density as a whole, the outer surface of the tire is a ground contact surface fine pore density and dense to secure a predetermined wear resistance, impact resistance, durability, and
  • the inner layer which has no effect, has a low pore density and a porous vacancy structure is formed in an irregular arrangement so as to secure good elasticity of the conventional air tube embedded tire.
  • the foam tire of the present invention changes the pore density to the internal and external differential cell structure as described above, thereby improving or reinforcing the overall elastic elasticity of the tire rather than the configuration of a tire composed of a conventional uniform pore density, thereby incorporating an air tube built-in tire.
  • the physical product characteristics such as, it will have an excellent industrial effect that can be applied to a wide range of high-end bicycle tires, as well as applied to existing industrial tires.
  • 1 is a view illustrating a configuration of a general tire
  • Figure 3 is a cross-sectional configuration of the present invention tire
  • Figure 4 is a cross-sectional perspective view of the tire of the present invention
  • FIG. 1 is a conventional tire including a bicycle tire
  • Figure 2 is a cross-sectional view of a conventional tire
  • Figure 3 is an enlarged cross-sectional view of a tire produced by the method of the present invention
  • Figure 4 is a view of the present invention The cross-sectional perspective view of the tire manufactured by the method is shown.
  • Existing tire (1) is molded by injection-injecting the foaming resin to 100% capacity corresponding to the total capacity of the mold cavity, and then opened the mold instantaneously, the sponge by the instant foaming function of the foaming agent incorporated into the thermoplastic resin As a porous body of the bed, expansion molding is performed to complete the product.
  • the conventional foam tire manufactured as described above forms a structure of a foam having an overall uniform pore density in cross-sectional structure as shown in FIG. 2.
  • the present invention uses the conventional injection foaming method as it is, but the foaming water support material to be injected in accordance with the mold cavity capacity, that is, the compound material is adjusted to less than the total cavity capacity, characterized in that the foam injection is made after the injection There is this.
  • a raw material compound of a certain particle size is prepared by adding a predetermined blowing agent, a crosslinking agent, and a pigment such as a pigment to a thermoplastic resin raw material such as EVA.
  • the compound material is produced by selecting the raw material, adjusting the capacity of the foaming agent, adjusting the compounding ratio of the crosslinking agent, etc. in accordance with the properties of the tire to produce the optimum raw material compound, and also according to the shape capacity of the mold compound (particle size), etc. Choose by choosing the enemy.
  • Second step supplying the compound material to the mold.
  • the compound material volume supplied to the tire manufacturing mold through the injection nozzle of the injection molding machine is 5 to 50% less than the total cavity capacity of the mold (100%), that is, the compound material corresponds to 70 to 90% of the mold cavity capacity. Less injection injection and foam injection of tire products.
  • the foaming by the blowing agent in the mold receives strong mold pressure in all directions, as shown in FIG. 3.
  • the surface layer A is made of a dense pore layer
  • the middle layer B is made of an intermediate pore layer
  • the central portion of the tire forms a multi-layer pore structure in which an atmospheric pore layer C is formed.
  • the tire surface layer portion A which is responsible for wear resistance and impact resistance weather resistance to the outside, forms a stabilized base portion having a high hardness to maintain a predetermined tire hardness and wear resistance, while increasing the size of the pores toward the inside.
  • This atmospheric pore layer (C) exhibits the function of the elastic pore layer required as the tire, thereby exhibiting good buffering properties and resilience against impact loads as in the conventional air tube-embedded tires.
  • This role of organizational property has the following product characteristics.
  • the surface layer (A) structure which is a microporous layer
  • the intermediate layer (B) which is a mesoporous layer
  • an atmospheric pore layer (C) are formed in the injection foaming process.
  • the surface layer portion A which is a microporous layer formed in the above process, secures the ground wear resistance strength of the tire, and the inner middle layer B and the atmospheric air layer C exhibit the function of an air pack having a predetermined air pressure.
  • the pore-forming structures of the intermediate layer (B) and the atmospheric pore layer (C) formed therein are irregular arrays, but the pore diameter is in the range of about 30-50 mm, and these pores form an air cell structure such as a honeycomb. It performed a function of showed a good buffering function.
  • tire A surface part
  • Foam tires of the present invention as well as being applied to existing industrial tires, and has an excellent industrial effect that can be widely applied to high-end bicycle tires, etc., there is industrial applicability.

Abstract

The present invention relates to a bicycle tire, and more particularly, to a foam tire having a low-density-bubble configuration made of a foamed thermoplastic resin such as EVA, so as to provide a predetermined air cushion function without the use of an air inner tube. The foam tire of the present invention is capable of achieving the physical properties of a tire having an air inner tube by implementing a cell structure in which inner/outer air bubble densities are differentiated as described above in order to improve the overall resilience and strength of the tire as compared to tires of the prior art that are configured with uniform bubble density. Thus, the tire has good industrial applicability and can be applied for existing types of industrial tires, premium bicycle tires, etc.

Description

불규칙한 내부기공을 갖는 폼 타이어의 제조방법 및 폼 타이어의 구조Foam tire manufacturing method with irregular inner pores and foam tire structure
본 발명은 자전거 타이어에 관한 것으로서 더욱 상세히는 EVA등의 열가소성 수지를 발포 성형하여 에어 튜브를 내장하지 않고도 소정의 에어쿠션기능을 발휘할 수 있도록 한 저밀도 기공형 구조의 폼 타이어(foam tire)를 제공하려는 것이다.The present invention relates to a bicycle tire, and more particularly, to provide a foam tire having a low density pore type structure which can exert a predetermined air cushion function without foaming a thermoplastic resin such as EVA and having an air tube embedded therein. will be.
지금까지의 자전거 타이어, 화물운반용 케스트 타이어 등은 외부의 고무타이어만으로는 하중에 의한 완충탄력이 부족하므로 대부분 내부에 에어튜브를 별도로 내장하여 에어쿠션기능에 의한 타이어 기능을 달성하고 있다. Until now, bicycle tires and cargo tires for transportation of cargo have insufficient cushioning elasticity due to load only with external rubber tires, and most of them have built-in air tubes separately to achieve tire functions by air cushion function.
그러나 이러한 에어튜브식 타이어는 복잡한 구조관계상 제작 코스트면에서 고가이고, 사용중 외부의 손상요인에 의해 튜브가 파손되는 기구적 안전성면에서 불리하며, 내장튜브의 재질 특성상 내구성이 단기적인 단점이 따른다.However, such air tube type tires are expensive in terms of manufacturing cost due to their complicated structure, and are disadvantageous in terms of mechanical safety in that the tube is damaged by external damage factors during use, and durability of the built-in tube has short-term durability.
본 발명은 이러한 튜브 내장식 타이어와는 달리 발포성 수지제로서 에어튜브가 없는 폼 타이어를 구성하되, 기존의 에어튜브가 내장된 구성과 거의 동일한 에어완충 효과를 자체적으로 보유할 수 있도록 폼 타이어의 내부구조를 기존의 단순 발포형에 비해 크게 개선한 것이다.The present invention, unlike the tube-mounted tires, made of foam resin made of foamed resin, unlike the tube-mounted tires, the interior of the foam tire so as to have an air buffering effect almost the same as the existing air tube built-in configuration The structure is a significant improvement over the existing simple foam type.
열가소성 수지를 이용하여 발포사출방식으로 폼 타이어를 구성하는 투브레스(Tubeless) 타이어는 종래에도 각 케스트용, 공업용 타이어나 완구자전거용 타이어, 휠체어용 타이어 등 여러 가지 용도에서 적용되고 있는 실정이나 이러한 종래의 폼 타이어의 구조는 발포밀도가 전체적으로 균일한 상태이므로 완충효과가 미흡하고 용도에 따라서 완충력의 조절이 어려운 구조상의 단점이 있었다.Tubeless tires, which form foam tires by foam injection using thermoplastic resins, are conventionally used in various applications such as caste, industrial tires, toy bicycle tires, and wheelchair tires. The structure of the foam tire of the foam density is a uniform state as a whole, the buffer effect is insufficient and there is a structural disadvantage that is difficult to control the buffer force depending on the application.
본 발명은 이에 착안하여 폼 타이어의 기공 형성구조를 내부와 외부가 서로 다르게 형성함으로써 기존의 폼 타이어와는 차원이 다른 양호한 완충효과를 갖는 새로운 폼 타이어를 제공할 수 있도록 한 것이다.The present invention is to provide a new foam tire having a good cushioning effect different from the existing foam tire by forming the pore forming structure of the foam tire differently inside and outside.
본 발명의 과제 해결수단은 상기한 기공밀도가 전체적으로 균일한 폼 타이어와는 달리 타이어의 지면접지면인 외부는 기공밀도가 미세하고 치밀하여 소정의 내마모성, 내충격성, 내구성을 확보하게 되고, 외력의 영향이 미치지 아니하는 내부층은 기공밀도가 낮고 다공성 공실구조가 불규칙적인 배열로 형성되어 종래의 에어튜브 내장형 타이어가 갖는 양호한 신축탄력을 확보할 수 있도록 한 것이다.The problem solving means of the present invention, unlike foam tires with a uniform pore density as a whole, the outer surface of the tire is a ground contact surface fine pore density and dense to secure a predetermined wear resistance, impact resistance, durability, and The inner layer, which has no effect, has a low pore density and a porous vacancy structure is formed in an irregular arrangement so as to secure good elasticity of the conventional air tube embedded tire.
본 발명의 폼 타이어는 기공밀도를 상기와 같이 내외 차등화 셀(Cell) 구조로 변화를 주어 종래의 균일한 기공밀도로 구성된 타이어의 구성보다 타이어의 전체적인 신축탄력을 향상 내지 보다 강화시켜 에어튜브 내장 타이어와 같은 물리적 상품특성을 확보할 수 있도록 함으로써, 기존의 공업용 타이어에 적용은 물론이고, 고급형 자전거 타이어 등에도 폭넓게 적용할 수 있는 우수한 산업적 효과를 갖게 되는 것이다.The foam tire of the present invention changes the pore density to the internal and external differential cell structure as described above, thereby improving or reinforcing the overall elastic elasticity of the tire rather than the configuration of a tire composed of a conventional uniform pore density, thereby incorporating an air tube built-in tire. By ensuring the physical product characteristics such as, it will have an excellent industrial effect that can be applied to a wide range of high-end bicycle tires, as well as applied to existing industrial tires.
도 1은 일반적인 타이어의 구성예시도1 is a view illustrating a configuration of a general tire
도 2는 기존 타이어의 단면구성도2 is a cross-sectional view of a conventional tire
도 3은 본 발명 타이어의 단면 구성도Figure 3 is a cross-sectional configuration of the present invention tire
도 4는 본 발명 타이어의 단면 사시도Figure 4 is a cross-sectional perspective view of the tire of the present invention
도 1은 자전거 타이어를 비롯한 통상의 타이어이고, 도 2는 기존의 타이어를 단면으로 나타낸 것이며, 도 3은 본 발명의 방법에 의해 제조된 타이어의 단면을 확대하여 나타낸 것이며, 도 4는 본 발명의 방법에 의해 제조된 타이어의 단면 사시도를 나타낸 것이다.1 is a conventional tire including a bicycle tire, Figure 2 is a cross-sectional view of a conventional tire, Figure 3 is an enlarged cross-sectional view of a tire produced by the method of the present invention, Figure 4 is a view of the present invention The cross-sectional perspective view of the tire manufactured by the method is shown.
기존의 타이어(1)는 발포성 수지를 금형 케비티 전체용량에 부합하는 100%용량으로 사출 압입하여 제품을 성형한 다음, 금형을 순간적으로 개방함으로써 열가소성 수지 내에 혼입된 발포제의 순간 발포기능에 의하여 스펀지상의 다공체로서 팽창성형이 이루어져 제품이 완성된다.Existing tire (1) is molded by injection-injecting the foaming resin to 100% capacity corresponding to the total capacity of the mold cavity, and then opened the mold instantaneously, the sponge by the instant foaming function of the foaming agent incorporated into the thermoplastic resin As a porous body of the bed, expansion molding is performed to complete the product.
이와 같이 제조되는 종래의 폼 타이어는 도 2와 같이 단면 조직상 기공밀도가 전체적으로 균일한 발포체의 조직을 형성하게 된다.The conventional foam tire manufactured as described above forms a structure of a foam having an overall uniform pore density in cross-sectional structure as shown in FIG. 2.
본 발명은 이와 같은 종래의 사출 발포 공법을 그대로 이용하되 금형 케비티 용량에 맞추어 사출 내입하는 발포수지원료 즉 컴파운드 재료를 전체 케비티 용량보다 적은량으로 조정하여 내입 사출한 후 발포 사출이 이루어지도록 함에 특징이 있다.The present invention uses the conventional injection foaming method as it is, but the foaming water support material to be injected in accordance with the mold cavity capacity, that is, the compound material is adjusted to less than the total cavity capacity, characterized in that the foam injection is made after the injection There is this.
이를 더욱 구체적으로 설명하면 다음과 같다.This will be described in more detail as follows.
제1공정: 원료 컴파운드의 제조.First Step: Preparation of Raw Material Compound.
EVA등의 열가소성 수지 원료에 소정의 발포제, 가교제, 안료등 부재료를 첨가하여 일정한 입도의 원료 컴파운드를 제조한다A raw material compound of a certain particle size is prepared by adding a predetermined blowing agent, a crosslinking agent, and a pigment such as a pigment to a thermoplastic resin raw material such as EVA.
상기 컴파운드 재료는 타이어의 물성치에 부합하도록 원료의 선택, 발포제의 용량조정, 가교제의 배합비조정등을 시행하여 최적의 원료 컴파운드를 제조하며 또한 금형의 형태용량에 따라 원료 컴파운드의 입자크기(입도)등을 적의 선택하여 조성한다.The compound material is produced by selecting the raw material, adjusting the capacity of the foaming agent, adjusting the compounding ratio of the crosslinking agent, etc. in accordance with the properties of the tire to produce the optimum raw material compound, and also according to the shape capacity of the mold compound (particle size), etc. Choose by choosing the enemy.
제2공정: 금형에 컴파운드 재료 공급.Second step: supplying the compound material to the mold.
타이어 제조금형에 사출기의 사출노즐을 통하여 공급하는 컴파운드 재료용량을 금형의 전체 케비티용량(100%) 보다 5~50% 정도 적은 용량 즉 컴파운드 재료를 금형 케비티 용량의 70~90%에 해당하도록 적게 사출압입하여 타이어 제품을 발포 사출한다. 상기와 같이 컴파운드 재료를 케비티 전체용량보다 미리 계산된 용량으로 감량 공급하여 사출발포하게 되면 금형 내에서 발포제에 의한 발포 기포 등이 강력한 금형압을 사방으로 전달받게되어 도 3에 보는 바와 같이 타이어의 표층부(A)는 치밀한 기공층이 이루어지고 중간층(B)는 중간 기공층이 이루어지며, 타이어의 중앙부는 대기공층(C)이 형성되는 다층기공조직을 이루게 된다.The compound material volume supplied to the tire manufacturing mold through the injection nozzle of the injection molding machine is 5 to 50% less than the total cavity capacity of the mold (100%), that is, the compound material corresponds to 70 to 90% of the mold cavity capacity. Less injection injection and foam injection of tire products. As described above, when the compound material is reduced and supplied by the pre-calculated capacity rather than the total capacity of the cavity, the foaming by the blowing agent in the mold receives strong mold pressure in all directions, as shown in FIG. 3. The surface layer A is made of a dense pore layer, the middle layer B is made of an intermediate pore layer, and the central portion of the tire forms a multi-layer pore structure in which an atmospheric pore layer C is formed.
따라서 외부에 내마모성과 내충격성 내후성을 담당하는 타이어 표층부(A)는 경도가 높은 안정화된 기층부를 이루어 소정의 타이어 경도와 내마모력을 유지하는 한편 내측으로 갈수록 기공의 크기가 확대된 대기공층(C)을 형성하게 되므로 이 대기공층(C)은 타이어로서 요구되는 탄성 기공층의 기능을 발휘하여 종래 에어튜브 내입 타이어와 같은 양호한 완충성, 충격부하에 대한 복원성을 발휘하게 되는 것이다.Accordingly, the tire surface layer portion A, which is responsible for wear resistance and impact resistance weather resistance to the outside, forms a stabilized base portion having a high hardness to maintain a predetermined tire hardness and wear resistance, while increasing the size of the pores toward the inside. ), This atmospheric pore layer (C) exhibits the function of the elastic pore layer required as the tire, thereby exhibiting good buffering properties and resilience against impact loads as in the conventional air tube-embedded tires.
이와 같은 조직물성이 갖는 역할은 다음과 같은 상품특성을 가진다.This role of organizational property has the following product characteristics.
① 폼 타이어를 사출 발포성형함에 있어서 특별한 물리적인 내부 장치가 없이 사출 발포과정에서 자연스럽게 미세기공층인 표층부(A)조직과 중간기공층인 중간층(B)과 내부에 대기공층(C)이 형성된다.① In the injection foam molding of foam tires, there is no special physical internal device, and naturally, the surface layer (A) structure, which is a microporous layer, and the intermediate layer (B), which is a mesoporous layer, and an atmospheric pore layer (C) are formed in the injection foaming process. .
② 상기 공정에 형성된 미세기공층인 표층부(A)는 타이어의 접지 내마모성 강도를 확보하게 되고 내부의 중간층(B), 대기공층(C)은 소정의 공기압을 지니는 에어팩의 기능을 발휘하여 종래의 에어튜브 내입형 타이어에 손색이 없는 신축탄력, 완충탄력을 발휘함으로써 타이어의 양호한 상품성을 그대로 확보하게 된다.② The surface layer portion A, which is a microporous layer formed in the above process, secures the ground wear resistance strength of the tire, and the inner middle layer B and the atmospheric air layer C exhibit the function of an air pack having a predetermined air pressure. By exerting the elastic and shock absorbing elasticity of the tube-mounted tires, it is possible to secure the good merchandise of the tire as it is.
③ 금형에 내입하는 컴파운드 재료의 용량이 10~30% 절약되는 만큼 전체적인 재료 소요가 감소되어 재료원가 비용면에서 그만큼 저렴한 경제성을 확보한다.③ As the capacity of compound material into the mold is saved 10 ~ 30%, the overall material requirement is reduced, so it is economical in terms of material cost.
④ 내부에 형성되는 중간층(B)및 대기공층(C)의 기공형성 구조는 불규칙 배열이기는 하지만 대략 기공직경이 30-50mm 정도범위로서 벌집과 같은 에어셀(Air Cell)구조를 이루어 이 기공들이 에어쿠션의 기능을 수행하여 양호한 완충기능을 발휘하였다.④ The pore-forming structures of the intermediate layer (B) and the atmospheric pore layer (C) formed therein are irregular arrays, but the pore diameter is in the range of about 30-50 mm, and these pores form an air cell structure such as a honeycomb. It performed a function of showed a good buffering function.
⑤ 실제 타이어로서 일반 산업용 케스트 타이어 및 자전거 타이어에 사용한 결과 노면의 악조건 속에서도 양호한 완충 및 탄성강도를 유지하여 우수한 상품성을 발휘하였다.⑤ As a real tire, it was used in general industrial cast tires and bicycle tires. As a result, it exhibited excellent merchandise by maintaining good cushioning and elastic strength even under bad conditions of the road surface.
(부호의 설명)(Explanation of the sign)
1: 타이어 A:표층부 1: tire A: surface part
B:중간층 C:대기공층B: Middle layer C: Atmospheric layer
본 발명의 폼 타이어는 기존의 공업용 타이어에 적용은 물론이고, 고급형 자전거 타이어 등에도 폭넓게 적용할 수 있는 우수한 산업적 효과를 가지므로 산업상 이용가능성이 있다.Foam tires of the present invention, as well as being applied to existing industrial tires, and has an excellent industrial effect that can be widely applied to high-end bicycle tires, etc., there is industrial applicability.

Claims (3)

  1. 고무, EVA 등의 열가소성 합성수지 원료에 발포제, 가교제, 안료 등 첨가제를 혼합하여 원료 컴파운드를 제조한 다음 이를 사출발포, 프레스 발포 등의 방법으로 발포시켜 제품을 제조하는 통상의 폼 타이어의 제조공정에 있어서,In the manufacturing process of a conventional foam tire in which a raw material compound is prepared by mixing an additive such as a foaming agent, a crosslinking agent, and a pigment with thermoplastic synthetic resin raw materials such as rubber and EVA, and then foaming the same by injection foaming or press foaming. ,
    발포성형금형에 상기 컴파운드 재료를 공급할 시 금형전체용량에 대하여 컴파운드 재료용량을 70~95%정도의 용량으로 투입하여 발포성형함을 특징으로 하는 불규칙한 내부기공을 갖는 폼 타이어의 제조방법.A method of manufacturing a foam tire having irregular inner pores, wherein the compound material is injected at a capacity of about 70 to 95% based on the total capacity of the mold when the compound material is supplied to the foam molding die.
  2. 타이어의 구성이 외부층은 규칙적인 셀(Cell) 구조를 가진 고밀도 층으로 구성되고 내부층은 기공직경이 30~50mm정도의 불규칙한 발포기공 셀(Cell)의 구조를 갖는 폼 타이어의 구성.The outer layer consists of a high density layer with a regular cell structure, and the inner layer consists of a foam tire with an irregular foamed pore cell with a pore diameter of about 30 to 50 mm.
  3. 제2항에 있어서,The method of claim 2,
    외부의 고밀도층과 내부의 저밀도층 사이에 기공직경 20~30mm정도의 중간 밀도층을 갖도록 한 폼 타이어의 구성.Foam tires have a medium density layer with a pore diameter of about 20 to 30 mm between the outer high density layer and the inner low density layer.
PCT/KR2010/009522 2010-05-11 2010-12-29 Method for manufacturing foam tires having non-uniform inner bubbles, and structure of the foam tire WO2011142521A1 (en)

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Publication number Priority date Publication date Assignee Title
WO2018224757A1 (en) * 2017-06-09 2018-12-13 Compagnie Generale Des Etablissements Michelin Tread manufacturing method
CN109318445A (en) * 2018-11-20 2019-02-12 安徽世界村新材料有限公司 A kind of high-elastic wear-resistant dual density foam-in-mould rubber tyre and its manufacture craft

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JPH0248201A (en) * 1988-08-08 1990-02-19 Aichi Tire Kogyo Kk Tyre of handtruck and its manufacture
JPH07314572A (en) * 1994-05-25 1995-12-05 Mitsuboshi Belting Ltd Solid tire for bicycle
KR960014538B1 (en) * 1993-06-14 1996-10-16 제일모직 주식회사 Injection forming method and apparatus for thermosetting resin articles
KR200235949Y1 (en) * 2000-12-26 2001-11-16 황보국정 Mold Structure for Simultaneous Manufacturing of Rubber Window and Foam Weight Box and Operation Structure of Heated Foam Press

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JPH0248201A (en) * 1988-08-08 1990-02-19 Aichi Tire Kogyo Kk Tyre of handtruck and its manufacture
KR960014538B1 (en) * 1993-06-14 1996-10-16 제일모직 주식회사 Injection forming method and apparatus for thermosetting resin articles
JPH07314572A (en) * 1994-05-25 1995-12-05 Mitsuboshi Belting Ltd Solid tire for bicycle
KR200235949Y1 (en) * 2000-12-26 2001-11-16 황보국정 Mold Structure for Simultaneous Manufacturing of Rubber Window and Foam Weight Box and Operation Structure of Heated Foam Press

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018224757A1 (en) * 2017-06-09 2018-12-13 Compagnie Generale Des Etablissements Michelin Tread manufacturing method
FR3067213A1 (en) * 2017-06-09 2018-12-14 Compagnie Generale Des Etablissements Michelin METHOD FOR PRODUCING ROLLING STRIP
CN109318445A (en) * 2018-11-20 2019-02-12 安徽世界村新材料有限公司 A kind of high-elastic wear-resistant dual density foam-in-mould rubber tyre and its manufacture craft

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