KR100465505B1 - Tire shaping bladder - Google Patents

Tire shaping bladder Download PDF

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Publication number
KR100465505B1
KR100465505B1 KR10-2001-0073436A KR20010073436A KR100465505B1 KR 100465505 B1 KR100465505 B1 KR 100465505B1 KR 20010073436 A KR20010073436 A KR 20010073436A KR 100465505 B1 KR100465505 B1 KR 100465505B1
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KR
South Korea
Prior art keywords
bladder
end portion
turn
forming drum
cylindrical body
Prior art date
Application number
KR10-2001-0073436A
Other languages
Korean (ko)
Other versions
KR20030042691A (en
Inventor
정규영
Original Assignee
한국타이어 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Priority to KR10-2001-0073436A priority Critical patent/KR100465505B1/en
Publication of KR20030042691A publication Critical patent/KR20030042691A/en
Application granted granted Critical
Publication of KR100465505B1 publication Critical patent/KR100465505B1/en

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Classifications

    • 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
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings
    • 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
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
    • 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
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings
    • B29D2030/2614—Bladders associated with the building drum, e.g. bladders used for the toroidal expansion, bladders for turning-up the plies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)

Abstract

본 발명은 타이어 제조용 소재를 결합하여 그린 타이어를 제조할 때에 사용되는 블래더(Bladder)에 관한 것이다. 그린타이어 성형용 드럼의 일측에는 턴엎 블래더가 설치되어 있는 바, 소재를 결합한 원통형체를 성형용 드럼에 삽입하기 위해서는 턴엎 블래더를 통과하지 않을 수 없다. 소재인 원통형체를 성형드럼에 끼울 때에는 턴엎 블래더가 수축되어 있어야 하는데, 턴엎 블래더가 팽창과 수축을 반복함에 따라 팽창량이 큰 끝단부가 이완되어 쳐들려지게 됨으로 소재인 원통형체의 삽입이 곤란하게 되는 결점이 있다. 이에 본 발명은 턴엎 블래더가 수축된 상태에 있어서의 끝단부 내측에 보강재를 설치함으로써, 끝단부가 이완되더라도 보강재 설치부는 늘어나지 아니하게 하여 끝단부가 외측으로 벌어지지 아니하게 하며, 나아가 블래더 끝단부의 직경을 끝단으로 갈수록 점점 축소시켜 끝단부가 내측으로 굽어져 있게 하여 블래더가 어느 정도 이완되더라도 소재인 원통형체를 성형용 드럼에 삽입하기에 곤란하지는 아니하게 한 것임.The present invention relates to a bladder (Bladder) used in the production of green tires by combining the tire manufacturing material. One side of the green tire-forming drum is provided with a turn-over bladder, in order to insert the cylindrical body combining the material into the forming drum, it is necessary to pass through the turn-over bladder. When the cylindrical body is inserted into the forming drum, the turn-over bladder must be retracted. As the turn-over bladder repeats expansion and contraction, the end of the large expansion is loosened and is struck. There is a drawback. In the present invention, by installing the reinforcement inside the end portion in the state that the turnover bladder is contracted, even if the end portion is relaxed, the reinforcement installation portion does not stretch so that the end portion does not open outward, and furthermore, the diameter of the bladder end portion It is gradually reduced to the end so that the end is bent inward so that the bladder is relaxed to some extent so that it is not difficult to insert the cylindrical body as a material into the forming drum.

Description

타이어 성형용 블래더{Tire shaping bladder}Tire shaping bladder {Tire shaping bladder}

본 발명은 타이어 제조용 소재를 결합하여 그린 타이어를 제조할 때에 사용되는 블래더(Bladder)에 관한 것이다.The present invention relates to a bladder (Bladder) used in the production of green tires by combining the tire manufacturing material.

그린타이어 성형용 드럼의 일측에는 턴엎(Turn up) 블래더가 설치되어 있는 바, 소재를 결합한 원통형체(이를 통상 Band라 칭함)를 성형용 드럼(Shaping drum)에 삽입하기 위해서는 턴엎 블래더를 통과하지 않을 수 없다. 따라서 소재인 원통형체를 성형드럼에 끼울 때에는 턴엎 블래더가 수축되어 있어야 하는데, 턴엎 블래더는 그 사용에 따라 팽창과 수축을 반복하게 마련이므로 팽창량이 큰 끝단부가 확대되어 쳐들려지게 된다. 따라서 소재인 원통형체를 성형 드럼에 삽입하는 일이 곤란하게 되는 결점이 있다.One side of the green tire forming drum is provided with a turn up bladder, and a cylindrical body (commonly referred to as a band) combining materials is passed through the turn up bladder to insert the shaping drum. You can't help it. Therefore, when the cylindrical body is inserted into the forming drum, the turnover bladder must be contracted. The turnover bladder is repeatedly expanded and contracted according to its use, and thus the end of the large expansion is enlarged and struck. Therefore, there exists a fault which becomes difficult to insert the cylindrical body which is a raw material into a shaping | molding drum.

이에 본 발명은, 턴엎 블래더가 수축된 상태에 있어서의 끝단부 내측에 보강재를 설치함으로써, 끝단부가 늘어나더라도 보강재 설치부는 늘어나지 아니하게 하여 끝단부가 외측으로 벌어지지 아니하게 하며, 나아가 블래더 끝단부의 직경을 끝단으로 갈수록 점점 축소시켜 끝단부가 내측으로 굽어져 있게 하여 블래더가 어느 정도 이완되더라도 소재인 원통형체를 성형용 드럼에 삽입하기 곤란하지는 아니하게 한 것인 바, 이와 같은 본 발명을 첨부된 도면에 의하여 설명하면 다음과 같다.Accordingly, the present invention, by installing the reinforcing material inside the end portion in the state that the turnover bladder is in a contracted state, so that even if the end portion is increased, the reinforcing member installation portion does not stretch so that the end portion does not open to the outside, and further, the bladder end portion The diameter is gradually reduced toward the end so that the end portion is bent inward, so that the bladder is relaxed to some extent so that it is not difficult to insert the cylindrical body as a material into the forming drum. Referring to the drawings as follows.

도 1 은 본 발명의 블래더의 종 단면도1 is a longitudinal sectional view of the bladder of the present invention;

도 2 는 성형용 드럼에 소재인 원통형체를 삽입하는 상태도로서 턴엎 블래더의 끝단부가 이완되어 외방으로 벌어져 원통형체의 삽입이 곤란하게 된 상태의 설명도2 is a diagram illustrating a state in which a cylindrical body, which is a raw material, is inserted into a forming drum, and a tip end portion of the turn-over bladder is relaxed and opened outward to make it difficult to insert the cylindrical body.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1.................... 본체1 .......................

2.................... 끝단부2 ..........

3.................... 보강재3 .......... Reinforcement

본 발명은, 턴엎 블래더 본체(1)가 수축된 상태에 있어서의 끝단부(2) 내측에 보강재(3)를 설치하는 것을 제1의 특징으로 한다. 보강재(3)는 코드지로 형성시키는 것이 바람직하며, 보강재(3)인 코드지의 코드 각도는 블래더 본체(1)를 형성시키는 코드지의 코드와 1∼30도 경사지게 형성시키는 것이 바람직하다.A first feature of the present invention is to provide the reinforcing material 3 inside the end portion 2 in the state where the turnover bladder main body 1 is contracted. The reinforcing material 3 is preferably formed of cord paper, and the cord angle of the cord paper as the reinforcing material 3 is preferably formed to be inclined with the cord of the cord paper for forming the bladder main body 1 to 1 to 30 degrees.

그리고 본 발명은 이에서 나아가, 블래더 끝단부의 직경을 끝단으로 갈수록 점점 축소시켜 끝단부가 내측으로 굽어져 있게 하는 것을 특징으로 한다. 내측으로 굽어지는 각도는 1∼30도인 것이 바람직하다.In addition, the present invention is characterized in that the end portion is bent inward by gradually reducing the diameter of the bladder end portion toward the end. It is preferable that the angle bend inward is 1-30 degrees.

이와 같이 구성된 본 발명은, 블래더의 장기 사용으로 끝단부(2)가 이완되더라도 보강재(3)가 설치된 내측부위의 이완정도가 외측부위의 이완정도보다 작아 블래더의 끝단부는 결국 외방으로 벌어지지 아니하게 되는 것이다.According to the present invention configured as described above, even when the end portion 2 is relaxed by prolonged use of the bladder, the degree of relaxation of the inner portion where the reinforcing material 3 is installed is less than that of the outer portion, and thus the end of the bladder does not open outward. No.

그리고, 본 발명은 이에서 나아가, 끝단부(2)의 직경을 끝단으로 갈수록 점점 작게형성시켰는 바, 따라서 어느 정도의 블래더 이완으로는 끝단부(2)가 외방으로 쳐들려지지 아니하게 한다.In addition, the present invention further extends the diameter of the end portion 2 toward the end, and thus the end portion 2 is not struck outward with some bladder relaxation.

이와 같이 구성된 본 발명은, 턴엎 블래더의 끝단부(2)가 외방으로 쳐들려지지 아니하게 되어 성형용 드럼에 소재인 원통형체(Band)를 삽입하는 작업에 곤란을 초래할 염려가 없게 되는 효과가 있다.The present invention configured as described above has the effect that the end portion 2 of the turn-over bladder is not struck outward and there is no fear of causing difficulty in inserting a cylindrical material (Band) into a forming drum. have.

Claims (4)

본체(1)가 수축된 상태에서 끝단부(2) 내측에 보강재(3)를 설치하여 구성되는 타이어 성형용 블래더에 있어서, 상기 보강재(3)는 코드지로 형성된 것이고, 보강재(3)인 코드지의 코드 각도는 블래더 본체(1)를 형성시키는 코드지의 코드와 1∼30도 경사지게 형성시켜서 된 것을 특징으로 하는 타이어 성형용 블래더.In the tire shaping bladder configured by installing the reinforcing material 3 inside the end portion 2 in the state in which the main body 1 is retracted, the reinforcing material 3 is formed of cord paper, and the reinforcing material 3 is a cord. The cord angle of the paper is a tire shaping bladder characterized in that the cord of the cord paper for forming the bladder body (1) is formed to be inclined 1 to 30 degrees. 삭제delete 제1항에 있어서, 블래더 끝단부의 직경을 끝단으로 갈수록 점점 축소시켜 끝단부가 내측으로 굽어져 있게 하여서 된 것을 특징으로 하는 타이어 성형용 블래더.The bladder for forming a tire according to claim 1, wherein the diameter of the bladder end portion is gradually reduced toward the end so that the end portion is bent inward. 제3항에 있어서, 블래더 끝단부의 직경이 내측으로 굽어지는 각도는 1∼30도인 것을 특징으로 하는 타이어 성형용 블래더.4. The tire shaping bladder according to claim 3, wherein the angle at which the bladder end is bent inward is 1 to 30 degrees.
KR10-2001-0073436A 2001-11-23 2001-11-23 Tire shaping bladder KR100465505B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2001-0073436A KR100465505B1 (en) 2001-11-23 2001-11-23 Tire shaping bladder

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Application Number Priority Date Filing Date Title
KR10-2001-0073436A KR100465505B1 (en) 2001-11-23 2001-11-23 Tire shaping bladder

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KR20030042691A KR20030042691A (en) 2003-06-02
KR100465505B1 true KR100465505B1 (en) 2005-01-13

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940011143A (en) * 1992-11-19 1994-06-20 윤양중 Bladder for tire vulcanization with surface reinforced with woven fiber
US5324376A (en) * 1990-07-27 1994-06-28 Russell Weimer Rubber surface non-stick ply turn-up bladder
KR950005902U (en) * 1993-08-14 1995-03-20 한국타이어제조 주식회사 Tire curing brother (Bladder)
KR960030711U (en) * 1995-03-23 1996-10-22 금호산업주식회사 Turn-up bladder for tires with reinforced outer edges
KR970028139U (en) * 1995-12-21 1997-07-24 Turnstack Bladder for Tire Forming Machine
KR970061045U (en) * 1996-05-29 1997-12-10 Turn-Up Bladder for Tire Forming Machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5324376A (en) * 1990-07-27 1994-06-28 Russell Weimer Rubber surface non-stick ply turn-up bladder
KR940011143A (en) * 1992-11-19 1994-06-20 윤양중 Bladder for tire vulcanization with surface reinforced with woven fiber
KR950005902U (en) * 1993-08-14 1995-03-20 한국타이어제조 주식회사 Tire curing brother (Bladder)
KR960030711U (en) * 1995-03-23 1996-10-22 금호산업주식회사 Turn-up bladder for tires with reinforced outer edges
KR970028139U (en) * 1995-12-21 1997-07-24 Turnstack Bladder for Tire Forming Machine
KR970061045U (en) * 1996-05-29 1997-12-10 Turn-Up Bladder for Tire Forming Machine

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Publication number Publication date
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