METHOD FOR MANUFACTURING A TIRE

• Main Authors: FUJIEDA YASUHIKO, MITAMURA HISASHI
• Format: Patent
• Language: English; Korean
• Published: 15.06.2001
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE: To sufficiently decrease deviation of the supporting center of a green tire when it is carried into a vulcanizing machine. CONSTITUTION: When a green tire 4 is carried into a mold of a vulcanizing machine 1 in a vulcanization process and it is vulcanization-molded after the green tire 4 is molded on a bladder 20 in a molding process, from the time when the green tire 4 is molded to the time when it is carried into the mold of the vulcanizing machine 1, while the top bead part 4c' and the bottom bead part 4c of the green tire 4 are held by means of the bladder 20 held under a hermetic condition by means of a top ring 19 and a bottom ring 12, they are connected with each other and are fixed together and compressed gas is fed into the bladder 20 positioned in the inner space of the green tire 4 and it is expanded. 생타이어가 성형단계에서 블래더상에서 성형되고 그 다음에 생타이어를 가황성형시키기 위하여 가황단계내에서 가황기의 몰드내로 이송될 때에, 생타이어의 상부 비드 및 하부 비드는 성형된 생타이어가 가황기의 몰드 내부로 이송될 때 까지 상부링과 하부링에 의해서 기밀상태로 유지된 블래더에 의해서 유지됨에 따라 센터 포스트를 통하여 연결고정되고 압력 가스는 생타이어의 내부 공간을 팽창된 상태로 두기 위해 생타이어의 내부 공간에 위치된 블래더내로 봉입된다. 따라서, 생타이어의 변형이 방지될 수 있다. 따라서, 생타이어가 가황기에 셋팅되었을 때, 생타이어의 지지중심부의 어긋남이 충분히 감소될 수 있다.