Title:
TIRE MANUFACTURING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2012/008109
Kind Code:
A1
Abstract:
This tire manufacturing method and apparatus is directed at low cost, highly efficient and excellent reforming carried out on an intermediate band (31). Cylindrical forming sleeves (30) having annular grooves (32) are engaged on the outside of both axial end portions of a forming drum (11), and subsequently a carcass ply (20) is wound onto the forming drum (11), and an intermediate band (31) is formed in which both axial end portions are positioned outside of the forming sleeves (30). After that, reforming is carried out over the entire circumference by forcing the intermediate band (31) into the annular grooves (32) using disk-shaped members (39). As such, manual work by technicians is rendered unnecessary and increased production efficiency and labor savings can be achieved. Furthermore, since the intermediate band (31) is in close contact with the forming sleeves (30) during reforming, excellent reforming can be easily carried out.
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Inventors:
OGAWA, Yuichiro (Technical Center 3-1-1, Ogawahigashi-cho, Kodaira-sh, Tokyo 31, 〒1878531, JP)
Application Number:
JP2011/003783
Publication Date:
January 19, 2012
Filing Date:
July 01, 2011
Export Citation:
Assignee:
BRIDGESTONE CORPORATION (10-1, Kyobashi 1-chome Chuo-k, Tokyo 40, 〒1048340, JP)
株式会社ブリヂストン (〒40 東京都中央区京橋１丁目１０番１号 Tokyo, 〒1048340, JP)
株式会社ブリヂストン (〒40 東京都中央区京橋１丁目１０番１号 Tokyo, 〒1048340, JP)
International Classes:
B29D30/28; B29D30/32; B29D30/34
Attorney, Agent or Firm:
SUGIMURA, Kenji (36F Kasumigaseki Common Gate West, 3-2-1 Kasumigaseki, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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Claims: