Title:
TIRE VULCANIZING DEVICE AND TIRE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2010/053112
Kind Code:
A1
Abstract:
The temperature in a bladder of a tire vulcanizing device is highly uniformly distributed and a local damage to the bladder is minimized.
A bladder (20) is inflated in a green tire contained in a vulcanizing mold, and steam (S) is ejected from a nozzle opening (43) toward the bladder (20) to supply the steam into the bladder (20). A diffusing member (44) is provided in a tilted orientation between the nozzle opening (43) and the bladder (20). The diffusing member (44) blocks the flow of the steam (S) ejected from the nozzle opening (43) and flowing toward the bladder (20) and diffuses the steam (S) by reflecting the steam (S) toward a predetermined direction in the bladder (20). The diffusing member (44) diffuses the steam (S) to supply the steam into the bladder (20), preventing the steam (S) from being ejected and directly impinged onto the bladder (20), and heats the green tire by the steam (S) to advance the vulcanization and molding.
Inventors:
YANO, Masashi (1-1 Ogawa Higashi-cho 3-chome, Kodaira-sh, Tokyo 31, 〒1878531, JP)
Application Number:
JP2009/068887
Publication Date:
May 14, 2010
Filing Date:
November 05, 2009
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 東京都中央区京橋一丁目１０番１号 Tokyo, 〒1048340, JP)
株式会社ブリヂストン (〒40 東京都中央区京橋一丁目１０番１号 Tokyo, 〒1048340, JP)
International Classes:
B29C33/04; B29C35/04; B29L30/00
Attorney, Agent or Firm:
NEMOTO, Keiji (Eishin Patent Office, Pros Nishi-shimbashi bldg.4F 4-3, Nishi-shimbashi 2-chome, Minato-k, Tokyo 03, 〒1050003, JP)