TIRE VULCANIZING DEVICE AND TIRE MANUFACTURING METHOD

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 (JP)

Application Number:

PCT/JP2009/068887

Publication Date:

May 14, 2010

Filing Date:

November 05, 2009

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)
YANO MASASHI (JP)

International Classes:

B29C33/04; B29C35/04; B29L30/00

Foreign References:

JP2006021420A	2006-01-26
JPH07227852A	1995-08-29
JPS57185134A	1982-11-15