METHOD OF MANUFACTURING RUN-FLAT TIRE

Title:

METHOD OF MANUFACTURING RUN-FLAT TIRE

Document Type and Number:

WIPO Patent Application WO/2006/095735

Kind Code:

A1

Abstract:

A method of manufacturing a run-flat tire capable of manufacturing a run-flat tire with excellent uniformity due to its less occurrence of eccentricity than in conventional methods by simple facility and steps. The method comprises a step for disposing an inner liner rubber (19), reinforcement rubber members (18) reinforcing side wall parts on both sides, and a carcass ply (14) at the prescribed outer peripheral positions of a molding drum, a step for disposing a pair of first beads (1a) and bead fillers (12) and toroidally deforming the inside of the first bead (1a), a step for curling up and stamping the end part (14b) of the carcass ply (14), a step for stamping rubber members (13a) and (13b) forming annular swelled parts on the sides of the bead filler (12) of a toroidal formed product, and a step for forming second beads (1b) by spirally stamping cords (BW) on the formed product while rotating the formed product after that stamping about the axis thereof.

Inventors:

SEGAWA MASAHIRO (JP)
HANA KAZUTAKA (JP)

Application Number:

PCT/JP2006/304377

Publication Date:

September 14, 2006

Filing Date:

March 07, 2006

Export Citation:

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Assignee:

TOYO TIRE & RUBBER CO (JP)
SEGAWA MASAHIRO (JP)
HANA KAZUTAKA (JP)

International Classes:

B29D30/30; B60C15/02; B60C15/06; B60C17/00

Domestic Patent References:

WO2006028083A1	2006-03-16
WO2002002354A1	2002-01-10

Foreign References:

JP2006044611A	2006-02-16
JPS5082701A	1975-07-04
JP2003191722A	2003-07-09
JP2003514706A	2003-04-22
US4061172A	1977-12-06
DE2715105A1	1977-10-13
US20040154720A1	2004-08-12
US4365659A	1982-12-28
JPS5082701A	1975-07-04
JP2003191722A	2003-07-09
JP2003514706A	2003-04-22

Other References: