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Title:
METHOD FOR MANUFACTURING PNEUMATIC TIRE, AND PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2010052205
Kind Code:
A
Abstract:

To provide a method capable of surely winding a carcass ply to a bead core without impairing molding workability in the molding work of a bead with a structure having the carcass ply wounded along the periphery of the bead core.

The method for manufacturing a pneumatic tire comprises a step for molding a carcass ply 2 having winding parts at both ends in the axial direction, a step for disposing the bead core 5 inside the winding part 2a of the carcass ply 2, a step for sticking stiffener rubber 7 to the central side in the axial direction rather than a bead core 5 arrangement position on the carcass ply 2, a step for winding the winding part 2a of the carcass ply 2 wound around the periphery of the bead core 5 by locking the bead core 5, a step for crimping the winding part 2a of the carcass ply 2 wound around the bead core 5 to the bead core 5, and a step for erecting the stiffener rubber 7 by inflating the carcass ply 2 toroidally and sandwiches the winding part 2a of the carcass ply 2 between the stiffener rubber 7 and the bead core to be stuck.


Inventors:
MATSUMOTO TAICHI
Application Number:
JP2008000217812
Publication Date:
March 11, 2010
Filing Date:
August 27, 2008
Export Citation:
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Assignee:
BRIDGESTONE CORP
International Classes:
B29D30/32; B60C15/00; B60C15/06
Domestic Patent References:
JP2008036982A2008-02-21
JP2006076054A2006-03-23
JP2000225653A2000-08-15
JP2002321289A2002-11-05
Attorney, Agent or Firm:
杉村 憲司
来間 清志
澤田 達也
冨田 和幸