Title:
MANUFACTURING METHOD OF PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2015208974
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a pneumatic tire which can suppress the deformation of a carcass layer at vulcanization.SOLUTION: When molding a green tire G, thin-thickness parts 14U are formed at a position corresponding to a circumferential center position of a lag groove 14 in a tire T after the vulcanization of an unvulcanized cap tread rubber layer 11U, and a gauge R in a circumferential center position between the thin-thickness parts 14U which are adjacent at the unvulcanized cap tread rubber layer 11U in a circumferential direction, and a gauge L in the thin-thickness part 14U are set so as to satisfy a relationship of 0.4×D≤R-L≤D with respect to a groove depth D of the lag groove 14.
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Inventors:
KATO YOSHITAKA
Application Number:
JP2014093693A
Publication Date:
November 24, 2015
Filing Date:
April 30, 2014
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD
International Classes:
B29D30/58
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Takayoshi in the daytime
Shinichi Ogawa
Takashi Noguchi
Masao Sakaizawa
Kenji Sato
Isao Hirai
Takayoshi in the daytime
Shinichi Ogawa
Takashi Noguchi
Masao Sakaizawa
Kenji Sato
Isao Hirai