Title:
空気入りタイヤの製造方法
Document Type and Number:
Japanese Patent JP4944239
Kind Code:
B1
Abstract:
A method for manufacturing a pneumatic tire having an inner liner on an inner side of the tire, molding of a green tire including: (a) an assembly step of bonding the inner liner and an unvulcanized rubber sheet with end portions thereof in a width direction being displaced from each other in the range of 50 mm to 500 mm in the width direction to manufacture a laminate; (b) a cutting step of cutting the laminate to have a constant length corresponding to a width of a drum to manufacture a cut sheet; and (c) a joining step of winding the cut sheet on entire circumference of the drum such that a cut surface thereof extends in a circumferential direction of the drum and the inner liner is disposed on an inner surface side, and joining the end portions of the inner liner and joining the end portions of the unvulcanized rubber sheet such that positions of the joined end portions are displaced by a constant distance, the inner liner being a composite layer of a first layer containing a styrene-isobutylene-styrene block copolymer and having a thickness of 0.05 mm to 0.6 mm and a second layer disposed on a side of the unvulcanized rubber sheet, made of a thermoplastic elastomer, and having a thickness of 0.01 mm to 0.3 mm.
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Inventors:
Mutsugi Sugimoto
Application Number:
JP2010256727A
Publication Date:
May 30, 2012
Filing Date:
November 17, 2010
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
B29D30/30; B60C5/04; B60C5/14; B60C9/04
Domestic Patent References:
| JP2010005986A | ||||
| JP2010167829A | ||||
| JP2008024215A | ||||
| JP2010100083A |
Attorney, Agent or Firm:
Fukami patent office