Invention Grant
- Patent Title: Pneumatic tire manufacturing method and pneumatic tire
- Patent Title (中): 气动轮胎制造方法和充气轮胎
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Application No.: US12334017Application Date: 2008-12-12
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Publication No.: US08444795B2Publication Date: 2013-05-21
- Inventor: Atsushi Tanno , Shiro Ogawa , Akira Fujita , Tomio Yamabe
- Applicant: Atsushi Tanno , Shiro Ogawa , Akira Fujita , Tomio Yamabe
- Applicant Address: JP Tokyo
- Assignee: The Yokohama Rubber Co., Ltd.
- Current Assignee: The Yokohama Rubber Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Greer, Burns & Crain, Ltd.
- Priority: JP2007-332393 20071225
- Main IPC: B29C35/00
- IPC: B29C35/00

Abstract:
Provided is a pneumatic tire manufacturing method capable of improving the productivity of pneumatic tires each having surface fasteners in its tire inner surface, and of avoiding manufacturing a pneumatic tire having a deteriorated uniformity, as well as of preventing engagement elements of each surface fastener from being crushed. Also, provided is a pneumatic tire manufactured by the pneumatic tire manufacturing method. The pneumatic tire manufacturing method according to the present invention includes the steps of, in making a green tire having two-side fasteners in its tire inner surface in its tire circumferential direction, each two-side fastener including an engagement element group on both sides: covering the engagement element groups on first sides of the two-side fasteners with a protective rubber layer made of an uncured rubber; making a cylindrical first formed body on a making drum, with the two-side fasteners covered with the protective rubber layer being intermittently attached to an inner circumferential surface of the first forming body in a circumferential direction thereof with the engagement element groups on second sides of the two-side fasteners being interposed in between; bonding the first formed body to an inner circumference of an annular second formed body by compression through expanding the first formed body into a toroidal shape, and thereby making the green tire; and curing the green tire inside a mold of a curing machine while pressing the green tire from its inside by a bladder.
Public/Granted literature
- US20090159172A1 PNEUMATIC TIRE MANUFACTURING METHOD AND PNEUMATIC TIRE Public/Granted day:2009-06-25
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