Invention Grant
- Patent Title: Pneumatic tire manufacturing method, and pneumatic tire
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Application No.: US15523600Application Date: 2015-11-04
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Publication No.: US10538047B2Publication Date: 2020-01-21
- Inventor: Masayuki Sakamoto , Takamichi Sagawa
- Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
- Applicant Address: JP Kobe-Shi, Hyogo
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Kobe-Shi, Hyogo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2014-228349 20141110
- International Application: PCT/JP2015/081044 WO 20151104
- International Announcement: WO2016/076176 WO 20160519
- Main IPC: B60C11/01
- IPC: B60C11/01 ; B29D30/08 ; B29D30/30 ; B29D30/32 ; B29D30/72 ; B60C11/00

Abstract:
A pneumatic tire manufacturing method is provided in which raw cover molding is suitably performed with no, or a minimal amount of, down-stitching in the manufacture of SOT-structure pneumatic tires; also provided is a pneumatic tire. This pneumatic tire manufacturing method involves a first cover molding step for molding a first cover having a sidewall, an inner lining, a ply, beads and a tread-side edge, a tread ring forming step for forming a tread ring having a breaker, a band and a tread center part, a shaping step for pressure-bonding the tread ring and the first cover to mold this to the shape of the raw cover, and a turn-up step for bonding the side wall to the lateral surface of the first cover, wherein the tread-side edge is formed in a position adjacent to the end of the tread center portion in the shaping step, and in the turn-up step, the tread-side edge and the tread center part are bonded together.
Public/Granted literature
- US20170313006A1 PNEUMATIC TIRE MANUFACTURING METHOD, AND PNEUMATIC TIRE Public/Granted day:2017-11-02
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