Title:
MANUFACTURING METHOD FOR PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2011/105390
Kind Code:
A1
Abstract:
Provided is a manufacturing method for a pneumatic tire that includes a process in which a raw cover (2) for the tire is formed, and a vulcanization process in which said raw cover (2) is inserted into a die (3) and subjected to vulcanization molding. With the raw cover (2) inserted into the die (3), a sidewall rubber edge (E), which is a boundary part between a bead chafer (13) and a sidewall rubber (12) that appears on an outer surface (2a) of the raw cover, is located further to the inside of the tire in the radial direction than an inner core point (P1), which is the intersection point between the outer surface (2a) of the raw cover and an axial line (L1) that passes through a bead core (7) on the inner edge of the tire in the radial direction. The manufacturing method is characterized in that an outer edge (15Bo) of a folded part (15B) of an insulation rubber (15) passes in between a folded part (9b) of a carcass ply (9a) and the sidewall rubber (12), and terminates further to the outside of the tire in the radial direction than the sidewall rubber edge (E).
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Inventors:
ADACHI Yukishige (6-9, Wakinohama-cho 3-chome, Chuo-ku, Kobe-sh, Hyogo 72, 〒6510072, JP)
Application Number:
JP2011/053897
Publication Date:
September 01, 2011
Filing Date:
February 23, 2011
Export Citation:
Assignee:
SUMITOMO RUBBER INDUSTRIES,LTD. (6-9 Wakinohama-cho 3-chome, Chuo-ku Kobe-sh, Hyogo 72, 〒6510072, JP)
住友ゴム工業株式会社 (〒72 兵庫県神戸市中央区脇浜町３丁目６番９号 Hyogo, 〒6510072, JP)
住友ゴム工業株式会社 (〒72 兵庫県神戸市中央区脇浜町３丁目６番９号 Hyogo, 〒6510072, JP)
International Classes:
B29D30/30; B29D30/72; B60C5/14; B60C13/00
Attorney, Agent or Firm:
SUMITOMO Shintaro (2-26, Nishinakajima 4-chome Yodogawa-ku, Osaka-sh, Osaka 11, 〒5320011, JP)
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Claims:
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