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Patent Searching and Data


Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2018/159035
Kind Code:
A1
Abstract:
The purpose of the present invention is to suppress the occurrence of separation along the edges of all chafers. A pneumatic tire 1 comprises: a carcass layer 13 that is disposed so as to enclose a bead core 11 and a bead filler 12 and be wound back on itself; a steel chafer 21 that is formed by disposing a plurality of steel cords side by side and is disposed between the carcass layer 13 and a rim fitting surface; and sub-chafers 22, 23 that are disposed between the steel chafer 21 and the rim fitting surface, and are composed of organic fibers. The height of an outer edge of the steel chafer 21 on the outer side of the bead filler 12 in the tire width direction is 0.5-0.7 times the height of a rim flange. The heights of outer edges of the sub-chafers 22, 23 on the outer side of the bead filler in the tire width direction is 0.7-0.9 times the height of the rim flange. The winding height of the carcass layer 13 is 2.5-4.5 times the height of the rim flange.

Inventors:
TAUCHI, Risa (Hiratsuka Factory, 2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
Application Number:
JP2017/042466
Publication Date:
September 07, 2018
Filing Date:
November 27, 2017
Export Citation:
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Assignee:
THE YOKOHAMA RUBBER CO., LTD. (36-11, Shimbashi 5-chome Minato-k, Tokyo 85, 〒1058685, JP)
International Classes:
B60C15/06
Domestic Patent References:
WO2015133043A12015-09-11
Foreign References:
JP2017019452A2017-01-26
JP2017013538A2017-01-19
JP2016159840A2016-09-05
JP2015116973A2015-06-25
JP2007145272A2007-06-14
JP2002219913A2002-08-06
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (Toranomon Mitsui Building, 8-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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