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Title:
PNEUMATIC TIRE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/049788
Kind Code:
A1
Abstract:
Provided are a pneumatic tire in which snow performance can be improved at the same time that cavernous resonance is reduced on the basis of a sound-absorbing material, and a method for manufacturing the pneumatic tire. A sound-absorbing material (6) is secured, along a tire circumference direction, to the inner surface of a tread section (1) via an adhesive layer (7). The thickness of the sound-absorbing material (6) is 20 mm or greater, the hardness of the sound-absorbing material (6) is 80 N/314 cm2 to 150 N/314 cm2, the tensile strength of the sound-absorbing material (6) is 90 kPa or greater, and the rupture elongation of the sound-absorbing material (6) is 130% or greater. The JIS hardness of tread rubber (11) in the tread section (1) is 50-68, and a land section formed in the tread section (1) has a plurality of sipes.

Inventors:
HOSHIBA Takashi (Hiratsuka Factory, 2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
Application Number:
JP2018/032398
Publication Date:
March 14, 2019
Filing Date:
August 31, 2018
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:
B60C5/00; B29D30/08
Foreign References:
JP2008050408A2008-03-06
JP2015128893A2015-07-16
JP2005138760A2005-06-02
JP2008044574A2008-02-28
JP2005212524A2005-08-11
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (37 Kowa Building, 4-5 Tsukiji 1-chome, Chuo-k, Tokyo 45, 〒1040045, JP)
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