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Patent Searching and Data


Title:
TIRE AND TIRE MOLD
Document Type and Number:
WIPO Patent Application WO/2017/183369
Kind Code:
A1
Abstract:
A tire is provided that can be efficiently manufactured when a block is provided in which sipes are formed, and in which performance on icy/snowy roads and non-icy/snowy roads can be balanced at a higher level. Sipes 100A of a pneumatic tire 10A according to the present invention include convex sections 150. The convex sections 150 have: straight line portions 152 extending in a straight line in a prescribed direction; first inclined portions 151 inclined so as to widen outward in the prescribed direction more than one end of the straight line portions 152; and second inclined portions 153 inclined so as to widen outward in the prescribed direction more than the other end of the straight line portions 152. A cycle that is the dimension occupied by the convex sections 150 in the prescribed direction is 0.8-2.0 times the sipe depth, which is the length from the tread surface of the block 20A of a sipe 100A to the bottom of the sipe 100A.

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Inventors:
KAJI YOSHIO
MATSUYAMA RYUNOSUKE
KATAYAMA SHINSAKU
Application Number:
PCT/JP2017/010644
Publication Date:
October 26, 2017
Filing Date:
March 16, 2017
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C11/12; B29C33/02; B29C35/02
Foreign References:
JP2004210043A2004-07-29
JP2015205614A2015-11-19
JP2014189100A2014-10-06
JPS63235107A1988-09-30
JP2007055285A2007-03-08
JPH1178432A1999-03-23
JP2016084482A2016-05-19
JP2016084487A2016-05-19
JP2016084489A2016-05-19
Other References:
See also references of EP 3446891A4
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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