Title:
TIRE
Document Type and Number:
Japanese Patent JP2014189100
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a tire in which brake performance and drive performance are improved in both of a snow road and a dry road.SOLUTION: Three or more land parts are formed in a tread by circular main grooves 1, and a pair of land parts positioning at the outermost sides is specified as outside land parts S and land parts other than the outside land parts are specified as central land parts C. At the outside land parts, provided are shoulder sipes 3s both edges of each of which in the longitudinal direction are terminated in the land part, and at the shoulder sipe, a bending part which is bent to the sipe width direction at least at a part of the depth direction is formed continuously over the whole length in the sipe longitudinal direction. At the central land parts, provided are center sipes 3c both edges of each of which open at the circular direction grooves or other grooves. At the center sipes, bending parts which are bent to the sipe width direction at least at a part of the sipe depth direction are formed continuously in the sipe longitudinal direction, and flat surface parts extending vertically to the tread surface form flat surface areas connecting to at least one side of the sipe longitudinal direction of bending areas.
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Inventors:
TOMITA TATSUYA
Application Number:
JP2013064936A
Publication Date:
October 06, 2014
Filing Date:
March 26, 2013
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
B60C11/12; B60C11/04
Domestic Patent References:
| JP2012162247A | 2012-08-30 | |||
| JP4316452B2 | 2009-08-19 |
Foreign References:
| WO2006022120A1 | 2006-03-02 |
Attorney, Agent or Firm:
Kenji Sugimura
Kazuyuki Tomita
Yusuke Yamaguchi
Kazuyuki Tomita
Yusuke Yamaguchi
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