Title:
PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2016016720
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that an elasticity rate of tread rubber is high under a condition that a tire temperature is low so that a grounding surface of a block is slightly deformed to reach a friction limit, causing easily deterioration in grip performance, and the elasticity rate of the tread rubber decreases under a condition that the tire temperature is high so that the block is greatly deformed and grounding performance of a road face is deteriorated as well as deterioration in grip performance is easily caused.SOLUTION: A sipe 10 has at least two sipe parts 14 partitioned by at least one bent part 13 in a depth direction d of the sipe 10, where a dynamic storage elastic modulus (E') of a tread rubber forming a tread part 12 is equal to 20 MPa or more and at least one angle of angles α of the bent parts, angles formed by the sipe parts 14 made adjacent across the bent part 13 is between 100 and 150 degrees.SELECTED DRAWING: Figure 1
More Like This:
| WO/2002/038399 | TYRE RUNNING TREAD AND MOULDING ELEMENT OF A MOULD FOR SUCH A TREAD |
| JPH06286422 | PNEUMATIC TIRE FOR SNOW-AND-ICE-COVERED ROAD |
| JP6788385 | tire |
Inventors:
KOBAYASHI FUMITAKA
Application Number:
JP2014139968A
Publication Date:
February 01, 2016
Filing Date:
July 07, 2014
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
B60C11/12; B60C11/00
Domestic Patent References:
| JP2007015510A | 2007-01-25 | |||
| JP2000168314A | 2000-06-20 | |||
| JP2004114878A | 2004-04-15 | |||
| JP2013129325A | 2013-07-04 | |||
| JP2004238619A | 2004-08-26 | |||
| JP2005193867A | 2005-07-21 |
Foreign References:
| WO2008054023A1 | 2008-05-08 |
Attorney, Agent or Firm:
Kenji Sugimura
Kazuyuki Tomita
Osamu Suzuki
Kazuyuki Tomita
Osamu Suzuki