Title:
PNEUMATIC TIRE FOR MOTORCYCLE
Document Type and Number:
Japanese Patent JP2017030565
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve durability while maintaining steering stability of a tire.SOLUTION: In a reference state, when a region in a tire width direction in a step face of a tread, sandwiched between a position in the tire width direction of the step face of the tread separated by 50% of a half width of a periphery length of the step face of the tread along the periphery of the step face of the tread from a tire equator surface toward an end of the tread and a position in the tire width direction of the step face of the tread separated by 82% of the half width, is set as an intermediate region A, the intermediate region A in each half part of a tire is provided with a circumferential groove 1 continuing in a tire circumference direction and a crossing groove extending to cross the circumferential groove 1. At least one of crossing portions J crossing the crossing groove of the circumferential groove 1 has a raised part r which is adjacent in the tire circumference direction to the crossing portions J and smaller in a groove depth than the other part of the circumferential groove.SELECTED DRAWING: Figure 2
Inventors:
KAJIMOTO KATSUHIKO
Application Number:
JP2015152750A
Publication Date:
February 09, 2017
Filing Date:
July 31, 2015
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
B60C11/03; B60C11/13
Domestic Patent References:
| JPH11198609A | 1999-07-27 | |||
| JPS5591407A | 1980-07-11 | |||
| JPH05169922A | 1993-07-09 | |||
| JP2015044527A | 2015-03-12 | |||
| JPS5835881B2 | 1983-08-05 |
Foreign References:
| US4289182A | 1981-09-15 | |||
| WO2015029861A1 | 2015-03-05 |
Attorney, Agent or Firm:
Kenji Sugimura
Kazuyuki Tomita
Yamaguchi Yusuke
Kazuyuki Tomita
Yamaguchi Yusuke