Title:
空気入りタイヤ
Document Type and Number:
Japanese Patent JP5626383
Kind Code:
B2
Abstract:
A pneumatic tire is mounted on a vehicle so a first side in a tire width direction corresponds to a vehicle outer side. A tread surface of the pneumatic tire has four circumferential main grooves (52, 54, 56, 58) extending in a tire circumferential direction and five land portions (60, 62, 64, 66, 68) partitioned by the circumferential main grooves. A ratio W 2 /W 1 ranges 4 to 5 when W 1 is defined as a groove width of a first circumferential main groove (58) that is located at a first position when viewed from the first side and W 2 is defined as a groove width of a second circumferential main groove (54) that is located at a second position when viewed from the first side, and a ratio S in /S out ranges 1.1 to 1.2 when, in a region of the tread surface which interposes the tire centerline (CL), S out is defined as a groove surface area ratio in a region on the first side and S in is defined as a groove surface area ratio in a region on the second side. Chamfers (66b, 68c) are applied around shoulder inclined grooves (66a, 68a) provided on shoulder land portions (66, 68) on both sides.
Inventors:
須賀 勇一
Application Number:
JP2013017186A
Publication Date:
November 19, 2014
Filing Date:
January 31, 2013
Export Citation:
Assignee:
横浜ゴム株式会社
International Classes:
B60C11/03; B60C5/00; B60C11/01; B60C11/04; B60C11/13
Attorney, Agent or Firm:
Global IP Tokyo patent business corporation