The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2014
Filed:
Nov. 10, 2009
Akira Nakamizo, Higashiyamato, JP;
Akiyoshi Shimizu, Kodaira, JP;
Akira Nakamizo, Higashiyamato, JP;
Akiyoshi Shimizu, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
Provided is a tire exhibiting improved wear resistance, partial wear resistance, and traction performance on the wet road surface. The tire has block land portion arraysdefined on a tread portion. Between two block land portion arrayslocated adjacent to each other while sandwiching a circumferential groove, a block land portionsconstituting the block land portion arrays are arrange so as to be positionally displaced from each other, and a groove portionlocated between the block land portions adjacent in the tire width direction extends obliquely with respect to tire width direction and the tire circumferential direction. At this time, a distance dbetween the block land portions adjacent in the tire width direction is shorter than a distance dbetween the block land portions adjacent in the circumferential direction. In the block land portion arraysadjacent in the tire width direction, an inclined angle α of a side wallof the block land portionlocated on the groove portionside with respect to the tire circumferential direction is larger than an inclined angle β of the other side walllocated on the opposite side to said groove portionwith respect to the tire circumferential direction.