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:
Jul. 07, 2015
Filed:
Nov. 27, 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 both improved partial wear resistance and improved quietness. The tire has block land portion arraysdefined on a tread portion. Between adjacent two block land portion arrayssandwiching a circumferential groove, block land portionsconstituting the block land portionsare arranged so as to be positionally displaced from each other in the tire circumferential direction, and a groove portionbetween the block land portions adjacent in the tire width direction extends obliquely with respect to the tire width direction and the tire circumferential direction. Further, in the adjacent block land portion arrays, the block land portionis adjacent to at least two block land portions by way of the groove portionbetween the block land portions adjacent in the tire width direction, and two side wallsof the adjacent block land portionhas projected lengths different from each other, the projected lengths being obtained by projecting the side walls to a line parallel to the tire circumferential direction. Yet further, the block land portionsadjacent in the tire width direction are disposed in a point-symmetric manner by way of the groove portionbetween the block land portionsadjacent in the tire width direction.