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:
Sep. 06, 2016
Filed:
Sep. 27, 2013
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Yosuke Matsuda, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, JP;
Abstract
A pneumatic tire includes a tread portion provided with a pair of center main grooves to define a center portion therebetween, a pair of shoulder main grooves arranged axially outside the center main grooves to define a middle portion between the center and shoulder main grooves, and middle lateral grooves to divide the middle portion into middle blocks. Each center main groove extends in a zigzag manner including inclined long sides and inclined short sides alternately arranged in a circumferential direction of the tire. The center portion is provided with at least six center sipes within a circumferential region corresponding to a pitch of middle lateral grooves. Each middle block has a circumferential length of 85% to 95% the pitch, and is provided with at least one middle sipe. The number of middle sipe on each middle block is five or less.