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.

Date of Patent:
Aug. 31, 2021

Filed:

Nov. 25, 2016
Applicant:

Bridgestone Corporation, Tokyo, JP;

Inventor:

Shintaro Hayashi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C 11/04 (2006.01); B60C 11/12 (2006.01); B60C 11/03 (2006.01); B60C 11/13 (2006.01);
U.S. Cl.
CPC ...
B60C 11/04 (2013.01); B60C 11/03 (2013.01); B60C 11/0304 (2013.01); B60C 11/0306 (2013.01); B60C 11/12 (2013.01); B60C 11/1204 (2013.01); B60C 11/1384 (2013.01); B60C 2011/0344 (2013.01); B60C 2011/0372 (2013.01); B60C 2011/0381 (2013.01); B60C 2011/0383 (2013.01); B60C 2011/1209 (2013.01); B60C 2011/1213 (2013.01);
Abstract

A tire has three or more circumferential direction main grooves, a first land portion and a second land portion that are partitioned by the circumferential direction main grooves, first sipes that are provided in the first land portion, and that have a bend portion protruding in the tire circumferential direction, and whose two ends communicate respectively with the circumferential direction main grooves, second sipes that are provided in the second land portion on a virtual extension of the first sipes, and whose two ends communicate respectively with the circumferential direction main grooves, and first terminal grooves that are provided in the first land portion between first sipes, that are positioned on an outer side in a tire width direction of the first land portion and communicate with the circumferential direction main grooves, and that terminate at a position further to the outer side in the tire width direction than a position in the tire width direction of a distal end of the bend portion, wherein angle portions on an acute angle side relative to the tire circumferential direction of the first land portion facing the first sipes are chamfered.


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