Invention Grant
US08770241B2 Pneumatic tire with tread having wave shaped circumferential groove
有权
具胎面的气动轮胎具有波浪形圆周槽
- Patent Title: Pneumatic tire with tread having wave shaped circumferential groove
- Patent Title (中): 具胎面的气动轮胎具有波浪形圆周槽
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Application No.: US13118706Application Date: 2011-05-31
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Publication No.: US08770241B2Publication Date: 2014-07-08
- Inventor: Masahiro Ebiko , Kenichiro Endo , Takumi Morito , Hiroshi Tokizaki , Hiroyuki Kojima , Kensuke Saitou
- Applicant: Masahiro Ebiko , Kenichiro Endo , Takumi Morito , Hiroshi Tokizaki , Hiroyuki Kojima , Kensuke Saitou
- Applicant Address: JP Tokyo
- Assignee: The Yokohama Rubber Co., Ltd.
- Current Assignee: The Yokohama Rubber Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Global IP Counselors, LLP
- Priority: JP2010-028578 20101130; JP2010-269252 20101202
- Main IPC: B60C11/04
- IPC: B60C11/04 ; B60C11/13 ; B60C11/03 ; B60C13/00

Abstract:
A pneumatic tire includes a plurality of circumferential grooves and a first land portion. The circumferential grooves extend continuously in a tire circumferential direction. The first land portion extends in the tire circumferential direction between a pattern end and one of the circumferential grooves in a shoulder region located outside the circumferential grooves in a tire width direction. The first land portion has first lug grooves extending from the pattern end in the tire width direction and closed without communicating with the circumferential grooves are arranged in the tire circumferential direction. At least one circumferential groove is wave-shaped with a constant groove width in the tire width direction at a tread surface and formed in a wave shape in the circumferential direction at the tread surface and groove bottom. The wave-shaped circumferential groove has a shorter cycle length of waves at the groove bottom than at the tread surface.
Public/Granted literature
- US20120132333A1 PNEUMATIC TIRE Public/Granted day:2012-05-31
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