Invention Grant
- Patent Title: Pneumatic tire
- Patent Title (中): 气动轮胎
-
Application No.: US13046613Application Date: 2011-03-11
-
Publication No.: US08739845B2Publication Date: 2014-06-03
- Inventor: Hiroshi Furusawa
- Applicant: Hiroshi Furusawa
- Applicant Address: JP
- Assignee: The Yokohama Rubber Co., Ltd.
- Current Assignee: The Yokohama Rubber Co., Ltd.
- Current Assignee Address: JP
- Agency: Thorpe North & Western LLP
- Priority: JP2010-055401 20100312
- Main IPC: B60C11/11
- IPC: B60C11/11

Abstract:
A pneumatic tire including, on a tread surface, rib-like land portions partitioned by a plurality of main grooves and/or a plurality of block-like land portions partitioned by lug grooves extending in a tire width direction, wherein sipes or small holes are provided in the land portions, multiple protrusions are disposed having a height that is less than a depth of the sipes or small holes, and the multiple protrusions are disposed so as to form a shape wherein a flow path width increases at a flow path convergence point where flow paths formed in a mesh-like shape between the protrusions converge from at least three directions, and a ratio of an area of the multiple protrusions to an area of a block-like land portion is 0.5 or greater and 0.9 or less.
Public/Granted literature
- US20110220256A1 PNEUMATIC TIRE Public/Granted day:2011-09-15
Information query