Invention Grant
- Patent Title: Motorcycle tire for uneven terrain
- Patent Title (中): 用于不平坦地形的摩托车轮胎
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Application No.: US13730029Application Date: 2012-12-28
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Publication No.: US09321313B2Publication Date: 2016-04-26
- Inventor: Masahiro Hikita
- Applicant: Sumitomo Rubber Industries Ltd.
- Applicant Address: JP Kobe-shi
- Assignee: SUMITOMO RUBBER INDUSTRIES LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES LTD.
- Current Assignee Address: JP Kobe-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2011-290318 20111229
- Main IPC: B60C11/11
- IPC: B60C11/11 ; B60C1/00 ; B60C11/00

Abstract:
A motorcycle tire includes a tread having shoulder blocks, and sidewalls. Each shoulder block includes a main portion and an end portion. The main portion is formed by a first crosslinked rubber composition. The end portion and the sidewalls are formed by a second crosslinked rubber composition. JIS-A hardness Ha of the main portion is greater than JIS-A hardness Hb of the end portion and the sidewalls. Difference (Ha−Hb) is greater than or equal to 5, and is not greater than 12. A ratio (H2/H1) of a height H2 from a boundary point Pb between the tread and each sidewall to a boundary point P2 between the main portion and the end portion, relative to a height H1 from the boundary point Pb to an outermost end P1 of a corresponding one of the shoulder blocks in the axial direction, is greater than or equal to 1/3.
Public/Granted literature
- US20130167992A1 MOTORCYCLE TIRE FOR UNEVEN TERRAIN Public/Granted day:2013-07-04
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