Invention Grant
US06832638B2 Pneumatic tire with sidewall having concave portion adjacent convex mark or convex portion adjacent concave mark
失效
具有侧壁的气动轮胎具有邻近凸起标记的凹部或与凹痕相邻的凸部
- Patent Title: Pneumatic tire with sidewall having concave portion adjacent convex mark or convex portion adjacent concave mark
- Patent Title (中): 具有侧壁的气动轮胎具有邻近凸起标记的凹部或与凹痕相邻的凸部
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Application No.: US09988768Application Date: 2001-11-20
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Publication No.: US06832638B2Publication Date: 2004-12-21
- Inventor: Toshiro Oyama
- Applicant: Toshiro Oyama
- Priority: JP2000-328750 20001027
- Main IPC: B60C1302
- IPC: B60C1302

Abstract:
A pneumatic tire, in which a concave portion adjacent to a convex mark is provided on a surface of a sidewall portion, and a ratio of a volume v of the concave portion to a volume V of the convex mark is set as: 0.8V≦v≦1.2V, alternatively, a convex portion adjacent to a concave mark is provided on the surface of the sidewall portion, and a ratio of a volume w of the convex portion to a volume W of the concave mark is set as: 0.8W≦w≦1.2W, thus suppressing a bend of a carcass layer located under a mark spot of the sidewall portion, and making it possible to maintain a carcass line approximately uniformly on a circumference thereof.
Public/Granted literature
- US20020074071A1 Pneumatic tire Public/Granted day:2002-06-20
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