发明公开
EP2567887A2 Right crank arm assembly for a bicycle and crank arm and front sprocket thereof
有权
一种用于自行车和曲柄臂和前链轮为右曲柄臂组件
- 专利标题： Right crank arm assembly for a bicycle and crank arm and front sprocket thereof
- 专利标题（中）： 一种用于自行车和曲柄臂和前链轮为右曲柄臂组件
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申请号： EP12195551.2申请日： 2007-07-30
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公开(公告)号： EP2567887A2公开(公告)日： 2013-03-13
- 发明人: Valle, Maurizio , Pasqua, Paolo
- 申请人： Campagnolo S.r.l.
- 申请人地址： Via della Chimica, 4 36100 Vicenza (VI) IT
- 专利权人： Campagnolo S.r.l.
- 当前专利权人： Campagnolo S.r.l.
- 当前专利权人地址： Via della Chimica, 4 36100 Vicenza (VI) IT
- 代理机构： Castiglia, Paolo
- 优先权： ITMI20061549 20060803
- 主分类号： B62M9/10
- IPC分类号： B62M9/10
摘要：
A right crank arm assembly (1) for a bicycle, comprises a right crank arm (5) and at least one front sprocket (10) coupled with the crank arm at at least one coupling portion (44) of the crank arm. The front sprocket (10) has an inner side adapted, in use, to face towards the frame of the bicycle and an outer side opposite the inner side. The assembly (1) comprises at least one first crank arm element (30) which acts in contact with the front sprocket (10) on one of said sides and at least one second crank arm element (35) which acts in contact with the front sprocket (10) on the other of said sides. The contact action of the crank arm elements on the two opposite sides of the front sprocket prevents the twisting deformation of the front sprocket during pedalling. Such a deformation would cause a reduction in the transmission efficiency of the right crank arm assembly.
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