发明授权
- 专利标题： Variable ratio drive system
- 专利标题（中）： 变比驱动系统
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申请号： US09580484申请日： 2000-05-30
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公开(公告)号： US06332852B1公开(公告)日： 2001-12-25
- 发明人: John Allard
- 申请人： John Allard
- 主分类号： F16H910
- IPC分类号： F16H910
摘要：
A variable ratio drive system including at least one variable diameter sprocket is described herein. The variable diameter sprocket includes a support and at least three radially movable sprocket portions mounted to the support. A diameter changing mechanism is provided to selectively move the sprocket portions.
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