发明申请
- 专利标题: Multi-Speed Sprocket Assembly
- 专利标题(中): 多速链轮组装
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申请号: US11683377申请日: 2007-03-07
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公开(公告)号: US20070213155A1公开(公告)日: 2007-09-13
- 发明人: Markus Reiter , Frank Schmidt
- 申请人: Markus Reiter , Frank Schmidt
- 申请人地址: DE Schweinfurt
- 专利权人: SRAM Deutschland GmbH
- 当前专利权人: SRAM Deutschland GmbH
- 当前专利权人地址: DE Schweinfurt
- 优先权: DE102006010498.6 20060307
- 主分类号: F16H55/30
- IPC分类号: F16H55/30 ; F16H55/12
摘要:
A multi-speed sprocket assembly is suggested, including at least two sprockets, with both sprockets having at least one common upshift transitional region in which, when the chain is displaced from the smaller sprocket to the larger sprocket for the purpose of shifting gears, the chain leaves the smaller sprocket, with a trailing tooth of the smaller sprocket being the last to engage between a trailing link plate pair of the chain, and moves onto the larger sprocket, with a leading tooth of the larger sprocket either being the first to engage between a first outer link plate pair or being located adjacent to a first inner link plate pair, and with at least the larger sprocket having in its upshift transitional region a double spacewidth created by omitting a tooth, which is immediately followed by the leading tooth. Only one chain link crossing from the smaller sprocket to the larger sprocket is located between the trailing chain link and the leading chain link. The chain roller of the link connection between the crossing chain link and the trailing chain link is located directly across from a rear tooth flank of the trailing tooth of the smaller sprocket. The leading tooth cooperates with a circumferential surface of a link plate of the crossing chain link using its front tooth flank, with the leading tooth being in contact with either the inner surface of an outer link plate or with the outer surface of an inner link plate of the leading chain link. In the region of the double spacewidth, the larger sprocket is embodied in such a way that the crossing chain link comes into contact with the larger sprocket only in the region of the leading tooth.
公开/授权文献
- US07846048B2 Multi-speed sprocket assembly 公开/授权日:2010-12-07
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