Universal Frame for Electric Bikes and Human Powered Bicycles
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United States of America Patent
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Mar 25, 2014
Grant Date -
Mar 27, 2014
app pub date -
Sep 26, 2012
filing date -
Sep 26, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a universal frame for electric bikes and human powered bicycles, the frame body of the universal frame is consisted of a top tube, a down tube, a seat tube, two seat stays and two chain stays, wherein a holder is welded on the junction of the down tube, the seat tube and the chain stays, the holder is used to fasten on a bottom bracket shell with different specifications according to usage requirements. By the composition of the above elements, the present invention may be provided to assemble the main-shaft-chain wheel set of electric bikes or human powered bicycles, to thereby simplify the process, reduce the amount of inventories and achieve the convenience of universal interchangeability.
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