Original document(8 pages)  中文版
    The bicycle retains the human body adaptability of existent bicycle. The diameter of the chain wheel is not changed. As compared with the pedal crank of existent bicycle the invented pedal crank is lengthened by 1/2. Besides, the flywheel, Chain cable, pulley and positive stop are added. As compared with existent bicycle it can save labour by 30%, and can speed up by 30%.
Application Number
申请号		 95106989 Application Date
申请日		 1995.07.20
Title 名称 Bicycle with long crank
Publication Number
公开号		 1123237 Publication Date
公开日		 1996.05.29
Approval Pub. Date Granted Pub. Date
International Classification 分类号 B62M1/04
Applicant(s) Name
申请人		 Huang Yucheng
Address 地址 017000
Inventor(s) Name 发明人
Attorney & Agent 代理人

  
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