| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electric assist bicycle in which an anti-theft effect of a battery case removably attached to a bicycle chassis frame is improved. <P>SOLUTION: The electric assistant bicycle is constituted so that a fixing device 3 having a mechanism for use in either fixing a battery case 2 to a bicycle chassis frame or releasing the battery case to the bicycle chassis frame and an operating part 4 for use in fixing or releasing the fixing device 3 are installed in a seat tube 6, and a seat post 5 is inserted into the seat tube 6 storing the fixing device 3 and the operating part 4 therein. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
