| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for substantially disabling to use a bicycle in a normal way even when a lock is broken or opened. SOLUTION: Fitting parts 11, 12 formed on a body of a bicycle and fitted parts 41, 62 formed on a main member can be abutted on and fitted to each other, and the fitting parts and the fitted parts can be separated and detached from each other. The fitting parts of the body and the fitted parts of the main member have uneven structures K12, K62 corresponding each other. The uneven structures are configured to be individual for an individual body of the bicycle, and not corresponded to and not fitted to the fitted parts of the different individual main members to prevent any theft. For example, the main member is a crank, the fitting parts on the body side are located on a side surface of a rotary cylinder of a sprocket wheel, and the fitted parts on the main member side are located on a side surface of a crankshaft. COPYRIGHT: (C)2011,JPO&INPIT
|
