| 摘要 |
PROBLEM TO BE SOLVED: To simplify a structure of and reduce the number of parts of a derailleur of a transmission for bicycle, and accordingly, of the transmission. SOLUTION: A bicycle comprises a crank shaft 11, and a transmission T having a derailleur 60. The derailleur 60 comprises a derailleur shaft 61, a derailleur arm to be supported by the derailleur shaft 61, and a guide pulley which is rotatably supported by the derailleur arm, and with which a chain 48 to be changed to be engaged is windingly engaged between driven sprockets 41-47 to constitute a driven sprocket body 40. The transmission T has a case 20 coupled with a bicycle frame. The derailleur 60 is accommodated in the case 20, and the derailleur shaft 61 is supported thereby. COPYRIGHT: (C)2005,JPO&NCIPI
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