| 摘要 |
Herein disclosed is a transmission gear for transmitting two rotary motions from a driving mechanism to a working mechanism. The transmission gear comprises a cylindrical support member (11), a flexible cylindrical member (12) fixedly supported by the cylindrical support member (11), first and second input shaft members (13 and 14), and first and second output shaft members (15 and 16). The first and second input shaft members (13 and 14) have non-circular peripheral portions (13a and 14a), respectively. The first and second output shaft members (15 and 16) have internal circular portions (15a and 16a) radially opposite to and spaced apart from the non-circular peripheral portions (13a and 14a) of the first and second input shaft members (13 and 14), respectively. The flexible cylindrical member (12) interposes between the non-circular peripheral portions (13a and 14a) ofthe first and second input shaft members (13 and 14) and the internal circular portions (15a and 16a) of the first and second output shaft members (15 and 16). The flexible cylindrical member (12) further having a buffer portion (12e) between the first and second transformable intervening portions (21 and 22) for allowing the first and second transformable intervening portions (21 and 22) to transform independently of each other without interference, thereby transmitting the rotary motions from the first and second input shaft members (13 and 14) to the first and second output shaft members (15 and 16), respectively, in independent relationship to each other. <IMAGE> |
