| 摘要 |
The device includes a rigid disk (1) provided with a planar tooghed ring portion (1a), which is meshed with a sector of a toothed ring portion (5a) of a flexible disk (23) angularly secured to the driven shaft (5b). The pitch of the ring portion (5a) is slightly different from the one of the ring portion (1a). The driving shaft (3) is coaxial with the shaft (5b) and is angularly secured to another disk (2) parallel to the rigid disk (1) and carrying a roller (4) which causes sequentially a sector of the toothed wing portion (5a) to yield parallely to the axis of the two shafts (3) and (5b). |
