| 摘要 |
PURPOSE:To prevent the occurrence of oscillation and vibration on a crank side by connecting a crank rotatably supported on a support with one end of a lever, which is rotatably supported on the support and has a lever roller on the other end thereof, with a rod. CONSTITUTION:A crank 6 is trailed, in free oscillation at a shaft supporting point O1 and a lever 4 is rotatably supported in free oscillation. The lower end of the lever 6 is connected with the front arm end of the lever 4 through a rod 10. Further, on the upper arm end of the lever 4, a lever roller 29 is provided and a tension spring 17 is tensioned. When the crank 6 receives a movable inertia force to a spindle 22 side, the lever 4 is supported by a stopper 24, with a connecting point J2 being located over a straight line X-X, thus the inertia force functioning as only a pushing force to the supporting point O so as not to effect on the spring 17. Accordingly, since there exists no electric deformable member between the connecting points J1-O, there occurs no vibration on the crank 6. |
