| 摘要 |
PURPOSE:To simplify the mechanism and to make the size of device small, by aligning an assisting lever and an index cam friction-coupled and turned with the index cam through lead-out movement, and returning them to reset position. CONSTITUTION:When the playing is finished and a driving plate 51 is turned clockwise with lead-out, a driving cam 51c turns an assiting lever 53 with a pin 53b. A reset spring 56 and a driving cam 51c in contact with the index cam 54 arranged the index cam 54 and the lever 53. The index cam 54 and the lever 53 are friction-coupled coaxially. Then, when the cam 51c is detached from the pin 53b of the lever 53, the index cam 54 and the lever 53 are returned to the reset position with the activation of a reset spring 56. Thus, the mechanism is simplified and the size of device is made small. |
