| 摘要 |
PURPOSE: To enable positive assembly work over a long period of time by actuating only a cam lever engaged with a specified cam by the rotation of a control shaft to connect the connecting means of a clutch lever and a driving lever to each other, and oscillating only a specified oscillating arm. CONSTITUTION: When a control shaft 19 is rotated by a specified angle, a selected cam 20 guides the other end side cam roller 24 of a cam lever 23 to the bottom part of a cam groove 21. Then the cam lever 23 presses the one-end side cam roller 25 around a supporting shaft 22 onto the driving lever 13 side. The cam roller 25 thereby presses a clutch lever 15 to the driving lever 13 so as to connect the connecting piece 14 of the driving lever 13 to the cutout 17 of a clutch lever 15. At this time, the cam lever 23 is positively oscillated by the specified quantity by a slide groove 18 and the cam groove 21 and also energized to the clutch lever side by a spring 27, so that the connecting piece 14 is positively connected to the cutout 17, and there is no play generated between them. |
