| 摘要 |
PURPOSE:To improve the workability of the device in the caption by positioning an edge fixed to an inserted shaft outside or inside a rotary shaft, depending on the rotating direction of the rotary shaft, so as to make an shift of a workpiece and the like unnecessary. CONSTITUTION:The power transmission projection 10 of an inserted shaft 3 is brought into contact with the power transmission recess 6 within a rotary shaft 2 so that the rotation of the rotary shaft 2 is transmitted to the inserted shaft 3, and a mutual rotating range between both shafts 2, 3 is limited thereby. Then since the inserted shaft 3 has an axis parallel to that of the rotary shaft 2 out of the center of the rotary shaft 2, when one side of the power transmission projection 10 is in contact with one side of the power transmission recess 6, an edge 9 is positioned inside rather than the outer peripheral surface of the rotary shaft 2, and when the other side of the projection 10 is brought into contact with the other side of the recess 6 by the resilience of a spring 16, the edge 9 is positioned outside rather than the outer peripheral surface of the rotary shaft 2. Consequently, the edge 9 can be positioned according to the rotating condition of the rotary shaft 2 and the resilience of the spring 16 and also, the position of the edge 9 can be determined for each purpose of workpieces so as to improve its workability. |
