| 摘要 |
PURPOSE:To make it possible to operate a device with a single driving source by forwardly and backwardly turning a motor while driving a link mechanism by a one-directional clutch provided on a cam shaft, a cam and a Zeneva wheel in a mechanism where a tansfer bar vertically moves and reciprocates. CONSTITUTION:Forwardly turning a motor 60 causes a rotary shaft 18 to be forwardly turned to rotate an arm 19, while during this period a cam shaft 40 is driven via a one-directional clutch 63 to turn a cam shaft 41. A roller 44 and a link 42 in contact with the cam 41 are rocked, allowing a transfer bar 3 to be lifted. The roller 20 of the arm 19 drives a wheel 14 whose rotation rockes a rotary shaft 10 and a rocking lever 11. A roller 12 descends along a guiding longitudinal groove 13 to fit the pin of the transfer bar in the pin hole of a work and to separate the work from the positioning pin of a conveyor bench 2 while lifting the work from the conveyor bench 2. The returning motor of the bar is performed by backwardly turning the motor 60. |
