| 摘要 |
PURPOSE:To make the whole device compact by driving advance, descent, ascent and retreat operations of the carrying arm in this order successively by reciprocation of a driving means. CONSTITUTION:The device consists of a guide 1, the first slider 2 that slides in the horizontal direction, a rotatable pinion 6, the first rack 8 that engages with it and is slidable in the horizontal direction on the first slider 2, the second rack 10 that engages with the pinion 6, the second slider 9 fixed in the vertical direction and slidable in the vertical direction on the first slider 2, a coil spring 12 that energize it to the first slider 2, air cylinders 16, 17 having fixed stroke and reciprocate the first rack 8 in the horizontal direction, a stopper 19 that limits sliding stroke of the first slider 2 smaller that the fixed stroke of air cylinders 16, 17 and a carrying arm 23 that can attach and detach the second slider 9. |
