| 摘要 |
A manual device includes a control lever pivoted to a hand grip for activating an activation rod so as to actuate an adjustment piece to cause two holding ends of two grasping arms to move toward each other to take hold of an object. The adjustment piece has a toothed bar. The grasping arms are provided with a toothed action end which is engaged with the toothed bar of the adjustment piece. As the adjustment piece is manually turned, the grasping arms are caused to move toward or away from each other such that the distance between the two holding ends of the two grasping arms is adjusted in accordance with the size of the object.
|
