| 摘要 |
<p>An adapter for positioning and holding for instance jaw vices on column drilling machines and similar comprises on one hand a support (9) having a base part (10) and two shanks (11, 11') projecting upwardly from said base part and carrying a frame (12) at a distance above the base part, and, on the other hand, a plate (13) being located on the frame and connected to an arm (15) by means of a connecting element (14). The length of the arm is markedly larger than the diameter of the frame. The arm (15) and the plate (13) are movable to and from each other by means of a tightening device (18) in order to on one hand, in a position close to each other, clamp the plate against the frame and, on the other hand, in a position distanced from each other, allow a free movement of the plate to desired positions relative to the frame.</p> |
