| 摘要 |
<p>A clamping device for work pieces; the device comprises a box-shaped body (10) having un longitudinal axis (A), at least one movable gripping member (11), and control means for moving the clamping member (11) comprising an articulated system having an L-shaped lever (19) connected to a control member by a toggle lever device; an arm (19') of the lever (19) defines a first connecting rod pivotally supported by the body (10) of the clamping device by a first pivotal axis (20) and connected to the clamping member (11) by a first articulation axis (21). A second connecting rod (23) is pivotally supported by the box-shaped body (10) to rotate according to a second pivotal axis (24), and in turn is connected to the clamping member (11) by a second articulation axis (25). The two connecting rods (19', 23) are of different lengths, and the pivotal axes (20, 24) or articulation axes (21, 25) lie in a plane passing through a reference line (L) which forms an angle ( alpha ) with respect to the longitudinal axis (A) of the box-shaped body (10). <IMAGE></p> |
