| 摘要 |
<p>The bezel has outer arms that are movably supported in one of the linear grooves (10) in a center piece (6). The guide rails (15) are spaced from longitudinal axis (3) of housing portions (4,5). The curved cams (41,42) are provided in free ends (14) of outer arms, and partially aligned with respect to one of the guide rails. The outer arms are operatively contacted with a workpiece (2), when a control bolt (22) is engaged with the cams. The outer arms are moved towards the workpiece so that the distance between the guide rails is adjusted synchronously to clamp the workpiece.</p> |
