摘要 |
<p>The block has a screw channel (7) emerging into a tightening cavity (3), and a connection screw (5) provided in the screw channel. The connection screw is guided in a longitudinal manner, and is screwed in the tightening cavity against pressure of a spring element. A spring plate (8) has a fixed end (32) mounted in a lateral wall of the screw channel, and a free end (13) acting on a side of the connection screw. A delimitation wall opposed to a pivoting space (28) is located close to the tightening cavity in a longitudinal direction (6).</p> |