| 摘要 |
<p>The device has a shank (10) fixed to a structure, and a mass retained on the shank and pressed by a spring (8) against the structure with a preset force. The shank has a screw thread that is screwed via a longitudinal end of the shank into a tapped hole of the structure, and a nut is screwed onto another longitudinal end of the shank. The spring increases the friction forces between the structure and the mass.</p> |
