| 摘要 |
<p>This mechanism offers a simple solution whereby an axial displacement of a grooved part (6) causes a radial displacement of rigid spheres (5) which grip and deform a tube (1) initially in a plastic state. Depending on the geometry of the grooves (7) in the grooved part (6) a variable clamping force is obtained. This fixing action is released simply with the return movement of the grooved part (6) into its initial position, since the associated tube (1), which is already in a solid state, ensures that the spheres (5) return into their initial position. The appropriate position for fixing the plastic tube can be detected by means of a sensor (11). Pressurisation of the plastic tube may be achieved by means of an elastic seal (10) on the part surrounding the tube (1).</p> |
