| 摘要 |
The movement of the stretching units (2,3) in the freed position is either towards or away from each other, or rotatable in relation to one another. - With these units work a spring component (10) which in the locked position causes the stretch units to move in either of the two ways as soon as the tractive tension in the lasher reduces to the point that it starts to slacken. Thus, they automatically commence tightening the lasher again. |
