| 摘要 |
<p>The unit has a cap provided opposite to a base and covering a base plate, where the cap has an outward curvature projecting away from the base or outward from the cap in a thrust direction. The cap is held in the base in lengthwise movable manner. A spring unit is partially encapsulated by the base and the cap and is pre-tensioned against the cap at the base. The spring unit is supported in the outward curvature.</p> |
