| 摘要 |
<p>The spring (1) has a symmetrically rotated protective cover designed as a protective roller bellows (9) and provided with a flexible wall for protecting a roller fold (7) from pollution. The protective roller bellows is inversely arranged at a pneumatic spring roller bellows (4), so that the protective roller bellows is rotated under the formation of another roller fold (10) at rolling pistons (3) and at a sleeve-type external guide (8). The roller folds are spaced at distance from each other, and an angular clearance (11) is formed between the roller folds of the roller bellows.</p> |
