| 摘要 |
<p>The spring element, especially for installing in mattresses, is in the form of a rubber-elastic bellows (2), the internal points (5) of the folds (7) of which, with the spring element in its maximum compressed state, extend into the region of the lower support surface (4) or are supported there, and as a result of which the external points (6) of the folds are arranged in a plane lying above it and parallel to it. The maximum distance of the plane from the lower support surface corresponds to the width measurement of a completely compressed fold.</p> |
