Patent ID: 6062157
Filing Date: 2000-05-16
Classification: B63B,F16G

Abstract:
Spring means for a hauling element, comprising: at least one spring element (1) in the shape of a tension screw spring, which is wound so that, at an intermediate section (2) of said spring element, said spring element has a larger cross-section than that of windings at end-sections (3) of the spring element, and said end-sections (3), which have a smaller cross-section than the intermediate section (2), are wound in a mainly cylindrical shape, so that at a certain preset maximum tension load and at a preset maximal stretching length, respectively, a stretch region of the spring element is positioned at the intermediate section, which intermediate section has a lower spring constant due to a larger spring wind cross-section than that of the end-sections, while the end-sections, with smaller cross-section diameter and larger spring constant, are essentially not affected with regard to stretch, and said spring means additionally comprises an attachment element (6), for attachment with a hauling element section, which attachment element is arranged for attachment with one of said end-sections (3), and said attachment element having a reception bore which has a central bore axis that extends axially in a common direction with stretch elongation of said spring element and into which reception bore the hauling element section extends for attachment with said spring element.