Device for adjusting the tension of a pulling element
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United States of America Patent
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Mar 3, 2015
Grant Date -
Oct 23, 2008
app pub date -
Nov 10, 2005
filing date -
Nov 10, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to a device for the automatic adjustment of the pretension of a pulling element (10, 11) in particular a cable, comprising an elasticity element (50) acting on a first mounting means (20) for a first section (10) of the pulling element for increasing the pre-tension, a second mounting means (30) for a second section (11) of the pulling element, threads (70, 70′, 71) arranged at the first mounting means which interact with a spindle (40, 40′) so that a change of the distance between the first mounting means (20) and the second mounting means (30) causes a rotation of the spindle (40) or the threads (70), and blocking elements (36, 45; 236, 245), which are arranged such that they block a rotation of the spindle or the threads (70), respectively, when the pulling element is under pulling load.
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