Patent ID: 7618022
Filing Date: 2009-11-17
Classification: A47G,Y10T

Abstract:
1. A tensioning device for use on a stand for clamping a rod-shaped unit, said tensioning device having a single actuating element in the form of a rotatably mounted drive wheel having a toothed outer periphery and an integrally formed hub around which a first end of at least one flexible force transfer element, which can be loaded in tension, is wound, wherein the rotation of the drive wheel shortens the length of the force transfer element thereby clamping the rod-shaped unit in the stand, a safety catch positioned adjacent the drive wheel to prevent the drive wheel from turning backwards automatically in a first, locking position when tightening the flexible force transfer element, and allows the drive wheel to turn backwards in a second release position, wherein the drive wheel has a diameter several times larger than that of the hub.