Patent ID: 7481260
Filing Date: 2009-01-27
Classification: E06B

Abstract:
1. Tightening device for a horizontally or vertically running roller blind having a free end wherein the roller blind is wound out or onto a roller, and wherein the winding in or out of the roller blind from the roller is guided by the aid of belts running from both ends of the roller to a rotational bearing for the belts ( 12 a , 12 b ), wherein the tightening device comprises an axle located at said free end of the roller blind, wherein the axle runs between rollers being connection to the belts and which through the movement of the belts are rotated and thereby rotates the axle, the axle comprising a pre-loaded spring which through the rotation of the axle exercises a force on the axle pressing the axle in a direction away from the roller for the roller blind