Roller blind

Abstract

A roller blind having in the external cylindrical surface of a roller a depression that extends essentially over the entire width of the roller in the form of a channel. Inserted into the channel is a carrier which is fastened on one end to the roller by a pivoting cover. The carrier is narrower than the channel, as a result of which it has space for lateral displacements. The carrier has a groove with a slot. The roller blind makes it possible to easily and correctly straighten the blind fabric.

What is claimed is:  
     
         1 . A roller blind with a roller, a fastening device to fasten an upper edge of a blind fabric to the roller, and an actuator device to wind and unwind the fabric on the roller, wherein the fastening device has a carrier for the fabric that is mounted so that it can pivot in the periphery of the roller and the fabric is fastened to the carrier.  
     
     
         2 . The roller blind as claimed in    claim 1   , wherein the carrier has a central trough with a slot and two arms.  
     
     
         3 . The roller blind as claimed in    claim 2   , wherein the arms of the carrier are C-shaped on their ends.  
     
     
         4 . The roller blind as claimed in    claim 1   , wherein the roller has a channel which extends essentially over the entire width of the external cylindrical surface and parallel to the axis of the roller.  
     
     
         5 . The roller blind as claimed in    claim 1   , wherein the blind fabric is introduced into the carrier.  
     
     
         6 . The roller blind as claimed in    claim 1   , wherein the blind fabric has a reinforcement on its upper edge.  
     
     
         7 . The roller blind as claimed in    claim 2   , wherein the width of the arms of the carrier is smaller than the width of the channel.  
     
     
         8 . The roller blind as claimed in    claim 1   , wherein the carrier can be pivoted clockwise or counterclockwise around one of its ends by a cover.  
     
     
         9 . The roller blind as claimed in    claim 1   , wherein the actuator device has a drive mechanism and a sprocket wheel.  
     
     
         10 . The roller blind as claimed in    claim 9   , wherein the drive mechanism is non-rotationally connected with the roller by the sprocket wheel and the drive mechanism.  
     
     
         11 . The roller blind as claimed in    claim 1   , wherein a second end of the carrier is mounted in a cover.  
     
     
         12 . The roller blind as claimed in    claim 2   , wherein the roller has a channel which extends essentially over the entire width of the external cylindrical surface and parallel to the axis of the roller.  
     
     
         13 . The roller blind as claimed in    claim 3   , wherein the roller has a channel which extends essentially over the entire width of the external cylindrical surface and parallel to the axis of the roller.  
     
     
         14 . The roller blind as claimed in    claim 2   , wherein the blind fabric is introduced into the carrier.  
     
     
         15 . The roller blind as claimed in    claim 3   , wherein the blind fabric is introduced into the carrier.  
     
     
         16 . The roller blind as claimed in    claim 4   , wherein the blind fabric is introduced into the carrier.  
     
     
         17 . The roller blind as claimed in    claim 2   , wherein the blind fabric has a reinforcement on its upper edge.  
     
     
         18 . The roller blind as claimed in    claim 3   , wherein the blind fabric has a reinforcement on its upper edge.  
     
     
         19 . The roller blind as claimed in    claim 4   , wherein the blind fabric has a reinforcement on its upper edge.  
     
     
         20 . The roller blind as claimed in    claim 1   , wherein the blind fabric has a reinforcement on its upper edge in the form of a rod that is introduced into a slot of the carrier.