Patent ID: 8726972

Claim:
A cover for a clutch of a roller blind, the clutch including a sprocket rotationally driven through the application of tension to a chain or cord received at least partially about the sprocket, the cover comprising: a plate member fixed to the clutch and prevented from rotation with the sprocket, the plate member including: two abutment members against which a stopper on the chain or cord bears to limit rotation of the sprocket, one of the two abutment members assisting in limiting rotation of the sprocket in a first direction and the other of the two abutment members assisting in limiting rotation of the sprocket in a second, opposite direction; and two notches generally concave in configuration and sized to receive at least a portion of an exterior surface of the stopper when the stopper contacts one of the two abutment members, one of the two notches adjacent to one of the two abutment members and the other of the two notches adjacent to the other of the two abutment members.