Roller drive belt winding and take-up system for window blind in building has rectangular casing surrounding winder mechanism, which is held by several T-shaped members which may be flexible

摘要

The roller blind belt winder (GW) is mounted inside a rectangular casing (K). The front or top of the casing may be open to allow free access of the belt to the blind winding spindle. The belt winder may be mounted on several flexible T-shaped spacers (VL,VR). The head of each T-shape is in contact with the winder and the stem of each T-shape is in contact with the inner surface of the casing.