Automatic roller blind fastening with strap-operated catch lever

摘要

The catch lever (1) has a deflector roller for the strap. The catch lever and locking and release mechanism form one component. The catch lever engages with one or more bolts (3) fixed to the strap's drum and secured against bending or shearing by one or more guide plates (4). Springs pre-tension the locking lever against the pull of the roller blind strap. the locking lever vertically behind or horizontally over the strap's drum has a holder fixing it to the ceiling of to the base of the roller blind box.