Abstract: A lockable corner bracket includes a lockable encapsulated axle pulley which houses one end of a length of cord, with the free end secured to a side bracket. A cord locking mechanism is used to lock the encapsulated axle pulley and prevent unwinding of the cord, or loss of tension, during transport and installation to facilitate do-it-yourself installation. The axle pulley is further configured with a central slot to allow frontal insertion of a roller tube. The corner bracket may be used with a manual roller screen including roller tubes fitted with spring assist systems to facilitate winding and unwinding of the screen, or with roller tubes fitted with a tubular motor to drive rotation of the roller tube.

Abstract: A lockable corner bracket includes a lockable encapsulated axle pulley which houses one end of a length of cord, with the free end secured to a side bracket. A cord locking mechanism is used to lock the encapsulated axle pulley and prevent unwinding of the cord, or loss of tension, during transport and installation to facilitate do-it-yourself installation. The axle pulley is further configured with a central slot to allow frontal insertion of a roller tube. The corner bracket may be used with a manual roller screen including roller tubes fitted with spring assist systems to facilitate winding and unwinding of the screen, or with roller tubes fitted with a tubular motor to drive rotation of the roller tube.

Abstract: A lockable corner bracket includes a lockable encapsulated axle pulley which houses one end of a length of cord, with the free end secured to a side bracket. A cord locking mechanism is used to lock the encapsulated axle pulley and prevent unwinding of the cord, or loss of tension, during transport and installation to facilitate do-it-yourself installation. The axle pulley is further configured with a central slot to allow frontal insertion of a roller tube. The corner bracket may be used with a manual roller screen including roller tubes fitted with spring assist systems to facilitate winding and unwinding of the screen, or with roller tubes fitted with a tubular motor to drive rotation of the roller tube.

Abstract: A spring assist assembly for pre-tensioning of a helical torsion spring prior to installation in a roller screen or blind system uses a ratchet lock located at one end of a rigid tube which supports the helical torsion spring. A ratchet mechanism is provided between the ratchet lock and the torque shaft so that when a tool is inserted into an aperture in the end of the torque shaft, driving the tool drives relative rotation of a torque spindle with respect to a retaining shaft to tension the helical spring. The ratchet mechanism prevents release of the tension whilst the ratchet lock is biased towards the torque shaft. When the spring assist assembly is mounted in a support bracket, the projections of the ratchet lock disengage the ratchet lock from the torque shaft whilst the torque shaft is keyed to the support bracket to prevent rotation of the torque shaft, rigid tube and torque spindle whilst mounted in the support bracket, thereby allowing the retaining shaft to rotate with the roller tube.