Crank Handle Gear Box System
This is operated with a crank handle where one turns clockwise or anti : clockwise to either lift or lower the blind, once the blind is at its lowest position one then : secures the bottom tube to the floor and then lifts the blind to put it under tension.
These blinds are operated by an electric motor, generally hidden inside the roller bar of the : blind. The blind opens and closes by the touch of a wireless remote control switch.
Automated blinds in most circumstances needs side tracks to secure the side of the blind : in windy conditions when either lowering or raising the blin