ANTRIEBSEINHEIT FÜR KIPPTORE

摘要

An operating unit for up-and-over doors comprising a portal-shaped frame (2) for receiving a door (3) connected to the frame by two upper lateral connecting rods (8) and two lower lateral wheels (9) guided to slide within rails (10) provided on the frame uprights, comprises a motorized drum (22) for winding and unwinding a flexible element (7) deviated by a roller (30) located at the centre of the frame lintel and by a roller (31) fixed to the centre of the upper edge of the door in a position projecting from the inside of the door, said flexible element dividing into two ropes (29) extending symmetrically between two pairs of deviation members (45,46) positioned in the lower region of the door, and a pair of eyelets (47) fixed to the sides of the door sill.