Motorised folding gate - has motor-mounted coaxially to hinge centre line to drive leaf-mounted hinge bushing

摘要

The gate consists of two pairs of leaves with outer leaves hinged to the frame and the two inner leaves hinged to their adjacent outer leaf. The inner leaves are also suspended from an overhead rail by rollers. Above the upper hinges of the outer leaves are driving motors (13). The shaft ends of each electric motor is connected via slip clutch (22) and outer transmission disc (24) carrying bolts (36) to a transmission disc (34). The tube (32) has a flange (29) welded to part of its length and the flange is bolted to the gate leaf. The precision tube (32) acts as a vertical bearing and contains a set of bearing rollers for radial seating as well as a set of balls for axial seating operating in a gap between the leaf-mounted part (31) and the frame-mounted part (30) of the hinge.