Emergency operating arrangement for rollable anti-break-in grills - has rotatable rolling shaft coupld to rotary motor and emergency manoeuvring device with drive shaft

摘要

A guide rail (5) is provided on each side of the opening for the grill (1) side edges, as is a rotatable rolling shaft (2) for the grill, a rotary motor (3) coupled to the rolling shaft (2), and coupled to the rolling shaft for use when the motor drive current is not available is an emergency manoeuvring device (4). A pliable drive shaft (8) is at one end connected to the emergency manoeuvring device (4) drive shaft, and its other end (10) extends through the adjacent guide rail so as to be manoeuvred from the grill exterior. A lock arrangement (12), accessible from outside the grill, prevents unauthorized driving of the transmission (8).