| 摘要 |
<p>#CMT# #/CMT# The device has a blocking device provided for a movable leaf that is controllable in dependence of a position of a fixed leaf. The blocking device is arranged centrically on a motor shaft (7) of a movable leaf-sided door drive, where the blocking device is formed as a brake (17) with a V-shaped brake lining (23) that is stressed by a spring (27) in a direction of a front side of a brake drum (22). The brake drum exhibits a V-shaped circumferential slot, where the V-shaped brake lining is engaged into the circumferential slot. #CMT#USE : #/CMT# Used for controlling the closing sequence of a double-leaf door e.g. smoke control door and fire door. #CMT#ADVANTAGE : #/CMT# The blocking device is formed as the brake with the V-shaped brake lining that is stressed by the spring in the direction of the front side of the brake drum, thus facilitating the control of the closing sequence for the double-leaf door in a cost effective and compact manner, and also avoiding the need for large space requirement for the blocking device in a housing of the door drive. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a sectional view of a brake of a device for controlling the closing sequence of a double-leaf door. 7 : Motor shaft 17 : Brake 22 : Brake drum 23 : V-shaped brake lining 27 : Spring.</p> |
