E - Fixed Constructions – 05 – D
Patent
E - Fixed Constructions
05
D
108/13
E05D 15/10 (2006.01) E05D 13/02 (1980.01)
Patent
CA 1071473
ABSTRACT OF THE DISCLOSURE Disclosed is a plug door installation including a safety device for the door which is movable inwardly and outwardly respectively to close and open an access opening in a wall and then slide edgewise along upper and lower guides wherein the upper guide comprises a track and the door is provided with cranks having rollers guided within the track. The improved device includes a safety crank mounted on the door and movable pivotally about a vertical axis with respect thereto and having a roller mounted on a vertical axis thereon guided within the track. The track has a generally horizontal support rail with a slot therein shaped to accommod- ate an upstanding portion of the safety crank therein in a predetermined closed position of the door. A safety shoe is pivotally mounted to the safety crank on the vertical axis of the roller for movement longitudinally along the rail during sliding movement of the door and includes an elongated element slidable upon the rail and of a length sufficient to readily span the slot. The element serves to prevent the safety roller from being drawn through the slot in the support rail and means on the shoe are effective to lift the safety crank and thereby position the safety roller in a nonwithdrawable position within the upper guide track upon the door being moved from closed to open position.
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