Braking device for a door operator

A device for inhibiting the closing of a door that controls entry of an enclosure includes a first magnet disposed on a driven portion of the device and a second magnet disposed on a fixed portion of the enclosure. The first magnet and the second magnet are configured to be in register with each oth...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Lee Jinkoo, Thompson Mark Steven, Kim Jung Sam, Yoo Byeong Sam, Hu Guohong, Shim Hansoo
Format:	Patent
Sprache:	eng
Schlagworte:	CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION ELEVATORS ESCALATORS OR MOVING WALKWAYS FIXED CONSTRUCTIONS HAULING HOISTING KEYS LIFTING LOCKS PERFORMING OPERATIONS SAFES TRANSPORTING WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Beschreibung
Zusammenfassung:	A device for inhibiting the closing of a door that controls entry of an enclosure includes a first magnet disposed on a driven portion of the device and a second magnet disposed on a fixed portion of the enclosure. The first magnet and the second magnet are configured to be in register with each other as the door moves toward a closed position such that if the first magnet and the second magnet are in register with each other, a pole of the first magnet is in close proximity of a pole of the second magnet such that the first magnet and the second magnet react to each other to inhibit motion of the door towards the closed position.