Sensitive door edges

Details Sensitive door edges Sensitive door edges

H - Electricity

01

H

306/8, 340/135.6

H01H 3/16 (2006.01) E05F 15/00 (2006.01) G01P 13/00 (2006.01) H03K 17/97 (2006.01)

Patent

CA 1148589

IMPROVEMENTS IN SENSITIVE DOOR EDGES Abstract of the Disclosure A sensitive edge 10 for door systems, lifts, doors, or other moving portions of transit vehicles that come into contact with articles or passengers includes a body defining a resilient deformable leading edge portion 30 and a base portion 32 within which is defined an internal chamber. A coupling portion is defined on and extending from the base for coupling the sensitive edge to the door or similar device 36. The chamber 34 is hollow and at atmospheric pressure and in the preferred embodiment, is filled with air. Within the chamber is mounted a Wiegand wire and pick-up coil 38 that is electrically coupled to a switch for recycling the door or similar device upon engagement of the sensitive edge with an object such as a passenger. Also mounted within the chamber and spaced from the Wiegand wire or pick-up coil and wire is a magnet or similar magnetic field creating device 40 such that upon defor- mation of the sensitive edge, the magnet and Wiegand wire are brought sufficiently close together to cause a switching function to open the door or similar device.

349700

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