Obstruction sensing edge for a bifolding door

Details Obstruction sensing edge for a bifolding door Obstruction sensing edge for a bifolding door

E - Fixed Constructions

05

F

268/26

E05F 15/04 (2006.01) B60J 10/00 (2006.01) E05F 15/00 (2006.01) E06B 3/48 (2006.01) H01H 3/24 (2006.01)

Patent

CA 1081270

OBSTRUCTION SENSING EDGE FOR A BILFOLDING DOOR Abstract of the Disclosure An obstruction sensing edge for a bifolding door includes a body secured to the door. The body defines an internal fluid chamber that is in fluid communication with a fluid actuated switch. The switch controls the opening and closing of the door. Defined on the body portion is an edge portion including a leading edge and side portions extending from the leading edge to the body portion. The leading edge and body portion are fabricated of elastomeric material such that upon engagement of the leading edge with an obstruction, the internal chamber is deformed changing the volume thereof and actuating the switch. The edge por- tion includes elongated fins extending transversely to the sides of the edge portion such that upon complete closing of the door, the fins seal the door.

303934

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