Friction hinge assembly

Details Friction hinge assembly Friction hinge assembly

E - Fixed Constructions

05

C

E05C 17/64 (2006.01) E05D 11/08 (2006.01) E05D 11/10 (2006.01) E05F 1/02 (2006.01)

Patent

CA 2072577

There is disclosed a hinge assembly that has a pintle (9) and two plates that can rotate about the axis of the pintle. The first plate (17) is irrotatably affixed to the pintle. The second plate is part of a friction element which also includes a band having a plurality of turns helically disposed about the pintle. Between the other end (15) of the band and the second plate there is a spring (13) that tightens the band about the pintle. The band is flexible enough so that it does not grip the pintle without the force of the spring. Frictional force is developed between the band and the pintle that opposes movement of the second plate in a direction that tends to tighten the band about the pintle. Movement of the second plate in the opposite direction tends to loosen the band's grip on the pintle so that very little frictional force is developed.

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