Clutch controlled roller shade mechanism with integral overrunni

Details Clutch controlled roller shade mechanism with integral overrunni Clutch controlled roller shade mechanism with integral overrunni

1994-08-15

1996-04-16

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

160292, 160298, 160321, 192 17D, 192 41S, 192 81C, E06B 956, F16D 1308, F16D 4904

Patent

active

055073743

ABSTRACT:
A bi-directional sprang clutch further including a ratchet and pawl so as to permit substantial torque to be transmitted to the shade roller only in one direction. In the other direction, the roller is nearly free to rotate so that the weight of the shade material depending from one side of the roller exerts a torque on the roller which prevents reverse rolling.

REFERENCES:
patent: 2976976 (1961-03-01), Parker
patent: 3135369 (1964-06-01), Nisenson et al.
patent: 3372781 (1968-03-01), Fulton
patent: 4372432 (1983-02-01), Waine et al.
patent: 4433765 (1984-02-01), Rude et al.
patent: 4729418 (1988-03-01), Rude
patent: 4865109 (1989-09-01), Sherman
patent: 5361822 (1994-11-01), Nijs
patent: 5375643 (1994-12-01), Rude

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