Window shade

Details Window shade Window shade

1994-12-22

1996-12-24

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

160297, E06B 984

Patent

active

055866310

ABSTRACT:
A window shade, in which a winding shaft, which is rotatably mounted with its ends on stationary pivot pins, can be coupled with a drive member at one of its ends. At least one rolling body is arranged in a recess, which is wedge-shaped in the circumferential direction, between an inner jacket surface of a pivot sleeve projection, which is rigidly mounted on the pivot pin, and an outer jacket surface of a shaft sleeve projection, which is rigidly mounted on the winding shaft. The rolling body acts as a locking member and is clamped in the wedge-shaped recess and can be released from the clamped position by an opening element movable by the drive member in the direction of rotation.

REFERENCES:
patent: 2670824 (1954-03-01), Banker
patent: 2787353 (1957-04-01), Spraragen
patent: 2812044 (1957-11-01), Cole
patent: 3232124 (1966-02-01), Weber
patent: 4372432 (1983-02-01), Waine et al.
patent: 4466475 (1984-08-01), Saito et al.
patent: 5248017 (1993-09-01), Schwarzbich
patent: 5392887 (1995-02-01), Nisenson
patent: 5460253 (1995-10-01), Ritter et al.

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