Operating mechanism for aircraft window shades

Details Operating mechanism for aircraft window shades Operating mechanism for aircraft window shades

1994-12-23

1996-05-14

Purol, David M.

Flexible or portable closure, partition, or panel

Pleating type

With power operating means

160265, E06B 394

Patent

active

055158986

ABSTRACT:
A method and apparatus for effecting the opening and closing movements of a foldable, pleated shade for aircraft windows comprises the utilization of a single cord which has its ends oppositely mounted on two coaxial reels driven by a reversible electric motor. The energization of the motor in one direction effects the winding of the cord on one reel and the concurrent unwinding of the cord on the other reel. The intermediate portions of the cord are trained by suitable pulleys to form a vertical loop having the opposite sides of the loop disposed in parallel with the path of movement of the shade. A transverse operating member for the shade is then connected to one of the oppositely moving sides of the cord loop to effect the shifting of the shade from an open to a dosed position, or vice-versa.

REFERENCES:
patent: 4673018 (1987-06-01), Judkins
patent: 4679610 (1987-07-01), Spraggins
patent: 4762159 (1988-08-01), Ford
patent: 4998576 (1991-03-01), Moreno

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