US 11,772,937 B2
Elevator car door control system
Charles MacKenzie-Smith, Astoria, NY (US); Matthew Perillo, Brooklyn, NY (US); Stephen Bosshart, Brooklyn, NY (US); and Andrew Goodwin, New York, NY (US)
Assigned to G.A.L. Manufacturing Company, LLC, Bronx, NY (US)
Filed by G.A.L. Manufacturing Company, LLC, Bronx, NY (US)
Filed on Feb. 25, 2022, as Appl. No. 17/680,611.
Prior Publication US 2023/0271810 A1, Aug. 31, 2023
Int. Cl. B66B 13/20 (2006.01); B66B 13/18 (2006.01); B66B 13/12 (2006.01); B66B 13/08 (2006.01)
CPC B66B 13/20 (2013.01) [B66B 13/12 (2013.01); B66B 13/185 (2013.01); B66B 13/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An elevator car door control system comprising:
a clutch including a stationary base and a slidable base movably attached to the stationary base, the stationary base being adapted for attachment to an elevator car door of an elevator car; and
an interlock mechanism including a locking arm operatively connected to the slidable base of the clutch, the locking arm being moveable such that in a first position, the interlock mechanism is fixed relative to the elevator car and in a second position, the interlock mechanism is movable relative to the elevator car,
wherein when the elevator car door is in a closed position, a door operating mechanism is operable to perform an initial part of an opening sequence to cause the slidable base to translate relative to the stationary base without moving the elevator car door from the closed position, and
wherein when the slidable base translates and contacts a roller on a hoistway door along an elevator shaft housing the elevator car, the locking arm of the interlock moves from the first position to the second position.