Inventio Ag

Arnold M Morris

Karl B Orndorff

Richard H Pilsbury

Lawson Randall S

J Warren Barkell, Jr

Daphne D'Zurko

An elevator car having a clutch pivotally carried by a car door and biased to an operative position in which drive rollers of an adjacent hatch door may be engaged by 'open' and 'close' vanes. A first parallelogram linkage operates the close vane in direct response to car door position, in a direction opposite to initial car door opening movement. A second parallelogram linkage, associated with the open vane, is operated when the open vane contacts a hatch door roller at the start of door opening, to unlock the car door by retracting a plunger from an opening in the car door sill. The car door clutch bias may be manually overcome by authorized maintenance personnel, to disengage the car door from a hatch door.

Elevator car with improved car door clutch

An elevator car having a clutch carried by a car door for engaging drive rollers of an adjacent hatch door via 'open' and 'close' vanes of the clutch. A door operator mounted on the car includes a door drive arm which is linked to the car door via a door crank arm. A door lock carried by the door clutch prevents normal operation of the door crank arm, unless the open vane of the door clutch contacts a hatch door drive roller. Thus, unless the car is in a floor landing zone, the car door cannot be opened by a passenger inside the car.

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Chester Twp., Morris County, NJ, United States of America

Arnold M Morris