Title:
ELEVATOR EVACUATION DETERRENT DEVICE
Document Type and Number:
WIPO Patent Application WO1997037923
Kind Code:
A9
Abstract:
A simplified elevator car door lock assembly locks an elevator car door if the car is outside a landing zone and there is an attempt to open those doors. The car doors are connected to the hoistway doors by a pair of vanes (34, 36) mounted on the car door and a pair of rollers (29a, 29b) mounted on the hoistway door. A third vane (38) is attached to the car door and follows a cam path on the car door to lock the car doors if the car is not in a landing zone. Conversely, the third vane senses if the car is in a landing zone and does not lock the car door if it is moved.
Inventors:
RIVERA JAMES A
KULAK RICHARD E
TRACEY MICHAEL J
SHEYNKMAN VALERY G
STUPIENSKI DUANE R
ZALCMAN BLAIR J
KULAK RICHARD E
TRACEY MICHAEL J
SHEYNKMAN VALERY G
STUPIENSKI DUANE R
ZALCMAN BLAIR J
Application Number:
PCT/US1997/002386
Publication Date:
April 27, 2000
Filing Date:
February 18, 1997
Export Citation:
Assignee:
OTIS ELEVATOR CO (US)
International Classes:
B66B13/12; B66B13/20; (IPC1-7): B66B13/20; B66B13/12
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