Car door safety interlock

Details Car door safety interlock Car door safety interlock

B - Operations, Transporting

66

B

187/13

B66B 13/16 (2006.01) B66B 13/20 (2006.01)

Patent

CA 1135201

ABSTRACT The power operated sliding door of an elevator car is provided with a mechanical safety interlock which permits the car door to be moved more than a critical distance from its closed position only when the car is in a landing zone. A pivoted interlock hook on the car door has a normal position in which it engages an interlock lug on the car frame when the door moves the critical distance from closed position. A movable element on the car door is driven to move the hook to a clearance position relative to the interlock lug. Drive of the movable element occurs when it contacts an interengaging member on the hatch door as the car door first starts to move from closed position in a landing zone.

371861

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