Door operating apparatus

Details Door operating apparatus Door operating apparatus

1975-03-06

1976-06-08

Downey, Kenneth

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

With mounting or supporting means

49345, 49356, E05F 1110

Patent

active

039616606

ABSTRACT:
A passenger carrying vehicle having a side door providing means to enter and exit the vehicle. A hand-operated door operating apparatus has a hand crank assembly that is manually movable by the operator of the vehicle to open and close the door. The door operating apparatus has a first linkage and a second linkage operatively connected to join the door to the hand crank assembly. The first linkage is movable to an over-center position to hold the door in a closed position. The second linkage is movable to an over-center position to hold the door in an open position. A common control link connects the first linkage to the second linkage.

REFERENCES:
patent: 652018 (1900-06-01), Duner
patent: 2198572 (1940-04-01), Cross

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