Lock assembly

Details Lock assembly Lock assembly

1998-08-31

2000-10-31

Boucher, Darnell M.

Closure fasteners

Bolts

Swinging

292217, 292DIG65, E05C 306

Patent

active

061390739

ABSTRACT:
A door lock for locking a sliding door on a transit vehicle. The lock has a base for attachment to the transit vehicle and a lock cam having a slot for engaging a door lock element attached to the door. A pivot is connected to the base and to the lock cam to provide a rotary connection of the lock cam to the base. A lock actuator is attached to the base. The lock actuator includes a moveable actuator portion for engaging the lock cam to prevent rotation of the lock cam to lock the door. The actuator also has an energized actuator portion for withdrawing the moveable actuator portion from engagement with the lock cam to release the lock cam and unlock the door. The energized actuator portion is connectable with a control system for the transit vehicle door. The lock also has a manual release mounted to engage the moveable actuator portion to move it from engagement with the lock cam to release the lock cam and hence unlock the door. A sprag engaged with the manual release prevents locking of the door after the manual release has been used.

REFERENCES:
patent: 3621686 (1971-11-01), Klein
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patent: 4968074 (1990-11-01), Yamagishi et al.
patent: 4976477 (1990-12-01), Nakao
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patent: 5257840 (1993-11-01), Rouzaud
patent: 5497640 (1996-03-01), Kokuryo
patent: 5593191 (1997-01-01), DeMarco
patent: 5613716 (1997-03-01), Cafferty
patent: 5632515 (1997-05-01), Dowling
patent: 5901992 (1999-05-01), Winkler

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