Aircraft door lock actuating mechanism

Details Aircraft door lock actuating mechanism Aircraft door lock actuating mechanism

1982-07-16

1985-04-16

Smith, Gary L.

Locks

Special application

For control and machine elements

70 92, 70481, 70DIG42, 292DIG31, E05B 1310, E05B 6510

Patent

active

045107793

ABSTRACT:
An aircraft door latching bolt actuating mechanism in which inside and outside handles are provided to selectively actuate a crank having connections with one or more door latching bolts. The outside handle is supported for movement between a normal, generally flush non-operative position and a non-flush operative position permitting movement of the crank to a bolt releasing position. In one form, the handle is pivoted between its ends for swinging movement between its flush and non-flush positions, and in another form is spring biased for pop-up movement from the flush to non-flush position. The outside handle is normally retained in its flush position by a latch or lock engaged with a releasable keeper which can be manually released from the door exterior to enable use of the outside handle. When utilizing the inside handle, a connected first cam operates to release the keeper to enable movement of the pop-up handle embodiment to its non-flush position. In the case of the pivotally swingable handle, a connected second cam is utilized to move the released outside handle to its non-flush position. Movement of the outside handle to the non-flush position thus serves as a visual exterior indication that the door has been unlocked.

REFERENCES:
patent: 2131033 (1938-09-01), Barrington et al.
patent: 2176969 (1939-10-01), Johns
patent: 2223236 (1940-11-01), Barrington et al.
patent: 2239301 (1941-04-01), Papst
patent: 2246708 (1941-06-01), Wieben
patent: 3044815 (1962-07-01), Soss
patent: 4134281 (1979-01-01), Pelcin

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