Toggle latch with automatic safety catch

Details Toggle latch with automatic safety catch Toggle latch with automatic safety catch

1988-09-01

1990-05-15

Moore, Richard E.

Closure fasteners

Bolts

Swinging

292DIG31, 292DIG49, 292196, E05C 502

Patent

active

049252216

ABSTRACT:
A toggle latch is shown which retains a structure, such as an aircraft door, latched against a second structure, such as the fuselage. The latch includes a housing having a latch actuator joined to the housing a first pivot point and a latch member joined to the housing at a second pivot point. A linkage joins the latch actuator and latch member at third and fourth pivot points. In the latched position, the fourth pivot point is positioned past a center line between the first and third pivot points to create the over-center, toggle effect of the latch. A safety catch is pivoted within the latch actuator which extends into a passage in the actuator. The safety catch also engages the housing when the toggle latch is in its latched position to lock the latch closed. Insertion of a tool into the passage engages the safety catch to remove it from its locking contact with the housing and free the latch actuator for opening the latch.

REFERENCES:
patent: 2927812 (1960-03-01), Smith et al.
patent: 3515422 (1970-06-01), Poe
patent: 4538843 (1985-09-01), Harris

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