Locking hinge assembly for an aircraft cowling
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United States of America Patent
Stats
-
Dec 3, 1991
Grant Date -
N/A
app pub date -
May 22, 1990
filing date -
Jun 7, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a locking hinge assembly for pivotally attaching a movable cowling panel to a stationary cowling portion in which the locking mechanism is incorporated into the hinge assembly. The hinge assembly includes pivoting links attaching the movable cowling panel to a stationary fitting member which, in turn, may be attached to the stationary cowling. The links, along with the stationary fitting member and the movable cowling panel form a quadrilateral with four pivot axes located at the apexes of the quadrilateral. The assembly includes a movable hook member mounted on the stationary fitting member such that it moves into engagement with a pivot shaft attaching one of the links to the movable cowling panel when the panel is in its closed position. A cam portion formed on one of the links contacts the hook member as the panel moves toward its closed position so as to move the hook member into engagement with the pivot shaft.
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