Aeronautics and astronautics – Aircraft structure – Details
Patent
1984-06-20
1987-07-14
Barefoot, Galen
Aeronautics and astronautics
Aircraft structure
Details
292DIG49, 292100, B64D 2906
Patent
active
046797505
ABSTRACT:
A latch system is provided for an aircraft nacelle. In one embodiment, the nacelle (10) comprises first (24) and second (18) cowls that are hingedly mounted to the nacelle for pivotal movement between closed, operational positions and open, maintenance positions. The latch system comprises latch means (42) movable to and from a latched position in which the latch means holds the first cowl in its closed position and prevents it from moving to an open position. The latch means includes locking means (152, 168) associated with the second cowl for holding the latch means in its latched position when the second cowl is in its closed position. As a result, the first cowl is held in its closed position when the second cowl is in its closed position. In a second embodiment, a disengageable latch (40) is provided for latching the edge of a cowl remote from the cowl hinge point (132). The latch comprises a toggle linkage (70, 86) movable to and from a latched position in which the toggle linkage engages the cowl and holds the cowl in its closed position and prevents it from moving to an open position, and a locking member (100) pivotally mounted to the nacelle for rotation to and from a locking position in which the locking member abuts the toggle linkage and holds the toggle linkage in its latched position.
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Barefoot Galen
The Boeing Company
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