Smiths Group Plc

Gec-marconi Aerospace Inc.

Reese Randolph Smith, Iii

Eugene E Shube

A locking mechanism for aircraft landing gear has a hook () displaceable into and out of engagement with the landing gear capture pin (). A roller () on a latch arm () engages a part () of the hook () to prevent it moving from a position where the pin () is retained. A linear solenoid () and a motor-driven rotatable cam () can both be operated independently to move the roller () out of engagement with the hook () and thereby allow a spring () to rotate the hook and release the capture pin ().

Locking mechanisms

An electromechanical actuator is disclosed having either a rotary output or a linear output for moving an external load, the actuator having at least two drive motors, a synchronizer connected to the outputs of the drive motors, a differential mechanism combining the outputs of the drive motors, and a quick release mechanism connected to the differential mechanism and the actuator output, the quick release mechanism releasing support of the external actuator load in response to an internal actuator jam and maintaining support or the external actuator load in response to an external actuator overload.

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Succasunna, NJ, United States of America

Reese Randolph Smith, Iii