Linear actuator, in particular for driving an aircraft landing gear leg
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United States of America Patent
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-
Nov 1, 1994
Grant Date -
N/A
app pub date -
Feb 1, 1993
filing date -
Feb 3, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A linear actuator, in particular for driving an aircraft landing gear leg, the actuator comprising a main body with a screw that is prevented from moving axially and that is constrained to rotate with a coaxial gear wheel that meshes with the outlet gear wheel of a driving motor and gear box assembly, and a nut that is secured to a sliding guide rod inside said main body. According to the invention, the rotary connection between the screw and the coaxial gear wheel is provided by declutchable coupling means, which means is declutched in an emergency for the purpose of releasing the screw by associated trigger means whose operation requires very little energy.
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