Helicopter rotor comprising elastomer joints
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United States of America Patent
Stats
-
Jan 18, 1983
Grant Date -
N/A
app pub date -
Mar 20, 1981
filing date -
Apr 3, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A helicopter rotor comprising elastomer joints, in which each blade is connected to a rotatable hub by means of a yoke constituted by a single U-shaped piece and mounted through a relative aperture provided in said hub; each yoke being connected to a transverse arm outwardly bordering said aperture, by means of a U stirrup embracing the relative said arm and provided with two overlying appendices extending outwards and having two surfaces inclined towards the other and acting as stop surfaces for two rocker arms constituting a device for controlling the flapping movements of said blade; said two rocker arms being mounted rotatable in a substantially vertical plane passing through the axis of the relative blade and being supported by a lever for controlling the pitch of this latter.
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