Aeronautics and astronautics – Aircraft propulsion and steering on land or water
Patent
1984-01-06
1986-07-15
Blix, Trygve M.
Aeronautics and astronautics
Aircraft propulsion and steering on land or water
244 1717, B64C 2534
Patent
active
046001689
ABSTRACT:
An apparatus with wheels which may be removably attached to either of the skid type landing rails of a helicopter. A generally U-shaped attaching member is adapted to be removably attached to either of the rails. A support member has its bottom end pivotally coupled to the top of said attaching member. Structure connected to said support member has an engaging end adapted to engage the top portion of said rail when said attaching member is attached to said rail. The central portion of a generally U-shaped axle member is pivotally coupled to the upper end of the support member. The axle member has two outwardly extending arms with wheels attached thereto such that the wheels will be located on opposite sides of the rail. One end of a cylinder is pivotally coupled to said structure. Said cylinder has a piston which is pivotally coupled to the central portion of said axle member offset from the axis of said central portion. When the piston is retracted, the wheels are at a position such that the rail engages and is supported by the ground. When the piston is extended, the wheels are moved to a position to lift and support the rail above the ground.
REFERENCES:
patent: 2989273 (1961-06-01), Grunfelder
patent: 3279722 (1966-10-01), Glover, Jr. et al.
Blix Trygve M.
Corl Rodney
Spinks Industries, Inc.
Zobal Arthur F.
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