US 2004/0200924 A1Published application

Radio-controlled flying toy

OwnerLeonard R. Clark JR., H. Peter Greene JR.inventors

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Abstract

A vertical take off and landing aircraft toy has a fuselage with a plurality of fins and a rotor assembly. The rotor assembly may be driven by an electric motor, powered by a battery, an air motor powered by compressed air, or a gasoline engine, radio controlled in each case to control the speed of the motor. The rotor assembly includes a head portion coupled to the motor output shaft, a central hub coupled to the head portion, and a pair of airfoil blades. The head portion allows pivoting of the central hub about an axis generally aligned with the axis of the blades, while the blades are pivotable with respect to the central hub about an orthogonal axis. The fins on the fuselage resist counterrotation of the fuselage with respect to the rotation of the blades; alternatively, a pair of counterrotating blades may be provided.

Claims14

Dependent claims

A vertical take off and landing aircraft toy comprising:

a fuselage;
a source of power for a drive motor;
a drive motor having an output shaft, the drive motor receiving power from the source of power;
a control system regulating the operation of said drive motor responsive to a remotely-transmitted control signal;
a rotor assembly mounted at a first end of the fuselage and arranged to be driven by said drive shaft of said drive motor;
and
a landing gear assembly mounted to a second end of the fuselage;
the rotor assembly including:
a rotor head fixed to said output shaft of said motor;
a central rotor hub;
and
a pair of airfoil blades mounted on either side of said central rotor hub, said central rotor hub being pivoted to said rotor head about a first pivot axis orthogonal to said output shaft and generally aligned with the pair of airfoil blades, and said pair of airfoil blades being pivotally connected to said central rotor hub for pivoting about respective second axes at least generally perpendicular to the first pivot axis and orthogonal to said output shaft.

9 more elements

Dependencies are inferred from the claim text.