Rotary-wing vehicle system
First Claim
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1. A coaxial rotary-wing apparatus comprising:
- at least two sets of lifting blades connected to a main coaxial drive shaft;
primary drive means connected to said main coaxial drive shaft for driving the at least two sets of lifting blades at the same angular velocity, a first set of said lifting blades being driven by said primary drive means in a first direction of rotation, and a second set of said lifting blades being driven by said primary drive means in a second direction of rotation opposite to said first direction;
the at least two sets of lifting blades being located one above the other, wherein the center of gravity of the coaxial rotary-wing apparatus is positioned lower than the at least two sets of lifting blades;
a plurality of auxiliary drive means, comprising propeller drives for driving the coaxial rotary-wing apparatus in at least forwards and backwards directions while in flight; and
control means for controlling said primary and auxiliary drive means, said control means comprising differential left/right steering and forwards/backwards steering means for providing commands to each of said auxiliary drive means to control power and rotational direction of each of said auxiliary drive means for causing said rotary wing apparatus to move in forwards and backwards directions and to perform yawing motions while in normal and high speed forwards and backwards flight.
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Abstract
A rotary-wing apparatus that is aeronautically stable, easy to fly with a multidimensional control, small size, and safe to fly and low cost to produce. The rotary-wing apparatus includes a coaxial, counter rotating rotor drive providing lifting power with an inherent aeronautical stability; auxiliary propellers that face the direction of flight and are located on opposite sides of said coaxial rotary-wing apparatus and enable flying forwards, backwards and perform yawing. The rotary-wing coaxial helicopter toy is remotely controlled and safe to fly in doors and out doors, while performing exciting maneuvers even by untrained kids.
93 Citations
21 Claims
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1. A coaxial rotary-wing apparatus comprising:
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at least two sets of lifting blades connected to a main coaxial drive shaft; primary drive means connected to said main coaxial drive shaft for driving the at least two sets of lifting blades at the same angular velocity, a first set of said lifting blades being driven by said primary drive means in a first direction of rotation, and a second set of said lifting blades being driven by said primary drive means in a second direction of rotation opposite to said first direction; the at least two sets of lifting blades being located one above the other, wherein the center of gravity of the coaxial rotary-wing apparatus is positioned lower than the at least two sets of lifting blades; a plurality of auxiliary drive means, comprising propeller drives for driving the coaxial rotary-wing apparatus in at least forwards and backwards directions while in flight; and control means for controlling said primary and auxiliary drive means, said control means comprising differential left/right steering and forwards/backwards steering means for providing commands to each of said auxiliary drive means to control power and rotational direction of each of said auxiliary drive means for causing said rotary wing apparatus to move in forwards and backwards directions and to perform yawing motions while in normal and high speed forwards and backwards flight. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification