REMOTE CONTROLLED TOY HELICOPTER
First Claim
1. A toy helicopter comprising a body;
- a motor in the helicopter, a battery for powering the motor, and a receiver for communicating signals between the motor and a separate remote controller, a main rotor with blades which is driven by a rotor shaft and which is hinge-mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary;
a control for moving the angle of incidence of at least one blade of the rotor relative to the angle of incidence of another blade of the rotor cyclically along at least part of a 360 degree rotation path around the rotor shaft, causing a variation in lift force of the blade along at least part of the rotation path and thereby cause the body to be urged in a relatively horizontal direction from a relative position of rest, and such that for a first lift force developed by the main rotor, the helicopter is airborne, and including an element for assuring that the helicopter travels on a surface in a non airborne state when the main rotor develops a second degree of lift force, the non airborne travel is caused by the second degree lift force generated by the main rotor.
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Accused Products
Abstract
A remote-controlled toy helicopter comprises a body; a motor in the helicopter, a battery for powering the motor, and a receiver for communicating signals between the motor and a separate remote controller. A main rotor with blades is driven by a rotor shaft and causing a first lift force developed by the main rotor when the helicopter is airborne. A system permits movement of the helicopter on the ground, and these can be wheels. The helicopter travels on a floor or ground surface when the main rotor develops a second degree of lift force. The helicopter includes a system to effect motion in a horizontal dimension thereby to direct the desired direction. The control includes an actuator for engaging with an assembly depending from the rotor, the inter-engagement of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor. The system includes a rotor, preferably complemented with a stabilizer rotor.
38 Citations
14 Claims
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1. A toy helicopter comprising a body;
- a motor in the helicopter, a battery for powering the motor, and a receiver for communicating signals between the motor and a separate remote controller, a main rotor with blades which is driven by a rotor shaft and which is hinge-mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary;
a control for moving the angle of incidence of at least one blade of the rotor relative to the angle of incidence of another blade of the rotor cyclically along at least part of a 360 degree rotation path around the rotor shaft, causing a variation in lift force of the blade along at least part of the rotation path and thereby cause the body to be urged in a relatively horizontal direction from a relative position of rest, and such that for a first lift force developed by the main rotor, the helicopter is airborne, and including an element for assuring that the helicopter travels on a surface in a non airborne state when the main rotor develops a second degree of lift force, the non airborne travel is caused by the second degree lift force generated by the main rotor. - View Dependent Claims (3, 4, 5, 6, 7, 8)
- a motor in the helicopter, a battery for powering the motor, and a receiver for communicating signals between the motor and a separate remote controller, a main rotor with blades which is driven by a rotor shaft and which is hinge-mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary;
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2. A remote control toy helicopter comprising:
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a body having a longitudinal length; a main motor; a battery for powering the motor; a receiver for communicating signals between the motor and a separate remote controller; a main rotor with propeller blades driven by the main motor, the motor driving a rotor shaft and the rotor being hinge mounted on the rotor shaft and wherein the rotor shaft is relatively forwardly tilted relative to vertical; and wherein there is a variation in lift force of the blade, being such that for a first lift force developed by the main rotor, the helicopter is airborne, and including wheels for assuring the helicopter to travel on a ground surface when the main rotor develops a second degree of lift force and not airborne travel. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification