Flying Device With Improved Movement on The Ground
First Claim
1. A flying device with improved movement on the ground with typically three or four rotors or propellers (however, the minimum number of propellers or rotors is one), the axis of rotation of which in each case can be tilted around at least one axis relative to the flying device, characterized in that a) these rotors or propellers are provided on the outside with annular coverings that are connected directly to the rotor blade tips and rotate with the latter, b) these coverings have contact with the ground when the flying device is on the ground and the rotor/propeller axes of rotation are appropriately tilted relative to the positions in flight. c) and these coverings, corresponding to the function of wheel tires by applying torques to the rotary axes of the rotors, enable an independent driven movement of the flying device on the ground, based not on aerodynamic forces but on the direct transmission of force from the aircraft to the ground.
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Accused Products
Abstract
The invention relates to a flying device which can efficiently move in the air by aerodynamic forces and by direct force transmission on the ground, without the need for independent drive and thrust generation systems for the two modes of movement. The rotors (1) of the flying device are provided on the outside thereof with an annular rotating covering (4), connected directly to the rotor blade tips, which, when the flying device is on the ground and the rotor rotational axes (2) are correspondingly pitched about an axis (3), come into contact with the ground. The covering (4) hence permits a movement of the flying device on the ground by rolling, which is based on a direct force transfer to the ground. A further rotor pitching axis (5) permits the flying device to be controlled in the air and on the ground by means of the same actuator system. The above flying principle permits, for example, remote controlled reconnaissance drones for close or remote espionage, to independently enter inaccessible regions, or in the context of police or military application in buildings presenting danger for personnel, to gain access to upper floors.
177 Citations
14 Claims
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1. A flying device with improved movement on the ground with typically three or four rotors or propellers (however, the minimum number of propellers or rotors is one), the axis of rotation of which in each case can be tilted around at least one axis relative to the flying device, characterized in that
a) these rotors or propellers are provided on the outside with annular coverings that are connected directly to the rotor blade tips and rotate with the latter, b) these coverings have contact with the ground when the flying device is on the ground and the rotor/propeller axes of rotation are appropriately tilted relative to the positions in flight. c) and these coverings, corresponding to the function of wheel tires by applying torques to the rotary axes of the rotors, enable an independent driven movement of the flying device on the ground, based not on aerodynamic forces but on the direct transmission of force from the aircraft to the ground.
Specification