Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
  • A63H27/00—Toy aircraft; Other flying toys
  • A63H27/02—Model aircraft

Definitions

• Remote-controlled flying machine in particular for aerial photography.
• the invention relates to a remote-controlled flying machine, in particular used for aerial photography.
• the invention therefore aims to propose a particular structure of a flying machine which allows its easy implementation, and its recovery at the end of its mission.
• a remotely controlled flying machine comprises a nacelle detachably fixed to a lifting part, the nacelle comprising an elongated part which receives a propulsion member driving a propeller mounted propellant and which extends from an organ of attachment to the lift part up to a lower part protruding towards the front.
• the prominent part forms a grip zone for manual catching in flight of the flying machine.
• the propeller being propelled, it does not constitute a danger for the one who carries out the take-up, even if the propulsion unit could not have been stopped.
• the prominent part forms a privileged contact zone with the ground. This contact causes the machine to tilt around the protruding part, which moves the propeller away from the ground and thus helps protect it. It is therefore possible, if desired, to bring the flying object to the ground voluntarily, without causing any damage to the object, if it is not possible to catch it in flight.
• the nacelle has arms which extend laterally on either side of the nacelle.
• the arms prevent contact of the propeller with the ground in the event of a lateral tilting of the flying object during contact with the ground.
• the propulsion member is an electric motor powered by an accumulator disposed in the lower part of the nacelle.
• the electric motor is quiet enough to allow the flight of the machine in urban areas without creating significant noise. In addition, it can be stopped in flight when shooting in order to avoid that the vibrations generated by the engine and the propeller affect the sharpness of the image, and can be restarted very easily after the shooting.
• the lower part of the nacelle includes a housing for a camera.
• the lift part comprises a Delta-shaped blade, which has a frame comprising a central beam and two leading edges forming a point.
• the airfoil extends from the central beam on either side of it towards the leading edges, the fastening member of the nacelle being connected to the central beam.
• the lifting part is simple and can easily be disassembled for transport.
• the leading edges are ball joints on the central beam.
• the leading edges of the central beam by bringing one of the leading edges of the central beam and / or allowing one away from the other leading edge of the central beam, it causes a warping of the wing which allows to direct the flying machine.
• the lifting part advantageously comprises a elevator which makes it possible to control the attitude of the flying machine.
• FIG. 1 is a perspective view of a flying object according to the invention.
• FIG. 2 is a schematic side view of the nacelle of the flying object according to the invention, for viewing the location of the various organs of the flying object.
• front and rear, lateral, vertical, up, down, used throughout this document relate to the flight direction of the flying object, the latter being considered in an attitude of straight line flight without roll.
• a flying object according to the invention comprises a lift part 1 and a nacelle 100 which is detachably attached to the lift part 1.
• the lift part 1 comprises an armature comprising a central beam 2 and two leading edges 3 connected to the central beam 2 so as to form a point 4.
• a wing 5 extends on either side of the central beam 2 to the leading edges 3 to form a Delta canopy.
• the connection between each leading edge 3 and the central beam 2 is not rigid, but admits a certain swiveling.
• Each of the leading edges 3 comprises a hooking point 6 for a stay 7 and a hanger 8.
• Each of the stay 7 is also attached to the end of an arm 114 extending laterally from the nacelle 100, while that each of the lines 8 is connected to the nacelle 100, as will be detailed below.
• the shrouds 7 are here advantageously constituted by tubular rods articulated at their two ends.
• leading edges 3 can be articulated on the central beam 2 by means of hinges having a substantially vertical axis, in which case the shrouds 7 become unnecessary, the single action of the lines 8 sufficient to ensure the balance of the edges d attack 3 around the axis of their respective hinges.
• a tension on one of the lines 8 simultaneously with a relaxation of the other line 8 causes warping of the airfoil 5 allowing the turn of the flying machine towards the side of the taut line.
• the wing area of the airfoil 5 is preferably chosen to be large enough to allow a speed of slow flight, which makes shooting easier.
• the fact that the lift portion 1 is detachable from the nacelle 100 facilitates the transport of the flying machine, even though the wing surface of the airfoil 5 is important.
• a elevator 9 is articulated on the central beam 2 at the opposite end of the tip 4.
• a reference 10 secured to the elevator 9 receives a rod 11 with articulation.
• a pull on the rod 11 forces the flying object to take a stung attitude, while a push on the rod 11 forces the flying object to take a nose up attitude.
• the nacelle 100 comprises a body composed of an elongated part 101 extending from a hooking member 102 to the lift part 1 up to a lower part 103.
• the attachment member 102 is shaped as a gutter capable of receiving the central beam 2 of the lifting part 1.
• the central beam 2 is simply pinned onto the nacelle 100 by two bolts 107 acting as a fuse in the event of a crash.
• the lift part 1 is therefore easily detachable from the nacelle 100.
• the connection thus produced between the central beam 2 of the lift part 1 and the nacelle 100 is rigid.
• the nacelle 100 is therefore suspended under the lift part 1.
• the elongated part 101 comprises a spindle 104 receiving an electric motor 105 which drives a propeller 106 propelled (that is to say mounted at the rear of the nacelle 100).
• the electric motor 105 is powered by an accumulator 108 disposed in the lower part 103 of the nacelle 100, via a speed variator 109 controlled by a receiver 110 which communicates with a transmitter not shown, manipulated by the pilot of the flying machine.
• the nacelle includes a 111 servomotor commanding the warping of the airfoil 5 and a servomotor 112 controlling the depth 9.
• the servomotor 111 actuates a lever not shown at the end of which the two lines 8 are connected (detachably to allow separation between the lifting part 1 and the nacelle 1), so that a rotation of the lever causes the tension of one of the lines and the loosening of the other.
• the servomotor 112 actuates a lever not shown at the end of which is articulated (detachably) the rod 11, so that the lever forms with the rod 11 and the return 10 a deformable parallelogram.
• one or both of the servomotors can be arranged directly on the lift part 1.
• An electrical connection must then be provided between the nacelle 100 and the lift part 1, in order to allow the electrical connection between the remote servomotors on the lifting part and the receiver 110.
• the lower part 103 of the nacelle 100 extends away from the fixing member 102 beyond the disc swept by the propeller 106, and is protruding forward so as to present an apex 113 which forms a privileged point of contact with the ground in the event of a crash.
• the flying machine then tilts forward around the apex 113 until the point 4 of the lift part itself comes into contact with the ground.
• the parts in contact with the ground are thus minimized, and the consequences of a crash are reduced.
• the arms 114 which extend laterally from the nacelle 100 moreover prevent direct contact of the blades of the propeller 106 with the ground in the event of lateral tilting.
• the shape of the nacelle 100 therefore offers total protection of the propeller 106 against contact with floor.
• the apex 113 also forms a grip zone for manual catching up in flight of the flying machine.
• the propeller 106 being propelled, it does not constitute a danger for the one who catches the flying machine in flight, if ever the electric motor 105 could not, for some reason, be stopped. Catching up is further facilitated by the fact that during the approach phase, the flying machine can be forced to a low flight speed.
• the nacelle carries a camera (for example a camera) either in a removable removable box 115 located in the lower part 103 of the nacelle 100 for shots along a vertical axis, or, as shown in dotted lines in FIG. 2, at the end of a support 116 fixed on the elongated part 101 of the nacelle 100, for taking pictures along an oblique axis.
• the shooting can be controlled electrically, or mechanically by means of a dedicated servomotor which is arranged to push on the shutter release button.
• the camera can be powered by the accumulator 108, or have an autonomous power supply.
• the flying object is preferably arranged to carry a digital camera (not shown) associated with a transmitter in real time, so that the pilot can appreciate the position of the flying object relative to the objective and the effect of his commands on the flight of the craft.
• the digital camera has an optical axis which is parallel to the optical axis of the camera.
• the center of gravity of the nacelle 100 is distant from the fixing member 102 because the heavy members (accumulator 108, electric motor 105) are located in the lower part 103 or close to it.
• This downward offset from the center of gravity causes the creation of a torque tending to recall the flying machine towards a stable flight attitude (defined by the position of the levers of the servomotors 111 and 112) each time it is removed from it, for example by the effect of the atmospheric turbulence.
• the restoring torque is all the stronger the greater the offset of the center of gravity, all other things being equal. It will therefore be beneficial to concentrate the heavy parts at the lower end of the nacelle 100.
• the large wing area of the lift part 1 associated with its great stability gives the flying machine appreciable gliding performance which makes it possible to stop the electric motor 105 when taking pictures, to prevent the vibrations generated by the 105 electric motor and 106 propeller do not affect the sharpness of the shots.
• lift part has been illustrated here as being of the Delta wing type with movable leading edges, any other type of lift part is envisaged within the framework of the invention, such as for example a lift part comprising a cantilever wing associated with a tail and a fin.
• the propulsion unit has been described here as an electric motor, the invention also covers the use of a heat engine.
• the payload is here a camera, it is obvious that this load can also be constituted by other types of sensors (such as thermal, infrared or radar sensors), without going out of the scope of the invention.
• the shape of the nacelle is adapted to its manual take-up, it will be possible, within the framework of the invention, to equip the nacelle with a landing gear.

Landscapes

• Wind Motors (AREA)
• Toys (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=8869517

Family Applications (1)

Country Status (5)

Families Citing this family (6)

Family Cites Families (8)

• 2001
  • 2001-11-19 FR FR0114914A patent/FR2832383B1/fr not_active Expired - Fee Related
• 2002
  • 2002-11-14 WO PCT/FR2002/003890 patent/WO2003043885A1/fr not_active Application Discontinuation
  • 2002-11-14 EP EP02793233A patent/EP1446323A1/de not_active Withdrawn
  • 2002-11-14 AU AU2002358893A patent/AU2002358893A1/en not_active Abandoned
  • 2002-11-14 US US10/495,339 patent/US20050014445A1/en not_active Abandoned

Non-Patent Citations (1)

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