Rotary-wing vehicle system and methods patent

• US 20060231677A1
• Filed: 11/02/2005
• Published: 10/19/2006
• Est. Priority Date: 11/05/2004
• Status: Active Grant

• Current Assignee: Avner Divon, Nachman Zimet
• Original Assignee: Avner Divon, Nachman Zimet
• Inventors: Zimet, Nachman, Divon, Avner
• Granted Patent: US 7,946,526 B2
• Time in Patent Office: Days
• US Class Current: 244/17.230
• CPC Class Codes: A63H 27/12 Helicopters A63H27/04 takes precedence; Flying tops
• CPC Class Codes: B64U 10/17 Helicopters flying platforms B64U10/13
• CPC Class Codes: B64U 2201/20 Remote controls
• CPC Class Codes: B64U 30/24 Coaxial rotors
• CPC Class Codes: B64U 40/10 for adjusting control surfaces or rotors

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; A rotary-wing coaxial helicopter toy that is remotely controlled and safe to fly in doors and out doors, while performing exciting maneuvers even by untrained kids

Claims

1. A coaxial Rotary-wing apparatus with at least two sets of counter rotating lifting blades, wherein said two sets of counter rotating lifting blades have same angular velocity with opposite directions, wherein said two sets of counter rotating lifting blades are located one above the other and wherein center of gravity of said coaxial Rotary-wing apparatus is positioned lower than said two sets of counter rotating lifting blades and wherein said coaxial Rotary-wing apparatus also comprising of:

Main power means, which drive said two sets of counter rotating lifting blades;

Auxiliary power means, which enable flying said coaxial Rotary-wing apparatus in at least following directions;

forwards, backwards, perform yawing;

Power control means for controlling the power applied to said two sets of counter rotating lifting blades and to said auxiliary power means.

2. A coaxial Rotary-wing apparatus as in claim 1 wherein there is no other external real-time control of said two sets of said counter rotating lifting blades other than their velocity control.

3. A coaxial Rotary-wing apparatus as in claim 1 wherein said Auxiliary power means are plurality of propellers that are located on opposite sides of said coaxial Rotary-wing apparatus and wherein said propellers face the direction of flight and wherein said propellers are located above the center of gravity of said coaxial Rotary-wing apparatus.

4. A coaxial Rotary-wing apparatus as in claim 3 wherein Bell-stabilizing means is connected to each of said sets of counter rotating lifting blades.

5. A coaxial Rotary-wing apparatus as in claim 4 wherein each of the sets of counter rotating lifting blades is connected to a main driving shaft using “

rigid head” and

wherein said “

rigid head”

enables pitch movements only.

6. A coaxial Rotary-wing apparatus as in claim 4 wherein lifting power center of said rotating lifting blades is located forward of the axis of the head which connects said blades to said driving main shaft.

7. A coaxial Rotary-wing apparatus as in claim 6 wherein said rotating lifting blades are swept forward.

8. A coaxial Rotary-wing apparatus as in claim 2 wherein the upper set of rotating lifting blades are different from the lower set of rotating lifting blades.

9. A coaxial Rotary-wing apparatus as in claim 8 wherein the upper set of rotating lifting blades differ from the lower set by at least one of the followings:

type of material, shape.

10. A coaxial Rotary-wing apparatus as in claims 2 and wherein its aeronautical stability is also in accordance to a combination of claims:

4, 5, 7, 8.

11. A coaxial Rotary-wing apparatus as in claims 10 and wherein coaxial Rotary-wing apparatus is a flying toy.

12. A coaxial Rotary-wing apparatus as in claim 4 that also consist of air brakes means and wherein said air brakes means are located below center of gravity of said coaxial Rotary-wing apparatus.

13. A coaxial Rotary-wing apparatus as in claim 4 that also consists of a tail fin, which provides an improved directional stability

14. A coaxial Rotary-wing apparatus as in claim 4 and wherein a single manual yaw tuning means is connected to one of said set of blades and wherein said tuning means adjusts collective pitch of said blades.

16. A coaxial Rotary-wing toy as in claims 11 and wherein flight of flying Rotary-wing toy is remotely controlled.

19. A coaxial Rotary-wing apparatus as in claim 2 wherein said Auxiliary power means is a single propeller facing direction of flight and wherein said single propeller controls forward and backwards movements of said Rotary-wing apparatus and wherein air-resistance means controls the yaw movements of said Rotary-wing apparatus.

20. A coaxial Rotary-wing apparatus as in claim 2 and wherein said coaxial Rotary-wing apparatus also comprising of manual-tuning means for forward/backwards position adjustment of center of gravity of said Rotary-wing apparatus.

15. A method for controlling the flight direction of a flying Rotary-wing toy using differential trust wherein said differential trust at least provide trust vectors associated with the flight plan and wherein said differential trust is located above center of gravity of flying Rotary-wing toy.

17. A method for connecting and disconnecting wings of a flying toy to a correct position using fast connection means, which does not require tools and wherein an external excessive force when applied to said blades will cause said blades to swept back, or disconnect.

18. A method as in claim 17 and wherein said flying toy is a Rotary-wing apparatus