Toy Helicopter
AssigneeSilverlit Toys Manufactory, Ltd.
InventorAlexander Jozef Van De Rostyne
Life of this patent
Estimating the term…
Abstract
A helicopter has a main rotor with propeller blades which is driven by a rotor shaft and which is hinge-mounted to this rotor shaft. The angle between the surface of rotation of the main rotor and the rotor shaft may vary. A swinging manner on an oscillatory shaft is essentially transverse to the rotor shaft of the main rotor and is directed transversally to the longitudinal axis of the vanes. The main rotor and the auxiliary rotor are connected to each other by a mechanical link. The swinging motions of the auxiliary rotor controls the angle of incidence (A) of at least one of the propeller blades of the main rotor. There are wings from the body and a stabilizer at the tail.
Claims20
A toy helicopter comprising a body with a tail;
- a unitary one piece main rotor having two propeller blades which is driven by a rotor shaft on which main rotor is mounted;
- a tail rotor which is driven by a second rotor shaft directed transversally to the rotor shaft of the main rotor;
- an auxiliary rotor driven by the rotor shaft of the main rotor in the sense of rotation of the main rotor, the auxiliary rotor being mounted in a swinging relationship on an oscillatory shaft provided essentially transverse to the rotor shaft of the main rotor and the swinging motion being relatively upwardly and downwardly about the oscillatory shaft, the main rotor and the auxiliary rotor having planes of rotation spaced of each other and being linked with each other by a mechanical linkage, such that the swinging motion of the auxiliary rotor controls an angle of incidence of the propeller blades of the main rotor.
A toy helicopter comprising a body with a tail;
- a unitary one piece main rotor having two propeller blades which is driven by a rotor shaft on which main rotor is mounted for rotation of the main rotor in a single plane about the rotor shaft;
- a tail rotor which is driven by a second rotor shaft directed transversally to the rotor shaft of the main rotor;
- an auxiliary rotor spaced from the main rotor and driven by the rotor shaft of the main rotor in the sense of rotation of the main rotor, the auxiliary rotor being mounted in a swinging relationship on an oscillatory shaft provided essentially transverse to the rotor shaft of the main rotor and the swinging motion being relatively upwardly and downwardly about the oscillatory shaft, the main rotor and the auxiliary rotor having planes of rotation spaced of each other and being linked with each other by a mechanical linkage, such that the swinging motion of the auxiliary rotor controls an angle of incidence of the propeller blades of the main rotor.
A toy helicopter comprising a body with a tail;
- a rigid main rotor having two propeller blades which is driven by a rotor shaft on which main rotor is mounted;
- a tail rotor which is driven by a second rotor shaft directed transversally to the rotor shaft of the main rotor;
- an auxiliary rotor driven by the rotor shaft of the main rotor in the sense of rotation of the main rotor, the auxiliary rotor being mounted in a swinging relationship on an oscillatory shaft provided essentially transverse to the rotor shaft of the main rotor and the swinging motion being relatively upwardly and downwardly about the oscillatory shaft stabilizing flight condition of the helicopter without user intervention, the main rotor and the auxiliary rotor having planes of rotation spaced of each other and being linked with each other by a mechanical linkage, such that the swinging motion of the auxiliary rotor controls an angle of incidence of the propeller blades of the main rotor.
Dependencies are inferred from the claim text.