Radio control helicopter toy

Abstract

The present invention provides a radio control helicopter toy including a mast mounted projecting to the upper side of an airframe so as to be rotated by a main motor, a rotor mounted on the upper part of the mast via a rotor head with the blade surface of a rotor blade capable of inclining, a blade inclining mechanism having an arm with one end part side thereof mounted rotatably on the airframe side and the other end part side thereof is mounted to be driven to approach to the above-mentioned rotor head side by an actuator, for inclining the blade surface of the above-mentioned rotor by the magnetic force generated between magnets mounted on the end part of the arm and the above-mentioned rotor head or between a magnet and a ferromagnetic material, and a receiver loaded on the above-mentioned airframe for controlling the operation of the above-mentioned main motor and the actuator.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a radio control helicopter toy, the movement control thereof is performed with remote control. [0003] 2. Description of the Related Art [0004] Conventionally, for the movement control of a helicopter, movement can be made in front and back, right and left directions by inclining the blade surface of a rotor provided on the aircraft. For inclining the blade surface of such a rotor, in the real helicopter, a mechanism for inclining the blade surface by interlocking a swash plate, rotating together with the rotor, with the blade via a link is adopted. This kind of the rotor blade surface inclining mechanism by a swash plate is adopted also for a movement control for a helicopter toy. For example, a technique related to a radio control helicopter with co-axial rotors, that is upper and lower rotor heads rotating in the opposite directions are provided concentrically, wherein the inclinin...

AI Technical Summary

Benefits of technology

[0006] The present invention has been achieved in view of the above-mentioned circumstances, and an object thereof is to provide a radio control helicopter toy capable of providing a mechanism for the movement control in a simple structure so as to be produced at low cost.

[0007] In order to achieve the above-mentioned object, a first aspect of the present invention includes: a mast mounted projecting to the upper side of an airframe so as to be rotated by a main motor loaded on the airframe; a rotor mounted on the upper part of the mast via a rotor head with the blade surface of a rotor blade capable of inclining; a blade inclining mechanism having an arm with one end part side thereof mounted rotatably on the airframe side and the other end part side thereof is mounted to be driven to approach to the above-mentioned rotor head side by an actuator loaded on the above-mentioned airframe, for inclining the blade surface of the above-mentioned rotor by the magnetic force generated between magnets mounted on the end part of the arm and the above-mentioned rotor head or between a magnet and a ferromagnetic material; and a receiver loaded on the above-mentioned airframe for controlling the operation of the above-mentioned main motor and the actuator. Since the rotor blade surface is inclined by the magnetic force, the conventional inclining mechanism by a swash plate can be eliminated so that the mechanism for the movement control can be provided in a simple structure as well as it can be produced at low cost.

[0008] In a second aspect of the present invention, the above-mentioned mast has an upper mast and a lower mast to be rotated concentrically in the opposite directions by the above-mentioned main motor; the above-mentioned rotor has an upper rotor mounted on the upper part of the above-mentioned upper mast via an upper rotor head with the blade surface of the upper rotor blade capable of inclining and a lower rotor mounted on the upper part of the above-mentioned lower mast via a lower rotor head with the blade surface of the lower rotor blade capable of inclining; and the above-mentioned blade inclining mechanism is provided on the above-mentioned airframe for inclining the blade surface of the above-mentioned lower rotor. In a helicopter toy having an upper mast and a lower mast to be rotated concentrically in the opposite directions, the movement control mechanism can be provided in a simple structure as well as it can be produced at low cost.

[0009] In the third aspect of the present invention, a stabilizer for controlling the flight attitude of the above-mentioned airframe is mounted on the above-mentioned upper mast so as to interlock with the above-mentioned upper rotor head. According to the stabilizer, the attitude of the airframe can be maintained stably.

[0011] In the fifth aspect of the present invention, a tail pipe is mounted on the rear side of the above-mentioned airframe and a tail rotor to be driven by a tail motor is mounted on an end part of the tail pipe. With the tail rotor, the airframe turnover can be prevented as well as the airframe can be controlled in the right and left directions.

[0013] Since a mast mounted on the upper side of an airframe so as to be rotated by a main motor loaded on the airframe, a rotor mounted on the upper part of the mast via a rotor head with the blade surface of a rotor blade capable of inclining, a blade inclining mechanism having an arm with one end part side thereof mounted rotatably on the airframe side and the other end part side thereof is mounted to be driven to approach to the above-mentioned rotor head side by an actuator loaded on the airframe, for inclining the blade surface of the above-mentioned rotor by the magnetic force generated between magnets mounted on the end part of the arm and the above-mentioned rotor head or between a magnet and a ferromagnetic material, and a receiver loaded on the above-mentioned airframe for controlling the operation of the above-mentioned main motor and the actuator are provided, the rotor blade surface can be inclined by the magnetic force so that the mechanism for the movement control can be provided in a simple structure as well as it can be produced at low cost.

Problems solved by technology

However, since the outside part is connected with an actuator mounted on the airframe for controlling the inclining of the swash plate with a link, it cannot be rotated.

Therefore, a highly sophisticated part such as a ball bearing is required for the inside and the outside of the swash plate, and the structure is also complicated.

Moreover, since the all parts from an actuator to the rotor head are connected via links, the structure is extremely complicated as well as the number of parts is large so that the cost may be increased as a whole.

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