JPH0446799Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a model airplane that is equipped with a power device using a motor connected to a battery and a wireless remote control mechanism, and in particular, the invention relates to a model airplane that is equipped with a power device using a motor connected to a battery and a wireless remote control mechanism. To provide a model airplane whose structure is simplified so that it can be operated.

``Prior Art'' Conventionally, in a model airplane that includes a battery and a motor 12 connected to the battery in the fuselage 11, and uses this as a power device for the propeller 13, the propeller 13 is operated during powered flight.
The output shaft X1 of the motor 12 is tilted at an angle θ (for example, approximately 2 degrees to the right) with respect to the machine axis line X in order to cancel out the torque reaction caused by the rotation of the motor and the influence of the propeller wake. In addition, when a radio control device is configured in this, an operating mechanism is configured to control the flight attitude of the aircraft by moving the main wings or tail, and an operating device is also provided to adjust the output of the motor to adjust the flight altitude. It was composed.

``Problem that the invention aims to solve'' However, according to the structure of the conventional model airplane mentioned above, even if the simplest circuit is adopted as a radio control device, at least two channels are required as independent signal transmission paths. Therefore, since a servo mechanism is attached to each channel, the structure becomes complicated, the number of parts is large, and assembly is troublesome, resulting in high cost.In addition, the weight becomes relatively heavy, and flight performance is hindered. It had

"Means for Solving the Problems" The present invention eliminates the drawbacks of the conventional type described above, and includes a main wing and a tail fixed to the aircraft body,
In a model airplane equipped with a motor connected via a battery and a switch element, the switch element is equipped with a wireless one-channel remote control mechanism, and the motor connects an output shaft for driving a propeller to the aircraft body. It is approximately parallel to the machine axis.

"Operation" In the above configuration, the switch element is
It can be easily operated by a remote control mechanism of the channel, and by this operation, at least the power of the motor can be turned on and off, the thrust can be switched, and the flight altitude can be adjusted. Furthermore, by arranging the output shaft for driving the propeller of this motor approximately parallel to the axis of the aircraft, the aircraft turns slightly to the left due to the reaction of the torque and the wake of the propeller when the motor rotates. Indicates flight characteristics,
Utilizing this flight characteristic during powered flight, it is possible to change the direction of the aircraft and fly it.

``Example'' The present invention will be explained with reference to an example shown in the figure below. 1 is the fuselage of a model airplane;
is equipped with fixed main wings 2 and tail 3, and the aircraft 1
Inside are a battery 4, a controller 5 including a switch element connected thereto, a motor 6, and a one-channel receiver 7 for remote control of the controller 5.
has been established. In addition, the motor 6 has a propeller 8.
At the same time, the output shaft 61 is connected to the fuselage 1.
It is made substantially parallel to the machine axis line X.

With the above configuration, by operating the transmitter 9 for the receiver 7, a required signal is received via the receiver 7, and the switch element of the controller 5 is controlled to turn on and off based on the signal. , the motor 6 can be controlled on and off by the power of the battery 4 connected thereto.

However, when the motor 6 rotates, as shown in FIG.
Under the influence of the reaction of the torque of the motor 6 and the wake of the propeller, a force in the opposite direction to the rotation of the propeller 8 acts, and the aircraft 1 can turn to the left while rising.

Next, when the motor 6 stops, as shown in Figure 2b, the torque reaction due to the rotation of the motor and the influence of the propeller wake disappear, and the propeller 8 rotates freely due to the wind, and the aircraft 1 continues to glide. Go straight and descend.

``Effect of the invention'' As described above, by simply controlling the motor on and off using a single-channel remote control device, the aircraft can ascend and turn when the motor rotates, and descend in a straight line when the motor stops. . By adjusting the on/off timing of this motor, the aircraft can be raised or lowered as desired, and the aircraft can be made to fly in any direction using the turning during the ascent.

In addition, in the above configuration, since it is only necessary to control the motor on and off, the signal transmission path for remote control only needs to be one channel, which simplifies the structure, reduces the number of parts, simplifies assembly, and reduces costs. At the same time, the weight becomes relatively lighter,
Flight performance can also be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a model airplane showing an embodiment of the present invention, and FIG.
FIG. 3 is a plan view of the main part of the nose of the aircraft, and FIG. 4 is a plan view of the main part of the nose of a conventional model airplane. In the figure, 1 is the fuselage, 2 is the main wing, 3 is the tail, 4 is the battery, 5 is the controller, 6 is the motor, 7 is the receiver, 8
is a propeller, 61 is an output shaft, and X is a machine axis line.

Claims (1)

[Scope of utility model registration request] In a model airplane comprising a main wing and a tail fixed to the fuselage, and a motor connected via a battery and a switch element, the switch element is equipped with a wireless one-channel remote control mechanism, and the motor is connected to a propeller. A model airplane characterized in that an output shaft for driving the airplane is substantially parallel to the axis of the airplane.