KR200243023Y1 - A model glider for education - Google Patents

Abstract

The purpose of the present invention is to attach the main wing and the horizontal / vertical tail wing to the body of the model glider, and to form the wing on each wing, the auxiliary wing for tilting the model glider to the left and right, and the lift and model glider to raise / lower the model glider. It is to provide a learning model glider that can learn the principle of flight while checking the change in the flight direction according to the position of the auxiliary wing, elevator, rudder by adjusting the rudder to turn.

The present invention for achieving the above object is a long rod shape and the front end portion of the fuselage (10) with a built-in balance member 12, attached to both sides of the central portion of the fuselage, so that the rear end can be adjusted up / down The auxiliary wing 31 is formed with a main wing 30, the horizontal tail wing 40 is attached to both sides of the tail portion of the fuselage and the rear end 41 is formed to be able to adjust the up / down, and the body Attached to the upper tail portion and the rear end is made of a vertical tail wing 50 is formed with a rudder 51 to enable left / right adjustment.

Description

A model glider for education}

The present invention relates to a training model glider, and more specifically, the force acting on the model glider while checking the glider's flight direction by adjusting the auxiliary and horizontal / vertical vane and rudders installed on the model glider. It relates to a learning model glider that can learn changes in gravity, thrust, and drag).

Generally, the plane serves to fix the main wing and the horizontal / vertical tail wing as shown in FIG. 1, and a lifting force gliding the plane is generated at the distal end of the fuselage 1 having a built-in balance member 2. Main blade (3) to maintain the stability in the left / right direction, the horizontal tail wing (4) to adjust the flight direction up and down while lifting force is generated and maintains the forward / backward stability, and maintain the rotational direction stability And it consists of vertical tail wings (5) for turning the plane left / right.

On the other hand, in order to fly the plane in the desired direction to adjust the auxiliary wing (6) and the horizontal wing (4) and vertical tail (5) installed in the main wing (3), respectively, to adjust the rudder (8) and elevating rudder (7) do.

The auxiliary wing 6 is inclined left / right about the longitudinal axis of the fuselage 1 of the plane, and the plane is inclined left / right by operating in opposite directions.

The elevating rudder 7 causes the plane to move up or down about the longitudinal axis of the main blade 3.

The rudder 8 causes it to pivot about the vertical axis of the body 1.

The force applied to each wing of the plane is generated by air pressure and friction according to the air flow, and the air flow directly affects the flight, and the plane is lifted by using the plane.

This correlation between airflow and pressure is called Bernoulli's theorem, which means that the faster the flow of air, the lower the pressure, and the slower the flow, the higher the pressure.

Looking at the pressure generated by the flow of air acting on the wing of the airplane as shown in FIG.

Figure 2 is a cross-sectional view showing the flow and pressure of the air acting on the wing of a typical plane, the upper surface of the wing is a slight curved surface, the lower surface is generally flat.

When the air flows on the wing of the plane, the air flow on the upper surface of the wing becomes faster and the lower pressure acts, and the air flow on the lower surface becomes slow and the high pressure acts. In other words, the pressure applied to the lower surface is relatively higher than the upper surface to generate a force (lift) to hold up.

Therefore, the shape of the wing section of the plane is different depending on the plane. The low-flying glider has a thicker wing section, but the wings of a fast fighter are relatively thin.

On the other hand, the model glider, as shown in Figure 3, the vortex generated from the lower surface of the blade slows the flow of air to increase the pressure on the lower surface to generate the lift.

As shown in FIG. 4, gravity, lift, thrust, and drag act on the plane.

Gravity is the force to fall down by earth's gravity (weight), which is the most basic of the four forces. The less weight the airplane has, the better it can benefit from lift or thrust.

Lift is the most important force that overcomes gravity and lifts the plane from the ground. The better lift, the greater the weight.

Thrust is the driving force that drives the airplane forward.

Drag is a frictional force created by the flow of air, which acts in the opposite direction of the plane's forward direction. In order to reduce the resistance (friction) of the air, the aircraft body is streamlined like a car.

Therefore, when the above four forces are balanced, the plane performs horizontal flight at a constant speed, and moves up or down by adjusting the amount of lift and accelerates or decelerates by adjusting thrust.

Various types of model gliders that fly using the airplane's flight principle have been produced.

These model gliders are braided with elastic model glider and propeller blades, which are divided into towing-type gliders that are floated by using the user's arm force and the speed generated by running the thread. The rubber band is divided into rubber power glider which gains propulsion by loosening force.

All of these types of model glider are provided with a long wooden rod body, a balance member having a constant weight at the front end of the body, and main wings and tail wings at the center and rear ends of the body.

The main wing is provided in the middle of the fuselage to obtain the balance and lift of the glider, and the tail wing is provided with a vertical tail wing for adjusting the flight direction of the glider and a horizontal tail wing for adjusting the flight height.

On the other hand, in the case of a rubber power model glider, a propeller and a leg are provided, and a rubber band unit is connected to the propeller and the rear wing.

In the conventional model glider, the non-powered model glider is held by the user by holding the center portion of the fuselage and using the force of the arm, and the toeline model glider floats the model glider by the speed of running on the thread.

In addition, rubber power model glider using elastic power allows the user to twist and wind the rubber unit by turning the propeller in the rotational direction to fly the model glider to the sky. At this time, as the elastic unit is wound, the power is stored by the elastic force of the elastic unit itself, so when the propeller is freely released thereafter, the elastic unit is released and the propeller rotates at a high speed by the stored power.

As the propeller at the tip of the fuselage rotates at a high speed, the air is rapidly moved by the propeller to the rear of the fuselage to generate wind, and the wind is lifted by the wing to fly to the sky by raising the glider.

However, such a conventional model glider is a smooth flight because the auxiliary wing for tilting the model glider to the left and right, the lifter for raising and lowering the model glider and the rudder for turning the model glider remain fixed even if not separately provided or provided. Only flight is possible and the wind is difficult, so the flight time is shortened.

In addition, there was a problem in that the flight direction of the model glider could not be confirmed due to the adjustment of the auxiliary wings, the lift rudder and the rudder, so that the flight principle could not be learned.

The present invention was devised to solve the above problems, and its purpose is to attach the main wing and the horizontal / vertical tail wings to the fuselage of the model glider, and to form the wing and to tilt the model glider to the left and right. It is to provide a learning model glider that can learn the principle of flight while checking the change of the flight direction according to the position of the auxiliary wing, the lifter and the rudder by adjusting the rudder for turning up / down the glider and the model glider. .

1 is a schematic view showing a typical airplane.

2 is a cross-sectional view showing the flow of air acting on the wing of a typical airplane.

3 is a cross-sectional view showing the flow of air acting on the wing of a typical model glider.

4 is a perspective view showing a force acting on a general airplane.

5 is a part view of a model glider according to the present invention.

6 is an assembled perspective view of the model glider according to the present invention.

Figure 7 is a perspective view of a state of adjusting the flight direction of the model glider according to the present invention.

※ Explanation of symbols about main part of drawing ※

10: body 12: balance member

30: main wing 31: auxiliary wing

33: folding surface 40: horizontal tail wing

41: lift 50: vertical tail wing

51: rudder

The characteristic configuration of the present invention learning powerless model glider for achieving the above object is as follows.

The training model glider of the present invention has a long rod shape and a main body with a balancing member built into the front end, and a main wing having auxiliary wings formed on both sides of the central part of the body and capable of adjusting up / down at the rear end, and Horizontal tail wings are attached to both sides of the tail of the fuselage and the rear end is provided with elevating rudders, and vertical tails are attached to the upper part of the tail of the fuselage and rudders are formed at the rear end to permit left / right adjustment. It consists of wings.

Referring to the present invention having such characteristics in detail as follows.

Figure 5 is a part of the model glider according to the present invention, Figure 6 is an assembled perspective view of the model glider according to the present invention.

As described herein, the present invention is made of a light material such as wood or synthetic resin material, and has a body 10 having an insertion hole 11 formed at its tip, and is inserted into the insertion hole 11 to maintain a balance of the model glider. Balance member 12, a component plate of paper material showing the shape of the wings and side plates attached to the fuselage 10, and the fuselage to prevent the tip of the fuselage 10 from being damaged when the model glider falls. It consists of a rubber-like elastic member 60 is coupled to the front end portion of the (10) via the pin (61).

The part plate can cut out a pair of side plates 20, the main wing 30, the horizontal tail wing 40, the vertical tail wing 50, the auxiliary plate 32 attached to both sides of the body 10. The solid lines and the dashed lines that fold are shown.

Accordingly, the side plates 20 are formed on both sides of the fuselage 10 in a state in which each part is cut out along the solid line marked on the component plate and the balance member 12 is inserted into the insertion groove 11 of the fuselage 10. After attaching to each other, the supporting pieces 21 formed on the center upper side of the side plate 20 are folded to face the outer side of the body 10.

On the other hand, in the upper center of the body 10 is folded along the dotted line so that the vortex is generated on the lower surface of the auxiliary plate 32 and attached so that the upper half angle is maintained and the main blade 30 is attached to the upper surface of the auxiliary plate 32, It is attached in the state which folded along the dotted line so that the folding surface 33 may be folded.

And the horizontal tail wing 40 is attached to the rear end of the fuselage 10, the vertical tail wing 50 is attached to the center portion of the horizontal tail wing 40 is the assembly of the model glider is completed.

Meanwhile, in order to prevent the body 10 from being damaged by the impact generated when the model glider falls, a method of press-fitting the pin 61 attached to the elastic member 60 made of rubber material at the tip of the body 10 is prevented. The elastic member 60 is fixed thereto.

When flying the assembled model glider as described above, when the user grabs the center part of the fuselage 10 and blows it with the force of the arm, the model glider generates gravity, lift, thrust, and drag to fly, depending on the flying state of the model glider. The auxiliary blade 31 and the elevating rudder 41 are moved up and down and the rudder 51 is moved left and right to adjust the balance.

When the model glider falls, the front end portion of the fuselage 10 is in contact with the ground, and an impact is generated. The impact force generated at this time is buffered by the elastic member 60 fixed to the tip of the body 10, and the fuselage 10 is formed. Is prevented from being broken.

For example, if the model glider falls immediately, the tip of the model glider is directed downward, so that the auxiliary wing 31 formed on the main wing 30 and the elevator 41 formed on the horizontal tail wing 40 are slightly moved upward. If the glider repeatedly moves up and down like a wave, the tip portion is directed backward, and thus, when the auxiliary wing 31 and the elevating rudder 41 are moved to the lower part slightly, the flight of the model glider can be stably maintained.

In addition, when the model glider turns to the left / right by slightly moving in the opposite direction to turn the rudder 51 formed on the vertical tail wing 50 will be able to prevent the turning flight of the model glider.

In this way, the up / down movement of the auxiliary wing 31 and the elevating rudder 41 can be adjusted to control the up / down flight of the model glider, and the left / right turning flight of the model glider can be adjusted by the left / right movement of the rudder 51. Therefore, if the user moves the auxiliary wing (31), elevator (41), rudder (51) and then blows the model glider, the four basic forces (gravity, lift, thrust, drag) acting when the model glider (airplane) is flying ) Will be able to observe the change.

This invention has the unique effect that users, especially children, can learn the change in force acting on the model glider while observing the change in the direction of flight of the model glider by directly moving the auxiliary wings, elevators and rudders. There is.

Claims (3)

The body 10 has a long rod shape and a balance member 12 is built in the tip portion thereof; The main wing 30 is attached to both sides of the central portion of the fuselage and has a secondary wing 31 formed at the rear end thereof to enable the up / down adjustment, Horizontal tail wings 40 are attached to both sides of the tail of the fuselage and the rear end 40 is provided with a lifting rudder 41 so as to be able to adjust up and down, The model glider for learning, characterized in that it is attached to the upper tail portion of the fuselage and the rear end is made of a vertical tail wing 50 formed with a rudder 51 to enable left / right adjustment. The learning model glider according to claim 1, wherein a plurality of folding surfaces (33) are formed in the width direction at the distal end portion so that vortices occur on the lower surface of the main blade. The training model glider according to claim 1, wherein a rubber material elastic member (60) is attached to the tip portion of the fuselage to prevent the tip portion of the fuselage from being damaged.