KR200299495Y1 - Free flight shape of twin-prop plane - Google Patents

Abstract

The present invention prevents twisting by reinforcing the part where the main wing and the two fuselage are connected by using a light material, so that the loss of the weight is not great even if a twin-engine is manufactured, and the main wing has a two-stage upper half angle to control rolling. A rubber power twin-coilable, comprising: a first body and a second body consisting of a boom; Connecting means connecting the first body and the second body, the upper and lower parts of which are covered with a reinforcing member; First and second propellers attached to front ends of the fuselage bodies; Drive means connected to each of the propellers and the fixed hooks provided at the rear ends of the fuselage to drive the propellers with elastic force; Landing means mounted to the front of each fuselage; A main blade connected to the upper body by the connecting means and bent upward toward a wing tip; Horizontal fins connecting rear ends of the bodies; And it provides a rubber power twin-engine comprising a vertical tail mounted in a direction perpendicular to the horizontal tail.

Description

Rubber Power Twin Twin {FREE FLIGHT SHAPE OF TWIN-PROP PLANE}

The present invention relates to a rubber power twin, particularly to a rubber power twin that can reduce the torsion caused by the torque generated by the rotation of the two propellers, and control the rolling phenomenon.

In general, the rubber power unit is made in the form of a single claw, and the main wing is made of a skin having a camber without thickness. When the rubber power unit is made in the form of a twin motor, as shown in FIG. 1, the torsion of the fuselage is caused by the torque generated by the two propellers, and the core portion of the main blade is the backlash and skin used for the main blade of the rubber motor. Since it is not possible to support warping by itself, it is necessary to add heavy and hard reinforcing materials such as wood. However, the addition of such a reinforcing material has a problem in that the weight of the plane to reduce the flight performance.

In addition, when a torsion phenomenon occurs due to the torque during flight, there is a problem that can not be stable flight due to the rolling occurs as the angle of attack of the left and right main wing is changed.

Therefore, the present invention has been devised to solve the above problems, by reinforcing the portion connecting the main wing and the two fuselage with a light material to prevent the twist, even if the twin-engine production is not a large loss by weight, The main wing has a two-stage upper half angle, the purpose is to provide a rubber-powered twin motor that can control the rolling.

1 is a front view showing a torque generating portion of the rubber power twin.

Figure 2 is a perspective view showing the configuration of a rubber power twin twin according to the present invention.

Figure 3 is an exploded perspective view showing the configuration of the rubber power twin twin according to the present invention.

Figure 4 is a perspective view showing a connecting frame of the main wing which is the main part of the present invention.

Figure 5a is a perspective view showing a state covered with a reinforcing member on the connecting frame of FIG.

Fig. 5B is a side view showing a cross section of the reinforcing member of Fig. 5A.

Figure 6 is a perspective view of the wing frame of the rubber power twin twin according to the present invention.

* Description of the main parts of the drawings

10, 11 propeller 12, 13 propeller mounter

20, 100: main wing 30: horizontal wing

31, 32: vertical tail 40, 41: fuselage

110: connecting frame 140, 150: main wing support

In order to achieve the above object, the present invention is the first body and the second body consisting of a boom (boom); Connecting means connecting the first body and the second body, the upper and lower parts of which are covered with a reinforcing member; First and second propellers attached to front ends of the fuselage bodies; Drive means connected to each of the propellers and the fixed hooks provided at the rear ends of the fuselage to drive the propellers with elastic force; Landing means mounted to the front of each fuselage; A main blade connected to the upper body by the connecting means and bent upward toward a wing tip; Horizontal fins connecting rear ends of the bodies; And it provides a rubber power twin-engine comprising a vertical tail mounted in a direction perpendicular to the horizontal tail.

Hereinafter, a rubber power twin device according to the present invention will be described with reference to FIGS. 2 to 6.

As shown in Figures 2 and 3, the rubber power twin twin according to the present invention is the first body 40 and the second body 41 consisting of a boom (boom); A connection frame 110 connecting the first and second bodies 40 and 41; First and second propellers (10, 11) attached to front ends of the fuselage (40, 41); Two rubber bands 43 connected to the fixed hooks 44 provided at the rear ends of the propellers 10 and 11 and the fuselage 40 and 41 to drive the propellers with elastic force; A landing gear 43 mounted in front of the fuselage 40 and 41, respectively; A main wing (100) connected to each of the fuselage (40, 41) above by the connection frame (110); A horizontal fin (30) connecting rear ends of the angle bodies (40, 41); And vertical tails 31 and 32 mounted in a direction perpendicular to the horizontal tail 30.

The main blade 100 is connected to the first body 40 and the second body 41 by the connecting frame 110, the upper portion of the connecting frame 110 is horizontal, but the upper side toward the wing tip (wing tip) It is bent twice so as to be bent.

As shown in FIG. 4, the connecting frame 110 includes a first connecting beam 141 to be connected to the first body 40 and a through hole 161 into which the main blade is inserted. One wing support 140; A second main blade support 150 having a second connection beam 151 to be connected to the second body 50 and having a through-hole 162 into which the main blade is inserted; A leading edge 160 connecting the front ends of the first main supporter 140 and the second main supporter 150 to each other; A trailing edge 161 connecting the rear ends of the first main blade support 140 and the second main wing support 150 to each other; And a reinforcing rib positioned at the center of the leading edge 160 and the trailing edge 161 to form an airfoil.

5a and 5b, the upper portion of the connection frame 110 is made of balsa or styrofoam material so as to withstand the torque caused by the propeller, the rotation and the lifting force generated in the main wing, while being relatively light. The upper and lower portions of the member 180 are covered, and as shown in FIG. 5B, the reinforcing member 180 has a honey-comb structure formed in an airfoil shape in order to minimize weight and maximize lifting force. Can be done.

As shown in FIG. 6, the horizontal fin 30 is connected to the first fuselage 40 and can connect the first vertical fin 31 to the lower side thereof, and has a streamlined first connection member 34; And a second connecting member 35 connected to the second body and capable of connecting the second vertical fin 32 to the lower side, and formed in a streamlined shape. In addition, a horizontal tail rib 33 is provided at the center to maintain the camber shape of the horizontal tail 30.

Referring to the operation and effect of the rubber-powered twin plane configured as described above, as follows.

The main blade bent in two stages is generated on the left and right sides of the main wing according to the attitude of the plane even if rolling and yawing phenomena may occur due to the difference in the thrust of the first and propellers 10 and 11 and the torque. The lift distribution changes, which increases the flight stability of the twin-engine.

Lightweight firing or styrofoam is formed in a honeycomb structure to reinforce between the first fuselage 40 and the second fuselage 41 of the twin turbine, thereby supporting the torsion due to the torque generated by the rotation of the propeller, thereby allowing flight performance. Increase

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, according to the present invention, by providing a reinforcing member having a lightweight honeycomb structure between the first and second bodies, there is an effect of being able to support the torsion due to the torque of the propeller while being light.

In addition, there is another effect that can increase the flight stability of the rubber power twin.

Claims (6)

A first body and a second body made up of a boom; Connecting means connecting the first body and the second body, the upper and lower parts of which are covered with a reinforcing member; First and second propellers attached to front ends of the fuselage bodies; Drive means connected to each of the propellers and the fixed hooks provided at the rear ends of the fuselage to drive the propellers with elastic force; Landing means mounted to the front of each fuselage; A main blade connected to the upper body by the connecting means and bent upward toward a wing tip; Horizontal fins connecting rear ends of the bodies; And Vertical fins mounted in a direction perpendicular to the horizontal fins Rubber power twin device comprising a. The method of claim 1, The reinforcing member of the connecting means is made of firing Rubber power twin. The method of claim 1, The reinforcing member of the connecting means is made of styrofoam Rubber power twin. The method of claim 1, The reinforcing member Characterized in that the cross section is an airfoil shape Rubber power twin. The method according to any one of claims 1 to 4, The reinforcing member is made of a honey-comb structure Rubber power twin. The method according to any one of claims 1 to 4, The main blade is bent in two stages, characterized in that the curved upwards toward the wing tip Rubber power twin.