KR101902698B1 - Morphing wing - Google Patents

Abstract

The present invention relates to a wing capable of changing a chord length and a camber of an airfoil by only rotational driving while maintaining a continuous surface to simplify a structure and enhance aerodynamic efficiency. According to the present invention, a wing is formed by interconnecting a plurality of ribs. Each rib comprises: a leading edge part; a trailing edge part; a plurality of slide intermediate parts coupled and disposed between the leading and trailing edge parts to be able to slide; and a wire connected from the leading edge part to the trailing edge part through each slide intermediate part. Each slide intermediate part is slid by winding or releasing one end of the wire, and forms a continuous surface with a curvature from the leading edge part to the trailing edge part.

Description

MORPHING WING

[0001] The present invention relates to a deformable wing, and more particularly, it relates to a wing capable of deforming a chord length and a camber of an airfoil only by rotation driving while maintaining a continuous surface, It is about wings that can be improved.

Generally, a fixed-wing aircraft is equipped with a high-power generator for generating steering force for changing the flight attitude and direction of the flight during flight, and for increasing lift during takeoff and landing.

Here, the high-lift generating device is a device for increasing the lifting force of an aircraft, which enables a high-speed aircraft to replenish the lift or take off at a low speed during take-off and landing.

The cross-sectional shape of the aircraft wing has a direct impact on the performance of the aircraft and should be designed to have optimal performance in aircraft design. That is, there are two types of wing cross section: low speed to generate high lift at takeoff and landing condition and high speed to have low drag at cruising condition. These two conditions can not be satisfied at the same time, so the optimal shape is determined through appropriate compromise.

In particular, the wing trailing edge has a great influence on the performance of the aircraft because it is exposed to the outside in both the cruise condition and the low speed condition where the high lifting device is folded.

Recently, researches have been actively carried out on techniques for applying the technique of deforming the trailing edge of the wing so that the aircraft has an optimal shape suitable for the flight conditions.

Generally, the steering force and the high lift generation apparatus are located at the rear of the wing in order to increase the lift force during the generation of the steering force and the landing, and change the acting air force of the mechanically separated flap, And generates high lift.

FIG. 1 is a view showing a configuration of a conventional rear wing rear warp deformation apparatus. As shown in FIG. 1, a rear wing A of a wing is conventionally detached and deformed.

As described above, since the trailing edge of the trailing edge of the trailing edge A is separated, a step is generated in the connecting portion to generate a discontinuous surface, and a drag force is generated on the discontinuous surface to degrade the aerodynamic efficiency.

In addition, since the number of parts required for separation from the wing structure increases, the size of the drag, which is the main cause of the increase in the weight and the loss of the propulsion force of the aircraft at the time of operation, becomes a major cause of fuel loss during operation of the aircraft, It can also cause increased maintenance costs.

U.S. Published Patent Application No. 2013-0146717 (published on June 13, 2013)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an airfoil having a simple structure and improved aerodynamic efficiency by enabling chord length and camber deformation of an airfoil The present invention is directed to providing a deformable wing that can be used as a wing.

According to an aspect of the present invention, there is provided a blade having a plurality of ribs connected to each other, the ribs each having a leading edge portion, a trailing edge portion, And a wire connected from the front front portion to the rear rear portion through the respective middle portions of the slides, wherein one end of the wire is wound or unwound, Wherein the middle portion of the slide is curved so as to form a continuous surface from the front portion to the rear portion.

A drive shaft is rotatably coupled to the drive shaft hole and the rear portion is rotatably coupled to the intermediate portion adjacent to the drive shaft by a coupling shaft, Each end can be connected to the shaft and the coupling shaft.

In addition, each of the ribs may further include an angle adjusting unit for limiting a rotation angle range of the rear portion.

The angle adjusting portion may include an angle adjusting slot formed in the rear front portion or the middle portion adjacent to the rear rear portion over a rotation angle range of the rear portion and an angle adjusting pin inserted into the angle adjusting slot.

Each of the intermediate portions may include a slide arm portion for slidably engaging with the front portion or another intermediate portion adjacent to the intermediate portion, and a pair of cover portions opposed to each other on both sides of the slide arm portion.

At this time, between the pair of cover portions, the slide arm portion or the rear portion of the other intermediate portion adjacent to each of the intermediate portions may be disposed.

The slide arm portion may include a first arm portion that forms an upper surface of the airfoil while sliding, a second arm portion that faces the first arm portion and forms a lower surface of the airfoil when sliding, have.

The pair of cover parts may include a wire guide part forming a path for guiding the wire and changing a traveling direction of the wire.

Wherein the wire is connected to the coupling shaft along the first arm portion and the wire guide portion of each intermediate portion of the driving shaft and is connected to the first arm portion at the driving shaft or the wire guide portion and surrounds the first arm portion, And the direction changes when connected.

Further, when the driving shaft is rotated to wind one end of the wire connected thereto, the slide arm portion of each intermediate portion slides from the front portion or the cover portion of the other intermediate portion adjacent to each intermediate portion, And each of the intermediate portions and the trailing portion forms a continuous curvature from the front portion and can be bent.

The slide arm portion and the front portion of the front arm portion or the cover portion of the middle portion opposed to the slide arm portion are coupled to each other so as to be slidable with respect to each other so that one side thereof is provided with a coupling hole formed to be long along the sliding direction, As shown in Fig.

The first arm portion may include a first engagement hole formed to be long along the sliding direction.

The front portion and the pair of cover portions may include at least one second engagement hole formed at a position opposite to the position of the first engagement hole and at least one second engagement hole inserted into the first engagement hole and the second engagement hole, And an engaging pin movable along the longitudinal direction of the engaging hole.

The second arm portion may include a plurality of coupling protrusions formed at both ends thereof.

The front portion and the pair of cover portions may further include a third engagement hole formed to be long along the slide direction at a position facing the second arm portion and the engagement protrusion formed at one end of the second arm portion And may be coupled to the third coupling hole.

The pair of cover portions may be coupled to coupling projections formed at the other ends of the second arm portions.

Each of the ribs may further include a bearing provided between the second engagement hole and the engagement pin.

The plurality of slide intermediate portions may include first to third slide intermediate portions disposed between the front and back front portions.

The front end may further include a spar slot to which a spar for connecting a plurality of front ends of the plurality of ribs arranged in parallel is coupled.

The cover portion may further include a stringer groove to which a stringer for connecting the plurality of cover portions is coupled to the plurality of ribs arranged in parallel.

At this time, the stringer groove may be formed on the upper side of the wire guide portion.

The apparatus may further include a driving unit for driving rotation of the driving shaft.

The wing skin may further comprise a wing skin for wrapping the plurality of ribs, and the wing skin may be made of an elastic material.

Or an elastic member extending from the front portion of each of the ribs to the rear entire portion via the plurality of slide intermediate portions.

According to the deformable wing of the present invention, since the starting deformation is possible by only one rotation driving, the driving part becomes simple and the overall weight can be reduced.

Further, since the shape of the continuous airfoil can be maintained even after the starting deformation of the wing, the drag force generated in the discontinuous plane is not generated, and the aerodynamic efficiency can be improved.

In addition, the lift can be increased by increasing the length of the entire protrusion of the airfoil as well as the angle of the trailing edge, thereby increasing the lift significantly.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a configuration of a conventional wing rear traction deformation device. Fig.
2 is a perspective view illustrating a wing according to an embodiment of the present invention;
FIG. 3 is a perspective view showing one rib separated in FIG. 2. FIG.
FIG. 4 is an exploded perspective view showing a part of FIG. 3 in an exploded manner; FIG.
Fig. 5 is a perspective view showing a deformed shape of the rib of Fig. 3; Fig.
Fig. 6 is a sectional view of Fig. 5; Fig.
FIG. 7 is an enlarged perspective view of a portion of FIG. 6; FIG.
Fig. 8 is a front view showing one slide intermediate portion separated from the rib in Fig. 4; Fig.
Fig. 9 is an enlarged perspective view of a portion (rear portion) of Fig. 4; Fig.
10 is a front view for showing the operating state of Fig. 9; Fig.

Hereinafter, a preferred embodiment of the deformable wing of the present invention will be described with reference to Figs. 2 to 10 attached hereto.

It is to be understood that both the foregoing description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention, and are not intended to limit the scope of the invention. But are merely illustrative of the elements recited in the claims.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification. Throughout the specification, when an element is referred to as " comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

FIG. 2 is a perspective view showing a wing according to an embodiment of the present invention, FIG. 3 is a perspective view showing one rib separated from FIG. 2, FIG. 4 is an exploded perspective view 6 is a cross-sectional view of Fig. 5, Fig. 7 is an enlarged perspective view of part of Fig. 6, Fig. 8 is an enlarged perspective view of one of the ribs of Fig. 9 is an enlarged perspective view of a portion (rear portion) of FIG. 4, and FIG. 10 is a front view for showing an operating state of FIG. 9. FIG.

The wing of the present invention is composed of a plurality of ribs connected to each other, and the rib is a skeleton of a wing, and is a wing structure member in a protruding direction that forms a cross-sectional shape of an airfoil.

The deformable wings of the present invention can be applied to various fields and can be applied to blades of wind turbines as well as aircraft wings.

The wing 1 according to the embodiment of the present invention is formed by two ribs 10 arranged side by side and connected to each other as shown in FIG.

However, the present invention is not limited thereto, and three or more ribs may be connected.

The plurality of ribs 10 are coupled to one drive shaft 110 in parallel and may be connected to each other by using a separate spar 20 and a stringer 30 as connecting members. This is discussed in detail below.

3, each of the ribs 10 includes a front front part 100, a rear front part 200, a plurality of slide intermediate parts 300, Wire 400 may be included.

The leading edge 100 forms a front portion of an airfoil of a wing and a driving shaft hole 112 is formed in the front portion 100. A driving shaft 110 is inserted into the driving shaft hole 112, Is rotatably coupled.

The driving shaft 110 is rotatable by a separate driving unit 40 as will be described later. The driving shaft 110 is connected to the wires 400 can be wound or unwound to control the starting deformation of the wing.

A spar slot 120 may be formed in the front part 100 to couple springs 20 for connecting the plurality of front parts 100 in the plurality of ribs 10 arranged side by side. Accordingly, as shown in FIG. 2, the spar 20 can serve to connect and support the plurality of front parts 100 in the plurality of ribs 10 arranged side by side, And can mainly take charge of the bending load and the torsional load. At this time, the springs 20 may be formed to have the same height as the front fascia 100.

The rear trailing edge 200 is a portion of the airfoil rear portion of the wing and the rear front portion 200 is rotatably coupled to the slide middle portion 300 adjacent thereto by a coupling shaft 210. Its detailed structure is described in detail below.

The plurality of slide intermediate parts 300 are slidably disposed between the front part 100 and the rear part 200 and can be deformed by sliding from the front part 100. [

Although not limited thereto, the plurality of slide intermediate portions 300 may include first to third slide intermediate portions 1300 and 2300 disposed between the front portion 100 and the rear portion 200 , 3300), which will be described on the basis of this.

Referring to FIGS. 4 to 8, the intermediate portions 1300, 2300, and 3300 include slide arm portions 1320 and 1330 for slidably engaging with the front portion 100 or other intermediate portions adjacent to the respective intermediate portions, 2320, and 3320, and a pair of cover portions 1340, 2340, and 3340 that are coupled to each other on opposite sides of the slide arm portion.

The pair of cover parts 1340, 2340 and 3340 are coupled to the rear ends of the slide arm parts 1320, 2320 and 3320 and are coupled to both sides of the slide arm parts 1320, 2320 and 3320 so as to face each other A certain space can be formed between the pair of cover parts.

At this time, between the pair of cover parts 1340, 2340, 3340, the slide arm parts 2320, 3320 or the rear part 200 adjacent to the respective intermediate parts may be arranged.

Specifically, the front portion 100 is formed with a space portion 102 in which the slide arm portion 1320 of the first intermediate portion 1300 adjacent thereto is slidably engaged, and the first intermediate portion A slide arm portion 2320 of the second intermediate portion 2300 adjacent thereto is disposed and slidably engaged between the cover portion 1340 of the second intermediate portion 2300 and the cover portion 2340 And a slide arm 3320 of the third intermediate portion 3300 is disposed between the cover portion 3340 of the third intermediate portion 3300 and the rear arm portion 3320 of the third intermediate portion 3300, 200 are disposed and rotatably coupled.

That is, the front and rear ends of the front part 100, the first to third slide intermediate parts 1300, 2300, and 3300, and the rear part 200 are engaged with each other.

The slide arm portions 1320, 2320 and 3320 constitute the upper surface of the airfoil when the slide arm portions 1320, 2320 and 3320 are slid, And second arm portions 1324, 2324, and 3324 facing the first arm portions and forming the lower surface of the airfoil while sliding. The first arm portions 1322,

8, the first arm portion 1322 and the second arm portion 1324 are connected to the first intermediate portion 1300 and the first intermediate portion 1300, respectively. And extend along the longitudinal direction of the airfoil so as to be slidable on the space 102 of the front part 100 disposed at the front end of the airfoil.

7, when the wing is deformed, the first arm portion 1322 and the second arm portion 1324 are slid from the front portion 100 to form an upper surface and a lower surface of the airfoil, . At this time, the lengths of the first arm portion 1322 and the second arm portion 1324 may be variously formed depending on the position and angle, and the first arm portion 1322 may be formed longer, 2 arm portion 1324 may be formed longer.

The pair of cover parts 1340, 2340, and 3340 may include wire guide parts 1342, 2342, and 3342 that form a path for guiding the wire 400 and change the traveling direction of the wire 400, ).

The wire guide portions 1342 and 2342 of the first intermediate portion 1300 and the second intermediate portion 2300 are connected to the wires 400 extending from the respective slide arm portions 1320 and 2320, 2340 to the rear end side of the cover portion 1340, 2340 so as to extend to the rear end side of the cover portion.

The wire guide portions 1342 and 2342 may protrude inward of the respective cover portions 1340 and 2340 and may be formed by sliding the adjacent intermediate portions 1340 and 2340 between the pair of cover portions 1340 and 2340 It is preferably formed on the lower side of the arm portion, that is, below the slide arm portions 2320 and 3320 of the second intermediate portion and the third intermediate portion adjacent to the respective cover portions 1340 and 2340.

Accordingly, as described later, when the wire 400 is moved from the front end slide arm portion to the rear end slide arm portion, the wire 400 is not directly connected and is guided from the front end slide arm portion to the rear end portion of the cover portion, .

The cover portion 3340 of the third intermediate portion 3300 includes the wire guide portion 3342 and the wire guide portions 1342 and 2342 of the first and second intermediate portions And are formed in different structures.

The wire guide portion 3342 of the third intermediate portion is formed to guide the wire 400 extending from the slide arm portion 3320 of the third intermediate portion to the coupling shaft 210.

Each of the cover parts 1340, 2340 and 3340 has stringer grooves 1341, 2341 and 3341 to which a stringer 30 for connecting a plurality of cover parts is coupled, .

As shown in FIG. 2, the stringer 30 is installed in a stringer groove formed in parallel to the plurality of ribs 10, and can take part in shape maintenance and strength.

At this time, the stringer groove may be formed on the upper side of the wire guide portion.

More specifically, in this embodiment, the stringer grooves 1341 and 2341 formed in the cover portions 1340 and 2340 of the first intermediate portion and the second intermediate portion are formed on the upper side of the wire guide portions 1342 and 2342, respectively have.

In addition, a stringer groove 3341 formed in the cover portion 3340 of the third intermediate portion is formed inside the cover portion 3340.

However, the present invention is not limited thereto, and the stringer groove may be formed anywhere that a stringer for connecting two or more ribs 10 is disposed, where the stringer is not affected when the wire or the component is driven .

Next, a structure for allowing the slide arm portion to be slidably engaged with the front portion or the cover portion of the intermediate portion facing the slide arm portion will be described.

Specifically, in this embodiment, the slide arm portion 1320 of the first intermediate portion 1300 and the slide arm portion 2320 of the second intermediate portion 2300 are connected to the front portion 100, The slide arm portion 3320 of the third intermediate portion 3300 is slidably engaged with the cover portion 2340 of the second intermediate portion 2300 to the cover portion 1340 of the second intermediate portion 2300. [

To this end, the slide arm portion, one of the front front portions facing the slide arm portion, the slide arm portion, and one side of the cover portion facing the slide arm portion are provided with engagement holes formed to be long along the slide direction, And a moving unit movably installed in the coupling hole may be provided on the other side of the cover, the slide arm, and the cover arm.

Specifically, in the present embodiment, the first arm portions 1322, 2322, and 3322 include first coupling holes 1323, 2323, and 3323 which are formed to be long along the sliding direction.

The front portion 100 or the pair of cover portions 1340 and 2340 opposed to the first arm portions 1322, 2322 and 3322 are located at positions of the first engagement holes 1323, 2323 and 3323 At least one second coupling hole 144, 1344 and 2344 formed at a position opposite to the first coupling hole 1323, 2323 and 3323 and the second coupling hole 144, 1344 and 2344, And coupling pins 145, 1345, and 2345 that are movable along the longitudinal direction of the first coupling hole.

The second engaging holes 144, 1344 and 2344 are formed in a circular shape so that the engaging pins 145, 1345 and 2345 can be inserted and rotated but not moved. 1344 and 2344 and the engaging pins 145, 1345 and 2345 so as to be rotatable in the second engaging holes 144, 1344 and 2344 without friction, A bearing 1346 may be provided between the first and second plates.

The second engagement holes 144, 1344 and 2344 are formed at positions opposite to the first engagement holes 1323, 2323 and 3323, As shown in Fig.

The coupling pins 145, 1345 and 2345 fixed to the front part 100 or the cover parts 1340 and 2340 are coupled to the front part 100 or the cover parts 1340 and 2340 The sliding arm portions 1320, 2320 and 3320 can be moved along the longitudinal direction of the first coupling holes 1323, 2323 and 3323 formed on the sliding arm portions 1320, 2320 and 3320, Or can be slidably moved from the cover portions 1340 and 2340.

However, the present invention is not limited to this, and a coupling protrusion may be formed as a moving portion on each of the first arm portions, and a coupling hole may be provided on the front portion or each cover portion facing the sliding protrusion. At this time, since the back front part 200 is rotatably coupled in the cover part 3340 of the third intermediate part, the second coupling hole may not be formed.

Next, the second arm portions 1324, 2324, and 3324 may include a plurality of coupling protrusions 1325, 2325, and 3325 formed at both ends thereof.

The front portion 100 or the pair of cover portions 1340 and 2340 opposed to the second arm portions 1324, 2324 and 3324 are opposed to the second arm portions 1324, 2324 and 3324 And third coupling holes (148, 1348, and 2348) formed along the sliding direction of the second arm portion, wherein coupling projections (1325, 2325, and 3325) formed at one end of the second arm portion are engaged with the third coupling holes 148, 1348, 2348).

Also, the pair of cover parts 1340, 2340, and 3340 may be coupled to the coupling protrusions 1325, 2325, and 3325 formed at the other end of the second arm part.

Specifically, in the present embodiment, both ends of the second arm portions 1324, 2324, and 3324 are integrally formed at both ends of the first front arm 100, The protrusions 1325, 2325, and 3325 are formed at the front ends of the front protrusions 100 and the third engagement holes 148, 1348, 2348, and 2348, and the engaging projection located at the rear end of the engaging projection is used when the cover portions 1340, 2340, and 3340 of the respective intermediate portions are engaged with each other.

The second arm portions 1324, 2324, and 3324 are connected to the cover portions 1340, 2340, and 3340 at one side and the third engagement holes 148, 1348, and 2348 at the other side, The slide arm portions 1320, 2320 and 3320 can be slidably moved from the respective front portions 100 or the cover portions 1340 and 2340 because the slide arm portions 1320, 2320 and 3320 can slide along the longitudinal direction.

At this time, the second arm portions 1324, 2324, and 3324 are slidable along the longitudinal direction of the third engagement holes 148, 1348, and 2348, May be formed differently for each position of the middle portion of each slide.

Like the first arm portions 1322, 2322, and 3322 and the coupling structure of the front portion 100 or the pair of cover portions 1340 and 2340 facing the first arm portions 1322, 2322, and 3322, A coupling hole formed in each of the second arm portions along a sliding direction, and a coupling pin or a coupling protrusion or the like may be formed as a moving portion in the front front portion or the respective cover portions opposed to each other. At this time, since the back front part 200 is rotatably coupled in the cover part 3340 of the third intermediate part, the third coupling hole may not be formed.

The wire 400 may be connected from the front unit 100 to the rear unit 200 via the middle parts 300 of the slides.

Each of the slide intermediate portions 300 has a curvature and is connected to the rear portion of the front portion 100. The rear portion of the slide intermediate portion 300 is connected to the front portion 100, A continuous surface can be formed up to the entire portion 200.

Specifically, the wire 400 is connected at one end to the driving shaft 110 and the coupling shaft 210, and the first arm portions 1322, 2322, and 3322 at the respective middle portions of the driving shaft 110, And is connected to the coupling shaft 210 along the wire guide portions 1342, 2342, and 3342.

At this time, the wire 400 may be directly connected to the driving shaft 110 and the coupling shaft 210, but is connected to a separate component (member) connected to the driving shaft 110 and the coupling shaft 210 It is needless to say that they may be connected indirectly.

When the wire 400 is connected to the first arm portions 1322, 2322, 3322 in the driving shaft 110 or the wire guide portions 1342, 2342 and the first arm portions 1322, 2322, 3322, And the direction changes when connected.

Accordingly, when the wire 400 is pulled up by rotating the drive shaft 110, the wire 400 is pulled so that the slide arm portions, that is, the first arm portions 1322, 2322, and 3322, So that the slide middle portion can be slid.

To this end, the wings of the present invention may further include a driving unit 40 for driving the rotation of the driving shaft 110.

The driving unit 40 may be connected to the driving shaft 110 to provide power to rotate the driving shaft.

5 and 6, the operation structure of the wing according to one embodiment of the present invention will be described. When one end of the wire 400 connected to the driving shaft 110 is rotated to be wound, The slide arm portions 1320, 2320 and 3320 in the middle portion are slid from the front portion 100 or the cover portions 1340 and 2340 in the other intermediate portion adjacent to the respective middle portions, And is rotated from the intermediate portion 3300.

Accordingly, the intermediate parts 1300, 2300, and 3300 and the back front part 200 may be curved to form a continuous curvature from the front part 100.

As described above, according to the deformable wing of the present invention, since the starting deformation is possible by only one rotation driving, the driving unit is simplified and the overall weight can be reduced.

Further, since the shape of the continuous airfoil can be maintained even after the starting deformation of the wing, the drag force generated in the discontinuous plane is not generated, and the aerodynamic efficiency can be improved.

In addition, as the angle of the back front part 200 as well as the length of the entire protrusion of the airfoil is increased, the wing surface is increased and the lift force can be greatly increased.

9 and 10, each of the ribs 10 may further include an angle adjuster for limiting a range of rotation angles of the rear back part 200. In this case,

The angle adjusting unit may include an angle adjusting slot formed in the rear front portion 200 or the middle portion adjacent to the rear front portion 200 over an angle range of rotation of the back front portion 200 and an angle adjusting pin inserted into the angle adjusting slot .

Specifically, in the present embodiment, the rear part 200 is disposed between the cover part 3340 of the third intermediate part and is rotatably coupled by the coupling shaft 210, and the rear part 200 Is provided with an angle adjusting slot 232 formed along the circumferential direction of the engaging shaft 210 over the range of the rotational angle thereof.

An angle adjusting pin 230 coupled to the cover portion 3340 of the third intermediate portion is inserted into the angle adjusting slot 232 and the angle adjusting pin 230 is inserted into the angle adjusting slot 232 The rear back portion 200 can be rotated within the range of the angle adjustment slot 3232. [

As a result, the continuous shape of the airfoil can be maintained when the blade is started and deformed.

Further, as described above, after the starting deformation of the blade, it is necessary to restore the original shape.

That is, when the driving shaft 110 is rotated to release one end of the wire 400 connected to the driving shaft 110, the intermediate parts 1300, 2300, and 3300 and the rear part 200 are separated from the front part 100, A force is required to pull it so that it can be slid to the side.

To this end, the wing 1 of the present invention further comprises a wing skin (not shown) for wrapping the plurality of ribs 10, and the wing skin may be made of an elastic material.

As a result, when the driving shaft 110 is rotated after the wing 1 is started to be deformed to release the winding end of the wire 400, the elastic force of the wing skins causes the intermediate portions 1300 , 2300, and 3300 and the back front portion 200 are pulled toward the front side 100, are slidable, and can be restored to their original shapes.

According to another embodiment, the wing 1 of the present invention may include a plurality of slide intermediate portions 300 extending from the front portion 100 of each of the ribs 10 through the plurality of slide intermediate portions 300, (Not shown) that extends to the upper surface 200 of the body.

At this time, the elastic member is composed of a plurality of elastic members, and the front part 100 and the adjacent first intermediate part 1300, the first intermediate part 1300 and the second intermediate part 2300, The elastic member may be connected to the spider 20 and the springer 30 connecting the ribs 10 and may be connected at one time .

The present invention is not limited to the above-described specific embodiment and description, and various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention as claimed in the claims. And such modifications are within the scope of protection of the present invention.

1: wing 10: rib
20: spar 30: stringer
40: driving part 100: front part
102: space portion 110: drive shaft
112: Driving shaft hole 120: Spa slot
200: rear entire portion 210: engagement shaft
230: Angle adjustment pin 232: Angle adjustment slot
300: slide intermediate part 400: wire
1300, 2300, 3300: First to third slide middle parts
1320, 2320, 3320:
1322, 2322, and 3322:
1323, 2323, 3323: first coupling hole
1324, 2324, 3324:
1325, 2325, 3325:
1340, 2340, 3340: a pair of cover parts
1341, 2341, 3341: stringer home
1342, 2342, and 3342:
144, 1344, 2344: a second coupling hole
145, 1345, 2345:
1346: Bearings
148, 1348, 2348: Third coupling hole

Claims (24)

In a wing having a plurality of ribs connected to each other,
The ribs
Leading edge portion;
A trailing edge portion;
A plurality of slide intermediate portions slidably coupled between the front front portion and the rear front portion; And
And a wire connected from the front front portion to the back rear portion via the respective slide intermediate portions,
Wherein one end of the wire is wound or unwound to slide the intermediate portion of each slide, wherein each intermediate portion of the slide has a curvature and forms a continuous surface from the front to the back. The method according to claim 1,
A drive shaft hole is formed in the front portion, a drive shaft is rotatably coupled to the drive shaft hole,
The rear portion is rotatably coupled to the intermediate portion adjacent thereto by a coupling shaft,
And the wires are connected to the drive shaft and the coupling shaft, respectively. 3. The method of claim 2,
The ribs
An angle adjusting unit for limiting a rotation angle range of the rear portion;
Further comprising a wing. The method of claim 3,
Wherein the angle-
An angle adjusting slot formed in the rear front portion or in the middle portion adjacent to the back front portion over a rotation angle range of the rear portion; And
An angle adjusting pin inserted into the angle adjusting slot;
. 3. The method of claim 2,
Wherein each of the intermediate portions comprises:
A slide arm portion slidably engaged with the front front portion or another intermediate portion adjacent to each intermediate portion; And
A pair of cover parts which are opposed to each other on opposite sides of the slide arm part;
. 6. The method of claim 5,
And a slide arm portion or a rear portion of another intermediate portion adjacent to each of the intermediate portions is disposed between the pair of cover portions. The method according to claim 6,
The slide arm portion
A first arm portion forming an upper surface of the airfoil when the wire is slid, the wire being wound around the wire; And
A second arm portion facing the first arm portion and forming a lower surface of the airfoil when sliding;
. 8. The method of claim 7,
The pair of cover portions
A wire guide part forming a path for guiding the wire and changing a traveling direction of the wire;
. 9. The method of claim 8,
The wire
The driving shaft is connected to the coupling shaft along the first arm portion and the wire guide portion of each intermediate portion,
And the direction changes when the first shaft portion is connected to the first arm portion and when the first shaft portion is coupled to the drive shaft or the wire guide portion. 10. The method of claim 9,
The slide arm portion of each intermediate portion is slid from the front portion or the cover portion of the other intermediate portion adjacent to each intermediate portion when the one end of the wire connected thereto is rotated by rotating the drive shaft, And the intermediate portion and the trailing portion are bent from each other to form a continuous curvature from the front portion. 9. The method of claim 8,
The slide arm portion and the front portion of the front arm portion or the cover portion of the middle portion opposed to the slide arm portion are coupled to each other so as to be slidable with respect to each other so that one side thereof is provided with a coupling hole formed to be long along the sliding direction, And a moving unit for rotating the wing. 12. The method of claim 11,
The first arm portion may include a first engagement hole formed to be long along the sliding direction therein;
. 13. The method of claim 12,
Wherein the front front portion and the pair of cover portions,
At least one second coupling hole formed at a position opposite to the position of the first coupling hole; And
An engaging pin inserted into the first engaging hole and the second engaging hole at the same time and movable along the longitudinal direction of the first engaging hole;
. 14. The method of claim 13,
The second arm portion includes a plurality of coupling protrusions formed at both ends thereof;
. 15. The method of claim 14,
Wherein the front front portion and the pair of cover portions,
And a third coupling hole formed at a position facing the second arm portion along the sliding direction,
And a coupling protrusion formed at one end of the second arm portion is coupled to the third coupling hole. 16. The method of claim 15,
And the pair of cover portions are coupled to coupling projections formed at the other ends of the second arm portions. 14. The method of claim 13,
The ribs
A bearing installed between the second engagement hole and the engagement pin;
Further comprising a wing. The method according to claim 1,
Wherein the plurality of slide intermediate portions comprise:
And first to third slide intermediate portions disposed between the front front portion and the back front portion. The method according to claim 1,
The front end includes a spar slot to which a spar for connecting a plurality of front ends of the plurality of ribs arranged in parallel is coupled;
Further comprising a wing. 9. The method of claim 8,
Wherein the cover portion includes a stringer groove to which a stringer for connecting a plurality of cover portions from the plurality of ribs arranged in parallel is coupled;
Further comprising a wing. 21. The method of claim 20,
The stringer groove
And is formed on the upper side of the wire guide portion. 3. The method of claim 2,
A driving unit for driving rotation of the driving shaft;
Further comprising a wing. The method according to claim 1,
And a wing skin for wrapping the plurality of ribs,
Wherein the wing skin is made of an elastic material. The method according to claim 1,
An elastic member extending from the front portion of each of the ribs to the rear entire portion through the plurality of slide intermediate portions;
Further comprising a wing.

Images