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WO1990005663A1 - Kite frame with inflatable compartment wing - Google Patents

Kite frame with inflatable compartment wing

Info

Publication number
WO1990005663A1
WO1990005663A1 PCT/FR1989/000599 FR8900599W WO9005663A1 WO 1990005663 A1 WO1990005663 A1 WO 1990005663A1 FR 8900599 W FR8900599 W FR 8900599W WO 9005663 A1 WO9005663 A1 WO 9005663A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
wing
structure
according
lines
figure
Prior art date
Application number
PCT/FR1989/000599
Other languages
French (fr)
Inventor
Sylvain Berthomme
Original Assignee
Voile Systeme
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D17/00Parachutes
    • B64D17/02Canopy arrangement or construction
    • B64D17/025Canopy arrangement or construction for gliding chutes
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS, BUILDING BLOCKS
    • A63H27/00Toy aircraft; Other flying toys ; Starting or launching devices therefor
    • A63H27/08Kites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C31/00Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft
    • B64C31/06Kites
    • B64C2031/065Kites of inflatable wing type

Abstract

Kite frame, used in particular in wind-driven craft comprising a wing (10) composed of inflatable compartments (14) placed side by side, having air inlets (24) and interconnected by their lateral sides (16) and suspension cords (12) characterized in that the latter (12) are placed in a single row, at the rear of the leading edge and in that the profile section is self-gliding and a wing-type kite frame characterized in that a part of the trailing edge of each half-plane of the sail is stiffened so as to form an aileron and in that it comprises means for manoeuvring the stiffened part.

Description

kite type structure wing with inflatable chambers.

The present invention relates to a kite type structure wing with inflatable chambers for the game for traction with moving equipment, parachute and paragliders and a control device.

Flying devices such as paragliders use structures such wing with inflatable chambers, parallel, provided with lines carrying the user and comprising means for allowing to adjust the incidence of the wing relative to the apparent wind.

European Patent Application No. 0023137 describes a structure that can be used as a kite and that allows adjustment of the position in azimuth and / or with respect to the horizon.

This structure comprises a wing parallel inflatable chambers of substantially rectangular shape. At the height of the leading edge, immediately below the wells of the air intakes to their swelling is disposed a deformable hoop whose length is equal to the width of the wing. Two links are fixed to the ends of the headband to allow the control of the kite.

The bow is particularly rigid in its central portion and deformable at its ends, in proportion to the wind force. The goal is to improve the stability of the kite during different phases of flight.

Such a structure has drawbacks regarding its implementation because it must implement the hoop on the wing before the flight, the space remains significant during storage, even if the bar is in several parts and the price of the device is increased accordingly, the hoop having very specific flexibility characteristics.

The present invention relates to a kite structure inflatable chambers whose flight stability is increased, which is used in a very wide range of wind strengths, the cost and size are reduced by removing of any accessory other than the fabric and the lines, including the implementation is easy. To this end, the kite flying structure according to the invention comprises parallel chambers with air inlets disposed in front of each of said chambers, interconnected by their lateral faces and the lines and is characterized in that it comprises a single row of hangers disposed behind the leading edge and in that the profile is self-hovering.

Furthermore, according to another characteristic, the suspension lines are connected in the largest bearing area.

The structure is characterized in that the attachment points of the lines to the casing are arranged in a line parallel to the leading edge on the underside of the casing. According to a particular feature of the invention the structure comprises five lines.

On the other hand, along the longitudinal axis of the intrados casing is shorter than the upper surface.

According to another feature there Prof. side faces of the casing rib is such that the rear of the casing is bent upwardly from the intrados to the extrados. The kite structure is also characterized in that the profile in the plane of the wing is of the type V or Δ, the tip or the apex constituting the top of the leading edge.

These inflatable coffered wings of the kite-like or paraglider wing consist of a plane which includes several chambers connected with each other, each volume being separated from the adjacent volume by a rib. The caissons are open on their front side in the advancement direction so as to allow the swelling of these boxes, the rigidity of the structure being ensured solely by the air pressure in these chambers. In the case of integral lines of the intrados of the wing allow the user typically bear by means of a harness to which converges all lines.

Moreover, in order to be able to control this type of wing, an area of ​​the wing trailing edge is equipped with controls ropes, actuated by the user. The areas are usually the rear left and right corners of the wing that the user can bend down. Such a maneuver when it is operated by the user on one side causes a shift of the side on which the traction is exerted. When landing the paraglider, the user exerts traction on both sides simultaneously to cause braking of the wing. These maneuvers are applicable to the known type of wings, but their efficiency and accuracy are not perfect. In addition, the wings used include a large number of lines attached to the wing at different points in the in- férieure face of the wing along the leading edge, to the rear portion of the wing, upstream of the trailing edge along the deformable part and finally along the trailing edge so as to bend it. The trail is very important which limits the performance of this type of wing.

This wing therefore requires very few lines, which correspondingly reduces the drag. Moreover, the control of this wing is done by pulling on the trailing edge, especially in the corners in order to bend them. It turned out that when excessive traction on the trailing edge, the profile is reversed and no longer autoplanant.

The invention therefore also relates to an inflatable coffered wing structure paraglider type which can be controlled accurately, suitable whatever the wing profile including autoplanants profiles, the drag is limited, which additional items are not detrimental to the weight of the whole, while improving security.

To this end, the inflatable coffered wing structure paraglider type according to the invention comprises integral suspension casing and connected to a harness supporting the user, and control cables connected to the rear part of the half-planes left and right of the blade and this structure is characterized in that at least a portion of the trailing edge of each half-plane is stiffened so as to form a flap and in that it comprises actuating means of this stiffened portion . According to a particular feature of the invention at least two ribs disposed symmetrically in each of the half-planes left and right each comprise an articulation disposed in line with the fin.

According to another characteristic of the invention, at least two stiffened ribs disposed symmetrically in each of the half-planes of the blade, each comprise a V-shaped bellows extending over the entire height of the rib and realized in a the flexible material supporting the folding, said bellows being arranged in line with the fin so as to make the rear portion of this rib movable in its plane.

The canopy according to the invention is also characterized in that it comprises the spoiler actuating means comprise at least a rope connected to said aileron, which passes through the wings and whose free end is connected to the harness.

According to a particular characteristic each strand is fixed by one of its ends to the movable portion of the rib supporting the fin.

The invention is described in detail below according to a particular embodiment with reference to the accompanying drawings in which:

- Figure 1 is a perspective view of a kite structure according to the invention;

- Figure 2 is a bottom view of a kite structure

- Figure 3 is a sectional view along line 3-3 of Figure 2,

- Figure 4 shows a top view of a wing structure having inflatable chambers according to the invention provided with its fins, - Figure 5 shows a vertical section along line 5-5 of Figure 4, with the fin in the initial position,

- Figure 6 is a sectional view identical to that of Figure 5 with the flap in the raised position,

- Figure 7 is a vertical sectional view along line 7-7 of Figure 4,

- Figure B shows a variation of the passage of the aileron rope through the wing,

- Figure 9 shows the passage of the control rope and the provision of the fin in the case of a movable fin profile downwards, and - Figure 10 is a partial view in vertical section along line 10-10 Figure 9.

kite of the structure shown in Figure 1 comprises a wing 10 of self-displacement type and lines 12.

The canopy 10 includes casing 14 juxtaposed by their side faces 16, which are detached when the ribs 18, while the free faces. two lateral boxes 20 and 22 correspond to the lateral ends of said wing. Each caisson is provided with an air inlet 24 on the front of the wing, at the height of the leading edge. These air inlets have a ouvetture inclined plane relative to the plane of the wing so as to facilitate the admission of air as well as more accurately to shown in Figure 2.

Moreover, if we consider the top of the canopy or upper 26 and lower face 28 or lower surface, we find that the length of the latter is lower to that of the upper surface as shown in Figure 3.

The canopy 10 also has a PARTICULAR form on the back, the wing plane is inclined upwards, thanks to the cutting of the sides of the casing or ribs so as to bend the trailing edge.

In Figure 1, five lines are shown 12, the distribution is perfectly symmetrical namely one in the center, two side and two in the middle of each half sail plan.

Over the lines 12 are arranged in a line parallel to the edge and back thereof, in the largest bearing area. Fixing the suspension is made directly on the lower face of the corresponding boxes.

In Figure 1, the perspective view shows the curved shape assumed by the blade into the wind when a resisting force is first ex ce the free ends of lines. Furthermore, this sail plan also has a V-shape as shown in Figure 2, the tip of the V corresponding to the center of the leading edge.

The lines 12 may be grouped on the same connection cable or on the same control rod (not depicted) so as to allow the user to perform the desired structure bends in a known manner using handles connected the ends of the cable or rod.

Furthermore, control lines 30 are arranged at the rear corners of the wing for braking in the case of a paraglider use. The operation of the structure will be described.

The kite structure is unfolded and the wing being arranged flat on the ground, air inlet facing the wind, the user back to the wind, by pulling on the lines allows the start of inflation of the caissons which stiffens the wing and allows the flight relative to the apparent wind.

The profile being self-hovering, the wing is stabilized according to the wind with good impact relative to the apparent wind.

The structure is very stable and turns on one side are obtained by pulling on the lines on the same side.

As for the control lines, they allow to brake the wing by simultaneous actuation in the same direction and increase the actions of lateral lines during cornering to tight turns by an operation on one or the other of lines .

Such a structure of kite has been successfully applied testing including with winds of great strength, showing excellent stability, ease of implementation. As for the size, it is minimized allowing it to be used for many applications, only changing sail area to be adapted to the effort required.

Such a structure can be used for towing floating watercraft, land vehicles such as beach tanks, but also as a means of traction on the survival craft. Adjustments can be made to this structure without changing its characteristics. Thus the boxes are closed at their rear extrémitéss but can be opened with air outlets, the outlet section being smaller than the inlet section.

On the other hand, grids may be disposed on the air inlets to prevent entry of solid particles in the wells.

Also the shape of the V-wing can be changed in favor of a Form A.

The number of lines must be adapted according to the application.

In Figure 4 there is shown a wing 110 having inflatable chambers 112 provided with an opening 114 on the leading edge, the wells 112 being juxtaposed and separated by ribs 116. The lower and upper surfaces of the wing are made of lightweight fabric, like ribs 116 for separating the chambers. On either side of the midplane some ribs 118, symmetrically distributed, are stiffened by means of a plastic film such as that commeicialisé under the name Mylar. The portion of the trailing edge 122 of the blade situated in line with these stiffened ribs 118 is rigidified to form a fin 120.

As is best shown in section in Figure 5, the rib 118 includes a portion 120, 124 in a V hinge bellows 126. This bellows V is made of a flexible material supporting the folding as the fabric used for the embodiment of the wing, directly sewn 128 of the rib. Thus the rib 118 has a movable rear part 130, with respect to the fixed portion 132 that makes up the major portion of the rib. In the example shown, the profile is autoplanant and V is oriented upward opening.

As shown in Figures 4, 5 and 6 the wing 110 also includes cables 134 control, the movable portions 130 of the ribs, these cables allow control of the fin 120. The cables 134 are connected to the movable part more particularly in the vicinity of bellows 124 in V-shape and near the upper surface.

The intrados of the wing is provided with a hole 136 located substantially in line with the user in flight position and generally reinforced with an eyelet through which the rope 134. The rope extends to the harness the user so that it is accessible to the latter. Known way the rope is complemented by a control handle. Similarly the harness (not shown) is hung on the hangers 138 fixed to the wing.

In Figure 6, the cord 134 is shown in position after tensioning and the movable part 130 is shown in the raised position. The bellows 124 is V-shaped bent and the opening angle of the V was decreased.

In Figure 7 there is shown a sectional view showing the lower surface 140 and upper surface 142 of the fin 120. The control cables 134 are grouped on a single central ring so as to define a single control 144 and left a symmetrical right order. The operation of the fins 120 of the wing 110 is described below. The user, being suspended from the wing by the harness and the lines 138, has handy commands 144 right and left for acting on the right and left fins. Thus the user pulls on the left control 144 raises the corresponding fin which causes a left turn of the wing. As soon as the user releases the control 144, the flow of air brings the fin in its stable position, that is to say, with the bellows 124 taut.

Upon landing, the user, by pulling both controls 144 right and left causes an effective braking of the wing. Given the relatively small size of the fins and their high rigidity, precision maneuver is increased and the yield is increased. Thus, when turning the amplitude of aileron movement is low, which causes a low resistance to forward movement, this maneuver therefore does not slow the speed of horizontal movement for the benefit of the falling speed.

Alternatively, the various cables 134 can move from one chamber to the other through the ribs to be grouped in one of the caissons so that only the control 144 be apparent on the outside of the wing. In this case, the drag due to the cables is completely eliminated and the only remaining resistance due to the two orders 144, this drag is relatively low.

According to another variant shown in Figure 8, the control cables may be disposed outside of the canopy above the upper surface, in this case the rope 134 previously passed through a hole 146, generally provided with an eyelet préyu to the surface of the upper and then through a hole 136 provided in the underside, identical to the hole provided in the main variant.

In Figure 9 there is shown a known type without autoplanant wing profile, provided with a fin 120 which must in this case be shifted from its initial position downwardly unlike autoplanant profile. In this case, the rope 134, prior to passage through the holes 136 provided in the lower surface will have to pass through a hole 148 provided in the rib stiffened 118 so that the cord 134 exerts a traction in a direction such that allows the operation of the movable portion 130 downwardly into account the fact that the bellows 124 is V-shaped but the opening is directed downward.

Figure 10 is a sectional view through a vertical plane showing the aileron 120 and more particularly the lower surface 140 and upper surface 142, and the routing of cables 134 through the rib and through the intrados.

The wing structure as just described is applicable to paragliders but also to kites or thick webs comprising inflatable chambers.

Claims

1. Structure of kite used in particular for traction of mobile machinery using wind comprising an airfoil (10) comprising inflatable chambers (14) juxtaposed, provided with air inlet (24) and connected them with their lateral faces (16) and the lines (12) characterized in that said hangers (12) are arranged in a single row behind the leading edge and in that the profile of the blade is self-hovering .
2. Structure according to claim 1 characterized in that the lines (12) are fixed in the largest bearing area.
3. Structure according to claim 1 or 2 characterized in that the lines (12) are arranged along a line parallel to the leading edge on the underside of the caissons (14).
4. Structure according to any one of the preceding claims characterized in that it includes five lines (12) of which one is central and two other side.
5. Structure according to any one of the preceding claims characterized in that along the longitudinal axis of the casing, the lower surface is shorter than the upper surface.
6. Structure according to any one of the preceding claims characterized in that the sail plan profile (10) is V, the tip of the V corresponds to the center of the leading edge.
7. Structure according to any one of claims 1 to 6 characterized in that the profile of the plane of the wings (10) is in A whose apex corresponds to the center of the leading edge.
8. Structure according to any one of the preceding claims, characterized in 'that the trailing edge of the blade is raised.
9. A structure according to any preceding claim characterized in that the casing comprises air outlets whose section is smaller than that of the air inlets.
10. Structure according to any one of the preceding claims characterized in that it includes control lines (30) for braking fixed to the rear corners of the canopy.
11. Structure wing with inflatable chambers paraglider type compressor according to any one of the preceding claims comprising a plurality of boxes (112) juxtaposed and separated by vertical ribs (116), each box being provided with an opening (114) oriented in the advancing direction, lines (138) integral with the casing and connected to a user carrying harness and cables (134) connected to control the rear portion of the left and right half planes of the wing characterized in that at least a portion of the trailing edge (122) of each half-plane of the wing is reinforced so as to form a fin (120) and in that it comprises actuating means of the stiffened part.
12. Structure according to claim 11, characterized in that at least two ribs (118) symmetrically disposed in each of demiplans of the wing each comprise a hinge (126) disposed in line with the fin.
13. Structure according to claim 11 or 12, characterized in that at least two ribs (118) rigidified and symmetrically disposed in each of the half-planes of the wing each comprise a bellows (124) V-shaped extending over the entire height of the rib and made of a flexible material supporting the folding, said bellows being arranged in line with the fin so as to make movable in its plane the rear portion (.130) of this rib.
14. Structure according to any one of claims 11 to 13 characterized in that the intrados and extrados of the fin (120) are stiffened.
15. Structure according to any one of claims 11 to 14 characterized in that the maneuvering means comprise at least one wire in (134) connected to the fin (120) and in that the wing comprises at least one hole ( 136) through which the rope, the free end of the rope is substantially situated at the level of the harness.
16. Structure according to claim 15, characterized in that the hole is disposed substantially in line with the user.
17. Structure according to claim 15 or
16, characterized in that each strand (134) is fixed to the movable portion (130) of the rib.
18. Structure according to Claims 15 to
17, characterized in that each rib stiffened comprises a hole (148) for passage of the rope.
19. Structure according to any one of claims 15 to 18, characterized in that the ropes (134) of the different mobile parts (130) stiffened right and left ribs are grouped into two single commands (144) right and left.
20. Structure according to any one of claims 11 to 19, characterized in that the fin is liftable.
PCT/FR1989/000599 1988-11-24 1989-11-22 Kite frame with inflatable compartment wing WO1990005663A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR88/15354 1988-11-24
FR8815354A FR2639247B1 (en) 1988-11-24 1988-11-24 kite structure type wing has inflatable chambers
FR8904314A FR2645116A1 (en) 1989-03-31 1989-03-31 Wing structure with inflatable box sections with a manoeuvrable aileron
FR89/04314 1989-03-31

Publications (1)

Publication Number Publication Date
WO1990005663A1 true true WO1990005663A1 (en) 1990-05-31

Family

ID=26227006

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1989/000599 WO1990005663A1 (en) 1988-11-24 1989-11-22 Kite frame with inflatable compartment wing

Country Status (2)

Country Link
EP (1) EP0445186A1 (en)
WO (1) WO1990005663A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4000596A1 (en) * 1989-10-27 1991-05-02 Rieleit Myung Soon Vehicle, in particular air or water vehicle
FR2771072A1 (en) * 1997-11-18 1999-05-21 Yves Andre Joseph Lenoir Independent control of hang-glider incidence, inclination and direction
WO2001058755A1 (en) * 2000-02-10 2001-08-16 Peter Robert Lynn Ram air inflated wing
WO2004014728A1 (en) * 2002-08-07 2004-02-19 Irvin Aerospace Canada, Ltd. Low cost parachute and method of making same
WO2010106310A1 (en) * 2009-03-19 2010-09-23 The Secretary Of State For Defence A ram air inflating lifting body

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1086126A (en) * 1964-10-01 1967-10-04 Domina Cleophase Jalbert Aerial apparatus for supporting a load
US4026504A (en) * 1976-02-09 1977-05-31 Christoffel Jr Julius M Maneuverable, inflatable kite
FR2420481A1 (en) * 1978-03-24 1979-10-19 Fabrications Aeronautique Et Parachute has multi-cell wing IMPROVED
EP0023137A2 (en) * 1979-07-19 1981-01-28 Andrew Wilfrid Jones Aerofoil structure
FR2558791A1 (en) * 1984-02-01 1985-08-02 Lachoviez Christophe Parachute with multicellular wing plan
GB2170156A (en) * 1985-01-24 1986-07-30 Gq Defence Equip Ltd An aerial device
DE8713293U1 (en) * 1987-10-02 1988-05-11 Krebber, Burghardt, 8910 Landsberg, De
DE8807211U1 (en) * 1988-06-02 1988-09-22 Leibe, Gernot, Dipl.-Ing., 8000 Muenchen, De

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1086126A (en) * 1964-10-01 1967-10-04 Domina Cleophase Jalbert Aerial apparatus for supporting a load
US4026504A (en) * 1976-02-09 1977-05-31 Christoffel Jr Julius M Maneuverable, inflatable kite
FR2420481A1 (en) * 1978-03-24 1979-10-19 Fabrications Aeronautique Et Parachute has multi-cell wing IMPROVED
EP0023137A2 (en) * 1979-07-19 1981-01-28 Andrew Wilfrid Jones Aerofoil structure
FR2558791A1 (en) * 1984-02-01 1985-08-02 Lachoviez Christophe Parachute with multicellular wing plan
GB2170156A (en) * 1985-01-24 1986-07-30 Gq Defence Equip Ltd An aerial device
DE8713293U1 (en) * 1987-10-02 1988-05-11 Krebber, Burghardt, 8910 Landsberg, De
DE8807211U1 (en) * 1988-06-02 1988-09-22 Leibe, Gernot, Dipl.-Ing., 8000 Muenchen, De

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4000596A1 (en) * 1989-10-27 1991-05-02 Rieleit Myung Soon Vehicle, in particular air or water vehicle
FR2771072A1 (en) * 1997-11-18 1999-05-21 Yves Andre Joseph Lenoir Independent control of hang-glider incidence, inclination and direction
WO2001058755A1 (en) * 2000-02-10 2001-08-16 Peter Robert Lynn Ram air inflated wing
EP1257464A1 (en) * 2000-02-10 2002-11-20 Peter Robert Lynn Ram air inflated wing
EP1257464A4 (en) * 2000-02-10 2003-05-07 Peter Robert Lynn Ram air inflated wing
US6837463B2 (en) 2000-02-10 2005-01-04 Peter Robert Lynn Ram air inflated wing
WO2004014728A1 (en) * 2002-08-07 2004-02-19 Irvin Aerospace Canada, Ltd. Low cost parachute and method of making same
US6805324B2 (en) 2002-08-07 2004-10-19 Irvin Aerospace Canada Ltd. Alternate methods of parachute construction
WO2010106310A1 (en) * 2009-03-19 2010-09-23 The Secretary Of State For Defence A ram air inflating lifting body

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