Wing for towing kite of floating boat or land machine

By designing flexible wings with holding points and sliding devices, the safety and stability of the traction floating boat kite during takeoff and recycling at sea is solved, and the safety, stable takeoff and convenient operation of the kite are achieved.

CN119212919APending Publication Date: 2024-12-27OCEA公司
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Patent Information

Application Number
CN202380040297.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-04-14
Filing Date
2023-04-14
Publication Date
2024-12-27

AI Technical Summary

Technical Problem

The tow kites of existing towed floating boats are difficult to take off and recover safely and stably at sea during operation, and the classic launch method requires expansion stage and mechanical connection, making it difficult to operate on land.

Method used

Design a box-type or single-skin flexible wing with multiple holding points and sliding devices. Through a single emitter line, it can achieve gradual release and inflation of the wing and ensure safety of takeoff through a single emitter line. and stable.

Benefits of technology

The safety and stability of the kite during take-off and recycling process is achieved, the operation difficulty is reduced, the impact of wind power changes on expansion and take-off is avoided, and the self-stability and convenience of the kite are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a wing (5) for a kite (4) of a traction device (3) of a floating boat (1) or a rolling and / or sliding land machine (2), in particular a box-type flexible wing (5), in particular an open or closed box-type, or single-skin, or double-surface wing, in particular with a spreader or gripper (56), the invention relates to a lifting appliance or clamp for distributing traction at a plurality of points attached to the lower surface of a wing (5), the wing (5) extending over a length (L), the wing (5) comprising a holding point (210) for cooperating with a launch line (20) to promote takeoff of the wing (5).
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Description

Technical Field

[0001] The invention relates to a wing of a kite for a traction device of a floating craft or a rolling and / or sliding land machine. The invention also relates to a traction device comprising such a wing. The invention also relates to a floating craft or a rolling and / or sliding land machine comprising such a traction device or such a wing. The invention also relates to a method of operating such a traction device. The invention also relates to a traction device comprising hardware and / or software elements for implementing such a method. The invention also relates to a computer program comprising code instructions for implementing such a method. The invention also relates to a data recording medium for implementing such a method. The invention also relates to a signal from a data carrier carrying such a computer program. Background Art

[0002] Towing kites that tow a floating vessel, such as a boat or a ship, are difficult to operate when launched from the deck of the floating vessel. There is therefore a great risk that the kite will be damaged at sea or through contact with the floating vessel or the ground during operation. The classic launch of this type of kite requires an inflation phase and the full deployment of the lines that mechanically connect it to the floating vessel. This is possible on land, but much more difficult at sea. One solution is to let the kite float on the water and take off once the line is released. Another solution is to use a specific vessel for the kite to take off in the wind and, more importantly, to recover the kite. Other solutions use a launching mast to hoist the kite and maintain it in its take-off phase, but the wind changes generated by the movement of the vessel disrupt inflation and take-off. Such solutions are not satisfactory. Summary of the invention

[0003] Invention Introduction

[0004] The present invention relates to a wing capable of overcoming the above-mentioned drawbacks. In particular, it allows the kite to be flown without the use of a launching mast, making the flight of the kite safe and stable during the critical phase of take-off and the height gain required for towing a floating boat or a rolling and / or sliding land machine.

[0005] SUMMARY OF THE INVENTION

[0006] To achieve this object, the present invention relates to a wing, a kite for the traction of a floating craft or a rolling and / or sliding land machine, in particular a flexible wing of the box type, in particular an open or closed box type, or a single-skinned or double-surfaced flexible wing, in particular a wing with a sling or clamp that distributes the traction at a plurality of points attached to the lower surface of the wing, the wing extending in length, characterized in that the wing comprises a holding point for cooperating with a launch line to facilitate the take-off of the wing.

[0007] The holding points may be distributed, in particular evenly distributed, along the length of the wing.

[0008] The wing may include a leading edge; and the holding point may be arranged at a lower region of the leading edge.

[0009] The wing may comprise, at each holding point, sliding means for such a launching line, in particular an eyelet or a clasp or a loop or a pulley.

[0010] The wing may comprise a first anchor point of the wing and a second anchor point of the wing, in particular the first anchor point and the second anchor point of the wing are arranged at ends of the wing substantially along the length of the wing.

[0011] The invention also relates to a traction device for a floating craft or a rolling and / or sliding land machine, comprising a wing as defined above, the traction device comprising:

[0012] - Transmitting lines,

[0013] - a first control line of the wing connected to a first anchor point of the wing,

[0014] - a second control line of the wing connected to a second anchor point of the wing,

[0015] The transmitting line passes through each holding point and / or is releasably secured at each holding point.

[0016] The invention also relates to a traction device for a floating craft or a rolling and / or sliding land machine, comprising a wing as defined above, the traction device comprising:

[0017] - Single transmitting line,

[0018] - The first control line of the wing connected to the first anchor point of the wing

[0019] - The second control line of the wing connected to the second anchor point of the wing

[0020] A single transmitting wire passes through each holding point and / or is releasably secured at each holding point.

[0021] The invention also relates to a traction device for a floating craft or a rolling and / or sliding land machine comprising a wing as defined above, the traction device comprising:

[0022] - Single transmitting line,

[0023] - a first control line of the wing connected to a first anchor point of the wing,

[0024] - a second control line of the wing connected to a second anchor point of the wing,

[0025] A single launch line engages each holding point.

[0026] The traction device may comprise a plate having a hole through which the firing line passes and / or at least one pulley block.

[0027] The invention also relates to a floating craft comprising a traction device as defined above, the floating craft comprising a deck comprising first attachment means for a first control line and second attachment means for a second control line, the first attachment means and the second attachment means being spaced apart from each other by a given value, in particular by approximately 20% of two thirds of the length of the wing.

[0028] The invention also relates to a rolling and / or sliding land machine comprising a traction device as defined above, comprising a chassis comprising a first attachment device for a first control line and a second attachment device for a second control line, the first attachment device and the second attachment device being spaced apart from each other by a given value, in particular by approximately 20% of two thirds of the length of the wing.

[0029] The invention also relates to a method of operating a traction device as defined above, the method comprising the following steps:

[0030] - the wing is held on the floating vessel or the land machine by a first anchor point and by at least the holding point closest to the first anchor point, preferably by one anchor point and by all holding points,

[0031] - Relaxing the wing so as to gradually release it at the holding points, allowing it to inflate and / or take off, by moving away from the first anchor point towards the second anchor point, until the wing is held only by the first and second anchor points, releasing gradually from one holding point to another.

[0032] The release can be controlled, in particular by automatic means by friction, or by automatic means by a speed regulator, or by manual means, or by a brake.

[0033] The traction device may comprise hardware and / or software elements implementing the method as defined above, in particular hardware and / or software elements designed to implement the method as defined above, and / or the traction device may comprise means implementing the method as defined above.

[0034] The present invention also relates to a computer program product comprising program code instructions recorded on a computer-readable medium so as to implement the steps of the method defined above when the computer program is run on a computer, or a computer program product downloadable from a communication network and / or recorded on a computer-readable and / or computer-executable data medium, the computer program product comprising instructions which, when the computer program is executed by a computer, direct the computer to implement the method defined above.

[0035] The present invention also relates to a computer-readable data recording medium having recorded thereon a computer program comprising program code instructions for implementing the method as defined above, or a computer-readable data recording medium comprising instructions which, when executed by a computer, direct the computer to implement the method as defined above.

[0036] The invention also relates to a signal from a data medium carrying a computer program product as defined above. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Other advantages and features will emerge more clearly from the following description of an embodiment of a kite wing of a floating craft or rolling and / or sliding land machine and the execution of a method of operating a traction device, as well as from the accompanying drawings, in which:

[0038] Figure 1 is a partial schematic diagram of a floating boat according to one embodiment.

[0039] Figure 2 is a schematic diagram of a rolling and / or sliding land machine according to one embodiment.

[0040] Figure 3 Schematic cross-sectional view of a single-skin kite wing according to an embodiment.

[0041] Figure 4 Schematic cross-sectional view of a double-skin kite wing according to an embodiment.

[0042] Figure 5 Schematic cross-sectional view of a hybrid skin kite wing according to an embodiment.

[0043] Figure 6 is a bottom view of a wing according to an embodiment.

[0044] Figure 7 is a view of a towing device during takeoff of its kite wing according to one embodiment.

[0045] Figure 8 is a view of a first launch stage of a wing according to an embodiment.

[0046] Fig. 9 is a view of a second launch stage of a wing according to an embodiment.

[0047] Fig.10 is a view of a third launch stage of a wing according to an embodiment.

[0048] Fig.11 is a view of a fourth launch stage of a wing according to an embodiment.

[0049] Fig.12 is a view of a fifth launch stage of a wing according to an embodiment.

[0050] Fig.13 It is a superposition of the launch phase of the wing according to an embodiment variant. DETAILED DESCRIPTION

[0051] The direction of the boat's linear motion in a plane parallel to the water level is defined as the longitudinal direction. By convention, the direction in a plane parallel to the water level and perpendicular to the longitudinal direction is called the transverse direction. The third direction, perpendicular to the other two directions, is called the vertical direction.

[0052] Figure 1 There is schematically illustrated a floating vessel 1. Such a floating vessel 1 is for example a boat or a ship.

[0053] Figure 2 Schematically shown is a rolling and / or sliding land machine 2. Such a machine is, for example, a machine for use on frozen water and / or sand and / or snow and / or grass and / or mud.

[0054] A floating craft 1 , or a rolling and / or sliding land machine 2 , comprises a traction device 3 .

[0055] The traction device 3 comprises a kite 4. The kite 4 has, or comprises, a wing 5. The wing 5 is provided with, or comprises, a leading edge 6.

[0056] The traction device 3 of the floating boat 1 or the rolling and / or sliding land machine 2 also includes in particular Figure 7 The traction device 3 further comprises a first anchor point 11 of the wing 5 and a second anchor point 12 of the wing 5. The traction device 3 further comprises a first control line 21 of the wing 5 connected to the first anchor point 11 of the wing 5 and a second control line 22 of the wing 5 connected to the second anchor point 12 of the wing 5.

[0057] like Figure 3 As illustrated in , the wing 5 is, for example, of the single skin or single skin 51 type. In this case, the single skin 51 extends to form an upper surface and a leading edge 6.

[0058] like Figure 4 As shown, the wing 5 is, for example, of the double skin 52 or double surface type. In this case, for example, one skin extends to form an upper surface, while another skin extends to form a lower surface. For example, the two skins are joined together and thus form a single skin defining a volume between them. The skin of the lower surface and / or the skin of the upper surface form the leading edge 6.

[0059] like Figure 5 As shown, the wing 5 is for example of hybrid type, i.e. comprises a primary skin forming the upper surface and a secondary skin closing the volume of the leading edge on the lower surface. For example, these two skins meet before the trailing edge and thus form a single skin defining a volume between them.

[0060] For example, wing 5 comprises boxes or units or compartments. Figure 4 , 5 As shown in FIG. 6 , an air inlet 55 can be provided at the leading edge 6 in order to supply air to the unit, in particular in view of the flow of air or wind V (arrows). Furthermore, such a unit can be opened or closed, in particular by means of a valve or valve member (not shown).

[0061] Optionally, the wing 5, or kite 4, comprises a sling 56, in particular a sling of the rope type, optionally connected together by one or more clamps.

[0062] Preferably, the wings 5 ​​are flexible.

[0063] More precisely, as in Figure 6 and 7 The wing 5 extends over a length L, as indicated by the double arrow in FIG.

[0064] Wing 5 also includes special Figure 3 , 4 , 5, 6 and 7. The holding points 210 are intended to cooperate with the launch line 20. The cooperation of the holding points with the launch line 20 makes the take-off of the wing 5 of the kite easier, as will be seen later. Preferably, the holding points 210 are distributed along the length L of the wing 5. For example, the holding points 210 are regularly distributed along the length L.

[0065] "Regularly" means that in case of n holding points distributed over the length L, the length L is divided into n+1 segments or arcs of equal length, so that the positions of the n holding points can be located. Preferably, no holding points are provided at each end of the length L. In fact, preferably, the anchor points 11, 12 are provided at or near the ends of the wings.

[0066] More precisely, if Figure 3 , 4 , 5 and 6, the leading edge 6 comprises a lower region 7. The holding point 210 is preferably arranged at the lower region 7 of the leading edge 6. The holding point or attachment point 210 for launching is arranged substantially on the front quarter of the contour of the lower surface, that is to say on the front quarter relative to the direction of the wind V. Figure 4 , 5 In the case of the air inlet 55 illustrated in FIG. 6 , the holding point is arranged behind the air inlet with respect to the direction of the wind V.

[0067] like Figure 3 , 4, 5, 6 and 7, the wing 5 comprises a slide 220 at each holding point 210. In other words, the attachment point 210 is equipped with a slide 220 in order to ensure the sliding of the launching sling. If necessary, each slide 220 allows the passage of the launching line 20. For example, the slide 220 is, or comprises, an eyelet, a clasp, a loop, a friction ring, or even a diabolo or a pulley.

[0068] like Figure 7 As shown in , the wing 5 comprises a first anchor point 11 of the wing 5 and a second anchor point 12 of the wing 5. Preferably, the first anchor point 11 and the second anchor point 12 of the wing are arranged at the ends of the wing 5 substantially along the length L of the wing.

[0069] Advantageously, a single firing line 20 connects the holding points 210, for example by means of a bridle or a set of bridles separating and / or connecting them. In other words, a single firing line 20 passes through each holding point 210 and / or connects each holding point. A single firing line 20 is releasably fixed or optionally fixed to or at each holding point 210. In the case of a slide 220, the firing line 20 slides in each slide.

[0070] Preferably, if Figure 7 As shown in the figure, the traction device 3 comprises a plate 30 or a bridle. For example, the plate 30 comprises some holes and / or at least one pulley set through which the launching line 20 passes. The launching line 20 is fixed to the plate 30, for example, at one end of the launching line 20, while the rest of the launching line is free. Therefore, the free part of the launching line engages a holding point 216, then returns to the plate 30, then engages a holding point 215, then returns to the plate 30, then engages a holding point 214, then returns to the plate 30, then engages a holding point 213, then returns to the plate 30, then engages a holding point 212, then returns to the plate 30, then connects to a holding point 211, then returns to the plate 30, while extending long enough so that the operator or actuator 32 can release it little by little, thereby ensuring a smooth take-off of the wing 4. For example, holes or eyelets or rings or pulleys 31 are arranged at the plate 30 to ensure the length of the launching line to be deployed or released during take-off. In other words, the launch line connects the launch points 210 to the launch line concentrator plate 30 and / or pulley. In the case of a single continuous launch line, it is fixed to the plate and extends from the plate to the first launch point, returns to the plate and then connects to the second launch point, and so on, until after the Nth launch point it returns to the plate by passing through the plate so that the continuous line can be unwound, as will be seen later.

[0071] like Figure 1 , 2As shown in Figures 7 and 8, the floating craft including the traction device 3 further includes a deck 8, and the corresponding rolling and / or sliding land machine including the traction device 3 further includes a corresponding chassis 9. The deck or chassis includes a first attachment device 23 of the first control line 21 and a second attachment device 24 of the second control line 22. Preferably, the first attachment device 23 and the second attachment device 24 are spaced apart from each other by two thirds of the length L or two thirds of the span of the wing 5, at least approximately 20% of the two thirds of the length L. Preferably, the axis passing through the first attachment device 23 and the second attachment device 24 fixed to the deck 8 or chassis 9 is perpendicular or substantially perpendicular to the wind direction during take-off.

[0072] Advantageously, the first and second attachment means 23, 24 are movable, in particular pivotable, about a vertical axis arranged substantially between them, so as to be able to orientate the axis passing through them relative to the wind direction.

[0073] Preferably, if Figure 1 and 2 As shown, a floating boat or a rolling and / or sliding land machine comprises a computer program product 100, which comprises program code instructions recorded on a computer-readable medium for implementing the steps of the method to be described later. More preferably, a floating boat or a rolling and / or sliding land machine comprises a computer-readable data recording medium 101, on which a computer program is recorded, the computer program comprises program code instructions, and the program code instructions implement the method to be described later. The computer program product 100 comprises at least one signal 102 from the data recording medium 101.

[0074] Now combine Figure 8 , 9 , 10, 11 and 12 describe an embodiment of a method of operating the traction device 3 intended to launch the wing 5, Figure 8 , 9 , 10, 11 and 12 show inflation and gradual take-off through one ear of the wing. For example, the kite comprises a closed box leading edge with a single skin upper surface, without a clamp.

[0075] Firstly, the wing 5 is preferably kept folded, preferably in an accordion manner, for example folded in a bag or a net (not shown), for example the wing is placed on the deck 8 or the chassis 9. The launching line 20 is wound, for example so that it can be unfolded during the take-off process. A first control line 21 connects a first attachment device 23 to a first anchor point 11 of the wing 5. A second control line 22 connects a second attachment device 24 to a second anchor point 12 of the wing 5. As a reminder, preferably, the first control line 21 and the second control line 22 pass through the attachments 23, 24 that are aligned essentially on an axis perpendicular to the wind and are spaced apart by about two thirds of the wingspan of the kite. The second control line 22 is slack (because the wing part close to the second anchor point will be exposed to the wind only at the end of the launch or take-off), possibly rolled up so as not to hinder the conduct of the launching process. As Figure 8 As illustrated in , the first control line 21 is tensioned or substantially tensioned. At least, the first control line 21 is not slack and it holds the first anchor point 11. The firing line 20 connecting the different attachment points 210 and the plate 30 is shortened as much as possible in order to keep the folded wings, for example partially in a bag.

[0076] We pull the first control line 21, by approaching the first anchor point 11 of the first attachment means 23 where the first control line 21 slides, the effect being to gradually unfold the wing 5, as Figure 8 and 9 shown.

[0077] Thus, the wing 5 is held on the floating vessel or machine by the first anchor point 11 via the first control line 21, and the wing 5 is held by the holding point 211 at least closest to the first anchor point 11, such as Fig.10 It should be noted that the holding point 211 is held by the transmitting line 20, preferably by a penetration in the plate 30, as shown. Figure 5 Therefore, Figure 8 , 9 10 shows the main traction line or first control line 21 on the opposite side of the bag, which is gradually stretched and locked while waiting for full takeoff. This has the effect of spreading the end of the wing between the nearest holding point 210 through the sling 56 and the concentrating plate 30.

[0078] Then we deploy the launch line 20. The holding points 211, 212, 213 of the wing 5 held by the launch line 20 are gradually released in order to deploy the wing 5 little by little, to bring it into the wind and / or to inflate it without jolts or high and / or sudden tension. Figures 7 to 12In the case illustrated in FIG. 2 , a single firing line 20 travels back and forth between each holding point and the plate 30. In practice, as previously seen, the firing line 20 passes through the plate 30, engages and passes through the holding point 211, then engages the plate 30, then engages and passes through the holding point 212, then engages the plate 30, then engages and passes through the holding point 213, then engages the plate 30, then engages and passes through the holding point 214, then engages the plate 30, then engages and passes through the holding point 215, then engages the plate 30, then engages and passes through the holding point 216, then engages the plate 30. By "engaging" or "passing through" the plate 30, we mean that the line passes through the plate or close to the plate, for example via a hook or another sliding device that allows the firing line 30 to pass.

[0079] Thus, first the holding point 211 is released, before the holding point 212 is released, before the holding point 213 is released, before the holding point 214 is released, before the holding point 215 is released, before the holding point 216 is released. More precisely, by maintaining the release at the holding point 211, a gradual release of the firing line is established, which is greater than the release of the holding point 212, which is greater than the release of the holding point 213, which is greater than the release of the holding point 214, which is greater than the release of the holding point 215, which is greater than the release of the holding point 215. Preferably, the friction of the firing line 20 at each holding point and / or plate helps to regulate the gradual release of the holding points.

[0080] Optionally, the release of the firing line 20 is controlled, for example, by automatic means of friction, or by automatic means of a speed regulator, or by manual means, or by a brake.

[0081] Once all the holding points have been released by deployment of the launch line 20, the wing 5 is in a position where it is held by the first anchor point 11 and by all the holding points on the buoy or machine, such as Fig.11 shown (only three holding points are shown).

[0082] Then, the wing is released so that the wing is gradually released at the holding points, allowing the wing to expand and / or take off. Preferably, the release is performed gradually, one holding point after another, moving away from the first anchor point 11 and approaching the second anchor point 12, until the wing is held only by the first anchor point 11 and the second anchor point 12. The wing 5 is held on the first anchor point 11 by the first control line 21 and on the second anchor point 12 by the second control line 22, as shown in FIG. Fig.12 The firing line 20 is then kept slack and even, if possible, released from the holding points at the slide means 220 provided for each holding point.

[0083] Advantageously, to ensure the recovery of the wing 5 after the flight and / or towing phase, the launch line 20 is pulled, possibly after having pulled the second control line 22, so as to bring the holding points closer to each other, and the first control line 21 is then substantially slack, so as to allow, for example, the sail to be repaired at the second attachment means 24. Advantageously, the wing is folded like an accordion so that the holding points are closer to each other, ready for the next take-off.

[0084] In short, if Figure 3 , 4 As shown in FIG. 5 , the positioning of the holding point 210 or the attachment point of the launch sling, that is to say the point of connection of the launch line on the wing, allows inflation and stable flight, especially at high impact. In addition, this positioning ensures the take-off of the wing 5 without stalling. The holding point 210 is along the Figure 6 The distribution of the length L illustrated in FIG. 5 makes it possible to distribute the forces evenly on the wing 5. This makes it possible, for example, to maintain a given wing shape during launch and / or to avoid folding and / or breaking, in particular at the leading edge 6 of the wing 5. As a reminder, advantageously, the holding points 210 are arranged behind or substantially behind possible air inlets 55 with respect to the direction of the wind V. Finally, the positioning of the holding points 210 at the ribs and / or structural reinforcements allows the tension of the sling to be transmitted to the upper surface of the profile of the wing. The number of holding points preferably varies, for example, with the size of the kite 4, in particular with its wing, in particular with its length L or its span.

[0085] Preferably, if Figures 7 to 12 As shown, a single launch line 20 is provided, that is to say a single rope or cord or chain link. Advantageously, as previously seen, the launch line cooperates with a plate 30 which is preferably provided with pulley means, and / or holes or apertures. The cooperation of the plate with the single launch line allows the wing to take off smoothly and evenly, step by step, leaving more and more length for the launch line. To do this, the length of the launch line is released, for example by unwinding the launch line if it is wound, preferably via a ring 31 on the plate 30 ( Figure 7 ). Thanks to the distribution of the holding points 211, 212, 213, 214, 215, 216 and the launch line 20 cooperating with them via the plate 30, the flight and / or take-off and / or inflation of the wing 5 can be done little by little, for example smoothly. In addition, the plate and / or pulley system makes it possible to significantly reduce the forces required for gradually releasing slack from the launch line. In other words, the pulley system makes it possible to limit the forces intended to hold the launch line during take-off of the wing 5 by multiplying the forces. Then, if necessary, a single person can gradually release the launch line. In the case of automation, the actuator 32 only needs a small torque to gradually release the launch line 20. This leads to a low energy consumption by such an actuator.

[0086] In other words, the plate 30 enables manual or mechanical release, in particular control of the slide, during the take-off phase of the spreaders which may advantageously be grouped in a single continuous line.

[0087] As an alternative to a single launch line 20, each holding point 211, 212, 213, 214, 215, 216 can be held by a specific line. Thus, with such a structure, the steps of progressive release of the wing can be implemented in different ways. For example, we can completely release the holding point 211, then completely release the holding point 212, then completely release the holding point 213, then completely release the holding point 214, then completely release the holding point 215, and finally completely release the holding point 216, according to which the wing is also gradually released at the holding point 210, so that it is inflated and / or takes off. The release is also carried out step by step, the holding points one by one, moving away from the first anchor point 11 and approaching the second anchor point 12, until the wing is only held by the first anchor point 11 and the second anchor point 12.

[0088] Advantageously, if Figure 7 As shown, the board 30 is attached substantially to the first attachment means 23 or to the second attachment means 24, that is to say at or near one of the control lines and / or the main tow of the kite. The position of the board is preferably determined according to the control lines 21, 22 defined as optimal for launching.

[0089] Thanks to this solution, at the beginning of the wing deployment, the tension of the first control line 21 makes it possible to present any possible air inlet to the wind and / or to gradually expand the leading edge, such as Fig. 9 and 10 The deformation profile of the wing is thus maintained, especially behind the leading edge, which can then decay under the influence of the wind, allowing large angles of attack with low drag and excellent stability. By releasing the spreaders alternately, or advantageously releasing a single spreader successively via the launch line 20, the kite gradually acquires its shape and as Fig.11 and 12 Take off as shown in the figure.

[0090] Alternatively, Fig.13 A variant of the sequence of launching is schematically shown, which is suitable for the wing 50 to be held by a set of slings by means of a joint take-off bridle. Two traction lines or launch lines 200, each fixed at one end of each ear of the wing 50, make it possible to gradually gain altitude, with lateral self-stability resulting from the separation and deformation profile of the two attachment means 230, 240 or traction points on the floating boat or land machine, until the main holder with the traction lines is tensioned and operational. The two traction lines 200 used for take-off can advantageously be released after use.

[0091] Although all the slings or temporary bridles 560 intended for inflation and take-off can be removed after use, they can advantageously remain in place and allow the descent, landing and partial folding of the wing by gradually tightening them.

[0092] In summary, the solution involves a system of additional slings, preferably connected to the same launch line, permanent or temporary, usable on all types of kites, such as soft shell, single skin, double skin, open or closed shell, held by a clamp or not. This solution allows the wing to be easily deployed from the ground or from the deck of a boat and / or allows recovery by providing self-stability. This stability, peculiar to the kite, makes it possible to limit or even eliminate the need to control the kite.

[0093] Thanks to the solution, one wing of a large surface kite can be lowered easily. In addition, the forces used to produce the take-off, for example manually, are small. Moreover, the action is simple to perform. This leads to increased safety, especially during the take-off phase. Finally, the solution guarantees improved stability of the kite, especially during the inflation and take-off phases.

[0094] As a supplementary note, this solution thus achieves the purpose of facilitating the inflation and launching of the kite, in particular for towing a buoy, while improving stability and safety in this critical phase of flight, and also has the advantage of kite recovery, and the following advantages:

[0095] - It is economical,

[0096] -Easy to install on floating boats or land machinery.

Claims

1. A wing (5), a kite (4) for a traction device (3) of a floating craft (1) or a rolling and / or sliding land machine (2), in particular a flexible wing (5) of box type, in particular open or closed, or single-skinned, or double-surfaced, in particular a wing with a sling or clamp (56) distributing the traction at a plurality of points attached to the lower surface of the wing, the wing (5) extending over a length (L), characterized in that The wing (5) includes a holding point (210) for cooperating with the launch line (20) to facilitate take-off of the wing (5).

2. The wing (5) according to claim 1, characterized in that The holding points (210) are distributed, in particular regularly distributed, along the length (L) of the wing (5).

3. A wing (5) according to any one of the preceding claims, characterized in that The wing (5) comprises a leading edge (6); and the holding point (210) is arranged at a lower region (7) of the leading edge (6).

4. A wing (5) according to any one of the preceding claims, characterized in that The wing (5) comprises, at each holding point (210), a sliding device (220) for such a firing line (20), in particular an eyelet or a hook or a loop or a pulley.

5. A wing (5) according to any one of the preceding claims, characterised in that The wing (5) comprises a first anchor point (11) of the wing (5) and a second anchor point (12) of the wing (5), in particular the first anchor point (11) and the second anchor point (12) of the wing are arranged at the ends of the wing (5) substantially along the length (L) of the wing.

6. A traction device (3) for a floating craft (1) or a rolling and / or sliding land machine (2), comprising a wing (5) according to claim 5, characterized in that: The traction device (3) comprises: - Emission lines (20), - a first control line (21) for controlling the wing (5) connected to the first anchor point (11) of the wing (5), - a second control line (22) for controlling the wing (5) connected to a second anchor point (12) of the wing (5), The transmitting line (20) passes through each holding point (210) and / or is releasably fixed at each holding point (210).

7. A traction device (3) for a floating craft (1) or a rolling and / or sliding land machine (2), comprising a wing (5) according to claim 5, characterized in that: The traction device (3) comprises: - a single transmitting line (20), - a first control line (21) for controlling the wing (5) connected to a first anchor point (11) of the wing (5), - a second control line (22) for controlling the wing (5) connected to a second anchor point (12) of the wing (5), A single transmitting wire (20) passes through each holding point (210) and / or is releasably secured at each holding point (210).

8. A traction device (3) for a floating craft (1) or a rolling and / or sliding land machine (2), comprising a wing (5) according to claim 5, characterized in that: The traction device (3) comprises: - a single transmitting line (20), - a first control line (21) for controlling the wing (5) connected to a first anchor point (11) of the wing (5), - a second control line (22) for controlling the wing (5) connected to a second anchor point (12) of the wing (5), A single transmission line (20) engages each holding point (210).

9. The traction device (3) according to any one of claims 6 to 8, characterized in that The traction device (3) comprises a plate (30), in particular a plate (30) having a hole through which the launch line (20) passes and / or at least one pulley block.

10. A floating boat (1) comprising a traction device (3) according to any one of claims 6 to 9, characterized in that: The floating craft comprises a deck (8), the deck comprising a first attachment device (23) of a first control line (21) and a second attachment device (24) of a second control line (22), the first attachment device (23) and the second attachment device (24) being spaced apart from each other by a given value, in particular by approximately 20% of two thirds of the length (L) of the wing (5).

11. A rolling and / or sliding land machine (2) comprising a traction device (3) according to any one of claims 6 to 9, characterised in that The rolling and / or sliding land machine comprises a chassis (9) comprising a first attachment device (23) of a first control line (21) and a second attachment device (24) of a second control line (22), the first attachment device (23) and the second attachment device (24) being spaced apart from each other by a given value, in particular by approximately 20% of two thirds of the length (L) of the wing (5).

12. Method for operating a traction device (3) according to any one of claims 6 to 9, the method comprising the following steps: - the wing (5) is held on the floating vessel (1) or on the land machine (2) by means of a first anchor point (11) and by means of at least the holding point (211) closest to the first anchor point (11), preferably by means of one anchor point (11; 12) and by means of all holding points (210), - Relaxing the wing so as to gradually release the wing at the holding points (210) so that the wing inflates and / or takes off, by moving away from the first anchor point (11) and approaching the second anchor point (12) until the wing is held only by the first anchor point (11) and the second anchor point (12), releasing gradually from one holding point to another.

13. The method according to claim 12, characterized in that The release is controlled, in particular by automatic means by friction, or by automatic means by a speed regulator, or by manual means, or by a brake.

14. A traction device (3), characterized in that: The traction device comprises hardware and / or software elements for implementing the method according to claim 12 or 13, in particular hardware and / or software elements designed to implement the method according to claim 12 or 13, and / or the traction device comprises a device for implementing the method according to claim 12 or 13.

15. A computer program product (100) comprising program code instructions recorded on a computer-readable medium so as to implement the steps of the method according to claim 12 or 13 when the computer program is run on a computer, or a computer program product downloadable from a communication network and / or recorded on a computer-readable and / or computer-executable data medium, characterized in that The computer program product comprises instructions which, when the computer program is executed by a computer, direct the computer to implement the method according to claim 12 or 13.

16. A computer-readable data recording medium (101) having recorded thereon a computer program comprising program code instructions for implementing the method according to claim 12 or 13, or a computer-readable data recording medium comprising instructions which, when executed by a computer, direct the computer to implement the method according to claim 12 or 13.

17. A signal (102) of a data medium carrying a computer program product (100) according to claim 15.