This invention refers to a control device to be applied to sporting activity on water, ground or snow using a board on which the sportsman or surfer stand, a kite and a driving or towing means such as that provided by a motor boat or land vehicle, without the need of constant wind. When the sail is pulled and flown, and steered by the user of the board, the effect is the same as with a kite, that is to say a thrust upwards to make the jumps lighter and to have more time available to manoeuvre or do tricks.

With regard to the state of the technique or prior art of this invention, the following documents related to patents are to be mentioned: US 6.834.607B1 (Johnson et al) published December 28, 2004, US 7.575.198B2 (Hardhan et al) August 18, 2009, US 2003/0116071A1 (Starbuck) June 26, 2006, US 2011/0309199A1 (Hastilow) December 22, 2011, US 2006/0226294A1 (Logosz et al) October 12, 2006, US 2008/0223989A1 (Mutzemberg) September 18, 2008, and patent US 7.182.294B2 (Blackman) February 27, 2007. Document US-A-2008/0128558 discloses the features of the preamble of claim 1.

This invention has clear advantages compared to these patent documents such as the lack of need of wind to achieve an upward thrust, it improves the runner safety, it provides more possibilities to perform tricks since it gives more freedom, it is not necessary to have an harness or an ejection system in case of an emergency, solving the emergency situation by releasing the bar, There is also no need to use a power control system in the bar, and most important of all us to be able to have softer falls than in kitesurf or wakeboard, since it is thrust upwardly.

The invention is defined by the features of claim 1.

This invention, different from the devices mentioned in the state of the technique, proposes two elements, on one hand a linking body with the most important function, which connects the lines going from the bar to the sail or kite, connecting only one rope to the towing vehicle, and on the other hand two lines going through the linking body movably so that the sportsman can control the kite from one side to the other (buckling or side inclination) when pulling the bar or command from any of the sides. The third line, since it is fixed to this linking body or device, allows both other lines to accomplish their function appropriately, and it also permits the trimming or regulation of the angle of attack or of incidence of the sail or kite while flying, when increasing or reducing its pressure or speed. A second element comprising a smaller bar enables to re-launch the kite once in the water, when this rests with the leading edge upwardly. When pulling this bar, a more favourable incidence can be obtained for the arrival of the kite to the zenith.

In order to make this invention more comprehensible, it has been illustrated with schematic figures, in a preferred manner of embodiment and as an example for demonstration purposes, where:

• Figure 1 shows a scheme of the system for sporting activity wherein the control device of this invention is applied;
• Figure 2 shows a perspective view of the control device of this invention.

In both Figures, same reference numbers correspond to the same elements of the invention.

We see in Figure 1 a preferred manner of embodiment of the invention, with a user 1 holding control device 2 proposed in this application, from which cords or control lines 3 spread, stretching out until making contact with the corresponding lines 4 which hold the kite 5 in its furthest end. Likewise, said cords or control lines 3 continue through towing cords or ropes 6 connected to a motor boat 7, or any other motor vehicle used in any other embodiment of this invention. Furthermore an angle formation 8 is also shown, made up between lines 3 linked to the kite and lines or cords 6 connected to the motor vehicle.

Likewise, in Figure 2 a detailed description of the control device 2 can be observed, which comprises a control shaft 10, from which ends the two lines 11 and 14 spread, one of them (11) converging jointly with the one belonging to the other end of the shaft 10, previously going through a second smaller bar 12, for re-launching, and continuing with a ballast, regulation or trimming element (incidence of the kite) 13.

Finally, second lines 14 of each end of the control bar 10 go through the substantially spherical elements 15 to re-launch the kite. These spheres 15 provide the grip f lines 14 in the event it is necessary to rotate the sail when this is resting on the water over its leading edge.

The abovementioned lines 14 stretch until they make contact with bodies, flanges or pulleys 16 able to be moved, and from which left line 4a and right line 4c extend; they continue after said bodies 16 up to binding body 17, to which additionally towing line 6 is linked.

In other preferred embodiments, spherical elements 15 may not be present although they provide re-launching, the same as the presence of a smaller re-launching bar 12.

It is essential in the invention the presence of the device or linking body 17, with its three lines, a central fixed one 4b, and two movable lines 4a and 4c that are on the leading edge of the kite 5 to get control of the same, being fundamentally movable, and directed to each end of the kite 5, near the trailing edge.

As regards angle 8, the same can be modified so that the kite 5 pushes forwardly horizontally or more upwardly vertically and consequently jumps and water release is easier for beginners. An angle 8 of less value will provide easiness for the sportsman to get out of the water making the jumps lighter; said smaller angle being obtained when shortening lines 3 or lengthening cord 6 which is joined to the motor boat or other traction vehicle used. On the contrary, if the angle is big, traction will result horizontal and consequently there will be less pressure upwards for the sportsman, being this a more difficult and demanding practice.

Hereinafter the operation being performed by the sportsman and by the driver of the motor boat or traction vehicle is described:

1. 1. Beginning with a front wind or from the boat with forward wind if there were, the driver accelerates the motor boat while the sportsman controls the kite 5 and gets out of the water with said kite.
2. 2. With speed enough, the kite 5 will reach the zenith and at that moment the driver shall drive perpendicular to the wind to avoid its influence.
3. 3. The size of the kite 5 shall be chosen according to the weight or speed desired. If there is only one size, the length of cord 6 shall be adjusted so that angle 8 can be varied and thus the power of the kite 5, all of this according to the need of upward traction of each sportsman and his ability or level.
4. 4. In order to achieve a greater climb or elevation, angle 8 is reduced, lengthening cord 6 or shortening control lines 3.
5. 5. Re-launching bar 12 is pushed when the kite 5 is leaning on the trailing edge or the leading edge upwards, being this the correct position for re-launching.
6. 6. When the kite 5 is leaning on the leading edge, spherical elements 15 are pushed, preferably one green and the other red, depending on which side needs to spin.