FR3004960A1 - TRAINING DEVICE FOR SLIDING SPORT - Google Patents

Abstract

The invention relates primarily to a training device for a gliding sport involving the use of a board, which is essentially characterized in that it comprises at least a first (2c) and a second (3c) main line for supporting the board (6) extending from at least one upper attachment point (4,5; 51; 75,77,81,83) located above and away from the board (6) to respectively to a first (13) and a second (14) support members of the board (6) each extending transversely under the board (6) and each having a bearing portion (15, 16) on which the lower face (15) of said board (6). The device of the invention applies in particular the surfing training, the board then being a surfboard.

Description

Driving device for sliding sports. The invention mainly relates to a drive device for gliding sports.

The invention is in the field of sliding sports involving the use of a board on which the athlete is in balance. As a non-limitative example, it may be mentioned as a sliding sport targeted by the invention: surfing, snowboarding, wakeboarding, kiteboarding or stand-up paddleboarding.

These boardsports require the acquisition of a particular gesture on the board, and also the balance. However, this acquisition is all the more difficult because of the environmental conditions that are added to the actual gesture that it is necessary to acquire.

In this context, the present invention aims at a device for ensuring a training of balance and muscle, but also a training in the technique of gestures essential to the proper assimilation and good practice of a snow sport involving the use of a board on which the athlete is in balance.

For this purpose, the training device for a gliding sport involving the use of a board is essentially characterized in that it comprises at least a first and a second main support line of the board extending from at least one upper attachment point located above and at a distance from the board to respectively first and second support members of the board each extending transversely under the board and each having a bearing portion on which rests the underside of the said board. The device of the invention may also include the following optional features considered in isolation or in any possible technical combination: each of the first and second main lines has first and second secondary lines, the lower ends of the two secondary lines of the first main line being secured to the transverse ends of the first support member, and the lower ends of the two secondary lines of the second main line being secured to the transverse ends of the second support member, and the first and second support members are respectively disposed at level of the front part and the rear part of the board. a first and a second lower support line each extend longitudinally under the board from the transverse end of a support member to the transverse end located on the same side of the board of the opposite support element; . the device comprises a first and a second element for holding the board made of an elastic material and extending transversely close to the upper face of said board between the transverse ends respectively of the first and second support elements. a tightening strap extends transversely between the first and the second secondary line of a main line concerned by being slidably mounted on these said secondary lines. each of the first and second main lines extends at its upper end from respectively two distinct attachment points each coinciding with the upper end of the first or second secondary line to be considered, or a single point of attachment forming a junction of the upper ends of the first and second secondary lines to be considered. the first and second support lines meet in their upper part to a single upper attachment point, and the device comprises a third main line extending from an upper attachment point located at a longitudinal distance from the point d upper attachment of the first and second main support lines to the first and second branch lines of the nearest main line. the device comprises a gantry comprising at least two longitudinal parallel upper uprights connected to lower uprights resting on the ground, from which the longitudinal greater longitudinal uprights extend the first and second main lines to the first and a second support element located at a distance from the ground. the point or points of attachment of the first and second main lines are located on one or the other of the longitudinal parallel upper uprights. the device comprises a first removable fastener connected in series on a main line and a second detachable fastener mounted near the main line opposite in series on a safety line which extends between the two main lines while supporting a line of helm slidably mounted on the safety line and having at its lower end a bar next to the board to be grasped by the user of the device, the first and second removable links allowing, by their respective stall, to mount a third line main adapted to extend from an upper attachment point to the first and second secondary lines of a main line whose remaining upper end is secured to one of the remaining removable links. - The board is a surfboard. Finally, the invention relates to an application of the device as previously stated for the physical preparation and movement of a sliding sport. Other characteristics and advantages of the invention will emerge clearly from the description which is given below, by way of indication and in no way limiting, with reference to the appended figures in which: FIG. 1 is a diagrammatic representation in perspective of the device of the invention according to a first variant, - Figure 2 is an enlarged view of the circled portion II of Figures 1 and 4 taken according to the perspective angle of the arrow designating the circled portion II, - Figure 3 is a view enlarged of the circled portion III of Figures 1 and 4 taken according to the perspective angle of the arrow designating the circled portion III, - Figure 4 is a schematic perspective representation of the device of the invention according to a second variant, - the FIG. 5 is a diagrammatic representation in perspective of the device of the invention according to a third variant and in a first configuration, FIG. schematic perspective of the device 30 of the invention according to the third variant and in a second configuration, - Figure 7 is a schematic perspective representation of the device of the invention according to the third variant and in a third configuration, and - the figure 8 is a schematic representation in perspective of the device of the invention according to the third variant and in a fourth configuration.

The training device of the invention consists in its general principle to suspend a gliding board above the ground in order to benefit from the effects of the suspension to ensure balance and muscle training, but also a training in the technique gestures essential to the good assimilation and the good practice of a gliding board. With reference to FIG. 1, which represents the first embodiment of the invention, the device of the invention 1 comprises a first main support line 2 and a second main support line 3 extending substantially parallel and vertically from a upper attachment point 4, 5, for example the ceiling or on any system capable of supporting the combined weight of the board and its user, to the board 6 which extends along a longitudinal main axis XX '. Each of the first 2 and second 3 main lines doubles at mid-height to form a simple upper portion 7,8 and a split portion 15 constituted respectively of a first 9a, 10a and a second 9b, 10b secondary lines. The lower ends of the first 9a, 10a and second 9b, 10b secondary lines each comprise a clamping element 11 al lb; 12a, 12b which is made of a rope whose opposite ends comprise a node called lark head 11a1 , 11a2 (Figures 2 and 3). As will be seen later, these clamping elements allow in particular the tensioning of the device. Referring to Figures 2 and 3, the lower ends of the first 9a, 10a and second 9b, 10b secondary lines are secured, via the lark head knots 11a1,12a1 relevant fasteners elements 11 a., 1 1 b 12a, 12b, 25 to respectively a first 13 and a second 14 holding element on each of which rests the lower face 15 of the board 6. The presence of the first 9a, 10a and second 9b, 10b secondary lines secured to the first 13 and second 14 holding element allows in particular to ensure the lateral stability of the board 6. The first 13 and second 14 holding elements are respectively disposed at the front portion and the rear portion of the board 6, their longitudinal spacing being such that the board 6 has a longitudinal stability.

Each holding element 13, 14 has a bearing portion 15, 16 located transversely beneath the board 6 and on which the lower face 15 of the board 6 rests. This bearing part 15, 16 is rigid and comprises a covering, for example neoprene or rubber, allowing the immobilization of the board 6 bearing on these bearing portions 15,16. The transverse ends 17, 18 of the support elements 13, 14 consist of an end section 17, 18 visible in FIGS. 2 and 3 which extends from the bearing portion 15, 16 of the element corresponding support 13,14 up to a 19,20 fixing ring flush with the upper face 21 of the board 10 6. Note that each support element 13,14 has two opposite end sections, only one section the end sections being visible for the sake of clarity in FIGS. 2 and 3. Moreover, the end sections 17, 18 have, with the corresponding bearing part 15, 16, an angle a greater than 900 so as to match the inclined profile of the slice 23 of the board 6. As shown in Figures 2 and 3, the fastening elements 11a, 12a of the secondary lines 9a, 10a are directly fixed on the fixing ring 19,20 of the corresponding support element 13,14. With reference to FIG. 1, the device of the invention 1 comprises first 25 and second 26 lower support lines which each extend longitudinally under the board 6 from a transverse end 17, 18 of a support element 13,14 to the transverse end 17,18 of the opposite bearing element 14,13 located on the same side of the board 6. More precisely and as illustrated in Figures 2 and 3, the ends of each of the first 25 and 25 second 26 lower support lines are attached to the fixing rings 19,20 end sections 17,18 of the corresponding support elements 13,14. For this purpose, the ends of the first 25 and second 26 lower lines also consist of a clamping member 25a, 25b; 26a, 26b which is made of a rope whose opposite ends comprise a knot called lark head 25a1,25b1 (Figures 2 and 3), these clamping elements 25a, 25b; 26a, 26b to ensure the tensioning of the lower support lines 25,26. To reinforce the maintenance of the board 6 in its suspended position, the device 1 comprises a first 30 and a second 31 holding member which are made of an elastic material and which each extend at the upper face 21 of the board 6 between the end sections 17, 18 corresponding support elements 13,14. As illustrated in FIGS. 2 and 3, the opposite ends of the first 30 and second 31 holding members comprise a hook 30a, 31a which engages in the fastening rings 19,20 of the end sections 17,18 of the elements. 13,14. These holding elements 30, 31 may extend close to the upper face 21 of the board 6 but are preferably in contact with the upper face 21 of the board 6 in order to provide maximum security for holding the board 6 in place. suspension. Furthermore, in the case where the board 6 is a surfboard and to ensure the attachment of the board 6 to the device 1, a fastening system 32 extends between the opposite end sections 18 of the element. support 14 located at the rear part of the board 6, through the fastener 33 which is an integral part of the surfboard 6 ensuring the connection between the board 6 and the foot of the surfer. To do this and as shown in FIG. 3, the opposite ends of the fastening system 32 comprise a lark head type node 32a fixed in the fastening ring 20 of the opposite end sections 18 of the element 20. Rear support 14. With reference to FIG. 1, the device of the invention comprises a first 35 and a second 36 clamping strap which each extend transversely between the first 9a, 10a and the second 9b, 10b secondary line of the corresponding main line 2,3. These tightening straps 35,36 are slidably mounted relative to the first 9a, 10a and second 9b, 10b secondary lines according to the arrows Fi, F2 so as to vary the intensity of the exercise. More precisely, when the tightening straps 35,36 have come down close to the board 6, the distance between the first 9a, 10a and second 9b, 10b secondary lines of the associated main lines 2,3 becomes less important. The board 6 then becomes more unstable and the exercise is then more difficult. On the contrary, when the adjustment bars 35,36 are raised, the distance between the first 9a, 10a and second 9b, 10b secondary lines of the associated main lines 2,3 is greater. The board 6 is more stable and the exercise is simpler.

Still with reference to FIG. 1, a safety line 37 extends longitudinally between the upper simple parts 7, 8 of the main lines 2, 3. A bar line 38 is suspended vertically above the board 6 extending from the safety line 37 to which said bar line 38 is slidably mounted via a ring 39, to a bar 40 intended to be grasped by the user to work on the device 1. The bar line 38 has at its ends two clamping elements 38a, 38b whose opposite ends comprise a knot said lark head and which allow, by their tightening, to adjust the length of the bar line 38 according to the size of the user and the exercise performed. Various clamping elements 11a, 11b, 12a, 12b, 25a, 26a, 25b, 26b, 38a, 38b have already been described. These are the clamping elements 11a, 11b, 12a, 12b situated in the lower part of the first 9a, 10a and second 9b, 10b secondary lines, clamping elements 25a, 26a, 25b, 26b located at the ends of the lower lines of support 25,26 located under the board 6, and clamping elements 38a, 38b of the bar line 38. The device of the invention 1 further comprises two clamping elements 7a, 8a located in the lower part of the upper single parts 7.8 of the lines of the main lines 2.3. These clamping elements 7a, 8a also have at their opposite ends lark head type nodes to reduce or increase their length by adjusting at the same time the length of the main lines 2,3 and their voltage. The safety line 37 also comprises two clamping elements 37a, 37b located at the opposite ends of said safety line 37 and providing adjustment of the length of this safety line 37. All these clamping elements 7a, 8a 11a, 11b, 12a, 12b, 25a, 25b, 26a, 26b, 37a, 37b, 38a, 38b allow, when taken in isolation, to adjust the length and voltage of the line on which they are, and when considered together, to adjust the voltage of the device of the invention 1. The device of the invention 1 as described above in its first embodiment, ensures the drive in axis on a board in suspension. The device of the invention illustrated in FIG. 4 according to a second embodiment makes it possible to drive the board in rotation.

The device 50 according to this second variant comprises a number of elements common with the device 1 of the first variant. For the sake of clarity, the common references are included in the description below. The device 50 of the second variant comprises a first main support line 2 and a second main support line 3 which meet in their upper part to a single upper attachment point 51 In addition to this difference in their point d the upper and first two and second main lines are identical to those described with reference to FIG. 1, namely their splitting to form first 9a, 10a and second 9b, 10b secondary lines and their attachment in the lower part to 6 are also common with the device 1 of the first variant, the support bars 13,14, the lower support lines 25,26, the elastic holding elements 30,31, the fixing element 32 when the board 6 is a surfboard and 35.36 tightening straps. The relative fixations of all these elements are also identical to those described above with reference to FIGS. 1, 2 and 3. The device 50 according to the second variant comprises a third main line 52 which extends from an upper attachment point 53 located at a longitudinal distance from the point of attachment 51 of the first 2 and second 3 main lines of the front side of the board 6, to the first 9a and second 9b secondary lines of the first main line 2. The fixing of the third main line 52 at the first 9a and second 9b secondary lines of the first main line 2 is provided by two clamping elements 52a, 52b assembled together at their upper end and to adjust the length of the third main line 52 thus adjusting the deflection of the rotation of the device 50 of the second variant. The third main line 52 further comprises an additional clamping element 52c arranged in series and for adjusting the voltage of this line 52. The implementation of these three main lines 2,3,52 allows the user to work his balance in rotation.

The device of the invention 1,50 comprises means for moving quickly and simply the device in the axis of Figure 1 to the rotating device of Figure 4, and vice versa. To do this and with reference to Figure 1, the device of the invention 1 5 comprises a first 54 and a second 55 removable connection. The first removable link 54 is arranged in series on the first main line 2 between the clamping element 7a of this first main line 2 and the junction 56 between the simple upper part 7 of the first main line 2 and the safety line 37. The second removable link 55 is arranged in series on the safety line 37 after the clamping member 37b of this safety line 37 located on the side of the second main line 3. The first 54 and second 55 removable links comprise their opposite ends means allowing them to unhook and easy hooking of the line in question, for example a carabiner. First, the first 54 and second 55 removable links can be used to delete the security line 37 of the device 1 of the first variant. The device 1 without a safety line 37 makes it possible to work the movements on the board 6 and the muscular relaxation for people 20 of advanced level. Such a device 1 also makes it possible to acquire a better perception of the impact of the movement of the shoulders on the movement of the board 6. Moreover, the first 54 and second 55 removable links also make it possible to move from the device to the axis of the 1 to the rotating device 25 of FIG. 4. To do this, it suffices to unhook the first removable connection 54 at the level of the arrow A represented in FIG. 1 and the second removable connection 55 at the level of the arrow B, this which results in the detachment of a portion of line for forming the third main line 52 of the device of the second variant. For this purpose, the safety line 37 of the device 1 of FIG. 1 further comprises two adjacent additional clamping elements 52a, 52b arranged in series on the said safety line 37 following the detachable connection 55 on the opposite side. of the clamping member 37b. These two clamping elements 52a, 52b are intended to be used for the device 50 of the second variant as previously described with reference to FIG. 4.

Once the two removable links 54, 55 are unhooked, the upper attachment point 4 of the first main line 2 of the device of FIG. 1 is offset longitudinally towards the front of the board 6 to become the point of attachment 53 of the the third main line 52 of the device of FIG. 4.

The two adjacent clamping elements 52a, 52b of the safety line 37 of the device of FIG. 1 are then respectively fixed on the first 9a and second 9b secondary lines, their respective upper ends being secured. As a result, the first removable connecting element 54 is inactive by being suspended by its upper end to the clamping element 37a originally located at the end of the safety line 37 on the side of the first main line 2 On the other hand, at the first 2 and second 3 main lines, the clamping member 7a is attached to the second removable link 55 and the upper attachment point 5 of the second main line 3 is centered above the board 6 and thus becomes the single point of attachment 51 of the first 2 and second 3 main lines of the device of the second variant illustrated in FIG. 4. Of course, the passage of the device in rotation of FIG. Figure 1 is made by the reverse operations of those just described. The modular nature of the device enables it to move from the axis configuration (FIG. 1) to the rotational configuration (FIG. 2) in an easy and fast manner. Moreover, the device adapts to any type of gliding sports board, in particular by the presence of the various clamping elements. According to another alternative embodiment not shown and remaining within the scope of the invention, the device can take the form of the device 50 of FIG. 4 without having a third main line 52. Such a device makes it possible to ensure the training of a work of acceleration by compression and decompression of the legs. Preferably, the third main line 52 is present extending freely from the upper attachment 53. The user can thus grasp it to help the rotational movements. Referring to Figures 5 to 8 and according to a third variant of the invention, the device of the invention 1 is suspended from a gantry 60. With reference to Figure 5, this gantry 60 is composed mainly in its lower part of two longitudinal lower longitudinal uprights 61,62 and two transverse lower parallel uprights 63,64 which rest on the floor.

In its upper part, two longitudinal upper longitudinal uprights 65,66 are fixed at the respective intersections between the longitudinal lower parallel uprights 61,62 and the transverse lower parallel uprights 63,64 by means of two pairs of oblique uprights 71,72, 73.74. The oblique orientation of the latter amounts 71,72, 73,74 is explained by the fact that the width P1 between the two longitudinal lower longitudinal uprights 61,62 is greater than the width P2 between the two longitudinal upper longitudinal uprights 65, 66. Preferred dimensions of the gantry 60 are given below with reference to FIG. 6. Although these dimensions are not limiting, they are particularly suitable for the suspension of the device of the invention 1. The width P1 between the two parallel uprights lower longitudinal 61,62 is 160 centimeters, the width P2 between the two longitudinal upper longitudinal struts 65,66 is 40 centimeters, the length P3 of the two longitudinal lower longitudinal struts 61,62 is 240 centimeters, the length P4 of each oblique amounts 71,72, 73,74 is 240 centimeters and the length P5 of the two transverse lower parallel legs 63,64 is also 240 centimeters. In this variant, the two longitudinal upper longitudinal uprights 65,66 form upper attachment of the first 2a, 2b, 2c and second 3a, 3b, 3c main support lines of the board 6. These two longitudinal upper longitudinal uprights 65,66 allow this effect of making several configurations of possible upper fasteners according to the desired intensity of the exercise and according to the work in the axis or in rotation that it is desired to accentuate.

More specifically and with reference to FIG. 5, each of the first 2a and second 3a main support line consists of two parallel parallel lines 2a1,2a2; 3a1,3a2 which each extend from the respective transverse ends of the first 13 and second 14 support element. For each pair of secondary line 2a1,2a2; 3a1,3a2, a first secondary line 2a1,3a1 is fixed by its upper end at a point of attachment to one of the two longitudinal upper longitudinal uprights 65 and the second secondary line 2a2 3a2 is fixed at its upper end at a point of attachment to the opposite longitudinal upper parallel pillar 66.

In this configuration, the intensity of the exercise is quite low since the distance between the first and second respective secondary lines 2a1,2a2; 3a1,3a2 is maximum over the entire height of the suspension. With reference to FIG. 6, each of the first 2b and second 3b main support line consists of two secondary lines 2b1,2b2; 3b1,3b2 which each extend from the respective transverse ends of the first 13 and second 14 support members . For the main line before 2b, the first secondary line 2b1 and the second secondary line 3b1 are fixed by their respective upper ends at a common attachment point 75 to a longitudinal upper pillar 65. The common attachment point 75 could be indifferently located on the opposite longitudinal upper amount 66. A clamping strap 76 extends transversely between the first 2b1 and the second 3b1 secondary line being slidably mounted. This tightening strap 76 is identical to that described above with reference to FIG. 1. For the rear main line 3b, the first secondary line 3b1 is fixed by its upper end at a point of attachment to one of the two uprights. longitudinal upper parallel 65 and the second secondary line 3b2 is fixed by its upper end at a point of attachment to the opposite longitudinal upper amount 66. Thus in this configuration, the intensity of the exercise can be adjusted at the front portion of the board 6 by the sliding of the tightening strap 76 while the rear part of the board 6 remains stable by the presence of the first 3b1 and second 3b2 parallel secondary lines.

With reference to FIG. 7, each of the first 2c and second 3c main support line consists of two parallel parallel lines 2c1,2c2; 3c1,3c2 which each extend from the respective transverse ends of the first 13th and second 14th element. support. For the main line before 2c, the first secondary line 2c1 and the second secondary line 3c1 are fixed by their respective upper ends at a common attachment point 77 to a longitudinal upper pillar 65. The common attachment point 77 could be indifferently located on the opposite longitudinal upper amount 66. A tightening strap 79 extends transversely between the first 2b1 and the second 3b1 secondary line being slidably mounted. Similarly, for the rear main line 3c, the first sub-line 3c1 and the second sub-line 3c2 are fixed by their respective upper ends at a common attachment point 78 to a longitudinal upper post 65. The attachment point common 78 could indifferently be located on the opposite longitudinal upper amount 66. A tightening strap 80 extends transversely between the first 2b1 and the second 3b1 secondary line being slidably mounted.

In this configuration, the intensity of the exercise can be adjusted both at the front portion of the board 6 and at its rear portion. It should be noted for the configurations described with reference to FIGS. 5 to 6 that a tightening strap may also be formed between the secondary lines 2a1, 2a2, 3a1, 3a2, 3b1, 3b2 which are fixed to the gantry 60 by a point d specific attachment to each secondary line considered. In this case, the tightening strap will be of width less than the width between two secondary lines considered 2a1,2a2; 3a1,3a2; 3b1,3b2 to vary the spacing between these two secondary lines 2a1,2a2; 3a1,3a2; 3b1,3b2, and thus change the intensity of the exercise at this part of the board.

FIG. 8 shows the adaptation of the configuration of the second variant of FIG. 3 to the installation of the device on the gantry 60. The references relating to FIG. 7 are repeated since the configuration of FIG. 8 can be obtained from FIG. 7. The two attachment points 77, 78 of the configuration of FIG. 7 are joined together at a single attachment point 81 on one of the two longitudinal upper uprights 65. The third main line 82 is mounted on the device extending from the first 2c1 and second 2c2 secondary lines of the main line before 2c, to a point of attachment 82 located at a transverse upper amount 84 connecting the two upper longitudinal uprights 65.66.

This third main line 32 is identical to the third main line 52 described with reference to FIG. 4. This configuration makes it possible, like that of FIG. 4, to drive the board 6 in rotation.

The gantry 60 thus makes it possible to easily modulate the intensity and the type of driving exercises by modifying the arrangement of the upper fastenings of the main support lines of the board. Although not included in the description of Figures 5 to 8, all the elements other than the suspension means of the board 6 to the gantry 60 are present in the third variant of Figures 5 to 8, these elements including the holding elements 13 , 14, their assembly on the board 6 and their components, the various clamping elements, the lower support lines and the removable links.

Whatever the variant considered, the point or points of attachment of the first 2,2a, 2b, 2c and second 3,3a, 3b, 3c main line of the support of the board 6 are located above and away from the said This particular arrangement of the attachment point or points makes it possible to approach more specifically the conditions of use of a board, in particular surfing, on the water. Moreover, this arrangement of the attachment point or points also makes it possible to be able to arrange the secondary lines of the first and second main lines, to be able to choose one or two points of attachment per main line according to the desired intensity of the exercise, to be able to arrange a single point of attachment with the third main line for work in rotation, and to be able to arrange the tightening straps between two secondary lines to also vary the intensity of the exercise. The device of the invention in all its variants thus makes it possible to serve as a physical and gestural preparation support for a gliding sport. This device can also serve as an element of bodybuilding, balance and stretching, or relaxation support. 30

Claims (12)

REVENDICATIONS1. A training device for a gliding sport involving the use of a board, characterized in that it comprises at least a first (2,2a, 2b, 2c) and a second (3,3a, 3b, 3c) main support lines of the board (6) extending from at least one upper attachment point (4,5; 51; 75,77,81,83) located above and away from the board (6) up to respectively a first (13) and a second (14) support members of the board (6) each extending transversely under the board (6) and each having a bearing portion (15, 16) on which rests the lower face (15) of said board (6). 2. Device according to claim 1, characterized in that each of the first (2,2a, 2b, 2c) and second (3, 3a, 3b, 3c) main lines comprises a first (9a, 9b, 2a1,3a1,2b1 , 3b1,2c1,3c1) and a second (10a, 10b, 2a2,3a2,2b2,3b2,2c2,3c2) secondary lines, the lower ends of the two secondary lines (9a, 9b, 2a1,3a1,2b1,3b1, 2c1,3c1) of the first main line (2, 2a, 2b, 2c) being secured to the transverse ends (17) of the first support element (13), and the lower ends of the two secondary lines (10a, 10b, 2a2, 3a2,2b2,3b2,2c2,3c2) of the second main line (3, 3a, 3b, 3c) being secured to the transverse ends (18) of the second support element (14), and in that the first (13) and second (14) support members are respectively disposed at the front portion and the rear portion of the board (6). 3. Device according to claim 2, characterized in that a first (25) and a second (26) lower support lines each extend longitudinally under the board (6) from the transverse end (17) of a support member (13) to the transverse end (18) on the same side of the board (6) of the opposite support member (14). 4. Device according to any one of the preceding claims, characterized in that it comprises a first (30) and a second (31) holding member of the board (6) made of an elastic material and extending transversely to proximity of the upper face (21) of said board (6) between the transverse ends (17,18) respectively of the first (13) and second (14) support elements. 5. Device according to any one of claims 2 to 4, characterized in that a clamping strap (35,36) extends transversely between the first (9a, 9b, 2b1,2c1,3c1) and the second ( 10,10b, 2b2,2c2,3c2) secondary line of a main line concerned (2, 2b, 2c, 3c) being slidably mounted on said secondary lines (9a, 9b, 2b1,2c1,3c1; 10a, 10b, 2b2,2c2,3c2). 6. Device according to any one of the preceding claims, characterized in that each of the first (2, 2a, 2b, 2c) and second (3, 3a, 3b, 3c) main line extends at its upper end. from respectively two distinct attachment points each coinciding with the upper end of the first (2a) or second (3a, 3b) secondary line to be considered, or a single attachment point (75, 77, 78) forming a joint upper ends of the first (2b) and second (2c, 3c) secondary line to consider. 7. Device according to any one of claims 1 to 5, characterized in that the first (2,2c) and second (3,3c) support lines meet in their upper part to an upper attachment point single (51,81), and in that it comprises a third main line (52,82) extending from an upper attachment point (53,83) located at a longitudinal distance from the upper attachment point (51,83). , 81) of the first (2,2c) and second (3,3c) main support lines to the first (9a, 2c1) and second (9b, 2c2) secondary lines of the main line (2,2c) closer. 8. Device according to any one of the preceding claims, characterized in that it comprises a gantry (60) comprising at least two longitudinal parallel upper uprights (65,66) connected to lower amounts (61,62,63,64 ) resting on the ground, from which longitudinal upper longitudinal uprights (65,66) extend the first (2, 2a, 2b, 2c) and second (3, 3a, 3b, 3c) main lines to the first (13). ) and a second (14) support element located at a distance from the ground. 9. Device according to claim 8, characterized in that the point or points of attachment (75,77,78,81) of the first (2, 2a, 2b, 2c) and second (3, 3a, 3b, 3c) main lines are located on one (65,66) or the other (66,65) longitudinal parallel upper uprights (65,66). 10. Device according to any one of claims 2 to 9, characterized in that it comprises a first removable fastener (54) connected in series on a main line (2) and a second removable fastener (55) mounted near the the opposite main line (3) in series on a safety line (37) extending between the two main lines (2,3) supporting a bar line (38) slidably mounted on the safety line (37); ) and having at its lower end a bar (40) facing the board (6) to be grasped by the user of the device (1), the first (54) and second (55) removable connections allowing, by their respective stall, to mount a third main line (52) adapted to extend from an upper attachment point (53) to the first (9a) and second (9b) secondary lines of a main line (2) of which the remaining upper end is secured to one of the removable links remaining (54,55). 11. Device according to any one of the preceding claims, characterized in that the board (6) is a surfboard. 12. Use of the device according to any one of the preceding claims for the physical and physical preparation of a gliding sport.