WO2023218376A1

WO2023218376A1 - Kit for installing hydrofoils on a boat, in particular on a wind-propelled boat, and method for installing such a kit on such a boat

Info

Publication number: WO2023218376A1
Application number: PCT/IB2023/054838
Authority: WO
Inventors: Guillaume BONNIOT
Original assignee: Gb Naval Development
Priority date: 2022-05-11
Filing date: 2023-05-10
Publication date: 2023-11-16
Also published as: FR3135442A1

Abstract

The invention relates to a kit for installing hydrofoils (22, 32, 45, 55) for a boat (1). The kit for installing hydrofoils (22, 32, 45, 55) comprises: at least one support block (21, 31); and at least two hydrofoil arms (22, 32) each having a hydrofoil (24, 34). The or each support block (21, 31) comprises: at least one adapter part shaped to cooperate with a structural element (15, 13) of the boat (1) and to be attached thereto, the adapter part providing a reference plane for the hydrofoil arm(s); and a plate on which at least one of the hydrofoil arms (22, 32) is intended to be mounted, the plate being capable of being mounted on the adapter part along the reference plane.

Description

Title: Kit for installing supporting planes on a boat, particularly wind-powered, and method for installing such a kit on such a boat

Technical area

The invention relates to the field of submerged supporting surfaces fitted to boats.

The invention thus relates more precisely to a kit for installing supporting surfaces on a boat and to a method for installing such a kit.

State of the prior art

If boats equipped with supporting planes (or, according to its English name which is generally used, "hydrofoils"), or hydrofoils, become more popular and begin to multiply, there would nevertheless be a certain interest in allowing recycling of boats existing by providing installation kits for supporting surfaces to allow their conversion.

By “carrying plane” or “carrying planes”, it is understood, above and in the rest of this document, a profiled element to provide a lift force to the boat that it equips, such elements are also known under the name “carrying wings” or even “lifting planes”, or, according to the more usual English name “foils” or “hydrofoils”, and equip boats of the “hydrofoil” type (or in English “hydrofoil”).

If such installation kits exist, they generally have the disadvantage of being adapted to a single boat reference and it is necessary to modify them extensively to equip another type of boat.

Thus, there would be an interest in providing a “universal” installation kit that can easily be adapted depending on the boat that must be equipped. Presentation of the invention

The invention aims to remedy the above drawback and thus aims to provide an installation kit for supporting planes which can easily be adapted to the boat it must equip.

To this end, the invention relates to a kit for installing supporting planes for boats, particularly wind-powered boats, the boat comprising at least one structural element, the kit for installing supporting planes comprising: at least one support block intended to be fixed to the at least one structural element, at least two supporting plane arms each having a supporting plane intended to be at least partly immersed, in which, the or each support block comprises: an adaptation part shaped to cooperate with the structural element and be fixed to the latter, the adaptation part providing a reference plane for the supporting plane arm(s), at least one plate on which at least one of the arms is intended to be mounted of a supporting plane, the plate being able to be mounted on the adaptation part along the reference plane.

With such a support plan installation kit, only the adaptation part has to be adapted to the boat. Indeed the latter, providing a reference plane along which the plate and therefore the support plane arms can be installed, it is possible to provide one or more plates and support plane arms adapted to the type of boat to allow to equip it. As a result, it is possible to provide a universal support kit with only the adaptation part(s) which need to be adapted to the boat to be fitted.

The boat comprises at least two hulls connected to each other by at least one connecting arm, said at least one connecting arm forming the structural element, the adaptation part preferably having a longitudinal housing shaped to receive a part of the connecting arm forming the support element. Such an installation of the elements of the kit on a connecting arm of a multihull boat is particularly suitable since it ensures a stable orientation of the supporting plane arms with respect to the hulls of the boat.

According to a possibility not included in the context of the present invention, the boat can be monohull and comprise a deck and a hull, the structural element comprising at least the deck of the boat, the adaptation part having a support surface complementary to a portion of the deck of the boat on which is intended to come to rest, one of the adaptation piece and the plate preferably comprising a strap passage to allow the passage of a strap surrounding the hull in order to fix the support block to the bridge.

In this way, according to a possibility not included in the context of the present invention, the adaptation part makes it possible to provide a reference plane which is, due to the complementarity of shape with respect to a portion of the bridge , perfectly defined in relation to the hull.

Each supporting plane arm can be mounted on the corresponding plate from at least a first and a second ball joint arranged on either side of said supporting plane arm with at least one of the first and second ball joint which is mounted movable in translation with respect to the plate.

The first and second ball joint of each supporting plane arm can both be movable in translation with respect to the plate.

The support plane installation kit may include, for each support plane arm, an adjustment system comprising two gears meshed together and integral in rotation with the first and second ball joint respectively.

The first and second ball joint can equip one end of the supporting plane arm which is free from the supporting plane by together defining a pivot axis of the supporting plane arm with respect to the structural element, and in which it is further provided is a complementary support for the carrier plane arm on the boat on which the carrier plane arm is mounted by means of a removable sliding pivot connection such as that provided by a strap. Such ball joints associated with the different configurations listed above allow easy adjustment of the orientation of the supporting plane arms and the supporting planes that they comprise.

The carrier plane installation kit may further comprise at least one rudder having an additional carrier plane, preferably of the T-shaped carrier plane type.

Such a rudder equipped with a supporting plane makes it possible to add lift to the kit according to the invention and therefore makes it possible to provide a particularly optimized conversion of the boat as a hydrofoil.

The support plane installation kit may further comprise a mounting system to enable the at least one rudder to be mounted on the boat, the mounting system comprising: a first and a second mounting elements movable in rotation to the hull of the boat around a common rudder axis, the second mounting element being intended to be arranged along the rudder axis below the first mounting element when the boat is afloat, the first mounting element having an axis pivot along which the rudder is intended to pivot, the pivot axis being transverse to the rudder axis, and the second mounting element is intended to be assembled to one of the rudder and the hull by elastic fitting .

With such a mounting system, the rudder presents reduced risks of damage compared to rudders mounted with a mounting system according to the prior art.

The invention further relates to a method of equipping a boat with an installation kit for supporting planes according to the invention, the boat comprising at least one structural element, the equipment method comprising the following steps: fixing at least one adaptation part on the structural element, fixing at least one plate to the at least one adaptation part along the reference plane, the adaptation part and the plate participating in the formation of at least one support block, assembly of the supporting plane arms on the deck(s).

Such a method allows the installation of a kit according to the invention and obtaining the advantages attached thereto.

Brief description of the drawings

The present invention will be better understood on reading the description of exemplary embodiments, given for purely indicative purposes and in no way limiting, with reference to the appended drawings in which: Figure IA illustrates a rear three-quarter view of a boat equipped with a kit according to a first embodiment of the invention, one support plane arm of said kit being installed, the other being being installed. Figure IB illustrates a three-quarter side view of the boat illustrated in Figure IA, Figure 2 schematically illustrates the principle of installing the supporting plane arms of a kit according to the first embodiment of the invention, the Figure 3 illustrates the support block system used as part of the installation of the support plane arms according to this first embodiment, Figure 4A illustrates in a schematic top view the principle of adjusting the inclination of an arm of a supporting plane according to the first embodiment of the invention, Figure 4B illustrates in a schematic side view the principle of adjusting the inclination of an arm of a supporting plane according to the invention already illustrated in Figure 4A, Figure 5A illustrates the mounting system according to the invention of a rudder fitted to the kit of the invention, Figure 5B illustrates in partial close-up view the mounting system of Figure 5A showing a combination of a pivot connection and a force fit offering a function of protecting the rudder, Figure 5C illustrates in partial close-up view a supporting plane equipping the rudder and a depth portion of said rudder, Figure 6A illustrates in a top view the principle of adjusting the inclination of a carrier plane arm according to a second embodiment of the invention, Figure 6B illustrates according to a side view the principle of adjusting the inclination of a support plane arm according to the variant of the invention illustrated in Figure 6A, Figure 7 illustrates a kit for installing support planes according to one embodiment not included in the scope of the invention, this kit equipping a monohull boat, Figure 8A illustrates in a three-quarter front view the mounting of a supporting plane arm on a plate implemented in the context of the third mode embodiment of the invention, Figure 8B illustrates in a three-quarter bottom view of the assembly of a carrier plane arm illustrated in Figure 8A, Figure 9 illustrates the assembly of a carrier plane arm according to a fourth embodiment in which the mounting of the supporting plane arm is made from a single ball joint and a pivot connection.

Identical, similar or equivalent parts of the different figures bear the same numerical references so as to facilitate the transition from one figure to another.

The different parts represented in the figures are not necessarily on a uniform scale, to make the figures more readable.

The different possibilities (variants and embodiments) must be understood as not being exclusive of each other and can be combined with each other. Detailed presentation of particular embodiments

Figures IA and IB illustrate a boat 1, here a catamaran, equipped with an installation kit for supporting planes 22, 32, 45, 55 according to the invention so that the latter forms a hydrofoil.

It will be noted, of course, that if in the context of this embodiment, the installation kit for supporting planes 22, 32, 45, 55 equips a boat 1 of the catamaran type, this can be adapted to other types of boats, such as a trimaran, as will be shown in the following embodiments.

It will be noted that according to a possibility not included in the scope of the present invention and which is described in the remainder of this document, it is possible to adapt the kit for installing supporting planes for monohull boats.

The boat 1 comprises a structural element 15, here one of the connecting arms 15, 16, on which part of the installation kit for supporting planes 22, 32, 45, 55 is installed.

An installation kit for supporting planes 22, 32, 45, 55 according to the present embodiment comprises, as shown in Figure 2: two support blocks 21, 31 each intended to be fixed to the at least one structural element 15 , that is to say one of the connecting arms 15, 16 of the boat 1, two supporting plane arms 22, 32 each having a supporting plane 24, 34 intended to be at least partly submerged, each arm of carrier plane 22, 32 being mounted on a support block 21, 31 which is respective to it, two rudders each equipped with a T-shaped carrier plane 45, 55.

It should be noted that, according to an advantageous and optional possibility of the invention, shown in Figure 2, the installation kit of supporting planes can also include a control system 17 capable of communicating with a system for modifying the motorized configuration, not shown, and control said system to adapt the arrangement of the supporting plane arms 22, 32. Note nevertheless, in a usual configuration of the invention, the arrangement of the supporting plane arms 22, 32 is adjusted manually by a member of the crew of boat 1. The support block 21, 31 comprises, as shown in Figure 3: two adaptation parts 212A, 212B, shaped to cooperate with the structural element 15, 13 and be fixed to the latter, the adaptation parts providing a plane reference for the supporting plane arm 22, a plate 211 on which the supporting plane arm 22 is mounted, the plate 211 being mounted on the adaptation parts 212A, 212B along the reference plane.

As shown in Figure 3, in the present embodiment, two adaptation parts 212A, 212B are provided consisting of two half-shells sandwiching the structural element, that is to say the arm connection 15. The first adaptation part 212A, “top” part, has an L shape, while the second adaptation part 212B, “bottom” part, has a U shape in order to best accommodate the lower part of the connecting arm 15. Such a conformation allows the adaptation parts 212A, 212B, from the shape of the portion of the connecting arm 15 which they house, to provide a reference plane, with respect to -screw of the waterline of the boat, for the plate 211 and therefore the supporting plane arm 22 which is mounted on the plate 211. As shown in Figure 3, the U shape of the second adaptation part 212B forms a housing so as to stabilize its placement on the connecting arm 15, and that of the first adaptation part 212A. Note that the surface of the first adaptation part 212A which is opposite the deck of the boat defines the reference plane.

Each of the first and second adaptation parts is preferably made of a rigid material such as a thermoplastic, a composite material or even wood.

It will of course be noted that if in the present embodiment, said surface of the first adaptation part 212A materializes the reference plane, this plane may not present materiality, since by the provision of a support surface , not necessarily flat, the adaptation part(s) 212A, 212B make it possible to ensure the orientation of the plate 211, and therefore of the supporting plane arm 22, with respect to the waterline of the boat 1.

According to one possibility of the invention shown in Figure 3, the first adaptation part 212A can have a recess in order to authorize the placement of a system 213 for adjusting the orientation of the supporting plane arm 22 on the plate, said adjustment system 213 comprising a set of gears to allow height adjustment of the ball joint(s) 215, 216, illustrated in the figures 4A and 4B.

In accordance with Figure 3, in the present embodiment, the plate 211 has a complementary shape with the adaptation parts 212A, 212B. Thus, the plate 211 has a U shape with the two branches of the U which define a housing shaped to receive the adaptation parts 212A, 212B. The fixing of the plate 211 on the adaptation parts 212A, 212B is done by elastic fitting and by translation along the axis of the connecting arm of the boat. The plate 211 thus ensures good fixing of the adaptation parts 212A, 212B on the connecting arm 15. It will of course be noted that such elastic fitting is only an example of mounting the plate 211 on the adaptation parts, any other assembly, such as screwing, riveting or welding can be considered. It should nevertheless be noted that in the context of the invention, a removable assembly is to be preferred.

Each plate is preferably made of a rigid material such as a thermoplastic, a composite material, wood or even metal and in particular stainless steel.

Each support plane arm 22, 32 comprises, as shown in Figures IA and IB, comprises a fixing arm 23, 33 by which the support plane arm 22, 32 is mounted on the plate 211, and a support plane 24, 34 as such which, by being fixed to one end of the fixing arm 23, 33, is intended to be at least partly submerged. The supporting plane 24, 34 is profiled in order to provide a lift force when the boat 1 moves. Of course, if in the present embodiment, the support arm 23, 33 and the support plane 24, 34 are distinct from each other, it is possible to provide a one-piece support plane arm 22, 32 with the support arm 23, 33 and the supporting plane 24, 34 which are then formed integral with each other.

Each supporting plane arm 22, 32 can be mounted on the corresponding plate 211 from at least two ball joints 215, 216, 217. In this first embodiment, as shown in Figures 4A and 4B, each plane arm carrier 22, 32 is mounted on the corresponding plate 211 from a first and second ball joints 215, 216 located on either side of the carrier plane arm in order to define a first pivot connection and another ball joint 217 which is arranged at one end of the carrier plane arm 22, 32 which is free from the carrier plane 24, 34 this with a lateral offset to define a second pivot connection with the second ball joint 216. The first ball joint 215 is mounted movable in translation with respect to the plate 211 in order to allow adjustment of the “height” of the first ball joint 215 In this way, an adjustment of its height, from the adjustment system 213, allows the supporting plane arm 22, 32 to pivot around the second pivot connection and thus adjust the orientation of the supporting planes with respect to screw of the connecting arm 15 and therefore of the boat 1. It will be noted that according to one possibility of the invention, the third ball joint 217 can be removable in such a way as to allow the supporting plane arm to pivot around an axis defined by the first and second ball joint 215, 216 when it is removed from the third ball joint 217.

As also shown in Figures 4A and 4B, a complementary support 214 can be provided, for example arranged on a deck of the boat 1, complementary in order to provide an additional fixing point for the supporting plane arm 22, 32. According to this possibility , the supporting plane arm 22, 32 can be fixed to this complementary support 214 from a sliding pivot connection as provided, for example and as illustrated by Figures 4A and 4B, from a strap 214A attaching the supporting plane arm 22, 32 to said complementary support 214.

As shown in Figures IA and IB, the installation kit for carrier planes 22, 32, 45, 55 according to the present embodiment also includes two rudders 44, 54 each equipped with a T-shaped carrier plane 45, 55. In order to allow the boat 1 to be maneuvered, each of the rudders is extended by a bar 42, 52 which is respective to it.

According to one possibility of the invention illustrated in Figures 5A and 5B, each rudder 44, 54 is mounted on a respective hull 11, 12 of the boat 1, and more precisely on the transom of said hulls 11, 12, by means of a mounting system 43. The mounting system 43 comprises an intermediate part 431 fixed to the transom, and a first and a second mounting element 432, 433 by means of which the rudder 44, 54 is mounted to the hull 11, 12 from boat 1, the first and the second mounting element 432, 433 are mounted movable in rotation with respect to the intermediate part 431, and therefore to the hull of the boat, around a rudder axis which is common to them. The second mounting element 433 is arranged along the rudder axis below the first mounting element 432 when the boat 1 is afloat.

Note that, according to the principle similar to the adaptation parts 212A, 212B, the intermediate part 431 is adapted according to the shape of the transom to be equipped. Thus, in the kit, to allow the installation of each rudder, only the intermediate part 431 has to be adapted to the boat 1 to be equipped, the other elements relating to the rudder including in particular the first and second mounting elements 432, 433 can be standardized.

The first mounting element 432 has a pivot axis 432A along which the rudder 44 is movably mounted in rotation, the pivot axis 432A being transverse to the rudder axis and is, preferably and more precisely, substantially perpendicular to the axis. rudder. More specifically, the first element 432 has on a first portion a through orifice in which the rudder axis passes (lock or needle, depending on the rudder configuration, as discussed below) and on a second portion two others orifices through which the pivot pin 432A passes. The pivot pin 432A is transverse to the rudder pin.

The second mounting element 433 is assembled to one of the rudder 44 and the hull 11 (through the intermediate piece 431), here the rudder 44, by elastic fitting. Of course, according to a variant not illustrated, the mounting element 433 can be assembled to the intermediate part 431, therefore the shell, by elastic snap-fastening, this elastic snap-fastening then also making it possible to provide a movable assembly in rotation around the axis rudder. To allow such elastic mounting, the second mounting element 433 has on a first portion a through orifice through which the rudder axis passes and on a second portion comprising two arms each having a cantilevered tongue, the arms together defining a reception space for a rudder fixing member 44 preferably having a relief face. It will be noted that if the first and second mounting elements 432, 433 are provided in the form of two independent parts, it is also possible, without departing from the scope of the invention, that the first and second elements of assembly 432, 433 are supplied in the form of a single part. Likewise, if the first and second elements 432, 433 are mounted in the present embodiment, pivoting around the rudder axis forming the rudder stock, it is also possible that the first and second elements 432, 433 are mounted on the intermediate piece 431, or even the hull, by means of a respective needle, the first and the second element then each forming a femelot.

According to a possibility not illustrated, the first element 432 can be mounted removable on the hull, this making the first element 432 free to pivot around the pivot axis 432A and to disengage from the rudder axis, or rudder. In this way, when the user wishes to remove the rudder in order to store it, he can disengage the first element and disengage the second element from its attachment by elastic engagement so as to separate the rudder 44, 54 from the hull 11, 12.

The rudder 44, as shown in Figure 5A, comprises: a frame 442 by which the rudder 44 is mounted on the first and second mounting elements 432, 433, rudder body 441 slidably mounted in the frame 442 in order to allow an adjustment of the depth of the rudder 44, a securing system, such as a pin, in the position of the rudder body 441 on the frame 442, not shown.

The frame 442 has a first and a second extension, extending towards the shell 11, 12, from which the frame is respectively mounted on the first and the second mounting element 432, 433. The first extension is pivotally mounted around the pivot axis 432A. The second extension forms the fixing member and preferably presents, as shown in Figure 5B and towards the shell 11: two grooves extending on either side of the second extension in a direction parallel to the rudder axis, configured to each accommodate a respective cantilevered tongue of the second mounting element 433, a relief face, for facilitate the introduction of the second member into the reception space defined by the second mounting element.

With such mounting of the rudder 44 on the hull of the boat, when the rudder encounters an obstacle, such as the bottom or a rock or an unidentified floating object, the forces applying to the rudder 44 due to this encounter will cause a dislocation of the second extension with respect to the second mounting element 433 and a pivoting of the rudder 44 around the pivot axis 432A in a direction opposite to the movement of the boat 1 thus making it possible to limit the risks of damage to the rudder 44.

In the context of this embodiment, the rudder body 441 has a supporting plane 45 here in a T shape. Of course, if such a supporting plane 45 is linked to the use of a mounting system in the context of a installation kit for supporting planes 22, 32, 45, 55, such a rudder mounting system 43 is perfectly usable for the assembly of a simple rudder not comprising a supporting plane or not using an armature 442 since such a mounting system offers both a protective function and ease of handling of the latter, regardless of its configuration.

In order to allow the inclination of the carrier planes 45, 55 fitted to the rudders 44, 54 to be adjusted, in the context of the invention, it is possible to provide a system for adjusting the incidence of the carrier plane, not shown. Such an angle of attack adjustment system can be accessible on the bar 32, 42 associated with said rudder 44 or even directly accessible on the rudder 44, the adjustment then being made either on the ground or by raising the rudder 44.

As shown in Figure 5C, according to a particularly advantageous possibility of the invention in the context of such a mounting system, the rudder 44 can comprise a portion of depth 443 arranged on one end of the rudder 44 intended to be opposite the hull and at the front of the latter, in a direction of movement of the boat 1. The depth portion 443 comprises an element made of deformable material, such as an elastomer which may be, for example, a natural or synthetic rubber. Such a depth portion 443 comprising a deformable material, such as an elastomer, makes it possible to absorb part of the forces exerted on the rudder 44 when the latter encounters an obstacle.

According to a variant of the invention not shown, the rudder body 441 can have two installation orientations in the frame 442, one with the supporting plane 45 arranged on the bottom of the rudder 44, that is to say say below the waterline of the boat, and the other with the supporting plane arranged on the top of the rudder 44, that is to say above the waterline. In this way, with such a rudder body 441, the rudder 44 can be used as part of a hydrofoil configuration, that is to say with the supporting plane 45 arranged on the bottom of the rudder 44 as in a classic configuration, that is to say with the supporting plane 45 arranged on the top of the rudder 44.

According to such a variant, a method of changing the orientation of the rudder can be provided comprising the following steps: disengagement of the second mounting element 433 from its elastic fitting in order to allow pivoting of the frame around the axis of pivot 432A, pivoting of the rudder 44 around the pivot axis 432A in order to bring it to an orientation close to horizontal and removal of the securing system in order to allow the rudder body 441 to slide in the frame 442, removal of the rudder body 441 from the frame 442 and turning of the latter in order to change its orientation, installation of the rudder body 441 in the frame 442 with the new orientation, securing the positioning of the rudder body 441 in the frame 442 by reinstalling the security system.

It will be noted that in the context of the invention, an installation kit for supporting planes 22, 32, 45, 55 according to this first embodiment can be installed according to an installation method comprising the following steps: fixing the two adaptation parts 212 on the structural element 15, that is to say the connecting arm 15, fixing each of the plates 211 on the corresponding adaptation part 212 along the defined reference plane by the latter, each adaptation part 212 and the corresponding plate 211 participating in the formation of the corresponding support block 21, 31, mounting of each of the supporting plane arms 22, 32 on the respective plate 211, assembly, for each of the rudders 44, 54 and on the corresponding hull 11, 12, of the first and second mounting element 432, 433 movable in rotation with respect to the hull 11, 12 of the corresponding boat 1 around a rudder axis which is common to said mounting elements 432, 433 this by means of the intermediate piece 431, the second mounting element 433 corresponding to said rudder 44, 54 being arranged along the rudder axis under the first mounting element 432 corresponding when the boat 1 is afloat, mounting each rudder 44, 54 movable in rotation around the pivot axis 432A of the first corresponding element 432, said pivot axis 432A being transverse to the corresponding rudder axis, each second mounting element being assembled to the rudder by elastic fitting.

Figures 6A and 6B illustrate the assembly of a supporting plane arm 22 according to a second embodiment. A support plane installation kit 22, 32, 45, 55 according to this second embodiment differs from a support plane installation kit 22, 32, 44, 55 according to the first embodiment in that the supporting plane arm 22 is mounted on the plate 211 from the first and the second ball joint 215, 216 which are both movable in translation with respect to the plate 211, the plate being devoid of third ball joint 217 and in that the supporting plane arm 22 is fixed to the complementary support 214 from a sliding pivot connection provided by a strap 214A attaching the supporting plane arm 22 to said complementary support 214.

In this second embodiment and for each supporting plane arm 22, 32, the first and second ball joint 215, 216, by equipping the end of said carrier plane arm 22, 32 free from the carrier plane, together define a pivot axis of the carrier plane arm 22, 32 with respect to the structural element 15.

In this way, when each supporting plane arm 22, 32 is released from the strap 214A which provides the sliding pivot connection to the complementary support 214, said supporting plane arm 22, 32 is able to tilt with respect to the structural element, here the connecting arm 15 and thus be raised out of the water. Such tilting makes it possible to limit the handling constraints of the boat 1 when it is brought ashore for storage or in heavy weather not compatible with a hydrofoil configuration.

Figures 7 to 8B illustrate a monohull boat 1 equipped with a support plane installation kit according to an embodiment not included in the scope of the invention. An installation kit for supporting planes 22, 32, 45, 55 according to this third embodiment differs from an installation kit for supporting planes 22, 32, 45, 55 according to the second embodiment in that a single adaptation part 212 and a single plate 211 are provided forming a single support block on which the two supporting plane arms 22, 32 are mounted, in that the deck 13 of the boat 1 forms the structural element, in that the supporting planes 34 bearing plane arms 22, 32 are T-shaped supporting planes and in that the fixing of the adaptation part on the bridge 13 is obtained by means of a strap 218 passing through the part d adaptation 212 and going around the hull 11.

It will be noted that this strap 218, as shown in Figure 7, in this embodiment not included in the scope of the invention and in which the kit for installing supporting planes equips a monohull boat 1, can come to bear on the keel 14 in such a way as to improve the fixing of the adaptation part on the deck 13. The adaptation part 212 and the plate 211 extend over the entire width of the deck 13.

Figures 8A and 8B show the mounting of each of the supporting plane arms 22, 32 on the single plate 211. It can thus be seen that in this third embodiment, in a manner similar to the second embodiment, each arm carrier plane 22, 32 is mounted on the plate 211 using a first and a second ball joint 215, 216 arranged at one end of the carrier plane arm 22, 32 which is free from the carrier plane by defining together a pivot axis, which is here provided by means of a pivot 216A connecting the first and the second ball joint 215, 216. Of course, such pivot 216A, as is the case for the second embodiment, is not necessary and the first and second ball joints 215, 216 are capable of providing such mounting without the pivot being necessary.

In a manner identical to the second embodiment, the first and the second ball joint 215, 216 are both movable in translation with respect to the plate 211. To do this, the adjustment system 213 comprises two gears, not referenced, meshed together and integral in rotation with respectively the first and the second ball joint 215, 216. As shown in Figure 8B, one of the gears is provided with a pulley intended to be coupled with a winch, not shown, by the use of a belt, not shown. Alternatively, the pulley can be operated manually by a simple rope kept under tension acting as a belt. In this way, manipulation of the winch makes it possible to rotate the two gears in a counter-rotating movement which in turn causes a movement of the first and second ball joints 215, 216 with respect to the plate 211 which is opposite each other and therefore a pivoting of the supporting plane arm 22, 32.

Each supporting plane arm 22, 32 is also mounted on the plate 211 by means of the complementary support 214 of the supporting plane arm on which the supporting plane arm 22, 32 is mounted by means of a removable sliding pivot connection such as that provided by strap 214A. Such a sliding pivot connection does not hinder the pivoting of the supporting plane arm 22, 32 when adjusting the height of the first and second ball joints 215, 216 with respect to the plate 211 by means of the adjustment system 213. It will be noted that in this third embodiment, in order to allow stable placement with respect to the plate, the complementary support has a base having a surface complementary to the upper surface of the plate 211.

Figure 9 illustrates the assembly of a supporting plane arm according to a fourth embodiment of the invention. A kit for installing carrier planes 22, 32, 45, 55 according to this fourth embodiment differs from a kit of carrier planes 22, 32, 45, 55 according to the first embodiment in that each plane arm carrier 22,32 is mounted on the plate 211 by means of a single ball joint 215 and in that there is also provided a complementary support 214 of the carrier plane arm 22,32 on the boat 1 on which the supporting plane arm 22, 32 is mounted by means of a sliding pivot connection, preferably removable, such as that provided by a strap 214A.

In this way, each supporting plane arm 22, 32 is able to pivot, to allow adjustment of the inclination of the supporting plane 24, while being secured to the connecting arm 15 by the ball joint 215. In the present mode embodiment, in a preferential manner, it can be provided an inclination adjustment system, not shown, such as a system for controlling the pivoting of the fixing arm 23. Such a system for controlling the pivoting can comprise a gear arranged at the level of the pivot connection meshing with a complementary toothed portion of the fixing arm 23. In this way, by associating this gear with a control of its rotation, for example a lever or a crank, it is possible to rotate the arm fixing device 23 and change the orientation of the corresponding supporting plane 24. According to a variant, such an inclination adjustment system can be associated with the ball joint 215.

As indicated, and in a manner similar to what has been described in the context of Figures 6A, 6B, 8A and 8B, the pivot connection can be provided by a strap 214A. This strap 214A can be associated with a complementary support 214. As is the case in the context of Figures 6A, 6B, 8A and 8B. This complementary support 214 can be distinct from the plate 211 and mounted on the connecting arm 15. Alternatively, the complementary support 214 can be integral with the plate 211. According to this variant, each supporting plane arm 22, 32 is only mounted on the connecting arm 15 by the plate 211.

Claims

1. Kit for installing supporting planes (22, 32, 45, 55) for a boat (1) in particular with wind propulsion, the boat (1) comprising at least two hulls (11, 12) connected to one another another by at least one connecting arm (15, 16), said connecting arm forming a structural element (15), the kit for installing supporting planes (22, 32, 45, 55) comprising: at least one support block (21, 31) intended to be fixed to the at least one structural element (15, 13), at least two supporting plane arms (22, 32) each having a supporting plane (24, 34) intended to be at least partly immersed, in which the or each support block (21, 31) comprises: at least one adaptation part (212) shaped to cooperate with the structural element (15, 13) and be fixed to the latter, the adaptation part (212) providing a reference plane for the supporting plane arm(s) (22, 32), a plate (211) on which at least one of the arm(s) is intended to be mounted supporting plane (22, 32), the plate (211) being able to be mounted on the adaptation part (212) along the reference plane, in which the adaptation part (212) preferably has a longitudinal housing shaped to receive part of the connecting arm (15) forming the support element.

2. Supporting plane installation kit (22, 32, 45, 55) according to claim 1, in which each supporting plane arm (24, 34) is mounted on the corresponding plate (211) from at least a first and a second ball joint (215, 216) arranged on either side of said supporting plane arm (22, 32) with at least one of the first and second ball joints (215, 216) which is mounted movable in translation with respect to the plate (211).

3. Supporting plane installation kit (22, 32, 45, 55) according to claim 2, wherein the first and second ball joint (215, 216) of each supporting plane arm (24, 34) are both movable in translation with respect to the plate (211).

4. Carrier plane installation kit (22, 32, 45, 55) according to claim 3 further comprising, for each carrier plane arm (24, 34), an adjustment system (213) comprising two gears geared together and integral in rotation with respectively the first and the second ball joint (215, 216).

5. Installation kit for supporting planes (22, 32, 45, 55) according to any one of claims 2 to 4, in which the first and the second ball joint (215, 216) equip one end of the supporting plane arm (22, 32) which is free from the supporting plane by together defining a pivot axis of the supporting plane arm (22, 32) with respect to the structural element (15), and in which it is furthermore provided a complementary support (214) of the carrier plane arm (22,32) on the boat (1) on which the carrier plane arm (22, 32) is mounted by means of a sliding pivot connection, preferably removable, such than that provided by a strap (214A).

6. Supporting plane installation kit (22, 32, 45, 55) according to claim 1, in which each supporting plane arm (24, 34) is mounted on the corresponding plate (211) from a ball joint (215) and in which there is further provided a complementary support (214) of the carrier plane arm (22, 32) on the boat (1) on which the carrier plane arm (22, 32) is mounted by means of a sliding pivot connection, preferably removable, such as that provided by a strap (214A).

7. Supporting plane installation kit (22, 32, 45, 55) according to claim 6, in which there is also provided for each supporting plane arm with an inclination adjustment system.

8. Kit for installing carrier planes (22, 32, 45, 55) according to any one of claims 1 to 7, further comprising at least one rudder (44) presenting an additional supporting plane (45) preferably of the T-shaped supporting plane type.

9. Installation kit for supporting planes (22, 32, 45, 55) according to claim 8 further comprising a mounting system to allow the at least one rudder (44, 54) to be mounted on the boat (1) , the mounting system comprising: a first and a second mounting elements (432, 433) movable in rotation to the hull (11, 12) of the boat (1) around a common rudder axis, the second mounting element (433) being intended to be arranged along the rudder pin below the first mounting member when the boat (1) is afloat, the first mounting member (432) having a pivot pin (432A) along which is intended to pivot the rudder (44), the pivot axis (432A) being transverse to the rudder axis, and in that the second mounting element (433) is intended to be assembled to one of the rudder (44, 54) and the hull (1) by elastic fitting.

10. Method for equipping a boat (1) with an installation kit for supporting planes (22, 32, 45, 55) according to any one of claims 1 to 9, the boat (1) comprising at least a structural element (15), the equipment method comprising the following steps: fixing at least one adaptation part (212) on the structural element (15, 13), fixing at least one plate (211) to the at least one adaptation part (212) along the reference plane, the adaptation part (212) and the plate participating in the formation of at least one support block (21), assembly support plane arms (22, 32) on the plate(s) (211).