System for tool-less mounting of hydrofoil wings

Abstract

The universal system for toolless mounting of wings to hydrofoils, according to the invention, is applicable to various types of hydrofoils, and provides quick and easy mounting of wings to hydrofoils. The system comprises a plate (4) with a rotation hole (4C), in which a rotary eccentric body (5A) is placed, connected to a rotating lever (5). When the rotating lever (5) is locked, the plate (4) provides pressure that presses and fixes the wing to the hydrofoil's fuselage.

Description

TECHNICAL FIELD

[0001] The present invention relates to the field of water sports equipment, more particularly hydrofoils, and more particularly the invention relates to a system for mounting wings to hydrofoils.PRIOR ART

[0002] Hydrofoil is a means of moving in water, which includes the following main parts: a surfboard - an above-water platform, under which a hydrofoil is mounted - an underwater part. In turn, the underwater part is a set of hydrofoils - usually stabilizing and supporting, but not only, located on an underwater arrow-shaped body - a fuselage, which is mounted to the above-water platform, by means of a mast with a streamlined profile. The mast connects the above-water platform to the fuselage. There are known variants in which the hydrofoils are mounted directly to the mast. Hydrofoils can be of different types depending on the method of propulsion - for example, wing foil, kite foil, windsurfing foil, surf foil, pump foil and others. When the propulsion is by electric motor, the hydrofoil becomes electric or e-foil. Its design is far more complex and comprises additional modules such as: power source (most often rechargeable battery), charge-discharge control module for the power source, electric motor, motor control module, sensor unit, main control unit that takes care of synchronizing the operation of the individual units, remote control, and others.

[0003] Given the variety of hydrofoil means for movement in water, it has also become necessary to develop different types and sizes of underwater wings for mounting on the underwater part. In practice, the wings have to carry the entire weight of the above-water part, which comprises the operator (surfer), so in some embodiments the wings have larger overall dimensions. Another reason for having different wings is that they have different hydrodynamic resistance and characteristics when moving in the water. Some wings are being designated for use by "beginner" surfers and others for "advanced" surfers. Various solutions are known for mounting wings to the fuselage. One such is by using a bolted mechanical connection, as described in US2015225040A1, for example in Fig. 8 and Fig. 9. The wing is mounted to the mast by means of an additional plate through a rod and detachable fastening means. This design is complex and involves a large number of structural elements that must be mounted and dismantled in order to replace the wing. Also, since these structural elements are detachable from each other, it is possible that some of them may be lost during disassembly. The many structural elements require the user of the watercraft to have some knowledge of mechanics, as well as to have a set of tools to assemble or disassemble the wing to / from the fuselage in order to store it for subsequent use or to replace it with another.

[0004] Another known solution for mounting a wing is to mount it to the mast, for example the fuselage being part of it, as described in US2015314837A1, for example in Fig. 1 and Fig. 2. For this purpose, the fuselage comprises a central segment in which the wings are mounted with the ability of dismantling (disassembly), by means of assembly and locking means in the longitudinal direction of the central segment. The wing - the so-called "first segment" and the central segment are connected end to end by the assembly means, which comprise a pair formed by a male connector and a female connector, interacting by a specific blocking. A disadvantage of this method of mounting is that the wing must have a strictly defined design that allows it to be mounted to the central segment by means of various assembly parts, a rod with the ability of locking and additional mechanical details. This design is extremely complicated and limits the wing to be used only on a specific hydrofoil device with a specific design for mounting the wing to the fuselage.

[0005] Another solution for mounting a wing without the use of specialized tools is known, disclosed in WO2024233545A1, for example in Fig. 3 and Fig. 4. It comprises a mast, a hydrofoil system with integrated wings and front and rear fuselages, having tapered sections, a flange having an internal passage, sized to encompass and retain one of the tapered sections, and a pulling mechanism configured to pull the integrated wing and fuselage so that the contacting tapered sections are wedged into assembly. The pulling mechanism can be manually operated lever that applies force that pulls first part of the integrated wing and fuselage, and second part of the integrated rear wing and fuselage towards each other. The relative movement transmitted to the first part of the integrated wing and fuselage, and the second part of the integrated rear wing and fuselage by the actuator may be adjustable. A disadvantage of this solution for mounting a wing is the wedging of the two mechanical parts against each other in a flange - this creates friction forces that can damage the two wedging and contacting sections, and also lead to the destruction of the flange due to the forces that arise, namely the two sections tend to expand it as a result of the pulling force of the mechanism. The fact that the latter has the ability to adjust the pulling force (by the surfer) provides the operator (performing the assembly action) the opportunity to overtighten (to pull with a force above the permissible one) when assembling and engaging the two sections, and thus to cause irreparable or costly damage to one or more of the parts involved in the assembly (the mechanical connection). This method of mounting, as well as the fact that the wings are an integral part of the fuselage, limits its application to exactly the specific solution and is not applicable to other watercrafts of this type. The described design does not imply its use in electric hydrofoils, in which the electrical cables providing energy for the propulsion means (electric motor, for example) usually pass through the tubular body - the mast. Due to the disadvantages listed above, the design is not suitable for repeated use over a long period of time, because wedging and friction during use can lead to a shortening of the service life of the engaged mechanical parts.SUMMARY OF THE INVENTION

[0006] The object of the present invention is to create an alternative universal system for toolless mounting of wings to a hydrofoil, which is simple and easy, and also suitable for electric hydrofoils.

[0007] This object is achieved by creating a universal system for toolless mounting of wings to hydrofoils, comprising a base, a plate with a rotation hole and at least one elongated through hole for stud bolt and a rotating lever with an eccentric body, which is integrally or detachably connected to one end of the rotating lever, and the rotary eccentric body is partially placed in the rotation hole, the rotary eccentric body is also located on the base with the ability of rotation. The rotary eccentric body is configured to rotate around an axis that is parallel or transverse to the plane of the plate, wherein the lever is fixed to the plate or to the base, integrally or by at least one fastening means, and the plate is configured with ability to move horizontally or vertically and horizontally relative to the base between two end positions, respectively a first and a second position, in one position the plate is configured for locking, and in the other it is configured for unlocking from at least one stud bolt, between first and second positions when the rotary eccentric body is rotated. In the first position, the plate is freely detachable from the at least one stud bolt, and in the second position, it engages with the at least one stud bolt. When the rotating lever is rotated, the rotary eccentric body is configured with ability to simultaneously rotate in a seat in the base and maintain its position therein, or with ability to simultaneously rotate in the plate's rotation hole and displace its position therein, between a locked position of the rotating lever, in which the plate is fixed to the wing, and an unlocked position of the rotating lever, in which the plate is freely detachable from the wing.

[0008] The at least one elongated hole of the plate is configured to receive a stud bolt of corresponding shape in one part thereof, and has a means for fixing a stud bolt in the other part thereof.

[0009] In one embodiment of the invention, the base is an adapter for attaching a wing to a fuselage, having at least one through hole configured to receive a stud bolt of corresponding shape.

[0010] In an alternative embodiment of the invention, the base is part of a wing.

[0011] In a preferred embodiment of the invention, the system for toolless mounting of wings to hydrofoils comprises a protective cover detachably mounted to the base and / or to the rotating lever.

[0012] In one embodiment of the invention, the rotary eccentric body is a cylindrical element with a through hole, displaced in radial direction from the axis of symmetry of the rotary eccentric body in direction of the rotating lever, and parallel to the axis of the rotary eccentric body, and it is fixed on the lower side in the mounted position of the rotating lever, and it is located partially in the seat in the base, which seat has a shape corresponding at least partially to the arc of the rotary eccentric body. The rotating lever together with the rotary eccentric body are configured to be rotatable in direction in a plane perpendicular to the flat surface of the plate. A fastening means is located in the through hole of the rotary eccentric body, which fastening means is a shaft with a length greater than the length of the through hole of the rotary eccentric body, and both ends of the shaft protrude from the through hole of the rotary eccentric body and are hingedly arranged in respective lugs formed on the plate at two opposite sides of the rotation hole for partial placement of the rotary eccentric body, which rotation hole is of elongated shape. In the unlocked position of the rotating lever and in the first position of the plate, the plate is displaced from the rotary eccentric body in direction of the base, and in the locked position of the rotating lever and in the second position of the plate, the plate is displaced from the rotary eccentric body vertically further away from the base relative to the unlocked position of the rotating lever and the first position of the plate. Preferably, in a lower part of the rotary eccentric body, which contacts the base, a stop recess 12 is formed, in which a stop protrusion 11 in the base, complementary to the shape of the stop recess, engages, to provide a stop for displacement in horizontal direction of the plate relative to the base. Preferably, in a lower part of the rotary eccentric body, which contacts the base, at least one limiting recess is formed, in which at least one limiting protrusion in the base, complementary to shape of the limiting recess, engages, to provide a limit for displacement of the rotating lever relative to the base in direction of the plate parallel to the axis of the rotary eccentric body.

[0013] In another embodiment of the invention, the rotation hole for the rotary body is elongated in two directions, the rotary eccentric body being attached to the rotating lever. The rotating lever together with the rotary eccentric body are configured to be axially rotatable in a plane parallel to the flat surface of the plate, the eccentric being configured to be movable between the two extensions of the rotation hole for the rotary eccentric body, respectively between the unlocked and locked positions of the rotating lever. Through holes are formed at one end of the rotating lever and in the eccentric, in which through holes the fastening means is located, which is a shaft, along the axis of which the rotating lever and the eccentric rotate, the shaft is positioned perpendicular to the flat surface of the plate, and it is fixed against unintentional extraction from the through holes of the rotating lever and the rotary eccentric body by a fixing means.

[0014] In an alternative embodiment of the invention, the means for fixing a stud bolt in the at least one elongated hole of the plate is a constriction for retaining collar of a stud bolt, formed at one end along its extension.

[0015] In one embodiment of the invention, at the border of the constriction, on its inner side, there is at least one internal wedging means for stud bolt, which is a spring-hinged part.

[0016] In one embodiment of the invention, the spring-hinged part is beveled on the upper side in direction of the non-constricted part of the elongated hole in which it is located, the length of the part of the stud bolt that protrudes above the base to the collar of the stud bolt is equal to the height of the constricted end of the elongated hole. In a position in which the stud bolt is located in the constricted end of the elongated hole, the collar of the stud bolt is located above the plate and exerts pressure in direction of the wing to close the gap between the plate and the wing. If there are spring-hinged parts, then they can be beveled on the upper side in order to lock the stud bolts and to exert pressure from the plate to the wing.

[0017] The universal system for toolless mounting of wings to hydrofoils, according to the invention, is a part of a hydrofoil, also comprising a fuselage with a mounted wing, wherein at least one stud bolt is mounted on the upper side of the fuselage, which protrudes partially above it, at its free end the at least one stud bolt has at least one recess and / or protrusion for detachable attachment to the plate by means of horizontal displacement of the plate relative to the at least one stud bolt, by means of the extension of its respective elongated hole, between a fixed position of the at least one stud bolt, in which the recess and / or protrusion of the stud bolt is placed in the means for fixing the stud bolt in the respective elongated hole, and a free position of the at least one stud bolt, in which the recess and / or protrusion of the stud bolt is placed outside the constriction of the respective elongated hole, wherein the rotation of the rotary body in the rotation hole is transformed into a horizontal displacement of the plate relative to the wing between the fixed and free positions of the stud bolt.

[0018] The described additional universal system for mounting wings to hydrofoils has the following advantages over all alternative solutions known to date: the proposed system allows its application on almost all existing variants of standard wing-to-fuselage attachment with screws; it eliminates the use of screws and tools, thus greatly improving the use of the product; the difficulty and time of assembly is reduced by eliminating the insertion of screws and the use of tools for their tightening and loosening; the possibility of errors such as using the wrong size screws, the wrong tool, insufficient tightening or overtightening of the screws is avoided, which errors can lead to wing or fuselage breakage, loss of the wing, increased risk of hydrofoil instability, falls and injuries; it is suitable for electric hydrofoils; it has universal application for different wing attachment options with screws from different manufacturers, and instead of standard wing screws, stud bolts with locking element, such as collar, are screwed into the fuselage to provide the ability to engage or tighten or press the described mechanism of the wing mounting system to hydrofoils. BRIEF DESCRIPTION OF THE ATTACHED FIGURES

[0019] Further in the description, the universal system for toolless mounting of wings to hydrofoils, the object of the invention, is explained by preferred embodiments, given as non-limiting the scope examples of the invention, with reference to the attached figures, where: Figure 1 is top profile view of a hydrofoil with universal system for toolless mounting of wings to hydrofoils, according to one embodiment of the invention. Figure 2 is detailed view of a portion of Figure 1 showing the universal system for toolless mounting of wings to hydrofoils, with the direction of movement of the lever and the direction of sliding of the plate shown. Figure 3 shows the universal system for toolless mounting of wings to hydrofoils of Figures 1 and 2, in locked state. Figure 4 is partial view of the universal system for toolless mounting of wings to hydrofoils of Figures 1-3, in unlocked state. Figure 5 is partial view of the universal system for toolless mounting of wings to hydrofoils of Figures 1-4, in locked state. Figure 6 is exploded view of the universal system for toolless mounting of wings to hydrofoils of Figures 1-5. Figure 7 is cross-sectional view of the universal system for toolless mounting of wings to hydrofoils of Figures 1-6, in unlocked state. Figure 8 is cross-sectional view of the universal system for toolless mounting of wings to hydrofoils of Figures 1-7, in locked state. Figure 9 is cross-section of one embodiment of the universal system for toolless mounting of wings to hydrofoils, in locked state, and with a rotating eccentric body having a stop recess that contacts a stop protrusion in the base 1. Figure 10 is top view of the adapter of the universal system for toolless mounting of wings to hydrofoils of Figure 9. Figure 11 is bottom view of a plate with a mounted rotating lever of the universal system for toolless mounting of wings to hydrofoils of Figures 9-10. Figure 12 is top profile view of a hydrofoil with a universal system for toolless mounting of wings to hydrofoils, according to another embodiment of the invention. Figure 13 is detailed view of a portion of Figure 12 showing the universal system for toolless mounting of wings to hydrofoils, in unlocked position and prior to mounting to the wing. Figure 14 is exploded view of the universal system for toolless mounting of wings to hydrofoils of Figures 12-13. Figure 15 is partial view of the universal system for toolless mounting of wings to hydrofoils of Figures 12-14, showing the elongated holes for stud bolts. Figure 16 is top view of the universal system for toolless mounting of wings to hydrofoils of Figures 12-15, in locked position and without mounted lever. Figure 17 is top profile view of the universal system for toolless mounting of wings to hydrofoils of Figures 12-16, in locked position. EXAMPLES OF EMBODIMENT OF THE INVENTION

[0020] All examples described herein are given as non-limiting the scope of the invention variants.

[0021] The universal system for toolless mounting of wings to hydrofoils, according to the invention, and as shown in the figures, implements a detachable fixed mechanical connection, and comprises base 1, plate 4 with rotation hole 4C and one or more elongated through holes 4A for stud bolt 3 and rotating lever 5 having an eccentric body 5A, which is integrally or detachably connected to one end of the rotating lever 5. The elongated through holes 4A can be, for example, two, three, four or more. The plate 4 can be made of stainless steel or aluminum or plastic or other suitable material. The rotary eccentric body 5A is partially placed in the rotation hole 4C, and it is also located on the base 1 with the ability of rotation. The rotary eccentric body 5A is integrally or detachably connected to the rotating lever 5, which is fixed to the plate 4 or to the base 1, integrally or by one or more fastening means 6. In an integral connection, the rotary eccentric body 5A and the rotating lever 5 are monolithic body, made, for example, by casting, welding, milling, pressing, or by another known method. In a detachable connection, when fastening means 6 are used, they can be movable or fixed, and can be, for example, a shaft or a bolt. If they are shaft or bolt, they can be made of stainless steel or aluminum or plastic or carbon fibers or other suitable material. It is also possible for the rotating lever and the rotary eccentric body 5A to be connected by splines or by a geometric assembly.

[0022] The rotating lever 5 can be made of stainless steel or aluminum or plastic or carbon fiber or other suitable material. The rotary eccentric body 5A can be made of stainless steel or aluminum or plastic or carbon fiber or other suitable material. The base 1 can be made of stainless steel or aluminum or plastic or other suitable material that can withstand mechanical loads in radial and axial directions.

[0023] The rotary eccentric body 5A can rotate around an axis that is parallel or transverse to the plane of the plate 4, and in the transverse rotation variant, the rotation can be perpendicular or at an angle to the plate 4.

[0024] The plate 4 can be moved horizontally or vertically and horizontally (simultaneously or first horizontally and then vertically) relative to the base 1, between two end positions, respectively a first and a second position, in one position the plate 4 is configured for locking, and in the other it is configured for unlocking from the at least one stud bolt 3. The vertical movement can be parallel or at an angle to the plane of the wing, between a first and a second position when rotating the rotary eccentric body 5A, in the first position the plate is freely detachable from one or more stud bolts 3, for example two, three, four or more stud bolts 3, and in the second position it engages with the stud bolts 3. The stud bolts 3 serve as positioning elements for a hydrofoil wing, and fixing elements for the plate 4. The stud bolts 3 can have different sizes, consistent with the size of the wings that will be mounted using them. The elongated holes 4A for the passage of the stud bolts 3 can have a different shape, depending on the shape of the ends of the stud bolts 3 passing through them. The stud bolts have a locking element, for example a collar or at least one recess and / or at least one protrusion, to provide the ability of detachable engagement or clamping or pressing the described mechanism of the system for mounting wings to hydrofoils. This locking element can be concentric or eccentric, as long as it allows passage through the elongated holes 4A of the plate and locking in them. The elongated holes 4A of the plate are through and configured to receive the stud bolts 3 with corresponding shapes in one part, and have means for fixing the stud bolt in the other part. In order to be fixed, one end of each stud bolt 3 is processed in a corresponding manner and shape, and its other end is mounted through the base to the hydrofoil's fuselage in a manner known in mechanics, and they can form a detachable connection, for example by a threaded mechanical connection or in another way, or a non-detachable connection, for example by pressing, riveting, welding, soldering, inserting or in another way.

[0025] The rotary eccentric body 5A can simultaneously rotate in the rotation hole 4C of the plate 4 and in a seat in the base 1, maintaining at the same time its position therein due to frictional forces, or rotate in the rotation hole 4C of the plate 4, shifting its position therein, between locked position of the rotating lever 5, in which the plate 4 is fixed to the wing 1B, and unlocked position of the rotating lever 5, in which the plate 4 is freely detachable from the wing 1B.

[0026] The base 1 can be an adapter 1A for attaching a wing to a fuselage, having at least one through hole 7, configured to receive stud bolt 3 of a corresponding shape. The adapter 1A is placed under the plate 4 (between the plate 4 and the wing 1B), or it can be integrated into the wing itself or be part of it, its purpose being to improve the contact of the plate 4 with the wing 1B, since different wings may have different irregularities (shapes, curves) at the point of contact between them and the plate, and to protect the wing 1B from mechanical damage when mounting to the plate 4. The adapter 1A has holes that are sized so that the stud bolts 3 can pass freely through them. The adapter 1A can be made of rubber or plastic or other suitable material that does not leave marks when sliding and is able to absorb vibrations.

[0027] Alternatively, the base 1 can be part of a wing 1B, which can either be the front or rear wing of a hydrofoil.

[0028] It is possible to have both an adapter 1A and a part of a wing 1B, the adapter being placed between the wing 1B and the plate 4.

[0029] The universal system for toolless mounting of wings to hydrofoils can comprise a protective cover 8, detachably mounted to the base 1 and / or to the rotating lever 5. The protective cover 8 can be located above the plate 4, between the rotating lever 5 and the rotary eccentric body 5A, and have a shaped opening for the passage of the rotating lever 5, and / or of a fastening means 6, for example a shaft connecting the rotating lever 5 to the base 1. The protective cover 8 is intended to protect the mechanism of the system for mounting a wing to a hydrofoil from various contaminants such as penetration of other external bodies and contaminants (such as sand and pebbles), which may damage it or from mechanical impacts, which are almost inevitable in the process of using the watercraft (hydrofoil), and may damage it. It can also provide for the blocking of the rotating lever 5 and prevent its movement without the intervention of the operator (surfer). The protective cover 8 can be made of carbon fibers, metal, technical plastic or other type of material that is not degraded by water, and is resistant to mechanical impact and shocks. In one embodiment of the invention, shown in Figures 1-11, the rotary eccentric body 5A is a cylindrical element with a through hole, displaced in radial direction from the axis of symmetry of the rotary body in direction of the rotating lever 5, and it is parallel to the axis of the rotary body, and in the mounted position it is fixed on the lower side of the rotating lever 5. The eccentric body 5A is located partially in the seat in the base 1, which seat has a shape corresponding at least partially to the arc of the rotary eccentric body 5A. The rotating lever 5 together with the rotary eccentric body 5A are mounted so that they can rotate in direction in a plane perpendicular to the flat surface of the plate 4, and respectively around an axis that is transverse to the said plane. Fastening means 6 is located in the through hole of the rotary eccentric body 5A, which fastening means is a shaft with a length greater than the length of the through hole of the rotary eccentric body 5A. The two ends of the shaft protrude from the through hole of the rotary eccentric body 5A and they are hingedly placed in two lugs 2, formed on the plate 4 at two opposite sides of the rotation hole 4C, which is of an elongated shape. In the unlocked position of the rotating lever 5 and in the first position of the plate 4, the plate 4 is displaced by the rotary eccentric body 5A in vertical direction towards the base 1 and preferably horizontally towards one of the two ends of the base 1, and in the locked position of the rotating lever 5 and in the second position of the plate 4, the plate 4 is displaced by the rotary eccentric body 5A vertically away from the base 1 and preferably horizontally - towards the opposite end of the base 1.

[0030] In a lower part of the rotary eccentric body 5A, which contacts the base 1, a stop recess 12 can be formed, in which a stop protrusion 11 in the base 1, complementary to the shape of the stop recess, engages, to provide a stop for displacement in horizontal direction of the plate 4 relative to the base 1. In one embodiment of the invention, the stop protrusion 11 can be, for example, a rib located parallel to the axis of the rotary eccentric body 5A, and the stop recess 12 can be, for example, a longitudinal channel that has a complementary shape to the rib, the rib always being at least partially in contact with the channel. In this embodiment, in the unlocked position of the rotating lever 5, the rib is completely placed in the channel, and in the locked position of the rotating lever 5, the rib is partially placed in the channel. Alternatively, other shapes of the stop protrusion 11 are possible, such as, for example, a square, triangular or other shape, the shape of the stop recess 12 corresponding to the shape of the stop protrusion 11. With the presence of stop recesses and protrusions 12, 11, the plate 4 can be simultaneously displaced in both horizontal and vertical directions when unlocking or locking the rotating lever 5.

[0031] The rotating lever 5 has the function of exerting a compressive force on the surface of the wing, as well as moving the plate 4 in longitudinal direction, in which the stud bolts 3 are locked, in order to ensure locking of the mechanism. In order to implement the last two functions, it is necessary to first place the wing on the fuselage, with the stud bolts passing through the holes 7 of the wing. Then the plate 4 with the rotating lever 5 in unlocked position is placed on the fuselage, with the stud bolts 3 passing through the wide part of the elongated holes 4A. Then the plate 4 is pushed manually or by turning the rotating lever 5 into a second position, in which case the stud bolts are placed into that part of the elongated holes 4A, where the means for fixing the stud bolts 3 are located. At the same time as the rotating lever 5 is rotated, the rotary eccentric body 5A pulls the plate 4 up from the base 1, thus pressing the base 1 against the fuselage and locking the stud bolts in vertical direction. In order to unlock the mechanism, the rotating lever 5 is rotated in opposite direction (up). During this action, the following happens - the pressure decreases, and the rotating lever 5 by means of the rotary eccentric body 5A simultaneously rotates in the seat in the base 1, and moves the plate 4 so that the locked stud bolts 3 are released from the fixing means of the elongated holes 4A.

[0032] If there are no stop recesses and protrusions 12, 11, the use of the system for toolless mounting of wings to hydrofoils is done by first manually pulling the plate 4 in horizontal direction, and then shifting it vertically and locking it with the rotating lever 5. When manually moving the plate 4 in horizontal direction, if there is a protective cover 8, it can be attached to the plate, and there can be a hole for the rotating lever 5, allowing the horizontal movement of the plate 4 to occur simultaneously with the horizontal movement of the protective cover 8, thus the hole of the protective cover 8 is shifted in longitudinal direction relative to the rotating lever 5, which is placed in it. Thus, it is not necessary to remove the protective cover 8 to move the plate 4 horizontally.

[0033] It will be clear to the person skilled in the art that the structures shown in Figures 1 to 8, which lack stop recesses and protrusions 12, 11, can also be constructed with stop recesses and protrusions 12, 11.

[0034] In the lower part of the rotary eccentric body 5A, which contacts the base 1, at least one limiting recess 10 can be formed, in which at least one limiting protrusion 9 in the base 1, complementary to the shape of the limiting recess, engages, to provide a limitation for the displacement of the rotating lever 5 relative to the base 1 in direction of the plate parallel to the axis of the rotary eccentric body 5A. In one embodiment of the invention, the limiting protrusions 9 can be, for example, ribs, for example three, arranged perpendicular to the axis of the rotary eccentric body 5A, and the limiting recesses 10 are the same number as the limiting protrusions, and can be, for example, channels that are of a complementary shape to the ribs, the ribs being always at least partially in contact with the channels in order to prevent the rotating lever from being displaced sideways along the surface of the base 1, in a direction parallel to the axis of the rotary eccentric body 5A. Alternatively, other shapes of the limiting protrusions 9 are also possible, such as, for example, square, triangular or other shape, the shape of the limiting recesses 10 corresponds to the shape of the limiting protrusions 9.

[0035] In another embodiment of the invention, shown in Figures 12-17, the rotation opening 4C for the rotary body is elongated in two directions, the rotary eccentric body 5A being attached to the rotating lever 5. The rotating lever 5 together with the rotary eccentric body 5A can be rotated axially in a plane parallel to the flat surface of the plate 4, both clockwise and counterclockwise, the eccentric 5A being able to move between the two extensions of the rotation opening 4C for the rotary eccentric body 5A, and its placement in each of the two extensions pushes the plate 4 in horizontal direction forward or backward, and thus defines the unlocked and locked positions of the rotating lever 5, respectively. Through holes are formed at one end of the rotating lever 5 and in the rotary eccentric body 5A, in which through holes the fastening means 6 is located, which is a shaft, and the rotating lever 5 and the rotary eccentric body 5A rotate along its axis, the shaft 6 being located perpendicular to the flat surface of the plate 4, and is fixed against unintentional extraction from the through holes of the rotating lever 5 and the rotary eccentric body 5A by a fixing means.

[0036] It is possible for the shaft 6 to be fixed to the base 1 in a stationary manner, or with ability to rotate relative to the base 1.

[0037] The shaft can be connected by a threaded connection to the rotary eccentric body 5A, or alternatively may not have such a connection, as long as the rotation of the rotating lever 5 also allows rotation of the rotary eccentric body 5A in the base 1.

[0038] It is possible for the shaft 6 to rotate, together with the rotary eccentric body 5A and the rotating lever 5, relative to the base 1, for example in a hole in the base 1, or it is also possible for the shaft to be fixed to the base 1, and the rotary eccentric body 5A to rotate around it.

[0039] The means for fixing a stud bolt in the at least one elongated hole 4A of the plate 4 can be a constriction 4D for retaining a collar of a stud bolt 3, formed at one end along its extension. The collar of the stud bolts can be located at their free end, or at another place along the length of their part that protrudes above the wing. At the border of the constriction 4D, on its inner side, there can be at least one internal wedging means for the stud bolt, which is a spring-hinged part 4B. It is possible to have two spring-hinged parts 4B on both sides of the constriction. When the stud bolts 3 enter the elongated holes 4A of the plate 4, upon locking the rotating lever 5, the plate 4 is displaced relative to the base 1, wherein the stud bolts 3 are inserted, due to the pressure from the rotating lever 5, into the constriction 4D, and are locked in vertical direction, since the collars of the stud bolts have a larger diameter than the width of the constriction 4D. If there are two spring-hinged parts 4B, they also hold the stud bolts in horizontal direction, preventing their accidental movement, without pressure from the user by means of the rotating lever used to release them. This is achieved because the spring-hinged parts 4B protrude into the hole and limit its width in the part in which they are located, thus forming a region with a width smaller than the diameter of the stud bolts, through which the stud bolts can pass only by pressure exerted by a user through the rotating lever 5, which temporarily bends the spring-hinged parts 4B in order for the stud bolts 3 to pass.

[0040] In all embodiments of the invention, the constriction 4D can be beveled on the upper side in direction of the non-constricted part of the elongated hole 4A, and if there is a spring-hinged part 4B, this part can be beveled on the upper side in direction of the non-constricted part of the elongated hole 4A in which it is located, thus forming a wedge-shaped segment for accepting the stud bolt 3, the length of the part of the stud bolt 3 that protrudes above the wing 1B to the collar of the stud 3 is equal to the height from the bottom of the adapter 1A, if present in the configuration, to the top of the constricted end of the elongated hole 4A (if there is no adapter, it is equal to the height of the constricted end of the elongated hole 4A), so that the assembly between the head of the stud bolt 3, the plate 4, the adapter 1A if present in the configuration, the wing 1B and the fuselage 1 is tightly locked. In a position where the stud bolt 3 is located in the constricted end of the elongated hole 4A, the collar of the stud bolt 3 is located above the plate 4 and exerts pressure in direction of the wing 1B, and closes a direct gap between the plate 4 and the wing 1B, or a gap between the plate 4 and the adapter 1A, or a gap between the wing 1B and the adapter 1A. In this way, the plate 4 is pressed and fixed to the wing 1B.

[0041] In one embodiment of the invention, it is possible for the stud bolts 3 to be more inserted into the fuselage, and the operator may have to slightly press the plate 4 before rotating the rotating lever 5, thereby shifting it in horizontal direction and locking the stud bolts.Exemplary use of the invention

[0042] When using the universal system for toolless mounting of wings to a hydrofoil's fuselage, at least one stud bolt 3 is mounted on the upper side of the fuselage 1, which protrudes partially above it, at its free end the at least one stud bolt 3 has at least one recess and / or protrusion for detachable attachment to the plate 4 by means of horizontal displacement of the plate 4 relative to the at least one stud bolt 3, through the extension in its respective elongated hole 4A, between a fixed position of the at least one stud bolt 3, in which the recess and / or protrusion of the stud bolt 3 is placed in the means for fixing the stud bolt in the respective elongated hole 4A, and a free position of the at least one stud bolt 3, in which the recess and / or protrusion of the stud bolt 3 is placed outside the constriction 4D of the respective elongated hole 4A. The displacement between the two positions of the stud bolt 3 is carried out by rotating the rotary body in the rotation hole 4C, which is transformed into a horizontal displacement of the plate 4 relative to the wing 1B between the fixed and free positions of the stud bolt 3.

[0043] In the embodiment of the invention shown in Figures 1-11, in order to mount the wing 1B to the fuselage 1, the wing 1B is put onto the stud bolts 3, which are mounted on the fuselage 1, after which the system for toolless mounting of wings to hydrofoils, the subject of the invention, is also put onto the stud bolts 3 and onto the wing. In the initial position, the lever 5 is raised and unlocked. In order to lock, firstly the plate 4 is displaced in horizontal direction manually, or as a result of contact between a stop recess 12 in the rotary eccentric body 5A and a stop protrusion in the base 1, during which contact the rotation of the lever 5 in downward direction, transverse to the plate 4, causes the rotary eccentric body 5A to rotate, and by abutting on the base 1, to be displaced relative to it, and thus to displace the plate 4 forward or backward. Thus, when locked, the stud bolts 3 move into the elongated holes 4A in direction of the constrictions 4D, and exert downward pressure on the plate 4, in direction of the wing 1B, which fixes the wing 1B to the fuselage 1. The rotation of the rotary eccentric body 5A, which occurs along the axis of the shaft 6 in the rotation hole 4C of the plate 4, and in the seat of the base 1, pushes the plate 4 in vertical direction and thus moves the plate 4 away from the wing 1B, which pushes the wing 1B towards the fuselage 1 and fixes it to it. In this position, the lever 5 is locked. To unlock it, the lever 5 is rotated in the opposite direction, which causes the eccentric to release the pressure on the plate 4, and the plate 4 is pulled manually or by means of the stop recess 12 and the stop protrusion 11 to the initial position and the stud bolts 3 are released from the constrictions 4D and the system for toolless mounting of wings to hydrofoils can be removed from the wing 1B, and the wing can be removed from the fuselage 1.

[0044] In the embodiment of the invention shown in Figures 12-17, in order to mount the wing 1B to the fuselage 1, the wing 1B is put onto the stud bolts 3, which are mounted on the fuselage 1, after which the system for toolless mounting of wings to hydrofoils, the subject of the invention, is put onto the stud bolts 3 and onto the wing. In the initial position, the lever 5 is in unlocked position, the rotary eccentric body 5A being placed in a longitudinal part of the rotation hole 4C. When the lever 5 is rotated in a parallel direction to the surface of the plate 4, the rotary eccentric body 5A is rotated and displaced into a second longitudinal part of the rotation hole 4C, thus pushing the plate 4, and the stud bolts 3 are moved into the elongated holes 4A in direction of the constrictions 4D, and exert downward pressure on the plate 4, in direction of the wing 1B, which fixes the wing 1B to the fuselage 1. To increase the pressure from the stud bolts 3 to the plate 4, respectively to the wing 1B and to the fuselage 1, the constrictions 4D can be beveled on the upper side in direction of the non-constricted part of the elongated hole 4A, and the stud bolts 3 can be inserted so far into the fuselage that when the stud bolts 3 are moved along the beveled part of the constrictions 4D, the pressure on the plate 4 to be large enough for maximum tight closing of the gaps between the plate 4, the wing 1B, and the fuselage 1. In this position, the lever 5 is locked. In order to unlock it, the lever 5 is rotated in the opposite direction, which moves the eccentric back into the first longitudinal part of the rotation hole 4C, and the plate 4 is displaced to the initial position and the stud bolts 3 are released from the constrictions 4D and the system for toolless mounting of wings to hydrofoils can be removed from the wing 1B, and the wing can be removed from the fuselage 1.

[0045] The reference numbers of the technical features are included in the claims solely for the purpose of increasing the comprehensibility of the claims and, therefore, these reference numbers have no limiting effect on the interpretation of the elements designated by these reference numbers.

Examples

Embodiment Construction

[0020]All examples described herein are given as non-limiting the scope of the invention variants.

[0021]The universal system for toolless mounting of wings to hydrofoils, according to the invention, and as shown in the figures, implements a detachable fixed mechanical connection, and comprises base 1, plate 4 with rotation hole 4C and one or more elongated through holes 4A for stud bolt 3 and rotating lever 5 having an eccentric body 5A, which is integrally or detachably connected to one end of the rotating lever 5. The elongated through holes 4A can be, for example, two, three, four or more. The plate 4 can be made of stainless steel or aluminum or plastic or other suitable material. The rotary eccentric body 5A is partially placed in the rotation hole 4C, and it is also located on the base 1 with the ability of rotation. The rotary eccentric body 5A is integrally or detachably connected to the rotating lever 5, which is fixed to the plate 4 or to the base 1, integrally or by one o...

TECHNICAL FIELD

[0001] The present invention relates to the field of water sports equipment, more particularly hydrofoils, and more particularly the invention relates to a system for mounting wings to hydrofoils.PRIOR ART

[0002] Hydrofoil is a means of moving in water, which includes the following main parts: a surfboard - an above-water platform, under which a hydrofoil is mounted - an underwater part. In turn, the underwater part is a set of hydrofoils - usually stabilizing and supporting, but not only, located on an underwater arrow-shaped body - a fuselage, which is mounted to the above-water platform, by means of a mast with a streamlined profile. The mast connects the above-water platform to the fuselage. There are known variants in which the hydrofoils are mounted directly to the mast. Hydrofoils can be of different types depending on the method of propulsion - for example, wing foil, kite foil, windsurfing foil, surf foil, pump foil and others. When the propulsion is by electric motor, the hydrofoil becomes electric or e-foil. Its design is far more complex and comprises additional modules such as: power source (most often rechargeable battery), charge-discharge control module for the power source, electric motor, motor control module, sensor unit, main control unit that takes care of synchronizing the operation of the individual units, remote control, and others.

[0003] Given the variety of hydrofoil means for movement in water, it has also become necessary to develop different types and sizes of underwater wings for mounting on the underwater part. In practice, the wings have to carry the entire weight of the above-water part, which comprises the operator (surfer), so in some embodiments the wings have larger overall dimensions. Another reason for having different wings is that they have different hydrodynamic resistance and characteristics when moving in the water. Some wings are being designated for use by "beginner" surfers and others for "advanced" surfers. Various solutions are known for mounting wings to the fuselage. One such is by using a bolted mechanical connection, as described in US2015225040A1, for example in Fig. 8 and Fig. 9. The wing is mounted to the mast by means of an additional plate through a rod and detachable fastening means. This design is complex and involves a large number of structural elements that must be mounted and dismantled in order to replace the wing. Also, since these structural elements are detachable from each other, it is possible that some of them may be lost during disassembly. The many structural elements require the user of the watercraft to have some knowledge of mechanics, as well as to have a set of tools to assemble or disassemble the wing to / from the fuselage in order to store it for subsequent use or to replace it with another.

[0004] Another known solution for mounting a wing is to mount it to the mast, for example the fuselage being part of it, as described in US2015314837A1, for example in Fig. 1 and Fig. 2. For this purpose, the fuselage comprises a central segment in which the wings are mounted with the ability of dismantling (disassembly), by means of assembly and locking means in the longitudinal direction of the central segment. The wing - the so-called "first segment" and the central segment are connected end to end by the assembly means, which comprise a pair formed by a male connector and a female connector, interacting by a specific blocking. A disadvantage of this method of mounting is that the wing must have a strictly defined design that allows it to be mounted to the central segment by means of various assembly parts, a rod with the ability of locking and additional mechanical details. This design is extremely complicated and limits the wing to be used only on a specific hydrofoil device with a specific design for mounting the wing to the fuselage.

[0005] Another solution for mounting a wing without the use of specialized tools is known, disclosed in WO2024233545A1, for example in Fig. 3 and Fig. 4. It comprises a mast, a hydrofoil system with integrated wings and front and rear fuselages, having tapered sections, a flange having an internal passage, sized to encompass and retain one of the tapered sections, and a pulling mechanism configured to pull the integrated wing and fuselage so that the contacting tapered sections are wedged into assembly. The pulling mechanism can be manually operated lever that applies force that pulls first part of the integrated wing and fuselage, and second part of the integrated rear wing and fuselage towards each other. The relative movement transmitted to the first part of the integrated wing and fuselage, and the second part of the integrated rear wing and fuselage by the actuator may be adjustable. A disadvantage of this solution for mounting a wing is the wedging of the two mechanical parts against each other in a flange - this creates friction forces that can damage the two wedging and contacting sections, and also lead to the destruction of the flange due to the forces that arise, namely the two sections tend to expand it as a result of the pulling force of the mechanism. The fact that the latter has the ability to adjust the pulling force (by the surfer) provides the operator (performing the assembly action) the opportunity to overtighten (to pull with a force above the permissible one) when assembling and engaging the two sections, and thus to cause irreparable or costly damage to one or more of the parts involved in the assembly (the mechanical connection). This method of mounting, as well as the fact that the wings are an integral part of the fuselage, limits its application to exactly the specific solution and is not applicable to other watercrafts of this type. The described design does not imply its use in electric hydrofoils, in which the electrical cables providing energy for the propulsion means (electric motor, for example) usually pass through the tubular body - the mast. Due to the disadvantages listed above, the design is not suitable for repeated use over a long period of time, because wedging and friction during use can lead to a shortening of the service life of the engaged mechanical parts.SUMMARY OF THE INVENTION

[0006] The object of the present invention is to create an alternative universal system for toolless mounting of wings to a hydrofoil, which is simple and easy, and also suitable for electric hydrofoils.

[0007] This object is achieved by creating a universal system for toolless mounting of wings to hydrofoils, comprising a base, a plate with a rotation hole and at least one elongated through hole for stud bolt and a rotating lever with an eccentric body, which is integrally or detachably connected to one end of the rotating lever, and the rotary eccentric body is partially placed in the rotation hole, the rotary eccentric body is also located on the base with the ability of rotation. The rotary eccentric body is configured to rotate around an axis that is parallel or transverse to the plane of the plate, wherein the lever is fixed to the plate or to the base, integrally or by at least one fastening means, and the plate is configured with ability to move horizontally or vertically and horizontally relative to the base between two end positions, respectively a first and a second position, in one position the plate is configured for locking, and in the other it is configured for unlocking from at least one stud bolt, between first and second positions when the rotary eccentric body is rotated. In the first position, the plate is freely detachable from the at least one stud bolt, and in the second position, it engages with the at least one stud bolt. When the rotating lever is rotated, the rotary eccentric body is configured with ability to simultaneously rotate in a seat in the base and maintain its position therein, or with ability to simultaneously rotate in the plate's rotation hole and displace its position therein, between a locked position of the rotating lever, in which the plate is fixed to the wing, and an unlocked position of the rotating lever, in which the plate is freely detachable from the wing.

[0008] The at least one elongated hole of the plate is configured to receive a stud bolt of corresponding shape in one part thereof, and has a means for fixing a stud bolt in the other part thereof.

[0009] In one embodiment of the invention, the base is an adapter for attaching a wing to a fuselage, having at least one through hole configured to receive a stud bolt of corresponding shape.

[0010] In an alternative embodiment of the invention, the base is part of a wing.

[0011] In a preferred embodiment of the invention, the system for toolless mounting of wings to hydrofoils comprises a protective cover detachably mounted to the base and / or to the rotating lever.

[0012] In one embodiment of the invention, the rotary eccentric body is a cylindrical element with a through hole, displaced in radial direction from the axis of symmetry of the rotary eccentric body in direction of the rotating lever, and parallel to the axis of the rotary eccentric body, and it is fixed on the lower side in the mounted position of the rotating lever, and it is located partially in the seat in the base, which seat has a shape corresponding at least partially to the arc of the rotary eccentric body. The rotating lever together with the rotary eccentric body are configured to be rotatable in direction in a plane perpendicular to the flat surface of the plate. A fastening means is located in the through hole of the rotary eccentric body, which fastening means is a shaft with a length greater than the length of the through hole of the rotary eccentric body, and both ends of the shaft protrude from the through hole of the rotary eccentric body and are hingedly arranged in respective lugs formed on the plate at two opposite sides of the rotation hole for partial placement of the rotary eccentric body, which rotation hole is of elongated shape. In the unlocked position of the rotating lever and in the first position of the plate, the plate is displaced from the rotary eccentric body in direction of the base, and in the locked position of the rotating lever and in the second position of the plate, the plate is displaced from the rotary eccentric body vertically further away from the base relative to the unlocked position of the rotating lever and the first position of the plate. Preferably, in a lower part of the rotary eccentric body, which contacts the base, a stop recess 12 is formed, in which a stop protrusion 11 in the base, complementary to the shape of the stop recess, engages, to provide a stop for displacement in horizontal direction of the plate relative to the base. Preferably, in a lower part of the rotary eccentric body, which contacts the base, at least one limiting recess is formed, in which at least one limiting protrusion in the base, complementary to shape of the limiting recess, engages, to provide a limit for displacement of the rotating lever relative to the base in direction of the plate parallel to the axis of the rotary eccentric body.

[0013] In another embodiment of the invention, the rotation hole for the rotary body is elongated in two directions, the rotary eccentric body being attached to the rotating lever. The rotating lever together with the rotary eccentric body are configured to be axially rotatable in a plane parallel to the flat surface of the plate, the eccentric being configured to be movable between the two extensions of the rotation hole for the rotary eccentric body, respectively between the unlocked and locked positions of the rotating lever. Through holes are formed at one end of the rotating lever and in the eccentric, in which through holes the fastening means is located, which is a shaft, along the axis of which the rotating lever and the eccentric rotate, the shaft is positioned perpendicular to the flat surface of the plate, and it is fixed against unintentional extraction from the through holes of the rotating lever and the rotary eccentric body by a fixing means.

[0014] In an alternative embodiment of the invention, the means for fixing a stud bolt in the at least one elongated hole of the plate is a constriction for retaining collar of a stud bolt, formed at one end along its extension.

[0015] In one embodiment of the invention, at the border of the constriction, on its inner side, there is at least one internal wedging means for stud bolt, which is a spring-hinged part.

[0016] In one embodiment of the invention, the spring-hinged part is beveled on the upper side in direction of the non-constricted part of the elongated hole in which it is located, the length of the part of the stud bolt that protrudes above the base to the collar of the stud bolt is equal to the height of the constricted end of the elongated hole. In a position in which the stud bolt is located in the constricted end of the elongated hole, the collar of the stud bolt is located above the plate and exerts pressure in direction of the wing to close the gap between the plate and the wing. If there are spring-hinged parts, then they can be beveled on the upper side in order to lock the stud bolts and to exert pressure from the plate to the wing.

[0017] The universal system for toolless mounting of wings to hydrofoils, according to the invention, is a part of a hydrofoil, also comprising a fuselage with a mounted wing, wherein at least one stud bolt is mounted on the upper side of the fuselage, which protrudes partially above it, at its free end the at least one stud bolt has at least one recess and / or protrusion for detachable attachment to the plate by means of horizontal displacement of the plate relative to the at least one stud bolt, by means of the extension of its respective elongated hole, between a fixed position of the at least one stud bolt, in which the recess and / or protrusion of the stud bolt is placed in the means for fixing the stud bolt in the respective elongated hole, and a free position of the at least one stud bolt, in which the recess and / or protrusion of the stud bolt is placed outside the constriction of the respective elongated hole, wherein the rotation of the rotary body in the rotation hole is transformed into a horizontal displacement of the plate relative to the wing between the fixed and free positions of the stud bolt.

[0018] The described additional universal system for mounting wings to hydrofoils has the following advantages over all alternative solutions known to date: the proposed system allows its application on almost all existing variants of standard wing-to-fuselage attachment with screws; it eliminates the use of screws and tools, thus greatly improving the use of the product; the difficulty and time of assembly is reduced by eliminating the insertion of screws and the use of tools for their tightening and loosening; the possibility of errors such as using the wrong size screws, the wrong tool, insufficient tightening or overtightening of the screws is avoided, which errors can lead to wing or fuselage breakage, loss of the wing, increased risk of hydrofoil instability, falls and injuries; it is suitable for electric hydrofoils; it has universal application for different wing attachment options with screws from different manufacturers, and instead of standard wing screws, stud bolts with locking element, such as collar, are screwed into the fuselage to provide the ability to engage or tighten or press the described mechanism of the wing mounting system to hydrofoils. BRIEF DESCRIPTION OF THE ATTACHED FIGURES

[0019] Further in the description, the universal system for toolless mounting of wings to hydrofoils, the object of the invention, is explained by preferred embodiments, given as non-limiting the scope examples of the invention, with reference to the attached figures, where: Figure 1 is top profile view of a hydrofoil with universal system for toolless mounting of wings to hydrofoils, according to one embodiment of the invention. Figure 2 is detailed view of a portion of Figure 1 showing the universal system for toolless mounting of wings to hydrofoils, with the direction of movement of the lever and the direction of sliding of the plate shown. Figure 3 shows the universal system for toolless mounting of wings to hydrofoils of Figures 1 and 2, in locked state. Figure 4 is partial view of the universal system for toolless mounting of wings to hydrofoils of Figures 1-3, in unlocked state. Figure 5 is partial view of the universal system for toolless mounting of wings to hydrofoils of Figures 1-4, in locked state. Figure 6 is exploded view of the universal system for toolless mounting of wings to hydrofoils of Figures 1-5. Figure 7 is cross-sectional view of the universal system for toolless mounting of wings to hydrofoils of Figures 1-6, in unlocked state. Figure 8 is cross-sectional view of the universal system for toolless mounting of wings to hydrofoils of Figures 1-7, in locked state. Figure 9 is cross-section of one embodiment of the universal system for toolless mounting of wings to hydrofoils, in locked state, and with a rotating eccentric body having a stop recess that contacts a stop protrusion in the base 1. Figure 10 is top view of the adapter of the universal system for toolless mounting of wings to hydrofoils of Figure 9. Figure 11 is bottom view of a plate with a mounted rotating lever of the universal system for toolless mounting of wings to hydrofoils of Figures 9-10. Figure 12 is top profile view of a hydrofoil with a universal system for toolless mounting of wings to hydrofoils, according to another embodiment of the invention. Figure 13 is detailed view of a portion of Figure 12 showing the universal system for toolless mounting of wings to hydrofoils, in unlocked position and prior to mounting to the wing. Figure 14 is exploded view of the universal system for toolless mounting of wings to hydrofoils of Figures 12-13. Figure 15 is partial view of the universal system for toolless mounting of wings to hydrofoils of Figures 12-14, showing the elongated holes for stud bolts. Figure 16 is top view of the universal system for toolless mounting of wings to hydrofoils of Figures 12-15, in locked position and without mounted lever. Figure 17 is top profile view of the universal system for toolless mounting of wings to hydrofoils of Figures 12-16, in locked position. EXAMPLES OF EMBODIMENT OF THE INVENTION

[0020] All examples described herein are given as non-limiting the scope of the invention variants.

[0021] The universal system for toolless mounting of wings to hydrofoils, according to the invention, and as shown in the figures, implements a detachable fixed mechanical connection, and comprises base 1, plate 4 with rotation hole 4C and one or more elongated through holes 4A for stud bolt 3 and rotating lever 5 having an eccentric body 5A, which is integrally or detachably connected to one end of the rotating lever 5. The elongated through holes 4A can be, for example, two, three, four or more. The plate 4 can be made of stainless steel or aluminum or plastic or other suitable material. The rotary eccentric body 5A is partially placed in the rotation hole 4C, and it is also located on the base 1 with the ability of rotation. The rotary eccentric body 5A is integrally or detachably connected to the rotating lever 5, which is fixed to the plate 4 or to the base 1, integrally or by one or more fastening means 6. In an integral connection, the rotary eccentric body 5A and the rotating lever 5 are monolithic body, made, for example, by casting, welding, milling, pressing, or by another known method. In a detachable connection, when fastening means 6 are used, they can be movable or fixed, and can be, for example, a shaft or a bolt. If they are shaft or bolt, they can be made of stainless steel or aluminum or plastic or carbon fibers or other suitable material. It is also possible for the rotating lever and the rotary eccentric body 5A to be connected by splines or by a geometric assembly.

[0022] The rotating lever 5 can be made of stainless steel or aluminum or plastic or carbon fiber or other suitable material. The rotary eccentric body 5A can be made of stainless steel or aluminum or plastic or carbon fiber or other suitable material. The base 1 can be made of stainless steel or aluminum or plastic or other suitable material that can withstand mechanical loads in radial and axial directions.

[0023] The rotary eccentric body 5A can rotate around an axis that is parallel or transverse to the plane of the plate 4, and in the transverse rotation variant, the rotation can be perpendicular or at an angle to the plate 4.

[0024] The plate 4 can be moved horizontally or vertically and horizontally (simultaneously or first horizontally and then vertically) relative to the base 1, between two end positions, respectively a first and a second position, in one position the plate 4 is configured for locking, and in the other it is configured for unlocking from the at least one stud bolt 3. The vertical movement can be parallel or at an angle to the plane of the wing, between a first and a second position when rotating the rotary eccentric body 5A, in the first position the plate is freely detachable from one or more stud bolts 3, for example two, three, four or more stud bolts 3, and in the second position it engages with the stud bolts 3. The stud bolts 3 serve as positioning elements for a hydrofoil wing, and fixing elements for the plate 4. The stud bolts 3 can have different sizes, consistent with the size of the wings that will be mounted using them. The elongated holes 4A for the passage of the stud bolts 3 can have a different shape, depending on the shape of the ends of the stud bolts 3 passing through them. The stud bolts have a locking element, for example a collar or at least one recess and / or at least one protrusion, to provide the ability of detachable engagement or clamping or pressing the described mechanism of the system for mounting wings to hydrofoils. This locking element can be concentric or eccentric, as long as it allows passage through the elongated holes 4A of the plate and locking in them. The elongated holes 4A of the plate are through and configured to receive the stud bolts 3 with corresponding shapes in one part, and have means for fixing the stud bolt in the other part. In order to be fixed, one end of each stud bolt 3 is processed in a corresponding manner and shape, and its other end is mounted through the base to the hydrofoil's fuselage in a manner known in mechanics, and they can form a detachable connection, for example by a threaded mechanical connection or in another way, or a non-detachable connection, for example by pressing, riveting, welding, soldering, inserting or in another way.

[0025] The rotary eccentric body 5A can simultaneously rotate in the rotation hole 4C of the plate 4 and in a seat in the base 1, maintaining at the same time its position therein due to frictional forces, or rotate in the rotation hole 4C of the plate 4, shifting its position therein, between locked position of the rotating lever 5, in which the plate 4 is fixed to the wing 1B, and unlocked position of the rotating lever 5, in which the plate 4 is freely detachable from the wing 1B.

[0026] The base 1 can be an adapter 1A for attaching a wing to a fuselage, having at least one through hole 7, configured to receive stud bolt 3 of a corresponding shape. The adapter 1A is placed under the plate 4 (between the plate 4 and the wing 1B), or it can be integrated into the wing itself or be part of it, its purpose being to improve the contact of the plate 4 with the wing 1B, since different wings may have different irregularities (shapes, curves) at the point of contact between them and the plate, and to protect the wing 1B from mechanical damage when mounting to the plate 4. The adapter 1A has holes that are sized so that the stud bolts 3 can pass freely through them. The adapter 1A can be made of rubber or plastic or other suitable material that does not leave marks when sliding and is able to absorb vibrations.

[0027] Alternatively, the base 1 can be part of a wing 1B, which can either be the front or rear wing of a hydrofoil.

[0028] It is possible to have both an adapter 1A and a part of a wing 1B, the adapter being placed between the wing 1B and the plate 4.

[0029] The universal system for toolless mounting of wings to hydrofoils can comprise a protective cover 8, detachably mounted to the base 1 and / or to the rotating lever 5. The protective cover 8 can be located above the plate 4, between the rotating lever 5 and the rotary eccentric body 5A, and have a shaped opening for the passage of the rotating lever 5, and / or of a fastening means 6, for example a shaft connecting the rotating lever 5 to the base 1. The protective cover 8 is intended to protect the mechanism of the system for mounting a wing to a hydrofoil from various contaminants such as penetration of other external bodies and contaminants (such as sand and pebbles), which may damage it or from mechanical impacts, which are almost inevitable in the process of using the watercraft (hydrofoil), and may damage it. It can also provide for the blocking of the rotating lever 5 and prevent its movement without the intervention of the operator (surfer). The protective cover 8 can be made of carbon fibers, metal, technical plastic or other type of material that is not degraded by water, and is resistant to mechanical impact and shocks. In one embodiment of the invention, shown in Figures 1-11, the rotary eccentric body 5A is a cylindrical element with a through hole, displaced in radial direction from the axis of symmetry of the rotary body in direction of the rotating lever 5, and it is parallel to the axis of the rotary body, and in the mounted position it is fixed on the lower side of the rotating lever 5. The eccentric body 5A is located partially in the seat in the base 1, which seat has a shape corresponding at least partially to the arc of the rotary eccentric body 5A. The rotating lever 5 together with the rotary eccentric body 5A are mounted so that they can rotate in direction in a plane perpendicular to the flat surface of the plate 4, and respectively around an axis that is transverse to the said plane. Fastening means 6 is located in the through hole of the rotary eccentric body 5A, which fastening means is a shaft with a length greater than the length of the through hole of the rotary eccentric body 5A. The two ends of the shaft protrude from the through hole of the rotary eccentric body 5A and they are hingedly placed in two lugs 2, formed on the plate 4 at two opposite sides of the rotation hole 4C, which is of an elongated shape. In the unlocked position of the rotating lever 5 and in the first position of the plate 4, the plate 4 is displaced by the rotary eccentric body 5A in vertical direction towards the base 1 and preferably horizontally towards one of the two ends of the base 1, and in the locked position of the rotating lever 5 and in the second position of the plate 4, the plate 4 is displaced by the rotary eccentric body 5A vertically away from the base 1 and preferably horizontally - towards the opposite end of the base 1.

[0030] In a lower part of the rotary eccentric body 5A, which contacts the base 1, a stop recess 12 can be formed, in which a stop protrusion 11 in the base 1, complementary to the shape of the stop recess, engages, to provide a stop for displacement in horizontal direction of the plate 4 relative to the base 1. In one embodiment of the invention, the stop protrusion 11 can be, for example, a rib located parallel to the axis of the rotary eccentric body 5A, and the stop recess 12 can be, for example, a longitudinal channel that has a complementary shape to the rib, the rib always being at least partially in contact with the channel. In this embodiment, in the unlocked position of the rotating lever 5, the rib is completely placed in the channel, and in the locked position of the rotating lever 5, the rib is partially placed in the channel. Alternatively, other shapes of the stop protrusion 11 are possible, such as, for example, a square, triangular or other shape, the shape of the stop recess 12 corresponding to the shape of the stop protrusion 11. With the presence of stop recesses and protrusions 12, 11, the plate 4 can be simultaneously displaced in both horizontal and vertical directions when unlocking or locking the rotating lever 5.

[0031] The rotating lever 5 has the function of exerting a compressive force on the surface of the wing, as well as moving the plate 4 in longitudinal direction, in which the stud bolts 3 are locked, in order to ensure locking of the mechanism. In order to implement the last two functions, it is necessary to first place the wing on the fuselage, with the stud bolts passing through the holes 7 of the wing. Then the plate 4 with the rotating lever 5 in unlocked position is placed on the fuselage, with the stud bolts 3 passing through the wide part of the elongated holes 4A. Then the plate 4 is pushed manually or by turning the rotating lever 5 into a second position, in which case the stud bolts are placed into that part of the elongated holes 4A, where the means for fixing the stud bolts 3 are located. At the same time as the rotating lever 5 is rotated, the rotary eccentric body 5A pulls the plate 4 up from the base 1, thus pressing the base 1 against the fuselage and locking the stud bolts in vertical direction. In order to unlock the mechanism, the rotating lever 5 is rotated in opposite direction (up). During this action, the following happens - the pressure decreases, and the rotating lever 5 by means of the rotary eccentric body 5A simultaneously rotates in the seat in the base 1, and moves the plate 4 so that the locked stud bolts 3 are released from the fixing means of the elongated holes 4A.

[0032] If there are no stop recesses and protrusions 12, 11, the use of the system for toolless mounting of wings to hydrofoils is done by first manually pulling the plate 4 in horizontal direction, and then shifting it vertically and locking it with the rotating lever 5. When manually moving the plate 4 in horizontal direction, if there is a protective cover 8, it can be attached to the plate, and there can be a hole for the rotating lever 5, allowing the horizontal movement of the plate 4 to occur simultaneously with the horizontal movement of the protective cover 8, thus the hole of the protective cover 8 is shifted in longitudinal direction relative to the rotating lever 5, which is placed in it. Thus, it is not necessary to remove the protective cover 8 to move the plate 4 horizontally.

[0033] It will be clear to the person skilled in the art that the structures shown in Figures 1 to 8, which lack stop recesses and protrusions 12, 11, can also be constructed with stop recesses and protrusions 12, 11.

[0034] In the lower part of the rotary eccentric body 5A, which contacts the base 1, at least one limiting recess 10 can be formed, in which at least one limiting protrusion 9 in the base 1, complementary to the shape of the limiting recess, engages, to provide a limitation for the displacement of the rotating lever 5 relative to the base 1 in direction of the plate parallel to the axis of the rotary eccentric body 5A. In one embodiment of the invention, the limiting protrusions 9 can be, for example, ribs, for example three, arranged perpendicular to the axis of the rotary eccentric body 5A, and the limiting recesses 10 are the same number as the limiting protrusions, and can be, for example, channels that are of a complementary shape to the ribs, the ribs being always at least partially in contact with the channels in order to prevent the rotating lever from being displaced sideways along the surface of the base 1, in a direction parallel to the axis of the rotary eccentric body 5A. Alternatively, other shapes of the limiting protrusions 9 are also possible, such as, for example, square, triangular or other shape, the shape of the limiting recesses 10 corresponds to the shape of the limiting protrusions 9.

[0035] In another embodiment of the invention, shown in Figures 12-17, the rotation opening 4C for the rotary body is elongated in two directions, the rotary eccentric body 5A being attached to the rotating lever 5. The rotating lever 5 together with the rotary eccentric body 5A can be rotated axially in a plane parallel to the flat surface of the plate 4, both clockwise and counterclockwise, the eccentric 5A being able to move between the two extensions of the rotation opening 4C for the rotary eccentric body 5A, and its placement in each of the two extensions pushes the plate 4 in horizontal direction forward or backward, and thus defines the unlocked and locked positions of the rotating lever 5, respectively. Through holes are formed at one end of the rotating lever 5 and in the rotary eccentric body 5A, in which through holes the fastening means 6 is located, which is a shaft, and the rotating lever 5 and the rotary eccentric body 5A rotate along its axis, the shaft 6 being located perpendicular to the flat surface of the plate 4, and is fixed against unintentional extraction from the through holes of the rotating lever 5 and the rotary eccentric body 5A by a fixing means.

[0036] It is possible for the shaft 6 to be fixed to the base 1 in a stationary manner, or with ability to rotate relative to the base 1.

[0037] The shaft can be connected by a threaded connection to the rotary eccentric body 5A, or alternatively may not have such a connection, as long as the rotation of the rotating lever 5 also allows rotation of the rotary eccentric body 5A in the base 1.

[0038] It is possible for the shaft 6 to rotate, together with the rotary eccentric body 5A and the rotating lever 5, relative to the base 1, for example in a hole in the base 1, or it is also possible for the shaft to be fixed to the base 1, and the rotary eccentric body 5A to rotate around it.

[0039] The means for fixing a stud bolt in the at least one elongated hole 4A of the plate 4 can be a constriction 4D for retaining a collar of a stud bolt 3, formed at one end along its extension. The collar of the stud bolts can be located at their free end, or at another place along the length of their part that protrudes above the wing. At the border of the constriction 4D, on its inner side, there can be at least one internal wedging means for the stud bolt, which is a spring-hinged part 4B. It is possible to have two spring-hinged parts 4B on both sides of the constriction. When the stud bolts 3 enter the elongated holes 4A of the plate 4, upon locking the rotating lever 5, the plate 4 is displaced relative to the base 1, wherein the stud bolts 3 are inserted, due to the pressure from the rotating lever 5, into the constriction 4D, and are locked in vertical direction, since the collars of the stud bolts have a larger diameter than the width of the constriction 4D. If there are two spring-hinged parts 4B, they also hold the stud bolts in horizontal direction, preventing their accidental movement, without pressure from the user by means of the rotating lever used to release them. This is achieved because the spring-hinged parts 4B protrude into the hole and limit its width in the part in which they are located, thus forming a region with a width smaller than the diameter of the stud bolts, through which the stud bolts can pass only by pressure exerted by a user through the rotating lever 5, which temporarily bends the spring-hinged parts 4B in order for the stud bolts 3 to pass.

[0040] In all embodiments of the invention, the constriction 4D can be beveled on the upper side in direction of the non-constricted part of the elongated hole 4A, and if there is a spring-hinged part 4B, this part can be beveled on the upper side in direction of the non-constricted part of the elongated hole 4A in which it is located, thus forming a wedge-shaped segment for accepting the stud bolt 3, the length of the part of the stud bolt 3 that protrudes above the wing 1B to the collar of the stud 3 is equal to the height from the bottom of the adapter 1A, if present in the configuration, to the top of the constricted end of the elongated hole 4A (if there is no adapter, it is equal to the height of the constricted end of the elongated hole 4A), so that the assembly between the head of the stud bolt 3, the plate 4, the adapter 1A if present in the configuration, the wing 1B and the fuselage 1 is tightly locked. In a position where the stud bolt 3 is located in the constricted end of the elongated hole 4A, the collar of the stud bolt 3 is located above the plate 4 and exerts pressure in direction of the wing 1B, and closes a direct gap between the plate 4 and the wing 1B, or a gap between the plate 4 and the adapter 1A, or a gap between the wing 1B and the adapter 1A. In this way, the plate 4 is pressed and fixed to the wing 1B.

[0041] In one embodiment of the invention, it is possible for the stud bolts 3 to be more inserted into the fuselage, and the operator may have to slightly press the plate 4 before rotating the rotating lever 5, thereby shifting it in horizontal direction and locking the stud bolts.Exemplary use of the invention

[0042] When using the universal system for toolless mounting of wings to a hydrofoil's fuselage, at least one stud bolt 3 is mounted on the upper side of the fuselage 1, which protrudes partially above it, at its free end the at least one stud bolt 3 has at least one recess and / or protrusion for detachable attachment to the plate 4 by means of horizontal displacement of the plate 4 relative to the at least one stud bolt 3, through the extension in its respective elongated hole 4A, between a fixed position of the at least one stud bolt 3, in which the recess and / or protrusion of the stud bolt 3 is placed in the means for fixing the stud bolt in the respective elongated hole 4A, and a free position of the at least one stud bolt 3, in which the recess and / or protrusion of the stud bolt 3 is placed outside the constriction 4D of the respective elongated hole 4A. The displacement between the two positions of the stud bolt 3 is carried out by rotating the rotary body in the rotation hole 4C, which is transformed into a horizontal displacement of the plate 4 relative to the wing 1B between the fixed and free positions of the stud bolt 3.

[0043] In the embodiment of the invention shown in Figures 1-11, in order to mount the wing 1B to the fuselage 1, the wing 1B is put onto the stud bolts 3, which are mounted on the fuselage 1, after which the system for toolless mounting of wings to hydrofoils, the subject of the invention, is also put onto the stud bolts 3 and onto the wing. In the initial position, the lever 5 is raised and unlocked. In order to lock, firstly the plate 4 is displaced in horizontal direction manually, or as a result of contact between a stop recess 12 in the rotary eccentric body 5A and a stop protrusion in the base 1, during which contact the rotation of the lever 5 in downward direction, transverse to the plate 4, causes the rotary eccentric body 5A to rotate, and by abutting on the base 1, to be displaced relative to it, and thus to displace the plate 4 forward or backward. Thus, when locked, the stud bolts 3 move into the elongated holes 4A in direction of the constrictions 4D, and exert downward pressure on the plate 4, in direction of the wing 1B, which fixes the wing 1B to the fuselage 1. The rotation of the rotary eccentric body 5A, which occurs along the axis of the shaft 6 in the rotation hole 4C of the plate 4, and in the seat of the base 1, pushes the plate 4 in vertical direction and thus moves the plate 4 away from the wing 1B, which pushes the wing 1B towards the fuselage 1 and fixes it to it. In this position, the lever 5 is locked. To unlock it, the lever 5 is rotated in the opposite direction, which causes the eccentric to release the pressure on the plate 4, and the plate 4 is pulled manually or by means of the stop recess 12 and the stop protrusion 11 to the initial position and the stud bolts 3 are released from the constrictions 4D and the system for toolless mounting of wings to hydrofoils can be removed from the wing 1B, and the wing can be removed from the fuselage 1.

[0044] In the embodiment of the invention shown in Figures 12-17, in order to mount the wing 1B to the fuselage 1, the wing 1B is put onto the stud bolts 3, which are mounted on the fuselage 1, after which the system for toolless mounting of wings to hydrofoils, the subject of the invention, is put onto the stud bolts 3 and onto the wing. In the initial position, the lever 5 is in unlocked position, the rotary eccentric body 5A being placed in a longitudinal part of the rotation hole 4C. When the lever 5 is rotated in a parallel direction to the surface of the plate 4, the rotary eccentric body 5A is rotated and displaced into a second longitudinal part of the rotation hole 4C, thus pushing the plate 4, and the stud bolts 3 are moved into the elongated holes 4A in direction of the constrictions 4D, and exert downward pressure on the plate 4, in direction of the wing 1B, which fixes the wing 1B to the fuselage 1. To increase the pressure from the stud bolts 3 to the plate 4, respectively to the wing 1B and to the fuselage 1, the constrictions 4D can be beveled on the upper side in direction of the non-constricted part of the elongated hole 4A, and the stud bolts 3 can be inserted so far into the fuselage that when the stud bolts 3 are moved along the beveled part of the constrictions 4D, the pressure on the plate 4 to be large enough for maximum tight closing of the gaps between the plate 4, the wing 1B, and the fuselage 1. In this position, the lever 5 is locked. In order to unlock it, the lever 5 is rotated in the opposite direction, which moves the eccentric back into the first longitudinal part of the rotation hole 4C, and the plate 4 is displaced to the initial position and the stud bolts 3 are released from the constrictions 4D and the system for toolless mounting of wings to hydrofoils can be removed from the wing 1B, and the wing can be removed from the fuselage 1.

[0045] The reference numbers of the technical features are included in the claims solely for the purpose of increasing the comprehensibility of the claims and, therefore, these reference numbers have no limiting effect on the interpretation of the elements designated by these reference numbers.

Examples

Embodiment Construction

[0020]All examples described herein are given as non-limiting the scope of the invention variants.

[0021]The universal system for toolless mounting of wings to hydrofoils, according to the invention, and as shown in the figures, implements a detachable fixed mechanical connection, and comprises base 1, plate 4 with rotation hole 4C and one or more elongated through holes 4A for stud bolt 3 and rotating lever 5 having an eccentric body 5A, which is integrally or detachably connected to one end of the rotating lever 5. The elongated through holes 4A can be, for example, two, three, four or more. The plate 4 can be made of stainless steel or aluminum or plastic or other suitable material. The rotary eccentric body 5A is partially placed in the rotation hole 4C, and it is also located on the base 1 with the ability of rotation. The rotary eccentric body 5A is integrally or detachably connected to the rotating lever 5, which is fixed to the plate 4 or to the base 1, integrally or by one o...

Claims

1. Universal system for toolless mounting of wings to hydrofoils, comprising a base (1), a plate (4) with rotation hole (4C) and at least one elongated through hole (4A) for a stud bolt (3), and a rotating lever (5) with a rotary eccentric body (5A), which is integrally or detachably connected to one end of the rotating lever (5), wherein the rotary eccentric body (5A) is partially placed in the rotation hole (4C), the rotary eccentric body (5A) is also located on the base (1) with ability of rotation, wherein the rotary eccentric body (5A) is configured with ability to rotate around an axis that is parallel or transverse to the plane of the plate (4), wherein the lever (5) is fixed to the plate (4) or to the base (1), integrally or by at least one fastening means (6), and the plate (4) is configured with ability to move horizontally or vertically and horizontally relative to the base (1) between two end positions, respectively a first and a second position, in one of which positions the plate (4) is configured for locking, and in the other position it is configured for unlocking, respectively to and from the at least one stud bolt (3), between first and second positions when the rotary eccentric body (5A) is rotated, in the first position the plate is freely detachable from the at least one stud bolt (3), and in the second position it engages with the at least one stud bolt (3), wherein the at least one elongated hole (4A) of the plate is configured to receive a stud bolt (3) of a corresponding shape in one part, and has a means for fixing a stud bolt in the other part, wherein when rotating the rotating lever (5), the rotary eccentric body (5A) is configured either with the ability of simultaneous rotation in a seat in the base (1) and maintaining its position therein, or with the ability of simultaneous rotation in the rotation hole (4C) of the plate and displacement in its position therein, between a locked position of the rotating lever (5), in which the plate (4) is fixed to the wing (1B), and an unlocked position of the rotating lever (5), in which the plate (4) is freely detachable from the wing (1B).

2. Universal system for toolless mounting of wings to hydrofoils according to claim 1, characterized in that the base (1) is an adapter (1A) for attaching a wing to a fuselage, having at least one through hole (7) configured to receive a stud bolt (3) of corresponding shape.

3. Universal system for toolless mounting of wings to hydrofoils according to claim 1, characterized in that the base (1) is part of a wing (1B).

4. Universal system for toolless mounting of wings to hydrofoils according to any of the preceding claims, characterized in that it comprises a protective cover (8), detachably mounted to the base (1) and / or to the rotating lever (5).

5. Universal system for toolless mounting of wings to hydrofoils according to any of the preceding claims, characterized in that the rotary eccentric body (5A) is a cylindrical element with a through hole, displaced in radial direction from the axis of symmetry of the rotary eccentric body (5A) in direction of the rotating lever (5), and parallel to the axis of the rotary eccentric body (5A), and it is fixed on the lower side in the mounted position of the rotating lever (5), and it is located partially in the seat in the base (1), which seat has a shape corresponding at least partially to the arc of the rotary eccentric body (5A), the rotating lever (5) together with the rotary eccentric body (5A) are configured with ability to rotate in direction in a plane perpendicular to the flat surface of the plate (4), wherein a fastening means (6) is located in the through hole of the rotary eccentric body (5A), which fastening means (6) is a shaft with a length greater than the length of the through hole of the rotary eccentric body (5A), and both ends of the shaft protrude from the through hole of the rotary eccentric body (5A) and are hingedly arranged in respective lug (2) formed on the plate (4) at two opposite sides of the rotation hole (4C) for partial placement of the rotary eccentric body (5A), which rotation hole (4C) is of elongated shape, wherein in the unlocked position of the rotating lever (5) and in the first position of the plate (4), the plate (4) is displaced from the rotary eccentric body (5A) in direction of the base (1), and in the locked position of the rotating lever (5) and in the second position of the plate (4), the plate (4) is displaced from the rotary eccentric body (5A) vertically further away from the base (1) relative to the unlocked position of the rotating lever (5) and the first position of the plate (4).

6. Universal system for toolless mounting of wings to hydrofoils according to claim 5, characterized in that in the lower part of the rotary eccentric body (5A), which contacts the base (1), a stop recess (12) is formed, in which a stop protrusion (11) in the base (1), complementary to the shape of the stop recess, engages, to provide a stop for displacement in horizontal direction of the plate (4) relative to the base (1).

7. Universal system for toolless mounting of wings to hydrofoils according to any of claims 5 and 6, characterized in that in the lower part of the rotary eccentric body (5A), which contacts the base (1), at least one limiting recess (10) is formed, in which at least one limiting protrusion (9) in the base (1), complementary to the shape of the limiting recess (10), engages, to provide a limit for displacement of the rotating lever (5) relative to the base (1) in direction of the plate parallel to the axis of the rotary eccentric body (5A).

8. Universal system for toolless mounting of wings to hydrofoils according to any of claims 1-4, characterized in that the rotation hole (4C) for the rotary eccentric body is elongated in two directions, the rotating lever (5) together with the rotary eccentric body (5A) are configured with ability to rotate axially in a plane parallel to the flat surface of the plate (4), the rotary eccentric body (5A) is configured with ability to move between the two extensions of the rotation hole (4C) for the rotary eccentric body (5A), respectively between the unlocked and locked positions of the rotating lever (5), wherein through holes are formed at one end of the rotating lever (5) and in the eccentric (5A), in which through holes the fastening means (6) is located, which is a shaft, along the axis of which the rotating lever (5) and the rotary eccentric body (5A) rotate, the shaft (6) is positioned perpendicular to the flat surface of the plate (4), and it is fixed against unintentional extraction from the through holes of the rotary lever (5) and the rotary eccentric body (5A) by a fixing means.

9. Universal system for toolless mounting of wings to hydrofoils according to any of the preceding claims, characterized in that the means for fixing a stud bolt in the at least one elongated hole (4A) of the plate (4) is a constriction (4D) for retaining a collar of a stud bolt (3), formed at one end along its extension.

10. Universal system for toolless mounting of wings to hydrofoils according to claim 9, characterized in that at the border of the constriction (4D), on its inner side, there is at least one internal wedging means for stud bolt, which is a spring-hinged part (4B).

11. Universal system for toolless mounting of wings to hydrofoils according to claim 9, characterized in that the constriction (4D) is beveled on the upper side in direction of the non-constricted part of the elongated hole (4A) in which it is located, the length of the part of the stud bolt (3) that protrudes above the base (1) to the collar of the stud bolt (3) is equal to the height of the constricted end of the elongated hole (4A), wherein in a position in which the stud bolt (3) is located in the constricted end of the elongated hole (4A), the collar of the stud bolt (3) is located above the plate (4) and exerts pressure in direction of the wing (1B) to close the gap between the plate (4) and the wing (1B).

12. Universal system for toolless mounting of wings to hydrofoils according to claim 10, characterized in that the spring-hinged part (4B) is beveled on the upper side in direction of the non-constricted part of the elongated hole (4A) in which it is located, the length of the part of the stud bolt (3) that protrudes above the base (1) to the collar of the stud bolt (3) is equal to the height of the constricted end of the elongated hole (4A), wherein in a position in which the stud bolt (3) is located in the constricted end of the elongated hole (4A), the collar of the stud bolt (3) is located above the plate (4) and exerts pressure in direction of the wing (1B) to close the gap between the plate (4) and the wing (1B).

13. Hydrofoil, comprising a fuselage with a mounted wing (1B) using the universal system for toolless mounting of wings to hydrofoils according to any of claims 1 - 12, wherein at least one stud bolt (3) is mounted on the upper side of the fuselage (1), which protrudes partially above it, at its free end the at least one stud bolt (3) has at least one recess and / or protrusion for detachable attachment to the plate (4) by means of horizontal displacement of the plate (4) relative to the at least one stud bolt (3), by means of the extension in its respective elongated hole (4A), between a fixed position of the at least one stud bolt (3), in which the recess and / or protrusion of the stud bolt (3) is placed in the means for fixing the stud bolt in the respective elongated hole (4A), and a free position of the at least one stud bolt (3), in which the recess and / or protrusion of the stud bolt (3) is placed outside the constriction (4D) of the corresponding elongated hole (4A), wherein the rotation of the rotary body in the rotation hole (4C) is transformed into a horizontal displacement of the plate (4) relative to the wing (1B) between the fixed and free positions of the stud bolt (3).

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