EP4034456A1 - Ensemble aile portante - Google Patents

Ensemble aile portante

Info

Publication number
EP4034456A1
EP4034456A1 EP20789897.4A EP20789897A EP4034456A1 EP 4034456 A1 EP4034456 A1 EP 4034456A1 EP 20789897 A EP20789897 A EP 20789897A EP 4034456 A1 EP4034456 A1 EP 4034456A1
Authority
EP
European Patent Office
Prior art keywords
mast
base plate
arrangement according
foil arrangement
swivel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20789897.4A
Other languages
German (de)
English (en)
Inventor
Max Pajank
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boards and More GmbH
Original Assignee
Boards and More GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boards and More GmbH filed Critical Boards and More GmbH
Publication of EP4034456A1 publication Critical patent/EP4034456A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B63B1/242—Mounting, suspension of the foils

Definitions

  • the invention relates to a foil arrangement according to the preamble of claim 1.
  • Such foil arrangements designed as hydrofoils are used, for example, in kite surfing and windsurfing and make it possible to drive faster than the wind with comparatively small kites / sail areas even with very little wind in the wind range from 2 Bft.
  • SUP boards or boards for surfing have also been designed with foil arrangements of this type, which make it possible to move significantly faster than with conventional boards in the case of small waves or sufficient propulsion.
  • Such foil arrangements are usually attached to their mast via a base plate or a box system such as a Tuttle box, future box or the like on the board.
  • Document US 2015/0017850 A1 discloses a foil arrangement for a watercraft, in which the mast with a plurality of projections is inserted into corresponding recesses in a base plate attached to the watercraft.
  • the fitting elements required for this on the base plate and on the mast or on the mast base are very complex, so that the foil arrangement can only be implemented with a high outlay in terms of device technology.
  • DE 102015 103553 A1 describes a foil arrangement which can be pivoted when the water is shallow or when driving over an obstacle in order to reduce the draft.
  • Such a pivotable foil arrangement is in Inferior to generic solutions in terms of rigidity and the associated hydrodynamic loads at high driving speeds.
  • WO 2020/021138 A1 discloses a foil arrangement in which the mast is designed with an adapter plate which is attached to a base plate by means of two locking pins. These cantilever from the base plate on both sides so that the flow in and around this area is hindered and there is also the risk that the cotter pins are accidentally loosened.
  • WO 2011/075808 A1 describes a foil board which is provided with a removable foil arrangement so that this board can be used both for foiling and for conventional surfing or kite surfing (without foil).
  • the mast of the foil arrangement is designed with an adapter plate which is screwed to a board-side base plate. Loosening or fastening the foil arrangement on the board is relatively complex, since a large number of screws have to be loosened or tightened.
  • the invention is based on the object of creating a foil arrangement in which assembly is simplified. This object is achieved by a foil arrangement according to patent claim 1.
  • the foil arrangement provided for a watercraft in particular a windsurf and kiteboard, has a base plate which is fixed on the watercraft and which is detachably connected to a mast carrying a fuselage by means of a fastening device.
  • the mast has a mast base that is designed to be angled precisely into a recess in the base plate.
  • This angling of the mast foot into the recess of the base plate can be carried out much more easily by a user than the complete insertion of the adapter plate into the base plate, which is required in the prior art, whereby it is very easy during the angling process to remove any impurities such as sand or dirt , to remove.
  • the recess is designed in such a way that after it has been angled in, the base of the mast is received precisely.
  • a physical pivot axis is formed on the base plate or the mast foot, which can be brought into operative engagement with at least one pivot sleeve formed on the respective other component (base plate or mast base).
  • This swivel collar is designed so that it can be brought into contact with the swivel axis when the mast foot is angled, so that the angling is precisely guided into the recess.
  • the swivel collar is designed such that it overlaps the swivel axis on the upper and lower sides, approximately transversely to the swivel axis, so that reliable support is ensured when bending.
  • the pivot axis can have at least one lug that overlaps or extends under the pivot axis on one side, to which at least one swivel collar projection is assigned which extends approximately parallel to the lug at a distance corresponding to the swivel axis diameter, so that the lug and the swivel collar projection in sections of the swivel axis Reach over and under crosswise.
  • the support of the mast foot during bending is further improved if two noses arranged at a distance from one another engage under the pivot axis (as seen in the bending direction), the swivel collar projection being arranged between the noses when viewed from above.
  • the swivel cuff projection is slightly longer than the at least one nose and, when placed at an angle, dips into a corresponding pocket in the base plate, so that relative positioning is simplified by the swiveling cuff projection dipping into the pocket.
  • the fastening device of the foil arrangement is designed with a latch and an additional tensioning device.
  • the latching is designed in the manner of a quick release mechanism, although this can be implemented with a certain amount of play in the solution according to the invention, since the final relative positioning and bracing takes place by means of the bracing device. With this double locking device, the assembly / disassembly of the foil arrangement without tools is also possible, but this latching and additional tensioning increases the security against loss of the very expensive hydrofoil arrangement.
  • the handling of the fastening device is particularly simple if the tensioning device is a tensioning screw mounted on the base of the mast and which is shown in FIG Thread engagement with a corresponding thread of the base plate can be brought.
  • clamping screw is designed to be tightened by hand with a rotary knob.
  • the latching can be carried out with a latching bolt which can be brought into latching engagement with a latching element, the latching bolt preferably being provided on the mast base and the latching element on the base plate.
  • a kinematic reversal is of course also possible.
  • the construction of the latching is particularly simple if the latching bolt has an approximately mushroom-shaped latching head which, in the latched state, is engaged from behind by the resilient latching element.
  • a release button can be provided to easily release the latch.
  • FIG. 1 shows the basic structure of a foil board for kitesurfing
  • FIG. 2 shows a detailed representation of a mast foot and a base plate of the foil arrangement according to FIG. 1;
  • FIG. 3 shows the arrangement according to FIG. 2, a mast foot being attached to the base plate;
  • FIG. 4 shows a bottom view of an area on the pivot axis side of the arrangement according to FIG. 3;
  • FIG. 5 shows a bottom view of an area of the arrangement on the fastening side according to FIG. 3 and FIG. 5
  • FIG. 6 shows a sectional illustration of the area according to FIG. 5.
  • FIG. 1 shows a side view of a board 1 provided for surfing, kiting, surfing, stand-up paddling (“SUP”) or windsurfing, on which a Foil arrangement 2 according to the invention is attached.
  • This has a mast 4 which is detachably fastened to the board 1 via a fixing device 6.
  • a fuselage 8 is attached to the end section of the mast 4 that is remote from the board 1 and carries a front wing 10 at the front and a rear wing 12 at the rear. Both wings 10, 12 are each provided with winglets 14, 16, the winglets 14 on the front wing 10 extending downwards in this embodiment and the winglets 16 on the rear wing 12 extending upwards - of course, other designs are also possible.
  • the fuselage 8 is screwed to the mast 4, for example.
  • the mast 4 is made of an anodized aluminum alloy or the like.
  • the fuselage 8 and the two wings 10, 12 can also be made of a carbon fiber reinforced plastic; Of course, these components can also be made entirely or in sections from a metallic material.
  • FIG. 2 shows essential components of the fixing device 6, these being shown in the view according to FIG. 1 from below with the mast 4 removed.
  • the fixing device 6 has a base plate 18 fastened to the board 1, into which a mast foot 20 fastened to the mast 4 - also called a shoe - is inserted.
  • the base plate 18 is fastened to the board 1 with four fastening screws which penetrate the screw holes 21.
  • the base plate 18 has an approximately frame-shaped structure with a recess 22, which is designed in the manner of a double dovetail profile with central, parallel walls 24, 26 and adjoining, inclined walls 28, 30, 32, 34 is. These are designed in such a way that the clear width of the recesses 22 expands away from the walls 24, 26.
  • the recess 22 is delimited by a rounded and stepped end wall 38 and a somewhat flatter end wall 40. The latter is part of a fastening device 42, the structure of which will be described later with reference to FIGS.
  • a bottom web 44 is provided which extends transversely through the recess 22.
  • the end wall 38 is narrowed to form a continuous fitting recess 46, which has an approximately rectangular contour and at the end merges into a pocket 48 via which the fitting recess 46 is narrowed again.
  • a pivot axis 50 is inserted into the base plate 18. In the illustrated embodiment, this is formed by a cylinder pin.
  • the mast foot 20 has an outer contour which is designed in accordance with the circumferential walls of the recess 22. Accordingly, on the side facing away from the mast 4, the mast foot 20 has fitting walls designed in accordance with the dovetail contour of the recess 22, of which only the visible fitting walls 52, 54, 56, which are in contact with the corresponding walls 26, 28, 32 of the recess 22 can be brought, are provided with reference numerals.
  • the right end section of the mast foot 20 in FIG. 2 is designed in accordance with the contour of the end wall 38, with a fitting projection 58 being formed in accordance with the fitting recess 46.
  • a swiveling collar 60 open towards the swivel axis 50 is provided, which is delimited towards the mast 4 by a swiveling collar projection 62 and towards the base plate 18 by two lugs 64a, 64b, of which in FIG 2 only the nose 64a is visible.
  • the distance between the swivel collar projection 62 on the one hand and the two lugs 64a, 64b on the other hand is designed such that the base plate 18 can be attached obliquely to the swivel axis 50 in the angular position shown in FIG. This approach is shown in FIG.
  • a receptacle 66 is formed into which the board-side end section of the mast 4 is inserted.
  • the end section is provided with a cap 68, which is somewhat oversized in sections is made and consists of plastic, which is designed so that when screwing the mast 4 to the mast foot 20, some material is removed from the cap 68 or plastically deformed, so that an exact fit of the mast 4 in the receptacle 66 is guaranteed.
  • This passport arrangement is the subject of a separate patent application that was filed parallel to the present patent application. For the sake of simplicity, reference is therefore made to the parallel application with regard to further details.
  • the fastening device 42 has a latching device and a tensioning device, a rotary knob 70 of a tensioning screw 72 of the latter being visible in the view according to FIG.
  • the above-mentioned latching is released via an unlocking button 74 arranged on the base plate 18. Further details of the fastening device 42 are explained - as mentioned above - with reference to FIGS. 5 and 6.
  • FIG. 3 shows the state in which the mast foot 20 with the swivel collar 60 is inserted at an angle into the pocket 48 of the base plate 18 so that the swivel collar 60 encompasses the swivel axis 50 (not visible in FIG. 3) and the fitting projection 58 in sections in the fitting recess 46 is immersed so that lateral tilting of the mast foot 20 with respect to the base plate 18 is prevented during the subsequent angling.
  • the fastening device 42 is still out of engagement.
  • FIG. 4 shows a bottom view of the arrangement according to FIG. 3 (the fastening device 42 is not shown for the sake of simplicity). Accordingly, as mentioned above, the fitting projection 58 dips into the fitting recess 46 in sections with a sliding fit.
  • the swivel collar projection 62 plunges into the pocket 48.
  • the views according to FIGS. 3 and 4 clearly show that with these approaches of the mast 4 to the base plate 18, the essential fitting surfaces are still accessible and visible, so that any dirt, sand, etc. can easily be removed.
  • the mast 4 is then angled towards the base plate 18, whereby through the operative engagement of the swivel collar 60 with the swivel axis 50 and the precisely fitting immersion of the fitting projection 58 into the fitting recess 46 and the dovetail contour of the mast foot 20 into the recess 22 during the entire process Bending a lateral offset of the mast 4 and thus damage to the mating surfaces is almost impossible.
  • the mast foot 20 In the angled state, the mast foot 20 then lies with its fitting surfaces within the corresponding contours of the base plate 18 and is then locked by means of the fastening device 42.
  • the fastening device 42 shown in FIG. 5 from below i.e. viewed from the board
  • the tensioning device 80 has the above-mentioned tensioning screw 72 on the mast foot side, which can be actuated by means of the rotary knob 70 and whose threaded section visible in FIG. 5 can be brought into threaded engagement with a threaded bore 81 in the base plate 18.
  • the latch 78 has a latching bolt 82 which is fastened in the mast base 20 and protrudes towards the base plate 18 and which has a latching head 84 which, when bent, can be brought into latching engagement with a spring element (latching element 86) mounted in the base plate 18, which in the latched state the latching head 84 reaches behind.
  • This locking element 86 can be formed, for example, by spring-preloaded claws or by one or more spring elements, which are spread apart when bent by the locking head 84 provided with a butted end face or displaced against bias or and then after the mast foot 20 is completely immersed in the fitting contour of the base plate 18 engage behind the latching head 84 and immerse into a locking groove 88, for example.
  • This locked state is shown in the sectional view according to FIG.
  • the latching element 86 engages behind the latching head 84 in the latching position and dips into the latching groove 88 in the process.
  • the latching element 86 is pretensioned in the direction of engagement.
  • the latching element 86 is pretensioned, for example, by a latching spring 90 in the direction of the locking engagement. This can be canceled by actuating the unlocking button 74, this being displaced to the right towards the base plate 18 in the illustration according to FIG. 6, so that the latching element 86 is moved out of the latching groove 88 in the radial direction.
  • this latching is not performed absolutely free of play.
  • the backlash-free, precisely fitting connection between the base plate 18 and the mast foot 20 is then made by the tensioning device 80, the tensioning screw 72 of which is screwed into the threaded hole 81 by Fland by means of the rotary knob 70.
  • This bracing ensures a backlash-free connection between the base plate 18 and the mast foot 20, the relative position being maintained even if the latching is accidentally released. If the force applied by hand is not sufficient, a tool can be used for clamping.
  • a fastening screw 92 is also shown, by means of which the mast 4 with its cap 68 attached to it is fixed in position in the receptacle 66.
  • a foil arrangement for a watercraft in particular a windsurf or kiteboard, with a mast foot which is implemented on a mast carrying a fuselage and is inserted into a recess in a base plate on the board side.
  • the mast foot and the base plate are designed in such a way that they can be inserted by angling.
  • a foil arrangement is disclosed in which a fastening device for fixing the mast foot on the base plate is designed with a latch and an additional bracing device.
  • Fixation device 8 Fuselage 10 Front wing 12 Rear wing 14 Winglet 16 Winglet 18 Base plate

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention concerne un ensemble aile portante pour un véhicule nautique, en particulier une planche à voile ou une planche à kitesurf, un pied de mât étant agencé sur un mât portant un fuselage, et ledit pied de mât étant conçu de sorte à être inséré dans un évidement, côté planche, d'une plaque de base. Selon l'invention, le pied de mât et la plaque de base sont conçus de sorte que l'insertion peut s'effectuer par mise à l'équerre. L'invention concerne en outre un ensemble aile portante selon lequel un dispositif de fixation destiné à fixer le pied de mât sur la plaque de base comporte un système d'encliquetage et un dispositif de haubanage additionnel.
EP20789897.4A 2019-10-07 2020-10-05 Ensemble aile portante Pending EP4034456A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019126841.9A DE102019126841A1 (de) 2019-10-07 2019-10-07 Foilanordnung
PCT/EP2020/077803 WO2021069355A1 (fr) 2019-10-07 2020-10-05 Ensemble aile portante

Publications (1)

Publication Number Publication Date
EP4034456A1 true EP4034456A1 (fr) 2022-08-03

Family

ID=72840509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20789897.4A Pending EP4034456A1 (fr) 2019-10-07 2020-10-05 Ensemble aile portante

Country Status (3)

Country Link
EP (1) EP4034456A1 (fr)
DE (1) DE102019126841A1 (fr)
WO (1) WO2021069355A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021102124A1 (de) 2020-12-22 2022-06-23 Boards & More Gmbh Foilanordnung und Wassersportgerät
IT202200009143A1 (it) 2022-05-04 2023-11-04 Ricci Int S R L Sistema di connessione per il montaggio di un’appendice su una tavola per sport acquatici

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6695662B2 (en) * 2001-11-07 2004-02-24 Benjamin D. Kelley Surfing craft with removable fin
BRPI0905437A2 (pt) * 2009-12-21 2011-08-23 Work Station Com De Pecas Ltda Me prancha com fixação para hidrofólio removìvel, regulável e ajustável
US9085343B2 (en) * 2013-03-14 2015-07-21 Hydrofoiled, Inc. Universal hydrofoil connector system and method of attachment
CN207843256U (zh) * 2014-03-11 2018-09-11 菲恩控制系统有限公司 适合于安装在船只的鳍插中的鳍板及筒壳
DE102015103553A1 (de) * 2015-03-11 2016-09-15 Ellergon Antriebstechnik Gesellschaft M.B.H. Hydrofoil
DE102015104199A1 (de) * 2015-03-12 2016-09-15 Boards & More Gmbh Foiladapter und Board
DE102018106212A1 (de) * 2018-03-16 2019-09-19 Boards & More Gmbh Foilanordnung
ES2740976B2 (es) * 2018-07-24 2021-03-29 Kookite S L Sistema de fijación rápida para componentes de hidroalas de kitesurf

Also Published As

Publication number Publication date
DE102019126841A1 (de) 2021-04-08
WO2021069355A1 (fr) 2021-04-15

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