EP2841331B1 - Fin for watersport and surfboard therefore - Google Patents

Fin for watersport and surfboard therefore Download PDF

Info

Publication number
EP2841331B1
EP2841331B1 EP13719377.7A EP13719377A EP2841331B1 EP 2841331 B1 EP2841331 B1 EP 2841331B1 EP 13719377 A EP13719377 A EP 13719377A EP 2841331 B1 EP2841331 B1 EP 2841331B1
Authority
EP
European Patent Office
Prior art keywords
fin
base element
cover
region
rod
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.)
Active
Application number
EP13719377.7A
Other languages
German (de)
French (fr)
Other versions
EP2841331A1 (en
Inventor
Felix WUNNER
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2841331A1 publication Critical patent/EP2841331A1/en
Application granted granted Critical
Publication of EP2841331B1 publication Critical patent/EP2841331B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/40—Twintip boards; Wakeboards; Surfboards; Windsurfing boards; Paddle boards, e.g. SUP boards; Accessories specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
    • B63B32/66—Arrangements for fixation to the board, e.g. fin boxes or foil boxes

Definitions

  • the following invention relates to a fin for water sports according to the preamble of claim 1 and a suitable surfboard for this purpose.
  • FIG. 10 The fronts and geometric figures of a conventional fin are represented.
  • a curve maneuver experience conventional fins as the only degrees of freedom a twist at the top.
  • the fin bends laterally away from the fin axis, and upon a subsequent translational movement, the fin urges back into the normal position. Further driving functions are not known.
  • a rod is additionally provided in the shell enclosing the base element, then a further part of the shell surrounding the wing elements, in particular at the end of the fin, will experience a deflection and thus a uniform deflection via the rod, in particular due to the twisting of the tip of the fin according to the twist of the fin tip brought about.
  • the rod which is arranged at the end of the fin, thus serves to transmit the introduced due to the curve movement twisting of the tip to another part of the shell, which is freely movable relative to the base member, and deflect.
  • the Finn according to the application thus describes a fin system which has an active influence on the driving behavior when exercising maneuvers.
  • Existing kinetic and potential energy that arises during exercise is determined by the use of Materials whose individual parts have different linear elastic behavior are further influenced.
  • simple physical effects are used, for example, via the change in shape of the first portion of the wing member, which can stand out from the base member due to the wing function, also generates the steering maneuver supporting buoyancy forces or lateral forces.
  • the according to the application fin adapts to the flow around and generates supportive, for steering maneuvers significant buoyancy forces and resistance moments.
  • the fin according to the application reacts to its surroundings and does not serve exclusively as stabilizing elements of a rigid shape as is the case with conventional fins.
  • the measures and optimizations according to the application lead to an improved driving behavior of the surfboard during the exercise of maneuvers by the user.
  • the wing element is equipped with different moduli of elasticity or stiffnesses between an inner area and an outer area, this measure provides the functions supporting the curve maneuver in a simple manner. This is the case in particular if the modulus of elasticity or the rigidity of the inner area is higher than the modulus of elasticity or the rigidity of the outer area.
  • the base element is rigid and has a modulus of elasticity or a rigidity which is higher than the modulus of elasticity or the stiffness of the wing element, whereby in particular the lateral forces or the lateral buoyancy forces of the first portion of the wing elements are preferably supported.
  • the wing elements and the base element are surrounded by a shell, which is preferably designed to be elastic and / or flexible. It would be most optimal if the shell positively surrounds the wing element and the base member.
  • the respective wing elements are optionally made in one piece, in order to best counteract the material stresses occurring due to the constant twisting. But it can also be due to the production of advantage that in each case a wing element is made separately, which is then positively connected or glued, advantageously in the second portion, so that further, the first portion can be lifted from the base member when the wing member is suspended from the base member and the wing member with the first portion on the base member loosely.
  • the rod executes the corresponding twist due to the curve movement and transmits the twist to its proximal one Partial area and deflects the shell according to the deflection of the fin tip.
  • the supporting twist of the fin tip is transmitted to a wider area of the envelope and thus supports the curve maneuver.
  • the connection point between the distal portion and proximal portion of the rod thus represents a pivot point defining an axis of rotation which lies in the longitudinal direction of the fin.
  • the integral part of the rod in the sheath or on the wing member can exert improved force transmission to the distal part of the rod and thus to the corresponding sheath.
  • FIG. 1 is a side view of the fin according to the invention is shown, which is mounted on a surfboard S and in the side view mainly the sheath 5, which shows both a fin tip FS and a part of the sheath FH, which is freely movable relative to the surfboard.
  • the front view of the fin according to the application is shown on the surfboard, which basically does not differ from a conventional fin in the rest position.
  • the perspective fin is shown, in turn, the fin tip FS and the freely movable part of the shell is recognizable.
  • FIG. 2 is the application according fin in exploded view.
  • the fin according to the application consists of a base element 1 and at least two wing elements 2, which are enclosed by the shell 5.
  • the base element 1 has an end face ST, which is connectable to the water sports or surfboard.
  • the base element 1 has a contact surface AF which lies opposite the end face ST and serves as an abutment or suspension surface for the wing elements 2, whereby due to the positioning and connection of the wing elements 2 over the contact surface, partial regions of the wing elements 2 rest on the base element, if necessary to be able to lift off the base element during a curve maneuver. Additionally is in FIG.
  • each wing element has a first partial area ET1 and has a second partial area ET2.
  • the wing elements are connected via the second partial area ET2 and suspended or connected to the base element 1 in accordance with the separation area between the first partial area ET1 and the second partial area ET2.
  • the rod 6 is integrated at the back of the fin so that upon deflection of the fin tip FS also the flexible part of the shell FH is deflected.
  • FIG. 4 is a sectional view of a wing member shown, by which it can be seen that the wing member has two areas and the modulus of elasticity and the rigidity of the inner region 3 is different than the modulus of elasticity or the rigidity of the outer region 4.
  • FIG. 5 is shown according to the sectional view A: A, where the fulcrum lies between the distal part of the rod and the proximal part of the rod.
  • FIG. 6 a fin located in a curve maneuver is shown, wherein in particular due to the force of the fin tip FS is twisted or deflected and due to the twist of the twisting the opposite first portion of the wing element is lifted from the base member 1 and so a bulge or enlargement of the Surface generated which generates a lateral force or lateral buoyancy.
  • the twist adjacent wing element is pressed against the base member and thus also a Stabilization function of the forces acting on the fin during the curve maneuver causes. Due to this bulge thus the rotation is supported.
  • FIG. 7 is a front view of the fin according to the invention reproduced, in which in particular the fin tip FS and the flexible part of the shell FH is reflected reflected.
  • the top view is also shown, from which in particular the double deflection brought about by the rod according to the application can be recognized both the fin tip FS and the movable part of the sleeve FH. This double or assistive deflection favors the rotation of the surfboard.
  • FIG. 8 is a comparison representation reproduced between a conventional profile and the profile of the application according fin, which is in a curve movement and that according to the section A: A. Because of this representation, it can be seen that, on the one hand, the deflected fin tip FS and the flexible part of the shell FH lead to an increased resistance force, which, as shown, leads the surfboard into a counter-clockwise rotational movement and likewise leads through the lifted off of the base element Wing element generated buoyancy force another rotational movement, which favors the maneuverability for the user. This is in particular based FIG. 9 shown when both force arrows act on the surfboard relative to the center of gravity of the surfboard.
  • the said bulge is caused by the bending (due to the action of external forces in changes of direction) of the upper wing element and the corresponding detachment of the lower wing element, which lies loosely and positively on the base.
  • the outer regions of the wing elements which have a different modulus of elasticity or a different stiffness than the inner regions are held by the elastic sheath to the base. Consequently, only the inner wing element with the highest modulus of elasticity or the highest rigidity bulges outward, see drawing 4.
  • the lower or proximal part of the rod is twisted in the same direction and laterally moves the elastic sheath out of the longitudinal axis of the water sports device. It creates a lever. Since the upper or distal bar element integrated into the wing elements exceeds the length of the lower part located in the elastic shell, see drawing 6.
  • This force is offset from the longitudinal axis of the water sports equipment and forms a lever arm to the center of gravity of the water sports equipment, see Figure 7.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Toys (AREA)
  • User Interface Of Digital Computer (AREA)

Description

Die folgende Erfindung betrifft eine Finne zum Wassersport gemäß dem Oberbegriff des Anspruchs 1 sowie ein geeignetes Surfbrett hierfür.The following invention relates to a fin for water sports according to the preamble of claim 1 and a suitable surfboard for this purpose.

Der globale Markt der Surf-Industrie wächst analog zur rasant steigenden Beliebtheit der Trendsportart. Allein am größten europäischen Standort der Surfindustrie dem französischen Biarritz generieren 385 Unternehmen mit rund 3200 Mitarbeitern einen Jahresumsatz von mehr als 1,2 Mrd. Euro.The global market of the surf industry is growing analogously to the rapidly increasing popularity of the trend sport. 385 companies with around 3200 employees generate annual sales of more than 1.2 billion euros at the largest European surfer industry in Biarritz, France.

Seit im Jahre 1930 erstmals stabilitätsunterstützende Elemente an Surfbrettern montiert wurden, wurden bis heute zahlreiche Positionen am hinteren Teil des Surfbretts verwirklicht, um deren komplexe, für den Nutzwert des Brettes essentiell wichtige Funktionalität zu optimieren.Since the first stability-supporting elements were mounted on surfboards in 1930, numerous positions have been realized on the back of the surfboard to optimize their complex functionality, which is essential for the usefulness of the board.

Bezüglich der Form ist bei allen gängigen Modellen ein zu Fischflossen analoges und fluiddynamisch angepasstes Profil zu erkennen. Großen Einfluss hat die Verwendung von Materialien wie Epoxid Harz oder kohlenstofffaserverstärktem Kunststoff, um, neben dem Aspekt der Gewichtsreduzierung auch die Bewegungsfreiheit und Flexibilität der Finnenspitze durch unterschiedliche Laminatstärken zu manipulieren. Die Eigenschaften einer Finne werden während der Fertigung bestimmt.With regard to the shape, a profile analogous to that of fish fins and adapted in terms of fluid dynamics can be recognized in all current models. The use of materials such as epoxy resin or carbon fiber reinforced plastic has great influence in order, in addition to the aspect of weight reduction, to manipulate the freedom of movement and flexibility of the fin tip by means of different laminate thicknesses. The properties of a fin are determined during manufacture.

Somit ist bekannt, dass starre Finnen eingesetzt werden, um Richtungsstabilitäten zu gewährleisten. Diese Finnen bestehen aus einem Stück, und sind meist laminiert. Lediglich die Flexibilität in der Spitze der Finne wird durch unterschiedlich eingesetztes Material in dünneren Schichten erreicht. Die einzige Reaktion der Finne bei Richtungsänderung zeichnet sich in der Verdrillung der Spitze bei Kurvenmanövern durch Kräfte von Außen ab. Diese Kräfte wirken durch den Widerstand des Wassers, wie es beispielsweise in Figur 10 zu sehen ist. Bei anschließender Fahrt geradeaus geht die Finne wieder in die Normalposition zurück. Siehe z.B Gebrauchmuster DE 9100911 U1 .Thus, it is known that rigid fins are used to ensure directional stabilities. These fins are made in one piece and are usually laminated. Only the flexibility in the tip of the fin is achieved by different material used in thinner layers. The only reaction of the Finn when changing direction is characterized by the twisting of the tip when cornering maneuvers by forces from the outside. These forces act by the resistance of the water, as for example in FIG. 10 you can see. When driving straight ahead, the Finn returns to the normal position. See eg utility model DE 9100911 U1 ,

Gemäß Figur 10 werden die Frontseiten und geometrischen Abbildungen einer herkömmlichen Finne dargestellt. Bei einem Kurvenmanöver erfahren herkömmliche Finnen als einzige Freiheitsgrade eine Verdrillung an der Spitze. Beim Einleiten von Rotationsbewegungen biegt sich die Finne seitlich zur Finnenachse weg und bei einer anschließenden Translationsbewegung drängt die Finne zurück in die Normalposition. Weitergehende das Fahrverhalten unterstutzte Funktionen sind nicht bekannt.According to FIG. 10 The fronts and geometric figures of a conventional fin are represented. In a curve maneuver experience conventional fins as the only degrees of freedom a twist at the top. When initiating rotational movements, the fin bends laterally away from the fin axis, and upon a subsequent translational movement, the fin urges back into the normal position. Further driving functions are not known.

Es ist somit eine Aufgabe der folgenden Erfindung, das Fahrverhalten unterstützende Eigenschaften gegenüber herkömmlichen Finnen zu verbessern. Es ist ferner eine weitere Aufgabe der folgenden Erfindung, aktiv die angestrebte Bewegung des Nutzers zu unterstützen.It is therefore an object of the present invention to improve the driving behavior supporting properties over conventional fins. It is a further object of the present invention to actively assist the intended movement of the user.

Gelöst werden diese Aufgaben mit den Merkmalen des Anspruchs 1 sowie entsprechend Anspruch 12.These objects are achieved with the features of claim 1 and according to claim 12.

Aufgrund der anmeldungsgemäßen Maßnahme, dass an dem Basiselement mindestens zwei Flügelelemente vorgesehen sind, besteht die Möglichkeit, dass nicht nur eine Verdrillung der Finnenspitze herbeigeführt wird, sondern auch ein weiterer Teil der Finne ausgelenkt wird, der freibeweglich gegenüber dem Basiselement ist, und somit eine Richtungsänderung unterstützend ausgelöst wird. Dadurch, dass die Flügelelemente lediglich über einen zweiten Teilbereich verbunden sind, ist die Maßnahme möglich, dass der Verdrillung abgewandten Seite der Finne sich der erste Teilbereich des Flügelelementes von dem Basiselement abhebt und somit aufgrund der Wölbung des ersten Teilbereichs des Flügelelements über den sogenannten Auftriebseffekt eine weitere unterstützende Richtungsänderung eingeleitet wird.Due to the measure according to the application that at least two wing elements are provided on the base member, there is the possibility that not only a twist of the fin tip is brought about, but also a further part of the fin is deflected, which is freely movable relative to the base member, and thus a change in direction supportive triggered. Due to the fact that the wing elements are connected only over a second partial area, the measure is possible that the twisting side facing away from the fin, the first portion of the wing element lifts from the base element and thus due to the curvature of the first portion of the wing element on the so-called buoyancy effect further supportive change of direction is initiated.

Wird anmeldungsgemäß zusätzlich in die das Basiselement umschließende Hülle ein Stab vorgesehen, so wird insbesondere aufgrund der Verdrillung der Spitze der Finne auch ein weiterer Teil der die Flügelelemente umgebenden Hülle, insbesondere am Ende der Finne, eine Auslenkung erfahren und somit über den Stab eine gleichmäßige Auslenkung entsprechend der Verdrillung der Finnenspitze herbeigeführt. Der Stab, der am Ende der Finne angeordnet Ist, dient somit dazu, die aufgrund der Kurvenbewegung eingeleitete Verdrillung der Spitze auf einen weiteren Teil der Hülle, welcher gegenüber des Basiselements freibeweglich angeordnet ist, zu übertragen und auszulenken.If, according to the application, a rod is additionally provided in the shell enclosing the base element, then a further part of the shell surrounding the wing elements, in particular at the end of the fin, will experience a deflection and thus a uniform deflection via the rod, in particular due to the twisting of the tip of the fin according to the twist of the fin tip brought about. The rod, which is arranged at the end of the fin, thus serves to transmit the introduced due to the curve movement twisting of the tip to another part of the shell, which is freely movable relative to the base member, and deflect.

Die anmeldungsgemäße Finne beschreibt somit ein Finnensystem, welches aktiven Einfluss auf das Fahrverhalten bei der Ausübung von Manövern hat. Vorhandene kinetische und potentielle Energie, welche bei der Ausübung entsteht, wird durch die Verwendung von Materialien, deren einzelne Teilbereiche unterschiedliches linear elastisches Verhalten aufweisen, weitergehend beeinflusst. Ferner werden einfache physikalische Effekte genutzt, um beispielsweise über die Formänderung des ersten Teilbereiches des Flügelements, welches sich von dem Basiselement aufgrund der Flügelfunktion abheben kann, ein ebenfalls das Lenkmanöver unterstützende Auftriebskräfte bzw. Lateralkräfte erzeugt. Die anmeldungsgemäße Finne passt sich an die Umströmung an und generiert unterstützende, für Lenkmanöver bedeutsame Auftriebskräfte und Widerstandsmomente.The Finn according to the application thus describes a fin system which has an active influence on the driving behavior when exercising maneuvers. Existing kinetic and potential energy that arises during exercise is determined by the use of Materials whose individual parts have different linear elastic behavior are further influenced. Furthermore, simple physical effects are used, for example, via the change in shape of the first portion of the wing member, which can stand out from the base member due to the wing function, also generates the steering maneuver supporting buoyancy forces or lateral forces. The according to the application fin adapts to the flow around and generates supportive, for steering maneuvers significant buoyancy forces and resistance moments.

Im Vergleich zu konventionellen Finnen reagiert die anmeldungsgemäße Finne auf ihre Umgebung und dient nicht ausschließlich als stabilisierende Elemente von starrer Gestalt wie bei herkömmlichen Finnen zu erfahren ist. Die anmeldungsgemäßen Maßnahmen und Optimierungen führen zu einem verbesserten Fahrverhalten des Surfbretts während der Ausübung von Manövern durch den Nutzer.Compared to conventional fins, the fin according to the application reacts to its surroundings and does not serve exclusively as stabilizing elements of a rigid shape as is the case with conventional fins. The measures and optimizations according to the application lead to an improved driving behavior of the surfboard during the exercise of maneuvers by the user.

Wird jeweils das Flügelelement mit unterschiedlichen Elastizitätsmodulen bzw. Steifigkeiten zwischen einem Innenbereich und Außenbereich ausgestattet, so wird mit dieser Maßnahme auf einfache Weise die das Kurvenmanöver unterstützenden Funktionen bereitgestellt. Dies ist insbesondere der Fall, wenn das Elastizitätsmodul bzw. die Steifigkeit des Innenbereichs höher als das Elastizitätsmodul bzw. die Steifigkeit des Außenbereichs ist.If in each case the wing element is equipped with different moduli of elasticity or stiffnesses between an inner area and an outer area, this measure provides the functions supporting the curve maneuver in a simple manner. This is the case in particular if the modulus of elasticity or the rigidity of the inner area is higher than the modulus of elasticity or the rigidity of the outer area.

Vorteilhafterweise wird das Basiselement starr ausgebildet und weist ein Elastizitätsmodul bzw. eine Steifigkeit auf, welche höher als das Elastizitätsmodul bzw. die Steifigkeit des Flügelelementes ist, wodurch insbesondere die Lateralkräfte bzw. die seitlichen Auftriebskräfte des ersten Teilbereichs der Flügelelemente bevorzugt unterstützt werden.Advantageously, the base element is rigid and has a modulus of elasticity or a rigidity which is higher than the modulus of elasticity or the stiffness of the wing element, whereby in particular the lateral forces or the lateral buoyancy forces of the first portion of the wing elements are preferably supported.

Um grundsätzlich die auf dem Basiselement aufgehängten Flügelelemente vor äußeren Einflüssen zu schützen, ist es von Vorteil, wenn die Flügelelemente und das Basiselement von einer Hülle umgeben werden, welche vorzugsweise elastisch und/oder flexibel ausgelegt ist. Am optimalsten wäre es, wenn die Hülle formschlüssig das Flügelelement und das Basiselement umgibt.In principle, in order to protect the wing elements suspended on the base element against external influences, it is advantageous if the wing elements and the base element are surrounded by a shell, which is preferably designed to be elastic and / or flexible. It would be most optimal if the shell positively surrounds the wing element and the base member.

Je nach Fertigungstechnik ist es von Vorteil, wenn die jeweiligen Flügelelemente gegebenenfalls einstückig hergestellt werden, um die aufgrund der ständigen Verdrillung auftretenden Materialbeanspruchungen bestens zu begegnen. Es kann aber auch herstellungsbedingt von Vorteil sein, dass jeweils ein Flügelelement separat gefertigt wird, welches dann kraftschlüssig verbunden bzw. verklebt wird, und zwar vorteilhafterweise in dem zweiten Teilbereich, sodass weiterhin der erste Teilbereich sich von dem Basiselement abheben kann, wenn das Flügelelement an dem Basiselement aufgehängt wird und das Flügelelement mit dem ersten Teilbereich an dem Basiselement lose anliegt.Depending on the production technique, it is advantageous if the respective wing elements are optionally made in one piece, in order to best counteract the material stresses occurring due to the constant twisting. But it can also be due to the production of advantage that in each case a wing element is made separately, which is then positively connected or glued, advantageously in the second portion, so that further, the first portion can be lifted from the base member when the wing member is suspended from the base member and the wing member with the first portion on the base member loosely.

Wird vorteilhafterweise der Stab mit einem das Basiselement umschließenden Flügelelement im distalen Teilbereich, wobei der distale Teilbereich von der Verbindung des Basiselements mit dem Wassersportgerät gesehen wird, fest integriert, so führt der Stab aufgrund der Kurvenbewegung die entsprechende Verdrillung aus und überträgt die Verdrillung auf seinen proximalen Teilbereich und lenkt die Hülle entsprechend der Auslenkung der Finnenspitze aus. Auf diese Weise wird die unterstützende Verdrillung der Finnenspitze auf einen weiteren Bereich der Hülle übertragen und somit das Kurvenmanöver unterstützt. Der Verbindungspunkt zwischen dem distalen Teilbereich und proximalen Teilbereich des Stabes stellt somit einen Drehpunkt dar, der eine Drehachse definiert, welche in Längsrichtung der Finne liegt.If the rod is advantageously firmly integrated with a wing element enclosing the base element in the distal portion, the distal portion being seen from the connection of the base element to the water sport device, the rod executes the corresponding twist due to the curve movement and transmits the twist to its proximal one Partial area and deflects the shell according to the deflection of the fin tip. In this way, the supporting twist of the fin tip is transmitted to a wider area of the envelope and thus supports the curve maneuver. The connection point between the distal portion and proximal portion of the rod thus represents a pivot point defining an axis of rotation which lies in the longitudinal direction of the fin.

Ist der distale Teilbereich des Stabes länger als der proximale Teilbereich des Stabes ausgestaltet, so kann der fest integrierte Teil des Stabes in der Hülle bzw. an dem Flügelelement eine verbesserte Kraftübertragung auf den distalen Teil des Stabes und somit auf die entsprechende Hülle ausüben.If the distal portion of the rod is designed to be longer than the proximal portion of the rod, then the integral part of the rod in the sheath or on the wing member can exert improved force transmission to the distal part of the rod and thus to the corresponding sheath.

Weitere vorteilhafte Ausgestaltungen der vorliegenden Erfindung ist Gegenstand der weiteren Unteransprüche.Further advantageous embodiments of the present invention is the subject of the further subclaims.

Eine vorteilhafte Ausführungsform des vorliegenden Anmeldegegenstandes wird anhand nachfolgender Zeichnungen dargestellt.

Figur 1
zeigt die Seitenansicht, die Frontansicht und die perspektivische Ansicht der anmeldungsgemäßen Finne
Figur 2
zeigt eine Explosionsdarstellung der anmeldungsgemäßen Finne
Figur 3
zeigt eine Schnittzeichnung der anmeldungsgemäßen Finne
Figur 4
zeigt eine Schnittansicht eines Flügelelementes der anmeldungsgemäßen Finne
Figur 5
zeigt in einer vergrößerten Darstellung die Schnittzeichnung gemäß Figur 3 zur Verdeutlichung des entstehenden Drehpunktes
Figur 6
zeigt die anmeldungemäße Finne während eines Kurvenmanövers und die jeweiligen Auslenkungen (Reaktion 1) in der Schnittansicht
Figur 7
zeigt die Verdrillung der Finnenspitze und des weiteren Teils der Hülle (Reaktion 2) sowohl in der Frontansicht als auch in der Draufsicht
Figur 8
zeigt die jeweiligen Kräfteeinflüsse der anmeldungsgemäßen Finne gegenüber einem herkömmlichen Profil
Figur 9
zeigt die jeweiligen Rotationseinflüsse eines Surfbretts unter Verwendung der anmeldungsgemäßen Finne
Figur 10
zeigt sowohl die Draufsicht als auch die Fröntansicht einer herkömmlichen Finne gemäß dem Stand der Technik jeweils in einer Schnittzeichnung
An advantageous embodiment of the present application subject is illustrated by the following drawings.
FIG. 1
shows the side view, the front view and the perspective view of the application according fin
FIG. 2
shows an exploded view of the fin according to the application
FIG. 3
shows a cross-sectional view of the application according fin
FIG. 4
shows a sectional view of a wing element of the application according to fin
FIG. 5
shows in an enlarged view the sectional drawing according to FIG. 3 to clarify the resulting fulcrum
FIG. 6
shows the registration-making fin during a curve maneuver and the respective deflections (reaction 1) in the sectional view
FIG. 7
shows the twist of the fin tip and the other part of the sheath (reaction 2) both in the front view and in the plan view
FIG. 8
shows the respective forces influences of the according to the application fin compared to a conventional profile
FIG. 9
shows the respective rotational influences of a surfboard using the fin according to the application
FIG. 10
shows both the top view and the front view of a conventional fin according to the prior art in each case in a sectional drawing

In Figur 1 ist eine Seitenansicht der anmeldungsgemäßen Finne dargestellt, welche an einem Surfbrett S montiert ist und in der Seitenansicht vorrangig die Hülle 5 zeigt, welche sowohl eine Finnenspitze FS als auch einen Teil der Hülle FH zeigt, welcher gegenüber dem Surfbrett freibeweglich angeordnet ist. Im Teil B der Figur 1 ist die Frontansicht der anmeldungsgemäßen Finne auf dem Surfbrett dargestellt, welches sich grundsätzlich in Ruheposition nicht von einer herkömmlichen Finne unterscheidet. Im Teil C der Figur 1 ist die perspektivische Finne gezeigt, bei der wiederum die Finnenspitze FS und der freibewegliche Teil der Hülle erkennbar ist.In FIG. 1 is a side view of the fin according to the invention is shown, which is mounted on a surfboard S and in the side view mainly the sheath 5, which shows both a fin tip FS and a part of the sheath FH, which is freely movable relative to the surfboard. In part B of the FIG. 1 the front view of the fin according to the application is shown on the surfboard, which basically does not differ from a conventional fin in the rest position. In part C of the FIG. 1 the perspective fin is shown, in turn, the fin tip FS and the freely movable part of the shell is recognizable.

In Figur 2 ist die anmeldungsgemäße Finne in Explosionsdarstellung wiedergegeben. Die anmeldungsgemäße Finne besteht aus einem Basiselement 1 und mindestens zwei Flügelelemente 2, welche von der Hülle 5 umschlossen sind. Das Basiselement 1 weist eine Stirnfläche ST auf, die mit dem Wassersport bzw. Surfbrett verbindbar ist. Ferner weist das Basiselement 1 eine der Stirnfläche ST gegenüberliegende Auflagefläche AF auf, die als Widerlager bzw. Aufhängefläche für die Flügelelemente 2 dient, wobei durch die Positionierung und Verbindung der Flügelelemente 2 über die Auflagefläche Teilbereiche der Flügelelemente 2 an dem Basiselement anliegen, um gegebenenfalls sich von dem Basiselement bei einem Kurvenmanöver abheben zu können. Zusätzlich ist in Figur 2 der Stab 6 dargestellt, welcher die Verdrillung der Finnenspitze FS auf den gegenüber dem Basiselement 1 freibeweglichen Teil der Hülle FH überträgt. Ebenso ist erkennbar, dass jedes Flügelelement einen ersten Teilbereich ET1 aufweist und eine zweiten Teilbereich ET2 aufweist. Die Flügelelemente werden über den zweiten Teilereich ET2 verbunden und entsprechend dem Trennungsbereich zwischen dem ersten Teilbereich ET1 und dem zweiten Teilbereich ET2 auf das Basiselement 1 aufgehängt bzw. verbunden. Mit dieser Maßnahme wird erreicht, dass der erste Teilbereich ET1 sich von dem Basiselement 1 abheben kann und somit eine weitere Auftriebskraft zur Unterstützung einer Rotationsbewegung des Surfbrettes herbeiführt. Gleichwohl wird der Stab 6 an der Rückseite der Finne so integriert, dass bei Auslenkung der Finnenspitze FS ebenso der flexible Teil der Hülle FH ausgelenkt wird.In FIG. 2 is the application according fin in exploded view. The fin according to the application consists of a base element 1 and at least two wing elements 2, which are enclosed by the shell 5. The base element 1 has an end face ST, which is connectable to the water sports or surfboard. Furthermore, the base element 1 has a contact surface AF which lies opposite the end face ST and serves as an abutment or suspension surface for the wing elements 2, whereby due to the positioning and connection of the wing elements 2 over the contact surface, partial regions of the wing elements 2 rest on the base element, if necessary to be able to lift off the base element during a curve maneuver. Additionally is in FIG. 2 of the Bar 6 shown, which transmits the twist of the fin tip FS on the relative to the base member 1 freely movable part of the shell FH. It can likewise be seen that each wing element has a first partial area ET1 and has a second partial area ET2. The wing elements are connected via the second partial area ET2 and suspended or connected to the base element 1 in accordance with the separation area between the first partial area ET1 and the second partial area ET2. With this measure, it is achieved that the first subarea ET1 can lift off from the base element 1 and thus brings about a further buoyancy force to support a rotational movement of the surfboard. However, the rod 6 is integrated at the back of the fin so that upon deflection of the fin tip FS also the flexible part of the shell FH is deflected.

In Figur 3 wird insbesondere aufgrund der Schnittansicht A:A. die jeweilige Zusammenstellung bzw. Kombination der Flügelelemente 2 mit dem Basiselement 1 wiedergegeben, welche über den Trennbereich T den ersten und zweiten Teilbereich des Flügelelementes erkennen lässt. Zusätzlich ist in der Schnittansicht A:A zu erkennen, wie der Stab 6 in der Hülle 5 positioniert ist. Dies wird ebenso in der Schnittansicht B:B wiedergegeben. In der Schnittansicht B:B ist zu erkennen, wie der erste Teilbereich ET1 des Flügelelementes 2 an dem Basiselement 1 anliegt und von der Hülle 5 umschlossen wird. Ebenso ist zu erkennen, wie der Stab 6 in der Hülle positioniert ist.In FIG. 3 in particular due to the sectional view A: A. the respective composition or combination of the wing elements 2 is reproduced with the base element 1, which reveals the first and second partial area of the wing element via the separation area T. In addition, in the sectional view A: A can be seen how the rod 6 is positioned in the shell 5. This is also reflected in the sectional view B: B. In the sectional view B: B it can be seen how the first portion ET1 of the wing element 2 bears against the base element 1 and is enclosed by the shell 5. It can also be seen how the rod 6 is positioned in the shell.

In Figur 4 ist eine Schnittansicht eines Flügelelementes dargestellt, anhand derer erkennbar ist, dass das Flügelelement zwei Bereiche aufweist und das Elastizitätsmodul bzw. die Steifigkeit des Innenbereichs 3 anders als das Elastizitätsmodul bzw. die Steifigkeit des Außenbereichs 4 ist.In FIG. 4 is a sectional view of a wing member shown, by which it can be seen that the wing member has two areas and the modulus of elasticity and the rigidity of the inner region 3 is different than the modulus of elasticity or the rigidity of the outer region 4.

In Figur 5 wird entsprechend der Schnittansicht A:A dargestellt, wo der Drehpunkt zwischen dem distalen Teil des Stabes und dem proximalen Teil des Stabes liegt.In FIG. 5 is shown according to the sectional view A: A, where the fulcrum lies between the distal part of the rod and the proximal part of the rod.

In Figur 6 wird eine sich in einem Kurvenmanöver befindliche Finne dargestellt, wobei insbesondere aufgrund der Krafteinwirkung die Finnenspitze FS verdrillt bzw. ausgelenkt wird und aufgrund der Verdrillung der der Verdrillung der gegenüberliegende erste Teilbereich des Flügelelementes sich von dem Basiselement 1 abhebt und so eine Aufwölbung bzw. Vergrößerung der Oberfläche erzeugt, die eine Lateralkraft bzw. seitliche Auftriebskraft erzeugt. Gleichwohl wird dargestellt, dass das der Verdrillung benachbarte Flügelelement an das Basiselement gedrückt wird und somit auch eine Stabilisierungsfunktion der Kräfteeinflüsse auf die Finne während des Kurvenmanövers herbeiführt. Aufgrund dieser Aufwölbung wird somit die Rotationsbewegung unterstützt.In FIG. 6 a fin located in a curve maneuver is shown, wherein in particular due to the force of the fin tip FS is twisted or deflected and due to the twist of the twisting the opposite first portion of the wing element is lifted from the base member 1 and so a bulge or enlargement of the Surface generated which generates a lateral force or lateral buoyancy. However, it is shown that the twist adjacent wing element is pressed against the base member and thus also a Stabilization function of the forces acting on the fin during the curve maneuver causes. Due to this bulge thus the rotation is supported.

In Figur 7 ist eine Frontansicht der anmeldungsgemäßen Finne wiedergegeben, bei der insbesondere die Finnenspitze FS als auch der flexible Teil der Hülle FH ausgelenkt wiedergegeben wird. In Figur 7 ist ebenso die Draufsicht dargestellt, aus der insbesondere die durch den anmeldungsgemäßen Stab herbeigeführte doppelte Auslenkung sowohl der Finnenspitze FS als auch des beweglichen Teils der Hülle FH zu erkennen ist. Durch diese doppelte oder unterstützende Auslenkung wird die Rotation des Surfbretts begünstigt.In FIG. 7 is a front view of the fin according to the invention reproduced, in which in particular the fin tip FS and the flexible part of the shell FH is reflected reflected. In FIG. 7 the top view is also shown, from which in particular the double deflection brought about by the rod according to the application can be recognized both the fin tip FS and the movable part of the sleeve FH. This double or assistive deflection favors the rotation of the surfboard.

In Figur 8 ist eine Vergleichsdarstellung wiedergegeben zwischen einem herkömmlichen Profil und dem Profil der anmeldungsgemäßen Finne, welches sich in einer Kurvenbewegung befindet und zwar entsprechend dem Schnitt A:A. Aufgrund dieser Darstellung ist erkennbar, dass zum einen die ausgelenkte Finnenspitze FS als auch der flexible Teil der Hülle FH zu einer erhöhten Widerstandskraft führen, die entsprechend der Darstellung das Surfbrett in eine Rotationsbewegung entgegengesetzt des Uhrzeigersinns führt und ebenso führt die durch das von dem Basiselement abgehobene Flügelelement erzeugte Auftriebskraft eine weitere Drehbewegung aus, welche das Manöververhalten für den Nutzer begünstigt. Dies wird insbesondere anhand Figur 9 dargestellt, wenn beiden Kräftepfeile gegenüber dem Schwerpunkt des Surfbrettes auf das Surfbrett wirken.In FIG. 8 is a comparison representation reproduced between a conventional profile and the profile of the application according fin, which is in a curve movement and that according to the section A: A. Because of this representation, it can be seen that, on the one hand, the deflected fin tip FS and the flexible part of the shell FH lead to an increased resistance force, which, as shown, leads the surfboard into a counter-clockwise rotational movement and likewise leads through the lifted off of the base element Wing element generated buoyancy force another rotational movement, which favors the maneuverability for the user. This is in particular based FIG. 9 shown when both force arrows act on the surfboard relative to the center of gravity of the surfboard.

Allgemein ist somit zusammenfassend festzuhalten, dass insbesondere zwei neue Reaktionen gegenüber herkömmlichen Finnen herbeigeführt wird. Zum Einen eine erhöhte Auslenkung der Finnespitze FS mit dem freibeweglichen Teil der Hülle FH, welche über einen integrierten Stab erzeugt wird, und eine erhöhte seitliche "Auftriebskraft", welche die Rotationsbewegung auf das Surfbrett ebenfalls erhöht.In general, therefore, it should be stated in summary that in particular two new reactions compared to conventional fins is brought about. On the one hand, an increased deflection of the Finnespitze FS with the freely movable part of the shell FH, which is generated by an integrated rod, and an increased lateral "buoyancy force", which also increases the rotational movement on the surfboard.

Im Nachfolgenden werden die beiden Reaktionen und Vorteile erläutert:

  • Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, dass die Verdrillung der Spitze bei Richtungsänderungen sowohl zu einer Auswölbung eines der unteren Flügelelemente (Reaktion 1) als auch zu einem Eindrehen des hinteren, am Wassersportgerät liegenden Teils der elastischen Hülle (Reaktion 2) führen. Beide Reaktionen laufen simultan ab und werden im Folgenden beschrieben:
The following explains the two reactions and advantages:
  • The advantages achieved by the invention are in particular that the twisting of the tip when changing direction lead both to a bulge of one of the lower wing elements (reaction 1) and to a screwing in of the rear part of the elastic shell lying on the water sport device (reaction 2). Both reactions occur simultaneously and are described below:

Zu Reaktion 1:To reaction 1:

Die genannte Auswölbung entsteht durch die Biegung (aufgrund der Einwirkung äußerer Kräfte bei Richtungsänderungen) des oberen Flügelelements und dem entsprechenden Ablösen des unteren Flügelelements, der lose und formschlüssig auf der Basis liegt. Die Außenbereiche der Flügelelemente, welche ein anderes Elastizitätsmodul bzw. eine andere Steifigkeit als die Innenbereiche aufweisen, werden durch die elastische Hülle an der Basis gehalten. Folglich wölbt sich lediglich das innere Flügelelement mit dem höchsten Elastizitätsmodul bzw. der höchsten Steifigkeit nach außen, siehe Zeichnung 4.The said bulge is caused by the bending (due to the action of external forces in changes of direction) of the upper wing element and the corresponding detachment of the lower wing element, which lies loosely and positively on the base. The outer regions of the wing elements, which have a different modulus of elasticity or a different stiffness than the inner regions are held by the elastic sheath to the base. Consequently, only the inner wing element with the highest modulus of elasticity or the highest rigidity bulges outward, see drawing 4.

Zu Reaktion 2:To reaction 2:

Bei Verdrillung der Finnenspitze FS wird der in den Flügelelementen integrierte obere Teil des Stabes mit eingelenkt. Es entsteht ein Drehpunkt am hinteren oberen Ende des starren Basiselementes, siehe Zeichnung 5.When the fin tip FS is twisted, the upper part of the rod integrated in the wing elements is also deflected. The result is a pivot point at the rear upper end of the rigid base element, see drawing 5.

Folglich wird der untere oder proximale Teil des Stabes in die selbe Richtung verdreht und bewegt die elastische Hülle aus der Längsachse des Wassersportgeräts seitlich heraus. Es entsteht ein Hebel. Da der obere oder distale, in die Flügelelemente integrierte Stab Teil die Länge des unteren in der elastischen Hülle befindlichen Teils überschreitet, siehe Zeichnung 6.Consequently, the lower or proximal part of the rod is twisted in the same direction and laterally moves the elastic sheath out of the longitudinal axis of the water sports device. It creates a lever. Since the upper or distal bar element integrated into the wing elements exceeds the length of the lower part located in the elastic shell, see drawing 6.

Durch die beiden oben genannten Reaktionen der Finne entstehen Kräfte, welche das im Folgenden beschriebene Drehmoment auslösen.The two above-mentioned reactions of the fin give rise to forces which trigger the torque described below.

Entstehende Kräfte und Momente auf Reaktion 1:Resulting forces and moments on reaction 1:

Es ist bekannt, dass eine verstärkte Auswölbung bei Profilen einen erhöhten Auftrieb erzeugt. Im Fall der Erfindung entsteht durch die von der Biegung der Spitze eingeleitete Wölbung im unteren Teil eine Kraft in der Ebene des Wassersportgeräts und rechtwinklig auf der Finnenlängsachse stehend, siehe Zeichnung 7.It is known that increased bulge in profiles produces increased buoyancy. In the case of the invention arises by the curvature introduced by the curvature of the tip in the lower part of a force in the plane of the water sports equipment and standing at right angles to the longitudinal axis of the fin, see drawing. 7

Entstehende Kräfte und Momente auf Reaktion 2:Emerging forces and moments on reaction 2:

Der durch die Verdrillung eingelenkte hintere Teil des Stabes und folglich der elastischen Hülle führt zu einer entgegen der Fahrrichtung gerichteten Widerstandskraft parallel zur Wassersportgerätlängsachse.The deflected by the twisted rear part of the rod and thus the elastic sheath leads to a counter to the direction of travel directed resistance parallel to the watersport device longitudinal axis.

Diese Kraft ist versetzt zur Längsachse des Wassersportgeräts und bildet einen Hebelarm zum Schwerpunkt des Wassersportgeräts, siehe Zeichnung 7.This force is offset from the longitudinal axis of the water sports equipment and forms a lever arm to the center of gravity of the water sports equipment, see Figure 7.

Folge der beiden Reaktionen:Consequence of the two reactions:

Die Summe der beiden eingeleiteten Kräfte durch die Reaktionen 1 und 2.bildet Kräfte und folglich ein verstärktes Drehmoment am hinteren Teil des Wassersportgeräts, siehe Zeichnung 8. Das heißt, es können engere Radien mit geringerem Kraftaufwand durchgeführt werden.The sum of the two introduced forces through the reactions 1 and 2. Forms forces and consequently an increased torque at the rear of the water sports equipment, see drawing 8. That is, it can be done tighter radii with less effort.

Die Fläche von konventionellen Finnen bleibt erhalten, um nach wie vor genügend Widerstand zu Stabilisierung zu gewährleisten.The area of conventional fins is maintained to provide sufficient resistance to stabilization.

Claims (14)

  1. Fin for water sports, in particular for surfing, comprising a base element (1) and a cover, which surrounds the base element, wherein at least two blade elements (2) are provided on the base element, wherein the respective blade element has at least a first and a second sub-region, and in each case the first sub-region of the blade element covers the base element and the blade elements are connected via the second sub-regions, characterized in that the blade elements (2) are connected to the base element (1) in a state in which they are suspended on the bearing surface (AF) provided in the distal region of the base element, and it is therefore possible in each case for the first sub-region of the blade elements to raise up from the base element (1).
  2. Fin according to Claim 1, characterized in that the respective blade element (2) has an inner region (3) and an outer region (4) with different moduli of elasticity and/or different levels of rigidity, preferably in that the modulus of elasticity or the rigidity of the inner region (3) is higher than the modulus of elasticity or the rigidity of the outer region (4).
  3. Fin according to either of Claims 1 and 2, characterized in that the base element (1) is of rigid design or has a higher modulus of elasticity or a higher rigidity than the blade elements (2).
  4. Fin according to one of Claims 1 to 3, characterized in that the blade elements (2) are adhesively bonded to the bearing surface of the base element (1).
  5. Fin according to one of Claims 1 to 4, characterized by the provision of a cover (5), preferably an elastic or flexible cover, which preferably encloses, preferably in a form-fitting manner, the respective blade element (2) and the base element.
  6. Fin according to Claim 5, characterized in that the modulus of elasticity or the rigidity of the cover is lower than that of the outer regions of the blades.
  7. Fin according to one of Claims 1 to 6, characterized in that the blade elements are connected in a form-fitting manner or adhesively bonded in one piece via the respective second sub-regions.
  8. Fin according to one of Claims 1 to 7, characterized in that a rod (6) is provided in the cover, at the rear end of the fin.
  9. Fin according to Claim 8, characterized in that the rod is integrated firmly in the distal sub-region by way of a blade element surrounding the base element, and is moveable preferably in the proximal sub-region of the cover.
  10. Fin according to either of Claims 8 and 9, characterized in that the proximal sub-region of the rod is enclosed by an elastic cover (5).
  11. Fin according to one of Claims 8 to 10, characterized in that the distal part of the rod is longer than the proximal part of the rod and preferably the distal part and the lower part of the rod is denoted by a point of rotation (7).
  12. Surfboard using a fin according to one of Claims 1 to 11.
  13. Surfboard according to Claim 12, characterized in that the base element of the fin is connected in a force-fitting manner in a direction perpendicular to the underside of the surfboard and the blade elements are arranged to the side of the base element, wherein part of the cover enclosing the blade elements is arranged in a freely movable manner, in particular at the end of the fin, so as to follow the movement of the tip of the fin.
  14. Surfboard according to Claim 13, characterized in that the movement of the freely moveable part of the cover is made possible by a rod provided in the cover.
EP13719377.7A 2012-04-23 2013-04-02 Fin for watersport and surfboard therefore Active EP2841331B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012008278 2012-04-23
PCT/EP2013/000970 WO2013159860A1 (en) 2012-04-23 2013-04-02 Fin for water sport and a surfboard for this purpose

Publications (2)

Publication Number Publication Date
EP2841331A1 EP2841331A1 (en) 2015-03-04
EP2841331B1 true EP2841331B1 (en) 2017-08-09

Family

ID=48227132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13719377.7A Active EP2841331B1 (en) 2012-04-23 2013-04-02 Fin for watersport and surfboard therefore

Country Status (4)

Country Link
US (1) US9505471B2 (en)
EP (1) EP2841331B1 (en)
AU (1) AU2013252141B2 (en)
WO (1) WO2013159860A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013252141B2 (en) * 2012-04-23 2017-02-23 Felix WUNNER Fin for water sport and a surfboard for this purpose
US20170283016A1 (en) * 2014-09-04 2017-10-05 Maya Surfboard fin having a rearwardly offset bearing surface
US10200522B2 (en) * 2015-03-14 2019-02-05 Waiv Technologies, Inc. Waterproof wireless communications and methods for water-based apparatus
US10106230B2 (en) * 2015-06-02 2018-10-23 Randal Richenberg Biomimic design stabilizing fin or keel for surface planing or submerged watercraft
US10546501B2 (en) 2016-04-11 2020-01-28 Magnus Berggren Method and apparatus for fleet management of equipment
WO2020176072A1 (en) 2019-02-25 2020-09-03 Mink Surf Llc Stabilizing water diffuser system for water sports board, water sports board with water diffuser system, and method of using the same
US10513318B1 (en) 2019-02-25 2019-12-24 Mink Surf Llc Stabilizing water diffuser system for water sports board, water sports board with water diffuser system, and method of using the same
USD977603S1 (en) * 2022-09-27 2023-02-07 Runwave Inc Surfboard tail fin

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3965514A (en) * 1975-01-30 1976-06-29 Shafer Arthur B Adjustable and/or removable fin for surfboards
US4325154A (en) * 1980-03-31 1982-04-20 Collum Jr William E Surfboard fin
US4904215A (en) * 1989-02-09 1990-02-27 Fiberfoam Inc. Surfboard fin retainer
US5032096A (en) * 1989-08-10 1991-07-16 Scott David A Laminar device and method for making same
DE9100911U1 (en) * 1991-01-26 1991-04-18 Dangschat, Holmer, Dipl.-Ing., 8225 Traunreut fin
US5242322A (en) * 1991-06-03 1993-09-07 John P. Chellemi Safety fin water sports boards
US5273472A (en) * 1991-11-06 1993-12-28 Surfco Hawaii Surfboard fins with flexible edges
US5306188A (en) * 1991-11-06 1994-04-26 Surfco Hawaii Method of applying a safety/maneuver enhancing fin to a surfboard
US5480331A (en) * 1995-04-17 1996-01-02 John R. Nickel Flexible surfboard fin
US5813890A (en) * 1996-09-12 1998-09-29 Benham; Roger A. Pivoting fin with elastic bias
US5951347A (en) * 1998-08-03 1999-09-14 Surfco Hawaii Watersport board fin construction
US6257941B1 (en) * 2000-04-19 2001-07-10 Rennie L. Rhynsburger Windsurfing board fin protector
USD445867S1 (en) * 2000-08-31 2001-07-31 Michael J. Reudink Watersport board fin cover
US6394865B1 (en) * 2001-08-08 2002-05-28 Robert Anthony Arzadon Surfboard fin cover
US6918806B2 (en) * 2002-12-19 2005-07-19 Surfco Hawaii Safety fin over mold system and safety fin sleeve for surfboard and other recreational vehicles
US6896570B1 (en) * 2004-03-04 2005-05-24 O'keefe Thomas L. Fin for a watersport board
AU2005316366B2 (en) 2004-12-17 2012-06-14 Kirby J. Mead Low-Drag Fin and Foil System for Surfboards
EE200700016A (en) * 2007-04-11 2008-12-15 Tartu �likool A means of improving the handling and stability of a windsurf or similar craft
US8465334B2 (en) * 2007-12-14 2013-06-18 Origin Fin Systems Pty Ltd. Fin box
US8083560B2 (en) * 2009-06-05 2011-12-27 Foulke Robert W Pivotal surfboard fin assembly
US8408958B2 (en) * 2010-01-08 2013-04-02 Roger A. Benham Pivoting fin with securement
US8556670B2 (en) * 2010-08-13 2013-10-15 Edward King Schultz, III Slidable surfboard fin
AU2013252141B2 (en) * 2012-04-23 2017-02-23 Felix WUNNER Fin for water sport and a surfboard for this purpose
US9045202B1 (en) * 2014-04-30 2015-06-02 Data Fin Corporation Apparatus and system for detecting and sharing characteristics of a ride on a watercraft

Also Published As

Publication number Publication date
WO2013159860A1 (en) 2013-10-31
US9505471B2 (en) 2016-11-29
US20150191226A1 (en) 2015-07-09
AU2013252141B2 (en) 2017-02-23
AU2013252141A1 (en) 2014-12-18
EP2841331A1 (en) 2015-03-04

Similar Documents

Publication Publication Date Title
EP2841331B1 (en) Fin for watersport and surfboard therefore
DE60009857T2 (en) CORE FOR SLIDING BOARD
EP1909930B1 (en) Ski or snowboard having improved torsional rigidity
DE202019102546U1 (en) Handlebar stem and stem system
DE102008022422A1 (en) Flexible aircraft airfoil, has bracket fastened to rear wall, and wing rear edge moving upwards or downwards to create profile change by pulling and pushing of lever that is connected with rotating device in rigid manner
DE19613673C2 (en) Profile body for the stabilization of wind-driven water vehicles, in particular fin or keel
DE2731266C3 (en) Sailboard with fin
DE102008024604B4 (en) bicycle frame
DE2900908C3 (en) Rig for sailing boards
DE102014222135B4 (en) Fork play compensator for a vehicle
DE202009013093U1 (en) Boom for a sailboard
DE102007033687B4 (en) Book with a stand-up device
DE202011001173U1 (en) Ski with asymmetrical characteristics
EP3247621A1 (en) Sailboot
EP1834859A1 (en) Input device for an electronic steering system of a virtual or real vehicle
DE3914453A1 (en) MAST FOR A SAILING BOARD
EP2195798B1 (en) Apparatus for learning to drive horse-drawn carriages
DE3437630C2 (en)
DE102007034445A1 (en) Adjustable sail for tube kite, has two inflatable ribs that are held at distance to each other by reinforcement unit which is arranged in middle area of upper sail, and inflatable hose
EP1787904A2 (en) High-load suspended rudder
DE602005002161T2 (en) helicopter
DE202007017450U1 (en) High efficiency rudder for ships
DE2009896B2 (en) Compensation converter
WO2003080434A1 (en) Tubekite with an improved aerodynamic profile
DE212011100097U1 (en) Hand-operated work machine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20141120

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160527

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTC Intention to grant announced (deleted)
INTG Intention to grant announced

Effective date: 20161116

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 916486

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013008012

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170809

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171109

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171209

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171110

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171109

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013008012

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20180511

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180430

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180402

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180430

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180402

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 916486

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180402

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180402

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502013008012

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B63B0035790000

Ipc: B63B0032000000

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130402

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170809

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170809

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230424

Year of fee payment: 11

Ref country code: DE

Payment date: 20230420

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230419

Year of fee payment: 11