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DE3016927A1 - Nozzle-type surf-board stabilising fin - consists of low-profile convergent nozzle with dorsal connecting plate modifiable to suit board - Google Patents

Nozzle-type surf-board stabilising fin - consists of low-profile convergent nozzle with dorsal connecting plate modifiable to suit board

Info

Publication number
DE3016927A1
DE3016927A1 DE19803016927 DE3016927A DE3016927A1 DE 3016927 A1 DE3016927 A1 DE 3016927A1 DE 19803016927 DE19803016927 DE 19803016927 DE 3016927 A DE3016927 A DE 3016927A DE 3016927 A1 DE3016927 A1 DE 3016927A1
Authority
DE
Germany
Prior art keywords
nozzle
board
fin
modifiable
connecting plate
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.)
Withdrawn
Application number
DE19803016927
Other languages
German (de)
Inventor
Armin Dipl.-Ing. Gohritz
Helmut Dipl.-Ing. 5100 Aachen Leube
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.)
GOHRITZ ARMIN
Original Assignee
GOHRITZ ARMIN
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 GOHRITZ ARMIN filed Critical GOHRITZ ARMIN
Priority to DE19803016927 priority Critical patent/DE3016927A1/en
Publication of DE3016927A1 publication Critical patent/DE3016927A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00Hulls characterised by their structure or component parts
    • B63B3/14Hull parts
    • B63B3/38Keels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00Water sports boards; Accessories therefor
    • B63B32/60Board appendages, e.g. fins, hydrofoils or centre boards
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B2035/009Wind propelled vessels comprising arrangements, installations or devices specially adapted therefor, other than wind propulsion arrangements, installations, or devices, such as sails, running rigging, or the like, and other than sailboards or the like or related equipment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Nozzles (AREA)

Abstract

The nozzle-type stabilising fin is primarily designed for use on surfboards. It comprises a convergent nozzle (1,2) with a profile which is substantially lower than that of a conventional fin and a dorsal connecting-plate (3) which is modified as necessary to fit the various board layouts. The device can also be used for sailing boats, where it is embodied in the rudder to improve manoeuvrability under all sailing conditions.

Description

Titel: Düsenfinne Title: Nozzle Fin

Zweck: Bei Surfbrettern leidet die Manövrierfähigkeit bei Wenden und Halsen unter dem D'rehwiderstand der starren Finne. Um die,ManövreXirfähigkeit zu verbessern, ist die Finnenfläche zu ve-rringern.Purpose: With surfboards, maneuverability suffers when turning and Jibe under the torsional resistance of the rigid fin. In order to increase the maneuverability improve, the fin area is to be reduced.

Verbunden damit ist aber eine Verminderung der stabilisierenden Wirkung für die Geradeausfahrt. Linked to this, however, is a reduction in the stabilizing effect for driving straight ahead.

Zweck der Düsenfinne ist zum einen die Verbesserung der Manövrierfähigkeit durch'die stark verringerte Seitenfläche.Die dadurch verminderte Seitenführungskraft bei Geradeausfahrt wird durch die Beschleunigung des Wasserstrahls in der Düsenfinne ausgeglichen. Entsprechend der Fahrgeschwindigkeit des Surfbrettes wird automatisch die notwendige höhere Stabilität bei Geradeausfahrt erzielt. The purpose of the nozzle fin is, on the one hand, to improve maneuverability due to the greatly reduced side surface, resulting in reduced cornering force when driving straight ahead is due to the acceleration of the water jet in the nozzle fin balanced. According to the driving speed of the surfboard it will be automatic achieved the necessary higher stability when driving straight ahead.

Stand der Technik: Es ist bekannt, daß zur Erfüllung der Geradeausfahrt bei Surfbrettern mit Schwert eine W Finne notwendig ist. Entsprechend diesem Stand, werden die Surfbretter auch nur mit starren Finnen ausgesta-ttet Wri tlK des Standes der Technik: Die Nachteile der-herkömmlichen Lösung sind unter Abschnitt "Zweck" sohon beschrieben.Prior art: It is known that to meet straight travel A W fin is necessary for surfboards with a sword. According to this state, the surfboards are also only equipped with rigid fins Wri tlK of the stand of technology: The disadvantages of the conventional solution are under section "Purpose" sohon described.

Aufgabe: Der Erfindung liegt die Aufgabe zugrunde, die Manöurierfähigkeit bei kleiner Geschwindigkeit zu erhöhen, und die Stabilität in- Abhängigkeit von der Fahrgeschwindigkeit, insbesondere bei hoher Geschwindigkeit zu verbessern.Task: The invention is based on the task of maneuvering ability to increase at low speed, and the stability as a function of improve the driving speed, especially at high speed.

Lösung: Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß eine extreme Verminderung der Seitenfläche gegenüber der gebräuchlichen starren Finne erfolgt.Solution: This object is achieved according to the invention in that a extreme reduction of the side surface compared to the common rigid fin he follows.

Stabilitätserhöhung durch Beschleunigung des Wasserstrahles mit einer für diesen Geschwindigkeitsbereich berechnete und gestaltete Düsenform. Increased stability by accelerating the water jet with a Nozzle shape calculated and designed for this speed range.

Weitere Ausgestaltung der Erfindung: 1) Es besteht die Möglichkeit, eine Beschleunigung und somit eine Stabilitätserhöhung dadurch zu erreichen, daß auf die Finne verzichtet wird und eine der Erfindung entsprechende Anordnun(z im oder am Schwert vorzusehen ist. Auf die Finne kann dann verzichtet werden, wodurch eine noch höhere Manöurierfähigkeit erreicht wird.Further embodiment of the invention: 1) It is possible to to achieve an acceleration and thus an increase in stability in that the fin is dispensed with and an arrangement corresponding to the invention (z in or to be provided on the sword. The fin can then be dispensed with, which means an even higher maneuverability is achieved.

2) Im Unterschied zu Surfbrettern,ist bei Segelbooten die Anordnung mast - Schwert (Kiel) starr und die Drehbewegung wird durch das Ruder (bewegliche Finne) eingeleitet. Desweiteren erfüllt das Ruder die gleichen stabilisierenden Aufgaben wie beim Surfbrett. Durch eine entsprechende düsenförmige Ausgestaltung des Ruders wird hier bei gleicher Seitenfläche eine erhöhte Manövrierfähigkeit durch die Beschleunigung des Wasserstrahles erzielt.2) In contrast to surfboards, the arrangement on sailboats is mast - sword (keel) rigid and the rotary movement is controlled by the rudder (movable Finn) initiated. Furthermore, the rudder fulfills the same stabilizing functions Tasks like a surfboard. By means of a corresponding nozzle-shaped design of the rudder is increased maneuverability with the same side surface the acceleration of the water jet achieved.

Erzielbare Vorteile: Erhöhte Manövrierbarkeit.Achievable benefits: Increased maneuverability.

Erhöhte Stabilität bei Geradeausfahrt.Increased stability when driving straight ahead.

Beschreibung: Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.Description: An embodiment of the invention is shown in the drawing and is described in more detail below.

Es zeigen Fig. 1 : die Positionierung der Finnendüse an einem Surfbrett. 1 shows the positioning of the fin nozzle on a surfboard.

Fig. 2: den Aufbau und die Wirkungsweise der Finnendüse.Fig. 2: the structure and mode of operation of the fin nozzle.

Einzelheit 1 gibt den Süseneinlauf mit der notwendigen Querschnittsverengung wieder. Detail 1 shows the inlet inlet with the necessary narrowing of the cross-section again.

Der Düsenauslauf ist in Einzelheit 2 gezeigt. The nozzle outlet is shown in detail 2.

Zur Befestigung der Düsenfinne an Surfbrettern verschiedenen typs, dient das Einsteckprofil 3, daß dem jeweiligen Surfbrettyp anzupassen ist. For attaching the nozzle fin to different types of surfboards, the plug-in profile 3 is used, which is to be adapted to the respective type of surfboard.

Claims (1)

Patentanspruch Oberbegriff: Düsenfinne für Surfbretter, Kennzeichnender Teil: dadurch gekennzeichnet, daß die Manövrierfähiykit durch verringerte Seitenfläche verbessert wird, und die Stabilität bei Geradeausfahrt durch die Düsenwirkung in Abhängigkeit von der Geschwindigkeit erhöht wird. Claim preamble: Nozzle fin for surfboards, characterizing device Part: characterized in that the maneuverability by reduced side area is improved, and the stability when driving straight ahead due to the nozzle effect in Depending on the speed is increased. Oberbegriff des Unteranspruchs: Ruderdüse für Segelboote, Kennzeichnender Teil des Unteranspruchs: dadurch gekennzeichnet, daß die lßanövrierfähigkeit durch eine im Ruder angeordnete Düse stark verbessert wir.Generic term of the sub-claim: Rudder nozzle for sailboats, characterizing device Part of the dependent claim: characterized in that the maneuverability through a nozzle arranged in the rudder has been greatly improved.
DE19803016927 1980-05-02 1980-05-02 Nozzle-type surf-board stabilising fin - consists of low-profile convergent nozzle with dorsal connecting plate modifiable to suit board Withdrawn DE3016927A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803016927 DE3016927A1 (en) 1980-05-02 1980-05-02 Nozzle-type surf-board stabilising fin - consists of low-profile convergent nozzle with dorsal connecting plate modifiable to suit board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803016927 DE3016927A1 (en) 1980-05-02 1980-05-02 Nozzle-type surf-board stabilising fin - consists of low-profile convergent nozzle with dorsal connecting plate modifiable to suit board

Publications (1)

Publication Number Publication Date
DE3016927A1 true DE3016927A1 (en) 1981-11-05

Family

ID=6101506

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803016927 Withdrawn DE3016927A1 (en) 1980-05-02 1980-05-02 Nozzle-type surf-board stabilising fin - consists of low-profile convergent nozzle with dorsal connecting plate modifiable to suit board

Country Status (1)

Country Link
DE (1) DE3016927A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001060690A1 (en) * 2000-02-18 2001-08-23 Steve Daniel Burns Hydrodynamic device
US9688365B2 (en) 2012-07-09 2017-06-27 Fin Control Systems Pty Limited Fin plug for water craft
US9957021B2 (en) 2012-11-14 2018-05-01 Fin Control Systems Pty. Limited Fin plug for a water craft

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001060690A1 (en) * 2000-02-18 2001-08-23 Steve Daniel Burns Hydrodynamic device
US6739925B2 (en) 2000-02-18 2004-05-25 Steve Daniel Burns Hydrodynamic device
EP1272388A4 (en) * 2000-02-18 2005-07-13 Steve Daniel Burns Hydrodynamic device
US9688365B2 (en) 2012-07-09 2017-06-27 Fin Control Systems Pty Limited Fin plug for water craft
US9862467B2 (en) 2012-07-09 2018-01-09 Fin Control Systems Pty Limited Securing mechanism for water craft fin
US10377452B2 (en) 2012-07-09 2019-08-13 Fin Control Systems Pty Limited Fin plug for water craft
US9957021B2 (en) 2012-11-14 2018-05-01 Fin Control Systems Pty. Limited Fin plug for a water craft

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