EP0018625B1 - Foot of a mast for a sailboard - Google Patents

Foot of a mast for a sailboard Download PDF

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Publication number
EP0018625B1
EP0018625B1 EP80102313A EP80102313A EP0018625B1 EP 0018625 B1 EP0018625 B1 EP 0018625B1 EP 80102313 A EP80102313 A EP 80102313A EP 80102313 A EP80102313 A EP 80102313A EP 0018625 B1 EP0018625 B1 EP 0018625B1
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EP
European Patent Office
Prior art keywords
mast base
mast
clamping nut
locking
sleeve
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.)
Expired
Application number
EP80102313A
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German (de)
French (fr)
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EP0018625A1 (en
Inventor
Ernst Drexler
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AKUTEC Angewandte Kunststofftechnik GmbH
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AKUTEC Angewandte Kunststofftechnik GmbH
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Application filed by AKUTEC Angewandte Kunststofftechnik GmbH filed Critical AKUTEC Angewandte Kunststofftechnik GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B15/02—Staying of masts or of other superstructures
    • 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
    • B63B32/68—Mast foot attachments, e.g. mast foot rails

Definitions

  • the invention relates to a mast foot for a sail board, with which the mast is connected to a universal joint, which is releasably locked in a sleeve or an opening of the board hull and has the locking members which snap into corresponding recesses in the sleeve or the opening of the board hull , wherein the latching members are designed as projecting latching webs at the lower end of spring-elastic latching tongues which extend in the insertion direction on the mast base and are separated from one another by axial slots.
  • Such a mast foot is known from FR-A-2 375 086.
  • the spring-elastic locking tongues hold the mast base in the sail board with a constant holding force. Since the mast foot must also be able to be pulled out of the sleeve manually, this holding force may only be of a high level and may not be sufficient to hold the mast firmly during sailing maneuvers with strong winds.
  • Another mast foot for a sailing board has become known, for example, from DE-U-7 709 045, one or more detent formed by a spring-loaded ball being provided in the mast foot, which latches into an annular groove in the sleeve within the board hull.
  • the spring load on the ball can be adjusted using an adjusting screw, which is only accessible when the mast base is not in use.
  • This known latching of the mast foot of a sail board by means of pretensioned locking balls creates a good positive connection of the mast foot with the sail board, but has the disadvantage that the force required for latching the mast foot into the sleeve is the same as that of the mast foot, for example, during hard sailing maneuvers Loosen the mast base with the mast from the sail board.
  • This has the disadvantage that the force set by the spring loading of the locking balls is either too small to hold the mast base in hard sailing maneuvers or too large to be able to engage even under difficult conditions.
  • mast anchors have become known from DE-U-7 707 496 and 7634959, in which a variable non-positive mounting within the sleeve is to be achieved in that rubber-elastic parts are clamped between the mast base and sleeve.
  • this is done by a rubber cylinder that is compressed by axial screwing.
  • a rubber ring is provided on the cylindrical mast base, which can optionally be blasted into notches of different depths in the mast base to adjust the jamming force.
  • Such jamming brackets of mast feet are disadvantageous, since the clamping effect is dependent on external conditions such as temperature, moisture, penetrated dirt or salinization when using the sailing board in salt water waters.
  • the invention has for its object to develop a mast base of the type mentioned so that the latching forces can be adjusted from the outside given good positive locking of the mast base, nevertheless the construction of the mast base is simple and insensitive to external influences.
  • a second embodiment of the invention is characterized in claim 8.
  • the toggle body is fixed on the adjusting rod and the adjusting ring is axially displaceable together with the adjusting rod and the toggle body relative to the cylinder body forming the mast base.
  • the adjustment of the locking forces is based on influencing the spring-elastic effective length of the locking tongues.
  • the mast foot designated as a whole by 1 is inserted into a sleeve 2, which is arranged inside the hull 3 of a sailing board.
  • the sleeve 2 shown for example is closed at its lower end by a plate 4 screwed to the sleeve body and is held in the fuselage 3 by a flange 5 on the plate 4 and an upper flange 6 on the sleeve body 2.
  • a recess 7 is provided within the sleeve 2, into which engagement webs described below engage.
  • the mast base designated overall by 1, consists of an essentially cylindrical plastic body 8 which, in its lower region intended for receiving within the sleeve 2, has holding tongues 9 with latching webs 10 projecting outwards at their lower ends.
  • the four latching tongues 9 present in the embodiment shown are separated from one another by axial slots 11.
  • a shoulder 12 of the cylinder body 8 rests on the upper edge of the sleeve 2 and the locking webs 10 protrude into the recess 7.
  • the cylinder body 8 carries an adjusting ring 13 directly above the shoulder 12 as a handle, which, according to FIG.
  • a star-shaped control rod 16 is provided in a rotationally fixed but displaceable manner in the axial direction.
  • the upper region of the mast base 1 or of the cylinder body 8 is not described in detail, since the type of cardan-jointed connection of the mast base to the mast is not important for the invention.
  • the toggle body 17 is square in cross section with flattened corners.
  • the mast base can be in the sleeve 2 are used, only the spring forces of the locking tongues 9 to be overcome for the insertion of the locking webs 10 through the sleeve 2 up to the recess 7.
  • the locking tongues 9 give inwards, their spring hardness being determined by the preselectable axial position (height position in FIG. 1) of the toggle body 17 on the adjusting rod 16.
  • the locking tongues 9 can only spring so far inwards until they rest on the side surfaces 19 of the toggle body 17, so that only the remaining free length of the tongues 9 is then considered for resilient yielding.

Description

Die Erfindung bezieht sich auf einen Mastfuß für ein Segelbrett, mit welchem der Mast kardangelenkig verbunden ist, welcher in einer Hülse oder einer Öffnung des Brettrumpfes lösbar verrastet ist und der Rastglieder aufweist, die in entsprechende Ausnehmungen in der Hülse bzw. der Öffnung des Brettrumpfes einrasten, wobei die Rastglieder als vorspringende Raststege an dem unteren Ende von sich in Einsteckrichtung am Mastfuß erstreckenden und durch Axialschlitze voneinander getrennten federelastischen Rastzungen ausgebildet sind.The invention relates to a mast foot for a sail board, with which the mast is connected to a universal joint, which is releasably locked in a sleeve or an opening of the board hull and has the locking members which snap into corresponding recesses in the sleeve or the opening of the board hull , wherein the latching members are designed as projecting latching webs at the lower end of spring-elastic latching tongues which extend in the insertion direction on the mast base and are separated from one another by axial slots.

Ein derartiger Mastfuß ist aus der FR-A-2 375 086 bekannt. Die federelastischen Rastzungen halten den Mastfuß im Segelbrett mit einer konstanten Haltekraft fest. Da der Mastfuß auch manuell aus der Hülse herausziehbar sein muß, darf diese Haltekraft nur begrenzt hoch sein und kann bei Segelmanövern mit starkem Wind nicht ausreichend sein, um den Mast festzuhalten.Such a mast foot is known from FR-A-2 375 086. The spring-elastic locking tongues hold the mast base in the sail board with a constant holding force. Since the mast foot must also be able to be pulled out of the sleeve manually, this holding force may only be of a high level and may not be sufficient to hold the mast firmly during sailing maneuvers with strong winds.

Ein weiterer Mastfuß für ein Segelbrett ist beispielsweise aus der DE-U-7 709 045 bekanntgeworden, wobei in dem Mastfuß ein oder mehrere, durch eine federbelastete Kugel gebildete Raste vorgesehen ist, welche in eine Ringnut in der Hülse innerhalb des Brettrumpfes einrastet. Die Federbelastung der Kugel ist durch eine Stellschraube einstellbar, welche nur bei nicht eingesetztem Mastfuß zugänglich ist. Diese bekannte Verrastung des Mastfußes eines Segelbrettes mittels vorgespannter Rastkugeln schafft eine gute formschlüssige Verbindung des Mastfußes mit dem Segelbrett, hat jedoch den Nachteil, daß die für das Einrasten des Mastfußes in der Hülse erforderliche Kraft die gleiche ist, welche der Mastfuß beispielsweise bei harten Segelmanövern einem Lösen des Mastfußes mit Mast vom Segelbrett entgegensetzt. Dies hat den Nachteil, daß die durch die Federbelastung der Rastkugeln eingestellte Kraft entweder zu klein ist, um den Mastfuß bei harten Segelmanövern festzuhalten oder zu groß ist, um auch unter schwierigen Bedingungen das Einrasten vornehmen zu können.Another mast foot for a sailing board has become known, for example, from DE-U-7 709 045, one or more detent formed by a spring-loaded ball being provided in the mast foot, which latches into an annular groove in the sleeve within the board hull. The spring load on the ball can be adjusted using an adjusting screw, which is only accessible when the mast base is not in use. This known latching of the mast foot of a sail board by means of pretensioned locking balls creates a good positive connection of the mast foot with the sail board, but has the disadvantage that the force required for latching the mast foot into the sleeve is the same as that of the mast foot, for example, during hard sailing maneuvers Loosen the mast base with the mast from the sail board. This has the disadvantage that the force set by the spring loading of the locking balls is either too small to hold the mast base in hard sailing maneuvers or too large to be able to engage even under difficult conditions.

Die gleichen Nachteile gelten für die aus dem DE-U-7 803 617 bekanntgewordene Mastverankerung für Windsurfing-Bretter. Bei dieser Mastverankerung ist im zylindrischen Mastfuß eine Ringnut vorgesehen, in welche eine Stahlfeder innerhalb der Hülse im Brettrumpf einrastet.The same disadvantages apply to the mast anchoring for windsurfing boards which has become known from DE-U-7 803 617. With this mast anchoring, an annular groove is provided in the cylindrical mast base, into which a steel spring engages within the sleeve in the board hull.

Andererseits sind aus den DE-U-7 707 496 und 7634959 Mastverankerungen bekanntgeworden, bei denen eine veränderliche kraftschlüssige Halterung innerhalb der Hülse dadurch erreicht werden soll, daß gummielastische Teile zwischen Mastfuß und Hülse verklemmt werden. Bei dem erstgenannten Gbm geschieht dies durch einen durch axiale Verschraubung gestauchten Gummizylinder. Beim zweitgenannten Gbm ist am zylindrischen Mastfuß ein Gummiring vorgesehen, welcher zur Einstellung der Verklemmungskraft in verschieden tiefe Einkerbungen des Mastfußes wahlweise eingesprengt werden kann. Solche verklemmende Halterungen von Mastfüßen sind nachteilig, da die Klemmwirkung von äußeren Bedingungen, wie Temperatur, Feuchtigkeit, eingedrungenem Schmutz oder Versalzung bei Benutzung des Segelbrettes in Salzwasser-Gewässern abhängig ist.On the other hand, mast anchors have become known from DE-U-7 707 496 and 7634959, in which a variable non-positive mounting within the sleeve is to be achieved in that rubber-elastic parts are clamped between the mast base and sleeve. In the case of the first-mentioned Gbm, this is done by a rubber cylinder that is compressed by axial screwing. In the case of the second-mentioned Gbm, a rubber ring is provided on the cylindrical mast base, which can optionally be blasted into notches of different depths in the mast base to adjust the jamming force. Such jamming brackets of mast feet are disadvantageous, since the clamping effect is dependent on external conditions such as temperature, moisture, penetrated dirt or salinization when using the sailing board in salt water waters.

Der Erfindung liegt die Aufgabe zugrunde, einen Mastfuß der eingangs genannten Art so weiterzubilden, daß bei jederzeit gegebener guter formschlüssiger Verrastung des Mastfußes die Rastkräfte von außen einstellbar sind, trotzdem die Konstruktion des Mastfußes einfach und unempfindlich gegen äußere Einflüsse ist.The invention has for its object to develop a mast base of the type mentioned so that the latching forces can be adjusted from the outside given good positive locking of the mast base, nevertheless the construction of the mast base is simple and insensitive to external influences.

Diese Aufgabe wird erfindungsgemäß bei einem Mastfuß der eingangs genannten Art dadurch gelöst, daß die Federelastizität der Rastzungen durch einen innerhalb des Mastfußes zwischen den Rastzungen angeordneten Knebelkörper bei eingesetztem Mastfuß von außen mittels einer Handhabe einstellbar ist.This object is achieved in a mast foot of the type mentioned in that the resilience of the locking tongues is adjustable by a handle inside the mast base between the locking tongues when the mast base is inserted by means of a handle.

Durch diese Ausbildung ist eine formschlüssige, von außen einstellbare Verrastung geschaffen, bei der durch die Einstellbarkeit der federelastischen Rastzungen durch eine Handhabe von außen ein leichtes Einsetzen und Herausnehmen des Mastfußes möglich ist und der Mastfuß bei der Benutzung des Segelbrettes auch unter widrigen Bedingungen mit genügend großer Kraft gehalten und verankert bleibt. Mit anderen Worten werden für den Benutzungszustand des Mastfußes die Rastzungen durch den Knebelkörper praktisch verriegelt.With this design, a form-fitting, externally adjustable latching is created, in which the adjustability of the spring-elastic latching tongues makes it easy to insert and remove the mast base from outside, and the mast base is sufficiently large when the sailboard is used, even under adverse conditions Strength held and anchored. In other words, the latching tongues are practically locked by the toggle body for the state of use of the mast base.

Zwar sind federelastische Rastzungen an dem Mastfuß eines durch praktische Verwirklichung bekanntgewordenen Segelbrettes bereits bekanntgeworden. Verschieden starke Rastkräfte für das Einsetzen des Mastfußes bzw. für dessen Halten während der Benutzung werden jedoch dadurch erzeugt, daß die Raststege an den Rastzungen und die zugeordneten Anlageflächen in den Ausnehmungen der Hülse abwechselnd verschieden geformt sind, so daß je nach Drehstellung des Mastfußes gegenüber der Hülse dem Ausrasten ein größerer oder kleinerer Widerstand entgegengesetzt wird.Spring-elastic latching tongues on the mast base of a sail board that has become known through practical implementation have already become known. Different strong locking forces for the insertion of the mast foot or for holding it during use are generated in that the locking webs on the locking tongues and the associated contact surfaces in the recesses of the sleeve are shaped differently, so that depending on the rotational position of the mast foot relative to the Sleeve the disengagement a greater or lesser resistance is opposed.

Zweckmäßige Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet. Dabei hat die drehfeste aber axial verschiebbare Anordnung des Knebelkörpers auf der Stellstange nach Anspruch 6 für die erste Ausführungsform der Erfindung mit um einen begrenzten Winkel drehbarem Stellring den besonderen Vorteil, daß durch Einstellung der axialen Stellung des Knebelkörpers auf der Stellstange der Einstellbereich für die Rastkräfte vorgewählt werden kann. Die federelastisch wirksame Länge der Rastzungen wird durch die axiale Stellung des Knebelkörpers verändert.Advantageous embodiments of the invention are characterized in the subclaims. The rotatable but axially displaceable arrangement of the toggle body on the control rod according to claim 6 for the first embodiment of the invention with a rotatable by a limited angle adjusting ring has the particular advantage that the adjustment range for the latching forces is preselected by adjusting the axial position of the toggle body can be. The spring-elastic effective length of the locking tongues is changed by the axial position of the toggle body.

Eine zweite Ausführungsform der Erfindung ist im Anspruch 8 gekennzeichnet. Dabei ist der Knebelkörper fest auf der Stellstange angeordnet und der Stellring ist um einen Weg axial zusammen mit der Stellstange und dem Knebelkörper gegenüber dem den Mastfuß bildenden Zylinderkörper verschiebbar. Hierbei beruht also die Verstellung der Rastkräfte durch Beeinflussung der federelastisch wirksamen Länge der Rastzungen.A second embodiment of the invention is characterized in claim 8. The toggle body is fixed on the adjusting rod and the adjusting ring is axially displaceable together with the adjusting rod and the toggle body relative to the cylinder body forming the mast base. Here, the adjustment of the locking forces is based on influencing the spring-elastic effective length of the locking tongues.

Eine beispielsweise Ausführungsform der Erfindung wird im folgenden anhand der Zeichnungen näher beschrieben. Es zeigt

  • Fig. 1 in Ansicht und teilweise im Schnitt einen Mastfuß innerhalb eines Brettrumpfes;
  • Fig. 2 eine Schnittansicht entlang der Linie 11-11 in Fig. 1;
  • Fig. 3 eine Schnittansicht entlang der Linie 111-111 in Fig. 1 und
  • Fig. 4 die Schnittansicht nach Fig. mit dem Knebelkörper in Verriegelungsstellung.
An example embodiment of the invention is described below with reference to the drawings. It shows
  • Figure 1 in view and partially in section a mast foot within a board hull.
  • Fig. 2 is a sectional view taken along the line 11-11 in Fig. 1;
  • Fig. 3 is a sectional view taken along the line 111-111 in Fig. 1 and
  • Fig. 4 shows the sectional view of FIG. With the gag body in the locked position.

Gemäß Fig. 1 ist der insgesamt mit 1 bezeichnete Mastfuß in eine Hülse 2 eingesetzt, welche innerhalb des Rumpfes 3 eines Segelbrettes angeordnet ist. Die beispielsweise dargestellte Hülse 2 ist an ihrem unteren Ende durch eine mit dem Hülsenkörper verschraubte Platte 4 verschlossen und wird durch einen Flansch 5 an der Platte 4 sowie einen oberen Flansch 6 am Hülsenkörper 2 im Rumpf 3 gehalten. Innerhalb der Hülse 2 ist eine Ausnehmung 7 vorgesehen, in welche unten beschriebene Raststege eingreifen.According to FIG. 1, the mast foot, designated as a whole by 1, is inserted into a sleeve 2, which is arranged inside the hull 3 of a sailing board. The sleeve 2 shown for example is closed at its lower end by a plate 4 screwed to the sleeve body and is held in the fuselage 3 by a flange 5 on the plate 4 and an upper flange 6 on the sleeve body 2. A recess 7 is provided within the sleeve 2, into which engagement webs described below engage.

Der insgesamt mit 1 bezeichnete Mastfuß besteht aus einem im wesentlichen zylindrischen Kunststoffkörper 8, welcher in seinem unteren zur Aufnahme innerhalb der Hülse 2 bestimmten Bereich Haltezungen 9 mit an deren unteren Enden nach außen vorspringenden Raststegen 10 aufweist. Die bei der gezeigten Ausführungsform vorhandenen vier Rastzungen 9 sind durch Axialschlitze 11 voneinander getrennt. Im gezeigten eingesetzten Zustand des Mastfußes 1 in die Hülse 2 liegt ein Ansatz 12 des Zylinderkörpers 8 auf der Oberkante der Hülse 2 auf und die Raststege 10 ragen in die Ausnehmung 7. Der Zylinderkörper 8 trägt unmittelbar oberhalb des Ansatzes 12 als Handhabe einen Stellring 13, welcher gemäß Fig. 2 über einen Stift 14 über sich über einen begrenzten Umfangsbereich des Zylinderkörpers 8 erstreckende Schlitze 15 gegenüber dem Zylinderkörper 8 drehbar gehalten ist. Die Länge der Schlitze 15 bestimmt den zulässigen Drehwinkelbereich für den Stellring 13. Weiter ist an dem Stift 14 innerhalb des Zylinderkörpers 8 eine Stellstange 16 befestigt, welche durch den Zylinderkörper 8 nach unten ragt und etwa die Länge der Haltezungen 9 hat. Auf der im unteren Bereich, wie aus Fig. 3 und 4 ersichtlich, sternförmig ausgebildeten Stellstange 16 ist drehfest aber in axialer Richtung verschiebbar ein Knebelkörper 17 vorgesehen.The mast base, designated overall by 1, consists of an essentially cylindrical plastic body 8 which, in its lower region intended for receiving within the sleeve 2, has holding tongues 9 with latching webs 10 projecting outwards at their lower ends. The four latching tongues 9 present in the embodiment shown are separated from one another by axial slots 11. In the shown inserted state of the mast foot 1 in the sleeve 2, a shoulder 12 of the cylinder body 8 rests on the upper edge of the sleeve 2 and the locking webs 10 protrude into the recess 7. The cylinder body 8 carries an adjusting ring 13 directly above the shoulder 12 as a handle, which, according to FIG. 2, is rotatably held relative to the cylinder body 8 via a pin 14 via slots 15 which extend over a limited circumferential region of the cylinder body 8. The length of the slots 15 determines the permissible angle of rotation range for the collar 13. Furthermore, an actuating rod 16 is fastened to the pin 14 within the cylinder body 8, which extends downward through the cylinder body 8 and has approximately the length of the holding tongues 9. On the lower part, as can be seen from FIGS. 3 and 4, a star-shaped control rod 16 is provided in a rotationally fixed but displaceable manner in the axial direction.

Der obere Bereich des Mastfußes 1 bzw. des Zylinderkörpers 8 wird nicht näher beschrieben, da die Art der kardangelenkigen Verbindung des Mastfußes mit dem Mast für die Erfindung nicht von Bedeutung ist.The upper region of the mast base 1 or of the cylinder body 8 is not described in detail, since the type of cardan-jointed connection of the mast base to the mast is not important for the invention.

Wie aus den Fig. 3 und 4 ersichtlich, ist der Knebelkörper 17 im Querschnitt quadratisch mit abgeflachten Ecken ausgebildet.3 and 4, the toggle body 17 is square in cross section with flattened corners.

In einer ersten Drehstellung des Knebelkörpers, eingestellt durch die Handhabe 13 über die Stellstange 16, liegen die Ecken bzw. Kanten 18, welche insgesamt gegenüber dem Knebelkörper 17 auch als Erhebungen bezeichnet werden können, gegenüber bzw. in den Axialschlitzen 11. Der Mastfuß kann in die Hülse 2 eingesetzt werden, wobei für das Einführen der Raststege 10 durch die Hülse 2 bis zu der Ausnehmung 7 nur die Federkräfte der Rastzungen 9 zu überwinden sind. Die Rastzungen 9 geben nach innen nach, wobei ihre Federhärte durch die vorwählbare axiale Stellung (Höhenstellung in Fig. 1) des Knebelkörpers 17 auf der Stellstange 16 bestimmt wird. Die Rastzungen 9 können nur so weit nach innen federn, bis sie an den Seitenflächen 19 des Knebelkörpers 17 anliegen, so daß dann nur noch die verbleibende freie Länge der Zungen 9 für ein federndes Nachgeben in Betracht kommt.In a first rotational position of the toggle body, set by the handle 13 via the actuating rod 16, the corners or edges 18, which can also be referred to as elevations with respect to the toggle body 17, lie opposite or in the axial slots 11. The mast base can be in the sleeve 2 are used, only the spring forces of the locking tongues 9 to be overcome for the insertion of the locking webs 10 through the sleeve 2 up to the recess 7. The locking tongues 9 give inwards, their spring hardness being determined by the preselectable axial position (height position in FIG. 1) of the toggle body 17 on the adjusting rod 16. The locking tongues 9 can only spring so far inwards until they rest on the side surfaces 19 of the toggle body 17, so that only the remaining free length of the tongues 9 is then considered for resilient yielding.

In der aus Fig.4 ersichtlichen zweiten Drehstellung des Knebelkörpers 17, eingestellt durch den Stellring 13 über die Stellstange 16, liegen die Kanten 18 jeweils hinter einer der Zungen 9 gepreßt an. Die Rastzungen 9 werden nach außen gedrückt gehalten, so daß die Raststege 10 fest innerhalb der Ausnehmung 7 der Hülse 2 liegen. Der Mastfuß 1 wird mit hoher Rastkraft in der Hülse 2 gehalten.In the second rotary position of the toggle body 17 shown in FIG. 4, set by the adjusting ring 13 via the adjusting rod 16, the edges 18 each press against one of the tongues 9. The latching tongues 9 are held pressed outward so that the latching webs 10 lie firmly within the recess 7 of the sleeve 2. The mast foot 1 is held in the sleeve 2 with a high locking force.

Claims (8)

1. Mast base for a wind surfer with which the mast is in cardanic connection, said mast base being releasably locked in a sleeve (2) or an opening of the surfer board body (3) and having locking -means engageable into corresponding recesses in the sleeve, respectively in the opening of the surfer board body, wherein said locking means are formed to be protruding locking detents (10) at the lower end of spring elastic tongues (9) extending in the inserting direction at said mast base (1) and being separated from each other by axial slots (11), characterized in that the spring elasticity of the locking tongues (9) is adjustable from the outside by means of a handle (13) manipulating a clamping nut (17), arranged between said locking tongues (9) inside the mast base, when said mast base is in the inserted position.
2. Mast base according to claim 1, characterized in that it is formed to be a hollow plastic material body (8), at whose lower region the locking tongues (9) are formed to be in one piece, and which is provided in its upper region with a shoulder limiting the depth of insertion and mounted on the upper edge of the sleeve (2) or the opening of the surfer board body (3) and above said shoulder is provided with the handle (13).
3. Mast base according to claim 1 or 2, characterized in that it is formed to be a hollow cylindrical body (8), and the handle consists of a set collar (13), said set colar being connected with a setting rod (16) axially extending inside the cylindrical body and carrying the clamping nut (17).
4. Mast base according to claim 3, characterized in that the set collar (13) is formed to be rotatable about a limited angle with the setting rod (16) relative to the cylindrical body (8), and the clamping nut (17) has protuberances distributed about the circumference of said clamping nut (17) and extending in the direction of rotation, the number of said protuberances corresponds to the number of the locking tongues (9) and in a first rotational position said protuberances are located opposite the axial slots (11) between the locking tongues (9) and in a second rotational position each protuberance is respectively in contact with one of the locking tongues (9).
5. Mast base according to claim 4, characterized in that in its cross-section the clamping nut (17) is mainly a multi-cornered body, whose corners form the protuberances (18).
6. Mast base according to claim 4 or 5, characterized in that the clamping nut (17) is fixed against rotation but is mounted to be axially displaceable on the setting rod (16).
7. Mast base according to one of the foregoing claims, characterized in that the clamping nut (17) is formed to be an elastic plastic material body.
8. Mast base according to claim 1 or 2, characterized in that the clamping nut (17) is fixedly mounted on the setting rod (16) and the set collar (13) is axially displaceable to an extent together with said setting rod and said clamping nut, relative to the cylindrical body (8) forming said mast base.
EP80102313A 1979-04-30 1980-04-29 Foot of a mast for a sailboard Expired EP0018625B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2917585 1979-04-30
DE19792917585 DE2917585A1 (en) 1979-04-30 1979-04-30 MAST FOOT FOR A SAILING BOARD

Publications (2)

Publication Number Publication Date
EP0018625A1 EP0018625A1 (en) 1980-11-12
EP0018625B1 true EP0018625B1 (en) 1982-06-23

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Application Number Title Priority Date Filing Date
EP80102313A Expired EP0018625B1 (en) 1979-04-30 1980-04-29 Foot of a mast for a sailboard

Country Status (7)

Country Link
US (1) US4331094A (en)
EP (1) EP0018625B1 (en)
JP (1) JPS5650882A (en)
BR (1) BR8002667A (en)
CA (1) CA1125105A (en)
DE (2) DE2917585A1 (en)
ES (1) ES264890Y (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044850A1 (en) * 1980-11-28 1982-07-01 Reint Feitsma, Jan Durk, 04708 Sao Paulo BOARD MAST FOOT CONNECTOR FOR SAILING BOARDS
DE3046230A1 (en) * 1980-12-08 1982-07-22 Hannes 8100 Garmisch-Partenkirchen Marker Spring loaded catch for securing mast to sail board - uses board recess with sprung stop latched by spring loaded cam, on mast foot tongue insertion
CA1195881A (en) * 1980-12-08 1985-10-29 Hannes Marker Sailboard
DE3100813C2 (en) * 1981-01-13 1990-08-23 Marker, Hannes, 8100 Garmisch-Partenkirchen Device for attaching a mast base to a sailing board
DE3201143C2 (en) * 1982-01-15 1984-09-27 Mistral Windsurfing AG, Bassersdorf Mast base for a sailboard mast
GB2119720A (en) * 1982-05-04 1983-11-23 Stainless W S Fixings Removable boat fitting
DE3340443A1 (en) * 1983-11-09 1985-05-15 Josef 8964 Nesselwang Allgaier Mast-foot joint for surfboards
US4806999A (en) * 1985-09-30 1989-02-21 American Telephone And Telegraph Company, At&T Bell Laboratories Area efficient input protection
GB8624460D0 (en) * 1986-10-13 1986-11-19 Hamel R Sailing system
US4945846A (en) * 1989-02-27 1990-08-07 Miley Bradford A Shock absorber unit for sailboards
AU693962B2 (en) * 1995-01-06 1998-07-09 Jim Banks Pivotable fin system
US5649846A (en) * 1995-01-06 1997-07-22 Harper; Derek Pivotable fin system
KR101302101B1 (en) * 2010-06-17 2013-09-10 삼성중공업 주식회사 System scaffolding supporter
KR101487683B1 (en) 2013-08-01 2015-01-29 삼성중공업 주식회사 Cargo insulation board

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Publication number Priority date Publication date Assignee Title
GB524297A (en) * 1941-07-10 1940-08-02 Reginald Arthur William Spoone Improvements in or relating to quick action coupling or engaging devices
US2687547A (en) * 1952-08-04 1954-08-31 Albert J Matter Glide and adapter for tubular furniture
US3046827A (en) * 1959-06-15 1962-07-31 Aerpat Ag Twist lock pin with ball detents and a rectangular actuator
US3413021A (en) * 1965-10-20 1968-11-26 Ferry Cap & Set Screw Co Tubular coupling
US3378219A (en) * 1967-01-13 1968-04-16 Illinois Tool Works Plastic fastener
US3574420A (en) * 1969-07-30 1971-04-13 Ladislao Waldmann Device for securing handles to cleaning elements or the like
CA893414A (en) * 1970-08-25 1972-02-22 W. Reilly Frederick Connector for joining tubular members
GB1457782A (en) * 1974-04-29 1976-12-08 Dzus Fastener Europe Quick release fasteners
GB1578159A (en) * 1976-09-22 1980-11-05 Wolf Geraete Gmbh Connector
NL7714271A (en) * 1976-12-23 1978-06-27 Solf Alexander HINGED MAST FOOT DEVICE, IN PARTICULAR FOR WINDSURF BOARDS.
DE7709045U1 (en) * 1977-03-23 1977-10-13 Binder Kunststofftechnik Gmbh, 7107 Neckarsulm Sailing board
US4161375A (en) * 1978-05-05 1979-07-17 Murphy Pierce M Connector for tubes of square cross-section

Also Published As

Publication number Publication date
US4331094A (en) 1982-05-25
DE2917585A1 (en) 1980-11-06
CA1125105A (en) 1982-06-08
JPS5650882A (en) 1981-05-08
ES264890Y (en) 1983-07-01
ES264890U (en) 1983-01-01
EP0018625A1 (en) 1980-11-12
BR8002667A (en) 1980-12-09
DE3060577D1 (en) 1982-08-12

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