EP0476513A1 - Laterally adjustable wishbones for sailboard rigs - Google Patents

Laterally adjustable wishbones for sailboard rigs Download PDF

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Publication number
EP0476513A1
EP0476513A1 EP91115410A EP91115410A EP0476513A1 EP 0476513 A1 EP0476513 A1 EP 0476513A1 EP 91115410 A EP91115410 A EP 91115410A EP 91115410 A EP91115410 A EP 91115410A EP 0476513 A1 EP0476513 A1 EP 0476513A1
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EP
European Patent Office
Prior art keywords
outer sleeve
sleeve
locking
spars
boom
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.)
Granted
Application number
EP91115410A
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German (de)
French (fr)
Other versions
EP0476513B1 (en
Inventor
Marc Dipl.-Ing. Namur
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.)
Schuetz-Werke & Co Kg GmbH
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Schuetz-Werke & Co Kg GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Publication of EP0476513A1 publication Critical patent/EP0476513A1/en
Application granted granted Critical
Publication of EP0476513B1 publication Critical patent/EP0476513B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
    • B63H8/20—Rigging arrangements involving masts, e.g. for windsurfing
    • B63H8/21—Wishbones

Definitions

  • the invention relates to a length-adjustable boom for surfboards, with two main spars connected by a boom head piece and two extension spars which are telescopically adjustable in these and which are connected to one another on the left side by an elastic boom end piece, and to devices for locking the spars at the length of the boom set according to the sail size one each with the ends of the main spars firmly connected inner sleeve, which has axially projecting latching tongues with radially outwardly projecting clamping sections over the end of the main spar, with radially inwardly projecting latching ring segments being formed on the ends of the latching tongues, and with one lockable of the inner sleeve, designed as a clamping sleeve, by which the locking tongues arranged on the inner sleeve are pressed together when pushed onto the inner sleeve, so that the locking ring formed on the locking tongues Snap the segments into circumferential grooves spaced on the extension bars.
  • the invention has for its object to further develop the generic boom with a view to greater functional reliability and easier handling of the locking device.
  • the boom according to the invention is characterized by a high level of functional reliability, simple handling and simple construction.
  • main spars 1 essentially consists of two main spars 1, which are connected at an acute angle to one another on the mast side by means of a fork head piece 2, and two extension spars 3, which are telescopically received by the main spars 1 and are connected to one another on the left side by means of an elastic boom end piece 4.
  • the boom is attached to the mast of a surfboard with the boom head piece 2 and held together by the sail bracing that runs from the corner between the leech and lower leech of the sail to the boom end piece 4.
  • the locking device also includes an outer sleeve 9 designed as a clamping sleeve, by means of which, when pushed onto the inner sleeve 5, the latching tongues 6 arranged thereon are pressed radially together via the clamping beads 7, so that the latching ring segments 8 formed on the latching tongues 6 are spaced into one of them Snap the extension bars 3 into the circumferential grooves 10.
  • an outer sleeve 9 designed as a clamping sleeve, by means of which, when pushed onto the inner sleeve 5, the latching tongues 6 arranged thereon are pressed radially together via the clamping beads 7, so that the latching ring segments 8 formed on the latching tongues 6 are spaced into one of them Snap the extension bars 3 into the circumferential grooves 10.
  • the end of the inner sleeve 5 fastened to the end of a main spar 1 has a collar 11 with flat end teeth 12, and the push-on end 13 of the outer sleeve 9 has corresponding counter teeth 14, the teeth 15 of which are separated by axial slots 16.
  • Handle recesses 17 are formed in the outer sleeve 9.
  • Inner 5 and outer sleeve 9 of the locking device are made as molded plastic parts.
  • the locking devices are released by rotating the outer sleeve 9 in the direction of the arrow b or c, whereby the end teeth 14 on the push-on end 13 of the outer sleeve 9 while simultaneously displacing them in the direction of arrow d and releasing the ring portions 20 of the teeth 15 on the push-on end 13 of the outer sleeve 9 from the clamping beads 7 on the inner sleeve 5 slides out of the end toothing 12 of the inner sleeve, and the outer sleeve 9 is simply pulled off the inner sleeve 5.

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Jib Cranes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Clamps And Clips (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Abstract

To lock the extension spars 3 to the main spars 1 at a length adjustment of the wishbone of a sailboard rig selected in accordance with the sail area, the outer sleeves 9 sitting loosely on the extension spars 3 are pushed in arrow direction a onto the inner sleeves 5. When the outer sleeves 9 are pushed onto the inner sleeves 5, the catch tongues 6 of the inner sleeve 5 are radially compressed by the clamping force exerted by the push-on end 13 of the outer sleeve 9 via the clamping beads 7 on the catch tongues 6, so that catch ring segments integrally formed on the free ends of the catch tongues 6 snap into the peripheral groove 10 provided on the extension spar 3, the flat ring sections 20 integrally formed on the push-on end 13 of the outer sleeve 9 on the inside 18 of the teeth 15, flexible to a limited extent, of the end tooth system 14 catch behind the clamping beads 7 integrally formed at a distance form the end tooth system 12 on the inner end sections of the catch tongues 6, and the end tooth systems 12, 14 of inner sleeve 5 and outer sleeve 9 come into engagement so that the sleeves are locked to one another. <??>The locking devices are released by turning the outer sleeve 9, as a result of which the end tooth system 14 on the push-on end 13 of the outer sleeve 9 slides out of the end tooth system 12 of the inner sleeve while the outer sleeve is simultaneously displaced in arrow direction d and the ring sections 20 of the teeth 15 on the push-on end 13 of the outer sleeve 9 are released from the clamping beads 7 on the inner sleeve 5, and simple removal of the outer sleeve 9 from the inner sleeve 5 is possible. <IMAGE>

Description

Die Erfindung betrifft einen längenverstellbaren Gabelbaum für Surfbretter, mit zwei durch ein Gabelbaumkopfstück verbundenen Hauptholmen und zwei in diesen teleskopartig verstellbaren Verlängerungsholmen, die achterliekseitig durch ein elastisches Gabelbaumendstück miteinander verbunden sind, sowie Vorrichtungen zum Verriegeln der Holme bei der entsprechend der Segelgröße eingestellten Länge des Gabelbaumes mit je einer mit den Enden der Hauptholme fest verbundenen Innenhülse, die über das Ende des Hauptholms axial vorstehende Rastzungen mit radial nach außen vorragenden Klemmabschnitten aufweist, wobei an den Enden der Rastzungen in Umfangsrichtung verlaufende, radial nach innen vorstehende Rastringsegmente angeformt sind, und mit einer mit der Innenhülse verriegelbaren, als Klemmhülse ausgebildeten Außenhülse, durch die beim Aufschieben auf die Innenhülse die an dieser angeordneten Rastzungen zusammengedrückt werden, so daß die an den Rastzungen angeformten Rastringsegmente in mit Abstand auf den Verlängerungsholmen angeordnete Umfangsrillen einrasten.The invention relates to a length-adjustable boom for surfboards, with two main spars connected by a boom head piece and two extension spars which are telescopically adjustable in these and which are connected to one another on the left side by an elastic boom end piece, and to devices for locking the spars at the length of the boom set according to the sail size one each with the ends of the main spars firmly connected inner sleeve, which has axially projecting latching tongues with radially outwardly projecting clamping sections over the end of the main spar, with radially inwardly projecting latching ring segments being formed on the ends of the latching tongues, and with one lockable of the inner sleeve, designed as a clamping sleeve, by which the locking tongues arranged on the inner sleeve are pressed together when pushed onto the inner sleeve, so that the locking ring formed on the locking tongues Snap the segments into circumferential grooves spaced on the extension bars.

Bei einem durch die EP 0317661 A1 bekannten längenverstellbaren Gabelbaum dieser Art werden zur Verriegelung der Hauptholme mit den Verlängerungsholmen die mit einem Innengewinde versehenen Außenhülsen auf die ein entsprechendes Außengewinde aufweisenden Innenhülsen aufgeschraubt. Die heute bei Surfbrettern überwiegend zum Einsatz kommenden Sitztrapeze bewirken eine starke Torsionsbeanspruchung des Gabelbaumes, so daß die Gefahr besteht, daß die in Eingriff stehenden Gewinde der Innen- und Außenhülse bei der Verriegelung des gattungsgemäßen Gabelbaumes sich festfressen und infolgedessen die Verriegelung nur unter großen Kraftanstrengungen und oft nur mit Hilfe von Werkzeugen gelöst werden kann. Weiterhin ist die bekannte Verriegelungsvorrichtung verhältnismäßig aufwendig und umständlich in der Handhabung.In a length-adjustable boom of this type known from EP 0317661 A1, the outer sleeves provided with an internal thread are screwed onto the inner sleeves having a corresponding external thread in order to lock the main spars with the extension bars. The harnesses mainly used today on surfboards cause a strong torsional stress on the boom, so that there is a risk that the engaged threads of the inner and outer sleeves seize when locking the generic boom and consequently the locking only with great effort and often can only be solved with the help of tools. Furthermore, the known locking device is relatively complex and cumbersome to use.

Der Erfindung liegt die Aufgabe zugrunde, den gattungsgemäßen Gabelbaum im Hinblick auf eine größere Funktionssicherheit und eine einfachere Handhabung der Verriegelungsvorrichtung weiterzuentwickeln.The invention has for its object to further develop the generic boom with a view to greater functional reliability and easier handling of the locking device.

Diese Aufgabe ist erfindungsgemäß gelöst durch einen längenverstellbaren Gabelbaum mit den Merkmalen des Patentanspruchs 1.This object is achieved according to the invention by a length-adjustable boom with the features of patent claim 1.

Die Unteransprüche beinhalten zweckmäßige Weiterbildungen der Erfindung.The subclaims contain expedient developments of the invention.

Der erfindungsgemäße Gabelbaum zeichnet sich durch eine große Funktionssicherheit, eine einfache Handhabung und eine einfache Konstruktion aus.The boom according to the invention is characterized by a high level of functional reliability, simple handling and simple construction.

Weitere Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines in der Zeichnung dargestellten Ausführungsbeispiels. Es zeigt

  • Fig. 1 eine perspektivische Sprengdarstellung des erfindungsgemäßen Gabelbaumes,
  • Fig. 2 eine perspektivische Ansicht der Verriegelungsvorrichtung des Gabelbaums und
  • Fig. 3 einen Längsschnitt der Verriegelungsvorrichtung nach Fig. 2 in vergrößerter Darstellung.
Further details of the invention result from the following description of an embodiment shown in the drawing. It shows
  • 1 is an exploded perspective view of the boom according to the invention,
  • Fig. 2 is a perspective view of the locking device of the boom and
  • Fig. 3 shows a longitudinal section of the locking device of FIG. 2 in an enlarged view.

Der Gabelbaum nach Fig. 1 besteht im wesentlichen aus zwei Hauptholmen 1, die mastseitig über ein Gabelbaumkopfstück 2 spitzwinklig miteinander verbunden sind, und zwei Verlängerungsholmen 3, die teleskopartig von den Hauptholmen 1 aufgenommen werden und achterliekseitig über ein elastisches Gabelbaumendstück 4 miteinander verbunden sind.1 essentially consists of two main spars 1, which are connected at an acute angle to one another on the mast side by means of a fork head piece 2, and two extension spars 3, which are telescopically received by the main spars 1 and are connected to one another on the left side by means of an elastic boom end piece 4.

Der Gabelbaum wird mit dem Gabelbaumkopfstück 2 am Mast eines Surfbrettes befestigt und durch die Segelverspannung zusammengehalten, die von der Ecke zwischen Achterliek und Unterliek des Segels zum Gabelbaumendstück 4 verläuft.The boom is attached to the mast of a surfboard with the boom head piece 2 and held together by the sail bracing that runs from the corner between the leech and lower leech of the sail to the boom end piece 4.

Die Vorrichtung nach den Fign. 2 und 3 zum Verriegeln der Verlängerungsholme 3 mit den Hauptholmen 1 bei der entsprechend der Segelgröße eingestellten Länge des Gabelbaumes weist je eine mit den Enden der Hauptholme 1 fest verbundene Innenhülse 5 mit über das Ende des Hauptholms 1 axial vorstehenden Rastzungen 6 auf, auf deren inneren Endabschnitten radial nach außen vorragende, als Ringwulstsegmente ausgebildete Klemmwülste 7 und an deren freien Enden in Umfangsrichtung verlaufende, radial nach innen vorstehende Rastringsegmente 8 angeformt sind.The device according to FIGS. 2 and 3 for locking the extension bars 3 with the main bars 1 at the length of the boom, which is set according to the sail size, each have an inner sleeve 5 which is fixedly connected to the ends of the main bars 1 and has latching tongues 6 projecting axially over the end of the main bar 1, on the inner thereof End sections protruding radially outward, formed as annular bead segments 7 and at their free ends extending in the circumferential direction, radially inwardly projecting locking ring segments 8 are formed.

Zu der Verriegelungsvorrichtung gehört ferner eine als Klemmhülse ausgebildete Außenhülse 9, durch die beim Aufschieben auf die Innenhülse 5 die an dieser angeordneten Rastzungen 6 über die Klemmwülste 7 radial zusammengedrückt werden, so daß die an den Rastzungen 6 angeformten Rastringsegmente 8 in eine der mit Abstand auf den Verlängerungsholmen 3 angebrachten Umfangsrillen 10 einrasten.The locking device also includes an outer sleeve 9 designed as a clamping sleeve, by means of which, when pushed onto the inner sleeve 5, the latching tongues 6 arranged thereon are pressed radially together via the clamping beads 7, so that the latching ring segments 8 formed on the latching tongues 6 are spaced into one of them Snap the extension bars 3 into the circumferential grooves 10.

Das auf dem Ende eines Hauptholms 1 befestigte Ende der Innenhülse 5 weist einen Bund 11 mit einer flachen Stirnverzahnung 12 auf, und das Aufschiebeende 13 der Außenhülse 9 hat eine entsprechende Gegenverzahnung 14, deren Zähne 15 durch axiale Schlitze 16 getrennt sind.The end of the inner sleeve 5 fastened to the end of a main spar 1 has a collar 11 with flat end teeth 12, and the push-on end 13 of the outer sleeve 9 has corresponding counter teeth 14, the teeth 15 of which are separated by axial slots 16.

In die Außenhülse 9 sind Griffmulden 17 eingeformt.Handle recesses 17 are formed in the outer sleeve 9.

Innen- 5 und Außenhülse 9 der Verriegelungsvorrichtung sind als Kunststoff-Spritzteile gefertigt.Inner 5 and outer sleeve 9 of the locking device are made as molded plastic parts.

Zur Verriegelung der Verlängerungsholme 3 mit den Hauptholmen 1 bei einer entsprechend der Segelgröße gewählten Längeneinstellung des Gabelbaums werden die lose auf den Verlängerungsholmen 3 sitzenden Außenhülsen 9 in Pfeilrichtung a auf die Innenhülsen 5 geschoben. Beim Aufschieben der Außenhülsen 9 werden die Rastzungen 6 der Innenhülse 5 durch die durch das Aufschiebeende 13 der Außenhülse 9 über die Klemmwülste 7 an den Rastzungen 6 ausgeübte Klemmkraft radial zusammengedrückt, so daß die Rastringsegmente 8 der Rastzungen 6 in die vorgesehene Umfangsrille 10 des Verlängerungsholmes 3 einrasten, die auf der Innenseite 18 der begrenzt federnden Zähne 15 der Stirnverzahnung 14 am Aufschiebeende 13 der Außenhülse 9 angeformten flachen Ringabschnitte 20 rasten hinter die mit Abstand von der Stirnverzahnung 12 auf den inneren Endabschnitten der Rastzungen 6 angeformten Klemmwülste 7 und die Stirnverzahnungen 12, 14 von Innen- 5 und Außenhülse 9 gelangen in Eingriff, so daß die Hülsen miteinander verriegelt sind.To lock the extension spars 3 with the main spars 1 with a length setting of the boom selected according to the sail size, they are loosely attached to the extension spars 3 seated outer sleeves 9 pushed in the direction of arrow a on the inner sleeves 5. When pushing on the outer sleeves 9, the locking tongues 6 of the inner sleeve 5 are radially compressed by the clamping force exerted by the pushing-on end 13 of the outer sleeve 9 via the clamping beads 7 on the locking tongues 6, so that the locking ring segments 8 of the locking tongues 6 into the provided circumferential groove 10 of the extension bar 3 snap in, the flat ring sections 20 formed on the inner side 18 of the limited resilient teeth 15 of the front toothing 14 at the push-on end 13 of the outer sleeve 9 snap behind the clamping beads 7 formed on the inner end sections of the locking tongues 6 at a distance from the front toothing 12 and the front teeth 12, 14 of inner 5 and outer sleeve 9 engage so that the sleeves are locked together.

Das Lösen der Verriegelungsvorrichtungen erfolgt durch Drehen der Außenhülse 9 in Pfeilrichtung b oder c, wodurch die Stirnverzahnung 14 am Aufschiebeende 13 der Außenhülse 9 unter gleichzeitiger Verschiebung derselben in Pfeilrichtung d und Lösen der Ringabschnitte 20 der Zähne 15 am Aufschiebeende 13 der Außenhülse 9 von den Klemmwülsten 7 an der Innenhülse 5 aus der Stirnverzahnung 12 der Innenhülse herausgleitet, und einfaches Abziehen der Außenhülse 9 von der Innenhülse 5.The locking devices are released by rotating the outer sleeve 9 in the direction of the arrow b or c, whereby the end teeth 14 on the push-on end 13 of the outer sleeve 9 while simultaneously displacing them in the direction of arrow d and releasing the ring portions 20 of the teeth 15 on the push-on end 13 of the outer sleeve 9 from the clamping beads 7 on the inner sleeve 5 slides out of the end toothing 12 of the inner sleeve, and the outer sleeve 9 is simply pulled off the inner sleeve 5.

Claims (3)

1. Längenverstellbarer Gabelbaum für Surfbretter, mit zwei durch ein Gabelbaumkopfstück verbundenen Hauptholmen und zwei in diesen teleskopartig verstellbaren Verlängerungsholmen, die achterliekseitig durch ein elastisches Gabelbaumendstück miteinander verbunden sind, sowie Vorrichtungen zum Verriegeln der Holme bei der entsprechend der Segelgröße eingestellten Länge des Gabelbaumes mit je einer mit den Enden der Hauptholme fest verbundenen Innenhülse, die über das Ende des Hauptholms axial vorstehende Rastzungen mit radial nach außen vorragenden Klemmabschnitten aufweist, wobei an den Enden der Rastzungen in Umfangsrichtung verlaufende, radial nach innen vorstehende Rastringsegmente angeformt sind, und mit einer mit der Innenhülse verriegelbaren, als Klemmhülse ausgebildeten Außenhülse,durch die beim Aufschieben auf die Innenhülse die an dieser angeordneten Rastzungen zusammengedrückt werden, so daß die an den Rastzungen angeformten Rastringsegmente in eine der mit Abstand auf den Verlängerungsholmen angebrachten Umfangsrillen einrasten, dadurch gekennzeichnet, daß das auf dem Ende eines Hauptholmes (1) befestigte Ende der Innenhülse (5) einen Bund (11) mit einer flachen Stirnverzahnung (12) und das Aufschiebeende (13) der Außenhülse (9) eine entsprechende Gegenverzahnung (14) aufweist, deren Zähne (15) durch axiale Schlitze (16) getrennt und dadurch begrenzt federnd ausgebildet sind, und daß auf der Innenseite (18) der Zähne (19) am Aufschiebeende (13) der Außenhülse (9) flache Ringabschnitte (20) angeformt sind, die in Verriegelungsstellung von Innen- (5) und Außenhülse (9) als Ringwulstsegmente ausgebildete Klemmwülste (7) hintergreifen, die auf den inneren Endabschnitten der Rastzungen (6) der Innenhülse (5) im Abstand von der Stirnverzahnung (12) angeformt sind und durch die Klemmwirkung der Außenhülse (9) radial zusammengedrückt werden.1.Length-adjustable boom for surfboards, with two main spars connected by a boom head piece and two extension spars that are telescopically adjustable in them, which are connected to each other on the left side by an elastic boom end piece, and devices for locking the spars at the length of the boom set according to the sail size, each with one with the ends of the main spars firmly connected inner sleeve, which has axially projecting locking tongues over the end of the main spar with radially outwardly projecting clamping sections, radially inwardly projecting locking ring segments are formed on the ends of the locking tongues, and with one with the inner sleeve Lockable outer sleeve designed as a clamping sleeve, by means of which the locking tongues arranged on the inner sleeve are pressed together when pushed onto the inner sleeve, so that the locking ring segments formed on the locking tongues into one of the areas with A bstand snap-in circumferential grooves on the extension bars, characterized in that the end of the inner sleeve (5) attached to the end of a main pillar (1) has a collar (11) with flat end teeth (12) and the push-on end (13) of the outer sleeve (9 ) has a corresponding counter-toothing (14), the teeth (15) of which are separated by axial slots (16) and are thus of limited resilience, and that on the inside (18) of the teeth (19) at the push-on end (13) of the outer sleeve (9 ) are formed flat ring sections (20) which engage in the locking position of the inner (5) and outer sleeve (9) formed as annular bead segments clamping beads (7) on the inner end portions of the locking tongues (6) of the inner sleeve (5) at a distance from the spur toothing (12) are formed and are radially compressed by the clamping action of the outer sleeve (9). 2. Gabelbaum nach Anspruch 1, gekennzeichnet durch in die Außenhülse (9) eingeformte Griffmulden (17).2. boom according to claim 1, characterized by molded into the outer sleeve (9) recessed grips (17). 3. Gabelbaum nach Anspruch 1 und 2, dadurch gekennzeichnet, daß Innen- (5) und Außenhülse (9) der Verriegelungsvorrichtung als Kunststoff-Spritzteile gefertigt sind.3. boom according to claim 1 and 2, characterized in that the inner (5) and outer sleeve (9) of the locking device are made as molded plastic parts.
EP91115410A 1990-09-15 1991-09-12 Laterally adjustable wishbones for sailboard rigs Expired - Lifetime EP0476513B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9013143U DE9013143U1 (en) 1990-09-15 1990-09-15 Length-adjustable boom for surfboards
DE9013143U 1990-09-15

Publications (2)

Publication Number Publication Date
EP0476513A1 true EP0476513A1 (en) 1992-03-25
EP0476513B1 EP0476513B1 (en) 1994-08-03

Family

ID=6857550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91115410A Expired - Lifetime EP0476513B1 (en) 1990-09-15 1991-09-12 Laterally adjustable wishbones for sailboard rigs

Country Status (8)

Country Link
US (1) US5193476A (en)
EP (1) EP0476513B1 (en)
JP (1) JPH07121718B2 (en)
AT (1) ATE109417T1 (en)
CA (1) CA2051276A1 (en)
DE (2) DE9013143U1 (en)
DK (1) DK0476513T3 (en)
ES (1) ES2057695T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9413377U1 (en) 1994-08-23 1994-10-27 Fanatic Sports GmbH, 56235 Ransbach-Baumbach Adjustable boom for surfboards
GB0601441D0 (en) * 2006-01-25 2006-03-08 Rycote Microphone Windshields Improved boom pole
CN108222502B (en) * 2018-02-13 2024-04-26 郑贤斌 Keel
EP3885588B1 (en) * 2020-03-24 2023-06-07 fischerwerke GmbH & Co. KG Insulating sleeve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239806A (en) * 1942-10-15 1945-11-15 Mani Louis Device comprising at least one extensible assembly having two sliding tubular elements.
DE8202724U1 (en) * 1982-02-03 1983-07-07 Schmidtkunz, Klaus-Jürgen, 3500 Kassel Sailing surfer
FR2543510A1 (en) * 1983-03-29 1984-10-05 Singer Sa Telescopic wishbone of adjustable length for sailboard
GB2155882A (en) * 1984-03-20 1985-10-02 Schuetz Werke Gmbh Co Kg Adjusting device for wishbones of sailboards rigs
DE8905237U1 (en) * 1989-04-25 1989-08-03 Gürtner, Norman, 8920 Schongau Vario adjustment for boom

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8204104U1 (en) * 1982-02-15 1982-07-22 Mistral Windsurfing AG, 8303 Bassersdorf FORK TREE OR SPREADER FOR WINDSURFBOARDS
EP0293928A1 (en) * 1987-06-05 1988-12-07 Hannes Marker Wishbone boom of adjustable lenght
EP0317661A1 (en) * 1987-11-25 1989-05-31 North Sails Windsurfing GmbH Telescopic wishbone
FR2628488B1 (en) * 1988-03-14 1990-12-28 Ecia Equip Composants Ind Auto QUICK ATTACHMENT OF THE IMPROVED BAYONET TYPE
US4984995A (en) * 1989-11-13 1991-01-15 Icore International, Inc. Anti-decoupling device for electrical conduit connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239806A (en) * 1942-10-15 1945-11-15 Mani Louis Device comprising at least one extensible assembly having two sliding tubular elements.
DE8202724U1 (en) * 1982-02-03 1983-07-07 Schmidtkunz, Klaus-Jürgen, 3500 Kassel Sailing surfer
FR2543510A1 (en) * 1983-03-29 1984-10-05 Singer Sa Telescopic wishbone of adjustable length for sailboard
GB2155882A (en) * 1984-03-20 1985-10-02 Schuetz Werke Gmbh Co Kg Adjusting device for wishbones of sailboards rigs
DE8905237U1 (en) * 1989-04-25 1989-08-03 Gürtner, Norman, 8920 Schongau Vario adjustment for boom

Also Published As

Publication number Publication date
DE9013143U1 (en) 1991-01-03
US5193476A (en) 1993-03-16
EP0476513B1 (en) 1994-08-03
JPH07121718B2 (en) 1995-12-25
ES2057695T3 (en) 1994-10-16
DK0476513T3 (en) 1994-12-27
ATE109417T1 (en) 1994-08-15
DE59102417D1 (en) 1994-09-08
JPH04230487A (en) 1992-08-19
CA2051276A1 (en) 1992-03-16

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