EP0198261A1 - Wishbone - Google Patents

Wishbone Download PDF

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Publication number
EP0198261A1
EP0198261A1 EP86103785A EP86103785A EP0198261A1 EP 0198261 A1 EP0198261 A1 EP 0198261A1 EP 86103785 A EP86103785 A EP 86103785A EP 86103785 A EP86103785 A EP 86103785A EP 0198261 A1 EP0198261 A1 EP 0198261A1
Authority
EP
European Patent Office
Prior art keywords
boom
clamp
mast
head
connection
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
EP86103785A
Other languages
German (de)
English (en)
Other versions
EP0198261B1 (fr
Inventor
Christian Greiff
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
Priority to AT86103785T priority Critical patent/ATE39892T1/de
Publication of EP0198261A1 publication Critical patent/EP0198261A1/fr
Application granted granted Critical
Publication of EP0198261B1 publication Critical patent/EP0198261B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B63H8/22—Rigging arrangements involving masts, e.g. for windsurfing for connecting wishbones to the mast

Definitions

  • the invention relates to a boom for a sailing vehicle of the type specified in the preamble of claim 1.
  • the boom is attached to the mast of the sail or windsurfer with its forks bent outwards, usually with the help of a so-called mast mast, which is tied around the mast and the boom head.
  • the free end of the mast tamping is after the connection of the boom in a so-called clamp on one of the forks and secured by a knot.
  • a reliable and permanent connection of the boom to the mast with the help of a tamp requires a high degree of skill, material knowledge and strength. Especially inexperienced windsurfers rarely succeed in creating a permanent, firm connection with the help of a tampon. Either the connection is too loose from the beginning or a connection that is initially quite firm loosens during the course of surfing, because the rope gives in under the load and the fork boom loosens, even if the tan has been watered beforehand. Because the boom connection loosens during the course of surfing, the belly in the sail is enlarged and the sail needs to be trimmed.
  • a plastic sleeve is slid onto the mast and secured at the level of the boom to be connected with the aid of a tool.
  • a hook is attached to this sleeve, in which the boom is hung with its head.
  • the invention has for its object to provide a boom that can be quickly, easily and safely attached to and detached from the mast by anyone, and which also ensures a permanent, permanent connection to the mast, which can also be used in extreme conditions Conditions of use of the sail or windsurfer does not loosen.
  • the clamp connection of the boom to the sailing vehicle according to the invention ensures a permanent and absolutely secure fit of the boom on the mast, which does not loosen even during prolonged surfing. Since this connection does not require a great deal of effort or special skill, it can also be handled safely by everyone.
  • the clamp connection has the advantage that the mast is protected because the boom is absolutely tilt-proof on the mast. This significantly reduces the risk of the mast breaking.
  • the firm and at the same time gentle contact of the boom head to the mast can be further increased by lining the inner surface of the clamp with an adhesive coating, especially with adhesive rubber.
  • a particularly advantageous embodiment of the boom according to the invention provides for the use of a quick-action lock for the boom head designed as a clamp.
  • This quick release fastener is designed so that with its help the two clamp halves can be connected to the mast without using a tool.
  • the two clamp halves can be completely separated from one another when the quick-action lock is released, so that the boom can be removed from or attached to the mast in a simple manner.
  • the boom is to be opened completely on the mast side
  • it is provided to open and close the boom at the rear connecting piece.
  • the two halves of the clamp of the boom head are articulated via a swivel connection, for example a hinge, and the aft, separable fork connection fitting is equipped with a quick-release lock.
  • the boom head is clamped to the mast at the same time.
  • the great advantage of the aft quick-release fastener is the leverage of the two relatively long forks on the two clamp halves to be closed on the mast.
  • the inner clamp surface can, for example, have a square cross section, as a result of which these clamp surfaces are coupled tangentially to the mast.
  • the inner surface of the clamp is circular-cylindrical in such a way that the diameter of the inner surface of the clamp essentially corresponds to the outer diameter of the mast.
  • the circular cylindrical design of the inner surface of the clamp results in the best and most gentle coupling of the boom to the mast by means of the clamp-shaped boom head.
  • the boom head according to the invention is also ideally suited for converting conventional booms with rope or hook connection to the mast. For this purpose, only the original boom head has to be removed and the two forks have to be inserted and fastened in mounting holes of the clamp boom head or in corresponding adapter tubes that are attached to the head.
  • FIG. 1 shows a complete fork tree for a sailing or windsurfer, which consists of two forks 20 and 21 which are characteristic of this type of sailing vehicle and are bent outwards. Aft, the fork ends 24 and 25 are connected to one another by a connecting fitting 50, while the front fork ends 22 and 23 are each fastened in a clamp half 13 and 14 of the boom head designed as a clamp.
  • the boom head 10 is shown in detail.
  • This designed as a clamp boom head 10 consists of a tensile and compressive plastic material or a metal alloy, in particular aluminum alloy and has 13 and 14 bores in each clamp half, which run essentially in the clamp plane and into which the two Fork ends 22 and 23 are plugged in.
  • the fork ends 22 and 23 are clamped in the boom head 10 by screws, not shown.
  • the two clamp halves 13 and 14 expanded to accommodate the fork ends 22 and 23 are moved apart from one another by bending the elastic fork tubes 20 and 21 to such an extent that the split fork head 10 can be plugged onto the mast 30.
  • the eighth connecting fitting 50 can, however, also be designed in a split manner, the two fitting parts being guided together by a hinge, the pivot axis of which runs essentially perpendicular to the fork plane. By this measure, the two-part boom head 10 can be opened without any effort and hinged to the mast.
  • the axially split boom head clamp has an inner surface 12 which is essentially circular-cylindrical and the diameter of which essentially corresponds to the outer diameter of the mast 30.
  • the inner surface 12 of the clamp is additionally lined with an adhesive covering 15, which consists for example of an adhesive rubber. This adhesive rubber is used for the gentle coupling of the inner clamp surface 12 to the mast 30.
  • the clamp 30, which surrounds the mast 30 with its two halves 13 and 14, is provided with a quick-release fastener 40, with which the two clamp halves 13 and 14 can be immovably coupled to the mast 30, and which is inserted in the clamp so that it can be removed from the mast 30 when the quick-action fastener 40 is open.
  • the quick-action lock 40 can be designed in a known manner as a bayonet or as a locking pin lock. Shown in the figures The exemplary embodiment of the quick-action fastener consists of a simple screw connection which is provided in the two clamp halves opposite the fork connection.
  • a hole for a wing head screw 41 is made, which is substantially perpendicular to the clamp separating surface and is extended towards the outer edge of the clamp.
  • This enlargement or recess 19 in the clamp half 13 serves to completely accommodate the head of the wing screw 41 and to make the wing head screw accessible for easy handling.
  • a bore 18 is made in the clamp half 14 for a starting sheet.
  • a groove-like or rebate-like undercut 16, 17 is provided for better guidance of the clamp halves when connecting to the mast 30 or for stabilizing the clamp clamp half connection thereby achieved.
  • the two clamp halves 13 and 14 of the boom head 10 can by a Schwenkver Binding be articulated and the boom is hinged at the aft end by a two-piece fork connection fitting 50.
  • This aft-separable boom is placed around the mast 30 with the forks 20 and 21 pivoted open, and the clamp 40 is clamped to the mast 30 by closing and locking the aft fork connection fitting 50.
  • the eighth fork connection fitting 50 is provided with a quick release lock.
EP86103785A 1985-04-19 1986-03-20 Wishbone Expired EP0198261B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86103785T ATE39892T1 (de) 1985-04-19 1986-03-20 Gabelbaum.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3514265 1985-04-19
DE19853514265 DE3514265A1 (de) 1985-04-19 1985-04-19 Gabelbaum

Publications (2)

Publication Number Publication Date
EP0198261A1 true EP0198261A1 (fr) 1986-10-22
EP0198261B1 EP0198261B1 (fr) 1989-01-11

Family

ID=6268660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103785A Expired EP0198261B1 (fr) 1985-04-19 1986-03-20 Wishbone

Country Status (3)

Country Link
EP (1) EP0198261B1 (fr)
AT (1) ATE39892T1 (fr)
DE (2) DE3514265A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263783A1 (fr) * 1986-10-09 1988-04-13 Hansruedi Naepflin Dispositif pour fixer un wishbone à un mât d'un gréement
GB2232140A (en) * 1989-05-20 1990-12-05 Peter Stuart Spencer Wishbone boom mast collar for a sailboard

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4213825A1 (de) * 1992-04-28 1993-11-04 Klaus Steinig Gabelbaumkopf fuer einen gabelbaum eines windsurfgeraetes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332686A (fr) * 1962-06-06 1963-07-19 Lorba Raccord pour éléments de structure tubulaire
FR1462459A (fr) * 1965-11-05 1966-04-15 Diela Soc D Expl Des Ets Dispositif d'assemblage de deux éléments de forme allongée perpendiculaires entreeux
DE2855556A1 (de) * 1978-12-22 1980-07-03 Christian Gruemann Spreizbaum fuer segelbretter
DE2912868A1 (de) * 1979-03-30 1980-10-09 Biggesee Boots Service Gmbh & Segelrigg
DE3032631A1 (de) * 1979-10-05 1982-04-08 geb. Nowak Renate 5650 Solingen Felsberg Klemme
US4448142A (en) * 1981-11-02 1984-05-15 The Coleman Company, Inc. Boom assembly for sailboard

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123197A1 (de) * 1981-06-11 1982-12-30 Mistral Windsurfing AG, 8303 Nürensdorf, Zürich Vorrichtung zur halterung des gabelbaumes fuer windsurfbretter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332686A (fr) * 1962-06-06 1963-07-19 Lorba Raccord pour éléments de structure tubulaire
FR1462459A (fr) * 1965-11-05 1966-04-15 Diela Soc D Expl Des Ets Dispositif d'assemblage de deux éléments de forme allongée perpendiculaires entreeux
DE2855556A1 (de) * 1978-12-22 1980-07-03 Christian Gruemann Spreizbaum fuer segelbretter
DE2912868A1 (de) * 1979-03-30 1980-10-09 Biggesee Boots Service Gmbh & Segelrigg
DE3032631A1 (de) * 1979-10-05 1982-04-08 geb. Nowak Renate 5650 Solingen Felsberg Klemme
US4448142A (en) * 1981-11-02 1984-05-15 The Coleman Company, Inc. Boom assembly for sailboard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263783A1 (fr) * 1986-10-09 1988-04-13 Hansruedi Naepflin Dispositif pour fixer un wishbone à un mât d'un gréement
GB2232140A (en) * 1989-05-20 1990-12-05 Peter Stuart Spencer Wishbone boom mast collar for a sailboard

Also Published As

Publication number Publication date
EP0198261B1 (fr) 1989-01-11
DE3514265A1 (de) 1986-10-23
DE3661709D1 (en) 1989-02-16
ATE39892T1 (de) 1989-01-15

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