EP0192688B1 - Voilure symetrique - Google Patents

Voilure symetrique Download PDF

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Publication number
EP0192688B1
EP0192688B1 EP85904247A EP85904247A EP0192688B1 EP 0192688 B1 EP0192688 B1 EP 0192688B1 EP 85904247 A EP85904247 A EP 85904247A EP 85904247 A EP85904247 A EP 85904247A EP 0192688 B1 EP0192688 B1 EP 0192688B1
Authority
EP
European Patent Office
Prior art keywords
sail
longitudinal
rigging
mast
gripping bar
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
EP85904247A
Other languages
German (de)
English (en)
Other versions
EP0192688A1 (fr
Inventor
Peter Dr. Ing. Plica
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
Priority claimed from DE3432099A external-priority patent/DE3432099C2/de
Priority claimed from DE3514270A external-priority patent/DE3514270C1/de
Application filed by Individual filed Critical Individual
Priority to AT85904247T priority Critical patent/ATE40968T1/de
Publication of EP0192688A1 publication Critical patent/EP0192688A1/fr
Application granted granted Critical
Publication of EP0192688B1 publication Critical patent/EP0192688B1/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
    • B63H8/40—Arrangements for improving or maintaining the aerodynamic profile of sails, e.g. cambers, battens or foil profiles

Definitions

  • the invention relates to a rig according to the preamble of claim 1.
  • Such a rig is known from patent document EP-A-0 083 806.
  • the rig for sailboards described there consists of rigid transverse ribs that are connected to each other by longitudinal spars. The windward edge of the sail is always held by a longitudinal spar and thus stiffened. Continuous pockets and strings are used to attach the sail to the transverse ribs and longitudinal spars.
  • symmetrical rigs are that they can be flown against from two directions, so that in certain maneuvers there is no need to write or change sides. Accordingly, a grip bar for holding the rig is only required on the windward side.
  • an aerodynamically advantageous, elliptical sail outline is structurally easy to implement.
  • a disadvantage is that the mast-like spars on the windward sail edges generate air swirls through their cross-section and thus reduce the propulsion of the sail.
  • mast spars also has a disadvantage. Either they adapt to the curved sail outline as slender, straight rods and are deformed very strongly under wind pressure, or they are pre-curved in a stronger version, which in turn leads to higher costs and storage problems.
  • a symmetrical rig without mast-like spars on the longitudinal edges of the sail is also known from the international application PCT / CH 84/00 104.
  • the mast arranged in the middle is held by a mast pocket in the plane of the sail area, the cross section of the mast being designed so that it partially follows the deformations of the sail area.
  • this solution avoids the vortex-forming mast, the sail profile in the transverse direction, i.e. parallel to the air flow, remains uncontrollable, since shape-retaining components are missing in the transverse direction.
  • this rig like the ones described above, collects water in the mast pocket. This makes it difficult to pull the rig out of the water.
  • the invention has for its object to design a rig of the type mentioned so that longitudinal spars on the sail edges are eliminated and the sail surface is made largely free of deformation by suitable additional components.
  • the key-shaped sail surface with the stiffening elements is to form a composite component by expedient arrangement and connection of all parts to one another, which due to its favorable carrying behavior enables a reduction in the dimensions of the individual elements, in particular the longitudinal spars.
  • Figure 1 shows an overview of the various components of the rig in an advantageous embodiment with a longitudinal spar 2 and three transverse ribs 8, one of which is provided with a handle bar 4.
  • the sail surface 1 which is doubly curved in the same direction and preformed during manufacture, is made of high-strength material and is connected to the longitudinal spar and the transverse ribs only at the edges by means of short insertion tabs or belts.
  • the rig gets its final shape by tensioning the sail area 1 against the longitudinal spar 2 at the base of the rig.
  • battens of known type are arranged between the transverse ribs and are likewise only held at the sail edges.
  • the rig is guided by the sailor with the handle bar 4.
  • the line 7 is used in a known manner for pulling up the rig with the special feature that the upper end of the line 7 can be displaced via a ring on the tension band 6 of the transverse rib 8. This allows the rig to be pulled up on one side or the other as desired.
  • a slight longitudinal curvature is formed in the sail area 1 in the region of the longitudinal axis. If the straight longitudinal spar 2 is tensioned against the sail surface during construction, it must follow the curvature and develop restoring forces which generate tensile forces in the sail surface 1 essentially along the sail edges. This makes the rig dimensionally stable and self-supporting without external stress.
  • the mode of operation of the rig described here is not limited to the combination of a longitudinal spar 2 with three transverse ribs. Depending on the size and special requirements, the cross ribs can be used in any number.
  • a reinforcement of the sail area 1 in highly stressed areas by tapes, ropes or other suitable materials is also appropriate in special cases.
  • the longitudinal spar 2 is guided according to Figure 1 through openings 9 in the ribs 8. This results in a simple, non-positive connection and in the assembled state immovable connection between the ribs 8 and the longitudinal spar 2.
  • the ends of the ribs 8 are connected to the sail area 1 by short insertion tabs 13.
  • the ribs 8 are first laid flat on the spread sail surface 1, the stretched width of which corresponds to the arc length of the rib 8 between the insertion flaps 13. Since only the shorter chord length between the rib ends is required to insert the rib 8, the rib 8 can be easily inserted into the insertion tabs 13. Thereafter, the rib 8 is rotated 90 ° into the final position, the sail surface 1 lies against the leeward, curved rear side of the rib 8 and is tensioned at the same time. The longitudinal spar 2 then passed through the opening 9 secures the rib 8 against unintentional turning back.
  • variable rib cross section in FIG. 2 is evident from the associated sections in FIGS. 3 and 4.
  • the approximately flat-triangular cross-sectional shape according to section a-a is approximately retained in the outer quarters of the rib length. From the quarter point onwards, the cross-sectional height then increases increasingly to the center of the rib according to section b-b, the cross-section merging into a narrow rectangle.
  • FIGS. 3 and 4 apply when wood is used as a building material.
  • open or closed profile cross sections with or without foaming are preferred, depending on the manufacturing process, while preserving the outer contour.
  • the design of the ribs 8 described here is on the one hand adapted to the stress caused by the wind forces and thus leads to less rib deformation. On the other hand, it enables the formation of the rib opening 9 for the advantageous, simple connection of the rib 8 to the longitudinal spar 2.
  • FIG. 5 shows the cross rib 8 connected to the grip strip 4. Since in this cross rib the full sail force occurring in the longitudinal spar 2 must be transmitted to the surfer via the grip strip 4, an adjustable drawstring 10 becomes between the center of the rib 8 and the center the handle bar 4 arranged, which largely reduces the stress and thus the deformation of the rib 8 and the handle bar 4.
  • an oval opening 12 shown in FIG. 1 is also provided in the sail area 1. It serves as a sail window and at the same time as an expansion compensator for the sail area 1.
  • the areas of the sail area 1 that are subject to high stress on both sides of the opening 12 undergo a plastic, irreversible deformation ( «sail bar») in the longitudinal direction of the sail, which in turn leads to a Reduction of the longitudinal curvature formed in the sail surface 1 leads.
  • This undesirable effect can be eliminated by the fact that the sail area 1 in the area of the longitudinal spar 2 is also stretched in the longitudinal direction.
  • the opening 12 will closed by an easily deformable material, which yields when the longitudinal spars 2 are tightened against the sail surface 1 and thus leads to the required expansion. It is important to ensure that reinforcement strips made of canvas or other low-stretch material running parallel to the longitudinal axis of the sail are avoided within the opening 12.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Catalysts (AREA)

Abstract

Une voilure symétrique pour planches de surf à voile et autres véhicules à voile susceptible d'être pivotée et inclinée à sa base comprend une surface de voile de forme concave et de contour oval (1), présentant dans la région de l'axe de la voile des espars longitudinaux droits (2) et des supports (3, 6) transversaux à ceux-ci qui sont connectés aux bords de la voile, reposent sur le côté du vent de la surface de la voile et forment, avec la surface de la voile, en élément concave de connexion. La surface de la voile, essentiellement libre de déformations, et l'absence d'un mât susceptible de créer des tourbillons, augmentent l'efficacité aérodynamique de la voilure. Aucun mât ni fentes pour lattes ne sont nécessaires. En outre, le maniement est facilité lors du démarrage et le transport est simplifié par les unités de barres droites et courtes.

Claims (8)

1. Voilure symétrique rotative et basculante autour de sa base comprenant une barre de commande du côté du vent avec une voile creuse, dont le contour ovale est limité par un polygone et qui est tenue par des spires formant mât, caractérisée en ce
qu'une spire longitudinale (2) droite en état non fléchi, disposée dans l'axe longitudinale de la voile (1 avec une section plate favorable du point de vue aérodynamique, et des nervures transversales (8) rigides et courbes raidissant la voile (1 ), munies d'ouvertures (9) centrales destinées au passage de la spire longitudinale (2), sont prévues de sorte que
la spire longitudinale ainsi que les nervures transversales (8) sont reliées à leurs extrémités aux bords libres de la voile (1) par des bandes ou d'éléments d'enfilage,
se serrent sur toute leur longueur contre la voile ( 1 ) du côté du vent
et forment un élément porteur creux en combinaison avec la voile (1).
2. Voilure selon la revendication 1 caractérisée en ce que la barre de commande (4) est reliée à une des nervures transversales (8) par des articulations.
3. Voilure selon la revendication 1 caractérisée en ce que des lattes sans goussets de lattes sont disposées entre les nervures transversales (8).
4. Voilure selon la revendication 2 caractérisée en ce qu'une corde (7) sert à tirer la voilure de l'eau, étant fixée d'une part au pied du mât et d'autre part attachée de manière coulissante au tirant (6) de la nervure transversale (8), munie de la barre de commande (4).
5. Voilure selon la revendication 2 caractérisée en ce que la nervure transversale (8) munie de la barre de commande (4) comprend un tirant (10) ajustable, reliant le centre de la nervure (8) au centre de la barre de commande (4).
6. Voilure selon la revendication 2 caractérisée en ce que la voile ( 1 ) comprend une ouverture (12) ovale disposée dans l'axe longitudinale de la voile (1) et près de la nervure transversale (8) munie de la barre de commande (4), dont le diamètre dépasse la mi-largeur de la voilure.
7. Voilure selon la revendication 6 caractérisée en ce que l'ouverture (12) est fermée par un matériau dont le module d'élasticité est considérablement inférieur à celui de la voile (1) d'entourant.
8. Voilure selon la revendication 6 et 7 caractérisée en ce que l'ouverture (12) n'est renforcée que par des bandes de toile ou d'autre matériau peu déformable, arrangées perpendiculairement à l'axe longitudinale de la voile (1).
EP85904247A 1984-08-31 1985-08-28 Voilure symetrique Expired EP0192688B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85904247T ATE40968T1 (de) 1984-08-31 1985-08-28 Symmetrisches rigg.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3432099 1984-08-31
DE3432099A DE3432099C2 (de) 1984-08-31 1984-08-31 Symmetrisches Rigg
DE3514270 1985-04-19
DE3514270A DE3514270C1 (de) 1985-04-19 1985-04-19 Symmetrisches Rigg

Publications (2)

Publication Number Publication Date
EP0192688A1 EP0192688A1 (fr) 1986-09-03
EP0192688B1 true EP0192688B1 (fr) 1989-03-01

Family

ID=25824351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85904247A Expired EP0192688B1 (fr) 1984-08-31 1985-08-28 Voilure symetrique

Country Status (5)

Country Link
EP (1) EP0192688B1 (fr)
AU (1) AU4775385A (fr)
DK (1) DK197986D0 (fr)
ES (1) ES8701644A1 (fr)
WO (1) WO1986001481A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540646A1 (de) * 1985-11-15 1986-05-22 Peter Dr. 8000 München Plica Rippe fuer symmetrisches rigg
DE3601510C1 (de) * 1986-01-20 1987-07-16 Peter Dr-Ing Plica Gabelbaum fuer ein symmetrisches Rigg
FR2597066A1 (fr) * 1986-04-10 1987-10-16 Bard Gerald Ensemble propulsif avec voile symetrique
DE10348598A1 (de) * 2003-07-29 2005-02-24 Eisenberg, Hans Jochen Fahnenartiger Werbeträger
FR3027281B1 (fr) * 2014-10-21 2018-03-23 Fabrice Baronnet Greement simplifiant les manoeuvres de changement d'amure
FR3098187A1 (fr) * 2019-07-02 2021-01-08 F.One Aile de traction autonome

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083806A1 (fr) * 1982-01-06 1983-07-20 Bram Jan Voslamber Voile et gréement pour un véhicule à voile
WO1985000333A1 (fr) * 1983-07-06 1985-01-31 Urs Peter Meyer Greement de voile

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173395A (en) * 1963-04-18 1965-03-16 Price Ranch Double ended sailboat
US3707935A (en) * 1970-09-16 1973-01-02 J Rachie Surfing sailboat
FR2548621A1 (fr) * 1983-07-04 1985-01-11 Comte Francois Greement pour planche a voile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083806A1 (fr) * 1982-01-06 1983-07-20 Bram Jan Voslamber Voile et gréement pour un véhicule à voile
WO1985000333A1 (fr) * 1983-07-06 1985-01-31 Urs Peter Meyer Greement de voile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Motor Boat and Yachting, Vol.100, No.2189, 24.01.1964, London (GB), "That got away", see page 43 "A most unusual trimaran". *

Also Published As

Publication number Publication date
ES546614A0 (es) 1986-12-01
DK197986A (da) 1986-04-30
EP0192688A1 (fr) 1986-09-03
AU4775385A (en) 1986-03-24
WO1986001481A1 (fr) 1986-03-13
DK197986D0 (da) 1986-04-30
ES8701644A1 (es) 1986-12-01

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