EP0171648B1 - Roll-reefing device for sailing boats - Google Patents

Roll-reefing device for sailing boats Download PDF

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Publication number
EP0171648B1
EP0171648B1 EP85109038A EP85109038A EP0171648B1 EP 0171648 B1 EP0171648 B1 EP 0171648B1 EP 85109038 A EP85109038 A EP 85109038A EP 85109038 A EP85109038 A EP 85109038A EP 0171648 B1 EP0171648 B1 EP 0171648B1
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EP
European Patent Office
Prior art keywords
sail
tubes
reel
walls
longitudinal
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
EP85109038A
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German (de)
French (fr)
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EP0171648A1 (en
Inventor
Daniel Montandon
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.)
NIRVANA ESPAR SYSTEMS SA
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NIRVANA ESPAR SYSTEMS SA
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Application filed by NIRVANA ESPAR SYSTEMS SA filed Critical NIRVANA ESPAR SYSTEMS SA
Publication of EP0171648A1 publication Critical patent/EP0171648A1/en
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Expired 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
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08—Connections of sails to masts, spars, or the like
    • B63H9/10—Running rigging, e.g. reefing equipment
    • B63H9/1021—Reefing
    • B63H9/1028—Reefing by furling around stays

Definitions

  • the reel described is intended to receive two sails. It is for this reason that the outer tube 14 has two parallel longitudinal slots 16, close to each other. These slots have a width just sufficient to allow the passage of the sail but insufficient to allow that of the headline.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Wind Motors (AREA)

Description

La présente invention se rapporte aux dispositifs utilisés sur les bateaux pour enrouler une voile avant, foc ou génois. Elle concerne, plus particulièrement, l'enrouleur de voile proprement dit, c'est-à-dire l'élément autour duquel la voile est enroulée.The present invention relates to devices used on boats for winding a front sail, jib or genoa. It relates, more particularly, to the actual sail furler, that is to say the element around which the sail is wound.

Les dispositifs d'enroulement de voile, qui donnent la possibilité d'adapter sa surface utile à la force des vents, permettent de naviguer dans les meilleures conditions d'efficacité et de sécurité.The sail winding devices, which give the possibility of adapting its useful surface to the force of the winds, make it possible to navigate in the best conditions of efficiency and safety.

L'enrouleur est une pièce tubulaire, traversée par le câble de l'étai qui, en supportant la voile, relie le sommet du mât à l'avant du bateau. Cette pièce tubulaire présente une gorge longitudinale destinée à recevoir et emprisonner le bord de la voile, appelé ralingue. La base de l'enrouleur est couplée à un mécanisme d'entraînement permettant de le mettre en rotation sur lui-même autour de l'étai pour enrouler la voile.The furler is a tubular piece, crossed by the forestay cable which, supporting the sail, connects the top of the mast to the front of the boat. This tubular part has a longitudinal groove intended to receive and trap the edge of the sail, called a rope. The base of the furler is coupled to a drive mechanism allowing it to rotate on itself around the forestay to wind the sail.

Le document FR-A-2.539.099 décrit un enrouleur de voile en profilé d'aluminium comportant deux tubes cylindriques concentriques. Le tube interne est destiné à recevoir le câble d'étai, tandis que le tube externe possède une fente longitudinale pour le passage de la voile dont la ralingue est emprisonnée dans un logement à section circulaire formé par deux parois incurvées reliant les tubes l'un à l'autre. Le tube interne possède lui-même une fente longitudinale mettant en communication les logements pour le câble d'étai et la ralingue. Ces deux éléments sont maintenus en place à l'intérieur de leurs logements respectifs par l'intermédiaire d'une gaine en matière plastique ayant une section transversale en forme de huit. Un tel enrouleur correspond au préambule de la revendication 1.The document FR-A-2,539,099 describes a sail furler in aluminum profile comprising two concentric cylindrical tubes. The inner tube is intended to receive the forestay cable, while the outer tube has a longitudinal slot for the passage of the sail, the headline of which is trapped in a housing of circular section formed by two curved walls connecting the tubes. to the other. The inner tube itself has a longitudinal slot connecting the housings for the forestay cable and the rope. These two elements are held in place inside their respective housings by means of a plastic sheath having an eight-shaped cross section. Such a reel corresponds to the preamble of claim 1.

Cette conception d'enrouleur de voile n'est pas exempte d'inconvénients. Tout d'abord, il est évident que, sous l'effet du vent, l'enrouleur présente une résistance à la flexion relativement limitée, de sorte que la voile, en s'enroulant, risque de former des plis et des bourrelets qui peuvent entraîner sa détérioration rapide. Certes, cet inconvénient peut être combattu en augmentant l'épaisseur des tubes, mais alors le poids de l'enrouleur devient important, ce qui n'est pas avantageux. Par ailleurs, il est difficile d'exclure le risque que, sous fort vent, la structure « s'ouvre » et laisse échapper la gaine en matière plastique.This sail furling design is not without drawbacks. First of all, it is obvious that, under the effect of the wind, the furler has a relatively limited resistance to bending, so that the sail, while rolling, risks forming folds and beads which can cause its rapid deterioration. Admittedly, this drawback can be overcome by increasing the thickness of the tubes, but then the weight of the reel becomes large, which is not advantageous. Furthermore, it is difficult to exclude the risk that, in strong winds, the structure "opens" and lets out the plastic sheath.

Le document US-A-4.090.461 décrit un enrouleur en profilé d'aluminium qui est formé également de deux tubes concentriques. Ceux-ci sont reliés l'un à l'autre par une portion massive remplissant la moitié de l'espace qui les sépare et, à l'opposé, par une paroi longitudinale unique. La portion massive est pourvue d'une rainure en T dans laquelle est engagée une pièce spéciale possédant une rainure en C qui sert de logement pour la ralingue. Ce type d'enrouleur est naturellement assez lourd.Document US-A-4,090,461 describes a reel of aluminum profile which is also formed of two concentric tubes. These are connected to each other by a massive portion filling half of the space between them and, conversely, by a single longitudinal wall. The massive portion is provided with a T-groove in which is engaged a special part having a C-groove which serves as a housing for the rope. This type of reel is naturally quite heavy.

La présente invention a pour but de fournir un enrouleur de voile ne présentant pas les inconvénients des systèmes connus, c'est-à-dire qui soit à la fois léger et résistant.The object of the present invention is to provide a sail furler which does not have the drawbacks of known systems, that is to say which is both light and resistant.

De façon plus précise, l'enrouleur de voile selon l'invention est du type constitué par un profilé étiré en métal ou alliage léger qui est réalisé en une seule pièce et comporte deux tubes cylindriques concentriques dont l'un, interne, est destiné à recevoir le câble d'étai et dont l'autre, externe, possède une fente longitudi- i-nale permettant le passage de la voile dont la ralingue peut être retenue entre les deux tubes, et deux parois longitudinales rendant les tubes solidaires l'un de l'autre et aboutissant aux bords de la fente, lesdites parois ayant des profils incurvés de manière à former un logement à section grossièrement circulaire destiné à recevoir et emprisonner la ralingue de la voile. Cet enrouleur est caractérisé en ce qu'il comporte, en outre, une pluralité de parois longitudinales réparties dans l'espace annulaire entre les tubes et les réunissant ensemble et en ce que le tube interne présente une paroi continue définissant un logement cylindrique pour le câble d'étai.More specifically, the sail furler according to the invention is of the type constituted by a drawn profile of metal or light alloy which is produced in one piece and comprises two concentric cylindrical tubes, one of which, internal, is intended for receive the forestay cable and the other, external, has a longitudinal slot allowing the passage of the sail, the rope of which can be retained between the two tubes, and two longitudinal walls making the tubes integral one on the other and leading to the edges of the slot, said walls having curved profiles so as to form a housing with a roughly circular section intended to receive and trap the headline of the sail. This reel is characterized in that it further comprises a plurality of longitudinal walls distributed in the annular space between the tubes and joining them together and in that the internal tube has a continuous wall defining a cylindrical housing for the cable forestay.

Les caractéristiques de l'invention, ainsi que ses avantages, ressortiront de la description qui va suivre, faite en regard des dessins annexés et donnant, à titre explicatif mais nullement limitatif, une forme de réalisation avantageuse d'un tel enrouleur. Sur ces dessins :

  • - la figure 1 montre un voilier muni d'un enrouleur de voile ; et
  • - la figure 2 donne une vue en coupe radiale d'un enrouleur pour deux voiles selon l'invention.
The characteristics of the invention, as well as its advantages, will emerge from the description which follows, given with reference to the appended drawings and giving, by way of explanation but in no way limiting, an advantageous embodiment of such a reel. In these drawings:
  • - Figure 1 shows a sailboat fitted with a sail furler; and
  • - Figure 2 gives a radial sectional view of a reel for two sails according to the invention.

La figure 1 représente schématiquement un voilier qui comprend, pour l'essentiel, une coque 1, un mât 2 fixé verticalement à peu près au centre de la coque, et un étai 3, généralement en câble d'acier, reliant le haut du mât à l'avant du bateau. La voilure, de son côté, est composée d'une grand'voile 4 fixée par un bord au mât 2 et, à l'avant du bateau, d'une voile avant 5, appelée génois ou foc. Celle-ci est fixée par sa ralingue à un enrouleur 10 monté sur l'étai 3 autour duquel il est libre de tourner.FIG. 1 schematically represents a sailboat which essentially comprises a hull 1, a mast 2 fixed vertically approximately at the center of the hull, and a forestay 3, generally made of steel cable, connecting the top of the mast at the front of the boat. The wing, for its part, is composed of a mainsail 4 fixed by an edge to the mast 2 and, at the front of the boat, of a front sail 5, called genoa or jib. This is fixed by its rope to a reel 10 mounted on the forestay 3 around which it is free to turn.

A son extrémité inférieure, c'est-à-dire celle qui est proche de la coque 1 du voilier, l'enrouleur 10 est couplé à des moyens d'entraînement permettant de le mettre en rotation autour de l'étai. Ces moyens, connus en soi, comprennent, par exemple, une poulie 11 montée sur l'enrouleur 10, sur laquelle est enroulée une corde 12. Une traction sur celle-ci permet de faire tourner la poulie et ainsi d'enrouler la voile 5 autour de l'enrouleur 10. Une fois l'enroulement terminé, le dispositif peut être bloqué par des moyens de verrouillage non représentés. Les moyens d'entraînement peuvent, bien entendu, inclure un moteur électrique pour éviter toute intervention manuelle.At its lower end, that is to say that which is close to the hull 1 of the sailboat, the furler 10 is coupled to drive means making it possible to rotate it around the forestay. These means, known per se, include, for example, a pulley 11 mounted on the reel 10, on which a rope 12 is wound. A traction on the latter makes it possible to rotate the pulley and thus to wind the sail 5 around the reel 10. Once the winding is finished, the device can be blocked by locking means, not shown. The drive means can, of course, include an electric motor to avoid any manual intervention.

On se référera maintenant à la figure 2 qui montre, dans une vue en coupe radiale, un exemple de structure avantageuse d'un enrouleur 10 selon l'invention, permettant l'enroulement simultané de deux voiles. Cet enrouleur est constitué par un profilé en métal ou alliage léger, tel que l'aluminium, qui est réalisé par étirage en une seule pièce et comporte principalement deux tubes cylindriques concentriques, l'un interne 13, l'autre externe 14. Le tube interne 13 délimite un conduit circulaire 15 pour le passage du câble de l'étai 3. Des bagues en plastique (non représentées) réparties le long du tube évitent le contact direct entre le câble et l'enrouleur et facilitent la rotation de ce dernier.We will now refer to FIG. 2 which shows, in a radial section view, an example of an advantageous structure of a reel 10 according to the invention, allowing the simultaneous winding of two sails. This reel is formed by a metal or light alloy profile, such as aluminum, which is produced by drawing in one piece and mainly comprises two concentric cylindrical tubes, one internal 13, the other external 14. The tube internal 13 defines a circular conduit 15 for the passage of the forestay cable 3. Plastic rings (not shown) distributed along the tube avoid direct contact between the cable and the reel and facilitate the rotation of the latter.

Comme déjà mentionné, l'enrouleur décrit est destiné à recevoir deux voiles. C'est pour cette raison que le tube externe 14 possède deux fentes longitudinales parallèles 16, proches l'une de l'autre. Ces fentes ont une largeur juste suffisante pour permettre le passage de la voile mais insuffisante pour autoriser celui de la ralingue.As already mentioned, the reel described is intended to receive two sails. It is for this reason that the outer tube 14 has two parallel longitudinal slots 16, close to each other. These slots have a width just sufficient to allow the passage of the sail but insufficient to allow that of the headline.

Des parois longitudinales 17, au nombre de sept dans l'exemple représenté, sont réparties à peu près régulièrement dans l'espace annulaire entre les deux tubes et assurent leur solidarisation l'un avec l'autre. Trois de ces parois, désignées par la référence 17a, sont planes et orientées selon des rayons du tube 14. Par contre, les quatre autres parois, désignées par la référence 17b, dont les extrémités aboutissent aux bords des fentes 16, ont des profils incurvés de manière à former deux logements 18 à section grossièrement circulaire destinés à recevoir et emprisonner les ralingues.Longitudinal walls 17, seven in number in the example shown, are distributed more or less regularly in the annular space between the two tubes and ensure their joining with one another. Three of these walls, designated by the reference 17a, are planar and oriented along radii of the tube 14. On the other hand, the other four walls, designated by the reference 17b, the ends of which end at the edges of the slots 16, have curved profiles so as to form two housings 18 of roughly circular section intended to receive and trap the slings.

L'enrouleur selon l'invention peut être réalisé en plusieurs diamètres, selon la taille du bateau. Typiquement, pour un enrouleur ayant une longueur de 17 mètres, les deux tubes ont des diamètres extérieurs de 5,5 cm et 2,7 cm respectivement, et une épaisseur de 2 mm. Les parois longitudinales reliant les tubes l'un à l'autre ont une épaisseur de 2 mm.The reel according to the invention can be produced in several diameters, depending on the size of the boat. Typically, for a reel having a length of 17 meters, the two tubes have outside diameters of 5.5 cm and 2.7 cm respectively, and a thickness of 2 mm. The longitudinal walls connecting the tubes to each other have a thickness of 2 mm.

Les avantages de la présente invention ressortent de la description qui précède. Il est clair, en effet, que d'une part la présence de parois longitudinales réparties dans l'espace entre les deux tubes et d'autre part le fait que le tube interne possède une paroi continue confèrent à l'enrouleur une excellente résistance sans que son poids soit excessif.The advantages of the present invention appear from the foregoing description. It is clear, in fact, that on the one hand the presence of longitudinal walls distributed in the space between the two tubes and on the other hand the fact that the internal tube has a continuous wall give the reel excellent resistance without that his weight is excessive.

Claims (2)

1. A sail furling roller for a boat, consisting of a single piece drawn profiled member (10) of light metal or alloy and comprising a pair of concentric cylindrical tubes with the inner tube (13) being intended to accommodate a stay cable and with the outer tube (14) having a longitudinal slot (16) through which may pass a sail whose bolt rope may be retained between the two tubes, and a pair of longitudinal walls (17b) that render the tubes solid with one another and which end at the edges of the slot, said walls having curved profiles such as to form a housing (18) of roughly circular cross-section for receiving and holding the sail's bolt rope, characterized in that it further comprises a plurality of longitudinal walls (17a) that are distributed in the annular space between the tubes and which unite them together, and in that the inner tube (13) has a continuous wall that defines a cylindrical housing (15) for the stay cable:
2. A sail furling roller according to claim 1, characterized in that it is made of aluminium.
EP85109038A 1984-07-27 1985-07-19 Roll-reefing device for sailing boats Expired EP0171648B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3638/84 1984-07-27
CH3638/84A CH657101A5 (en) 1984-07-27 1984-07-27 SAIL FURLER FOR BOAT.

Publications (2)

Publication Number Publication Date
EP0171648A1 EP0171648A1 (en) 1986-02-19
EP0171648B1 true EP0171648B1 (en) 1988-09-28

Family

ID=4260289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85109038A Expired EP0171648B1 (en) 1984-07-27 1985-07-19 Roll-reefing device for sailing boats

Country Status (4)

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US (1) US4637334A (en)
EP (1) EP0171648B1 (en)
CH (1) CH657101A5 (en)
DE (1) DE3565235D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5463970A (en) 1995-03-13 1995-11-07 Harken, Inc. Furling foil for sailing vessel
US6113059A (en) * 1997-10-10 2000-09-05 Engineered Metals Corporation Dead shaft idler
ITRA20120002A1 (en) * 2012-03-07 2013-09-08 Renzo Greghi WINDING DEVICE FOR SAILS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454640A (en) * 1945-06-30 1948-11-23 Trail A Boat Company Mast for marine craft
US3851609A (en) * 1972-08-21 1974-12-03 L Stearn Two groove headstay
US4090461A (en) * 1977-05-25 1978-05-23 Anthony Rusich Sail boat mast containing sail furling device with swivel haul-up means
FR2395883A1 (en) * 1977-06-28 1979-01-26 Bany Raymond Mast for sailing vessel - has composite hollow construction of wooden stringers and plywood plates with plywood outer covering
FR2519316A1 (en) * 1982-01-04 1983-07-08 Proengin Sarl Rigging winch for marine vessel - has cylindrical drum in sections with multiple grooves for sail handling
FR2539099B1 (en) * 1983-01-07 1988-06-24 Normandie Voiles WINDING TUBE AND SAIL REEL HAVING SUCH A TUBE
GB2133363B (en) * 1983-01-13 1986-04-23 Proengin Reefing sails

Also Published As

Publication number Publication date
US4637334A (en) 1987-01-20
CH657101A5 (en) 1986-08-15
DE3565235D1 (en) 1988-11-03
EP0171648A1 (en) 1986-02-19

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