EP0318397A1 - Main sail roll-furlers - Google Patents

Main sail roll-furlers Download PDF

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Publication number
EP0318397A1
EP0318397A1 EP88402979A EP88402979A EP0318397A1 EP 0318397 A1 EP0318397 A1 EP 0318397A1 EP 88402979 A EP88402979 A EP 88402979A EP 88402979 A EP88402979 A EP 88402979A EP 0318397 A1 EP0318397 A1 EP 0318397A1
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EP
European Patent Office
Prior art keywords
tube
sail
furler
halyard
pulley
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Granted
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EP88402979A
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German (de)
French (fr)
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EP0318397B1 (en
Inventor
Jean-Michel Despres
Jean-Marie Pasdelou
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Individual
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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
    • B63H9/1035—Reefing by furling around or inside the mast

Definitions

  • the present invention relates to improvements made to devices, called reels, intended to modify, by winding, the surface of a sail and constituted, essentially, by a tube or profile, rotating around its axis under the action of a system. control, tube or profile of which the sail is made integral and around which it winds.
  • the invention is intended to apply more particularly, but not exclusively, to mainsail furlers.
  • This reel whose tube or profile 1 is arranged in the center of a centering tube 2 which is coaxial with it, is, as shown in Figures 1 to 3 of the accompanying drawings, either placed outside the mast 3 or at the inside the mast, as shown in Figure 4.
  • the tube or profile 1 must be placed at the shortest distance A from the mast.
  • the elements which determine this distance between the rear face of the mast and the winding tube axis are on the one hand the diameter B of the tube with the sail completely rolled up (Fig. 2), on the other hand the diameter C of the winding control 4 which rotates the reel tube (see Figure 5).
  • the diameter C of the control 4 should be, as far as it is concerned, as large as possible so as to reduce, as far as possible, the effort to be exerted on the rope control to practice the winding of the sail in optimal conditions.
  • one of these systems provides for control by a storage drum 4, in this case it is necessary to separate the winding profile from the mast by a significant distance A ', at least equal to the sum of the diameter D of the drum and of a quantity equal to the radius of dimension C.
  • another system uses a worm. If, in this case, the diameter of the body of the screw is less than the distance from the axis of the winding tube, to the rear face of the mast, this device has the disadvantage of storing the control line and being therefore very long and difficult to position on the mast.
  • the invention makes it possible to avoid these various drawbacks and to minimize the distance between the rear of the mast and the reel.
  • the torque exerted on the winding control can be very large because the radius E of the toothed pulley is significantly greater than the radius of the winding tube 1.
  • the winding system constituted by the toothed pulley can also, as shown in Figure 8, be provided above the gooseneck (not shown) in a cutout made in the mast.
  • the torque which will have to be exerted for the rotation of the tube will be greater than in the case where the system is housed in the mast foot or under the latter but it will still be less important than that it is necessary to develop with known systems.
  • Another improvement of the invention consists of a system for stretching the sail on its furler.
  • the sail is fixed in its lower part, on the base of the tube or on the drum controlling the winding, the upper part of the sail being able to be tensioned by means of a halyard.
  • the disadvantage lies in the fact that, when the winding tube turns, the halyard is also rotated, which causes it to be wound up, by about 10 to 20 turns over a very low height of 10 to 30 cm. In most cases, the halyard breaks or the hose reel becomes blocked.
  • the system according to the invention eliminates these drawbacks.
  • the sail 8 is stretched in the upper part by a halyard 9 passing through a pulley 10 secured to the winding tube 1 and therefore rotating with it.
  • the halyard descends in the axis of the winding tube and, in the lower part of the winding control, it comes out by a pulley 11, integral with a fixed part, for example, in the case treated, of the shaft 12 , fixed in rotation, the winding drum 13 or any other part of the mast or of the boat. This pulley cannot therefore rotate.
  • the hauling system according to the invention by internal halyard, makes it possible to quickly haul a sail as with a cursor, quickly and efficiently and also to quickly sail the sail without the need to lengthen the halyard.
  • the system according to the invention therefore makes it possible to combine the advantages of known systems by eliminating their disadvantages. It is very reliable because it does not have rotating parts and is very economical due to the very limited number of these parts.
  • the system according to the invention can be applied both to mainsail furlers mounted outside the mast and to mainsail furlers integrated in the mast also to jib furlers.

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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)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Road Paving Machines (AREA)
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  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

Sail furler, more particularly a mainsail furler, consisting of a tube (1) or similar profile rotating about its axis under the action of a control system (4), with which tube or profile the sail is made fast and about which it is furled, characterised in that the control system, consisting of a notched pulley (6), is housed in the foot of the mast (5) or beneath the foot of the mast. …<??>The furler comprises, with a view to hoisting the sail, a halyard (9) passing, in the upper part of the furler tube, around a pulley (10) integrally connected to the tube and rotating therewith, this halyard passing through the tube and emerging from the furler via a pulley (11) integrally connected to a fixed part of the furler. …<IMAGE>…

Description

La présente invention concerne des perfectionnements apportés aux dispositifs, appelés enrouleurs, destinés à modifier, par enroulement, la surface d'une voile et constitués, essentiellement, par un tube ou profil, tournant autour de son axe sous l'action d'un système de commande, tube ou profil duquel la voile est rendue solidaire et autour duquel elle s'enroule.The present invention relates to improvements made to devices, called reels, intended to modify, by winding, the surface of a sail and constituted, essentially, by a tube or profile, rotating around its axis under the action of a system. control, tube or profile of which the sail is made integral and around which it winds.

L'invention est destinée à s'appliquer plus particulièrement, mais non exclusivement, aux enrouleurs de grand-voile.The invention is intended to apply more particularly, but not exclusively, to mainsail furlers.

Cet enrouleur, dont le tube ou profil 1 est disposé au centre d'un tube 2 de centrage qui lui est coaxial est, comme le montrent les figures 1 à 3 des dessins annexés, soit placé à l'extérieur du mât 3 soit à l'intérieur du mât, comme le montre la figure 4.This reel, whose tube or profile 1 is arranged in the center of a centering tube 2 which is coaxial with it, is, as shown in Figures 1 to 3 of the accompanying drawings, either placed outside the mast 3 or at the inside the mast, as shown in Figure 4.

Pour des raisons évidentes de rendement aérodynamique, le tube ou profil 1 doit être placé à une distance A aussi faible que possible du mât.For obvious reasons of aerodynamic efficiency, the tube or profile 1 must be placed at the shortest distance A from the mast.

Les éléments qui déterminent cette distance entre la face arrière du mât et l'axe tube d'enroulement sont d'une part le diamètre B du tube avec la voile complètement enroulée (Fig. 2), d'autre part le diamètre C de la commande d'enroulement 4 qui entraîne en rotation le tube de l'enrouleur (voir figure 5).The elements which determine this distance between the rear face of the mast and the winding tube axis are on the one hand the diameter B of the tube with the sail completely rolled up (Fig. 2), on the other hand the diameter C of the winding control 4 which rotates the reel tube (see Figure 5).

Si le diamètre B n'est pas très important, le diamètre C de la commande 4 devrait être, pour ce qui la concerne, le plus grand possible de façon à diminuer, dans toute la mesure possible, l'effort à exercer sur le cordage de commande pour pratiquer l'enroulement de la voile dans les conditions optimales.If the diameter B is not very large, the diameter C of the control 4 should be, as far as it is concerned, as large as possible so as to reduce, as far as possible, the effort to be exerted on the rope control to practice the winding of the sail in optimal conditions.

Les systèmes actuels de commande d'enroulement nécessitent d'exercer un effort important sur le cordage pour commander l'enroulement.Current winding control systems require exerting a significant effort on the rope to control the winding.

Ces systèmes sont les suivants :
- l'un de ces systèmes prévoit la commande par un tambour emmagasineur 4, dans ce cas il faut écarter du mât le profil enrouleur d'une distance A' importante, au moins égale à la somme du diamètre D tambour et d'une quantité égale au rayon de la cote C.
- un autre système fait appel à une vis sans fin. Si, dans ce cas, le diamètre du corps de la vis est inférieur à la distance de l'axe du tube enrouleur, à la face arrière du mât, ce dispositif présente l'inconvénient de stocker le cordage de commande et d'être par conséquent très long et difficile à positionner sur le mât.These systems are:
- one of these systems provides for control by a storage drum 4, in this case it is necessary to separate the winding profile from the mast by a significant distance A ', at least equal to the sum of the diameter D of the drum and of a quantity equal to the radius of dimension C.
- another system uses a worm. If, in this case, the diameter of the body of the screw is less than the distance from the axis of the winding tube, to the rear face of the mast, this device has the disadvantage of storing the control line and being therefore very long and difficult to position on the mast.

L'invention permet d'éviter ces différents inconvénients et de réduire au maximum la distance séparant l'arrière du mât de l'enrouleur.The invention makes it possible to avoid these various drawbacks and to minimize the distance between the rear of the mast and the reel.

Elle consiste essentiellement, comme le montre la figure 6, à loger dans le pied de mât 5 ou sous le pied de mât, le système de commande d'enroulement, ce système étant avantageusement consitué par une poulie crantée, en raison des avantages que présente un tel moyen :
- faible encombrement, réversibilité du sens de rotation de l'enrouleur, possibilité de sortie du cordage 7 de commande soit dans l'axe du mât, soit transversalement à ce dernier, comme représenté sur la figure 7.It essentially consists, as shown in FIG. 6, in accommodating in the mast foot 5 or under the mast foot, the winding control system, this system being advantageously constituted by a toothed pulley, because of the advantages which it presents such a way:
- small footprint, reversibility of the direction of rotation of the reel, possibility of output of the control line 7 either in the axis of the mast, or transversely to the latter, as shown in FIG. 7.

Dans ces conditions, grâce à l'invention il n'y a plus de relation directe entre le diamètre de la commande d'enroulement et la distance entre la face arrière du mât et l'axe du tube 1 d'enroulement.Under these conditions, thanks to the invention there is no longer a direct relationship between the diameter of the winding control and the distance between the rear face of the mast and the axis of the winding tube 1.

Le couple exercé sur la commande d'enroulement peut être très important car le rayon E de la poulie crantée est nettement supérieur au rayon du tube enrouleur 1.The torque exerted on the winding control can be very large because the radius E of the toothed pulley is significantly greater than the radius of the winding tube 1.

Le système d'enroulement constitué par la poulie crantée peut également, comme représenté sur la figure 8, être prévu au-dessus du vit-de-mulet (non représenté) dans une découpe pratiquée dans le mât. Dans ce cas, le couple qui devra être exercé pour la mise en rotation du tube sera plus important que dans le cas où le système est logé dans le pied de mât ou sous ce dernier mais il sera tout de même moins important que celui qu'il est nécessaire de développer avec les systèmes connus.The winding system constituted by the toothed pulley can also, as shown in Figure 8, be provided above the gooseneck (not shown) in a cutout made in the mast. In this case, the torque which will have to be exerted for the rotation of the tube will be greater than in the case where the system is housed in the mast foot or under the latter but it will still be less important than that it is necessary to develop with known systems.

Un autre perfectionnement de l'invention consiste en un système d'étarquage de la voile sur son enrouleur.Another improvement of the invention consists of a system for stretching the sail on its furler.

Dans les systèmes connus, la voile est fixée dans sa partie basse, sur la base du tube ou sur le tambour commandant l'enroulement, la partie haute de la voile pouvant être tendue grâce à une drisse.In known systems, the sail is fixed in its lower part, on the base of the tube or on the drum controlling the winding, the upper part of the sail being able to be tensioned by means of a halyard.

L'inconvénient réside dans le fait que, lorsque le tube enrouleur tourne, la drisse est également mise en rotation, ce qui provoque son enroulement, d'environ 10 à 20 tours sur une hauteur très faible de 10 à 30 cm. Dans la plupart des cas, la drisse casse ou l'enrouleur se bloque.The disadvantage lies in the fact that, when the winding tube turns, the halyard is also rotated, which causes it to be wound up, by about 10 to 20 turns over a very low height of 10 to 30 cm. In most cases, the halyard breaks or the hose reel becomes blocked.

Pour pallier cet inconvénient il existe deux principaux moyens de tendre la drisse :
- le premier consiste à utiliser une drisse du bateau et à interposer entre la voile et la drisse, dans sa partie haute, un emerillon qui empêche la drisse de tourner. Il s'agit là cependant d'une solution coûteuse.
- une autre solution consiste à utiliser une drisse propre à l'enrouleur qui tient la voile en tête et redescend grâce à une poulie.To overcome this drawback there are two main ways of tightening the halyard:
- the first consists in using a halyard from the boat and interposing between the sail and the halyard, in its upper part, a swivel which prevents the halyard from turning. However, this is an expensive solution.
- another solution consists in using a halyard specific to the furler which holds the sail in head and descends thanks to a pulley.

Ce système est très mais exige du temps pour monter la voile sur l'enrouleur et l'étarquer. De plus, la drisse est généralement trop courte lorsque l'on veut affaler la voile. Il est alors indispensable de rallonger la drisse avec un bout. Il faut en outre, prévoir un système d'étarquage par palan ou transfilage pour tendre la drisse mais le montage et le démontage de la voile sur son enrouleur sont alors des opérations longues à réaliser.This system is very but takes time to mount the sail on the reel and to set it up. In addition, the halyard is generally too short when you want to lower the sail. It is therefore essential to lengthen the halyard with one end. It is also necessary to provide a hauling or tackling system to tension the halyard, but the assembly and disassembly of the sail on its furler are then long operations to perform.

Le système suivant l'invention écarte ces inconvénients.The system according to the invention eliminates these drawbacks.

Conformément à l'invention (voir figure 9), la voile 8 est tendue dans la partie haute par une drisse 9 passant dans une poulie 10 solidaire du tube enrouleur 1 et tournant donc avec lui. La drisse descend dans l'axe du tube enrouleur et, dans la partie inférieure de la commande d'enroulement, elle ressort par une poulie 11, solidaire d'une partie fixe, par exemple, dans le cas traité, de l'arbre 12, fixe en rotation, du tambour d'enroulement 13 ou de toute autre partie du mât ou du bateau. Cette poulie ne peut donc pas tourner.According to the invention (see Figure 9), the sail 8 is stretched in the upper part by a halyard 9 passing through a pulley 10 secured to the winding tube 1 and therefore rotating with it. The halyard descends in the axis of the winding tube and, in the lower part of the winding control, it comes out by a pulley 11, integral with a fixed part, for example, in the case treated, of the shaft 12 , fixed in rotation, the winding drum 13 or any other part of the mast or of the boat. This pulley cannot therefore rotate.

Le résultat est le suivant : lorsque l'enrouleur de voile tourne par exemple de 15 tours, la drisse tourne aussi de 15 tours en haut mais ne tourne pas en bas et, compte tenu de la distance séparant le haut du bas qui peut être de 10 à 20 mètres, la drisse encaisse sans problème ce vrillage de 1 à 2 tours par mètre. La répartition sur une longueur considérable du vrillage de la voile n'a donc pas de conséquence fâcheuse sur son intégrité et d'autre part ne peut entraîner le blocage du système d'enroulement.The result is as follows: when the sail furler turns for example 15 turns, the halyard also turns 15 turns up but does not turn down and, taking into account the distance separating the top from the bottom which can be 10 to 20 meters, the halyard can easily take this twist from 1 to 2 turns per meter. The distribution over a considerable length of the twist of the sail therefore has no unfortunate consequence on its integrity and on the other hand can not cause the blocking of the winding system.

Le système d'étarquage suivant l'invention, par drisse interne, permet de façon simple d'étarquer une voile comme avec un curseur, rapidement et efficacement et également d'affaler la voile rapidement sans qu'il soit nécessaire de rallonger la drisse.The hauling system according to the invention, by internal halyard, makes it possible to quickly haul a sail as with a cursor, quickly and efficiently and also to quickly sail the sail without the need to lengthen the halyard.

Le système suivant l'invention permet donc de combiner les avantages des systèmes connus en supprimant leurs inconvénients. Il est très fiable car il ne comporte pas de pièces en rotation et très économique en raison du nombre très limité de ces pièces.The system according to the invention therefore makes it possible to combine the advantages of known systems by eliminating their disadvantages. It is very reliable because it does not have rotating parts and is very economical due to the very limited number of these parts.

Le système suivant l'invention peut s'appliquer aussi bien aux enrouleurs de grand-voile montés à l'extérieur du mât qu'aux enrouleurs de grand-voile intégrés au mât également aux enrouleurs de foc.The system according to the invention can be applied both to mainsail furlers mounted outside the mast and to mainsail furlers integrated in the mast also to jib furlers.

Claims (5)

1 - Enrouleur de voile, plus particulièrement enrouleur de grand-voile, constitué par un tube (1) ou profil analogue tournant autour de son axe sous l'action d'un système de commande (4), tube ou profil duquel la voile est rendue solidaire et autour duquel elle s'enroule, caractérisé en ce que le système de commande est logé dans le pied de mât (5) ou sous le pied de mât.1 - Sail furler, more particularly mainsail furler, constituted by a tube (1) or similar profile rotating around its axis under the action of a control system (4), tube or profile from which the sail is made integral and around which it is wound, characterized in that the control system is housed in the mast foot (5) or under the mast foot. 2 - Enrouleur de voile suivant la revendication 1, caractérisé en ce que le système de commande est constitué par une poulie crantée (6).2 - Sail furler according to claim 1, characterized in that the control system is constituted by a toothed pulley (6). 3 - Enrouleur de voile suivant la revendication 2, caractérisé en ce que le système de commande constitué par une poulie crantée est disposé au-dessus du vit-de-mulet dans une découpe pratiquée dans le mât.3 - Sail furler according to claim 2, characterized in that the control system constituted by a toothed pulley is disposed above the mullet in a cutout made in the mast. 4 - Enrouleur de voile suivant l'une quelconque des revendications précédentes, comportant, en vue de l'étarquage de la voile, une drisse (9) passant dans la partie haute du tube enrouleur sur une poulie (10) solidaire du tube (1) et tournant avec lui, caractérisé en ce que la drisse (9) après avoir passé dans le tube, sort de l'enrouleur par une poulie (11) solidaire d'une partie fixe de l'enrouleur.4 - Sail furler according to any one of the preceding claims, comprising, for the purpose of stretching the sail, a halyard (9) passing in the upper part of the furling tube on a pulley (10) integral with the tube (1 ) and turning with it, characterized in that the halyard (9) after having passed through the tube, leaves the reel by a pulley (11) secured to a fixed part of the reel. 5 - Enrouleur suivant la revendication 4, caractérisé en ce que la poulie (11) sur laquelle passe la drisse à sa sortie de l'enrouleur est solidaire de l'arbre (12) fixe en rotation du tambour (13) d'enroulement du système de commande de l'enrouleur.5 - Reel according to claim 4, characterized in that the pulley (11) on which the halyard passes at its exit from the reel is secured to the shaft (12) fixed in rotation of the drum (13) for winding the rewinder control system.
EP88402979A 1987-11-26 1988-11-25 Main sail roll-furlers Expired - Lifetime EP0318397B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8716407 1987-11-26
FR8716407A FR2623772B1 (en) 1987-11-26 1987-11-26 IMPROVEMENTS ON VEHICLE REELS, ESPECIALLY ON MAINSAILS

Publications (2)

Publication Number Publication Date
EP0318397A1 true EP0318397A1 (en) 1989-05-31
EP0318397B1 EP0318397B1 (en) 1992-05-27

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Application Number Title Priority Date Filing Date
EP88402979A Expired - Lifetime EP0318397B1 (en) 1987-11-26 1988-11-25 Main sail roll-furlers

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US (1) US4949660A (en)
EP (1) EP0318397B1 (en)
DE (1) DE3871498D1 (en)
ES (1) ES2032992T3 (en)
FR (1) FR2623772B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233948A (en) * 1989-07-21 1991-01-23 David Ross Clifford Berridge Cowling for stay and furled sail of sailing boat

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO940016L (en) * 1994-01-04 1995-07-05 Thoresen Per Gunnar Mast design for roller sails
US5809941A (en) * 1996-04-16 1998-09-22 Allaire; Ernest Lee High efficiency hot water heater for recreational vehicles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132620A (en) * 1960-01-11 1964-05-12 Andrew T Court Sailboat
US4267790A (en) * 1978-04-20 1981-05-19 Hood Ralph S Sail furling and reefing apparatus
EP0076878A2 (en) * 1981-10-08 1983-04-20 Carl Joseph Michael Hutton Sail storage and reefing device
US4480570A (en) * 1982-10-05 1984-11-06 Metalmast Marine, Inc. Mainsail furling mast assembly and mast construction therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240369A (en) * 1978-09-25 1980-12-23 Molz Harold A Mainsail and/or mizzensail furling device
US4526122A (en) * 1984-03-08 1985-07-02 Kluckhuhn Fred H Load distribution and anti-sag means for luff furling sails
FR2603551B1 (en) * 1986-09-10 1991-04-19 Proengin VEHICLE REDUCTION DEVICE FOR SAILING BOAT AND MATT SUITABLE FOR RECEIVING SUCH A DEVICE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132620A (en) * 1960-01-11 1964-05-12 Andrew T Court Sailboat
US4267790A (en) * 1978-04-20 1981-05-19 Hood Ralph S Sail furling and reefing apparatus
EP0076878A2 (en) * 1981-10-08 1983-04-20 Carl Joseph Michael Hutton Sail storage and reefing device
US4480570A (en) * 1982-10-05 1984-11-06 Metalmast Marine, Inc. Mainsail furling mast assembly and mast construction therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233948A (en) * 1989-07-21 1991-01-23 David Ross Clifford Berridge Cowling for stay and furled sail of sailing boat

Also Published As

Publication number Publication date
US4949660A (en) 1990-08-21
FR2623772B1 (en) 1992-02-28
EP0318397B1 (en) 1992-05-27
FR2623772A1 (en) 1989-06-02
DE3871498D1 (en) 1992-07-02
ES2032992T3 (en) 1993-03-01

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