EP2189369A1 - Boom brake - Google Patents

Boom brake Download PDF

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Publication number
EP2189369A1
EP2189369A1 EP08169751A EP08169751A EP2189369A1 EP 2189369 A1 EP2189369 A1 EP 2189369A1 EP 08169751 A EP08169751 A EP 08169751A EP 08169751 A EP08169751 A EP 08169751A EP 2189369 A1 EP2189369 A1 EP 2189369A1
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EP
European Patent Office
Prior art keywords
boom
brake
grooves
rope
spiral
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EP08169751A
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German (de)
French (fr)
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EP2189369B1 (en
Inventor
Raphaël van Vlodorp
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Individual
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Individual
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Priority to EP08169751A priority Critical patent/EP2189369B1/en
Priority to AT08169751T priority patent/ATE551255T1/en
Publication of EP2189369A1 publication Critical patent/EP2189369A1/en
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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
    • B63H9/1078—Boom brakes

Definitions

  • the present invention relates to a device intended to be fixed or to be integrated into the boom of a sailboat to control the movement. It relates in particular to a boom brake which, in cooperation with a rope, will slow the abrupt movements of the boom around the mast in case of untimely jibe.
  • boom brakes generally based on braked pulleys or rope deflections (Wichard) that can handle boom travel.
  • the documents FR 2 640 932 ; EP 0 630 806 and US 6,085,679 disclose a boom brake having a relatively complex configuration based on a set of pulleys and guiding members of the rope. The deflections around the pulleys determine the braking level of the travel of the boom.
  • the document EP 0 133 713 discloses a boom brake based on a spiral tube positioned within a housing, the rope being braked by the passage within the tube.
  • the relationship between the diameter of the tube and the diameter of the rope determines the level of braking that can be achieved.
  • the document FR 2 521 096 is also based on the principle of a deviation of the rope slipped into a spiral tube.
  • the present invention aims to provide a boom brake that does not have the disadvantages of the state of the art.
  • the invention also relates to a sailboat boom having an integrated boom brake.
  • the present invention discloses a boom brake having a ferrule which has on its outer periphery grooves arranged in a spiral whose depth is adapted to the diameter of the rope intended, in use, to be wound in a spiral around said ferrule to brake the boom.
  • the present invention also discloses a sailboat boom having an integrated boom brake, said boom brake having a shell which has on its outer periphery grooves arranged in a spiral whose depth is adapted to the diameter of the rope intended, in use, to be spirally wound around said ferrule to brake the boom.
  • the present invention discloses a sailboat comprising a boom with an integrated boom brake, said boom brake comprising a shell which has on its outer periphery grooves arranged in a spiral whose depth is adapted to the diameter of the rope intended, in use to be spirally wound around said ferrule to brake the boom.
  • said boom brake comprising a shell which has on its outer periphery grooves arranged in a spiral whose depth is adapted to the diameter of the rope intended, in use to be spirally wound around said ferrule to brake the boom.
  • FIGS. 1 and 2 represent three-dimensional views of the boom brake according to a first embodiment of the invention.
  • the figure 3 represents the boom brake according to a first embodiment of the invention alone and wound by a rope.
  • the figure 4 represents a sailboat with a boom brake according to a first embodiment of the invention attached to the boom of the sailboat.
  • the figure 5 represents a top view of the boom brake according to a first embodiment of the invention.
  • the figure 6 represents a bottom view of the boom brake according to a first embodiment of the invention.
  • the figure 7 represents a front view on which is indicated the extension of the rods for producing the attachment means to the boom and the rope guiding means (bridges) according to a first embodiment of the invention.
  • the figure 8 represents a boom brake according to a second embodiment of the invention integrated this time to the boom of the sailboat.
  • the present invention provides a boom brake 1 which according to a first embodiment of the invention is in the form of a simple shell closed on both sides (drum) of stainless material having on its peripheral face a relief consisting at least three calibrated grooves 2 whose radius in section is close to the sectional radius of the ropes used. These grooves guide the spiral rope around the ferrule while preventing the strands from overlapping. This configuration allows up to three dead turns around the shell, the number of turns and the diameter of the shell and that of the ropes associated with the grooves regulate the braking of the boom.
  • An example of a possible stainless material for the manufacture of the boom brake according to the invention is stainless steel.
  • the boom brake 1 also comprises a stirrup 3 on the central groove of the drum for fixing the assembly to the boom.
  • a stirrup 3 on the central groove of the drum for fixing the assembly to the boom.
  • two bridges 4 On both sides equidistant from the central stirrup, on the external grooves are fixed two bridges 4 to guide the arrival and the exit of the rope 5 on the boom brake 1 according to the invention (see figures 1 , 3 and 5 ).
  • the stirrups 3 and the bridges 4 are not simple rods 6 welded to the peripheral surface of the drum.
  • the rods 6 extend on the contrary to the inside of the drum allowing welding at two locations of the rod (see figure 7 ).
  • the boom brake is directly integrated into the boom of the sailboat.
  • the spiral profile of the boom is an integral part of the boom which can for example be aluminum.
  • the presence of a hooking means 3 to the boom 8 and guiding 4 of the rope 5 is no longer necessary.
  • a window 10 is provided for winding the rope 5 in a spiral around the boom brake integrated in the boom. (See figure 8 )
  • the boom brake 1 described above can be used on high seas sailboats under sustained wind and rough sea conditions.
  • the string 5 is simply passed around the shell following the grooves so as to make two or three turns dead depending on the desired braking.
  • the ferrule may for example be attached to the ring for receiving the tan-low or be directly integrated into the boom.
  • the rope 5 is then attached to the flat edges of each side of the boat (see figure 4 ). The braking can then be adjusted by tending more or less string 5.

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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)
  • Jib Cranes (AREA)

Abstract

The brake has a shell whose outer perimeter is arranged with grooves (2) in a spiral manner. Depth of the grooves is adapted to diameter of cordage that is wrapped in a spiral manner around the shell for braking a boom during utilization of the brake. A hooking unit i.e. yoke, is located on the grooves for hooking the boom with the shell. A guiding unit i.e. male hasp, of the cordage is formed by a set of rods fixed inside the shell, where the brake is made of stainless steel, aluminum or composite material.

Description

Objet de l'inventionObject of the invention

La présente invention se rapporte à un dispositif destiné à être fixé ou à être intégré à la bôme d'un voilier pour en maîtriser le débattement. Elle se rapporte en particulier à un frein de bôme qui, en coopération avec un cordage, va freiner les mouvements trop brusques de la bôme autour du mât en cas d'empannage intempestif.The present invention relates to a device intended to be fixed or to be integrated into the boom of a sailboat to control the movement. It relates in particular to a boom brake which, in cooperation with a rope, will slow the abrupt movements of the boom around the mast in case of untimely jibe.

Etat de la techniqueState of the art

La problématique des débattements violents et intempestifs de la bôme d'un voilier sont bien connus des marins qui tentent généralement de prévenir les mouvements soudains de la bôme, notamment par vent arrière, en utilisant un dispositif de freinage appelé « frein de bôme ». Un tel frein de bôme constitue une sécurité efficace contre les accidents corporels et les dommages infligés à la mâture.The problem of violent and untimely movements of the boom of a sailboat are well known to sailors who generally try to prevent sudden movements of the boom, especially in downwind, using a braking device called "boom brake". Such a boom brake provides effective safety against bodily injury and damage to the mast.

Il existe de nombreux types de freins de bôme généralement basés sur des poulies freinées ou des déviations de cordages (Wichard) susceptibles de gérer les débattements de la bôme.There are many types of boom brakes generally based on braked pulleys or rope deflections (Wichard) that can handle boom travel.

Les documents FR 2 640 932 ; EP 0 630 806 et US 6,085,679 divulguent un frein de bôme présentant une configuration relativement complexe basée sur un jeu de poulies et d'organes de guidage du cordage. Les déviations autour des poulies déterminent le niveau de freinage du débattement de la bôme.The documents FR 2 640 932 ; EP 0 630 806 and US 6,085,679 disclose a boom brake having a relatively complex configuration based on a set of pulleys and guiding members of the rope. The deflections around the pulleys determine the braking level of the travel of the boom.

Le document EP 0 133 713 divulgue un frein de bôme basé sur un tube en spirale positionné au sein d'un boitier, la corde étant freinée par le passage au sein du tube. Ici, la relation entre le diamètre du tube et le diamètre de la corde détermine le niveau de freinage qui peut être atteint. Le document FR 2 521 096 est également basé sur le principe d'une déviation de la corde enfilée dans un tube en forme de spirale.The document EP 0 133 713 discloses a boom brake based on a spiral tube positioned within a housing, the rope being braked by the passage within the tube. Here, the relationship between the diameter of the tube and the diameter of the rope determines the level of braking that can be achieved. The document FR 2 521 096 is also based on the principle of a deviation of the rope slipped into a spiral tube.

Les documents US 4,941,420 et GB 2299798 divulguent un frein de bôme basé sur l'enroulement en spirale de la corde autour d'un tambour. Lorsque la corde se détend, la spirale autour du tambour n'est plus maintenue et se défait avec pour conséquence que le frein ne fonctionne plus.The documents US 4,941,420 and GB 2299798 disclose a boom brake based on the spiral winding of the rope around a drum. When the rope relaxes, the spiral around the drum is no longer maintained and is undone with the result that the brake no longer works.

Les documents DE 19844871 A1 ; US 4,630,564 et WO 83/03806 divulguent quant à eux un frein de bôme basé sur un amortisseur généralement muni d'un ressort.The documents DE 19844871 A1 ; US 4,630,564 and WO 83/03806 disclose a boom brake based on a damper usually provided with a spring.

La plupart des freins de bôme précités ont néanmoins un des inconvénients parmi lesquels on peut citer :

  • l'encombrement, le poids, la facilité et donc la rapidité de mise en place. Certains freins de bôme ne sont pas réglables ou se dérèglent à la suite de l'utilisation en contact avec l'eau salée et le sable, qui sont des conditions fréquemment rencontrées sur les voiliers.
Most of the aforementioned boom brakes, however, have one of the following drawbacks:
  • the size, weight, ease and therefore the speed of implementation. Some boom brakes are not adjustable or are disrupted as a result of use in contact with salt water and sand, which are conditions commonly encountered on sailboats.

La simplicité d'utilisation et de construction d'un frein de bôme est absolument essentielle pour en garantir le fonctionnement durable en mer.The ease of use and construction of a boom brake is absolutely essential to ensure its sustainable operation at sea.

Buts de l'inventionGoals of the invention

La présente invention vise à fournir un frein de bôme qui n'a pas les inconvénients de l'état de la technique.The present invention aims to provide a boom brake that does not have the disadvantages of the state of the art.

Elle vise en particulier à fournir un frein de bôme réglable, d'une construction simple en métal ou en matière composite qui soit inoxydable, facile à utiliser et à entretenir en milieu marin.It aims in particular to provide an adjustable boom brake, a simple construction of metal or composite material that is stainless, easy to use and maintain in the marine environment.

L'invention vise également une bôme de voilier comportant un frein de bôme intégré.The invention also relates to a sailboat boom having an integrated boom brake.

Résumé de l'inventionSummary of the invention

La présente invention divulgue un frein de bôme comportant une virole qui comporte sur son pourtour extérieur des rainures agencées en spirale dont la profondeur est adaptée au diamètre du cordage destiné, en utilisation, à être enroulé en spirale autour de ladite virole pour freiner la bôme.The present invention discloses a boom brake having a ferrule which has on its outer periphery grooves arranged in a spiral whose depth is adapted to the diameter of the rope intended, in use, to be wound in a spiral around said ferrule to brake the boom.

Les modes d'exécution préférés de l'invention comportent au moins une, ou une combinaison quelconque appropriée des caractéristiques suivantes :

  • le frein de bôme comporte en outre un moyen de d'accrochage à la bôme d'un voilier et des moyens de guidage pour le cordage ;
  • le moyen d'accrochage se situe sur une rainure centrale et les moyens de guidage pour le cordage se situent de part et d'autre du moyen d'accrochage sur les rainures externes de la virole ;
  • les moyens de guidage sont formés par un ensemble de tiges fixées en plusieurs points à la surface et à l'intérieur de ladite virole ;
  • le frein de bôme est en acier inoxydable, en aluminium ou en matière composite ;
  • ladite virole comporte au mois trois rainures agencées en spirale ;
  • ladite virole comporte au mois quatre rainures agencées en spirale ;
  • lesdites rainures, vues en coupe, ont une forme de demi-cercle adaptée au diamètre du cordage ;
Preferred embodiments of the invention include at least one or any suitable combination of the following features:
  • the boom brake further comprises a hooking means to the boom of a sailboat and guide means for the rope;
  • the hooking means is located on a central groove and the guiding means for the rope are located on either side of the hooking means on the outer grooves of the shell;
  • the guide means are formed by a set of rods fixed at several points on the surface and inside said ferrule;
  • the boom brake is made of stainless steel, aluminum or composite material;
  • said shell comprises at least three grooves arranged in a spiral;
  • said shell comprises at least four grooves arranged in a spiral;
  • said grooves, seen in section, have a semicircle shape adapted to the diameter of the rope;

La présente invention divulgue également une bôme de voilier comportant un frein de bôme intégré, ledit frein de bôme comportant une virole qui comporte sur son pourtour extérieur des rainures agencées en spirale dont la profondeur est adaptée au diamètre du cordage destiné, en utilisation, à être enroulé en spirale autour de ladite virole pour freiner la bôme.The present invention also discloses a sailboat boom having an integrated boom brake, said boom brake having a shell which has on its outer periphery grooves arranged in a spiral whose depth is adapted to the diameter of the rope intended, in use, to be spirally wound around said ferrule to brake the boom.

Par ailleurs, la présente invention divulgue un voilier comportant une bôme avec un frein de bôme intégré, ledit frein de bôme comportant une virole qui comporte sur son pourtour extérieur des rainures agencées en spirale dont la profondeur est adaptée au diamètre du cordage destiné, en utilisation, à être enroulé en spirale autour de ladite virole pour freiner la bôme. La présente invention divulgue.Furthermore, the present invention discloses a sailboat comprising a boom with an integrated boom brake, said boom brake comprising a shell which has on its outer periphery grooves arranged in a spiral whose depth is adapted to the diameter of the rope intended, in use to be spirally wound around said ferrule to brake the boom. The present invention discloses.

Brève description des figuresBrief description of the figures

Les figures 1 et 2 représentent des vues en trois dimensions du frein de bôme selon un premier mode d'exécution de l'invention.The Figures 1 and 2 represent three-dimensional views of the boom brake according to a first embodiment of the invention.

La figure 3 représente le frein de bôme selon un premier mode d'exécution l'invention seul et enroulé par un cordage.The figure 3 represents the boom brake according to a first embodiment of the invention alone and wound by a rope.

La figure 4 représente un voilier avec un frein de bôme selon un premier mode d'exécution l'invention fixé à la bôme du voilier.The figure 4 represents a sailboat with a boom brake according to a first embodiment of the invention attached to the boom of the sailboat.

La figure 5 représente une vue du dessus du frein de bôme selon un premier mode d'exécution de l'invention.The figure 5 represents a top view of the boom brake according to a first embodiment of the invention.

La figure 6 représente une vue du dessous du frein de bôme selon un premier mode d'exécution de l'invention.The figure 6 represents a bottom view of the boom brake according to a first embodiment of the invention.

La figure 7 représente une vue de face sur laquelle est indiquée le prolongement des tiges servant à réaliser les moyens d'accrochage à la bôme et les moyens de guidage du cordage (pontets) selon un premier mode d'exécution de l'invention.The figure 7 represents a front view on which is indicated the extension of the rods for producing the attachment means to the boom and the rope guiding means (bridges) according to a first embodiment of the invention.

La figure 8 représente un frein de bôme selon un second mode d'exécution de l'invention intégré cette fois à la bôme du voilier.The figure 8 represents a boom brake according to a second embodiment of the invention integrated this time to the boom of the sailboat.

Liste des symboles de référenceList of reference symbols

  1. 1. Frein de bôme1. Boom brake
  2. 2. Rainures calibrées2. Calibrated grooves
  3. 3. Moyen d'accrochage à la bôme d'un voilier (étrier)3. Means of attachment to the boom of a sailboat (stirrup)
  4. 4. Moyens de guidage (pontets permettant de guider l'arrivée et la sortie du cordage)4. Means of guidance (bridges to guide the arrival and the exit of the rope)
  5. 5. Cordage5. Rope
  6. 6. Tiges6. Stems
  7. 7. Points de fixation des tiges à l'intérieur du tambour7. Rod attachment points inside the drum
  8. 8. Frein de bôme intégré à la bôme8. boom brake integrated into the boom
  9. 9. Bôme du voilier9. Boom of the sailboat
  10. 10. Fenêtre sur la bôme pour le passage du cordage10. Window on the boom for the passage of the rope
Description détaillée de l'inventionDetailed description of the invention

Comme nous l'avons évoqué plus haut, les freins de bôme sophistiqués ne résistent pas longtemps aux conditions d'utilisation en mer. Les réglages de départ changent rapidement, au fur et à mesure que les cordages et les poulies sont mis en contact avec l'eau de mer et le sable.As mentioned above, sophisticated boom brakes do not withstand the conditions of use at sea for a long time. Initial settings change rapidly as ropes and pulleys come into contact with the sea. sea water and sand.

La présente invention fournit un frein de bôme 1 qui selon une première forme d'exécution de l'invention se présente sous forme d'une simple virole fermée de part et d'autre (tambour) en matière inoxydable comportant sur sa face périphérique un relief constitué d'au moins trois rainures calibrées 2 dont le rayon en coupe est proche du rayon en coupe des cordages utilisés. Ces rainures permettent de guider le cordage en spirale autour de la virole tout en empêchant les brins de se chevaucher. Cette configuration permet d'effectuer jusqu'à trois tours morts autour de la virole, le nombre de tours et le diamètre de la virole et celui des cordages associés aux rainures régulent le freinage de la bôme.The present invention provides a boom brake 1 which according to a first embodiment of the invention is in the form of a simple shell closed on both sides (drum) of stainless material having on its peripheral face a relief consisting at least three calibrated grooves 2 whose radius in section is close to the sectional radius of the ropes used. These grooves guide the spiral rope around the ferrule while preventing the strands from overlapping. This configuration allows up to three dead turns around the shell, the number of turns and the diameter of the shell and that of the ropes associated with the grooves regulate the braking of the boom.

Un exemple de matériau inoxydable possible pour la fabrication du frein de bôme selon l'invention est l'acier inoxydable.An example of a possible stainless material for the manufacture of the boom brake according to the invention is stainless steel.

Si nous prenons l'exemple de l'acier inoxydable pour réaliser le tambour, on peut couper une tranche d'un tuyau inox. La virole est ensuite emboutie pour y créer les rainures 2 en forme de spirale. Concrètement, on peut à titre d'exemple utiliser un tuyau inox avec diamètre extérieur d'environ 114 mm et d'une épaisseur de 2 mm. La tranche découpée aura une longueur d'environ 66 mm. En emboutissant la virole constituée par ce bout de tube avec des rainures de 12 mm de diamètre et en laissant 5 mm entre chaque rainure, on obtient un pas de vis sur la spirale de 17 mm.If we take the example of stainless steel to make the drum, we can cut a slice of a stainless steel pipe. The shell is then stamped to create grooves 2 spiral. Concretely, one can for example use a stainless steel pipe with outside diameter of about 114 mm and a thickness of 2 mm. The cut slice will have a length of about 66 mm. By stamping the ferrule formed by this tube end with 12 mm diameter grooves and leaving 5 mm between each groove, a screw pitch is obtained on the 17 mm spiral.

Dans le premier mode d'exécution de l'invention, le frein de bôme 1 comporte également un étrier 3 sur la rainure centrale du tambour permettant de fixer l'ensemble à la bôme. De part et d'autre à équidistance de l'étrier central, sur les rainures externes sont fixés deux pontets 4 permettant de guider l'arrivée et la sortie du cordage 5 sur le frein de bôme 1 selon l'invention (voir figures 1,3 et 5).In the first embodiment of the invention, the boom brake 1 also comprises a stirrup 3 on the central groove of the drum for fixing the assembly to the boom. On both sides equidistant from the central stirrup, on the external grooves are fixed two bridges 4 to guide the arrival and the exit of the rope 5 on the boom brake 1 according to the invention (see figures 1 , 3 and 5 ).

Les étriers 3 et les pontets 4 ne sont pas de simples tiges 6 soudées sur la surface périphérique du tambour. Les tiges 6 se prolongent au contraire à l'intérieur du tambour permettant une soudure à deux emplacements de la tige (voir figure 7).The stirrups 3 and the bridges 4 are not simple rods 6 welded to the peripheral surface of the drum. The rods 6 extend on the contrary to the inside of the drum allowing welding at two locations of the rod (see figure 7 ).

Lorsque les étriers 3 et les pontets 4 sont fixés, on soude les deux couvercles sur le tambour pour le refermer de manière étanche et pour solidifier l'ensemble.When the stirrups 3 and the bridges 4 are fixed, the two covers are welded to the drum to seal it tightly and to solidify the assembly.

Selon un second mode d'exécution de l'invention, le frein de bôme est directement intégré à la bôme du voilier. Ici le profil en spirale de la bôme fait partie intégrante de la bôme qui peut par exemple être en aluminium. Dans ce mode d'exécution de l'invention la présence d'un moyen d'accrochage 3 à la bôme 8 et de guidage 4 du cordage 5 n'est plus nécessaire. On prévoit dans ce cas une fenêtre 10 permettant l'enroulement du cordage 5 en spirale autour du frein de bôme intégré à la bôme. (Voir figure 8)According to a second embodiment of the invention, the boom brake is directly integrated into the boom of the sailboat. Here the spiral profile of the boom is an integral part of the boom which can for example be aluminum. In this embodiment of the invention the presence of a hooking means 3 to the boom 8 and guiding 4 of the rope 5 is no longer necessary. In this case, a window 10 is provided for winding the rope 5 in a spiral around the boom brake integrated in the boom. (See figure 8 )

Le frein de bôme 1 décrit précédemment peut être utilisé sur des voiliers de haute mer dans des conditions de vent soutenu et par mer houleuse. On passe simplement le cordage 5 autour de la virole en suivant les rainures de façon à faire deux ou trois tours morts selon le freinage désiré. La virole peut par exemple être fixé à l'anneau destiné à recevoir le hâle-bas ou bien se trouver directement intégré à la bôme. Le cordage 5 est ensuite fixé aux plats bords de chaque côté du bateau (voir figure 4). Le freinage peut alors être réglé en tendant plus ou moins fort le cordage 5.The boom brake 1 described above can be used on high seas sailboats under sustained wind and rough sea conditions. The string 5 is simply passed around the shell following the grooves so as to make two or three turns dead depending on the desired braking. The ferrule may for example be attached to the ring for receiving the tan-low or be directly integrated into the boom. The rope 5 is then attached to the flat edges of each side of the boat (see figure 4 ). The braking can then be adjusted by tending more or less string 5.

Il est évident que pour des bateaux de taille importante, on peut augmenter le diamètre et le nombre de rainures sur la virole du frein de bôme 1.It is obvious that for large boats, it is possible to increase the diameter and the number of grooves on the shell of the boom brake 1.

Les avantages principaux du frein de bôme selon l'invention sont les suivants :

  • légèreté de l'ensemble, construction compacte, ce qui rend l'ensemble facilement manipulable et peu encombrant tout en limitant le poids de l'embarcation ;
  • absence de nécessité d'entretien comme le graissage ou le nettoyage du fait qu'il n'y a aucune partie mobile du type ressort, poulie ou engrenage ;
  • absence d'usure exagérée du cordage du fait que le freinage ne s'obtient pas par des déviations fortes à travers des ouvertures ou des broches mais simplement par un contact en douceur avec les rainures en spirale ;
  • modularité du concept puisque le frein selon l'invention peut s'adapter facilement à plusieurs tailles de bateaux en augmentant simplement le nombre de rainures.
The main advantages of the boom brake according to the invention are the following:
  • lightness of the assembly, compact construction, which makes the assembly easily manipulated and compact while limiting the weight of the boat;
  • no need for maintenance such as greasing or cleaning because there is no moving part of the spring type, pulley or gear;
  • absence of excessive wear of the rope as braking is not achieved by strong deviations through openings or pins but simply by gentle contact with the spiral grooves;
  • modularity of the concept since the brake according to the invention can easily adapt to several boat sizes by simply increasing the number of grooves.

Claims (10)

Frein de bôme (1) comportant une virole qui comporte sur son pourtour extérieur des rainures (2) agencées en spirale dont la profondeur est adaptée au diamètre du cordage (5) destiné, en utilisation, à être enroulé en spirale autour de ladite virole pour freiner la bôme (9).Boom brake (1) having a ferrule which has on its outer periphery grooves (2) arranged in a spiral, the depth of which is adapted to the diameter of the rope (5) intended, in use, to be wound in a spiral around said ferrule for brake the boom (9). Frein de bôme (1) selon la revendication 1 comportant en outre un moyen de d'accrochage (3) à la bôme d'un voilier et des moyens de guidage (4) pour le cordage (5).Boom brake (1) according to claim 1 further comprising a hooking means (3) to the boom of a sailboat and guide means (4) for the rope (5). Frein de bôme selon la revendication 1, caractérisé en ce que le moyen d'accrochage (3) se situe sur une rainure (2) centrale et les moyens de guidage (4) pour le cordage (5) se situent de part et d'autre du moyen d'accrochage (3) sur les rainures (2) externes de la virole.Boom brake according to claim 1, characterized in that the hooking means (3) is located on a central groove (2) and the guide means (4) for the rope (5) are located on both sides. other of the attachment means (3) on the outer grooves (2) of the ferrule. Frein de bôme selon l'une quelconque des revendications 1, 2 ou 3, caractérisé en ce que les moyens de guidage (4) sont formés par un ensemble de tiges (6) fixées en plusieurs points (7) à la surface et à l'intérieur de ladite virole.Boom brake according to any one of claims 1, 2 or 3, characterized in that the guide means (4) are formed by a set of rods (6) fixed at several points (7) to the surface and to the inside said ferrule. Frein de bôme selon l'une quelconques des revendications précédentes, caractérisé en ce que ledit frein de bôme est en acier inoxydable, en aluminium ou en matière composite.A boom brake as claimed in any one of the preceding claims, characterized in that said boom brake is made of stainless steel, aluminum or composite material. Frein de bôme selon l'une quelconques des revendications précédentes, caractérisé en ce que ladite virole comporte au mois trois rainures (2) agencées en spirale.Boom brake according to any one of the preceding claims, characterized in that said shell comprises at least three grooves (2) arranged in a spiral. Frein de bôme selon l'une quelconques des revendications précédentes, caractérisé en ce que ladite virole comporte au mois quatre rainures (2) agencées en spirale.Boom brake according to any one of the preceding claims, characterized in that said shell comprises at least four grooves (2) arranged in a spiral. Frein de bôme selon l'une quelconques des revendications précédentes, caractérisé en ce que lesdites rainures (2), vues en coupe, ont une forme de demi-cercle adaptée au diamètre du cordage (5)Boom brake according to any one of the preceding claims, characterized in that said grooves (2), seen in section, have a semi-circle shape adapted to the diameter of the rope (5) Bôme de voilier comportant un frein de bôme intégré selon la revendication 1.Sailboat boom having an integrated boom brake according to claim 1. Voilier comportant une bôme selon la revendication 9.Sailboat having a boom according to claim 9.
EP08169751A 2008-11-24 2008-11-24 Boom brake Active EP2189369B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08169751A EP2189369B1 (en) 2008-11-24 2008-11-24 Boom brake
AT08169751T ATE551255T1 (en) 2008-11-24 2008-11-24 TREE BRAKE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08169751A EP2189369B1 (en) 2008-11-24 2008-11-24 Boom brake

Publications (2)

Publication Number Publication Date
EP2189369A1 true EP2189369A1 (en) 2010-05-26
EP2189369B1 EP2189369B1 (en) 2012-03-28

Family

ID=40578397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08169751A Active EP2189369B1 (en) 2008-11-24 2008-11-24 Boom brake

Country Status (2)

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EP (1) EP2189369B1 (en)
AT (1) ATE551255T1 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2108569A (en) * 1981-10-12 1983-05-18 Vittorio Bandini Braking device for the boom of sailing boats
FR2521096A1 (en) 1982-02-11 1983-08-12 Angar Gerard Sailing boat boom brake - has helical tube taking boom control rope and attached to boom
WO1983003806A1 (en) 1982-04-23 1983-11-10 Donald Duckman A boom arrangement
EP0133713A2 (en) 1983-05-10 1985-03-06 Peter Andreas Jonkers Boom-brake; slowing down apparatus for a boom or such and the procedure for the manufacture of the apparatus
FR2640932A1 (en) 1988-12-23 1990-06-29 Genevaz Pierre Adjustable boom brake
US4941420A (en) 1989-02-16 1990-07-17 Heintz Harold L Sailboat room control device
EP0630806A1 (en) 1993-06-25 1994-12-28 VAN BREEMS, Martinus Boom brake
GB2299798A (en) 1995-04-13 1996-10-16 Donald Alan Scott A device for controlling the lateral movement of the boom of a sailing boat.
DE19844871A1 (en) 1998-09-30 2000-04-06 Ulrich Woessner Boom brake for sailing boat, with telescopic damping element used as braking device
US6085679A (en) 1999-02-02 2000-07-11 Tiesler; Robin F. Sail boat jibe control system

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2108569A (en) * 1981-10-12 1983-05-18 Vittorio Bandini Braking device for the boom of sailing boats
FR2521096A1 (en) 1982-02-11 1983-08-12 Angar Gerard Sailing boat boom brake - has helical tube taking boom control rope and attached to boom
WO1983003806A1 (en) 1982-04-23 1983-11-10 Donald Duckman A boom arrangement
US4630564A (en) 1982-04-23 1986-12-23 Donald Duckman Boom control device for a sailboat boom
EP0133713A2 (en) 1983-05-10 1985-03-06 Peter Andreas Jonkers Boom-brake; slowing down apparatus for a boom or such and the procedure for the manufacture of the apparatus
FR2640932A1 (en) 1988-12-23 1990-06-29 Genevaz Pierre Adjustable boom brake
US4941420A (en) 1989-02-16 1990-07-17 Heintz Harold L Sailboat room control device
EP0630806A1 (en) 1993-06-25 1994-12-28 VAN BREEMS, Martinus Boom brake
GB2299798A (en) 1995-04-13 1996-10-16 Donald Alan Scott A device for controlling the lateral movement of the boom of a sailing boat.
DE19844871A1 (en) 1998-09-30 2000-04-06 Ulrich Woessner Boom brake for sailing boat, with telescopic damping element used as braking device
US6085679A (en) 1999-02-02 2000-07-11 Tiesler; Robin F. Sail boat jibe control system

Also Published As

Publication number Publication date
ATE551255T1 (en) 2012-04-15
EP2189369B1 (en) 2012-03-28

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