FR2472508A1 - Boom with variable profile to alter sail curvature - has support beams travelling along boom under action of screw threaded rod - Google Patents

Boom with variable profile to alter sail curvature - has support beams travelling along boom under action of screw threaded rod Download PDF

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Publication number
FR2472508A1
FR2472508A1 FR7931914A FR7931914A FR2472508A1 FR 2472508 A1 FR2472508 A1 FR 2472508A1 FR 7931914 A FR7931914 A FR 7931914A FR 7931914 A FR7931914 A FR 7931914A FR 2472508 A1 FR2472508 A1 FR 2472508A1
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France
Prior art keywords
sail
boom
fact
arms
alter
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Application number
FR7931914A
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French (fr)
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Individual
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Individual
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Publication date
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Priority to FR7931914A priority Critical patent/FR2472508A1/en
Publication of FR2472508A1 publication Critical patent/FR2472508A1/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H9/00Marine propulsion provided directly by wind power
    • B63H9/04Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08Connections of sails to masts, spars, or the like

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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 boom is fabricated from a beam (1) which supports a curved element (15) made up of segments (10) pinned at intervals. The segments carry the track (18) for the foot of the sail. The flexible element (15) is fixed to a number of support beams (5,6,7,8) which are held in position by the side beams (20,21,22). The support beam (7) extends onto a positioning bar (25) with a screw thread (24). The beam (7) can move along the boom by turning the screw (27) and vary the sail curvature.

Description

La présente invention concerne uneybtme c: profile variable. Ce qui cerac- térise cette invention est le fait que, grâce a son profil variable, l'on obtient, à partir d'une voile plate, une voile dont le creux est créé a la demande car il ne faut pas oublié que, moins le bateau se rapproche
du lit du vent et plus la voile doit étre creuse, mais il est évidemment impossible d'emporter suffisamment de voiles différentes pour pouvoir en
changer à chaque modification du cap; la présente invention élimine cette impossibilité.L'inconvénient des bômes éxistantes est de nécessitér des
changements de voiles, ce qui crée des manipulations engendrant de la fatigue pour celui, ou ceux, participant à la manoeuvre; la bôme, objet de cette invention, permet de remédier à ces inconvénients puisque, à partir d'une voile plate, on obtient une voile au creux désirable.
The present invention relates to a variable c: profile. What characterizes this invention is the fact that, thanks to its variable profile, one obtains, from a flat sail, a sail whose hollow is created on demand because it should not be forgotten that, less the boat is getting closer
from the wind bed and the more the sail should be hollow, but it is obviously impossible to carry enough different sails to be able to
change each time the course is changed; The present invention eliminates this impossibility. The disadvantage of existing boom is that it requires
changes of sails, which creates manipulations causing fatigue for those or those participating in the maneuver; the boom, object of this invention, makes it possible to remedy these drawbacks since, from a flat sail, a sail with a desirable hollow is obtained.

La description qui va suivre, aidée du dessin ci-annexé, permettra de bien comprendre 11 invention : une poutre formée de deux Us ou de deux tubes de section rectangulaire, 1 & sont disposés l'un au-dessus de l'autre; sur le U 1 est installé au moyen de soudures, ou de brasures, un autre Us de dimensions convenables, 3, destiné à servir de guide; sur le U 2 est installé de même manière un U 4 destiné, lui aussi, à servir de guide.L'écartement entre le U 1 et le U 2 doit permettre le libre déplacement des bras 5,6,7 et 8 dont le rôle est de créer une courbe à l'aide d'une ligne brisée formée d'éléments 8 et 9 s'articulant l'un sur l'autre à l'aide des axes 10, les éléments étant reliés aux bras 5,6, 7 et 8 i l'aide des axes 11. En tête de la bôme, c'est à dire du côté du mât, l'élément 12 s'articule à l'aide d'un axe 13 sur un gousset 14 prévu à cet effet. A l'extrémité opposée on trouve l'élément 15 muni d'un axe 16 se déplaçant librement, selon la demande, dans une glissière 17 solidaire des U 1 et 2.The description which follows, helped by the appended drawing, will allow a good understanding of the invention: a beam formed from two Us or from two tubes of rectangular section, 1 & are arranged one above the other; on the U 1 is installed by means of welds, or solders, another Us of suitable dimensions, 3, intended to serve as a guide; on the U 2 is installed in the same way a U 4 also intended to serve as a guide. The spacing between the U 1 and the U 2 must allow the free movement of the arms 5, 6, 7 and 8 whose role is to create a curve using a broken line formed of elements 8 and 9 hinging on one another using the axes 10, the elements being connected to the arms 5, 6, 7 and 8 i using the axes 11. At the head of the boom, that is to say on the side of the mast, the element 12 is articulated by means of an axis 13 on a gusset 14 provided for this purpose . At the opposite end there is the element 15 provided with a pin 16 moving freely, according to demand, in a slide 17 secured to the U 1 and 2.

Les éléments 8,9,12 et 15 sont composés d'une partie plate, par laquelle ils sont réunis entre eux, et une partie représentant un cercle ouvert, cette partie étant utilisée pour le passage et la retenue de la bordure de la voile. Les bras 5,6,7 et 8 ayant une de leurs extrèmités qui s'articule sur les éléments 8 à l'aide des axes 11, l'autre extrémité étant traversée par un axe 19 maintenu prisonnier par les U 3 et 4 dans lesquelles il peut se déplacer librement.Les bras 5,6,7 et 8 sont reliés entre eux à l'aide des biellettes 20,21 et 22, chacune étant d'une longueur convenable, et placées de telle sorte qu'elles ne gênent en rien le déplacement des bras 5,6,7 et 8. Le bras 7 se distingue des autres du fait qu'il a un prolongement au-delà de son axe 19 afin de supporter un écrou 23 traversé par la partie filetée 24 d'un arbre de commande 25 maintenu en place à l'aide des butes 25, 27 et 28.The elements 8, 9, 12 and 15 are composed of a flat part, by which they are joined together, and a part representing an open circle, this part being used for the passage and the retention of the edge of the sail. The arms 5, 6, 7, 7 and 8 having one of their ends which is articulated on the elements 8 using the axes 11, the other end being crossed by an axis 19 held captive by the U 3 and 4 in which it can move freely. The arms 5, 6, 7 and 8 are connected together by means of the links 20, 21 and 22, each being of a suitable length, and placed in such a way that they do not interfere with nothing the displacement of the arms 5, 6, 7, and 8. The arm 7 differs from the others in that it has an extension beyond its axis 19 in order to support a nut 23 through which the threaded portion 24 passes. control shaft 25 held in place by means of stops 25, 27 and 28.

On comprendra aisé ent que l'arbre 25, aidé de sa partie filetée 24, en gissant sur le bras 7 fera se déplacer les bras 5,6 et 8 dans un sens
ou dans l'autre, ce qui fera varier la courbe composée par les éléments
6,9,12 et 15 ce qui, de ce fait, procurera à la voile un creux plus ou
moins important, ce creux étant obtenu à la demande selon les besoins de la navigation.
It will be easy to understand that the shaft 25, aided by its threaded portion 24, by sliding on the arm 7 will cause the arms 5, 6 and 8 to move in one direction
or in the other, which will vary the curve composed by the elements
6,9,12 and 15 which, as a result, will give the sail a deeper or
less important, this trough being obtained on demand according to the needs of navigation.

il est, naturellement, sous-entendu que la bôme, objet de l'invention, peut étre réalisée en différents matériaux, acier inoxydable ou duralinox par exemple, et sans aucune limitation dans ses dimensions, celles-ci étant définies par l'importance du voilier qui en sera équipé.it is, of course, understood that the boom, object of the invention, can be made of different materials, stainless steel or duralinox for example, and without any limitation in its dimensions, these being defined by the importance of sailboat which will be equipped with it.

Si certains détails, considérés comme secondaires, n'ont pas été évoqués, ctest uniquement dans le but de simplifier le dessin et de na pas alourdir la description, de meme que l'invention ne se limite pas à ce qui a été plus spécialement montré au dessin, et à la description ci-dessus, elle en comprend toutes les variantes sans aucune restriction.If certain details, considered secondary, have not been mentioned, it is only for the purpose of simplifying the drawing and not adding to the description, just as the invention is not limited to what has been more specially shown. in the drawing, and in the description above, it includes all the variants thereof without any restriction.

il est également sous-entendu que le nombre des éléments 8 et 9, ainsi que le nombre de bras et de biellettes, seront fonction de la longueur de la bombe. it is also understood that the number of elements 8 and 9, as well as the number of arms and links, will depend on the length of the bomb.

Claims (7)

R3VENDICTIONSR3VENDICTIONS 1/ Bôme à profil variable pour voiliers caraciérisée par le fait que 1 / Boom with variable profile for sailboats, characterized by the fact that la partie recevant la bordure de la voile, peut ne pas rester the part receiving the edge of the sail, may not remain rectiligne. straight. 2/ selon la revendication 1 2 / according to claim 1 caractérisée par le fait qu'a' partir d'une voile plate on peut characterized by the fact that from a flat sail you can obtenir une voile creuse. get a hollow sail. 3/ selon la revendication 2: 3 / according to claim 2: caractérisée par le fait que l'on peut obtenir une voile au creux characterized by the fact that a hollow sail can be obtained désiré . longed for . 4/ selon la revendication 3 :4 / according to claim 3: caractérisée par le fait que l'on obtient le creux désiré en agissant characterized by the fact that the desired hollow is obtained by acting sur la déformation du guide recevant la bordure de la voile. on the deformation of the guide receiving the edge of the sail. 5/ selon la revendication 4 :5 / according to claim 4: caractérisée par le fait que la déformation du guide recevant la characterized by the fact that the deformation of the guide receiving the bordure de la voile, se fait à la demande et selon les besoins de edge of the sail, is made at the request and according to the needs of la navigation 6/ selon la revendication 4 : navigation 6 / according to claim 4: caractérisée par le fait que la déformation du guide de la bordure characterized in that the deformation of the border guide de la voile est obtenue avec l'aide de bras sailing is obtained with the help of arms 7/ selon la revendication 6 7 / according to claim 6 caractérisée par le fait que les bras servant à la déformation du characterized by the fact that the arms used to deform the guide de la bordure de la voile sont reliés, entre eux, par des guide of the edge of the sail are connected, between them, by biellettes rods o/ selon la revendication 6 o / according to claim 6 caractérisée par le fait que l'emplacement de ces bras est modifié characterized in that the location of these arms is changed par l'action de la partie filetée d'un arbre de commande sur un by the action of the threaded part of a control shaft on a bras principal transmettant son mouvement aux autres bras avec main arm transmitting its movement to the other arms with l'aide des biellettes using the links 9/ selon la revendication 1 : : 9 / according to claim 1:: caractérisée par le fait qu'il n'y a aucune restriction tant dans characterized by the fact that there is no restriction both in le choix des matériaux entrant dans la réalisation, que dans les di the choice of materials used in the realization, that in the di mensions de cette bôme et dans ses détails  details of this boom and in its details
FR7931914A 1979-12-28 1979-12-28 Boom with variable profile to alter sail curvature - has support beams travelling along boom under action of screw threaded rod Withdrawn FR2472508A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7931914A FR2472508A1 (en) 1979-12-28 1979-12-28 Boom with variable profile to alter sail curvature - has support beams travelling along boom under action of screw threaded rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7931914A FR2472508A1 (en) 1979-12-28 1979-12-28 Boom with variable profile to alter sail curvature - has support beams travelling along boom under action of screw threaded rod

Publications (1)

Publication Number Publication Date
FR2472508A1 true FR2472508A1 (en) 1981-07-03

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Application Number Title Priority Date Filing Date
FR7931914A Withdrawn FR2472508A1 (en) 1979-12-28 1979-12-28 Boom with variable profile to alter sail curvature - has support beams travelling along boom under action of screw threaded rod

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316139A1 (en) * 1983-05-03 1984-11-08 Hartmut Berthold 2000 Norderstedt Schwarz SAILING SHIP
US5406902A (en) * 1994-05-24 1995-04-18 Heinsohn; Gerd Method and apparatus for optimum sail shaping
WO2009097638A2 (en) * 2008-02-06 2009-08-13 Kurt Waldhauser Profile sail boom for sail boats

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316139A1 (en) * 1983-05-03 1984-11-08 Hartmut Berthold 2000 Norderstedt Schwarz SAILING SHIP
US5406902A (en) * 1994-05-24 1995-04-18 Heinsohn; Gerd Method and apparatus for optimum sail shaping
WO2009097638A2 (en) * 2008-02-06 2009-08-13 Kurt Waldhauser Profile sail boom for sail boats
WO2009097638A3 (en) * 2008-02-06 2010-07-08 Kurt Waldhauser Profiled sail boom for sail boats
US8516972B2 (en) 2008-02-06 2013-08-27 Kurt Waldhauser Profile sail boom for sail boats

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