WO2001000486A1 - Agres de reglage de la voile d'un bateau - Google Patents

Agres de reglage de la voile d'un bateau Download PDF

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Publication number
WO2001000486A1
WO2001000486A1 PCT/FI2000/000560 FI0000560W WO0100486A1 WO 2001000486 A1 WO2001000486 A1 WO 2001000486A1 FI 0000560 W FI0000560 W FI 0000560W WO 0100486 A1 WO0100486 A1 WO 0100486A1
Authority
WO
WIPO (PCT)
Prior art keywords
sail
supporter
mast
transverse
control gear
Prior art date
Application number
PCT/FI2000/000560
Other languages
English (en)
Inventor
Jan Stenros
Original Assignee
Jan Stenros
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jan Stenros filed Critical Jan Stenros
Priority to EP00940435A priority Critical patent/EP1204549A1/fr
Priority to AU55372/00A priority patent/AU5537200A/en
Publication of WO2001000486A1 publication Critical patent/WO2001000486A1/fr

Links

Classifications

    • 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
    • B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels
    • B63H9/068—Sails pivotally mounted at mast tip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/38—Keels

Definitions

  • the present invention concerns a control gear for the control of the sail of a sailing craft provided with a keel structure, said control gear comprising a rigid mast with a vertical foot fitted to a base so as to be rotatable with respect to its vertical axis, a supporting structure fitted to the mast, to which supporting structure the sail is fastened in an oblique position so that the wind will generate in the sail, in addition to a driving force, a lifting force and transmits the driving force of the sail to the center of gravity of the sailing craft to prevent tilting, and a tackle for the adjustment of the sail.
  • a traditional sailing boat provided with a rigid vertical mast is heeled by the wind, with the result that the power of the sail is lost and traveling on the boat is slow and uncomfortable. Therefore, traditional sailing boats need to be equipped with a counterweight to cancel the torque generated by the wind in the sail.
  • the counterweight may consist of a lead weight in the keel, the crew hanging from a harness outside the board of the boat, or a large living weight of a multi-hull boat.
  • a feature common to all such boats is that they sometimes need to reduce or slacken the sail to eliminate an excessive wind force.
  • Patent application DE 24 31 710 presents a rigid thrust and lift wing profile for water-borne vessels that is automatically adjustable in respect of the rather insignificant roll axis of the sail but not in respect of the angle of incidence, i.e. the pitch axis of the sail. It is controlled using a control gear which comprises a vertical pin mounted on a base so as to be rotatable about a vertical axis. Mounted on its upper end is a plate with a diagonal strut pivoted on each end of the plate, the other ends of the diagonal struts being pivotally connected to the wing profile. By virtue of the pivotal linkage, the wing profile automatically assumes in a traveling position a suitable inclined position, e.g.
  • the thrust of the wing is transmitted to the center of gravity of the boat.
  • the force for adjusting the wing profile is transmitted via the diagonal struts, the wing structure and the joints of the diagonal struts. This construction produces considerable torsion e.g. at the joints. For instance, in backwash conditions, the twisting forces e.g. on the yaw axis are considerable.
  • the wing is swung across the boat.
  • the wing may have full thrust on when being turned. Even a moderate gust of wind at a critical moment may overturn the boat.
  • the structure for the structure to be strong enough, it should be manufactured from strong and heavy materials. This results in a heavy structure, and the center of gravity of the boat will be too high up.
  • the structure requires two diagonal struts for each wing. Two diagonal struts increase the weight, the price and the wind resistance.
  • the structure in question uses a rigid wing profile, which is clumsy and heavy.
  • the object of the present invention is to eliminate the drawbacks of prior-art solutions and to achieve a new type of self-adjusting control gear for the control of the sail of sailing crafts provided with a rigid mast, in which control gear the sail is automatically adjusted to the right angle of incidence and in which the direction of pull of the sail and the resistive force of the keel cancel each other.
  • the solution of the invention is characterized in that at least the end of the mast is in an inclined position relative to the vertical, that the supporter structure comprises a supporter substantially transverse to the end of the mast and having a length substantially corresponding to the height of the sail, and transverse sail supporters, the length of at least one of which substantially corresponds to the width of the sail, that a transverse supporter comprises a flexible joint connecting the supporter to the end of the mast, and that the tackle comprises ropes or equivalent fastened to the supporters so as to allow adjustment of the position of the sail, automatic adjustment of the pitch axis of the sail being thus achieved.
  • a sailing boat using a control gear according to the invention will not roll and the power of the sail can be utilized in a controlled manner.
  • the sail responds automatically and sufficiently fast to changes in the direction and force of the wind. When the wind force increases, there arises no moment tending to heel the boat. The stronger the sail force pulling the boat, the stronger is the counteractive force produced by the keel, thus balancing the boat. Moreover, there is no need to adjust the sail all the time as it is adjusted automatically.
  • a boat equipped with a control gear according to the invention can be light and have a large sail area. The sail both propels the boat and at the same time lightens it. A sail having a larger area in relation to the weight of the boat guarantees a higher speed.
  • the speed remains good over a very large range of variation of wind speed.
  • the boat is easy to control and balance.
  • the sail control gear of the invention is applicable for use in all types of boat regardless of the hull type of the boat. Therefore, the sail control gear can be used in single-hull or multi-hull boats.
  • Fig. 1 presents a sailing boat with a sail control gear as provided by the invention in neutral position
  • Fig. 2 presents a sailing boat as illustrated in Fig. 1 , seen from the stern of the boat, in neutral position,
  • Fig. 3 presents another sailing boat with a sail control gear as provided by the invention in neutral position
  • Fig. 4 presents a sailing boat as illustrated in Fig. 3, seen from the stern, in neutral position, and
  • Fig. 5 presents a sailing boat with another sail control gear according to the invention in traveling position.
  • Fig. 1 and 2 present a sailing boat 11 provided with a keel 12 and a mast 8 of tubular construction and a sail 1 of canvas or equivalent.
  • the sail 1 has been fitted to the right shape by using a supporting bar 2 transverse to the top of the mast 8, placed at the front edge of the sail and having a length equal to the height of the sail 1 , and a transverse supporting bar 4 having a length equal to the width of the sail.
  • the sail 1 is fastened to the front end of bar 4.
  • placed near the ends of bar 2 are two more transverse supporting bars 3, the sail 1 being also fastened to the front ends of these bars 3.
  • the middle part of bar 2 passes through a flexible sleeve 6 fixed to the top of the mast 8.
  • the other end of bar 4 is fastened to the sleeve 6.
  • the vertical foot end of the mast 8 is so mounted on a base 10 that it can rotate through 360° about its vertical axis.
  • the mast 8 is so bent that its upper end is at an angle of about 45° relative to the vertical plane.
  • the transverse bar 2 being perpendicularly connected to the end of the mast, the sail 1 is turned into an angle of about 45° relative to the horizontal plane.
  • the thrust of the sail 1 in the traveling position is directed partly forward and partly upward and the sail automatically assumes a suitable angle of incidence with respect to the wind.
  • the force vectors of the sail 1 and the keel 12 are opposite to each other, and thus no moment heeling the boat 11 arises. Therefore, the sail 1 will not overturn the boat 11.
  • first control cables 5 fastened to the rear ends of the second transverse bars 3, said rear ends being located somewhat outward from the midpoint between the two halves of the transverse bar 2, the second ends of said control cables being fastened to the ends of a transverse bar 7 at about the middle of the mast 8, with two wire cables 5 connecting each end of bar 3 to the ends of bar 7.
  • the sail 1 is held in place.
  • second pair of control cables 9 sheets fastened to one end of bar 4 and to wheels 17 placed at the lower end of the mast 8 to allow adjustment of the longitudinal inclination of the sail 1 , i.e. adjustment of the thrust and tack of the sail 1.
  • the tack of the sail 1 is changed by the lee by releasing the wire cable 9 on the other side and tightening, even when the boat making an upwind tack.
  • the keel structure may also be implemented as illustrated in Fig. 3 and 4.
  • the boat has two keels 13 disposed on either side of the boat.
  • the lower end of the keel 13 is obliquely inclined downward under the boat, and the keel is hinged on the boat with a transverse shaft 18 holding the keel by its upper end.
  • one of the keels is always drawing the boat deeper on the side opposite to the sail 1.
  • the force vectors of the sail 1 and the keel 13 (keel force 14 and sail force 15 in Fig. 4) are reverse to each other, and no moment tending to heel the boat 11 arises.
  • Fig. 5 there are only two transverse bars 3, 4.
  • the end of one bar 4 extends some distance across the supporting bar 2, so it is a suitable place for a return spring 16 which will return the sail 1 to the neutral position in calm weather.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Wind Motors (AREA)

Abstract

L'invention porte sur des agrès (11) autoréglables de la voile d'une embarcation à quille (12, 13) comprenant: un mât rigide (8) dont le pied vertical, encastré dans une base (10), peut pivoter autour de son axe vertical; une structure porteuse montée sur le mât à laquelle est fixée la voile dans une position oblique de manière à ce que le vent y produise en plus d'une poussée une force ascendante tendant à soulever l'embarcation, et qui en empêche la gîte en appliquant la poussée en son centre de gravité; ainsi que des manoeuvres de réglage de la voile. La mât (8), du moins dans sa partie haute, est oblique par rapport à la verticale. La structure porteuse comprend une vergue (2) sensiblement perpendiculaire à la tête de mât (8) et dont la longueur correspond sensiblement à la hauteur de la voile, et des supports (3, 4) transversaux de la voile (1) dont l'un au moins présente une longueur correspondant sensiblement à la largeur de la voile. La vergue (2) est fixée au sommet du mât (8) par une jonction souple (6). Les manoeuvres, des écoutes ou similaires (5, 9) reliées à la vergue et aux supports (2, 3, 4), permettent le réglage de la position de la voile et l'autoréglage de son axe de tangage.
PCT/FI2000/000560 1999-06-23 2000-06-22 Agres de reglage de la voile d'un bateau WO2001000486A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00940435A EP1204549A1 (fr) 1999-06-23 2000-06-22 Agres de reglage de la voile d'un bateau
AU55372/00A AU5537200A (en) 1999-06-23 2000-06-22 Control gear for the sail of a sailing craft

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI991427A FI991427A (fi) 1999-06-23 1999-06-23 Purjealuksen purjeen ohjauslaitteisto
FI991427 1999-06-23

Publications (1)

Publication Number Publication Date
WO2001000486A1 true WO2001000486A1 (fr) 2001-01-04

Family

ID=8554937

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2000/000560 WO2001000486A1 (fr) 1999-06-23 2000-06-22 Agres de reglage de la voile d'un bateau

Country Status (4)

Country Link
EP (1) EP1204549A1 (fr)
AU (1) AU5537200A (fr)
FI (1) FI991427A (fr)
WO (1) WO2001000486A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1015726A3 (nl) * 2003-10-20 2005-07-05 Creative Products Bv Met Beper Zelfvarende aandrijfeenheid.
US10308621B2 (en) 2008-07-31 2019-06-04 Senomyx, Inc. Processes and intermediates for making sweet taste enhancers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068607A (en) * 1976-09-10 1978-01-17 Harmon G Lamar Controllable wing sail
DE3432970A1 (de) * 1984-09-07 1985-01-31 Peter 8217 Mietenkam Nowak Rigg fuer ein segelfahrzeug
DE3338491A1 (de) * 1983-10-22 1985-05-09 Reinhold 3006 Burgwedel Titau Segelanordnung fuer wasserfahrzeuge
DE4238786A1 (de) * 1992-11-17 1994-05-19 Klaus Ketterer Takelung für Wasserfahrzeuge mit Drehmomentkompensation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068607A (en) * 1976-09-10 1978-01-17 Harmon G Lamar Controllable wing sail
DE3338491A1 (de) * 1983-10-22 1985-05-09 Reinhold 3006 Burgwedel Titau Segelanordnung fuer wasserfahrzeuge
DE3432970A1 (de) * 1984-09-07 1985-01-31 Peter 8217 Mietenkam Nowak Rigg fuer ein segelfahrzeug
DE4238786A1 (de) * 1992-11-17 1994-05-19 Klaus Ketterer Takelung für Wasserfahrzeuge mit Drehmomentkompensation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1015726A3 (nl) * 2003-10-20 2005-07-05 Creative Products Bv Met Beper Zelfvarende aandrijfeenheid.
US10308621B2 (en) 2008-07-31 2019-06-04 Senomyx, Inc. Processes and intermediates for making sweet taste enhancers

Also Published As

Publication number Publication date
FI991427A (fi) 2000-12-24
FI991427A0 (fi) 1999-06-23
EP1204549A1 (fr) 2002-05-15
AU5537200A (en) 2001-01-31

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