FR2800348A1 - Sail boat with keel suspended from hull by ball joint which allows its longitudinal pivoting - Google Patents

Sail boat with keel suspended from hull by ball joint which allows its longitudinal pivoting Download PDF

Info

Publication number
FR2800348A1
FR2800348A1 FR9913957A FR9913957A FR2800348A1 FR 2800348 A1 FR2800348 A1 FR 2800348A1 FR 9913957 A FR9913957 A FR 9913957A FR 9913957 A FR9913957 A FR 9913957A FR 2800348 A1 FR2800348 A1 FR 2800348A1
Authority
FR
France
Prior art keywords
keel
pivoting
vessel
longitudinal
sail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR9913957A
Other languages
French (fr)
Other versions
FR2800348B1 (en
Inventor
Francois Lucas
Original Assignee
Francois Lucas
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 Francois Lucas filed Critical Francois Lucas
Priority to FR9913957A priority Critical patent/FR2800348B1/en
Publication of FR2800348A1 publication Critical patent/FR2800348A1/en
Application granted granted Critical
Publication of FR2800348B1 publication Critical patent/FR2800348B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B41/00Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels

Abstract

The boat has a keel (2) suspended from the hull structure (1) by a ball joint (4) which enables the ballasted keel to pivot longitudinally and on itself. The keel top (3) is connected to a control which enables the adjustment of the transverse and longitudinal pivoting angle and the incidence of the keel

Description

SHIP <B> '</ B>' </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ span Classically, monohull sailing vessels consist of a hull equipped with one or more masts and a small keel to stabilize the boat.

The keel consists of a keel head integral with the ship hull structure and a weighted keel fin which extends downwardly under said hull. ballast, of lead or other, can be integrated in the keel sail <B>; </ B> it can also be in the form of a bulb fixed at the lower end of the keel fin.

Already known <B> already </ B> systems of movable keels, having a possibility of transverse pivoting, that is to say a possibility of movement in a plane perpendicular <B> to </ B> the longitudinal axis of the ship, or provided with means for adjusting the incidence of the keel sail relative to the longitudinal axis of the ship, so as to facilitate or optimize certain maneuvers.

In existing systems, the possibilities of adjusting the positioning of the keel are nevertheless quite limited.

It is an object of the present invention to provide a keel system having a greater number of movement possibilities, so as to allow multiple keel web positioning adjustments to <B> at </ b>. ship hull.

The present invention comprises a keel head integral with the hull structure of the vessel by means conferring on the keeled sail a possibility of transverse pivoting and a possibility of longitudinal pivoting, said keel head being associated <B> with </ B> first control means which allow to adjust the transverse pivot angle of weighted keel keel, and <B> to </ B> seconds control means for adjusting the longitudinal pivoting angle of the weighted keel fin.

Preferably, the keel fin also has a possibility of pivoting on itself to allow the adjustment of its incidence relative to the longitudinal axis of the vessel. According to a preferred embodiment, the keel system conforming to the invention is suspended from the ship's hull structure by means of a hinge mechanism of the ball-and-socket type. .

preferably, this ball consists of a sphere which equips the keel head and which comes to rest in a support bowl of complementary shape, integral with the hull structure of the ship. This support bowl comprises an opening in the lower part, and the shell structure also comprises corresponding opening, the shape of said openings being adapted to allow transverse pivoting, longitudinal pivoting and pivoting maneuvers on itself (incidence adjustment). of the keel sail with its ballast.

The keel support bowl preferably has a generally spherical shape and is associated with a detachable bowl cap.

According to a preferred embodiment, the keel head is provided with an extension piece which extends upwards from the hinge sphere which extension piece is subjected to. B> to </ B> the action of the control means which make it possible to adjust the positioning of the weighted keel fin.

The control means of the incidence of the keel web advantageously consist of an arm integral with the keel extension piece.

The control means which make it possible to adjust the transverse pivoting angle of the keel sail with its ballast are advantageously constituted by a system of the hoist or jack type, in engagement with the keel extension piece and secured to a mounted bow. pivoting about a transverse axis of articulation.

The control means which make it possible to adjust the longitudinal pivoting angle of the weighted keel fin are advantageously constituted by a jack secured to the ship by means of a first fastening system of the ball-and-socket type, and integral with the keel extension via second fastening system of the ball joint type.

According to a particular embodiment, the keel fin is equipped with a bulb-shaped ballast hinged about an axis perpendicular <B> to the longitudinal axis of the vessel, and means of the type <B deformable parallelogram are provided between this bulb and the adjustment cylinder of the longitudinal positioning of the keel web, to maintain said horizontal or substantially horizontal bulb regardless of the longitudinal pivot angle imposed on the keel web.

But the invention will be further illustrated, without being limited in any way, by the following description of a particular embodiment, given only by way of example and shown in the accompanying drawings, in which <B> >: </ B> <B> - </ B> Figure <B> 1 </ B> is a schematic diagram of a ship equipped with a keel system compliant <B> to </ b> the FIG. 2 is a partial side view, which details a possible embodiment of the keel system compliant with the <b> </ b> </ b> <BR> <BR> <BR> <BR> <BR> <BR> <BR> invention, and which illustrates the possibilities of longitudinal pivoting of the weighted keel web <B>; </ B> <B> - </ B> the figure is a partial view of the same keel system illustrating the transverse pivoting capabilities of the keel web 4 is a cross-sectional view of the keel web according to 4 of FIG. 2.

The ship shown in Figure <B> 1 </ B> includes a hull structure <B> 1 </ B> equipped with a keel 2. The keel 2 is a keel keel consisting of a keel head <B > 3 </ B> secured to the hull structure <B> 1 </ B> via a hinge joint 4, and a keel fin <B> 5 </ B> 'extends down.

The keel sail <B> 5 </ B> may have an integrated ballast or be associated <B> with </ B> a bulb shaped ballast <B> 6 </ B> as shown in dashed lines in figure <B > 1. </ B>

The hinge ball 4 consists of a sphere <B> 8 </ B> secured to the keel head and a receiving bowl integral with the hull structure 1, which does not appear on the diagram of principle of Figure <B> 1. </ B>

The maneuverability of the keel fin <B> 5 </ B> with its ballast <B> 6 </ B> is illustrated by the arrow keys <B> 9, 10 </ B> and <B> 11 , </ B> the control means (not shown) corresponding movements acting on an extension piece which extends upwards <B> to </ B> from the articulation sphere <B> 8. </ B>

The arrow <B> 9 </ B> illustrates the keel sail operation control in perpendicular direction <B> to the longitudinal axis 14 of the ship. The control means that are implemented to adjust the pivot angle <B> </ B> transverse <B>, </ B> on one side or the other. The arrow <B> 10 </ B> illustrates the control operation of the keel web <B> 5 </ B> in the direction of the longitudinal axis 14 of the ship. The control means that are used to adjust the so-called pivot angle <B> </ B> longitudinal forward or rearward of the ship.

On the other hand the arrow of direction <B> 11 </ B> illustrates the control of pivoting on itself keel sail <B> 5 </ B> (pivoting around the vertical or substantially vertical axis), of way <B> to </ B> adjust the incidence of sail keel over <B> to </ B> the longitudinal axis 14 of the ship.

These different movements are made possible thanks to the presence of the hinge joint 4. The positioning of the keel can be adjusted to will, in transverse pivoting, in longitudinal pivoting and possibly in incidence, by the skipper or by another sailor, in particular according to the direction and strength of the wind, as well as the state of the sea.

FIGS. 2B to 4B illustrate a possible embodiment of this keel system, with the control means of the different movements. The keel 2 consists of an elongated structural web <B> 16, </ B> type welded composite, around the upper part of which is fixed the hinge sphere made for example polycarbonate type plastic. Under articulation sphere <B> 8, </ B> the structural veil <B> 16 </ B> is covered with a profiling structure <B> 17 </ B> to form the keel veil <B> 5 </ B> profiling structure can be made of synthetic foam covered with resin impregnated fiberglass.

The bulb of lead or other dense material, is fixed at the lower structural sail <B> 16. </ B>

Above the sphere <B> 8, </ B> the structural sail <B> 16 </ B> extends to form the extension piece 12 of the keel head <B> 3. </ B>

The hinge sphere <B> 8 </ B> serves as a suspension member for the entire keel 2. It comes to rest in a support bowl <B> 18 </ B> of hemispherical general shape integral with the hull structure of the ship.

In its bottom portion, the bowl <B> 18 </ B> has an opening 20 whose shape is adapted to allow the desired maneuvers of the sail keel <B> 5. </ B> A corresponding opening 21 is also arranged in the hull structure <B> 1 </ B> of the ship, whose shape and dimensions are also adapted to make these maneuvers possible.

The support <B> 18 </ B> can be associated <B> with </ B> a bolt cap reported general shape spherical sector, adapted not to interfere with the mobility of the sphere The bowl cap 22 is to preferably sealed with the support bowl <B> 18 </ B> and extends upwardly above the vessel's <B> 23 </ B> waterline.

The control means of the movement of the keel web <B> 5 </ B> act directly on the extension piece 12.

The adjustment of the transverse pivoting angle of the keel sail is achieved by means of a hoist system, schematized at 24 in the figure in engagement with the head of the extension piece 12. This hoist system is integral with the hoop < B> 25 </ B> which is pivotally mounted about a horizontal axis of articulation perpendicular <B> to </ B> the longitudinal axis 14 of the ship.

The hoist system 24 can be manually operated by a self-locking winch <B>; </ B> in an alternative embodiment, it can be replaced by an actuating cylinder.

The adjustment of the keel sail <B> 5 </ B> is achieved by lever means <B> 27 </ B> secured to the upper part of the extension piece 12. Lever <B> 27 </ B> can be articulated around a horizontal axis <B> 28 </ B> to give it flexibility of maneuvering by a possibility of vertical deflection.

The adjustment of the longitudinal pivoting angle of the keel fin <B> 5 </ B> is achieved by a jack 29 disposed in the direction of the longitudinal axis 14 of the ship, or substantially in the direction of this longitudinal axis. The cylinder body is secured to the hull structure of the ship by means of a first ball joint 30 - its rod is secured to the extension piece 12 by means of a second ball <B> 31 </ B> placed on the pivot axis <B> 15 </ B> of the keel.

The longitudinal pivoting of the keel web <B> 5, </ B> either forwards or towards the rear of the ship is illustrated in FIG. 2. During this maneuver, the hoop <B> 25 </ B > which carries the hoist system 24 follows the movement by tilting around its rotation <B> 26. </ B> The actuating control of the cylinder <B> 29 </ B> can be carried out for example by means of a manual hydraulic pump. The various settings of incidence, transverse pivoting and longitudinal pivoting of the keel web <B> 5 </ B> are carried out independently of each other in a way <B> to </ B> adapting best to the conditions of wind and sea encountered.

For example, when the wind is strong and for a <b> </ B> downwind vessel <B>, the keel sail can be tilted to the rear to prevent charging in the wave, and tipped over. laterally <B> </ B> to the wind <B> </ B> to maintain the hull as flat as possible. A slight adjustment of incidence can also be realized to put the sail of keel in the axis of the nets of water in a way <B> to </ B> to limit as much as possible the friction.

In light wind conditions and for a <B> </ B> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> wet surface of the hull, and tilted <B> </ B> downwind <B> </ B> laterally to keep the boat cruising and further reduce the wet surface of the hull. The incidence setting can be maximum (of the order of <B> 10 ') </ B> to <B> </ B> make heading <B>. </ B>

The corresponding control means are preferably directly accessible to allow rapid maneuvers.

These different settings are made by rotating the sphere <B> 8 </ B> around its central axis <B> 32. </ B>

To optimize the hydrodynamic flow of the vessel it is interesting to keep the bulb <B> 6 </ B> in a horizontal or substantially horizontal position, regardless of the longitudinal pivot angle imposed on the keel web. For this purpose, it is planned to articulate the bulb <B> 6 to </ B> the lower part of the keel sail <B> 5 </ B> around a transverse axis <B> 33 </ B> and to connect this bulb with the stem of the jack <B> 29 </ B> via a linkage 34 which extends parallel <B> to </ B> the axis <B> 1 </ B> of the keel, so <B> to </ B> constitute a system <B> to </ B> deformable parallelogram.

 Linkage 34 is integrated into the keel fin <B> 5. </ B>

The upper rear portion of the keel fin <B> 5 </ B> has a notch to allow the longitudinal pivoting maneuvers of the keel fin. In order to optimize the hydrodynamic flow, provision can be made for the presence of a retractable flap <B> 36 </ B> adapted to fill this notch <B> 35. </ B> mobile flap <B> 36 </ B> may be in the form of circular sector integral in the keel sail <B> 5 </ B> and pivotally mounted about a hinge axis <B> It </ B> advantageously comprises a system of lateral fins (not shown) ) which ensure its automatic lifting by the lateral flows of liquid related to the displacement of the ship.

To improve the hydrodynamics of the ship, the opening 21 arranged in the base of the hull can be closed by a flexible structure (plastic or rubber web) arranged to not interfere with the movements of the keel.

Claims (1)

  1. <B> - CLAIMS - </ B> Vessel <B> to </ B> sail equipped with a keel (2), which keel (2) consists of a keel head <B> (3), < / B> integral with the hull structure <B> (1) </ B> of the vessel, <B> from </ B> from which extends downwards a weighted keel fin <B> (5) , </ B> characterized in that it comprises a keel head <B> (3) </ B> integral with the shell structure <B> (1) </ B> by means (4) conferring on the weighted keel fin <B> (5) </ B> a possibility of transverse pivoting and a possibility of longitudinal pivoting, said keel head being associated <B> with </ B> of first control means (24) which allow adjust the transverse pivoting angle of the weighted keel web <B> (5), </ B> and <B> to </ B> second control means <B> (29) </ B> which make it possible to adjust the longitudinal pivoting angle of this weighted keel fin <B> (5). </ B> <B> - </ B> Vessel according to claim 1, characterized in that it comprises a keel head <B> (3) </ B > secured to the hull structure <B> (1) </ B> by means (4) giving the weighted keel sail <B> (5) </ B> a possibility of pivoting on itself to allow a adjusting its incidence relative to the longitudinal axis (14) of the ship. <B> 3 .- </ B> Ship according to any one of claims <B> 1 </ B> or 2, characterized in that comprises a keel (2) suspended <B> to </ B> the structure of hull <B> (1) </ B> through a hinge mechanism (4) of the ball joint type. <B> - </ B> Vessel according to claim <B> 3, </ B> characterized in that it comprises keel head (2) equipped with a sphere <B> (8) </ B> coming to rest in a support bowl <B> (18) </ B> complementary form integral with the shell structure <B> (1), </ B> to form the hinge ball (4) of the keel (2), which support bowl <B> (1 </ B> comprises an opening (20) in the lower part and which shell structure <B> (1) </ B> has an opening (21) in correspondence, the shape of said openings ( 20 and 21) being adapted to allow transverse pivoting, longitudinal pivoting and pivoting maneuvers on the same <B> - </ B> weighted keel sail <B> (5). </ B> <B> - </ B> Vessel according to claim 4, characterized in that it comprises bowl <B> (1 </ B> sphere holder <B> (8), </ B> of generally semispherical shape, associated <B> at </ B> a removable bowl cap (22). <B> - </ B> A vessel according to any one of claims 4 or <B> 5, </ B> characterized in that it comprises a keel head <B> (3) </ B> provided with an extension piece (12) which extends upward <B> to </ B> from the hinge sphere which piece (12) subjected <B> to </ B> the action of the control means <B> 27, 29) </ B> which make it possible to adjust the positioning of the weighted keel web <B> 7 .- </ B > Vessel according to claim 6, characterized in that the control means of the incidence of keel sail <B> (5) </ B> consist of an arm <B> (27). ) </ B> secured to the keel extension piece (12). <B> 8 .- </ B> Vessel according to any one of the claims or <B> 7, </ B> characterized in that the control means which allow to adjust the transverse pivoting angle of the weighted keel fin <B> (5) </ B> are constituted by a hoist-like system (24) or cylinder, engaged with the keel extension piece (12) and secured to a hoop <B> (25) </ B> mounted pivotably about a transverse hinge <B> (26). </ B> <B> 9 .- </ B> A vessel according to any one of claims <B> 6 to 8, </ B> characterized in that the control means which make it possible to adjust the longitudinal pivoting angle of the weighted keel fin <B> (5) </ B> consist of a cylinder <B> (29) < / B> secured to the ship by means of a fastening system of the ball <B> (30), </ B> type and secured to the keel extension piece <B> (1 </ B>) by means of a fixation system of the ball <B> type (31). </ B> 10. A ship according to claim 9, characterized in that it comprises a keel sail <B> (5) </ B> equipped with a bulb-shaped ballast <B> (6) </ B> articulated <B> to </ B> the end of said sail of keel <B> (5) </ B> around an axis <B> (33) </ B> perpendicular <B> '</ B> the longitudinal axis (14) of the ship, means (34) of the type <B> to </ B> deformable parallelogram being provided between said bulb <B> (6) </ B> and the cylinder <B> (28) </ B> for adjusting the longitudinal positioning of the keel web < B> (5), </ B> to maintain said bulb <B> (6) </ B> horizontal or substantially horizontal regardless of the longitudinal pivot angle imposed on the keel web.
FR9913957A 1999-10-27 1999-10-27 A Keelboat Expired - Fee Related FR2800348B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9913957A FR2800348B1 (en) 1999-10-27 1999-10-27 A Keelboat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9913957A FR2800348B1 (en) 1999-10-27 1999-10-27 A Keelboat

Publications (2)

Publication Number Publication Date
FR2800348A1 true FR2800348A1 (en) 2001-05-04
FR2800348B1 FR2800348B1 (en) 2002-01-11

Family

ID=9551820

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9913957A Expired - Fee Related FR2800348B1 (en) 1999-10-27 1999-10-27 A Keelboat

Country Status (1)

Country Link
FR (1) FR2800348B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455483C (en) * 2004-04-21 2009-01-28 林冈嵚 Sliding wing submerging and surfacing boat
EP2597024A1 (en) * 2011-11-25 2013-05-29 Sercel Underwater floating device
US8480443B2 (en) 2010-04-27 2013-07-09 Teofil Talos All season air propelled watercraft

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE301580C (en) *
DE121082C (en) *
DE3109307A1 (en) * 1981-03-11 1982-09-30 Vittorio Scopinich Centreboard with centreboard case for sailing boats, in particular sailboards
US4610212A (en) * 1985-10-11 1986-09-09 Petrovich Enrique G Fast self righting catamaran
DE3830820A1 (en) * 1988-09-10 1990-03-22 Guenter Rott Steerable surfboard with stability due to roll-up handling lines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE301580C (en) *
DE121082C (en) *
DE3109307A1 (en) * 1981-03-11 1982-09-30 Vittorio Scopinich Centreboard with centreboard case for sailing boats, in particular sailboards
US4610212A (en) * 1985-10-11 1986-09-09 Petrovich Enrique G Fast self righting catamaran
DE3830820A1 (en) * 1988-09-10 1990-03-22 Guenter Rott Steerable surfboard with stability due to roll-up handling lines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455483C (en) * 2004-04-21 2009-01-28 林冈嵚 Sliding wing submerging and surfacing boat
US8480443B2 (en) 2010-04-27 2013-07-09 Teofil Talos All season air propelled watercraft
EP2597024A1 (en) * 2011-11-25 2013-05-29 Sercel Underwater floating device
US8893637B2 (en) 2011-11-25 2014-11-25 Sercel Underwater floating device
US9394042B2 (en) 2011-11-25 2016-07-19 Sercel Underwater floating device

Also Published As

Publication number Publication date
FR2800348B1 (en) 2002-01-11

Similar Documents

Publication Publication Date Title
US4685410A (en) Wing sail
US4915048A (en) Vessel with improved hydrodynamic performance
US3455261A (en) Kite board
US6874441B2 (en) Boat with wake control
US6012408A (en) Wake control apparatus
US2858788A (en) Water craft
US7644672B2 (en) Monohull sailing vessel having a lifting hydrofoil
ES2337544T3 (en) Stern boat equipped with a device to divert a water flow
US5829376A (en) Outrigger watercraft
US4351262A (en) Boat hull
US5277142A (en) Variable-beam catamaran
EP1313642B1 (en) Control device for a steering kite on a boat
US6698374B1 (en) Design for tugboat
US3996874A (en) Surface craft
US3870004A (en) Sailing vessel
US7234408B1 (en) Water sport tow attachment with recoil
EP0862531B1 (en) Monohull water-borne craft
US4854904A (en) Sailboard with adjustable keel mechanism
US4852507A (en) Sail-wing and controls for a sail craft
US5163377A (en) Sailing yacht
EP0284014B1 (en) Construction system for heeling the mast of sailing boats to windward
US7798089B2 (en) Hinged radar arch for marine vessels
US8220404B2 (en) Boat suspension
US4228750A (en) Hydrofoil sailboat with control tiller
US4582011A (en) Hydrofoil vessel

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20060630