FR2725952A1 - Sailing craft buoyancy system - Google Patents
Sailing craft buoyancy system Download PDFInfo
- Publication number
- FR2725952A1 FR2725952A1 FR9412914A FR9412914A FR2725952A1 FR 2725952 A1 FR2725952 A1 FR 2725952A1 FR 9412914 A FR9412914 A FR 9412914A FR 9412914 A FR9412914 A FR 9412914A FR 2725952 A1 FR2725952 A1 FR 2725952A1
- Authority
- FR
- France
- Prior art keywords
- volume
- volumes
- sailboat
- buoyancy
- hull
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
- B63B43/10—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy
- B63B43/12—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy using inboard air containers or inboard floating members
-
- 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
Abstract
Description
VOLUMES de FLOTTABILITE pour VOILIER
L'invention concerne l'existence et la disposition de volumes de flottabilité d'un voilier. De part l'existence et la disposition de ceux-ci. le voilier est conçu pour ne pas avoir d'autre, position de stabilité que la position normale. "lest en bas" On peut alors parler de voilier "autoredressant@
Les voiliers actuels comportent tous une coque. une quille(lest) et un gréement.Dans l'état tous Ces voiliers sont stables en position retournée. c'est à dire qu@ils ne reviennent pas d'eux-mêmes à leur position normale d'équilibre (à l'endroit le lest en bas...). ce qui engendre en général le déclenchement de secours
Le principe de l'invention concerne l'existence d'une bulle de flottabilité accrochée au-dessus du voilier et la disposition d'un certain nombre de volumes de flottabilité disposés dans la coque.La bulle permet de rendre le voilier instable lorsqu'il est à l'envers afin de retrouver sa position à l'endroit
Des applications particulières de ce principe sont:
- les voiliers existantes sur lesquels une bulle de flottabilité suffisante serait disposée au-dessus de leur coque.BUOYANCY VOLUMES for SAILING BOAT
The invention relates to the existence and arrangement of buoyancy volumes of a sailboat. Due to the existence and disposition of these. the sailboat is designed to have no other position of stability than the normal position. "ballast down" We can then speak of a sailboat "self-righting @
Today's sailboats all have a hull. a keel (ballast) and a rigging. In the state all These sailboats are stable in the inverted position. that is to say that they do not return by themselves to their normal equilibrium position (at the ballast place at the bottom ...). which generally generates the emergency release
The principle of the invention relates to the existence of a buoyancy bubble hung above the sailboat and the arrangement of a certain number of buoyancy volumes arranged in the hull. The bubble makes it possible to make the sailboat unstable when it is upside down to regain its position
Specific applications of this principle are:
- existing sailboats on which a sufficient buoyancy bubble would be placed above their hull.
- les voiliers existants sur lesquels une bulle de flottabilité gonflable serait disposée au-dessus de leur coque. Lors d'un retournement du @ voilier le gonflement de la bulle occasionnera le retour à l'endroit du @ voilier. - existing sailboats on which an inflatable buoyancy bubble would be placed above their hull. During an overturning of the @ sailboat the swelling of the bubble will cause the return to the place of the @ sailboat.
- les voiliers spécialement conçus sur ce principe et dont les volumes sont optimisés en fonction du cahier des charges (poids du voilier. hauteur de gréement...)
Les dessins annexes illustrent l'invention
La figure 1 représente. en coupe. les volumes de flottabilité
La figure 2 représente la position du s-oilier vers 90" de gite
La figure 3 représente la position du voilier vers 180 de gite
La figure 4 représente les courbes de stabilité d'un voilier type
Selon la figure 1. le voilier possède un volume (1). appellé bulle de flottabilité. situé au dessus de la coque du voilier et des volumes internes de flottabilité disposés de façon spécifique. soit un volume sur l'étrave (3) et deux volumes sur chaque bordé (2) et (2').- sailboats specially designed on this principle and whose volumes are optimized according to the specifications (weight of the sailboat. rigging height ...)
The accompanying drawings illustrate the invention
Figure 1 shows. sectional. buoyancy volumes
Figure 2 shows the position of the oil tanker around 90 "from the gite
Figure 3 represents the position of the sailboat around 180 of gite
Figure 4 shows the stability curves of a typical sailboat
According to Figure 1. the sailboat has a volume (1). called a buoyancy bubble. located above the hull of the sailboat and the internal buoyancy volumes arranged in a specific way. either a volume on the bow (3) and two volumes on each planking (2) and (2 ').
Dans sa position normale. [quille (6) en bas. mât (7) en haut]. le voilier flotte sur les volumes (2). (2'). et (3). In its normal position. [keel (6) below. mast (7) above]. the sailboat floats on the volumes (2). (2 '). and (3).
Selon la figure 2. aux allentours de 90 de gite. le voilier flotte sur les volumes (2) et (3) ou (2') et (3). According to Figure 2. around 90 cottage. the sailboat floats on volumes (2) and (3) or (2 ') and (3).
Selon la figure 3. en position retournée. le voilier flotte sur les volumes (1) et (3) et possède toujours un moment de redressement non nul. According to Figure 3. in the inverted position. the sailboat floats on volumes (1) and (3) and always has a non-zero recovery moment.
La figure 4 expose les courbes de stabilité d'un @ voilier standard. avec et sans la bulle de flottabilité Selon la courbe (4). on remarque qu'il existe un puits de potentiel empêchant un voilier sans bulle de se redresser après un certain angle (α). Selon la courbe (5). ce puits de potentiel peut devenir nul a-ec une bulle (1)
et permettre ainsi l' instabilité du voilier retounié. Figure 4 shows the stability curves of a standard sailboat. with and without the buoyancy bubble According to curve (4). we notice that there is a potential well preventing a bubble-free sailboat from recovering after a certain angle (α). According to curve (5). this potential well can become zero with a bubble (1)
and thus allow the instability of the overturned sailboat.
Selon une variante de disposition des volumes (2).(2') et (3). le voilier peut
être semi-submersible à partir d' un certain angle de gîte
L'existence de la bulle de flottabilité et la disposition des autres volumes ont
des débouchés sur tous les voiliers naviguants actuellement. According to a variant of arrangement of the volumes (2). (2 ') and (3). the sailboat can
be semi-submersible from a certain angle of heel
The existence of the buoyancy bubble and the arrangement of the other volumes have
outlets on all currently sailing yachts.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9412914A FR2725952A1 (en) | 1994-10-21 | 1994-10-21 | Sailing craft buoyancy system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9412914A FR2725952A1 (en) | 1994-10-21 | 1994-10-21 | Sailing craft buoyancy system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2725952A1 true FR2725952A1 (en) | 1996-04-26 |
Family
ID=9468305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9412914A Pending FR2725952A1 (en) | 1994-10-21 | 1994-10-21 | Sailing craft buoyancy system |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2725952A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2799431A1 (en) * | 1999-10-08 | 2001-04-13 | Neptune Concept | DEVICE FOR AID TO THE RECOVERY AND STABILIZATION OF BOATS OR SHIPS AND BOAT OR VESSEL EQUIPPED WITH SUCH A DEVICE |
EP1149759A1 (en) * | 2000-04-26 | 2001-10-31 | Jean-Francois Vincent | Marine safety projection |
WO2007048358A2 (en) * | 2005-10-26 | 2007-05-03 | Karel Jan Stolc | The matter for safety purposes and its utilization |
ITMI20110421A1 (en) * | 2011-03-16 | 2012-09-17 | Castoldi S P A | SELF-STRAIGHTENING DEVICE FOR RESCUE BOATS |
-
1994
- 1994-10-21 FR FR9412914A patent/FR2725952A1/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2799431A1 (en) * | 1999-10-08 | 2001-04-13 | Neptune Concept | DEVICE FOR AID TO THE RECOVERY AND STABILIZATION OF BOATS OR SHIPS AND BOAT OR VESSEL EQUIPPED WITH SUCH A DEVICE |
WO2001026958A1 (en) * | 1999-10-08 | 2001-04-19 | Neptune Concept | Device for aiding the balancing and stabilising of boats or ships |
EP1149759A1 (en) * | 2000-04-26 | 2001-10-31 | Jean-Francois Vincent | Marine safety projection |
FR2808253A1 (en) * | 2000-04-26 | 2001-11-02 | Jean Francois Vincent | NAUTICAL SAFETY SURFACE |
WO2007048358A2 (en) * | 2005-10-26 | 2007-05-03 | Karel Jan Stolc | The matter for safety purposes and its utilization |
WO2007048358A3 (en) * | 2005-10-26 | 2007-07-19 | Karel Jan Stolc | The matter for safety purposes and its utilization |
ITMI20110421A1 (en) * | 2011-03-16 | 2012-09-17 | Castoldi S P A | SELF-STRAIGHTENING DEVICE FOR RESCUE BOATS |
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