WO2008056064A2 - Braking device for the boom of a sail boat - Google Patents
Braking device for the boom of a sail boat Download PDFInfo
- Publication number
- WO2008056064A2 WO2008056064A2 PCT/FR2007/001787 FR2007001787W WO2008056064A2 WO 2008056064 A2 WO2008056064 A2 WO 2008056064A2 FR 2007001787 W FR2007001787 W FR 2007001787W WO 2008056064 A2 WO2008056064 A2 WO 2008056064A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening
- loop
- main rope
- passage
- boom
- Prior art date
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
- B63H9/08—Connections of sails to masts, spars, or the like
- B63H9/10—Running rigging, e.g. reefing equipment
- B63H9/1078—Boom brakes
Definitions
- the invention relates to a braking device for the boom of a sailboat.
- Such a device is particularly useful during a jibing maneuver.
- the latter is practiced when a sailboat sails in the downwind, when the boom is overflowed outside the sailboat.
- the jibing maneuver is to change, voluntarily or involuntarily, the heading of the boat to make it cross the wind bed from behind.
- braking devices of the boom In order to secure the jibing maneuver, it is known to use braking devices of the boom to reduce its speed of movement. A main rope is then fixed or guided at its ends on each of the edges of the sailboat, for example to the lower shrouds. The rope passes through the braking device, the latter being fixed under the boom.
- These devices comprise a body equipped with fastening means, in particular at the boom or a control rope, and braking means of a main rope whose ends are fixed or guided in two points arranged on either side of the longitudinal center line of the sailboat.
- These devices are generally complex, consisting of several pieces, bulky and expensive.
- they require for their implementation to pass one end of the rope in the braking device. They can not therefore be installed directly in the middle of the rope. The implementation of such devices is therefore long and tedious.
- the invention aims to overcome these disadvantages by providing an inexpensive braking device, lightweight, small in size and easy to install.
- the invention relates to a braking device of the aforementioned type, characterized in that the braking means comprise at least a first passage opening of a loop of the main rope, formed in the body and a second opening in the body, substantially parallel to the first opening and inside which protrudes an element for retaining the loop by passing it around it.
- the friction of the rope on the body is increased because of the different bends of the rope and the tension exerted on it.
- the projecting element is constituted by a finger projecting towards the inside of the second opening, on the opposite side to the first opening, the length of the projecting element being less than the length. the second opening along the axis of the element.
- the body comprises at least two passage openings of the loop of the main rope, substantially parallel to each other.
- the braking power is all the more important as the number and the surface of the bending zones of the rope are important. Therefore, the passage of the rope in a plurality of openings increases the braking power of the device.
- the body has three openings for passage of the loop of the main rope.
- the body is elongated and flat, the passage openings of the loop of the main rope being offset relative to each other along the longitudinal median axis of the body and centered on this axis.
- the passage opening is of oblong shape, the axis defined by the opening being substantially perpendicular to the longitudinal median axis of the body.
- the fastening means are disposed at one end of the body and centered on the longitudinal central axis thereof.
- the second opening is located on the side of the end of the body having the fastening means.
- the invention further relates to a method of using the braking device according to the invention, characterized in that it comprises the following steps:
- a second step of passage of the loop in at least one passage opening of the body a third step of passage of the loop issuing from the passage opening around the projecting element.
- the loop resulting from the passage opening is passed in the second opening and then again in the passage opening.
- the loop is then wrapped around the area of the body located between the passage opening and the second opening, so as to increase by friction the braking power.
- Figures 1 and 2 show a sailboat equipped with the braking device according to the invention, respectively according to a first and a second implementation forms;
- Figures 3 to 5 show the successive steps of a first assembly of the main rope on the braking device;
- Figure 6-8 show mounting variants of the main rope
- FIGS. 1 and 2 show a sailboat comprising a mast 1 equipped with a terminal 2 and a sail 3.
- a braking device 4 also called a terminal brake, is arranged under the boom 2 and fixed thereto by means of a shackle 5.
- a main rope 6 is mounted on the braking device 4, the two ends of the main rope being brought to the cockpit by means of return pulleys 8 fixed on each edge of the sailboat to the bottom of the shrouds.
- the tension of the rope can then be adjusted at the level of the cockpit.
- the ends of the main rope 6 are directly attached to the lower shrouds.
- the braking device 4 is connected to a first end of a control rope 10 on which a voltage can be set in a predefined manner.
- the second end of the control rope is brought to the cockpit by means of return pulleys 11.
- the tension exerted on the braking device 4 then influences the tension of the main rope 6 and, consequently, the braking power.
- the braking device 4 comprises a body 12 made of metal material and forged in one piece.
- the body 12 is of elongate and flat shape, the fixing shackle 5 being disposed at a first end 13 of the body 12.
- the body comprises first 14, second 15 and third 16 oblong passage openings, offset relative to each other along the longitudinal median axis A of the body 12, respectively from the first end 13 to the second end 17 of the body 12, and centered on the axis A.
- each of the passage openings 14, 15, 16 is disposed substantially perpendicular to the axis of the body A.
- the body further comprises an opening 18 formed between the passage openings 14, 15, 16 and the first end 13 of the body 12, within which it projects, along the axis of the body A and in the direction of the first end 13, a finger 19 forged with the body 12.
- the length of the finger 19 is less than the length of the opening 18 along the axis of the body A.
- the space defined between the free end of the finger 19 and the body 12 is at least equal to the current diameter of a rope. .
- this braking device being suitable for sailboats equipped with sails having an area of up to 40m 2 .
- a loop 20 is formed on the main rope 6.
- a second step shown in Figure 4 is to pass the loop 20 in a passage opening. In this type of assembly, it is a question of the first passage opening 14.
- the loop 20 issuing from the passage opening 14 is arranged around the finger 19, at the inside the second opening 18 located at the first end 13 of the body 12.
- the braking device 4 can thus be positioned on the main rope 6 without the need to detach the braking device 4 or the ends of the rope 6.
- FIG. 6 describes a second type of assembly in which the loop 20 is passed through the second passage opening 15, then into the first 14, then finally around the finger 19.
- FIG. 7 describes a third type of assembly in which the loop 20 is passed successively in the third passage opening 16, in the second 15, in the first 14 and finally around the finger 19.
- FIG. 8 describes a fourth type of assembly, similar to that represented in FIG. 4, in which the loop 20 passes successively in the third passage opening 16, in the second 15, in the first 14, in the equipped opening 18. finger, again in the first opening passage 14 and finally around the finger 19.
Landscapes
- 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)
- Braking Arrangements (AREA)
- Jib Cranes (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Emergency Lowering Means (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/513,820 US20090320732A1 (en) | 2006-11-07 | 2007-10-29 | Braking device for the boom of a sail boat |
AU2007316515A AU2007316515A1 (en) | 2006-11-07 | 2007-10-29 | Braking device for the boom of a sail boat |
AT07866459T ATE495971T1 (en) | 2006-11-07 | 2007-10-29 | BRAKE DEVICE FOR THE MAST OF A SAILBOAT |
DE602007012134T DE602007012134D1 (en) | 2006-11-07 | 2007-10-29 | |
EP07866459A EP2086829B1 (en) | 2006-11-07 | 2007-10-29 | Braking device for the boom of a sail boat |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0609707 | 2006-11-07 | ||
FR0609707A FR2908172B1 (en) | 2006-11-07 | 2006-11-07 | BRAKING DEVICE FOR THE BOMBER OF A SAILBOAT |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008056064A2 true WO2008056064A2 (en) | 2008-05-15 |
WO2008056064A3 WO2008056064A3 (en) | 2008-07-03 |
Family
ID=37834195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2007/001787 WO2008056064A2 (en) | 2006-11-07 | 2007-10-29 | Braking device for the boom of a sail boat |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090320732A1 (en) |
EP (1) | EP2086829B1 (en) |
CN (1) | CN101588963A (en) |
AT (1) | ATE495971T1 (en) |
AU (1) | AU2007316515A1 (en) |
DE (1) | DE602007012134D1 (en) |
FR (1) | FR2908172B1 (en) |
WO (1) | WO2008056064A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011116142A1 (en) | 2011-10-15 | 2013-04-18 | Jürgen Wöltjen | Device for preventing uncontrolled gybing of e.g. kicker of sailing boat, has brake rope guided by brake element that is arranged at large boom of mast, where rope tensioner provides springy lateral force on brake rope |
SE2230326A1 (en) * | 2022-10-08 | 2024-03-12 | Thorleif Thorlin | A mast mounted rope device for boom control |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4138962A (en) | 1976-09-17 | 1979-02-13 | Ernest Waelder | Device for controlling the swinging of the boom of a sailboat |
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. |
GB2358847A (en) | 2000-02-02 | 2001-08-08 | Donald Alan Scott | A device for controlling the lateral movement of the boom of a sailing boat |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2103630A (en) * | 1934-08-01 | 1937-12-28 | Morin Paul Gerard | Cleat |
US3396689A (en) * | 1967-07-25 | 1968-08-13 | Edmund T. Sommer | Sailboat rigging |
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 |
US4830340A (en) * | 1987-12-14 | 1989-05-16 | Willie Loree Franklin | Rope grip apparatus |
CA2224363A1 (en) * | 1997-12-08 | 1999-06-08 | 1217145 Ontario Inc. | Rope clamp |
CA2240367A1 (en) * | 1998-06-11 | 1999-12-11 | Llewellyn Bertram Parsons | Rope clamp |
SE0001932D0 (en) * | 2000-05-24 | 2000-05-24 | David Sandahl | Device for dampening jerks |
-
2006
- 2006-11-07 FR FR0609707A patent/FR2908172B1/en not_active Expired - Fee Related
-
2007
- 2007-10-29 CN CNA200780041200XA patent/CN101588963A/en active Pending
- 2007-10-29 EP EP07866459A patent/EP2086829B1/en active Active
- 2007-10-29 US US12/513,820 patent/US20090320732A1/en not_active Abandoned
- 2007-10-29 AT AT07866459T patent/ATE495971T1/en not_active IP Right Cessation
- 2007-10-29 DE DE602007012134T patent/DE602007012134D1/de active Active
- 2007-10-29 WO PCT/FR2007/001787 patent/WO2008056064A2/en active Application Filing
- 2007-10-29 AU AU2007316515A patent/AU2007316515A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4138962A (en) | 1976-09-17 | 1979-02-13 | Ernest Waelder | Device for controlling the swinging of the boom of a sailboat |
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. |
GB2358847A (en) | 2000-02-02 | 2001-08-08 | Donald Alan Scott | A device for controlling the lateral movement of the boom of a sailing boat |
Also Published As
Publication number | Publication date |
---|---|
DE602007012134D1 (en) | 2011-03-03 |
EP2086829A2 (en) | 2009-08-12 |
CN101588963A (en) | 2009-11-25 |
AU2007316515A1 (en) | 2008-05-15 |
FR2908172A1 (en) | 2008-05-09 |
US20090320732A1 (en) | 2009-12-31 |
ATE495971T1 (en) | 2011-02-15 |
FR2908172B1 (en) | 2009-01-09 |
WO2008056064A3 (en) | 2008-07-03 |
EP2086829B1 (en) | 2011-01-19 |
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