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WO2007126374A1 - Dispositif pour tangon de voilier dispose de maniere a restreindre le mouvement de pivotement rapide du tangon - Google Patents

Dispositif pour tangon de voilier dispose de maniere a restreindre le mouvement de pivotement rapide du tangon Download PDF

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Publication number
WO2007126374A1
WO2007126374A1 PCT/SE2007/050263 SE2007050263W WO2007126374A1 WO 2007126374 A1 WO2007126374 A1 WO 2007126374A1 SE 2007050263 W SE2007050263 W SE 2007050263W WO 2007126374 A1 WO2007126374 A1 WO 2007126374A1
Authority
WO
WIPO (PCT)
Prior art keywords
boom
pivoting
strap
reel
wedge
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.)
Ceased
Application number
PCT/SE2007/050263
Other languages
English (en)
Inventor
Thomas Hjertberg
Lennart Lindblad
Lars Samuelsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AUTOLYCOS AB
Original Assignee
AUTOLYCOS AB
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
Priority claimed from SE0600936A external-priority patent/SE0600936L/xx
Application filed by AUTOLYCOS AB filed Critical AUTOLYCOS AB
Priority to EP07748424A priority Critical patent/EP2010428A1/fr
Publication of WO2007126374A1 publication Critical patent/WO2007126374A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/145—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only rotary movement of the effective parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2224/00—Materials; Material properties
    • F16F2224/04—Fluids
    • F16F2224/041—Dilatant

Definitions

  • the present invention relates to a device, for a sailboat, which has a pivoting boom and which is arranged to restrict the rapid pivoting motion of the boom in connection with the utilization of the same, foremost when sailing before the wind in the intended sailing direction of the boat, and which between the boat and the boom has a coupled brake formed of a strap or another pulling member and a strap-locking reel having the function of braking the strap, etc., upon rapid pulling actuation of the same, and which strap-locking reel is arranged to, upon rapid actuation and pivoting of the boom, brake the continued pulling out of the strap, etc., from the reel, thereby retaining the boom and instantaneously delaying the continued pivoting back thereof over the boat.
  • a device known by, for instance, SE 525 403 C comprises a strap- locking reel of the seat-belt type. Sun, salt and winds can, in that connection, effect detrimentally primarily on said reel. Also other boom-breaking devices are available that are more or less enclosed and then protected from outside.
  • EP 1655220 A2 relates to a boom-restricting device operating with oil.
  • a chamber (2) receives a disc-shaped piston (20, 21) connected with the boom and that makes the oil in the chamber to flow through an opening (22) in the piston (21).
  • the damping capability can be adjusted by changing the size of the opening and changing the viscosity of the oil, respectively. See column 6, line 5-10. No straps, etc., are pre- sent therein. No damping device that only damps upon a rapid pivoting-motion actuation of a said joint is possible to be achieved with this known device.
  • WO 9814245 and JP 2000179605 A show the pres- ence of dampers that operate with a dilatant material but not with belts, except for a bicycle hub of an exercise-training machine. Any damping of a sudden rapid pivoting actuation is neither intended to be attained in these known solutions.
  • the main object of the present in- vention is primarily to solve said problems in an efficient and reliable way.
  • a device which essentially is characterized in that the reel comprises two mutually rotatable turning elements, and that a dilatant material, i.e., a material the viscosity of which increases in proportion to a shear rate applied to said material, is received between the same, the outer turning element forming a deflection roller for a strap, etc., connected to the hull of the sailboat and being rotatably mounted, and that on the inside, the deflection roller has a number of radial projections arranged distributed along the circumference of the deflection roller, preferably evenly distributed.
  • a dilatant material i.e., a material the viscosity of which increases in proportion to a shear rate applied to said material
  • the invention also relates to a device for a pivot joint, which has pair-wise mutually pivotably mounted pivoting arms and which is arranged to restrict rapid pivoting motions between the same, and that a brake comprising a reel has the function of braking the pivoting motion upon rapid pivoting actuation of the pivot joint.
  • An additional object according to the invention is to provide a device for a pivot joint, which is braked efficiently and which is arranged to be usable for other objects than braking the motion of a boom at a sailboat.
  • a device which essentially is characterized in that the reel comprises two mutually ro- tatable turning elements, and that a dilatant material, i.e., a material the viscosity of which increases in proportion to a shear rate applied to said material, is received between the same, and that at least one of the turning elements has a number of radial projections, which extend into a ring-shaped space intended for the receipt of said dilatant material.
  • Fig. 1 shows a side-section view of a strap reel according to a first embodiment example
  • Fig. 2 shows a section along the line II-II in
  • Fig. 3 shows an exploded view of a boom pivot- restricting brake
  • Fig. 4 shows the brake in Fig. 3 in a partly assembled state but without one end portion
  • Figs. 5 and 6 show in perspective and in an exploded view, respectively, a pivot joint suitable as a door closer,
  • Figs. 7 and 8 show in an exploded view and in perspective, respectively, a pivot joint suitable as a vehicle- seat joint
  • Figs. 9-16 show a second embodiment example of a boom pivot-restricting brake, wherein
  • Figs. 9-10 show the brake as seen from the side and in cross-section, respectively, in a disengaged state
  • Figs. 11-12 show the brake as seen from the side and in cross-section, respectively, in a braked state
  • Figs. 13-16 show the brake in exploded views and in partly assembled states, respectively
  • Figs. 17-18 show cross-sections of a third variant of brake in a disengaged state and a braked state, re- spectively,
  • Fig. 19 shows the brake mechanism in an assembled state on a boat
  • Fig. 20 schematically shows a boat and the boomed mast thereof with the boom in the respective maximally turned-out states thereof.
  • a device intended to be used for a sailboat which has a pivoting boom and which is arranged to restrict the rapid pivoting motion of the boom in connection with the utilization of the same, foremost when sailing before the wind in the intended sailing direction of the boat, has between the boat and the boom a coupled brake 1 formed of a strap 2 or another suitable pulling member, such as, e.g., a line, wire, chain, etc., and a strap-locking reel 3 having the function of braking the strap 2, etc., upon rapid pulling actuation of the same, e.g., when the boom is actuated by the wind causing too a strong pivoting actuation.
  • said pulling member and the parts therefor are henceforth only re ⁇ ferred to as strap and strap-co-operating parts.
  • said strap-locking reel 3 is arranged to, upon rapid actuation and pivoting of the boom, brake the continued pulling out of the strap 2 from the reel 3, thereby instantaneously retaining the boom and delaying the continued pivoting back thereof over the boat.
  • the reel 3 comprises two mutually rotatable turning elements 4, 5.
  • said brake 1 is arranged in such a way that the outer turning element 4 of the strap-lock- ing reel 3 forms a deflection roller for a strap 2 or another pulling member, which is connected to the hull, not shown, of the sailboat by the strap ends thereof.
  • Said turning element 4 is rotatably mounted around the central shaft 8 of the brake.
  • said deflection roller 4 has teeth 9 or other grip-enhancing members co-operatable with the strap 2.
  • pair-wise, fixed or movable, tension rollers 10, 11 may be arranged in close connection to said deflection roller 4, preferably at a variable distance L from each other.
  • Said inner turning element is preferably formed of a non-turnable shaft 5 mounted on said inner shaft 8.
  • the deflection roller 4 and the non-turnable shaft 5 have a number of radial internal and external, respectively, projections 12 and 13, respectively.
  • the internal inwardly turned and external outwardly turned projections 12 and 13, respectively, are arranged evenly distributed along the deflection roller 4 and the circumference of the non-turnable shaft 5, respectively, preferably displaced 90° from each other.
  • the tension rollers 10, 11 are connected to a holder unit 50 movable in a common direction and formed of a stiff external link arm.
  • Said holder unit 50 is arranged to be movable within the limitation of transverse elongate holes 51, 52 as a common unit via bolts 53, 54.
  • Bolts 55 may also be used to hold together the end portions 15, 16 of the device 14 and having intermediate distance sleeves 56.
  • the strap, etc., 2 is also deflected around tension rollers 10, 11 in addition to running around the deflection roller 4 and against the external teeth 9 thereof, and depending on the action of the strap 2 on the holder unit 50, the same is actuated to move laterally, however with restricted motion because of the lateral extension of the holes 51, 52.
  • the function of the braking of the strap 2 by the roller 4 is, however, as has been mentioned according to the above.
  • the strap ends 2A, 2B are attached to chain- plates or other fittings on the rail of the boat, while the rest of the device 14 is attached to the boom in question. Rapid actuation of the boom and that results in a force actuation of the boom so as to be pivoted rapidly without warning, is now braked by means of said brake 1 and by means of the containing dilatant material 7.
  • FIG. 5 and 6, and 7 and 8, respectively shows a device for a pivot joint 250 and 350, respectively, formed as a knee-joint and suited to be used, for instance, as a door closer and as a pivot joint, respectively, in, for instance, a vehicle seat at the connection between a seat cushion and a back cushion.
  • Said pivot joint 250 and 350 respectively, has pair-wise mutually pivotably mounted pivoting arms 280, 281; 380, 381 and that is arranged to restrict rapid pivoting motions between the same, and that a brake 201, 301 comprising a reel 203, 303 has the function of braking the pivoting motion upon rapid pivoting actuation of the pivot joint 250, 350.
  • the reel 203, 303 comprises two mutually rotatable turning elements 204, 205; 304, 305 and that a dilatant material 207, 307, i.e., a material the viscosity of which increases in proportion to a shear rate applied to said material, is received between the same.
  • a dilatant material 207, 307 i.e., a material the viscosity of which increases in proportion to a shear rate applied to said material
  • Said turning elements 204, 205; 304, 305 have a number of radial projections 212, 213; 312, 313 evenly distrib- uted along the circumference and extending into a ring-shaped space 251; 351 intended for the receipt of said dilatant material 207; 307.
  • One of the turning elements 204 is integrated with a pivot-joint arm 280 and said pivot joint is, for in- stance, a door closer having two hinged single or double pivot- joint arms 280, 281.
  • the second turning element is formed of a mounted roller 205 received inside the first turning element 204.
  • the pivot-joint arms 280, 281 are held together by means of screwed-together washers 282, 283 and screws 284, such as is shown in the drawings.
  • Outgoing shafts 285 from the roller 205 have an out of round cross-section, and a congruent opening 286 of the respective arms 281 interconnects the same non-turnably in relation to each other, while a round opening 287 is present in the washers 282, and that makes that the shaft can be ro- tated freely therein.
  • one of the turning elements is a detachable ring 304 that inside the space 351 receives the rotatably mounted roller 305.
  • the pivot joint 350 is, for instance, a connection between a seat cushion and a back cushion of a vehicle seat by the pair-wise mutually pivotably mounted joint arms 380, 381 thereof.
  • the shafts 385 of the roller 305 are also out of round, i.e., irregular, and mate to the congruent openings 386 in one of the pair of arms 381 and the round, i.e., regular, openings 387 in the other pair of arms 380, respectively.
  • a dilatant material is a material where the viscosity increases in proportion to an applied shear rate.
  • a dilatant fluid is a type of generalized Newtonian fluid in which the shear stress is given by the formula:
  • K is the flow-viscosity index
  • duldy is the shear rate or the velocity gradient perpendicular to the shear plane
  • n is the index for the flow properties. For dilatant materials, n > 1, and for non-dilatant materials, n ⁇ 1.
  • a mechanism 500 which is arranged to change the mutual axial position of said two turning elements 104, 105, is arranged, whereby the pivoting speed of the boom 70 is arranged to be adjustable by means of the velocity gradient of said dilatant material 107.
  • the mechanism 500 which preferably is arranged to be actuated manually but which naturally also is suitable for remote actuation using suitable means therefor, is arranged to move the inner turning element 105 radially 501, 502 so that the distance A between the two turning elements 104, 105 along one side B thereof is varied.
  • said distance A is arranged to be adjustable variably.
  • the mechanism 500 comprises a wedge element 503, which is actuatable to be com- pulsorily displacable so that it is pressed against an abut- ting, undisplaceably mounted pressure element 504 also having a wedge surface 505.
  • the wedge element 503 and pressure element 504 are arranged to co-operate with each other by the wedge elements 506, 507 thereof abutting against and co-operating with each other in order to be moved in rela- tion to each other perpendicularly 501, 502 to the intended displacement direction 508, 509 of the intended displaceable wedge element 503.
  • Suitable wedge angle X of the displaceable wedge element 503 is approx. 30°, and that the corresponding wedge angle Y of the undisplaceable pressure element 504 then is approx. 60°.
  • the wedge elements 503, 504 are received in a common shape-adapted recess 590 in a shaft 512.
  • said wedge element 503 and/or pressure element 504 are/is received in a recess 510 shape-adapted therefor and arranged in an internal hollow space 511 intended for the receipt of a bearing shaft 512 in said inner turning element 105.
  • Said hollow space 511 and a shaft 512, receivable therein, of said in- ner turning element 105 have parallel plane guide surfaces 513- 516 fitting to each other.
  • the mechanism 500 comprises a control, preferably a manually actuatable turnable knob 517, which is connected to a turnable threaded 518 shaft 519 and which is arranged to actuate a wedge-shaped displaceable element 503 to be brought in the axial direction 508, 509 of the shaft in order to provide co-operation with an undisplaceably clamped element 504.
  • a control preferably a manually actuatable turnable knob 517, which is connected to a turnable threaded 518 shaft 519 and which is arranged to actuate a wedge-shaped displaceable element 503 to be brought in the axial direction 508, 509 of the shaft in order to provide co-operation with an undisplaceably clamped element 504.
  • said turnable threaded 518 shaft 519 is detachably interconnectable with said displaceable ele ⁇ ment 503, for instance, via a dovetail-shaped notch extending transverse to the direction of motion of the element and a corresponding complementary coupling part or any other suitable coupling of known type.
  • the actuatable movable wedge element 503 is situ ⁇ ated over the fixed immovable wedge element 504.
  • the shaft 519 is received in a through hole 590 in the bearing shaft 512.
  • Said mechanism 500 is arranged so that the function thereof is to adjust the brake action in the deflec- tion drum by displacing the centre part in relation to the mounting of the deflection drum. This is accomplished by the fact that the wheeled screw presses the wedge in between the locked bearing shaft and the non-rotatable, but displaceable, centre part. Furthermore, the centre part is surrounded by a freely rotating mounting ring. The polymer mass, which fills the space between the mounting ring and the deflection drum, is upon "resetting" unaffected when rotating the deflection drum, and gives accordingly no braking effect in this state.
  • a strap 2 according to previous examples mentioned above, or a wire, a chain or any other suitable pulling member that can be arranged to abut against and co-operate with a reel, a wheel, etc., for reeling onto and unreeling from, respectively, the same may accordingly be possible to be applied for a device according to the present invention, but in the examples, only a strap and strap reel are shown and described as a pulling member and reeling-receiving element, respectively.
  • a freely rotatable smooth mounting ring 575 is threaded onto said non-turnable turning element 105 to obstruct the polymer mass 107 from adhering thereto, and in order to prevent the polymer mass from "filling", i.e., penetrating out through possible hollow spaces, sealing rings 576, 577, 578, 579 are arranged, for instance, o-rings received in mating grooves 580, 581, 582, 583 in the side edge surface of said turning elements 104, 105 facing away from each other.
  • Figs. 17 and 18 show an example for a boom reel 604, and where the internal movable turning elements 605 thereof are actuatable to be displaced radially by a wedge pack 450 where the wedge elements 493, 404 are arranged opposite to what is the case in the example described and shown above, but yet at the top on the movable centre shaft 412.
  • Fig. 17 shows the wedge pack 450 in a retracted position I so that the internal turning element 650 is substan- tially positioned having the centre axis in common with the surrounding boom reel 604.
  • Fig. 17 shows the wedge pack 450 in a retracted position I so that the internal turning element 650 is substan- tially positioned having the centre axis in common with the surrounding boom reel 604.
  • One of the most dangerous and most feared sail settings is a main sail fully sheeted out when running free. If one is slightest inattentive, a "jibe" may occur. The sail and boom then shift without control from the outer position of one side to the other one with the risk of personal injuries and material damage as a consequence.
  • the present invention now solves this, among other things, reliably and efficiently.
  • the invention which may be denominated preventer guy since it efficiently protects against uncontrolled pivoting of the boom 70 on a sailboat 501, is based on a polymer mass that has the unique property that the greater speed the mass is subjected to, the stiffer it becomes. Translated into preventer-guy terms, this means that the pivoting speed of the boom can be adjusted by means of the velocity gradient of the polymer mass.
  • the guy locks the strap in order to subsequently release and slide along the strap running from rail to rail.
  • the guy it is possible to determine by which speed the boom should pivot.
  • the guy can also contribute by the fact that it is now possible to sail with pressure in the sail during the entire jibe.
  • the handling of the invention is also simple.
  • two strops are attached in the rail on each side of the boat.
  • the attachment may be permanent or detachable.
  • On each strop there is a tongue that then is attached to the strap, etc., of the guy using a quick-coupling of the safety-belt type.
  • the guy is attached to the boom in level with the kick, and the strap is adjusted in respect of the desired pivoting angle of the boom.
  • an initial setting has to be made in re- spect of the area of the main sail.
  • the different positions may be marked on a scale along which the knob actuating the wedges to change the braking function may be turned manually.
  • the guy may be adapted to weak, moderate or strong wind, and said positions may suitably be marked with an appurtenant marker for future use.
  • the guy may both be mounted and dismounted easily.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)
  • Emergency Lowering Means (AREA)
  • Jib Cranes (AREA)

Abstract

La présente invention concerne un dispositif, de préférence pour voiliers, etc., présentant un tangon pivotant et disposé de manière à restreindre le mouvement de pivotement rapide du tangon lié à l'utilisation de celui-ci, particulièrement lors de la navigation avec vent en poupe, dans la direction intentionnelle de navigation du bateau. Entre le bateau et le tangon, un frein (1) est couplé, lequel est formé d'une lanière (2) et d'une bobine de verrouillage de lanière (3) dont la fonction est de freiner la lanière (2) lors du tirage rapide de celle-ci. La bobine de verrouillage de lanière (3) est conçue de manière à freiner, lors de l'actionnement et du pivotement du tangon, le tirage continu de la lanière (2) à partir de la bobine (3), ce qui retient le tangon et empêche le pivotement continu vers l'arrière de celui-ci au-dessus du bateau. Conformément à la présente invention, la bobine (3) comprend deux éléments (4, 5) rotatifs l'un par rapport à l'autre. Entre ceux-ci, un matériau dilatant (7) est reçu, c'est-à-dire un matériau dont la viscosité augmente proportionnellement à un taux de cisaillement appliqué audit matériau. Ledit matériau dilatant (7) freine le pivotement du tangon en cas de vitesse élevée de pivotement, et permet le pivotement du tangon en cas de vitesse faible de pivotement.
PCT/SE2007/050263 2006-04-27 2007-04-23 Dispositif pour tangon de voilier dispose de maniere a restreindre le mouvement de pivotement rapide du tangon Ceased WO2007126374A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07748424A EP2010428A1 (fr) 2006-04-27 2007-04-23 Dispositif pour tangon de voilier dispose de maniere a restreindre le mouvement de pivotement rapide du tangon

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE0600936-9 2006-04-27
SE0600936A SE0600936L (sv) 2006-04-27 2006-04-27 Anordning vid svängled
SE0700464-1 2007-02-26
SE0700464A SE532805C2 (sv) 2006-04-27 2007-02-26 Anordning vid svängled för segelbåts bom

Publications (1)

Publication Number Publication Date
WO2007126374A1 true WO2007126374A1 (fr) 2007-11-08

Family

ID=38655801

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2007/050263 Ceased WO2007126374A1 (fr) 2006-04-27 2007-04-23 Dispositif pour tangon de voilier dispose de maniere a restreindre le mouvement de pivotement rapide du tangon

Country Status (3)

Country Link
EP (1) EP2010428A1 (fr)
SE (1) SE532805C2 (fr)
WO (1) WO2007126374A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE2230326A1 (en) * 2022-10-08 2024-03-12 Thorleif Thorlin A mast mounted rope device for boom control

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998014245A1 (fr) * 1996-09-30 1998-04-09 Räsontec N.V. Appareil de fitness
JP2000179605A (ja) * 1998-12-15 2000-06-27 Toyota Motor Corp ダンパ装置
SE525403C2 (sv) * 2004-03-15 2005-02-15 Lars Samuelsson Anordning för segelbåt
EP1655220A2 (fr) * 2004-11-03 2006-05-10 De Koning, Bernardus Dispositif de réduction de la vitesse angulaire d'un bôme d'une grande-voile lors de l'empannage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998014245A1 (fr) * 1996-09-30 1998-04-09 Räsontec N.V. Appareil de fitness
JP2000179605A (ja) * 1998-12-15 2000-06-27 Toyota Motor Corp ダンパ装置
SE525403C2 (sv) * 2004-03-15 2005-02-15 Lars Samuelsson Anordning för segelbåt
EP1655220A2 (fr) * 2004-11-03 2006-05-10 De Koning, Bernardus Dispositif de réduction de la vitesse angulaire d'un bôme d'une grande-voile lors de l'empannage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE2230326A1 (en) * 2022-10-08 2024-03-12 Thorleif Thorlin A mast mounted rope device for boom control
SE545905C2 (en) * 2022-10-08 2024-03-12 Thorleif Thorlin A mast mounted rope device for boom control

Also Published As

Publication number Publication date
SE532805C2 (sv) 2010-04-13
SE0700464L (sv) 2007-10-28
EP2010428A1 (fr) 2009-01-07

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