EP2988999B1 - A furler device for stayed sails and the like - Google Patents
A furler device for stayed sails and the like Download PDFInfo
- Publication number
- EP2988999B1 EP2988999B1 EP14722363.0A EP14722363A EP2988999B1 EP 2988999 B1 EP2988999 B1 EP 2988999B1 EP 14722363 A EP14722363 A EP 14722363A EP 2988999 B1 EP2988999 B1 EP 2988999B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide
- furler
- swivel
- stay
- 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.)
- Active
Links
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000004753 textile Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- B63H9/1021—Reefing
- B63H9/1028—Reefing by furling around stays
Definitions
- the present invention relates to a furler device for stayed sails and the like.
- Known furler devices for sails may be divided into two main types.
- the first type includes furler devices which provide only two operating positions of the sail, namely completely furled and completely unfurled.
- the second type includes devices which allow the sail to be used in a partially furled state, thus enabling the active sail surface to be adjusted with a good degree of continuity.
- EP0541430A1 EP1378442A1 , FR2751296A1 , FR2792906A1 , US3872816A , US3980036A , US4034694A , US5878683A , US6098560A , US6318285B1 , US2005211149A1 , and WO9722515A1 .
- the advantages of the first type include, unquestionably, its lightness, due to some extent to the fact that these devices allow the use of textile stays made of anti-torsion structural cable.
- the first type of furler it is generally difficult or impossible to substitute furlable sails having different bending lengths on the same stay.
- the second type of furler allows relatively easy substitution of the sails as well as partial furling for the purpose of adjusting the sail surface, although this is generally achieved at the cost of increased weight, owing to the presence of profiled elements of aluminium or other composite materials, with bush and pin joints.
- the assembly comprises a furling drive element connected to the upper end of the wire, and the furling drive element extends through the hoisting element and is suitable to receive the hoisting sleeve.
- the furling-drive element is a single piece elongated rod having a longitudinal bore in which the wire is integrally fixed i.e. by screws and epoxy adhesive. For this reason, the install/replace operations of the wire are complicated and require long time.
- the fundamental problem of the present invention is that of providing a furler device for stayed sails whose structural and functional design is such that all the drawbacks of the aforementioned prior art can be overcome. This problem is resolved by the invention by means of a furler device made in accordance with the appended claim 1.
- a sailing boat indicated as a whole by 1, comprises a hull 2 of which only the bow section is shown, a mast 3 of which only the terminal head section is shown, and a furler device 4 for a sail 5, in this case a jib or other foresail of the stayed type.
- stayed sail denotes a sail which is attached, for example by bends or hanks, to a stay 10 extending between a deck plate 11 and a fastening to the mast 12.
- the stay 10 is of a textile type, made from an anti-torsion structural cable, for example one of the type manufactured and marketed by the present applicant under the trade name "cavo NO-torsion" (see, for example, http://www.armare.it/softriq/no-torsion.php).
- These cables constructed on the principle of single-thread winding from what are known as special fibres such as PBO, KevlarTM, or the like, have terminal thimbles 12a, b, and have the property of a degree of flexibility combined with a torque transmission capacity.
- a jib roller 13 of the drum type is interposed between the lower thimble 12a and the deck plate 11.
- the jib roller 13 may conveniently be of another type, for example a closed-circuit top-driven type (winder) or a motorized type, provided that it includes a part 13 rotatable with respect to the plate 11 to cause the stay 10 to rotate about its axis.
- This rotatable part is attached to a tack 14 of the sail 5 as well as to the stay 10.
- a second swivel is interposed between the upper thimble 12b and the attachment to the mast, allowing the stay 10 to rotate freely with respect to the mast 3.
- a guide 15 having a predominantly axial extension is fitted coaxially on to a portion of the stay 10 limited to the upper part of the stay, over a length of about 800 to 1500 mm, which is variable according to the length of the whole stay measured from the upper thimble 12b and according to the type of sails to be adapted.
- the guide 15 is torsionally rigid; that is to say it can transmit torque when rotated about its own axis. This is achieved by making the guide 15 from a suitable material, and/or by attaching the guide 15 to the stay 10, which is torsionally rigid and which therefore imparts torsional rigidity to the guide 15 which is fixed integrally in rotation to it.
- the guide 15 is provided with a seat (15a) for the thimble 12b in which this thimble is received with a positive connection which prevents its relative rotation.
- a first swivel 17 is mounted slidably on the stay 10; the first swivel 17 includes a first part 18 integral in rotation to the guide but slidable thereon, and a second part 19 rotationally supported by means of free-running bearings 20 on the first part 18.
- the first part 18 of the swivel comprises an obliquely cut orientation device 21 whose inclined sides 22 converge from a single vertex towards an axial groove 23.
- An identical groove 23 is formed in a low-friction sleeve 24 coupled coaxially inside the first part.
- the orientation device 21 is suitable to rotate the first swivel part 18 when it is fitted on to a tapered fitting 26 of the guide 15, by interaction between its sides 22 and an axial rib 27 formed longitudinally in relief along the outer shell of the guide 15, thus providing a guide having a grooved coupling between the first swivel 17 and the guide 15.
- the rib and the groove form means preventing rotation for torsional coupling between the guide 15 and the first swivel 17.
- the torsional coupling with a groove profile can be replaced by other couplings capable of transmitting torque while allowing the relative sliding of the first swivel 17 along the guide 15, for example profiled bar couplings.
- the second part 19 of the first swivel comprises pierced appendages 30 suitable to receive a line spliced to form a closed ring (loop) 31 with which the second part 19 is attached, in use, to a halyard 32.
- pierced appendages 33 and a respective loop 34 are provided on the first swivel part to secure a peak 35 of the sail 5.
- the remaining bending area of the sail can be attached removably to the stay 10 by means of hanks 36.
- the sail 5 is then hoisted by pulling on the halyard 32.
- the orientation device 21 is made to slide with its obliquely angled appendage behind one of its sides 22, thus rotating the first swivel part 19 about its own axis until the groove 23 is aligned with the rib 27 of the guide 15.
- the peak and clew of the sail 5 are thus constrained in rotation to the stay 10, allowing the sail to be furled around the stay.
- the first swivel 17 is slidable on the guide 15, the position of the first swivel along the guide can be varied without preventing or altering the tensioning of the stay.
- the sails in use can be exchanged for others having different bending lengths, or the halyard tension can be varied without changing the stay tension, thus increasing the possibilities of adjusting the sail. It is also possible to furl the sail only partially on the stay, in order to vary the sail surface of the boat.
- the invention achieves numerous advantages, including a remarkable lightness of the rigging and extended possibilities for the adjustment of the staysails.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ocean & Marine Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Wind Motors (AREA)
- Valve Device For Special Equipments (AREA)
- Organic Insulating Materials (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
- The present invention relates to a furler device for stayed sails and the like. Known furler devices for sails may be divided into two main types. The first type includes furler devices which provide only two operating positions of the sail, namely completely furled and completely unfurled. The second type includes devices which allow the sail to be used in a partially furled state, thus enabling the active sail surface to be adjusted with a good degree of continuity.
- Examples of these devices are described in
EP0541430A1 ,EP1378442A1 ,FR2751296A1 FR2792906A1 US3872816A ,US3980036A ,US4034694A ,US5878683A ,US6098560A ,US6318285B1 ,US2005211149A1 , andWO9722515A1 - Generally, it is only the devices of the second type that also allow the sail to be lowered (for replacement, for example) without also lowering the corresponding stay.
- Both aforementioned types of furler devices have advantages and disadvantages. The advantages of the first type include, unquestionably, its lightness, due to some extent to the fact that these devices allow the use of textile stays made of anti-torsion structural cable. However, with the first type of furler it is generally difficult or impossible to substitute furlable sails having different bending lengths on the same stay.
- On the other hand, the second type of furler allows relatively easy substitution of the sails as well as partial furling for the purpose of adjusting the sail surface, although this is generally achieved at the cost of increased weight, owing to the presence of profiled elements of aluminium or other composite materials, with bush and pin joints.
- Other examples are described in
US4267791A ,US5899163A ,US5014637A ,US3938460A andFR2441539A1 - Another example is described in
US3958523A , which is considered the closest prior art: this document discloses a sailboat headstay assembly comprising an elongated wire capable of transmitting torsional force, upper mounting means including a swivel unit for connecting an upper end of the wire to the mast, hoisting element, and drum rotatably mounted on hull and non-rotatably connected to a lower end of the wire for turning the wire itself about its longitudinal axis. - The assembly comprises a furling drive element connected to the upper end of the wire, and the furling drive element extends through the hoisting element and is suitable to receive the hoisting sleeve.
- In particular, the furling-drive element is a single piece elongated rod having a longitudinal bore in which the wire is integrally fixed i.e. by screws and epoxy adhesive. For this reason, the install/replace operations of the wire are complicated and require long time.
- The fundamental problem of the present invention is that of providing a furler device for stayed sails whose structural and functional design is such that all the drawbacks of the aforementioned prior art can be overcome. This problem is resolved by the invention by means of a furler device made in accordance with the appended claim 1.
- The features and advantages of the invention will be made clearer by the following detailed description of a preferred example of embodiment thereof, illustrated, for the purposes of guidance and in a non-limiting way, with reference to the attached drawings, in which:
-
Fig. 1 is a schematic perspective view of a sailing boat, shown only partially, equipped with a furler device according to the invention; -
Fig. 2 is a detail, on an enlarged scale, of the boat ofFigure 1 ; -
Figures 3 and 4 are perspective views on an enlarged scale of another detail of the boat ofFigure 1 , in two different operating conditions; -
Figures 5 and 6 are perspective views on a further enlarged scale of the detail ofFigures 3 and 4 , in two different operating conditions; -
Figures 7 and 8 are perspective views, in assembled and exploded form respectively, of the same detail as that ofFigures 3 and 4 . - In
Figures 1 and 2 , a sailing boat, indicated as a whole by 1, comprises ahull 2 of which only the bow section is shown, amast 3 of which only the terminal head section is shown, and a furler device 4 for a sail 5, in this case a jib or other foresail of the stayed type. In the following context, the term "stayed sail" denotes a sail which is attached, for example by bends or hanks, to astay 10 extending between adeck plate 11 and a fastening to themast 12. Thestay 10 is of a textile type, made from an anti-torsion structural cable, for example one of the type manufactured and marketed by the present applicant under the trade name "cavo NO-torsion" (see, for example, http://www.armare.it/softriq/no-torsion.php). These cables, constructed on the principle of single-thread winding from what are known as special fibres such as PBO, Kevlarâ„¢, or the like, haveterminal thimbles 12a, b, and have the property of a degree of flexibility combined with a torque transmission capacity. - A
jib roller 13 of the drum type is interposed between thelower thimble 12a and thedeck plate 11. Thejib roller 13 may conveniently be of another type, for example a closed-circuit top-driven type (winder) or a motorized type, provided that it includes apart 13 rotatable with respect to theplate 11 to cause thestay 10 to rotate about its axis. - This rotatable part is attached to a
tack 14 of the sail 5 as well as to thestay 10. - A second swivel is interposed between the
upper thimble 12b and the attachment to the mast, allowing thestay 10 to rotate freely with respect to themast 3. - A
guide 15 having a predominantly axial extension is fitted coaxially on to a portion of thestay 10 limited to the upper part of the stay, over a length of about 800 to 1500 mm, which is variable according to the length of the whole stay measured from theupper thimble 12b and according to the type of sails to be adapted. Theguide 15 is torsionally rigid; that is to say it can transmit torque when rotated about its own axis. This is achieved by making theguide 15 from a suitable material, and/or by attaching theguide 15 to thestay 10, which is torsionally rigid and which therefore imparts torsional rigidity to theguide 15 which is fixed integrally in
rotation to it. In order to increase this torsional rigidity, theguide 15 is provided with a seat (15a) for thethimble 12b in which this thimble is received with a positive connection which prevents its relative rotation. Afirst swivel 17 is mounted slidably on thestay 10; thefirst swivel 17 includes afirst part 18 integral in rotation to the guide but slidable thereon, and asecond part 19 rotationally supported by means of free-runningbearings 20 on thefirst part 18. Thefirst part 18 of the swivel comprises an obliquelycut orientation device 21 whoseinclined sides 22 converge from a single vertex towards anaxial groove 23. Anidentical groove 23 is formed in a low-friction sleeve 24 coupled coaxially inside the first part. Theorientation device 21 is suitable to rotate thefirst swivel part 18 when it is fitted on to atapered fitting 26 of theguide 15, by interaction between itssides 22 and anaxial rib 27 formed longitudinally in relief along the outer shell of theguide 15, thus providing a guide having a grooved coupling between thefirst swivel 17 and theguide 15. The rib and the groove form means preventing rotation for torsional coupling between theguide 15 and thefirst swivel 17. The torsional coupling with a groove profile can be replaced by other couplings capable of transmitting torque while allowing the relative sliding of thefirst swivel 17 along theguide 15, for example profiled bar couplings. Thesecond part 19 of the first swivel comprises piercedappendages 30 suitable to receive a line spliced to form a closed ring (loop) 31 with which thesecond part 19 is attached, in use, to ahalyard 32. In the same way, piercedappendages 33 and arespective loop 34 are provided on the first swivel part to secure apeak 35 of the sail 5. - The remaining bending area of the sail can be attached removably to the
stay 10 by means ofhanks 36. - To hoist the sail 5, it is simply necessary to lower the
first swivel 17 along thestay 10, attach the tack and peak, respectively, to thejib roller 13 and to thefirst part 18 of the first swivel, and hank (or otherwise bend) the sail to the stay. - The sail 5 is then hoisted by pulling on the
halyard 32. When the first swivel engages the tapered terminal fitting piece of theguide 15, theorientation device 21 is made to slide with its obliquely angled appendage behind one of itssides 22, thus rotating the firstswivel part 19 about its own axis until thegroove 23 is aligned with therib 27 of theguide 15. - The peak and clew of the sail 5 are thus constrained in rotation to the
stay 10, allowing the sail to be furled around the stay. However, it should be noted that, since thefirst swivel 17 is slidable on theguide 15, the position of the first swivel along the guide can be varied without preventing or altering the tensioning of the stay. Thus the sails in use can be exchanged for others having different bending lengths, or the halyard tension can be varied without changing the stay tension, thus increasing the possibilities of adjusting the sail. It is also possible to furl the sail only partially on the stay, in order to vary the sail surface of the boat. - Thus the invention achieves numerous advantages, including a remarkable lightness of the rigging and extended possibilities for the adjustment of the staysails.
Claims (9)
- A furler device (4) for stayed sails and the like, including:- a torsionally rigid guide (15) extending predominantly axially,- a first swivel (17), slidable on the guide (15), having a first part (18) integral in rotation to the guide (15) and a second part (19) which is freely movable with respect to the first part (18),- a stay (10) which supports the guide (15),- a furler (13) with a rotating part for rotating the guide (15) about its own axis in order to furl a sail (5) hoisted between said rotating part of the furler (13) and said first part (18) of the swivel (19) about said stay (10),the guide (15) extending only over a portion of the stay (10), at the opposite end to the furler (13), and the stay (10) being torsionally rigid and integral in rotation to the rotating part and to the guide (15), thus forming a torque transmission member between the rotating part of the furler (13) and the first part (18) of the swivel (17) when the swivel (17) is engaged along the guide (15),
said guide (15) comprising two shell portions which are fixed to each other and to the corresponding portion of stay (10) with which they are overlapped,
characterized in that said shell portions define a seat (15a) housing a terminal thimble (12b) of the stay (10), said thimble (12b) being accommodated in said seat (15a) with an anti-rotation coupling. - A furler device according to Claim 1, wherein the stay (10) is flexible, at least in its part located outside the guide (15).
- A furler device according to Claim 2, wherein the stay (10) is made of textile material, in the form of an anti-torsion structural cable.
- A furler device according to any one or more of the preceding claims, wherein the guide (15) is fixed to the stay (10) on the outside of the latter.
- A furler device according to any one or more of the preceding claims, wherein a second swivel is mounted on the end of the stay (10) opposite the furler (13).
- A furler device according to any one or more of the preceding claims, wherein an orientation device (21) is provided between the guide (15) and the first part (18) of the swivel (17), this orientation device (21) being adapted to align respective means preventing rotation (23, 27) for torsional coupling between the swivel (17) and the guide (15) during the fitting of the first swivel (17) on to the guide (15).
- A furler device according to Claim6, wherein the torsional coupling means preventing rotation (23, 27) are of the grooved coupling type.
- A furler device according to Claim 7, wherein the orientation device (21) comprises at least one longitudinal rib (27) on the guide (15), this rib (27) also forming the torsional coupling means, and at least one stop with an inclined profile on the swivel (17) to orientate the swivel (17) so that a groove (23) on the swivel (17) engages with the corresponding rib (27) of the guide (15) during the fitting of the first swivel (17) on to the guide (15).
- A furler device according to any one or more of the preceding claims, wherein the first swivel (17) comprises pairs of pierced appendages (30, 33) each suitable to receive a respective spliced rope in the form of a closed loop (31, 34) for fastening the first swivel (17) to a sail halyard (32) and/or peak (35) respectively.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000111A ITPD20130111A1 (en) | 2013-04-24 | 2013-04-24 | REWINDING DEVICE FOR LAMINATED AND SIMILAR SAILS |
PCT/IB2014/060753 WO2014174408A1 (en) | 2013-04-24 | 2014-04-16 | A furler device for stayed sails and the like |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2988999A1 EP2988999A1 (en) | 2016-03-02 |
EP2988999B1 true EP2988999B1 (en) | 2019-01-09 |
Family
ID=48703712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14722363.0A Active EP2988999B1 (en) | 2013-04-24 | 2014-04-16 | A furler device for stayed sails and the like |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2988999B1 (en) |
DK (1) | DK2988999T3 (en) |
IT (1) | ITPD20130111A1 (en) |
WO (1) | WO2014174408A1 (en) |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3611969A (en) * | 1969-06-23 | 1971-10-12 | Frederick E Hood | Jib-furling stay |
US3851610A (en) * | 1973-10-10 | 1974-12-03 | Safe Flight Instrument | Device for selectively preventing rotation of the upper end of a reefed sail and particularly a head sail such as a jib |
US3938460A (en) * | 1974-03-04 | 1976-02-17 | Hood Sailmakers, Inc. | Sail-raising system |
US3958523A (en) * | 1975-05-30 | 1976-05-25 | Tracy Holmes Corporation | Sail hoisting, supporting and furling apparatus |
US4080917A (en) * | 1977-05-02 | 1978-03-28 | Coast Catamaran Corporation | Roller furling mechanism |
US4248281A (en) * | 1979-06-18 | 1981-02-03 | Hood Enterprises, Inc. | Roll-reefing jib sail |
US4376417A (en) * | 1979-02-21 | 1983-03-15 | Hyde Products, Inc. | Forestay connector |
US4723499A (en) * | 1985-08-19 | 1988-02-09 | Bernard Furgang | Furling system for sailboats |
US6796257B1 (en) * | 2002-01-18 | 2004-09-28 | Solution Inc. | Zero moment furling swivel |
US6895882B1 (en) * | 2004-03-03 | 2005-05-24 | Cruising Design, Inc. | Light-weight code-zero headsail system |
US20080148556A1 (en) * | 2006-12-21 | 2008-06-26 | Karver | Device for the connection/disconnection of two elements from a relative axial movement between these two elements |
US9027493B2 (en) * | 2012-08-31 | 2015-05-12 | Wichard Inc. | Sail bearing |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3872816A (en) | 1973-07-05 | 1975-03-25 | Edmund A Cutts | Rotatable stay for sail furling gear |
US4034694A (en) | 1975-09-05 | 1977-07-12 | Newton Bradford Dismukes | Jib furler |
US3980036A (en) | 1976-03-08 | 1976-09-14 | Crall Donald H | Roller furling assembly |
FR2432432A1 (en) * | 1978-08-04 | 1980-02-29 | Ingouf Pierre | IMPROVEMENT IN FOCS WINDING SYSTEMS |
FR2441539A1 (en) * | 1978-11-16 | 1980-06-13 | Pollet Jacques | Mast for rapidly furling and unfurling boat sails - fore stay has tubular mast giving remote single handed, sail operation |
US5014637A (en) * | 1986-07-16 | 1991-05-14 | Stevenson William H Iv | Roller reefing system for sails and the like |
FR2683501B1 (en) | 1991-11-07 | 1995-03-10 | Proengin | VEHICLE-REDUCING VEHICLE WITH SWIVEL LOCKABLE ON THE STAY. |
WO1997022515A1 (en) | 1995-12-18 | 1997-06-26 | Robert Geoffrey Graham | Improvements in and relating to sail reefing apparatus |
FR2751296B1 (en) | 1996-07-18 | 1999-12-24 | Selden Mast Ab | ARRANGEMENT FOR A SAILING BOAT HAVING A TILTING SYSTEM |
US5878683A (en) | 1997-09-10 | 1999-03-09 | Pompanette, Inc. | Drive member and line guide for a roller furler |
US6098560A (en) | 1997-09-10 | 2000-08-08 | Pompanette, Inc. | Roller furling apparatus |
US5899163A (en) * | 1997-09-10 | 1999-05-04 | Pompanette, Inc. | Roller furling apparatus |
FR2792906B1 (en) | 1999-04-28 | 2001-07-13 | Profurl | VEHICLE SPLITTER / REDUCER WITH SUSPENDED REEL TUBE |
US6318285B1 (en) | 2000-09-19 | 2001-11-20 | Harken, Inc. | Furling sail system |
FR2841872B1 (en) | 2002-07-04 | 2004-09-17 | Fabrication D Accastillage Nor | SHIP SAIL STORER |
ITMI20040589A1 (en) | 2004-03-25 | 2004-06-25 | Renzo Greghi | SAIL WINDING DEVICE |
-
2013
- 2013-04-24 IT IT000111A patent/ITPD20130111A1/en unknown
-
2014
- 2014-04-16 DK DK14722363.0T patent/DK2988999T3/en active
- 2014-04-16 EP EP14722363.0A patent/EP2988999B1/en active Active
- 2014-04-16 WO PCT/IB2014/060753 patent/WO2014174408A1/en active Application Filing
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3611969A (en) * | 1969-06-23 | 1971-10-12 | Frederick E Hood | Jib-furling stay |
US3851610A (en) * | 1973-10-10 | 1974-12-03 | Safe Flight Instrument | Device for selectively preventing rotation of the upper end of a reefed sail and particularly a head sail such as a jib |
US3938460A (en) * | 1974-03-04 | 1976-02-17 | Hood Sailmakers, Inc. | Sail-raising system |
US3958523A (en) * | 1975-05-30 | 1976-05-25 | Tracy Holmes Corporation | Sail hoisting, supporting and furling apparatus |
US4080917A (en) * | 1977-05-02 | 1978-03-28 | Coast Catamaran Corporation | Roller furling mechanism |
US4376417A (en) * | 1979-02-21 | 1983-03-15 | Hyde Products, Inc. | Forestay connector |
US4248281A (en) * | 1979-06-18 | 1981-02-03 | Hood Enterprises, Inc. | Roll-reefing jib sail |
US4723499A (en) * | 1985-08-19 | 1988-02-09 | Bernard Furgang | Furling system for sailboats |
US6796257B1 (en) * | 2002-01-18 | 2004-09-28 | Solution Inc. | Zero moment furling swivel |
US6895882B1 (en) * | 2004-03-03 | 2005-05-24 | Cruising Design, Inc. | Light-weight code-zero headsail system |
US20080148556A1 (en) * | 2006-12-21 | 2008-06-26 | Karver | Device for the connection/disconnection of two elements from a relative axial movement between these two elements |
US9027493B2 (en) * | 2012-08-31 | 2015-05-12 | Wichard Inc. | Sail bearing |
Also Published As
Publication number | Publication date |
---|---|
DK2988999T3 (en) | 2019-04-08 |
EP2988999A1 (en) | 2016-03-02 |
WO2014174408A1 (en) | 2014-10-30 |
ITPD20130111A1 (en) | 2014-10-25 |
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