EP0076878A2 - Dispositif pour emmagasiner et pour enrouler une voile - Google Patents

Dispositif pour emmagasiner et pour enrouler une voile Download PDF

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Publication number
EP0076878A2
EP0076878A2 EP81110413A EP81110413A EP0076878A2 EP 0076878 A2 EP0076878 A2 EP 0076878A2 EP 81110413 A EP81110413 A EP 81110413A EP 81110413 A EP81110413 A EP 81110413A EP 0076878 A2 EP0076878 A2 EP 0076878A2
Authority
EP
European Patent Office
Prior art keywords
sail
wind
track
halyard
mast
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
EP81110413A
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German (de)
English (en)
Other versions
EP0076878A3 (en
EP0076878B1 (fr
Inventor
Carl Joseph Michael Hutton
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0076878A2 publication Critical patent/EP0076878A2/fr
Publication of EP0076878A3 publication Critical patent/EP0076878A3/en
Application granted granted Critical
Publication of EP0076878B1 publication Critical patent/EP0076878B1/fr
Expired legal-status Critical Current

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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
    • B63H9/1035—Reefing by furling around or inside the mast

Definitions

  • the present invention relates to a reefing device for reefing and storing a sail by winding the sail inside a mast.
  • Australian Patent Specification 512,289 discloses a sail furling device wherein the sail is reefed by winding up the sail around a vertical rotational wind-up member held inside the mast. The vertical edge of the sail enters the mast through a longitudinal slot. This arrangement not only allows the sail to be conveniently furled but also facilitates reefing, i.e. reduction in sail area, by drawing into the mast a desired portion of the sail.
  • this arrangement suffers from a number of disadvantages. Firstly, it employs a two-part swivel, one part of which slides up the slot in the mast. Such swivel is liable to become jammed. Secondly, the wind-up member is itself held in tension by means of a turn-buckle take-up. This leads to wear on the top and bottom swivel mountings of the wind-up member and possible jamming. Also, only a single sail may be attached to the mast.
  • the present invention provides a reefing and storage device for a sail, which device comprises a hollow mast having an internal cavity and a longitudinal slot through which said sail may be drawn into said cavity for reefing and storage; a longitudinally extending wind-up member disposed within the internal cavity of said mast, the wind-up member being rotatably mounted with respect to the mast for enabling the sail to be wound around said wind-up member by rotation thereof and thereby to be drawn through said slot into said cavity; rotation means connected to said wind-up member for rotation thereof; a halyard to one end of which said sail may be attached; a guide mounted to an upper end of the wind-up member, said halyard running longitudinally of the wind-up member and around said guide; a first track being provided to said wind-up member and extending longitudinally thereof, said first track being adapted to slideably secure an edge of said sail for slideably connecting the sail to said wind-up member, whereby said sail may be raised by attaching the sail to said one end of the halyard and pulling on the other end of the hal
  • the guide is usually a pulley rotatably mounted on the top of the wind-up member, and serves to guide the halyard.
  • any conventional guide means may be used such as part-circular channels or tubes.
  • the wind-up member is rotatable about a tensioned fixed central wire or rod, thereby removing any need to tension the wind-up member itself.
  • the halyard runs up said first track and down a second track in the wind-up member.
  • the mast will have a cut-out near the gooseneck where the boom is attached to the mast, for use in attaching the sail to the halyard and to the first track, raising the halyard, and also for tensioning the sail.
  • each track will be the form of a longitudinal channel in the wind-up member.
  • At least the first channel may have re-entrant edges so as to retain a bolt rope forming part of the sail edge.
  • the first channel may also include a cut-out opposite the mast cut-out to enable the bolt rope to be threaded into the first channel.
  • the device may be operated as follows.
  • the top of the sail is passed through the cut-out and attached to one end of the halyard.
  • the sail edge is then attached to the first track and the sail is raised by pulling on the other end of the halyard, for example by drawing in a rope attached to the other end of the halyard.
  • the sail may be furled by rotating the wind-up member using a motor, wind-up handle or other winding mechanism.
  • the sail is furled from the cockpit using a remote pulley arrangement.
  • Figure 1 shows an extruded mast 1 having therein an intermediate wall 2 dividing the mast into a forward internal cavity 3 and a rearward internal cavity 4.
  • a vertically extending longitudinal wind-up member 27 is rotatably mounted in the rear cavity 4 for winding thereon a main sail 8.
  • the mast 1 is provided with a head fitting 38 and the lower end of the mast is attached to the deck or keel of the boat.
  • the rearward side of the rear cavity 4 is provided with a vertically extending slit 5 having rounded sail supporting edges through which the sail is drawn into the mast by rotation of the wind-up member 27.
  • a cut-out section 34 is provided at the base of the mast to allow the sail to be attached to the wind-up member and for enabling the sail to be hoisted.
  • Around the cut-out 34 is disposed a gooseneck 11 supporting the boom 42 by means of a double swivel 44.
  • the boom has an I beam track 12 along its length and an out haul line 33 running around pulleys is attached to rear corner 31 of the sail. Out haul pulleys 32 are provided to allow correct out and down pressure on the sail.
  • Boom topping lift 40 is attached between the rear end of boom 42 and head fitting 38.
  • a conventional jib halyard 39 runs through the front cavity 3.
  • the wind-up member 27 comprises a centre strut 45 having therein longitudinal channel-shaped tracks 6, 6' and 7, 7'. Each pair of tracks 6, 6' and 7, 7' is for mounting a respective sail. Thus, two sails may be attached to the wind-up member, as shown in Figure 8.
  • Each sail track 6,7 has a cut-out 29 at a lower end opposite mast cut-out 34 for threading bolt rope 46 attached to the front edge of the sail into the track.
  • the centre strut 45 also comprises a central longitudinal bore to allow the wind-up member to be rotated around a wire rope 20.
  • the wire rope 20 is secured to the head fitting 38 by means of a suadge eye, and is attached by means of a turnbuckle 36 to a lower casting 37 secured inside rear cavity 4.
  • the wind-up member is . rotatable about wire 20 by means of gear 9 bolted to the bottom of strut 45 and co-operating worm drive 10 have attached thereto handle 13.
  • the gear and worm drive may of course be replaced by an electric reversing motor for automatic furling operation.
  • the gear and worm drive are replaced by a remote pulley arrangement operable from the boat cockpit.
  • the pulley is mounted around the strut 45 opposite mast cut-out 34.
  • An endless loop of rope passes around the pulley, through the mast cut-out, and is led via idler pulleys to a winch adjacent the cockpit.
  • the wind-up member also comprises a top track casting 14 attached by means of bolts 48 to the top of strut 45.
  • a top track casting 14 mounted by means of bolts 48 to the top of strut 45.
  • the pulleys or sheaves 15a and 15b are rotatably mounted on shafts 16a and 16b.
  • Halyard 24 passes up sail track 6, around pulley 15a and down halyard track 6'.
  • the lower end of the wind-up member 27 is shown in Figures 4 and 6 (in Figure 6, the worm drive and handle are omitted for clarity).
  • the lower end of strut 45 is rotationally attached to lower casting 37 by means of top thrust washer 18 and bottom thrust washer 19 held between track retainer 21 and gear 9.
  • a block and tackle 23 is provided between track retainer 21 and a main sail halyard slide 22 attached to one end of halyard 24.
  • Lower casing 37 is held in place in the rear cavity 4 by means of screws 43.
  • Worm drive 10 is mounted on lower casing 37 by means of bearings 49.
  • a long threaded rod is attached to the slide 22, passes along the halyard track 6' and through holes in the track retainer 21 and gear 9 (or the pulley of a remote pulley arrangement).
  • a nut and washer are attached to the free end of the rod protruding beyond the gear 9. The halyard tension is adjusted by tightening the nut.
  • the gear and worm drive will be raised so as to be accessible through cut-out 34.
  • the bottom front corner 28 of the sail is held in position by an adjustable strop 41.
  • an adjustable strop 41 Alternatively, a further adjustable threaded rod arrangement such as the type just described may be used.
  • FIG. 1 the sail 8 is shown in the hoisted position with the top corner 26 of the sail attached to halyard 24.
  • the halyard 24 extends around pulley 15a and down inside halyard track 6' and terminates in halyard slide 22.
  • out haul line 33 is slackened and the wind-up member rotated by means of the handle 13 or by a winch adjacent the cockpit. Rotation of the wind-up member causes the sail 8 to be wrapped around the centre strut 45, thereby drawing the sail through the slit 5 and reducing its external area.
  • the sail may be unfurled by applying tension to line 33 and operating handle 13.
  • the sail may be lowered by attaching a further removable halyard to slide 22 through cut-out 34, and then releasing slide 22 from block and tackle 23 ( or from the tensioning rod). The sail may then be pulled downwards along sail track 6 and removed through cut-outs 29 and 34. At the same time, halyard 24 travels around pulley 15a and down sail slide 6 until top corner 26 of the sail comes to the cut-out 34, thereby allowing it to be removed from the halyard.
  • a second sail may be hoisted by means of the second pair of tracks 7, 7'.
  • This facility is useful in that it allows a further sail to be hoisted should the main sail rip in bad weather or jam in the track.
  • the use of wire 20 to mount the wind-up member helps prevent jamming of the wind-up member and removes the need to tension the member itself.
  • the wind-up member, wire and lower casting 37 may be readily removed through the end of the mast for servicing.
  • the overall arrangement is simple, convenient to use and not susceptible to jamming.

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  • 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)
  • Toys (AREA)
EP19810110413 1981-10-08 1981-12-14 Dispositif pour emmagasiner et pour enrouler une voile Expired EP0076878B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU1117/81 1981-10-08
AUPF111781 1981-10-08
AU1662/81 1981-11-23
AUPF166281 1981-11-23

Publications (3)

Publication Number Publication Date
EP0076878A2 true EP0076878A2 (fr) 1983-04-20
EP0076878A3 EP0076878A3 (en) 1983-11-09
EP0076878B1 EP0076878B1 (fr) 1986-07-23

Family

ID=25642498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810110413 Expired EP0076878B1 (fr) 1981-10-08 1981-12-14 Dispositif pour emmagasiner et pour enrouler une voile

Country Status (4)

Country Link
EP (1) EP0076878B1 (fr)
CA (1) CA1188568A (fr)
DE (1) DE3175000D1 (fr)
NZ (1) NZ199276A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577509A1 (fr) * 1985-02-21 1986-08-22 Nirvana Espar Systems Sa Mat de bateau a voile
EP0229675A3 (en) * 1986-01-17 1988-02-10 Mp-Sejl A/S Rig for a sail carrying boat
FR2607775A1 (fr) * 1986-12-03 1988-06-10 Maitres Flavien Dispositif enrouleur de voile
EP0318397A1 (fr) * 1987-11-26 1989-05-31 Jean-Michel Despres Perfectionnements apportés aux enrouleurs de voiles, notamment aux enrouleurs de grand-voiles
EP0331977A1 (fr) * 1988-02-29 1989-09-13 Luigi Greppi Mât pour voilier
GB2233948A (en) * 1989-07-21 1991-01-23 David Ross Clifford Berridge Cowling for stay and furled sail of sailing boat
US5687666A (en) * 1994-01-04 1997-11-18 Thoresen; Per-Gunnar Device for the mast of a sailboat
FR2832392A1 (fr) * 2001-11-21 2003-05-23 Jean Pierre Regnier Installation de stockage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980036A (en) * 1976-03-08 1976-09-14 Crall Donald H Roller furling assembly
GB1557359A (en) * 1977-02-22 1979-12-05 Jackson P T Sail furling
US4267790A (en) * 1978-04-20 1981-05-19 Hood Ralph S Sail furling and reefing apparatus
FR2474437A1 (fr) * 1980-01-28 1981-07-31 Rivet Pierre Andre Perfectionnements aux planches a voile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980036A (en) * 1976-03-08 1976-09-14 Crall Donald H Roller furling assembly
GB1557359A (en) * 1977-02-22 1979-12-05 Jackson P T Sail furling
US4267790A (en) * 1978-04-20 1981-05-19 Hood Ralph S Sail furling and reefing apparatus
FR2474437A1 (fr) * 1980-01-28 1981-07-31 Rivet Pierre Andre Perfectionnements aux planches a voile

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192223A1 (fr) * 1985-02-21 1986-08-27 Nirvana Espar Systems S.A. Mât de bateau à voile
FR2577509A1 (fr) * 1985-02-21 1986-08-22 Nirvana Espar Systems Sa Mat de bateau a voile
EP0229675A3 (en) * 1986-01-17 1988-02-10 Mp-Sejl A/S Rig for a sail carrying boat
FR2607775A1 (fr) * 1986-12-03 1988-06-10 Maitres Flavien Dispositif enrouleur de voile
US4949660A (en) * 1987-11-26 1990-08-21 Despries Jean Michel Sail winder control systems
EP0318397A1 (fr) * 1987-11-26 1989-05-31 Jean-Michel Despres Perfectionnements apportés aux enrouleurs de voiles, notamment aux enrouleurs de grand-voiles
FR2623772A1 (fr) * 1987-11-26 1989-06-02 Despres Jean Michel Perfectionnements apportes aux enrouleurs de voiles, notamment aux enrouleurs de grand-voiles
EP0331977A1 (fr) * 1988-02-29 1989-09-13 Luigi Greppi Mât pour voilier
US4972789A (en) * 1988-02-29 1990-11-27 Luigi Greppi Mast for sailboats
AU619254B2 (en) * 1988-02-29 1992-01-23 Luigi Greppi Mast for sailboats
GB2233948A (en) * 1989-07-21 1991-01-23 David Ross Clifford Berridge Cowling for stay and furled sail of sailing boat
US5687666A (en) * 1994-01-04 1997-11-18 Thoresen; Per-Gunnar Device for the mast of a sailboat
FR2832392A1 (fr) * 2001-11-21 2003-05-23 Jean Pierre Regnier Installation de stockage

Also Published As

Publication number Publication date
EP0076878A3 (en) 1983-11-09
DE3175000D1 (en) 1986-08-28
NZ199276A (en) 1984-11-09
EP0076878B1 (fr) 1986-07-23
CA1188568A (fr) 1985-06-11

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