EP0130987A1 - Sloop rigged yacht board. - Google Patents

Sloop rigged yacht board.

Info

Publication number
EP0130987A1
EP0130987A1 EP83902235A EP83902235A EP0130987A1 EP 0130987 A1 EP0130987 A1 EP 0130987A1 EP 83902235 A EP83902235 A EP 83902235A EP 83902235 A EP83902235 A EP 83902235A EP 0130987 A1 EP0130987 A1 EP 0130987A1
Authority
EP
European Patent Office
Prior art keywords
mast
sail
boom
jib
boom members
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
EP83902235A
Other languages
German (de)
French (fr)
Other versions
EP0130987B1 (en
EP0130987A4 (en
Inventor
Christopher Robert Rutson
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.)
SURFERS PARADISE TRAVEL Pty Ltd
Original Assignee
Individual
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 AU91424/82A external-priority patent/AU542147B2/en
Application filed by Individual filed Critical Individual
Publication of EP0130987A1 publication Critical patent/EP0130987A1/en
Publication of EP0130987A4 publication Critical patent/EP0130987A4/en
Priority to ES8701911A priority Critical patent/ES2007626A6/en
Application granted granted Critical
Publication of EP0130987B1 publication Critical patent/EP0130987B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
    • B63H8/40—Arrangements for improving or maintaining the aerodynamic profile of sails, e.g. cambers, battens or foil profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
    • B63H8/20—Rigging arrangements involving masts, e.g. for windsurfing
    • B63H8/23—Rigging arrangements involving masts, e.g. for windsurfing for tensioning or trimming the clew of the sail, e.g. outhaul trimmers

Definitions

  • This invention relates to certain improvements in the sail plan and rigging of wind propelled apparatus such as surfboards, sail-boards, small yachts, canoes, boats, sail-boats, multi-hull boats, ice-boats, skateboards, sleds, and wind propelled land vehicles of the type that use sail attachments masts and rigging that are dependant upon a pair of boom members laterally disposed and accurately connected athwart said mast and securing a main-sail taut therebetween.
  • wind propelled apparatus such as surfboards, sail-boards, small yachts, canoes, boats, sail-boats, multi-hull boats, ice-boats, skateboards, sleds, and wind propelled land vehicles of the type that use sail attachments masts and rigging that are dependant upon a pair of boom members laterally disposed and accurately connected athwart said mast and securing a main-sail taut therebetween.
  • the object of this invention to improve the existing mainsail only type designs so that it is possible to obtain similar benefits in performance to that of the sloop-rigged yacht designs. This will result in the apparatus being able to point higher toward the direction from which the wind is coming from.
  • the aerodynamic slot between the two sails improves air flow, reduces turbulance and drag, and lowers the stalling point of the main-sail.
  • the jib-sail has less turbulance at its luff than the main-sail and takes advantage of the upwash of air flowing past the main-sail to produce added driving force which is more forward and less sideways than the main-sail.
  • the adjustable stays, shrouds, travellers, outhauls and sheets enable more effective control of forestay tension, mast bend and sail shape, while the height of the connection point between the forestay and the mast may be altered to form a fractional rig.
  • this invention adds the existing main-sail only type of apparatus.
  • This invention adds the following improvements as described herewith and including jib-sail, extended booms forward of the said mast, boom connectors, fore and back stays, diamond shrouds, travellers, spreaders, sheets, outhauls, blocks, cleats, etc, as necessary to produce windward performance similar to that of a sloop rigged yacht, while not limiting its performance offwind or downwind.
  • Figure 1. is a vertical section of the complete rig.
  • Figure 2. is a plan of the complete rig.
  • Figure 3 is a plan of the Twin-Booms and Spreaders.
  • Figure 4. is a vertical section of the Jib-sail and Main-sail.
  • Figure 5. is a vertical section of the Mast and Rigging.
  • the apparatus has a body adapted to support a user, in this case it is in the form of a fibreglass surfboard together with mast, mast-foot and fitting, twin boom members, and Main-sail and attachments.
  • the board (1) is provided with a removable swing keel (2) rudder fins (3) foot straps (4) mast step (5) bow (6) and stern (7) .
  • the mast fitting (8) is connected to the mast step (5) by a flexible joint (9) in the form of a polyester lanyard and retainer.
  • a mast (10) of aluminium alloy circular section tubeing is attached to the mast fitting (8) by means of suitable pop rivets (11), it is slotted lengthwise on the rearmost side to accept the main-sail nylon slides (13), hounds (14) are pop riveted top and bottom facing to the rear to accept the backstays (15 & 16) with single angled tangs (17) located at these points also on the sides to accept the shrouds (18) and vernier adjusters (19).
  • the stainless steel loopslides with stops on "T" track slides which serve as jib-travellers.
  • the spreaders (25) are also constructed of aluminium alloy tubeing with circular section and welded together then pop riveted to the boom members.
  • Small chainplates are attached (26) for connection of the shrouds, and both the shrouds and the fore and back stays are stainless steel wire with swaged thimbles (27) and shackles (28) being the means of attachment between the mast, booms and sails.
  • the boom spreader is allowed to rotate about the mast but may be secured partially with a shock cord or bearing surface, (53) .
  • Boom sleeves (54) The main-sail (29) is fitted with nylon sail slides along its luff (30) and is threaded onto the mast via the slot entry points near the centre of the mast from the centre outwards both up and down. It is tensioned with halyards (31) and cleats (32) at either end and by the main outhaul sheet (33) on the boom. Reefing points are fitted (43) .
  • the jib-sail (34) is fitted along its luff (35) with piston hanks
  • the sails are dacron fitted with batten pockets and battens (44) eyelets with reinforced sections (45) sail number (46) transparent windows (47) wind telltail (48) .
  • a rig uphaul sheet is provided (50) .
  • backstays To enable the backstays to cleat they are brought through the outhaul rollers then joined together and attached to a stiitable polyester sheet which then leads to the backstay jamb cleat (51) which is situated on the boom opposite the main sheet outhaul jamb cleat (52) .
  • variable adjustments of stays, shrouds, halyards, and sheets produce a great number of different sail shapes to suit the user dependant upon wind and sea conditions.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Jib Cranes (AREA)
  • Toys (AREA)
  • Tents Or Canopies (AREA)

Abstract

Une planche à voile ou autre petite embarcation est équipée d'un mât (10) relié par une articulation flexible (9) à la coque (1). Ce mât porte une grand-voile (29) et un foc (34). Ces voiles sont tendues par un gréement au mât et aux deux bômes (21 et 22). Un gréement supplémentaire comporte des drailles avant et arrière (37, 38 et 15, 16) et des haubans (18) entre la tête de mât et les bômes. Une barre d'écartement (25) sépare les bômes de façon rigide. Cette barre d'écartement peut pivoter autour du màt mais peut être partiellement fixée sur lui par une corde de rappel. Des coulisses en nylon (13) sont adjointes à la grand-voile et glissent dans des gorges pratiquées dans le mât, alors que le foc est attaché aux drailles avant par des anneaux (36).A windsurfing board or other small boat is equipped with a mast (10) connected by a flexible articulation (9) to the hull (1). This mast carries a mainsail (29) and a jib (34). These sails are stretched by a rigging on the mast and the two booms (21 and 22). An additional rig includes front and rear drailles (37, 38 and 15, 16) and guy lines (18) between the masthead and the boom. A spreader bar (25) rigidly separates the booms. This spreader bar can pivot around the mast but can be partially fixed on it by a rope. Nylon slides (13) are added to the mainsail and slide in grooves made in the mast, while the jib is attached to the front rails by rings (36).

Description

"SLOOP RIGGED YACHI BOARD"
*DESCRIPTION* This invention relates to certain improvements in the sail plan and rigging of wind propelled aparatus such as surfboards, sail-boards, small yachts, canoes, boats, sail-boats, multi-hull boats, ice-boats, skateboards, sleds, and wind propelled land vehicles of the type that use sail attachments masts and rigging that are dependant upon a pair of boom members laterally disposed and accurately connected athwart said mast and securing a main-sail taut therebetween.
The above designs use only a main-sail, however it has been found in practice by yachts and similar sailing craft that the sailing characteristics of these craft are improved with the addition of a Jib- sail or fore-sail. With the addition of this extra sail in front of the main-sail the sail plan of a "sloop" is produced and the pointing ability of the craft is improved together with the overall aerodynamic efficiency of the sails.
It is the object of this invention to improve the existing mainsail only type designs so that it is possible to obtain similar benefits in performance to that of the sloop-rigged yacht designs. This will result in the apparatus being able to point higher toward the direction from which the wind is coming from. The aerodynamic slot between the two sails improves air flow, reduces turbulance and drag, and lowers the stalling point of the main-sail. The jib-sail has less turbulance at its luff than the main-sail and takes advantage of the upwash of air flowing past the main-sail to produce added driving force which is more forward and less sideways than the main-sail. The adjustable stays, shrouds, travellers, outhauls and sheets enable more effective control of forestay tension, mast bend and sail shape, while the height of the connection point between the forestay and the mast may be altered to form a fractional rig.
According to this invention there is provided the existing main-sail only type of apparatus. This invention adds the following improvements as described herewith and including jib-sail, extended booms forward of the said mast, boom connectors, fore and back stays, diamond shrouds, travellers, spreaders, sheets, outhauls, blocks, cleats, etc, as necessary to produce windward performance similar to that of a sloop rigged yacht, while not limiting its performance offwind or downwind.
In operation the use is similar to the existing apparatus, however additional skill is required to tune the adjustments of the jib-sail and the main-sail in tandum to obtain optimum results dependant upon wind strength and direction. The basic construction is similar to existing apparatus and the further details constitute the improvements.
The particular embodiment of the invention will now be described with reference to the accompanying drawings in which:-
Figure 1. is a vertical section of the complete rig. Figure 2. is a plan of the complete rig.
Figure 3. is a plan of the Twin-Booms and Spreaders.
Figure 4. is a vertical section of the Jib-sail and Main-sail.
Figure 5. is a vertical section of the Mast and Rigging.
The apparatus has a body adapted to support a user, in this case it is in the form of a fibreglass surfboard together with mast, mast-foot and fitting, twin boom members, and Main-sail and attachments.
The board (1) is provided with a removable swing keel (2) rudder fins (3) foot straps (4) mast step (5) bow (6) and stern (7) . The mast fitting (8) is connected to the mast step (5) by a flexible joint (9) in the form of a polyester lanyard and retainer.
So far the construction is similar to sail-boards previously in use, and the further details constitute the improvements.
A mast (10) of aluminium alloy circular section tubeing is attached to the mast fitting (8) by means of suitable pop rivets (11), it is slotted lengthwise on the rearmost side to accept the main-sail nylon slides (13), hounds (14) are pop riveted top and bottom facing to the rear to accept the backstays (15 & 16) with single angled tangs (17) located at these points also on the sides to accept the shrouds (18) and vernier adjusters (19). At the top and bottom ends and to the front of the mast are attached by pop rivets the stainless steel loopslides with stops on "T" track slides which serve as jib-travellers.
Two boom members (21 & 22) of aluminium alloy circular section tubeing are connected at either end by "U" shaped connectors of moulded
P.V.C. with one roller block for the jib-sail outhaul (23) and three roller blocks on the rear connector for the main-sail outhaul and two backstays (24). These connectors are pop riveted to the booms and the jamb cleats at median points also fitted. Attachment points for the user are in the form of a foam covering. (49) .
The spreaders (25) are also constructed of aluminium alloy tubeing with circular section and welded together then pop riveted to the boom members. Small chainplates are attached (26) for connection of the shrouds, and both the shrouds and the fore and back stays are stainless steel wire with swaged thimbles (27) and shackles (28) being the means of attachment between the mast, booms and sails. The boom spreader is allowed to rotate about the mast but may be secured partially with a shock cord or bearing surface, (53) . Boom sleeves (54) . The main-sail (29) is fitted with nylon sail slides along its luff (30) and is threaded onto the mast via the slot entry points near the centre of the mast from the centre outwards both up and down. It is tensioned with halyards (31) and cleats (32) at either end and by the main outhaul sheet (33) on the boom. Reefing points are fitted (43) .
The jib-sail (34) is fitted along its luff (35) with piston hanks
(36) for easy attachment to the forestays (37 & 38) halyards (39) and cleats (40) jib^sheet (41) and cleats (42) and reefing points (43) .
The sails are dacron fitted with batten pockets and battens (44) eyelets with reinforced sections (45) sail number (46) transparent windows (47) wind telltail (48) . A rig uphaul sheet is provided (50) .
To enable the backstays to cleat they are brought through the outhaul rollers then joined together and attached to a stiitable polyester sheet which then leads to the backstay jamb cleat (51) which is situated on the boom opposite the main sheet outhaul jamb cleat (52) .
The variable adjustments of stays, shrouds, halyards, and sheets produce a great number of different sail shapes to suit the user dependant upon wind and sea conditions.
By constructing the apparatus in the manner set forth the characteristics of a sloop rigged sailing apparatus are obtained, this produces a more efficient sail plan than that of previous designs in this field that use twin-boom members.

Claims

THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS.
1. A wind propelled apparatus comprising a body adapted to support a user while being propelled by wind, a mast, or masts, pivotably coupled to the body by means of a joint extending between the mast and the body and having a plurality of axies of rotation, a pair of boom members laterally disposed and accurately connected athwart the said mast, a main-sail and means of extending the sail laterally from the mast and securing the said sail taut between the boom members, and particularly characterised by improvements in the form of a Jib-sail, a pair of boom members extended forward of the mast, two "U" shaped boom connectors - one single and one triple roller, fore and back stays, shrouds, travellers, spreaders, sheets, outhauls, blocks and cleats, as described and necessary for the adjustment of the improvements.
2. The apparatus of claim 1 wherein the said means for supporting the Jib-sail comprises a pair of boom members laterally disposed and accurately connected athwart by means of a spreader system and extending forward of the said mast, connected at their outer ends by "U" shaped connectors, and securing the said Jib-sail laterally taut therebetween, the complete sail system having a plurality of axies of rotation.
3. The apparatus of claims 1 & 2 including means adapted to enable the said user to manipulate the said sails by attachment of holding points to either side thereof.
4. The apparatus of claims 1 to 3 including "U" shaped boom connector with triple roller fitting.
5. The apparatus of claims 1 to 4 including spreaders abeam the mast and encompassing the mast section, separating the two boom members equally on either side of the mast and being accurately connected to each boom member.
6. The apparatus of claims 1 to 5 including upper and lower forestays.
7. The apparatus of claims 1 to 6 including upper and lower backstays.
8. The apparatus of claims 1 to 7 including shrouds.
9. The apparatus of claims 1 to 8 adapted as a sail-board.
10. Sloop rigged yacht-board apparatus substantially as hereinbefore described with reference to the accompanying drawings.
EP83902235A 1982-07-28 1983-07-25 Sloop rigged yacht board Expired EP0130987B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES8701911A ES2007626A6 (en) 1983-07-25 1987-06-30 Rigging arrangement for sailing vessel

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AUPF507782 1982-07-28
AU5077/82 1982-07-28
AU6323/82 1982-10-13
AUPF632382 1982-10-13
AU91424/82A AU542147B2 (en) 1982-07-28 1982-12-10 Sail board with jib sail
AU91424/82 1982-12-10

Publications (3)

Publication Number Publication Date
EP0130987A1 true EP0130987A1 (en) 1985-01-16
EP0130987A4 EP0130987A4 (en) 1985-04-03
EP0130987B1 EP0130987B1 (en) 1988-10-26

Family

ID=27156836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83902235A Expired EP0130987B1 (en) 1982-07-28 1983-07-25 Sloop rigged yacht board

Country Status (5)

Country Link
EP (1) EP0130987B1 (en)
JP (1) JPS59501354A (en)
DE (1) DE3378309D1 (en)
NZ (1) NZ204922A (en)
WO (1) WO1984000529A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233911A1 (en) * 1985-08-19 1987-09-02 HAMUNEN, Isto Sail board arrangement
FR2590228A1 (en) * 1985-11-15 1987-05-22 Ducrocq Louis New type of supporting device for a sail
US7673576B2 (en) * 2006-06-21 2010-03-09 Miller James W Aerodynamic lift enhancement gate valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2738469A1 (en) * 1977-08-26 1979-03-01 Helge Dr Med Lohfert Sail for wind-surfer - has foresail supported between extended grip bars which are joined by cross-piece pivoted to mast
EP0030495A2 (en) * 1979-11-30 1981-06-17 Jean-Paul Dudouyt Rig for a skiff or a wind-surf board
DE8116030U1 (en) * 1981-05-29 1981-11-05 Brodnig, Gerald, Dipl.-Ing., Klagenfurt Sailing vehicle, in particular sailing board
DE3024954A1 (en) * 1980-07-02 1982-01-28 Dirk Dipl.-Ing. Althaus Single sail rig for wind-surfer - with split mast and split boom forming frame about sail

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1188077A (en) * 1957-12-02 1959-09-18 Sailboat with swivel canopy in all directions
DE2712018A1 (en) * 1977-03-18 1978-09-21 Siegfried Blech Strengthened rig for wind-surfer - has wire stay extending from bottom of boom to mast base
FR2462337A1 (en) * 1979-07-27 1981-02-13 Baulard Gerard SAILING EQUIPMENT WITH AUTOMATIC COUNTER-GITE
DE3046231A1 (en) * 1980-12-08 1982-07-15 Hannes 8100 Garmisch-Partenkirchen Marker RIGG FOR A SAILING BOARD
DE3121402A1 (en) * 1981-05-29 1982-12-16 Gerald Dipl.-Ing. Klagenfurt Brodnig Sailing apparatus, in particular sailboard

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2738469A1 (en) * 1977-08-26 1979-03-01 Helge Dr Med Lohfert Sail for wind-surfer - has foresail supported between extended grip bars which are joined by cross-piece pivoted to mast
EP0030495A2 (en) * 1979-11-30 1981-06-17 Jean-Paul Dudouyt Rig for a skiff or a wind-surf board
DE3024954A1 (en) * 1980-07-02 1982-01-28 Dirk Dipl.-Ing. Althaus Single sail rig for wind-surfer - with split mast and split boom forming frame about sail
DE8116030U1 (en) * 1981-05-29 1981-11-05 Brodnig, Gerald, Dipl.-Ing., Klagenfurt Sailing vehicle, in particular sailing board

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8400529A1 *

Also Published As

Publication number Publication date
JPS59501354A (en) 1984-08-02
EP0130987B1 (en) 1988-10-26
WO1984000529A1 (en) 1984-02-16
NZ204922A (en) 1985-05-31
DE3378309D1 (en) 1988-12-01
EP0130987A4 (en) 1985-04-03

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