WO2012076852A1 - Voile radiale à tube de guindant renforcé - Google Patents

Voile radiale à tube de guindant renforcé Download PDF

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Publication number
WO2012076852A1
WO2012076852A1 PCT/GB2011/001706 GB2011001706W WO2012076852A1 WO 2012076852 A1 WO2012076852 A1 WO 2012076852A1 GB 2011001706 W GB2011001706 W GB 2011001706W WO 2012076852 A1 WO2012076852 A1 WO 2012076852A1
Authority
WO
WIPO (PCT)
Prior art keywords
sail
luff
panels
mast
radial
Prior art date
Application number
PCT/GB2011/001706
Other languages
English (en)
Inventor
Michael Lennon
Ian Camero Macdiarmid
Original Assignee
International Laser Class Association
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 US29/380,679 external-priority patent/USD664493S1/en
Priority claimed from US12/964,156 external-priority patent/US8739721B2/en
Application filed by International Laser Class Association filed Critical International Laser Class Association
Priority to AU2011340315A priority Critical patent/AU2011340315B2/en
Priority to GB1309894.2A priority patent/GB2499751B/en
Publication of WO2012076852A1 publication Critical patent/WO2012076852A1/fr

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
    • B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels
    • 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
    • B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels
    • B63H9/067—Sails characterised by their construction or manufacturing process

Definitions

  • This patent application broadly relates to a sail intended to be used with a small sailing craft, and more specifically to a radial sail for use with an unstayed, non-braced mast.
  • Modern sailing craft are typically equipped with a triangular-shaped main sail connected along its luff to a mast.
  • a clew of the sail is attached to the aft end of a boom, the boom being held at its forward end to the mast.
  • Many small sailing- craft, such as dinghies, sailboards, and LaserTM class sailboats have neither jib sails nor mast stays.
  • the free-standing masts of these so-called cat-type rigs can therefore be subject to extreme forces. Even when initially setting the sail, the requisite preloading causes the mast to deflect considerably. Under way while sailing, the influence of the wind causes increases mast deflection, and the sail shape further changes unfavorably.
  • Cross-cut sails are ordinarily made from multiple overlapping fabric panels with the seams between each panel oriented in a fore and aft direction, parallel to each other and perpendicular to the leech. In most cases, the cross-cut panels are rectangular or almost rectangular in shape.
  • the fabric panels that make up radial-cut sails are usually oriented toward the corners of the sail. This means that the seams between panels are not parallel, but rather radiate out from the corners of the sail. This results in panels that are triangular or nearly triangular in shape.
  • radial-cut panels must typically be oriented such that the direction of highest stretching resistance extends in the same direction as the principal load lines of the sail. This manufacturing method entails significant waste and thus makes manufacture more costly. However, their strength and load-carrying ability mean that radial sails are generally thought to have superior performance over cross-cut sails.
  • the present invention is a generally triangular-shaped, radial-cut sail intended to be used with a small sailing craft such as a LaserTM Class sailboat.
  • a mast sleeve is arranged adjacent the luff area of the sail, extending from the head to the foot of the sail.
  • the mast sleeve is sized to accommodate a flexible, free-standing mast formed of two sections.
  • a luff patch is placed on the leading edge of the mast sleeve adjacent a point where the two mast sections meet.
  • the sail may be formed from two sections, each of radial-cut design. One section joins the other lower section at a longitudinal joint.
  • the longitudinal joint may have a forward end near the luff patch and/or other location where the mast sections meet.
  • Fig. 1 is a perspective view of a LaserTM Class sailboat with a rig that includes a radial-cut sail according to one embodiment.
  • Fig. 2 is a more detailed plan view of the sail of Fig. 1.
  • Fig. 3 illustrates a layout of various fabric panels that are sewn together to construct the sail.
  • Fig. 4 is a detailed cut-away view of the rig adjacent where two mast sections join.
  • Fig. 5 is a more detailed view of a batten pocket.
  • FIG. 1 shows a sailing rig 10 that has a sail 50 configured according to principles of one implementation of the invention as claimed herein.
  • the sail 50 is generally formed of a number of fabric panels 52 arranged in a bi-radial
  • the sail 50 is intended to be used with small sailing craft 20, particularly a LaserTM Class sailboat.
  • a Laser sailboat generally consists of a hull 20, a freestanding mast 30 and single boom 40.
  • the mast 30 of a Laser sailboat includes two mast sections that join at a mast collar (see Fig. 4)
  • the exact layout of the panels 52 that make up the sail 50 can be made specific to LaserTM Class characteristics, although the general design principles explained herein may well be applicable to other types or classes of sailing craft.
  • the sail 50 includes a generally hollow, cylindrical mast sleeve or "luff tube” part 54 that fits over the mast 30.
  • the sail 50 is also attached to the boom 40 at a clew 66.
  • Three batten pockets 70 provide support for tapered battens.
  • FIG. 2 is a more detailed view of the sail 50.
  • the uppermost point is known as the head 65, and the lower two corners of the sail 50 on either end of the foot 62 include a tack 67(the forward end) and the clew a (the rear or aft end).
  • the foot 62 of the sail 50 is bound at its lower edge by the tack 66 and clew 67.
  • the forward or leading edge of the sail 50 is the luff 60.
  • the aft or rear end of the sail is the leech 64.
  • a number of tell-tales 73 may be placed on various panels 52 of the sail.
  • a window 68 is placed in one of the panels 54, in this design it is placed in the panel adjacent the lowest panel, providing increased visibility for the skipper.
  • the tack 67 is integrally attached to the luff tube 54.
  • a Cunningham eyelet 72 may be placed on or in the tack 67, to enable further adjustment of the tension on sail 50.
  • the bi-radial construction of the sail arranges groups of panels 52 into two sections, an upper section 57 and a lower section 59.
  • the panels 52 generally have overlap with one or more adjacent panels and are sewn together to form seams such as an example seam 53 at such joints.
  • One particular longitudinal seam 75 runs more or less horizontally between the luff 60 and leach 64 in an area generally near the middle of mast 30.
  • FIG. 3 A more particular layout of each of the panels 52 after they are cut but before being sewn together to form sail 50 is shown in Fig. 3.
  • the exact panel 52 layout and shapes shown are specific to the characteristics of the Laser mast 30, being determined primarily by the expected load distribution of the specified 4.5 or Dacron TM sail cloth, with some consideration given to mast size and production costs. All panels, patches, and pieces shown in FIG. 3 are generally formed of 4.5 ounce (oz) DacronTM.
  • FIG. 3 More specifically shown in FIG. 3 is the division of the bi-radial sail 50 into the upper panels 52-1 that comprise upper section 57 and lower panels 52-2 that comprise lower section 59.
  • Upper section 57 generally include four such panels 52-1-1 , 52-1-2, ... 52-1- 4 of radial design extending from longitudinal joint 75 up to head 65.
  • Lower section 59 includes panels 52-2-1 , 52-2-2,...52-2-10. These panels generally extend from the clew 66 up towards the longitudinal joint 75 and over to the lower part of luff 60.
  • reinforcement patches (90, 91 ) (92, 93) (94, 95) at the corners, at head 65, tack 67 and clew 66 respectively. These are provided to increase the overall lifetime of the sail 50. More specifically, reinforcements 90, 91 are provided for head section 65.
  • a first type of reinforcement 90 includes four patches 90-1 , 90-2, 90-3, 90-4, each such reinforcing patch overlapping at least two of the main radial panels 52-1. Additional triangular pieces 91-1 and 91-2 are used on either side of the head 65 to reinforce the very topmost portion of sail 50.
  • Reinforcement pieces 91-1 and 91-2 may include two generally overlapping pieces. Layout of the assembled reinforcement patches 90 and pieces 91 that make up head 65 is best seen by referring back to FIG. 2.
  • reinforcement patches 92-1, 92-2 ... 92-4 are provided to the clew 66.
  • Each main clew reinforcement patch 92 overlaps at least two of the adjacent radial panels 52-2.
  • Smaller reinforcement pieces 93-1 , 93-2 are also provided to the clew 66.
  • Reinforcement is also provided for tack 67 in the same way, including main reinforcement patches 95 and associated smaller pieces 94-1 , 94-2, 94-3, 94-4.
  • An dditional reinforcement patch 86 on the forward edge of tack 67 further strengthens tack 67 where it meets luff tube 54.
  • FIG. 4 shows more detail of the luff tube joint patch 55.
  • luff tube 54 generally has a cylindrical shape sized to snugly fit over the mast 30.
  • the upper mast section 30-1 and lower mast section 30-2 joined together at fastening collar 30-3, to form the assembled mast 30.
  • Luff tube joint patch 55 is located in the general area 80 near where mast sections 30-1 , 30-2 meet. In the same general area 80 are found panels 52-1-4 from the upper section 57 and panel 52-2-4 , 52-2-5 and 52-2-6 from the lower section 57. Note that longitudinal seam 75 attaches to luff tube 54 in the area adjacent the top portion of patch 55, above a point where mast sections 30-1 and 30-2 join.
  • FIG. 5 is a more detailed view of one of the batten pockets 70.
  • the batten pockets 70 may take one of three positions along the leach 64 as shown in FIG. 1.
  • a batten pocket 70 generally consists of a main batten panel 96, a batten pocket reinforcement 97 and batten pocket end 98 piece.
  • a VELCRO® flap 101 may be placed around the end of the pocket to keep the batten 70 in place in the batten pocket.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Tents Or Canopies (AREA)
  • Toys (AREA)
  • Woven Fabrics (AREA)

Abstract

L'invention concerne une voile généralement triangulaire à coupe radiale destinée à être utilisée sur de petits bateaux à voiles, tels que ceux de la classe LaserTM.. Un fourreau ou tube de guindant est disposé ou formé jouxtant la zone du guindant de la voile, s'étendant de la tête au pied et dimensionné de façon à loger un mât souple formé de deux ou plusieurs sections de mât. Une pièce de tube de guindant est placée sur le bord directeur du fourreau de mât jouxtant un point où les sections du mât se rejoignent lorsque le gréement est assemblé.
PCT/GB2011/001706 2010-12-09 2011-12-09 Voile radiale à tube de guindant renforcé WO2012076852A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2011340315A AU2011340315B2 (en) 2010-12-09 2011-12-09 Radial sail with reinforced luff tube
GB1309894.2A GB2499751B (en) 2010-12-09 2011-12-09 Radial sail with reinforced luff tube

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US29/380,679 USD664493S1 (en) 2010-12-09 2010-12-09 Sail
US29/380,679 2010-12-09
US12/964,156 2010-12-09
US12/964,156 US8739721B2 (en) 2010-12-09 2010-12-09 Radial sail with reinforced luff tube

Publications (1)

Publication Number Publication Date
WO2012076852A1 true WO2012076852A1 (fr) 2012-06-14

Family

ID=45478344

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2011/001706 WO2012076852A1 (fr) 2010-12-09 2011-12-09 Voile radiale à tube de guindant renforcé

Country Status (3)

Country Link
AU (1) AU2011340315B2 (fr)
GB (1) GB2499751B (fr)
WO (1) WO2012076852A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3345043A1 (de) * 1983-12-13 1985-06-13 European Electric Motors Design and Engineering Anstalt, Vaduz In komplett mintiertem zustand transportierbares und abstellbares segelbrett
EP0224729A1 (fr) * 1985-11-27 1987-06-10 Bainbridge/Aquabatten, Inc. Voile
US4702190A (en) * 1984-12-14 1987-10-27 Sobstad Sailmakers, Inc. Structural sail with grid members

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2423251A1 (de) * 1974-05-14 1975-11-27 Immobilien Commerce Establishm Windsurfer
FR2581021A1 (fr) * 1985-04-26 1986-10-31 Chaussade Jean Protection de mat et fourreau de mat de planche a voile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3345043A1 (de) * 1983-12-13 1985-06-13 European Electric Motors Design and Engineering Anstalt, Vaduz In komplett mintiertem zustand transportierbares und abstellbares segelbrett
US4702190A (en) * 1984-12-14 1987-10-27 Sobstad Sailmakers, Inc. Structural sail with grid members
EP0224729A1 (fr) * 1985-11-27 1987-06-10 Bainbridge/Aquabatten, Inc. Voile

Also Published As

Publication number Publication date
GB2499751B (en) 2016-05-25
AU2011340315A1 (en) 2013-06-27
GB201309894D0 (en) 2013-07-17
AU2011340315B2 (en) 2016-12-22
GB2499751A (en) 2013-08-28

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