EP0300714A1 - Segellatte - Google Patents

Segellatte Download PDF

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Publication number
EP0300714A1
EP0300714A1 EP88306550A EP88306550A EP0300714A1 EP 0300714 A1 EP0300714 A1 EP 0300714A1 EP 88306550 A EP88306550 A EP 88306550A EP 88306550 A EP88306550 A EP 88306550A EP 0300714 A1 EP0300714 A1 EP 0300714A1
Authority
EP
European Patent Office
Prior art keywords
batten
sail
sail batten
elongate element
cross
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.)
Withdrawn
Application number
EP88306550A
Other languages
English (en)
French (fr)
Inventor
Raphael Saperstein
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
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
Application filed by Individual filed Critical Individual
Publication of EP0300714A1 publication Critical patent/EP0300714A1/de
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • THIS INVENTION relates to a sail batten. More particularly, the invention relates to a batten for a sailboard sail.
  • Sailboards are watercrafts meant for sailboarding or wind surfing, which essentially include a streamlined base on which is mounted a mast to which a sail is attached, a boom being provided for manipulating the mast and the sail and thus for navigating the sailboard. Since the early eighties, the sails of sailboards are increasingly being provided with battens for stiffening, supporting or reinforcing the sails and ensuring that the sails are in a desired manouvreable position in relation to wind direction in order that the sailboard is navigable at optimum speeds with optimum efficiency.
  • Sail battens of the prior art generally apply to yachts, and the like, but when applied to sailboards generally comprise flat strips of uniform or tapering width and of uniform or tapering thickness made of wood, or plastics. Whilst these sail battens claim to be extremely successful, their construction is labour intensive and involves a considerable wastage of material. These battens are also relatively heavy.
  • a sail batten which includes a formed, hollow, non cylindrical elongate element defining a varying cross-sectional profile along its length.
  • the elongate element may typically taper from one end of the element to the other.
  • the elongate, hollow element may have a constant thickness wall along the length thereof.
  • the wall thickness of the elongate element may vary between opposite ends of the element.
  • the wall thickness of the elongate element may taper in the same direction as does the cross-sectional profile of the element.
  • a second aspect of the invention accordingly provides for a sail batten which includes an elongate hollow non-cylindrical element defining a varying cross-sectional profile and having a tapered bore.
  • the wall thickness of the element may be substantially constant but, alternatively, the wall thickness of the elongate element may taper from one end of the element to the other end.
  • the varying cross-sectional profile of the element may taper from one end of the elongate element to the other and, typically, may taper in the same direction as does the wall thickness of the element.
  • the degree of taper of the wall thickness and/or the cross-sectional profile of the elongate element, forming a batten in accordance with both aspects of the invention may determine the required bending or flexing properties of the batten and also its compression pressure and draught percentage, it being well known that different battens require different properties and that sail board battens do not define a regular arcuate profile when bent into its normal operational mode.
  • the degree of taper can therefore be variable and may particularly be determined by specific batten requirements.
  • the degree of taper of the cross-sectional profile of the element may generally determine the bending properties of a batten whereas wall thickness tapering can provide for exact properties.
  • the profile of a batten in accordance with the invention, may be variable, the typical ratio of major axis length to minor axis length of the cross-section being between 4:1 and 2,5:1.
  • the inner and outer cross-sectional profile of battens in accordance with both aspects of the invention may be elliptical, polygonal, substantially rectangular with round ends, or the like.
  • battens in accordance with both aspects of the invention, may be of fibreglass being a composition including glass fibres and a thermosetting resin.
  • the glass fibers may be provided in sheet form, so that they can be wound onto a mandril for forming a batten.
  • the glass fibre content may comprise unidirectional glass fibre sheeting of approximately 0,25mm thickness.
  • the thermosetting resin may be an isothalic resin such as a polyester resin, or the like.
  • the typical ratio of glass fibre to resin may be in the region of 60:40.
  • Battens in accordance with both aspects of the invention, may further include a filler material, inserted into the hollow element.
  • the filler material may be specifically adapted to prevent wall collapse of the elongate element when bent and, as such, may comprise glass microspheres, a suitable foam material, or the like.
  • a batten in accordance with the invention, may include end caps for closing-off opposite ends of the hollow element forming the batten.
  • a batten for a sailboard sail in accordance with the invention, is generally indicated by the reference numeral 10.
  • the batten 10 comprises an elongate, hollow element 12 defining a non cylindrical cross-sectional profile that varies from one end of the element to the other.
  • the particular element 12 as shown tapers from one end to the other and has a constant wall thickness.
  • the wall thickness of the element 12 may also taper, from one end of the element to the other (not shown), the direction of taper of the wall thickness in such a case conveniently being the same as the direction of taper of the overall cross-sectional profile of the element.
  • the exact profile of the element 12 may be variable for different battens and it is particularly anticipated that the element will define a flat rectangular shaped profile having curved ends and having a major axis to minor axis ratio of between 4:1 and 2,5:1.
  • the said profile may also be elliptical, oval, polygonal, or the like.
  • the batten can have a tapering outer profile as well as a tapering inner bore as seen in Figure 4a or a constant inner bore with a tapering outer profile as seen in Figure 4b or a constant outer profile with a tapering inner bore as seen in Figure 4c. In this way battens can be provided that have substantially the exact bending properties as may be required for specific sailboard sail applications.
  • the sail batten 10 can be manufactured of fibre glass being a composition including glass fibres and a thermosetting resin and, as such, the batten 10 can typically be manufactured of uni-directional glass fibre sheeting having a 0,25mm thickness, which can be wound onto a mandril for forming the batten, and which sheeting can be bound together by means of a polyester resin, or the like.
  • the ratio of glass fibres to polyester resin may typically be 60:40. Different methods of manufacture are also envisaged.
  • the batten 10 may optionally have a filler material 14 inserted into the elongate element 12 along the length thereof, the filler material typically being glass microspheres or a suitable foam material that can prevent collapsing of the tubular element 12 as a result of bending or twisting forces acting on the batten.
  • opposite ends of the batten 10 may be provided with end caps 16 (only one shown in Figure 3), the end caps 16 being adapted to fit into opposite ends of the elongate element 12 as is clearly illustrated in Figure 3.
  • battens in accordance with the invention, will be significantly cheaper than existing known battens while also being significantly lighter, and as these battens can be provided with specific bending or flexing properties it is believed that these battens will prove to be a significant development in the sailboard industry and, in particular, in respect of sailboard sails.
  • the mode of use of battens of the above kind is well known and is therefore not described in any further detail in this specification.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reinforced Plastic Materials (AREA)
EP88306550A 1987-07-17 1988-07-18 Segellatte Withdrawn EP0300714A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA875272 1987-07-17
ZA875272 1987-07-17

Publications (1)

Publication Number Publication Date
EP0300714A1 true EP0300714A1 (de) 1989-01-25

Family

ID=25578925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88306550A Withdrawn EP0300714A1 (de) 1987-07-17 1988-07-18 Segellatte

Country Status (2)

Country Link
EP (1) EP0300714A1 (de)
AU (1) AU1915188A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2370025A (en) * 2000-12-14 2002-06-19 John Robert Panton Inflatable tapered sail batten
WO2012045893A1 (es) * 2010-10-05 2012-04-12 Fundacion Fatronik Sables de vela con estabilidad mejorada

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608172A (en) * 1946-10-11 1952-08-26 Biuw Carl Oscar Eric Sail batten
US3168068A (en) * 1964-03-09 1965-02-02 George A Lasko Batten for sails
US3581698A (en) * 1968-06-05 1971-06-01 John U Bete Sail batten
US3905321A (en) * 1974-03-22 1975-09-16 Jr Joseph A Blythe Sail batten
EP0233129A1 (de) * 1986-01-16 1987-08-19 Cegedur Societe De Transformation De L'aluminium Pechiney Metall-Kunststoff-Verbundsegellatte

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608172A (en) * 1946-10-11 1952-08-26 Biuw Carl Oscar Eric Sail batten
US3168068A (en) * 1964-03-09 1965-02-02 George A Lasko Batten for sails
US3581698A (en) * 1968-06-05 1971-06-01 John U Bete Sail batten
US3905321A (en) * 1974-03-22 1975-09-16 Jr Joseph A Blythe Sail batten
EP0233129A1 (de) * 1986-01-16 1987-08-19 Cegedur Societe De Transformation De L'aluminium Pechiney Metall-Kunststoff-Verbundsegellatte

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2370025A (en) * 2000-12-14 2002-06-19 John Robert Panton Inflatable tapered sail batten
WO2012045893A1 (es) * 2010-10-05 2012-04-12 Fundacion Fatronik Sables de vela con estabilidad mejorada

Also Published As

Publication number Publication date
AU1915188A (en) 1989-01-19

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19900905

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18D Application deemed to be withdrawn

Effective date: 19910116