EP0040757A1 - Windsurfbrett - Google Patents

Windsurfbrett Download PDF

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Publication number
EP0040757A1
EP0040757A1 EP81103671A EP81103671A EP0040757A1 EP 0040757 A1 EP0040757 A1 EP 0040757A1 EP 81103671 A EP81103671 A EP 81103671A EP 81103671 A EP81103671 A EP 81103671A EP 0040757 A1 EP0040757 A1 EP 0040757A1
Authority
EP
European Patent Office
Prior art keywords
foam
bandage
fabric
board according
unidirectional
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Withdrawn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
EP81103671A
Other languages
German (de)
English (en)
French (fr)
Inventor
Karl Höfler
Ernst D. Dipl.-Ing. Kilian
Emil Dipl.-Ing. Weiland
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.)
Airbus Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm AG
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 Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Publication of EP0040757A1 publication Critical patent/EP0040757A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/57—Boards characterised by the material, e.g. laminated materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/40—Twintip boards; Wakeboards; Surfboards; Windsurfing boards; Paddle boards, e.g. SUP boards; Accessories specially adapted therefor

Definitions

  • the invention relates to a windsurf board known for use in water sports.
  • the present invention is based on the object of decisively reducing the limits previously set in reducing the specific weight and of considerably reducing the system weight.
  • FIGS. 1a and 1b schematically show a structure of the structure of the windsurfing board designed according to the invention, which is significantly reduced in weight by the targeted use of fiber composite materials - such as glass fiber fabrics, aramid fiber plastic or carbon fiber plastic fabrics.
  • the structure 10 comprises a longitudinal beam 10a with 0 ° unidirectional fabric fibers running essentially in the longitudinal axis on the top and bottom of the board.
  • These unidirectional fiber structures form the upper and lower chords 11, 12 of a so-called shear field girder, the thrust web of which can be designed both as a honeycomb or foam core 15 and as a web structure with a + 45 ° fiber arrangement to the longitudinal axis or as a combination of the two aforementioned solutions.
  • this side member also takes over the longitudinal forces that occur.
  • the previously described outer structure or contour of the surfboard forms a torsion bond 13 with a fiber fabric arrangement of ⁇ 45 ° to the longitudinal axis as already mentioned.
  • This torsion bond 13 now encloses a core 15 made of a so-called honeycomb structure or made of foam. However, it can also enclose hollow chambers, which are then separated from one another by webs, so that if the board is damaged, sufficient buoyancy remains to ensure the necessary safety.
  • the foam core 15 can now be composed of foam parts or foams of different densities, depending on the requirements with regard to the impact and shock resistance.
  • the areas of the board which have to absorb increased forces and are subject to particular stress are preferably reinforced with transverse layers 16 of fiber composite fabric laminates running perpendicular to the longitudinal axis.
  • Fig. 2 shows an embodiment for the construction of a foam core 15, which is made of PVC foam, for example, and the structure of which is then provided at the top and bottom with a + 45 ° diagonal fabric and is designed as a closed torsion bond 13, the longitudinal belt 17 being made of There is 0 ° unidirectional tissue and 14 has 90 ° unidirectional tissue layers as a transverse layer 16 in the area of the shear bandage 14.
  • This foam core 15 consists of a central bridle 1-7 and a middle piece 14 made of a medium density foam which is embedded in a low density foam 15a. This core thus formed is then enclosed or enclosed by a foam jacket 18 made of shockproof high-density foam.
  • the manufacture of the windsurf board according to the invention can now take place in various forms.
  • the structure in so-called negative molds can first be built up from the outside in for the upper and lower shells and then both shells can be connected together with the core, the bonding process and the curing process being combined.
  • Another manufacturing possibility is that shells are prefabricated for the left and right half of the board and then also glued together after installation of the prefabricated side member.
  • Another method which can be used provides that the prefabricated core, after being provided with the belt structure, is covered with a plastic fiber fabric produced by "knitting” or “knitting” and is then impregnated with synthetic resin and cured.
  • the outer casing can then be formed, for example, by a prefabricated hollow body which, for. B. is designed as a shrink tube and clings to the structure under the influence of temperature during the hardening process.
  • the torsion structure or the torsion bandage can also be placed around the prefabricated core in a net-like manner using the filament winding method.
  • the core made of plastic can also be provided with an oversize, whereby the required pressing pressure is generated in a closed mold during the curing process.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Laminated Bodies (AREA)
  • Moulding By Coating Moulds (AREA)
EP81103671A 1980-05-22 1981-05-13 Windsurfbrett Withdrawn EP0040757A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803019535 DE3019535A1 (de) 1980-05-22 1980-05-22 Windsurfbrett
DE3019535 1980-05-22

Publications (1)

Publication Number Publication Date
EP0040757A1 true EP0040757A1 (de) 1981-12-02

Family

ID=6103047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103671A Withdrawn EP0040757A1 (de) 1980-05-22 1981-05-13 Windsurfbrett

Country Status (3)

Country Link
EP (1) EP0040757A1 (el)
DE (1) DE3019535A1 (el)
GR (1) GR74912B (el)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116099A1 (fr) * 1982-11-30 1984-08-22 Jean Alphonse David Mandrin spécial en matériau mousse de plastique pour la réalisation de planche à voile par le procédé d'enroulement filamentaire
GB2378961A (en) * 2001-08-23 2003-02-26 Steven Edward Neal Composite structure with fibres orientated along primary stress lines
EP1475303A2 (fr) * 2000-07-28 2004-11-10 Salomon S.A. Flotteur de glisse sur l' eau et son procédé de réalisation
AU2005201781B2 (en) * 2000-07-28 2008-10-02 Salomon S.A. Subassembly designed to produce an aquatic gliding board

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3406689C2 (de) 1984-02-24 1986-01-23 Binder, geb. Möschl, Birgit, 7100 Heilbronn Verfahren zum Herstellen eines Segelbrettes sowie nach einem solchen Verfahren hergestelltes Segelbrett
DE3447967A1 (de) * 1984-02-24 1985-11-14 Binder, geb. Möschl, Birgit, 7100 Heilbronn Segelbrett
DE3447968A1 (de) * 1984-02-24 1986-01-02 Binder, geb. Möschl, Birgit, 7100 Heilbronn Segelbrett
WO1991004189A1 (en) * 1989-09-13 1991-04-04 Gary Keys Surf craft
US5114370A (en) * 1991-01-04 1992-05-19 Kransco Bodyboard with variable stiffness
US5224890A (en) * 1991-01-04 1993-07-06 Kransco Bodyboard with variable stiffness
US5295883A (en) * 1991-02-15 1994-03-22 Kransco Bodyboard with stiffening reinforcement
US7368031B2 (en) 2003-02-04 2008-05-06 Wham-O, Inc. Laminate inlay process for sports boards
US6908351B2 (en) 2003-06-24 2005-06-21 Wham-O, Inc. Expanded polystyrene core sports board

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514798A (en) * 1968-02-01 1970-06-02 Robert Ellis Surf-board construction and method of making same
US3802010A (en) * 1972-12-18 1974-04-09 Hornbaker R Surfboard construction
AU490812B2 (en) * 1975-11-17 1977-05-26 Herbert Holton Gerald Manufacture of boat hulls and other hollow articles
FR2336954A1 (fr) * 1975-12-30 1977-07-29 Labat Jacques Procede de fabrication d'une planche d'hydroplanage et produits ainsi obtenus
CH597032A5 (en) * 1975-09-19 1978-03-31 Scobalit Ag Wind surfer with centre board box, hard foam core and casing
CH610558A5 (en) * 1975-11-10 1979-04-30 Staridee Floating body of a windsurfer and method of producing it
DE2928579A1 (de) * 1979-07-14 1981-01-29 Shark Wassersport Surfbrettrumpf und verfahren zu seiner herstellung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514798A (en) * 1968-02-01 1970-06-02 Robert Ellis Surf-board construction and method of making same
US3802010A (en) * 1972-12-18 1974-04-09 Hornbaker R Surfboard construction
CH597032A5 (en) * 1975-09-19 1978-03-31 Scobalit Ag Wind surfer with centre board box, hard foam core and casing
CH610558A5 (en) * 1975-11-10 1979-04-30 Staridee Floating body of a windsurfer and method of producing it
AU490812B2 (en) * 1975-11-17 1977-05-26 Herbert Holton Gerald Manufacture of boat hulls and other hollow articles
FR2336954A1 (fr) * 1975-12-30 1977-07-29 Labat Jacques Procede de fabrication d'une planche d'hydroplanage et produits ainsi obtenus
DE2928579A1 (de) * 1979-07-14 1981-01-29 Shark Wassersport Surfbrettrumpf und verfahren zu seiner herstellung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116099A1 (fr) * 1982-11-30 1984-08-22 Jean Alphonse David Mandrin spécial en matériau mousse de plastique pour la réalisation de planche à voile par le procédé d'enroulement filamentaire
EP1475303A2 (fr) * 2000-07-28 2004-11-10 Salomon S.A. Flotteur de glisse sur l' eau et son procédé de réalisation
EP1475303A3 (fr) * 2000-07-28 2005-03-16 Salomon S.A. Flotteur de glisse sur l' eau et son procédé de réalisation
AU2005201781B2 (en) * 2000-07-28 2008-10-02 Salomon S.A. Subassembly designed to produce an aquatic gliding board
GB2378961A (en) * 2001-08-23 2003-02-26 Steven Edward Neal Composite structure with fibres orientated along primary stress lines

Also Published As

Publication number Publication date
GR74912B (el) 1984-07-12
DE3019535A1 (de) 1981-11-26

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Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI NL

17P Request for examination filed

Effective date: 19820211

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19821119

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KILIAN, ERNST D., DIPL.-ING.

Inventor name: HOEFLER, KARL

Inventor name: WEILAND, EMIL, DIPL.-ING.