EP0064937A2 - Méthode et fabrication de planches à voile ou de surf - Google Patents

Méthode et fabrication de planches à voile ou de surf Download PDF

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Publication number
EP0064937A2
EP0064937A2 EP82710028A EP82710028A EP0064937A2 EP 0064937 A2 EP0064937 A2 EP 0064937A2 EP 82710028 A EP82710028 A EP 82710028A EP 82710028 A EP82710028 A EP 82710028A EP 0064937 A2 EP0064937 A2 EP 0064937A2
Authority
EP
European Patent Office
Prior art keywords
sailing
foam core
core element
undersize
foam
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
EP82710028A
Other languages
German (de)
English (en)
Other versions
EP0064937A3 (en
EP0064937B1 (fr
Inventor
Wolfgang Frank
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.)
Mistral Windsurfing AG
Original Assignee
Mistral Windsurfing 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6131992&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0064937(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mistral Windsurfing AG filed Critical Mistral Windsurfing AG
Priority to AT82710028T priority Critical patent/ATE18880T1/de
Publication of EP0064937A2 publication Critical patent/EP0064937A2/fr
Publication of EP0064937A3 publication Critical patent/EP0064937A3/de
Application granted granted Critical
Publication of EP0064937B1 publication Critical patent/EP0064937B1/fr
Expired 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
    • B63B32/50—Boards characterised by their constructional features
    • 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 method for producing sailing or surfboards according to the preamble of patent claim 1 and to a sailing or surfboard according to the preamble of patent claim 8.
  • EPS core expanding polystyrene
  • a foaming adhesive is applied to the EPS core before it is inserted. This is, for example, a foaming adhesive based on polyurethane or epoxy. It also serves to compensate for tolerances between the core and the shell.
  • the disadvantage of the known method is that the thickness of the shell parts and the density of the EPS core must be chosen to be relatively high in order to achieve sufficient compressive strength and rigidity over a long service life. In addition, there is the disadvantage that it is difficult to achieve a durable bond between the two shell parts.
  • the so-called one-shell construction is more favorable, in which the EPS core is already inserted between the shell parts, while the shell material is still heated and is therefore plastic, so that the deep-drawn shell parts are joined together and possibly also with the core material when they are subsequently joined together be welded.
  • this requires a high dimensional accuracy of the EPS core, which, in addition to high production costs, prevents the time wasting - behavior of the expanding polystyrene.
  • the EPS core must also be handled very carefully before it is inserted between the shell parts, since any damage to the core affects the connection between the core and the shell. In addition, there is the problem of ventilation when assembling the shell parts.
  • the invention is therefore based on the object to provide a method according to the preamble of claim 1 that can produce a light board of high strength and long life.
  • the invention also relates to a sailing or. Surfboard with these characteristics.
  • the claim 8 characterizes an inventive sailing or. Surfboard.
  • a support layer is formed at least in regions between the foam core and the shell, which fixes the foam core element spatially exactly, due to its own elasticity tolerance problems of the EPS Foam core eliminated and the compressive strength of the core increased.
  • the qualitative requirements for the foam core element are therefore significantly lower, which also leads to a cost reduction in the production of the foam core element.
  • the cavity formed by the undersize of the foam core element, in which the knitted thread is located is foamed. This can advantageously be done by injecting a foaming substance into this cavity after the shell parts have been joined together.
  • foaming adhesive in the area of the knitted fabric to the foam core element before inserting the foam core element, which fills the cavity after the shell parts have been joined together.
  • This foam also serves as a secure binding agent between the shell and the core in the manner of an adhesive.
  • the foam forms a thread-reinforced edge zone, which connects the shell to the foam core element and has excellent pressure resistance, so that it absorbs loads that are transmitted through the shell inwards. This makes it possible to use extremely light foam (up to 12 gr / Ltr) for the foam core element without the overall strength of the board suffering.
  • a foam core element 1 is produced in accordance with the shape of the sail or surfboard to be produced. This does not already have the nominal size of the foam core, but it is manufactured with an undersize of, for example, 15mm. Depending on the requirements placed on the sailboard, the foam core element is made all around with this undersize or only certain outside areas are given this undersize. For example, the undersize can be limited to the outer surface area of the foam core element, which corresponds to the upper surface of the sail board or only the footprint of the sail board. Expanding polystyrene or another lightweight packing material is particularly suitable as the material for the foam core element, specifically with a density of 12 to 15 gr / liter.
  • the undersized surface areas of the foam core element 1 are then covered with a knitted thread 2 so that the resulting composite element receives the target contour of the core.
  • the knitted thread 2 is expediently needled onto the foam core element. It has the shape of a mat with a thickness that corresponds to the undersize, for example 15 mm.
  • the knitted thread consists of relatively stiff plastic threads that run through the mat space in an irregular course and are welded together at points of mutual contact.
  • it is polypropylene threads.
  • the mat is so flexible that it can be needled onto curved surfaces, while on the other hand it is relatively hard perpendicular to the plane of the mat and can absorb and transmit corresponding loads. Flexibility and hardness naturally depend on the rigidity and number of threads per unit volume.
  • metal wires j such as aluminum wires 1 or even a knitted fabric made of, for example, coconut fibers can also be used.
  • the foam core element 1 provided with the knitted fabric 2 is then inserted between two deep-drawn shell parts 3 and 4 of the sailing board and the shell parts are then joined together against one another via the foam core element.
  • the two-shell construction can be used, in which the two shell parts 3, 4 are glued together at their butt joint, or the single-shell construction, in which the foam core element 1 is inserted between the shell parts 3, 4 while the shell parts 3, 4 are still heated and thus plastic, and the shell parts then be welded together when joining.
  • Thermoplastic or thermosetting plastics can be used as the material for the shell parts.
  • the manufacturing process according to a first variant of the method is ended.
  • the knitted thread 2 connects the shell parts 3, 4 to the foam core element 1. If the shell parts are still in a plastic state when they are joined together, welding can occur between the shell parts and the knitted thread thread, while the knitted thread penetrates the foam core element 1 slightly when the shell parts are joined and there is mechanically anchored next to the needling.
  • a similar connection between the shell parts and the knitted fabric 2 can be achieved by previously coating the shell parts with adhesive.
  • a second variant of the method is to foam the cavity formed by the undersize of the foam core element, in which the knitted yarn 2 is located. This can be done by applying foaming adhesive to the foam core element 1 over the undersize area of the foam core element 1. This foaming adhesive based on polyurethane or epoxy then completely fills the cavity formed when the shell parts are joined with foam 5 .
  • de s method is, lecturTimeumen the cavity in which the Fadengewirk is located after the joining of the shell parts, by applying a foaming substance, in particular polyurethane oderEpoxyschaum 5 is injected. The foaming substance wets the knitted thread and fills all cavities, in particular also damaged areas of the foam core element 1.
  • This foaming results in a between the shell and the foam core element in the undersize areas Intermediate layer of foam reinforced by the knitted fabric, which has excellent compressive strength and creates a secure connection between the shell and the foam core element, which is equivalent to gluing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
EP82710028A 1981-05-11 1982-05-11 Méthode et fabrication de planches à voile ou de surf Expired EP0064937B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82710028T ATE18880T1 (de) 1981-05-11 1982-05-11 Verfahren zur herstellung von segel- bzw. surfbrettern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3118631 1981-05-11
DE3118631A DE3118631C2 (de) 1981-05-11 1981-05-11 Verfahren zur Herstellung von Segel- bzw. Wellenreitbrettern sowie Segel- bzw. Wellenreitbrett

Publications (3)

Publication Number Publication Date
EP0064937A2 true EP0064937A2 (fr) 1982-11-17
EP0064937A3 EP0064937A3 (en) 1983-01-05
EP0064937B1 EP0064937B1 (fr) 1986-04-02

Family

ID=6131992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82710028A Expired EP0064937B1 (fr) 1981-05-11 1982-05-11 Méthode et fabrication de planches à voile ou de surf

Country Status (6)

Country Link
EP (1) EP0064937B1 (fr)
JP (1) JPS58500691A (fr)
AT (1) ATE18880T1 (fr)
AU (1) AU556390B2 (fr)
DE (1) DE3118631C2 (fr)
WO (1) WO1982004023A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002599A1 (fr) * 1982-01-27 1983-08-04 Frank, Wolfgang Procede de production d'elements prefabriques a grande surface, notamment de planches a voile
WO1985000755A1 (fr) * 1983-08-12 1985-02-28 Taa Technique And Administration Ag Planches a voile et planches de surf ainsi que leur procede de fabrication
WO1990014383A1 (fr) * 1989-05-18 1990-11-29 ISOVOLTA Österreichische Isolierstoffwerke Aktiengesellschaft Procede pour fabriquer un preimpregne s'utilisant comme pli d'armature et emploi de celui-ci
FR2744093A1 (fr) * 1996-01-31 1997-08-01 Largilliere Remy Flotteur destine a une utilisation de loisir et sportive
DE10002185C1 (de) * 2000-01-19 2001-06-07 F2 Internat Ges M B H Verbundkörper, insbesondere Segel- bzw. Wellenreitbrett
US6271463B1 (en) 1998-06-08 2001-08-07 Vantico Inc. Use of expandable epoxy systems for barrier materials in high voltage liquid-filled transformers

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003251A1 (fr) * 1983-02-21 1984-08-30 Barup Pty Ltd Systeme de moulage de produits mousses de polyurethane
DE3447967A1 (de) * 1984-02-24 1985-11-14 Binder, geb. Möschl, Birgit, 7100 Heilbronn Segelbrett
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
DE3512267A1 (de) * 1985-04-03 1986-10-16 Klepper Beteiligungs Gmbh & Co Bootsbau Kg, 8200 Rosenheim Segelbrettkoerper und verfahren zu seiner herstellung
DE3537703C1 (de) * 1985-10-23 1992-09-24 Taa Tech Administration Ag Verbundkoerper,insbesondere Segel- oder Wellenreitbrett,sowie Verfahren zur Herstellung desselben
DE3701953A1 (de) * 1987-01-23 1988-08-04 Klepper Beteiligungs Gmbh & Co Bootskoerper und verfahren zu dessen herstellung
DE19632516C1 (de) * 1996-08-13 1997-11-13 Schuetz Werke Gmbh Co Kg Formwerkzeug und Verfahren zur Herstellung von Surfbrettern
FR2886916B1 (fr) 2005-06-09 2007-10-19 Salomon Sa Flotteur de glisse comportant un pont a strucure sandwich a ame elastique
AU2011369470A1 (en) * 2011-05-31 2014-01-09 CHOTIKAPANICH, Danu Composite materials and articles comprising the same
JP6784493B2 (ja) * 2016-01-25 2020-11-11 株式会社Ｓｕｂａｒｕ ロアアーム

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7603417U1 (fr) * 1900-01-01 Peters, Peter, 8260 Muehldorf
DE1061507B (de) * 1953-07-06 1959-07-16 Bayer Ag Verfahren zur Herstellung von Verbundkonstruktionen aus Deckschichten mit Schaumstoff
DE940787C (de) * 1954-09-03 1956-03-29 Bayer Ag Schwimmkoerper aus Polyurethan-Schaumstoffen
DE1268362B (de) * 1956-01-18 1968-05-16 Armour Res Foundation Of Jllin Durch Metallfaeden verstaerkte Kunststoffe
FR1435581A (fr) * 1965-06-02 1966-04-15 Procédé de construction de caissons et notamment d'embarcations en matière plastique armée
DE2264415B2 (de) * 1972-01-12 1978-01-26 Ausscheidung aus 22 01 319 Klepper-Werke, 8200 Rosenheim Bootskoerper und bootsdeck aus faserverstaerktem kunststoff fuer ein segelboot
JPS565171B2 (fr) * 1973-12-12 1981-02-03
DE2512152A1 (de) * 1975-03-20 1976-10-07 Graf Hagenburg Gmbh Verfahren zur herstellung von koerpern aus glasfaserverstaerktem kunststoff mit schaumstoffkern
CH597032A5 (en) * 1975-09-19 1978-03-31 Scobalit Ag Wind surfer with centre board box, hard foam core and casing
CH612590A5 (en) * 1976-01-05 1979-08-15 Staridee Float of a wind surfer and process for its production
JPS53102392A (en) * 1977-02-18 1978-09-06 Yamaha Motor Co Ltd Fiberrreinforced plastic structure
DE2928579C2 (de) * 1979-07-14 1983-03-17 Shark Wassersportgeräte GmbH, 2830 Bassum Segelbrettrumpf

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002599A1 (fr) * 1982-01-27 1983-08-04 Frank, Wolfgang Procede de production d'elements prefabriques a grande surface, notamment de planches a voile
WO1985000755A1 (fr) * 1983-08-12 1985-02-28 Taa Technique And Administration Ag Planches a voile et planches de surf ainsi que leur procede de fabrication
WO1990014383A1 (fr) * 1989-05-18 1990-11-29 ISOVOLTA Österreichische Isolierstoffwerke Aktiengesellschaft Procede pour fabriquer un preimpregne s'utilisant comme pli d'armature et emploi de celui-ci
FR2744093A1 (fr) * 1996-01-31 1997-08-01 Largilliere Remy Flotteur destine a une utilisation de loisir et sportive
US6271463B1 (en) 1998-06-08 2001-08-07 Vantico Inc. Use of expandable epoxy systems for barrier materials in high voltage liquid-filled transformers
DE10002185C1 (de) * 2000-01-19 2001-06-07 F2 Internat Ges M B H Verbundkörper, insbesondere Segel- bzw. Wellenreitbrett
EP1118535A2 (fr) 2000-01-19 2001-07-25 Boards & More Ges.m.b.H. Corps composite, notamment planche de surf

Also Published As

Publication number Publication date
EP0064937A3 (en) 1983-01-05
DE3118631A1 (de) 1982-11-25
JPS6344392B2 (fr) 1988-09-05
EP0064937B1 (fr) 1986-04-02
AU556390B2 (en) 1986-10-30
WO1982004023A1 (fr) 1982-11-25
ATE18880T1 (de) 1986-04-15
AU8393582A (en) 1982-12-07
DE3118631C2 (de) 1983-11-17
JPS58500691A (ja) 1983-05-06

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