EP0041160A1 - Surfboard - Google Patents

Surfboard Download PDF

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Publication number
EP0041160A1
EP0041160A1 EP81103672A EP81103672A EP0041160A1 EP 0041160 A1 EP0041160 A1 EP 0041160A1 EP 81103672 A EP81103672 A EP 81103672A EP 81103672 A EP81103672 A EP 81103672A EP 0041160 A1 EP0041160 A1 EP 0041160A1
Authority
EP
European Patent Office
Prior art keywords
surfboard
torsion boxes
boxes
torsion
laminated
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Withdrawn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
EP81103672A
Other languages
German (de)
French (fr)
Inventor
Klaus Dipl.-Ing. Brunsch
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 EP0041160A1 publication Critical patent/EP0041160A1/en
Withdrawn legal-status Critical Current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 surfboard as is generally known in water sports. These devices are - especially those that are made of fiber composite material. - Affected with the disadvantage, that their edge areas are very exposed to damage.
  • the present invention has for its object to remedy this deficiency and to create a surfboard that has very elastic surfboard edges.
  • the proposed surfboard has an upper chord 10 and a lower chord 11, which are preferably formed from a moderately warp-reinforced fabric. These belts give the overall construction the required flexural strength and rigidity. So-called torsions are used to impart sufficient torsional rigidity to the device and also to maintain a shear-resistant connection between the belts boxes 12 provided.
  • the lateral edge region 12a of these boxes is designed as a hollow circular cross-sectional body 13 and is made from a laminate of chemical fiber, for example polyester. While all other laminate parts are laminated with structural resin, ie with a resin with high rigidity and moderate elongation at break, the edge area is made with a flexible resin.
  • This circular cross-sectional body 13 is provided with a hose filled with compressed air.
  • the resulting stabilizing effect of the hose leads to the fact that the torsion box 12, which is circular in shape in this area, becomes full. contributes to thrust transmission.
  • This configuration that is, elastic, round edge and torsion box shaped in this area in a circular manner - achieves maximum flexibility.
  • it is also proposed to insert 12 capsized sacks into the chambers of the torsion boxes, as are known in whitewater boats.
  • the proposed surfboard is manufactured in 2 half-shells, with the parting plane running horizontally.
  • the straps 10, 11 are laminated in the two half-shells.
  • the torsion boxes 13 are manufactured on inflatable elastic cores, which are folded and demolded after the reaction mass has hardened. After the torsion boxes 13 have been placed on the pressure cores, cores with a circular cross section - or almost circular cross section - are placed on the torsion box cores and the chemical fiber laminate is applied via this construction.
  • the cores are then placed in the lower mold shell, the upper mold shell is placed on top and the two mold halves are clamped together and the pressure sacks are filled. This is followed by the curing process of the surf board.

Abstract

Surfboard for water sports in which torsion boxes (12) are arranged between a laminated top chord (10) and bottom chord (11). The torsion boxes have a lateral edge area (12a) which is directed to the outside and leads in each case into a hollow, circular cross-sectional body (13), and the latter in each case encloses a tube (14) filled with compressed air. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Surfbord, wie es im Wassersport allgemein bekannt ist. Diese Geräte sind - insbesondere diejenigen, die aus Faserverbundwerkstoff gefertigt sind. - mit dem Nachteil behaftet,, daß ihre Randbereiche sehr stark einer Beschädigung ausgesetzt sind.The invention relates to a surfboard as is generally known in water sports. These devices are - especially those that are made of fiber composite material. - Affected with the disadvantage, that their edge areas are very exposed to damage.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, diesen Mangel zu beheben und ein Surfbord zu schaffen, das sehr elastische Surfbordkanten besitzt.The present invention has for its object to remedy this deficiency and to create a surfboard that has very elastic surfboard edges.

Diese Aufgabe wird durch die in den Ansprüchen niedergelegten Maßnahmen in einfacher. und zuverlässiger Weise gelöst. In der nachfolgenden Beschreibung ist ein Ausführungsbeispiel der Erfindung beschrieben und in der Zeichnung erläutert. Die einzige Figur der Zeichnung zeigt in schematischer Darstellung einen Querschnitt durch das beschriebene Ausführungsbeispiel, das außer dem genannten Vorteil noch den weiteren Vorteil aufweist, daß durch die Vermeidung eines Vollschaumkernes eine wesentlich geringere Masse zur Fertigung erforderlich ist, was sich auch auf die Herstellungskosten auswirkt.This task is made easier by the measures set out in the claims. and solved reliably. An exemplary embodiment of the invention is described in the following description and explained in the drawing. The single figure of the drawing shows a schematic representation of a cross section through the described embodiment, which, in addition to the advantage mentioned, has the further advantage that a substantially lower mass is required for production by avoiding a solid foam core, which also affects the manufacturing costs.

Das vorgeschlagene Surfbord weist einen Obergurt 10 und einen Untergurt 11 auf, die vorzugsweise aus einem mäßig kettverstärktem Gewebe gebildet werden. Diese Gurte geben der Gesamtkonstruktion die erforderliche Biegefestigkeit und -steifigkeit. Um nun dem Gerät auch eine ausreichende Torsionssteifigkeit zu vermitteln und außerdem eine schubfeste Verbindung zwischen den Gurten zu erhalten, sind sogenannte Torsionskästen 12 vorgesehen. Der seitliche Kantenbereich 12a dieser Kästen wird als hohlkreisförmiger Querschnittskörper 13 ausgebildet und wird aus einem Laminat aus Chemiefaser zum Beispiel Poyester hergestellt. Während alle anderen Laminatanteile mit Strukturharz, d.h. mit einem Harz hoher Steifigkeit und mäßiger Bruchdehnung laminiert sind, ist der Kantenbereich mit.einem flexiblen Harz gefertigt. Dieser kreisförmige Querschnittskörper 13 wird durch einen mit Druckluft gefüllten Schlauch versehen. Die dadurch auftretende stabilisierende Wirkung des Schlauches führt dazu, daß der.in diesem Bereich kreisförmig geformte Torsionskasten 12 voll. zur Schubübertragung beiträgt. Durch diese Ausgestaltung - also elastische, runde Kante und in diesem Bereich kreisförmig geformter Torsionskasten - wird ein Maximum an Flexibilität erreicht. Um den erforderlichen Auftrieb auch bei beschädigtem Surfbord sicherzustellen, wird weiterhin vorgeschlagen, in die Kammern der Torsionskästen 12 sogenannte Kentersäcke - wie sie bei Wildwasserbooten bekannt sind - einzubringen.The proposed surfboard has an upper chord 10 and a lower chord 11, which are preferably formed from a moderately warp-reinforced fabric. These belts give the overall construction the required flexural strength and rigidity. So-called torsions are used to impart sufficient torsional rigidity to the device and also to maintain a shear-resistant connection between the belts boxes 12 provided. The lateral edge region 12a of these boxes is designed as a hollow circular cross-sectional body 13 and is made from a laminate of chemical fiber, for example polyester. While all other laminate parts are laminated with structural resin, ie with a resin with high rigidity and moderate elongation at break, the edge area is made with a flexible resin. This circular cross-sectional body 13 is provided with a hose filled with compressed air. The resulting stabilizing effect of the hose leads to the fact that the torsion box 12, which is circular in shape in this area, becomes full. contributes to thrust transmission. This configuration - that is, elastic, round edge and torsion box shaped in this area in a circular manner - achieves maximum flexibility. In order to ensure the necessary buoyancy even when the surfboard is damaged, it is also proposed to insert 12 capsized sacks into the chambers of the torsion boxes, as are known in whitewater boats.

Die Fertigung des vorgeschlagenen Surfbords erfolgt in 2 Halbschalen, wobei die Trennebene horizontal verläuft. In die beiden Halbschalen werden die Gurte 10, 11 laminiert. Die Fertigung der Torsionskästen 13 erfolgt auf aufblasbare elastische Kerne, welche nach dem Aushärten der Reaktionsmasse gefaltet und entformt werden. Nach dem Auflegen der Torsionskästen 13 auf die Druckkerne werden Kerne mit kreisförmigem Querschnitt - oder nahezu kreisförmigem Querschnitt - auf die Torsionskastenkerne angelegt und über diese Konstruktion das Chemiefaserlaminat aufgetragen.The proposed surfboard is manufactured in 2 half-shells, with the parting plane running horizontally. The straps 10, 11 are laminated in the two half-shells. The torsion boxes 13 are manufactured on inflatable elastic cores, which are folded and demolded after the reaction mass has hardened. After the torsion boxes 13 have been placed on the pressure cores, cores with a circular cross section - or almost circular cross section - are placed on the torsion box cores and the chemical fiber laminate is applied via this construction.

Anschließend werden die Kerne in die untere Formschale eingelegt, die obere Formschale aufgelegt und beide Formhälften miteinander verspannt und die Drucksäcke gefüllt. Daran schließt sich dann der Aushärtevorgang des Surfborda an.The cores are then placed in the lower mold shell, the upper mold shell is placed on top and the two mold halves are clamped together and the pressure sacks are filled. This is followed by the curing process of the surf board.

Claims (4)

1. Surfbord für den Wassersport, dadurch gekennzeichnet , daß zwischen einem laminierten Ober-(10) und Untergurt (11) Torsionskästen (12) angeordnet sind, die einen nach außen gerichteten Seitenkantenbereich (12a) aufweisen, der jeweils in einen halbkreisförmigen Querschnittskörper (13) mündet und letzterer jeweils einen mit Druckluft gefüllten Schlauch (14) umschließt.1. surfboard for water sports, characterized in that between a laminated upper (10) and lower flange (11) torsion boxes (12) are arranged, which have an outwardly directed side edge region (12a), each in a semicircular cross-sectional body (13 ) opens and the latter encloses a hose (14) filled with compressed air. 2. Surfbord nach Anspruch 1, dadurch gekennzeichnet , daß die hohlkreisförmigen Querschnittskörper (13) aus einem Chemiefaserlaminat (Polyester) gebildet sind.2. Surfboard according to claim 1, characterized in that the hollow circular cross-sectional body (13) are formed from a synthetic fiber laminate (polyester). 3. Surfbord nach den Ansprüchen 1 und 2, dadurch gekennzeichnet , daß der Ober-(10) und der Untergurt (11) sowie die Torsionskästen (12) mit einem Harz hoher Steifigkeit und mäßiger Bruchdehnung laminiert sind.3. Surfboard according to claims 1 and 2, characterized in that the upper (10) and the lower flange (11) and the torsion boxes (12) are laminated with a resin of high rigidity and moderate elongation at break. 4. Surfbord nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet , daß der Hohlraum der Torsionskästen (12) mit Luftsäcken belegt ist.4. Surfboard according to claims 1 to 3, characterized in that the cavity of the torsion boxes (12) is covered with air bags.
EP81103672A 1980-05-29 1981-05-13 Surfboard Withdrawn EP0041160A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803020344 DE3020344A1 (en) 1980-05-29 1980-05-29 SURFBOARD
DE3020344 1980-05-29

Publications (1)

Publication Number Publication Date
EP0041160A1 true EP0041160A1 (en) 1981-12-09

Family

ID=6103475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103672A Withdrawn EP0041160A1 (en) 1980-05-29 1981-05-13 Surfboard

Country Status (4)

Country Link
EP (1) EP0041160A1 (en)
DE (1) DE3020344A1 (en)
ES (1) ES258701Y (en)
GR (1) GR74913B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2614868A1 (en) * 1987-04-25 1988-11-10 Mistral Windsurfing Ag SURFBOARD OR SAILBOARD
WO2004087266A1 (en) * 2003-03-31 2004-10-14 Walter Unterweger Gliding device for surfboards
FR2887780A1 (en) * 2005-07-01 2007-01-05 Airkide Sarl SLIDING BOARD AND METHOD OF MANUFACTURING SUCH BOARD
EP3064426A1 (en) * 2015-03-03 2016-09-07 Ellergon Antriebstechnik GmbH Hydrofoil fin

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333473C2 (en) * 1983-09-16 1985-11-21 Deutsche Schlauchbootfabrik Hans Scheibert GmbH & Co KG, 3456 Eschershausen Collapsible sailing board
DE3726066A1 (en) * 1987-04-25 1988-11-10 Dirk Cremer Surfboard or sailboard
NL192100C (en) * 1987-05-27 1997-02-04 Takami Masaho Machine for strapping a product with a strap.
BR9408604A (en) * 1993-08-27 1997-12-23 Richardson James Improved water sports board
AUPM959594A0 (en) * 1994-11-21 1994-12-15 Frasco, Francis A stand-on surfboard with a rigid core and soft outer edges and soft upper deck
USD922509S1 (en) 2019-03-07 2021-06-15 Kona Enterprises, Inc. Water sports board

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2107606A1 (en) * 1971-02-17 1972-08-31 Schroder, Henry, 8225 Traunreut Water sports equipment
DE2512152A1 (en) * 1975-03-20 1976-10-07 Graf Hagenburg Gmbh GRP surfboards with foam core - made by wrapping with inner laminate and using accurately dimensioned outer skin
DE2829380A1 (en) * 1978-07-04 1980-01-17 Marker Hannes Surf-board composed of hard-foam, cavitied core - over which two plastics half-shells are glued, fitted with valve and manometer to check for leakages
FR2466260A1 (en) * 1979-10-02 1981-04-10 Hennebutte Georges Surf board consisting of pneumatic air-tight bag - has panels of laminated material bonded to sides and supple edging

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2107606A1 (en) * 1971-02-17 1972-08-31 Schroder, Henry, 8225 Traunreut Water sports equipment
DE2512152A1 (en) * 1975-03-20 1976-10-07 Graf Hagenburg Gmbh GRP surfboards with foam core - made by wrapping with inner laminate and using accurately dimensioned outer skin
DE2829380A1 (en) * 1978-07-04 1980-01-17 Marker Hannes Surf-board composed of hard-foam, cavitied core - over which two plastics half-shells are glued, fitted with valve and manometer to check for leakages
FR2466260A1 (en) * 1979-10-02 1981-04-10 Hennebutte Georges Surf board consisting of pneumatic air-tight bag - has panels of laminated material bonded to sides and supple edging

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2614868A1 (en) * 1987-04-25 1988-11-10 Mistral Windsurfing Ag SURFBOARD OR SAILBOARD
WO2004087266A1 (en) * 2003-03-31 2004-10-14 Walter Unterweger Gliding device for surfboards
US7073977B2 (en) 2003-03-31 2006-07-11 Walter Unterweger Gliding device for surfboards
FR2887780A1 (en) * 2005-07-01 2007-01-05 Airkide Sarl SLIDING BOARD AND METHOD OF MANUFACTURING SUCH BOARD
EP3064426A1 (en) * 2015-03-03 2016-09-07 Ellergon Antriebstechnik GmbH Hydrofoil fin
US9643694B2 (en) 2015-03-03 2017-05-09 Ellergon Antriebstechnik Gesellschaft M.B.H. Hydrofoil fin

Also Published As

Publication number Publication date
ES258701U (en) 1982-01-01
DE3020344A1 (en) 1981-12-03
GR74913B (en) 1984-07-12
ES258701Y (en) 1982-06-16

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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: 19820301

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Inventor name: BRUNSCH, KLAUS, DIPL.-ING.