EP0355419A1 - Mast for a sail - Google Patents

Mast for a sail Download PDF

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Publication number
EP0355419A1
EP0355419A1 EP89113428A EP89113428A EP0355419A1 EP 0355419 A1 EP0355419 A1 EP 0355419A1 EP 89113428 A EP89113428 A EP 89113428A EP 89113428 A EP89113428 A EP 89113428A EP 0355419 A1 EP0355419 A1 EP 0355419A1
Authority
EP
European Patent Office
Prior art keywords
mast
sail
sailing
foot
formation
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.)
Ceased
Application number
EP89113428A
Other languages
German (de)
French (fr)
Inventor
Thomas J. Weixelbaumer
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 EP0355419A1 publication Critical patent/EP0355419A1/en
Ceased 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 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B15/0083—Masts for sailing ships or boats

Definitions

  • the invention relates to a sail mast, in particular for a sail board, which has a pre-curved course over part of its length in the unloaded state.
  • the sail should be bulged in the lower area than in the upper area, and the known masts, whose flexibility increases from bottom to top and which may still have a pre-curve in the upper end area, therefore hinder the desired one Formation of the sail belly curve at least in the foot area of the mast. It is therefore a loss of effectiveness of the sail, uneven sail tensions and greater sail wear and, above all, less favorable sailing conditions.
  • the invention is therefore based on the object to remedy these deficiencies and to create a sail mast of the type described, which ensures the desired formation of the sail belly in the simplest manner, brings with it a uniform and therefore gentle sail load and offers the conditions for optimal sailing conditions.
  • the invention solves this problem in that the mast bend is provided in the lower half of the mast. This allows the mast to follow the desired sail belly curve precisely despite its higher rigidity in the foot area and supports the formation of an optimal sail belly curve. The tensile forces in the sail are reduced, the sail is evenly loaded, it is easy to enforce and guarantees optimal propulsion properties. The best sailing conditions are achieved both in speed sailing and maneuvering sailing.

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  • 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)

Abstract

A mast (1) is bent forward along part of its length in the unloaded state. To facilitate the formation of a convex sail profile whose camber decreases from the foot to the top, the bend (2) is located in the lower half (1a) of the mast.

Description

Die Erfindung bezieht sich auf einen Segelmast, insbesondere für ein Segelbrett, der über einen Teil seiner Länge in unbelastetem Zustand einen vorgebogenen Verlauf aufweist.The invention relates to a sail mast, in particular for a sail board, which has a pre-curved course over part of its length in the unloaded state.

Wie beispielsweise aus der DE-OS 33 00 349 hervorgeht, gibt es bereits Segelmasten mit einem vorgebogenen Ver­lauf, um durch diese Geometrie des Mastes dessen Biege­eigenschaften beeinflussen und dadurch die Mastauslenkung unter Belastung beeinflussen zu können. Bisher sind aller­dings die meist aus glasfaserverstärktem Kunststoff herge­stellten Masten ausschließlich im Bereich des Mastendes vorgekrümmt und im Fußbereich geradlinig, so daß es in diesem durch die größere Maststärke steiferen Fußbereich zu ungünstigen Verhältnissen für das Segelsetzen kommt. Das Segel sollte nämlich, um eine gute Wirkung zu errei­chen, im unteren Bereich stärker gebaucht sein als im oberen Bereich, und die bekannten Masten, deren Biegeweichheit von unten nach oben zunimmt und die gegebenenfalls im oberen Endbereich noch eine Vorkrümmung aufweisen, behindern daher die gewünschte Ausbildung der Segelbauchkurve zumindest im Fußbereich des Mastes. Es sind somit Wirkungsverluste des Segels, ungleichmäßige Segelspannungen und ein größerer Segelverschleiß und vor allem auch ungünstigere Segelbe­dingungen in Kauf zu nehmen.As can be seen, for example, from DE-OS 33 00 349, there are already sailing masts with a pre-curved course in order to be able to influence the bending properties of this mast and thereby influence the mast deflection under load. So far, however, the masts mostly made of glass-fiber reinforced plastic have only been pre-curved in the area of the mast end and straight in the foot area, so that unfavorable conditions for setting sails occur in this foot area, which is stiffer due to the greater mast strength. In order to achieve a good effect, the sail should be bulged in the lower area than in the upper area, and the known masts, whose flexibility increases from bottom to top and which may still have a pre-curve in the upper end area, therefore hinder the desired one Formation of the sail belly curve at least in the foot area of the mast. It is therefore a loss of effectiveness of the sail, uneven sail tensions and greater sail wear and, above all, less favorable sailing conditions.

Der Erfindung liegt daher die Aufgabe zugrunde, diese Mängel zu beseitigen und einen Segelmast der eingangs geschilderten Art zu schaffen, der auf einfachste Weise die angestrebte Segelbauchbildung gewährleistet, eine gleichmäßige und damit schonende Segelbelastung mit sich bringt und die Voraussetzungen für optimale Segelsetzbedingungen bietet.The invention is therefore based on the object to remedy these deficiencies and to create a sail mast of the type described, which ensures the desired formation of the sail belly in the simplest manner, brings with it a uniform and therefore gentle sail load and offers the conditions for optimal sailing conditions.

Die Erfindung löst diese Aufgabe dadurch, daß die Mastbie­gung im Bereich der unteren Masthälfte vorgesehen ist. Dadurch kann der Mast trotz seiner höheren Steifigkeit im Fußbereich der gewünschten Segelbauchkurve genau fol­gen und unterstützt die Ausbildung eines optimalen Segel­bauchverlaufes. Die Zugkräfte im Segel werden verringert, das Segel wird gleichmäßig belastet, es ist mühelos durchzu­setzen und garantiert optimale Vortriebseigenschaften. Es kommt sowohl beim Geschwindigkeitssegeln als auch beim Manövriersegeln zu besten Segelbedungungen.The invention solves this problem in that the mast bend is provided in the lower half of the mast. This allows the mast to follow the desired sail belly curve precisely despite its higher rigidity in the foot area and supports the formation of an optimal sail belly curve. The tensile forces in the sail are reduced, the sail is evenly loaded, it is easy to enforce and guarantees optimal propulsion properties. The best sailing conditions are achieved both in speed sailing and maneuvering sailing.

In der Zeichnung ist ein erfindungsgemäßer Segelmast anhand einer schematischen Seitenansicht näher veranschaulicht.In the drawing, a sail mast according to the invention is illustrated in more detail using a schematic side view.

Ein Segelmast 1 aus glasfaserverstärktem Kunststoff weist über einen Teil seiner Länge in unbelastetem Zustand einen vorgebogenen Verlauf auf, wobei die Mastbiegung 2 im Bereich der unteren Masthälfte 1a vorgesehen ist und sich die obere Masthälfte 1b geradlinig erstreckt. Durch diese Krümmung im Fußteil des Mastes wird die Ausbildung einer sich vom Fuß zur Spitze hin verflachenden Segelbauchkurve begünstigt, so daß der erfindungsgemäße Segelmast 1 alle Voraussetzungen für ein optimales Segelsetzen bietet und beste Segeleigen­schaften gewährleistet.A sail mast 1 made of glass fiber-reinforced plastic has a pre-bent course over part of its length in the unloaded state, the mast bend 2 being provided in the region of the lower mast half 1a and the upper mast half 1b extending in a straight line. This curvature in the foot part of the mast favors the formation of a sail belly curve flattening from the foot to the tip, so that the sail mast 1 according to the invention offers all the prerequisites for optimal sailing and ensures the best sailing properties.

Claims (1)

Segelmast, insbesondere für ein Segelbrett, der über einen Teil seiner Länge in unbelastetem Zustand einen vorgebo­genen Verlauf aufweist, dadurch gekennzeichnet, daß die Mastbiegung (2) im Bereich der unteren Masthälfte (1a) vorgesehen ist.Sail mast, in particular for a sail board, which has a pre-curved course over part of its length in the unloaded state, characterized in that the mast bend (2) is provided in the region of the lower mast half (1a).
EP89113428A 1988-08-24 1989-07-21 Mast for a sail Ceased EP0355419A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2083/88 1988-08-24
AT0208388A AT390040B (en) 1988-08-24 1988-08-24 SAILING POLE, ESPECIALLY FOR A SAILING BOARD

Publications (1)

Publication Number Publication Date
EP0355419A1 true EP0355419A1 (en) 1990-02-28

Family

ID=3527392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113428A Ceased EP0355419A1 (en) 1988-08-24 1989-07-21 Mast for a sail

Country Status (5)

Country Link
EP (1) EP0355419A1 (en)
AT (1) AT390040B (en)
AU (1) AU3961489A (en)
WO (1) WO1990002076A1 (en)
ZA (1) ZA895704B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4021996A1 (en) * 1989-07-14 1991-01-17 Unterberger Wolfgang Mast for sailing rig for sure-board - has lower end bent or curved so that it is inclined to main part

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074647A (en) * 1976-07-08 1978-02-21 Delaney Richard D Sailing rig having camber adjustments
FR2492764A1 (en) * 1980-10-24 1982-04-30 Villac Pierre Rigging for wind surfing board - has mast pivoted to board and curved wishbone fixed to mast supporting sail
DE3427753A1 (en) * 1984-03-30 1985-10-10 Dieter 8242 Bischofswiesen Frank Rig for a surfboard
DE3427759A1 (en) * 1984-07-24 1986-01-30 Siemens AG, 1000 Berlin und 8000 München Circuit and apparatus arrangement for vacuum switching apparatuses, for protection against overvoltages
GB2179904A (en) * 1985-09-06 1987-03-18 Adrenalin Co Ltd Sailing craft

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300349C2 (en) * 1983-01-07 1987-01-15 Robert Thoma GmbH Rotho - Kunststoffwerke, 7800 Freiburg Sailing mast, especially hollow mast made of fibre-reinforced plastic for sailing boards

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074647A (en) * 1976-07-08 1978-02-21 Delaney Richard D Sailing rig having camber adjustments
FR2492764A1 (en) * 1980-10-24 1982-04-30 Villac Pierre Rigging for wind surfing board - has mast pivoted to board and curved wishbone fixed to mast supporting sail
DE3427753A1 (en) * 1984-03-30 1985-10-10 Dieter 8242 Bischofswiesen Frank Rig for a surfboard
DE3427759A1 (en) * 1984-07-24 1986-01-30 Siemens AG, 1000 Berlin und 8000 München Circuit and apparatus arrangement for vacuum switching apparatuses, for protection against overvoltages
GB2179904A (en) * 1985-09-06 1987-03-18 Adrenalin Co Ltd Sailing craft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4021996A1 (en) * 1989-07-14 1991-01-17 Unterberger Wolfgang Mast for sailing rig for sure-board - has lower end bent or curved so that it is inclined to main part

Also Published As

Publication number Publication date
AT390040B (en) 1990-03-12
WO1990002076A1 (en) 1990-03-08
ZA895704B (en) 1990-04-25
ATA208388A (en) 1989-08-15
AU3961489A (en) 1990-03-23

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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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