EP3192733A1 - Carving kayak - Google Patents

Carving kayak Download PDF

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Publication number
EP3192733A1
EP3192733A1 EP16187209.8A EP16187209A EP3192733A1 EP 3192733 A1 EP3192733 A1 EP 3192733A1 EP 16187209 A EP16187209 A EP 16187209A EP 3192733 A1 EP3192733 A1 EP 3192733A1
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Prior art keywords
boat
hull
edge
kayak
section
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EP16187209.8A
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German (de)
French (fr)
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EP3192733B1 (en
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Eduard Wolffhardt
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
    • B63B34/20—Canoes, kayaks or the like
    • B63B34/21—Canoes, kayaks or the like characterised by constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
    • B63B34/30—Rowing boats specially adapted for racing; Accessories therefor

Definitions

  • the application relates to a boat, in particular a paddle boat (canoe, Canadier, Canadier two, kayak or river kayak), in particular a slalom kayak, comprising a hull with a lower hull and an upper deck and formed in the upper deck seat hatch, wherein the lower hull in a horizontal cross-section widened from the front end and the rear end respectively to the area of the seat hatch.
  • a paddle boat canoe, Canadier, Canadier two, kayak or river kayak
  • slalom kayak comprising a hull with a lower hull and an upper deck and formed in the upper deck seat hatch, wherein the lower hull in a horizontal cross-section widened from the front end and the rear end respectively to the area of the seat hatch.
  • Kayaks and canoes are types of boats that are paddled by a user. When paddling, the user sits or kneels, in contrast to rowing, with a view in the direction of travel. Kayaks are powered while seated using a double paddle, canoes (or better: Canadians) by means of a piercing paddle in a kneeling position.
  • Canoe racing for example, one-, two- and four-person kayak, one-and two-canoe, etc.
  • canoe slalom is a competition discipline of canoeing with the aim to drive a fixed set goals on fast flowing water in no time without error.
  • the object of the present invention is to optimize a canoe or kayak that allows better travel times compared to conventional canoes / kayaks.
  • a boat according to the invention in particular a paddle boat (canoe or kayak), in particular a slalom kayak, comprising a hull with a lower hull and an upper deck and a seat hatch formed in the upper deck, wherein the lower hull in a horizontal cross section of widened front end and from the rear end in each case to the region of the seat hatch, and the transition or the seam between the lower and upper deck at least in the region of the seat hatch is formed by an edge which convexly curved in a side view at least in the area of the seat hatch towards the water surface is.
  • the lower hull In a cross section perpendicular to the longitudinal axis (vertical cross section) of the hull, at least in the region of the seat hatch, the lower hull has a geometry which is substantially convex towards the water side.
  • the expression "essentially convex" does not exclude that straight / even sections are provided in the lower hull, and it should also be possible, for example, for a groove to be provided for stabilizing the lower hull in straight travel.
  • the upper deck in this cross-section extends from the seam formed by an edge between the lower and upper deck towards the edge of the opening (relatively steeply) obliquely inwards towards the central longitudinal axis of the hull.
  • the edge is by definition in a vertical cross-section (perpendicular to the longitudinal axis of the hull) always the laterally outermost point. Ie. the edge has the greatest distance from this plane in each vertical cross-section relative to a plane of symmetry extending perpendicularly through the central longitudinal axis of the hull.
  • the seam between the lower hull and the upper deck is in particular formed by an edge formed on both sides of the boat, the edge being curved in a side view, at least in the area of the seat hatch, towards the water surface in a convex manner (i.e., down towards the water surface).
  • the edge is in front of and in the area of the seat near the water surface.
  • the design of the edge creates an ergonomic carving radius.
  • a more ergonomic paddling is possible because an ergonomic paddle angle can be realized by paddling closer to the kayak axis is possible. This allows the paddler to paddle in an upright and comfortable position.
  • the pitch angle of the upper deck from the edge to the hatch edge in the region of the vertical cross section of the desired width B and the low point of the edge or the center of gravity is at least 60 °, in particular at least 45 °, in particular at least 30 °.
  • this curvature allows a carving effect on upturned cornering. If the "carving radius" is below the water level, a clear line can be kept in the curve. The boat automatically runs a curve according to the geometry of the immersed edge.
  • the edge when cornering and / or in transverse position, the edge can dive deeper into the water in an inclined position and thus make better use of the flow, for example, to accelerate in upstages, at the entrance to the sweeping water or at the exit into the main flow. For example, higher efficiency in using hydropower when edge-up is achieved. The acceleration takes place in the desired direction, with reduced lateral drift. Due to the design of the edge, a better flow behavior of the boat, higher stability when cornering by fin effect is achieved when edge up.
  • the boats have more than one seat hatch.
  • the area of the seat hatch is then within the scope of the invention, the area which extends along the existing seat hatches.
  • the lowest point of the seam or the edge can be approximately at the level of the intended waterline. In particular, this point lies on a plane in the region of a front seat edge of a seat provided in the boat.
  • the lowest point of the seam may also lie longitudinally approximately in a plane passing through the vertical cross-section which extends approximately through the center of gravity of the boat.
  • the lower hull preferably has a maximum width (nominal width) in a horizontal cross section in the region of the seat hatch. That In a particular embodiment, the desired width (widest width) of the boat, the center of gravity and / or the lowest point of the seam lie in a defined vertical plane.
  • the nominal width of the boat according to the invention is lower and further forward than in conventional boats of the same type.
  • the vertical cross section through the maximum width of the lower vessel in the longitudinal direction extends in particular approximately through the center of gravity of the boat.
  • the hull may have the maximum width in a vertical cross-section at the level of the intended waterline.
  • the hull may have a maximum width in a maximum width in a vertical plane passing through the lowest point of the seam.
  • the hull has the maximum width, in particular in a vertical cross-section at the level of the intended waterline.
  • the determination of the width is carried out approximately at the level of the intended waterline.
  • the desired width is also preferably in the middle of the carving radius. While cornering, the area of the edge around the center of gravity extends upwards approx. 5 cm below the waterline than in conventional slalom kayaks. This increases the draft. At the center of gravity in the unfolded position there is a larger volume of water and more buoyancy is created.
  • the lower hull and / or the upper deck can consist of a fiber composite material, in particular of carbon fiber reinforced plastic, and / or a lightweight material based on hemp.
  • a fiber composite material in particular of carbon fiber reinforced plastic
  • / or a lightweight material based on hemp The latter option is environmentally friendly because the lightweight material is not petroleum-based, but is produced on the basis of renewable resources.
  • Woven hemp yarn is used as the fiber that provides the strength, while hemp seed oil is used as the resin matrix.
  • Another material alternative for the lower and / or upper deck is polyethylene.
  • the hull may have a teardrop shape in a horizontal cross section. This means that in the front part of the lower vessel, a widest range is formed, wherein the width of the hull is tapered towards the rear.
  • the lower hull may have a track groove. This can extend in particular from about the bow to the rear to the seating position of the paddler.
  • the track groove (a groove in the fuselage) provides better static in the front fuselage in a straight ride and prevents commuting.
  • FIG. 1 a side view of a slalom kayak 1 according to the invention is shown. It consists essentially of a lower hull 2 (hull) and an upper deck 3, which forms approximately a cover. Both components are for example made of fiber composite material, in particular of carbon fiber reinforced plastic, and / or a lightweight construction material based on hemp and / or polyethylene.
  • the upper deck 3 there is a seat hatch 4.
  • the arrow F indicates the intended direction of travel. This direction also corresponds to the line of sight of an occupant.
  • the boat 1 has a curved or curved edge 5 between the lower hull 2 and the upper deck 3 at least in the region of the seat hatch 4 down to the water surface.
  • This forms a convex edge 5 with a low point 50 which lies in a direction perpendicular to a longitudinal axis plane S, which intersects the boat 1 approximately at the level of the front seat edge of the seat.
  • the low point 50 is in straight alignment of the boat 1 at about the level of the water level.
  • edge 5 is a carving effect when cornering when immersing the same in the water in oblique orientations of the kayak 1 allows. If the "carving radius" is below the water level, a clear line can be kept in the curve.
  • the boat 1 autonomously travels a curve according to the geometry of the submerged edge 5.
  • the center of gravity SP in the plane S which runs approximately along the front edge of the seat 40.
  • the boat 1 also at the height of the low point 50 of the curvature 5-a target width B (largest width B compared with all vertical sections S along and perpendicular to the longitudinal axis L) on. Due to the fact that the nominal width B has moved somewhat forward, the boat has a kind of teardrop shape in plan view.
  • FIG. 3 The effects are also shown in the left sectional view of a kayak 1 according to the invention FIG. 3 shown. While in the right-hand illustration of a conventional boat 1 'the seam between the lower hull 2' and the upper deck 3 'is relatively high and the edge 5' is straight and parallel to the water surface, the lowest point 50 shown in the section S lies along the length L of the Boat 1 curved edge 5 much deeper and also the target width is much lower than in the conventional boat 1 '.
  • the edge 5 is defined as the outermost point of the hull 2.3 and usually forms the seam between the lower hull 2 and upper deck. 3
  • the figure4 left is a view of the boat 1 according to the invention from the front with an occupant F and right a corresponding view of a conventional boat 1 'with an occupant F', each shown in the forward drive.
  • the low point 50 is at water level W and the edge 5 is located approximately at or slightly above the water level W.
  • the occupant F of the inventive boat 1 can paddle much more ergonomically than the occupant F 'of the boat 1', since the edge 5 is lower, and the upper deck 30 in the region of the vertical section S thus to the hatch edge of the hatch. 4 sloping and towards the central axis L steeper rising than the conventional boat 1'verumble (the pitch angle is at boat 1 about 60 °, the boat 1 'at most half of it). This makes it easier to guide the paddle P diagonally down into the water.
  • the nominal width of the boat 1 at water level W is slightly larger than in the conventional boat 1 '.
  • a running groove 20 is formed at least between the bow and the seating area approximately, which improves the statics in the front fuselage area and prevents oscillation.
  • the FIG. 5 shows the two boats 1,1 'off FIG. 4 in an incline position, such as when exiting from an upward gateway to a slalom course.
  • the edge 5 can dive deeper into the water in the inclined position and thus make better use of the flow, for example, to accelerate in up-grades, at the entrance to the sweeping water or at the exit into the main flow.
  • the area of the edge 50 extends about the center of gravity SP tilted about 5 cm further below the waterline W than the conventional slalom kayak 1 '. As a result, less lateral drift, a strong acceleration and thus faster travel times are achieved.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
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Abstract

Ein Slalom-Kajak 1 besteht im Wesentlichen aus einem Unterschiff 2 und einem Oberdeck 3, das etwa eine Abdeckung bildet. Das Boot 1 weist eine wenigstens im Bereich einer Sitzluke 4 nach unten zur Wasseroberfläche hin ausgewölbte bzw. gekrümmte Kante 5 zwischen Unterschiff 2 und Oberdeck 3 auf. Der Tiefpunkt 50 liegt bei gerader Ausrichtung des Bootes 1 in etwa auf Höhe des Wasserspiegels. Durch die Kante 5 wird beim Eintauchen derselben in das Wasser bei Schrägausrichtungen des Kajaks 1 ein Carving Effekt bei Kurvenfahrten ermöglicht. In Normallage des Bootes 1 ist mehr Volumen im Unterschiff und damit wird mehr Auftrieb erzeugt.A slalom kayak 1 consists essentially of a lower hull 2 and an upper deck 3, which forms approximately a cover. The boat 1 has at least in the area of a seat hatch 4 down to the water surface curved or curved edge 5 between the lower hull 2 and upper deck 3. The low point 50 is in straight alignment of the boat 1 at about the level of the water level. By the edge 5 is a carving effect when cornering when immersing the same in the water in oblique orientations of the kayak 1 allows. In normal position of the boat 1 is more volume in the lower vessel and thus more buoyancy is generated.

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Anmeldung betrifft ein Boot, insbesondere ein Paddelboot (Kanu, Canadier, Canadier Zweier, Kajak oder Flusskajak), insbesondere ein Slalom-Kajak, umfassend einen Bootskörper mit einem Unterschiff und einem Oberdeck sowie einer im Oberdeck ausgebildeten Sitzluke, wobei sich das Unterschiff in einem horizontalen Querschnitt vom vorderen Ende und vom hinteren Ende jeweils zum Bereich der Sitzluke hin verbreitert.The application relates to a boat, in particular a paddle boat (canoe, Canadier, Canadier two, kayak or river kayak), in particular a slalom kayak, comprising a hull with a lower hull and an upper deck and formed in the upper deck seat hatch, wherein the lower hull in a horizontal cross-section widened from the front end and the rear end respectively to the area of the seat hatch.

STAND DER TECHNIKSTATE OF THE ART

Kajaks und Kanus sind Bootstypen, die von einem Benutzer durch Paddeln angetrieben werden. Beim Paddeln sitzt bzw. kniet der Benutzer, im Gegensatz zum Rudern, mit Blick in Fahrtrichtung. Kajaks werden im Sitzen mittels eines Doppelpaddels angetrieben, Kanus (oder besser: Canadier) mittels eines Stechpaddels in kniender Position.Kayaks and canoes are types of boats that are paddled by a user. When paddling, the user sits or kneels, in contrast to rowing, with a view in the direction of travel. Kayaks are powered while seated using a double paddle, canoes (or better: Canadians) by means of a piercing paddle in a kneeling position.

Beide Bootstypen werden als Transportmittel, insbesondere aber in heutiger Zeit als Sportgeräte verwendet. So werden unterschiedliche Disziplinen wie Kanurennsport (z.B. Einer-, Zweier- und Vierer-Kajak, Einer- und Zweier-Canadier, etc.) oder Kanuslalom ausgetragen. Kanuslalom ist eine Wettkampfdisziplin des Kanusports mit dem Ziel, eine mit Toren festgelegte Strecke auf schnell fließendem Wasser in kürzester Zeit fehlerfrei zu befahren.Both types of boats are used as a means of transport, but especially in modern times as sports equipment. Thus, various disciplines such as canoe racing (for example, one-, two- and four-person kayak, one-and two-canoe, etc.) or canoe slalom are held. Canoe slalom is a competition discipline of canoeing with the aim to drive a fixed set goals on fast flowing water in no time without error.

Wie in allen auch als Leistungssport betriebenen Sportarten wurden die Sportgeräte stets verbessert und optimiert, um die Geschwindigkeit durch technische Neuerungen zu erhöhen.As in all other sport sports, the sports equipment has always been improved and optimized to increase speed through technical innovations.

AUFGABE DER ERFINDUNGOBJECT OF THE INVENTION

Ausgehend davon besteht die Aufgabe der vorliegenden Erfindung darin, ein Kanu oder Kajak zu optimieren, das gegenüber herkömmlichen Kanus/Kajaks bessere Fahrzeiten ermöglicht.Based on this, the object of the present invention is to optimize a canoe or kayak that allows better travel times compared to conventional canoes / kayaks.

TECHNISCHE LÖSUNGTECHNICAL SOLUTION

Diese Aufgabe wird gelöst durch die Bereitstellung eines Bootes, insbesondere eines Kanus oder Kajaks, insbesondere eines Slalom-Kajaks nach Anspruch 1. Bevorzugte Ausführungsformen der Erfindung ergeben sich aus den Merkmalen der abhängigen Ansprüche.This object is achieved by the provision of a boat, in particular a canoe or kayak, in particular a slalom kayak according to claim 1. Preferred embodiments of the invention will become apparent from the features of the dependent claims.

Ein erfindungsgemäßes Boot, insbesondere Paddelboot (Kanu oder Kajak), insbesondere ein Slalom-Kajak, umfassend einen Bootskörper mit einem Unterschiff und einem Oberdeck sowie einer im Oberdeck ausgebildeten Sitzluke, wobei sich das Unterschiff in einem horizontalen Querschnitt vom vorderen Ende und vom hinteren Ende jeweils zum Bereich der Sitzluke hin verbreitert, und der Übergang bzw. die Naht zwischen Unterschiff und Oberdeck wenigstens im Bereich der Sitzluke durch eine Kante ausgebildet ist, die in einer Seitenansicht wenigstens im Bereich der Sitzluke zur Wasseroberfläche hin konvex gekrümmt ist.A boat according to the invention, in particular a paddle boat (canoe or kayak), in particular a slalom kayak, comprising a hull with a lower hull and an upper deck and a seat hatch formed in the upper deck, wherein the lower hull in a horizontal cross section of widened front end and from the rear end in each case to the region of the seat hatch, and the transition or the seam between the lower and upper deck at least in the region of the seat hatch is formed by an edge which convexly curved in a side view at least in the area of the seat hatch towards the water surface is.

Das Unterschiff weist in einem Querschnitt senkrecht zur Längsachse (senkrechter Querschnitt) des Bootskörpers wenigstens im Bereich der Sitzluke eine zur Wasserseite hin im Wesentlichen konvex ausgebildete Geometrie auf. Der Ausdruck "im Wesentlichen konvex schließt nicht aus, dass im Unterschiff(Rumpf) auch gerade/ ebene Abschnitte vorgesehen sind. Außerdem soll es möglich sein, dass beispielsweise eine Rille ausgebildet ist, die zur Stabilisierung des Unterschiffs bei gerader Fahrt vorgesehen ist.In a cross section perpendicular to the longitudinal axis (vertical cross section) of the hull, at least in the region of the seat hatch, the lower hull has a geometry which is substantially convex towards the water side. The expression "essentially convex" does not exclude that straight / even sections are provided in the lower hull, and it should also be possible, for example, for a groove to be provided for stabilizing the lower hull in straight travel.

Das Oberdeck erstreckt sich in diesem Querschnitt von dem durch eine Kante gebildete Naht zwischen Unterschiff und Oberdeck zum Rand der Öffnung hin (relativ steil) schräg nach innen in Richtung der zentralen Längsachse des Bootskörpers hin. Die Kante ist definitionsgemäß in einem senkrechten Querschnitt (senkrecht zur Längsachse des Bootskörpers) stets der seitlich äußerste Punkt. D. h. die Kante hat bezogen auf eine sich senkrecht durch die zentrale Längsachse des Bootskörpers erstreckende Symmetrieebene von dieser Ebene in jedem senkrechten Querschnitt den größten Abstand.The upper deck in this cross-section extends from the seam formed by an edge between the lower and upper deck towards the edge of the opening (relatively steeply) obliquely inwards towards the central longitudinal axis of the hull. The edge is by definition in a vertical cross-section (perpendicular to the longitudinal axis of the hull) always the laterally outermost point. Ie. the edge has the greatest distance from this plane in each vertical cross-section relative to a plane of symmetry extending perpendicularly through the central longitudinal axis of the hull.

Die Naht zwischen Unterschiff und Oberdeck ist insbesondere durch eine sich beidseitig am Boot ausgebildete Kante gebildet, wobei die Kante in einer Seitenansicht wenigstens im Bereich der Sitzluke zur Wasseroberfläche hin konvex (d.h. nach unten zur Wasseroberfläche hin) gekrümmt ist. Die Kante liegt vor und im Bereich des Sitzes nahe der Wasseroberfläche.The seam between the lower hull and the upper deck is in particular formed by an edge formed on both sides of the boat, the edge being curved in a side view, at least in the area of the seat hatch, towards the water surface in a convex manner (i.e., down towards the water surface). The edge is in front of and in the area of the seat near the water surface.

Insgesamt wird durch die Ausbildung der Kante ein ergonomischer Carving Radius erzeugt. Durch die Ausbildung der Kante ist nämlich einerseits ein ergonomischeres Paddeln möglich, da ein ergonomischer Paddelwinkel realisiert werden kann, indem das Paddeln näher an der Kajakachse möglich ist. Damit kann der Paddler in einer aufgerichteten und komfortablen Position paddeln. Insbesondere beträgt der Steigungswinkel des Oberdecks von der Kante zum Lukenrand hin im Bereich des senkrechten Querschnitts der Sollbreite B bzw. des Tiefpunkts der Kante bzw. des Schwerpunkts wenigstens 60°, insbesondere wenigstens 45°, insbesondere wenigstens 30°.Overall, the design of the edge creates an ergonomic carving radius. By forming the edge, on the one hand, a more ergonomic paddling is possible because an ergonomic paddle angle can be realized by paddling closer to the kayak axis is possible. This allows the paddler to paddle in an upright and comfortable position. In particular, the pitch angle of the upper deck from the edge to the hatch edge in the region of the vertical cross section of the desired width B and the low point of the edge or the center of gravity is at least 60 °, in particular at least 45 °, in particular at least 30 °.

Durch diese Krümmung wird andererseits ein Carving Effekt bei aufgekanteten Kurvenfahrten ermöglicht. Befindet sich der "Carving Radius" unter dem Wasserspiegel, kann in der Kurve eine klare Linie gehalten werden. Das Boot fährt selbstständig eine Kurve entsprechend der Geometrie der eingetauchten Kante.On the other hand, this curvature allows a carving effect on upturned cornering. If the "carving radius" is below the water level, a clear line can be kept in the curve. The boat automatically runs a curve according to the geometry of the immersed edge.

Außerdem kann in einer Schräglage die Kante bei Kurvenfahrten und/oder in Querstellung tiefer in das Wasser eintauchen und so die Strömung besser nutzen, um z.B. in Aufwärtstoren, bei der Einfahrt ins Kehrwasser bzw. bei der Ausfahrt in die Haupt-Strömung zu beschleunigen. Es wird beispielsweise höhere Effizienz bei der Nutzung der Wasserkraft beim Aufkanten erreicht. Die Beschleunigung findet in der gewünschten Richtung statt, bei verminderter Seitendrift. Durch die Ausbildung der Kante wird ein besseres Strömungsverhalten des Bootes, höhere Stabilität bei Kurvenfahrten durch Finneneffekt beim Aufkanten erzielt.In addition, when cornering and / or in transverse position, the edge can dive deeper into the water in an inclined position and thus make better use of the flow, for example, to accelerate in upstages, at the entrance to the sweeping water or at the exit into the main flow. For example, higher efficiency in using hydropower when edge-up is achieved. The acceleration takes place in the desired direction, with reduced lateral drift. Due to the design of the edge, a better flow behavior of the boat, higher stability when cornering by fin effect is achieved when edge up.

Mit Hilfe des erfindungsgemäßen Designs werden im Ergebnis größere Geschwindigkeiten und schnellere Fahrzeiten insbesondere im Kanu-Slalom-Sport erreicht.As a result of the design according to the invention, greater speeds and faster travel times are achieved, in particular in canoe slalom sports.

Auch wenn in dieser Anmeldung meist von Kanus die Rede ist, sollen stets auch andere Kategorien von Paddelbooten umfasst sein wie Canadier, Canadier Zweier, Kajak oder Flusskajak. Entsprechend der Anzahl der Insassen haben die Boote mehr als eine Sitzluke. Der Bereich der Sitzluke ist dann im Rahmen der Erfindung der Bereich, der sich entlang der vorhandenen Sitzluken erstreckt.Although in this application mostly of canoes is mentioned, should always include other categories of paddle boats include Canadier, Canadier twosome, kayak or river kayak. According to the number of occupants, the boats have more than one seat hatch. The area of the seat hatch is then within the scope of the invention, the area which extends along the existing seat hatches.

Der niedrigste Punkt der Naht bzw. der Kante kann etwa auf Höhe der bestimmungsgemäßen Wasserlinie liegen. Insbesondere liegt dieser Punkt ein einer Ebene im Bereich einer vorderen Sitzkante eines im Boot vorgesehenen Sitzes.The lowest point of the seam or the edge can be approximately at the level of the intended waterline. In particular, this point lies on a plane in the region of a front seat edge of a seat provided in the boat.

Der niedrigste Punkt der Naht kann außerdem in Längsrichtung etwa in einer durch den senkrechten Querschnitt verlaufenden Ebene liegen, die etwa durch den Schwerpunkt des Boots verläuft.The lowest point of the seam may also lie longitudinally approximately in a plane passing through the vertical cross-section which extends approximately through the center of gravity of the boat.

Das Unterschiff weist vorzugsweise in einem horizontalen Querschnitt im Bereich der Sitzluke eine maximale Breite (Sollbreite) auf. D.h. in einer besonderen Ausführungsform liegen die Sollbreite (breiteste Breite) des Bootes, der Schwerpunkt und/oder der niedrigste Punkt der Naht in einer definierten senkrechten Ebene. Die Sollbreite des erfindungsgemäßen Bootes liegt tiefer und weiter vorne als bei herkömmlichen Booten derselben Art. Der senkrechte Querschnitt durch die maximale Breite des Unterschiffs in Längsrichtung verläuft insbesondere etwa durch den Schwerpunkt des Bootes.The lower hull preferably has a maximum width (nominal width) in a horizontal cross section in the region of the seat hatch. That In a particular embodiment, the desired width (widest width) of the boat, the center of gravity and / or the lowest point of the seam lie in a defined vertical plane. The nominal width of the boat according to the invention is lower and further forward than in conventional boats of the same type. The vertical cross section through the maximum width of the lower vessel in the longitudinal direction extends in particular approximately through the center of gravity of the boat.

Der Bootskörper kann die maximale Breite in einem senkrechten Querschnitt auf Höhe der bestimmungsgemäßen Wasserlinie aufweisen.The hull may have the maximum width in a vertical cross-section at the level of the intended waterline.

Der Bootskörper kann die maximale Breite in einer durch den niedrigste Punkt der Naht verlaufenden senkrechten Ebene eine maximale Breite aufweisen.The hull may have a maximum width in a maximum width in a vertical plane passing through the lowest point of the seam.

Der Bootskörper weist die maximale Breite insbesondere in einem senkrechten Querschnitt auf Höhe der bestimmungsgemäßen Wasserlinie aufweist. Die Bestimmung der Breite erfolgt dabei etwa auf Höhe der bestimmungsgemäßen Wasserlinie. Die Sollbreite liegt zudem vorzugsweise in der Mitte des Carving Radius. Während der Kurvenfahrt reicht der Bereich der Kante um den Schwerpunkt aufgekantet ca. 5 cm weiter unter die Wasserlinie als bei herkömmlichen Slalom-Kajaks. Dadurch ist der Tiefgang größer. Am Schwerpunkt in nicht aufgekanteter Stellung befindet sich ein größeres Volumenunter Wasser und es wird mehr Auftrieb erzeugt.The hull has the maximum width, in particular in a vertical cross-section at the level of the intended waterline. The determination of the width is carried out approximately at the level of the intended waterline. The desired width is also preferably in the middle of the carving radius. While cornering, the area of the edge around the center of gravity extends upwards approx. 5 cm below the waterline than in conventional slalom kayaks. This increases the draft. At the center of gravity in the unfolded position there is a larger volume of water and more buoyancy is created.

Insbesondere können das Unterschiff und/oder das Oberdeck aus einem Faserverbundwerkstoff, insbesondere aus kohlenstofffaserverstärktem Kunststoff, und/oder einem Leichtbauwerkstoff auf Hanfbasis bestehen. Letztere Option ist umweltfreundlich, da der Leichtbauwerkstoff nicht erdölbasierend ist, sondern auf Basis nachwachsender Rohstoffe hergestellt wird. Als Faser, die für die Festigkeit sorgt, wird gewebtes Hanfgarn, als Matrix aus Harz wird Hanfsamenöl eingesetzt. Eine weitere Materialalternative für Unterschiff und/oder Oberdeck ist Polyethylen.In particular, the lower hull and / or the upper deck can consist of a fiber composite material, in particular of carbon fiber reinforced plastic, and / or a lightweight material based on hemp. The latter option is environmentally friendly because the lightweight material is not petroleum-based, but is produced on the basis of renewable resources. Woven hemp yarn is used as the fiber that provides the strength, while hemp seed oil is used as the resin matrix. Another material alternative for the lower and / or upper deck is polyethylene.

Der Bootskörper kann in einem horizontalen Querschnitt Tropfenform aufweisen. Dies bedeutet, dass im vorderen Teil des Unterschiffs ein breitester Bereich ausgebildet ist, wobei sich die Breite des Bootskörpers nach hinten hin verjüngt.The hull may have a teardrop shape in a horizontal cross section. This means that in the front part of the lower vessel, a widest range is formed, wherein the width of the hull is tapered towards the rear.

Vorzugsweise kann das Unterschiff eine Laufrille aufweisen. Diese kann sich insbesondere etwa vom Bug nach hinten bis zur Sitzposition des Paddlers erstrecken. Die Laufrille (eine Vertiefung im Rumpf) sorgt für eine bessere Statik im vorderen Rumpf bei einer geraden Fahrt und verhindert ein Pendeln.Preferably, the lower hull may have a track groove. This can extend in particular from about the bow to the rear to the seating position of the paddler. The track groove (a groove in the fuselage) provides better static in the front fuselage in a straight ride and prevents commuting.

KURZE BESCHREIBUNG DER FIGURENBRIEF DESCRIPTION OF THE FIGURES

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels anhand der Figuren. Es zeigen:

  • Figur 1 eine seitliche Ansicht eines erfindungsgemäßen Kajaks;
  • Figur 2 eine Draufsicht auf das Kajak aus Figur 1;
  • Figur 3 eine Schnittansicht eines im Wasser liegenden erfindungsgemäßen Kajaks im Vergleich zu einem herkömmlichen Kajak in einer Normalposition (Geradeausfahrt);
  • Figur 4 eine Schnittansicht eines im Wasser liegenden erfindungsgemäßen Kajaks mit Paddler im Vergleich zu einem herkömmlichen Kajak in einer Normalposition (Geradeausfahrt);
  • Figur 5 eine Schnittansicht eines im Wasser liegenden erfindungsgemäßen Kajaks im Vergleich zu einem herkömmlichen Kajak in einer seitlich aufgekanteten Position (Kurvenfahrt);
Further features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to FIGS. Show it:
  • FIG. 1 a side view of a kayak according to the invention;
  • FIG. 2 a top view of the kayak FIG. 1 ;
  • FIG. 3 a sectional view of a kayak according to the invention in the water compared to a conventional kayak in a normal position (straight ahead);
  • FIG. 4 a sectional view of an in-water kayak according to the invention with paddler compared to a conventional kayak in a normal position (straight ahead);
  • FIG. 5 a sectional view of a kayak according to the invention in the water compared to a conventional kayak in a laterally folded position (cornering);

BESCHREIBUNG EINES BEVORZUGTEN AUSFÜHRUNGSBEISPIELSDESCRIPTION OF A PREFERRED EMBODIMENT

In der Figur 1 ist eine Seitenansicht eines erfindungsgemäßen Slalom-Kajaks 1 dargestellt. Es besteht im Wesentlichen aus einem Unterschiff 2 (Rumpf) und einem Oberdeck 3, das etwa eine Abdeckung bildet. Beide Komponenten sind beispielsweise aus Faserverbundwerkstoff, insbesondere aus kohlenstofffaserverstärktem Kunststoff, und/oder einem leichtbauwerkstoff auf Hanfbasis und/oder Polyethylen hergestellt. Im Oberdeck 3 befindet sich eine Sitzluke 4. Der Pfeil F gibt die vorgesehene Fahrtrichtung an. Diese Richtung entspricht auch der Blickrichtung eines Insassen.In the FIG. 1 a side view of a slalom kayak 1 according to the invention is shown. It consists essentially of a lower hull 2 (hull) and an upper deck 3, which forms approximately a cover. Both components are for example made of fiber composite material, in particular of carbon fiber reinforced plastic, and / or a lightweight construction material based on hemp and / or polyethylene. In the upper deck 3 there is a seat hatch 4. The arrow F indicates the intended direction of travel. This direction also corresponds to the line of sight of an occupant.

Erfindungsgemäß weist das Boot 1 eine wenigstens im Bereich der Sitzluke 4 nach unten zur Wasseroberfläche hin ausgewölbte bzw. gekrümmte Kante 5 zwischen Unterschiff 2 und Oberdeck 3 auf. Diese bildet eine konvexe Kante 5 mit einem Tiefpunkt 50, der in einer senkrecht zu einer Längsachse ausgerichteten Ebene S liegt, die das Boot 1 in etwa auf Höhe der vorderen Sitzkante des Sitzes schneidet. Der Tiefpunkt 50 liegt bei gerader Ausrichtung des Bootes 1 in etwa auf Höhe des Wasserspiegels.According to the invention, the boat 1 has a curved or curved edge 5 between the lower hull 2 and the upper deck 3 at least in the region of the seat hatch 4 down to the water surface. This forms a convex edge 5 with a low point 50 which lies in a direction perpendicular to a longitudinal axis plane S, which intersects the boat 1 approximately at the level of the front seat edge of the seat. The low point 50 is in straight alignment of the boat 1 at about the level of the water level.

Durch die Kante 5 wird beim Eintauchen derselben in das Wasser bei Schrägausrichtungen des Kajaks 1 ein Carving Effekt bei Kurvenfahrten ermöglicht. Befindet sich der "Carving Radius" unter dem Wasserspiegel, kann in der Kurve eine klare Linie gehalten werden. Das Boot 1 fährt selbstständig eine Kurve entsprechend der Geometrie der eingetauchten Kante 5.By the edge 5 is a carving effect when cornering when immersing the same in the water in oblique orientations of the kayak 1 allows. If the "carving radius" is below the water level, a clear line can be kept in the curve. The boat 1 autonomously travels a curve according to the geometry of the submerged edge 5.

Insbesondere liegt auch, wie aus der Draufsicht auf das Boot 1 gemäß Figur 2 hervorgeht, der Schwerpunkt SP in der Ebene S, die in etwa entlang der vorderen Kante des Sitzes 40 verläuft. Auf Höhe dieser Ebene S weist das Boot 1, außerdem -auf Höhe des Tiefpunkts 50 der Krümmung 5-eine Sollbreite B (größte Breite B verglichen mit allen senkrechten Schnitten S entlang der und senkrecht zur Längsachse L) auf. Dadurch, dass die Sollbreite B etwas nach vorne gerückt ist, hat das Boot in der Draufsicht eine Art Tropfenform.In particular, as is apparent from the plan view of the boat 1 according to FIG. 2 As can be seen, the center of gravity SP in the plane S, which runs approximately along the front edge of the seat 40. On Height of this plane S, the boat 1, also at the height of the low point 50 of the curvature 5-a target width B (largest width B compared with all vertical sections S along and perpendicular to the longitudinal axis L) on. Due to the fact that the nominal width B has moved somewhat forward, the boat has a kind of teardrop shape in plan view.

Die Effekte sind auch in der linken Schnittdarstellung eines erfindungsgemäßen Kajaks 1 gemäß Figur 3 dargestellt. Während in der rechten Darstellung eines herkömmlichen Boots 1'die Naht zwischen Unterschiff 2' und Oberdeck 3' relativ hoch liegt und die Kante 5' gerade und parallel zur Wasseroberfläche verläuft, liegt der Im Schnitt S dargestellte tiefste Punkt 50 der entlang der Länge L des Bootes 1 gekrümmten Kante 5 wesentlich tiefer und auch die Sollbreite liegt wesentlich tiefer als beim herkömmlichen Boot 1'. Die Kante 5 ist dabei als der äußerste Punkt des Bootskörpers 2,3 definiert und bildet in der Regel die Naht zwischen Unterschiff 2 und Oberdeck 3.The effects are also shown in the left sectional view of a kayak 1 according to the invention FIG. 3 shown. While in the right-hand illustration of a conventional boat 1 'the seam between the lower hull 2' and the upper deck 3 'is relatively high and the edge 5' is straight and parallel to the water surface, the lowest point 50 shown in the section S lies along the length L of the Boat 1 curved edge 5 much deeper and also the target width is much lower than in the conventional boat 1 '. The edge 5 is defined as the outermost point of the hull 2.3 and usually forms the seam between the lower hull 2 and upper deck. 3

In Normallage des erfindungsgemäßen Bootes 1 ist mehr Volumen im Unterschiff und damit wird mehr Auftrieb erzeugt.In normal position of the boat according to the invention 1 more volume in the lower vessel and thus more buoyancy is generated.

In der Figur4 ist links eine Ansicht des erfindungsgemäßen Bootes 1 von vorne mit einem Insassen F und rechts eine entsprechende Ansicht eines herkömmlichen Bootes 1' mit einem Insassen F', jeweils in der Vorwärtsfahrt dargestellt. Dabei liegt der Tiefpunkt 50 auf Wasserniveau W und die Kante 5 befindet sich etwa auf bzw. wenig oberhalb des Wasserspiegels W.In the Figur4 left is a view of the boat 1 according to the invention from the front with an occupant F and right a corresponding view of a conventional boat 1 'with an occupant F', each shown in the forward drive. In this case, the low point 50 is at water level W and the edge 5 is located approximately at or slightly above the water level W.

Im Vergleich wird deutlich, dass der Insasse F des erfindungsgemäßen Bootes 1 wesentlich ergonomischer paddeln kann als der Insasse F' des Bootes 1', da die Kante 5 tiefer liegt, und das Oberdeck 30 im Bereich des senkrechten Schnitts S somit zum Lukenrand der Luke 4 hin schräg und zur Mittelachse L hin steiler ansteigend als beim herkömmlichen Boot 1'verläuft (der Steigungswinkel beträgt beim Boot 1 ca. 60°, beim Boot 1' höchstens die Hälfte davon). Dadurch ist es einfacher, das Paddel P schräg nach unten ins Wasser zu führen. Die Sollbreite des Bootes 1 auf Wasserniveau W ist etwas größer als beim herkömmlichen Boot 1'.In comparison, it is clear that the occupant F of the inventive boat 1 can paddle much more ergonomically than the occupant F 'of the boat 1', since the edge 5 is lower, and the upper deck 30 in the region of the vertical section S thus to the hatch edge of the hatch. 4 sloping and towards the central axis L steeper rising than the conventional boat 1'verläuft (the pitch angle is at boat 1 about 60 °, the boat 1 'at most half of it). This makes it easier to guide the paddle P diagonally down into the water. The nominal width of the boat 1 at water level W is slightly larger than in the conventional boat 1 '.

Im Unterschiff 2 ist wenigstens zwischen Bug und etwa dem Sitzbereich eine Laufrille 20 ausgebildet, die die Statik im vorderen Rumpfbereich verbessert und ein Pendeln verhindert.In the lower hull 2, a running groove 20 is formed at least between the bow and the seating area approximately, which improves the statics in the front fuselage area and prevents oscillation.

Die Figur 5 zeigt die beiden Boote 1,1' aus Figur 4 in einer Schrägstellung, etwa bei der Ausfahrt aus einem Aufwärtstor eines Slalomkurses. Die Kante 5 kann in der Schräglage tiefer in das Wasser eintauchen und so die Strömung besser nutzen, um z.B. in Aufwärtstoren, bei der Einfahrt ins Kehrwasser bzw. bei der Ausfahrt in die Haupt-Strömung zu beschleunigen. Während der Kurvenfahrt reicht der Bereich der Kante 50 um den Schwerpunkt SP aufgekantet ca. 5 cm weiter unter die Wasserlinie W als beim herkömmlichen Slalom-Kajak 1'. Im Ergebnis werden weniger seitliche Drift, eine starke Beschleunigung und damit schnellere Fahrzeiten erzielt.The FIG. 5 shows the two boats 1,1 'off FIG. 4 in an incline position, such as when exiting from an upward gateway to a slalom course. The edge 5 can dive deeper into the water in the inclined position and thus make better use of the flow, for example, to accelerate in up-grades, at the entrance to the sweeping water or at the exit into the main flow. During cornering, the area of the edge 50 extends about the center of gravity SP tilted about 5 cm further below the waterline W than the conventional slalom kayak 1 '. As a result, less lateral drift, a strong acceleration and thus faster travel times are achieved.

Claims (10)

Boot (1), insbesondere Paddelboot (Kanu oder Kajak), insbesondere ein Slalom-Kajak, umfassend einen Bootskörper mit einem Unterschiff (2) und einem Oberdeck (3) sowie einer im Oberdeck (3) ausgebildeten Sitzluke (4), wobei sich das Unterschiff (2) in einem horizontalen Querschnitt vom vorderen Ende und vom hinteren Ende jeweils zum Bereich der Sitzluke (4) hin verbreitert, dadurch gekennzeichnet, dass
die Naht zwischen Unterschiff (2) und Oberdeck (3) wenigstens im Bereich der Sitzluke (4) durch eine Kante (5) gebildet ist, die in einer Seitenansicht des Bootskörpers wenigstens im Bereich der Sitzluke (4) zur Wasseroberfläche hin konvex gekrümmt ist.Boat (1), in particular a paddle boat (canoe or kayak), in particular a slalom kayak comprising a hull with a lower hull (2) and an upper deck (3) and a seat hatch (4) formed in the upper deck (3) Submarine (2) widened in a horizontal cross section from the front end and the rear end in each case to the region of the seat hatch (4), characterized in that
the seam between the lower hull (2) and the upper deck (3) is formed at least in the region of the seat hatch (4) by an edge (5) which is convexly curved towards the water surface in a side view of the hull at least in the region of the seat hatch (4). Boot (1) nach Anspruch 1, dadurch gekennzeichnet, dass der niedrigste Punkt (50) der Kante (5) etwa auf Höhe der bestimmungsgemäßen Wasserlinie (W) liegt.Boat (1) according to claim 1, characterized in that the lowest point (50) of the edge (5) lies approximately at the level of the intended waterline (W). Boot (1) nach einem dervorhergehenden Ansprüche, dadurch gekennzeichnet, dass der niedrigste Punkt (50) der Kante (5) in Längsrichtung etwa in einer durch den senkrechten Querschnitt verlaufenden Ebene (S) liegt, die etwa durch den Schwerpunkt (SP) des Bootes verläuft.Boat (1) according to any one of the preceding claims, characterized in that the lowest point (50) of the edge (5) lies longitudinally approximately in a plane (S) running through the vertical cross-section, approximately through the center of gravity (SP) of the boat runs. Boot (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Bootskörper (2, 3) in einem horizontalen Querschnitt im Bereich der Sitzluke (4) eine maximale Breite (B) aufweist.Boat (1) according to one of the preceding claims, characterized in that the hull (2, 3) in a horizontal cross-section in the region of the seat hatch (4) has a maximum width (B). Boot (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Bootskörper (2, 3) die maximale Breite (B) in einem senkrechten Querschnitt (S) auf Höhe der bestimmungsgemäßen Wasserlinie (W) aufweist.Boat (1) according to one of the preceding claims, characterized in that the hull (2, 3) has the maximum width (B) in a vertical cross section (S) at the level of the intended waterline (W). Boot (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Bootskörper (2, 3) in einer durch den niedrigsten Punkt (50) der Kante (5) verlaufenden senkrechten Ebene (S) eine maximale Breite (B) aufweist.Boat (1) according to any one of the preceding claims, characterized in that the hull (2, 3) has a maximum width (B) in a vertical plane (S) passing through the lowest point (50) of the edge (5). Boot (1) nach Anspruch 5, dadurch gekennzeichnet, dass der senkrechte Querschnitt (S) durch die maximale Breite (B) des Bootskörpers (2, 3) in Längsrichtung etwa durch den Schwerpunkt (SP) des Bootes verläuft.Boat (1) according to claim 5, characterized in that the vertical cross-section (S) through the maximum width (B) of the hull (2, 3) extends longitudinally approximately through the center of gravity (SP) of the boat. Boot (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Unterschiff (2) und/oder das Oberdeck (3) aus einem Faserverbundwerkstoff, insbesondere aus kohlenstofffaserverstärktem Kunststoff, und/oder einem Leichtbauwerkstoff auf Hanfbasis und/oder aus Polyethylen besteht.Boat (1) according to one of the preceding claims, characterized in that the lower hull (2) and / or the upper deck (3) consists of a fiber composite material, in particular of carbon fiber reinforced plastic, and / or a lightweight material based on hemp and / or polyethylene. Boot (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Bootskörper (2,3) in einem horizontalen Querschnitt in etwa eine Tropfenform aufweist.Boat (1) according to any one of the preceding claims, characterized in that the hull (2,3) in a horizontal cross section in approximately a teardrop shape. Boot (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Unterschiff (2) eine Laufrille (20) aufweist.Boat (1) according to one of the preceding claims, characterized in that the lower hull (2) has a running groove (20).
EP16187209.8A 2016-01-12 2016-09-05 Carving kayak Active EP3192733B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA7/2016A AT518240A2 (en) 2016-01-12 2016-01-12 kayak

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EP3192733B1 EP3192733B1 (en) 2018-12-12

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2206061A1 (en) * 1997-06-06 1998-12-06 Rivest, Jean-Francois Kayak with non-suction hull
WO2006014702A2 (en) * 2004-07-21 2006-02-09 Masters William E Kayak with increased stability and control
FR2988685A1 (en) * 2012-03-28 2013-10-04 Vajda Group S R O Composite material based sports or pleasure boat e.g. canoe, has reinforcement beams formed along longitudinal axis of front and rear parts of bridge and hull, respectively, where bridge and hull are obtained by curing resin matrix

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2206061A1 (en) * 1997-06-06 1998-12-06 Rivest, Jean-Francois Kayak with non-suction hull
WO2006014702A2 (en) * 2004-07-21 2006-02-09 Masters William E Kayak with increased stability and control
FR2988685A1 (en) * 2012-03-28 2013-10-04 Vajda Group S R O Composite material based sports or pleasure boat e.g. canoe, has reinforcement beams formed along longitudinal axis of front and rear parts of bridge and hull, respectively, where bridge and hull are obtained by curing resin matrix

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AT518240A2 (en) 2017-08-15

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