CA2206061A1 - Kayak with non-suction hull - Google Patents

Kayak with non-suction hull

Info

Publication number
CA2206061A1
CA2206061A1 CA002206061A CA2206061A CA2206061A1 CA 2206061 A1 CA2206061 A1 CA 2206061A1 CA 002206061 A CA002206061 A CA 002206061A CA 2206061 A CA2206061 A CA 2206061A CA 2206061 A1 CA2206061 A1 CA 2206061A1
Authority
CA
Canada
Prior art keywords
kayak
flat surface
lap
hull
letter
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.)
Abandoned
Application number
CA002206061A
Other languages
French (fr)
Inventor
Corran Addison
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.)
RIVEST JEAN FRANCOIS
Original Assignee
RIVEST JEAN FRANCOIS
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 RIVEST JEAN FRANCOIS filed Critical RIVEST JEAN FRANCOIS
Priority to CA002206061A priority Critical patent/CA2206061A1/en
Publication of CA2206061A1 publication Critical patent/CA2206061A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B34/00Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
    • B63B34/20Canoes, kayaks or the like
    • B63B34/21Canoes, kayaks or the like characterised by constructional features
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/04Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Eyeglasses (AREA)

Description

La présente invention se rapporte au design d'un modèle de kayak de rivière. La coque du kayak est plate et munie d'un disque ou d'une surface plane avec des arêtes vives. Ces éléments combinés permettent d'éliminer la résistance ou la succion de l'eau sous la coque du dit kayak.
En élimin~nt cette résistance de l'eau, le kayak peut alors permettre au kayakiste de faire des manoeuvres qui étaient jusqu'alors impossibles voir meme impensables à exécuter en eau vive .

Il est d'usage courant dans un kayak de rivière d'avoir un giron . Le giron se calcule en hauteur à
partir de la base du kayak jusqu'à la pointe du kayak. Dans un kayak traditionnel, le giron est progressif. C'est-à-dire qu'il prend son origine au centre du dessous du kayak et part en pente douce jusqu'aux extrémités. Le giron est utile, car il permet aux deux extrémités du kayak, soient la pointe avant et la pointe arrière de sortir hors de l'eau et par conséquent il assure une bonne flottabilité. Le giron progressif offre peu de surfaces planes à l'eau et le kayak est ainsi plus submergé en son centre . En étant plus enfoncé dans l'eau, il offre donc plus de résistance dans l'eau et il est alors plus difficile de faire des manoeuvres acrobatiques. De plus, tous les kayaks, jusqu'à ce jour ont le bouchain arrondi. Le bouchain est la transition entre la coque du dessous et le franc bord du kayak. Le franc bord du kayak représente les deux côtés longit~l(lin~llx du kayak.
Une transition ronde et sans arête du bouchain lui apporte énormément de succion dans le courant. Donc, le kayak est difficile à manoeuvrer lorsqu'il s'agit de faire des figures acrobatiques sur des vagues en eau vive.
Ces deux éléments combinés ensemble soient un giron progressif et un bouchain rond rendent le kayak non optimal pour le kayakiste qui souhaite exécuter des manoeuvres acrobatiques en eau vive.

J'ai découvert qu'une embarcation ou un kayak peut être amélioré en supprimant la courbure progressive du giron et le bouchain rond par l'augmentation de la surface plane avec l'ajout d'une arête à angle droit qui ceinture la surface plane, appelée le disque. Une arête est définie comme la ligne d'intersection de deux plans. L'objectif de mon invention est d'avoir le maximum de giron aux extrémités pour obtenir une surface quasi plane.
Le giron se calcule à partir du point le plus bas sous le kayak jusqu'à l'une de ses extrémités. Par exemple, un kayak qui a un giron de 20 cm aura la pointe élevée de 20 cm par rapport au point le plus bas en dessous de la coque.
Le disque ou la surface plane du kayak comprend moins de 25% du giron total du kayak. La longueur de la surface plane est de 50% à 80% de la longueur totale du kayak, donc un kayak qui a 275 cm a entre 137 cm et 220 cm de surface plane. Donc avec une surface quasi plane, la coque offre beaucoup plus de surface de flottabilité au kayak. En offrant plus de surface de flottabilité, le kayak enfonce moins dans l'eau. Le kayak accélère plus vite sur les vagues ce qui lui donne un momentum pour exécuter des manoeuvres. De plus, il est beaucoup plus rapide pour sa longueur si on le compare à un autre kayak avec un giron progressif, car sa ligne d'eau est plus longue.

De plus, dans mon invention, le bouchain est composé de parties plates. La jonction de deux parties plates dans un bouchain s'appelle une arête. L'ajout d'une arête est détermin~nt, car c'est lui qui vient briser la tension ou la succion de l'eau sous la coque du kayak. En élimin~nt cette succion, le kayak devient très léger et maniable et permet d'exécuter des manoeuvres qui étaient jusqu'à ce jour impossibles à réaliser. Nous pouvons avoir un à plusieurs carres dans un bouchain. L'ajout de plusieurs carres rend le kayak plus prévisible mais l'ajout d'une seule arête le rend plus performant. Ce qui est essentiel, c'est le rayon de courbure des carres qui se situent entre 1/32 et 1/8 de pouces de rayon.

Donc les 75% du giron total du kayak se retrouvent à l'extérieur du disque ou de la surface plane.
Et ces 75% du giron sont compris dans 40% de la longueur totale du kayak dont 20% à l'avant de la coque et 20% à l'arrière de la coque . Par exemple un kayak de 275 cm de long avec un giron de 20 cm de hauteur a 15 cm de giron compris dans le dernier 55 cm de sa pointe avant ou arrière.

La figure 1 représente la vue de profil du kayak. Le giron total du kayak est illustré par la lettre A.
Le giron de la surface plane est illustré par la lettre B. Ce dernier représente moins de 25% du giron total. La lettre C indique le giron de la surface à l'extérieur du disque ou de la surface plane.

Dans la figure 2, la lettre C indique le giron qui est à l'extérieur de la partie plane ou du disque soit 75% du giron total qui est situé au maximum dans le dernier 25% de la longueur du kayak peu importe la longueur du kayak ou la hauteur du giron. La lettre D représente la longueur du disque ou de la surface plane qui est de 54,04 pouces. La lettre E représente la longueur totale du kayak soit de 96 pouces. Finalement, la lettre F indique les deux parties extérieures du disque ou de la surface plane du kayak.

La figure 3 représente la coque du dessous vue en plan. Nous pouvons voir que le disque ou la surface plane représente entre 50% et 80% de la longueur totale du kayak, et ce peu importe la longueur totale du kayak.

La figure 4 montre une vue de coupe de deux tranches transversales du kayak (1 et 2). La lettre G
correspond au franc bord. La lettre H nous montre bien l'arête qui fait la jonction entre la coque du dessous et le franc bord du kayak.
The present invention relates to the design of a model of river kayak. The hull of the kayak is flat and has a disc or a flat surface with sharp edges. These elements combined to eliminate resistance or suction of water under the hull of said kayak.
By eliminating this resistance from the water, the kayak can then allow the kayaker to make maneuvers that were previously impossible or even unthinkable to perform in whitewater.

It is common practice in a river kayak to have a lap. The lap is calculated in height at from the base of the kayak to the tip of the kayak. In a traditional kayak, the lap is progressive. That is, it originates in the center of the underside of the kayak and slopes soft to the ends. The fold is useful because it allows both ends of the kayak, either the front tip and the rear tip come out of the water and therefore it ensures good buoyancy. The progressive fold offers few flat surfaces in the water and the kayak is more submerged in its center. By being deeper in the water, it therefore offers more resistance in water and it is more difficult to perform acrobatic maneuvers. In addition, all kayaks, to date have the rounded chine. The chine is the transition between the shell below and the freeboard of the kayak. The freeboard of the kayak represents the two sides longit ~ l (lin ~ llx of the kayak.
A round and seamless transition from the bouchain gives it a lot of suction in the current. So kayaking is difficult to maneuver when it comes to acrobatic tricks on whitewater waves.
These two elements combined together are a progressive fold and a round chine make the kayak not optimal for the kayaker who wishes to perform acrobatic maneuvers in water lively.

I discovered that a boat or kayak can be improved by removing the curvature progressive fold and round chine by increasing the flat surface with the addition of a right-angled edge which surrounds the flat surface, called the disc. An edge is defined as the line of intersection of two planes. The objective of my invention is to have the maximum of fold at the ends to obtain an almost flat surface.
The lap is calculated from the lowest point under the kayak to one of its ends. By example, a kayak that has a 20 cm lap will have the point 20 cm high from the point lower below the hull.
The kayak's disc or flat surface comprises less than 25% of the kayak's total lap. The length of the flat surface is 50% to 80% of the total length of the kayak, so a kayak that at 275 cm has between 137 cm and 220 cm of flat surface. So with an almost flat surface, the hull provides much more buoyancy to the kayak. By offering more buoyancy surface, the kayak sinks less in the water. The kayak accelerates faster on the waves which gives it a momentum to execute maneuvers. In addition, it is much faster for its length if we compare it to another kayak with a progressive fold, because its water line is longer.

In addition, in my invention, the chine is composed of flat parts. The junction of two flat parts in a chine are called an edge. The addition of an edge is determ ~ nt, because it is he who breaks the tension or the suction of the water under the hull of the kayak. By eliminating this suction, the kayak becomes very light and handy and allows to execute maneuvers that were impossible to date. We can have one to several edges in one bilge. The addition of several edges makes the kayak more predictable but the addition of a single edge makes it more efficient. What is essential is the radius of curvature of the edges which are located between 1/32 and 1/8 of an inch in radius.

So the 75% of the kayak's total lap is found outside the disc or the flat surface.
And this 75% of the lap is included in 40% of the total length of the kayak, including 20% at the front of the hull and 20% aft of the hull. For example a 275 cm long kayak with a lap from 20 cm in height to 15 cm of fold included in the last 55 cm of its front or rear point.

Figure 1 shows the side view of the kayak. The total lap of the kayak is illustrated by the letter A.
The fold of the flat surface is illustrated by the letter B. This represents less than 25% of the total lap. The letter C indicates the lap of the surface outside the disc or the flat surface.

In figure 2, the letter C indicates the tread which is outside the flat part or the disc or 75% of the total lap which is located at most in the last 25% of the length of the kayak regardless of the length of the kayak or the height of the lap. The letter D represents the length of the disc or flat surface that is 54.04 inches. The letter E represents the total length of the kayak is 96 inches. Finally, the letter F indicates the two outer parts of the disc or from the flat surface of the kayak.

Figure 3 shows the hull below seen in plan. We can see that the disc or the flat surface represents between 50% and 80% of the total length of the kayak, regardless of the total length of the kayak.

Figure 4 shows a sectional view of two cross sections of the kayak (1 and 2). The letter G
corresponds to the freeboard. The letter H shows us the edge that makes the junction between the shell from below and the freeboard of the kayak.

Claims (3)

Les réalisations de l'invention au sujet desquelles un droit exclusif de propriété ou de privilège est revendiqué, sont définies comme suit: The realizations of the invention in respect of which an exclusive right of ownership or privilege is claimed, are defined as follows: 1 Le principe de concentrer la majorité du giron dans les extrémités d'une embarcation en eau vive, et plus spécifiquement d'un kayak de rivière. 1 The principle of concentrating the majority of the belly in the extremities of a white water boat, and more specifically a river kayak. 2 Le principe, tel qu'il est défini dans la revendication 1, dans le but d'obtenir une surface quasi-plane. 2 The principle, as defined in claim 1, in order to obtain a almost flat surface. 3 Le principe, tel qu'il est défini dans la revendication 1 ou 2, combiné avec une arête vive qui délimite la coque de l'embarcation avec son franc-bord. 3 The principle, as defined in claim 1 or 2, combined with a sharp edge that delimits the hull of the boat with its freeboard.
CA002206061A 1997-06-06 1997-06-06 Kayak with non-suction hull Abandoned CA2206061A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002206061A CA2206061A1 (en) 1997-06-06 1997-06-06 Kayak with non-suction hull

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002206061A CA2206061A1 (en) 1997-06-06 1997-06-06 Kayak with non-suction hull

Publications (1)

Publication Number Publication Date
CA2206061A1 true CA2206061A1 (en) 1998-12-06

Family

ID=4160730

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002206061A Abandoned CA2206061A1 (en) 1997-06-06 1997-06-06 Kayak with non-suction hull

Country Status (1)

Country Link
CA (1) CA2206061A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726522A1 (en) * 2005-05-27 2006-11-29 Struer Kajak A/S A kayak
ES2351559A1 (en) * 2008-04-25 2011-02-08 Juan Luis Amilibia Indo Boat. (Machine-translation by Google Translate, not legally binding)
ES2397399R1 (en) * 2011-05-25 2013-03-22 Indo Juan Luis Amilibia Enhanced Boat
EP3192733A1 (en) * 2016-01-12 2017-07-19 Eduard Wolffhardt Carving kayak

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726522A1 (en) * 2005-05-27 2006-11-29 Struer Kajak A/S A kayak
WO2006125445A1 (en) * 2005-05-27 2006-11-30 Struer Kajak A/S A kayak
ES2351559A1 (en) * 2008-04-25 2011-02-08 Juan Luis Amilibia Indo Boat. (Machine-translation by Google Translate, not legally binding)
ES2397399R1 (en) * 2011-05-25 2013-03-22 Indo Juan Luis Amilibia Enhanced Boat
EP3192733A1 (en) * 2016-01-12 2017-07-19 Eduard Wolffhardt Carving kayak

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued