EP1274622B1 - Water craft propelled by a double-flipper device actuated by a pedal mechanism - Google Patents
Water craft propelled by a double-flipper device actuated by a pedal mechanism Download PDFInfo
- Publication number
- EP1274622B1 EP1274622B1 EP01925642A EP01925642A EP1274622B1 EP 1274622 B1 EP1274622 B1 EP 1274622B1 EP 01925642 A EP01925642 A EP 01925642A EP 01925642 A EP01925642 A EP 01925642A EP 1274622 B1 EP1274622 B1 EP 1274622B1
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- EP
- European Patent Office
- Prior art keywords
- aquatic
- tubes
- rods
- crank gear
- lateral
- 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.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H16/00—Marine propulsion by muscle power
- B63H16/08—Other apparatus for converting muscle power into propulsive effort
- B63H16/12—Other apparatus for converting muscle power into propulsive effort using hand levers, cranks, pedals, or the like, e.g. water cycles, boats propelled by boat-mounted pedal cycles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/30—Propulsive elements directly acting on water of non-rotary type
- B63H1/36—Propulsive elements directly acting on water of non-rotary type swinging sideways, e.g. fishtail type
Definitions
- the present invention relates to an aquatic propulsion device suitable for a tray such as described in the preamble of claim 1.
- a device is described in the document GB 227 241. More specifically, the present invention relates to a rigid or goriflable nautical vehicle propelled by a two-blade device.
- This device is actuated by a pedal with hollow branches and totally submerged discoid shape whose axis is connected to a mechanism that drives a regular and continuous wave movement with two rods each sliding in a tube supporting aquatic fins which carry out, by transmission of the aforementioned movement, a beat, in the same vertical plane, in parallel and opposite direction.
- Nautical devices of this type traditionally include a floating support, which can be assimilated to a pole, on which the user is strapped which can, in the event of overturning abrupt, present a danger to said user.
- the protruding parts of these devices can also present a danger, in agitated aquatic environment, to swimmers who are near.
- Corresponding propulsion systems of the same kind including a pedal and a fully immersed mono or bipal device are produced, either on the principle of a scull moved by a pedal with rectilinear action, or by aquatic fins attached directly to the pedals themselves.
- the effort required to produce a back and forth movement of the pedals is important; in the second case, the propelling effect of the fins is lessened due to an elliptical beat and not in the opposite direction, carried out in the same vertical plane, like that carried out by humans and recognized as the most efficient.
- the nautical device according to the invention overcomes these drawbacks.
- the float includes a rigid or inflatable float, all or part associated with a propulsion system bipalme actuated by a pedal with branches of discoidal shape and whose pedals also include adequate soft protection.
- the float with rounded shapes, is hollowed out at its rear to allow the user to sit astride.
- the parts adjoining this recess have a slight elevation towards the front, elevation more accentuated towards the back serving as a backrest, thus facilitating a body position bent in the direction of travel while effectively maintaining the lower part of the back without particular fixed attachment; the user, in a bent forward position, has the possibility grab onto two handles attached to each side of the float to better ensure its balance.
- the steering is ensured by immersing the hand on the desired side, vertical palm.
- the hollow branches of the shape crankset discoid also contribute to buoyancy; they can also be used as wheels for moving the machine ashore, which is an additional advantage. in this case, the machine is pulled by the handle, located at the bow, intended for all possible attachment in the event of towing in an aquatic environment.
- the two-blade device comprises, according to a first characteristic, a bottom bracket with hollow branches of discoidal shape, with removable pedals, and connected by its axis, comprising two cogwheels, two second cogwheels also larger diameter on each of which is fixed laterally, in a diametrically opposite position, a lug; two rods pivot on the one hand on these lugs and slide on the other hand inside two tubes connected to the chassis of the device by pivots; the aquatic fins are attached to the end of these tubes.
- the four toothed wheels mentioned above constitute a box of reduction.
- the retained mechanism makes it possible to reduce the effort and prints via the sliding rods, describing at the lugs and opposite a full rotation, alternating movements, also in opposite directions, of the two tubes on which the fins are fixed water; this beat is limited to a simple rocking movement around pivots due to neutralization of thrust movements and back and forth pulling of the rods by sliding these rods in the corresponding tubes; the fins perform, in as a result, a regular and opposite beat in the same vertical plane.
- the four toothed wheels can be replaced by a crank-rod, taking the place of a crankset axis, on which the two rods pivot sliding doors hollowed out upstream for this purpose.
- This embodiment brings the same result than the previous one, except for not being able to benefit, for the user, from a reduction of the effort deployed.
- the propulsion device comprises a pedal unit with hollow branches and discoidal shape (1), with removable pedals whose protection made of flexible material can constitute the convex and circular head of a pressure screw aiming to make the two parts (2) integral, the axis of which supports two meshing gears with two larger diameter gear wheels (3) fixed to the chassis on one side (9) to allow, in the central part, the free rotary movement of the rods described more far.
- Two lugs are placed laterally on the aforementioned wheels in diametrically position opposite (4); on these pins pivot the hollowed heads of two sliding rods (5) in two tubes (6) themselves fixed to the frame by pivots (7) in order to obtain a movement toggle.
- the aquatic fins are attached to the end of these tubes (8)
- the wheels teeth (3) constitute a reduction box.
- the diameter of these cogwheels as well as the length of the rods (5) are such that the rotation of said wheels driven by the bottom bracket prints to the tubes (6), via the rods (5) and their friction and pressure on the walls inside of these tubes (6), a rocking movement, similar to a beat, reflected to the aquatic fins attached thereto (8).
- This parallel beat and meaning opposite takes place in the same vertical plane, for the reasons explained above, giving fins (8) all their effectiveness.
- the axis of the gear wheels supporting the sliding rods (9) and the pivots supporting the tubes (7) must, to obtain the best yield from the fins, lie in a horizontal plane.
- the two axes of the reduction box (9; 10) may lie in different planes compatible with normal operation.
- the fairing housing the propulsion device has an opening at the rear (11) so that the aquatic fins can beat freely.
- the reduction box (3) is replaced by a connecting rod-crank (3 bis) serving as an axle for the pedal; the two sliding rods (5) pivoting around the two opposite horizontal parts provided for this purpose can perform a full rotation upstream when the crankset is activated by printing to the two tubes (6) a movement of the same kind as that exposed under the first embodiment.
- the hollowed-out fairing (12) housing the propulsion device, fixed under the upper rear part of the float (13), is designed so that its ground clearance is sufficient (14) to allow the disc-shaped branches of the crankset (1) to also be used as wheels.
- the periphery of these branches hollow contributing to buoyancy can be covered with rubberized material (15) .
- the locking and unlocking of these arms (1) of the bottom bracket axle (10) is manually secured by a flat key (16), perforated to allow passage the index finger, sliding in two fixed lateral slides (17).
- the axle of the bottom bracket (10) is hollowed out bevel (18) to facilitate the passage of the lower part of the key and to make thus the two parts secured to one another. Markers can be worn on the visible edge of these two parts to facilitate rapid operation relating to locking.
- Each protection made of flexible material of the pedals (2) can constitute the head of a screw pressure to allow possible dismantling of these pedals screwed into the body of crank arms
- the rigid or inflatable float of a specific shape for optimum use of the propulsion system under the best possible safety conditions is hollowed out in its central part (19) to allow the user to position himself piggyback.
- the part located towards the front has a slight elevation (20) on which can be supported by this user in a bent position in the direction of travel.
- Two handles are provided laterally (22) to be able to grip and raise located at the rear (21), forming a backrest, allows the lower part of the back to be wedged. access to the pedals is facilitated by the recess of the fairing mentioned above (12).
- a handful the bow (23) is used both for possible towing in an aquatic environment and for movements of the float on land.
- the nautical device according to the invention is intended for the general public for local use in the aquatic environment as part of nautical activities related to leisure, sport and health.
Abstract
Description
la présente invention concerne un dispositif de propulsion aquatique adapté à un plateau tel
que décrit dans le préambule de la revendication 1. Un tel dispositif est décrit dans le document GB 227 241.
Plus précisément, la présente invention concerne un engin nautique rigide ou goriflable propulsé par un
dispositif bipalme. Ce dispositif est actionné par un pédalier aux branches creuses et de
forme discoidale totalement immergé dont l'axe est relié à un mécanisme qui impulse un
mouvement ondulatoire régulier et continu à deux tiges coulissant chacune dans un tube
supportant des palmes aquatiques qui effectuent, par transmission du mouvement précité, un
battement, dans un même plan vertical, en parallèle et de sens opposé.the present invention relates to an aquatic propulsion device suitable for a tray such
as described in the preamble of
Les engins nautiques de ce type comprennent traditionnellement un support flottant, assimilable à une perche, sur lequel se trouve sanglé l'utilisateur ce qui peut, en cas de retournement brusque, présenter un danger pour ledit utilisateur. Les parties saillantes de ces engins peuvent également présenter un danger, en milieu aquatique agité, pour les nageurs se trouvant à proximité. Les systèmes de propulsion de même nature correspondants comprenant un pédalier et un dispositif mono ou bipalme totalement immergés sont réalisés, soit sur le principe d'une godille mue par un pédalier à action rectiligne, soit par des palmes aquatiques fixées directement sur les pédales proprement dites. Dans le premier cas, l'effort nécessaire pour produire un mouvement de va-et-vient des pédales est important; dans le second cas, l'effet de propulsion des palmes est amoindri en raison d'un battement de type elliptique et non pas de sens opposé, effectué dans un même plan vertical, à l'instar de celui réalisé par l'homme et reconnu comme le plus performant.Nautical devices of this type traditionally include a floating support, which can be assimilated to a pole, on which the user is strapped which can, in the event of overturning abrupt, present a danger to said user. The protruding parts of these devices can also present a danger, in agitated aquatic environment, to swimmers who are near. Corresponding propulsion systems of the same kind including a pedal and a fully immersed mono or bipal device are produced, either on the principle of a scull moved by a pedal with rectilinear action, or by aquatic fins attached directly to the pedals themselves. In the first case, the effort required to produce a back and forth movement of the pedals is important; in the second case, the propelling effect of the fins is lessened due to an elliptical beat and not in the opposite direction, carried out in the same vertical plane, like that carried out by humans and recognized as the most efficient.
L'engin nautique suivant l'invention permet de remédier à ces inconvénients.The nautical device according to the invention overcomes these drawbacks.
Il comporte un flotteur rigide ou gonflable tout ou partie associé à un système de propulsion bipalme actionné par un pédalier aux branches de forme discoidale et dont les pédales comportent également une protection souple adéquate. Le flotteur, aux formes arrondies, est évidé à sa partie arrière pour permettre à l'utilisateur de prendre place à califourchon. Les parties jouxtant cet évidement comportent une légère surélévation vers l'avant, surélévation plus accentuée vers l'arrière tenant lieu de dossier, facilitant ainsi une position du corps infléchie dans le sens de la marche tout en maintenant efficacement la partie inférieure du dos sans attache fixe particulière; l'usager, en position infléchie vers l'avant, a la possibilité de s'agripper à deux poignées fixées de chaque côté du flotteur pour mieux assurer son équilibre. La direction est assurée en immergeant la main du côté souhaité, paume verticale.La partie arrière supérieure contribue à la flottabilité; un carénage fixe ou démontable, abritant le système de propulsion, ouvert à l'arrière pour permettre le battement des palmes, constitue la partie arrière inférieure de l'engin nautique. Les branches creuses du pédalier de forme discoidale contribuent également à la flottabilité; elles peuvent être de plus utilisées comme roues pour le déplacement à terre de l'engin, ce qui constitue un avantage complémentaire.Dans ce cas, l'engin est tiré par la poignée, située à la proue, prévue pour toute attache éventuelle en cas de remorquage en milieu aquatique.It includes a rigid or inflatable float, all or part associated with a propulsion system bipalme actuated by a pedal with branches of discoidal shape and whose pedals also include adequate soft protection. The float, with rounded shapes, is hollowed out at its rear to allow the user to sit astride. The parts adjoining this recess have a slight elevation towards the front, elevation more accentuated towards the back serving as a backrest, thus facilitating a body position bent in the direction of travel while effectively maintaining the lower part of the back without particular fixed attachment; the user, in a bent forward position, has the possibility grab onto two handles attached to each side of the float to better ensure its balance. The steering is ensured by immersing the hand on the desired side, vertical palm. upper rear part contributes to buoyancy; a fixed or removable fairing, housing the propulsion system, open at the rear to allow the flapping of the fins, constitutes the lower rear part of the nautical craft. The hollow branches of the shape crankset discoid also contribute to buoyancy; they can also be used as wheels for moving the machine ashore, which is an additional advantage. in this case, the machine is pulled by the handle, located at the bow, intended for all possible attachment in the event of towing in an aquatic environment.
Le dispositif bipalme comporte, suivant une première caractéristique, un pédalier aux branches creuses de forme discoidale, avec pédales démontables, et relié par son axe, comportant deux roues dentées, à deux secondes roues également dentées de diamètre supérieur sur chacune desquelles est fixé latéralement, en position diamétralement opposée, un ergot; deux tiges pivotent d'une part sur ces ergots et coulissent d'autre part à l'intérieur de deux tubes reliés au chassis du dispositif par des pivots; les palmes aquatiques sont fixées à l'extrémité de ces tubes. Les quatre roues dentées citées plus haut constituent une boíte de réduction. Ainsi, lorsque l'utilisateur, en position semi-immergée, actionne le pédalier, le mécanisme retenu permet d'amoindrir l'effort et imprime par l'intermédiaire des tiges coulissantes, décrivant au niveau des ergots et en opposé une rotation complète, une alternance de mouvements, également en sens opposé, des deux tubes sur lesquels sont fixées les palmes aquatiques; ce battement se limite à un simple mouvement de bascule autour de pivots en raison de la neutralisation des mouvements de poussée et du tirage en va-et-vient des tiges par coulissement de ces tiges dans les tubes correspondants; les palmes effectuent, en conséquence, un battement régulier et de sens opposé dans un même plan vertical.The two-blade device comprises, according to a first characteristic, a bottom bracket with hollow branches of discoidal shape, with removable pedals, and connected by its axis, comprising two cogwheels, two second cogwheels also larger diameter on each of which is fixed laterally, in a diametrically opposite position, a lug; two rods pivot on the one hand on these lugs and slide on the other hand inside two tubes connected to the chassis of the device by pivots; the aquatic fins are attached to the end of these tubes. The four toothed wheels mentioned above constitute a box of reduction. Thus, when the user, in the semi-submerged position, actuates the pedal, the retained mechanism makes it possible to reduce the effort and prints via the sliding rods, describing at the lugs and opposite a full rotation, alternating movements, also in opposite directions, of the two tubes on which the fins are fixed water; this beat is limited to a simple rocking movement around pivots due to neutralization of thrust movements and back and forth pulling of the rods by sliding these rods in the corresponding tubes; the fins perform, in as a result, a regular and opposite beat in the same vertical plane.
Selon un autre mode de réalisation, les quatre roues dentées peuvent être remplacées par une bielle-manivelle, tenant lieu d'axe du pédalier, sur laquelle pivotent les deux tiges coulissantes évidées en amont à cet effet. Ce mode de réalisation apporte le même résultat que le précédent, à l'exception de ne pouvoir bénéficier, pour l'utilisateur, d'une réduction de l'effort déployé.According to another embodiment, the four toothed wheels can be replaced by a crank-rod, taking the place of a crankset axis, on which the two rods pivot sliding doors hollowed out upstream for this purpose. This embodiment brings the same result than the previous one, except for not being able to benefit, for the user, from a reduction of the effort deployed.
Les six dessins annexés illustrent l'invention. Les quatre premiers concernent le mécanisme de propulsion, les deux derniers l'engin flottant indissociable d'une meilleure mise en oeuvre du mécanisme précité.
- les figures 1 et 2 représentent en coupe le mécanisme complet de propulsion.
- la figure 3 représente une coupe transversale de la partie arrière de l'engin nautique faisant particulièrement ressortir le positionnement du pédalier ainsi que sa variante sous forme de bielle-manivelle.
- la figure 4 représente une branche du pédalier et son système de verrouillage.
- la figure 5 représente une vue latérale de l'engin nautique.
- la figure 6 représente une vue de dessus de l'engin nautique
- Figures 1 and 2 show in section the complete propulsion mechanism.
- FIG. 3 represents a transverse section of the rear part of the nautical machine showing in particular the positioning of the bottom bracket as well as its variant in the form of a connecting rod-crank.
- Figure 4 shows a branch of the pedal and its locking system.
- Figure 5 shows a side view of the nautical craft.
- Figure 6 shows a top view of the nautical craft
En référence aux figures 1 et 2, le dispositif de propulsion comporte un pédalier aux branches creuses et de forme discoidale ( 1 ), avec pédales démontables dont la protection en matériau souple peut constituer la tête convexe et circulaire d'une vis de pression visant à rendre solidaires les deux pièces ( 2 ), dont l'axe supporte deux roues dentées s'engrenant avec deux roues dentées de diamètre supérieur ( 3 ) fixées au chassis d'un seul côté ( 9 ) pour permettre, en partie centrale, le libre mouvement rotatoire des tiges décrites plus loin. Deux ergots sont placés latéralement sur les roues précitées en position diamétralement opposée ( 4 ) ; sur ces ergots pivotent les têtes évidées de deux tiges ( 5 ) coulissant dans deux tubes ( 6 ) eux-mêmes fixés au chassis par pivots ( 7 ) en vue d'obtenir un mouvement de bascule. Les palmes aquatiques sont fixées à l'extrêmité de ces tubes ( 8 ) Les roues dentées ( 3 ) constituent une boíte de réduction. Le diamètre de ces roues dentées ainsi que la longueur des tiges ( 5 ) sont tels que la rotation desdites roues mues par le pédalier imprime aux tubes ( 6 ), par l'intermédiaire des tiges ( 5 ) et leur frottement et pression sur les parois intérieures de ces tubes ( 6 ), un mouvement de bascule, assimilable à un battement, répercuté aux palmes aquatiques qui y sont solidaires ( 8 ). Ce battement parallèle et de sens opposé s'effectue dans un même plan vertical, pour les raisons exposées plus haut, donnant aux palmes ( 8 ) toute leur efficacité. Dans cette forme de réalisation, l'axe des roues dentées supportant les tiges coulissantes ( 9 ) et les pivots supportant les tubes ( 7 ) doivent, pour obtenir le meilleur rendement des palmes, se situer dans un plan horizontal. Par contre, pour des raisons de fabrication industrielle ou autres, les deux axes de la boíte de réduction ( 9 ; 10 )peuvent se situer dans des plans différents compatibles avec un fonctionnement normal.With reference to FIGS. 1 and 2, the propulsion device comprises a pedal unit with hollow branches and discoidal shape (1), with removable pedals whose protection made of flexible material can constitute the convex and circular head of a pressure screw aiming to make the two parts (2) integral, the axis of which supports two meshing gears with two larger diameter gear wheels (3) fixed to the chassis on one side (9) to allow, in the central part, the free rotary movement of the rods described more far. Two lugs are placed laterally on the aforementioned wheels in diametrically position opposite (4); on these pins pivot the hollowed heads of two sliding rods (5) in two tubes (6) themselves fixed to the frame by pivots (7) in order to obtain a movement toggle. The aquatic fins are attached to the end of these tubes (8) The wheels teeth (3) constitute a reduction box. The diameter of these cogwheels as well as the length of the rods (5) are such that the rotation of said wheels driven by the bottom bracket prints to the tubes (6), via the rods (5) and their friction and pressure on the walls inside of these tubes (6), a rocking movement, similar to a beat, reflected to the aquatic fins attached thereto (8). This parallel beat and meaning opposite takes place in the same vertical plane, for the reasons explained above, giving fins (8) all their effectiveness. In this embodiment, the axis of the gear wheels supporting the sliding rods (9) and the pivots supporting the tubes (7) must, to obtain the best yield from the fins, lie in a horizontal plane. On the other hand, for industrial or other manufacturing reasons, the two axes of the reduction box (9; 10) may lie in different planes compatible with normal operation.
Le carénage abritant le dispositif de propulsion présente à l'arrière une ouverture ( 11 ) de telle sorte que les palmes aquatiques puissent battre librement.The fairing housing the propulsion device has an opening at the rear (11) so that the aquatic fins can beat freely.
Selon une variante illustrée en pointillé sur la figure 3, la boíte de réduction ( 3 ) est remplacée par une bielle-manivelle ( 3 bis ) servant d'axe au pédalier; les deux tiges coulissantes ( 5 ) pivotant autour des deux parties horizontales opposées prévues à cet effet peuvent effectuer, en amont, une rotation complète lors de la mise en action du pédalier en imprimant aux deux tubes ( 6 ) un mouvement de même nature que celui exposé au titre de la première forme de réalisation.According to a variant illustrated in dotted lines in Figure 3, the reduction box (3) is replaced by a connecting rod-crank (3 bis) serving as an axle for the pedal; the two sliding rods (5) pivoting around the two opposite horizontal parts provided for this purpose can perform a full rotation upstream when the crankset is activated by printing to the two tubes (6) a movement of the same kind as that exposed under the first embodiment.
En référence aux figures 3 et 4, le carénage évidé ( 12 ) abritant le dispositif de propulsion, fixé sous la partie arrière supérieure du flotteur ( 13 ), est réalisé de telle sorte que sa garde au sol soit suffisante ( 14 ) pour permettre aux branches de forme discoidale du pédalier ( 1 ) d'être également utilisées comme roues. A cet effet, le pourtour de ces branches creuses contribuant à la flottabilité peut être recouvert d'un matériau caoutchouté ( 15 ).Les verrouillage et déverrouillage de ces branches ( 1 ) de l'axe du pédalier ( 10 ) est assuré manuellement par une clavette méplate ( 16 ), ajourée pour permettre d'y passer l'index, coulissant dans deux glissières latérales fixes ( 17 ). L'axe du pédalier ( 10 ) est évidé en biseau ( 18 ) pour faciliter le passage de la partie inférieure de la clavette et pour rendre ainsi les deux pièces solidaires l'une de l'autre. Des repères peuvent être portés sur la tranche visible de ces deux pièces pour faciliter la manoeuvre rapide relative au verrouillage.With reference to FIGS. 3 and 4, the hollowed-out fairing (12) housing the propulsion device, fixed under the upper rear part of the float (13), is designed so that its ground clearance is sufficient (14) to allow the disc-shaped branches of the crankset (1) to also be used as wheels. For this purpose, the periphery of these branches hollow contributing to buoyancy can be covered with rubberized material (15) .The locking and unlocking of these arms (1) of the bottom bracket axle (10) is manually secured by a flat key (16), perforated to allow passage the index finger, sliding in two fixed lateral slides (17). The axle of the bottom bracket (10) is hollowed out bevel (18) to facilitate the passage of the lower part of the key and to make thus the two parts secured to one another. Markers can be worn on the visible edge of these two parts to facilitate rapid operation relating to locking.
Chaque protection en matériau souple des pédales ( 2 ) peut constituer la tête d'une vis de pression pour permettre le démontage éventuel de ces pédales vissées dans le corps des branches du pédalierEach protection made of flexible material of the pedals (2) can constitute the head of a screw pressure to allow possible dismantling of these pedals screwed into the body of crank arms
En référence aux figures 5 et 6, le flotteur rigide ou gonflable d'une forme spécifique pour un usage optimum du système de propulsion dans les meilleures conditions de sécurité, est évidé dans sa partie centrale ( 19 ) pour permettre à l'utilisateur de se positionner à califourchon. La partie située vers l'avant présente une légère surélévation ( 20) sur laquelle peut s'appuyer cet utilisateur en position infléchie dans le sens de la marche. Deux poignées sont prévues latéralement ( 22 ) pour pouvoir s'agripper et la surélévation située à l'arrière ( 21 ), formant dossier, permet de caler la partie inférieure du dos. L'accès aux pédales est facilité par l'évidement du carénage évoqué plus haut ( 12 ). Une poignée à la proue ( 23 ) est utilisée à la fois pour le remorquage éventuel en milieu aquatique et les déplacements à terre du flotteur.Referring to Figures 5 and 6, the rigid or inflatable float of a specific shape for optimum use of the propulsion system under the best possible safety conditions, is hollowed out in its central part (19) to allow the user to position himself piggyback. The part located towards the front has a slight elevation (20) on which can be supported by this user in a bent position in the direction of travel. Two handles are provided laterally (22) to be able to grip and raise located at the rear (21), forming a backrest, allows the lower part of the back to be wedged. access to the pedals is facilitated by the recess of the fairing mentioned above (12). A handful the bow (23) is used both for possible towing in an aquatic environment and for movements of the float on land.
L'engin nautique selon l'invention est destiné au grand public pour une utilisation de proximité en milieu aquatique dans le cadre d'activités nautiques touchant aux loisirs, au sport et à la santé.The nautical device according to the invention is intended for the general public for local use in the aquatic environment as part of nautical activities related to leisure, sport and health.
Claims (8)
- Aquatic propulsion device adapted to a specific float, characterised by a submerged crank gear with hollow legs and of a disc-shaped form (1), with a rubberised circumference (15), the removable pedals of which comprise a flexible, convex and circular, lateral protection which is able to form the head of a locking screw
- Device according to claim 1, characterised in that the axle of the crank gear supports two toothed wheels, which enmesh with two other toothed wheels of a larger diameter (3), forming a reduction gear box, of which the larger are only connected to the frame laterally (9), and each internal face of which supports a pin (4) placed in a position diametrically opposite with respect to each other.
- Device according to claim 2, characterised in that the four toothed wheels (3) can be replaced by a connecting rod (3a), the two horizontal parts of which are situated in a diametrically opposite position.
- Device according to the claims 1, 2 and 3, characterised by two recessed rods (5), which are supported on the pins (4) or on horizontal parts of a connecting rod (3a), about which they effect a rotatory movement, each sliding in tubes (6) which are connected to the frame by pivots (7).
- Device according to claim 4, (characterised) in that the rods (5) communicate to these tubes, by means of friction and pressure on the internal walls of the tubes (6), a pivoting movement which is parallel and in an opposite direction, which movement is transmitted to the aquatic paddles (8) which are attached at their end and are driven in the same vertical plane.
- Device according to claim 1, characterised by a manual system of locking/unlocking comprising a flattened hasp (16), which slides in two fixed, lateral slides (17), and a crank gear axle, of which the edges of transverse recesses at the level of each leg of the crank gear (1) are produced as chamfers (18).
- Device according to claim 1, characterised in that the rigid or inflatable float is recessed in its central, lateral part (19) and comprises, on both sides of this recess, a slight elevation towards the front (20) and one which is more accentuated towards the rear and forms the back of a seat (21) and also two handles which are disposed laterally at the front (22) and one handle at the prow (23).
- Device according to claim 1, characterised in that the rigid or inflatable float comprises, at its rear part, a fairing which is fixed or removable, protects its propulsion system, presents a lateral recess in its lower part (12), possesses adequate ground clearance (14) and forms an open angle at its rear part (11).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0004929A FR2807732B1 (en) | 2000-04-17 | 2000-04-17 | NAUTICAL MACHINE POWERED BY A BIPALMIC DEVICE MOVED BY A CRANKSET FOR MOVING WITHOUT DANGER IN AN AQUATIC ENVIRONMENT |
| FR0004929 | 2000-04-17 | ||
| PCT/FR2001/001144 WO2001079058A1 (en) | 2000-04-17 | 2001-04-13 | Water craft propelled by a double-flipper device actuated by a pedal mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1274622A2 EP1274622A2 (en) | 2003-01-15 |
| EP1274622B1 true EP1274622B1 (en) | 2004-03-17 |
Family
ID=8849332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01925642A Expired - Lifetime EP1274622B1 (en) | 2000-04-17 | 2001-04-13 | Water craft propelled by a double-flipper device actuated by a pedal mechanism |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1274622B1 (en) |
| AT (1) | ATE261842T1 (en) |
| AU (1) | AU2001252335A1 (en) |
| DE (1) | DE60102366D1 (en) |
| FR (1) | FR2807732B1 (en) |
| WO (1) | WO2001079058A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009035367A1 (en) * | 2007-09-11 | 2009-03-19 | Kuz Minyh Vasilii Mihailolich | Water cycle (variants) |
| CN109436257A (en) * | 2018-12-19 | 2019-03-08 | 衢州职业技术学院 | A kind of bio-robot and its catching method for catching seashells |
| CN110901867B (en) * | 2019-12-03 | 2021-07-23 | 哈尔滨工程大学 | Bionic fishtail based on gear connecting rod mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2180890A (en) * | 1938-08-25 | 1939-11-21 | Robert B Menefee | Fishtail propeller |
| US2728298A (en) * | 1952-07-11 | 1955-12-27 | Homer J Shafer | Vessel and fluid propelling device |
| FR2602483B1 (en) * | 1986-08-11 | 1991-05-10 | Gallee Bernard | COMPACT REMOVABLE PALLET PROPULSION MODULE OF A MACHINE FLOATING ON WATER |
| US5320583A (en) * | 1992-01-17 | 1994-06-14 | De Woerd B.V. | Protector for front chain sprocket of a bicycle |
| GB2272412B (en) * | 1992-11-16 | 1996-05-22 | Kin Ming Chau | Water propelling apparatus |
| FR2752214B1 (en) * | 1996-08-12 | 1999-02-05 | Antile Didier | DEVICE FOR FAST MOVING ON OR IN THE WATER |
-
2000
- 2000-04-17 FR FR0004929A patent/FR2807732B1/en not_active Expired - Fee Related
-
2001
- 2001-04-13 AT AT01925642T patent/ATE261842T1/en not_active IP Right Cessation
- 2001-04-13 DE DE60102366T patent/DE60102366D1/en not_active Expired - Lifetime
- 2001-04-13 EP EP01925642A patent/EP1274622B1/en not_active Expired - Lifetime
- 2001-04-13 WO PCT/FR2001/001144 patent/WO2001079058A1/en active IP Right Grant
- 2001-04-13 AU AU2001252335A patent/AU2001252335A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP1274622A2 (en) | 2003-01-15 |
| DE60102366D1 (en) | 2004-04-22 |
| WO2001079058A1 (en) | 2001-10-25 |
| FR2807732A1 (en) | 2001-10-19 |
| WO2001079058A9 (en) | 2002-01-10 |
| AU2001252335A1 (en) | 2001-10-30 |
| ATE261842T1 (en) | 2004-04-15 |
| FR2807732B1 (en) | 2002-07-05 |
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