WO2004024247A1 - Skateboard - Google Patents

Skateboard Download PDF

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Publication number
WO2004024247A1
WO2004024247A1 PCT/FR2003/002621 FR0302621W WO2004024247A1 WO 2004024247 A1 WO2004024247 A1 WO 2004024247A1 FR 0302621 W FR0302621 W FR 0302621W WO 2004024247 A1 WO2004024247 A1 WO 2004024247A1
Authority
WO
WIPO (PCT)
Prior art keywords
branch
arm
caster
pivoting
axis
Prior art date
Application number
PCT/FR2003/002621
Other languages
French (fr)
Inventor
Olivier Vaneukem
Original Assignee
Olivier Vaneukem
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 Olivier Vaneukem filed Critical Olivier Vaneukem
Priority to AU2003278237A priority Critical patent/AU2003278237A1/en
Publication of WO2004024247A1 publication Critical patent/WO2004024247A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/0033—Roller skates; Skate-boards with a castor wheel, i.e. a swiveling follow-up wheel
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A63C17/011—Skateboards with steering mechanisms
    • A63C17/013—Skateboards with steering mechanisms with parallelograms, follow up wheels or direct steering action
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A63C17/014—Wheel arrangements
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/26—Roller skates; Skate-boards with special auxiliary arrangements, e.g. illuminating, marking, or push-off devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K3/00—Bicycles
    • B62K3/002—Bicycles without a seat, i.e. the rider operating the vehicle in a standing position, e.g. non-motorized scooters; non-motorized scooters with skis or runners
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/40—Runner or deck of boards articulated between both feet
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/52—Direct actuation of steering of roller skate or skateboards, e.g. by a foot plate

Definitions

  • the present invention relates to a so-called "skateboard" wheeled vehicle comprising a wall on which the user mounts and two axles equipped with casters, skids or similar bodies for taking support against the ground, connected to the machine by ball joints. These ball joints allow a directional pivoting of the axles when the wall on which the user climbs is inclined, thanks to which the user can steer the machine.
  • skates For simplification, the description will be made with reference to “rollers”, without this expression being limiting and excluding the aforementioned skates or similar bodies.
  • Wheeled vehicles of this type have the drawback of not allowing the user to easily set the machine in motion from a stopped position or to easily maintain the movement of this machine. Indeed, the user is obliged to perform a skating movement with one of his legs, by resting on the ground, the foot of his other leg having to be placed in the longitudinal direction of said wall, on the line longitudinal median thereof. This position, unstable and relatively difficult to master, can be the occasion for falls.
  • the present invention aims to remedy this essential drawback. It also aims to offer an innovative propulsion mode.
  • Document DE-A-201 08 414 U describes a machine indicated as being able to be set in motion by impulse on the ground by means of the user's foot not resting on the platform, and comprising a handlebar maneuvered by the user to give the craft a wavy trajectory. This machine does not make it possible to remedy the drawback mentioned above and does not offer an innovative propulsion mode.
  • the wheeled vehicle according to the present invention comprises:
  • a chassis front part comprising at least one front caster, a first pivoting means with a longitudinally inclined axis and an arm extending towards the rear of the wheeled vehicle, this arm being equipped with at least one caster at its rear part, and
  • a rear frame part comprising the wall on which the user rises, at least one rear caster and a second pivot means connected to said wall, this second pivot means being able to cooperate with said first pivot means to allow a pivoting of the rear chassis part with respect to the front chassis part.
  • the lateral inclination of said wall leads to a pivoting of one of the chassis parts relative to the other, by pivoting of said second pivoting means around said first pivoting means, which has the effect of laterally displacing said arm of the front part of the chassis, on the side opposite to that on which the wall is inclined, and simultaneously engaging the front wheel or wheels when turning in a direction which allows the balance of the user to be maintained.
  • This lateral movement of the arm makes it possible to generate, on the caster or wheels fitted to said arm, a force component directed towards the front of the caster, in the manner of a skating movement, which makes it possible to start the machine then, once it in motion, to maintain this movement by exerting successive lateral inclinations of said wall on one side then on the other.
  • said second pivoting means is connected to said wall by third pivoting means allowing the second pivoting means to pivot relative to said wall about an axis perpendicular to said inclined pivoting axis.
  • At least one caster fitted to said arm is pivotally mounted relative to this arm about an axis substantially perpendicular to the axis of the caster (s).
  • the arm advantageously comprises stops making it possible to limit this pivoting to an angular travel of the caster less than the maximum angular movement of the arm.
  • said pivot axis of this same roller is inclined towards the front of the machine at an angle with the vertical of the order of twenty to forty-five degrees.
  • This inclination also promotes the functioning of the caster, giving it an incidence increasing its grip on the ground.
  • the wheeled vehicle according to the present invention may comprise only a single front caster and a single rear caster. It can also include several casters juxtaposed at the front and / or at the rear, which allows additional stability. Several juxtaposed casters are in particular mounted on a pivoting ball-and-socket axle of the kind known under the name "truck" for skateboards.
  • Figure 1 is a perspective view of the wheeled vehicle from the front;
  • Figures 2 to 4 are views from above, from below and from the side, respectively;
  • Figure 5 is a detail view, on an enlarged scale;
  • Figures 6 to 9 are kinematic views of four positions successively occupy the bodies forming this wheeled vehicle during a propulsion phase thereof.
  • FIG. 1 represents a wheeled vehicle 1 comprising a front part of the chassis 2 and a rear part of the chassis 3, pivotally connected to each other.
  • the front part of the chassis 2 comprises a tubular longitudinal bar 4 which forms a front branch 4a, an intermediate branch 4b and a rear branch 4c.
  • the front branch 4a forms an angle of the order of 60 ° with the intermediate branch 4b and this intermediate branch 4b forms an angle of the order of 120 ° with the rear branch 4c.
  • Two consecutive branches 4a to 4c are connected to each other by bent portions.
  • the front branch 4a is integral with a crossbar 5 comprising two rollers 6 mounted on it at its ends.
  • the rear branch 4c comprises, at its rear end, a swivel caster 8, more particularly visible in FIG. 5.
  • the rear branch 4c comprises a mounting part 9 of the caster 8, having a cylindrical portion 9a engaged in the bar 4 and a parallelepipedic portion 9b projecting from this bar 4 when said cylindrical portion 9a is engaged in it.
  • the portion 9a is dimensioned to be engaged tightly in the bar 4 and is fixed thereto.
  • the portion 9b extends longitudinally in a direction forming an angle of the order of 150 ° with the direction in which the portion 9a extends longitudinally and delimits a lower face for receiving a plate 10 comprising the roller 8.
  • This portion 9b also has a bore 11 which passes through it perpendicularly to said lower face and a pin 12 integral with it, projecting from this lower face, perpendicular to the latter.
  • the plate 10 comprises a hub 10a integral with a yoke 10b for receiving the caster 8.
  • the hub 10a is pierced with a bore 13 and the intermediate wall of the yoke 10b comprises a slot 14 centered on the axis of this bore 13.
  • the bore 13 is intended to come into coincidence with the bore 11 and to receive an axis (not shown) assembling the plate 10 to the part 9, the pin 12 coming s 'engage in the light 14 with the possibility of sliding therein.
  • the plate 10, and therefore the caster 8 can thus pivot relative to the longitudinal direction of the bar 4, between two extreme pivoting positions determined by the abutment of the pin 12 against the edges of the yoke 10b delimiting the ends of the light 14.
  • the rear part of the chassis 3 comprises two parallel bars 15 of identical shapes, each having a bent front portion 15a, three successive intermediate branches 15b, 15c, 15d and a rear branch 15e.
  • Each portion 15a comprises a transverse hole traversed by a pin 16 secured to a sleeve 17 pivotally engaged on the intermediate branch 4b of the front part of the chassis 2, this sleeve 17 allowing the aforementioned pivoting connection of the part of the chassis 2 to the chassis part 3.
  • the two pins 16 are coaxial and allow the rear part of the chassis 3 to pivot relative to the front part of the chassis 2 about their axis while ensuring a rotational connection of the rear part of the chassis 3 and of the sleeve 17.
  • the front intermediate branches 15b connect the portions 15a to the middle intermediate branches 15c and form an angle with the latter of the order of 120 °.
  • the middle intermediate branches 15c receive a wall 18 fixed to them, on which the user is intended to climb.
  • the rear intermediate branch 15d forms, with the branches 15c, an angle of the order of 145 °.
  • the rear branches 15e form, with the branches 15d, an angle of the order of 90 ° and comprise a rear roller 19 carried by an axis 20.
  • This pivoting causes a lateral displacement of the branch 4c on the side opposite to that on which the wall 18 is inclined, which allows the wheel 8 to bear on the ground by generating a force component directed towards the front of the machine 1, in the manner of a skating movement.
  • This force component makes it possible to start this machine 1 from a stopped position then, once this machine in movement, to maintain this movement by exerting successive lateral inclinations of the wall 18 on one side then on the 'other.
  • the wheeled vehicle according to the present invention thus brings decisive improvements to the wheeled vehicles homologous to the prior art, by allowing the user to easily set the vehicle in motion from a stopped position and then easily then maintain the movement of this machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

The invention concerns a skateboard (1) consisting of a front body part (2), comprising a pivot (4b) inclined towards the front of the skateboard (1) and an arm (4c) extending rearward, equipped with at least one roller (8), and a rear body part (3), comprising the board (18) whereon rides the user, at least one rear roller (19) and a sleeve (17) integral with said board (18), said sleeve (17) being adapted to be pivotably engaged on the pivot (4b) comprised in the front body part (2).

Description

ENGIN A ROULETTES La présente invention est relative à un engin à roulettes dit "skateboard" comprenant une paroi sur laquelle monte l'utilisateur et deux essieux équipés de roulettes, patins ou organes similaires de prise d'appui contre le sol, reliés à l'engin par des rotules. Ces rotules permettent un pivotement directionnel des essieux lorsque la paroi sur laquelle l'utilisateur monte est inclinée, grâce auquel l'utilisateur peut diriger l'engin. The present invention relates to a so-called "skateboard" wheeled vehicle comprising a wall on which the user mounts and two axles equipped with casters, skids or similar bodies for taking support against the ground, connected to the machine by ball joints. These ball joints allow a directional pivoting of the axles when the wall on which the user climbs is inclined, thanks to which the user can steer the machine.
Par simplification, la description sera faite en référence à des "roulettes", sans que cette expression soit limitative et exclut les patins ou organes similaires précités.For simplification, the description will be made with reference to "rollers", without this expression being limiting and excluding the aforementioned skates or similar bodies.
Les engins à roulettes de ce type, bien connus, ont pour inconvénient de ne pas permettre à l'utilisateur de mettre facilement l'engin en mouvement à partir d'une position d'arrêt ni de facilement entretenir le mouvement de cet engin. En effet, l'utilisateur est obligé d'effectuer un mouvement de patinage avec l'une de ses jambes, en prenant appui sur le sol, le pied de son autre jambe devant être placé dans le sens longitudinal de ladite paroi, sur la ligne médiane longitudinale de celle-ci. Cette position, instable et relativement difficile à maîtriser, peut être l'occasion de chutes. La présente invention vise à remédier à cet inconvénient essentiel. Elle vise également à proposer un mode de propulsion innovant.Wheeled vehicles of this type, well known, have the drawback of not allowing the user to easily set the machine in motion from a stopped position or to easily maintain the movement of this machine. Indeed, the user is obliged to perform a skating movement with one of his legs, by resting on the ground, the foot of his other leg having to be placed in the longitudinal direction of said wall, on the line longitudinal median thereof. This position, unstable and relatively difficult to master, can be the occasion for falls. The present invention aims to remedy this essential drawback. It also aims to offer an innovative propulsion mode.
Le document DE-A-201 08 414 U décrit un engin indiqué comme pouvant être mis en mouvement par impulsion sur le sol au moyen du pied de l'utilisateur non en appui sur la plate-forme, et comprenant un guidon manœuvré par l'utilisateur pour donner à l'engin une trajectoire ondulée. Cet engin ne permet pas de remédier à l'inconvénient mentionné plus haut et ne propose pas un mode de propulsion innovant.Document DE-A-201 08 414 U describes a machine indicated as being able to be set in motion by impulse on the ground by means of the user's foot not resting on the platform, and comprising a handlebar maneuvered by the user to give the craft a wavy trajectory. This machine does not make it possible to remedy the drawback mentioned above and does not offer an innovative propulsion mode.
Le document US2002/121757 A1 décrit un engin de structure similaire à celui du document précédent, avec une possibilité d'agir alternativement sur le guidon pour entretenir le mouvement de l'engin. Cet engin ne permet pas non plus de remédier parfaitement à l'inconvénient mentionné plus haut, et son mode de propulsion n'est pas particulièrement attractif. L'engin à roulettes selon la présente invention comprend :Document US2002 / 121757 A1 describes a machine with a structure similar to that of the previous document, with the possibility of acting alternately on the handlebars to maintain the movement of the machine. This machine also does not make it possible to perfectly remedy the drawback mentioned above, and its mode of propulsion is not particularly attractive. The wheeled vehicle according to the present invention comprises:
- une partie avant de châssis, comportant au moins une roulette avant, un premier moyen de pivotement à axe incliné longitudinalement et un bras s'étendant vers l'arrière de l'engin à roulettes, ce bras étant équipé d'au moins une roulette au niveau de sa partie arrière, et- A chassis front part, comprising at least one front caster, a first pivoting means with a longitudinally inclined axis and an arm extending towards the rear of the wheeled vehicle, this arm being equipped with at least one caster at its rear part, and
- une partie arrière de châssis, comprenant la paroi sur laquelle monte l'utilisateur, au moins une roulette arrière et un deuxième moyen de pivotement relié à ladite paroi, ce deuxième moyen de pivotement étant propre à coopérer avec ledit premier moyen de pivotement pour permettre un pivotement de la partie arrière de châssis par rapport à la partie avant de châssis.- A rear frame part, comprising the wall on which the user rises, at least one rear caster and a second pivot means connected to said wall, this second pivot means being able to cooperate with said first pivot means to allow a pivoting of the rear chassis part with respect to the front chassis part.
L'inclinaison latérale de ladite paroi amène à un pivotement de l'une des parties de châssis par rapport à l'autre, par pivotement dudit deuxième moyen de pivotement autour dudit premier moyen de pivotement, ce qui a pour effet de déplacer latéralement ledit bras de la partie avant de châssis, du côté opposé à celui sur lequel la paroi est inclinée, et d'engager simultanément la ou les roues avant en virage dans un sens qui permet le maintien de l'équilibre de l'utilisateur.The lateral inclination of said wall leads to a pivoting of one of the chassis parts relative to the other, by pivoting of said second pivoting means around said first pivoting means, which has the effect of laterally displacing said arm of the front part of the chassis, on the side opposite to that on which the wall is inclined, and simultaneously engaging the front wheel or wheels when turning in a direction which allows the balance of the user to be maintained.
Ce déplacement latéral du bras permet de générer sur la ou les roulettes équipant ledit bras une composante de force dirigée vers l'avant de l'engin à roulettes, à la manière d'un mouvement de patinage, ce qui permet de faire démarrer l'engin puis, une fois celui-ci en mouvement, d'entretenir ce mouvement en exerçant des inclinaisons latérales successives de ladite paroi sur un côté puis sur l'autre. De préférence, ledit deuxième moyen de pivotement est relié à ladite paroi par des troisièmes moyens de pivotement permettant un pivotement du deuxième moyen de pivotement par rapport à ladite paroi autour d'un axe perpendiculaire audit axe de pivotement incliné.This lateral movement of the arm makes it possible to generate, on the caster or wheels fitted to said arm, a force component directed towards the front of the caster, in the manner of a skating movement, which makes it possible to start the machine then, once it in motion, to maintain this movement by exerting successive lateral inclinations of said wall on one side then on the other. Preferably, said second pivoting means is connected to said wall by third pivoting means allowing the second pivoting means to pivot relative to said wall about an axis perpendicular to said inclined pivoting axis.
De préférence, au moins une roulette équipant ledit bras est montée pivotante par rapport à ce bras autour d'un axe sensiblement perpendiculaire à l'axe de la ou des roulettes.Preferably, at least one caster fitted to said arm is pivotally mounted relative to this arm about an axis substantially perpendicular to the axis of the caster (s).
Ce pivotement favorise l'exercice de ladite composante de force vers l'avant. Le bras comprend avantageusement des butées permettant de limiter ce pivotement à une course angulaire de la roulette inférieure au débattement angulaire maximal du bras.This pivoting promotes the exercise of said forward force component. The arm advantageously comprises stops making it possible to limit this pivoting to an angular travel of the caster less than the maximum angular movement of the arm.
Cette limitation du pivotement permet de contrôler l'orientation de la roulette par rapport au bras.This limitation of the pivoting makes it possible to control the orientation of the caster relative to the arm.
De préférence, ledit axe de pivotement de cette même roulette est incliné vers l'avant de l'engin selon un angle avec la verticale de l'ordre de vingt à quarante-cinq degrés.Preferably, said pivot axis of this same roller is inclined towards the front of the machine at an angle with the vertical of the order of twenty to forty-five degrees.
Cette inclinaison favorise également le fonctionnement de la roulette, en lui donnant une incidence augmentant son adhérence au sol.This inclination also promotes the functioning of the caster, giving it an incidence increasing its grip on the ground.
L'engin à roulettes selon la présente invention peut ne comprendre qu'une seule roulette avant et une seule roulette arrière. Il peut également comprendre plusieurs roulettes juxtaposées à l'avant et/ou à l'arrière, ce qui permet un surcroît de stabilité. Plusieurs roulettes juxtaposées sont en particulier montées sur un essieu pivotant à rotule du genre de ceux connus sous la dénomination "truck" pour les skateboards.The wheeled vehicle according to the present invention may comprise only a single front caster and a single rear caster. It can also include several casters juxtaposed at the front and / or at the rear, which allows additional stability. Several juxtaposed casters are in particular mounted on a pivoting ball-and-socket axle of the kind known under the name "truck" for skateboards.
L'invention sera bien comprise, et d'autres caractéristiques et avantages de celle-ci apparaîtront, en référence au dessin schématique annexé, représentant, à titre d'exemple non limitatif, une forme de réalisation préférée qu'elle concerne.The invention will be clearly understood, and other characteristics and advantages thereof will appear, with reference to the appended schematic drawing, representing, by way of nonlimiting example, a preferred embodiment which it relates to.
La figure 1 est une vue de l'engin à roulettes en perspective, par l'avant ; les figures 2 à 4 en sont des vues respectivement de dessus, de dessous et de côté ; la figure 5 en est une vue de détail, à échelle agrandie ; les figures 6 à 9 sont des vues cinématiques de quatre positions qu'occupent successivement les organes formant cet engin à roulettes au cours d'une phase de propulsion de celui-ci.Figure 1 is a perspective view of the wheeled vehicle from the front; Figures 2 to 4 are views from above, from below and from the side, respectively; Figure 5 is a detail view, on an enlarged scale; Figures 6 to 9 are kinematic views of four positions successively occupy the bodies forming this wheeled vehicle during a propulsion phase thereof.
La figure 1 représente un engin à roulettes 1 comprenant une partie avant de châssis 2 et une partie arrière de châssis 3, reliées l'une à l'autre de manière pivotante.FIG. 1 represents a wheeled vehicle 1 comprising a front part of the chassis 2 and a rear part of the chassis 3, pivotally connected to each other.
La partie avant de châssis 2 comprend une barre longitudinale tubulaire 4 qui forme une branche avant 4a, une branche intermédiaire 4b et une branche arrière 4c. Comme le montre plus particulièrement la figure 4, la branche avant 4a forme un angle de l'ordre de 60° avec la branche intermédiaire 4b et cette branche intermédiaire 4b forme un angle de l'ordre de 120° avec la branche arrière 4c. Deux branches 4a à 4c consécutives sont raccordées l'une à l'autre par des portions coudées.The front part of the chassis 2 comprises a tubular longitudinal bar 4 which forms a front branch 4a, an intermediate branch 4b and a rear branch 4c. As shown more particularly in FIG. 4, the front branch 4a forms an angle of the order of 60 ° with the intermediate branch 4b and this intermediate branch 4b forms an angle of the order of 120 ° with the rear branch 4c. Two consecutive branches 4a to 4c are connected to each other by bent portions.
La branche avant 4a est solidaire d'une barre transversale 5 comprenant deux roulettes 6 montées sur elle à ses extrémités.The front branch 4a is integral with a crossbar 5 comprising two rollers 6 mounted on it at its ends.
La branche arrière 4c comprend, à son extrémité arrière, une roulette pivotante 8, plus particulièrement visible sur la figure 5.The rear branch 4c comprises, at its rear end, a swivel caster 8, more particularly visible in FIG. 5.
En référence à cette figure 5, il apparaît que la branche arrière 4c comprend une pièce de montage 9 de la roulette 8, présentant une portion cylindrique 9a engagée dans la barre 4 et une portion parallélépipédique 9b dépassant de cette barre 4 lorsque ladite portion cylindrique 9a est engagée dans celle-ci.With reference to this FIG. 5, it appears that the rear branch 4c comprises a mounting part 9 of the caster 8, having a cylindrical portion 9a engaged in the bar 4 and a parallelepipedic portion 9b projecting from this bar 4 when said cylindrical portion 9a is engaged in it.
La portion 9a est dimensionnée pour être engagée étroitement dans la barre 4 et est fixée à celle-ci.The portion 9a is dimensioned to be engaged tightly in the bar 4 and is fixed thereto.
La portion 9b s'étend longitudinalement dans une direction formant un angle de l'ordre de 150° avec la direction dans laquelle s'étend longitudinalement la portion 9a et délimite une face inférieure de réception d'une platine 10 comportant la roulette 8.The portion 9b extends longitudinally in a direction forming an angle of the order of 150 ° with the direction in which the portion 9a extends longitudinally and delimits a lower face for receiving a plate 10 comprising the roller 8.
Cette portion 9b présente en outre un alésage 11 qui la traverse perpendiculairement à ladite face inférieure et un pion 12 solidaire d'elle, faisant saillie de cette face inférieure, perpendiculairement à celle-ci. La platine 10 comprend un moyeu 10a solidaire d'une chape 10b de réception de la roulette 8. Le moyeu 10a est percé d'un alésage 13 et la paroi intermédiaire de la chape 10b comprend une lumière 14 centrée sur l'axe de cet alésage 13.This portion 9b also has a bore 11 which passes through it perpendicularly to said lower face and a pin 12 integral with it, projecting from this lower face, perpendicular to the latter. The plate 10 comprises a hub 10a integral with a yoke 10b for receiving the caster 8. The hub 10a is pierced with a bore 13 and the intermediate wall of the yoke 10b comprises a slot 14 centered on the axis of this bore 13.
Ainsi que cela se comprend en référence à la figure 5, l'alésage 13 est destiné à venir en coïncidence de l'alésage 11 et à recevoir un axe (non représenté) assemblant la platine 10 à la pièce 9, le pion 12 venant s'engager dans la lumière 14 avec possibilité de coulissement dans celle-ci. La platine 10, et donc la roulette 8, peut ainsi pivoter par rapport à la direction longitudinale de la barre 4, entre deux positions extrêmes de pivotement déterminées par la venue en butée du pion 12 contre les bords de la chape 10b délimitant les extrémités de la lumière 14. La partie arrière de châssis 3 comprend deux barres parallèles 15 de formes identiques, présentant chacune une portion coudée avant 15a, trois branches intermédiaires successives 15b, 15c, 15d et une branche arrière 15e.As can be understood with reference to FIG. 5, the bore 13 is intended to come into coincidence with the bore 11 and to receive an axis (not shown) assembling the plate 10 to the part 9, the pin 12 coming s 'engage in the light 14 with the possibility of sliding therein. The plate 10, and therefore the caster 8, can thus pivot relative to the longitudinal direction of the bar 4, between two extreme pivoting positions determined by the abutment of the pin 12 against the edges of the yoke 10b delimiting the ends of the light 14. The rear part of the chassis 3 comprises two parallel bars 15 of identical shapes, each having a bent front portion 15a, three successive intermediate branches 15b, 15c, 15d and a rear branch 15e.
Chaque portion 15a comprend un trou transversal traversé par un tourillon 16 solidaire d'un manchon 17 engagé à pivotement sur la branche intermédiaire 4b de la partie avant de châssis 2, ce manchon 17 permettant le raccordement pivotant précité de la partie de châssis 2 à la partie de châssis 3.Each portion 15a comprises a transverse hole traversed by a pin 16 secured to a sleeve 17 pivotally engaged on the intermediate branch 4b of the front part of the chassis 2, this sleeve 17 allowing the aforementioned pivoting connection of the part of the chassis 2 to the chassis part 3.
Les deux tourillons 16 sont coaxiaux et permettent à la partie arrière de châssis 3 de pivoter par rapport à la partie avant de châssis 2 autour de leur axe tout en assurant une liaison en rotation de la partie arrière de châssis 3 et du manchon 17.The two pins 16 are coaxial and allow the rear part of the chassis 3 to pivot relative to the front part of the chassis 2 about their axis while ensuring a rotational connection of the rear part of the chassis 3 and of the sleeve 17.
Les branches intermédiaires avant 15b relient les portions 15a aux branches intermédiaires médianes 15c et forment avec ces dernières un angle de l'ordre de 120°.The front intermediate branches 15b connect the portions 15a to the middle intermediate branches 15c and form an angle with the latter of the order of 120 °.
Les branches intermédiaires médianes 15c reçoivent une paroi 18 fixée à elles, sur laquelle l'utilisateur est destiné à monter.The middle intermediate branches 15c receive a wall 18 fixed to them, on which the user is intended to climb.
La branche intermédiaire arrière 15d forme, avec les branches 15c, un angle de l'ordre de 145°. Les branches arrière 15e forment, avec les branches 15d, un angle de l'ordre 90° et comportent une roulette arrière 19 portée par un axe 20.The rear intermediate branch 15d forms, with the branches 15c, an angle of the order of 145 °. The rear branches 15e form, with the branches 15d, an angle of the order of 90 ° and comprise a rear roller 19 carried by an axis 20.
En pratique, ainsi que l'illustrent les figures 6 à 9, l'utilisateur se trouvant sur la paroi 18 incline successivement cette paroi 18 sur un côté latéral de l'engin 1 puis sur l'autre, ce qui provoque un pivotement de la partie arrière de châssis 2 par rapport à la partie avant de châssis 3, par pivotement du manchon 17 autour du pivot que forme la branche 4b.In practice, as illustrated in FIGS. 6 to 9, the user being on the wall 18 successively inclines this wall 18 on a lateral side of the machine 1 then on the other, which causes the pivoting of the rear part of chassis 2 relative to the front part of chassis 3, by pivoting of the sleeve 17 around the pivot formed by the branch 4b.
Ce pivotement provoque un déplacement latéral de la branche 4c du côté opposé à celui sur lequel la paroi 18 est inclinée, qui permet à la roulette 8 de prendre appui sur le sol en générant une composante de force dirigée vers l'avant de l'engin 1 , à la manière d'un mouvement de patinage.This pivoting causes a lateral displacement of the branch 4c on the side opposite to that on which the wall 18 is inclined, which allows the wheel 8 to bear on the ground by generating a force component directed towards the front of the machine 1, in the manner of a skating movement.
Cette composante de force permet de faire démarrer cet engin 1 à partir d'une position d'arrêt puis, une fois cet engin en mouvement, d'entretenir ce mouvement en exerçant des inclinaisons latérales successives de la paroi 18 sur un côté puis sur l'autre.This force component makes it possible to start this machine 1 from a stopped position then, once this machine in movement, to maintain this movement by exerting successive lateral inclinations of the wall 18 on one side then on the 'other.
Plus précisément, en référence à la figure 6, l'utilisateur a incliné la paroiMore specifically, with reference to FIG. 6, the user has tilted the wall
18 du côté gauche, ce qui a provoqué le déplacement de la branche 4c du côté droit. Le pivotement limité de la roulette 8 et l'inclinaison de l'axe de pivotement de cette roulette favorise la génération et la transmission de ladite composante de force.18 on the left side, which caused the branch 4c to move to the right side. The limited pivoting of the caster 8 and the inclination of the pivot axis of this caster promotes the generation and transmission of said force component.
A l'arrivée de la branche 4c vers une position angulaire optimale (celle montrée sur la figure 6), l'utilisateur exerce un appui du côté de la paroi opposée (figure 7), ce qui provoque le pivotement de la roulette 8 et le mouvement du bras du côté opposé, jusqu'à la position montrée sur la figure 8, à partir de laquelle l'utilisateur exerce un appui sur la paroi 18 du côté opposé, pour déplacer à nouveau le bras vers la position opposée (cf. figure 9).When the branch 4c arrives at an optimal angular position (that shown in FIG. 6), the user presses on the side of the opposite wall (FIG. 7), which causes the caster 8 to pivot and the movement of the arm on the opposite side, up to the position shown in Figure 8, from which the user presses on the wall 18 on the opposite side, to move the arm again to the opposite position (see figure 9).
L'engin à roulettes selon la présente invention apporte ainsi des améliorations déterminantes aux engins à roulettes homologues de la technique antérieure, en permettant à l'utilisateur de mettre facilement l'engin en mouvement à partir d'une position d'arrêt puis de facilement entretenir ensuite le mouvement de cet engin.The wheeled vehicle according to the present invention thus brings decisive improvements to the wheeled vehicles homologous to the prior art, by allowing the user to easily set the vehicle in motion from a stopped position and then easily then maintain the movement of this machine.
Il va de soi que l'invention n'est pas limitée à la forme de réalisation décrite ci-dessus à titre d'exemple mais qu'elle s'étend à toutes les formes de réalisations couvertes par les revendications ci-annexées. It goes without saying that the invention is not limited to the embodiment described above by way of example but that it extends to all the embodiments covered by the claims appended hereto.

Claims

REVENDICATIONS
1 - Engin (1) à roulettes, patins ou organes similaires de prise d'appui contre le sol, caractérisé en ce qu'il comprend :1 - Machine (1) with wheels, skids or similar bodies for taking support against the ground, characterized in that it comprises:
- une partie avant de châssis (2), comportant au moins une roulette avant (6), un premier moyen de pivotement (4b) à axe incliné longitudinalement et un bras (4c) s'étendant vers l'arrière de l'engin à roulettes (1), ce bras (4c) étant équipé d'au moins une roulette (8) au niveau de sa partie arrière, et- a front frame part (2), comprising at least one front caster (6), a first pivot means (4b) with a longitudinally inclined axis and an arm (4c) extending towards the rear of the machine to rollers (1), this arm (4c) being equipped with at least one roller (8) at its rear part, and
- une partie arrière de châssis (3), comprenant la paroi (18) sur laquelle monte l'utilisateur, au moins une roulette arrière (19) et un deuxième moyen de pivotement (17) relié à ladite paroi (18), ce deuxième moyen de pivotement (17) étant propre à coopérer avec ledit premier moyen de pivotement (4b) pour permettre un pivotement de la partie arrière de châssis (3) par rapport à la partie avant de châssis (2).- a rear frame part (3), comprising the wall (18) on which the user mounts, at least one rear caster (19) and a second pivoting means (17) connected to said wall (18), this second pivot means (17) being adapted to cooperate with said first pivot means (4b) to allow pivoting of the rear frame part (3) relative to the front frame part (2).
2 - Engin à roulettes selon la revendication 1 , caractérisé en ce que ledit deuxième moyen de pivotement (17) est relié à ladite paroi (18) par des troisièmes moyens de pivotement (16) permettant un pivotement du deuxième moyen de pivotement (17) par rapport à ladite paroi (18) autour d'un axe perpendiculaire audit axe de pivotement incliné.2 - Wheeled machine according to claim 1, characterized in that said second pivot means (17) is connected to said wall (18) by third pivot means (16) allowing pivoting of the second pivot means (17) relative to said wall (18) about an axis perpendicular to said inclined pivot axis.
3 - Engin à roulettes selon la revendication 1 , caractérisé en ce qu'au moins une roulette (8) équipant ledit bras (4c) est montée pivotante par rapport à ce bras (4c) autour d'un axe sensiblement perpendiculaire à l'axe de la ou des roulettes (8).3 - Roller machine according to claim 1, characterized in that at least one roller (8) equipping said arm (4c) is pivotally mounted relative to this arm (4c) about an axis substantially perpendicular to the axis of the caster (s) (8).
4 - Engin à roulettes selon la revendication 3, caractérisé en ce que le bras (4c) comprend des butées (10b, 12) permettant de limiter le pivotement de la roulette (8) ou des roulettes pivotantes équipant ledit bras (4c) à une course angulaire de la roulette (8) inférieure au débattement angulaire maximal du bras (4c).4 - wheeled vehicle according to claim 3, characterized in that the arm (4c) comprises stops (10b, 12) for limiting the pivoting of the caster (8) or swivel casters equipping said arm (4c) to a angular travel of the caster (8) less than the maximum angular movement of the arm (4c).
5 - Engin à roulettes selon la revendication 3 ou la revendication 4, caractérisé en ce que l'axe de pivotement de la ou desdites roulettes (8) pivotantes équipant le bras (4c) est incliné vers l'avant de l'engin à roulettes (1) selon un angle avec la verticale de l'ordre de vingt à quarante-cinq degrés.5 - Wheeled vehicle according to claim 3 or claim 4, characterized in that the pivot axis of said one or more castors (8) fitted to the arm (4c) is inclined towards the front of the wheeled vehicle (1) at an angle to the vertical of the order of twenty to forty-five degrees.
6 - Engin à roulettes selon l'une des revendications 1 à 5, caractérisé en ce qu'il comprend plusieurs roulettes (6) juxtaposées à l'avant et/ou à l'arrière. 7 - Engin à roulettes selon la revendication 6, caractérisé en ce que plusieurs roulettes (6) juxtaposées sont montées sur un essieu pivotant à rotule du genre de ceux connus sous la dénomination "truck" pour les skateboards. 8 - Engin à roulettes selon l'une des revendications 1 à 7, caractérisé en ce que la partie avant de châssis (2) comprend une barre longitudinale tubulaire (4) qui forme une branche avant (4a), une branche intermédiaire (4b) et une branche arrière (4c), la branche avant (4a) formant un angle de l'ordre de 60° avec la branche intermédiaire (4b) et cette branche intermédiaire (4b) formant un angle de l'ordre de 120° avec la branche arrière (4c).6 - Wheeled vehicle according to one of claims 1 to 5, characterized in that it comprises several rollers (6) juxtaposed at the front and / or at the rear. 7 - Roller machine according to claim 6, characterized in that several rollers (6) juxtaposed are mounted on a swivel axle with ball joint of the kind known under the name "truck" for skateboards. 8 - Roller machine according to one of claims 1 to 7, characterized in that the front frame part (2) comprises a longitudinal tubular bar (4) which forms a front branch (4a), an intermediate branch (4b) and a rear branch (4c), the front branch (4a) forming an angle of the order of 60 ° with the intermediate branch (4b) and this intermediate branch (4b) forming an angle of the order of 120 ° with the rear branch (4c).
9 - Engin à roulettes selon la revendication 8, caractérisé en ce que la partie arrière de châssis (3) comprend deux barres parallèles (15) de forme identique, présentant chacune une portion coudée avant (15a), chaque portion (15a) comprenant un trou transversal traversé par un tourillon (16) solidaire d'un manchon (17) engagé à pivotement sur la branche intermédiaire (4b) de la partie avant de châssis (2), ce manchon (17) permettant le raccordement pivotant de la partie de châssis (2) à la partie de châssis (3).9 - wheeled vehicle according to claim 8, characterized in that the rear frame part (3) comprises two parallel bars (15) of identical shape, each having a bent front portion (15a), each portion (15a) comprising a transverse hole traversed by a pin (16) integral with a sleeve (17) pivotally engaged on the intermediate branch (4b) of the front part of the frame (2), this sleeve (17) allowing the pivoting connection of the part of chassis (2) to the chassis part (3).
10 - Engin à roulettes selon la revendication 9, caractérisé en ce que chaque barre parallèle (15) présente, outre ladite portion coudée avant (15a), trois branches intermédiaires successives (15b, 15c, 15d) et une branche arrière (15e), les branches intermédiaires avant (15b) reliant les portions coudées avant (15a) aux branches intermédiaires médianes (15c) et formant avec ces dernières un angle de l'ordre de 120°, les branches intermédiaires médianes (15c) recevant une paroi (18) fixée à elles, sur laquelle l'utilisateur est destiné à monter, la branche intermédiaire arrière (15d) formant, avec les branches (15c), un angle de l'ordre de 145°, et les branches arrière (15e) formant, avec les branches intermédiaires arrières (15d), un angle de l'ordre 90° et comportant une roulette arrière (19) portée par un axe (20). 10 - Wheeled machine according to claim 9, characterized in that each parallel bar (15) has, in addition to said bent front portion (15a), three successive intermediate branches (15b, 15c, 15d) and a rear branch (15th), the front intermediate branches (15b) connecting the front bent portions (15a) to the middle intermediate branches (15c) and forming with them an angle of the order of 120 °, the middle intermediate branches (15c) receiving a wall (18) attached to them, on which the user is intended to climb, the rear intermediate branch (15d) forming, with the branches (15c), an angle of the order of 145 °, and the rear branches (15e) forming, with the rear intermediate branches (15d), an angle of the order of 90 ° and comprising a rear caster (19) carried by an axis (20).
PCT/FR2003/002621 2002-09-13 2003-09-01 Skateboard WO2004024247A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003278237A AU2003278237A1 (en) 2002-09-13 2003-09-01 Skateboard

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR02/11362 2002-09-13
FR0211362A FR2844459A1 (en) 2002-09-13 2002-09-13 Chassis for skateboard has front section with wheels and rear section with board pivoted together along angled pivot axis

Publications (1)

Publication Number Publication Date
WO2004024247A1 true WO2004024247A1 (en) 2004-03-25

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ID=31897361

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2003/002621 WO2004024247A1 (en) 2002-09-13 2003-09-01 Skateboard

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AU (1) AU2003278237A1 (en)
FR (1) FR2844459A1 (en)
WO (1) WO2004024247A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20108414U1 (en) * 2001-05-11 2001-08-02 Chang Wen Hwan Front wheel unit for a scooter
US20010052682A1 (en) * 2001-01-08 2001-12-20 Hong-Jiun Gu Safety driving equipment for scooter
CA2333816A1 (en) * 2001-01-26 2002-07-26 Jean-Yves Cloutier "magic scooter" - self-propelled acrobatic scooter
US20020121757A1 (en) * 2001-03-01 2002-09-05 Richard Louh Transformable twist scooter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010052682A1 (en) * 2001-01-08 2001-12-20 Hong-Jiun Gu Safety driving equipment for scooter
CA2333816A1 (en) * 2001-01-26 2002-07-26 Jean-Yves Cloutier "magic scooter" - self-propelled acrobatic scooter
US20020121757A1 (en) * 2001-03-01 2002-09-05 Richard Louh Transformable twist scooter
DE20108414U1 (en) * 2001-05-11 2001-08-02 Chang Wen Hwan Front wheel unit for a scooter

Also Published As

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AU2003278237A1 (en) 2004-04-30
FR2844459A1 (en) 2004-03-19

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