WO2005023382A2 - Roller vehicle - Google Patents

Roller vehicle Download PDF

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Publication number
WO2005023382A2
WO2005023382A2 PCT/FR2004/002227 FR2004002227W WO2005023382A2 WO 2005023382 A2 WO2005023382 A2 WO 2005023382A2 FR 2004002227 W FR2004002227 W FR 2004002227W WO 2005023382 A2 WO2005023382 A2 WO 2005023382A2
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WO
WIPO (PCT)
Prior art keywords
board
support
wheel
wheeled vehicle
vehicle according
Prior art date
Application number
PCT/FR2004/002227
Other languages
French (fr)
Other versions
WO2005023382A3 (en
Inventor
Stéphane Pelletier
Original Assignee
Pelletier Stephane
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
Priority claimed from FR0310341A external-priority patent/FR2859166B1/en
Application filed by Pelletier Stephane filed Critical Pelletier Stephane
Publication of WO2005023382A2 publication Critical patent/WO2005023382A2/en
Publication of WO2005023382A3 publication Critical patent/WO2005023382A3/en

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Classifications

    • 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

Definitions

  • the present invention relates, in general, to a wheeled vehicle suitable for traveling in an urban environment and practicing sport.
  • the invention relates to a wheeled vehicle comprising a board adapted to allow the placement of the feet of a user of the vehicle on an upper face of the board in the normal position of use and supported by several guide wheels placed near the '' a first longitudinal end of the board and at least one guided wheel placed near a second longitudinal end of the board, each wheel having its own axis of rotation around which it is rotatably mounted, the axes of rotation of the guiding wheels being connected to the board by an articulated support means and being movable together with respect to the board in a directional orientation movement of each guide wheel, and the axis of rotation of the guided wheel (s) being connected to the board, the board comprising a first foot support zone located on the upper face of the board near the first re longitudinal end of the board and a second foot support zone located on the upper face of the board, near the second longitudinal end of the board and longitudinally distant from the first end of the board, these support zones being located between the guided wheel (s) and the guide wheels.
  • wheeled vehicles have been developed and are particularly suitable for travel in urban areas because they are easy to implement, silent, compact, particularly manoeuvrable, relatively quick and non-polluting as they are generally powered by muscles or electrically. These wheeled vehicles are also used for sports.
  • a wheeled vehicle of the type defined above is for example described in patent document WO 00/03773 from Micro Mobility Systems AG.
  • This vehicle has three wheels carrying a board on which a control stick can be fixed.
  • a guided wheel is positioned at a second longitudinal end of the board and two guide wheels are positioned at a first end of the board.
  • the user of the vehicle is positioned on the board, with the guiding wheels oriented in the direction of advance and with one foot, pushes the vehicle by taking regular support on the ground, next to the board until its speed is sufficient to keep it balanced on the vehicle.
  • the user steers the vehicle by moving his support points to the side of the board to which he wishes to go.
  • This asymmetry of distribution of the supports on the vehicle produces a torque of rotation of the board along a longitudinal pivot axis of the board.
  • the board pivots laterally around the longitudinal pivot axis of the board passing through the point of contact between the ground also called the plane support and the guided wheel.
  • the articulated support means which is generally an articulated parallelogram or any other support means commonly used in the field of wheeled vehicles undergoes this torque and deforms.
  • the guide wheels which are in contact with the planar support, pivot together in the direction towards which the user wishes to move.
  • the guide wheels are at the origin of the pivoting of the first part of the vehicle, by rotation of the latter around the point of contact between the flat support and the guided wheel which is at the rear of the vehicle.
  • the turning radius of such a vehicle is directly linked to the turning amplitude of the guide wheels.
  • a disadvantage of this vehicle is that to take a turn, the user must exert a significant asymmetrical force on the board so as to tilt it laterally. Due to the resilient elastic torque created by the elastic deformation of the articulated support means, the greater the turn to be taken and the more the asymmetrical supports on the board must be strong.
  • the difficulty of maneuvering such a board directly depends on the importance of the efforts which the user must provide to obtain a given deflection of the guide wheels.
  • the object of the present invention is to provide a wheeled vehicle with improved maneuverability, with which the changes of direction of the vehicle can be carried out without having to provide as great a force as with the planks of the prior art.
  • the vehicle on casters of the invention is essentially characterized in that the vehicle being placed by all its wheels on a flat support, the distance between the second support area and the support is greater than the distance between the first support area and said support and in that the guided wheel (s) have (s) a diameter greater than the diameter guide wheels.
  • the rotation torque of the board is in fact an increasing function in absolute value of the product of the force applied by the user at a point in the second support zone offset from the longitudinal axis, by the distance between this fulcrum and the point of contact between the guided wheel and the flat support.
  • the fact that the guided wheel (s) has (s) a diameter greater than the diameter of the guiding wheels is one of the preferred means allowing the distance between the second support zone and the flat support to be greater than the distance between the first support zone and the planar support.
  • the diameter of the guided wheel larger than the diameter of the guiding wheels allows on the one hand to raise the second support zone relative to the first support zone while having a large wheel diameter at the level of the guided wheel which is normally the oriented wheel forward when using the wheeled vehicle.
  • This larger diameter of the guided wheel allows the vehicle, the guided wheel of which is positioned at the front of the vehicle, to pass obstacles of relatively larger size than if this guided wheel had a diameter less than or equal to the diameter of the guide wheels ( for a given diameter of guide wheels and substantially identical for all guide wheels).
  • the diameter of the guided wheel is chosen to be 20 to 60% greater than the diameter of the guide wheels.
  • the maneuverability of the board and of the wheeled vehicle of the invention is therefore increased compared to the boards of the prior art because in order to pivot the board of the invention, the user must exert less force on the second zone of support which is preferably arranged at the front of the board, relative to its direction of movement.
  • the fact that the first support zone is particularly close to the planar support relative to the second end makes it possible to lower the center of gravity of the board and bring it closer to the planar support.
  • the guide wheels which are preferably at the rear of the board with respect to its direction of advance have increased stability and the uncontrolled rolling movement of the board is minimized.
  • the pivoting forces of the board applied to this first support area have an effect less on the lateral pivoting of the board than the pivoting forces applied on the second support zone.
  • the user of the vehicle according to the invention will therefore preferentially use his rear foot to rest on the first support area which is close to the support and his front foot to rest on the second support area which is distant support .
  • the front foot will exert efforts in the second support zone in particular to maneuver and control the direction of the vehicle and the rear foot will be particularly used to generate forces in the first support zone and stabilize the vehicle longitudinally.
  • the second part of the board being distant from the running surface, the maximum amplitude of lateral rotation of the second part of the board around the point (s) of contact (s) between the guided wheel (s) and the running surface is increased.
  • the wheeled vehicle according to the invention can reach amplitudes of lateral pivoting of the board with respect to the rolling plane hitherto not achieved by vehicles of the prior art.
  • the amplitude of maximum lateral inclination of the board around its longitudinal axis relative to an axis perpendicular to the running plane can range from -30 ° to + 30 °, preferably from -40 ° to + 40 °, and preferably from -45 ° to + 45 °. Thanks to this high amplitude of inclination, the vehicle according to the invention provides particularly resistant supports including when it is used when cornering. This vehicle is therefore particularly suitable for slalom.
  • the amplitude of lateral inclination of the board can be increased by providing that the board has a maximum width which is located closer to the guided wheel than the guide wheels.
  • the wheeled vehicle according to the invention is therefore more stable than the vehicles of the prior art, while having increased maneuverability when cornering.
  • the vehicle according to the invention has a single guided wheel, however this vehicle can have several guided wheels, having a single identical diameter between all the guided wheels.
  • the guided wheel is rotatably mounted on an axis fixedly connected relative to the board, this guided wheel will hereinafter be called the fixed wheel.
  • FIG. 1 represents a side view of the vehicle according to the invention
  • FIG. 2 represents a top view of the vehicle according to the invention
  • Figure 3 shows a cross-sectional view along an axis AA of the vehicle according to the invention
  • FIG. 4 represents a partial top view of the second end of the vehicle according to a particular embodiment of the invention.
  • the invention relates to a wheeled vehicle 1.
  • a board 2 is supported by two guide wheels (or directional wheels) 4, 5 placed near a first longitudinal end 2a of the board 2 and a fixed wheel 6 placed near a second longitudinal end 2b of the board 2
  • the fixed wheel is always in the main axis of the vehicle 1 which is also the axis of movement of the vehicle 1.
  • the fixed wheel 6 is carried by a rotation axis 9 which is itself fixedly connected to a part in the form of yoke 9a.
  • the yoke-shaped part 9a is fixedly mounted on the second longitudinal end 2b of the board 2 which constitutes its front part.
  • This yoke piece 9a generally has a fixed length but can also have a variable length depending on whether one wishes to approach or move the wheel away fixed relative to the board. This latter embodiment advantageously makes it possible to produce a vehicle 1 with variable longitudinal inclination of the board 2 and obtain an optimum compromise between maneuverability and stability of the vehicle 1.
  • the guiding wheels 4, 5 are respectively mounted for rotation about their own axes of rotation 7, 8.
  • the guide wheels are fixed to the board 2 in a conventional manner by an articulated support means 22 well known to those skilled in the art and widely marketed which is suitable for simultaneously orienting the guide wheels in directions substantially parallel to one another.
  • the board has an upper face 3 provided with first and second support zones 3a, 3b, arranged between the fixed wheel and the guide wheels to allow the placement of the feet of a user. These support zones 3a and 3b are generally covered with an anti-slip coating.
  • the first support area 3a of feet is located near the first longitudinal end 2a of the board 2 and the second support area 3b of feet is located near the second longitudinal end 2b of the board 2 and away from the first end 2a of the board 2.
  • the vehicle is adapted so that when it is placed by all its wheels on a flat support 18, the distance between the second support zone 3b and the support 18 is greater than the distance between the first support zone 3a and said support 18.
  • This result can be obtained by using a board with a non-planar longitudinal profile and / or preferably by inclining the board 2 longitudinally relative to its running surface which is constituted by the ground / support 18.
  • the running surface of the vehicle is defined by the vertical ends of the three wheels which are furthest from the board and which are located opposite the upper face 3 of the board with respect to the board 2.
  • the board 2 of FIG. 1 is inclined by using a relatively long yoke-shaped piece 9a which makes it possible to position the axis 9 of rotation of the fixed wheel 6 away from the board 2 and using a fixed wheel 6 of larger diameter than the guide wheels.
  • the guided wheel (s) also called fixed wheel (s) has (s) a diameter 20% to 60% greater than the diameter of the guide wheels (4, Typically, for a distance between the fixed wheel 6 and the guide wheels 4, 5 of approximately 800 to 950 millimeters, the diameter of the guide wheels is approximately 100 millimeters and the fixed wheel 6 is chosen to have a diameter approximately 140 millimeters and preferably approximately 160 millimeters.
  • the minimum distance Db from the board 2 to the support 18, at the location of its fixed wheel 6 is approximately 10.5 centimeters and the minimum distance Da from the board 2 to the support 18, at the location of its guide wheels 4 is approximately 6.5 centimeters.
  • the distance between the second support area 3b and the support 18 is greater than the distance between the first support area 3a and said support 18 by at least 2% and preferably by at least 4% 20% of the distance between these first and second support zones.
  • the choice of the difference in height between the support zones 3a and 3b relative to the support 18 depends on the desired type of use of the vehicle 2.
  • a means will advantageously be used for adjusting the longitudinal inclination of the board with respect to the support making it possible to tilt the board with respect to the support 18 according to a variable slope ranging from at least 2% to preferably 20%.
  • the tilt adjustment means is adapted to allow indexing of the position of the board so that it has a fixed slope chosen between 2 and 20%. The limit of 20% can be increased to meet specific needs, without departing from the present invention.
  • the board 2 is flat and inclined relative to the support 18 according to a slope of at least 2% and preferably between 4% and 20%.
  • the articulated support means 22 comprises an elastic means 22a adapted to generate an elastic torque for returning the board 2 to a lateral pivoting position of the board 2 in which the own axis of rotation 9 of the wheel (s) guided (s) 6 is substantially parallel to the support 18.
  • This elastic means 22a is preferably a spring prestressed by an adjusting screw so that the elastic torque generated by the elastic means 22a for a given lateral pivoting position of the board 2 can be adjusted.
  • the maximum width L of the board 2 is located closer to the fixed wheel 6 than the guide wheels 4, 5 so as to increase the lever arm effect when pressed in the second support zone 3b .
  • the board 2 has a control handle 10 fixed on the upper face 3, at a greater proximity to the fixed wheel 6 than the guide wheels 4, 5.
  • This handle is preferably offset relative to a plane of rotation of the fixed wheel 6 and is preferably fixed next to the fixed wheel 6.
  • the handle 10 in particular allows the user to stabilize on the board.
  • Figure 3 shows a section along an axis AA of the board inclined at about 45 ° relative to the vertical. As shown in this figure, the width of the board is maximum near the fixed wheel and is provided to allow the board to tilt at most 45 ° from the vertical without risking contact between the board 2 and the planar support 18.
  • the vehicle is motorized by a heat engine, or preferably electric.
  • the coupling of the motor with the fixed driving wheel 6 can be achieved by friction of a motor roller on the wheel, by meshing of the motor on a drive pinion integral with the axis of rotation of the fixed wheel, or by belt.
  • the engine drive system preferably comprises a clutch means.
  • the motor can for example be mounted on a plate articulated with respect to the board 2. In a first angular position of the plate, the motor is engaged on the fixed wheel 6 or on a means of driving the fixed wheel 6. In a second angular position of the plate, the engine is disengaged from the fixed wheel 6 or from the drive means of the fixed wheel 6.
  • a clutch control of the engine preferably includes a control lever for tensioning a clutch cable . This tension force pushes the engine to come into gear with the fixed wheel 6 or the drive means of the fixed wheel 6. An elastic return means is compressed when the engine is engaged and this as long as the clutch cable remains taut.
  • the passage from the first angular position to the second, that is to say the passage from a engaged position to a disengaged position is carried out by releasing the tension forces exerted by the control lever on the clutch cable. Under the effect of the elastic return force exerted by the elastic return means, the plate pivots until allowing the complete disengaging of the motor.
  • the motor is preferably powered by batteries which can be placed in the control handle 10 which is a cylindrical tube or directly fixed to the board or carried in a backpack.
  • the motor is controlled by a switch and / or a speed variator.
  • the switch and / or the variator can be positioned on the board 2 to be controlled by the feet or are preferably positioned on the control handle 10, near the handle.
  • the switch and / or variator is preferably integrated in the handle, this handle being able to be movable relative to the handle 10.
  • the handle is for example rotatably mounted on the handle 10 which is substantially vertical and / or perpendicular to the board 2.
  • the fixed wheel can be replaced by two fixed wheels which are mutually parallel and of the same diameter, mounted on the same axis of rotation.
  • these fixed wheels are either juxtaposed with one another, or distant from one another.
  • FIG. 4 shows the second end 2b of the vehicle 1 when these two so-called guided wheels 6a and 6b are distant from each other and carried by the same axis of rotation 9.
  • This axis is for example assembled on the second part 2b of the vehicle, generally at the front of the board 2, by a pivot link 11 substantially parallel to the longitudinal axis 25.
  • This pivot link is preferably aligned with this longitudinal axis 25 so as to facilitate the lateral inclination of the board in the turns.
  • the latter can be mounted on an articulated support making it possible for example to tilt these two guided wheels laterally by a movement of tilt in a vertical plane.
  • This articulated support being adapted so that the axes of rotation of the guided wheels are mobile simultaneously and only in a vertical plane, the wheels always remaining substantially parallel to each other.
  • This embodiment allows the guided wheels to be always oriented in the axis of the board and always simultaneously in contact with the ground, the direction of the vehicle being only given by the guide wheels.
  • One or more shock absorbers can be added to this articulated support to promote simultaneous contact of the guided wheels on the ground.
  • the normal position for using the vehicle consists in positioning the guide wheels or directional wheels at the rear of the vehicle with respect to its direction of advance with the upper face of the board facing upwards and the wheel (s) ( s) steered / fixed positioned in the direction of movement of the vehicle.
  • the user inclines the board 2 with respect to the ground 18, on the side towards which he wishes to turn.
  • the user displaces his weight on the side of the board towards which he wishes to rotate and creates a torque of rotation of the board 2 around its longitudinal axis 25.
  • These efforts create a pivoting torque of the board around an axis of longitudinal pivot 26 substantially parallel to the main axis of the board 2.
  • the back of the board 2 then hunts on the side opposite the side towards which the user wishes to turn.
  • the whole of the vehicle 1 pivots around the point of contact 19 between the fixed wheel 6 front of the board 2 and the ground or support 18 and the front of the board 2 is oriented towards the side of the desired turn.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Handcart (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

The inventive roller vehicle (1) comprises a board (2) for placing a user's feet supported by several guiding wheels (4, 5) arranged near the first longitudinal side (2a) of the board (2) and at least one guided wheel (6) arranged near the second longitudinal (2b) of the board (2), Each wheel (4, 5, 6) is provided with its own axis of rotation (7, 8, 9) on which it is rotationally mounted. The board (2) consists of a first and second foot bearing areas (3a, 3b) which are arranged near the first and second longitudinal sides (2a) of the board (2) respectively. The distance between the second bearing area (3b) and the support (18) is greater than the distance between the first bearing area (3a) and said support (18). The diameter of the guided wheel is greater than the diameter of the guiding wheels.

Description

TITRE : VEHICULE A ROULETTES TITLE: WHEELED VEHICLE
La présente invention concerne, de façon générale un véhicule à roulettes adapté pour les déplacements en milieu urbain et la pratique de sport.The present invention relates, in general, to a wheeled vehicle suitable for traveling in an urban environment and practicing sport.
Plus particulièrement, l'invention concerne un véhicule à roulettes comprenant une planche adaptée pour permettre le placement des pieds d'un utilisateur du véhicule sur une face supérieure de la planche en position normale d'utilisation et supportée par plusieurs roues guidantes placées à proximité d'une première extrémité longitudinale de la planche et au moins une roue guidée placée à proximité d'une seconde extrémité longitudinale de la planche, chaque roue ayant un axe de rotation propre autour duquel elle est montée à rotation, les axes de rotation des roues guidantes étant reliés à la planche par un moyen support articulé et étant mobiles ensemble par rapport à la planche selon un mouvement d'orientation directionnel de chaque roue guidante, et l'axe de rotation de la (des) roue (s) guidée (s) étant relié à la planche, la planche comportant une première zone d'appui de pieds située sur la face supérieure de la planche à proximité de la première extrémité longitudinale de la planche et une seconde zone d' appui de pieds située sur la face supérieure de la planche, à proximité de la seconde extrémité longitudinale de la planche et éloignée longitudinalement de la première extrémité de la planche, ces zones d'appuis étant situées entre la (les) roue (s) guidée (s) et les roues guidantes .More particularly, the invention relates to a wheeled vehicle comprising a board adapted to allow the placement of the feet of a user of the vehicle on an upper face of the board in the normal position of use and supported by several guide wheels placed near the '' a first longitudinal end of the board and at least one guided wheel placed near a second longitudinal end of the board, each wheel having its own axis of rotation around which it is rotatably mounted, the axes of rotation of the guiding wheels being connected to the board by an articulated support means and being movable together with respect to the board in a directional orientation movement of each guide wheel, and the axis of rotation of the guided wheel (s) being connected to the board, the board comprising a first foot support zone located on the upper face of the board near the first re longitudinal end of the board and a second foot support zone located on the upper face of the board, near the second longitudinal end of the board and longitudinally distant from the first end of the board, these support zones being located between the guided wheel (s) and the guide wheels.
De nombreux véhicules à roulettes ont été développés et sont particulièrement adaptés pour les déplacements en zones urbaines car ils sont faciles à mettre en œuvre, silencieux, peu encombrant, particulièrement maniables, relativement rapides et non polluants car généralement propulsés musculairement ou électriquement. Ces véhicules à roulettes sont également utilisés pour la pratique de sports.Many wheeled vehicles have been developed and are particularly suitable for travel in urban areas because they are easy to implement, silent, compact, particularly manoeuvrable, relatively quick and non-polluting as they are generally powered by muscles or electrically. These wheeled vehicles are also used for sports.
C'est la raison pour laquelle de nombreux fabricants de véhicules à roulettes ont développé diverses solutions visant à produire des véhicules à roulettes peu coûteux, robustes, légers, et maniables. Un véhicule à roulettes du type précédemment défini, est par exemple décrit dans le document brevet WO 00/03773 de Micro Mobility Systems AG. Ce véhicule est doté de trois roues portant une planche sur laquelle peut être fixé un manche de commande. Une roue guidée est positionnée à une seconde extrémité longitudinale de la planche et deux roues guidantes sont positionnées à une première extrémité de la planche. L'utilisateur du véhicule se positionne sur la planche, avec les roues guidantes orientées dans le sens de l'avance et d'un pied, pousse le véhicule en prenant appui régulièrement sur le sol, à côté de la planche jusqu'à ce que sa vitesse soit suffisante pour le maintenir en équilibre sur le véhicule.This is the reason why many wheeled vehicle manufacturers have developed various solutions aimed at producing inexpensive, robust, light, and maneuverable wheeled vehicles. A wheeled vehicle of the type defined above is for example described in patent document WO 00/03773 from Micro Mobility Systems AG. This vehicle has three wheels carrying a board on which a control stick can be fixed. A guided wheel is positioned at a second longitudinal end of the board and two guide wheels are positioned at a first end of the board. The user of the vehicle is positioned on the board, with the guiding wheels oriented in the direction of advance and with one foot, pushes the vehicle by taking regular support on the ground, next to the board until its speed is sufficient to keep it balanced on the vehicle.
L'utilisateur dirige le véhicule en déportant ses points d'appuis du côté de la planche vers lequel il souhaite se diriger. Cette dissymétrie de répartition des appuis sur le véhicule produit un couple de rotation de la planche selon un axe de pivotement longitudinal de la planche. La planche pivote latéralement autour de l'axe de pivotement longitudinal de la planche passant par le point de contact entre le sol aussi appelé support plan et la roue guidée. Corrélativement, le moyen support articulé qui est généralement un parallélogramme articulé ou tout autre moyen support communément utilisé dans le domaine des véhicules à roulettes subit ce couple de rotation et se déforme. Sous l'effet de la déformation du moyen support articulé, les roues guidantes qui sont en contact avec le support plan, pivotent ensemble dans la direction vers laquelle l'utilisateur souhaite se déplacer. Les roues guidantes sont à l'origine du pivotement de la première partie du véhicule, par rotation de celui-ci autour du point de contact entre le support plan et la roue guidée qui se trouve à l'arrière du véhicule.The user steers the vehicle by moving his support points to the side of the board to which he wishes to go. This asymmetry of distribution of the supports on the vehicle produces a torque of rotation of the board along a longitudinal pivot axis of the board. The board pivots laterally around the longitudinal pivot axis of the board passing through the point of contact between the ground also called the plane support and the guided wheel. Correlatively, the articulated support means which is generally an articulated parallelogram or any other support means commonly used in the field of wheeled vehicles undergoes this torque and deforms. Under the effect of the deformation of the articulated support means, the guide wheels which are in contact with the planar support, pivot together in the direction towards which the user wishes to move. The guide wheels are at the origin of the pivoting of the first part of the vehicle, by rotation of the latter around the point of contact between the flat support and the guided wheel which is at the rear of the vehicle.
Le rayon de braquage d'un tel véhicule est lié directement à l'amplitude de braquage des roues guidantes. Plus la planche est inclinée latéralement par rapport au support plan et plus le braquage des roues guidantes sera important. Un inconvénient de ce véhicule est que pour prendre un virage, l'utilisateur doit exercer une force dissymétrique importante sur la planche de façon à l'incliner latéralement. En raison du couple élastique résistant créé par la déformation élastique du moyen support articulé, plus le virage à prendre est important et plus les appuis dissymétriques sur la planche doivent être puissants. La difficulté de manœuvre d'une telle planche dépend directement de l'importance des efforts que doit fournir l'utilisateur pour obtenir un braquage donné des roues guidantes.The turning radius of such a vehicle is directly linked to the turning amplitude of the guide wheels. The more the board is tilted laterally with respect to the flat support, the greater the deflection of the guide wheels. A disadvantage of this vehicle is that to take a turn, the user must exert a significant asymmetrical force on the board so as to tilt it laterally. Due to the resilient elastic torque created by the elastic deformation of the articulated support means, the greater the turn to be taken and the more the asymmetrical supports on the board must be strong. The difficulty of maneuvering such a board directly depends on the importance of the efforts which the user must provide to obtain a given deflection of the guide wheels.
Dans ce contexte, la présente invention a pour but de proposer un véhicule à roulettes à manœuvrabilité améliorée, avec lequel les changements de directions du véhicule puissent être effectués sans avoir à fournir des efforts aussi importants qu'avec les planches de l'art antérieur.In this context, the object of the present invention is to provide a wheeled vehicle with improved maneuverability, with which the changes of direction of the vehicle can be carried out without having to provide as great a force as with the planks of the prior art.
A cette fin, véhicule à roulettes de l'invention, par ailleurs conforme à la définition générique qu'en donne le préambule ci-dessus, est essentiellement caractérisé en ce que le véhicule étant posé par toutes ses roues sur un support plan, la distance entre la seconde zone d'appui et le support est supérieure à la distance entre la première zone d'appui et ledit support et en ce que la (les) roue (s) guidée (s) possède (nt) un diamètre supérieur au diamètre des roues guidantes . Le fait que la distance entre la seconde zone d' appui et le support plan constituant un plan de roulement soit supérieure à la distance entre la première zone d'appui et le support plan, augmente la maniabilité de la planche selon l'invention par rapport aux planches de l'art antérieur. En effet, pour une force d'appui donnée constante exercée par l'utilisateur sur la face supérieure de la planche, plus la distance entre la seconde zone d'appui et le support plan est importante et plus le couple de rotation de la planche autour de son axe longitudinal est important. Le couple de rotation de la planche est en effet une fonction croissante en valeur absolue du produit de la force appliquée par l'utilisateur en un point de la seconde zone d'appui décalé par rapport à l'axe longitudinal, par la distance entre ce point d'appui et le point de contact entre la roue guidée et le support plan. Le fait que la (les) roue (s) guidée (s) possède (nt) un diamètre supérieur au diamètre des roues guidantes est un des moyens préférentiels permettant que la distance entre la seconde zone d' appui et le support plan soit supérieure à la distance entre la première zone d'appui et le support plan. En effet, le diamètre de roue guidée plus important que le diamètre des roues guidantes permet d'une part de surélever la seconde zone d' appui par rapport à la première zone d' appui tout en ayant un diamètre de roue important au niveau de la roue guidée qui est normalement la roue orientée vers l'avant lors de l'utilisation du véhicule à roulettes. Ce diamètre plus important de la roue guidée permet au véhicule dont la roue guidée est positionnée à l'avant du véhicule, de passer des obstacles de taille relativement plus importants que si cette roue guidée avait un diamètre inférieur ou égal au diamètre des roues guidantes (pour un diamètre de roues guidantes donné et sensiblement identique pour toutes les roues guidantes) . Avantageusement le diamètre de la roue guidée est choisi pour être supérieur de 20 à 60% par rapport au diamètre des roues guidantes. La maniabilité de la planche et du véhicule à roulettes de l'invention est donc accrue par rapport aux planches de l'art antérieur car pour pivoter la planche de l'invention, l'utilisateur doit exercer un effort moindre sur la seconde zone d' appui qui est préférentiellement disposée à l'avant de la planche, par rapport à son sens de déplacement.To this end, the vehicle on casters of the invention, moreover conforming to the generic definition given in the preamble above, is essentially characterized in that the vehicle being placed by all its wheels on a flat support, the distance between the second support area and the support is greater than the distance between the first support area and said support and in that the guided wheel (s) have (s) a diameter greater than the diameter guide wheels. The fact that the distance between the second support area and the planar support constituting a running surface is greater than the distance between the first support area and the planar support, increases the maneuverability of the board according to the invention compared to to the plates of the prior art. Indeed, for a constant given bearing force exerted by the user on the upper face of the board, the greater the distance between the second bearing area and the planar support and the greater the torque of rotation of the board around of its longitudinal axis is important. The rotation torque of the board is in fact an increasing function in absolute value of the product of the force applied by the user at a point in the second support zone offset from the longitudinal axis, by the distance between this fulcrum and the point of contact between the guided wheel and the flat support. The fact that the guided wheel (s) has (s) a diameter greater than the diameter of the guiding wheels is one of the preferred means allowing the distance between the second support zone and the flat support to be greater than the distance between the first support zone and the planar support. Indeed, the diameter of the guided wheel larger than the diameter of the guiding wheels allows on the one hand to raise the second support zone relative to the first support zone while having a large wheel diameter at the level of the guided wheel which is normally the oriented wheel forward when using the wheeled vehicle. This larger diameter of the guided wheel allows the vehicle, the guided wheel of which is positioned at the front of the vehicle, to pass obstacles of relatively larger size than if this guided wheel had a diameter less than or equal to the diameter of the guide wheels ( for a given diameter of guide wheels and substantially identical for all guide wheels). Advantageously, the diameter of the guided wheel is chosen to be 20 to 60% greater than the diameter of the guide wheels. The maneuverability of the board and of the wheeled vehicle of the invention is therefore increased compared to the boards of the prior art because in order to pivot the board of the invention, the user must exert less force on the second zone of support which is preferably arranged at the front of the board, relative to its direction of movement.
Il a été avantageusement remarqué que le fait que la première zone d'appui soit particulièrement proche du support plan par rapport à la seconde extrémité permet d'abaisser le centre de gravité de la planche et de le rapprocher du support plan. Ainsi, les roues guidantes qui sont préférentiellement à l'arrière de la planche par rapport à son sens d'avance ont une stabilité accrue et le mouvement de roulis incontrôlé de la planche est minimisé. De plus, les efforts de pivotement de la planche appliqués sur cette première zone d'appui ont un effet moindre sur le pivotement latéral de la planche que les efforts de pivotement appliqués sur la seconde zone d' appui . L'utilisateur du véhicule selon l'invention utilisera donc préférentiellement son pied arrière pour s'appuyer sur la première zone d'appui qui est proche du support et son pied avant pour s'appuyer sur la seconde zone d'appui qui est éloignée support. Dans ce cas, le pied avant exercera des efforts dans la seconde zone d'appui pour notamment manœuvrer et contrôler la direction du véhicule et le pied arrière sera particulièrement utilisé pour générer des efforts dans la première zone d'appui et stabiliser longitudinalement le véhicule.It has been advantageously noted that the fact that the first support zone is particularly close to the planar support relative to the second end makes it possible to lower the center of gravity of the board and bring it closer to the planar support. Thus, the guide wheels which are preferably at the rear of the board with respect to its direction of advance have increased stability and the uncontrolled rolling movement of the board is minimized. In addition, the pivoting forces of the board applied to this first support area have an effect less on the lateral pivoting of the board than the pivoting forces applied on the second support zone. The user of the vehicle according to the invention will therefore preferentially use his rear foot to rest on the first support area which is close to the support and his front foot to rest on the second support area which is distant support . In this case, the front foot will exert efforts in the second support zone in particular to maneuver and control the direction of the vehicle and the rear foot will be particularly used to generate forces in the first support zone and stabilize the vehicle longitudinally.
De plus, grâce à l'invention, la seconde partie de la planche étant éloignée du plan de roulement, l'amplitude maximale de rotation latérale de la seconde partie de la planche autour du (des) point (s) de contact (s) entre la (les) roue (s) guidée (s) et le plan de roulement est accrue. Le véhicule à roulettes selon l'invention peut atteindre des amplitudes de pivotement latéral de la planche par rapport au plan de roulement jusqu'alors non atteintes par les véhicules de l'art antérieur.In addition, thanks to the invention, the second part of the board being distant from the running surface, the maximum amplitude of lateral rotation of the second part of the board around the point (s) of contact (s) between the guided wheel (s) and the running surface is increased. The wheeled vehicle according to the invention can reach amplitudes of lateral pivoting of the board with respect to the rolling plane hitherto not achieved by vehicles of the prior art.
L'amplitude d'inclinaison latérale maximale de la planche autour de son axe longitudinal par rapport à un axe perpendiculaire au plan de roulement peut aller de -30° à + 30°, préférentiellement de -40° à +40°, et préférentiellement de -45° à +45°. Grâce à cette forte amplitude d'inclinaison, le véhicule selon l'invention procure des appuis particulièrement résistants y compris lorsque celui-ci est utilisé en virage. Cette véhicule est donc particulièrement adaptée pour faire du slalom.The amplitude of maximum lateral inclination of the board around its longitudinal axis relative to an axis perpendicular to the running plane can range from -30 ° to + 30 °, preferably from -40 ° to + 40 °, and preferably from -45 ° to + 45 °. Thanks to this high amplitude of inclination, the vehicle according to the invention provides particularly resistant supports including when it is used when cornering. This vehicle is therefore particularly suitable for slalom.
L'amplitude d'inclinaison latérale de la planche peut être accrue en prévoyant que la planche ait une largeur maximale qui soit située à une plus grande proximité de la roue guidée que des roues guidantes.The amplitude of lateral inclination of the board can be increased by providing that the board has a maximum width which is located closer to the guided wheel than the guide wheels.
En conséquence, le véhicule à roulettes selon l'invention est donc plus stable que les véhicules de l'art antérieur, tout en ayant une maniabilité en virage accrue.Consequently, the wheeled vehicle according to the invention is therefore more stable than the vehicles of the prior art, while having increased maneuverability when cornering.
Préférentiellement le véhicule selon l'invention possède une seule roue guidée toutefois ce véhicule peut posséder plusieurs roues guidées, ayant un diamètre unique identique entre toutes les roues guidées .Preferably, the vehicle according to the invention has a single guided wheel, however this vehicle can have several guided wheels, having a single identical diameter between all the guided wheels.
Dans un mode de réalisation particulier qui est décrit par la suite, la roue guidée est montée à rotation sur un axe relié fixement par rapport à la planche, cette roue guidée sera par la suite appelée roue fixe.In a particular embodiment which is described below, the guided wheel is rotatably mounted on an axis fixedly connected relative to the board, this guided wheel will hereinafter be called the fixed wheel.
D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels: la figure 1 représente une vue de côté du véhicule selon l'invention ; la figure 2 représente une vue de dessus du véhicule selon l'invention ; la figure 3 représente une vue en coupe transversale selon un axe A-A du véhicule selon l'invention ; la figure 4 représente une vue de dessus partielle de la seconde extrémité du véhicule selon un mode particulier de réalisation de l'invention.Other characteristics and advantages of the invention will emerge clearly from the description which is given below, by way of indication and in no way limiting, with reference to the accompanying drawings, in which: FIG. 1 represents a side view of the vehicle according to the invention; FIG. 2 represents a top view of the vehicle according to the invention; Figure 3 shows a cross-sectional view along an axis AA of the vehicle according to the invention; FIG. 4 represents a partial top view of the second end of the vehicle according to a particular embodiment of the invention.
Comme annoncé précédemment, et comme représenté sur la figure 2, l'invention concerne un véhicule à roulettes 1.As previously announced, and as shown in FIG. 2, the invention relates to a wheeled vehicle 1.
Une planche 2 est supportée par deux roues guidantes (ou roue directionnelles) 4, 5 placées à proximité d'une première extrémité longitudinale 2a de la planche 2 et une roue fixe 6 placée à proximité d'une seconde extrémité longitudinale 2b de la planche 2. La roue fixe est toujours dans l'axe principal du véhicule 1 qui est également l'axe de déplacement du véhicule 1. La roue fixe 6 est portée par un axe de rotation 9 qui est lui même relié fixement à une pièce en forme de chape 9a. La pièce en forme de chape 9a est montée fixement sur la seconde extrémité longitudinale 2b de la planche 2 qui constitue sa partie avant. Cette pièce en chape 9a a généralement une longueur fixe mais peut également avoir une longueur variable selon que l'on souhaite approcher ou éloigner la roue fixe par rapport à la planche. Ce dernier mode de réalisation permet avantageusement de réaliser un véhicule 1 à inclinaison longitudinale variable de la planche 2 et obtenir un compromis optimum entre manœuvrabilité et stabilité du véhicule 1.A board 2 is supported by two guide wheels (or directional wheels) 4, 5 placed near a first longitudinal end 2a of the board 2 and a fixed wheel 6 placed near a second longitudinal end 2b of the board 2 The fixed wheel is always in the main axis of the vehicle 1 which is also the axis of movement of the vehicle 1. The fixed wheel 6 is carried by a rotation axis 9 which is itself fixedly connected to a part in the form of yoke 9a. The yoke-shaped part 9a is fixedly mounted on the second longitudinal end 2b of the board 2 which constitutes its front part. This yoke piece 9a generally has a fixed length but can also have a variable length depending on whether one wishes to approach or move the wheel away fixed relative to the board. This latter embodiment advantageously makes it possible to produce a vehicle 1 with variable longitudinal inclination of the board 2 and obtain an optimum compromise between maneuverability and stability of the vehicle 1.
Les roues guidantes 4, 5 sont respectivement montées à rotation autour d'axes propres de rotation 7, 8.The guiding wheels 4, 5 are respectively mounted for rotation about their own axes of rotation 7, 8.
Les roues guidantes sont fixées à la planche 2 de façon conventionnelle par un moyen support articulé 22 bien connu de l'homme de métier et largement commercialisé qui est adapté pour orienter simultanément les roues guidantes selon des directions sensiblement parallèles entre elles.The guide wheels are fixed to the board 2 in a conventional manner by an articulated support means 22 well known to those skilled in the art and widely marketed which is suitable for simultaneously orienting the guide wheels in directions substantially parallel to one another.
La planche comporte une face supérieure 3 dotée de première et seconde zones d'appuis 3a, 3b, disposées entre la roue fixe et les roues guidantes pour permettre le placement des pieds d'un utilisateur. Ces zones d'appuis 3a et 3b sont généralement recouvertes d'un revêtement antiglisse.The board has an upper face 3 provided with first and second support zones 3a, 3b, arranged between the fixed wheel and the guide wheels to allow the placement of the feet of a user. These support zones 3a and 3b are generally covered with an anti-slip coating.
La première zone d'appui 3a de pieds est située à proximité de la première extrémité longitudinale 2a de la planche 2 et la seconde zone d' appui 3b de pieds est située à proximité de la seconde extrémité longitudinale 2b de la planche 2 et éloignée de la première extrémité 2a de la planche 2.The first support area 3a of feet is located near the first longitudinal end 2a of the board 2 and the second support area 3b of feet is located near the second longitudinal end 2b of the board 2 and away from the first end 2a of the board 2.
Le véhicule est adapté pour que lorsqu'il est posé par toutes ses roues sur un support plan 18, la distance entre la seconde zone d'appui 3b et le support 18 soit supérieure à la distance entre la première zone d'appui 3a et ledit support 18.The vehicle is adapted so that when it is placed by all its wheels on a flat support 18, the distance between the second support zone 3b and the support 18 is greater than the distance between the first support zone 3a and said support 18.
Ce résultat peut être obtenu en utilisant une planche dotée d'un profil longitudinal non plan et/ou préférentiellement en inclinant longitudinalement la planche 2 par rapport à son plan de roulement qui est constitué par le sol / support 18. Le plan de roulement du véhicule est défini par les extrémités verticales des trois roues qui sont les plus éloignées de la planche et qui sont situées à l'opposé de la face supérieure 3 de la planche par rapport à la planche 2.This result can be obtained by using a board with a non-planar longitudinal profile and / or preferably by inclining the board 2 longitudinally relative to its running surface which is constituted by the ground / support 18. The running surface of the vehicle is defined by the vertical ends of the three wheels which are furthest from the board and which are located opposite the upper face 3 of the board with respect to the board 2.
La planche 2 de la figure 1 est inclinée en utilisant une pièce en forme de chape 9a relativement longue ce qui permet de positionner l'axe 9 de rotation de la roue fixe 6 à distance de la planche 2 et en utilisant une roue fixe 6 de plus grand diamètre que les roues guidantes . Préférentiellement la (les) roue (s) guidée (s) (aussi appelé (es) roue (s) fixe (s) possède (nt) un diamètre supérieur de 20% à 60% par rapport au diamètre des roues guidantes (4, 5). Typiquement, pour une distance entre la roue fixe 6 et les roues guidantes 4, 5 d'environ 800 à 950 millimètres, le diamètre des roues guidantes est d'environ 100 millimètres et la roue fixe 6 est choisie pour avoir un diamètre d'environ 140 millimètres et préférentiellement d'environ 160 millimètres. Ainsi pour une telle planche 2, la distance minimale Db de la planche 2 au support 18, à l'endroit de sa roue fixe 6 est d'environ 10,5 centimètres et la distance minimale Da de la planche 2 au support 18, à l'endroit de ses roues guidantes 4 est d'environ 6,5 centimètres.The board 2 of FIG. 1 is inclined by using a relatively long yoke-shaped piece 9a which makes it possible to position the axis 9 of rotation of the fixed wheel 6 away from the board 2 and using a fixed wheel 6 of larger diameter than the guide wheels. Preferably the guided wheel (s) (also called fixed wheel (s) has (s) a diameter 20% to 60% greater than the diameter of the guide wheels (4, Typically, for a distance between the fixed wheel 6 and the guide wheels 4, 5 of approximately 800 to 950 millimeters, the diameter of the guide wheels is approximately 100 millimeters and the fixed wheel 6 is chosen to have a diameter approximately 140 millimeters and preferably approximately 160 millimeters. Thus for such a board 2, the minimum distance Db from the board 2 to the support 18, at the location of its fixed wheel 6 is approximately 10.5 centimeters and the minimum distance Da from the board 2 to the support 18, at the location of its guide wheels 4 is approximately 6.5 centimeters.
En d'autres termes la distance entre la seconde zone d'appui 3b et le support 18 est supérieure à la distance entre la première zone d' appui 3a et ledit support 18 d'au moins 2% et préférentiellement d'au moins 4% à 20% de la distance séparant ces première et seconde zones d'appuis.In other words, the distance between the second support area 3b and the support 18 is greater than the distance between the first support area 3a and said support 18 by at least 2% and preferably by at least 4% 20% of the distance between these first and second support zones.
Le choix de la différence de hauteur entre les zones d'appuis 3a et 3b par rapport au support 18 dépend du type d'utilisation souhaitée du véhicule 2. Ainsi lorsque l'utilisation du véhicule n'est pas parfaitement définie on utilisera avantageusement un moyen de réglage de l'inclinaison longitudinale de la planche par rapport au support permettant d' incliner la planche par rapport au support 18 selon une pente variable allant d'au moins 2% à préférentiellement 20%. Le moyen de réglage de l'inclinaison est adapté pour permettre une indexation de la position de la planche pour que celle-ci ait une pente fixe choisie entre 2 et 20%. La limite de 20% peut être augmentée pour répondre à des besoins spécifiques, sans départir de la présente invention.The choice of the difference in height between the support zones 3a and 3b relative to the support 18 depends on the desired type of use of the vehicle 2. Thus when the use of the vehicle is not perfectly defined, a means will advantageously be used for adjusting the longitudinal inclination of the board with respect to the support making it possible to tilt the board with respect to the support 18 according to a variable slope ranging from at least 2% to preferably 20%. The tilt adjustment means is adapted to allow indexing of the position of the board so that it has a fixed slope chosen between 2 and 20%. The limit of 20% can be increased to meet specific needs, without departing from the present invention.
Préférentiellement, la planche 2 est plane et inclinée par rapport au support 18 selon une pente d'au moins 2% et préférentiellement entre 4% et 20%. Le moyen support articulé 22 comporte un moyen élastique 22a adapté pour générer un couple élastique de rappel de la planche 2 dans une position de pivotement latéral de la planche 2 dans laquelle l'axe de rotation 9 propre de la (des) roue (s) guidée (s) 6 est sensiblement parallèle au support 18. Ce moyen élastique 22a est préférentiellement un ressort précontraint par une vis de réglage de façon que le couple élastique généré par le moyen élastique 22a pour une position de pivotement latéral de la planche 2 donnée puisse être ajusté.Preferably, the board 2 is flat and inclined relative to the support 18 according to a slope of at least 2% and preferably between 4% and 20%. The articulated support means 22 comprises an elastic means 22a adapted to generate an elastic torque for returning the board 2 to a lateral pivoting position of the board 2 in which the own axis of rotation 9 of the wheel (s) guided (s) 6 is substantially parallel to the support 18. This elastic means 22a is preferably a spring prestressed by an adjusting screw so that the elastic torque generated by the elastic means 22a for a given lateral pivoting position of the board 2 can be adjusted.
La largeur maximale L de la planche 2 est située à plus grande proximité de la roue fixe 6 que des roues guidantes 4, 5 de façon à augmenter l'effet de bras de levier lors d'un appui dans la seconde zone d'appui 3b.The maximum width L of the board 2 is located closer to the fixed wheel 6 than the guide wheels 4, 5 so as to increase the lever arm effect when pressed in the second support zone 3b .
Selon un mode particulier de réalisation de l'invention, la planche 2 possède un manche de commande 10 fixé sur la face supérieure 3, à une plus grande proximité de la roue fixe 6 que des roues guidantes 4, 5. Ce manche est préférentiellement décalé par rapport à un plan de rotation de la roue fixe 6 et est préférentiellement fixé à côté de la roue fixe 6. Le manche 10 permet notamment à l'utilisateur de se stabiliser sur la planche.According to a particular embodiment of the invention, the board 2 has a control handle 10 fixed on the upper face 3, at a greater proximity to the fixed wheel 6 than the guide wheels 4, 5. This handle is preferably offset relative to a plane of rotation of the fixed wheel 6 and is preferably fixed next to the fixed wheel 6. The handle 10 in particular allows the user to stabilize on the board.
La figure 3 montre une coupe selon un axe A-A de la planche inclinée à environ 45° par rapport à la verticale. Comme le montre cette figure, la largeur de la planche est maximale à proximité de la roue fixe et est prévue pour permettre une inclinaison de la planche d'au plus 45° par rapport à la verticale sans risquer un contact entre la planche 2 et le support plan 18.Figure 3 shows a section along an axis AA of the board inclined at about 45 ° relative to the vertical. As shown in this figure, the width of the board is maximum near the fixed wheel and is provided to allow the board to tilt at most 45 ° from the vertical without risking contact between the board 2 and the planar support 18.
Selon un mode de réalisation particulier, non représenté sur les figures, le véhicule est motorisée par un moteur thermique, ou préférentiellement électrique .According to a particular embodiment, not shown in the figures, the vehicle is motorized by a heat engine, or preferably electric.
Le couplage du moteur avec la roue fixe 6 motrice peut être réalisé par friction d'un galet moteur sur la roue, par engrènement du moteur sur un pignon d'entraînement solidaire de l'axe de rotation de la roue fixe, ou par courroie.The coupling of the motor with the fixed driving wheel 6 can be achieved by friction of a motor roller on the wheel, by meshing of the motor on a drive pinion integral with the axis of rotation of the fixed wheel, or by belt.
Le système d'entraînement du moteur comporte préférentiellement un moyen d'embrayage. Le moteur peut par exemple être montée sur une platine articulée par rapport à la planche 2. Dans une première position angulaire de la platine, le moteur est embrayé sur la roue fixe 6 ou sur un moyen d'entraînement de la roue fixe 6. Dans une seconde position angulaire de la platine, le moteur est débrayé de la roue fixe 6 ou du moyen d'entraînement de la roue fixe 6. Une commande d' embrayage du moteur comporte préférentiellement une manette de commande permettant de tendre un câble d'embrayage. Cette force de tension pousse le moteur à venir embrayer avec la roue fixe 6 ou le moyen d'entraînement de la roue fixe 6. Un moyen de rappel élastique est compressé lorsque le moteur est embrayé et cela tant que le câble d'embrayage reste tendu.The engine drive system preferably comprises a clutch means. The motor can for example be mounted on a plate articulated with respect to the board 2. In a first angular position of the plate, the motor is engaged on the fixed wheel 6 or on a means of driving the fixed wheel 6. In a second angular position of the plate, the engine is disengaged from the fixed wheel 6 or from the drive means of the fixed wheel 6. A clutch control of the engine preferably includes a control lever for tensioning a clutch cable . This tension force pushes the engine to come into gear with the fixed wheel 6 or the drive means of the fixed wheel 6. An elastic return means is compressed when the engine is engaged and this as long as the clutch cable remains taut.
Le passage de la première position angulaire vers la seconde, c'est à dire le passage d'une position embrayée à une position débrayée est effectué en relâchant les efforts de tension exercés par la manette de commande sur le câble d'embrayage. Sous l'effet de la force de rappel élastique exercée par le moyen de rappel élastique, la platine pivote jusqu'à permettre le débrayage complet du moteur.The passage from the first angular position to the second, that is to say the passage from a engaged position to a disengaged position is carried out by releasing the tension forces exerted by the control lever on the clutch cable. Under the effect of the elastic return force exerted by the elastic return means, the plate pivots until allowing the complete disengaging of the motor.
Le moteur est préférentiellement alimenté par des batteries qui peuvent être placées dans le manche de commande 10 qui est un tube cylindrique ou directement fixées à la planche ou portées dans un sac à dos. Le moteur est commandé par un interrupteur et/ou un variateur de vitesse. L'interrupteur et/ou le variateur peuvent être positionnés sur la planche 2 pour être commandés au pieds ou sont préférentiellement positionnés sur le manche de commande 10, à proximité de la poignée.The motor is preferably powered by batteries which can be placed in the control handle 10 which is a cylindrical tube or directly fixed to the board or carried in a backpack. The motor is controlled by a switch and / or a speed variator. The switch and / or the variator can be positioned on the board 2 to be controlled by the feet or are preferably positioned on the control handle 10, near the handle.
L'interrupteur et/ou variateur est préférentiellement intégré dans la poignée, cette poignée pouvant être mobile par rapport au manche 10.The switch and / or variator is preferably integrated in the handle, this handle being able to be movable relative to the handle 10.
Dans ce cas, la poignée est par exemple montée à rotation sur le manche 10 qui est sensiblement vertical et/ou perpendiculaire à la planche 2. Selon une autre variante de l'invention, non représentée sur les figures, la roue fixe peut être remplacée par deux roues fixes parallèles entre elles et de même diamètre, montées sur un même axe de rotation.In this case, the handle is for example rotatably mounted on the handle 10 which is substantially vertical and / or perpendicular to the board 2. According to another variant of the invention, not shown in the figures, the fixed wheel can be replaced by two fixed wheels which are mutually parallel and of the same diameter, mounted on the same axis of rotation.
Dans ce cas, ces roues fixes sont soit juxtaposées l'une à l'autre, soit éloignées l'une de l'autre.In this case, these fixed wheels are either juxtaposed with one another, or distant from one another.
La figure 4 représente la seconde extrémité 2b du véhicule 1 lorsque ces deux roues dites guidées 6a et 6b sont éloignées l'une de l'autre et portées par un même axe de rotation 9. Cet axe est par exemple assemblé sur la seconde partie 2b du véhicule, généralement à l'avant de la planche 2, par une liaison pivot 11 sensiblement parallèle à l'axe longitudinal 25. Cette liaison pivot est préférentiellement alignée avec cet axe longitudinal 25 de façon à faciliter l'inclinaison latérale de la planche dans les virages.FIG. 4 shows the second end 2b of the vehicle 1 when these two so-called guided wheels 6a and 6b are distant from each other and carried by the same axis of rotation 9. This axis is for example assembled on the second part 2b of the vehicle, generally at the front of the board 2, by a pivot link 11 substantially parallel to the longitudinal axis 25. This pivot link is preferably aligned with this longitudinal axis 25 so as to facilitate the lateral inclination of the board in the turns.
Selon un autre mode de réalisation dans lequel les deux roues guidées 6a et 6b sont éloignées l'une de l'autre, celle-ci peuvent être montées sur un support articulé permettant par exemple d' incliner latéralement ces deux roues guidées par un mouvement d' inclinaison dans un plan vertical.According to another embodiment in which the two guided wheels 6a and 6b are distant from each other, the latter can be mounted on an articulated support making it possible for example to tilt these two guided wheels laterally by a movement of tilt in a vertical plane.
Ce support articulé étant adapté pour que les axes de rotation des roues guidées soient mobiles simultanément et uniquement dans un plan vertical, les roues restant toujours sensiblement parallèles entre elles. Ce mode de réalisation permet aux roues guidées d'être toujours orientées dans l'axe de la planche et toujours simultanément en contact avec le sol, la direction du véhicule étant uniquement donnée par les roues guidantes .This articulated support being adapted so that the axes of rotation of the guided wheels are mobile simultaneously and only in a vertical plane, the wheels always remaining substantially parallel to each other. This embodiment allows the guided wheels to be always oriented in the axis of the board and always simultaneously in contact with the ground, the direction of the vehicle being only given by the guide wheels.
Un ou plusieurs amortisseurs peuvent être apportés sur ce support articulé pour favoriser le contact simultané des roues guidées sur le sol.One or more shock absorbers can be added to this articulated support to promote simultaneous contact of the guided wheels on the ground.
La position normale d'utilisation du véhicule, consiste à positionner les roues guidantes ou roues directionnelles à l'arrière du véhicule par rapport à son sens d' avance avec la face supérieur de la planche orientée vers le haut et la (les) roue (s) dirigée (s) /fixe positionnée (s) dans le sens de déplacement du véhicule.The normal position for using the vehicle consists in positioning the guide wheels or directional wheels at the rear of the vehicle with respect to its direction of advance with the upper face of the board facing upwards and the wheel (s) ( s) steered / fixed positioned in the direction of movement of the vehicle.
Pour prendre un virage, l'utilisateur incline la planche 2 par rapport au sol 18, du côté vers où il souhaite tourner. L'utilisateur déplace son poids sur le côté de la planche vers lequel il souhaite tourner et crée un couple de rotation de la planche 2 autour de son axe longitudinal 25. Ces efforts créent un couple de pivotement de la planche autour d'un axe de pivotement longitudinal 26 sensiblement parallèle à l'axe principal de la planche 2.To take a turn, the user inclines the board 2 with respect to the ground 18, on the side towards which he wishes to turn. The user displaces his weight on the side of the board towards which he wishes to rotate and creates a torque of rotation of the board 2 around its longitudinal axis 25. These efforts create a pivoting torque of the board around an axis of longitudinal pivot 26 substantially parallel to the main axis of the board 2.
L'arrière de la planche 2 chasse alors du côté opposé au côté vers lequel l'utilisateur souhaite tourner. Dans le cas préférentiel où il n'y a qu'une seule roue guidée/fixe, sous l'effet combiné du mouvement d'avance de la planche 2, de l'arrière vers l'avant de la planche, et du mouvement de chasse latérale de l'arrière de la planche 2, l'ensemble du véhicule 1 pivote autour du point de contact 19 entre la roue fixe 6 avant de la planche 2 et le sol ou support 18 et l'avant de la planche 2 s'oriente vers le côté du virage souhaité. The back of the board 2 then hunts on the side opposite the side towards which the user wishes to turn. In the preferential case where there is only one guided / fixed wheel, under the combined effect of the advance movement of the board 2, from the rear towards the front of the board, and of the lateral flushing movement of the back of the board 2, the whole of the vehicle 1 pivots around the point of contact 19 between the fixed wheel 6 front of the board 2 and the ground or support 18 and the front of the board 2 is oriented towards the side of the desired turn.

Claims

REVENDICATIONS
1 Véhicule à roulettes (1) comprenant une planche (2) adaptée pour permettre le placement des pieds d'un utilisateur du véhicule sur une face supérieure (3) de la planche (2) en position normale d'utilisation et supportée par plusieurs roues guidantes (4, 5) placées à proximité d'une première extrémité longitudinale (2a) de la planche (2) et au moins une roue guidée (6) placée à proximité d'une seconde extrémité longitudinale (2b) de la planche (2), chaque roue (4, 5, 6) ayant un axe de rotation propre (7, 8, 9) autour duquel elle est montée à rotation, les axes de rotation (7, 8) des roues guidantes (4, 5) étant reliés à la planche (2) par un moyen support articulé (22) et étant mobiles ensemble par rapport à la planche (2) selon un mouvement d' orientation directionnel de chaque roue guidante (4, 5), et l'axe de rotation (9) de la (des) roue (s) guidée (s) (6) étant relié à la planche (2), la planche (2) comportant une première zone d'appui (3a) de pieds située sur la face supérieure (3) de la planche (2) à proximité de la première extrémité longitudinale (2a) de la planche (2) et une seconde zone d'appui (3b) de pieds située sur la face supérieure (3) de la planche (2), à proximité de la seconde extrémité longitudinale (2b) de la planche (2) et éloignée longitudinalement de la première extrémité (2a) de la planche (2), ces zones d'appuis étant situées entre la (les) roue (s) guidée (s) et les roues guidantes, caractérisé en ce que le véhicule étant posé par toutes ses roues sur un support plan (18), la distance entre la seconde zone d'appui (3b) et le support (18) est supérieure à la distance entre la première zone d'appui (3a) et ledit support (18) et en ce que la (les) roue (s) guidée (s) (6) possède (nt) un diamètre supérieur au diamètre des roues guidantes (4, 5) .1 wheeled vehicle (1) comprising a board (2) adapted to allow the placement of the feet of a vehicle user on an upper face (3) of the board (2) in the normal position of use and supported by several wheels guides (4, 5) placed near a first longitudinal end (2a) of the board (2) and at least one guided wheel (6) placed near a second longitudinal end (2b) of the board (2 ), each wheel (4, 5, 6) having its own axis of rotation (7, 8, 9) around which it is rotatably mounted, the axes of rotation (7, 8) of the guide wheels (4, 5) being connected to the board (2) by an articulated support means (22) and being movable together with respect to the board (2) in a directional orientation movement of each guide wheel (4, 5), and the axis of rotation (9) of the guided wheel (s) (6) being connected to the board (2), the board (2) comprising a first foot support area (3a) s located on the upper face (3) of the board (2) near the first longitudinal end (2a) of the board (2) and a second foot support area (3b) located on the upper face (3 ) of the board (2), near the second longitudinal end (2b) of the board (2) and longitudinally distant from the first end (2a) of the board (2), these support zones being located between the (the) guided wheel (s) and the guiding wheels, characterized in that the vehicle being placed by all of its wheels on a flat support (18), the distance between the second support area (3b) and the support (18) is greater than the distance between the first support area (3a) and said support (18 ) and in that the guided wheel (s) (6) has (s) a diameter greater than the diameter of the guide wheels (4, 5).
2 Véhicule à roulettes selon la revendication 1, caractérisé en ce que la distance entre la seconde zone d'appui (3b) et le support (18) est supérieure à la distance entre la première zone d'appui (3a) et ledit support (18) d'au moins 2% et préférentiellement d'au moins 4% à 20% de la distance séparant ces première et seconde zones d'appuis.2 wheeled vehicle according to claim 1, characterized in that the distance between the second support area (3b) and the support (18) is greater than the distance between the first support area (3a) and said support ( 18) at least 2% and preferably at least 4% to 20% of the distance separating these first and second support zones.
3 Véhicule à roulettes selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la planche est inclinée longitudinalement entre les roues guidantes et guidée (s) par rapport à ce support plan (18) et la distance minimale (Db) de la planche (2) au support (18), à l'endroit de sa (ses) roue (s) guidée (s) (6) est supérieure à la distance minimale (Da) de la planche au support (18) à l'endroit de ses roues guidantes (4, 5).3 wheeled vehicle according to any one of claims 1 or 2, characterized in that the board is inclined longitudinally between the guide wheels and guided (s) relative to this planar support (18) and the minimum distance (Db) of the board (2) to the support (18), at the location of its guided wheel (s) (6) is greater than the minimum distance (Da) from the board to the support (18) at l location of its guide wheels (4, 5).
4 Véhicule à roulettes selon la revendication 3 caractérisé en ce que l'inclinaison longitudinale de la planche (2) par rapport au support plan (18) est supérieure à 2% et préférentiellement supérieure à 4%. 5 Véhicule à roulettes selon l'une quelconque des revendications l à 4, caractérisé en ce que le moyen support articulé (22) comporte un moyen élastique (22a) adapté pour générer un couple élastique de rappel de la planche (2) dans une position de pivotement latéral de la planche (2) dans laquelle l'axe de rotation (9) propre de la (des) roue (s) guidée (s) (6) est sensiblement parallèle au support (18).4 wheeled vehicle according to claim 3 characterized in that the longitudinal inclination of the board (2) relative to the planar support (18) is greater than 2% and preferably greater than 4%. 5 wheeled vehicle according to any one of claims l to 4, characterized in that the articulated support means (22) comprises an elastic means (22a) adapted to generate an elastic torque for returning the board (2) to a position for lateral pivoting of the board (2) in which the own axis of rotation (9) of the guided wheel (s) (6) is substantially parallel to the support (18).
6 Véhicule à roulettes selon la revendication 5 caractérisé en ce que le moyen élastique (22a) est un moyen réglable de façon que le couple élastique généré par ce moyen élastique (22a) pour une position de pivotement latéral de la planche (2) donnée puisse être ajusté.6 wheeled vehicle according to claim 5 characterized in that the elastic means (22a) is an adjustable means so that the elastic torque generated by this elastic means (22a) for a given lateral pivoting position of the board (2) can be adjusted.
7 Véhicule à roulettes selon l'une des quelconque revendications 1 à 6, caractérisé en ce que la planche7 wheeled vehicle according to any one of claims 1 to 6, characterized in that the board
(2) possède une largeur maximale (L) qui est située à une plus grande proximité de la (des) roue (s) guidée (s)(2) has a maximum width (L) which is located closer to the guided wheel (s)
(6) que des roues guidantes (4, 5).(6) as guide wheels (4, 5).
8 Véhicule à roulettes selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il possède un manche de commande (10) fixé sur la face supérieure (3) de la planche (2) à une plus grande proximité de la (des) roue (s) guidée (s) (6) que des roues guidantes (4, 5) .8 wheeled vehicle according to any one of claims 1 to 7, characterized in that it has a control handle (10) fixed on the upper face (3) of the board (2) closer to the (of) guided wheel (s) (6) as guide wheels (4, 5).
9 Véhicule à roulettes selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la (les) roue (s) guidée (s) possède (nt) un diamètre supérieur de 20% à 60% par rapport au diamètre des roues guidantes (4, 5) .9 wheeled vehicle according to any one of claims 1 to 8, characterized in that the (the) guided wheel (s) has a diameter 20% to 60% greater than the diameter of the guide wheels (4, 5).
10 Véhicule à roulettes selon l'une quelconque des revendications 1 à 9, caractérisé en ce que l'axe de rotation (9) de la roue guidée (6) est relié fixement à la planche (2) . 10 wheeled vehicle according to any one of claims 1 to 9, characterized in that the axis of rotation (9) of the guided wheel (6) is fixedly connected to the board (2).
PCT/FR2004/002227 2003-09-01 2004-09-01 Roller vehicle WO2005023382A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR0310341A FR2859166B1 (en) 2003-09-01 2003-09-01 VEHICLE WITH CASTERS
FR0310341 2003-09-01
FR0311199 2003-09-24
FR0311199A FR2859111B1 (en) 2003-09-01 2003-09-24 VEHICLE WITH CASTERS

Publications (2)

Publication Number Publication Date
WO2005023382A2 true WO2005023382A2 (en) 2005-03-17
WO2005023382A3 WO2005023382A3 (en) 2005-07-14

Family

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Application Number Title Priority Date Filing Date
PCT/FR2004/002227 WO2005023382A2 (en) 2003-09-01 2004-09-01 Roller vehicle

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Country Link
FR (1) FR2859111B1 (en)
WO (1) WO2005023382A2 (en)

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US8336894B2 (en) 2007-03-05 2012-12-25 B.E.W. Squared, Llc Three-wheeled rear-steering scooter
US8152176B2 (en) 2009-06-25 2012-04-10 Sbyke Usa Llc Truck assembly
US8602422B2 (en) 2010-12-09 2013-12-10 Sbyke Usa Llc Three wheeled scooter with rear skate truck and fixed front wheel
US8448954B2 (en) 2010-12-09 2013-05-28 Sbyke Usa Llc Skate truck

Citations (1)

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Publication number Priority date Publication date Assignee Title
WO2000003773A1 (en) 1998-07-13 2000-01-27 Micro Mobility Systems Ag Skateboard

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Publication number Priority date Publication date Assignee Title
US5762351A (en) * 1995-06-26 1998-06-09 Soohoo; Wayne J. Multi-track vehicle with lock and drive lean control system
DE19542061A1 (en) * 1995-11-13 1997-05-15 Wolfgang Dipl Ing Eckhardt Steering grip for skateboard, etc.
DE10035296B4 (en) * 2000-07-18 2006-08-24 Bertiller, Marco Sports and transport equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000003773A1 (en) 1998-07-13 2000-01-27 Micro Mobility Systems Ag Skateboard

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WO2005023382A3 (en) 2005-07-14
FR2859111A1 (en) 2005-03-04

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