EP2237844B1 - Rolling member - Google Patents
Rolling member Download PDFInfo
- Publication number
- EP2237844B1 EP2237844B1 EP09705794A EP09705794A EP2237844B1 EP 2237844 B1 EP2237844 B1 EP 2237844B1 EP 09705794 A EP09705794 A EP 09705794A EP 09705794 A EP09705794 A EP 09705794A EP 2237844 B1 EP2237844 B1 EP 2237844B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling
- movement
- bead
- track
- member according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
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- 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
- A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
- A63C17/06—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
- A63C17/08—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type single-wheel type with single axis
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- 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
- A63C17/0066—Roller skates; Skate-boards with inclined wheel, i.e. not perpendicular to the surface it rolls on
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- 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
- A63C17/10—Roller skates; Skate-boards with endless tracks
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- 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
- A63C17/22—Wheels for roller skates
Definitions
- the present invention relates to a running gear, as well as sports equipment, leisure or individual displacement or a vehicle equipped with such a running gear.
- the invention of the tire and the successive improvements of the tires made it possible to optimize the lateral stiffness and the deformation capacity of this tire, thus increasing the ground contact surface as shown in FIG. Figure 1c .
- the longitudinal component opposes the movement, generating a waste of energy.
- the vertical component directly impacts the comfort of the mobile equipment, and it varies the contact pressure on the ground, which can go as far as canceling it, causing a partial or total loss of adhesion.
- the lateral component influences the path of movement, especially at a steering wheel.
- the displacement of the wheel induces an aerodynamic drag proportional to its wing surface and to the square of the speed of displacement.
- all-terrain vehicle wheels are oversized, so they are heavier and the mechanical strength of all components must be increased.
- a rolling member which does not have a circular shape such as a wheel, but a profile adapted to a specific application.
- the subject of the present invention is a running gear comprising a trajectory guide and a part that is movable with respect to the trajectory guide intended to form a tread traveling in a closed circuit, characterized in that the movable part comprises a continuous and flexible displacement rod, and the path guide is arranged to guide the moving part on a left trajectory with variable curvature.
- the running gear according to the invention behaves in part like a wheel, namely that the movable part, which we call displacement rod, unfolds without friction on the ground, driving, guiding and supporting the vehicle and / or the person who is equipped.
- the moving part unfolds in a closed path that is neither circular nor even included in a plane. Indeed, the shape, the dimensions, and the choice of the materials which constitute the coil of displacement confer to him characteristics of torsion and bending, which allow him to follow, by elastic deformation, a left closed curved trajectory with variable curvatures. it is imposed by the trajectory guide.
- the member comprises revolution rolling elements disposed between a rolling surface of the movable part and the path guide so as to facilitate the relative movement between the path guide and the moving part.
- the displacement rod is made of elastic material.
- the bead may have inside a core of softer material, or a foam, or a vacuum filled with a gas under pressure.
- the coil comprises several elements made of different materials reported to obtain different mechanical properties for the tread, the running surface and the core.
- the bead has inwardly facing impressions of the path intended to cooperate with means intended to constrain the movement in a single direction.
- the member comprises braking means cooperating with the displacement rod.
- the flange comprises at least two rolling surfaces between which is disposed a flexible core so as to provide the rigidity necessary for the transmission of the guide forces and holding the displacement rod.
- the trajectory guide comprises rolling tracks for guiding the rolling element movement
- the displacement rod comprises one or more rolling surfaces, the rolling elements thus being housed between the rolling surface of the rolling rod. displacement and running track.
- the rolling elements comprise a certain number of rollers whose axis of rotation is integral with the path guide, the displacement rod comprising one or more rolling surfaces on which the rolling elements bear.
- the trajectory guide is arranged so that the coil has several distinct contact zones with the displacement surface.
- the present invention also relates to an equipment or pad movement, sports, or leisure individual comprising a rolling member as previously described.
- the equipment is equipped with a foot plate, intended to receive the two feet of the skater, who uses it as a skateboard, a snowboard, or a surf.
- the present invention further relates to equipment for any use proper to allow or facilitate the movement of persons or goods comprising a running gear according to the invention or a land, air or sea vehicle comprising such a rolling member.
- the rolling member also comprises revolution rolling elements 5 disposed between the movable portion 1 and the path guide 2 so as to ensure a movement with limited friction between these two parts of the member.
- the displacement rod comprises on an outwardly facing portion of the path and intended to be in contact with the displacement surface a tread 10.
- This tread has a profile and sculptures that can be adapted according to the type of displacement surface chosen.
- the flange comprises a portion positioned towards the inside of the trajectory of the flange comprising rolling surfaces 11 on which the rolling elements 5 will roll, hard enough for the rolling force to be minimal.
- the bead may have inside a core 12 of softer material, or a foam, or a vacuum filled with a gas under pressure.
- the flange can also have indentations facing towards the inside of the trajectory allow to drive a gear wheel, which can be provided with a freewheel hub, to prohibit the reverse, especially in the climbs, possibly disengageable if necessary and may also optionally have the function of a brake disk.
- a surface 14, preferably turned towards the inside of the trajectory, may optionally be used as a braking drum.
- This surface 14 may also be used to constitute an anti-recoil system by wedging rollers against inclined surfaces, or by wedging eccentric surfaces, possibly still disengageable if necessary
- the shape of the displacement rod 1 is imposed by the guide path 2 through the rolling elements 5, allowing a displacement of the roll without friction.
- the trajectory guide Before it is mounted between, on, or around the trajectory guide, it may be a circular, tire-like, flexible ring, the developed one of which is defined by these trajectory guides. This allows it to have a radius of curvature at rest corresponding best to the average of the radii of curvature described during its displacement.
- It can also be at rest as a rectilinear element, possibly less expensive to manufacture, which will be closed and fixed on itself ring, before, during, or after its integration with the trajectory guide.
- the path guide 2 is machined and formed according to the desired displacement path of the displacement rod.
- the trajectory guide 2 comprises rolling tracks 2a for guiding the movement of the rolling element, in particular of the ball bearing type 5a.
- Each rolling element 5a is thus housed between the rolling surface 11 of the displacement rod and the rolling track 2a.
- the trajectory guide may also comprise means for fixing rolling elements constituted by at least one roller 5b.
- the pivot of the roller is secured to the path guide, and the roller rolls on the rolling surface 11 of the displacement rod.
- the bearing areas of the rolling elements on the displacement rod are arranged to guide the movement thereof and to avoid lateral movements.
- the trajectory guide 2 and the rolling elements 5 provide the lateral guidance, the different inflections of the trajectory of the flange, the radial guide for rolling on the displacement surface, and a restraint to prevent the flange from escaping ( "off"), or its voltage.
- the materials chosen for the displacement rod allow it the elasticity necessary to follow the left ovoid displacement path represented on the Figures 2 and 3 in an elastic way, it restores by releasing all or part of the energy consumed to deform.
- the hoof may consist of a shoe that the skater laces or locks around his foot like an ice skate according to a first variant, or may include fastenings allowing to practice with special shoes, such as cross-country ski boots, or mountain shoes for example, according to a second variant shown on the Figures 2 and 3 .
- the shoe is fixed on a frame 3 on which is fixed a rolling member as described above.
- the skate according to the invention proposes a simple solution, technically reliable, financially balanced, which brings more stability, more comfort, and a better versatility of use.
- the running gear according to the invention makes it possible to develop different ranges of rollers, more comfortable, more stable, safer, and more versatile.
- the shape of the running tracks depends on the shape of the rolling elements, and the constraints to assume.
- the number of running lanes depends on the criteria for using the equipment.
- the displacement rod constitutes an elastic ring comprising, as in the previously described embodiments, a tread 10, rolling surfaces 11.
- a flexible core 20 is included in the displacement rod 1, between the rolling surfaces 11 situated on either side of the bead so as to provide the rigidity necessary for the transmission of the guiding and holding forces of the displacement rod. .
- the flanks 22 of the flange reconcile a good lateral resistance, and a good damping capacity.
- the core 12 of the bead is made of softer material, or a foam, or a vacuum filled with a gas under pressure.
- the boudin can also incorporate an inner tube.
- the flange can provide other ancillary functions: Fingerprints on the underside may allow the mechanical training of ancillary elements: braking, freewheel, engine, or other.
- the trajectory guide 2 is connected to a vehicle by a connecting element 17 which houses the trajectory guide 2.
- the connecting element may have a U-shaped profile forming a housing for the trajectory guide 2.
- a damping element 18 is advantageously disposed between the trajectory guide and the bottom of the housing.
- the path guide 2 is made in one piece or in parts 2c, 2d and 2e, machined or shaped according to the desired travel path to meet the use.
- Only one guide can support all running surfaces, but these can also be spread over several guide parts. Their number is not limited, it depends on the use.
- Each guide portion has one or more integrated or reported rolling surfaces on which the rolling elements 5 will roll. These surfaces may belong to inserts, glued, recessed, overmoulded, or other, or be provided in the guide. The harder they will be, the lower the rolling effort will be.
- the path guide provides, through the rolling elements, the lateral, axial and radial guide of the rolling flange, and the transmission of forces.
- a recycling circuit of the rolling elements will be incorporated.
- the single guide, or all of the guide portions, constitutes the annular hub of the flexible wheel.
- the hub may comprise complementary elements, in particular for the attachment and maintenance of the trajectory guide part or parts 2, and for connection to the vehicle. It can comprise several zones, rigid, or more or less flexible, depending on the constraints supported by the portion of trajectory considered, and the functions to be fulfilled: zone of transmission of the forces on the ground, zone of connection with the vehicle, zone of connection to the suspension, deformation zone, etc.
- the guide parts can be integrated in an ad hoc imprint of the vehicle, rigidly or elastically or guided by supports connected or articulated on the vehicle, rigidly, or elastic. These guide parts may be otherwise constrained or completely free.
- the trajectory guide 2 forms an annular hub that can be flexible.
- the trajectory guide 2 is arranged so that the flange has several distinct contact zones with a displacement surface constituted for example by the ground.
- the running gear according to the invention can be applied to leisure, travel or individual transport equipment: skateboard, wheelchair, stroller, wheelbarrow, luggage, etc ... or equip many types of equipment mobiles and vehicles.
- suspension elements e.g., suspension elements, a braking system, an anti-recoil system, disengageable if possible, a motor, and other features or accessories.
Landscapes
- Motorcycle And Bicycle Frame (AREA)
- Tires In General (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Ropes Or Cables (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Metal Rolling (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Friction Gearing (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
Abstract
Description
La présente invention concerne un organe de roulement, ainsi qu'un équipement de sport, de loisir ou de déplacement individuel ou un véhicule équipé d'un tel organe de roulement.The present invention relates to a running gear, as well as sports equipment, leisure or individual displacement or a vehicle equipped with such a running gear.
L'organe de roulement le plus communément utilisé est la roue. En théorie, le contact d'une roue avec le sol est une ligne de tangence, dont la longueur correspond à la largeur de la bande de roulement. C'est le cas des roues de wagons sur les rails comme le montre la
La découverte du caoutchouc a permis l'apport du bandage souple, permettant d'augmenter la surface de contact par écrasement de ce bandage au contact du sol comme le montre la
Puis l'invention du pneumatique et les améliorations successives des pneus a permis d'optimiser la rigidité latérale et la capacité de déformation de ce bandage, augmentant ainsi la surface de contact au sol comme le montre la
Pour augmenter la surface de contact entre une roue et le sol, il est possible soit d'élargir la bande de roulement, soit d'augmenter le diamètre de la roue, soit d'augmenter la capacité du pneu à se déformer, notamment en utilisant des matériaux plus souples et/ou pression d'air plus faible.To increase the contact surface between a wheel and the ground, it is possible either to widen the tread, to increase the diameter of the wheel, or to increase the capacity of the tire to deform, in particular by using softer materials and / or lower air pressure.
Lors du déplacement, les irrégularités du sol, les trous, les bosses, ou tout obstacle rencontré par la roue génère un impact, donc des efforts qui sont transmis au train roulant et à l'équipement mobile.During the displacement, the irregularities of the ground, the holes, the bumps, or any obstacle encountered by the wheel generates an impact, therefore of the forces which are transmitted to the undercarriage and to the mobile equipment.
Ces efforts peuvent être décomposés selon les trois axes:
- Vertical correspondant à la gravité,
- Longitudinal correspondant au sens de déplacement
- Latéral correspondant aux composantes latérales et centripètes.
- Vertical corresponding to gravity,
- Longitudinal corresponding to the direction of movement
- Lateral corresponding to the lateral and centripetal components.
Ces composantes sont directement proportionnelles au poids, et au carré de la vitesse de l'équipement mobile.These components are directly proportional to the weight and square of the speed of the mobile equipment.
Elles sont directement liées à la granularité du support, à la taille des irrégularités et obstacles, à l'angle d'incidence de l'impact avec la roue, et à la capacité d'amortissement du pneu et du train roulant,They are directly related to the granularity of the support, the size of the irregularities and obstacles, the angle of incidence of the impact with the wheel, and the damping capacity of the tire and undercarriage,
Elles induisent des forces de réaction qui dépendent également de l'inertie des éléments mobiles du même train roulant.They induce reaction forces which also depend on the inertia of the moving elements of the same running gear.
La composante longitudinale s'oppose au mouvement, générant un gaspillage d'énergie.The longitudinal component opposes the movement, generating a waste of energy.
La composante verticale impacte directement le confort de l'équipement mobile, et elle fait varier la pression de contact au sol, pouvant aller jusqu'à l'annuler, provoquant une perte d'adhérence partielle ou totale.The vertical component directly impacts the comfort of the mobile equipment, and it varies the contact pressure on the ground, which can go as far as canceling it, causing a partial or total loss of adhesion.
La composante latérale influe sur la trajectoire de déplacement, notamment au niveau d'une roue directrice.The lateral component influences the path of movement, especially at a steering wheel.
Pour réduire ces efforts parasites, il est possible de réduire l'angle d'incidence avec les irrégularités, en augmentant le diamètre de la roue, d'augmenter la capacité du pneu à se déformer, notamment en utilisant des matériaux plus souples et/ou pression d'air plus faible, de développer des structures et des profils de pneus qui limitent les composantes latérales, ou encore de réduire la masse de la roue, et des éléments mobiles du train roulant.To reduce these parasitic forces, it is possible to reduce the angle of incidence with the irregularities, by increasing the diameter of the wheel, to increase the capacity of the tire to deform, in particular by using more flexible materials and / or lower air pressure, to develop structures and tire profiles that limit the lateral components, or to reduce the mass of the wheel, and moving parts of the running gear.
Par ailleurs, le déplacement de la roue sur le sol induit des forces de frottement qui sont proportionnelles à la surface de contact, et aux contraintes de déformation de la bande de roulement.Furthermore, the displacement of the wheel on the ground induces friction forces which are proportional to the contact surface, and to the deformation stresses of the tread.
Le déplacement de la roue induit une trainée aérodynamique proportionnelle à sa surface alaire et au carré de la vitesse de déplacement.The displacement of the wheel induces an aerodynamic drag proportional to its wing surface and to the square of the speed of displacement.
La rotation de la roue lui confère une énergie inertielle directement proportionnelle à son moment d'inertie, et au carré de sa vitesse de rotation, exprimée en radians par seconde.The rotation of the wheel gives it an inertial energy directly proportional to its moment of inertia, and to the square of its speed of rotation, expressed in radians per second.
Le déplacement de l'équipement mobile lui confère une énergie cinétique directement proportionnelle à sa masse et au carré de sa vitesse. Cette énergie cinétique est la somme des énergies cinétiques de chacun des composants de l'équipementMoving the mobile equipment gives it kinetic energy directly proportional to its mass and the square of its speed. This kinetic energy is the sum of the kinetic energies of each of the components of the equipment
La seule intégration des paramètres de base non-exhaustifs énoncés ci-dessus implique des compromis, et chaque contexte d'utilisation implique des compromis différents.The mere integration of the non-exhaustive basic parameters stated above involves compromises, and each context of use involves different compromises.
Par exemple, pour réduire la pression de contact au sol, augmenter l'adhérence, réduire l'impact des irrégularités du terrain et améliorer les capacités de franchissement des obstacles, les roues de véhicule tout-terrains sont surdimensionnées, elles sont donc plus lourdes et la résistance mécanique de tous les composants doit être augmentée.For example, to reduce ground contact pressure, increase grip, reduce the impact of terrain irregularities and improve obstacle clearance capabilities, all-terrain vehicle wheels are oversized, so they are heavier and the mechanical strength of all components must be increased.
Cette augmentation de taille se traduit non seulement par un encombrement, des frottements, et une trainée aérodynamique accrue, mais aussi par une masse, une inertie, et une énergie cinétique potentielle accrue.This increase in size results not only in congestion, friction, and increased aerodynamic drag, but also in mass, inertia, and increased potential kinetic energy.
Cela implique donc des véhicules plus lourds, plus coûteux, et plus gourmands en énergie, pour des performances et un confort moins favorables.This implies heavier, more expensive, and more energy-hungry vehicles for less favorable performance and comfort.
Dans certains cas, il est souhaitable de disposer d'organe de roulement ne présentant pas une forme circulaire comme une roue, mais un profil adapté à une application spécifique.In some cases, it is desirable to have a rolling member which does not have a circular shape such as a wheel, but a profile adapted to a specific application.
En particulier, il est connu du document
Il apparaît souhaitable de fournir un organe de roulement du type précité permettant de poursuivre tout ou partie des objectifs suivants :
- Améliorer le comportement et le confort sur tout type de revêtement,
- permettre une utilisation sur une grande variété de terrains,
- permettre une position basse et stable de l'objet ou de la personne supportée par l'organe de roulement,
- Conserver un poids, un encombrement et un coût comparable aux produits existants.
- Improve behavior and comfort on any type of coating,
- allow use on a wide variety of terrains,
- allow a low and stable position of the object or person supported by the running gear,
- Keep weight, bulk and cost comparable to existing products.
A cet effet, la présente invention a pour objet un organe de roulement comportant un guide de trajectoire et une partie mobile par rapport au guide de trajectoire destinée à former une bande de roulement se déplaçant en circuit fermé, caractérisé en ce que la partie mobile comprend un boudin de déplacement souple et continu, et le guide de trajectoire est agencé pour guider la partie mobile sur une trajectoire gauche à courbure variable.For this purpose, the subject of the present invention is a running gear comprising a trajectory guide and a part that is movable with respect to the trajectory guide intended to form a tread traveling in a closed circuit, characterized in that the movable part comprises a continuous and flexible displacement rod, and the path guide is arranged to guide the moving part on a left trajectory with variable curvature.
L'organe de roulement selon l'invention se comporte en partie comme une roue, à savoir que la partie mobile, que nous appelons boudin de déplacement, se déroule sans frottement sur le sol, en entrainant , guidant et supportant le véhicule et/ou la personne qui en est équipée.The running gear according to the invention behaves in part like a wheel, namely that the movable part, which we call displacement rod, unfolds without friction on the ground, driving, guiding and supporting the vehicle and / or the person who is equipped.
La partie mobile se déroule en suivant une trajectoire fermée qui n'est ni circulaire, ni même comprise dans un plan. En effet, la forme, les dimensions, et le choix des matériaux qui constituent le boudin de déplacement lui confèrent des caractéristiques de torsion et de flexion, qui lui permettent de suivre, par déformation élastique, une trajectoire courbe fermée gauche à courbures variables.qui lui est imposée par le guide de trajectoire.The moving part unfolds in a closed path that is neither circular nor even included in a plane. Indeed, the shape, the dimensions, and the choice of the materials which constitute the coil of displacement confer to him characteristics of torsion and bending, which allow him to follow, by elastic deformation, a left closed curved trajectory with variable curvatures. it is imposed by the trajectory guide.
Il est conçu pour que les déformations qui lui sont ainsi imposées restent dans le cadre de ses limites élastiques, afin que son déplacement absorbe le minimum d'énergie.It is designed so that the deformations which are thus imposed to him remain within the limits of its elastic limits, so that its displacement absorbs the minimum of energy.
Ces dispositions permettent d'avoir une zone de contact avec le sol augmentée. Elles permettent également :
- de donner à la zone d'attaque de la roue une grande variété de trajectoires, en fonction des conditions d'utilisation.
- de donner à la partie inactive de la roue une trajectoire qui s'intègre aux impératifs dimensionnels du véhicule équipé.
- d'amortir les irrégularités du support par déformation élastique d'une partie ou de la totalité de la roue.
- to give the wheel drive zone a wide variety of trajectories, depending on the conditions of use.
- to give the inactive part of the wheel a trajectory that integrates with the dimensional requirements of the equipped vehicle.
- to damp the irregularities of the support by elastic deformation of a part or the whole of the wheel.
Avantageusement, l'organe comprend des éléments de roulement de révolution disposés entre une surface de roulement de la partie mobile et le guide de trajectoire de façon à faciliter le mouvement relatif entre le guide de trajectoire et la partie mobile.Advantageously, the member comprises revolution rolling elements disposed between a rolling surface of the movable part and the path guide so as to facilitate the relative movement between the path guide and the moving part.
Selon un mode de réalisation, le boudin de déplacement est réalisé en matériau élastique.According to one embodiment, the displacement rod is made of elastic material.
Avantageusement, le boudin peut présenter à l'intérieur un coeur en matériau plus tendre, voire une mousse, ou un vide rempli d'un gaz sous pression.Advantageously, the bead may have inside a core of softer material, or a foam, or a vacuum filled with a gas under pressure.
Selon un mode de réalisation, le boudin comprend plusieurs éléments constitués de différents matériaux rapportés afin d'obtenir des propriétés mécaniques différentes pour la bande de roulement, la surface de roulement et le coeur.According to one embodiment, the coil comprises several elements made of different materials reported to obtain different mechanical properties for the tread, the running surface and the core.
Avantageusement, le boudin présente des empreintes tournées vers l'intérieur de la trajectoire destinés à coopérer avec des moyens destiné à contraindre le mouvement dans une seule direction.Advantageously, the bead has inwardly facing impressions of the path intended to cooperate with means intended to constrain the movement in a single direction.
Selon un mode de réalisation, l'organe comprend des moyens de freinage coopérant avec le boudin de déplacement.According to one embodiment, the member comprises braking means cooperating with the displacement rod.
Avantageusement, le boudin comprend au moins deux surfaces de roulement entre lesquelles est disposée une âme flexible de façon à assurer la rigidité nécessaire à la transmission des efforts de guidage et de tenue du boudin de déplacement.Advantageously, the flange comprises at least two rolling surfaces between which is disposed a flexible core so as to provide the rigidity necessary for the transmission of the guide forces and holding the displacement rod.
Selon une possibilité, le guide de trajectoire comporte des pistes de roulement permettant de guider le mouvement d'élément de roulement, le boudin de déplacement comprend une ou plusieurs surfaces de roulement, les éléments de roulement étant ainsi logés entre la surface de roulement du boudin de déplacement et la piste de roulement.According to one possibility, the trajectory guide comprises rolling tracks for guiding the rolling element movement, the displacement rod comprises one or more rolling surfaces, the rolling elements thus being housed between the rolling surface of the rolling rod. displacement and running track.
Selon une autre possibilité, les éléments de roulement comprennent un certain nombre de galets dont l'axe de rotation est solidaire du guide de trajectoire, le boudin de déplacement comprenant une ou plusieurs surfaces de roulement sur laquelle prennent appui les éléments de roulement.According to another possibility, the rolling elements comprise a certain number of rollers whose axis of rotation is integral with the path guide, the displacement rod comprising one or more rolling surfaces on which the rolling elements bear.
Avantageusement, le guide de trajectoire est agencé de façon à ce que le boudin présente plusieurs zones de contact distinctes avec la surface de déplacement.Advantageously, the trajectory guide is arranged so that the coil has several distinct contact zones with the displacement surface.
La présente invention a également pour objet un équipement ou patin de déplacement, de sport, ou de loisir individuel comprenant un organe de roulement tel que précédemment décrit.The present invention also relates to an equipment or pad movement, sports, or leisure individual comprising a rolling member as previously described.
Avantageusement, l'équipement est équipé d'un plateau repose-pieds, destiné à recevoir les deux pieds du patineur, qui l'utilise comme un skate-board, un snowboard, ou un surf.Advantageously, the equipment is equipped with a foot plate, intended to receive the two feet of the skater, who uses it as a skateboard, a snowboard, or a surf.
La présente invention a encore pour objet un équipement pour tout usage propre à permettre ou faciliter le déplacement de personnes ou de biens comprenant un organe de roulement selon l'invention ou un véhicule terrestre, aérien ou maritime comprenant tel un organe de roulement.The present invention further relates to equipment for any use proper to allow or facilitate the movement of persons or goods comprising a running gear according to the invention or a land, air or sea vehicle comprising such a rolling member.
L'invention sera mieux comprise à l'aide de la description détaillée qui est exposée ci-dessous en regard du dessin annexé dans lequel :
- La
figure 1a est un schéma illustrant les zones de contact entre une roue et un sol plat. - La
figure 1b est un schéma illustrant les zones de contact entre une roue muni d'un bandage et un sol plat. - La
figure 1c est un schéma illustrant les zones de contact entre une roue muni d'un pneumatique et un sol plat. - La
figure 2 est une vue de côté de l'intérieur de la jambe droite du patineur d'un patin de déplacement comprenant un premier mode de réalisation d'un organe de roulement selon l'invention. - La
figure 3 est une vue arrière du patin de déplacement defigure 2 . - Les
figures 4a, 4b, 5 et6 montrent la vue en coupe d'un organe de roulement selon différents modes de réalisation. - La
figure 7 est une vue schématique illustrant le profil d'une partie mobile d'un organe de roulement selon l'invention selon une variante de l'invention.
- The
figure 1a is a diagram illustrating the areas of contact between a wheel and a flat ground. - The
figure 1b is a diagram illustrating the areas of contact between a wheel with a bandage and a flat ground. - The
figure 1c is a diagram illustrating the contact areas between a tire wheel and a flat ground. - The
figure 2 is a side view of the inside of the skater's right leg of a displacement pad comprising a first embodiment of a running gear according to the invention. - The
figure 3 is a back view of the moving pad offigure 2 . - The
Figures 4a, 4b, 5 and6 show the sectional view of a rolling member according to different embodiments. - The
figure 7 is a schematic view illustrating the profile of a movable part of a rolling member according to the invention according to a variant of the invention.
Ainsi que représenté sur les figures, un organe de roulement selon l'invention comporte:
- une partie mobile 1 comprenant un boudin de déplacement souple formant une courbe fermée qui se déroule sur une surface de déplacement, par exemple un sol comme un pneu ou une chenille,
- un guide de trajectoire 2 de la partie mobile destiné à guider celle-ci sur une trajectoire gauche à courbure variable.
- a moving
part 1 comprising a flexible displacement bead forming a closed curve which takes place on a moving surface, for example a ground such as a tire or a crawler, - a guide of
trajectory 2 of the movable part intended to guide it on a left trajectory with variable curvature.
L'organe de roulement comprend également des éléments de roulement de révolution 5 disposés entre la partie mobile 1 et le guide de trajectoire 2 de façon à assurer un mouvement avec des frottements limité entre ces deux parties de l'organe.The rolling member also comprises
Selon un premier mode de réalisation représenté sur la
Cette bande de roulement présente un profil et des sculptures pouvant être adaptés selon le type de surface de déplacement choisie.This tread has a profile and sculptures that can be adapted according to the type of displacement surface chosen.
Le boudin comprend une partie positionnée vers l'intérieur de la trajectoire du boudin comprenant des surfaces de roulement 11 sur lesquelles vont rouler les éléments de roulement 5, suffisamment dures pour que l'effort de roulement soit minime.The flange comprises a portion positioned towards the inside of the trajectory of the flange comprising rolling surfaces 11 on which the rolling
Le boudin peut présenter à l'intérieur un coeur 12 en matériau plus tendre, voire une mousse, ou un vide rempli d'un gaz sous pression.The bead may have inside a
Ces dispositions permettent de réaliser une liaison entre la bande de roulement 10 et les surfaces de roulement 11, qui concilie une faible déformation latérale du boudin, et une bonne capacité d'amortissement.These arrangements allow a connection between the
Il est possible de prévoir un boudin constitué par plusieurs éléments constitués de différents matériaux associés afin d'obtenir les propriétés souhaitées pour la bande de roulement, les surfaces de roulement 11 le coeur 12, le corps du boudin, toute autre entité fonctionnelle, et leur liaison.It is possible to provide a flange consisting of several elements made of different associated materials to obtain the desired properties for the tread, the rolling surfaces 11 the
Le boudin peut également présenter des empreintes 13 tournée vers l'intérieur de la trajectoire permettent d'entraîner une roue dentée, pouvant être munie d'un moyeu à roue libre, pour interdire la marche arrière, notamment dans les montées, éventuellement débrayable au besoin et pouvant également avoir, de façon optionnelle la fonction de disque de frein.The flange can also have indentations facing towards the inside of the trajectory allow to drive a gear wheel, which can be provided with a freewheel hub, to prohibit the reverse, especially in the climbs, possibly disengageable if necessary and may also optionally have the function of a brake disk.
Une surface 14, tournée préférentiellement vers l'intérieur de la trajectoire, peut être utilisée optionnellement comme tambour de freinage.A
Cette surface 14, peut aussi être utilisée pour constituer un système anti recul par coincement de rouleaux face à des surfaces inclinées, ou par coincement de surfaces excentriques, éventuellement encore débrayable au besoinThis
La forme du boudin de déplacement 1 lui est imposée par le guide de trajectoire 2 par l'intermédiaire des éléments de roulements 5, permettant un déplacement du boudin de roulement sans frottement.The shape of the
Avant son montage entre, sur, ou autour du guide de trajectoire, il peut se présenter comme un anneau flexible circulaire, ressemblant à un pneu, dont le développé correspond à celui qui est défini par ces guides de trajectoire. Cela lui permet de présenter un rayon de courbure au repos correspondant au mieux à la moyenne des rayons de courbure décrits pendant son déplacement.Before it is mounted between, on, or around the trajectory guide, it may be a circular, tire-like, flexible ring, the developed one of which is defined by these trajectory guides. This allows it to have a radius of curvature at rest corresponding best to the average of the radii of curvature described during its displacement.
Il peut également se présenter au repos comme un élément rectiligne, éventuellement moins coûteux à fabriquer, qui sera refermé et fixé sur lui même en anneau, avant, lors de, ou après son intégration avec le guide de trajectoire.It can also be at rest as a rectilinear element, possibly less expensive to manufacture, which will be closed and fixed on itself ring, before, during, or after its integration with the trajectory guide.
Le guide de trajectoire 2 est usiné et formé selon le parcours de déplacement souhaité du boudin de déplacement.The path guide 2 is machined and formed according to the desired displacement path of the displacement rod.
Selon une première possibilité représentée sur la
Chaque élément de roulement 5a est ainsi logé entre la surface de roulement 11 du boudin de déplacement et la piste de roulement 2a.Each rolling
Selon une autre possibilité représentée sur la
Les zones d'appui des éléments de roulement sur le boudin de déplacement sont disposées de façon à guider le mouvement de celui-ci et éviter les mouvements latéraux.The bearing areas of the rolling elements on the displacement rod are arranged to guide the movement thereof and to avoid lateral movements.
Ainsi, il est possible de prévoir deux surfaces de roulement 11 inclinées de part et d'autre du boudin comme montré sur la
Il est également possible de prévoir une surface de roulement 11 unique de forme convexe ou concave permettant d'assurer le guidage par complémentarité de forme avec les éléments de roulement 5a.It is also possible to provide a
Le guide de trajectoire 2 et les éléments de roulement 5 assurent le guidage latéral, les différentes inflexions de la trajectoire du boudin, le guidage radial permettant le roulement sur la surface de déplacement, et une retenue pour éviter que le boudin ne s'échappe ("déjantage"), ou sa tension.The
Les matériaux choisis pour le boudin de déplacement lui permettent l'élasticité nécessaire pour suivre le parcours de déplacement ovoïde gauche représenté sur les
Cet organe de roulement est particulièrement adapté au patin à roulette:
- Un patin équipé d'un organe de roulement selon l'invention comprend
un sabot 4 destinée à tenir le pied ou la chaussure du patineur.
- A pad equipped with a running gear according to the invention comprises a
shoe 4 intended to hold the skater's foot or shoe.
Le sabot peut être constitué d'une chaussure que le patineur lace ou verrouille autour de son pied comme un patin à glace selon une première variante, ou peut comporter des fixations permettant de pratiquer avec des chaussures spéciales, comme des chaussures de ski de fond, ou des chaussures de montagne par exemple, selon une seconde variante représentée sur les
La stabilité naturelle de l'équipement permet de proposer des systèmes de fixation simples, rapides et efficaces, compatibles avec la majorité des chaussures de ville et de sport, comme c'était le cas des anciennes générations de patins à roulettes.The natural stability of the equipment makes it possible to offer simple, fast and efficient fastening systems that are compatible with the majority of city and sport shoes, as was the case with older generations of roller skates.
Le sabot est fixé sur un châssis 3 sur lequel est fixé un organe de roulement tel que décrit précédemment.The shoe is fixed on a
La trajectoire du boudin de déplacement 1 peut comprendre 6 zones distinctes principales:
- 1) la zone de contact A avec le sol est rectiligne ou présente un grand rayon de courbure sous le pied du patineur, dans le plan vertical, et sur une longueur plus ou moins importante pour favoriser la stabilité, la maniabilité, ou la vitesse ;
- 2) la zone d'attaque B devant le pied se relève avec profil adapté, afin de monter sur les obstacles et irrégularités rencontrées sur sa trajectoire ;
- 3) la zone de dégagement C au dessus de l'avant du pied s'incurve vers l'extérieur du corps du patineur, afin de revenir vers l'arrière du patin en évitant le mollet du patineur ;
- 4) La zone latérale D peut laisser la liberté de trajectoire au boudin afin qu'il puisse compenser les variations de développé dues à la dilatation, à l'usure, ou au vieillissement du matériau ;
- 5) la zone de retour E derrière le pied du patineur lui impose une trajectoire à peu près symétrique de la
zone 3 ; - 6) la zone d'appui arrière F, permettant de rejoindre la courbure de la zone A, et optimisé pour limiter les risques de chute arrière, et permettre l'intégration éventuelle d'un système de freinage.
- 1) the contact zone A with the ground is rectilinear or has a large radius of curvature under the skater's foot, in the vertical plane, and over a greater or lesser length to promote stability, maneuverability, or speed;
- 2) the attack zone B in front of the foot is raised with a suitable profile, in order to climb on the obstacles and irregularities encountered on its trajectory;
- 3) the clearance zone C above the front of the foot curves outwardly of the body of the skater, so as to return towards the rear of the skate avoiding the calf of the skater;
- 4) The lateral zone D can leave the trajectory freedom to the flange so that it can compensate for variations in development due to expansion, wear, or aging of the material;
- 5) the return zone E behind the skater's foot imposes a trajectory roughly symmetrical to the
zone 3; - 6) the rear support zone F, to join the curvature of the zone A, and optimized to limit the risk of falling back, and allow the possible integration of a braking system.
Le patin selon l'invention propose une solution simple, techniquement fiable, financièrement équilibrée, qui amène plus de stabilité, plus de confort, et une meilleure polyvalence d'utilisation.The skate according to the invention proposes a simple solution, technically reliable, financially balanced, which brings more stability, more comfort, and a better versatility of use.
Il se déplace sur un seul organe roulant qui passe sous, et approximativement dans l'axe du pied, dont la courbure au contact du sol peut avoir le profil optimum, et qui prend un espace minimum sous le pied du patineur.It moves on a single rolling member which passes under and approximately in the axis of the foot, whose curvature in contact with the ground can have the optimum profile, and which takes a minimum space under the skater's foot.
L'organe de roulement selon l'invention permet de développer des gammes de rollers différents, plus confortables, plus stables, plus sûrs, et plus polyvalents.The running gear according to the invention makes it possible to develop different ranges of rollers, more comfortable, more stable, safer, and more versatile.
Selon un troisième mode de réalisation représenté sur la
- Les éléments de roulement 5, peuvent être des billes et des rouleaux, et peuvent être maintenus par une cage comparable à celle qui équipe les roulements à bille, et possédant la flexibilité nécessaire. Les rouleaux peuvent être cylindriques, ou avoir toute autre forme de révolution.
- The rolling
elements 5 can be balls and rollers, and can be maintained by a cage comparable to that which equips the ball bearings, and having the necessary flexibility. The rollers may be cylindrical, or have any other form of revolution.
La forme des pistes de roulement dépend de la forme des éléments de roulement, et des contraintes à assumer.The shape of the running tracks depends on the shape of the rolling elements, and the constraints to assume.
Le nombre des pistes de roulement dépend des critères d'utilisation de l'équipement.The number of running lanes depends on the criteria for using the equipment.
Le boudin de déplacement constitue un anneau élastique comprenant comme dans les modes de réalisation précédemment décrits une bande de roulement 10, des surfaces de roulement 11.The displacement rod constitutes an elastic ring comprising, as in the previously described embodiments, a
Avantageusement, une âme flexible 20 est incluse dans boudin de déplacement 1, entre les surfaces de roulement 11 situées de part et d'autre du boudin de façon à assurer la rigidité nécessaire à la transmission des efforts de guidage et de tenue du boudin de déplacement.Advantageously, a
Les flancs 22 du boudin concilient une bonne tenue latérale, et une bonne capacité d'amortissement. Comme précédemment, le coeur 12 du boudin est réalisé en matériau plus tendre, voire une mousse, ou un vide rempli d'un gaz sous pression. Le boudin peut également intégrer une chambre à air.The
Comme précédemment, le boudin peut assurer d'autres fonctions annexes: Des empreintes sur l'intrados peuvent permettre l'entrainement mécanique d'éléments annexes: freinage, roue libre, motorisation, ou autre.As before, the flange can provide other ancillary functions: Fingerprints on the underside may allow the mechanical training of ancillary elements: braking, freewheel, engine, or other.
La surface intrados peut aussi être utilisée comme tambour de freinage. Il est également possible d'insérer :
- des éléments magnétiques permettant de générer de l'électricité, ou même de constituer un moteur linéaire.
- des éléments permettant de mesurer déplacements, vitesse, pression, et toute autre information utile.
- magnetic elements for generating electricity, or even to constitute a linear motor.
- elements to measure displacements, speed, pressure, and any other useful information.
Le guide de trajectoire 2 est relié à un véhicule par un élément de liaison 17 qui loge le guide de trajectoire 2.The
L'élément de liaison peut présenter un profil en U formant un logement pour le guide de trajectoire 2. Un élément amortisseur 18 est avantageusement disposé entre le guide de trajectoire et le fond du logement.The connecting element may have a U-shaped profile forming a housing for the
Le guide de trajectoire 2 est réalisé monobloc ou en plusieurs parties 2c, 2d et 2e, usiné ou mis en forme selon le parcours de déplacement souhaité pour répondre à l'utilisation.The path guide 2 is made in one piece or in
Un seul guide peut supporter toutes les surfaces de roulement, mais celles-ci peuvent aussi être réparties sur plusieurs parties de guide. Leur nombre n'est pas limité, il dépend de l'utilisation.Only one guide can support all running surfaces, but these can also be spread over several guide parts. Their number is not limited, it depends on the use.
Chaque partie de guide comporte une ou plusieurs surfaces de roulement intégrées ou rapportées sur lesquelles vont rouler les éléments de roulement 5. Ces surfaces peuvent appartenir à des éléments rapportés, collés, encastrés, surmoulés, ou autres, ou être ménagées dans le guide. Plus elles seront dures, et plus l'effort de roulement sera faible.Each guide portion has one or more integrated or reported rolling surfaces on which the rolling
Le guide de trajectoire assure, par l'intermédiaire des éléments de roulement, le guidage latéral, axial et radial du boudin de roulement, et la transmission des efforts. Dans le cas d'un guidage partiel, on intègrera un circuit de recyclage des éléments de roulement.The path guide provides, through the rolling elements, the lateral, axial and radial guide of the rolling flange, and the transmission of forces. In the case of partial guidance, a recycling circuit of the rolling elements will be incorporated.
Le guide unique, ou l'ensemble des parties de guide, constitue le moyeu annulaire de la roue flexible.The single guide, or all of the guide portions, constitutes the annular hub of the flexible wheel.
Le moyeu peut comporter des éléments complémentaires, notamment pour la fixation et le maintien du ou des partie de guide de trajectoire 2, et pour la liaison au véhicule. Il peut comporter plusieurs zones, rigides, ou plus ou moins souples, selon les contraintes supportées par la portion de trajectoire considérées, et les fonctions à remplir: zone de transmission des efforts au sol, zone de liaison au véhicule, zone de liaison à la suspension, zone de déformation, etc.The hub may comprise complementary elements, in particular for the attachment and maintenance of the trajectory guide part or
Selon le besoin, et selon les zones de la trajectoire, les parties de guide peuvent être intégrées dans une empreinte ad-hoc du véhicule, de manière rigide, ou élastique ou guidées par des supports liés ou articulés sur le véhicule, de manière rigide, ou élastique. Ces parties de guides peuvent être contraintes de toute autre manière ou totalement libres.According to the need, and according to the zones of the trajectory, the guide parts can be integrated in an ad hoc imprint of the vehicle, rigidly or elastically or guided by supports connected or articulated on the vehicle, rigidly, or elastic. These guide parts may be otherwise constrained or completely free.
Le guide de trajectoire 2 forme un moyeu annulaire qui peut être flexible.The
Selon une variante représentée à la
L'organe de roulement selon l'invention peut s'appliquer à des équipements de loisir, de déplacement, ou de transport individuel: Skateboard, fauteuil roulant, poussette, brouette, bagages, etc... ou équiper de nombreux types d'équipements mobiles et de véhicules.The running gear according to the invention can be applied to leisure, travel or individual transport equipment: skateboard, wheelchair, stroller, wheelbarrow, luggage, etc ... or equip many types of equipment mobiles and vehicles.
Par ailleurs, il est possible de lui adjoindre, des éléments de suspension, un système de freinage, un système anti-recul, débrayable si possible, une motorisation, et autres fonctionnalités ou accessoires.Moreover, it is possible to add to it, suspension elements, a braking system, an anti-recoil system, disengageable if possible, a motor, and other features or accessories.
Claims (15)
- A rolling member having:- a track (2), and- a moving part (1) able to move relative to the track (2) and designed to form a rolling strip (10) travelling in a closed circuit,where the moving part (1) comprises a flexible and continuous movement bead, characterized in that the track (2) is designed to guide the moving part (1) along a skew path of variable curvature.
- The member (1) according to claim 1, also comprising revolving rolling elements (5) arranged between a rolling surface (11) of the moving part (1) and the track (2) so as to facilitate the relative movement between the track and the moving part.
- The member according to one of the preceding claims, wherein the track has or includes one or more flexible parts.
- The member according to one of the preceding claims, wherein the bead (1) can contain a center (12) made from a more tender material, or a foam, or an empty space filled with a pressurized gas.
- The member according to one of claims 2 or 3 and claim 4, wherein the bead (1) is an assembly of several elements made up of different materials attached in order to obtain different mechanical properties for the rolling strip, the rolling surface (11) and the center (12), as well as the elastic flexibility it needs.
- The member according to one of the preceding claims, wherein the bead (1) has cavities (13) facing the inside of the track intended to cooperate with means intended to stress the movement in a single direction.
- A member according to one of the preceding claims, comprising braking means cooperating with the movement bead (1).
- The member according to one of the preceding claims, wherein the bead (1) comprises at least two rolling surfaces between which a flexible core (20) is arranged so as to ensure the necessary rigidity for the transmission of guiding and resistance forces of the movement bead (1).
- The member according to one of the preceding claims, wherein the track (2) includes rolling paths (2a) making it possible to guide the movement of the rolling element (5), the movement bead comprises a rolling surface (11), the rolling elements (5) thus being housed between the rolling surface (11) of the movement bead and the rolling path (2a).
- The member according to one of the preceding claims, wherein the rolling elements comprise at least one roller (5b, 5c) whereof the axis of rotation is secured to the track, the movement bead comprising a rolling surface (11) on which the rolling elements (5b, 5c) bear.
- The member according to one of the preceding claims, wherein the track (2) is arranged so that the bead has several distinct contact zones with a movement surface.
- A piece of equipment or individual movement, athletic or recreational skate comprising a rolling member according to one of claims 1 to 11.
- The equipment according to claim 12, equipped with a foot-rest plate, intended to receive both of the skater's feet, who uses it as a skateboard, snowboard, or surfboard.
- A piece of equipment for any use able to allow or facilitate the movement of people or goods comprising a rolling member according to one of claims 1 to 11.
- A land vehicle comprising a rolling member according to one of claims 1 to 11.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR0800536A FR2927000A1 (en) | 2008-01-31 | 2008-01-31 | ALL-TERRAIN POLYVALENT ONLINE SKATE EQUIPPED WITH A SINGLE WHEEL WITH CONTROLLED ELASTIC DEFORMATION THROUGH ORBITAL ROLLING GUIDANCE |
PCT/FR2009/050138 WO2009095625A2 (en) | 2008-01-31 | 2009-01-30 | Rolling member |
Publications (2)
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EP2237844A2 EP2237844A2 (en) | 2010-10-13 |
EP2237844B1 true EP2237844B1 (en) | 2011-08-31 |
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EP09705794A Not-in-force EP2237844B1 (en) | 2008-01-31 | 2009-01-30 | Rolling member |
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EP (1) | EP2237844B1 (en) |
CN (1) | CN101925385B (en) |
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BR (1) | BRPI0907623A2 (en) |
FR (1) | FR2927000A1 (en) |
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CN103158796B (en) * | 2013-03-15 | 2015-05-20 | 黄刚 | Continuous track walking mechanism |
US9937408B2 (en) * | 2016-03-08 | 2018-04-10 | TianDe Mo | Wearable motorized device |
CN106039688B (en) * | 2016-05-12 | 2019-02-05 | 秦波 | A kind of walking accelerator is walked to take turns boots cruelly |
US9925453B1 (en) | 2016-11-17 | 2018-03-27 | Raja Singh Tuli | Motorized walking shoes |
WO2019019905A1 (en) * | 2017-07-27 | 2019-01-31 | 纳恩博(北京)科技有限公司 | Roller skating device and electric balance vehicle |
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-
2008
- 2008-01-31 FR FR0800536A patent/FR2927000A1/en not_active Withdrawn
-
2009
- 2009-01-30 EP EP09705794A patent/EP2237844B1/en not_active Not-in-force
- 2009-01-30 AT AT09705794T patent/ATE522260T1/en not_active IP Right Cessation
- 2009-01-30 WO PCT/FR2009/050138 patent/WO2009095625A2/en active Application Filing
- 2009-01-30 CN CN2009801028444A patent/CN101925385B/en not_active Expired - Fee Related
- 2009-01-30 BR BRPI0907623-9A patent/BRPI0907623A2/en not_active IP Right Cessation
- 2009-01-30 US US12/865,093 patent/US20110059664A1/en not_active Abandoned
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ATE522260T1 (en) | 2011-09-15 |
WO2009095625A2 (en) | 2009-08-06 |
FR2927000A1 (en) | 2009-08-07 |
WO2009095625A3 (en) | 2009-09-24 |
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