EP0898992A1 - Wheel for rollerskates with outer strip - Google Patents

Wheel for rollerskates with outer strip Download PDF

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Publication number
EP0898992A1
EP0898992A1 EP98114264A EP98114264A EP0898992A1 EP 0898992 A1 EP0898992 A1 EP 0898992A1 EP 98114264 A EP98114264 A EP 98114264A EP 98114264 A EP98114264 A EP 98114264A EP 0898992 A1 EP0898992 A1 EP 0898992A1
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EP
European Patent Office
Prior art keywords
tread
wheel
wheel according
layer
hub
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.)
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EP98114264A
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German (de)
French (fr)
Inventor
Philippe Galy
Emmanuel Joumard
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Salomon SAS
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Salomon SAS
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Publication of EP0898992A1 publication Critical patent/EP0898992A1/en
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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
    • A63C17/223—Wheel hubs

Definitions

  • the invention relates to a roller skate wheel, in particular a skate whose wheels or "casters" are in line.
  • the wheels are skate bodies which must be simple and robust. Since the wheels come in a big part in the price of skates, their cost must be optimized.
  • They usually consist of one or more layers molded on a hub.
  • the layer in contact with the ground i.e. the tread
  • the materials very adhesives like rubber are heavier than others materials which can also be used to form the layer bearing such as TPU or PUR.
  • a wheel with a tread has a central part (in axial direction) relatively hard, flanked by side parts with good qualities but flexible.
  • a skate with wheels of this type has good speed performance when the skater progresses in a straight line, and good grip qualities when the skater progresses along a curve.
  • the invention overcomes these drawbacks.
  • the wheel according to the invention is characterized in that it comprises an adherent and flexible tread reinforced at least partially by a rigid frame.
  • the presence of a rigid reinforcement allows reduce the thickness of the tread while optimizing the effectiveness of this in all phases of skating, because that it reduces its deformations.
  • the frame is for example constituted by a layer of stiffening in contact with the internal face of the strip of rolling.
  • a layer is provided damping between the frame and the wheel hub.
  • the reinforcement forecast increases the amount of layer shock absorbing compared to usual wheels, without reinforcement, and therefore increase the damping characteristics while retaining good rigidity.
  • the frame has a width, in the direction axial, corresponding to a large fraction of the total width of the wheel.
  • the pressure of the wheel against the ground is transmitted at a large width (or over the entire width) of the layer damping and the effects of this layer are maximized.
  • the peripheral surface of the hub has a U-shaped profile, the branches of the U constituting flanges trapping the material depreciation.
  • the wheel shown in this figure has a hub 10 with an axle 12 having a central opening with housings 14 and 16 for ball bearings (not shown).
  • the peripheral part 18 of the hub 10 has, in its part central, a groove 20 intended to facilitate the attachment of a cushioning layer 22 molded around the outer surface hub 10.
  • the damping layer 22 is in contact, opposite to the outer surface of the hub 10, with a frame 24 and this armature 24 is covered by a tread 26, having adhesion and wear resistance properties, and that is therefore relatively flexible.
  • This tread 26 with the peripheral part 18 of the hub 10, traps the assembly formed by the damping layer 22 and the armature 24. Thus, this tread 26 is in contact with the external surface 28 of the frame 24 and with the lateral parts 30 and 32 of the damping layer 22.
  • the tread present in its part central 34 - in the direction of the axis - more thickness important than in its lateral parts 36 and 38.
  • the parts side 36 and 38 have a substantially uniform thickness while that the central part 34 has a thickness which increases gradually from the edges towards the center.
  • the frame 24 has at the center 40 a greater thickness. important than on edges 42 and 44. More precisely the face inner 46 (i.e. the face in contact with the layer 22) of the armature 24 has a small radius of curvature while the outer face 28 has a greater curvature.
  • the armature 24 1 has on the contrary a substantially constant thickness and completely surrounds the damping layer 22 1 .
  • FIG. 1 gives great flexibility of the wheel in radial direction and therefore promotes greater amortization, while the realization of the figure gives it a greater lateral rigidity and therefore promotes better guidance.
  • the frame 24 makes it possible to optimize the tread performance because it reduces deformations of the latter, and its presence therefore makes it possible to improve notably the performances, in particular of speeds, both in line right than in curves.
  • the specific mass of the component material the reinforcement 24 is less than the specific mass of the material component the tread 26 and the specific mass of the material of the cushioning layer 22. In this way, the wheel is reduced, in particular because the thickness of the strip 26 - the heavier - is minimized. In addition, more cushioning material.
  • the wheel according to the invention will be both more rigid laterally and more shock absorbing than traditional wheel.
  • the embodiment of the invention shown in Figure 2 differs from that shown in Figure 1 mainly by the fact that the hub 10 has in section, at its periphery, a U shape with lateral branches 50 and 52 trapping the damping layer 22 over part of its height towards radial. Furthermore, as in the case of FIG. 1, the strip of bearing 26, with the U-shaped outer surface of the hub, traps the damping layer 22 and the reinforcement 24.
  • branches 50 and 52 of the U further improves damping because these branches limit deformation even more layer 22 in the axial direction.
  • the flexions lateral are limited which improves the maneuverability, especially during changes of direction.
  • the tread 26 has, in the examples described, a thickness between 2 and 5 mm, and a hardness between 50 and 85 shore A.
  • current wheels with rubber have a very thick one-piece tread superior.
  • the radial deformability of the wheel is between 2 and 4 mm approximately, under a compression load of 75 daN.
  • the materials that can be used to make the strip bearings are, for example, a thermosetting polyurethane loaded or not, or rubber. This layer can be produced by injection, gravity casting or vulcanization.
  • the frame 24 is made of any material more rigid than the tread.
  • the frame is preferably made up of metal or composite material. It can be a braid or a ring pierced or not made of one of these materials.
  • the band of bearing is chosen from the polyurethanes of PUR or TPU type, amide block polyethers (PEBA), polyether ester block (PEBE) or rubbers.
  • the materials that can be used are, in particular, a thermosetting polyurethane, a block polyether amide, a polyether block ester or a polybutylene terephthalate to polyether base.
  • the molding is carried out by injection or by casting.
  • the hub can be made of various materials, including aluminum, polyamide, polyurethane, polybutylene terephthalate, a polycarbonate or an alloy of magnesium or titanium.
  • This hub can be produced by molding, injection, casting gravity, extrusion or by stamping, forging or stamping.
  • this hub can be made in one single part but also in two or more parts assembled by welding, machining, crimping or gluing.
  • the hardness of the cushioning layer is between 50 and 85 shore A, and that of the tread between 50 and 85 shore A.

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  • Tires In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The skate wheel is made with a tread (26) of an adhesive supple material and has a rigid reinforcing element (24) with one face (28) in contact with the tread's inner surface. The reinforcing element covers a substantial portion of the wheel's width opposite the thicker middle region of the tread, and a shock absorbing layer (22) is incorporated between the reinforcing element and the wheel hub (10). The tread is 2 - 5 mm thick, and can be made from rubber or a polymer, and produced by injection, gravity flow or vulcanization. The reinforcing element can be made from any material which is harder than the tread, e.g. of metal or a composition material, and the shock absorbing layer can be made from a polymer. The wheel hub can be made from a variety of materials, e.g. aluminum or a polymer, or a magnesium-titanium alloy, made by molding, injection, gravity flow, extrusion or stamping, forging or pressing in one piece or in a number of pieces joined by machining, crimping or adhesion.

Description

L'invention concerne une roue pour patin à roulettes, notamment un patin dont les roues ou "roulettes" sont en ligne.The invention relates to a roller skate wheel, in particular a skate whose wheels or "casters" are in line.

Les roues sont des organes de patin qui doivent être simples et robustes. Etant donné que les roues entrent pour une part importante dans le prix des patins, leur coût doit être optimisé.The wheels are skate bodies which must be simple and robust. Since the wheels come in a big part in the price of skates, their cost must be optimized.

Elles sont constituées le plus souvent d'une ou plusieurs couches moulées sur un moyeu.They usually consist of one or more layers molded on a hub.

La simplicité de la structure n'est pas toujours compatible avec l'optimisation des performances.The simplicity of the structure is not always compatible with performance optimization.

Il en est ainsi, en particulier, quand la couche en contact avec le sol, c'est-à-dire la bande de roulement, présente des qualités maximales d'adhérence, car les couches adhérentes sont souples et déformables et la déformabilité n'est pas favorable aux performances, notamment à la vitesse. De plus, les matériaux très adhérents comme le caoutchouc sont plus lourds que d'autres matériaux pouvant être également utilisés pour constituer la couche de roulement tels que le TPU ou PUR.This is so, in particular, when the layer in contact with the ground, i.e. the tread, has qualities maximum adhesion, because the adherent layers are flexible and deformable and deformability is not favorable to performance, especially speed. In addition, the materials very adhesives like rubber are heavier than others materials which can also be used to form the layer bearing such as TPU or PUR.

Pour concilier l'adhérence et les performances, en particulier de vitesses, on a déjà proposé une roue dont la bande de roulement présente une partie centrale (en direction axiale) relativement dure, flanquée de parties latérales ayant des bonnes qualités d'adhérence mais qui sont souples. Un patin doté de roues de ce type présente de bonnes performances de vitesses lorsque le patineur progresse en ligne droite, et de bonnes qualités d'adhérence lorsque le patineur progresse selon une courbe.To reconcile grip and performance, especially speeds, we have already proposed a wheel with a tread has a central part (in axial direction) relatively hard, flanked by side parts with good qualities but flexible. A skate with wheels of this type has good speed performance when the skater progresses in a straight line, and good grip qualities when the skater progresses along a curve.

Cependant en ligne droite l'adhérence n'est pas satisfaisante et en courbe la vitesse ne peut pas être importante. Par ailleurs, la partie centrale dure empêche toute qualité d'amortissement de la roue.However in a straight line the grip is not satisfactory and in curves the speed cannot be important. In addition, the hard central part prevents any quality of damping of the wheel.

D'une manière générale, les qualités d'adhérence, de rigidité, d'amortissement et de légèreté d'une roue ne sont pas conciliables.In general, the qualities of adhesion, rigidity, damping and lightness of a wheel cannot be reconciled.

L'invention remédie à ces inconvénients.The invention overcomes these drawbacks.

La roue selon l'invention est caractérisée en ce qu'elle comporte une bande de roulement adhérente et souple renforcée au moins partiellement par une armature rigide.The wheel according to the invention is characterized in that it comprises an adherent and flexible tread reinforced at least partially by a rigid frame.

A rigidité égale, la présence d'une armature rigide permet de réduire l'épaisseur de la bande de roulement tout en optimisant l'efficacité de celle-ci dans toutes les phases du patinage, du fait qu'elle réduit les déformations de celle-ci.At equal rigidity, the presence of a rigid reinforcement allows reduce the thickness of the tread while optimizing the effectiveness of this in all phases of skating, because that it reduces its deformations.

L'armature est par exemple constituée par une couche de raidissement en contact avec la face interne de la bande de roulement.The frame is for example constituted by a layer of stiffening in contact with the internal face of the strip of rolling.

Dans le mode de réalisation préféré on prévoit une couche d'amortissement entre l'armature et le moyeu de la roue. La prévision de l'armature permet d'augmenter la quantité de couche amortissante par rapport aux roues usuelles, sans armature, et donc d'augmenter les caractéristiques d'amortissement tout en conservant une bonne rigidité.In the preferred embodiment a layer is provided damping between the frame and the wheel hub. The reinforcement forecast increases the amount of layer shock absorbing compared to usual wheels, without reinforcement, and therefore increase the damping characteristics while retaining good rigidity.

Avantageusement, l'armature présente une largeur, en direction axiale, correspondant à une fraction importante de la largeur totale de la roue. Ainsi la pression de la roue contre le sol est transmise à une largeur importante (ou sur toute la largeur) de la couche d'amortissement et les effets de cette couche sont maximisés.Advantageously, the frame has a width, in the direction axial, corresponding to a large fraction of the total width of the wheel. Thus the pressure of the wheel against the ground is transmitted at a large width (or over the entire width) of the layer damping and the effects of this layer are maximized.

Quand on prévoit une couche d'amortissement, il est avantageux que la surface périphérique du moyeu présente un profil en U, les branches du U constituant des flasques emprisonnant le matériau d'amortissement.When planning a cushioning layer, it is advantageous that the peripheral surface of the hub has a U-shaped profile, the branches of the U constituting flanges trapping the material depreciation.

D'autres caractéristiques et avantages de l'invention apparaítront avec la description de certains de ses modes de réalisation, celle-ci étant effectuée en se référant aux dessins ci-annexés sur lesquels :

  • la figure 1 est une demie-vue en coupe axiale d'une roue selon l'invention,
  • la figure 1a est une vue partielle correspondant à une variante,
  • la figure 2 une vue en coupe axiale d'un autre mode de réalisation.
    • Other characteristics and advantages of the invention will appear with the description of some of its embodiments, this being carried out with reference to the attached drawings in which:
  • FIG. 1 is a half view in axial section of a wheel according to the invention,
  • FIG. 1a is a partial view corresponding to a variant,
  • Figure 2 an axial sectional view of another embodiment.

    • On se réfère tout d'abord à la figure 1.We first refer to Figure 1.

    La roue représentée sur cette figure comporte un moyeu 10 d'axe 12 présentant une ouverture centrale avec des logements 14 et 16 pour des roulements à billes (non montrés).The wheel shown in this figure has a hub 10 with an axle 12 having a central opening with housings 14 and 16 for ball bearings (not shown).

    La partie périphérique 18 du moyeu 10 présente, dans sa partie centrale, une gorge 20 destinée à faciliter l'accrochage d'une couche d'amortissement 22 surmoulée autour de la surface extérieure du moyeu 10.The peripheral part 18 of the hub 10 has, in its part central, a groove 20 intended to facilitate the attachment of a cushioning layer 22 molded around the outer surface hub 10.

    La couche d'amortissement 22 est en contact, à l'opposé de la surface extérieure du moyeu 10, avec une armature 24 et cette armature 24 est recouverte par une bande de roulement 26, ayant des propriétés d'adhérence et de résistance à l'usure, et qui est donc relativement souple.The damping layer 22 is in contact, opposite to the outer surface of the hub 10, with a frame 24 and this armature 24 is covered by a tread 26, having adhesion and wear resistance properties, and that is therefore relatively flexible.

    Cette bande de roulement 26, avec la partie périphérique 18 du moyeu 10, emprisonne l'ensemble formé par la couche d'amortissement 22 et l'armature 24. Ainsi, cette bande de roulement 26 est en contact avec la surface extérieure 28 de l'armature 24 et avec les parties latérales 30 et 32 de la couche d'amortissement 22.This tread 26, with the peripheral part 18 of the hub 10, traps the assembly formed by the damping layer 22 and the armature 24. Thus, this tread 26 is in contact with the external surface 28 of the frame 24 and with the lateral parts 30 and 32 of the damping layer 22.

    Dans l'exemple la bande de roulement présente dans sa partie centrale 34 - dans la direction de l'axe - une épaisseur plus importante que dans ses parties latérales 36 et 38. Les parties latérales 36 et 38 ont une épaisseur sensiblement uniforme tandis que la partie centrale 34 présente une épaisseur qui augmente progressivement depuis les bords vers le centre.In the example the tread present in its part central 34 - in the direction of the axis - more thickness important than in its lateral parts 36 and 38. The parts side 36 and 38 have a substantially uniform thickness while that the central part 34 has a thickness which increases gradually from the edges towards the center.

    De même, l'armature 24 présente au centre 40 une épaisseur plus importante que sur les bords 42 et 44. De façon plus précise la face intérieure 46 (c'est-à-dire la face en contact avec la couche 22) de l'armature 24 présente un faible rayon de courbure tandis que la face extérieure 28 présente une courbure plus importante.Likewise, the frame 24 has at the center 40 a greater thickness. important than on edges 42 and 44. More precisely the face inner 46 (i.e. the face in contact with the layer 22) of the armature 24 has a small radius of curvature while the outer face 28 has a greater curvature.

    Dans la variante représentée sur la figure 1a l'armature 241 présente au contraire une épaisseur sensiblement constante et entoure complètement la couche d'amortissement 221.In the variant shown in FIG. 1a, the armature 24 1 has on the contrary a substantially constant thickness and completely surrounds the damping layer 22 1 .

    La réalisation de la figure 1 confère une grande souplesse de la roue en direction radiale et favorise donc un plus grand amortissement, tandis que la réalisation de la figure la confère une plus grande rigidité latérale et favorise donc un meilleur guidage.The embodiment of FIG. 1 gives great flexibility of the wheel in radial direction and therefore promotes greater amortization, while the realization of the figure gives it a greater lateral rigidity and therefore promotes better guidance.

    L'adhérence de la roue au sol est assurée correctement pour la progression du patineur en ligne droite et en courbe, car la bande de roulement adhérente 26 constitue une couche continue présente sur toute la périphérie. En outre, l'armature 24 permet d'optimiser les performances de la bande de roulement du fait qu'elle réduit les déformations de celle-ci, et sa présence permet donc d'améliorer notablement les performances, notamment de vitesses, tant en ligne droite que dans les courbes.The grip of the wheel on the ground is ensured correctly for the progression of the skater in a straight line and in a curve, because the strip of adherent bearing 26 constitutes a continuous layer present on the whole periphery. In addition, the frame 24 makes it possible to optimize the tread performance because it reduces deformations of the latter, and its presence therefore makes it possible to improve notably the performances, in particular of speeds, both in line right than in curves.

    Par ailleurs, grâce à l'armature 24, on obtient une grande efficacité de la couche d'amortissement 22, car cette armature répartit sur pratiquement toute la largeur de la couche 22 la pression qui est exercée, de façon plus localisée, par le contact entre la partie centrale 34 de la bande de roulement 26 avec le sol. Furthermore, thanks to the frame 24, a large effectiveness of the damping layer 22, because this reinforcement spread over practically the entire width of layer 22 the pressure which is exerted, in a more localized way, by the contact between the central part 34 of the tread 26 with the ground.

    De préférence, la masse spécifique du matériau composant l'armature 24 est inférieure à la masse spécifique du matériau composant la bande de roulement 26 et à la masse spécifique du matériau de la couche d'amortissement 22. De cette manière, la roue est allégée, notamment parce que l'épaisseur de la bande 26 - la plus lourde - est minimisée. En outre on peut prévoir davantage de matériau d'amortissement.Preferably, the specific mass of the component material the reinforcement 24 is less than the specific mass of the material component the tread 26 and the specific mass of the material of the cushioning layer 22. In this way, the wheel is reduced, in particular because the thickness of the strip 26 - the heavier - is minimized. In addition, more cushioning material.

    D'une manière générale, à poids égal, la roue selon l'invention sera à la fois plus rigide latéralement et plus amortissante qu'une roue traditionnelle.In general, for the same weight, the wheel according to the invention will be both more rigid laterally and more shock absorbing than traditional wheel.

    Le mode de réalisation de l'invention représenté sur la figure 2 se distingue de celui représenté sur la figure 1 principalement par le fait que le moyeu 10 présente en section, à sa périphérie, une forme de U avec des branches latérales 50 et 52 emprisonnant la couche d'amortissement 22 sur une partie de sa hauteur en direction radiale. Par ailleurs, comme dans le cas de la figure 1, la bande de roulement 26, avec la surface extérieure en forme de U du moyeu, emprisonne la couche d'amortissement 22 et l'armature 24.The embodiment of the invention shown in Figure 2 differs from that shown in Figure 1 mainly by the fact that the hub 10 has in section, at its periphery, a U shape with lateral branches 50 and 52 trapping the damping layer 22 over part of its height towards radial. Furthermore, as in the case of FIG. 1, the strip of bearing 26, with the U-shaped outer surface of the hub, traps the damping layer 22 and the reinforcement 24.

    La présence des branches 50 et 52 du U améliore encore l'amortissement car ces branches limitent encore plus la déformation de la couche 22 en direction axiale. En outre, les flexions latérales sont limitées ce qui améliore la manoeuvrabilité, notamment lors des changements de direction.The presence of branches 50 and 52 of the U further improves damping because these branches limit deformation even more layer 22 in the axial direction. In addition, the flexions lateral are limited which improves the maneuverability, especially during changes of direction.

    La bande de roulement 26 a, dans les exemples décrits, une épaisseur comprise entre 2 et 5 mm, et une dureté comprise entre 50 et 85 shore A. A titre comparatif, les roues actuelles comportant du caoutchouc ont une bande de roulement monobloc d'épaisseur très supérieure.The tread 26 has, in the examples described, a thickness between 2 and 5 mm, and a hardness between 50 and 85 shore A. For comparison, current wheels with rubber have a very thick one-piece tread superior.

    La déformabilité radiale de la roue est comprise entre 2 et 4 mm environ, sous une charge de compression de 75 daN.The radial deformability of the wheel is between 2 and 4 mm approximately, under a compression load of 75 daN.

    Les matériaux que l'on peut utiliser pour constituer la bande de roulement sont, par exemple, un polyuréthanne thermodurcissable chargé ou non, ou du caoutchouc. Cette couche peut être réalisée par injection, coulée gravitée ou par vulcanisation.The materials that can be used to make the strip bearings are, for example, a thermosetting polyurethane loaded or not, or rubber. This layer can be produced by injection, gravity casting or vulcanization.

    L'armature 24 est constituée en tout matériau plus rigide que la bande de roulement. L'armature est préférablement constituée en métal ou en matériau composite. Il peut s'agir d'une tresse ou d'un anneau percé ou non réalisé dans un de ces matériaux. La bande de roulement est, quant à elle, choisie parmi les polyuréthannes de type PUR ou TPU, les polyethers bloc amide (PEBA), les polyether bloc ester (PEBE) ou les caoutchoucs.The frame 24 is made of any material more rigid than the tread. The frame is preferably made up of metal or composite material. It can be a braid or a ring pierced or not made of one of these materials. The band of bearing is chosen from the polyurethanes of PUR or TPU type, amide block polyethers (PEBA), polyether ester block (PEBE) or rubbers.

    Pour la couche d'amortissement 22 les matériaux utilisables sont, notamment, un polyuréthanne thermodurcissable, un polyéther bloc amide, un polyether bloc ester ou un polybutylène téréphtalate à base de polyéther. Le moulage s'effectue par injection ou par coulée.For the damping layer 22, the materials that can be used are, in particular, a thermosetting polyurethane, a block polyether amide, a polyether block ester or a polybutylene terephthalate to polyether base. The molding is carried out by injection or by casting.

    Le moyeu peut être réalisé en divers matériaux, notamment l'aluminium, un polyamide, un polyuréthanne, un polybutylène téréphtalate, un polycarbonate ou un alliage de magnésium ou de titane. Ce moyeu est réalisable par moulage, par injection, coulée gravitée, extrusion ou par estampage, forgeage ou matriçage.The hub can be made of various materials, including aluminum, polyamide, polyurethane, polybutylene terephthalate, a polycarbonate or an alloy of magnesium or titanium. This hub can be produced by molding, injection, casting gravity, extrusion or by stamping, forging or stamping.

    Comme montré à la figure 1, ce moyeu peut être réalisé en une seule partie mais également en deux ou plusieurs parties assemblées par soudage, par usinage, par sertissage ou par collage.As shown in Figure 1, this hub can be made in one single part but also in two or more parts assembled by welding, machining, crimping or gluing.

    La dureté de la couche d'amortissement est comprise entre 50 et 85 shore A, et celle de la bande de roulement entre 50 et 85 shore A.The hardness of the cushioning layer is between 50 and 85 shore A, and that of the tread between 50 and 85 shore A.

    Bien entendu, la présente invention n'est pas limitée aux exemples de réalisation qui viennent d'être montrés et décrits mais elle inclut tout mode de réalisation couvert par les revendications qui suivent.Of course, the present invention is not limited to the examples which have just been shown and described but it includes any embodiment covered by the claims which follow.

    Claims (16)

    Roue pour patin à roulettes, caractérisée en ce qu'elle comporte une bande de roulement (26) en une matière adhérente et souple renforcée au moins partiellement par une armature rigide (24).Roller skate wheel, characterized in that it comprises a tread (26) made of an adherent material and flexible reinforced at least partially by a rigid reinforcement (24). Roue selon la revendication 1, caractérisée en ce que l'armature présente une face (28) en contact avec la face interne de la bande de roulement.Wheel according to claim 1, characterized in that the armature has a face (28) in contact with the internal face of the tread. Roue selon la revendication 1 ou 2, caractérisée en ce que l'armature occupe une fraction importante de la largeur, en direction axiale, de la roue.Wheel according to claim 1 or 2, characterized in that the reinforcement occupies a significant fraction of the width, in axial direction of the wheel. Roue selon l'une quelconque des revendications précédentes, caractérisée en ce que la bande de roulement présente une épaisseur maximale dans sa partie centrale (34).Wheel according to any one of the preceding claims, characterized in that the tread has a thickness maximum in its central part (34). Roue selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une couche d'amortissement (22) est disposée entre l'armature et la périphérie du moyeu (10) de la roue.Wheel according to any one of the preceding claims, characterized in that a cushioning layer (22) is arranged between the frame and the periphery of the hub (10) of the wheel. Roue selon la revendication 5, caractérisée en ce que la couche d'amortissement et l'armature sont emprisonnées dans un logement constitué par la périphérie du moyeu et par la bande de roulement.Wheel according to claim 5, characterized in that the layer cushioning and the frame are trapped in a housing constituted by the periphery of the hub and by the tread. Roue selon la revendication 6, caractérisée en ce que l'armature présente une épaisseur maximale dans sa partie centrale, en direction axiale, et une épaisseur minimale à ses extrémités latérales (36, 38).Wheel according to claim 6, characterized in that the reinforcement has a maximum thickness in its central part, in the axial direction, and a minimum thickness at its ends side (36, 38). Roue selon l'une quelconque des revendications 1 à 6, caractérisée en ce que l'armature (241) présente une épaisseur constante.Wheel according to any one of Claims 1 to 6, characterized in that the armature (24 1 ) has a constant thickness. Roue selon la revendication 5, caractérisée en ce que l'armature (241) emprisonne la couche d'amortissement (221).Wheel according to claim 5, characterized in that the reinforcement (24 1 ) traps the damping layer (22 1 ). Roue selon la revendication 2, caractérisée en ce que l'armature présente une forme incurvée.Wheel according to claim 2, characterized in that the frame has a curved shape. Roue selon la revendication 5, caractérisée en ce qu'en section par un plan passant par l'axe (12), le moyeu (10) de la roue présente à sa périphérie la forme d'un U dont les branches forment des flasques entre lesquels se trouve la couche d'amortissement.Wheel according to claim 5, characterized in that section through a plane passing through the axis (12), the hub (10) of the wheel has at its periphery the shape of a U whose branches form flanges between which is the cushioning layer. Roue selon l'une quelconque des revendications précédentes, caractérisée en ce que l'armature est en un matériau plus rigide que la bande de roulement. Wheel according to any one of the preceding claims, characterized in that the frame is made of a more rigid material than the tread. Roue selon l'une quelconque des revendications précédentes, caractérisée en ce que la dureté de la bande de roulement est comprise entre 50 et 85 shore A.Wheel according to any one of the preceding claims, characterized in that the hardness of the tread is between 50 and 85 shore A. Roue selon l'une quelconque des revendications précédentes, caractérisée en ce que la roue présente une déformabilité radiale comprise entre 2 et 4 mm environ sous une charge de compression de 75 daN.Wheel according to any one of the preceding claims, characterized in that the wheel has radial deformability between 2 and 4 mm approximately under a compression load of 75 daN. Roue selon l'une quelconque des revendications précédentes, caractérisée en ce que la dureté de la couche d'amortissement est comprise entre 50 et 85 shore A.Wheel according to any one of the preceding claims, characterized in that the hardness of the damping layer is between 50 and 85 shore A. Roue selon l'une quelconque des revendications précédentes, caractérisée en ce que la bande de roulement a une épaisseur comprise entre 2 et 5 mm.Wheel according to any one of the preceding claims, characterized in that the tread has a thickness between 2 and 5 mm.
    EP98114264A 1997-08-28 1998-07-30 Wheel for rollerskates with outer strip Withdrawn EP0898992A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9710984A FR2767710B1 (en) 1997-08-28 1997-08-28 WHEEL FOR A WHEELED SKATE WITH A TREAD
    FR9710984 1997-08-28

    Publications (1)

    Publication Number Publication Date
    EP0898992A1 true EP0898992A1 (en) 1999-03-03

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    ID=9510740

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98114264A Withdrawn EP0898992A1 (en) 1997-08-28 1998-07-30 Wheel for rollerskates with outer strip

    Country Status (3)

    Country Link
    EP (1) EP0898992A1 (en)
    FR (1) FR2767710B1 (en)
    TW (1) TW383230B (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2369604A (en) * 2000-12-01 2002-06-05 Far Great Plastics Ind Co Ltd Wheel for skates or skateboards
    WO2002094121A1 (en) * 2001-05-24 2002-11-28 Benetton Group S.P.A. A method for manufacturing a wheel and a wheel obtained thereby
    WO2004060506A1 (en) * 2003-01-02 2004-07-22 Mario Herzog Wheel

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2814373A1 (en) 2000-09-25 2002-03-29 David Artasona Roller skate shock absorber has rounded upper part in contact with absorber blade fixed to plate in three points
    KR101516799B1 (en) * 2013-08-09 2015-05-04 서진영 Two kinds of material inserted wheel

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    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB229745A (en) * 1923-11-23 1925-02-23 Walter Miller Metcalf Improvements in wheels for roller skates, toy wagons, furniture castors and other purposes
    DE628872C (en) * 1936-04-17 Friedrich Herkenrath Ben Hur R Rolls-on-roll with rubber tires consisting of superimposed layers of different hardness
    US2241685A (en) * 1938-07-07 1941-05-13 Chicago Roller Skate Co Wheel
    WO1995012497A1 (en) * 1993-11-04 1995-05-11 Wear And Tear, Inc. Improved performance skate wheel
    WO1997017116A1 (en) * 1995-11-03 1997-05-15 Mrk Handels-Ag Single-track roller skate and wheels for use therewith

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE628872C (en) * 1936-04-17 Friedrich Herkenrath Ben Hur R Rolls-on-roll with rubber tires consisting of superimposed layers of different hardness
    GB229745A (en) * 1923-11-23 1925-02-23 Walter Miller Metcalf Improvements in wheels for roller skates, toy wagons, furniture castors and other purposes
    US2241685A (en) * 1938-07-07 1941-05-13 Chicago Roller Skate Co Wheel
    WO1995012497A1 (en) * 1993-11-04 1995-05-11 Wear And Tear, Inc. Improved performance skate wheel
    WO1997017116A1 (en) * 1995-11-03 1997-05-15 Mrk Handels-Ag Single-track roller skate and wheels for use therewith

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2369604A (en) * 2000-12-01 2002-06-05 Far Great Plastics Ind Co Ltd Wheel for skates or skateboards
    WO2002094121A1 (en) * 2001-05-24 2002-11-28 Benetton Group S.P.A. A method for manufacturing a wheel and a wheel obtained thereby
    WO2004060506A1 (en) * 2003-01-02 2004-07-22 Mario Herzog Wheel

    Also Published As

    Publication number Publication date
    TW383230B (en) 2000-03-01
    FR2767710A1 (en) 1999-03-05
    FR2767710B1 (en) 1999-10-22

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