EP0279131B1 - Roller skate comprising a suspension system - Google Patents

Roller skate comprising a suspension system Download PDF

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Publication number
EP0279131B1
EP0279131B1 EP87402764A EP87402764A EP0279131B1 EP 0279131 B1 EP0279131 B1 EP 0279131B1 EP 87402764 A EP87402764 A EP 87402764A EP 87402764 A EP87402764 A EP 87402764A EP 0279131 B1 EP0279131 B1 EP 0279131B1
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EP
European Patent Office
Prior art keywords
pivoting
base
secured
axle
wheels
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EP87402764A
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German (de)
French (fr)
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EP0279131A1 (en
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Jean Bernard Marandel
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Individual
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Individual
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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
    • A63C17/14—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches
    • A63C17/1409—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches contacting one or more of the wheels
    • 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
    • A63C17/02—Roller skates; Skate-boards with wheels arranged in two pairs
    • 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
    • A63C17/14—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches
    • A63C17/1436—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches contacting the ground
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/26—Roller skates; Skate-boards with special auxiliary arrangements, e.g. illuminating, marking, or push-off devices

Definitions

  • the present invention relates to a roller skate comprising on the front and rear axles a suspension system.
  • skates of the type provided with a shoe fixed on a sole, which is integral with a plate provided at the front with a buffer acting as a brake and undercarriages front and rear consisting of two wheels, a fixed axle and wheel steering systems.
  • These wheel steering systems are activated by the force exerted by the weight of the skater, in relation to the position of this force relative to the longitudinal axis of the skate.
  • These steering systems are generally made up of elastic washers secured to the fixed axle by nuts and locknuts, in order to allow articulation and orientation movement of the fixed axle.
  • Document FR-A-1 489 079 describes in particular a roller skate secured to a plate and comprising front and rear undercarriages, a wheel steering system - and an axle.
  • the front and rear axles are movable and fitted with a suspension system comprising a base and a rocker.
  • the base is provided with two orifices intended to receive respectively a fixing pin and the end of a pivot.
  • the rocker is integral with the axle and comprises at one of its ends a plate in the form of a cup in the concave part of which abuts an elastic tubular damper threaded on the fixing axis.
  • a washer-pin assembly makes it possible to secure the suspension system in the hole in the base.
  • this elastic steering system does not act as a shock absorber and suspension when the skate passes over an obstacle. It is therefore necessary to provide a structure dissociating the two functions.
  • the object of the invention is to remedy this drawback by introducing a suspension system at the axles of a skate, which will be made mobile.
  • the purpose of the suspension system is, on the one hand, to avoid the roller skate, to the greatest extent possible, shocks and vibrations from the unevenness of the skating surface and, on the other hand, to ensure maximum comfort for the skater when skating.
  • roller skate of the type comprising, a shoe fixed on a sole secured to a plate and comprising a brake fixed at the front of the plate and comprising front and rear undercarriages equipped with two wheels, a wheel steering system and an axle.
  • the invention essentially consists in providing movable front and rear axles, provided with a suspension system, this being fixed on the one hand, in the central part of the movable axle , in line with the wheel axle and on the other hand, is guided by a centering barrel placed in the plate; these mobile axles are also equipped with a wheel steering system, fixed at one end in the plate by pivoting means while the other end is secured to the orientation plate of the mobile axle by elastic means.
  • the roller skate shown in FIG. 1, comprises a shoe (1) fixed on a sole (2), integral with a plate (3) and comprising a brake or buffer (4), fixed in front of the plate and comprises front (5) and rear (5 ⁇ ) undercarriages, equipped with two wheels (6 or 6 ⁇ ), a steering system (7 and 7 ⁇ ) of the wheels and a movable axle (8 and 8 ⁇ ).
  • the rear axle shown in FIG. 2 clearly shows a movable axle (8 ⁇ ), provided with a suspension system (9 ⁇ ), this being fixed on the one hand, in the central part (10 ⁇ ) of the axle mobile, in line with the wheel axle (6 ⁇ ) and on the other hand, is guided by a centering barrel (17) placed in the plate (3), the mobile axle (8 ⁇ ) is equipped with a steering system (7 ⁇ ), fixed to one end of the plate by pivoting means (11 ⁇ ), while the other end is secured to the orientation plate (12 ⁇ ) by elastic means consisting of two washers in rubber (13 or 13 ⁇ ).
  • the suspension system of the front axle is of the same principle as that of the rear axle, shown in Figure 2.
  • the suspension system consists of a spring (15) as well as a centering finger (34), which, by one end, is screwed into the central part (10 ⁇ ) of the movable axle (8 ⁇ ), while that the other end is extended by a rod (16), guided by the interior of the centering barrel (17), while the spring is guided by the top thanks or diameter of this barrel.
  • the spring (15) is chosen according to its stiffness, depending on the weight of the skate user.
  • the centering barrel (17) of the suspension system (9 ⁇ ) opens down into a cavity (30) and is crossed by a bore (31), of an ablong shape, which extends into the sole (2).
  • the width of the oblong bore (31) is substantially equivalent to the diameter of the rod (16).
  • the centering barrel is made of a self-lubricating material in order to allow the rod (16) of the centering finger (34) to slide freely in the oblong bore (31) of the barrel.
  • the operating principle of the suspension system is as follows: When the rear wheels (6 ⁇ ) of the skate encounter any obstacle, they will tend to move up and towards the rear of the skate in order to stress the suspension system ( 9 ⁇ ). This vertical movement of the wheels will cause a pivoting movement of the movable axle (8 ⁇ ) relative to the pivot axis (11). Approaching the plate (3), the movable axle puts stress on the suspension system (9 ⁇ ). The spring (15) will be crushed and will act as a shock absorber. The rod (16) of the centering finger (34) penetrates into the bore (31) of the centering barrel (17).
  • the steering system (7 ⁇ ) of the wheels is arranged in front of the suspension system.
  • the rear movable axle (8 ⁇ ) comprises a steering system (7 ⁇ ) of the wheels whose upper end, integral with the plate (3) consists of a pivot axis (11 ⁇ ) and a pivot (18), of cylindrical shape, introduced into a cavity (32) of the plate (3), the parallel end surfaces of the pivot being in close contact with the corresponding surfaces of this cavity (32).
  • the steering system comprises an articulated arm (21), two elastic washers (13 ⁇ ) and a lock nut (14 ⁇ ).
  • a pad (19) is provided to dampen the return of the articulated arm (21 ⁇ ) against an insert (20).
  • This insert on the lower part of the plate (3) is provided, at its two ends, with a bolt (19) which absorbs the shock after return of the articulated arm (21 ⁇ or 21).
  • the front axle shown in Figure 3 shows the steering system (7) in a partial section AA.
  • the suspension system is not shown, which is of the same design as for the rear undercarriage of the skate (see Figure 2).
  • the steering system (7) of the wheels is arranged behind the suspension system (see Figure 1).
  • the front movable axle (8) comprises a steering system (7) for the wheels, the upper part of which, integral with the plate (3), consists of two pivot axes (25), of a yoke (22), in the shape of a "U", the two parallel wings of which are in close contact with the respective external surfaces of the plate, these two wings of the yoke being provided with two oblong openings (33) which, in relation to the two axes (25), provide a vertical movement movement of the steering system.
  • the operating principle of the front suspension system is as follows: When the front wheels (6) of the skate encounter any obstacle, they tend to move upwards, in order to stress the suspension system (9). The movement of the wheels, and therefore of the front mobile axle, is done upwards but also backwards.
  • the suspension system (9) will normally be stressed, however, to obtain a slight pivoting movement of the movable axle (8) relative to the pivoting means (11), it is necessary to have a steering system ( 7) whose upper end, integral with the plate (3), is equipped with a flexible pivoting means.
  • the upper part of the steering system is equipped with a yoke (22), in the shape of a "U", the two parallel wings of which, surrounding the plate (3), are provided with two oblong openings (33). . These openings are crossed by two axes (25), in order to provide a flexible means of pivoting of the steering system.
  • a return spring (27) allows the screed (22) to return to position after the obstacle has passed.

Description

La présente invention concerne un patin à roulettes comportant sur les essieux avant et arrière un système de suspension.The present invention relates to a roller skate comprising on the front and rear axles a suspension system.

Dans le domaine du patin à roulettes On connait déjà des patins du type muni d'une chaussure fixée sur une semelle, laquelle est solidaire d'une platine munie à l'avant d'un tampon jouant le rôle de frein et de trains de roulement avant et arrière constitués de deux roues, d'un essieu fixe et de systèmes de direction des roues.In the field of roller skating There are already known skates of the type provided with a shoe fixed on a sole, which is integral with a plate provided at the front with a buffer acting as a brake and undercarriages front and rear consisting of two wheels, a fixed axle and wheel steering systems.

Ces systèmes de direction des roues sont actionnés grâce à la force exercée par le poids du patineur , en relation à la position de cette force par rapport à lʼaxe longitudinal du patin. Ces systèmes de direction sont, généralement, constitués de rondelles élastiques solidaires de l'essieu fixe par des écrous et contre-écrous, afin de permettre un mouvement d'articulation et d'orientation de l'essieu fixe.These wheel steering systems are activated by the force exerted by the weight of the skater, in relation to the position of this force relative to the longitudinal axis of the skate. These steering systems are generally made up of elastic washers secured to the fixed axle by nuts and locknuts, in order to allow articulation and orientation movement of the fixed axle.

Le document FR-A-1 489 079 décrit notamment un patin à roulettes solidaire d'une platine et comportant des trains de roulement avant et arrière, un système de direction des roues - et un essieu. Les essieux avant et arrière sont mobiles et munis d'un système de suspension comportant un socle et une bascule. Le socle est pourvu de deux orifices destinés à recevoir respectivement un axe de fixation et l'extrémité d'un pivot. La bascule est solidaire de l'essieu et comporte à l'une de ses extrémités une platine en forme de coupelle dans la partie concave de laquelle vient prendre appui un amortisseur tubulaire élastique enfilé sur l'axe de fixation. Un ensemble rondelle-axe de fixation permet d'assurer la fixation du système de suspension dans l'orifice du socle.Document FR-A-1 489 079 describes in particular a roller skate secured to a plate and comprising front and rear undercarriages, a wheel steering system - and an axle. The front and rear axles are movable and fitted with a suspension system comprising a base and a rocker. The base is provided with two orifices intended to receive respectively a fixing pin and the end of a pivot. The rocker is integral with the axle and comprises at one of its ends a plate in the form of a cup in the concave part of which abuts an elastic tubular damper threaded on the fixing axis. A washer-pin assembly makes it possible to secure the suspension system in the hole in the base.

Cependant, ce système de direction élastique ne joue pas le rôle d'amortisseur et de suspension lorsque le patin passe sur un obstacle. Il est donc nécessaire de prévoir une structure dissociant les deux fonctions.However, this elastic steering system does not act as a shock absorber and suspension when the skate passes over an obstacle. It is therefore necessary to provide a structure dissociating the two functions.

L'objet de l'invention est de remédier à cet inconvénient par l'introduction d'un système de suspension au niveau des essieux d'un patin, lesquels seront rendus mobiles. Le but du système de suspension est, d'une part, d'éviter au patin à roulettes, dans la plus large mesure possible, les chocs et trépidations provenant des inégalités de la surface de patinage et, d'autre part, d'assurer au patineur le confort maximum lors de son patinage.The object of the invention is to remedy this drawback by introducing a suspension system at the axles of a skate, which will be made mobile. The purpose of the suspension system is, on the one hand, to avoid the roller skate, to the greatest extent possible, shocks and vibrations from the unevenness of the skating surface and, on the other hand, to ensure maximum comfort for the skater when skating.

La présente invention, telle qu'elle est présentée selon les termes de la revendication 1,s'applique à un patin à roulettes du type comportant, une chaussure fixée sur une semelle solidaire d'une platine et comportant un frein fixé à l'avant de la platine et comportant des trains de roulement avant et arrière équipés de deux roues, d'un système de direction des roues et d'un essieu.The present invention, as presented according to the terms of claim 1, applies to a roller skate of the type comprising, a shoe fixed on a sole secured to a plate and comprising a brake fixed at the front of the plate and comprising front and rear undercarriages equipped with two wheels, a wheel steering system and an axle.

Afin de remédier aux inconvénients cités plus haut, l'invention consiste essentiellement à prévoir des essieux mobiles avant et arrière, munis d'un système de suspension, celui-ci étant fixé d'une part, dans la partie centrale de l'essieu mobile, au droit de l'axe des roues et d'autre part, est guidé par un canon de centrage placé dans la platine ; ces essieux mobiles sont aussi équipés d'un système de direction des roues, fixé à une extrémité dans la platine par des moyens de pivotement tandis que l'autre extrémité est solidaire du plateau d'orientation de l'essieu mobile par des moyens élastiques.In order to remedy the drawbacks mentioned above, the invention essentially consists in providing movable front and rear axles, provided with a suspension system, this being fixed on the one hand, in the central part of the movable axle , in line with the wheel axle and on the other hand, is guided by a centering barrel placed in the plate; these mobile axles are also equipped with a wheel steering system, fixed at one end in the plate by pivoting means while the other end is secured to the orientation plate of the mobile axle by elastic means.

L'invention est exposée ci-après plus en détail, à l'aide de dessins représentant seulement un mode d'exécution.

  • La figure 1 représente, vue de face et à échelle réduite, le patin selon l'invention.
  • la figure 2 représente, à l'échelle 1, en détail la partie constituant le train arrière du patin, selon une coupe partielle suivant l'axe longitudinal.
  • La figure 3 représente, à l'échelle 1, en détail, la partie intéressante du système de direction du train avant, selon une coupe partielle transversale, suivant AA.
The invention is set out below in more detail, with the aid of drawings representing only one embodiment.
  • Figure 1 shows, front view and on a reduced scale, the shoe according to the invention.
  • 2 shows, in scale 1, in detail the part constituting the rear axle of the skate, in a partial section along the longitudinal axis.
  • Figure 3 shows, on scale 1, in detail, the interesting part of the front axle steering system, according to a partial transverse section, along AA.

Le patin à roulettes, représenté sur la figure 1, comporte, une chaussure (1) fixée sur une semelle (2), solidaire d'une platine (3) et comportant un frein ou tampon (4), fixé à l'avant de la platine et comporte des trains avant (5) et arrière (5ʹ) de roulement, équipés de deux roues (6 ou 6ʹ), d'un système de direction (7 et 7ʹ) des roues et d'un essieu mobile (8 et 8ʹ).The roller skate, shown in FIG. 1, comprises a shoe (1) fixed on a sole (2), integral with a plate (3) and comprising a brake or buffer (4), fixed in front of the plate and comprises front (5) and rear (5ʹ) undercarriages, equipped with two wheels (6 or 6ʹ), a steering system (7 and 7ʹ) of the wheels and a movable axle (8 and 8ʹ).

Le train arrière représenté sur la figure 2 montre bien un essieu mobile (8ʹ), muni d'un système de suspension (9ʹ), celui-ci étant fixé d'une part, dans la partie centrale (10 ʹ) de l'essieu mobile, au droit de l'axe des roues (6ʹ) et d'autre part, est guidé par un canon de centrage (17) placé dans la platine (3), l'essieu mobile (8 ʹ) est équipé d'un système de direction (7 ʹ), fixé à une extrémité de la platine par des moyens de pivotement (11ʹ), tandis que l'autre extrémité est solidaire du plateau d'orientation (12 ʹ) par des moyens élastiques constitués de deux rondelles en caoutchouc (13 ou 13ʹ).The rear axle shown in FIG. 2 clearly shows a movable axle (8ʹ), provided with a suspension system (9ʹ), this being fixed on the one hand, in the central part (10 ʹ) of the axle mobile, in line with the wheel axle (6ʹ) and on the other hand, is guided by a centering barrel (17) placed in the plate (3), the mobile axle (8 ʹ) is equipped with a steering system (7 ʹ), fixed to one end of the plate by pivoting means (11ʹ), while the other end is secured to the orientation plate (12 ʹ) by elastic means consisting of two washers in rubber (13 or 13ʹ).

Le système de suspension du train avant est du même principe que celui du train arrière, représenté en figure 2.The suspension system of the front axle is of the same principle as that of the rear axle, shown in Figure 2.

Le système de suspension est constitué d'un ressort (15) ainsi que d'un doigt de centrage (34), lequel, par une extrémité, est vissé dans la partie centrale (10ʹ) de l'essieu mobile (8ʹ), tandis que l'autre extrémité se prolonge par une tige (16), guidée par l'intérieur du canon de centrage (17), alors que le ressort est guidé par le haut grâce ou diamètre de ce canon.The suspension system consists of a spring (15) as well as a centering finger (34), which, by one end, is screwed into the central part (10ʹ) of the movable axle (8ʹ), while that the other end is extended by a rod (16), guided by the interior of the centering barrel (17), while the spring is guided by the top thanks or diameter of this barrel.

Le ressort (15, est choisi selon sa raideur, en fonction du poids de l'utilisateur du patin.The spring (15) is chosen according to its stiffness, depending on the weight of the skate user.

Le canon de centrage (17) du système de suspension (9ʹ) débouche vers le bas dans une cavité (30) et est traversé par un alésage (31), de forme ablong, qui se prolonge dans la semelle (2). La largeur de l'alésage oblong (31) est sensiblement équivalente au diamètre de la tige (16).The centering barrel (17) of the suspension system (9ʹ) opens down into a cavity (30) and is crossed by a bore (31), of an ablong shape, which extends into the sole (2). The width of the oblong bore (31) is substantially equivalent to the diameter of the rod (16).

Le canon de centrage est constitué d'un matériau auto-lubrifiant afin de permettre à la tige (16) du doigt de centrage (34) de coulisser librement dans l'alésage oblong (31) du canon.The centering barrel is made of a self-lubricating material in order to allow the rod (16) of the centering finger (34) to slide freely in the oblong bore (31) of the barrel.

Le principe de fonctionnement du système de suspension est le suivant : Lorsque les roues arrières (6ʹ) du patin rencontrent un obstacle quelconque, elles auront tendance à se déplacer vers le haut et vers l'arrière du patin afin de solliciter le système de suspension (9ʹ). Ce mouvement vertical des roues entrainera un mouvement de pivotement de l'essieu mobile (8ʹ) par rapport à l'axe de pivotement (11). En se rapprochant de la platine (3), l'essieu mobile met sous contrainte le système de suspension (9ʹ). Le ressort (15) sera écrasé et jouera le rôle d'amortisseur. La tige (16) du doigt de centrage (34) pénétre dans l'alésage (31) du canon de centrage (17).The operating principle of the suspension system is as follows: When the rear wheels (6ʹ) of the skate encounter any obstacle, they will tend to move up and towards the rear of the skate in order to stress the suspension system ( 9ʹ). This vertical movement of the wheels will cause a pivoting movement of the movable axle (8ʹ) relative to the pivot axis (11). Approaching the plate (3), the movable axle puts stress on the suspension system (9ʹ). The spring (15) will be crushed and will act as a shock absorber. The rod (16) of the centering finger (34) penetrates into the bore (31) of the centering barrel (17).

Dans le train arrière (5ʹ), le système de direction (7ʹ) des roues est disposé devant le système de suspension.In the rear axle (5ʹ), the steering system (7ʹ) of the wheels is arranged in front of the suspension system.

Selon l'invention, l'essieu mobile arrière (8ʹ) comporte un système de direction (7ʹ) des roues dont l'extrèmité supérieure, solidaire de la platine (3) est constituée d'un axe de pivotement (11ʹ) et d'un pivot (18), de forme cylindrique, introduit dans une cavité (32) de la platine (3), les surfaces parallèles extrémes du pivot étant en contact étroit avec les surfaces correspondantes de cette cavité (32).According to the invention, the rear movable axle (8ʹ) comprises a steering system (7ʹ) of the wheels whose upper end, integral with the plate (3) consists of a pivot axis (11ʹ) and a pivot (18), of cylindrical shape, introduced into a cavity (32) of the plate (3), the parallel end surfaces of the pivot being in close contact with the corresponding surfaces of this cavity (32).

Il y a donc pivotement du système de direction (7ʹ) par rapport au pivot (18). Le système de direction comporte un bras articulé (21), deux rondelles élastiques (13ʹ) et un contre-écrou (14ʹ).There is therefore pivoting of the steering system (7ʹ) relative to the pivot (18). The steering system comprises an articulated arm (21), two elastic washers (13ʹ) and a lock nut (14ʹ).

Après amortissement du choc, le système de direction retourne à sa position normale. Un tampon (19) est prévu pour amortir le retour du bras articulé (21ʹ) contre une pièce rapportée (20). Cette pièce rapportée sur la partie inférieure de la platine (3) est munie, à ses deux extrémités, d'un tempon (19) qui amortit le choc après retour du bras articulé (21ʹ ou 21).After shock absorption, the steering system returns to its normal position. A pad (19) is provided to dampen the return of the articulated arm (21ʹ) against an insert (20). This insert on the lower part of the plate (3) is provided, at its two ends, with a bolt (19) which absorbs the shock after return of the articulated arm (21ʹ or 21).

Le train avant représenté sur la figure 3 montre le système de direction (7) selon une coupe partielle AA. Sur cette figure, n'est pas représenté le système de suspension qui est de même conception que pour le train arrière du patin (voir figure 2).The front axle shown in Figure 3 shows the steering system (7) in a partial section AA. In this figure, the suspension system is not shown, which is of the same design as for the rear undercarriage of the skate (see Figure 2).

Dans le train avant (5), le système de direction (7) des roues est disposé derrière le système de suspension (voir figure 1).In the front axle (5), the steering system (7) of the wheels is arranged behind the suspension system (see Figure 1).

Selon l'invention, l'essieu mobile avant (8) comporte un système de direction (7) des roues dont la partie supérieure, solidaire de la platine (3), est constituée de deux axes de pivotement (25), d'une chape (22), en forme de " U ", dont les deux ailes parallèles sont en contact étroit avec les surfaces respectives extérieures de la platine, ces deux ailes de la chape étant munies de deux ouvertures oblongues (33) qui, en relation avec les deux axes (25), assurent un mouvement de débattement vertical du système de direction.According to the invention, the front movable axle (8) comprises a steering system (7) for the wheels, the upper part of which, integral with the plate (3), consists of two pivot axes (25), of a yoke (22), in the shape of a "U", the two parallel wings of which are in close contact with the respective external surfaces of the plate, these two wings of the yoke being provided with two oblong openings (33) which, in relation to the two axes (25), provide a vertical movement movement of the steering system.

Le principe de fonctionnement du système de suspension avant est le suivant : Lorsquelles roues avant (6) du patin rencontrent un obstacle quelconque, elles ont tendance à se déplacer vers le haut, afin de solliciter le système de suspension (9). Le déplacement des roues, et donc, de l'essieu mobile avant se fait vers le haut mais aussi vers l'arrière du patin. Le système de suspension (9) sera sollicité normalement, par contre, pour obtenir un léger mouvement de pivotement de l'essieu mobile (8) par rapport au moyen de pivotement (11), il est nécessaire d'avoir un système de direction (7) dont l'extrémité supérieure, solidaire de la platine (3), soit équipée d'un moyen de pivotement flexible. Pour ce faire, la partie supérieure du système de direction est équipée d'une chape (22), en forme de " U ", dont les deux ailes parallèles, entourant la platine (3), sont pourvues de deux ouvertures oblongues (33). Ces ouvertures sont traversées par deux axes (25), afin de fournir un moyen de pivotement flexible du système de direction.The operating principle of the front suspension system is as follows: When the front wheels (6) of the skate encounter any obstacle, they tend to move upwards, in order to stress the suspension system (9). The movement of the wheels, and therefore of the front mobile axle, is done upwards but also backwards. The suspension system (9) will normally be stressed, however, to obtain a slight pivoting movement of the movable axle (8) relative to the pivoting means (11), it is necessary to have a steering system ( 7) whose upper end, integral with the plate (3), is equipped with a flexible pivoting means. To do this, the upper part of the steering system is equipped with a yoke (22), in the shape of a "U", the two parallel wings of which, surrounding the plate (3), are provided with two oblong openings (33). . These openings are crossed by two axes (25), in order to provide a flexible means of pivoting of the steering system.

Un ressort de rappel (27) permet le retour en position de la chape (22) après le passage de l'obstacle.A return spring (27) allows the screed (22) to return to position after the obstacle has passed.

Au cours de la description, nous avons présenté un train avant et un train arrière d'un patin à roulettes. Pour les deux trains de roulement, le système de suspension est de même conception. Les systèmes de direction sont différents de part leur emplacement, au niveau des essieux mobiles.During the description, we have presented a front axle and a rear axle of a roller skate. For the two undercarriages, the suspension system is of the same design. The steering systems are different because of their location, at the level of the mobile axles.

Les applications du système de suspension et des systèmes de direction se trouvent dans l'amélioration des techniques de suspension des patins à roulettes.Applications of the suspension system and steering systems are found in the improvement of roller skate suspension techniques.

Claims (6)

  1. A roller skate of the type having a shoe (1) fixed onto a sole (2) secured to a base (3), having front and rear under-carriages (5, 5') each equipped with a pair of wheels (6, 6'), a pivoting system (7, 7') for each pair of wheels and axles (8, 8') for supporting each pair of wheels, characterized in that :
    - each pivoting axle (8, 8') is provided with a suspension system (9, 9') secured at one end thereof on a central part (10, 10') of the pivoting axle, right to the axis of the wheels (6,6') and the opposite end thereof being guided by a centering barrel (17) located inside the base (3), said suspension system (9, 9') being composed of a spring (15) through which passes a centering finder (34) screwed at the lower end thereof in the central part (10,10') of the pivoting axle (8,8') while the upper end thereof is extended by a pin (16) guided by the inner surface of the centering barrel (17) which is cut through by a bore (31) of oblong section, said spring (15) bearing at the lower end thereof onto the base of the centering finger (34) and at the upper end thereof being guided by the outer surface of the centering barrel (17) and bearing into a cavity (30) of the base (3);
    - each pivoting axle (8,8') is provided with a pivoting system (7,7') secured at an end thereof to the base (3) by pivot means (11,11') while the other end thereof is secured to an integral arm (12,12') of the pivoting axle which further provides a junction between the suspension system (9,9') and the pivoting system (7,7'), said pivoting system (7,7') being composed of an articulated arm (21, 21') upon which two resilient means (13,13') are strung, each of them bearing onto a face of the integral arm (12, 12'), the whole of them being secured by counter-nut (14,14');
    - a bumper (4) acting as a brake is secured to the front part of the base.
  2. A roller skate according to claim 1, characterized in that the rear pivoting axle (8') is provided with a pivoting system (7') for the wheels, the upper end thereof, secured to the base (3), is composed of a pivoting axis (11') and a cylindrically shaped pivot hub (18) disposed in a cavity (32) inside the base (3), the parallel external faces of the pivot hub being in close contact with corresponding surfaces of said cavity (32).
  3. A roller skate according to claim 1, characterized in that tile front pivoting axle (8) comprises a pivoting system (7) for the wheels, the upper end thereof, secured to the base (3) is composed of a pair of pivot pins (25), a U-shaped cover (22), having two parallel flanges in close contact with the corresponding lateral faces of the base, said pair of flanges of the cover (22) being provided with two oblong openings (33) which, in relation to the two pivot pins (25), allow a vertical clearence movement for the pivoting system (7).
  4. A roller skate according to claim 1, characterized in that the centering barrel (17) is made of a self-lubricating material.
  5. A roller skate according to claim 1, characterized in that the stiffness of spring (15) forming part of the front and rear suspensions, is selected in accordance with the weight of the user of the skate.
  6. A roller skate according to claim 1, characterized in that a gusset (20), fixed onto the bottom face of the base (3) is provided at both ends with buffers (19) in order to damp shock by the articulated arm (21 or 21') when the latter is returning to normal position.
EP87402764A 1987-02-03 1987-12-04 Roller skate comprising a suspension system Expired - Lifetime EP0279131B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8701241 1987-02-03
FR8701241A FR2610208B1 (en) 1987-02-03 1987-02-03 SKATE SKATE HAVING SUSPENSION SYSTEMS

Publications (2)

Publication Number Publication Date
EP0279131A1 EP0279131A1 (en) 1988-08-24
EP0279131B1 true EP0279131B1 (en) 1991-03-06

Family

ID=9347508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402764A Expired - Lifetime EP0279131B1 (en) 1987-02-03 1987-12-04 Roller skate comprising a suspension system

Country Status (5)

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US (1) US4915399A (en)
EP (1) EP0279131B1 (en)
DE (1) DE3768484D1 (en)
ES (1) ES2022425B3 (en)
FR (3) FR2610208B1 (en)

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FR2651147A1 (en) * 1989-08-28 1991-03-01 Traore Cyril Endless chains (caterpillar tracks) with independent suspension elements for sports and transport equipment items
US5029882A (en) * 1990-01-05 1991-07-09 Marandel Jean Bernard Roller skates
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FR2690352B1 (en) * 1992-04-27 1994-06-10 Marandel Jean Bernard WHEEL SKATE WITH INCLINED PLATE.
US5346231A (en) * 1993-01-27 1994-09-13 Diana Ho Skate construction with pre-set buffering, shock-absorbing and the topography compliance functions
US5330208A (en) * 1993-03-22 1994-07-19 Charron Francois E Shock absorbent in-line roller skate
US5575489A (en) * 1993-03-22 1996-11-19 Oyen; Gerald O. S. Shock absorbent in-line roller skate
US5951027A (en) * 1993-03-22 1999-09-14 Oyen; Gerald O. S. Shock absorbent in-line roller skate with wheel brakes-lock
IT1273899B (en) * 1994-06-09 1997-07-11 Nordica Spa IMPROVED COMFORT ROLLER SKATE STRUCTURE
US5503413A (en) * 1994-10-31 1996-04-02 Pavel Belogour In-line roller skates with suspension
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US7478803B2 (en) 2000-11-17 2009-01-20 Elmer C. Lee Compact shock absorption, vibration, isolation, and suspension device
KR20040014019A (en) * 2002-08-09 2004-02-14 강성광 In line skate
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TW201416111A (en) * 2012-10-26 2014-05-01 zhen-hua Huang Drift skate with independent cylinder shock-absorbing structure
CN102921165B (en) * 2012-11-26 2014-07-16 上海电机学院 Serviceable glider
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Also Published As

Publication number Publication date
FR2646613A2 (en) 1990-11-09
FR2610208A1 (en) 1988-08-05
US4915399A (en) 1990-04-10
FR2633524A2 (en) 1990-01-05
FR2610208B1 (en) 1989-04-07
EP0279131A1 (en) 1988-08-24
FR2633524B2 (en) 1991-02-15
FR2646613B2 (en) 1994-06-10
ES2022425B3 (en) 1991-12-01
DE3768484D1 (en) 1991-04-11

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