EP0099844B1 - Device to simulate skiing on snow - Google Patents

Device to simulate skiing on snow Download PDF

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Publication number
EP0099844B1
EP0099844B1 EP83430025A EP83430025A EP0099844B1 EP 0099844 B1 EP0099844 B1 EP 0099844B1 EP 83430025 A EP83430025 A EP 83430025A EP 83430025 A EP83430025 A EP 83430025A EP 0099844 B1 EP0099844 B1 EP 0099844B1
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EP
European Patent Office
Prior art keywords
wheels
frame
brake pedal
skis
accordance
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EP83430025A
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German (de)
French (fr)
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EP0099844A1 (en
Inventor
Guy Fossat
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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
    • A63C5/00—Skis or snowboards
    • A63C5/035—Skis or snowboards with ground engaging rolls or belts

Definitions

  • the invention relates to a wheeled ski, simulating a snow ski, comprising a frame supported by a front wheel axle and a rear wheel axle, in which a rolling movement caused by the user on the frame causes a change of direction of a train of wheels.
  • the snow ski simulation device allows beginners of all ages to adapt safely to cross-country and downhill skiing.
  • skates and skates currently used are in no way comparable in their behavior with various existing snow skis.
  • wheeled skis corresponding to the preamble of claim 1 (Document US-A-3,545,779) designed to carry out a series of turns during a descent.
  • a lateral tilting movement of the central part pivoting along a longitudinal axis causes a change of orientation of the front axle and the rear axle of the wheels which triggers the turn.
  • a safety binding keeps the shoe flat without the possibility of lifting the heel.
  • the wheels are not protected and to avoid contact between the two skis, the movements must be strictly symmetrical in order to constantly keep the skis parallel and slightly apart. This practice requires great precision, which is difficult to obtain with beginners who are often inconsistent.
  • the blocking of the heel decreases the amplitude of the movement in displacement in alternating steps.
  • the wheeled ski according to the invention is characterized in that the eccentric front axle, of integral wheels is fixedly attached to the frame without the possibility of changing direction, while the rear wheel axle is articulated by a vertical axis on this frame and in that the frame, in its central part, comprises a set of two pedals, one of brake, the other of direction, the latter supporting the foot of the user and being itself supported with possibility lateral pivoting by the brake pedal, which is itself mounted on a horizontal and transverse axis secured to the frame, these pedals acting according to their respective function on the rear axle of the wheels by means of appropriate mechanisms.
  • the invention as characterized in the claims solves the problem of creating a device allowing the adaptation of beginners of all ages to the practice of cross-country skiing and alpine skiing.
  • the result is a complete, attractive physical preparation, with beneficial repercussions in terms of accident prevention, greater motivation to orientate oneself towards this sporting activity, and easier to follow the lessons of the ski school. It can be practiced indoors, on sports grounds, with the use of an elevated runway or on an equipped track equipped with a ski lift.
  • the eccentric front axle significantly increases the surface of the lift polygon, making it possible to combat centrifugal force during the turn and great stability during use in mono.
  • the eccentric front axle, of integral wheels ensures a progressive deceleration during each turn as a result of a slight skidding of the wheels, due to the difference in length of the radius of the interior and exterior curve. Therefore, it is possible to control the speed as it occurs during the skidding of skis on snow when driving turns.
  • micrometric adjustment of the rectilinear trajectory of each ski is carried out very easily by barrels, without taking off the skis.
  • the safety brake the activation of which requires the balanced recoil position beforehand, makes it possible, if necessary, to stop the chain of turns and to continue the movement in direct track by occupying only one side of the track.
  • the wheeled ski according to the invention allows beginners and particularly the blind to evolve on a varied terrain in order to adapt to the practice of cross-country and alpine skiing. It can be used for hiking or with the help of ski lifts.
  • It essentially comprises a frame (C) and a double control pedal comprising a brake pedal element (F) and a steering pedal element (D) supported by said element (F).
  • the frame (C) can be made of metal, fiberglass or any other light, flexible, resistant material. It comprises vertical side parts (6) covered with a smooth material reducing friction and protecting the wheels (7. 7A) which, thus, cannot catch on during the movement in alternating steps.
  • the outer rear part of the frame is notched so as not to hinder the pivoting of the wheels outside (fig.3).
  • the wheels can advantageously be fitted with tires of all types.
  • the skier's center of gravity is lowered by fixing the shoes between the wheels, and as close as possible to the ground.
  • wheeled skiing is relatively long, but the size should be compared to that of snow skis and not that of skates or skates whose use is completely different.
  • the rear axle (4) comprises two integral wheels (7A), bolted to a ball bearing hub (10) or any other system on which a brake disc (11) is fixed, the assembly being supported by a pivoting fork (12) itself mounted on the rear of the frame with, if necessary, assistance means (not shown).
  • the eccentric front axle (2) comprises two integral wheels (7) bolted to a hub (10) on which are fixed two toothed wheels (13) on which two pawls (14) act. Any other freewheel system preventing the ski from rolling back can be used.
  • a brake is arranged between the rear wheels, to act either directly on the central part of the hub, or on the vertical disc (11) provided for this purpose.
  • the wheels being integral, braking takes place simultaneously on the two rear wheels.
  • the lifting of the brake pedal element causes the movement of a right angle bent lever (18 - 19), the part (19) of which carries a cam (20).
  • This cam is intended, on the one hand, to push a piece in the shape of a "U” (21) which, by means of axes (22), brings the jaw (16) closer to the disc, and, on the other hand hand, by resting on the part (21), pushing the jaw (16A) also towards the disc.
  • Two return springs (23) return the jaws (16 - 16A) to their initial position by sliding guides (24) on an axis (25) the ends of which are held by an inner nut (26) and an outer nut (27 ).
  • the brake pedal element (F) which supports the steering pedal element (D) pivots about an axis (28) located slightly in front of the vertical passing through the heel. The position of this axis is adjustable according to the size of the skier.
  • the brake pedal element (F) - steering pedal element (D) assembly lifts at the front; the part located behind the axis of rotation (28) descends, pulling on a flexible transmission (29) fixed at (30) on the element (F), which transmission acts on the brake lever (18 -19) .
  • This last lever, in contact with the cam (20) causes the jaws (16 16A) to come together which slow down the rotation of the disc (11) located between the rear wheels (7A).
  • the rear part of the pedal approaches the ground. It includes a large rubber pad (31) or other similar material which can, in the event of a break in the flexible transmission, press the ground directly and thereby act as an emergency brake.
  • the brake can be removed and replaced by direct braking on the ground.
  • the support on one side of the skate causes the change of direction.
  • the user must seek the elevation on one side of the pedal by moving the two knees together on the opposite side. This roll movement is identical to that performed on snow for a series of turns.
  • An axis (34) on which a double transmission (34A-34B) is fixed moves to the right in this case, causing the operation of the elements of the transmission which act on the pivoting fork (12) and cause its rotation.
  • the flexible double transmission (34A - 34B) includes adjusting barrels (36) which can be used without taking off the shoes in order to obtain a perfectly rectilinear movement (Fig. 13).
  • the pivoting mechanism of the fork is locked when the ski is back, body weight on the front ski.
  • the center of gravity is during this phase on the front part of the binding of the rear ski, the heel being raised: the rear part of the steering pedal lifts, a cam (35) engages in the cylindrical guides (37) and blocks the entire steering mechanism, the ski moves in a straight line.
  • the cam (35) is released and can pass below the guides (37) to perform the movements lateral allowing turns.
  • the body weight is distributed over the entire surface of the foot.
  • the steering pedal presses flat on its guides (32) which pass through the brake pedal element (F) through holes (39) to allow rotation of the steering pedal element (D) on the tubes ( 33).
  • an upper pulley (46) mounted by a pin (47) on the upright (45) leaves the center and tends to move laterally under the action of the elastic element (40) the tension of which is adjustable at its fixing point (41), improving the operation of the steering.
  • a window (48) is formed in the flange (42) to allow the movement of the axis (47) through this flange and the upper pulley (46) is likely to meet on the flange (42) an inclined plane ( 49) in two parts leaving between them a central part.
  • a window arrangement (48A) is also adopted to allow the movement of the transmission axis (34) through a flange (42A) disposed opposite the flange (42) on the '' brake pedal element (F).
  • an arrangement with a lower pulley (43A) mounted on an upright (45A) of the steering pedal element (D) and associated with an elastic or spring (40A) fixed at (41A) on a flange (42A) of the brake pedal element (F) is provided at this end of the steering pedal element (D) and brake pedal element (F) assembly.
  • the steering pedal element (D) is suspended in a cradle on the brake pedal element (F).
  • a device (50) keeps the brake pedal element (F) in a horizontal position.
  • This mechanism is fixed by two bolts (51) on the part (2) of the frame. It receives and blocks an axis (52) fixed on the flange (42) of the brake pedal element (F) when the skier is in the descent position.
  • This lever mechanism (53) for locking a pivot axis (54) is adjustable by tensioning a spring (55) connecting the levers, according to the weight of the ski.
  • the axis (52) lifts, draws aside the levers (53) which blocked it, and the brake pedal element (F) is released.
  • the shoe must transmit all movements to the braking and steering mechanism. This movement is lateral or anteroposterior.
  • the flat foot In the descent position, the flat foot is locked at the heel by a guide (57) preventing any lateral movement.
  • Poles of snow skis whose point is provided with a rubberized or metallic tip, depending on the state of the ground, can be used normally.
  • the wheeled ski according to the invention simulating snow skis, makes it possible to move in a straight line, go up, down, brake, turn using the movements of the lower joints of the individual, as happens on snow.
  • the wheeled ski according to the invention offers great security.
  • the brake pedal lifts and the brake comes into action; the skier moves forward while the ski is blocked. As a result, the balance is restored and the fall back is avoided.

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  • Motorcycle And Bicycle Frame (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Traffic Control Systems (AREA)
  • Braking Arrangements (AREA)

Abstract

1. Wheeled skis, simulating snow skis, comprising a frame (C) maintained by a front axle (2) with a pair of wheels (7) and a rear axle (4) and wheels (7A) in which a rocking motion on the part of the skier against the frame (C) causes the rear wheels to change direction, as follows : - The front axle (2) has fixed off-set wheels (7) and is fixed to the frame such that change in direction is not possible whereas the rear axle (4) and wheels (7A) are articulated about a vertical axis on the frame, - The central part (3) of the frame (C) has two pedals, one is a brake (F), the other for steering (D), the latter holding the skiers' foot and itself being held by the brake pedal (F), and able to pivot laterally. The brake pedal is mounted on a horizontal, transversal axle (28) fixed to the frame (C). These pedals operate, according to their function, on the rear axle (4) and wheels (7A), using appropriate mechanisms.

Description

L'invention concerne un ski à roues, simulant un ski à neige, comportant un cadre supporté par un train avant de roues et un train arrière de roues, dans lequel un mouvement de roulis provoqué par l'utilisateur sur le cadre provoque un changement de direction d'un train de roues. Le dispositif de simulation des skis à neige permet l'adaptation des débutants de tous ages a la pratique du ski de fond et alpin en toute sécurite.The invention relates to a wheeled ski, simulating a snow ski, comprising a frame supported by a front wheel axle and a rear wheel axle, in which a rolling movement caused by the user on the frame causes a change of direction of a train of wheels. The snow ski simulation device allows beginners of all ages to adapt safely to cross-country and downhill skiing.

Les patins et les skates utilisés actuellement ne sont nullement comparables dans leur comportement avec divers skis à neige existants. On connait déjà des skis à roues correspondant au préambule de la revendication 1 (Document US-A-3 545 779) conçus pour réaliser un enchaînement de virages au cours d'une descente. Un mouvement d'inclinaison latérale de la partie centrale pivotant selon un axe longitudinal provoque un changement d'orientation du train avant et du train arrière des roues qui déclenche le virage.The skates and skates currently used are in no way comparable in their behavior with various existing snow skis. There are already known wheeled skis corresponding to the preamble of claim 1 (Document US-A-3,545,779) designed to carry out a series of turns during a descent. A lateral tilting movement of the central part pivoting along a longitudinal axis causes a change of orientation of the front axle and the rear axle of the wheels which triggers the turn.

Une fixation de sécurité maintient la chaussure à plat sans possibilité de soulever le talon.A safety binding keeps the shoe flat without the possibility of lifting the heel.

Les roues ne sont pas protégées et pour éviter le contact des deux skis, les mouvements doivent être rigoureusement symétriques afin de maintenir constamment les skis paralléles et légèrement écartés. Cette pratique nécessite une grande précision difficile à obtenir avec des débutants souvent incoordonnés. Le blocage du talon diminue l'amplitude du mouvement dans le déplacement en pas alternatif.The wheels are not protected and to avoid contact between the two skis, the movements must be strictly symmetrical in order to constantly keep the skis parallel and slightly apart. This practice requires great precision, which is difficult to obtain with beginners who are often inconsistent. The blocking of the heel decreases the amplitude of the movement in displacement in alternating steps.

La partie centrale pivotant autour d'un axe longitudinal, il en résulte un équilibre latéral instable qui risque de compromettre le déplacement rectiligne au cours du pas alternatif.The central part pivoting around a longitudinal axis, this results in an unstable lateral balance which risks compromising the rectilinear movement during the alternating step.

L'utilisation en mono n'a pas été prévue, il est donc impossible de suivre une progression pédagogique d'exercices d'adaptation, l'engin pouvant basculer vers l'extérieur compte tenu de la surface insuffisante du polvgone de sustentation.The use in mono was not envisaged, it is therefore impossible to follow a pedagogical progression of exercises of adaptation, the machine being able to rock outwards taking into account the insufficient surface of the polvgone of levitation.

Il n'y a pas de freinage de sécurité efficace pendant la descente en trace directe.There is no effective safety braking during the direct trace descent.

La présente invention a pour but de remédier à ces inconvénients. Le ski à roues selon l'invention se caractérise en ce que le train avant excentré, de roues solidaires est attaché de façon fixe au cadre sans possibilité de changement de direction, tandis que le train arrière de roues s'articule par un axe vertical sur ce cadre et en ce que le cadre, dans sa partie centrale, comporte un ensemble de deux pédales, l'une de frein, l'autre de direction, cette dernière supportant le pied de l'utilisateur et étant elle-même supporté avec possibilité de pivotements latéraux par la pédale de frein, laquelle est elle-même montée sur une axe horizontal et transversal solidaire du cadre, ces pédales agissant selon leur fonction respective sur le train arrière de roues grâce à des mécanismes appropriés. L'invention telle qu'elle est caractérisée dans les revendications, résout le problème consistant à créer un dispositif permettant l'adaptation des débutants de tous âges à la pratique du ski de fond et du ski alpin. Il en résulte une préparation physique complète, attrayante, ayant des répercussions bénéfiques en matière de prévention des accidents, une plus grande motivation pour s'orienter vers cette activité sportive, et plus de facilité pour suivre les cours de l'école de ski. Elle est praticable en salle, sur terrains de sports, avec utilisation d'une piste d'élan surélevée ou sur une piste aménagée, équipée d'un remonte- pente.The present invention aims to remedy these drawbacks. The wheeled ski according to the invention is characterized in that the eccentric front axle, of integral wheels is fixedly attached to the frame without the possibility of changing direction, while the rear wheel axle is articulated by a vertical axis on this frame and in that the frame, in its central part, comprises a set of two pedals, one of brake, the other of direction, the latter supporting the foot of the user and being itself supported with possibility lateral pivoting by the brake pedal, which is itself mounted on a horizontal and transverse axis secured to the frame, these pedals acting according to their respective function on the rear axle of the wheels by means of appropriate mechanisms. The invention as characterized in the claims solves the problem of creating a device allowing the adaptation of beginners of all ages to the practice of cross-country skiing and alpine skiing. The result is a complete, attractive physical preparation, with beneficial repercussions in terms of accident prevention, greater motivation to orientate oneself towards this sporting activity, and easier to follow the lessons of the ski school. It can be practiced indoors, on sports grounds, with the use of an elevated runway or on an equipped track equipped with a ski lift.

Les avantages obtenus grâce à cette invention consistent essentiellement en ceci que le train avant fixe du simulateur et le pivotement du train arrière seul, reproduisent fidèlement le mouvement de dérapage des talons des skis à neige.The advantages obtained thanks to this invention consist essentially in that the fixed front axle of the simulator and the pivoting of the rear axle alone, faithfully reproduce the skid movement of the heels of snow skis.

Le train avant excentré augmente sensiblement la surface du polygone de sustentation, permettant de lutter contre la force centrifuge au cours du virage et une grande stabilité pendant l'utilisation en mono.The eccentric front axle significantly increases the surface of the lift polygon, making it possible to combat centrifugal force during the turn and great stability during use in mono.

Le train avant excentré, de roues solidaires, assure un ralentissement progressif au cours de chaque virage par suite d'un léger dérapage des roues, dû à la différence de longueur du rayon de la courbe intérieure et extérieure. De ce fait, il est possible de contrôler la vitesse comme cela se produit pendant le dérapage des skis sur la neige dans la conduite des virages.The eccentric front axle, of integral wheels, ensures a progressive deceleration during each turn as a result of a slight skidding of the wheels, due to the difference in length of the radius of the interior and exterior curve. Therefore, it is possible to control the speed as it occurs during the skidding of skis on snow when driving turns.

Le contact permanent des parties latérales internes du cadre au cours des déplacements constitue un point de repère très efficace pour le débutant qui maintient ainsi sans difficulté, le parallélisme des skis serrés. Cette attitude correspond à celle qui est recherchée au cours des séances d'initiation sur la neige.The permanent contact of the internal lateral parts of the frame during movement constitutes a very effective benchmark for the beginner who thus maintains without difficulty, the parallelism of the tight skis. This attitude corresponds to that which is sought during initiation sessions on the snow.

La stabilité de la pédale de direction reposant à plat sur deux axes parallèles et le blocage automatique du moyen pivotant dans l'axe, assurent une grande précision du déplacement en pas alternatif.The stability of the steering pedal resting flat on two parallel axes and the automatic locking of the pivoting means in the axis, ensure high precision of the movement in alternating steps.

Le réglage micrométrique de la trajectoire rectiligne de chaque ski s'effectue très facilement par barillets, sans déchausser les skis.The micrometric adjustment of the rectilinear trajectory of each ski is carried out very easily by barrels, without taking off the skis.

Le frein de sécurité dont le déclenchement nécessite au préalable la position de recul équilibrée, permet si cela est nécessaire, d'arrêter l'enchaînement de virages et de continuer le déplacement en trace directe en occupant seulement un côté de la piste.The safety brake, the activation of which requires the balanced recoil position beforehand, makes it possible, if necessary, to stop the chain of turns and to continue the movement in direct track by occupying only one side of the track.

D'autres caractéristiques et avantages de la présente invention ressortiront de la description qui va suivre, faite en regard des dessins annexés, sur lesquels :

  • - La figure 1 est une vue en plan par le dessus d'un ski à roues droit selon l'invention, les détails de la suspension en berceau n'étant pas représentés pour la clarté du dessin.
  • - La figure 2 est une vue en élévation latérale partielle du côté intérieur du ski à roues droit selon la figure 1.
  • - La figure 3 est une vue en élévation latérale partielle du côté extérieur du ski gauche.
  • - Les figures 4 et 5 sont des vues en bout et coupe partielle du train arrière et du train avant de roues respectivement.
  • - Les figures 6 et 7 représentent respectivement en élévation latérale et en plan par le dessus, l'élément de pédale de frein.
  • - La figure 8 représente en élévation latérale l'ensemble de l'élément de pédale de frein et de l'élément de pédale de direction.
  • - Les figures 9 et 10 représentent en élévation latérale le dit ensemble des deux éléments de chaque bout respectivement.
  • - La figure 11 est une vue en plan à plus grande échelle d'un mécanisme de frein.
  • - La figure 12 est une vue en plan également à plus grande échelle d'une fourche pivotante de direction.
  • - La figure 13 est une vue de détail.
  • - Les figures 14 et 15 sont des vues en plan par le dessus et en élévation latérale respectivement d'un mécanisme de blocage.
  • - La figure 16 enfin est une vue en plan de détail.
Other characteristics and advantages of the present invention will emerge from the description which follows, given with reference to the appended drawings, in which:
  • - Figure 1 is a plan view from above of a straight wheel ski according to the invention, the details of the cradle suspension not being shown for clarity of the drawing.
  • - Figure 2 is a partial side elevation view of the interior side of the straight wheel ski according to Figure 1.
  • - Figure 3 is a side elevational view partial on the outside of the left ski.
  • - Figures 4 and 5 are end views and partial section of the rear axle and the front axle assembly respectively.
  • - Figures 6 and 7 show respectively in side elevation and in plan from above, the brake pedal element.
  • - Figure 8 shows in side elevation the whole of the brake pedal element and the steering pedal element.
  • - Figures 9 and 10 show in side elevation the said assembly of the two elements of each end respectively.
  • - Figure 11 is a plan view on a larger scale of a brake mechanism.
  • - Figure 12 is a plan view also on a larger scale of a pivoting steering fork.
  • - Figure 13 is a detail view.
  • - Figures 14 and 15 are plan views from above and in side elevation respectively of a locking mechanism.
  • - Figure 16 finally is a detail plan view.

Le ski à roues selon l'invention permet aux débutants et particulièrement aux aveugles d'évoluer sur un relief varié afin de s'adapter à la pratique du ski de fond et alpin. Il peut être utilisé pour la randonnée ou avec l'aide de remontées mécaniques.The wheeled ski according to the invention allows beginners and particularly the blind to evolve on a varied terrain in order to adapt to the practice of cross-country and alpine skiing. It can be used for hiking or with the help of ski lifts.

Il comprend essentiellement un cadre (C) et une pédale de commande double comprenant un élément de pédale de frein (F) et un élément de pédale de direction (D) supporté par le dit élément (F).It essentially comprises a frame (C) and a double control pedal comprising a brake pedal element (F) and a steering pedal element (D) supported by said element (F).

Le cadre (C) peut être réalisé en métal, en fibre de verre ou tout autre matériau léger, flexible, résistant. Il comprend des parties latérales (6) verticales recouvertes d'un matériau lisse réduisant le frottement et protégeant les roues (7. 7A) qui, ainsi, ne peuvent pas s'accrocher au cours du déplacement en pas alternatif.The frame (C) can be made of metal, fiberglass or any other light, flexible, resistant material. It comprises vertical side parts (6) covered with a smooth material reducing friction and protecting the wheels (7. 7A) which, thus, cannot catch on during the movement in alternating steps.

En position normale de trace directe, pieds écartés de quelques centimètres, les deux parties latérales (6) sont en contact et les deux skis forment un bloc, habituant l'utilisateur à la position skis serrés.In the normal direct trace position, feet apart by a few centimeters, the two lateral parts (6) are in contact and the two skis form a block, accustoming the user to the tight skis position.

La partie arrière externe du cadre est échancrée afin de ne pas gêner le pivotement des roues à l'extérieur (fig.3).The outer rear part of the frame is notched so as not to hinder the pivoting of the wheels outside (fig.3).

Pour amortir les vibrations, améliorer la tenue de route et le confort les roues peuvent avantageusement être équipées de pneumatiques de tous types.To dampen vibrations, improve handling and comfort, the wheels can advantageously be fitted with tires of all types.

Compte-tenu du diamètre des roues et de la recherche d'un meilleur équilibre, le centre de gravité du skieur est abaissé en fixant les chaussures entre les roues, et le plus près possible du sol.Taking into account the diameter of the wheels and the search for a better balance, the skier's center of gravity is lowered by fixing the shoes between the wheels, and as close as possible to the ground.

De ce fait, le ski à roues est relativement long mais la taille se doit d'être comparée à celle des skis à neige et non à celle des patins ou skates dont l'usage est totalement différent.As a result, wheeled skiing is relatively long, but the size should be compared to that of snow skis and not that of skates or skates whose use is completely different.

Le train arrière (4) comprend deux roues (7A) solidaires, boulonnées sur un moyeu à roulement à bille (10) ou tout autre système sur lequel est fixé un disque de freinage (11), l'ensemble étant supporté par une fourche pivotante (12) montée elle-même sur l'arrière du cadre avec, au besoin, des moyens d'assistance (non représentés).The rear axle (4) comprises two integral wheels (7A), bolted to a ball bearing hub (10) or any other system on which a brake disc (11) is fixed, the assembly being supported by a pivoting fork (12) itself mounted on the rear of the frame with, if necessary, assistance means (not shown).

Le train avant (2) excentré, comprend deux roues (7) solidaires boulonnées sur un moyeu (10) sur lequel sont fixées deux roues dentées (13) sur lesquelles agissent deux cliquets (14). Tout autre système à roue libre empêchant le recul du ski peut être utilisé.The eccentric front axle (2) comprises two integral wheels (7) bolted to a hub (10) on which are fixed two toothed wheels (13) on which two pawls (14) act. Any other freewheel system preventing the ski from rolling back can be used.

Un frein est disposé entre les roues arrières, pour agir, soit directement sur la partie centrale du moyeu, soit sur le disque vertical (11) prévu à cet effet.A brake is arranged between the rear wheels, to act either directly on the central part of the hub, or on the vertical disc (11) provided for this purpose.

Les roues étant solidaires, le freinage s'effectue simultanément sur les deux roues arrières.The wheels being integral, braking takes place simultaneously on the two rear wheels.

Quatre pattes de fixation (15) boulonnées sur la fourche pivotante (12) maintiennent le frein qui comprend deux mâchoires (16 - 16A) à garniture de frein (17) entre lesquelles tourne le disque (11) fixé sur le moyeu (10).Four fixing lugs (15) bolted to the swivel fork (12) hold the brake which comprises two shoes (16 - 16A) with brake lining (17) between which rotates the disc (11) fixed on the hub (10).

Le soulèvement de l'élément de pédale de frein provoque le mouvement d'un levier coudé à angle droit (18 - 19) dont la partie (19) porte une came (20). Cette came est destinée, d'une part, à pousser une pièce en forme de "U" (21) qui, par l'intermediaire d'axes (22), rapproche la mâchoire (16) du disque, et, d'autre part, en prenant appui sur la pièce (21), à pousser la mâchoire (16A) également vers le disque.The lifting of the brake pedal element causes the movement of a right angle bent lever (18 - 19), the part (19) of which carries a cam (20). This cam is intended, on the one hand, to push a piece in the shape of a "U" (21) which, by means of axes (22), brings the jaw (16) closer to the disc, and, on the other hand hand, by resting on the part (21), pushing the jaw (16A) also towards the disc.

Deux ressorts de rappel (23) ramènent les mâchoires (16 - 16A) à leur position initiale par glissement de guides (24) sur un axe (25) dont les extrémités sont maintenues par un écrou intérieur (26) et un écrou extérieur (27).Two return springs (23) return the jaws (16 - 16A) to their initial position by sliding guides (24) on an axis (25) the ends of which are held by an inner nut (26) and an outer nut (27 ).

L'élément de pédale de frein (F) qui supporte l'élément de pédale de direction (D) pivote autour d'un axe (28) situé légèrement en avant de la verticale passant par le talon. La position de cet axe est réglable en fonction de la pointure du skieur.The brake pedal element (F) which supports the steering pedal element (D) pivots about an axis (28) located slightly in front of the vertical passing through the heel. The position of this axis is adjustable according to the size of the skier.

En soulevant le bout de la chaussure et en appuyant sur le talon, l'ensemble élément de pédale de frein (F) - élément de pédale de direction (D) se soulève à l'avant; la partie située en arrière de l'axe de rotation (28) descend, tirant sur une transmission souple (29) fixée en (30) sur l'élément (F), laquelle transmission agit sur le levier de frein (18 -19). Ce dernier levier, en contact avec la came (20) provoque le rapprochement des mâchoires (16 16A) qui freinent la rotation du disque (11) situé entre les roues arrières (7A).By lifting the end of the shoe and pressing on the heel, the brake pedal element (F) - steering pedal element (D) assembly lifts at the front; the part located behind the axis of rotation (28) descends, pulling on a flexible transmission (29) fixed at (30) on the element (F), which transmission acts on the brake lever (18 -19) . This last lever, in contact with the cam (20) causes the jaws (16 16A) to come together which slow down the rotation of the disc (11) located between the rear wheels (7A).

Au cours du freinage, la partie arrière de la pédale se rapproche du sol. Elle comprend un large patin de caoutchouc (31) ou autre matériau similaire qui peut, en cas de rupture de la transmission souple, appuyer sur le sol directement et de ce fait agir en frein de secours.During braking, the rear part of the pedal approaches the ground. It includes a large rubber pad (31) or other similar material which can, in the event of a break in the flexible transmission, press the ground directly and thereby act as an emergency brake.

Dans une version très simplifiée, le frein peut être supprimé et remplacé par le freinage direct sur le sol.In a very simplified version, the brake can be removed and replaced by direct braking on the ground.

Sur les dispositifs connus actuellement, l'appui sur un côté du patin provoque le changement de direction. Conformément à la présente invention, l'utilisateur doit rechercher l'élévation d'un côté de la pédale en déplaçant les deux genoux serrés du côté opposé. Ce mouvement de roulis est identique à celui effectué sur la neige pour un enchaînement de virages.On currently known devices, the support on one side of the skate causes the change of direction. In accordance with the present invention, the user must seek the elevation on one side of the pedal by moving the two knees together on the opposite side. This roll movement is identical to that performed on snow for a series of turns.

Lorsque le skieur prend la position de descente directe, la pédale descend légèrement maintenue par des guides (32) et repose à plat sur deux tubes (33) de la pédale de frein écartés de quelques centimètres.When the skier takes the position of direct descent, the pedal descends slightly maintained by guides (32) and rests flat on two tubes (33) of the brake pedal spaced a few centimeters apart.

Lorsque le skieur veut aller vers la droite, il oriente les deux genoux vers la droite en soulevant le côté gauche des pédales, le côté droit de chaque pédale étant en appui sur le tube (33) droit correspondant.When the skier wants to go to the right, he directs both knees to the right by lifting the left side of the pedals, the right side of each pedal being supported on the corresponding right tube (33).

Un axe (34) sur lequel une transmission double (34A-34B) est fixée se déplace à droite dans ce cas, provoquant le fonctionnement des éléments de la transmission qui agissent sur la fourche pivotante (12) et provoquent sa rotation.An axis (34) on which a double transmission (34A-34B) is fixed moves to the right in this case, causing the operation of the elements of the transmission which act on the pivoting fork (12) and cause its rotation.

La double transmission souple (34A - 34B) comprend des barillets de réglage (36) utilisables sans déchausser afin d'obtenir un déplacement parfaitement rectiligne (Fig.13).The flexible double transmission (34A - 34B) includes adjusting barrels (36) which can be used without taking off the shoes in order to obtain a perfectly rectilinear movement (Fig. 13).

Afin de se déplacer en pas alternatif, le mécanisme de pivotement de la fourche est bloqué lorsque le ski est en arrière, poids du corps sur le ski avant. Le centre de gravité est pendant cette phase sur la partie avant de la fixation du ski arriére, le talon étant soulevé: la partie arrière de la pédale de direction se soulève, une came (35) s'engage dans les guides cylindriques (37) et bloque tout le mécanisme de direction, le ski se déplace en ligne droite. Lorsque le ski arrière est ramené vers l'avant, le poids du corps appuie progressivement sur la surface totale de la pédale qui descend légèrement, la came (35) est libérée et peut passer au-dessous des guides (37) pour effectuer les mouvements latéraux permettant les virages.In order to move in an alternative step, the pivoting mechanism of the fork is locked when the ski is back, body weight on the front ski. The center of gravity is during this phase on the front part of the binding of the rear ski, the heel being raised: the rear part of the steering pedal lifts, a cam (35) engages in the cylindrical guides (37) and blocks the entire steering mechanism, the ski moves in a straight line. When the rear ski is brought forward, the body weight gradually presses on the total surface of the pedal which descends slightly, the cam (35) is released and can pass below the guides (37) to perform the movements lateral allowing turns.

En position de descente directe, le poids du corps est réparti sur la surface totale du pied. La pédale de direction appuie à plat sur ses guides (32) qui traversent l'élément de pédale de frein (F) par des orifices (39) pour permettre la rotation de l'élément de pédale de direction (D) sur les tubes (33).In the direct descent position, the body weight is distributed over the entire surface of the foot. The steering pedal presses flat on its guides (32) which pass through the brake pedal element (F) through holes (39) to allow rotation of the steering pedal element (D) on the tubes ( 33).

Un élastique ou ressort (40), fixé en (41) sur un flasque (42) de l'élément de pédale de frein (F) tire vers le haut une poulie inférieure (43) montée par un axe (44) sur un montant (45) de l'élément de pédale de direction (D). Lorsque le côté de cette pédale est légèrement soulevé, une poulie supérieure (46) montée par un axe (47) sur le montant (45) quitte le centre et tend à se déplacer latéralement sous l'action de l'élément élastique (40) dont la tension est réglable au niveau de son point de fixation (41), améliorant le fonctionnement de la direction.An elastic or spring (40), fixed at (41) on a flange (42) of the brake pedal element (F) pulls up a lower pulley (43) mounted by an axis (44) on an upright (45) of the steering pedal element (D). When the side of this pedal is slightly raised, an upper pulley (46) mounted by a pin (47) on the upright (45) leaves the center and tends to move laterally under the action of the elastic element (40) the tension of which is adjustable at its fixing point (41), improving the operation of the steering.

Une fenêtre (48) est pratiquée dans le flasque (42) pour permettre le débattement de l'axe (47) au travers de ce flasque et la poulie supérieure (46) est susceptible de rencontrer sur le flasque (42) un plan incliné (49) en deux parties ménageant entre elles une partie centrale.A window (48) is formed in the flange (42) to allow the movement of the axis (47) through this flange and the upper pulley (46) is likely to meet on the flange (42) an inclined plane ( 49) in two parts leaving between them a central part.

Au cours du freinage, l'élément de pédale de direction (D) et l'élément de pédale de frein (F) sont soulevés simultanément, la poulie (46) bute sur la partie centrale du plan incliné et transmet l'élévation à l'élément de pédale de frein (F).During braking, the steering pedal element (D) and the brake pedal element (F) are lifted simultaneously, the pulley (46) abuts on the central part of the inclined plane and transmits the elevation to the '' brake pedal element (F).

Il doit être remarqué qu'une disposition à fenêtre (48A) est également adoptée pour permettre le débattement de l'axe (34) de transmission au travers d'un flasque (42A) disposé à l'opposé du flasque (42) sur l'élément de pédale de frein (F).It should be noted that a window arrangement (48A) is also adopted to allow the movement of the transmission axis (34) through a flange (42A) disposed opposite the flange (42) on the '' brake pedal element (F).

De même un agencement à poulie inférieure (43A) montée sur un montant (45A) de l'élément de pédale de direction (D) et associé à un élastique ou ressort (40A) fixé en (41A) sur un flasque (42A) de l'élément de pédale de frein (F) est prévu à cette extrémité de l'ensemble élément de pédale de direction (D) et élément de pédale de frein (F).Similarly, an arrangement with a lower pulley (43A) mounted on an upright (45A) of the steering pedal element (D) and associated with an elastic or spring (40A) fixed at (41A) on a flange (42A) of the brake pedal element (F) is provided at this end of the steering pedal element (D) and brake pedal element (F) assembly.

En d'autres termes, l'élément de pédale de direction (D) se trouve suspendu en berceau sur l'élément de pédale de frein (F).In other words, the steering pedal element (D) is suspended in a cradle on the brake pedal element (F).

Au cours d'une descente ou d'un pas tournant sur le plat, il est nécessaire de soulever légèrement un ski. Pour éviter dans ce cas l'action du frein, un dispositif (50) maintient l'élément de pédale de frein (F) en position horizontale. Ce mécanisme est fixé par deux boulons (51) sur la partie (2) du cadre. Il reçoit et bloque un axe (52) fixé sur le flasque (42) de l'élement de pédale de frein (F) lorsque le skieur est en position de descente. Ce mécanisme à leviers (53) de blocage a axe de pivotement (54) est reglable par tension d'un ressort (55) reliant les leviers, en fonction du poids du ski.During a descent or a turning step on the flat, it is necessary to lift a ski slightly. To avoid in this case the action of the brake, a device (50) keeps the brake pedal element (F) in a horizontal position. This mechanism is fixed by two bolts (51) on the part (2) of the frame. It receives and blocks an axis (52) fixed on the flange (42) of the brake pedal element (F) when the skier is in the descent position. This lever mechanism (53) for locking a pivot axis (54) is adjustable by tensioning a spring (55) connecting the levers, according to the weight of the ski.

Pendant le freinage, l'axe (52) se soulève, écarte les leviers (53) qui le bloquaient, et l'élément de pédale de frein (F) se trouve libéré.During braking, the axis (52) lifts, draws aside the levers (53) which blocked it, and the brake pedal element (F) is released.

La chaussure doit transmettre tous les mouvements au mécanisme de freinage et de direction. Ce mouvement est latéral ou antéro- postérieur.The shoe must transmit all movements to the braking and steering mechanism. This movement is lateral or anteroposterior.

Dans le déplacement par pas alternatif, il est nécessaire d'avoir une certaine souplesse au niveau de la plante du pied. De plus, le mouvement doit se prolonger au maximum. Un axe de rotation (56) situé complètement au bout de la chaussure permet un mouvement très ample. De plus, le ski n'est jamais soulevé dans le pas alternatif mais tiré vers l'avant en recherchant le contact des roues avant avec le sol.In displacement by alternative steps, it is necessary to have a certain flexibility at the level of the sole of the foot. In addition, the movement must extend as far as possible. An axis of rotation (56) located completely at the end of the shoe allows a very wide movement. In addition, the ski is never lifted in the alternative step but pulled forward while seeking the contact of the front wheels with the ground.

En position de descente, le pied à plat est bloqué au niveau du talon par un guide (57) évitant tout déplacement latéral.In the descent position, the flat foot is locked at the heel by a guide (57) preventing any lateral movement.

Des bâtons de skis à neige dont la pointe est munie d'un embout caoutchouté ou métallique, suivant l'état du sol, peuvent être utilisés normalement.Poles of snow skis whose point is provided with a rubberized or metallic tip, depending on the state of the ground, can be used normally.

Le ski à roues selon l'invention, de simulation des skis à neige, permet de se déplacer en ligne droite, monter, descendre, freiner, tourner en utilisant les mouvements des articulations basses de l'individu, comme cela se produit sur la neige.The wheeled ski according to the invention, simulating snow skis, makes it possible to move in a straight line, go up, down, brake, turn using the movements of the lower joints of the individual, as happens on snow.

Sa pratique améliore l'équilibre, la coordination des mouvements, crée des automatismes, facilitant l'initiation, le perfectionnement et l'entraînement (technique et foncier) à la majeure partie des gestes utilisés au cours des séances de ski de fond et de ski alpin sur neige : pas alternatif, stakning, stawug, descente, virages, godille, slalom.Its practice improves balance, coordination of movements, creates automatisms, facilitating initiation, improvement and training (technical and land) in most of the gestures used during cross-country and ski sessions. alpine on snow: alternative step, stakning, stawug, downhill, turns, scull, slalom.

Le ski à roues selon l'invention offre une grande sécurité. En période d'adaptation, dans le cas où le skieur débutant prend une position de recul trop accentuée, la pédale de frein se soulève et le frein entre en action; le skieur se déplace vers l'avant alors que le ski est bloqué. De ce fait, l'équilibre se rétablit et la chute en arrière est évitée.The wheeled ski according to the invention offers great security. During the adaptation period, in the case where the beginner skier takes too steep a backward position, the brake pedal lifts and the brake comes into action; the skier moves forward while the ski is blocked. As a result, the balance is restored and the fall back is avoided.

Pour freiner efficacement, le skieur doit se placer au préalable dans une position identique à celle qu'il doit avoir au moment du freinage pour éviter le déséquilibre avant. De ce fait, il ne peut pas commettre d'erreur de position pendant le freinage.To brake effectively, the skier must first place himself in a position identical to that which he must have when braking to avoid the imbalance before. As a result, he cannot commit a position error during braking.

Claims (11)

1 - Wheeled skis, simulating snow skis, comprising a frame (C) maintained by a front axle (2) with a pair of wheels (7) and a rear axle (4) and wheels (7A) in which a rocking motion on the part of the skier against the frame (C) causes the rear wheels to change direction, as follows:
- The front axle (2) has fixed off-set wheels (7) and is fixed to the frame such that change in direction is not possible whereas the rear axle (4) and wheels (7A) are articulated about a vertical axis on the frame,
- The central part (3) of the frame (C) has two pedals, one is a brake (F), the other for steering (D), the latter holding the skiers' foot and itself being held by the brake pedal (F), and able to pivot laterally. The brake pedal is mounted on a horizontal, transversal axle (28) fixed to the frame (C). These pedals operate, according to their function, on the rear axle (4) and wheels (7A), using appropriate mechanisms.
2 - Wheeled skis in accordance with claim 1, with features as follows: The sides (6) of the frame are covered with a friction-reducing material which protects the wheels (7, 7A) of the front and rear axles (2,4), the rear wheels (4) being able to pivot freely outwards due to cutouts on the respective lateral parts of the frame.
3 - Wheeled skis in accordance with either of claims 1 and 2 featuring a brake pedal (D) held in a cradle over the brake pedal (F) such that the shoe (56) is positioned between the wheels as close to the ground as possible.
4 - Wheeled skis in accordance with either of claims 1 to 3 featuring pulleys (43) (43 A) fixed to the brake pedal (F) by an elastic device (40) (40A), thus forming the cradle.
5 - Wheeled skis in accordance with either of claims 1 to 4 featuring two devices (33) placed lengthways on top of the brake pedal (F) allowing the steering pedal (D) to either rest flat on the two devices or on one only.
6 - Wheeled skis in accordance with either of claims 1 to 5 featuring a brake mechanism (16 - 16A and 11) on the rear wheels (7 - 7A) a flexible cable connecting this mechanism to the brake pedal (F).
7 - Wheeled skis in accordance with either of claims 1 to 6 featuring a heelplate (31) liable to come into direct contact with the ground, on the brake pedal.(F)
8 - Wheeled skis in accordance with either claims 1 to 7 featuring a stearing-device (12) bearing the rear axle and wheels (7 - 7A), a double flexible cable connecting the said device (12) to the steering pedal.
9 - Wheeled skis in accordance with either of claims 1 to 8 featuring an associated mechanism (35) (37) allowing, according to the position of the brake pedal (F) and thus, the two pedals (F - D), to block or to free the pivoting device (12).
10 - Wheeled skis in accordance with either of claims 1 to 9 featuring an associated mechanism (46) (49) allowing, by pressure on the brake pedal (F) in (49), improvement in the steering of the ski when the direction pedal (D) is inclined to one side.
11 - Wheeled skis in accordance with either claims 1 to 10 featuring an associated mechanism (50) supported by part of the frame which allows, by the tightening of a part (52) fixed to the brake pedal (F), to maintain this pedal in a horizontal position during use under certain conditions.
EP83430025A 1982-07-15 1983-07-11 Device to simulate skiing on snow Expired EP0099844B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83430025T ATE25339T1 (en) 1982-07-15 1983-07-11 DEVICE FOR SIMULATING SKIING ON SNOW.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8212529 1982-07-15
FR8212529A FR2530153B1 (en) 1982-07-15 1982-07-15 SNOW SKIS SIMULATION DEVICE

Publications (2)

Publication Number Publication Date
EP0099844A1 EP0099844A1 (en) 1984-02-01
EP0099844B1 true EP0099844B1 (en) 1987-02-04

Family

ID=9276060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83430025A Expired EP0099844B1 (en) 1982-07-15 1983-07-11 Device to simulate skiing on snow

Country Status (4)

Country Link
EP (1) EP0099844B1 (en)
AT (1) ATE25339T1 (en)
DE (1) DE3369651D1 (en)
FR (1) FR2530153B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024115594A1 (en) 2022-11-30 2024-06-06 Basf Se Acetic acid for intensifying or modifying the aroma of aroma chemicals

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748666B1 (en) * 1996-05-20 1998-07-10 Fossat Guy DEVICE FOR THE FUNCTIONAL REHABILITATION OF BALANCE AND COORDINATION IN THE FORM OF "ALL TERRAIN" WHEEL SKIS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3545779A (en) * 1968-05-10 1970-12-08 Thomas S Simms Wheeled ski
DE2150912A1 (en) * 1971-10-13 1973-04-19 Geb Wolf Gertrud Foerster ROLLER DRY SKI
US4133546A (en) * 1977-03-28 1979-01-09 Frank Rosenblum Vehicle
US4134600A (en) * 1977-04-25 1979-01-16 Mcdonald Benjamin J Roller ski apparatus with spring suspension

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024115594A1 (en) 2022-11-30 2024-06-06 Basf Se Acetic acid for intensifying or modifying the aroma of aroma chemicals

Also Published As

Publication number Publication date
FR2530153A1 (en) 1984-01-20
FR2530153B1 (en) 1986-06-20
EP0099844A1 (en) 1984-02-01
ATE25339T1 (en) 1987-02-15
DE3369651D1 (en) 1987-03-12

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