EP0178194B1 - Ski-training device - Google Patents

Ski-training device Download PDF

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Publication number
EP0178194B1
EP0178194B1 EP85401568A EP85401568A EP0178194B1 EP 0178194 B1 EP0178194 B1 EP 0178194B1 EP 85401568 A EP85401568 A EP 85401568A EP 85401568 A EP85401568 A EP 85401568A EP 0178194 B1 EP0178194 B1 EP 0178194B1
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EP
European Patent Office
Prior art keywords
support plate
training device
fact
ski training
sole
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.)
Expired
Application number
EP85401568A
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German (de)
French (fr)
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EP0178194A1 (en
Inventor
Joseph Skovajsa
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Individual
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Individual
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Publication date
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Priority to AT85401568T priority Critical patent/ATE39847T1/en
Publication of EP0178194A1 publication Critical patent/EP0178194A1/en
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Publication of EP0178194B1 publication Critical patent/EP0178194B1/en
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/18—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with elements, i.e. platforms, having a circulating, nutating or rotating movement, generated by oscillating movement of the user, e.g. platforms wobbling on a centrally arranged spherical support
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/0004—Exercising devices moving as a whole during exercise
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/18—Training appliances or apparatus for special sports for skiing
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/18—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with elements, i.e. platforms, having a circulating, nutating or rotating movement, generated by oscillating movement of the user, e.g. platforms wobbling on a centrally arranged spherical support
    • A63B2022/185—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with elements, i.e. platforms, having a circulating, nutating or rotating movement, generated by oscillating movement of the user, e.g. platforms wobbling on a centrally arranged spherical support specially adapted for using with a single foot or hand

Definitions

  • the present invention relates to a training device for skiing.
  • the training device allows on the one hand a physical exercise improving the resistance of the skier as well as the flexibility thereof, and on the other hand a simulation of the movements of a skier on a ski slope .
  • FR-A-2 245 387 describes for example an apparatus comprising a movable plate on which the user rests, movable on a fixed frame between two extreme positions determined by stops, and urged towards a rest position by a return spring .
  • FR-A-2 350 857 describes a device comprising two parallel boards adapted to undergo a lowering movement against the action of elastic means, as well as a pivoting movement around a longitudinal horizontal median axis on a support itself pivoting about an axis normal to the axes of articulation of the boards and substantially vertical.
  • the inclination of the base on the horizontal is also adjustable.
  • FR-A-2 067 398 describes a training device for skiing comprising two trolleys simulating skis, mobile on an inclined plane resting on the ground. More precisely, each of the carriages is capable of being driven by two independent movements, one of rotation parallel to the inclined plane, around a fixed axis perpendicular to the inclined plane, the other of variable inclination relative to the inclined plane. , by rotation about an axis parallel to said inclined plane.
  • FR-A-2 292 494 relates to a training apparatus for skiing comprising two oscillating and sliding footrests.
  • FR-A-2 155 709 describes a training apparatus for skiing comprising two skis mounted on a pivot and movable by means of rollers on a base provided with bosses.
  • Document US-A-3,207,510 describes a training device for skiing comprising a generally horizontal support plate, oscillating about a transverse axis and generally horizontal on a crown itself capable of pivoting, relative to a base , around a main axis of longitudinal and generally horizontal symmetry.
  • This device further comprises two pads on which the feet of a user rest, pivoted on the support plate, respectively on either side of a plane of symmetry passing through the main pivot axis of the plate, around respective auxiliary axes, central, generally parallel and pendicular to the upper surface of the support plate.
  • the auxiliary pivot axes of the pads intersect the transverse pivot axis of the support plate.
  • the pads are associated with threaded means and elastic means making it possible to control the friction between the pads and the support plate.
  • the problem to be solved is therefore to propose a training device for skiing, which is both simple, economical and robust, which allows on the one hand an effective physical training and on the other hand a simple and automatic simulation of the movements of the ski. skier.
  • ski training device thus makes it possible to safely avoid the addiction to a wrong positioning.
  • the alternating tilting of the support plate around the associated main axis is carried out during the alternating pivoting of the pads around their respective axes, induced by the user, when the point of application of the weight of the user on the support plate crosses a vertical plane passing through the associated main axis of pivoting of the support plate.
  • the auxiliary axes are provided in the vicinity of the front end of the pads.
  • the auxiliary axes are located halfway width of the respective associated pads and the width of each pad is slightly less than the distance separating the auxiliary axes.
  • the extreme positions of the pads are defined by the reciprocal support of the pads, which avoids the installation of additional stops on the support plate and thus allows a particularly simple embodiment device.
  • each skate is provided with a shoe. This arrangement improves positioning.
  • each shoe is immobilized on the support plate by elastic engagement of a pin secured to the shoe, in a complementary bore made in the plate.
  • no auxiliary fixing device is necessary.
  • the support plate is formed of a body whose upper surface is planar and the lower surface is composed of two relatively inclined planes, delimiting a main main pivot bearing at their junction.
  • the support plate comprises a generally planar upper veil supported by transverse ribs having two relatively inclined edges, which delimit a main longitudinal pivot bearing at their junction.
  • each pad advantageously comprises a generally planar body whose lower surface is provided with several protrusions intended to slide on the support plate during the pivoting of the pads.
  • the support plate is made of thermoplastic material, such as polyacetal, and preferably at least partially using polyacetal based on molybdenum.
  • the angular movement in oscillation of the support plate is between 5 and 20 °, and preferably equal to about 10 °.
  • the angular movement of each shoe is between 30 and 80 ° and preferably substantially equal to 55 °.
  • the pivoting bearing of the support plate can be formed of an edge, of a plane of small width parallel to the upper surface of the plate, or even of a rounded convex surface.
  • the ski training device comprises a support plate 10 and two pads 50A, 50B.
  • the support plate 10 which generally extends horizontally and whose upper surface 11 is flat, is oscillating around a main axis of longitudinal and generally horizontal symmetry referenced PP in the figures .
  • the pads 50A and 50B which each have the general shape of an elongated flat plate are pivoted on the support plate 10, respectively on either side of a plane perpendicular to the upper surface 11 of the support plate and passing through the aforementioned axis PP, around respective auxiliary axes parallel to each other and perpendicular to the upper surface 11 of the support plate 10.
  • These auxiliary axes are referenced OA and OB in the figures.
  • axes OA and OB are symmetrical with respect to the above-mentioned plane perpendicular to the upper surface 11 of the support plate 10 and passing through the pivot axis P-P.
  • the width of the pads referenced 1 in Figures 1 and 2 is slightly less than the distance referenced d in Figures 1 and 2 separating the auxiliary axes OA and OB.
  • the drive device is in perfect balance, and a regular space exists between the adjacent longitudinal edges 51 A and 51 B of the pads.
  • the support plate 10 rocks in synchronism, alternatively, around of the associated main axis PP.
  • the support plate 10 comprises a generally flat upper veil 12 supported by parallel transverse ribs 13 each having two edges 14, 15 relatively inclined (as appears in FIGS. 4A to 4C which will be described later) and delimiting a main longitudinal pivot bearing at their junction.
  • the lower surface of the web 12 is provided with a longitudinal central rib 16, perpendicular to the ribs 13 mentioned above.
  • the longitudinal rib 16 is connected to the transverse ribs 13 at the junction zones of the inclined edges 14 and 15.
  • the lower surface of the longitudinal rib 16 may have an edge 17 coinciding with the main axis P-P and forming a pivot bearing for the support plate 10.
  • the lower surface of the longitudinal rib 16 delimits a plane generally parallel to the upper surface 11 of the support plate and forming a pivot bearing for that -this.
  • the main pivot axis is split in the form of two secondary axes coincident with the parallel edges of the above-mentioned plane 18.
  • the lower surface of the longitudinal edge 16 is delimited by a rounded convex surface 19, for example in the sector of a cylinder.
  • the main pivot axis P-P coincides with the center of curvature of the rounded convex surface 19.
  • the support plate can be formed of a body whose upper surface is flat and the lower surface is composed of two relatively inclined faces, delimiting a main main pivot bearing at their junction.
  • the support plate can be formed of a flat base pivotally mounted by means of pins or functionally equivalent means on a fixed base.
  • the upper web 12 of the support plate 10 is provided, between two adjacent transverse ribs 13, with orifices 20, 21 with an axis perpendicular to the upper surface 11 and symmetrical with respect to the aforementioned plane normal to the upper surface 11 and passing through l main axis PP.
  • These bores 20, 21 receive, at articulation, the pads 50A and 50B.
  • each shoe 50 is formed by a flat body 52 of rectangular outline comprising on its upper surface 53 stiffening ribs 54, 55 and 56, and on its lower surface 59 of the protrusions 60, 61 and 62 resting on the upper surface 11 of the support plate 10.
  • each shoe 50 comprises a rib 54 of rectangular outline formed on the periphery of the body 52 and forming a border, a longitudinal middle rib 55 and a plurality of ribs 56 inclined opposite the longitudinal central rib 55 and connecting the latter to the longitudinal sections of the edge 54.
  • the various ribs 54, 55 and 56 are reinforced at their respective junction zone by studs 57.
  • FIG. 5 the presence of studs 58 on the upper surface 53 of the body 52. These studs 58 are advantageously used for fixing a shoe or a shoe support as referenced schematically in broken lines , under the reference C in FIG. 7.
  • cross-country ski boot bindings can thus be anchored on the aforementioned studs 58.
  • This protuberance 60 surrounds a pin 80 which is coaxial with it, intended to penetrate one of the aforesaid bores 20, 21, the structure of which will be discussed in more detail below with reference in particular to FIG. 8.
  • protrusions 60, 61 and 62 thus described are intended to limit the contact surface between the pads 50 and the support plate 10 in order to reduce the friction between these elements.
  • the pin 80 of generally cylindrical casing projecting from the lower surface 59 of the pads 50, is formed from a plurality of separate, slightly elastic fins 81 provided with undercuts 82 projecting outwardly from the pin 80 transversely to the axis 83 thereof.
  • the cross section of the body of the journal 80 (considered parallel to the surfaces 53 and 59) is slightly less than the internal diameter of the bores 20, 21, while the cross section of the pin 80, considered at the level of the undercuts 82 is slightly greater than the internal diameter of the bores 20, 21.
  • each draft 82 has an engagement edge 84 which converges in the direction of the axis 83 away from the lower surface 59, to facilitate the engagement of the journal 80 in the one of the bores 20, 21, as well as a blocking surface 85 parallel to the surface 59, and intended to rest against the lower surface of the web 12 after elastic engagement of the journal 80 in one of the bores 20, 21, to immobilize a shoe 50 on the support plate 10.
  • journal 80 which has just been described is capable of being replaced by any functionally equivalent means.
  • the pads 50 can be pivotally retained on the support plate 10 by means of threaded means (associated, where appropriate, with a washer) engaging in a cylindrical trunnion 80 integral with the pads 50 and engaged in the one of the bores 20, 21.
  • the ski training device according to the present invention is made of a thermoplastic material, preferably polyacetal.
  • At least the pads 50 are produced using polyacetal based on molybdenum.
  • the lower surface of the support plate can be provided with adjustable projecting means (such as threaded systems) making it possible to adjust the amplitude of the angular movement in oscillation of the support plate.
  • adjustable projecting means such as threaded systems
  • the support plate can be provided with means making it possible to adjust the distance separating the auxiliary axes OA and OB, in order to adjust the amplitude of the angular movement of the pads.
  • elastic means for returning to a median rest position can be associated with the pads.
  • sensors such as switches
  • sensors can be placed on the support plate in order to visualize the passage of the pads in the extreme position.
  • the means for adjusting the distance separating the auxiliary axes OA and OB can be formed by spacing steps adjustable by a threaded system.
  • the purpose of this device 100 is to allow the use of the training device for skiing, using any type of conventional boot.
  • the device illustrated in Figure 9 allows to a large number of users using different shoe sizes, to carry out training according to a common device. Furthermore, the device illustrated in FIG. 9 by allowing the use of any type of conventional boot avoids the use of generally expensive ski boots.
  • the device illustrated in Figure 9 is adapted to be fixed on the pivoting pads respectively associated using any suitable conventional means.
  • the device illustrated in FIG. 9 comprises a support pallet equipped with two stops 120, 131 respectively front and rear and of adjustable distance for retaining the shoes supported by the pallet, whatever the size and the shape of those -this.
  • the flat and horizontal pallet 110 supports at a first end the front stop 120.
  • This consists of a sector of cylinder 121 of vertical axis whose concavity is turned towards the second end of the pallet 110, as well as a curved tongue 122 extending the cylinder sector 121 intended to overlap the front end of the shoe.
  • the second stop 131, rear, is placed on a slider 130 movable in translation as illustrated by the arrow referenced T, on the pallet 110, in order to allow the distance separating the two stops 120, 131 to be adjusted.
  • the immobilization of the cursor 130 on the pallet 110 is carried out using an elastic structure 132 integral with the cursor 130 and comprising a projection 133 cooperating with a grooved track 123 produced longitudinally on the upper surface of the pallet 110.
  • the operation of the device 100 is as follows.
  • a pair of devices 100 should be immobilized on the respective pivoting pads.
  • the user's shoes are then placed on the pallets 110 and engaged under the tongues 122.
  • the cursor 130 is advanced to abut against the rear end of the associated shoe.
  • the grooves made on track 123 are adapted to prevent the cursor 130 from moving back.
  • the pallet 110 is immobilized on the pivoting pads using conventional ski bindings.
  • the pallet 110 is provided on its lower surface with orifices into which studs provided on the pads penetrate and the pallet is immobilized using a locking stirrup pivotally mounted on the pad.
  • This device can be used or not in combination with a shoe support as illustrated in FIG. 9.
  • FIGS. 10, 11 and 12 show a planar body 252 of rectangular outline comprising on its upper surface 253 stiffening ribs 254, 255 and 256, as well as studs 258.
  • the shoe illustrated in FIGS. 10 to 12 is remarkable in that it does not rest directly on the support plate 10, but by means of rollers 280 carried in rotation in removable cages 290.
  • This arrangement makes it possible to limit the friction during the pivoting of the pads 200 on the plate 10.
  • each removable cage 290 has a generally parallelepipedic outline and defines an internal chamber 291 also parallelepipedic, connecting its lower 292 and upper 293 surfaces.
  • each removable cage 290 has an internal cylindrical bore 296 receiving in rotation a pin 285 rotatably supporting the rollers 280.
  • the cages 290 are advantageously immobilized in a removable manner on structures 210 provided on the pads 200 and defining a housing 211 complementary to the external envelope of the cages 290.
  • the engagement of the cages 290 on the pads 200 is advantageously carried out from the bottom.
  • the cages 290 have, along their lower free edge, longitudinal ribs 298, rectilinear and projecting outwards which come into abutment against complementary bearing surfaces 212 defined by the structures 210.
  • Maintaining the position of the cages 290 on the structures 210 is obtained by means of elastic projections provided in the vicinity of the upper free edge of the longitudinal side walls of the cages 290.
  • the position of the bores 296, 297 and the diameter of the rollers 280 are adapted such that the rollers 280 protrude downward relative to the cages 290 to avoid any direct contact between the pivoting pads 200 and the support plate 10 associated.
  • the axes X-X of the rollers 280 extend radially relative to the axes 0-0 of pivoting of the pads.
  • the immobilization of the shoes engaged on the studs 258 can be carried out using a hoop (not shown in the figures) comprising a hook at each of its ends, coming into engagement with undercut structures 220 formed at the front end of the pads 200 on either side of the studs 258.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
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Abstract

The present invention relates to a ski training device which comprises a generally horizontal support plate, oscillating about a principal axis of symmetry, and two sole plates on which rest the feet of a user, carried pivotally on the support plate respectively on one side and the other of a plane of symmetry passing through the principal pivoting axis of the support plate, about respective auxiliary axes generally perpendicular to the upper surface of the support plate. Alternating pivotings of the sole plates about their respective axes, induced by the user, are accompanied by an alternating rocking of the support plate about the associated principal axis.

Description

La présente invention concerne un dispositif d'entraînement pour le ski.The present invention relates to a training device for skiing.

Le dispositif d'entraînement conforme à la présente invention permet d'une part un exercice physique améliorant la résistance du skieur ainsi que la souplesse de celui-ci, et d'autre part une simulation des mouvements d'un skieur sur une piste de ski.The training device according to the present invention allows on the one hand a physical exercise improving the resistance of the skier as well as the flexibility thereof, and on the other hand a simulation of the movements of a skier on a ski slope .

De nombreux dispositifs d'entraînement pour le ski ont déjà été proposés.Many training devices for skiing have already been proposed.

Le FR-A-2 245 387 décrit par exemple un appareil comprenant une plaque mobile sur laquelle repose l'utilisateur, déplaçable sur un bâti fixe entre deux positions extrêmes déterminées par des butées, et sollicitée vers une position de repos par un ressort de rappel.FR-A-2 245 387 describes for example an apparatus comprising a movable plate on which the user rests, movable on a fixed frame between two extreme positions determined by stops, and urged towards a rest position by a return spring .

Le FR-A-2 350 857 décrit un appareil comportant deux planchettes parallèles adaptées pour subir un mouvement d'abaissement à l'encontre de l'action de moyens élastiques, ainsi qu'un mouvement de pivotement autour d'un axe médian horizontal longitudinal sur un support lui- même pivotant autour d'un axe normal aux axes d'articulation des planchettes et sensiblement vertical. De préférence, l'inclinaison du socle sur l'horizontal est par ailleurs réglable.FR-A-2 350 857 describes a device comprising two parallel boards adapted to undergo a lowering movement against the action of elastic means, as well as a pivoting movement around a longitudinal horizontal median axis on a support itself pivoting about an axis normal to the axes of articulation of the boards and substantially vertical. Preferably, the inclination of the base on the horizontal is also adjustable.

Le FR-A-2 067 398 décrit un dispositif d'entraînement pour le ski comprenant deux chariots simulant les skis, mobiles sur un plan incliné reposant sur le sol. Plus précisément, chacun des chariots est susceptible d'être animé de deux mouvements indépendants, l'un de rotation parallèlement au plan incliné, autour d'un axe fixe perpendiculaire au plan incliné, l'autre d'inclinaison variable par rapport au plan incliné, par rotation autour d'un axe parallèle audit plan incliné.FR-A-2 067 398 describes a training device for skiing comprising two trolleys simulating skis, mobile on an inclined plane resting on the ground. More precisely, each of the carriages is capable of being driven by two independent movements, one of rotation parallel to the inclined plane, around a fixed axis perpendicular to the inclined plane, the other of variable inclination relative to the inclined plane. , by rotation about an axis parallel to said inclined plane.

Le FR-A-2 292 494 concerne un appareil d'entraînement pour le ski comprenant deux repose-pieds oscillants et coulissants.FR-A-2 292 494 relates to a training apparatus for skiing comprising two oscillating and sliding footrests.

Le FR-A-2 155 709 décrit un appareil d'entraînement pour le ski comprenant deux skis montés sur pivot et déplaçables à l'aide de roulettes sur une embase munie de bossages.FR-A-2 155 709 describes a training apparatus for skiing comprising two skis mounted on a pivot and movable by means of rollers on a base provided with bosses.

Le document US-A-3 207 510 décrit un dispositif d'entraînement pour le ski comprenant un plateau support généralement horizontal, oscillant autour d'un axe transversal et généralement horizontal sur une couronne elle-même susceptible de pivotement, par rapport à une embase, autour d'un axe principal de symétrie longitudinal et généralement horizontal. Ce dispositif comprend en outre deux patins sur lesquels reposent les pieds d'un utilisateur, portés à pivotement sur le plateau support, respectivement de part et d'autre d'un plan de symétrie passant par l'axe de pivotement principal du plateau, autour d'axes auxiliaires respectifs, centraux, généralement parallèles et penpendiculaires à la surface supérieure du plateau support. Les axes auxiliaires de pivotement des patins intersectent l'axe transversal de pivotement du plateau support. De plus, les patins sont associés à des moyens filetés et à des moyens élastiques permettant de contrôler la friction entre les patins et le plateau support.Document US-A-3,207,510 describes a training device for skiing comprising a generally horizontal support plate, oscillating about a transverse axis and generally horizontal on a crown itself capable of pivoting, relative to a base , around a main axis of longitudinal and generally horizontal symmetry. This device further comprises two pads on which the feet of a user rest, pivoted on the support plate, respectively on either side of a plane of symmetry passing through the main pivot axis of the plate, around respective auxiliary axes, central, generally parallel and pendicular to the upper surface of the support plate. The auxiliary pivot axes of the pads intersect the transverse pivot axis of the support plate. In addition, the pads are associated with threaded means and elastic means making it possible to control the friction between the pads and the support plate.

D'autres dispositifs d'entraînement pou.r le ski sont décrits et représentés dans les FR-A-2023169, 2 262 362, 2336150, 2410486. 2 521 435. 2 347 946, 2 403 091 et 2 523 856.Other training devices for skiing are described and represented in FR-A-2023169, 2 262 362, 2336150, 2410486. 2 521 435. 2 347 946, 2 403 091 and 2 523 856.

Tous ces dispositifs antérieurs, s'avèrent complexes, coûteux et peu fiables. De plus, ces dispositifs antérieurs ne permettent pas de simuler de façon simple les mouvements du ski, au moins pour un débutant.All these prior devices prove to be complex, expensive and unreliable. In addition, these prior devices do not allow simulating the movements of the ski in a simple manner, at least for a beginner.

Le problème à 'résoudre est donc de proposer un dispositif d'entraînement pour le ski, à la fois simple, économique et robuste, qui permette d'une part un entraînement physique efficace et d'autre part une simulation simple et automatique des mouvements du skieur.The problem to be solved is therefore to propose a training device for skiing, which is both simple, economical and robust, which allows on the one hand an effective physical training and on the other hand a simple and automatic simulation of the movements of the ski. skier.

Le problème ainsi posé est résolu selon l'invention par un dispositif d'entraînement qui comprend « de façon connue en soi » :

  • - un plateau support généralement horizontal, oscillant autour d'un axe principal de symétrie, longitudinal et généralement horizontal et,
  • - deux patins sur lesquels reposent les pieds d'un utilisateur, portés à pivotement sur le plateau support, respectivement de part et d'autre d'un plan de symétrie passant par l'axe de pivotement principal du plateau autour d'axes auxiliaires respectifs généralement parallèles et perpendiculaires à la surface supérieure du plateau support, caractérisé par le fait que les axes auxiliaires sont décentrés longitudinalement sur les patins respectivement associés, de telle sorte que des pivotements alternatifs des patins autour de leurs axes auxiliaires respectifs, induits par l'utilisateur, s'accompagnent d'un basculement alternatif du plateau support autour de l'axe principal associé.
The problem thus posed is solved according to the invention by a drive device which comprises “in a manner known per se”:
  • a generally horizontal support plate, oscillating around a main axis of symmetry, longitudinal and generally horizontal, and
  • - two pads on which the feet of a user rest, pivotally carried on the support plate, respectively on either side of a plane of symmetry passing through the main pivot axis of the plate around respective auxiliary axes generally parallel and perpendicular to the upper surface of the support plate, characterized in that the auxiliary axes are offset longitudinally on the respective associated pads, so that alternating pivotings of the pads around their respective auxiliary axes, induced by the user , are accompanied by an alternating tilting of the support plate around the associated main axis.

Ainsi, les pivotements alternatifs des patins autour de leurs axes auxiliaires respectifs et le basculement alternatif du plateau support autour de l'axe principal associé sont nécessairement synchronisés ce qui impose à l'utilisateur une position correspondant précisément à la position du skieur.Thus, the alternating pivoting of the pads around their respective auxiliary axes and the alternating tilting of the support plate around the associated main axis are necessarily synchronized, which imposes on the user a position corresponding precisely to the position of the skier.

L'utilisation du dispositif d'entraînement pour le ski conforme à la présente invention permet ainsi d'éviter en toute sécurité l'accoutumance à un positionnement erroné.The use of the ski training device according to the present invention thus makes it possible to safely avoid the addiction to a wrong positioning.

Le basculement alternatif du plateau support autour de l'axe principal associé est réalisé lors des pivotements alternatifs des patins autour de leurs axes respectifs, induits par l'utilisateur, lorsque le point d'application du poids de l'utilisateur sur le plateau support franchit un plan vertical passant par l'axe principal associé de pivotement du plateau support.The alternating tilting of the support plate around the associated main axis is carried out during the alternating pivoting of the pads around their respective axes, induced by the user, when the point of application of the weight of the user on the support plate crosses a vertical plane passing through the associated main axis of pivoting of the support plate.

Plus précisément encore, de préférence, les axes auxiliaires sont prévus au voisinage de l'extrémité avant des patins.More precisely still, preferably, the auxiliary axes are provided in the vicinity of the front end of the pads.

Selon une caractéristique avantageuse de l'invention, les axes auxiliaires sont situés à mi-largeur des patins respectivement associés et la largeur de chaque patin est légèrement inférieure à la distance séparant les axes auxiliaires.According to an advantageous characteristic of the invention, the auxiliary axes are located halfway width of the respective associated pads and the width of each pad is slightly less than the distance separating the auxiliary axes.

Ainsi, les positions extrêmes des patins sont définies par l'appui réciproque des patins, ce qui évite l'installation de butées additionnelles sur le plateau support et permet ainsi un dispositif de réalisation particulièrement simple.Thus, the extreme positions of the pads are defined by the reciprocal support of the pads, which avoids the installation of additional stops on the support plate and thus allows a particularly simple embodiment device.

De préférence, chaque patin est muni d'une chaussure. Cette disposition permet d'améliorer le positionnement.Preferably, each skate is provided with a shoe. This arrangement improves positioning.

De façon avantageuse, chaque patin est immobilisé sur le plateau support par engagement élastique d'un tourillon solidaire du patin, dans un alésage complémentaire réalisé dans le plateau. Ainsi, aucun dispositif de fixation auxiliaire n'est nécessaire.Advantageously, each shoe is immobilized on the support plate by elastic engagement of a pin secured to the shoe, in a complementary bore made in the plate. Thus, no auxiliary fixing device is necessary.

Selon une première variante de réalisation, le plateau support est formé d'un corps dont la surface supérieure est plane et la surface inférieure est composée de deux plans inclinés relativement, délimitant un palier de pivotement principal longitudinal au niveau de leur jonction.According to a first alternative embodiment, the support plate is formed of a body whose upper surface is planar and the lower surface is composed of two relatively inclined planes, delimiting a main main pivot bearing at their junction.

Selon une seconde variante de réalisation, le plateau support comprend un voile supérieur généralement plan supporté par des nervures transversales présentant deux bords relativement inclinés, qui délimitent un palier de pivotement principal longitudinal au niveau de leur jonction.According to a second alternative embodiment, the support plate comprises a generally planar upper veil supported by transverse ribs having two relatively inclined edges, which delimit a main longitudinal pivot bearing at their junction.

Afin de limiter la surface de contact entre les patins et le plateau support, chaque patin comprend avantageusement un corps généralement plan dont la surface inférieure est munie de plusieurs protubérances destinées à coulisser sur le plateau support lors des pivotements alternatifs des patins.In order to limit the contact surface between the pads and the support plate, each pad advantageously comprises a generally planar body whose lower surface is provided with several protrusions intended to slide on the support plate during the pivoting of the pads.

De façon préférentielle, le plateau support est réalisé en matériau thermo-plastique, tel que le polyacétal, et de préférence au moins partiellement à l'aide de polyacétal à base de molybdène.Preferably, the support plate is made of thermoplastic material, such as polyacetal, and preferably at least partially using polyacetal based on molybdenum.

Selon une caractéristique avantageuse de l'invention, le débattement angulaire en oscillation du plateau support est compris entre 5 et 20°, et de préférence égal à environ 10°.According to an advantageous characteristic of the invention, the angular movement in oscillation of the support plate is between 5 and 20 °, and preferably equal to about 10 °.

Selon une autre caractéristique de l'invention, le débattement angulaire de chaque patin est compris entre 30 et 80° et de préférence sensiblement égal à 55°.According to another characteristic of the invention, the angular movement of each shoe is between 30 and 80 ° and preferably substantially equal to 55 °.

Selon le mode de réalisation retenu, le palier de pivotement du plateau support peut être formé d'une arête, d'un plan de faible largeur parallèle à la surface supérieure du plateau, ou encore d'une surface convexe arrondie.According to the embodiment chosen, the pivoting bearing of the support plate can be formed of an edge, of a plane of small width parallel to the upper surface of the plate, or even of a rounded convex surface.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée qui va suivre, et en regard des dessins annexés donnés à titre d'exemples non limitatifs et sur lesquels :

  • - la figure 1 représente une vue schématique en perspective d'un dispositif d'entraînement pour le ski conforme à la présente invention dans une première position de basculement du plateau support et des patins,
  • - la figure 2 représente une vue schématique en perspective du même dispositif d'entraînement pour le ski dans une seconde position de basculement du plateau support, et des patins,
  • - la figure 3 représente une vue de dessous d'un plateau support utilisé dans un dispositif d'entraînement pour le ski conforme à la présente invention,
  • - les figures 4A, 4B et 4C représentent, selon une vue avant, trois variantes de réalisation d'un plateau support utilisé dans un dispositif d'entraînement pour le ski conforme à la présente invention,
  • - la figure 5 représente une vue de dessus d'un patin utilisé dans un dispositif d'entraînement pour le ski conforme à la présente invention,
  • - la figure 6 représente une vue de dessous d'un patin utilisé dans un dispositif d'entraînement pour le ski conforme à la présente invention,
  • - la figure 7 représente une vue schématique latérale d'un patin équipé d'une chaussure, utilisé dans un dispositif d'entraînement pour le ski conforme à la présente invention, et
  • - la figure 8 illustre un détail de fixation d'un patin sur un plateau support d'un dispositif d'entraînement pour le ski conforme à la présente invention.
Other characteristics and advantages of the present invention will appear on reading the detailed description which follows, and with reference to the appended drawings given by way of nonlimiting examples and in which:
  • FIG. 1 represents a schematic perspective view of a training device for skiing according to the present invention in a first tilting position of the support plate and of the pads,
  • FIG. 2 represents a schematic perspective view of the same drive device for skiing in a second tilting position of the support plate, and of the pads,
  • FIG. 3 represents a bottom view of a support plate used in a training device for skiing according to the present invention,
  • FIGS. 4A, 4B and 4C show, in a front view, three alternative embodiments of a support plate used in a training device for skiing according to the present invention,
  • FIG. 5 represents a top view of a skate used in a ski training device according to the present invention,
  • FIG. 6 represents a bottom view of a skate used in a ski training device according to the present invention,
  • FIG. 7 represents a schematic side view of a skate equipped with a shoe, used in a training device for skiing according to the present invention, and
  • - Figure 8 illustrates a detail of fixing a shoe on a support plate of a training device for skiing according to the present invention.

D'une façon générale, comme cela est illustré sur la figure 1, le dispositif d'entraînement pour le ski conforme à la présente invention comprend un plateau support 10 et deux patins 50A, 50B.Generally, as illustrated in FIG. 1, the ski training device according to the present invention comprises a support plate 10 and two pads 50A, 50B.

Comme cela apparaît après examen comparé des figures 1 et 2, le plateau support 10 qui s'étend généralement horizontalement et dont la surface supérieure 11 est plane, est oscillant autour d'un axe principal de symétrie longitudinal et généralement horizontal référencé P-P sur les figures.As appears after a comparative examination of FIGS. 1 and 2, the support plate 10 which generally extends horizontally and whose upper surface 11 is flat, is oscillating around a main axis of longitudinal and generally horizontal symmetry referenced PP in the figures .

Les patins 50A et 50B qui ont chacun la forme générale d'une plaque plane allongée sont portés à pivotement sur le plateau support 10, respectivement de part et d'autre d'un plan perpendiculaire à la surface supérieure 11 du plateau support et passant par l'axe P-P précité, autour d'axes auxiliaires respectifs parallèles entre eux et perpendiculaires à la surface supérieure 11 du plateau support 10. Ces axes auxiliaires sont référencés OA et OB sur les figures.The pads 50A and 50B which each have the general shape of an elongated flat plate are pivoted on the support plate 10, respectively on either side of a plane perpendicular to the upper surface 11 of the support plate and passing through the aforementioned axis PP, around respective auxiliary axes parallel to each other and perpendicular to the upper surface 11 of the support plate 10. These auxiliary axes are referenced OA and OB in the figures.

Ces axes OA et OB sont symétriques par rapport au plan précité perpendiculaire à la surface supérieure 11 du plateau support 10 et passant par l'axe de pivotement P-P.These axes OA and OB are symmetrical with respect to the above-mentioned plane perpendicular to the upper surface 11 of the support plate 10 and passing through the pivot axis P-P.

La largeur des patins référencés 1 sur les figures 1 et 2 est légèrement inférieure à la distance référencée d sur les figures 1 et 2 séparant les axes auxiliaires OA et OB.The width of the pads referenced 1 in Figures 1 and 2 is slightly less than the distance referenced d in Figures 1 and 2 separating the auxiliary axes OA and OB.

Ainsi, lorsque les patins 50A et 50B s'étendent généralement parallèlement à l'axe principal P-P, le dispositif d'entraînement est en parfait équilibre, et un espace régulier existe entre les bords longitudinaux adjacents 51 A et 51 B des patins.Thus, when the pads 50A and 50B extend generally parallel to the main axis P-P, the drive device is in perfect balance, and a regular space exists between the adjacent longitudinal edges 51 A and 51 B of the pads.

Par contre, dès lors qu'un utilisateur reposant sur les patins induit une inclinaison de ceux-ci par rapport à l'axe P-P, comme représenté sur les figures 1 ou 2, le plateau support 10 bascule en synchronisme, de façon alternative, autour de l'axe principal P-P associé.On the other hand, as soon as a user resting on the pads induces an inclination of the latter relative to the axis PP, as shown in FIGS. 1 or 2, the support plate 10 rocks in synchronism, alternatively, around of the associated main axis PP.

Selon un mode de réalisation préférentiel représenté sur la figure3, le plateau support 10 comprend un voile supérieur 12 généralement plan supporté par des nervures transversales parallèles 13 présentant chacune deux bords 14, 15 inclinés relativement (comme cela apparaît sur les figures 4A à 4C qui seront décrites ultérieurement) et délimitant un palier de pivotement principal longitudinal au niveau de leur jonction.According to a preferred embodiment shown in FIG. 3, the support plate 10 comprises a generally flat upper veil 12 supported by parallel transverse ribs 13 each having two edges 14, 15 relatively inclined (as appears in FIGS. 4A to 4C which will be described later) and delimiting a main longitudinal pivot bearing at their junction.

Plus précisément encore, selon le mode de réalisation représenté sur la figure 3, la surface inférieure du voile 12 est munie d'une nervure médiane longitudinale 16, perpendiculaire aux nervures 13 précitées. Comme cela apparaît à l'examen de la figure 3, la nervure longitudinale 16 est reliée aux nervures transversales 13 au niveau des zones de jonction des bords inclinés 14 et 15.More precisely still, according to the embodiment shown in FIG. 3, the lower surface of the web 12 is provided with a longitudinal central rib 16, perpendicular to the ribs 13 mentioned above. As appears on examining FIG. 3, the longitudinal rib 16 is connected to the transverse ribs 13 at the junction zones of the inclined edges 14 and 15.

Selon une première variante de réalisation illustrée sur la figure 4A, la surface inférieure de la nervure longitudinale 16 peut présenter une arête 17 coïncidant avec l'axe principal P-P et formant palier de pivotement pour le plateau support 10.According to a first alternative embodiment illustrated in FIG. 4A, the lower surface of the longitudinal rib 16 may have an edge 17 coinciding with the main axis P-P and forming a pivot bearing for the support plate 10.

Selon une autre variante de réalisation, considérée actuellement comme préférentielle, et illustrée notamment sur les figures 3 et 4B, la surface inférieure de la nervure longitudinale 16 délimite un plan généralement parallèle à la surface supérieure 11 du plateau support et formant palier de pivotement pour celui-ci. Dans un tel cas, lorsque le dispositif d'entraînement conforme à la présente invention est utilisé sur une surface support parfaitement rigide, l'axe de pivotement principal est dédoublé sous forme de deux axes secondaires confondus avec les bords parallèles du plan 18 précité.According to another alternative embodiment, currently considered preferential, and illustrated in particular in FIGS. 3 and 4B, the lower surface of the longitudinal rib 16 delimits a plane generally parallel to the upper surface 11 of the support plate and forming a pivot bearing for that -this. In such a case, when the drive device according to the present invention is used on a perfectly rigid support surface, the main pivot axis is split in the form of two secondary axes coincident with the parallel edges of the above-mentioned plane 18.

Selon une autre variante de réalisation illustrée sur la figure 4C, la surface inférieure de l'arête longitudinale 16 est délimitée par une surface convexe arrondie 19, par exemple en secteur de cylindre. Dans un tel cas, l'axe de pivotement principal P-P est confondu avec le centre de courbure de la surface convexe arrondie 19.According to another alternative embodiment illustrated in FIG. 4C, the lower surface of the longitudinal edge 16 is delimited by a rounded convex surface 19, for example in the sector of a cylinder. In such a case, the main pivot axis P-P coincides with the center of curvature of the rounded convex surface 19.

Bien entendu, les moyens permettant les oscillations du plateau support 10 entre les deux positions représentées sur les figures 1 et 2, ainsi que la structure du plateau support 10 sont susceptibles de nombreuses variantes de réalisation.Of course, the means allowing the support plate 10 to oscillate between the two positions shown in FIGS. 1 and 2, as well as the structure of the support plate 10 are susceptible of numerous variant embodiments.

A titre d'exemple, le plateau support peut être formé d'un corps dont la surface supérieure est plane et la surface inférieure est composée de deux pans inclinés relativement, délimitant un palier de pivotement principal longitudinal à leur jonction.By way of example, the support plate can be formed of a body whose upper surface is flat and the lower surface is composed of two relatively inclined faces, delimiting a main main pivot bearing at their junction.

Selon une autre variante de réalisation, le plateau support peut être formé d'une embase plane montée à pivotement par l'intermédiaire de tourillons ou moyens fonctionnellement équivalents sur un socle fixe.According to another alternative embodiment, the support plate can be formed of a flat base pivotally mounted by means of pins or functionally equivalent means on a fixed base.

Le voile supérieur 12 du plateau support 10 est muni, entre deux nervures transversales 13 adjacentes, d'orifices 20, 21 d'axe perpendiculaire à la surface supérieure 11 et symétriques par rapport au plan précité normal à la surface supérieure 11 et passant par l'axe principal P-P. Ces alésages 20, 21 reçoivent respectivement à articulation les patins 50A et 50B.The upper web 12 of the support plate 10 is provided, between two adjacent transverse ribs 13, with orifices 20, 21 with an axis perpendicular to the upper surface 11 and symmetrical with respect to the aforementioned plane normal to the upper surface 11 and passing through l main axis PP. These bores 20, 21 receive, at articulation, the pads 50A and 50B.

Selon le mode de réalisation préférentiel représenté sur les figures, en particulier sur les figures 5, 6, 7 et 8, chaque patin 50 est formé d'un corps plan 52 de contour rectangulaire comportant sur sa surface supérieure 53 des nervures de raidissement 54, 55 et 56, et sur sa surface inférieure 59 des protubérances 60, 61 et 62 reposant sur la surface supérieure 11 du plateau support 10.According to the preferred embodiment shown in the figures, in particular in Figures 5, 6, 7 and 8, each shoe 50 is formed by a flat body 52 of rectangular outline comprising on its upper surface 53 stiffening ribs 54, 55 and 56, and on its lower surface 59 of the protrusions 60, 61 and 62 resting on the upper surface 11 of the support plate 10.

Plus précisément, selon le mode de réalisation représenté sur la figure 5, la surface supérieure 53 de chaque patin 50 comprend une nervure 54 de contour rectangulaire ménagée sur la périphérie du corps 52 et formant bordure, une nervure médiane longitudinale 55 et une pluralité de nervures 56 inclinées en regard de la nervure médiane longitudinale 55 et reliant celle-ci aux sections longitudinales de la bordure 54.More specifically, according to the embodiment shown in Figure 5, the upper surface 53 of each shoe 50 comprises a rib 54 of rectangular outline formed on the periphery of the body 52 and forming a border, a longitudinal middle rib 55 and a plurality of ribs 56 inclined opposite the longitudinal central rib 55 and connecting the latter to the longitudinal sections of the edge 54.

Les différentes nervures 54, 55 et 56, sont renforcées au niveau de leur zone de jonction respective par des plots 57.The various ribs 54, 55 and 56 are reinforced at their respective junction zone by studs 57.

Par ailleurs, on remarquera sur la figure 5 la présence de plots 58 sur la surface supérieure 53 du corps 52. Ces plots 58 sont utilisés avantageusement pour la fixation d'une chaussure ou d'un support de chaussure tel que référencé schématiquement en traits interrompus, sous la référence C sur la figure 7.Furthermore, it will be noted in FIG. 5 the presence of studs 58 on the upper surface 53 of the body 52. These studs 58 are advantageously used for fixing a shoe or a shoe support as referenced schematically in broken lines , under the reference C in FIG. 7.

A titre d'exemple non limitatif, des fixations de chaussure de ski de fond peuvent ainsi être ancrées sur les plots 58 précités.By way of nonlimiting example, cross-country ski boot bindings can thus be anchored on the aforementioned studs 58.

Par ailleurs, on aperçoit à l'examen de la figure 6, une première protubérance 60 disposée au voisinage de l'avant des patins 50, de contour 63 circulaire, et dont le sommet 64 est formé d'un plan parallèle aux surfaces 53 et 59.Furthermore, on examination of FIG. 6, we see a first protuberance 60 arranged in the vicinity of the front of the pads 50, of circular outline 63, and the apex of which 64 is formed from a plane parallel to the surfaces 53 and 59.

Cette protubérance 60 entoure un tourillon 80 qui lui est coaxial, destiné à pénétrer dans l'un des alésages 20, 21 précités, et dont la structure sera évoquée plus en détail par la suite en regard notamment de la figure 8.This protuberance 60 surrounds a pin 80 which is coaxial with it, intended to penetrate one of the aforesaid bores 20, 21, the structure of which will be discussed in more detail below with reference in particular to FIG. 8.

On aperçoit par ailleurs à l'examen des figures 6 et 7, sur la surface inférieure 59 des patins 50 deux protubérances 61, 62 généralement rectilignes et parallèles, s'étendant transversalement à la nervure longitudinale 55 précitée et dont les sommets 65, 66 sont formés de plans généralement parallèles aux surfaces 53, 59 précédemment évoquées.We also see on examining Figures 6 and 7, on the lower surface 59 of the pads 50 two protrusions 61, 62 generally rectilinear and parallel, extending transversely to the longitudinal rib 55 above and whose vertices 65, 66 are formed of planes generally parallel to the surfaces 53, 59 previously mentioned.

L'homme de l'art comprendra aisément que les protubérances 60, 61 et 62 ainsi décrites ont pour but de limiter la surface de contact entre les patins 50 et le plateau support 10 afin de réduire le frottement entre ces éléments.Those skilled in the art will readily understand that the protrusions 60, 61 and 62 thus described are intended to limit the contact surface between the pads 50 and the support plate 10 in order to reduce the friction between these elements.

De préférence, comme cela est représenté sur la figure 8, le tourillon 80, d'enveloppe générale cylindrique en saillie sur la surface inférieure 59 des patins 50, est formé d'une pluralité d'aillettes 81 séparées et légèrement élastiques, munies de dépouilles 82 en saillie vers l'extérieur du tourillon 80 transversalement à l'axe 83 de celui-ci.Preferably, as shown in FIG. 8, the pin 80, of generally cylindrical casing projecting from the lower surface 59 of the pads 50, is formed from a plurality of separate, slightly elastic fins 81 provided with undercuts 82 projecting outwardly from the pin 80 transversely to the axis 83 thereof.

Comme cela apparaît à l'examen de la figure 8. la section transversale du corps du tourillon 80 (considérée parallèlement aux surfaces 53 et 59) est légèrement inférieure au diamètre interne des alésages 20, 21, tandis que la section transversale du tourillon 80, considérée au niveau des dépouilles 82 est légèrement supérieure au diamètre interne des alésages 20, 21.As shown in the examination of Figure 8. the cross section of the body of the journal 80 (considered parallel to the surfaces 53 and 59) is slightly less than the internal diameter of the bores 20, 21, while the cross section of the pin 80, considered at the level of the undercuts 82 is slightly greater than the internal diameter of the bores 20, 21.

Ainsi, l'engagement d'un tourillon 80 dans l'un des alésages 20, 21 est réalisé par déformation élastique des aillettes 81, qui reprennent élastiquement leur position de repos, lorsque les dépouilles 82 ont dépassé le voile 12 du plateau support 10.Thus, the engagement of a journal 80 in one of the bores 20, 21 is achieved by elastic deformation of the fins 81, which resiliently return to their rest position, when the bodies 82 have passed the web 12 of the support plate 10.

De préférence, comme cela est représenté sur la figure 8, chaque dépouille 82 présente un bord d'engagement 84 qui converge en direction de l'axe 83 en éloignement de la surface inférieure 59, pour faciliter l'engagement du tourillon 80 dans l'un des alésages 20, 21, ainsi qu'une surface de blocage 85 parallèle à la surface 59, et destinée à reposer contre la surface inférieure du voile 12 après engagement élastique du tourillon 80 dans l'un des alésages 20, 21, pour immobiliser un patin 50 sur le plateau support 10.Preferably, as shown in FIG. 8, each draft 82 has an engagement edge 84 which converges in the direction of the axis 83 away from the lower surface 59, to facilitate the engagement of the journal 80 in the one of the bores 20, 21, as well as a blocking surface 85 parallel to the surface 59, and intended to rest against the lower surface of the web 12 after elastic engagement of the journal 80 in one of the bores 20, 21, to immobilize a shoe 50 on the support plate 10.

Bien entendu, la structure du tourillon 80 qui vient d'être décrite est susceptible d'être remplacée par tout moyen fonctionnellement équivalent.Of course, the structure of the journal 80 which has just been described is capable of being replaced by any functionally equivalent means.

A titre d'exemple, les patins 50 peuvent être retenus à pivotement sur le plateau support 10 grâce à des moyens filetés (associés le cas échéant à une rondelle) venant en prise dans un tourillon cylindrique 80 solidaire des patins 50 et engagé dans l'un des alésages 20, 21.By way of example, the pads 50 can be pivotally retained on the support plate 10 by means of threaded means (associated, where appropriate, with a washer) engaging in a cylindrical trunnion 80 integral with the pads 50 and engaged in the one of the bores 20, 21.

De façon avantageuse, le dispositif d'entraînement pour le ski conforme à la présente invention est réalisé en un matériau thermoplastique, de préférence en polyacétal.Advantageously, the ski training device according to the present invention is made of a thermoplastic material, preferably polyacetal.

Plus précisément encore, de préférence, au moins les patins 50 sont réalisés à l'aide de polyacétal à base de molybdène.More precisely still, preferably, at least the pads 50 are produced using polyacetal based on molybdenum.

Selon un mode de réalisation donné à titre d'exemple non limitatif de la présente invention :

  • - le plateau support 10 présente une longueur référencée a sur la figure 2 de l'ordre de 42 cm, une largeur référencée b sur la figure 2 de l'ordre de 30 cm, une, inclinaison relative entre les faces 14 et 15 des nervures transversales 13 comprise entre 5 et 20° et de préférence égale à 10°,
  • - les patins 50 présentent une largeur 1 de l'ordre de 11 cm et une longueur de l'ordre de 30 cm, la surface inférieure 59 des patins 50 étant munie d'un tourillon 80 située à 7 cm du bord avant, ainsi que d'une protubérance de contour circulaire 60 d'un diamètre de 8 cm, et deux protubérances 61, 62 présentant chacune une longueur de 9,5 cm et une largeur de 1,5 cm,
  • - les alésages 20, 21 réalisés dans le plateau support sont espacés de 13 cm,
  • - la largeur du palier d'appui 18 est de 8 mm,
  • - le plateau support 10 est réalisé en matériau thermoplastique et plus précisément en polyacétal,
  • - les patins 50 sont réalisés en polyacétal à base de molybdène.
According to an embodiment given by way of nonlimiting example of the present invention:
  • the support plate 10 has a length referenced a in FIG. 2 of the order of 42 cm, a width referenced b in FIG. 2 of the order of 30 cm, one, relative inclination between the faces 14 and 15 of the ribs transverse 13 between 5 and 20 ° and preferably equal to 10 °,
  • the pads 50 have a width 1 of the order of 11 cm and a length of the order of 30 cm, the lower surface 59 of the pads 50 being provided with a pin 80 located 7 cm from the front edge, as well as a circular contour protrusion 60 with a diameter of 8 cm, and two protrusions 61, 62 each having a length of 9.5 cm and a width of 1.5 cm,
  • - the bores 20, 21 made in the support plate are spaced 13 cm apart,
  • the width of the support bearing 18 is 8 mm,
  • the support plate 10 is made of thermoplastic material and more precisely of polyacetal,
  • - The pads 50 are made of polyacetal based on molybdenum.

Bien entendu, la présente invention n'est pas limitée aux modes de réalisation particuliers qui viennent d'être décrits mais s'étend à toute variante conforme à son esprit.Of course, the present invention is not limited to the particular embodiments which have just been described but extends to any variant in accordance with its spirit.

A titre d'exemple, la surface inférieure du plateau support peut être munie de moyens en saillie réglables (tels que des systèmes filetés) permettant de régler l'amplitude du débattement angulaire en oscillation du plateau support.For example, the lower surface of the support plate can be provided with adjustable projecting means (such as threaded systems) making it possible to adjust the amplitude of the angular movement in oscillation of the support plate.

De façon similaire, le plateau support peut être muni de moyens permettant de régler la distance séparant les axes auxiliaires OA et OB, afin de régler l'amplitude du débattement angulaire des patins.Similarly, the support plate can be provided with means making it possible to adjust the distance separating the auxiliary axes OA and OB, in order to adjust the amplitude of the angular movement of the pads.

Le cas échéant, des moyens élastiques de rappel vers une position de repos médiane peuvent être associés aux patins. Dans un tel cas, des capteurs (tels que des interrupteurs) peuvent être disposés sur le plateau support afin de visualiser le passage des patins en position extrême.Where appropriate, elastic means for returning to a median rest position can be associated with the pads. In such a case, sensors (such as switches) can be placed on the support plate in order to visualize the passage of the pads in the extreme position.

Les moyens de réglage de la distance séparant les axes auxiliaires OA et OB peuvent être formés de paliers d'écartement réglable par un système fileté.The means for adjusting the distance separating the auxiliary axes OA and OB can be formed by spacing steps adjustable by a threaded system.

On remarquera enfin que grâce à la structure proposée selon l'invention, en particulier à l'articulation des patins autour d'axes auxiliaires respectifs, la position prise par les pieds de l'utilisateur correspond exactement à celle imposée pour le ski.Finally, it will be noted that thanks to the structure proposed according to the invention, in particular to the articulation of the pads around respective auxiliary axes, the position taken by the feet of the user corresponds exactly to that imposed for skiing.

On va maintenant décrire les figures 9 à 17. Plus précisément, sur celles-ci :

  • - la figure 9 représente une vue schématique en perspective d'un dispositif permettant de fixer tout type de chaussure classique sur les patins pivotant du dispositif,
  • - la figure 10 représente une vue schématique de dessus d'une variante de réalisation des patins pivotants,
  • - les figures 11 et 12 représentent deux vues de ces mêmes patins selon des vues latérales orthogonales illustrées par les flèches référencées XI et XII sur la figure 10,
  • - la figure 13 illustre schématiquement l'assemblage de roulettes sur les patins précités, selon un plan de coupe référencé XIII-XIII sur la figure 10,
  • - la figure 14 représente une vue schématique en coupe partielle selon un plan de coupe identique au plan de coupe XIII-XIII du même patin équipé de roulettes,
  • - la figure 15 représente une vue de dessus d'une cage amovible support de roulettes,
  • - la figure 16 représente une vue schématique en coupe verticale de la cage support de roulettes selon un plan de coupe référencé XVI-XVI sur la figure 14,
  • - la figure 17 représente une vue schématique en coupe horizontale de la même cage support de roulettes selon un plan de coupe référencé XVII-XVII sur les figures 14 et 16.
We will now describe Figures 9 to 17. More specifically, on these:
  • FIG. 9 represents a schematic perspective view of a device making it possible to fix any type of conventional shoe on the pivoting pads of the device,
  • FIG. 10 represents a schematic top view of an alternative embodiment of the pivoting pads,
  • FIGS. 11 and 12 represent two views of these same pads according to orthogonal lateral views illustrated by the arrows referenced XI and XII in FIG. 10,
  • FIG. 13 schematically illustrates the assembly of rollers on the aforementioned pads, according to a cutting plane referenced XIII-XIII in FIG. 10,
  • FIG. 14 represents a schematic view in partial section along a cutting plane identical to the cutting plane XIII-XIII of the same shoe fitted with rollers,
  • FIG. 15 represents a top view of a removable cage for supporting rollers,
  • FIG. 16 represents a schematic view in vertical section of the roller support cage according to a section plane referenced XVI-XVI in FIG. 14,
  • FIG. 17 represents a schematic view in horizontal section of the same roll support cage according to a cutting plane referenced XVII-XVII in FIGS. 14 and 16.

On va maintenant décrire le dispositif illustré sur la figure 9.We will now describe the device illustrated in FIG. 9.

Ce dispositif 100 a pour but de permettre l'utilisation du dispositif d'entraînement pour le ski, à l'aide de tout type de chaussure classique.The purpose of this device 100 is to allow the use of the training device for skiing, using any type of conventional boot.

Ainsi, le dispositif illustré sur la figure 9 permet à un grand nombre d'utilisateurs utilisant des pointures de chaussures différentes, de procéder à un entraînement selon un dispositif commun. Par ailleurs, le dispositif illustré sur la figure 9 en permettant l'utilisation de tout type de chaussure classique évite l'utilisation de chaussure de ski généralement onéreuse.Thus, the device illustrated in Figure 9 allows to a large number of users using different shoe sizes, to carry out training according to a common device. Furthermore, the device illustrated in FIG. 9 by allowing the use of any type of conventional boot avoids the use of generally expensive ski boots.

Le dispositif illustré sur la figure 9 est adapté pour être fixé sur les patins pivotants respectivement associés à l'aide de tout moyen classique approprié.The device illustrated in Figure 9 is adapted to be fixed on the pivoting pads respectively associated using any suitable conventional means.

Pour l'essentiel, le dispositif illustré sur la figure 9 comprend une palette support équipée de deux butées 120, 131 respectivement avant et arrière et de distance réglable pour retenir les chaussures supportées par la palette, quelles que soient la pointure et la forme de celles-ci.Essentially, the device illustrated in FIG. 9 comprises a support pallet equipped with two stops 120, 131 respectively front and rear and of adjustable distance for retaining the shoes supported by the pallet, whatever the size and the shape of those -this.

Selon l'illustration donnée sur la figure 9, la palette 110 plane et horizontale supporte à une première extrémité la butée avant 120. Celle-ci se compose d'un secteur de cylindre 121 d'axe vertical dont la concavité est tournée vers la seconde extrémité de la palette 110, ainsi que d'une languette incurvée 122 prolongeant le secteur de cylindre 121 destiné à chevaucher le bout avant de la chaussure.According to the illustration given in FIG. 9, the flat and horizontal pallet 110 supports at a first end the front stop 120. This consists of a sector of cylinder 121 of vertical axis whose concavity is turned towards the second end of the pallet 110, as well as a curved tongue 122 extending the cylinder sector 121 intended to overlap the front end of the shoe.

La seconde butée 131, arrière, est placée sur un curseur 130 déplaçable en translation comme illustré par la flèche référencée T, sur la palette 110, afin de permettre de régler la distance séparant les deux butées 120, 131.The second stop 131, rear, is placed on a slider 130 movable in translation as illustrated by the arrow referenced T, on the pallet 110, in order to allow the distance separating the two stops 120, 131 to be adjusted.

L'immobilisation du curseur 130 sur la palette 110 est réalisée à l'aide d'une structure élastique 132 solidaire du curseur 130 et comportant une saillie 133 coopérant avec une piste cannelée 123 réalisée longitudinalement sur la surface supérieure de la palette 110.The immobilization of the cursor 130 on the pallet 110 is carried out using an elastic structure 132 integral with the cursor 130 and comprising a projection 133 cooperating with a grooved track 123 produced longitudinally on the upper surface of the pallet 110.

Le fonctionnement du dispositif 100 est le suivant.The operation of the device 100 is as follows.

Dans un premier temps, il convient d'immobiliser une paire de dispositifs 100 sur les patins pivotants respectifs.Firstly, a pair of devices 100 should be immobilized on the respective pivoting pads.

Les chaussures de l'utilisateur sont alors placées sur les palettes 110 et engagées sous les languettes 122.The user's shoes are then placed on the pallets 110 and engaged under the tongues 122.

Le curseur 130 est avancé pour venir en butée contre l'extrémité arrière de la chaussure associée. Les cannelures réalisées sur la piste 123 sont adaptées pour interdire le recul du curseur 130.The cursor 130 is advanced to abut against the rear end of the associated shoe. The grooves made on track 123 are adapted to prevent the cursor 130 from moving back.

Ainsi, dans le cas où il est nécessaire d'augmenter la distance séparant les deux butées 120 et 131, il est nécessaire de soulever la structure élastique 132 pour dégager la saillie 133 de la piste 123.Thus, in the case where it is necessary to increase the distance separating the two stops 120 and 131, it is necessary to lift the elastic structure 132 in order to release the projection 133 from the track 123.

De préférence, la palette 110 est immobilisée sur les patins pivotants à l'aide de fixations classiques pour ski. Pour cela, la palette 110 est munie sur sa surface inférieure d'orifices dans lesquels pénètrent des plots prévus sur les patins et la palette est immobilisée à l'aide d'un étrier à verrouillage monté pivotant sur le patin. On va maintenant décrire les patins pivotants 200 illustrés sur les figures 10 à 17.Preferably, the pallet 110 is immobilized on the pivoting pads using conventional ski bindings. For this, the pallet 110 is provided on its lower surface with orifices into which studs provided on the pads penetrate and the pallet is immobilized using a locking stirrup pivotally mounted on the pad. We will now describe the pivoting pads 200 illustrated in FIGS. 10 to 17.

Ce dispositif peut être utilisé ou non en combinaison avec un support de chaussure tel qu'illustré sur la figure 9.This device can be used or not in combination with a shoe support as illustrated in FIG. 9.

On retrouve sur les figures 10, 11 et 12 un corps plan 252 de contour rectangulaire comportant sur sa surface supérieure 253 des nervures de raidissement 254, 255 et 256, ainsi que des plots 258.FIGS. 10, 11 and 12 show a planar body 252 of rectangular outline comprising on its upper surface 253 stiffening ribs 254, 255 and 256, as well as studs 258.

Le patin illustré sur les figures 10 à 12 est remarquable en ce qu'il ne repose pas directement sur le plateau support 10, mais par l'intermédiaire de roulettes 280 portées à rotation dans des cages amovibles 290.The shoe illustrated in FIGS. 10 to 12 is remarkable in that it does not rest directly on the support plate 10, but by means of rollers 280 carried in rotation in removable cages 290.

Cette disposition permet de limiter la friction lors du pivotement des patins 200 sur le plateau 10.This arrangement makes it possible to limit the friction during the pivoting of the pads 200 on the plate 10.

De préférence, chaque cage amovible 290 possède un contour général parallélépipédique et définit une chambre interne 291 également parallélépipédique, reliant ses surfaces inférieure 292 et supérieure 293.Preferably, each removable cage 290 has a generally parallelepipedic outline and defines an internal chamber 291 also parallelepipedic, connecting its lower 292 and upper 293 surfaces.

Les parois latérales opposées 294, 295 de chaque cage amovible 290 possèdent un alésage interne 296 cylindrique recevant à rotation un tourillon 285 supportant à rotation les roulettes 280.The opposite lateral walls 294, 295 of each removable cage 290 have an internal cylindrical bore 296 receiving in rotation a pin 285 rotatably supporting the rollers 280.

Les cages 290 sont avantageusement immobilisées de façon amovible sur des structures 210 prévues sur les patins 200 et définissant un logement 211 complémentaire de l'enveloppe extérieure des cages 290.The cages 290 are advantageously immobilized in a removable manner on structures 210 provided on the pads 200 and defining a housing 211 complementary to the external envelope of the cages 290.

L'engagement des cages 290 sur les patins 200 est avantageusement réalisé par le bas.The engagement of the cages 290 on the pads 200 is advantageously carried out from the bottom.

Les cages 290 possèdent le long de leur bord libre inférieur des nervures 298 longitudinales, rectilignes et en saillie vers l'extérieur qui viennent en butée contre des surfaces d'appui complémentaires 212 définies par les structures 210.The cages 290 have, along their lower free edge, longitudinal ribs 298, rectilinear and projecting outwards which come into abutment against complementary bearing surfaces 212 defined by the structures 210.

Le maintien en position des cages 290 sur les structures 210 est obtenu à l'aide de saillies élastiques prévues au voisinage du bord libre supérieur des parois latérales longitudinales des cages 290.Maintaining the position of the cages 290 on the structures 210 is obtained by means of elastic projections provided in the vicinity of the upper free edge of the longitudinal side walls of the cages 290.

Lors de l'engagement d'une cage 290 dans une structure 210, les saillies 299 s'effacent par déformation élastique des parois latérales longitudinales de la cage.When a cage 290 is engaged in a structure 210, the projections 299 are erased by elastic deformation of the longitudinal side walls of the cage.

Celles-ci reprennent leur position dès lors que les saillies 299 ont dépassé les structures 210.These resume their position as soon as the projections 299 have exceeded the structures 210.

Lorsqu'une roulette 280 est usée, il suffit pour changer celle-ci de retirer la cage 290 associée en déformant élastiquement, vers l'intérieur, les saillies 299 précitées.When a caster 280 is worn, it suffices to change the latter by removing the associated cage 290 by elastically deforming, inwards, the abovementioned projections 299.

Bien entendu, la position des alésages 296, 297 et le diamètre des roulettes 280 sont adaptés de telle sorte que les roulettes 280 fassent saillie vers le bas par rapport aux cages 290 pour éviter tout contact direct entre les patins pivotants 200 et le plateau support 10 associé.Of course, the position of the bores 296, 297 and the diameter of the rollers 280 are adapted such that the rollers 280 protrude downward relative to the cages 290 to avoid any direct contact between the pivoting pads 200 and the support plate 10 associated.

A l'utilisation, les axes X-X des roulettes 280 s'étendent radialement par rapport aux axes 0-0 de pivotement des patins.In use, the axes X-X of the rollers 280 extend radially relative to the axes 0-0 of pivoting of the pads.

De façon avantageuse, l'immobilisation des chaussures engagées sur les plots 258 peut être réalisée à l'aide d'un arceau (non représenté sur les figures) comportant un crochet à chacune de ses extrémités, venant en prise avec des structures en dépouille 220 ménagées à l'extrémité avant des patins 200 de part et d'autre des plots 258.Advantageously, the immobilization of the shoes engaged on the studs 258 can be carried out using a hoop (not shown in the figures) comprising a hook at each of its ends, coming into engagement with undercut structures 220 formed at the front end of the pads 200 on either side of the studs 258.

Claims (16)

1. A ski training device of the type comprising :
a generally horizontal support plate (10), oscillating about a longitudinal and generally horizontal principal axis of symmetry (P-P), and
two sole plates (50A, 50B) on which rest the feet of the user, said sole plates being pivotally carried on said support plate (10), respectively on one side and the other of a plane of symmetry passing through the principal pivot axis (P-P) of said support plate (10), about respective auxiliary axes (OA, OB), generally parallel to each other and perpendicular to the upper surface of said support plate (10), characterised by the fact that the auxiliary axes (OA, OB) are longitudinally eccentric on said respectively associated sole plates (50), so that alternating pivoting of said sole plates (50) about their respective auxiliary axes (OA, OB), brought about by the user, is accompanied by an alternating rocking of said support plate (10) about the associated principal axis (P-P).
2. A ski training device according to claim 1, characterised by the fact that the auxiliary axes (OA, OB) are provided in the region of the front end of said sole plates (50).
3. A ski training device according to one of claims 1 or 2, characterised by the fact that the auxiliary axes (OA, OB) are situated at mid-width of said respectively associated sole plates (50), and the width (1) of each said sole plate (50) is less than the distance (d) separating the auxiliary axes (OA, OB).
4. A ski training device according to one of claims 1 to 3, characterised by the fact that each said sole plate (50) is provided with a shoe (C).
5. A ski training device according to one of claims 1 to 4, characterised by the fact that each sole plate (50) is fixed on the support plate (10) by resilient engagement of a pivot pin (80) secured to the sole plate, in a complementary bore (20, 21) arranged in said support plate (10).
6. A ski training device according to one of claims 1 to 5, characterised by the fact that the said support plate (10) is formed of a body of which the upper surface (11) is flat and the lower surface is composed of two relatively inclined planes (14, 15) delimiting a principal longitudinal pivot bearing at the vicinity of their junction.
7. A ski training device according to one of claims 1 to 5, characterised by the fact that said support plate (10) comprises: a generally flat upper web (12) supported by transverse ribs (13) presenting two relatively inclined edges (14, 15) delimiting a principal longitudinal pivot axis in the vicinity of their junction.
8. A ski training device according to one of claims 1 to 7, characterised by the fact that each sole plate (50) comprises : a generally flat body (52), the lower surface (59) of which is provided with a plurality of protrusions (60, 61, 62) intended to slide on said support plate (10) on alternating pivot movements of said sole plates (50), said protrusions limiting the contact surface area between said sole plates (50) and said support plate (10).
9. A ski training device according to one of claims 1 to 8, characterised by the fact that said. device is of thermoplastic material such as polyacetal, and preferably at least partially molybdenum based polyacetal.
10. A ski training devide according to one of claims 1 to 9, characterised by the fact that the angular oscillating movement of the support plate (10) is between 5 and 20° and preferably equal to 10°.
11. A ski training device according to one of claims 1 to 10, characterised by the fact that the angular movement of each said sole plate (50) is between 30 and 80°, and preferably about 55°.
12. A ski training device according to one of claims 1 to 11 combined with one claims 6 or 7, characterised by the fact that said pivot bearing is a ridge (17).
13. A ski training device according to one of claims 1 to 11 combined with one of claims 6 or 7, characterised by the fact that said pivot bearing is a plane (18) generally parallel to the upper surface (11) of said support plate (10).
14. A ski training device according to one of claims 1 to 11 combined with one of claims 6 or 7, characterised by the fact that said pivot bearing is a rounded convex surface (19).
15. A ski training device according to one of claims 1 to 14, characterised by the fact that each said sole plate (50A, 50B) supportingly comprises two abutments (120, 130), the separation of said abutments being adjustable and relatively fixable by a ratchet mechanism.
16. A ski training device according to one of claims 1 to 15, characterised by the fact that each sole plate bears on a support plate (10) by way of rollers (280) rotatably carried in removable cages (290).
EP85401568A 1984-10-10 1985-07-31 Ski-training device Expired EP0178194B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85401568T ATE39847T1 (en) 1984-10-10 1985-07-31 SKI TRAINING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8415543A FR2571265B1 (en) 1984-10-10 1984-10-10 IMPROVED SKI TRAINING DEVICE
FR8415543 1984-10-10

Publications (2)

Publication Number Publication Date
EP0178194A1 EP0178194A1 (en) 1986-04-16
EP0178194B1 true EP0178194B1 (en) 1989-01-11

Family

ID=9308528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401568A Expired EP0178194B1 (en) 1984-10-10 1985-07-31 Ski-training device

Country Status (6)

Country Link
US (1) US4678183A (en)
EP (1) EP0178194B1 (en)
AT (1) ATE39847T1 (en)
CA (1) CA1252486A (en)
DE (1) DE3567378D1 (en)
FR (1) FR2571265B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5078393A (en) * 1989-07-28 1992-01-07 Morasiewicz Kathleen G Foot exercising device
US5127892A (en) * 1990-10-12 1992-07-07 Floyd Sawdon Therapeutic foot and leg exercise device
US5374228A (en) * 1992-06-02 1994-12-20 Nordictrack, Inc. Downhill skiing exercise machine
US9050517B2 (en) 2012-09-05 2015-06-09 Bryan P. Oliver Ski training device and method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964315A (en) * 1959-11-02 1960-12-13 Neil F Dinning Ski-training device
US3207510A (en) * 1963-03-27 1965-09-21 Frederick M Gibson Ski training device
US3374782A (en) * 1965-10-22 1968-03-26 Charles P. Izzo Exercising machine for skiers
US3582066A (en) * 1968-09-27 1971-06-01 Horace Theodore Keryluk Ski trainer and exerciser
US3707283A (en) * 1970-08-10 1972-12-26 Gerald R Cormier Ski board training device
FR2245387A1 (en) * 1973-08-21 1975-04-25 Cretin Gerard Simulator for skiing practice - has a fixed frame with a pivotal foot support mounted on a ball bearing
DE2503728C3 (en) * 1975-01-30 1980-01-17 Albert 4040 Neuss Unsin Downhill skiing exercise device
US4101136A (en) * 1977-01-17 1978-07-18 Corll James A Exercising apparatus
US4396189A (en) * 1981-02-26 1983-08-02 Jenkins G William Exercising machine, skiing teaching machine and skiing simulator

Also Published As

Publication number Publication date
FR2571265B1 (en) 1987-03-20
US4678183A (en) 1987-07-07
FR2571265A1 (en) 1986-04-11
DE3567378D1 (en) 1989-02-16
EP0178194A1 (en) 1986-04-16
CA1252486A (en) 1989-04-11
ATE39847T1 (en) 1989-01-15

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