FR2530153A1 - DEVICE FOR SIMULATION OF SNOW SKIS - Google Patents

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

The present invention relates to a

  simulation device for snow skis.

  Skates and skates are already known, but these wheeled devices are by no means comparable in their behavior to the various existing snow skis. The present invention relates to a wheeled device or ski wheel, which is an exact simulation device for snow skis for initiation as

  for training while providing perfect safety.

  The wheeled ski of simulation of snow skis according to the invention is characterized in that it comprises a frame and a set of two pedal elements, one of the brake, the other of direction, the steering element being supported by the brake element which is itself mounted on a horizontal axis of rotation integral with the frame, the ski being further provided with various associated mechanisms allowing all simulated evolution figures reproducing the figures

evolution of snow skiing -

  According to one embodiment of the invention

  mention, the pedal element is suspended in cradle on the brake pedal element to which the

  shoe articulated between the wheels and closest to the ground.

  Other features and benefits of

  the present invention will emerge from the description which

  FIG. 1 is a plan view from above of a wheeled ski according to the invention, the details of the cradle suspension being not shown for the sake of clarity of the drawing. Figures 2 and 3 are partially side elevated views of the inner side and the outer side respectively of the wheeled ski according to Figure 1; FIGS. 4 and 5 are end and partial sectional views of the rear axle and wheel front axle respectively. FIGS. 6 and 7 respectively show in side elevation and in plan from above the brake pedal element La Figure 8 shows in side elevation the assembly of the brake pedal element and the pedal element; Figures 9 and 10 show in side elevation

  said set of two elements of each end respectively

  vemnent; Fig. 11 is an enlarged plan view of a brake mechanism. Fig. 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;

  Finally, FIG. 16 is a plan view of detail.

  The wheeled ski according to the invention allows to evolve on a varied terrain and on a surface that is not very regular It can be used for hiking

  or with the Vaide of lifts.

  It essentially comprises a frame (C) and a dual pedal including a brake pedal member (F) and a pedal pedal member (D)

supported by said element (F).

  The frame (C) can be made of metal, fiberglass or any other light, flexible material,

  resistant o It consists of three parts: a bumper% 1) -

  a front axle support (2) and a central part (3) providing the support of a rear axle (4) The bumper is fixed by bolts on the front axle support (2) The parts (2) and (3) can be assembled either by bolts or (5) by a lockable hinge to fold the front of the ski down to reduce the length, to facilitate 3.

transportation.

  The frame comprises vertical side portions (6) covered with a friction-reducing smooth material and protecting the wheels (7-7 A) which, thus, can not catch on during the reciprocating movement. In normal position of direct trace, feet apart a few centimeters, the two lateral parts

  (6) are in contact and the two skis form a block, usually

  killing the user at the tight ski position.

  The outer rear part of the frame is indented so as not to hinder the pivoting of the wheels to

outside (fig 3).

  In order to avoid cutting or blocking possible, due to gravel or unevenness of the coating, wheels (7) with a diameter greater than that of the wheels

  rear (7 A) can be mounted at the front of the wheeled ski.

  In addition, to dampen vibrations, reduce weight, improve handling and comfort over a long distance, the wheels can advantageously

  be equipped with tires of all types.

  Given the diameter of the wheels and the search for a better balance, the center of gravity of the skier is lowered by fixing the shoes between

  the wheels, and as close as possible to the ground.

  Therefore, the wheeled ski is relatively long but its size must be compared to that of skis and not to skates or skates whose use

is totally different.

  The rear axle (4) comprises two integral wheels (7 A) with two rims (8-9) bolted to a ball bearing hub (10) or any other system to which a brake disc (11) is attached. ), all

  being supported by a pivoting fork (12) mounted

  even on the back of the frame with, if necessary,

assistance (not shown).

  4. The front axle (2) comprises two wheels (7) secured to a two-piece rim (8-9) bolted to a hub (10) on which are fixed two toothed wheels (13) on which two ratchets (14) act. Any other freewheel system that prevents the ski from retreating can be used. A brake is arranged between the rear wheels, to act, either directly on the central part *

  hub, or on the vertical disc (11) provided for this purpose.

  The wheels being secured, braking

  is performed simultaneously on the two rear wheels.

  Four fixing lugs (15) bolted on the pivoting fork (12) hold the brake which comprises two jaws (16-16 A) with brake lining <17)

  between which the disc (11) rotates on the hub (10).

  The raising of the brake pedal element causes the movement of a right-angled lever (18-19) whose part (19) carries a cam (20). This cam is intended, on the one hand, to push a U-shaped piece (21) which, via axes (22), brings together

  the jaw (16) of the disc, and, on the other hand, taking.

  resting on the workpiece (21), - pushing the jaw (16 A) equally

towards the disc.

  Two return springs (23) return the jaws (16-16 A) to their initial position by sliding guides (24) on an axis (25) whose ends are held by an inner nut (26) and a nut. outside

(27).

  The brake pedal member (F) that supports the steering pedal member (D) pivots about an axis (28) located slightly in front of the vertical

  passing through the heel The position of this axis is adjustable -

  depending on the size of the skier.

  By lifting the end of the boot and pressing on the heel, the brake pedal element assembly (F) steering pedal element (D) is raised

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  in the front; the part situated behind the axis of rotation (28) descends, pulling on a flexible transmission (29) fixed in (30) on the element (F), which transmission acts on the brake lever (18-19) This last lever, in contact with the cam J 20) causes the jaws (16-16 A) to come together, which slow down the rotation of the disc (11) located between the rear wheels (7 A) o During braking, the rear part the pedal is close to the ground It includes a wide -IO rubber pad (31) or other similar material that can, in case of rupture of the flexible transmission, press

  the ground directly and thus act as a backup brake.

  In a very simplified version, the brake can be removed and replaced by direct braking on

floor.

  According to another variant, a brake disc may also be mounted in the center of the front hub (like the disc (11) of the rear hub) with in this case

  a dual control of the brake pedal element (F).

  SS Ur the devices currently known 1 the support on one side of the pad causes the change of direction In accordance with the present invention, the user must seek the elevation of one side of the pedal by moving the two knees tight on the opposite side This movement is identical to that performed on the snow for a catch

of squares.

  When the skier takes the direct descent position, the pedal descends slightly held by guides (32) and lies flat on two tubes (33)

  of the brake pedal spread a few centimeters.

  When the skier wants to go to the

  right, he orients both knees to the right in

  the left side of the pedals, the right side of each

  pedal being supported on the tube (33) corresponding right.

  6 o An axle (34) on which a double transmission (34 A-34 B) 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 double flexible transmission t 34 A-34 B) includes adjustment barrels (36) usable without taking off to obtain a perfectly moving

rectilinear (fig 13).

  1 o S In order to move in a non-reciprocating manner, the pivoting mechanism of the fork is blocked when the ski is behind, weight of the body on the ski before the center of gravity is during this phase on the front part of the fixing the rear ski, the heel being lifted: -z rear part of the pedal lifts, a cam (35) engages in cylindrical guides (37) and blocks the entire steering mechanism, the ski moves in straight line. When the rear ski is brought back to the front, the weight of the body 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 lateral movements allowing turns. In the direct descent position, the weight of the body 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) for allow the rotation of the pedal element

direction (D) on the tubes (33).

  An elastic or spring (40), fixed at (41) to a flange (42) of the brake pedal element (F) pulls upwardly a lower pulley (43) mounted by an axis (44) on a post (45) of the pedal element of

direction (D).

  7. When the side of this pedal is slightly raised, an upper pulley (46) mounted by an axis (47) on the upright (45) leaves the center and tends to move laterally beneath it.

  the action of the elastic element (40) whose tension is

  at its attachment point (41), improving

the operation of the direction.

  A window (48) is made in the flange (42) to allow 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 between them a central part. 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 'element

brake pedal (F).

  It should be noted that a window arrangement (48 A) is also adopted to allow movement of the transmission shaft (34) through a flange (42 A) disposed opposite the flange (42). on the element

brake pedal (F).

  Likewise a lower pulley arrangement (43A) mounted on an upright (45A) of the steering pedal element (D) and associated with a resilient or spring (40A) fixed at (41A) on a flange (42 A) of the brake pedal element (F) is provided at this end of the pedal element assembly (D) and pedal element

brake (F).

  In other words, the pedal element (D) is suspended in cradle on the element

brake pedal (F).

During a descent or a step

  turning on the flat, it is necessary to lift slightly

  In this case, the action of the brake is avoided. 8. A device (50) holds the brake pedal element.

  (F) in 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 down position. This lever mechanism (53) for locking pivot axis (54) is adjustable by tension of a spring (55) connecting the

  levers, depending on the weight of the ski.

  During braking, the axle (52) rises, separates the levers (53) which blocked it, and the element of

  brake pedal (F) is released.

  The shoe must transmit all movements to the braking and steering mechanism

  movement is lateral or anteroposterior.

  In the displacement in alternate step, it is necessary to have some flexibility at the level of the sole of the foot Moreover, the movement must be extended to the maximum An axis of rotation (56) located completely at the end of the shoe allows In addition, the ski is never raised in the alternate pitch but pulled forward looking for the contact of the front wheels with

Ground.

  In the downhill position, the flat foot

  is blocked at the heel by a guide (57) avoiding -

any lateral displacement.

  Snow ski poles with a rubberized or metallic tip

  soil condition, can be used normally.

  The wheeled ski according to the invention, which is a simulation of snow skis, makes it possible to move in a straight line, up, down, brake, turn using the movements of the lower joints of the individual, such as

this happens on the snow.

  His practice improves balance,

  coordination of movements, creates automatisms, facilitates

  both initiation, improvement and training 9. (technical and land) to most of the actions used during ski touring and downhill skiing sessions: no alternative, stakning, stawug, descent, turns ,

scull, slalom.

  The wheeled ski according to the invention offers great safety During the initiation period, in the case where the novice skier takes a too steep recoil position, the brake pedal lifts and the brake comes into action the skier moves towards the front while the ski is blocked As a result, the balance is restored and the fall in

back is avoided.

  To effectively brake, the skier must first place himself in a position identical to that

  he must have when braking to avoid

  balance before that, he can not make mistakes

position during braking.

  It is understood that the present invention

  tion has been described and represented only as a preferred example and that equivalences can be introduced into its constituent elements without, for

frame of said invention.

10.

Claims (8)

  A wheel ski for simulating snow skis, characterized in that it comprises a frame (C) and a set of two pedal elements, one of the brake (F) and the other of direction (D), the steering element (D) being supported by the brake element (F) which is itself mounted on a horizontal axis of rotation (28) integral with the frame (C), the ski being further provided with various associated mechanisms allowing all simulated evolution figures   reproducing the evolution figures of snow skiing.   2 wheeled ski according to claim 1, characterized in that the frame (C) comprises at least one central portion (3) carrying the support of a rear wheel (4) of wheels <7 A) and articulated to this part central, a front axle carrier <2) of wheels (7) advantageously of   larger diameter, the part (3) being laterally covered   green of a friction-reducing material and protecting the wheels (7 A) of the rear axle, which can pivot freely on the outside due to an indentation made   in the frame, the rims of all the wheels (7-7 A) with tire   Furthermore, the materials are advantageously made in two parts. 3 wheeled ski according to any one of   1 and 2, characterized in that the element of   pedal (D) is suspended in a cradle on the brake pedal element (F) on which the articulated shoe bears   (56) between the wheels and closest to the ground.   4 Wheeled ski according to any one of   Claims 1 to 3, characterized in that pulleys (43)   (43 A) associated with resilient means (40) <40 A) at   attached to the element (F) perform the cradle suspension 'wheeled ski according to any one of   Claims 1 to 4, characterized in that two means   (33) arranged longitudinally on the top of the   11. ment (F) allow the element (D) to rest, ie flat   on these two means, either on one of them only.   6 Wheeled ski according to any one of   Claims 1 to 5, characterized in that a mechanism   16-16 A and 11) is provided on at least one rear wheel set (7-7 A), a flexible control (29) connecting   said mechanism to the brake pedal element (F).   7 Wheeled ski according to any one of   Claims 1 to 6, characterized in that a heel (31)   likely to come into direct contact with the soil is expected   under the brake pedal element (F).   8 wheeled ski according to one that anyone   Claims 1 to 7, characterized in that pivoting means   (12) carries the rear wheel set (7-7 A), a flexible dual control connecting said means (12) to the pedal element direction (D).   9 Wheeled ski according to any one of   claims 1 to 8, characterized in that an associated mechanism   Cié (35) (37) allows, depending on the position of the element (F) and the entire element (F) element (D), to block or release the pivoting means (12) Ski-wheeled according to the any of the   Claims 1 to 9, characterized in that an associated mechanism   (46) (49) allows, by pressing the element (F) in (49), to   improve the ski's direction when the element (D) is inclined on one side.   11 Wheeled ski according to any one of   Claims 1 to 10, characterized in that a mechanism   associated (50) bearing on part of the frame allows, by clamping a part (52) attached to the element (F), to maintain the element in horizontal position during certain evolutions.