FR2585260A1 - Ski for grassy pistes and slopes - Google Patents

Abstract

The invention relates to a ski permitting skiing on grassy slopes, comprising castors, permitting rolling and sliding of the ski. It consists of a chassis forming the ski 1 having housing recesses 3 in which castors 4 on a shaft are fastened. The device according to the invention is intended to permit a form of skiing on grass which is as close as possible to skiing on snow.

Description

 The present invention relates to a ski for a track without snow and in particular for a track covered with grass. The system allows skiing on all grassy slopes or artificial tracks, cross-country skiing on meadows.

 A / Description: the ski consists of a chassis in the shape of a piste ski (snow), long to short, with binding of the classic type (snow ski binding). The ski has several rollers according to the chosen length, which are incorporated in the recessed part, in the ski (see diagram) and mounted on axes fixed to the ski.

 The rollers are mounted on ball bearings, or the like (metal or plastic and synthetic element).

B / The system may interest
10 All skiers wishing to practice a form of skiing on grass, as close as possible to snow skiing.

 20 Ski resorts wishing to offer an additional version of skiing, especially in summer, sports clubs, ski teachers, etc.

 30 Cross-country skiers, for training on long courses in meadows in summer, in mid-mountain or plain, by reducing the system to the dimensions of a cross-country ski.

 By way of nonlimiting example, a prototype will be described which has been produced according to the invention, starting on the basis of a pair of skis (Dynastar) of length 1.80 m (1), width 7 to 8, 5 cm, thickness 0.6 to 1.5 cm, made of fiberglass, metal and plastic, including the usual accessories (fixings) (2).

 At the rear, at a distance of about 30 cm from the heel of the ski, an opening (3) is made: dimensions: 3 cm x 5.5 approximately, intended to receive a wheel (4), held by an axis (5) attached to the ski. At the front of the ski two openings (7) and (6), similar to the opening (3) were made at distances of: 20 cm and 70 cm respectively from the front (tip) of the ski, and comprising casters arranged in the same way as caster (4).

 In another particular case, a device with 3 casters was built, but where the front caster is wider than the other 2 (7t): dimensions 4.5 cm x 5.5 cm.

 Figure 3 shows the detail view of the front caster and Figure 4 that of the other 2 casters.

Description casters
- the castors of dimensions: oe 4.5 x 5.5 cm for castor (7 ') and 5 x 3.5 approximately for casters (4), are made of plastic and / or rubber, and are mounted on bearings with balls and fixed on a metal axis (5) about 0.5 cm, in the core of the ski, that is to say in the opening (3) made in the ski.

 - the rollers are fixed to the ski, by means of plates. removable, screwed on and under the ski, which hold the axis of the rollers in the ski friend, while strengthening the non-recessed side parts, on either side of the opening (3). The assembly can be dismantled, it goes without saying that the number of casters is not limiting.

Skiing for snowless tracks with rollers is cara ~ terized by the fact that the rollers are placed in recesses in the ski.

The ski has 2 wheels on the front and 1 wheel on the back, the 3 wheels being aligned.

The 1st roulette is wider than the others.

The rollers on the axis are included in the axis of the ski, these rollers being positioned in a tangent manner, up to very projecting from the sole of gliding, this making it possible to improve the gliding and the maneuverability of the ski.

The axis of the casters is integrated into the friend of the ski.

The rollers are fixed to the ski by screwed plates (this not being limiting), or any suitable support of the axis of casters, removable or fixed, reinforcing the fragile area, on either side of the recesses, practiced in the ski and / or inclusion of the casters in the ski, by fixing the axis of these casters in the core of the ski, medium of resin or any other material capable of welding the caster axis of the ski, without hampering the flexibility and strength of the ski, but on the contrary, to strengthen them.

The rollers are mounted on ball bearings or the like, this not being limiting, the rollers can be mounted on any other suitable bearing, consisting of metal, or plastic and synthetic element.

The rollers are of cylindrical shape, this not being limiting, the rollers can also be of ovoid shape, spherical cylindrical convex (barrel shape) cylindrical concave (spinning top shape).

The rollers are made of plastic and rubber material, this is not limiting, the rollers can be made of any suitable material, metal or plastic and synthetic element.

The sliding surface of the ski or ski sole is made of material similar to the sole of a snow ski, this not being limiting, the ski sole can be made of any suitable material, of metal or plastic element and synthetic, allowing maximum rolling and sliding on any grassy ground, various soils, mixed (grass + snow patches) or artificial synthetic tracks.

Claims (10)

1) Ski (1) for a snowless track comprising rollers (4) and (7 '), characterized in that the rollers are placed in recesses (3), (6) and (7), used in skiing . 2) Ski (1) according to 1, characterized in that the ski has 2 rollers (7 ') and (4) at the front and 1 roller at the rear (41, the 3 rollers being aligned. 3) Ski (1) according to 1 and 2 characterized by the fact that the first wheel (7 ') is wider than the others. 4) Ski (1) according to any one of the preceding claims, characterized in that the rollers (4) and (7 ') on the axis (5) are included in the axis of the ski, these rollers being positioned tangentially. , up to very loose of the gliding sole, this making it possible to improve the gliding and the maneuverability of the ski. 5) Ski (1) according to any one of the preceding claims, characterized by the position of the axis (5) of the spheres which integrate into the ski friend. (5, Plate 2/2). 6) Ski (1) according to 1 or 2 characterized in that the rollers (4) and (7 ') are fixed to the ski by screwed plates, or any suitable support for the axis of the rollers, removable or fixed, which fragile area, on either side of the recesses (3), (6) and (7) formed in the ski and / or inclusion of the rollers in the ski, by fixing the axis (5) of these rollers in the 'oar of the ski by means of resin or any other material capable of welding the roller axis of the ski, without hampering the flexibility and solidity of the ski, but on the contrary, of strengthening them. 7) Ski (1) according to 1 and 2 characterized in that the rollers (4) and (7 ') are mounted on ball bearings or the like, the rollers being able to be mounted on any other suitable bearing, consisting of metal element , or plastic and synthetic. 8) Ski (1) according to 1 and 2 characterized in that the rollers (4) and (7 ') are of cylindrical shape, the rollers can also be of ovoid, spherical, cylindrical convex (barrel shape) concave cylindrical shape (top shape). 9) Ski (1) according to 1 and 2 characterized in that the rollers (4) and (7 ') are made of plastic and rubber material, the rollers can be made of any suitable material, metal or plastic element and synthetic. 10) Ski (1) according to 1 and 2 characterized in that the sliding surface of the ski or ski sole is made of material similar to the sole of a snow ski, the ski sole can be made of any material adequate, of metal or plastic and synthetic element, allowing the maximum rolling and sliding on any grassy ground, various soils, mixed (grass + snow patches) or artificial synthetic tracks.