FR2609407A1 - G.R.S. rectilinear guide for skis - Google Patents

Abstract

Rectilinear guide device for skis (G.R.S.). The invention relates to a device which keeps the skis parallel while permitting the basic movements of techniques for skiing. It consists of two similar movable elements, elements 1 - 2 in the form of an H sliding in bearings, elements 3 - 4, rendered integral with the skis. The bearings 3 - 4, which are integral with the H 1 -2 and fastened to the skis by a removable system, act as stops for the movable elements 1 - 2. When the user is skiing, the skis can have independent edge gripping and be positioned in front, behind and above with respect to each other, as the skier requires. The device according to the invention is intended particularly for skiing.

Description

DESCRIPTION
The present invention relates to a device, called the H system, for joining two skis together while allowing all the movements between the skis and the movements specific to each ski, necessary for the full practice of skiing techniques.

 The device according to the invention allows all the fundamental movements of the skis between them and specific to each, namely offset in advance, in height, grips of squares and transfer of the skier's weight from one ski to another and from before back keeping the skis in parallel longitudinally.

 The device remedies the anxiety and the difficulty of mastering the parallelism of skis.

The device has two mobile connecting elements (Figure 8 elements
I and 2) H-shaped sliding in bearings (Figures 6-8 elements 3.4) fixed on each ski. Each bar or tube (figure 8 element 2) of the H in rigid or flexible tube or bar slides parallel to the skis in the bearings, the bar (fiv. 8 element I) of the H, curved blade, flexible and resistant to deformation constitutes the connection between the two skis; it (1) is perpendicular to the length of the skis.

 Two mobile H systems are attached (fig. 1), one on the front of the skis (towards the tip), the other on the back (towards the heels). The device allows each ski to take independent squares and to position itself on demand forward, backward, in height relative to each other.

 The dimensions of the H, the elliptical shape of the horizontal blade (1), the size of the bearings (3) and their height relative to the top of the ski vary for senior devices (men, women) and children to favor a skiing technique depending on the size, level of the practitioner, snow and slopes.

 According to a preferred embodiment: a) the curvature of the horizontal connecting blade (1), produced here in laminated plastic (or quevelar) is calculated to correspond to an ellipse whose two foci, represented by the axis of the sliding rods (2), have a gap which corresponds to the gap between the condylar heads of the user's femurs, i.e. for the width of the H (gap between the axes of the sliding rods) 20 to 25 cm in adult size and 15 to 2G cm in size b) the length of the sliding rods (2) is 30 to 40 cm adult and 20 to 3G cm child including 3 to 6 cm adult and 2 to 4 cm child length reserved in the middle for fixing the blade connecting (1) the rods (2) are flexible and resistant. c) The height from the top of the ski of the bearing axis (3.4) is between the two horizontal and parallel planes passing respectively through the top of the ski and the point of the ankle joint, closest to the knees the r otule of a skier placed on the ski and ready to ski. d) the diameter and thickness of the bearings are reduced to a minimum as a function of the resistance possibilities of the materials used.

 According to a variant, the device may be a rod or bar having at each end a ball joint (see automobile steering ball joint). Each ball joint is fixed to each ski top, the rod directed horizontally relative to the top of the skis and perpendicular to the length of the skis.

 The method of fixing the bearings (or base for the ball joints) can be permanently on the skis (screwing, gluing) or integral with the device (1.2) and removable on the skis.

 According to a preferred embodiment, the bearings are integral with the device (1.2) to facilitate the use of the device of the invention.

The accompanying drawings illustrate the invention
Figure I shows a top view of the device placed on two skis.

 Figures 2 and 3 show in rear view the vertical movements of the skis relative to each other.

 Figure 5 shows a side view of the torsional movements of the blade (1) allowing the evolution of the skis relative to each other in the vertical plane.

 Figure 4 shows an element of the device fixed on skis and ready to slide in the horizontal plane.

 Figure 6 shows in section AA the shape of the bearings and generally a variant of a removable fixing system of the bearings on the skis.

 The device shown in FIG. 8 comprises a rigid and flexible blade (I) connecting two rigid and flexible rods (2), the assembly forming an H-shaped figure. Four bearings (3.4) are placed on the rods (2). the bearings (3.4) are integral with an element (5) which removes the fixing of the bearings on the skis by means of a system (6.7.8.9). In the embodiment according to Figures 4 and 6 the blade (1) has washers at its attachment to the rods (2) which abut on the bearings (3.4) at the end of sliding.

Claims (7)

1) Connecting device between two skis comprising two similar elements  (fig. n08) characterized in that each element having two axes  parallel to each other connected in the middle by an arch (n 1.2), grout  parallel to the skis in four landings (n 3.4), two per axis, made integral with the skis. Each element represents a shaped figure  by H. 2) Device according to claim (1) characterized in that the system H (fig n 8 pitea is removable 3) Device according to claim (1) and (2) characterized in that the  bearings (n 3.4) are independent of each other and movable on the axes (n 2  and made integral with the H system by end caps (key 44) on the ends  tees of each axis. 4) Device according to claims (1) (2) and (3) characterized in that the  sliding movement front and rear of axes (n o) is limited  by the bearings (key 3.4) serving as a stop for the arch (key 4).  by a removable coupling system.  the bearings (n 3.4) integral with the H system are fixed on the skis (n 42)  all 5) Device according to claims (1) (2) (3) and (4) characterized in that 6) Device according to any one of the preceding claims, characterized in that the hoop (n i1) is flexible and flexible in shape,  rounded and elliptical and at a length of 15 to 30 cm and a width of 3 to  6 cm. 7) Device according to any one of the preceding claims, characterized  in that the axes are flexible and flexible and each slide on a  length from 20 to 15 cm.