FR2634135A1 - PAIR OF SKIS, PARTICULARLY FOR ALPINE SKIING - Google Patents

Abstract

Pair of skis, in particular for alpine skiing, characterized in that, on each of the two skis is placed at least one reinforcing band 1, 2; 3, 4 between the binding 5 and the front contact line 6 and / or between the binding 5 and the rear contact line 7, perpendicular to the longitudinal axis 8 of the ski, the reinforcing bands 1, 2; 3, 4 extending between the two longitudinal edges 9, 10, and being placed at one of their ends closer to the binding 5 than at their other end, and in that the arrangement of the bands 1, 2; 3, 4 of the left ski G has mirror symmetry with respect to the arrangement of the bands 1, 2; 3, 4 of the right ski D.

Description

The present invention relates to a pair of skis, in particular for

Alpine skiing, a strip in

  less being placed on the ski surface and / or inside

each ski.

  Due to their symmetrical construction with respect to the median axis of the ski, most skis have the same angle of rotation in both directions, with respect to

  the longitudinal axis of the ski, under the same load.

  It is known to have reinforcing elements, in particular reinforcing bands or reinforcing plates in the raised area of the ski and in the area

  end, for example by the German patent application

  mand published before examination 20 25 622.

  We also know a multilayer ski in construction

  sandwich sandwich which is designed so as to present different force reactions, depending on the direction of rotation, at least one sole and / or the core being in

  several parts across the width of the ski, and the different

  your parts of the sole or of the core having different shear modules and / or the sole or of the core having different thicknesses over the width of the ski, and the different parts of the sole or of the core being arranged on the width of the ski so that the

  shear modules of the successive parts increased

  tent or decrease over the width of the ski, so that the two longitudinal parts of the ski have different torsional strengths. This construction is such that the shear moduli of the sole and / or of the core are greater in the direction of the inside edge of the ski, than in the direction of the outside edge of the ski. An edge pressure distribution is thus obtained on the inner edges, which have an increased edge pressure in the front part and the rear part of the ski with respect to the external edge,

  when the ski is placed on the edges.

  These known embodiments have the disadvantage

  can not be applied to all types of ski construction because their manufacture is

  too complex and therefore storytelling for production

  tion in large series: or the disadvantage that the skis are not interchangeable and therefore cannot be used in the same way by beginners and professionals.

  The object of the present invention is therefore to achieve

  ser a pair of skis, in particular for alpine skiing, not presenting the disadvantages mentioned above, and which offers better characteristics of guidance of

  increased pressure on the edges, while guaranteeing

  weaving more precise driving, even at high speed,

  and the greatest possible security.

  This object is achieved according to the invention in that on each of the two skis is placed at least one strip of

  reinforcement which is made of a hard material, in particular

  a metal, preferably aluminum, between the fixing and the front contact line and / or between the

  fixing and rear contact line, perpendicular-

  ment to the longitudinal axis of the ski, the reinforcing bands extending between the two longitudinal edges, and being placed at one of their ends closer to the binding than at their other end, and in that the

  arrangement of the bands of the left ski presents a sym-

  sorts in mirror with respect to the arrangement of the bands of the

straight ski.

  We can also have two reinforcement strips or

  more which are preferably parallel.

  Advantageously, the reinforcing bands are glued or assembled to the surface of the ski, preferably using an elastic material, for example

  an interlayer of rubber.

  The essential characteristic of the present invention is that the reinforcing strip (s) can be mounted inside the ski, preferably

above the neutral zone.

  According to another characteristic of the invention, the reinforcement bands of the rear part and the reinforcement bands of the front part have symmetry in

  mirror with respect to a median transverse axis.

  This arrangement of the reinforcing bands has the effect of increasing by one side, as desired, the distribution of the pressure on the edges, which gives inter alia a different behavior of the skis with regard to their handling. By exchanging the two skis, you can meet the requirements of a professional or a

  average skier, in particular, you can veer easier-

  and more precisely, either in the manner of a

  competition, or less tightly.

  Various other features of the invention

  emerge from the detailed description which follows. A way

  embodiment of the invention is shown by way of nonlimiting example in the appended drawings, to which: FIG. 1 is a schematic top view of the pair of skis according to a first embodiment, FIG. 2 is a top view schematic of the pair of skis according to a second embodiment which results from the exchange of the two skis of FIG. 1,

  Figure 3 shows the distribution of the

  sion on the left edge of the ski, when a single reinforcement strip is placed in the front part of the ski, and

  Figure 4 shows the distribution of the

  sion on the left edge of the ski, when two bands of

  reinforcement are placed in the front part of the ski.

  Figure 1 shows a pair of skis consisting of a left ski G and a right ski D. In this embodiment, two reinforcing bands 1, 2; 3, 4 parallel to each other are placed respectively in the front part 13 and in the rear part 11 of the skis. These reinforcing bands have a mirror symmetry with respect to a transverse axis 12 median. In addition, the arrangement of the bands 1, 2 of the left ski G has a mirror symmetry with respect to the arrangement of the bands 3, 4 of the right ski D. The two reinforcement bands 1 of the front part 13 of the left ski G according to Figure 1, extend perpendicular to the longitudinal axis 8 of the ski, between the binding 5 and the front contact line 6, and by their left ends, which start from the left edge 9 of the ski, are closer to the line front contact 6 only by their straight ends which end on the right edge 10 of the ski. Similarly, the reinforcement strips 2 of the rear par 11 of the ski, between the binding 5 and the rear contact line 7, are brought closer to the rear contact line 7 by their left ends than by their right ends. The reinforcement bands 3,4 of the right ski D likewise have

mirror symmetry.

  Figure 2 shows a pair of skis obtained

  by exchanging the two skis of figure 1.

  FIG. 3 represents the distribution of the pressure on the left edge 9 of the ski, curve 1 relating to the arrangement of a single reinforcement strip 1 in the front part 13 of the left ski G, for an angle of inclination of the ski 15, under a load of 10 kp in the area of the binding 5, and curve 2 at the disposal of a single reinforcement band 3 in the front part 13 of the right ski D, also for an angle of inclination of the ski of 15 and a load of 10 kp in the area of the binding 5. The curves III and IV each represent the comparative curves for the left ski G and the right ski D respectively, with the same parameters as above,

without reinforcement strip.

  FIG. 4 represents the distribution of the pressure on the left edge 9 of the ski, the curve I ′ corresponding to the arrangement of two reinforcement strips 1 in the front part 13 of the left ski G, with the same parameters as those in FIG. 3, and the curve 2 'at the disposal of two reinforcement strips 3 in the front part 13 of the right ski D. The curves 3' and 4 'are at

  new comparative curves without reinforcement strips.

  As shown in Figures 3 and 4, there is a higher pressure on the edges (see I, I ') when the reinforcement strip (s) 1, 3 of Figure 1 is (are) closer to the line front contact 6, on the side that is measured - in this case, the left side. At the points where the partial pressure on the edges is increased, the ski becomes more adherent, that is to say that the turns can be taken tighter, even at high speed. Consequently, depending on whether the increase in partial pressure on the inner edge or on the outer edge is more or less close to the binding 5, the mode of descent can be varied. By thus exchanging the two skis of FIG. 1 (see FIG. 2), one obtains, by this arrangement of the bands or this increase in pressure on the edges, a pair of skis which is

  adapted to the requirements of a competitive skier.

  The increased pressure on the edges compared to a conventional ski without reinforcing strip leads to the essential characteristics for a skier, already

  mentioned above, such as a better possibility

  guide tee, i.e. easier and more precise driving, linked to greater safety for the

skier, even at high speed.

  The interchangeability of skis, associated with the

  different behavior that results, presents natural-

  a large number of advantages for mass production in terms of manufacturing technique

  as on the resulting production costs.

  The embodiments represented in FIGS. 1 and 2 may naturally present variants and be combined, to obtain more effective results,

in the context of the invention.

Claims (5)

  1. Pair of skis, in particular for alpine skiing, at least one strip being placed on the ski surface and / or inside each ski, characterized in that at least one strip is placed on each of the two skis reinforcement (1,2; 3,4) which is made of a hard material, in particular a metal, preferably aluminum, between the fixing (5) and the front contact line (6) and / or between the binding (5) and the rear contact line (7), perpendicular to the longitudinal axis (8) of the ski, the reinforcement strips (1,2: 3,4) extending between the two longitudinal edges (9 , 10), and being placed at one of their ends closer to the fixing (5)   that at their other end, and in that the provision d-   es bands (1,2; 3, 4) of the left ski (G) has a mirror symmetry compared to the arrangement of   bands (1,2; 3, 4) of the right ski (D).   2. Pair of skis according to claim 1, characterized in that two or more reinforcing bands (1,2; 3,4) are provided which are preferably parallel between them.   3. Pair of skis according to claim 1, characterized in that the reinforcing bands (1,2; 3,4) are glued or assembled to the surface of the ski, preferably using an elastic material, by example   an interlayer of rubber.   4. Pair of skis according to one of claims   1 and 2, characterized in that the reinforcing strips   (1,2: 3,4) are mounted inside the ski, preferably rence above the neutral zone.   5. Pair of skis according to one of claims   1, 2 and 4, characterized in that the reinforcing bands (2,4) of the rear part (11) of the ski and the reinforcing bands (1, 3) of the front part of the ski (13) are arranged according to mirror symmetry with respect to an axis transverse median (12).