EP1808202A1 - Improvement for a snowboard - Google Patents

Abstract

In a snow gliding board (1), with a vertical plane of symmetry, a main (base) part (2) with a longitudinal rib formed by two side clearances (5a, 5b), opening outwards and upwards at the sides (but not donwards) to form a lower side edge and a complementary side element (3a, 3b) fixed to each clearance, the side elements are reinforcing elements extending transversely and longitudinally at constant thickness (e), at least in the assembly zones with the base.

Description

The present invention relates to a snow board on snow such as a ski, a monoski, a surf, or other. It relates more particularly to an improvement relating to a gliding board comprising a base, on which is fixed at least one complementary element.

The practice of boardsports is becoming more and more followers and has evolved terribly in recent years with practitioners increasingly demanding about the quality of products. This is, for example, the case of snow sports.

Numerous models of gliding boards, and in particular skis, which are constituted by an elongated beam whose front end is raised to form the spatula, while the lower surface comprises a sliding sole bordered by metal edges.

Despite all the efforts made by the manufacturers to satisfy the customers, there is not, to date, ski combining perfectly the comfort of use with satisfactory characteristics of behavior in the trajectories, whatever the type of ground, and whoever the user is.

The present invention provides multipurpose skis consisting of a base and at least one additional reinforcing technical element, including the cooperation of shapes, dimensions and structure, gives the entire ski its necessary characteristics, both comfort and skiing.

Thus, skis of the type mentioned in the previous paragraph are known to be disclosed by the French patent applications published under the numbers FR 2,854,333 , FR 2,834,906 . But the manufacture of such skis requires the assembly of complementary elements on the base, and given the geometry of the complementary elements assembly of the complementary elements generally made by hot welding, it is difficult to ensure uniformity of the assemblies and the reproducibility of ski performance.

The present invention proposes to overcome the disadvantages mentioned above.

Thus, the gliding board on snow such as a ski, a monoski or a surf, of vertical plane of general symmetry, comprising a main part, said body or base, constituted by a longitudinal rib formed by two lateral recesses which open laterally. outwards and upwards, while they do not open downwards, to form a lower side edge, while in each of the clearances is fixed a lateral complementary element respectively, characterized in that the lateral complementary element is a reinforcing technical element which confers with their cooperation with the base the technical characteristics (rigidity, flexion, torsion etc.) necessary for the practice of the ski, and in that said complementary element extends laterally and longitudinally according to a thickness (e) substantially constant, at least in the assembly areas with the base.

According to a complementary feature, the width of the complementary element is the same over its entire length.

According to an alternative embodiment, the width of the complementary element is variable longitudinally, for example to be such that the width of the complementary element is wider at the center of the ski, and gradually decreases, towards the front and / or towards the rear.

According to another complementary feature, the cross section of the complementary element has at least a portion of its length, or its entire length, the shape of a rectangle, or substantially the general shape of an S, or a curved shape convex towards the center of the base, or a curved shape convex towards the outside.

According to another variant, the shape of the profile in a cross section varies, for example such that, in the region of the base of the pad, the cross section has the shape substantially of S, while-in front and at the back the section of the profile is rectangular.

Other features and advantages of the invention will become apparent from the description which follows with reference to the accompanying drawings which are given by way of non-limiting examples.

• La figure 1 est une vue de dessus du ski, c'est-à-dire de son embase avec ses deux éléments complémentaires latéraux.
• La figure 2 est une vue latérale du ski, c'est-à-dire de son embase avec ses deux éléments complémentaires latéraux.
• La figure 3 est une vue en perspective de l'embase avant la mise en place de ses éléments complémentaires latéraux.
• La figure 4 est une vue en perspective du ski, à savoir de l'embase avec ses éléments complémentaires latéraux.
• Les figures 5A, 5B, 5C, 5D, 5E sont des vues en coupe selon A-A, B-B, C-C, D-D, E-E, à plus grande échelle, de l'embase seule avant l'assemblage des éléments complémentaires latéraux.
• Les figures 6A, 6B, 6C, 6D, 6E, sont des vues en coupe selon A-A, B-B, C-C, D-D, E-E, à plus grande échelle, du ski, avec les éléments complémentaires latéraux, mis en place sur l'embase.
• Les figures 7, 8, 9, et 10, illustrent en coupe transversale des variantes d'exécution des éléments complémentaires latéraux.
• Les figures 11A, 11B, 11C, 11D, 11E sont des vues similaires aux vues des figures 6A, 6B, 6C, 6D, 6E, mais illustrant une variante de réalisation selon laquelle, la forme de la section transversale des éléments complémentaire varie longitudinalement.
• Les figures 12a, 12b, 12c et 13 sont des vues d'un ski en coupe transversale selon quatre variantes d'exécution.
• Les figures 14A, 14B, 14C, 14D, 14E sont des vues similaires aux vues des figures 6A, 6B, 6C, 6D, 6E, mais illustrant une autre variante de réalisation selon laquelle, la forme de la section transversale des éléments complémentaire varie longitudinalement, selon une autre variation.

FIGS. 1, 2, 3, 4, 5A, 5B, 5C, 5D, 5E, 6A, 6B, 6C, 6D, 6E show a first embodiment of the invention.

• Figure 1 is a top view of the ski, that is to say, its base with its two lateral complementary elements.
• Figure 2 is a side view of the ski, that is to say, its base with its two lateral complementary elements.
• Figure 3 is a perspective view of the base before the establishment of its lateral complementary elements.
• Figure 4 is a perspective view of the ski, namely the base with its lateral complementary elements.
• FIGS. 5A, 5B, 5C, 5D, 5E are sectional views along AA, BB, CC, DD, EE, on a larger scale, of the base alone before assembly of the lateral complementary elements.
• FIGS. 6A, 6B, 6C, 6D, 6E, are sectional views along AA, BB, CC, DD, EE, on a larger scale, of the ski, with the lateral complementary elements, placed on the base.
• Figures 7, 8, 9 and 10 illustrate in cross section alternative embodiments of the lateral complementary elements.
• FIGS. 11A, 11B, 11C, 11D, 11E are views similar to the views of FIGS. 6A, 6B, 6C, 6D, 6E, but illustrating an alternative embodiment in which the shape of the cross-section of the complementary elements varies longitudinally.
• Figures 12a, 12b, 12c and 13 are views of a ski in cross section according to four alternative embodiments.
• FIGS. 14A, 14B, 14C, 14D, 14E are views similar to the views of FIGS. 6A, 6B, 6C, 6D, 6E, but illustrating another variant embodiment in which the shape of the cross-section of the complementary elements varies longitudinally , according to another variation.

The ski with the general reference (1) is an elongated beam having a median vertical (P) plane of general symmetry whose front is raised to form the spatula (8).

The ski (1) is constituted by a main part which we will call body or base (2) on which at least one complementary element is fixed at least in the region of the shoe (4), and according to the preferred embodiment, two lateral complementary elements (3a, 3b).

It is the combination of the base (2) with its complementary elements (3a, 3b) which gives the ski (1) its characteristics necessary for the practice of skiing.

The base (2) is the element in contact with the snow and has the shape of an elongate beam having on its lower surface a sliding sole (6) laterally bordered by lateral edges (7a, 7b) of metal.

The base (2) is an elongate beam whose front end is raised to form the spatula (8) of the ski. This base (2) has its own distribution of thickness, coastline, width and stiffness and can be of all types and constitutions.

Thus, the elongate beam constituting the base (2) can be of all types of designs such as those known to date as, for example, sandwich type, box type, or shell type, or even the type combining shell and side fields, taken alone or in combination, or mixed and consisting of a set of elements and components known in themselves. Note however that the upper surface of the base is advantageously made by a thermoplastic film, and to allow the assembly by gluing of complementary elements, as we will see later in the description.

According to a characteristic of the invention, the base (2) comprises lateral recesses (5a, 5b) in each of which is fixed one of the corresponding lateral complementary elements (3a, 3b). Thus, the base (2) comprises a left lateral clearance (5a) in which is fixed the left lateral complementary element (3a), and a right lateral clearance (5b) in which is fixed the right lateral complementary element (3b). ).

Note that each of the side clearances (5a, 5b) advantageously opens laterally outwards (EX) and upward (HA), while it does not open downwards (BA).

Note that the width (L1) of the clearances is advantageously longitudinally variable, to be wider in the center (40) of the ski (1), and advantageously decrease progressively, forward (AV) or rearward (AR), and advantageously forward (AV) and backward (AR). But it could of course be otherwise, that is to say that the width (L1) could be constant throughout its length.

Similarly, the height (H1) of the fields (50a, 50b) of the base (2) is advantageously longitudinally variable, to be greater in the center of the ski, and advantageously decrease progressively towards the front (AV) or towards the rear (AR), and advantageously forward (AV) and rearward (AR). But it could of course be otherwise, that is to say that the height (H1) fields could be constant throughout its length.

The two lateral complementary elements (3a, 3b) consist of elongated profiles, which extend transversely and longitudinally, at least in the assembly areas with the base (2), according to a substantially constant thickness (e). By substantially constant is meant a thickness that does not vary by plus or minus 20%. This means that the thickness (e) of the cross section of the complementary element is substantially constant, and that likewise the thickness (e) of the longitudinal section of the complementary element is substantially constant and of course equal to the thickness of the cross section.

FIGS. 1, 2, 3, 4, 5A, 5B, 5C, 5D, 5E, 6A, 6B, 6C, 6D, 6E, illustrate a first embodiment according to which the complementary elements (3a, 3b) are profiles of which the cross section is rectangular in shape and the profile extends longitudinally along the same section, that is to say the shape of the cross section is identical over the entire length of the profile, to be of rectangular section over the entire length . Note that according to this embodiment the width (L2) of the profile is variable. Thus, in this embodiment the width (L2) of the lateral complementary elements (3a, 3b) advantageously decreases progressively from the central zone (40) towards the front (AV) and towards the rear (AR). Of course it could be otherwise, for example such that the complementary elements are wider at the front than at the rear, with for example a gradual decrease in width from front to rear, or such that the complementary elements are wider at the rear than at the front, with for example a gradual decrease in width from the rear to the front. Moreover, the complementary elements could be such that their width is greater at the front and / or at the back while the part central would be of lesser thickness. Of course, the width of the complementary elements could be constant instead of being variable.

According to the embodiment previously described the shape of the cross section is rectangular, but it could be otherwise. As for example according to the variants represented by FIGS. 7, 8, 9, 10.

According to the variant of Figure 7, the cross section of the complementary element has at least a part of its length, see its entire length substantially the general shape of an S with a lower lateral part (PI) connected to a part superior (PS) by a vertical or angled intermediate link (PIL).

According to the variant of Figure 8, the cross section of the complementary element has at least a part of its length, see its entire length a convex curved shape towards the center of the base.

According to the variant of Figure 9, the cross section of the complementary element has at least a portion of its length, see its entire length a curved shape convex to the outside.

According to the variant of FIG. 10, the cross-section of the complementary element has, at least over a part of its length, to see its entire length a shape constituted by two rectangular parts (30, 31) connected by a projecting central part ( 32).

It is noted that for these variants and according to the invention that the thickness (e) of the profile is constant in the bonding areas (Z) on the base.

It has been seen previously that the shape of the cross section of the complementary elements was constant, namely the same over the entire length of the profiles, but it could be otherwise, as for example according to the variant of FIGS. 11A, 11B, 11C, 11D , 11E

According to this variant, the shape of the profile in a cross section varies. Thus, in the region of the pad (4) of the base, the cross section has the shape substantially of S, while at the front and rear section of the profile is rectangular. Of course, the thickness (e) of the cross section of the complementary element is substantially constant, and that the thickness (e) of the longitudinal section of the complementary element is substantially constant and of course equal to thickness of the cross section.

As for the base (2), each of the lateral complementary elements (3a, 3b) has its own configuration and structure. It has its own stiffness distribution and can be of all types of constructions. Thus, said complementary elements (3a, 3b) may be formed by a one-piece element made of a single material. But it can be of an entirely different design as, for example, be of composite material, and in particular include on its lower surface a thermoplastic matrix film, to allow assembly.

It will be noted that the length (L3) of the lateral complementary elements (3a, 3b) may extend over all or part of the length of the base. It may be, for example, equal to or greater than 30% of the length (L4) of the base (2), such as, for example, between 30% and 90%. Thus, the length (L3) of the complementary elements may have, for example, a length of between 50 and 150 centimeters, for a ski having a length of 170 centimeters.

The two complementary lateral elements (3a, 3b) advantageously have the same length, but may have different lengths.

It has been understood that, in the zone occupied by the lateral complementary elements, the base (2) comprises a longitudinal rib (11) bordered by the two lateral recesses (5a, 5b), the width (L5) of which is smaller than the width (L6) of the lower part (12) of said base (2). Each of the lateral clearances is therefore limited towards the plane of symmetry (P) by the longitudinal rib (11) and downwards by the lower part (12) of the base which comprises the metal edges (7a 7b) and the sole of slip (6).

It will also be added that the ski (1) may be such that the left lateral complementary element (3a) is different from the right lateral complementary element (3b) by its length, as already mentioned above, but by its section, its transverse dimensions, its constructive characteristics, even its technical characteristics.

The assembly of one or more complementary elements is advantageously done by gluing and for example by hot gluing, by high frequency heating, or by thermal conduction. The fact of having profiles of the same thickness over the entire width and over the entire length at least in the bonding areas, allows a homogeneous heat transfer and thus provides a consistent assembly and therefore reliable and reproducible.

It has been understood that the complementary elements (3a, 3b) can extend forwardly and / or rearward beyond the zone of the pad (4) and in this case the gluing of the latter can be carried out on their entire length, or partially, for example, being glued to the base only in the zone of the shoe (4), whereas the front and / or rear extension of these elements beyond the zone of the shoe would not be fixed to the base, to be for example just in support.

The complementary elements (3a, 3b) are reinforcing technical elements which confer with their cooperation with the base the technical characteristics (rigidity, flexion, torsion etc.) necessary for the practice of skiing. Thus, the complementary elements (3a, 3b) for example made by thermocompression of fibrous reinforcing plies embedded in a thermoplastic or thermosetting matrix. The reinforcing fibers are for example glass fiber type, high modulus carbon fiber or high tenacity.

It will be added that the thickness (e) of the complementary element is for example between 1 and 15 millimeters. The thickness (e) is for example between 5 and 10 millimeters, and set for example 6 millimeters.

Of course, the invention is not limited to the embodiments described and represented by way of examples, but it also includes all the technical equivalents as well as their combinations.

Figures 12a, 12b, 12c and 13 are views of a ski in cross section according to four alternative embodiments.

According to the variant of Figure 12a, the cross section of the complementary element has at least a portion of its length, see its entire length substantially the general shape of an S, whose lower part (PI) is substantially the same width as the upper part (PS).

According to the variant of Figure 12b, the cross section of the complementary element has at least a portion of its length, see its entire length substantially the general shape of an S, the lower part (PI) to a width more weaker than that of the upper part (PS).

According to the variant of Figure 12c, the cross section of the complementary element has at least a part of its length, see its entire length substantially the general shape of an S, whose lower part (PI) is larger than that of the upper part (PS).

According to the variant of Figure 13, the cross section of the complementary element has at least a part of its length, see its entire length substantially the general shape of an S, the upper part (PS) is curved for s 'extends downwards and the general plane of symmetry (P).

FIGS. 14A, 14B, 14C, 14D, 14E are views similar to the views of FIGS. 6A, 6B, 6C, 6D, 6E, but illustrating another variant embodiment in which the shape of the cross-section of the complementary elements varies longitudinally according to another variant. According to this variant, the shape of the profile in a cross section is such that in the region of the pad (4) of the base, the cross section has a curved shape convex towards the outside, as in the illustration of FIG. 9, while at the front and back the profile section is rectangular.

Claims (15)

1. Snow sliding board (1) such as a ski, a monoski or a surf, of a vertical plane of general symmetry (P), comprising a main part, called body or base (2), constituted by a longitudinal rib (11) formed by two lateral recesses (5a, 5b) which open laterally outward (EX) and upward (HA), while they do not open downward (BA), to form a lateral border lower (20), while in each of the recesses (5a, 5b) is fixed a lateral complementary element respectively (3a, 3b), characterized in that the lateral complementary element (3a, 3b) is a reinforcing technical element which confers, with their cooperation with the base, the technical characteristics (rigidity, flexion, torsion, etc.) necessary for the practice of skiing, and in that said complementary element (3a, 3b) extends laterally and longitudinally along a thickness ( e) substantially constant, at least in the assembly areas (Z) with the base (2). 2. snow gliding board (1) according to claim 1, characterized in that the width (L2) of the complementary element (3a, 3b) is the same over its entire length. 3. snow gliding board (1) according to claim 1, characterized in that the width (L2) of the complementary element (3a, 3b) is longitudinally variable. 4. snow gliding board (1) according to claim 3, characterized in that the width (L2) of the complementary element (3a, 3b) is wider at the center (40) of the ski (1), and decreases gradually, forward (AV) and / or backward (AR). 5. snow gliding board (1) according to any one of the preceding claims, characterized in that the cross section of the complementary element (3a, 3b) has at least over part of its length, see entire length the shape of a rectangle. 6. snow gliding board (1) according to any one of claims 1 to 4, characterized in that the cross section of the complementary element (3a, 3b) has at least over part of its length, see the whole its length substantially the general shape of an S. 7. snow gliding board (1) according to any one of claims 1 to 4, characterized in that the cross section of the complementary element (3a, 3b) has at least over part of its length, see the whole its length a curved convex shape towards the center of the base. 8. snow gliding board (1) according to any one of claims 1 to 4, characterized in that the cross section of the complementary element (3a, 3b) has at least over part of its length, see entire length a curved shape convex to the outside. 9. snow gliding board (1) according to any one of claims 1 to 4, characterized in that the cross section of the complementary element (3a, 3b) has at least over part of its length, see the whole its length is formed by two rectangular portions (30,31) connected by a projecting central portion (32). 10. snow gliding board (1) according to any one of the preceding claims, characterized in that the shape of the cross section of the profile of the complementary elements (3a, 3b) varies longitudinally. 11. snow sliding board (1) according to claim 10, characterized in that , in the region of the pad (4) of the base, the cross section of the complementary elements (3a, 3b) has the shape substantially of an S, while at the front and rear the section of the profile of the complementary elements (3a, 3b) is rectangular. 12. snow sliding board (1) according to any one of the preceding claims, characterized in that the height (H1) of the fields (50a, 50b) of the base (2) gradually decrease from the center (40) of the ski (1), forwards and / or backwards. 13. snow gliding board (1) according to any one of the preceding claims, characterized in that the thickness (e) of the complementary element (3a, 3b) is between 1 and 15 millimeters. 14. snow gliding board (1) according to the preceding claims, characterized in that the complementary elements (3a, 3b) for example made of fibrous reinforcing plies embedded in a thermoplastic or thermoset matrix, while the reinforcing fibers are for example glass fiber type, high modulus carbon fiber or high tenacity. 15. snow gliding board (1) according to any one of the preceding claims, characterized in that the thickness (e) does not vary by plus or minus 20%.

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