EP0490043A1 - Ski containing base, upper body and attaching member for bindings - Google Patents

Ski containing base, upper body and attaching member for bindings Download PDF

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Publication number
EP0490043A1
EP0490043A1 EP91117194A EP91117194A EP0490043A1 EP 0490043 A1 EP0490043 A1 EP 0490043A1 EP 91117194 A EP91117194 A EP 91117194A EP 91117194 A EP91117194 A EP 91117194A EP 0490043 A1 EP0490043 A1 EP 0490043A1
Authority
EP
European Patent Office
Prior art keywords
stiffener
base
ski according
ski
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91117194A
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German (de)
French (fr)
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EP0490043B1 (en
Inventor
Philippe Commier
Jacques Le Masson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR9016048A external-priority patent/FR2670393B1/en
Priority claimed from FR9105012A external-priority patent/FR2675390B1/en
Application filed by Salomon SAS filed Critical Salomon SAS
Priority to AT91117194T priority Critical patent/ATE101532T1/en
Publication of EP0490043A1 publication Critical patent/EP0490043A1/en
Application granted granted Critical
Publication of EP0490043B1 publication Critical patent/EP0490043B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/07—Skis or snowboards with special devices thereon, e.g. steering devices comprising means for adjusting stiffness

Definitions

  • the present invention relates to a ski, such as an alpine ski, a cross-country ski, a monoski or a snowboard. It relates more particularly to an improvement in this type of skiing.
  • ski consist of an elongated beam, the front end of which is curved upwards to form a spatula, the rear end also being more slightly to form the heel.
  • the structure generally comprises peripheral protective elements, internal resistance elements to resist the flexural and torsional stresses, and a core. These elements are assembled by gluing or by injection, the assembly generally being carried out hot in a mold having the final shape of the ski, with a front part strongly raised in a tip, a rear part slightly raised in the heel, a central arched part. .
  • the present invention relates to improvements made to these skis, with the aim of facilitating their manufacture which makes it possible to obtain the desired characteristics by the diversity of the parameters that can be chosen.
  • the ski according to the invention is characterized in that it consists of a first lower assembly or base and a second upper assembly or stiffener whose front and rear ends are linked to said base by flexible and / or partially connecting means rigid, and comprising at least one support or stirrup linked to the base intended to receive the bindings for holding the boot on the ski.
  • the stiffener has a length less than the length of the surface of the base in contact with the snow.
  • the base and / or the stiffener is an elongated beam.
  • the stiffener is linked to the base by a link located at its two ends, and this link is flexible and / or partially rigid.
  • the support has the shape of a stirrup having the shape of an inverted "U" and comprises an upper wall extended laterally and downwards by two side walls to constitute a lower housing having the shape of 'A hollow profile extending longitudinally for the passage of the stiffener.
  • This support can receive the front fixing at the front and extend rearwards under the rear fixing.
  • the ski can be such that it comprises two supports spaced from each other, a first front support on which is fixed the front stop for retaining the boot, and a second support or rear support on which is fixed the heel piece.
  • Figure 1 is a side view of a first embodiment of a ski according to the invention.
  • Figure 2 is a top view of Figure 1.
  • Figure 3 is a side view showing the various components of the ski according to the first embodiment.
  • Figures 4, 5 and 6 are sections along IV-IV, V-V, VI-VI of Figure 1.
  • Figure 7 is a perspective view.
  • Figure 8 is a top view showing a variant.
  • FIG. 9 is a longitudinal view of the ski according to a variant of FIG. 1.
  • FIG. 10 is a simplified cross-sectional view according to a variant of FIG. 6.
  • FIG. 11 is a perspective view of the mode of FIG. 10.
  • Figure 12 is a side view showing another embodiment.
  • Figures 13 and 14 show a variant in partial schematic views respectively lateral and in section.
  • Figure 15 is a cross-sectional view showing a variant.
  • Figure 16 is another embodiment shown in side view.
  • Figures 17 and 18 are views similar to Figure 13 showing two alternative embodiments.
  • Figures 19, 20, 21 and 24 are side views showing variants.
  • FIG. 22a shows a detail of the embodiment of FIG. 20.
  • FIG. 22b shows a detail of the embodiment of FIG. 19.
  • Figures 22c and 22d are similar views showing two variants.
  • Figures 22e and 22f show a detail according to variants of Figure 19 or 21.
  • FIG. 23 shows in perspective a detail of the embodiment of FIG. 20.
  • Figure 25 is a simplified cross-sectional view similar to Figure 6 showing a variant.
  • FIG. 26 is a cross section along T2 of FIG. 24.
  • FIGS 27 to 30 show an alternative embodiment of the supports.
  • Figure 27 is a side view of an equipped ski.
  • FIG. 28 is a sectional view along T3 of FIG. 27.
  • FIG. 29 is a sectional view along T4 of FIG. 27.
  • FIG. 30 is a perspective view of FIG. 27.
  • Figure 31 is a view similar to Figure 27 showing a variant.
  • Figures 32 to 34 show two variants of the invention, in particular of the support.
  • FIGS. 32 and 33 are simplified views in cross section according to a variant of FIG. 6.
  • FIG. 34 is a view in longitudinal section in the region of the support of FIG. 33.
  • Figures 35 to 37 show respectively in perspective, in cross section and in plan a variant of the invention and in particular of the support and stiffener.
  • Figure 38 shows in perspective a ski according to a variant of the invention, in particular of the stiffener.
  • Figure 39 shows a sectional view of the ski of Figure 38 along II.
  • Figure 40 shows a sectional view of the ski of Figure 38 along II-II.
  • Figure 41 shows a sectional view of the ski of Figure 38 along III-III.
  • FIG. 1 represents a ski according to a first embodiment according to the invention. It includes a lower assembly or base (1) and an upper assembly or stiffener (2). Said stiffener (2) is disposed above the base (1) and connected to the latter by connecting means (3).
  • the base (1) is the element in contact with the snow and is in the form of an elongated beam (10) having its own distribution of thickness, of width and therefore its own stiffness.
  • This elongated beam can also have a stiffness less than or equal to that of a conventional ski.
  • the base (1) comprises a central part (113) slightly arched, having a lower sliding surface (114) and an upper surface (115).
  • the central part (113) occupies most of the length of the base and is extended on the one hand at the front by an anterior part (116) raised to form the spatula (117) and on the other hand, by a rear part (118) slightly raised to form the heel of the ski.
  • the rear part (118) being relatively short and of low lift, and the front part (116) is longer and much more arched, as is known per se and shown in the figures.
  • the structure of the base (1) can be of the sandwich type or of the box type or of any other type.
  • a preferred structure is shown comprising a rigid upper reinforcement (101), in the form of a shell with a "U" section forming a top wall (102) and two side walls (103 and 104) covering a core (105), the assembly being closed at its lower part by a lower element (106) comprising the metal edges (107, 108), a sliding layer (109) generally made of polyethylene as well as lower reinforcing elements (110, 111) .
  • An upper surface layer (112) covers the upper reinforcement to form the decor of the base.
  • the reinforcing layers (101,110,111) can be of all types such as layers of composite materials such as fiberglass, carbon fiber with epoxy or polyester resin or a metal alloy.
  • the core (105) can be filled or unloaded foam, wood or aluminum honeycomb.
  • the monolayer or multilayer surface layer providing the decoration can be made of polyamide or other material, such as a thermoplastic material.
  • the upper face (115) of the central part (113) of the base (1) is covered with a stiffener (2).
  • This element is intended to complete the distribution of the stiffnesses of the base (1) so as to obtain the desired overall distribution.
  • Said stiffener (2) can be of any kind, any shape and any structure.
  • the stiffener (2) is in the form of an elongated part (20) also having its own distribution of thickness, width and therefore stiffness.
  • the structure of the stiffener is of the box type and is formed of a core (201) disposed between an upper reinforcement (202) and a lower reinforcement (203). It can also consist of a simple profile, or a blade for example.
  • the upper reinforcement (202) is covered with another additional reinforcement layer (204) in the shape of an inverted "U” and forming an upper wall (205) and two side walls (206,207).
  • a surface layer (208) covers the top and the side faces of the stiffener (2) to form the finish and the decoration thereof.
  • the reinforcing layers of the stiffener can be of all types such as layers of composite materials such as fiberglass, carbon fiber, with epoxy or polyester resin.
  • the core (201) can be filled or unloaded foam, wood or aluminum honeycomb.
  • the surface layer providing the decoration can be made of polyamide or other material, such as a thermoplastic material. It can be monolayer or produced by several layers.
  • the stiffener (2) has a length "L2" less than the length "L1" of the base (1).
  • the front end (209) of the stiffener is located between the tip contact point (119) of the base and the front end (120) of the standardized area for mounting the fasteners.
  • the rear end (210) of the stiffener is located between the rear contact point (121) and the rear end (122) of the standardized area for mounting the fasteners. So if the base (1) has a length "L1" of contact with the snow, the stiffener (2) has a length "L2" such that "L2" is less than "L1".
  • the length "L2" of the stiffener is between 50% and 100% of the length "L1".
  • the relative longitudinal position of the stiffener (2) relative to the base (1) may for example be such that the middle (211) of the stiffener (2) is at the middle (123) of the length (L1 ) contact of the base (1) with snow. But it could be otherwise; thus the middle (211) of the stiffener (2) can be further forward (AV) or further back (AR) relative to the middle (123) of the base.
  • the stiffener (2) may have a width "l2" less than the width "l1" of the base (1) and thus be narrower than the latter, as shown diagrammatically in Figures 2, 5 and 6.
  • width of the two base unit (1) and / or stiffener (2) can be constant or variable.
  • the base (1) and the stiffener (2) are elongated parts of respective height "h1" and "h2".
  • the two heights "h1” and “h2" can have the same value, but also be different.
  • "h1” can be greater or less than "h2”.
  • "h1" and / or "h2" can be constant depending on the longitudinal position where the measurement is made.
  • the height "h1" of the base and the height "h2" of the stiffener decrease forward and backward, as shown in the figures.
  • the stiffener (2) is linked to the base (1) by connection means (3) such that the connection between the two elements is partially flexible and / or partially rigid.
  • FIGS. 1 to 6 represents an example according to which the connection (3) between the two base (1) and stiffener (2) assemblies is partially flexible, and extends only under the front end ( 209) and rear (210) of said stiffener.
  • the connecting means (3) are produced by two flexible interfaces (31 and 32).
  • a first flexible front interface (31) of length "l31” and a second flexible rear interface (32) of length "l32” being disposed respectively under the front (209) and rear (210) end of the stiffener.
  • the interfaces (31 and 32) are produced by a layer of a flexible material of the elastic type, and in particular of the viscoelastic type, which is glued or welded on the one hand to the upper surface (115) of the base (1) and on the other hand, under the lower surface (216) of the stiffener.
  • the material used can be elastic with a hardness of 10 to 85 shores A or viscoelastic material with a modulus of elasticity of 15 to 160 megapascal, a hardness of 50 to 95 shores A and a damping value of 0 , 13-0.72.
  • these data are only exemplary embodiments for measurements made at 20 ° C. and at frequencies of 15 Hz.
  • the interfaces (31, 32) are fixed to the base (1) and the stiffener (2) for example by a thermosetting resin of the polyester, vinyl ester or polyurethane epoxy type or a thermoplastic film, or any other means.
  • the ski comprises at least one support (4) intended to receive the binding (s) (5) for retaining the skier's boot.
  • Said support (4) has the shape of a stirrup (FIG. 6) having the shape of an inverted “U” and comprises an upper wall (40) extended laterally and downwards by two side walls (41,42) for constitute a lower housing (43) in the form of a hollow profit extending longitudinally intended for the passage of the stiffener (2).
  • the dimensions of the housing both horizontal "l4" and vertical "h4" are greater than the horizontal dimensions "l2", and vertical "h2" of the stiffener to form a space "e” necessary for the freedom of the latter.
  • the stiffener does not directly receive the stresses of the skier. Also, the support or the bracket (4) is supported only on the base (1).
  • connection between the support and the base is rigid and obtained for example by gluing, welding or any other means, such as mechanical.
  • the support (4) thus constitutes the mechanical element for transmitting and distributing the stresses of the skier on the base.
  • the stiffener (2) has at least in the area of the support (4) a width "l2" less than the width "l1" of the base, to allow passage and maintenance walls lateral of said support on the upper lateral edges (125, 126) of the base.
  • FIG. 8 represents a variant in top view according to which the stiffener (2) comprises in its central zone (212) a narrowing in width, to form two lateral clearances (213, 214) extending over a reduced length "L ' 2 "less than” L2 ".
  • the stiffener (2) thus comprising a central part of reduced width.
  • FIG. 9 represents another variant in longitudinal view according to which the stiffener (2) comprises in its central zone (212) a narrowing of thickness extending over a reduced length L''2 less than L2.
  • the clearance thus formed makes it possible to reduce the height of the support (4) and therefore advantageously that of the fasteners (5) relative to the snow.
  • Figures 10 and 11 are variants in which the stiffener (2) is integrated in the base (1) for the purpose of protection.
  • the base (1) is extended on each side by two lateral edges (10, 11) creating a housing (13) intended for the passage of the stiffener (2).
  • the dimensions of the housing, horizontal "l5" and vertical "h5" are of course greater than the dimensions, horizontal "l2" and vertical "h2" of the stiffener to form a space "e” as in the previous cases.
  • the support (4) is in this case a simple plate secured to the upper surfaces of the lateral edges (10, 11) of the base (1).
  • the central part of the lower surface (216) of the stiffener is not linked to the base.
  • This non-fixed area is located at the level of the support (4), and it is even possible to leave a clearance "e1" between the lower surface of the stiffener and the upper surface of the base.
  • the stiffener being free between points A and B separating the two interfaces (31, 32).
  • the support (4) receives at the front the front attachment (51) and extends rearward over a length "L4" as far as the rear attachment (52). Said rear attachment (52) commonly called heel being itself fixed on the rear part of said support (4).
  • FIG. 12 represents a variant according to which the ski comprises two supports (4) spaced from one another, a first front support (4a) on which the front stop (51) for retaining the boot is fixed, and a second support or rear support (4b) on which the heel piece (52) is fixed.
  • the support (4, 4a, 4b) can be an injected plastic element or a metal profile, a pultruded or extruded plastic element.
  • the support (4, 4a, 4b) can be in one and the same piece or be made up of different pieces, or even made up of a part of the corresponding fixing (5, 51, 52).
  • connection (6) between the support (4, 4a, 4b) and the base can be rigid as described above, but also flexible.
  • Figures 13 and 14 show such a variant and in which the connection is made by an interface (60) of flexible material.
  • the link (6) could also be of the slide type (60) to allow possible longitudinal sliding of the support (4) relative to the base (1). This longitudinal sliding being able, for example, to adjust and lock the binding in the chosen position, or to slide against the action of a spring, as is customary and well known in the heel retaining heels of a shoe .
  • connection (3) between the stiffener (2) and the base (1) can be flexible as in the embodiments described above, but it can also be rigid as shown in Figure 16. According to this alternatively, the front and rear ends (209, 210) of the stiffener (2) are rigidly secured to the upper surface of the base (1) to leave the central area free.
  • This rigid connection (3) can be obtained by any means such as bonding, by mechanical connection such as screws or rivets or even by welding, in particular by ultrasound or by vibration.
  • stiffness of the stiffener may be less than or equal to that of the base.
  • the skier's shoe bears directly or indirectly on the support (4). However, the shoe retained laterally and vertically by its corresponding binding could be supported on the top of the stiffener.
  • Figures 17 and 18 show variants according to which the flexible interface (60) connecting the support to the base, has a thickness which is not constant. In the variant of Figure 17, the thickness increases forward, but it could just as well increase backward. In the variant shown in FIG. 18, the interface increases in thickness both at the front and at the rear.
  • Figures 19 to 22 show other embodiments in which the stiffener (2) is linked to the base by its front and rear ends (209,210) by retaining means constituted by intermediate retaining elements (90, 91 ) ensuring its vertical and lateral retention.
  • the lower surface (216) of the stiffener (2) is not directly in contact with the upper surface (115) of the base (1), while in the variant of FIG. 20 , there is contact.
  • the increase in height has the particular effect of increasing the torque exerted by the stiffener on the base at the level of the retaining elements (90, 91); which has the consequence of increasing the pressure of the base on snow.
  • the stiffener consists of a blade (2) prestressed in abutment on the retaining means and guided by several guide means (4, 60, 61) spaced along the ski and attached to the base. Provision may be made for the retaining means (90, 91) to be adjustable longitudinally so as to be able to react to the preload of the blade (adjustment not shown).
  • the retaining means (90, 91) each consist of at least one transverse wall (92) extending upwards and a horizontal wall (93) extending towards the center of the ski to form a lower housing (94) open towards the center of the ski and closed laterally by two side walls (95, 96) of lateral retention.
  • the ends (209, 210) of the stiffener being engaged and retained in the lower housing (94).
  • the clearance "e1" allows a displacement "d" of the corresponding end. of the stiffener.
  • the relative displacement longitudinal can be done against the action of an elastic system (97), as shown in Figure 22d.
  • FIG. 22e represents a case where the height of the stiffener can be adjusted by any means such as screwing or the like.
  • FIG. 22f represents a case where the stiffener can be prestressed longitudinally by a longitudinal screwing means for example.
  • the longitudinal and vertical retaining means (90, 91) could also be constituted by articulation systems (90 ′, 91 ′) as shown in FIGS. 24 and 26.
  • the front (209) and rear ( 210) of the stiffener (2) are linked to the base (1) by a transverse articulation axis (90, 91), said articulation (90 ', 91') being retained at the base (1) by a support articulation (80) comprising two lateral retaining walls (81, 82).
  • the bracket (4, 4a, 4b) shown above has the general shape of an inverted “U", but it could be otherwise, as for example that is shown in FIG. 25.
  • the bracket (4) is formed by a part having the general shape of a "U” whose transverse wall (46) is disposed between the stiffener (2) and its base (1).
  • Figures 27 to 30 show an alternative embodiment of the support (4a, 4b).
  • the support consists of two different materials: a first part (161) made of material (M1), for example rigid and a second part (162) made of another material (M2), for example more flexible.
  • the rigid part (161) comprises a horizontal part (163) and two lateral parts (164), the flexible part being arranged under the horizontal part and being on the side of the center of the ski.
  • Figure 31 is a view similar to Figure 27 showing a variant in which the flexible parts (162) are not turned towards each other towards the center of the ski, but turned towards the front and rear ends of said ski .
  • Figures 32 to 34 show an alternative embodiment of the invention in which the support (4) comprises one or more layers of reinforcements so as to complete the stiffness characteristics of the base (1).
  • Such a construction can be useful in particular when it is desired to reduce the height of the base / support complex while retaining sufficient mechanical characteristics.
  • FIG. 32 illustrates the case where the stirrup is provided with a reinforcement insert (470) having the form of a plate inserted in a shell (471) in the shape of an inverted U.
  • the insert can be a metal plate of aluminum alloy for example or a plate of composite material.
  • the support (4) can be obtained by injection molding of the plastic shell (48). In this case, one can of course provide that the insert is secured to the shell during injection.
  • FIG. 33 illustrates the case where the stirrup consists of a reinforcing shell (480) in the shape of an inverted U on which a layer of decoration (481) is secured.
  • the reinforcing shell (480) can be made of one or more layers of composite materials of any type as seen above for the constitution of the reinforcing layers of the base.
  • the decor layer (481) can be made of a plastic material such as polyamide or the like.
  • FIG. 34 illustrates the internal structure of the ski of the invention in the region where the support extends (4).
  • the structure of the base (1) comprises inter alia, a sliding layer (109), lower reinforcing elements (110, 111), a core (105).
  • the upper reinforcement elements do not cover the core, unlike in the case of FIG. 6, and are replaced by the reinforcement element (480) of the support (4).
  • the support (4) can extend more widely beyond the area for mounting the bindings, which can be particularly advantageous insofar as its function is not only that of having to transmit the stresses of the skier on the base but also that of intervening in the distribution of stiffness along the ski.
  • Figures 35 to 37 show an embodiment in which the stiffener is of a particular design so as to limit its size and therefore to reduce the height of the bindings relative to the snow. This reduction in height notably allows better efficiency in the use of ski brakes.
  • the stiffener (2) in this case, consists of two central sections (24, 25) of useful length L3 at least equal to or greater than the length of the area provided for mounting the fasteners (5).
  • the profiles are spaced from each other by a distance l3 sufficient for the width of the fasteners (5).
  • Front and rear coupling members (26, 27) make it possible to statically connect each of the ends of the profiles (24, 25).
  • Each of these members (26, 27) is fixed by a rigid or flexible connection to the base (1) of the ski.
  • the stirrup (4) has the general shape of a plate provided with lateral flanges (44, 45) partially or totally covering the profiles and thus allowing their retention in the event of lateral buckling of each of them.
  • the stirrup is also connected in its central part (46) directly to the base by any connecting means.
  • the profiles can optionally be integrated laterally, partially or completely in housings (14) of the base of complementary shape, so as to limit their overall size.
  • the profiles are preferably made of composite material by pultrusion and assembled by molding, gluing or any other means to the coupling members (26, 27). These can be of any kind, shape or structure. One can foresee, in particular their constitution in reinforcing material based on fibers and thermosetting resin for example.
  • Figures 38 to 41 show a particular embodiment of the invention in which the stiffener is constituted by a reinforced profile whose shape is longitudinally progressive.
  • the stiffener has the shape of a flat plate in the vicinity of its ends and then has a central rib (28) whose width "l6" gradually increases towards the middle zone of the stiffener, as shown FIGS. 39 and 40.
  • This evolving shape makes it possible in particular to be able to vary the inherent stiffness of the stiffener as a function of its longitudinal position considered. It will, in fact, have a rigidity greater in the center and gradually decreasing towards the ends and thus play the same role as a stiffener whose thickness curve and section vary along the ski.
  • This embodiment has the advantage compared to those described above of being easily achievable by the technique of TRE (Thermoplastic Reinforced Stampable), SMC (Sheet Molding Compound) or by pultrusion for example.
  • the profile can be covered with a surface layer intended to protect it and possibly receive a decoration (not shown).

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Abstract

Ski characterised in that it consists of a first lower assembly or base (1) whose front end is raised in order to form the tip (117), and a second upper assembly or stiffener (2) whose front (209) and rear (210) ends are connected to the said base by flexible and/or partially rigid linking means (3), and comprising at least one attaching member or stirrup piece (4) linked to the base and intended to receive the bindings (5, 51, 52) for holding the boot on the ski. <IMAGE>

Description

La présente invention se rapporte à un ski, tel qu'un ski alpin, un ski de fond, un monoski ou un surf pour neige. Elle concerne plus particulièrement un perfectionnement à ce type de ski.The present invention relates to a ski, such as an alpine ski, a cross-country ski, a monoski or a snowboard. It relates more particularly to an improvement in this type of skiing.

On connait déjà différents types de ski et il en existe de très nombreuses variantes. Ceux-ci sont constitués par une poutre de forme allongée dont l'extrémité avant est courbée vers le haut pour constituer une spatule, l'extrémité arrière l'étant aussi plus légèrement pour constituer le talon.We already know different types of ski and there are many variations. These consist of an elongated beam, the front end of which is curved upwards to form a spatula, the rear end also being more slightly to form the heel.

Les skis actuels ont généralement une structure composite dans laquelle sont combinés différents matériaux, de manière que chacun d'eux intervienne de façon optimale compte-tenu de la distribution des contraintes mécaniques lors de l'utilisation du ski. Ainsi, la structure comprend généralement des éléments de protection périphériques, des éléments internes de résistance pour résister aux contraintes de flexion et de torsion, et un noyau. Ces éléments sont assemblés par collage ou par injection, l'assemblage s'effectuant généralement à chaud dans un moule présentant la forme définitive du ski, avec une partie avant fortement relevée en spatule, une partie arrière légèrement relevée en talon, une partie centrale cambrée.Current skis generally have a composite structure in which different materials are combined, so that each of them intervenes optimally taking into account the distribution of mechanical stresses when using the ski. Thus, the structure generally comprises peripheral protective elements, internal resistance elements to resist the flexural and torsional stresses, and a core. These elements are assembled by gluing or by injection, the assembly generally being carried out hot in a mold having the final shape of the ski, with a front part strongly raised in a tip, a rear part slightly raised in the heel, a central arched part. .

Malgré le souci des constructeurs de fabriquer des skis de bonne qualité, ceux-ci n'ont pas, à ce jour, trouvé un ski de haute performance satisfaisant dans toutes les conditions d'utilisation.Despite the manufacturers' concern to manufacture good quality skis, they have not, to date, found a high performance ski satisfactory under all conditions of use.

La présente invention concerne des perfectionnements apportés à ces skis, dans le but de faciliter leur fabrication qui permet d'obtenir les caractéristiques désirées de par la diversité des paramètres pouvant être choisis.The present invention relates to improvements made to these skis, with the aim of facilitating their manufacture which makes it possible to obtain the desired characteristics by the diversity of the parameters that can be chosen.

Le ski selon l'invention est caractérisé en ce qu'il est constitué par un premier ensemble inférieur ou embase et un deuxième ensemble supérieur ou raidisseur dont les extrémités avant et arrière sont liées à ladite embase par des moyens de liaison souple et/ou partiellement rigide, et comprenant au moins un support ou étrier lié à l'embase destiné à recevoir les fixations pour le maintien de la chaussure sur le ski.The ski according to the invention is characterized in that it consists of a first lower assembly or base and a second upper assembly or stiffener whose front and rear ends are linked to said base by flexible and / or partially connecting means rigid, and comprising at least one support or stirrup linked to the base intended to receive the bindings for holding the boot on the ski.

Selon une disposition avantageuse, le raidisseur a une longueur inférieure à la longueur de la surface de l'embase en contact avec la neige.According to an advantageous arrangement, the stiffener has a length less than the length of the surface of the base in contact with the snow.

Selon une caractéristique complémentaire, l'embase et/ou le raidisseur est une poutre de forme allongée.According to an additional characteristic, the base and / or the stiffener is an elongated beam.

Selon l'invention, le raidisseur est lié à l'embase par une liaison localisée à ses deux extrémités, et cette liaison est souple et/ou partiellement rigide.According to the invention, the stiffener is linked to the base by a link located at its two ends, and this link is flexible and / or partially rigid.

Selon un mode de réalisation préféré, le support a la forme d'un étrier ayant la forme d'un "U" renversé et comprend une paroi supérieure prolongée latéralement et vers le bas par deux parois latérales pour constituer un logement inférieur ayant la forme d'un profil en creux s'étendant longitudinalement destiné au passage du raidisseur. Ce support peut recevoir à l'avant la fixation avant et s'étendre vers l'arrière jusque sous la fixation arrière. Mais le ski peut être tel qu'il comprenne deux supports espacés l'un de l'autre, un premier support avant sur lequel est fixée la butée avant de retenue de la chaussure, et un deuxième support ou support arrière sur lequel est fixée la talonnière.According to a preferred embodiment, the support has the shape of a stirrup having the shape of an inverted "U" and comprises an upper wall extended laterally and downwards by two side walls to constitute a lower housing having the shape of 'A hollow profile extending longitudinally for the passage of the stiffener. This support can receive the front fixing at the front and extend rearwards under the rear fixing. But the ski can be such that it comprises two supports spaced from each other, a first front support on which is fixed the front stop for retaining the boot, and a second support or rear support on which is fixed the heel piece.

D'autres caractéristiques et avantages de l'invention se dégageront de la description qui va suivre en regard des dessins annexés, qui ne sont donnés qu'à titre d'exemples non limitatifs.Other characteristics and advantages of the invention will emerge from the description which follows with reference to the appended drawings, which are given only by way of nonlimiting examples.

La figure 1 est une vue latérale d'un premier mode de réalisation d'un ski selon l'invention.Figure 1 is a side view of a first embodiment of a ski according to the invention.

La figure 2 est une vue de dessus de la figure 1.Figure 2 is a top view of Figure 1.

La figure 3 est une vue latérale montrant les différents constituants du ski selon le premier mode de réalisation.Figure 3 is a side view showing the various components of the ski according to the first embodiment.

Les figures 4, 5 et 6 sont des coupes selon IV-IV, V-V, VI-VI de la figure 1.Figures 4, 5 and 6 are sections along IV-IV, V-V, VI-VI of Figure 1.

La figure 7 est une vue en perspective.Figure 7 is a perspective view.

La figure 8 est une vue de dessus représentant une variante.Figure 8 is a top view showing a variant.

La figure 9 est une vue longitudinale du ski selon une variante de la figure 1.FIG. 9 is a longitudinal view of the ski according to a variant of FIG. 1.

La figure 10 est une vue en coupe transversale simplifiée selon une variante de la figure 6.FIG. 10 is a simplified cross-sectional view according to a variant of FIG. 6.

La figure 11 est une vue en perspective du mode de la figure 10.FIG. 11 is a perspective view of the mode of FIG. 10.

La figure 12 est une vue latérale montrant un autre mode de réalisation.Figure 12 is a side view showing another embodiment.

Les figures 13 et 14 représentent une variante selon des vues schématiques partielles respectivement latérale et en coupe.Figures 13 and 14 show a variant in partial schematic views respectively lateral and in section.

La figure 15 est une vue en coupe transversale montrant une variante.Figure 15 is a cross-sectional view showing a variant.

La figure 16 est un autre mode de réalisation représenté en vue latérale.Figure 16 is another embodiment shown in side view.

Les figures 17 et 18 sont des vues similaires à la figure 13 montrant deux variantes de réalisation.Figures 17 and 18 are views similar to Figure 13 showing two alternative embodiments.

Les figures 19, 20, 21 et 24 sont des vues latérales montrant des variantes.Figures 19, 20, 21 and 24 are side views showing variants.

La figure 22a montre un détail de la réalisation de la figure 20.FIG. 22a shows a detail of the embodiment of FIG. 20.

La figure 22b montre un détail de la réalisation de la figure 19.FIG. 22b shows a detail of the embodiment of FIG. 19.

Les figures 22c et 22d sont des vues similaires représentant deux variantes.Figures 22c and 22d are similar views showing two variants.

Les figures 22e et 22f montrent un détail selon des variantes de la figure 19 ou 21.Figures 22e and 22f show a detail according to variants of Figure 19 or 21.

La figure 23 montre en perspective un détail de la réalisation de la figure 20.FIG. 23 shows in perspective a detail of the embodiment of FIG. 20.

La figure 25 est une vue en coupe transversale simplifiée similaire à la figure 6 représentant une variante.Figure 25 is a simplified cross-sectional view similar to Figure 6 showing a variant.

La figure 26 est une coupe transversale selon T2 de la figure 24.FIG. 26 is a cross section along T2 of FIG. 24.

Les figures 27 à 30 représentent une variante de réalisation des supports.Figures 27 to 30 show an alternative embodiment of the supports.

La figure 27 est une vue latérale d'un ski équipé.Figure 27 is a side view of an equipped ski.

La figure 28 est une vue en coupe selon T3 de la figure 27.FIG. 28 is a sectional view along T3 of FIG. 27.

La figure 29 est une vue en coupe selon T4 de la figure 27.FIG. 29 is a sectional view along T4 of FIG. 27.

La figure 30 est une vue en perspective de la figure 27.FIG. 30 is a perspective view of FIG. 27.

La figure 31 est une vue similaire à la figure 27 montrant une variante.Figure 31 is a view similar to Figure 27 showing a variant.

Les figures 32 à 34 montrent deux variantes de l'invention, en particulier du support.Figures 32 to 34 show two variants of the invention, in particular of the support.

Les figures 32 et 33 sont des vues simplifiées en coupe transversale selon une variante de la figure 6.FIGS. 32 and 33 are simplified views in cross section according to a variant of FIG. 6.

La figure 34 est une vue en coupe longitudinale dans la région du support de la figure 33.FIG. 34 is a view in longitudinal section in the region of the support of FIG. 33.

Les figures 35 à 37 représentent respectivement en perspective, en coupe transversale et en plan une variante de l'invention et en particulier du support et raidisseur.Figures 35 to 37 show respectively in perspective, in cross section and in plan a variant of the invention and in particular of the support and stiffener.

La figure 38 représente en perspective un ski selon une variante de l'invention, en particulier du raidisseur.Figure 38 shows in perspective a ski according to a variant of the invention, in particular of the stiffener.

La figure 39 représente une vue en coupe du ski de la figure 38 selon I-I.Figure 39 shows a sectional view of the ski of Figure 38 along II.

La figure 40 représente une vue en coupe du ski de la figure 38 selon II-II.Figure 40 shows a sectional view of the ski of Figure 38 along II-II.

La figure 41 représente une vue en coupe du ski de la figure 38 selon III-III.Figure 41 shows a sectional view of the ski of Figure 38 along III-III.

La figure 1 représente un ski selon un premier mode de réalisation selon l'invention. Il comprend un ensemble inférieur ou embase (1) et un ensemble supérieur ou raidisseur (2). Ledit raidisseur (2) est disposé au-dessus de l'embase (1) et lié à cette dernière par des moyens de liaison (3).FIG. 1 represents a ski according to a first embodiment according to the invention. It includes a lower assembly or base (1) and an upper assembly or stiffener (2). Said stiffener (2) is disposed above the base (1) and connected to the latter by connecting means (3).

L'embase (1) est l'élément en contact avec la neige et se présente sous la forme d'une poutre (10) allongée ayant sa propre distribution d'épaisseur, de largeur et donc sa propre raideur. Cette poutre allongée pouvant par ailleurs avoir une raideur plus faible ou égale à celle d'un ski classique.The base (1) is the element in contact with the snow and is in the form of an elongated beam (10) having its own distribution of thickness, of width and therefore its own stiffness. This elongated beam can also have a stiffness less than or equal to that of a conventional ski.

L'embase (1) comprend une partie centrale (113) légèrement cambrée, présentant une surface inférieure (114) de glissement et une surface supérieure (115) . La partie centrale (113) occupe la plus grande partie de la longueur de l'embase et se prolonge d'une part à l'avant par une partie antérieure (116) relevée pour former la spatule (117) et d'autre part, par une partie postérieure (118) légèrement relevée pour former le talon du ski. La partie postérieure (118) étant relativement de faible longueur et de relèvement faible, et la partie antérieure (116) est plus longue et beaucoup plus cambrée, comme il est connu en soi et représenté sur les figures.The base (1) comprises a central part (113) slightly arched, having a lower sliding surface (114) and an upper surface (115). The central part (113) occupies most of the length of the base and is extended on the one hand at the front by an anterior part (116) raised to form the spatula (117) and on the other hand, by a rear part (118) slightly raised to form the heel of the ski. The rear part (118) being relatively short and of low lift, and the front part (116) is longer and much more arched, as is known per se and shown in the figures.

La structure de l'embase (1) peut être du type sandwich ou du type à caisson ou de tout autre type. Aux figures 4, 5 et 6, on a représenté une structure préférée comprenant un renfort supérieur (101) rigide, en forme de coque à section en "U" formant une paroi supérieure (102) et deux parois latérales (103 et 104) recouvrant un noyau (105), l'ensemble étant fermé à sa partie inférieure par un élément inférieur (106) comportant les carres métalliques (107,108), une couche (109) de glissement généralement en polyéthylène ainsi que des éléments de renfort inférieur (110,111). Une couche supérieure superficielle (112) recouvre le renfort supérieur pour former le décor de l'embase.The structure of the base (1) can be of the sandwich type or of the box type or of any other type. In Figures 4, 5 and 6, a preferred structure is shown comprising a rigid upper reinforcement (101), in the form of a shell with a "U" section forming a top wall (102) and two side walls (103 and 104) covering a core (105), the assembly being closed at its lower part by a lower element (106) comprising the metal edges (107, 108), a sliding layer (109) generally made of polyethylene as well as lower reinforcing elements (110, 111) . An upper surface layer (112) covers the upper reinforcement to form the decor of the base.

Les couches de renfort (101,110,111) peuvent être de tous types tels que des couches de matériaux composites comme de la fibre de verre, fibre de carbone avec de la résine époxy ou polyester ou en alliage métallique.The reinforcing layers (101,110,111) can be of all types such as layers of composite materials such as fiberglass, carbon fiber with epoxy or polyester resin or a metal alloy.

Le noyau (105) peut être de la mousse chargée ou non, du bois ou du nid d'abeille en aluminium.The core (105) can be filled or unloaded foam, wood or aluminum honeycomb.

La couche superficielle monocouche ou multicouche assurant le décor peut être en polyamide ou autre, tel qu'en matériau thermoplastique.The monolayer or multilayer surface layer providing the decoration can be made of polyamide or other material, such as a thermoplastic material.

Selon une des caractéristiques de l'invention, la face supérieure (115) de la partie centrale (113) de l'embase (1) est recouverte d'un raidisseur (2). Cet élément est destiné à compléter la distribution des raideurs de l'embase (1) de manière à obtenir la distribution globale souhaitée. Ledit raidisseur (2) peut être de toute nature, de toute forme et de toute structure.According to one of the characteristics of the invention, the upper face (115) of the central part (113) of the base (1) is covered with a stiffener (2). This element is intended to complete the distribution of the stiffnesses of the base (1) so as to obtain the desired overall distribution. Said stiffener (2) can be of any kind, any shape and any structure.

Selon une disposition avantageuse, le raidisseur (2) se présente sous la forme d'une partie (20) allongée ayant aussi sa propre distribution d'épaisseur, de largeur et donc de raideur.According to an advantageous arrangement, the stiffener (2) is in the form of an elongated part (20) also having its own distribution of thickness, width and therefore stiffness.

Dans le mode de réalisation donné à titre d'exemple et représenté par les figures 5 et 6, la structure du raidisseur est du type caisson et est formé d'un noyau (201) disposé entre un renfort supérieur (202) et un renfort inférieur (203). Il peut être aussi constitué d'un simple profilé, ou d'une lame par exemple.In the embodiment given by way of example and represented by FIGS. 5 and 6, the structure of the stiffener is of the box type and is formed of a core (201) disposed between an upper reinforcement (202) and a lower reinforcement (203). It can also consist of a simple profile, or a blade for example.

Le renfort supérieur (202) est recouvert d'une autre couche de renfort supplémentaire (204) en forme de "U" renversé et formant une paroi supérieure (205) et deux parois latérales (206,207). Une couche superficielle (208) recouvre le dessus et les faces latérales du raidisseur (2) pour former la finition et le décor de celui-ci.The upper reinforcement (202) is covered with another additional reinforcement layer (204) in the shape of an inverted "U" and forming an upper wall (205) and two side walls (206,207). A surface layer (208) covers the top and the side faces of the stiffener (2) to form the finish and the decoration thereof.

Comme précédemment pour l'embase, les couches de renfort du raidisseur peuvent être de tous types tels que des couches de matériaux composites comme de la fibre de verre, fibre de carbone, avec de la résine époxy ou polyester. Le noyau (201) peut être de la mousse chargée ou non, du bois ou du nid d'abeille en aluminium. La couche superficielle assurant le décor peut être en polyamide ou autre, tel qu'en matériau thermoplastique. Elle peut être monocouche ou réalisée par plusieurs couches.As previously for the base, the reinforcing layers of the stiffener can be of all types such as layers of composite materials such as fiberglass, carbon fiber, with epoxy or polyester resin. The core (201) can be filled or unloaded foam, wood or aluminum honeycomb. The surface layer providing the decoration can be made of polyamide or other material, such as a thermoplastic material. It can be monolayer or produced by several layers.

Selon une disposition avantageuse, le raidisseur (2) a une longueur "L2" inférieure à la longueur "L1" de l'embase (1). Ainsi, l'extrémité avant (209) du raidisseur se situe entre le point (119) de contact spatule de l'embase et l'extrémité avant (120) de la zone normalisée de montage des fixations. De même, l'extrémité arrière (210) du raidisseur se situe entre le point de contact arrière (121) et l'extrémité arrière (122) de la zone normalisée de montage des fixations. Ainsi, si l'embase (1) a une longueur "L1" de contact avec la neige, le raidisseur (2) a une longueur "L2" telle que "L2" soit inférieure à "L1".According to an advantageous arrangement, the stiffener (2) has a length "L2" less than the length "L1" of the base (1). Thus, the front end (209) of the stiffener is located between the tip contact point (119) of the base and the front end (120) of the standardized area for mounting the fasteners. Similarly, the rear end (210) of the stiffener is located between the rear contact point (121) and the rear end (122) of the standardized area for mounting the fasteners. So if the base (1) has a length "L1" of contact with the snow, the stiffener (2) has a length "L2" such that "L2" is less than "L1".

A titre d'exemple, la longueur "L2" du raidisseur est comprise entre 50 % et 100 % de la longueur "L1". De plus, la position longitudinale relative du raidisseur (2) par rapport à l'embase (1) peut être par exemple telle que le milieu (211) du raidisseur (2) soit au niveau du milieu (123) de la longueur (L1) de contact de l'embase (1) avec la neige. Mais il pourrait en être autrement ; ainsi le milieu (211) du raidisseur (2) peut être plus en avant (AV) ou plus en arrière (AR) par rapport au milieu (123) de l'embase.For example, the length "L2" of the stiffener is between 50% and 100% of the length "L1". In addition, the relative longitudinal position of the stiffener (2) relative to the base (1) may for example be such that the middle (211) of the stiffener (2) is at the middle (123) of the length (L1 ) contact of the base (1) with snow. But it could be otherwise; thus the middle (211) of the stiffener (2) can be further forward (AV) or further back (AR) relative to the middle (123) of the base.

En ce qui concerne la largeur des deux éléments, le raidisseur (2) peut avoir une largeur "l2" inférieure à la largeur "l1" de l'embase (1) et être ainsi plus étroit que cette dernière, comme cela est représenté schématiquement aux figures 2, 5 et 6.As regards the width of the two elements, the stiffener (2) may have a width "l2" less than the width "l1" of the base (1) and thus be narrower than the latter, as shown diagrammatically in Figures 2, 5 and 6.

Notons aussi que la largeur des deux ensembles embase (1) et/ou raidisseur (2) peut être constante ou variable.Note also that the width of the two base unit (1) and / or stiffener (2) can be constant or variable.

L'embase (1) et le raidisseur (2) sont des parties allongées de hauteur respective "h1" et "h2". Bien entendu dans une coupe transversale, les deux hauteurs "h1" et "h2" peuvent avoir la même valeur, mais aussi être différentes. Ainsi, dans une coupe transversale, "h1" peut être supérieur ou inférieur à "h2". De plus, "h1" et/ou "h2" peut être constant en fonction de la position longitudinale où est faite la mesure. Toutefois, pour obtenir une bonne répartition de la raideur, il est avantageux de faire varier l'une ou l'autre des hauteurs "h1" ou "h2" et même les deux "h1" et "h2". Avantageusement, la hauteur "h1" de l'embase et la hauteur "h2" du raidisseur diminuent vers l'avant et vers l'arrière, comme cela est représenté sur les figures.The base (1) and the stiffener (2) are elongated parts of respective height "h1" and "h2". Of course in a cross section, the two heights "h1" and "h2" can have the same value, but also be different. Thus, in a cross section, "h1" can be greater or less than "h2". In addition, "h1" and / or "h2" can be constant depending on the longitudinal position where the measurement is made. However, to obtain a good distribution of the stiffness, it is advantageous to vary one or the other of the heights "h1" or "h2" and even the two "h1" and "h2". Advantageously, the height "h1" of the base and the height "h2" of the stiffener decrease forward and backward, as shown in the figures.

Selon une autre caractéristique de l'invention, le raidisseur (2) est lié à l'embase (1) par des moyens de liaison (3) tels que la liaison entre les deux éléments soit partiellement souple et/ou partiellement rigide.According to another characteristic of the invention, the stiffener (2) is linked to the base (1) by connection means (3) such that the connection between the two elements is partially flexible and / or partially rigid.

Le mode de réalisation représenté aux figures 1 à 6, représente un exemple selon lequel la liaison (3) entre les deux ensembles embase (1) et raidisseur (2) est partiellement souple, et ne s'étend que sous l'extrémité avant (209) et arrière (210) dudit raidisseur. A cet effet les moyens de liaison (3) sont réalisés par deux interfaces souples (31 et 32). Un premier interface avant souple (31) de longueur "l31" et un deuxième interface arrière souple (32) de longueur "l32" étant disposés respectivement sous l'extrémité avant (209) et arrière (210) du raidisseur.The embodiment shown in FIGS. 1 to 6 represents an example according to which the connection (3) between the two base (1) and stiffener (2) assemblies is partially flexible, and extends only under the front end ( 209) and rear (210) of said stiffener. To this end, the connecting means (3) are produced by two flexible interfaces (31 and 32). A first flexible front interface (31) of length "l31" and a second flexible rear interface (32) of length "l32" being disposed respectively under the front (209) and rear (210) end of the stiffener.

Les interfaces (31 et 32) sont réalisés par une couche d'un matériau souple du type élastique, et notamment du type viscoélastique, qui est collé ou soudé d'une part sur la surface supérieure (115) de l'embase (1) et d'autre part, sous la surface inférieure (216) du raidisseur. Le matériau utilisé peut être élastique d'une dureté de 10 à 85 shores A ou du matériau viscoélastique de module d'élasticité de 15 à 160 mégapascal d'une dureté de 50 à 95 shores A et d'une valeur d'amortissement de 0,13 à 0,72. Bien entendu, ces données ne sont que des exemples de réalisation pour des mesures faites à 20°C et à des fréquences de 15 Hz.The interfaces (31 and 32) are produced by a layer of a flexible material of the elastic type, and in particular of the viscoelastic type, which is glued or welded on the one hand to the upper surface (115) of the base (1) and on the other hand, under the lower surface (216) of the stiffener. The material used can be elastic with a hardness of 10 to 85 shores A or viscoelastic material with a modulus of elasticity of 15 to 160 megapascal, a hardness of 50 to 95 shores A and a damping value of 0 , 13-0.72. Of course, these data are only exemplary embodiments for measurements made at 20 ° C. and at frequencies of 15 Hz.

La fixation des interfaces (31, 32) sur l'embase (1) et le raidisseur (2) est réalisée par exemple par une résine thermodurcissable du type époxyde polyester, vinylester ou polyuréthane ou un film thermoplastique, ou tout autre moyen.The interfaces (31, 32) are fixed to the base (1) and the stiffener (2) for example by a thermosetting resin of the polyester, vinyl ester or polyurethane epoxy type or a thermoplastic film, or any other means.

Selon l'invention, le ski comprend au moins un support (4) destiné à recevoir la ou les fixations (5) de retenue de la chaussure du skieur. Cedit support (4) a la forme d'un étrier (figure 6) ayant la forme d'un "U" renversé et comprend une paroi supérieure (40) prolongée latéralement et vers le bas par deux parois latérales (41,42) pour constituer un logement (43) inférieur ayant la forme d'un profit en creux s'étendant longitudinalement destiné au passage du raidisseur (2). Il faut noter que les dimensions du logement aussi bien horizontale "l4" que verticale "h4" sont supérieures aux dimensions horizontale "l2", et verticale "h2" du raidisseur pour former un espace "e" nécessaire à la liberté de ce dernier.According to the invention, the ski comprises at least one support (4) intended to receive the binding (s) (5) for retaining the skier's boot. Said support (4) has the shape of a stirrup (FIG. 6) having the shape of an inverted "U" and comprises an upper wall (40) extended laterally and downwards by two side walls (41,42) for constitute a lower housing (43) in the form of a hollow profit extending longitudinally intended for the passage of the stiffener (2). It should be noted that the dimensions of the housing both horizontal "l4" and vertical "h4" are greater than the horizontal dimensions "l2", and vertical "h2" of the stiffener to form a space "e" necessary for the freedom of the latter.

Selon une caractéristique de l'invention, le raidisseur ne reçoit pas directement les sollicitations du skieur. Aussi, le support ou l'étrier (4) est en appui uniquement sur l'embase (1).According to a characteristic of the invention, the stiffener does not directly receive the stresses of the skier. Also, the support or the bracket (4) is supported only on the base (1).

A cet effet, les extrémités inférieures (44 et 45) des parois latérales du support sont reliées à la surface supérieure (115) de l'embase (1). Avantageusement, la liaison entre le support et l'embase est rigide et obtenue par exemple par collage, par soudage ou tout autre moyen, tel que mécanique.To this end, the lower ends (44 and 45) of the side walls of the support are connected to the upper surface (115) of the base (1). Advantageously, the connection between the support and the base is rigid and obtained for example by gluing, welding or any other means, such as mechanical.

Le support (4) constitue ainsi l'élément mécanique de transmission et de distribution des sollicitations du skieur sur l'embase.The support (4) thus constitutes the mechanical element for transmitting and distributing the stresses of the skier on the base.

Comme on peut le voir à la figure 6, le raidisseur (2) a au moins dans la zone du support (4) une largeur "l2" inférieure à la largeur "l1" de l'embase, pour permettre le passage et le maintien des parois latérales dudit support sur les bords latéraux supérieurs (125, 126) de l'embase.As can be seen in Figure 6, the stiffener (2) has at least in the area of the support (4) a width "l2" less than the width "l1" of the base, to allow passage and maintenance walls lateral of said support on the upper lateral edges (125, 126) of the base.

La figure 8 représente une variante en vue de dessus selon laquelle le raidisseur (2) comprend dans sa zone centrale (212) un rétrécissement de largeur, pour former deux dégagements latéraux (213, 214) s'étendant sur une longueur réduite "L'2" inférieure à "L2". Le raidisseur (2) comprenant ainsi une partie centrale de largeur réduite.FIG. 8 represents a variant in top view according to which the stiffener (2) comprises in its central zone (212) a narrowing in width, to form two lateral clearances (213, 214) extending over a reduced length "L ' 2 "less than" L2 ". The stiffener (2) thus comprising a central part of reduced width.

La figure 9 représente une autre variante en vue longitudinale selon laquelle le raidisseur (2) comprend dans sa zone centrale (212) un rétrécissement d'épaisseur s'étendant sur une longueur réduite L''2 inférieure à L2. Le dégagement ainsi formé permet de réduire la hauteur du support (4) et par conséquent avantageusement celle des fixations (5) par rapport à la neige.FIG. 9 represents another variant in longitudinal view according to which the stiffener (2) comprises in its central zone (212) a narrowing of thickness extending over a reduced length L''2 less than L2. The clearance thus formed makes it possible to reduce the height of the support (4) and therefore advantageously that of the fasteners (5) relative to the snow.

Les figures 10 et 11 sont des variantes dans lesquelles le raidisseur (2) est intégré dans l'embase (1) dans un but de protection. Pour cela, l'embase (1) se prolonge de chaque côté par deux bords latéraux (10, 11) créant un logement (13) destiné au passage du raidisseur (2). Les dimensions du logement, horizontale "l5" et verticale "h5" sont bien entendu supérieures aux dimensions, horizontale "l2" et verticale "h2" du raidisseur pour former un espace "e" comme dans les cas précédants. Le support (4) se présente dans ce cas comme une simple plaque solidaire des surfaces supérieures des bords latéraux (10, 11) de l'embase (1).Figures 10 and 11 are variants in which the stiffener (2) is integrated in the base (1) for the purpose of protection. For this, the base (1) is extended on each side by two lateral edges (10, 11) creating a housing (13) intended for the passage of the stiffener (2). The dimensions of the housing, horizontal "l5" and vertical "h5" are of course greater than the dimensions, horizontal "l2" and vertical "h2" of the stiffener to form a space "e" as in the previous cases. The support (4) is in this case a simple plate secured to the upper surfaces of the lateral edges (10, 11) of the base (1).

Selon le mode de réalisation représenté aux figures 1 à 6, la partie centrale de la surface inférieure (216) du raidisseur n'est pas liée à l'embase. Cette zone non fixée est localisée au niveau du support (4), et l'on peut même laisser un jeu "e1" entre la surface inférieure du raidisseur et la surface supérieure de l'embase. Le raidisseur étant libre entre les points A et B séparant les deux interfaces (31, 32).According to the embodiment shown in Figures 1 to 6, the central part of the lower surface (216) of the stiffener is not linked to the base. This non-fixed area is located at the level of the support (4), and it is even possible to leave a clearance "e1" between the lower surface of the stiffener and the upper surface of the base. The stiffener being free between points A and B separating the two interfaces (31, 32).

Selon le mode de réalisation des figures 1 à 7, le support (4) reçoit à l'avant la fixation avant (51) et s'étend vers l'arrière sur une longueur "L4" jusque sous la fixation arrière (52). Ladite fixation arrière (52) appelée communément talonnière étant elle-même fixée sur la partie arrière dudit support (4).According to the embodiment of Figures 1 to 7, the support (4) receives at the front the front attachment (51) and extends rearward over a length "L4" as far as the rear attachment (52). Said rear attachment (52) commonly called heel being itself fixed on the rear part of said support (4).

La figure 12 représente une variante selon laquelle le ski comprend deux supports (4) espacés l'un de l'autre, un premier support avant (4a) sur lequel est fixée la butée avant (51) de retenue de la chaussure, et un deuxième support ou support arrière (4b) sur lequel est fixée la talonnière (52).FIG. 12 represents a variant according to which the ski comprises two supports (4) spaced from one another, a first front support (4a) on which the front stop (51) for retaining the boot is fixed, and a second support or rear support (4b) on which the heel piece (52) is fixed.

Le support (4, 4a, 4b) peut être un élément injecté en matière plastique ou un profilé métallique, un élément en plastique pultrudé ou extrudé.The support (4, 4a, 4b) can be an injected plastic element or a metal profile, a pultruded or extruded plastic element.

Bien entendu, le support (4, 4a, 4b) peut être d'une seule et même pièce ou être constitué de différentes pièces, voire même constitué par une partie de la fixation (5, 51, 52) correspondante.Of course, the support (4, 4a, 4b) can be in one and the same piece or be made up of different pieces, or even made up of a part of the corresponding fixing (5, 51, 52).

Notons aussi que la liaison (6) entre le support (4, 4a, 4b) et l'embase peut être rigide comme cela est décrit précédemment, mais aussi souple. Les figures 13 et 14 représentent une telle variante et dans laquelle la liaison est réalisée par une interface (60) en matériau souple.Note also that the connection (6) between the support (4, 4a, 4b) and the base can be rigid as described above, but also flexible. Figures 13 and 14 show such a variant and in which the connection is made by an interface (60) of flexible material.

La liaison (6) pourrait aussi être du type à glissière (60) pour permettre le coulissement longitudinal éventuel du support (4) par rapport à l'embase (1). Ce coulissement longitudinal pouvant, par exemple, permettre de régler et verrouiller la fixation dans la position choisie, ou encore coulisser contre l'action d'un ressort, comme il est d'usage et bien connu dans les talonnières de retenue de talon de chaussure.The link (6) could also be of the slide type (60) to allow possible longitudinal sliding of the support (4) relative to the base (1). This longitudinal sliding being able, for example, to adjust and lock the binding in the chosen position, or to slide against the action of a spring, as is customary and well known in the heel retaining heels of a shoe .

Notons aussi que la liaison (3) entre le raidisseur (2) et l'embase (1) peut être souple comme dans les réalisations décrites précédemment, mais qu'elle peut aussi être rigide comme cela est représenté à la figure 16. Selon cette variante, les extrémités avant et arrière (209, 210) du raidisseur (2) sont rendues solidaires de façon rigide à la surface supérieure de l'embase (1) pour laisser libre la zone centrale. Cette liaison rigide (3) peut être obtenue par tout moyen tel que collage, par liaison mécanique comme des vis ou des rivets ou même par soudage, notamment par ultrasons ou par vibrations.Note also that the connection (3) between the stiffener (2) and the base (1) can be flexible as in the embodiments described above, but it can also be rigid as shown in Figure 16. According to this alternatively, the front and rear ends (209, 210) of the stiffener (2) are rigidly secured to the upper surface of the base (1) to leave the central area free. This rigid connection (3) can be obtained by any means such as bonding, by mechanical connection such as screws or rivets or even by welding, in particular by ultrasound or by vibration.

On peut aussi ajouter que la rigidité du raidisseur peut être inférieure ou égale à celle de l'embase.It can also be added that the stiffness of the stiffener may be less than or equal to that of the base.

Rajoutons que l'espace "e" (figure 6) entre le support (4) et le raidisseur (2) peut être rempli d'une mousse très souple pour empêcher la formation de glace.Let us add that the space "e" (figure 6) between the support (4) and the stiffener (2) can be filled with a very flexible foam to prevent the formation of ice.

La chaussure du skieur est en appui directement ou indirectement sur le support (4). Toutefois la chaussure retenue latéralement et verticalement par sa fixation correspondante pourrait être en appui sur le dessus du raidisseur.The skier's shoe bears directly or indirectly on the support (4). However, the shoe retained laterally and vertically by its corresponding binding could be supported on the top of the stiffener.

Les figures 17 et 18 montrent des variantes selon lesquelles l'interface souple (60) liant le support à l'embase, a une épaisseur qui n'est pas constante. Dans la variante de la figure 17, l'épaisseur augmente vers l'avant, mais celle-ci pourrait tout aussi bien augmenter vers l'arrière. Dans la variante représentée à la figure 18, l'interface augmente en épaisseur à la fois à l'avant et à l'arrière.Figures 17 and 18 show variants according to which the flexible interface (60) connecting the support to the base, has a thickness which is not constant. In the variant of Figure 17, the thickness increases forward, but it could just as well increase backward. In the variant shown in FIG. 18, the interface increases in thickness both at the front and at the rear.

Les figures 19 à 22 montrent d'autres modes de réalisation selon lesquels le raidisseur (2) est lié à l'embase par ses extrémités avant et arrière (209,210) par des moyens de retenue constitués par des éléments intermédiaires de retenue (90, 91) assurant sa retenue verticale et latérale.Figures 19 to 22 show other embodiments in which the stiffener (2) is linked to the base by its front and rear ends (209,210) by retaining means constituted by intermediate retaining elements (90, 91 ) ensuring its vertical and lateral retention.

Selon la variante de la figure 19, la surface inférieure (216) du raidisseur (2) n'est pas directement en contact avec la surface supérieure (115) de l'embase (1), alors que dans la variante de la figure 20, il y a contact.According to the variant of FIG. 19, the lower surface (216) of the stiffener (2) is not directly in contact with the upper surface (115) of the base (1), while in the variant of FIG. 20 , there is contact.

Dans le premier cas, l'augmentation de la hauteur a notamment pour effet d'augmenter le couple exercé par le raidisseur sur l'embase au niveau des éléments de retenue (90, 91); ce qui a pour conséquence d'augmenter la pression de l'embase sur la neige. On peut également envisager d'exercer une précontrainte du raidisseur tendant à augmenter ce couple en utilisant un raidisseur constitué d'une lame maintenue dans sa partie centrale par des moyens de guidage par exemple.In the first case, the increase in height has the particular effect of increasing the torque exerted by the stiffener on the base at the level of the retaining elements (90, 91); which has the consequence of increasing the pressure of the base on snow. One can also consider exerting a prestress of the stiffener tending to increase this torque by using a stiffener consisting of a blade held in its central part by guide means for example.

Ce mode de réalisation est notamment représenté à la figure 21. Le raidisseur est constitué d'une lame (2) précontrainte en butée sur les moyens de retenue et guidée par plusieurs moyens de guidage (4, 60, 61) espacés le long du ski et fixés à l'embase. On peut prévoir que les moyens de retenue (90, 91) soient réglables longitudinalement de façon à pouvoir faire réagir la précontrainte de la lame (réglage non représenté).This embodiment is shown in particular in FIG. 21. The stiffener consists of a blade (2) prestressed in abutment on the retaining means and guided by several guide means (4, 60, 61) spaced along the ski and attached to the base. Provision may be made for the retaining means (90, 91) to be adjustable longitudinally so as to be able to react to the preload of the blade (adjustment not shown).

Les moyens de retenue (90, 91) sont constitués chacun par au moins une paroi transversale (92) s'étendant vers le haut et une paroi horizontale (93) s'étendant vers le centre du ski pour constituer un logement inférieur (94) ouvert en direction du centre du ski et fermé latéralement par deux parois latérales (95, 96) de retenue latérale. Les extrémités (209, 210) du raidisseur étant engagées et retenues dans le logement inférieur (94). On pourrait bloquer les deux extrémités dans leur logement correspondant ou bloquer l'une seulement des extrémités (209 ou 210) et permettre le déplacement de l'autre (210 ou 209) dans son logement correspondant, comme cela est représenté aux figures 22c et 22d. A la figure 22c, le jeu "e₁" permet un déplacement "d" de l'extrémité correspondante. du raidisseur. Mais le déplacement relatif longitudinal peut se faire contre l'action d'un système élastique (97), comme cela est représenté à la figure 22d.The retaining means (90, 91) each consist of at least one transverse wall (92) extending upwards and a horizontal wall (93) extending towards the center of the ski to form a lower housing (94) open towards the center of the ski and closed laterally by two side walls (95, 96) of lateral retention. The ends (209, 210) of the stiffener being engaged and retained in the lower housing (94). We could block the two ends in their corresponding housing or block only one of the ends (209 or 210) and allow the displacement of the other (210 or 209) in its corresponding housing, as shown in Figures 22c and 22d . In FIG. 22c, the clearance "e₁" allows a displacement "d" of the corresponding end. of the stiffener. But the relative displacement longitudinal can be done against the action of an elastic system (97), as shown in Figure 22d.

La figure 22e représente un cas où la hauteur du raidisseur peut être réglée par tout moyen tel que vissage ou autres.FIG. 22e represents a case where the height of the stiffener can be adjusted by any means such as screwing or the like.

La figure 22f représente un cas où le raidisseur peut être précontraint longitudinalement par un moyen de vissage longitudinal par exemple.FIG. 22f represents a case where the stiffener can be prestressed longitudinally by a longitudinal screwing means for example.

Les moyens de retenue longitudinaux et verticaux (90, 91) pourraient aussi être constitués par des systèmes d'articulation (90', 91') comme cela est représenté aux figures 24 et 26. Ainsi, les extrémités avant (209) et arrière (210) du raidisseur (2) sont liées à l'embase (1) par un axe d'articulation transversal (90, 91), ladite articulation (90', 91') étant retenue à l'embase (1) par un support d'articulation (80) comprenant deux parois latérales de retenue (81, 82).The longitudinal and vertical retaining means (90, 91) could also be constituted by articulation systems (90 ′, 91 ′) as shown in FIGS. 24 and 26. Thus, the front (209) and rear ( 210) of the stiffener (2) are linked to the base (1) by a transverse articulation axis (90, 91), said articulation (90 ', 91') being retained at the base (1) by a support articulation (80) comprising two lateral retaining walls (81, 82).

L'étrier (4, 4a, 4b) représenté précédemment, a la forme générale d'un "U" renversé, mais il pourrait en être autrement, comme par exemple cela est représenté à la figure 25. Selon cette variante, l'étrier (4) est formé par une pièce ayant la forme générale d'un "U" dont la paroi transversale (46) est disposée entre le raidisseur (2) et son embase (1).The bracket (4, 4a, 4b) shown above has the general shape of an inverted "U", but it could be otherwise, as for example that is shown in FIG. 25. According to this variant, the bracket (4) is formed by a part having the general shape of a "U" whose transverse wall (46) is disposed between the stiffener (2) and its base (1).

Les figures 27 à 30 montrent une variante de réalisation du support (4a, 4b). Selon cette variante, le support est constitué de deux matériaux différents : une première partie (161) en matériau (M1), par exemple rigide et une deuxième partie (162) en un autre matériau (M2), par exemple plus souple. La partie rigide (161) comprend une partie horizontale (163) et deux parties latérales (164), la partie souple étant disposée sous la partie horizontale et se trouvant du côté du centre du ski.Figures 27 to 30 show an alternative embodiment of the support (4a, 4b). According to this variant, the support consists of two different materials: a first part (161) made of material (M1), for example rigid and a second part (162) made of another material (M2), for example more flexible. The rigid part (161) comprises a horizontal part (163) and two lateral parts (164), the flexible part being arranged under the horizontal part and being on the side of the center of the ski.

La figure 31 est une vue similaire à la figure 27 montrant une variante selon laquelle les parties souples (162) ne sont pas tournées l'une vers l'autre vers le centre du ski, mais tournées du côté des extrémités avant et arrière dudit ski.Figure 31 is a view similar to Figure 27 showing a variant in which the flexible parts (162) are not turned towards each other towards the center of the ski, but turned towards the front and rear ends of said ski .

Les figures 32 à 34 montrent une variante de réalisation de l'invention dans laquelle le support (4) comprend une ou plusieurs couches de renforts de façon à compléter les caractéristiques de raideur de l'embase (1). Une telle construction peut être utile notamment lorsque l'on désire réduire la hauteur du complexe embase/support tout en conservant des caractéristiques mécaniques suffisantes.Figures 32 to 34 show an alternative embodiment of the invention in which the support (4) comprises one or more layers of reinforcements so as to complete the stiffness characteristics of the base (1). Such a construction can be useful in particular when it is desired to reduce the height of the base / support complex while retaining sufficient mechanical characteristics.

La figure 32 illustre le cas où l'étrier est muni d'un insert de renfort (470) ayant la forme d'une plaque insérée dans une coque (471) en forme de U renversé. L'insert peut être une plaque métallique en alliage d'aluminium par exemple ou une plaque en matériau composite. Le support (4) peut être obtenu par moulage par injection de la coque (48) en matière plastique. Dans ce cas, on peut bien entendu prévoir que l'insert soit solidarisé à la coque lors de l'injection.FIG. 32 illustrates the case where the stirrup is provided with a reinforcement insert (470) having the form of a plate inserted in a shell (471) in the shape of an inverted U. The insert can be a metal plate of aluminum alloy for example or a plate of composite material. The support (4) can be obtained by injection molding of the plastic shell (48). In this case, one can of course provide that the insert is secured to the shell during injection.

La figure 33 illustre le cas où l'étrier est constitué d'une coque de renfort (480) en forme de U renversé sur laquelle est solidarisée une couche de décor (481). La coque de renfort (480) peut être réalisée d'une ou plusieurs couches de matériaux composites de tout type comme vu précédant pour la constitution des couches de renforts de l'embase.FIG. 33 illustrates the case where the stirrup consists of a reinforcing shell (480) in the shape of an inverted U on which a layer of decoration (481) is secured. The reinforcing shell (480) can be made of one or more layers of composite materials of any type as seen above for the constitution of the reinforcing layers of the base.

De même, la couche de décor (481) peut être en matière plastique telle que polyamide ou autre.Likewise, the decor layer (481) can be made of a plastic material such as polyamide or the like.

La figure 34 illustre la structure interne du ski de l'invention dans la région où s'étend le support (4).FIG. 34 illustrates the internal structure of the ski of the invention in the region where the support extends (4).

Dans ce cas la structure de l'embase (1) comprend entre autre, une couche de glissement (109), des éléments de renfort inférieurs (110, 111), un noyau (105). Les éléments de renfort supérieurs ne recouvrent pas le noyau, contrairement au cas de la figure 6, et sont remplacés par l'élément de renfort (480) du support (4).In this case the structure of the base (1) comprises inter alia, a sliding layer (109), lower reinforcing elements (110, 111), a core (105). The upper reinforcement elements do not cover the core, unlike in the case of FIG. 6, and are replaced by the reinforcement element (480) of the support (4).

Bien entendu, le support (4) peut s'étendre plus largement au delà de la zone de montage des fixations, ce qui peut être particulièrement avantageux dans la mesure où sa fonction n'est pas uniquement celle de devoir transmettre les sollicitations du skieur sur l'embase mais également celle d'intervenir dans la distribution de raideur le long du ski.Of course, the support (4) can extend more widely beyond the area for mounting the bindings, which can be particularly advantageous insofar as its function is not only that of having to transmit the stresses of the skier on the base but also that of intervening in the distribution of stiffness along the ski.

Les figures 35 à 37 présentent un mode de réalisation dans lequel le raidisseur est de conception particulière de façon à limiter son encombrement et donc à réduire la hauteur des fixations par rapport à la neige. Cette diminution de hauteur permet notamment une meilleure efficacité de l'utilisation des freins de ski.Figures 35 to 37 show an embodiment in which the stiffener is of a particular design so as to limit its size and therefore to reduce the height of the bindings relative to the snow. This reduction in height notably allows better efficiency in the use of ski brakes.

Le raidisseur (2), dans ce cas, se compose de deux profilés centraux (24, 25) de longueur utile L3 au moins égale ou supérieure à la longueur de la zone prévue pour le montage des fixations (5).The stiffener (2), in this case, consists of two central sections (24, 25) of useful length L3 at least equal to or greater than the length of the area provided for mounting the fasteners (5).

De même, les profilés sont espacés l'un de l'autre d'une distance l3 suffisante à la largeur des fixations (5).Similarly, the profiles are spaced from each other by a distance l3 sufficient for the width of the fasteners (5).

Des organes d'accouplement avant et arrière (26, 27) permettent de relier statiquement chacune des extrémités des profilés (24, 25).Front and rear coupling members (26, 27) make it possible to statically connect each of the ends of the profiles (24, 25).

Chacun de ces organes (26, 27) est fixé par une liaison rigide ou souple à l'embase (1) du ski.Each of these members (26, 27) is fixed by a rigid or flexible connection to the base (1) of the ski.

L'étrier (4) a la forme générale d'une plaque munie de rebords latéraux (44, 45) recouvrant partiellement ou totalement les profilés et permettant ainsi leur retenue en cas de flambage latéral de chacun d'eux. L'étrier est d'autre part relié dans sa partie centrale (46) directement à l'embase par tout moyen de liaison.The stirrup (4) has the general shape of a plate provided with lateral flanges (44, 45) partially or totally covering the profiles and thus allowing their retention in the event of lateral buckling of each of them. The stirrup is also connected in its central part (46) directly to the base by any connecting means.

Les profilés peuvent éventuellement être intégrés latéralement, en partie ou totalement dans des logements (14) de l'embase de forme complémentaire, de façon à limiter au mieux leur encombrement.The profiles can optionally be integrated laterally, partially or completely in housings (14) of the base of complementary shape, so as to limit their overall size.

Les profilés sont de préférence réalisés en matériau composite par pultrusion et assemblés par moulage, collage ou tout autre moyen aux organes d'accouplement (26, 27). Ces derniers peuvent être de toute nature, forme ou structure. On peut prévoir, notamment leur constitution en matériau de renfort à base de fibres et résine thermodurcissable par exemple.The profiles are preferably made of composite material by pultrusion and assembled by molding, gluing or any other means to the coupling members (26, 27). These can be of any kind, shape or structure. One can foresee, in particular their constitution in reinforcing material based on fibers and thermosetting resin for example.

Les figures 38 à 41 représentent un mode de réalisation particulier de l'invention dans lequel le raidisseur est constitué par un profilé renforcé dont la forme est évolutive longitudinalement. Comme le montre la figure 41, le raidisseur a la forme d'une plaque plane au voisinage de ses extrémités puis présente une nervure centrale (28) dont la largeur "l6" augmente progressivement en direction de la zone médiane du raidisseur, comme le montre les figures 39 et 40. Cette forme évolutive permet notamment de pouvoir faire varier la rigidité propre du raidisseur en fonction de sa position longitudinale considérée. Il présentera, en effet, une rigidité supérieure au centre et diminuant progressivement vers les extrémités et joue ainsi le même rôle qu'un raidisseur dont la courbe d'épaisseur et la section varient le long du ski. Ce mode de réalisation présente l'avantage par rapport à ceux décrits précédemment d'être facilement réalisable par la technique des TRE (Thermoplastique Renforcé Estampable), SMC (Sheet Molding Compound) ou par pultrusion par exemple. Le profilé peut être recouvert d'une couche superficielle destinée à le protéger et à recevoir éventuellement un décor (non représenté).Figures 38 to 41 show a particular embodiment of the invention in which the stiffener is constituted by a reinforced profile whose shape is longitudinally progressive. As shown in FIG. 41, the stiffener has the shape of a flat plate in the vicinity of its ends and then has a central rib (28) whose width "l6" gradually increases towards the middle zone of the stiffener, as shown FIGS. 39 and 40. This evolving shape makes it possible in particular to be able to vary the inherent stiffness of the stiffener as a function of its longitudinal position considered. It will, in fact, have a rigidity greater in the center and gradually decreasing towards the ends and thus play the same role as a stiffener whose thickness curve and section vary along the ski. This embodiment has the advantage compared to those described above of being easily achievable by the technique of TRE (Thermoplastic Reinforced Stampable), SMC (Sheet Molding Compound) or by pultrusion for example. The profile can be covered with a surface layer intended to protect it and possibly receive a decoration (not shown).

Bien entendu l'invention n'est pas limitée aux modes de réalisation décrits et représentés à titre d'exemples, mais elle comprend aussi tous les équivalents techniques ainsi que leurs combinaisons et d'autres variantes sont également possibles sans pour autant sortir du cadre de l'invention.Of course, the invention is not limited to the embodiments described and shown by way of examples, but it also includes all the technical equivalents as well as their combinations and other variants are also possible without departing from the scope of the invention.

Claims (32)

Ski caractérisé en ce qu'il est constitué par un premier ensemble inférieur ou embase (1) dont l'extrémité avant est relevée pour former la spatule (117), et un deuxième ensemble supérieur ou raidisseur (2), dont les extrémités avant (209) et arrière (210) sont liées à ladite embase par des moyens de liaison (3) souple et/ou partiellement rigide, et comprenant au moins un support ou étrier (4) lié à l'embase destiné à recevoir les fixations (5, 51, 52) pour le maintien de la chaussure sur le ski.Ski characterized in that it is constituted by a first lower assembly or base (1) whose front end is raised to form the tip (117), and a second upper assembly or stiffener (2), whose front ends ( 209) and rear (210) are linked to said base by flexible and / or partially rigid connection means (3), and comprising at least one support or stirrup (4) linked to the base intended to receive the fasteners (5 , 51, 52) for holding the boot on the ski. Ski selon la revendication 1, caractérisé en ce que le raidisseur (2) a une longueur "L2" inférieure à la longueur "L1" de la surface de l'embase (1) en contact avec la neige.Ski according to claim 1, characterized in that the stiffener (2) has a length "L2" less than the length "L1" of the surface of the base (1) in contact with the snow. Ski selon la revendication 2, caractérisé en ce que la longueur "L2" du raidisseur est comprise entre 50 et 100 % de la longueur "L1".Ski according to claim 2, characterized in that the length "L2" of the stiffener is between 50 and 100% of the length "L1". Ski selon la revendication 3, caractérisé en ce que l'extrémité avant (209) du raidisseur (2) est située entre la zone (119) de contact spatule de l'embase et l'extrémité avant (120) de la zone de montage des fixations.Ski according to claim 3, characterized in that the front end (209) of the stiffener (2) is located between the tip contact area (119) of the base and the front end (120) of the mounting area fixings. Ski selon la revendication 3, caractérisé en ce que l'extrémité arrière (210) du raidisseur (2) est située entre la zone (121) de contact talon de l'embase et l'extrémité arrière (122) de la zone de montage des fixations.Ski according to claim 3, characterized in that the rear end (210) of the stiffener (2) is located between the heel contact zone (121) of the base and the rear end (122) of the mounting zone fixings. Ski selon l'une quelconque des revendications précédentes, caractérisé en ce que le milieu (211) du raidisseur (2) est situé au niveau du milieu (123) de la zone en contact avec la neige de l'embase.Ski according to any one of the preceding claims, characterized in that the middle (211) of the stiffener (2) is located at the middle (123) of the area in contact with the snow on the base. Ski selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le milieu (211) du raidisseur (2) est situé en avant du milieu (123) de la zone en contact avec la neige de l'embase.Ski according to any one of claims 1 to 5, characterized in that the middle (211) of the stiffener (2) is located in front of the middle (123) of the area in contact with the snow on the base. Ski selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le milieu (211) du raidisseur (2) est situé en arrière du milieu (123) de la zone en contact avec la neige de l'embase.Ski according to any one of claims 1 to 5, characterized in that the middle (211) of the stiffener (2) is located behind the middle (123) of the area in contact with the snow on the base. Ski selon l'une quelconque des revendications précédentes, caractérisé en ce que la largeur "l2" du raidisseur.(2) est dans la zone du support (4) inférieure à la largeur "l1" de l'embase (1) dans cette même zone.Ski according to any one of the preceding claims, characterized in that the width "l2" of the stiffener (2) is in the region of the support (4) less than the width "l1" of the base (1) in this same area. Ski selon la revendication 9, caractérisé en ce que la hauteur "h1" de l'embase (1) et/ou la hauteur "h2" du raidisseur est constante.Ski according to claim 9, characterized in that the height "h1" of the base (1) and / or the height "h2" of the stiffener is constant. Ski selon la revendication 9, caractérisé en ce que la hauteur "h1" de l'embase (1) et/ou la hauteur "h2" du raidisseur est variable.Ski according to claim 9, characterized in that the height "h1" of the base (1) and / or the height "h2" of the stiffener is variable. Ski selon la revendication 11, caractérisé en ce que la hauteur "h2" du raidisseur diminue vers l'avant.Ski according to claim 11, characterized in that the height "h2" of the stiffener decreases towards the front. Ski selon la revendication 11, caractérisé en ce que la hauteur "h2" du raidisseur diminue vers l'arrière.Ski according to claim 11, characterized in that the height "h2" of the stiffener decreases towards the rear. Ski selon l'une quelconque des revendications précédentes, caractérisé en ce que l'embase (1) et'ou le raidisseur (2) est une poutre de forme allongée.Ski according to any one of the preceding claims, characterized in that the base (1) and the stiffener (2) is a beam of elongated shape. Ski selon la revendication 14, caractérisé en ce que l'embase (1) est une poutre constituée par un noyau (105) disposé entre deux renforts, un premier renfort supérieur (101) et un deuxième renfort inférieur (110,111), et comprend une couche de glissement (109) comprenant latéralement deux carres métalliques latérales (107,108), ledit renfort supérieur étant recouvert au moins en partie d'une couche superficielle (112).Ski according to claim 14, characterized in that the base (1) is a beam constituted by a core (105) disposed between two reinforcements, a first upper reinforcement (101) and a second lower reinforcement (110,111), and comprises a sliding layer (109) laterally comprising two lateral metal edges (107, 108), said upper reinforcement being covered at least in part with a surface layer (112). Ski selon la revendication 15, caractérisé en ce que la couche superficielle (112) de l'embase (1) est interrompue au niveau du raidisseur (2).Ski according to claim 15, characterized in that the surface layer (112) of the base (1) is interrupted at the level of the stiffener (2). Ski selon l'une quelconque des revendications 14, 15 ou 16, caractérisé en ce que le raidisseur (2) est une poutre constituée par un noyau (201) disposé entre deux renforts, un premier renfort supérieur (204) et un deuxième renfort inférieur (203), ledit renfort supérieur étant recouvert d'une couche superficielle (208).Ski according to any one of claims 14, 15 or 16, characterized in that the stiffener (2) is a beam constituted by a core (201) disposed between two reinforcements, a first upper reinforcement (204) and a second lower reinforcement (203), said upper reinforcement being covered with a surface layer (208). Ski selon l'une quelconque des revendications précédente, caractérisé en ce que le raidisseur (2) est lié à l'embase par une liaison (3, 31, 32) localisée à ses deux extrémités.Ski according to any one of the preceding claims, characterized in that the stiffener (2) is linked to the base by a link (3, 31, 32) located at its two ends. Ski selon la revendication 18, caractérisé en ce que les extrémités (209,210) du raidisseur (2) sont reliées à l'embase (1) par des axes d'articulation transversaux (90',91').Ski according to claim 18, characterized in that the ends (209, 210) of the stiffener (2) are connected to the base (1) by transverse articulation axes (90 ', 91'). Ski selon la revendication 18, caractérisé en ce que les extrémités (209,210) du raidisseur (2) sont retenues sur l'embase (1) par des moyens de retenue longitudinaux, latéraux et verticaux (90,91).Ski according to claim 18, characterized in that the ends (209, 210) of the stiffener (2) are retained on the base (1) by longitudinal, lateral and vertical retaining means (90, 91). Ski selon la revendication 18, caractérisé en ce que la liaison (3) est du type souple.Ski according to claim 18, characterized in that the connection (3) is of the flexible type. Ski selon la revendication 21, caractérisé en ce que la liaison souple (3) est réalisée par deux interfaces, un premier interface souple avant (31) disposé sous l'extrémité avant (209) du raidisseur (2) et un deuxième interface souple arrière (32) disposé sous l'extrémité arrière (210) dudit raidisseur (2).Ski according to claim 21, characterized in that the flexible connection (3) is produced by two interfaces, a first front flexible interface (31) disposed under the front end (209) of the stiffener (2) and a second rear flexible interface (32) disposed under the rear end (210) of said stiffener (2). Ski selon la revendication 22 caractérisé en ce que les interfaces (31 et 32) sont constitués par une feuille en matériau élastique ou visco élastique.Ski according to claim 22 characterized in that the interfaces (31 and 32) consist of a sheet of elastic material or visco elastic. Ski selon la revendication 18, caractérisé en ce que la liaison (3) est du type rigide.Ski according to claim 18, characterized in that the connection (3) is of the rigid type. Ski selon l'une quelconque des revendications précédentes, caractérisé en ce que le support (4) a la forme d'un étrier ayant la forme d'un "U" renversé et comprend une paroi supérieure (40) prolongée latéralement et vers le bas par deux parois latérales (41,42) pour constituer un logement (43) inférieur ayant la forme d'un profil en creux s'étendant longitudinalement destiné au passage du raidisseur (2).Ski according to any one of the preceding claims, characterized in that the support (4) has the shape of a stirrup having the shape of an inverted "U" and comprises an upper wall (40) extended laterally and downwards by two side walls (41,42) to form a lower housing (43) in the form of a hollow profile extending longitudinally intended for the passage of the stiffener (2). Ski selon la revendication 25, caractérisé en ce que les dimensions du logement aussi bien horizontale "l4" que verticale "h4" sont supérieures aux dimensions horizontale "l2" et verticale "h2" du raidisseur pour former un espace "e" nécessaire à la liberté de ce dernier.Ski according to claim 25, characterized in that the dimensions of the housing both horizontal "l4" and vertical "h4" are greater than the horizontal "l2" and vertical "h2" dimensions of the stiffener to form a space "e" necessary for the freedom of the latter. Ski selon la revendication 26, caractérisé en ce que le support (4) reçoit à l'avant la fixation avant (51) et s'étend vers l'arrière sur une longueur "L4" jusque sous la fixation arrière (52).Ski according to claim 26, characterized in that the support (4) receives at the front the front binding (51) and extends rearward over a length "L4" as far as the rear binding (52). Ski selon l'une quelconque des revendications 1 à 26, caractérisé en ce qu'il comprend deux supports (4) espacés l'un de l'autre, un premier support avant (4a) sur lequel est fixé la butée avant (51) de retenue de la chaussure, et un deuxième support ou support arrière (4b) sur lequel est fixé la talonnière (52).Ski according to any one of claims 1 to 26, characterized in that it comprises two supports (4) spaced from each other, a first front support (4a) on which the front stop (51) is fixed shoe retainer, and a second support or rear support (4b) on which is fixed the heel piece (52). Ski selon l'une quelconque des revendications précédentes, caractérisé en ce que le ou les supports (4, 4a, 4b) est d'une seule et même pièce ou est constitué de différentes pièces.Ski according to any one of the preceding claims, characterized in that the support (s) (4, 4a, 4b) is in one and the same piece or is made up of different pieces. Ski selon la revendication 29, caractérisé en ce que le support est constitué par une partie de la fixation (5, 51, 52) correspondante.Ski according to claim 29, characterized in that the support consists of a part of the corresponding binding (5, 51, 52). Ski selon l'une quelconque des revendications précédentes, caractérisé en ce que la liaison (6) entre le support (4, 4a, 4b) et l'embase est rigide.Ski according to any one of the preceding claims, characterized in that the connection (6) between the support (4, 4a, 4b) and the base is rigid. Ski selon l'une quelconque des revendications 1 à 30, caractérisé en ce que la liaison (6) entre le support (4, 4a, 4b) et l'embase est souple et réalisée par une interface (60) en matériau souple.Ski according to any one of claims 1 to 30, characterized in that the connection (6) between the support (4, 4a, 4b) and the base is flexible and produced by an interface (60) made of flexible material.
EP91117194A 1990-12-14 1991-10-09 Ski containing base, upper body and attaching member for bindings Expired - Lifetime EP0490043B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91117194T ATE101532T1 (en) 1990-12-14 1991-10-09 SKI WITH TREAD PART, UPPER BODY AND SUPPORT FOR BINDINGS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9016048 1990-12-14
FR9016048A FR2670393B1 (en) 1990-12-14 1990-12-14 SKI FOR WINTER SPORTS CONSISTING OF A BASE, A STRAINER, AND A SUPPORT FOR BINDINGS.
FR9105012A FR2675390B1 (en) 1991-04-16 1991-04-16 WINTER SPORTS SKI COMPRISING A BASE, A STRAINER AND A SUPPORT FOR BINDINGS.
FR9105012 1991-04-16

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EP0490043A1 true EP0490043A1 (en) 1992-06-17
EP0490043B1 EP0490043B1 (en) 1994-02-16

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EP91117194A Expired - Lifetime EP0490043B1 (en) 1990-12-14 1991-10-09 Ski containing base, upper body and attaching member for bindings

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US (1) US5393086A (en)
EP (1) EP0490043B1 (en)
JP (1) JPH04292181A (en)
DE (1) DE69101217T2 (en)

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EP1952856A1 (en) * 2007-02-02 2008-08-06 ATOMIC Austria GmbH Ski or snowboard with a plate-like force transmission element
US7946608B2 (en) 2007-02-02 2011-05-24 Atomic Austria Gmbh Ski or snowboard with a plate-type force-transmitting element
US8480112B2 (en) 2008-12-11 2013-07-09 Atomic Austria Gmbh Ski or snowboard with a board-like force-transmitting element

Also Published As

Publication number Publication date
JPH04292181A (en) 1992-10-16
US5393086A (en) 1995-02-28
DE69101217T2 (en) 1994-06-09
EP0490043B1 (en) 1994-02-16
DE69101217D1 (en) 1994-03-24

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