EP0510308B1 - Dämpfungsvorrichtung für Skier - Google Patents

Dämpfungsvorrichtung für Skier Download PDF

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Publication number
EP0510308B1
EP0510308B1 EP92101946A EP92101946A EP0510308B1 EP 0510308 B1 EP0510308 B1 EP 0510308B1 EP 92101946 A EP92101946 A EP 92101946A EP 92101946 A EP92101946 A EP 92101946A EP 0510308 B1 EP0510308 B1 EP 0510308B1
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EP
European Patent Office
Prior art keywords
ski
blade
flexion
ski according
flexible
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.)
Expired - Lifetime
Application number
EP92101946A
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English (en)
French (fr)
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EP0510308A1 (de
Inventor
Axel Phelipon
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
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Publication date
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Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP0510308A1 publication Critical patent/EP0510308A1/de
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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
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/075—Vibration dampers

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 to this type of skis.
  • ski we already know different types of ski and there are many variations. These consist of an elongated beam whose front end is curved upwards to form a spatula, the rear end also being more slightly to form the heel.
  • the structure generally comprises peripheral protection 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. .
  • Document WO-A-8801189 relates to a ski provided with attached elements making it possible to modify the pressure distribution on the ski which comprise a blade made of very rigid material connected to one end of the ski by a fixed connection and to the other end by a bracing element whose height and / or volume can be modified in order to vary the pressure exerted by the blade on the ski.
  • the present invention seeks to remedy the various drawbacks mentioned above and proposes a particularly simple, effective and reliable solution to the problems of damping vibrations by avoiding modifying the pressure distribution on the ski.
  • the ski according to the present invention is provided with a device intended to dampen vibrations comprising at least one blade oriented longitudinally and connected to the ski by a rigid connection means, said blade comprising at least one free end, able to move longitudinally when the ski is flexed and being spaced longitudinally of said rigid connection means; this ski is characterized in that said free end is connected to the ski by a flexible means of damping the longitudinal shear stresses during the longitudinal displacements of said free end.
  • the rigid connection means is located at the other end of said flexion blade.
  • the bending blade is an aluminum or composite material blade.
  • the flexion blade is fixed to the upper surface of the ski or in its structure.
  • Figures 1 to 5 show a first embodiment.
  • Figure 1 is a side view.
  • Figure 2 is a top view.
  • Figure 3 is a cross-sectional view along T1.
  • Figure 4 is a cross-sectional view along T2.
  • Figure 5 is an exploded partial perspective view.
  • Figures 6 and 7 show two variants in top view.
  • FIG. 8 is a sectional view along T3 of the variant of FIG. 7.
  • Figures 9, 9a, 10, 10a show in side view, how the ski equipped with the device works.
  • Figure 9 shows the ski in the rest position, not bent.
  • Figure 9a shows a detail of Figure 9 on a larger scale.
  • Figure 10 shows the ski in the bent position.
  • Figure 10a shows a detail of Figure 10 on a larger scale.
  • Figures 11 and 12, 13 and 14, 15 and 16, 17 and 18, 19 and 20, 21 and 22 are views similar to Figures 1 and 2 showing other alternative embodiments.
  • FIG. 19a is a cross section along T3 of FIGS. 19 and 20.
  • Figures 23 and 24 are partial views on a larger scale showing in side view (Figure 23) and in top view ( Figure 24) an improvement.
  • Figure 25 also shows in side view, another detail concerning a variant.
  • Figures 26 and 27 show in top view ( Figure 27) and in longitudinal section along T4 ( Figure 26) another embodiment.
  • Figure 28 is a side view showing another alternative embodiment.
  • Figure 29 is another side view showing a variant.
  • the ski (1) comprising the device consists of an elongated beam having its own distribution of thickness, of width and therefore its own stiffness. It comprises a central part (2) also called a mounting area for the bindings (3, 4) intended to retain the boot on the ski, the front binding (3) being commonly called a stop, while the rear binding (4) is called usually heel.
  • the front end (5) of the ski (1) is raised to form the tip (6), while the rear end (7) is also raised to form the heel (8) of the ski.
  • the beam further comprises a lower sliding surface (9) and an upper surface (10). Note that the contact of the lower surface (9) with the snow takes place between the front contact point (11) and the rear contact point (12) corresponding to the places where said lower surface begins to rise.
  • the damping device according to the invention consists of a flexion blade (13, 13a, 13b) disposed on the upper surface (10) of the ski outside of its structure itself.
  • the blade is connected to the ski by rigid connection means (15, 150) and at least means for flexible connection (17, 18, 180) spaced apart longitudinally from said rigid connection means (15, 150).
  • FIGS. 1 to 10 show a first variant according to which the damping device is such that it is the rear end (130) of the flexion blade (13) which is fixed to the ski in the central zone (2), and extends forward (AV).
  • the bending blade (13) is for example constituted by an aluminum strip of thickness "e1" between 1 and 5 millimeters, of width "l1" between 10 and 60 millimeters and of length between 100 and 1200 millimeters ..
  • Its rear end (130) is rigidly fixed to the ski at the stop (3) by rigid connection means.
  • the rear end (130) of the aluminum strip is for example arranged under the base plate (14) of the fixing (3) and retained with it by the screws (15).
  • the end (130) of the strip ends in an enlarged part (130 ') comprising holes (16) allowing the passage of the fixing screws (15).
  • the front end (131) of the flexion blade (13) is linked to the upper surface of the ski by damping means (17) constituting the flexible connection means.
  • an interface (18) produced by a layer of a flexible material of the elastic type and in particular of the viscoelastic type. This layer of thickness "e2" of between 0.5 and 4 millimeters is glued or welded on the one hand under the lower surface (132) of the blade and on the other hand on the upper surface (10) of said ski (1 ).
  • the material used can be elastic with a density of 10 to 85 shores A or a viscoelastic material with a modulus of elasticity of 15 to 160 megapascals, a hardness of 50 to 95 shores A and a damping value of 0.13 to 0.72.
  • the interface (18) is fixed on the blade (13) and on the upper surface of the ski either by a thermosetting resin of the epoxy poylester, vinylester or polyurethane type, or by a thermoplastic film or any other means.
  • the blade is fixed in front the stop, while in Figure 7, it is fixed behind.
  • the blade (13) passes freely under the base plate (14) of said stop (see Figure 8).
  • the lower surface of the base plate includes a hollow profile (140) whose dimensions are greater than the dimensions of the blade (13) to allow passage and free movement.
  • the blade is then fixed directly to the ski by screws (150) in the area between the front binding (3) and the rear binding (4).
  • Figures 9, 9a, 10, 10a schematically show the operation of depreciation.
  • Figure 9 shows the ski in the rest state and Figure 10, during bending.
  • the point "a" of the front end (131) of the flexion blade corresponds to a point "b" of the upper surface (10) of the ski.
  • d relative longitudinal displacement
  • the damping device can be arranged at the rear of the ski, as shown in FIGS. 11 and 12.
  • the flexion blade (13) is fixed to the ski rigidly by its end front (131) and extends rearward.
  • the rear end (130) of the blade being linked to the ski by damping means (17) constituted as before by an interface (18) made of flexible material.
  • the ski can comprise both a front bending blade (13a) and a rear bending blade (13b), as shown in FIGS. 13 and 14.
  • Figures 15 and 16 show another embodiment according to which the flexion blade (13) is fixed to the front of the ski by its front end (131) by means of screws (150).
  • the blade (13) then extending rearward and its rear end (130) is linked to the ski and more precisely at its upper surface (10) by damping means (17) which are identical to those described above, that is to say by a bonded interface (18) made of flexible material.
  • FIGs 17 and 18 show another variant in which the blade (13) is fixed to the rear of the ski by screws (150) and extends forward to be connected to the ski by an interface (18) in an area behind the heel.
  • the bending blades can be more or less long.
  • the blade (13) of Figure 19 is freely engaged under the stop (3) to extend beyond the latter, to be linked elastically to the ski.
  • the base plate (14) comprises a hollow profile (140) whose dimensions allow the passage and the free movement of the bending blade (13).
  • Figures 21 to 24 show a variant in which there is a multiplication of longitudinal effects due to the flexing of the ski.
  • the ski comprises two flexion blades (13a, 13b): a first front flexion blade (13a) and a second rear flexion blade (13b).
  • the front flexion blade (13a) is fixed to the ski in front of the stop (3) by its front end (131a) by means of screws (150) and extends backwards passing freely under said stop (3).
  • the rear flexion blade (13b) is fixed to the ski behind the heel piece (4) by its rear end (130b) to extend forwards, passing freely under said heel piece (4) as far as the central zone. (2) between the two fixings (3, 4). It is noted that there is overlap of the two ends.
  • the rear end (130a) of the first blade (13a) being engaged under the front end (131b) of the second blade (13b).
  • the covering is done over a length "l3".
  • the damping means consist of an interface (18) constituted by a layer of flexible or viscoelastic material, as above, but disposed not on the ski, but between the two blades in their overlap zone.
  • the rear ends (130a) of the first blade (13a) and the front (131b) of the second blade (13b) are not at all linked to the ski.
  • a vertical retainer such as a screw (19) housed in an oblong hole (190) produced in the stack of the two ends (130a and 131b) and of the damping layer, as shown in FIGS. 23 and 24.
  • the vertical restraint could also be achieved by an inverted U-shaped bracket or any other means.
  • FIG. 25 Another variant is shown in FIG. 25 where a second damping layer (180) is glued under the rear end (130a) of the first blade (13a) and to the upper surface of the ski (10).
  • the damping device is arranged outside the structure proper of the ski.
  • the skis most often consist of a core (101) covered by one or more layers of upper reinforcement (102), or even lower (103).
  • the top of the ski is generally covered by a layer of decorations (104), while the bottom comprises a sliding layer of polyethylene (105).
  • the bending blade in the example shown, is fixed under the upper reinforcement (102) and takes place in a housing (106) produced in the core. It goes without saying that it would not go beyond the scope of the invention whatever the place of the damping device. Indeed, the bending blade could be between the core (101) and the lower reinforcement (103) or even between the upper reinforcement (102) and the surface layer (104).
  • the bending blade shown and described above has a constant cross section, but it could be otherwise.
  • the section of the blade, in a cross section can be variable. Indeed, the width can vary, as well as the thickness.
  • FIG. 28 represents another variant in side view according to which the damping device is constituted by a blade (13c) fixed in its central part (132) and whose front (131) and rear (130) ends are elastically connected to the ski (1).
  • FIG. 29 shows a variant according to which the blades (13c) and (13b) linked elastically together in the central zone (2) of the ski are fixed at their ends by the corresponding ski bindings (3 and 4).

Landscapes

  • Laminated Bodies (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Vibration Prevention Devices (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Road Paving Structures (AREA)

Claims (17)

  1. Ski, der mit einer Vorrichtung versehen ist, die dazu bestimmt ist die Vibrationen zu dämpfen, die zumindest ein Blatt (13, 13a, 13b, 13c) aufweist, das in Längsrichtung ausgerichtet ist und mit dem Ski durch eine steife Verbindungseinrichtung (15, 150) verbunden ist, wobei das Blatt (13, 13a, 13b, 13c) zumindest ein freies Ende (130, 130a, 131, 131b) aufweist, das in der Lage ist sich in Längsrichtung zu verschieben, wenn der Ski in Durchbiegung beansprucht ist, und das in Längsrichtung von der steifen Verbindungseinrichtung (15, 150) beabstandet ist,
    dadurch gekennzeichnet, daß
    das freie Ende mit dem Ski durch eine nachgiebige Dämpfungseinrichtung (17, 18, 180) für die longitudinalen Schubbeanspruchungen während den Verschiebungen in Längsrichtung des freien Endes verbunden ist.
  2. Ski gemäß Anspruch 1, dadurch gekennzeichnet, daß die steife Verbindungseinrichtung (15, 150) sich am anderen Ende des Durchbiegungsblattes (13, 13a, 13b, 13c) befindet.
  3. Ski gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Durchbiegungsblatt (13, 13a, 13b, 13c) ein Blatt aus Aluminium ist.
  4. Ski gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Durchbiegungsblatt (13, 13a, 13b, 13c) aus zusammengesetztem Material ist.
  5. Ski gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Durchbiegungsblatt eine Breite "l₁" hat, die zwischen 10 und 60 Millimeter liegt, eine Dicke "e₁", die zwischen 1 und 5 Millimetern liegt, und eine Länge "L₁", die zwischen 10 und 1200 Millimetern liegt.
  6. Ski gemäß Anspruch 5, dadurch gekennzeichnet, daß die nachgiebigen Verbindungseinrichtungen (18, 180) durch eine Übergangsfläche aus nachgiebigem Material gebildet sind, die zwischen dem Durchbiegungsblatt (13, 13a, 13b, 13c) und dem Ski angeordnet ist.
  7. Ski gemäß Anspruch 6, dadurch gekennzeichnet, daß die Übergangsfläche (18, 180) eine Schicht aus elastischem oder viscoelastischem Material ist, die zum einen an das Ende des flexiblen Blattes (13, 13a, 13b, 13c) und zum anderen an den Ski geschweißt oder geklebt ist.
  8. Ski gemäß Anspruch 7, dadurch gekennzeichnet, daß die Schicht aus viscoelastischem Material eine Breite "l₂" hat, die zwischen 10 und 60 Millimetern liegt, eine Dicke "e₂", die zwischen 0,5 und 4 Millimetern liegt, und eine Länge "L₂", die zwischen 2 und 5 Zentimetern liegt.
  9. Ski gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Durchbiegungsblatt (13, 13a, 13b, 13c) auf der oberen Oberfläche (10) des Ski (1) zugeordnet und befestigt ist.
  10. Ski gemäß Anspruch 9, dadurch gekennzeichnet, daß das Durchbiegungsblatt (13, 13a, 13b, 13c) in dem Aufbau des Ski (1) angeordnet ist.
  11. Ski gemäß einem der Ansprüche 9 oder 10, dadurch gekennzeichnet, daß das flexible Blatt (13) sich zwischen dem zentralen Bereich (2) der Montage der Bindungen (3, 4) und dem vorderen Kontakt (11) erstreckt.
  12. Ski gemäß einem der Ansprüche 9 oder 10, dadurch gekennzeichnet, daß das flexible Blatt (13) sich zwischen dem zentralen Bereich (2) der Montage der Bindungen (3, 4) und dem hinteren Kontakt (12) erstreckt.
  13. Ski gemäß einem der Ansprüche 9 oder 10, dadurch gekennzeichnet, daß das Durchbiegungsblatt (13, 13a, 13b, 13c) sich gleichzeitig in dem zentralen Bereich (2) der Montage der Bindungen und in dem Bereich erstreckt, der sich zwischen dem zentralem Bereich (2) und dem vorderem Kontaktpunkt (11) befindet.
  14. Ski gemäß einem der Ansprüche 9 oder 10, dadurch gekennzeichnet, daß das Durchbiegungsblatt (13, 13a, 13b, 13c) sich gleichzeitig über den zentralen Bereich (2) der Montage der Bindungen und über den Bereich erstreckt, der sich zwischen dem zentralem Bereich (2) und dem hinterem Kontaktpunkt (12) befindet.
  15. Ski gemäß einem der Ansprüche 11 bis 14, dadurch gekennzeichnet, daß das Durchbiegungsblatt (13, 13a, 13b, 13c) steif an dem Ski mit seinem hinterem Ende (130) befestigt ist, während sein vorderes Ende (131) mit dem Ski durch eine nachgiebige Dämpfungsverbindung (17, 18) verbunden ist.
  16. Ski gemäß einem der Ansprüche 11 bis 14, dadurch gekennzeichnet, daß das Durchbiegungsblatt (13, 13a, 13b, 13c) steif an dem Ski mit seinem vorderem Ende (131) befestigt ist, während sein hinteres Ende (130) mit dem Ski durch eine nachgiebige Dämpfungsverbindung (17, 18) verbunden ist.
  17. Ski gemäß einem Anspruch 15 und 16, dadurch gekennzeichnet, daß er zwei Durchbiegungsblätter aufweist, ein vorderes Durchbiegungsblatt (13a) dessen vorderes Ende (131a) an dem vorderen Teil des Ski befestigt ist und sich nach hinten erstreckt, und ein hinteres Durchbiegungsblatt (13b), dessen hinteres Ende (130b) an dem hinteren Teil des Ski befestigt ist, um sich nach vorne zu erstrecken, wobei das hintere Ende (130a) des vorderes Blattes (13a) und das vordere Ende (131b) des hinteren Blattes (13b) sich in dem zentralen Bereich (2) überdecken und gemeinsam durch eine elastische Verbindung (18) verbunden sind.
EP92101946A 1991-04-22 1992-02-06 Dämpfungsvorrichtung für Skier Expired - Lifetime EP0510308B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9105421 1991-04-22
FR9105421A FR2675392B1 (fr) 1991-04-22 1991-04-22 Dispositif d'amortissement pour ski.

Publications (2)

Publication Number Publication Date
EP0510308A1 EP0510308A1 (de) 1992-10-28
EP0510308B1 true EP0510308B1 (de) 1994-10-05

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EP92101946A Expired - Lifetime EP0510308B1 (de) 1991-04-22 1992-02-06 Dämpfungsvorrichtung für Skier

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Country Link
US (1) US6270108B1 (de)
EP (1) EP0510308B1 (de)
JP (2) JPH0698962A (de)
AT (1) ATE112499T1 (de)
DE (1) DE69200489T2 (de)
FR (1) FR2675392B1 (de)

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EP0252910B1 (de) * 1985-02-15 1989-05-17 KUCHLER, Walter Gleitvorrichtung, insbesondere alpinski
DE3505255A1 (de) * 1985-02-15 1986-08-28 Walter Dr. 4712 Werne Kuchler Doppeldecker-ski
FR2602979B1 (fr) * 1986-08-20 1990-09-21 Salomon Sa Dispositif amortisseur de chocs et vibrations entre un ski et la fixation de la chaussure
DE3628476C2 (de) * 1986-08-22 1995-11-02 Head Sport Ag Ski mit Härteausgleichselementen und Härteregulierungselementen
FR2615404B1 (fr) * 1987-05-22 1989-09-01 Salomon Sa Ski a amortissement reparti
AT391088B (de) * 1988-05-26 1990-08-10 Head Sportgeraete Gmbh Ski mit daempfungslagen
AT400524B (de) * 1988-10-10 1996-01-25 Atomic Austria Gmbh Schi
IT1240702B (it) * 1989-06-26 1993-12-17 Fischer Gesellschaft M.B.H. Sci, in particolare per sport alpini.
DE9017486U1 (de) * 1990-12-27 1992-01-30 Marker Deutschland GmbH, 8116 Eschenlohe Tragplatte für eine Sicherheitsskibindung
FR2678517B1 (fr) * 1991-07-04 1993-10-15 Salomon Sa Perfectionnement pour dispositif d'amortissement pour ski.
US5284357A (en) * 1991-11-01 1994-02-08 Tinkler Michael R Apparatus and method for damping deflections and vibrations in skis

Also Published As

Publication number Publication date
JPH0698962A (ja) 1994-04-12
FR2675392A1 (fr) 1992-10-23
FR2675392B1 (fr) 1995-06-23
EP0510308A1 (de) 1992-10-28
JP3010416U (ja) 1995-05-02
ATE112499T1 (de) 1994-10-15
US6270108B1 (en) 2001-08-07
DE69200489T2 (de) 1995-02-09
DE69200489D1 (de) 1994-11-10

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