EP0609543B1 - Ski mit einer Dämpfungsvorrichtung - Google Patents

Ski mit einer Dämpfungsvorrichtung Download PDF

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Publication number
EP0609543B1
EP0609543B1 EP93120492A EP93120492A EP0609543B1 EP 0609543 B1 EP0609543 B1 EP 0609543B1 EP 93120492 A EP93120492 A EP 93120492A EP 93120492 A EP93120492 A EP 93120492A EP 0609543 B1 EP0609543 B1 EP 0609543B1
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EP
European Patent Office
Prior art keywords
ski
blade
shock absorbing
flexion
absorbing device
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
EP93120492A
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English (en)
French (fr)
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EP0609543A1 (de
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
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP0609543A1 publication Critical patent/EP0609543A1/de
Application granted granted Critical
Publication of EP0609543B1 publication Critical patent/EP0609543B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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 background, a monoski or a snowboard. It relates more particularly to a ski equipped with a vibration damping device.
  • skis made thanks to a structure more or less flexible.
  • the structure includes generally peripheral protective elements, internal elements of resistance to resist bending and torsional stresses, and a core. These elements are assembled by gluing or injection, the assembly being carried out generally hot in a mold having the final shape of the ski, with a front part strongly raised with a spatula, a rear part slightly raised in heel, arched central part.
  • the document EP-A-0 490 044 is a ski provided with a stiffener connected to a base flexibly by two remote flexible interfaces, one of the other.
  • the stiffener is used to complete the stiffness of the base without any effect depreciation is sought per se.
  • the present invention seeks to remedy the various drawbacks mentioned above and offers a particularly simple, effective solution and reliable to vibration damping problems, by combining the advantages of local vibration dissipation through deformation minimal, and offset by taking advantage of the displacement much more important.
  • the device of the invention also does not provide stiffness too much additional local skiing.
  • the ski equipped with a damping device of the type includes a bending piece connected to the ski by damping means.
  • the bending piece is a flexible bending blade whose stiffness is negligible compared to the ski itself and which is connected to the ski mobile way, by at least two damping means each forming a flexible connection means of the flexion blade on the ski, constituted by a soft material interface subjected to shear during relative movement of the bending blade with respect to the ski; said damping means being spaced longitudinally by a certain distance "D"; the first way being located in the zone of maximum deformation by the third bending mode and the first mode of torsion or in the zone of maximum deformation by the second flexion mode and the second means being located in the area of maximum deformation by the first bending mode.
  • D certain distance
  • the bending blade is a blade, a profile or a metal rod, made of aluminum or steel, or made of composite material. It has a section between 5 and 300 mm 2 . Its length is between 100 and 1,200 millimeters. It should be noted that the blade is flexible in bending and does not generate static, additional bending stiffness (that is to say that the stiffness is negligible compared to the rest of the ski).
  • Figures 1 to 3 show a first embodiment of the invention.
  • Figure 1 is a side view, Figures 1a and 1b illustrating details of construction.
  • Figure 2 is a top view.
  • Figure 3 is a side view of the ski in the flex position, the figures 3a and 3b illustrating operating details.
  • Figures 4 and 5 show another embodiment, Figure 4 being a partial top view, while FIG. 5 is a partial view back in perspective.
  • Figures 6 and 7 show a variant of the invention, Figure 6 being a side view of FIG. 7 being a top view.
  • Figures 8 to 10 illustrate an alternative embodiment, Figure 8 being a side view, Figure 9 being a top view, while Figure 10 is a sectional view along X-X.
  • Figure 11 is a side view according to a variant of the invention.
  • Figure 12 is a sectional view of a detail according to a mode particular.
  • Figures 13 and 14 are views from above and respectively the axis (A, AO) of a surfboard equipped with the device according to the invention.
  • the damping device (1) is intended to be connected to a ski with the general reference (2).
  • Said ski being known per se, it does not will not be described in detail.
  • it consists of a elongated beam (3) having its own distribution of thickness and width, therefore its own stiffness. It includes a central part (4) also called mounting the bindings (5, 6) intended to retain the boot on the ski, the binding front (5) being commonly known as a stop, while the rear fixing (6) is generally called heel.
  • the front end (7) of the ski (2) is raised to form the spatula (8), while the rear end (9) is also to form the heel (10) of the ski.
  • the beam also comprises a lower surface of sliding (11) and an upper surface (12). Note that the contact of the surface lower (11) with snow is between the front contact point (13) and the point rear contact (14) corresponding to the places where said lower surface starts to get up.
  • Said damping device bearing the general reference (1) is consisting of a bending blade (15).
  • the latter is for example constituted by an aluminum strip of thickness "e” between 1 and 5 millimeters, of width "l” between 10 and 60 millimeters and a length "L” included between 100 and 1,200 millimeters.
  • the bending blade (15) is connected to ski movably longitudinally by damping means, so as to be able to move completely and over its entire length relative to the ski.
  • the first connection zone (16) of said flexion blade (15) is connected skiing by first connecting means (M1), while the second zone of connection (17) of said blade (15) is connected to the ski by two second means of connection (M2).
  • the second zone of link (17) is spaced longitudinally from the first link area (16) of an average distance (D), while the first (M1) and the second (M2) connecting means are also damping means.
  • the damping device is, for example, disposed at the front of the ski; so, the bending blade (15) extends longitudinally over a length "L" between the front stop (5) and the front contact point (13).
  • FIGS 1 to 3 illustrate a first embodiment according to which the two connecting means (M1, M2) are flexible.
  • the front end constituting the first connection zone (16) of the flexion blade (15) is linked to the upper surface of the ski by a first damping means (M1) constituting the flexible connection means.
  • M1 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 "e1" is glued or welded on the one hand under the lower surface (19) of the blade, and on the other hand on the upper surface (12) of said ski (2).
  • the first interface (18) is fixed under the blade (15) and on the upper surface (12) of the ski, either by a thermosetting resin of the polyester, vinylester or polyurethane epoxy type, or by a thermoplastic film or any other means. .
  • the rear end constituting the second connection zone (17) of the flexion blade (15) is connected to the ski by a second damping means (M2) similar to the first means.
  • M2 second damping means
  • This layer of thickness "e2" is glued or welded on the one hand under the lower surface (19) of the blade, and on the other hand on the upper surface (12) of said ski (2).
  • the surface of the layer is between 200 and 6000 mm 2 .
  • the shape of the layer can be rectangular, but can take any other form.
  • the interface (20) is fixed under the blade (15) and on the upper surface of the ski, either by a thermosetting resin of the polyester, vinylester or polyurethane epoxy type, or by a thermoplastic film or any other means.
  • Figures 1, 1a, 1b, 3, 3a and 3b schematically illustrate the how depreciation works.
  • Figures 1, 1a and 1b show the ski in the state rest. In this resting situation, point “a1" of the front end (16) of the blade corresponds to point "b1" of the upper surface of the ski.
  • the bending blade (15) moves longitudinally by compared to the upper surface of the ski and we see that the point "a1” has moved forward, a distance “d1" from point "b1", while the point “a2” has moved backwards relative to the corresponding point "b2", from a distance "d2".
  • This displacement there is shearing of the layers of flexible material, and therefore damping.
  • the choice of interface material and of its dimensions determines the depreciation conditions.
  • the two interfaces (18) and (20) could be strictly identical, but they can advantageously be different. They could by example have different dimensions and / or be made of a material different. Thus, the thickness "e2" of the second interface (20) could be different, and for example greater than the thickness "e1" of the first interface (18), as illustrated in FIGS. 1 to 3. Similarly, the first interface (18) could be of harder material than the material of the second interface (20).
  • the first interface (18) which is located in the area where there is a maximum of deformation energy by the third mode of bending and the first mode of torsion, must therefore dissipate these two types of vibration, and it can, for this purpose, be made of a material viscoelastic with a hardness of around 60 Shores A and having a thickness about 0.5 millimeters.
  • the second interface (20) which is located in rear near the central area (2) of the ski, must dissipate the first bending mode and it can be made of a viscoelastic material of lower hardness at 20 Shores A and have a thickness of 4 millimeters.
  • the first interface (18) is located in the area where there is a maximum of deformation energy by the second flexion mode, and the second interface (20) which is located in rear near the central area (2) should dissipate the first bending mode.
  • the bending blade (15) constituting a connecting element between the two interfaces (18, 20), making it possible to obtain a relative displacement relative to the ski, more important from the rear end (17) thereof, as illustrated in Figures 3, 3a and 3b, where the displacement "d2" is greater than the displacement "d1".
  • the bending blade can take any desired shape and in particular that which is illustrated by way of example, in FIGS. 4 and 5.
  • the blade (15) is in the form of a profile having a rib central extending over a certain length of the blade, so as to avoid buckling of the blade.
  • an enlarged area (160) is linked to the ski surface by a front interface (180).
  • the blade or profile can be produced by injection in charged plastic material.
  • the modulus of the material as well that the section of the blade is chosen so as to obtain the stiffness in compression wanted.
  • the blade can be replaced by a simple cylindrical rod or rectangular of small section, so as not to exceed values in too much compression.
  • damping device (1) can be arranged on the ski, other than on the front, and in particular be arranged at the rear of the ski, as this is shown in Figures 6 and 7 where elements similar to the mode of previous production, have the same references. So everything that has been described for the device placed at the front, illustrated in Figures 1 to 5, is valid for the device placed at the back.
  • the bending blade could extend as far as the central zone (4) of the ski, as shown in FIGS. 8 to 10.
  • the bending blade (15) passes freely under the base plate (21) of the stop, the underside of which comprises a hollow profile (22) whose dimensions are larger than the dimensions of said blade (15), to allow passage and free movement.
  • the two means of connection and damping (M1, M2) are made by a layer of material viscoelastic bonded to both the blade and the ski by bonding or welding, so that the damping is obtained by the shearing of the elastic layer.
  • FIG. 11 illustrates a particular mode where a third means damping (M3) is arranged between modes (M1) and (M2), respectively mean distance "D1" from (M1) and “D2" from (M2).
  • the means (M3) can be of everything type, as described above, i.e. type with flexible interface, dry or viscous friction.
  • FIG. 12 illustrates the case of a device integrated into the structure of the ski.
  • the ski is provided with a longitudinal internal housing (40) and allows the blade to move freely when the ski is stressed.
  • Housing is covered with an internal reinforcing layer (41) and a protective top and decoration (42).
  • Figures 13 and 14 illustrate the use of the device of the invention on a snowboard (43).
  • the surf is used asymmetrically, the surfer adopts a position of conduct which causes it to exert efforts towards the toes (in “front side") and in the direction of the heels (in “back side”) along an axis (CC ') substantially corresponding to the axis of symmetry of the fasteners (44, 45).
  • the device may be advantageous to orient the device more or less by an angle ( ⁇ ) by relative to the median longitudinal axis (BB ') of the surf. It goes without saying that the device could have another provision and in particular that illustrated in fine lines interrupted. According to this arrangement, the bending blade (15 ') is not in the axis (BB ') of the snowboard (43) and extends substantially parallel to this axis.

Landscapes

  • Vibration Prevention Devices (AREA)
  • Fluid-Damping Devices (AREA)
  • Vibration Dampers (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Claims (9)

  1. Ski mit einer Dämpfungsvorrichtung vom Typ, der ein Durchbiegungsteil umfaßt, welches mit dem Ski durch Dämpfungsmittel verbunden ist, wobei das Durchbiegungsteil ein nachgiebiges Durchbiegungsblatt (15) aufweist, dessen Steifigkeit vernachlässigbar ist im Vergleich zum eigentlichen Ski und verbunden ist mit dem Ski in einer beweglichen Weise durch mindestens zwei Dämpfungsmittel (111, 112), welche jeweils ein nachgiebiges Verbindungsmittel des Durchbiegungsblattes auf dem Ski (18, 20) bilden, bestehend aus einer Zwischenlage aus nachgiebigem Material, die durch Scherkraft belastet wird bei der relativen Verschiebung des Durchbiegungsblattes relativ zum Ski, wobei die Dämpfungsmittel longitudinal beabstandet sind, um einen bestimmten Abstand "D"; wobei das erste Mittel (111) angeordnet ist in einem Bereich der maximalen Deformation durch die dritte Durchbiegungsmode und die erste Torsionsmode oder in einem Bereich der maximalen Deformation durch die zweite Durchbiegungsmode und das zweite Mittel (112) angeordnet ist in einem Bereich der maximalen Deformation durch die erste Durchbiegungsmode.
  2. Ski mit einer Dämpfungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Durchbiegungsblatt 15) ein Blatt oder ein Profilelement oder eine metallische Leiste aus Aluminium, aus Stahl oder einem Kompositmaterial ist.
  3. Ski mit einer Dämpfungsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Durchbiegungsblatt eine Breite (l) zwischen 10 und 60 mm, eine Dicke (e) zwischen 1 und 5 mm und eine Länge (L) zwischen 100 und 1200 mm aufweist.
  4. Ski mit einer Dämpfungsvorrichtung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die Zwischenlage (18) eine Schicht aus viskoelastischem Material ist, die an das Durchbiegungsblatt (15) geschweißt oder geklebt ist.
  5. Ski mit einer Dämpfungsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Schicht aus viskoelastischem Material eine Oberfläche aufweist zwischen 200 und 6000 mm2 und eine Dicke "e1" zwischen 0,5 und 4 mm.
  6. Ski mit einer Dämpfungsvorrichtung nach einem beliebigen der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das Blatt (15) durch ein drittes Dämpfungsmittel (M3), das zwischen den zwei Mitteln (M1, M2) angeordnet ist, angebunden ist.
  7. Ski mit einer Dämpfungsvorrichtung nach einem beliebigen der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das Durchbiegungsblatt (15) auf der oberen Fläche (12) des Ski angeordnet und befestigt ist.
  8. Ski mit einer Dämpfungsvorrichtung nach einem beliebigen der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Durchbiegungsblatt (15) in der Struktur des Ski angeordnet ist.
  9. Ski mit einer Dämpfungsvorrichtung nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß es sich um einen Ski des Alpintyps handelt.
EP93120492A 1993-02-05 1993-12-18 Ski mit einer Dämpfungsvorrichtung Expired - Lifetime EP0609543B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9301427A FR2701215B1 (fr) 1993-02-05 1993-02-05 Perfectionnement pour dispositif d'amortissement pour ski et ski équipé d'un tel dispositif.
FR9301427 1993-02-05

Publications (2)

Publication Number Publication Date
EP0609543A1 EP0609543A1 (de) 1994-08-10
EP0609543B1 true EP0609543B1 (de) 1998-05-13

Family

ID=9443881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93120492A Expired - Lifetime EP0609543B1 (de) 1993-02-05 1993-12-18 Ski mit einer Dämpfungsvorrichtung

Country Status (6)

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US (1) US5465994A (de)
EP (1) EP0609543B1 (de)
JP (2) JPH06238027A (de)
AT (1) ATE165988T1 (de)
DE (1) DE69318532T2 (de)
FR (1) FR2701215B1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5284357A (en) * 1991-11-01 1994-02-08 Tinkler Michael R Apparatus and method for damping deflections and vibrations in skis
FR2725378B1 (fr) * 1994-10-10 1996-11-08 Salomon Sa Ensemble pour ski comprenant un element de fixation associe a un dispositif d'amortissement
FR2729865B1 (fr) * 1995-01-27 1997-04-04 Salomon Sa Paire de skis munis de dispositifs d'amortissement asymetriques de torsion
FR2730390B1 (fr) * 1995-02-10 1997-04-04 Salomon Sa Chaussure a flexibilite controlee
FR2737417B1 (fr) * 1995-08-02 1997-08-29 Rossignol Sa Dispositif amortisseur de vibrations pour planche de glisse sur neige
FR2748399B1 (fr) * 1996-05-09 1998-06-12 Rossignol Sa Dispositif amortisseur de vibrations pour planche de glisse sur neige
US5820154A (en) * 1997-04-29 1998-10-13 Howe; John G. Ski construction
FR2763862B1 (fr) 1997-05-30 1999-08-27 Salomon Sa Dispositif interface entre une chaussure et un ski alpin
US6267402B1 (en) * 1999-03-30 2001-07-31 Nitinol Technologies, Inc. Nitinol ski structures
AT412839B (de) * 2000-06-02 2005-08-25 Atomic Austria Gmbh Gleitvorrichtung, insbesondere schi, snowboard oder dgl.
ITVE20030021A1 (it) * 2003-06-10 2004-12-11 Vittorio Quaggiotti Sci da discesa.
US7607679B2 (en) * 2004-11-23 2009-10-27 Anton F. Wilson Suspension system for a ski
WO2006088908A2 (en) * 2005-02-16 2006-08-24 Wilson Anton F Snowboards
FR2895914B1 (fr) * 2006-01-09 2008-07-04 Skis Rossignol Sas Soc Par Act Perfectionnement pour planche de glisse sur neige
FR2941627B1 (fr) * 2009-01-30 2012-12-14 Salomon Sas Ski comportant un moyen d'amortissement des vibrations
FR2947182B1 (fr) * 2009-06-26 2011-09-09 Salomon Sas Planche de glisse
DE102010047381A1 (de) * 2010-10-05 2011-08-25 Schnepf, Rolf, 76316 Ski mit verstellbarer Vorspannung im Schaufelbereich
US9950242B2 (en) 2015-06-19 2018-04-24 Anton F. Wilson Automatically adaptive ski
US10286288B1 (en) * 2015-12-29 2019-05-14 Alpine Radius Control Technologies, LLC Torsional stabilizer for skis
WO2023035062A1 (en) * 2021-09-08 2023-03-16 Socpra Sciences Et Genie S.E.C. A ski having a stabilizing section, a pair of skis and a stabilization device

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Publication number Priority date Publication date Assignee Title
US3260531A (en) * 1964-01-31 1966-07-12 Johan G F Heuvel Terrain-conforming and torsionalresponsive skis
FR2503569A1 (fr) * 1981-04-09 1982-10-15 Rossignol Sa Ski
FR2517213B1 (fr) * 1981-11-27 1986-10-17 Fischer Gmbh Ski comportant des dispositifs pour la reduction asymetrique des oscillations de flexion
AT383037B (de) * 1984-05-18 1987-05-11 Amf Sport Freizeitgeraete Ski
FR2575393A1 (fr) * 1984-12-27 1986-07-04 Rossignol Sa Ski de neige
FR2665081B1 (fr) * 1990-07-30 1992-11-06 Rossignol Sa Surf de neige a caracteristiques asymetriques.
EP0490043B1 (de) * 1990-12-14 1994-02-16 Salomon S.A. Ski mit laufflächenteil, ober Körper und Support für Bindungen
EP0490044A1 (de) * 1990-12-14 1992-06-17 Salomon S.A. Wintersportski bestehend aus einer Versteifung und einer Basis
FR2675392B1 (fr) * 1991-04-22 1995-06-23 Salomon Sa Dispositif d'amortissement pour ski.
US5269555A (en) * 1991-06-14 1993-12-14 Ruffinengo Piero G Modification of the flexibility of skis
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
DE69318532T2 (de) 1998-11-12
DE69318532D1 (de) 1998-06-18
FR2701215B1 (fr) 1995-04-14
US5465994A (en) 1995-11-14
JP3039526U (ja) 1997-07-22
ATE165988T1 (de) 1998-05-15
EP0609543A1 (de) 1994-08-10
FR2701215A1 (fr) 1994-08-12
JPH06238027A (ja) 1994-08-30

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