EP0761260A1 - Schwingungsdämpfungsvorrichtung für Snowboards - Google Patents

Schwingungsdämpfungsvorrichtung für Snowboards Download PDF

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Publication number
EP0761260A1
EP0761260A1 EP96420262A EP96420262A EP0761260A1 EP 0761260 A1 EP0761260 A1 EP 0761260A1 EP 96420262 A EP96420262 A EP 96420262A EP 96420262 A EP96420262 A EP 96420262A EP 0761260 A1 EP0761260 A1 EP 0761260A1
Authority
EP
European Patent Office
Prior art keywords
board
tongue
detached
plate
ski
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
EP96420262A
Other languages
English (en)
French (fr)
Other versions
EP0761260B1 (de
Inventor
Jean-Pierre Artus
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.)
Skis Rossignol SA
Original Assignee
Skis Rossignol SA
Rossignol SA
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 Skis Rossignol SA, Rossignol SA filed Critical Skis Rossignol SA
Publication of EP0761260A1 publication Critical patent/EP0761260A1/de
Application granted granted Critical
Publication of EP0761260B1 publication Critical patent/EP0761260B1/de
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
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/075—Vibration dampers

Definitions

  • the subject of the present invention is a vibration damping device for snowboarding, such as skiing, monoskiing or surfing.
  • the parasitic frequencies to be damped are different, so that the location, the size and the number of devices equipping the board are different and adapted to each case.
  • WO / 01189 describes a ski comprising, on its upper face, pressure elements arranged in front and behind the binding zone. These elements are for example constituted by elastic blades, each of which is fixed at one of its ends to the ski, and rests by its other end on the upper face of the ski or on an elastic stop associated with the latter.
  • Document FR-A-2 675 392 relates to a ski having the same characteristics as those described in the preceding document, with a flexion blade connected to the ski by a rigid connection, and by a flexible connection, these connections being spaced longitudinally l from each other on the bending blade.
  • Document EP-A-0 490 044 relates to a ski comprising a lower part or base, as well as an upper part or stiffener.
  • the connection between the stiffener and the base is made by flexible or partially rigid means.
  • Document FR-A-2 701 215 relates to a ski, the upper face of which is equipped with a flexion blade connected to the ski by at least two damping means spaced apart longitudinally on the ski relative to one another.
  • Document FR-A-2 709 974 in the name of the Applicant, relates to a ski equipped with a plate for mounting the binding, this plate comprising a layer of visco-elastic material surmounted by a stress plate, and the plate having, in its central part, an area not attached to the ski and deformed on the side opposite to the ski, this blade undergoing, during a bending of the ski, a buckling between its ends and tending to recall the ski in an upright position, c that is, not inflected.
  • the object of the invention is to provide a vibration damping device for snowboarding, such as skiing, monoskiing or surfing, which is of the strain plate type, and in which the strain plate offers other possibilities. damping or elastic return of the ski in its unconstrained position.
  • the device which it relates to of the “strain plate” type, of any shape and the largest dimension of which is oriented approximately longitudinally to the board, comprising a layer of visco-elastic material coated with a plate of high elastic modulus, the layer of visco-elastic material being secured on the one hand to an outer surface of the gliding board and on the other hand to the stress plate, is characterized in that the plate stress has at least one tongue-shaped zone, separated from the board over part of the width and over part of the length of the plate, this tongue being elastically flexible, and being connected to the board by its ends, so that , during the flexions of the board, it behaves like a leaf spring acting mechanically by buckling between its two ends connected to the board, while the rest of the device ag it like a visco-elastic damper with a classic stress plate.
  • the device provides the ski with a shear damping function of the layer of visco-elastic material, as well as an elastic return function by the mechanical buckling effect of the tongue not bonded to the ski. .
  • Each tab detached from the board can be an integral part of the constraint plate, or be constituted by a separate part from the latter and fixed by its ends to the end zones of the constraint plate itself fixed to the ski.
  • This attachment can be achieved by an irreversible bonding technique, such as bonding, welding or riveting, or by screwing, or by embedding the ends of the tongue in recesses formed in the end zones of the stress plate.
  • each zone comprising a tongue detached from the board, provision may or may not be made of visco-elastic material. Insofar as there is a layer of visco-elastic material, this is fixed on the upper face of the board and not fixed on the tongue. In order to promote the mechanical buckling of the tongue, this buckling can be proriented upwards by mechanical deformation of the tongue, for example using an elastic stud mounted between the lower face of the tongue and the upper face of the board, or by mechanical predeformation of the tongue.
  • the tongue can be equipped, in its central part, and on its face turned to the side opposite to the board, with a mass-spring system tuned to a certain frequency.
  • This system can be constituted by a cage containing a counterweight housed inside a visco-elastic product.
  • the disconnected tongue of the board can be straight, and oriented along the longitudinal axis of the ski or obliquely.
  • This tab can occupy a central position relative to the plate, or be arranged laterally thereto.
  • the two end zones may be common for the tab detached from the plate and for the plate itself, or else the tab detached from the board may have an end zone integral with the board, but distinct from the rest of the plate .
  • the device comprises several tabs separated from the board, arranged obliquely to the longitudinal axis thereof, and the ends of which are integral with two longitudinal tongues integral with the board along their whole area.
  • a layer of visco-elastic material on the other face of which is fixed a stress plate is fixed on the face of the tongue detached from the board, turned towards the side opposite the ski.
  • FIG. 1 represents a ski 2 comprising, in a manner known per se, a tip 3, a heel 4 and a central part 5 or skid zone in which is mounted a binding for a ski boot consisting of a stop 6 and a heel piece 7.
  • Figure 3 and other figures very schematically represent this sectional ski, it being specified that the structure of the ski is given by way of illustration but is not the subject of the invention.
  • the ski comprises a sliding sole 7 bordered by two longitudinal metal edges 8, on which rest the lower edges of a shell 9 forming the side walls 10 as well as the upper wall 12 of the ski.
  • the interior of this ski comprises a core 13, the possible reinforcing elements, both at the level of the sole 7 and at the level of the shell 9, not having been shown.
  • the invention could apply just as well to skis of traditional structure, that is to say comprising longitudinal edges resting on the edges 8, or on reinforcing elements associated with the edges, these edges serving them -same supports with an upper wall produced independently.
  • a damping device 14 of the strain plate type is arranged between the stop 6 of the fixing and the spatula 3.
  • a damping device 14 is arranged between the stop 6 of the fixing and the spatula 3.
  • only one damping device is shown in the drawing, it is possible, depending on the type of behavior sought for skiing and depending on the frequencies of the vibrations to be absorbed, depending on whether it is a ski more specifically intended for the practice of giant slalom or for the practice of special slalom, to position the device differently 14 or to mount several devices 14.
  • a damping device with a stress plate comprises a layer 15 of visco-elastic material fixed to the upper wall 12 of the ski, for example by gluing. On this layer of visco-elastic material is fixed, also by gluing, a constraint plate 16 with high elasticity modulus. The damping of the vibrations is obtained by a shearing phenomenon of the layer 15 of material visco-elastic between the upper wall 12 of the ski and the stress plate 16.
  • the damping device comprises a layer 15 of visco-elastic material as well as a stress plate 16 in the general shape of a hollow ellipse.
  • the central part of the device has two recesses 17 delimiting a straight longitudinal tongue 18, which is separated from the upper face of the ski, it being specified that, as shown in FIGS. 2 and 3, there is no layer of visco-elastic material nor at the level of the recesses 17, nor under the tongue 18.
  • the zones of the stress plate made integral with the ski by gluing the base of the layer of visco-elastic material are materialized by dotted lines, while the tongue 18 which is detached from the ski does not have such dotted lines.
  • the tongue 18 being elastically flexible, and being connected by its ends to the board, since its ends rest and are fixed on the layer of visco-elastic material 15, it behaves like a leaf spring, acting mechanically by buckling between its two ends connected to the board. As regards the rest of the device, it acts as a visco-elastic damper with a stress plate, by shearing the layer 15 of visco-elastic material between the upper wall 12 of the ski and the stress plate 16.
  • FIG. 4 represents an alternative embodiment of the device of FIGS. 1 to 3, in which the same elements are designated by the same references as above.
  • the layer 15a of visco-elastic material extends over the entire surface of the device, including at the level of the recesses 17, and under the tongue 18.
  • the tongue 18 is not bonded to the layer of visco-elastic material 15a.
  • Figures 5 to 7 show another embodiment of this damping device, of a structure close to the device of Figures 1 to 3.
  • the device designated by the general reference 19 has a general form of parallelogram, of which the two longitudinal branches are oriented in the direction of the length of the board.
  • the two transverse branches are connected by a longitudinal tongue 20 oriented in the direction of the length of the board.
  • This tongue 20 is detached from the ski in its central part, and is pre-deformed upwards, as shown in FIGS. 6 and 7, due to the presence on the upper face of the ski of a stud 22 made of an elastic material, this stud forming a support and ensuring the predeformation of the tongue 20 on the side opposite the ski.
  • This arrangement orients the direction of deformation of the tongue and promotes the phenomenon of buckling during bending of the ski.
  • FIGS 8 and 9 show another embodiment of this damping device in which the same elements are designated by the same references as above.
  • This device designated by the general reference 23
  • This device has a generally rectangular shape, the central part of which is hollowed out.
  • In this central part are arranged, between the two longitudinal branches, four tabs 24, 25, 26, 27 inclined at 45 ° relative to the longitudinal axis of the board.
  • Two of the tabs 24, 26 are inclined in opposite directions to the other two.
  • each tongue has a blade-spring effect by buckling on the one hand on simple flexions of the board, as in the previous cases, and on the other hand during deformations of the board by twisting or twisting.
  • the 45 ° angle given as an example, could be different, and the tabs could be pre-bent to orient the buckling.
  • FIG. 10 represents another embodiment of this device, in which the same elements are designated by the same references as above.
  • the constraint plate and the layer of visco-elastic material have a general shape of diabolo.
  • the tongue 29 separated from the ski is pre-deformed on the opposite side of the ski, thanks to the presence of folds 30, and carries, near its zone furthest from the ski, a cage 32 containing a counterweight 33 embedded inside a mattress of visco-elastic material.
  • This assembly forming a mass of inertia also promotes the damping of certain vibrations.
  • FIG. 12 represents a damping device 34 of generally rectangular shape, in which are formed, in the layer of visco-elastic material and in the stress plate, two recesses rectangular 35 delimiting three parallel branches connected by two end zones which are perpendicular thereto. Among these three branches, one of them arranged laterally forms a tongue 36 whose central part is not integral with the ski.
  • FIG. 13 shows another device, similar to the device in FIG. 2, designated by the general reference 37, in which the tongue 38 separated from the ski is arranged obliquely.
  • FIG. 14 represents a damping device 39 similar to that of FIGS. 2 and 3 and in which the same elements are designated by the same references as in this figure.
  • a layer 40 of visco-elastic material on the upper face of which is fixed a tongue 42 with high elastic modulus forming stress plate. It is thus possible to combine, on the same support, qualities of damping by buckling and by shearing.
  • FIG. 16 represents a damper device 43 which has, in top view, a shape of parallelogram.
  • the constraint plate has, over part of its length, a longitudinal slot 44.
  • the large surface located on one side of the slot 44 as well as the areas disposed in front and behind this slot, over the entire width of the plate, are integral with the ski, while the zone situated on the other side of the plate, in the upper part of the drawing, forms a tongue 45 which is not integral with the ski.
  • FIG. 17 shows an alternative embodiment of the device in FIG. 16, this new device 46 in the general shape of an ellipse, having two slots 47 formed in the stress plate, these slots 47 being central and longitudinal, extending over a part of the length of the constraint plate, and delimiting between them a tongue 48 separated from the upper face of the ski.
  • Figures 18 and 19 show another embodiment of this damping device designated by the general reference 49.
  • the stress plate and the layer of visco-elastic material associated therewith have the form general of an open O. From the central zone of the O extends a tongue 50 separated from the ski in its central part, and the free end of which is fixed at 52 to the ski, independently of the stress plate, by through a layer of visco-elastic material.
  • the length of the tongue 50 corresponding to its central part separated from the board, can be much longer than the actual plywood, which has the consequence of increasing the buckling and therefore the spring effect.
  • the damping device 53 comprises a layer of visco-elastic material and a generally rectangular stress plate having a central recess 54 also rectangular.
  • the stress plate 55 On the upper face of the stress plate 55 are fixed, for example by welding or by bonding depending on the nature of the materials used, the ends of a tongue 56 made of a flexible material.
  • the damping device 57 comprises a stress plate and a layer of visco-elastic material, designated respectively by the references 58 and 59, having a general shape of ellipse, with a recess central 60.
  • recessed portions 62 intended to allow the embedding of the ends of an elastic tongue 63 which has a predeformation on the side opposite to the ski.
  • the invention is not limited to the sole embodiments of this device described above by way of examples, on the contrary it embraces all variants.
  • the same device could comprise several tabs separated from the ski, or even that this device could be applied to other gliding boards than a ski, for example a surf or a monoski, or even as following the geometry of the gliding board the damping device could be fixed not on the upper face substantially parallel to the sole, but on an inclined face, or on the edges of the board, without leaving the frame of the invention.
EP96420262A 1995-08-02 1996-08-01 Schwingungsdämpfungsvorrichtung für Snowboards Expired - Lifetime EP0761260B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9509627 1995-08-02
FR9509627A FR2737417B1 (fr) 1995-08-02 1995-08-02 Dispositif amortisseur de vibrations pour planche de glisse sur neige

Publications (2)

Publication Number Publication Date
EP0761260A1 true EP0761260A1 (de) 1997-03-12
EP0761260B1 EP0761260B1 (de) 2003-02-26

Family

ID=9481796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96420262A Expired - Lifetime EP0761260B1 (de) 1995-08-02 1996-08-01 Schwingungsdämpfungsvorrichtung für Snowboards

Country Status (5)

Country Link
US (1) US5915716A (de)
EP (1) EP0761260B1 (de)
AT (1) ATE233118T1 (de)
DE (1) DE69626348T2 (de)
FR (1) FR2737417B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6267402B1 (en) * 1999-03-30 2001-07-31 Nitinol Technologies, Inc. Nitinol ski structures
FR2810557B1 (fr) 2000-06-27 2002-10-04 Rossignol Sa Dispositif destine a etre rapporte sur la face superieure d'une planche de glisse
FR2811903B1 (fr) * 2000-07-21 2003-02-07 Salomon Sa Planche munie d'un dispositif d'amortissement des vibrations
US7607679B2 (en) * 2004-11-23 2009-10-27 Anton F. Wilson Suspension system for a ski
US7708302B2 (en) * 2005-02-16 2010-05-04 Anton F. Wilson Snowboards
US7467806B1 (en) * 2007-07-19 2008-12-23 D2 Investments, Llc Lightweight ski stability system
KR101665348B1 (ko) * 2014-10-30 2016-10-12 주식회사 경동스포츠 텐션조절기능을 갖는 스노우보드
US9950242B2 (en) 2015-06-19 2018-04-24 Anton F. Wilson Automatically adaptive ski
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643431A1 (fr) * 1989-02-20 1990-08-24 Rossignol Sa Dispositif amortisseur comprenant des materiaux visco-elastiques
WO1993008883A1 (en) * 1991-11-01 1993-05-13 Tinkler Michael R Apparatus and method for damping deflections and vibrations in skis
EP0639391A1 (de) * 1993-08-20 1995-02-22 Salomon S.A. Ski mit elastischen längenveränderbaren Dämpfungseinrichtungen vor und hinter der Bindung
FR2713499A1 (fr) * 1993-12-07 1995-06-16 Rossignol Sa Plaque pour le montage sur un ski alpin d'une fixation pour chaussure.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE3840553A1 (de) * 1988-12-01 1990-06-07 Blizzard Gmbh Ski mit einem daempfungselement
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.
FR2678517B1 (fr) * 1991-07-04 1993-10-15 Salomon Sa Perfectionnement pour dispositif d'amortissement pour ski.
FR2694205B1 (fr) * 1992-07-31 1994-09-23 Salomon Sa Perfectionnement pour dispositif d'amortissement pour ski.
FR2701215B1 (fr) * 1993-02-05 1995-04-14 Salomon Sa Perfectionnement pour dispositif d'amortissement pour ski et ski équipé d'un tel dispositif.
FR2704440B1 (fr) * 1993-04-30 1995-07-28 Salomon Sa Planche de glisse, notamment surf de neige.
FR2709974B1 (fr) * 1993-09-17 1995-10-20 Rossignol Sa Dispositif de montage d'une chaussure sur un ski alpin.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643431A1 (fr) * 1989-02-20 1990-08-24 Rossignol Sa Dispositif amortisseur comprenant des materiaux visco-elastiques
WO1993008883A1 (en) * 1991-11-01 1993-05-13 Tinkler Michael R Apparatus and method for damping deflections and vibrations in skis
EP0639391A1 (de) * 1993-08-20 1995-02-22 Salomon S.A. Ski mit elastischen längenveränderbaren Dämpfungseinrichtungen vor und hinter der Bindung
FR2713499A1 (fr) * 1993-12-07 1995-06-16 Rossignol Sa Plaque pour le montage sur un ski alpin d'une fixation pour chaussure.

Also Published As

Publication number Publication date
DE69626348D1 (de) 2003-04-03
FR2737417B1 (fr) 1997-08-29
US5915716A (en) 1999-06-29
DE69626348T2 (de) 2003-09-18
FR2737417A1 (fr) 1997-02-07
EP0761260B1 (de) 2003-02-26
ATE233118T1 (de) 2003-03-15

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