EP0965368B1 - Amortisseur de vibrations pour le ski - Google Patents

Amortisseur de vibrations pour le ski Download PDF

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Publication number
EP0965368B1
EP0965368B1 EP98110927A EP98110927A EP0965368B1 EP 0965368 B1 EP0965368 B1 EP 0965368B1 EP 98110927 A EP98110927 A EP 98110927A EP 98110927 A EP98110927 A EP 98110927A EP 0965368 B1 EP0965368 B1 EP 0965368B1
Authority
EP
European Patent Office
Prior art keywords
damper
ski
damper according
valve
disposed
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
EP98110927A
Other languages
German (de)
English (en)
Other versions
EP0965368A1 (fr
Inventor
Edgar Ing. Pöllmann
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.)
HTM Sport und Freizeitgerate GmbH
Original Assignee
HTM Sport und Freizeitgerate GmbH
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 HTM Sport und Freizeitgerate GmbH filed Critical HTM Sport und Freizeitgerate GmbH
Priority to DE59811757T priority Critical patent/DE59811757D1/de
Priority to EP98110927A priority patent/EP0965368B1/fr
Priority to AT98110927T priority patent/ATE272430T1/de
Publication of EP0965368A1 publication Critical patent/EP0965368A1/fr
Application granted granted Critical
Publication of EP0965368B1 publication Critical patent/EP0965368B1/fr
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 invention relates to a damper specified in the preamble of claim 1 Art.
  • a damper of a comparable type is, for example, from the publication EP-A-0 574 652 known.
  • Piston dampers are known for winter sports equipment such as alpine skis, their pistons formed displacement element under shock load a damping medium, e.g. a liquid, a gas, a gel or a mixture of such fluids, more or less compressed.
  • the damper can, for example, in a toe piece be arranged in the binding or in a so-called base plate Ski binding. It is also conceivable to place the damper between the jaws and his Base plate or in front of the binding assembly zone in connection with the ski to arrange.
  • FIGS. 13 and 14 System for changing the stiffness of a ski becomes a damper construction used in the case of a piston-side hydraulic chamber via a check valve is connected to a hydraulic chamber on the piston rod side.
  • Parallel to Check valve is a throttle valve which bypasses this in the blocking direction and is adjustable by the skier provided that depending on its setting the respective Defines damping hardness. How the throttle valve is adjusted is not revealed.
  • an electronic control valve used for displaced damping medium.
  • the electronic control valve is designed as a magnet-actuated micro miniature valve, which is usually under the relatively low temperatures when skiing slowly appeals to one has relatively poor efficiency, and requires a relatively large amount of electricity.
  • the invention has for its object a damper of the aforementioned To create kind, the damping effect is controllable while working.
  • the damping effect of the Control the damper in a targeted manner because, depending on the setting of the valve, that of the displacement element displaced damping medium with lower or higher resistance or can no longer flow into the compensation chamber.
  • the piezo element acts as a valve element of the adjustable Valve. When the voltage is applied, the piezo element moves, preferably pulsating, causing the flow of the displaced damping medium can control in an almost ideal way to the momentary damping effect adjust the current conditions. Of vibrations Shocks from the ski can be dampened in a controlled manner in this way.
  • the damping effect is controlled as a function of the current position, movement, direction of movement, speed or Acceleration of the displacement element. This is useful because of the displacement element shock movements into the damping medium resulting from vibrations introduces and therefore optimal as a reference for tapping such parameters is suitable for controlling the damping effect.
  • the energy for the movements of the piezo element provided by the power source.
  • the control electronics determine how the piezo element moves to adjust the valve. Doing so also take into account other parameters than those mentioned above.
  • the response of the piezo element to the Predetermine the setting device According to claim 5, the response of the piezo element to the Predetermine the setting device.
  • the sensor arrangement is used in each case as for Control of the damping effect provided usable parameters.
  • the upstream controls downstream of the through opening pulsating end region of the piezo element a harder or softer or very hard damping.
  • parameters for controlling the damping effect can be achieved by means of at least one sensor, e.g. also a proximity sensor for the displacement element, tap.
  • sensors are expediently used, by which one follows the movement of the displacement element while the other is stationary relative to it. It would also be conceivable about the stroke of the displacement element to distribute several stationary sensors to a kind consequently position, speed, acceleration or direction display to obtain.
  • the sensors can have their own evaluation circuit be linked to each other to create powerful and meaningful useful signals for the Control electronics to win.
  • the damper is effective between a toe holder or a heel holder and its base plate arranged in one area So, correctly in the forces or shocks resulting from ski-related ski vibrations are tapped or in the toe and / or heel holder of the Integrated ski binding, preferably in a motion-transmitting coupling with the Locking device.
  • the damper is effective between two each the ski connected base plates arranged, for example, in ski deflections move closer to or away from each other so that the Damper a quick and effective return of the ski in its essence not bent basic position.
  • the damper is effective between an abutment arranged on the ski and a binding part fastened to the ski in order to prevent driving Counteract ski deflections when they arise.
  • the damper is by means of a force-transmitting element, like a strut. In this way, large forces or initiate strong movements in the damper or the damping with large Transfer forces or lever arms to the ski.
  • a damper E shown in FIG. 1 in a partial longitudinal section points in one Housing 4 has a chamber 1 in which a displacement element K, e.g. a piston 2, is movable.
  • the chamber 1 is filled with a damping medium M, e.g. one Gas, a liquid, a gel or a mixture of such substances, i.e. a more or less compressible medium.
  • a damping medium M e.g. one Gas, a liquid, a gel or a mixture of such substances, i.e. a more or less compressible medium.
  • the piston 2 is a Force introduction element 3 connected, in the direction of movement of the displacement element K acting forces or shocks A can be attacked.
  • the housing 4 is held stationary, for example.
  • the displacement element K is against the direction of displacement is acted upon by a prestressing spring 5, the prestressing thereof is adjustable, for example by a nut 6.
  • the chamber 1 is through at least one, preferably small, through opening D with a compensation space G in flow connection.
  • a piezo element 7 forms an electrical one adjustable valve between chamber 1 and compensation chamber G.
  • the piezo element 7 has, for example, the shape of a plate which is connected to a End region 7a is fixed on a stationary storage 8 and with its free projecting other end portion 7b in the direction of displacement of the damping medium M arranged in the compensation chamber G downstream of the through opening D. is.
  • the piezo element 7 forms a valve element of the valve V, so to speak, around the To influence flow through the through opening D more or less or even block completely.
  • the piezo element 7 is connected to control electronics 9, which is an adjusting device 10 assigned and which is connected to a power source 11.
  • a sensor arrangement C is provided which has a first Sensor 12 on the displacement element K and comprises a second sensor 13, the is positioned stationary relative to the displacement element K. Both sensors 12, 13 or at least the sensor 13 responsive to the sensor 12 is or is connected to the control electronics 9.
  • the sensor arrangement C for example in the form of electrical signals, determined at least one parameter with which the response behavior of the piezo element 7 or the adjustment of the valve V or a variation of the Damping effect of the damper E is controlled.
  • This parameter can either the stroke position of the displacement element K in relation to the sensor 13, or the speed of movement or the direction of movement or the speed of movement or the acceleration or deceleration of the displacement element when working the damper E.
  • measurands can combinations can also be used as parameters for controlling the valve V.
  • the piezo element 7 closes the Through opening D. Is the displacement element K slowly towards Sensor 13 moves, then through the control electronics 9, the piezo element Apply a suitable voltage with its end portion 7b from the through hole moved away so that the through hole D is free. That from Displacement element K displaced damping medium M can with relatively little resistance be pressed into the compensation chamber G. The cushioning becomes soft or is hardly noticeable. In contrast, the displacement element K becomes fast moved, e.g. with hard shock loads, the piezo element 7 remains in the Closed position, so that a hard or strong damping is controlled. ever on request, of course, possibly influenced by the adjusting device 10 and the control electronics 9, the valve V can be controlled individually.
  • the piezo element has the advantage that it moves very quickly of the displacement element K reacts, for example only with a time delay in the range of 1ms.
  • the respective stroke position of the displacement element, the stroke direction, acceleration or deceleration or the distance between the sensors 12, 13 as the decisive parameter for Controlling the movement of the piezo element or the valve can be used.
  • the piezo element 7 generally has a pulsating movement executes, the pulse frequency and / or the pulse amplitude of the end region 7b can be changed controlled.
  • the end of the piezo element 7 could also be at the upstream end 7b Side of the passage D may be arranged. It would also be conceivable to use of the piezo element 7 to control a mechanical valve element that with the passage D cooperates in such a way that a variable can even be blocked Flow restrictor is formed. It would also be conceivable to run parallel to Through opening D to provide a further free throttle opening, or instead of just one through opening, several of the same piezo element to use monitored through openings D. Also a combination Several piezo elements 7 with several through openings are possible.
  • the damping or control of the damping of the damper E can predominantly during the pressure stroke of the displacement element K.
  • Fig. 2 is a ski binding B of toe holder 17 and heel holder on a ski S. 21, each fixed with a base plate 23 or 22.
  • the damper E is effectively switched between the two base plates 23 and 22, so that it in the event of ski deflections, the base plates 22, 23 are brought closer or removed taps and at least dampens the approaching.
  • the dashed line in Fig. 2 further indicated that the damper E integrated directly into the toe holder 17 can then be expediently coupled to the locking device of the toe holder, or that the damper E - dashed as in the toe holder 21 indicated between the toe holder and the base plate 22 acts.
  • the damper between the Ski S and the respective one Base plate 22 or 23 to be arranged.
  • the ski binding B is equipped with a base plate P, which on the Ski S is fixed and possibly carries the toe and heel holder. At least a damper E is effective between the base plate P and one Abutment 24 classified on the ski. Two pairs of dampers E are shown both ends of the base plate P, each damper E on an abutment 25 of the base plate P is supported. If the ski binding B is not a base plate P, but could only have base plates 22, 23 as in FIG. 2 the damper analogous to the illustration in Fig. 3 between the ski and the Base plates 22 and 23 may be used.
  • the ski binding B in turn has a base plate P, which with fastening elements 14 is fixed on the ski S.
  • a base plate P which with fastening elements 14 is fixed on the ski S.
  • at least one Damper E used, for example, on shock loads in the direction of Double arrow 15 responds and dampens this.
  • Fig. 5 the base plate P of the ski binding B is divided in the middle. Both parts of the Base plate P are connected to ski S at 14.
  • the damper E (at least a damper E) is arranged between the parts of the base plate P. and speaks approximately to shock loads in the direction of the double arrow 15 parallel to the longitudinal direction of the ski.
  • the damper E (at least one damper) is in the front part of the base plate P arranged, conveniently between the two attachment points the base plate P.
  • the base plate P of the ski binding B is also in two parts. Every part is fixed with fasteners 14 on the ski S. In the middle is Base plate P removed from the top 16 of the ski. Between their two parts there is at least one damper E, the shock loads in the direction of Double arrow 15 appeals.
  • the damper E or damper E are located with a distance u above the top of the ski in order to avoid ski Lever arm and to tap on the fasteners 14 or dampen.
  • Fig. 8 there is at least one damper E between a transmission part 18 and an end region of a washer P, the impact loads, for example taps in the direction of the double arrow 15 and dampens.
  • the transmission part 18 is in contact with the Ski S. If necessary, the damper E is direct supported on the base plate P on the one hand and on the ski S on the other.
  • the damper E can in the area of the support or the abutment 20 with the effective direction 15 or in the course of the strut the effective direction 15 or between the strut 19 and the base plate P or be provided in the base plate P at the point of application of the strut 19.

Landscapes

  • Vibration Prevention Devices (AREA)
  • Fluid-Damping Devices (AREA)
  • Golf Clubs (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Claims (15)

  1. Amortisseur de vibrations de ski dues au déplacement, comportant une chambre (1) prévue sur le ski (S) et/ou sur ou dans la fixation de ski (B) ou une pièce (P) de fixation de ski, contenant un fluide d'amortissement (M) et au moins un élément de refoulement (K) mobile, qui par l'intermédiaire d'au moins une vanne (V) réglable peut être reliée à un espace de compensation (G) pour du fluide d'amortissement (M) refoulé, caractérisé en ce que la vanne (V) est réglable électriquement au moyen d'au moins un élément piézoélectrique (7), et que la vanne (V) présente au moins un orifice de passage (D) menant à l'espace de compensation (G) et au moins un élément piézoélectrique (7) associé à l'orifice de passage (D) en tant qu'élément de vanne, qui est mobile par rapport à l'orifice de passage (D) par application d'une tension électrique.
  2. Amortisseur selon la revendication 1, caractérisé en ce que l'élément piézoélectrique (7) est mobile de manière pulsatoire avec une fréquence de pulsation et/ou une amplitude de pulsation variable.
  3. Amortisseur selon la revendication 1, caractérisé en ce que la vanne (V) est réglable au moins en fonction de la vitesse et/ou de l'accélération et/ou de la course et/ou du sens de course de l'élément de refoulement (K).
  4. Amortisseur selon au moins l'une des revendications 1 à 3, caractérisé en ce que l'élément piézoélectrique (7) peut recevoir une tension par l'intermédiaire d'un dispositif de commande électronique (9) et d'une source électrique (11) de préférence avec réglage individuel possible.
  5. Amortisseur selon la revendication 4, caractérisé en ce qu'un dispositif de réglage (10) est associé au dispositif de commande électronique (9) pour le comportement de réponse de l'élément piézoélectrique (7).
  6. Amortisseur selon la revendication 4, caractérisé en ce qu'au dispositif de commande électronique (9) est relié un agencement de capteurs (C) générant des signaux, à partir des signaux duquel, de préférence dans le dispositif de commande électronique (9), la position de course et/ou le sens de course et/ou la vitesse et/ou l'accélération de l'élément de refoulement (K) peut ou peuvent être déterminées.
  7. Amortisseur selon la revendication 3, caractérisé en ce que l'élément piézoélectrique (7) a la forme d'une plaquette, qui par une zone d'extrémité (7a) est fixée de manière stationnaire et par son autre zone d'extrémité (7b) est disposée, dans le sens d'écoulement du fluide d'amortissement (M) dans l'espace de compensation (G), en amont ou en aval de l'orifice de passage (D), et en fonction de la tension reçue libère ou ferme plus ou moins l'orifice de passage (D), de préférence par des mouvements pulsatoires.
  8. Amortisseur selon la revendication 6, caractérisé en ce que l'agencement de capteurs (C) comprend au moins un capteur (12, 13), un premier capteur (12) étant disposé sur l'élément de refoulement (K) ou étant couplé à celui-ci de manière à transmettre le mouvement, tandis qu'au moins un autre capteur (13) est positionné de manière stationnaire par rapport à l'élément de refoulement (K).
  9. Amortisseur selon la revendication 8, caractérisé en ce que les capteurs (12, 13) de l'agencement de capteurs (C) sont reliés l'un à l'autre par l'intermédiaire d'un circuit d'analyse, avec lequel la position de course et/ou le sens de course et/ou la vitesse et/ou l'accélération de l'élément de refoulement (K) peuvent être fournis sous forme de signaux représentatifs.
  10. Amortisseur selon au moins l'une des revendications précédentes, caractérisé en ce que l'élément de refoulement (K) est sollicité à l'opposé du sens de refoulement du fluide d'amortissement (M) par au moins un ressort de précontrainte (5), de préférence par un ressort de précontrainte (5) réglable dans sa précontrainte.
  11. Amortisseur selon au moins l'une des revendications précédentes, caractérisé en ce que l'amortisseur (E) est disposé dans une ou entre des parties, mobiles l'une par rapport à l'autre, d'une semelle (P) de la fixation de ski (S).
  12. Amortisseur selon au moins l'une des revendications 1 à 10, caractérisé en ce que l'amortisseur (E) est disposé entre une butée avant ou une talonnière (17, 21) et sa plaque de base (23, 22), ou dans la butée avant et/ou une talonnière (17, 21), de préférence en étant couplé à son dispositif de verrouillage mécanique.
  13. Amortisseur selon au moins l'une des revendications 1 à 10, caractérisé en ce que l'amortisseur (E) est disposé de manière active entre des plaques de base (23, 22) de butée avant et de talonnière.
  14. Amortisseur selon au moins l'une des revendications 1 à 10, caractérisé en ce que l'amortisseur (E) est disposé entre une contre-butée (24) sur le ski (S) et une pièce de fixation fixée au ski (S), de préférence une semelle (P).
  15. Amortisseur selon au moins l'une des revendications 1 à 10, caractérisé en ce qu'entre une pièce de fixation de ski, de préférence une semelle (P), et le ski (S) est prévu au moins un élément de transmission de mouvement ou de force, de préférence une jambe de force (19), et que l'amortisseur (E) est disposé entre le ski (S) et la pièce de fixation, ou sur l'étendue de la jambe de force (19), ou entre la jambe de force (19) et la pièce de fixation.
EP98110927A 1998-06-15 1998-06-15 Amortisseur de vibrations pour le ski Expired - Lifetime EP0965368B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59811757T DE59811757D1 (de) 1998-06-15 1998-06-15 Dämpfer für fahrbedingte Skivibrationen
EP98110927A EP0965368B1 (fr) 1998-06-15 1998-06-15 Amortisseur de vibrations pour le ski
AT98110927T ATE272430T1 (de) 1998-06-15 1998-06-15 Dämpfer für fahrbedingte skivibrationen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98110927A EP0965368B1 (fr) 1998-06-15 1998-06-15 Amortisseur de vibrations pour le ski

Publications (2)

Publication Number Publication Date
EP0965368A1 EP0965368A1 (fr) 1999-12-22
EP0965368B1 true EP0965368B1 (fr) 2004-08-04

Family

ID=8232123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98110927A Expired - Lifetime EP0965368B1 (fr) 1998-06-15 1998-06-15 Amortisseur de vibrations pour le ski

Country Status (3)

Country Link
EP (1) EP0965368B1 (fr)
AT (1) ATE272430T1 (fr)
DE (1) DE59811757D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10045326A1 (de) 2000-09-12 2002-03-21 Uwe Emig Ski, insbesondere Sprungski
DE10137378A1 (de) * 2000-12-15 2002-06-27 Marker Deutschland Gmbh Vorrichtung zur Dämpfung von Flexbewegungen eines Skis oder dergleichen
GB0129588D0 (en) * 2001-12-11 2002-01-30 Reactec Ltd Improvements in or relating to skis
DE10236152A1 (de) * 2002-08-07 2004-02-19 Marker Deutschland Gmbh Ski- und Skibindungs-Kombination

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5156413A (en) * 1989-07-26 1992-10-20 Juhasz Paul R Ski device
US5269555A (en) * 1991-06-14 1993-12-14 Ruffinengo Piero G Modification of the flexibility of skis
AT397700B (de) * 1991-12-11 1994-06-27 Hoerbiger Fluidtechnik Gmbh Piezo-ventil
FR2720007B1 (fr) * 1994-05-18 1996-07-12 Salomon Sa Ski alpin muni d'un dispositif de raidissement et/ou d'amortissement à double effet.
US5775715A (en) * 1995-08-01 1998-07-07 K-2 Corporation Piezoelectric damper for a board such as a snow ski or snowboard

Also Published As

Publication number Publication date
EP0965368A1 (fr) 1999-12-22
DE59811757D1 (de) 2004-09-09
ATE272430T1 (de) 2004-08-15

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