EP0397603B1 - Fixation de sécurité de ski avec réglage automatique de la force de déclenchement - Google Patents

Fixation de sécurité de ski avec réglage automatique de la force de déclenchement Download PDF

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Publication number
EP0397603B1
EP0397603B1 EP90810352A EP90810352A EP0397603B1 EP 0397603 B1 EP0397603 B1 EP 0397603B1 EP 90810352 A EP90810352 A EP 90810352A EP 90810352 A EP90810352 A EP 90810352A EP 0397603 B1 EP0397603 B1 EP 0397603B1
Authority
EP
European Patent Office
Prior art keywords
ski
safety binding
attachment
binding according
control 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
EP90810352A
Other languages
German (de)
English (en)
Other versions
EP0397603A1 (fr
Inventor
Stefan Freudiger
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.)
Ingenieurbuero Flugwesen and Biomechanik IFB AG
Original Assignee
Ingenieurbuero Flugwesen and Biomechanik IFB AG
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 CH1783/89A external-priority patent/CH679213A5/de
Priority claimed from CH1784/89A external-priority patent/CH679744A5/de
Application filed by Ingenieurbuero Flugwesen and Biomechanik IFB AG filed Critical Ingenieurbuero Flugwesen and Biomechanik IFB AG
Priority to AT90810352T priority Critical patent/ATE90585T1/de
Publication of EP0397603A1 publication Critical patent/EP0397603A1/fr
Application granted granted Critical
Publication of EP0397603B1 publication Critical patent/EP0397603B1/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
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/088—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with electronically controlled locking devices
    • 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
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/081—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with swivel sole-plate
    • 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
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0841—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw
    • A63C9/0842—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw the jaw pivoting on the body or base about a transverse axis
    • 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
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0845—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable the body or base or a jaw pivoting about a vertical axis, i.e. side release
    • 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
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0846—Details of the release or step-in mechanism
    • 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
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08535—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a mobile body or base or single jaw
    • A63C9/08542—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a mobile body or base or single jaw pivoting about a transversal axis
    • 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
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08535—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a mobile body or base or single jaw
    • A63C9/0855—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a mobile body or base or single jaw pivoting about a vertical axis
    • 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
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08557—Details of the release mechanism

Definitions

  • the present invention relates to a safety ski binding with automatic triggering force control, which is able to distinguish between pure torsion and lateral force torsion and to control the opening characteristics accordingly.
  • CH-A-659 776 describes a binding which has jaws which can be pivoted about axes and which are connected to a movable transmission plate. This transfer plate is mounted on a ski-fixed pin.
  • the advantage of this binding is the simultaneous release of the ski boot at the rear and front end.
  • a major disadvantage of this binding is that the resulting transverse forces are absorbed by the ski-fixed pin without their size being able to be determined, a distinction between torsion and transverse force torsion not being possible.
  • the patent DE 2324078 does not distinguish the point at which the interference force acts and therefore has the disadvantage that it cannot distinguish pure torsion from transverse force torsion.
  • the patent US-4,192,527 has the task of increasing the resistance to lateral forces and reducing the resistance to a pure moment.
  • This patent neglects the fact that pure torsion practically does not occur as an external load and also has the disadvantage that even small lateral forces at a sufficiently large distance can lead to large torsional moments, for which there is a large resistance with regard to the lateral force and with regard to the torsional moment little resistance provides what clearly represents a contradiction.
  • the patents FR-2.228.507 and CH-16404-73 go even further and pursue the task that the ski binding remains as possible with lateral forces and only opens with pairs of forces or torsional forces. These bindings have the disadvantage that they only know lateral forces and pure torsion and do not take into account the case of transverse force torsion, namely a lateral force acting at a certain distance and thus the torsion which arises in the area of the shoe.
  • a skier can only generate torques (M z ) in the xy plane (FIG. 1) (FIG. 2).
  • the skier can use the ski pole to generate lateral forces (y direction), but their magnitude can be neglected for the present consideration.
  • the loads caused by a fall are forces that act on the skier from the ski via binding, after which pure torques (torsion) can practically not occur. Rather, fall loads are mostly individual forces that attack somewhere on the ski. If these forces act sufficiently far away from the ski boot in the y direction, they also generate torsion, but always in combination with a transverse force (Fig. 3).
  • the object of the present invention is to provide a ski binding which is able to distinguish between pure torsional stress around the z-axis (active driving load) and transverse force torsion along the y-axis or around the z-axis (passive fall load).
  • Another task is that the triggering moment (-M y ) of the ski binding is additionally controlled in accordance with the simultaneous presence of a longitudinal force (P x ).
  • the solution to this problem is characterized according to the invention in that the front and rear jaws of the ski binding are connected to one another by a control element, such that the control element can determine at any time whether a specific load case represents pure torsion or transverse force torsion and can control the triggering force accordingly.
  • the invention accordingly relates to the ski binding defined in claim 1.
  • 1 shows the definition of the ski-fixed (1) orthogonal coordinate system in which the positive x-axis points forward in the ski direction, the positive y-axis to the side and the positive z-axis upwards.
  • FIG. 3a shows the typical reaction at the location of the safety ski binding when an individual force (Q) acts on the ski tip, for example laterally (y direction).
  • Fig. 3b said reaction, consisting of a torsional moment M z and a shear force Q, into the reaction forces acting on the front (P v ) and rear (P h ) jaws divided up.
  • FIG. 2 shows that in the case of the external torsional moment (FIG. 2) the reactions P v and P h are of the same size and that in the case of the external transverse force (FIG. 3b) the reactions P v and P h are of different sizes.
  • Fig. 4 shows a front safety jaw (2) with the pivot point (2a) and a cam (2b) for taking the control member (5).
  • this lateral displacement (e) is used to shift (s) a transmission member (6), so that, according to FIG. 7, the pretension in the front spring (7a) increases and decreases in the rear spring (7b) becomes.
  • the transmission element (6) is deflected with the aid of rollers (8).
  • the transmission member (6) is divided into a point (9) and guided twice (Fig. 8).
  • FIG. 9a and 9b show how a moment -M y can be generated by the skier, for example with a reserve, without the simultaneous presence of a longitudinal force (active driving load) at which the binding should not open (Avoidance of early opening). With increasing slope inclination, longitudinal force components also occur, but their size is negligible and therefore not shown here.
  • 11a and 11b show the ski boot in the ski binding without an external load.
  • the springs (15, 16) are biased and mutually balanced. If a longitudinal force now acts on the ski from behind (P x ), the ski boot (12) moves ( ⁇ ) backwards (-x), whereby the spring (16) of the rear jaw (14) loads and the spring (15) the front jaw (13) is relieved, which triggers the moment for a moment -M y earlier, ie the triggering force is reduced.
  • Fig. 12 shows the front jaw in the open state after triggering due to a moment -M y .
  • a simultaneous deflection of the front and rear jaws has the advantage that the total angle of rotation between the ski boot and the ski is increased, which can increase the time between the occurrence of the load until the trigger limit is reached, which is of great advantage with regard to the reflex times (proprioceptivity) of the skier.
  • the special embodiment defined in claim 5 also has the effect that the lower extremity of the skier is also protected in the event of a forward fall. If the skier picks up with his ski tip, the resulting longitudinal force from the front (-P x ) reduces the triggering moment (M y ) on the rear cheek and thus makes it easier for the skier to be released towards the front.
  • Holding the ski boot (12) with a spring element (15, 16) attached to the rear and front of the sole (12a) also has the advantage of only slightly influencing the elasticity of the ski in the event of strong deflection.
  • the wings (13a, 14a) of the front and rear jaws (13, 14) can also be mounted on the piston (15a, 16a) and thereby moved will.
  • the partial task can also be solved with a rear jaw of known type, if this is pushed from the front (-P x ) to the rear (-x) with a force acting on it.
  • the displaceability of the ski shoe sole (12a) can be controlled in such a way that different contact points of the ski shoe sole on the toe cheeks exist with and without longitudinal forces (FIG. 13).
  • the task can also be solved electronically.
  • Electronic bonds generally have force transducers on the front and rear jaws in the directions of interest, so that it can be assumed that the forces P v and P h , P x and -P x as well as the moments M y and -M y are corresponding Sensors are available.
  • the processor responsible for triggering the general task (Figs. 2 and 3) is programmed as follows:
  • the reduction factor K can be determined as follows: If P v > P h is K ⁇ P v / P h and if Pv ⁇ P h is K ⁇ P h / P v .

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (10)

  1. Fixation de sécurité de ski comprenant deux dispositifs de retenu (2,3) pivotants autour au moins une axe (z) perpendiculaire à la surface du ski, pour assurer le déclenchement d'une chaussure de ski ou d'une plaque portant la chaussure, d'où les deux dispositifs de retenus sont reliés par un premier organe de commande (5) pour détecter le décalage latéral, caractérisée en ce qu'un membre de transmission (6) est situé entre au moins un des dispositifs de retenu et l'organe de commande (5), de façon à commander la force de déclenchement du dispositif de retenu en fonction de la translation latérale (e) entre le centre (4) de l'organe de commande (5) et l'axe de ski, résultante des décalages latéraux (δ) des dispositifs de retenu par rapport à l'axe de ski.
  2. Fixation de sécurité de ski selon la revendication 1, caractérisée en ce que le premier organe de commande (5) est réalisé par un organe de commande mécanique, soit une tringle ou une plaque.
  3. Fixation de sécurité de ski selon la revendication 1, caractérisée en ce que le membre de transmission (6) est réalisé par un membre de transmission mécanique, soit un câble ou une tringle.
  4. Fixation de sécurité de ski selon une des revendications 1 à 3, caractérisée en ce que le membre de transmission (6) est relié avec le système de déclenchement du dispositif de retenu avant et/ou arrière, de manière à réduire la force de déclenchement de la chaussure lors de la présence d'une torsion à force transversale.
  5. Fixation de sécurité de ski selon une des revendications 1 à 4, caractérisée en ce que les dispositifs de retenu (13,14) sont pivotants autour au moins une axe supplémentaire (y) dans le plan du ski et perpendiculaire à l'axe longitudinale du ski, d'où un ressort (15,16) est situé dans le dispositif de retenu avant et arrière, destiné à retenir la chaussure de ski (2) à l'avant et à l'arrière par une élasticité identique dans l'axe longitudinale de ski (x), d'où les ressorts sont reliés par un deuxième organe de commande de manière à ce que les élasticités exercées à l'avant et l'arrière de la chaussure deviennent inégaux lors de l'apparition d'une force longitudinale (Px) dans l'axe du ski, pour commander, en fonction de la différence des élasticités, la force de déclenchement du dispositif de retenu avant et/ou arrière sous forme d'un moment de déclenchement (My) exercé sur la chaussure de ski autour d'une axe (y) dans le plan du ski et perpendiculaire à l'axe longitudinale du ski.
  6. Fixation de sécurité de ski selon une des revendications 1 à 5, caractérisée en ce que la fixation se trouve entièrement à l'intérieur de la projection sur plan horizontal de la semelle de chaussure.
  7. Fixation de sécurité de ski selon une des revendications 1 à 5, caractérisée en ce que la fixation se trouve entièrement à l'extérieur de la projection sur plan horizontal de la semelle de chaussure.
  8. Fixation de sécurité de ski selon une des revendications 5 à 7, caractérisée en ce que le deuxième organe de commande entraîne une diminution du moment de déclenchement (-My) du dispositif de retenu avant, lors de la présence d'une force longitudinale exercée sur le ski en direction du ski vers l'avant (Px).
  9. Fixation de sécurité de ski selon une des revendications 1 à 8, caractérisée en ce qu'elle possède au moins un capteur pour l'acquisition des forces latéraux ou décalages latéraux et/ou forces longitudinaux et au moins un vérin pour la commande du déclenchement, d'où des moyens électroniques de transmission sont présents pour assurer la transmission des signaux entre les capteurs et leurs vérins en leur qualité d'organes de commande et/ou membres de transmission.
  10. Fixation de sécurité de ski selon une des revendications 5, caractérisée en ce que le deuxième organe de commande se trouve sous forme d'une plaque prévue à porter la chaussure de ski, ou sous forme de la semelle de la chaussure de ski fixée dans la dite fixation de sécurité de ski.
EP90810352A 1989-05-12 1990-05-11 Fixation de sécurité de ski avec réglage automatique de la force de déclenchement Expired - Lifetime EP0397603B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90810352T ATE90585T1 (de) 1989-05-12 1990-05-11 Sicherheitsskibindung mit automatischer ausloesekraftsteuerung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH1783/89A CH679213A5 (en) 1989-05-12 1989-05-12 Safety release binding for skis
CH1784/89 1989-05-12
CH1783/89 1989-05-12
CH1784/89A CH679744A5 (en) 1989-05-12 1989-05-12 Safety release binding for skis

Publications (2)

Publication Number Publication Date
EP0397603A1 EP0397603A1 (fr) 1990-11-14
EP0397603B1 true EP0397603B1 (fr) 1993-06-16

Family

ID=25688664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810352A Expired - Lifetime EP0397603B1 (fr) 1989-05-12 1990-05-11 Fixation de sécurité de ski avec réglage automatique de la force de déclenchement

Country Status (2)

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EP (1) EP0397603B1 (fr)
DE (1) DE59001758D1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402608B (de) * 1990-12-21 1997-07-25 Varpat Patentverwertung Kupplungsvorrichtung zwischen einem schischuh kupplungsvorrichtung zwischen einem schischuh und einem schi und einem schi
EP1190744A3 (fr) * 2000-09-23 2003-04-16 INGENIEURBÜRO FLUGWESEN & BIOMECHANIK IFB AG Fixation de sécurité de ski à déclenchement différentiel
EP1190745A3 (fr) * 2000-09-23 2003-04-16 INGENIEURBÜRO FLUGWESEN & BIOMECHANIK IFB AG Fixation de sécurité de ski à déclenchement différentiel
EP1190747A3 (fr) * 2000-09-23 2003-04-16 INGENIEURBÜRO FLUGWESEN & BIOMECHANIK IFB AG Fixation de sécurité de ski à déclenchement différentiel
EP1190743A3 (fr) * 2000-09-23 2003-05-14 INGENIEURBÜRO FLUGWESEN & BIOMECHANIK IFB AG Fixation de sécurité de ski à déclenchement différentiel
EP1190748A3 (fr) * 2000-09-23 2003-04-16 INGENIEURBÜRO FLUGWESEN & BIOMECHANIK IFB AG Fixation de sécurité de ski à déclenchement différentiel
CA2597902C (fr) 2005-02-14 2011-09-20 Carl F. Ettlinger Fixation de ski comportant une butee de talon a variation dynamique vers le haut
US7523953B2 (en) 2006-08-08 2009-04-28 Vermont Safety Developments Alpine ski binding system having release logic for inhibiting anterior cruciate ligament injury

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2156334C3 (de) * 1971-11-12 1981-02-19 Geze Gmbh, 7250 Leonberg Skisicherheitsbindung
DE2504281A1 (de) * 1973-12-08 1976-08-05 Erich Eckart Sicherheits-skibindung
FR2548032B1 (fr) * 1983-07-01 1986-06-20 Salomon Sa Fixation de securite pour ski a butee et talonniere synchronisees en rotation

Also Published As

Publication number Publication date
DE59001758D1 (de) 1993-07-22
EP0397603A1 (fr) 1990-11-14

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