EP0257244B1 - Safety ski binding, especially a toe binding - Google Patents

Safety ski binding, especially a toe binding Download PDF

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Publication number
EP0257244B1
EP0257244B1 EP87109486A EP87109486A EP0257244B1 EP 0257244 B1 EP0257244 B1 EP 0257244B1 EP 87109486 A EP87109486 A EP 87109486A EP 87109486 A EP87109486 A EP 87109486A EP 0257244 B1 EP0257244 B1 EP 0257244B1
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EP
European Patent Office
Prior art keywords
ski
spring
spring housing
axle pin
release
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
EP87109486A
Other languages
German (de)
French (fr)
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EP0257244A2 (en
EP0257244A3 (en
Inventor
Karl Stritzl
Henri Freisinger
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.)
TMC Corp
Original Assignee
HTM Sport und Freizeitgerate GmbH
TMC Corp
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Publication of EP0257244A2 publication Critical patent/EP0257244A2/en
Publication of EP0257244A3 publication Critical patent/EP0257244A3/en
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Publication of EP0257244B1 publication Critical patent/EP0257244B1/en
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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
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08507—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 plurality of mobile jaws
    • A63C9/08521—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 plurality of mobile jaws pivoting about a vertical axis, e.g. 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
    • A63C9/085—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
    • A63C9/08564—Details of the release mechanism using cam or slide surface
    • 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
    • A63C9/005—Ski bindings with means for adjusting the position of a shoe holder or of the complete binding relative to the ski

Definitions

  • the invention relates to a safety ski binding according to the preamble of claim 1.
  • ski binding is described in DE-A1-34 03 472.
  • This ski binding has a housing that is screwed onto the top of the ski and in which a four-bar linkage is housed.
  • the latter consists of two handlebars and a coupling. Swivel jaws are rotatably mounted on the hinge axes of the coupling. How the pivot jaws are to be locked and how the quadrilateral joint is to be kept in its normal position is not described in the publication, especially since it is the aim of the invention according to DE-A1-34 03 472 to increase the friction in the front jaw when moving forward - or to prevent reverse turning.
  • a jaw body which can be used either as a toe or as a heel
  • a sole holder is also provided which laterally encompasses the ski boot and which is held in the central position against lateral as well as against vertical release via a release mechanism acted upon by a single spring.
  • the jaw body can be pivoted on the one hand about a vertical axis fixed to the base plate and on the other hand it can be pivoted upward about a transverse axis.
  • a step plate is missing, which would be movably mounted on the base plate transversely to the longitudinal direction of the ski.
  • the present invention has for its object to eliminate the disadvantage mentioned at the outset and to create a ski binding in which the sole of the ski boot is held in place not only by lateral pivoting jaws, but also by a sole hold-down device, the latter being reversed when the skier falls over Lift off the top of the ski a little and make it easier to release the ski boot from the side.
  • the release spring has two functions, namely to hold the tread plate and the spring housing in the middle position and at the same time to press the sole retainer against the sole of the ski boot via the locking lever articulated on the rocker arm. If the sole holder is loaded by the skier's back, there is no fall yet there is a certain relief of the release spring in the spring housing. However, if the skier falls backwards, the sole hold-down is raised.
  • the feature of claim 3 results in a particularly space-saving and simple structure.
  • FIG. 1 is a vertical longitudinal central section through the toe piece in the driving position and FIG. 2 is a reduced section along the line II-II in FIG. 1.
  • FIG. 3 is a reduced partial section along the line III-III in FIG. 1 reproduced.
  • Fig. 4 is a section along the line IV - IV in Fig. 1.
  • Fig. 5 shows a plan view of a detail of the toe, finally in Fig. 6, which is about that 3 corresponds to the front jaws reproduced after a fall.
  • the spring that connects the two support members to one another was not drawn in for the sake of clarity.
  • the safety ski binding according to the invention has a base plate 1 to be fastened to the ski, which carries in its front region a bolt 2 which runs perpendicular to the upper side of the ski and on which a roller 2a is mounted.
  • a base plate 1 to be fastened to the ski, which carries in its front region a bolt 2 which runs perpendicular to the upper side of the ski and on which a roller 2a is mounted.
  • an intermediate sleeve is designated.
  • a profile iron 3 which serves to guide a tread plate 4 parallel to the top of the ski.
  • the profile iron 3 is fastened with screws 3a together with the base plate 1 to the ski.
  • the tread plate 4 is connected to the base plate 1 by means of links 5 and 6.
  • links 5 and 6 instead of the handlebars 5 and 6, it can also be guided transversely with respect to the ski by a second profile iron.
  • a shaft 7 is rotatable in the tread plate 4, but is secured and secured against axial displacement.
  • a control disc 9 is placed on the shaft 7, which carries a control lever 9a.
  • the control disc 9 can be rotated about the shaft 7 and runs in the region of the shaft 7 parallel to the control plate 8, the control lever 9a being free End is angled by 90 °.
  • the control lever 9a engages in an arcuate slot 8a in the control plate 8 with play (see Fig. 2).
  • the control disk 9 carries, as can be seen in particular from FIG.
  • the spring housing 13 there is a bore 13a extending in the longitudinal direction of the ski, in which a release spring 14 is accommodated, the pretensioning of which can be set in a manner known per se and checked by means of a mark (not shown) and a scale fixed to the housing.
  • the end of the release spring 14 remote from the ski tip is supported on a piston 15.
  • an axis 16 Arranged below the bore 13a in the spring housing 13 is an axis 16 which extends in the transverse direction and on which a U-shaped hold-down device 17 is mounted, as seen in the longitudinal direction of the ski.
  • the legs of the hold-down device 17 are guided in slots in the spring housing 13.
  • transverse axis 18 On which a U-shaped rocker 19 is also mounted, as seen in the longitudinal direction of the ski. Between the legs of the rocker 19 there is another transverse axis 20 for a locking lever 21. This locking lever 21 is pressed by the piston 15 loaded by the release spring 14 against a nose 17a of the hold-down device 17.
  • the hold-down device 17 there is a screw 22 running perpendicular to the upper side of the ski, which screw is rotatably mounted in the hold-down device 17 with play, but is secured against axial displacement.
  • a sole hold-down device 23 is screwed onto this screw 22.
  • the screw 22 passes through a hole in the tread plate 4, which has a downwardly open recess at this point, and carries at its lower end a thickening 22a, through which the displacement of the screw 22 and thus that of the sole retainer 23 is limited.
  • a cam disk 24 is fastened above the control disk 9, on which the web 19a of the U-shaped rocker 19 is supported in the travel position of the front jaw.
  • the tread plate 4 and with it the spring housing 13 are moved transversely to the vertical longitudinal center plane of the ski.
  • the control lever 9a comes to rest on one end of the elongated hole 8a in the control plate 8 and is carried by it.
  • the piston 15 is pushed back somewhat in the bore 13a of the spring housing 13 by the cam disk 24 via the web 19a of the rocker 19.
  • the support member 10 of the one pivot jaw 11 is pivoted by a stop 9b of the control disk 9, so that this pivot jaw 11 is released.
  • the invention is not tied to the embodiment shown in the drawing and described above.
  • an embodiment in which the path covered by the tread plate in the event of a rotary fall is limited by stops is also to be covered by the protection of the invention.
  • the two support members 10 can each be acted upon by a spring.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Basic Packing Technique (AREA)
  • Ropes Or Cables (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Artificial Filaments (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Materials For Medical Uses (AREA)

Abstract

The safety ski binding comprises a base plate on which a spring housing for a release spring is mounted for displacement transversely on the longitudinal direction of the ski. Mounted in the spring housing are two hinged jaws laterally engaging a ski boot and rotatably supported about vertical axes. For improving the retention of the ski boot and for facilitating the lateral release in the case of a rearward torsion fall, a U-shaped pivot member is mounted on a transverse axial member in the spring housing and supports a further transverse axial member supporting a catch lever subjected to the action of the release spring to be engaged with a nose of a clamp retainer rotatably mounted about another transverse axial member, which suppports a sole clamp.

Description

Die Erfindung bezieht sich auf eine Sicherheitsskibindung gemäß dem Oberbegriff des Anspruches 1.The invention relates to a safety ski binding according to the preamble of claim 1.

Eine derartige Skibindung ist in der nachveröffentlichten AT-B- 383 044 bereits beschrieben. Diese Skibindung hatte den Nachteil, daß die Schuhsohle nur seitlich von zwei Schwenkbacken festgehalten wurde, die sich nur bei einem Drehsturz des Skiläufers öffneten, nicht aber dann, wenn der Skiläufer einen Rückwärtsdrehsturz erlitten hat.Such a ski binding has already been described in the subsequently published AT-B-383 044. This ski binding had the disadvantage that the sole of the shoe was only held on the side by two swivel jaws, which only opened when the skier turned, but not when the skier suffered a backward fall.

Eine andere Skibindung ist in der DE-A1-34 03 472 beschrieben. Diese Skibindung besitzt ein Gehäuse, das an der Skioberseite festgeschraubt ist und in dem ein Gelenkviereck untergebracht ist. Letzteres besteht aus zwei Lenkern und aus einer Koppel. Auf den Gelenkachsen der Koppel sind Schwenkbacken drehbar gelagert. Wie die Schwenkbacken verriegelt werden sollen und wie das Gelenkviereck in seiner Normallage gehalten werden soll, ist in der Druckschrift nicht beschrieben, zumal es das Ziel der Erfindung gemäß der DE-A1-34 03 472 ist, im Vorderbacken eine Erhöhung der Reibung bei einem Vorwärts- oder Rückwärtsdrehsturz zu verhindern.Another ski binding is described in DE-A1-34 03 472. This ski binding has a housing that is screwed onto the top of the ski and in which a four-bar linkage is housed. The latter consists of two handlebars and a coupling. Swivel jaws are rotatably mounted on the hinge axes of the coupling. How the pivot jaws are to be locked and how the quadrilateral joint is to be kept in its normal position is not described in the publication, especially since it is the aim of the invention according to DE-A1-34 03 472 to increase the friction in the front jaw when moving forward - or to prevent reverse turning.

An sich ist der Gedanke, bei einer Sicherheitsskibindung einen Backenkörper zu verwenden, der wahlweise als Vorderbacken oder als Fersenbacken verwendet werden kann, bereits bekannt, wie die AT-B-294.645 zeigt. Bei diesem Backenkörper ist ein den Skischuh auch seitlich umfassender Sohlenhalter vorgesehen, welcher über einen von einer einzigen Feder Beaufschlagten Auslösemechanismus sowohl gegen seitliches als auch gegen vertikales Auslösen in der Mittellage gehalten ist. Für eine Freigabe des Schuhs ist der Backenkörper einerseits um eine grundplattenfeste Hochachse verschwenkbar und andererseits um eine Querachse hochschwenkbar gelagert. Es fehlt allerdings eine Trittplatte, die auf der Grundplatte quer zur Skilängsrichtung bewegbar gelagert wäre.In itself, the thought is with a safety ski binding to use a jaw body, which can be used either as a toe or as a heel, is already known, as the AT-B-294.645 shows. In the case of this shoe body, a sole holder is also provided which laterally encompasses the ski boot and which is held in the central position against lateral as well as against vertical release via a release mechanism acted upon by a single spring. To release the shoe, the jaw body can be pivoted on the one hand about a vertical axis fixed to the base plate and on the other hand it can be pivoted upward about a transverse axis. However, a step plate is missing, which would be movably mounted on the base plate transversely to the longitudinal direction of the ski.

Die vorliegende Erfindung stellt sich die Aufgabe, den eingangs angeführten Nachteil zu beseitigen und eine Skibindung zu schaffen, bei der die Sohle des Skischuhs nicht nur durch seitliche Schwenkbacken, sondern auch durch einen Sohlenniederhalter festgehalten ist, wobei sich letzterer bei einem Drehsturz des Skiläufers nach rückwärts von der Skioberseite etwas abheben und damit eine seitliche Freigabe des Skischuhs erleichtern soll.The present invention has for its object to eliminate the disadvantage mentioned at the outset and to create a ski binding in which the sole of the ski boot is held in place not only by lateral pivoting jaws, but also by a sole hold-down device, the latter being reversed when the skier falls over Lift off the top of the ski a little and make it easier to release the ski boot from the side.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teiles des Anspruches 1 gelöst. Bei dieser Konstruktion einer Bindung hat die Auslösefeder also zwei Funktionen zu erfüllen, nämlich die Trittplatte und das Federgehäuse in der Mittellage zu halten und gleichzeitig den Sohlenniederhalter über den an der Schwinge angelenkten Rasthebel an die Sohle des Skischuhs anzudrücken. Bei einer Belastung des Sohlennierderhalters durch eine Rücklage des Skiläufers, wobei noch kein Sturz erfolgt ist, findet eine gewisse Entlastung der Auslösefeder im Federgehäuse statt. Bei einem Rückwärtsdrehsturz des Skiläufers hingegen wird der Sohlenniederhalter angehoben.This object is achieved by the features of the characterizing part of claim 1. In this construction of a binding, the release spring has two functions, namely to hold the tread plate and the spring housing in the middle position and at the same time to press the sole retainer against the sole of the ski boot via the locking lever articulated on the rocker arm. If the sole holder is loaded by the skier's back, there is no fall yet there is a certain relief of the release spring in the spring housing. However, if the skier falls backwards, the sole hold-down is raised.

Um das Federgehäuse und die Trittplatte durch den von der Auslösefeder belasteten Kolben in der Mittelstellung zu halten, bieten sich verschiedene Möglichkeiten an, von denen eine im Anspruch 2 angegeben ist. Durch den eingeleiteten Rückwärtsdrehsturz des Skiläufers wird nämlich vom Rasthebel auf dessen Querachse eine in Richtung zum Skischuh hin wirkende Kraft hervorgerufen, wodurch die Schwinge einen Druck auf die Nockenscheibe ausübt. Dadurch verbleibt im Steuersystem des Vorderbackens eine Restkraft, die die Zentrierung des Skischuhs weiterhin gewährleistet.In order to keep the spring housing and the tread plate in the middle position by the piston loaded by the release spring, there are various possibilities, one of which is specified in claim 2. Due to the initiated backward turn of the skier, a force acting in the direction of the ski boot is caused by the locking lever on its transverse axis, whereby the rocker exerts pressure on the cam disk. This leaves a residual force in the control system of the toe piece, which continues to ensure that the ski boot is centered.

Das Merkmal des Anspruches 3 ergibt einen besonders raumsparenden und einfachen Aufbau.The feature of claim 3 results in a particularly space-saving and simple structure.

Schließlich wird durch die Merkmale des Anspruches 4 der Schwenkwinkel des Niederhalters klein gehalten.Finally, the pivot angle of the hold-down device is kept small by the features of claim 4.

In der Zeichnung ist eine beispielsweise Ausführungsform einer erfindungsgemäßen Sicherheitsskibindung, insbesondere eines Vorderbackens, rein schematisch dargestellt. Fig. 1 ist ein vertikaler Längsmittelschnitt durch den in der Fahrtstellung befindlichen Vorderbacken und Fig. 2 ein verkleinerter Schnitt nach der Linie II - II in Fig. 1. In Fig.3 ist ein verkleinerter Teilschnitt nach der Linie III - III in Fig. 1 wiedergegeben. Fig. 4 ist ein Schnitt nach der Linie IV - IV in Fig. 1. Fig. 5 zeigt eine Draufsicht auf ein Detail des Vorderbakkens, Schließlich ist in Fig. 6, welche etwa dem Schnitt nach Fig. 3 entspricht, der Vorderbacken nach einem Drehsturz wiedergegeben. Dabei wurde die Feder, welche die beiden Stützglieder miteinander verbindet, der klareren Darstellung wegen nicht eingezeichnet.In the drawing, an example embodiment of a safety ski binding according to the invention, in particular a toe piece, is shown purely schematically. 1 is a vertical longitudinal central section through the toe piece in the driving position and FIG. 2 is a reduced section along the line II-II in FIG. 1. FIG. 3 is a reduced partial section along the line III-III in FIG. 1 reproduced. Fig. 4 is a section along the line IV - IV in Fig. 1. Fig. 5 shows a plan view of a detail of the toe, finally in Fig. 6, which is about that 3 corresponds to the front jaws reproduced after a fall. The spring that connects the two support members to one another was not drawn in for the sake of clarity.

Die erfindungsgemäße Sicherheitsskibindung besitzt eine am Ski zu befestigende Grundplatte 1, welche in ihrem vorderen Bereich einen senkrecht zur Skioberseite verlaufenden Bolzen 2 trägt, auf dem eine Rolle 2a gelagert ist. Mit 2b ist eine Zwischenhülse bezeichnet. Unterhalb des Zwischenhülse 2b befindet sich ein Profileisen 3, welches dazu dient, eine Trittplatte 4 parallel zur Skioberseite zu führen. Das Profileisen 3 ist mit Schrauben 3a zusammen mit der Grundplatte 1 am Ski befestigt. Die Trittplatte 4 ist mittels Lenkern 5 und 6 mit der Grundplatte 1 verbunden. Sie kann aber auch anstelle der Lenker 5 und 6 durch ein zweites Profileisen gegenüber dem Ski in Querrichtung geführt werden.The safety ski binding according to the invention has a base plate 1 to be fastened to the ski, which carries in its front region a bolt 2 which runs perpendicular to the upper side of the ski and on which a roller 2a is mounted. With 2b an intermediate sleeve is designated. Below the intermediate sleeve 2b is a profile iron 3, which serves to guide a tread plate 4 parallel to the top of the ski. The profile iron 3 is fastened with screws 3a together with the base plate 1 to the ski. The tread plate 4 is connected to the base plate 1 by means of links 5 and 6. However, instead of the handlebars 5 and 6, it can also be guided transversely with respect to the ski by a second profile iron.

In der Trittplatte 4 ist eine Welle 7 drehbar, aber gegen axiales Verschieben gesichert,gelagert. Auf dem vorderen Ende der Trittplatte 4 liegt eine Steuerplatte 8 auf, welche an der Welle 7 befestigt ist und welche an ihrem vorderen Ende eine Gabel aufweist, die sich an der Rolle 2a abstützt. Im Abstand von der Steuerplatte 8 ist auf die Welle 7 eine Steuerscheibe 9 aufgesetzt, welche einen Steuerhebel 9a trägt.Die Steuerscheibe 9 ist um die Welle 7 verdrehbar und verläuft im Bereich der Welle 7 parallel zur Steuerplatte 8, wobei der Steuerhebel 9a an seinem freien Ende um 90° abgewinkelt ist. Der Steuerhebel 9a greift in ein bogenförmiges Langloch 8a in der Steuerplatte 8 mit Spiel ein (s.Fig. 2). Die Steuerscheibe 9 trägt, wie insbesondere aus Fig. 3 erkennbar ist, in ihrem der Welle 7 benachbarten Bereich zwei Anschläge 9b, an denen sich von einer Feder 10a belastete Stützglieder 10 von zwei Schwenkbacken 11 abstützen, welch' letztere auf Achsen 12 in einem Federgehäuse 13 schwenkbar gelagert sind, das im vorderen Bereich der Trittplatte 4 an dieser befestigt ist. Die beiden Stützglieder 10 sind auf je einer Achse 11a der Schwenkbacken 11 gelagert.A shaft 7 is rotatable in the tread plate 4, but is secured and secured against axial displacement. On the front end of the tread plate 4 there is a control plate 8 which is fastened to the shaft 7 and which has a fork at its front end which is supported on the roller 2a. At a distance from the control plate 8, a control disc 9 is placed on the shaft 7, which carries a control lever 9a. The control disc 9 can be rotated about the shaft 7 and runs in the region of the shaft 7 parallel to the control plate 8, the control lever 9a being free End is angled by 90 °. The control lever 9a engages in an arcuate slot 8a in the control plate 8 with play (see Fig. 2). The control disk 9 carries, as can be seen in particular from FIG. 3, in its area adjacent to the shaft 7 two stops 9b, on which support members 10, which are loaded by a spring 10a, are supported by two pivoting jaws 11, the latter being pivotably mounted on axles 12 in a spring housing 13 which is fastened to the footplate 4 in the front region thereof. The two support members 10 are each mounted on an axis 11a of the swivel jaws 11.

Im Federgehäuse 13 ist eine in Skilängsrichtung verlaufende Bohrung 13a ausgespart, in der eine Auslösefeder 14 untergebracht ist, deren Vorspannung in an sich bekannter Weise eingestellt und mittels einer nicht dargestellten Marke sowie einer gehäusefesten Skala übersprüft werden kann. Das von der Skispitze entfernte Ende der Auslösefeder 14 stützt sich an einem Kolben 15 ab. Unterhalb der Bohrung 13a ist im Federgehäuse 13 eine in Querrichtung verlaufende Achse 16 angeordnet, auf der ein - in Skilängsrichtung gesehen - U-förmiger Niederhalter 17 gelagert ist. Die Schenkel des Niederhalters 17 sind in Schlitzen des Federgehäuses 13 geführt. Oberhalb der Bohrung 13a befindet sich eine Querachse 18, auf der eine - in Skilängsrichtung gesehen - gleichfalls U-förmige Schwinge 19 gelagert ist. Zwischen den Schenkeln der Schwinge 19 befindet sich eine weitere Querachse 20 für einen Rasthebel 21. Dieser Rasthebel 21 wird von dem von der Auslösefeder 14 belasteten Kolben 15 gegen eine Nase 17a des Niederhalters 17 gedrückt.In the spring housing 13 there is a bore 13a extending in the longitudinal direction of the ski, in which a release spring 14 is accommodated, the pretensioning of which can be set in a manner known per se and checked by means of a mark (not shown) and a scale fixed to the housing. The end of the release spring 14 remote from the ski tip is supported on a piston 15. Arranged below the bore 13a in the spring housing 13 is an axis 16 which extends in the transverse direction and on which a U-shaped hold-down device 17 is mounted, as seen in the longitudinal direction of the ski. The legs of the hold-down device 17 are guided in slots in the spring housing 13. Above the bore 13a there is a transverse axis 18 on which a U-shaped rocker 19 is also mounted, as seen in the longitudinal direction of the ski. Between the legs of the rocker 19 there is another transverse axis 20 for a locking lever 21. This locking lever 21 is pressed by the piston 15 loaded by the release spring 14 against a nose 17a of the hold-down device 17.

Im Niederhalter 17 ist eine senkrecht zur Skioberseite verlaufende Schraube 22 angeordnet, welche im Niederhalter 17 mit Spiel drehbar, aber gegen axiales Verschieben gesichert, gelagert ist. Auf dieser Schraube 22 ist ein Sohlenniederhalter 23 aufgeschraubt. Die Schraube 22 durchsetzt eine Bohrung in der Trittplatte 4, die an dieser Stelle eine nach unten offene Ausnehmung hat, und trägt an ihrem unteren Ende eine Verdickung 22a, durch die der Verschiebeweg der Schraube 22 und damit der des Sohlenniederhalters 23 begrenzt ist.In the hold-down device 17 there is a screw 22 running perpendicular to the upper side of the ski, which screw is rotatably mounted in the hold-down device 17 with play, but is secured against axial displacement. A sole hold-down device 23 is screwed onto this screw 22. The screw 22 passes through a hole in the tread plate 4, which has a downwardly open recess at this point, and carries at its lower end a thickening 22a, through which the displacement of the screw 22 and thus that of the sole retainer 23 is limited.

Auf der Welle 7 ist über der Steuerscheibe 9 eine Nockenscheibe 24 befestigt, an der sich in der Fahrtstellung des Vorderbackens der Steg 19a der U-förmigen Schwinge 19 abstützt.On the shaft 7, a cam disk 24 is fastened above the control disk 9, on which the web 19a of the U-shaped rocker 19 is supported in the travel position of the front jaw.

In der Fahrtstellung des Vorderbackens nehmen alle Bauteile die in der Zeichnung dargestellte Lage ein. Dabei wird der Skischuh einerseits durch die beiden Schwenkbacken 11 und anderseits vom Sohlenniederhalter 23 festgehalten.In the travel position of the toe piece, all components assume the position shown in the drawing. The ski boot is held on the one hand by the two swivel jaws 11 and on the other hand by the sole hold-down device 23.

Erfolgt ein Drehsturz des Skiläufers, so werden die Trittplatte 4 und mit ihr das Federgehäuse 13 quer zur vertikalen Längsmittelebene des Ski bewegt. Dabei kommt der Steuerhebel 9a zur Anlage an einem Ende des Langloches 8a in der Steuerplatte 8 und wird von dieser mitgenommen. Gleichzeitig wird der Kolben 15 in der Bohrung 13a des Federgehäuses 13 durch die Nockenscheibe 24 über den Steg 19a der Schwinge 19 etwas zurückgeschoben. Wenn nun die vorgegebene Auslenkung der Trittplatte 4 bzw. des Federgehäuses 13 erreicht ist, wird das Stützglied 10 des einen Schwenkbacken 11 vom einen Anschlag 9b der Steuerscheibe 9 verschwenkt, so daß dieser Schwenkbacken 11 freigegeben wird.If the skier falls, the tread plate 4 and with it the spring housing 13 are moved transversely to the vertical longitudinal center plane of the ski. The control lever 9a comes to rest on one end of the elongated hole 8a in the control plate 8 and is carried by it. At the same time, the piston 15 is pushed back somewhat in the bore 13a of the spring housing 13 by the cam disk 24 via the web 19a of the rocker 19. When the predetermined deflection of the tread plate 4 or the spring housing 13 is reached, the support member 10 of the one pivot jaw 11 is pivoted by a stop 9b of the control disk 9, so that this pivot jaw 11 is released.

Wird hingegen ein Rückwärtsdrehsturz des Skiläufers eingeleitet, so wird der Sohlenniederhalter 23 angehoben, wobei dessen Verschiebeweg durch die Tiefe der Ausnehmung in der Trittplatte 4 begrenzt ist. Gleichzeitig wird vom Rasthebel 21 auf dessen Querachse 20 eine in Richtung zum Skischuh hin wirkende Kraft aufgebracht, wodurch die Schwinge 19 durch ihren Steg 19a einen Druck auf die Nockenscheibe 24 ausübt. Hiedurch verbleibt im Steuersystem des Vorderbackens eine Restkraft, welche die Zentrierung des Skischuhs nach wie vor aufrecht hält.If, on the other hand, a reverse turn of the skier is initiated, the sole hold-down device 23 is raised, the displacement path of which is caused by the Depth of the recess in the tread plate 4 is limited. At the same time, a force acting in the direction of the ski boot is applied by the locking lever 21 on its transverse axis 20, whereby the rocker 19 exerts pressure on the cam disk 24 through its web 19a. This leaves a residual force in the control system of the toe piece, which still maintains the centering of the ski boot.

Die Erfindung ist nicht an die in der Zeichnung dargestellte und im vorstehenden beschriebene Ausführungsform gebunden. Beispielsweise soll auch eine Ausführungsform, bei welcher der Weg, den die Trittplatte bei Drehstürzen zurücklegt, durch Anschläge begrenzt ist, unter den Schutz der Erfindung fallen. Des weiteren können die beiden Stützglieder 10 von je einer Feder beaufschlagt werden.The invention is not tied to the embodiment shown in the drawing and described above. For example, an embodiment in which the path covered by the tread plate in the event of a rotary fall is limited by stops is also to be covered by the protection of the invention. Furthermore, the two support members 10 can each be acted upon by a spring.

Claims (4)

  1. A safety ski binding, particularly a front clamp assembly, comprising a base plate (1) carrying a step plate (4) provided with a sprign housing (13) for a release spring (14) mounted thereon for displacement transversely of the longitudinal direction of the ski in opposition to the action of said spring, and two hinged jaws (11) for laterally engaging a ski boot mounted in said spring housing (13) for pivoting about vertical axle pins (12),
    characterized in that said spring housing (13) contains a rocker arm (19) of approximately U-shaped configuration as viewed in the direction of the longitudinal axis of the binding, mounted therein for pivoting about a transverse axle pin (18) or axle pin stubs, respectively, and carrying a further transverse axle pin (20) having mounted thereon a detent arm (21) subjected to the action of said release spring (14) by the intermediary of a piston (15) and taking support on a nose (17a) of a hold-down member (17) of U-shaped top plan view configuration mounted for pivoting about an additional transverse axle pin (16) and carrying a hold-down sole clamp (23).
  2. A safety ski binding according to claim 1, characterized in that the cross bar (19a) of said rocker arm (19) takes support on a cam disc (24) rigidly mounted on a shaft (7) itself rotatably mounted in said step plate (4).
  3. A safety ski binding according to claim 1, characterized in that said detent arm (21) is disposed between the two legs of said rocker arm (19), and that said transverse axle pin (18) for said rocker arm (19) is located in said spring housing (13) above the bore (13a) accommodating said release spring (14).
  4. A safety ski binding according to claim 1, characterized in that said transverse axle pin (16) for said hold-down member (17) is disposed below the bore (13a) accommodating said release spring (14) in a portion of said spring housing (13) extending between a stop member (2a) at a fixed position on the ski and the end of said spring housing (13) facing towards the tip of the ski.
EP87109486A 1986-08-22 1987-07-01 Safety ski binding, especially a toe binding Expired - Lifetime EP0257244B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2273/86 1986-08-22
AT0227386A AT385423B (en) 1986-08-22 1986-08-22 FRONT JAWS FOR SAFETY SKI BINDINGS

Publications (3)

Publication Number Publication Date
EP0257244A2 EP0257244A2 (en) 1988-03-02
EP0257244A3 EP0257244A3 (en) 1989-11-15
EP0257244B1 true EP0257244B1 (en) 1992-01-15

Family

ID=3531287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109486A Expired - Lifetime EP0257244B1 (en) 1986-08-22 1987-07-01 Safety ski binding, especially a toe binding

Country Status (4)

Country Link
US (1) US4779891A (en)
EP (1) EP0257244B1 (en)
AT (2) AT385423B (en)
DE (1) DE3776028D1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390203B (en) * 1988-03-24 1990-04-10 Tyrolia Freizeitgeraete FRONT JAW
AT390380B (en) * 1988-07-04 1990-04-25 Tyrolia Freizeitgeraete SAFETY SKI BINDING
AT390889B (en) * 1988-10-07 1990-07-10 Tyrolia Freizeitgeraete FRONT JAW
DE4022945A1 (en) * 1990-03-29 1992-01-23 Jungkind Roland SAFETY SKI BINDING WITH SWIVELING SOLE PANEL
FR2717705B1 (en) * 1994-03-24 1996-06-07 Frederic Paradis Front stop for alpine ski safety binding.
US7086662B2 (en) * 2001-01-30 2006-08-08 Trak Sports Usa, Inc. Ski binding
US7131936B2 (en) * 2004-03-17 2006-11-07 Schlosser Frank J Apparatus for training a body part of a person and method for using same
US7314435B2 (en) * 2005-02-07 2008-01-01 Schlosser Frank J Apparatus for training a body part of a person and method for using same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703719C3 (en) * 1968-07-02 1975-11-20 Fa. Heinrich Eckel, 8000 Muenchen Release jaws for ski bindings
FR1593995A (en) * 1968-12-04 1970-06-01 Beyl J
AT368396B (en) * 1980-07-24 1982-10-11 Tyrolia Freizeitgeraete TO BAKE
US4533156A (en) * 1980-12-30 1985-08-06 Tmc Corporation Toe mechanism for a safety ski binding
FR2548916B1 (en) * 1983-06-27 1986-04-18 Look Sa SECURITY FIXING FOR SKI
DE3403472A1 (en) * 1984-02-01 1985-08-08 Marker Patentverwertungsgesellschaft mbH, Baar FRONT JAWS FOR SAFETY SKI BINDINGS
AT383044B (en) * 1985-05-10 1987-05-11 Tyrolia Freizeitgeraete SAFETY FRONT JAWS FOR SKI BINDINGS

Also Published As

Publication number Publication date
EP0257244A2 (en) 1988-03-02
US4779891A (en) 1988-10-25
ATA227386A (en) 1987-09-15
ATE71547T1 (en) 1992-02-15
EP0257244A3 (en) 1989-11-15
DE3776028D1 (en) 1992-02-27
AT385423B (en) 1988-03-25

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