EP0531481B1 - Toe clamp - Google Patents

Toe clamp Download PDF

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Publication number
EP0531481B1
EP0531481B1 EP92906833A EP92906833A EP0531481B1 EP 0531481 B1 EP0531481 B1 EP 0531481B1 EP 92906833 A EP92906833 A EP 92906833A EP 92906833 A EP92906833 A EP 92906833A EP 0531481 B1 EP0531481 B1 EP 0531481B1
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EP
European Patent Office
Prior art keywords
section
ski
release plate
mounting member
cam face
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
EP92906833A
Other languages
German (de)
French (fr)
Other versions
EP0531481A1 (en
Inventor
Karl Stritzl
Helmut Wladar
Andreas Janisch
Hubert Würthner
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
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Publication date
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Publication of EP0531481A1 publication Critical patent/EP0531481A1/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
    • A63C9/08557—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
    • A63C9/08—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
    • A63C9/08514—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 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
    • A63C9/08507—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
    • A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor

Definitions

  • the invention relates to a toe piece according to the preamble of claim 1.
  • Such a front jaw is described for example in EP-A2-0408 855.
  • the trigger plate is flat in the vertical direction.
  • the bearing part has a rearward projection in its lower end section, which is used to abut the release plate.
  • the invention has set itself the goal of designing a front jaw of the type mentioned at the outset in such a way that the triggering behavior of the ski binding is linear or slightly progressive.
  • this object is achieved by the characterizing features of claim 1.
  • Characterized in that the release plate in its lower portion on its side facing the bearing part has a control surface and that the control surface - viewed in vertical longitudinal section - runs upwards and forwards, in cooperation with the rearward projection of the bearing part one for one linear or slightly progressive triggering behavior of the ski binding achieved a favorable course of the force action line.
  • control surface could be designed as a flat surface to be increased towards the front, it has proven to be advantageous to make the control surface of the release plate continuously curved in accordance with the features of claim 2.
  • the configuration according to the characterizing part of claim 3 enables a compact structure of the ski binding and an improved diagonal release behavior.
  • FIG. 1 shows a longitudinal section through the front jaw according to the invention in the ready-to-use position of the ski binding
  • FIG. 2 shows a detail of the front jaw cut along the line II-II of FIG. 1
  • FIG. 3 shows a representation similar to FIG. 2 with the side pivoted bearing part
  • Fig. 5 an illustration like Fig. 4, the sole holders being pivoted further upwards
  • FIGS. 4a and 5a each show details of FIGS. 4 and 5 in larger scale.
  • FIG. 1 shows the front jaw 1 according to the invention in the position ready for entry. It has a housing 2, which is fastened to a ski 50 by means of only indicated screws 51.
  • a release spring 40 is housed, the bias of which can be adjusted in a known manner by an adjusting device 43.
  • the release spring 40 is arranged between a spring plate 41 and, with the interposition of a bearing bush 42, a vertically running rear transverse wall 3 of the housing 2.
  • the release spring 40 is penetrated in the axial direction by a pull rod 10, one end 11 of which cooperates with the adjusting device 43 and the other end 12 of which is connected to a substantially vertically extending release plate 13.
  • the release plate 13 has at its lower end 14 a control surface 15 which is to be described in more detail later and toward the ski tip and a stop 16 pointing towards the rear, that is to say in the direction of a shoe to be inserted.
  • a first curve 5 connects to the vertically running rear transverse wall 3 of the housing 2 and a section 6 running horizontally to the rear.
  • the bearing part 20 is from seen in the rear frame-shaped, ie provided for the tie rod 10 with a through opening 21, and - seen in side view - has approximately the shape of a C.
  • the vertically extending section of the C is formed by the support wall 22 and is provided with a front support surface 23 and a rear Support surface 24 equipped.
  • the front support surface 23 of the bearing part 20 has two sections adjoining one another in the vertical direction, the lower section 25, viewed in the ready-for-entry position of the front jaw 2, abutting on the rear side 4 of the rear transverse wall 3 of the housing 2.
  • the upper section 26 forms an obtuse angle a with the lower section 25.
  • the bearing part 20 has a tilting edge 27.
  • the upper leg 32 of the bearing part 20 is provided in the region of the longitudinal central axis with a surface 28 which is inclined towards the rear and downwards.
  • the transition between the upper section 26 of the front support surface 23 and the surface 28 which is inclined backwards and downwards is designed as a further curve 29.
  • the bearing part 20 is fork-shaped in the area of the longitudinal central axis in plan view and has a recess 30 which is open towards the front and a projection 31 which is to be described in more detail to the rear.
  • a corresponding wedge-like projection 7 of the housing 2 is assigned to the recess 30.
  • a travel limiter 8 facing the stop 16 of the release plate 13 is also arranged on the housing 2.
  • the control surface 15 is curved forward (towards the tip of the ski) and continuously curved.
  • the Horizontal section shows that the control surface 15 essentially consists of a first section 15a running approximately transversely to the longitudinal axis of the ski, a second section 15b adjoining it, curved backwards, and an adjoining third section running approximately transversely to the longitudinal direction of the ski 15c, an adjoining, forwardly curved section 15d and an adjoining fifth section 15e, again running approximately transversely to the longitudinal axis of the ski.
  • the rearward projection 31 of the bearing part 20 is designed to match the control surface 15 and likewise has a rearwardly curved first section 31a, then a second section 31b which runs approximately transversely to the longitudinal axis of the ski, and then a forwardly curved third section 31c.
  • FIGS. 4 and 5 show how the bearing part 20 and the angle lever 35 are pivoted in the event of an upward increased force, for example in the event of a backward fall or backward turn fall.
  • the bearing part 20 is pivoted about the tilting edge 27 against the force of the release spring 40.
  • the release plate 13 detaches itself from the shorter lever arms 36 of the angle lever 35. This initially enables the angle lever 35 to be pivoted almost without force for a sideways release.
  • the spring 40 acts on the release plate 13 with the lower end 14 of the extension 31 in the closing direction of the toe 1.
  • the extension 31 and the control surface 15 touch each other depending on the degree of pivoting at different points or lines.
  • the wedge-shaped design of the projection 7, in cooperation with the recess 30, allows the bearing part 20 to pivot laterally.

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

Abstract

The invention relates to a toe clamp (1) with a housing (2) in which is fitted a release spring (40). The release spring (40) bears on a tension rod (10) passing through it which acts via a release plate (13) on the shorter lever arms (36) of two angled levers (35) which can pivot on a bearing component (20) about vertical axes (34) and the longer lever arms of which take the form of sole retainers (37). The bearing component (20) has a through aperture (21) for the tension rod (10) and has a backwardly-directed projection (31) at its lower end section to bear the release plate (13). According to the invention, on the side towards the bearing component (20) at its lower section (14), the release plate (13) has a control surface (15) which extends upwards and forwards when viewed in longitudinal cross-section. The backwardly directed projection (31) of the bearing component (20) has contacts with the control surface (15) at least pointwise on the occurence of an upwardly directed force on the sole retainer (37).

Description

Die Erfindung betrifft einen Vorderbacken gemäß dem Oberbegriff des Anspruches 1.The invention relates to a toe piece according to the preamble of claim 1.

Ein solcher Vorderbacken ist beispielsweise in der EP-A2-0408 855 beschrieben. Bei dieser bekannten Lösung ist die Auslöseplatte in vertikaler Richtung eben ausgebildet. Der Lagerteil hat in seinem unteren Endabschnitt einen nach hinten gerichteten Vorsprung, der zur Anlage der Auslöseplatte dient.Such a front jaw is described for example in EP-A2-0408 855. In this known solution, the trigger plate is flat in the vertical direction. The bearing part has a rearward projection in its lower end section, which is used to abut the release plate.

Diese Lösung ist zwar durchaus praktikabel, es hat sich aber herausgestellt, daß die ebene Ausgestaltung der Auslöseplatte bei vertikaler Krafteinwirkung zu einem degressiven Auslöseverhalten der Skibindung führte.This solution is indeed practicable, but it has been found that the flat design of the release plate with a vertical application of force led to a degressive release behavior of the ski binding.

Die Erfindung hat sich zum Ziel gesetzt, einen Vorderbacken der eingangs genannten Art so zugestalten, daß das Auslöseverhalten der Skibindung linear oder leicht progressiv ist.The invention has set itself the goal of designing a front jaw of the type mentioned at the outset in such a way that the triggering behavior of the ski binding is linear or slightly progressive.

Erfindungsgemäß wird diese Aufgabe durch die kennzeichnenden Merkmale des Anspruches 1 gelöst. Dadurch, daß die Auslöseplatte in ihrem unteren Abschnitt an ihrer dem Lagerteil zugewandten Seite eine Steuerfläche aufweist und daß die Steuerfläche - im vertikalen Längsschnitt betrachtet - nach oben und nach vorne zu verläuft, wird im Zusammenwirken mit dem nach hinten gerichteten Vorsprung des Lagerteiles ein für ein lineares oder leicht progressives Auslöseverhalten der Skibindung günstiger Verlauf der Kraftwirkungslinie erzielt.According to the invention, this object is achieved by the characterizing features of claim 1. Characterized in that the release plate in its lower portion on its side facing the bearing part has a control surface and that the control surface - viewed in vertical longitudinal section - runs upwards and forwards, in cooperation with the rearward projection of the bearing part one for one linear or slightly progressive triggering behavior of the ski binding achieved a favorable course of the force action line.

Man könnte zwar die Steuerfläche als nach vorne zu ansteigende ebene Fläche ausbilden, es hat sich aber als vorteilhaft erwiesen, die Steuerfläche der Auslöseplatte, gemäß den Merkmalen des Anspruches 2, kontinuierlich bogenförmig zu gestalten.Although the control surface could be designed as a flat surface to be increased towards the front, it has proven to be advantageous to make the control surface of the release plate continuously curved in accordance with the features of claim 2.

Durch die Ausgestaltung gemäß dem kennzeichnenden Teil des Anspruches 3 wird ein kompakter Aufbau der Skibindung und ein verbessertes Diagonalauslöseverhalten ermöglicht.The configuration according to the characterizing part of claim 3 enables a compact structure of the ski binding and an improved diagonal release behavior.

In Anspruch 4 ist eine vorzugsweise Ausgestaltung der Steuerkurve geschützt.In claim 4, a preferred embodiment of the control curve is protected.

Weitere Vorteile, Merkmale und Einzelheiten des erfindungsgemäßen Vorderbackens werden nun anhand der Zeichnung näher beschrieben. Dabei zeigen: Fig.1 einen Längsschnitt durch den erfindungsgemäßen Vorderbacken in der einstiegsbereiten Position der Skibindung, Fig.2 ein Detail des Vorderbackens geschnitten nach der Linie II-II der Fig.1, Fig.3 eine Darstellung ähnlich der Fig.2 mit seitlich verschwenktem Lagerteil, Fig.4 Teile des Vorderbackens im Längsschnitt im leicht nach oben verschwenkten Zustand, Fig.5 eine Darstellung wie Fig.4, wobei die Sohlenhalter weiter nach oben verschwenkt sind und die Figuren 4a udn 5a jeweils Details der Figuren 4 und 5 in größerem Maßstab.Further advantages, features and details of the toe piece according to the invention will now be described in more detail with reference to the drawing. 1 shows a longitudinal section through the front jaw according to the invention in the ready-to-use position of the ski binding, FIG. 2 shows a detail of the front jaw cut along the line II-II of FIG. 1, FIG. 3 shows a representation similar to FIG. 2 with the side pivoted bearing part, Fig. 4 parts of the front jaw in longitudinal section in the state slightly pivoted upwards, Fig. 5 an illustration like Fig. 4, the sole holders being pivoted further upwards, and FIGS. 4a and 5a each show details of FIGS. 4 and 5 in larger scale.

In der Fig.1 ist der erfindungsgemäße Vorderbacken 1 in der einstiegsbereiten Stellung dargestellt. Er besitzt ein Gehäuse 2, das mittels nur angedeuteter Schrauben 51 auf einem Ski 50 befestigt ist. Im Gehäuse 2 ist eine Auslösefeder 40 untergebracht, deren Vorspannung in bekannter Weise durch eine Einstellvorrichtung 43 eingestellt werden kann. Die Auslösefeder 40 ist zwischen einem Federteller 41 und, unter Zwischenschaltung einer Lagerbuchse 42, einer vertikal verlaufenden hinteren Querwand 3 des Gehäuses 2 angeordnet. Die Auslösefeder 40 wird in axialer Richtung von einer Zugstange 10 durchsetzt, deren eines Ende 11 mit der Einstellvorrichtung 43 zusammenwirkt und deren anderes Ende 12 mit einer im wesentlichen vertikal verlaufenden Auslöseplatte 13 verbunden ist. Die Auslöseplatte 13 weist an ihrem unteren Ende 14 eine später noch genauer zu beschreibende zur Skispitze hin gerichtete Steuerfläche 15 und einen nach hinten, also in Richtung eines einzusetzenden Schuhs weisenden Anschlag 16 auf.1 shows the front jaw 1 according to the invention in the position ready for entry. It has a housing 2, which is fastened to a ski 50 by means of only indicated screws 51. In the housing 2, a release spring 40 is housed, the bias of which can be adjusted in a known manner by an adjusting device 43. The release spring 40 is arranged between a spring plate 41 and, with the interposition of a bearing bush 42, a vertically running rear transverse wall 3 of the housing 2. The release spring 40 is penetrated in the axial direction by a pull rod 10, one end 11 of which cooperates with the adjusting device 43 and the other end 12 of which is connected to a substantially vertically extending release plate 13. The release plate 13 has at its lower end 14 a control surface 15 which is to be described in more detail later and toward the ski tip and a stop 16 pointing towards the rear, that is to say in the direction of a shoe to be inserted.

An die vertikal verlaufende hintere Querwand 3 des Gehäuses 2 schließt oben eine erste Kurve 5 und daran ein horizontal nach hinten verlaufender Abschnitt 6 an. An der Rückseite 4 der hinteren Querwand 3 des Gehäuses 2 liegt in der einstiegsbereiten Stellung des Vorderbackens 1 ein Lagerteil 20 mit seiner Stützwand 22 an. Der Lagerteil 20 ist von hinten gesehen rahmenförmig, d.h. für die Zugstange 10 mit einer Durchgangsöffnung 21 versehen, und hat - in Seitenansicht gesehen - etwa die Form eines C. Der vertikal verlaufende Abschnitt des C ist durch die Stützwand 22 gebildet und ist mit einer vorderen Stützfläche 23 und einer hinteren Stützfläche 24 ausgestattet. In oberen und unteren Schenkeln 32,33 des C sind symmetrisch zur Längsmittelachse des Vorderbackens 2 zwei nur angedeutete Achsen 34 für Winkelhebel 35 angeordnet. Die kürzeren Hebelarme 36 der beiden Winkelhebel 35 stützen sich einerseits an der Auslöseplatte 13 und andererseits an der hinteren Stützfläche 24 des Lagerteils 20 ab. Die längeren Hebelarme der Winkelhebel 35 sind als Sohlenhalter 37 für den nicht dargestellten Skischuh ausgebildet. Die vordere Stützfläche 23 des Lagerteiles 20 weist zwei in Höhenrichtung aneinander grenzende Abschnitte auf, wobei der untere Abschnitt 25, in der einstiegsbereiten Stellung des Vorderbackens 2 betrachtet, an der RückSeite 4 der hinteren Querwand 3 des Gehäuses 2 anliegt. Der obere Abschnitt 26 schließt mit dem unteren Abschnitt 25 einen stumpfen Winkel a ein. Zwischen dem oberen Abschnitt 26 und dem unteren Abschnitt 25 hat der Lagerteil 20 eine Kippkante 27. Der obere Schenkel 32 des Lagerteiles 20 ist im Bereich der Längsmittelachse mit einer nach hinten und nach unten zu geneigten Fläche 28 ausgestattet. Der Übergang zwischen dem oberen Abschnitt 26 der vorderen Stützfläche 23 und der nach hinten und unten geneigten Fläche 28 ist als weitere Kurve 29 ausgebildet. In seinem unteren Abschnitt ist der Lagerteil 20 im Bereich der Längsmittelachse in der Draufsicht gabelförmig ausgebildet und weist eine nach vorne offene Ausnehmung 30 und einen noch näher zu beschreibenden nach hinten gerichteten Vorsprung 31 auf. Der Ausnehmung 30 ist ein entsprechender keilartiger Vorsprung 7 des Gehäuses 2 zugeordnet. Am Gehäuse 2 ist weiters ein dem Anschlag 16 der Auslöseplatte 13 zugewandter Wegbegrenzer 8 angeordnet.A first curve 5 connects to the vertically running rear transverse wall 3 of the housing 2 and a section 6 running horizontally to the rear. On the rear side 4 of the rear transverse wall 3 of the housing 2, in the ready-to-use position of the front jaw 1, there is a bearing part 20 with its support wall 22. The bearing part 20 is from seen in the rear frame-shaped, ie provided for the tie rod 10 with a through opening 21, and - seen in side view - has approximately the shape of a C. The vertically extending section of the C is formed by the support wall 22 and is provided with a front support surface 23 and a rear Support surface 24 equipped. In the upper and lower legs 32, 33 of the C, two only indicated axes 34 for angle levers 35 are arranged symmetrically to the longitudinal central axis of the toe piece 2. The shorter lever arms 36 of the two angle levers 35 are supported on the one hand on the release plate 13 and on the other hand on the rear support surface 24 of the bearing part 20. The longer lever arms of the angle lever 35 are designed as sole holders 37 for the ski boot, not shown. The front support surface 23 of the bearing part 20 has two sections adjoining one another in the vertical direction, the lower section 25, viewed in the ready-for-entry position of the front jaw 2, abutting on the rear side 4 of the rear transverse wall 3 of the housing 2. The upper section 26 forms an obtuse angle a with the lower section 25. Between the upper section 26 and the lower section 25, the bearing part 20 has a tilting edge 27. The upper leg 32 of the bearing part 20 is provided in the region of the longitudinal central axis with a surface 28 which is inclined towards the rear and downwards. The transition between the upper section 26 of the front support surface 23 and the surface 28 which is inclined backwards and downwards is designed as a further curve 29. In its lower section, the bearing part 20 is fork-shaped in the area of the longitudinal central axis in plan view and has a recess 30 which is open towards the front and a projection 31 which is to be described in more detail to the rear. A corresponding wedge-like projection 7 of the housing 2 is assigned to the recess 30. A travel limiter 8 facing the stop 16 of the release plate 13 is also arranged on the housing 2.

Die Steuerfläche 15 ist nach vorne (zur Skispitze hin) zu ansteigend und kontinuierlich bogenförmig ausgebildet. Im Horizontalschnitt (s.Fig.2) erkennt man, daß die Steuerfläche 15 im wesentlichen aus einem ersten etwa quer zur Skilängsachse verlaufenden Abschnitt 15a, einem daran anschließenden, nach hinten gekrümmten zweiten Abschnitt 15b, einem daran anschließenden, etwa quer zur Skilängsrichtung verlaufenden dritten Abschnitt 15c, einem daran anschließenden, nach vorne gekrümmten Abschnitt 15d und einem daran anschließenden, wieder etwa quer zur Skilängsachse verlaufenden fünften Abschnitt 15e besteht.The control surface 15 is curved forward (towards the tip of the ski) and continuously curved. in the Horizontal section (see Fig. 2) shows that the control surface 15 essentially consists of a first section 15a running approximately transversely to the longitudinal axis of the ski, a second section 15b adjoining it, curved backwards, and an adjoining third section running approximately transversely to the longitudinal direction of the ski 15c, an adjoining, forwardly curved section 15d and an adjoining fifth section 15e, again running approximately transversely to the longitudinal axis of the ski.

Der nach hinten gerichtete Vorsprung 31 des Lagerteiles 20 ist zur Steuerfläche 15 passend ausgebildet und weist ebenfalls einen nach hinten gekrümmten ersten Abschnitt 31a, daran anschließend einen etwa quer zur Skilängsachse verlaufenden zweiten Abschnitt 31b, und danach einen nach vorne gekrümmten dritten Abschnitt 31c auf.The rearward projection 31 of the bearing part 20 is designed to match the control surface 15 and likewise has a rearwardly curved first section 31a, then a second section 31b which runs approximately transversely to the longitudinal axis of the ski, and then a forwardly curved third section 31c.

In den Figuren 4 und 5 ist dargestellt, wie Lagerteil 20 und Winkelhebel 35 bei einer nach oben gerichteten erhöhten Kraft, beispielsweise bei einem Rückwärtssturz oder Rückwärtsdrehsturz, verschwenkt werden. Dabei wird der Lagerteil 20 gegen die Kraft der Auslösefeder 40 um die Kippkante 27 verschwenkt. Wie in Fig.4 erkennbar, löst sich dabei die Auslöseplatte 13 von den kürzeren Hebelarmen 36 der Winkelhebel 35. Dadurch wird ein zunächst nahezu kraftloses Verschwenken der Winkelhebel 35 für eine Seitwärtsauslösung ermöglicht. In den Figuren 4 und 5 ist weiters erkennbar, daß die Feder 40 über die Auslöseplatte 13 mit deren unterem Ende 14 den Fortsatz 31 in Schließrichtung des Vorderbackens 1 beaufschlägt. Dabei berühren einander der Fortsatz 31 und die Steuerfläche 15 je nach dem Grad der Verschwenkung an verschiedenen Punkten bzw. Linien. Die keilförmige Ausbildung des Vorsprunges 7 gestattet im Zusammenwirken mit der Ausnehmung 30 ein seitliches Verschwenken des Lagerteiles 20.FIGS. 4 and 5 show how the bearing part 20 and the angle lever 35 are pivoted in the event of an upward increased force, for example in the event of a backward fall or backward turn fall. The bearing part 20 is pivoted about the tilting edge 27 against the force of the release spring 40. As can be seen in FIG. 4, the release plate 13 detaches itself from the shorter lever arms 36 of the angle lever 35. This initially enables the angle lever 35 to be pivoted almost without force for a sideways release. In Figures 4 and 5 it can also be seen that the spring 40 acts on the release plate 13 with the lower end 14 of the extension 31 in the closing direction of the toe 1. The extension 31 and the control surface 15 touch each other depending on the degree of pivoting at different points or lines. The wedge-shaped design of the projection 7, in cooperation with the recess 30, allows the bearing part 20 to pivot laterally.

In Fig.3 ist die Position des Fortsatzes 31 relativ zur Steuerfläche 15 bei einem Rückwärtsdrehsturz vereinfacht dargestellt. Der Fortsatz 31 berührt hier mit seinem etwa quer zur Skilängsachse verlaufenden Abschnitt 31b den ersten Abschnitt 15a der Steuerfläche 15.In Figure 3, the position of the extension 31 relative to the control surface 15 is shown in a simplified reverse fall. The extension 31 touches with his about Section 31b running transversely to the longitudinal axis of the ski, the first section 15a of the control surface 15.

Es ist leicht erkennbar, daß dadurch die Auslöseplatte 13 weiter in Öffnungsrichtung (in der Zeichnung nach rechts) gedrückt wird. Dadurch vergrößert sich gleichzeitig der Abstand zwischen dem oberen Abschnitt der Auslöseplatte 13 und der hinteren Stützfläche 24 des Lagerteils 20, wodurch der Bereich des kraftlosen Verschwenkens der Winkelhebel 35 vergrößert wird. Ein allzuweites Hochschwenken der Sohlenhalter 37 und damit ein unerwünschtes Freikommen des Skischuhes wird dadurch vermieden, daß der Schwenkweg des Lagerteils 20 durch das Auftreffen des Anschlages 16 der Auslöseplatte 13 auf den Wegbegrenzer 8 begrenzt ist.It is easy to see that this triggers the release plate 13 further in the opening direction (to the right in the drawing). As a result, the distance between the upper section of the release plate 13 and the rear support surface 24 of the bearing part 20 increases at the same time, as a result of which the area of the force-free pivoting of the angle lever 35 is increased. An excessive pivoting up of the sole holder 37 and thus an undesired release of the ski shoe is avoided in that the pivoting path of the bearing part 20 is limited by the impact of the stop 16 of the release plate 13 on the travel limiter 8.

Die Erfindung ist nicht an das in der Zeichnung dargestellte und im vorstehenden beschriebene Ausführungsbeispiel gebunden. Vielmehr sind verschiedene Abänderungen desselben möglich, ohne den Rahmen der Erfindung zu verlassen. Beispielsweise wäre es möglich, den am Gehäuse vorgesehenen Wegbegrenzer so nach oben zu verlängern, daß er gleichzeitig das Eindringen von Schnee in die Skibindung hintanhält.The invention is not tied to the embodiment shown in the drawing and described above. Rather, various modifications thereof are possible without leaving the scope of the invention. For example, it would be possible to extend the travel limiter provided on the housing so that it simultaneously prevents snow from penetrating into the ski binding.

Claims (4)

  1. A front clamp assembly (1) comprising a housing (2) adapted to be secured to a ski and accommodating therein a release spring (40) acting on a pull rod (10) extending through said housing (2) and acting through a release plate (13) on the shorter lever arms (36) of two crank levers (35) mounted on a mounting member (20) for pivoting about vertical pins (34) and having their longer lever arms formed as sole clamp members (37) for a ski boot, said mounting member (20) being provided with an opening (21) for said pull rod (10) to pass therethrough, and having its lower end portion provided with a rearwards directed projection (31) for said release plate (13) to take support thereon, characterized in that said release plate (13) has its lower portion (14) provided with a cam face (15) at the side facing said mounting member (20), that said cam face (15) - as viewed in vertical longitudinal section - extends in an upward and forward direction, and that said rearwards directed projection (31) of said mounting member (20) is in at least punctate contact with said cam face (15) on occurrence of an upwards directed force acting on said sole clamp members (37).
  2. A front clamp assembly according to claim 1, characterized in that said cam face (15) of said release plate (13) is of continuous arcuate configuration.
  3. A front clamp assembly according to claim 1 or 2, characterized in that both said cam face (15) of said release plate (13) and said projection (31) of said mounting member (20) are of arcuate configuration when viewed from on top, with the two configurations being preferably approximately congruent with one another.
  4. A front clamp assembly according to claim 3, characterized in that said cam face (15) substantially consists of a first section (15a) extending approximately transversely of the longitudinal axis of the ski, followed by a rearwards curved second section (15b), followed by a third section (15c) extending approximately transversely of the longitudinal direction of the ski, followed by a forwards curved fourth section (15d) followed by a fifth section (15e) again extending approximately transversely of the longitudinal axis of the ski, and that said projection (31) of said mounting member substantially comprises a rearwards curved first section (31a), followed by a second section (31b) extending approximately transversely of the longitudinal axis of the ski, and thereafter a forwards curved third section (31c).
EP92906833A 1991-03-28 1992-03-25 Toe clamp Expired - Lifetime EP0531481B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0068491A AT397472B (en) 1991-03-28 1991-03-28 FRONT JAW
AT684/91 1991-03-28
PCT/EP1992/000653 WO1992017250A1 (en) 1991-03-28 1992-03-25 Toe clamp

Publications (2)

Publication Number Publication Date
EP0531481A1 EP0531481A1 (en) 1993-03-17
EP0531481B1 true EP0531481B1 (en) 1994-09-21

Family

ID=3497091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92906833A Expired - Lifetime EP0531481B1 (en) 1991-03-28 1992-03-25 Toe clamp

Country Status (7)

Country Link
US (1) US5257798A (en)
EP (1) EP0531481B1 (en)
JP (1) JPH0785751B2 (en)
AT (1) AT397472B (en)
CA (1) CA2077905A1 (en)
DE (1) DE59200534D1 (en)
WO (1) WO1992017250A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT396337B (en) * 1991-03-28 1993-08-25 Tyrolia Freizeitgeraete FRONT JAW
DE59404809D1 (en) * 1993-07-21 1998-01-29 Tyrolia Freizeitgeraete Toe pieces
WO1997014479A1 (en) * 1995-10-19 1997-04-24 Erwin Weigl Fastener for a ski binding
FR2743728B1 (en) 1996-01-19 1998-04-24 Salomon Sa RETAINER OF A SHOE ON A SKI
ATE243052T1 (en) * 1997-01-29 2003-07-15 Look Fixations Sa SAFETY BINDINGS ON THE TOP OF THE SKI BOOTS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2448769C2 (en) * 1974-10-12 1982-08-26 Geze Gmbh, 7250 Leonberg Holding device for safety ski bindings
AT360399B (en) * 1978-04-27 1980-01-12 Tyrolia Freizeitgeraete SAFETY SKI BINDING, IN PARTICULAR BAKING
FR2531342A1 (en) * 1982-08-03 1984-02-10 Look Sa FRONT STOP OF SAFETY FOR SKI
AT396065B (en) * 1989-03-28 1993-05-25 Tyrolia Freizeitgeraete FRONT JAW
DE59004288D1 (en) * 1989-07-21 1994-03-03 Tyrolia Freizeitgeraete Toe pieces.
AT396067B (en) * 1989-09-01 1993-05-25 Tyrolia Freizeitgeraete FRONT JAW
AT398042B (en) * 1989-11-03 1994-08-25 Tyrolia Freizeitgeraete FRONT JAW

Also Published As

Publication number Publication date
JPH0785751B2 (en) 1995-09-20
JPH05504088A (en) 1993-07-01
DE59200534D1 (en) 1994-10-27
WO1992017250A1 (en) 1992-10-15
CA2077905A1 (en) 1992-09-29
ATA68491A (en) 1993-09-15
EP0531481A1 (en) 1993-03-17
AT397472B (en) 1994-04-25
US5257798A (en) 1993-11-02

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