EP0344249B1 - Jaw, in particular front jaw - Google Patents

Jaw, in particular front jaw Download PDF

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Publication number
EP0344249B1
EP0344249B1 EP88910007A EP88910007A EP0344249B1 EP 0344249 B1 EP0344249 B1 EP 0344249B1 EP 88910007 A EP88910007 A EP 88910007A EP 88910007 A EP88910007 A EP 88910007A EP 0344249 B1 EP0344249 B1 EP 0344249B1
Authority
EP
European Patent Office
Prior art keywords
ski
sole
jaw assembly
wedge element
mounting body
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
EP88910007A
Other languages
German (de)
French (fr)
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EP0344249A1 (en
Inventor
Karl Stritzl
Franz Luschnig
Henry 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
TMC Corp
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Publication date
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Publication of EP0344249A1 publication Critical patent/EP0344249A1/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
    • A63C9/005—Ski bindings with means for adjusting the position of a shoe holder or of the complete binding relative to the ski
    • 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
    • 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
    • A63C9/08557—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
    • A63C9/001—Anti-friction 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
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08592—Structure or making

Definitions

  • the invention relates to a jaw, in particular a toe, for safety ski bindings, which has a sole hold-down arranged on a bolt and two angle levers, the angle levers being rotatably mounted about an axis arranged on a support body and pivoting sideways against the force of a spring, and wherein the sole hold-down device can be moved upwards by a compensating lever against the force of the spring when it acts vertically and away from the top of the ski (upwards), which is designed as a two-armed lever and is pivotably mounted about a bearing axis arranged on the supporting body, the compensating lever at least on its one arm has two arm sections which preferably run parallel to one another, each of which rests on one of the angle levers at least in the downward position of the jaw either directly or with the interposition of an intermediate lever, the compensating lever with its other Arm resiliently supported opposite the sole retainer and articulated with the bolt, which bolt is guided displaceably in the vertical direction, the range of movement of the sole retainer being limited upwards
  • the invention is intended to compensate for the additional frictional forces that occur between the ski boot sole and the angle levers, even when the forces act exclusively in the longitudinal direction of the ski.
  • the measure according to the invention separates the support of the ski boot sole on the angle levers and on the wedge element.
  • the ski boot can also move the wedge element when there is only a force acting in the direction of the longitudinal axis of the ski, which in turn moves the support part in a known manner and, via this, the bolt in the vertical direction, as a result of which the compensating lever is pivoted and the two angle levers somewhat apart against the force of the spring presses.
  • the angle levers are thus relieved, which makes it easier to release the ski boot.
  • the measure according to the invention contained in claim 3 achieves a particularly compact structure of the baking.
  • FIG. 1 and 2 show the toe piece according to the invention in the driving position, wherein FIG. 1 is a side view in section and FIG. 2 is a section along the line II-II in FIG. 1, FIGS. 3 and 4 are the toe piece in its Position during a force acting on it in the longitudinal direction of the ski, wherein FIG. 3 is a side view in section and FIG. 4 is a section along the line IV-IV in FIG. 3, FIG. 5 is a compensating lever in an oblique view, and FIG. 6 shows a detail FIGS. 2 and 7 show a detail of FIG. 1.
  • a support body 14 is fastened on a ski 1 with its area designed as a support plate 14a by means of screws 2.
  • the support body 14 can also be arranged on a base plate, which can be displaced in a manner known per se on a ski-fixed guide rail in the longitudinal direction of the ski and can be locked in different positions.
  • the support body 14 carries by means of pins 16 designed as axles known angle levers 15 which are pivotally mounted about them.
  • the support body 14 is as a substantially perpendicular to the top of the ski 1 wall 14c formed, which is designed in its upper region as a bearing sleeve 14b, which by means of a bearing axis 17 a pivotable connection with a to be described in more detail with reference to FIG. 5, as Two-armed lever designed compensating lever 10.
  • a spring 5 acts on one end of the wall 14c of the support body 14, the other end of the spring 5 is supported in a sleeve-shaped abutment 8.
  • the bias of the spring 5 is adjustable in a manner known per se by means of an adjusting screw 7; the respective spring setting can be read off on a known display device 9 indicated in FIGS. 1 and 3.
  • the pull rod 6 is, viewed in its longitudinal direction and, as is known per se, divided into two sections, of which one section is provided with an external thread and engages in the set screw 7 and the second section is designed with a smooth outer surface and in one the wall 14c of the support body 14 is guided in a longitudinally displaceable guide bushing 28, the latter also serving as an abutment for the spring 5 and the guide pin 6a being mounted in the pull rod 6 so as to be longitudinally displaceable.
  • the toe piece is largely surrounded by a housing 25.
  • a sole hold-down device 22 for the ski shoe sole 11a of a ski shoe 11 is rotatably mounted on a bolt 21, the compensating lever 10 also being arranged on the bolt 21 by means of its one arm, which is designed as a web-like fastening part 10b.
  • An elastic element 23 and a securing ring 24 are arranged between the sole hold-down device 22 and the fastening part 10b.
  • the upper section 21a of the bolt 21 has a thread which engages in a counter thread of the sole hold-down device 22 and a screw head provided, whereby the sole hold-down device 22 can be adapted to different height ski shoe soles 11a.
  • a short middle section 21b with a smooth surface adjoins the upper section 21a of the bolt 21 in the direction of the upper side of the ski, and a lower section 21c with a smaller diameter adjoins this, the lower section 21c likewise having a smooth surface.
  • the lower section 21c of the bolt 21 passes through a bore 14d in the support plate 14a, which in this area has an upside-down U-shaped embossing 14e.
  • the lower end 21d of the bolt 21 is provided with a rivet head 21d, the diameter of which is larger than the diameter of the bore 14d.
  • the compensating lever 10 viewed in side view, is designed as a two-armed lever, one of which, approximately horizontally extending arm, is formed by the fastening part 10b and the other, essentially vertically extending arm 10a, two , approximately mutually parallel arm sections 10c, 10e and 10d, 10f each consisting of two sections.
  • the first two subsections 10c, 10d adjoining the fastening part 10b run at an acute angle ⁇ to the fastening part 10b, whereas the second, free-standing partial sections 10e, 10f adjoining the first two subsections 10c, 10d run at an angle ⁇ are cranked.
  • the bearing axis 17 passes through the first two sections 10c, 10d of the individual arm sections 10c, 10e and 10d, 10f of the compensating lever 10, which is pivotably articulated on the bearing sleeve 14b of the support body 14 via the bearing axis 17.
  • a wedge element 27 connected to the guide pin 6a of the pull rod 6 by means of its front wall 27i is displaceably guided in a manner to be described in more detail.
  • the wedge element 27 carries the ski boot 11 on it facing side two axle bolts 27a, on each of which a support roller 27b is arranged, against which - when the ski boot 11 is inserted in the jaws - the ski boot sole 11a bears.
  • the wedge element 27 has between its two support rollers 27b a recess 27d which runs in the longitudinal direction of the ski and is provided for receiving the bolt 21 and permits longitudinal displacement of the wedge element 27 on the support body 14 relative to the bolt 21.
  • the two side walls 27e, 27f of the recess 27d run from the diameter of the bolt 21 in the direction of the ski boot 11 in one plane and essentially parallel to one another, which results in a guide for the wedge element 27 on the bolt 21.
  • the two partial areas 27g, 27h of the wedge element 27 adjoining the recess 27d are each provided with an inclined surface 27c running at an acute angle ⁇ of approximately 30 ° to the top of the ski (cf. FIG. 7).
  • On the inclined surfaces 27c of the wedge element 27 lie inclined surfaces 26a of a support part 26.
  • the support part 26 is pushed onto the lower section 21c of the bolt 21 and is held in position on the bolt 21 on one side by the wedge element 27 and on the other by the flange-like enlarged diameter of the central section 21b of the bolt 21.
  • the wedge element 27 has on its side facing away from the two axle bolts 27a the upstanding front wall 27i, in which the guide bolt 6a is anchored.
  • the ski boot 11 acts on the hold-down device 22 with a vertically upward force.
  • the compensating lever 10 connected to the sole hold-down device 22 pivots counterclockwise about the bearing axis 17, the two free partial sections 10e, 10f of the Compensation lever 10 act on the angle lever 15 so that they pivot about their bolts 16 to the outside.
  • the pivoting movement of the angle lever 15 results in a slide movement, as occurs when the triggering is horizontal, and the spring 5 is compressed.
  • the movement of the sole holding-down device 22 or the pivoting range of the compensating lever 10 is limited by the riveting head 21d of the bolt 21 striking the embossing 14e of the support plate 14.
  • the elastic element 23 allows the pivoting movement of the compensating lever 10 without moving the sole hold-down device 22 out of its position relative to the ski bottom side.
  • the ski boot sole 11a acts on one of the angle levers 15 and the wedge element 27 and moves the latter on the support body 14 in the direction of the ski tip.
  • the supporting part 26, and with it the bolt 21, is moved upward over the interacting inclined surfaces 27a of the wedge element 27 and 26a of the supporting part 26.
  • the entrainment of the bolt 21 is ensured by the central section 21b of the bolt 21.
  • the compensating lever 10 connected to the sole hold-down device 22 pivots counterclockwise about the bearing axis 17, the two arm sections 10e, 10f of the compensating lever 10 act on the angle levers 15, so that they pivot about the bolts 16 to the outside.
  • the sequence of movements taking place above the compensating lever 10 thus corresponds to that which occurs in the case of a reverse turning fall, as has already been described.
  • the center distance a is 30-36 mm
  • the chord height h ie the distance between the arc section of the ski shoe sole 11a and the shoe-side tangent of the two support rollers 27b, measured in the longitudinal axis of the jaw, 1.5-2.5 mm.
  • a constant release force is therefore present in all possible release directions.
  • the frictional forces occurring between the ski boot sole 11a and the sole hold-down 22 or the angle levers 15 have no influence on the triggering forces.
  • the cooperating inclined surfaces 26a, 27c of the support part 26 and the wedge element 27 are advantageously coated with a material which reduces the sliding friction between these parts.
  • the friction occurring between the underside 27a of the wedge element 27 and the upper side of the supporting body 14 can also be reduced in that these components are coated or designed with a friction-reducing material.
  • the inclination of the inclined surfaces 26a, 27c relative to the upper side of the ski determines the extent of the force which is transmitted in the longitudinal direction of the ski to the compensating lever 10 and from this to the angle lever 15. In this regard, the designer is given a certain amount of leeway depending on the further structure of the jaw.
  • the invention is not limited to the illustrated embodiment, in particular not limited to the toes described.
  • the compensating lever and the wedge element cooperating with the support part can be arranged on any front jaws having angle levers.
  • the elastic element can also be arranged in the area between the compensating lever and that area of the supporting body on which the bolts of the angle levers are mounted. If the jaw is arranged on a guide rail, the formation of an embossing on the support plate is unnecessary, since there is sufficient space between the latter and the guide rail for the vertical movement of the stop of the bolt.
  • a stop for example on the housing, could also be provided to limit the vertical movement of the bolt or the sole hold-down device.

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

Abstract

A jaw, in particular a front jaw for ski safety bindings, comprises a sole grip (22) arranged on a pin (21) and two elbow levers (15) each of which is rotatably mounted on an axis (16) arranged on a support (14) and pivots laterally against the force of a spring (5). The sole grip (22) is moved upward against the force of the spring (5) by a force exerted vertically upward on the sole grip by a compensating lever (10) adjacent to one of the elbow levers (15), either immediately or through an intercalated intermediate lever. The pin (21) can be moved vertically and in the event of overloading is actuated by a wedge (27) guided on the support (14), on which the ski boot rests. A compensation of the additional frictional forces acting on the sole grip (22) in the event of a twist during a forward or backward fall is thereby achieved. The wedge (27), which supports the ski boot (11), has two supporting rollers and is connected to a longitudinally mobile guiding pin (6a) mounted in a sleeve-like traction rod (6) which engages in the elbow levers (15).

Description

Die Erfindung betrifft einen Backen, insbesondere einen Vorderbacken, für Sicherheitsskibindungen, welcher einen an einem Bolzen angeordneten Sohlenniederhalter und zwei Winkelhebel aufweist, wobei die Winkelhebel um je eine an einem Tragkörper angeordnete Achse drehbar gelagert und gegen die Kraft einer Feder seitlich ausschwenkbar sind, und wobei der Sohlenniederhalter bei einer auf ihn vertikal und von der Skioberseite weg (nach oben) wirkenden Kraft über einen Ausgleichshebel gegen die Kraft der Feder nach oben bewegbar ist, welcher als zweiarmiger Hebel ausgebildet und um eine am Tragkörper angeordnete Lagerachse schwenkbar gelagert ist, wobei der Ausgleichshebel zumindest an seinem einen Arm zwei vorzugsweise parallel zueinander verlaufende Armabschnitte aufweist, von denen jeder zumindest in der Abfahrtsstellung des Backens entweder unmittelbar oder unter Zwischenschaltung eines Zwischenhebels an je einem der Winkelhebel anliegt, wobei der Ausgleichshebel mit seinem anderen Arm dem Sohlenniederhalter gegenüber elastisch abgestützt und mit dem Bolzen gelenkig verbunden ist, welcher Bolzen in Höhenrichtung verschiebbar geführt ist, wobei der Bewegungsbereich des Sohlenniederhalters nach oben durch einen Anschlag begrenzt ist, und wobei am Tragkörper ein Keilelement in Skilängsrichtung verschiebbar geführt ist, welches bei in den Backen eingesetztem Skischuh an der Skischuhsohle anliegt und welches zumindest eine Schrägfläche aufweist, die mit zumindest einer Schrägfläche eines Stützteiles zusammenwirkt, der an dem den Sohlenniederhalter tragenden Bolzen gegen ein Verschieben gesichert gehalten ist, nach österr. Patent Nr. 372.616, wobei eine Zugstange vorgesehen ist, die den Tragkörper durchsetzt, einerends an den beiden Winkelhebeln angreift und anderends von einer in ihrer Vorspannung mittels einer Stellschraube einstellbaren Feder beaufschlagt ist.The invention relates to a jaw, in particular a toe, for safety ski bindings, which has a sole hold-down arranged on a bolt and two angle levers, the angle levers being rotatably mounted about an axis arranged on a support body and pivoting sideways against the force of a spring, and wherein the sole hold-down device can be moved upwards by a compensating lever against the force of the spring when it acts vertically and away from the top of the ski (upwards), which is designed as a two-armed lever and is pivotably mounted about a bearing axis arranged on the supporting body, the compensating lever at least on its one arm has two arm sections which preferably run parallel to one another, each of which rests on one of the angle levers at least in the downward position of the jaw either directly or with the interposition of an intermediate lever, the compensating lever with its other Arm resiliently supported opposite the sole retainer and articulated with the bolt, which bolt is guided displaceably in the vertical direction, the range of movement of the sole retainer being limited upwards by a stop, and wherein a wedge element is guided on the support body in the longitudinal direction of the ski, which is guided in at the ski shoe inserted into the cheek rests on the sole of the ski shoe and which has at least one inclined surface which interacts with at least one inclined surface of a support part which is secured against displacement on the bolt holding the sole holding-down device, in accordance with Austrian Patent No. 372,616, a pull rod being provided is, which penetrates the support body, one end engages the two angle levers and the other is acted upon by a spring adjustable in its pretension by means of an adjusting screw.

Nach AT-A-368396 und AT-A-372616 wird bei einem Vorderbacken eine Kompensation der bei einem Drehsturz sowohl nach rückwärts als auch nach vorne am Sohlenniederhalter zusätzlich auftretenden Reibungskräfte und dadurch eine konstante Auslösekraft für alle möglichen Drehsturzrichtungen gewährleistet.According to AT-A-368396 and AT-A-372616, for a front jaw, compensation of the additional frictional forces that occur in the case of a turning fall both backwards and forwards on the sole hold-down and thus a constant triggering force for all possible turning headsteps is guaranteed.

Allerdings war bei dieser Lösung nicht möglich, die Kompensation auch dann einzuleiten, wenn eine übermäßige Kraftbelastung nur in Skilängsrichtung erfolgte, da gegen eine solche Kraft die beiden seitlichen Winkelhebel zufolge ihrer Ausgestaltung gesperrt waren. Die Skischuhsohle lag nämlich in der Fahrtstellung an innerhalb der beiden als Achsen gestalteten Bolzen verlaufenden Bereichen der einzelnen Winkelhebel an, so daß diese durch die Skischuhsohle in Schließrichtung beaufschlagt wurden. Nur wenn eine Auslenkung des einen Winkelhebels eingeleitet wurde und die in Skilängsrichtung wirkende Kraftkomponente den Sperrwinkel bereits überschritten hat, wurde eine Kompensation ― beispielsweise bei einem Vorwärtsdrehsturz ― eingeleitet.However, with this solution it was not possible to initiate the compensation even if an excessive force was only applied in the longitudinal direction of the ski, since the two lateral angle levers were locked against such force due to their design. The ski shoe sole was in the driving position against the areas of the individual angle levers running within the two bolts designed as axes, so that these were acted upon by the ski shoe sole in the closing direction. Only when a deflection of one angle lever has been initiated and the force component acting in the longitudinal direction of the ski has already exceeded the locking angle, has compensation been initiated, for example in the event of a forward turn.

Durch die Erfindung soll eine Kompensation der zwischen der Skischuhsohle und den Winkelhebeln zusätzlich auftretenden Reibungskräfte auch bei ausschließlich in Skilängsrichtung wirkenden Kräften erfolgen.The invention is intended to compensate for the additional frictional forces that occur between the ski boot sole and the angle levers, even when the forces act exclusively in the longitudinal direction of the ski.

Gelöst wird die gestellte Aufgabe erfindungsgemäß durch die Merkmale des Anspruches 1. Durch die erfindungsgemäße Maßnahme erfolgt ein Trennen zwischen der Abstützung der Skischuhsohle an den Winkelhebeln und am Keilelement. Dadurch kann der Skischuh auch bei einer ausschließlich in Richtung der Skilängsachse wirkenden Kraft das Keilelement verschieben, welches seinerseits in bekannter Weise den Stützteil und über diesen den Bolzen in Höhenrichtung verschiebt, wodurch der Ausgleichshebel verschwenkt wird und gegen die Kraft der Feder die beiden Winkelhebel etwas auseinander drückt. Die Winkelhebel sind somit entlastet, wodurch eine Freigabe des Skischuhes erleichtert ist. Es erfolgt also, wie gewünscht, eine Kompensation auch jener Reibungskräfte, die bei einer ausschließlich in Skilängsrichtung wirkenden Überbelastung zwischen den Winkelhebeln und der Skischuhsohle zusätzlich auftreten. Hebt sich diese Überbelastung auf, ohne daß ein seitliches Auslösen erfolgte, so stellt sich das System in die Ausgangslage zurück. Die Skischuhsohle wird wieder auch von den Winkelhebeln gehalten.The object is achieved according to the invention by the features of claim 1. The measure according to the invention separates the support of the ski boot sole on the angle levers and on the wedge element. As a result, the ski boot can also move the wedge element when there is only a force acting in the direction of the longitudinal axis of the ski, which in turn moves the support part in a known manner and, via this, the bolt in the vertical direction, as a result of which the compensating lever is pivoted and the two angle levers somewhat apart against the force of the spring presses. The angle levers are thus relieved, which makes it easier to release the ski boot. Thus, as desired, there is also a compensation of those frictional forces which additionally occur between the angle levers and the ski boot sole in the event of an overload acting exclusively in the longitudinal direction of the ski. If this overload is removed without triggering from the side, the system returns to the starting position. The ski boot sole is also held by the angle levers.

Durch die Merkmale des Anspruches 2 wird eine Zentrierung des Skischuhs im Backen während der Fahrt auch dann sichergestellt, wenn zufolge einer Vorwärtsbewegung des Skischuhs sich die beiden Winkelhebel geöffnet und somit den Skischuh seitlich freigegeben haben.The features of claim 2 centering the ski boot ensured in the jaws while driving even if the two angle levers opened due to a forward movement of the ski boot and thus released the ski boot from the side.

Durch die im Anspruch 3 enthaltene erfindungsgemäße Maßnahme wird ein besonders kompakter Aufbau des Backens erzielt.The measure according to the invention contained in claim 3 achieves a particularly compact structure of the baking.

Durch die Merkmale des Anspruches 4 wird die Führung des Keilelementes ohne Verwendung von zusätzlichen Bauteilen gewährleistet.The features of claim 4 ensure the guidance of the wedge element without the use of additional components.

Besonders günstige Ausgestaltungen des Aufbaus und der Lagerung von Zugstange und Führungsbolzen ergeben sich durch die Merkmale des Anspruches 5.Particularly favorable configurations of the structure and the storage of the pull rod and guide pin result from the features of claim 5.

Eine einfache und verläßliche Verbindung des Führungsbolzens mit dem Keilelement sowie die Anordnung des Keilelementes relativ zum Schieber kennzeichnen die Merkmale des Anspruches 6.A simple and reliable connection of the guide pin to the wedge element and the arrangement of the wedge element relative to the slide characterize the features of claim 6.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung werden nun anhand der Zeichnung, die ein Ausführungsbeispiel darstellt, näher beschrieben. Hiebei zeigen: Fig. 1 und 2 den erfindungsgemäßen Vorderbacken in der Fahrtstellung, wobei Fig. 1 eine Seitenansicht im Schnitt und Fig. 2 ein Schnitt nach der Linie II-II in Fig. 1 ist, Fig. 3 und 4 den Vorderbacken in seiner Lage während einer auf ihn in Skilängsrichtung wirkenden Kraft, wobei Fig. 3 eine Seitenansicht im Schnitt und Fig. 4 ein Schnitt entlang der Linie IV-IV in Fig. 3 ist, Fig. 5 einen Ausgleichshebel in Schrägansicht, Fig. 6 ein Detail zu Fig. 2 und Fig. 7 ein Detail zu Fig. 1.Further features, advantages and details of the invention will now be described with reference to the drawing, which represents an embodiment. 1 and 2 show the toe piece according to the invention in the driving position, wherein FIG. 1 is a side view in section and FIG. 2 is a section along the line II-II in FIG. 1, FIGS. 3 and 4 are the toe piece in its Position during a force acting on it in the longitudinal direction of the ski, wherein FIG. 3 is a side view in section and FIG. 4 is a section along the line IV-IV in FIG. 3, FIG. 5 is a compensating lever in an oblique view, and FIG. 6 shows a detail FIGS. 2 and 7 show a detail of FIG. 1.

Auf einem Ski 1 ist ein Tragkörper 14 mit seinem als Tragplatte 14a ausgebildeten Bereich mittels Schrauben 2 befestigt. Der Tragkörper 14 kann auch auf einer Grundplatte, welche in an sich bekannter Weise auf einer skifesten Führungsschiene in der Längsrichtung des Ski verschiebbar und in verschiedenen Stellungen verrastbar ist, angeordnet sein. Der Tragkörper 14 trägt mittels als Achsen gestalteten Bolzen 16 an sich bekannte Winkelhebel 15, welche um diese schwenkbar gelagert sind. An seinem der Skispitze zugewandten Endbereich ist der Tragkörper 14 als eine im wesentlichen im rechten Winkel zur Oberseite des Ski 1 stehende Wand 14c ausgebildet, welche in ihrem oberen Bereich als eine Lagerhülse 14b ausgeführt ist, die mittels einer Lagerachse 17 eine schwenkbare Verbindung mit einem an Hand der Fig. 5 noch näher zu beschreibenden, als zweiarmiger Hebel gestalteten Ausgleichshebel 10 bildet.A support body 14 is fastened on a ski 1 with its area designed as a support plate 14a by means of screws 2. The support body 14 can also be arranged on a base plate, which can be displaced in a manner known per se on a ski-fixed guide rail in the longitudinal direction of the ski and can be locked in different positions. The support body 14 carries by means of pins 16 designed as axles known angle levers 15 which are pivotally mounted about them. At its end area facing the ski tip, the support body 14 is as a substantially perpendicular to the top of the ski 1 wall 14c formed, which is designed in its upper region as a bearing sleeve 14b, which by means of a bearing axis 17 a pivotable connection with a to be described in more detail with reference to FIG. 5, as Two-armed lever designed compensating lever 10.

Eine Feder 5 beaufschlagt mit ihrem einen Ende die Wand 14c des Tragkörpers 14, das andere Ende der Feder 5 ist in einem hülsenförmigen Widerlager 8 abgestützt. Die Vorspannung der Feder 5 ist in an sich bekannter Weise mittels einer Stellschraube 7 einstellbar; die jeweilige Federeinstellung ist an einer an sich bekannten, in Fig. 1 und 3 angedeuteten Anzeigevorrichtung 9 ablesbar.A spring 5 acts on one end of the wall 14c of the support body 14, the other end of the spring 5 is supported in a sleeve-shaped abutment 8. The bias of the spring 5 is adjustable in a manner known per se by means of an adjusting screw 7; the respective spring setting can be read off on a known display device 9 indicated in FIGS. 1 and 3.

Eine hülsenförmig gestaltete und von einem Führungsbolezn 6a durchsetzte Zugstange 6 ist koaxial zur Druckfeder 5 angeordnet, einerends in der Stellschraube 7 verankert und anderends an einem Schieber 13 befestigt, welcher an den Winkelhebeln 15 angreift. Die Zugstange 6 ist, in ihrer Längsrichtung betrachtet und wie an sich bekannt, in zwei Abschnitte unterteilt, von denen der eine Abschnitt mit einem Außengewinde versehen ist und in die Stellschraube 7 eingreift und der zweite Abschnitt mit einer glatten Außenfläche ausgebildet ist und in einer in der Wand 14c des Tragkörpers 14 festgelegten Führungsbüchse 28 längsverschiebbar geführt ist, wobei diese letztere gleichzeitig als Widerlager für die Feder 5 dient und wobei der Führungsbolzen 6a in der Zugstange 6 längsbeweglich verschiebbar gelagert ist. Der Vorderbacken ist zum Großteil von einem Gehäuse 25 umgeben.A sleeve-shaped pull rod 6, through which a guide bolt 6a extends, is arranged coaxially with the compression spring 5, anchored at one end in the adjusting screw 7 and fastened at the other end to a slide 13 which engages the angle levers 15. The pull rod 6 is, viewed in its longitudinal direction and, as is known per se, divided into two sections, of which one section is provided with an external thread and engages in the set screw 7 and the second section is designed with a smooth outer surface and in one the wall 14c of the support body 14 is guided in a longitudinally displaceable guide bushing 28, the latter also serving as an abutment for the spring 5 and the guide pin 6a being mounted in the pull rod 6 so as to be longitudinally displaceable. The toe piece is largely surrounded by a housing 25.

Ein Sohlenniederhalter 22 für die Skischuhsohle 11a eines Skischuhs 11 ist an einem Bolzen 21 drehbar gelagert, wobei am Bolzen 21 auch der Ausgleichshebel 10 mittels seines einen Armes, der als stegartiger Befestigungsteil 10b ausgebildet ist, angeordnet ist. Zwischen dem Sohlenniederhalter 22 und dem Befestigungsteil 10b sind ein elastisches Element 23 und ein Sicherungsring 24 angeordnet. Der obere Abschnitt 21a des Bolzens 21 ist mit einem Gewinde, welches in ein Gegengewinde des Sohlenniederhalters 22 eingreift, und mit einem Schraubenkopf versehen, wodurch der Sohlenniederhalter 22 an unterschiedlich hohe Skischuhsohlen 11a angepaßt werden kann. An den oberen Abschnitt 21a des Bolzens 21 schließt in Richtung zur Skioberseite hin ein kurzer mittlerer Abschnitt 21b mit glatter Oberfläche und an diesen ein unterer Abschnitt 21c mit einem kleineren Durchmesser an, wobei der untere Abschnitt 21c ebenfalls eine glatte Oberfläche aufweist. Der untere Abschnitt 21c des Bolzens 21 durchsetzt eine Bohrung 14d der Tragplatte 14a, die in diesem Bereich eine verkehrte U-förmige, nach oben abgesetzte Prägung 14e aufweist. Das untere Ende 21d des Bolzens 21 ist mit einem Nietkopf 21d versehen, dessen Durchmesser größer ist als der Durchmesser der Bohrung 14d.A sole hold-down device 22 for the ski shoe sole 11a of a ski shoe 11 is rotatably mounted on a bolt 21, the compensating lever 10 also being arranged on the bolt 21 by means of its one arm, which is designed as a web-like fastening part 10b. An elastic element 23 and a securing ring 24 are arranged between the sole hold-down device 22 and the fastening part 10b. The upper section 21a of the bolt 21 has a thread which engages in a counter thread of the sole hold-down device 22 and a screw head provided, whereby the sole hold-down device 22 can be adapted to different height ski shoe soles 11a. A short middle section 21b with a smooth surface adjoins the upper section 21a of the bolt 21 in the direction of the upper side of the ski, and a lower section 21c with a smaller diameter adjoins this, the lower section 21c likewise having a smooth surface. The lower section 21c of the bolt 21 passes through a bore 14d in the support plate 14a, which in this area has an upside-down U-shaped embossing 14e. The lower end 21d of the bolt 21 is provided with a rivet head 21d, the diameter of which is larger than the diameter of the bore 14d.

Wie im einzelnen aus der Fig. 5 erkennbar ist, ist der Ausgleichshebel 10, in Seitenansicht betrachtet, als ein zweiarmiger Hebel gestaltet, dessen einer, etwa horizontal verlaufender Arm durch den Befestigungsteil 10b gebildet ist und dessen anderer, im wesentlichen vertikal verlaufender Arm 10a zwei, etwa parallel zueinander verlaufende, jeweils aus zwei Teilabschnitten bestehende Armabschnitte 10c, 10e bzw. 10d, 10f aufweist. Dabei verlaufen die sich an den Befestigungsteil 10b anschließenden esten beiden Teilabschnitte 10c, 10d unter einem spitzen Winkel α zum Befestigungsteil 10b, wogegen die sich an die ersten beiden Teilabschnitte 10c, 10d anschließenden zweiten, frei stehenden Teilaschnite 10e, 10f zu diesen unter einem Winkel β abgekröpft sind. Die Größe der einzelnen Winkel α, β ist so gewählt, daß die beiden frei stehenden Teilabschnitte 10e, 10f, in der Fahrtstellung des Vorderbackens, im wesentlichen vertikal verlaufen, nicht näher bezeichnete Ausnehmungen der Wand 14c des Tragkörpers 14 durchsetzen und an je einem der Winkelhebel 15 anliegen. Die Lagerachse 17 durchsetzt die ersten beiden Teilabschnitte 10c, 10d der einzelnen Armabschnitte 10c, 10e bzw. 10d, 10f des Ausgleichshebels 10, welcher über die Lagerachse 17 an der Lagerhülse 14b des Tragkörpers 14 schwenkbar angelenkt ist.As can be seen in detail from FIG. 5, the compensating lever 10, viewed in side view, is designed as a two-armed lever, one of which, approximately horizontally extending arm, is formed by the fastening part 10b and the other, essentially vertically extending arm 10a, two , approximately mutually parallel arm sections 10c, 10e and 10d, 10f each consisting of two sections. The first two subsections 10c, 10d adjoining the fastening part 10b run at an acute angle α to the fastening part 10b, whereas the second, free-standing partial sections 10e, 10f adjoining the first two subsections 10c, 10d run at an angle β are cranked. The size of the individual angles .alpha., .Beta. Is selected such that the two free-standing sections 10e, 10f, in the driving position of the toe piece, run essentially vertically, through recesses of the wall 14c of the support body 14, not specified, and on each of the angle levers 15 concerns. The bearing axis 17 passes through the first two sections 10c, 10d of the individual arm sections 10c, 10e and 10d, 10f of the compensating lever 10, which is pivotably articulated on the bearing sleeve 14b of the support body 14 via the bearing axis 17.

Auf der Oberseite der Prägung 14e des Tragköropers 14 ist ein mit dem Führungsbolzen 6a der Zugstange 6 mittels seiner Vorderwand 27i verbundenes Keilelement 27 in noch näher zu beschreibenden Weise verschiebbar geführt. Das Keilelement 27 trägt an seiner dem Skischuh 11 zugewandten Seite zwei Achsbolzen 27a, an denen jeweils eine Stützrolle 27b angeordnet ist, an welchen ― bei in den Backen eingesetztem Skischuh 11 ― die Skischuhsohle 11a anliegt. Das Keilelement 27 weist zwischen seinen beiden Stützrollen 27b eine in Skilängsrichtung verlaufende Ausnehmung 27d auf, welche zur Aufnahme des Bolzens 21 vorgesehen ist und eine Längsverschiebung des Keilelementes 27 auf dem Tragkörper 14 relativ zum Bolzen 21 zuläßt. Dabei verlaufen die beiden Seitenwände 27e, 27f der Ausnehmung 27d vom Durchmesser des Bolzens 21 in Richtung zum Skischuh 11 hin jeweils in einer Ebene und im wesentlichen parallel zueinander, wodurch sich eine Führung für das Keilelement 27 am Bolzen 21 ergibt. Die beiden, an die Ausnehmung 27d anschließenden Teilbereiche 27g, 27h des Keilelementes 27 sind mit je einer unter einem spitzen Winkel γ von etwa 30° zur Skioberseite verlaufenden Schrägflächen 27c versehen (vgl. Fig. 7). Auf den Schrägflächen 27c des Keilelementes 27 liegen Schrägflächen 26a eines Stützteiles 26 auf. Der Stützteil 26 ist auf den unteren Abschnitt 21c des Bolzens 21 aufgeschoben und wird auf dem Bolzen 21 einerends durch das Keilelement 27 und anderends durch den flanschartig erweiterten Durchmesser des mittleren Abschnittes 21b des Bolzens 21 in Position gehalten. Dabei weist das Keilelement 27 an seiner den beiden Achsbolzen 27a abgewandten Seite die hochstehende Vorderwand 27i auf, in welcher der Führungsbolzen 6a verankert ist.On the top of the embossing 14e of the supporting body 14, a wedge element 27 connected to the guide pin 6a of the pull rod 6 by means of its front wall 27i is displaceably guided in a manner to be described in more detail. The wedge element 27 carries the ski boot 11 on it facing side two axle bolts 27a, on each of which a support roller 27b is arranged, against which - when the ski boot 11 is inserted in the jaws - the ski boot sole 11a bears. The wedge element 27 has between its two support rollers 27b a recess 27d which runs in the longitudinal direction of the ski and is provided for receiving the bolt 21 and permits longitudinal displacement of the wedge element 27 on the support body 14 relative to the bolt 21. The two side walls 27e, 27f of the recess 27d run from the diameter of the bolt 21 in the direction of the ski boot 11 in one plane and essentially parallel to one another, which results in a guide for the wedge element 27 on the bolt 21. The two partial areas 27g, 27h of the wedge element 27 adjoining the recess 27d are each provided with an inclined surface 27c running at an acute angle γ of approximately 30 ° to the top of the ski (cf. FIG. 7). On the inclined surfaces 27c of the wedge element 27 lie inclined surfaces 26a of a support part 26. The support part 26 is pushed onto the lower section 21c of the bolt 21 and is held in position on the bolt 21 on one side by the wedge element 27 and on the other by the flange-like enlarged diameter of the central section 21b of the bolt 21. The wedge element 27 has on its side facing away from the two axle bolts 27a the upstanding front wall 27i, in which the guide bolt 6a is anchored.

Der Bewegungsablauf bei einer rein horizontalen Auslösung ist wie folgt: Wird einer der Winkelhebel 15 horizontal belastet, so verschwenkt er um seinen zugehörigen Bolzen 16 nach außen. Während dieser Verschwenkbewegung verschiebt sich der am Winkelhebel 15 angreifende Schieber 13 mitsamt der Zugstange 6, der Verstellschraube 7 und dem Widerlager 8 in Skilängsrichtung zum Sohlenniederhalter 22 hin, die Feder 5 wird komprimiert.The sequence of movements in the case of a purely horizontal release is as follows: If one of the angle levers 15 is loaded horizontally, it pivots outward about its associated bolt 16. During this pivoting movement, the slider 13 acting on the angle lever 15, together with the pull rod 6, the adjusting screw 7 and the abutment 8, moves in the longitudinal direction of the ski towards the sole hold-down device 22, the spring 5 is compressed.

Erfolgt ein Rückwärtsdrehsturz, so wirkt der Skischuh 11 mit einer vertikal nach oben gerichteten Kraft auf den Sohlenniederhalter 22 ein. Durch diese Krafteinwirkung verschwenkt der mit dem Sohlenniederhalter 22 verbundene Ausgleichshebel 10 um die Lagerachse 17 gegen den Uhrzeigersinn, wobei die beiden freien Teilbschnitte 10e, 10f des Ausgleichshebels 10 die Winkelhebel 15 beaufschlagen, so daß diese um ihre Bolzen 16 nach außen verschwenken. Die Schwenkbewegung der Winkelhebel 15 hat eine Schieberbewegung zur Folge, wie sie bei einem horizontalen Auslösen auftritt, und die Feder 5 wird komprimiert. Die Bewegung des Sohlenniederhalters 22 bzw. der Schwenkbereich des Ausgleichshebels 10 ist durch das Anschlagen des Nietkopfes 21d des Bolzens 21 an der Prägung 14e der Tragplatte 14 begrenzt. Das elastische Element 23 gestattet die Schwenkbewegung des Ausgleichshebels 10 ohne den Sohlenniederhalter 22 aus seiner Lage relativ zur Skiboerseite zu bewegen.If there is a backward fall, the ski boot 11 acts on the hold-down device 22 with a vertically upward force. As a result of this force, the compensating lever 10 connected to the sole hold-down device 22 pivots counterclockwise about the bearing axis 17, the two free partial sections 10e, 10f of the Compensation lever 10 act on the angle lever 15 so that they pivot about their bolts 16 to the outside. The pivoting movement of the angle lever 15 results in a slide movement, as occurs when the triggering is horizontal, and the spring 5 is compressed. The movement of the sole holding-down device 22 or the pivoting range of the compensating lever 10 is limited by the riveting head 21d of the bolt 21 striking the embossing 14e of the support plate 14. The elastic element 23 allows the pivoting movement of the compensating lever 10 without moving the sole hold-down device 22 out of its position relative to the ski bottom side.

Bei einem Vorwärtsdrehsturz beaufschlagt die Skischuhsohle 11a sowohl einen der Winkelhebel 15 als auch das Keilelement 27 und verschiebt letzteres auf dem Tragkörper 14 in Richtung zur Skispitze hin. Über die miteinander zusammenwirkenden Schrägflächen 27a des Keilelementes 27 und 26a des Stützteiles 26 wird der Stützteil 26 und mit diesem der Bolzen 21 nach oben bewegt. Die Mitnahme des Bolzens 21 wird durch den mittleren Abschnitt 21b des Bolzens 21 gewährleistet. Dadurch verschwenkt der mit dem Sohlenniederhalter 22 verbundene Ausgleichshebel 10 um die Lagerachse 17 gegen den Uhrzeigersinn, die beiden Armabschnitte 10e, 10f des Ausgleichshebels 10 beaufschlagen die Winkelhebel 15, so daß diese um die Bolzen 16 nach außen verschwenken. Der über dem Ausgleichshebel 10 stattfindende Bewegungsablauf entspricht somit dem bei einem Rückwärtsdrehsturz auftretenden, wie er schon beschrieben wurde.In the event of a forward rotational fall, the ski boot sole 11a acts on one of the angle levers 15 and the wedge element 27 and moves the latter on the support body 14 in the direction of the ski tip. The supporting part 26, and with it the bolt 21, is moved upward over the interacting inclined surfaces 27a of the wedge element 27 and 26a of the supporting part 26. The entrainment of the bolt 21 is ensured by the central section 21b of the bolt 21. As a result, the compensating lever 10 connected to the sole hold-down device 22 pivots counterclockwise about the bearing axis 17, the two arm sections 10e, 10f of the compensating lever 10 act on the angle levers 15, so that they pivot about the bolts 16 to the outside. The sequence of movements taking place above the compensating lever 10 thus corresponds to that which occurs in the case of a reverse turning fall, as has already been described.

Es wird somit sowohl die bei einem Rückwärtsdrehsturz als auch bei einem Vorwärtsdrehsturz zwischen der Skischuhsohle 11a und den Winkelhebeln 15 auftretende zusätzliche Reibungskraft durch die erleichterte Freigabe der am Skischuh 11 seitlich anliegenden Winkelhebel 15 kompensiert, die Auslöserkraft bleibt somit konstant, d.h. sie entspricht derjenigen eines rein horizontalen Auslösens. Diese Maßnahmen sind aus dem Stammpatent für sich bekannt und werden, wie beschrieben, auch bei der vorliegenden Lösung verwirklicht.Thus, the additional frictional force occurring between the ski boot sole 11a and the angle levers 15 in the event of a reverse turn and a forward turn fall is compensated for by the easier release of the angle levers 15 lying on the side of the ski boot 11, the triggering force thus remains constant, ie it corresponds to that of a pure one horizontal release. These measures are known per se from the master patent and, as described, are also implemented in the present solution.

Zufolge der erfindungsgemäßen Ausgestaltung wird gewährleistet, daß eine Kompensation auch bei einer reinen Vorwärtsschiebebewegung des Skischuhs 11, somit auch bei einem reinen Vorwärtssturz, eingeleitet wird, da ein Verschieben des Keilelementes 27 ein Verschwenken der beiden Winkelhebel 15 in der bei einem Vorwärtsdrehsturz beschriebenen Weise auch dann zur Folge hat, wenn vom Skischuh 11 keiner der beiden Winkelhebel 15 beaufschlagt wird, vgl. Fig. 3 und 4. Dabei wird der Skischuh 11 nur durch die beiden Stützrollen 27b des Keilelementes 27 zentriert gehalten, wie dies aus der Fig. 4 erkennbar ist. Aus Fig. 6 sind der Achsabstand a der beiden Achsbolzen 27a und die Sehnenhöhe h erkennbar. Der Achsabstand a beträgt 30-36 mm, die Sehnenhöhe h, d.h. der Abstand zwischen dem Bogenabschnitt der Skischuhsohle 11a und der schuhseitigen Tangente der beiden Stützrollen 27b, gemessen in der Längsachse des Backens, 1,5-2,5 mm.As a result of the configuration according to the invention, it is ensured that compensation is initiated even with a pure forward sliding movement of the ski boot 11, and thus also with a pure forward fall, since a displacement of the wedge element 27 also a pivoting of the two angle levers 15 in the manner described in a forward fall fall has the consequence if neither of the two angle levers 15 is acted upon by the ski boot 11, cf. 3 and 4. The ski boot 11 is held centered only by the two support rollers 27b of the wedge element 27, as can be seen from FIG. 4. 6 shows the center distance a of the two axle bolts 27a and the chord height h . The center distance a is 30-36 mm, the chord height h , ie the distance between the arc section of the ski shoe sole 11a and the shoe-side tangent of the two support rollers 27b, measured in the longitudinal axis of the jaw, 1.5-2.5 mm.

Bei einem erfindungsgemäßen Vorderbacken ist daher bei allen möglichen Auslöserichtungen eine konstante Auslösekraft vorhanden. Die zwischen der Skischuhsohle 11a und dem Sohlenniederhalter 22 bzw. den Winkelhebeln 15 auftretenden Reibungskräfte sind ohne Einfluß auf die Auslösekräfte.In a toe piece according to the invention, a constant release force is therefore present in all possible release directions. The frictional forces occurring between the ski boot sole 11a and the sole hold-down 22 or the angle levers 15 have no influence on the triggering forces.

Die miteinander zusammenwirkenden Schrägflächen 26a, 27c des Stützteiles 26 und des Keilelementes 27 sind vorteilhafter Weise mit einem die Gleitreibung zwischen diesen Teilen vermindernden Material beschichtet. Auch die zwischen der Unterseite 27a des Keilelementes 27 und der Oberseite des Tragkörpers 14 auftretende Reibung kann dadurch vermindert werden, daß diese Bauteile mit einem reibungsvermindernden Material beschichtet bzw. ausgelegt sind. Die Neigung der Schrägflächen 26a,27c relativ zur Skioberseite bestimmt das Ausmaß der auf den Ausgleichshebel 10 und von diesem auf die Winkelhebel 15 übertragenen, in Skilängsrichtung wirkenden Kraft. Diesbezüglich ist dem Konstrukteur, je nach dem weiteren Aufbau des Backens, ein gewisser Spielraum gegeben.The cooperating inclined surfaces 26a, 27c of the support part 26 and the wedge element 27 are advantageously coated with a material which reduces the sliding friction between these parts. The friction occurring between the underside 27a of the wedge element 27 and the upper side of the supporting body 14 can also be reduced in that these components are coated or designed with a friction-reducing material. The inclination of the inclined surfaces 26a, 27c relative to the upper side of the ski determines the extent of the force which is transmitted in the longitudinal direction of the ski to the compensating lever 10 and from this to the angle lever 15. In this regard, the designer is given a certain amount of leeway depending on the further structure of the jaw.

Die Erfindung ist nicht auf das dargestellte Ausführungsbeispiel, insbesondere nicht auf den beschriebenen Vorderbacken, eingeschränkt. Der Ausgleichshebel und das mit dem Stützteil zusammenwirkende Keilelement können an beliebigen, Winkelhebel aufweisenden Vorderbacken angeordnet werden.The invention is not limited to the illustrated embodiment, in particular not limited to the toes described. The compensating lever and the wedge element cooperating with the support part can be arranged on any front jaws having angle levers.

Es sind verschiedene Abwandlungen denkbar, ohne den Rahmen des Schutzumfanges zu verlassen. Das elastische Element kann auch im Bereich zwischen dem Ausgleichshebel und jenem Bereich des Tragkörpers angeordnet sein, an welchem die Bolzen der Winkelhebel gelagert sind. Falls der Backen an einer Führungsschiene angeordnet ist, erübrigt sich die Ausbildung einer Prägung an der Tragplatte, da zwischen dieser und der Führungsschiene genügend Raum für die vertikale Bewegung des Anschlages des Bolzens vorhanden ist. Zur Begrenzung der vertikalen Bewegung des Bolzens bzw. des Sohlenniederhalters könnte auch ein Anschlag, beispielsweise am Gehäuse, vorgesehen sein.Various modifications are conceivable without leaving the scope of the scope of protection. The elastic element can also be arranged in the area between the compensating lever and that area of the supporting body on which the bolts of the angle levers are mounted. If the jaw is arranged on a guide rail, the formation of an embossing on the support plate is unnecessary, since there is sufficient space between the latter and the guide rail for the vertical movement of the stop of the bolt. A stop, for example on the housing, could also be provided to limit the vertical movement of the bolt or the sole hold-down device.

Claims (6)

1. A jaw assembly, particularly front jaw assembly, for a safety ski binding, provided with a mounting body (14) and adapted to be releasably fixed on the top side of a ski (1) by means of said mounting body (14), and comprising a sole clamp (22) mounted on a vertical pin (21) disposed in said mounting body, and two crank levers (15) mounted for swiveling about respective axle pins (16) disposed on said mounting body (14), a pull rod (6) being provided with one of its end portions extending through said mounting body (14) and having a stop member (13) fixedly connected thereto in engagement with said two crank levers (15), and its other end portion provided with male screw threads in engagement with an adjustment nut (7) connected to a sleeve-shaped counterstop (8) supporting one end of a spring (5) for adjustment of its biasing force by means of said adjustment nut (7), the other end of said spring (5) being supported on said mounting body (14), said crank levers (15) being adapted to swivel laterally outwards against the force of said spring (5), and said sole clamp (22) being adapted to be upards in response to a vertical force acting thereon in the direction away form the ski's top side (i.e. upwards), and against the force of said spring (5) acting thereon by the intermediary of a two-armed transmission lever (10) mounted on said mounting body (14) for pivoting about an axle pin (17) provided thereon, and having at least one (10a) of its arms provided with two preferably parallel arm sections (10c, 10e; 10d, 10f) each of which is in engagement, either directly or by the intermediary of an coupling lever, with a respective one of said crank levers (15) at least in the skiing position of the jaw assembly, the other arm (10b) of said transmission lever (10) being resiliently biased into engagement with said sole clamp (22) and articulated to said vertical pin (21), the latter being guided for vertical sliding displacement relative to said mounting body (14), the upwards displacement stroke of said sole clamp (22) being limited by a stop combination (14e, 21d), a wedge element (27) being guided on said mounting body (14) for sliding displacement in the longitudinal direction of the ski (1), said wedge element (27) being in contact with the sole (11a) of a ski boot (11) when inserted into the jaw assembly, and provided with at least one inclined surface (27c) cooperating with at least one inclined surface (26a) of a support member (26) secured in position on said vertical pin (21) carrying said sole clamp (22), characterized in that at its side facing said ski boot (11), said wedge element (27) carries two axle pins (27a) spaced from one another by a distance (a) in the transverse direction of the ski and mounting respective support rollers (27b) on which in the skiing position of the jaw assembly the sole (11a) of said ski boot (11) takes support independently of said crank levers (15), and in that said wedge element (27) is connected to a guide pin (6a) slidably mounted in an axial bore of said pull rod (6), and in that said wedge element (27) extends between said two crank levers (15) in the longitudinal direction of the jaw assembly.
2. A jaw assembly according to claim 1, characterized in that the center spacing (a) of said two axle pins (27a) is 30 to 36 mm, and that ― when a ski boot (11) is inserted in the jaw assembly ― the chord height (h) ― i.e. the distance between a tangent applied to the front end of the sole and extending transversely of the longitudinal direction of the ski and a straight line passing through the contact points of said two support rollers (27b) on said ski boot sole (11a) ― is 1.5 to 2.5 mm (fig. 6).
3. A jaw assembly according to claim 1 or 2, characterized in that between said two support rollers (27b) said wedge element (27) is formed with a cutout portion (27d) extending in the longitudinal direction of the jaw assembly and opening in the direction towards said ski boot sole (11a) for receiving said vertical pin (21) therein.
4. A jaw assembly according to claim 3, characterized in that at its side facing away from said ski boot (11), said cutout portion (27d) has a rounded section preferably conforming to the outer surface of said vertical pin (21), and that the two sidewalls (27e, 27f) of said cutout portion (27d) departing from said rounded section extend in a common plane and substantially parallel to one another, said sidewalls (27e, 27f) acting to guide said wedge element (27) on the outer surface of said vertical pin (21) in the longitudinal direction of the ski.
5. A jaw assembly according to claim 1, characterized in that a guide pin (6a) extends through at least a section of said pull rod (6) adjacent said mounting body (14), said guide pin (6a) being secured to said wedge element (27) and longitudinally slidable within said pull rod (6).
6. A jaw assembly according to claim 1 or 5, characterized in that on its side facing away from said two axle pins (27a), said wedge element (27) is formed with an upstanding front wall (27i) having said guide pin (6a) secured thereto, said front wall (27i) being longitudinally spaced from said stop member (13) in the skiing position by a distance (b) permitting said crank levers (15) to be freely and individually swivelled.
EP88910007A 1987-11-12 1988-10-31 Jaw, in particular front jaw Expired - Lifetime EP0344249B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0299787A AT388678B (en) 1982-04-29 1987-11-12 BAKING, ESPECIALLY A FRONT BAKE
AT2997/87 1987-11-12

Publications (2)

Publication Number Publication Date
EP0344249A1 EP0344249A1 (en) 1989-12-06
EP0344249B1 true EP0344249B1 (en) 1991-11-13

Family

ID=3543707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88910007A Expired - Lifetime EP0344249B1 (en) 1987-11-12 1988-10-31 Jaw, in particular front jaw

Country Status (6)

Country Link
US (1) US5050903A (en)
EP (1) EP0344249B1 (en)
JP (1) JPH02502164A (en)
AT (1) AT388678B (en)
DE (1) DE3866239D1 (en)
WO (1) WO1989004195A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238657A1 (en) * 1992-11-16 1994-05-19 Marker Deutschland Gmbh Triggering ski binding
CH693129A5 (en) * 1998-11-16 2003-03-14 Look Fixations Sa A safety ski binding.
FR2966747B1 (en) * 2010-10-29 2013-01-11 Salomon Sas SECURITY FASTENING FOR THE PRACTICE OF SKIING.
DE102013009762A1 (en) * 2013-06-10 2014-12-11 Andreas Allmann Sicherheitsskibindungssystem
CN108127613B (en) * 2017-12-29 2023-06-23 上海君屹工业自动化股份有限公司 Reinforcing plate installation device
US11154765B1 (en) 2020-07-28 2021-10-26 Stop River Development LLC Ski binding with pyrotechnic fastener release
CN116234470A (en) * 2020-07-28 2023-06-06 斯托普里弗发展有限责任公司 Ski binding with pyrotechnic fastener release

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT321170B (en) * 1972-12-18 1975-03-25 Smolka & Co Wiener Metall Ski binding part
FR2464727A1 (en) * 1979-09-14 1981-03-20 Look Sa STOP FRONT OF SKI FIXING
AT369284B (en) * 1980-11-04 1982-12-27 Tyrolia Freizeitgeraete BAKING, ESPECIALLY FRONT BAKING
AT372616B (en) * 1982-04-29 1983-10-25 Tyrolia Freizeitgeraete BAKING, ESPECIALLY FRONT BAKING
FR2548031B1 (en) * 1983-06-30 1986-06-06 Salomon Sa SECURITY FIXING FOR SKI
DE3337993A1 (en) * 1983-10-19 1985-05-09 Geze Gmbh, 7250 Leonberg SAFETY PRE-BAKING A SKI BINDING
US4735435A (en) * 1986-06-05 1988-04-05 Marker Deutschland Gmbh Front-piece for a safety ski-binding

Also Published As

Publication number Publication date
JPH02502164A (en) 1990-07-19
AT388678B (en) 1989-08-10
DE3866239D1 (en) 1991-12-19
EP0344249A1 (en) 1989-12-06
ATA299787A (en) 1989-01-15
US5050903A (en) 1991-09-24
WO1989004195A1 (en) 1989-05-18

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