EP0200044B1 - Frontpiece for safety skibindings - Google Patents

Frontpiece for safety skibindings Download PDF

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Publication number
EP0200044B1
EP0200044B1 EP86104851A EP86104851A EP0200044B1 EP 0200044 B1 EP0200044 B1 EP 0200044B1 EP 86104851 A EP86104851 A EP 86104851A EP 86104851 A EP86104851 A EP 86104851A EP 0200044 B1 EP0200044 B1 EP 0200044B1
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EP
European Patent Office
Prior art keywords
lever
side holding
support member
support
holding means
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
EP86104851A
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German (de)
French (fr)
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EP0200044A2 (en
EP0200044A3 (en
Inventor
Gerhard Sedlmair
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.)
Marker Deutschland GmbH
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Marker Deutschland GmbH
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Filing date
Publication date
Application filed by Marker Deutschland GmbH filed Critical Marker Deutschland GmbH
Priority to AT86104851T priority Critical patent/ATE54422T1/en
Publication of EP0200044A2 publication Critical patent/EP0200044A2/en
Publication of EP0200044A3 publication Critical patent/EP0200044A3/en
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Publication of EP0200044B1 publication Critical patent/EP0200044B1/en
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00Ski bindings
    • A63C9/08Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08557Details of the release mechanism
    • A63C9/08571Details of the release mechanism using axis and lever
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00Ski bindings
    • A63C9/08Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08507Ski 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
    • A63C9/08521Ski 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

Definitions

  • the present invention relates to front jaws for safety ski bindings according to the preamble of the main claim.
  • Such front jaws are already known from various publications (e.g. DE-AS-1809889 and 1910808), but have so far not been used in practice. Compared to other known toes of the genus on the market, they have the advantage that their side jaws follow a pivoting movement of the ski shoe in the elastic region of the front jaw, so that friction between the side jaws and the sole of the shoe is avoided in this area. As a result, there is only a low sensitivity to the pressure exerted by the heel holding device and a relatively good resetting behavior.
  • each side jaw is assigned a locking part designed as a locking pin and that the lever on the extension of the side jaw is a ratchet lever which engages behind the locking pin and for which a base plate-fixed stop is provided.
  • the locking part is a lever mounted axially parallel to the side jaws centrally on the support member and that a locking plate-fixed stop is provided for this locking lever on both sides of the plane of symmetry of the jaws.
  • each support lever can carry an axially parallel guide pin and a link can be provided in the support member for each guide pin, which prevents the support lever from reaching the extended position and elongation of the side jaw when it is pivoted.
  • the support levers are expediently held in their normal position so that good operational safety is present even in rough driving conditions.
  • the support levers are held in their normal position by a cam disk, which can be displaced in the longitudinal direction of the jaw against the force of a spring.
  • a cam disk which can be displaced in the longitudinal direction of the jaw against the force of a spring.
  • the housing 1 to 4 has a housing 1 which consists of a base part 2 which can be fastened to a ski in the usual way and a cover part 3 held thereon.
  • the levers 6, 7 of a four-bar linkage, the coupling of which is designated 8, are mounted on two vertical axes 4, 5 provided in the housing.
  • the coupling serves as a support member for two side jaws 9, 10, which are each mounted on one of the pivot pins 11 and 12 of the coupling on the levers.
  • the coupling is formed from two sheet metal stampings 81, 82 shown in section in FIG. 1, which are mounted parallel to one another at a distance on the pivot pins 11, 12.
  • Fig. 3 shows the elevation of the sheet metal stamping 82.
  • a pin 13 is mounted axially parallel to the pivot pins 11, 12.
  • This carries a locking lever 14, a guide bush 15 with a flange 16 and a locking roller 17.
  • This locking roller engages in the normal operating state of the toe in a locking recess which consists of two mirror-like intersecting levers 18, 19.
  • Each lever is mounted on an axis 20 and 21, which are provided in the housing 1 parallel to the axes 4 and 5. Both levers stand with the interposition of an axially parallel pin 22 and a pressure piece 23 under the influence of a helical compression spring 24, which in turn is supported on the housing 1 with the interposition of a nut 25 and an adjusting screw 26 (see in particular FIG. 3).
  • the side jaws 9, 10 are extended beyond the pivot pins 11, 12.
  • a lever 27 or 28 is supported on each of these extensions, by means of which the side jaws are supported on the locking lever 14.
  • the locking lever has two gradations 29, 30.
  • a stop 41 or 42 fixed to the housing is provided for the locking lever on both sides of the plane of symmetry of the jaw. In the present embodiment, these stops are on the axles 20 and 21 for the levers 18, 19 forming the locking recess.
  • Each of the levers 27, 28 supported on the locking lever 14 also has an axially parallel guide pin 31 or 32.
  • a backdrop 33 or 34 is provided in the sheet metal punch 81, the purpose of which is described in detail below.
  • a coiled spiral spring 35 is mounted on the pin 13, which engages with the free ends 36 behind the guide pins 31, 32 and thus resiliently holds them in their normal position according to FIG. 2.
  • a cam disk 37 which is mounted on the pin 22 and is therefore loaded by the helical compression spring 24.
  • the guide pins 31, 32 thus protrude from the levers 27, 28 supporting them both upwards and downwards, the upper ends of each projecting into a link 33 or 34 of the sheet-metal punched piece 81, while the lower ends protrude of the cam disk 37 extend into the vicinity of the flange 16 of the guide bush 15.
  • the levers 6, 7 of the four-bar linkage are formed from substantially U-shaped sheet metal stampings, which are shown in FIGS. 2 to 4 in section through the webs.
  • Each leg has an incision through which the axis 20 or 21 can extend, which are arranged fixed to the housing and each carry a lever 18 or 19, which together form the locking trough for the locking roller 17.
  • the individual parts of the toe take up their position shown in FIGS. 1 to 3. If a force is now transmitted from a shoe (not shown) to one of the side jaws 9 or 10, which exceeds the pretension of the helical compression spring 24, the four-bar linkage is pivoted about the axes 4, 5, but the side jaws 9, 10 have their position relative to the Do not change coupling 8. When the force decreases, the four-bar linkage returns to its normal position under the influence of the helical compression spring 24.
  • the coupling 8 is moved to the side so far that the locking lever 14 comes to rest against the corresponding stop 42, the coupling will move a little further due to the fact that it opposes it rotating locking lever by its corresponding support 30 unlocks the associated support lever 28, so that the side jaw 10 can pivot into its release position according to FIG. 4, whereby a lateral release of the ski boot is possible.
  • the pivoting of the side jaw takes place against the relatively low force of the spring 35 which, after the shoe is released from the front jaw, causes the side jaw to be returned to the starting position.
  • the four-bar linkage also returns to its normal position under the influence of the spring 24.
  • the cam disk 37 is also shifted to the right with respect to the illustration, so that its active side lies again in front of the guide pins 31, 32, as shown in FIG. 2.
  • the scenes 33, 34 in the sheet metal punch 81 are dimensioned such that when the side jaws 9, 10 are pivoted, the articulation point of the support levers 27, 28 on these jaws does not reach the connecting straight line between a pivot pin 11 or 12 and the corresponding guide pin 31 or 32 can (see Fig. 4). This results in a safe resetting of the side jaw, be it under the influence of the spring 35 or the cam disk 37. With the resetting of the support lever, the locking lever 14 is also reset, so that no special retaining spring or return spring is necessary for this.
  • the toe piece shown in FIGS. 5 to 7 differs only slightly from the toe piece described above.
  • the same reference numerals are therefore used for the same parts. In this respect, the description of the structure of the toe piece is not repeated.
  • a coupling 44 which in turn is formed from two sheet-metal stampings, which are mounted parallel to one another at a distance on the pivot pins 11, 12.
  • a side jaw 45 or 46 is in turn mounted on each of these pivot pins, which carry a lever 49 or 50 designed as a ratchet lever on their extension 47 or 48 provided according to the invention.
  • two locking pins 51, 52 are mounted parallel to the pivot pins 11 and 12, which are normally engaged behind by a ratchet lever 49 or 50, thereby preventing the side jaws 45, 46 from swinging out.
  • the ratchet levers are each under the influence of a winding bending arm the 53 held in its locked position.
  • Each side jaw is still under the influence of a return spring 54 or 55, which is also designed as a spiral spiral spring and whose support leg is hooked on the coupling 44.
  • each pawl lever 49, 50 merges into a sliding surface 56 or 57, which are provided for interaction with a ski-fixed stop.
  • the axles 20, 21 serve directly as ski-fixed stops in this construction.
  • Figure 5 shows the front jaw in its normal position.
  • the four-bar linkage is pivoted about the axes 4, 5 at the moment when a force exceeding the pretension of the helical compression spring 24 is applied to one of the side jaws 45 or 46. If this force application is of an appropriate size and duration, it takes place on
  • the ratchet lever here
  • the ratchet lever 49 strikes the axis 20 with its sliding surface 56, which leads to the ratchet lever being unhooked from the locking pin 51.
  • the side jaw 45 is released and can pivot into its release position in accordance with FIG. 7, which enables the ski boot to be released laterally.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Lock And Its Accessories (AREA)
  • Clamps And Clips (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Milling Processes (AREA)

Abstract

A toe piece for safety ski-bindings, which toe piece can pivot outwardly in a sideways direction against a biasing force if excessive lateral forces occur. A supporting member (8) is connected to two side holding members (9,10) adapted to support the sole of the boot in lateral and frontal directions. The support member (8) forms the coupling means of a linkage quadrangle which can pivot laterally. The side holding members (9,10) extend beyond the point where they are mounted to the support member. Each side holding member is releasably locked by means of a lever (27,28) mounted on the extensions thereof. A locking member (14) cooperative with the levers is adapted to release the appropriate side holding member when the linkage moves beyond a predetermined distance from center.

Description

Die vorliegende Erfindung bezieht sich auf Vorderbacken für Sicherheits-Skibindungen gemäß dem Oberbegriff des Hauptanspruchs.The present invention relates to front jaws for safety ski bindings according to the preamble of the main claim.

Derartige Vorderbacken sind schon aus verschiedenen Druckschriften (z.B. DE-AS-1809889 und 1910808) bekannt, haben bisher jedoch keinen Eingang in die Praxis gefunden. Gegenüber weiter bekannten auf dem Markt befindlichen gattungsfremden Vorderbacken weisen sie den Vorteil auf, daß ihre Seitenbacken im elastischen Bereich des Vorderbackens einer Schwenkbewegung des Skischuhs folgen, so daß eine Reibung zwischen den Seitenbacken und der Schuhsohle in diesem Bereich vermieden ist. Dadurch ist weiter eine nur geringe Empfindlichkeit auf den von der Fersenhaltevorrichtung ausgeübten Andruck gegeben sowie ein relativ gutes Rückstellverhalten.Such front jaws are already known from various publications (e.g. DE-AS-1809889 and 1910808), but have so far not been used in practice. Compared to other known toes of the genus on the market, they have the advantage that their side jaws follow a pivoting movement of the ski shoe in the elastic region of the front jaw, so that friction between the side jaws and the sole of the shoe is avoided in this area. As a result, there is only a low sensitivity to the pressure exerted by the heel holding device and a relatively good resetting behavior.

Bei den bekannten gattungsgemäßen Vorderbacken findet jedoch im elastischen Bereich eine Relativbewegung zwischen den Seitenbacken und dem Gelenkviereck statt, die auch Reibungen bewirkt mit den bekannten Nachteilen.In the known generic front jaws, however, there is a relative movement between the side jaws and the four-bar linkage in the elastic range, which also causes friction with the known disadvantages.

Es ist daher Zweck der vorliegenden Erfindung, die gattungsgemäßen Vorderbacken so weiterzubilden und zu gestalten, daß die erwähnte Reibung vermieden und somit das Rückstellverhalten des Vorderbackens noch verbessert wird.It is therefore the purpose of the present invention to further develop and design the generic front jaws in such a way that the abovementioned friction is avoided and the restoring behavior of the front jaw is further improved.

Erfindungsgemäß ist dies durch die kennzeichnenden Merkmale des Hauptanspruchs erreicht. Damit findet also während des Schwenkens des Stützgliedes bei eingesetztem Skischuh zwischen dem Stützglied und den Seitenbacken keine Relativbewegung mehr statt. Eine konstruktive Vereinfachung des Vorderbackens gegenüber den bekannten Vorderbacken läßt sich erfindungsgemäß noch dadurch erreichen, daß die Anlenkzapfen des Stützgliedes an den Hebeln des Gelenkvierecks gleichzeitig auch die Seitenbacken tragen.According to the invention this is achieved by the characterizing features of the main claim. Thus, during the pivoting of the support member when the ski boot is inserted, there is no longer any relative movement between the support member and the side jaws. A design simplification of the front jaw compared to the known front jaws can also be achieved according to the invention in that the pivot pins of the support member on the levers of the four-bar linkage also carry the side jaws at the same time.

In konstruktiver Ausgestaltung der Erfindung ist vorgesehen, daß jeder Seitenbacke ein als Sperrstift ausgebildeter Sperrteil zugeordnet ist und daß der Hebel an der Verlängerung der Seitenbacke ein Klinkenhebel ist, der federnd den Sperrstift hintergreift und für den ein grundplattenfester Anschlag vorgesehen ist.In a constructive embodiment of the invention it is provided that each side jaw is assigned a locking part designed as a locking pin and that the lever on the extension of the side jaw is a ratchet lever which engages behind the locking pin and for which a base plate-fixed stop is provided.

Hierbei hat es sich als zweckmäßig erwiesen, daß für jeden Klinkenhebel eine gewundene Biegefeder vorgesehen und an der Verlängerung aufgehängt ist.It has proven to be useful that a spiral spiral spring is provided for each ratchet lever and is suspended from the extension.

Bei einer Konstruktionsvariante ist dagegen vorgesehen, daß der Sperrteil ein achsparallel zu den Seitenbacken zentral am Stützglied gelagerter Hebel ist und daß für diesen Sperrhebel beiderseits der Symmetrieebene des Backens jeweils ein grundplattenfester Anschlag vorgesehen ist.In one construction variant, on the other hand, it is provided that the locking part is a lever mounted axially parallel to the side jaws centrally on the support member and that a locking plate-fixed stop is provided for this locking lever on both sides of the plane of symmetry of the jaws.

Vorzugsweise ist dabei der Hebel an der Verlängerung der Seitenbacke ein sich am Sperrhebel abstützender Stützhebel. In diesem Fall kann jeder Stützhebel einen achsparallelen Führungsstift tragen und im Stützglied für jeden Führungsstift eine Kulisse vorgesehen sein, die das Erreichen der Strecklage von Stützhebel und Velängerung der Seitenbacke bei deren Schwenken verhindert.The lever on the extension of the side jaw is preferably a support lever supported on the locking lever. In this case, each support lever can carry an axially parallel guide pin and a link can be provided in the support member for each guide pin, which prevents the support lever from reaching the extended position and elongation of the side jaw when it is pivoted.

Zweckmäßig sind die Stützhebel federnd in ihrer Normallage gehalten, so daß auch im rauhen Fahrbetrieb eine gute Betriebssicherheit vorhanden ist.The support levers are expediently held in their normal position so that good operational safety is present even in rough driving conditions.

In konstruktiver Ausgestaltung dieses Erfindungsgedankens sind die Stützhebel von einer Nockenscheibe in ihrer Normalstellung gehalten, die entgegen der Kraft einer Feder in Längsrichtung des Backens verschiebbar ist. Hierbei ist eine besonders einfache Ausführung dadurch erreicht, daß die Feder der Rasteinrichtung auch die Nokkenscheibe belastet.In a constructive embodiment of this inventive concept, the support levers are held in their normal position by a cam disk, which can be displaced in the longitudinal direction of the jaw against the force of a spring. A particularly simple embodiment is achieved in that the spring of the latching device also loads the cam disk.

Anhand der beiliegenden Zeichnungen sind im folgenden Ausführungsbeispiele des erfindungsgemäßen Vorderbackens ausführlich beschrieben. Es zeigen:

  • Fig. 1 einen mittleren Längsschnitt durch einen Vorderbacken gemäß einer ersten Ausführung,
  • Fig. 2 einen Schnitt durch den Vorderbacken nach der Linie A-B-C-D in Fig. 1,
  • Fig. 3 einen Schnitt nach der Linie E-F-G-D in Fig. 1,
  • Fig. 4 einen der Fig. 2 entsprechenden Schnitt, jedoch in einer der Auslösestellung des Vorderbackens,
  • Fig. 5 eine konstruktive Abwandlung des Vorderbackens im horizontalen Schnitt entsprechend Fig. 2,
  • Fig. 6 einen der Fig. 5 entsprechenden Schnitt, jedoch in der Momentanstellung am Ende des Elastizitätsweges und
  • Fig. 7 einen den Fig. 5 und 6 entsprechenden Schnitt, jedoch in einer der Auslösestellungen des Vorderbackens.
Exemplary embodiments of the front jaw according to the invention are described in detail below with reference to the accompanying drawings. Show it:
  • 1 shows a central longitudinal section through a toe piece according to a first embodiment,
  • 2 shows a section through the front jaw along the line ABCD in FIG. 1,
  • 3 shows a section along the line EFGD in FIG. 1,
  • 4 shows a section corresponding to FIG. 2, but in one of the release positions of the toe piece,
  • 5 shows a constructive modification of the toe piece in horizontal section corresponding to FIG. 2,
  • Fig. 6 is a section corresponding to FIG. 5, but in the instantaneous position at the end of the elastic path and
  • 7 shows a section corresponding to FIGS. 5 and 6, but in one of the release positions of the toe piece.

Der in den Fig. 1 bis 4 dargestellte Vorderbakken besitzt ein Gehäuse 1, das aus einem in üblicher Weise auf einem Ski befestigbaren Grundteil 2 und einem an diesem gehaltenen Abdeckteil 3 besteht. Auf zwei im Gehäuse vorgesehenen vertikalen Achsen 4, 5 sind die Hebel 6, 7 eines Gelenkvierecks gelagert, dessen Koppel mit 8 bezeichnet ist. Die Koppel dient als Stützglied für zwei Seitenbacken 9, 10, die auf jeweils einem der Anlenkzapfen 11 bzw. 12 der Koppel an den Hebeln gelagert sind.1 to 4 has a housing 1 which consists of a base part 2 which can be fastened to a ski in the usual way and a cover part 3 held thereon. The levers 6, 7 of a four-bar linkage, the coupling of which is designated 8, are mounted on two vertical axes 4, 5 provided in the housing. The coupling serves as a support member for two side jaws 9, 10, which are each mounted on one of the pivot pins 11 and 12 of the coupling on the levers.

Die Koppel ist aus zwei in Fig. 1 im Schnitt dargestellten Blechstanzstücken 81, 82 gebildet, die parallel zueinander mit Abstand auf den Anlenkzapfen 11, 12 gelagert sind. Fig. 3 läßt den Aufriß des Blechstanzstücks 82 erkennen.The coupling is formed from two sheet metal stampings 81, 82 shown in section in FIG. 1, which are mounted parallel to one another at a distance on the pivot pins 11, 12. Fig. 3 shows the elevation of the sheet metal stamping 82.

In den die Koppel bildenden Blechstanzstücken 81, 82 ist ein Zapfen 13 achsparallel zu den Anlenkzapfen 11, 12 gelagert. Dieser trägt einen Sperrhebel 14, eine Führungsbuchse 15 mit einem Flansch 16 sowie eine Rastrolle 17. Diese Rastrolle greift im normalen Betriebszustand des Vorderbackens in eine Rastmulde ein, die aus zwei spiegelgleichen sich kreuzenden Hebeln 18, 19 besteht. Jeder Hebel ist an einer Achse 20 bzw. 21 gelagert, die parallel zu den Achsen 4 und 5 im Gehäuse 1 vorgesehen sind. Beide Hebel stehen unter Zwischenschaltung eines achsparallelen Stiftes 22 und eines Druckstücks 23 unter dem Einfluß einer Schraubendruckfeder 24, die sich ihrerseits unter Zwischenschaltung einer Mutter 25 und einer Verstellschraube 26 am Gehäuse 1 abstützt (siehe insbesondere Fig. 3).In the sheet metal stamping pieces 81, 82 forming the coupling, a pin 13 is mounted axially parallel to the pivot pins 11, 12. This carries a locking lever 14, a guide bush 15 with a flange 16 and a locking roller 17. This locking roller engages in the normal operating state of the toe in a locking recess which consists of two mirror-like intersecting levers 18, 19. Each lever is mounted on an axis 20 and 21, which are provided in the housing 1 parallel to the axes 4 and 5. Both levers stand with the interposition of an axially parallel pin 22 and a pressure piece 23 under the influence of a helical compression spring 24, which in turn is supported on the housing 1 with the interposition of a nut 25 and an adjusting screw 26 (see in particular FIG. 3).

Die Seitenbacken 9, 10 sind über die Anlenkzapfen 11, 12 hinaus verlängert. An diesen Verlängerungen ist jeweils ein Hebel 27 bzw. 28 gelagert, über die sich die Seitenbacken am Sperrhebel 14 abstützen. Zu diesem Zweck weist der Sperrhebel zwei Abstufungen 29, 30 auf. Für den Sperrhebel ist noch beiderseits der Symmetrieebene des Backens jeweils ein gehäusefester Anschlag 41 bzw. 42 vorgesehen. Bei der vorliegenden Ausführung befinden sich diese Anschläge auf den Achsen 20 und 21 für die die Rastmulde bildenden Hebel 18, 19.The side jaws 9, 10 are extended beyond the pivot pins 11, 12. A lever 27 or 28 is supported on each of these extensions, by means of which the side jaws are supported on the locking lever 14. For this purpose, the locking lever has two gradations 29, 30. A stop 41 or 42 fixed to the housing is provided for the locking lever on both sides of the plane of symmetry of the jaw. In the present embodiment, these stops are on the axles 20 and 21 for the levers 18, 19 forming the locking recess.

Jeder der sich am Sperrhebel 14 abstützenden Hebel 27, 28 weist noch einen achsparallelen Führungsstift 31 bzw. 32 auf. Für jeden Führungsstift ist in dem Blechstanzstück 81 eine Kulisse 33 bzw. 34 vorgesehen, deren Zweck im folgenden noch ausführlich beschrieben ist. Zwischen dem Sperrhebel 14 und dem Blechstanzstück 81 ist auf dem Zapfen 13 eine gewundene Biegefeder 35 gelagert, die mit ihren freien Enden 36 die Führungsstifte 31, 32 hintergreift und diese damit federnd in ihrer Normalstellung entsprechend Fig. 2 hält. Ebenfalls zur Lagesicherung der Stützhebel 27, 28 dient noch eine Nockenscheibe 37, die auf dem Stift 22 gelagert und somit von der Schraubendruckfeder 24 belastet ist. Bei einer Bewegung des Stiftes 22 in Längsrichtung des Backens ist die Nockenscheibe zwischen den beiden Achsen 20 und 21 geführt. An den beiden Enden der Wirkseite der Nockenscheibe ist noch jeweils eine Auflaufschräge 38 bzw. 39 für den jeweiligen Führungsstift 31 bzw. 32 vorhanden.Each of the levers 27, 28 supported on the locking lever 14 also has an axially parallel guide pin 31 or 32. For each guide pin a backdrop 33 or 34 is provided in the sheet metal punch 81, the purpose of which is described in detail below. Between the locking lever 14 and the sheet metal punch 81, a coiled spiral spring 35 is mounted on the pin 13, which engages with the free ends 36 behind the guide pins 31, 32 and thus resiliently holds them in their normal position according to FIG. 2. Also used to secure the position of the support levers 27, 28 is a cam disk 37 which is mounted on the pin 22 and is therefore loaded by the helical compression spring 24. When the pin 22 moves in the longitudinal direction of the jaw, the cam disk is guided between the two axes 20 and 21. At the two ends of the active side of the cam disk there is also a run-up slope 38 or 39 for the respective guide pin 31 or 32.

Die Führungsstifte 31, 32 stehen also gegenüber den sie tragenden Hebeln 27, 28 sowohl nach oben als auch nach unten vor, wobei wie schon gesagt die oberen Enden jeweils in eine Kulisse 33 bzw. 34 des Blechstanzstücks 81 ragen, während die unteren Enden sich vor der Nockenscheibe 37 her bis in die Nähe des Flansches 16 der Führungsbuchse 15 erstrecken.The guide pins 31, 32 thus protrude from the levers 27, 28 supporting them both upwards and downwards, the upper ends of each projecting into a link 33 or 34 of the sheet-metal punched piece 81, while the lower ends protrude of the cam disk 37 extend into the vicinity of the flange 16 of the guide bush 15.

Die Hebel 6, 7 des Gelenkvierecks sind aus im wesentlichen U-förmig gebogenen Blechstanzstücken gebildet, die in den Fig. 2 bis 4 im Schnitt durch die Stege dargestellt sind. Jeder Schenkel weist einen Einschnitt auf, durch den sich die Achse 20 bzw. 21 erstrecken kann, die gehäusefest angeordnet sind und jeweils einen Hebel 18 bzw. 19 tragen, die zusammen die Rastmulde für die Rastrolle 17 bilden.The levers 6, 7 of the four-bar linkage are formed from substantially U-shaped sheet metal stampings, which are shown in FIGS. 2 to 4 in section through the webs. Each leg has an incision through which the axis 20 or 21 can extend, which are arranged fixed to the housing and each carry a lever 18 or 19, which together form the locking trough for the locking roller 17.

Normalerweise nehmen die einzelnen Teile des Vorderbackens ihre in den Fig. 1 bis 3 gezeigte Position ein. Wird nun von einem nicht dargestellten Schuh eine Kraft auf eine der Seitenbacken 9 bzw. 10 übertragen, welche die Vorspannung der Schraubendruckfeder 24 übersteigt, erfolgt ein Schwenken des Gelenkvierecks um die Achsen 4, 5, wobei jedoch die Seitenbacken 9, 10 ihre Lage gegenüber der Koppel 8 nicht verändern. Beim Nachlassen der Kraft stellt sich das Gelenkviereck unter dem Einfluß der Schraubendruckfeder 24 wieder in seine Normallage zurück.Normally, the individual parts of the toe take up their position shown in FIGS. 1 to 3. If a force is now transmitted from a shoe (not shown) to one of the side jaws 9 or 10, which exceeds the pretension of the helical compression spring 24, the four-bar linkage is pivoted about the axes 4, 5, but the side jaws 9, 10 have their position relative to the Do not change coupling 8. When the force decreases, the four-bar linkage returns to its normal position under the influence of the helical compression spring 24.

Wird nun aber in-folge eines entsprechend großen Kraftangriffs beispielsweise an der Seitenbacke 10 die Koppel 8 soweit zur Seite bewegt, daß der Sperrhebel 14 an dem entsprechenden Anschlag 42 zur Anlage kommt, wird bei einem noch geringfügigen Weiterbewegen der Koppel durch den sich dabei gegenüber dieser drehenden Sperrhebel durch dessen entsprechende Abstützung 30 der zugehörige Stützhebel 28 entriegelt, so daß die Seitenbacke 10 in ihre Freigabestellung entsprechend Fig. 4 schwenken kann, wodurch ein seitliches Freikommen des Skischuhs möglich ist. Das Schwenken der Seitenbacke erfolgt gegen die relativ geringe Kraft der Feder 35, die nach dem Freikommen des Schuhs vom Vorderbacken die Rückstellung der Seitenbacke in die Ausgangsposition bewirkt. Gleichzeitig stellt sich auch das Gelenkviereck unter dem Einfluß der Feder 24 wieder in seine Normallage zurück. Ausgehend von der Darstellung nach Fig. 4 erfolgt dabei auch die Verschiebung der Nockenscheibe 37 in Bezug auf die Darstellung nach rechts hin, so daß ihre Wirkseite sich wieder vor die Führungsstifte 31, 32 legt, wie in Fig. 2 gezeigt ist.If, however, in consequence of a correspondingly large force application, for example on the side jaw 10, the coupling 8 is moved to the side so far that the locking lever 14 comes to rest against the corresponding stop 42, the coupling will move a little further due to the fact that it opposes it rotating locking lever by its corresponding support 30 unlocks the associated support lever 28, so that the side jaw 10 can pivot into its release position according to FIG. 4, whereby a lateral release of the ski boot is possible. The pivoting of the side jaw takes place against the relatively low force of the spring 35 which, after the shoe is released from the front jaw, causes the side jaw to be returned to the starting position. At the same time, the four-bar linkage also returns to its normal position under the influence of the spring 24. Based on the illustration in FIG. 4, the cam disk 37 is also shifted to the right with respect to the illustration, so that its active side lies again in front of the guide pins 31, 32, as shown in FIG. 2.

Die Kulissen 33, 34 im Blechstanzstück 81 sind so bemessen, daß bei einem Schwenken der Seitenbacken 9, 10 der Anlenkpunkt der Stützhebel 27, 28 an diesen Backen nicht die Verbindungsgerade zwischen einem Anlenkzapfen 11 bzw. 12 und dem entsprechenden Führungsstift 31 bzw. 32 erreichen kann (siehe Fig. 4). Hierdurch ist eine sichere Rückstellung der Seitenbacke gegeben, sei es unter dem Einfluß der Feder 35 oder der Nockenscheibe 37. Mit der Rückstellung des Stützhebels erfolgt gleichzeitig auch eine Rückstellung des Sperrhebels 14, so daß für diesen keine besondere Haltefeder bzw. Rückstellfeder notwendig ist.The scenes 33, 34 in the sheet metal punch 81 are dimensioned such that when the side jaws 9, 10 are pivoted, the articulation point of the support levers 27, 28 on these jaws does not reach the connecting straight line between a pivot pin 11 or 12 and the corresponding guide pin 31 or 32 can (see Fig. 4). This results in a safe resetting of the side jaw, be it under the influence of the spring 35 or the cam disk 37. With the resetting of the support lever, the locking lever 14 is also reset, so that no special retaining spring or return spring is necessary for this.

Der in den Fig. 5 bis 7 dargestellte Vorderbakken unterscheidet sich nur geringfügig von dem zuvor beschriebenen Vorderbacken. Für gleiche Teile finden darum dieselben Bezugszeichen Verwendung. Insoweit wird auch auf eine Wiederholung der Beschreibung des Aufbaus des Vorderbackens verzichtet.The toe piece shown in FIGS. 5 to 7 differs only slightly from the toe piece described above. The same reference numerals are therefore used for the same parts. In this respect, the description of the structure of the toe piece is not repeated.

Anstelle der Koppel 8 ist eine Koppel 44 vorhanden, die wiederum aus zwei Blechstanzstücken gebildet ist, die parallel zueinander mit Abstand auf den Anlenkzapfen 11, 12 gelagert sind. Auf diesen Anlenkzapfen ist wiederum jeweils eine Seitenbacke 45 bzw. 46 gelagert, die an ihrer erfindungsgemäß vorgesehenen Verlängerung 47 bzw. 48 einen als Klinkenhebel ausgebildeten Hebel 49 bzw. 50 tragen. In den die Koppel 44 bildenden Blechstanzstücken sind parallel zu den Anlenkzapfen 11 und 12 zwei Sperrstifte 51, 52 gelagert, die normalerweise von jeweils einem Klinkenhebel 49 bzw. 50 hintergriffen werden, wodurch ein Ausschwenken der Seitenbacken 45, 46 verhindert ist. Die Klinkenhebel werden unter dem Einfluß jeweils einer gewundenen Biegefeder 53 in ihrer Sperrstellung gehalten. Jede Seitenbacke steht noch unter dem Einfluß einer Rückstellfeder 54 bzw. 55, die ebenfalls als gewundene Biegefeder ausgebildet und deren Abstützschenkel an der Koppel 44 verhakt ist.Instead of the coupling 8 there is a coupling 44, which in turn is formed from two sheet-metal stampings, which are mounted parallel to one another at a distance on the pivot pins 11, 12. A side jaw 45 or 46 is in turn mounted on each of these pivot pins, which carry a lever 49 or 50 designed as a ratchet lever on their extension 47 or 48 provided according to the invention. In the sheet metal stampings forming the coupling 44, two locking pins 51, 52 are mounted parallel to the pivot pins 11 and 12, which are normally engaged behind by a ratchet lever 49 or 50, thereby preventing the side jaws 45, 46 from swinging out. The ratchet levers are each under the influence of a winding bending arm the 53 held in its locked position. Each side jaw is still under the influence of a return spring 54 or 55, which is also designed as a spiral spiral spring and whose support leg is hooked on the coupling 44.

Die Klinke jedes Klinkenhebels 49, 50 geht über in eine Gleitfläche 56 bzw. 57, die zum Zusammenwirken mit jeweils einem skifesten Anschlag vorgesehen sind. Als skifeste Anschläge dienen bei dieser Konstruktion die Achsen 20, 21 unmittelbar.The pawl of each pawl lever 49, 50 merges into a sliding surface 56 or 57, which are provided for interaction with a ski-fixed stop. The axles 20, 21 serve directly as ski-fixed stops in this construction.

Figur 5 zeigt den Vorderbacken in seiner Normalstellung. Ebenso wie bei der zuerst beschriebenen Ausführung erfolgt ein Schwenken des Gelenkvierecks um die Achsen 4, 5 im Augenblick des Angriffs einer die Vorspannung der Schraubendruckfeder 24 übersteigende Kraft an einer der Seitenbacken 45 bzw. 46. Ist dieser Kraftangriff von entsprechender Größe und Zeitdauer, erfolgt am Ende des sogenannten Elastizitätsweges (siehe Figur 6) ein Anschlagen des in Bewegungsrichtung vornliegenden Klinkenhebels (hier Klinkenhebel 49) mit seiner Gleitfläche 56 an die Achse 20, was zu einem Enthaken des Klinkenhebels vom Sperrstift 51 führt. Hierdurch wird die Seitenbacke 45 freigegeben und kann in ihre Freigabestellung entsprechend Figur 7 schwenken, wodurch ein seitliches Freikommen des Skischuhs ermöglicht wird. Das Schwenken der Seitenbacke erfolgt gegen den Widerstand der Rückstellfeder 54, so daß nach dem Freikommen des Schuhs die Seitenbacke in ihre Normallage zurückkehrt. Der mit der Seitenbacke verbundene Klinkenhebel, der unter dem Einfluß der Feder 53 steht, schlägt dabei am Sperrstift 51 an und hintergreift mit Erreichen der Endlage der Seitenbacke den Sperrstift. Der Vorderbacken nimmt dann wieder mit der gleichzeitig erfolgten Rückstellung des Gelenkvierecks seine in Figur 5 gezeigte Normalstellung ein.Figure 5 shows the front jaw in its normal position. Just as in the first-described embodiment, the four-bar linkage is pivoted about the axes 4, 5 at the moment when a force exceeding the pretension of the helical compression spring 24 is applied to one of the side jaws 45 or 46. If this force application is of an appropriate size and duration, it takes place on At the end of the so-called elastic path (see FIG. 6), the ratchet lever (here ratchet lever 49 here) strikes the axis 20 with its sliding surface 56, which leads to the ratchet lever being unhooked from the locking pin 51. As a result, the side jaw 45 is released and can pivot into its release position in accordance with FIG. 7, which enables the ski boot to be released laterally. The pivoting of the side jaw takes place against the resistance of the return spring 54, so that after the shoe is released the side jaw returns to its normal position. The pawl lever connected to the side jaw, which is under the influence of the spring 53, strikes the locking pin 51 and engages behind the locking pin when the side jaw reaches the end position. The toe then resumes its normal position shown in FIG. 5 with the simultaneous resetting of the quadrilateral joint.

Claims (9)

1. A front piece for safety ski bindings comprising:
a support member (8; 44) adapted to pivot in a sideway direction against the spring force of a detent means (17, 18, 19, 24) if excessive side forces occur, said support member carrying two side holding means (9, 10; 45, 46) providing support for the sole of the boot in lateral and forward directions, said support member forming the coupling means of a linkage quadrangle, wherein levers (6, 7) of said linkage quadrangle pointing from the coupling means (8,44) to the tip of the ski are supported at their front ends at vertical axes (4, 5) which are fixed to the base plate, wherein said side holding means are normally held immovable with regard to said support member, wherein however, after a predetermined pivotal movement of the support member, the side holding means, which is located forwardly in the direction of movement, pivots so as to release the sole of the boot, and wherein after the release of the sole of the boot, an automatic reset of all moved parts into the initial position occurs, characterized in that the side holding means (9, 10; 45, 46) are prolonged beyond their hinge point (11, 12) at the support member (8; 44), and are each releasably blocked by means of said extensions at least one blocking member (14; 51, 52) provided at said support member (8; 44) with the intermediation of a lever (27, 28; 49, 50), which releases at the end of the pivotal outward movement of the support member the respective side holding means by abutment of the blocking member (14) of the lever (49, 50) at an abutment (20, 21; 41, 42) fixedly mounted to a base plate.
2. The front piece of claim 1, characterized in that each side holding means (45, 46) has assigned to it a blocking member (51, 52) in the form of a blocking pin, that the lever (49, 50) at the extension (47, 48) of the side holding means (45, 46) is a ratchet lever which resiliently moves behind the blocking pin (51, 52).
3. The front piece of claim 1, characterized in that for each ratchet lever (49, 50) a wound bending spring (53) is provided and is supported at the extension (47, 48).
4. The front piece of claim 1, characterized in that the blocking member (14) is a blocking lever which is mounted centrally at the support member (14) in relationship parallel to the axis of the side holding means (9, 10), and that for said blocking lever (14) on both sides of the plane of symmetry of the front piece, an abutment (41, 42) is fixedly mounted to the base plate.
5. The front piece of claim 4 characterized in that the lever (27, 28) provided at the extension of the side holding means (9, 10) is a blocking lever (14) supported by said support lever.
6. The front piece of claim 5, characterized in that each support lever (26, 28) supports an axis- parallel guide pin (31, 32), and in the support member (8) for each guide pin a link (33, 34) is provided which inhibits that the stretched position of the support lever (26, 28) and the extension of the side holding means (9, 10) is reached during the pivotal movement.
7. The front piece of claim 5 or 6 characterized in that the support levers (27, 28) are resiliently held in their normal position at the steps (29, 30) of the blocking lever (14).
8. A front piece of one of claims 5 to 7, characterized in that said support levers (27, 28) are held in their normal position by a cam disk (37) which is moveable in longitudinal direction against the force of a spring (24).
9. The front piece of claim 8 characterized in that the spring which loads the cam (37) is the spring (24) of the detent means.
EP86104851A 1985-05-02 1986-04-09 Frontpiece for safety skibindings Expired - Lifetime EP0200044B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86104851T ATE54422T1 (en) 1985-05-02 1986-04-09 TOE TOE FOR SAFETY SKI BINDINGS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3515847A DE3515847C2 (en) 1985-05-02 1985-05-02 Front jaws for safety ski bindings
DE3515847 1985-05-02

Publications (3)

Publication Number Publication Date
EP0200044A2 EP0200044A2 (en) 1986-11-05
EP0200044A3 EP0200044A3 (en) 1987-08-05
EP0200044B1 true EP0200044B1 (en) 1990-07-11

Family

ID=6269680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104851A Expired - Lifetime EP0200044B1 (en) 1985-05-02 1986-04-09 Frontpiece for safety skibindings

Country Status (5)

Country Link
US (1) US4735434A (en)
EP (1) EP0200044B1 (en)
JP (1) JPS61253083A (en)
AT (1) ATE54422T1 (en)
DE (1) DE3515847C2 (en)

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Publication number Priority date Publication date Assignee Title
DE8633618U1 (en) * 1986-12-16 1988-04-14 Marker Deutschland GmbH, 8100 Garmisch-Partenkirchen Front jaws for safety ski bindings
DE8633619U1 (en) * 1986-12-16 1988-04-14 Marker Deutschland GmbH, 8100 Garmisch-Partenkirchen Front jaws for safety ski bindings
DE3734492A1 (en) * 1987-10-12 1989-04-20 Geze Sport BEFORE A FRONT STAND OF A SKIS, FRONT BAKES OF A SAFETY SKI BINDING
FR2625443B1 (en) * 1988-01-05 1990-05-04 Salomon Sa SKI SAFETY ATTACHMENT FOR TRIGGERING THE FRONT OF A SHOE MOUNTED ON THE SKI
FR2625911B1 (en) * 1988-01-15 1990-06-08 Salomon Sa SECURITY FIXING FOR SKI
FR2633191B1 (en) * 1988-06-24 1992-10-02 Salomon Sa SECURITY FIXING FOR SKI
AT390380B (en) * 1988-07-04 1990-04-25 Tyrolia Freizeitgeraete SAFETY SKI BINDING
DE3905445A1 (en) * 1989-02-22 1990-08-23 Marker Deutschland Gmbh FRONT JAWS FOR SAFETY SKI BINDINGS
DE4022945A1 (en) * 1990-03-29 1992-01-23 Jungkind Roland SAFETY SKI BINDING WITH SWIVELING SOLE PANEL
DE4010050A1 (en) * 1990-03-29 1991-10-02 Jungkind Roland Safety ski-binding assembly - has release links bearing against support and release member
US5207448A (en) * 1992-03-27 1993-05-04 Bonvallet Duane J Inertia compensated step-in ski binding
AT399102B (en) * 1993-02-15 1995-03-27 Tyrolia Freizeitgeraete SECURITY OBLIGATION
FR2717705B1 (en) * 1994-03-24 1996-06-07 Frederic Paradis Front stop for alpine ski safety binding.
FR2808454B1 (en) * 2000-05-04 2002-08-02 Salomon Sa RETAINING ELEMENT OF THE FRONT OF A SHOE ON A SKI
DE102016013104A1 (en) * 2016-11-02 2018-05-03 Skis Rossignol Sas ski binding

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Publication number Priority date Publication date Assignee Title
DE1578858A1 (en) * 1967-09-28 1971-02-18 Hannes Marker Toe piece for safety ski bindings
DE1809889B2 (en) * 1968-11-20 1975-05-22 Vereinigte Baubeschlagfabriken Gretsch & Co Gmbh, 7250 Leonberg Toe piece for safety ski bindings
DE1934451A1 (en) * 1969-07-07 1971-02-04 Hans Goetz Safety ski binding
DE1949123A1 (en) * 1969-09-29 1971-04-01 Hannes Marker Toe piece for safety ski bindings
JPS4942968A (en) * 1972-09-01 1974-04-23
AT360396B (en) * 1976-04-14 1981-01-12 Tyrolia Freizeitgeraete JAW BODY FOR SKI BINDINGS
FR2471795B1 (en) * 1979-12-21 1985-05-31 Look Sa SKI ATTACHMENT FRONT
JPS581341U (en) * 1981-06-25 1983-01-06 ナショナル住宅産業株式会社 storage device
DE3343943C2 (en) * 1983-12-05 1995-07-20 Marker Int Front jaws for safety ski bindings
DE3403472A1 (en) * 1984-02-01 1985-08-08 Marker Patentverwertungsgesellschaft mbH, Baar FRONT JAWS FOR SAFETY SKI BINDINGS

Also Published As

Publication number Publication date
JPS61253083A (en) 1986-11-10
ATE54422T1 (en) 1990-07-15
US4735434A (en) 1988-04-05
EP0200044A2 (en) 1986-11-05
DE3515847C2 (en) 1994-04-07
EP0200044A3 (en) 1987-08-05
DE3515847A1 (en) 1986-11-06

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