EP0657193B1 - Skibrake - Google Patents

Skibrake Download PDF

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Publication number
EP0657193B1
EP0657193B1 EP94117504A EP94117504A EP0657193B1 EP 0657193 B1 EP0657193 B1 EP 0657193B1 EP 94117504 A EP94117504 A EP 94117504A EP 94117504 A EP94117504 A EP 94117504A EP 0657193 B1 EP0657193 B1 EP 0657193B1
Authority
EP
European Patent Office
Prior art keywords
ski
brake
arms
step plate
base plate
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
EP94117504A
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German (de)
French (fr)
Other versions
EP0657193A3 (en
EP0657193A2 (en
Inventor
Karl Stritzl
Hubert Würthner
Helmut Wladar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HTM Sport und Freizeitgerate GmbH
Original Assignee
HTM Sport und Freizeitgerate GmbH
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Publication date
Application filed by HTM Sport und Freizeitgerate GmbH filed Critical HTM Sport und Freizeitgerate GmbH
Publication of EP0657193A2 publication Critical patent/EP0657193A2/en
Publication of EP0657193A3 publication Critical patent/EP0657193A3/en
Application granted granted Critical
Publication of EP0657193B1 publication Critical patent/EP0657193B1/en
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C7/00—Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
    • A63C7/10—Hinged stoppage blades attachable to the skis in such manner that these blades can be moved out of the operative position
    • A63C7/1006—Ski-stoppers
    • A63C7/1013—Ski-stoppers actuated by the boot
    • A63C7/1033—Ski-stoppers actuated by the boot articulated about at least two transverse axes
    • A63C7/104—Ski-stoppers actuated by the boot articulated about at least two transverse axes laterally retractable above the ski surface

Definitions

  • the invention relates to a ski brake, a driving position and a braking position can take with a base plate that can be attached to a ski or a ski binding which is arranged symmetrically to the longitudinal median brake lever, each with a brake and an actuating arm can be pivoted about an axis which runs essentially transversely to the ski are articulated, and with one of at least one actuating spring essentially upwards acted on tread plate, which via a pivotable connecting piece with the Base plate is connected and on which tread plate the actuating arms of the brake levers are stored, the brake arms of the brake lever in the driving position with respect to the position in Braking position are pivoted towards the longitudinal axis of the ski.
  • Ski brakes of the type mentioned above are known, for example from DE-A-3 145 646, DE-A-3 110 743 or FR-A-2 511 258.
  • DE-OS 3 145 646 Marker described a ski brake in which an essentially U-shaped Brake lever is provided, which together with a pedal (tread plate) and a connecting piece, on which a spring engages, forms a lever system which, when the Brake lever from the braking position to the driving position against the force of the spring is depressed.
  • the brake lever is to enable a complete depression mounted longitudinally on the step plate.
  • substantially vertical guide surfaces are provided, which keep the brake levers pressed in the driving position towards the center of the ski.
  • a ski brake is also known, in which in contrast to the brake described above (DE-OS 3 145 646) not the brake lever, but the connecting piece on the tread plate is slidably mounted in the longitudinal direction, to allow the lever system to be fully depressed.
  • ski brake A disadvantage of this known ski brake is that the pressure bracket and its Bearings are subject to high material stress and are therefore prone to wear.
  • the ski brake is also not in its braking position with a certain preload acted on, so that they in this position undesirably not a particularly stable position occupies.
  • a ski brake is known in which the spring-loaded Footplate is not articulated via a connecting piece, but directly to the base plate and the ends of the brake levers engaging on the tread plate are elastic via a spring are interconnected.
  • the brake levers are mounted on the base plate each a cross hole that is extended to the outside to avoid the risk of icing on this Reduce bearing.
  • Such a ski binding came along advantageously few components can be realized, but has the disadvantage that the Footplate in the braking position and not during the swiveling movement into the driving position desired, essentially horizontal position.
  • the object of the invention is to compare the effect of the spring on the brake levers to improve known ski brakes of the type mentioned.
  • the actuating spring extends over an extension arm. of the page considered - at a distance from the connector on the underside of the tread plate, whereby the point of attack of the extension arm on the tread plate when the Brake lever is changeable in the longitudinal direction.
  • the effect of the spring on the tread plate or on the brake lever can be independent of the connector are designed and consequently to the kinematic requirements be adjusted.
  • This measure also applies to the brake levers created much more favorable leverage ratios, so that with lower spring forces leaching is found to ensure a stable position of the brake levers.
  • the extension arm has on its engaging on the tread plate End a slider on which is provided on the underside of the tread plate Sliding surface is supported.
  • Preferred embodiments of a ski brake according to the invention have a sliding surface which is either flat and substantially parallel to the top of the tread plate runs or has an inclined portion which rearwardly into a substantially section running parallel to the tread plate.
  • FIGS. 1 to 5 in which an invention Ski brake 1 is shown, which is fastened to a ski 3 by means of a base plate 2.
  • this base plate 2 are two brake levers 4a arranged symmetrically to the longitudinal center plane, 4b pivoted about a transverse axis Q1 and thus each form a two-armed lever with an actuating arm 5a, 5b and a brake arm 6a, 6b.
  • the actuating arms 5a, 5b of the Brake levers 4a, 4b are essentially horizontal on a spring-loaded, braking position arranged tread plate 7 pivotally mounted about a transverse axis Q2.
  • a helical Torsion spring 10a, 10b arranged, which on the base plate 2 via an extension 11a, 11b or is supported on the ski and is symmetrical to the longitudinal center plane Extension arm 12a, 12b acts at a distance from the connecting piece 9 on the tread plate 7.
  • the extension arms 12a, 12b of the torsion spring 10a, 10b are viewed from the side snapped upwards in its middle, so that the ski brake is compact is possible and there is a good transmission of the spring force from the base plate to the Step plate results.
  • the ends of the extension arms 12a, 12b are bent to the side and connected to each other via a slider 13.
  • the slider 13 acts on a bearing piece 14 or 14 'on the underside of the tread plate 7 and is provided for this purpose with a sliding surface 15 or 15 ', which is in Longitudinal direction essentially from the articulation point of the connecting piece 9 to the Bearing points of the brake lever 4a, 4b extends.
  • the one shown in Figure 1 on the bearing piece 14 provided sliding surface 15 is flat and runs substantially parallel to the Step plate 7, whereas the one shown in FIG. 1a, formed on the bearing piece 14 '
  • the sliding surface 15 ' has a section 15'b which is inclined with respect to the tread plate 7 and which two flat sections 15'a, 15'c which run essentially parallel to the tread plate 7 connects with each other. This works through the embodiment variant shown in FIG.
  • the bearing piece 14 or 14 In the region of the pivot axis Q2, the bearing piece 14 or 14 'points symmetrically to Half-shell-shaped recesses 16a, 16b formed in the longitudinal center plane, in which the actuating arms 5a, 5b of the brake levers 4a, 4b with their towards the longitudinal center plane bent ends 17a, 17b are mounted.
  • These half-shell-shaped recesses 16a, 16b are flared towards the center of the ski, so that between the ends 17a, 17b and these recesses 16a, 16b an exemption is formed, the lateral Allows pivoting movement of the brake levers 4a, 4b.
  • the half-shell-shaped recesses 16a, 16b forward projections 18a, 18b, which are fitted in corresponding recesses 19a, 19b of the tread plate.
  • the bearing piece 14 or 14 ' is firmly connected to the tread plate 7, for example riveted.
  • the bent ends 17a, 17b of the actuating arms 5a, 5b are in a known manner a spring 20 arranged symmetrically to the longitudinal center plane is connected to one another in such a way that the brake arms 6a, 6b of the brake levers 4a, 4b are pushed apart laterally.
  • the spring 20 is a coil spring, which extends between the portions of the ends 17a, 17b lying in the form of half-shells 16a, 16b encloses and laterally in position by the half-shell-shaped recesses 16a, 16b is held.
  • this spring 20 any other resilient element can be used.
  • the tread plate 7 is delimited by side walls 24a, 24b, which are integrally formed on the bottom Have projections 25a, 25b.
  • the side walls 24a, 24b are among others for the side Support of the actuating arms 5a, 5b immediately before the brake levers 4a are pulled in. 4b provided (see FIG. 3), whereas the projections 25a, 25b formed downward in the Enable a defined support of the step plate 7 on the ski 3 in the driving position (cf. Fig. 4).
  • the brake levers 4a, 4b are mounted on the base plate 2 by means of one each transverse to Longitudinal direction along the pivot axis Q1 provided bore 26a, 26b, in which each a brake lever 4a, 4b in a known manner via a bent across the ski Bearing section 27a, 27b, which connects the actuating arm 5a, 5b to the brake arm 6a, 6b, is stored. Due to these bearing sections 27a, 27b, the pivot axis Q1 is the brake lever 4a, 4b.
  • the bores 26a, 26b are both inward and outward conical extensions 28a, 28b, 29a, 29b provide a certain Allow pivoting of the brake levers 4a, 4b across the ski. In addition, they meet Extensions 28a, 28b, 29a, 29b the task of freezing these bearings through to prevent the smallest possible storage space.
  • the base plate 2 each has a laterally formed nose 30a, 30b, which for lateral support of the brake levers 4a, 4b in their braking position and lateral guidance of these brake levers 4a, 4b at a distance from the ski 3 during the Serve swivel movement from the travel to the braking position.
  • the tread plate 7 of a ski brake 1 is in one Longitudinal center section and a view from the rear.
  • the tread plate 7 is two symmetrically arranged, longitudinally aligned and inclined with respect to the vertical guide surfaces 32a, 32b can be seen, which arise on the side walls 24a, 24b of the tread plate 7 and in Lead diagonally upwards in the direction of the longitudinal median plane.
  • These guide surfaces 32a, 32b are in the rear part of the tread plate 7 and participate in the transition to the driving position the operating arms 5a, 5b of the brake levers 4a, 4b together so that they laterally in Be shifted towards the center of the ski (see Fig. 3 and 5).
  • a recess 33 is provided on the tread plate 7 in the rear end section which the rearward extensions 22a, 22b of the bearing piece 14 and 14 ' fitted and connected together.
  • the tread plate is 7 is loaded upwards by the force of the torsion springs 10a, 10b, the slider 13, by means of which the spring force is transmitted to the tread plate 7 at the front end the sliding surface 15 or on the inclined portion 15'b of the sliding surface 15 '.
  • the Operating arms 5a, 5b of the brake levers 4a, 4b are in this position by the action of Torsion springs 10a, 10b brought into abutment with the stops 31a, 31b of the base plate 2, so that they occupy a stable position in the longitudinal direction of the ski.
  • the brake arms 6a, 6b of the Brake levers 4a, 4b are pushed apart laterally in this position by the spring 20 and supported laterally by the lugs 30a, 30b of the base plate 2, so that a stable one lateral position of the brake levers 4, 4b is guaranteed.
  • Those in the curved guide 21a, 21b guided pin-shaped projections 23a, 23b of the connecting piece 9 are located, as can be seen in Figure 1, in its rear stop position.
  • the ski brake 1 When a ski boot is inserted into the ski binding, the ski brake 1 is released from it Braking position initially in the lowered position shown in Figures 2 and 3.
  • the tread plate 7 is pressed down towards the ski 3, the brake levers 4a, 4b about the axis Q1 and the connector 9 about their bearing portions 27a, 27b and the Axis Q3 can be pivoted in the direction of the ski surface until that in FIGS. 2 and 3 shown position is reached.
  • the slider 13 slides out the front end position along the sliding surface 15 or 15 'of the bearing piece 14 or 14' rear, whereby the effect of the torsion springs 10a, 10b in the rear area of the Step plate 7 reinforced.
  • the slider 13 In the embodiment variant of the sliding surface 15 'shown in FIG. 1a in this phase of movement, the slider 13 is moved from that with respect to the tread plate 7 inclined section 15'b to the rear, substantially parallel to the tread plate 7 extending section 15'c of the bearing piece 14 '.
  • the brake arms 6a, 6b are the Brake levers 4a, 4b have already been pivoted so far up that they are seen from the side above the ski surface and are aligned substantially parallel to this.
  • the brake arms 6a, 6b of the brake levers 4a, 4b which are no longer by the Lugs 30a, 30b are supported laterally, pushed apart laterally by the spring 20 and on supported the side walls 24a, 24b of the tread plate 7, so that a stable also in this phase lateral position of the brake lever 4a, 4b is guaranteed. It can also be seen in FIG.
  • the tread plate 7 is supported with its downward projections 25a, 25b on the ski surface, so that the tread plate 7 and the connector 9 against the force of the torsion springs 10a, 10b are pressed further down in the direction of the ski until the in Figures 4 and 5 shown end position is reached.
  • the bolt-shaped projections 23a, 23b of the Connection piece 9 are along the guides 21a, 21b to their front end position reached. Due to the force of the guide surfaces 32a, 32b on the actuating arms 5a, 5b of the brake levers 4a, 4b, the brake arms 6a, 6b against the force of the spring 20 in Moved towards the middle of the ski. As can be seen in FIG.
  • the bent ends are 17a, 17b of the actuating arms 5a, 5b inclined to one another in this end position, as a result of which the spring 20 is under tension and the brake arms 6a, 6b immediately after releasing the tread plate 7 pushing the ski boot apart again.
  • the brake levers 4a, 4b the required lateral
  • the ski brake 1 When getting out of the ski binding with the ski boot, the ski brake 1 is released from it Driving position brought into the braking position, the process described above in in reverse order.
  • a ski brake according to the invention based on a series further embodiments can be realized.
  • the training of Spring force is not tied to a torsion spring and can also be used on other than the one here specified locations in the base plate.

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  • Braking Arrangements (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Description

Gegenstand der Erfindung ist eine Skibremse, die eine Fahrtstellung und eine Bremsstellung einnehmen kann, mit einer an einem Ski oder einer Skibindung befestigbaren Grundplatte, an welcher symmetrisch zur Längsmittelebene angeordnete Bremshebel mit je einem Brems-und einem Betätigungsarm um eine im wesentlichen quer zum Ski verlaufende Achse schwenkbar angelenkt sind, und mit einer von zumindest einer Betätigungsfeder im wesentlichen nach oben beaufschlagten Trittplatte, welche über ein schwenkbares Verbindungsstück mit der Grundplatte verbunden ist und an welcher Trittplatte die Betätigungsarme der Bremshebel gelagert sind, wobei die Bremsarme der Bremshebel in Fahrtstellung bezüglich der Lage in Bremsstellung zur Skilängsachse hin verschwenkt sind.The invention relates to a ski brake, a driving position and a braking position can take with a base plate that can be attached to a ski or a ski binding which is arranged symmetrically to the longitudinal median brake lever, each with a brake and an actuating arm can be pivoted about an axis which runs essentially transversely to the ski are articulated, and with one of at least one actuating spring essentially upwards acted on tread plate, which via a pivotable connecting piece with the Base plate is connected and on which tread plate the actuating arms of the brake levers are stored, the brake arms of the brake lever in the driving position with respect to the position in Braking position are pivoted towards the longitudinal axis of the ski.

Skibremsen der oben genannten Art sind bekannt, beispielsweise aus DE-A-3 145 646, DE-A-3 110 743 oder FR-A-2 511 258. In der DE-OS 3 145 646 ist (Marker) eine Skibremse beschrieben, bei welcher ein im wesentlichen U-förmiger Bremshebel vorgesehen ist, welcher zusammen mit einem Pedal (Trittplatte) und einem Verbindungsstück, an welchem eine Feder angreift, ein Hebelsystem bildet, welches bei Verschwenken des Bremshebels aus der Bremsstellung in die Fahrtstellung gegen die Kraft der Feder niedergedrückt wird. Um ein vollständiges Niederdrücken zu ermöglichen, ist der Bremshebel längsverschieblich an der Trittplatte gelagert. Weiters sind unterhalb der Trittplatte bezüglich der Längsmittelebene geneigte, im wesentlichen vertikale Führungsflächen vorgesehen, welche die Bremshebel in der Fahrtstellung in Richtung Skimitte gedrückt halten.Ski brakes of the type mentioned above are known, for example from DE-A-3 145 646, DE-A-3 110 743 or FR-A-2 511 258. In DE-OS 3 145 646 (Marker) described a ski brake in which an essentially U-shaped Brake lever is provided, which together with a pedal (tread plate) and a connecting piece, on which a spring engages, forms a lever system which, when the Brake lever from the braking position to the driving position against the force of the spring is depressed. The brake lever is to enable a complete depression mounted longitudinally on the step plate. Furthermore, are below the tread plate of the longitudinal center plane inclined, substantially vertical guide surfaces are provided, which keep the brake levers pressed in the driving position towards the center of the ski.

Aus der DE-PS 3 110 743 (Marker) und FR-A-2 511 258 ist weiters eine Skibremse bekannt geworden, bei welcher im Gegensatz zu der oben beschriebenen Bremse (DE-OS 3 145 646) nicht der Bremshebel, sondern das Verbindungsstück an der Trittplatte in Längsrichtung verschieblich gelagert ist, um ein vollständiges Niederdrücken des Hebelsystems zu ermöglichen.From DE-PS 3 110 743 (marker) and FR-A-2 511 258 a ski brake is also known, in which in contrast to the brake described above (DE-OS 3 145 646) not the brake lever, but the connecting piece on the tread plate is slidably mounted in the longitudinal direction, to allow the lever system to be fully depressed.

Ein Nachteil der beiden oben beschriebenen Skibremsen liegt unter anderem darin, daß die Feder sehr tief an dem Verbindungsstück angreift, sodaß eine relativ starke Federkraft erforderlich ist, um die gewünschte Vorspannung zu erzeugen.One disadvantage of the two ski brakes described above is that the Spring engages very deeply on the connector, so that a relatively strong spring force is required to generate the desired bias.

Aus der DE-PS 2 462 391 und US-A-4 171 138 (Salomon) geht eine Skibremse der eingangs genannten Art hervor, bei welcher das Verbindungsstück ein an der Grundplatte schwenkbar abgestützter, federnd ausgebildeter Druckbügel ist. Dieses Verbindungsstück und ein im wesentlichen U-förmig ausgebildeter Bremshebel sind an der Trittplatte in Abstand voneinander um je eine bezüglich der Trittplatte feste Querachse schwenkbar gelagert. Bei Verschwenken des Bremshebels von der Brems- in die Fahrtstellung wird bei dieser bekannten Skibremse der U-förmige Bremshebel über ein skifestes Widerlager in Längsrichtung so gestreckt, daß die Enden des Bremshebels in ihrer Endstellung in Richtung Skimitte gedrückt sind.DE-PS 2 462 391 and US-A-4 171 138 (Salomon) disclose a ski brake of the type mentioned at the beginning, in which the connecting piece is a resiliently supported on the base plate trained pressure bracket is. This connector and a substantially U-shaped trained brake levers are at a distance from each other on the tread plate the tread plate fixed transverse axis pivoted. When pivoting the brake lever from the braking in the driving position is the U-shaped in this known ski brake Brake lever stretched over a ski-like abutment in the longitudinal direction so that the ends of the Brake lever are pressed in their end position towards the center of the ski.

Ein Nachteil dieser bekannten Skibremse liegt darin, daß der Druckbügel und seine Lagerstellen einer hohen Materialbeanspruchung unterliegen und daher verschleißanfällig sind. Die Skibremse ist weiters in ihrer Bremsstellung nicht mit einer bestimmten Vorspannung beaufschlagt, sodaß sie in dieser Stellung in unerwünschter Weise keine besonders stabile Lage einnimmt.A disadvantage of this known ski brake is that the pressure bracket and its Bearings are subject to high material stress and are therefore prone to wear. The ski brake is also not in its braking position with a certain preload acted on, so that they in this position undesirably not a particularly stable position occupies.

Ein Mangel aller oben genannten Skibremsen ist auch darin zu sehen, daß die Feder über das Hebelsystem Verbindungsstück - Trittplatte an den Bremshebeln angreift, sodaß die Übertragung der Federkraft auf diese Bremshebel zwar mit einer geringen Anzahl von Bauteilen realisierbar ist, jedoch kinematisch unvorteilhaft ist, da die auf jeden Bremshebel wirkende resultierende Kraft aus einer Komponente normal und einer Komponente parallel zu diesem Bremshebel zusammengesetzt ist. Die für die Schwenkbewegung der Bremshebel verantwortliche Kraft ist jedoch lediglich die Normalkomponente, sodaß bei diesen bekannten Skibremsen in unerwünschter Weise kinematisch bedingte Kräfteverluste auftreten.A shortcoming of all the ski brakes mentioned above can also be seen in the fact that the spring over the Lever system connecting piece - footplate engages the brake levers so that the Transfer of the spring force to this brake lever with a small number of Components is feasible, but is kinematically disadvantageous, because the on each brake lever resulting force from a component normal and a component parallel to this brake lever is composed. The for the pivoting movement of the brake lever However, responsible force is only the normal component, so that these are known Ski brakes occur in an undesirable manner kinematically caused loss of power.

Aus der AT-PS 389 819 ist eine Skibremse bekannt geworden, bei welcher die federbelastete Trittplatte nicht über ein Verbindungsstück, sondern direkt an der Grundplatte angelenkt ist und die an der Trittplatte angreifenden Enden der Bremshebel über eine Feder elastisch miteinander verbunden sind. Die Lagerung der Bremshebel an der Grundplatte erfolgt über je eine Querbohrung, die nach außen hin erweitert ist, um die Vereisungsgefahr an dieser Lagerstelle zu verringern. Eine solche Skibindung kam in vorteilhafter Weise zwar mit wenigen Bauteilen realisiert werden, besitzt jedoch unter anderem den Nachteil, daß die Trittplatte in Bremsstellung und während der Schwenkbewegung in die Fahrtstellung nicht die gewünschte, im wesentlichen horizontale Lage einnehmen kann.From AT-PS 389 819 a ski brake is known in which the spring-loaded Footplate is not articulated via a connecting piece, but directly to the base plate and the ends of the brake levers engaging on the tread plate are elastic via a spring are interconnected. The brake levers are mounted on the base plate each a cross hole that is extended to the outside to avoid the risk of icing on this Reduce bearing. Such a ski binding came along advantageously few components can be realized, but has the disadvantage that the Footplate in the braking position and not during the swiveling movement into the driving position desired, essentially horizontal position.

Der Erfindung liegt die Aufgabe zugrunde, die Wirkung der Feder auf die Bremshebel gegenüber bekannten Skibremsen der eingangs genannten Art zu verbessern.The object of the invention is to compare the effect of the spring on the brake levers to improve known ski brakes of the type mentioned.

Erfindungsgemäß greift die Betätigungsfeder über einen Verlängerungsarm - von der Seite betrachtet- in Abstand von dem Verbindungsstück an der Unterseite der Trittplatte an, wobei der Angriffspunkt des Verlängerungsarmes an der Trittplatte bei einer Schwenkbewegung der Bremshebel in Längsrichtung veränderlich ist. According to the invention, the actuating spring extends over an extension arm. of the page considered - at a distance from the connector on the underside of the tread plate, whereby the point of attack of the extension arm on the tread plate when the Brake lever is changeable in the longitudinal direction.

Somit kann die Wirkung der Feder auf die Trittplatte bzw. auf die Bremshebel unabhängig von dem Verbindungsstück gestaltet werden und folglich an die kinematischen Anforderungen angepaßt werden. Weiters werden durch diese Maßnahme in bezug auf die Bremshebel wesentlich günstigere Hebelkraftverhältnisse geschaffen, sodaß mit geringeren Federkräften das Auslaugen gefunden wird, um eine stabile Lage der Bremshebel zu gewährleisten.Thus, the effect of the spring on the tread plate or on the brake lever can be independent of the connector are designed and consequently to the kinematic requirements be adjusted. This measure also applies to the brake levers created much more favorable leverage ratios, so that with lower spring forces leaching is found to ensure a stable position of the brake levers.

In vorteilhafter Weise weist der Verlängerungsarm an seinem an der Trittplatte angreifenden Ende ein Gleitstück auf, welches an einer an der Unterseite der Trittplatte vorgesehenen Gleitfläche abgestützt ist.Advantageously, the extension arm has on its engaging on the tread plate End a slider on which is provided on the underside of the tread plate Sliding surface is supported.

Bevorzugte Ausführungsformen einer erfindungsgemäßen Skibremse weisen eine Gleitfläche auf, welche entweder eben ist und im wesentlichen parallel zu der Oberseite der Trittplatte verläuft oder einen geneigten Abschnitt aufweist, welcher nach hinten in einen im wesentlichen parallel zur Trittplatte verlaufenden Abschnitt übergeht.Preferred embodiments of a ski brake according to the invention have a sliding surface which is either flat and substantially parallel to the top of the tread plate runs or has an inclined portion which rearwardly into a substantially section running parallel to the tread plate.

Weitere Ausgestaltungsmerkmale und Vorteile einer erfindungsgemäßen Skibremse ergeben sich aus weiteren Unteransprüchen und der folgenden Beschreibung eines Ausführungsbeispiels, in welcher auf die beiliegenden Figuren bezug genommen wird, die zeigen:

  • Figur 1 einen Längsmittelschnitt einer Ausführungsform einer erfindungsgemäßen Skibremse in Bremsstellung,
  • Figur 1a einen Längsmittelschnitt einer weiteren Ausführungsform einer erfindungsgemäßen Skibremse in Bremsstellung,
  • Figuren 2 und 3 einen Längsmittelschnitt und eine Draufsicht der Skibremse gemäß Figur 1 in niedergeschwenkter Stellung vor Einziehen der Bremshebel,
  • Figuren 4 und 5 einen Längsmittelschnitt und eine Draufsicht der Skibremse gemäß Figur 1 in Fahrtstellung,
  • Figuren 6 und 7 eine Detailansicht der Trittplatte der Skibremse von Figur 1 bzw. 1a in einem Längsmittelschnitt (Fig.6) und in einer Ansicht von hinten (Fig. 7).
    • Further design features and advantages of a ski brake according to the invention result from further subclaims and the following description of an exemplary embodiment, in which reference is made to the accompanying figures, which show:
  • FIG. 1 shows a longitudinal central section of an embodiment of a ski brake according to the invention in the braking position,
  • 1a shows a longitudinal central section of a further embodiment of a ski brake according to the invention in the braking position,
  • FIGS. 2 and 3 show a longitudinal central section and a top view of the ski brake according to FIG. 1 in the lowered position before the brake levers are pulled in,
  • 4 and 5 show a longitudinal central section and a top view of the ski brake according to FIG. 1 in the driving position,
  • 6 and 7 show a detailed view of the tread plate of the ski brake from FIGS. 1 and 1a in a longitudinal central section (FIG. 6) and in a view from the rear (FIG. 7).

    • Vorerst wird auf die Figuren 1 bis 5 Bezug genommen, in welchen eine erfindungsgemäße Skibremse 1 dargestellt ist, die mittels einer Grundplatte 2 an einem Ski 3 befestigt ist. In dieser Grundplatte 2 sind zwei symmetrisch zur Längsmittelebene angeordnete Bremshebel 4a, 4b um eine Querachse Q1 schwenkbar gelagert und bilden somit je einen zweiarmigen Hebel mit einem Betätigungsarm 5a, 5b und einem Bremsarm 6a, 6b. Die Betätigungsarme 5a, 5b der Bremshebel 4a, 4b sind an einer federbelasteten, in Bremsstellung im wesentlichen horizontal angeordneten Trittplatte 7 um eine Querachse Q2 schwenkbar gelagert.For the time being, reference is made to FIGS. 1 to 5, in which an invention Ski brake 1 is shown, which is fastened to a ski 3 by means of a base plate 2. In this base plate 2 are two brake levers 4a arranged symmetrically to the longitudinal center plane, 4b pivoted about a transverse axis Q1 and thus each form a two-armed lever with an actuating arm 5a, 5b and a brake arm 6a, 6b. The actuating arms 5a, 5b of the Brake levers 4a, 4b are essentially horizontal on a spring-loaded, braking position arranged tread plate 7 pivotally mounted about a transverse axis Q2.

    An der Grundplatte 2 ist weiters -in Fahrtrichtung hinter der Querachse Q1- ein Querbolzen 8 vorgesehen, an welchem im Bereich der Längsmittelebene ein Verbindungsstück 9 um eine durch den Bolzen 8 festgelegte Querachse Q3 schwerkbar gelagert ist. Dieses Verbindungsstück 9 verbindet die Grundplatte 2 mit der Trittplatte 7 und ist an dieser begrenzt längsverschieblich und um eine Querachse Q4 verschwenkbar angelenkt. Die Schwenkachsen Q1, Q2, Q3, Q4 bilden von der Seite betrachtet im wesentlichen ein zu einem ungleichseitigen Trapez oder einem ungleichseitigen Viereck entartetes Parallelogramm.On the base plate 2 there is also a - in the direction of travel behind the transverse axis Q1 Cross bolt 8 provided on which in the region of the longitudinal median plane a connecting piece 9 by a through the bolt 8 fixed transverse axis Q3 is supported. This Connector 9 connects the base plate 2 with the tread plate 7 and is limited to this articulated longitudinally and pivotable about a transverse axis Q4. The swivel axes Viewed from the side, Q1, Q2, Q3, Q4 essentially form one to an unequal side Trapezoid or an uneven sided degenerate parallelogram.

    An dem Querbolzen 8 ist zu beiden Seiten des Verbindungsstückes 9 je eine schraubenförmige Torsionsfeder 10a, 10b angeordnet, die über einen Fortsatz 11a, 11b an der Grundplatte 2 bzw. skifest abgestützt ist und über einen symmetrisch zur Längsmittelebene verlaufenden Verlängerungsarm 12a, 12b in Abstand von dem Verbindungsstück 9 an der Trittplatte 7 wirkt. Die Verlängerungsarme 12a, 12b der Torsionsfeder 10a, 10b sind von der Seite betrachtet etwa in ihrer Mitte nach oben abgeknickt, sodaß eine kompakte Bauweise der Skibremse möglich ist und sich eine gute Übertragung der Federkraft von der Grundplatte auf die Trittplatte ergibt. Die Enden der Verlängerungsarme 12a, 12b sind zur Seite hin umgebogen und über ein Gleitstück 13 miteinander verbunden.On the cross pin 8 is on both sides of the connector 9, a helical Torsion spring 10a, 10b arranged, which on the base plate 2 via an extension 11a, 11b or is supported on the ski and is symmetrical to the longitudinal center plane Extension arm 12a, 12b acts at a distance from the connecting piece 9 on the tread plate 7. The extension arms 12a, 12b of the torsion spring 10a, 10b are viewed from the side snapped upwards in its middle, so that the ski brake is compact is possible and there is a good transmission of the spring force from the base plate to the Step plate results. The ends of the extension arms 12a, 12b are bent to the side and connected to each other via a slider 13.

    Das Gleitstück 13 wirkt an einem Lagerstück 14 oder 14', das an der Unterseite der Trittplatte 7 angeordnet und zu diesem Zweck mit einer Gleitfläche 15 oder 15' versehen ist, die sich in Längsrichtung im wesentlichen von der Anlenkstelle des Verbindungsstückes 9 bis zu den Lagerstellen der Bremshebel 4a, 4b erstreckt. Die in Figur 1 dargestellte, an dem Lagerstück 14 vorgesehene Gleitfläche 15 ist eben ausgebildet und verläuft im wesentlichen parallel zu der Trittplatte 7, wogegen die in Figur 1a dargestellte, an dem Lagerstück 14' ausgebildete Gleitfläche 15' einen bezüglich der Trittplatte 7 geneigten Abschnitt 15'b aufweist, welcher zwei ebene, im wesentlichen parallel zur Trittplatte 7 verlaufende Abschnitte 15'a, 15'c miteinander verbindet. Durch die in Figur 1a dargestellte Ausführungsvariante wirkt das Gleitstück 13 in Bremsstellung an dem geneigten Abschnitt 15'b der Gleitfläche 15', wodurch die normal auf die Bremshebel 4a, 4b wirkende Komponente der Federkraft zusätzlich verstärkt wird und in dieser Stellung daher eine stabilere Lage der Bremshebel 4a, 4b möglich ist. The slider 13 acts on a bearing piece 14 or 14 'on the underside of the tread plate 7 and is provided for this purpose with a sliding surface 15 or 15 ', which is in Longitudinal direction essentially from the articulation point of the connecting piece 9 to the Bearing points of the brake lever 4a, 4b extends. The one shown in Figure 1 on the bearing piece 14 provided sliding surface 15 is flat and runs substantially parallel to the Step plate 7, whereas the one shown in FIG. 1a, formed on the bearing piece 14 ' The sliding surface 15 'has a section 15'b which is inclined with respect to the tread plate 7 and which two flat sections 15'a, 15'c which run essentially parallel to the tread plate 7 connects with each other. This works through the embodiment variant shown in FIG. 1a Slider 13 in the braking position on the inclined portion 15'b of the sliding surface 15 ', whereby the component of the spring force which normally acts on the brake levers 4a, 4b is reinforced and in this position therefore a more stable position of the brake levers 4a, 4b possible is.

    Im Bereich der Schwenkachse Q2 weist das Lagerstück 14 bzw. 14' symmetrisch zur Längsmittelebene ausgebildete, halbschalenförmige Ausnehmungen 16a, 16b auf, in welchen die Betätigungsarme 5a, 5b der Bremshebel 4a, 4b mit ihren in Richtung zur Längsmittelebene umgebogenen Enden 17a, 17b gelagert sind. Diese halbschalenförmigen Ausnehmungen 16a, 16b sind in Richtung Skimitte konisch erweitert, sodaß zwischen den Enden 17a, 17b und diesen Ausnehmungen 16a, 16b eine Freistellung ausgebildet ist, die eine seitliche Schwenkbewegung der Bremshebel 4a, 4b ermöglicht. Weiters weisen die halbschalenförmigen Ausnehmungen 16a, 16b nach vorne gerichtete Fortsätze 18a, 18b auf, die in entsprechenden Ausnehmungen 19a, 19b der Trittplatte eingepaßt sind. Das Lagerstück 14 bzw. 14' ist mit der Trittplatte 7 fest verbunden, beispielsweise vernietet.In the region of the pivot axis Q2, the bearing piece 14 or 14 'points symmetrically to Half-shell-shaped recesses 16a, 16b formed in the longitudinal center plane, in which the actuating arms 5a, 5b of the brake levers 4a, 4b with their towards the longitudinal center plane bent ends 17a, 17b are mounted. These half-shell-shaped recesses 16a, 16b are flared towards the center of the ski, so that between the ends 17a, 17b and these recesses 16a, 16b an exemption is formed, the lateral Allows pivoting movement of the brake levers 4a, 4b. Furthermore, the half-shell-shaped recesses 16a, 16b forward projections 18a, 18b, which are fitted in corresponding recesses 19a, 19b of the tread plate. The bearing piece 14 or 14 'is firmly connected to the tread plate 7, for example riveted.

    Die umgebogenen Enden 17a, 17b der Betätigungsarme 5a, 5b sind in bekannter Weise über eine symmetrisch zur Längsmittelebene angeordnete Feder 20 so miteinander verbunden, daß die Bremsarme 6a, 6b der Bremshebel 4a, 4b seitlich auseinandergedrängt werden. Bei den hier gezeigten Ausführungsformen ist die Feder 20 eine Schraubenfeder, welche die zwischen den halbschalenförmigen Ausnehmungen 16a, 16b liegenden Abschnitte der Enden 17a, 17b umschließt und seitlich durch die halbschalenförmigen Ausnehmungen 16a, 16b in Position gehalten wird. An Stelle dieser Feder 20 kann jedoch auch jedes andere federnde Element verwendet werden.The bent ends 17a, 17b of the actuating arms 5a, 5b are in a known manner a spring 20 arranged symmetrically to the longitudinal center plane is connected to one another in such a way that the brake arms 6a, 6b of the brake levers 4a, 4b are pushed apart laterally. The ones here In the embodiments shown, the spring 20 is a coil spring, which extends between the portions of the ends 17a, 17b lying in the form of half-shells 16a, 16b encloses and laterally in position by the half-shell-shaped recesses 16a, 16b is held. Instead of this spring 20, however, any other resilient element can be used.

    Im Bereich der Schwenkachse Q4 sind an der Trittplatte 7 symmetrisch zur Längsmittelebene angeordnete, konkav gekrümmte seitliche Führungen 21a, 21b vorgesehen, welche durch je eine nach hinten führende Verlängerung 22a, 22b des Lagerstücks 14, 14' begrenzt sind. In diesen gekrümmten Führungen 21a, 21b sind bolzenförmige Vorsprünge 23a, 23b gelagert, die seitlich an dem Verbindungsstück 9 ausgebildet sind und durch welche die Schwenkachse Q4 festgelegt ist. Das Verbindungsstück 9 ist somit begrenzt längsverschieblich und schwenkbar an der Trittplatte 7 gelagert. Die genaue Funktionsweise dieser Lagerung wird weiter unten in bezug auf den Einziehvorgang der Bremshebel 4a, 4b näher erläutertIn the area of the pivot axis Q4 on the tread plate 7 are symmetrical to the longitudinal center plane arranged, concavely curved side guides 21a, 21b provided, which by each a rearward extension 22a, 22b of the bearing piece 14, 14 'are limited. In these curved guides 21a, 21b are bolt-shaped projections 23a, 23b, which are formed laterally on the connecting piece 9 and through which the pivot axis Q4 is set. The connector 9 is thus limited longitudinally displaceable and pivotable mounted on the tread plate 7. The exact functioning of this storage is described below in with reference to the retraction of the brake levers 4a, 4b explained in more detail

    Zu beiden Seiten der halbschalenförmigen Ausnehmungen 16a, 16b, bzw. der Führungen 21a, 21b ist die Trittplatte 7 durch Seitenwände 24a, 24b begrenzt, welche nach unten angeformte Vorsprünge 25a, 25b aufweisen. Die Seitenwände 24a, 24b sind unter anderem zur seitlichen Abstützung der Betätigungsarme 5a, 5b unmittelbar vor dem Einziehen der Bremshebel 4a. 4b vorgesehen (vgl. Fig. 3), wogegen die nach unten angeformten Vorsprünge 25a, 25b in der Fahrtstellung eine definierte Abstützung der Trittplatte 7 an dem Ski 3 ermöglichen (vgl. Fig. 4). On both sides of the half-shell-shaped recesses 16a, 16b, or the guides 21a, 21b, the tread plate 7 is delimited by side walls 24a, 24b, which are integrally formed on the bottom Have projections 25a, 25b. The side walls 24a, 24b are among others for the side Support of the actuating arms 5a, 5b immediately before the brake levers 4a are pulled in. 4b provided (see FIG. 3), whereas the projections 25a, 25b formed downward in the Enable a defined support of the step plate 7 on the ski 3 in the driving position (cf. Fig. 4).

    Die Lagerung der Bremshebel 4a, 4b an der Grundplatte 2 erfolgt mittels je einer quer zur Längsrichtung entlang der Schwenkachse Q1 vorgesehenen Bohrung 26a, 26b, in welcher je ein Bremshebel 4a, 4b in bekannter Weise über einen quer zum Ski umgebogenen Lagerabschnitt 27a, 27b, der den Betätigungsarm 5a, 5b mit dem Bremsarm 6a, 6b verbindet, gelagert ist. Durch diese Lagerabschnitte 27a, 27b ist die Schwenkachse Q1 der Bremshebel 4a, 4b festgelegt. Die Bohrungen 26a, 26b sind sowohl nach innen als auch nach außen hin mit konischen Erweiterungen 28a, 28b, 29a, 29b versehen, welche eine gewisse Verschwenkbarkeit der Bremshebel 4a, 4b quer zum Ski erlauben. Zusätzlich erfüllen diese Erweiterungen 28a, 28b, 29a, 29b die Aufgabe, Vereisungen dieser Lagerstellen durch möglichst geringe Lagerflächen zu verhindern.The brake levers 4a, 4b are mounted on the base plate 2 by means of one each transverse to Longitudinal direction along the pivot axis Q1 provided bore 26a, 26b, in which each a brake lever 4a, 4b in a known manner via a bent across the ski Bearing section 27a, 27b, which connects the actuating arm 5a, 5b to the brake arm 6a, 6b, is stored. Due to these bearing sections 27a, 27b, the pivot axis Q1 is the brake lever 4a, 4b. The bores 26a, 26b are both inward and outward conical extensions 28a, 28b, 29a, 29b provide a certain Allow pivoting of the brake levers 4a, 4b across the ski. In addition, they meet Extensions 28a, 28b, 29a, 29b the task of freezing these bearings through to prevent the smallest possible storage space.

    Im Bereich hinter und unterhalb der nach außen führenden konischen Erweiterungen 28a, 28b der Bohrungen 26a, 26b weist die Grundplatte 2 je eine seitlich angeformte Nase 30a, 30b auf, welche zur seitlichen Abstützung der Bremshebel 4a, 4b in deren Bremsstellung und zur seitlichen Führung dieser Bremshebel 4a, 4b in Abstand von dem Ski 3 während der Schwenkbewegung von der Fahrt- in die Bremsstellung dienen. Durch diese Führung der Bremshebel 4a, 4b über die Nase 30a, 30b während der oben genannten Schwenkbewegung ist gewährleistet, daß die Bremsarme 6a, 6b der Bremshebel 4a, 4b erst dann eingezogen werden können, wenn sie sich oberhalb der durch die Skioberfläche festgelegten Ebene befinden, sodaß jede Kollision der Bremsarme 6a, 6b mit dem Ski 3 verhindert wird.In the area behind and below the conical extensions 28a, 28b leading to the outside of the bores 26a, 26b, the base plate 2 each has a laterally formed nose 30a, 30b, which for lateral support of the brake levers 4a, 4b in their braking position and lateral guidance of these brake levers 4a, 4b at a distance from the ski 3 during the Serve swivel movement from the travel to the braking position. By leading the Brake lever 4a, 4b over the nose 30a, 30b during the above-mentioned pivoting movement ensures that the brake arms 6a, 6b of the brake levers 4a, 4b are only retracted can, if they are above the level defined by the ski surface, so every collision of the brake arms 6a, 6b with the ski 3 is prevented.

    Im Bereich der Schwenkachse Q1 ist -von der Seite betrachtet- im wesentlichen oberhalb der Bohrung 26a, 26b an der Grundplatte 2 weiters ein Anschlag 31a, 31b zur Begrenzung der Aufstellbewegung der Bremshebel 4a, 4b in deren Bremsstellung angeordnet, welcher mit den Betätigungsarmen 5a, 5b dieser Bremshebel 4a, 4b zusammenwirkt.In the area of the pivot axis Q1, viewed from the side, is essentially above the Bore 26a, 26b on the base plate 2 further a stop 31a, 31b to limit the Installation movement of the brake levers 4a, 4b arranged in their braking position, which with the Operating arms 5a, 5b this brake lever 4a, 4b cooperates.

    In den Figuren 6 und 7 ist die Trittplatte 7 einer erfindungsgemäßen Skibremse 1 in einem Längsmittelschnitt und einer Ansicht von hinten dargestellt. Zusätzlich zu den bereits oben erläuterten Merkmalen der Trittplatte 7 sind in diesen Figuren zwei symmetrisch angeordnete, in Längsrichtung ausgerichtete und bezüglich der Vertikalen geneigte Führungsflächen 32a, 32b zu sehen, welche an den Seitenwänden 24a, 24b der Trittplatte 7 entspringen und in Richtung Längsmittelebene schräg nach oben führen. Diese Führungsflächen 32a, 32b sind im hinteren Teil der Trittplatte 7 ausgebildet und wirken beim Übergang in die Fahrtstellung mit den Betätigungsarmen 5a, 5b der Bremshebel 4a, 4b so zusammen, daß diese seitlich in Richtung Skimitte versetzt werden (vgl. Fig. 3 und 5). 6 and 7, the tread plate 7 of a ski brake 1 according to the invention is in one Longitudinal center section and a view from the rear. In addition to the ones above explained features of the tread plate 7 are two symmetrically arranged, longitudinally aligned and inclined with respect to the vertical guide surfaces 32a, 32b can be seen, which arise on the side walls 24a, 24b of the tread plate 7 and in Lead diagonally upwards in the direction of the longitudinal median plane. These guide surfaces 32a, 32b are in the rear part of the tread plate 7 and participate in the transition to the driving position the operating arms 5a, 5b of the brake levers 4a, 4b together so that they laterally in Be shifted towards the center of the ski (see Fig. 3 and 5).

    Weiters ist an der Trittplatte 7 im hinteren Endabschnitt eine Ausnehmung 33 vorgesehen, in welcher die nach hinten führenden Fortsetzungen 22a, 22b des Lagerstücks 14 bzw. 14' eingepaßt und miteinander verbunden sind.Furthermore, a recess 33 is provided on the tread plate 7 in the rear end section which the rearward extensions 22a, 22b of the bearing piece 14 and 14 ' fitted and connected together.

    Im folgenden wird noch die Funktionsweise der erfindungsgemäßen Skibremse, insbesondere das in den Figuren 2 bis 5 dargestellte Einziehen der Bremshebel, näher erläutert.The mode of operation of the ski brake according to the invention is described below, in particular the retraction of the brake levers shown in Figures 2 to 5 explained in more detail.

    In der in Figur 1 bzw. 1a dargestellten Bremsstellung der Skibremse 1 ist die Trittplatte 7 durch die Kraft der Torsionsfedern 10a, 10b nach oben belastet, wobei das Gleitstück 13, mittels welchem die Federkraft auf die Trittplatte 7 übertragen wird, an dem vorderen Ende der Gleitfläche 15 bzw. an dem geneigten Abschnitt 15'b der Gleitfläche 15' angreift. Die Betätigungsarme 5a, 5b der Bremshebel 4a, 4b sind in dieser Stellung durch die Wirkung der Torsionsfedern 10a, 10b mit den Anschlägen 31a, 31b der Grundplatte 2 in Anlage gebracht, sodaß sie in Längsrichtung des Ski eine stabile Lage einnehmen. Die Bremsarme 6a, 6b der Bremshebel 4a, 4b sind in dieser Stellung durch die Feder 20 seitlich auseinandergedrängt und durch die Nasen 30a, 30b der Grundplatte 2 seitlich abgestützt, sodaß auch eine stabile seitliche Lage der Bremshebel 4, 4b gewährleistet ist. Die in der gekrümmten Führung 21a, 21b geführten bolzenförmigen Vorsprünge 23a, 23b des Verbindungsstückes 9 befinden sich, wie in Figur 1 zu sehen ist, in ihrer hinteren Anschlagstellung.In the braking position of the ski brake 1 shown in FIGS. 1 and 1a, the tread plate is 7 is loaded upwards by the force of the torsion springs 10a, 10b, the slider 13, by means of which the spring force is transmitted to the tread plate 7 at the front end the sliding surface 15 or on the inclined portion 15'b of the sliding surface 15 '. The Operating arms 5a, 5b of the brake levers 4a, 4b are in this position by the action of Torsion springs 10a, 10b brought into abutment with the stops 31a, 31b of the base plate 2, so that they occupy a stable position in the longitudinal direction of the ski. The brake arms 6a, 6b of the Brake levers 4a, 4b are pushed apart laterally in this position by the spring 20 and supported laterally by the lugs 30a, 30b of the base plate 2, so that a stable one lateral position of the brake levers 4, 4b is guaranteed. Those in the curved guide 21a, 21b guided pin-shaped projections 23a, 23b of the connecting piece 9 are located, as can be seen in Figure 1, in its rear stop position.

    Wenn ein Skischuh in die Skibindung eingesetzt wird, so gelangt die Skibremse 1 von ihrer Bremsstellung vorerst in die in den Figuren 2 und 3 darbestellte niedergeschwenkte Lage. Dabei wird die Trittplatte 7 in Richtung Ski 3 nach unten gedrückt, wobei die Bremshebel 4a, 4b um die Achse Q1 und das Verbindungsstück 9 um ihre Lagerabschnitte 27a, 27b bzw. die Achse Q3 in Richtung Skioberfläche verschwenkt werden, bis die in den Figuren 2 und 3 dargestellte Lage erreicht ist. Während dieser Schwenkbewegung gleitet das Gleitstück 13 aus der vorderen Endstellung entlang der Gleitfläche 15 bzw. 15' des Lagerstücks 14 bzw. 14' nach hinten, wodurch sich die Wirkung der Torsionsfedern 10a, 10b in dem hinteren Bereich der Trittplatte 7 verstärkt. Bei der in Figur 1a dargestellten Ausführungsvariante der Gleitfläche 15' wird das Gleitstück 13 in dieser Phase der Bewegung von dem bezüglich der Trittplatte 7 geneigten Abschnitt 15'b bis zu dem hinteren, im wesentlichen parallel zu der Trittplatte 7 verlaufenden Abschnitt 15'c des Lagerstücks 14' geführt.When a ski boot is inserted into the ski binding, the ski brake 1 is released from it Braking position initially in the lowered position shown in Figures 2 and 3. The tread plate 7 is pressed down towards the ski 3, the brake levers 4a, 4b about the axis Q1 and the connector 9 about their bearing portions 27a, 27b and the Axis Q3 can be pivoted in the direction of the ski surface until that in FIGS. 2 and 3 shown position is reached. During this pivoting movement, the slider 13 slides out the front end position along the sliding surface 15 or 15 'of the bearing piece 14 or 14' rear, whereby the effect of the torsion springs 10a, 10b in the rear area of the Step plate 7 reinforced. In the embodiment variant of the sliding surface 15 'shown in FIG. 1a in this phase of movement, the slider 13 is moved from that with respect to the tread plate 7 inclined section 15'b to the rear, substantially parallel to the tread plate 7 extending section 15'c of the bearing piece 14 '.

    In der in Figur 2 und 3 gezeigten Stellung der Skibremse 1 sind die Bremsarme 6a, 6b der Bremshebel 4a, 4b bereits so weit nach oben verschwenkt, daß sie sich -von der Seite gesehenoberhalb der Skioberfläche befinden und im wesentlichen parallel zu dieser ausgerichtet sind. In dieser Position sind die Bremsarme 6a, 6b der Bremshebel 4a, 4b, die nicht mehr durch die Nasen 30a, 30b seitlich abgestützt sind, durch die Feder 20 seitlich auseinandergedrängt und an den Seitenwänden 24a, 24b der Trittplatte 7 abgestützt, sodaß auch in dieser Phase eine stabile seitliche Lage der Bremshebel 4a, 4b gewährleistet ist. Weiters ist in Figur 2 zu sehen, daß die bolzenförmigen Vorsprünge 23a, 23b des Verbindungsstückes 9 aus ihrer hinteren Anschlagstellung entlang der konkav gekrümmten Führungen 21a, 21b etwas nach vorne geführt sind. In der gezeigten Stellung stehen die in Figur 6 und 7 zu sehenden Führungsflächen 32a, 32b der Trittplatte 7 im Bereich ihrer unteren Endabschnitte mit den Betätigungsarmen 5a, 5b in Anlage, ohne jedoch daran im Sinne einer Kraftausübung in Richtung Skimitte zu wirken.In the position of the ski brake 1 shown in FIGS. 2 and 3, the brake arms 6a, 6b are the Brake levers 4a, 4b have already been pivoted so far up that they are seen from the side above the ski surface and are aligned substantially parallel to this. In this position, the brake arms 6a, 6b of the brake levers 4a, 4b, which are no longer by the Lugs 30a, 30b are supported laterally, pushed apart laterally by the spring 20 and on supported the side walls 24a, 24b of the tread plate 7, so that a stable also in this phase lateral position of the brake lever 4a, 4b is guaranteed. It can also be seen in FIG. 2 that the bolt-shaped projections 23a, 23b of the connecting piece 9 from their rear Stop position along the concavely curved guides 21a, 21b slightly to the front are led. In the position shown are those shown in FIGS. 6 and 7 Guide surfaces 32a, 32b of the tread plate 7 in the region of their lower end sections with the Actuator arms 5a, 5b in the system, but without this in the sense of exerting a force in To work towards the center of the ski.

    Wird die Trittplatte 7, ausgehend von der in den Figuren 2 und 3 gezeigten nidergeschwenkten Lage, durch den Skischuh weiter in Richtung Skioberfläche nach unten gedrückt, so gelangt die Skibremse 1 in die in den Figuren 4 und 5 gezeigte Fahrtstellung, in welcher die Bremsarme 6a, 6b der Bremshebel 4a, 4b bezüglich ihrer nidergeschwenkten Lage seitlich in Richtung Skimitte versetzt sind. Dieser Vorgang wird im allgemeinen als das Einziehen der Bremshebel bezeichnet und geht im wesentlichen folgendermaßen vor sich.The tread plate 7, starting from the low-pivoted shown in Figures 2 and 3 Position, pushed further down by the ski boot in the direction of the ski surface the ski brake 1 in the driving position shown in Figures 4 and 5, in which the brake arms 6a, 6b of the brake levers 4a, 4b laterally in the direction of their pivoted position Ski center are offset. This process is generally called retracting the brake lever denotes and essentially proceeds as follows.

    Vorerst stützt sich die Trittplatte 7 mit ihren nach unten ausgebildeten Vorsprüngen 25a, 25b an der Skioberfläche ab, sodaß die Trittplatte 7 und das Verbindungsstück 9 gegen die Kraft der Torsionsfedern 10a, 10b weiter in Richtung Ski nach unten gedrückt werden, bis die in Figur 4 und 5 gezeigte Endstellung erreicht ist. Die bolzenförmigen Vorsprünge 23a, 23b des Verbindungsstücks 9 sind dabei entlang der Führungen 21a, 21b bis in ihre vordere Endstellung gelangt. Durch die Kraftwirkung der Führungsflächen 32a, 32b an den Betätigungsarmen 5a, 5b der Bremshebel 4a, 4b werden die Bremsarme 6a, 6b gegen die Kraft der Feder 20 in Richtung Skimitte bewegt. Wie in Figur 5 zu sehen ist, sind die umgebogenen Enden 17a, 17b der Betätigungsarme 5a, 5b in dieser Endstellung zueinander geneigt, wodurch die Feder 20 unter Spannung steht und die Bremsarme 6a, 6b sogleich nach Entlasten der Trittplatte 7 durch den Skischuh wieder auseinanderdrängt. Um den Bremshebeln 4a, 4b die erforderliche seitliche Schwenkbewegung zu ermöglichen, sind die halbschalenförmigen Ausnehmungen 16a, 16b des Lagerstücks 14, 14' in Richtung Skimitte mit einer konisch erweiterten Freistellung versehen. Ebenso haben die konischen Erweiterungen 28a, 28b, 29a, 29b der Bohrungen 26a, 26b vor allem anderem die Aufgabe, die für das Schwenken der Bremshebel 4a, 4b nötige Bewegungsfreiheit zu ermöglichen, wobei der Lagerabschnitt 27a, 27b dieser Bremshebel 4a, 4b so gebogen ist, daß im Lauf des Einziehvorganges ein reibungsfreies Gleiten der Lagerabschnitte 27a, 27b in den zugehörigen Bohrungen 26a, 26b möglich ist.For the time being, the tread plate 7 is supported with its downward projections 25a, 25b on the ski surface, so that the tread plate 7 and the connector 9 against the force of the torsion springs 10a, 10b are pressed further down in the direction of the ski until the in Figures 4 and 5 shown end position is reached. The bolt-shaped projections 23a, 23b of the Connection piece 9 are along the guides 21a, 21b to their front end position reached. Due to the force of the guide surfaces 32a, 32b on the actuating arms 5a, 5b of the brake levers 4a, 4b, the brake arms 6a, 6b against the force of the spring 20 in Moved towards the middle of the ski. As can be seen in FIG. 5, the bent ends are 17a, 17b of the actuating arms 5a, 5b inclined to one another in this end position, as a result of which the spring 20 is under tension and the brake arms 6a, 6b immediately after releasing the tread plate 7 pushing the ski boot apart again. To the brake levers 4a, 4b the required lateral To enable pivoting movement, the half-shell-shaped recesses 16a, 16b of the Bearing piece 14, 14 'in the direction of the ski center with a conically extended exemption. Likewise, the conical extensions 28a, 28b, 29a, 29b of the bores 26a, 26b everything else, the task necessary for pivoting the brake levers 4a, 4b To allow freedom of movement, the bearing portion 27a, 27b of this brake lever 4a, 4b is bent so that smooth sliding of the Bearing sections 27a, 27b in the associated bores 26a, 26b is possible.

    Beim Aussteigen mit dem Skischuh aus der Skibindung wird die Skibremse 1 wieder von ihrer Fahrtstellung in die Bremsstellung gebracht, wobei der oben beschriebene Vorgang in umgekehrter Reihenfolge durchlaufen wird. When getting out of the ski binding with the ski boot, the ski brake 1 is released from it Driving position brought into the braking position, the process described above in in reverse order.

    Abschließend ist anzumerken, daß eine erfindungsgemäße Skibremse anhand einer Reihe weiterer Ausführungsformen realisiert werden kann. Insbesondere ist die Ausbildung der Federkraft nicht an eine Torsionsfeder gebunden und kann auch an anderen als den hier angegebenen Stellen in der Grundplatte angeordnet sein.In conclusion, it should be noted that a ski brake according to the invention based on a series further embodiments can be realized. In particular, the training of Spring force is not tied to a torsion spring and can also be used on other than the one here specified locations in the base plate.

    Claims (11)

    1. A ski brake adapted to assume an inactive position and an active position and comprising a base plate (2) adapted to be secured to a ski or a ski binding, brake levers (4a, 4b) each having a braking arm (6a,6b) and an actuator arm (5a,5b) and mounted on said base plate (2) at symmetric positions relative to the longitudinal center plane for rotation about an axis (Q1) extending substantially transversely of the ski, and a step plate (7) biased substantially upwards by at least one actuator spring (10a,10b) mounted in said base plate (2), and connected to said base plate (2) by a hinged connecting piece (9), said actuator arms (5a,5b) of said brake levers (4a,4b) being connected to said step plate (7), and said braking arms (6a,6b) of said brake levers (4a, 4b) being swivelled towards the longitudinal axis of the ski in said inactive position relative to their positioning in the active position, characterized in that said actuator spring (10a,10b) engages the bottom side of said step plate (7) via at least one extension arm (12a,12b) at a location spaced from said connecting piece (9) as viewed from the side, the engagement point of said extension arm (12a,12b) on said step plate (7) being longitudinally displaceable in response to rotation of said brake levers (4a,4b).
    2. A ski brake according to claim 1, characterized in that said extension arm (12a,12b) has its end engaging said step plate (7) provided with a slide element (13) taking support on a slide face (15,15') provided on the underside of said step plate (7).
    3. A ski brake according to claim 2, characterized in that said actuator spring (10a,10b) is composed of two helical torsion springs disposed at symmetric locations relative to the longitudinal center plane and mounted on a cross pin (8) disposed in said base plate (2), each said torsion spring being integrally formed with a respective extension arm (12a 12b) symmetrical to the longitudinal center plane, the ends of said extension arms (12a,12b) being bent transversely of the longitudinal axis of the ski and connected to one another by said slide element (13) preferably made of plastic material (figs. 3,5).
    4. A ski brake according to claim 2 or 3, characterized in that said slide face (15) is planar and extends substantially parallel to the top face of the step plate (7) (fig.1)
    5. A ski brake according to claim 2 or 3, characterized in that said slide face (15') has an inclined section (15'b) merging towards the rear with a section (15'c) extending substantially parallel to the top face of said step plate (fig. 1a).
    6. A ski brake according to claim 4 or 5, characterized in that said slide face (15,15') is formed on a bearing member (14,14') preferably made of metal and secured to said step plate (7) as by riveting at the bottom side thereof.
    7. A ski brae according to claim 6, characterized in that in a per se known manner said bearing member (14,14') is formed with two shell-shaped recessed portions (16a,16b) symmetric to the longitudinal center plane each for receiving therein the inwards bent end portion (17a,17b) of a respective one of said actuator arms (5a,5b), said inwards bent end portions (17a,17b) of said actuator arms (5a,5b) being interconnected in a per se known manner by a resilient connecting piece, preferably a spring (20) biasing said brake arms (6a,6b) of said brake levers (4a,4b) laterally outwards.
    8. A ski brake according to claim 1 or one of claims 6 or 7, wherein said connecting piece (9) is longitudinally slidable on said step plate (7), characterized in that said step plate (7) has lateral wall sections thereof formed with guide sections symmetric to the longitudinal center plane and of concave arcuate configuration with respect to said base plate (2), for guiding therein pin-shaped lateral projections (23a,23b) of said connecting piece (9), said guide sections (21a,21b) being each limited by a respective rear extension (22a,22b) formed on said bearing member (14) symmetric to the longitudinal center plane.
    9. A ski brake according to claim 1, wherein each brake lever (4a,4b) comprises a swivel bearing portion (27a,27b) extending substantially transversely of the longitudinal axis of the ski and interconnecting the respective actuator arms (5a,5b) and brake arms (6a,6b), characterized in that each swival bearing portion (27a,27b) in a per se known manner in a bore (26a,26b) provided in said base plate (2) transversely of the longitudinal axis of the ski and formed with conically flared portions (28a,28b;29a,29b) both in the direction of the longitudinal axis of the ski and in the direction of the outer lateral sides of the ski (figs.3,5).
    10. A ski brake according to claim 9, characterized in that said base plate (2) is formed adjacent said bores (26a,26b), preferably to the rear and below said bores, with laterally outwards projecting lugs (30a,30b) whereon said brake arms (6a,6b) are supported and guided (figs. 3,5).
    11. A ski brake according to any of claims 1 to 10, characterized in that said step plate (7) has its bottom side provided with inclined surfaces (32a,32b) cooperating with said actuator arms (5a,5b) of said brake levers (4a,4b), extending substantially in the longitudinal direction of the ski and obliquely upwards relative to the vertical in the direction towards the longitudinal axis of the ski, said inclined surfaces (32a,32b) acting to displace said brake levers (4a,4b) in the direction towards the longitudinal axis of the ski in the inactive position (fig. 7).
    EP94117504A 1993-12-10 1994-11-07 Skibrake Expired - Lifetime EP0657193B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    AT0250093A AT410757B (en) 1993-12-10 1993-12-10 ski brake
    AT2500/93 1993-12-10

    Publications (3)

    Publication Number Publication Date
    EP0657193A2 EP0657193A2 (en) 1995-06-14
    EP0657193A3 EP0657193A3 (en) 1995-08-16
    EP0657193B1 true EP0657193B1 (en) 1998-02-25

    Family

    ID=3535397

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP94117504A Expired - Lifetime EP0657193B1 (en) 1993-12-10 1994-11-07 Skibrake

    Country Status (5)

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    US (1) US5516141A (en)
    EP (1) EP0657193B1 (en)
    JP (1) JP2768642B2 (en)
    AT (1) AT410757B (en)
    DE (1) DE59405300D1 (en)

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    US20050121480A1 (en) * 2003-09-15 2005-06-09 Erik Cooley Systems and methods for providing a self-arresting device
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    US10589165B2 (en) * 2015-04-01 2020-03-17 Skiquicky, Inc. Snow sport equipment waxing device and method
    DE102019108350A1 (en) * 2019-03-29 2020-10-01 Marker Deutschland Gmbh Braking device

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    Also Published As

    Publication number Publication date
    JPH07194766A (en) 1995-08-01
    ATA250093A (en) 2002-12-15
    DE59405300D1 (en) 1998-04-02
    US5516141A (en) 1996-05-14
    EP0657193A3 (en) 1995-08-16
    AT410757B (en) 2003-07-25
    EP0657193A2 (en) 1995-06-14
    JP2768642B2 (en) 1998-06-25

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