EP2195103B1 - Snow-ski board with binding - Google Patents

Description

The invention relates to an arrangement of a snowboard with a binding with front and rear jaws, and a binding plate, wherein the binding plate has a central vertical bearing and at least one, preferably two horizontal bearings.

Arrangements with binding plates for fastening safety bonds on snow gliding boards and in particular skis have been known for some time. When referring to Schier, this includes all types of snow gliding boards.

• Die "Längsrichtung" entspricht der Richtung vom hinteren Ende des Schis zur Schispitze.
• "Horizontal" entspricht der Horizontalebene des flach auf seiner Lauffläche am Boden liegenden Schis.
• "Vertikal" entspricht der Richtung des Normalvektors auf die Horizontalebene.
• Als "Horizontallager" ist ein Lager definiert, welches horizontale Verschiebungen in Längsrichtung zulässt, vertikale Verschiebungen jedoch verhindert.
• Als "Vertikallager" ist ein Lager definiert, welches nur vertikale, jedoch keine horizontalen Verschiebungen zulässt.

For better understanding, the following terms are defined in advance:

• The "longitudinal direction" corresponds to the direction from the rear end of the ski to the ski tip.
• "Horizontal" corresponds to the horizontal plane of the ski lying flat on its tread on the ground.
• "Vertical" corresponds to the direction of the normal vector on the horizontal plane.
• A "horizontal bearing" is defined as a bearing which allows horizontal displacements in the longitudinal direction, but prevents vertical displacements.
• A "bearing" is defined as a bearing which only allows vertical but not horizontal displacements.

Conventional safety bindings usually consist of a front and a rear jaw, between which the ski boot is clamped. Bends the ski, which is unavoidable in normal use, so the distance between the two binding parts changes. As a result, the clamping force transmitted to the ski shoe varies greatly. In extreme cases, it may also happen that the distance between the two binding jaws becomes so large that the ski boot is no longer held in the binding. To avoid these effects, bonds have been mounted on rigid binding plates for some time. These are firmly attached to the ski and prevent deflection in the binding area.

Modern safety bindings have highly complex triggering mechanisms designed to prevent injuries. Also, these safety locks require a constant distance and constant clamping force to be able to act optimally. Again, rigid binding plates offer great advantages and ensure the best possible binding function, regardless of the current bending state of the ski.

A disadvantage of these rigid plates is that discontinuities occur in the bending line of the ski due to their high rigidity. This has a negative effect on the handling of the ski, as the free deflection of the ski is obstructed.

Remedy, for example, in the AT 302 130 published disk arrangement. Described is a rigid plate, which is provided by means of a horizontal arrangement of a fixed and a movable bearing at a distance from the ski. If the ski bends, neither the horizontal nor the vertical displacements are obstructed.

A disadvantage of this design according to the prior art is that it comes with the deflection of the ski to a horizontal displacement of the plate. This displacement is proportional to the deflection of the bend. In practice, depending on the deflection of the ski, so depending on the curve speed and curve radius, the positioning of the driver on the ski changes.

Also the WO 99/07450 shows a device with a binding plate for a ski, which is characterized in that the binding plate is rotatably mounted about an axis, preferably at its front end in the direction of travel, and with a device for limiting the stroke of the binding plate, with respect to which the binding plate is longitudinally displaceable, is provided. Furthermore, a suspension is provided between binding plate and ski.

A disadvantage of this known construction on the one hand, the longitudinal displacement described above and on the other hand, the indirect application of force of the driver on the ski. Thus, the plate is arranged vertically movable against a spring. Depending on the driver's weight, driving speed and acceleration state, the spring is loaded differently. So it comes apart from the horizontal displacement, even to a largely independent of the ground vertical displacement. Another disadvantage of conventional safety bonds is the inaccurate adjustment possibility in the longitudinal direction. So it is usually the case that although the back-baking has a possibility for exact longitudinal positioning, but the toe is only gradually adjustable. In order to adjust the binding to a shoe size, in practice the toe piece is locked in a corresponding catch and then the buttocks are delivered exactly. Stepless positioning is therefore not possible. This is in the US 5671939 disclosed.

The object of the present invention is to provide an arrangement of snow sliding board, in particular ski, binding and a binding plate, which allows an exact positioning of the force application point above the binding mounting point, which keeps this positioning regardless of the current bending state of the ski and thereby the free deflection of the ski not disabled.

This object is solved by claim 1.

Spindles rotatably mounted about their axis of rotation are preferably provided both in the rear jaw and in the front jaw, said spindles projecting with their threads into spindle recesses of the binding plate. The front spindle and the rear spindle may be rotatably arranged separately from each other or connected to each other to rotate. For connected spindles, it may be advantageous if the front and rear spindles have opposing threads. The binding jaws may be fixable to the binding plate with a clamping mechanism. Preferably elastic end caps are provided between the binding plate and the ski, wherein the end caps are provided for influencing the bending line of the ski differently hard or their hardness are adjustable.

• Fig. 1 zeigt einen Schnitt einer erfindungsgemäßen Anordnung.
• Fig. 2 zeigt eine Aufsicht auf die Anordnung.
• Fig. 3 zeigt einen Schnitt einer schematischen Darstellung mit einer Bindung, einer Bindungsplatte und einem Schi.
• Fig. 4 zeigt den gleichen Schnitt wie Fig. 3 jedoch mit durchgebogenem Schi.
• Fig. 5 zeigt eine teilweise geschnittene schematische Vorderansicht einer erfindungsgemäßen Anordnung.
• Fig. 6 zeigt ein vergrößertes Detail des vorderen Bindungsbacken mit Bindungsplatte und Schi und in Fig. 7 ist eine Ausführungsvariante eines Horizontallagers dargestellt.
• Fig. 8 zeigt eine Ausführungsform der Anordnung mit verbundenen Spindeln.

The invention will now be described with reference to FIGS. 1 to 7 described in more detail.

• Fig. 1 shows a section of an inventive arrangement.
• Fig. 2 shows a plan view of the arrangement.
• Fig. 3 shows a section of a schematic representation with a binding, a binding plate and a ski.
• Fig. 4 shows the same cut as Fig. 3 but with bowed ski.
• Fig. 5 shows a partially sectioned schematic front view of an arrangement according to the invention.
• Fig. 6 shows an enlarged detail of the front binding jaws with binding plate and ski and in Fig. 7 a variant of a horizontal bearing is shown.
• Fig. 8 shows an embodiment of the arrangement with connected spindles.

Fig.1 shows an arrangement with a ski 1, a binding consisting of a toe 2 and a buttock 3, a binding plate 4, the front spindle 8 and the rear spindle 9, which engage in the spindle recesses 10, and the caps 5. Further can be seen the vertical bearing 6 and the two horizontal bearings. 7

In Fig.2 Shown are the ski 1, the binding plate 4, the pins 14 of the vertical bearing 6, the toe 2, the buttocks 3, the spindle recesses 10 and the closure caps. 5

For a better understanding of the arrangement according to the invention this is in Fig. 3 shown schematically. You can see the binding plate 4, the ski 1 and the horizontal bearings 7 and the vertical bearing. 6

The horizontal bearing has an upper rocker 11 and a lower rocker 13, which are interconnected by a hinge 12, wherein the lower rocker is screwed to the ski 1 fixed by means of screws 21 and the upper rocker 11 in the binding plate 4 along the direction of travel slidably but vertically guided.

The vertical bearing has in this embodiment two pins 14, which are screwed tightly to the ski by means of the screws 22 and project into the guide recesses 15 of the binding plate 4 ( Fig. 2 ). These recesses are designed such that the pins 14 are movable only in the vertical direction relative to the guide recesses, but have no degrees of freedom horizontally.

In Fig. 1, 2 are further drawn in the binding mounting point 16 and the force application point 17th
The binding mounting point 16 is specified by the ski and ideally should be introduced into this point, the resultant force of the driver. The force introduction point is the point of initiation of the resulting from the driver. Force and is determined by the positioning of the front and rear jaws. As a rule, this is close to the shoe center, the binding mounting point is in the narrowest side of the ski. Binding mounting point 16 and force introduction point 17 should therefore coincide, as in Fig. 1, 2 shown.

Fig. 4 illustrates the function of the arrangement according to the invention. Good to see the bowed ski 1 and the rigid binding plate 4. The pin 14 is only vertically displaced by the deflection of the ski in the guide recesses 15. The horizontal bearings, however, undergo a horizontal displacement by the relative change in length of the curved ski relative to the rigid plate. Furthermore, the upper and the lower rocker 11, 13 experience a relative rotation about the joint 12 to each other. This rotation is due to the fact that change by the bending line of the bent ski, the angle of the plate to the ski in the areas of horizontal bearings.

It should be noted that the force application point 17 is exactly above the binding mounting point 16, both in the bent and unbent state of the ski.

Fig. 5 shows a front view of an inventive arrangement with the ski 1 and the binding plate 4, wherein the binding plate longitudinal guide elements 18, in which the guide extensions 19 of the front and rear jaws 2, 3 protrude and thus allow a displacement of the binding elements 2, 3 only in the longitudinal direction. Also shown are the horizontal bearing 7 with the upper and lower Rocker 11, 13, the screws 21, with which the lower rocker is attached to the ski and the horizontal bearing guide extensions 23 which project into the Plattenführungsausnehmungen 24 and are arranged longitudinally displaceable in this. From the front spindle 8 of the adjusting head is shown.

Fig. 7 shows a horizontal bearing element with the lower rocker 13 which is articulated via the joint 12 with the upper rocker 11. The mounting on the ski, as already mentioned above, by means of the screws 22. The guide in the plate is ensured by the horizontal bearing guide extensions 23 and the corresponding, not shown here Plattenführungsausnehmungen 24 of the binding plate 4.

Fig. 8 shows a representation analog Fig. 1 , the difference being that the spindles 8, 9 of the front jaw 2 and rear jaw 3 are connected to each other via a connecting rod 26 to rotate. The spindles 8, 9 are in opposite directions. This makes it possible to adjust the binding by turning the adjusting screw on only one of the jaws on the desired shoe size, without adjusting the force application point 7. This is particularly advantageous when the binding often has to be adjusted to other shoe sizes and prevents mistakes in adjusting the binding by the assembly personnel.

All drawings are schematic and do not limit the invention. The average of the Fig. 5 single-layer structure of the ski can have any structure, be it as a sandwich construction, as a shell construction with foam core or other design.

Fig. 6 shows the binding area at the toe in longitudinal section. The parallel to the binding plate 4 lying spindle 8 has the thread 20, which engages in the spindle recesses 10 of the binding plate 4. The same arrangement may also be provided at the buttocks 3, as is to Fig. 8 is described.

Claims (9)

1. Arrangement of a snow-ski board (1) with a binding having front (2) and back jaws (3) and a binding plate (4), wherein the binding plate (4) has a central vertical bearing (6) and at least one horizontal bearing (7), and a binding mounting point (16) is provided on the snow-ski board (1) and a force application point (17) which is dependent on the binding is provided on the binding plate (4), characterized in that both the front jaws (2) and also the back jaws (3) are arranged so that they can be displaced seamlessly in a rail-like manner in the longitudinal direction by means of guide extensions (19) in longitudinal guide elements (18) of the binding plate and can be fixed on the binding plate, so that the force application point (17) can be set and fixed on the binding mounting point (16) and that the force application point (17) is maintained on the binding mounting point (16) independently of the snow-ski board bending.
2. The arrangement according to any one of claims 1 to 10, characterized in that the binding plate (4) has two horizontal bearings (7).
3. The arrangement according to claim 1, characterized in that spindles (8, 9) mounted rotatably in the back jaws (3) and also in the front jaws (2) are provided which project with their thread (20) in spindle recesses (10) of the binding plate.
4. The arrangement according to any one of claims 1 to 3, characterized in that the front spindle (8) and the rear spindle (9) are arranged rotatably separate from one another.
5. The arrangement according to any one of claims 1 to 3, characterized in that the spindles (8, 9) are connected for rotation, preferably by means of a connecting rod (26).
6. The arrangement according to any one of claims 1 to 5, characterized in that the front and rear spindles (8, 9) have opposite threads (10).
7. The arrangement according to any one of claims 1 to 6, characterized in that the binding jaws (2, 3) can be fixed by means of a clamping mechanism on the binding plate.
8. The arrangement according to any one of claims 1 to 7, characterized in that elastic end caps (5) are provided between the binding plate (4) and the snow-ski board (1).
9. The arrangement according to any one of claims 1 to 8, characterized in that the end caps (5) are provided to be variously hard or their hardness is adjustable to influence the bending line of the snow-ski board.

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