EP1900400B1 - Boot fixing device on the heel of a ski binding with resistance path formed as external shell on the rotation axis - Google Patents

Abstract

The shoe fixing device (4) has the double arm lever (16) pivoted to a connecting rod (12), which is inserted into the mounting arrangement (3) in form-fit and torque-proof manner and the slide path (18) is formed as outer circumference of a sleeve (17), which is arranged in torque proof manner with an inner circumference irregular in the cross section on a suitably formed segment of the outer circumference of the connecting rod.

Description

• einem Sohlenhalter, der an einer auf den Ski montierbaren Lageranordnung um eine Querachse zwischen einer ein Sohlenende des Skischuhs um- bzw. übergreifenden Einspannlage und einer das Sohlenende freigebenden Auslöselage schwenkbar angeordnet ist und ein freies Ende eines um die Querachse schwenkbaren Doppelarmhebels bildet, und
• einem am bzw. im sohlenhalterfernen Arm des Doppelarmhebels in Längsrichtung dieses Armes verschiebbar angeordneten Kolben bzw. Schieber, welcher durch Federkraft gegen eine zur Querachse exzentrische, relativ zur Lageranordnung stationäre Kulissenbahn gespannt ist, die zwei voneinander durch einen Kulminationspunkt getrennte Abschnitte aufweist, wobei der Schieber bzw. Kolben bei Anlage am einen Abschnitt ein den Doppelarmhebel in Richtung der Einspannlage des Sohlenhalters drängendes Drehmoment erzeugt und bei Anlage am anderen Abschnitt eine Hemmung des Doppelarmhebels bewirkt.

The invention relates to a - especially heel side - shoe holder assembly of a ski binding with

• a sole holder which is pivotally mounted on a mountable on the ski bearing assembly about a transverse axis between a sole end of the ski over or over clamping position and the sole end releasing release position and forms a free end of a pivotable about the transverse axis Doppelarmhebels, and
• a displaceably arranged on or in the sole holder arm of the double-armed lever in the longitudinal direction of this arm piston or slide, which is tensioned by spring force against an eccentric to the transverse axis, relative to the bearing assembly stationary slide track having two separate from each other by a culmination point sections, wherein the slide or piston on contact at one section generates a double arm lever in the direction of the clamping position of the sole holder urging torque and causes an abutment of the double-arm lever when resting on the other section.

Such shoe holder assemblies are available for holding the heel end of a ski boot on the market, for example by DE-U-1 986 426 is such an aggregate known. The comparatively simple construction is advantageous. In addition, the function is readily visible, so that such shoe holder units can be used by virtually anyone.

Usually with vertical distance below the sole holder at the sole holder side arm of the double-armed lever, a so-called tread spur is arranged, which is inevitably depressed when entering the binding with the facing end of the ski boot sole, so that the double-armed lever with the sole holder from the occupied at the entrance release position in the Chucking position is adjusted. Thus, there is a so-called step-in function. If excessive disturbing forces act on the ski boot, the ski boot can move the sole holder from the clamping position into the release position and thus be released from the ski. As long as the disturbance forces remain low, the double arm only moves within a so-called. Elastic region, the slider or piston on the link path has a more or less large distance from the culmination point and constantly in contact with a section remains, so that the double arm a torque occurs in the direction of the clamping position and the ski boot is returned to its desired position on the ski. For the tripping characteristic or the elasticity behavior, the shape of the slide track and the spring force acting on the piston or slide are the determining factors in the first place. In principle, it is desirable that the piston or slide must perform a comparatively large movement stroke, if he the culmination point moves over when adjusting the double-arm lever from the clamping position in the release position. For such a large movement stroke, it is necessary that the slide track at least partially has a large distance from the transverse axis about which the double arm pivots when triggering the shoe holder assembly.

The object of the invention is therefore to allow for a shoe holder assembly of the type specified in such a trained slide track with simple construction and manufacturability of the shoe holder assembly.

This object is achieved in accordance with the invention in that the double-arm lever is pivotally mounted on a plug-in shaft which is positively and rotatably insertable in the bearing arrangement and the slide track is formed on the outer circumference of a sleeve which is non-rotatably arranged with a non-circular inner circumference on a suitably shaped portion of the outer circumference of the plug-in axle ,

The invention is based on the general idea to use a pivot axis for the double-arm lever on the bearing assembly serving axle also for holding a link path having the element. By now this element is formed as penetrated by the plug-in axis sleeve, there is a high design freedom in the design and dimensioning of the slide track, in particular, the sleeve may have a significantly different from the cross section of the plug axis outer cross section, ie in the configuration of the cross section of the sleeve and thus the form The slide track needs to be taken virtually no consideration for the dimensioning and shape of the bearing eyes or the like, which serve on the bearing assembly for receiving the thru-axle and whose cross-section more or less pretend. Finally, a simple assembly of the shoe holder assembly is achieved because the assembly of the slide track can be done easily together with the arrangement of the double-armed lever on the bearing assembly. It is also advantageous that the binding can be constructed of easily manufactured moldings, wherein the triggering behavior can be changed if necessary by changing the shape of the slide track having sleeve to ensure optimized for very athletic and / or relatively unsportsmanlike skier triggering.

According to a structurally preferred embodiment of the invention it is provided that the double-armed lever is pivotally mounted between two fork-shaped bearing blocks of the bearing assembly on the plug axis, wherein the sleeve is mounted axially on the plug axis between two penetrated by the plug axis bearing eyes of the double-armed lever.

The axial locking of the plug-in axle on the bearing arrangement can be effected in that the plug-in axle is designed as a hollow axle and receives a fixing axis, at the protruding from the plug-in axis flange plates are fixed, which rest on opposite sides of the bearing blocks substantially free of play.

Moreover, with regard to preferred features of the invention to the claims and the following explanation of the drawing, reference is made to a particularly preferred embodiment of the invention will be described in more detail.

Protection is claimed not only for explicitly specified or illustrated combinations of features but in principle also for any sub-combinations of the illustrated or specified features.

Fig. 1

eine perspektivische Explosionsdarstellung eines erfindungsgemäßen fersenseitigen Sohlenhalters,

Fig. 2

einen vertikalen Mittellängsschnitt des erfindungsgemäßen Schuhhalteraggregates in Einspannlage,

Fig. 3

eine der Fig. 2 entsprechende Schnittdarstellung eines Zustandes innerhalb des Elastizitätsbereiches und

Fig. 4

eine der Fig. 2 entsprechende Schnittdarstellung der Freigabelage.

In the drawing shows

Fig. 1

an exploded perspective view of a heel-side sole holder according to the invention,

Fig. 2

a vertical central longitudinal section of the shoe holder assembly according to the invention in a clamping position,

Fig. 3

one of the Fig. 2 corresponding sectional view of a state within the elasticity range and

Fig. 4

one of the Fig. 2 corresponding sectional view of the release position.

On the top of a ski, not shown, an optionally integrated in the ski structure base plate is provided. At the rear end region of the base or base plate 1 in the longitudinal direction of the ski, elongated guide rails are arranged in the longitudinal direction thereof, which serves for the longitudinally displaceable mounting of a bearing arrangement 3 of a shoe holder assembly 4 heel-side in the example shown. The guide rails 2 have sideways guide webs, which are comprised of correspondingly shaped guide shoes 5 on the bearing assembly 3 substantially free of play. For positioning the bearing assembly 3 in the longitudinal direction of the guide rails 2 is a rotatably mounted on the underside of the bearing assembly 3 external thread screw 6, which engages with its external thread in a arranged on the top of the base plate 1 toothed belt between the guide rails 2, such that the external thread screw relative to rotation to the bearing assembly 3 in the toothed belt in the forward or backward direction (ie, in FIG Fig. 2 to the left or right) can be moved.

The external thread screw 6 has an axial extension 7, whose free end is provided with a Phillips or the like, so that there can set a suitably adapted screwing tool to rotate the external thread screw 6 to its axial adjustment in the toothed belt. The axial extension 7 passes through a corresponding bore in the lower region of the bearing assembly 3.

On the side facing away from the axial extension 7 end face of the external thread screw 6 is designed as a helical compression spring 7 arranged between a transverse web on the underside of the bearing assembly 3 and a supported on the end face of the external thread screw 6 and slidably guided on the underside of the bearing assembly 3 abutment plate 9 is clamped on pressure. Accordingly, the bearing assembly 3 on the guide rails 2 against the force of the starting spring 8 in Fig. 1 to be moved to the right. On the other hand, the starting spring is looking for 8 to move the bearing assembly 3 relative to the external thread screw 6 to the left in the direction of the facing end of the ski boot sole, so that the shoe holder assembly can interact with the facing sole end backlash on the one hand and on the other hand with flexing of the ski from the sole against the force of the starting spring 8 in Fig. 1 can be pushed to the right.

The bearing assembly 3 has two fork-shaped bearing blocks 10, each with a non-circular bearing eye 11. These bearing eyes 11 serve to receive a plug-in axis 12, whose end regions each have a corresponding bearing eye 11 corresponding cross-section, so that the plug-in axis 12 in the bearing eyes 11 non-rotatable by positive locking is held. For axial securing of the plug-in axis 12 in the bearing blocks 10, the plug-in shaft 12 is formed as a hollow axle so that they can receive a fixing axis 13 which is slightly longer than the plug-in axis 12, so that the ends of the fixing axis 13 project beyond the ends of the plug-in axis 12 slightly , On the ends of the fixing axis 13 can flange plates 14 fix, for example by riveting. These flange discs 14 are in the assembled state substantially free of play on the mutually remote flanks of the bearing blocks 10, so that the fixing axis 13 and the plug-in axis 12 are fixedly mounted on the bearing blocks 10 axially.

The plug-in axis 12 passes through on the one hand bearing eyes 15 of a pivotally mounted between the bearing blocks 10 Doppelarmhebels 16 and a sleeve 17 which has a non-circular cross-section of the plug-in axis 12 adapted inner cross section, so that the sleeve 17 is held non-rotatably on the plug axis 12 between the bearing lugs 15 of the double-armed lever 16, in the from the Fig. 2 to 4 apparent location.

The outer circumference of the sleeve 17 also has a non-circular cross section and forms a slide track 18, whose function will be explained below.

The double-arm 16 has a short arm with two sole holders 19, the heel-side sole end of a ski boot in the in Fig. 2 shown clamping position from above and laterally over or encompass. In addition, the short arm of the double-armed lever 16 is provided with a tread spur 20 on which the heel-side end of the ski boot is placed when entering the binding, so that the Doppelarmhebel 16 from the position of Fig. 4 in the location of Fig. 2 can be entered. The tread spur 20 also acts with projections on the bearing assembly 3 and on the facing sides of the bearing blocks 10 like a stop together, so that the Doppelarmhebel 16 only slightly above the in Fig. 2 shown position can be pivoted counterclockwise out.

The long arm of the Doppelarmhebels 16 forms a cylindrical guide for a piston 21, which is tensioned by a housed within the long arm of the double-armed lever 16 helical compression spring 22 against the sleeve 17 and the slide track 18 formed thereon. The tension of the helical compression spring 22 is adjustable. This serves a Adjusting screw 23 which is axially supported with a flange disposed on her axially on a corresponding bearing surface in the longer arm of the double-armed lever 16 and the screw head is accessible from outside the double-arm 16 and can be brought into engagement with a screwing. For this purpose, the screw head has a Phillips or the like. On the threaded portion of the adjusting screw 23, a female thread disc 24 is arranged, which move axially within the longer arm of the double-arm 16, but can not rotate. On the helical compression spring 22 facing side of the internally threaded disc 24, an abutment disc 25 is arranged. This has frontal jaws which engage in outer edge side recesses of the internally threaded disk 24. Incidentally, an extension 26 is arranged on the abutment disc 25, which engages in a coverable by a plate member 28 axial slot 27 in the wall of the longer arm of the double-armed lever 16 and thus the abutment disc 25 within the longer arm of the Doppelarmhebels 16 non-rotatably but axially slidably holds, wherein the abutment disc 25 at the same time also non-rotatably holds the internally threaded disc 24 coupled with it via the aforementioned claws. If the adjusting screw 23 is rotated, the internally threaded disk 24 and the abutment disk 25 inevitably shift on the threaded part of the adjusting screw 23 in the axial direction, so that the abutment disk 25 can be approximated more or less close to the piston 21 and the compressive stress of the helical compression spring 22 correspondingly is adjustable.

The illustrated shoe holder assembly 4 functions as follows:

When used in the binding ski boot of the double arm 16 has the Fig. 2 apparent position, wherein the sole holder 19 over the heel side sole edge of the ski boot from above and laterally over or around. When disturbing forces acting on the ski boot to lift the heel area of the ski boot off the ski are sought, the heel-side sole end seeks to move the sole holders 19 in the upward direction, pivoting the double-arm lever 16 clockwise. This has the consequence that the piston 21, according to Fig. 2 essentially rests flat on the slide track 18 when the shoe holder unit 4 in the Fig. 2 shown state against the force of the helical compression spring 22 is moved more or less far, in Fig. 3 For example, a slight displacement against the force of the helical compression spring 22 is shown. In such a situation, the piston 21 presses with a lateral bead 29 against a flattened portion of the slide track 18, so that a torque occurs, which the double arm 16 from the position of Fig. 3 in the location of Fig. 2 looking backwards. The in Fig. 3 shown state is still within the so-called. Elastic region, within which the shoe holder assembly 4 under the action of the helical compression spring 22 in the normal chuck position according to Fig. 2 able to reset.

If very large disturbing forces act on the ski boot for a sufficiently long period of time, the double-arm lever can 16 about the in Fig. 3 shown position out in the release position of Fig. 4 be moved, in which the piston 21 rests with a circular cross-section arcuate concave on a same radius of curvature having circular arc convex portion of the sleeve 17. In the state of Fig. 4 can the forces with which the piston 21 is tensioned by the helical compression spring 22 against the sleeve 17, no effect on the Doppelarmhebel 16 torque effect, but the pressure of the piston 21 on the sleeve 17 causes a significant adhesion between the piston 21 and sleeve 17, ie upon pivoting of the double-arm 16 occurs between the piston 21 and sleeve 17 a significant friction. This causes the condition of the Fig. 4 is held by self-locking. When the skier wants to get back into the bindings with the ski boot, he inevitably steps on the heel in the heel end Fig. 4 forwardly projecting tread spur 20, so that the double lever 16 again in the clamping position of Fig. 2 is brought.

The cover 28 may be formed transparent and combined with a scale which cooperates with the visible through the transparent cover 28 extension 26 of the abutment disc 25 on the screw 23. The position of the abutment disc 25 and the extension 26 on the aforementioned scale shows to which compressive stress the helical compression spring 22 has been adjusted by rotational adjustment of the adjusting screw 23. The scale can be calibrated to so-called Z values.

On a flat extension 30 of the bearing assembly 3 (see. Fig. 1 ), a conventional Skibremsaggregat (not shown) may be arranged, the brake arms are extended in the braking ineffective state of the side of the bearing blocks 10 in the ski longitudinal direction. Since the transverse spacing of the brake arms corresponds approximately to the width of the respective ski, a relatively large amount of installation space for the bearing arrangement 3 is available between the brake arms. In view of a high stability of the shoe holder assembly 4 thus the guide shoes 5 and the cooperating skiseitigen guide rails can have a large transverse distance, ie the bearing assembly has on the guide shoes 5 has a greater width than the thru axle 12th

Claims (5)

1. A shoe retaining aggregate, in particular a heel-side shoe retaining aggregate (4), of a ski binding having

   - heel-side sole retaining means (19) that are pivotally arranged on a bearing arrangement, which is mountable on the ski, being pivotable about a transverse axis between a clamped-in position encompassing or overlapping the heel-side sole-end of the ski boots and a release position releasing the sole end, and furthermore form a free end of a double armed lever (16) pivotable about the transverse axis, and

   - a piston or slider (21) displaceably arranged on or in the arm, which is distant from the sole retaining means, of the double armed lever (16), being displaceable in the longitudinal direction of this arm, said piston or slider being tensioned by means of spring force (22) against a stationary, relative to the bearing arrangement (3), sliding track (18) that is eccentric to the transverse axis, said sliding track having two sections separated from each other by a culmination point, wherein upon being positioned on one section, the slider or piston (21) generates a torque that presses the double armed lever (16) in the direction of the clamped-in position of the sole retaining means and furthermore effects a blocking of the double armed lever upon being positioned on the other section,

   characterised in that
   the double armed lever (16) is pivotally mounted on a half-shaft (12), which is insertable in the bearing arrangement (3) in a form-fitting and rotationally-fixed manner, and the sliding track is configured as an external circumference of a sleeve (17) that is arranged, in a rotationally fixed manner, with an interior circumference, which is non-circular in cross section, on a suitably shaped section of the external circumference of the half-shaft (12).
2. The shoe retaining aggregate as specified in claim 1,
   characterised in that
   the double-armed lever (16) is pivotally mounted between two bearing blocks (10), which are arranged in a fork-shaped manner, of the bearing arrangement (3) on the half-shaft (12).
3. The shoe retaining aggregate as specified in claim 1 or claim 2,
   characterised in that
   the bearing arrangement (3) has a larger width in the transverse direction on its bottom side than on the pivot bearing of the double-armed lever (16).
4. The shoe retaining aggregate as specified in claim 3,
   characterised in that
   the width of the bearing arrangement (3) on the bottom side corresponds to the transverse distance of the brake arms of a ski brake that can be arranged or attached to the bearing arrangement (3).
5. The shoe retaining aggregate as specified in any one of the claims 1 to 4,
   characterised in that
   the half-shaft (12) is configured as a hollow axis and furthermore receives a holding axis (13) that with flange discs (14) attachable on its ends rests against bearing block (10) sides that are directed away from one another as well as against the half-shaft (12) front faces that are directed away from one another.

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