EP1379317B1 - Device for connecting a training shoe to a gliding device - Google Patents

Description

The invention relates to a device for connecting a Sports shoe with a sliding device, in particular a ski binding for cross-country and touring skis with a step-in mechanism according to the preamble of claim 1.

Currently on the market common cross-country bindings are emerging through at the toe or minimally behind the toe lying rotary axes off. This results in an unnatural Rolling movement over the tilting edge formed under the toe, which requires increased effort and in addition Pain in the toe area (also "blue toes") can cause.

Furthermore, these systems are characterized in that the shoe mounted axle, of the ski binding by means of a kind Toggle is clamped between two metal shells. This connection is especially in the rolling position when occurring Transverse forces not rigidly positive, resulting in a compliance of the system and thus to reduced controllability of the Skis leads.

This disadvantage is when running as an automatic binding even more blatant, since the compression springs used in general less clamping forces than those used in manual systems Can apply toggle mechanism.

Another disadvantage of bonds currently used is in that the bolt cast in the shoe transversely to the in the Shoe sole is anchored to extending groove, thereby cleaning This is difficult in case of pollution or icing.

WO-A-8 400 498 also discloses a ski binding for cross-country and touring skis with a step-in mechanism.

Finally, by DE 3 141 425 a touring certain ski binding has become known, at the transverse to the ski longitudinal direction slidable stop pins in lateral recesses the shoe sole intervene in their lace area. At this Ski binding are the free ends of the locking bolt after a rotationally symmetrical Curve executed in all directions slightly overcoming the corresponding hole to enable of forces. This bond is thus a safety bond educated. The known safety bindings of described type are for Nordic sports, in particular Top sport, unsuitable.

The object of the invention is to provide a binding that also for nordic sports, especially top-level sport, suitable is.

This task is characterized by the measure according to the characterizing Part of claim 1 solved. A variant of the invention Embodiment recreates the measure claim 2.

In the drawings, embodiments of the invention Facility shown as cross-country skiing.

Fig. 1 eine Vorderansicht der Bindung mit der Schuhsohle, teilweise im Schnitt;

Fig. 2 eine Seitenansicht der Bindung mit der Schuhsohle im Spitzenbereich; die

Fig. 3 und 4 Detailansichten der Aussparungen in der Schuhsohle in Seiten- und Vorderansicht;

Fig. 3 eine vereinfachte Seitenansicht des Skischuhes;

Fig. 4 eine Rückansicht desselben; die

Fig. 5 eine Ansicht der Skibindung von unten;

Fig. 6 eine Seitenansicht derselben;

Fig. 7 einen Querschnitt der Bindung senkrecht zur Laufrichtung;

Fig. 8 und 9 Details der Bindung; und die

Fig. 10 eine dritte Ausführungsform der erfindungsgemäßen Langlaufbindung und zwar eine Druntersicht des Gehäuses der Skibindung;

Fig. 11 einen Deckel mit dem Schieber des Öffnungsmechanismus;

Fig. 12 den Öffnungsmechanismus;

Fig. 13 ein Detail des Öffnungsmechanismus;

Fig. 14 eine schaubildliche Darstellung der Bindung;

Fig. 15 ein weiteres Detail der Bindung;

Fig. 16 zeigt einen mittigen Längsschnitt des Bindungsteiles; und

Fig. 17 einen Schnitt nach der Linie XVII-XVII der Fig. 16.

Show it:

Fig. 1 is a front view of the binding with the shoe sole, partly in section;

Figure 2 is a side view of the binding with the shoe sole in the tip region. the

3 and 4 detail views of the recesses in the shoe sole in side and front view;

Fig. 3 is a simplified side view of the ski boot;

Fig. 4 is a rear view thereof; the

5 shows a view of the ski binding from below;

Fig. 6 is a side view thereof;

7 shows a cross section of the binding perpendicular to the direction of travel;

8 and 9 details of the binding; and the

10 shows a third embodiment of the cross-country binding according to the invention, namely a bottom view of the housing of the ski binding.

11 shows a lid with the slide of the opening mechanism;

Fig. 12 shows the opening mechanism;

Fig. 13 is a detail of the opening mechanism;

Fig. 14 is a perspective view of the binding;

Fig. 15 shows another detail of the binding;

Fig. 16 shows a central longitudinal section of the binding part; and

17 is a section along the line XVII-XVII of FIG. 16.

In FIGS. 1 and 2, 1 is a compression spring loaded Detent pin of a step-in mechanism called, which is about 1.5 cm is positioned behind the toe binding side.

Depending on a locking pin 1 is in each case an end of a extending transversely to the direction extending locking pin hole 7 of the Binding 20 according to the invention stored, which in a U-shaped Profile 11 is inserted, which in a corresponding recess 21 of the shoe sole 22 is embedded. The locking bolts 1 are provided with a rounding at their opposite ends, which lies above the plane passing through the longitudinal axis of the Bolzens and in the locked state parallel to the ski top runs. This ensures an entry from the top and a backlash-free movement possible, but an uncontrolled Opening the binding prevented.

The trained as a step-in mechanism entry mechanism is realized by compression spring loading of the locking pin 1, which in opposite, at the same time serving as a centering Einrastöffnungen 4 in the shoe sole 22 engage. For this purpose are in the present case, the locking pin 1 with a kugelkalottenartigen Rounding 5 provided, which when snapping the Shoe sole 22 in the binding under the influence of the on the latching openings 4 adjoining receding oblique outer walls 24 the force redirection from the vertical to the Take over horizontal.

Due to the precise matching of the two locking pins 1 and the latching openings 4 in the shoe sole 22 is a play-free Power transmission achieved, being an ergonomic, energy-saving Unrolling the foot in cross-country skiing is possible. Lifting the heel after the pressure application phase is noticeable more homogeneous and rounder. The force application can be more targeted for one effective kickoff.

The described positioning of the locking bolt 1, whose Rotary axis is designated 2, allows a rounding 3 of Shoe sole in toe area (similar to running shoes), which also walking (outside the bond) is facilitated.

Furthermore, by laying the fulcrum of the Distance of the shoe (when unrolled) to the ski reduced, which in turn reduces occurring moments (transverse to the ski axis). This both positively affects the life of shoe and Binding, as well as the controllability of the ski in the Swing phase out.

Advantageously, a plurality of juxtaposed Be provided openings. Such an embodiment shows the Fig. 3, in which latching openings 4 are provided, where Z is the toe joint is indicated. Hiebei can for example, the latching opening 4 'for sporty running, and the latch 4 "serve for departure.

In the locked state of the locking bolt 1 in the shoe sole 22 is the entire outer surface of the same on the entire surface the guide wall in the latching hole 4, whereby the previously mentioned play-free power transmission takes place.

Below the bore 7 for guiding the locking pins 1 and below the latching openings 4 is located in the binding 20th a transverse to the direction extending parallel to the Snap openings 4 located hole 8 to guide a Compression spring 6 for the locking pin 1. As power transmission elements and at the same time limiters of the detent pin movement serve vertically in the locking pin 1 pressed pins 9, between which a Compression spring 6 is installed.

By positioning the compression spring 6 in a separate Bore 8 below the locking pin 1 is the spring force for the Functioning of the system optimally adjustable, since initial length and spring diameter are freely adjustable in certain areas.

The trigger mechanism can be increased by two additional (less) spring-loaded bolts (referred to as tripping bolts 10 in sequence) be realized in the shoe sole 22. The Release bolts 10 are each by means of compression springs 12 in the direction pressed to the center line of the shoe sole 22. The compression springs 12 are each by a in each of the two holes 23rd pressed ring 13 held in position. A gradation 14 am Release bolt 10 prevents the escape of the same in the direction Mid-sole. These release bolts 10 close in not locked Position the Eintrastöffnungen 4 of the locking pin 1 in the Shoe sole 22. This will cause contamination of the snap-in openings largely prevented.

In locked position, the release bolt 10 of the locking pin 1 in the direction of the side of the shoe sole outside so far pushed out that opening the bond easily possible is. For this purpose, the forefoot is enclosed with the palm and the release bolt 10 with thumb and preferably index finger pressed. Now, a slight lifting of the toe is sufficient to be able to get out of the binding.

The shoe sole 22, preferably produced by injection molding, is in the area of the trigger mechanism by means of a inserted profile 11 reinforced. This takes the occurring Forces, whereby by the thus closed power flow the necessary strength of the shoe sole is achieved.

The described embodiment of the shoe sole 22 is the Entry even in difficult snow conditions without complex "free from snow" possible.

To nachvornekippen the shoe against the ski in the To prevent stepping and a progressive force increase to have a spring element, e.g. be present as a rubber component or damping element.

The damping element 15, preferably cold-resistant Elastomer, serves for pre-positioning of the shoe sole 22 during Entry into the binding. (The exact centering is done by the rounded stop pins 1.

Furthermore, by the damping element, the rotational movement of the Shoe controlled and limited.

Of course, within the scope of the invention, various constructive modifications are made. So is the Possibility of binding 20 as an integral part of Skis, in particular Länglaufskis to train.

Furthermore, the locking pin 1 and the release bolt 10th be reversed so that the locking bolts on the outside and the release bolts are located inside, but also the compression springs 6 and 12 need to be replaced so that the springs of the inside, spring-loaded bolts stronger than those of the spring-loaded outboard bolts are. In any case, stands the external, in the detent position outwardly projecting bolt in Contact with the inside, corresponding bolt.

In the case where the part 20 is designed as a binding, there is the possibility that the profile 11 as a pivoting part serves, which pivot about the locking pin 1 in the direction of rotation is.

The embodiment of the cross-country binding according to FIGS. 5 to 9 has a base plate to be fastened to the ski by means of screws 29, which with holes 41 for the fastening screws provided and, as shown in FIG. 5, forked with three prongs 29 ', 29 ", 29" 'is formed and for receiving a slider 42nd serves, which also forked but only with two prongs 43,43 'is formed between the prongs 29', 29 "or 29 ", 29" 'of the base plate 29 engage. The base plate 29 is in the rear area with a transverse to the direction extending Survey 45 provided in which the two over each other arranged channels or holes 7.8 are provided, of which the bore 7, the two coaxial locking pin. 1 leads, under the influence of in the underlying hole 8 guided compression spring 6 stand, which has the tendency to Stop bolt 1 for realizing the effect of the step-in mechanism to press one another. In the present case, the rounding runs 1 ', as shown in FIG. 7, arcuate up to lower generator 1 "of the locking pin 1. For the transmission of Force of the compression spring 6 on the locking pin 1 is in each of them the pin 9 is pressed, wherein the compression spring 6 between the clamped on both pins, and the tendency has the locking bolts 1 to press out of the holes 7 to the outside. For controlling the movement of the locking pins 1 are the lower ends of the pins. 9 led in scenes 28, which in the present case as angled, V-shaped, with the openings facing each other Slots in the base plate 29 are recessed. One with his Tines 43 ', 43' 'the central prong 29 "of the base plate 29 flanking Slider 42 is about a joint 30 with a shoe tip tilted lever 26 pivotally connected, which as Actuator serves to open the binding and join with a Bead of a knob or the like 40 is supported on an inclined plane 27 and a trough 106 for inserting the tip of the Skistockes. Like., If the binding is to open, provided is.

By applying an opening force in the direction of the arrow F _1, for example by means of the ski pole slides the actuator for the opening in the present case, the lever 26 on the inclined plane 27 toward the ski surface, causing the slider 42 moves forward and thus by means of the scenes 28 moves the pins 9 to each other and the locking pin 1 releases from the holes of the shoe sole. Here, the force required for entry F _{1 is} progressive, ie the force required to overcome the static friction is initially low and increases.

When the shoe enters the binding, the slider 42 not moved, only the locking pin 1 are by the bevel 1 'pushed back against the force of the compression spring 6, so that they're coming out of the access openings of the shoe sole.

The triggering mechanism in Fig. 8 shows another possibility the shaping for the backdrop 28. In this case, the Setting designed as a straight, slanted slot.

The triggering mechanism is embedded in an elastomeric member 15 and thereby against contamination, especially against icing, protected.

Of course, within the scope of the invention, various constructive modifications are made. So could in The shoe sole release bolts may be present under load of compression springs protrude outward and at the inner end of the Resting locking pin 1, and the holes that are used to hold the Stop bolts serve, in use when walking, so not in the assembled state on the ski, close it, allowing it to penetrate protected from ice, snow and dirt.

There may also be a lock, e.g. by a bell od. Like., Be installed, the unintentional opening of the bond prevented.

As shown in FIG. 9, instead of the through hole 8 for the compression spring 6, an end-side recess 8 'in the survey Od by milling or the. Like. Be formed.

Advantageously, the end rounded offsets extend the locking pin 1 preferably up to a maximum of one third the outstanding bolt length, which gives the advantage This prevents unintentional release of the bond becomes. There is also the possibility of such a rounding like 9 is to be formed as an inclined surface. Finally, there is the possibility of a rounding of the Bevel the end of the locking pin and the curves in To replace the claimed way by a flat, sloping surface.

In the embodiment of the cross-country binding according to FIG. 10 to 17 a binding housing is provided, which has an outer Housing 100 has, on both sides openings 103 for Receiving the locking pin 101 of the step-in mechanism has.

The case 100 of the cross-country binding sits on one on the ski for example screwed base plate 129, on which, like Figs. 11 and 12 show a slider 142 in the running direction slidably mounted, with one in the direction of travel obliquely upwardly projecting lever 130 via a transversely to the Running direction extending joint 130 'is connected, which, as shown in Fig. 14, one intended for entry Inclined surface 105, and a trough 106 for the pole insert has to open the bond.

To prevent the ingress of snow between base plate 129 and To prevent binding housing 100 is the former with a circumferential rib 107 provided, which in a corresponding groove 108th of the housing part 100 engages (Fig. 10 and 12).

The bolts 101 project on either side of the bond of each a shaped piece 109 (FIGS. 12, 13 and 15), which are shaped pieces are mirror images of both sides of the binding and are provided with a projection 110 which, like FIG. 13 shows, in a triangular opening 111 and 111 'of the slider 142 protrudes. The openings 111, 111 'are, as shown in FIG. 13 to is to take a lying transverse to the direction of the axis each other are arranged symmetrically opposite and each with a Guide surface 112 and 112 'are provided, at which the respective projection 110 of the shaped piece 109 is supported, wherein in Fig. 13 for clarity, only one of the two projections 110 is located.

The fittings 109 are each provided with a blind bore 113th for receiving a compression spring 136 (FIGS. 12 and 15), which between the fittings 109 and the housing wall of the binding housing 100 are clamped. Preferably, as is Fig. 12 seen, two adjacent in the direction of travel Compression springs 136 provided.

Due to the mirror-image arrangement of the two fittings 109 and the possibility of installing two adjacent Compression springs 136 is a much higher spring force than at the usual cross-country bindings available, eliminating the possibility consists of accumulating in corresponding holes of the shoe Better push out snow.

The diagonally opposite projections 110 are supported in the sharp-angled corners of the openings 111, 111 'of the slider 142 on the inclined guide surfaces 112, 112' from. Upon adjustment of the slide, the projections 109 under the influence of the guide surfaces 112 and 112 'against each other the force of the springs 136 pressed to the bolt 101 from the To free detent position.

To exit the skier pushes the stick on the Trough 106, so that the lever 130 is pivoted downward. As a result, the lever 130 slides along the inclined surface 105 obliquely forward down and pulls the slider 142 after front, causing the two fittings 109 along the cams 112, 112 'are contracted and thus the locking pin 101 the Release shoe.

The slider 142 is at its lever 130 facing away front end in the apparent in Figs. 1 and 5 bridge part 114 of the housing 100 out.

In Fig. 12 suggestively the shoe fittings are located and designated 115.

Claims (5)

1. A ski binding (20) for cross-country skis and touring skis with a step-in mechanism, said ski binding comprising two pressure-spring-loaded retention bolts (7) located in the toe region and extending substantially transversely to the running direction and provided with a rounding (5) or chamfer at their outer ends, said retention bolts engaging in the openings of the boot sole or parts of the latter in the manner of a step-in mechanism and can be brought out of the snapped-in position by a releasing mechanism, characterised in that the rounding (5) or chamfer of the retention bolt is to lie above that plane which extends through the longitudinal axis of the bolt and in the snapped-in state, parallelly to the ski upper side, and that the rounding or chamfer declines from the upper apex of the retention bolt (1), substantially as far as to the lower apex of the retention bolt (1), towards the boot tip, or extends only from the top to the bottom, respectively.
2. A ski binding according to claim 1, characterised in that the spring-loaded retention bolts (1) are provided with pins (9) directed towards the ski surface, which pins engage in guiding links (28) of a slide (42, 142) that is movable in the longitudinal direction of the ski, which slide can be actuated by an element to be actuated by the skier for opening the binding.
3. A ski binding according to claim 1, characterised in that each one of the two latching bolts (101) is carried by a spring-loaded shaped part (109) and the shaped parts (109) are guided in links of the slide (142), which slide, via a hinge (130') extending transversely to the running direction, is connected to a projecting lever (130) that projects obliquely upwards in the running direction, the lever having an inclined surface (105) and a hollow for inserting the pole therein so as to open the binding.
4. A ski binding according to claim 3, characterised in that the base plate (129) is provided with a peripheral rib (107) which engages in a corresponding groove (108) of the housing part (100).
5. A ski binding according to at least one of claims 3 or 4, characterised in that the latching bolts (101) at both sides of the binding project from one shaped part (109) each, which shaped parts (109) are located on either side of the binding in mirror-inverted manner and are provided with a projection (110) which extends into a link of the slide.

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