EP3345659B1 - Automated heelholder device for a ski binding - Google Patents

Description

Technical area

The invention relates to a heel automaton for a ski binding, in particular a touring ski binding. The automatic heel unit comprises a base unit for attachment to the surface of a ski and a heel holder with at least one holding means for holding a ski boot in a heel region of the ski boot, wherein the automatic heel unit has a holding configuration in which the heel holder is in a holding position and the at least one holding means can interact with the heel area of the ski boot held in the ski binding such that the heel area of the ski boot is held down in a lowered position. The automatic heel unit further comprises a radial bearing, by means of which the heel holder is pivotably mounted on the base unit about a substantially vertically oriented, geometrical pivot axis relative to the base unit and thus can be pivoted away from its holding position, starting from its holding position along an adjustment path about the pivot axis Radial bearing has a pin which is formed on a first of the two units of base unit and heel holder, and the radial bearing has a receptacle which is formed on a second of the two units of base unit and heel holder, wherein the pin is rotatably inserted into the receptacle, whereby the heel holder is pivotally mounted about the pivot axis relative to the base unit to the base unit. In addition, the heel unit comprises a pretensioning device, by means of which the heel holder can be prestressed to its holding position in a first region of the adjustment path, wherein the pretensioning device comprises a push element with a positioning structure and an elastic element, wherein the push element bears against the push button by a force generated by the elastic element Pin is depressible, whereby the positioning structure is pressed against a counter-structure associated with the pin, when the heel holder is in the first region of the adjustment, to bias the heel holder in the first region of the adjustment to its holding position.

State of the art

Heel machines of the technical field mentioned above are known. Their task is to ensure a reliable fixation of the heel area of the ski boot on the ski in a holding configuration. To increase the safety of the skier, some such heel machines also allow, starting from the holding configuration, a safety release in which the heel area of the ski boot is released. This may be, for example, a safety release in the forward direction or a lateral safety release. In both cases, the term "safety release" means that the automatic heel releases the heel area of the ski boot if the energy of a shock on the ski boot, the ski binding or the ski exceeds a predetermined value. It is irrelevant whether the heel unit is in the holding configuration or in another configuration after the ski boot is released. For bumps whose energy does not exceed this value, the heel unit remains in the hold configuration and continues to lock the heel area of the ski boot in a lowered position towards the ski.

Furthermore, the nature of the tasks to be taken over by a heel automaton generally depends on which function the ski binding to which the heel machine belongs should fulfill. For example, downhill ski bindings are only used for downhill skiing and downhill skiing at ski lifts. In contrast, touring ski bindings are also used for walking on skis, in particular for ascending with the help of climbing skins attached to the skis. Cross-country skiing is used for cross-country skiing and telemark bindings for skiing with telemark technique. Of these ski bindings downhill ski bindings have only to ensure a reliable fixation of the ski boot on the ski in a so-called stop position. Some heel machines also have a so-called entry-level configuration or deployment configuration, in which they allow entry into the ski binding. This function can also be taken over by a front-end automaton. In contrast, cross-country and Telemarkbindungen usually have to hold the ski only pivotable about an axis aligned in the ski direction axis and to allow entry into the ski binding. On the other hand, touring ski bindings such as downhill ski bindings must be reliable Ensure fixation of the ski boot on the ski in the holding position and allow entry into the ski binding. In addition, however, they must be able to keep the ski boot pivotable about an axis oriented in the direction of the ski for walking on skis or for ascent. For this purpose, touring ski bindings have a walking position in which the ski boot is pivotable about an axis oriented in the direction of the ski and pivotable in the heel area of the ski, as in cross-country skiing and telemark binding, whereby a joint movement between the ski boot and the ski is made possible for walking. Since there are various types of construction and types of touring ski bindings, the heel counter may be in different configurations in the walking position of a touring ski binding, depending on the construction and type of touring ski binding. For example, it may be in its holding configuration, in an entry-level configuration, in a trip configuration, or in a walking configuration.

If a stop position is additionally desired in a cross-country and telemark binding, an heel automat is additionally required with such a cross-country or telemark binding, by means of which the ski boot can be lowered in its heel area towards the ski, and which the heel area of the ski boot can walk can release in the walking position of cross-country or telemark binding.

Touring ski bindings are basically subdividable into two types. One type comprises a ski boot carrier which can be pivoted relative to the ski and to which the ski boot is held by binding jaws. A representative member of this type of touring ski bindings is, for example, in EP 0 754 079 B1 (Fritschi AG). The second type, however, relies on ski boots with stiff soles. In these touring ski bindings, the ski boot is pivotally mounted in his toe area in a skim-mounted front automat. In this case, the automatic heel unit is also fixedly mounted in a distance from the front automatic machine on the ski adapted to a ski boot sole length and, in the downhill position of the binding, holds the ski boot in the heel area in a lowered position. In the ascent position of the binding of the ski boot is still kept in the front vending machine and thus in the ski binding and can be pivoted to the storage on the front vending machine. The heel area of the ski boot However, it is then released by the heel unit and can be lowered towards the ski until the heel area of the boot touches the heel counter or ski, and is lifted off the ski again, without being locked and held down by the heel counter in the lowered position. Suitable for this type of binding ski boots typically have two lateral recesses for pivotal mounting in the front vending machine in the toe box. Next, they have in the heel area to the rear open recesses into which holding means of the heel unit can intervene.

It is understood that in this second type of touring ski bindings, the distance in which the automatic heel lift from the front vending machine must be mounted on the ski is dictated by the length of the sole of the ski boot to be held.

For the description of such binding systems, a (fictitious) ski is often used as the reference system, assuming that the binding is mounted on this ski. This habit is taken over in the present text. Thus, the term "ski longitudinal direction" means along the orientation of the longitudinal axis of the ski. Similarly, "skiparallel" means aligned for an elongate object along the longitudinal axis of the ski. For a flat object, however, the term "ski-parallel" means aligned parallel to the sliding surface of the ski. Further, the term "ski direction" means a direction transverse to the ski longitudinal direction, which, however, need not be oriented exactly at right angles to the longitudinal axis of the ski. Their orientation may also be slightly different from a right angle. The term "ski center", in turn, means a center of the ski in the ski direction, while the term "ski manifest" does not mean that it can move in relation to the ski. It should also be noted that terms that do not contain the word "ski" refer to the reference system of (fictitious) skis. Thus, the terms "front", "rear", "top", "bottom" and "side" refer to "front", "rear", "top", "bottom" and "side" of the ski. Likewise, terms such as "horizontal" and "vertical" refer to the ski, with "horizontal" lying in a ski-parallel plane and "vertical" oriented perpendicular to this plane.

A touring ski binding of the above introduced second type is in the EP 0 199 098 A2 (Barthel) and is sold under the name Dynafit. A front-end machine This system has two clamping parts, each with a pin aligned in the direction of the ski, which engage in recesses in the toe area of the ski boot when entering the touring ski binding from the sides. As a result, the pins form a pivot bearing of the ski boot, on which the ski boot can be pivoted relative to the ski about an axis oriented horizontally in the ski direction.

A separate from the front automatic heel machine this system has a base member for attachment to a ski and a heel holder for holding the ski boot in the heel area of the ski boot. The heel holder is mounted on a base element arranged on the vertically oriented pin and thereby mounted about a vertically oriented, geometric pivot axis relative to the base member pivotally mounted on the base member. In the holding configuration of the heel unit, the heel holder is in a holding position. In this holding position, two pins arranged on the heel holder are oriented forwards towards the front automatic machine, whereby they engage in recesses in the heel of the ski boot and thereby can lock the ski boot in a lowered position towards the ski. When entering the touring ski binding the ski boot is first stored in the front vending machine. Then the heel of the ski boot is lowered from above onto the pins of the heel holder. Since the recesses in the heel of the ski boot downwards are largely open, thereby the recesses are guided over the pins, whereupon the pins engage in locking recesses in the recesses for locking.

To ensure a safety release in the forward direction, the two pins can be pressed apart against a spring force, allowing them to slide out of the detent recesses and the recesses and release the heel of the ski boot upwards. For this purpose, both pins are each arranged on a lever, wherein the levers are each mounted in a horizontal plane pivotally mounted on the heel holder. Both levers are biased by a spring force, so that the two pins are pressed towards each other. By adjusting the spring force, it is possible to specify the force which is required in order to enable a release in the forward direction. This allows a safety release in the forward direction.

In addition to the safety release in the forward direction, the heel unit also enables lateral safety release. For this purpose, the heel holder can be pivoted about a vertically oriented, geometric pivot axis against a spring force on both sides until the two pins are pivoted away to the side and the heel area of the ski boot is released to the appropriate page. In order to allow such a lateral safety release, the pin of the base member on its rear side on a flat surface, which is aligned with its normal vector horizontally backwards. A mounted in the heel holder and biased forward with a spring piston is pressed in the holding position against this surface of the pin. When the heel holder is pivoted away from its holding position about the pivot axis on one of the two sides, so the piston is pivoted and tilted with respect to the surface of the pin. As a result, the piston is moved backwards against the spring force. Thus, the heel holder is biased to its holding position due to the spring force. It can be specified by adjusting the bias of the spring value, which must be exceeded by the energy of a shock to the ski, the ski binding or ski, so it comes to a lateral safety release.

An heel automat according to EP 0 199 098 A2 (Barthel) can also be brought into a climbing position by the heel holder by the skier as in a lateral safety release is rotated about the pivot axis until the two pins are pivoted to the side of the trajectory of the heel of the ski boot. In this case, the heel holder has a plurality of rotational positions in which the pins are pivoted out of the path of movement of the heel. These individual rotational positions are each predetermined by a spring catch for locking the heel holder. When the heel holder is in one of these rotational positions, the trajectory of the heel of the ski boot is free and the ski boot can be lowered down to the ski. On the other hand, when the heel holder is in one of the further rotational positions, in each case a support arranged on the heel holder is pivoted at a certain distance from the ski into the path of movement of the heel of the ski boot. Any such support prevents the ski boot from being at a different distance from the ski on lowering to the ski. Accordingly, different climbing aids can be adjusted by positioning the heel holder in the different rotational positions.

The heel automat according to EP 0 199 098 A2 (Barthel) is indeed very compact. However, it has the disadvantage that the storage of the heel holder on the base element is not very stable.

Another heel unit for a ski binding is from the EP 3 000 511 A1 known.

Presentation of the invention

The object of the invention is to provide a heel machine belonging to the technical field mentioned above, which is constructed compact and to allow stable mounting of the heel holder on the base unit.

The solution of the problem is defined by the features of claim 1. According to the invention, the push element has two arms, wherein one of the two arms is arranged on both sides of the positioning structure and wherein the two arms on opposite sides of the pin extend from the positioning structure to a side of the pivot axis facing away from the positioning structure.

For the inventive solution is irrelevant how the base unit is designed accurately. Thus, the base unit may be formed integrally or in several pieces. For example, it can be like the heel piece of the EP 0 199 098 A2 (Barthel) be integrally formed as a base element. If the base unit is formed in several pieces, it can, for example, as in the in the WO 2012/024809 A1 (Fritschi AG - Swiss Bindings) described a base plate for attachment to the surface of a ski and a slide, which is slidably mounted on the base plate in the ski longitudinal direction and on which the heel holder is pivotally mounted about the pivot axis. In this case, for example, the position of the carriage in the ski longitudinal direction relative to the base plate by means of a screw be adjusted to adjust the position of the heel holder in the ski longitudinal relative to the front of the machine ski binding, so that the ski binding can be adapted to different sized ski boots. In addition, while the carriage can be biased with a spring to a front position relative to the base plate, wherein the heel holder together with the carriage against the bias of the spring can be pushed back to compensate for changes in distance between front and heel holder, which can occur in a deflection of the ski.

For the inventive solution is also irrelevant how the heel holder is designed accurately. The heel holder forms a unit and can be formed in one piece or several pieces. For example, he may like the one in EP 0 754 079 B1 (Fritschi AG) described be made in the form of a jaw, which can embrace the sole of the ski boot from the rear both laterally and above to reach slightly forward. But the heel holder can also, for example, as in the EP 0 199 098 A2 (Barthel) described as a unit with two forward facing pins be formed. The heel holder can also be designed differently.

Further, it is irrelevant how the radial bearing is formed, as long as the radial bearing has a pin and a receptacle, wherein the pin is rotatably inserted into the receptacle, whereby the heel holder is pivotally mounted about the pivot axis relative to the base unit to the base unit. Preferably, the radial bearing prevents a translational movement of the heel holder relative to the base unit in a direction perpendicular to the pivot axis. However, this does not exclude that the base unit has two elements which are movable relative to each other perpendicular to the pivot axis, wherein the radial bearing is arranged on one of these two elements. In this case, the other of the two elements of the base unit may indeed perform a translational movement relative to the heel holder perpendicular to the pivot axis. However, a movement of the element of the base unit, on which the radial bearing is arranged, can still be prevented relative to the heel holder perpendicular to the pivot axis from the radial bearing. In this case, the formulation further applies that the radial bearing prevents a translational movement of the heel holder relative to the base unit perpendicular to the pivot axis.

Regardless of whether the base unit has two elements which are movable relative to each other perpendicular to the pivot axis, wherein the radial bearing is arranged on one of these two elements, there is the possibility that during a movement of the heel holder along the displacement, the pivot axis relative to the base unit is shifted or that the pivot axis relative to the base unit or relative to the element of the base unit, on which the radial bearing is arranged, remains in an unchanged position.

It is also irrelevant how the elastic element of the biasing device is formed. Thus, the elastic element may be formed integrally or in several pieces. For example, the elastic element may be a spring, or more specifically a coil spring. Also, the elastic element may comprise, for example, two or more spiral springs arranged inside one another.

By the two arms on opposite sides of the pin from the positioning structure to a side facing away from the positioning structure of the pivot axis, the two arms engage around the pivot axis on both sides. It is irrelevant whether the arms extend from the positioning structure only just beyond the pivot axis up to the side facing away from the positioning structure of the pivot axis or whether the arms reach further. In a preferred variant, the pivot axis extends through the pin. In this variant, the arms preferably extend to one side of the pin facing away from the positioning structure. Thus, the two arms embrace the pin on both sides. However, there is also the possibility that the arms extend beyond the side of the pin facing away from the positioning structure. It is irrelevant whether the two arms have free ends or whether the two arms are connected to each other on the side facing away from the positioning of the pin.

Regardless of the embodiments described above, the solution according to the invention has the advantage that due to the two arms of the bumper element, the bump element can be made to fit snugly against the journal. Accordingly, the heel box can thereby be made compact while at the same time allowing stable storage of the heel holder on the base unit.

Advantageously, the biasing means comprises two elastic elements, wherein in each case one of the two elastic elements is arranged in the region of each arm of the pusher element and wherein the pegging element is characterized by that of the two elastic elements generated force can be pressed against the pin, whereby the positioning structure is pressed against the counter-structure associated with the pin when the heel holder is in the first range of Verstellwegs to bias the heel holder in the first region of the adjustment to its holding position. In this case, the two elastic elements may each be formed integrally or in several pieces. For example, each of the two elastic members may be a spring or more specific, each a helical spring. For example, however, the two elastic elements may also each have two or more spiral springs arranged one inside the other. Regardless of the specific design of the two elastic elements is achieved by the two elastic elements of the advantage that the automatic heel unit can be constructed compact, but at the same time by the two elastic elements compared to only one elastic element, a greater force can be generated with which the stub element can be pressed against the pin. To achieve this advantage, it is irrelevant whether the two elastic elements cause a tensile force or a compressive force on the stub element.

Regardless of whether the two elastic elements cause a tensile force or a compressive force on the push member, the two elastic members of the biasing means are preferably supported on the second of the base unit and heel holder units to generate the force with which the push member bears against Pin is depressible, whereby the positioning structure is pressed against a counter-structure associated with the pin, when the heel holder is in the first region of the adjustment, to bias the heel holder in the first region of the adjustment to its holding position. This has the advantage that an effective force transmission is made possible by the stub element on the pin, so that the heel holder can be optimally biased towards its holding position in the first region of the adjustment.

In a variant of this, however, there is also the possibility that the two elastic elements of the pretensioning device are supported on a different unit or on a different element of the heel unit than on the heel holder, in order to generate the force with which the abutment element can be pressed against the spigot , For example, there is the possibility that the two elastic elements of the biasing device are supported on the first of the two units of base unit and heel holder, to generate the force with which the push member is pressed against the pin.

In a preferred variant, the two elastic elements of the pretensioning device are each aligned along the respective arm. This has the advantage that the heel machine can be constructed very compact.

In a variant of this, however, the two elastic elements of the pretensioning device can also be aligned differently.

Preferably, the two arms of the pusher element each have a cavity in which in each case one of the two elastic elements is arranged. This has the advantage that the elastic elements can be spatially separated from other elements of the heel counter. As a result, it is possible to prevent the two elastic elements from becoming entangled with further elements of the heel counter during a pivoting movement of the heel holder relative to the base unit or during a movement of other elements of the automatic heel unit. Accordingly, this ensures a reliable functionality of the heel unit.

In a variant of this, however, the two elastic elements can also be arranged differently. In addition, there is the possibility that the two arms of the mullion element do not each have a cavity.

As an alternative to these variants, there is also the possibility that the automatic heel unit comprises only one elastic element or more than two elastic elements.

Regardless of whether the biasing means comprises an elastic member, two elastic members or more than two elastic members, a bias of the elastic member (s) is preferably adjustable to adjust the force generated by the elastic member (s) which the stub element can be pressed against the pin. This has the advantage that the bias voltage with which the heel holder is biased in the first region of the adjustment to its holding position, is adjustable.

Alternatively, however, there is also the possibility that the bias of the elastic element or the elastic elements is not adjustable. Such an alternative has the advantage that the heel machine can be constructed more simply. In addition, the heel box can be designed so that it weighs less.

Preferably, the counter-structure is fixedly arranged on the pin. This has the advantage that the heel holder in the first region of the adjustment can be optimally biased toward its holding position. In a preferred variant, however, the counter-structure is mounted in the axial direction relative to the pin movable on the pin. Preferably, the counter-structure is rotatably held on the pin. Accordingly, when the heel holder is rotated about the pivot axis relative to the base unit, the counter structure rotates relative to the recess, together with the pins. This has the advantage that the heel holder in the first region of the adjustment can be biased very well to its holding position, but also the counter-structure along the pivot axis can be moved. Accordingly, by the counter-structure in addition also a further functionality of the heel unit such as a safety release in the forward direction allows or even controlled.

Preferably, the radial bearing also forms a thrust bearing. This has the advantage that is supported by the thrust bearing of the heel holder against movement along the pivot axis relative to the base unit on the base unit. It is irrelevant whether the thrust bearing acts only in one direction or in both directions along the pivot axis and whether the heel holder is supported by the thrust bearing against movement in one of the two directions or in both directions along the pivot axis relative to the base unit on the base unit ,

Alternatively, there is also the possibility that the radial bearing does not simultaneously form a thrust bearing. In this case, for example, be provided separately from the radial bearing thrust bearing.

If the radial bearing at the same time forms a thrust bearing, then the pin preferably has a recess on an outer side of the spigot surrounding the pivot axis, into which recess at least one of the two arms of the thrust element engages Movement of the push member is blocked relative to the pin in one direction or in both directions along the pivot axis or limited to a range of motion. This has the advantage that the radial bearing, which also forms a thrust bearing, can be constructed very compact. As a result, the automatic heel unit can be constructed very compact.

In a preferred variant thereof, the two arms of the pusher element engage in the recess arranged on the outer side of the peg surrounding the pivot axis, whereby a movement of the pusher element relative to the peg in one direction or in both directions along the pivot axis is blocked or limited to a range of motion is. This has the advantage that the stub element can be supported on both sides on the pin in a direction aligned along the pivot axis direction. Accordingly, the heel box can be constructed very compact and stable. In an alternative variant, however, only one of the two arms of the mating element engages in the recess arranged on the outer side of the peg surrounding the pivot axis.

If the pin has a recess on the outer side of the peg circulating about the pivot axis, in which at least one of the two arms of the pusher element engages, and if thereby a movement of the pusher element relative to the peg in both directions along the pivot axis is limited to a movement range For example, the range of movement measured along the pivot axis preferably has a length of 4mm or less, 2mm or less, more preferably 1mm or less, and most preferably 0.5mm or less. However, there is also the possibility that a movement of the push member is limited relative to the pin in both directions along the pivot axis to a range of motion, which measured along the pivot axis has a length of more than 4mm.

Preferably, the recess arranged on the outer side of the peg circulating about the pivot axis forms a curve that runs closed around the peg. This has the advantage that the automatic heel unit can be designed such that the heel holder is pivotable through 360 ° about the pivot axis. As a result, the usability of the heel unit can be facilitated. If the heel machine in one Touring ski binding of the aforementioned second type is used, it is also possible, for example on the heel holder provide climbing aids, which are pivoted depending on the orientation of the heel holder in the trajectory of the ski boot and thereby support the ski boot at different heights above the ski. In this case, the pivoting of the heel holder by 360 ° about the pivot axis has the advantage that several climbing aids are made possible and that thereby the comfort for the skier is increased.

In a preferred variant, however, the recess arranged on the outer side of the peg circulating about the pivot axis, on the other hand, forms a partial section of a curve that runs closed around the peg. Thus, in this variant, the recess does not form a closed loop around the pin. This has the advantage that the heel machine can be constructed more easily.

In an alternative to these variants, with the recess arranged on the outer side of the peg circulating about the pivot axis, there is also the possibility that the peg has no recess arranged on the outer side of the peg surrounding the pivot axis, into which at least one of the two arms of the pusher element intervenes.

Advantageously, the stub element is supported on the second of the base unit and heel holder units and thereby prevented from axial movement in one direction along the pivot axis relative to the second of the base unit and heel holder units. This has the advantage that the radial bearing, which also forms a thrust bearing, can be constructed very compact. This also makes the heel breaker very compact and easy to construct.

In addition, if the pin on the outer side of the pin surrounding the pivot axis has a recess in which engages at least one of the two arms of Stosselements, whereby a movement of the Stosselements relative to the pin in one direction or in both directions along the pivot axis blocked or on a Movement range is limited, it also has the advantage that by the storage of the bumping element on the second of the two units of base unit and Heel holder and by engaging at least one of the two arms of the bung element in the recess, the radial bearing can be formed at the same time in a simple manner as a thrust bearing.

Alternatively, however, there is also the possibility that the stub element is not mounted on the second of the two units of base unit and heel holder and thereby prevented from axial movement in one direction along the pivot axis relative to the second of the two units of base unit and heel holder.

Preferably, the stub element is pivotable together with the second of the two base unit and heel holder units about the pivot axis relative to the first of the base unit and heel holder units. This has the advantage that the stub element can be designed in a simple manner pivotable relative to the pin about the pivot axis. Thus, it can be achieved in a simple manner that the positioning structure is pressed against the counter-structure associated with the pin when the heel holder is in the first region of the adjustment to bias the heel holder in the first region of the adjustment to its holding position.

Alternatively, however, there is also the possibility that the stub element is not pivotable together with the second of the two units of base unit and heel holder about the pivot axis relative to the first of the two units of base unit and heel holder.

Preferably, the stub element is arranged in the second of the two units of base unit and heel holder. This has the advantage that the mating element can be optimally protected against external influences. In addition, this allows the stub element to be formed in a simple manner together with the second of the two units of base unit and heel holder about the pivot axis relative to the first of the two units of base unit and heel holder. In addition, it can be stored in a simple manner on the second of the two units of base unit and heel holder and the stems element in an axial movement in a direction along the pivot axis relative to the second of the two units of base unit and heel holder are prevented.

Alternatively, however, there is also the possibility that the stub element is not arranged in the second of the two units of base unit and heel holder. For example, the stub element can also be arranged outside the second of the two units comprising base unit and heel holder.

Regardless of whether the biasing means comprises one elastic element, two elastic elements or more than two elastic elements, the elastic element of the biasing means or the elastic elements of the biasing means are preferably together with the second of the two units of base unit and heel holder about the pivot axis pivotable relative to the first of the two units of base unit and heel holder. This has the advantage that the stub element and thus the positioning structure can be formed in a simple manner against the counter-structure associated with the pin to bias the heel holder in the first region of the adjustment to its holding position when the heel holder in the first region of the Adjustment path is located.

Alternatively, there is also the possibility that the elastic element of the biasing means or the elastic elements of the biasing means are not pivotable together with the second of the two units of base unit and heel holder about the pivot axis relative to the first of the two units of base unit and heel holder.

Regardless of whether the biasing device comprises one elastic element, two elastic elements or more than two elastic elements, the elastic element of the pretensioning device or the elastic elements of the pretensioning device are preferably arranged in the second of the two units of base unit and heel holder. This has the advantage that the elastic element or the elastic elements of the biasing device can be optimally protected against external influences.

Alternatively, however, it is also possible that the elastic element of the biasing means or the elastic elements of the biasing means are not arranged in the second of the two units of base unit and heel holder. For example, the elastic element of the pretensioning device or the elastic elements of the pretensioning device can also be arranged outside the second of the two units comprising the base unit and the heel holder.

Advantageously, the heel holder is in its holding position in the first region of the adjustment. This has the advantage that the heel holder in the first region of the adjustment can be optimally biased toward its holding position.

Alternatively, there is also the possibility that the heel holder is not in the first range of the adjustment in its holding position.

If the heel holder is in its holding position in the first region of the adjustment, so when the heel holder is in the first region of the adjustment, preferably a distance between the positioning structure and the pivot axis depends on the position of the heel holder on the adjustment, wherein the distance larger, the farther the heel holder is on the adjustment path from its holding position. This has the advantage that the heel holder in the first region of the adjustment can be optimally biased toward its holding position.

Alternatively, there is also the possibility that when the heel holder is in the first region of the displacement, a distance between the positioning structure and the pivot axis is not dependent on the position of the heel holder on the adjustment, or that when the heel holder in the first The range of the adjustment is located, the distance is not greater, the farther the heel holder is on the adjustment of its holding position.

Preferably, the heel holder is starting from its holding position along the adjustment in both directions about the pivot axis of its holding position pivotally away. This has the advantage that a simpler handling of the heel unit is made possible. In addition, this can be a lateral safety release enabled, thereby increasing the safety for the skier.

Alternatively, however, there is also the possibility that the heel holder, starting from its holding position along the adjustment path, can be pivoted away from its holding position only in one direction about the pivot axis.

Preferably, the automatic heel unit has a walking configuration in which the heel holder is in a walking position and the heel area of the ski boot held in the ski binding is released from the heel holder and can be lowered towards the ski until the heel area of the ski boot touches the heel counter or the ski, and can be lifted off the ski again, without being locked by the heel holder in the lowered position. This has the advantage that the automatic heel is particularly suitable for a touring ski binding, a Telemark ski binding or a cross-country ski binding.

If the automatic heel unit has a walking configuration, then preferably the heel holder is adjustable along its displacement from its holding position to its walking position and back. This has the advantage that the operation of the heel counter is simplified.

As a variant of this, however, there is also the possibility that the heel holder is not adjustable along the adjustment path from its holding position to its walking position and back.

As an alternative to these variants, there is also the possibility that the automatic heel unit has no housing configuration in which the heel holder is in a walking position.

Advantageously, the heel unit allows a safety release. This has the advantage that safety is increased for the skier.

In a preferred variant thereof, the automatic heel unit enables a safety release in the forward direction. In another preferred variant thereof, the automatic heel unit allows lateral safety release. In a further preferred variant, the automatic heel unit allows both a safety release in the forward direction and a lateral safety release.

If the automatic heel unit allows a lateral safety release, the lateral safety release is preferably made possible by a movement of the heel holder along the adjustment path from its holding position. This has the advantage that the heel machine can be designed so that it has little weight.

As an alternative, there is also the possibility that the automatic heel unit does not allow safety release.

Preferably, the at least one holding means for holding a ski boot in a heel region of the ski boot is two holding means each having a holding element for holding the ski boot in the heel region of the ski boot. Preferably, the two holding elements are each formed by a pin, which points with its free end to the front to intervene to hold the ski boot in the heel area of the ski boot in a recess in the heel area of the ski boot. But the two holding elements can also be designed differently. Regardless of the shape of the holding elements, the two holding means are preferably movable relative to each other, whereby a distance between the two holding elements is variable. Preferably, the two holding elements are in a holding position in a holding distance to each other. In this case, the two holding elements are preferably prestressed to their holding distance by a prestressable elastic biasing element, by the bias in the prestressed state, a force can be generated.

In a preferred variant, the at least one holding means for holding a ski boot in a heel area of the ski boot is a heel piece.

Alternatively, however, there is also the possibility that the at least one holding means for holding a ski boot in a heel region of the ski boot is designed differently.

A ski binding preferably comprises an automatic heel piece according to the invention. In a preferred variant of this it is a touring ski binding. But it can also be a different type of ski binding.

Advantageously, a ski comprises a ski binding with an inventive heel counter.

From the following detailed description and the totality of the claims, further advantageous embodiments and feature combinations of the invention result.

Brief description of the drawings

Fig. 1

eine Schrägansicht eines erfindungsgemässen Fersenautomaten in einer Haltekonfiguration,

Fig. 2

eine Schrägansicht einer Explosionsdarstellung des erfindungsgemässen Fersenautomaten,

Fig. 3

eine Schrägansicht des erfindungsgemässen Fersenautomaten in einer Gehkonfiguration,

Fig. 4a, b

je eine Aufsicht auf einen horizontal durch den erfindungsgemässen Fersenautomaten verlaufenden Querschnitt des Fersenautomaten, wobei ein Fersenhalter des Fersenautomaten im Vergleich zu seiner Haltestellung einmal um 90° nach rechts gedreht und einmal in seiner Haltestellung gezeigt ist,

Fig. 5a, b

je einen vertikal ausgerichteten, in Skilängsrichtung durch den erfindungsgemässen Fersenautomaten verlaufenden Querschnitt, wobei der Fersenautomat einmal in der Haltekonfiguration und einmal in der Gehkonfiguration gezeigt ist, und

Fig. 6

eine vereinfachte schematische Darstellung eines vertikal ausgerichteten, in Skilängsrichtung durch einen weiteren erfindungsgemässen Fersenautomaten verlaufenden Querschnitt.

The drawings used to explain the embodiment show:

Fig. 1

an oblique view of an inventive heel unit in a holding configuration,

Fig. 2

an oblique view of an exploded view of the inventive heel counter,

Fig. 3

an oblique view of the inventive heel unit in a housing configuration,

Fig. 4a, b

each a plan view of a horizontally extending through the heel machine according to the invention cross-section of the heel unit, wherein a heel holder of the heel unit in comparison to its holding position once rotated by 90 ° to the right and shown once in its holding position

Fig. 5a, b

in each case a vertically oriented cross-section extending in the longitudinal direction of the ski through the automatic heel piece according to the invention, the heel-piece being shown once in the holding configuration and once in the walking configuration, and

Fig. 6

a simplified schematic representation of a vertically oriented, extending in the ski longitudinal direction through another inventive heel unit cross section.

Basically, the same parts are provided with the same reference numerals in the figures.

Ways to carry out the invention

FIG. 1 shows an oblique view of an inventive heel unit 1 in a holding configuration. Here, the heel unit 1 is shown from diagonally behind. Therefore corresponds to the upper left in the illustration in the heel unit 1 front and bottom right in the representation of the heel counter 1 back.

The heel machine 1 is part of a ski binding. This ski binding may also have a front automatic, not shown here, with which a not shown here ski boot can be held in the toe area of the ski boot. As explained in the following description of the heel unit 1, the automatic heel unit 1 allows functions that are required for touring ski binding. Accordingly, the automatic heel unit 1 can also be part of a touring ski binding, a telemark binding or a cross-country binding. But it can also be part of a departure binding.

The automatic heel unit 1 comprises a base unit 2 for fastening the automatic heel unit 1 on the surface of a ski, not shown here. The heel holder 1 in turn comprises two holding means 31.1, 31.2 for holding a ski boot, not shown here, in the heel region of the ski boot. Since the heel holder 3 is in the holding configuration of the heel counter 1 in a holding position and the heel counter 1 in FIG. 1 shown in the holding configuration is in FIG. 1 the heel holder 3 shown in its holding position. In this holding position of the heel holder 3, the two holding means 31.1, 31.2 point forwards in the ski longitudinal direction and can therefore interact with the heel region of the ski boot held in the ski binding such that the heel region of the ski boot is held down in a lowered position.

The heel holder 3 is mounted by a radial bearing about a substantially vertically oriented, geometric pivot axis 7 relative to the base unit 2 pivotally mounted on the base unit 2. In FIG. 1 is this pivot axis 7 schematically as a vertical represented by the heel unit 1 running, dashed line. Starting from its holding position, the heel holder 3 can be pivoted away from its holding position along a displacement path about the pivot axis 7.

FIG. 2 shows an oblique view of an exploded view of the heel unit 1. As already at FIG. 1 corresponds in the illustration at the top left in the heel counter 1 front, while bottom right in the representation in the heel counter 1 corresponds to the back.

In the exploded view of the FIG. 2 are like already in FIG. 1 the base unit 2, the heel holder 3, the ski brake 4 and the heel support 5 to recognize. In FIG. 2 In addition, it can be seen that the heel holder 3 has a housing with two housing parts 38.1, 38.2. Next is in FIG. 2 to recognize that the base unit 2 comprises a base plate 21 which can be fastened by means of screws on the ski. In addition, it can be seen that the base unit 2 comprises a carriage 22 which is mounted displaceably on the base plate 21 in the ski longitudinal direction and on which the heel holder 3 is pivotally mounted about the pivot axis 7 relative to the base unit 2. Similar to the carriage 22 and the heel support 5 is slidably mounted on the base plate 21 in the ski longitudinal direction. However, the heel support 5 is seen in the ski longitudinal direction in front of the carriage 22 is arranged on the base plate 21.

The base plate 21 has on its upper side a running in the longitudinal direction of the channel, in the front region of a thread 23 is arranged. In the assembled state of the heel unit 1, a screw 24 is placed in this thread 23, which extends upwards out of the thread 23 and engages in a arranged on an underside of the heel 5 recess in the heel support 5. This screw 24 is provided with a bolt 25 pointing backwards. The rear end of this bolt 25 is accessible from outside the heel unit 1. Therefore, by turning the bolt 25, the worm 24 in the thread 23 can be screwed forward and backward. Since the worm 24 engages in the recess in the heel carrier 5, as already mentioned, the heel carrier 5 is moved forwards or backwards with respect to the base plate 21 in such a movement of the worm 24.

Behind the screw 24, a spiral-shaped steel spring 26 oriented in the longitudinal direction of the ski is arranged below the carriage 22 in the channel on the upper side of the base plate 21. In the middle opening of this steel spring 26 of the bolt 25 is guided. Here, the steel spring 26 is supported in the assembled state of the heel unit 1 with its rear end against a head of the bolt 25. With its front end, however, the steel spring 26 is supported against an arranged on the underside of the carriage 22 paragraph. Thus, the carriage 22 is pressed by the bias of the steel spring 26 against the front against the heel support 5 and pressed against the heel support 5. Therefore, by turning the bolt 25 not only the heel support 5, but also the carriage 22 in the ski longitudinal direction relative to the base plate 21 are moved. In this case, the carriage 22 but also against the force of the steel spring 26 relative to the base plate 21 to the rear of the heel support 5 are moved away. As soon as such a force effect ends to the rear or weaker than the forward acting force of the steel spring 26, the carriage 22 is moved by the steel spring 26 again forward and held pressed against the heel support 5.

Since the heel holder 3 is mounted on the carriage 22 as already mentioned, the position of the heel holder 3 is also adjusted in the ski longitudinal direction by turning the bolt 25. Correspondingly, when the automatic heel unit 1 is fastened on the ski, the heel holder 3 can be adjusted in different positions by turning the bolt 25 in the longitudinal direction of the ski in order to adapt the automatic heel unit 1 to different size ski boots. In addition to this adjustability, the heel holder 3 can also be moved together with the carriage 22 against the force of the steel spring 26 relative to the base plate 21 to the rear. This makes it possible that at a deflection of the ski occurring distance changes between the front vending machine and the heel unit 1 of the ski binding can be compensated.

To mount the heel holder 3 pivotably about the pivot axis 7 relative to the base unit 2 on the carriage 22, the carriage 22 has on its upper side a pin 27 pointing upwards along the pivot axis 7, while the heel holder 3 its bottom has a receptacle. In the assembled state of the heel unit 1, this pin 27 is rotatably inserted into the receptacle, whereby a radial bearing is formed, through which the heel holder 3 is mounted about the pivot axis 7 relative to the base unit 2 pivotally mounted on the base unit 2.

As already related to FIG. 1 mentioned, the heel holder 3 is starting from its holding position along a displacement about the pivot axis 7 of its holding position pivotally away. Here, the heel holder 3 is biased by a biasing device 6 in a first region of the adjustment path to its holding position. As in FIG. 2 can be seen, this biasing means 6 comprises two coil springs 62.1, 62.2, which each form an elastic element, and a push member 61 and a support member 65. The push member 61 has a positioning structure 63 and two arms 64.1, 64.2, wherein on both sides of the positioning structure 63 each one of the two arms 64.1, 64.2 is arranged. In this case, the two arms 64.1, 64.2 of the push member 61 each have a cavity, in each of which one of the two coil springs 62.1, 62.2 is arranged. Accordingly, one of the two coil springs 62.1, 62.2 is arranged in each case in the region of one of the two arms 64.1, 64.2.

In the assembled state of the heel unit 1, the stub element 61 with its arms 64.1, 64.2 horizontally aligned in the heel holder 3 along an orientation of the arms 64.1, 64.2 of the push member 61 mounted horizontally displaceable. In this case, the stub element 61 is prevented from an axial movement in one direction along the pivot axis 7 relative to the heel holder 3. The stub element 61 is thus mounted so as to be displaceable in the heel holder 3 along the orientation of its arms 64.1, 64.2 relative to the heel holder 3 and relative to the pin 27. In this case, the pin 27 is disposed between the two arms 64.1, 64.2 of the push member 61, wherein the two arms 64.1, 64.2 of the push member 61 on opposite sides of the pin 27 from the positioning structure 63 to one of the positioning structure 63 opposite side of the pivot axis 7 rich. In this case, when the heel holder 3 is pivoted about the pin 27 and thus about the pivot axis 7 relative to the base unit 2, together with the heel holder 3 and the stub element 61 is pivoted about the pivot axis 7 relative to the base unit 2.

In the assembled state of the automatic heel unit 1, the two coil springs 62.1, 62.2, as already mentioned, are each arranged in the cavity in the respective arm 64.1, 64.2 of the push element 61. The two coil springs 62.1, 62.2 are each aligned along the respective arm 64.1, 64.2 and are each supported with their first end inside in the respective arm 64.1, 64.2 against the free end of the respective arm 64.1, 64.2. With their second ends, however, the two coil springs 62.1, 62.2 supported against the support member 65, which is seen from the pin 27 behind the positioning structure 63. In this case, the support member 65 is supported on its the stub element 61 and the two coil springs 62.1, 62.2 side facing away via a nut 67 and a screw 66 on the housing of the heel holder 3. By virtue of this arrangement, in the assembled state of the automatic heel unit 1, the push element 61 is pressed against the pin 27 by a force generated by the two spiral springs 62.1, 62.2 with the positioning structure 63. In this case, a distance of the support member 65 from the pin 27 can be adjusted by turning the screw 66, whereby a bias of the two coil springs 62.1, 62.2 can be adjusted. Accordingly, by turning the screw 66, the force can be adjusted, with which the push member 61 is pressed against the pin 27.

When the heel holder 3 is in the first region of the adjustment path, the positioning structure 63 is located in the region of a counter-structure 28 fixedly arranged on the pin 27 and is pressed against this counter-structure 28 by the two spiral springs 62.1, 62.2. Due to the shape of the positioning structure 63 and the counter-structure 28 is a distance between the positioning structure 63 and the pivot axis 7 depending on the position of the heel holder 3 on the adjustment. The further the heel holder 3 is in the first region of the adjustment away from its holding position, the greater is this distance. Since the abutting member 61 as already mentioned by the two coil springs 62.1, 62.2 is pressed with its positioning structure 63 against the pin 27 and a pivotal movement of the heel holder 3 about the pin 27 and about the pivot axis 7 together with the heel holder 3 about the pin 27 and the pivot axis 7 is pivoted, is achieved in that the heel holder 3 is biased in the first region of the adjustment to its holding position.

Like in the FIG. 2 can be seen, the pin 27 on a circumferential axis about the pivot axis 7 outside of the pin 27 has a recess. This recess forms a closed around the pin 27 encircling curve. In the assembled state of the heel unit 1, the two arms 64.1, 64.2 of the push member 61 engage in the recess. As a result, a movement of the push member 61 is blocked relative to the pin 27 in the two directions along the pivot axis 7. Since, in addition, as already mentioned, the stub element 61 is horizontally displaceably mounted with its arms 64.1, 64.2 horizontally in the heel holder 3 along an alignment of the arms 64.1, 64.2 of the abutting element 61, but the abutting element 61 acts on an axial movement in one direction along the pivot axis 7 is prevented relative to the heel holder 3, thereby forming the radial bearing at the same time also a thrust bearing. In this case also the stub element 61 forms a part of the radial bearing or thrust bearing.

As already mentioned, the heel holder 3 can be pivoted away from its holding position, starting from its holding position along the adjustment path about the pivot axis 7. In this case, the heel holder 3 can be pivoted by 360 ° about the pivot axis 7. This is in FIG. 3 illustrated. In this figure is like in FIG. 1 an oblique view of the heel unit 1 seen from obliquely behind seen. Therefore corresponds to the upper left in the illustration in the heel unit 1 front and bottom right in the representation of the heel counter 1 back. In contrast to FIG. 1 is in FIG. 3 the heel holder 3 shown rotated in relation to its holding position by 180 °. Thus, the two holding means 31.1, 31.2 to the rear or in the figure to the bottom right.

The FIGS. 4a and 4b each show a plan view of a horizontally extending through the heel unit 1 cross-section of the heel unit 1. In FIG. 4a the heel holder 3 is shown rotated 90 ° to the right compared to its holding position. In FIG. 4b however, the heel holder 3 is as in FIG. 1 shown in his holding position.

In the cross-sectional representations of FIGS. 4a and 4b The cross-section shown in each case extends through the stub element 61 and through the recess in the pin 27 arranged on the outer side of the pin 27 surrounding the pivot axis 7. Thus, both the positioning structure 63 of the abutting element 61 and the counter-structure 28 of the pin 27 can be seen. It can thus be seen that the positioning structure 63 is a curvature arranged between the arms 64.1, 64.2 of the push member 61, the pin 27 protruding toward. In addition, it can be seen that the counter-structure 28 is a recess extending into the journal 27 on the rear side of the journal 27. Like in the FIG. 4b shown, the positioning structure 63 engages in the holding configuration of the heel unit 1, in which the heel holder 3 is in its holding position, in the counter-structure 28 a. Starting from this position, the heel holder 3 can be pivoted in both directions about the pivot axis 7 from its holding position away. In this case, the positioning structure 63 is moved out of the counter-structure 28, as a result of which the abutting element 61 is pressed away from the journal 27 against the force of the two spiral springs 62.1, 62.2. This is in FIG. 4a illustrates where the heel holder 3 moves away from the first region of the adjustment and thus also the positioning structure 63 moves away from the counter-structure 28 is shown.

Since in such a movement of the heel holder 3 away from its holding position, the two holding means 31.1, 31.2 are pivoted to the heel holder 3 to the side, while a held in heel machine 1 ski boot can be released to the side. Accordingly, this allows a lateral safety release. This lateral safety release is adjustable by the bias of the two coil springs 62.1, 62.2 is adjusted by turning the screw 66.

As in the FIGS. 4a and 4b can be seen, the pin 27 not only arranged on the rear side of the pin 27 counter-structure 28, but also a corresponding, arranged on the front side of the pin 27 structure 29 on. If the heel holder 3 is rotated 180 ° starting from its holding position, the two holding means 31.1, 31.2 are as shown in FIG FIG. 3 shown to the rear. In this position of the heel holder 3, the positioning structure 63 of the pushing element 61 engages in the pin 27 in the structure 29 a. As a result, the heel holder 3 is held in this position. When the heel holder 3 is in this position, the automatic heel unit 1 is in a walking configuration. In this Geh configuration, the heel holder 3 is in a walking position and the heel area of a ski boot held in the ski binding is released from the heel holder 3 and can be lowered towards the ski until the heel area of the ski boot touches the heel counter 1 and on the Heel unit 1 is supported. Starting from this position, the heel area of the ski boot can also be lifted away from the ski again, without being locked thereby by the heel holder 3 in the lowered position.

Apart from the previously described lateral safety release, the automatic heel unit 1 also allows a safety release in the forward direction. This is described below:
As in FIG. 2 can be seen, the two holding means 31.1, 31.2 of the heel holder 3 are each formed by an elongated rod with a circular cross-section. In this case, the two bars in the holding configuration of the automatic heel unit 1 are aligned substantially in the ski longitudinal direction. Each rod thus forms an arm 32.1, 32.2, the front end of which forms a corresponding holding element 33.1, 33.2 or a pin which, in the holding position of the automatic heel unit 1, points forwards with its free end in order to hold the ski boot in the heel area of the ski boot intervene. Thus, the holding elements 33.1, 33.2 correspond with the forward facing pins in the AT 402 020 B (Barthel) and WO 2012/024809 A1 (Fritschi AG) described heel machines. The heel machine 1 can therefore like the one in the AT 402 020 B (Barthel) and WO 2012/024809 A1 (Fritschi AG) are used together with commercially available ski boots with corresponding recesses in the heel area.

A distance between the two holding elements 33.1, 33.2 of the present automatic heel 1 is changeable. In the FIG. 1 are the two holding elements 33.1, 33.2 in a holding position. In this holding position, the two holding elements 33.1, 33.2 are in a holding distance. As explained in detail below, the two holding elements 33.1, 33.2 are biased by an elastic element to its holding distance and can be moved apart against this bias. As a result, a safety release in the forward direction is made possible by the automatic heel unit 1.

The housing of the heel holder 3, which at the same time also forms a bearing structure 34, has in its upper region two continuous, running in the longitudinal direction of the ski Recesses on. In a forwardly facing side of the housing, these recesses each have a cross-section in a plane oriented vertically in the transverse direction, which corresponds to a horizontally oriented slot. In the assembled state of the heel unit 1 are the two arms 32.1, 32.2 in these recesses and rich with their front ends, which form the holding elements 33.1, 33.2, forward beyond the recesses. In this case, the two arms 32.1, 32.2 in the region of their rear ends by a respective rubber piece 35.1, 35.2 comprises, so that the rear ends of the arms 32.1, 32.2 in the recesses are held laterally, horizontally in Skiquerrichtung. These rubber pieces 35.1, 35.2 may be made of rubber or of another flexible plastic. The flexible plastic may be stiffer than rubber.

In addition to the rubber pieces 35.1, 35.2, however, the two arms 32.1, 32.2 are each still secured by a not shown here, vertically aligned bolt against movement in the ski longitudinal direction. For this purpose, the two arms 32.1, 32.2 as in FIG. 2 visible in each case in the region of its rear end on a circumferential groove. In the assembled state of the heel unit 1, the bolts engage in this groove of the respective arm 32.1, 32.2. As a result, the two arms 32.1, 32.2 are held in the bearing structure 34 and secured against movement in the longitudinal direction of the ski. However, this storage allows a pivotal movement of the arms 32.1, 32.2 to the bolt. Thus, the two arms 32.1, 32.2 are arranged in a horizontally oriented, first plane and movable relative to each other in this first plane. This makes it possible that the distance between the two holding elements 33.1, 33.2 can be changed. The mounting of the arms 32.1, 32.2 also allows a rotation of the arms 32.1, 32.2 and thus the holding elements 33.1, 3.2 about the longitudinal axis of the arms 32.1, 32.2. As a result, the entry into the automatic heel 1 is facilitated for the skier. In addition, the ski boot can be released more reliably from the automatic heel unit 1 in the event of a safety release in the forward direction.

In the assembled state of the heel unit 1, a transmission element 36 is mounted in the housing of the heel holder 3. This transmission element 36 is formed from a metal sheet. It is oriented essentially vertically in the direction of the skiver and in vertical direction on the bearing structure 34 slidably mounted. The transmission element 36 has laterally two upwardly projecting arms, which are spread apart in a V-shape away from the ski center. With these two arms, the transmission element 36 engages around the two arms 32.1, 32.2 of the holding means 31.1, 31.2 from below. In this way, the flanks of the two arms of the transmission element 36 pointing obliquely upwards toward the ski center form an effective area for cooperation with the two arms 32.1, 32.2 of the holding means 31.1, 31.2. Therefore, when the transmission member 36 is moved upward, the two arms 32.1, 32.2 and thus the two holding members 33.1, 33.2 are moved towards each other to their holding distance. In contrast, when the two holding elements 33.1, 33.2 are pressed apart, the transmission element 36 is pressed down.

In the assembled state of the heel unit 1 is located in the housing of the heel holder 3, a helical Frontalauslösefeder 37.1 with a piston 37.2. The frontal release spring 37.1 is an elastic element. It is aligned and biased in the ski longitudinal direction. With its rear end, the frontal release spring 37.1 is supported against a screw 39.1 with a nut 39.2. The screw 39.1 is accessible from outside the housing of the heel holder 3. By turning the screw 39.1, the rear end of the frontal release spring 37.1 can be moved slightly backwards or slightly forward. As a result, the bias of the frontal trip spring 37.1 can be adjusted. With its front end, the frontal release spring 37.1 pushes the piston 37.2 forwardly against a tapered portion of the transmission element 36, which is located in the lower region of the transmission element 36. Thus, the frontal release spring 37.1 generates by its bias a force which is aligned in the ski longitudinal direction forward. By means of the piston 37.2, the frontal release spring 37.1 acts with this force on the transmission element 36, which is thereby prestressed upward in a first direction due to its beveled region. Due to the upwardly biased transmission element 36, the two arms 32.1, 32.2 and thus the two holding elements 33.1, 33.2 biased towards each other to their holding distance. This arrangement of the elements of the automatic heel unit 1 causes the force generated by the frontal release spring 37.1 and the first direction are aligned at right angles to each other. In addition, the first direction is perpendicular to the first plane aligned while the force generated by the frontal release spring 37.1 is aligned parallel to the first plane. As a result, the frontal release spring 37.1 can be arranged below the two retaining means 31.1, 31.2, as a result of which a comparatively large frontal release spring 37.1 can be used without the construction of the automatic heel unit 1 having to be increased. Accordingly, the automatic heel unit 1 allows adjustment of the safety release in the forward direction for a particularly sporty driving style.

It is understood that according to the invention, the elements of the heel counter can also be arranged differently. For example, the force generated by the frontal release spring 37.1 can also be aligned parallel to the first direction. But it can also be aligned with an angle to the first direction. This angle can be for example 15 °, 30 °, 45 °, 60 ° or 75 °. In addition, the first direction may be oriented at a different angle to the first plane or even in or parallel to the first plane. For example, the first direction may be oriented at an angle of 15 °, 30 °, 45 °, 60 ° or 75 ° to a normal of the first plane. It is also not necessary for the arms 32.1, 32.2 of the holding means 31.1, 31.2 to be aligned in the longitudinal direction of the ski. Accordingly, the arms 32.1, 32.2 of the holding means 31.1, 31.2, for example, also be aligned vertically. In this case, the first plane is oriented vertically in the skibear direction. But the arms 32.1, 32.2 and the first level can also be aligned differently. For example, the first plane may be oriented such that its normal vector is aligned in a vertical, longitudinally aligned plane.

As already related to the FIGS. 1 and 2 mentioned, the heel unit 1 comprises a ski brake 4 and a heel support 5. In this case, the heel support 5 is slidably mounted on the base plate 21 in the ski longitudinal direction and can be adjusted by adjusting the screw 24 in the ski longitudinal direction relative to the base plate 21. When the automatic heel unit 1 is in the walking configuration, the ski boot can be lowered down to the heel support 5. This heel carrier 5 also serves as a brake holder 51 for the ski brake. 4

As in FIG. 2 can be seen, the ski brake 4 comprises a brake bracket 41, which consists of bent wire. The two free ends of this brake bracket 41 point to the rear and form brake arms. In a braking position of the ski brake 4, these two brake arms extend on both sides of the ski down beyond the sliding surface of the ski. Thus, the brake arms can interact in the braking position with the snow and brake the ski. In a driving position of the ski brake 4, however, the two brake arms are pivoted upwards over the ski and have no such braking effect. In order to move the brake arms back and forth between these two positions when the ski brake 4 is moved from the driving position to the holding position and back, the brake lever 41 is pivotally mounted in a brake bearing 43 in its central region 42 about an axis oriented horizontally in the transverse direction , When the brake arms are pivoted downwardly in the braking position, the front portion of the ski brake 4, to which a tread plate 44 is attached, is as in FIG FIG. 1 shown, swung upwards away from the ski. On the other hand, when the brake arms are pivoted upward in the driving position so as to face horizontally rearward, the front portion of the ski brake 4 is as in FIG FIG. 3 shown lowered with the tread plate 44 toward the ski.

The shape of the brake bracket 41 and the brake bearing 43 are selected such that the two brake arms of the brake bracket 41 are slightly stretched in the assembled state of the heel unit 1 against each other. They are less tensioned in the braking position than in the driving position. Due to this bias, the ski brake 4 is biased to its braking position. When the ski brake 4 is in the braking position, it can, however, be adjusted to the driving position when, for example, a ski boot presses the tread plate 44 from top to bottom. In addition, it can also be kept in the driving position by the presence of a ski boot.

The heel machine 1 is not only suitable for a downhill binding, but also for touring ski binding. It has a holding configuration in which the heel holder 4 can cooperate with the heel region of the ski boot and can lock the ski boot in a lowered position. Next, however, as already mentioned, the automatic heel unit 1 also has a housing configuration in which the heel area of the heel piece 1 Skischuhs is released and the ski boot lowered to the ski or heel unit 1 back and can be lifted back up without being locked with his heel area in the lowered position. In the holding configuration, the ski brake 4 is basically released and can move into its braking position as soon as a ski boot releases the space above the tread plate 44. In the Gehkonfiguration contrast, the ski brake 4 may indeed be in the braking position. Once the ski brake 4 but once adjusted to its driving position, for example, by a ski boot pushes the tread plate 44 down, the brake lever 41 snaps into the brake holder 51 and is henceforth, as in FIG. 3 shown held by the brake holder 51 in the driving position, as long as the automatic heel unit 1 is in the Gehkonfiguration. Only when the automatic heel unit 1 is adjusted in the departure configuration, the brake lever 41 is released by the brake holder 51 and can be adjusted again in the braking position.

The mechanism which makes this possible, is constructed as follows: The brake bracket 41 is as already mentioned mounted on the brake bearing 43, wherein the two brake arms of the brake bracket 41 in the assembled state of the heel unit 1 are slightly biased against each other. They are less tensioned in the braking position than in the driving position. Due to this bias, the ski brake 4 is biased to its braking position. In addition, the brake bearing 43 is slidably mounted in the heel support 5 in the ski longitudinal direction. When the ski brake 4 is in the braking position, the brake yoke 41 in the front position of the brake bearing 43 is biased slightly more than in the rear position of the brake bearing 43 by the shape of the brake yoke 41 and the heel carrier 5 the braking position of the ski brake 4 biased to the rear. Accordingly, the brake bearing 43 and the brake bracket 41 are moved rearwardly as soon as the ski brake 4 is released and moves into the braking position.

When the automatic heel unit 1 is moved from its holding configuration into its walking configuration, the heel holder 3 is pivoted by 180 ° about the pivot axis 7. In this case, the region of the heel holder 3, which is located in the holding position of the heel holder 3 at the rear, pivoted forward. In this case, this area of the heel holder 3 pushes the brake bearing 43 against the caused by the brake bracket 41 and rearward bias to the front. If the automatic heel unit 1, however, is adjusted by its housing configuration in its holding configuration, the heel holder 3 is in turn pivoted about the pivot axis 7, so that the brake bearing 43 is released and can be moved to the rear. Due to the bias of the brake bracket 41 thereby the ski brake 4 is moved from the driving position to the braking position, unless the ski brake 4 was already in the braking position anyway. In addition, the brake bearing 43 is moved backwards due to the bias of the brake lever. Towards the end of the pivoting movement of the heel holder 3 about the pivot axis 7, the brake bearing 43 also hooks with a hook arranged in its rear region in the case of a counterpart arranged on the heel holder 3 below the holding means 31.1, 31.2. By this hooking the brake bearing 43 is held in the holding configuration of the heel unit 1, in which the heel holder 3 is in its holding position in the rear position and can not be moved unintentionally forward. Only when the automatic heel unit 1 is again adjusted in the Gehkonfiguration, this hooking when pivoting the heel holder 3 is released about the pivot axis 7 again.

For these reasons, the brake pad 41 is located further forward in the housing configuration than in the retaining configuration. Thus, the brake bracket 41 in the housing configuration is within reach of the brake holder 51 and can be held by the brake holder 51 in the driving position. In the holding configuration, however, the brake bracket 41 is out of reach of the brake holder 51. Therefore, the brake bracket 41 is released in the holding configuration of the heel unit 1 from the brake holder 51 and can move by its bias in the braking position when the treadle 44 is not by a ski boot after down to the ski.

In an alternative variant, the hook in the rear region of the brake bearing 43 and the counterpart on the heel holder 3 can also be designed such that the brake bearing 43 is pulled back when the heel unit 1 is moved from the walking configuration into the holding configuration by hooking the hook in the counterpart , In this case, it is not necessary that the brake bearing 43 in the braking position is biased by the shape of the brake bracket 41 and the heel support 5 and the bias of the brake bracket 41 to the rear.

The FIGS. 5a and 5b each show a vertically oriented, running in the ski longitudinal direction through the heel unit 1 cross-section. In FIG. 5a the heel unit 1 is shown in the holding configuration. In the FIG. 5b however, the heel counter 1 is shown in the walking configuration. In both illustrations, 1 is on the left at the heel counter, while 1 is at the back for the heel counter 1 in both illustrations.

In these cross-sectional views of the structure of the mechanics, as the heel support 5 and the carriage 22 relative to the base plate 21 can be adjusted in the longitudinal direction, the radial bearing and the mechanism, which allows the triggering in the forward direction to recognize.

As in the FIGS. 1 . 2 . 3 5a and 5b, the automatic heel unit 1 has two climbing aids 71, 72. These two climbing aids 71, 72 are each mounted on a separate axis pivotally on top of the heel holder 3. In the walking configuration of the heel unit 1, the two climbing aids 71, 72, as in Figures 3 and 5b , shown pivoted to a deactivated position. However, they can also be pivoted one after the other forward into the movement path of the ski boot in order to support the ski boot at a different distance from the ski above the ski.

The invention is not limited to the automatic heel 1 described above. Thus, the individual elements of the heel unit 1 can be shaped differently and formed differently. In addition, for example, there is the possibility that the automatic heel unit 1 does not include a ski brake. There is also the possibility that the automatic heel unit comprises no, only one, or more than two climbing aids. There is also the possibility that the automatic heel unit does not comprise two spiral springs as elastic elements of the pretensioning device. Thus, the elastic elements may be formed differently, for example. Furthermore, there is the possibility that the pretensioning device has only one elastic element or else more than two elastic elements. Instead of the multi-part base unit 2 of the previously described automatic heel 1 exists In addition, the possibility that the base unit is formed only in one piece. In addition, there is the possibility that the heel machine has no walking position.

Apart from these variations, there is the possibility that the automatic heel unit does not allow for a safety release in the forward direction, that the automatic heel unit does not allow lateral safety release or that the heel automat does not allow any safety release at all.

FIG. 6 For example, shows a simplified schematic representation of a vertically oriented, in the ski longitudinal direction by another inventive heel unit 101 extending cross-section. In this illustration, the heel counter 101 is on the left front, while the heel counter 101 is on the right. The heel machine 101 is in FIG. 6 shown in the holding configuration. However, it is like the previously described automatic heel 1 in the Gehkonfiguration adjustable.

When in FIG. 6 shown heel unit 101, the base unit 102, for example, integrally formed. However, it could also be formed in several pieces as in the previously described automatic heel 1. Next is when in FIG. 6 shown heel machines 101 of the pin 127 of the radial bearing and thrust bearing not on the base unit 102, but arranged on the heel holder 103. For this purpose, the base unit 102 has the receptacle into which the pin 127 is inserted and is pivotally mounted about the vertically oriented, geometric pivot axis 107, whereby the heel holder 103 is mounted pivotably about the pivot axis 107 relative to the base unit 102 on the base unit 102.

In the example of the heel unit 101 off FIG. 6 the stub element 161 is slidably mounted in the base unit 102 in the ski longitudinal direction and is pressed by a coil spring 162 which forms an elastic element from the front to the back against the pin 127, whereby the positioning structure of the stub 162 is pressed against a counter-structure associated with the pin 127 when the heel holder 103 is in the first range of the adjustment travel to bias the heel holder 103 in the first region of the adjustment to its holding position. Due to the simplified schematic representation of a cross section in FIG. 6 are the two arms of the Not to be recognized. Since, in the present example, the spiral spring 162 is arranged in front of the stub element 101 in the longitudinal direction of the ski, the arms of the stub element 161 have no hollow space.

In a variant, the biasing device of the heel unit 101 according to FIG. 6 but also have two elastic elements, which are each arranged in the region of one of the arms of the push member 161. For example, the elastic elements may each be arranged in a cavity of one of the arms, as in the previously described automatic heel unit 1.

Regardless of these variants also has the pin 127 of the FIG. 6 shown heel machines 1 a on the circumferential axis about the pivot axis 107 outside of the pin 127 has a recess into which engages the two arms of the push member 161, whereby a movement of the push member 161 are blocked relative to the pin 127 in both directions along the pivot axis 127. Due to the mounting of the stub element 161 in the base unit 102, the radial bearing also forms a thrust bearing at the same time as in the previously described heel automaton 1.

In both described heel machines 1, 101, the movement of the push member 161 relative to the pin 127 may also be limited to a range of motion. In addition, in both front-end automata 1, 101 there is the possibility that the pin 27, 127 has no recess into which the arms of the stub element 61, 161 can engage.

Regardless of these variants, the in FIG. 6 heel unit 101 also shown a side safety release. The in FIG. 6 shown heel machine 101 also has as the previously described heel machine 1 two holding means 131.2, each with a holding element 133.2. The automatic heel unit 101 also allows a safety release in the forward direction. As a variant of these holding means 131.2, however, the automatic heel unit 101 can also have another holding means, such as a jaw.

In summary, it should be noted that an automatic heel is provided, which is compact in construction and allows stable storage of the heel holder on the base unit.

Claims (15)

1. Automated heel holder device (1, 101) for a ski binding, in particular a touring ski binding, comprising:

   a) a base unit (2, 102) for fastening to the surface of a ski;

   b) a heel holder (3, 103) having at least one holding means (31.1, 31.2, 131.2) for holding a ski boot in a heel region of the ski boot, wherein the automated heel holder device (1, 101) has a holding configuration in which the heel holder (3, 103) is situated in a holding position and the at least one holding means (31.1, 31.2, 131.2) can interact with the heel region of the ski boot that is held in the ski binding in such a manner that the heel region of the ski boot is held in a lowered position;

   c) a radial bearing by way of which the heel holder (3, 103) is mounted on the base unit (2, 102) so as to be pivotable, relative to the base unit (2, 102), about a geometrical pivot axis (7, 107) that is aligned so as to be substantially vertical and, proceeding from the holding position of said heel holder (3, 103), is thus pivotable about the pivot axis (7, 107) along a displacement path away from the holding position of said heel holder (3, 103), wherein the radial bearing has a pin (27, 127) which is configured on a first of the two units of base unit (2, 102) and heel holder (3, 103), and the radial bearing has a receptacle which is configured on a second of the two units of base unit (2, 102) and heel holder (3, 103), wherein the pin (27, 127) is inserted into the receptacle so as to be rotatable, on account of which the heel holder (3, 103) is mounted on the base unit (3, 103) so as to be pivotable, relative to the base unit (3, 103), about the pivot axis (7, 107); and

   d) a pre-tensioning installation (6) by way of which the heel holder (3, 103), in a first region of the displacement path, is capable of being pretensioned towards the holding position of said heel holder (3, 103), wherein the pre-tensioning installation (6) comprises an impact element (61, 161), having a positioning structure (63), and an elastic element (62.1, 62.2, 162), wherein the impact element (61, 161), by way of a force generated by the elastic element (62.1, 62.2, 162) is capable of being pushed against the pin (27, 127), on account of which the positioning structure (63) is capable of being pushed against a counter-structure (28) assigned to the pin (27, 127), when the heel holder (3, 103) is situated in the first region of the displacement path, so as to pre-tension the heel holder (3, 103) in the first region of the displacement path towards the holding position of said heel holder (3, 103), wherein the impact element (61, 161) has two arms (64.1, 64.2), wherein one of the two arms (64.1, 64.2) is in each case disposed on either side of the positioning structure (63);

   characterized in that the two arms (64.1, 64.2) on opposite sides of the pin (27, 127) reach from the positioning structure (63) up to a side of the pivot axis (7, 107) that faces away from the positioning structure (63).
2. Automated heel holder device (1, 101) according to Claim 1,
   characterized in that
   the pre-tensioning installation (6) comprises two elastic elements (62.1, 62.2), wherein one of the two elastic elements (62.1, 62.2) is in each case disposed in the region of each arm (64.1, 64.2) of the impact element (61, 161), and wherein the impact element (61, 161) by way of the force generated by the two elastic elements (62.1, 62.1) is capable of being pushed against the pin (27, 127), on account of which the positioning structure (63) is capable of being pushed against the counter-structure (28) assigned to the pin (27, 127), when the heel holder (3, 103) is situated in the first region of the displacement path, so as to pre-tension the heel holder (3, 103) in the first region of the displacement path towards the holding position of said heel holder (3, 103).
3. Automated heel holder device (1, 101) according to Claim 2,
   characterized in that
   the two arms (64.1, 64.2) of the impact element (61, 161) have in each case one cavity in which one of the two elastic elements (62.1, 62.2) is in each case disposed.
4. Automated heel holder device (1, 101) according to one of Claims 1 to 3,
   characterized in that
   the radial bearing contemporaneously forms an axial bearing.
5. Automated heel holder device (1, 101) according to Claim 4,
   characterized in that
   the pin (27, 127) on an external side of the pin (27, 127) that encircles the pivot axis (7, 107) has a clearance in which at least one of the two arms (64.1, 64.2) of the impact element (61, 161) engages, on account of which a movement of the impact element (61, 161) relative to the pin (27, 127) is blocked in one direction or in both directions along the pivot axis (7, 127), or is limited to a movement region.
6. Automated heel holder device (1, 101) according to one of Claims 1 to 5,
   characterized in that
   the impact element (61, 161) is mounted on the second of the two units of base unit (2, 102) and heel holder (3, 103) and, on account thereof, is impeded in an axial movement, in a direction along the pivot axis (7, 107), relative to the second of the two units of base unit (2, 102) and heel holder (3, 103) .
7. Automated heel holder device (1, 101) according to one of Claims 1 to 6,
   characterized in that
   the impact element (61, 161), conjointly with the second of the two units of base unit (2, 102) and heel holder (3, 103) is pivotable about the pivot axis (7, 107), relative to the first of the two units of base unit (2, 102) and heel holder (3, 103) .
8. Automated heel holder device (1, 101) according to one of Claims 1 to 7,
   characterized in that
   the impact element (61, 161) is disposed in the second of the two units of base unit (2, 102) and heel holder (3, 103).
9. Automated heel holder device (1, 101) according to one of Claims 1 to 8,
   characterized in that
   the heel holder (3, 103) in the holding position thereof is situated in the first region of the displacement path.
10. Automated heel holder device (1, 101) according to Claim 9,
    characterized in that
    when the heel holder (3, 103) is situated in the first region of the displacement path a spacing between the positioning structure (63) and the pivot axis (7, 107) is a function of the position of the heel holder (3, 103) on the displacement path, wherein the spacing is larger the further the heel holder (3, 103) on the displacement path is from the holding position of said heel holder (3, 103).
11. Automated heel holder device (1, 101) according to one of Claims 1 to 10,
    characterized in that
    the heel holder (3, 103), proceeding from the holding position of said heel holder (3, 103) along the displacement path, is pivotable away from the holding position of said heel holder (3, 103) in both directions about the pivot axis (7, 107).
12. Automated heel holder device (1, 101) according to one of Claims 1 to 11,
    characterized in that
    the automated heel holder device (1, 101) has a walking configuration in which the heel holder (3, 103) is situated in a walking position and the heel region of the ski boot that is held in the ski binding is released from the heel holder (3, 103) and can be lowered towards the ski until the heel region of the ski boot contacts the automated heel holder device (1, 101) or the ski, and can be raised from the ski again without being arrested herein in the lowered position by the heel holder (3, 103).
13. Automated heel holder device (1, 101) according to one of Claims 1 to 12,
    characterized in that
    the automated heel holder device (1, 101) enables safety triggering.
14. Ski binding having an automated heel holder device (1, 101) according to one of Claims 1 to 13.
15. Ski having a ski binding according to Claim 14.

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