EP3103525B1 - Heel binding - Google Patents

Description

Technical area

The invention relates to an automatic heel unit for a ski binding, comprising a jaw for holding a ski boot in a heel region of the ski boot, a jaw carrier, on which the jaw is movably mounted, and an elastic element. The automatic heel has a holding configuration in which the jaw is in a holding position and can interact with the heel region of the ski boot held in the ski binding in such a way that the ski boot is locked in a lowered position. Furthermore, the automatic heel unit has a triggering configuration in which the jaw is in a release position and the heel area of the ski boot is released from the jaw. The jaw is movable from its holding position to its release position and back in an adjustment relative to the jaw carrier, wherein the adjustment path has a first region in which the jaw by the elastic Element with a force to its holding position is stretched out and the heel unit comprises a guide means by which the jaw along the displacement relative to the jaw carrier from its holding position to its release position and is slidably mounted.

State of the art

Heel machines of ski bindings have the task of ensuring a reliable fixation of the heel area of the ski boot on the ski in a holding configuration. They also have the task of releasing the heel area of the ski boot in a release position, at least for an entry into the ski binding and for an exit from the ski binding. To increase the safety of the skier, the heel machines can also provide 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 keeps the heel area of the ski boot locked even in the event of bumps acting on the ski boot, the ski binding or the ski in the lowered position as long as the energy of the bumps does not exceed a predetermined value , However, if the energy of a shock exceeds this predetermined value, the heel machine releases the heel area of the ski boot. It is irrelevant whether the automatic heel is after the release of the ski boot in the release position or not.

In addition to these tasks, the type of tasks to be performed by a heel automaton usually depends on what function the ski binding to which the heel machine belongs is intended to 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 holding configuration. In contrast, cross-country and telemark bindings usually have to keep the ski only pivotable about an axis aligned in the ski direction axis. On the other hand, touring ski bindings must have both a holding configuration and, in addition, an ascending climb configuration. In such a climb configuration is the ski boot, as in cross-country skiing and telemark binding, is pivotable about an axis oriented in the direction of the ski and can be lifted off the ski in the heel area, whereby a joint movement between the ski boot and the ski is made possible for walking.

If a holding configuration is additionally desired in a cross-country skiing and telemark binding, an automatic heel strap is additionally required, by means of which the ski boot can be lowered in its heel area towards the ski, and which can release the heel area of the ski boot for walking in the ascent configuration.

Touring ski bindings in turn are subdivided into three types. The first type of touring ski bindings comprises a ski boot carrier to which the ski boot is held by binding jaws. In the ascending configuration, the ski boot carrier with the ski boot held therein can be pivoted relative to the ski. In contrast, in the holding configuration, the ski boot carrier is locked in a substantially ski-parallel alignment, as a result of which the ski boot held on the ski boot carrier is also correspondingly fixed on the ski. A representative member of this type of touring ski bindings is, for example, in WO 96/23559 A1 (Fritschi AG Apparatebau). The second type of touring ski bindings, 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 firmly attached to the ski in a distance from the front automatic machine adapted to a ski boot sole length and locks the ski boot in the heel area in the holding configuration. In the ascent configuration, however, the heel of the ski boot is released from the heel counter, so that the ski boot can be lifted off the ski and swiveled around the storage on the front automat. A representative member of this type of touring ski bindings is, for example, in EP 2 762 209 A2 (Marker Germany GmbH). The third type of touring ski bindings, like the first type, includes a ski boot carrier on which the ski boot is held in the ascent configuration. For this purpose, a binding jaws is provided on the front of the ski boot carrier, while only one retaining element is provided on the rear of the ski boot carrier. A rear binding jaw, which can fix the heel of the ski boot in the holding configuration on the ski, is not arranged on the ski boot carrier, but directly on the ski. Therefore, the ski boot is at this third type of touring ski bindings in the ascent configuration by the front binding jaw and the holding member fixed to the ski boot carrier, while being held in the holding configuration by the front and the rear binding jaws with its sole substantially skiparallel aligned. A representative member of this type of touring ski bindings is, for example, in CH 706 664 A1 (Fritschi AG - Swiss Bindings).

Thus, heel machines, which have a holding configuration and a release configuration, are required for downhill ties and for touring ski bindings and possibly also for cross-country or telemark bindings.

The US 2011/049821 A1 (Trabucchi) discloses a multi-position heel part for touring ski binding. The heel part comprises a slide which in the rear region comprises a body with a cavity for receiving an elastic element comprising a spring. The heel part comprises a kinematic chain comprising a lever with cams on its lower end and a front pivoting fork which can cooperate with the heel area of a shoe. The lever and the rotatable fork are rotatable about a transverse pin. The heel piece is brought into an open position by pivoting the lever down so that the fork is retracted upwards with a combined movement of the cross pin and cams.

The DE 21 09 356 A1 (Breuer) discloses a spring tensioning device for safety heel cords. The safety heel tie uses a force-displacement transmission as a spring-biased motion transferring means between a spring member and a compression member which has an increasing or constant and / or decreasing clamping force over all or part of the tensioning path. This applies to both the input and the clamping force.

The FR 2 493 711 A1 (TMC Corp) relates to a heel holder for a safety ski binding for touring and for downhill, which has a relative to the ski fixable bracket and a hold-down bearing housing. The housing can be pivoted up against the force of a spring, wherein the spring is formed in a housing Spring chamber is arranged and fixed to the housing with its one end and is supported at its other end to an adjustable, held on the bearing block abutment. The abutment is pivotable about an axis arranged on the bearing block, wherein a control bolt held on the housing along a respective arranged on the two side walls of the bearing block cam is feasible. In the event of an unintentional release operation, the control bolt is forced along the control cams. At the same time, the hold-down is pivoted upwards with the housing and pushed upwards. If the control bolt has exceeded the triggering point of the control cam, the heel holder pivots into its open position and a ski boot inserted into the binding is released. An example of a heel piece, which belongs to the technical field mentioned above, is in the WO 96/23559 A1 (Fritschi AG Apparatebau). This automatic heel comprises a jaw, which is in the holding configuration of the heel unit in a holding position and the sole of the ski boot in the heel area above and laterally reaches slightly forward to support the ski boot upwards and sideways. As a result, the ski boot is locked in a lowered position. In contrast, in the trigger configuration of the heel counter, the heel area of the ski boot is released from the jaw. In this case, the jaw is movable from its holding position to its release position and back on an adjustment relative to a jaw carrier. Starting from the holding position of the baking, this adjustment path first leads vertically upwards. In this vertical range of the adjustment of the jaw is biased by a vertically down pressing spring to its holding position. As soon as the jaw, starting from its holding position along the adjustment path, is moved sufficiently far upwards against the spring force, the upper region of the jaw can be pivoted backwards so that the heel region of the ski boot is released from the jaw. This sequence of movements of the baking also takes place with a safety release in the forward direction. Thus, the energy that can be absorbed by the heel counter upon impact with the ski boot, ski binding or ski before it releases a forward safety release depends on the force of the spring as well as the length of the vertical range of travel.

The disadvantage of this automatic heel is that it is not designed very compact. In addition, its design requires a larger and more solid construction if it is to be able to absorb a large amount of energy in the event of a collision with the ski boot, the ski binding or the ski before a safety release occurs. Likewise, its construction requires an even larger and more massive construction if it is to be able to fulfill further tasks which, as mentioned above, require some types of ski binding.

For the description of ski 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 some terms that do not contain the word "ski" refer to the reference system of the (fictional) ski. 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.

Presentation of the invention

The object of the invention is to provide a the aforementioned technical field belonging heel machines, which is compactly constructed.

The solution of the problem is defined by the features of claim 1. According to the invention is at each position of the baking in the first region of the adjustment of the elastic member for tensioning the jaw to its holding position at an acute angle in a range of 20 ° to 70 ° aligned to an orientation of Verstellwegs at the respective position of the jaw, wherein the jaw is in its holding position in the first region of the adjustment and the first range of the displacement is a contiguous range. It is irrelevant whether the first region of the adjustment assumes a contiguous portion of the adjustment or the entire adjustment.

Within the first range, the adjustment path is preferably linear. This means that the center of gravity of the jaw is moved relative to the jaw carrier when the jaw is moved within the first range of the displacement relative to the jaw carrier. Whether the first region of the adjustment path is straight or curved or has both rectilinear and curved sections is irrelevant. It is also irrelevant whether the course of the adjustment travel within the first range of the adjustment travel is considered as the course of the distance traveled by the center of gravity of the jaw relative to the jaw carrier or as the course of the path traveled by another reference point or reference region of the jaw relative to the jaw carrier. Regardless, the first portion of the adjustment path may be straight or curved. In both cases, the alignment of the adjustment path at a certain position of the jaw within the first range of the adjustment corresponds to a tangent which is applied to the adjustment path at the position of the jaw. In each case, the position of the reference point or reference area considered for determining the course of the first range of the adjustment path in the first range of the adjustment path is to be regarded as the position of the jaw in the first range of the adjustment path. Thus, the orientation of the adjustment path does not depend on whether the jaw retains its orientation relative to the jaw carrier during a movement along the first region of the adjustment path or changes due to a rotational movement relative to the jaw carrier.

However, if the first range of the travel is linear and curved, the orientation of the first range of travel will depend on the position at which the shoe is in the first range of travel. Conversely, if the first range of travel is linear and straight, the alignment of the first range of travel at all possible positions of the jaw remains the same.

Regardless of whether the first range of the adjustment travel is straight or curved, the force for tensioning the jaw to its holding position generated by the elastic element may change its orientation depending on the position of the jaw in the first range of the adjustment. But the force generated by the elastic element for the voltage of the baking to its holding position can also be independent of the position of the baking in the first region of the adjustment. In addition, the force generated by the elastic element can be transmitted to the clamping of the baking to its holding position directly or indirectly on the jaws. In this case, the force ultimately acting on the jaws can be aligned in a same direction as the force generated by the elastic element. But the force generated by the elastic element can also be deflected so that the force ultimately acting on the jaws in a different direction than the force generated by the elastic element. Regardless of this, at any position of the jaw in the first range of travel, the jaw tensioning force generated by the elastic element is not aligned parallel to the orientation of the travel at that jaw position and always at an acute angle, i. oriented at an angle in a range of 20 ° to 70 ° to the orientation of the adjustment path at this position. Here, the angle between the force and the orientation of the adjustment is the smallest angle between the direction in which the force acts and the given by the tangent and thus by a straight line alignment of the adjustment.

The solution according to the invention has the advantage that the elastic element generates its force at an acute angle to the orientation of the first region of the adjustment path. Accordingly, the elastic element can be aligned at an acute angle to the first region of the adjustment. As a result, the device with which the movement of the baking is made possible on the adjustment relative to the jaw carrier, best possible be separated from the elastic element. Therefore, this device can be constructed more compactly. In addition, if necessary, a larger elastic element can be used without the whole heel automat would have to be built significantly larger and more massive. If the heel counter a If necessary, it can also be used with a compact heel counter for a push on the ski boot, the ski binding or The ski will receive more energy before a safety release occurs. Accordingly, it allows the skier a sportier driving style, as it is used for example in the freeride area.

Preferably, the jaw is designed such that it can embrace the sole of the ski boot in the heel area above and laterally reaching somewhat forward. This has the advantage that the jaw can prevent the heel area of the ski boot in the holding configuration of the heel unit from moving freely upwards or laterally, thereby locking the heel area of the ski boot in the lowered position in a simple manner. It is irrelevant whether the baking is made in one piece or several pieces.

In one variant, the jaw but also the rear end of the ski boot sole in the heel area of the ski boot only above or just laterally reach something forward. It is also irrelevant whether the jaw is made in one piece or several pieces.

Alternatively, however, the jaw may also comprise one or more elements which may engage in one or more recesses in the heel region of the ski boot. This can also be achieved that the heel area of the ski boot can be locked in the holding configuration of the heel unit in a simple manner in the lowered position. To achieve this advantage, it is irrelevant whether the jaw is made in one piece or in several pieces.

Preferably, the baking on a shell shape. This has the advantage that the jaw in a simple manner, the sole of the ski boot in the heel area above and laterally reaching slightly forward to prevent the heel area of the ski boot at a free movement upwards or in the lateral direction and thereby the heel area of the ski boot in the lowered position. It is irrelevant whether the baking is made in one piece or several pieces.

Alternatively, there is also the possibility that the jaw is shaped differently.

Preferably, the heel unit allows a safety release. This has the advantage of increasing safety for the skier. In a first preferred variant thereof, the automatic heel unit enables a safety release in the forward direction. In a second preferred variant, however, the automatic heel unit allows lateral safety release. In a third preferred variant, however, 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 safety release, the jaw in the first region of the adjustment is preferably biased by the elastic member with a force to its holding position. This has the advantage, irrespective of the type of safety release, that an optimally controlled safety release can be made possible by constructing the automatic heel so that the jaw must first be moved against the force generated by the prestressed elastic element along the first range of the displacement until it comes to a safety release. Preferably, the bias of the elastic element is adjustable. This makes it possible to adjust the energy that can be absorbed by the heel counter in the event of a collision with the ski boot, the ski binding or the ski, before a safety release is triggered. In a variant of this, however, the bias of the elastic element is not adjustable. This makes the heel automat easier to construct.

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

Advantageously, at each position of the jaw in the first region of the adjustment, the force generated by the elastic element for tensioning the jaw to its holding position in a range of 40 ° to 70 °, preferably in a range of 50 ° to 70 ° to align the adjustment aligned to the respective position of the baking. This has the advantage that the construction is the device with which the movement of the Baking on the adjustment is made possible relative to the jaw carrier can be optimally separated from the construction of the elastic element. Accordingly, if necessary, a larger elastic element can be used without the whole automatic heel machine would have to be built significantly larger and more massive. If the automatic heel unit enables a safety release, it is therefore possible, if required, to absorb more energy in the event of a shock to the ski boot, the ski binding or the ski with a compactly designed heel unit before a safety release occurs.

Alternatively, however, there is also the possibility that at least one position of the jaw in the first region of the adjustment the force generated by the elastic element for tensioning the jaw to its holding position at a different acute angle in a range of 20 ° to 70 ° to the alignment the adjustment is aligned with the respective position of the jaw.

According to the invention, the automatic heel unit comprises a guide device, by means of which the jaw along the adjustment path is mounted relative to the jaw carrier from its holding position into its release position and back. This has the advantage that the jaws can be stably supported movably on the jaw carrier, which simplifies the construction of the heel counter.

Alternatively, the heel machine may not include such a guide means. Depending on the design of the heel piece, this can have the advantage that the heel piece can be built more easily.

If the automatic heel unit comprises a guide device, the guide device is preferably a forced control of the baking. This has the advantage that the jaw is stably movably mounted along the adjustment path relative to the jaw carrier. Accordingly, the ride comfort and safety for the skier can be increased. In addition, this makes it possible that the force generated by the elastic element, which acts directly or indirectly and possibly deflected on the jaws, even at an angle of more than 0 ° to align the adjustment at the respective position of the jaw aligned on the jaws can act because the jaw is held securely by the positive control on the adjustment. This has the advantage that the construction of the Heel counter can be simplified. In addition, this has the advantage that the force generated by the elastic element can be transmitted understood on the jaws. As a result, the area of the elastic member which transmits the force generated by the elastic member for baking lays back a shorter distance than the jaw when the jaw is moved along the first range of the displacement. This is particularly advantageous when the jaw is biased in the first region of the adjustment to its holding position and is in the holding position in the first region of the adjustment. In this case, the jaw can already be stretched optimally back to the holding position with a slight movement away from its holding position, because the elastic element generates a large force already at the beginning of the movement in order to tension the jaws toward its holding position. This increases ride comfort and safety for the skier. In particular, this can also be optimized at most by the automatic heel safety release enabled.

Alternatively, however, there is also the possibility that the guide device is not a forced control of the baking.

If the automatic heel unit comprises a guide device, the jaw is advantageously mounted by the guide means along the displacement relative to the jaw carrier from its holding position to its release position and displaced back. This has the advantage that in a simple way a forced control of the baking can be achieved. It does not matter whether the jaw in addition to a translational movement also performs a rotational movement or not.

In a preferred variant of this, the jaw is pivotally supported by the guide device along the adjustment path relative to the jaw carrier from its holding position to its release position and back about a pivot axis. This also has the advantage that in a simple way a forced control of the baking can be achieved.

Alternatively, however, there is also the possibility that the jaw is differently supported by the guide means along the displacement relative to the jaw carrier from its holding position to its release position and movable back.

Preferably, the jaw on an effective range, in which the force generated by the elastic element for tension of the baking is transmitted to its holding position physically on the jaws. Regardless of whether the power transmission is direct or indirect, the effective range comprises all points on the surface of the jaw, at which a physical force transmission of the force generated by the elastic element for clamping the jaw to its holding position in at least one position of the jaw in the first region the adjustment takes place. This has the advantage that the force of the elastic element can be optimally transferred to the jaws. If the automatic heel unit therefore enables a safety release, the effective range also increases the reliability of the safety release.

If the jaw has an effective range in which the force generated by the elastic element for the tension of the jaw is physically transferred to its holding position on the jaws, preferably the power transmission from the elastic element to the jaws takes place indirectly via at least one intermediate element. For example, this intermediate element may be a piston, by which at each position of the jaw in the first region of the adjustment, the force generated by the elastic element for tensioning the baking to its holding position directly or indirectly to the effective range of the baking and thus on the jaws is transmitted. However, there is also the possibility that the intermediate element is an intermediate element other than a piston or that another intermediate element is provided in addition to the piston. This other or further intermediate element may for example be a pawl, ie a lever pivotably mounted about an axis. Such a pawl, for example, mounted pivotably about an axis on the jaw carrier and between the effective range of the jaw and the elastic member or the possibly existing piston be arranged, which generated by the pawl at each position of the jaw in the first region of the adjustment of the elastic element Force is transferred to the voltage of the baking to its holding position on the effective range of the baking and thus on the jaws. Instead of a pawl, the other or further intermediate element can also be designed differently. For example, the other or further intermediate element may be a pivotally mounted on the jaw member.

In a variant of this, however, there is also the possibility that the power transmission from the elastic element on the jaws directly, d. H. done without intermediate element.

Alternatively, there is also the possibility that the jaw has no such effective range.

Advantageously, the automatic heel unit comprises a piston, by which the force generated by the elastic element for tensioning the baking is transferred to its holding position on the effective range of the baking and thus on the jaws at each position of the baking in the first region of the adjustment. Regardless of whether the piston acts directly or indirectly on the effective range of the baking, this has the advantage that the force generated by the elastic element can be optimally transmitted to the jaws.

Alternatively, however, there is also the possibility that the automatic heel unit does not include such a piston.

If the automatic heel unit comprises a piston, preferably at each position of the jaw in the first range of travel of the elastic element, the piston will move in a same direction as the orientation of the force generated by the elastic element to tension the jaw to its holding position against the effective area of the jaw pressed. Regardless of whether the force generated by the elastic element acts directly or indirectly on the piston, this has the advantage that the force can be optimally transmitted to the jaws.

Alternatively, however, there is also the possibility that the piston at least one or at all positions of the jaw in the first region of the adjustment of the elastic element in a direction other than the orientation of the force generated by the elastic element for clamping the jaw to its holding position against the Effective range of the baking is pressed. For this purpose, for example, a deflecting element between the elastic element and the piston may be arranged, which deflects the force generated by the elastic element and transmits to the piston.

If the automatic heel unit comprises a piston, the piston preferably has an active surface, via which at each position of the jaw in the first region of the adjustment the force generated by the elastic element is transmitted directly or indirectly to the jaws for tensioning the jaw to its holding position. It is irrelevant whether the active surface is flat or curved. Preferably, however, this effective surface is aligned at right angles to the voltage generated by the elastic element. This has the advantage that the force generated by the elastic element can be optimally transmitted to the jaws. But there is also the possibility that the active surface is oriented at a different angle than a right angle to the force generated by the elastic element or that the effective surface is curved. By choosing the orientation as well as a possible curvature of the active surface, for example, the force generated by the elastic element can be translated in a desired function of the position of the jaw on the first region of the adjustment or reduced transmitted to the cheeks. As a result, the force which has to be overcome during a movement of the jaw along the first region of the adjustment path away from its holding position can be adjusted depending on the position of the jaw in the first region of the adjustment path. Therefore, if it is a spring, for example, the elastic element, the force transmitted to the jaws may have a different course than the spring characteristic. As a result, by means of a suitable choice of the orientation and possibly the curvature of the effective surface, a safety release made possible by the automatic heel unit can be optimized by increasing the force to be overcome towards the end of the movement of the jaw along the first range of the adjustment path away from the holding position. Also can be increased by a suitable choice of the orientation and possibly the curvature of the effective surface of the ride comfort for the skier by the force to be overcome at the beginning of the movement of the baking is increased away from his stop, because then the ski boot is held firmly in the heel counter and can be moved only slightly relative to the heel counter at weaker forces.

If the piston has an effective surface and the jaw has an effective region, then the effective surface of the piston preferably cooperates with the effective region of the jaw. It can by the shape of the active surface and the orientation of the effective surface against the force generated by the piston and by the shape of the effective range and the orientation of the effective range relative to the orientation of the first portion of the displacement translated the force generated by the elastic element translated or underpinned transferred to the jaws. In this case, the ratio or reduction can be adjusted depending on the position of the baking within the first range of the adjustment. This allows a modification of the course of the force acting on the jaws in comparison to the course of the force generated by the elastic element. Therefore, if it is a spring, for example, the elastic element, the force transmitted to the jaws may have a different course than the spring characteristic. As a result, a safety release made possible by the automatic heel unit can be optimized by increasing the force to be overcome towards the end of the movement of the jaw along the first region of the adjustment path away from the holding position. Also, the ride comfort for the skier can be increased by the force to be overcome at the beginning of the movement of the baking is increased away from his stop, because then the ski boot is held firmly in the heel unit and can be moved only slightly relative to the heel counter at weaker forces , To achieve these two goals, for example, as already mentioned, a correspondingly shaped pawl may additionally be arranged between the piston and the effective region of the jaw.

Alternatively, however, there is also the possibility that the piston has no such effective area.

If the jaw has an effective range in which the force generated by the elastic element for tension of the jaw is physically transferred to its holding position on the jaws, so regardless of whether the heel machine has a piston or not, the displacement preferably the way on which the effective range of the baking during adjustment of the baking is moved from its holding position to its release position and back. Accordingly, the effective range is to be regarded as a reference range. Moreover, the course of the path covered by the effective region of the baking during a movement of the baking along the first region of the adjustment path relative to the jaw carrier is the course of the adjustment path within the first region of the jaw Adjustment to look at. The path of the effective range as an adjustment path has the advantage that the effective range is moved along the adjustment path along the entire adjustment path during a movement of the jaw. In this case, the effective range is moved at least within the first range of the adjustment in each case against or with the force generated by the elastic element to the voltage of the jaw to its holding position. If the heel unit enables a safety release, this can optimize the safety release.

Alternatively, there is also the possibility that the adjustment path is the path on which the center of gravity or another reference point or reference region of the jaw is moved from its holding position to its release position and back when adjusting the jaw. Accordingly, the center of gravity or the other reference point or reference region of the jaw is to be regarded as a reference point or reference region. In addition, the course of the distance traveled by the center of gravity or other reference point of the jaw during a movement of the jaw along the first region of the displacement relative to the jaw carrier is to be considered as the course of the adjustment within the first range of the adjustment.

According to the invention, the jaw is in its holding position in the first region of the adjustment path. This has the advantage that the jaw is held by the force generated by the elastic element in its holding position. Accordingly, the force generated by the elastic element must be overcome in order to move the jaw away from its holding position in the direction of the release position. As a result, the heel area of the ski boot in the holding configuration of the heel unit is optimally locked in the lowered position. This results in both the ride comfort and safety for the skier is increased.

Alternatively, however, there is also the possibility that the jaw is in its holding position outside the first range of Verstellwegs.

According to the invention, the first region of the adjustment path is a contiguous region. If the automatic heel unit also allows a safety release, this has the advantage that the safety for the skier can be increased, because the entire, contiguous first portion of the adjustment path for absorbing the energy of a shock to the ski boot, the ski binding or the ski can be used.

Alternatively, however, there is also the possibility that the first region of the adjustment is not a contiguous region, but consists of two or more separate sections of the adjustment.

Advantageously, the first region of the adjustment path is oriented substantially vertically. This means that at each position of the jaw in the first region of the adjustment path, a tangent applied to the adjustment path at this position has a vertically oriented component. In addition, if the automatic heel unit allows a safety release in the forward direction, this has the advantage that the safety for the skier is increased, because in a fall the heel area of the ski boot moves along the first area of the adjustment path essentially vertically upwards away from the ski during which energy from the fall is absorbed by the heel counter until it comes to a safety release.

In a first preferred variant thereof, at each position of the jaw in the first region of the adjustment path, a tangent applied to the adjustment path at this position has a vertically oriented component which is longer than the longest horizontally oriented component of the tangent, more preferably longer than three times the length is the longest possible horizontally oriented component of the tangent. If the automatic heel unit also allows a safety release in the forward direction, this has the advantage that the safety for the skier is further increased.

In a second preferred variant thereof, the first region of the adjustment path is vertically aligned. If the automatic heel unit also allows a safety release in the forward direction, this has the advantage that the safety for the skier is optimally increased.

Alternatively, however, there is also the possibility that the first range of the adjustment is not vertical, but horizontally aligned. This can be advantageous, for example, if the automatic heel unit allows lateral safety release.

Preferably, the automatic heel unit comprises an opening lever, by the operation of the automatic heel unit of the holding configuration in the release configuration and back is adjustable. This has the advantage that the automatic heel unit can be adjusted manually from the holding configuration to the release configuration and back in a simple manner.

Alternatively, however, there is also the possibility that the automatic heel unit does not include such an opening lever.

Preferably, the automatic heel unit comprises an entry element, which can be actuated by lowering the heel area of the ski boot down towards the ski in order to move the heel unit from the release configuration into the retention configuration. This has the advantage that the skier can easily get into a ski binding comprising the heel machine.

Alternatively, however, there is also the possibility that the automatic heel unit does not include such an entry element.

Advantageously, the automatic heel unit comprises a base element for mounting the automatic heel unit on the top of a ski. It is irrelevant whether the jaw carrier firmly connected to the base member, made in one piece with the base member or movable relative to the base member is mounted directly or indirectly on the base member. Regardless, the base element has the advantage that the heel counter can be easily mounted on the ski.

Alternatively, however, there is also the possibility that the automatic heel unit has no such base element.

A ski binding preferably comprises an automatic heel piece according to the invention.

Preferably, this ski binding is a touring ski binding. It is irrelevant to which of the three types of touring ski binding mentioned above. If the touring ski binding is a touring ski binding of the aforementioned second or third type, the heel automat advantageously has at least one Ascending configuration in which the heel area of the ski boot is released from the shoe so that the heel area of the ski boot can be lowered from the top to the ski and lifted off the ski upwards again. In this case, the heel area lowered toward the ski can each be supported on the ski or on one or more elements of the heel unit, without it being locked in the lowered position by the jaw. The advantage of using the heel unit in a touring ski binding is that the heel unit can take on additional functions required for touring ski binding, although the heel unit can still be constructed compactly. These additional functions may be, for example, an adjustability between the holding configuration of the heel unit or the downhill position of the touring ski binding and the ascent position of the touring ski binding. In this case, the heel unit, in addition to the holding configuration and the triggering configuration, has at least one ascent configuration. If the automatic heel comprises one or more climbing aids, it may also have more than one ascending configuration.

Alternatively, there is also the possibility that a ski binding with the heel is not a touring ski binding, but a different kind of ski binding.

Preferably, 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, in welcher sich ein Backen des Fersenautomaten in seiner Haltestellung befindet,

Fig. 2

eine Schrägansicht eines vertikal ausgerichteten, in Skilängsrichtung verlaufenden Schnitts durch den Fersenautomaten in der Haltekonfiguration,

Fig. 3

eine Schrägansicht eines vertikal ausgerichteten, in Skilängsrichtung verlaufenden Schnitts durch den Fersenautomaten in einer Auslösekonfiguration, in welcher sich der Backen in seiner Auslösestellung befindet, und

Fig. 4

eine Schrägansicht eines vertikal ausgerichteten, in Skilängsrichtung verlaufenden Schnitts durch den Fersenautomaten in einer Aufstiegskonfiguration.

The drawings used to explain the embodiment show:

Fig. 1

an oblique view of an inventive heel unit in a holding configuration in which a baking of the heel unit is in its holding position,

Fig. 2

an oblique view of a vertically oriented, running in the longitudinal direction section through the heel unit in the holding configuration,

Fig. 3

an oblique view of a vertically oriented, running in the longitudinal direction section through the heel unit in a release configuration in which the jaw is in its release position, and

Fig. 4

an oblique view of a vertically oriented, running in the longitudinal direction section through the heel unit in a climbing configuration.

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 the holding configuration. A line running horizontally from front to back in the longitudinal direction through the automatic heel unit 1 runs in the figure from bottom left to top right. This line runs parallel to the ski longitudinal direction of a ski, not shown here, on which the automatic heel unit 1 can be mounted. In the figure at the bottom left corresponds to the heel machine 1 front. Next correspond in the figure above and below also at the heel unit 1 above and below.

The automatic heel unit 1 comprises a jaw 2 for holding a ski boot, not shown here, in the heel region of the ski boot, a back support 3, a base element 4 and an opening lever 5. The base element 4 can be mounted on a ski by being bolted to the ski, for example. On the base member 4, the jaw carrier 3 is arranged, while the jaws 2 is mounted on the jaw carrier 3 and can be moved by a movement of the opening lever 5 from a holding position to a release position and back on a displacement relative to the jaw carrier 3.

If the heel counter 1 is used as a heel machine of a ski binding and as in FIG. 1 shown in its holding configuration, the jaw 2 is in the holding position. In this holding position, the jaw 2 can lock the heel area of a ski boot held in the ski binding in a lowered position.

FIG. 2 shows an oblique view of a vertically oriented, running in the longitudinal direction section through the heel unit 1 in the holding configuration. As a result, the construction of the heel unit 1 can be seen better. It can thus be seen that the jaw 2 is mounted on the jaw carrier 3 with a lower rod 10 oriented horizontally in the transverse direction and an upper rod 11 aligned horizontally in the transverse direction. For this purpose, the lower rod 10 is aligned horizontally in Skiquerrichtung and passes through a vertically aligned slot 12 in the jaw carrier 3 (see FIG. 3 ). This elongated hole 12 forms a vertically oriented positive guide for the lower rod 10. The upper rod 11, however, extends in a vertically downwardly into the jaw carrier 3 recessed notch 13. This notch 13 forms a vertical positive guidance for the upper rod 11. In contrast to the slot 12, which is bounded below and above and thus allows movement of the lower bar 10 only within a limited range, the notch 13 limits movement of the upper bar 11 only downwards. The limitation of the movement of the lower rod 10 upwardly through the slot 12, however, requires that the jaw 2 can only be raised just so far up until the upper rod 11 is just lifted out of the notch 13 and along one to the upper rear edge the groove 13 subsequent groove 14 can be moved backwards down.

In the FIG. 2 the automatic heel unit 1 is shown in the holding configuration and thus the jaws 2 in its holding position. In this configuration, the lower bar 10 of the jaw 2 at the lower end of the slot 12 and the upper bar 11 of the jaw 2 at the lower end of the notch 13. To move the jaw 2 in its release position, the jaw 2 is raised upward , In this case, the jaw 2 is due to the leadership of the lower and upper bars 10, 11 first moved without rotational movement upwards. Only when the lower rod 10 is moved to the upper end of the slot 12, the upper rod 11 is lifted over the rear upper edge of the notch 13. Only then can the baking 2 are tilted with its upper portion to the rear in its release position by the upper bar 11 of the groove 14 is moved along backwards down. In this movement, the lower rod 10 is again moved slightly in the slot 12 down. As this movement shows, thus forming the slot 12 with the guided therein lower rod 10 and the notch 13 and the groove 14 with the guided therein upper rod 11 a guide device through which the jaws 2 along the adjustment relative to the jaw carrier 4 of its holding position is stored in its release position and movable back. In this case, the guide device is a forced control of the baking 2.

Inside the jaw carrier 3, a block 15 with a trapezoidal cross-section about the longitudinal axis of the lower rod 10 is rotatably mounted on the lower rod 10. This block 15 has a forwardly facing surface whose normal is aligned horizontally facing forward. With this surface, the block 15 is supported against a front inner wall of the jaw carrier 3, so that the block 15 can not rotate freely about the lower rod 10. Next, the block 15 has a rearwardly facing surface, the normal is tilted with respect to a horizontal by 30 ° upwards.

The jaw carrier 3 has, in its rear region a recess with a circular cross-section. A longitudinal axis of this recess is seen from the rear to the front by 30 ° down. In this recess, a piston 16 is movably mounted, which rests with its front side on the rearwardly facing surface of the block 15. In the interior of the piston 16, a spring 17 is inserted as an elastic element. This spring 17 is supported with its front end against the piston 16. With its rear end, the spring 17 is supported against a threaded sleeve 18, which is screwed with its thread in the recess in the jaw carrier 3. When the heel counter 1 as in FIG. 2 shown in the holding configuration, the piston 16 is biased by the prestressed spring 17 with a force against the block 15. In this case, the bias of the spring 17 can be adjusted by the threaded sleeve 18 is screwed more or less far into the recess in the jaw carrier 3. Due to the bias of the spring 17 and the vertical positive guidance of the jaw 2 on the jaw carrier 3 of the jaws 2 is thereby pressed down. The force with which the jaw 2 is pressed down, is half as large as that generated by the spring 17 Force. The reason for this is that the piston 16 has a forwardly directed active surface, which is oriented perpendicular to the force generated by the spring 17. Since the force generated by the spring 17 is directed downwards by 30 ° with respect to a horizontal, the effective area of the piston 16 is also directed downward by 30 ° relative to a horizontal. This also means that the normal of the effective area of the piston 16 is inclined by 30 ° downwards. It follows that the active surface of the piston 16 is aligned at an angle of 60 ° to the vertical freedom of movement of the block 15. Therefore, when the block 15 is moved downward by one unit length or more, the piston 16 is moved obliquely forward of the half unit or obliquely rearward upward. Conversely, the block 15 is moved up or down by two units of length when the piston 16 is moved obliquely forward or downward at the top by a unit of length. Therefore, the force with which the jaw 2 is pressed down, half the size of the force generated by the spring 17. In this case, the force transmission from the active surface of the piston 15 to the jaws 2 via the rearwardly facing surface of the block 15. Thus, the area of the rearwardly facing surface of the block 15, on which the active surface of the piston 16 at least at a position of the baking 2 acts on the first region of the adjustment, an effective range of the jaw 2, in which the force generated by the spring 17 for tension of the jaw 2 is physically transferred to its holding position on the jaws 2.

FIG. 3 shows an oblique view of a vertically oriented, running in the ski longitudinal section through the heel unit 1 in the release configuration in which the jaw 2 is in its release position.

To the heel machine 1 of the in FIGS. 1 and 2 shown holding configuration in the FIG. 3 Adjust shown release configuration, the jaw 2 is moved along the adjustment from its holding position to its release position. For this purpose, the jaw 2 is first moved upwards. This can be done, for example, by the heel area of a heel machine 1 held in the ski boot or by a movement of the obliquely back upwards facing free end of the opening lever 5 down. In both cases, the lower rod 10 is moved with the block 15 upwards, whereby the piston 16 is pressed against the bias of the spring 17 obliquely back up. Only when the jaw 2 is moved sufficiently far up, the jaw 2 can be tilted as already described with its upper portion to the rear by the upper bar 11 of the groove 14 is moved along back to the bottom. In this case, the lower rod 10 is moved together with the block 15 again slightly downwards. In this movement sequence, the jaw 2 is thus first moved upward along a vertically oriented first area of the adjustment path against the force generated by the spring 17. However, as soon as the upper rod 11 is moved upwardly beyond the notch 13, the jaw 2 is moved downwardly along a second portion of the adjustment path along the groove 14. In this case, the lower rod 10 is moved together with the block 15 again slightly downwards, so that the piston 16 is again moved slightly obliquely forward down and the tension of the spring 17 is slightly reduced. Due to this sequence of movements of the jaws 2 is biased in the first region of the adjustment to its holding position. Since the jaw 2 is biased in its holding position, it is also in its holding position in the first region of the adjustment. In the second region of the adjustment, however, the jaw 2 is biased to its release position, where it is also in its release position in the second region of the adjustment.

In order to adjust the heel unit 1 from the release configuration back into the holding configuration, the jaw 2 is first tilted forward with its upper portion. As soon as the upper rod 11 is above the notch 13, the jaw 2 is automatically lowered vertically downwards to its holding position due to the tension of the spring 17. In order to tilt the jaw 2 as required first to tilt forward, for example, the rearward facing free end of the opening lever 5 can be moved back up. But there is also the possibility that this is done with a downward force on the front end of the jaw 2. For example, with the heel of the ski boot arranged at the front lower end of the jaw 2 entry element 19 are pressed down. Also, thereby, the jaws 2 is tilted forward until it can be automatically lowered by the tension of the spring 17 vertically down to its holding position. Since in this case, the heel area of the ski boot is already encompassed with the touchdown on the entry element 19 from the top of the jaw 2 and a little bit forward to the side, thereby also the Heel area of the ski boot lowered together with the jaw 2 to the ski out until the jaw 2 is in its holding position and the ski boot is locked in the lowered position.

Due to the course of the adjustment, the automatic heel unit 1 enables a safety release in the forward direction: As already mentioned, the jaw 2 in its holding position can lock the heel area of a ski boot held in the ski binding in the lowered position. This allows the ski boot to be attached to the ski for a descent. Now, when the skier falls forward, an upward force acts on the heel area of the ski boot. If this force is greater than the force with which the jaw 2 is biased to its holding position, the heel portion of the ski boot will push the jaws 2 upwardly along the first portion of the adjustment path. The energy absorbed by the automatic heel unit 1 corresponds to the distance traveled upwards by the jaw 2 multiplied by the downward force acting on the jaws 2. If the energy of the fall is smaller than this force multiplied by the length of the first range of the displacement, the entire energy of the fall is absorbed by the heel unit 1 and there is no safety release. On the other hand, if the energy of the stem is greater than this force multiplied by the length of the first range of travel, the jaw 2 is moved to the upper end of the first range of travel and tilted rearwardly along the second range of travel. As a result, the heel area of the ski boot is released by the automatic heel unit 1, so that it comes to a safety release.

The energy that can be absorbed by the heel counter 1 in a fall until it comes to a safety release can be adjusted by the bias of the spring 17 by means of the threaded sleeve 18. However, the force with which the jaw 2 is pressed down, is only half as strong as the force generated by the spring 17, because the spring 17 is inclined at an angle of 60 ° to the vertical and the effective surface of the piston 16 perpendicular to Alignment of the spring 17 is aligned. Nevertheless, the inclination of the spring 17 and the piston 16 has the advantage that the force with which the jaw 2 is pressed down, can be increased because of the inclination the spring 17 and the piston 16, a larger and more than twice as strong spring 17 can be used as if the spring 17 would be vertically aligned and would press from above vertically against the block 15 and the lower rod 10. As a result, the safety release enabled by the automatic heel unit 1 can be set more strongly so that the automatic heel unit 1 can absorb a greater amount of energy until a safety release occurs.

Regardless of the fact that due to the inclination of the spring 17 and the piston 16, the safety release enabled by the automatic heel 1 can be adjusted more strongly, the inclination of the spring 17 and the piston 16 also has the advantages that the threaded sleeve 18 for setting the safety release optimally accessible is and that the area below the spring 17 of the jaw carrier 3 is available for other functions of the heel unit 1. As described below, this area below the spring 17 in the automatic heel unit 1 offers space for the mechanics of two further functions of the automatic heel unit 1.

When heel machine 1, which in the FIGS. 1 to 3 is shown, the jaw carrier 3 is slidably mounted in the longitudinal direction of the ski on the base member 4 and can be compared to the base member 4 as in the FIG. 4 be moved shown in a rear position. In this rear position, the heel unit 1 is in a climbing configuration, in which the heel area of the ski boot is released from the jaw 2, so that the ski boot with his heel area can be lifted off the ski and lowered back to the ski without the ski boot from the ski boot Baking 2 is locked. The mechanism that allows the jaw carrier 3 to move relative to the base member 4 between the ascent configuration and the holding configuration is located below the spring 17. It may be, for example, the mechanism which in the EP 2 705 833 A1 (Fritschi AG - Swiss Bindings). Since the automatic heel unit 1 has such an ascent configuration, it is advantageously used in touring ski bindings of the aforementioned second or third type or in telemark or cross-country ski bindings, in which for descents a holding configuration is desired, in which the heel area of the ski boot is locked in a lowered position.

Apart from the displaceability of the jaw carrier 3 relative to the base member 4 for an adjustment of the heel unit 1 in the ascent position of the jaw carrier 3 is biased with a spring force to the front and can be moved against this spring force to the rear. This makes it possible to compensate for changes in distance between a front automaton and the automatic heel unit 1, which can occur when a ski deflects. As a result, when skiing with the automatic heel unit 1 in the holding position and a ski binding held in the ski binding jamming of the ski boot between the front automatic and automatic heel 1 is prevented when the rear and the front end of the ski are bent upwards. Accordingly, a reliable safety release is thereby made possible with the automatic heel unit 1 in all driving situations. The mechanism with the spring for generating the bias of the jaw carrier 3 forward is disposed below the inclined spring 17.

The invention is not limited to the automatic heel unit 1 described above. For example, it is not necessary for the heel machine to include a base member as described above. Also, it is not necessary that the jaw carrier is mounted directly on any existing base element. For use in a touring ski binding of the first type mentioned above, the jaw carrier, for example, as in the WO 96/23559 A1 (Fritschi AG Apparatebau) described be arranged on the sole support, which is pivotable in its front region about a horizontally oriented in the transverse direction axis. In this case, since the heel piece can be pivoted away from the ski together with the sole support in the ascent configuration of the toe binding, it is not necessary for the heel piece to have an ascent configuration itself.

In addition to the use in touring ski bindings, telemark or cross-country ski bindings, an heel automat according to the invention can also be used for other ski bindings such as, for example, downhill bindings. In such a case, the heel box is not required to have an ascent configuration.

Regardless of which type of ski binding the heel machine is used, it is not necessary that the jaw carrier is biased forward relative to the base member. For example, the heel machine can also be designed to be easily displaceable relative to the base element in order to be able to adapt a distance between the front automatic machine and the heel counter to a size of a ski boot to be held. For example, there is also the possibility that the jaw carrier is fixedly mounted on the base member, wherein the jaw carrier and the base member may also be integrally formed as an element.

However, the invention may otherwise be carried out deviating from the heel machine 1 described above. For example, another elastic element than the spring 17 can be used. In addition, there is also the possibility that the spring is oriented at a different angle than at an angle of 60 ° to the orientation of the first portion of the adjustment. In the same way, the first region of the adjustment path can be oriented differently than vertically. In addition, the first region of the adjustment can also be curved. There is also the possibility that the adjustment path has no second area. In this case, the first range of the adjustment can also extend over the entire adjustment path.

Regardless, the effective area of the piston may be oriented or curved differently than described above. In addition, the block 15 and the effective range of the baking can be shaped differently. Next there is also the possibility that between the effective surface of the piston and the effective range of the jaw, a pawl is arranged, which is pivotally mounted on the jaw carrier and transmits the force generated by the elastic element from the piston to the jaws. Alternatively, there is also the possibility that the automatic heel unit does not comprise a piston, but that the elastic element acts directly on the effective range of the jaw or on the possibly present pawl. Also, the storage of the baking on the back support can be performed differently. For example, unlike a lower and upper rod, the jaw may be supported on the jaw.

In summary, it should be noted that an heel machine is provided which is compactly constructed

Claims (12)

1. Automatic heel unit (1) for a ski binding, comprising a jaw (2) for retaining a ski boot in a heel region of the ski boot, a jaw carrier (3), on which the jaw (2) is mounted in a movable manner, and an elastic element (17), wherein

   a) the automatic heel unit (1) has a retaining configuration, in which the jaw (2) is located in a retaining setting and can interact with the heel region of the ski boot, which is retained in the ski binding, such that the ski boot is arrested in a lowered setting, and wherein

   b) the automatic heel unit (1) has a release configuration, in which the jaw (2) is located in a release setting and the heel region of the ski boot has been freed from the jaw (2),

   wherein the jaw (2) can be moved relative to the jaw carrier (3) from its retaining setting into its release setting, and back, on an adjustment path, wherein the adjustment path has a first region, in which the jaw (2) is biased in the direction of its retaining setting by the elastic element (17) exerting a force, and the automatic heel unit comprises a guide device, by means of which the jaw (2) is mounted such that it can be displaced relative to the jaw carrier (3) from its retaining setting into its release setting, and back, along the adjustment path, characterized in that, at each position of the jaw (2) in the first region of the adjustment path, the force generated by the elastic element (17) in order to bias the jaw (2) in the direction of its retaining setting is oriented at an acute angle ranging from 20° to 70° to an orientation of the adjustment path at the respective position of the jaw (2), wherein the jaw (2) is located in its retaining setting in the first region of the adjustment path and the first region of the adjustment path is a continuous region.
2. Automatic heel unit (1) according to Claim 1, characterized in that, at each position of the jaw (2) in the first region of the adjustment path, the force generated by the elastic element (17) in order to bias the jaw (2) in the direction of its retaining setting is oriented at an angle ranging from 40° to 70°, particularly preferably ranging from 50° to 70°, to the orientation of the adjustment path at the respective position of the jaw (2).
3. Automatic heel unit (1) according to Claim 1 or 2, characterized in that the jaw (2) has an active region, in which the force generated by the elastic element (17) in order to bias the jaw (2) in the direction of its retaining setting is transmitted physically to the jaw (2).
4. Automatic heel unit (1) according to Claim 3, characterized by a piston (16), by means of which, at each position of the jaw (2) in the first region of the adjustment path, the force generated by the elastic element (17) in order to bias the jaw (2) in the direction of its retaining setting is transmitted to the active region of the jaw (2) and thus to the jaw (2) itself.
5. Automatic heel unit (1) according to Claim 4, characterized in that the piston (16), at each position of the jaw (2) in the first region of the adjustment path, is pushed against the active region of the jaw (2) by the elastic element (17) in the same direction as the orientation of the force generated by the elastic element (17) in order to bias the jaw (2) in the direction of its retaining setting.
6. Automatic heel unit (1) according to one of Claims 3 to 5, characterized in that the adjustment path is the path on which the active region of the jaw (2) is moved when the jaw (2) is adjusted from its retaining setting into its release setting, and back.
7. Automatic heel unit (1) according to one of Claims 1 to 6, characterized in that the first region of the adjustment path is oriented essentially vertically.
8. Automatic heel unit (1) according to one of Claims 1 to 7, characterized in that the automatic heel unit (1) comprises an opening lever (5), which can be actuated to adjust the automatic heel unit (1) from the retaining configuration into the release configuration, and back.
9. Automatic heel unit (1) according to one of Claims 1 to 8, characterized in that the automatic heel unit (1) comprises a step-in element (19), which can be actuated by virtue of the heel region of the ski boot being lowered downwards in the direction of the ski, in order for the automatic heel unit (1) to be adjusted from the release configuration into the retaining configuration.
10. Automatic heel unit (1) according to one of Claims 1 to 9, characterized by a base element (4) for mounting the automatic heel unit (1) on the upper side of a ski.
11. Ski binding having an automatic heel unit (1) according to one of Claims 1 to 10.
12. Ski having a ski binding according to Claim 11.

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