Heel unit for a touring binding

Abstract

Heel unit (10) for a touring binding of a ski touring boot, comprising a binding body (14) on which two coupling projections (16) for coupling to a heel section (110) of a touring boot (100) are movably held, characterized in that the movable holder of the coupling projections (16) is designed to allow the coupling projections (16) to move away from a ski touring platform (E) against a spring preload.

Description

[0001] The present invention relates to a heel unit for a touring binding of a ski touring board, comprising a binding body on which two coupling projections for coupling to a heel section of a touring boot are movably held.

[0002] Heel units of this type have become particularly widespread in ski touring to fix the heel of a touring boot to a gliding board (touring ski, splitboard or the like) by snapping the coupling protrusions formed at the front ends of two coupling pins into corresponding recesses on the heel of the ski boot.

[0003] Examples of heel units of the aforementioned type are disclosed in EP 0 199 098 A2 and AT 402 020 B. The known bindings each use two coupling pins which are held on a housing of the heel unit such that they run parallel to each other and project towards the touring boot. In addition, the pins are movable relative to each other in a plane parallel to the glide board plane (in the horizontal plane) by overcoming a restoring force in order to provide a release mechanism for a frontal fall release. The release of the known heel unit on a touring boot is described below with reference to Fig. 1 explained in more detail.

[0004] Fig. 1 shows a touring shoe 100 in a rear view (along the sliding board's longitudinal axis running in the X direction). In the section view of the Fig. 1 is a heel section 110 the touring shoe 100Two coupling pins are also shown. 120 indicated which protrude from the (not shown) heel unit in the X direction and fit into recesses 122 the touring shoe 100 intervene. The inner boundaries of the recesses 122 Each includes opening sections 124 , where the recesses 122 to a sole surface 126 of the shoe 100 are open, release protrusions 128 , which protrude from the center of the shoe in a Y-direction (perpendicular to a vertical Z-direction and perpendicular to the X-direction), resting sections 130 in the form of notches into which the coupling pins 120 be able to lock into place, as well as upper contact surfaces 132 , which essentially run in the Y direction.

[0005] The coupling pins 120 are in the Fig. The heel unit is pre-tensioned in position 1 and can be moved away from each other in a horizontal plane (Y-direction) by means of an elastic device (not shown) in the heel unit. In the Fig. The coupling pins are located in the position shown in point 1. 120 with the notches of the rest sections 130 in the intervention and the touring shoe 100 is secured to the heel unit (departure position).

[0006] In Fig. 1. It can also be seen that the inner boundary of the recesses 122 with respect to the Z-axis between the release protrusions 128 and the opening sections 124 additional entry contours 134 exhibits the distance between the two entry contours. 134 the two recesses 122 increases with increasing distance from the sole 126 the touring shoe 100This allows the touring boot to be worn when entering the touring binding. 100 so from above to the coupling pins 120 to approximate that the coupling pins 120 over the sole 126 into the opening sections 124 enter and with further lowering of the heel section 110 through the entry contours 134 They are spread apart against the action of the elastic mechanism of the heel unit. After further downward movement of the heel section 110 Overcoming the force of the elastic device, the coupling pins pass through. 120 the trigger points 128 , until they reach the notches of the rest sections 130 click into place. The touring boot is then coupled to the heel unit in the normal position (downhill position).

[0007] In the event of a my-trigger, in which the touring boot 100a torque acts about an axis running in the Y direction, so that the heel section 110 in the direction of arrow A in Fig. If 1 is moved upwards with a force exceeding a predetermined trigger force (e.g., during a fall), the coupling pins are 120 through the trigger points 128 from their in Fig. In position 1, they are displaced laterally outwards, so that they move away from each other in a horizontal plane. As soon as the heel section... 110 moved upwards, so that the release protrusions 128 above the center of the coupling pins as measured in the Z direction 120 are arranged, the touring shoe 100 without further force being applied, they will continue to move upwards in the direction of arrow A, whereby the coupling pins 120 from the trigger points 128 slide off until they are out of the opening sections 124 on the sole 126the touring shoe 100 Step out. The touring boot is then released and (at least in the heel area) decoupled from the ski.

[0008] When the touring binding is under stress, e.g. during the descent, the decision is made whether the heel unit releases or not, i.e., whether the coupling pins engage. 120 from the recesses 122 to exit or not, within the short distance from the in Fig. Position of the coupling pins shown in Figure 1 120 within the rest areas 130 until passing the release protrusions 128 Especially during sporty skiing (e.g., in competitive skiing), relatively high forces can act on the ski board for a short time when crossing obstacles, uneven terrain, or briefly colliding with rocks or similar objects on the slope. Between touring boots 100and the heel unit then experiences a sudden, short load, which can be large enough to trigger the coupling pins. 120 to overcome for a short time. The coupling pins therefore tend to overcome the release projections even with a brief impact or shock. 128 to overcome this, so that the touring boot is released from the heel unit, even though this temporary interference is not yet associated with a fall by the rider. The binding thus leads to an undesirable false release in some cases, especially during sporty skiing.

[0009] The object of the invention is to provide a heel unit which, on the one hand, ensures a reliable release of the touring shoe in the event of a fall and, on the other hand, largely prevents false releases during a descent in more demanding terrain, especially during sporty or competition-oriented descents.

[0010] According to the invention, this problem is solved by a heel unit for a touring binding of a ski board, comprising a binding body on which two coupling projections for coupling to a heel section of a touring boot are movably held, wherein the movable holder of the coupling projections is arranged so that the coupling projections move away from the ski board plane.

[0011] According to an important feature of the invention, the heel unit has coupling projections which are movable in a direction that has at least one component directed away from the sliding board. Thus, while the coupling projections provided on coupling pins of known heel units were, by the corresponding mounting of the coupling pins on the heel unit, forced to move exclusively in the horizontal plane (parallel to the sliding board plane), the coupling projections of the heel unit according to the invention are designed for movement oblique to or orthogonal to the sliding board plane.

[0012] It should be noted at this point that, within the scope of this disclosure, all terms such as "horizontal", "vertical", "lateral", "forward", "backward", "downward", "upward", etc., refer to a heel unit which is mounted on a sliding board arranged in a horizontal plane. The sliding board plane, as well as a longitudinal axis of the sliding board, are defined by a mounting section of the heel unit, for example, mounting holes on a base part of the heel unit.

[0013] The movement component of the coupling projections according to the invention, in a direction leading away from the gliding plane, achieves the effect that, in the event of a torque acting on the touring ski about a Y-axis, causing a heel section of the touring ski to move upwards away from the gliding plane, the coupling projections can follow the movement of the heel section over a certain distance before they have shifted relative to the heel section sufficiently to release the engagement between the coupling projections and the heel section. In other words, the present invention allows the creation or significant enlargement of a release path over which the touring boot shifts relative to the heel unit from its normal engagement position until the actual release occurs.

[0014] This means that the heel unit does not trigger immediately when a force exceeding the predetermined trigger force of the heel unit acts on the heel section of the touring ski, but only when this force persists long enough for the heel section to exceed the trigger path. In the case of a brief, impact load where triggering is not desired, e.g., an impact while crossing an obstacle or during a particularly demanding maneuver, the trigger force is indeed exceeded for a short time, causing the heel section of the touring boot to move a short distance away from the glide plate along the trigger path. However, the load or force acting on the touring ski falls below the predetermined threshold again after a short time.The release force of the heel unit is absorbed, preventing further movement of the touring shoe relative to the heel unit along the release path. Consequently, the touring shoe does not reach the actual release position but returns to its normal position under the influence of the heel unit's restoring force. In the event of such temporary stress, which generally does not result from a fall by the rider, an unwanted false release can therefore be prevented.

[0015] The release mechanism according to the invention, involving movement of the coupling sections in a direction away from the sliding board plane, can also be described with reference to a quantity referred to as the release energy. If one considers, at each point of the release path, the force acting between the touring boot and the heel unit in the direction of returning the touring boot to the normal position, the release energy is obtained as the integral of this restoring force over the release path, i.e., from the normal position to the release point at which no restoring force acts on the heel section and the touring boot is released. By creating or extending the release path, it is now possible, according to the invention, to define a predetermined release energy by appropriately specifying / adjusting the restoring force or release force (e.g., spring force) and the release path. This predetermined release energy is to be transferred from the touring boot to the heel unit so that the heel unit releases.

[0016] In principle, the movement of the coupling projections according to the invention can be a substantially vertical movement away from the sliding plane, so that during the release process the coupling projections are initially pulled vertically upwards with the heel section of the shoe and are released from the heel section after exceeding a certain distance. For example, the coupling projections on the heel unit can be guided in such a way that they initially move vertically upwards against the force of a reset device and are then driven away from each other in order to disengage from corresponding detent sections on the heel section of the touring shoe.

[0017] In a preferred embodiment of the invention, the movable mounting of the coupling projections is configured such that the coupling projections move along a direction of movement that is oblique to the plane of the sliding board and oblique to the normal of the sliding board. This allows the heel unit to interact with conventional touring shoes that have a release contour in their heel section, which allows the coupling projections to be released by a movement of the coupling projections away from each other.The movement device, which runs obliquely to the sliding board plane and to the sliding board normal, according to this embodiment, then enables, during the movement of the touring shoe along the release path, on the one hand the tracking movement of the coupling projections away from the sliding board plane to increase the release path, and on the other hand simultaneously the movement of the coupling projections away from each other to ensure the eventual complete release of the touring shoe.

[0018] In a heel unit of a further embodiment of the invention, it can also be provided that the movable holder of the coupling projections is configured for movement of the coupling projections from a first position to a second position against the action of a release force, wherein the distance of the coupling pins from the sliding board plane is greater in the second position than in the first position, and wherein the distance between the coupling pins is greater in the second position than in the first position. The first position of the coupling projections corresponds to an unloaded position in which the coupling projections are not engaged with the shoe or do not experience any significant forces from the shoe in the direction of the My release (touring shoe in normal position or unloaded downhill position).The second position corresponds to a position of the coupling projections in which they have already moved part of the way towards the release position, or have just reached the release position to release the touring boot. The first position of the coupling projections defines a normal position of the touring boot, in which the boot is held at the heel unit when unloaded or under light load. The second position defines a pre-release position or a release position of the boot, in which the touring boot has moved at least part of the release path relative to the heel unit, and the described embodiment ensures that movement between the first and second positions occurs while overcoming a release force.By increasing the distance between the coupling projections in the second position, a release of the touring shoe is prepared, while by increasing the distance between the coupling projections and the sliding board plane in the second position, the inventive guidance of the coupling projections with the heel section of the touring shoe is achieved to increase the release path.

[0019] In a technically simple implementation of the movable coupling projections, these can be provided at the front ends of coupling pins, the coupling pins each having retaining sections on which they are pivotably mounted to the binding body. The pivotable mounting can be designed such that the movement of the coupling projections away from the plane of the slide board according to the invention is permitted together with other directions of movement (e.g., ball joint). Alternatively, a specific direction of movement of the coupling projections can be predetermined by appropriately orienting a bearing axis of the coupling pins. Alternatively or additionally, consideration is given to forcing the coupling pins onto a desired path of movement or in a desired direction of movement by means of at least one lateral guide.A guide arranged at a distance from the pivot axis of the coupling pins can stably transfer the relatively high forces acting on the coupling pins from the shoe into the heel unit.

[0020] If the coupling projections are provided on pivotable coupling pins, a further embodiment provides, in particular, for drive sections to be provided on the coupling pins, which are engaged or can be engaged with a transmission element, wherein the transmission element is movably held on the binding body so that it can only be moved in at least one direction by overcoming a predetermined force, in particular the force of a release spring. This embodiment provides a technically simple way of pre-tensioning the coupling pins by a predetermined force, in particular pre-tensioning them into a first position in which they hold the ski boot in a normal position for a descent, so that the ski boot is forced back from a pre-release position to a normal position by the force acting on the transmission element, in particular the force of a release spring.As a result, the touring shoe experiences the restoring force (trigger force) of the heel unit during its movement from its normal position along the trigger path to the trigger position.

[0021] By changing the predetermined release force, in particular the force of the release spring means, the release behavior (release force, release energy) can be directly influenced.

[0022] In principle, each of the two coupling pins could be engaged with a separate transmission element, which is subjected to a predetermined force. However, to simplify the structure, it is preferred that the drive sections of the coupling pins are engaged, or can be engaged, with a common transmission element, so that the force application to both coupling pins can be achieved with only one transmission element and, in particular, using a common release spring.

[0023] In a further preferred embodiment, the aforementioned drive sections and the aforementioned transmission part (or parts) slide against each other on the respective guide sections during the movement of the coupling projections. This feature makes it possible to convert the circular movement of the drive sections of the pivotally mounted coupling pins, by sliding against the transmission part, into a movement of the transmission part in a different direction or with a different type of movement.

[0024] The guide sections along which the drive sections and the transmission part slide against each other can comprise first and second guide sections. The first guide sections can force the drive sections onto a path of movement that runs obliquely away from the sliding board plane and obliquely to the sliding board normal, thus achieving the effects described above: a tracking movement of the coupling projections with the upward lifting heel section of the touring boot, and the movement of the coupling projections away from each other that prepares the release of the touring boot. Furthermore, the second guide sections can be designed to convert the movement of the drive sections into the movement of the transmission part against the action of the predetermined force.Thus, important mechanical parts of both the release mechanism and the tracking mechanism according to the invention can be provided solely through suitable design of the guide sections of the drive sections and the transmission part.

[0025] The second guide sections of the type described above can, in a technically simpler version, have at least one guide surface running obliquely to the axis of the coupling pins. This guide surface can be formed on the respective drive section and / or on the transmission part and enables the essentially circular movement of the drive section relative to the slide board to be converted obliquely upwards and outwards into a movement of the transmission part in the desired direction, e.g., into a pivoting or sliding movement along the longitudinal axis (X-axis) of the slide board. The latter version offers the particular advantage that a release spring can be arranged in a space-saving manner parallel to the longitudinal axis of the slide board on the heel unit.

[0026] In a further embodiment of the invention, the transmission element can be pivotably mounted on the binding body. A pivotable mounting offers the advantage over a sliding guide that tilting or jamming of the transmission element can be largely prevented, while at the same time, interaction with a linearly acting spring element (e.g., a compression spring) is still possible at a point on the transmission element at a distance from the pivot point.

[0027] In a further embodiment of the invention, the heel unit can also include a base part for attaching the heel unit to a touring ski board, wherein the binding body is displaceable relative to the base part in the longitudinal direction (X-direction) of the ski board and is pre-tensioned towards the touring boot by the action of a spring. The displaceability of the binding body allows for a further improvement in the tolerance of the heel unit to temporary loads, particularly during sporty skiing, which should not yet lead to the heel unit releasing. In particular, the longitudinally displaceable mounting of the heel unit can compensate for relative movement between the heel unit and the toe unit of the touring binding, which occurs when the ski board deflects while skiing through a dip in the terrain.The binding body can thus be kept in secure contact with the heel section of the touring ski at all times, even with constantly changing gliding board deflection during the descent, thanks to the action of the spring element.

[0028] The longitudinal adjustability of the binding body according to the embodiment described above can also be used as an entry mechanism to allow the user to enter the downhill position of the touring binding when switching from the walking position to the downhill position. This is achieved by moving the binding body, together with the entry coupling projections, backwards until the touring boot, which is pivotally mounted on the front unit of the touring binding, can be pivoted towards the ski platform and the recesses on the heel section of the touring boot are aligned with the coupling projections. The binding body can then move forwards towards the touring boot so that the coupling projections engage in the recess of the touring boot and the boot is fixed to the ski platform in the downhill position.

[0029] The aforementioned rearward shift of the binding body along the longitudinal side of the skid board can be facilitated by an entry aid that allows the skier to transition from the touring binding's walk position to the downhill position by lowering the heel section of the touring boot. To implement such an entry aid, it is proposed that the binding body incorporate a boot control section with a control contour that runs diagonally to the skid board plane and rises towards the rear of the skid board. This ensures that, as the skier approaches the skid board to engage the heel unit, the binding body is displaced backward.

[0030] In a preferred embodiment of the aforementioned heel unit with a longitudinally displaceable binding body, it is particularly provided that the shoe control section is supported against the transmission element, wherein the predetermined force required to move the transmission element relative to the binding body in the reverse direction is greater than the force of the spring element with which the binding body is pre-tensioned in the longitudinal direction of the sliding board. Thus, in addition to the tasks mentioned above (interaction with the drive sections of the coupling pins), the transmission element can also perform the task of transmitting force from the shoe control section to the binding body. The design of the heel unit can be further simplified in this way.

[0031] To facilitate movement on the touring ski binding during an ascent, it is further proposed that the heel unit have at least one climbing aid which, in the walking position of the heel unit, can be adjusted to an active position in which it supports the heel section of a touring boot at a predetermined height above a ski binding surface. Such a climbing aid will support the touring boot, in particular, at a height above the binding projections and can, for example, be pivotably mounted on the heel unit. Preferably, the height of the climbing aid is adjustable to adapt to a slope of the terrain, or the heel unit comprises a plurality of climbing aids which, in the walking position of the touring binding, can be selectively pivoted from an inactive position outside the pivot range of the touring boot to an active position to support the touring boot.In the active position, several climbing aids can be stacked on top of each other to achieve a desired support height.

[0032] The aforementioned boot control section, designed to provide an entry aid for the touring boot, can be advantageously combined with the at least one climbing aid if the at least one climbing aid (for entering the heel unit) is adjustable to a position in which the boot control section is positioned above the coupling projections and the control contour of the boot control section slopes upwards towards the sliding board plane and the rear end of the sliding board. In this way, when adjusting the at least one climbing aid from the active to the inactive position, the boot control section can simultaneously be moved into the position required for the entry aid to function, thus facilitating operation of the heel unit when switching from the walking to the skiing position and simplifying the heel unit's structure.

[0033] In a further embodiment of the present invention, the heel unit can comprise a base part for attaching the heel unit to a touring ski board, wherein the binding body is pivotable relative to the base part about an axis substantially orthogonal to the ski board plane. The pivotability of the binding body about the substantially orthogonal axis can be used, on the one hand, to adjust the heel unit between the downhill position and a walking position for flat terrain, in which the coupling projections are pivoted laterally away from the heel section of the touring boot, so that the heel section of the touring boot can lift freely off the ski board and the touring boot is movable about the pivot bearing of the toe unit.On the other hand, the pivoting movement of the binding body around the essentially orthogonal axis can be pre-tensioned into the normal downhill position by an Mz release spring, so that an Mz release mechanism is provided to release the touring boot in the event of a high torque around a vertical axis of rotation (in a fall).

[0034] The invention is explained in more detail below with reference to a preferred embodiment and the accompanying figures. These show:

[0035] Fig. 1 a rear view of the heel section of a touring shoe,

[0036] Fig. 2 a perspective view of a heel unit according to the embodiment of the invention,

[0037] Fig. 3 a front view of the heel unit of the exemplary embodiment,

[0038] Fig. 4 a sectional view of the heel unit of the embodiment according to a section line IV-IV in Fig. 3,

[0039] Fig. 5 a front view of the heel unit of the embodiment with the climbing aids removed,

[0040] Fig. 6 a sectional view of the heel unit of the exemplary embodiment according to a section line VI-VI in Fig. 5, and

[0041] Fig. 7 a side view of the heel unit of the embodiment in a walking position with a first climbing aid in active position.

[0042] A heel piece 10 The embodiment of the present invention comprises a sliding board 11 base part to be attached 12 , one attached to the base part 12 held bonding body 14 as well as on the binding body 14 maintained coupling advantages 16 for the procedure with a heel section110 ( Fig. 1) a touring shoe 100 .

[0043] Fasteners, in particular fastening holes 13 , for attaching the base part 12 on the sliding board 11 define a sliding board plane E of a sliding board connected to the heel unit 11 (horizontal plane in this revelation) and a sliding board longitudinal axis M along a central axis of the sliding board. The sliding board longitudinal axis M runs in an X-direction of a coordinate system of the heel unit. A sliding board normal, which is perpendicular to the sliding board plane E, runs in a Z-direction of the coordinate system, and a Y-direction of the coordinate system runs orthogonal to the X-direction as well as orthogonal to the Z-direction.

[0044] The binding body 14 can be attached to a storage arrangement 18 pivotable about an axis extending in the Z direction relative to the base part 12This can be achieved by adjusting the storage arrangement. 18 a bearing journal 20 include which fits into an assigned recess 22 of the binding body 14 is used. The storage of the binding body. 14 on the bearing journal 20 is preferably pre-tensioned in a departure position in which the coupling projections 16 Point forward in the X direction.

[0045] For pre-tensioning the binding body 14In the departure position, a known Mz release mechanism, described for example in EP 0 199 098 A2, may be provided. The details described in EP 0 199 098 A2 concerning the rotatable mounting of a binding body with coupling pins on a vertically extending pin, as well as the spring arrangement acting between these elements, are to be fully incorporated into the present disclosure by reference. Thus, on the outer surface of the bearing pin, 20 a cam surface 24 It should be provided at which, in the event of a relative rotation between the bonding body, 14 and bearing journals 20 a cam follower 26 slips off, which is attached to the binding body 14 guided in a movable manner and by the force of an Mz release spring 28 into contact with the cam surface 24 is pre-tensioned. The Mz trigger spring 28This can be achieved, on the one hand, by a preload adjustment element. 30 support which is in an adjustable, but fixed position on the binding body during normal operation 14 is appropriate, and can, on the other hand, be attached to the cam follower 26 support. The preload adjustment element 30 It can be a screw, so that by turning the screw the distance between the two support points of the Mz release spring can be changed. 28 and thus the preload of the Mz release spring 28 It is adjustable.

[0046] The contour of the cam surface 24 is chosen such that the bonding body 14 is pre-tensioned in the departure position, in which the coupling projections 16 essentially pointing forward in the X direction. Furthermore, the cam surface 24 shaped so that during a rotational movement of the binding body 14 the cam follower 26in the direction of a compression of the Mz release spring 28 is forced, so that the pivoting movement of the binding body 14 A force is exerted in the opposite direction from the starting position. If this force exceeds a predetermined Mz release force, for example, because a heel section of the touring boot is damaged in the event of a fall and twisting of the ski board, the system will activate the release mechanism. 100 When pressed in a lateral direction (Y-direction), the force of the Mz release spring 28 overcome and the binding body 14 rotates together with the coupling projections 16 to the side, so that the binding is released from the touring boot. This movement is the Mz release movement of the binding body. 14 or the coupling advantages 16 .

[0047] The storage arrangement 18 , with which the bonding body 14 on the base part 12The bearing also includes a spring bearing, which allows for a spring movement of the binding body. 14 and thus the coupling advantages 16 permitted. In the illustrated version, the bearing pin is used for this purpose. 20 linearly movable in the X direction on the base part 12 guided and by the action of a spring element 32 forward direction (towards the touring boot) 100 (hin) pre-tensioned.

[0048] The linear guide can be attached to the base part 12 trained first rail section 34 as well as one attached to a sled 36 trained, with the first rail section 34 second rail section entering the displacement engagement 38 include the bearing journal. 20 can then use the sled 36 connected and along the X-direction on the base part 12 It should be movable. Due to the spring element. 32 is the sled 36It is pre-tensioned forward in the X direction. Its forward movement in the X direction is limited by an initial stop. 40 limited, which is operationally (i.e. during normal operation, e.g. during departure) stationary in relation to the base part 12 is held. At the first attack 40 the sled 36 with a second attack 42 on, when applied to the bonding body 14 no force acts in the X direction (e.g., with a decoupled touring shoe).

[0049] In the exemplary embodiment, the spring element 32 in a recess open towards the sliding board 44 of the sled 36 housed and rests with its front end against a front boundary wall 46 the recess 44 off, while the rear end of the spring element 32 at a spring bearing 48 which is operationally fixed to the base unit 12is held. Preferably, the spring bearing forms 48 also the first attack 40 out, so that the spring bearing 48 Dual function for supporting the spring element 32 as well as to limit the movement of the sled 36 has.

[0050] In the exemplary embodiment of the invention, the spring bearing can 48 in its position relative to the base part 12 be adjustable to the unloaded position of the carriage 36 to be adjustable along the X-direction. The spring bearing can be used for this purpose. 48 be provided as a threaded nut, which is connected to a threaded screw extending in the X direction. 50 is penetrated in the thread engagement. The screw 50 can be attached to its spring bearing 48 far end of a storage section 52 of the base part 12 be stored in such a way that the screw 50It can rotate around its longitudinal axis, but cannot move in the X direction. To adjust the screw 50 can this have a screw head 54 with a tool engagement section. The spring element 32 is preferably designed as a coil spring, such that the spring bearing 48 through screw 50 can penetrate the interior of the coil spring without interference.

[0051] The following describes in more detail a My-release mechanism of the heel unit of the exemplary embodiment of the invention. The My-release mechanism comprises the coupling projections. 16 , which are attached to the bonding body 14 are held movable. Preferably, the coupling projections are 16 at the front ends of two coupling pins 56 trained, which are attached to the coupling projections 16 stopping sections facing away 58 pivotable on pin bearing sections 60are mounted on the binding body. The pin bearing sections 60 the coupling pins are stored 56 such that the coupling advantages 16 are at least movable in one direction of movement, which runs away from the sliding board plane.

[0052] Between the coupling advantages 16 and the stopping sections 58 are attached to the coupling pins 56 Drive sections 62 formed or attached. The drive sections 62 the two coupling pins 56 preferably have a common transmission part 64 in contact, which is attached to the bonding body 14 is held movable, so that movement of the pins is prevented 56 via the drive sections 62 into a movement of the transmission part 64 is transferred. The transmission part 64 can be equipped with a swivel axis extending in the Y direction 66pivotable on the binding body 14 It should be articulated. Preferably, the transmission part has 64 furthermore a spring bearing 68 on, in particular one from the pivot axis 66 spaced spring bearing 68 to support a My release spring 70 The contact between the drive sections 62 and the transmission part 64 can be located in one between the spring bearing 68 and the pivot axis 66 lying section of the transmission part 64 This is done to ensure the power transmission between the transmission part. 64 and My trigger spring 70 through the leverage effect of the transmission part 64 to improve.

[0053] In Fig. 3 and Fig. 5 can be seen that the drive sections 62 on first guide surfaces 72 of the transmission part 64 slide off, which are essentially parallel to the axes of the coupling pins56 on both sides of the drive sections 62 run and the drive sections 62 They are forced onto movement paths along the directions of movement r1 and r2. The directions of movement r1 and r2 of the drive sections 62 They run diagonally away from the sliding board plane E and diagonally towards the Z-direction (sliding board normal). As in Fig. As can be seen in Figure 5, the directions of movement r1 and r2 are V-shaped and symmetrical about a vertical longitudinal median plane V, which runs orthogonally to the sliding board plane E in the X-direction and bisects the sliding board longitudinally. The directions of movement r1 and r2 can each form an angle between approximately 10 degrees and approximately 45 degrees with the longitudinal median plane V, most preferably an angle between approximately 15 degrees and approximately 30 degrees.

[0054] At the transmission part 64 Furthermore, a normal position stop can be used. 74 or / and a trigger position stop76 for the drive sections 62 be trained to control the swivel range of the coupling pins 56 to limit in at least one of the two positions, normal position and release position. As can be seen in the exemplary embodiment, the first guide surfaces can be designed in a simple manner. 72 , the normal position stop 74 as well as the trigger position stop 76 They are to be provided together as inner boundary walls of a common recess. The coupling between the drive sections 62 and the transmission part 64 Each of these can then be described as a slot coupling, in which the transmission part 64 has two essentially V-shaped elongated holes in which the drive sections are located. 62 are guided along the directions of movement r1 and r2 and are limited with regard to their end positions of movement.

[0055] The transmission part 64 preferably indicates for each of the drive sections 62 the coupling pins 56 each second guide surfaces 78 on which backs 80 the drive sections 62 concerns. The second guide surfaces 78 are designed in such a way that when the coupling pins pivot, 56 along the directions of movement r1 and r2, the drive sections 62 on the second guide surfaces 78 slip, the transmission part 64 around the pivot point 66 is pivoted. This can be achieved by tilting it at an angle to the axis of the coupling pins. 56 running guide surface 78 or a trough-shaped guide surface 78 to be realized.

[0056] The second guide surfaces 78 can be easily and constructively integrated with the first guide surfaces 72can be connected by connecting the second guide surfaces 78 to be formed as the bottom of a recess, the side walls of which are defined by the first guide surfaces 72 are formed (as well as, if applicable, by the attacks) 74 , 76 ). On the ground 78 The recess then has an elongated hole whose dimensions are smaller than the dimensions of the recess and through which a narrower section of the coupling pins passes. 56 , but not the drive sections 62 , can be passed through.

[0057] As mentioned previously, a front end of a My trigger spring can 70 at a spring bearing 68 of the transmission part 64 be supported. In the exemplary embodiment, a [missing element] is located at the front end of the My release spring. 70 attached bearing pin 82 via a ball coupling 84 at the spring bearing 68 of the transmission part 64The ball coupling is mounted. 84 ensures the implementation of the pivoting movement of the spring bearing. 68 of the transmission part 64 into an essentially linear compression movement of the My trigger spring 70 , so that the My trigger spring 70 only actuated along its straight compression or decompression direction.

[0058] The My release spring 70 It is essentially oriented in the X direction. The My release spring can be found at the rear end. 70 be directly coupled to a bonding body-fixed section, or, as illustrated in the embodiment, to provide the possibility of adjusting the preload force of the My release spring. 70 and thus an adjustment of the My trigger force, with a My trigger force adjustment mechanism 86 It should be equipped with the My trigger force adjustment mechanism. 86 can have a second bearing journal 88include, which is located at one rear end of the My trigger spring 70 is attached and its distance from a bonding body-fixed bearing section 90 by adjusting a threaded screw 92 It is adjustable. The threaded screw 92 can be at the storage section 90 rotatable, but in the axial direction of the My release spring 70 be mounted immovably and have an internal thread on the second bearing journal 88 be engaged, so that by turning the threaded screw 92 , in particular by actuation via a tool engagement section 94 at the end of the threaded screw 92 , the second bearing journal 88 in the axial direction of the My release spring 70 can be shifted. In this way, the preload of the release spring can be adjusted. 70 to influence the mu-trigger behavior of the heel unit 10 be adjusted.

[0059] The heel unit 10 It can also be used as an initial climbing aid 96 and a second climbing aid 98 include, which are pivotable on the heel unit 10 are attached to be swivelled either individually or together into an area between the sliding board and the touring boot (active position), so that the touring boot 100 It can be supported at a suitable height above the sliding board. In a manner known per se, this facilitates walking on an incline. Preferably, both climbing aids 96 , 98 mounted on a common pivot axis running in the Y direction. Significant savings in installation space and components can also be achieved if the common pivot axis 66 the climbing aids 96 , 98 including the transmission part 64 pivotable on the binding body 14 is stored.

[0060] At the first step96 is a shoe tax section 106 arranged, which has a control contour running obliquely to the sliding board plane E and rising towards the rear end of the sliding board. 108 exhibits a lower end. 108u the tax contour 108 It ends approximately at the level of the front ends of the coupling projections in the X direction. 16 or even extends beyond the front ends of the coupling projections in the forward direction. 16 before. An upper end 108o the tax contour 108 lies behind the front ends of the coupling projections in the X direction. 16 The tax contour 108 preferably forms an angle between approximately 45 and approximately 75 degrees with the sliding board plane E to ensure safe sliding of the heel section of the touring boot while allowing sufficient displacement of the binding body 14 to guarantee in the X direction.

[0061] The following describes how the heel unit works. 10 The embodiment of the invention is explained below. In the unloaded normal position shown in the figures, the first stop is located 40 of the spring bearing 48 on the second attack 42 of the sled 36 on, the coupling pins 56 are in their normal position, in which the coupling projections 16 assume their lowest and closest position, especially the drive sections 62 at the normal position stops 74 fit. The touring shoe 100 is from the heel unit 10 decoupled.

[0062] The touring boot is pivotally engaged on a front unit of the touring binding, allowing it to pivot in its front section around a pivot axis running in the Y direction, while the coupling projections 16 from the touring shoe 100When the bindings are decoupled, they are in a walking position. For walking on flat or gently sloping terrain, the first climbing aid is engaged. 96 folded down until they are on the top of the sliding board 11 or on the top of the base part 12 supports itself, as in Fig. 7 is illustrated. A first shoe edition 102 the first climbing aid 96 is then at a first climbing aid height above the sliding board level E (approximately at the level of the coupling projections) 16 or above) arranged to protect the heel area 110 the touring shoe 100 to support the ladder at this height. For steeper inclines, the second climbing aid can also be used. 98 folded downwards until they are on the first step. 96 supports and a second shoe pad 104 the second climbing aid 98 the heel area 110 the touring shoe 100supported at a second, greater climbing aid height above the sliding board level E.

[0063] At the end of the ascent and in preparation for the descent, the touring binding must be switched from the walking position to the skiing position. This is done by folding down the first and / or second climbing aids, if applicable. 96 , 98 folded upwards, so that the shoe control section 106 in the pivot area of ​​the heel section 110 the touring shoe 100 is located. Is the heel area 110 lowered and meets the tax contour 108 , so the heel section glides 110 at the tax contour 108 off and thereby displaces the shoe tax section 106 backwards. Since the shoe control section 106 with its back 109 at the transmission part 64 When the shoe control section is attached, the movement of the shoe control section will be affected. 106in the X direction to the rear onto the transmission part 64 transferred. The My release spring 70 exhibits a higher spring constant or a higher preload than the spring element 32 of the suspension bearing, to which the binding body 14 relative to the base part 12 is held movable in the X direction. This is achieved through the touring shoe. 100 caused a backward shift of the shoe steering section 106 This does not lead to a pivoting movement of the transmission part. 64 but shifts the bonding body 14 under compression of the spring element 32 in reverse.

[0064] If the heel area 110 the touring shoe 100 the lower end 108u the tax contour 108 Once reached, the binding body 14 shifted so far in the reverse direction that the front ends of the coupling projections 16in the X direction at the same level as the heel section 110 or behind the heel area 110 are arranged. The heel section 110 can therefore continue at the lower end 108u the tax contour 108 glide downwards until the rest sections 130 at the heel area 110 the touring shoe 100 sufficiently with the coupling advantages 16 They are encircled. Finally, an upper edge is passed. 136 of the heel area 110 , at which the heel section 110 compared to the touring boot 100 forms a step-like protrusion, the lower end 108u the tax contour 108 , so the heel section glides 110 finally from the shoe tax section 106 off, whereupon the binding body 14 through the force of the spring element 32 is pushed forward and the coupling projections 16 into the recesses122 the touring shoe 100 enter to buy the touring shoe 100 to intervene.

[0065] In this way, the skier can move into the downhill position of the touring binding by pivoting the touring boot, which is held on the front unit of the touring binding. 100 is pressed towards the sliding board with a simple movement until the coupling protrusions 16 into the recesses 122 the touring shoe 100 to engage. The force required for this depends on the spring force of the spring element. 32 and is therefore particularly independent of the spring force of the My release spring. 70 In this way, it can be achieved that even when using a µm release spring 70With very high tension to enable a particularly sporty skiing style, a relatively easy entry into the touring binding is possible, since the pressure force required for entry is independent of the My release spring. 70 through the spring element 32 can be defined.

[0066] During the descent, the longitudinally movable bearing of the binding body takes over. 14 under the action of the spring element 32 The task of dynamically compensating for ski deflection when traversing uneven terrain, so that the binding body remains stable during the descent. 14 can always be kept securely engaged and in close contact with the heel section of the touring shoe.

[0067] If a brief impact or shock occurs during the descent, for example when running over a rock or during a particularly demanding maneuver, it is generally undesirable for the heel unit to be subjected to such stress. 10 triggers. It lies on the heel area. 110 short-term impact force acting in the direction of arrow A at a force greater than the My release force of the My release mechanism of the heel unit 10 , which depends, among other things, on the strength of the My trigger spring 70 , so the heel section begins 110 the touring shoe 100 to lift off the sliding board in the direction of arrow A. Since the coupling projections 16 at the rest areas 130 the recesses 122 of the heel area 110 When they are engaged, the coupling projections are also affected during this movement. 16lifted upwards away from the sliding board plane E by a force acting in the direction of arrow A. The upward movement of the coupling projections 16 enforces the guidance of the drive sections 62 at the transmission part 64 a V-shaped upward movement of both coupling projections 16 , such that the distance between both coupling projections 16 from the sliding board plane, and the distance between the two coupling projections also increases. 16 enlarged.

[0068] During this triggering movement of the coupling projections 16 , and thus the coupling pins 56 Furthermore, the backs slide 80 the drive sections 62 on the second guide surfaces 78 of the transmission part 64 off and swivel the transmission part 64 (in Fig. 6 clockwise) against the force of the My release spring 70This means that during the entire triggering movement of the pins 56 a force acting on the coupling pins according to the release force 56 It affects the upward movement of the heel section. 110 This counteracts the external load. Therefore, in the situation described above, where there is a short-term impact or shock load, the external load falls on the touring ski. 100 again before the entire trigger path is covered, i.e., before the coupling protrusions 16 a sufficient distance from each other to overcome the release protrusions 128 of the heel area 110 Once achieved, the force of the My release spring leads 70 the touring shoe 100 It returns to its normal position. This prevents triggering in the case of only a temporary, short-term impact.

[0069] Does the force exerted on the touring ski hold? 100in the direction of arrow A with an intensity exceeding the trigger force, but for a longer period of time (for example, during a fall of the rider), the coupling pins 56 so far shifted that the coupling projections 16 finally, the trigger advantages 128 at the heel area 110 the touring shoe 100 overcoming the coupling advantages 16 from the opening sections 124 the touring shoe 100 to the sole 126 out of the recesses 122 can exit and the touring shoe 100 thus from the heel unit 10 It is decoupled. This ensures reliable fall detection of the heel unit. 10 ensured. QUOTES INCLUDED IN THE DESCRIPTION

[0070] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0071] EP 0199098 A2 [0003, 0045, 0045] AT 402020 B

[0003]

Claims

[1] Heel unit ( 10 ) for a touring binding of a ski board, comprising a binding body ( 14 ), at which two coupling projections ( 16 ) for coupling to a heel section ( 110 ) of a touring shoe ( 100 are kept movable, characterized by , that the movable bracket of the coupling projections ( 16 ) is set up so that the coupling advantages ( 16 ) move away from a sliding board plane (E). [2] Heel unit ( 10 ) according to claim 1, characterized in that the movable holder of the coupling projections ( 16 ) is set up so that the coupling advantages ( 16 ) move along a direction of movement (r1, r2) which runs diagonally away from the sliding board plane and diagonally to the sliding board normal. [3] Heel unit ( 10) according to claim 1 or claim 2, characterized in that the movable holder of the coupling projections ( 16 ) for a movement of the coupling projections ( 16 ) is set up from a first position to a second position against the action of a release force, where a distance between the coupling projections ( 16 ) from the sliding board plane (E) in the second position is larger than in the first position, and wherein an intermediate distance of the coupling projections ( 16 ) are greater in the second position than in the first position. [4] Heel unit ( 10 ) according to one of the preceding claims, characterized in that the coupling projections ( 16 ) at the front ends of coupling pins ( 56 ) are provided, wherein the coupling pins ( 56 ) each stopping section ( 58 ) exhibit, on which they are pivotably attached to the binding body ( 14) are stored. [5] Heel unit ( 10 ) according to claim 4, characterized in that the coupling pins ( 56 ) Drive sections ( 62 ) are provided, which are equipped with a transmission part ( 64 ) are brought into or can be brought into engagement, wherein the transmission part ( 64 ) on the bonding body ( 14 ) is held movable, so that in at least one direction it can only be moved by overcoming a predetermined force, in particular the force of a release spring means ( 70 ), is movable. [6] Heel unit ( 10 ) according to claim 5, characterized in that the drive sections ( 62 ) and the transmission part ( 64 ) during the movement of the coupling projections ( 16 ) at respective command sections ( 72 , 78 , 80 ) slide against each other. [7] Heel unit ( 10) according to claim 6, characterized in that the guide sections are first guide sections ( 72 ) and second leadership sections ( 78 ) include, the first guided sections ( 72 ) the drive sections ( 62 ) force onto a path of motion (r1 and r2) which runs diagonally away from the sliding board plane (E) and diagonally to the sliding board normal (Z), and where the second guide sections ( 78 ) the movement of the drive sections ( 62 ) into the movement of the transmission part ( 64 ) against the effect of the predetermined force. [8] Heel unit ( 10 ) according to claim 7, characterized in that the second guide sections ( 78 ) at least one inclined to the axis of the coupling pins ( 56 ) have a guiding surface. [9] Heel unit ( 10) according to one of claims 5 to 8, characterized in that the transmission part ( 64 ) pivotable on the binding body ( 14 ) is appropriate. [10] Heel unit ( 10 ) according to one of the preceding claims, further comprising a base part ( 12 ) for attaching the heel unit ( 10 ) on a touring ski board, wherein the binding body ( 14 ) relative to the base part ( 12 ) is displaceable in the longitudinal direction (X) of the sliding board and is moved by the action of a spring element ( 32 ) to the touring shoe ( 100 ) is pre-tensioned. [11] Heel unit ( 10 ) according to claim 10, characterized in that a shoe control section ( 106 ) is provided, which has a control contour running diagonally to the sliding board plane (E) and rising towards the rear end of the sliding board ( 108 ) exhibits, so that a touring shoe ( 100) when approaching the sliding board to attach the touring boot ( 100 ) on the heel unit ( 10 ) the bonding body ( 14 ) displaced in a backward direction. [12] Heel unit ( 10 ) according to claim 11 and according to one of claims 5 to 9, characterized in that the shoe control section ( 106 ) on the transmission part ( 64 ) supported or the shoe control section is provided on the transmission part, wherein the predetermined force which is required to move the transmission part ( 64 ) relative to the bonding body ( 14 ) in the reverse direction is greater than the force of the spring element with which the binding body ( 14 ) to the touring shoe ( 100 ) is pre-tensioned. [13] Heel unit ( 10 ) according to one of the preceding claims, characterized in that the heel unit ( 10 ) at least one stepping stone ( 96 ,98 ) exhibits which in a walking position of the heel unit ( 10 ) is adjustable to a position in which it includes a heel section ( 110 ) of a touring shoe ( 100 ) is supported at a predetermined height above a sliding board plane (E). [14] Heel unit ( 10 ) according to claim 11 and claim 13, characterized in that the shoe control section ( 106 ) at least one climbing aid ( 96 ) is attached and that at least one climbing aid ( 96 ) is adjustable to a position in which the shoe control section ( 106 ) above the coupling projections ( 16 ) is arranged and the control contour ( 108 ) of the shoe control section ( 106 ) runs diagonally to the sliding board plane (E) and rising towards the rear end of the sliding board. [15] Heel unit ( 10 ) according to one of the preceding claims, further comprising a base part (12 ) for attaching the heel unit ( 10 ) on a touring ski board, wherein the binding body ( 14 ) relative to the base part ( 12 ) is pivotable about an axis that is essentially orthogonal to the sliding board plane (E).

Images