Patent Application
20210213348
The present invention relates to a heel unit for an alpine touring binding, comprising a binding body which is suitable for holding a heel portion of an alpine touring shoe in a downhill position of the heel unit and for releasing the heel portion of the alpine touring shoe in an alpine touring position of the heel unit, such that the alpine touring shoe can lift off the heel unit, and a climbing aid which is adjustable between an active position and a passive position, wherein, while in the active position, the climbing aid supports the heel portion of the alpine touring shoe at a predetermined height above a sliding board plane in the alpine touring position of the heel unit. Furthermore, the present invention relates to a heel unit for an alpine touring binding, comprising a binding body which is suitable for holding a heel portion of an alpine touring shoe in a downhill position of the heel unit and for releasing the heel portion of the alpine touring shoe in an alpine touring position of the heel unit, such that the alpine touring shoe can lift off the heel unit, a first climbing aid which is adjustable between an active position and a passive position, wherein, while in the active position, the first climbing aid supports the heel portion of the alpine touring shoe at a predetermined height above a sliding board plane in the alpine touring position of the heel unit, and a second climbing aid which is adjustable between an active position and a passive position, wherein, while in the active position, the second climbing aid supports the heel portion of the alpine touring shoe at a predetermined height above a sliding board plane in the alpine touring position of the heel unit, which height is higher than the predetermined height of the first climbing aid.
Such heel units are known. A climbing aid is used in ski mountaineering to compensate for changes in the slope of the terrain while walking. Steep terrain can be compensated for by activating the climbing aid and thus increasing the support height for a heel portion of an alpine touring shoe. In conventional alpine touring bindings, one or two climbing aids are often provided, such that, in addition to a so-called zero position, in which no climbing aid is activated and a heel portion of the alpine touring shoe rests directly on a ski, a base, or a brake pedal of the heel unit of the alpine touring binding, one or two further support heights can be set by the user by adjusting the climbing aid from a passive position into an active position.
Often, the climbing aid is pivotably mounted on the binding body of the heel unit and, in order to be adjusted from the passive position into the active position, has to be pivoted into the active position by the user, by hand or using a ski pole. In this case, the user has to guide the climbing aid, in particular by pulling using a ski pole, over the entire movement path or a large part of the movement path from the passive position into the active position. In particular in adverse conditions, which often prevail when ski mountaineering in the form of ice and snow, this adjustment can be quite difficult, also because climbing aids are constructed of increasingly smaller and more difficult-to-grip components due to weight savings.
For example, if two climbing aids are provided, the second climbing aid is often also pivotably mounted on the binding body, preferably on the same shaft as the first climbing aid. The above-mentioned problems therefore also arise when adjusting the second climbing aid from the passive position into the active position. In the case of two climbing aids, a further disadvantage can be that, during an intended adjustment of the first climbing aid from the passive position into the active position by the user, also the second climbing aid is accidentally gripped and adjusted and therefore the correct support height for the heel portion of the alpine touring shoe is not found straight away.
Heel units with other types of climbing aids are also known, all of which, however, are either difficult to operate or have arrangements which are complex, relatively heavy and/or expensive to manufacture, for example pneumatically, hydraulically and/or electronically operating arrangements.
Against this background, it is an object of the present invention to provide a heel unit for an alpine touring binding, which allows a simplified operation of one or, if necessary, a plurality of climbing aids, which is comparatively simple in construction and is lightweight.
According to a first aspect of the present invention, the object on which the invention is based is achieved by a heel unit for an alpine touring binding, comprising a binding body which is suitable for holding a heel portion of an alpine touring shoe in a downhill position of the heel unit and for releasing the heel portion of the alpine touring shoe in an alpine touring position of the heel unit, such that the alpine touring shoe can lift off the heel unit, and a climbing aid which is adjustable between an active position and a passive position, wherein, while in the active position, the climbing aid supports the heel portion of the alpine touring shoe at a predetermined height above a sliding board plane in the alpine touring position of the heel unit, wherein the climbing aid is biased over the entire path of movement thereof into the active position by means of a flexible element and can be locked in the passive position.
If the climbing aid is biased into the active position over the entire movement path and can additionally be locked in the passive position, it is sufficient, for the adjustment of the climbing aid from the locked, passive position into the active position, to release this locking in order to achieve an adjustment. The climbing aid therefore no longer has to be guided over the entire path of movement thereof or over part of the movement path; it is sufficient to release a locking mechanism, which can be present as a latching mechanism or hook mechanism, for example. All locking options are conceivable in this case. In particular, the locking can be released by pressing on the climbing aid using a ski pole, for example. By biasing the climbing aid into the active position, the climbing aid moves automatically into the active position after releasing the locking. The adjustment of the climbing aid is carried out semi-automatically, so to speak, and the operation of the climbing aid is advantageously simplified.
In a preferred embodiment of the first aspect of the invention, the climbing aid can be pivotably mounted on the heel unit, in particular on the binding body. A pivotable design of the climbing aid can bring the advantages of ease of use and the option of a space-saving arrangement. The bias into the active position can advantageously be achieved by means of a leg spring as a flexible element, which requires less installation space compared to other springs, such as compression springs or tension springs.
Alternatively, however, the climbing aid can also be arranged so as to be linearly displaceable on the heel unit, in particular on the binding body. In particular, a climbing aid that is longitudinally displaceable in the ski direction is conceivable, which, after releasing the locking, can be pushed forwards in a simple manner in order to be brought into the active position. The operation of a longitudinally displaceable climbing aid is also very easy.
In particular, the climbing aid can be a first climbing aid and the heel unit can furthermore comprise a second climbing aid which is adjustable between an active position and a passive position, wherein, while in the active position, the second climbing aid supports the heel portion of the alpine touring shoe at a predetermined height above a sliding board plane in the alpine touring position of the heel unit, which height is higher than the predetermined height of the first climbing aid.
In this case, the second climbing aid can be mounted on the first climbing aid. Such an arrangement can in turn advantageously simplify the operation of the climbing aids. In addition, if the second climbing aid is mounted on a shaft which is relatively far away from the ski, it can be designed to be smaller and therefore lighter, since, proceeding from the high point on the first climbing aid, less additional height is necessary for the support surface of the second climbing aid.
In addition, if two climbing aids are provided, the first climbing aid can be locked in the passive position by means of the second climbing aid. In this way, both climbing aids can advantageously be locked in the passive position by means of only one locking mechanism.
In a particularly advantageous embodiment of the first aspect of the present invention, the first climbing aid and/or the flexible element can be configured to transfer the second climbing aid into a standby position during the adjustment of the first climbing aid from the passive position into the active position, the standby position being located between the passive position and the active position of the second climbing aid. If the first climbing aid drives the second climbing aid during the adjustment of the first climbing aid from the passive position into the active position over a section of the movement path, i.e. transfers the second climbing aid into a standby position, a shortened path has to be overcome for the adjustment of the second climbing aid into the active position. In addition, the second climbing aid can protrude from the heel unit or from the binding body in the standby position and thus be easier to grip or operate, while in the passive position it can advantageously abut close to the binding body. In this way, the operation of the second climbing aid can be simplified in that it is transferred to the standby position during the adjustment of the first climbing aid.
If two climbing aids are provided, the flexible element can preferably provide a spring force both for the first climbing aid and for the second climbing aid. Thus, only one spring is required for both climbing aids, and costs and weight can be saved. In particular, the flexible element can transmit the spring force for the first climbing aid directly by being arranged on the first climbing aid, and can transmit the spring force for the second climbing aid indirectly by being arranged on the first climbing aid and by transmitting the spring force via the first climbing aid to the second climbing aid. The second climbing aid can be biased into the active position, for example, by means of the flexible element. In addition, the second climbing aid can assume a stable position in the standby position, in particular due to the interaction of a mating surface of the second climbing aid with a mating surface of the binding body or the like and the flexible element. The exact position of the standby position can be set by an angle of the mating surface of the binding body.
According to a second aspect of the present invention, the object on which the invention is based is achieved by a heel unit for an alpine touring binding, comprising a binding body which is suitable for holding a heel portion of an alpine touring shoe in a downhill position of the heel unit and for releasing the heel portion of the alpine touring shoe in an alpine touring position of the heel unit, such that the alpine touring shoe can lift off the heel unit, a first climbing aid which is adjustable between an active position and a passive position, wherein, while in the active position, the first climbing aid supports the heel portion of the alpine touring shoe at a predetermined height above a sliding board plane in the alpine touring position of the heel unit, and a second climbing aid which is adjustable between an active position and a passive position, wherein, while in the active position, the second climbing aid supports the heel portion of the alpine touring shoe at a predetermined height above a sliding board plane in the alpine touring position of the heel unit, which height is higher than the predetermined height of the first climbing aid, wherein the first climbing aid is configured to transfer the second climbing aid into a standby position during the adjustment of the first climbing aid from the passive position into the active position, the standby position being located between the passive position and the active position of the second climbing aid.
If the first climbing aid drives the second climbing aid during the adjustment of the first climbing aid from the passive position into the active position over a section of the movement path, i.e. transfers the second climbing aid into a standby position, a shortened path has to be overcome for the adjustment of the second climbing aid into the active position. In addition, the second climbing aid can protrude from the heel unit or from the binding body in the standby position and thus be easier to grip or operate, while in the passive position it can advantageously abut close to the binding body. In this way, the operation of the second climbing aid is simplified in that it is transferred to the standby position during the adjustment of the first climbing aid.
In an embodiment of the second aspect of the present invention, the first climbing aid can be pivotably mounted on the heel unit, in particular on the binding body. A pivotable design of the climbing aid can bring the advantages of ease of use and the option of a space-saving arrangement. The bias into the active position can advantageously be achieved by means of a leg spring as a flexible element, which requires less installation space compared to other springs, such as compression springs or tension springs.
In an alternative embodiment of the second aspect of the present invention, the first climbing aid can be mounted on the heel unit, in particular on the binding body, so as to be linearly displaceable. In particular, a climbing aid that is longitudinally displaceable in the ski direction is conceivable, which, after releasing the locking, can be pushed forwards in a simple manner in order to be brought into the active position. The operation of a longitudinally displaceable climbing aid is also very easy.
Particularly preferably, the second climbing aid can be mounted on the first climbing aid. Such an arrangement can in turn advantageously simplify the operation of the climbing aids. In addition, if the second climbing aid is mounted on a shaft which is relatively far away from the ski, it can be designed to be smaller and therefore lighter, since, proceeding from the high point on the first climbing aid, less additional height is necessary for the support surface of the second climbing aid.
In a particularly advantageous embodiment of the second aspect of the present invention, the first climbing aid can be biased over the entire path of movement thereof into the active position by means of a flexible element and can be locked in the passive position. If the first climbing aid is biased into the active position over the entire path of movement thereof and can additionally be locked in the passive position, it is sufficient, for the adjustment of the climbing aid from the locked, passive position into the active position, to release this locking in order to achieve an adjustment. The first climbing aid no longer has to be guided over the entire path of movement thereof or over part of said movement path; it can be sufficient to release a locking mechanism, which can be present as a latching mechanism or hook mechanism, for example. All locking options are conceivable in this case. In particular, the locking can be released by pressing on the climbing aid using a ski pole, for example. By biasing the first climbing aid into the active position, the first climbing aid can move automatically into the active position after releasing the locking. The adjustment of the first climbing aid can take place semi-automatically, so to speak, and the operation of the climbing aid can be further simplified.
The flexible element can provide a spring force both for the first climbing aid and for the second climbing aid. In particular, the flexible element can transmit the spring force for the first climbing aid directly by being arranged on the first climbing aid, and can transmit the spring force for the second climbing aid indirectly by being arranged on the first climbing aid and by transmitting the spring force via the first climbing aid to the second climbing aid. The second climbing aid can be biased into the active position, for example, by means of the flexible element. In addition, the second climbing aid can assume a stable position in the standby position, in particular due to the interaction of a surface of the second climbing aid with a surface of the binding body or the like and the flexible element. The exact position of the standby position can be set by an angle of the surface of the binding body.
Furthermore, the first climbing aid can be locked in the passive position by means of the second climbing aid. In this way, both climbing aids can advantageously be locked in the passive position by means of only one locking mechanism.
The invention is explained in more detail below on the basis of preferred embodiments of the present invention with reference to the accompanying drawings, in which:
In the embodiment shown, the climbing aid 20 can be a first climbing aid 20 and, furthermore, a second climbing aid 30 can be provided which is likewise adjustable between an active position and a passive position, wherein, while in the active position, the second climbing aid 30 supports the heel portion of the alpine touring shoe at a predetermined height in the alpine touring position of the heel unit 10, which height is higher than the predetermined height of the first climbing aid 20. The second climbing aid 30 can be pivotably mounted on a shaft 32 on the first climbing aid 20.
The individual drawings show a transition of the climbing aid 20 from the passive position into the active position.
The flexible element can advantageously provide a spring force both for the first climbing aid 20 and for the second climbing aid 30. In the embodiment described, this takes place in that the second climbing aid 30 is mounted on the first climbing aid 20, on which the flexible element in turn acts in the form of the leg spring (not shown). As can be seen in
In order to adjust the second climbing aid 30 into the active position, it only has to be guided from the standby position into the active position, for example by hand or using a ski pole. As soon as an edge between the mating surface 40 and the unlocking surface 42, which can slide over the mating surface 16 of the binding body 12 during this adjustment, exceeds a specific point, the second climbing aid 30 can also be biased into the active position by means of the spring force of the flexible element. This position is shown in
The first climbing aid 120 is biased into the active position over the entire path of movement thereof by means of a flexible element (not shown). The flexible element can be realised, for example, by a leg spring, a compression spring or a tension spring. In addition, the first climbing aid 120 can be locked in the passive position, for example by means of latching projections or the like. A locking can take place, for example, by means of a latching projection 114 provided on the binding body 112 and by means of a driver projection 126 provided on the first climbing aid 120, which engages with the latching projection 114. A plurality of latching projections and projections designed to be complementary thereto can also be provided in order to lock the first climbing aid 120 and/or the second climbing aid 130 in the passive position.
The first climbing aid 120 can furthermore be configured to transfer the second climbing aid 130 into a standby position during the adjustment of the first climbing aid 120 from the passive position into the active position, the standby position being located between the passive position and the active position of the second climbing aid 130. In the standby position of the second climbing aid 130, which is shown in
The first climbing aid 120 can be composed of a first part 120a and a second part 120b. The first part 120a of the first climbing aid 120 can be mounted on the heel unit 110, in particular on the binding body 112, so as to be slidably and linearly displaceable in longitudinal grooves 116 formed in the binding body 112. The second part 120b of the first climbing aid 120 can be pivotably mounted on a shaft 122 formed on the first part 120a of the first climbing aid 120. Thus, an adjustment of the first climbing aid 120 can be carried out from the passive position into the active position by releasing the locking of the first climbing aid 120, sliding the first part 120a of the first climbing aid 120 forward in the longitudinal direction of the ski and pivoting the second part 120b of the first climbing aid 120 forward about the shaft 122, whereby the second part can drive the second climbing aid 130 into the standby position. This position is shown in
A shaft 132 of the second climbing aid 130 can be mounted in grooves 118 formed on both sides of the binding body 112 so as to be longitudinally displaceable in the longitudinal direction of the ski and can also be connected to the first climbing aid 120 via straps 150 formed on both sides. These straps 150 can in particular be mounted at one end on the shaft 122 of the first climbing aid 120 and at an opposite end on the shaft 132 of the second climbing aid 130. For example, this makes it possible for the flexible element to provide a spring force both for the first climbing aid 120 and for the second climbing aid 130.
The individual drawings show a transition of the first climbing aid 120 from the passive position into the active position and a transition of the second climbing aid 130 from the passive position into the standby position and into the active position.
In the standby position of the second climbing aid 230, which is shown in
The first climbing aid 220 and/or the second climbing aid 230 can be mounted pivotably on the heel unit, in particular on the binding body 212. In the third embodiment, both the first climbing aid 220 and the second climbing aid 230 can be mounted on a shaft 222.
Via a resilient projection 240, which can in particular be provided on the binding body 212 and which interacts with the lower ends of the first climbing aid 220 and/or the second climbing aid 230, or via another spring element, the first climbing aid 220 and/or the second climbing aid 230 can be biased into the active position and/or the passive position.
The individual drawings show a transition of the first climbing aid 220 from the passive position into the active position and a transition of the second climbing aid 230 from the passive position into the standby position and into the active position.
Embodiments of the present invention have been described with reference to the accompanying drawings. However, the present invention is not limited to these embodiments. Thus, many changes can be made therein without departing from the scope of the present invention. Likewise, the described embodiments can be combined with one another without departing from the scope of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2020 200 181.2 | Jan 2020 | DE | national |
