Front unit comprising a lowerable holding device

1 . A front unit for a touring binding, which is to be mounted on a sliding board and has a mounting surface that points in the direction of a sliding board surface and defines a sliding board plane, the front unit being adjustable between a downhill configuration and a climbing configuration, comprising:

a first holding device which is configured, in the downhill configuration of the front unit, to fix a front portion of a sliding board boot to the touring binding for a descent, the first holding device being adjustable between an active position and a passive position, and the first holding device being set into the active position in the downhill configuration of the front unit and being set into the passive position in the climbing configuration of the front unit, wherein the first holding device is arranged closer to the sliding board plane in the passive position than in the active position;

a second holding device which is configured to secure a toe portion of the sliding board boot, for ascent with the touring binding, in the climbing configuration of the front unit, in such a way that the sliding board boot is pivotable about a hinge pin that is substantially in parallel with the sliding board plane and substantially perpendicular to a sliding board longitudinal axis, wherein the second holding device comprises two arms which are pivotably mounted on a base of the front unit and have holding means which are configured to pivotally hold the sliding board boot in the climbing configuration of the front unit, and wherein an opening angle of the arms of the second holding device relative to one another in a starting configuration of the front unit is greater than in the downhill configuration of the front unit and/or the climbing configuration of the front unit; and

a lever assembly comprising an opening lever and a deflection mechanism,

wherein the opening lever has an actuating portion and is adjustable by means of the actuating portion between a downhill position, a starting position, and a climbing position and the lever assembly is configured to adjust the front unit between the downhill configuration, a starting configuration, and the climbing configuration by means of an adjustment of the opening lever between the downhill position, the starting position and the climbing position,

wherein the deflection mechanism comprises a locking lever, which is formed in one piece with the opening lever or is immovable relative to the opening lever, and an adjusting lever which is connected to the opening lever and/or the locking lever and which is configured to transmit an adjusting movement of the opening lever to the second holding device in order to effect a movement of the arms of the second holding device relative to one another to modify the opening angle of the arms,

wherein one end of the locking lever has a latching portion which is configured to engage with a complementary latching portion provided on the base of the front unit in the climbing position of the opening lever, in order to lock the second holding device in the active position, in the climbing position of the front unit, and

wherein the opening lever is pivotably mounted about a swivel pin in such a way that the latching portion is able to pivot in front of and behind the complementary latching portion in relation to a direction in parallel with the sliding board longitudinal axis.

2 . The front unit of claim 1 , wherein the first holding device is mounted on the base of the front unit so as to be pivotable about an axis of rotation which is substantially in parallel with the sliding board plane and is substantially perpendicular to the sliding board longitudinal axis.

3 . The front unit of claim 1 , wherein the first holding device comprises two clamping jaws which have contact surfaces which are configured to come into contact with the front portion of the sliding board boot in order to securely hold the sliding board boot when the front unit is set into the downhill configuration and the first holding device is set into the active position.

4 . The front unit of claim 1 , wherein the second holding device is adjustable between an active position and a passive position and is set into the active position in the climbing configuration of the front unit and is set into the passive position in a starting configuration of the front unit.

5 . The front unit of claim 4 , wherein the first holding device comprises a tread surface for a sole portion of the sliding board boot on its side facing away from the sliding board; and

wherein the front unit is configured such that, by stepping onto the tread surface of the first holding device with the sole portion of the sliding board boot, the first holding device is adjusted from the active position to the passive position, and/or the second holding device is adjusted from the passive position into the active position.

6 . The front unit of claim 1 , wherein the two arms of the second holding device are mounted on the base of the front unit so as to be pivotable about hinge pins that are substantially in parallel with the sliding board longitudinal axis or about hinge pins that are substantially in parallel with the sliding board plane and substantially perpendicular to the sliding board longitudinal axis.

7 . The front of claim 1 , wherein the first holding device is arranged further back, in a direction of travel in parallel with the sliding board longitudinal axis, than the second holding device.

8 . The front unit of claim 1 , wherein the opening lever is pivotably mounted about a swivel pin; and

wherein the pivot angle of the opening lever is at least approximately 90°.

9 . The front unit of claim 1 , wherein the lever assembly is further configured to block the first holding device in the active position, in the downhill position of the opening lever.

10 . The front of claim 1 , wherein the first holding device comprises a release mechanism having at least one resilient element; and

wherein the release mechanism is configured to bias the first holding device into a holding position in which the first holding device securely holds the front portion of the sliding board boot, and, when a predetermined release force acting on the first holding device is exceeded, to bring the first holding device into a release position in which the front portion of the sliding board boot is released.

11 . The front of claim 1 wherein, the second holding device comprises a clamping mechanism having at least one resilient element; and

wherein the clamping mechanism is configured to bias the second holding device into the active position and/or into the passive position.

12 . The front of claim 1 , further comprising:

a tread portion having a tread plate for a sole portion of the sliding board boot, wherein the tread portion is mounted on the base of the front unit or on the sliding board and is configured to support the sole portion of the sliding board boot on the tread plate at a predetermined height above the sliding board plane.

13 . The front unit of claim 12 , wherein the tread plate is height-adjustable in such a way that a distance between the tread plate and the sliding board plane can be changed.

14 . A touring binding comprising:

a heel unit; and

a front unit mounted on a sliding board and having a mounting surface that points in the direction of a sliding board surface to define a sliding board plane, the front unit being adjustable between a downhill configuration and a climbing configuration, wherein the front unit further comprises:

a first holding device configured, in the downhill configuration of the front unit, to fix a front portion of a sliding board boot to the touring binding for a descent, the first holding device being adjustable between an active position and a passive position, and the first holding device being set into the active position in the downhill configuration of the front unit and being set into the passive position in the climbing configuration of the front unit, wherein the first holding device is arranged closer to the sliding board plane in the passive position than in the active position;

a second holding device configured to secure a toe portion of the sliding board boot, for ascent with the touring binding, in the climbing configuration of the front unit, in such a way that the sliding board boot is pivotable about a hinge pin that is substantially in parallel with the sliding board plane and substantially perpendicular to a sliding board longitudinal axis, wherein the second holding device comprises two arms which are pivotably mounted on a base of the front unit and have holding means which are configured to pivotally hold the sliding board boot in the climbing configuration of the front unit, and wherein an opening angle of the arms of the second holding device relative to one another in a starting configuration of the front unit is greater than in the downhill configuration of the front unit and/or the climbing configuration of the front unit; and;

a lever assembly comprising an opening lever and a deflection mechanism,

wherein the opening lever has an actuating portion and is adjustable by means of the actuating portion between a downhill position, a starting position, and a climbing position and the lever assembly is configured to adjust the front unit between the downhill configuration, a starting configuration, and the climbing configuration by means of an adjustment of the opening lever between the downhill position, the starting position and the climbing position,

wherein the deflection mechanism comprises a locking lever, which is formed in one piece with the opening lever or is immovable relative to the opening lever, and an adjusting lever which is connected to the opening lever and/or the locking lever and which is configured to transmit an adjusting movement of the opening lever to the second holding device in order to effect a movement of the arms of the second holding device relative to one another to modify the opening angle of the arms,

wherein one end of the locking lever has a latching portion which is configured to engage with a complementary latching portion provided on the base of the front unit in the climbing position of the opening lever, in order to lock the second holding device in the active position, in the climbing position of the front unit, and

wherein the opening lever is pivotably mounted about a swivel pin in such a way that the latching portion is able to pivot in front of and behind the complementary latching portion in relation to a direction in parallel with the sliding board longitudinal axis.

15 . The touring binding claim 14 , further comprising a brake assembly.

16 . The front unit of claim 1 , wherein the opening lever is pivotably mounted about a swivel pin, and the pivot angle of the opening lever is at least approximately 150°.

17 . The front unit of claim 12 , wherein the tread plate is configured to move in a direction that is substantially in parallel with the sliding board plane and substantially perpendicular to the sliding board longitudinal axis, in case of a lateral release of the first holding device.