A ski binding release system includes a spring that is releasably maintained in a first state using a pyrotechnic fastener. In the first state, a ski boot is secured in the ski binding. The pyrotechnic fastener is electrically coupled to an activation circuit. The activation circuit includes a battery, a plurality of sensors, a switch, and a controller. When the controller determines that the skier has fallen, the controller generates an output signal that transitions the switch from a disconnected state to a connected state. In the disconnected state, the pyrotechnic fastener is electrically disconnected from the battery. In the connected state, the pyrotechnic fastener is electrically connected to the battery. Electrical energy from the battery causes the pyrotechnical fastener to explode to transition the spring from the first state to a second state to release the ski boot from the ski binding.

Some aspects include a ski binding system using controllable electromagnets, alone or in combination with permanent magnets, as means of attaching or releasing a ski boot to a ski during use. Some aspects include a ski binding system using a controllable solenoid. In some aspects, microprocessor-based control releases binding electronically based on input from sensors located in binding, ski and/or boot, as well as in other equipment or clothing connected to them or to skier, or binding releases when a mechanical threshold is overcome. In some aspects, sensor data are recorded for analysis of system performance and for adjustment and improvement of system parameters based on data analytics.

Rear holding element for a ski boot comprising a heel grip (11), a lever (6) and a fitting pedal (7), characterized in that the fitting pedal (7) is mobile relative to the heel grip (11).

Some aspects include a ski binding system using controllable electromagnets, alone or in combination with permanent magnets, as means of attaching or releasing a ski boot to a ski during use. Some aspects include a ski binding system using a controllable solenoid. In some aspects, microprocessor-based control releases binding electronically based on input from sensors located in binding, ski and/or boot, as well as in other equipment or clothing connected to them or to skier, or binding releases when a mechanical threshold is overcome. In some aspects, sensor data are recorded for analysis of system performance and for adjustment and improvement of system parameters based on data analytics.

Rear holding element for a ski boot comprising a heel grip (11), a lever (6) and a fitting pedal (7), characterized in that the fitting pedal (7) is mobile relative to the heel grip (11).

System for a touring ski-binding comprising a front unit and heel unit comprising a heel member, wherein the stopper plate is switchable between an adjacent position and a protruding position, wherein the stopper plate is configures to leave the adjacent position when the touring ski binding is released, wherein the heel unit is switchable between a starting position for providing a blocking function and for receiving a ski boot, and a snap-in position for retaining the ski boot, wherein the heel unit comprises a walking means by means of which the stopper plate can be blocked in the adjacent position, wherein the blocking means with respect to the pivot axis is switchable between a blocking position and a non-blocking position depending on the position of the heel member, wherein with respect to the downhill mode the front unit in the climbing mode of the touring ski-binding is displaced to the front in the longitudinal direction of the ski, so that a ski boot present in the touring ski-binding cannot contact the heel member of the heel unit.

A heel unit for a touring ski-binding, comprising, a heel member, wherein the heel member comprises a reception bowl for receiving the heel part of a ski boot and a biasing device for biasing the heel unit against a ski boot, and wherein the heel unit is switchable between a starting position for receiving or releasing the ski boot and a snap-in position for holding the ski boot, wherein the heel unit comprises a blocking means by means of which the heel unit can be blocked in the starting position, wherein the blocking means is switchable between a blocking position and a non-blocking position.

The invention relates to an automatic heel unit (1) for a ski binding, comprising a base (7) for fitting the automatic heel unit (1) on a ski and a heel downholder (3) for holding down a ski boot in a heel region of the ski boot. The heel downholder (3) is mounted so as to be movable in relation to the base (7). The automatic heel unit (1) has a holding configuration in which the heel downholder (3) is located in a holding position and may interact with the heel region of the ski boot that is held in the ski binding in such a manner that the heel region of the ski boot is held down in a lowered position. Furthermore, the automatic heel unit (1) has a step-in configuration in which the heel downholder (3) is located in a step-in position and the heel region of the ski boot is released by the heel downholder (3). The automatic heel unit (1) comprises a heel support structure (6), which is configured separately from the heel downholder (3), for supporting, in a direction that is horizontally transverse to the ski, the heel region of the ski boot that is held in the ski binding in the holding configuration of the automatic heel unit (1).

The invention relates to an automatic heel unit for a ski binding, in particular a ski-touring binding, comprising a heel retainer, for retaining a ski boot in a heel area of the ski boot, and a heel retainer support on which the heel retainer is mounted so as to be movable along an adjustment path relative to the heel retainer support. The automatic heel unit has a holding configuration in which the heel retainer is located in a holding setting and the heel retainer can interact with the heel area of the ski boot held in the ski binding in such a way that the heel area of the ski boot is held in a lowered position. Furthermore, the automatic heel unit has a walking configuration in which the heel retainer is located in a walking setting and the heel area of the ski boot held in the ski binding is freed from the heel retainer and can be lowered toward the ski without being locked by the heel retainer in the lowered position. The heel retainer in its walking setting is located farther to the rear than in its holding setting and is movable from its walking setting to its holding setting and back again along a first area of the adjustment path. Starting from its walking setting, the heel retainer is movable along the first area of the adjustment path, beyond its holding setting, upward from the first area of the adjustment path into a second area of the adjustment path separate from the first area of the adjustment path and adjoining the first area of the adjustment path, and back again.

The invention relates to an automatic heel unit for a ski binding, in particular a ski-touring binding, comprising a heel retainer, for retaining a ski boot in a heel area of the ski boot, and a heel retainer support on which the heel retainer is mounted so as to be movable along an adjustment path relative to the heel retainer support. The automatic heel unit has a holding configuration in which the heel retainer is located in a holding setting and the heel retainer can interact with the heel area of the ski boot held in the ski binding in such a way that the heel area of the ski boot is held in a lowered position. Furthermore, the automatic heel unit has a walking configuration in which the heel retainer is located in a walking setting and the heel area of the ski boot held in the ski binding is freed from the heel retainer and can be lowered toward the ski without being locked by the heel retainer in the lowered position. The heel retainer in its walking setting is located farther to the rear than in its holding setting and is movable from its walking setting to its holding setting and back again along a first area of the adjustment path. Starting from its walking setting, the heel retainer is movable along the first area of the adjustment path, beyond its holding setting, upward from the first area of the adjustment path into a second area of the adjustment path separate from the first area of the adjustment path and adjoining the first area of the adjustment path, and back again.