A toe piece for a device for fastening a boot on a sliding board, having a base (130; 3) intended to be fixed to the sliding board, two lateral jaws (101; 8, 9), each mounted to be rotationally mobile on the base (130; 3) about a substantially vertical rotation axis (103; 10, 11), so as to occupy a closed position to hold a boot and a separated position to release or receive a boot, and a pusher (110; 35) having two lateral trig surfaces (114; 24, 25) each cooperating with a respective ramp (104; 22, 23) of each jaw (101; 8, 9), this pusher being linked to the base by a trig spring (112; 36), and two links (120; 28, 29) each linked to a jaw by a first lateral axis (123; 14, 15) and linked together by at least one central axis (125; 32).

boot on a sliding board, having a base (130; 3) intended to be fixed to the sliding board,

two lateral jaws (101; 8, 9), each mounted to be rotationally mobile on the base (130; 3) about a substantially vertical rotation axis (103; 10, 11), so as to occupy a closed position to hold a boot and a separated position to release or receive a boot,

and a pusher (110; 35) having two lateral trig surfaces (114; 24, 25) each cooperating with a respective ramp (104; 22, 23) of each jaw (101; 8, 9), this pusher (110; 35) being linked to the base (130; 3) by a trig spring (112; 36)

and two links (120; 28, 29) each linked to a jaw (101) by a first lateral axis (123; 14, 15) and linked together by at least one central axis (125; 32).

A mechanism for attaching, for example, a boot to a ski, that uses a sphere in cylinder geometry to enable release in a wide array of incremental directions and rotations.

A binding system for a touring ski binding has a front jaw device and a rear jaw device for receiving a ski boot. In a descent mode, the front jaw device is open and the rear jaw device is closed, so that a retainer can receive a web of the ski boot, and a lever mechanism can fix a heel part of the ski boot. The rear jaw device with the lever mechanism exerts a contact pressure on the heel part of the ski boot along a boot longitudinal axis (X), so that the web is pressed into a hook system of the front jaw device, and the ski boot is thus secured against translation against the boot longitudinal axis (X).

An apparatus is provided for holding a footwear toe to a snow travel aid. The apparatus comprises jaws that grasp the toe while permitting pivotal movement of the footwear about the toe in forward and rearward directions and is for use with a heel holder that provides for lateral release. The apparatus comprises one or more resilient elements for biasing the jaws whereby the jaws are biased towards a closed position throughout the operational range of motion of the jaws. Also provided is an apparatus which comprises jaws that grasp the toe while permitting pivotal movement of footwear about the toe, wherein the apparatus is adapted for generally horizontal, forward and rearward translation relative to a longitudinal axis of the snow travel aid, selectively by a user. Also provided is an apparatus comprising jaws that grasp the toe while permitting pivotal movement of footwear about the toe, and a lock for inhibiting opening of the jaws, the lock comprising one or more resilient elements which provide resilience while inhibiting opening of the jaws.

A heel unit including a base comprising a fastening arrangement for fastening to a gliding board, a binding body, and coupling means arranged on the binding body. The coupling means engage with a heel portion of a gliding board boot in a downhill position of the gliding board binding to securely hold the gliding board boot on the gliding board binding. The coupling means protrude in a longitudinal direction from the binding body in the downhill position. The heel unit includes an Mz release mechanism to preload the coupling means into the downhill position so that, in the downhill position, the coupling means are freed from engagement with the gliding board boot upon action of a force exceeding a predetermined release force, and so that the coupling means move from the downhill position into a release position via rotational movement of the binding body about the release axis of rotation.