Ski-binding

Claim 2

A safety binding for a ski boot comprising: a baseplate adapted to be mounted to a ski; a supporting element integral with said boot; two arms pivotally mounted to said baseplate and being arranged symmetrically relative to the longitudinal axis of said ski; each arm including a retaining jaw extending over the plane of said baseplate and cooperating with a lateral edge of said supporting element; a resilient element mounted on said baseplate; a movement transmitting element inter-connecting said resilient element and said jaws of said arms; said resilient element acting through said movement transmitting element to apply said jaws against said supporting element and to allow a safety release of said jaws from said supporting element in the event of an abnormally high load applied by said boot; said arms rotating about a vertical axis and simultaneously moving longitudinally relative to said baseplate to allow clamping or release of said jaws; said transmitting element moving longitudinally in relation to the baseplate, each articulated arm: rotating about a vertical axis which is fixed in relation to the transmitting element, and pivoting slidingly about a supporting point which is fixed in relation to the baseplate and comprising a ramp upon which said supporting slides; said ramp being located between boot-retaining jaw and said vertical axis of rotation fixed in relation to the transmitting element; said resilient element being in the form of a spring arranged along the longitudinal axis of the ski: one end of said spring bearing against a shoulder integral with the baseplate, and the other end of said spring bearing against a shoulder integral with said transmitting element.

Claim 3

A safety binding for a ski boot comprising: a baseplate adapted to be mounted to a ski; a supporting element integral with said boot; two arms pivotally mounted to said baseplate and being arranged symmetrically relative to the longitudinal axis of said ski; each arm including a retaining jaw extending over the plane of said baseplate and cooperating with a lateral edge of said supporting element; a resilient element mounted on said baseplate; a movement transmitting element inter-connecting said resilient element and said jaws of said arms; said resilient element acting through said movement transmitting element to apply said jaws against said supporting element and to allow a safety release of said jaws from said supporting element in the event of an abnormally high load applied by said boot; said arms rotating about a vertical axis and simultaneously moving longitudinally relative to said baseplate to allow clamping or release of said jaws; said transmitting element moving longitudinally in relation to the baseplate, each articulated arm: rotating about a vertical axis which is fixed in relation to the transmitting element, and pivoting slidingly about a support point which is fixed in relation to the baseplate and comprising a ramp upon which said supporting point slides; said ramp being located between the boot-retaining jaw and said vertical axis of rotation fixed in relation to the transmitting element; said transmitting element being caused to move longitudinally by the resilient element, in a direction running from the jaw to said supporting point; said binding further comprising a voluntary-ski-removal element in the form of a lever which is hinged in relation to the baseplate and which cooperates with a ramp integral with the transmitting element, said lever causing said transmitting element to move longitudinally in a direction running from said point of support towards the jaw, and being adapted to move between two positions: a first position in which: the transmitting element is locked in relation to the baseplate, the articulated arms are free to pivot and move the jaws away from the boot, a second position in which: the transmitting element is unlocked and transmits, to the articulated arms and jaws, the force applied by the resilient element.

Claim 4

A safety binding for a ski boot comprising: a baseplate adapted to be mounted to a ski; a supporting element integral with said boot; two arms pivotally mounted to said baseplate and being arranged symmetrically relative to the longitudinal axis of said ski; each arm including a retaining jaw extending over the plane of said baseplate and cooperating with a lateral edge of said supporting element; a resilient element mounted on said baseplate; a movement transmitting element inter-connecting said resilient element and said jaws of said arms; said resilient element acting through said movement transmitting element to apply said jaws against said supporting element and to allow a safety release of said jaws from said supporting element in the event of an abnormally high load applied by said boot; said arms rotating about a vertical axis and simultaneously moving longitudinally relative to said baseplate to allow clamping or release of said jaws; said transmitting element moving longitudinally in relation to the baseplate, each articulated arm: rotating about a vertical axis which is fixed in relation to the transmitting element, and pivoting slidingly about a support point which is fixed in relation to the baseplate and comprising a ramp upon which said supporting point slides; said ramp being located between the boot-retaining jaw and said vertical axis of rotation fixed in relation to the transmitting element; said transmitting element being caused to move longitudinally by the resilient element, in a direction running from the jaw to said supporting point; said binding further comprising a voluntary-ski-removal element in the form of a lever which is hinged in relation to the baseplate and which cooperates with a ramp integral with the transmitting element, said lever causing said transmitting element to move longitudinally in a direction running from said point of support towards the jaw, and being adapted to move between two positions: a first position in which: the transmitting element is locked in relation to the baseplate, the articulated arms are free to pivot and move the jaws away from the boot, a second position in which: the transmitting element is unlocked and transmits, to the articulated arms and jaws, the force applied by the resilient element.

Claim 5

A safety binding for a ski boot, according to claim 2, further comprising a resilient system interposed between the two articulated arms in order to separate said arms automatically during voluntary ski-removal.

Claim 6

In combination, a safety binding and a ski boot comprising: a baseplate adapted to be mounted to a ski; a supporting element integral with said boot; two arms pivotally mounted to said baseplate and being arranged symmetrically relative to the longitudinal axis of said ski when mounted thereon; each arm including a retaining jaw extending over the plane of said baseplate and cooperating with a lateral edge of said supporting element; a resilient element mounted on said baseplate; a movement transmitting element inter-connecting said resilient element and said jaws of said arms; said resilient element acting through said movement transmitting element to apply said jaws against said supporting element and to allow a safety release of said jaws from said supporting element in the event of an abnormally high load applied by said boot; said arms rotating about a vertical axis and simultaneously moving longitudinally relative to said baseplate to allow clamping or release of said jaws; one end of said boot being provided with a recess which, after release, allows the retaining jaws to pass under the sole of the boot, when said boot pivots in response to a lateral load.

Claim 7

In combination, a safety binding and a ski boot comprising: a baseplate adapted to be mounted to a ski; a supporting element integral with said boot; two arms pivotally mounted to said baseplate and being arranged symmetrically relative to the longitudinal axis of said ski when mounted thereon; each arm including a retaining jaw extending over the plane of said baseplate and cooperating with a lateral edge of said supporting element; a resilient element mounted on said baseplate; a movement transmitting element inter-connecting said resilient element and said jaws of said arms; said resilient element acting through said movement transmitting element to apply said jaws against said supporting element and to allow a safety release of said jaws from said supporting element in the event of an abnormally high load applied by said boot; said arms rotating about a vertical axis and simultaneously moving longitudinally relative to said baseplate to allow clamping or release of said jaws; one end of said boot being provided with a recess which, after release, allows the retaining jaws to pass under the sole of the boot, when said boot pivots in response to a lateral load.

Claim 8

A safety binding for a ski boot comprising: a baseplate adapted to be mounted to a ski; a supporting element integral with said boot; two arms pivotally mounted to said baseplate and being arranged symmetrically relative to the longitudinal axis of said ski; each arm including a retaining jaw extending over the plane of said baseplate and cooperating with a lateral edge of said supporting element; a resilient element mounted on said baseplate; a movement transmitting element inter-connecting said resilient element and said jaws of said arms; said resilient element acting through said movement transmitting element to apply said jaws against said supporting element and to allow a safety release of said jaws from said supporting element in the event of an abnormally high load applied by said boot; said arms about a vertical axis and simultaneously moving longitudinally relative to said baseplate to allow clamping or release of said jaws; each jaw comprising at least one release ramp ending in a release nose, the supporting element integral with the boot sliding against said ramp; said supporting element integral with the boot including two housings located one on each side thereof, said housings being substantially trapezoidal in cross-section and being adapted to receive therein said ramps.

Claim 9

A safety binding for a ski boot comprising: a baseplate adapted to be mounted to a ski; a supporting element integral with said boot; two arms pivotally mounted to said baseplate and being arranged symmetrically relative to the longitudinal axis of said ski; each arm including a retaining jaw extending over the plane of said baseplate and cooperating with a lateral edge of said supporting element; a resilient element mounted on said baseplate; a movement transmitting element inter-connecting said resilient element and said jaws of said arms; said resilient element acting through said movement transmitting element to apply said jaws against said supporting element and to allow a safety release of said jaws from said supporting element in the event of an abnormally high load applied by said boot; said arms about a vertical axis and simultaneously moving longitudinally relative to said baseplate to allow clamping or release of said jaws; each jaw comprising at least one release ramp ending in a release nose, the supporting element integral with the boot sliding against said ramp; said supporting element integral with the boot including two housings located one on each side thereof, said housings being substantially trapezoidal in cross-section and being adapted to receive therein said ramps.

Claim 10

A safety binding for a ski boot, according to claim 5, wherein the small base of the trapezoidal section, substantially parallel with the plane of the sole, is arranged below the large base.

Claim 11

A safety binding for a ski boot, according to claim 6, wherein the height of the jaw is less than the height of the cross-sectionally trapezoidal housing in which said jaw engages.