Adjustment device for safety ski binding

Claim 2

In a safety ski binding, a device for variably adjusting the distance between a toe-end and a heel-end system as a function of the length of a ski boot and for compensating for the variations normally occurring in said distance as a consequence of the momentary bending of the ski during ski runs, said device comprising a flat plate fixedly mounted with respect to a ski during use of the device, an elongated rod having a polygonal cross-section and mounted for rotational movement about its longitudinal axis, means including an externally threaded member slidably mounted on said rod at one portion and coacting with said plate to move along the longitudinal axis of said ski in response to manual rotational movement of said rod, a member fixedly mounted to said rod at another portion, a compression spring interposed between said externally threaded member and said member, a fixed cylindrical member engaging said rod at one end portion and a transverse deflectable spring blade deflected in a direction vertical to the longitudinal axis of said rod in response to the rotation of said rod and rigid in a direction parallel to the longitudinal axis of said rod and abutting said rod to bias same into continuous contact with said cylindrical member, and wherein one of said fixed cylindrical member or said spring blade is configured to prevent the lateral movements of said rod.

Claim 3

A device as set forth in claim 1, wherein said flat plate has means therein defining notches engagable with said means including said externally threaded member, and a rotatably mounted thrust bearing abutting said threaded member.

Claim 4

A device as set forth in claim 1, wherein said transverse spring blade has a central arcuate portion and wherein said rod has a cylindrical pivot at said one end portion defining an extension of reduced diameter operative to engage said central arcuate portion of said transverse spring blade.

Claim 5

A safety ski binding usable with a ski and a ski boot comprising: ski boot engaging means for releasably engaging a ski boot on a ski during use of the ski binding; means responsive to a force applied by said ski boot to said ski boot engaging means resulting from a deformation of said ski during use for permitting a change in the position of said ski boot engaging means along the longitudinal axis of said ski comprising means mounting said ski binding on said ski during use thereof for longitudinal movement therealong, an elongated shaft having a polygonal cross-section along substantially the whole length thereof; a first member fixedly mounted with respect to said ski, a second member slidably mounted on said shaft and coactive with said first member to resist longitudinal movement thereof, spring means disposed on said shaft for urging said second member towards one end portion of said shaft and for permitting said shaft and said ski boot engaging means to move longitudinally with respect to said ski whenever a force is applied to said one end of said shaft as a result of a force applied to said ski boot engaging means, and means for variably adjusting the position of said ski boot engaging means along the longitudinal axis of said ski to accommodate for different sizes of ski boots including means mounting said shaft for rotational movement about its longitudinal axis comprising a fixed cylindrical member engaging said shaft at the other end portion and a transverse deflectable spring blade deflected in a direction vertical to the longitudinal axis of said shaft in response to the rotation of said shaft and rigid in a direction parallel to the longitudinal axis of said shaft and abutting said shaft to bias same into continuous contact with said cylindrical member, and wherein one of said fixed cylindrical member and said spring blade is configured to prevent the lateral movements of said shaft; and restoring means for restoring said ski boot engaging means to its original position upon the removal of said force.

Claim 6

A safety ski binding usable with a ski and a ski boot comprising: ski boot engaging means for releasably engaging a ski boot on a ski during use of the ski binding; means responsive to a force applied by said ski boot to said ski boot engaging means resulting from a deformation of said ski during use for permitting a change in the position of said ski boot engaging means along the longitudinal axis of said ski comprising means mounting said ski binding on said ski during use thereof for longitudinal movement therealong, an elongated shaft having a polygonal cross-section along substantially the whole length thereof; a first member fixedly mounted with respect to said ski, a second member slidably mounted on said shaft and coactive with said first member to resist longitudinal movement thereof, spring means disposed on said shaft for urging said second member towards one end portion of said shaft and for permitting said shaft and said ski boot engaging means to move longitudinally with respect to said ski whenever a force is applied to said one end of said shaft as a result of a force applied to said ski boot engaging means, and means for variably adjusting the position of said ski boot engaging means along the longitudinal axis of said ski to accommodate for different sizes of ski boots including means mounting said shaft for rotational movement about its longitudinal axis comprising a fixed cylindrical member engaging said shaft at the other end portion and a transverse deflectable spring blade deflected in a direction vertical to the longitudinal axis of said shaft in response to the rotation of said shaft and rigid in a direction parallel to the longitudinal axis of said shaft and abutting said shaft to bias same into continuous contact with said cylindrical member, and wherein one of said fixed cylindrical member and said spring blade is configured to prevent the lateral movements of said shaft; and restoring means for restoring said ski boot engaging means to its original position upon the removal of said force.

Claim 7

A safety ski binding according to claim 4, further comprising means for variably adjusting the position of said ski boot engaging means along the longitudinal axis of said ski to accommodate for different sizes of ski boots.

Claim 8

A safety ski binding according to claim 4, wherein said spring means comprises a compressible spring.

Claim 9

In a safety ski binding according to claim 4, wherein said first member comprises a rack having teeth and wherein said second member has external threads engagable with said teeth.