Abstract: A step-in ski binding with a laterally movable side-clamping member (3,4), a step-in member (26,126) coupled to the side-clamping member (3,4), a force unit (20,146) for providing a clamping force and connecting members (11,27,110,127) for moving the movable side-clamping member (3,4) from its open position to its closed position as the step-in member (26,126) is moved from a clamp-opened position to a clamp-closed position and for applying the clamping force to the movable side-clamping members (3,4) as the step-in member (26,126) is further moved from its clamp-closed position to a clamping force applied position.

Abstract: A safety binding for a ski including a body having a jaw for holding a ski boot and a support fixed to the ski. The support has a rear transverse face with two recesses therein, and a front transverse face. The body includes a transverse face having two projections thereon, each adapted to engage one of the recesses of the support. The recesses and projections define two lines of support converging at a point above the ski and disposed, respectively, on either side of the longitudinal plane of symmetry of the ski, so that the body can pivot along either one of the lines of support. A spring urges the rear face of a piston against the front transverse face of the support so that the rear traverse face of the support is urged against the transverse face of the body. The rear face of the piston includes two lines of reaction converging toward the ski.

Abstract: A safety binding adapted to be mounted on a ski for holding a ski boot thereon, wherein one of the parts, jaw or part connected to the jaw, is applied on the support means at three points, namely an upper point disposed in the longitudinal plane of symmetry of the binding and two lower points of support symmetrical with respect to this plane, the points thus defining the two lines of support, disconnection being effected by pivoting either on one of the lines of support, or on the other.

Abstract: A safety toe unit for ski binding includes a compensation mechanism to compensate the release setting of the binding for the changes in the frictional resistance to sliding of the ski boot relative to the ski which accompany the continuously changing pressure between the ball region of a skier's foot and the ski. The invention is applicable to most known kinds of safety toe unit and in particular to those safety toe units which feature a safety release mechanism including at least one spring adapted to bias one or more toe clamping elements into a ski boot securing position and operative on the occurrence of a predetermined sideways force to permit sideways pivoting of the toe clamp or at least of an element thereof to a position in which the ski boot is released from the binding.

Abstract: A safety release ski binding mounted in association with a sole plate construction which is pivotally secured to the upper surface of a ski for movement about a vertical axis. The locking structure for holding the sole plate construction in alignment with the longitudinal axis of the ski also effects a holding of the jaw plate and associated front jaw in a fixed position to effectively hold the ski boot in engagement with the bindings associated with the sole plate construction. The sole plate, while being pivotally secured to the ski, remains with the ski even after a release of the ski boot from engagement therewith. Upon the occurrence of a sufficient force causing the sole plate to be pivoted beyond a predefined limit, the locking structure associated with the jaw plate is released so that the front jaw is freely movable away from the ski boot to permit a release of the ski boot from engagement therewith.

Abstract: A safety binding for a ski comprising a housing pivotally mounted about a transverse axis, a sole clamp carried by the housing, an upward release mechanism incorporating an adjustable upward release spring and operative to locate the housing and the sole clamp in a closed position while adapted to release housing and sole clamp for upward pivotal movement about said transverse axis once the release setting of said upward release spring is exceeded. The binding also has a sideways release mechanism incorporating an adjustable sideways release spring one end of which bears against the housing. The sideways release mechanism is operative to locate the sole clamp sideways while adapted to allow the sole clamp to be displaced sideways to either side of the housing once the release setting of the sideways release spring is exceeded. The upward and sideways release springs are coil springs of different diameters and are located one within the other.

Abstract: A toe jaw for a safety ski binding having a ski boot sole hold-down mechanism which is pivotal about an axis extending generally perpendicular with respect to a base plate secured to the upper surface of a ski. A support part is provided on the hold-down mechanism and is adapted to engage the frontmost portion of the sole of the ski boot. The support part is pivotal about an axis to accommodate a movement of the ski boot away from the toe jaw upon a release of the ski boot from the ski. The spring force utilizable for returning the sole holder to the original position is the same spring force which effects a returning of the support part to the original position thereof.

Abstract: A safety toe unit for a ski binding features a toe clamp 14 attached via a pivot pin 11 to a draw rod 12 which draws the toe clamp under the effects of a bias spring 23 against a binding housing 22. Complementary pairs of abutment features are provided on the binding housing and the toe clamp to either side of the draw rod and define respective pivot axes about which the toe clamp can pivot to effect a sideways release. The arrangement features an adjustment screw 13 which cooperates with a screw-threaded intermediate member 19 located on the end of the draw rod 12 to effect vertical adjustment of the toe clamp. The arrangement enables the use of a one-piece toe clamp without the adjustment screw being subjected to the load of the bias spring 23. In modifications the adjustment screw cooperates with screw threads provided either at the end of the draw rod or on the pivot pin and the pivot pin can be slidably or fixedly connected into the end of the draw rod.

Abstract: A safety release ski binding mounted in association with a sole plate construction which is pivotally secured to the upper surface of a ski for movement about a vertical axis. The locking structure for holding the sole plate construction in alignment with the longitudinal axis of the ski also effects a holding of the jaw plate and associated front jaw in a fixed position to effectively hold the ski boot in engagement with the bindings associated with the sole plate construction. The sole plate, while being pivotally secured to the ski, remains with the ski even after a release of the ski boot from engagement therewith. Upon the occurrence of a sufficient force causing the sole plate to be pivoted beyond a predefined limit, the locking structure associated with the jaw plate is released so that the front jaw is freely movable away from the ski boot to permit a release of the ski boot from engagement therewith.

Abstract: An acceleration compensated step-in type ski binding for releasably securing a ski boot to a ski. The ski binding includes a pivotable body member mounted on a support plate attached to the ski which engages the boot on one side of a pivot and carries a mass on the opposite side of the pivot. The mass generates a moment equal and opposite to the moment generated by the acceleration of the boot so as to cancel out the internal forces resulting from such acceleration of the boot. The ski binding further includes a boot engagement assembly for engaging a first portion of the ski boot.

Abstract: A safety release ski binding mounted in association with a sole plate construction which is pivotally secured to the upper surface of a ski for movement about a vertical axis. The locking structure for holding the sole plate construction in alignment with the longitudinal axis of the ski also effects a holding of the jaw plate and associated front jaw in a fixed position to effectively hold the ski boot in engagement with the bindings associated with the sole plate construction. The sole plate, while being pivotally secured to the ski, remains with the ski even after a release of the ski boot from engagement therewith. Upon the occurrence of a sufficient force causing the sole plate to be pivoted beyond a predefined limit, the locking structure associated with the jaw plate is released so that the front jaw is freely movable away from the ski boot to permit a release of the ski boot from engagement therewith.

Abstract: A safety binding adapted to be mounted on a ski comprises a one-piece jaw in which engages and is maintained one end of the sole of a ski boot, this jaw being urged under the action of a resilient device against two support lines provided on a rear transverse face of a support member. The support lines, viewed along the axis of the ski, converge towards a point located above the ski. The resilient device comprises a pressure member bearing upon the front transverse face of the support presenting at least two lines of reaction converging towards the ski.

Abstract: A safety toe unit for a ski binding in which a spring is used to urge together two pairs of complementary abutment surfaces defined between a toe clamp and a base portion to either side of the longitudinal axis of the unit. Sideways release is achieved by angular displacement of the toe clamp about either of the pairs of complementary abutment surfaces against the force of the spring. The present toe unit allows the toe clamp to be vertically adjusted while preserving the alignment between the line of action of the spring force and the toe clamp thus avoiding undesirable tilting moments which could affect the sideways release characteristics. The spring, which may be either in compression or tension, is adjustably located in an extension of the toe clamp between two spring abutments associated respectively with the toe clamp and base portion. Both spring abutments are arranged to move vertically with the toe clamp on adjustment of a vertical adjustment screw. Several embodiments are described.

Abstract: A binding for the heel of a ski boot or shoe used with a cross-country or touring ski. The binding arrangment includes an axial rib on the ski which engages in a longitudinal groove in the bottom of the heel of the ski boot. The heel of the ski shoe has a transverse recess above the groove and a fastening element connected to the ski behind the region of the heel of the boot has a projection which can enter the transverse recess of the heel of the shoe to thus hold the heel against both vertical and transverse movement with respect to the ski. The front of the boot can be fastened to the ski in any desired manner and the shoe, when the heel binding is released, is then free to flex so that the skis can be used for "walking".

Abstract: A releasable toe holder or toe jaw for ski bindings having a sole holder movably mounted transversely with respect to the lengthwise direction of the related ski. The sole holder is retained in a normal position by a spring element and following a limited transverse movement thereof is returned back into such normal position by said spring element. The sole holder has a pedal intended to engage beneath the sole end of the ski boot. The sole holder is anchored to the ski by means of a double guide or link arrangement coupled with the spring element. One hinge or pivot of the double guide arrangement is fixedly arranged on the ski and a second hinge or pivot engages the pedal behind the sole holder.

Abstract: A safety binding adapted to be mounted on a ski. This binding comprises a one-piece jaw in which engages and is maintained one end of the sole of a ski boot, this jaw being urged under the action of a resilient device against two support lines and being characterized in that the support lines, viewed along the axis of the ski, converge towards a point located above the ski.

Abstract: A safety ski binding includes a movable boot supporting plate detachably secured to a ski. A retaining bolt mounted on the ski for both longitudinal and pivotal movement engages a recess or ramp formed on one end of the plate and is held against movement by a spring biased piston engaging a camming surface mounted on the bolt or the ski with the piston mounted on the other of the bolt or the ski. The other end of the plate is held to the same by any suitable device. The contour of the camming surface determines the value of the resilient resistance holding the bolt against movement.

Abstract: A ski binding wherein the housing of a safety device is secured directly to the upper side of the ski or to a cross country frame whose front end portion is pivoted to the ski. The housing has and/or contains friction reducing balls, rollers, liners and/or edge portions which guide a carriage for the front or rear hold-down device. The carriage is movable relative to the housing in a horizontal plane at right angles to the skiing direction and is normally held in a neutral position, in which the front part of the sole or the heel of a ski boot rests on its top surface, by the lobe of an eccentric which is rotatable in the housing and is normally held against rotation from the angular position corresponding to neutral position of the carriage by a set of prestressed helical springs reacting against the housing and bearing against a retainer having a flat abutting a flat of the eccentric.

Abstract: A safety toe clamp for a ski binding is disclosed wherein a ski boot sole holder is pivotally mounted for lateral movement on a body member provided with adjustable spring means urging said sole holder in a forward direction. Each of a pair of surfaces on said body member is each oppositely disposed outside of the central axis of the body member and adapted to cooperate with corresponding surfaces on the sole holder, the cooperating surfaces respectively being adapted to form a first swivel axis separated from the central axis of the toe clamp upon the application of an initial lateral force, and a second swivel axis upon application of further lateral movement of the sole holder.

Abstract: On a support for attachment to a ski there is at least one ski-boot clamp that is movable from a boot-clamping to a boot-releasing position. A leaf spring has one end disposed in the clamp while means on the support hold the other end of the spring. The spring normally holds the clamp in clamping position but yields to a force sufficient to cause the spring to bend to permit the clamp to be moved out to boot-releasing position. The spring is curved transversely, with its concave side facing in the direction of the counter force that the spring exerts on the clamp while resisting movement of the clamp toward releasing position.

Abstract: In a ski boot toe binding of the type in which a boot toe holding member is swingably connected to a pivotable body by a pair of arms, a slidable cam plate is provided between a base plate and the pivotable body. The arms are held in an inoperative position independent of the cam plate, while the toe holding member is in a toe holding central position and is swung from the central position through a predetermined stroke, to allow the cam plate to take a locking position where the pivotable body is immovably engaged with the base plate. The cam plate is moved in the lengthwise direction of the base plate by an arm after the toe holding member is swung beyond the predetermined stroke whereby it is moved to an unlocked position where the engagement between the pivotable body and the base plate is released to allow the pivotable body to rotate relative to the base plate.

Abstract: An improvement in a front jaw for a safety ski binding. A base plate and a base member are fixed together and have two axes thereon which are arranged perpendicularly to the base plate. Each axis pivotally supports a two-arm lever so that the longer lever arm engages the ski boot and the shorter lever arm engages a locking element which in turn engages a locking member movable against the force of a spring. The specific improvement is the utilization of a single locking member which is spring loaded and urged into engagement with a locking element. The locking element has a curved sector with differently inclined portions thereon so that as the curved sector moves relative to the locking element upon a swinging motion of the lever arms, the locking member will be moved against the spring resistance to a certain threshold point after which the lever arms will be permitted to move freely outwardly to facilitate a releasing function.