Abstract: A heel holder includes a base plate, a bearing block supported on the base plate, a binding housing pivotally supported on the bearing block, a control lever pivotally supported on the bearing block and engaging a control element on the binding housing, a release spring which biases the control lever, and a two-arm release lever which is pivotally supported on the control lever and has on a load arm a first extension which can engage a projection on the binding housing and a second extension which can serve as a stop for limiting upward swinging of the binding housing. The swivel axle for the release lever extends through two arcuate holes in sidewalls of the bearing block concentric with the pivot axis of the control lever.

Abstract: A safety ski binding includes a base member having a sole holder pivotally supported thereon, and a locking mechanism biased by a locking spring can releasably hold the sole holder in a downhill skiing position. The locking mechanism includes a control surface provided on the rear portion of the sole holder and a locking lever biased by the locking spring into engagement with the control surface. A hand lever is pivotally supported on the locking lever and has a manually operable force arm, a load arm which can engage the sole holder and move it toward its open position when the force arm is moved in a first direction, and an extension which can engage the sole holder and move it toward its downhill skiing position when the force arm is moved in a second direction opposite the first direction.

Abstract: The invention relates to a heel holder for a safety ski binding, in particular for a safety ski binding for use in both cross-country skiing and downhill skiing. The heel holder has a bearing block fixedly oriented relative to the ski and a housing which carries a sole holder. The housing is supported for an upward pivoting movement about a transversely extending axis provided on the bearing block and against the force of a spring. A spring is arranged in a chamber provided on the housing. One end of the spring is supported on a housing-fixed part and the other end is supported on an adjustable abutment pivotally supported on the bearing block. A two-arm release lever is hingedly connected to the bearing block. A control bolt exists on the housing and is guided along a control cam surface arranged on the two upstanding sidewalls of the bearing block.

Abstract: The invention relates to a safety ski binding, in particular a heel holder, comprising a sole holder, which is pivotal about a transversely extending axis on a bearing block, which sole holder is held in the downhill skiing position by a locking rocker arm which is pivotally supported on a sole holder, which locking rocker arm has on the one side a locking projection which, in the downhill skiing position, grips under a locking nose arranged on the bearing block, and on the other side is provided with a locking notch, into which is received a locking member biased by a release spring at least in the downhill skiing position, which locking member is supported in a pivotal spring housing which is movable relative to the bearing block and is, to a limited extent, movable in guideways provided therefor, whereby for the voluntary opening of the sole holder a release lever which is pivotally supported on the sole holder is provided through the operation of which the spring housing will be swung up and the locking m

Abstract: A safety ski binding having a release member actuable in response to forces or moments exceeding a threshold value, a carriage biased forwardly by a carriage spring, a sole holder mounted on the carriage and biased to an open position, a locking lever mounted on the carriage for releasably locking the sole holder in the open position, a locking lever spring biasing the locking lever to the position for opening the sole holder and for biasing the carriage rearwardly, a locking pawl for controlling the condition of the locking lever, and a connecting mechanism responsive to actuation of the release member for actuating the locking pawl to effect rearward movement of the carriage under the influence of the locking lever spring without overcoming the force of the carriage spring.

Abstract: A release ski binding has a sole plate which is pivotal in its central region about an approximately vertical axis and is tiltable up about a transverse axis which is arranged in front of the vertical axis, which sole plate is held in the skiing position by a resilient holding mechanism which, during a release, effects an opening of the jaws which hold the ski show on the ski.In order to bring about a simple structural design of the binding, the holding mechanism has associated with it a spring housing which is movably supported on the sole plate, the spring of which spring housing urges a locking member for the jaws into the clamping position. The locking member is arranged on the sole plate.

Abstract: A rear ski-binding element comprises a heel-holding member carried by a plate pivoted about an axis at right angles to the top ski face. Lateral flanges formed on the pivotal plate are each adapted to carry a lateral packing member. Each packing member has a resilient inner wall which is capable of outward elastic deformation under the action of engagement of a ski boot. The rear ski-binding element is thus automatically adaptable to ski boots having different widths.

Abstract: The invention relates to a heel holder for a safety ski binding, in particular for a safety ski binding for use in both cross-country skiing and downhill skiing. The heel holder has a bearing block fixedly oriented relative to the ski and a housing which carries a sole holder. The housing is supported for an upward pivoting movement about a transversely extending axis provided on the bearing block and against the force of a spring. A spring is arranged in a chamber provided on the housing. One end of the spring is supported on a housing-fixed part and the other end is supported on an adjustable abutment pivotally supported on the bearing block. A two-arm release lever is hingedly connected to the bearing block for effecting a switching between a cross-country mode and a downhill mode of skiing as well as a release of the ski boot from the binding. A control bolt exists on the housing and is guided along a control cam surface arranged on the two upstanding sidewalls of the bearing block.

Abstract: A latching apparatus for use with a ski binding. The apparatus has a latching element adapted to pivot multidirectionally upon the application of an external force. Elastic elements are provided to bias the latching element and to allow for its multidirectional pivoting. The inventive apparatus makes it possible to achieve increased vertical-to-lateral release thresholds having a ratio of greater than 2:1.

Abstract: An integral ski boot binding formed by a boot and operably connected boot plate is pivotally and releasably connected at a forward end to a toepiece mounted on a ski. A heel of the boot can be left free for touring skiing or clamped by a heelpiece mounted on the ski for alpine skiing. When the binding is released from the ski, a walking sole is attached to the boot plate. In an alternative embodiment, the boot plate is selectively positionable between two positions. In a first position, for touring, the forward end of the boot plate connects to the toepiece and in a second position, for alpine skiing, the forward end of the boot plate is directed toward a rearward portion of the boot, and connects to the toepiece at a point approximately midway along the length of the boot.

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 ski binding having a sole holder pivotally secured to a base member. The sole holder is held in condition of use by a locking member, which locking member is engaged by a locking part. The locking part is urged into engagement with the locking member by a spring. The locking part is guided in a limited manner in a guideway provided on a support part, which support part is pivotally secured to the base. The support part carries the spring which controls the force necessary to effect a release of the binding. A release lever is pivotally secured to the housing by means of two axially spaced and separate axles. A bolt, which extends transversely with respect to the longitudinal axis of the ski, is provided for blocking the free upward travel of the housing when the release lever is in the normal position of use for facilitating downhill skiing. A movement of the release lever to the release position will permit the housing to freely move relative to the bolt.

Abstract: A ski boot heel binding having a pivotable heel engaging jaw member is provided with first and second cam members both swingably mounted to a supporting frame body on a base plate. The second cam member has a transverse rod slidably engaged with a recess formed in the rear part of the jaw member and acts upon the first cam member to swing back the latter against a spring force when the second cam member is rotated by the upward movement of the transverse rod engaging with the recess in the jaw member.

Abstract: A safety ski binding arrangement utilizing a sole plate pivotally secured to the ski and remaining with the ski following a release of the ski boot from engagement therewith. A front jaw is mounted on the sole plate and is adapted to move forwardly and rearwardly relative thereto. A locking mechanism is provided to hold the front jaw in a fixed position relative to the sole plate. Lateral forces applied to the locking arrangement will cause the sole plate to swivel about the pivot axis support therefor and effect an unlocking of the securement of the front jaw to the sole plate. The pressure applied by the ski boot to the front jaw will cause the front jaw to move forwardly away from the ski boot and facilitate a release of the ski boot from engagement with the ski. Following a release of the ski boot from engagement with the ski, a weak return spring generates the necessary force to effect a return of the sole plate to the longitudinally aligned position relative to the ski.

Abstract: A safety binding for use in conjunction with cross-country skis that delivers a positive boot to ski action while at the same time having the ability to release in the event the skier experiences a lateral or twisting fall to one side or the other of the skis. The binding includes a toe-piece, mounted upon the front of the boot, that has an extended section which is slidably received within a housing mounted upon the top surface of the ski. The extended section of the toe-piece is held in contact against the rear wall of the housing by means of an detent mechanism having an adjustable spring tension. The side walls of the housing are open so that the toe-piece is able to pivot laterally in either direction about the rear wall of the housing so as to overcome the holding force of the detent and thereby allow the toe-piece to separate from the ski mounted housing.

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 ski binding includes a step-in lever or latch for releasably clamping a ski boot to a sole plate. The latch is pivotally mounted on the bight of a U-shaped bail having ends pivoted within the sole plate. As the ski boot is stepped downwardly, the latch is rotated and translated upwardly by camming action of an arcuate undersurface eccentrically located with respect to the bight. A wedge surface interconnecting the arcuate undersurface and an opposed surface frictionally engages the ski boot and continues pivoting of the latch until an opposed latching surface moves from one side of the bail to the other in order to provide an over-center toggle action to cause the latching surface to overlie the ski boot heel extension.

Abstract: A step-in safety ski binding comprises a stirrup mounted to a support, a boot clasp is rotatably mounted to the stirrup and includes a first part which engages the ski boot sole and a second part which pivots on the bridging section of the stirrup. An elastic locking mechanism is provided laterally between the sole engaging part and the stirrup legs so that the boot sole can be automatically locked therein and is releasable therefrom upon application of a predetermined minimum separation force.

Abstract: In a safety ski binding, a heel hold-down device has a heel retaining member urged by spring means to its heel retaining position and is pivotally mounted by means of a pair of lateral arms extending upwardly and rearwardly from a transverse horizontal axis, these lateral arms having their upper ends interconnected by a shaft extending through the retaining member, this shaft being rigid with a bow-shaped element of which the central section normally bears against the ski surface. Spring means constantly urge the retaining member to its inoperative position and may consist of a single steel wire coiled along lateral portions thereof formed with end loops slidably engaging the relevant lateral arms.

Abstract: A safety ski binding for use with a ski boot having an ankle cuff which is pivotally secured for movement about a transverse axis to the remaining shell portion of the ski boot. The rear side of the ankle cuff of the ski boot has a reinforcing member defining a shoulder or the like. The shoulder of the reinforcing member is engaged by a binding part mounted on the ski binding and has a surface thereon adjustably supported for movement in a vertical direction to control the location of engagement between the shoulder and the surface.

Abstract: A safety ski binding wherein the holding-down device for the heel of a ski boot constitutes the shorter arm of a two-armed bell crank lever the longer arm of which constitutes or carries one coupling element of a disengageable coupling. The other element of the coupling is provided on or forms part of a yoke which is pivotably mounted on a ski or on a part which is secured to the ski and is rigid with or movably supports a pivot member which defines for the bell crank lever an axis extending transversely of the skiing direction. The lever is pivotable about and is movable transversely of the axis of the pivot member, either with or relative to the pivot member. A helical expansion or compression spring is provided to oppose the disengagement of the coupling.

Abstract: A heel holding release binding mountable on a ski and having a pivotal housing which has a movable blocking part locked by a locking element which can be moved against the force of a spring. In a position of use, the locking element engages a stop arranged on an operating lever which is pivotally supported on the housing. The blocking part is formed by a bolt which extends parallel to the upper side of the ski and terminates at opposite ends thereof in slots provided in the sidewalls of the housing. The base plate has a recess therein into which is received, in the position of use of the heel holder, an extension, shoulder or the like on the lever.

Abstract: A safety ski binding having a reinforcing member on a ski boot, which ski boot has a shaft portion which is pivotal about a transverse axis. The reinforcing member has a shoulder thereon which is engageable with a removable support to limit the backward pivoting movement of the shaft portion but permit a desired amount of frontward movement. A lever is provided which is movable into and out of supporting engagement with the shoulder to facilitate entry of the ski boot into the ski binding.

Abstract: A ski boot heel release binding, comprises a mounting base plate which is adjustably connected to a toe jaw part via a touring plate. The base plate includes an upstanding portion which supports a transversely positioned heel mounting pivot. A heel holder includes a slot which is vertically elongated on the holder in the closed position which forms a guide for the mounting pivot to pivotally mount the heel holder on the base plate upstanding portion. The heel holder includes a heel engaging sole-holder portion and a treadnose portion which may be engaged by the boot when in an open position to press the heel holder downwardly by rotation on its pivot to a closed position. A bolt pivot is carried on the heel holder at the lower end on the end opposite the nose and it rides in a guideway of a rotatable disc which is mounted on the upstanding portion for rotation thereon.

Abstract: A safety ski binding comprises a stirrup mounted to a ski or a sole-plate. Articulated to the stirrup is a toggle mechanism including a spring biased holding member arranged to engage the edge of the sole of a ski boot. The holding member is displaceable in a direction toward the toggle to release the boot upon application of a predetermined minimum separating stress.

Abstract: A ski boot heel binding having a locking means for normally setting a pivotally mounted body to a heel holding position and allowing the body to be displaced to a heel releasing position when the locking means is retracted, is disclosed wherein a pair of upper and lower fulcrum means are provided rearwardly of the front end of an unlocking lever. The front end portion of said lever has the locking means operatively connected thereto, and arranged in such a manner that when the rear end of the lever is depressed downwardly, the lower front end portion of the lever engages with the lower fulcrum means to retract the locking means by operation of the leverage thereon and that when the same rear end of the lever is moved upwardly, the upper front end portion of the lever engages with the upper fulcrum means to retract the locking means by operation of the leverage thereon.

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: A heel retainer for a safety ski-binding comprises a housing for attachment to the ski and a holder for engaging the sole of a ski boot. The sole holder is pivoted to the housing by a shaft displaceable in slots of the housing extending substantially parallel to the ski and is held in a sole-engaging or sole-releasing position by a first spring. A second spring biases the pivot shaft in the slots towards the ski tip. A pivotable entrainment member for the sole holder is engaged by said first spring. The sole holder is suspended from the entrainment member by a pin and slot connection.

Abstract: A pair of front and rear abutment members are supported in longitudinally spaced position upon the mid-portion of a ski for vertical and lateral shifting relative to the ski and the abutment members include downwardly facing partial spherical seating surfaces abutted against upwardly facing seating surfaces on the ski. Coiled spring structure is enclosed within each abutment member and connected between the latter and the ski for yieldingly biasing the abutment members into tight seated engagement with the upwardly facing seating surfaces carried by the ski. A ski boot is provided and includes extending opposite heel and toe sole portions having upwardly and outwardly opening V-shaped notches formed therein and the ski boot is snugly received between the abutment members with the adjacent portions of the partial spherical surfaces of the abutment members seated in the upwardly and outwardly opening V-shaped notches in the extended toe and heel portions of the ski boot sole.

Abstract: In a heel tightener for safety ski-bindings, a pusher member is movable away from the ski along the tension members against the force of at least one spring and a tightening lever is mounted to pivot about a transverse axis, the free end of the lever being engageable in the groove of the heel and pivotable upwardly into a heel releasing position. A counterbearing is provided to limit downward pivoting of the tightening lever into the clamping position. The tightening lever is secured in the clamping position by locking means which are released after movement of the pusher member by a predetermined distance away from the ski. The locking means comprise a lever arm linkage disposed between the pusher member and the tightening lever axially parallel to the latter, and a locking lever for the bell crank lever, which locking lever is pivotably mounted in the pusher member against the action of spring force.

Abstract: A bracket for receiving the toe edge of a ski boot sole is attached to the surface of a ski so as to accommodate both lateral and perpendicular pivoting of the boot relative to the ski surface. A lateral release mechanism is included and a cable or other biasing means maintains pressure against the boot in the direction of the toe bracket. By appropriately positioning a single pin, the lateral pivoting or the perpendicular pivoting can be prevented so as to accommodate either downhill or cross-country skiing.

Abstract: A heel piece of a ski safety binding which automatically opens when an excessive force is exerted on the ski boot. The heel piece includes a pair of arms pivotally connected to a base plate, a frame pivotally connected to a pivot pin extending between the pair of arms, which frame is displaceable along the axis of the ski, a heel holding member provided at the front end of the frame and a lock piece disposed in the frame and being displaceable along the axis of the ski relative to the frame. The lock piece has a cam surface which engages a lock pin provided between the pair of arms in a normal state of use. When a strong upwardly directed force is applied to the heel holding member as in a case of a forward fall of the skier, the frame and lock piece displace rearwardly and thereby brings the lock pin out of engagement with the cam surface of the lock piece, enabling the heel piece to rotate for releasing the heel of the ski boot.

Abstract: A ski boot clamping device comprises a ski clamp mounting plate which has an end with a raised portion forming a hook. The boot clamp has a first portion which is adapted to extend across the ski for engagement with the rear end of the boot and which has a skirt which has an engagement end which is engageable behind the plate raised portion with the hook. The boot clamp also has a second portion which is rotatably mounted in a cylindrical formation on the side of the ski and it is biased by a spring so that when the first portion becomes released from the boot, the first portion is rotated by rotation of the second portion at least over 180.degree. so that it extends downwardly into engagement with the snow so as to hold the ski against movement.

Abstract: A clamp for a safety ski binding has a housing adapted to be secured to a ski and formed with a part-spherical seat. A pin has a ball head in the seat for swiveling of the pin within the seat. An abutment surface on the housing lies in a plane passing substantially through the center of curvature of the seat and a pressure element slidable on the pin has an end face engageable against the surface of the housing. A spring is compressed between the pin and the pressure element so as to hold the two in a normal position from which the pin may be tipped for release of the skiboot. Means is provided for limiting the axial displacement of the ball head in the seat.

Abstract: The safety binding for a ski boot comprises a retaining element for one end of the boot mounted to pivot about links hinged in relation to the ski; a first system of locks consisting of a system of ramps and stops, and a second lock consisting of a second system of ramps and stops which temporarily prevent the retaining element from pivoting, forcing it to move against the action of a resilient element. The second system of locks prevents the binding from releasing itself as a result of an inadvertent impact.

Abstract: The binding comprises two lateral arms; a retaining element; and a guidance system consisting of slopes and stops. The slopes are located on an element which is mobile in relation to the retaining element, in a manner such that, in certain positions of the mobile element, the guidance system is inoperative. The manual ski-removal lever is replaced with an element more easily manipulated by the skier, to enable him to remove the skis more rapidly. The device may also be adapted to certain variant bindings, so that they may open automatically in the absence of the boot.

Abstract: A heel hold-down mechanism for safety ski bindings with a heel hold-down member carrying a spur and adapted to be pivoted up against the elastic detent effect by means of a movable detent member; the spur is thereby pivotally mounted at the heel hold-down member and is provided with a control surface cooperating with the detent member and extending transversely to the direction of movement of the detent member; the control surface is so arranged and constructed that the spur in the normal use position of the heel hold-down member is forced by the spring-loaded detent member in a holding-down sense against the heel hold-down member and after the heel hold-down member exceeds a predetermined upward stroke is so stressed by the detent member that it is pivoted underneath the heel.

Abstract: In a heel-holding device for ski bindings in which a sole depressor equipped with a closing pedal is pivoted to the ski about a horizontal transverse shaft disposed behind the boot and is resiliently pressed onto the upper sole rim by a spring, the force of the spring being transmitted to the sole depressor by an interposed locking member which is pivoted to the ski parallel to the sole depressor, and in which the locking member is deliberately pivotable to a depressor-releasing position by means of a handle so that the sole depressor can assume its open position under the influence of a second spring that is weaker than the first spring, the transverse shaft of the locking member is disposed on the boot side of the transverse shaft of the sole depressor and the locking member is provided with a recess for receiving a latch member of the sole depressor, the recess being formed with a slide track and adjoining catch groove co-operating with the latch member.