Abstract: The invention concerns a device for detachably fastening a ski boot to a ski binding fixable on the ski, the ski boot comprising a hook element extending in its longitudinal direction. In manner known per se the hook element consists of a wire material which is bent several times and of which the cross rod is located at a distance from the front ski boot end, and where legs joining the cross rod are anchored by bent, free wire segments in the front end of the ski boot sole. In the invention, the free wire segments (6,7) of each leg (4,5) of the hook element (2) are additionally bent by an angle (alpha) toward the cross rod (3), whereby improved anchoring of the hook element (2) and improved force spreading between the hook element and the ski boot (1) is achieved. In further essence of the invention, the individual legs (4,5) are divided into at least three wire segments assuming directions deviating from the preceding and/or following wire segments.

Abstract: The invention concerns a ski safety binding with a sole plate pivoting about a rising pin. The sole plate cannot however be lifted off the ski. The sole plate includes at its rear a heel holder and at its front a toe piece. The sole holder is pivotable about a cross rod at the front. The toe piece includes a control member associated with a control cam of a guide plate. When a pre-determined pivot angle of the sole holder relative to the longitudinal ski axis is reached, the control cam allows the sole holder to pivot to allow the release of the ski boot. In the present invention the front of the sole plate is designed to be a bearing which supports at least one cross bolt which supports the sole holder, the control member and a ratchet lever. Further, at the front of the bearing is an attachment which enters a guide groove located in the guide plate and is moveable in longitudinally displaceable manner on a base plate.

Abstract: A gymnastics apparatus having a support rod and a handle bar movable toward and away from one another against the force of a spring. A connecting rod and a pipe is arranged between the support rod and the handle bar, the pipe surrounding the connecting rod and housing the spring. A spring abutment member which opposes the connecting rod can be adjusted in an axial direction in the pipe and can be fixed relative to the pipe. In order to facilitate, in such a gymnastics apparatus, an adjustment to various body sizes, the invention provides that the connecting rod is connected, if desired hingedly, to the support rod and the pipe to the handle bar.

Abstract: The invention concerns a safety ski binding comprising a sole plate supported pivotally on a fixed pivot pin, a toe piece and a heel holder. The sole plate is secured both at the rear and at the front thereof against lifting off the ski. A base plate is provided at the front of the sole plate and functions as a guide for a guide plate moveable in the longitudinal direction of the ski. The sole plate is kept at the rear in the travel position by a spring-loaded locking member which engages a fastener.

Abstract: This safety ski binding includes a base plate adapted to be fastened to an upper side of the ski and supporting a vertical pivot. A sole plate is pivotably mounted on the vertical pivot and supports at its rear end a heel support having a sole support which is acted upon by a locking spring. The heel support includes a holding jaw at its front end. The sole plate is pushed by the locking spring in the direction of its central position.An additional release of the ski boot is provided by movement of the heel support relative to the sole plate, as in the case of a pure horizontal load. A heel support has a bearing block which is pivotable with its base about a vertical axial member. The vertical axial member of the bearing block is fastened to the sole plate. A further roller is allocated to the bearing block which is pressed by an additional spring against a cam disposed at the base plate.

Abstract: A screw attachment mechanism of a ski binding which is adapted to be mounted on a ski. The attachment mechanism includes a forward base plate having at least two base plate bores extending therethrough and guide rails mounted on the base plate. A pedestal frame is mounted on the guide rails and includes at least two bores aligned with the base plate bores. Screws are individually disposed within each of the aligned bores and an engagement mechanism is provided for securely retaining the screws within corresponding base plate and pedestal bores.

Abstract: A safety ski binding having a sole plate which is pivotally supported on a ski-fixed pivot pin in a horizontal plane, however, is secured against lifting off from the ski. The sole plate has a front jaw at its front end and a heel holder provided with a housing at its rear end. The heel holder has a sole holder which is pivotal upwardly about a transversely extending axle on the housing against the force of a pressure spring. The heel holder also carries a roller which is loaded by at least one further pressure spring on a control lever, with which roller is associated a cam surface arranged on a ski-fixed member. The pressure springs for controlling the vertical release and the ones for controlling the lateral release can thereby either be arranged among one another or nested into one another.

Abstract: The invention relates to a safety ski binding and in particular, a heel support having a base plate supporting a vertical pivot, the heel support being fastened to the upper side of the ski. The heel support includes a sole support being upwardly pivotable against detachable locking and a support plate for the heel of the ski boot, which can be pivoted about a vertical axle. The support plate is pushed by a spring into its central position along the ski. To shift in such a ski binding the axis of rotation for the ski boot is essentially an extension of the shinbone of the skier. Thus, the pivot is located between the front jaw and the heel support and the support plate is pivotally mounted at the pivot. The heel support is opened in a horizontal release process by a control mechanism formed by a roller and a cam. The roller is mounted in the base plate by means of its axle extending in the longitudinal direction of the ski.

Abstract: A safety ski binding having a sole plate which is pivotally supported on a ski-fixed pivot pin in a horizontal plane, however, is secured against lifting off from the ski. The sole plate has a front jaw at its front end and a heel holder provided with a housing at its rear end. The heel holder has a sole holder which is pivotal upwardly about a transversely extending axle on the housing against the force of a pressure spring. The heel holder also carries a roller which is loaded by at least one further pressure spring on a control lever, with which roller is associated a cam surface arranged on a ski-fixed member. The pressure springs for controlling the vertical release and the ones for controlling the lateral release can thereby either be arranged among one another or nested into one another.

Abstract: The safety ski binding comprises a base plate on which a spring housing for a release spring is mounted for displacement transversely on the longitudinal direction of the ski. Mounted in the spring housing are two hinged jaws laterally engaging a ski boot and rotatably supported about vertical axes.For improving the retention of the ski boot and for facilitating the lateral release in the case of a rearward torsion fall, a U-shaped pivot member is mounted on a transverse axial member in the spring housing and supports a further transverse axial member supporting a catch lever subjected to the action of the release spring to be engaged with a nose of a clamp retainer rotatably mounted about another transverse axial member, which suppports a sole clamp.

Abstract: A cross-country ski binding in which the shoe (2) is attached to the ski (7) by means of a device with a binding component (3) which permits the foot to swing laterally about an axis (1) which is diagonal to the forward movement of the ski. The axis of movement runs through a point on the inner side of the ski (4) which is relatively far from the ski point (8) and through a point on the outer side of the ski (5) which is nearer to the ski point (8). Thus the pivoting axis (1) is preferably located beneath the hypothetical axis of rotation (6) of the metatarsophalangeal joints, rising towards the outside by an angle between 5.degree. and 20.degree. from the upper surface of the ski.

Abstract: A safety ski binding including a sole plate pivotally supported on a ski-fixed pivot pin in a horizontal plane, however, is secured against lifting off from the ski. A front jaw is provided on the sole plate at its front end and a heel holder at its rear end. A housing is provided and includes a sole holder pivotally supported for movement about a transversely extending axle against the force of at least one spring and which carries a roller loaded by a further spring on a control lever. The roller is associated with a curved surface mounted on a ski-fixed member and controlling the lateral pivoting of the sole plate, whereby one of the springs is nested coaxially into the other in the housing and the housing is secured on the sole plate extension members.

Abstract: A safety ski binding provided with a sole plate supported pivotally on a ski-fixed pivot, however, is secured against lifting off from the ski carries at its rear end a heel holder and at its front end a front jaw. The front jaw is pivotal about a transverse axle and carries a control element extending in the longitudinal direction of the ski in the skiing position. On the front end of the control element is supported rotatably a roller, with which is associated a cam secured on the ski, which cam, upon reaching a predetermined angle of traverse of the sole plate relative to the longitudinal direction of the ski, permits a pivoting of the front jaw in the sense of a release of the ski shoe. In order to permit in such a ski binding a storing of the cam protected against dirt, the invention provides that the cam (2f) for the roller (15) of the control element (14) is stored in a housing (2,7) which is open only toward the tail end of the ski and serves to support the front jaw (10,17).

Abstract: A cross country ski has a bending resistance which is changeable with the help of at least one bending beam, the beam extending longitudinally of the ski and being arranged in the center of the ski. The bending beam is arranged loosely inside of the ski, symmetrically in relationship to a vertical longitudinal center plane of the ski, and is supported at its two ends on support surfaces of the body of the ski which extend approximately parallel to the running surface. In a first preferred embodiment, pressure can be applied to the beam on a side thereof which does not face the support surfaces by a pressure element which is supported on the body of the ski in the region of the upper side thereof. In a second preferred embodiment, the beam has on its side which does not face the support surfaces a pressure-transmitting member, to which a pressure toward the beam can be applied by a control mechanism.

Abstract: A device for detecting the forces acting onto a ski binding or a shoe held in such a binding comprising at least one feeler emitting electrical signals in dependency from the occurring forces and an evaluating circuit processing the signals. In order to be able to calculate the state of fatigue of the skier and, if necessary, the condition of the binding, it is provided that an integrator circuit constructed as a counter is connected after the evaluating circuit, which integrator circuit is connected to an indicating device and which can be reset merely by means of a manually operable switching device. The counter can thereby count either signals of the evaluating circuit corresponding with predetermined impacts, or digital signals corresponding with impacts having an energy content, or signals which correspond with those impacts, the rising and dropping speed of which exceed a limit value.

Abstract: An apparatus for facilitating optimum adjustment of a cross-country ski, the bending resistance and/or arch of which can be adjusted, includes a sensor connected to a control circuit, and the control circuit is in turn connected to either a drive mechanism which automatically controls the adjustment of the ski or to an indicating device which visually indicates the necessary adjustment to be made manually. The control circuit monitors ski performance at a given adjustment for a predetermined interval, thereafter determines an appropriate adjustment, then monitors ski performance at the new adjustment for the predetermined interval, and so forth. A gearing mechanism powered manually or by an electric motor can be provided to effect the automatic adjustment of the ski in response to an output of the control circuit.

Abstract: A ski binding includes a base plate adapted to be secured to a ski, a cover plate supported on the base plate for pivotal movement about a vertical axis, and an adjustable release arrangement for yieldably resisting pivotal movement of the cover plate in either direction away from an initial position. The release arrangement can be adjusted from a side of the binding. Front and rear holding mechanisms are provided on the cover plate and releasaly hold a ski shoe on the cover plate, the front holding mechanism including a pivotally supported holding jaw which is controlled by the adjustable release arrangement, and the rear holding mechanism being adapted to release only in response to an upward force component.

Abstract: An adjusting device having a carriage supporting a binding part, and a base plate supported on the ski and serves to guide the carriage for movement relative to the ski, whereby one of the carriage and the base plate is equipped with serrations which extend in a longitudinal direction of a ski, with which is associated a locking member which is guided on the other of the carriage and the base plate for movement transversely with respect to the longitudinal direction of the ski and has locking teeth thereon. In order to create in this adjusting device a positive locking of the teeth of the locking member with respect to the serrations, the invention provides that one end of an intermediate member be hinged to a locking member or to a swivel part which is hingedly connected to the locking member. The intermediate member is pivotal between first and second positions located on opposite side of a dead-center position thereof.

Abstract: A device for effecting longitudinal adjustment of ski binding parts includes a guide rail which is adapted to be mounted on a ski and has a longitudinally extending serrated edge, a guide plate slidably supported on the guide rail for longitudinal movement, a locking member having teeth thereon and supported on the guide plate for movement between first and second positions in which the teeth respectively engage and are free of engagement with the serrated edge, a resilient arrangement which yieldably urges the locking member toward its first position, and an arrangement cooperable with the locking member for releasably holding it in its second position.

Abstract: A ski binding having a hook element arranged at the tip of a ski shoe, a bearing block secured to the ski and having a receiving part for the hook element, and a locking element supported on the bearing block and having at least one locking protuberance. The locking element locks the hook element against movement on the receiving part by means of a spring force. The hook element has a wall-like member or hook bar which extends in the skiing position at least approximately vertically upwardly relative to the upper side of the ski. The receiving part has guide bars thereon which extend approximately perpendicularly to the upper side of the ski and which are designed to receive the hook bar therein.