EP1261402A1

EP1261402A1 - Ski binding

Info

Publication number: EP1261402A1
Application number: EP01914072A
Authority: EP
Inventors: Tilo Riedel; Bernt-Otto Hauglin
Original assignee: Rottefella AS
Current assignee: Rottefella AS
Priority date: 2000-03-07
Filing date: 2001-03-07
Publication date: 2002-12-04
Also published as: WO2001066204A1; US20030155742A1; NO20024278D0; NO20024278L; US7264263B2

Abstract

The invention relates to a ski binding, in particular, a touring, telemark or cross-country binding, comprising a front fixing, for the front end of the sole; a rear fixing, to engage with the front part of the boot sole, or with the heel of a skiboot and a tensioning device which connects both front and rear fixings. Said tensioning device can lock the front and rear fixings to the skiboot and, in particular, in the locked state, allows the heel of the skiboot to be lifted relative to the ski. At least one release mechanism is provided, for releasing the lock of the tensioning device between ski binding and the skiboot, due to the effect of a torque value above a predetermined limiting value, about a vertical axis on the boot or ski, or by manual activation of an essentially positive-fit locking element.

Description

ski binding

description

The invention relates to a ski binding according to the preamble of claim 1.

In contrast to downhill bindings, a decisive functional feature of touring, telemark or cross-country bindings is that the associated ski boot is held on the ski by a retaining element at the front sole end, but the rear end of the sole (the heel) must not be held on the ski , but must be raised against this. The fulfillment of this elementary requirement, which derives from the movement sequences during cross-country skiing or touring skiing or downhill skiing in the telemark style, has as a rule been accompanied by losses in the guiding properties of the binding in earlier binding constructions.

However, cross-country, touring and telemark bindings have also been known for years and are in practical use, in which good lateral guidance is achieved, at least in the position of the ski boot attached to the binding, via corresponding engagement sections on the binding and on the ski shoe adapted to it.

A cross-country safety ski binding is known from DE 34 12 073 C2, in which a flexible plate fastened to the ski with a rear pivot bearing guides the ski boot relatively well laterally, even when raised, with respect to the ski in addition, triggering of the holder when the ski boot is subjected to torsional stress is generally permitted. Additional stabilizing elements are provided for the sliding phase with the ski boot placed on the ski.

A ski binding according to the preamble of claim 1 is known from EP 0 806 977 B1. In an advantageous embodiment, this ski binding has a tensioning element which engages on the underside of the front sole of the shoe and which is designed in particular as a resiliently flexible part in the form of a spring band or leaf.

This ski binding offers good guidance and power transmission properties, but there is still room for improvement here, in particular with regard to the safety properties and also simple and low-effort actuation.

The invention is therefore based on the object of further developing a generic ski binding with the aim of creating an easy-to-operate safety ski binding for cross-country skiing, goal skiing or downhill skiing in the Telemark style.

This object is achieved according to at least one of its basic aspects by a ski binding with the features of claim 1.

The invention includes the basic idea of providing on the tensioning device of the known binding (or in the area of the front and / or rear holding element) an unlocking device which responds in particular to pressure or triggers a torsion load on the ski shoe and releases the ski shoe from the Binding causes.

With the provision of an actuating element which responds to pressure (preferably from above) and which unlocks a form-fitting conclusive locking causes, instead of the known over-the-center locking and tensioning device, the operation of the binding is significantly simplified and thereby a first significant benefit in use. With the provision of an unlocking device that triggers when torsional stress occurs on the ski or ski boot, the binding is given characteristics of a genuine safety binding. A further substantial increase in utility value is hereby achieved.

In a preferred embodiment, the ski binding according to the invention comprises both a first unlocking device, which can be triggered when a lateral or torsional force acts on the ski or the ski boot, and a second unlocking device with an actuating element that responds to pressure directed essentially perpendicular to the ski surface , A ski binding with this combination of functions represents a qualitatively new type of binding for touring or telemark skiing or cross-country skiing.

In a further preferred embodiment, the first and second unlocking devices jointly have a first locking element attached to the tensioning device of the binding, and in particular in the region of the front holding element a second locking element designed to engage with the first locking element is provided. The first and second locking elements can be disengaged or brought into engagement with one another by rotation about an axis of rotation perpendicular to the ski surface.

In a special embodiment, the first locking element is a locking hook that can be rotated with respect to the axis of rotation, and the second locking element has a nose or groove that can be pivoted about a first pivot axis that is parallel to the ski surface and perpendicular to the longitudinal axis of the ski is fixed in its lateral position relative to the ski. This nose can be brought out of engagement or into engagement with the first locking element by pivoting about the pivot axis, as a result of which an exit from or an entry into the binding is made possible. Due to the rotation between the first and second locking element and the change in the engagement state caused thereby, the binding is released under torsional stress or is brought back into the position of use. The actuating element is expediently connected to the second locking element, so that the engagement between the first and second locking elements is released by essentially vertical pressure on the actuating element and the exit from the binding is made possible.

In the area of the front or rear holding element or also between the two, a spring device is provided for pretensioning the rear holding element in the locked position with the ski boot - in a further preferred embodiment specifically with its front sole. Specifically, a front spring device for biasing the first locking element (locking hook) into the engagement position with the second locking element (the nose) is provided between the front and rear holding element, and a rear spring device for biasing the rear holding element into the engaged position is provided on the rear holding element with the front sole of the shoe (or the rear edge of the heel). The two spring devices cooperate when locking and unlocking the binding, and the spring force of the rear spring device is greater than that of the front spring device. As a result, releasing the engagement state between the first and second locking elements causes the tensioning device with the rear holding element mounted therein to be returned under the action of the rear spring device and against the (weaker) action of the front spring device. As a result, the interlock between the rear holding element and the corresponding engagement portion of the ski boot sole released ("Releese"). However, as soon as the ski boot has left the binding, the rear spring device relaxes, and the front spring device can then take effect and return the engagement element to the longitudinal position, which enables renewed engagement with the second locking element. The binding is then back in the starting position ("step-in").

The unlocking device for releasing the binding in the event of a lateral or twisting force application has a resetting element which counteracts each movement of the ski boot about the axis of rotation. This is preferably a trigger spring device that is adjustable to adjust the triggering force. This includes in particular a helical spring which can be changed in its spring constant by being compressed by means of an adjusting screw.

The rear holding element can be actuated in an independently protective formation, which enables easier entry, by means of a projection on the front of the ski shoe that corresponds to the holding element and corresponds to the holding element when the ski shoe is put on. For this purpose, it has a second pivot axis lying essentially parallel to the ski surface and perpendicular to the longitudinal axis of the ski. In particular, the rear holding element has a nose pointing towards the ski tip, which is pushed down when the ski shoe is put on through the underside of the projection on the front of the ski shoe, and it is connected in a lever-like manner to the rear spring device in such a way that the actuation of the holding element by putting it on of the ski boot on the nose against the spring preload generated by the rear spring device. A torsion spring on the rear holding element prestresses it into an open-pivot position, and an additional spring-loaded locking catch device on the lever-like connection ensures that the holding element, when it is locked with the projection on the front of the ski shoe, does not open into the opening position. Can turn the swivel position. This in turn ensures that the heel of the ski boot can be lifted off the ski surface without releasing the lock.

In a preferred embodiment, at least the front or the rear holding element have holding jaws which grip around the front sole end of the ski shoe or the projection on the front of the ski shoe or the rear edge of the heel.

In a preferred embodiment, the tensioning device comprises a flat connection part which is flexible in a longitudinal sectional plane of the ski binding and via which the front and rear holding parts are connected to one another at least indirectly and essentially in a rotationally fixed manner. In alternative designs, the tensioning device comprises a plurality of rigid connecting elements which are connected to one another via joints or else a tensioning cable.

When using a flat connecting part, it is expediently fastened to the front and rear spring device in such a way that it connects the front and rear holding element to one another in a resilient manner.

The flat connecting part is guided laterally with respect to the ski, in particular through the side walls of a binding housing fastened to the ski, which encompass the side edges of the connecting part. As an alternative or in addition, the guidance can take place by means of longitudinal ribs or grooves of the binding housing, which interact with corresponding longitudinal grooves or ribs on the connecting part (which act as a “negative shape”). A ski brake is advantageously also integrated into the proposed ski binding, in order to provide it with essentially the full functional properties of a downhill binding in the event of the ski becoming detached on a descent in the Telemark style. The ski brake is in particular attached to the surface of the flat connection part mentioned in such a way that when the ski boot placed on the connection part is lifted up with the connection part and the connection part, it is raised and remains inactive. In a version in which the flexible connecting plate does not exist in this form, other suitable means must be taken to ensure that the ski brake remains in its inactive position when the ski boot heel is raised.

In order to compensate for the length change associated with the flexion of the tensioning device - in particular the connecting part - when lifting and lowering the heel of the shoe, spring means are preferably provided on the rear holding element. In a particularly advantageous embodiment, this function is performed by the above-mentioned rear spring device, which also provides the spring preload for locking the rear holding element.

Furthermore, on the rear holding element - in an alternative embodiment also in the area of the front holding element - adjusting means for adjusting the length of the binding are provided, which expediently comprise a sliding piece arranged in a longitudinal guide and lockable there (for example with a locking screw).

In a preferred embodiment, the front spring device has a helical spring with a long stroke, which is supported at one end against a binding mounting plate and is connected at the other end to the (second) unlocking device and is used as a compression spring, and which is assigned an internal guide rod as a guide element. The rear spring device preferably comprises two helical springs arranged symmetrically to the longitudinal axis of the binding and each guided in a guide channel, which also act as compression springs.

In the area of the first pivot axis, in particular a torsion spring element which resets the actuating element and / or a lever device with a pivot lever is provided which - in particular through the torsion spring element - is in an over-dead center closed position and is "folded" into the open position by pressure on a suitably arranged and shaped actuating section. can be.

At least in the area of the front holding element or the tensioning device, a support plate is provided for the front of the ski shoe, which is expediently roughly contoured to prevent functional impairment due to accumulated snow on the upper side. When carrying out the invention with a rear holding element engaging on the front of the ski shoe, a support element for the shoe heel is also provided behind it, which is also expediently roughly contoured.

Advantages and expediencies of the invention also emerge from the subclaims and the following description of preferred exemplary embodiments with reference to the figures. Of these show:

1A to 1F different views or sectional and partial sectional views of a ski binding according to a first embodiment of the invention, 2A to 2D are sketch-like schematic representations for explaining the triggering process of ski bindings in two further embodiments,

3A and 3B are partial sectional views of a further, slightly modified embodiment compared to the embodiment according to FIGS. 1A to 1F,

4A to 4C sketch-like partial sectional representations of a ski binding according to a further embodiment,

5A and 5B are partial sectional views of a ski binding in a further embodiment, in which the locking takes place with the heel of the ski boot,

6A and 6B a partial sectional view (longitudinal section) and a schematic diagram (top view) of a ski binding according to a further embodiment,

7A and 7B are side views of another ski binding modified in comparison to the embodiment according to FIGS. 6A and 6B in two different positions of use,

8A to 8F different sectional views, views or partial sectional views to explain the structure and function of a ski binding according to a further embodiment, 9A to 9D different representations of a ski binding according to a further preferred embodiment,

10A to 10D different representations of a ski binding according to a further advantageous embodiment, namely a longitudinal sectional representation, a top view and two detailed views, and

Fig. 11 is a detailed sketch of the rear holding element of another embodiment in the manner of a longitudinal section.

FIGS. 1A to 1F show a ski binding 100 suitable as a touring, telemark or cross-country binding in accordance with a first embodiment of the invention in various views and sectional representations. The state mounted on a ski (not shown) is shown, the left side of the ski tip and the right side facing the end of the ski, as in all the other figures. 1A shows a side view, FIG. 1B shows a top view, FIG. 1C shows a longitudinal sectional view, FIG. 1D shows a sketch-like illustration in top view and partial sectional view, FIG. 1E shows a longitudinal sectional view in a step-out position, and FIG. 1F shows a longitudinal sectional view in FIG locked condition with the heel of the ski boot raised.

In some figures, the ski surface is shown as a solid line 101 and the sole contour of a ski boot 103 adapted to the ski binding 100 as a dashed line. As essential functional units, the ski binding 100 comprises a mounting plate 105, a front holding element 107 with an associated actuating element 109, a rear holding element 111 and a front holding element 107 with the rear holding element 111 connecting tensioning device 113 with a covering plate 115 covering this, and finally a heel support element 117 and a ski brake 119. The structure and functioning of the heel support element 117 and the ski brake 119 are in connection with the explanation of the invention of minor importance and are therefore not described in more detail below, and the description focuses on the front and rear holding elements 107, 111, the actuating element 109 and the tensioning device 113 and their interaction.

The front holding element 107 has a plastic base body (not designated separately) which runs out towards the rear into a holding jaw 107, which is designed for gripping over and reaching around a front sole end 103a of the ski boot 103. In the lower part of its front facing the ski tip, the front holding element 107 has a flat concave pressure and sliding surface 107b which faces a contact surface and a correspondingly flat pressure and sliding surface 109a of the actuating element 109 and is in contact therewith. The base body of the front holding element 107 rests - as can be seen in the sectional representations - on a holding element base 121 and can be pivoted relative to it (in a manner generally known from downhill ski bindings) in the event of a lateral force application. A threshold value setting and restoring effect with respect to this pivoting movement is implemented by a release spring device 123 accommodated in the holding element base 121.

The trigger-spring device 123 includes (as best seen in Fig. 1D) as essential components, a coil spring 123a, two helical spring bracket 123b, a one ^¬ screw 123c with pressure plate 123d, and an engaging onto the outer surface of the coil spring 123a sliding pin 123e , (The release spring devices in the described further embodiments have basically the same structure, so that they are not described again in detail in these further embodiments.

The rear holding element 111 has a holding jaw purple, the shape of which is adapted to that of a projection 103b on the ski boot ^" front sole of the ski shoe 103, so that the rear holding element engages over and around this extension when the ski shoe is in the fitted state. Inside the rear holding element 111 are accommodated in two corresponding guides, two helical springs 111b held as compression springs, one end of which is supported on an abutment surface 111c of the rear holding element and the other end of which is supported on an abutment surface of the tensioning device 113 (described in more detail below) (not specifically identified)

The lower part of the rear holding element 111 carries an elongated hole 11, in which a connecting pin 125 slides for connection to the tensioning device.

The tensioning device 113 essentially consists of a flexurally elastic connecting plate, at the rear end of which an upturn 113a is formed, which forms the abovementioned second abutment surface for the two coil springs 111b in the rear holding element 111. In the rear section, the connecting plate 113 passes through a corresponding one

(Not separately designated) slot-shaped recess, the lower part of the rear holding element 111 such that it is freely displaceable relative to the connecting plate under the action of the coil springs 111b. At the front end of the connecting plate 113, a rotation axis 113b is mounted in a corresponding eye, which in turn holds the one end of two swivel levers 127 in a rotatable manner. The respective other ends are held by a further pivot axis 109b, which in turn is rotatably supported in the actuating element 109. The actuating element itself can be pivoted about an actuating element pivot axis 109c, which in turn is held in the mounting plate 105. The actuating element 109 has two recesses 109d, 109e for guiding a pressure which is essentially exerted from above, in particular by means of a ski pole, in order to produce a pivoting movement of the actuating element 109 about the pivot axis 109c.

As can best be seen from a comparison of the figures IC or IF with 1E, the insertion of a ski pole 129 into the

Indentation 109e of the actuating element 109 and application of an appropriate pressure result in the end of the actuating element 109 facing the front holding element 107 being swiveled down while the pressure and sliding surfaces 107b and 109a slide along one another. This pivoting movement causes the pivoting lever 127 to pivot from an approximately horizontal to an approximately vertical position, i. H. a dead center movement.

This movement unlocks the tensioning device (connecting plate) 113 in the area of the actuating element, and the connecting plate 113 slides under the action of the coil springs 111b to a stop determined by the position of the pivoting lever 127 with respect to the actuating element 109. It takes the rear holding element 111 with it, which causes it to be unlocked from the projection 103b in the front of the ski boot (FIG. 1E). In contrast, the locked state of the connecting plate 113 with the actuating element 109 is shown in FIGS. 1A to IC, in which the rear holding element 111 by means of it

Holding jaw purple is locked with the projection 103b of the ski boot front sole. Starting from the unlocked state shown in FIG. 1E, this state is achieved by exerting pressure on the actuating element in the region of the front recess 109d, whereupon the actuating element from the region shown in FIG. 1E swings back into the position shown in FIG. IC and swings the connecting plate 113 forward by means of the swivel lever 127.

In Fig. IF it is sketched that the compression spring 111b in the rear holding element 111 acts as a flexion compensation when the ski boot 103 is lifted and the associated flexing of the connecting plate 113 (and the support plate 115) in the locked state of the binding.

FIGS. 2A to 2D, which show a sketch of a ski binding that is slightly modified compared to the embodiment according to FIGS. 1A to IF, show the principle of unlocking the binding when subjected to a lateral force or torsional stress. The ski binding designated here by reference numeral 200 again comprises a mounting plate 205, a front holding element 207, an actuating element 209, a rear holding element 211 and a tensioning device (flexible connecting plate) 213. With regard to the more precise construction of these components, reference is made to FIGS. 1A to IF ,

Here too, a release spring device 223 is provided, which is constructed analogously to the spring device 123 in FIGS. 1A to IF and is not further explained here with regard to its construction. The individual figures in FIGS. 2A to 2D are

The state of tension of the spring device 223 can easily be seen in the individual movement phases or positions of the front holding element 207. 2A shows an intermediate position when the binding is released to the right and FIG. 2D shows the state when the release has occurred to the right, while FIG. 2C shows the state when a slight lateral force is exerted or in the initial phase of a release process and FIG. 2B shows the state of a trip to the left. It can be clearly seen that the sliding pin 223e of the spring device 223 acts as a sliding center of rotation during the triggering processes. 2C and 2D, a partial section shows an elastomer block 231 which is worked out in a W-shape on its front surface and which interacts with an abutment plate 233 which is rigidly attached to the holding element base (not shown here). It can be seen that the elastomer block 231 rotates together with the front holding element 207 during a triggering process and, when the release position is reached, the abutment plate 233 slides into one of the two legs of the "W" and then the elastomer block itself and with it the front holding element 207 initially holds elastically in the release position. Swiveling back into the starting position is possible while overcoming the elastic counterforce exerted by the elastomer block.

In Fig. 2A it can be seen that the rotational movement of the tensioning device (connecting plate) 213, which coincides with the movement of the ski boot relative to the ski, has its axis of rotation in the connecting pin 225, which connects the rear holding element 211 to the connecting plate 213 in a longitudinally displaceable and rotatable manner.

3A and 3B show a ski binding 300 modified in comparison to the embodiment according to FIGS. 1A to IF in that it has an articulated connecting plate 313 instead of the flexible connecting plate. In FIG. 3A the binding is shown in the state lying on the ski with the heel of the ski boot lowered, while in FIG. 3B the flexion position is shown with the heel of the ski boot raised. The tensioning device or connecting plate 313 here consists of three parts 313a, 313b and 313c, which are pivotally connected to one another via axis-hook connections (not designated separately). Otherwise, the structure is the same as in the first embodiment, so that reference numerals based on these have been chosen and a description can be omitted here. 4A to 4C, a ski binding 400 according to a further embodiment of the invention is sketched in schematic diagrams in the form of vertical (FIGS. 4A and 4B) or horizontal partial sectional representations. This ski binding 400 is also adapted to a - with here designated with the number 403 - ski boot with 'locking on an extension of the ski boot front sole. The design of the front holding element 407, including the release spring device 423 and the support plate 415 corresponds to the previously described embodiments.

Here too, the rear holding element 411 is assigned a compression spring mechanism with two helical springs 411b as central active elements, which, in addition to flexion compensation, causes a simultaneous change in the longitudinal position and angular position of the rear holding element via a pivoting lever mechanism (not shown in more detail in FIGS. 4A to 4C). In this way, either a locking of the holding element behind the projection 403b of the ski boot front sole (FIG. 4A) or an unlocking relative to the same (FIG. 4B) is effected.

The actuating element 409 also has a pressure and sliding surface 409a here, which can slide on a corresponding concave (circular-cylindrical) shaped counter surface of the front holding element 407, and is about an actuating element pivot axis 409c lying parallel to the ski surface and perpendicular to the longitudinal axis of the ski 4A to the position shown in FIG. 4B and pivotable back. The pivoting downward into the unlocking position is again effected, for example, by placing a ski pole 429 and exerting moderate pressure in a (here only) depression 409d. The pivot axis 409c is assigned a torsion spring 409f which counteracts this pivoting movement and strives to turn the actuating element back into the position shown in FIG. 4A. The ski binding 400 comprises a tensioning device or connecting plate 413, which has abutment surfaces 413a for the coil springs 411b in the rear holding element 411 at the rear end and a pivot axis 413b received in a corresponding eye at the front end. Due to their eccentric arrangement with respect to the actuating element pivot axis 409c, a longitudinal displacement of the connecting plate 413 is achieved when the actuating element 409 is pivoted. This causes the above-mentioned synchronous displacement and pivoting of the rear holding element 411. The pivoting mechanism of the rear holding element 411 has suitable locking means which make it self-locking after it has entered the binding and the associated ski shoe sole rests on the upper side of the holding element. This ensures that the ski boot can be lifted while running or descending in Telemark style without the rear holding element loosening again (cf. also the description of FIGS. 8A to 8F below).

FIGS. 5A and 5B show in schematic sketches a further ski binding 500 which, in contrast to the above-described embodiments, does not act on the front of the ski boot, but behind the heel 503c of a ski boot 503.

The front actuating element 507 here has an upper holding jaw 507a and a lower holding jaw 507a 'lying at the level of the support plate 505 and encompassing it in a U-shape in the front region. The front holding element 507 has a release spring device ^" 523 similar to the above-described embodiments, but here is rotated by 90 ° in the lower section of the one-piece holding element. Position and shape of a rear holding element 511 with two holding jaws 511a and 511a" are here modified to the modified principle of locking with the ski boot heel fits. Also assigned to the holding element 511 is a spring-loaded displacement mechanism with two compression spring elements 511b, which are supported on the one hand on an abutment surface of the holding element and on the other hand on an abutment surface of the tensioning device (both of which are not specifically identified here). Here, too, a pin slot guide 525 / 511e is provided for the displaceable connection of the rear holding element to the tensioning device 513.

The binding 500 has a multi-part tensioning device 513, which essentially has a front connecting plate 513.1 with a hook-shaped upstand 513.1a at the foremost end, the support plate 515 which is screwed to this screwed support plate by means of two screws 513.2, and a rear plate which is in turn connected to this by means of the pin 525 Connection plate 513.3 includes. At the very rear end of the latter, L-shaped bevels 513.3a are provided, against which the coil springs 511b are supported.

The actuating element 509 is only roughly sketched in FIGS. 5A and 5B and accordingly comprises an actuating element pivot axis 509c mounted in the mounting plate 505 in a first part 509.1 and a second pivot axis 509b in a second part 509.2. The actuating element 509 in turn has a recess 509d on its upper side for inserting the tip of a ski pole (not shown). In this embodiment, too, a pivoting of the actuating element about its pivot axis 509c is achieved by appropriate pressure, as a result of which the front hook-shaped upstand 513.1a is released and the tensioning device 513 is pressed backward by the force of the compression springs 511b together with the rear holding element 511. This releases the heel 503c and the binding is unlocked from the ski boot.

A pin 535 held in the mounting plate 505 is provided in the central region of the connecting device 513 a slot guide 513.1b of the front connecting plate 513.1 runs and serves as a pivot bearing for pivoting the tensioning device (together with the ski boot in the event of a torsional force attack). As shown in dashed lines in Fig. 5B, with such a pivoting movement, the hook-shaped upstand 513.1a at the front end of the front connecting plate 513.1 rotates about the pin 535 opposite the second part 509.2 of the actuating element 509, so that the latter no longer engages stands the hook 513.1a and the tensioning device 513 can be pushed backwards by the compression springs 511b. In this case, too, the locking is released, which implements the function of a safety release when a lateral force or torsional stress is applied.

FIGS. 6A and 6B show a touring, telemark or cross-country binding 600 according to a further embodiment of the invention.

The structure of the actuating element 609 and its connection to the tensioning device 613 is similar to the embodiments according to F g. 1A to IF and 4A to 4C. Two depressions 609d, 609e are provided on the upper side of the actuating element, an actuating element pivot axis 609c held in lateral upturns of the mounting plate 605 is provided, and the connection to the connecting device is made via a pivot axis arranged in a corresponding eye at the front end thereof 609b.

The connection device 613 here comprises a connection or. Rotating plate 613.1, two levers 613.3 which produce the connection between the actuating elements 609 and the support plate 615 (via a pivot axis 613.2 provided there) and the support plate 615 itself. In this embodiment, the connecting device 613 has a trigger at its rear end. Associated spring device 623, which was provided in the above-described embodiments in the region of the respective front holding element. This is fixedly mounted on the mounting plate 605, and the rear end of the rotary plate 613.1 engages on the circumference of the coil spring 623a. This sets the triggering properties.

In the manner already described in other embodiments, the rear actuating element 611 has a holding jaw 611a and a spring device with two compression springs 611b for realizing flexion compensation and tensioning the binding around a projection 603b at the rear end of the front sole of the ski boot 603. In this regard, reference can be made to the above description parts. In the central region of the binding - similar to the embodiment according to FIGS. 5A and 5B - an axis of rotation 635 is provided, about which the entire connecting device 613 can be rotated.

The front holding element 607 here has a narrow contact area or a nose 607c with the rear edge of the actuating element 609. When the connecting device (including the rear holding element 611) rotates about the axis of rotation 635, the nose 607c disengages from the actuating element, and the connecting device 613 - including the actuating element, which is attached to the

The sliding surface 607b of the front holding element 607 slides along - pulled backwards by the force of the springs 611b. This triggers the safety release of the binding.

The ski binding 700 shown in FIGS. 7A and 7B as a further embodiment essentially corresponds to the embodiment according to FIGS. 6A and 6B and in particular has the same triggering functions. In addition, the lateral guidance of the actuating element 709 via its pivot axis 709c in elongated hole guides 705a in lateral upstands 705b is clearly visible here Mounting plate 705 (which may also be similar in the embodiment described above, but is not shown there).

The release spring device 723 in this embodiment has a separate plastic housing 723f, in which it is arranged in a lying manner, similar to the embodiment according to FIGS. 5A and 5B, but not in the area of the front holding element, in such a way that the longitudinal axis of the sliding pin 723e is parallel to the ski surface.

The main difference to the embodiment according to FIGS. 6A and 6B is, however, that a modified clamping device 713 in addition to a Titanal rotating plate 713.1, a first pivot axis 713.2 and a front connecting plate 713.3 connecting this with a pivot axis 709b on the actuating element 709, a middle connecting plate 713.4, which in addition to the first pivot axis 713.2 at the front end, receives a second pivot axis 713.5 at its rear end, and includes a rear connecting plate 713.6 connected to this pivot axis. While the central connecting plate 713.4 is formed integrally with a central section 715b of a support plate 715, its front section 715a is integrally formed with the front holding element 707 and its rear section 715c is integrally formed with the rear holding element 711, which is penetrated by the rear connecting plate 713.6 of the tensioning device becomes. As can be seen in FIG. 7B, the tensioning device 713 and the individual sections of the support plate 715 move with this binding when the ski boot is lifted, similarly to the embodiment according to FIGS. 3A and 3B - with the difference that there is a continuous support plate was provided.

Another embodiment of the ski binding 800 according to the invention is shown in different views in FIGS. 8A to 8F or sectional views outlined. This binding also comprises a mounting plate 805, a front holding element 807 with an associated actuating element 809, a rear holding element 811 and a tensioning device 813 and a support plate 815. Furthermore, a ski brake 819 is provided, which, however, because of its lesser relevance in connection with the invention, is not described below is further described. Finally, a release spring device 823 is also provided here.

With regard to the structure of the front holding element 807 and the actuating element 809 and its interaction with the tensioning device 813, the present ski binding 800 is similar to the binding 500 shown in FIGS. 5A and 5B and described above, so that a detailed description is repeated here can be dispensed with. This similarity applies in particular to the provision of a connecting plate 813.1, which ends in the area of the actuating element 809 in the front in a narrow hook 813.1a. However, this is not a turntable at the same time, but is connected to an additional turntable 813.7, which in turn is in engagement with the sliding pin 823e of the release spring device 823 (here shifted rearward into the vicinity of the rear holding element 811).

The support plate 815 is screwed in the area of the front holding element 807 to the connecting plate 813.1 designed as a sliding plate. With regard to the mode of operation when exiting under manual actuation and when triggering safety under the action of a torsional force, the connecting device, the actuating element and the front holding element largely correspond to the arrangement described above in accordance with FIGS. 5A and 5B. It should also be noted that a torsion spring 809f (not shown in FIGS. 5A and 5B) is provided for pretensioning and returning the actuating element 809 to the starting position shown in FIG. 8A. Of particular note in the case of the binding 800 is the design of the rear holding element 811. As in the previously described designs, this comprises a coil spring arrangement for pretensioning. However, this is actuated here via the support plate 815 protruding into the area of the rear holding element, which has an elongated hole 815a in this area, in which a connecting pin 825 represents a slidable connection with the upper side of a holding element base 811.1.

A locking lever 811.4, which carries a holding jaw 811.4a and a central nose 811.4b, can be pivoted thereon about a pivot axis 811.2, which is received in an elongated hole 811.3 of the holding element base 811.1, transversely to the longitudinal axis of the ski. With respect to the pivot axis 811.2, opposite the holding jaws 811.4a and the nose 811.4b, the locking lever 811.4 has a pawl section 811.4c which interacts with a nose 811.1a provided on the rear edge of the holding element base 811.1a. Arranged around the pivot axis 811.2 is a torsion spring element 811.5, which prestresses the locking lever 811.4 relative to the holding element base 811.1 in the open position shown in FIG. 8A.

When getting into the binding, the projection (not specifically designated here) on the front sole of the ski boot pushes the nose 811.4b and thus the locking lever 811.4 downward against the force of the torsion spring element 811.5 and finally reaches the position shown in FIG. 8E , It can be seen that the locking lever 811.4 in the slot guide 811.3 has shifted about the pivot axis 811.2 with respect to the holding element base 811.1, with the result that the pawl section 811.4c has slid up and back over the nose 811.1a on the holding element base 811.1 and has been locked there, as long as the holding jaws 811.4a are locked behind the projection on the front of the ski boot. This will be a Allows lifting of the ski boot heel while running or when skiing down in the Telemark style without releasing the lock with the rear holding element.

When subjected to a lateral or torsional force or more consciously

After the engagement between the second part 809.2 of the actuating element 809 and the hook 813.1a has been released by rotating the rotary plate 813.7 about the axis of rotation 813.2 or pivoting of the actuating element 809, actuation of the binding for getting out slides, the rear holding element together with the slide plate 813.1 and the support plate 815 under the action of the compression springs 811b to the rear so that the locking between the nose 811.1a and the pawl section 811.4c is released. This releases the protrusion on the front sole of the ski boot for exiting the binding.

A further ski binding 9-00 is described in FIGS. 9A to 9D, which combines elements of the last-described embodiment according to FIGS. 8A to 8F with those from other embodiments described further above. The mode of operation of the rear holding element 911 is the same as in the last described embodiment, so that reference is made to this. The return spring arrangement 923 here has the same position as in the embodiment according to FIGS. 5A and 5B described above.

The binding 900 comprises an extended front holding element 907, in which a front support plate 915.1 is integrated. This comprises two (not separately designated), coarse-structured side supports that surround a clamping device 913 integrated with a rear support plate 915.2 on both sides. The tensioning device 913 includes, in addition to the rear support plate 915.2, which establishes the connection with the rear holding element 911, a front connection plate 913.1, which ends at its front end in the area of the actuating element 909 in a hook 913.1a. The connecting plate 913.1 is screwed to the rear support plate 915.2 on an upstand 913.1c. The interaction of the connecting device 913 with the actuating element 909 essentially corresponds to the descriptions given above for FIGS. 5A and 5B and FIGS. 8A to 8F, to which reference is hereby made.

A special feature of the present arrangement is the presence of a compression spring arrangement 935 below the rear support plate 915.2, which comprises an elongated coil spring 935a with an internal guide rod 935b which is supported on the one hand against the mounting plate 905 and on the other hand against the front connecting plate 913.1. It is used to return the connecting device 913 to its starting position or to a longitudinal position corresponding to the starting position (from which it is then brought back into the starting position by pivoting) after an actuation or a triggering. The axis of rotation 913.2 of the connecting device 913 is offset here behind the compression spring arrangement 935 toward the rear holding element 911.

In a modification (not shown) of the last-mentioned embodiment, the front connecting plate 913.1 is made flat at its rear end without upturn and is screwed in the plane to a rear connecting plate, which in turn is screwed to the rear holding element, but not necessarily as a support plate for the ski boot sole works. The ski boot can rest alone on the front support plate on the front holding element on the one hand and on side cheeks of the section of the rear holding element facing the ski tip.

10A to 10D, as a further embodiment of the invention, a ski binding 1000 is outlined, which is available with commercially available Telemark ski boots 1003 can be used. With regard to the detailed descriptions in the preceding embodiments, only the components or aspects that differ from these are explained in more detail here. Components which are analogous or correspond to the preceding embodiments are also designated by corresponding reference numerals and are usually not explained in more detail here; neither are all of the details of FIGS. 10A to 10D designated by reference numerals.

The ski binding 1000 also includes a front holding element 1007, a rear holding element 1011, which here acts on the ski boot heel 1003c, a tensioning device (connecting plate) 1013 and a profiled support plate 1015.

The structure of the front holding element 1007 corresponds to a certain degree to that of the front holding element 107 in FIGS. 1A to IF, but a separate actuating element is omitted here. Rather, a nose-groove engagement arrangement 1008 on the front edge of the front holding element 1007 ensures that when a predetermined pivoting angle of the shoe tip (release angle) of the holding jaws 1007a is raised and the front sole end 1003a is released. The actual actuation of the binding for the exit therefore takes place here on the rear holding element.

The rear holding element 1011 therefore differs fundamentally from all of the above-described designs. It naturally includes a holding jaw 1011a, to which a rear actuating element 1011b is assigned. The latter is attached to a holding element base lOlle via a first pivot axis 1011c with an associated torsion spring element lOlld. The holding jaw 1011a is in turn pivotally connected to the actuating element 1011b via a second pivot axis 10f with an associated torsion spring element 1011g. The entire rear holding element 1011 is connected to the connecting plate 1013 in the manner already known from some of the above-described embodiments (in particular according to FIGS. 5A and 5B). The connection comprises, in particular, a connecting screw 1025, which is screwed through an elongated hole 1011h in the holding element base 10 into a sliding piece 1026 guided in the holding element base 10 and together with this a length adjustment of the rear holding element 1011 on the connecting plate 1013 (and thus opposite the front holding element 1007) realized by preferably about 70 mm.

When the heel of the ski boot 1003 is raised, as in the embodiment according to FIGS. 5A and 5B, the connecting screw 1025 can slide in the elongated hole 1011h against the spring force of coil springs 10lli in corresponding guides of the holding element base. This results in a bending compensation (flex compensation) of preferably approximately 30 mm.

As can best be seen in FIG. 10D, to get out of the binding by pressure from above into a recess lOllj on the upper side of the rear actuating element 1011b, this is pivoted back against the force of the torsion spring lOlld about the pivot axis 1011c on the holding element base lOlle and takes the holding jaw 1011a connected to it via the swivel axis 10f until it disengages from the ski boot heel 1003c and thus releases it.

FIG. 11 shows a modified embodiment 1011 of the rear holding element, which largely corresponds in structure and function to the above-described holding element 1011 according to FIGS. 10A to 10D. In this respect, identical reference numbers have been used. The main difference is in the other design of the holding element base 1011e ^Λ and Coil springs 1011i, which are shorter here and do the above-mentioned flex compensation, but do not allow length adjustment.

The embodiment of the invention is not limited to the examples described above, but is also possible in a large number of further modifications, which can be formed in particular by combinations of individual components and / or functions of the above-described embodiments.

LIST OF REFERENCE NUMBERS

100; 200; 300; 400; 500 600; 700; 800; 900; 1000 ski bindings

101 ski surface

103; 403; 503; 1003 ski boot

103a; 1003a front sole end

103b projection on front sole 105; 205; 305; 505; 705; 805 mounting plate

107; 207; 307; 407;

507; 607; 707; 807; 907; 1007 front holding element

107a; 407a; 507a; 507a '; 607a; holding jaws

807a; 1007a 107b concave pressure and

sliding surface

109; 209; 309; 409;

509; 609; 709; 809 actuator

109a; 409a pressure surface and sliding surface

109c; 409c; 509c; 809c actuator pivot axis

109d; 109e; 409d; 509d; 609D; 609e deepening

111; 211; 311; 411 511; 611; 711; 811; 911; 1011; 1011 ^λ rear holding element purple; 411a; 511a; 511a ';811.4a; holding jaws

1011

111b; lOlli coil spring

111c abutment surface llld upper side llle; 511e; 1011h slot

113; 213; 313; 413;

513; 613; 713; 813; 913; 1013 clamping device (connecting plate) 113a; 413a upstand (abutment surface)

113b; 109b; 413b; 509b; 809b swivel axis

115; 315; 415; 515;

615; 715; 815; 915; 1015 platen

117 heel support element

119; 819 ski brake

121 holding element base

123; 223; 423; 523;

623; 723; 823 release spring device

123a coil spring

123b coil spring bracket

123c; 723c adjusting screw 123d pressure plate

123e; 223e; 723e; 823e slide pin 125; 225; 525 connecting pin or screw

127 swivel lever 129; 429 ski pole 231 elastomer block 233 abutment plate 313a, 313b, 313c parts of the connecting plate 409f; 809f torsion spring

503c; 1003c ski boot heel

509.1; 809.1 first part

509.2; 809.2 second part

513.1; 713.3 front connecting plate 513.1a, 813.1a; 913.1a hook (hook-shaped upstand)

513.1b slot guide

513.2 screw

513.3; 713.6 rear connection plate

535; 635; 735; 835; 935 pin (axis of rotation) 607c contact area (nose)

613.1; 713.1; 813.1; 913.1 Connection or rotating plate

613.2; 713.2; 713.5 swivel axis

613.3 lever

715a, 715b, 715c sections of the platen

723f plastic housing

815a slot

811.1; lolle; 1011e holding element base

811.1a nose

811.2; 1011c; lOllf swivel axis

811.3 slot

811.4 locking lever

811.4b nose

811.4c pawl section

811.5; lOlld; 1011g torsion spring element

913.1c backsplash

915.1, 915.2 front, rear support plate

935 compression spring assembly 935a coil spring 935b guide rod 1008 nose-groove engagement assembly

1011b rear actuator

1026 slider

Claims

claims

1. Ski binding, especially touring, telemark or cross-country skiing, with

a front holding element assigned to the front sole end, a rear holding element designed to engage the front sole of the shoe or the heel of a ski boot and

- A clamping device connecting the front and rear holding element to one another, which allows the front and rear holding element to be locked with the ski boot and, in particular in the locked state, to raise the heel of the ski boot with respect to the ski, characterized in that the clamping device has at least one spring-loaded unlocking device for lifting the Locking between the ski binding and the ski boot is associated with the action of a torque lying above a predetermined threshold value about an upright axis of rotation on the ski or ski boot and / or with manual action on a locking element which acts essentially only in a form-fitting manner.

2. Ski binding according to claim 1, characterized by a first unlocking device for releasing the lock between the ski binding and ski boot when the lateral force acts and a second unlocking device for releasing the lock when pressure is exerted on the actuating element.

3. Ski binding according to claim 2, characterized in that the first and second unlocking device together a on the tensioning device, in particular non-rotatably attached, rotatable relative to an axis of rotation perpendicular to the ski surface, the first locking element, in particular a locking hook, and one in the locked state in positive engagement with the first locking element, which is rotationally fixed with respect to the axis of rotation and pivotable about a first pivot axis essentially parallel to the ski surface and perpendicular to the longitudinal axis of the ski and can be brought out of engagement with the first locking element by pivoting relative to the first locking element, in particular a nose or groove ,

4. Ski binding according to claim 3 and claim 1 or 2, d a d u r c h g e k e n n z e i c h n e t that an actuating element is connected to the second locking element such that the engagement between the first and second locking element is released by the pressure on the actuating element.

5. Ski binding according to one of the preceding claims, characterized in that on the front and / or rear holding element and / or in the area between these, a spring device for biasing the holding elements in the locking position with the ski shoe, in particular the shoe front sole, is provided.

6. Ski binding according to claim 3 or 4 and claim 5, characterized in that between the front and rear holding element, a front spring device for biasing the first locking element in the engaged position with the second locking element and on the rear holding element a rear spring device cooperating with the front spring device for The rear holding element is pretensioned in the engagement position with the front sole of the shoe or the heel, the spring force of the rear spring device being greater than that of the front spring device.

7. Ski binding, in particular according to one of the preceding claims, characterized in that the rear holding element about a second, substantially parallel to the ski surface and perpendicular to the longitudinal axis pivot axis attached to the tensioning device and by a corresponding to its location and shape projection on the ski boot The front sole or the rear edge of the heel is designed to be actuable when the ski boot is put on.

8. Ski binding according to claim 7, d a d u r c h g e k e n n z e i c h n e t that the rear holding element has a nose that is pressed down when putting on the ski boot through the underside of the projection on the ski boot front sole.

9. Ski binding according to claim 6 or 7 and claim 8, characterized in that the rear holding element is connected in a lever-like manner to the rear spring device such that the actuation of the Holding element by placing the ski boot behind the projection on the ski shoe front sole against the spring bias generated by the rear spring means.

10. Ski binding according to one of claims 7 to 9, characterized in that the rear holding element is biased by a torsion spring in the open-pivot position and has an additional spring-loaded locking device which in the heel or the projection on the ski boot front sole locked state prevents rotation of the holding element in the open pivot position.

11. Ski binding according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t that the front and / or rear holding element has a holding jaws adapted to overlap the front sole end of the ski shoe or a projection on the front of the ski shoe or the heel.

12. Ski binding according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t that the tensioning device has a flexible in a longitudinal sectional plane of the ski binding flexible connection part for at least indirect rotationally fixed connection of the front holding element to the rear holding element.

13. Ski binding according to claim 12 and one of claims 6 to 11, characterized in that the flat connecting part is fastened to the front and rear spring means in such a way that it connects the front and rear holding element to one another in a resilient manner, at least in the unlocked state.

14. Ski binding according to claim 12 or 13, characterized in that the flat connecting part is guided laterally relative to the ski, in particular by the side edges of the connecting part encompassing side walls of a binding housing fastened to the ski and / or longitudinal ribs or grooves of the binding housing, which with corresponding longitudinal grooves or - Interact ribs on the connecting part.

15. Ski binding according to one of the preceding claims, g e k e n n z e i c h n e t d u r c h a ski brake, which is attached in particular on the surface of the flat connecting part such that it is raised when lifting a ski boot placed on the connecting part with this and the connecting part and is inactive.

16. Ski binding according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t that spring means for flexion compensation are provided on the rear holding element.

17. Ski binding according to claim 16 and one of claims 6 to 15, d a d u r c h g e k e n n z e i c h n e t that the spring means for flexion compensation by the rear

Spring device are realized.

18. Ski binding according to one of the preceding claims, characterized in that the unlocking device for releasing the locking between the ski binding and the ski boot under the action of a lateral force elastic restoring means for compensating small lateral forces, in particular one for adjustment the release force has adjustable release spring means.

19. Ski binding according to one of claims 6 to 18, so that the front spring device has a long-stroke helical spring as a compression spring with an internal guide rod that is supported at one end against a binding mounting plate and connected to the unlocking device at the other end.

20. Ski binding according to one of claims 6 to 19, characterized in that the rear spring device comprises two short-stroke screw springs, which are each arranged symmetrically to the longitudinal axis of the binding in a guide channel ^' .

21. Ski binding according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t that adjustment means for length adjustment of the ski binding, in particular with a lockable in a longitudinal guide, are provided on the rear holding element.

22. Ski binding according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t that the actuating element in the region of the first pivot axis has a torsion spring element and / or a lever device which has a pivot lever which can be brought into an over-center closed position.

23. Ski binding according to one of the preceding claims, characterized in that the front holding element has a support plate for the ski boot front sole.

4. Ski binding according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t that behind, for attacking the ski shoe front sole or before a rear retaining element designed to attack the ski shoe heel, a, in particular rigidly connected to the ski, support element for the sale of the ski shoe is provided.