EP0890379B1 - Ski binding - Google Patents

Description

Technical field

The present invention relates to a ski binding with thrust fastening means which is fastened to the ski in an articulated manner so that it can pivot about at least one transverse axis.

State of the art

With regard to their function, ski bindings can be divided into slope bindings that only used for skiing and skiing on ski lifts, and touring bindings that in addition also for walking on skis, especially for ascending with the help of climbing skins attached to the skis can be used. While the former is just a reliable one Fixing the ski boot on the ski in a so-called downhill position to guarantee, the latter must also climb from the departure position can be brought into an ascending position of the binding, in which the ski boot mostly only in the area of the ski boot tip around a transverse axis is pivotally attached to the ski and can be lifted off the ski in the heel area to allow a joint movement between the ski boot and ski for walking.

On touring bindings, completely different, some of them have conflicting requirements. The ascent is as large as possible Freedom of movement between ski boots and skis is desirable to ensure an unhindered To enable walking or climbing. On the other hand, one is possible on departure rigid connection between ski and ski boot on the one hand and between ski boot and On the other hand, the foot / lower leg is desirable for optimal control and guidance of the skis.

In earlier years, the ski boots were mainly made of leather the relatively small stiffness of the shoe leather provides only limited support from Accessible foot / lower leg. On the one hand, this became part of the upgrade required flexibility of the foot is already achieved through the flexibility of the ski boots themselves, on the other hand, touring bindings could be used, which the flexibility of the upper and sole of the shoe. For example, in AT 343 522 (Hausleithner) described a touring binding, which for a comfortable ascent supports the flexibility of a flexible shoe sole by, on the one hand, a first transverse axis is pivotally mounted on the ski in the region of the toe of the shoe and on the other hand, it can be additionally bent in the bale area around a second transverse axis.

Since the advent of plastic ski boots, however, ski tourers have also been no longer ready for the much greater hold and the resulting better ski guidance to waive on the descent, which can be reached with plastic ski touring boots are. Today there are practically only plastic ski touring boots with a stiff sole and suitable ski bindings are available on the market for such ski boots. Such Tour binding, which in particular also all safety requirements modern slope bindings are described in WO 96/23559 (Fritschi). Bindings of this type are typically horizontal in the ascent position Cross axis swiveling in the area of the toe.

There is a swiveling movement with a stiff sole around a swivel axis in the toe area not that dictated by the anatomy of the human body corresponds to natural movement, various efforts have been made Development of touring bindings undertaken that have a more ergonomic movement sequence when climbing (see e.g. U.S.-A-4,854,605).

In CH-659 397 (Flückiger) there is a ski binding described with a walking accessory that is in a first phase of joint movement a pivoting movement about a transverse axis in the ball area and in one second phase a pivoting movement around a transverse axis in the toe area allows. The shoe is thus a double-jointed connection with two different pivot axes connected to the ski. During this walking accessory allows a certain approach to a natural movement, he points out firstly, the disadvantage that the transition of joint movement from one Swivel movement around the first transverse axis to a swivel movement around the second transverse axis occurs abruptly, which is a jerky change in the course of motion for the skier, causing a slap on the shin with every step and / or the heel is transmitted. Second is the design-related binding height and consequently the height of the shoe position above the ski is considerable. In addition, the walking accessory for the descent must be removed from the binding and separately be carried along.

Presentation of the invention

The object of the present invention is to provide a ski binding by which overcome the disadvantages of the well-known ski bindings.

The solution to the problem is the subject of claim 1.

Advantageous further developments of the invention are the subject dependent claims.

The ski binding according to the invention has means for attaching a shoe to the Binding, which is pivotally attached to the ski and can be pivoted about at least one transverse axis are. In addition, the ski binding according to the invention has a joint movement between the shoe fasteners and the cam steering cam body with a surface convexly curved in at least one area in the longitudinal direction of the ski on.

So that the cam body has its guiding function for joint movement at all the hinge between shoe fasteners and skis must of course have more than just one (degree of freedom) of freedom, as a swivel or swivel joint with exactly one degree of freedom of rotation, as is usual with known touring bindings is a circular movement, the path of which is no longer controlled additionally can. A joint that on the one hand allows the shoe fastening means around a transverse axis to be pivotably attached to the ski, and on the other hand more than just one (rotating) Degree of freedom, e.g. on a double joint with two swivel axes, a rotary-thrust joint, a curve joint, etc. based. For better A distinction is made in the following for a pure rotating or swiveling movement a fixed rotation or swivel axis the term "swivel movement" used while the articulated relative movement between the ski on the one hand and the boot or the shoe fastening means, on the other hand, generally referred to as "joint movement" becomes.

The cam body according to the invention controls the joint movement by means of a rolling process between the convexly curved surface and a counter surface.

The rolling process between the convex curved surface in the longitudinal direction of the ski defines a rolling or rolling curve, and the counter surface can be made from one pure, non-slip rolling or rolling or a rolling combined with sliding consist. In the following the terms "pass on" and the ones derived from them Terms for both non-slip rolling and combined with sliding Rolling used.

Furthermore, the term "ski binding" is not mistakenly so in the following understand that a ski binding can only be mounted on skis. Under Rather, ski binding is understood to mean a binding that, in addition to being attached to slopes and touring skis also on all other types of skis, snowboards, big feet, Snowshoes, roller skis, skate runners and similar devices can be attached, that require a flexible connection between a shoe and the device.

The device according to the invention ensures an ergonomic, jerk-free Sequence of movements when climbing with skis. Another advantage is the Use of a touring binding according to the invention in connection with a Touring bindings usual climbing aid. Since the binding according to the invention is already for a significant easing of the ascent especially in steep terrain provides, the climbing aid used in connection with the binding according to the invention compared to climbing aids with known touring bindings, the shoe heel less high support to achieve the same level of relief when climbing. Thus, in connection with the binding according to the invention, smaller and therefore lighter climbing aids can be used than with conventional touring bindings.

In a preferred embodiment of the invention, the ski boot is lowered the curve body in an area between the ski boot and the ski, in the longitudinal direction of the ski viewed in front of the middle of the shoe. The curved body is preferably designed and arranged so that at least in one phase of the joint movement to ascend the curve body is rolled so that the distance between the Shoe heel and the support line of the curve body with increasing elevation of the Shoe heel increases.

The cam body is preferably for the purpose of longitudinal guidance of the cam body during the joint movement with at least two steps Provide surfaces. The stepped surfaces can interact with appropriately designed stepped surfaces be formed on the ski or on binding parts attached to the ski.

In a preferred embodiment, the cam body is that of the invention Ski binding on the shoe fasteners and / or other attached to the shoe Binding parts arranged so that when the shoe is lowered, the convex curved surface lies on the underside of the curve body, that of the top of the ski opposite. It is preferred to continue on the ski and / or on the ski Binding parts a rib transverse to the longitudinal direction of the ski in such a way under the curve body arranged that at least in one phase of the joint movement of the cam body is rolled on the rib, in this phase the distance between the heel of the shoe and the contact line of the curve body with increasing elevation the shoe heel remains essentially constant.

Furthermore, an embodiment of the invention is preferred in which the cam body is designed as an integral part of the shoe fastening means. preferably, the shoe fastening means comprise a carrier on which the ski boot can be fastened is, wherein the cam body is designed as the front part of this beam.

In an advantageous embodiment, the binding according to the invention further comprises a double-jointed device, the shoe fastening means by one first transverse axis are pivotally articulated on an intermediate member, which around a second transverse axis is articulated on the ski. Preferably the first is Transverse axis as a pivotable connection between the intermediate link and the cam body educated.

Another advantageous embodiment of the invention is characterized by a between the intermediate member and the shoe fastening means acting from spring is configured and arranged such that it pivots the shoe fastening means towards increasing the heel of the shoe by the counteracts the first transverse axis. Preferably there is also a between the Intermediate member and the ski-acting spring are provided, which are designed and is arranged so that it pivots the intermediate member in the direction an increasing angle between the ski and the intermediate link around the second Counteracts the transverse axis. The two springs are advantageously of this type trained and arranged that by between the pontic and the ski acting spring exerted a greater torque with respect to the second transverse axis is considered by the between the intermediate link and the shoe fasteners acting spring with respect to the first transverse axis.

The following detailed description of exemplary embodiments of the present In connection with the accompanying drawings, the invention serves only as an example for a better understanding of the invention and are not intended to limit the Protect the scope of the claims. For the expert are from the following description in conjunction with the accompanying drawings and the The entirety of the claims further advantageous embodiments and combinations of features easily recognizable, but still within the Scope of the present invention.

Brief description of the drawings

Fig. 1.a

schematische Seiten-Teilansicht einer ersten bevorzugten Ausführungsform der erfindungsgemässen Skibindung, in einer Position mitabgesenkter Schuhferse;

Fig. 1.b

schematische Seiten-Teilansicht der Ausführungsform aus Figur 1.a in einer ersten Gelenk-Position mit angehobener Schuhferse;

Fig. 1.c

schematische Seiten-Teilansicht der Ausführungsform aus Figur 1.a in einer zweiten Gelenk-Position mit angehobener Schuhferse;

Fig. 2

perspektivische Detailansicht des Zwischenglieds gemäss der in den Figuren 1.a bis 1.c dargestellten Ausführungsform der Erfindung;

Fig. 3.a

Seiten-Teilansicht einer zweiten bevorzugten Ausführungsform der erfindungsgemässen Skibindung;

Fig. 3.b

Seiten-Detailansicht des Zwischenglieds gemäss der in Figur 3.a dargestellten Ausführungsform der Erfindung;

Fig. 3.c

schematische Seiten-Teilansicht der Ausführungsform aus Figur 3.a in einer ersten Gelenk-Position;

Fig. 3.d

schematische Seiten-Teilansicht der Ausführungsform aus Figur 3.a in einer zweiten Gelenk-Position;

Fig. 3.e

schematische Seiten-Teilansicht der Ausführungsform aus Figur 3.a in einer dritten Gelenk-Position;

Fig. 3.f

schematische Seiten-Teilansicht der Ausführungsform aus Figur 3.a in einer vierten Gelenk-Position;

Fig. 4.a

schematische Seiten-Teilansicht einer dritten bevorzugten Ausführungsform der erfindungsgemässen Skibindung, in einer Position mitabgesenkter Schuhferse;

Fig. 4.b

schematische Seiten-Teilansicht der Ausführungsform aus Figur 4.a in einer ersten Gelenk-Position mit angehobener Schuhferse;

Fig. 4.c

schematische Seiten-Teilansicht der Ausführungsform aus Figur 4.a in einer zweiten Gelenk-Position mit angehobener Schuhferse;

Fig. 5.a

perspektivische Detailansicht des Zwischenglieds gemäss der in den Figuren 4.a bis 4.c dargestellten Ausführungsform der Erfindung;

Fig. 5.b

Querschnitt entlang der Linie A-A in der Figur 4.a;

Fig. 6

schematische Seiten-Teilansicht einer vierten Ausführungsform der erfindungsgemässen Skibindung;

Fig. 7

schematische Seiten-Teilansicht einer fünften Ausführungsform der erfindungsgemässen Skibindung.

The drawings illustrate preferred embodiments of the present invention.

Fig. 1.a

schematic partial side view of a first preferred embodiment of the ski binding according to the invention, in a position with lowered heel;

Fig. 1.b

schematic partial side view of the embodiment of Figure 1.a in a first hinge position with raised heel;

Fig. 1.c

schematic partial side view of the embodiment of Figure 1.a in a second hinge position with raised heel;

Fig. 2

perspective detailed view of the intermediate member according to the embodiment of the invention shown in Figures 1.a to 1.c;

Fig. 3.a

Partial side view of a second preferred embodiment of the ski binding according to the invention;

Fig. 3.b

Detailed side view of the intermediate member according to the embodiment of the invention shown in Figure 3.a;

Fig. 3.c

schematic partial side view of the embodiment of Figure 3.a in a first hinge position;

Fig. 3.d

schematic partial side view of the embodiment of Figure 3.a in a second hinge position;

Fig. 3.e

schematic partial side view of the embodiment of Figure 3.a in a third hinge position;

Fig. 3.f

schematic partial side view of the embodiment of Figure 3.a in a fourth hinge position;

Fig. 4.a

schematic partial side view of a third preferred embodiment of the ski binding according to the invention, in a position with lowered heel;

Fig. 4.b

schematic partial side view of the embodiment of Figure 4.a in a first joint position with raised heel;

Fig. 4.c

schematic partial side view of the embodiment of Figure 4.a in a second hinge position with raised heel;

Fig. 5.a

perspective detailed view of the intermediate member according to the embodiment of the invention shown in Figures 4.a to 4.c;

Fig. 5.b

Cross section along the line AA in Figure 4.a;

Fig. 6

schematic partial side view of a fourth embodiment of the ski binding according to the invention;

Fig. 7

schematic partial side view of a fifth embodiment of the ski binding according to the invention.

In principle, the same parts are provided with the same reference symbols in the figures.

Ways of Carrying Out the Invention

Figures 1 and 2 represent a first preferred embodiment of an inventive Ski binding with a curved body 280 represents. As a joint with more than just a (rotational) degree of freedom between a shoe carrier 260 of the shoe fastening means and the ski top 210 has that shown in FIGS. 1 and 2 Embodiment of the invention on a double joint-like device. The carrier 260 with a front sole hold-down device 270 can be pivoted about a first transverse axis 230 hinged to an intermediate member 240, which is about a second transverse axis 220 is hinged to a fastening part 250. As in FIG. 2 is clearly seen, the intermediate member 240 is in this embodiment of the Invention from a center plate, which is essentially in the lowered position of the binding is parallel to the top of the ski, and two side parts with holes for the Swivel axes 220 and 230 are provided. The fastening part 250 is with screws 252, 254 attachable to the ski (not shown). The plate-shaped fastening part 250 is viewed behind the bearing point for the second transverse axis 220, in the longitudinal direction of the ski backwards, extended. The top of this extension forms the counter surface 251 on which the convex curved surface 281 mentioned below of the curve body 280 is rolled. At the very rear, essentially below the Ball area of the ski boot attached to the shoe carrier 260 (not shown) is on the fastening part 250 a rib 290 running transversely to the longitudinal direction of the ski formed.

A curve body 280 is formed on the carrier 260 in its foremost region is formed as an integral part of the carrier 260. The curve body is on on its underside is a surface 281 which is convexly curved in the longitudinal direction of the ski and which defines a rolling / rolling curve, the surface being straight across the longitudinal direction of the ski is trained.

In the embodiment of the invention shown in FIGS. 1 and 2, the Curve body 280 (and thus the carrier 260) behind the position of the tip of the shoe ski boots fixed on the shoe carrier 260, in the ball area, around the transverse axis 230 pivotally connected to the intermediate member 240. The binding components are arranged such that the sequence of articulation between the shoe carrier 260 or the shoe and the ski when lifting the shoe heel in three phases.

In Figure 1.a, the binding is in the position with the shoe heel lowered, at the beginning of the first phase. In the first phase (rejection phase) of the joint movement the cam body 280 is rolled on the rib 290, the distance between the heel of the shoe and the support line 285 of the curve body 280 (contact line between convex surface 281 and counter surface 251) essentially remains constant. In the first phase, the skier exercises the greatest strength over the Shoe and the binding on the ski loaded with its weight, that's why small distance between the heel of the shoe and the support line 285 of the curve body and thus a small articulated lever is an advantage.

In the second binding movement phase (roll-off phase), when lifting further the heel of the curve body 280 with its convex curved surface 281 rolled on the counter surface 251. Due to the articulated attachment of the curve body 280 on the intermediate link 240, the rolling does not consist of a pure, non-slip Rolling movement, but from a combination of rolling / rolling and Slide. This rolling motion increases the distance between the heel of the shoe and the support line 285 of the curve body 280 continuously in the second phase, by the contact line 285 of the curve body 280 on the counter surface 251 continuously moves forward. In the second phase shown in FIG. 1.b, the forces continuously exerted by the skier on the ski. The second The phase becomes a limitation when a first stop (not shown) is reached the pivoting movement about the first transverse axis 230 is completed. The first The stop blocks the swiveling movement from continuing about the transverse axis 230.

If the joint movement between the shoe and ski continues in the same direction, So is in the third phase (swing phase) of the movement shown in Figure 2.c the first transverse axis 230 of the binding joint is blocked by the first stop, whereby the articulation movement only results from a swiveling movement around the second Transverse axis 220 exists. At the end of the third phase the touring skier will be relocated Weight on the other ski and he starts doing that until essentially dragging skis resting on the snow. When tightening and then Pushing the relieved ski forward becomes the shoe or the shoe fastening means with respect to the ski in a reverse articulated movement to the starting position recycled.

FIGS. 3.a to 3.f show a second preferred embodiment of the invention shown, the one shown in Figures 1 and 2 and described above Embodiment is similar. The intermediate link 340 is made much shorter than the intermediate link 240 described above, and the transverse axis 330 is in Area below the toe as an integral part of the shoe rack 360 trained cam body 380 arranged. Despite the arrangement of the transverse axis 330 in the area of the shoe tip results from the action of the curve body 380 for the first phase of the movement sequence approximated a pivot point in the ball area and thus an ergonomic sequence of movements.

In addition to the first stop to limit the swiveling movement around the first Transverse axis 330 (analogous to the embodiment described in FIGS. 1 and 2) is in the second preferred embodiment described in Figures 3.a to 3.f. the invention for limiting the pivoting movement about the first transverse axis In the opposite direction, a second stop is provided so that pivoting in the direction of lowering the heel over the joint position when lowered Shoe is made impossible. This prevents the double joint in the Departure position of the binding of an upward force of the toe, such as they e.g. can arise when skiing with reserve, yields undesirably. The blocking of the pivoting movement about the first transverse axis 330 by the second However, a stop can also be useful in the ascent position of the binding, e.g. when performing stair steps or hairpin bends on the ascent. To form the second stop for the first transverse axis 330 is a projection on the cam body 380 molded on, in the binding position with the heel of the shoe lowered with its front 382 against a correspondingly shaped rear side 342 of the intermediate member 340 pushes.

3.c - 3.f is the embodiment of the invention shown in FIG. 3.a. in different joint positions - i.e. with raised to different heights Shoe heel - shown. In Figure 3.c, the binding is also lowered in the position Shoe heel, shown at the beginning of the movement sequence for an ascent step. The intermediate member 340 is at the end with the first transverse axis 330 upwards raised, and its rear 342 abuts the correspondingly shaped front 382 on a projection formed on the curve body 380 and thereby forms a stop to limit the pivoting movement about the first transverse axis 330, thus panning in the direction of lowering the heel over the joint position with the boot lowered - or lifting the ski boot in the area of the Shoe toe - is made impossible. When lifting the heel (figures 3.d to 3.e) it wanders the contact line 385 of the curve body 380 on the fastening part 350 continuously forward, with the intermediate link 340 in the area of its first Transverse axis 330 is first lowered and later raised again. All in all this embodiment of the invention also provides a round, ergonomic Movement.

In contrast to the first preferred embodiment described above in the second preferred embodiment shown in FIGS. 3.a to 3.f. no rib formed on the end of the fastening part 350. This eliminates this Embodiment the rejection phase of the binding movement sequence mentioned above.

However, an alternative embodiment is also possible, which has all the features has the embodiment shown in Figures 3.a to 3.f and for preparation a three-phase movement sequence to the embodiment of the figures 1.a - 1.c has an analogous transverse rib. As a further alternative (both to the embodiment of Figures 1.a - 1.c as well as the embodiment of Figures 3.a to 3.f) the cross rib can instead of on the counter surface opposite the curve body be molded onto the curve body itself, without this having any function or purpose the cross rib is changed significantly.

FIGS. 4 and 5 show a third preferred embodiment of the invention, that of the first preferred embodiment shown in FIGS. 1 and 2 and the second preferred embodiment shown in FIGS. 3.a to 3.f. is similar.

As a joint between the shoe carrier 460 of the shoe fastening means and the top of the ski 410 shows the embodiment of the invention shown in FIGS. 4 and 5 again a double-jointed device on: the carrier 460 with a front sole hold-down device 470 is pivotable about a first transverse axis 430 an intermediate link 440 which is pivotable about a second transverse axis 420 is hinged to a fastening part 450.

As can be seen in FIG. 5.a, there is the one-piece intermediate member 440 in the third preferred embodiment of the invention from a medium, plate-shaped Web part 445 and two plate-shaped lateral leg parts 444, 446. Die Plates of the two leg parts 444, 446 are approximately at right angles to the plate of the Bridge section 445 arranged. The leg portions 444, 446 are with holes 448.1 - 448.4 for the swivel axes 420 and 430. About halfway between the two leg portions 444, 446 is on the front with respect to the longitudinal direction of the ski Side formed a cam 447 on the web portion 445, which is used to accommodate the following described compression spring 425 is formed.

The one-piece fastening part 450 can be fastened to the ski with screws. The fastener 450 is behind the bearing for the second transverse axis 420, in the longitudinal direction of the ski viewed, elongated plate-shaped to the rear. On the side edges of the The top surfaces of this plate-shaped extension 453 are the counter surfaces 451.1 - 451.4 on which the convex curved surfaces mentioned below 481.1 - 481.4 of the curve body 480 are rolled off.

A curve body 480 is formed on the carrier 460 in its foremost region is formed as an integral part of the carrier 460. On the side edges of the The underside of the curve body 480 is four which are convexly curved in the longitudinal direction of the ski Surfaces 481.1 - 481.4 are formed, which define a rolling / rolling curve.

In contrast to the embodiments of the invention described above exist in the embodiment of the invention shown in Figures 4 and 5 the curved surface of the curve body 480 and the corresponding counter surface on the top of the fastening part 450 not from a single, continuous Area, but they are each in four partial areas 481.1 - 481.4 or 451.1 - 451.4 divided. This can best be seen in the cross section of FIG. 5.b. Two curved ones Subareas 481.1, 481.2 of the curve body 480 are arranged such that they form a step running along one side edge of the curve body 480. A corresponding step is formed by the two counter surfaces 451.1, 451.2 corresponding longitudinal edge on the top of the plate-shaped extension 453 of the fixing part 450 is formed. The two stages work when the cam body is rolled off 480 together on the plate-shaped extension 453 such that the Curve body 480 is guided on one side in the longitudinal direction. On the other side of the Curve body 480, two further curved surfaces 481.3, 481.4 are arranged such that it runs along the other side edge of the curve body 480 form another level. The other two counter surfaces make the same 451.3, 451.4 a corresponding step on the corresponding other longitudinal edge on the Formed top of the plate-shaped extension 453 of the fastening part 450, the two stages in turn when rolling the cam body 480 on the plate-shaped extension 453 cooperate such that the curve body 480 is guided on one side in the longitudinal direction. Overall, the plate-shaped extension serves 453 thus as a guide rail for longitudinal guidance of the curve body 480 if the latter on the top of the plate-shaped extension 453 of the fastening part 450 is passed on.

Next is the middle part of the top of the plate-shaped extension 453 with a groove-shaped depression 455 which is arranged in the longitudinal direction of the ski. The longitudinal groove 455 creates space for the foremost part of the shoe wearer 460 and the lowermost part of the sole hold-down device 470, if this is created Parts in the course of the joint movement between the shoe carrier 460 and the Shoe and the ski are moved down when lifting the heel of the shoe. On the other hand the gutter is also used to transport snow away when walking with the Ski binding in the joint area and the area between the shoe carrier 460 as well as the ski top 410 penetrates. The groove 455 is designed such that any snow that has penetrated into the binding area due to the articulation of the joints the appropriately trained front part of the shoe carrier 460 and / or the Sole holding-down device 470 is conveyed backwards through the groove 455.

In FIG. 4.a the binding is shown in the position with the shoe heel lowered. The Figure 4.b shows the binding in a position in which the shoe carrier 460 opposite top 410 forms an angle of approximately 60 degrees. At the in In the position shown in FIG. 4.c, the shoe carrier 460 was over 90 degrees the horizontal position.

Analogous to the second preferred embodiment described in FIGS. 3.a to 3.f. the invention is preferred in the third described in Figures 4 and 5 Embodiment of the invention to limit the pivoting movement around the first transverse axis 430 in the rearward direction in turn provides a stop which corresponds to the second stop described above. According to the lead the second embodiment of the invention with its front 382 against a correspondingly shaped rear side 342 of the intermediate member 340 meets in the third embodiment of the invention, a protrusion with its front 482 against a correspondingly shaped rear side 442 of the intermediate member 440 pushes.

In the third preferred embodiment of FIGS However, the invention lacks the first stop in those described above Embodiments of the invention corresponding stop, which in a certain Position the continuation of the pivoting movement about the transverse axis 430 would block. Rather, the sole hold-down device 470 is designed in such a way that that its front outside defines a convex curved contour line. As a result, when the shoe wearer is deflected very much from the rest position, as shown, for example, in Figure 4.c, the sole hold-down 470 quasi as a continuation and curve body and controls the joint movement by is rolled on the fastening part 450. To be in the ascent position despite the lack of the first stop sufficient stability of the binding for relief e.g. ensure when performing stair steps or hairpin bends, According to the third embodiment of the invention, two springs 425, 435 on the Binding arranged.

The tension spring 435 (also called a spring) is on the one hand on the intermediate member 440 - concrete on the inside of the leg portion 446 of the intermediate member 440 - and on the other attached to a longitudinal outside of the curve body 480. The tension spring 435 thus acts when lifting the heel of the swivel movement about the first transverse axis 430 counter and prevents that if the skier together with the ski boot of the ski attached to the binding lifts the rear end of the ski down hangs.

The compression spring 425 is between the front part of the fastening part 450 and arranged the intermediate member 440 and acts the pivoting movement about the second Transverse axis 420 counter that the intermediate member 440 about the second pivot axis 420 downwards, in the direction of the ski top 410. The Compression spring 425 is pontic-side from the front of the pontic web section 445 molded cams 447 added.

The two springs 425, 435 are designed and arranged such that the Compression spring 425 a greater torque with respect to the second pivot axis 420 is exerted as by the tension spring 435 with respect to the first pivot axis 430. This ensures that during the whole joint movement, the essentially executed between the shoe carrier 460 and the mounting plate 450 the curved body 480, which is formed as an integral part of the shoe carrier 460, always is rolled on the plate-shaped extension 453 of the fastening part 450 and the joint movement is thus controlled by the cam body.

To prevent the heel area of the shoe wearer 460 from being relieved the intermediate member 440 by the compression spring 425 about the second pivot axis 420 pressed down on the ski top 410 and thereby due to the convex Curvature of the curve body 480 the heel part of the shoe carrier 460 from the Ski top 410 is lifted away, that is by the second pivot axis 420 Defined swivel joint designed and arranged so that it with a considerable Friction of any pivoting movement around the second pivot axis counteracts. In contrast, that is defined by the first pivot axis 430 Swivel joint designed to be as frictionless as possible to get a to achieve smooth joint movement of the ski binding.

Overall, the embodiment of the invention shown in FIGS. 4 and 5 provides an even rounder and more ergonomic movement than the wider one Embodiments of the invention described above.

In the fourth preferred embodiment of the invention shown in FIG. 6 has the ski binding instead of the double joint mentioned above with two transverse axes just a rotary-thrust joint 600, 605, 630. The cam body 680, which as an integral Part of a carrier 660 receiving the ski boot (not shown) with a front hold-down device 670 is formed, is pivotable about a transverse axis 630 hinged to a fastening part 600. The fastening part 600 is on the ski top 610 attached to the ski. The transverse axis 630 is along a straight, in essentially vertically arranged guide slot device 605. At the Lifting the heel of the shoe and thus the carrier 660 at its rear end (not shown) the cam body 680 and thus the carrier 660 about the transverse axis 630 pivoted, this at the same time in the guide slot device 605 is moved down. At the same time, the curve body 680 with its convex Surface 681 rolled on the counter surface 651, the support line 685 of the curve body 680 (line of contact between convex surface 681 and counter surface 651) viewed in the longitudinal direction of the ski moves forward. The shift between convex surface 681 and counter surface 651 is the one shown in FIG Embodiment combined with sliding.

In the fifth preferred embodiment of the invention shown in FIG. 7 becomes sliding through one corresponding to the convexly curved surface 781 Avoid curve joint 700, 705, 730. In contrast to the straight-line guide slot device 605 of the embodiment described above has this on the top of the ski 710 attached fastener 700 a curvilinear guide slot device 705 for guiding the transverse axis 730. The curvature of the guide slot device 705 is such on the curvature of the convexly curved surface 781 of the curved body 780 that when rolling the convex surface 781 no sliding occurs on the counter surface 751 because the transverse axis 730 through the Guide slot device 705 is guided downwards and forwards at the same time.

Instead of the guide slots 605, 705 shown in FIGS. 6 and 7, at alternative embodiments used other suitable guiding devices that ensure a suitable displacement of the pivot axes 630, 730.

In a further embodiment of the invention, not shown in the drawings the curve body is not on the shoe fasteners, but on the top of the ski arranged, the convex curved surface on the top of the Curved body lies. The rolling process then takes place between this convexly curved Surface and a counter surface instead, either on the bottom of the Shoe fastener or the ski boot.

In a further variant of the invention, not only is the curve body, but also the counter surface is curved in the longitudinal direction of the ski. The passing curve then results by rolling one curved surface onto another curved surface Surface.

As an alternative to the shoe fasteners according to the previously shown Embodiments that include a shoe rack and a sole hold-down In a further embodiment of the invention, the shoe fastening means e.g. include bushings embedded in the sole of the ski boot which correspond to which Can engage pins on the intermediate link.

In a further embodiment of the invention, friction can be reduced between the curve body and the counter surface on which the convexly curved Rolled surface of the cam body, a rolling or sliding device is provided his. So, for example, a roller carriage or below the curve body a sliding carriage can be provided, the top of which forms the counter surface on which the convex surface of the cam body is rolled without sliding, whereby the roller carriage moves at the same time. Instead of a roller carriage, you can also use a series be provided by rollers on the counter surface on which the cam body is rolled becomes. As a variant, the rollers can also be curved along the convex Curve line of the curve body and be arranged on the non-displaceable counter surface be passed on.

In another embodiment, the cam body is by means of a sliding joint attached to the shoe fasteners or the top of the ski. To avoid a Sliding between the convex curved surface of the curve body and the The counter surface is the curve body when rolling between the curve body and the counter surface slidable along the sliding joint.

As a further variant, the cam body can be used to avoid sliding between the convex curved surface of the curve body and the counter surface by one additional transverse axis pivotable on the shoe fastening means or on the top of the ski be attached.

In summary, it can be stated that the invention provides a touring binding which is ergonomic, the anatomy of the human body corresponding movement sequence when walking and especially when climbing Skis allowed. Above the ankle there is for the skier himself Using a ski boot with a stiff sole means a similar sequence of movements like running or walking with a running shoe with a soft sole.

Claims (15)

1. A ski binding with boot fastening means (260, 270; 360, 370; 460, 470; 660, 670; 760, 770) which are hinged onto the ski so as to be pivotable about at least one transverse axis (230; 630; 730), characterized by a cam body (280; 380; 480; 680; 780) which controls the hinged movement between the boot fastening means (260, 270; 360, 370; 460, 470; 660, 670; 760, 770) and the ski and has a convex curved surface (281; 381; 481; 681; 781) at least in one region in the longitudinal direction of the ski.
2. A ski binding according to claim 1, characterized in that when the boot is lowered the cam body (280; 380; 480; 680; 780) is arranged in a region between boot and ski, in front of the centre of the boot when viewed in the longitudinal direction of the ski.
3. A ski binding according to claim 1 or 2, characterized in that the cam body (280; 380; 480; 680; 780) is so formed and arranged that at least in one phase of the hinged movement the cam body (280; 380; 480; 680; 780) is rolled off in such a way that the distance between the heel of the boot and the bearing line (285; 385; 485; 685; 785) of the cam body (280; 380; 480; 680; 780) increases as the lifting of the boot heel increases.
4. A ski binding according to one of claims 1 to 3, characterized in that for longitudinal guiding of the cam body (480) during the hinged movement the cam body (480) is provided with at least two stepped surfaces (481.1, 481.2, 481.3, 481.4).
5. A ski binding according to one of claims 1 to 4, characterized in that the cam body (280; 380; 480; 680; 780) is so arranged on the boot fastening means (260, 270; 360, 370; 460, 470; 660, 670; 760, 770) and/or on the binding parts attached to the boot that when the boot is lowered the convex curved surface (281; 381; 481; 681; 781) lies on the underside of the cam body (280; 380; 480; 680; 780).
6. A ski binding according to claim 5, characterized in that on the ski and/or on the binding parts attached to the ski a rib (290) is arranged beneath the cam body (280), transversely to the longitudinal direction of the ski, such that at least in one phase of the hinged movement the cam body (280) is rolled off on the rib (290), the distance between the heel of the boot and the bearing line (285) of the cam body (280) remaining substantially constant as the lifting of the boot heel increases.
7. A ski binding according to one of claims 1 to 6, characterized in that the cam body (280; 380; 480; 680; 780) is constructed as part of the boot fastening means (260, 270; 360, 370; 460, 470; 660, 670; 760, 770).
8. A ski binding according to claim 7, characterized in that the boot fastening means (260, 270; 360, 370; 460, 470; 660, 670; 760, 770) comprise a support (260; 360; 460; 660; 760) on which the ski boot is fastenable, the cam body (280; 380; 480; 680; 780) being formed as the front part of this support (260; 360; 460; 660; 760).
9. A ski binding according to one of claims 1 to 8, characterized in that the boot fastening means (260, 270; 360, 370; 460, 470) are hinged, so as to be pivotable about a first transverse axis (230; 330; 430), on an intermediate member (240; 340; 440) which is hinged onto the ski so as to be pivotable about a second transverse axis (220; 320; 420).
10. A ski binding according to claim 9, characterized by a spring (435) which acts between the intermediate member (440) and the boot fastening means (460) and is formed and arranged such that it opposes a pivoting movement of the boot fastening means (460) about the first transverse axis (430) in the direction of increasing lifting of the boot heel.
11. A ski binding according to claim 9 or 10, characterized by a spring (425) which acts between the intermediate member (440) and the ski and is formed and arranged such that it opposes a pivoting movement of the intermediate member (460) about the second transverse axis (420) in the direction of an increasing angle between the ski and the intermediate member (440).
12. A ski binding according to claim 10 and 11, characterized in that the two springs (425, 435) are formed and arranged such that a greater torque is exerted by means of the spring (425) acting between the intermediate member (440) and the ski with respect to the second transverse axis (420) than by means of the spring (435) acting between the intermediate member (440) and the boot fastening means (460) with respect to the first transverse axis (430).
13. A ski binding according to one of claims 9 to 12, characterized in that when the boot is lowered the first tranverse axis (230; 330; 430) is arranged behind the toe of the boot when viewed in the longitudinal direction of the ski, and the second transverse axis (220; 320; 420) is arranged in front of the toe of the boot when viewed in the longitudinal direction of the ski.
14. A ski binding according to one of claims 9 to 13, characterized in that a stop (382, 342) is provided which disables the pivoting movement about the first transverse axis (330) in the direction of lowering of the heel beyond the articulation position when the boot is lowered.
15. A ski binding according to one of claims 1 to 14, characterized by the formation and arrangement of the cam body (280; 380; 480; 680) such that the rolling off process between the convex curved surface (281; 381; 481; 681) and a complementary surface consists of rolling off combined with sliding.

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