EP0890378A1 - Ski binding - Google Patents

Abstract

The ski-boot fastenings (260,270) are swivel-linked to the ski by at least one transverse axle (230). The articulated movement between the fastenings and the cam body (280) is controlled by a cam body (280) with a surface convexly curved at least in the ski's longitudinal direction. When the ski-boot is lowered, the cam body is positioned in an area between the ski and boot, in front of the boot's middle. At least in one stage of the articulated movement, the cam body rolls so that the distance between the heel and the support point (285) of the cam body increases as the heel is raised.

Description

Technical field

The present invention relates to a ski binding. In particular, the invention relates a touring binding that ensures an ergonomic movement while walking has a curved body.

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 just one reliable fixation of the ski boot on the ski in a so-called Have to ensure departure position, the latter must also climb be brought from the downhill position to an ascent position of the binding in which the ski boot mostly only in the area of the ski boot tip is pivotally attached to the ski about a transverse axis and in the heel area of the ski can be lifted off to move a joint movement between the ski boot and the ski enable.

On touring bindings, completely different, some of them have conflicting requirements. One is possible on the ascent great freedom of movement between ski boot and ski is desirable to a to allow unhindered walking or climbing. On the other hand, when leaving the most rigid possible connection between ski and ski boot on the one hand and between Ski boot and foot / lower leg, on the other hand, desirable for optimal control or to guide the skis.

In earlier years, the ski boots were mainly made of leather limited support due to the relatively low stiffness of the shoe leather accessible from foot / lower leg. On the one hand, this became part of the The flexibility of the ski boots means that the required mobility of the foot can be climbed achieved, on the other hand touring bindings could be used, which the Flexibility of the upper and sole of the shoe not restricted. For example, in AT 343 522 (Hausleithner) described a touring binding, which for a comfortable Ascending supports the flexibility of a flexible shoe sole by on the one hand pivotable on a first transverse axis in the area of the toe Ski is stored and on the other hand in the bale area around a second transverse axis additionally is kinkable.

Since the advent of plastic ski boots, however, ski tourers have also been no longer ready for the much larger hold and the better Do not ski on the descent with ski touring boots made of plastic are reachable. Today there are practically only plastic ski touring boots with stiffer Shoe sole and ski bindings suitable for such ski boots on the market available. Such a touring binding, which especially all The safety requirements of modern slope bindings are met in WO 96/23559 (Fritschi). Ski bindings of this type are in the ascent position typically around a horizontal transverse axis in the area of the toe swiveling.

Since a pivoting movement with a stiff sole around a pivot axis in the Toe tip area not that due to the anatomy of the human body corresponds to the given natural course of movement, different Efforts to develop touring bindings have been made Allow more ergonomic movement when climbing. In CH-659 397 (Flückiger) describes a ski binding with a walking attachment that is in a first Phase of the articulation movement a swiveling movement around a transverse axis in the Foot area and in a second phase a swivel movement by one Transverse axis in the toe area enables. The shoe is therefore one double-jointed connection with two different swivel axes with the ski connected. During this walking addition a certain approximation to a natural one First of all, it has the disadvantage that the transition the articulation movement from a pivoting movement about the first transverse axis to one Swiveling movement about the second transverse axis takes place abruptly, which is a jerky Change in the course of motion for the skier entails, which means with everyone Step a blow to the shin and / or the heel is transmitted. Second is the constructional binding height and consequently the height of the Shoe position over the ski considerably. In addition, the walking supplement for the Departure from the binding and carried separately.

Presentation of the invention

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

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

The ski binding according to the invention has means for fastening a shoe to the Binding that is articulated about at least one transverse axis on the ski are attached. In addition, the ski binding according to the invention has a Joint movement between the shoe fasteners and the ski controlling Curve body with a convex at least in one area in the longitudinal direction of the ski curved surface.

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 rotation or Swivel joint with exactly one degree of freedom of rotation, as it is known Tour bindings is common, forcing a circular movement, its path no longer can also be controlled. A joint that on the one hand allows the Attaching the shoe fastening means to the ski so that it can pivot about a transverse axis, and on the other hand has more than just one (degree of freedom) of freedom, e.g. on a double joint with two swivel axes, a rotary push joint, one Curve joint etc. are based. For better distinction, the following is for a pure rotation or swivel movement around a fixed rotation or swivel axis of the Term "swivel movement" used during the articulated relative movement between ski and shoe or shoe fastener in general with "Joint movement" is called.

The curved body according to the invention controls the joint movement by means of a Rolling between the convex curved surface and one Counter surface. The rolling process between the convex curved surface, which in Longitudinal ski direction defines a rolling or rolling curve, and the counter surface can from a pure, non-slip rolling or rolling or one with sliding combined passing. In the following the terms "pass on" and the terms derived from it both for a non-slip rolling and for with Sliding combined gear shifting 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 be a binding that, in addition to being attached Slope and touring skis also on all other types of skis or on snowboards, Big-Foots, snowshoes, roller skis and similar devices can be attached, which require a device for fixing and releasing a shoe on the device.

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 Viewed in the longitudinal direction of the ski, arranged in front of the center of the boot. Preferably, the Curve body designed and arranged so that at least in one phase of the Joint movement for ascending the curve body is so rolled that the Distance between the heel of the shoe and the point of contact of the curve body increasing elevation of the shoe heel increases.

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

Furthermore, an embodiment of the invention is preferred in which the Curve body is designed as an integral part of the shoe fastening means. The shoe fastening means preferably comprise a carrier on which the Ski boot is attachable, with the curve body as the front part of this carrier is executed.

In an advantageous embodiment, the binding according to the invention comprises a double hinge-like device, wherein the shoe fastening means around a first transverse axis are pivotally mounted on an intermediate member, which is pivotally mounted on the ski about a second transverse axis. Preferably, the first transverse axis as a pivotable connection between the intermediate member and the Curved body formed.

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

Brief description of the drawings

Fig. 1.a

schematische Seiten-Teilansicht einer ersten Ausführungsform der erfindungsgemässen Skibindung, in einer Position mit abgesenkter Schuhferse;

Fig. 1.b

schematische Seiten-Teilansicht einer ersten Ausführungsform der erfindungsgemässen Skibindung, in einer Position mit angehobener Schuhferse;

Fig. 2

schematische Seiten-Teilansicht einer zweiten Ausführungsform der erfindungsgemässen Skibindung;

Fig. 3

schematische Seiten-Teilansicht einer zweiten Ausführungsform der erfindungsgemässen Skibindung.

The drawings illustrate a preferred embodiment of the present invention.

Fig. 1.a

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

Fig. 1.b

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

Fig. 2

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

Fig. 3

schematic partial side view of a second 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

FIG. 1 shows a ski binding according to the invention with a curved body 280. As a joint with more than just one (rotation) degree of freedom between one Shoe carrier 260 of the shoe fastening means and the ski top 210 has the in Figure 1 illustrated embodiment of the invention a double joint Device on. The carrier 260 with a front sole hold-down 270 is around a first transverse axis 230 pivotally mounted on an intermediate member 240, the Mounted on a fastening part 250 so as to be pivotable about a second transverse axis 220 is. The fastening part 250 is attached to the ski with screws 252, 254 (not shown) attachable. The plate-shaped fastening part 250 is behind the bearing for the second transverse axis 220, viewed in the longitudinal direction of the ski, extended. The The top of this extension forms the counter surface 251, on which the further Rolled below convex curved surface 281 of the curve body 280 becomes. At the back, essentially below the ball area of the on the Shoe carrier 260 of attached ski boots (not shown) is on attachment part 250 a rib 290 extending transversely to the longitudinal direction of the ski is formed.

A curved 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 a surface 281 which is convexly curved in the longitudinal direction of the ski and which defines a rolling / rolling curve, the surface being transverse to the longitudinal direction of the ski is just trained.

In the embodiment of the invention shown in FIGS. 1.a and 1.b Curve body 280 (and thus the carrier 260) behind the position of the tip of the shoe ski boots fixed on the shoe rack 260, in the ball area, around the Transverse axis 230 pivotally mounted on the intermediate member 240. The Binding components are arranged in such a way that the course of the joint movement between the shoe carrier 260 or the shoe and the ski when lifting the Shoe heel is done in three phases. In Figure 1.a the bond is in the position with lowered shoe heel, shown at the beginning of the first phase. In the first The phase of the binding-joint movement becomes the curved body 280 on the rib 290 rolled, the distance between the heel of the shoe and the contact point 285 of the curve body 280 (point of contact between the convex surface 281 and Counter surface 251) remains essentially constant. In the first phase the Skiers exert the greatest strength over the shoe and the bond on the one with his Weight loaded skis off, so there is a small distance between the shoe heel and the support point 285 of the cam body and thus a small articulated lever from Advantage.

In the second binding movement phase, when lifting further, the Heel of the curve body 280 with its convexly curved surface 281 the counter surface 251 rolled. Due to the articulated attachment of the The curve body 280 on the intermediate member 240 does not consist of rolling pure, sliding-free rolling movement, but from a combination of Rolling / rolling and sliding. This rolling movement increases the distance between the heel of the shoe and the contact point 285 of the curve body 280 in the second phase continuously by the contact point 285 of the curve body 280 continuously moves forward on the counter surface 251. In the figure 1.b shown second phase take the skier on the ski forces to be exerted continuously. The second phase comes with the achievement of a Attack (not shown) completed, the continuation of the Pivotal movement around the transverse axis 230 blocked.

If the joint movement between the shoe and ski continues in the same direction, this is the first transverse axis in a third phase of the movement of the binding joint 230 blocked by the stop, whereby the joint movement only from one There is pivoting movement about the second transverse axis 220. At the end of the third phase The touring skier shifts his weight to the other ski and he starts the one in the essential to retrace skis resting on the snow up to this point. When pulling and then pushing the relieved ski forward the shoe or the shoe fastening means with respect to the ski in an inverted manner Joint movement returned to the starting position.

In the embodiment shown in Figure 2, the ski binding instead of above-mentioned double joint with two transverse axes 220, 230 a rotary push joint 300, 305, 330. The curved body 380, which as an integral part of a ski boot (not shown) receiving carrier 360 with a front Sole holding-down device 370 is designed to be pivotable about a transverse axis 330 a mounting part 300 stored. The attachment part 300 is on the top of the ski 310 attached to the ski. The transverse axis 330 is substantially straight along a straight line vertically arranged guide slot device 305 slidably. When lifting the heel of the shoe and thus the wearer 360 at its rear end (not is shown) the cam body 380 and thus the carrier 360 about the transverse axis 330 pivoted, which at the same time in the guide slot device 305 is moved below. At the same time, the curve body 380 with its convex Surface 381 rolled on the counter surface 351, the contact point 385 of the Curve body 380 (point of contact between convex surface 281 and Counter surface 251) moves forward in the longitudinal direction of the ski. The passing on between the convex surface 281 and the counter surface 251 in FIG illustrated embodiment combined with sliding.

In the embodiment shown in Figure 3, the sliding through one of the convex curved surface 481 corresponding curved joint 400, 405, 430 avoided. In contrast to the straight-line guide slot device 305 of the above The embodiment described has that attached to the ski top 410 Fastening part 400 a curvilinear guide slot device 405 for guiding the Transverse axis 430. The curvature of the guide slot device 405 is so on Curvature of the convexly curved surface 481 of the curve body 480 matched that when rolling the convex surface 481 on the counter surface 451 no sliding occurs because the transverse axis 430 through the guide slot device 405 is guided downwards and forwards at the same time.

Instead of the guide slots 305, 405 shown in Figures 2 and 3 can in alternative embodiments, other suitable guiding devices are used, the suitable displacement of the pivot axes 330, 430 guarantee.

In a further embodiment of the, not shown in the drawings Invention is the curve body not on the shoe fasteners, but on the Ski top arranged with the convex curved surface on the top of the curve body. The rolling process is then convex between them curved surface and a counter surface instead, either on the bottom the shoe attachment or the ski boot is lying.

In a further variant, not only is the curve body, but also that Counter surface curved in the ski length direction. The passing curve then results from rolling one curved surface onto another curved surface Surface.

As an alternative to the shoe fasteners shown so far Embodiments comprising a shoe rack and a sole hold-down In a further embodiment of the invention, the shoe fastening means e.g. bearing bushes embedded in the ski boot sole, which corresponding pins on the intermediate link can engage.

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 be provided. For example, a below the curve body Rollslide or a slide can be provided, the top of which Counter surface forms, on which the convex surface of the curve body without sliding is rolled, the roller carriage moving at the same time. Instead of one A series of rollers can also be provided on the counter surface, on which the cam body is rolled. As a variant, the roles can also be arranged along the convex curved curve line of the curve body and be rolled on the non-displaceable counter surface.

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 sliding between the convex curved surface of the cam body and the counter surface is when rolling between the curve body and the counter surface Curve body slidable along the thrust joint.

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

Furthermore, an embodiment of the invention is possible in which the transverse rib instead on the counter surface opposite the curve body, on the curve body is molded on itself. The function and purpose of the transverse rib, namely the provision a first phase for the movement, remain essentially the same.

Another advantage arises when using a device according to the invention Tour binding in conjunction with a climbing aid that is common for tour bindings. There the binding according to the invention already for a substantial relief of Ascent, especially in steep terrain, must be combined with the climbing aid used in the binding according to the invention in comparison with climbing aids well-known touring bindings support the shoe heel less to the To achieve the same relief when climbing. Thus, in connection with the Smaller and therefore lighter climbing aids can be used according to the invention than with conventional touring bindings.

In summary, it can be stated that the invention binds touring is provided that is ergonomic, the anatomy of the human body appropriate 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 soft-soled running shoe.

Claims (9)

Ski binding with shoe fasteners (260, 270; 360, 370; 460, 470), the articulated on at least one transverse axis (230; 330; 430) on the ski are attached, characterized by a joint movement between the Shoe fasteners (260, 270; 360, 370; 460, 470) and the ski controlling Curve body (280; 380; 480) with at least one area in Ski longitudinal direction convex curved surface (281; 381; 481). Ski binding according to claim 1, characterized in that when lowered Shoe the body (280; 380; 480) in an area between the shoe and Ski, viewed in the longitudinal direction of the ski, is arranged in front of the center of the boot. Ski binding according to claim 1 or 2, characterized in that the Curve body (280; 380; 480) is designed and arranged so that at least in a phase of articulation of the cam body (280; 380; 480) see above is passed on that the distance between the heel of the shoe and the Contact point (285; 385; 485) of the curve body (280; 380; 480) at increasing elevation of the shoe heel increases. Ski binding according to one of claims 1 to 3, characterized in that the Curve body (280; 380; 480) on the shoe fastening means (260, 270; 360, 370; 460, 470) and / or the binding parts attached to the shoe is arranged that when the shoe is lowered, the convex curved surface (281; 381; 481) lies on the underside of the curve body (280; 380; 480). Ski binding according to claim 4, characterized in that on the ski and / or a rib (290) transverse to the on the binding parts attached to the ski The longitudinal direction of the ski is arranged under the cam body (280) in such a way that at least in one phase of the articulation of the cam body (280) on the Rib (290) is rolled, the distance between the heel of the shoe and the point of contact (285) of the curve body (280) with increasing elevation the shoe heel remains essentially constant. Ski binding according to one of claims 1 to 5, characterized in that the Curve body (280; 380; 480) as part of the shoe fastening means (260, 270; 360, 370; 460, 470). Ski binding according to claim 6, characterized in that the Shoe fastening means (260, 270; 360, 370; 460, 470) a carrier (260; 360; 460) on which the ski boot can be fastened, the cam body (280; 380; 480) is designed as the front part of this support (260; 360; 460). Ski binding according to one of claims 1 to 7, characterized in that the Shoe fastening means (260, 270) about a first transverse axis (230) are pivotally mounted on an intermediate member (240), which by a second transverse axis (220) is pivotally mounted on the ski. Ski binding according to claim 7 and 8, characterized in that the first Transverse axis (230) as a pivotable connection between the intermediate link (240) and the cam body (280) is formed.

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