EP1790244B1 - Boot for a binding - Google Patents

Abstract

The shoe has an outer shell (120) for receiving and holding a foot, and swivellable about a geometrical rotation axis (A). The rotation axis is arranged to carry back from a front point of the outer shell, such that front and rear part spaces are defined by a longitudinal position of the rotation axis in an interior for receiving foot in the outer shell. A partial plunging of the front part space of the outer shell takes place in an interior (118) of a coupling part during lifting-up of a heel region (125) from the coupling part in a rotation phase of a jumping-movement. An independent claim is also included for a system consisting a shoe and a binding.

Description

Technical area

The invention relates to a shoe for a binding, in particular a ski boot, with an outer shell for receiving and holding a foot and a coupling part for securing the shoe in the binding, so that the shoe is held in a shoe tip region and in a heel region on the coupling part of the binding can be, with the coupling part and the outer shell are movably connected to each other, so that the foot held in the outer shell can take off in the implementation of a walking movement together with the outer shell in a heel area of the coupling member and is lowered to this again, if the coupling part in the binding is attached.

State of the art

On the one hand ski boots should have a high rigidity not only against lateral bending, but also against forward bending of the upper shaft part of the ski boot, and on the other hand during a natural walking movement without skis or during a walking movement with skis, especially in the case of ascending the ski touring, the Skiers allow the greatest possible freedom of movement. Even when using ski boots as cross-country boots, there is a requirement that these should be pivotally connected to a ski in a front shoe area, where they must have a high torsional stability. In particular, when using a skating technique high stability against shear forces between ski and shoe is required because it can come in the repulsion movement to a large force effect. Another application of ski boots are telemark shoes. On the one hand, a telemark shoe should have a high degree of flexibility in a ball area of the shoe and, on the other hand, at the same time a high torsional stability should be ensured. In conventional telemark shoes these requirements usually require a special design of the sole of the telemark shoe, such as in the DE 10 2004 004 317 A1 (Rottefella AS ) a thinning of the sole of the telemark shoe in the ball area.

In earlier years, only a limited support of foot / lower leg was achieved with the leather shoes mainly made of leather due to the relatively small stiffness of the shoe leather. As a result, on the one hand part of the foot mobility required for walking with skis was already achieved by the flexibility of the ski boots themselves, on the other hand touring bindings could be used, which did not limit the flexibility of shoe upper and shoe sole. However, since the emergence of plastic ski boots, ski tour riders are no longer prepared to forego the much greater grip and thus improved skiing on the descent. Today, therefore, practically only plastic ski touring boots with a substantially stiff shoe sole and ski bindings suitable for such ski boots are available on the market. However, these ski touring shoes have the disadvantage that they natural movements, as they occur in a natural walking or climbing the ski touring, by the substantially rigid design of various shoe components complicate or even impossible. There are therefore various attempts have been made to unite the completely different requirements for walking and climbing and for skiing in ski boots.

In order to allow an approximately normal natural walking movement, as it is performed when walking on a base, for example, ski boots have been proposed, which have a base shoe with outsole and an additional removable ski sole (eg DE 3 417 503 A1 ; Dolomite, SpA). In order to extend the freedom of movement of the ski boot wearer during the ascent during ski tours, various improvements have been proposed for a ski boot. In the DE 3 427 612 A1 (Kastinger sports shoe GmbH), for example, a multi-shell touring ski boot is proposed, in which a relative to a foot in the ankle pivotally hinged shaft shell can be locked for departure to the foot in a fixed position, whereas a similar lock in the EP 1 332 689 A1 (Calzaturificio SCARPA, S.p.A.) allows a determination of a sheath in different positions. In the DE 343 176 (Kastinger sports shoe GmbH), however, a ski boot is presented with a shaft shell, which is separated by a front and a rear opening in two side panels. In this case, the openings can be closed or opened independently of one another with a single pull-strap, thus making it possible to adjust the freedom of movement of the skier according to the different requirements.

Although these improvements are able to make the ski boot more comfortable, they do not solve fundamental problems of natural movements that are to be performed in a stiff shoe. In particular, the problem of movement during ski touring arises during ski tours. While at the downhill, the ski boot should be rigidly connected to the ski in order to give the skier good control over the ski, it is necessary for the ascension that the skier's foot can be pivoted in relation to the ski. Usually so-called touring ski bindings are used. Tour ski bindings usually have at least two functional states, namely a downhill position and a climbing position. In the downhill position, the ski boot is essentially rigidly connected to the ski. In the ascent position, however, is the Ski boot with respect to the ski about the horizontal transverse axis between a starting position and a plurality of pivot positions pivotally. In the initial position, the heel area of the ski boot is arranged close to the ski upper side and lifted off the ski upper side in the swivel positions. In the ascent position is thus adapted to the ascent movement pivoting movement between the ski boot and the ski allows.

Such a touring ski binding, which in particular also fulfills all safety requirements of modern safety ski bindings, is disclosed in US Pat WO 96/23559 (Fritschi ). It has a shoe wearer on which a front sole holder provided with a front sole holder and a heel holder are provided with heel cheeks, wherein the shoe wearer is pivotable in the region of the ski boot tip about a horizontal transverse axis with respect to the ski.

However, since an ascent movement is made possible only by a touring ski binding, the skier is forced to purchase another pair of skis with a touring ski binding in addition to a possibly existing pair of skis on which a piste binding is attached. This results in a large cost burden for the skier, which on the one hand goes on ski tours and on the other hand also runs on slopes ski. The attempt to provide a conventional ski binding by additional means with the properties of a touring ski binding, is in the DE 2 064 754 (Heili ). It is described therein a plate-shaped adjusting device, which is used between a ski boot and a conventional ski binding. In the sense of known plate bindings, the adjusting device can be introduced into the binding and then makes it possible to pivot the ski boot fastened to the plate via an axle on the ski boot tip. When performing a natural walking motion without skis on a base prevents a plate that is connected to the ski boot, but an ergonomic movement, whereby the above-mentioned fundamental problems with natural movements continue to exist.

Furthermore, when going on ski touring in general there is also the problem of a relatively high weight of the ski touring equipment that the skier has to carry with him. Such touring ski equipment includes, for example, ski boots, skis and touring ski bindings. While ski boots and skis are essentially similar to ski equipment, the touring ski binding differs from a ski binding by additional mechanical elements, which are due to the advanced function of touring ski binding. The additional mechanical elements include, for example, a mechanism that allows the pivoting of the binding relative to the ski, and a locking device, which allows the switching between the downhill position and the ascent position. There are also redundant elements, the redundancy usually resulting from the combination of various system components such as ski boots and ski binding. For example, a modern ski boot has a rigid ski boot sole and a modern ski binding on a ski boot, both of which provide each already stable in itself longitudinal connection between a front and a rear binding jaws.

One way to reduce the weight of touring binding is, for example, in a version in special lightweight construction and the use of lighter materials, but which are usually expensive. Another way to reduce weight is to simplify the design of the mechanical elements. In particular, different functions can be combined on a single functional element or redundant elements can be removed. By reducing the number of functional parts not only the overall construction is simplified, but in particular, the weight of the entire device can be reduced. Such a multi-functional design of a mechanical element of a touring ski binding is for example from EP 0 724 899 A2 (Fritschi ) known. There, a locking lever is described, which on the one hand allows the locking of the ski binding in a downhill position and on the other hand forms a climbing aid of the touring ski binding as a pivotable support lever. In comparison with the lightest touring ski bindings, however, such a touring ski binding is difficult and causes an unnecessary weight load of the skier.

Various ski boots known from the prior art therefore combine a climbing function with the function of a ski boot. The CH 679 108 A5 (Weber ) describes, for example, a ski boot, which can have different functions through interchangeable shoe soles, in particular also a rise function. A Another shoe with integrated ascent function is in the EP 0 015 862 A (Blanc ). This describes a shoe with an outer shell and a hinged rigid shoe sole to which the shoe can be kept in a bond. The outer shell is pivotable about a transverse axis at the shoe tip opposite the sole.

Also the US 4,920,665 A (Pack et al. ) describes a ski boot with ascent function. This ski boot includes a stiff heel cup, which is pivotable about a transverse axis in the ball area opposite a stiff toe shell. The toe cup is connected by a flexible area and a joint with the heel cup. A heel hanger surrounds the heel shell in the shape of a frame and is articulated to the toe shell via a joint. The result of the joint is that actuating blocks should prevent overstretching between the heel strap and the toe cap. At the heel cup, a locking device is provided, which allows a determination of the heel cup relative to the heel strap and the toe shell. Further, the shoe has a sole, which is composed of areas of the heel cup, the toe shell and the heel strap.

Such shoes with ascent function for touring but usually have the disadvantage that they have a relatively low walking comfort.

Presentation of the invention

The object of the invention is therefore to provide a shoe belonging to the aforementioned technical field for a binding, which is a versatile and easy alternative to previous shoes for bindings creates and has a high walking comfort.

The solution of the problem is defined by the features of claim 1. According to the invention, the shoe for binding comprises an outer shell, which receives the foot, holds and completely encloses and attached to the outer shell coupling part. The coupling member serves to secure the shoe in a binding so that the shoe can be held in a shoe tip region and a heel region of the binding. The coupling part extends from a front longitudinal end of the ski boot to a rear longitudinal end, wherein the coupling part and the outer shell are movably connected to each other, so that the feet held in the outer shell stand out in a heel area when carrying out a walking movement together with the outer shell and again can lower when the coupling part is fixed in the binding. The coupling part is formed like a frame, surrounds the outer shell on the outside frame-like on both sides and is rigid.

Unless otherwise indicated, walking motion means a sequence of motion in which the heel area of a foot is lifted off a pad and lowered back onto it, while the toe area remains substantially stationary on the pad as e.g. when ski touring occurs. However, a "natural walking motion" refers to the movement of rolling a foot over the ball and toes as it occurs in the walking mode of walking.

Shoes which can be kept in a binding are used in particular for skiing or other sliding sports on snow. Below, therefore, the invention is carried out without restricting the generality of the example of ski boots.

The outer shell of a shoe according to the invention is connected to the coupling part such that release of the connection by the skier is not provided. In contrast to conventional ski boots, the outer shell can thereby be moved relative to the coupling part in a walking motion such that the outer shell and a foot held by the outer shell can be lifted off the coupling part in a heel region and lowered thereon again. Since the Ski boot is held by a ski binding on the coupling part, so that the walking movement can be carried out even if the ski boot is mounted in a conventional ski binding, which does not have the ascent function of a touring binding. In this case, the coupling part of the ski boot is connected to the ski by the ski binding attached to a ski and remains essentially at rest during the execution of the walking movement relative to the ski. A ski boot according to the invention thus makes it possible to carry out a sequence of movements which corresponds to the walking movement during ski touring without a touring ski binding being used.

In contrast to conventional ski boots, the outer shell itself has no molded-on coupling elements for bindings. That without the movably mounted coupling part, the outer shell would not be usable in a binding.

It is preferably provided that the outer shell of a ski boot according to the invention has a mobility relative to the coupling part, so that a foot held in the outer shell can be brought into a position in which the sole is pivoted by an angle of at least 90 ° relative to a position in which the outer shell is completely lowered onto the coupling part. In particular, for safety reasons, a mobility is advantageous which, when the ski boot is fastened in a ski binding and has a foot held in the outer shell, allows a skier's knee belonging to the foot to be lowered onto the ski surface.

The outer shell of the ski boot can be one or more parts, wherein in the case of several shell parts, these can also be made of different materials or the individual shell parts themselves may have different materials. Preferably, the parts of the outer shell are made of plastic. The shell parts can be connected to each other in various ways, such as by cast-in or welded to the shell parts elastic materials, elastic bellows or joints. Furthermore, the outer shell can accommodate a padded inner boot, as is known from conventional ski boots. In this case, the liner can be removably present in the outer shell and, for example, one at an access opening of the outer shell, through which the foot into the outer shell can be introduced, have protruding upholstered collar. It goes without saying that the inner shoe can also be made of several parts and made of different materials. The skier's foot is held by the outer shell (or in the padding of the inner boot), which essentially completely encloses the foot. The outer shell can have openings for weight reduction or for other reasons. The outer shell may also have a rigid sole, which is preferably formed but flexible.

The coupling part of the ski boot extends from a front longitudinal end of the ski boot to a rear longitudinal end, wherein the longitudinal direction of the ski boot is defined by the direction from the toe to the heel of a foot existing in the ski boot. The coupling part is rigid, wherein it has in particular a high torsional and bending stiffness. Preferably, the coupling part is made of plastic, wherein due to large stability requirements, e.g. Composite materials such as carbon fiber or glass fiber reinforced plastics can be used. But it is also conceivable that in addition to plastics and other materials such. Metals are used. The coupling part can also comprise several parts, which are made of different materials and interconnected by connection techniques that have great stability.

Overall, the load, e.g. be moved by a ski tour operator must be significantly reduced. There are only a few additional parts on the ski boot necessary to achieve the extended functionality of a ski boot according to the invention. The weight of a ski boot according to the invention is therefore not very different from the weight of a conventional ski boot. The ability to bring an existing ski equipment even when ski touring application, thus eliminating the high cost of additional ski tour equipment in a ski boot according to the invention. This creates a cost-effective alternative to conventional ski touring equipment.

Embodiments of a ski boot according to the invention are also conceivable, which can be used, for example, in cross-country skiing or telemark skiing.

Due to the inventive execution of a ski boot, the required stability of a cross-country boot regardless of the pivotability of the shoe, or a part of it, can be achieved. In a correspondingly lightweight design, a ski boot according to the invention is therefore also suitable for use in cross-country skiing. In this case, the coupling part can be made much lighter and less stable than in an alpine ski boot, since the loads are significantly lower than in an alpine ski downhill. Also, in the case of a cross country boot, the outer shell may be smaller, e.g. reaching only to the simmer, and be elastic and a locking device or a damping device (see below) are sometimes superfluous. Furthermore, in contrast to conventional cross-country boots and bindings, a ski boot according to the invention makes it possible to shift the axis of rotation into a ball area of the foot, which also allows a more ergonomic movement during cross-country skiing. It is e.g. conceivable that by an appropriate design of attacks and counter-attacks on the outer shell and the coupling part, an optimal "power transmission point" can be adjusted during the cross-country movement, in which the pivoting movement allows maximum power transmission from the foot to the ski.

Likewise, a ski boot according to the invention can also be used as a telemark shoe. By the pivotable coupling of the outer shell with the coupling part a good pivoting and high torsional stability is achieved without further requirements to put on the ski boot sole. In a possible embodiment as a telemark shoe, a ski boot according to the invention may additionally be provided with a return device, such as e.g. a return spring or an elastic band be provided, wherein the restoring device pulls or presses the heel region of the outer shell on the coupling part.

In this case, it is conceivable, for example, that the same embodiment of a shoe according to the invention is used as a touring ski boot, ski boot ski boot, cross-country ski boot and as a telemark shoe. Other applications include, for example, a shoe for ski jumping, snowboarding or for cross-country skiing ("cross-country referred to in this case, a hybrid sport between cross-country skiing and telemark skiing).

In a preferred embodiment of a shoe according to the invention, the outer shell is connected to the coupling part in such a manner that the heel area of the outer shell can be lifted or lowered onto the coupling part both by a rotational movement about a geometrical axis in a walking motion, as well as by deformation of at least one elastic region of the outer shell. The walking movement can be divided into several phases. It is e.g. conceivable that a walking movement is divided into two phases: In a first phase of the walking movement, the outer shell is rotatable in a certain angular range about a geometric axis of rotation which is transverse to a longitudinal direction of the coupling part, wherein the longitudinal direction of the coupling part through the toe and the heel area of the shoe is defined. The geometric axis of rotation of the rotational movement is substantially parallel to a sole of an existing foot in the outer shell and lies in such a way in a front half of the shoe that the geometric axis of rotation passes through the outer shell of the shoe. In particular, the axis of rotation is set back relative to the toe and preferably lies in a ball region of a foot present in the outer shell above a sole of the shoe. Due to the inventive construction of the shoe, the geometric axis of rotation can lie in the entire region of the front half shoe and thereby the position of the axis of rotation can be adapted to the specific needs of the shoe or the sport exactly. It is e.g. conceivable that the geometric axis of rotation in a version as touring ski boot further away from the toe than in a design as a cross-country boot. This is e.g. ensures that the power transmission is optimized by the cross-country skier on the ski in cross-country boot, while the touring ski boot high comfort during the implementation of the walking movement is achieved.

In the first phase of the rotational movement, the lifting off of the heel region is then achieved by preferably the entire outer shell being rotated about the axis of rotation. The angular range of the rotational movement about the axis of rotation can then be limited, for example, by stops which are formed on the outer shell and abut corresponding counterstops on the coupling part. However, a limitation of the first phase can also be achieved in another way, eg by the Outer shell slides on a ramp-like surface on the coupling part, thereby limiting the rotational movement we achieved. In another embodiment, however, the rotational movement can also not be limited by means on the ski boot, but can be achieved, for example, by exceeding a predetermined threshold value of the force which must be expended for the deformation of the elastic region.

Such a walking motion phase corresponds to first lifting a heel area of a foot while performing a natural walking motion on a pad, with the heel area being rotated about the ball joint of the foot.

In a second phase of the walking motion, for example, a front area of the outer shell then remains at rest relative to the coupling part, while the heel area of the outer shell can be moved further. This is achieved, for example, by virtue of the fact that different rigid regions of the outer shell are elastically connected to one another. When lifting the heel portion of the outer shell of the coupling part can then be moved, for example, one of the shell parts, while another shell part, which is elastically connected to the moving shell part, relative to the coupling part remains at rest. The shell part of the outer shell, which is at rest in the second phase relative to the coupling part, has, for example, the stops, which limit the angular range of rotation in the first phase by abutment against counterstops of the coupling part and thus the transition of the first phase in the second Initiate phase of the walking movement. In this case, however, no limiting means must be present on the ski boot, but the transition from the first phase to the second phase can also be caused by the changed force of the foot during the execution of the walking movement. Due to the presence of an elastic region, the outer shell is deformable from a neutral position to a bent position, ie bendable, compressible and / or stretchable. During the lifting of the heel region, the elastic region is then compressed and / or bent. However, the elastic region can also be designed such that it is also stretched at the same time. As a result, a leg present in the outer shell can also be bent. Such a bending phase also occurs when performing a natural walking motion, when The heel area of a foot, after it has been lifted from a base, is raised further and the instep of the foot bends. By appropriate design of the elastic region on the ski boot so that the mobility of the ski boot can be adapted to the respective requirements.

When re-lowering the heel area on the coupling part of the elastic region is then bent back and / or stretched or compressed. If the elastic region has again reached the neutral position, the lowering movement merges into a rotary movement, thus allowing a complete lowering of the heel region of the outer shell to the coupling part.

It is understood that in the entire walking movement also a superposition of the two movement modes, rotational movement and bending movement can occur. Thus, the two modes of motion need not be strictly separable into two consecutive phases, but may occur simultaneously. It is also conceivable that the walking movement not only comprises two phases, but is composed of a plurality of phases, which have different proportions of rotational and bending movement. Furthermore, more than just one elastic region can also be present on the outer shell, as a result of which the outer shell can be deformed in various areas. Elastic areas can be formed above, below or laterally of a foot existing in the ski boot. If a plurality of elastic regions are present, it is then also conceivable for one region to be compressed, while another may be compressed, for example. is stretched and both can be bent at the same time. Thus, an optimal adaptation of the flexibility of the outer shell is achieved at the foot of the skier.

The elastic regions of the outer shell may consist of elastic materials or bellows, which are shed for example with different shell parts of the outer shell. In this case, the elastic regions can be configured inhomogeneous, such that, for example, they have a gradient in the elasticity. This ensures that in different phases of a bending movement different areas of the elastic regions are deformed. For example, the deformation of a region with low elasticity can only begin when another region of high elasticity is already completely deformed. Are the areas of different Elasticity in different areas of the ski boot, so it can be achieved that, for example, depending on the position of the outer shell during the implementation of the walking movement, another area of the ski boot is deformed. Further, it is also conceivable that the elastic connection of the different outer shell areas is achieved by springs and / or joints, which are mounted in a corresponding arrangement on the outer shell and connect different shell parts of the outer shell together.

As an alternative, it is conceivable to connect the outer shell to the coupling part, which permits only a rotational movement about an axis of rotation, e.g. there are no stops limiting the walking movement to an angular range, and the entire walking motion is a rotational movement about a geometric axis of rotation. Likewise, alternatively, the entire walking movement can be achieved by a partially elastic design of the outer shell, wherein e.g. a front portion of the outer shell is fixedly secured to the coupling portion, the front portion is connected to the heel portion of the outer shell via an elastic portion, and the heel portion is detachable from the coupling portion by bending and compressing or stretching the elastic portion from the coupling portion. In the case of a pure bending movement, no geometrical axis of rotation must be defined for the walking movement about which the outer shell is pivoted relative to the coupling part. By bending and stretching or compression of the elastic portion of the heel area is then lowered back onto the coupling part.

In order to make the walking movement more ergonomic, a further embodiment of a shoe according to the invention has a connection of the outer shell to the coupling part, which is designed such that, in addition to the rotational movement about the first geometric axis of rotation, a further rotational movement about a second geometric axis of rotation is provided second axis of rotation is different from the first axis of rotation. The second geometric axis of rotation is parallel to the first axis of rotation but spaced therefrom. The rotational movement about the second axis of rotation is preferably provided in a further phase of the walking movement. The further phase is conceivable in the sequence of the walking movement as a third phase following the first two phases described above.

After the elastic portion of the outer shell has been deformed in the second phase so that no further compression or bending is possible, the bending movement of the second phase is in the rotational movement of the third phase. It should be noted that the third phase can also be initiated if the elastic region is not completely deformed. The second axis of rotation is preferably closer to the ski boot tip than the first geometric axis of rotation. Preferably, in the third phase of the walking movement, a bending movement is additionally carried out, which brings the outer shell from the bent position to the neutral position. As a result, in the third phase, the foot present in the outer shell can, on the one hand, be rotated about the second axis of rotation and, on the other hand, stretched at the same time. Such a sequence of movements corresponds to the final phase of rolling a foot in a natural walking motion, in which the foot unwinds on the toes from a base and is thereby stretched in the ball area. In this case, the second axis of rotation preferably lies in a toe area in order to allow a rotational movement which corresponds to a rotation about the toe joints.

In this case, it is also conceivable that the three phases do not occur in the order described above, but that e.g. the second phase comes first. Likewise, it is also conceivable that all three phases occur superimposed and that the entire walking movement does not result from a clearly separable sequence but from a coexistence of the three phases. Further, the walking motion may include more than three phases, wherein the different phases are characterized by different proportions of rotational movement about the first axis of rotation, rotational movement about the second axis of rotation and bending movement.

Alternatively, the entire walking movement can also be performed by a pure bending or a pure rotational movement about only one geometric axis of rotation or by a combination of the two. Also, an embodiment of the compound is conceivable in which the walking movement is achieved only by rotational movements about two different geometric axes of rotation and no bending movement occurs.

In a further preferred embodiment of a shoe according to the invention, the outer shell is preferably connected to the coupling part via a rotary joint, wherein the outer shell has at least one in the region of the rotary joint having elastic portion. The hinge is designed as two bearings, which are arranged coaxially with the first geometric axis of rotation on both sides of a foot held in the outer shell on the outer shell of the shoe and connected to the coupling part. In addition, the outer shell on an upper side in a region above the first axis of rotation on a region in which it is elastically deformable. The outer shell preferably has a toe shell comprising the toes and an instep shell which spans the instep and is connected to one another by an elastic region at the transition from the instep to the toes. The instep tray can be designed in such a way that it not only straddles the instep, but also completely or partially encloses the foot in a metatarsal area, ie in the area of the instep from the tibial insertion to the toe attachment. The instep shell and the toe shell can each comprise a plurality of shell parts.

The size of the elastic region should be chosen such that a flexibility of the outer shell is ensured, which allows at least a substantial bending of the foot in the ball area. For improved stability and better definition of the bending movement, the toe shell and the instep shell can be pivoted together. In this case, the pivot axis of the joint between the toe shell and the instep shell coincide with the first geometric axis of rotation. This can be achieved, for example, by virtue of the fact that the hinges which connect the outer shell to the coupling part are formed on the toe shell and at the same time the instep shell is articulated on these pivot joints. The elastic region extends above the foot at least from one of the swivel joints to the other swivel joint. It must then be formed on the opposite side with respect to the rotation axis of the outer shell, a corresponding elastic region on which the outer shell is stretchable or stretchable. But it is also conceivable that the instep tray is pivotally connected to the toe cup with respect to a pivot axis which does not coincide with the first axis of rotation. In this case, the elastic region should be formed on the outer shell such that a pivoting of the instep tray relative to the toe shell around the pivot axis is made possible.

In an alternative, the outer shell may be fixedly connected to the coupling part, i. there are no hinges, and the walking motion is only possible by a partially elastic training of the outer shell. Likewise, only hinges can be present without the outer shell is bendable and the walking motion is achieved by a pure rotational movement.

In a further embodiment of a shoe according to the invention, the coupling part of the shoe is designed in the shape of a frame and encloses the outer shell like a frame. The coupling part extends from a rear longitudinal end of the shoe to a front longitudinal end and at a front and at a rear longitudinal end in each case a coupling means such. a projection on which it can be held by a binding. At the coupling part in this embodiment there is an opening which extends perpendicular to the longitudinal direction of the coupling part through the coupling part and which is surrounded by the coupling part like a frame. The opening forms two openings on the coupling part which lie substantially parallel to a surface to which the binding is attached. In this case, a lower opening is closer to the surface than an upper opening. The openings do not have to correspond to the entire cross section of the opening. In particular, the lower opening may be smaller than the cross section of the opening. The outer shell of the shoe is arranged in the opening of the coupling part such that the coupling part comprises the outer shell like a frame. In this case, the outer shell passes through the opening and protrudes partially at both openings of the opening. An underside of the outer shell may partially pass through the lower opening while an upper side of the outer shell substantially completely passes through the upper opening. The coupling part surrounds the outside of the outer shell on both sides of the foot.

In a further embodiment, the coupling part is elongated and cup-shaped as a sole shell, which has a continuous underside. The sole shell extends from a rear longitudinal end of the shoe to a front longitudinal end and has at its longitudinal ends in each case a coupling means on which it can be held by a binding. The bottom of the Sole shell is facing a surface that is provided with the binding. The sole shell encloses a cavity, which is open on one of the bottom opposite outer side of the sole shell. The sole shell may have in areas which are not on the bottom, also breakthroughs for weight reduction and, for example, for removal in the sole cup accumulating snow. The outer shell is arranged in the cavity of the sole shell. In this case, the outer shell protrudes from the opening of the cavity beyond the sole shell and the opening of the cavity lies substantially parallel to the sole of a foot present in the outer shell.

Alternatively, the coupling part may also be e.g. be formed rod-shaped as a hollow profile and having at both longitudinal ends coupling means on which it can be held in a bond. The outer shell is then arranged with respect to the surface above the coupling part.

While a walking movement is necessary, for example, when ascending ski touring or cross-country skiing, the requirements for a ski shoe are quite different for Alpine skiing. In a downhill position, for example, the shoe should establish a rigid connection with the ski so that the skier has good control over the ski. Therefore, in a further embodiment of a shoe according to the invention, a locking device is provided which allows a locking of the outer shell relative to the coupling part. In particular, a lock in a downhill position is possible in which the heel portion of the outer shell is completely lowered onto the coupling part and firmly connected thereto. To carry out a natural walking movement, ie walking without shoe fastened in a binding, the shoe is also lockable in a walking position, wherein the coupling part is firmly connected in the walking position with the outer shell and the outer shell is completely lowered in the walking position on the coupling part. The walking position is preferably identical to the downhill position. By fixing the coupling part to the outer shell, a walking movement can be performed while walking without skis, in which the shoe is unrolled on a base.

It may also be possible to lock the outer shell in other positions, wherein the other positions of the shoe are characterized by different distances, which has a heel region of the outer shell of the coupling part. The lock may e.g. be achieved by a bayonet-type rotary closure, which is present in the heel area or in the ankle area of the shoe on the coupling part. The rotary closure then engages in a corresponding counterpart or in a plurality of corresponding counterparts, which are formed at different distances from the heel region of the outer shell thereto.

However, the locking device for locking in the downhill position may e.g. also by a lockable, band-shaped device such as e.g. a hook-and-loop tape or a buckled band which comprises the outer shell in an instep area and is fastened in one ankle area of the shoe with one end to the coupling part and connected to the other end e.g. by a buckle such as e.g. Of conventional ski boots is known, is releasably attached. In the state fastened to the coupling part of the band-shaped device, the outer shell is then attached to the coupling part, e.g. locked in a lowered position.

Preferably, the locking device is formed by a pivotable lever, which is connected to the coupling part, e.g. is articulated via an axle body. The pivotable lever can on the shoe side a coupling agent such. have a projection which into corresponding counterparts on the outer shell such. Recesses can engage. The recesses are formed at different distances from the sole region of the outer shell and thus allow, depending on in which of the recesses of the projection is coupled, a Verrieglung the outer shell at different distances of the heel portion of the coupling part. It goes without saying that the projection can also be formed on the outer shell and the recesses can be present on the locking lever.

Alternatively, the shoe may also have no locking device. If a shoe according to the invention is used as a cross-country boot, a locking device is used sometimes superfluous and would only cause an additional weight load of the cross-country skier. Next there is also the possibility that in a novel shoe exclusively a lock in the downhill position is possible, if it is to be omitted for additional weight savings on the training of necessary for further locking positions parts on the shoe. Furthermore, the locking mechanism can also be present, for example, on one side of the shoe or in the ankle area on the coupling part. Alternatively, the locking mechanism can also be formed on the outer shell, wherein the coupling part then has the corresponding counterparts, in which the locking mechanism can engage.

In a further possible embodiment of a shoe according to the invention, a damping device is provided on the shoe. The damping device allows in at least one of the locking positions of the locking lever a resiliently damped pivoting of the heel portion of the outer shell relative to the coupling part. The damping device is designed such that in the damped or spring-loaded locking position pivoting of the heel portion of the outer shell to the damped locking position around is possible. However, the damping device can also be present for more than one locking position or for all locking positions. In particular, the damping is present in the downhill or walking position, in which the heel region of the outer shell is completely lowered onto the coupling part. Preferably, the damping device can be optionally switched on or off by a device. Further, the damping device can be designed such that the strength of the damping or the spring action is adjustable and, for. the weight of a wearer of the shoe can be adjusted.

In one embodiment of the shoe in which the locking device is formed on the coupling part, a possible embodiment of the damping device is possible by a partial embodiment of the counterparts of the locking device on the outer shell of an elastic material. When acting between the outer shell and the coupling part forces can then be absorbed in the elastic material of the counterparts. It can, for example, the above be described recesses lined by an elastic material. In another embodiment, however, the damping device may also be formed on the coupling part. It may, for example, the attachment of the locking mechanism on the shoe be elastic or spring-mounted, so that forces acting on the outer shell, are transmitted via the locking lever on the damping device. It is conceivable, for example, that in an embodiment in which the locking mechanism is articulated as a pivotable lever on the coupling part, the coupling part in a cavity has a spring which is coupled to the axle of the bearing of the locking lever such that the axle body in a small area in the direction of the lifting movement of the outer shell is guided resiliently displaceable. The spring may be connected, for example, via an opening in the cavity with an adjusting device, which allows the adjustment of the bias of the spring. Since the locking lever is coupled in a locking position on the corresponding counterparts with the outer shell, forces occurring between the outer shell and the coupling member can be effectively damped by the spring.

It is also conceivable that the damping device is present on the locking device itself. There may be e.g. Parts of the locking device to be configured elastically such that it allows damping of the forces acting between the outer shell and the coupling part. In the case of a pivotable locking lever, it is e.g. conceivable that the lever has a longitudinal cavity in which a spring is present, wherein the spring is coupled to an axle of the articulated bearing.

Alternatively, the shoe may have a locking mechanism without cushioning. In the locking positions then the outer shell is rigidly coupled to the coupling part and the forces occurring between the outer shell and the coupling part are transmitted directly and unabated.

In a further embodiment of a shoe according to the invention, the shoe has a support lever, which can be pivoted into the movement path of the unlocked outer shell. The support lever has at least one support for the Outer shell on. The support, which can be designed as a bearing surface, thereby supports the outer shell and thus forms a climbing aid by limiting the lowering movement of the heel region of the outer shell in the direction of the coupling part. Preferably, the region of the outer shell, which is supported by the support surface, is formed as a latching surface in the heel region of the outer shell. Likewise, the support lever is preferably formed in a heel region of the shoe and articulated pivotably about a bearing axis on the shoe. In a preferred embodiment, the support lever is mounted on the coupling part. Preferably, the support lever can be latched in this Einschwenkstellung and only by a certain predetermined force again from the Einschwenkstellung be brought out. During the lowering of the outer shell in the direction of the coupling part, the lowering movement of the outer shell is limited by abutting the locking surface on the support surface. In this case, the support lever z. B. also be articulated in an ankle region of the ski boot on the coupling part, wherein the locking surface is then formed on the outer shell such that when swiveled support lever, the support surface is in its path of movement.

Alternatively, the support lever can also be hinged to the outer shell. In this case, the latching surface is formed on the coupling part in a corresponding area. However, shoes according to the invention are also conceivable which have no support lever designed as a climbing aid and the heel region of the outer shell is always completely lowered onto the coupling part when carrying out the walking movement.

In a further embodiment, the support lever may also have two or more support surfaces each forming a climbing aid for the outer shell. The bearing surfaces are formed at different distances from the bearing axis of the support lever such that in respective pivot positions of the support lever each have a different support surface in the path of movement formed on the outer shell latching surface. Preferably, the support lever is in the pivot position, which corresponds to the respective climbing aid, locked.

In one embodiment of a shoe according to the invention with a locking device, the support surfaces forming the climbing aids can be attached to the locking device be educated. Preferably, the locking device is designed as a pivotable locking lever, which simultaneously fulfills the function of the support lever. Here, the pivotable locking lever is preferably also in the pivotal position, which corresponds to the respective climbing aid, locked.

In a preferred embodiment, the bearing surfaces are similar to those in the EP 0 724 899 B1 (Fritschi ) described rising support stepwise formed on the locking lever such that in different Einschwenkstellungen a respective other bearing surface is located in the path of movement of the locking surface. Likewise, however, the support surfaces forming the climbing aid can also be formed on a plurality of support levers, with another support surface being introduced into the path of movement of the latching surface by respective pivoting of the corresponding support lever (see, eg, FIGS US 5,318,320; Ramer ). However, other embodiments are conceivable in which the support lever is designed as a bracket. When in the AT 371 735 (Tyrolia ) described climbing aid, the climbing aid is designed, for example, as a telescopically extendable strap. In such an embodiment, the different bearing surfaces are achieved in the same Einschwenkstellung of the support lever. Different distances of the bearing surfaces of a ski surface are achieved by pulling the telescopic bracket. In one embodiment of the support lever as a bracket, the bracket can also be used as a locking device, for example by a notch is formed on the outer shell, in which the bracket can be hung and thus the outer shell is locked relative to the coupling member.

Alternatively, the support lever with the support surfaces but also as an additional part of a novel shoe with Verrieglungsvorrichtung be present. It can then z. B. the locking lever may be present in an ankle region, while the support lever is formed in a heel region.

In a further embodiment, a shoe according to the invention has an outer shell, which comprises a shaft shell and a foot shell. In this case, a foot held in the outer shell is arranged essentially in the shaft shell and the shell shell essentially encloses a part of the calf. The shaft shell is hinged to the foot shell in an ankle area and can thereby be pivoted against the foot shell. The joint is preferably arranged on the outer shell such that the articulation axis approximately coincides with the axis of rotation of an ankle joint of a foot present in the outer shell. This ensures that the wearer of the shoe can change the angle that is enclosed by the foot with an associated calf. A greater mobility of the calf to the foot, for example, allows a more ergonomic movement in the implementation of a walking motion during the ascent when ski touring. Even when carrying out a natural walking movement away from ski slopes, such increased freedom of movement is desirable.

In addition, in a further embodiment of a shoe according to the invention which has an outer shell which comprises a foot shell and a shaft shell hinged thereto, a locking device can be present on the shoe. The locking device makes it possible to lock the shaft shell in relation to the foot shell. Thus it is achieved that e.g. in a ski boot according to the invention during the downhill movement, the freedom of movement of the skier's foot is restricted and the foot or leg of the skier is more rigidly connected to the ski. This achieves an improved controllability of the ski. Likewise, an advantageous attitude of the skier can be supported by a detected shaft shell. The locking device may be e.g. be formed in a heel area or in an ankle area of the shoe. As locking devices are various devices for locking shell parts of shoes, as they are well known from conventional ski or hiking boots.

In an alternative, in the shoe, a shaft shell is rigidly connected to a foot shell. Furthermore, an embodiment of a shoe is also conceivable, which indeed has a pivotable shaft shell as part of the outer shell, but this can not be detected relative to the foot shell. Thus, a mobility of the leg relative to the foot is maintained, which may be desirable, for example, in a possible embodiment of a shoe according to the invention as a telemark or cross-country boot and a snowboard boot.

In one possible embodiment of a shoe according to the invention with a locking device and an outer shell, which comprises a foot shell and a shaft shell, the locking device is integrated in the locking lever. Thus, a weight reduction of the shoe is achieved because the locking device is not designed as an additional part of the shoe, but is formed by an already existing part. A locking device may be attached to the locking lever e.g. be configured such that the lever is in a first locking position in the departure or walking position of the shoe with a first coupling means on the one hand rigidly coupled to the upper shell of the outer shell and the other with a second coupling means rigidly to the foot shell. As a result, the shaft shell is detected in the downhill position relative to the foot shell. By pivoting the lever, the coupling of the first coupling means with the shaft shell can now be solved, wherein the coupling of the second coupling means remains with the foot shell. Thus, the shoe is still in the downhill position. However, the shaft shell is decoupled from the foot shell and thus pivotable about the joint. If the locking lever now further pivoted and thus solved the connection of the locking lever with the foot shell on the second coupling means, so the shoe is in the unlocked position in which an execution of the walking movement is possible. In this embodiment, the shaft shell is pivotable relative to the foot shell and not found in this embodiment.

As an alternative, the locking device is formed as a separate part of the shoe. It is e.g. conceivable that the locking device is designed as an additional lever on the shoe. This is e.g. achieved that the shaft shell can be determined independently of the locking of the outer shell relative to the coupling part on the foot shell.

In a further embodiment of a shoe according to the invention, the shoe has a tread, wherein the tread comprises differently curved sections which abut one another smoothly or edgewise or merge into one another. By a curved design of the tread of a ski boot according to the invention a more ergonomic walking movement can be achieved when walking without skis than in a conventional ski boot having a rigid flat sole. In the walking motion The shoe is placed on a pad with the heel first and then rolled from the heel to the toe tips. In a conventional ski boot with a flat sole essentially only two tilting movements are possible: on the one hand tilting over an edge at a heel-side end of the sole, and on the other hand tilting over an edge at the ski boot tip end of the sole. An ergonomic rolling movement is not possible here. However, a curved embodiment of a shoe sole, as is the case in the present embodiment of a shoe according to the invention, allows a continuous rolling of the shoe on a base. By different curvatures in different areas of the shoe sole, a further improved adaptation of the tread to a natural walking motion can be achieved. The sections with different curvatures can hereby smoothly or angularly merge into each other at a certain angle. Furthermore, the sections can not pass directly into one another but instead butt against one another as separate tread sections, the sections being able to be spaced apart, for example, by a groove. This is the case, for example, when two adjacent sections are formed on two different parts of the shoe and still form a substantially continuous tread.

Alternatively, the shoe may also have a flat tread, e.g. is known by conventional ski boots.

In a further embodiment, a shoe according to the invention with curved tread portions in a front end region and in a rear end region of the tread may have a convexly curved portion. Such an embodiment allows an ergonomic rolling of the shoe on a base when performing a natural walking motion, as described in the above section. The shoe sole surface may be curved or curved from a flat or concave central part towards the longitudinal ends in such a way that the running surface at the longitudinal ends is lifted off the base in a state of the shoe with the running surface on a support, the center of the radius of curvature So above, on the side facing away from the pad, the tread is. The "interior" of a body to be defined for defining the terms "convex surface" and "concave surface" here refers to the volume formed by the shoe.

Alternatively, one of the portions at one of the end portions of the tread may be e.g. be formed flat. It is also conceivable that the running surface is flat at both end regions. The tread may also be formed according to a conventional standardized sole as it is e.g. in the case of a ski boot sole according to the standards ISO 5355, DIN 7881 and ASTM F944. The shoe may then be e.g. be mounted in a conventional ski binding, with a correct safety release is possible.

In a further embodiment of a shoe according to the invention, the shoe has a tread which is at least partially made of an elastic material and at least partially profiled. This ensures that when performing a natural walking motion, e.g. When walking on a surface, a good grip is present and even on snow and ice, the shoe does not slip away. The running surface can be designed in a shoe according to the invention similar to the running surface of a mountaineering shoe which is used for walking. Thus, e.g. When ascending during the ski touring, even rock areas that have no snow, are safely overcome on foot. In this case, an elastic tread can, even when the shoe is fastened in a binding state, have an attenuation of e.g. Vibrations, which are transmitted from a surface to which the binding is attached to the shoe, allow.

In this case, the running surface of the shoe preferably has sections in a front end region and in a rear end region which have a smooth surface, so that they form sliding zones. The sliding zones are arranged in such a way that, when the shoe is present in a safety binding, they rest against corresponding sections which are formed on contact surfaces of the binding jaws. The sections of the binding jaws can also be designed as sliding zones. Preferably, the sliding zones of the shoe extend perpendicular to a shoe longitudinal direction over the entire width of the tread. This allows the shoe in a lateral direction, ie transverse to the shoe longitudinal direction, slides with its sliding zones on the support surfaces. The sliding zones can be made of materials that are different from the materials of the remaining running surface of the shoe or the bearing surfaces of the binding jaws. By a suitable choice of material of the sliding zones, a high reproducibility of the tripping force can be achieved which must be exceeded for the initiation of a lateral safety release of the binding. Preference is given here, for example, to polytetrafluoroethylenes (Teflon) or similar plastics which have high lubricity.

Alternatively, the tread of the shoe, such as e.g. designed in a conventional ski boot as a flat and rigid tread and has no sliding zones. In particular, the tread of the ski boot can be designed such that the ski boot is e.g. can be held by a conventional slope or touring binding.

In one embodiment of a shoe according to the invention with a running surface, the running surface can have sections which are formed on the outer shell and have sections which are formed on the coupling part. This ensures that none of the parts of the shoe alone must have a continuous tread to still have a continuous tread on the shoe. The coupling part may have tread portions and apertures on a lower side, which prevent, for example, when the walking movement is being performed. Snow accumulates in the coupling part. In the downhill position, tread portions which are correspondingly formed on an underside of the outer shell can then be introduced into the apertures such that the tread portions of the coupling part and tread portions of the outer shell join together to form an entire tread.

Alternatively, the tread may also have only tread portions formed on the same part of the shoe. It is e.g. conceivable that all sections of the tread are configured on the coupling part.

A shoe according to the invention with a running surface can be held by a binding which has a toe holding the shoe in the area of the toe and a heel jaw designed to hold the shoe in the area of the heel of the shoe. The heel cup of the binding has an open position in which the shoe can be inserted into the binding or deployed out of the binding. Next, the heel cheek has a Closing position, in which the binding is when the shoe is held in the binding. The toe piece and the heel piece each comprise a base plate with a support surface. The bearing surfaces are each complementary to the corresponding tread portions of the tread of the shoe, so that when held in the binding shoe a front tread portion rests on the support surface of the toe and a rear tread portion rests on the support surface of the heel. By a corresponding shape of the tread and the bearing surfaces of the binding jaws improved grip of the shoe is achieved in the binding. If the tread portions, for example, curved out, the bearing surfaces have a corresponding curvature, whereby the shoe can be held with improved form-fitting in the bond. However, the tread portions and the corresponding bearing surfaces need not be curved. It is also conceivable that the tread portions have inclined, flat surfaces which stand out, for example at the longitudinal ends of the tread from a pad and the bearing surfaces are formed by corresponding, inclined to the substrate flat surfaces. Likewise, the entire running surface and thus also the contact surfaces of the binding jaws can be made flat, as in conventional ski boots and ski bindings.

Alternatively, the bearing surfaces may have other curvatures than the tread portions. For example, The bearing surfaces may be formed flat at a curved tread. As a result, the shoe is not held in a form-fitting manner in the binding, which requires otherwise holding measures.

In a further embodiment of a binding for a shoe according to the invention with a running surface, the toe piece and / or the heel piece each have a safety release which, given a force action between the shoe held in the binding and the binding, is greater than one predetermined in each case on the binding jaw Threshold, brings the respective binding jaws from the closed position to a release position and thus releases the shoe. This ensures that is released in a fall held in the binding shoe before it comes to injury to the skier. The safety release on the binding jaws can be achieved, for example, by the binding jaws a according to the in WO 96/23559 (Fritschi ) described safety release for a ski binding. In this case, a hold-down on the toe side about a pivot axis which is perpendicular to a ski surface, swing out, wherein the toe is supported against a spring. This allows a sideways release of the shoe on the toe. A hold-down device is provided on the heel piece, which is pivotable against a spring about an axis which is transverse to a ski binding longitudinal direction and parallel to a ski surface, and thus enables a release of the shoe by lifting a heel portion of the shoe.

In an alternative, an embodiment of the binding jaws is conceivable, which have no safety release and the hold-down can be transferred in the closed position exclusively via a manually operable opening mechanism in a position in which the shoe from the binding or can be introduced (step -in and step-out position). This can e.g. in an embodiment of the binding for a cross country boot or a telemark shoe be the case.

In a further possible embodiment of a binding for a shoe according to the invention with a running surface, the binding jaws can each have first coupling means, which are complementary to second coupling means on a fastening device. Thereby, the binding jaws can be attached to the fastening device. In this case, the fastening device is designed such that it can be attached to a surface. As a result, the binding jaws connect to one another via the fastening device and can be fastened to the surface as such. The fastening device can be configured plate-shaped, wherein as a second coupling means, a rail is present. The binding jaws then have corresponding engaging means which can engage the rail. Thereby, the binding jaws can be attached to the rail by the engaging means.

Alternatively, the binding jaws are screwed in a conventional manner, for example directly to the surface.

In a further embodiment of a binding for a shoe according to the invention, in particular a ski boot, with a running surface, wherein the binding cheeks can be attached to a fastening device, the fastening device is formed as part of a ski. Preferably, the fastening device is designed as a rail on the ski surface, in which corresponding engagement means can engage the binding jaws. It is conceivable that the binding jaws are displaceable on the rail and can be fixed in different positions.

The invention further relates to a system of a shoe and a binding according to the invention, wherein the shoe has a tread having curved portions and preferably in a front end portion and in a rear end portion each having convexly curved portions, and the binding of a toe and a heel piece each comprising a support surface. The bearing surfaces are designed to be complementary to the tread portions, which abut in a held in the binding state of the shoe to the bearing surfaces of the binding jaws. By a corresponding shape of the tread and the bearing surfaces of the binding jaws improved grip of the shoe is achieved in the binding. If the tread portions are e.g. formed arched in tread end side sections, the bearing surfaces have a corresponding complementary curvature, whereby the shoe with improved form-fitting in the binding can be maintained.

Alternatively, the sole of the shoe may also be configured as in conventional ski boots and thereby form a system with a conventional binding. Conventional ski bindings and ski boots are in this case e.g. Ski bindings and ski boots which, according to standards such as e.g. ISO 5355, DIN 7881 and / or ASTM F944. This ensures a secure hold and, if a safety release is present, a correct functioning of the safety release of the ski binding.

From the following detailed description and the totality of the claims, further advantageous embodiments and feature combinations of the invention result.

Brief description of the drawings

Fig. 1a

eine schematische Seitenansicht eines erfindungsgemässen Skischuhs in einer Skibindung in einer Abfahrtsstellung,

Fig. 1b

eine schematische Seitenansicht eines erfindungsgemässen Skischuhs in einer Skibindung in einer Schwenkstellung,

Fig. 1c

eine schematische sohlenseitige Ansicht eines erfindungsgemässen Skischuhs,

Fig. 1d

eine Aussenansicht eines erfindungsgemässen Skischuhs in einer Ausführungsform mit einer Sohlenschale mit durchgehender Unterseite und einem Verriegelungshebel mit Steighilfe,

Fig. 2a

eine schematische Teilansicht eines Schnittes durch einen erfindungsgemässen Skischuh mit einem Verriegelungshebel, der als Steighilfe ausgebildet ist, in einer verriegelten Abfahrtstellung,

Fig. 2b

eine schematische Teilansicht eines Schnittes durch einen erfindungsgemässen Skischuh mit einem Verriegelungshebel, der als Steighilfe ausgebildet ist, in einer entriegelten Aufstiegsstellung, wobei die Steighilfe in eine neutralen Stellung verschwenkt ist,

Fig. 2c

eine schematische Teilansicht eines Schnittes durch einen erfindungsgemässen Skischuh mit einem Verriegelungshebel, der als Steighilfe ausgebildet ist, in einer entriegelten Aufstiegsstellung, wobei die Steighilfe in eine Stellung verschwenkt ist, in der sie eine erhöhte Auflagefläche bildet,

Fig. 2d

eine schematische Teilansicht eines Schnittes durch einen erfindungsgemässen Skischuh mit einem Verriegelungshebel, der als Steighilfe ausgebildet ist, in einer entriegelten Aufstiegsstellung, wobei die Steighilfe in eine weitere Stellung verschwenkt ist, in der sie eine weitere Auflagefläche bildet,

Fig. 3

eine schematische Teilansicht eines Schnittes durch einen erfindungsgemässen Skischuh, welcher in einem Fersenbereich mit einem als Steighilfe ausgebildeten Verriegelungshebel, der mit einer Dämpfungsvorrichtung versehen ist,

Fig. 4a

eine schematische Teilansicht eines Schnittes in einem vorderen Schuhbereich durch einen erfindungsgemässen Skischuh mit einem vollständig abgesenkten Fersenbereich der Aussenschale,

Fig. 4b

eine Ansicht gemäss Fig. 4a mit angehobenem Fersenabschnitt der Aussenschale,

Fig. 4c

eine Ansicht gemäss Fig. 4b mit weiter angehobenem Fersenabschnitt der Aussenschale,

Fig. 5a

eine schematische Teilansicht eines Schnittes in einem vorderen Schuhbereich durch einen erfindungsgemässen Skischuh mit einem vollständig abgesenkten Fersenbereich der Aussenschale,

Fig. 5b

eine Ansicht gemäss Fig. 5a mit angehobenem Fersenabschnitt der Aussenschale,

Fig. 5c

eine Ansicht gemäss Fig. 5b mit weiter angehobenem Fersenabschnitt der Aussenschale,

Fig. 5d

eine Ansicht gemäss Fig. 5c mit annähernd 90° Verschwenkung zwischen Aussenschale und Kopplungsteil,

Fig. 6a

eine schematische Teilansicht eines Schnittes in einem vorderen Schuhbereich durch einen erfindungsgemässen Skischuh mit einem vollständig abgesenkten Fersenbereich der Aussenschale,

Fig. 6b

eine Ansicht gemäss Fig. 6a mit angehobenem Fersenabschnitt der Aussenschale,

Fig. 6c

eine Ansicht gemäss Fig. 6b mit weiter angehobenem Fersenabschnitt der Aussenschale,

Fig. 7a

eine schematische Teilansicht eines Schnittes in einem vorderen Schuhbereich durch einen erfindungsgemässen Skischuh mit einem vollständig abgesenkten Fersenbereich der Aussenschale,

Fig. 7b

eine Ansicht gemäss Fig. 7a mit angehobenem Fersenabschnitt der Aussenschale.

The drawings used to explain the embodiment show:

Fig. 1a

a schematic side view of a ski boot according to the invention in a ski binding in a downhill position,

Fig. 1b

a schematic side view of a ski boot according to the invention in a ski binding in a pivot position,

Fig. 1c

a schematic sole side view of a ski boot according to the invention,

Fig. 1d

an outer view of a ski boot according to the invention in one embodiment with a sole shell with a continuous underside and a locking lever with climbing aid,

Fig. 2a

1 is a schematic partial view of a section through a ski boot according to the invention with a locking lever, which is designed as a climbing aid, in a locked down position;

Fig. 2b

a schematic partial view of a section through a ski boot according to the invention with a locking lever, which is designed as a climbing aid, in an unlocked ascent position, wherein the climbing aid is pivoted to a neutral position,

Fig. 2c

a schematic partial view of a section through a ski boot according to the invention with a locking lever which is designed as a climbing aid, in an unlocked ascent position, wherein the climbing aid is pivoted into a position in which it forms an elevated support surface,

Fig. 2d

a schematic partial view of a section through a ski boot according to the invention with a locking lever, which is designed as a climbing aid, in an unlocked ascent position, wherein the climbing aid is pivoted into a further position in which it forms another bearing surface,

Fig. 3

1 is a schematic partial view of a section through a ski boot according to the invention, which is provided in a heel region with a locking lever designed as a climbing aid, which is provided with a damping device;

Fig. 4a

2 shows a schematic partial view of a section in a front shoe area through a ski boot according to the invention with a completely lowered heel area of the outer shell,

Fig. 4b

a view according to Fig. 4a with raised heel portion of the outer shell,

Fig. 4c

a view according to Fig. 4b with further raised heel portion of the outer shell,

Fig. 5a

2 shows a schematic partial view of a section in a front shoe area through a ski boot according to the invention with a completely lowered heel area of the outer shell,

Fig. 5b

a view according to Fig. 5a with raised heel portion of the outer shell,

Fig. 5c

a view according to Fig. 5b with further raised heel portion of the outer shell,

Fig. 5d

a view according to Fig. 5c with approximately 90 ° pivoting between outer shell and coupling part,

Fig. 6a

2 shows a schematic partial view of a section in a front shoe area through a ski boot according to the invention with a completely lowered heel area of the outer shell,

Fig. 6b

a view according to Fig. 6a with raised heel portion of the outer shell,

Fig. 6c

a view according to Fig. 6b with further raised heel portion of the outer shell,

Fig. 7a

2 shows a schematic partial view of a section in a front shoe area through a ski boot according to the invention with a completely lowered heel area of the outer shell,

Fig. 7b

a view according to Fig. 7a with raised heel section of the outer shell.

Basically, the same parts are provided with the same reference numerals in the figures.

Ways to carry out the invention ingredients

In FIG. 1a a ski boot 100 according to the invention is shown, which is held in a ski binding 200, which on a surface 1, such as the surface of a ski, is attached.

The ski boot 100 has a coupling part 101 and an outer shell 120. The outer shell 120 can hold a foot of a skier (not shown). The coupling part 101 is formed in the illustrated embodiment of the ski boot 100 as an elongate frame-like carrier 102 which extends from a heel region 112 of the ski boot 100 to a ski boot tip region 111 and has an opening 121. The opening 121 passes through the carrier 102 and has an opening 122.1 or 122.2 facing the surface 1 and facing away from the surface 1. The ski binding 200, which supports the carrier 102, has a toe 201 and a rear heel jaw 202, the arrangement of which on the surface 1 defines a ski binding longitudinal direction. In the case of attachment to a ski surface, the ski binding longitudinal direction is arranged parallel to the longitudinal axis of the ski. In this case, the longitudinal direction of the carrier 102 held in the ski binding 200 is parallel to the ski binding longitudinal direction and thus defines a front and a rear longitudinal end 105 or 106 of the carrier 102.

Tie and wearer

The front jaw 201 and the heel jaw 202 each have a hold-down 203 or 204, which is formed in each case with respect to the ski binding longitudinal direction on the side facing the respective other binding jaws. The hold-downs 203 and 204 hold the carrier 102 to coupling means 107 and 108, respectively, of the carrier 102. The hold-down 203 of the toe-up 201 holds the carrier 102 on the front coupling means 107, which is formed on its front end 105, and the hold-down 204 of the Heel cup 202 holds the carrier 102 on the rear coupling means 108, which is formed at its rear end 106.

Next, the front jaw 201 has a base plate 207 provided with a support surface 205. The base plate 207 is formed on the surface 1 facing side of the front jaw 201 and extends toward the heel cup 202 back. The support surface 205 is formed on the side facing away from the surface 1 of the base plate 207 and has a concave curvature. At the front longitudinal end 105 of the carrier 102, a convexly curved tread portion 109 is formed on an underside facing the surface 1, which corresponds to a portion of the support surface 205 complementary. When held in the ski binding 200 ski boot 100 of the tread portion 109 is in the corresponding section of the support surface 205 at. In this case, the tread portion 109 has at a region near the rear longitudinal end 106 of the ski boot 100 a sliding zone 136 which extends across the entire width of the tread portion 109 transversely to a ski boot plane E (see FIG Fig. 1c ), which is defined by the beam longitudinal direction and a direction perpendicular to the surface 1. The heel piece 202 likewise has a base plate 208 with a concavely curved bearing surface 206. The base plate 208 is also formed on the side facing the surface 1 of the heel jaw 202 and extends in the direction of the toe 201. The support surface 206 is formed on the side facing away from the surface 1 of the base plate 208. The rear longitudinal end 106 of the carrier 102 has, on an underside facing the surface 1, a convexly curved tread portion 110, which corresponds to a portion of the support surface 206 complementary. When held in the ski binding state of the ski boot 100 of the tread portion 110 is located in the corresponding section of the Support surface 206 at. In this case, the tread portion 110 has at a region near the front longitudinal end 105 a sliding zone 137 which extends across the entire width of the tread portion 110 transversely to the ski boot plane E. The hold-downs 203 and 204 hold the carrier 102 in the longitudinal direction of the carrier by exerting a sole-pressing pressure, wherein the sole-pressing pressure acts respectively in the direction of the other binding-baking. On the other hand, at the same time, the carrier 102 on the coupling devices 107 and 108 is held down by the hold-downs 203 and 204 in the direction of the corresponding bearing surfaces 205 and 206, respectively.

outer shell

On the support 102, the outer shell 120 of the ski boot 100 is still present. The ski boot 100 is in the Fig. 1a shown in a downhill position, in which a heel region 125 of the outer shell 120 is lowered onto the carrier 102. In this case, the outer shell 120 with respect to a ski boot plane E (see Fig. 1c ) partially enclosed on both sides by the carrier 102. The outer shell 120 is arranged in the opening 121 of the carrier 102, wherein an underside 104 of the outer shell 120 facing the surface 1 partially passes through the opening 122.1 of the carrier 102. An upper surface 103 of the outer shell 102 facing away from the surface 1 passes through the opening 122.2. The outer shell 120 comprises a foot shell 104 and a shaft shell 123. The shaft shell 123 is formed on the upper side 103 of the outer shell 120 and surrounds the part of the calf present in the ski boot 100 of a skier. The region 140 of the underside 104 of the outer shell 120, which passes through the opening 121, is formed partially or completely as a tread portion 141 or 142. The tread portions 109 and 110 of the carrier 102 and the tread portions 141 and 142 smoothly merge and form a continuous tread of the ski boot 100.

The outer shell 120 of the ski boot 100 is hinged in a front region on the carrier 102. The outer shell 120 is pivotable about a geometric axis of rotation A, which lies in a ball region of the foot (not shown) held in the outer shell 120 and is perpendicular to the ski boot plane E. The articulated connection is in the illustrated embodiment by Rotary hinges 124 reached, which connect the outer shell 120 with the carrier 102. The swivel joints 124 are arranged symmetrically with respect to the ski boot plane E, coaxially with the geometric axis of rotation A on the outer shell 120. The hinges 124 are arranged at the edge of the opening 122.2 of the opening 121 of the carrier 102.

locking lever

At the rear longitudinal end 106 of the carrier 102 is an elongated locking lever 130 at one of its longitudinal ends 134 about a geometric axis of rotation B, which is perpendicular to the ski boot plane E, pivotally mounted. An axle body 131 connects the locking lever 130 with the carrier 102, so that the locking lever 130 can be pivoted with its longitudinal direction in the ski boot plane E either from the outer shell 120 to the rear or the outer shell 120 back. For this purpose, the locking lever 130 has, at its longitudinal end 135 opposite the longitudinal end 134, a handle 136 which can be actuated manually or with a ski pole, for example. In fully pivoted to the outer shell 120 state of the locking lever 130 is in the down position, as in Fig. 1a is shown on its outer shell 120 side facing the outer shell 120 at. In particular, the locking lever 130 rests in the heel region 112 of the ski boot 100 and in regions of the shaft shell 123 of the outer shell 120.

The locking lever 130 has on its outer shell 120 of the ski boot 100 side facing a coupling means 132. A coupling means 133, which corresponds to the coupling means 132, is formed on the outer shell 120 and is arranged in such a way that, when the locking lever 130 is pivoted completely towards the outer shell 120, the coupling means 132 and 133 engage in one another positively and / or non-positively. Thus, the coupling means 132 engages in the downhill position in the coupling means 133 and prevents the lifting of the heel portion 125 of the outer shell 120 of the carrier 102. The outer shell is thus locked to the carrier 102 in the down position.

FIG. 1b shows a ski boot 100 according to the invention in a pivoting position 165. The locking lever 130 in an unlocked position 160, which differs from the locked downhill position 150 in that the locking lever 130 is pivoted away from the outer shell 120 of the ski boot 100 about the axis B, that the coupling means 132 of the locking lever 130 does not engage in the corresponding coupling means 133 on the outer shell 120. The outer shell 120 of the ski boot 100 is thus unlocked relative to the carrier 102 and pivotable about the axis A. Thus, the heel portion 125 of the outer shell 120 can be lifted from the carrier 102 and lowered again. The outer shell 120 is formed on the ski boot tip 111 such that it does not hinder the pivoting about the axis A and pivoting of the outer shell 120 relative to the carrier 102 by at least 90 ° is possible.

In Figure 1c is a schematic plan view of the surface 1 facing side of a ski boot 100 according to the invention shown. The ski boot 100 is in the representation of Fig. 1c in the downhill position, ie the heel region 125 of the outer shell 120 is lowered onto the carrier 102 and the outer shell 120 is locked relative to the carrier 102. The view shows only parts of the ski boot 100 and no parts of the ski binding or a ski. In the illustration, it can be seen how the tread portions 109 and 110 of the frame-like carrier 102 and the tread portions 141 and 142 on the bottom 104 of the outer shell 120 abut each other. The tread portions 141 and 142 of the outer shell 120 are formed continuously in the illustrated embodiment and thus together with the tread portions 109 and 110 a continuous tread 138 of the ski boot 100. The tread portions 141 and 142 are arranged in the opening 122.1 of the carrier 102 and can partially pass through them. The carrier 102 comprises the outer shell 120 in the manner of a frame and, in the illustrated view, covers the greater part of the outer shell 120, wherein the shaft shell 123 is visible. The outer shell 120 is connected via hinges 124 to the carrier 102 and pivotable relative to the carrier 102 via the common geometric axis of rotation A of the rotary joints 124. At the rear end 106 of the carrier 102, the locking lever 130 is present. The carrier 102 is further provided with coupling means 107 and 108, at which the hold-downs 203 and 204 of the ski binding hold the carrier 102 when the ski boot 100 is present in the binding.

In Figure 1d a further embodiment of a ski boot 250 according to the invention is shown in an unlocked and pivoted position. The illustration shows an outside view of the ski boot 250, with an outer shell 252 and a coupling part 251. In contrast to the illustrations of the Fig. 1a to 1c For example, the coupling part 251 is formed as an elongated sole shell 253 with a continuous bottom 254 and not as a frame-shaped carrier. The outer shell 252 is present in a cavity 268 of the sole shell 253 which has an opening 269 on a side 290 of the sole shell 253 opposite the underside 254. In the downhill position (not shown), a lower side 270 of the outer shell 252 is lowered onto the inner side 271 of the underside 254 of the sole shell 253. The sole cup 253 has various apertures 255, which on the one hand reduce the weight of the sole cup 253 and thus of the ski boot 250, and on the other hand create a drain for snow, which can accumulate in the sole cup 253. But there are no breakthroughs on the bottom 254 of the sole cup 253 available. On the outside, the sole shell 253 has on its underside 254 a continuous running surface 256 which, for example, is made of an elastic material such as rubber and profiled. In this case, the running surface 256 has differently curved sections, in particular has a convexly curved running surface section 259 or 260 in a sole region at a front longitudinal end 257 of the sole shell 253 and in a sole region at a rear longitudinal end 258 of the sole shell 253. The tread portions 259 and 260 each have a sliding zone 291 and 292, respectively. At the front longitudinal end 257 and at the rear longitudinal end 258, the sole shell 253 further comprises a coupling means in the form of a projection 272 and 273, respectively, on which the shoe can be held in a binding on the sole shell 253.

At its rear longitudinal end, an elongated support lever 262 is formed on the coupling part 251 via an axle body, not shown in the illustration, with a rotation axis B, which is provided with a climbing aid which comprises two projections 263 and bearing surfaces 264 formed thereon. At its longitudinal end 266 facing away from the axle body, the support lever 262 has a handle 265. The outer shell 252 has a latching surface 267, which comes to lie on lowering the outer shell 252 on the coupling part 251 in pivoted position of the support lever 262 on the corresponding bearing surfaces 264.

Next, a locking device 285 is present on the ski boot 250. The locking device 285 in this case comprises a bayonet-type closure 286 and a corresponding counterpart 287, which is formed in an ankle region on the outer shell 252. The bayonet-type closure 286 is arranged on the sole shell 253 in such a way that, when the outer shell 252 is lowered, a locking of the closure 286 with the counterpart 287 is possible.

In a ball region of a foot, which is present in the outer shell 252 (not shown), the outer shell 252 is connected to the coupling part 251 via pivot joints 261, which are provided on both sides of the foot on the outer shell 252. The hinges 261 have a common axis of rotation A. The outer shell has different shell parts, in particular a shaft shell 276, a foot shell 277 and a toe shell 278 are present. Furthermore, there is an inner shoe 279, which has a cushion collar 281 protruding over an entry opening 280 via the shaft shell 276.

FIG. 2a The ski section 300 is held by a heel jaw 330 of a ski binding to a coupling means 306, which at a rear end 303 of a Support 304 of the ski boot 300 is formed. A in the heel area on the ski boot 300 existing locking lever 301 is in the FIGS. 2a-d Also designed as a three-stage climbing aid. The locking lever 301 is pivotably mounted at one of its longitudinal ends 308 by an axle body 302 at the rear end 303 of the support 304 so that it lies with its longitudinal axis C in the ski boot plane E on the one hand to an outer shell 305 of the ski boot 300 and back again the outer shell 305 is pivotable away. A longitudinal end 309 of the locking lever 301 opposite the longitudinal end 308 has a handle 310 with a recess 331. The handle 310 allows the manual Pivoting of the locking lever 301, wherein the recess 331 facilitates the pivoting of the locking lever 301 with a ski pole. The locking lever 301 further has on its outer shell 305 side facing at different distances from the longitudinal end 308, three projections 311, 312 and 313, each having on the side facing away from the longitudinal end 308 bearing surfaces 314, 315 and 316 respectively. At its other longitudinal end 309, the locking lever 301 further has a coupling means, which in the illustrated embodiment is designed as a hook-like projection 318. The outer shell 305 has the projections 311, 312 and 313 corresponding recesses 319, 320 and 321, which are formed such that when lowered onto the support 304 heel region 307 of the locking lever 301 can be pivoted to the outer shell 305 and the projections 311 to 313 are received in the recesses 319-321. The side of the recess 319 lying further away from the carrier 304, which lies opposite the support surface 314 of the first projection of the locking lever 301, is designed as a latching surface 323. In this case, the recess 319 closest to the support 304 transitions into the heel region 307 of the outer shell 305.

The outer shell 305 further has a hook-like projection 318 complementary coupling part 322, in which the hook-like projection 318, upon complete pivoting of the locking lever 301 to the outer shell 305, can engage. When the locking lever 301 is locked, the outer shell 305 of the ski boot 300 is locked relative to the carrier 304 and the ski boot 300 is in the downhill position (see FIG Fig. 2a ).

In FIG. 2b the heel area of the ski boot 300 is shown with the heel area 307 of the outer shell 305 lowered onto the carrier 304. In this case, the locking lever 301 is pivoted away from the outer shell 305 of the ski boot 300 in a first pivot position relative to the downhill position. In the first pivot position, the longitudinal axis C of the locking lever with respect to its position D is pivoted in the fully pivoted position of the downhill position by an included angle α. A device not shown here allows the locking of the locking lever 301 in different pivot positions. In the first pivot position of the locking lever 301 is the outer shell 305 unlocked and in a climbing position relative to the carrier 304 about the axis A ( 1a-c ) pivotable. In this case, the latching surface 323 provided on the outer shell 305 also describes a pivoting movement about the axis A. In the first pivot position of the locking lever 301, the bearing surface 314 of the first carrier-proximal projection 311 of the locking lever 301 lies in the pivoting path of the latching surface 323.

As a result, the latching surface 323 rests on the bearing surface 314 of the first projection 311 of the locking lever 301 when the heel region 307 is lowered onto the carrier 304. The lowering of the heel portion 307 on the support 304, we are not limited by the climbing aid on the locking lever 301 here.

In Figure 2c the ski boot 300 is in an unlocked ascent position, in which the outer shell 305 about the axis A relative to the carrier 304 is pivotable. The locking lever 301 is latched in a second pivoting position, in which the bearing surface 315 of the second projection 312 lies in the pivoting track of the latching surface 323 provided on the outer shell 305. The longitudinal axis of the locking lever 301 in the second pivoting position is pivoted by an angle β relative to the position D of the longitudinal axis in the downhill position. As a result, the pivoting range of the outer shell 305 is restricted and the latching surface 323 can not be lowered further in the direction of the support 304 until it rests on the support surface 315. Thus, the heel region 307 can not be further lowered onto the carrier 304.

In Figure 2d the ski boot 300 is also in an unlocked ascent position with pivotable outer shell 305. The locking lever 301 is in a third pivot position in which the bearing surface 316 of the third projection 313, which is farthest from the axle body 302, in the pivoting path of the locking surface 323 lies. In the illustrated embodiment, the longitudinal axis C of the locking lever 301 is in the same pivotal position as in the locked down position (the included angle γ between C and D disappears). As a result, the pivoting range of the outer shell 304 is further restricted and the heel region 307 can be located less far on the carrier 304 are lowered than in the first or second pivot position of the locking lever 301.

FIG. 3 shows a further schematic sectional view of a heel portion of another embodiment of a ski boot 349 according to the invention. In the in FIG. 3 illustrated embodiment, the pivotal attachment of the locking lever 301 on a carrier 350 by an axle body 351 on an additional spring-mounted storage. This is achieved by forming in the carrier 350 an elongate cavity 352 in which there is a damping spring 353, the spring force of which acts in a direction directed away from the surface 1. The cavity 352 is oriented substantially perpendicular to the surface 1. The cavity 352 has two longitudinal ends 355 and 356, wherein the longitudinal end 355 is closer to a tread portion 354 of the carrier 350, which is formed on an underside of the carrier 350 facing the surface 1. At the longitudinal end 355, the cavity 352 is connected via a bore 357 to an opening 358 in the tread portion 354. In the bore 357, an adjustment device 359 is provided, which allows a change in the bias of the damping spring 353. In the illustrated embodiment, the adjustment device 359 is implemented by an internal thread 360 provided in the bore 357 and a screw 361 screwed therein, which is coupled to a proximal end 362 of the spring 353.

At the distal end 356 of the cavity 352, the axle body 351 passes through the cavity 352 transversely to the longitudinal direction of the cavity 352. The axle body 351 is guided in elongated recesses 363 of the carrier 350. The longitudinal direction of the recesses 363 is parallel to the longitudinal direction of the cavity 352. The damping spring 353 abuts the axle body 351 at its end remote from the sun's surface and presses it, by its spring force, away from the tread portion 354 to a stop 364 of the recesses 363 remote from the surface of the sun.

This ensures that a load of the outer shell 305 towards the surface 1 out, for example, by a skier when performing a walking movement, which transmits to the locking lever 301, counteracts the damping spring 353 acts. As a result, the axle body 351 becomes resilient in the longitudinal direction of the recesses 363 moved. With appropriate adjustment of the bias of the spring 353, for example, according to the weight of the skier, so that an attenuation of shocks is achieved, which act on a heel region of the ski boot 349.

FIG. 4a shows a schematic representation of a possible embodiment of the connection between a coupling part 401 and an outer shell 402 of a ski boot 400 according to the invention, which on the one hand allows a rotational movement about a geometric axis of rotation A and on the other hand a bending of the outer shell 402.

In a sectional view in a ski boot plane, which the ski boot plane E of Fig. 1c corresponds, a front portion of the ski boot 400 is shown. The ski boot 400 is in a position in which a heel region (not shown) of the outer shell 402 is lowered onto the coupling part 401. The coupling part 401 has at a front longitudinal end on a projection 415, which serves as a coupling means for attachment in a ski binding. The outer shell 402 of the ski boot 400 comprises in the illustrated embodiment a substantially hemispherical, one-sided open and substantially rigid toe shell 403 and an open at two longitudinal ends, substantially rigid tubular instep shell 404. The toe shell 403 has in the ski boot plane E a circular arc-shaped cross-section on, wherein the center of the circular arc with the geometric axis of rotation A is concentric. The toe shell 403 in this case comprises a foot-side opening 405, through which the toes and portions of the football of a foot held in the outer shell 402 can be introduced into the toe shell 403. The instep tray 404 has an opening at each of two longitudinal ends, wherein the foot can be introduced into the instep tray 404 through a heel-side opening (not shown) and the toe and an area of the foot can be inserted through a toe-side opening 416 in the case of the outer cup 402 survive over the instep tray 404. On the open side 405 of the toe shell 403, the toe-side opening 416 of the instep shell 404 adjoins. The instep tray is connected at one edge 420 of the opening 416 via a kink 407 with an edge 421 of the opening 405 elastically pivotable. The kink 407 lies below the ball area of a foot, which is received in the outer shell 402. A geometric pivot axis F of the kink 407 is here aligned parallel to the axis of rotation A. In a region between the toe shell 403 and the instep shell 404, a portion of elastic material 406 is present above the foot, which connects the edge 421 with the edge 420. The elastic portion 406 has a maximum width 408 above the foot in the direction of a ski boot longitudinal direction and tapers toward the kink 407 of the outer shell 402.

The outer shell 402 is connected to the coupling part 401 via pivot joints 409, which are formed on both sides of a foot 402 present in the outer shell in a ball area on the toe shell 403 and have a common axis of rotation which is coaxial with the axis of rotation A. Further, on the toe shell 403 at the skischuhspitzennächsten point 410 on the outside of a trained as a projection stop 411 available. The coupling part 401 faces inside, i. on the outer shell 402 facing side 412, a circular arc-shaped curvature whose center substantially coincides with the axis of rotation A. The radius of curvature on the coupling part 401 is thereby greater than an outer radius of the toe shell 403 by slightly more than the radial extent of the stop 411 with respect to the rotation axis A. As a result, the outer shell 402 can be rotated about the axis of rotation A without abutting the coupling part 401. On the inside, a counter-stop 413 corresponding to the stop 411 of the toe shell 403 is provided on the coupling part 401 on the curved surface, which is offset in the azimuthal direction about the rotation axis A from the stop by an angle of approximately 45 ° in the direction of a bottom 414 of the ski boot , The angle can also be chosen larger or smaller, depending on how large the desired angle range is to be swept with a pure rotational movement of the outer shell 402.

FIG. 4b shows a schematic view of a ski boot 400 according to the invention Fig. 4a wherein the outer shell 402 is pivoted relative to the coupling part 401 and the heel region of the outer shell 402 is lifted off the coupling part 401. The transition from the in Fig. 4a position shown to the position in Fig. 4b corresponds to a first phase of a walking movement in which the lifting of the heel portion of the outer shell 402 is achieved by the coupling part 401 by a pure rotational movement about the geometric axis of rotation A. In Fig. 4b is the outer shell 402 opposite the position shown in FIG Fig. 4a is rotated about the axis of rotation A, wherein the heel portion of the outer shell 402 (not shown) from the heel portion of the coupling part 401 (not shown) is lifted. In the position of Fig. 4b the abutment 411 of the toe shell 403 abuts against the counterstop 413 of the coupling part 401 and thus limits further pivoting of the outer shell 402 about the axis of rotation A. The elastic region 406 of the outer shell 402 is not compressed or otherwise deformed in this position of the walking movement ,

Figure 4c shows a schematic view of a ski boot 400 in a second phase of the walking motion. In the second phase of the walking movement, the lifting of the heel area of the outer shell 402 is achieved by an elastic deformation of the outer shell 402. The heel area of the outer shell 402 is opposite to the position of the Fig. 4b further lifted from the coupling part 401 of the ski boot 400. Since the pivoting of the outer shell 402 about the axis of rotation A is prevented by abutment of the stop 411 against the counter-stop 413, the instep 404 is tilted away from the toe shell 403 of the coupling part 401 by the further lifting of the heel region of the outer shell 402. In this case, the elastic region 406, which connects the toe shell 403 with the instep shell 404, has been deformed and compressed.

These two phases of the walking movement can also occur superimposed and are shown as temporally successive phases for better illustration. It is also conceivable that the two phases occur in a different order or only one of the phases occurs.

FIG. 5a shows a schematic representation of another possible embodiment of the connection between a coupling part 501 and an outer shell 502 of a ski boot 500 according to the invention, which on the one hand allows a rotational movement about a first geometric axis of rotation A and a rotational movement about a second geometric axis of rotation G and on the other hand a bending of the outer shell 502 ,

In one of the Fig. 4a corresponding sectional view, a front portion of the ski boot 500 is shown. The ski boot 500 is in a position in which a heel region of the outer shell 502 is lowered onto the coupling part 501. An instep tray 504 and a toe cup 503 are substantially the same in the Fig. 4a illustrated embodiment accordingly.

In contrast to the embodiment of the Fig. 4a For example, the toe cup 503 is connected to a respective elongate short carrier 510 via pivot joints 509 which are formed on both sides of a foot present in the outer shell 502 in a ball area on the toe cup 503. The swivel joints 509 are present at one of the longitudinal ends of the supports 510 and have a common axis of rotation H. The axis of rotation H forms the geometric axis of rotation A. At the respective other longitudinal end, the supports 510 are connected to the coupling part 501 via a respective pivot joint 511 , The pivot joints 511 have a common axis of rotation G. The axis of rotation G is closer to a ski boot tip than the axis of rotation A. Next, the toe cup 503 no skisschuhspitzennahen stop, but has the outside, on both sides of a recorded in the outer shell 502 foot, in a toe area in each case a driver stop 530. The driver stops 530 are formed on the outside of the toe shell 503 such that they do not abut the coupling part 501 when the outer shell 502 rotates about a rotation axis A. The carriers 510 are arranged with their longitudinal direction approximately in the direction of a ski chair longitudinal direction on the outer shell 502 such that each area of the carrier 510 forms a counter stop 513 for the Mitnehmeranschläge 530 of the toe 503 when pivoting the outer shell 502 about the axis of rotation. The counterstops 513 are preferably located in the longitudinal direction of the carrier 510 in a region between the two geometric axes of rotation A and G. The instep tray 504 and the toe cup 503 are in accordance with the representations of Fig. 4a-c pivoted at a kink 507 about a geometric axis F pivotally to each other. An edge 520 of a toe-side opening 516 of the instep tray 504 is connected via an elastic portion 506 to the edge 521 of the foot-side opening 505 of the toe cup 503.

FIG. 5b shows a schematic view of a ski boot 500 according to the invention Fig. 5a , wherein the outer shell 502 is pivoted relative to the coupling part 501 and the heel region of the outer shell 502 is lifted from the coupling part 501. The transition from the in Fig. 5a position shown to the position in Fig. 5b corresponds to a first phase of a walking movement in which the lifting of the heel portion of the outer shell 502 is achieved by the coupling part 501 by a pure rotational movement about the geometric axis of rotation A. In the position of Fig. 5b the catch stops 530 of the toe shell 503 abut against the counterstops 513 of the supports 510 and thus limit further pivoting of the outer shell 502 about the rotation axis A. An elastic region 506 which is arranged between the instep shell 504 and the toe shell 603 is in this position the walking motion is not compressed or deformed in any other way.

FIG. 5c shows a schematic view of a ski boot 500 in a second phase of the walking movement. In the second phase of the walking movement, the lifting off of the heel region of the outer shell 502 is achieved by an elastic deformation of the outer shell 502 in the elastic region 506 and a buckling in a bending region 507 of the outer shell 502. The position of Fig. 5c corresponds essentially to that in the Fig. 4c position shown.

FIG. 5d shows a schematic view of a ski boot 500 in a third phase of the walking movement. In the third phase of the walking movement, the lifting of the heel region of the outer shell 502 is achieved by a second rotational movement about the second axis of rotation G. The elastic region 506 of the outer shell 502 is completely compressed in the second phase, where "fully compressed" means that the resistance of the elastic material to raising the heel region of the outer shell 502 reaches a certain threshold, which impedes further bending and thus the initiation the third phase. It is not excluded that the elastic region could be further compressed.

In the third phase of the walking movement, the abutment of the driver stops 530 of the toe cup 503 against the counterstops 513 of the carrier 510 and the complete compression of the elastic region 506 result in further lifting the heel region of the outer shell 502 of the coupling part 501 only possible by a rotational movement about the second axis of rotation G. In this case, the toe cup 503 relative to the supports 510 at rest and is pivoted with these about the rotation axis G. In the in Fig. 5d illustrated position, the outer shell 502 is further pivoted about the rotation axis G, wherein the elastic portion 506 is still fully compressed. However, it is also possible for the elastic region 506 to be relaxed and stretched again during the third phase. By pivoting the carrier 510 and the axis of rotation formed by the rotary joints 509 H is rotated relative to the geometric axis of rotation A about the axis of rotation G.

As in the embodiment of the Fig. 4a-c The different phases of the walking movement can also be superimposed or occur in a different order and are shown as temporally successive phases only for better illustration. Likewise, not all phases must occur during the walking movement.

FIG. 6a shows a schematic representation of another possible embodiment of the connection between a coupling part 601 and an outer shell 602 of a ski boot 600 according to the invention, which on the one hand allows a rotational movement about a geometric axis of rotation A and on the other hand, a bending of the outer shell 602.

In one of the Fig. 4a and Fig. 5a corresponding sectional view of a front portion of the ski boot 600 is shown. The ski boot 600 is in a position in which a heel region of the outer shell 602 is lowered onto the coupling part 601. An instep tray 604 and a toe cup 603 are substantially similar to those in the Fig. 4a illustrated embodiment executed.

Unlike the one in the Fig. 4a-c In the illustrated embodiment, the instep tray 602 is pivotally connected to the toe cup 603 and to the coupling member 601 at pivots 609 connecting the toe cup 603 to the coupling member 601. As a result, the instep tray 602 can also be rotated relative to the toe tray 603 about the geometric axis of rotation A. Below a ball area of a foot received in the outer shell 602 is an edge 620 of a toe-side opening 616 of the instep tray is connected by a bellows 630 to an edge 621 of the toe cup 602. The bellows 630 extends from one of the swivel joints 609 along the edges 620 and 621 below the foot to the other of the swivel joints 609. To protect the bellows 630, the instep bowl 604 overlaps on the outside the toe shell 603 in a region 635 of the bellows 630.

An elastic portion 606 connects the edges 620 and 621 in an area above the foot, also from one of the hinges 609 to the other. The elastic portion 606 is as in the Fig. 4a and Fig. 5a formed in an area between the edges 620 and 621. Next are according to the execution of Fig. 4a formed on the toe shell 603 and the coupling part 601 designed as a projection stop 611 and a corresponding counter-stop 613.

FIG. 6b shows a schematic view of a ski boot 600 according to the invention Fig. 6a , wherein the outer shell 602 is pivoted relative to the coupling part 601 and the heel region of the outer shell 602 is lifted off the coupling part 601. The transition from the in Fig. 6a position on the position of Fig. 6b corresponds to the first phase of the walking movement of the Fig. 4a and 4b ,

FIG. 6c shows a second phase of the walking movement of a ski boot 600. In the second phase of the walking movement, the lifting of the heel area of the outer shell 602 is achieved by an elastic deformation of the outer shell 602. The heel area of the outer shell 602 is opposite to the position of the Fig. 6b further lifted from the coupling part 601 of the ski boot 600. Since the further pivoting of the toe shell 603 about the axis of rotation A is prevented by abutment of the abutment 611 against a counter abutment 613, the further raising of the heel region of the outer shell 602 causes the instep shell 604 to pivot about the axis of rotation A relative to the toe shell 603. In this case, the elastic region 606, which connects the toe shell 603 with the instep shell 604 above the foot, is deformed and compressed while the bellows 630 under the foot is correspondingly stretched.

In this case too, the two phases of the walking movement can be superposed or occur in a different order and are shown as temporally successive phases only for better illustration.

Figure 7a shows a schematic representation of another embodiment of a ski boot 700 according to the invention. In this case, the connection of a coupling part 701 with an outer shell 702 is designed such that the feasibility of a walking movement is achieved exclusively by a bending of the outer shell 702.

In a the Fig. 4a . 5a and 6a corresponding sectional view, a front portion of the ski boot 700 is shown. The ski boot 700 is in a position in which a heel region (not shown) of the outer shell 702 is lowered onto the coupling part 701. The outer shell 702 comprises a substantially rigid instep shell 704 and a substantially rigid toe shell 703. The toe shell 703 is substantially hemispherical and open on one side. The instep tray 704 is substantially tubular in shape and is open at both longitudinal ends. For a foot present in the outer shell 702, the foot partially passes through a toe-side opening 716 of the instep tray 704, with a toe area and a ball area of the foot then protruding beyond the instep tray 704. In comparison with in the Fig. 4a . 5a or 6a illustrated embodiment, the instep tray 704 is shorter in its longitudinal direction. As a result, when the foot is completely inserted into the instep tray 704 through a heel-side opening, in contrast to the one in FIG Fig. 5a and 6a a longer portion of the forefoot passes through the opening 716. In particular, the instep tray 704 is configured such that the entire forefoot area, including the toe area and the ball area, projects beyond the instep tray 704 through the opening 716. The instep tray 704 is connected to the toe cup 703 via an elastic portion 706. The toe shell 703 in this case has a foot-side opening 705 through which the toes are introduced into the toe shell 703 when the foot is present in the outer shell 702. The openings 705 and 716 are connected to each other at their edges 721 and 720 by the elastic portion 706. In this case, the elastic section 706 encloses a ring in the form of a foot present in the outer shell 702.

Preferably, the elastic portion 706 extends longitudinally of the foot from a toe area over the ball area to a portion of the midfoot. In particular, the elastic portion 706 is made longer than in the embodiments of FIGS Fig. 4a . 5a and 6a ,

The toe cup 703 in this embodiment is fixedly and rigidly connected to the coupling part 701 such that the leg-side opening 705 of the toe cup faces toward the heel portion of the ski boot 700. In the illustrated embodiment, the toe cup 703 and the coupling member 701 are made of one piece. However, toe cup 703 and coupling member 701 may also be used e.g. comprise two separate parts and be rigidly connected by additional fastening means.

In the lowered state of the outer shell 702 on the coupling part 701, the instep tray 704 abuts with an outer side 710 of a lower side 711 on an inner side 712 of the underside 713 of the coupling part 701. In another embodiment, the coupling part 701 on its underside 713 but also have one or more openings, whereby the outer side 710 of the instep tray 704 then can not abut the inner side 712 of the bottom 713. In any case, the instep tray 704 is freely removable from the coupling part 701. The elastic portion 706 also rests on the underside outside 714 on the inside 710 of the coupling part 701. The elastic portion 706 is not connected to the coupling part 701, but freely lifted. However, it is also conceivable that the elastic portion 706 is connected in another embodiment on its outer side 714 partially with the coupling part 701.

FIG. 7b shows a schematic view of a ski boot 700 according to the invention Fig. 7a wherein the heel portion of the outer shell 702 is lifted from the coupling portion 701. In contrast to the embodiments of the Fig. 4 . 5 and 6 the lifting of the heel portion of the outer shell 702 is achieved here exclusively by bending the outer shell 702 in the elastic portion 706. Due to the rigid arrangement of the toe shell 703 on the coupling part 701, the position of the toe shell 703 relative to the coupling part 701 has not been changed by lifting the heel area. However, the instep tray 704 is of the Coupling part 701 lifted and pivoted against this. In this case, the elastic portion 706 in an upper portion 730, wherein the upper portion 730 is above a present in the ski boot 700 foot, between an upper portion 732 of the edge 721 and an upper portion 733 of the edge 720 compressed and additionally bent. A lower portion 731 of the elastic portion 706 lying below the foot is stretched and bent between a lower portion 734 of the rim 721 and a lower portion 735 of the rim 720. The underside outer side 714 of the elastic region 706 is lifted off the coupling part 701.

By the elastic portion 706 of the outer shell 702 is achieved so that the outer shell 702 can follow a natural bending of the foot in the toe or ball area, as occurs in a natural walking motion.

Such an embodiment of a ski boot according to the invention may e.g. used in telemark or cross country skiing shoes. The concrete execution of the elastic portion, the concrete area which it covers and e.g. Also, the materials are to be adapted to the given requirements and may differ significantly from the illustrated schematic design.

Overall, it should be noted that the representations of the preceding figures are to be understood as schematic sketches that serve to clearly illustrate the modes of operation of a ski boot according to the invention. In particular, the schematic representation of the ski boot is used to explain various phases of the walking movement and it is understood that a real embodiment of a ski boot according to the invention can differ considerably from the schematically illustrated one. This sometimes length and size ratios, as would be formed in a real version of the ski boot, have not been taken into account, but have often been adapted in the drawings so that the facts presented is clearly explained.

It is understood that other embodiments of a ski boot according to the invention are possible in addition to those described above. It should be noted, for example, that the locking lever on the coupling part a coupling means for coupling may have with the outer shell, which does not include a hook-like projection as described above, but has, for example, a bayonet-type closure, a buckle or a screw cap with its complementary counterparts on the outer shell of the ski boot. Likewise, such closures may also be formed on the outer shell, wherein the counterparts are then formed on the coupling part.

Further, it is conceivable that the damping device on the locking lever not as described above has a spring which is coupled to the pivot axis of the locking lever. Damping can also be achieved by e.g. the coupling means on the locking lever or its counterparts are completely or partially elastically formed. It can e.g. Recesses on the outer shell, in which a coupling means of the locking lever engages be lined with an elastic plastic, whereby a damped coupling of the outer shell is achieved with the locking lever. It is conceivable that of two adjacent recesses one is lined elastically and the other not. The coupling means on the locking lever can then be e.g. by pivoting the locking lever from one recess into the other recess, whereby e.g. is achieved that in the same pivot position of the outer shell relative to the coupling part on the one hand a damped ski boot position and on the other hand, an undamped position is present.

It should also be noted that the geometric pivot axis F of the bending region in other embodiments also need not be parallel to the axis of rotation A. The geometric axis of rotation F can in this case e.g. not perpendicular to the ski boot plane E and aligned so that it is parallel to a line formed by the toe sets in the ball area of the foot. Thus, a further improvement in comfort when performing the walking movement can be achieved.

Further, the flexibility of the outer shell can be achieved in a different manner than by the above-described kink area in conjunction with an elastic portion between a toe shell and an instep shell. It is conceivable, for example, that the kink area by a hinge-like or other kind of articulated connection is reached. Furthermore, the one or more elastic regions can of course also be formed by bellows which connect the edges of the outer shell parts to one another. Larger regions of the outer shell can also be made elastic as in the preceding illustrations. In one embodiment of the ski boot, for example in which the execution of a walking movement is achieved exclusively by a bendability of the outer shell, it is conceivable, for example, that no rigid toe shell is present and an entire front region of the outer shell is elastically formed. Likewise, it is also conceivable that, for example, the instep shell or the toe shell itself comprises a plurality of shell parts, which in turn are connected to one another by elastic regions.

In other embodiments, the transition from a rotational movement to a bending movement as described above and achieved by attacks on the outer shell and counter-attacks on the coupling part can be achieved in other ways. It is e.g. conceivable that the connection of the outer shell is formed with the coupling part such that during the execution of the walking movement, the forces exerted by the foot on the outer shell act such that a transition from a rotational movement is initiated in a bending movement without the rotational movement through any means on the ski boot is limited. This can e.g. be achieved by a special position of the geometric axis of rotation of the rotary motion.

Overall, it should be noted that the connection between the coupling part and the outer shell can also be achieved by any combination of the above-described types of connection or their components.

In summary, it should be noted that the invention provides a shoe for a binding, which is suitable for alpine skiing, ski touring, cross-country skiing, telemark skiing and also for other Schneegleitsportarten, the shoe has a large carrying and movement comfort and also by multi-functional components is achieved that the overall equipment with which the snow sports is loaded, may have a low weight.

Claims (24)

1. Boot for a binding, in particular a ski boot, having an outer shell (120, 252), which accommodates, retains and completely encloses the foot, and having a coupling part (101, 251) which is fitted on the outer shell (120, 252) and is intended for fastening the boot (100, 250) in a binding (200), and therefore the boot (100, 250) can be retained on the coupling part (101, 251) by the binding (200) in a boot-toe region (111) and in a heel region (112), the coupling part (101, 251) extends from a front longitudinal end of the ski boot to a rear longitudinal end, and wherein the coupling part (101, 251) and the outer shell (120, 252) are connected to one another in a movable manner, and therefore the foot retained in the outer shell (120, 252), during a walking movement, can be raised up from the coupling part (101, 251), together with the outer shell (120, 252), in a heel region (125, 307) and can be lowered onto the coupling part again when the coupling part (101, 251) is fastened in the binding (200), wherein the coupling part (101, 304) is a frame-like design and encloses the outer shell (120, 305) externally in a frame-like manner on either side of the foot, characterized in that the coupling part is of rigid design.
2. Boot according to Claim 1, characterized in that the outer shell (402, 502) is connected to the coupling part (401, 501) such that the walking movement is achieved both by rotary movement about a geometrical axis of rotation (A) in a direction transverse to a longitudinal direction of the boot and by deformation of the outer shell (402, 502) in at least one elastic region (406, 506).
3. Boot according to Claim 2, characterized in that the geometrical axis of rotation (A) is set back in relation to a boot toe (111) in a front half of the boot (100, 250) such that the geometrical axis of rotation (A) passes through the outer shell (120, 252).
4. Boot according to either of Claims 2 or 3, characterized in that the outer shell (502) is connected to the coupling part (501) such that, in addition to the rotary movement about the first geometrical axis of rotation (A), a further rotary movement takes place about a second geometrical axis of rotation (G), wherein the second axis of rotation (G) is spaced apart from the first axis of rotation (A).
5. Boot according to one of Claims 1 to 4, characterized by the presence on the boot (100, 250, 300) of a locking device (132, 133, 285) which allows locking of the outer shell (120, 252, 305) in relation to the coupling part (101, 251, 304) in which the heel region (125, 307) of the outer shell (120, 252, 305) is lowered all the way onto the coupling part (101, 251, 304) and fixed thereto.
6. Boot according to Claim 5, characterized in that the locking device allows the outer shell to be locked in further positions in relation to the coupling part, wherein the further positions differ as a result of the distance between the heel region of the outer shell and the coupling part.
7. Boot according to either of Claims 5 or 6, characterized in that the locking device (132, 133) is present in the heel region (112) of the boot (100, 250, 300).
8. Boot according to one of Claims 5 to 7, characterized in that the locking device (132, 133, 318, 322) comprises a pivotable lever (130, 301) which is articulated on the coupling part (101, 251, 304) of the boot (100, 250, 300).
9. Boot according to one of Claims 5 to 8, characterized by the presence on the boot of a damping device which, in at least one of the locking positions, allows the heel region of the outer shell to be pivoted in a resiliently damped manner in relation to the coupling part, wherein the resiliently damped pivoting action takes place about the damped locking position.
10. Boot according to Claim 9, characterized in that the damping device is active in the locked position in which the heel region of the outer shell is lowered all the way onto the coupling part.
11. Boot according to either of Claims 9 or 10, characterized in that the damping device is present on the coupling part.
12. Boot according to one of Claims 9 to 11, characterized in that the damping device is integrated in the locking device.
13. Boot according to one of Claims 1 to 12, characterized by the presence on the boot (250, 300, 349) of a supporting lever (262, 301) which has preferably two or more bearing means (264, 314, 315, 316) for the outer shell (252, 305) and these bearing means can be pivoted into the movement path of the unlocked outer shell (252, 305), the bearing means (264, 314, 315, 316) forming a climbing aid and, by supporting the outer shell (252, 305), limit the lowering movement of the heel region (125, 307) of the outer shell (252, 305) in the direction of the coupling part (251, 304).
14. Boot according to Claim 13, characterized in that the supporting lever (262, 301) is articulated on the coupling part (251, 304, 350).
15. Boot according to one of Claims 1 to 14, characterized in that the outer shell (120, 252) comprises a foot shell (104, 277) and shaft shell (123, 276), such that a foot accommodated in the outer shell (120, 252) is arranged essentially in the foot shell (104, 277) and the shaft shell (123, 276) encloses essentially a part of the calf, and the shaft shell (123, 276) is articulated on the foot shell (104, 277) such that it can be pivoted in an ankle region.
16. Boot according to Claim 15, characterized by the presence of a securing device which allows the shaft shell to be secured in relation to the foot shell.
17. Boot according to one of Claims 5 to 8 and Claim 16, characterized in that the securing device is integrated in the locking device.
18. Boot according to one of Claims 1 to 17, characterized in that the boot (100, 250) has a walking surface (138, 256), which has different curved portions (109, 110, 259, 260) and the portions merge one into the other or butt against one another smoothly or edged.
19. Boot according to Claim 18, characterized in that the walking surface of the boot (100, 250) has a convexly curved portion (109, 110, 259, 260) in each a front end region and in a rear end region.
20. Boot according to either of Claims 18 or 19, characterized in that the walking surface (138, 256) is produced, at least in part, from an elastic material and is profiled at least in part.
21. Boot according to either of Claims 18 or 20, characterized in that the walking surface (138, 256) has portions (141, 142) which are formed on the outer shell (120) and portions (109, 110, 259, 260, 354) which are formed on the coupling part (101, 251, 304).
22. System made up of a boot and of a ski binding (200) and comprising a boot (100, 250) according to one of Claims 1 to 21.
23. System according to Claim 22 made up of a boot according to one of Claims 18 to 21, wherein the ski binding comprises a front jaw (201), which is formed in the region of the boot toe for the purpose of retaining the boot (100, 250), and a heel jaw (202, 330), which is designed for retaining the boot (100, 250) in the region of the boot heel (112), wherein the heel jaw (202, 330) has an open position, in which the boot (100, 250) can be introduced into the binding (200) or removed from the binding (200), and the binding (200) has a closed position, in which the binding (200) is configured when the boot (100, 250) is retained in the binding (200), and the front jaw (201) and the heel jaw (202, 330) each have a bearing surface (205, 206), and the bearing surfaces (205, 206) here are designed to complement corresponding walking-surface portions (109, 110, 141, 142, 259, 260) of the boot (100, 250), and therefore, with the boot (100, 250) retained in the binding (200), a front walking-surface portion (109, 141, 259) of the boot (100, 250) rests on the bearing surface (205) of the front jaw (201) and a rear walking-surface portion of the boot (100, 142, 250) rests on the bearing surface (206) of the heel jaw (202, 330).
24. System according to Claim 22 or 23, characterized in that the binding jaws have first coupling means, and a fastening device is also present, this having second coupling means which complement the first coupling means of the binding jaws, and therefore the binding jaws can be fitted on the fastening device and the fastening device is part of a ski.

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