EP1790245A1 - 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 with a coupling part attached to the outer shell for fastening the shoe in a binding, so that the shoe in a shoe tip area and in a shoe heel area of the Binding can be held on the coupling part and the coupling part has a connection with the outer shell, such that when performing a walking movement in a heel region, the outer shell can be lifted off the coupling part and lowered onto it again, while the coupling part is fastened in the binding, wherein the outer shell is pivotable about a geometric axis transverse to a shoe longitudinal direction.

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. Also was in the CH 593 031 A5 (Gertsch AG) for a more comfortable natural walking a curvature of a tread of a ski boot proposed. However, the last-mentioned shoe can only be held on the ski by a specially shaped intermediate plate binding in a conventional ski binding.

Although these improvements are able to make the ski boot more comfortable in different ways in each case, they do not solve fundamental problems of natural movements that are to be carried out 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 pivots opposite the ski can be. 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, the ski boot with respect to the ski about the horizontal transverse axis between a starting position and a plurality of pivot positions is pivotable. 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, a plate, which is connected to the ski boot, but prevents an ergonomic movement, whereby the above-mentioned fundamental problems with natural movements continue to exist. In addition, the achieved by the peripheral arrangement of the pivot axis of the ski boot tip pivotability for the skier is known not very comfortable, since the pivot point is ergonomically unfavorable. Similar disadvantages has the EP 0 015 862 A (Blanc ), in which a ski boot is described, in which an outer shell is hinged at its tip by a peripherally arranged pivot axis pivotally mounted on a ski boot sole. The ski boot sole can be kept in a conventional ski binding and is designed in its outer dimensions corresponding to a conventional ski boot sole. The ski boot sole has a longitudinal slot in which an additional web-shaped support for a shaft shell comes to rest when the heel area is lowered. There are similar disadvantages as in the DE 2 064 754 (Heili ) when performing a natural walking motion without skis as well as during a walking movement to climb on ski tours.

More versatile and comfortable for natural walking and climbing, but also awkward to use, is the CH 679 108 A5 (Weber ) proposed ski boot set. There, a ski boot shell can be used in different shoe soles, which are specially designed for the particular requirements. However, the versatility results only from the application of the entire set, ie, to take advantage of all the benefits of the sentence, the skier would have different soles and various liners with him, which is undesirable especially when touring due to the additional weight.

Further attempts to provide a conventional alpine ski binding with the functionality of a touring ski binding are eg in the US 4,839,972 A1 (Roger Pack et al. ) and the US 4,920,665 A1 (Roger Pack ). In both documents, a heel cup of a ski boot is pivotable relative to a toe cup over joints in the ball area such that, when held in a binding condition, the heel cup can be pivoted away from the ski while the toe cup is kept in a toe cup of the binding. Here is a plate ( US 4,839,972 A1 ) or a mounting bracket ( US 4,920,665 A1 ) attached to the toe shell, with which the ski boot is held on the heel side in a heel cup. In addition to a complicated and thus mechanically susceptible construction of the Ski boot both versions have the disadvantage that the entire pivoting movement must be performed by the ball joint of the foot. This results in the one hand, by the ball joint, limited pivoting range and high stress on the ball joint when climbing, which can lead to considerable pain and sometimes to injuries such as blisters with longer touring.

Next, in addition to a low comfort of the known shoes and bindings when ski touring in addition to the problem of a relatively high weight of the ski touring equipment that must accompany the skier with it. Such touring ski equipment includes e.g. 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 e.g. 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, For example, a modern ski boot has a rigid ski boot sole and a modern ski binding has a ski boot carrier, both of which provide a longitudinal connection between a front and a rear binding jaw that is already stable in itself.

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 will be one Locking lever 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.

Presentation of the invention

The object of the invention is therefore to provide a shoe belonging to the technical field mentioned above for a binding, which creates a versatile and easy alternative to previous shoes for bindings while having a high degree of comfort.

The solution of the problem is defined by the features of claim 1. According to the invention, the shoe for a binding, in particular the ski boot, comprises an outer shell for receiving and holding a foot and a coupling part attached to the outer shell. The coupling part serves for fastening the shoe in a binding. When held in the binding state, the shoe is held in a toe region and in a heel region of the binding on the coupling part. The coupling part has a connection to the outer shell, such that when a walking movement is made in a heel region, the outer shell can be lifted off the coupling part and lowered again onto it, while the coupling part is fastened in the binding. The outer shell is pivotable about a geometric axis transverse to a longitudinal direction of the shoe and the geometric axis of rotation is set back from a tip of the outer shell, that by the longitudinal position of the geometric axis of rotation in an interior for receiving the foot in the outer shell, a front and a rear subspace is defined and takes place at a lifting of the heel portion of the coupling member in a rotational phase of the walking movement, an at least partial descent of the front portion of the outer shell into an interior of the coupling part.

Unless otherwise indicated, walking motion means a sequence of movements in which the heel region of a foot is lifted off a support and lowered back onto it, as e.g. while climbing while ski touring occurs. A similar walking movement is also used in other snow-sport sports, such as Cross-country skiing or telemark skiing. With a "natural walking motion", however, the movement sequence of rolling a foot over the ball and toes is called, as it occurs in the mode of locomotion of walking.

Shoes which can be kept in a binding are used in particular for skiing or other sliding sports on snow. In the following, although the invention is carried out without restricting the generality of the example of ski boots and the walking motion is explained on the basis of climbing in ski touring, but the inventive idea can be readily transferred to shoes for other snow sports.

In contrast to conventional ski boots, the outer shell of a ski boot according to the invention can be moved relative to the coupling part in a walking movement 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 back thereon. Since the ski boot is held by a ski binding only on the coupling part, so that the walking movement can also be carried out when the ski boot is attached in a binding, which does not have the ascent function of a touring binding such as a conventional piste binding. 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. If the ski binding is a modern safety ski binding, the coupling part, and thus the ski boot, can be deployed out of the binding with a force effect exceeding a predetermined threshold value by a safety release. This safety release is possible in every phase of the walking movement, since the fixation of the coupling part in the binding is independent of the walking motion.

It is provided that the outer shell of a ski boot according to the invention has a mobility with respect 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 at 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 coupling part forms an integral part of the ski boot and is preferably designed such that when the heel area of the outer shell is lowered, the coupling part joins the outer shell, so that the outer shell is at least partially received and integrated in the coupling part. The coupling part can for this purpose together with a bottom of the outer shell, e.g. form a substantially curved surface, which e.g. serves as a tread. The ski boot can be unrolled ergonomically on a pad while performing a natural walking motion, while the coupling part is present on the shoe. The coupling member does not hinder the performance of a natural walking movement of the ski boot on a pad and thus does not need to be removed for improved comfort. Thus, the outer shell may be connected to the coupling part such that release of the connection by the user is not provided. On the other hand, however, the compound may also be made detachable, e.g. To be able to separate the outer shell from the coupling part for maintenance purposes. When carrying out the natural walking movement, the heel region of the outer shell preferably remains lowered onto the coupling part and the outer shell is at rest with respect to the coupling part.

The coupling part has an interior, which is designed for at least partially receiving the outer shell. The outer shell preferably has slight depressions on the outside, into which the coupling part is arranged when the heel area is lowered. In one possible embodiment, the coupling part may be formed, for example, shell-shaped, wherein the interior is then formed by the volume enclosed by the cup-shaped coupling part or in a further embodiment, such as a frame-shaped design of the coupling part, the interior can be formed by a framed by the coupling part breakthrough.

The interior of the coupling part can be open in several areas and in particular has at least one opening through which the outer shell can be partially introduced into the interior. The coupling part is in contrast to the known embodiments described above of pivotally hinged on an outer shell ski boot soles an integral part of the ski boot and does not necessarily assume the function of a shoe sole. The coupling part serves primarily for fastening the shoe in a binding, wherein the function of a shoe sole or a possibly existing running surface of other parts of the shoe can be performed. The coupling part of the ski boot extends from a front longitudinal end of the ski boot to a rear longitudinal end, the longitudinal direction of the ski boot being defined by the direction from the toe to the heel of a foot present in the ski boot. The outer shell of the ski boot itself has no integral coupling elements for bindings, i. without the movably mounted coupling part, the outer shell would not be usable in a binding.

The coupling part is rigid, wherein it has in particular a high torsional and bending stiffness. Preferably, the coupling part is made of plastic, which due to great stability requirements, for example, composite materials such as carbon fiber or glass fiber reinforced plastics can be used. However, it is also conceivable that in addition to plastics, other materials such as metals are used. The coupling part is preferably formed in one piece to ensure high stability, but may also include multiple parts with sufficient stability. The parts can then be made of different materials and connected by joining techniques, which also have a sufficiently high stability. It is essential here that the coupling part forms a rigid, continuous structure which can be inserted into a ski binding independently of the outer shell or its configuration such that the coupling part is held in the binding.

The pivotability of the outer shell relative to the coupling part is in this case preferably achieved by a rotary joint, via which the outer shell is connected to the coupling part. A hinge axis of the rotary joint is arranged coaxially with the geometric axis of rotation. The swivel joint is e.g. formed as two bearings, which are arranged coaxially with the first geometric axis of rotation on both sides of a held in the outer shell foot on the outer shell of the shoe and rotatably connected to the coupling part. For the bearings while all suitable appearing versions of articulated connections are conceivable.

The walking movement, in which the heel area is lifted off the coupling part and lowered back onto it, can be subdivided into different phases. In particular, the walking movement comprises a rotation phase in which the pivotability of the outer shell relative to the coupling part required for the walking movement is essentially achieved by a rotatability of the outer shell about the geometric axis of rotation. When the rotation phase is carried out, substantially the entire outer shell is rotated relative to the coupling part about the geometric axis. The walking movement can be composed of other phases in addition to a rotation phase or consist of only one phase of rotation. The first lifting off of the heel region from the coupling part preferably takes place in a pure rotational phase. But there are also other phase divisions of the walking motion conceivable. The outer shell does not have to be rigid in itself, i. different areas of the outer shell can e.g. be rotated in a phase of walking differently far around the axis of rotation.

The geometric axis of rotation of the rotational or rotational or pivoting movement is substantially parallel to a sole of a foot present in the outer shell and is preferably set back from a foremost tip of the outer shell in the direction of a heel region of the outer shell. In particular, the axis of rotation can lie in a longitudinal region of the ski boot, which corresponds to a length region in which a foot present in the outer shell is arranged. The axis can then pass, for example, through an interior of the outer shell, which is provided for receiving the foot, ie the axis can in the area of a foot existing in the shoe by the Outer shell pass through. But it is also conceivable that the axis can be arranged above or below the interior of the outer shell. In particular, the axis of rotation may for example be arranged such that it substantially coincides with a geometric axis of rotation of a ball joint of the foot. Preferably, the geometric axis of rotation lies above an underside of the outer shell in the ball area of the foot.

Due to the inventive construction of the shoe, the position of the geometric 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 one embodiment as Tourenskischuh further set back from the front tip of the outer shell than in an execution as a cross-country boot. Thus, e.g. be achieved 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 is achieved while performing the walking movement. In particular, the position of the axis of rotation can be chosen freely within the scope of the invention without having to accept losses in the comfort of carrying out the walking movement.

Due to the arrangement of the geometric axis of rotation set back from the tip, its position in the longitudinal direction defines two subspaces of the interior of the outer shell, which is intended to receive a foot: A plane in which the axis of rotation lies and which is substantially perpendicular to a lower side of the outer shell , defines a front and a rear compartment of the interior of the outer shell. The front subspace is in a front region, while the rear subspace is arranged in a rear region of the outer shell. The rear subspace extends into the heel area of the outer shell. In particular, the front partial space can be arranged, for example, partially or completely in a toe shell and the rear partial space partially or completely in a heel shell of the outer shell, wherein the toe shell then forms the front region and the heel shell forms the rear region of the outer shell. In principle, however, the division of the interior into the front subspace and the rear subspace is determined by the position of the geometric axis of rotation and not by the division of the outer shell in eg a toe and heel cup.

In the case of a ski boot according to the invention, when the heel area of the outer shell is lifted off from the coupling part, at least partial descent of the front partial space and thus of the front area of the outer shell into the coupling part results. Diving here refers to a vertical lowering of the front compartment to an underside of the shoe (and thus at least partially into the coupling part or in a free space of the coupling part inside). Not in all embodiments, during descent, each area of the front compartment is brought closer to the shoe bottom. For the immersion, however, it is central that at least those areas of the front subspace are immersed or lowered, which lie at the same height above a lower surface of the ski boot when the heel area of the outer shell with the axis of rotation is completely lowered on the coupling part. Instead of a height above a lower surface of the ski boot, the height above a ski surface of a ski, which is provided with a binding in which the shoe is held, can also be used as a reference for the height. When lifting the heel area lying at the same height with the axis of rotation areas of the front part of the space to the bottom or to the ski surface are pivoted out. Thus, the areas are brought to a height above the shoe bottom or the ski surface, which is less than the height of the axis of rotation. That the areas are closer or closer to the shoe bottom than the relative to the shoe or the ski fixed geometric axis of rotation after or during descent.

In the rotational phase of the walking movement, the front subspace or the front area of the outer shell is rotated about the axis of rotation in the same direction of rotation as the rear subspace or the heel area of the outer shell. In this case, the front subspace or the front area of the outer shell does not have to lie above the coupling part before submerging, but can also already be arranged partially or completely in the interior of the coupling part. However, the subspace or the front outer shell area is preferably arranged partially above the coupling part. If the front subspace is only partially arranged in the interior coupling space when the heel area is lowered, it is preferably lowered into the coupling part when descending into the coupling part, ie when lifting off the heel area, so that a larger portion of the front subspace in the Interior of the coupling part is arranged, as when lowered onto the coupling part heel region of the outer shell.

The coupling part is formed such that the rotational movement of the front portion of the outer shell in the rotation phase can be substantially free. In particular, this is the embodiment of a free space in the coupling part connected, which allows the immersion of the front portion of the outer shell. The clearance is e.g. formed by the interior of the coupling part, which creates a suitable design space for the swept in the intended pivoting range of the diving toe area volume. The interior can be designed in various ways. It is conceivable, e.g. due to the rotational nature of the dipping of the front region of the outer shell, in the longitudinal cross-section a substantially circular concave formation of a front portion of an inner wall of the inner space located at the front region of the outer shell. Other embodiments of the front interior section are also conceivable, in which case the front outer shell section is in the process of carrying out the walking movement, i. when diving in a designated pivoting range about the axis of rotation is substantially free to rotate. However, it can also be provided in this case to impede the rotational movement of the front region of the outer shell by additional measures on the coupling part and / or on the outer shell, e.g. gradually aggravated by friction surfaces or stop by stops and counter stops to counteract the Abtauchbewegung the front area.

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 by articulated 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 a manhole of the outer shell, through which the foot can be inserted into the outer shell, 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 outer shell or the inner shoe have an interior, which is provided for receiving the foot of the skier. The skier's foot is then held in place in the interior by the outer shell (or in the padding of the liner), which substantially 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.

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. Due to the possibility to bring an existing ski equipment even when ski touring application, also eliminates 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.

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. A high level of comfort is ensured when carrying out the walking motion and, in particular, the ball joints of the skier are spared because the walking motion can be performed at least in phases without bending the ball joints, in particular with a substantially extended ball joint. The same advantages also result in embodiments of a ski boot according to the invention as a shoe for cross-country skiing or for telemark skiing, in which related movements occur.

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 Therefore, a ski boot according to the invention is 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, eg, reaching only to the caudate, and elastic, and a locking device or a damping device (see below) may be unnecessary. 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. Diving a tip region of the outer shell in the implementation of cross-country movement allows this a novel comfort. In addition to the increased comfort, other advantages may arise: It is conceivable, for example, that by an appropriate design of attacks and counter-attacks on the outer shell and the coupling part, an optimal "power transfer point" can be adjusted during the cross-country movement, in which the pivoting movement a maximum Power transmission from the foot to the ski allows.

Likewise, a ski boot according to the invention can also be used as a telemark shoe. The inventive connection of the outer shell with the coupling part a good pivoting and high torsional stability is achieved without further demands on the ski boot sole. In a possible embodiment as a telemark shoe, a ski boot according to the invention can additionally be provided with a return device, such as a return spring or an elastic band, wherein the return device pulls or presses the heel region of the outer shell onto the coupling part. In conventional telemark shoes lifting of the shoe heel is achieved by a deformation in the ball area, with a toe area remains arranged substantially skifest. This sometimes results in high loads on the ball joint and possibly pressure marks on the foot, especially on the bale and at the transition from instep to toe. With a ski boot according to the invention, however, the descent of a toe area achieves that the lifting of the heel is at least partially achieved by a rotation of the entire outer shell about one Rotary axis is achieved without need for flexion of the foot in the ball area, the axis of rotation can lie in the ball area of the foot.

The same embodiment of a shoe according to the invention can be used as a touring ski boot, ski ski boot, cross country ski boot and as a telemark shoe. Other applications include e.g. also a shoe for ski jumping, snowboarding or back-country skiing ("back-country" is a hybrid sport between cross-country skiing and telemark skiing). In all these applications, on the one hand results in a high level of comfort when performing the walking movement or the corresponding movements and on the other hand, due to the integration of the coupling part in the ski boot results in a high level of comfort in natural walking without skis.

In a preferred embodiment of a shoe according to the invention, the connection of the outer shell to the coupling part is designed such that in a bending phase of the walking movement, the outer shell is deformed in at least one elastic region. In particular, the heel region of the outer shell can then be lifted off or lowered onto the coupling part both by a rotational movement about the geometric axis, or by deformation of at least one elastic region of the outer shell. The walking movement is then preferably divided into two phases: In a first phase of the walking movement, a rotation phase, the outer shell is rotatable in a certain angular range about the geometric axis of rotation. In the rotational phase of the walking movement, the lifting of the heel area is achieved by preferably the entire outer shell is rotated about the axis of rotation, wherein the front portion of the outer shell dips into the coupling part or in the interior thereof.

The angular range of the rotational movement about the axis of rotation can be limited, for example, by stops which are formed on the outer shell and which abut corresponding counterstops in the interior of the coupling part. The attacks can be designed to be elastic in order to make the transition of the rotation phase in a subsequent phase flowing. A limitation of the rotation phase can also be achieved in other ways, for example by a Area of the outer shell slides on a ramp-like surface on the inside of the interior of the coupling part.

A second phase of the walking movement following the first phase is then preferably formed by a bending phase. In this case, e.g. the front portion of the outer shell relative to the coupling member at rest, while the rear portion of the outer shell is moved further. This can e.g. be achieved by different, rigidly formed areas of the outer shell, which are elastically connected to each other. In this case, the outer shell preferably has at least one elastic section in the region of the rotary joint or the geometric axis of rotation, in which the outer shell is elastically deformable. The region is preferably formed on an upper side of the outer shell in a region above the geometric axis of rotation. In this case, the outer shell preferably has a toe shell which surrounds the toes and an instep shell which spans the instep and which is connected to one another by an elastic region at the transition from the instep to the toes. The instep tray can be designed such that it not only straddles the instep, but rather the foot in a metatarsal area, i. in the area of the instep, from the tibial insertion to the toe attachment, completely or partially tubularly enclosed. The instep tray as well as the toe cup may each comprise one or more 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 geometric 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 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 geometric pivot axis is made possible.

When lifting the heel portion of the outer shell from the coupling part then, e.g. the instep tray, are moved while the toe cup, which is elastically connected to the instep tray, remains at rest with respect to the coupling portion. The toe shell has e.g. Attacks on which limit the angular range of rotation in the first phase by abutment against counterstops of the coupling part and thus initiate the transition of the rotation phase (first phase) in the bending phase (second 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, i. 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 being lifted from a pad, is further raised and the instep of the foot flexes. 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. Once the elastic region has reached the neutral position, the lowering movement merges into a rotation phase, thus enabling 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 phases or movements. 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 e.g. are shed with different shell parts of the outer shell. The elastic regions may be made inhomogeneous such that they are e.g. have a gradient in elasticity. This ensures that in different phases of a bending movement different areas of the elastic regions are deformed. It may e.g. the deformation of a region of low elasticity only begin when another region of high elasticity is already completely deformed. If the regions of different elasticity lie in different regions of the ski boot, it can be achieved that e.g. depending on the position of the outer shell during the execution 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, a connection of the outer shell with the coupling part is conceivable, which only allows a rotational movement about an axis of rotation, for example, only swivel joints are present without the outer shell is bendable and the Walking movement is achieved by a pure rotational movement. Then, for example, preferably no stops are present, which restrict the walking movement to an angular range, and the entire walking movement corresponds to a rotation phase with a pure rotational movement about the geometric axis of rotation. The coupling part must then be designed such that the front toe area, which dips into the coupling part, can be pivoted freely over the entire range of rotation.

In order to make the walking movement more ergonomic, another embodiment of a shoe according to the invention has a connection of the outer shell with 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. Preferably, the second geometric axis of rotation is closer to the ski boot tip than the first geometric axis of rotation.

The second axis of rotation allows a further phase of the walking movement, which largely corresponds to a rotational phase, with the difference that in the further phase, the coupling part is not necessary submerged in the coupling part. Whether in the further phase also a descent of the front region of the outer shell or of the front subspace of the interior of the outer shell takes place depends on the spacing of the two geometric axes of rotation. The rotational movement about the second axis of rotation is preferably provided as a third phase of the walking movement, which follows the first and second phases.

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. Preferably, in the third phase of the walking movement, a stretching movement is additionally carried out, which moves the outer shell from a bent end position of the second phase into a neutral one stretched position brings. In the process, the foot present in the outer shell is, on the one hand, rotated about the second axis of rotation on the one hand and, on the other hand, simultaneously stretched. 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 (bending 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 movement 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 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 or in a ring shape. The coupling part extends from a rear longitudinal end of the shoe to a front longitudinal end and has at a front and at a rear longitudinal end in each case a coupling means such as a projection on which it can be held by a binding. At the coupling part in this embodiment there is a vertical aperture which extends perpendicular to the longitudinal direction through the coupling part and which is framed by the coupling part. The breakthrough here forms the interior of the coupling part. Through the opening two openings are formed on the coupling part, which are substantially parallel to a surface at 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 partially protrudes from the opening when the heel area is lowered at both openings. 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 encloses the outside shell on both sides of the foot when the heel area is lowered on the coupling part. The interior formed by the breakthrough can thus partially absorb the outer shell and in particular also allows the descent of a front toe area of the outer shell in the coupling part, ie in the interior of the coupling part, when the heel area is lifted from the coupling part. The breakthrough can be dimensioned such that when the heel area is lowered, the area of the outer shell present in the aperture essentially fills the opening or the inner space. When the heel area of the outer shell is lifted off, for example, only one front section of the outer shell can then be encompassed by the frame-shaped coupling part or be arranged in the inner space.

In a further embodiment, the coupling part is elongated and cup-shaped as a sole shell, which has a substantially 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 underside of the sole shell is facing a surface which is provided with the binding. The sole shell encloses a cavity forming the interior, which has an opening opposite the bottom. The sole shell can also have openings in areas for weight reduction and, for example, for transporting away in the sole cup collecting snow. The outer shell is at least partially disposed in the interior of the sole cup. It stands the Outer shell through the opening of the interior beyond the sole shell, wherein with lowered heel region, the opening of the interior is arranged substantially parallel to the sole of a foot provided in the outer shell.

While performing a walking movement e.g. is necessary for ascending the ski touring or for cross-country skiing, apply to the alpine ski slope very different requirements for a shoe. The shoe should be in a downhill position e.g. create 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 perform a natural walking motion, i. walking without a shoe fastened in a binding, the shoe is also locked 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.

But the locking device for a lock in the downhill position can also eg by a detectable, band-shaped device such as a Velcro fastener tape or a belt provided with a buckle can be achieved, which comprises the outer shell in an instep area and attached in one ankle region of the shoe with one end to the coupling part and with the other end, for example by a buckle, as it is known for example from conventional ski boots solvable is attached. In the state attached to the coupling part of the band-shaped device, the outer shell is then locked on the coupling part, for example 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 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. For example, the recesses described above may be 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. 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 locked in this Einschwenkstellung and only by a certain predetermined force back from the Einschwenkstellung be discharged. 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 formed on the locking device. 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, the the climbing aid forming bearing surfaces but also be formed on a plurality of support levers, wherein by respective pivoting of the corresponding support lever another bearing surface is introduced into the movement path of the locking surface (see, eg 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 substantially in the foot shell, and the upper shell essentially encloses a part of the calf. The shaft shell is articulated to the foot shell in an ankle area and can thereby be pivoted relative to 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 one alternative, a shaft shell is rigidly connected to a foot shell in the shoe. Next, an embodiment of a shoe is conceivable, which indeed has a pivotable shaft shell as part of the outer shell, but this is not compared to the foot shell detectable. This maintains mobility of the leg to the foot, e.g. may be desirable 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 configured on the locking lever, for example, such that the lever 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. Through a Pivoting the lever, the coupling of the first coupling means can now be solved with the shaft shell, 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. During walking, the shoe is first placed on a pad with the heel and then unrolled from heel to toe. 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 be either smooth or at a certain angle edged into each other. 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.

The shoe according to the invention preferably has convexly curved tread portions in a front end region and in a rear end region of the tread. In one possible 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. Preferably, the end-side convex portions are formed on the coupling part. Since the coupling part extends from a front end to a rear end of the ski boot, such an embodiment is preferred so that the tilting movements described above do not occur in natural walking with a conventional ski boot and the shoe can be ergonomically unrolled. It is further achieved that none of the parts of the shoe alone must have a continuous tread to still have a continuous tread on the shoe. In particular, in a frame-shaped coupling part, it is advantageous if the convex portions are configured on the coupling part and the rest of the tread is formed, for example, on an underside of the outer shell. When the outer shell is lowered, the various sections of the tread then form a largely continuous running surface. Thus, the shoe has the convexly curved portions in a condition ready for use in a ski binding mounted on a ski. This means that immediately after leaving the binding, a natural walking movement with a high degree of movement comfort can be carried out without further manipulation. In particular, such a design allows ergonomic rolling of the shoe on a pad, without the coupling part would have to be removed from the shoe. Due to the integral connection of the outer shell with the coupling part and the formation of the convex tread portions on Coupling is achieved that the coupling part not only does not hinder an ergonomic natural walking movement, but in the first place possible.

The sole surface of the shoe may be of a e.g. flat or concave central portion to the longitudinal ends to be arched or curved so that in a standing with the tread on a base state of the shoe, the tread is lifted at the longitudinal ends of the pad. The center of the radius of curvature is therefore above, on a side facing away from the pad, the tread. 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.

The coupling member may also have additional apertures, e.g. allow the removal of snow, which accumulates in the implementation of the walking motion 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.

Preferably, the tread 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 glide 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, to slide 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 thus 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, no sliding zones may be present or the sideways tripping may be done in other ways such as e.g. achieved by sliding elements on the support surfaces. Likewise, the end-side portions of the tread may also be formed flat. The tread may alternatively be e.g. be designed according to a conventional standard sole as is the case with a ski boot sole according to the standards ISO 5355, DIN 7881 and ASTM F944. The shoe can then be fastened in a conventional ski binding. In a shoe having a tread, the tread may include 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 piece designed to hold the shoe in the area of the toe and a heel piece which is designed to hold the shoe in the area of the shoe heel. 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 cup on a closed position in which the binding is when the shoe in the Binding is held. 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 formed, the bearing surfaces have a corresponding complementary curvature, whereby the shoe with improved positive engagement in the bond can be maintained. In particular, the bearing surfaces of the binding jaws can be concave, if the ski boot according to the invention has convexly formed end regions of the running surface. 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 according to the in the 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 bonding jaws are made in a conventional manner, e.g. bolted 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.

Furthermore, the invention relates to a system of a shoe according to the invention and a binding described above, 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 having a heel cup, each comprising a support surface. The bearing surfaces are complementary to the tread portions, that is concave configured at the convex curvature corresponding radius of curvature, which abut in a held in the binding state of the shoe to the bearing surfaces of the binding jaws. The inventive design of the tread and the bearing surfaces of the binding jaws improved grip of the shoe is achieved in the binding. 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 schematische Schnittansicht eines Ausschnittes der Fig. 1a,

Fig. 1e

eine schematische Schnittansicht eines Ausschnittes der Fig. 1b,

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. 7

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

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

a schematic sectional view of a detail of Fig. 1a,

Fig. 1e

a schematic sectional view of a detail of Fig. 1b,

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

4b with a 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

5b with a 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

6 a with a raised heel portion of the outer shell,

Fig. 6c

6b with a further raised heel portion of the outer shell,

Fig. 7

an outside 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.

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

Ways to carry out the invention ingredients

Referring to Figure 1a there is shown a ski boot 100 according to the invention held in a ski binding 200 which is supported on a surface 1, e.g. 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 elongated 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 which an interior space 118 of the carrier 102 and the coupling part 101 forms. 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. 1 c), which extends through the longitudinal direction of the wearer and one Direction perpendicular to the surface 1 is defined. 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 portion of the support surface 206 at. The tread portion 110 has in this case at a front longitudinal end 105 near a sliding zone 137, which extends across the entire width of the tread portion 110 transverse 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 shown in FIG. 1 a 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) on both sides partially enclosed 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 achieved in the illustrated embodiment by hinges 124, 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, e.g. can be operated manually or with a ski pole. In completely pivoted to the outer shell 120 state of the locking lever 130 is in the downhill position, as shown in Fig. 1a, 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 FIG the locked downhill position 150 differs in that the locking lever 130 is pivoted away from the outer shell 120 of the ski boot 100 about the axis B such 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.

FIGS. 1d and 1e each show a schematic sectional view of a front section of the illustration in FIG. 1a or FIG. 1b. In particular, the outer shell 120 and the coupling part 101 are shown in Figs. 1d and 1e shown in a sectional view. The other parts shown correspond to the illustration in FIGS. 1a and 1b. In the following, the parts will be referred to without describing them again.

The outer shell 120 has an inner space 113, which is provided for receiving a foot. The inner space 113 may be delimited directly by the outer shell 120 or by an inner liner, not shown, which is arranged in the outer shell 120. Further, a plane J is shown, which comprises the geometric axis of rotation A and is arranged substantially perpendicular to a bottom 114 of the outer shell 120 or perpendicular to a sole of a foot, not shown, in the shoe 100. In a downhill position with the heel region 125 fully lowered onto the coupling part 101, the plane J is largely perpendicular to the surface 1. However, the plane J is stationary with respect to the outer shell 120 and will move into the pivot position 165 during the transition from the fully lowered heel region 125 the outer shell 120 is pivoted about the axis of rotation A. In the case of a deformable embodiment of the outer shell 120, the plane J is to be understood to be stationary relative to one of the regions of the outer shell 120, such as, for example, the heel region 125. The plane J passes due to the invention according to the invention from a front tip 115 of the outer shell 120 backward offset position of the axis of rotation A through the Interior 113 through. Thus, the plane J in the interior 113 defines a front subspace 116 (bold edged) and a rear subspace 117. In the transition from the lowered heel area position of FIG. 1d to the pivot 165 of FIG. 1e, the heel area (not shown) of FIG Coupling part 101 lifted. In this case, the front subspace 116 dives into the coupling part 101 or into the opening 121 forming an inner space 118 of the coupling part, while the rear subspace 117 is pivoted out of the opening 121. As a result, the portion of a foot present in the shoe 100 in the front partial space 116 is also lowered into the coupling part 101 or pivoted about the axis of rotation A into the coupling part 101 and to the surface 1 or to a shoe bottom 126. In particular, a region 119.2 (narrow hatched) of the subspace 116, which is arranged in a swivel position 165 with the heel area raised inside the inner space 118, is greater than a region 119.1 (narrow hatched) of the subspace 116, which in the downhill position with the heel area lowered in the Interior 118 is arranged.

FIG. 1 c shows a schematic plan view of the side of a ski boot 100 facing the surface 1. The ski boot 100 is in the depiction of FIG. 1 c 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 via the common geometric axis of rotation A of the hinges 124th pivotable relative to the carrier 102. 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.

FIG. 7 shows a further embodiment of a ski boot 250 according to the invention 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 FIGS. 1a to 1c, the coupling part 251 is formed as an elongated sole shell 253 with a continuous bottom 254 and not as a frame-shaped support , 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 tread 256, which e.g. 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 two projections 263 and thereon formed bearing surfaces 264 includes. 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.

2a shows an enlarged schematic sectional view of a heel region of a further embodiment of a ski boot 300 according to the invention. The illustrated section corresponds to a view in the ski boot plane E. The ski boot 300 is held by a heel jaw 330 of a ski binding on a coupling means 306, which at a rear end 303 of a carrier 304 of the ski boot 300 is formed. A in the heel area on the ski boot 300 existing locking lever 301 is formed in the figures 2a-d 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 308 opposite longitudinal end 309 of the locking lever 301 has a handle 310 with a recess 331 on. 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 facing side 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 have. 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. 2a).

FIG. 2b shows the heel region of the ski boot 300 with the heel region 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 allows Here, the locking of the locking lever 301 in different pivot positions. In the first pivot position of the locking lever 301, the outer shell 305 is unlocked and in a climbing position relative to the support 304 about the axis A (Fig. 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 rise 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 rise position with pivoting outer shell 305. The locking lever 301 is in a third pivotal position in which the bearing surface 316 of the third projection 313, which is farthest from the axle 302, in the Swivel path of the locking surface 323 is located. 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 y between C and D disappears). As a result, the pivoting range of the outer shell 304 is wider limited and the heel portion 307 can be lowered to the support 304 less far than in the first or second pivotal position of the locking lever 301th

FIG. 3 shows a further schematic sectional view of a heel region of a further embodiment of a ski boot 349 according to the invention. In the embodiment shown in FIG. 3, the pivotable attachment of the locking lever 301 to a carrier 350 by means of an axle body 351 has an additional sprung mounting. 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 on the outer shell 305 toward the surface 1 out, for example, by a skier when performing a walking motion, which transmits to the locking lever 301, against the damping spring 353 works. As a result, the axle body 351 is displaced resiliently in the longitudinal direction of the recesses 363. 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.

Figure 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 corresponds to the ski boot plane E of Fig. 1 c, 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 in this case has an inner space 423, which is provided for receiving a foot of a skier. The longitudinal position of the axis of rotation A defines the plane J in which the geometric axis A lies and which is perpendicular to a lower side 424 of the outer shell 402 or perpendicular to the sole of a foot existing in the shoe 400. The plane J is stationary relative to the outer shell 402, ie when pivoting or lifting the heel area, the plane J is also swung with the heel area. The plane J thus defines a front part space 425 and a rear part space 426 of the interior 423. The outer shell 402 of the ski boot 400 comprises in the illustrated embodiment a substantially hemispherical, one-side open and substantially rigid toe shell 403, which substantially the front part space 425th completely or partially encloses, and an open at two longitudinal ends, substantially rigid, tubular Ristschale 404, which encloses at least partially the rear compartment 426. The toe shell 403 has in the ski boot plane E a circular arc-shaped cross-section, wherein the center of the circular arc with the geometric axis of rotation A is concentric. The toe cup 403 comprises a foot-side opening 405, through which the toes and sections of the football in the outer shell 402 held foot 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 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 in this case has an inner space 417, in which the outer shell 402 is arranged. The inner space 417 has, in a region 418 which lies in the toe shell 403, on the inside, ie, on the outer shell 402 facing side 412, a concave arcuate curved region 422, wherein the center of the curvature substantially coincides with the axis of rotation A. The radius of curvature of the region 422 on the coupling part 401 is greater than the outer radius of the toe shell 403 by a little more than the radial extent of the stop 411. As a result, the outer shell 402 can be rotated about the axis of rotation A, without the coupling part 401 a toast. On the inside, on the coupling part 401, a stop 411 of the toe shell 403 is correspondingly provided on the curved surface Counter stop 413 present, which is formed in the azimuthal direction about the rotation axis A of 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.

On the outside, the coupling part 401 likewise has a region 419 curved in a circular manner in the longitudinal cross-section. The curvature of the region 419 corresponds to the curvature of the region 422, but the radius of curvature is greater by a wall thickness of the coupling part 401. The region 419 thus forms a basis for a convexly curved portion (not shown) of a running surface of the shoe 400.

FIG. 4b shows a schematic view of a ski boot 400 according to the invention according to 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 position shown in Fig. 4a to the position in Fig. 4b corresponds to a first phase (rotation phase) of a walking movement in which the lifting of the heel portion of the outer shell 402 of the coupling member 401 is achieved by a pure rotational movement about the geometric axis of rotation A. , In FIG. 4b, the outer shell 402 is rotated relative to the illustrated position in FIG. 4a about the axis of rotation A, the heel region of the outer shell 402 (not shown) being lifted off the heel region of the coupling part 401 (not shown).

In the position of FIG. 4b, the toe shell 403 and in particular also the ski boot tip closest point 410 of the toe shell 403 or of the outer shell 401 is pivoted toward the underside 414 of the ski boot 400. The toe shell 403 and thus also the front part space 425 of the inner space 423 of the outer shell 402 is, at least partially, immersed in the inner space 417 of the coupling part 401. The toe shell 403 is so far submerged in the coupling part 401 or rotated about the axis of rotation A, that the stop 411 of the toe shell 403 abuts the counter-stop 413 of the coupling part 401 and thus limits further rotation of the entire outer shell 402 about the axis of rotation A. The elastic area 406 of the outer shell 402 is not compressed in this position of the walking motion or deformed in any other way.

FIG. 4 c shows a schematic view of a ski boot 400 in a second phase (bending phase) of the walking movement. 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 region of the outer shell 402 is thereby lifted from the coupling part 401 of the ski boot 400 in relation to the position of FIG. 4b. Since the pivoting of the outer shell 402 about the axis of rotation A is prevented by the abutment of the stopper 411 against the counter-stop 413, the toe shell 403 can no longer dive into the coupling part 401. The toe cup 403 thus remains in the second phase, i. the bending phase relative to the coupling part 401 stationary. As a result, by further raising the heel area of the outer shell 402, the instep tray 404 is tilted away from the coupling portion 401 by the kink point 407 relative to the toe cup 403. 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. That Rotation and bending can occur simultaneously and need not be clearly separated. It is also conceivable that the two phases occur in reverse order or that only one of the phases occurs.

Figure 5a shows a schematic representation of a further 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 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 allows.

In a sectional view corresponding to FIG. 4a, a front region 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 designed substantially corresponding to the embodiment shown in FIG. 4a.

In contrast to the embodiment of FIG. 4 a, the toe shell 503 is connected in each case to an elongated 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 shell 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 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 at a kink 507 about a geometric axis F. pivotally hinged together. 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 according to 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 off the coupling part 501. The transition from the position shown in Fig. 5a 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 member 501 by a pure rotational movement about the geometric axis of rotation A, ie, the first phase is a rotation phase and largely corresponds to the transition from in Fig. 4a position shown to the position of Fig. 4b. In the position of FIG. 5 b, due to the rotation of the outer shell 502 about the axis A, a front region 508 of the toe shell 503 or the outer shell 502 is at least partially submerged into an inner space 517 of the coupling part 501 with a front partial space 525 enclosed by the front region 508 , The toe shell 503 is so far submerged in the coupling part 501 that the Mitnehmeranschläge 530 of the toe shell 503 abut against the counterstops 513 of the carrier 510 and thus limit further pivoting of the entire outer shell 502 about the axis of rotation A. An elastic region 506 disposed between the instep tray 504 and the toe cup 503 is not compressed or otherwise deformed in this position of walking motion.

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 second phase is therefore formed by a bending phase. The position of FIG. 5c substantially corresponds to the position shown in FIG. 4c.

FIG. 5 d 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 third phase thus again corresponds to a rotation phase of the walking movement. The elastic region 506 of the outer shell 502 is completely compressed after the second phase has been carried out, where "fully compressed" means that the resistance of the elastic material to lifting the heel region of the outer shell 502 reaches a certain threshold, which makes further bending difficult, and thus the Introduction of the third Phase results. It is not excluded that the elastic region could be further compressed.

In the third phase of the walking motion, by striking the cam stops 530 of the toe cup 503 against the counterstops 513 of the carrier 510 and fully compressing the elastic portion 506, further raising the heel portion of the outer cup 502 from the coupling portion 501 only by rotational movement about the second axis of rotation G possible. 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 this case, the front region 508 of the toe shell 503 dips further into the coupling part 501. In the position shown in Fig. 5d, the entire 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 that the elastic region 506 has relaxed again during the third phase and is stretched. 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 FIGS. 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 illustration 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 enables a rotational movement about a geometric axis of rotation A and on the other hand a bending of the outer shell 602.

In a sectional view corresponding to FIGS. 4a and 5a, a front region of the ski boot 600 is shown. The ski boot 600 is in this case in a position in which a heel region of the outer shell 602 is lowered onto the coupling part 601 is. An instep tray 604 and a toe tray 603 are designed essentially corresponding to the embodiment shown in FIG. 4a.

In contrast to the embodiment shown in FIGS. 4 a - c, the instep tray 602 is pivotably connected to the toe shell 603 and to the coupling part 601 at pivot joints 609 which connect the toe shell 603 to the coupling part 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 region of a foot, which is accommodated in the outer shell 602, an edge 620 of a toe-side opening 616 of the instep shell is connected by a bellows 630 to an edge 621 of the toe shell 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 formed in a region between the edges 620 and 621 as in FIGS. 4 a and 5 a. Further, according to the embodiment of Fig. 4a on the toe cup 603 and on the coupling part 601 designed as a projection stop 611 and a corresponding counter-stop 613 are formed.

It is understood that the bellows 630 may also be formed as an elastic region and it is also conceivable that the elastic region 606 may be configured as a bellows. Likewise, in this embodiment of a ski boot 600 according to the invention, the axis of rotation of the outer shell 602 relative to the coupling part 601 does not necessarily coincide with the axis of the joint between the instep shell 604 and the toe shell 603. It is readily conceivable that the articulated connection between the instep tray 604 and the toe cup 603 has an axis which, although preferably parallel to the axis A, is defined by this e.g. spaced towards a ski boot base.

FIG. 6b shows a schematic view of a ski boot 600 according to the invention according to FIG. 6a, wherein the outer shell 602 pivots relative to the coupling part 601 is and the heel portion of the outer shell 602 is lifted from the coupling part 601. The transition from the position shown in Fig. 6a to the position of Fig. 6b takes place in a rotational phase of the walking movement and substantially corresponds to the first phase of Fig. 4a and 4b. The stopper 611 and a front region 608 of the toe shell 603 are submerged in the coupling part 601.

FIG. 6c shows a second phase of the walking movement of a ski boot 600, which is formed by a bending phase. In the second phase of the walking movement, the lifting off of the heel area of the outer shell 602 is thus achieved by an elastic deformation of the outer shell 602. The heel region of the outer shell 602 is thereby lifted from the coupling part 601 of the ski boot 600 in relation to the position of FIG. 6b. Since the further pivoting of the toe cup 603 about the axis of rotation A is prevented by the abutment of the stop 611 against a counter-abutment 613, i. the toe shell 603 can no longer dive into the coupling part 601, the instep tray 604 is pivoted about the axis of rotation A relative to the toe cup 603 by further raising the heel portion of the outer shell 602. 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.

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 may have a coupling means for coupling to the outer shell, which does not comprise a hook-like projection as described above, but for example a bayonet-type closure, a buckle or a screw cap with complementary counterparts on the outer shell of the ski boot. Likewise, such closures be formed on the outer shell, 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 extensions 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 is achieved by a hinge-like or other type of articulated connection. 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. In this case, larger area of the outer shell than in the previous representations may be elastic. In a Embodiment of the ski boot, for example, in which the implementation of a walking motion is achieved exclusively by a flexibility of the outer shell, it is conceivable, for example, that no rigid toe shell is present and an entire front area of the outer shell is formed elastically. 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 stops on the outer shell and counter-attacks on the coupling part can also 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)

Shoe for a binding, in particular a ski boot, with an outer shell (120, 252) for receiving and holding a foot and with a coupling part (101, 251) attached to the outer shell (120, 252) for fastening the shoe (100, 250) in a binding (200) such that the shoe (100, 250) in a shoe tip region (111) and in a shoe heel region (112) can be held by the binding (200) on the coupling part (101, 251) and the coupling part (101, 251) has a connection to the outer shell (120, 252), such that the outer shell (120, 252) stands out from the coupling part (101, 251) when a walking movement takes place in a heel region (125, 307) and again this can be lowered, while the coupling part (101, 251) in the binding (200) is fixed, wherein the outer shell (120, 252) about a geometric axis (A) transverse to a shoe longitudinal direction is pivotally characterized in that the geometric axis of rotation ( A) so from a before Erer tip of the outer shell (120, 252) is arranged offset back that by the longitudinal position of the geometric axis of rotation (A) in an interior (423) for receiving the foot in the outer shell (120, 252) has a front (116, 425) and a rear partial space (117, 426) is defined and in a lifting of the heel region (125, 307) from the coupling part (101, 251) in a rotation phase of the walking movement, an at least partial descent of the front part space (116) of the outer shell (120, 252) in an inner space (118, 121) of the coupling part (101, 251) takes place. Shoe according to claim 1, characterized in that the coupling part (101, 304) is frame-shaped and a frame-like enclosed opening (121) of the coupling part (101, 304) forms the inner space (118, 121), wherein the outer shell (120, 305 ) at least partially in the interior (118) of the coupling part (101, 304) is arranged and on both sides of the coupling part (101, 304) is enclosed like a frame. Shoe according to one of claims 1 or 2, characterized in that the geometric axis of rotation (A) above a bottom (114) of the outer shell (120) at the level of the ball joint of a foot held in the shoe is arranged. Shoe according to one of claims 1 to 3, characterized in that areas of the front partial space (116, 425) which at lowered heel region of the outer shell (305, 402, 502, 602) at the same height with the axis of rotation (A) above a shoe bottom lie, be swung closer to the shoe bottom when descending. Shoe according to one of claims 1 to 4, characterized in that the connection of the outer shell (305, 402, 502, 602) with the coupling part (304, 401, 501, 601) is designed such that in a bending phase of the walking movement, the outer shell (305, 402, 502, 602) is deformed in at least one elastic region (406, 506, 606). Shoe according to claim 5, characterized in that upon lifting of the heel region from the coupling part (304, 401, 501, 601), only the rotation phase and then the bending phase follows. Shoe according to one of claims 1 to 6, characterized in that the connection of the outer shell (502) with the coupling part (501) is formed such that in addition to the rotational movement about the first geometric axis of rotation (A), a further rotational movement about a second geometric axis of rotation (G) is provided, wherein the second axis of rotation (G) from the first axis of rotation (A) is spaced. Shoe according to one of claims 1 to 7, characterized in that the shoe (100, 250, 300) a locking device (132, 133, 285, 318, 322) is present, which is a locking of the outer shell (120, 252, 305) opposite the coupling part (101, 251, 304) in a downhill position, in which the heel region (125, 307) of the outer shell (120, 252, 305) is completely lowered onto the coupling part (101, 251, 304) and firmly connected thereto. Shoe according to claim 8, characterized in that the locking device allows locking of the outer shell in further positions relative to the coupling part, wherein the other positions differ by the distance of the heel region of the outer shell from the coupling part. Shoe according to one of claims 8 to 9, characterized in that the locking device (132, 133, 285, 318, 322) in the heel region (112) of the shoe (100, 250, 300) is present. Shoe according to one of claims 8 to 10, characterized in that the locking device (132, 133, 318, 322) comprises a pivotable lever (130, 301) which on the coupling part (101, 251, 304,) of the shoe (100, 250, 300) is articulated. Shoe according to one of claims 8 to 11, characterized in that a damping device is provided on the shoe, which allows in at least one of the locking positions a resiliently damped pivoting of the heel portion of the outer shell relative to the coupling part, wherein the resiliently damped pivoting takes place about the damped locking position. Shoe according to claim 12, characterized in that the damping device in the locked position is effective, in which the heel region of the outer shell is completely lowered onto the coupling part, in particular in the downhill position. Shoe according to one of claims 12 to 13, characterized in that the damping device is provided on the coupling part. Shoe according to one of claims 12 to 14, characterized in that the damping device is integrated in the locking device. Shoe according to one of claims 1 to 15, characterized in that on the shoe (250, 300, 349) a support lever (262, 301) is present, which preferably two or more in the trajectory of the unlocked outer shell (252, 305) swing, a climbing aid forming supports (264, 314, 315, 316) for the outer shell (252, 305), which by supporting the outer shell (252, 305), the lowering movement of the heel region (125, 307) of the outer shell (252, 305) Limit direction coupling part (251, 304). Shoe according to claim 16, characterized in that the support lever (262, 301) on the coupling part (251, 304, 350) is articulated. Shoe according to one of claims 1 to 17, characterized in that the outer shell (120, 252) comprises a foot shell (104, 277) and shaft shell (123, 276), so that in the outer shell (120, 252) received foot substantially is arranged in the foot shell (104, 277) and the shaft shell (123, 276) encloses substantially a part of the calf, while the shaft shell (123, 276) on the foot shell (104, 277) is articulated pivotably in an ankle region , Shoe according to claim 18, characterized in that a locking device is provided, which allows the fixing of the shaft shell relative to the foot shell. Shoe according to one of claims 8 to 11 with claim 19, characterized in that the locking device is integrated in the locking device. Shoe according to one of claims 1 to 20, characterized in that the shoe (100, 250) has a running surface (138, 256) which in each case has a convexly arched portion (109, 110, 259) in a front end region and in a rear end region , 260). Shoe according to one of claims 21, characterized in that the running surface (100, 250) comprises sections (141, 142) formed on the outer shell (120) and sections (109, 110, 259, 260, 354) of the are formed on the coupling part (101, 251, 304), and the sections (109, 110, 141, 142, 259, 260, 354) together form the running surface (138, 256). Shoe according to one of claims 21 or 22, characterized in that the convex portions (109, 110, 259, 260) are substantially formed on the coupling part (101, 251, 304). System comprising a shoe and a binding comprising a shoe (100, 250) according to claims 20 to 23 and a binding which, for holding the shoe (100, 250), has a toe piece (201) formed in the area of the toe and a piece for holding the shoe Shoe (100, 250) in the area of the shoe heel (112) formed heel pieces (202, 330), wherein the heel block (202,330) has an open position in which the shoe (100, 250) inserted into the binding (200) or from the binding (200) can be deployed, and the binding (200) has a closed position in which the binding (200) is located when the shoe (100, 250) is held in the binding (200), wherein the toe piece (201 ) and the heel jaws (202,330) each have a bearing surface (205, 206) and thereby the bearing surfaces (205, 206) to corresponding tread portions (109, 110, 141, 142, 259, 260) of the shoe (100, 250) formed complementary are, in particular the support surfaces (205, 206) are concaved, so that in the binding (200) held shoe (100, 250), a front tread portion (109, 141, 259) of the shoe (100, 250) rests on the support surface (205) of the front jaw (201) and a rear tread portion of the shoe (100, 142, 250) on the support surface (206) of the heel pad (202, 330) rests.

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