AT508684B1 - SKI, ESPECIALLY CROSS-COUNTRY SKI, WITH AT LEAST ONE RETURN AGENT - Google Patents

Abstract

The invention relates to a ski (1), in particular a cross-country ski, with at least one means for Rückgleithemmung, comprising a with respect to the ski longitudinal direction in the middle section, if necessary attachable climbing or repelling aid (6, 6 ', 6 "), which at least one fell - or brush-like or a scale profile-like Rückgleithemmer (4, 4 ', 4 ") on a comparatively rigid and dimensionally stable support member (5, 5', 5") .The support element (5, 5 ', 5 ") is in an elongated, in the longitudinal direction running recess (7) in the tread (8) of the ski, if necessary removably attached, wherein the support element (5) in the vertical direction to the base of the recess (7) slidably into the recess (7) is inserted and the fur or brush-like or from the scale-profile-like Rückgleithemmer (4, 4 ', 4 ") facing away from the support element (5) has at least one first magnetically active surface, which at least one further En magnetically effective surface at the bottom (11) of the recess (7) is displaceable in and out of magnetic attraction. Alternatively, the side of the support element (5, 5 ', 5 ") facing away from the hide or brush-type or from the scale-profile-like rear-side inhibitor (4, 4', 4") has at least one first adhesive or Velcro surface (9), which with at least one another adhesive or Velcro surface (10) on the base (11) of the recess (7) in and out of contact or intervention is displaceable.

Description

Austrian Patent Office AT508 684B1 2012-06-15

Description: The invention relates to a ski, in particular a cross-country ski having at least one means for Rückleithemmung, as indicated in the preamble of claim 1 or 2, and a climbing or kicking as defined in the preamble of claim 29.

From DE 27 52 397 A1 a generic ski is disclosed with a means for Rückgleithemmung, wherein the means for Rückgleithemmung is removed if necessary removably mounted in the outsole of the ski body. In this case, an elongated recess is provided in the ski sole, in which the means for Rückgleithemmung is required releasably attached. The elongated recess is formed by a U-shaped in cross-section element which is integrated in the ski structure and whose legs define the lateral boundary surfaces of the recess. In this U-shaped element is a substantially cuboidal element can be used, which has on its first flat side a brush or other Rückgleithem-Mendes means and on the opposite side has a smooth surface. The cuboidal element is designed as a turning part, so that either the non-slip surface or the smooth surface on the underside of the ski can be used. This turning part is connected via a positive connection with the skiseitigen, U-shaped member, if necessary, releasably connected. For this purpose, a respective longitudinal groove is provided on the inner surfaces of the two legs of the U-shaped element and on the two longitudinal side surfaces of the turning part is ever provided with these longitudinal grooves longitudinal projection provided in order to build a mutual, positive connection can. This positive connection in the manner of a tongue and groove coupling is produced as required by elastically resilient longitudinal walls of the turning part and released again. Depending on the orientation of the turnable about the longitudinal axis turning part relative to the ski body of the turning part provides a slip-back, which can be converted if necessary into a flush with the ski sole sliding surface, which can be waxed in the usual way. This prior art design has been found to be of little practicality.

The US 4,564,210 A describes a ski for off-road, which is also suitable for climbs. This ski has at the bottom of a longitudinal slot whose width is less than half the ski width. In this longitudinal slot sections of a fur-like climbing aid and Velcro sections are arranged alternately with respect to the longitudinal direction of the ski body. The hide-like climbing aid is permanently fixed in the longitudinal slot of the ski body by gluing it in or molded into it. The lower longitudinal edges of the ski body are formed by metal edges, which project from the underside of the ski body. A tread covering which improves the slipperiness of the ski body can be fastened between the metal edges and can be removed again as required. For this purpose, congruent aligned Velcro surfaces are formed on the back of the tread covering, which cooperate with the Velcro surfaces in the longitudinal slot of the ski body. Alternatively, the tread covering can be releasably secured to the ski base via magnetic action or via positive elements, such as snap elements or tongue and groove elements, as needed. This embodiment has been found to be of little practicality. In addition, the Velcro surfaces, magnets or snap connection with removed sliding or tread covering, i. with activated climbing aid, in the medium term impaired or worn.

The CH 244 368 describes a ski body on the underside of a raceway groove is provided which has coupling members for positive connection with corresponding coupling members on a climbing skin. In particular, the raceway groove can be formed by a rail element whose projections or recesses interact with a corresponding form-fitting element on a reverse-inhibiting climbing skin. The handling of this as needed mountable or removable slip-back protection is reasonable only for a person or group of users with sufficiently high skill.

A ski body is known from WO 2004/064949 A1, on the tread of which a rear-facing fur strip can be fastened by gluing on. In order to avoid unintentional detachment of the ski tip facing the front end of the fur strip, spoiler or. Clamping arrangements provided with which the front end portion of the climbing skin can be suspended and clamped in a recess in the tread. Thus, although a reliable connection between the climbing skin and the ski body can be created, but the corresponding spoiler or clamping arrangements cause increased costs and manipulation.

Also from DE 20 2005 010 571 U1 a aufklebbarer on the tread of a ski fur strip is known, which serves as a repellent or climbing aid. At skispitzenseitigen end of this fur strip a covering this end plate is provided, which is firmly connected to the fur strip and the free end protrudes beyond the skispitzenseitige end of the fur strip. This front plate in this case represents a spoiler or deflector element in order to avoid inadvertent detachment from the tread during use of the ski as possible. The handling of sticky fur strips on the backside is difficult and requires some practice. In addition, only in the presence of sufficiently dry or pretreated treads a good adhesion between the climbing skin the ski body can be achieved.

WO 99/28007 A1 describes a ski-like gliding device, which is composed of several individual parts, in particular of a front, a middle and a rear part. The middle part takes on the top of the binding device for a sports shoe. At the front end of the middle part is the front part and at the rear end of the middle part, the rear part is positively fastened. A longitudinally elastic climbing skin is connectable to the ski tip side end of the front part and to the end remote from the middle part of the rear part. The longitudinally elastic climbing skin prevents unintentional decoupling of the three Gleitgeräteteile and provides a slip-back for walking on slopes.

EP 1 787 692 A2 and AT 008 739 U1 disclose skis, in particular touring skis, in which the climbing skin is releasably secured by means of at least one permanent magnet. The front ends of the climbing skins extend into the upwardly rising portion of the ski scoop, so that they are positioned elevated with respect to the snow background. The risk of detachment of the relative to the usual direction of movement, the front end of the climbing skin of the ski body is therefore marginal. In addition, a generously dimensioned fastening means for the front end of the climbing skin can be carried out by this climbing skin ending in the raised blade section. The climbing behavior of such skis is usually satisfactory due to the running over the entire ski length climbing skin. Its sliding behavior, in particular during the overcoming of intervening flat pieces or slope sections is, however, unsatisfactory. The handling of the shapely or unstable climbing skin requires practice and a certain amount of skill. In addition, the respective assembly and disassembly operations are relatively complex or time consuming.

Also EP 1 882 502 A2 discloses a ski, in particular a touring ski, and a climbing skin detachably connected thereto. The climbing skin is detachably attached directly to the underside of the sliding lining of the ski, wherein it is magnetically connectable to the ski. For this purpose, a magnetic film or layer can be integrated in the ski. The climbing skin comprises ferromagnetic means, such as woven, metallic threads or wires. It was also proposed to sew several flat magnets into the climbing skin. Also, this embodiment is less practicable in terms of handling and there is also the risk of snow accumulation between the climbing skin and the ski body and also with full-surface, magnetic interaction between the climbing skin and the ski body and subsequently the problem of gradual detachment of the climbing skin. In addition, the integration of magnetically active films or layers in the ski construction is technically problematic or costly. Furthermore, the handling or attachment of the form-flexible climbing skin in practice for many people is problematic, especially when due to cold, the wearing of 2/29 Austrian Patent Office AT508 684B1 2012-06-15

Gloves is required. In addition, the proposed climbing skin with woven, metallic threads or sewn flat magnet is relatively expensive.

FR 2 792 213 A1 describes a ski, in particular a touring ski, which has an outsole designed as a turning part. The first flat side of the outsole has a climbing skin, while the opposite flat side is designed as a sliding coating. This turning part extends almost over the entire length and width of the ski body. In the two longitudinal side walls of the outsole each groove-like depressions are formed, which are to be offset with mutually facing projections on the inner sides of the control edges of the ski in positive engagement. To selectively activate the climbing skin or the sliding surface of the outsole, the blade portion of the ski body fold down and push the outsole with appropriate orientation, starting from the blade portion towards the ski end, on the lateral projections on the control edges, so that a positive connection between the ski body and the outsole is built. In addition, the outsole is secured by bolt connections in the blade area against displacement in the ski longitudinal direction. Furthermore, magnets may be provided with which the central portion or the middle portion of the outsole is additionally connected to the ski body. This prior art design has little practicality. In addition, the production of such a ski body is technically complex and generally relatively expensive. The threading or making the positive connection zwisehen the ski body and the reversible outsole is also time-consuming and can be a long-term jam-free longitudinal guide between the outsole and the ski body can not be guaranteed. In addition, this running as a turning part outsole is connected to the ski body only if it extends at least to the tip of the ski or runs over the entire longitudinal extent of the ski, otherwise threading the outsole is not possible in the skikörperseitigen guide rails.

The US 5,292,147 A1 describes a generic ski, especially a cross-country ski, with a recess in the tread into which a mounted on a support plate means for Rückgleithemmung can be used. The support plate is held by friction or latching in a downwardly open housing which is fixedly secured in the Laufflächenausnehmung. According to the drawings (FIGS. 16a, 16b), this support plate can be slidably inserted normal to the base surface of the recess. As an alternative to this frictional connection or latching or snap connection, it has been proposed to provide a form-fitting groove / tongue connection (FIGS. 17a-17c), wherein an insertion or threading operation into the recess on the ski side or into the lateral grooves of the recess ski-side recess a reliable mounting of the support plate to be achieved. Both the frictional coupling, the snap connection, as well as the positive coupling by means of tongue and groove elements is not practical or under adverse ambient or. Conditions of use little satisfactory.

The present invention is based on the object to provide a ski, especially cross-country skis, whose means for Rückgleithemmung is as simple as possible attachable or interchangeable or renewable and which nevertheless a reliable, secured against unwanted self-detachment attachment of the back-inhibiting agent on the tread of the ski body allows. Another object is to provide a corresponding climbing or kicking aid.

This object of the invention is achieved by a ski, especially a cross-country ski, with at least one means for Rückgleithemmung, which includes a respect to the ski longitudinal direction in the middle section, if necessary attachable climbing or repelling aid, which at least one filigree or brush-like or a shingled profile-like Rückgleithemmer on a comparatively rigid and dimensionally stable support member comprises, which is in an elongated, running in the ski longitudinal recess in the tread of the ski as needed removably attached, wherein the support member is slidably inserted into the recess in the vertical direction to the base of the recess and the filing - or brush-like or facing away from the scale profile-like Rückgleithemmer page 3/29 Austrian Patent Office AT508 684 B1 2012-06-15 of the support element has at least one first magnetically active surface, which may with at least one other netisch effective surface at the bottom of the recess in and out of magnetic attraction can be displaced, or wherein the support element in the vertical direction to the base surface of the recess is slidably inserted into the recess and the side facing away from the filigree or brush-like or scaly profile-side Rückgleithemmer side of the support element at least a first adhesive - Has or Velcro surface, which is displaceable with at least one further adhesive or Velcro surface at the bottom of the recess in and out of contact or engagement. The support member is elastically compressible or shortened with respect to its longitudinal direction and urged in the inserted state in the recess with elastic bias against a wall surface at least one end face of the recess.

A resulting from the subject invention according to the features of claim 1 or 2 advantage lies in the fact that a relatively easy or comfortable to handle module is created by the structural combination of a felloder brush-like or a scale profile-like Rückgleithemmers with a support element, which is particularly easy and can be reliably attached to a corresponding ski body as a climbing or kicking aid. An appropriate assembly process can be performed quickly and easily by laymen. In particular, no special training or exercise is required to make a mounting or dismounting, in particular an exchange of climbing or kicking aid in relation to the ski body can. The corresponding processes can be carried out intuitively and the function or the interaction of the corresponding components is self-explanatory even for technically unavailable persons or users. Despite the ease of use of this modular climbing or kicking aid in terms of their assembly and disassembly, it is sufficiently detachable connected to the ski body connectable. In particular, an undesired self-detachment or a gradual separation of the climbing or repelling aid from the ski body can be virtually ruled out. The forces occurring during use of the specified ski are transmitted primarily between the support element and the skiseitigen recess and received mainly by the support member or by the boundary walls of the recess. The adhesive or Velcro surfaces corresponding to one another have the primary task of maintaining or ensuring a planned relative position between the support element and the ski body or its recess. The detachment forces acting in the vertical direction to the running surface of the ski body during use of the ski can be easily absorbed by the cooperating magnetic or adhesive or Velcro surfaces. In particular, the vertical or separating forces acting on the modular climbing or kicking aid during the use according to the invention of the ski according to the invention are so small that the formed magnetic or adhesive or Velcro surfaces adhere to one another with sufficient holding force. A particular advantage is further, that especially a pedestrian or brush-type Rückgleithemmer can be particularly firmly or detachably connected to the support element and said components can form a functionally reliable and comfortable to handle unit. In any case, a filing or brush-type Rückgleithemmer which is to be mounted only on an adhesive layer directly on the tread of a ski, much more difficult to handle and with respect to unwanted detachment much more critical than the inventive design. In addition, it is advantageous that the optional attachment of a filigree or brush-like or a scale profile-like Rückgleithemmers on the tread of running as cross-country skis under certain snow conditions each represents a particularly advantageous, especially a particularly effective climbing or kicking.

The measures according to the invention, inter alia, the holding force and the reliability of the connection between the climbing or repelling aid and the ski body is further increased. Nevertheless, the handling, especially the assembly and disassembly process of climbing or repelling the ski body against the ski body continues to be done easily and quickly. Another advantage is that gap formation between the support element and the recess can be avoided and thus also rattling or whirling noises during the 4/29 Austrian Patent Office AT508 684B1 2012-06-15

Use of the ski can be excluded. Furthermore, a gradual accumulation of snow or ice between the support member and the skiseitigen recess is avoided, so that a proper or planned relative position between the climbing or repelling aid and the ski body is always guaranteed. In addition, this increases the reliability of the connection between the climbing or repelling aid and the ski body, after snow accumulation, which would exert a driving or wedge effect, are avoided as possible.

Another advantage are the measures according to claim 3, as this unwanted separation or separation tendencies between the climbing or repelling aid and the ski body can be counteracted in a simple manner. In addition, the climbing or repelling aid is first positioned exactly with each assembly process relative to the ski body and only subsequently connected to this. Inappropriate connection positions or inaccurate alignments between the climbing or kicking aid and the ski body are thus excluded. In addition, an undesirable accumulation of snow or ice between the support member and the recess is held back, whereby gradual separation tendencies or deterioration of the sliding properties of the ski can be avoided.

By the measures according to claim 4, a slidable insertion and removal of the support element or the climbing or repelling aid is accomplished with respect to the skiseitigen recess. After at least the lateral longitudinal sections of the support element and the skiseitigen recess can slide past each other almost without resistance and no mutual latching or mutual positive fit is present, the mounting and demountability of the climbing or repelling the ski body is much easier or improved. The separation protection of the climbing or kicking aid in the vertical direction to the running surface of the ski body is accomplished primarily by the magnetic forces or by the adhesive or Velcro forces between the climbing or repelling aid and the ski body. Without the mentioned attracting or holding forces, the climbing or kicking aid would fall out of the recess in the running surface at the latest during the use of the ski.

By the measures according to claim 5, on the one hand, the handling of the climbing or kicking aid can be improved. In addition, this makes it possible in a simple manner, with fix given size of a skiseitigen recess, i. a recess with predefined length or width dimensions, depending on the dimensions or thickness of the at least one boundary wall or in dependence on the size or extent of the at least block or plate-like extension, the characteristic or effectiveness of the modular climbing or kicking to vary or adapt. In particular, depending on the size or the areal extent of the at least one boundary wall or of the at least one block or plate-like extension of the support element, the remaining effective area of the backhoe inhibitor can be easily adapted to the respective requirements or individual needs. Thus, a first climbing or repelling aid with relatively small-area anti-backlash effect can be replaced by another climbing or repelling aid with a comparatively larger, anti-backlash effect, and vice versa. The respective surface portion of the at least one boundary wall or of the at least one block or plate-like extension can have approximately the same sliding properties as that of the other tread surface of the ski body. Alternatively, the surfaces of the boundary wall or of the at least one block or plate-like extension running substantially plane-parallel to the running surface of the ski body can also have a reverse-inhibiting effect, in particular scaly or saw-tooth-like profiles, or also have microstructures in order to increase the height. or sliding ability of the ski body to change individually or, if necessary, influence. For this purpose, an existing Steigoder kicker is merely to replace modularly by another climbing or repelling aid with the desired characteristic.

[0019] A further embodiment according to claim 6 is advantageous in that it provides a comparatively robust and easy-to-handle climbing or kick-off aid, after which some damage has been caused, especially in the case of a pirate ship. or brush-like Rückbeleithemmers can be kept behind. In particular, a tearing off or detachment of back-inhibiting hairs or fibers is counteracted especially in the edge portion of a filigree or brush-type Rückgleithemmers. The circumferential boundary walls also provide protection against premature wear or worsening of the anti-buckling effect of the climbing or repelling aid. In addition, the manageability of a correspondingly formed climbing or repelling aid is improved.

By applying at least one of the measures according to claim 7 a robust climbing or repelling aid is provided which is easy to transport, easy to handle and long-term operational. In addition, this ensures that a separation between the climbing or repelling aid and the ski body always takes place between the facing or associated Velcro surfaces and unwanted separation of the Klettelemen-tes is reliably avoided by the support element.

The measures according to claim 8, a particularly robust, modular climbing or repelling aid is provided, which even at high mutual connection or Velcro forces against the ski body also has no longer delamination phenomena.

The measures according to claim 9, a reliable, if necessary, activatable and deaktivbare connection between the modular climbing or kicking and the ski body is achieved. The procedure for connecting the corresponding components is intuitively recognizable and handling very simple. Optionally, even disassembly tools can be completely dispensed with. It is essential that solely by the holding or Velcro force of the corresponding Velcro surfaces a sufficiently strong and position-stable connection can be achieved. After the corresponding Velcro surfaces have a relatively small total thickness, the influence on the bending mechanical properties of the ski body is relatively low. In addition, a relatively small depth for the recess in the ski body is sufficient. Corresponding velcro surfaces are preferable to adhesive surfaces, since velcro surfaces are usable in the long term or long-term have a good adhesion and are less sensitive than adhesive surfaces.

Also advantageous is a development according to claim 10, as characterized the rückgleithem-mende effect of the climbing or repelling aid can be increased in a simple manner or changed in terms of their characteristics. In particular, the climbing or kicking aid can form at least one backward-inhibiting ramp or sawtooth shape on the tread of the ski in the state that has been secured according to the plan. This effect can be realized either by the orientation of the climbing or kicking relative to the tread of the ski and / or by appropriate shaping of the ski-side recess and / or the support element of the climbing or kicking aid, as in the claims 11, 12, 13 is marked.

The advantage of this is also the embodiment according to claim 14, characterized in that a rear and / or front repelling edge is created, with which or with which depending on the particular needs or individual desires the rebar-inhibiting effect of the climbing or repelling aid in the direction of Ski longitudinal axis can be moved forward or backward. Furthermore, the number of repulsion edges and thus the extent of Rückgleithemmung can be easily increased and decreased, so that a better adaptation to the particular conditions or the individual wishes is possible.

According to an embodiment as described in claim 15, a recess is provided in the ski body, the dimensions of which are sufficiently precise in order to build a possible gap and possible jam-free connection between the modular climbing or kicking and the ski body. In addition, a cutout ensures high reproducibility and the simplest possible and cost-effective production of the ski body. In addition, during the production phase, individual ski bodies can be produced or prefabricated in a simple manner without a cutout, and structurally identical ski bodies can be produced with a milled recess, as required, by virtue of the fact

Milling is carried out in a subsequent or final production step. As a result, production-related and logistical simplifications can be achieved.

Also advantageous are the measures according to claim 16, as characterized in the running surface of the ski a recess can be created with sufficient depth, without significantly weaken the strength-relevant lower flange of the ski body, in particular to belittle. In particular, this makes it possible to achieve or maintain an optimally optimal, in particular homogeneous course with regard to the bending characteristic of the ski body.

By the measures according to claim 17, the distance layer those forces which auftre-th in the use of the ski transversely to the ski longitudinal direction, but especially in the ski longitudinal direction, and act between the climbing or repelling aid and the ski body, are reliably absorbed. Thus, signs of wear or material compression in the tread surface, in particular at the boundary edges around the recess, be kept behind.

By the measures according to claim 18, a Skisohlenkonstruktion is created in which the outer side surfaces of the spacer layer form lower portions of the side surfaces of the ski body or so-called side cheek elements of the ski body. On the one hand, the manufacture of the ski body is kept as simple as possible. In addition, a reliable connection is achieved in the relatively narrow, remaining longitudinal or edge sections on both sides of the recess, in particular a high-strength bond between the tread covering and the spacer layer allows.

Another advantage is an embodiment according to claim 19 and / or 20, characterized in that the support element in the inserted state in the recess exerts a bias against the boundary surfaces of the recess, so that an improved connection or a longer-term maintenance of the scheduled connection between the corresponding Velcro or adhesive surfaces can be achieved. In particular, in this way the end sections and / or the middle section of the support element in the state connected to the ski body can be pressed with constant preloading force against the respectively assigned surface sections of the recess, so that an undesired lifting of the hook and loop connection can be counteracted. In addition, a possible play or wobble-free connection between the climbing or repelling aid and the ski body can be achieved.

Also, by the measures according to claim 21, the climbing or kicking aid, in particular the support element, are secured in a simple manner against unwanted detachment relative to the ski body. In particular, when the recess has an undercut on at least one front end, in which a corresponding extension of the support element can be inserted in a form-fitting manner, the quality of connection between said elements can be significantly increased. In connection with an arcuate in the state of rest or biased in the installed state support element, the connection quality can be increased again without structurally complex security measures or time-consuming and complicated operations are required in terms of handling.

By at least one of the measures according to claim 22, a magnetic attraction between the climbing or kicking and the recess in the ski body can be created, which is sufficient to withstand the forces or separation moments occurring during use of the ski can. In particular, by attaching at least two magnetically attracting permanent magnets or by attaching at least one permanent magnet, which is interactible with at least one ferromagnetic material or with at least one magnetically attractable element, a reliable, yet easy or quickly detachable connection between the climbing or kicking aid and the ski body are created.

According to the advantageous embodiment according to claim 23 or 24, the at least one magnetically attractable, ferromagnetic material or the passive element at the Austrian Patent Office AT508 684B1 2012-06-15 is formed or in the support member, while the magnetically active Element, in particular the at least one permanent magnet is provided on the ski side. This allows the creation of the most cost-effective systems possible. In particular, different types or types of climbing or repelling aids can be created relatively inexpensively and purchased relatively inexpensively by the end user. The comparatively more expensive permanent magnets are assigned to the skis and thus financed by an end user only once, after usually only one ski body is required, which can be better adapted to different conditions of use in the episode by means of various climbing or repelling aids.

Especially if the support element is arcuate executed in the initial state and biased in the installed state, or if the support member has a longitudinally arcuate adhesive or Velcro surface, the development according to claim 25 facilitate assembly or disassembly with respect to the ski body , In addition, an exact, relatively tension-free connection between the support element and the ski body can be created thereby. In particular, sections can thereby be created which represent free-running compensation zones between the support element and the ski body or its recess.

Also by the measures according to claim 26, a sufficiently reliable and easy to build and detachable connection between the support member of the climbing or repelling aid and the sliding board body can be created. A frequent bonding and solubility is achieved by known per se adhesive layers, as they are also used for attachment of standard climbing skins treads, easily.

By the measures according to claim 27 it is ensured that the applied on the support member, permanently tacky and non-hardening adhesive layer, a possible strong adhesion adhesive connection with the ski body, in particular with the base of the recess can build.

Finally, an embodiment according to claim 28 is advantageous because it can be selectively activated and deactivated or attenuated the return-gliding effect of a filigree or brush-like or a scaly Steigoder kicker. In particular, the anti-buckling effect of the climbing or kicking aid can, if necessary, also be reduced to a sliding-inhibiting effect, i. be converted into a braking action for the ski body during forward or downward movements. Especially for beginners or persons at risk of injury, driving on slopes or overcoming hard or icy sections of the route can be made easier or more pleasant. Above all, felloder brush-like or scaly profile-like climbing or repelling aids usually have a unidirectionally acting Rückgleithemmung so that they hardly develop a braking effect in opposite direction of use or in reverse relative movement with respect to the ground and have relatively good sliding properties. In particular, the usual, alternating climbing and sliding effects of a ski, in particular a cross-country ski, can be reversed or reversed as needed.

The object of the invention is also achieved by a climbing or repelling aid according to claim 29. The thus achievable technical effects and advantages can be found in the foregoing description parts.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

In each case, in a highly simplified, schematic representation: FIG. 1 shows a ski, in particular a cross-country ski, with a climbing or kicking aid, which can be attached detachably as required, within the longitudinally central section of the ski; Fig. 2 is a climbing or repelling aid in Bindungsmontage- or Schuhaufstandsbe rich ski in an angular orientation to the tread of the ski body; 29.8

Austrian Patent Office Fig. 3 Fig. 5 Fig. 6 Fig. 6 Fig. 8 Fig. 9 Fig. 9 Fig. 10 Fig. 11 Fig. 12 shows a different angular orientation of the climbing or kicking aid compared with Fig. 2; a cross section through the ski body according to the lines IV - IV in Fig. 2; a ski body having a recess in the outsole for selectively inserting various climbing or pushing aids; another embodiment of an as needed interchangeable climbing or repelling aid on the underside of a ski body in a longitudinal section in a simplified, partial representation; the ski body of Figure 6 in a view according to arrow VII in Fig. 6. a further embodiment of a need-connectable and detachable climbing or repelling aid for the underside of a ski body; the climbing or repelling aid according to FIG. 8 in the state connected to the ski body; a climbing or repelling aid which is displaceable with a ski-side recess in magnetic interaction; the ski and the climbing or kicking aid according to FIG. 10 when viewing the rear side of the climbing or kicking aid; a further embodiment of a climbing or repelling aid with at least one magnetically active surface in cross section; the support member of the climbing or repelling aid of FIG. 12 in bottom view in connection with magnetically active holding elements.

Introductoryly it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or identical component names, the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or identical component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.

1 to 3, a ski 1 is shown, which has at least one means for inhibiting or inhibiting backward sliding movements. Such a ski 1 belongs to the genus of so-called cross-country skis or cross-country skis, which are provided on the one hand for gliding and on the other hand for the easiest possible to manage slopes. The specified ski 1 can also be designed as so-called touring or mountaineering skis. That is, the ski 1 disclosed herein can be designed, on the one hand, as a cross-country ski for well-groomed or unpaved terrain, but also as a ski 1 for the practice of mountaineering sport.

Fig. 1 shows an embodiment of a generic ski 1, in particular a cross-country ski, which in a conventional manner in the middle section, i. in the binding mounting portion, a defined Vorspannhöhe 2 has. By this Vorspannhöhe 2 of the central longitudinal portion of the underside or the tread of the ski body in the unloaded state or in load conditions below a predetermined threshold to a planar surface is distant. This Vorspannhöhe 2 is relatively larger in cross-country skis or in so-called cross-country skis, as in so-called touring or Mountaineering skis. In touring or mountaineering skis, the longitudinal section in which there is a means for Rückgleithemmung is usually greater than in cross-country skiing or cross-country skis, in which this Rückgleithemmende longitudinal section also over the entire length of the tread of the ski body can extend.

With regard to the ski longitudinal direction is in a cross-country ski, which is the preferred ski 9/29 Austrian Patent Office AT508 684 B1 2012-06-15

Genus represents, at least in the middle section 3 of the ski basic body at least one means for Rückgleithemmung, i. a Rückgleithemmer 4 is formed. In particular, a Rückgleithemmender section 3 is provided at least in the region of a binding mounting zone or a shoe contact portion on the underside of the ski basic body, which is formed by at least one Rückgleithemmer 4 or at least one Rückgleithemmer 4 includes. This Rückgleithemmende section 3 usually extends in about more than a third of the ski length. Optionally, this section may also be made shorter or run almost over two thirds of the ski length. In any case, the Rückgleithemmende section 3 in relation to the total length of a ski, especially a cross-country ski, partially executed.

The Rückgleithemmer 4 is required, releasably secured to the underside of the ski body. According to an advantageous embodiment variant of the Rückgleithemmer 4 is executed filing or brush-like. In particular, the effective surface of the Rückgleithemmers 4 preferably be designed as a so-called climbing skin, which causes in a first direction of movement, in particular in a conventional direction of travel of the ski 1, the lowest possible sliding resistance to the ground and in a second, opposite direction as high as possible or Verkrallungswirkung against the ground provides, so that this Rückgleithemmende section 3 can act as a slip-back or as Steigoder kicker 6.

Preferably, the Rückgleithemmer 4 is formed by a fur-like element with a plurality of hairs or fibers. In order to increase its unidirectional braking or inhibiting effect, these hairs or fibers are systematically ordered, and they can also be slightly inclined relative to the ground or made angled.

This in itself relatively pliable or little dimensionally stable filament or brush-like Rückgleithemmer 4 is arranged on a comparatively rigid and dimensionally stable support member 5. By this support member 5, on which, for example, the filing or brush-like Rückgleithemmer 4 is fixed, a flat or elongated shape of the Rückgleithemmers 4 is ensured. That is, the fair or brush-type backlash hanger 4, by virtue of its connection with the support element 5, substantially retains a stretched, strip-like shape of defined dimensions. Consequently, the support element 5 can also be referred to as a support body for the relatively flexible, fur or brush-type Rückgleithemmer 4. This combination element consisting of the fur-like Rückgleithemmer 4 and the support member 5 is in its largely removed from the ski 1 state largely form-or. Dimensionally stable, this combination element has an approximately strip-like or plate-like basic shape.

The filing or brush-like Rückgleithemmer 4 is preferably permanently connected to the support member 5, in particular glued, welded, sewn, riveted and / or positively connected. The filing or brush-like Rückgleithemmer 4 and the support member 5 thus form an integrally formed climbing or kicking 6, which is, if necessary, releasably connected to the underside of the ski 1. In the state connected to the ski 1, the climbing or kicking aid 6 is at least partly accommodated in an elongated recess 7 running in the longitudinal direction of the ski 8 in the running surface 8 of the ski 1 or at least partially inserted therein.

It is expedient if the support member 5 is used for the filigree or brush-type Rückgleithemmer 4 with respect to the Skilängs- and Skiquerrichtung essentially without play in the recess 7. This means that the support element 5 is positioned and received without play, or at least approximately free of play, transversely to the ski longitudinal direction and in the longitudinal direction of the ski through the boundary walls or boundary surfaces of the recess 7. In order to avoid that the climbing or kicking 6, that is, the Rückgleithemmer 4 in combination with the support member 5, accidentally falls from the recess 7 or gradually dissolves from the recess 7, the side facing away from the Rückgleithemmer 4 side of the support element 5 with a first adhesive or Velcro surface 9 is provided, which with another adhesive or Velcro surface 10 at the bottom or base 11 of the recess 7, if necessary, in and out of contact or ATPO8 684B1 2012-06-15

Intervention can be brought. A holding force of the adhesive or Velcro surfaces 9,10 may be dimensioned such that the user can make a preferably tool-less assembly and disassembly of the riser or repelling 6 with respect to the ski body. The modular climbing or kicking aid 6, which encompasses at least the support element 5 and the backlash inhibitor 4 fastened thereon, is thus provided by the effect of corresponding velcro surfaces 9, 10, or alternatively by the effect of adhesive surfaces which can be brought into mutual contact the forces occurring during use of the ski 1 held sufficiently tear-resistant or detachable in the recess 7 at the bottom or in the tread 8 of the ski body.

The holding force or connection reliability of the climbing or pushing aid 6 within the recess 7 is achieved at least partially by the bonding forces between the adhesive or Velcro surfaces 9, 10. According to an advantageous development, the holding force between the climbing or kicking 6 and the skiseitigen recess 7 can be increased in part by clamping forces between outer surfaces of the support member 5 and associated boundary or wall surfaces of the recess 7. In this case, a kind of clamping or press fit or a backlash-free sliding between the support element 5 and the recess 7 is completely sufficient, so that an additional form-fitting connection, e.g. in the manner of a tongue and groove connection, between the side surfaces of the support element 5 and the wall surfaces of the recess 7 can be omitted entirely.

The predominant portion of the anti-backlash effect of the climbing or kicking 6 is achieved by the unidirectional braking effect or by the Verkrallungseffekt the Rückgleithemmers 4 against the respective substrate, especially against snow or ice. In particular, when the central portion 3 as possible over the entire surface in contact with the ground, a high degree of repelling force against the ground can be achieved in order to support the most impulsive or efficient repulsive movement in the direction of the usual direction of travel.

In order to further increase the Rückgleithemmung or the repelling effect of the modular climbing or repelling 6, the in the usual direction of travel - arrow 12 - related, rear end face 13 of the support member 5 may have at least one transverse edge 14, which an additional wedging or an additional, positive engagement of the ski 1 relative to the ground made possible by at least one transverse edge 14 of the support element 5 in the recess 7 as planned inserted state of the climbing or repelling 6 forms at least one repelling edge 15 against the ground, especially against snow surfaces as best seen in FIG. 2.

In order to achieve the at least one, effective against a snow ground Abstoßkante 15, the Rückgleithemmende underside of the Rückgleithemmers 4 or its support member 5 in relation to a longitudinal section through the ski 1 at an angle to the tread 8 of the ski 1 in a simple manner be aligned so that at least in relation to the usual direction of movement - arrow 12 - rear end portion of the Rückgleithemmers 4 or the support element 5 defines at least one repelling edge 15 relative to the ground. To achieve this in the longitudinal section through the ski body sawtooth-like contour on the underside of the ski 1, the support member 5 may be formed in a simple manner wedge-shaped in longitudinal section, as shown in Fig. 2 schematically and by way of example.

According to a further embodiment, in relation to the usual direction of movement - arrow 12 - front, lower end edge 16 of the support member 5 and the Rückgleithemmers 4 be positioned closer towards the ski core, as the rear, lower transverse edge 14 of the support member fifth Accordingly, a rear repulsive edge 15 and / or a front repulsive edge 17 can be created by a wedge-shaped design of the climbing or kicking aid 6 in a longitudinal section and / or by a wedge-shaped depth profile of the recess 7. The front repelling edge 17 is formed by the front, lower boundary edge 18 of the recess 7. In particular, in the transition section between the front end of the climbing or kicking 6 and the tread 8, the 11/29 Austrian Patent Office AT508 684B1 2012-06-15

Abstoßkante 17 may be formed. This front repelling edge 17 can in turn be created by a wedge-shaped contour in longitudinal section of the climbing or repelling aid 6 and / or the recess 7.

In summary, it should be noted that by an angular orientation of the climbing or repelling aid 6 in relation to the tread 8 of the ski body either only a front repelling edge 17 or only a rear repelling edge 15 or both a rear, and a front repulsive edge 15, 17 are formed can, as exemplified in Fig. 2. Depending on the configuration, a rear transverse edge 14 of the support element 5 or of the return track inhibitor 4 with respect to the usual direction of travel - arrow 12 - is raised or protruding relative to the running surface 8. Alternatively or in combination, the front boundary edge 18 of the recess 7 and the recess 7 receiving tread over the front, lower end edge 16 of the support member 5 and the Rückgleithemmers 4 project down or form a gradation and so the rückbeleithemmende, front Form repelling edge 17.

A further embodiment provides that the rear end portion of the climbing or kicking 6 flush with the tread 8 and terminates only and the front boundary edge 18 of the recess 7 defines a repelling edge 17, as shown in FIG. 3 by way of example is. However, depending on requirements or depending on the snow conditions, it is also possible to align the effective underside or the so-called grip surface of the climbing or kicking aid 6 parallel to the contact plane of the ski 1 or parallel to its running surface 8, as shown in FIG 6 or 9 has been schematically illustrated.

According to an advantageous development, the climbing or kicking 6, in particular its support member 5 together with the unidirectionally acting Rückgleithemmer 4, with respect to a perpendicular to the underside extending axis performed by 180 ° reversible, so that a certain end portion of the climb or Push-off aid 6 with respect to the usual direction of movement - arrow 12 - of the ski 1 can optionally represent the front and the rear end of the climbing or kicking 6. Thus, in a simple manner, as needed activation and deactivation or attenuation of Rückgleithemmenden effect of the underside of the climbing or repelling aid 6 allows. The recess 7 is designed such that it can receive the climbing or kicking 6 with respect to both orientations. For this purpose, the recess 7 and the climbing or repelling 6 is formed symmetrically with respect to a transverse division or median plane.

If in this case the climbing or kicking aid 6, in particular its support element 5 and the recess 7 are each wedge-shaped with respect to a longitudinal section through the ski 1 or respectively have support extensions and depressions, in a simple manner at least one sawtooth-like Ramp or the at least one repelling edge 15, 17 are selectively activated and deactivated. In particular, this can be done depending on the need or requirement, an angular orientation of the underside of the climbing or kicking 6 in an at least approximately parallel and stepless alignment of the underside of the climbing or repelling 6 in relation to the tread 8, and vice versa. This is possible as required or as desired by the user as well by simply turning the climbing or kicking 6 by 180 ° with respect to a perpendicular to the underside extending axis and by re-insertion into the skiseitige recess 7.

As has been illustrated in FIGS. 4 and 9, it is therefore also possible or may be expedient that the support element 5 or the backrest inhibitor 4 terminates flush with the running surface 8 during its condition correctly inserted into the recess 7 ,

According to an advantageous measure, however, the Rückgleithemmer 4, in particular a filigree or brush-like climbing aid, projecting relative to the tread 8, i. E. have a projection 19 and consequently protrude in the direction of the tread 8 in the downward direction, as shown schematically in Fig. 4. This supernatant 19 is usually in a range between 0.2 to 4 mm. FIG. 5 illustrates an advantageous embodiment or modification option for the generic ski 1. Here, the climbing or kicking 6 is provided as a removable module relative to the ski body. As a result, a specific embodiment of a climbing or repelling aid 6 can be replaced by at least one climbing or repelling aid 6 ', 6 ", which is different in its effect and / or construction. be replaced if necessary. The respective support members 5, 5 ', 5 " can be used in all climbing or repelling aids 6, 6 ', 6 " be executed identical. The individual support elements 5, 5 ', 5 " However, have structurally different or in their effect different Rückleithemmer 4, 4 ', 4 " on. In particular, a first Rückgleithemmer 4 may be formed filigree or brush-like and another, alternatively usable Rückgleithemmer 4 'may have a known climbing aid profiling 20. This climbing aid profiling 20 can be cut or milled into a plastic layer 2T, as it is usually also used for the actual tread covering of the ski body. In a manner known per se, this climbing aid profiling 20 comprises on the underside of the modular climbing or kicking aid 6 'with respect to a longitudinal section through the plastic layer 21' approximately sawtooth-like profiles or step ramps. The provided with a corresponding flake or step profile or with a microstructure plastic layer 21 'is permanently connected to the support member 5', in particular permanently bonded. While the plastic layer 21 'preferably consists of polyethylene, its support element 5' is preferably formed by polyamide.

Another embodiment of the modular climbing or kicking aid 6 " provides that their underside is protected by a plastic layer 21 " is formed, which corresponds in terms of the basic properties of the plastic layer to form the running surface 8 of the ski 1 substantially. The plastic layer 21 " can have a layer of climbing wax 22 on its effective underside and thus a further embodiment variant of a climbing or kicking aid 6 " form. However, if the plastic layer 21 " no riser 22 is applied, then the plastic layer 21 " also contribute to improving the sliding behavior of the ski 1. Thus, the climbing or kicking aid 6 " If necessary also contribute to the improvement of the sliding behavior of the ski 1. In particular, a provided for the classic cross-country skiing 1 can be converted by replacing the climbing or kicking 6 if necessary in a simple manner in a so-called skating-skis, and vice versa.

It is essential that a plurality of interchangeable, modular climbing or pushing off aids 6, 6 ', 6 " is present, which are selectable or as needed in the recess 7 of a ski 1 used and by means of the first adhesive or Velcro surface 9 on the support member 5, 5 ', 5 " with a corresponding adhesive or Velcro surface 10 on the base 11 of the shape and dimensions largely compatible, skiseitigen recess 7 in and out of contact or intervention are displaceable.

According to the embodiment of FIGS. 6, 7, the support member 5 for the Rückgleithemmer 4, in particular for a filigree or brush-like Rückgleithemmer 4 trough-or. trough-shaped. Accordingly, the support element 5 comprises a base plate 23 with at least two lateral boundary walls 24, 25. Preferably, the support element 5 is designed like a trough, so that it also includes boundary walls 26, 27 in the front and rear end portion. Between at least two opposing boundary walls 24, 25 and 26, 27 of the receiving area for a Rückgleithemmendes means, in particular for the filigree or brush-like Rückgleithemmer 4 is defined. The respective boundary walls 24, 25 and / or 26, 27 in the outer edge portions of the support element 5 increase inter alia the tear resistance of the Rückgleithemmers 4 relative to its support member 5. In particular, this is the security against unintentional detachment or shearing the Rückgleithemmers 4 of the support element 5 improved.

At least one end boundary wall 26, 27 of the support element 5 can also be embodied as a block-like or plate-like extension 28, 29. This at least one block-or plate-like extension 28, 29 improves the handling of the support element 5. In addition, by a spoiler-like course of the underside facing this underside of this continuation zes 28, as on best seen in Fig. 6 it can be seen, the interaction of the climbing or pushing aid 6 are improved with the ski 1. Thus, the at least one frontal extension 28, 29 with respect to a longitudinal section through the support member 5 form an angle to the running surface 8 extending bevel 30 through which the Rückgleithemmer 4 nearest end portion of the extension 28 with respect to the tread 8 of the ski raised or projecting is trained. As a result, the support element 5 can form a front repulsive edge 17 which increases the anti-backlash effect of the climbing or repelling aid 6 or of the ski 1. For this purpose, the block or plate-like extension 28 may be wedge-shaped or sawtooth-shaped in longitudinal section, wherein the repelling edge 17 is defined by a steep boundary edge of the recess in the support member 5, in which the filing or brush-like Rückleithemmer 4 is at least partially accommodated.

With respect to the usual direction of travel - arrow 12 - of the ski 1 rear extension 29 may also be designed as a stepped ramp with respect to a longitudinal section to further increase the Rückgleithemmende effect of the support member 5 and the climbing or kicking 6 , as shown by way of example and schematically in FIG.

On or in at least one extension 28, 29 may be performed at least one disassembly aid 31, with which a detachment of the climbing or repelling aid 6 is facilitated by the ski body. This dismantling aid 31 is preferably formed by a groove-like depression or by an undercut in order to facilitate, with the aid of a tool, for example a screwdriver, a detachment of the climbing or kicking aid 6 or of the support element 5 from the ski body. In particular, by using an auxiliary tool in conjunction with the dismantling aid 31 on the support element 5, a quick and effortless release of the support element 5 from the skiseitigen recess 7 can be achieved. This disassembly aid 31 can also improve the Rückgleithemmende effect of the climbing or pushing aid 6 by appropriate undercuts or by stepping, as can be clearly seen in FIGS. 6, 7. In particular, the dismantling aid 31 may be designed as a wedge-shaped recess 32 in longitudinal section, with respect to the usual direction of travel - arrow 12 - front edge 33 at least one repelling edge 15 against the ground, especially against snow or ice forms. In plan view of the support element 5 or in view of the ski 1 from below - as shown in FIG. 7 - the recess 32 in the support member 5 may also be wedge-shaped or funnel-shaped, in order to compaction of accumulating snow therein and thus improve the repelling effect or to achieve an improved Verkrallungseffekt compared to a snow background. The wedge or funnel shape of the recess 32 causes during the repulsion phase compression of accumulating in the recess 32 snow, whereby its compactness or strength is increased and the corresponding compressed snow wedge can provide higher abutment forces and thus can absorb higher repulsive forces without destroying or to be moved. Of course, it is also possible, several such wedge or. funnel-shaped recesses 32 provided on the underside of the support element 5. At least one of these, for example, row or column-like recesses 32 may, as described above, also be used as a disassembly 31, the use as a disassembly 31 is not mandatory and the function of an additional repelling aid or Rückgleithemmung be provided and implemented alone can.

According to an advantageous embodiment, the support member 5 is elastically compressible or shortened with respect to the longitudinal direction. This elastic compression path can be a few tenths of a millimeter up to a few millimeters. Alternatively or in combination with this, the support element 5 can have an elastically yielding compensation element 28a on at least one front end, which can also be formed by at least one end extension 28 of the support element 5. The elastic compression or shortenability of the support element 5 or the entire climbing or kicking aid 6 is expedient in order to support the support element 5 in the recess 7 according to plan with increased tear-resistance or holding force. By a certain length or width excess of the support element 5 in comparison to the recess 7 namely the support member 5 with elastic bias against at least one front end of the recess 7 urge and thus increase its separation resistance , In addition, this undesirable accumulation of snow or ice between the outer boundary surfaces of the support member 5 and the boundary surfaces of the recess 7 is held back. For this purpose, the support member 5 may be formed in total or only in sections of an elastomeric plastic.

Primarily, however, the holding force of the support element 5 within the recess 7 by the mutually corresponding adhesive or Velcro surfaces 9, 10 is applied. Preferably, the support element 5 is held by means of corresponding Velcro surfaces 9, 10 positioned within the recess 7. The first Velcro surface 9 on the side facing away from the Rückgleithemmer 4 side of the support member 5 is formed by a first Velcro element 34, which is permanently glued to the opposite of the Rückgleithemmer 4 side of the support member 5, sewn, welded or riveted. In particular, a permanent, tear-resistant connection between the first Velcro element 34 and the rear flat side of the support element 5 is provided. Preferably, the first Velcro surface 9 is formed by a strip-shaped Velcro element 34. At the back of the Velcro element 34, the support element 5 is attached. The support element 5 is preferably made of plastic, wherein the Velcro element 34 can be attached cohesively and / or can be injection-molded in a form-fitting manner. The further Velcro surface 10 corresponding to the first Velcro surface 9 at the base 11 of the ski-side recess 7 is formed by a further Velcro element 35 corresponding to the first Velcro element 34.

According to an advantageous embodiment, the support member 5 may also be designed in several parts or mehrgliedrig to affect the bending stiffness of the ski body as little as possible or to facilitate handling, in particular the disassembly with respect to the ski-side recess 7. In multi-part or multi-membered design, the support element 5 or the climbing or repelling 6 is performed caterpillar or ribbon-like.

In the illustrated embodiment according to FIGS. 6, 7, the recess 7 is formed by a cutout whose spatial dimensions correspond approximately to the dimensions of the support element 5. This means that the length, width and possibly also the depth dimensions of the cutout or recess 7 approximately correspond to the length, width and possibly the thickness dimensions of the support element 5. A thickness or thickness 36 of the strip or plate-like climbing or kicking aid 6 is at least 2 mm. A practicable thickness 36 ranges between 2 and 6 mm. The thickness 36 of the climbing or kicking aid 6 is thus usually greater than the thickness of the running surface 8 forming tread surface of the ski 1. A depth 37 of the recess 7 is thus usually greater than a thickness or thickness of the tread 8 forming tread of the ski 1. In order to reduce the risk of delamination of the ski structure or to avoid a critical weakening of a strength or stiffness-relevant lower flange 38 of the ski 1, an additional spacer layer 39 may be implemented in the ski construction. At least the base of the recess 7 is then formed by the spacer layer 39. The spacer layer 39 is arranged between the rear side of a running surface 8 forming the tread surface 41 facing a ski core 40 and the at least one strength-relevant lower flange 38 of the ski 1. The recess 7 is thus partially defined by the material of the spacer layer 39, that is, the spacer layer 39 forms a portion of the recess 7 and sections of wall surfaces 42, 42 'of the recess 7 are formed by the spacer layer 39. The spacer layer 39 distances the tread surface 41 of the ski body from the strength-relevant lower flange 38 of the ski body. The spacer layer 39 is preferably made of plastic and allows a high-strength connection, in particular bonding on the one hand with the elements of the lower belt 38 and on the other hand with the plastic of the tread 41. The Skikern 40 is formed for example of a honeycomb material or PU foam.

As further best seen in Fig. 5 it can be seen, the spacer layer 39, at least within the ski longitudinal section, in which the recess 7 is formed, have a width 43 which corresponds to the width of the tread 8 forming tread 41. A width 44 of the climbing or kicking aid 6 or of the support element 5 and a width of the depression 7 that is associated with this is expediently more than 70%, preferably about 90%, of the width 43 of the tread covering 8. Alternatively, the width 44 of the riser or repelling aid 6 also correspond approximately to the width 43 of the tread surface 41. This means that the Rückgleithemmer 4 can also be formed over the entire ski width and, accordingly, can develop a high anti-backlash effect. A usual width 44 of the climbing or kicking 6 amounts to 20 mm to 50 mm, preferably to about 30 mm. A practicable length of the climbing or kicking 6 is between 300 mm and 600 mm, preferably in about 400 mm. The longitudinal central portion of the climbing or kicking 6 is positioned in relation to the longitudinal direction of a cross-country ski in approximately congruent with the coupling member of a cross-country binding, as is schematically apparent from Fig. 1. The climbing or kicking aid 6 extends over a portion of the length of a cross-country skis, which is less than 50%, preferably about 20-25% of the ski length.

8, 9 is a further embodiment of a structural combination of a ski 1, in the concrete of a cross-country ski, illustrated with a modular, as needed interchangeable climbing or kicking 6. Here, too, the climbing or kicking aid 6 extends on the underside of the ski body only within a short range around the shoe uprising or. Binding mounting portion. That is, the climbing or kicking aid 6 does not reach into the blade portion and also not into the rear end portion of the ski body.

Here, the side facing away from the Rückleithithemmer 4 of the support element 5 and the climbing or repelling 6 in the removed state of the recess 7, that is, during the rest or inactive state of the support member 5, with respect to the longitudinal direction of the groove, in particular concavely curved. In particular, the climbing or kicking aid 6 or its support element 5 has an arcuately extending rear side, so that it is virtually banana-shaped in unmounted or not inserted into the recess 7, as is apparent from FIG. 8 by way of example. Expediently, in this context, at least one of the hook-and-loop surfaces 9, 10 extends only over partial sections, in particular only over the central longitudinal section of the support element 5 and / or the base of the ski-side recess 7, as can be seen by way of example in FIGS. 8, 9. In the alternative embodiment of adhesive surfaces which can be displaced in mutual contact, they likewise extend only over a partial section, in particular only over the central longitudinal section of the support element 5 and / or the recess 7. The distal end sections of the recess 7 and / or of the support element 5 have no adhesion - or connecting means on. This facilitates the assembly process and increases the quality of connection between the climbing or kicking 6 and the ski body.

The support element 5 may have at least one of its front ends a projection or an extension 45, 46 or alternatively a recess or recess, which or with at least one corresponding undercut or indentation 47, 48 or with at least one corresponding Extension in the recess 7 in and out of positive engagement is displaceable. An advantageous shaping is when at each of the front ends of the support element 5 projections 45, 46 are formed, which can engage in the inserted into the recess 7 state of the support element 5 in undercuts or depressions 47, 48 in the region of the front ends of the recess 7 , so that a detachment of the front end portions of the climbing or repelling aid 6 is held against the ski body hinan. The front-side undercuts or depressions 47, 48 in the skiseitigen recess 7 can be formed in a simple manner by opposite the base 11 of the recess 7 acute angled inwardly, frontal wall surfaces 42, 42 '. Such a coupling may be particularly useful when the support member 5 of the climbing or kicking 6 has an arcuate curvature or bias.

In particular, it is expedient, with respect to a longitudinal section through the ski body -according to FIG. 9 -to form a dovetail-like coupling between the distal front ends of the support element 5 and the distal front ends of the ski-side recess 7. This dovetail-type coupling, in conjunction with a supporting element 5, which is arcuately curved in the original state, permits a particularly practicable handling in the Austrian patent office AT508 684B1 2012-06-15

Reference to connecting operations between the climbing or kicking 6 and the ski body. In addition, especially the distal end portions of the climbing or kicking 6 are better secured against unwanted separation or deviation with respect to the tread 8 of the ski body. Adverse or undesirable braking effects during the sliding phase with the ski body can be kept behind. In the state of the climbing or kicking aid 6 inserted into the recess 7, the support element 5 is transferred into an at least approximately planar orientation, as best seen in FIG. 9. The corresponding Velcro surfaces 9, 10 or the alternative, mutual adhesive surfaces, or magnetically active surfaces, as described below, thereby effecting a maintenance of the straightened shape of the support element 5, as shown in FIG. 9 can be seen.

By curved in the original state arcuate and thus slightly shortened in the longitudinal direction of the longitudinal extension of the support element 5, this can be easily inserted into the dovetail-shaped recess 7 in longitudinal section, as can be seen from a synopsis of Fig. 8, 9. In order to achieve a permanent connection or to avoid an undesired detachment relative to the recess 7, the climbing or kicking aid 6 or its support element 5 is only to be pressed into the recess 7, so that in particular the longitudinal middle section of the climbing or kicking aid 6 is connected via the Velcro surfaces 9, 10 or via the corresponding adhesive surfaces with the base 11 of the recess 7. In adhesive- or adhesive-free training of the distal end portions of the support element 5 and / or the recess 7 - according to the illustrations in Figs. 8, 9 - this final connection or pressing operation can be carried out relatively clamped or tension free, after in the distal End portions of the support element 5 longitudinal compensation movements relative to the recess 7 can take place.

Instead of the partial Velcro connection between the support element 5 and the recess 7, it is also possible to provide a partial adhesive or magnetic connection, which can be activated and deactivated several times. In the case of the formation of adhesive surfaces, the first adhesive surface is formed by an adhesive layer 49 indicated by dashed lines in FIG. 8, which is arranged on the rear or flat side of the support element 5 facing the recess 7. This adhesive layer 49, which can be activated and deactivated several times, is formed by a permanently adhesive, non-hardening adhesive known per se in standard climbing skins. The further adhesive surface at the base of the ski-side recess may be formed by a corresponding adhesive layer or preferably by the plastic base 11 of the recess 7. In particular, the previously described spacer layer 39 with the adhesive layer 49 can enter into an adhesive connection which can be activated and deactivated as required.

Instead of the above-described adhesive or Velcro surfaces 9, 10 between the support member 5 and the skiseitigen recess 7, according to a particularly advantageous, in itself independent embodiment, a magnetic effect between the climbing or repelling 6 and the recess 7 in the ski body if necessary removable attachment of climbing or kicking 6 are used against the ski body, as is the embodiment of FIGS. 10, 11 can be seen schematically.

Also in this embodiment, the climbing or kicking 6 either a felloder brush-like, or - as shown schematically - a scale profile-like Rückgleithemmer 4 include. The respective Rückgleithemmer 4 is in turn fixed permanently on a plate or trough-shaped support member 5, in particular permanently glued. The support element 5 in this case has a higher flexural rigidity or dimensional stability, as a relatively shapely, filament or brush-like Rückgleithemmer.

The side or flat side of the support element 5 facing away from the backrest inhibitor 4 in this case has at least one first magnetically active surface 50, 50 ', 50 ". which is connected to at least one further magnetically active surface 51, 5T, 51 " at the base 11 of the recess 7, if necessary, in and out of magnetic interaction, in particular in and 17/29 Austrian Patent Office AT508 684B1 2012-06-15 is offset except magnetic attraction. This means that the support element 5 is held with the respective Rückgleithemmer 4 by the magnetic interaction between the support member 5 and the base within the recess 7 and secured against accidental falling out. The respective magnetic interaction, in particular the magnetic attraction between the magnetic or magnetically attracting surfaces 50, 50 ', 50 " and 51, 5T, 51 " In this case, it is so high that an undesired detachment of the climbing or repelling aid 6 with respect to the ski body can almost be ruled out. Namely, the magnetic forces only have to withstand the forces occurring vertically to the base 11 of the recess 7. These are relatively small in comparison to the forces running parallel to the running surface 8, which would cause a relative displacement between the climbing or pushing aid 6 and the ski body. These relatively parallel to the tread 8 extending relative forces, in particular the repulsion forces between the ski body and the snow ground are thereby reliably and easily absorbed by the at least partial inclusion of climbing or kicking 6 and the support member 5 within the skiseitigen recess 7. In particular, the corresponding magnetic forces or the previously described Velcro or adhesive forces are sufficient in order to withstand the interactions occurring between the climbing or kicking aid 6 and the ski body during normal use of the ski 1 such that undesired separations or disadvantageous gap formation are virtually eliminated can be.

It is also expedient if the support member 5 is slidably inserted into the recess 7 and equal movement of the recess 7 can be removed. This means that at least the longitudinal side walls of the support element 5 and the longitudinal side walls of the recess 7 have no form-locking connection and no reciprocal locking enter. If necessary, a simple, easily overcome positive-locking connection can be made between mutually facing end faces or front ends of the support element 5 and the recess 7, as was exemplified in FIGS. 8, 9. In particular, it is expedient, the support member 5 and the corresponding recess 7 form such that a maximum width 44 of the support member 5 within its various longitudinal sections of a clear width 52 of the recess 7 within their respective associated longitudinal sections corresponds, as shown in FIG. also from Fig. 5 can be removed. This ensures that the support member 5 is substantially gap-free and slidably inserted into the recess 7, without in the longitudinal side edges mutual form-fitting connections, which prohibit vertical relative to the tread 8 aligned relative displacements, must be activated and deactivated. As a result, a particularly rapid and effortless assembly and disassembly is achieved, wherein, depending on the respective magnetic, Velcro or adhesive forces, if necessary, no auxiliary tools for the disassembly process relative to the ski body are required.

The magnetically-interacting first and further surfaces 50, 50 '50 " and 51, 5T, 51 " may be defined by at least one permanent magnet 53, 53 ', 53 " and by at least one ferromagnetic element or material 54, 54 ', 54 " be formed. As best seen in FIGS. 10, 11, the first magnetically active surface 50, 50 ', 50 " of the support element 5 by at least one ferromagnetic element or material 54, 54 ', 54 " be formed on the side facing away from the Rückgleithemmer 4 side of the support element 5. Alternatively, the support element 5 for the Rückgleithemmer 4 may be at least partially made of ferromagnetic material, for example of metal. In particular, the support element 5 may be formed by a strip-shaped sheet metal element, wherein the respective Rückgleithemmer 4 is glued or sprayed on at least one flat side of the sheet metal element.

The ferromagnetic portions of the support element 5 and the at least one ferromagnetic element or material 54, 54 ', 54 " but can also be formed by metallic blocks or plates on the back 55 of the support element 5. The respective ferromagnetic elements 54, 54 ', 54 " or alternatively provided permanent magnets close preferably flush with the back 55 of the support element 5. 18/29 Austrian Patent Office AT508 684B1 2012-06-15

In particular, the respective ferromagnetic elements 54, 54 ', 54 " in recesses 56, 56 ', 56 " arranged the support element 5, as was exemplified in Fig. 11. The corresponding ferromagnetic elements or materials 54, 54 ', 54 " can be pressed with the support member 5, injected therein, glued and / or snapped form-fitting manner in the support member 5 in order to achieve a possible tear-off or detachment connection.

The further, in particular the ski-side arranged, magnetically active surface 51, 51 ', 51 " is preferred by at least one permanent magnet 53, 53 ', 53 " formed, which is secured to the base 11 of the recess 7. According to the advantageous embodiment according to FIG. 11, the at least one permanent magnet 53, 53 ', 53 " sunk at least approximately flush in the base 11 of the recess 7 and secured accordingly. Preferably, a plurality of permanent magnets 53, 53 ', 53 " clamped or by means of a press fit in recesses 57, 57 ', 57 " in the base 11 of the recess 7 is pressed or glued. The base surface or the base 11 of the recess 7 is preferably made planar. Optionally, the base 11 of the recess 7 or at least the visible surface of the permanent magnets 53, 53 ', 53 " coated with a coating layer to prevent wetting of the permanent magnets 53, 53 ', 53 " Keep away with water and thus minimize or avoid rust formation. A corresponding topcoat or finish may also be used with respect to the ferromagnetic elements 54, 54 ', 54 " be provided on the support element 5.

At least in the distal end sections, that is to say in the region of the front ends of the support element 5 and the recess 7, magnetic surfaces 50, 51 or 50 ", 51", which correspond to one another, ie can be set in magnetic attraction, are preferred. educated. Preferably, three magnetically-interacting pairs of magnetic surfaces 50, 50 ', 50 " and 51, 51 ', 51 " provided, wherein in the central portion and in the distal end portions each have a magnetically effective element pair is formed, as shown in Figs. 10, 11 can be seen.

The recesses 57, 57 ', 57 " for receiving the permanent magnets 53, 53 ', 53 " are preferably formed in the spacer layer 39 formed of plastic of the ski body. As a result, a reliable or tear-resistant fixing or pressing in of the preferably cylindrical or tablet-shaped permanent magnets 53, 53 ', 53 " be achieved. Such permanent magnets have high magnetic attraction forces and these embodiments of permanent magnets are relatively inexpensive and robust with regard to the assembly or installation process.

Instead of forming at least one permanent magnet 53, 53 ', 53 " in conjunction with at least one magnetically attractable, ferromagnetic material 54, 54 ', 54 " it is also possible to provide pairs of magnetically attracting permanent magnets, or alternatively the at least one permanent magnet 53, 53 ', 53 " Assign the support member 5 and the at least one ferromagnetic element 54a the ski body, as shown in FIGS. 12, 13 can be seen. In particular, in the base plate 23 of the support element 5 at least one recess 58, 58 ', 58 " in which at least one permanent magnet 53, 53 ', 53 " is pressed or embedded. This at least one permanent magnet 53, 53 ', 53 " can interact with at least one skiseitigen permanent magnet 53a or alternatively with at least one skiseitig arranged, ferromagnetic element or material 54a in magnetically attractive interaction and thus support the support member 5 and the corresponding climbing or repelling aid within the skiseitigen recess.

As best seen in Fig. 13 it can be seen, the support member 5 in its in the usual direction of travel - arrow 12 - related, front end wedge or be designed in an arrow shape to form spoilers or Abweiserflächen, which to a As low as possible sliding resistance of the ski body can contribute to the ground.

It is expedient if the at least one permanent magnet 53, 53 ', 53 " sandwiched between the base plate 23 of the support element 5 and a back-up hammer 4 connected to the support element 5, as schematically illustrated in FIG. 12. Thereby, the risk of damage or corrosion on the permanent magnets 53, 53 ', 53 " held back.

The exemplary embodiments show possible embodiments of the ski 1 or its climbing or kicking aid 6, wherein it should be noted at this point that the invention is not limited to the specifically illustrated embodiments of the same.

For the sake of order, it should finally be pointed out that in order to better understand the structure of the ski 1 or the climbing or kicking aid 6, these or their components have been shown partly unevenly and / or enlarged and / or reduced in size.

REFERENCE MARKET DESCRIPTION 1 Ski 2 Preload Height 3 Section 4,4 ', 4 " Backlash cam 5,5 ', 5 " Support element 6,6 ', 6 " Climbing or kicking aid 7 recess 8 running surface 9 adhesive or Velcro surface 10 adhesive or Velcro surface 11 reason 12 direction of movement 13 end face 14 transverse edge 15 repelling edge 16 front edge 17 repelling edge 18 boundary edge 19 protrusion 20 climbing aid profiling 21 ', 21 " Plastic layer 22 climbing wax 23 base plate 24 boundary wall 25 boundary wall 26 boundary wall 27 boundary wall 28 extension 28a compensation element 29 extension 30 starting slope 31 disassembly aid 32 recess 33 edge 34 Velcro element 35 Velcro element 36 thickness 37 depth 38 bottom flange 39 spacer layer 40 ski core 41 tread surface 42.42 'wall surface 43 Width 44 width 45 extension 46 extension 47 depression 48 depression 49 adhesive layer 50,50 ', 50 " Magnetic surface 51.51 ', 51 " Magnetic area 52 clear width 53.53 ', 53 " Permanent magnet 54,54 ', 54 " ferromagnetic material 55 back 56,56 ', 56 " Recess 57.57 ', 57 " Recess 58.58 ', 58 " Recess 20/29

Claims (29)

Austrian Patent Office AT508 684 B1 2012-06-15 Claims 1. Ski, especially cross-country skis, with at least one means for Rückgleithemmung, comprising in relation to the ski longitudinal direction in the middle section, if necessary attachable climbing or kicking aid (6, 6 ', 6 ";), which comprises at least one fur or brush-like o-the one screed profile-like Rückgleithemmer (4) on a comparatively rigid and dimensionally stable support member (5) in an elongated, running in the longitudinal direction recess (7) in the tread (8) of the Skis, if necessary, removably mounted, wherein the support element (5) in the vertical direction to the base surface of the recess (7) slidably into the recess (7) can be inserted, characterized in that the filing or brush-like or scaly profile-like Rückgleithemmer (4) side facing away of the support element (5) at least a first magnetically active surface (50, 50 ', 50 ") up which is displaceable into and out of magnetic attraction with at least one further magnetically active surface (51, 51 ', 51 ") on the base (11) of the recess (7), the support element (5) elastically compressing with respect to its longitudinal direction - Is formed or shortened and in the recess (7) inserted state with elastic bias against a wall surface (42, 42 ') on at least one front end of the recess (7) is urged. 2. Ski, especially cross-country skis, with at least one means for Rückgleithemmung, comprising a with respect to the ski longitudinal direction in the middle section, if necessary attachable climbing or kicking aid (6, 6 ', 6 "), which at least one fur or brush-like or a shed-profile-like Rückgleithemmer (4) on a comparatively rigid and dimensionally stable support member (5), which is in an elongated, extending in the longitudinal direction of the recess (7) in the tread (8) of the ski, if necessary removably attached, wherein the support element (5) in Vertical direction to the base surface of the recess (7) is slidably inserted into the recess (7), characterized in that the filigree or brush-like or scaly profile-like Rückgleithemmer (4) facing away from the support element (5) at least a first adhesive or Velcro surface ( 9), which with at least one further adhesive or Velcro surface (10) at the bottom (11) of the Recess (7) in and out of contact or engagement is displaceable, wherein the support element (5) is elastically compressible or shortened with respect to the longitudinal direction and inserted into the recess (7) state with elastic bias against a wall surface (42 , 42 ') is urged on at least one end face of the recess (7). 3. Ski according to claim 1 or 2, characterized in that the support element (5) with respect to the Skilängs- and Skiquerrichtung is substantially free of play in the recess (7) can be inserted. 4. Ski according to one or more of the preceding claims, characterized in that a maximum width (44) of the support element (5) within its various longitudinal sections of a clear width (52) of the recess (7) within their congruent longitudinal sections corresponds, so that the support element (5) slidably inserted into the recess (7) and slidably removable from the recess (7) can be removed. 5. Ski according to one or more of the preceding claims, characterized in that the support element (5) comprises a base plate (23) which in at least one on its longitudinal extension end portion extending at an acute angle to the plane of the plate boundary wall (26, 27) or a block - Has or plate-like extension (28, 29). 6. Ski according to one or more of the preceding claims, that the support element (5) is formed like a trough and a base plate (23) with peripheral boundary walls (24-27), between which the filigree or brush-like or the scale profile-like Rückgleithemmer (4) is included. 7. Ski according to one or more of the preceding claims, characterized in that a first Velcro element (34) forms the first Velcro surface (9) and on the relative to the Rückleithemmer (21). 4) facing away from the support element (5) permanently glued, sewn, welded or riveted. 8. Ski according to one of claims 1 to 6, characterized in that the first Velcro surface (9) by a strip-shaped Velcro element (34) is formed on the back of a support element (5) made of plastic material and / or molded is molded. 9. Ski according to one or more of the preceding claims, characterized in that at the bottom (11) of the recess (7) a Velcro element (35) is arranged, the Velcro surface (10) to the Velcro surface (9) formed on the support element (5) corresponding is. 10. Ski according to one or more of the preceding claims, characterized in that a in the usual direction of movement - arrow (12) - the ski related, rear end portion of the support element (5) at least one transverse edge (14) forms, which in the recess (7) fastened state of the support element (5) forms at least one Rückgleithemmende repelling edge (15) relative to the surface of the ski. Skis according to one or more of the preceding claims, characterized in that the surface of the support element (5) carrying the backrest inhibitor (4) is angled relative to the running surface (8) of the ski with respect to a longitudinal section through the ski, so that at least one with respect to the usual direction of travel - arrow (12) - the ski-related rear transverse edge (14) of the support element (5) or the Rückgleithemmers (4) forms a Rückgleithemmende repelling edge (15) relative to the surface of the ski. 12. Ski according to one or more of the preceding claims, characterized in that the supporting element (5) is wedge-shaped in longitudinal section. 13. Ski according to one or more of the preceding claims, characterized in that in relation to the usual direction of movement - arrow (12) - the ski front, lower end edge (16) of the support element (5) or the Rückgleithemmers (4) closer in Towards the ski core (40), as the rear, lower transverse edge (14) of the support element (5) or the Rückgleithemmers (4). 14. Ski according to one or more of the preceding claims, characterized in that on the usual direction of movement - arrow (12) - related rear transverse edge (14) of the support element (5) or the Rückgleithemmers (4) relative to the running surface (8) protrudes and / or a front end portion of the support element (5) or the Rückgleithemmers (4) relative to the tread (8) in the direction of the ski core (40) springs back, so that at least one Rückgleithemmende repelling edge (15, 17) is formed. 15. Ski according to one or more of the preceding claims, characterized in that the recess (7) is formed by a cutout whose spatial dimensions correspond approximately to the dimensions of the support element (5). 16. Ski according to one or more of the preceding claims, characterized in that the base (11) of the recess (7) by a spacer layer (39) is formed, which between a strength-relevant lower flange (38) of the ski and the Skikern (40 ) facing side of the tread (8) forming tread surface (41) is arranged. 17. Ski according to claim 16, characterized in that the spacer layer (39) limits a receiving volume of the recess (7) by subsections of lateral wall surfaces and of frontal wall surfaces (42, 42 ') of the recess (7) through the spacer layer (39 ) are formed. 18. Ski according to claim 16, characterized in that the spacer layer (39) at least within the longitudinal ski section with the recess (7) has a width (43) which corresponds to the width of the tread surface (41). 22/29 Austrian Patent Office AT508 684 B1 2012-06-15 19. Ski according to one or more of the preceding claims, characterized in that from the Rückgleithemmer (4) facing away from the support element (5) in the recess (7) remote state of the support element (5) with respect to the longitudinal direction concave curved is, or that the strip or plate-shaped support member (5) is curved arcuately formed in the longitudinal direction. 20. Ski according to one or more of the preceding claims, characterized in that the support element (5) has at least one end face an elastically resilient compensation element (28a) or is formed in elastically yielding. 21. Ski according to one or more of the preceding claims, characterized in that the support element (5) has at least one end face an extension (45, 46) or a recess which or which at least one corresponding recess (47, 48) or with at least one corresponding extension in the recess (7) in and out of positive engagement is displaceable. 22. Ski according to claim 1, characterized in that the at least one first and further magnetically active surface (50, 51) by at least two magnetically attractable effect permanent magnet (53, 53a) or alternatively by at least one permanent magnet (53, 53 ' , 53 ") and at least one ferromagnetic material or element (54, 54 ', 54 ") which can be magnetically attracted thereto are formed. A ski as claimed in claim 1, characterized in that the first magnetically active surface (50, 50 ', 50 ") on the support element (5) is secured by at least one ferromagnetic material or element (54, 54', 54") to that of the back yoke (4) facing away from the support element (5) is formed, or that the support element (5) for the Rücklgei-themmer (4) is at least partially made of ferromagnetic material, such as metal, or of a strip-shaped sheet metal part. Ski as claimed in claim 1, characterized in that the further magnetically active surface (51, 51 ', 51 ") is formed by at least one permanent magnet (53, 53', 53") located at the base (11) of the recess (11). 7) is fastened or at least approximately flush in the bottom (11) of the recess (7) sunk and fixed therein. 25. Ski according to claim 2, characterized in that extending at least one Velcro surface (9,10) only over portions of the support element (5) and / or the base of the skiseitigen recess (7). 26. Ski according to claim 2, characterized in that the first adhesive surface is formed by an adhesive layer of permanently tacky, non-hardening adhesive. 27. Ski according to claim 2, characterized in that the further adhesive surface at the bottom (11) of the ski-side recess (7) is formed by an existing plastic base of the recess (7). 28. Ski according to one or more of the preceding claims, characterized in that the climbing or kicking aid (6, 6 ', 6 ") is designed with respect to an axis perpendicular to its underside extending axis 180 °, so that a certain end portion the climbing or kicking aid (6, 6 ', 6 ") with respect to the usual direction of travel - arrow (12) - the ski optionally the front and the rear end of the climbing or Ab-bumper (6, 6', 6 " ) and thereby the re-hindering effect of the climbing or repelling aid (6, 6 ', 6 ") is optionally activated and deactivated or weakened. 29. climbing or kicking aid (6, 6 ', 6 ") comprising at least one fairy or brush-like or a scale profile-like Rückgleithemmer (4) on a comparatively rigid and dimensionally stable support member (5), which climbing or kicking aid (6, 6' , 6 ") in a recess (7) formed in the tread (8) of a ski, in particular a cross-country skis, is removably attached as required, characterized in that it is adapted for use in conjunction with a ski according to one or more of preceding claims is formed. For this 6 sheets drawings 23/29