EP1239928A1

EP1239928A1 - Brettartiges gleitgerat, insbesondere schi oder snowboard

Info

Publication number: EP1239928A1
Application number: EP00986850A
Authority: EP
Inventors: Bernhard Riepler
Original assignee: Atomic Austria GmbH
Current assignee: Atomic Austria GmbH
Priority date: 1999-12-22
Filing date: 2000-12-14
Publication date: 2002-09-18
Anticipated expiration: 2020-12-14
Also published as: AU2327901A; AT411734B; EP1239928B1; ATA215699A; WO2001045810A1; US7011331B2; US20030102651A1; DE50007938D1

Abstract

Die Erfindung betrifft ein brettartiges Gleitgerät (1), insbesondere einen Schi (2) oder ein Snowboard, aus mehreren zwischen einem Laufflächenbelag (4) und einer Deckschicht (6) angeordneten Lagen und einem Kernbauteil (15). Wenigstens eine Unterseite (19) des Kernbauteils (15) grenzt an einer unter den auftretenden Kräften elastisch nachgiebigen und rückstellenden Schicht (20) an. Das auf der elastischen Schicht (20) wenigstens in Vertikalrichtung zu einer Gleitfläche (3) des Gleitgerätes (1) nachgiebig gelagerte Kernbauteil (15) bildet an dessen Oberseite (23) die druckfesten Fortsätze (21) aus oder sind direkt an dessen Oberseite (23) separate, druckfeste Distanzelemente (22) abgestützt. Befestigungsschrauben (25) für Bindungsteile oder für deren Montageschienen oder Bindungsplatte(n) sind nur im Fortsatz (21) des Kernbauteils (15) bzw. zusätzlich noch im Kernbauteil (15) verankert oder sind bei Zwischenschaltung des Distanzelementes (22) die Befestigungsschrauben (25) ausschliesslich im Kernbauteil (15) lasttragend gehaltert.

Description

Board-like gliding device, especially ski or snowboard

The invention relates to a board-like gliding device, in particular to a ski or a snowboard, as described in claim 1.

DE 39 25 491 AI describes a ski with a plate arrangement integrated in the ski body, comprising at least one holding plate for fixing ski binding parts on the ski body. This holding plate, which is completely integrated in the ski body, extends in the longitudinal direction of the ski within the usual binding range, that is to say not much further than beyond the screw-in points in question for the binding. The aim of this is to ensure that this holding plate has as little interference as possible on the other parts or on the flexibility values of the ski. This holding plate, in which the fastening screws for the ski binding parts are to achieve the most hold, is arranged with the interposition of an elastomer layer in a recess on the top of a conventional wooden core of the ski body. At the top of the holding plate is inside the

Core recess also arranged an elastomer layer. The two thin elastomer layers cover the top and bottom of the holding plate as completely as possible and extend only slightly beyond the front ends of the holding plate in the longitudinal direction of the ski. Above the uppermost elastomer layer and below the wooden core is a generally customary metallic layer, in particular a thin aluminum plate, which the

Ski construction reinforced. In addition, this multilayer structure is provided in a known manner on the side surfaces and on the top with a cover layer and on the underside a tread covering ensuring good sliding properties is arranged. So that the holding plate to be integrated into the ski body has as little influence as possible on the flexibility values of the ski, it is suggested that these be made as short and thin as possible, but this affects the maximum achievable holding force for the ski binding parts on the ski body. In addition, the holding plate and the elastomer layers are exposed to relatively high mechanical point loads and compressive or tensile stresses due to the arrangement near the upper edge zone of the ski superstructure, which in extreme cases can lead to the binding holder being lifted off the ski surface after the small-area holding plates have been inserted into the about that! Load the layers arranged in the edge areas of the ski superstructure in a relatively small area and try to lift these layers or to force them in the vertical direction. In addition, the function of a compensating element for length displacements in ski deflections intended for the elastomer layers cannot be achieved, since the fastening screws for the ski manure parts due to the relatively large thickness dimension of the ski core compared to the uppermost layers, I inevitably also enter the ski core and thereby prevent relative shifts between the holding places and the ski core in the longitudinal direction of the ski.

The object of the present invention is to provide a high-strength anchoring option for binding parts in a board-type gliding device, which avoids selective peak loads of individual components of the gliding device and at the same time meets the actually opposite requirement of a binding holder that is as separate as possible from the gliding device construction.

This object of the invention is achieved by the features according to claim 1.

The advantage resulting from the features of the characterizing part of claim 1 is that a mountable mount on the glider according to the invention for holding a user's shoe is held starting from the core zone of the glider and that the binding support is almost entirely on the core zone of the glider limited. On the one hand, this achieves a very high holding torque for the binding parts on the gliding device. In particular, the relatively high remaining layer thickness above the core component holding a bond effectively counteracts lifting or even delamination of the layers or layers arranged above the core component. The fact that the bond holder or the binding holder is concentrated on the core zone of the gliding device means that the outer layers or edge zones in the sandwich structure are hardly influenced by the binding holder, in particular they are hardly weakened. In addition, these outer layers or

Edge zones are also no longer clamped to the core component by the binding part to be assembled, but a direct load transfer means is created by the extensions or by the spacer elements between the binding to be assembled and the inner or embedded core component and vice versa. After the core component extends almost over the entire length of the glider, those from a binding part to the

Forces and loads acting on the core component are largely distributed in the interior of the composite element, so that peak loads of individual parts of the gliding device starting from a ski binding part will no longer occur selectively. An essential advantage of the design according to the invention is that the binding is nevertheless decoupled to a certain extent from the construction of the gliding device by the elastic layer, so that the tread surface of the glider impact or vibrations are only transmitted in a damped form to the binding and thus to the foot of the user. The quasi-floating mounting of the core component in the center area of the glider also results in the best, chassis-like damping properties.

Due to the configuration according to claim 2, a binding part to be mounted on the gliding device of a two-part binding unit, preferably consisting of front and heel cheeks, can be supported directly or rigidly on the core component elastically integrated in the gliding device body. It is essential that no relative displacements can occur between the core component receiving the binding and the corresponding binding part after the core extensions or independent spacer elements have a high compressive strength.

The features according to claim 3 enable damping of impacts or vibrations acting on the tread of the gliding device, so that the peak loads acting on the foot of the user are reduced, resulting in fatigue-free use of the gliding device over a longer period of time.

Scratch or shear marks between the two realistically movable parts, which could lead to a blocking of the relative adjustment in the long term, are reliably designed by the embodiment according to claim 4.

A functionally reliable structure for achieving a sufficient relative adjustability between the two core components, which also ensures good mechanical cohesion of the individual parts, is achieved by the features according to claim 5.

The embodiment according to claim 6 enables a relative adjustability of the individual core components, whereby a defined starting or rest position of individual core components is always ensured by the force of the elastic layer.

According to the embodiment according to claim 7, commercially available elements can be used as a core component for the glider, whereby the production costs for such a glider can be kept low.

An optimal mean between high strength and lightweight construction can be according to Features can be achieved in claim 8.

The foam plastic characterized according to claim 9 to create an elastic embedding for the complete core element or for the core element responsible for the binding holder enables problem-free and inexpensive manufacture of the gliding device.

The embodiment according to claim 10 or 1 1 ensures precise and instantaneous control of the gliding device in accordance with the control forces acting on the gliding device by the user.

The configuration according to claim 12 prevents tension between the upper side of the gliding device and a binding part or a binding plate, as a result of which the gliding device largely retains the planned flexibility values even after the binding has been installed.

Tensions between the extensions or spacer elements and the layers or layers of the gliding device which are penetrated by them are eliminated by the further development according to claim 13 or 14, whereby a harmonious course of the bending characteristic of the gliding device is achieved.

The embodiment according to claim 15 prevents the ingress of moisture or foreign bodies such as Ice or snow in the interior of the glider, so that functional impairments or damage to the glider can be excluded.

Dynamic driving properties of the glider are guaranteed by the embodiment variant according to claim 16.

The sliding device according to the invention can be manufactured as simply as possible by an embodiment according to claim 17 or 18 and the desired effects can also be achieved.

Through the measures according to claim 19, a high breaking limit of the same is achieved even with extreme deflection of the recessed core component. In addition, relative displacements between the two core components in the longitudinal direction of the gliding device are excluded in an advantageous manner. By integrating several separate core elements into the gliding device, their mechanical properties or strength values can be specifically adapted to the requirements. For example, it is possible to assign a different characteristic to the inner core elements related to a pair of skis than to the outer core elements of the pair of skis consisting of left and right skis.

A highly effective decoupling of the binding parts from the actual gliding device is achieved by the embodiment according to claim 21. The natural flexibility of the glider is impaired as little as possible, even in its binding assembly area. In addition, such a gliding device achieves driving characteristics similar to chassis.

The embodiment according to claim 22 advantageously enables the integration of core elements with relatively large cross-sectional dimensions, as a result of which the desired characteristic of the core element to be integrated can be achieved without problems. Furthermore, optimal properties can be ensured by the core elements over comparatively wide areas.

Finally, an embodiment according to claim 23 is advantageous because this enables the most direct possible power transmission from a core component mounted on the lower flange and / or from a shell-shaped cover layer or from its own side cheeks to the steel edges and vice versa, which results in optimal control behavior.

The invention is explained in more detail below with reference to the exemplary embodiments shown in the drawings.

Show it:

Fig. 1 is a glider, in particular a ski, with locations for binding in

Top view and schematic representation;

FIG. 2 shows the gliding device according to FIG. 1 in a side view with the configuration of the binding receptacle indicated in a highly simplified manner;

3 shows the gliding device according to FIG. 1 in a cross-sectional illustration, sectioned along lines III-III in FIG. 1 in a greatly simplified, exemplary illustration; 4 shows a partial area of the gliding device for receiving a binding part in plan view according to arrow IN in FIG. 3;

5 shows another embodiment of a gliding device with a binding receptacle in a simplified, schematic cross-sectional illustration;

6 shows the binding receiving area for a binding part in a top view of the gliding device according to arrow VI in FIG. 5;

7 shows another embodiment of a gliding device with a binding receptacle in a greatly simplified cross-sectional illustration;

Fig. 8 shows the receiving area for a binding part of the glider in plan view

Arrow VIII in Fig. 7;

Fig. 9 shows a longitudinal section through a glider in the area of the receiving point for a core-mounted binding part in a simplified, schematic representation.

As an introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, and the disclosures contained in the entire description can be applied analogously to the same parts with the same reference numerals or the same component names. The location information selected in the description, e.g. above, below, laterally etc. refer to the figure described and illustrated immediately and are to be transferred to the new position in the event of a change of position. Furthermore, also

Individual features or combinations of features from the different exemplary embodiments shown and described represent independent, inventive or inventive solutions.

1 to 4, a construction possibility of a gliding device 1 according to the invention is illustrated by means of various representations. The board-like gliding device 1 according to the invention is in particular formed by a ski 2 for performing alpine skiing. Alternatively, the gliding device 1 can also be designed as a snowboard, since the primary differences lie only in the length to width ratio of the gliding devices 1. The gliding device 1 consists of several layers or layers which are at least partially non-positively connected to one another, the underside or a gliding surface 3 of the gliding device 1 being formed by a tread surface 4 which ensures good sliding properties and an upper side 5 of the gliding device 1 by a cover layer 6. Lower longitudinal side edges of the gliding device 1 are formed in the usual manner by steel edges 7, 8 and thereby limit the tread surface 4. The cover layer 6 covers at least the uppermost layer of the gliding device 1 constructed as a sandwich or composite element. As shown in FIG. 3 However, the cover layer 6 can also extend over the longitudinal side walls 9, 10 of the gliding device 1 or form side cheeks 11, 12 of the gliding device 1. In this case, a one-piece cover layer 6 extends like a shell over the uppermost layer and also forms the outer longitudinal side surfaces of the gliding device 1.

The sliding device 1 comprises at least one lower flange 13 closest to the tread surface 4 and or one upper flange 14 made of high-strength material closest to the cover layer 6. The lower flange 13 and the upper flange 14, which is usually also present, are formed by flat layers or by thin layers made of metallic materials and / or profiled transversely to the longitudinal direction thereof and / or of fiber-reinforced plastics or synthetic resins. Particularly when using plastic straps, these are formed by a glass fiber fabric impregnated with synthetic resin, usually epoxy resin, the final hardening of these straps taking place under pressure and temperature when the individual layers of the ski are pressed. Such belts are usually referred to as prepregs. The metallic materials of a lower and upper flange 13, 14 are usually formed by aluminum or by a high-strength and light aluminum or titanium alloy.

Referring to its cross section, the can be continuous over the entire length of the

Gliding device 1 extending, strip or band-like lower flange 13 also run close above the steel edges 7, 8 and are flush with the outer longitudinal side surfaces of the steel edges 7, 8 and thus contribute to better power transmission between a shell-shaped cover layer 6 and the steel edges 7, 8 , The side walls 11, 12 of the shell-shaped cover layer 6 are then supported directly on the upper side of the steel edges 7, 8 via the correspondingly broadly dimensioned lower flange 13.

The underside of the cover layer 6 usually carries a design layer which determines the optical appearance of the gliding device 1 and can therefore also be referred to as a cover or design layer. In particular, the strip-like or belt-like upper chord 14 lying below the cover layer 6 can also be profiled. In particular, the cross-sectional shape of the upper chord 14 can be at least approximately adapted to the profiling of the surface or top 5 of the gliding device 1. In the embodiment shown, the upper flange 14 has a substantially U-shaped cross section, the two legs of which only extend over a partial area of an overall height of the gliding device 1.

At least one core component 15 is arranged between the lower flange 13 and the upper flange 14. This core component is arranged in the middle or in the center of the gliding device 1, whereas the surrounding layers and layers, in particular the lower flange 13 and the

Upper chord 14, lie in the edge zones of the gliding device 1. The core component 15 also takes up the comparatively largest part of the cross-sectional area of the sliding device 1. Especially in the intended binding assembly area of the gliding device 1, the height dimension of the core component 15 is more than 50% of the cross-sectional height of the gliding device 1. The core component 15 therefore virtually holds the upper layers of the gliding device 1, in particular the top flange

14, at a distance from the layers below, in particular from the lower flange 13.

In the embodiment shown, the core component 15 is made of wood. In the exemplary embodiment shown, the core component 15 consists of a plurality of interconnected, in particular glued together, slats 16 made of suitable wood. The slats 16 of the wooden core component 15 are lined up in the transverse direction of the gliding device 1 with an upright orientation, a slat width 17 running vertically to the sliding surface 3 of the gliding device 1 and a slat thickness 18 parallel to the sliding surface 3 and measured transversely to the longitudinal direction of the gliding device 1. The slat width 17 is a multiple of the slat thickness 18.

At least one underside 19 of the core component 15 rests on an elastic layer 20 in the interior of the gliding device 1. The elastic layer 20 can be formed by an elastomeric plastic and / or by a foam plastic with corresponding spring-elastic properties. The elastomer layer or the elastic layer 20 can have rubber-like or foam-like properties and should be elastically flexible under the acting forces and automatically reset due to its inherent elasticity. The elastic layer 20 can be formed by vulcanization or by foaming on the underside 19 of the core component 15 or else can be applied to an underlying layer, in particular to the lower flange 13. Of course it is possible to integrate the elastic layer 20 as a separate layer in the manner of an intermediate layer in the glider or core structure.

By supporting the core component 15 on the elastic layer 20, it is at least slightly displaceable in relation to the surrounding layers and layers in the vertical direction to the sliding surface 3 or to the top 5 of the sliding device 1, provided that correspondingly high forces act on the latter. In the force-free idle state, the core component 15 then automatically shifts back into the starting or idle position shown in FIG. 3.

In particular, a binding part to be mounted on the gliding device 1, not shown for the sake of simplicity, for holding at least one end region of a user's shoe rests directly on this core component 15, which is elastically mounted in the body of the gliding device 1.

The corresponding binding part can be supported directly on a hard, unyielding upper side 23 of the core component 15 via pressure-resistant extensions 21 or alternatively via pressure-resistant spacer elements 22.

In the exemplary embodiment according to FIG. 3, the compression-resistant extensions 21 of the core component 15 are formed by separate spacer elements 22, which are located directly on the top 23 of the

Support the core component and are rigidly and unrelentingly connected to the latter. The extensions 21 or spacer elements 22 of the core component 15 placed in a conventional binding assembly area or in the center area of the gliding device 1 completely penetrate the top chord 14 and the overlying cover layer 6 at least for the most part and close approximately flush with the top 5 of the gliding device 1.

The extensions or spacer elements 22 represent rigid load transfer or pressure transmission elements between the elastically mounted core component 15 and a binding part to be mounted.

It is essential that the extensions 21 or spacer elements 22 of the core component 15 penetrate the overlying layers, in particular the top flange 14, and the cover layer 6 with sufficient clearance and find their hold only on the core component 15.

As can best be seen from FIG. 3, the pressure-resistant extensions 21 or spacer elements are duck 22 on the upper side 23 of the core component 15 is formed by its own, preferably metallic elements which are firmly connected to the core component 15, in particular screwed to the core component 15. With the part representing a spacer body 24, the extensions 21 or spacer elements 22, proceeding from the core area of the gliding device 1, project in the vertical direction to the gliding surface 3 to the outermost cover layer 6 or close them

Extensions 21 of the core component 15 at least flush with the cover layer 6. The spacer element 22 screwed into the core component 15 or otherwise connected to the core component 15 also serves as a receptacle for schematically indicated fastening screws 25 of a binding part and / or a. generally known binding plate serving to increase the footprint. Such a binding plate is to be arranged between the gliding device 1 and the underside of the binding part to be assembled. The extensions 21 or spacer elements 22 thus establish a direct, rigid coupling between the core component 15 and the corresponding binding part and / or the corresponding binding plate. The binding or the underlying binding plate is largely decoupled from the other layers and layers of the gliding device 1 and is mounted exclusively on the core component 15, which is virtually floating in the gliding device structure, and is connected to it. Thus, the binding parts of a preferably two-part safety ski binding are no longer clamped or jammed with the top 5 of the gliding device 1, but can be detached from the surface or the cover layer 6 via the extensions 21 or spacer elements 22 directly and at least predominantly or solely the core component 15 arranged centrally in the glider body.

The core component 15 responsible for the binding support or binding holder can represent a first component of a multi-part core element 26 of the gliding device. In particular, in addition to the first core component 15 holding the binding, a further core component 27 can be formed. This additional core component 27 accommodates the first core component 15 provided for the binding holder at least partially or the first core component 15 is at least partially delimited by the second core component 27. As can be seen in particular from FIG. 3, the further core component 27 can delimit the first core component 15 on its upper side 23 and on its longitudinal side surfaces 28, 29. The core components 15 and 27 forming the core element 26 are movably connected to one another, the maximum relative adjustment path between the two core components 15 and 27 being relatively small in comparison to its dimensions. Under no circumstances are the individual core components 15, 27 glued to one another in a rigid manner, screwed or positively connected to one another, but are between the core component 15 and the core component 27 a limited relative displacement allowed.

Optionally, the second or the outer core component 27 forms a type of linear guide 30 for the first or inner core component 15. The quasi-core-mounted binding part can therefore move via this linear guide 30 while deforming the elastic layer

20 are mainly adjusted in the vertical direction to the sliding surface 3 of the sliding device 1, provided that correspondingly high forces act on the elastic layer 20 via the core component 15. The absolutely limited and relatively restricted adjustment movement of a binding part in the vertical direction to the sliding surface 3 is inevitably coupled with the adjustment movement of the first core component 15.

This linear guide 30 can be constructed in that the second core component 27 extends in a hood-like manner over the inner core component 15 and thereby lies largely free of play on the longitudinal side surfaces 28, 29 of the wooden core component 15. The relative adjustability between the outer core component 27 and the inner core component 15 is determined exclusively by the resistance to deformation or the modulus of elasticity of the elastic layer 20.

The outer core component 27 is in the embodiment according to Fig. 3 by a substantially U-shaped in cross section, i.e. formed by a shaped profile 33 made from metallic materials and / or from plastics from a base plate with legs 31, 32 projecting at an angle therefrom. The longitudinal side edges of this shaped profile 33 can be at least partially non-positively connected to the top of the lower flange 13, as was indicated schematically by adhesive or welding points and thus represent a prefabricated core element 26 for a gliding device 1.

It is essential that the outer longitudinal side surfaces 29, 30 of the inner core component 15 and the associated inner surfaces of the outer core component 17 are not rigidly connected to one another or not glued to one another, but relative displacements between the core component 15 and the core component 27 against the mechanical one Resistance to deformation of the elastic layer 20 remains possible.

Merely for the sake of completeness, it should be mentioned that the extensions 21 or spacer elements 22 also completely penetrate the outer core component 27, in particular the shaped profile 33, so that the extensions 21 or spacer elements 22 directly open de inner core member 15 can be supported. With these breakthroughs for the unimpeded penetration of the extensions 21 and the spacers 22 of the outer core member 27, it is also avoided that direct tension between the inner and outer core members 15 and 27 can occur in the longitudinal direction of the glider 1 when the entire core member 26 through - or bent up.

The lower flange 13 and the outer core component 27 with the core component 15 accommodated between them and the elastic layer 20 on the underside 19 thereof can also form a prefabricated, independent core element 26, which can be integrated into a manufacturing process for the gliding device 1 without any problems. In particular, the prefabricated, multi-part core element 26 can be pressed under pressure and temperature with the other load-bearing layers and layers for a gliding device 1 in a simple manner.

For the sake of completeness, it should be mentioned that the individual components and layers of the gliding device 1 are made in one piece by means of appropriate adhesive or filler layers 34

Composite or sandwich element connected, in particular glued. With these adhesive or Filling layers 34 can also largely fill individual cavities between the various layers and components.

The core element 26, in particular the core component 15 and / or the core component 27, extends almost over the entire length of the gliding device 1 and therefore acts as an element for the relatively extensive distribution of the more or less punctually acting supporting or supporting forces over the Length of the gliding device 1. The core component 15, which is mounted in a quasi-floating manner in the innermost region, that is to say in the center area of the gliding device 1, with the receiving options for binding parts provided by the extensions 21 or spacing elements 22, favors the driving properties of the gliding device 1 to a surprisingly high, unpredictable extent. In particular, the gliding device 1 achieves the best, chassis-like driving properties through the elastically mounted core component 15 and, moreover, an optimal bending stiffness characteristic of the gliding device 1 is achieved, which is significantly less impaired in comparison to conventional structures by mounted binding parts and a shoe clamped in between. On the one hand, this is caused by the fact that the bond is no longer anchored to the load-bearing or outermost layers of the gliding device 1, which are responsible for the rigidity of the gliding device 1, but rather by the core support of these layers and layers in the outer Edge zone of the gliding device 1 has been decoupled as far as possible. The core component 15 namely exercises in comparison to the edge layers or to the top chord 14 the least influence on the bending stiffness of the gliding device 1, the neutral fiber of the gliding device 1 also running in the core element 26 or in the core component 27. The intrinsically dynamic properties of the gliding device 1 are therefore impaired as little as possible by the quasi-core-mounted binding.

In addition, a support surface 35 for the corresponding binding plate and / or for a corresponding binding part on the respective extensions 21 or spacer elements 22 can be formed at a distance 36 above the top 5 of the gliding device 1 in order to achieve a bending characteristic of the gliding device 1 which is even less influenced by the binding parts , This creates a free space between the underside of the corresponding binding part or the corresponding binding plate and the upper side 5 of the gliding device 1. This free space formed by the distance 36 ensures, on the one hand, a sufficient adjustment or damping path in the vertical direction to the sliding surface 3. In addition, the free space created by the distance 36 between the binding part and the sliding device 1 compensates for deformation movements of the sliding device 1 that are as unimpeded as possible The distance 36 can be approximately 0.5 mm to 5 mm.

As can best be seen from FIG. 4, four or five extensions 21 or spacer elements 22 are provided for each binding part for anchoring the fastening screws (not shown in FIG. 4) for a binding plate and / or a binding part. It can also be clearly seen from this that the extensions 21 or spacer elements 22 represent column-like elements of relatively small cross-sectional area, which are seated directly on the core component 15. In the exemplary embodiment shown, the extensions 21 or spacer elements 22 have circular support surfaces 35 for a binding plate or for a corresponding binding part. In the central area of the support surface 35 there is at least one receiving bore 37 for anchoring the

Fastening screws 25 are provided.

The extensions 21 or spacer elements 22 protrude from the core component 15 via respectively assigned openings 38 in the top flange 14, in the cover layer 6 and possibly also in the second core component 27 at least up to the top 5 of the gliding device 1.

A length 39, measured in the longitudinal direction of the gliding device 1, of the outer openings 38 closest to the edge zone of the binding assembly area is greater than an outer width 40, measured in the same direction, of the respective extension 21 or punching element 22. This provides sufficient clearance between the extension 21 respectively. the spacer 22 and the layers penetrated by it.

An outer width 41 of the extensions 21 or spacer elements 22 measured transversely to the longitudinal direction of the gliding device 1 corresponds approximately to the width of the openings 48, so that the extensions 21 or spacing elements 22 are fixed immovably in the transverse direction of the gliding device 1.

The clearance formed in front of and behind the extensions 21 or spacer elements 22 between the front and rear delimiting surface of the extension 21 or spacer element 22 and the wall surfaces of the respective opening 38 distanced therefrom is preferably at least partially filled with a relatively soft elastomer 42.

The closest to the binding assembly center or the inner extensions 21 or spacer elements 22 can emerge from the core zone of the gliding device 1 via openings 38, which are largely closely adjacent to the outer surfaces of the extensions 21 or spacer elements 22, after hardly any compensating movements are required in the region of the binding assembly center for ski deflections ,

If necessary, it is also possible to mount corresponding binding plates on the extensions 21 or on the spacer elements 22 at the factory. The binding parts can then be held or fastened on these binding plates at a position corresponding to the desired shoe size.

As can be seen in particular from FIG. 2, at least the multi-part core element 26 or else also the core component 15, which is provided for supporting the binding parts, extends continuously between a front and a distal rear support area 43, 44 of the unloaded gliding device 1 on a flat surface 45. In particular, the core element 26 or the core component 15 for the binding reception extends from the binding mounting area 46 of the gliding device 1 to the area of contact zones 47, 48 of the sliding surface 3 of the unloaded gliding device 1 with a flat surface 45 Referring to its side view, the gliding device 1 is arched upward over the largest longitudinal region and, in the unloaded state, has a certain preload height 49 between the sliding surface 3 and a flat surface 45. The core component 15 or core element 26 extends in a bridge-like manner between the two contact zones 47, 48 in the two end regions of the sliding device 1 with a lower reason 45

If two nested core components 15, 27 are formed, the outer core component 27 preferably also extends continuously into the contact zones 47, 48 in the end regions of an unloaded gliding device 1

5 and 6, another embodiment of the sliding device 1 for a core bearing of binding parts is illustrated. For parts already described above, the same reference numerals are used and the previous descriptions are meaningfully applicable to the same parts with the same reference numerals

The main difference here is that the projections 21 projecting from the core component 15 to at least flush to the top 5 of the sliding device 1 are integrally formed on the core component 15. The projections 21 can be formed by strip-like or column-like, from the top 23 of the integrated The protruding elements 15 projecting elements can be formed. The extensions 21, which form a one-piece unit with the core component 15, for direct binding support can be created by milling operations on a workpiece provided for a core component 15. However, it is also possible for the core component 15 to be formed by a casting or To produce injection molding and thereby to form the projections 21 in one piece

As can best be seen from FIG. 5, the core component 15 can in turn be formed from a plurality of wooden slats 16 which are connected to one another. Individual slats 16 have a greater slat width 17 than the other slats of the core component 15 and thus form the continuations 21 of the core component 15 from in particular, it is thereby possible, at least in the binding assembly area 46 provided, to have strip-shaped extensions 21 on the

To form the upper side 23 of the core component 15 In these strip-like extensions 21, schematically indicated fastening screws 25 for a binding plate 50 or for a binding part can then be screwed and anchored in the core component 15

In order to obtain platform-like or column-like extensions 21, which can be seen in particular in FIG. 6, it is possible in a simple manner to remove, in particular chamfer, the central areas of the strip-like elevations, so that only individual, small-area elevations in the area of the provided anchoring points for the fastening screws 25 remain, which lead directly into the core zone of the gliding device 1 Another difference is that the core element 15 is delimited by the elastic layer 20 over almost the entire circumferential area, in particular on all sides. Only the support surfaces 35 for the binding parts on the extensions 21 of the core component 15 are not covered by the elastic layer 20. In particular, the elastic layer 20 also extends through the openings 38 in the upper chord 14 and in the cover layer 6 and thereby delimits the outer or jacket surfaces of the columnar extensions 21 over their entire circumference.

In this embodiment, the core component 15 is floating in the center region of the gliding device 1 in all spatial directions. All of the outer surfaces of the core component 15 are thus enclosed or covered by the elastic layer 20. The transmission of shear, torsion or deformation forces between the inner core component 15 and the outer core component 27 thus takes place exclusively via the elastic layer 20.

The outer core component 27 in turn delimits the elastic layer 20 like a hood. The core component 27 also has the openings 38 for the passage of the extensions 21 of the inner core component 15.

The outer, in cross-section essentially U-shaped core component 27 or shaped profile 33 can in turn be connected, in particular welded or glued, to the lower flange 13 via the longitudinal side edges of the two legs 31, 32 facing away from the base plate. The central portion of the flat lower flange 13 and the base plate of the U-shaped profile 33, which is spaced apart by the legs 31, 32, form a receiving chamber for the core component 15 with the extensions 21, which is mounted in a manner that is floating in the elastic layer 20, which is also accommodated is.

In the exemplary embodiment shown, the gliding device 1 has an essentially trapezoidal cross-section and the cross-sectional shape of the upper flange 14 is adapted to this trapezoidal cross-sectional shape. In addition, the upper chord 14 is supported with its longitudinal side edges in the longitudinal side regions of the lower chord 13 near the steel edges 7, 8.

As can best be seen from FIG. 6, the elastomeric layer 20 emerges from the core area of the gliding device 1 and is at least flush with the upper side 5 of the gliding device 1. 6 that the elastic layer 20 delimits all the extensions 21, namely also the inner extensions 21 in the binding assembly area 46, emerging from the inside of the gliding device 1. This is achieved in that the opening widths of the openings 38 are larger than the respective width and length dimensions of the projections 21 passing through.

7 and 8 illustrate a further advantageous embodiment for mounting or holding a binding part, for example a ski binding or possibly a snowboard binding, on a corresponding gliding device 1. The same reference numerals have been used for parts already described above and are the same

Descriptions can be applied analogously to the same parts with the same reference numerals.

In contrast to the aforementioned designs, the board-like gliding device 1 has a profiling 51 or shape on its upper side 5. In particular, on the upper side 5 of the gliding device 1 at least two bead-like elevations 52, 53 running in the longitudinal direction of the gliding device 1 are formed with an intermediate recess 54. In the longitudinal direction of the gliding device 1 therefore run at least two bead-shaped strands which, with reference to its cross-section or with respect to the cross-section of the gliding device 1, result in a wavy upper edge or upper side 5 of the gliding device 1.

This profiling 51 of the upper side of the sliding device is provided at least in the central region of the sliding device 1. The elevations 52, 53 can extend to near the end regions or to the bearing regions 43, 44 of the unloaded gliding device 1 shown in FIGS. 1 and 2 on a flat surface 45. Starting from the central area of the sliding device 1 in the direction of its end areas, the elevations 52, 53 flatten continuously and gradually merge into a flat top 5 in the blade and end area of the sliding device 1.

In the exemplary embodiment shown, the profile 51 of the sliding device 1 also extends within the binding assembly area 46. Of course, it is also possible to use the

To form the binding mounting area 46 as a largely flat receiving zone for a mounting rail 55 or for a binding part 56. The profiling 51 of the gliding device 1 then extends from both ends of a flat binding assembly area 46 into the respective end areas of the gliding device 1. In this case, the binding mounting area 46 thus provides a plateau-like, flat receiving zone for a binding plate 50 and / or for mounting rails for holding binding parts 56.

Instead of the bumps 52, 53 constructed in the form of a cross-section, it is of course also possible to provide any other profiles for the upper side 5 of the gliding device 1 and to use the advantageous, objective binding holder or binding receptacle.

As can be seen above all from FIG. 7, the gliding device 1 can also have significantly more than two layers or layers above the at least one core element 26. In the illustrated embodiment, at least two separate, relatively hard layers of the upper chord 14 are arranged below the cover layer 6. A comparatively soft, elastomeric intermediate layer 57 is then arranged between these two relatively hard layers belonging to the upper chord 14. The upper or lower side of this elastic intermediate layer 57 is non-positively connected to one of the two comparatively hard and high-strength layers of the multilayer upper chord 14, for example by an adhesive or vulcanization process. As a result, all shear, pressure, tensile and torsional forces are transmitted from the upper position of the upper chord 14 to the lower position of the upper chord 14 and vice versa via this elastic intermediate layer 57. The hard layers of the upper chord 14 can also consist of different materials. In particular, the upper layer of the upper belt 14 can be formed from a metallic material, whereas the lower layer of the upper belt 14 can predominantly consist of plastic, for example of resin-impregnated fabrics.

In this embodiment of the gliding device 1, there is also a significant difference in the fact that inside the gliding device 1 there are two separate ones running in the longitudinal direction of the gliding device 1

Core elements 26 are integrated.

These two core elements 26 run essentially parallel or congruent to the respective bead-like elevations 52, 53 of the upper side of the gliding device. The integrated core elements 26 are preferably largely centered on an imaginary, in the longitudinal direction of the

Gliding device 1 extending apex line 58 of the respective elevation 52, 53 is arranged. In particular, a longitudinal central axis 59 of a core element 26 can be aligned substantially congruent with the respective apex line 58 of the corresponding elevation 52, 53 when the planing device 1 is viewed from above, as can be seen above all from FIG. 8. After by the elevations 52, 53 of the gliding device 1 relatively generous space are created, the respective core elements 26 can have relatively large cross-sectional dimensions or cross-sectional heights and still be effortlessly integrated into the glider structure.

The apex line 58 connects the apexes of the respective arcuate elevations 52, 53 in individual cross-sectional areas of the glider 1 spaced apart in the longitudinal direction of the gliding device 1 and can therefore also be defined as a ridge line or as the uppermost boundary line between the sloping surface areas of an elevation 52 or 53.

Each multi-part core element 26 in turn comprises an outer molded profile 33 which at least partially surrounds or encloses the inner core component 15. In this embodiment, the inner core component 15 is also formed by a shaped profile 60. The inner molded profile 60 and the outer molded profile 33 have the same or at least similar cross-sectional shapes, the cross-sectional dimensions of the internal molded profile 60 naturally having to be made smaller.

In a preferred embodiment, the nested shape profiles 33 and 60 have largely circular cross-sectional shapes. In particular, these shaped profiles 33 and 60 assembled to form a multi-part core element 26 can be formed by tubes. To better adapt these shaped profiles 33, 60 to the usual profile of the cross-sectional height of the sliding device 1, the shaped profiles 33, 60 can be increasingly flattened, starting from the central area thereof in the direction of its end areas or in the direction of the end areas of the sliding device 1. The shaped profiles 33, 60 can be flattened in its end regions or in the end regions of the gliding device 1 to such an extent that their ends are flattened and thus a core element 26 closed in its end regions is created. Of course, it is also possible to provide separate sealing caps or sealing plugs in the end regions of the shaped profiles 33, 60 or in the end regions of the multi-part core element 26 in order to create a hollow core element 26 which is closed off from the outside.

Instead of using hollow, tubular core components 15 and 27 for a multi-part core element 26, it is of course also possible to use shaped profiles 33 and 60 of different cross-section. For example, the shaped profiles 33, 60 can also have a square, rectangular, triangular, trapezoidal or elliptical cross section, or else cross-sectional shapes composed of it. The upper jacket area of the assembled core element 26 should preferably be at least approximately adapted to the surface contour or to the profile 51 of the final gliding device 1. Due to the at least partial alignment of the upper lateral surface of the outer shaped profile 33 or of the core element 26 with the profile 51 of the upper side 5 of the gliding device

1, the relatively restricted space conditions, which are determined by the usual glider dimensions, can be optimally used. In addition, favorable static or mechanical properties of the gliding device 1 are achieved.

Instead of a hollow, inner shaped profile 60, it is of course also possible to form the inner shaped profile 60 by a solid body, in particular by a bending rod or by a corresponding rod, such a part being inserted into the outer shaped profile 33 and thereby from the outer shaped profile 60 is largely enclosed. The outer dimensions, in particular the cross-sectional width and the cross-sectional height of the inner shaped profile 60 are dimensioned such that it can be inserted into the outer shaped profile 33 with play or that the shaped profile 60 can be nested with the shaped profile 33.

This clearance between an outer jacket 61 of the inner molded profile 60 and an inner surface 62 of the outer molded profile 33 is in turn at least partially filled by the elastic layer 20. The elastic layer 20 is thus arranged between the outer jacket 61 of the inner core component 15 and the inner surface 62 of the outer core component 27, which forms a receptacle or boundary for the inner core component 15. This elastic layer 20 holds the inner core component 15 or the inner molded profile 60 at a distance from the inner surface 62 of the outer core component 27 or at a distance from the corresponding molded profile 33 and results in this unit consisting of the first core component 15, the second core component 27 and the intermediate elastic one Layer 20 is a multi-part, one-piece core element 26. This multi-part core element 26 represents an ideal static characteristic values and a bending rod that has dynamic bending properties and is easy to integrate into a gliding device 1.

The shaped profile 33 or 60 is preferably formed from a metallic material. Form profiles 33, 60 made of aluminum or of a high-strength and light aluminum or titanium alloy are particularly suitable. Of course, it is also possible to use molded profiles 33 or 60 and / or woven from individual fibers or threads if necessary, integrate elements reinforced with binder into the gliding device 1.

In the embodiment shown, the extensions 21 for receiving fastening screws 25 for a binding plate 50 and / or for a mounting rail 55 and / or for a corresponding binding part 56 are formed directly on the inner core component 50 or directly on the corresponding inner molded profile 60. These extensions 21 on the inner, through the elastic layer 20 vibration-damping molded profiles 60 penetrate the outer profile 33 and the layers of the upper flange 14 through openings 38 in these elements. It can thus be stated that the inner core component 15 or the inner shaped profile 60 in a designated receiving area for fastening screws 25 for

Binding parts 56 penetrates the outer shaped profile 33 and the supporting upper chord 14.

Instead of the projections 21 which are integrally formed on the inner molded profile 60, it is of course also possible to provide a separate, sleeve-like spacer element 22 on the top of the inner molded profile 60, which is loosely penetrated by a corresponding fastening screw 25. In this case, the tip of the fastening screw 25 is exclusively anchored in the inner core component 15 and presses the spacer sleeve against the upper side of the elastically mounted core component 15 via the preload built up between the binding part and the core element 15. In such an embodiment, the shaped profile 60 is to be made relatively thick-walled or to form as a rolling body in order to achieve secure anchoring of the fastening screws 25 in the core element 15. A comparatively high pull-out strength for the fastening screws 25 is achieved, however, if the extensions 21 are molded onto the inner shaped profile 60 and fastening screws 25 are already anchored in the material of the extensions. In this case, the receiving bores 37 for the fastening screws 25 are formed by blind holes.

In a departure from the illustrated embodiment, it is of course also possible to form the receiving bores 37 through through bores which lead directly into the cavity of the inner shaped profile 60.

In the exemplary embodiment shown, the two elongate core elements 26 distance the

Layers of the lower flange 13 from the layers of the upper flange 14. In particular, the lower flange 13 lies directly on the underside of the outer shaped profile 33 and likewise an underside of the upper flange 14 lies directly on the facing upper side of the outer shaped profile 33. The remaining free space between the core elements 26 and the lower or upper flange 13 is filled with an adhesive or filler layer 34. This adhesive or filler layer 34 can also be formed by a foam plastic, which can then also be referred to as a foam core. The core element 26 can be non-positively connected, in particular glued or welded, to the lower or upper flange 13, 14 at least within partial regions of the contact points.

The adhesive or filler layer 34 in the core area of the gliding device is preferably formed by a relatively light foam plastic, which can also have permanently elastic properties.

As can be seen in particular from FIG. 7, the longitudinal side walls 9, 10 of the gliding device

1 u.a. formed by independent side cheek elements 63, 64 varying in thickness or height, which represent the transition between the lower layers and the upper layers of the gliding device 1 or form the side cheeks 11, 12 of the gliding device 1.

FIG. 9 illustrates a further embodiment relating to the mounting or mounting of a binding part on a gliding device 1. The same reference numerals have been used for parts already described above, and the previous descriptions can be applied analogously to the same parts with the same reference numerals.

In this case, the core component 15 for the binding reception extends only within the customary binding assembly area 46 and end faces 65, 66 of this core component 15 lie largely free of play and associated limiting surfaces 67, 68 of a recess 69 in the core component 27 that are spaced apart in the longitudinal direction of the gliding device 1.

This recess 69 in the upper side 23 of the core component 27 is dimensioned such that the core component 15 for the binding holder can be at least partially received therein. In the embodiment shown, the depth of the recess 69 is approximately half of the core component 27. Between the underside 19 of the core component 15 and the bottom surface of the recess 69, the elastic layer 20 is again formed. It is thereby achieved that the core component 15 for the binding in the vertical direction to the top

5 of the gliding device 1 and the deformation of the elastic layer 20 is adjustably mounted.

The end faces 65, 66 and boundary surfaces 67, 68, which lie against one another largely without play, ensure that the core component 15 is fixed immovably in the longitudinal direction of the gliding device or in the longitudinal direction. The core component 15 in turn carries extensions 21 and / or corresponding spacer elements 22, which protrude from the top 23 of the core component and extend at least to the top 5 of the gliding device 1. For this purpose, corresponding openings 38 or elongated holes are in turn formed in the layers of the sliding device 1 arranged above the core component.

In the embodiment shown, only the extensions 21 lying on the outside in the binding assembly area 46 are shown and the middle extensions for anchoring middle fastening screws 25 have not been shown. It is also clearly evident from FIG. 9 that those lying in the edge zones of the binding assembly area 46

Openings 38 are formed by elongated holes pointing in the longitudinal direction of the gliding device 1.

Furthermore, it is clearly evident from FIG. 9 that the multi-part core element 26 is surrounded by an elastic sheath 70, which enables the multi-part core element 26 to be embedded in the glider structure in an elastically flexible manner. This elastic covering can be formed by a covering 70 made of an elastomeric rubber active substance or of foam plastic.

This sheath 70 also enables damping of movements which cause the core component 15 to be lifted off the core component 17.

The illustrated, one-piece design of the extensions 21 on the core component 15 integrated in the sliding device body enables highly secure anchoring of fastening screws 25 for binding parts 56 after the fastening screws can be anchored over a wide range over the height of the extensions 21 and the height of the core component 15. In particular, this configuration can prevent the fastening screws from penetrating into the outer core component 27 and the intended damping function or the intended longitudinal compensation between the core components 15 and 27 being lost.

For the sake of order, it should finally be pointed out that, for a better understanding of the construction of the gliding device 1, this or its components have been partially shown to scale and / or enlarged and / or reduced. Above all, the individual in FIGS. 1, 2, 3, 4; 5, 6; 7, 8; 9 shown form the subject of independent, inventive solutions. The relevant tasks and solutions according to the invention can be found in the detailed descriptions of these figures.

B c z u g s z e i c h e n a u f S t e l l u n g

Glider 41 Outer width ski 42 Elastomer sliding surface 43 Contact area tread surface 44 Contact area top 45 Base surface layer 46 Binding mounting area steel edge 47 Contact zone steel edge 48 Contact zone longitudinal side wall 49 Preload height longitudinal side wall 50 Binding plate side wall 5 1 Profiling side wall 52 Elevation lower flange 53 Elevation top flange 54 Deepening core component 56 binding lamella 57 Interlayer lamella thickness 58 crown line underside (of core component 15) 59 longitudinal central axis layer (elastic) 60 molded profile extension 61 outer jacket spacer element 62 inner surface top side (of core component 15) 63 side wall element spacer body 64 side wall element fastening screw 65 end face core element (multi-part) 66 end face core component 67 boundary surface longitudinal side surface ( of the core component 15) 68 boundary surface longitudinal side surface (of the core component 15) 69 recess linear guide 70 Wrapping thigh thigh shaped profile adhesive or filler layer support surface distance receiving hole opening length outer width

Claims

I tent claims

1. Board-like gliding device (1), in particular ski (2) or snowboard, comprising a plurality of layers arranged between a tread surface (4) and a cover layer (6), comprising an upper flange (14) closest to the cover layer (6) and one Treads were (4) the next lower flange (13) made of high-strength material, these layers forming a composite element with a core component (15) arranged between the layers and the upper flange (14) and the cover layer (6) penetrating and at least flush with the Top extensions of the gliding device (1) or spacers (22) for receiving fastening screws (25) for binding parts are integrated in the composite element, characterized in that at least one underside (19) of the core component (15) is attached to a bottom the occurring forces resiliently resilient and restoring layer (20) or at least over its underside (19) on this elastic layer (20) rt and is supported and this on the elastic layer (20) at least in the vertical direction to a sliding surface (3) of the gliding device (1) resiliently mounted core component (15) thereon

Top (23) forms the pressure-resistant extensions (21) or separate, pressure-resistant spacer elements (22) are supported directly on its top (23) and fastening screws (25) for binding parts (56) or for their mounting rails (55) or binding plate (s) (50) are only anchored in the extension (21) of the core component (15) or additionally in the core component (15) or, when the spacer element (22) is interposed, the fastening screws (25) are held in the core component (15) only in a load-bearing manner.

2. Board-like gliding device according spoke 1, characterized in that the extensions (21) directly from the core component (15) or form a one-piece unit with the core component (15).

3. Board-like glider according spoke 1 or 2, characterized in that the core component (15) under deformation of the elastic layer (20) in the vertical direction to the top (5) of the glider (1) is adjustable.

4. Board-like gliding device according to one or more of the preceding claims, characterized in that the core component (15) of the elastic layer (20) is enclosed on all sides.

5. Board-like gliding device according to one or more of the preceding claims. che, characterized in that the core component (15) is formed by a first component of a multi-part core element (26) and is at least partially received or delimited by a second core component (27) (Fig. 3, Fig. 7, Fig. 9)

6 board-like gliding device according to claim 5, characterized in that between the first core component (15) and the at least a partial receptacle or boundary for this core component (15) representing the second core component (27) the elastic layer (20) is arranged

7 board-like gliding device according to one or more of the preceding claims, characterized in that the elastically mounted core component (15) is formed by a shaped profile (60) which is at least partially enclosed by an outer, further shaped profile (33), between the the two shaped profiles (33, 60) the elastic layer (20) is arranged

8 board-like gliding device according to claim 7, characterized in that the outer and or the inner shaped profile (33, 60) are formed by tubular elements made of metallic materials and / or of plastics or fiber materials

9 board-like gliding device according to one or more of the preceding claims, characterized in that the first core component (15) and / or the entire core element (26) in a relatively elastic foam core with a density of 200 kg / m ³ to 400 kg / m ³ is embedded

10 board-like gliding device according to one or more of the preceding claims, characterized in that the first core component (15) with its long side faces (28, 29) lies largely free of play against the second core component (27) which at least partially surrounds it (Fig. 3)

1 1 board-like gliding device according to one or more of the preceding claims, characterized in that between the inner core component (15) and the outer core component (27) which at least partially surrounds it, a linear guide running vertically to the upper side (5) of the gliding device (1) 30) is formed

12 Board-like gliding device according to one or more of the preceding claims. che, characterized in that a support surface (35) of the extensions (21) or spacer elements (22) for binding parts is arranged at a distance (36) above the top (5) of the cover layer (6).

13. Board-like gliding device according to one or more of the preceding claims, characterized in that the extensions (21) of the core component (15) or the spacer elements (22) on the core component (15), the top flange (14) and the cover layer (6) of the Push the glider (1) through with clearance.

14. Board-like gliding device according to one or more of the preceding claims, characterized in that a length (39) of the openings (38) in the longitudinal direction of the gliding device (1) in the upper flange (14) and in the cover layer (6) is larger than an outer width (40) of the protruding extension (21) or spacer element (22) measured in the longitudinal direction of the gliding device (1).

15. Board-like gliding device according to one or more of the preceding claims, characterized in that a clearance between an extension (21) or spacer element (22) and the wall surfaces of the associated opening (38) in the upper flange (14) and in the cover layer (6) is filled with a soft elastomer (42).

16. Board-like gliding device according to one or more of the preceding claims, characterized in that the core component (15) is formed by a composite body made of a plurality of lamellae (16) glued together from wood.

17. Board-like glider according spoke 16, characterized in that individual

Slats (16) have a greater height or slat width (17) and these larger slats (16) form the extensions (21) of the core component (15) which penetrate at least the outer core component (27) and the top flange (14).

18. Board-like gliding device according to spoke 16 or 17, characterized in that those slats (16) with greater height in the longitudinal direction of the gliding device (1) at least in an intended binding mounting area (46) of the gliding device (1) at least to the underside of the cover layer ( 6) extend.

19. Board-like gliding device according to one or more of the preceding claims. che, characterized in that end faces (65, 66) of the core component (15) bear largely without play on associated boundary surfaces (67, 68) formed by a recess (69) in the second core component (27). (Fig. 9)

20. Board-like gliding device according to one or more of the preceding claims, characterized in that two essentially parallel core elements (26) in the gliding device (1) are integrated next to one another.

21 board-like glider according spoke 20, characterized in that each of the core elements (26) comprises two nested tubular shape profiles (33, 60) with an intermediate elastic layer (20) and the extensions (21) or spacers (22) for receiving or retaining ranks of binding parts (56) are fixedly connected exclusively to the inner shaped profile (60) and the layers above the shaped profile (60) are penetrated by the extensions (21) or spacer elements (22) in a relatively adjustable manner.

22. Board-like gliding device according to one or more of the preceding claims, characterized in that an upper side (5) of the gliding device (1) has elevations (52, 53) curved in cross section and at least partial areas of the cross sections of the two independent core elements (26 ) are at least approximately adapted to the surface profile of the gliding device (1).

23. Board-like gliding device according to one or more of the preceding claims, characterized in that the strip or band-like lower flange (13) bridges the two spaced-apart steel edges (7, 8) on their upper side and largely flush with the outer longitudinal side surfaces of the Steel edges (7, 8) completes.