DE4033780A1 - Sandwich structure particularly suitable for skis - has facing layers bonded by deformable intermediate layer to core formed of profiled bars and deformable layers - Google Patents

Abstract

A sandwich structure, particularly for skis (1) has several facing layers (23) and a core (5) comprising strip or bar shaped materials (17), typically wood. The parallel core strips (17) enclose hollow spaces which are filled with a tough elastically deformable foam, e.g. PU foam which after deformation can retain its shape. An intermediate layer (22) bonds the facing layers (23) to the core (5) and is also elastically deformable. USE/ADVANTAGE - The construction permits 3-D deformation of a ski facing layer and/or core material without destroying the intermediate layer.

Description

The invention describes a sandwich component, especially for skis, with several cover and / or core layers forming from web or rod Shaped materials existing layers that have intermediate layers with are connected.

Sandwich components are already known, in particular for skis - according to DE-OS 34 06 056 - in which the ski core from horizontal and / or vertical  glued wood layers or lamellas and / or organic foams stands. The ski core is flexibly connected to one another in at least two divided the longitudinal halves, the resilient connection between the core longitudinal halves essentially only in the direction approximately parallel to Ski or ski top surface or across the side cheeks of the ski body is effective. The flexible connection is formed by cardboard honeycombs. The disadvantage here is that the cardboard honeycomb structure in perpendicular to the sides surface has insufficient strength because when compressing the wooden layers or lamellas, the webs of the cardboard honeycombs and thus the strength properties in Direction of deformation of the vertical direction can be destroyed.

The present invention has for its object a sandwich component to create the above type, which in particular also space deformation of the web or core layers forming the top and / or core layers rod-shaped materials without destroying the intermediate layers possible.

This object of the invention is achieved in that an intermediate layer as a shaping layer in particular elastically deformable and / or deformed is trained bar. The advantage of this solution is that elastic deformation or the reshaping of the shaping layer force-transmitting connection between the individual belts or profiles the cover and / or core layers can be maintained and thereby in advantageously the strength and thus the suspension and Damping properties of such a sandwich component improved can be.

It is also advantageous if the core consists of several in its Bands and / or profiles running parallel to one another in the longitudinal direction exists, which over the shaping layers in perpendicular to the longitudinal direction extending directions are connected, creating a profiled cross Cut of the sandwich component is accessible with which the strength and Suspension properties of a sandwich component can be significantly improved can. Nevertheless, it is possible to level the sandwich component with one  to produce flat, rectangular cross-section, so that only the deformation takes place immediately before it is installed in a ski can.

Another development provides that the shaping layer is spatially deformable and can be determined in the deformed position, whereby using a shaping layer, a relative displacement of the individual bands or profiles in different spatial directions can happen to each other.

It is also possible, however, for the Bands or profiles the shaping layer in the same cross-section range has a different density. It is advantageous that for example in the areas tapered due to the deformation the compression of the molding layer and the higher density a higher Deformation resistance is achieved.

According to another embodiment variant, it is provided that the shape layer over the length of the strips or profiles density. By producing layers of molding results with a different density over the length of the strips or profiles achieved that after the deformation process, the shaping layer in has approximately the same density and thus strength.

However, it is also possible for the shaping layer to have a space Lich supporting structure, in particular a cell structure. The cell structure tur enables the individual belts to be moved in a simple manner and profiles relative to each other and is due to the spatial subject plant that is built up by such a cell structure in which Able to transmit considerable forces even when deformed. Soon the airspace is ge in the area of such a sandwich component ring held so that especially when used in the field of skis due to the strongly changing temperatures, a formation of condensation water with the subsequent negative consequences can be eliminated.  

Another training provides that the cell structure of the Shaping layer in the case of strips or pro which are displaced relative to one another filen is compressed and / or deformed and in particular by a band or profile is fixed in this position, whereby the cell structure during the shape is not destroyed and an unimpeded power transmission is possible, the deformation forces to be applied for the deformation can be kept relatively low because the fixation of the individual banks the or profiles in the deformable position by an additional band or Profile is done. The advantage here is that these bands or profiles for Fixing the different relative position by deforming the Forming layers of strips or profiles which are displaced relative to one another can also be introduced in a flexible state, so that they are can adapt to the deformed surface of the Sanwich component. After that they remain in their hardened state in this form, whereby the Position of the tapes or profiles of the deformed sandwich component in their desired position can be fixed.

Another development provides that the shaping layer is formable, in particular thermally cracked, thereby without additional aids, but while maintaining the cell structure, a permanent displacement of the bands or pro which can be deformed relative to one another file is accessible, so that the deformation of such sandwich components before further processing or processing and without additional input bring support elements, such as bands or profiles to fix them Location, can be done.

But it is also possible that the strips or profiles on the thermal reshaped shaping layer in different relative positions are held to each other, whereby the plastic that occurs when heated Properties of different materials can be used for this can to a relative displacement of the strips or profiles to each other enable and the relative position achieved after cooling without too additional measures can be obtained.  

Another development provides that the tapes or Pro file with deformed shaping layer by a support element in below different relative positions are held or fixed to each other. By the assignment of your own support elements to the deformed bands or Profiles can be subjected to the load acting on the forming layers are also reduced.

But it is also possible that the strips or profiles form cavities and the shaping layer by foaming the cavities, for. B. with a tough elastic PU foam, is formed, causing the straps and / or profiles z. B. in a shape in one of the profiling of the ski corresponding position can be positioned and by foaming the trained cavities between the bands and / or profiles by a Material, especially PU foam with selected strength and / or Damping properties, can be filled.

According to a further embodiment it is provided that between the banks and / or profiles and the shaping layer of melting foils, e.g. B. Polyethylene films are arranged, which are exposed to heat and / or Print an adhesive connection and fix the position after curing Form bands and / or profiles and the shaping layer, whereby the Bands and / or profiles and the shaping layer with the in between orderly adhesive films without the application of z. B. liquid and / or paste-like adhesives in a form corresponding to the structure of the sandwich component, can be layered and by using pressure and / or exposure to temperature a permanent connection of the elements of the Sandwich component is reached.

It is also advantageous if the shaping layers with these connecting bands or profiles a regular cross-section, esp special rectangular or square cross-section, where through the manufacture of such sandwich components and their storage processing is considerably simplified.  

But it is also possible that the components with the shape layers connected strips or profiles form a prismatic body form. This training enables a higher strength of the sandwich component.

According to a preferred further training it is provided that a core of a ski from several, arranged side by side in the longitudinal direction of the ski and there are parallel profiles that are parallel shaping layers extending to these, in particular from Plastic foams are connected together, causing a deformation in different spatial directions and an opposite displacement, both approximately perpendicular to the side edges as well as perpendicular to the top and thus an adaptation to the different desired strength values of such a sandwich component is achievable.

Further training is also possible in which the individual bands or profiles of the core different distances transversely to their longitudinal direction tion, in particular perpendicular to the connecting surfaces between the mold layer and the tapes or profiles, and the shape layer in areas with a smaller distance between the Bands and profiles have a higher density. The compacted material of the shaping layers puts a higher resistance to the deformation contrary to, for example, one in its expansion by collapsing reduced cardboard honeycomb, in which the material density of the cardboard as such is not changed.

Another development provides that the individual bands or profiles of the core in one of the connecting surfaces between the mold layers and the band or profile receiving plane against are offset from each other, creating a multiple unwound Profile cross section can be achieved.

But it is also advantageous that when offset in the spatial direction to each other ter arrangement of the bands or profiles a density of the shaping layer is different from the density of the shaping layer  planar arrangement of the strips or profiles relative to each other. There by that the density of the shaping layer only when deforming process is changed, the deformation resistance and the open force to keep the shape low, while at the end of Ver molding process simultaneously with the shaping an increase in strength the shaping layer is achieved.

According to another embodiment variant, it is provided that the individual Bands or profiles due to different deformation of the shape layer are kept in a skewed position where by roughly adapting the sandwich component to the outer shape of the this receiving final product is possible.

It is also advantageous to have a design based on the core using several parallel, directly connected rods, for example wooden rods, which is formed by symmetrical in particular shaping layers arranged with respect to a longitudinal central axis of the core other profiles or bands are connected, which also the Her provision of sandwich components with a high number of profiles is lightened.

But it is also advantageous that individual profiles or strips in several parts are formed and these tapes or profiles and / or their parts over in an angular position, in particular perpendicular to each other orderly shaping layers are connected to each other, as a result maintain spatial deformation of the individual layers to each other and at the same time, through this arrangement of the shaping layers, a supporting knot is created in the sandwich component.

Finally, it is advantageous that at least individual strips or profiles surrounded on all sides by a shaping layer and over this with the be neighboring tapes or profiles is connected. This allows the relative Position of a band or profile to the other to change the elasti Zitäts- or damping properties can be changed without the total cross section of the sandwich component must be changed.  

Finally, it is also advantageous if the shaping layers are made of plastic and / or rubber and with predefinable Damping properties are formed. By using form layers with the desired damping behavior, it is also possible after the deformation of the shaping layers, the remaining ones Damping properties for damping the ski movements of the sandwich component or the strips and profiles in the sandwich component to each other use. This is particularly advantageous for sandwich components that are in a ski can be used, because the damping behavior of the ski can also be controlled for different bending stresses.

The invention is described below with reference to the drawings Embodiments explained in more detail.

It shows

FIG. 1 shows a ski with an inventively formed sandwich component forth provided in plan view, partly in section;

Fig. 2 shows the ski of Figure 1 in side view, partially in section;

Fig. 3 is a cross section of the ski according to the lines III-III in Fig. 1;

Fig. 4 is a cross section of the ski according to the lines IV-IV in Fig. 1;

FIG. 5 shows the ski in front elevation cut according to the lines VV in Fig. 1;

Fig. 6 shows another embodiment of a sandwich component with spaced bands or profiles in front view, cut in front;

FIG. 7 shows a further embodiment of a ver with shaping layers provided for the ski in front view, in cross section;

Figure 8 shows another position of the rods in a sand wichbauteil view after the deformation of the shaping layer in Stirnan cut;

Figure a sandwich component according to the invention in end view, are arranged with disposed between the shaping layers profiles, which is offset from the outer profile of amount, in end view, in section 9; Fig.

FIG. 10 shows a cross section through the sandwich component according to FIG. 9 in a different cross-sectional area of the sandwich component in an end view;

Fig. 11 shows another variant view of a sandwich component in front, cut;

FIG. 12 is a sandwich component according to the invention in front view, ge cut with a profile surrounding shaping layer in the undeformed state;

FIG. 13 is the sandwich component of Figure 12, relative to each other at ver shaped profiles.

FIG. 14 shows the sandwich component according to FIG. 13, with profiles formed relative to one another in a different cross-sectional area;

Figure 15 shows a sandwich component with an angular shape forming layers in front view, cut.

Fig. 16 cut part of a shaping layer, with a schematic representation of the different cell structures in the compressed edge and in the central region.

In Figs. 1 and 2, a ski 1 is shown with a different width in the longitudinal direction and 2 Thickness 3. The ski 1 has a core 5 formed as a sand wichbauteil 4 . The sandwich component 4 is composed of a plurality of layers arranged in the longitudinal direction of the ski 1 , of webs or profiles 6 , for. B. rod-shaped material, which are interconnected via intermediate layers. The core 5 is embedded between cover layers 7, 8 , which form the surface 9 and the tread of the ski 1 .

As can be seen in FIGS . 1 and 2, shaping layers 10 extending in the longitudinal direction of the ski 1 are provided with different cross sections perpendicular to the longitudinal direction of the ski. The changing in the longitudinal direction of the ski 1 outline geometry of the shaping layers 10 is achieved by an elastic spatial deformation or deformation of the shaping layer 10 . Due to the deformation or reshaping of the shaping layer 10 , a distance 11 between the profiles 6 is variable and z. B. approximately in a ski center 12 smaller than a distance 13 closer to a tip 14 and an end 15 of the ski 1 . Characterized a waist and a corresponding thickness profile of the ski 1 is achieved with a same cross-section of the profiles 6 of the web or rod-shaped materials in the longitudinal direction of the ski. For a clearer representation of the layers and layers, the dimensions of the ski 1 are shown in a distorted scale in FIGS . 1 and 2.

In FIGS. 3 to 5 of the ski 1 is cut at a larger scale represents Darge, so that the structure of the core 5 and the sandwich component 4 can be seen better with the rod-like materials formed from layers and intermediate layers.

The sandwich component 4 has in the longitudinal direction of the ski 1 several, in the example shown Darge three, over a width 16 of the ski 1 approximately uniformly divided shaping layers 10 . Between each two formation layers 10 is a profile 17 , z. B. a rod-shaped component z. B. made of wood, arranged and with the shaping layer 10 at a loading contact surface 18 z. B. connected by gluing or foaming the molding layer 10 . On side surfaces 19 of the outer shaping layers 10 and connected to them, for. B. glued, are arranged from rod-shaped wood or plastic material, resistant to external loads side cheeks 20 which form the side boundaries of the ski 1 .

The ge through the side walls 20 , shaping layers 10 and profiles 17 formed sandwich component 4 has a substantially rectangular cross section with the width 16 and a height 21 . In the direction of the upper surface 9 of the ski 1 are connected to the sandwich component 4 , z. B. more layered intermediate layers 22 are arranged. The surface 9 is covered by an impact and / or scratch-resistant protective layer 23 covering the intermediate layers 22 and the tread by a friction-reducing tread covering 24 and by edge elements 25 extending in the longitudinal direction of the ski 1 , for. B. steel edges formed, which give the ski 1 the necessary sides stop even in hard and icy slope conditions.

As can be seen from the different hatching directions of the shaping layers 10 in FIGS. 3 to 4, the cross section of the ski 1 is thereby the required width ratios corresponding to the waist in the ski center 12 and the larger width 2 in the direction of the tip 14 and the end 15 adjusted that the shaping layers 10 are deformed in the direction of the arrows 26 in the ski center 12 .

As can be seen further in FIG. 5, it is possible that shaping layers 10 by a force applied in the direction of arrows 27 to change to different heights 28th The thickness 3 of the ski 1 can thereby be changed in its longitudinal direction. Thus, through the deformation and / or reshaping of the shaping layer 10 arranged along the central axis, a profile 29 z. B. to form a guide groove 30 rela tively offset from other profiles or to install a support member 31 , such as. B. in the binding area of the ski 1 for mounting a ski binding.

In Figs. 6 to 8 is composed of shaping layers 10 and side walls 20 formed sandwich component 4, shown in cross section. In this exemplary embodiment, z. B. across the width 2 of the ski 1 three profiles 32 , z. B. core rods and two side walls 20 connected in their longitudinal direction by the shaping layers 10 . In the example shown, the shaping layers 10 are formed from a deformable and / or deformable material with a cell structure. Due to the deformation and / or reshaping of the shaping layers 10 , the position of the profiles 32 and the side cheeks 20 in relation to one another can be dependent on the desired cross-sectional shape of the ski 1 , e.g. B. in the region of the edge elements 25 of the guide groove 30 or for installing the support member 31 , are formed. By a height offset 33 , it is z. B. possible to form the support elements 31 as profiled support elements 34 , which fix the position of the shaping layers 10 and at the same time should give the ski 1 a higher torsional rigidity, which is particularly advantageous in the case of fast corners on uneven slopes.

As can further be seen from FIG. 8, it is also possible to arrange the profiles 32 at an angle 35 to one another by the height according to the different deformation of the shaping layer 10 . To achieve a trapezoidal cross-sectional shape of the ski 1 , it is e.g. B. further possible, by a spatial deformation and / or reshaping of the shaping layer 10 arranged between the profile 32 and the side cheek 20 , assign the side cheek 20 at an angle 36 relative to the adjacent profile 32 . The different deformation and / or deformation ratios in the shaping layers 10 can be seen from the size ratios and from the more or less distorted representation of the schematically indicated cell structure. For the sake of clarity, no cover layers 8 are shown in FIGS . 6 to 8 and the outline shape of the ski 1 of the edge elements 25 and the guide groove 30 is indicated by dash-dotted lines.

In FIGS. 9 and 10 further comprising a cross-section of a ski 1 with its sandwich component 4 in the region of the middle of the ski 12 and shown in Rich the tip tung 14 arranged blades 37 in the region. About the width 2 of the ski 1 are in this embodiment variant on both sides of the central axis in the longitudinal direction of the ski 1 interconnected profiles 32 are arranged, each with a shaping layer 10 with further, between the sides 20 and the shaping layers 10 arranged profiles 38 , a related party . The profiles 32 and 38 have the same height 28 , the profiles 32 having a height offset 33 from the profiles 38 due to the deformation and / or shaping of the shaping layer 10 . This makes it z. B. possible, in the cross-sectional area 39, 40 formed by the height offset 33 , in the area between the cover layers 8 and the sandwich component 4, the strength and / or the damping behavior of the ski 1 influencing support and / or damping layers 41 and / or support elements 34th to provide. It can be seen as further to FIGS. 9 and 10, the different width 2 may be of the ski 1 in the middle of the ski 12 and in the region of the blade 37 by a different deformation of the shape gebungsschicht 10 in itself the same width 42 of the profiles 32 and 38 it extends will.

In the Fig. 11 shows a further variant for the formation of the sandwich component 4 of the ski 1 is shown in cross-section. The shaping layer 10 is formed by an approximately T-shaped profile arranged in the longitudinal direction of the ski 1 and to an axis of symmetry 43 rotated by 90 degrees. In cross-sectional areas 44 , formed by a web 45 and legs 46 , are in the longitudinal direction of the ski 1 z. B. arranged several rod-shaped profiles 38 and connected to the shaping layer 10 . On the side surfaces 19 of the legs 46 of the T-shaped shaping layer 10 , further profiles 38 and on these the side cheeks 20 are arranged. By deforming or reshaping the shaping layer 10 , the individual profiles 38 can be z. B. in a mold in a different position to each other. By support elements 34 , for. B. profile strips or thermally deformable bare elements, the position of the individual profiles 38 can be fixed to each other. By between the side walls 20 , the profiles 38 and the shaping layer 10 arranged melting films 47 can be achieved with simultaneous application of a pressure and temperature load both the desired shaping of the cross section, as well as the connection of the elements forming the cross section.

In Figs. 12 to 14, the cross section of a ski 1 is shown, having a plurality of hollow sections formed by forming layers 10, which are arranged in the longitudinal direction of the ski 1. This profile-shaped formation layers 10 are arranged between a plurality of layers 38 connected to the shaping layers 10 . Between the profiles 38 and between a profile 38 and the shaping layer 10 , as well as between the sandwich component 4 and the tread covering 24 and / or the protective layer 23 , layered intermediate layers 22 or profiled support elements 34 are arranged in partial areas of the ski 1 . The intermediate layers 22 can also be used as a melting furnace 47 , e.g. B. made of polyethylene. This z. B. when applying a temperature load on the sandwich component, the individual profiles 38 effectively glued to one another and to the shaping layer 10 . As can be seen from the figures shown, the hollow profiles of the formation layers 10 with filler rods 48 , z. B. made of wood or plastic, with a compared to the shaping layer 10 other strength and / or damping properties having material to achieve an inte grated component. It is also possible to foam the hollow profiles.

From FIGS. 13 and 14 can also be seen that it is possible even with the use of hollow profile-shaped shaping layers 10 to spend in mutually different positions of the profiles 38, the supporting elements 34, the edge elements 25 and guide grooves 30 in the cross-sectional profile of a ski 1 to integrate.

In the Fig. 15 of the ski 1 about arranged symmetrically to the axis of symmetry 43 x-shaped shaping layers 10 are shown to form a sandwich component 4 in the longitudinal direction, which are connected via intermediate layers 22 with profiles 38th The intermediate layers 22 can for easy production of a dressing for the sandwich component 4 from melting furnace 47 , for. B. made of polyethylene. Due to different material components and / or different deformation and / or deformation measures in the manufacture of the sandwich component 4 or the shaping layers 10 , the x-shaped profiled shaping layers 10 in their cross-sectional extent and / or in their longitudinal extent under different strength and / and or have damping properties. Where overall the mechanical and / or dynamic behavior of a ski 1 can be adapted to the different operating conditions of such a sports device. So z. B., as can further be seen from FIG. 15, at the intersection of the leg 49 of the x-shaped profiling layer 10 in the longitudinal direction thereof, a cavity 50 is provided for receiving a medium 51 changing its physical state at different temperatures. It is also z. B. possible to apply the medium 51 according to optionally defined parameters with variable pressure, according to double arrow 52 , from a pressure system 53 in order to, for. B. to adapt the behavior of the ski 1 to external conditions.

For the production of such sandwich components, as in the present Description are shown, can now be performed by the following methods be walked:

As a shaping layer 10 z. B. a molded foam with a Raumge weight of 40 to 80 kg / m³ can be used, which can be produced in production lengths as a band, strip, profile or even in ski lengths adapted fixed lengths. The shaping layer 10 z. B. cut from foam plastic sheets or foamed in molds as a finished component. It is now e.g. B. possible, the shaping layers 10 ge together with the prefabricated profiles 38 , side cheeks 20 , intermediate layers 22 , protective layers 23 , edge elements 25 and the tread surface 24 to be introduced into a molding press and the ski 1 without further subsequent mechanical processing by application of a Surface to form distributed load under the influence of temperature. It is particularly expedient between the sandwich component 4 forming elements melt films 47, z. B. made of polyethylene, to arrange the melt when he heats and form an insoluble adhesive layer for connecting the elements. Due to the distributed load over the surface under simultaneous temperature action, the cell structure of the shaping layers 10 is thermally influenced, it being z. B. to a reduction in the thickness of the shaping layer 10 due to this compression process and thus to a breakdown of the cell structure in the edge region of the shaping layer. This makes it possible to give the shaping layers in the edge area a higher density and a higher density by choosing the appropriate temperature and pressure load, in order to adapt the density and density and mechanical and dynamic behavior of the shaping layers to the desired applications. Due to the deformability and / or formability of the shaping layers 10 of the sand wichbauteiles 4 , the external shaping of the ski 1 , such as thickness and width ratios when using in the longitudinal direction in cross section the same profile 38 can be done very easily.

If an adhesive is used for the adhesive layer, it must be ensured that it still maintains its adhesive effect even after it has been heated to approximately 150 ° C. or liquefies in this temperature range. This ensures that the adhesive during the temperature and Druckbe load in the manufacture of the sandwich component 4, the individual construction elements of the sandwich component 4 permanently glued.

With regard to the materials used for the shaping layers 10, the intermediate layers 22 and the profiles 32, 38 , the use of the device and the method according to the invention is not restricted. For example, foams, hard and soft plastics, wood or metal, laminates or carbon fiber components can be used.

In the Fig. 16 is a section finally shown by a disposed between the intermediate layers 22 shaping layer 10. As can be seen from this sectional illustration, the differently thick shaping layer 10 has differently deformed surface areas 54, 55 . The shaping layer 10 and the associated intermediate layers 22 must allow a certain deformation to material destruction to allow 10 the profile of the shaping layer without substantial work. This representation should show the mode of action of the mechanical and thermal compression in the area 55 of the shaping layer 10 compared to the area 54 . As can be seen, in the edge region facing a surface 56, the open cells 57 are formed by a spatial lattice made of plastic with a large number of webs 58 and are squeezed together by the mechanical and thermal compression, as a result of which the approximately spherical cells 57 and also these connecting webs 58 are compressed and partially broken. By this deformation under pressure and temperature, the strength as well as the density and the space weight in the edge area facing the surface 56 is increased. If this compression takes place over a large area, it decreases linearly or progressively in the direction of the central area, depending on the selected processing criteria, up to the central area in which the originally unchanged cell structure remains.

The solution according to the invention therefore differs from those shaping layers in which, for. B. a corrugated cardboard between profiles inserted, by changing the distance of the individual cardboard strips causes a cross-sectional change in the outer dimensions of a ski 1 , since with such a component neither the mechanical nor the dynamic strength properties can be influenced.

Of course, the individual Aus described above leadership examples and those shown in these embodiments Variants and different designs each independently form inventive solutions, but also in any combination be kidneyed.

List of reference symbols

1 ski
2 width
3 thickness
4 sandwich component
5 core
6 profile
7 top layer
8 top layer
9 surface
10 shaping layer
11 distance
12 ski center
13 distance
14 top
15 end
16 width
17 profile
18 touch area
19 side surface
20 sidewalls
21 height
22 intermediate layer
23 protective layer
24 tread surface
25 edge element
26 arrow
27 arrow
28 height
29 profile
30 guide groove
31 support element
32 profile
33 height offset
34 support element
35 angles
36 angles
37 shovel
38 profile
39 cross-sectional area
40 cross-sectional area
41 base and / or damping layer
42 width
43 axis of symmetry
44 cross-sectional area
45 bridge
46 legs
47 melting foil
48 filling stick
49 legs
50 cavity
51 medium
52 double arrow
53 printing system
54 area
55 surface area
56 surface
57 cell
58 footbridge

Claims (23)

1. Sandwich component, in particular for skis, with several cover and / or core layers, made of sheet or rod-shaped materials, are the layers which are connected to one another via intermediate layers, characterized in that an intermediate layer ( 22 ) as the shaping layer ( 10 ) is in particular elastically deformable and / or deformable. 2. Sandwich components according to claim 1, characterized in that the core ( 5 ) consists of a plurality of in the longitudinal direction parallel to each other running tapes and / or profiles ( 6, 17, 29, 32, 38 ), which over the shaping layers ( 10 ) are connected in directions perpendicular to the longitudinal direction. 3. Sandwich components according to claim 1 or 2, characterized in that the shaping layer ( 10 ) is spatially deformable and can be determined in the deformed position. 4. Sandwich components according to one or more of claims 1 to 3, characterized in that at different relative positions of the strips or profiles ( 6, 17, 29, 32, 38 ) the shaping layer ( 10 ) in the same cross-sectional areas a different density having. 5. Sandwich components according to one or more of claims 1 to 4, characterized in that the shaping layer ( 10 ) over the length of the strips or profiles ( 6, 17, 29, 32, 38 ) has a different density. 6. Sandwich components according to one or more of claims 1 to 5, characterized in that the shaping layer ( 10 ) comprises a spatial support structure, in particular a cell structure. 7. Sandwich components according to one or more of claims 1 to 6, characterized in that the cell structure of the shaping layer ( 10 ) is compressed and / or deformed in the case of relatively displaced bands or profiles ( 6, 17, 29, 32, 38 ) and in particular is fixed in this position by a tape or profile. 8. Sandwich components according to one or more of claims 1 to 7, characterized in that the shaping layer ( 10 ) is deformable, in particular thermally cracked. 9. Sandwich components according to one or more of claims 1 to 8, characterized in that the strips or profiles ( 6, 17, 29, 32, 38 ) on the thermally deformed shaping layer ( 10 ) are held in different rela tive positions to each other . 10. Sandwich components according to one or more of claims 1 to 9, characterized in that the strips or profiles ( 6, 17, 29, 32, 38 ) in the case of a deformed shaping layer ( 10 ) by a support element ( 34 ) in under different relative positions to each other are held or fixed. 11. Sandwich components according to one or more of claims 1 to 10, characterized in that the strips or profiles ( 6, 17, 29, 32, 38 ) form cavities and the shaping layer by foaming the cavities, for. B. is formed with a tough elastic PU foam. 12. Sandwich components according to one or more of claims 1 to 11, characterized in that between the bands and / or profiles ( 6, 17, 29, 32, 38 ) and the shaping layer ( 10 ) melting furnace ( 47 ), for. B. polyethylene films are arranged, which form an adhesive connection under the action of heat and / or pressure and after curing a position fixation of the tapes and / or profiles ( 6, 17, 29, 32, 38 ) and the shaping layer ( 10 ). 13. sandwich parts according to one or more of claims 1 to 12, characterized in that the shaping layers ( 10 ) with the ver binding bands or profiles ( 6, 17, 29, 32, 38 ) cut a regular cross, in particular one rectangular or square cross-section. 14. Sandwich components according to one or more of claims 1 to 13, characterized in that the components with the over the shaping layers ( 10 ) connected bands or profiles ( 6, 17, 29, 32, 38 ) form a prismatic table . 15. Sandwich components according to one or more of claims 1 to 14, characterized in that a core ( 5 ) of a ski ( 1 ) from a plurality of profiles arranged next to one another in the longitudinal direction of the ski and extending parallel to one another ( 6, 17, 29, 32, 38 ), which are connected to one another via shaping layers ( 10 ) running parallel to these, in particular made of plastic foams. 16. Sandwich components according to one or more of claims 1 to 15, characterized in that the individual strips or profiles ( 6, 17, 29, 32, 38 ) of the core ( 5 ) have different distances transversely to their longitudinal direction, in particular perpendicular to the connecting surfaces between the shaping layer ( 10 ) and the strips or profiles ( 6, 17, 29, 32, 38 ) and the shaping layer ( 10 ) stood in the areas with less from between the strips and profiles ( 6, 17th , 29, 32, 38 ) has a higher density. 17. Sandwich components according to one or more of claims 1 to 16, characterized in that the individual strips or profiles ( 6, 17, 29, 32, 38 ) of the core ( 5 ) in one of the connecting surfaces between the forming layers ( 10 ) and the tapes or profiles ( 6, 17, 29, 32, 38 ) are arranged offset from one another on the taking plane. 18. Sandwich components according to one or more of claims 1 to 17, characterized in that when the strips or profiles ( 6, 17, 29, 32, 38 ) are offset from one another in the spatial direction , a density of the forming layer ( 10 ) differs is relative to the density of the shaping layer ( 10 ) with a flat arrangement of dr tapes or profiles ( 6, 17, 29, 32, 38 ). 19. Sandwich components according to one or more of claims 1 to 18, characterized in that the individual strips or profiles ( 6, 17, 29, 32, 38 ) are held in a skewed position with respect to one another by a different deformation of the mold excavation layer ( 10 ) are. 20. Sandwich components according to one or more of claims 1 to 19, characterized in that the core ( 5 ) is formed by a plurality of parallel, mutually directly connected rods, for example wooden rods, which in particular symmetrical to a longitudinal central axis of the core ( 5 ) arranged shaping layers ( 10 ) are connected to further profiles ( 6, 17, 29, 32, 38 ) or strips. 21. sandwich parts according to one or more of claims 1 to 20, characterized in that individual profiles ( 6, 17, 29, 32, 38 ) or strips are formed in several parts and these strips or profiles ( 6, 17, 29, 32, 38 ) and / or their parts are connected to one another via shaping layers ( 10 ) arranged in an angular position, in particular perpendicular to one another. 22. Sandwich components according to one or more of claims 1 to 21, characterized in that at least individual strips or profiles ( 6, 17, 29, 32, 38 ) are surrounded on all sides by a shaping layer ( 10 ) and via this with the adjacent strips or profiles ( 6, 17, 29, 32, 38 ) is connected. 23. Sandwich components according to one or more of claims 1 to 22, characterized in that the shaping layers ( 10 ) are formed from plastic and / or rubber and are designed with predefinable damping properties.