FI59026C - MAONGSKIKTIG SKIDA - Google Patents

Description

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JgBTA m (i1) utlAggNINGSSKRIFT 5 9026 C Patent granted 10 06 1931 (^ ®) Patent mfddelat J (Si) Kv.Nc.Va · 3 A 63 C 5/12 FINLAND —FINLAND (21) PK ^ ttll »k * fm »» -P «t« nttiwökn (n | 76lU62 (22) HtktfnlapUvft - An * 6kntnx * di {24.05.76 ^ (23) Alkupllvt — GlMghacadag 2k. 05.76 (41) T «HwCliHkiMksI - Whrtt 27.11.76

HtMttf. I »nkistarlhalllti ·· (m« tint · och r * gist «rftyr« lMn AraMcm utlafd och utl ^ krtfun puMkand 27.02.8l (32) (33) (31) hrjrf * t * y · ο »βΐΐΜΐι · - * ^ «Pd priork« c 26.05.75 Austria-Österreich (AT) A 3986/75 (71) Fischer Gesellschaft mbH, Griesgasse 10-11, A-U910 Ried im Innkreis,

The present invention relates to a multilayer ski with a multilayer ski which has the following characteristics: (72) Rudolf Hieblinger, Ried im Innkreis, Austria-Austria (AT) (7 * 0 Leitzinger Oy (54) a core, an upper and a lower core covering strip, the profile edges being arranged along the longitudinal edges of the strips, which at a distance from the strip support the cover layer and the tread layer.

The skis are mostly made using double laminates, in which case, above all, the plastic core and the metal laminate are glued with an elastic glue. Skis of this quality are well known and assembled under the influence of heat using duroplastic adhesives. Although this method of joining the different parts of the ski is in itself simple, there are problems in selecting the quality of the adhesives and thus the components to be joined, given that the ski is repeatedly subjected to very high stresses depending on the skier's full performance, skiing style and not least large temperature fluctuations.

It is further known to provide ski structures with a frame-like basic structure molded or foamed with a plastic mass as a ski body. One such spherical basic structure is formed, as disclosed in German Offenlegungsschrift No. 2,014,025, by side walls and a connecting strip, possibly with perforations, extending to the width of 2,59026 skis, running along the bottom side or in the middle region. The disadvantage of these skis is, above all, the expensive manufacture of the frame-like basic structure.

Finally, German Offenlegungsschrift No. 2,0U,952 has become known as a layered ski with a foam core and an upper and lower cover plate, the heart having longitudinally spaced H-shaped reinforcement profiles with perforated walls. The arms of these profiles run parallel to the tread in the middle of the ski. With the exception of the unsatisfactory running characteristics of the ski, the fitting of the steel edges creates problems as well as in the ski of the structure described above.

The object of the present invention is to provide measures for the simple solution of all these problems, and to achieve the set goal in a ski of the quality initially mentioned, both strips are provided with perforations distributed along their entire length and the core is formed of foamable plastic filling the holes of both strips. the spaces between the opposite cover and tread layers and connects the strips to the layers as well as the edges.

This ski takes advantage of the excellent running properties of a multilayer ski, from which the structure according to the invention originates, with the advantage of very simple manufacture, in which foaming, as surprisingly stated, all parts, including the steel edges, are bonded together satisfactorily.

Advantageously, the recesses are formed as perforations.

According to the invention, a method for producing such skis is proposed, characterized in that the steel edges on the sides, the tread layer, the upper cover layer and the perforated strip are placed between the two layers, after which the space between the strips for reinforcing the ski core is filled with foam. penetrates through the holes in the strips and fills the spaces between the strips and their opposite layers, providing a contour between the strip and the core.

Other details of the invention will be explained in more detail with reference to the drawing showing two embodiments of a ski according to the invention, in which Figure 1 shows a cross-section of a first embodiment of a ski according to the invention and Figure 2 shows a cross-section of a second embodiment of a ski in a foam core.

The ski according to Figure 1 is formed by the ski core 1, the upper and lower strips 2 and 3, respectively, the steel edges MA, MB, the tread layer 5, the cover layer 6 and the upper edges 7A, 7B.

The strips 2, 3 extend over the entire width of the core and the edges 7A, 7B, respectively. MA, MB and have holes 8 which can be arbitrarily distributed over the entire length of the strips.

Both the upper edges 7A, 7B and also the steel edges MA, MB are L-shaped in cross section and rest on their longer branch, which in a known manner has, for example, successive round openings on the edge side against the strip 2 and 3, while the space between the shorter branches is filled with a tread layer 5 or a cover layer 6, so that a space 9 is formed between the strip 2 and the cover layer and the strip 3 and the tread layer 5, which fills the holes 8, including the foam, with the foam 1, as described below; the components between the strips 2, 3 and outside the strips become firmly connected to the base body by the action of the foam.

Fig. 2 shows a simple solution for fixing the upper edge, to which the manufacturing method will also be explained in more detail with reference to the figure. In this embodiment of the ski, the profile upper edges 7A?

This ski can be manufactured as follows. The overlapping tread layer 5, the steel edges MA, MB and the lower load-bearing strip 3 are held in their positions of use by means of the recess 13 on the edge side of the mold for foaming the ski.

A shoulder IM is made on the edge opposite the second recess 13 of the mold, on which the upper load-bearing strip 2 is placed, after its longitudinal edges have been inserted into the slots 11 of the profile upper edges 7A ', 7B'. Finally, an upper cover layer is placed filling the upper edges 7A ', 7B the space bounded by the upwardly rising arms, close the mold and foam the interior. As already mentioned, the foam forming the core 1 penetrates through the holes 8 into the spaces 9 and all the pores between the substrate surfaces of the different parts, so that these parts are firmly connected to each other even without pre-gluing, so that the ski parts can be assembled satisfactorily by an extremely simple and inexpensive method.

Of course, various structural changes can be made within the scope of the invention. Thus, the tread-side steel edges HA, HB as well as the upper edges 7A ', 7B' can be provided with slots with slots into which the lower strip 3 is fitted. Finally, it is possible to replace the upper layer with a lacquer coating, a lacquer layer, a filling compound or the like.

Claims (3)

59026 A multilayer ski with a core, an upper and a lower core covering strip, the longitudinal edges of the strips being provided with profile edges spaced apart from the strip by a cover layer and a tread layer, characterized in that both strips (2, 3) are provided throughout length-perforated (8) and that the core (1) is formed by a foamable plastic which fills the holes (8) of both strips (2, 3), filling the gaps between the strips (2, 3) and the opposite cover and tread layers (6 and 5, respectively). spaces (9) and connects the strips (2, 3) to the layers (5, 6) as well as to the edges (7A, 7A ', 7B, 7B' and 4A, 4B). Ski according to Claim 1, characterized in that the upper edges (7A1, 7B ') and / or the tread-side steel edges (4A, 4B) have an L-shaped cross-section with slits (11) with branches provided with strips (2, 3). has been pushed. A method of manufacturing skis according to claim 1, characterized in that the tread layer (5), the upper cover layer (6) and the perforated strip (2,3) are placed in the mold at a distance between the two layers, followed by the space (1) between the strips for making the ski core is filled with foamable plastic so that it penetrates through the holes (8) of the strips and fills the spaces (9) between the strips (2,3) and their opposite layers (5,6), giving a shape connection between the strip (2,3) and the core (1).