EP0419779B1 - Ski - Google Patents

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Publication number
EP0419779B1
EP0419779B1 EP90112776A EP90112776A EP0419779B1 EP 0419779 B1 EP0419779 B1 EP 0419779B1 EP 90112776 A EP90112776 A EP 90112776A EP 90112776 A EP90112776 A EP 90112776A EP 0419779 B1 EP0419779 B1 EP 0419779B1
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EP
European Patent Office
Prior art keywords
ski
segments
intermediate layer
layer
absorber
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP90112776A
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German (de)
French (fr)
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EP0419779A1 (en
Inventor
Anton Arnsteiner
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Blizzard GmbH
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Blizzard GmbH
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Priority to AT90112776T priority Critical patent/ATE95074T1/en
Publication of EP0419779A1 publication Critical patent/EP0419779A1/en
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Publication of EP0419779B1 publication Critical patent/EP0419779B1/en
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00Skis or snowboards
    • A63C5/12Making thereof; Selection of particular materials
    • A63C5/126Structure of the core
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00Skis or snowboards
    • A63C5/12Making thereof; Selection of particular materials

Definitions

  • the invention relates to a ski with a ski body and a plate applied in the binding region of the ski body.
  • a ski In order to keep this stress as low as possible, a ski should be able to buffer impacts from the ski shovel and to dampen impacts directly on the underside of the ski.
  • a generic ski is already known from the unpublished DE-U-89 05 419, in which an absorber plate serves to dampen and decouple the binding from the ski body.
  • This absorber plate is connected to the ski body in a particularly stable manner by a tongue and groove connection.
  • the task is to provide additional training for the generic ski, according to that the impact energy absorbed by the ski body during the run is absorbed as well as possible, the ski being designed to be as robust as possible.
  • the cover layer consists of a material with a modulus of elasticity of 104 to 105 N / mm2.
  • a material can be aluminum, for example.
  • the intermediate layer arranged under the cover layer and the absorber slide piece encased in the basic ski body are made of a material with an elastic modulus of approximately 10 2 N / mm 2.
  • This material can advantageously be an elastomer. In this case, it also has the advantageously desired entropy-elastic properties.
  • a further absorber layer for screw decoupling is arranged within the ski body in the area in which the binding screws protrude into the ski body.
  • the entire binding is embedded elastically, so that the binding is decoupled from longitudinal vibrations.
  • a surface made of a common surface material for example ABS, phenol, epoxy, polycarbonate, etc.
  • the plate consisting of the top and intermediate layers is glued to this surface. This ensures that there is no disruptive influence on the absorber sliding piece, which is advantageously made of elastomer, during ski manufacture.
  • the intermediate layer of the plate glued to the ski surface can be similar to the corresponding intermediate layer in accordance with. of DE-U-89 05 419. Accordingly, the intermediate layer is made up of several segments of different stiffness.
  • the intermediate layer of the plate contains several segments, for example essentially perpendicular to the side edges of the ski body, with properties that are as entropy-elastic as possible and several segments with high bending stiffness.
  • the segments with high bending stiffness are advantageously arranged at the locations of the absorber plate where the fastening elements for anchoring the ski binding in the ski body pass through it.
  • the rigid elements can only be arranged in the outer zones of the intermediate layer. Another advantage is obtained if the rigid elements are designed as hollow profiles, since this saves weight.
  • the absorber slider can also be an advantageous embodiment of differently rigid segments that are substantially perpendicular to the ski side edges are formed. These segments can run across the entire width of the ski base.
  • the ski can be configured particularly advantageously by that a GRP prepreg is applied below the rigid intermediate layer, which extends essentially over the entire ski area. These are preferably so-called 45 ° GRP prepregs, which advantageously reduce any kind of torsional vibrations and improve the overall edge grip of the ski.
  • Fig. 1 the ski base body 10 is shown in its normal position in a solid line.
  • the dashed line indicates practiced stroke deformed while driving.
  • the direction of force of such a blow acting on the ski shovel is shown by the large arrow marked 1 in FIG. 1.
  • the large arrow marked with 2 indicates impacts that act directly below the binding on the ski and according to. the smaller arrow 2 would be fully transferred to the ski boot 5 and thus to the skier, not shown, without buffering.
  • a plate 12 extends below the binding parts 6 and the ski boot 5 on the ski surface. This plate is glued onto the basic ski body. Below this plate 12, an absorber slider 18 is embedded in the basic ski body. In the area of the fastening elements of the ski binding 6 there are also absorber layers 20 which serve for the elastic embedding of the screws and thus decouple the entire binding from longitudinal vibrations.
  • the plate 12 is accordingly applied to the surface layer 22 of the basic ski body 10, preferably glued on.
  • the plate 12 consists of the rigid cover layer 14 and the less rigid, but as entropy-elastic intermediate layer 16.
  • the cover layer 14 consists, for example, of aluminum Intermediate layer 16 made of elastomer and the surface of the ski base body 10 made of phenol.
  • Below the surface layer 22, upper edges 24 are arranged laterally, between which the possibly entropy-elastic absorber slide 18 extends. This advantageously also consists of elastomer.
  • an absorber layer 20 is partially widened between the side cheeks 26, since the binding screws are screwed into this region, so that they are elastically embedded in the absorber layer 20.
  • a prepreg layer 28 is arranged below the surface layer 22 in addition to the embodiment shown in FIG. 2. Below this is the layer from the absorber slider 18 and the upper edges 24 surrounding it, which has already been explained. Narrow isoflex strips run directly below the upper edges 24 and just cover the joint between the upper edges 24 and the absorber slide 18. Below is an upper chord made of GRP over the entire width of the ski.
  • the inner structure 34 and the absorber layer 20 previously explained are arranged between these.
  • the lower flange 36 Below the lower flange 36 are arranged laterally extending rubber strips 40, which serve an additional cushioning compared to the steel edges 42 adjoining them. Between the laterally extending steel edges 42 is a tread, for example made of polyethylene. Above the tread cover up to the lower flange 36 additional narrow lower chords 46 and 48 and a further intermediate layer 50. In order to ensure a good bond, the lower flange 46 is designed as a prepreg.
  • the top view acc. 4 shows the arrangement of the plate 12 on the basic ski body 10.
  • the distance c of the transverse center line of the plate 12 from the end edge of the basic ski body 10 is ideally between approx. 755 - approx. 890 mm for a ski length of 180 cm - 210 cm.
  • the top view of the plate 12 is in the form of a non-rectangular parallelogram.
  • the total length of the most distant corners of this oblique parallelogram with a ski length variation of 180 cm - 210 cm is ideally approx. 620 - 720 mm.
  • From the sectional view acc. 5 shows the arrangement of the absorber slide 18. This is arranged in the immediate binding area and is bordered by narrow upper straps 52 adjoining the ski shovel and the ski end.
  • the top chords are composed, for example, of a GRP layer and a prepreg layer arranged above it.
  • the upper straps 52 and the absorber slide 18 are laterally bordered by the side cheeks 24.
  • the length a of the absorber slider is ideally for a ski length of 180 cm - 210 cm, 530 - 620 mm.
  • the absorber layer 20 consists of an entropy-elastic as possible Material.
  • polyurethane can be used as the elastomer.
  • the absorber layer 20 is enclosed by a conventional interior 34, which consists for example of okoume. This is bordered laterally by the side cheeks 26 from, for example, phenol.
  • a continuous 45 ° GRP prepreg intermediate layer which is arranged between the entropy-elastic intermediate layer 16 and the absorber layer 20, is not shown in the figures.
  • This GRP prepreg interlayer reduces torsional vibrations of various types and thus contributes to comfort. It also improves the edge grip of the entire ski.

Abstract

The invention relates to a ski having a ski body and a plate mounted in the binding region of the ski body. In order to provide a ski which absorbs the impact energy received by the ski body during skiing as well as possible, but is intended to be of a design which is as robust as possible, a plate (12), consisting of a bending-resistant covering layer (14) and an intermediate layer (16) of less bending resistance arranged below the latter, is mounted on the ski body (10). Additionally, an absorber slide piece (18) is mounted in the ski body near to the surface in the binding region. <IMAGE>

Description

Die Erfindung betrifft einen Ski mit einem Skikörper und einer im Bindungsbereich des Skikörpers aufgebrachten Platte.The invention relates to a ski with a ski body and a plate applied in the binding region of the ski body.

Während des Skilaufens werden aufgrund der Unebenheiten des Untergrunds, über den der Ski gleitet, von dem Ski aufgenommene Schwingungen über die Bindungen auf den Skiläufer hin übertragen. Bei einer biegesteifen Anordnung der Bindung auf den Skikörper wird die so von dem Ski aufgenommene Schlagenergie voll auf den Skiläufer weitergegeben. Das führt u.a. zu einer starken physilogischen Beanspruchung des Skiläufers.During skiing, due to the unevenness of the ground over which the ski slides, vibrations absorbed by the ski are transmitted to the skier via the bindings. In the case of a rigid arrangement of the binding on the ski body, the impact energy absorbed by the ski is fully passed on to the skier. This leads among other things to a strong physical load on the skier.

Um diese Beanspruchung möglichst klein zu halten, sollte ein Ski möglichst in der Lage sein, von der Skischaufel her rührende Schläge zu puffern, und unmittelbar auf die Unterseite des Skis aufgeprägte Stöße zu dämpfen.In order to keep this stress as low as possible, a ski should be able to buffer impacts from the ski shovel and to dampen impacts directly on the underside of the ski.

Um die über die gesamte Länge des Skis vom Untergrund während des Gleitens aufgenommene Schlagenergie nicht vollständig auf die Bindung zu übertragen, ist es bereits bekannt geworden, zwischen der Bindung und dem Körper eine an dem Skikörper befestigte Platte anzuordnen. Diese enthält einen Kern aus einer zähelastischen Gummischicht. Am zum Skiende dieser Platte hinweisenden Ende ist diese über Verbindungselemente mit dem Skikörper fest verbunden. An ihrem zur Skischaufel hinweisenden Ende ist die Platte dagegen schwimmend auf dem Skikörper gelagert. Hier greifen skikörperseitige Bolzen in innerhalb der Platte vorgesehene Längsschlitze, wobei die freien Bereiche der Längsschlitze mit einem gummielastischem Material ausgefüllt sind. Diese Anordnung soll insbesondere dazu dienen, längsgerichtete Schwingungen des Skikörpers aufzunehmen. Allerdings wird mit dieser Anordnung keine befriedigende Absorption der durch den Skikörper während des Laufs aufgeprägten Stöße erreicht. Darüber hinaus sind die zur schwimmenden Lagerung der Platte vorgesehenen Bolzen und ihre entsprechenden Führungen während des Skilaufs hohen Querkräften ausgesetzt, so daß selbst eine starke Dimensionierung dieser Teile eine schnelle Abnutzung nicht verhindern kann.In order not to completely transfer the impact energy absorbed by the ground over the entire length of the ski to the binding, it is known to attach one to the ski body between the binding and the body Arrange plate. This contains a core made of a tough elastic rubber layer. At the end pointing towards the ski end of this plate, it is firmly connected to the ski body via connecting elements. On the other hand, at its end pointing towards the ski shovel, the plate is floating on the ski body. Here, body-side bolts engage in the longitudinal slots provided within the plate, the free areas of the longitudinal slots being filled with a rubber-elastic material. This arrangement is intended in particular to absorb longitudinal vibrations of the ski body. However, this arrangement does not achieve a satisfactory absorption of the impacts imparted by the ski body during the run. In addition, the bolts provided for the floating mounting of the plate and their corresponding guides are exposed to high transverse forces during skiing, so that even a large dimensioning of these parts cannot prevent rapid wear.

Bereits aus der nicht vorveröffentlichten DE-U-89 05 419 ist ein gattungsgemäßer Ski bekannt, bei dem eine Absorberplatte zur Dämpfung und Entkopplung der Bindung vom Skikörper dient. Dieser Absorberplatte ist durch eine Feder-Nutverbindung besonders stabil mit dem Skikörper verbunden.A generic ski is already known from the unpublished DE-U-89 05 419, in which an absorber plate serves to dampen and decouple the binding from the ski body. This absorber plate is connected to the ski body in a particularly stable manner by a tongue and groove connection.

Es stellt sich die Aufgabe, eine zusätzliche Weiterbildung des gattungsgemäßen Skis an die Hand zu geben, gem. der die vom Skikörper während des Laufs aufgenommene Schlagenergie möglichst gut absorbiert wird, wobei der Ski möglichst robust ausgeführt sein soll.The task is to provide additional training for the generic ski, according to that the impact energy absorbed by the ski body during the run is absorbed as well as possible, the ski being designed to be as robust as possible.

Die Lösung dieser Aufgabe ergibt sich aus dem kennzeichnenden Teil des Anspruchs 1. Demnach ist die im Bindungsbereich auf den Skikörper aufgebrachte Platte, die vorzugsweise aufgeklebt wird, aus einer biegesteifen Deckschicht und einer darunter angeordneten weniger biegesteifen Zwischenschicht gebildet. Zusätzlich ist innerhalb des Skikörpers ebenfalls im Bindungsbereich oberflächennah ein Absorber-Gleitstück eingefaßt.The solution to this problem arises from the characterizing part of claim 1. Accordingly, that is in the area of attachment to the Ski body applied plate, which is preferably glued, formed from a rigid top layer and a less rigid intermediate layer arranged below. In addition, an absorber slider is also enclosed in the binding area near the surface within the ski body.

Die Deckschicht besteht aus einem Material mit einem E-Modul von 10⁴ bis 10⁵ N/mm². Ein solches Material kann beispielsweise Aluminium sein. Demgegenüber ist die unter der Deckschicht angeordnete Zwischenschicht und das im Skigrundkörper eingefaßte Absorbergleitstück aus einem Material mit einem E-Modul von ca. 10² N/mm² gefertigt. Dieses Material kann vorteilhafterweise ein Elastomer sein. In diesem Fall weist es auch die vorteilhaft gewünschten entropieelastischen Eigenschaften auf.The cover layer consists of a material with a modulus of elasticity of 10⁴ to 10⁵ N / mm². Such a material can be aluminum, for example. In contrast, the intermediate layer arranged under the cover layer and the absorber slide piece encased in the basic ski body are made of a material with an elastic modulus of approximately 10 2 N / mm 2. This material can advantageously be an elastomer. In this case, it also has the advantageously desired entropy-elastic properties.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen 2-17. Demnach ist innerhalb des Skikörpers in dem Bereich, in dem die Bindungsschrauben in den Skikörper ragen, eine weitere Absorberschicht zur Schraubenentkopplung angeordnet. Hierdurch wird die gesamte Bindung elastisch eingebettet, so daß die Bindung von Längsschwingungen entkoppelt wird.Advantageous embodiments of the invention result from subclaims 2-17. Accordingly, a further absorber layer for screw decoupling is arranged within the ski body in the area in which the binding screws protrude into the ski body. As a result, the entire binding is embedded elastically, so that the binding is decoupled from longitudinal vibrations.

Zwischen der aus der biegesteifen Deckschicht und der entropieelastischen Zwischenschicht bestehenden Platte und dem skikörperseitigen oberflächennahen Absorber-Gleitstück ist gem. einer vorteilhaften Ausführungsform eine Oberfläche aus einem gängigen Oberflächenwerkstoff, beispielsweise ABS, Phenol, Epoxy, Polycarbonat etc., angeordnet. Auf diese Oberfläche ist die aus Deck- und Zwischenschicht bestehende Platte aufgeklebt. Damit ist sichergestellt, daß es bei der Skiausfertigung zu keinen störenden Einflüssen des vorteilhaft aus Elastomer bestehenden Absorber-Gleitstückes kommt.Between the plate consisting of the rigid top layer and the entropy-elastic intermediate layer and the absorber sliding piece on the ski body side near the surface, according to In an advantageous embodiment, a surface made of a common surface material, for example ABS, phenol, epoxy, polycarbonate, etc., is arranged. The plate consisting of the top and intermediate layers is glued to this surface. This ensures that there is no disruptive influence on the absorber sliding piece, which is advantageously made of elastomer, during ski manufacture.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung kann die Zwischenschicht der auf der Skioberfläche aufgeklebten Platte ähnlich der entsprechenden Zwischenschicht gem. der DE-U-89 05 419 ausgestaltet sein. Demnach ist die Zwischenschicht aus mehreren Segmenten unterschiedlicher Steifigkeit aufgebaut. Dabei enthält die Zwischenschicht der Platte mehrere, beispielsweise im wesentlichen senkrecht zu den Seitenkanten des Skikörpers verlaufende Segmente mit möglichst entropieelastischen Eigenschaften und mehrere Segmente mit hoher Biegesteifigkeit. Die Segmente mit hoher Biegesteifigkeit sind dabei in vorteilhafter Weise an den Stellen der Absorberplatte angeordnet, wo die Befestigungselemente für die Verankerung der Skibindung im Skikörper durch diese hindurchtreten.In a further advantageous embodiment of the invention, the intermediate layer of the plate glued to the ski surface can be similar to the corresponding intermediate layer in accordance with. of DE-U-89 05 419. Accordingly, the intermediate layer is made up of several segments of different stiffness. The intermediate layer of the plate contains several segments, for example essentially perpendicular to the side edges of the ski body, with properties that are as entropy-elastic as possible and several segments with high bending stiffness. The segments with high bending stiffness are advantageously arranged at the locations of the absorber plate where the fastening elements for anchoring the ski binding in the ski body pass through it.

Wenn in weiterer Ausgestaltung der Erfindung mehrere entropieelastische Segmente in der Zwischenschicht mit Segmenten hoher Biegesteifigkeit abwechseln, wird dadurch in vorteilhafter Weise eine hohe Quersteifigkeit bei geringer Längssteifigkeit erzielt. Gem. einer weiteren Ausbildung der Erfindung können die biegesteifen Elemente nur in den Außenzonen der Zwischenschicht angeordnet werden. Ein weiterer Vorteil ergibt sich, wenn man die biegesteifen Elemente als Hohlprofile ausbildet, da hierdurch Gewicht gespart wird.If, in a further embodiment of the invention, several entropy-elastic segments in the intermediate layer alternate with segments of high bending stiffness, a high transverse stiffness with low longitudinal stiffness is advantageously achieved. According to a further embodiment of the invention, the rigid elements can only be arranged in the outer zones of the intermediate layer. Another advantage is obtained if the rigid elements are designed as hollow profiles, since this saves weight.

Auch das Absorber-Gleitstück kann gem. einer vorteilhaften Ausführungsform aus unterschiedlich steifen Segmenten, die im wesentlichen senkrecht zu den Skiseitenkanten verlaufen, gebildet werden. Diese Segmente können über die gesamte Breite des Skigrundkörpers verlaufen.The absorber slider can also be an advantageous embodiment of differently rigid segments that are substantially perpendicular to the ski side edges are formed. These segments can run across the entire width of the ski base.

Besonders vorteilhaft kann der Ski dadurch ausgestaltet werden, daß unterhalb der biegesteifen Zwischenschicht ein GFK-Prepreg aufgebracht wird, daß sich im wesentlichen über die gesamte Skifläche erstreckt. Hierbei handelt es sich vorzugsweise um sog. 45° GFK-Prepregs, die in vorteilhafter Weise Torsionsschwingungen jeglicher Art reduzieren und den Kantengriff des Skis insgesamt verbessern.The ski can be configured particularly advantageously by that a GRP prepreg is applied below the rigid intermediate layer, which extends essentially over the entire ski area. These are preferably so-called 45 ° GRP prepregs, which advantageously reduce any kind of torsional vibrations and improve the overall edge grip of the ski.

Weitere Einzelheiten und Vorteile der Erfindung werden anhand eines in der Zeichnung dargestellten Ausführungsbeispiels erläutert. Es zeigen:

Fig. 1:
eine schematische Seitenansicht einer Ausführungsform des erfindungsgemäßen Skis;
Fig. 2:
eine stufenweise geschnittene Querschnittsdarstellung durch einen erfindungsgemäßen Ski im Bindungsbereich;
Fig. 3:
einen schematischen Querschnitt durch den Ski im Mittelbereich, wobei die einzelnen Schichten auseinandergezogen sind;
Fig. 4:
eine Draufsicht auf den erfindungsgemäßen Ski;
Fig. 5:
einen Längsschnitt entlang der Schnittlinie A-A in Fig. 3 und
Fig. 6:
einen Teillängssschnitt entlang der Schnittlinie B-B in Fig. 3.
Further details and advantages of the invention will be explained with reference to an embodiment shown in the drawing. Show it:
Fig. 1:
a schematic side view of an embodiment of the ski according to the invention;
Fig. 2:
a step-sectional cross-sectional view through a ski according to the invention in the binding area;
Fig. 3:
a schematic cross section through the ski in the central region, the individual layers being pulled apart;
Fig. 4:
a plan view of the ski according to the invention;
Fig. 5:
a longitudinal section along the section line AA in Fig. 3 and
Fig. 6:
3 shows a partial longitudinal section along the section line BB in FIG. 3.

In Fig. 1 ist in durchgezogener Linie der Skigrundkörper 10 in seiner Normallage dargestellt. Die strichlierte Linie deutet an, geübten Schlags während des Fahrens verformt. Die Kraftrichtung eines solchen auf die Skischaufel wirkenden Schlages ist durch den mit 1 gekennzeichneten großen Pfeil in Fig. 1 dargestellt. Aufgrund der Verformung des Skigrundkörpers pflanzt sich die durch den Schlag auf den Skigrundkörper 10 aufgeprägte Erschütterung entlang der kleinen Pfeile 1 bis zur Skibindung fort, wo sie ohne Dämpfung über den Skischuh 5 auf den nicht dargestellten Skiläufer übertragen würde. Durch den mit 2 gekennzeichneten großen Pfeil sind Stöße angedeutet, die unmittelbar unterhalb der Bindung auf den Ski einwirken und sich gem. dem kleineren Pfeil 2 ohne Pufferung voll auf den Skischuh 5 und damit auf den nicht dargestellten Skiläufer übertragen würden.In Fig. 1, the ski base body 10 is shown in its normal position in a solid line. The dashed line indicates practiced stroke deformed while driving. The direction of force of such a blow acting on the ski shovel is shown by the large arrow marked 1 in FIG. 1. Due to the deformation of the basic ski body, the shock imparted by the impact on the basic ski body 10 propagates along the small arrows 1 to the ski binding, where it would be transmitted to the skier (not shown) via the ski boot 5 without damping. The large arrow marked with 2 indicates impacts that act directly below the binding on the ski and according to. the smaller arrow 2 would be fully transferred to the ski boot 5 and thus to the skier, not shown, without buffering.

Der Fig. 1 ist die Anordnung der diese Schläge und Stöße bzw. Schwingungen abpuffernden und dämpfenden Absorber zu entnehmen. Auf der Skioberfläche erstreckt sich unterhalb der Bindungsteile 6 und des Skischuhs 5 eine Platte 12. Diese ist auf den Skigrundkörper aufgeklebt. Unterhalb dieser Platte 12 ist in den Skigrundkörper ein Absorber-Gleitstück 18 eingelassen. Im Bereich der Befestigungselemente der Skibindung 6 sind weiterhin Absorberschichten 20 angeordnet, die zur elastischen Einbettung der Schrauben dienen und damit die gesamte Bindung von Längsschwingungen entkoppeln.1 shows the arrangement of the absorbers which buffer and shock or vibrate and dampen. A plate 12 extends below the binding parts 6 and the ski boot 5 on the ski surface. This plate is glued onto the basic ski body. Below this plate 12, an absorber slider 18 is embedded in the basic ski body. In the area of the fastening elements of the ski binding 6 there are also absorber layers 20 which serve for the elastic embedding of the screws and thus decouple the entire binding from longitudinal vibrations.

In Fig. 2 ist die Anordnung dieser Absorber im Gesamtaufbau des Skis dargestellt. Dieser abgestufte Querschnitt durch den gesamten Ski liegt im Bereich der Bindungsvorderbacken. Letztere sind hier jedoch nicht dargestellt. Die Platte 12 ist demnach auf der Oberflächenschicht 22 des Skigrundkörpers 10 aufgebracht, vorzugsweise aufgeklebt. Die Platte 12 besteht aus der biegesteifen Deckschicht 14 und der weniger biegesteifen, dafür möglichst entropieelastischen Zwischenschicht 16. Die Deckschicht 14 besteht beispielsweise aus Aluminium, die Zwischenschicht 16 aus Elastomer und die Oberfläche des Skigrundkörpers 10 aus Phenol. Unterhalb der Oberflächenschicht 22 sind seitlich Oberkanten 24 angeordnet, zwischen denen sich das möglichst entropieelastische Absorber-Gleitstück 18 erstreckt. Dieses besteht in vorteilhafter Weise ebenfalls aus Elastomer. Im Mittelbereich des Skigrundkörpers ist zwischen den Seitenwangen 26 eine Absorberschicht 20 teilweise verbreitert, da in diesem Bereich die Bindungsschrauben eingeschraubt werden, so daß sie in der Absorberschicht 20 elastisch eingebettet sind.2 shows the arrangement of these absorbers in the overall structure of the ski. This graduated cross-section through the entire ski lies in the area of the binding front jaws. However, the latter are not shown here. The plate 12 is accordingly applied to the surface layer 22 of the basic ski body 10, preferably glued on. The plate 12 consists of the rigid cover layer 14 and the less rigid, but as entropy-elastic intermediate layer 16. The cover layer 14 consists, for example, of aluminum Intermediate layer 16 made of elastomer and the surface of the ski base body 10 made of phenol. Below the surface layer 22, upper edges 24 are arranged laterally, between which the possibly entropy-elastic absorber slide 18 extends. This advantageously also consists of elastomer. In the central region of the basic ski body, an absorber layer 20 is partially widened between the side cheeks 26, since the binding screws are screwed into this region, so that they are elastically embedded in the absorber layer 20.

Anhand der Fig. 3 soll der Vollständigkeit halber noch der weitere Aufbau des Skigrundkörpers 10 im Bereich unterhalb der Skibindung 6 erläutert werden. Unterhalb der Oberflächenschicht 22 ist zusätzlich zu der in Fig. 2 dargestellten Ausführungsform eine Prepregschicht 28 angeordnet. Unterhalb dieser schließt sich die bereits zuvor erläuterte Schicht aus dem Absorber-Gleitstück 18 und den dieses einfassenden Oberkanten 24 an. Direkt unterhalb der Oberkanten 24 verlaufen schmale Isoflexstreifen, die den Stoß zwischen den Oberkanten 24 und dem Absorber-Gleitstück 18 gerade noch überdecken. Unterhalb schließt sich über die gesamte Skibreite ein Obergurt aus GFK an. Der Obergurt 32 umschließt zusammen mit einem ebenfalls aus GFK bestehenden Untergurt 36 den Mittelbau des Skigrundkörpers ein. Dieser besteht zunächst aus den Seitenwangen 26, die beispielsweise aus Phenol bestehen. Zwischen diesen ist der Innenbau 34 und die zuvor näher erläuterte Absorberschicht 20 angeordnet.For the sake of completeness, the further structure of the basic ski body 10 in the region below the ski binding 6 will be explained with reference to FIG. 3. A prepreg layer 28 is arranged below the surface layer 22 in addition to the embodiment shown in FIG. 2. Below this is the layer from the absorber slider 18 and the upper edges 24 surrounding it, which has already been explained. Narrow isoflex strips run directly below the upper edges 24 and just cover the joint between the upper edges 24 and the absorber slide 18. Below is an upper chord made of GRP over the entire width of the ski. The upper flange 32, together with a lower flange 36 also made of GRP, encloses the central structure of the basic ski body. This initially consists of the side cheeks 26, which are made of phenol, for example. The inner structure 34 and the absorber layer 20 previously explained are arranged between these.

Unterhalb des Untergurts 36 sind seitlich längs verlaufende Gummistreifen 40 angeordnet, die einer zusätzlichen Abfederung gegenüber den sich hieran anschließenden Stahlkanten 42 dienen. Zwischen den seitlich verlaufenden Stahlkanten 42 ist ein beispielsweise aus Polyäthylen bestehender Laufbelag eingefaßt. Oberhalb des Laufbelags schließen sich bis zum Untergurt 36 zusätzliche schmale Untergurte 46 und 48 und eine weitere Zwischenschicht 50 an. Um einen guten Verbund zu gewährleisten, ist der Untergurt 46 als Prepreg ausgeführt.Below the lower flange 36 are arranged laterally extending rubber strips 40, which serve an additional cushioning compared to the steel edges 42 adjoining them. Between the laterally extending steel edges 42 is a tread, for example made of polyethylene. Above the tread cover up to the lower flange 36 additional narrow lower chords 46 and 48 and a further intermediate layer 50. In order to ensure a good bond, the lower flange 46 is designed as a prepreg.

Der Draufsicht gem. Fig. 4 ist die Anordnung der Platte 12 auf dem Skigrundkörper 10 zu entnehmen. Die Entfernung c der Quermittellinie der Platte 12 von der Endkante des Skigrundkörpers 10 beträgt bei einer Skilänge von 180 cm - 210 cm idealerweise zwischen ca. 755 - ca. 890 mm.The top view acc. 4 shows the arrangement of the plate 12 on the basic ski body 10. The distance c of the transverse center line of the plate 12 from the end edge of the basic ski body 10 is ideally between approx. 755 - approx. 890 mm for a ski length of 180 cm - 210 cm.

Die Platte 12 weist in der Draufsicht die Form eines nicht rechtwinkeligen Parallelogramms auf. Die Gesamtlänge der am weitest auseinanderliegenden Ecken dieses schiefwinkeligen Parallelogramms beträgt bei einer Skilängenvariation von 180 cm - 210 cm idealerweise ca. 620 - 720 mm.The top view of the plate 12 is in the form of a non-rectangular parallelogram. The total length of the most distant corners of this oblique parallelogram with a ski length variation of 180 cm - 210 cm is ideally approx. 620 - 720 mm.

Aus der Schnittdarstellung gem. Fig. 5 ist die Anordnung des Absorbergleitstücks 18 zu entnehmen. Dieses ist im unmittelbaren Bindungsbereich angeordnet und durch zur Skischaufel und zum Skiende hin anschließende schmale Obergurte 52 eingefaßt. Die Obergurte sind beispielsweise aus einer GFK-Schicht und einer darüber angeordneten Prepregschicht zusammengesetzt. Die Obergurte 52 und das Absorber-Gleitstück 18 sind seitlich durch die Seitenwangen 24 eingefaßt. Die Länge a des Absorber-Gleitstücks beträgt idealerweise bei einer Skilänge von 180 cm - 210 cm, 530 - 620 mm.From the sectional view acc. 5 shows the arrangement of the absorber slide 18. This is arranged in the immediate binding area and is bordered by narrow upper straps 52 adjoining the ski shovel and the ski end. The top chords are composed, for example, of a GRP layer and a prepreg layer arranged above it. The upper straps 52 and the absorber slide 18 are laterally bordered by the side cheeks 24. The length a of the absorber slider is ideally for a ski length of 180 cm - 210 cm, 530 - 620 mm.

Aus der Schnittdarstellung gem. Fig. 6 ist die Gestaltung der Abssorberschicht 20 zu entnehmen. Diese ist in den Bereichen, in denen die Befestigungselemente der Bindung 6 liegen, verbreitert und setzt sich zur Skischaufel, zum Skiende und zwischen den beiden verbreiterten Bereichen als schmaler Streifen fort. Die Absorberschicht 20 besteht aus einem möglichst entropieelastischen Material. Hier kann als Elastomer Polyurethan eingesetzt werden. Die Absorberschicht 20 ist von einem konventionellen Innenbau 34 eingefaßt, der beispielsweise aus Okoume besteht. Dieser ist seitlich von den Seitenwangen 26 aus beispielsweise Phenol eingefaßt.From the sectional view acc. 6 shows the design of the absorber layer 20. This is widened in the areas in which the fastening elements of the binding 6 are located and continues to the ski shovel, to the end of the ski and between the two widened areas as a narrow strip. The absorber layer 20 consists of an entropy-elastic as possible Material. Here, polyurethane can be used as the elastomer. The absorber layer 20 is enclosed by a conventional interior 34, which consists for example of okoume. This is bordered laterally by the side cheeks 26 from, for example, phenol.

In den Figuren nicht dargestellt ist eine durchgehende 45° GFK-Prepreg-Zwischenschicht, die zwischen der entropieelastischen Zwischenschicht 16 und der Absorberschicht 20 angeordnet ist. Diese GFK-Prepreg-Zwischenschicht reduziert Torsionsschwingungen unterschiedlicher Art und trägt dadurch zum Laufkomfort bei. Weiterhin verbessert sie zusätzlich den Kantengriff des gesamten Skis.A continuous 45 ° GRP prepreg intermediate layer, which is arranged between the entropy-elastic intermediate layer 16 and the absorber layer 20, is not shown in the figures. This GRP prepreg interlayer reduces torsional vibrations of various types and thus contributes to comfort. It also improves the edge grip of the entire ski.

Claims (18)

  1. A ski with a ski body and a plate secured in the binding part of the ski body,
    characterized in that
    the plate (12) arranged on the ski body (10) consists of a flexurally rigid cover layer (14) of a material with a modulus of elasticity of approximately 10⁴ to 10⁵ N/mm² and an intermediate layer (16), placed underneath it, which is less flexurally rigid and has a modulus of elasticity of approximately 10² N/mm² and
    in that additionally in the binding part in the ski body an absorber slide member (18) is fitted, which has a modulus elasticity of approximately 10² N/mm², adjacent to the surface underneath the plate (12).
  2. The ski as claimed in claim 1, characterized in that in the part, in which the binding screws extend into the ski body (10) within the ski body (10) an absorber layer (20) is arranged for decoupling the screws.
  3. The ski as claimed in claim 1 or in claim 2, characterized in that the intermediate line (16) and the absorber slide member (18) have as far as possible have entropy-elastic properties.
  4. The ski as claimed in claim 3, characterized in that the cover layer (14) consists essentially of aluminum.
  5. The ski as claimed in any one of the claims 1 through 3, characterized in that the intermediate layer (16) consists of a plurality of segment of different flexural rigidity.
  6. The ski as claimed in claim 5, characterized in that the segment extend essentially perpendicularly to the lateral edges of the ski body (10).
  7. The ski as claimed in claim 5 or in claim 6, characterized in that the intermediate layer (16) has segments (16), whose properties are as far as possible entropy-elastic, and segments with a high flexural rigidity.
  8. The ski as claimed in any one of the claims 5 through 7, characterized in that the segments of the intermediate layer (16) with a high flexural rigidity are arranged adjacent to the plate (10) where elements for attachment to the ski body (10) are provided.
  9. The ski as claimed in claim 8, characterized in that on the one hand one of the segments which is as far as possible entropy-elastic, is arranged in the longitudinal direction of the ski between the flexurally rigid segments and on the other hand a respective entropy-elastic segment adjoins, in the longitudinal direction, one other respective side of the flexurally rigid elements.
  10. The ski as claimed in any one of the claims 1 through 9, characterized in that the segments, which are as far as possible entropy-elastic, of the intermediate layer (16) consist of an elastomer.
  11. The ski as claimed in any one of the claims 1 through 10, characterized in that the flexurally rigid segments of the intermediate layer (16) consist essentially of a phenolic resin.
  12. The ski as claimed in any one of the preceding claims, characterized in that a plurality of segments with entropy-elastic properties and segments with a high flexural rigidity are arranged in alternate succession in the intermediate layer (16).
  13. The ski as claimed in any one of the preceding claims, characterized in that the segments with a high flexural rigidity are only arranged in the marginal part of the intermediate layer (16).
  14. The ski as claimed in any one of the preceding claims, characterized in that the segments with a high flexural rigidity are in the form of hollow sections.
  15. The ski as claimed in any one of the preceding claims, characterized in that the absorber slide member (18) extends over the entire width of the ski.
  16. The ski as claimed in claim 15, characterized in that the absorber slide member (18) consists of segments which extend substantially perpendicularly to the lateral edges of the ski body (10) with as far as possible entropy-elastic properties and segments with a high flexural rigidity, said segments being arranged in alternate succession.
  17. The ski as claimed in any one of the preceding claims, characterized in that between the plate (12) and the absorber slide member (18) a surface layer (22) is arranged.
  18. The ski as claimed in any one of the preceding claims, characterized in that underneath the less flexurally rigid intermediate layer (16) a fiberglass prepreg layer is provided, which extends over at least approximately over the full length or, respectively, the width of the ski.
EP90112776A 1989-09-27 1990-07-04 Ski Expired - Lifetime EP0419779B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90112776T ATE95074T1 (en) 1989-09-27 1990-07-04 SKI.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8911516U 1989-09-27
DE8911516U DE8911516U1 (en) 1989-09-27 1989-09-27

Publications (2)

Publication Number Publication Date
EP0419779A1 EP0419779A1 (en) 1991-04-03
EP0419779B1 true EP0419779B1 (en) 1993-09-29

Family

ID=6843220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112776A Expired - Lifetime EP0419779B1 (en) 1989-09-27 1990-07-04 Ski

Country Status (4)

Country Link
EP (1) EP0419779B1 (en)
JP (1) JPH0796046B2 (en)
AT (1) ATE95074T1 (en)
DE (2) DE8911516U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2703596B1 (en) * 1993-04-08 1995-07-07 Salomon Sa SNOWBOARD, ESPECIALLY SKIING FOR ALPINE SKIING.
DE29921881U1 (en) 1999-12-13 2000-02-03 Blizzard Gmbh Sliding board
SI24530A (en) 2013-11-15 2015-05-29 Elan, D.O.O. Short ski

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH575768A5 (en) * 1973-02-22 1976-05-31 Kaestle Gmbh
US3844576A (en) * 1973-07-18 1974-10-29 Olin Corp Vibration damped ski
FR2437225A1 (en) * 1978-09-28 1980-04-25 Bekaert Sa Nv ADVANCED SKIING
LU80858A1 (en) * 1979-01-31 1980-08-08 Bekaert Sa Nv SKATE SUCH AS SKI AND ITS MANUFACTURING PROCESS
CH671887A5 (en) * 1982-03-25 1989-10-13 Brosi Bettosini
AT374686B (en) * 1982-05-26 1984-05-25 Blizzard Gmbh MULTI-LAYER SKI IN SANDWICH DESIGN
DE3533043A1 (en) * 1985-09-17 1987-03-26 Walter Kuchler Sliding device, especially alpine ski
AT391088B (en) * 1988-05-26 1990-08-10 Head Sportgeraete Gmbh SKI WITH DAMPING LAYERS
DE8905419U1 (en) * 1989-04-28 1990-04-19 Blizzard Ges.M.B.H., Mittersill, Salzburg, At

Also Published As

Publication number Publication date
DE8911516U1 (en) 1990-10-25
EP0419779A1 (en) 1991-04-03
ATE95074T1 (en) 1993-10-15
DE59002913D1 (en) 1993-11-04
JPH03133472A (en) 1991-06-06
JPH0796046B2 (en) 1995-10-18

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