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EP1169098A1 - Alpine ski - Google Patents

Alpine ski

Info

Publication number
EP1169098A1
EP1169098A1 EP00929296A EP00929296A EP1169098A1 EP 1169098 A1 EP1169098 A1 EP 1169098A1 EP 00929296 A EP00929296 A EP 00929296A EP 00929296 A EP00929296 A EP 00929296A EP 1169098 A1 EP1169098 A1 EP 1169098A1
Authority
EP
European Patent Office
Prior art keywords
ski
belt element
alpine skiing
skiing according
upper belt
Prior art date
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.)
Granted
Application number
EP00929296A
Other languages
German (de)
French (fr)
Other versions
EP1169098B1 (en
Inventor
Uwe Emig
Reinhold Geilsdörfer
Markus Gramlich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMIG, UWE
GEILSDOERFER, REINHOLD
GRAMLICH, MARKUS
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1169098A1 publication Critical patent/EP1169098A1/en
Application granted granted Critical
Publication of EP1169098B1 publication Critical patent/EP1169098B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/075—Vibration dampers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials

Definitions

  • the invention relates to an alpine ski with a body composed of several elements, which has a tread on its underside and an area for fastening a binding on its upper side and which contains at least one upper belt element which is predominantly subjected to pressure and at least one lower belt element which is subjected to tension.
  • the upper and lower girdles are each formed from at least two layers of different material and are connected to one another via a shear-elastic core.
  • the layers in the upper and lower flange are arranged asymmetrically with respect to the longitudinal median plane of the ski in their sequence and in their thickness, and the thickness of layers with a large coefficient of linear expansion is in Upper chord larger than in the lower chord and the insert thickness of layers with a lower coefficient of linear expansion is smaller in the upper chord than in the lower chord.
  • the surface pressure in this known ski is considerably greater in the area of the center of the ski than in the area of the two ski ends.
  • the invention has for its object to provide an alpine ski of the type mentioned, which enables a more uniform surface pressure distribution over the tread of the ski.
  • the upper belt element in the central region of the ski has the shape of a flat, upwardly curved arch that extends in the longitudinal direction of the ski and spans the lower belt element and that the arch of the upper belt element is dependent on the binding outgoing load is deflectable in the direction of the lower chord element and that the upper chord element is supported on the end regions of the ski in such a way that a displacement of the ends of the upper chord element resulting from the bending of the arch increases the proportion of the end regions of the ski which are carried.
  • the alpine ski according to the invention enables a uniform pressure distribution over the entire length of the tread of the ski, which is less dependent on the respective load, and dynamic balancing of bumps.
  • the deflection of the curved upper chord element can be achieved by forming a cavity inside the ski below the arch, whereby the maximum deflection can be limited by dimensioning the height of the cavity.
  • a core made of elastic and / or elastically compressible material can be arranged between the arch of the upper chord element and the lower chord element underneath according to a further proposal of the invention.
  • the deflection and the vibration behavior of the upper belt element can be influenced by the resistance to deformation of the elastic or elastically compressible material.
  • the upper belt element can be supported in the longitudinal direction on the lower belt element to influence the vibration behavior via friction members and / or damping members made of elastomeric material.
  • the upper chord element preferably has means for fastening the binding components in the binding area.
  • the upper belt element in the fastening region of the binding has a plate which delimits the ski top or is embedded therein, to which the binding components can be fastened.
  • the alpine ski according to the invention can have an upper belt element and a lower belt element. However, it can also be advantageous to arrange a plurality of upper flange elements and / or lower flange elements next to one another in the ski body.
  • the lower chord element consists of a thin-walled strip of sheet metal, fiber material or fabric with high tensile strength.
  • the upper belt element can preferably be formed from one or more rods or tubes or also plate-shaped elements made of a pressure-resistant material, for example metal, fiber-reinforced plastic, wood or the like exist and which have sufficient kink resistance due to their shape and, if necessary, embedding in the ski body.
  • the upper flange element and the lower flange element preferably extend over the entire length of the tread of the ski.
  • the upper belt element can be arranged over the entire length above the lower belt element.
  • an advantageous design can also consist in the fact that the upper belt element crosses the lower belt element in one of the two end regions of the ski and then runs below the lower belt element.
  • the upper belt element crosses the lower belt element twice in an end region of the ski, so that the upper belt element runs in the middle of the ski and in the outer end region above and in between below the lower belt element.
  • the lower flange element or the upper flange element can each have a recess at the crossing points through which the other element is passed.
  • the upper chord element and the lower chord element are preferably firmly connected to one another only at their ends. In between, the elements are stored in the material of the ski body surrounding them. Sections of the elements can also be exposed, i.e. be visible and accessible from the outside of the ski body. According to the invention, the upper belt element is guided in the ski body in such a way that it can carry out a, albeit small, relative movement in relation to the ski body in the longitudinal direction.
  • the material of the ski body surrounding the elements is preferably a low-density filler, for example a foamed plastic, a fiber material or a so-called spacer fabric.
  • the ski body can also have a box of mechanical resistance, in which the elements surrounded by filler are arranged.
  • FIG. 1 shows a schematic representation of a first embodiment of an alpine ski according to the invention, seen from the side
  • FIG. 2 shows a schematic illustration of the alpine ski according to FIG. 1, seen from above
  • FIG. 3 shows a perspective illustration of a second embodiment of the upper chord and lower chord elements
  • FIG. 4 shows a variant of the end region of the lower chord elements according to FIG. 3,
  • FIG. 5 shows a perspective illustration of an embodiment of the connection between the ends of the upper chord and lower chord element of FIG.
  • FIG. 6 is an illustration of the functional principle of the invention
  • the alpine ski 1 shown in FIGS. 1 and 2 consists of a body 2, the underside of which forms a running surface 3.
  • An upper belt element 4 and a lower belt element 5 are arranged one above the other in the body 2.
  • the upper belt element 4 consists of an elongated strip of rectangular cross section, the width of the cross section increasing analogously to the width of the body 2 from the center of the ski to the ends of the ski.
  • the strip can consist of metal, plastic, a fiber composite material or of several layers of wood glued together.
  • the thickness of the strip and the material chosen for its production are matched to one another in such a way that compressive forces occurring in the longitudinal direction of the ski can be absorbed.
  • the middle section of the upper belt element 4 forms an arch 6 which extends in the longitudinal direction of the ski and which is curved upwards and which forms a fastening region 8 for the ski binding located in the upper side 7 of the body 2 with its central part.
  • the arch 6, which is arched upward, is adjoined on both sides by two smaller arched archways 9 which merge towards the front and rear ski ends into an end piece 10 which extends in the longitudinal direction of the ski.
  • the lower chord element 5 runs in the chord direction under the arch 6, is at the transition points between the arch 6 and the arch 9 through openings in the upper chord element 4 on its upper side and at the transition points between the bend 9 and the end pieces 10, in turn, through openings in the upper belt element 4 on the underside of the upper belt element 4.
  • the ends of the lower flange element 5 are firmly connected to the ends of the upper flange element 4 by fastening elements 13.
  • the lower belt element 5 consists of a strand of tensile material, for example of a strip of metal, a wire rope or a fiber composite material.
  • a filler 11 made of elastic and / or elastically compressible material is arranged between the latter and the lower chord element 5.
  • the filler 1 1 can be constructed from several layers of material of different elasticity or compressibility in order to achieve a non-linear increase in the resistance to deformation.
  • Filling bodies 12 are provided between the bend 9 and the lower chord element 5, which maintain a defined distance between the bend 9 and the element 5 and can be designed as friction or damping members.
  • the filling bodies 12 can be made of an elastomer and can be transmitted by means of shear forces, e.g. be connected by gluing to the elements 4, 5.
  • the body 2 surrounds the elements 4, 5 with a light filler, for example a foamed plastic or a fiber composite material, and the surface of the body 2 is reinforced in the usual way by hard layers of plastic and / or metal.
  • a light filler for example a foamed plastic or a fiber composite material
  • the structure of the alpine ski 1 described results in a load-dependent change in the stiffness of the ski in such a way that a more uniform pressure distribution over the entire length of the tread 3 is achieved in comparison with conventional ski designs. Furthermore, bumps can be better compensated, since a change in shape of one end region of the ski is transferred to the other end region of the ski in the opposite sense, with a permanent pressure-tension compensation being provided.
  • FIG. 3 shows another embodiment of an upper belt element 14 and a lower belt element 15, which can be used in the alpine ski 1 instead of the elements 4, 5.
  • the upper belt element 14 consists of two pressure rods 16 arranged next to one another, which are integrated in a bent plate 17 in the region of the binding attachment.
  • the lower chord element 1 5 is through a sheet metal strip 1 8 is formed, which at the points where the pressure bars 16 cross the lower chord element 15 has an opening 1 9 through which the pressure bars 1 6 are passed.
  • FIG. 4 shows a modification of the exemplary embodiment according to FIG. 3, in which the upper belt element 1 4 does not cross the lower belt element 15, but is arranged over its entire length above the lower belt element 15.
  • the compression rods 1 6 are held on both sides of the curved middle section of the upper belt element 1 4 by means of clips 20 on the top of the sheet metal strip 1 8 and run from there to their respective fastening end along the top of the sheet metal strip.
  • FIG. 5 shows a possibility for fastening the ends of the pressure bars 16 to the ends of the sheet metal strip 18 in the exemplary embodiments shown in FIGS. 3 and 4.
  • the end of the sheet metal strip 1 8 is bent twice at right angles, whereby a hook 21 is formed which receives a cuboid-shaped intermediate piece 22.
  • the intermediate piece 22 has two parallel blind bores 23 into which the ends of the pressure rods 16 can be inserted.
  • the intermediate piece 22 can be supported on the hook 21 directly or via an elastic damping element.
  • FIG. 6 illustrates the mode of operation of the alpine ski 1 according to the invention.
  • the solid lines show the Alpinski 1 at lower loads. If the skier increases the load on the upper belt element 4 by the force F by shifting the weight, the upper belt element 4 bends, as a result of which its curvature is reduced and its ends move slightly apart in the longitudinal direction. This change in shape of the upper belt element 4 is transferred to the end regions 1 .1 of the ski 1, which are held by the lower belt element 5 and thereby endeavor to deform in the sense of the lines indicated by dashed lines. The load portion absorbed by the end regions 1 .1 of the ski 1 increases accordingly, which results in a more uniform load distribution over the entire length of the ski.

Landscapes

  • Laminated Bodies (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Road Paving Structures (AREA)

Abstract

In an alpine ski (1) comprising a body (2) which is composed of several elements and has on its underside a gliding surface (3) and on its upper side (7) a binding mounting area (8), and includes at least one upper chord element (4) subjected primarily to pressure loads and at least one lower chord element (5) subjected to tensile loads, the upper chord element (4) has in the middle region of the ski the shape of a flat, upwardly curved arc (6) extending in the longitudinal direction of the ski and spanning the lower chord element (5). The arc (6) of the upper chord element (4) is adapted to deflect in the direction of the lower chord element (5) in dependence upon the load exerted by the binding and is supported in the end regions of the ski in such a way that a displacement of the ends of the upper chord element (5) resulting from the deflection of the arc (6) increases the load carrying share of the end regions of the ski.

Description

Alpinski Alpine skiing
Die Erfindung betrifft einen Alpinski mit einem aus mehreren Elementen zusammengesetzten Körper, der auf seiner Unterseite eine Lauffläche und auf seiner Oberseite einen Bereich zur Befestigung einer Bindung aufweist und der wenigstens ein vorwiegend auf Druck beanspruchtes Obergurtelement und wenigstens ein auf Zug beanspruchtes Untergurtelement enthält.The invention relates to an alpine ski with a body composed of several elements, which has a tread on its underside and an area for fastening a binding on its upper side and which contains at least one upper belt element which is predominantly subjected to pressure and at least one lower belt element which is subjected to tension.
Bei einem aus der DE 31 01 977 A1 bekannten Alpinski der angegebenen Art sind der Ober- und der Untergurt aus je wenigstens zwei Schichten verschiedenen Materials gebildet und über einen scherelastischen Kern miteinander verbunden. Um die Vorspannung beziehungsweise die Flächendruckverteilung in Abhängigkeit von der Umgebungstemperatur den Erfordernissen entsprechend zu ändern, sind die Schichten im Ober- und Untergurt bezogen auf die Längsmittelebene des Skis in ihrer Aufeinanderfolge und in ihrer Einsatzdicke asymmetrisch angeordnet und die Einsatzdicke von Schichten mit großem Längenausdehnungskoeffizienten ist im Obergurt größer als im Untergurt und die Einsatzdicke von Schichten mit geringerem Längenausdehnungskoeffizienten ist im Obergurt kleiner als im Unter- gurt. Ungeachtet der temperaturbedingten Änderungen der Flächendruckverteilung ist bei diesem bekannten Ski der Flächendruck im Bereich der Skimitte erheblich größer als im Bereich der beiden Skienden.In an alpine ski of the specified type known from DE 31 01 977 A1, the upper and lower girdles are each formed from at least two layers of different material and are connected to one another via a shear-elastic core. In order to change the pre-tension or the surface pressure distribution depending on the ambient temperature according to the requirements, the layers in the upper and lower flange are arranged asymmetrically with respect to the longitudinal median plane of the ski in their sequence and in their thickness, and the thickness of layers with a large coefficient of linear expansion is in Upper chord larger than in the lower chord and the insert thickness of layers with a lower coefficient of linear expansion is smaller in the upper chord than in the lower chord. Regardless of the temperature-related changes in the surface pressure distribution, the surface pressure in this known ski is considerably greater in the area of the center of the ski than in the area of the two ski ends.
Der Erfindung liegt die Aufgabe zugrunde, einen Alpinski der eingangs genannten Art zu schaffen, der eine gleichmäßigere Flächendruckverteilung über die Lauffläche des Skis ermöglicht.The invention has for its object to provide an alpine ski of the type mentioned, which enables a more uniform surface pressure distribution over the tread of the ski.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Obergurtelement im mittleren Bereich des Skis die Form eines flachen, nach oben gewölbten Bogens hat, der sich in Längsrichtung des Skis erstreckt und das Untergurtelement überspannt und daß der Bogen des Obergurtelements in Abhängigkeit von der von der Bindung ausgehenden Belastung in Richtung auf das Untergurtelement durchbiegbar ist und daß das Obergurtelement an den Endbereichen des Skis derart abgestützt ist, daß eine aus der Durchbiegung des Bogens resultierende Verschiebung der Enden des Obergurtelements den Traganteil der Endbereiche des Skis erhöht. Der erfindungsgemäße Alpinski ermöglicht eine gleichmäßige und von der jeweiligen Belastung in geringerem Maße abhängige Druckverteilung über die gesamte Länge der Lauffläche des Skis und einen dynamischen Ausgleich von Bodenwellen. Hierdurch wird eine größtmögliche Auflagelänge der Skikanten erreicht und sowohl die Geradeauslaufstabilität als auch die Reaktion auf Steuerimpulse des Skifahrers erheblich verbessert. Von Vorteil ist weiterhin, daß von der Skipiste ausgehende Stoßbelastungen durch die Biegeelastizität des Obergurtelements wirksam gedämpft werden können.The object is achieved in that the upper belt element in the central region of the ski has the shape of a flat, upwardly curved arch that extends in the longitudinal direction of the ski and spans the lower belt element and that the arch of the upper belt element is dependent on the binding outgoing load is deflectable in the direction of the lower chord element and that the upper chord element is supported on the end regions of the ski in such a way that a displacement of the ends of the upper chord element resulting from the bending of the arch increases the proportion of the end regions of the ski which are carried. The alpine ski according to the invention enables a uniform pressure distribution over the entire length of the tread of the ski, which is less dependent on the respective load, and dynamic balancing of bumps. As a result, the greatest possible contact length of the ski edges is achieved and both the straight-line stability and the reaction to control impulses of the skier are considerably improved. Another advantage is that shock loads emanating from the ski slope can be effectively dampened by the elasticity of the upper belt element.
Die Durchbiegung des gebogenen Obergurtelements kann durch die Ausbildung eines Hohlraums im Inneren des Skis unterhalb des Bogens erreicht werden, wobei durch die Bemessung der Höhe des Hohlraums eine Begrenzung der maximalen Durchbiegung möglich ist. Anstelle eines Hohlraums kann zwischen dem Bogen des Obergurtelements und dem darunterliegenden Untergurtelement nach einem weiteren Vorschlag der Erfindung ein Kern aus elastischem und/oder elastisch kompressiblem Material angeordnet sein. Hierbei kann durch den Verformungswiderstand des elastischem bzw. elastisch kompressiblen Materials die Durchbiegung und das Schwingungsverhalten des Obergurtelements beeinflußt werden. Weiterhin kann das Obergurtelement zur Beeinflussung des Schwingungs- Verhaltens über Reibungsglieder und/oder Dämpfungsglieder aus elastomerem Material in Längsrichtung an dem Untergurtelement abgestützt sein.The deflection of the curved upper chord element can be achieved by forming a cavity inside the ski below the arch, whereby the maximum deflection can be limited by dimensioning the height of the cavity. Instead of a cavity, a core made of elastic and / or elastically compressible material can be arranged between the arch of the upper chord element and the lower chord element underneath according to a further proposal of the invention. The deflection and the vibration behavior of the upper belt element can be influenced by the resistance to deformation of the elastic or elastically compressible material. Furthermore, the upper belt element can be supported in the longitudinal direction on the lower belt element to influence the vibration behavior via friction members and / or damping members made of elastomeric material.
Zur Krafteinleitung weist das Obergurtelement im Bindungsbereich vorzugsweise Mittel zur Befestigung der Bindungsbauteile auf. Eine mögliche Ausgestaltung sieht vor, daß das Obergurtelement im Befestigungsbereich der Bindung eine die Skioberseite begrenzende oder in diese eingelassene Platte aufweist, an der die Bindungsbauteile befestigbar sind.For the introduction of force, the upper chord element preferably has means for fastening the binding components in the binding area. A possible embodiment provides that the upper belt element in the fastening region of the binding has a plate which delimits the ski top or is embedded therein, to which the binding components can be fastened.
Der erfindungsgemäße Alpinski kann jeweils ein Obergurtelement und ein Unter- gurtelement haben. Es kann aber auch vorteilhaft sein, mehrere Obergurtelemente und/oder Untergurtelemente nebeneinander in dem Skikörper anzuordnen. Eine vorteilhafte Ausgestaltung sieht vor, daß das Untergurtelement aus einem dünnwandigen Streifen aus Blech, Fasermaterial oder Gewebe hoher Zugfestigkeit besteht. Das Obergurtelement kann vorzugsweise aus einem oder mehreren Stäben oder Rohren oder auch plattenförmigen Elementen gebildet sein, die aus einem druckfesten Material, z.B. Metall, faserverstärktem Kunststoff, Holz oder dergleichen bestehen und die durch ihre Formgebung und gegebenenfalls Einbettung im Skikörper eine ausreichende Knicksicherheit haben.The alpine ski according to the invention can have an upper belt element and a lower belt element. However, it can also be advantageous to arrange a plurality of upper flange elements and / or lower flange elements next to one another in the ski body. An advantageous embodiment provides that the lower chord element consists of a thin-walled strip of sheet metal, fiber material or fabric with high tensile strength. The upper belt element can preferably be formed from one or more rods or tubes or also plate-shaped elements made of a pressure-resistant material, for example metal, fiber-reinforced plastic, wood or the like exist and which have sufficient kink resistance due to their shape and, if necessary, embedding in the ski body.
Das Obergurtelement und das Untergurtelement erstrecken sich vorzugsweise über die gesamte Länge der Lauffläche des Skis. Das Obergurtelement kann hierbei auf der gesamten Länge oberhalb des Untergurtelements angeordnet sein. Eine vorteilhafte Gestaltung kann erfindungsgemäß auch darin bestehen, daß das Obergurtelement in einem der beiden Endbereiche des Skis das Untergurtelement kreuzt und danach unterhalb des Untergurtelements verläuft. Weiterhin kann vorgesehen sein, daß das Obergurtelement in einem Endbereich des Skis das Untergurtelement zweimal kreuzt, so daß das Obergurtelement in der Skimitte und im äußeren Endbereich oberhalb und dazwischen unterhalb des Untergurtelements verläuft. Hierbei können das Untergurtelement oder das Obergurtelement an den Kreuzungsstellen jeweils eine Ausnehmung haben, durch die das andere Element hindurchgeführt ist.The upper flange element and the lower flange element preferably extend over the entire length of the tread of the ski. The upper belt element can be arranged over the entire length above the lower belt element. According to the invention, an advantageous design can also consist in the fact that the upper belt element crosses the lower belt element in one of the two end regions of the ski and then runs below the lower belt element. Furthermore, it can be provided that the upper belt element crosses the lower belt element twice in an end region of the ski, so that the upper belt element runs in the middle of the ski and in the outer end region above and in between below the lower belt element. In this case, the lower flange element or the upper flange element can each have a recess at the crossing points through which the other element is passed.
Vorzugsweise sind das Obergurtelement und das Untergurtelement nur an ihren Enden fest miteinander verbunden. Dazwischen sind die Elemente in dem sie umgebenden Material des Skikörpers gelagert. Abschnitte der Elemente können auch freiliegend, d.h. von außen sichtbar und zugänglich an dem Skikörper angeordnet sein. Das Obergurtelement ist erfindungsgemäß im Skikörper derart geführt, daß es in Längsrichtung eine wenn auch kleine Relativbewegung gegenüber dem Skikörper ausführen kann.The upper chord element and the lower chord element are preferably firmly connected to one another only at their ends. In between, the elements are stored in the material of the ski body surrounding them. Sections of the elements can also be exposed, i.e. be visible and accessible from the outside of the ski body. According to the invention, the upper belt element is guided in the ski body in such a way that it can carry out a, albeit small, relative movement in relation to the ski body in the longitudinal direction.
Das die Elemente umgebende Material des Skikörpers ist vorzugsweise ein Füllstoff geringer Dichte, beispielsweise ein geschäumter Kunststoff, ein Fasermaterial oder ein sogenanntes Abstandsgewebe. Der Skikörper kann erfindungsgemäß auch einen Kasten mechanischer Widerstandsfähigkeit aufweisen, in dem die von Füllstoff umgebenen Elemente angeordnet sind.The material of the ski body surrounding the elements is preferably a low-density filler, for example a foamed plastic, a fiber material or a so-called spacer fabric. According to the invention, the ski body can also have a box of mechanical resistance, in which the elements surrounded by filler are arranged.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert, die in der Zeichnung dargestellt sind. Es zeigenThe invention is explained in more detail below on the basis of exemplary embodiments which are illustrated in the drawing. Show it
Figur 1 eine schematische Darstellung einer ersten Ausführungsform eines erfindungsgemäßen Alpinskis, von der Seite gesehen, Figur 2 eine schematische Darstellung des Alpinskis gemäß Figur 1 , von oben gesehen,FIG. 1 shows a schematic representation of a first embodiment of an alpine ski according to the invention, seen from the side, FIG. 2 shows a schematic illustration of the alpine ski according to FIG. 1, seen from above,
Figur 3 eine perspektivische Darstellung einer zweiten Ausführungsform der Obergurt- und Untergurtelemente,FIG. 3 shows a perspective illustration of a second embodiment of the upper chord and lower chord elements,
Figur 4 eine Variante des Endbereichs der Untergurtelemente gemäß Figur 3,FIG. 4 shows a variant of the end region of the lower chord elements according to FIG. 3,
Figur 5 eine perspektivische Darstellung einer Ausführungsform der Verbin- düng zwischen den Enden von Obergurt- und Untergurtelement derFIG. 5 shows a perspective illustration of an embodiment of the connection between the ends of the upper chord and lower chord element of FIG
Ausführungsformen gemäß den Figuren 3 und 4 und,Embodiments according to Figures 3 and 4 and,
Figur 6 eine Darstellung des Funktionsprinzips des erfindungsgemäßenFigure 6 is an illustration of the functional principle of the invention
Alpinskis.Alpine skis.
Der in den Figuren 1 und 2 gezeigte Alpinski 1 besteht aus einem Körper 2, dessen Unterseite eine Lauffläche 3 bildet. In dem Körper 2 sind übereinander ein Obergurtelement 4 und ein Untergurtelement 5 angeordnet.The alpine ski 1 shown in FIGS. 1 and 2 consists of a body 2, the underside of which forms a running surface 3. An upper belt element 4 and a lower belt element 5 are arranged one above the other in the body 2.
Das Obergurtelement 4 besteht aus einem langgestreckten Streifen von rechteckigem Querschnitt, wobei die Breite des Querschnitts analog zur Breite des Körpers 2 von der Skimitte zu den Skienden hin zunimmt. Der Streifen kann aus Metall, Kunststoff, einem Faserverbundmaterial oder aus mehreren miteinander verleimten Holzschichten bestehen. Die Dicke des Streifens und das zu seiner Herstellung gewählte Material sind so aufeinander abgestimmt, daß in Skilängsrichtung auftretende Druckkräfte aufgenommen werden können. Der Mittelabschnitt des Obergurtelements 4 bildet einen sich in Skilängsrichtung erstreckenden, nach oben gewölbten Bogen 6, der mit seinem mittleren Teil einen in der Oberseite 7 des Körpers 2 liegenden Befestigungsbereich 8 für die Skibindung bildet. An den nach oben gewölbten Bogen 6 schließen sich auf beiden Seiten zwei kleinere, nach unten gewölbte Bogen 9 an, die zum vorderen und hinteren Skiende hin jeweils in ein sich in Skilängsrichtung erstreckendes Endstück 10 übergehen.The upper belt element 4 consists of an elongated strip of rectangular cross section, the width of the cross section increasing analogously to the width of the body 2 from the center of the ski to the ends of the ski. The strip can consist of metal, plastic, a fiber composite material or of several layers of wood glued together. The thickness of the strip and the material chosen for its production are matched to one another in such a way that compressive forces occurring in the longitudinal direction of the ski can be absorbed. The middle section of the upper belt element 4 forms an arch 6 which extends in the longitudinal direction of the ski and which is curved upwards and which forms a fastening region 8 for the ski binding located in the upper side 7 of the body 2 with its central part. The arch 6, which is arched upward, is adjoined on both sides by two smaller arched archways 9 which merge towards the front and rear ski ends into an end piece 10 which extends in the longitudinal direction of the ski.
Das Untergurtelement 5 verläuft in Sehnenrichtung unter dem Bogen 6 hindurch, ist an den Übergangsstellen zwischen dem Bogen 6 und dem Bogen 9 durch Öffnungen im Obergurtelement 4 auf dessen Oberseite und an den Übergangsstellen zwischen den Bogen 9 und den Endstücken 10 wiederum durch Öffnungen im Obergurtelement 4 auf die Unterseite des Obergurtelements 4 geführt. Die Enden des Untergurtelements 5 sind mit den Enden des Obergurtelements 4 durch Befestigungselemente 13 fest verbunden. Das Untergurtelement 5 besteht aus einem Strang aus zugfestem Material, z.B. aus einem Streifen aus Metall, einem Drahtseil oder aus einem Faserverbundmaterial.The lower chord element 5 runs in the chord direction under the arch 6, is at the transition points between the arch 6 and the arch 9 through openings in the upper chord element 4 on its upper side and at the transition points between the bend 9 and the end pieces 10, in turn, through openings in the upper belt element 4 on the underside of the upper belt element 4. The ends of the lower flange element 5 are firmly connected to the ends of the upper flange element 4 by fastening elements 13. The lower belt element 5 consists of a strand of tensile material, for example of a strip of metal, a wire rope or a fiber composite material.
Unterhalb des Bogens 6 ist zwischen diesem und dem Untergurtelement 5 ein Füllkörper 1 1 aus elastischem und/oder elastisch-kompressiblem Material angeordnet. Der Füllkörper 1 1 kann hierbei aus mehreren Materialschichten unterschiedlicher Elastizität oder Kompressibilität aufgebaut sein, um einen nicht linearen Anstieg des Verformungswiderstands zu erreichen. Zwischen dem Bogen 9 und dem Untergurtelement 5 sind Füllkörper 12 vorgesehen, die einen definierten Abstand zwischen dem Bogen 9 und dem Element 5 aufrechterhalten und als Reib- oder Dämpfungsglieder ausgebildet sein können. Beispielsweise können die Füllkörper 12 aus einem Elastomer bestehen und durch Schubkräfte übertragende Mittel, z.B. durch Kleben mit den Elementen 4, 5 verbunden sein.Below the arch 6, a filler 11 made of elastic and / or elastically compressible material is arranged between the latter and the lower chord element 5. The filler 1 1 can be constructed from several layers of material of different elasticity or compressibility in order to achieve a non-linear increase in the resistance to deformation. Filling bodies 12 are provided between the bend 9 and the lower chord element 5, which maintain a defined distance between the bend 9 and the element 5 and can be designed as friction or damping members. For example, the filling bodies 12 can be made of an elastomer and can be transmitted by means of shear forces, e.g. be connected by gluing to the elements 4, 5.
Der Körper 2 umgibt die Elemente 4, 5 mit einem leichten Füllstoff, beispielsweise einem geschäumten Kunststoff oder einem Faserverbundmaterial, und die Oberfläche des Körpers 2 ist in üblicher Weise durch harte Schichten aus Kunststoff und/oder Metall verstärkt.The body 2 surrounds the elements 4, 5 with a light filler, for example a foamed plastic or a fiber composite material, and the surface of the body 2 is reinforced in the usual way by hard layers of plastic and / or metal.
Durch den beschriebenen Aufbau des Alpinskis 1 ergibt sich eine belastungsab- hängige Änderung der Formsteifigkeit des Skis in der Weise, daß eine im Vergleich zu herkömmlichen Skiausführungen gleichmäßigere Druckverteilung über die gesamte Länge der Lauffläche 3 erreicht wird. Weiterhin können Bodenwellen besser ausgeglichen werden, da eine Formänderung eines Endbereichs des Skis auf den anderen Endbereich des Skis im entgegengesetzten Sinne übertragen wird, wobei ein permanenter Druck-Zug-Ausgleich gegeben ist.The structure of the alpine ski 1 described results in a load-dependent change in the stiffness of the ski in such a way that a more uniform pressure distribution over the entire length of the tread 3 is achieved in comparison with conventional ski designs. Furthermore, bumps can be better compensated, since a change in shape of one end region of the ski is transferred to the other end region of the ski in the opposite sense, with a permanent pressure-tension compensation being provided.
Figur 3 zeigt eine andere Ausgestaltung eines Obergurtelements 14 und eines Untergurtelements 15, die anstelle der Elemente 4, 5 in dem Alpinski 1 eingesetzt werden können. Das Obergurtelement 14 besteht aus zwei nebeneinander ange- ordneten Druckstäben 1 6, die im Bindungsbefestigungsbereich in eine gebogene Platte 17 integriert sind. Das Untergurtelement 1 5 wird durch einen Blechstreifen 1 8 gebildet, der an den Stellen, wo die Druckstäbe 16 das Untergurtelement 15 kreuzen, eine Öffnung 1 9 hat, durch die die Druckstäbe 1 6 hindurchgeführt sind.FIG. 3 shows another embodiment of an upper belt element 14 and a lower belt element 15, which can be used in the alpine ski 1 instead of the elements 4, 5. The upper belt element 14 consists of two pressure rods 16 arranged next to one another, which are integrated in a bent plate 17 in the region of the binding attachment. The lower chord element 1 5 is through a sheet metal strip 1 8 is formed, which at the points where the pressure bars 16 cross the lower chord element 15 has an opening 1 9 through which the pressure bars 1 6 are passed.
Figur 4 zeigt eine Abwandlung des Ausführungsbeispiels gemäß Figur 3, bei der das Obergurtelement 1 4 das Untergurtelement 1 5 nicht kreuzt, sondern auf seiner ganzen Länge oberhalb des Untergurtelements 1 5 angeordnet ist. Die Druckstäbe 1 6 sind hierbei beiderseits des gebogenen Mittelabschnitts des Obergurtelements 1 4 mittels Klammern 20 auf der Oberseite des Blechstreifens 1 8 gehalten und verlaufen von dort bis zu ihrem jeweiligen Befestigungsende auf der Oberseite des Blechstreifens entlang.FIG. 4 shows a modification of the exemplary embodiment according to FIG. 3, in which the upper belt element 1 4 does not cross the lower belt element 15, but is arranged over its entire length above the lower belt element 15. The compression rods 1 6 are held on both sides of the curved middle section of the upper belt element 1 4 by means of clips 20 on the top of the sheet metal strip 1 8 and run from there to their respective fastening end along the top of the sheet metal strip.
Figur 5 zeigt eine Möglichkeit zur Befestigung der Enden der Druckstäbe 16 an den Enden des Blechstreifens 1 8 bei den in den Figuren 3 und 4 gezeigten Ausführungsbeispielen. Das Ende des Blechstreifens 1 8 ist hierbei zweimal rechtwinklig abgekantet, wodurch ein Haken 21 gebildet ist, der ein quaderförmiges Zwischenstück 22 aufnimmt. Das Zwischenstück 22 weist zwei parallele Sackbohrungen 23 auf, in die die Enden der Druckstäbe 16 einsteckbar sind. Das Zwischenstück 22 kann direkt oder über ein elastisches Dämpfungselement an dem Haken 21 abgestützt sein.FIG. 5 shows a possibility for fastening the ends of the pressure bars 16 to the ends of the sheet metal strip 18 in the exemplary embodiments shown in FIGS. 3 and 4. The end of the sheet metal strip 1 8 is bent twice at right angles, whereby a hook 21 is formed which receives a cuboid-shaped intermediate piece 22. The intermediate piece 22 has two parallel blind bores 23 into which the ends of the pressure rods 16 can be inserted. The intermediate piece 22 can be supported on the hook 21 directly or via an elastic damping element.
Figur 6 veranschaulicht die Wirkungsweise des erfindungsgemäßen Alpinskis 1 . Die durchgezogenen Linien zeigen den Alpinski 1 bei geringerer Belastung. Erhöht der Skifahrer durch Gewichtsverlagerung die Belastung des Obergurtelements 4 durch die Kraft F, so biegt sich das Obergurtelement 4 durch, wodurch sich seine Krümmung verringert und seine Enden sich in Längsrichtung geringfügig auseinander bewegen. Diese Formänderung des Obergurtelements 4 überträgt sich auf die Endbereiche 1 .1 des Skis 1 , die von dem Untergurtelement 5 festgehalten werden und dadurch bestrebt sind, sich im Sinne der gestrichelt angedeuteten Linien zu verformen. Entsprechend nimmt der von den Endbereichen 1 .1 des Skis 1 aufge- nommene Lastanteil zu, was eine gleichmäßigere Lastverteilung über die gesamte Länge des Skis zur Folge hat. FIG. 6 illustrates the mode of operation of the alpine ski 1 according to the invention. The solid lines show the Alpinski 1 at lower loads. If the skier increases the load on the upper belt element 4 by the force F by shifting the weight, the upper belt element 4 bends, as a result of which its curvature is reduced and its ends move slightly apart in the longitudinal direction. This change in shape of the upper belt element 4 is transferred to the end regions 1 .1 of the ski 1, which are held by the lower belt element 5 and thereby endeavor to deform in the sense of the lines indicated by dashed lines. The load portion absorbed by the end regions 1 .1 of the ski 1 increases accordingly, which results in a more uniform load distribution over the entire length of the ski.

Claims

Patentansprüche claims
1 . Alpinski mit einem aus mehreren Elementen zusammengesetzten Körper, der auf seiner Unterseite eine Lauffläche und auf seiner Oberseite einen Bereich zur Befestigung einer Bindung aufweist und der wenigstens ein vorwiegend auf Druck beanspruchtes Obergurtelement und wenigstens ein auf Zug beanspruchtes Untergurtelement enthält, dadurch gekennzeichnet, daß das Obergurtelement (4) im mittleren Bereich des Skis die Form eines flachen, nach oben gewölbten Bogens (6) hat, der sich in Längsrichtung des Skis erstreckt und das Untergurtelement (5) überspannt und daß der Bogen (6) des Obergurtelements (4) in Abhängigkeit von der von der Bindung ausgehenden Belastung in Richtung auf das Untergurtelement (5) durchbiegbar ist und daß das Obergurtelement (4) an den Endbereichen des Skis derart abgestützt ist, daß eine aus der Durchbiegung des Bogens (6) resultierende Verschiebung der Enden des Obergurtelements (5) den Traganteil der Endbereiche des Skis erhöht.1 . Alpine skiing with a body composed of several elements, which has a tread on its underside and an area for fastening a binding on its upper side and which contains at least one upper belt element which is predominantly subjected to pressure and at least one lower belt element which is subjected to tension, characterized in that the upper belt element (4) in the central region of the ski has the shape of a flat, upwardly curved arch (6) which extends in the longitudinal direction of the ski and spans the lower flange element (5) and that the arch (6) of the upper flange element (4) is dependent can be deflected by the load emanating from the binding in the direction of the lower chord element (5) and that the upper chord element (4) is supported at the end regions of the ski in such a way that a displacement of the ends of the upper chord element (6) resulting from the bending of the arch (6) 5) Increases the load of the end areas of the ski.
2. Alpinski nach Anspruch 1 , gekennzeichnet durch, einen unterhalb des Bogens (6) im Inneren des Skis ausgebildeten Hohlraum.2. Alpine skiing according to claim 1, characterized by a cavity formed below the arch (6) inside the ski.
3. Alpinski nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß zwischen dem Bogen (6) des Obergurtelements (4) und dem darunterliegen- den Untergurtelement (5) ein Füllkörper (1 1 ) aus elastischem und/oder elastisch kompressiblem Material angeordnet ist.3. Alpine skiing according to one of claims 1 or 2, characterized in that between the arch (6) of the upper belt element (4) and the underlying lower belt element (5) a filler (1 1) made of elastic and / or elastically compressible material is.
4. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Obergurtelement (4) über Reibungsglieder und/oder Dämpfungs- glieder, insbesondere aus elastomerem Material in Längsrichtung an dem4. Alpine skiing according to one of the preceding claims, characterized in that the upper belt element (4) via friction members and / or damping members, in particular made of elastomeric material in the longitudinal direction on the
Untergurtelement (5) abgestützt ist.Lower belt element (5) is supported.
5. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Obergurtelement (4) im Bindungsbereich (8) Mittel zur Befesti- gung von Bindungsbauteilen aufweist. 5. Alpine skiing according to one of the preceding claims, characterized in that the upper belt element (4) in the binding region (8) has means for fastening binding components.
6. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Obergurtelement (4) im Befestigungsbereich (8) der Bindung eine die Skioberseite (7) begrenzende oder in diese eingelassene Platte (17) aufweist, an der die Bindungsbauteile befestigbar sind.6. Alpine skiing according to one of the preceding claims, characterized in that the upper belt element (4) in the fastening area (8) of the binding has a top (7) limiting or embedded in this plate (17) to which the binding components can be fastened.
7. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er ein einziges Obergurtelement (4) und ein einziges Untergurtelement (5) hat.7. Alpine skiing according to one of the preceding claims, characterized in that it has a single upper flange element (4) and a single lower flange element (5).
8. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mehrere Obergurtelemente (4) und/oder Untergurtelemente (5) in dem Skikörper (2) nebeneinander angeordnet sind.8. Alpine skiing according to one of the preceding claims, characterized in that a plurality of upper flange elements (4) and / or lower flange elements (5) are arranged side by side in the ski body (2).
9. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeich- net, daß das Untergurtelement (5) aus einem dünnwandigen Streifen aus9. Alpine skiing according to one of the preceding claims, characterized in that the lower belt element (5) consists of a thin-walled strip
Blech, Fasermaterial oder Gewebe hoher Zugfestigkeit besteht.Sheet, fiber material or fabric with high tensile strength.
10. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Obergurtelement (4) aus einem oder mehreren Stäben oder Roh- ren oder auch aus plattenförmigen Elementen gebildet ist, die aus einem druckfesten Material, z.B. Metall, faserverstärktem Kunststoff, Holz oder dergleichen bestehen.10. Alpine skiing according to one of the preceding claims, characterized in that the upper belt element (4) is formed from one or more rods or tubes or also from plate-shaped elements made of a pressure-resistant material, e.g. Metal, fiber-reinforced plastic, wood or the like are made.
1 1 . Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeich- net, daß das Obergurtelement (4) und das Untergurtelement (5) sich über die gesamte Länge der Lauffläche (3) des Skis erstrecken.1 1. Alpine skiing according to one of the preceding claims, characterized in that the upper flange element (4) and the lower flange element (5) extend over the entire length of the tread (3) of the ski.
12. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Obergurtelement (4) auf seiner gesamten Länge über dem Untergurtelement (5) angeordnet ist.12. Alpine skiing according to one of the preceding claims, characterized in that the upper belt element (4) is arranged over its entire length over the lower belt element (5).
13. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Obergurtelement (4) in einem der beiden Endbereiche des Skis das Untergurtelement (5) kreuzt und danach unterhalb des Untergurtele- ments (5) verläuft. 13. Alpine skiing according to one of the preceding claims, characterized in that the upper belt element (4) crosses the lower belt element (5) in one of the two end regions of the ski and then runs below the lower belt element (5).
14. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Obergurtelement (4) in einem Endbereich des Skis das Untergurtelement (5) zweimal derart kreuzt, daß das Obergurtelement (4) in der Skimitte und im äußeren Endbereich oberhalb und dazwischen unterhalb des Untergurtelements (5) verläuft.14. Alpine skiing according to one of the preceding claims, characterized in that the upper belt element (4) in an end region of the ski crosses the lower belt element (5) twice in such a way that the upper belt element (4) in the middle of the ski and in the outer end region above and in between below the Lower belt element (5) runs.
1 5. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Untergurtelement (5) oder das Obergurtelement (4) an den Kreuzungsstellen jeweils eine Ausnehmung haben, durch die das jeweils andere Element (4 bzw. 5) hindurchgeführt ist.1 5. Alpine skiing according to one of the preceding claims, characterized in that the lower flange element (5) or the upper flange element (4) each have a recess at the crossing points through which the other element (4 or 5) is passed.
16. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Obergurtelement (4) und das Untergurtelement (5) nur an ihren Enden fest miteinander verbunden sind.16. Alpine skiing according to one of the preceding claims, characterized in that the upper flange element (4) and the lower flange element (5) are firmly connected to one another only at their ends.
1 7. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Obergurtelement (4) an dem Skikörper (2) gelagert und derart geführt ist, daß es in Längsrichtung gegenüber dem Skikörper (2) eine Relativbewegung ausführen kann.1 7. Alpine skiing according to one of the preceding claims, characterized in that the upper belt element (4) on the ski body (2) is mounted and guided such that it can perform a relative movement in the longitudinal direction with respect to the ski body (2).
1 8. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das die Elemente (4, 5) umgebende Material des Skikörpers (2) ein Füllstoff geringer Dichte, beispielsweise ein geschäumter Kunststoff, ein Fasermaterial oder ein sogenanntes Abstandsgewebe ist.1 8. Alpine skiing according to one of the preceding claims, characterized in that the elements (4, 5) surrounding material of the ski body (2) is a low density filler, for example a foamed plastic, a fiber material or a so-called spacer fabric.
1 9. Alpinski nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Skikörper (2) auch einen Kasten mechanischer Widerstandsfähigkeit aufweist, in dem die von Füllstoff umgebenen Elemente (4, 5) angeordnet sind. 1 9. Alpine skiing according to one of the preceding claims, characterized in that the ski body (2) also has a box of mechanical resistance, in which the elements surrounded by filler (4, 5) are arranged.
EP00929296A 1999-04-21 2000-04-15 Alpine ski Expired - Lifetime EP1169098B1 (en)

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DE19917992A DE19917992A1 (en) 1999-04-21 1999-04-21 Alpine skiing
PCT/DE2000/001188 WO2000062877A1 (en) 1999-04-21 2000-04-15 Alpine ski

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EP1169098B1 (en) 2005-03-30
CA2366904C (en) 2007-01-30
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CA2366904A1 (en) 2000-10-26
ATE291947T1 (en) 2005-04-15

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