EP2420306B1 - Coupling element for a ski shoe and ski shoe - Google Patents

Coupling element for a ski shoe and ski shoe Download PDF

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Publication number
EP2420306B1
EP2420306B1 EP11177957.5A EP11177957A EP2420306B1 EP 2420306 B1 EP2420306 B1 EP 2420306B1 EP 11177957 A EP11177957 A EP 11177957A EP 2420306 B1 EP2420306 B1 EP 2420306B1
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EP
European Patent Office
Prior art keywords
coupling element
boot
ski boot
ski
contact portions
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Application number
EP11177957.5A
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German (de)
French (fr)
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EP2420306A1 (en
Inventor
Edwin Lehner
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Salewa Sport AG
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Salewa Sport AG
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Publication of EP2420306A1 publication Critical patent/EP2420306A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0496—Ski or like boots boots for touring or hiking skis
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0411—Ski or like boots for cross-country
    • A43B5/0413—Adaptations for soles or accessories associated with soles for cross-country bindings
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0415—Accessories
    • A43B5/0417—Accessories for soles or associated with soles of ski boots; for ski bindings
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0415—Accessories
    • A43B5/0417—Accessories for soles or associated with soles of ski boots; for ski bindings
    • A43B5/0423—Accessories for soles or associated with soles of ski boots; for ski bindings located on the sides of the sole
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0492—Telemark boots
    • A43B5/0494—Adaptations for soles or accessories associated with soles for telemark bindings
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/086—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings using parts which are fixed on the shoe of the user and are releasable from the ski binding

Definitions

  • the present invention relates to a ski boot according to the preamble of claim 1 and a coupling element according to the preamble of claim 8.
  • One common type of ski binding uses for coupling between an automatic heel and a heel portion of a ski boot two parallel pins projecting forwardly from the heel unit which engage a coupling element attached to the ski boot to fix the ski boot in the heel region to the ski
  • An example of a coupling system of this kind is from the EP 0 199 098 A2 known, which describes as a coupling element to be fastened to the heel region of a sole of a ski boot plate.
  • the sheet metal is fastened to the ski boot by means of two central screws which run along a vertical ski center plane.
  • the vertical shoe center plane is orthogonal to the sheet and divides the sheet into two mirror-symmetrical halves.
  • the lying on different sides of the shoe center plane side edges of the sheet each have a groove as abutting portions for the protruding from the heel machine pins.
  • the pins are through an elastic force biased into engagement with the grooves, so that they hold the ski boot securely in the downhill position on the ski binding and thus on the ski, which is exceeded in a fall trigger force, the elastic force of the pins and the ski boot out of engagement with the Pins releases to release the ski boot.
  • ski binding is designed as touring ski binding and also allows the adjustment of the downhill to a walking position, in which the automatic heel is adjusted so that it allows lifting the heel of the ski boot from the ski. It should be noted at this point, however, that the present invention is not limited to ski bindings of this type, but extends equally to other bindings for downhill skis, cross-country skis or snowboards or splitboards, if the binding works with a heel piece, the two more front projecting pins has.
  • ski binding or "ski boot” in the context of the present disclosure equally Snowboardequippment and Splitboardequippment to understand, so that a snowboard boot as ski boot in the sense of the present disclosure is understood and understood a snowboard binding as ski binding in the sense of the present disclosure becomes.
  • a ski boot having the features of the preamble of claim 1 is known from US 2007/204486 A1 known.
  • the FR 1 487 281 a ski boot comprising a shaft portion and a sole portion, wherein in a heel portion of the sole portion, a coupling member is attached to the sole portion, wherein the coupling element comprises four outer attachment points for attachment to the ski boot and wherein in a central portion of the coupling element is a stop for engagement with a Ski binding is provided.
  • the object of the invention is achieved by a ski boot according to claim 1 and a coupling element according to claim 8.
  • the stabilization and the improvement of the wear resistance of the coupling element is based not on the use of larger and more stable screw connections or the use of a stronger material for the coupling element but on a fundamentally changed shape of the coupling element and on the use of a with respect to the arrangement of the attachment points and in terms of Distribution and directions of the forces introduced into the ski boot novel attachment structure.
  • the laterally outwardly extending arm portions enable the provision of two additional attachment points, which are not in the central area in the vicinity of the shoe center plane but laterally outside and allow an advantageous distribution of force transmission over a larger area of the ski boot.
  • the outer attachment points according to the invention are arranged outside the abutment sections of the coupling element, then that the attachment structure thus created is no longer subject to the space limitations imposed by the spacing of the pins.
  • the arm portions lead out of this area, and utilize rear side portions of the heel portion of the ski boot for additional attachment of the coupling element.
  • the coupling element can be very stably attached to the ski boot, so that it remains safe even with long and demanding use of the ski boot and wear is reduced.
  • a loosening or even breaking out of the coupling element is reliably prevented even at very high trigger thresholds.
  • the coupling element has a central portion on which the central attachment point is arranged, the arm portions extending from the central portion in substantially opposite directions.
  • Such a coupling element has a simple shape and can be manufactured inexpensively and stably, for example from a suitable metal sheet.
  • the coupling element has a central portion, on which the central attachment point is arranged.
  • the abutment sections can be arranged on opposite lateral edge sections of the central section and can each have a groove for receiving a pin of the automatic heel unit. With such a groove, a form-fitting setpoint position for the installation of the pins in the downhill position is created by simple means, wherein the tripping characteristics of the coupling element can be influenced by appropriate dimensioning of the grooves.
  • the conventional coupling element eg a coupling element according to the EP 0 199 098 A2
  • My-torque a torque about a transverse axis orthogonal to the longitudinal axis of the ski and orthogonal to the vertical axis
  • the introduced into the coupling element forces thus act partially away from the shoe and partially down.
  • the attachment points and the shape of the coupling element are optimally adapted to these directions of force, in that the arm sections extend outwardly in a wing-like manner above the abutment sections. This configuration counteracts in particular the tilting of the coupling element observed in the load tests.
  • the outer attachment points are arranged in widened end portions of the arm portions, so that it is possible to provide sufficient material in the end portions for the formation of the attachment points, for example to arrange a mounting hole, while the thickness of the arm portions to save weight can be chosen smaller for the same overall strength of the coupling element.
  • the widened end portions are downwardly extended end portions, thereby providing the additional advantage that the position of the attachment points with respect to the vertical direction can be displaced closer to the abutment portions of the coupling element and the range for mounting the coupling element optimally present in the heel area of the ski boot can be exploited.
  • the coupling element has a substantially arcuate shape adapted to a heel region of a ski boot.
  • the coupling element is then optimally adapted to the contour of a ski boot in the heel area to be securely attached thereto.
  • the fastening means have a passage opening or a pin protruding toward the shoe.
  • the coupling element can the attachment point are fastened by means of a guided through the through hole screw on the shoe.
  • a pin projecting towards the shoe is provided, which sits in a press fit in a corresponding opening of the ski boot.
  • the outer fastening points of the coupling element are arranged laterally outside the contact sections of the coupling element.
  • the distance between the abutment surfaces of the pins is about 20 mm, so that the improvement of the attachment structure according to the invention is achieved when a distance between the outer attachment points is greater than about 20 mm.
  • a clear further increase in the stability of the attachment of the coupling element can be achieved if the distance between the outer attachment points is greater than about 40 mm, since then the leverage of the extended arm portions can be well used. The best stress tests were achieved with coupling elements in which a distance between the outer attachment points is greater than about 60 mm.
  • the coupling element may have at least one shoe protruding pin, which is inserted or insertable in the attachment of the coupling element on the ski boot in a hole in the heel region of the ski boot.
  • the protruding pin can assist in mounting the coupling element to the ski boot by temporarily holding the coupling element in the correct position on the ski boot. Further, the positive engagement between pin and associated hole can further improve the stability of the coupling element against tilting under load.
  • arm portions according to the invention can additional Attachment points are provided on the coupling element in order to increase the stability of the attachment of the coupling element, as already described above. To achieve this effect, it is not absolutely necessary that the coupling element in all attachment points with the same mechanical effort, and the same load capacity is attached.
  • the coupling element is held at the central attachment point by means of a screw connection and held at the two outer attachment points only by at least one protruding pin which is inserted into a hole of the ski boot, or that Coupling element at the central attachment point only by at least one shoe protruding pin, which is inserted into a hole of the ski boot, is held and held at the two outer attachment points by means of a screw connection.
  • the coupling element is made of a metal casting and has at least in the region of its abutment sections and / or above the abutment sections has a thickness which is greater than about 2.5 mm.
  • Such a coupling element has sufficient internal stability in order to withstand the forces exerted by the pins in the load case forces can.
  • the edge region of the coupling element offers a contact surface which is larger than conventional coupling elements, so that frictional forces between the pins and the coupling element be reduced. This is particularly advantageous when the user shifts weight to the heel portion of the ski boot, for example, leans back, and the ski binding is claimed in this state to a side release (when acting on a vertical axis of rotation triggering torque acts on the ski boot).
  • the tripping behavior also depends in this case on the frictional force between the pins and the abutment portions of the coupling element, and a reduction in this frictional force enables a better defined and predictable triggering threshold, so that the tripping safety can be increased compared to coupling elements of lesser material thickness.
  • coupling holes may be formed in the heel portion of the ski boot into which pins projecting forward from an automatic heel of a ski binding engage the abutment portions. This allows the pins to be of sufficient length to completely cross the thickness of the coupling element and project slightly into the ski boot, thus preventing slippage of the pins from the abutment sections due to slightly inaccurate positioning of the ski boot relative to the heel strap can.
  • the object of the invention is achieved by the coupling element according to claim 9.
  • the coupling element can achieve the advantages and effects described above.
  • FIGS. 1 to 4 show in perspective view, in side view and in rear view, respectively, a heel region of a ski boot 10, comprising a shaft portion 12 and a sole portion 14.
  • the ski boot 10 defines a shoe centerline M which passes through the ski boot 10 in the direction of a shoe longitudinal axis, and defines a vertical shoe center plane E containing the shoe centerline M.
  • a coupling member 16 is fixed via three attachment points 18l, 18r, 20 in a manner to be described later.
  • the coupling member 16 includes a central portion 24 through which the shoe centerline M and the shoe center plane E extend in the fastened state of the coupling member 16, and a left arm portion 26l and a right arm portion 26r extending from an upper portion of the central portion 24 into opposite lateral directions directions extend.
  • a central attachment point 20 is provided, which is formed by a concentric with the shoe center plane E arranged central hole, which is designed to receive a central fastening screw 28 (see. FIG. 4 ).
  • abutment sections in the form of grooves 30l, 30r are respectively provided on the lateral edges of the central section 24, whose contour corresponds to the outer contour of pins 31l, 31r (cf. FIGS. 6 and 7 ) of a not illustrated heel machine a touring ski binding (for example, one of the EP 0 199 098 A2 known heel machines) is adjusted.
  • the grooves 30l, 30r accordingly have a circular-segment-shaped contour.
  • the grooves 30l, 30r are preferably at their upper ends in each case in the arm portions 26l and 26r over, while they can pass at their lower ends in each case laterally outwardly projecting release projections 32l, 32r.
  • the side edges of the central portion 24 preferably respectively form guide slopes 34l, 34r which face each other downwardly so that the central portion 24 tapers downwardly.
  • two pins 361, 36r projecting towards the shoe may be formed on the central section 24, which are designed for the positive engagement in corresponding holes of the sole section 14.
  • the arm portions 26l, 26r are substantially T-shaped from the central portion 24, preferably laterally to the left and to the right, respectively. They start at the central portion 24 above the grooves 30l, 30r, so that they extend above the engaged in the grooves 30l, 30r pins 31l, 31r.
  • the grooves 30l, 30r open directly into the arm portions 26l, 26r, and the arm portions 26l, 26r can with their lower edge portions 38l, 38r on the top of the pins 31l, 31r rest, so that weight can be introduced from the ski boot 10 in the pins 31l, 31r.
  • the arm portions 26l, 26r extend outwardly beyond the grooves 30l, 30r and thus beyond the engaged pins 31l, 31r. At the same time they extend according to a plan view FIG. 7 along an arc, which is adapted to the contour of the heel portion of the sole portion 14 of the ski boot 10 forward.
  • the outer attachment points 181, 18r for fastening the coupling element 16 to the ski boot 10 are respectively provided on the arm sections 26l, 26r.
  • the outer attachment points 181, 18r are formed with through holes, by the fastening screws 40l, 40r (only in FIG. 4 shown) and can be screwed into the sole portion 14 of the ski boot 10.
  • Both the through holes of the outer attachment points 181, 18r and the through hole of the central attachment point 20 may be provided with a tapered phase to prepare the coupling element 16 for attachment by countersunk screws 40l, 40r, 28 substantially over the outer contour of the coupling element 16 do not protrude.
  • the arm portions 26l, 26r are widened at their ends having the outer attachment points 18l, 18r and in particular each have a downwardly projecting extension portion 421, 42r.
  • the extension sections 42l, 42r can provide sufficient space for the provision of the outer attachment points 181, 18r on the coupling element 16, so that in particular through holes of sufficient size can be provided for a stable screw connection. Further, by expanding the extension portions 42l, 42r downward, the height of the outer attachment points 18l, 18r can be lowered, so that the Overall height of the coupling element 16 can be reduced and the space available at the rear sole portion 14 space can be well used. In particular, for example, in FIGS.
  • the arm portions 261, 26r span the pins 31l 31r in a bridge-like manner, so that the coupling element 16 is fastened on both sides of each pin by the central attachment point 20 on the one hand and by one of the two outer attachment points 18l, 18r on the other hand. In this way, a very stable attachment of the coupling element 16 with respect to the force introduction point (between the pins 31l 31 r and the grooves 30l, 30r) is provided.
  • the coupling member 16 is integrally formed of a metal casting, e.g. a steel casting formed.
  • the coupling element is at least in the region of the grooves 30l, 30r or / and in the region of the lower edge portions 38l, 38r of the arm portions 26l, 26r of sufficient material thickness to increase the contact surface between the pins 31l, 31 r and the grooves 30l, 30r so that the frictional forces between these elements are reduced and wear is reduced.
  • the coupling element 16 in the region of the grooves 30l, 30r or the edge portions 38l, 38r may have a reinforcing portion 43, which is correspondingly thicker, e.g.
  • the coupling element 16 in the remaining sections e.g. is provided in the more distal regions of the arm portions 26l, 26r and the remaining central portion 24, only with a sheet thickness of about 2 mm, so that still the necessary stability is ensured.
  • the coupling element 16 could be formed of a sheet of constant thickness in the range of about 3 mm to about 5 mm. If weight reduction is given priority over the friction characteristics, however, a stable coupling element can also be provided with a continuous sheet thickness of approximately 2 mm. It should also be noted that a distance y between the outer attachment points 18l, 18r in the exemplary embodiment is approximately 60 mm, while the distance between the pins 31l 31r and the associated grooves 30l, 30r is approximately 20 mm. Thus, the outer attachment points 18l, 18r are significantly farther away from the shoe center line M than the pins 31l, 31r and thus can use much longer levers for the attachment of the coupling element 16 than the pins 31l, 31r for introducing the forces.
  • the ski boot 10 For entering the binding, the ski boot 10 is positioned above the pins 31l, 31r of the binding and lowered in an approximately vertical direction, the pins 31l, 31r passing through respective slot-shaped recesses 44l, 44r in the sole portion 14 which descend towards the sole 46 of the sole Open ski boot 10, enter.
  • the pins 31l, 31r then come in further downward movement of the heel portion of the ski boot 10 in abutting contact with the Ein Anlagensschrägen 34l, 34r and are pressed apart by them.
  • the ski binding holds the ski boot 10 firmly on the ski via the pins 31l, 31r, corresponding forces being introduced into the ski boot 10 via the pins 31l, 31r and the coupling element 16 become.
  • these forces are optimally introduced into the heel region of the ski boot 10 by utilizing lever effects and a distribution of the force introduction points, so that the coupling element 16 can be held stably on the ski boot 10.
  • the present invention is not limited to the above-mentioned embodiment.
  • the use of other attachment principles is conceivable.
  • an attachment by means of press fit could be provided at the central attachment point.
  • Other known attachment principles such as adhesive attachment or clamp attachment, are also conceivable.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

Die vorliegende Erfindung betrifft einen Skischuh gemäß dem Oberbegriff des Anspruchs 1 sowie ein Kopplungselement gemäß dem Oberbegriff des Anspruchs 8.The present invention relates to a ski boot according to the preamble of claim 1 and a coupling element according to the preamble of claim 8.

Ein weit verbreiteter Typ von Skibindungen verwendet für die Kopplung zwischen einem Fersenautomaten und einem Fersenabschnitt eines Skischuhs zwei parallele, von dem Fersenautomaten nach vorn vorstehende Stifte, die mit einem am Skischuh befestigten Kopplungselement in Eingriff treten, um den Skischuh in seinem Fersenbereich am Ski zu fixieren. Ein Beispiel für ein Kopplungssystem dieser Art ist aus der EP 0 199 098 A2 bekannt, welche als Kopplungselement ein am Fersenbereich einer Sohle eines Skischuhs zu befestigendes Blech beschreibt. Das Blech ist mittels zweier zentraler Schrauben am Skischuh befestigt, welche entlang einer vertikalen Skimittelebene verlaufen. Die vertikale Schuhmittelebene verläuft orthogonal zum Blech und teilt das Blech in zwei spiegelsymmetrische Hälften. Die auf unterschiedlichen Seiten der Schuhmittelebene liegenden Seitenränder des Blechs weisen jeweils eine Nut als Anlageabschnitte für die von dem Fersenautomat vorstehenden Stifte auf. Die Stifte sind durch eine elastische Kraft in Eingriff mit den Nuten vorgespannt, so dass sie den Skischuh in der Abfahrtsstellung sicher an der Skibindung und damit am Ski fixiert halten, wobei bei Überschreitung einer Sturzauslösekraft die elastische Kraft der Stifte überwunden wird und sich der Skischuh aus dem Eingriff mit den Stiften löst, um den Skischuh freizugeben.One common type of ski binding uses for coupling between an automatic heel and a heel portion of a ski boot two parallel pins projecting forwardly from the heel unit which engage a coupling element attached to the ski boot to fix the ski boot in the heel region to the ski , An example of a coupling system of this kind is from the EP 0 199 098 A2 known, which describes as a coupling element to be fastened to the heel region of a sole of a ski boot plate. The sheet metal is fastened to the ski boot by means of two central screws which run along a vertical ski center plane. The vertical shoe center plane is orthogonal to the sheet and divides the sheet into two mirror-symmetrical halves. The lying on different sides of the shoe center plane side edges of the sheet each have a groove as abutting portions for the protruding from the heel machine pins. The pins are through an elastic force biased into engagement with the grooves, so that they hold the ski boot securely in the downhill position on the ski binding and thus on the ski, which is exceeded in a fall trigger force, the elastic force of the pins and the ski boot out of engagement with the Pins releases to release the ski boot.

Die in der EP 0 199 098 A2 beschriebene Skibindung ist als Tourenskibindung konzipiert und erlaubt ferner die Verstellung von der Abfahrtsstellung in eine Gehstellung, in welche der Fersenautomat so verstellt ist, dass er ein Abheben des Fersenbereichs des Skischuhs vom Ski erlaubt. Es ist an dieser Stelle jedoch darauf hinzuweisen, dass die vorliegende Erfindung nicht auf Skibindungen dieses Typs begrenzt ist, sondern sich gleichermaßen auf andere Bindungen für Abfahrtski, Langlaufski oder auch Snowboards oder Splitboards erstreckt, sofern die Bindung mit einem Fersenautomaten arbeitet, der über zwei nach vorn vorstehende Stifte verfügt. Außerdem ist unter dem Begriff "Skibindung" bzw. "Skischuh" im Rahmen der vorliegenden Offenbarung gleichermaßen Snowboardequippment und Splitboardequippment zu verstehen, so dass auch ein Snowboardschuh als Skischuh im Sinne vorliegenden Offenbarung verstanden wird und auch eine Snowboardbindung als Skibindung im Sinne der vorliegenden Offenbarung verstanden wird.The in the EP 0 199 098 A2 described ski binding is designed as touring ski binding and also allows the adjustment of the downhill to a walking position, in which the automatic heel is adjusted so that it allows lifting the heel of the ski boot from the ski. It should be noted at this point, however, that the present invention is not limited to ski bindings of this type, but extends equally to other bindings for downhill skis, cross-country skis or snowboards or splitboards, if the binding works with a heel piece, the two more front projecting pins has. In addition, the term "ski binding" or "ski boot" in the context of the present disclosure equally Snowboardequippment and Splitboardequippment to understand, so that a snowboard boot as ski boot in the sense of the present disclosure is understood and understood a snowboard binding as ski binding in the sense of the present disclosure becomes.

Herkömmliche Kopplungselemente, beispielsweise der vorstehend beschriebenen Art, stoßen mit der Weiterentwicklung des Skisports zunehmend an ihre Grenzen. Grund dafür sind insbesondere die vor allem im Rennsport verstärkt geforderten höheren Auslöseschwellwerte für den Fersenautomaten, die auch bei hohen Spitzenbelastungen während der Abfahrt ein ungewolltes Auslösen der Skibindung sicher vermeiden sollen. Diese Belastungen haben in der Praxis zu erhöhtem Verschleiß der Skischuhe im Bereich der Kopplungslemente sowie teilweise zu einem Lockern oder gar Herausbrechen der Kopplungselemente geführt. Die Festigkeit der Kopplungselemente könnte zwar durch die Verwendung größerer Schrauben etwas verbessert werden, die Möglichkeiten dafür sind jedoch aufgrund des durch die Stifte begrenzten Bauraums eingeschränkt.Conventional coupling elements, for example of the type described above, are increasingly coming up against the limits with the further development of skiing. This is due in particular to the higher triggering thresholds, which are increasingly required, especially in racing, for the automatic heel unit, which should reliably prevent unintentional triggering of the ski binding even at high peak loads during departure. In practice, these loads have led to increased wear of the ski boots in the area of the coupling elements and in some cases to a loosening or even breaking out of the coupling elements. Although the strength of the coupling elements could be improved by the use of larger screws something, the possibilities are However, limited due to the space limited by the pins space.

Ein Skischuh mit den Merkmalen des Oberbegriffs des Anspruchs 1 ist aus der US 2007/204486 A1 bekannt.A ski boot having the features of the preamble of claim 1 is known from US 2007/204486 A1 known.

Ferner offenbart die FR 1 487 281 einen Skischuh, welcher einen Schaftabschnitt und einen Sohlenabschnitt umfasst, wobei in einem Fersenabschnitt des Sohlenabschnitts ein Kopplungselement an dem Sohlenabschnitt befestigt ist, wobei das Kopplungselement vier außenliegende Befestigungspunkte zur Befestigung am Skischuh umfasst und wobei in einem zentralen Abschnitt des Kopplungselements ein Anschlag zum Eingriff mit einer Skibindung vorgesehen ist.Further, the FR 1 487 281 a ski boot comprising a shaft portion and a sole portion, wherein in a heel portion of the sole portion, a coupling member is attached to the sole portion, wherein the coupling element comprises four outer attachment points for attachment to the ski boot and wherein in a central portion of the coupling element is a stop for engagement with a Ski binding is provided.

Ferner wird hingewiesen auf die US 2 234 453 A , welche eine Schuhplatte zur Befestigung an der Sohle eines Schuhs mittels einer Mehrzahl von Befestigungsnägeln, die durch entsprechende Löcher der Schuhplatte einzuführen sind, offenbart.It is also pointed to the US 2 234 453 A discloses a cleat for attachment to the sole of a shoe by means of a plurality of fastening nails to be inserted through corresponding holes of the cleat.

Vor diesem Hintergrund ist es Aufgabe der vorliegenden Erfindung ein Kopplungselement für einen Skischuh sowie einen Skischuh mit einem solchen Kopplungselement bereitzustellen, welche höhere Dauerfestigkeit und geringeren Verschleiß aufweisen und auch höheren Belastungen sicher standhalten.Against this background, it is an object of the present invention to provide a coupling element for a ski boot and a ski boot with such a coupling element, which have higher fatigue strength and lower wear and withstand higher loads safely.

Nach einem ersten Aspekt der vorliegenden Erfindung wird die Erfindungsaufgabe gelöst durch einen Skischuh gemäß Anspruch 1 und ein Kopplungselement gemäß Anspruch 8.According to a first aspect of the present invention, the object of the invention is achieved by a ski boot according to claim 1 and a coupling element according to claim 8.

Erfindungsgemäß basiert somit die Stabilisierung und die Verbesserung der Verschleißfestigkeit des Kopplungselements nicht auf der Verwendung größerer und stabilerer Schraubverbindungen oder der Verwendung eines festeren Materials für das Kopplungselement sondern auf einer grundlegend geänderten Formgebung des Kopplungselements und auf der Verwendung einer hinsichtlich der Anordnung der Befestigungspunkte und hinsichtlich der Verteilung und Richtungen der in den Skischuh eingeleiteten Kräfte neuartigen Befestigungsstruktur. Die seitlich nach außen verlaufenden Armabschnitte ermöglichen die Bereitstellung zweier zusätzlicher Befestigungspunkte, die nicht im zentralen Bereich in der Nähe der Schuhmittelebene liegen sondern lateral außen und eine vorteilhafte Verteilung der Krafteinleitung über einen größeren Bereich des Skischuhs ermöglichen.Thus, according to the invention, the stabilization and the improvement of the wear resistance of the coupling element is based not on the use of larger and more stable screw connections or the use of a stronger material for the coupling element but on a fundamentally changed shape of the coupling element and on the use of a with respect to the arrangement of the attachment points and in terms of Distribution and directions of the forces introduced into the ski boot novel attachment structure. The laterally outwardly extending arm portions enable the provision of two additional attachment points, which are not in the central area in the vicinity of the shoe center plane but laterally outside and allow an advantageous distribution of force transmission over a larger area of the ski boot.

Insbesondere sind die erfindungsgemäßen äußeren Befestigungspunkte außerhalb der Anlageabschnite des Kopplungselements angeordnet, so dass die so geschaffene Befestigungsstruktur nicht mehr den durch den Abstand der Stifte vorgegebenen Bauraumbeschränkungen unterworfen ist. Die Armabschnitte führen aus diesem Bereich heraus, und nutzen hintere seitliche Abschnitte des Fersenbereichs des Skischuhs zur zusätzlichen Befestigung des Kopplungselements. Auf diese Weise kann das Kopplungselement sehr stabil am Skischuh befestigt werden, so dass es auch bei langer und anspruchsvoller Benutzung sicher am Skischuh verbleibt und Verschleiß reduziert wird. Zudem wird ein Lockern oder gar Herausbrechen des Kopplungselements auch bei sehr hohen Auslöseschwellwerten sicher verhindert.In particular, the outer attachment points according to the invention are arranged outside the abutment sections of the coupling element, then that the attachment structure thus created is no longer subject to the space limitations imposed by the spacing of the pins. The arm portions lead out of this area, and utilize rear side portions of the heel portion of the ski boot for additional attachment of the coupling element. In this way, the coupling element can be very stably attached to the ski boot, so that it remains safe even with long and demanding use of the ski boot and wear is reduced. In addition, a loosening or even breaking out of the coupling element is reliably prevented even at very high trigger thresholds.

Das Kopplungselement weist einen Zentralabschnitt auf, an weichem der zentrale Befestigungspunkt angeordnet ist, wobei sich die Armabschnitte von dem Zentralabschnitt aus im Wesentlichen in zueinander entgegengesetzte Richtungen erstrecken. Ein solches Kopplungselement weist eine einfache Form auf und kann kostengünstig und stabil, beispielsweise aus einem geeigneten Metallblech, gefertigt werden.The coupling element has a central portion on which the central attachment point is arranged, the arm portions extending from the central portion in substantially opposite directions. Such a coupling element has a simple shape and can be manufactured inexpensively and stably, for example from a suitable metal sheet.

Das Kopplungselement weist einen Zentralabschnitt auf, an welchem der zentrale Befestigungspunkt angeordnet ist. Die Anlageabschnitte können an gegenüberliegenden seitlichen Randabschnitten des Zentralabschnitts angeordnet sein und jeweils eine Nut zur Aufnahme eines Stifts des Fersenautomaten aufweisen. Mit einer solchen Nut ist mit einfachen Mitteln eine formschlüssige Sollposition für die Anlage der Stifte in der Abfahrtsstellung geschaffen, wobei durch entsprechende Dimensionierung der Nuten die Auslöseeigenschaften des Kopplungselements beeinflusst werden können.The coupling element has a central portion, on which the central attachment point is arranged. The abutment sections can be arranged on opposite lateral edge sections of the central section and can each have a groove for receiving a pin of the automatic heel unit. With such a groove, a form-fitting setpoint position for the installation of the pins in the downhill position is created by simple means, wherein the tripping characteristics of the coupling element can be influenced by appropriate dimensioning of the grooves.

Von den Erfindern durchgeführte Belastungstests und Simulationen sowie Berechnungen zum Auslöseverhalten haben ergeben, dass das herkömmliche Kopplungselement, z.B. ein Kopplungselement gemäß der EP 0 199 098 A2 , bei Einwirkung eines sehr hohen My-Drehmoments (eines Drehmoments um eine Querachse, die orthogonal zur Skilängsachse und orthogonal zur vertikalen Achse verläuft) auf den Skischuh in Bezug auf den Skischuh nach unten gezogen wird, und gleichzeitig vom Schuh weg gekippt wird. Die in das Koppfungselement eingeleiteten Kräfte wirken somit teilweise vom Schuh weg sowie teilweise nach unten. Die Befestigungspunkte und die Form des Kopplungselements sind auf diese Kraftrichtungen optimal angepasst, indem die Armabschnitte sich flügelartig oberhalb derAnlageabschnitte nach außen erstrecken. Durch diese Konfiguration wird insbesondere dem in den Belastungstests beobachteten Wegkippen des Kopplungselements entgegengewirkt.Load tests and simulations performed by the inventors as well as calculations for the tripping behavior have shown that the conventional coupling element, eg a coupling element according to the EP 0 199 098 A2 , upon application of a very high My-torque (a torque about a transverse axis orthogonal to the longitudinal axis of the ski and orthogonal to the vertical axis) on the ski boot relative to the ski boot is pulled down, and simultaneously tilted away from the shoe. The introduced into the coupling element forces thus act partially away from the shoe and partially down. The attachment points and the shape of the coupling element are optimally adapted to these directions of force, in that the arm sections extend outwardly in a wing-like manner above the abutment sections. This configuration counteracts in particular the tilting of the coupling element observed in the load tests.

In einer Ausführungsform wird vorgeschlagen, dass die äußeren Befestigungspunkte in verbreiterten Endabschnitten der Armabschnitte angeordnet sind, so dass es möglich ist, in den Endabschnitten ausreichend Material für die Ausbildung der Befestigungspunkte bereitzustellen, beispielsweise ein Befestigungsloch anzuordnen, während die Dicke der Armabschnitte zur Einsparung von Gewicht bei gleicher Gesamtfestigkeit des Kopplungselement kleiner gewählt werden kann. Vorzugsweise sind die verbreiterten Endabschnitte nach unten erweiterte Endabschnitte, wodurch der zusätzliche Vorteil erzielt wird, dass die Position der Befestigungspunkte in Bezug auf die vertikale Richtung näher an die Anlageabschnitte des Kopplungselements verlagert werden kann und der im Fersenbereich des Skischuhs vorhandene Bereich zur Montage des Kopplungselements optimal ausgenutzt werden kann.In one embodiment, it is proposed that the outer attachment points are arranged in widened end portions of the arm portions, so that it is possible to provide sufficient material in the end portions for the formation of the attachment points, for example to arrange a mounting hole, while the thickness of the arm portions to save weight can be chosen smaller for the same overall strength of the coupling element. Preferably, the widened end portions are downwardly extended end portions, thereby providing the additional advantage that the position of the attachment points with respect to the vertical direction can be displaced closer to the abutment portions of the coupling element and the range for mounting the coupling element optimally present in the heel area of the ski boot can be exploited.

Weiterhin wird daran gedacht, dass das Kopplungselement eine im Wesentlichen bogenförmige und einem Fersenbereich eines Skischuhs angepasste Gestalt aufweist. Das Kopplungselement ist dann optimal an die Kontur eines Skischuhs im Fersenbereich angepasst, um sicher daran befestigt zu werden.It is further contemplated that the coupling element has a substantially arcuate shape adapted to a heel region of a ski boot. The coupling element is then optimally adapted to the contour of a ski boot in the heel area to be securely attached thereto.

An mindestens einem der äußeren Befestigungspunkte weisen die Befestigungsmittel eine Durchgangsöffnung oder einen zum Schuh hin vorstehenden Zapfen auf. Im Falle einer Durchgangsöffnung kann das Kopplungselement an dem Befestigungspunkt mittels einer durch die Durchgangsöffnung hindurch geführten Schraube am Schuh befestigt werden. Alternativ ist an mindestens einem der äußeren Befestigungspunkte ein zum Schuh hin vorstehender Zapfen bereitgestellt, welcher im Presssitz in einer entsprechenden Öffnung des Skischuhs sitzt. Erfindungsgemäß sind die äußeren Befestigungspunkte des Kopplungselements seitlich außerhalb der Anlageabschnitte des Kopplungselements angeordnet. Bei einem weit verbreiteten Typ von Skibindungen beträgt der Abstand zwischen den Anlageflächen der Stifte in etwa 20 mm, so dass die erfindungsgemäße Verbesserung der Befestigungsstruktur erreicht wird, wenn ein Abstand zwischen den äußeren Befestigungspunkten größer ist als ungefähr 20 mm. Eine deutliche weitere Steigerung der Stabilität der Befestigung des Kopplungselements kann erreicht werden, wenn der Abstand zwischen den äußeren Befestigungspunkten größer ist als ungefähr 40 mm, da dann die Hebelwirkung der verlängerten Armabschnitte gut genutzt werden kann. Die besten Belastungstests wurden mit Kopplungselementen erzielt, bei welchen ein Abstand zwischen den äußeren Befestigungspunkten größer ist als ungefähr 60 mm.At at least one of the outer fastening points, the fastening means have a passage opening or a pin protruding toward the shoe. In the case of a through hole, the coupling element can the attachment point are fastened by means of a guided through the through hole screw on the shoe. Alternatively, at least one of the outer attachment points, a pin projecting towards the shoe is provided, which sits in a press fit in a corresponding opening of the ski boot. According to the invention, the outer fastening points of the coupling element are arranged laterally outside the contact sections of the coupling element. In a common type of ski binding, the distance between the abutment surfaces of the pins is about 20 mm, so that the improvement of the attachment structure according to the invention is achieved when a distance between the outer attachment points is greater than about 20 mm. A clear further increase in the stability of the attachment of the coupling element can be achieved if the distance between the outer attachment points is greater than about 40 mm, since then the leverage of the extended arm portions can be well used. The best stress tests were achieved with coupling elements in which a distance between the outer attachment points is greater than about 60 mm.

In einer weiteren bevorzugten Ausführungsform der Erfindung kann das Kopplungselement mindestens einen schuhseitig vorstehenden Zapfen aufweisen, welcher bei der Befestigung des Kopplungselements am Skischuh in ein Loch im Fersenbereich des Skischuhs eingeführt oder einführbar ist. Der vorstehende Zapfen kann die Montage des Kopplungselements am Skischuh unterstützen, indem er das Kopplungselement vorübergehend in der korrekten Position am Skischuh hält. Ferner kann der formschlüssige Eingriff zwischen Zapfen und zugehörigem Loch die Stabilität des Kopplungselements gegen Verkippen unter Belastung weiter verbessern.In a further preferred embodiment of the invention, the coupling element may have at least one shoe protruding pin, which is inserted or insertable in the attachment of the coupling element on the ski boot in a hole in the heel region of the ski boot. The protruding pin can assist in mounting the coupling element to the ski boot by temporarily holding the coupling element in the correct position on the ski boot. Further, the positive engagement between pin and associated hole can further improve the stability of the coupling element against tilting under load.

Durch die erfindungsgemäßen Armabschnitte können zusätzliche Befestigungspunkte an dem Kopplungselement bereitgestellt werden, um die Stabilität der Befestigung des Kopplungselements zu steigern, wie vorstehend bereits beschrieben wurde. Um diesen Effekt zu erreichen, ist es nicht unbedingt erforderlich, dass das Kopplungselement in allen Befestigungspunkten mit gleichem mechanischem Aufwand, und gleicher Belastbarkeit befestigt ist. So wird beispielsweise in Varianten der Erfindung vorgeschlagen, dass das Kopplungselement an dem zentralen Befestigungspunkt mittels einer Schraubverbindung gehalten ist und an den beiden äußeren Befestigungspunkten nur durch jeweils mindestens einen vorstehenden Zapfen, der in ein Loch des Skischuhs eingeführt ist, gehalten ist, oder dass das Kopplungselement an dem zentralen Befestigungspunkt nur durch mindestens einen schuhseitig vorstehenden Zapfen, der in ein Loch des Skischuhs eingeführt ist, gehalten ist und an den beiden äußeren Befestigungspunkten mittels einer Schraubverbindung gehalten ist. Gedacht wird demnach an eine Mischung unterschiedlicher Befestigungsprinzipien an ein und demselben Kopplungselement, so dass die Montage des Kopplungselements erleichtert wird (insbesondere an den Befestigungspunkten, an denen ein vorstehender Zapfen lediglich in ein Loch des Skischuhs einzuführen ist), während verbesserte oder gleich bleibende Stabilität der Verbindung zwischen Kopplungselement und Skischuh gegenüber herkömmlichen Kopplungselementen gewährleistet ist.By arm portions according to the invention can additional Attachment points are provided on the coupling element in order to increase the stability of the attachment of the coupling element, as already described above. To achieve this effect, it is not absolutely necessary that the coupling element in all attachment points with the same mechanical effort, and the same load capacity is attached. Thus, for example, in variants of the invention, it is proposed that the coupling element is held at the central attachment point by means of a screw connection and held at the two outer attachment points only by at least one protruding pin which is inserted into a hole of the ski boot, or that Coupling element at the central attachment point only by at least one shoe protruding pin, which is inserted into a hole of the ski boot, is held and held at the two outer attachment points by means of a screw connection. It is therefore thought of a mixture of different attachment principles on the same coupling element, so that the assembly of the coupling element is facilitated (especially at the attachment points where a protruding pin is only to be inserted into a hole in the ski boot), while improved or constant stability of Connection between the coupling element and ski boot compared to conventional coupling elements is guaranteed.

Vorzugsweise ist das Kopplungselement aus einem Metallgussteil hergestellt und weist zumindest im Bereich seiner Anlageabschnitte oder/und oberhalb der Anlageabschnitte eine Dicke auf, die größer ist als ungefähr 2,5 mm. Ein solches Kopplungselement hat ausreichende innere Stabilität, um den von den Stiften im Belastungsfall ausgeübten Kräften widerstehen zu können.Preferably, the coupling element is made of a metal casting and has at least in the region of its abutment sections and / or above the abutment sections has a thickness which is greater than about 2.5 mm. Such a coupling element has sufficient internal stability in order to withstand the forces exerted by the pins in the load case forces can.

Liegt die Dicke des Kopplungselements zwischen ungefähr 3,5 mm und ungefähr 4,5 mm, so bietet der Randbereich des Kopplungselements eine gegenüber herkömmlichen Kopplungselementen vergrößerte Anlagefläche, so dass Reibungskräfte zwischen den Stiften und dem Kopplungselement reduziert werden. Dies ist insbesondere dann vorteilhaft, wenn der Nutzer Gewichtskraft auf den Fersenabschnitt des Skischuhs verlagert, sich beispielsweise zurück lehnt, und die Skibindung in diesem Zustand auf eine Seitenauslösung beansprucht wird (wenn ein um eine vertikale Drehachse wirkendes Auslösedrehmoment auf den Skischuh wirkt). Das Auslöseverhalten hängt in diesem Fall auch von der Reibungskraft zwischen den Stiften und den Anlageabschnitten des Kopplungselements ab und eine Reduzierung dieser Reibungskraft ermöglicht eine besser definierte und vorhersehbare Auslöseschwelle, so dass die Auslösesicherheit im Vergleich mit Kopplungselementen geringerer Materialstärke gesteigert werden kann.If the thickness of the coupling element is between approximately 3.5 mm and approximately 4.5 mm, then the edge region of the coupling element offers a contact surface which is larger than conventional coupling elements, so that frictional forces between the pins and the coupling element be reduced. This is particularly advantageous when the user shifts weight to the heel portion of the ski boot, for example, leans back, and the ski binding is claimed in this state to a side release (when acting on a vertical axis of rotation triggering torque acts on the ski boot). The tripping behavior also depends in this case on the frictional force between the pins and the abutment portions of the coupling element, and a reduction in this frictional force enables a better defined and predictable triggering threshold, so that the tripping safety can be increased compared to coupling elements of lesser material thickness.

Ferner können bei einem Skischuh der erfindungsgemäßen Art, fluchtenden mit den beiden Anlageabschnitten des Kopplungselements, Kopplungslöcher in dem Fersenbereich des Skischuhs ausgebildet sein, in welche von einem Fersenautomat einer Skibindung nach vorn vorstehende und an den Anlageabschnitten anliegende Stifte eingreifen. Dies erlaubt, dass die Stifte ausreichende Länge aufweisen, um die Dicke des Kopplungselements vollständig zu überqueren und ein Stück weit in den Skischuh hineinzuragen, so dass ein Abrutschen der Stifte von den Anlageabschnitten aufgrund einer geringfügig ungenauen Positionierung des Skischuhs in Bezug auf den Fersenautomat verhindert werden kann.Furthermore, in a ski boot of the type according to the invention, aligned with the two abutment portions of the coupling element, coupling holes may be formed in the heel portion of the ski boot into which pins projecting forward from an automatic heel of a ski binding engage the abutment portions. This allows the pins to be of sufficient length to completely cross the thickness of the coupling element and project slightly into the ski boot, thus preventing slippage of the pins from the abutment sections due to slightly inaccurate positioning of the ski boot relative to the heel strap can.

Nach einem zweiten Aspekt der vorliegenden Erfindung wird die Erfindungsaufgabe gelöst durch Kopplungselement gemäß Anspruch 9. In Verbindung mit den vorstehend beschriebenen, verschiedenen Ausführungsformen des Skischuhs des ersten Aspekts der Erfindung kann das Kopplungselement die jeweils oben beschriebenen Vorteile und Effekte erzielen.According to a second aspect of the present invention, the object of the invention is achieved by the coupling element according to claim 9. In conjunction with the various embodiments of the ski boot of the first aspect of the invention described above, the coupling element can achieve the advantages and effects described above.

Die Erfindung wird nachfolgend anhand eines bevorzugten Ausführungsbeispiels unter Bezugnahme auf die beigefügten Zeichnungen näher erläutert. Es zeigen:

Figuren 1 und 2
perspektivische Ansichten von oben bzw. von unten für einen Fersenbereich eines Skischuhs mit einem daran befestigten Kopplungselement gemäß einem Ausführungsbeispiel der vorliegenden Erfindung;
Figur 3
eine Seitenansicht des in Figuren 1 und 2 gezeigten Fersenbereichs mit Kopplungselement;
Figur 4
eine Rückansicht des in Figur 1 und 2 gezeigten Fersenbereichs mit Kopplungselement;
Figur 5
eine Seitenansicht des in Figuren 1 und 2 gezeigten Kopplungselements in einem unmontierten Zustand;
Figur 6
eine Rückansicht des in Figur 5 gezeigten Kopplungselements;
Figur 7
eine Draufsicht des in Figur 5 gezeigten Kopplungselements; und
Figuren 8 und 9
perspektivische Ansichten von oben bzw. von unten für das in Figuren 1 und 2 gezeigte Kopplungselement, jeweils im unmontierten Zustand.
The invention will be explained in more detail below with reference to a preferred embodiment with reference to the accompanying drawings. Show it:
Figures 1 and 2
top and bottom perspective views of a heel region of a ski boot with a coupling element attached thereto according to an embodiment of the present invention;
FIG. 3
a side view of the in Figures 1 and 2 shown heel area with coupling element;
FIG. 4
a rear view of the in FIGS. 1 and 2 shown heel area with coupling element;
FIG. 5
a side view of the in Figures 1 and 2 shown coupling element in an unmounted state;
FIG. 6
a rear view of the in FIG. 5 shown coupling element;
FIG. 7
a top view of the in FIG. 5 shown coupling element; and
FIGS. 8 and 9
perspective views from above or from below for the in Figures 1 and 2 shown coupling element, respectively in the unmounted state.

Figuren 1 bis 4 zeigen in perspektivischer Ansicht, in Seitenansicht bzw. in Rückansicht jeweils einen Fersenbereich eines Skischuhs 10, weicher einen Schaftabschnitt 12 und einen Sohlenabschnitt 14 umfasst. Der Skischuh 10 definiert eine Schuhmittellinie M, welche den Skischuh 10 in Richtung einer Schuhlängsachse durchsetzt, und definiert eine vertikale Schuhmittelebene E, welche die Schuhmittellinie M enthält. FIGS. 1 to 4 show in perspective view, in side view and in rear view, respectively, a heel region of a ski boot 10, comprising a shaft portion 12 and a sole portion 14. The ski boot 10 defines a shoe centerline M which passes through the ski boot 10 in the direction of a shoe longitudinal axis, and defines a vertical shoe center plane E containing the shoe centerline M.

An dieser Stelle soll darauf hingewiesen werden, dass in der vorliegenden Offenbarung, einschließlich den Ansprüchen, sämtliche Richtungsbezeichnungen, wie etwa "oben", "unten", "seitlich", "vorn", "hinten" usw. sich auf einen Skischuh beziehen, der mit seinem Sohlenabschnitt auf einem horizontalen Untergrund steht, so dass die Schuhspitze des Skischuhs in Richtung der Schuhmittellinie M nach vorn zeigt, der Sohlenabschnitt 14 unterhalb des Schaftabschnitts 12 angeordnet ist und der Schaftabschnitt 12 nach oben geöffnet ist.It should be noted at this juncture that in the present disclosure, including the claims, all directional designations such as "top", "bottom", "side", "front", "rear" etc. refer to a ski boot, which stands with its sole portion on a horizontal surface, so that the toe of the ski boot points in the direction of the shoe center line M forward, the sole portion 14 is disposed below the shaft portion 12 and the shaft portion 12 is open upward.

An einem hinteren Abschnitt des Sohlenabschnitts 14 ist ein Kopplungselement 16 in später noch genauer zu beschreibender Weise über drei Befestigungspunkte 18l, 18r, 20 befestigt. Das Kopplungselement 16 umfasst einen Zentralabschnitt 24, durch weichen im befestigten Zustands des Kopplungselements 16 die Schuhmittellinie M und die Schuhmittelebene E verläuft, sowie einen linken Armabschitt 26l und einen rechten Armabschnitt 26r, welche sich von einem oberen Abschnitt des Zentralabschnitts 24 aus in einander entgegengesetzte seitliche Richtungen erstrecken. Am Zentralabschnitt 24 ist ein zentraler Befestigungspunkt 20 vorgesehen, welche durch ein konzentrisch zur Schuhmittelebene E angeordnetes zentrales Loch gebildet ist, das zur Aufnahme einer zentralen Befestigungsschraube 28 ausgebildet ist (vgl. Figur 4).At a rear portion of the sole portion 14, a coupling member 16 is fixed via three attachment points 18l, 18r, 20 in a manner to be described later. The coupling member 16 includes a central portion 24 through which the shoe centerline M and the shoe center plane E extend in the fastened state of the coupling member 16, and a left arm portion 26l and a right arm portion 26r extending from an upper portion of the central portion 24 into opposite lateral directions directions extend. At the central portion 24, a central attachment point 20 is provided, which is formed by a concentric with the shoe center plane E arranged central hole, which is designed to receive a central fastening screw 28 (see. FIG. 4 ).

Beiderseits der Schuhmittelebene E sind an den seitlichen Rändern des Zentralabschnitts 24 jeweils Anlageabschnitte in Form von Nuten 30l, 30r vorgesehen, deren Kontur der Außenkontur von Stiften 31l, 31r (vgl. Figuren 6 und 7) eines nicht weiter dargestellten Fersenautomaten einer Tourenskibindung (beispielsweise eines aus der EP 0 199 098 A2 bekannten Fersenautomaten) angepasst ist. Im Ausführungsbeispiel weisen die Nuten 30l, 30r dementsprechend eine kreisabschnittsförmige Kontur auf. Die Nuten 30l, 30r gehen vorzugsweise an ihren oberen Enden jeweils in die Armabschnitte 26l bzw. 26r über, während sie an ihren unteren Enden jeweils in seitlich nach außen vorstehende Auslösevorsprünge 32l, 32r übergehen können. Weiter abwärts der Auslösevorsprünge 32l, 32r bilden die Seitenränder des Zentralabschnitts 24 vorzugsweise jeweils Einweisungsschrägen 34l, 34r, welche nach unten hin aufeinander zu verlaufen, so dass sich der Zentralabschnitt 24 nach unten hin verjüngt. Ferner können an dem Zentralabschnitt 24 zwei zum Schuh hin vorstehende Zapfen 361, 36r (in den Figuren beiderseits der Schuhmittelebene E) ausgebildet sein, welche für den formschlüssigen Eingriff in entsprechende Löcher des Sohlenabschnitts 14 ausgelegt sind.On either side of the shoe center plane E, abutment sections in the form of grooves 30l, 30r are respectively provided on the lateral edges of the central section 24, whose contour corresponds to the outer contour of pins 31l, 31r (cf. FIGS. 6 and 7 ) of a not illustrated heel machine a touring ski binding (for example, one of the EP 0 199 098 A2 known heel machines) is adjusted. In the exemplary embodiment, the grooves 30l, 30r accordingly have a circular-segment-shaped contour. The grooves 30l, 30r are preferably at their upper ends in each case in the arm portions 26l and 26r over, while they can pass at their lower ends in each case laterally outwardly projecting release projections 32l, 32r. Further downwards of the tripping projections 32l, 32r, the side edges of the central portion 24 preferably respectively form guide slopes 34l, 34r which face each other downwardly so that the central portion 24 tapers downwardly. Furthermore, two pins 361, 36r projecting towards the shoe (in the figures on both sides of the shoe center plane E) may be formed on the central section 24, which are designed for the positive engagement in corresponding holes of the sole section 14.

Die Armabschnitte 26l, 26r verlaufen im Wesentlichen T-förmig von dem Zentralabschnitt 24 vorzugsweise aus seitlich nach links bzw. nach rechts. Sie beginnen am Zentralabschnitt 24 oberhalb der Nuten 30l, 30r, so dass sie oberhalb der in den Nuten 30l, 30r eingerasteten Stifte 31l, 31r verlaufen.The arm portions 26l, 26r are substantially T-shaped from the central portion 24, preferably laterally to the left and to the right, respectively. They start at the central portion 24 above the grooves 30l, 30r, so that they extend above the engaged in the grooves 30l, 30r pins 31l, 31r.

Im Ausführungsbeispiel münden die Nuten 30l, 30r direkt in die Armabschnitte 26l, 26r, und die Armabschnitte 26l, 26r können mit ihren unteren Randabschnitten 38l, 38r auf der Oberseite der Stifte 31l, 31r aufliegen, so dass Gewichtskraft vom Skischuh 10 in die Stifte 31l, 31r eingeleitet werden kann.In the exemplary embodiment, the grooves 30l, 30r open directly into the arm portions 26l, 26r, and the arm portions 26l, 26r can with their lower edge portions 38l, 38r on the top of the pins 31l, 31r rest, so that weight can be introduced from the ski boot 10 in the pins 31l, 31r.

In den seitlichen Richtungen (nach links bzw. nach rechts ausgehend von der Schuhmittelebene E) erstrecken sich die Armabschnitte 26l, 26r nach außen über die Nuten 30l, 30r und damit über die eingerasteten Stifte 31l, 31 r hinweg. Gleichzeitig erstrecken sie sich in einer Draufsicht gemäß Figur 7 entlang eines Bogens, der der Kontur des Fersenbereichs des Sohlenabschnitts 14 des Skischuhs 10 angepasst ist, nach vorn.In the lateral directions (to the left or to the right, starting from the shoe center plane E), the arm portions 26l, 26r extend outwardly beyond the grooves 30l, 30r and thus beyond the engaged pins 31l, 31r. At the same time they extend according to a plan view FIG. 7 along an arc, which is adapted to the contour of the heel portion of the sole portion 14 of the ski boot 10 forward.

An ihren dem Zentralabschnitt 24 entfernt liegenden Enden sind an den Armabschnitten 26l, 26r jeweils die äußeren Befestigungspunkte 181, 18r zur Befestigung des Kopplungselements 16 am Skischuh 10 vorgesehen. Im Ausführungsbeispiel sind auch die äußeren Befestigungspunkte 181, 18r mit Durchgangslöchern ausgebildet, durch die Befestigungsschrauben 40l, 40r (nur in Figur 4 dargestellt) eingeführt und im Sohlenabschnitt 14 des Skischuhs 10 verschraubt werden können. Sowohl die Durchgangslöcher der äußeren Befestigungspunkte 181, 18r als auch das Durchgangsloch des zentralen Befestigungspunkts 20 können mit einer kegelförmigen Phase versehen sein, um das Kopplungselement 16 für die Befestigung mittels Senkkopfschrauben 40l, 40r, 28 vorzubereiten, welche über die Außenkontur des Kopplungselements 16 im Wesentlichen nicht vorstehen.At their ends remote from the central section 24, the outer attachment points 181, 18r for fastening the coupling element 16 to the ski boot 10 are respectively provided on the arm sections 26l, 26r. In the exemplary embodiment, the outer attachment points 181, 18r are formed with through holes, by the fastening screws 40l, 40r (only in FIG. 4 shown) and can be screwed into the sole portion 14 of the ski boot 10. Both the through holes of the outer attachment points 181, 18r and the through hole of the central attachment point 20 may be provided with a tapered phase to prepare the coupling element 16 for attachment by countersunk screws 40l, 40r, 28 substantially over the outer contour of the coupling element 16 do not protrude.

Im Ausführungsbeispiel sind die Armabschnitte 26l, 26r an ihren die äußeren Befestigungspunkte 18l, 18r aufweisenden Enden verbreitert und weisen insbesondere jeweils einen nach unten vorstehenden Erweiterungsabschnitt 421, 42r auf. Die Erweiterungsabschnitte 42l, 42r können am Kopplungselement 16 ausreichend Platz für die Bereitstellung der äußeren Befestigungspunkte 181, 18r schaffen, so dass insbesondere Durchgangslöcher ausreichender Größe für eine stabile Schraubverbindung bereit gestellt werden können. Dadurch dass die Erweiterungsabschnitte 42l, 42r nach unten hin erweitert sind, kann ferner die Höhe der äußeren Befestigungspunkte 18l, 18r abgesenkt werden, so dass die Gesamtbauhöhe des Kopplungselements 16 reduziert werden kann und der am hinteren Sohlenabschnitt 14 zur Verfügung stehende Bauraum gut genutzt werden kann. Insbesondere ist beispielsweise in Figuren 4 und 6 gut zu erkennen, dass die Armabschnitte 261, 26r die Stifte 31l 31r brückenartig überspannen, so dass das Kopplungselement 16 beiderseits jedes Stiftes durch den zentralen Befestigungspunkt 20 einerseits und durch einen der beiden äußeren Befestigungspunkte 18l, 18r andererseits befestigt ist. Auf diese Weise wird eine sehr stabile Befestigung des Kopplungselements 16 in Bezug auf den Krafteinleitungspunkt (zwischen den Stiften 31l 31 r und den Nuten 30l, 30r) geschaffen.In the exemplary embodiment, the arm portions 26l, 26r are widened at their ends having the outer attachment points 18l, 18r and in particular each have a downwardly projecting extension portion 421, 42r. The extension sections 42l, 42r can provide sufficient space for the provision of the outer attachment points 181, 18r on the coupling element 16, so that in particular through holes of sufficient size can be provided for a stable screw connection. Further, by expanding the extension portions 42l, 42r downward, the height of the outer attachment points 18l, 18r can be lowered, so that the Overall height of the coupling element 16 can be reduced and the space available at the rear sole portion 14 space can be well used. In particular, for example, in FIGS. 4 and 6 It can be clearly seen that the arm portions 261, 26r span the pins 31l 31r in a bridge-like manner, so that the coupling element 16 is fastened on both sides of each pin by the central attachment point 20 on the one hand and by one of the two outer attachment points 18l, 18r on the other hand. In this way, a very stable attachment of the coupling element 16 with respect to the force introduction point (between the pins 31l 31 r and the grooves 30l, 30r) is provided.

Das Koppfungselement 16 ist einstückig aus einem Metallgussteil, z.B. einem Stahlgussteil gebildet. Vorzugsweise ist das Kopplungselement zumindest im Bereich der Nuten 30l, 30r oder/und im Bereich der unteren Randabschnitte 38l, 38r der Armabschnitte 26l, 26r von ausreichender Materialstärke, um die Anlagefläche zwischen den Stiften 31l, 31 r und den Nuten 30l, 30r zu vergrößern, so dass die Reibungskräfte zwischen diesen Elementen verringert und Verschleiß reduziert wird. Dementsprechend kann das Kopplungselement 16 im Bereich der Nuten 30l, 30r bzw. der Randabschnitte 38l, 38r einen Verstärkungsabschnitt 43 aufweisen, der entsprechend dicker ausgebildet ist, z.B. mit einer Dicke im Bereich von ungefähr 3 mm bis ungefähr 5 mm, während das Kopplungselement 16 in den übrigen Abschnitten, z.B. in den distaleren Bereichen der Armabschnitte 26l, 26r und dem verbleibenden Zentralabschnitt 24, nur mit einer Blechdicke von ungefähr 2 mm vorgesehen ist, so dass noch immer die notwendige Stabilität sichergestellt ist.The coupling member 16 is integrally formed of a metal casting, e.g. a steel casting formed. Preferably, the coupling element is at least in the region of the grooves 30l, 30r or / and in the region of the lower edge portions 38l, 38r of the arm portions 26l, 26r of sufficient material thickness to increase the contact surface between the pins 31l, 31 r and the grooves 30l, 30r so that the frictional forces between these elements are reduced and wear is reduced. Accordingly, the coupling element 16 in the region of the grooves 30l, 30r or the edge portions 38l, 38r may have a reinforcing portion 43, which is correspondingly thicker, e.g. with a thickness in the range of about 3 mm to about 5 mm, while the coupling element 16 in the remaining sections, e.g. is provided in the more distal regions of the arm portions 26l, 26r and the remaining central portion 24, only with a sheet thickness of about 2 mm, so that still the necessary stability is ensured.

Alternative könnte das Kopplungselement 16 aus einem Blech konstanter Dicke im Bereich von ungefähr 3 mm bis ungefähr 5 mm gebildet sein. Wird der Gewichtsreduzierung Vorrang vor den Reibungseigenschaften eingeräumt, so kann ein stabiles Kopplungselement jedoch auch mit einer durchgehenden Blechdicke von ungefähr 2 mm vorgesehen werden. Anzumerken ist ferner, dass ein Abstand y zwischen den äußeren Befestigungspunkten 18l, 18r im Ausführungsbeispiel ungefähr 60 mm beträgt, während der Abstand zwischen den Stiften 31l 31r bzw. den zugeordneten Nuten 30l, 30r ungefähr bei 20 mm liegt. Damit liegen die äußeren Befestigungspunkte 18l, 18r deutlich weiter entfernt von der Schuhmittellinie M als die Stifte 31l, 31r und können somit für die Befestigung des Kopplungselements 16 wesentlich längere Hebel nutzen als die Stifte 31l, 31r zur Einleitung der Kräfte. Dies reduziert somit deutlich die von den äußeren Befestigungspunkten 18l, 18r aufzunehmende Haltekraft bei Ausübung einer Kraft von den Stiften 311, 31r auf das Kopplungselement 16, so dass ein Lockern oder gar Herausbrechend des Kopplungselements 16 aus dem Sohlenabschnitt 14 auch bei starker Beanspruchung kaum möglich ist.Alternatively, the coupling element 16 could be formed of a sheet of constant thickness in the range of about 3 mm to about 5 mm. If weight reduction is given priority over the friction characteristics, however, a stable coupling element can also be provided with a continuous sheet thickness of approximately 2 mm. It should also be noted that a distance y between the outer attachment points 18l, 18r in the exemplary embodiment is approximately 60 mm, while the distance between the pins 31l 31r and the associated grooves 30l, 30r is approximately 20 mm. Thus, the outer attachment points 18l, 18r are significantly farther away from the shoe center line M than the pins 31l, 31r and thus can use much longer levers for the attachment of the coupling element 16 than the pins 31l, 31r for introducing the forces. This thus significantly reduces the holding force to be absorbed by the outer attachment points 18l, 18r when a force is exerted by the pins 311, 31r on the coupling element 16, so that loosening or even breaking out of the coupling element 16 from the sole section 14 is hardly possible even under heavy load ,

Nachfolgend wird die Funktionweise des Schuhs 10 mit dem Kopplungselement 16 gemäß dem Ausführungsbeispiel der Erfindung erläutert. Zum Einsteigen in die Bindung wird der Skischuh 10 oberhalb der Stifte 31l, 31r der Bindung positioniert und in etwa vertikaler Richtung abgesenkt, wobei die Stifte 31l, 31r durch entsprechende schlitzförmige Aussparungen 44l, 44r im Sohlenabschnitt 14, welche sich nach unten zur Sohle 46 des Skischuhs 10 hin öffnen, eintreten. Die Stifte 31l, 31r gelangen dann bei weiterer Abwärtsbewegung des Fersenbereichs des Skischuhs 10 in Anlagekontakt mit den Einweisungsschrägen 34l, 34r und werden von diesen auseinander gedrückt. Die Spreizung der Stifte 31l, 31r erfolgt gegen den Widerstand einer elastischen Einrichtung des Fersenautomaten (nicht dargestellt), weicher mit einer der Auslösekraft entsprechenden Federkraft die Stifte 31l, 31r aufeinander zu spannt. Nach Überwindung der Auslösevorsprünge 32l, 32r schnappen die Stifte 31l, 31r in die Nuten 30l, 30r ein, so dass der Eingriff zwischen Skischuh 10 und Fersenautomat nunmehr vollständig hergestellt ist. Die vorderen Enden der Stifte 31l, 31r befinden sich dann in Kopplungslöchern 48l, 48r, weiche fluchtend mit den Nuten 30l, 30r im hinteren Fersenbereich des Sohlenabschnitts 14 des Skischuhs 10 ausgebildet sind und nach unten erweitert sind, um in die Einführungsschlitze 44l, 44r überzugehen. Skischuh 10 und Skibindung befinden sich nun in Abfahrtsstellung.Hereinafter, the operation of the shoe 10 will be explained with the coupling element 16 according to the embodiment of the invention. For entering the binding, the ski boot 10 is positioned above the pins 31l, 31r of the binding and lowered in an approximately vertical direction, the pins 31l, 31r passing through respective slot-shaped recesses 44l, 44r in the sole portion 14 which descend towards the sole 46 of the sole Open ski boot 10, enter. The pins 31l, 31r then come in further downward movement of the heel portion of the ski boot 10 in abutting contact with the Einweisungsschrägen 34l, 34r and are pressed apart by them. The spreading of the pins 31l, 31r takes place against the resistance of an elastic device of the automatic heel unit (not shown), softer with a spring force corresponding to the release force, the pins 31l, 31r tensioning each other. After overcoming the trigger projections 32l, 32r, the pins 31l, 31r snap into the grooves 30l, 30r, so that the engagement between the ski boot 10 and heel automaton is now completely established. The front ends of the pins 31l, 31r are then located in coupling holes 48l, 48r, which are in alignment with the grooves 30l, 30r in the rear heel region of the sole portion 14 of FIG Ski boot 10 are formed and are extended down to pass into the insertion slots 44l, 44r. Ski boot 10 and ski binding are now in downhill position.

Während der funktionsgemäßen Beanspruchung des Skischuhs 10 und der Bindung, insbesondere während der Talabfahrt, hält die Skibindung den Skischuh 10 über die Stifte 31l, 31r fest am Ski, wobei entsprechende Kräfte über die Stifte 31l, 31r und das Kopplungselement 16 in den Skischuh 10 eingeleitet werden. Durch die Befestigungsstruktur gemäß dem Ausführungsbeispiel der Erfindung werden diese Kräfte unter Ausnutzung von Hebeleffekten und einer Verteilung der Krafteinleitungspunkte optimal in den Fersenbereich des Skischuhs 10 eingeleitet, so dass das Kopplungselement 16 stabil am Skischuh 10 gehalten werden kann.During functional use of the ski boot 10 and the binding, in particular during the descent, the ski binding holds the ski boot 10 firmly on the ski via the pins 31l, 31r, corresponding forces being introduced into the ski boot 10 via the pins 31l, 31r and the coupling element 16 become. By virtue of the fastening structure according to the exemplary embodiment of the invention, these forces are optimally introduced into the heel region of the ski boot 10 by utilizing lever effects and a distribution of the force introduction points, so that the coupling element 16 can be held stably on the ski boot 10.

Übersteigt eine zwischen Skischuh 10 und Fersenautomat wirkende Kraft, beispielsweise während eines Sturzes, eine vorbestimmte Auslöseschwelle (nach Maßgabe der Größe der zwischen den Stiften 31l, 31r wirkenden elastischen Kraft), so gleiten die Stifte 31l, 31r aus den Nuten 30l, 30r heraus über die Auslösevorsprünge 32l, 32r hinweg, so dass das Kopplungselement 16 nach oben von den Stiften 31l, 31r abgezogen wird und der Fersenbereich des Skischuhs 10 freigegeben wird.When a force acting between ski boot 10 and heel counter exceeds a predetermined release threshold (for example, during a fall), according to the magnitude of the elastic force acting between pins 31l, 31r, the pins 31l, 31r slide out of the slots 30l, 30r the trip projections 32l, 32r, so that the coupling member 16 is pulled up from the pins 31l, 31r and the heel portion of the ski boot 10 is released.

Die vorliegende Erfindung ist nicht auf das vorstehend genannten Ausführungsbeispiel beschränkt. So ist die Verwendung anderer Befestigungsprinzipien denkbar. Alternativ könnte natürlich an dem zentralen Befestigungspunkt eine Befestigung mittels Presssitz vorgesehen sein. Weitere an sich bekannte Befestigungsprinzipien wie etwa Klebebefestigung oder Schellenbefestigung, sind ebenfalls denkbar.The present invention is not limited to the above-mentioned embodiment. Thus, the use of other attachment principles is conceivable. Alternatively, of course, an attachment by means of press fit could be provided at the central attachment point. Other known attachment principles such as adhesive attachment or clamp attachment, are also conceivable.

Claims (13)

  1. Ski boot (10) comprising a shaft portion (12) and a sole portion (14), a coupling element (16) being fastened to the sole portion (14) in a heel region of the sole portion (14), the coupling element (16) comprising:
    fastening means (18l, 18r, 20) for fastening the coupling element (16) to the heel region of the ski boot (10),
    two contact portions (30l, 30r) arranged on either side of a vertical boot centre plane (E) extending in the longitudinal direction of the boot, which contact portions are configured so that pins (31l, 31 r) projecting forwards from an automatic heel mechanism of a ski binding bear in a downhill position of the ski binding on the contact portions (30l, 30r), and so that the pins (31l, 31 r) slide off the contact portions (30l, 30r) in the event of a fall release of the ski binding (10) once a release force acting on the ski boot has been overcome,
    the fastening means (18l, 18r, 20) comprising a central fastening point (20), which is arranged between the two contact portions (30l, 30r), and
    the coupling element (16) having a central portion (24) on which the central fastening point (20) is arranged,
    the fastening means (18l, 18r, 20) further comprising two outer fastening points (18l, 18r), which are arranged laterally outside the contact portions (30l, 30r) with regard to the boot centre plane (E),
    the coupling element (16) having two arm portions (26l, 26r) extending laterally outwards with regard to the boot centre plane (E), which arm portions each extend towards the outer fastening points (18l, 18r),
    the arm portions (26l, 26r) extending out from the central portion (24) substantially in mutually opposing directions, and
    the arm portions (26l, 26r) extending outwards in the manner of wings above the contact portions (30l, 30r),
    characterised in that the fastening means have a through-opening or a peg projecting towards the boot on at least one of the two outer fastening points (18l, 18r).
  2. Ski boot (10) according to claim 1, characterised in that the contact portions (30l, 30r) are arranged on opposing lateral edge portions of the central portion (24) and each have a groove (30l, 30r) for receiving a pin (31l, 31r) of the automatic heel mechanism.
  3. Ski boot (10) according to either claim 1 or claim 2, characterised in that the outer fastening points (18l, 18r) are arranged in widened end portions (42l, 42r) of the arm portions (26l, 26r), preferably in downwardly widened end portions (42l, 42r) of the arm portions (26l, 26r).
  4. Ski boot (10) according to any of the preceding claims, characterised in that the coupling element (16) has a substantially arcuate shape conforming to the heel region of the ski boot (10).
  5. Ski boot (10) according to any of the preceding claims, characterised in that the coupling element (16) has at least one peg (36l, 36r) projecting on the boot side, which peg is inserted into a hole in the heel region of the ski boot (10) for fastening the coupling element (16) to the ski boot (10).
  6. Ski boot (10) according to any of the preceding claims, characterised
    in that the coupling element is held on the central fastening point by means of a screw connection and is held on the two outer fastening points only by in each case at least one projecting peg, which is inserted into a hole in the ski boot, or
    in that the coupling element is held on the central fastening point only by at least one peg projecting on the boot side, which is inserted into a hole in the ski boot and is held on the two outer fastening points in each case by means of a screw connection.
  7. Ski boot (10) according to any of the preceding claims, characterised in that coupling holes (48l, 48r) are formed in the heel region of the ski boot (10) in alignment with the two contact portions (30l, 30r) of the coupling element (16), which coupling holes are configured to engage pins (31l, 31r) projecting forwards from an automatic heel mechanism of a ski binding and bearing on the contact portions (30l, 30r).
  8. Coupling element (16) for a ski boot (10) comprising
    fastening means (18l, 18r, 20) for fastening the coupling element (16) to a heel region of a ski boot (10),
    two contact portions (30l, 30r) arranged either side of a vertical boot centre plane (E) extending in the longitudinal direction of the boot, which contact portions are configured so that pins (31l, 31r) projecting forwards from an automatic heel mechanism of a ski binding bear in a downhill position of the ski binding on the contact portions (30l, 30r), and so that the pins (31l, 31r) slide off the contact portions (30l, 30r) in the event of a fall release of the ski binding (10) once a release force acting on the ski boot has been overcome,
    the fastening means (18l, 18r, 20) comprising a central fastening point (20) which is arranged between the two contact portions (30l, 30r), and
    the coupling element (16) having a central portion (24), on which the central fastening point (20) is arranged, which is formed by a hole arranged concentrically to the boot centre plane (E) for receiving a central fastening screw (28),
    the coupling element (16) having at least one peg (36l, 36r) projecting on the boot side, which is configured to be inserted into a hole in the heel region of the ski boot (10) when the coupling element (16) is fastened to the ski boot (10), and
    the coupling element (16) being formed integrally from a metal casting,
    the fastening means (18l, 18r, 20) further comprising two outer fastening points (18l, 18r) which are arranged laterally outside the contact portions (30l, 30r) with regard to the boot centre plane (E),
    the coupling element (16) having two arm portions (26l, 26r) extending laterally outwards with regard to the boot centre plane (E), which arm portions each extend towards the outer fastening points (18l, 18r), and
    the arm portions (26l, 26r) extending out from the central portion (24) substantially in mutually opposing directions, and
    the arm portions (26l, 26r) extending outwards in the manner of wings above the contact portions (30l, 30r),
    characterised in that the fastening means have a through-opening or a peg projecting towards the boot on at least one of the two outer fastening points (18l, 18r).
  9. Coupling element (16) according to claim 8, characterised in that the coupling element (16) has a central portion (24) on which the central fastening point (20) is arranged, the contact portions (30l, 30r) being arranged on opposing lateral edge portions of the central portion (24) and each comprising a groove (30l, 30r) for receiving a pin (31l, 31r) of the automatic heel mechanism.
  10. Coupling element (16) according to either claim 8 or claim 9, characterised in that the outer fastening points (18l, 18r) are arranged in widened end portions (42l, 42r) of the arm portions (26l, 26r), preferably in downwardly widened end portions (42l, 42r) of the arm portions (26l, 26r).
  11. Coupling element (16) according to any of claims 8 to 10, characterised in that the fastening means have a through-opening on at least one of the fastening points (18l, 18r, 20).
  12. Coupling element (16) according to any of claims 8 to 11, characterised in that a distance (y) between the outer fastening points (18l, 18r) is greater than approximately 20 mm, preferably greater than approximately 40 mm, particularly preferably greater than approximately 60 mm.
  13. Coupling element (16) according to any of claims 8 to 12, characterised in that the coupling element (16) is made from a metal casting and has a thickness, at least in the region of its contact portions (30l, 30r) and/or above the contact portions, which is greater than approximately 2.5 mm, preferably between approximately 3.5 mm and approximately 4.5 mm.
EP11177957.5A 2010-08-18 2011-08-18 Coupling element for a ski shoe and ski shoe Active EP2420306B1 (en)

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DE102010039475.0A DE102010039475B4 (en) 2010-08-18 2010-08-18 Coupling element for a ski boot and ski boot

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EP2420306B1 true EP2420306B1 (en) 2016-03-02

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DE102010039475B4 (en) 2022-01-20
DE202010018184U1 (en) 2014-07-23
DE102010039475A1 (en) 2012-02-23
US20120042542A1 (en) 2012-02-23
EP2420306A1 (en) 2012-02-22

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