EP0319714B1 - Bracket for ski-bindings - Google Patents

Bracket for ski-bindings Download PDF

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Publication number
EP0319714B1
EP0319714B1 EP88118463A EP88118463A EP0319714B1 EP 0319714 B1 EP0319714 B1 EP 0319714B1 EP 88118463 A EP88118463 A EP 88118463A EP 88118463 A EP88118463 A EP 88118463A EP 0319714 B1 EP0319714 B1 EP 0319714B1
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EP
European Patent Office
Prior art keywords
bores
base plate
guide rail
ski
bore
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP88118463A
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German (de)
French (fr)
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EP0319714A1 (en
Inventor
Hubert Würthner
Karl Stritzl
Franz Luschnig
Roland Erdei
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TMC Corp
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TMC Corp
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    • 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

Definitions

  • the invention relates to a ski binding according to the first part of claim 1.
  • the position body is thus held directly on the guide rail (called “base plate” in the publication) and secured against shifting during transport.
  • the fastening screws are held in bores in the base plate of this ski binding by radial projections.
  • screwing in is cumbersome in many cases; in the first case the under projections must be overcome by pressure, in the second case the screwing-in can only be done in sections because the screws with their threaded sections protrude considerably from the base plate before the screwing process.
  • ski binding which is already equipped with fastening screws during its manufacture, can be found in DE-C-2359489.
  • This ski binding has four bearing blocks, called “flanges” in the patent, which are arranged on a guide rail to be fastened to the ski, called “base plate” in the patent. There are holes in the flanges that run perpendicular to the top of the ski.
  • the jaw body itself is fastened on a base plate, in the patent "area designed as a sliding guide", which is guided between the bearing blocks so as to be adjustable and lockable.
  • Bush-shaped holding elements made of plastic, sheet metal or another deformable material are used in the bores of the bearing blocks. Then the fastening screws are screwed in, the holding elements being slightly deformed.
  • the mounting screws are longer than the height of the pedestals; thus they protrude with their upper ends over the bearing blocks before assembly and protrude somewhat under the plate with their lower ends.
  • This design has the disadvantage that the holding elements have to be manufactured separately and then inserted into the bores of the bearing blocks.
  • the known design is therefore expensive and time-consuming to manufacture.
  • each tube has a flange, the inner wall of which has a helical lip.
  • a funnel-shaped trough is formed above the curtain, which serves to hold the thread of the individual fastening screws.
  • each tube has at least two vertical slots at its lower end. To screw in the fastening screw, its head diameter is smaller than the inside diameter of the individual pipes.
  • This known embodiment has the disadvantage that an additional component, namely the cross handle with four tubes, must be used, furthermore that this component is designed as a one-way aid.
  • the use of the cross handle is too expensive for this purpose.
  • the individual fastening screws in the individual tubes must be operated, which manipulation is cumbersome.
  • the invention has for its object to provide a jaw for ski bindings, in which the screws required for attaching the jaws to the ski are reliably held in place in the base plate of the jaws before assembly without the use of additional holding elements.
  • this object is achieved according to the invention by the features of the characterizing part of claim 1.
  • the mounting screws can be inserted directly into the holes in the base plate before mounting the guide rail on the ski and can be fixed in the holes by means of an interference fit, these are reliably held in place in the holes during transport. This can be further supported if the walls of the bores are provided with a lateral slot, which provides a certain resilient mounting.
  • the fastening screws are screwed in, both a torque and an axial force are simultaneously applied to them, so that the heads of the individual screws also perform a screw movement. The two types of movement quickly overcome the friction at rest and each fastening screw is screwed into the ski through the associated hole in the guide rail.
  • the upper limit values can advantageously be used in the case of a base plate provided with side slots.
  • the measure of claim 4 ensures an elastic holder for the individual fastening screws through the base plate itself.
  • the feature of claim 5 ensures an unimpeded displacement of the base plate relative to the guide rail and at the same time avoids an inclined position of the fastening screws in their bores.
  • the feature of claim 8 has the purpose of preventing the ingress of snow and dirt into the base plate.
  • Fig. 1 is a side view of the ski binding, the base plate of which is drawn in section in the area of the fastening screws.
  • 2 and 3 are side views on a larger scale partly. in section through the base plate along the line II-II or III-III in Fig. 1.
  • Fig. 4 is a section along the line IV-IV in Fig. 1.
  • Fig. 5 shows a second embodiment in front view of the base plate .
  • a heel holder is shown as a ski binding, which is designated in its entirety with 1.
  • the heel holder 1 consists of a base plate 2 and of a known, known per se body 3, which is shown only schematically in FIG. 1.
  • the base plate 2 projects laterally beyond the cheek body 3 transversely to the longitudinal direction of the ski (see FIG. 4).
  • 4 stepped bores are cut out as bores, which widen downwards.
  • 4a is a constriction located at the upper end of the stepped bore 4.
  • the base plate 2 is guided on a guide rail 5, in which holes 6 are punched out in pairs, which serve for the passage of fastening screws 7.
  • the holes 6 are in cup-shaped, downwardly projecting lugs 8 of the guide rail 5. These lugs 8 are intended to receive the heads 7a of the fastening screws 7 when the guide rail 5 is already screwed onto the ski 9 by them.
  • the fastening screws 7 are preferably Phillips screws which have a conical threaded section 7b.
  • the length of the fastening screws 7 is shorter than the length of the individual stepped bores 4 between the constriction 4 a and the mouth on the underside of the base plate 2.
  • each fastening screw 7 rests with the end face of its head 7a on the constriction 4a of the stepped bore 4.
  • the region of the bore 4 adjoining the constriction 4a has a cylindrical section 4b and a conical section 4c adjoining this.
  • the fastening screw 7 is inserted from the underside of the base plate 2 with its head 7a ahead into the stepped bore 4.
  • the upper section 4b of the stepped bore 4 holds the cylindrical outer surface of the head 7a of each fastening screw 7 by friction, and the entire fastening screw 7 is located within the base plate 2.
  • the section 4b of the stepped bore 4 has a 0, 05-0.5 mm smaller diameter than the head 7a of the fastening screw 7.
  • the base plate 2 Before the screwing-in process, the base plate 2 is first brought into the position opposite the guide rail 5 in which the holes 6 are aligned with the stepped bores 4. In this position, the base plate 2 is held relative to the guide rail 5 by a not shown, known locking device. Then the guide rail 5 and the base plate 2 with the jaw body 3 existing unit placed on the ski 9 so that the fastening screws 7 are aligned with the holes 9a previously made in the ski 9.
  • a screwdriver is inserted into the cross slot of the fastening screw 7, and the fastening screw 7 is screwed into the hole 9a of the ski by rotating and axially compressing the friction of the screw head 7a against the wall of the stepped hole 4 (see FIG. 3).
  • the screw head 7a is located entirely below the underside of the base plate 2, in the present case in the cup-shaped extension 8, so that the base plate 2 can be moved along the guide rail 5 without being moved as soon as the locking device (not shown) is released .
  • the second embodiment according to FIG. 5 differs from that previously described in that the base plate 2 'is provided with slots 2'a in the region of the stepped bores 4'. Through these slots 2'a an additional suspension for holding the fastening screws 7 is brought about.
  • that section of the stepped bore 4 in which the screw head is held can have a diameter that is up to 0.5 mm smaller than the head of the fastening screw 7.
  • the invention is not limited to the embodiment shown in the drawing and described above. Rather, various modifications thereof are possible without leaving the scope of the invention.
  • the head of the fastening screw does not have to be held with its entire surface by the wall of the bore during the holding process. Rather, it is sufficient if
  • three ribs for example, are arranged uniformly distributed on the circumference of the bore and extend in the direction of the bore axis.
  • Another solution is characterized in that, below the step of the stepped bore, an annular bead protrudes inwards according to the invention, which comes to rest on the cylindrical surface of the head of the fastening screw when it is to be held.

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  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Moving Of Heads (AREA)
  • Secondary Cells (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Connection Of Plates (AREA)
  • Toys (AREA)
  • Railway Tracks (AREA)

Abstract

This bracket can be displaced with its base plate along a guide rail which is to be attached to the ski and it can be fixed. The guide rail can be attached to the ski by means of attachment screws which penetrate holes in the rail. In order to simplify the assembly of the bracket, provision is made for bore holes (4) to be recessed in the base plate (2), which extend perpendicular to the upper side of the base plate and have in each case a diameter which is slightly smaller than the diameter of the heads (7a) of the attachment screws (7) to be received, the bore holes (4) being in alignment with the holes (6) in the rail in a predetermined position of the base plate (2) in relation to the rail (5). In this case, the attachment screws (7) are retained by means of their heads (7a) directly in the bore holes (4) of the base plate (2), which is carried out at the factory. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Skibindung gemäß dem ersten Teil des Anspruches 1.The invention relates to a ski binding according to the first part of claim 1.

Eine derartige Skibindung ist in der AT-B-385.417 beschrieben. Bei dieser Vorrichtung werden zur Befestigung ihres Lagerkörpers an der Skioberseite Senkkopfschrauben herangezogen, die jeweils praktisch nur mit einer Kante an der Wand der im Lagerkörper ausgesparten Bohrungen anliegen. Es ist daher möglich, daß sich die Senkkopfschrauben beim Einsetzen innerhalb der Bohrungen im Lagerkörper schrägstellen, was einem ordnungsgemäßen Einschrauben hinderlich ist. Diese Schrägstellungen können verhindert werden, wenn gemäß weiteren Ausführungsformen dieser Druckschrift zur Halterung der Schrauben in den Bohrungen des Lagerkörpers Buchsen oder scheibenförmige Elemente eingesetzt oder in der Führungsschiene Gewindebohrungen ausgebildet werden. Ein weiterer Nachteil des bekannten Backens ist darin gelegen, daß der Durchmesser der Aufnahmebohrung für die Befestigungsschraube über die ganze Länge der Bohrung konstant war. Während des gesamten Eindrehens der Befestigungschrauben muß daher die Reibung zwischen dem Schraubenkopf und der Bohrung überwunden werden. Dadurch erhöht sich aber das vom Monteur aufzubringende Drehmoment.Such a ski binding is described in AT-B-385.417. In this device, countersunk-head screws are used to fasten the bearing body to the top of the ski, each of which practically abuts only one edge on the wall of the holes in the bearing body. It is therefore possible that the countersunk screws incline when inserted within the holes in the bearing body, which is an obstacle to proper screwing. These inclinations can be prevented if, according to further embodiments of this document, bushings or disk-shaped elements are used to hold the screws in the bores of the bearing body or threaded bores are formed in the guide rail. Another disadvantage of the known jaws is that the diameter of the receiving bore for the fastening screw was constant over the entire length of the bore. The friction between the screw head and the hole must therefore be overcome during the entire screwing in of the fastening screws. However, this increases the torque to be applied by the installer.

Bei der bekannten Skibindung wird somit der Lagekörper unmittelbar an der Führungsschiene (in der Druckschrift "Grundplatte" genannt) gehalten und während des Transportes gegen ein Verschieben gesichert.In the known ski binding, the position body is thus held directly on the guide rail (called "base plate" in the publication) and secured against shifting during transport.

Bei einer Ausgestaltung einer Skibindung gemäß der WO 85/04695 werden die Befestigungsschrauben in Bohrungen der Grundplatte dieser Skibindung durch radiale Vorsprünge festgehalten. Beim ersten Ausführungsbeispiel werden die Köpfe der Befestigungsschrauben an ihrer Ober- und an ihrer Unterseite und beim zweiten Ausführungsbeispiel, bei dem die Köpfe der Befestigungsschrauben an konischen Abschnitten ihrer Bohrungen anliegen, nur an ihrer Oberseite durch die Vorsprünge gehalten. Dadurch ist der Verlust der Befestigungsschrauben während des Transportes in beiden Fällen unterbunden. Jedoch ist das Einschrauben in vielen Fällen umständlich; im ersten Falle müssen die unter Vorsprünge durch Druck überwunden werden, im zweiten Falle kann das Einschrauben nur absatzweise erfolgen, da die Schrauben mit ihren Gewindeabschnitten vor dem Schraubvorgang aus der Grundplatte erheblich herausragen.In a configuration of a ski binding according to WO 85/04695, the fastening screws are held in bores in the base plate of this ski binding by radial projections. In the first embodiment, the heads of the mounting screws on their top and bottom and in the second embodiment, in which the heads of the mounting screws on conical sections of their Bores are only held on their top by the projections. This prevents loss of the fastening screws during transport in both cases. However, screwing in is cumbersome in many cases; in the first case the under projections must be overcome by pressure, in the second case the screwing-in can only be done in sections because the screws with their threaded sections protrude considerably from the base plate before the screwing process.

Eine andere Skibindung, die bei ihrer Herstellung bereits mit Befestigungsschrauben ausgestattet wird, kann der DE-C-2359489 entnommen werden. Diese Skibindung besitzt vier Lagerböcke, in der Patentschrift "Flanschen" genannt, welche auf einer am Ski zu befestigenden Führungsschiene, in der Patentschrift "Grundplatte" genannt, angeordnet sind. In den Flanschen sind Bohrungen ausgespart, die senkrecht zur Skioberseite verlaufen. Der Backenkörper selbst ist auf einer Grundplatte, in der Patentschrift "als Gleitführung ausgebildeter Bereich" genannt, befestigt, die zwischen den Lagerböcken verstellbar und verrastbar geführt ist. In Bohrungen der Lagerböcke werden buchsenförmige Halteelemente aus Kunststoff, Blech oder einem anderen verformbaren Material eingesetzt. Danach werden die Befestigungsschrauben eingeschraubt, wobei die Halteelmente etwas verformt werden. Dabei sind die Befestigungsschrauben länger als die Höhe der Lagerböcke; somit stehen sie vor der Montage mit ihren oberen Enden über die Lagerböcke vor und ragen mit ihren unteren Enden etwas unter die Platte.Another ski binding, which is already equipped with fastening screws during its manufacture, can be found in DE-C-2359489. This ski binding has four bearing blocks, called "flanges" in the patent, which are arranged on a guide rail to be fastened to the ski, called "base plate" in the patent. There are holes in the flanges that run perpendicular to the top of the ski. The jaw body itself is fastened on a base plate, in the patent "area designed as a sliding guide", which is guided between the bearing blocks so as to be adjustable and lockable. Bush-shaped holding elements made of plastic, sheet metal or another deformable material are used in the bores of the bearing blocks. Then the fastening screws are screwed in, the holding elements being slightly deformed. The mounting screws are longer than the height of the pedestals; thus they protrude with their upper ends over the bearing blocks before assembly and protrude somewhat under the plate with their lower ends.

Diese Ausführung hat den Nachteil, daß die Halteelemente gesondert hergestellt und danach in die Bohrungen der Lagerböcke eingesetzt werden müssen. Die bekannte Ausführung ist daher teuer und zeitaufwendig in ihrer Herstellung.This design has the disadvantage that the holding elements have to be manufactured separately and then inserted into the bores of the bearing blocks. The known design is therefore expensive and time-consuming to manufacture.

Aus der DE-A-2732099 (vgl. Fig. 7 bis 9) ist weiters bekannt, die Befestigungsschrauben mittels eines Halteteiles anzuordnen, welcher Halteteil in Form eines Griffkreuzes ausgebildet ist, dessen die einzelnen Befestigungsschrauben aufnehmende Teilbereiche aus vertikal stehenden Rohren ausgebildet ist. An ihrem unteren Ende besitzt jedes Rohr eine Verängung, deren Innenwand eine schraubenlinienförmige Lippe aufweist. Oberhalb der Verängung ist eine trichterförmige Mulde ausgebildet, die zur Halterung des Gewindes der einzelnen Befestigungsschrauben dient. Weiters weist jedes Rohr an seinem unteren Ende zumindest zwei Vertikalschlitze auf. Zum Eindrehen der Befestigungsschraube ist deren Kopfdurchmesser kleiner als der Innendurchmesser der einzelnen Rohre.From DE-A-2732099 (see FIGS. 7 to 9) it is also known to arrange the fastening screws by means of a holding part, which holding part is designed in the form of a cross handle, the partial areas of which hold the individual fastening screws are formed from vertically standing tubes. At its lower end, each tube has a flange, the inner wall of which has a helical lip. A funnel-shaped trough is formed above the curtain, which serves to hold the thread of the individual fastening screws. Furthermore, each tube has at least two vertical slots at its lower end. To screw in the fastening screw, its head diameter is smaller than the inside diameter of the individual pipes.

Diese bekannte Ausführung hat den Nachteil, daß ein zusätzlicher Bauteil, nämlich das Griffkreuz mit vier Rohren verwendet werden muß, weiters daß dieser Bauteil als eine Einweghilfe ausgestaltet ist. Für diesen Zweck ist die Verwendung des Griffkreuzes zu aufwendig. Außerdem müssen die einzelnen Befestigungsschrauben in den einzelnen Rohren betätigt werden, welche Manipulation umständlich ist.This known embodiment has the disadvantage that an additional component, namely the cross handle with four tubes, must be used, furthermore that this component is designed as a one-way aid. The use of the cross handle is too expensive for this purpose. In addition, the individual fastening screws in the individual tubes must be operated, which manipulation is cumbersome.

Gemäß der US-A-4,640.524 sind in jenem Bauteil, welcher zur Aufnahme der Befestigungsschraube vor der Montage dieses Bauteiles dient in einem Abstand zueinander elastische Fortsätze vorgesehen, an denen der Kopf der Befestigungsschraube gehalten werden kann. Somit ist die Herstellung dieser bekannten Halterung einer Aufnahmestelle gegenüber, welche eine durchgehende glatte Innenwand hat, arbeits- und kostenaufwendiger.According to US-A-4,640,524, in that component which serves to receive the fastening screw before the assembly of this component, elastic extensions are provided at a distance from one another, on which the head of the fastening screw can be held. Thus, the production of this known holder a receiving point, which has a continuous smooth inner wall, is more labor and cost.

Die Erfindung stellt sich die Aufgabe, einen Backen für Skibindungen zu schaffen, bei dem die zum Befestigen des Backens auf dem Ski erforderlichen Schrauben vor der Montage ohne Verwendung von zusätzlichen Halteelementen in der Grundplatte des Backens selbst zuverlässig festgehalten werden.The invention has for its object to provide a jaw for ski bindings, in which the screws required for attaching the jaws to the ski are reliably held in place in the base plate of the jaws before assembly without the use of additional holding elements.

Ausgehend von einem Backen der eingangs genannten Art wird diese Aufgabe erfindungsgemäß durch die Merkmale des kennzeichnenden Teiles des Anspruches 1 gelöst. Dadurch, daß die Befestigungsschrauben vor der Montage der Führungsschiene auf dem Ski unmittelbar in die Bohrungen der Grundplatte einsetzbar und mittels ihrer Köpfe in den Bohrungen durch Preßsitz fixierbar sind, werden diese während des Transportes in den Bohrungen zuverlässig festgehalten. Dies kann noch dadurch unterstützt werden, wenn die Wände der Bohrungen mit einem seitlichen Schlitz versehen sind, wodurch eine gewisse federnde Halterung gegeben ist. Bei Einschrauben der Befestigungsschrauben werden auf diese gleichzeitig sowohl ein Drehmoment als auch eine axiale Kraft aufgebracht, so daß auch die Köpfe der einzelnen Schrauben eine Schraubenbewegung ausführen. Durch die beiden Arten der Bewegung wird somit die im Ruhezustand vorhandene Reibung schnell überwunden, und jede Befestigungsschraube wird durch das zugehörige Loch in der Führungsschiene in den Ski eingeschraubt.Starting from a baking of the type mentioned above, this object is achieved according to the invention by the features of the characterizing part of claim 1. As a result of that the mounting screws can be inserted directly into the holes in the base plate before mounting the guide rail on the ski and can be fixed in the holes by means of an interference fit, these are reliably held in place in the holes during transport. This can be further supported if the walls of the bores are provided with a lateral slot, which provides a certain resilient mounting. When the fastening screws are screwed in, both a torque and an axial force are simultaneously applied to them, so that the heads of the individual screws also perform a screw movement. The two types of movement quickly overcome the friction at rest and each fastening screw is screwed into the ski through the associated hole in the guide rail.

Dabei hat es sich als besonders vorteilhaft erwiesen, wenn das Merkmal des Anspruches 2 verwirklicht wird. Die oberen Grenzwerte können dabei vorteilhaft bei einer mit seitlichen Schlitzen versehenen Grundplatte verwendet werden.It has proven to be particularly advantageous if the feature of claim 2 is realized. The upper limit values can advantageously be used in the case of a base plate provided with side slots.

An sich wäre die Verwendung einer Durchgangsbohrung denkbar. In der Praxis hat sich aber die Konstruktion nach Anspruch 3 als besonders vorteilhaft erwiesen, da durch die ringförmige Verengung der Stufenbohrung das Einsetzen jeder Befestigungsschraube erleichtert wird.In itself, the use of a through hole would be conceivable. In practice, however, the construction according to claim 3 has proven to be particularly advantageous since the insertion of each fastening screw is facilitated by the annular narrowing of the stepped bore.

Durch die Maßnahme des Anspruches 4 wird eine elastische Halterung für die einzelnen Befestigungsschrauben durch die Grundplatte selbst gewährleistet.The measure of claim 4 ensures an elastic holder for the individual fastening screws through the base plate itself.

Das Merkmal des Anspruches 5 gewährleistet ein ungehindertes Verschieben der Grundplatte relativ zur Führungsschiene und vermeidet gleichzeitig eine Schrägstellung der Befestigungsschrauben in ihren Bohrungen.The feature of claim 5 ensures an unimpeded displacement of the base plate relative to the guide rail and at the same time avoids an inclined position of the fastening screws in their bores.

In den Ansprüchen 6 und 7 werden weitere Varianten von Maßnahmen, die zum Festhalten der Befestigungsschrauben dienen, unter Schutz gestellt. Beide Lösungen haben gegenüber der eingangs behandelten Konstruktion den Vorteil einer Linienberührung, wobei gemäß Anspruch 6 die Freigabe der Befestigungsschrauben u.U. stetig erfolgen kann, gemäß Anspruch 7 hingegen schlagartig auftritt.In claims 6 and 7, further variants of measures that serve to hold the fastening screws are protected. Both solutions have the advantage of a line contact compared to the construction discussed at the outset, whereby according to claim 6 the release of the fastening screws may possibly. can occur continuously, however, suddenly occurs according to claim 7.

Schließlich hat das Merkmal des Anspruches 8 den Zweck, ein Eindringen von Schnee und Schmutz in die Grundplatte zu unterbinden.Finally, the feature of claim 8 has the purpose of preventing the ingress of snow and dirt into the base plate.

In der Zeichnung sind zwei beispielsweise Ausführungen einer erfindungsgemäßen Skibindung wiedergegeben. Fig. 1 ist eine Seitenansicht der Skibindung, wobei deren Grundplatte im Bereich der Befestigungsschrauben im Schnitt gezeichnet ist. Die Fig. 2 und 3 sind Seitenansichten in größerem Maßstab z.T. im Schnitt durch die Grundplatte nach der Linie II-II bzw. III-III in Fig. 1. Fig. 4 ist ein Schnitt entlang der Linie IV-IV in Fig. 1. Fig. 5 zeigt ein zweites Ausführungsbeispiel in Vorderansicht auf die Grundplatte.In the drawing, two examples of a ski binding according to the invention are shown. Fig. 1 is a side view of the ski binding, the base plate of which is drawn in section in the area of the fastening screws. 2 and 3 are side views on a larger scale partly. in section through the base plate along the line II-II or III-III in Fig. 1. Fig. 4 is a section along the line IV-IV in Fig. 1. Fig. 5 shows a second embodiment in front view of the base plate .

In den Fig. 1 ist als Skibindung ein Fersenhalter dargestellt, der in seiner Gesamtheit mit 1 bezeichnet ist. Der Fersenhalter 1 besteht aus einer Grundplatte 2 und aus einem an dieser befestigten, an sich bekannten Bakkenkörper 3, der in Fig. 1 nur schematisch dargestellt ist. Bei Betrachtung von oben ragt die Grundplatte 2 quer zur Skilängsrichtung seitlich über den Backenkörper 3 vor (s. Fig. 4). In den seitlich vorragenden Bereichen der Grundplatte 2 sind als Bohrungen 4 Stufenbohrungen ausgespart, welche sich nach unten hin erweitern. 4a ist eine am oberen Ende der Stufenbohrung 4 befindliche Verengung.In Fig. 1, a heel holder is shown as a ski binding, which is designated in its entirety with 1. The heel holder 1 consists of a base plate 2 and of a known, known per se body 3, which is shown only schematically in FIG. 1. When viewed from above, the base plate 2 projects laterally beyond the cheek body 3 transversely to the longitudinal direction of the ski (see FIG. 4). In the laterally protruding areas of the base plate 2, 4 stepped bores are cut out as bores, which widen downwards. 4a is a constriction located at the upper end of the stepped bore 4.

Im montierten Zustand wird die Grundplatte 2 auf einer Führungsschiene 5 geführt, in der Löcher 6 paarweise ausgestanzt sind, welche zum Durchtritt von Befestigungsschrauben 7 dienen. Die Löcher 6 befinden sich in napfförmigen, nach unten vorspringenden Ansätzen 8 der Führungsschiene 5. Diese Ansätze 8 sind dazu bestimmt, die Köpfe 7a der Befestigungsschrauben 7 aufzunehmen, wenn die Führungsschiene 5 durch diese auf dem Ski 9 bereits festgeschraubt ist.In the assembled state, the base plate 2 is guided on a guide rail 5, in which holes 6 are punched out in pairs, which serve for the passage of fastening screws 7. The holes 6 are in cup-shaped, downwardly projecting lugs 8 of the guide rail 5. These lugs 8 are intended to receive the heads 7a of the fastening screws 7 when the guide rail 5 is already screwed onto the ski 9 by them.

Die Befestigungsschrauben 7 sind vorzugsweise Kreuzschlitzschrauben, die über einen konischen Gewindeabschnitt 7b verfügen. Die Länge der Befestigungsschrauben 7 ist kürzer als die Länge der einzelnen Stufenbohrungen 4 zwischen der Verengung 4a und der Mündung an der Unterseite der Grundplatte 2.The fastening screws 7 are preferably Phillips screws which have a conical threaded section 7b. The length of the fastening screws 7 is shorter than the length of the individual stepped bores 4 between the constriction 4 a and the mouth on the underside of the base plate 2.

Vor der Montage der Führungsschiene 5 nehmen die Befestigungsschrauben, 7 die in Fig. 2 dargestellte Lage ein, in der jede Befestigungsschraube 7 mit der Stirnseite ihres Kopfes 7a an der Verengung 4a der Stufenbohrung 4 anliegt. Der an die Verengung 4a anschließende Bereich der Bohrung 4 hat einen zylindrischen Abschnitt 4b und einen an diesen anschließenden konischen Abschnitt 4c.Before the assembly of the guide rail 5, the fastening screws 7 assume the position shown in FIG. 2, in which each fastening screw 7 rests with the end face of its head 7a on the constriction 4a of the stepped bore 4. The region of the bore 4 adjoining the constriction 4a has a cylindrical section 4b and a conical section 4c adjoining this.

Die Befestigungsschraube 7 wird von der Unterseite der Grundplatte 2 mit ihrem Kopf 7a voran in die Stufenbohrung 4 eingeschoben. Dabei hält der obere Abschnitt 4b der Stufenbohrung 4 die zylindrische Mantelfläche des Kopfes 7a jeder Befestigungsschraube 7 durch Reibungsschluß fest, und die ganze Befestigungsschraube 7 befindet sich innerhalb der Grundplatte 2. Um einen Reibungsschluß herbeizuführen, besitzt der Abschnitt 4b der Stufenbohrung 4 einen um 0,05-0,5 mm kleineren Durchmesser als der Kopf 7a der Befestigungsschraube 7.The fastening screw 7 is inserted from the underside of the base plate 2 with its head 7a ahead into the stepped bore 4. The upper section 4b of the stepped bore 4 holds the cylindrical outer surface of the head 7a of each fastening screw 7 by friction, and the entire fastening screw 7 is located within the base plate 2. To bring about a frictional engagement, the section 4b of the stepped bore 4 has a 0, 05-0.5 mm smaller diameter than the head 7a of the fastening screw 7.

Vor dem Einschraubvorgang wird zunächst die Grundplatte 2 in diejenige Stellung gegenüber der Führungsschiene 5 gebracht, in der die Löcher 6 mit den Stufenbohrungen 4 fluchten. In dieser Lage wird die Grundplatte 2 gegenüber der Führungsschiene 5 durch eine nicht dargestellte, an sich bekannte Rastvorrichtung festgehalten. Darauf wird die aus der Führungsschiene 5 und der Grundplatte 2 mit Backenkörper 3 bestehende Einheit so auf den Ski 9 aufgesetzt, daß die Befesstigungsschrauben 7 mit den im Ski 9 zuvor angebrachten Bohrungen 9a fluchten.Before the screwing-in process, the base plate 2 is first brought into the position opposite the guide rail 5 in which the holes 6 are aligned with the stepped bores 4. In this position, the base plate 2 is held relative to the guide rail 5 by a not shown, known locking device. Then the guide rail 5 and the base plate 2 with the jaw body 3 existing unit placed on the ski 9 so that the fastening screws 7 are aligned with the holes 9a previously made in the ski 9.

Nunmehr wird in den Kreuzschlitz der Befestigungsschraube 7 ein Schraubendreher eingeführt, und durch Drehung und axialen Druck wird die Befestigungsschraube 7 unter Überwindung der Reibung des Schraubenkopfes 7a gegenüber der Wand der Stufenbohrung 4 in die Bohrung 9a des Ski eingeschraubt (s. Fig. 3). Im eingeschraubten Zustand befindet sich der Schraubenkopf 7a zur Gänze unterhalb der Unterseite der Grundplatte 2, im vorliegenden Falle in dem napfförmigen Ansatz 8, so daß die Grundplatte 2, ohne anzuecken, entlang der Führungsschiene 5 verschoben werden kann, sobald die nicht dargestellte Rastvorrichtung gelöst ist.Now a screwdriver is inserted into the cross slot of the fastening screw 7, and the fastening screw 7 is screwed into the hole 9a of the ski by rotating and axially compressing the friction of the screw head 7a against the wall of the stepped hole 4 (see FIG. 3). In the screwed-in state, the screw head 7a is located entirely below the underside of the base plate 2, in the present case in the cup-shaped extension 8, so that the base plate 2 can be moved along the guide rail 5 without being moved as soon as the locking device (not shown) is released .

Nach Abschluß der Montage der Führungsschiene 5 können die einzelnen Stufenbohrungen 4 der Grundplatte durch Plastikdeckel 10, Gewindepfropfen od.dgl. verschlossen werden, um ein Eindringen von Schnee und Schmutz zu verhindern.After completion of the assembly of the guide rail 5, the individual stepped bores 4 of the base plate through plastic cover 10, thread plug or the like. closed to prevent snow and dirt from entering.

Die zweite Ausführungsform gemäß Fig. 5 unterscheidet sich von der zuvor beschriebenen dadurch, daß die Grundplatte 2′ im Bereich der Stufenbohrungen 4′ mit Schlitzen 2′a versehen ist. Durch diese Schlitze 2′a wird eine zusätzliche Federung zum Festhalten der Befestigungsschrauben 7 herbeigeführt. Insbesondere bei dieser Ausgestaltung kann jener Abschnitt der Stufenbohrung 4, in welchem der Schraubenkopf festgehalten ist, einen bis zu 0,5 mm kleineren Durchmesser als der Kopf der Befestigungsschraube 7 aufweisen. Der weitere Aufbau und die Betätigungsweise dieser Ausführung entsprechen den bereits beschriebenen.The second embodiment according to FIG. 5 differs from that previously described in that the base plate 2 'is provided with slots 2'a in the region of the stepped bores 4'. Through these slots 2'a an additional suspension for holding the fastening screws 7 is brought about. In this embodiment in particular, that section of the stepped bore 4 in which the screw head is held can have a diameter that is up to 0.5 mm smaller than the head of the fastening screw 7. The further structure and the mode of operation of this embodiment correspond to those already described.

Die Erfindung ist nicht auf die in der Zeichnung dargestellte und im vorstehenden beschriebene Ausführung beschränkt. Vielmehr sind verschiedene Abänderungen derselben möglich, ohne den Rahmen der Erfindung zu verlassen. Beispielsweise muß während des Haltevorganges der Kopf der Befestigungsschraube nicht mit seiner ganzen Fläche von der Wand der Bohrung festgehalten werden. Vielmehr genügt es, wenn erfindungsgemäß am Bohrungsumfang z.B. drei Rippen gleichmäßig verteilt angeordnet sind, die sich in Richtung der Bohrungsachse erstrecken. Eine andere Lösung zeichnet sich dadurch aus, daß unterhalb der Stufe der Stufenbohrung erfindungsgemäß ein Ringwulst nach innen vorspringt, welcher an der zylindrischen Manntelfläche des Kopfes der Befestigungsschraube zur Anlage kommt, wenn diese festgehalten werden soll.The invention is not limited to the embodiment shown in the drawing and described above. Rather, various modifications thereof are possible without leaving the scope of the invention. For example, the head of the fastening screw does not have to be held with its entire surface by the wall of the bore during the holding process. Rather, it is sufficient if According to the invention, three ribs, for example, are arranged uniformly distributed on the circumference of the bore and extend in the direction of the bore axis. Another solution is characterized in that, below the step of the stepped bore, an annular bead protrudes inwards according to the invention, which comes to rest on the cylindrical surface of the head of the fastening screw when it is to be held.

Claims (8)

1. A ski binding comprising a jaw assembly (3) having a base plate (2, 2′) mounted for displacement along and adapted to be locked on a guide rail (5) to be secured on a ski (9), said guide rail (5) being adapted to be secured on said ski (9) by means of mounting screws (7) extending through bores (6) of said guide rail (5), said base plate (2, 2′) being formed with bores (4, 4′) having a cylindrical configuration over a section (4b) of their length and extending perpendicular to the top face of said base plate (2, 2′), characterized in that said bores (4, 4′) are provided with a conically divergent section (4c) contiguous to said cylindrical section (4b), in that the walls of said bores (4, 4′) are optionally provided with lateral slots, further in that said mounting screws (7) have a cylindrical head (7a), and are inserted into said bores (4, 4′) prior to said guide rail (5) being mounted on said ski (9) and have the cylindrical portion of their head (7a) retained in a press fit in said cylindrical section (4b) of said bores (4, 4′), and in that in a predetermined position of said base plate (2, 2′) relative to said guide rail (5), said bores (4, 4′) of the former are in alignment with the bores (6) of the latter.
2. A ski binding according to claim 1, characterized in that the diameter of said bores (4, 4′) in said base plate (2, 2′) is 0.05 to 0.5 mm smaller than the diameter of said heads (7a) of said mounting screws (7).
3. A ski binding according to claim 1 or 2, characterized in that said bores (4, 4′) are formed as stepped bores of a downwards divergent configuration.
4. A ski binding according to any of claims 1 to 3, characterized in that said base plate (2, 2′) is made of a plastic material.
5. A ski binding according to claim 1, characterized in that the length of said bore (4, 4′), or the length, respectively, of the two sections of said stepped bore (4, 4′) between the step and the lower end is greater than of equal to the length of the individual mounting screws (7).
6. A ski binding according to any of claims 1 to 4, characterized in that each said bore, or each said stepped bore, respectively, is provided with at least one rib extending in the longitudinal direction of the bore and acting to lockingly engage the cylindrical surface, or the cylindrical section, respectively, of the head of said mounting screw prior to said guide rail being mounted.
7. A ski binding according to any of claims 1 to 4, characterized in that each said bore, or each said stepped bore, respectively, has its upper section, or its section below its step, respectively, provided with an inwards projecting annular bead acting to retain the cylindrical surface, or the cylindrical section, respectively, of the head of said mounting screw prior to said guide rail being mounted.
8. A ski binding according to any of claims 1 to 7, characterized in that each said bore (4, 4′), or stepped bore, respectively, is adapted to have its upper end closed by means of a threaded plug, a plastic cap (10) or the like after said guide rail has been mounted.
EP88118463A 1987-12-11 1988-11-05 Bracket for ski-bindings Expired - Lifetime EP0319714B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3274/87 1987-12-11
AT0327487A AT395114B (en) 1987-12-11 1987-12-11 FOR SKI BINDINGS OF SPECIFIC JAWS

Publications (2)

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EP0319714A1 EP0319714A1 (en) 1989-06-14
EP0319714B1 true EP0319714B1 (en) 1991-08-14

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EP88118463A Expired - Lifetime EP0319714B1 (en) 1987-12-11 1988-11-05 Bracket for ski-bindings

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EP (1) EP0319714B1 (en)
AT (2) AT395114B (en)
DE (1) DE3864244D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2682299B1 (en) * 1991-10-10 1993-11-26 Salomon Sa INTERFACE PLATE FOR ALPINE SKI SAFETY FASTENING.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004695A1 (en) * 1984-04-04 1985-10-24 Marker Patentverwertungsgesellschaft Mbh Ski binding with screw retaining construction
AT385417B (en) * 1986-07-15 1988-03-25 Tyrolia Freizeitgeraete DEVICE FOR ATTACHING A STORAGE OF A SKI BINDING PART ON A SKI

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH525691A (en) * 1969-07-25 1972-07-31 Hope Kk Heel holder for safety ski bindings
FR2208692B1 (en) * 1972-12-01 1976-08-20 Salomon Georges P J
FR2360385A1 (en) * 1976-08-06 1978-03-03 Beyl Jean Joseph Alfred SUPPORT FOR RETAINING THE FIXING SCREWS ON A PART INTENDED TO BE FIXED BY MEANS OF THESE
DE3525865C1 (en) * 1985-07-19 1986-08-28 TRW United-Carr GmbH, 6753 Enkenbach-Alsenborn Holding device for holding a threaded bolt

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004695A1 (en) * 1984-04-04 1985-10-24 Marker Patentverwertungsgesellschaft Mbh Ski binding with screw retaining construction
AT385417B (en) * 1986-07-15 1988-03-25 Tyrolia Freizeitgeraete DEVICE FOR ATTACHING A STORAGE OF A SKI BINDING PART ON A SKI

Also Published As

Publication number Publication date
EP0319714A1 (en) 1989-06-14
AT395114B (en) 1992-09-25
DE3864244D1 (en) 1991-09-19
ATA327487A (en) 1989-07-15
ATE66159T1 (en) 1991-08-15

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