EP0626875B1 - Machoire avant pour fixation de ski - Google Patents

Machoire avant pour fixation de ski Download PDF

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Publication number
EP0626875B1
EP0626875B1 EP94903825A EP94903825A EP0626875B1 EP 0626875 B1 EP0626875 B1 EP 0626875B1 EP 94903825 A EP94903825 A EP 94903825A EP 94903825 A EP94903825 A EP 94903825A EP 0626875 B1 EP0626875 B1 EP 0626875B1
Authority
EP
European Patent Office
Prior art keywords
sole
guide surface
roller
housing
clamp assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94903825A
Other languages
German (de)
English (en)
Other versions
EP0626875A1 (fr
Inventor
Helmut Wladar
Karl Stritzl
Andreas Janisch
Hubert Würthner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HTM Sport und Freizeitgerate GmbH
Original Assignee
HTM Sport und Freizeitgerate GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AT0253292A external-priority patent/AT399663B/de
Priority claimed from AT95193A external-priority patent/AT401235B/de
Application filed by HTM Sport und Freizeitgerate GmbH filed Critical HTM Sport und Freizeitgerate GmbH
Publication of EP0626875A1 publication Critical patent/EP0626875A1/fr
Application granted granted Critical
Publication of EP0626875B1 publication Critical patent/EP0626875B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08507—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws
    • A63C9/08521—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws pivoting about a vertical axis, e.g. side release
    • 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
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08557—Details of the release mechanism
    • A63C9/08564—Details of the release mechanism using cam or slide surface
    • 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
    • A63C9/001—Anti-friction devices

Definitions

  • the invention relates to a front jaw for a safety binding, with a housing, with two one-armed sole holders, which are pivotably mounted on a common bolt, on which bolt a spring arranged in the housing engages and loads it forward with tension, and with guide surfaces formed on both sides of the longitudinal center plane on the housing, on which the sole holders are guided so as to be supported during their pivoting movement such that essentially no additional thrust occurs on the ski boot in the direction of a heel holder from a predetermined pivoting angle.
  • Such a toe is known from DE-OS 3 720 440.
  • the bolt designated as the pivot shaft is tilted slightly forwards and the line of action of the release spring is also inclined, as a result of which a force component is determined which exerts a force pulling the sole holder downwards.
  • this measure is associated with the disadvantage of inclined installation of both the bolt and the pull rod determining the line of action of the release spring in the housing.
  • an approximately semi-cylindrical vertical guide surface is also provided on the housing, on which the sole holders are mounted with an associated counter surface.
  • the front of the ski boot is supported in this toe piece by a roller, which is arranged in the longitudinal direction of the ski behind the counter surface of each sole holder so that this roller only moves forward slightly in the longitudinal direction from a certain swivel angle when the sole holder is swung out sideways.
  • a disadvantage of this toe piece is that the above-described mounting of the sole holder on the housing causes friction losses when the side is triggered at the bearing point.
  • a front jaw of the type mentioned is also known from AT-PS 376 576.
  • the guide surfaces are flat surfaces; seen from above, they appear as a straight line that converges towards the front.
  • Each sole holder is provided with a convex counter surface which rolls on the associated guide surface when the sole holder is pivoted, the support point being pivoted of the sole holder in the sense of opening the binding migrates outwards. This is to ensure that the perpendicular to the central longitudinal axis passing through the bolt also runs through the support point on the guide surface when the sole holder is pivoted.
  • the spring becomes excessively effective when the sole holder is pivoted to a greater extent and the shoe is pushed backwards against the thrust spring of the heel holder, which adversely affects the release.
  • Other similarly constructed front jaws either have two-armed sole holders mounted on fixed axles, e.g. the AT-PS 321 170 can be removed, or they have a single sole holder, in which case a spring-loaded pull rod engaging the one-piece sole holder must be guided with lateral play.
  • each sole holder is supported on its associated guide surface by means of a front roller mounted on its front, and the guide surface has a concave curvature when viewed in plan view , wherein when pivoting the sole holder in the sense of an opening, the support point of the roller on the guide surface moves inwards.
  • the trigger characteristic can be adapted to the respective type of binding, such as child binding, adult binding, racing binding, etc., by a suitable choice of the curvature of the guide surface.
  • each guide surface has two sections with a concave curvature which adjoin one another to form a web tip facing the roll
  • the trigger characteristic can be adapted to the respective type of binding, such as children's binding, adult binding, racing binding, etc., by suitable choice of the curvature of the sections of the guide surface.
  • the slope of the tripping characteristic, the tripping force curve and the centering force of such a front jaw can be predetermined by the position of the web tip.
  • FIGS. 1 to 3 in which an exemplary embodiment of a toe piece 1 according to the invention is shown, which has a housing 2 in which an essentially vertical pin 3 along suitable, only indicated guides 4 essentially in the longitudinal center plane ⁇ of the toe piece is guided.
  • the bolt 3 is loaded via a tension piece 5 by means of a spring 6 to the front with train.
  • the preload of the spring 6, which is expediently designed as a compression spring, can be adjusted with the aid of a screw bolt 7 supported on the housing 1.
  • This bolt 7 passes through front spring support plate 8, on which the tension member 5 engages, and the spring 6 and cooperates with a threaded bore 9 of a rear spring support plate 10 together.
  • Two single-armed sole holders 11a, 11b are pivotally mounted on the bolt 3 with their inner ends.
  • these sole holders are designed in such a way that they can support and hold down the standard sole 12s of a ski boot 12 indicated by a broken line.
  • two vertically mounted support rollers 13a, b, 14a, b are mounted on the rear of each sole holder 11a, b.
  • a roller 15a, b mounted on a substantially vertical axis is provided on the front of each sole holder 11a, b.
  • Each sole holder 11a, b is supported by its front roller 15a, b on a guide surface 16a, b.
  • These guide surfaces 16a, b are formed on the housing 1 and - seen in plan view - have a concave curvature and an inner stop 17a, b for the roller 15a, b.
  • the guide surfaces are designed with radii of curvature that decrease from the outside inwards. However, they can also be essentially straight cylindrical surfaces on which the front rollers 15a, b of the sole holders 11a, b can roll.
  • Fig. 1 shows the front jaw 1 in the unused position. Due to the pressure of the spring 6 on the front end of the pull piece 5, this pulls the bolt 3 all the way forward, the two sole holders 11a, b, resting against one another, determining the rest position of the toe piece 1. Instead, of course, a stop for the inward movement of the sole holders 11a, b can be provided at another suitable location.
  • the front rollers 15a, b are in their outermost position on the guide surfaces 16a, b.
  • the front area of the standard sole 12s is supported on the support rollers 13a, b by the thrust applied by the spring of a heel holder (not shown); 14a, b, the outer support rollers 14a, b resting against the strongly curved corner roundings of the sole 12s and the inner support rollers 13a, b against the only slightly curved end edge of the sole 12s.
  • the sole holders 11a, b are now somewhat spread apart, that is to say pivoted somewhat outward about the bolt 3, and the spring 6 is already more compressed with respect to its rest position.
  • the front rollers 15a, b have migrated somewhat inwards on the guide surfaces 16a, b.
  • Fig. 3 shows the front jaw 1 at the end of the triggering process in a position in which the shoe has already been pivoted so far (to the right) that the sole holders 11a, b have practically reached their maximum pivoting position to the outside and the front rollers 15a, b almost occupy their innermost position, which is limited by the stops 17a, b.
  • the curvature of the guide surfaces 16a, b seen in plan view is selected in this exemplary embodiment such that, from a predetermined pivoting angle of the sole holder 11a, b, there is essentially no additional thrust on the ski boot in the direction of the heel holder when the sole holder is pivoted outward. This means that the function of the heel holder has a negligible influence on the triggering process on the toe piece.
  • the most expedient form of the curvature of the guide surface can be determined most easily empirically and / or graphically in this exemplary embodiment. In practice, such a course of curvature has proven itself, in which the radius of curvature of the guide surfaces 16a, b decreases from the outside inwards, as is shown in the drawing. However, even in the case of a constant curvature, that is to say a function which is entirely satisfactory in most cases with circular-cylindrical guide surfaces.
  • FIG. 4 shows a further exemplary embodiment of a toe piece according to the invention, features which in part have already been described in detail with reference to FIGS. 1 to 3 being provided with the same reference numerals, however, increased by one hundred.
  • the toe piece 101 according to the invention shown in FIG. 4 has a housing 102 in which an essentially vertical bolt 103 is guided along suitable guides 104 essentially in the longitudinal center plane ⁇ of the toe piece.
  • the bolt 103 is tensioned forward with a preselectable spring via a tension piece, not shown.
  • a single-armed sole holder 111b is pivotally mounted on the bolt 103 with its inner end symmetrical to the longitudinal center plane.
  • these sole holders are designed such that they can support and hold down the standard sole of a ski boot.
  • two vertically mounted support rollers 113b, 114b are mounted on the rear of each sole holder 111b.
  • each sole holder 111b is supported on a guide surface 116b by means of its front roller 115b.
  • This guide surface 116b is formed on the housing 101 and, seen in plan view, consists of two concavely curved sections 116b1, 116b2, which are connected to one another via a web tip S facing the roll, and an inner stop 117b for the roll 115b.
  • the web tip S is preferably somewhat rounded in order to avoid mechanical impairments.
  • the section 116b2 is formed by a straight section 116b2g, which adjoins the spell tip at a certain angle with respect to a transverse axis ⁇ , and a continuing concave section 116b2k.
  • the most expedient form of the curvature of the partial sections and the position of the web tip of the guide surface can also be determined empirically and / or graphically most easily in this exemplary embodiment. In practice, an embodiment has proven itself in which a straight section is provided towards the outside after the web tip.
  • the condition that essentially no additional thrust occurs on the ski boot in the direction of the heel holder should therefore only be met when the roller 15b has already moved inward via the web tip S.
  • an increase in the heel thrust when the tip of the shoe is deflected is therefore quite desirable in order to obtain good centering. From this point of view it is easy to understand that the web tip makes a significant contribution to an exact definition of both the triggering force and the centering force.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Clamps And Clips (AREA)

Abstract

Une mâchoire avant (1) pour une fixation de sécurité comprend un carter (2) avec deux organes de retenue (11a, 11b) de la semelle à un seul bras montés pivotant sur un boulon sensiblement vertical (3) sur lequel agit un ressort monté dans le carter (2), tirant en avant le boulon (3) guidé en ligne droite sensiblement dans le plan médian longitudinal (ε) du carter. Les deux organes de retenue (11a, 11b) de la semelle roulent sur des rouleaux antérieurs (15a, 15b) montés du côté antérieur de chaque organe de retenue (11a, 11b) de la semelle sur des surfaces de guidage (16a, 16b) concaves correspondantes, vues d'en haut, situées des deux côtés du plan médian longitudinal du carter. Dans un mode de réalisation, la surface de guidage comprend deux sections (116b1, 116b2) concaves adjacentes qui forment une pointe (S) tournée vers le rouleau (115b).

Claims (7)

  1. Mâchoire avant (1 ; 101) équipant une fixation de sécurité pour ski, comprenant un boîtier (2 ; 102) ; deux cale-semelles (11a, 11b ; 111b) à bras unique, montés pivotants sur un tourillon (3 ; 103), un ressort (6), logé dans le boîtier (2 ; 102), venant en prise avec ce tourillon et lui imposant une traction vers l'avant ; et des surfaces de guidage (16a, 16b ; 116b) prévues, sur le boîtier, des deux côtés du plan médian longitudinal (ε) et sur lesquelles les cale-semelles sont guidés, en prenant appui au cours de leur mouvement pivotant, de façon telle que, à partir d'un angle de pivotement préétabli, pour l'essentiel aucune poussée supplémentaire ne soit appliquée à la chaussure de ski en direction d'une talonnière, caractérisée par le fait que le tourillon (3 ; 103) est disposé pour l'essentiel verticalement ; par le fait que chaque cale-semelle (11a, 11b ; 111b) prend appui, au moyen d'un galet antérieur (15a, 15b ; 115b) monté à sa face antérieure, contre la surface de guidage (16a, 16b ; 116b) qui lui est associée ; et par le fait que la surface de guidage présente une courbure concave observée par-dessus, la zone d'appui du galet se décalant vers l'intérieur, sur la surface de guidage, lors d'un pivotement des cale-semelles dans le sens d'une ouverture.
  2. Mâchoire avant selon la revendication 1, caractérisée par le fait que le rayon de courbure de la surface de guidage (16a, 16b) décroît de l'extérieur vers l'intérieur.
  3. Mâchoire avant selon la revendication 1 ou 2, caractérisée par le fait que la surface de guidage (16a, 16b ; 116b) possède une butée intérieure (17a, 17b ; 117b) affectée au galet (15a, 15b ; 115b).
  4. Mâchoire avant selon l'une des revendications 1 à 3, caractérisée par le fait que les cale-semelles (11a, 11b ; 111b) possèdent, à leur face postérieure, des galets d'appui (13a, 13b, 14a, 14b ; 113b, 114b) montés verticalement et destinés à la semelle (12s) de la chaussure, chaque cale-semelle (11a, 11b, 111b) présentant des galets intérieur et extérieur (13a, 13b, 14a, 14b ; 113b, 114b) d'appui de la semelle (12s), et l'axe du galet antérieur (15a, 15b ; 115b) de chaque cale-semelle étant interposé - observé dans le sens longitudinal - entre les axes des galets d'appui (13a, 13b, 14a, 14b ; 113b, 114b) de ce cale-semelle.
  5. Mâchoire avant selon l'une des revendications 1 à 4, caractérisée par le fait que chaque surface de guidage (116b) présente deux régions (116b1, 116b2) à courbure concave, qui sont mutuellement limitrophes en formant un éperon de roulement (S) tourné vers le galet (115b).
  6. Mâchoire avant selon la revendication 5, caractérisée par le fait que l'éperon de roulement (S) est arrondi.
  7. Mâchoire avant selon la revendication 5 ou 6, caractérisée par le fait que la seconde région (116b2) de la surface de guidage (116b), qui est située davantage à l'extérieur, se rattache à l'éperon de roulement (S), observée en plan, par une région partielle rectiligne (116b2g) fusionnant ensuite dans une région partielle concave (116b2k).
EP94903825A 1992-12-21 1993-12-17 Machoire avant pour fixation de ski Expired - Lifetime EP0626875B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AT2532/92 1992-12-21
AT0253292A AT399663B (de) 1992-12-21 1992-12-21 Vorderbacken für eine sicherheitsbindung
AT951/93 1993-05-13
AT95193A AT401235B (de) 1993-05-13 1993-05-13 Vorderbacken für eine sicherheitsbindung
PCT/EP1993/003600 WO1994014510A1 (fr) 1992-12-21 1993-12-17 Machoire avant pour fixation de ski

Publications (2)

Publication Number Publication Date
EP0626875A1 EP0626875A1 (fr) 1994-12-07
EP0626875B1 true EP0626875B1 (fr) 1995-12-06

Family

ID=25594417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94903825A Expired - Lifetime EP0626875B1 (fr) 1992-12-21 1993-12-17 Machoire avant pour fixation de ski

Country Status (4)

Country Link
EP (1) EP0626875B1 (fr)
JP (1) JPH07500276A (fr)
DE (1) DE59301112D1 (fr)
WO (1) WO1994014510A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7758062B2 (en) 2006-08-25 2010-07-20 Marker Deutschland Gmbh Boot retaining unit of a ski binding

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3129536C2 (de) * 1981-07-27 1983-11-24 Geze Gmbh, 7250 Leonberg Sicherheitsskibindung
DE3905445A1 (de) * 1989-02-22 1990-08-23 Marker Deutschland Gmbh Vorderbacken fuer sicherheitsskibindungen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7758062B2 (en) 2006-08-25 2010-07-20 Marker Deutschland Gmbh Boot retaining unit of a ski binding
DE202007019436U1 (de) 2006-08-25 2012-08-09 Marker Deutschland Gmbh Schuhhalteraggregat einer Skibindung
DE202007019435U1 (de) 2006-08-25 2012-08-09 Marker Deutschland Gmbh Schuhhalteraggregat einer Skibindung
EP2540356A2 (fr) 2006-08-25 2013-01-02 MARKER Deutschland GmbH Appareil de maintient d'une fixation de ski avec double bras de maintient et un ressort common
DE102006039989B4 (de) * 2006-08-25 2015-10-08 Marker Deutschland Gmbh Schuhhalteraggregat einer Skibindung

Also Published As

Publication number Publication date
EP0626875A1 (fr) 1994-12-07
JPH07500276A (ja) 1995-01-12
WO1994014510A1 (fr) 1994-07-07
DE59301112D1 (de) 1996-01-18

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