EP0415006B1 - Mâchoire avant - Google Patents

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Publication number
EP0415006B1
EP0415006B1 EP90110416A EP90110416A EP0415006B1 EP 0415006 B1 EP0415006 B1 EP 0415006B1 EP 90110416 A EP90110416 A EP 90110416A EP 90110416 A EP90110416 A EP 90110416A EP 0415006 B1 EP0415006 B1 EP 0415006B1
Authority
EP
European Patent Office
Prior art keywords
clamp assembly
assembly according
front clamp
housing
pedal
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
EP90110416A
Other languages
German (de)
English (en)
Other versions
EP0415006A3 (en
EP0415006A2 (fr
Inventor
Karl Stritzl
Henry Freisinger
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
Application filed by HTM Sport und Freizeitgerate GmbH filed Critical HTM Sport und Freizeitgerate GmbH
Publication of EP0415006A2 publication Critical patent/EP0415006A2/fr
Publication of EP0415006A3 publication Critical patent/EP0415006A3/de
Application granted granted Critical
Publication of EP0415006B1 publication Critical patent/EP0415006B1/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
    • A63C9/08557—Details of the release mechanism
    • A63C9/08571—Details of the release mechanism using axis and lever
    • 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 toe piece according to the preamble of claim 1.
  • DE-OS 29 48 274 shows a similar toe piece which has the same disadvantage. Also with this toe piece, which has a cup-shaped sole hold-down device, the release spring is initially compressed more strongly in the case of a rotary case combined with a front drop, as a result of which the work required for pivoting the sole hold-down device to the side is reduced.
  • the front jaw according to DE-OS 20 30 749 differs from the previously discussed embodiments in that the jaw body can be pivoted about an axis running perpendicular to the top of the ski.
  • the adjustable release spring which acts on a locking ball, is housed in a hole parallel to the swivel axis.
  • the locking ball lies in a longitudinally extending and wedge-shaped narrowing recess in a slidably mounted guide plate to which a toothed rack is fastened, in which a toothed segment engages.
  • the latter has a lever arm that can be depressed by the ski boot in the event of a frontal fall of the skier.
  • the guide plate is first shifted towards the end of the ski, so that the locking ball is supported in the narrowed area.
  • this reduces the force required for triggering, and the cup-shaped sole hold-down, which is fastened to the jaw body, can be pivoted with a lower force than in the case of a pure lintel.
  • This front jaw also has numerous components which make its manufacture difficult.
  • the invention has as its object the disadvantages to eliminate the known embodiments and to create a toe piece in which - in contrast to the last three exemplary embodiments - the reduction in the work of swiveling out which is required in the case of a forward turning fall should not be caused by compression of the release spring. Rather, the preload of the release spring should be constant, regardless of whether it is a pure lintel or a lintel combined with a frontal lintel.
  • this object is achieved according to the invention by the features of the characterizing part of this claim. Due to the fact that the control body has two webs arranged one above the other and with different widths on its front side, the toe piece is triggered according to two different characteristics, depending on whether a rotary lintel occurs alone or a frontal lintel combined with this. Such a vertical displacement of the control body is, however, much easier to carry out than displacements in the longitudinal direction of the ski, which necessitate a control gear having many individual parts.
  • the feature of claim 4 ensures a good transition of the upper pair of control surfaces of the control body into its lower pair of control surfaces.
  • the measure of claim 5 ensures that the shorter lever arm of the pivoting angle lever rests on the associated control surface. It also prevents canting from occurring in the lower region of this lever arm.
  • the subject matter of claim 6 enables an advantageous transmission of the force originating from the skier required for adjusting the control body.
  • the feature of claim 7 allows a play-free mounting of the free end of the pedal in the recess of the control body, without causing the pedal to bend.
  • the measure of claim 8 ensures that there can be no striking of the control body on the plate-shaped extension of the housing or striking of the pull rod on the transverse wall of the housing.
  • the object of claim 9 ensures, in addition to a secure mounting of the pull rod, a continuous support of the same during the adjustment process in the vertical plane.
  • FIG. 1 is a vertical longitudinal central section through the front jaw in the driving position
  • Fig. 2 is a plan view of the same partly in section along the line II - II in Fig. 1
  • Fig. 3 is a vertical longitudinal central section through the front jaw in the event of a frontal fall of the Skier
  • Fig. 4 is a partially cut along the line IV - IV in Fig. 3 plan view of the front cheeks, if the skier is also at the same time as the frontal fall.
  • 5 shows a detail of the front jaw in the diagram.
  • the front jaw is designated 1 in its entirety. It has a housing 2 which is fastened to a ski 3 by means of screws 4.
  • the housing 2 is provided towards a ski boot 16 with a plate-shaped extension 2a extends below the sole of the shoe.
  • a bore 2b is recessed in the housing 2, in which a release spring 5 designed as a helical spring is accommodated. This is supported at one end on a transverse wall 2c of the housing 2 and at its other end on a piston-like spring plate 6, which can be adjusted by means of a threaded sleeve 7 in the direction of the axis of the release spring 5 and which is guided in the bore 2b.
  • the threaded sleeve 7 rests with a surface 7a designed as a spherical zone on a correspondingly designed counter surface 6a of the spring plate 6.
  • the threaded sleeve 7 is screwed onto a tie rod 8, which the Trigger spring 5 passes through the center, protrudes through a vertical elongated hole 2d of the transverse wall 2c of the housing 2 and carries a control body 9 at its rear end.
  • two vertical axes 10 are fastened symmetrically to the vertical longitudinal center plane of the toe piece 1, on which angle levers 11 are mounted (cf. in particular FIG. 2). These angle levers 11 rest with their shorter lever arms 11a on the front of the control body 9 and with their longer lever arms 11b on the ski boot 16.
  • the shorter lever arms 11a viewed in cross section, are rectangular, each lever arm being chamfered at an acute angle ⁇ in the lower region of its side surface facing the control body 9.
  • a pedal 12 provided with a sliding plate 15 is articulated by means of an axis 13.
  • the free end of the pedal 12 protrudes into a recess 9a of the control body 9.
  • This recess 9a slidably receives the free end of the pedal 12 and widens in a wedge shape towards the axis 13 of the pedal 12.
  • a spring 14 e.g. in the form of a rubber block, which tends to push the pedal 12 upwards, so that the pull rod 8 rests against the upper end of the elongated hole 2d in the transverse wall 2c.
  • the control body 9 is cuboid.
  • the front side of the control body 9 facing the shorter lever arms 11a has in its lower region two symmetrically arranged with respect to the vertical longitudinal center plane of the front jaw 1, vertically extending control surfaces 9b delimited by circular cylindrical surfaces, which are separated from one another by a web 9c 1.
  • the two upper control surfaces 9e have upper portions 9e1 formed by circular cylindrical surfaces and subsequent lower portions 9e2, which are formed by toroidal surfaces.
  • the radii of the upper circular cylindrical surfaces 9e1 are larger than the radii of the lower control surfaces 9b.
  • the two control surfaces 9e are separated by a web 9c2, which is narrower than the lower web 9c1.
  • the transition between the upper web 9c2 and the lower web 9c1 is formed by the two toroidal surfaces 9e2 of the control surfaces 9e (see FIG. 5).
  • control body 9 is pulled backwards against the force of the release spring 5 until one of the two shorter lever arms 11a leaves the lower web 9c 1 and the associated cylindrical control surface 9 b slides along.
  • the pedal 12 is first pivoted against the force of the spring 14 in the direction of the upper side 3a of the ski 3, with the control body 9 being pulled downward.
  • the pivoting movement of the pedal 12 is limited by the dimensioning of the spring 14, so that neither the tie rod 8 at the lower end of the elongated hole 2d in the transverse wall 2c of the housing 2, the control body 9 can rest on the plate-shaped extension 2a of the housing 2.
  • the shorter lever arms 11a of the two angle levers 11 come into contact with the upper, narrower web 9c2.
  • the shorter lever arm 11a of the swinging-out angle lever 11 pulls the pull rod 8 backwards by a much shorter distance than is the case with a pure camber (see FIG. 4).
  • the release path required for the release of the toe piece 1 is therefore approximately up to 40% smaller in the case of a forward turning fall than in the case of a pure turning fall. This compensates for the increased bale friction that occurs during a forward turn.
  • the piston-type spring plate for the release spring could be screwed directly onto the pull rod and be provided with a cambered lateral surface with which the spring plate is guided into the bore of the housing and which enables the pull rod to be pivoted in the vertical plane.
  • Another spring could also be arranged below the pedal, e.g. a coil spring or a plate spring assembly.
  • the control body is connected to the two webs with two sinusoidal cross-sections Control surfaces or is provided with two flat inclined surfaces. In all cases it is advisable to round off the transitions between the webs and the control surfaces.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Claims (9)

  1. Mâchoire avant (1) comportant un boîtier (2) pouvant être fixé à un ski (3) et muni d'un perçage axial (2b), perçage dans lequel est logé un ressort de déclenchement (5) prenant appui par une extrémité contre une paroi transversale (2c) située dans le boîtier (2) et, par son autre extrémité, contre une cuvette (6) de ressort configurée en un piston et reliée à une tige de traction (8) qui traverse la paroi transversale (2c) et porte un corps de commande (9) à cette extrémité, la tige de traction (8) pouvant pivoter dans le sens vertical par rapport à l'axe longitudinal du perçage (2b) du boîtier (2), caractérisée par le fait que la tige de traction (8) est guidée dans un trou oblong vertical (2d) de la paroi transversale (2c) ; par le fait que le corps de commande (9) possède, à sa face antérieure, deux membrures superposées (9c₁, 9c₂) de largeurs différentes, contre lesquelles sont sélectivement appliqués les bras de levier courts (11a) de deux leviers coudés (11) connus par eux-mêmes et montés, dans le boîtier (2), sur des axes verticaux (10) ; par le fait que deux surfaces de commande (9b, 9c), de réalisation symétrique par rapport au plan médian longitudinal vertical du corps de commande (9), se rattachent à chaque membrure (9c₁, 9c₂) ; et par le fait que le corps de commande (9) comporte un évidement (9a) dans lequel une pédale (12), sollicitée par un ressort (14), est montée à coulissement par son extrémité libre.
  2. Mâchoire avant selon la revendication 1, caractérisée par le fait que l'allure des surfaces de commande (9e), se rattachant à la membrure supérieure (9c₂), est différente de celle des surfaces de commande (9b) se rattachant à la membrure inférieure (9c₁).
  3. Mâchoire avant selon la revendication 2, caractérisée par le fait que les surfaces inférieures de commande (9b) sont de réalisation cylindrique droite ; et par le fait que les surfaces supérieures de commande (9e) sont semblablement de réalisation cylindrique droite dans leurs régions supérieures (9e₁) et sont réalisées sous la forme de surfaces toroïdales dans leurs régions inférieures (9e₂), le rayon des surfaces cylindriques droites supérieures (9e₁) étant plus grand que le rayon des surfaces cylindriques droites inférieures (9b).
  4. Mâchoire avant selon les revendications 1 et 3, caractérisée par le fait que les transitions, entre la membrure supérieure (9c₂) et la membrure inférieure (9c₁), sont formées par deux décrochements (9d) qui matérialisent, à leur tour, les lignes d'intersection avec les surfaces toroïdales respectives des régions inférieures (9e₂) des deux surfaces de commande (9e).
  5. Mâchoire avant selon la revendication 1, caractérisée par le fait que les bras de levier courts (11a) des deux leviers coudés (11) possèdent une section transversale sensiblement rectangulaire, chaque bras de levier (11a) étant biseauté selon un angle aigu (α) dans la région inférieure de sa surface latérale tournée vers le corps de commande (9).
  6. Mâchoire avant selon la revendication 1, caractérisée par le fait que la pédale (12) est articulée par son autre région extrême, au moyen d'un axe (13) s'étendant transversalement par rapport à la direction longitudinale du ski, sur un prolongement (2a) du boîtier (2) qui est configuré en une plaque.
  7. Mâchoire avant selon la revendication 6, caractérisée par le fait que l'évidement (9a) pratiqué dans le corps de commande (9) présente un évasement cunéiforme en direction de l'axe (13) de la pédale (12).
  8. Mâchoire avant selon la revendication 6, caractérisée par le fait que le ressort (14) est par exemple interposé, entre la pédale (12) et le prolongement (2a) en forme de plaque du boîtier (2), sous la forme d'un bloc de caoutchouc qui limite le pivotement du corps de commande (9) et, par conséquent aussi, celui de la tige de traction (8).
  9. Mâchoire avant selon la revendication 1, caractérisée par le fait que la tige de traction est reliée par l'intermédiaire d'une douille filetée (7) ; et par le fait que la douille filetée (7) présente une surface (7a) réalisée sous la forme d'une zone sphérique qui porte contre une surface complémentaire (6a), de réalisation correspondante, de la cuvette (6) du ressort.
EP90110416A 1989-09-01 1990-06-01 Mâchoire avant Expired - Lifetime EP0415006B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2062/89 1989-09-01
AT0206289A AT396067B (de) 1989-09-01 1989-09-01 Vorderbacken

Publications (3)

Publication Number Publication Date
EP0415006A2 EP0415006A2 (fr) 1991-03-06
EP0415006A3 EP0415006A3 (en) 1991-11-27
EP0415006B1 true EP0415006B1 (fr) 1994-11-09

Family

ID=3526966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110416A Expired - Lifetime EP0415006B1 (fr) 1989-09-01 1990-06-01 Mâchoire avant

Country Status (5)

Country Link
EP (1) EP0415006B1 (fr)
JP (1) JPH03170178A (fr)
AT (1) AT396067B (fr)
DE (1) DE59007683D1 (fr)
RU (1) RU2014861C1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397472B (de) * 1991-03-28 1994-04-25 Tyrolia Freizeitgeraete Vorderbacken
AT398533B (de) * 1991-12-19 1994-12-27 Tyrolia Freizeitgeraete Vorderbacken
FR2694206B1 (fr) * 1992-07-31 1994-09-02 Salomon Sa Fixation de sécurité pour ski.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2448769C2 (de) * 1974-10-12 1982-08-26 Geze Gmbh, 7250 Leonberg Haltevorrichtung für Sicherheitsskibindungen
AT347310B (de) * 1977-03-24 1978-12-27 Smolka & Co Wiener Metall Vorderbacken
AT385673B (de) * 1986-06-27 1988-05-10 Tyrolia Freizeitgeraete Vorderbacken fuer sicherheitsskibindungen

Also Published As

Publication number Publication date
DE59007683D1 (de) 1994-12-15
JPH03170178A (ja) 1991-07-23
RU2014861C1 (ru) 1994-06-30
AT396067B (de) 1993-05-25
ATA206289A (de) 1992-07-15
EP0415006A3 (en) 1991-11-27
EP0415006A2 (fr) 1991-03-06

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