EP0220393B1 - Fixation de sécurité pour ski - Google Patents

Fixation de sécurité pour ski Download PDF

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Publication number
EP0220393B1
EP0220393B1 EP19860110504 EP86110504A EP0220393B1 EP 0220393 B1 EP0220393 B1 EP 0220393B1 EP 19860110504 EP19860110504 EP 19860110504 EP 86110504 A EP86110504 A EP 86110504A EP 0220393 B1 EP0220393 B1 EP 0220393B1
Authority
EP
European Patent Office
Prior art keywords
binding
safety ski
piston
release
detent
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
Application number
EP19860110504
Other languages
German (de)
English (en)
Other versions
EP0220393A1 (fr
Inventor
Charles Parsons
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB858519346A external-priority patent/GB8519346D0/en
Priority claimed from GB858520679A external-priority patent/GB8520679D0/en
Priority claimed from GB858528932A external-priority patent/GB8528932D0/en
Priority claimed from GB868601235A external-priority patent/GB8601235D0/en
Application filed by Individual filed Critical Individual
Priority to AT86110504T priority Critical patent/ATE50510T1/de
Publication of EP0220393A1 publication Critical patent/EP0220393A1/fr
Application granted granted Critical
Publication of EP0220393B1 publication Critical patent/EP0220393B1/fr
Expired 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
    • A63C9/0802—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings other than mechanically controlled, e.g. electric, electronic, hydraulic, pneumatic, magnetic, pyrotechnic devices; Remote control

Definitions

  • a spheroid (3) into which two retaining arms (39) and a positioning leg (2) are fixed, and whose rear has a shaped recess (36), is mounted in a cylindrical container (34).
  • the container's closed end is hemispherical. It has a slot (I) and a shaped aperture (38) cut in it, to allow limited movement in any direction of the ski-boot's two retaining arms, and up and down movement of the positioning leg.
  • the arms and leg move, due to forces acting on them, via the welts and sole of the ski-boot. They can only move because the spheroid rotates in its container.
  • a spring-loaded (20) plunger (48) is in three sections, two of which are concentric (10) (13), locked together by inserts (14).
  • the seal is forced against the walls of the containing cylinder (49), by the action of the release spring. Rotation of the spheroid can only occur, because of a relative displacement between the spheroid, and the plunger, against the release spring (20). Sufficient rotation will take the plunger outside the constraint of the shaped recess (36).
  • the inserts (14) are locked in place by a shaped piston (30).
  • the rear part of the plunger also forms a piston (25).
  • This fluid will either flow through the restrictable by-pass, formed, by the control rod (22), and the ports (18) (17) in the shaped piston (30), and plunger (13), or, if the flow is too great, it will cause displacement of the shaped piston (30), against its return springs (8) (21).
  • Momentary changes in volume, as the shaped piston (30) moves, is compensated for, by inflation of the compensating bag (29).
  • the Mechanical Release Unit (Fixed), is similar in its action to the Mechanical Release Unit described in para 2.2.1., in that release forces, acting on the retaining arms (39) and positioning leg (2), will cause the spheroid (3) to rotate. Because the plunger (4) is fixed, rotation of the spheroid can now only occur, by the spheroid and its container being displaced away from the plunger, by compressing the relatively light spheroid casing return spring (41). This displacement, will be transmitted through the ski-boot, to the Mechanical Release Unit, against its release spring. It will cause release of the constraint of this spring, either as described in para 2.2.1., para 2.2.4., or by the rotation of the spheroid, taking the fixed plunger (43) (4), outside the limit of the shaped recess (36).
  • the release spring (20) tension is set, by adjusting the retaining cap (24). Displacement of fluid due to adjustment, is taken up, by the compensating bag (29). This control is pre-set, according to the physical properties of the skier.
  • Control over the rate of increase in release force is set, by controlling the rate at which fluid can be displaced, by the piston part of the plunger (25), through the by-pass ports (17) (18). It is set by adjusting the position of the control rod (22), to set the by-pass dimensions according to the physical properties of the skier.
  • Mannual Release is achieved by sliding the release unit housing (47).
  • the release unit housing is coupled to the piston (30), by the connecting rod (46) acting through the mounting block (5), the spring (8), and fluid seal (32). Sliding the housing will displace the piston (30), until the second shaped portion (50), allows the inserts to unlock the two concentric portions of the plunger from each other, and thus remove the release spring's influence on the spheroid's rotation.
  • the spheroid can thus move the plunger, against the relatively light return spring (16), so that the retaining arms no longer retain the ski-boot.
  • the Binding consists of a front and rear unit, at least one of which is a Mechanical Release Unit.
  • the second unit is either a Mechanical Release Unit (Fixed), or another Mechanical Release Unit, depending on the experience of the skier.
  • Either the Mechanical Release Unit, or the Mechanical Release Unit (Fixed), can be in the Front or Rear position.
  • the Compensating Bag is a non-permeable, elastic bag (29), filled with a permeable, sponge-like material (26), which will allow changes in pressure and volume inside the fluid container, to balance against atmospheric pressure. It is secured to the casing (49) by a grub scew (28) and washer (27) which are drilled to allow atmospheric compensation.
  • Compensating Ports (II) are drilled through applicable moving components to facilitate a free flow of fluid when these components move and to prevent seepage having a detrimental effect.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (10)

1. Fixation de sécurité pour ski comprenant des blocs de fixation avant et arrière munis d'éléments de retenue conçus pour s'engager sur la trépointe proéminente d'une chaussure de ski, l'un au moins de ces blocs de fixation comportant un mécanisme de libération conçu pour libérer les éléments de retenue en réponse à l'apparition, sur la chaussure de ski, de forces risquant de provoquer des blessures, le mécanisme de libération comprenant un dispositif à piston (10, 13) monté à l'intérieur d'un cylindre (49) et couplé (38, 36, 4, 48) aux éléments de retenue (39) des blocs de fixation de manière à transformer tout mouvement de ces éléments de retenue en un déplacement axial du dispositif à piston, contre l'action d'un ressort de retenue (20), le cylindre (49) comprenant une chambre de cylindre remplie de liquide et subdivisée en deux compartiments, ces deux compartiments étant en communication de fluide l'un avec l'autre par l'intermédiaire d'un dispositif de restriction de débit (22) à capacité de débit limitée, caractérisé en ce que la chambre de cylindre est subdivisée en deux compartiments comme indiqué ci-dessus, par un élément de piston (25) du dispositif à piston (10, 13), et en ce que le dispositif à piston comporte deux parties télescopiques (10, 13) et un mécanisme de détente (14, 30, 8) associé à celles-ci, ce mécanisme de détente verrouillant les deux parties ensemble et pouvant être manoeuvré hydrauliquement pour déverrouiller les deux parties lorsqu'un déplacement du dispositif à piston (10, 13) amène la pression du liquide se trouvant dans le compartiment derrière l'élément de piston (25) à dépasser une valeur prédéterminée.
2. Fixation de sécurité pour ski selon la revendication 1, caractérisée en ce que le mécanisme de détente comprend un certain nombre d'éléments de détente (14) pour verrouiller les deux parties (10, 13) ensemble et un élément de verrouillage (30), cet élément de verrouillage étant poussé par un ressort (8) dans une position de verrouillage retenant les éléments de détente dans leur engagement de verrouillage, et cet élément de verrouillage pouvant être déplacé hydrauliquement, contre l'action de son ressort de poussée (8), pour venir dans une position permettant aux éléments de détente de sortir de leur engagement de verrouillage.
3. Fixation de sécurité pour ski selon la revendication 2, caractérisée en ce que les éléments de détente sont des billes de détente (14) et en ce que l'élément de verrouillage (30) est un piston muni de cavités radiales (12) déplacées pour venir en coïncidence avec les billes de détente (14) lorsque l'élément de verrouillage est écarté de sa position de verrouillage, pour permettre aux billes de détente d'être déplacées radialement de manière à sortir de leur engagement de verrouillage.
4. Fixation de sécurité pour ski selon l'une quelconque des revendications 1 à 3, caractérisée en ce qu'un ressort de compression (16) est placé entre les deux parties (10, 13) de manière à pousser celles-ci dans une position allongée.
5. Fixation de sécurité pour ski selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les éléments de retenue (39) partent d'un sphéroïde (3) monté de manière à pouvoir effectuer une rotation omnidirectionnelle et coopérant avec le dispositif à piston (10, 13) par l'intermédiaire d'une tête de piston hémisphérique (4) venant s'appuyer contre une cavité sphérique (36) du sphéroïde.
6. Fixation de sécurité pour ski selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le cylindre (49) comporte un capot réglable (24) servant de support réglable pour le ressort de retenue (20).
7. Fixation de sécurité pour ski selon l'une quelconque des revendications 1 à 6, caractérisée en ce que l'élément de restriction de débit comporte un élément réglable (22) permettant de faire varier sa résistance au débit.
8. Fixation de sécurité pour ski selon l'une quelconque des revendications 1 à 7, caractérisée en ce que le compartiment de cylindre se trouvant en face de l'élément de piston (25) comporte un élément de compensation élastique (29) associé à celui-ci pour permettre la compensation des variations de volume du liquide.
9. Fixation de sécurité pour ski selon l'une quelconque des revendications 1 à 8, caractérisée en ce que le mécanisme de détente (30) est couplé (5, 35, 6, 8) à un élément manoeuvrable manuellement les moyens de retenue.
10. Fixation de sécurité pour ski selon l'une quelconque des revendications 1 à 9, caractérisée en ce que l'un seulement des blocs de fixation avant et arrière comprend un mécanisme de libération, et en ce que les éléments de retenue (39) de l'autre bloc de fixation (figure 2) sont couplés à un élément fixe (42, 43) de manière à transformer tout mouvement des éléments de retenue en un déplacement de ces éléments de retenue vers le premier bloc de fixation indiqué ci-dessus.
EP19860110504 1985-08-01 1986-07-30 Fixation de sécurité pour ski Expired EP0220393B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86110504T ATE50510T1 (de) 1985-08-01 1986-07-30 Sicherheitsskibindung.

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB8519346 1985-08-01
GB858519346A GB8519346D0 (en) 1985-08-01 1985-08-01 Step in safety ski-binding
GB858520679A GB8520679D0 (en) 1985-08-19 1985-08-19 Safety ski-binding
GB8520679 1985-08-19
GB858528932A GB8528932D0 (en) 1985-08-01 1985-11-25 Ski-binding
GB8528932 1985-11-25
GB8601235 1986-01-20
GB868601235A GB8601235D0 (en) 1985-08-01 1986-01-20 Ski binding

Publications (2)

Publication Number Publication Date
EP0220393A1 EP0220393A1 (fr) 1987-05-06
EP0220393B1 true EP0220393B1 (fr) 1990-02-28

Family

ID=27449683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860110504 Expired EP0220393B1 (fr) 1985-08-01 1986-07-30 Fixation de sécurité pour ski

Country Status (2)

Country Link
EP (1) EP0220393B1 (fr)
DE (1) DE3669111D1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT319112B (de) * 1972-12-29 1974-12-10 Smolka & Co Wiener Metall Sicherheitsskibindung
CH581481A5 (en) * 1973-11-09 1976-11-15 Gertsch Ag Zug Hydraulically operated safety ski release - has hydraulic piston on toe or heel catch for automatic freeing of ski boot
DE2800630A1 (de) * 1978-01-07 1979-07-19 Stabilus Gmbh Schwingungsdaempfer mit geschwindigkeitsabhaengiger veraenderung der daempfwirkung
FR2522514A1 (fr) * 1982-03-02 1983-09-09 Salomon & Fils F Fixation de ski avec assistance de declenchement

Also Published As

Publication number Publication date
EP0220393A1 (fr) 1987-05-06
DE3669111D1 (de) 1990-04-05

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