EP0267130B1 - Langlaufski mit Skibindungsvorrichtung - Google Patents

Langlaufski mit Skibindungsvorrichtung Download PDF

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Publication number
EP0267130B1
EP0267130B1 EP87420293A EP87420293A EP0267130B1 EP 0267130 B1 EP0267130 B1 EP 0267130B1 EP 87420293 A EP87420293 A EP 87420293A EP 87420293 A EP87420293 A EP 87420293A EP 0267130 B1 EP0267130 B1 EP 0267130B1
Authority
EP
European Patent Office
Prior art keywords
arms
ski
boot
fixing device
cross
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
EP87420293A
Other languages
English (en)
French (fr)
Other versions
EP0267130A1 (de
Inventor
Serge Soulhiard
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.)
Skis Rossignol SA
Original Assignee
Skis Rossignol SA
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 Skis Rossignol SA filed Critical Skis Rossignol SA
Priority to AT87420293T priority Critical patent/ATE51762T1/de
Publication of EP0267130A1 publication Critical patent/EP0267130A1/de
Application granted granted Critical
Publication of EP0267130B1 publication Critical patent/EP0267130B1/de
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
    • A63C5/00—Skis or snowboards
    • A63C5/04—Structure of the surface thereof
    • 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
    • A63C9/20—Non-self-releasing bindings with special sole edge holders instead of toe-straps

Definitions

  • the present invention relates to a cross-country ski equipped with a device for fixing the boot, this binding device comprising means for the indirect articulation of the boot (EP-A 167 462).
  • the tip of the boot does not remain fixed in position during the stride, but, relative to the upper part of the ski, it lifts and advances at the same time.
  • the lifting of the tip of the boot causes a parasitic effort for the skier facing upwards, called lifting effort.
  • Figure 1 is partially shown a cross-country ski 1 which has a longitudinal rib 2 limited by an upper face 3 and by two inclined side faces 4 which connect this upper face to two edges 5 of reduced height.
  • the rib 2 is crossed by a transverse axis 6 located below its upper face 3 and serving for the indirect articulation of the shoe.
  • the boot not shown here, has, over the entire length of its sole, a groove complementary to the rib 2 of the ski.
  • the binding of the shoe generally designated by 7.
  • This comprises, in a manner known per se, a stirrup 8 in the shape of an inverted U, the two branches of which extend on either side other of the rib 2 and are joined by a cross member 9 located above this rib.
  • the stirrup 8 is shaped for the interlocking of a complementary part, not shown here, formed at the front of the shoe, and it is equipped with means ensuring the immobilization and the locking of the front of the shoe on stirrup.
  • these means comprise a lever 10, also in the shape of an inverted U, which is outside the stirrup 8.
  • the lateral branches of this lever 10 are joined, near their axes of articulation 11,12, by a shaft or transverse axis 13 which can move in two lights in an arc 14 pierced in the two branches of the stirrup 8, concentrically with the articulation axis 11, 12 of the lever 10 on this stirrup.
  • the front of the shoe is pinched between the movable transveral axis 13 of the outer lever 10 and the fixed cross member 9 of the stirrup 8.
  • the upper face of the cross-member 9 is provided with a groove
  • the lever 10 comprises a latching pallet 15 in this groove, this pallet being a pallet rocker associated with an elastic pallet return device in the latching position.
  • the bases of each of the branches of the inner stirrup 8 are joined by a crosspiece 16, offset in the direction of the shoe, and profiled so as to closely fit the contour of the rib 2 on which it comes to rest, and to be married by the groove of the sole of the shoe.
  • the fastening 7, which could be of a different type than that shown, is attached to a rotational assembly formed by the transverse axis 6 and two pairs of longitudinal arms 17,18 placed l 'one on top of the other and interfering with their downstream ends. These two pairs of longitudinal arms are placed on either side of the groove 2, which is shaped to allow simultaneous vertical movement of these two pairs of arms, by rotation about their common axis of articulation 6.
  • the rib 2 has, over at least the length of the arms 17, 18, two transverse recesses 19, symmetrical with respect to the longitudinal axis of the ski, which start under the toe of the boot to stop slightly downstream of the arms 17 , 18.
  • These recesses 19 give the rib 2, over a portion defined by their length L, vertical side faces 20 against which the arms 17, 18 can be struggled vertically.
  • the two arms 17 are made of an elastic material, such as an elastomer. They each include an insert 21 consisting of a small metal plate pierced with two holes which provide passage on the one hand to a screw 22 for securing the arm 17 and the base of the stirrup 8, and on the other hand to a positioning lug 23 which is integral with the stirrup 8. The whole of the fixing 7 is thus attached to the two elastic arms 17.
  • the downstream ends 24.25 of the elastic arms 17 are secured, by means of a crosspiece 26 passing over the ski and two screws 27.28. at the downstream ends of the longitudinal arms 18, which are rigid arms.
  • the crosspiece 26 er the two arms 18 are for example molded in one piece.
  • the arms 17 are pressed against the arms 18.
  • the rigid arms 18 are articulated upstream around the axis 6 which crosses the groove 2.
  • a transverse bar 29 secured to the stirrup 8 at its downstream base is in contact with the upper part of the ski.
  • the starting position, just before the stride, is that of FIG. 2.
  • the rear cross member 16 rests on the groove 2 of the ski, if only because the boot presses on it, and the front cross member 26 is clearly at above the upper face 3 of the groove 2.
  • the acute angle between the two arms 17 and 18 has a zero value.
  • the distance between axis 6 and axis 12 is then d.
  • the superimposed arms 17, 18 could both be elastic, and even made in one piece, the axis 6 then being able to be locked in rotation.
  • the arms 17, 18 could both be rigid, articulated one on the other at their downstream ends by means of a hinge pin, and brought back into position after the stride by means of a spring of traction for example, this spring being tensioned between their upstream ends.
  • the axis 6 can be an axis locked in angular position, taken from the mass of the ski for example, but be constituted by a torsion bar, forming both a joint and a return spring. Equivalently, this axis 6 can be fixed in rotation and in torsion, and the upstream ends of the arms 18 can be articulated on it by means of a spiral return spring, etc.
  • the superimposed arms 17-18 also both elastic, could be in a prestressed state when the fixing is in the rest position, the angle a then no longer being zero. This prestress would increase the value of the elastic return of the binding.
  • this binding principle can be adapted to a cross-country ski conventionally of rectangular section.
  • the upper part of the ski has on at least the length of the arms 17-18 two transverse recesses 19 symmetrical with respect to the median longitudinal axis of the ski which start under the toe of the boot to stop slightly downstream of the arms 17-18.
  • These recesses 19 give the upper part of the ski a portion defined by their length L, vertical side faces 20 against which the arm 17-18 can struggle vertically.
  • the invention is applicable whatever the different possible positions of the axis 6 in height in the recess 19, to obtain a prestressing of the elastic arms, the different respective lengths of the arms 17-18 which will determine d, to adjust the advance of the front of the shoe during the stride, the different densities of the plastic used to make the arms 17-18, to increase or decrease the value of the elastic return of the binding, so that the restoring energy of the binding can be adapted to the needs of the skier, in particular its weight and its type of evolution on snow.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Claims (9)

1. Langlaufski, mit einer Skibindungs-Vorrichtung, wobei diese Bindungsvorrichtung eine Einrichtung zur indirekten Befestigung des Schuhs umfaßt, dadurch gekennzeichnet,
- daß die Oberfläche (2) des Skikörpers zwei seitliche, zur Mittellängsachse des Skis symmetrische Absätze (19) aufweist, die sich über einen definierten Abschnitt (L) des Skis von der für die Schuhspitze vorgesehene Stelle in Richtung der Skispitze erstrecken, wobei die zwei Absätze (19) an der Oberfläche (2) des Skis und auf diesem Abschnitt (L) über vertikale Seitenwände (20) verfügen, die die vertikale Ausfederung von zwei ersten Längsarmen (18) ermöglichen, wobei diese vertikale Ausfederung durch Drehung der beiden Arme um ihre hinteren Enden erfolgt, von denen jedes jeweils an einem der beiden Enden einer Querachse (6) angelenkt ist, welche diese vertikalen Seitenwände (20) ungefähr unter der für die Schuhspitze vorgesehenen Stelle durchsetzt;
- daß die vorderen Enden der beiden Arme als Gelenkverbindung der vorderen Enden (24, 25) von zwei zweiten Längsarmen (17) dienen, von denen jeder jeweils so über dem zugehörigen ersten Arm (18) in der gleichen vertikalen Ebene angebracht ist, daß er mit jenem ersten Arm (18) einen Spitzen Winkel (a) bildet; und
- daß die hinteren Abschnitte der zweiten Arme dazu dienen, sie direkt mit der Skibindungs-Vorrichtung (7) zu verbinden, wobei sich die ersten Arme senken, wenn der hintere Teil des Schuhs bei einem Schritt angehoben wird, während sich gleichzeitig der Winkel (a) zwischen jedem ersten und zweiten Arm vergrößert und sich die Schuhspitze auf der Oberfläche (3) des Skis nach vorne bewegt, wobei in dem durch die Querachse (6) um die vier Längsarme (17, 18) gebildeten Rotationseinrichtung zudem eine Einrichtung (16, 17) vorgesehen ist, um den hinteren Teil des Schuhs nach dem Schritt automatisch in seine Ausgangsstellung zurückzuführen.
2. Langlaufski mit Skibindungs-Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß mindestens einer der zweiten Längsarme (17) aus einem elastischen Stoff hergestellt ist.
3. Langlaufski mit Skibindungs-Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die vorderen Enden der ersten und zweiten Längsarme (17, 18) durch ein über den Ski (1) verlaufenden Querträger (26) verbunden sind.
4. Langlaufski mit Skibindungs-Vorrichtung nach einem der Ansprüche 1-3, dadurch gekennzeichnet, daß die übereinander gelagerten ersten und zweiten Arme (17, 18) aus einem elastischen Stoff in einem Stück gefertigt sind.
5. Langlaufski mit Skibindungs-Vorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die die vertikalen Seitenwände (20) durchsetzende Querachse (6) eine bei Drehung festsitzende Torsionsachse ist.
6. Langlaufski mit Skibindungsvorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die die vertikalen Seitenwände (20) durchsetzende Querachse (6) bei Drehung festgesetzt und mit dem ersten Längsarm (18) durch eine Rückholfederverbindung verbunden ist.
7. Langlaufski mit Skibindungs-Vorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die Steuerung des elastischen Rückholens dadurch erreicht wird, daß elastische Arme aus Kunststoff verschiedener Härte verwendet werden, um den Wert des elastischen Rückholens der Bindung zu vergrößern oder zu verringern.
8. Langlaufski mit Skibindungs-Vorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die Querachse (6) in den Seitenwänden (20) in unterschiedlicher Höhe angebracht sein kann, um eine Vorspannung der elastischen Arme zu erreichen.
9. Langlaufski mit Skibindungs-Vorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die Länge der Arme variabel zueinander ist, um das Vorwärtsrücken des vorderen Teils des Schuhs während des Schrittes zu steuern.
EP87420293A 1986-10-29 1987-10-28 Langlaufski mit Skibindungsvorrichtung Expired - Lifetime EP0267130B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87420293T ATE51762T1 (de) 1986-10-29 1987-10-28 Langlaufski mit skibindungsvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8615258A FR2605889B1 (fr) 1986-10-29 1986-10-29 Ski de fond avec son dispositif de fixation de la chaussure
FR8615258 1986-10-29

Publications (2)

Publication Number Publication Date
EP0267130A1 EP0267130A1 (de) 1988-05-11
EP0267130B1 true EP0267130B1 (de) 1990-04-11

Family

ID=9340447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87420293A Expired - Lifetime EP0267130B1 (de) 1986-10-29 1987-10-28 Langlaufski mit Skibindungsvorrichtung

Country Status (4)

Country Link
EP (1) EP0267130B1 (de)
AT (1) ATE51762T1 (de)
DE (1) DE3762185D1 (de)
FR (1) FR2605889B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2775437B1 (fr) 1998-02-27 2000-05-19 Salomon Sa Dispositif interface entre un ski et des elements de retenue d'une chaussure sur le ski

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540392B1 (fr) * 1983-02-09 1985-07-19 Salomon & Fils F Dispositif de fixation d'une chaussure a un ski de fond ou de randonnee
CA1259084A (fr) * 1984-05-29 1989-09-05 Pierre Corbet Ski de fond avec son systeme de fixation de la chaussure

Also Published As

Publication number Publication date
ATE51762T1 (de) 1990-04-15
DE3762185D1 (de) 1990-05-17
FR2605889B1 (fr) 1988-12-09
FR2605889A1 (fr) 1988-05-06
EP0267130A1 (de) 1988-05-11

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