EP0226479B1 - Heel holder, particularly for a safety ski binding - Google Patents

Heel holder, particularly for a safety ski binding Download PDF

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Publication number
EP0226479B1
EP0226479B1 EP86402231A EP86402231A EP0226479B1 EP 0226479 B1 EP0226479 B1 EP 0226479B1 EP 86402231 A EP86402231 A EP 86402231A EP 86402231 A EP86402231 A EP 86402231A EP 0226479 B1 EP0226479 B1 EP 0226479B1
Authority
EP
European Patent Office
Prior art keywords
heel
fixed body
retaining member
piston
down device
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
EP86402231A
Other languages
German (de)
French (fr)
Other versions
EP0226479A1 (en
Inventor
Henri Peyre
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.)
Look SA
Original Assignee
Look SA
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Filing date
Publication date
Application filed by Look SA filed Critical Look SA
Priority to AT86402231T priority Critical patent/ATE59562T1/en
Publication of EP0226479A1 publication Critical patent/EP0226479A1/en
Application granted granted Critical
Publication of EP0226479B1 publication Critical patent/EP0226479B1/en
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
    • A63C9/08514—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 transversal axis
    • 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
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0841—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw
    • A63C9/0842—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw the jaw pivoting on the body or base about a transverse axis
    • 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
    • A63C9/005—Ski bindings with means for adjusting the position of a shoe holder or of the complete binding relative to the ski
    • 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
    • A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor
    • 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
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0846—Details of the release or step-in mechanism
    • 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
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0847—Details of the manual release

Definitions

  • the present invention relates to a heel for ski safety binding, intended to keep the rear part of a shoe engaged in the binding and locked, in the ski use position, between this heel and a stop located towards the before this one.
  • heel pads of the type known in the art those which comprise a body or fixed support, immobilized in an adjustable position on the ski surface and a tip pivoting relative to the body and comprising in a known manner a boot tongue which serves to close the binding using the heel of the shoe, and two lateral arms or jaws, arranged above the appendage and partially surrounding the edge of the sole of this shoe, so that the tilting towards the top of the toe around a transverse axis located behind the heel allows the latter to be lifted with the toe and to escape the binding.
  • the shoe pivots around a fictitious axis located in the vicinity of its tip and drives the rotating toe elastically recalled by an elastic spring mechanism.
  • the tip is associated with a control lever which, operated by the user, forces the tip to pivot upward to release the heel in the manner indicated above; moreover, in the event of a fall of the skier, in particular towards the front, during which he exerts on his heel an effort also directed upwards, the tip can likewise pivot against an elastic mechanism mounted in the fixed body, so that, beyond a certain triggering threshold, the heel escapes again from the heel.
  • heel pieces of the above kind where the pivoting of the toe relative to the fixed body is carried out against an elastic mechanism mounted in the body or resting thereon. , the guidance of the tip in its upward tilting movement being ensured by sliding a transverse piece or two external pins carried by the tip in curved housings or against a ramp of suitable profile provided in or on the fixed body.
  • the articulation axis of the end piece on the fixed body is itself movably mounted in an elongated groove formed in the body, so that the pivoting of the The end piece is accompanied by a substantially axial displacement of the latter with, as the case may be, an advance or a retreat of the end piece relative to the longitudinal direction of the ski.
  • a substantially axial displacement of the latter with, as the case may be, an advance or a retreat of the end piece relative to the longitudinal direction of the ski.
  • the present invention aims at the design of a heel device for ski safety binding, comprising a fixed body, a pivoting end piece, a control lever and an elastic mechanism mounted between the body and the end piece, so that the realization is simpler and therefore has increased reliability compared to the presently known prior solutions.
  • the subject of the invention is a heel piece for ski safety binding, comprising a fixed body immobilized in an adjustable position in the longitudinal direction of the ski, this generally rectangular body having two vertical lateral faces and comprising an internal cavity open at one end and closed at the other extending along the axis of the ski, a tip articulated around an axis transverse to the fixed body, covering this body by means of two wings parallel to the vertical lateral faces of that -this, this tip, which is capable of holding the heel of a shoe in the locked position by means of two appendages intended to be engaged respectively above and below the heel of the shoe, being subjected to the action of a elastic spring mechanism carried by the fixed body and housed in the internal cavity of this body, characterized in that the spring of the elastic mechanism bears on the one hand against the ex closed end of the cavity and on the other hand against a movable U-shaped piston mounted sliding in the axial direction, and the central part of which closes the open end of the cavity, while the two flat branches of this piston slide parallel to
  • the lever is articulated on the fixed body around an axis parallel to the transverse axis of the end piece on the body and has a curved rim at one end, capable of coming in support against a facing bearing provided under the end piece, so that the folding of the lever causes the rim to rise and tilt upwards of the end piece.
  • the latter advances with the end piece relative to the fixed body, compressing the spring of the elastic mechanism.
  • the end piece has an inclined ramp, cooperating with a transverse roller sal carried by the fixed body, said ramp having a substantially rounded profile extended at its ends by two hollow zones delimiting two stable positions of the end piece, respectively downwards and upwards relative to the fixed body.
  • the lever is articulated on the end piece around the pins on which this end piece also articulates relative to the U-shaped piston and has two internal pins extending transversely opposite one another and arranged in sliding support on lateral surfaces provided on the fixed body in front of each pin, so that the tilting of the lever around the pins causes by pressing pins on the lateral surfaces of displacement forwards of the piston.
  • the two pins of the lever engage in two open grooves of the endpiece in the low position thereof.
  • the bearing surfaces of the pins of the lever are produced in the sides of a metal stirrup straddling the fixed body and applied against a projecting planar shoulder, provided thereon.
  • the lever is articulated on the end piece around a transverse axis external to the fixed body and comprises a heel formed by two flat lateral extensions, covering the lateral faces of the fixed body and in support sliding, when the lever is controlled, on the two ends of a rod parallel to the axis passing through the fixed body, these two ends being extended by rollers rolling in a curved groove provided in each of the parallel wings of the end piece .
  • the fixed body comprises, formed under the cavity containing the spring of the elastic mechanism a housing open towards the surface of the ski in which is arranged a blocking member in position of the body relative to a rack fixed on the ski, this member comprising a cleat mounted pivoting about an axis under the effect of a spring wound around said axis and having two ends, respectively bearing on the body and on the cleat, the latter comprising at its base a tooth capable of cooperating with the rack in a position chosen according to the length thereof.
  • the cleat tooth presses on the end of a very stiff steel piece or metal blade, extending above the rack and one end of which is fixed to the body and the other engages in a notch of the rack, being pushed against it by the cleat.
  • the central part of the piston and U has a hole in which a captive adjustment screw engages, cooperating with a flat nut on which the end of the spring of the elastic mechanism rests, the rotation of the screw, by adjusting the position of the nut with respect to the central part of the U-shaped piston, allowing the initial adjustment of compression of the spring.
  • the flat nut has a folded part extending parallel to the upper face of the fixed body which includes a window opposite for reading a graduation carried on the folded part, indicating the compression tension of the spring according to the position. of the nut.
  • the heel piece under consideration designated as a whole under the reference 1, mainly consists of a body or fixed support 2, of generally parallelepiped shape, of a pivoting end piece 3 having two lateral wings 3a and 3b respectively, covering the lateral faces of the body 1 and of a control lever 4.
  • the fixed body 2 is immobilized relative to the surface of the ski S by means of an adjustable positioning device R, the detail of realization will be described later.
  • the body 2 is associated with an elastic mechanism M, consisting mainly of a helical spring 5 mounted inside a cavity 6, formed inside the body 2 in the longitudinal direction of the ski, the spring 5 being associated, in the manner indicated below, with a U-shaped piston 7, the sectional view of FIG. 2 more particularly illustrates the section.
  • the fixed body 2 comprises an end bead 8 opposite the piston 7 and against which the spring 5 of the elastic mechanism L rests.
  • the cavity 6 is delimited by two parallel and vertical plane faces, respectively 9 and 10 of the body 2, extending the heel 8 and extending towards the rear, the end 11 of the cavity 6, opposite the heel 8 being open opposite the central part 12 of the piston 7.
  • the latter has in turn two lateral flat branches 13 and 14, extending parallel to the faces 9 and 10 of the body 2.
  • the piston 7 has in its lateral branches 13 and 14 two elongated holes, respectively 15 and 16, allowing, thanks to a particular profile, the crossing of these branches by the bodies of two articulation pins 17 and 18 , FIG. 3 more particularly illustrating the production of these pins and their mounting on the piston 7.
  • each of the pins 17 or 18 comprises in particular a head 19, a body 20 and an end portion 21 substantially of the same section as the body 20, these two parts of the pin being separated by a circular groove 22 whose width corresponds substantially to that of the thickness of each of the branches 13 or 14 of the piston 7.
  • the holes 15 and 16 are arranged so as to present two consecutive parts, respectively 23 and 24, the first circular and of greater width corresponding substantially to the diameter of the body 20 of each pin, while the elongated part 24 and of smaller width, allows the engagement and the maintenance of the corresponding branch of the piston 7 in the groove 22.
  • the pins 17 and 18 once put in place carry out the pivoting mounting of the end piece 3 on the piston 7, the end piece having for this purpose lateral holes 25 and 26 for the engagement of the head 19 of these pins holes being mixed in the two wings respectively 3a and 3b of the end piece laterally covering the fixed body 2, parallel to its faces 9 and 10.
  • lateral holes 25 and 26 for the engagement of the head 19 of these pins holes being mixed in the two wings respectively 3a and 3b of the end piece laterally covering the fixed body 2, parallel to its faces 9 and 10.
  • the piston 7 has in its central part 12, substantially in the axis of the spring 5, a hole 29 in which is mounted the end of the head of a screw 30, held captive against the part 12 of the piston 7.
  • the head 30 is extended beyond the part 12 by a flange 31 on which a stirrup 32 fits, immobilized against the central part 12 by a shoulder 33 of the screw head 30.
  • the threaded part 34 of the screw is engaged with a flat nut forming a support stop 35, mounted between the arms 13 and 14 of the piston 7 and against which the end of the spring 5 is applied, the position of this stop 35 along the length of the screw 34 being adjusted by the rotation of the head 30, thus allowing to play on the prior adjustment of the spring tension.
  • the support stop 35 comprises an upper part folded at a right angle 36, extending parallel to the upper face of the body 2, the stirrup 32 itself comprising a parallel flat part 37 to part 36 and arranged above the latter.
  • This flat part 37 is preferably made of a transparent material, in particular of the "plexiglass" type.
  • the part 36 whose position is variable longitudinally with the stop 35, includes an engraved index (not shown) which, compared to the previous graduation, allows the user to know the initial compression tension of the spring 5 and thus to regulate the hardness when the heel is released, in relation to the graduation of the stop, seen through a window 38 provided for this purpose in the body 2.
  • the tip 3 of the heel piece is itself produced in a manner known in the art and in particular comprises at its lower end, normally in contact with the surface of the ski S, an appendage 39 which engages under the heel of the skier's shoe (not shown).
  • the heel piece has two lateral jaws, respectively 40 and 41 (FIG. 2) which come to rest on the top of the sole while allowing the heel of this shoe to be kept normally in the locked position.
  • the end piece 3 also comprises, in its part located opposite the body 2, a recess 42 (FIGS. 1 and 4), extended by a support ramp 43 having a slightly rounded central part 44 and two recessed areas 45 and 46, on each side of the latter.
  • the rounded part 44 of the ramp 43 and the recessed areas 45 and 46 cooperating with a transverse roller 47, carried by the body 2 and which rolls on the ramp 43 during the tilting upwards of the end piece 3 to pass from the position illustrated in Figure 1 to that shown in Figure 4.
  • the tip 3 can be tilted, either manually at means of the control lever 4 when the skier wishes to take off his ski and remove his boot from the binding, either automatically, in the event of a fall, in particular towards the front of the skier, in which case the latter exercises on the heel of the boot a significant effort directed upwards which, in the same way, causes the corresponding tilting of the toe 3 and the release of the shoe.
  • control lever 4 is articulated around a boss 48 provided at the upper part of the fixed body 2 around a transverse axis 49.
  • This lever 4 comprises a handle maneuver 50 and opposite the latter relative to the axis 49, a bent edge 51 engaging against the bottom of the recess 42 provided in the end piece 3.
  • the movement of the lever 4 clockwise, to pass from the position illustrated in Figure 1 to that shown in Figure 4 will exert on the nozzle 3 an effort directed upwards, allowing the roller 47 to describe the ramp 43 and to pass from the bearing position of this roller in the hollow zone 45 in the low position of the end piece to that where this same roller is in the zone 46 in the high position.
  • the end piece 3 undergoes with the U-shaped piston 7 a complementary movement of forward movement due to its articulation with this piston on the pins 17 and 18, those here, at the same time as the end piece is pushed forward against the spring 5 by the ramp 43, sliding in the slots 27 and 28 formed in the vertical lateral faces 9 and 10 of the body 2.
  • the nozzle 3 at the same time as it rotates during its trajectory around the pins 17 and 18, is driven by the U-shaped piston 7 to which it is linked by these same pins, so as to accompany the heel of the boot during the heaving operation, whether the latter is controlled by lever 4, or whether it results from the triggering of safety in the event of the skier falling.
  • This arrangement makes it possible in particular to increase what is known in the art to call the "elastic stroke" of the heel piece, by ensuring during the movement of the heel of the skier's shoe on the one hand, the toe on the other hand, to maintain these two elements in contact with one another over a substantially increased stroke despite their respective trajectories which are opposite to each other, which considerably improves the security of the fixing on release .
  • the operation of the endpiece and in particular its tilting trajectory upwards in the manner indicated above is independent of the relative position of the fixed body 2 relative to the surface of the ski S, this position being able to be adjusted. by the adjustment mechanism R according to the dimensions of the skier's shoe to provide between the front stop of the binding (not shown) and the heel a sufficient engagement space.
  • the mechanism R adapted for this purpose is disposed in a housing 51, formed at the lower part of the body 2 facing the surface of the ski S.
  • This housing 51 is delimited towards the front of the body 2 by two support stops respectively 52 and 53 between which is mounted a helical spring 54.
  • a passage 55 for the end 56 of an elastic piece or blade 57 In the stop 53 is provided a passage 55 for the end 56 of an elastic piece or blade 57, this end 56 comprising, between the stops 52 and 53, a spout 58 able to cooperate with the end of the spring 54, allowing a longitudinal elastic mounting of the part 57.
  • the latter has a zig-zag profile, and comprises, opposite the end 56, an extension 59 whose edge extreme is capable of coming to engage in one of the notches 60 of a rack 61 fixed to the surface S of the ski in the longitudinal direction thereof, thus allowing, depending on the position of the notch realizing the immobilization of the body 2, adjusting the latter's axial position ier.
  • the spring 54 indeed pushes the part 57 laterally and tends to cause it to tilt upwards.
  • the end 59 of the part 57 is immobilized with respect to the notch 60 chosen by means of a pivoting cleat 62, mounted movably around a transverse axis 63 carried by the body 2 and around which is a pin spring 64, the ends of which respectively 65 and 66 bear for one against the bottom of the housing 51 and for the other against a tooth 67 extending the cleat 62 downwards towards the end 59.
  • the tack 62 is shown in the raised position where its tooth 67 presses and locks in the notch 60 the end 59 of the spring 57.
  • the stop 62 is shown tilted backwards in a position where the tooth 67 releases the spring 57, allowing the free sliding of the body 2 on the rack 61.
  • FIG. 5 illustrates another alternative embodiment which, while repeating the essential provisions of those illustrated in the preceding figures, in particular as regards the articulation of the pivoting end piece 3 on the U-shaped piston 7 itself mounted axially movable on body 2, provides other constructive arrangements.
  • control lever 4 has a general profile of an elongated triangle, and seen from above (FIG. 6) two wings respectively 68 and 69 joined by a heel 70.
  • the lever 4 also comprises in these wings 68 and 69 two lateral pins facing each other 71 and 72. These lateral pins in the low position of the endpiece are engaged in grooves 73 and 74 provided in the corresponding part opposite the endpiece 3, the latter being articulated on the piston 7 around the pins 17 and 18 in the manner already described with reference to the first embodiment.
  • the pins 71 and 72 carried by the control lever 4 are caused to slide on a stirrup 75 disposed on the body 2 in a transverse plane and having two bearing surfaces respectively 76 and 77 for these pins.
  • the bracket 75 is applied against a support shoulder 78, provided at the rear part of the body 2.
  • control lever 4 is here directly articulated on the end piece 3 around a transverse axis 79. It also has, on each side of the body 2, two parallel flat wings (of which only 80 appears in FIGS. 7 and 9), arranged to come to cooperate with rollers, respectively 81 and 82 carried by a rod 83 passing through the body 2 in the rear part 84 of the latter.
  • Each of the rollers 81 and 82 is engaged in a groove, such as 85, provided in the corresponding wings 3a and 3b of the end piece 3, these grooves having a bent profile with two inclined slopes leading to two zones forming end stops 86 and 87 for the nozzle 3, respectively in the low position as illustrated in FIG. 7 or in the maximum position tilted upwards as illustrated in FIG. 9.
  • the upward tilting movement relative to the body 2 is here combined for the end piece and the U-shaped piston 7 which is linked to it, a rearward movement of the ski S, contrary to the provisions envisaged in the previous embodiments.
  • the tilting of the end piece exerts via its pins 17 and 18 a force on the U-shaped piston 7 as it is back, compressing the spring 5 of the elastic mechanism.
  • This comprises for this purpose a transverse bearing surface 88 which in this case forms the central part of the piston 7 connecting the lateral branches 13 and 14.
  • the heel 8 of the body 2 is disposed towards the rear of the ski and directly carries the head of the screw 30, making it possible to adjust the initial compression of the spring 5 and the hardness setting when the heel piece is triggered in the manner already indicated.
  • the spring 5 may be weaker than in the previous embodiments, thanks to the arrangement of the center of rotation of the toe on the rear of the heel piece.
  • the tip which moves back during heaving therefore reduces the forward pushing effect. This results in a limitation of parasitic friction on the front stop of the ski in the event of a fall and also makes it easier to put on the heel, the toe advancing thereon during the operation of fitting the boot into the fixation.
  • the arrangements according to the present invention establishing a direct connection between the end piece and the U-shaped piston carried by the fixed body 2, movable against the elastic mechanism, provide particularly significant advantages.
  • the articulation of the tip on the piston can in all cases be located as close as possible to the upper face of the fixed body 2, in order to increase the elastic stroke of the heel piece, by providing a trajectory for the tip. substantially straight where the center of rotation of this tip and the contact point on the safety ramp are located substantially on the same line, which leads to simpler and above all more reliable mechanical operation.

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  • 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)
  • Ropes Or Cables (AREA)

Abstract

The heel hold-down device, notably for safety ski bindings, comprises a fixed body, a tilting heel retaining member, a control lever, and an elastic mechanism incorporating an axial coil compression spring. The fixed body has two lateral vertical walls and is operatively connected to a movable U-shaped piston of which the two flat side arms are adapted to slide parallel to the vertical walls of the body. The heel retaining member is pivoted to the side arms of the piston by means of a pair of trunnions engaging registering holes formed in the side walls of the heel retaining member and in the piston arms. The trunnions are also slidably engaged in longitudinal slots formed in the lateral walls of the fixed body.

Description

La présente invention est relative à une talonnière pour fixation de sécurité de ski, destinée à maintenir la partie arrière d'une chaussure engagée dans la fixation et bloquée, en position d'utilisation du ski, entre cette talonnière et une butée située vers l'avant de celui-ci.The present invention relates to a heel for ski safety binding, intended to keep the rear part of a shoe engaged in the binding and locked, in the ski use position, between this heel and a stop located towards the before this one.

Elle concerne plus particulièrement, parmi les talonnières du genre connu dans la technique, celles qui comportent un corps ou support fixe, immobilisé en position réglable sur la surface du ski et un embout pivotant par rapport au corps et comprenant de façon connue une languette de chaussage qui sert à fermer la fixation à l'aide du talon de la chaussure, et deux bras latéraux ou mâchoires, disposées au-dessus de l'appendice et entourant partiellement le bord de la semelle de cette chaussure, de telle sorte que le basculement vers le haut de l'embout autour d'un axe tranver- sal situé en arrière par rapport au talon, permette à celui-ci d'être soulevé avec l'embout et d'échapper à la fixation. Dans ce mouvement, la chaussure pivote autour d'un axe fictif situé au voisinage de sa pointe et entraîne l'embout en rotation rappelé élastiquement par un mécanisme élastique à ressort. L'embout est associé à un levier de commande qui, manoeuvré par l'utilisateur, oblige l'embout à pivoter vers le haut pour libérer le talon de la manière indiquée ci-dessus; par ailleurs, en cas de chute du skieur, en particulier vers l'avant, au cours de laquelle il exerce sur son talon un effort également dirigé vers le haut, l'embout peut de même pivoter à l'encontre d'un mécanisme élastique monté dans le corps fixe, de telle sorte que, au-delà d'un certain seuil de déclenchement, le talon échappe derechef à la talonnière.It relates more particularly, among the heel pads of the type known in the art, those which comprise a body or fixed support, immobilized in an adjustable position on the ski surface and a tip pivoting relative to the body and comprising in a known manner a boot tongue which serves to close the binding using the heel of the shoe, and two lateral arms or jaws, arranged above the appendage and partially surrounding the edge of the sole of this shoe, so that the tilting towards the top of the toe around a transverse axis located behind the heel allows the latter to be lifted with the toe and to escape the binding. In this movement, the shoe pivots around a fictitious axis located in the vicinity of its tip and drives the rotating toe elastically recalled by an elastic spring mechanism. The tip is associated with a control lever which, operated by the user, forces the tip to pivot upward to release the heel in the manner indicated above; moreover, in the event of a fall of the skier, in particular towards the front, during which he exerts on his heel an effort also directed upwards, the tip can likewise pivot against an elastic mechanism mounted in the fixed body, so that, beyond a certain triggering threshold, the heel escapes again from the heel.

On connait déjà de très nombreuses réalisations de talonnières du genre ci-dessus, où le pivotement de l'embout par rapport au corps fixe s'effectue à l'encontre d'un mécanisme élastique monté dans le corps ou en appui sur celui-ci, le guidage de l'embout dans son mouvement de basculement vers le haut étant assuré par coulissement d'une pièce transversale ou de deux tourillons externes portés par l'embout dans des logements incurvés ou contre une rampe de profil adapté prévue dans ou sur le corps fixe. En outre et selon une disposition également connue dans la technique, l'axe d'articulation de l'embout sur le corps fixe est lui-même monté mobile dans une rainure allongée ménagée dans le corps, de telle sorte que le pivotement de l'embout s'accompagne d'un déplacement sensiblement axial de celui-ci avec, selon le cas, une avance ou un recul de l'embout par rapport à la direction longitudinale du ski. Une telle disposition est notamment envisagée dans le brevet français 2.021.055 ou dans les demandes de brevets allemands publiées 2.659.369 ou 2.027.412.We already know very many embodiments of heel pieces of the above kind, where the pivoting of the toe relative to the fixed body is carried out against an elastic mechanism mounted in the body or resting thereon. , the guidance of the tip in its upward tilting movement being ensured by sliding a transverse piece or two external pins carried by the tip in curved housings or against a ramp of suitable profile provided in or on the fixed body. In addition and according to an arrangement also known in the art, the articulation axis of the end piece on the fixed body is itself movably mounted in an elongated groove formed in the body, so that the pivoting of the The end piece is accompanied by a substantially axial displacement of the latter with, as the case may be, an advance or a retreat of the end piece relative to the longitudinal direction of the ski. Such a provision is notably envisaged in the French patent 2,021,055 or in the published German patent applications 2,659,369 or 2,027,412.

Or, ces solutions sont généralement complexes à réaliser, notamment du fait que, au cours du basculement de l'embout, le ressort du mécanisme élastique subit également un débattement ou une flexion, en suivant le mouvement de l'embout, ce qui est préjudiciable à une tenue mécanique satisfaisante et de longue durée. De plus, il est difficile de réaliser le montage des pièces constituant la talonnière, de telle sorte que soit obtenue une étanchéité suffisante de l'ensemble vis à vis de l'extérieur pour éviter que la neige ou la glace ne pénètre entre les parties mobiles, en gênant leur fonctionnement.However, these solutions are generally complex to carry out, in particular because, during the tip tilting, the spring of the elastic mechanism also undergoes a deflection or a bending, following the movement of the tip, which is detrimental to a satisfactory and long-lasting mechanical strength. In addition, it is difficult to mount the parts constituting the heel piece, so that a sufficient seal is obtained for the assembly with respect to the outside to prevent snow or ice from entering between the moving parts. , by interfering with their operation.

La présente invention vise à la conception d'un dispositif de talonnière pour fixation de sécurité de ski, comportant un corps fixe, un embout pivotant, un levier de commande et un mécanisme élastique monté entre le corps et l'embout, de telle sorte que la réalisation en soit plus simple et présente de ce fait une fiabilité accrue par rapport aux solutions antérieures actuellement connues.The present invention aims at the design of a heel device for ski safety binding, comprising a fixed body, a pivoting end piece, a control lever and an elastic mechanism mounted between the body and the end piece, so that the realization is simpler and therefore has increased reliability compared to the presently known prior solutions.

A cet effet, l'invention a pour objet une talonnière pour fixation de sécurité de ski, comportant un corps fixe immobilisé en position réglable selon la direction longitudinale du ski, ce corps de forme générale parallélépipédique présentant deux faces latérales verticales et comportant une cavité interne ouverte à une extrémité et fermée à l'autre s'étendant selon l'axe du ski, un embout articulé autour d'un axe transversal au corps fixe, coiffant ce corps au moyen de deux ailes paral- léles aux faces latérales verticales de celui-ci, cet embout, qui est apte à maintenir le talon d'une chaussure en position bloquée au moyen de deux appendices destinés à être engagés respectivement au dessus et au dessous du talon de la chaussure, étant soumis à l'action d'un mécanisme élastique à ressort porté par le corps fixe et logé dans la cavité interne de ce corps, caractérisée en ce que le ressort du mécanisme élastique est en appui d'une part contre l'extrémité fermée de la cavité et d'autre part contre un piston mobile en U monté coulissant dans le sens axial, et dont la partie centrale ferme l'extrémité ouverte de la cavité, cependant que les deux branches plates de ce piston coulissent parallèlement aux faces latérales du corps fixe, les ailes de l'embout étant également parallèles aux branches du piston en U, et cet embout étant articulé sur les branches autour de deux tourillons ou vis axialement opposés, engagés dans des trous ménagés en regard respectivement dans les ailes de l'embout et les branches du piston.To this end, the subject of the invention is a heel piece for ski safety binding, comprising a fixed body immobilized in an adjustable position in the longitudinal direction of the ski, this generally rectangular body having two vertical lateral faces and comprising an internal cavity open at one end and closed at the other extending along the axis of the ski, a tip articulated around an axis transverse to the fixed body, covering this body by means of two wings parallel to the vertical lateral faces of that -this, this tip, which is capable of holding the heel of a shoe in the locked position by means of two appendages intended to be engaged respectively above and below the heel of the shoe, being subjected to the action of a elastic spring mechanism carried by the fixed body and housed in the internal cavity of this body, characterized in that the spring of the elastic mechanism bears on the one hand against the ex closed end of the cavity and on the other hand against a movable U-shaped piston mounted sliding in the axial direction, and the central part of which closes the open end of the cavity, while the two flat branches of this piston slide parallel to the faces lateral of the fixed body, the wings of the end-piece also being parallel to the branches of the U-shaped piston, and this end-piece being articulated on the branches around two axially opposite trunnions or screws, engaged in holes made opposite respectively in the wings of the nozzle and the branches of the piston.

Dans un premier mode de réalisation de l'invention, le levier est articulé sur le corps fixe autour d'un axe parallèle à l'axe transversal de l'embout sur le corps et comporte un rebord recourbé à une extrémité, apte à venir en appui contre une portée en regard prévue sous l'embout, de telle sorte que le rabattement du levier provoque le soulèvement du rebord et le basculement vers le haut de l'embout. Dans ce mouvement, par suite de l'articulation de l'embout sur le piston, ce dernier avance avec l'embout par rapport au corps fixe, en comprimant le ressort du mécanisme élastique.In a first embodiment of the invention, the lever is articulated on the fixed body around an axis parallel to the transverse axis of the end piece on the body and has a curved rim at one end, capable of coming in support against a facing bearing provided under the end piece, so that the folding of the lever causes the rim to rise and tilt upwards of the end piece. In this movement, as a result of the articulation of the end piece on the piston, the latter advances with the end piece relative to the fixed body, compressing the spring of the elastic mechanism.

Avantageusement, l'embout présente une rampe inclinée, coopérant avec un galet transversal porté par le corps fixe, ladite rampe présentant un profil sensiblement arrondi prolongé à ses extrémités par deux zones en creux délimitant deux positions stables de l'embout, respectivement vers le bas et vers le haut par rapport au corps fixe.Advantageously, the end piece has an inclined ramp, cooperating with a transverse roller sal carried by the fixed body, said ramp having a substantially rounded profile extended at its ends by two hollow zones delimiting two stable positions of the end piece, respectively downwards and upwards relative to the fixed body.

Dans un autre mode de réalisation, le levier est articulé sur l'embout autour des tourillons sur lequel s'articule également cet embout par rapport au piston en U et présente deux pions internes s'étendant transversalement en regard l'un de l'autre et disposés en appui glissant sur des portées latérales prévues sur le corps fixe devant chaque pion, de telle manière que le basculement du levier autour des tourillons provoque par appui des pions sur les portées latérales de déplacement vers l'avant du piston. De préférence, les deux pions du levier s'engagent dans deux gorges ouvertes de l'embout en position basse de celui-ci. De préférence également, les portées d'appui des pions du levier sont réalisées dans les côtés d'un étrier métallique chevauchant le corps fixe et appliqué contre un épaulement plan débordant, prévu sur celui-ci.In another embodiment, the lever is articulated on the end piece around the pins on which this end piece also articulates relative to the U-shaped piston and has two internal pins extending transversely opposite one another and arranged in sliding support on lateral surfaces provided on the fixed body in front of each pin, so that the tilting of the lever around the pins causes by pressing pins on the lateral surfaces of displacement forwards of the piston. Preferably, the two pins of the lever engage in two open grooves of the endpiece in the low position thereof. Preferably also, the bearing surfaces of the pins of the lever are produced in the sides of a metal stirrup straddling the fixed body and applied against a projecting planar shoulder, provided thereon.

Dans un troisième mode de réalisation de l'invention, le levier est articulé sur l'embout autour d'un axe transversal extérieur au corps fixe et comporte un talon formé de deux extensions latérales planes, coiffant les faces latérales du corps fixe et en appui glissant, lors de la commande du levier, sur les deux extrémités d'une tige parallèle à l'axe traversant le corps fixe, ces deux extrémités se prolongeant par des galets roulant dans une rainure incurvée prévue dans chacune des ailes parallèles de l'embout.In a third embodiment of the invention, the lever is articulated on the end piece around a transverse axis external to the fixed body and comprises a heel formed by two flat lateral extensions, covering the lateral faces of the fixed body and in support sliding, when the lever is controlled, on the two ends of a rod parallel to the axis passing through the fixed body, these two ends being extended by rollers rolling in a curved groove provided in each of the parallel wings of the end piece .

Selon une caractéristique particulière de l'invention et quelque soit le mode de réalisation plus particulièrement envisagé en ce qui concerne l'articulation de l'embout sur le piston en U, le corps fixe comporte, ménagé sous la cavité contenant le ressort du mécanisme élastique un logement ouvert en direction de la surface du ski dans lequel est disposé un organe de blocage en position du corps par rapport à une crémaillère fixée sur le ski, cet organe comprenant un taquet monté pivotant autour d'un axe sous l'effet d'un ressort enroulé autour dudit axe et présentant deux extrémités, respectivement en appui sur le corps et sur le taquet, celui-ci comprenant à sa base une dent apte à coopérer avec la crémaillère dans une position choisie selon la longueur de celle-ci. De préférence, la dent du taquet appuie sur l'extrémité d'une pièce ou lame métallique en acier très raide, s'étendant au-dessus de la crémaillère et dont une extrémité est fixée sur le corps et l'autre s'engage dans un cran de la crémaillère, en étant poussée contre celui-ci par le taquet.According to a particular characteristic of the invention and whatever the embodiment more particularly envisaged as regards the articulation of the end piece on the U-shaped piston, the fixed body comprises, formed under the cavity containing the spring of the elastic mechanism a housing open towards the surface of the ski in which is arranged a blocking member in position of the body relative to a rack fixed on the ski, this member comprising a cleat mounted pivoting about an axis under the effect of a spring wound around said axis and having two ends, respectively bearing on the body and on the cleat, the latter comprising at its base a tooth capable of cooperating with the rack in a position chosen according to the length thereof. Preferably, the cleat tooth presses on the end of a very stiff steel piece or metal blade, extending above the rack and one end of which is fixed to the body and the other engages in a notch of the rack, being pushed against it by the cleat.

En outre et selon une autre caractéristique particulière en elle-même connue mais mise en oeuvre dans la talonnière considérée en combinaison avec les autres caractéristiques précitées, la partie centrale du piston et U présente un trou dans lequel s'engage une vis prisonnière de réglage, coopérant avec un écrou plat sur lequel s'appuie l'extrémité du ressort du mécanisme élastique, la rotation de la vis, en ajustant la position de l'écrou vis à vis de la partie centrale du piston en U, permettant le réglage initial de la compression du ressort. Avantageusement, l'écrou plat présente une partie repliée s'étendant parallèlement à la face supérieure du corps fixe qui comprend en regard une fenêtre pour la lecture d'une graduation portée sur la partie repliée, indiquant la tension de compression du ressort selon la position de l'écrou.In addition and according to another particular characteristic in itself known but implemented in the heel piece considered in combination with the other aforementioned characteristics, the central part of the piston and U has a hole in which a captive adjustment screw engages, cooperating with a flat nut on which the end of the spring of the elastic mechanism rests, the rotation of the screw, by adjusting the position of the nut with respect to the central part of the U-shaped piston, allowing the initial adjustment of compression of the spring. Advantageously, the flat nut has a folded part extending parallel to the upper face of the fixed body which includes a window opposite for reading a graduation carried on the folded part, indicating the compression tension of the spring according to the position. of the nut.

D'autres caractéristiques d'une talonnière pour fixation de sécurité de ski établie conformément à l'invention, apparaîtront encore à travers la description qui suit de plusieurs exemples de réalisation, données à titre indicatif et non limitatif, en référence aux dessins annexés sur lesquels:

  • La figure 1 est une vue en coupe longitudinale de la talonnière considérée selon un premier mode de réalisation de l'inyention;
  • La figure 2 est une vue en coupe transversale selon la ligne II-II de la figure 1;
  • La figure 3 est une vue de détail en perspective, illustrant plus particulièrement la forme du piston en U entrant dans la réalisation de la talonnière selon les figures 1 et 2 et le montage des tourillons d'articulation de l'embout et du levier sur ce piston.
  • La figure 4 est une autre vue en coupe longitudinale de la talonnière, analogue à celle de la figure 1 mais dans laquelle l'embout pivotant est représenté dans sa position de basculement maximal vers le haut.
  • La figure 5 est une vue de côté d'une autre variante de réalisation de la talonnière considérée;
  • La figure 6 est une vue de dessus avec arrachement partiel de la talonnière selon le mode de réalisation représenté à la figure 5;
  • La figure 7 est une vue en coupe longitudinale d'un troisième mode de réalisation, avec la talonnière en position basse.
  • La figure 8 est une vue en coupe transversale de la talonnière de la figure 7, selon la ligne VIII-VIII de cette dernière;
  • La figure 9 est une vue extérieure avec arrachement partiel de la tallonnière de la figure 7, illustrée dans la position correspondant au basculement maximal vers le haut de l'embout pivotant.
Other characteristics of a heel for ski safety binding established in accordance with the invention will become more apparent from the following description of several exemplary embodiments, given by way of non-limiting example, with reference to the appended drawings in which :
  • Figure 1 is a longitudinal sectional view of the heel considered according to a first embodiment of the invention;
  • Figure 2 is a cross-sectional view along line II-II of Figure 1;
  • FIG. 3 is a detailed perspective view, illustrating more particularly the shape of the U-shaped piston entering into the production of the heel piece according to FIGS. 1 and 2 and the mounting of the articulation pins of the end piece and of the lever on this piston.
  • Figure 4 is another view in longitudinal section of the heel, similar to that of Figure 1 but in which the pivoting end piece is shown in its position of maximum tilting upwards.
  • Figure 5 is a side view of another alternative embodiment of the heel considered;
  • Figure 6 is a top view with partial cutaway of the heel according to the embodiment shown in Figure 5;
  • Figure 7 is a longitudinal sectional view of a third embodiment, with the heel in the low position.
  • Figure 8 is a cross-sectional view of the heel of Figure 7, along line VIII-VIII thereof;
  • Figure 9 is an external view with partial cutaway of the heel-keeper of Figure 7, illustrated in the position corresponding to the maximum tilting up of the swivel end.

Dans le mode de réalisation illustré sur les figures 1 à 4, la talonnière considérée, désignée dans son ensemble sous la référence 1, se compose principalement d'un corps ou support fixe 2, de forme générale parallèlépipédique, d'un embout pivotant 3 présentant deux ailes latérales 3a et 3b respectivement, recouvrant les faces latérales du corps 1 et d'un levier de commande 4. Le corps fixe 2 est immobilisé par rapport à la surface du ski S au moyen d'un dispositif à positionnement réglable R dont le détail de réalisation sera décrit plus loin. Le corps 2 est associé à un mécanisme élastique M, constitué principalement d'un ressort hélicoîdal 5 monté à l'intérieur d'une cavité 6, ménagée à l'intérieur du corps 2 selon la direction longitudinale du ski, le ressort 5 étant associé, de la manière indiquée ci-après, à un piston en U 7, dont la vue en coupe de la figure 2 illustre plus particulièrement la section.In the embodiment illustrated in FIGS. 1 to 4, the heel piece under consideration, designated as a whole under the reference 1, mainly consists of a body or fixed support 2, of generally parallelepiped shape, of a pivoting end piece 3 having two lateral wings 3a and 3b respectively, covering the lateral faces of the body 1 and of a control lever 4. The fixed body 2 is immobilized relative to the surface of the ski S by means of an adjustable positioning device R, the detail of realization will be described later. The body 2 is associated with an elastic mechanism M, consisting mainly of a helical spring 5 mounted inside a cavity 6, formed inside the body 2 in the longitudinal direction of the ski, the spring 5 being associated, in the manner indicated below, with a U-shaped piston 7, the sectional view of FIG. 2 more particularly illustrates the section.

Le corps fixe 2 comporte un talon d'extrémité 8 opposé au piston 7 et contre lequel s'appuie le ressort 5 du mécanisme élastique M. La cavité 6 est délimitée par deux faces planes parallèles et verticales, respectivement 9 et 10 du corps 2, prolongeant le talon 8 et s'étendant vers l'arrière, l'extrémité 11 de la cavité 6, opposée au talon 8 étant ouverte en regard de la partie centrale 12 du piston 7. Celui-ci présente son tour deux branches planes latérales 13 et 14, s'étendant parallèlement aux faces 9 et 10 du corps 2.The fixed body 2 comprises an end bead 8 opposite the piston 7 and against which the spring 5 of the elastic mechanism L rests. The cavity 6 is delimited by two parallel and vertical plane faces, respectively 9 and 10 of the body 2, extending the heel 8 and extending towards the rear, the end 11 of the cavity 6, opposite the heel 8 being open opposite the central part 12 of the piston 7. The latter has in turn two lateral flat branches 13 and 14, extending parallel to the faces 9 and 10 of the body 2.

Conformément à l'invention, le piston 7 comporte dans ses branches latérales 13 et 14 deux trous allongés, respectivement 15 et 16, permettant grâce à un profil particulier, la traversée de ces branches par les corps de deux tourillons d'articulation 17 et 18, la figure 3 illustrant plus particulièrement la réalisation de ces tourillons et leur montage sur le piston 7.According to the invention, the piston 7 has in its lateral branches 13 and 14 two elongated holes, respectively 15 and 16, allowing, thanks to a particular profile, the crossing of these branches by the bodies of two articulation pins 17 and 18 , FIG. 3 more particularly illustrating the production of these pins and their mounting on the piston 7.

Comme on le voit en effet sur cette figure, chacun des tourillons 17 ou 18 comporte notamment une tête 19, un corps 20 et une portion d'extrémité 21 sensiblement de même section que le corps 20, ces deux parties du tourillon étant séparées par une gorge circulaire 22 dont la largeur correspond sensiblement à celle de l'épaisseur de chacune des branches 13 ou 14 du piston 7.As can be seen in this figure, each of the pins 17 or 18 comprises in particular a head 19, a body 20 and an end portion 21 substantially of the same section as the body 20, these two parts of the pin being separated by a circular groove 22 whose width corresponds substantially to that of the thickness of each of the branches 13 or 14 of the piston 7.

Dans les branches 13 et 14 du piston, les trous 15 et 16 sont aménagés de manière à présenter deux parties consécutives, respectivement 23 et 24, la première circulaire et de plus grande largeur correspondant sensiblement au diamètre du corps 20 de chaque tourillon, tandis que la partie 24 allongée et de plus faible largeur, permet l'engagement et le maintien de la branche correspondante du piston 7 dans la gorge 22. Ces dispositions, comme on le déduit aisément des figures, assurent le montage ou le démontage des tourillons 17 ou 18 par rapport au piston 7, en permettant dans un premier temps et après compression limitée du ressort 5, l'engagement des parties d'extrémité 21 dans la partie 23 de plus grande largeur puis, consécutivement à un léger déplacement parallèlement à la direction longitudinale des branches 13 ou 14 après relachement du ressort, le coulissement de la partie 24 dans la gorge 22.In the branches 13 and 14 of the piston, the holes 15 and 16 are arranged so as to present two consecutive parts, respectively 23 and 24, the first circular and of greater width corresponding substantially to the diameter of the body 20 of each pin, while the elongated part 24 and of smaller width, allows the engagement and the maintenance of the corresponding branch of the piston 7 in the groove 22. These arrangements, as can easily be deduced from the figures, ensure the mounting or dismounting of the pins 17 or 18 relative to the piston 7, allowing initially and after limited compression of the spring 5, the engagement of the end portions 21 in the portion 23 of greater width then, following a slight displacement parallel to the longitudinal direction branches 13 or 14 after release of the spring, the sliding of the part 24 in the groove 22.

Les tourillons 17 et 18 une fois mis en place réalisent le montage pivotant de l'embout 3 sur le piston 7, l'embout présentant à cet effet des trous latéraux 25 et 26 pour l'engagement de la tête 19 de ces tourillons, ces trous étant méangés dans les deux ailes respectivement 3a et 3b de l'embout coiffant latéralement le corps fixe 2, parallèlement à ses faces 9 et 10. En outre, afin de permettre à l'ensemble constitué par l'embout 3 et le piston 7 solidarisés l'un à l'autre par les tourillons 17 et 18, de subir un déplacement vis à vis du corps fixe 2, on prévoit dans celui-ci des fentes longitudinales, respectivement 27 et 28, usinées dans les côtés extérieurs de ses faces latérales 9 et 10 et où coulissent les portions d'extrémité 21 de ces tourillons.The pins 17 and 18 once put in place carry out the pivoting mounting of the end piece 3 on the piston 7, the end piece having for this purpose lateral holes 25 and 26 for the engagement of the head 19 of these pins holes being mixed in the two wings respectively 3a and 3b of the end piece laterally covering the fixed body 2, parallel to its faces 9 and 10. In addition, in order to allow the assembly constituted by the end piece 3 and the piston 7 secured to one another by the pins 17 and 18, to undergo a displacement with respect to the fixed body 2, there are provided in the latter longitudinal slots, respectively 27 and 28, machined in the outer sides of its faces side 9 and 10 and where the end portions 21 of these pins slide.

Le piston 7 comporte dans sa partie centrale 12, sensiblement dans l'axe du ressort 5, un trou 29 dans lequel est montée l'extrémité de la tête d'une vis 30, maintenue prisonnière contre la partie 12 du piston 7. A cet effet, la tête 30 se prolonge au-delà de la partie 12 par une collerette 31 sur laquelle vient s'adapter un étrier 32, immobilisé contre la partie centrale 12 par un épaulement 33 de la tête de vis 30. La partie filetée 34 de la vis est en prise avec un écrou plat formant butée d'appui 35, montée entre les branches 13 et 14 du piston 7 et contre laquelle s'applique l'extrémité du ressort 5, la position de cette butée 35 selon la longueur de la vis 34 étant ajustée par la rotation de la tête 30, en permettant ainsi de jouer sur le réglage préalable de la tension du ressort.The piston 7 has in its central part 12, substantially in the axis of the spring 5, a hole 29 in which is mounted the end of the head of a screw 30, held captive against the part 12 of the piston 7. At this Indeed, the head 30 is extended beyond the part 12 by a flange 31 on which a stirrup 32 fits, immobilized against the central part 12 by a shoulder 33 of the screw head 30. The threaded part 34 of the screw is engaged with a flat nut forming a support stop 35, mounted between the arms 13 and 14 of the piston 7 and against which the end of the spring 5 is applied, the position of this stop 35 along the length of the screw 34 being adjusted by the rotation of the head 30, thus allowing to play on the prior adjustment of the spring tension.

Avantageusement et comme illustré sur la figure 3, la butée d'appui 35 comporte une partie supérieure repliée à angle droit 36, s'étendant parallèlement à la face supérieure du corps 2, l'étrier 32 comportant lui-même une partie plate 37 parallèle à la partie 36 et disposée au-dessus de cette dernière. Cette partie plate 37 est de préférence réalisée en un matériau transparent, notamment du genre "plexiglass". Sur celle-ci sont prévus des chiffres repères ou graduations, tandis que la partie 36 dont la position est variable longitudinalement avec la butée 35, comprend un index gravé (non représenté) qui, par rapport à la graduation précédente, permet à l'utilisateur de connaître la tension de compression initiale du ressort 5 et de régler ainsi la dureté au déclenchement de la talonnière, en relation avec la graduation de la butée, vue à travers une fenêtre 38 ménagée à cet effet dans le corps 2.Advantageously and as illustrated in FIG. 3, the support stop 35 comprises an upper part folded at a right angle 36, extending parallel to the upper face of the body 2, the stirrup 32 itself comprising a parallel flat part 37 to part 36 and arranged above the latter. This flat part 37 is preferably made of a transparent material, in particular of the "plexiglass" type. On this are provided reference or graduation figures, while the part 36 whose position is variable longitudinally with the stop 35, includes an engraved index (not shown) which, compared to the previous graduation, allows the user to know the initial compression tension of the spring 5 and thus to regulate the hardness when the heel is released, in relation to the graduation of the stop, seen through a window 38 provided for this purpose in the body 2.

L'embout 3 de la talonnière est lui-même réalisé d'une manière connue dans la technique et comporte notamment à sont extrémité inférieure, normalement au contact de la surface du ski S, un appendice 39 qui s'engage sous le talon de la chaussure du skieur (non représentée). A l'opposé de l'appendice 39, la talonnière comporte deux mâchoires latérales, respectivement 40 et 41 (figure 2) qui viennent s'appliquer sur le dessus de la semelle en permettant de maintenir normalement en position bloquée le talon de cette chaussure.The tip 3 of the heel piece is itself produced in a manner known in the art and in particular comprises at its lower end, normally in contact with the surface of the ski S, an appendage 39 which engages under the heel of the skier's shoe (not shown). Opposite to appendix 39, the heel piece has two lateral jaws, respectively 40 and 41 (FIG. 2) which come to rest on the top of the sole while allowing the heel of this shoe to be kept normally in the locked position.

L'embout 3 comporte par ailleurs, dans sa partie située en regard du corps 2, un évidement 42 (figures 1 et 4), prolongé par une rampe d'appui 43 présentant une partie centrale légèrement arrondie 44 et deux zones en creux 45 et 46, de chaque côté de cette dernière. La partie arrondie 44 de la rampe 43 et les zones en creux 45 et 46 coopérant avec un galet transversal 47, porté par le corps 2 et qui roule sur la rampe 43 lors du basculement vers le haut de l'embout 3 pour passer de la position illustrée sur la figure 1 à celle représentée sur la figure 4.The end piece 3 also comprises, in its part located opposite the body 2, a recess 42 (FIGS. 1 and 4), extended by a support ramp 43 having a slightly rounded central part 44 and two recessed areas 45 and 46, on each side of the latter. The rounded part 44 of the ramp 43 and the recessed areas 45 and 46 cooperating with a transverse roller 47, carried by the body 2 and which rolls on the ramp 43 during the tilting upwards of the end piece 3 to pass from the position illustrated in Figure 1 to that shown in Figure 4.

La manoeuvre du basculement de l'embout 3 peut être ainsi réalisée, soit manuellement au moyen du levier de commande 4 lorsque le skieur désire déchausser son ski et retirer sa chaussure de la fixation, soit de manière automatique, en cas de chute notamment vers l'avant du skieur, auquel cas celui-ci exerce sur le talon de la chaussure un effort important dirigé vers le haut qui, de la même manière, provoque le basculement correspondant de l'embout 3 et la libération de la chaussure.Maneuvering the tip 3 can be tilted, either manually at means of the control lever 4 when the skier wishes to take off his ski and remove his boot from the binding, either automatically, in the event of a fall, in particular towards the front of the skier, in which case the latter exercises on the heel of the boot a significant effort directed upwards which, in the same way, causes the corresponding tilting of the toe 3 and the release of the shoe.

Dans le mode de réalisation représenté sur les figures 1 à 4, le levier de commande 4 est articulé autour d'un bossage 48 prévu à la partie supérieure du corps fixe 2 autour d'un axe transversal 49. Ce levier 4 comporte une poignée de manoeuvre 50 et à l'opposé de celle-ci par rapport à l'axe 49, un rebord coudé 51 venant s'engager contre le fond de l'évidement 42 prévu dans l'embout 3. Dans ces conditions, on comprend aisément que le mouvement du levier 4 dans le sens des aiguilles d'une montre, pour passer de la position illustrée sur la figure 1 à celle représentée sur la figure 4, va exercer sur l'embout 3 un effort dirigé vers le haut, permettant au galet 47 de décrire la rampe 43 et de passer de la position d'appui de ce galet dans la zone en creux 45 en position basse de l'embout à celle où ce même galet se trouve dans la zone 46 en position haute.In the embodiment shown in FIGS. 1 to 4, the control lever 4 is articulated around a boss 48 provided at the upper part of the fixed body 2 around a transverse axis 49. This lever 4 comprises a handle maneuver 50 and opposite the latter relative to the axis 49, a bent edge 51 engaging against the bottom of the recess 42 provided in the end piece 3. Under these conditions, it is easily understood that the movement of the lever 4 clockwise, to pass from the position illustrated in Figure 1 to that shown in Figure 4, will exert on the nozzle 3 an effort directed upwards, allowing the roller 47 to describe the ramp 43 and to pass from the bearing position of this roller in the hollow zone 45 in the low position of the end piece to that where this same roller is in the zone 46 in the high position.

Au cours de ce mouvement de basculement et conformément à l'invention, l'embout 3 subit avec le piston en U 7 un mouvement complémentaire de déplacement vers l'avant du fait de sont articulation avec ce piston sur les tourillons 17 et 18, ceux-ci, en même temps que l'embout se trouve poussé vers l'avant à l'encontre du ressort 5 par la rampe 43, coulissant dans les fentes 27 et 28 ménagées dans les faces latérales verticales 9 et 10 du corps 2.During this tilting movement and in accordance with the invention, the end piece 3 undergoes with the U-shaped piston 7 a complementary movement of forward movement due to its articulation with this piston on the pins 17 and 18, those here, at the same time as the end piece is pushed forward against the spring 5 by the ramp 43, sliding in the slots 27 and 28 formed in the vertical lateral faces 9 and 10 of the body 2.

Dans ces conditions, l'embout 3, en même temps qu'il tourne au cours de sa trajectoire autour des tourillons 17 et 18, est entrainé par le piston en U 7 auqeul il est lié par ces mêmes tourillons, de façon à accompagner le talon de la chaussure pendant l'opération de déchaussage, que celle-ci soit commandée par le levier 4, ou qu'elle résulte du déclenchement de la sécurité en cas de chute du skieur. Cette disposition permet en particulier d'accroître ce qu'il est connu d'appeler dans la technique la "course élastique" de la talonnière, en assurant lors du mouvement du talon de la chaussure du skieur d'une part, de l'embout d'autre part, de maintenir ces deux éléments en contact l'un avec l'autre sur une course sensiblement accrue en dépit de leurs trajectoires respectives inverses l'une de l'autre, ce qui améliore considérablement la sécurité de la fixation au déclenchement.Under these conditions, the nozzle 3, at the same time as it rotates during its trajectory around the pins 17 and 18, is driven by the U-shaped piston 7 to which it is linked by these same pins, so as to accompany the heel of the boot during the heaving operation, whether the latter is controlled by lever 4, or whether it results from the triggering of safety in the event of the skier falling. This arrangement makes it possible in particular to increase what is known in the art to call the "elastic stroke" of the heel piece, by ensuring during the movement of the heel of the skier's shoe on the one hand, the toe on the other hand, to maintain these two elements in contact with one another over a substantially increased stroke despite their respective trajectories which are opposite to each other, which considerably improves the security of the fixing on release .

Bien entendu, le fonctionnement de l'embout et notamment sa trajectoire de basculement vers le haut de la manière indiquée ci-dessus, est indépendant de la position relative du corps fixe 2 par rapport à la surface du ski S, cette position pouvant être ajustée par le mécanisme de réglage R selon les dimensions de la chaussure du skieur pour ménager entre la butée avant de la fixation (non représentée) et la talonnière un espace d'engagement suffisant.Of course, the operation of the endpiece and in particular its tilting trajectory upwards in the manner indicated above, is independent of the relative position of the fixed body 2 relative to the surface of the ski S, this position being able to be adjusted. by the adjustment mechanism R according to the dimensions of the skier's shoe to provide between the front stop of the binding (not shown) and the heel a sufficient engagement space.

Le mécanisme R adapté à cet effet est disposé dans un logement 51, ménagé à la partie inférieure du corps 2 en regard de la surface du ski S. Ce logement 51 est délimité vers l'avant du corps 2 par deux butées d'appui respectivement 52 et 53 entre lesquelles est monté un ressort hélicoïdal 54. Dans la butée 53 est prévu un passage 55 pour l'extrémité 56 d'une pièce ou lame élastique 57, cette extrémité 56 comportant, entre les butées 52 et 53, un bec 58 apte à coopérer avec l'extrémité du ressort 54, en permettant un montage élastique longitudinal de la pièce 57. Celle-ci présente un profil en zig-zag, et comprend à l'opposé de l'extrémité 56 un prolongement 59 dont le bord extrême est apte à venir s'engager dans l'un des crans 60 d'une crémaillère 61 fixée sur la surface S du ski dans le sens longitudinal de celui-ci, en permettant ainsi, selon la positon du cran réalisant l'immobilisation du corps 2, le réglage de la position axiale de ce dernier. Le ressort 54 pousse en effet la pièce 57 latérlement et tend à la faire basculer vers le haut. Normalement, l'extrémité 59 de la pièce 57 est immobilisée par rapport au cran 60 choisi au moyen d'un taquet pivotant 62, monté mobile autour d'un axe transversal 63 porté par le corps 2 et autour duquel est disposé un ressort en épingle 64 dont les extrémités respectivement 65 et 66 s'appuient pour l'une contre le fond du logement 51 et pour l'autre contre une dent 67 prolongeant le taquet 62 vers le bas en direction de l'extrémité 59. Dans la position illustrée sur la figure 1, le taquent 62 est représenté en position relevée où sa dent 67 appuie et verrouille dans le cran 60 l'extrémité 59 du ressort 57. En revanche, dans la position schématisée en traits mixtes sur la figure 9, le taquet 62 est représenté basculé vers l'arrière dans une position où la dent 67 libère le ressort 57, en autorisant le libre coulissement du corps 2 sur la crémaillère 61.The mechanism R adapted for this purpose is disposed in a housing 51, formed at the lower part of the body 2 facing the surface of the ski S. This housing 51 is delimited towards the front of the body 2 by two support stops respectively 52 and 53 between which is mounted a helical spring 54. In the stop 53 is provided a passage 55 for the end 56 of an elastic piece or blade 57, this end 56 comprising, between the stops 52 and 53, a spout 58 able to cooperate with the end of the spring 54, allowing a longitudinal elastic mounting of the part 57. The latter has a zig-zag profile, and comprises, opposite the end 56, an extension 59 whose edge extreme is capable of coming to engage in one of the notches 60 of a rack 61 fixed to the surface S of the ski in the longitudinal direction thereof, thus allowing, depending on the position of the notch realizing the immobilization of the body 2, adjusting the latter's axial position ier. The spring 54 indeed pushes the part 57 laterally and tends to cause it to tilt upwards. Normally, the end 59 of the part 57 is immobilized with respect to the notch 60 chosen by means of a pivoting cleat 62, mounted movably around a transverse axis 63 carried by the body 2 and around which is a pin spring 64, the ends of which respectively 65 and 66 bear for one against the bottom of the housing 51 and for the other against a tooth 67 extending the cleat 62 downwards towards the end 59. In the position illustrated on Figure 1, the tack 62 is shown in the raised position where its tooth 67 presses and locks in the notch 60 the end 59 of the spring 57. On the other hand, in the position shown diagrammatically in phantom in Figure 9, the stop 62 is shown tilted backwards in a position where the tooth 67 releases the spring 57, allowing the free sliding of the body 2 on the rack 61.

La figure 5 illustre une autre variante de réalisation qui tout en reprenant les dispositions essentielles de celles illustrées sur les figures précédentes, notamment en ce qui concerne l'articulation de l'embout pivotant 3 sur le piston en U 7 lui-même monté mobile axialement sur le corps 2, prévoit d'autres dispositions constructives.FIG. 5 illustrates another alternative embodiment which, while repeating the essential provisions of those illustrated in the preceding figures, in particular as regards the articulation of the pivoting end piece 3 on the U-shaped piston 7 itself mounted axially movable on body 2, provides other constructive arrangements.

Ainsi dans cette variante, le levier de commande 4 présente un profil général de triangle allongé, et vu de dessus (figure 6) deux ailes respectivement 68 et 69 réunies par un talon 70. Le levier 4 comporte par ailleurs dans ces ailes 68 et 69 deux pions latéraux en vis à vis 71 et 72. Ces pions latéraux en position basse de l'embout sont engagés dans des gorges 73 et 74 prévues dans la partie correspondante en regard de l'embout 3, celui-ci étant articulé sur le piston 7 autour des tourillons 17 et 18 de la manière déjà décrite en référence au premier mode de réalisation.Thus in this variant, the control lever 4 has a general profile of an elongated triangle, and seen from above (FIG. 6) two wings respectively 68 and 69 joined by a heel 70. The lever 4 also comprises in these wings 68 and 69 two lateral pins facing each other 71 and 72. These lateral pins in the low position of the endpiece are engaged in grooves 73 and 74 provided in the corresponding part opposite the endpiece 3, the latter being articulated on the piston 7 around the pins 17 and 18 in the manner already described with reference to the first embodiment.

Dans cette seconde variante, les pions 71 et 72 portés par le levier de commande 4 sont amenés à coulisser sur un étrier 75 disposé sur le corps 2 dans un plan transversal et présentant deux portées d'appui respectivement 76 et 77 pour ces pions. L'étrier 75 est appliqué contre un épaulement d'appui 78, prévu à la partie arrière du corps 2.In this second variant, the pins 71 and 72 carried by the control lever 4 are caused to slide on a stirrup 75 disposed on the body 2 in a transverse plane and having two bearing surfaces respectively 76 and 77 for these pins. The bracket 75 is applied against a support shoulder 78, provided at the rear part of the body 2.

Au cours du basculement dans le sens des aiguilles d'une montre du levier de commande 4, les pions 71 et 72 sont ainsi amenés, de chaque côté des ailes 68 et 69 du levier, à décrire les portées 76 et 77, en exerçant sur l'embout 3 un effort combiné, à la fois de relèvement vers le haut d'une part et de déplacement vers l'avant d'autre part, ce dernier mouvement étant à nouveau autorisé par le déplacement des tourillons 17 et 18 dans les fentes 27 et 28 prévues dans les faces latérales 9 et 10 du corps 2.During the tilting clockwise of the control lever 4, the pins 71 and 72 are thus brought, on each side of the wings 68 and 69 of the lever, to describe the ranges 76 and 77, by exerting on end piece 3 a combined effort, both of raising upwards on the one hand and of moving forward on the other hand, this latter movement being again authorized by the displacement of the pins 17 and 18 in the slots 27 and 28 provided in the lateral faces 9 and 10 of the body 2.

Dans une troisième variante de réalisation, illustrée sur les figures 7 à 9, le levier de commande 4 est ici directement articulé sur l'embout 3 autour d'un axe transversal 79. Il présente en outre, de chaque côté du corps 2, deux ailes planes parallèles (dont une seule 80 apparait sur les figures 7 et 9), agencées pour venir coopérer avec des galets, respectivement 81 et 82 portées par une tige 83 traversant le corps 2 dans la partie arrière 84 de ce dernier.In a third alternative embodiment, illustrated in FIGS. 7 to 9, the control lever 4 is here directly articulated on the end piece 3 around a transverse axis 79. It also has, on each side of the body 2, two parallel flat wings (of which only 80 appears in FIGS. 7 and 9), arranged to come to cooperate with rollers, respectively 81 and 82 carried by a rod 83 passing through the body 2 in the rear part 84 of the latter.

Chacun des galets 81 et 82 est engagé dans une rainure, telle que 85, prévue dans les ailes correspondantes 3a et 3b de l'embout 3, ces rainures présentant un profil coudé avec deux pentes inclinées conduisant à deux zones formant butées d'extrémité 86 et 87 pour l'embout 3, respectivement en position basse comme illustré sur la figure 7 ou en position maximale basculée vers le haut comme illustré sur la figure 9.Each of the rollers 81 and 82 is engaged in a groove, such as 85, provided in the corresponding wings 3a and 3b of the end piece 3, these grooves having a bent profile with two inclined slopes leading to two zones forming end stops 86 and 87 for the nozzle 3, respectively in the low position as illustrated in FIG. 7 or in the maximum position tilted upwards as illustrated in FIG. 9.

Mais dans cette variante de réalisation, le mouvement de basculement vers le haut par rapport au corps 2 s'accompange ici pour l'embout et le piston en U 7 qui lui est lié, d'un déplacement vers l'arrière du ski S, contraitrement aux dispositions envisagées dans les précédents modes de réalisation. En effet, du fait du profil adopté pour les rainures 85 parcourues par les galets 81 et 82, le basculement de l'embout exerce par l'intermédiaire de ses tourillons 17 et 18 un effort sur le piston en U 7 tel quel celui-ci recule, en comprimant le ressort 5 du mécanisme élastique. Celui-ci comporte à cet effet une portée d'appui transversale 88 qui forme dans ce cas, la partie centrale du piston 7 reliant les branches latérales 13 et 14. Dans cette variante et comme illustré sur la figure 8, le talon 8 du corps 2 est disposé vers l'arrière du ski et porte directement la tête de la vis 30, permettant d'ajuster la compression initiale du ressort 5 et le réglage de dureté au déclenchement de la talonnière de la façon déjà indiquée.But in this variant embodiment, the upward tilting movement relative to the body 2 is here combined for the end piece and the U-shaped piston 7 which is linked to it, a rearward movement of the ski S, contrary to the provisions envisaged in the previous embodiments. Indeed, due to the profile adopted for the grooves 85 traversed by the rollers 81 and 82, the tilting of the end piece exerts via its pins 17 and 18 a force on the U-shaped piston 7 as it is back, compressing the spring 5 of the elastic mechanism. This comprises for this purpose a transverse bearing surface 88 which in this case forms the central part of the piston 7 connecting the lateral branches 13 and 14. In this variant and as illustrated in FIG. 8, the heel 8 of the body 2 is disposed towards the rear of the ski and directly carries the head of the screw 30, making it possible to adjust the initial compression of the spring 5 and the hardness setting when the heel piece is triggered in the manner already indicated.

Dans cette variante de réalisation, le ressort 5 peut être plus faible que dans les modes de réalisation précédents, grâce à la disposition du centre de rotation de l'embout sur l'arrière de la talonnière. L'embout qui recule pendant le déchaussage, réduit dès lors l'effet de poussée vers l'avant. Il en résulte une limitation des frottements parasites sur la butée avant du ski en cas de chute et également une plus grande facilité pour chausser la talonnière, l'embout avançant sur celle-ci pendant l'opération de mise en place de la chaussure dans la fixation.In this alternative embodiment, the spring 5 may be weaker than in the previous embodiments, thanks to the arrangement of the center of rotation of the toe on the rear of the heel piece. The tip which moves back during heaving therefore reduces the forward pushing effect. This results in a limitation of parasitic friction on the front stop of the ski in the event of a fall and also makes it easier to put on the heel, the toe advancing thereon during the operation of fitting the boot into the fixation.

Quel que soit le mode de réalisation envisagé, les dispositions selon la présente invention établissant une liaison directe entre l'embout et le piston en U porté par le corps fixe 2, mobile à l'encontre du mécanisme élastique, apportent des avantages particulièrement significatifs. Notamment, l'articulation de l'embout sur le piston peut dans tous les cas être située au plus près de la face supérieure du corps fixe 2, afin d'accroître la course élastique de la talonnière, en procurant une trajectoire de l'embout sensiblement rectiligne où le centre de rotation de cet embout ainsi que le point de contact sur la rampe de sécurité sont situés sensiblement sur la même ligne, ce qui conduit à un fonctionnement mécanique plus simple et surtout plus fiable. En outre, ces dispositions permettant de concevoir l'embout de telle sorte que, grâce aux ailes latérales qu'il comporte et à travers lesquelles s'engageant les tourillons d'articulation, soit réalisée une bonne étanchéité de la talonnière par rapport au corps fixe, en évitant notamment que la glace ou la neige extérieures ne pénètrent à l'intérieur du mécanisme, en risquant de gêner, voire de détériorer celui-ci.Whatever the embodiment envisaged, the arrangements according to the present invention establishing a direct connection between the end piece and the U-shaped piston carried by the fixed body 2, movable against the elastic mechanism, provide particularly significant advantages. In particular, the articulation of the tip on the piston can in all cases be located as close as possible to the upper face of the fixed body 2, in order to increase the elastic stroke of the heel piece, by providing a trajectory for the tip. substantially straight where the center of rotation of this tip and the contact point on the safety ramp are located substantially on the same line, which leads to simpler and above all more reliable mechanical operation. In addition, these provisions making it possible to design the toe so that, thanks to the lateral wings which it comprises and through which engaging the articulation pins, a good tightness of the heel piece is achieved with respect to the fixed body. , in particular by preventing outside ice or snow from entering the interior of the mechanism, risking interfering with or even damaging it.

Claims (12)

1. A heel hold-down device for a safety ski binding, comprising a fixed body (2) locked in a position which is adjustable along the longitudinal dierction of the ski, said body having substantially the shape of a parallelipiped with two lateral vertical faces (9,10) and comprising an internal cavity (6) open at one end and closed at the other end in the axial direction of the ski, a heel retaining member (3) pivotally mounted about a transverse pivot pin (49) carried by said fixed body (2), said heel retaining member covering said body by means of two wings parallel to said lateral vertical faces (9, 10) of said body, said heel retaining member being adapted for holding down the heel of the ski boot in a locked position by means of two extensions provided for being respectively engaged above and below the boot heel, said heel retaining member being responsive to a spring-loaded resilient mechanism (M) carried by said fixed body (2) and housed in said internal cavity (6) thereof, characterized in that the spring (5) of the resilient mechanism (M) is compressed between the closed end of said cavity (6) and a movable U-shaped piston (7) slidable in the axial direction, the median portion (12) of said piston closing the open end (11) of said cavity (6), while the two flat lateral wings (13, 14) of said piston (7) are adapted to slide in parallel to said lateral faces (9, 10) of the fixed body (2), the two wings (3a, 3b) of the heel retaining member (3) being also parallel to the wings of the U-shaped piston, said heel retaining member being pivotally connected to said piston wings (13, 14) by means of two axially opposite and registering trunnions or screws (17, 18) extending through registering holes (25, 26; 15, 16) formed respectively in the wings of the heel retaining member and in the piston wings.
2. A heel hold-down device according to Claim. 1, characterized in that the said trunnions or screws (17, 18) by means of which the heel retaining member (3) is pivotally connected to the wings (13, 14) of the piston (7) are slidably mounted in longitudinal slots (27, 28) formed in the lateral faces (9, 10) of the fixed body (2).
3. A heel hold-down device according to Claim 1 or 2, characterized in that it comprises a control lever (4) pivotally connected to the fixed body (2) by means of a pivot pin (49) parallel to the transverse axis linking the heel retaining member (3) to the fixed body (2), said lever (4) having a curved lug (51) at one end, said lug being adapted for bearing against a registering inner surface (42) provided under the heel retaining member (3), whereby when said control lever is depressed said lug (51) is raised, and the heel retaining member is tipped upwardly.
4. A heel hold-down device according to any of the previous claims, characterized in that the heel retaining member (3) is provided with an inclined ramp (43) cooperating with a transverse roller (42) carried by the fixed body (2), said ramp having a substantially curvilinear contour (44) with hollow end portions (45-46) defining two stable positions for said heel retaining member, respectively a lower position and an upper position with respect to the fixed body.
5. A heel hold-down device according to Claim 1, characterized in that the control lever (4) is pivotally connected to the heel retaining member (3) by means of trunnions (17, 18) about which said heel retaining member is also pivotally connected to the U-shaped piston (7), said lever presenting two internal studs (71, 72) extending transversally in alignement with each other and disposed in sliding bearing contact with lateral surfaces (76, 77) provided in the fixed body in front of each stud, whereby the tilting movement of the control lever about said trunnions (17, 18) causes the studs (71, 72) to press against the lateral surfaces (76, 77), thus causing the piston to move forward.
6. A heel hold-down device according to Claim 5, characterized in that the two studs (71, 72) of the lever (4) engage two open grooves (73, 74) in the heel retaining member (3) when this member is in its lower position.
7. A heel hold-down device according to Claim 5, characterized in that said lateral bearing surfaces (76, 77) engaged by said studs (71, 72) of the control lever (4) are formed in the sides of a metal strap (75) straddling the fixed body (2) and urged against a projecting flat shoulder (78) provided on said fixed body.
8. A heel hold-down device according to Claim 1, characterized in that the lever (4) is pivotally connected to the heel retaining member (3) about a transverse pivot pin (79) disposed externally of the fixed body (2) and comprises a cam lobe (80) formed of two lateral flat extensions disposed on either side of the fixed body and contacting slidably, during the actuation of the lever, the two ends of a rod (83) parallel to said axis passing across the fixed body, these two rod ends having extensions in the form of rollers (81, 82) engaging arcuate cam grooves (85) formed in each one of said parallel wings (3a, 3b) of the heel retaining member (3).
9. A heel hold-down device according to any of Claims 1-8, characterized in that the fixed body (2) comprises a recess (51) formed under the cavity (6) containing the spring (5) of the resilient mechanism, said recess being open towards the ski surface (S) in which is disiposed a locking member (R) adapted to lock the fixed body in position relatively to a rack (61) secured to the ski, said locking member comprising a latch (62) pivotally mounted on a pin (63) and urged by a spring (64) wound around said pin and presenting two ends (65, 66) respectively engaging the fixed body and the latch, said latch comprising on its bottom end a tooth (67) adapted for cooperating with said rack (61) in a selected position along said rack.
10. A heel hold-down device according to Claim 9, characterized in that the tooth (67) of the latch (62) bears on one end of a metal part or blade (57) overlying said rack and having one end secured to the fixed body and its other end engaging one notch (60) of the rack as it is urged against it by the latch.
11. A heel hold-down device according to any of Claims 1-10, characterized in that the central portion (12) of the U-shaped piston (7) has a hole (29) receiving a captive set screw (30) cooperating with a flat nut (35) against which bears one end of the spring (5) of the resilient mechanism (M), the rotation of said screw allowing the initial compression of the spring to be set by adjusting the position of the nut relative to the central portion of the U-shaped piston.
12. A heel hold-down device according to Claim 11, characterized in that the flat nut (35) has a bent portion (36) parallel to the upper surface of the fixed body in which surface is provided a window (38) in registry with said bent portion through which can be read a scale (37) carried on the bent portion, for displaying the degree of compression of the spring (5) according to the nut position.
EP86402231A 1985-10-09 1986-10-08 Heel holder, particularly for a safety ski binding Expired - Lifetime EP0226479B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86402231T ATE59562T1 (en) 1985-10-09 1986-10-08 HEEL BRACKET, ESPECIALLY FOR SAFETY SKI BINDINGS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8514938A FR2588192B1 (en) 1985-10-09 1985-10-09 HEEL, ESPECIALLY FOR SKI SAFETY FASTENING
FR8514938 1985-10-09

Publications (2)

Publication Number Publication Date
EP0226479A1 EP0226479A1 (en) 1987-06-24
EP0226479B1 true EP0226479B1 (en) 1991-01-02

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EP86402231A Expired - Lifetime EP0226479B1 (en) 1985-10-09 1986-10-08 Heel holder, particularly for a safety ski binding

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US (1) US4773669A (en)
EP (1) EP0226479B1 (en)
AT (1) ATE59562T1 (en)
DE (1) DE3676469D1 (en)
FR (1) FR2588192B1 (en)

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IT1240250B (en) * 1990-02-06 1993-11-30 Nordica Spa SAFETY ATTACK, ESPECIALLY FOR SKIING
US5160159A (en) * 1990-03-21 1992-11-03 Nordica S.P.A. Safety fastening, particularly for skis
DE502005006479D1 (en) * 2005-09-16 2009-03-05 Tyrolia Technology Gmbh Device for positioning a ski binding having two ski binding parts on a ski
FR2906157B1 (en) * 2006-09-27 2009-05-15 Skis Rossignol Soc Par Actions FIXING TALONNIER FOR FIXED BODY SKI SHOE
NO341864B1 (en) * 2016-07-21 2018-02-12 Mhwirth As Fingerboard storage arrangement

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DE2027412C3 (en) * 1965-03-17 1980-08-14 Paul 8501 Oberasbach Unger Releasing heel hold-down for a ski binding
DE1703915A1 (en) * 1967-09-08 1972-03-09 Hannes Marker Heel holding device for safety ski bindings
FR2021055A1 (en) * 1968-10-19 1970-07-17 Unger Paul
US3733082A (en) * 1970-05-16 1973-05-15 Hope Kk Ski boot heel binding
FR2116767A5 (en) * 1970-12-07 1972-07-21 Carpano & Pons
FR2148679A5 (en) * 1971-07-30 1973-03-23 Beyl Jean Joseph Alfred
JPS4858929A (en) * 1971-11-25 1973-08-18
FR2338060A1 (en) * 1976-01-16 1977-08-12 Salomon & Fils F MANUAL RELEASE SAFETY FASTENING
AT376375B (en) * 1983-03-11 1984-11-12 Tyrolia Freizeitgeraete SAFETY SKI BINDING

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DE2659369A1 (en) * 1976-07-19 1978-01-26 Hope Kk SKIER BINDING

Also Published As

Publication number Publication date
ATE59562T1 (en) 1991-01-15
EP0226479A1 (en) 1987-06-24
FR2588192A1 (en) 1987-04-10
DE3676469D1 (en) 1991-02-07
US4773669A (en) 1988-09-27
FR2588192B1 (en) 1988-07-08

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