EP0521282A1 - Skiboot with pivot locking device of the upper quarter - Google Patents

Skiboot with pivot locking device of the upper quarter Download PDF

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Publication number
EP0521282A1
EP0521282A1 EP92108464A EP92108464A EP0521282A1 EP 0521282 A1 EP0521282 A1 EP 0521282A1 EP 92108464 A EP92108464 A EP 92108464A EP 92108464 A EP92108464 A EP 92108464A EP 0521282 A1 EP0521282 A1 EP 0521282A1
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EP
European Patent Office
Prior art keywords
cam
rod
ski boot
lever
boot according
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.)
Granted
Application number
EP92108464A
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German (de)
French (fr)
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EP0521282B1 (en
Inventor
Jean-Pierre Chemello
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.)
Salomon SAS
Original Assignee
Salomon SAS
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Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP0521282A1 publication Critical patent/EP0521282A1/en
Application granted granted Critical
Publication of EP0521282B1 publication Critical patent/EP0521282B1/en
Anticipated expiration legal-status Critical
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0427—Ski or like boots characterised by type or construction details
    • A43B5/047—Ski or like boots characterised by type or construction details provided with means to improve walking with the skiboot
    • A43B5/0474—Ski or like boots characterised by type or construction details provided with means to improve walking with the skiboot having a walk/ski position
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0427—Ski or like boots characterised by type or construction details
    • A43B5/0452—Adjustment of the forward inclination of the boot leg
    • A43B5/0454—Adjustment of the forward inclination of the boot leg including flex control; Dampening means
    • A43B5/0456—Adjustment of the forward inclination of the boot leg including flex control; Dampening means with the actuator being disposed at the rear side of the boot

Definitions

  • the present invention relates to an alpine ski boot, comprising a rigid shell, of which a shell bottom is surmounted by an at least partially articulated rod on the latter, having at least a front part and a rear part, and comprising itself opening means to allow the passage of the foot, a rod closure assembly on the lower leg comprising a clamping system with at least one traction element at least partially surrounding the rod to be tensioned by at least a tensioning device, fixed on at least one of the constituent parts of said rod.
  • the invention relates to means for immobilizing the rod in an anteroposterior direction constituted by a control member acting on an oscillating lever, around a transverse axis of a rear part of the rod, in two positions, one in which a lower end portion of the lever abuts against a rear stop of the bottom of the shell at the heel or of a position of inclination chosen towards the front of the rod, corresponding to a active position for skiing, and the other in which said lower part escapes the rear stop of the bottom of the hull to release the rod from any angular positioning constraint, the control member then acting on another part of the lever oscillating against an elastic member.
  • the disadvantage of such a system lies in the fact that, when walking for example, in the unlocked position of the system, the automatic locking can occur untimely, in particular by climbing a slope such as to cause the rod to move. forward. This is due to the absence of a stable unlocked position.
  • the manual locking means consist of a part movable in vertical translation at the upper end of an arm of the rocker, which can be actuated manually in an upward sliding movement, to extend said upper end of the rocker, and to cooperate with a notch formed in the upper part of a cutout of the rod to keep the rocker in the unlocked position.
  • a sliding control of said moving part has the effect of releasing the latter from the upper notch and allowing it to pivot, under the action of an elastic member, so that the lower end of said rocker comes into abutment on the abovementioned stop formed at the rear of the bottom of the shell for an active position.
  • the moving part In order to allow the moving part to move in translation, in one direction or the other, it has a protruding part constituting an external gripping member without which any control would be impossible.
  • Such locking means have a certain number of drawbacks, one of which is that, whatever the position of the movable member, when locked or unlocked, the external gripping member must always remain protruding to allow its access, and thereby constitutes an aggressive protruding part, likely to cause incidents.
  • Another drawback appears on the conceptual level, because it is necessary to provide, on the one hand a relatively bulky rocker because it supports the movable member and the gripping member which is integral therewith, and on the other hand a notch higher to spare on the rod.
  • this system always involves two operations to achieve a stable unlocking of the upper of the shoe, namely a rectilinear pushing movement perpendicular to the upper to rotate the rocker in a release movement of its lower end of the stop, and a pushing movement also rectilinear substantially parallel to said rod to engage the movable part under the upper notch.
  • the stop means is housed in a recess in the rod and has the form of a lever with two arms pivoting about an axis mounted in the rod while the control member is pivotally mounted outside the rod, near the end of one of the arms of said stop lever.
  • the unlocking of the rod is effected by tilting towards the outside of the control member which, coming into pressure on the corresponding arm of the stop lever, causes the release of the latter from its stop on the bottom of the hull.
  • To relock the rod in the ski practice position it is then necessary to bring the control member against the rod to allow the stop lever, under the action of the elastic return force, to be placed in position d 'commitment to its stop on the bottom of the hull.
  • the immobilizing device has a lever, integral with the upper, which is able to abut on an element of the shell of the shoe.
  • a lever is actuated from an external cursor capable of moving linearly and acting angularly on the position of the lever, from an end articulation point, or central.
  • this device has the disadvantage of being prominent on the rod at its rear part, and this, in a permanent and variable manner since the cursor is capable of being moved in translation. Furthermore, it always involves a voluntary maneuver on the part of the skier to go from the unlocked position to the locked position for skiing. Still, the momentary unlocking maneuver with the possibility of automatic relocking is not possible.
  • Another object of the invention is to propose a device whose control member is inserted in the volume of the rear part of the rod; for this purpose, the control member on the one hand, is accessible either by its periphery or by its visible face, and on the other hand, it affects a unique position on the rear part of the rod regardless of the maneuver carried out, permanent locking, momentary unlocking, or permanent unlocking.
  • the alpine ski boot has a shell bottom surmounted by a rod which has a front part and a rear part obtained in one or more pieces, the rear part of said rod on the one hand being at least partially pivoting in the postero-anterior and / or antero-posterior direction and on the other hand, comprising a device for immobilizing relative to said bottom of the active shell for at least one of said directions of pivoting by means of a abutment and / or attachment zone obtained on said bottom of the hull.
  • a feature of the invention is that the immobilization device is maneuverable by means of a control member of an oscillating lever which is constituted by a rotary element capable of journalling in a co-axial housing forming a bearing, practiced in said rear part of the rod, and in which is fixed, free to rotate, said rotary element, independently of the oscillating lever subjected to the action of a return spring;
  • the rotary element comprises an external gripping part which can be actuated manually in rotation, and an internal part acting by means of a cam on a probing member pivotally securing the oscillating lever, the two aforementioned parts being connected to each other by means of a cylindrical axis, housed in the bearing formed in the rod.
  • the cam is constituted by a cylindrical part centered on the rotary element, whether it is integral with the end of the internal part of the latter or with the oscillating lever. It is obvious that a feeler member intended to cooperate with the cam is then provided on the part which is not provided with said cam. Furthermore, the cam has on its cylindrical periphery at least one ramp with a progressive profile which extends from a low point of probing to a high point extending by a zone for retaining the probing member.
  • the difference in height between the bottom and top probing points is determined as a function of the engagement of the oscillating lever on the abutment or attachment zone obtained on the bottom of the hull and is at least sufficient to cause, by means of the feeler member pivoting of said oscillating lever at least corresponding to that of its engagement on said lower shell and obtaining the unlocking of the upper of the shoe.
  • the cam has two progressive ramps each extending from the bottom point of the latter to a common retaining area where they meet.
  • the actuator of the immobilization device associated with such a cam can thus be actuated either in the two directions of rotation in order to cause the unlocking of the upper of the shoe relative to the bottom of the shell.
  • the latter comprises from the bottom point and on one side, a progressive ramp as described above and on the other side, a vertical wall or abutment surface against which abuts the probing organ.
  • the operating member of the immobilization device can thus be actuated only in a direction of rotation corresponding to that in which the ramp extends.
  • the cam is obtained with two asymmetrical ramps which extend from and on either side of the low point.
  • one of the ramps is then intended to allow permanent unlocking and the other ramp, to allow momentary unlocking; for this purpose, the first ramp ends at the high point of unlocking of the cam by a retention zone of the feeler member while the second ramp extends at least up to the height of the high point of the first ramp but does not have a retention zone for the feeler member.
  • the device for immobilizing the rod can be unlocked and its return to the initial locking position can take place automatically as soon as the operating member of said cam is released;
  • the cam and / or the operating member can advantageously be fitted with an elastic return element.
  • the unstable unlocking ramp of the cam can be provided relatively inclined so that, under the pushing effect of the return spring of the oscillating lever, the support reaction of the member probing on the latter promotes its return to the initial position on the low point as soon as the operating member is released.
  • the rod immobilization device can be provided to immobilize the latter in the only antero-posterior pivoting direction or in both antero-posterior and postero-anterior pivoting directions relative to the bottom of the shell.
  • the oscillating lever comprises an end part which cooperates, for example with a stop zone obtained on the bottom of the hull; in the case of immobilization in both directions of pivoting, the oscillating lever comprises a lug or latching pin which cooperates with a corresponding notch made in the bottom of the shell, when the rear part of the rod is brought into the active position of skiing.
  • the light extends in the vertical direction above the latching stud over a certain length determined by the thickness of the latter and the desired travel stroke.
  • the shoe 1 designated globally, and represented in FIG. 1, is of the "rear entry" type.
  • the ski boot 1 comprises a rod 2 having a front part 3 or front cover, and a rear part 4 or rear cover, and a shell bottom 5 to which the rear part 4 of the rod 2 is connected by means of rivets 6, the front part 3 of the rod 2 consisting of an extension of the bottom of the shell 5.
  • a clamping system at three points 7a, 7b, 7c, and for closing the rod 2 on the lower leg of the skier comprises, in a manner known per se, three separate tensioning levers 8a, 8b, 8c which subject in tension traction elements such as cable loops 9a, 9b, 9c partially surrounding the rod 2 at its front part to be tensioned by said tensioning levers 8a, 8b, 8c, fixed for example on the side wings coming from the rear cover 4 for levers 8a and 8b and on the front of the shoe for lever 8c.
  • the shoe 1 is provided with an immobilizing device 35 of the upper 2, acting only in the anteroposterior direction; this immobilization device has a control member 10 acting on an oscillating lever 11 around a transverse axis 12 fixed in the rear part of the rod 2; the lever 11 oscillates in two positions, one in which a lower end portion 11a of the lever 11 abuts against a rear stop 13 of the bottom of the shell 5 at the heel for a position of inclination chosen towards the front of the rod, corresponding to an active position for skiing, and the other in which said lower part 11a escapes the rear stop 13 of the bottom of the shell 5 to release the rod from any angular positioning constraint, a member rotary control 10 then acting on another part 11b opposite the end 11a of the oscillating lever against an elastic member 14, which elastic member is disposed in a housing 15 formed in the lower part 11a of the lever 11 and acts in reaction against a lower part 16a of a stiffening beam 16 constituting the wall of
  • the axis 12 of the lever 11 is supported by a lug 16b secured to the beam d stiffening 16.
  • the rotary control member 10 of the oscillating lever 11 is able to pivot in a coaxial housing 17 forming a bearing formed in said rear part 4 of the rod 2, and in which said rotary member is fixed, free to rotate 10 independently of the swing lever; for this purpose, the rotary member 10 comprises respectively, arranged on either side of the wall of the beam 16, an external gripping part 18 which can be actuated manually in rotation, and an internal part 19 acting by means of a cam 19a on the part 11b of the oscillating lever 11, which in fact constitutes the feeler member of the cam, the two parts 18 and 19 being interconnected by means of a cylindrical seat 20 housed in the bearing 17 formed in rod 2.
  • the cam 19a is constituted by the very front end of the internal part 19 of the rotary control member 10, and acts on the end 11b of the lever 11 opposite its lower end 11a, between which ends 11a, 11b is located the transverse axis 12.
  • the front cam 19a of the control member 10 is preferably hollow, that is to say comparable to the end of a tube, and constituted by an inclined plane forming a ramp whose peripheral zone is in permanent contact with one of the ends 11b of the oscillating lever 11.
  • This cam has a low point 24 and a high point 25 which correspond respectively to a position of immobilization in the antero-posterior direction or, conversely, to a position of freedom angular of the latter, for a certain angular rotation in one direction or the other applied to the gripping part 18 of the rotary operating member 10.
  • the gripping part 18 of the rotary actuating member 10 is constituted by a flywheel with fins 18a, 18b arranged radially with respect to the longitudinal axis xx 'of said member 10 and forming between them a flat angle .
  • this gripping portion 18 of the operating member may be of any other shape, such as for example generally circular and in the form of a drum.
  • the gripping part 18 of the control member 10 is rigidly connected to its cylindrical axis 20, for example by means of a drive square 21. It is essential to note that the gripping part 18 of the rotary actuating member 10 generates a volume of revolution substantially corresponding to that of a housing 22, formed in the rod 2 in which takes place said gripping part 18, remaining in a single plane, without offset relative to the external wall of the rod 2, whatever the relative position of the cam 19a relative to the oscillating lever 11.
  • the cam 19a has, at its highest part, a housing 19c or retaining zone which corresponds to the high point of unlocking in the form of a bowl in which the corresponding end 11b of the lever 11 is capable of being positioned to provide a stable unlocked position.
  • This position is obtained by exerting a simple rotation in the direction F1 around the axis xx ', exerted on the fins 18a, 18b of the gripping part 18.
  • the immobilization device 36 differs essentially from the previous one in that the cam 40a, which is constituted by a cylindrical part centered on the rotary element 10 and whose cylindrical periphery comprises at at least one ramp, is formed on an intermediate part 40b of the lever 40 situated between the transverse axis 12A disposed at one end 40d of the lever 40, and another opposite end 40c of the same lever 40 capable of coming into contact with the stop 13 locking, said cam 40a being in permanent contact with a radial actuating finger 41, constituting the feeler member, integral with the control member 10A, said ramp comprising a low point 24 and a high point 25 which correspond, as before , respectively in a position of immobilization of the rod 2 in front, or conversely of angular freedom thereof, for a certain rotation in one direction or in the aut re applied to the gripping part 18 of the rotary actuating member 10A, acting on said cam 40a to cause said angular displacement of the lever 40.
  • the cam 40a which is constituted
  • the cam 40a may be provided, not on a part of the lever 40, but on an element of the internal part 19 of the rotary actuator 10A, for example at its end, in the form of a collar (not shown) forming an inclined plane.
  • the lever 40 has a probing member such as a lug radial to the cam 40a.
  • the cam 19a and / or 40a can have different profiles depending on the defined rotation direction and / or maneuver as well as the amplitude of the desired rotary movement to pass from a locking position to an unlocking position and / or vice versa.
  • the cam 19a is obtained with two symmetrical ramps 27 each extending progressively from the low point 24 to the retaining zone 19c passing through a high unlocking point 25.
  • the difference in height between the low point 24 and the high point 25, identified by the letter "A" in FIGS. 2a and 3a depends on the engagement of the lower end part 11a of the lever 11 against the stop 13 of the bottom of the shell 5, as illustrated in FIG. 1.
  • this difference in height in fact represents the value of the travel of the end 11b of the lever 11 necessary for unlock the rod 2 relative to the bottom of the shell 5; this difference in height "A” is always less than or equal to the difference in height between the low point 24 and the retaining area 19c identified by the letter "B".
  • the retaining area 19c is advantageously embodied by a notch in which the feeler member is intended to snap which guarantees a stable unlocking position of the latter. and to index said cam 19a in rotation in the unlocking position of the shoe upper 2.
  • the retaining area 19c can simply be constituted by a planar bearing surface.
  • the cam 19a In these two embodiments of the cam 19a (FIGS. 2, 2a, 3 and 3a), the latter can indifferently be operated, starting from the low point 24, in both directions of rotation to cause the unlocking of the rod. the shoe. To obtain an unstable unlocking position from such a cam, the retaining zone 19c is advantageously located beyond the unlocking point.
  • the cam can be returned to the locking position under the effect of an elastic return element, not shown, which can be interposed between the rotary member 10 and the wall of the rear cover 4 on which it is retained, such structure being compatible with a cam comprising a retaining notch 19c or a notch to guarantee the stable unlocked position when the latter is desired, despite the elastic return effect.
  • the cam 19a can also be obtained with two asymmetrical ramps 26 and 27 which extend on either side of the low point 24, one, 27, being intended to allow only the stable unlocking maneuver, and the other, 26, that the unstable unlocking maneuver; for this purpose, the ramp 26 extends clearly above the high unlocking point 25 up to a level 28 determining a difference in height "C" between the low points 24 and high 25 which is greater than the possibility of movement of the oscillating lever 11 authorized by construction in the rear part 4.
  • the end 11b of the lever rises on the ramp 26 and passes the high point 25 in the direction level 28 by pivoting the lever 11 until the latter comes into abutment, for example by its end portion 11a, against the wall 16 of the rod.
  • the cam 19a then tends to return to its initial locking position as described above.
  • the ramp 26 is very inclined so that a relatively low pressure of the feeler member, or end 11b, causes the bearing 19a to rotate by pressing reaction. 'said probing member stabilizes on the low point 24 of locking.
  • unlocking ramp 27 it is produced in a similar manner to that described with reference to Figures 2 to 3a above.
  • the cam 19a is designed to be operated only in one direction of rotation and is provided for this purpose with a stop surface 29 extending substantially vertically on one side of the low point 24 opposite a single release ramp 27.
  • the stable unlocking ramp 27 can extend indifferently in any of the directions. of rotation of said cam and cover a more or less significant angular sector; this latter characteristic also being valid for ramp 26.
  • the immobilization devices 35 and 36 which have just been described with reference to FIGS. 1 and 1A block the rear part 4 of the upper 2 of the shoe only in the direction of an anteroposterior pivoting around the connecting rivets 6 with the bottom of the shell 5; this blocking is obtained because the oscillating levers 11 and 40 have lower end portions 11a and 40c which simply come to bear on the latter.
  • immobilization devices similar to those 35 and 36 but the oscillating levers 11 and 40 of which are provided with parts which, by cooperating with a stop at the bottom of the hull, ensure blocking of the rear part 4 of the upper 2 of the shoe also in the postero-anterior direction.
  • FIG. 7 there is shown in Figure 7 such an immobilizer 37 incorporating the constituent elements of the immobilizer 35 of Figure 1 with the exception of the lower end portion 11a of the oscillating lever 11
  • This end portion 11a takes the form of a projection 42 and constitutes a latching pin intended to cooperate with a corresponding stop or notch 43 obtained in the bottom of the shell 5, when the immobilization device 37 is placed in the rod locking position and the rear cover 4 is brought into skiing position.
  • the operation of the immobilization device 37 for locking purposes only provides freedom of pivoting of the oscillating lever 11, which is, in this position of the rear cover 4 , in abutment against the outer wall of the shell bottom 5 by its lower end portion 42, the elastic member 14 then being compressed.
  • the elastic member 14 is made of an elastically compressible material instead of a helical spring as shown schematically in Figures 1 and 1A.
  • the immobilization device 38 is also of the anteroposterior locking type; this device incorporates the constituent elements of the immobilization device 36 of FIG. 1A with the exception of the lower end part 40c of the oscillating lever 40 which is made in the shape of a pin 42 in the same way as on the oscillating lever 11 of the device 37 in FIG. 7.
  • the immobilization devices 37 and / or 38 according to the invention can also cooperate with a stop or notch 43A of the bottom of the shell 5 extending, in the vertical direction, over a certain length, at least greater than the thickness of the pin 42, as shown in the example in FIG. 9
  • it is an immobilizing device 37 which is shown in the active position, the pin 42 being engaged in the light 43A.
  • the rear part 4, or rear cover, being centered on the connecting rivets 6, can thus pivot on its rivets for a certain angular value as a function of the length "H" of the light 43A extending above the tenon 42.
  • the shoes can have structures different from the preferred ones described with reference to FIG. 1 or 1A, and benefit in the same way from an immobilizing device 35, 36, 37 or 38 such as described above.

Abstract

According to the invention, such a boot (1) comprises an immobilising device (35) of the upper quarter (2) in an anteroposterior direction acting on an oscillating lever (11) capable of bearing on a stop (13) of the shell bottom (5). These means consist of a rotating member (10) with external control (18), an inner part (19) of which actuates, by means of a cam (19a), a feeler member (11b) belonging to the oscillating lever (11) in order to impart to the latter an angular deflection around its spindle (12) towards a locking or unlocking position relative to the stop (13) obtained on the shell bottom (5). <IMAGE>

Description

La présente invention concerne une chaussure de ski alpin, comportant une coque rigide, dont un bas de coque est surmonté d'une tige au moins partiellement articulée sur ce dernier, présentant au moins une partie antérieure et une partie postérieure, et comprenant elle-même des moyens d'ouverture pour permettre le passage du pied, un ensemble de fermeture de la tige sur le bas de jambe comprenant un système de serrage à au moins un élément de traction entourant au moins partiellement la tige pour être mis en tension par au moins un dispositif tendeur, fixé sur l'une au moins des parties constitutives de ladite tige.The present invention relates to an alpine ski boot, comprising a rigid shell, of which a shell bottom is surmounted by an at least partially articulated rod on the latter, having at least a front part and a rear part, and comprising itself opening means to allow the passage of the foot, a rod closure assembly on the lower leg comprising a clamping system with at least one traction element at least partially surrounding the rod to be tensioned by at least a tensioning device, fixed on at least one of the constituent parts of said rod.

Plus particulièrement, l'invention concerne des moyens d'immobilisation de la tige dans un sens antéro-postérieur constitués par un organe de commande agissant sur un levier oscillant, autour d'un axe transversal d'une partie arrière de la tige, selon deux positions, l'une dans laquelle une partie d'extrémité inférieure du levier vient en butée contre une butée arrière du bas de coque au niveau du talon ou d'une position d'inclinaison choisie vers l'avant de la tige, correspondant à une position active pour la pratique du ski, et l'autre dans laquelle ladite partie inférieure échappe à la butée arrière du bas de coque pour libérer la tige de toute contrainte de positionnement angulaire, l'organe de commande agissant alors sur une autre partie du levier oscillant à l'encontre d'un organe élastique.More particularly, the invention relates to means for immobilizing the rod in an anteroposterior direction constituted by a control member acting on an oscillating lever, around a transverse axis of a rear part of the rod, in two positions, one in which a lower end portion of the lever abuts against a rear stop of the bottom of the shell at the heel or of a position of inclination chosen towards the front of the rod, corresponding to a active position for skiing, and the other in which said lower part escapes the rear stop of the bottom of the hull to release the rod from any angular positioning constraint, the control member then acting on another part of the lever oscillating against an elastic member.

Pour ce faire, il est connu, par les documents EP-A- 086 908 et EP-A- 286 586, des moyens de verrouillage du type précité dans lesquels une bascule présente une extrémité inférieure qui est en butée sur une partie inférieure de la chaussure pour contraindre la tige de cette dernière à prendre une inclinaison dénommée couramment "angle d'avancée", nécessaire pour la pratique du ski ; une extrémité supérieure de ladite bascule présente la forme d'une touche à presser destinée à permettre un déverrouillage de la bascule lorsque le skieur veut prendre une position de repos en redressant la jambe, ou bien marcher.To do this, it is known from documents EP-A-086 908 and EP-A-286 586, locking means of the aforementioned type in which a rocker has a lower end which abuts on a lower part of the shoe to force the upper of the latter to take an inclination commonly called "advancing angle", necessary for skiing; an upper end of said rocker has the form of a press button intended to allow unlocking of the rocker when the skier wants to take a rest position by straightening the leg, or else walk.

Lorsque le skieur veut recommencer à skier, il effectue une flexion de la jambe pour ramener la tige en position inclinée et le verrouillage s'effectue alors de nouveau automatiquement sans intervention manuelle.When the skier wants to start skiing again, he bends his leg to bring the rod back to the inclined position and the locking is then carried out automatically again without manual intervention.

L'inconvénient d'un tel système réside dans le fait que, lors de la marche par exemple, en position déverrouillée du système, le verrouillage automatique peut subvenir de manière intempestive, notamment en gravissant une pente de nature à provoquer un débattement de la tige vers l'avant. Cela est dû à l'absence d'une position déverrouillée stable.The disadvantage of such a system lies in the fact that, when walking for example, in the unlocked position of the system, the automatic locking can occur untimely, in particular by climbing a slope such as to cause the rod to move. forward. This is due to the absence of a stable unlocked position.

On comprend aisément que des interventions manuelles répétées de déverrouillage peuvent s'avérer fastidieuses pour le skieur.It is easy to understand that repeated manual unlocking operations can be tedious for the skier.

Pour remédier à cet inconvénient majeur et d'importance, il a été proposé, des moyens manuels de verrouillage de la bascule précitée aptes à immobiliser cette dernière dans une position stable correspondant au déverrouillage de la tige de la chaussure comme cela est enseigné dans le brevet français FR-A 2 648 327. Selon ce dernier, les moyens manuels de verrouillage sont constitués par une pièce mobile en translation verticale à l'extrémité supérieure d'un bras de la bascule, actionnable manuellement dans un mouvement de coulissement vers le haut, pour prolonger ladite extrémité supérieure de la bascule, et venir coopérer avec un cran ménagé à la partie supérieure d'une découpe de la tige pour maintenir la bascule en position déverrouillée. Une commande en coulissement vers le bas de ladite pièce mobile a pour effet de libérer celle-ci du cran supérieur et lui permettre de pivoter, sous l'action d'un organe élastique, afin que l'extrémité inférieure de ladite bascule vienne en butée sur la butée précitée ménagée à l'arrière du bas de coque pour une position active.To remedy this major and important drawback, it has been proposed, manual means for locking the aforementioned lever capable of immobilizing the latter in a stable position corresponding to the unlocking of the upper of the shoe as taught in the patent. French FR-A 2 648 327. According to the latter, the manual locking means consist of a part movable in vertical translation at the upper end of an arm of the rocker, which can be actuated manually in an upward sliding movement, to extend said upper end of the rocker, and to cooperate with a notch formed in the upper part of a cutout of the rod to keep the rocker in the unlocked position. A sliding control of said moving part has the effect of releasing the latter from the upper notch and allowing it to pivot, under the action of an elastic member, so that the lower end of said rocker comes into abutment on the abovementioned stop formed at the rear of the bottom of the shell for an active position.

Afin de permettre la manoeuvre de la pièce mobile en translation, dans un sens ou dans l'autre, celle-ci présente une partie saillante constituant un organe de préhension externe sans quoi toute commande serait impossible.In order to allow the moving part to move in translation, in one direction or the other, it has a protruding part constituting an external gripping member without which any control would be impossible.

De tels moyens de verrouillage présentent un certain nombre d'inconvénients, dont l'un est que, quelle que soit la position de l'organe mobile, en verrouillage ou en déverrouillage, l'organe de préhension externe doit toujours demeurer saillant pour permettre son accès, et constitue par là-même une partie agressive en saillie, susceptible de provoquer des incidents. Un autre inconvénient apparaît sur le plan conceptionnel, car il est nécessaire de prévoir, d'une part une bascule relativement volumineuse du fait qu'elle supporte l'organe mobile et l'organe de préhension qui en est solidaire, et d'autre part un cran supérieur à ménager sur la tige.Such locking means have a certain number of drawbacks, one of which is that, whatever the position of the movable member, when locked or unlocked, the external gripping member must always remain protruding to allow its access, and thereby constitutes an aggressive protruding part, likely to cause incidents. Another drawback appears on the conceptual level, because it is necessary to provide, on the one hand a relatively bulky rocker because it supports the movable member and the gripping member which is integral therewith, and on the other hand a notch higher to spare on the rod.

Enfin, sur un plan pratique d'utilisation, ce système implique toujours deux manoeuvres pour réaliser un déverrouillage stable de la tige de la chaussure, à savoir un mouvement de poussée rectiligne perpendiculaire à la tige pour faire pivoter la bascule dans un mouvement de libération de son extrémité inférieure de la butée, et un mouvement de poussée également rectiligne sensiblement parallèle à ladite tige pour engager la pièce mobile sous le cran supérieur.Finally, on a practical level of use, this system always involves two operations to achieve a stable unlocking of the upper of the shoe, namely a rectilinear pushing movement perpendicular to the upper to rotate the rocker in a release movement of its lower end of the stop, and a pushing movement also rectilinear substantially parallel to said rod to engage the movable part under the upper notch.

Ce dernier inconvénient n'apparaît pas dans d'autre dispositifs connus d'immobilisation de la tige d'une chaussure où les moyens de verrouillage voire d'actionnement de la bascule sont indépendants de cette dernière. A titre d'exemple, on peut notamment citer la chaussure de ski décrite dans la demande de brevet français FR 2 619 317 où le dispositif d'immobilisation de la tige comporte un moyen d'arrêt qui d'une part, est soumis à l'action permanente d'une force élastique le poussant dans sa position de fermeture, et d'autre part, est actionnable en position d'ouverture à l'encontre de cette force par l'intermédiaire d'un organe de commande situé sur la tige.This latter drawback does not appear in other known devices for immobilizing the upper of a shoe where the means for locking or even actuating the lever are independent of the latter. By way of example, mention may in particular be made of the ski boot described in French patent application FR 2 619 317 where the device for immobilizing the upper comprises a stop means which on the one hand is subjected to the permanent action of an elastic force pushing it into its closed position, and on the other hand, can be actuated in the open position against this force by means of a control member located on the rod .

Tel que cela est illustré, le moyen d'arrêt est logé dans un évidement de la tige et présente la forme d'un levier à deux bras pivotant autour d'un axe monté dans la tige tandis que l'organe de commande est monté pivotant à l'extérieur de la tige, à proximité de l'extrémité d'un des bras dudit levier d'arrêt.As illustrated, the stop means is housed in a recess in the rod and has the form of a lever with two arms pivoting about an axis mounted in the rod while the control member is pivotally mounted outside the rod, near the end of one of the arms of said stop lever.

Dans ce type de construction, le déverrouillage de la tige s'effectue par basculement vers l'extérieur de l'organe de commande qui, venant en pression sur le bras correspondant du levier d'arrêt, provoque le dégagement de ce dernier de sa butée sur le bas de coque. Pour reverrouiller la tige en position de pratique du ski, il est ensuite nécessaire de ramener l'organe de commande contre la tige pour autoriser le levier d'arrêt, sous l'action de la force élastique de rappel, à se placer en position d'engagement vis-à-vis de sa butée sur le bas de coque.In this type of construction, the unlocking of the rod is effected by tilting towards the outside of the control member which, coming into pressure on the corresponding arm of the stop lever, causes the release of the latter from its stop on the bottom of the hull. To relock the rod in the ski practice position, it is then necessary to bring the control member against the rod to allow the stop lever, under the action of the elastic return force, to be placed in position d 'commitment to its stop on the bottom of the hull.

Comme cela apparaît clairement, un tel dispositif d'immobilisation présente l'inconvénient d'être très largement proéminent sur la partie arrière de la tige et de nécessiter une manoeuvre volontaire sur l'organe de commande pour revenir en position de verrouillage de la tige en vue de la pratique du ski.As is clear, such an immobilization device has the drawback of being very prominent on the rear part of the rod and of requiring voluntary maneuvering on the control member to return to the locking position of the rod for skiing.

On peut encore citer à titre d'exemple le dispositif d'immobilisation d'une tige de chaussure de ski décrit dans le modèle d'utilité allemand Gm 80 20 898. Selon ce document, le dispositif d'immobilisation présente un levier, solidaire de la tige, qui est apte à venir en butée sur un élément de la coque de la chaussure. Un tel levier est actionné à partir d'un curseur externe apte à se déplacer linéairement et à agir angulairement sur la position du levier, à partir d'un point d'articulation d'extrémité, ou central.We can also cite as an example the device for immobilizing a ski boot upper described in the German utility model Gm 80 20 898. According to this document, the immobilizing device has a lever, integral with the upper, which is able to abut on an element of the shell of the shoe. Such a lever is actuated from an external cursor capable of moving linearly and acting angularly on the position of the lever, from an end articulation point, or central.

De même que précédemment, ce dispositif présente l'inconvénient d'être proéminent sur la tige à sa partie arrière, et ce, de manière permanente et variable puisque le curseur est susceptible d'être déplacé en translation. Par ailleurs, il implique toujours une manoeuvre volontaire de la part du skieur pour aller de la position déverrouillée à la position verrouillée de pratique du ski. Encore, la manoeuvre de déverrouillage momentané avec possibilité de reverrouillage automatique n'est pas possible.As previously, this device has the disadvantage of being prominent on the rod at its rear part, and this, in a permanent and variable manner since the cursor is capable of being moved in translation. Furthermore, it always involves a voluntary maneuver on the part of the skier to go from the unlocked position to the locked position for skiing. Still, the momentary unlocking maneuver with the possibility of automatic relocking is not possible.

Le but de la présente invention est de remédier à ces divers inconvénients et propose à cet effet un dispositif d'immobilisation de la tige d'une chaussure de ski qui soit apte :

  • à immobiliser la tige de la chaussure par rapport au bas de coque en vue de la pratique du ski, de manière permanente et stable,
  • à déverrouiller de manière également permanente et stable de ladite tige en vue de permettre l'utilisation aisée de la chaussure pour la marche,
  • à déverrouiller de manière momentanée la tige simplement pour permettre le déchaussage ou pour permettre au skieur d'adopter une position debout de relaxation avec, avantageusement, reverrouillage automatique en position de pratique du ski dès relâchement de l'organe de commande et retour de la tige dans sa position angulaire initiale de pratique du ski.
The object of the present invention is to remedy these various drawbacks and to this end proposes a device for immobilizing the upper of a ski boot which is suitable:
  • to immobilize the upper of the boot relative to the bottom of the shell with a view to skiing, permanently and stable,
  • to also unlock said rod permanently and permanently in order to allow easy use of the shoe for walking,
  • to temporarily unlock the rod simply to allow heaving or to allow the skier to adopt a standing position of relaxation with, advantageously, automatic relocking in the ski practice position as soon as the control member is released and the rod returns in its initial angular position for skiing.

Un autre but de l'invention est de proposer un dispositif dont l'organe de commande s'insère dans le volume de la partie postérieure de la tige ; à cet effet, l'organe de commande d'une part, est accessible soit par son pourtour soit par sa face visible, et d'autre part, elle affecte une position unique sur la partie postérieure de la tige quelque soit la manoeuvre effectuée, verrouillage permanent, déverrouillage momentané, ou déverrouillage permanent.Another object of the invention is to propose a device whose control member is inserted in the volume of the rear part of the rod; for this purpose, the control member on the one hand, is accessible either by its periphery or by its visible face, and on the other hand, it affects a unique position on the rear part of the rod regardless of the maneuver carried out, permanent locking, momentary unlocking, or permanent unlocking.

Selon l'invention, la chaussure de ski alpin comporte un bas de coque surmonté d'une tige qui présente une partie antérieure et une partie postérieure obtenues en une ou plusieurs pièces, la partie postérieure de ladite tige d'une part, étant au moins partiellement pivotante dans le sens postéro-antérieur et/ou antéro-postérieur et d'autre part, comportant un dispositif d'immobilisation par rapport audit bas de coque actif pour au moins l'un desdits sens de pivotement par l'intermédiaire d'une zone de butée et/ou d'accrochage obtenue sur ledit bas de coque.According to the invention, the alpine ski boot has a shell bottom surmounted by a rod which has a front part and a rear part obtained in one or more pieces, the rear part of said rod on the one hand being at least partially pivoting in the postero-anterior and / or antero-posterior direction and on the other hand, comprising a device for immobilizing relative to said bottom of the active shell for at least one of said directions of pivoting by means of a abutment and / or attachment zone obtained on said bottom of the hull.

Une caractéristique de l'invention est que le dispositif d'immobilisation est manoeuvrable par l'intermédiaire d'un organe de commande d'un levier oscillant qui est constitué par un élément rotatif apte à tourillonner dans un logement co-axial formant palier, pratiqué dans ladite partie postérieure de la tige, et dans lequel est fixé, libre de rotation, ledit élément rotatif, indépendamment du levier oscillant soumis à l'action d'un ressort de rappel ; l'élément rotatif comporte une partie de préhension externe actionnable manuellement en rotation, et une partie interne agissant par l'intermédiaire d'une came sur un organe de palpage assujettissant en pivotement le levier oscillant, les deux parties précitées étant reliées entre elles par l'intermédiaire d'un axe cylindrique, logé dans le palier pratiqué dans la tige.A feature of the invention is that the immobilization device is maneuverable by means of a control member of an oscillating lever which is constituted by a rotary element capable of journalling in a co-axial housing forming a bearing, practiced in said rear part of the rod, and in which is fixed, free to rotate, said rotary element, independently of the oscillating lever subjected to the action of a return spring; the rotary element comprises an external gripping part which can be actuated manually in rotation, and an internal part acting by means of a cam on a probing member pivotally securing the oscillating lever, the two aforementioned parts being connected to each other by means of a cylindrical axis, housed in the bearing formed in the rod.

Une autre caractéristique de l'invention réside dans le fait que la came est constituée par une partie cylindrique axée sur l'élément rotatif, qu'elle soit solidaire de l'extrémité de la partie interne de ce dernier ou du levier oscillant. Il est évident qu'un organe de palpage destiné à coopérer avec la came est alors prévu sur la pièce qui n'est pas dotée de ladite came. Par ailleurs, la came présente sur son pourtour cylindrique au moins une rampe à profil progressif qui s'étend d'un point bas de palpage jusqu'à un point haut se prolongeant par une zone de retenue de l'organe de palpage. La différence de hauteur entre les points bas et haut de palpage est déterminée en fonction de l'engagement du levier oscillant sur la zone butée ou d'accrochage obtenue sur le bas de coque et est au moins suffisante pour provoquer, par l'intermédiaire de l'organe de palpage un pivotement dudit levier oscillant au moins correspondant à celui de son engagement sur ledit bas de coque et obtenir le déverrouillage de la tige de la chaussure.Another characteristic of the invention lies in the fact that the cam is constituted by a cylindrical part centered on the rotary element, whether it is integral with the end of the internal part of the latter or with the oscillating lever. It is obvious that a feeler member intended to cooperate with the cam is then provided on the part which is not provided with said cam. Furthermore, the cam has on its cylindrical periphery at least one ramp with a progressive profile which extends from a low point of probing to a high point extending by a zone for retaining the probing member. The difference in height between the bottom and top probing points is determined as a function of the engagement of the oscillating lever on the abutment or attachment zone obtained on the bottom of the hull and is at least sufficient to cause, by means of the feeler member pivoting of said oscillating lever at least corresponding to that of its engagement on said lower shell and obtaining the unlocking of the upper of the shoe.

Selon un premier mode de réalisation, la came présente deux rampes progressives s'étendant chacune à partir du point bas de cette dernière jusqu'à une zone de retenue commune où elles se rejoignent. L'organe de manoeuvre du dispositif d'immobilisation associé à une telle came peut ainsi être actionné indifféremment dans les deux sens de rotation en vue de provoquer le déverrouillage de la tige de la chaussure par rapport au bas de coque.According to a first embodiment, the cam has two progressive ramps each extending from the bottom point of the latter to a common retaining area where they meet. The actuator of the immobilization device associated with such a cam can thus be actuated either in the two directions of rotation in order to cause the unlocking of the upper of the shoe relative to the bottom of the shell.

Selon un deuxième mode de réalisation de la came précitée, cette dernière comporte à partir du point bas et d'un côté, une rampe progressive telle que décrite ci-avant et de l'autre côté, une paroi verticale ou surface de butée contre laquelle bute l'organe de palpage. Dans ce type de construction, l'organe de manoeuvre du dispositif d'immobilisation n'est ainsi actionnable que dans un sens de rotation correspondant à celui où s'étend la rampe.According to a second embodiment of the above-mentioned cam, the latter comprises from the bottom point and on one side, a progressive ramp as described above and on the other side, a vertical wall or abutment surface against which abuts the probing organ. In this type of construction, the operating member of the immobilization device can thus be actuated only in a direction of rotation corresponding to that in which the ramp extends.

Selon un troisième mode de réalisation, la came est obtenue avec deux rampes dissymétriques qui s'étendent à partir et de part et d'autre du point bas. Dans cette construction l'une des rampes est alors destinée à permettre un déverrouillage permanent et l'autre rampe, à permettre un déverrouillage momentané ; à cet effet, la première rampe se termine au point haut de déverrouillage de la came par une zone de retenue de l'organe de palpage tandis que la deuxième rampe s'étend au moins jusqu'à hauteur du point haut de la première rampe mais ne comporte pas de zone de retenue pour l'organe de palpage. De la sorte, lorsque la came est déplacée en rotation du côté de cette deuxième rampe, le dispositif d'immobilisation de la tige peut être déverrouillée et son retour en position initiale de verrouillage peut s'effectuer automatiquement dès que l'organe de manoeuvre de ladite came est relâché ; pour faciliter le retour en position de verrouillage, la came et/ou l'organe de manoeuvre peuvent être avantageusement équipés d'un élément de rappel élastique. Egalement, avec ou sans cet élément de rappel élastique, la rampe de déverrouillage instable de la came peut être prévue relativement inclinée pour que, sous l'effet de poussée du ressort de rappel du levier oscillant, la réaction d'appui de l'organe de palpage sur cette dernière favorise son retour en position initiale sur le point bas dès relâchement de l'organe de manoeuvre.According to a third embodiment, the cam is obtained with two asymmetrical ramps which extend from and on either side of the low point. In this construction, one of the ramps is then intended to allow permanent unlocking and the other ramp, to allow momentary unlocking; for this purpose, the first ramp ends at the high point of unlocking of the cam by a retention zone of the feeler member while the second ramp extends at least up to the height of the high point of the first ramp but does not have a retention zone for the feeler member. In this way, when the cam is moved in rotation on the side of this second ramp, the device for immobilizing the rod can be unlocked and its return to the initial locking position can take place automatically as soon as the operating member of said cam is released; to facilitate return to the locked position, the cam and / or the operating member can advantageously be fitted with an elastic return element. Also, with or without this elastic return element, the unstable unlocking ramp of the cam can be provided relatively inclined so that, under the pushing effect of the return spring of the oscillating lever, the support reaction of the member probing on the latter promotes its return to the initial position on the low point as soon as the operating member is released.

Dans ces exemples de construction d'une came avec deux rampes dissymétriques l'un seulement des sens de rotation appliqué à l'organe de manoeuvre, à droite ou à gauche détermine ainsi, soit le déverrouillage momentané du dispositif d'immobilisation avec retour automatique en position verrouillée dès relâchement, soit, le déverrouillage en permanence dudit dispositif grâce à la retenue de l'organe de palpage sur le point haut de ladite came.In these examples of the construction of a cam with two asymmetrical ramps, only one of the directions of rotation applied to the operating member, to the right or to the left, thus determines, namely the momentary unlocking of the immobilization device with automatic return in locked position upon release, that is to say, permanently unlocking said device by retaining the feeler member at the top point of said cam.

Toujours conformément à l'invention; le dispositif d'immobilisation de la tige peut être prévu pour immobiliser cette dernière selon le seul sens de pivotement antéro-postérieur ou selon les deux sens de pivotement antéro-postérieur et postéro-antérieur par rapport au bas de coque. Dans le cas d'immobilisation dans le sens antéro-postérieur seulement, le levier oscillant comporte une partie d'extrémité qui coopère, par exemple avec une zone de butée obtenue sur le bas de coque ; dans le cas d'immobilisation dans les deux sens de pivotement, le lever oscillant comporte un ergot ou tenon d'accrochage qui coopère avec une encoche correspondante réalisée dans le bas de coque, lorsque la partie postérieure de la tige est amenée en position active de pratique du ski. Egalement, pour le cas où il est nécessaire de laisser une certaine liberté en pivotement de la partie arrière de la tige et/ou de la tige avant immobilisation, notamment pour permettre un contrôle de la flexion de cette dernière en amplitude, par exemple vers l'avant, la lumière s'étend dans le sens vertical au-dessus du tenon d'accrochage sur une certaine longueur déterminée par l'épaisseur de ce dernier et la course de débattement souhaitée.Still in accordance with the invention; the rod immobilization device can be provided to immobilize the latter in the only antero-posterior pivoting direction or in both antero-posterior and postero-anterior pivoting directions relative to the bottom of the shell. In the case of immobilization in the anteroposterior direction only, the oscillating lever comprises an end part which cooperates, for example with a stop zone obtained on the bottom of the hull; in the case of immobilization in both directions of pivoting, the oscillating lever comprises a lug or latching pin which cooperates with a corresponding notch made in the bottom of the shell, when the rear part of the rod is brought into the active position of skiing. Also, in the case where it is necessary to leave a certain freedom in pivoting of the rear part of the rod and / or of the rod before immobilization, in particular to allow a control of the bending of the latter in amplitude, for example towards the 'before, the light extends in the vertical direction above the latching stud over a certain length determined by the thickness of the latter and the desired travel stroke.

D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description qui va suivre, en référence aux dessins annexés montrant, à titre d'exemples et non limitativement différents modes de construction de l'invention :

  • la figure 1 est une vue de côté d'une chaussure de ski dont une partie, en coupe verticale, montre le dispositif selon l'invention avec ses moyens d'immobilisation, représentés en position de verrouillage.
  • la figure 1A est une vue de côté d'une chaussure de ski analogue à celle de la figure 1 mais pourvu d'un autre dispositif toujours conforme à l'invention.
  • les figures 2, 3, 4, 5 et 6 et les figures annexes 2a, 3a, 4a, 5a et 6a, représentent différents modes de réalisation de la came qui est assujettie à l'organe de commande du dispositif d'immobilisation, laquelle came est montrée :
  • vue en perspective sur les figures 2 à 6,
  • vue développée à plat sur les figures 2a à 6a.
  • Les figures 7, 8 et 9 illustrent des variantes de réalisation du moyen d'arrêt du dispositif d'immobilisation selon l'invention vu en coupe verticale.
  • Les figures 10, 11, 12, 13, illustrent, vus de côté, différents types de chaussures réalisées conformément à l'invention.
Other characteristics and advantages of the invention will become apparent during the description which follows, with reference to the appended drawings showing, by way of examples and without limitation, various modes of construction of the invention:
  • Figure 1 is a side view of a ski boot, part of which, in vertical section, shows the device according to the invention with its immobilization means, shown in the locked position.
  • Figure 1A is a side view of a ski boot similar to that of Figure 1 but provided with another device still according to the invention.
  • Figures 2, 3, 4, 5 and 6 and the accompanying figures 2a, 3a, 4a, 5a and 6a, show different embodiments of the cam which is subject to the control member of the immobilization device, which cam is shown:
  • perspective view in FIGS. 2 to 6,
  • view developed flat in FIGS. 2a to 6a.
  • Figures 7, 8 and 9 illustrate alternative embodiments of the stop means of the immobilization device according to the invention seen in vertical section.
  • Figures 10, 11, 12, 13 illustrate, seen from the side, different types of shoes produced in accordance with the invention.

A titre d'exemple illustratif, non limitatif, la chaussure 1 désignée globalement, et représentée à la figure 1, est du type à "entrée arrière".By way of illustrative, nonlimiting example, the shoe 1 designated globally, and represented in FIG. 1, is of the "rear entry" type.

Conformément à l'invention, la chaussure de ski 1 comporte une tige 2 présentant une partie antérieure 3 ou capot avant, et une partie postérieure 4 ou capot arrière, et un bas de coque 5 auquel la partie postérieure 4 de la tige 2 est reliée par l'intermédiaire de rivets 6, la partie antérieure 3 de la tige 2 étant constituée d'un prolongement du bas de coque 5.According to the invention, the ski boot 1 comprises a rod 2 having a front part 3 or front cover, and a rear part 4 or rear cover, and a shell bottom 5 to which the rear part 4 of the rod 2 is connected by means of rivets 6, the front part 3 of the rod 2 consisting of an extension of the bottom of the shell 5.

Un système de serrage en trois points 7a, 7b, 7c, et de fermeture de la tige 2 sur le bas de jambe du skieur, comporte, de manière connue en soi, trois leviers tendeurs 8a, 8b, 8c distincts qui assujettissent en tension des éléments de traction tels que des boucles à câbles 9a, 9b, 9c entourant partiellement la tige 2 à sa partie antérieure pour être mis sous tension par lesdits leviers tendeurs 8a, 8b, 8c, fixés par exemple sur les ailes latérales venues du capot arrière 4 pour les leviers 8a et 8b et sur la partie antérieure de la chaussure pour le levier 8c.A clamping system at three points 7a, 7b, 7c, and for closing the rod 2 on the lower leg of the skier, comprises, in a manner known per se, three separate tensioning levers 8a, 8b, 8c which subject in tension traction elements such as cable loops 9a, 9b, 9c partially surrounding the rod 2 at its front part to be tensioned by said tensioning levers 8a, 8b, 8c, fixed for example on the side wings coming from the rear cover 4 for levers 8a and 8b and on the front of the shoe for lever 8c.

Selon l'exemple de réalisation représenté sur la figure 1, la chaussure 1 est pourvue d'un dispositif d'immobilisation 35 de la tige 2, agissant uniquement dans le sens antéro-postérieur ; ce dispositif d'immobilisation présente un organe de commande 10 agissant sur un levier oscillant 11 autour d'un axe transversal 12 fixé dans la partie arrière de la tige 2 ; le levier 11 oscille selon deux positions, l'une dans laquelle une partie d'extrémité inférieure 11a du levier 11 vient en butée contre une butée arrière 13 du bas de coque 5 au niveau du talon pour une position d'inclinaison choisie vers l'avant de la tige, correspondant à une position active pour la pratique du ski, et l'autre dans laquelle ladite partie inférieure 11a échappe à la butée arrière 13 du bas de coque 5 pour libérer la tige de toute contrainte de positionnement angulaire, un organe de commande rotatif 10 agissant alors sur une autre partie 11b opposée à l'extrémité 11a du levier oscillant à l'encontre d'un organe élastique 14, lequel organe élastique est disposé dans un logement 15 ménagé à la partie inférieure 11a du levier 11 et agit en réaction contre une partie inférieure 16a d'une poutre de rigidification 16 constituant la paroi du capot arrière 4 de la tige 2. L'axe 12 du levier 11 est supporté par une patte 16b solidaire de la poutre de rigidification 16. L'organe de commande rotatif 10 du levier oscillant 11 est apte à tourillonner dans un logement coaxial 17 formant palier pratiqué dans ladite partie arrière 4 de la tige 2, et dans lequel est fixé, libre de rotation, ledit organe rotatif 10 indépendamment du levier oscillant ; à cet effet, l'organe rotatif 10 comporte respectivement, disposées de part et d'autre de la paroi de la poutre 16 une partie de préhension externe 18 actionnable manuellement en rotation, et une partie interne 19 agissant par l'intermédiaire d'une came 19a sur la partie 11b du levier oscillant 11, qui constitue en fait l'organe de palpage de la came, les deux parties 18 et 19 étant reliées entre elles par l'intermédiaire d'une portée cylindrique 20 logée dans le palier 17 pratiqué dans la tige 2.According to the embodiment shown in Figure 1, the shoe 1 is provided with an immobilizing device 35 of the upper 2, acting only in the anteroposterior direction; this immobilization device has a control member 10 acting on an oscillating lever 11 around a transverse axis 12 fixed in the rear part of the rod 2; the lever 11 oscillates in two positions, one in which a lower end portion 11a of the lever 11 abuts against a rear stop 13 of the bottom of the shell 5 at the heel for a position of inclination chosen towards the front of the rod, corresponding to an active position for skiing, and the other in which said lower part 11a escapes the rear stop 13 of the bottom of the shell 5 to release the rod from any angular positioning constraint, a member rotary control 10 then acting on another part 11b opposite the end 11a of the oscillating lever against an elastic member 14, which elastic member is disposed in a housing 15 formed in the lower part 11a of the lever 11 and acts in reaction against a lower part 16a of a stiffening beam 16 constituting the wall of the rear cover 4 of the rod 2. The axis 12 of the lever 11 is supported by a lug 16b secured to the beam d stiffening 16. The rotary control member 10 of the oscillating lever 11 is able to pivot in a coaxial housing 17 forming a bearing formed in said rear part 4 of the rod 2, and in which said rotary member is fixed, free to rotate 10 independently of the swing lever; for this purpose, the rotary member 10 comprises respectively, arranged on either side of the wall of the beam 16, an external gripping part 18 which can be actuated manually in rotation, and an internal part 19 acting by means of a cam 19a on the part 11b of the oscillating lever 11, which in fact constitutes the feeler member of the cam, the two parts 18 and 19 being interconnected by means of a cylindrical seat 20 housed in the bearing 17 formed in rod 2.

Selon le présent exemple de réalisation, la came 19a est constituée par l'extrémité frontale même de la partie interne 19 de l'organe de commande rotatif 10, et agit sur l'extrémité 11b du levier 11 opposé à son extrémité inférieure 11a, entre lesquelles extrémités 11a, 11b est situé l'axe transversal 12.According to the present exemplary embodiment, the cam 19a is constituted by the very front end of the internal part 19 of the rotary control member 10, and acts on the end 11b of the lever 11 opposite its lower end 11a, between which ends 11a, 11b is located the transverse axis 12.

La came frontale 19a de l'organe de commande 10 est, de préférence creuse, c'est-à-dire comparable à l'extrémité d'un tube, et constituée par un plan incliné formant rampe dont la zone périphérique est en contact permanent avec l'une des extrémités 11b du levier oscillant 11. Cette came présente un point bas 24 et un point haut 25 qui correspondent respectivement à une position d'immobilisation dans le sens antéro-postérieur ou à l'inverse, à une position de liberté angulaire de celle-ci, pour une certaine rotation angulaire dans un sens ou dans l'autre appliquée à la partie de préhension 18 de l'organe de manoeuvre rotatif 10.The front cam 19a of the control member 10 is preferably hollow, that is to say comparable to the end of a tube, and constituted by an inclined plane forming a ramp whose peripheral zone is in permanent contact with one of the ends 11b of the oscillating lever 11. This cam has a low point 24 and a high point 25 which correspond respectively to a position of immobilization in the antero-posterior direction or, conversely, to a position of freedom angular of the latter, for a certain angular rotation in one direction or the other applied to the gripping part 18 of the rotary operating member 10.

Dans le présent exemple également, la partie de préhension 18 de l'organe de manoeuvre rotatif 10 est constituée par un volant à ailettes 18a, 18b disposées radialement par rapport à l'axe xx' longitudinal dudit organe 10 et formant entre elles un angle plat.Also in the present example, the gripping part 18 of the rotary actuating member 10 is constituted by a flywheel with fins 18a, 18b arranged radially with respect to the longitudinal axis xx 'of said member 10 and forming between them a flat angle .

Bien entendu, cette partie de préhension 18 de l'organe de manoeuvre pourra être de toute autre forme, comme par exemple globalement circulaire et en forme de tambour. Dans tous les cas, la partie de préhension 18 de l'organe de commande 10 est reliée de manière rigide à son axe cylindrique 20, par exemple par l'intermédiaire d'un carré d'entraînement 21. Il est essentiel de noter que la partie de préhension 18 de l'organe de manoeuvre rotatif 10 engendre un volume de révolution sensiblement correspondant à celui d'un logement 22, ménagé dans la tige 2 dans lequel prend place ladite partie de préhension 18, demeurant dans un plan unique, sans déport par rapport à la paroi externe de la tige 2, quelle que soit la position relative de la came 19a par rapport au levier oscillant 11.Of course, this gripping portion 18 of the operating member may be of any other shape, such as for example generally circular and in the form of a drum. In all cases, the gripping part 18 of the control member 10 is rigidly connected to its cylindrical axis 20, for example by means of a drive square 21. It is essential to note that the gripping part 18 of the rotary actuating member 10 generates a volume of revolution substantially corresponding to that of a housing 22, formed in the rod 2 in which takes place said gripping part 18, remaining in a single plane, without offset relative to the external wall of the rod 2, whatever the relative position of the cam 19a relative to the oscillating lever 11.

La retenue de l'organe de manoeuvre rotatif 10 sur la paroi 16a de la tige 2, laquelle paroi constitue ici une partie de la poutre de rigidification 16, est assurée par pincement de ladite paroi entre la partie de préhension 18 et un épaulement circulaire 19b de la partie interne 19 formant la came 19a.The retaining of the rotary actuator 10 on the wall 16a of the rod 2, which wall here constitutes part of the stiffening beam 16, is ensured by pinching said wall between the gripping part 18 and a circular shoulder 19b of the internal part 19 forming the cam 19a.

Egalement, la came 19a comporte, à sa partie la plus haute, un logement 19c ou zone de retenue qui correspond au point haut de déverrouillage en forme de cuvette dans laquelle est susceptible de se positionner l'extrémité correspondante 11b du levier 11 pour offrir une position déverrouillée stable. Cette position est obtenue en exerçant une simple rotation dans le sens F1 autour de l'axe xx', exercée sur les ailettes 18a, 18b de la partie de préhension 18.Also, the cam 19a has, at its highest part, a housing 19c or retaining zone which corresponds to the high point of unlocking in the form of a bowl in which the corresponding end 11b of the lever 11 is capable of being positioned to provide a stable unlocked position. This position is obtained by exerting a simple rotation in the direction F1 around the axis xx ', exerted on the fins 18a, 18b of the gripping part 18.

La rotation de la came 19a, ainsi provoquée, entraîne alors l'extrémité 11b du levier 11 dans un déplacement angulaire autour de son axe 12 selon des valeurs telles que la différence de hauteur entre le point bas 24 de la rampe et son point haut 25 correspond au moins à un angle de pivotement du levier 11 permettant à sa partie inférieure 11a d'échapper à la butée 13 pour prendre une position de déverrouillage apte à rendre libre le débattement angulaire de la partie postérieure 4 de la tige 2.The rotation of the cam 19a, thus caused, then causes the end 11b of the lever 11 in an angular displacement around its axis 12 according to values such as the difference in height between the low point 24 of the ramp and its high point 25 corresponds at least to a pivot angle of the lever 11 allowing its lower part 11a to escape from the stop 13 in order to assume an unlocking position capable of making free the angular movement of the rear part 4 of the rod 2.

Selon un autre mode de réalisation représenté à la figure 1A, le dispositif d'immobilisation 36 diffère essentiellement du précédent en ce que la came 40a, qui est constituée par une partie cylindrique axée sur l'élément rotatif 10 et dont le pourtour cylindrique comporte au moins une rampe, est ménagé sur une partie intermédiaire 40b du levier 40 située entre l'axe transversal 12A disposé à une extrémité 40d du levier 40, et une autre extrémité opposée 40c du même levier 40 susceptible de venir un contact avec la butée 13 en verrouillage, ladite came 40a étant en contact permanent avec un doigt radial de manoeuvre 41, constituant l'organe de palpage, solidaire de l'organe de commande 10A, ladite rampe comportant un point bas 24 et un point haut 25 qui correspondent, comme précédemment, respectivement à une position d'immobilisation de la tige 2 en avant, ou à l'inverse de liberté angulaire de celle-ci, pour une certaine rotation dans un sens ou dans l'autre appliquée à la partie de préhension 18 de l'organe de manoeuvre rotatif 10A, agissant sur ladite came 40a pour provoquer ledit déplacement angulaire du levier 40.According to another embodiment shown in FIG. 1A, the immobilization device 36 differs essentially from the previous one in that the cam 40a, which is constituted by a cylindrical part centered on the rotary element 10 and whose cylindrical periphery comprises at at least one ramp, is formed on an intermediate part 40b of the lever 40 situated between the transverse axis 12A disposed at one end 40d of the lever 40, and another opposite end 40c of the same lever 40 capable of coming into contact with the stop 13 locking, said cam 40a being in permanent contact with a radial actuating finger 41, constituting the feeler member, integral with the control member 10A, said ramp comprising a low point 24 and a high point 25 which correspond, as before , respectively in a position of immobilization of the rod 2 in front, or conversely of angular freedom thereof, for a certain rotation in one direction or in the aut re applied to the gripping part 18 of the rotary actuating member 10A, acting on said cam 40a to cause said angular displacement of the lever 40.

Bien entendu, la came 40a, citée dans le présent mode de réalisation, pourra être ménagée, non pas sur une partie du levier 40, mais sur un élément de la partie interne 19 de l'organe de manoeuvre rotatif 10A, par exemple à son extrémité, sous forme de collerette (non représentée) formant un plan incliné. Dans ce cas, le levier 40 présente quant à lui un organe de palpage tel qu'un ergot radial à la came 40a.Of course, the cam 40a, cited in this embodiment, may be provided, not on a part of the lever 40, but on an element of the internal part 19 of the rotary actuator 10A, for example at its end, in the form of a collar (not shown) forming an inclined plane. In this case, the lever 40 has a probing member such as a lug radial to the cam 40a.

Conformément à l'invention, la came 19a et/ou 40a peut présenter des profils différents en fonction du et/ou des sens de manoeuvre en rotation définis ainsi que de l'amplitude du mouvement rotatoire souhaité pour passer d'une position de verrouillage à une position de déverrouillage et/ou vice versa.In accordance with the invention, the cam 19a and / or 40a can have different profiles depending on the defined rotation direction and / or maneuver as well as the amplitude of the desired rotary movement to pass from a locking position to an unlocking position and / or vice versa.

Dans les figures 2 à 6 et 2a à 6a, il est justement illustré à titre d'exemple, plusieurs modes de réalisation du profil d'une came 19a du type de celle décrite succinctement à la figure 1 ; ces modes de réalisation sont évidemment applicables à une came 40a du dispositif de la figure 1A.In Figures 2 to 6 and 2a to 6a, it is precisely illustrated by way of example, several embodiments of the profile of a cam 19a of the type described briefly in Figure 1; these embodiments are obviously applicable to a cam 40a of the device of FIG. 1A.

Sur les figures 2, 2a et 3, 3a, la came 19a est obtenue avec deux rampes symétriques 27 s'étendant, chacune, progressivement du point bas 24 jusqu'à la zone de retenue 19c en passant par un point haut 25 de déverrouillage. Comme on l'a expliqué précédemment, la différence de hauteur entre le point bas 24 et le point haut 25, repéré par la lettre "A" sur les figures 2a et 3a, est fonction de l'engagement de la partie d'extrémité inférieure 11a du levier 11 contre la butée 13 du bas de coque 5, tel qu'illustré sur la figure 1. Conformément à l'invention, cette différence de hauteur représente en fait la valeur du débattement de l'extrémité 11b du levier 11 nécessaire pour déverrouiller la tige 2 par rapport au bas de coque 5 ; cette différence de hauteur "A" est toujours inférieure ou égale à la différence de hauteur entre le point bas 24 et la zone de retenue 19c repérée par la lettre "B". Dans le mode de réalisation de la came 19a des figures 2 et 2a, la zone de retenue 19c est avantageusement matérialisée par une encoche dans laquelle l'organe de palpage est destiné à s'encliqueter ce qui garantit une position stable de déverrouillage de ce dernier et d'indexer en rotation ladite came 19a en position de déverrouillage de la tige 2 de chaussure. Bien entendu, tel que cela est réalisé sur les figures 3 et 3a, la zone de retenue 19c peut simplement être constituée par une surface d'appui plane. Dans ces deux exemples de réalisation de la came 19a (figures 2, 2a,, 3 et 3a), cette dernière peut indifféremment être manoeuvrée, à partir du point bas 24, dans les deux sens de rotation pour provoquer le déverrouillage de la tige de la chaussure. Pour obtenir une position de déverrouillage instable à partir d'une telle came, la zone de retenue 19c est avantageusement située au-delà du point de déverrouillage. De la sorte, lorsque la came 19c est seulement tournée de son point bas 24 à son point haut 25 à l'aide de l'organe rotatif 10 puis relâchée avant d'atteindre la zone de retenue 19c, la tige de la chaussure se trouve alors momentanément déverrouillée à l'instant où l'organe de palpage 11b atteint ledit point haut 25 ; après relâchement de l'organe de commande rotatif 10, la came 19c est alors susceptible de revenir en position de verrouillage, sous l'effet de poussée de l'organe de palpage sur la rampe correspondante de cette dernière. Egalement, la came peut être rappelée en position de verrouillage sous l'effet d'un élément de rappel élastique, non représenté, pouvant être interposé entre l'organe rotatif 10 et la paroi du capot arrière 4 sur lequel il est retenu, une telle structure étant compatible avec une came comportant une encoche de retenue 19c ou un cran pour garantir la position déverrouillée stable lorsque cette dernière est souhaitée, malgré l'effet de rappel élastique.In FIGS. 2, 2a and 3, 3a, the cam 19a is obtained with two symmetrical ramps 27 each extending progressively from the low point 24 to the retaining zone 19c passing through a high unlocking point 25. As explained previously, the difference in height between the low point 24 and the high point 25, identified by the letter "A" in FIGS. 2a and 3a, depends on the engagement of the lower end part 11a of the lever 11 against the stop 13 of the bottom of the shell 5, as illustrated in FIG. 1. According to the invention, this difference in height in fact represents the value of the travel of the end 11b of the lever 11 necessary for unlock the rod 2 relative to the bottom of the shell 5; this difference in height "A" is always less than or equal to the difference in height between the low point 24 and the retaining area 19c identified by the letter "B". In the embodiment of the cam 19a in FIGS. 2 and 2a, the retaining area 19c is advantageously embodied by a notch in which the feeler member is intended to snap which guarantees a stable unlocking position of the latter. and to index said cam 19a in rotation in the unlocking position of the shoe upper 2. Of course, as is done in Figures 3 and 3a, the retaining area 19c can simply be constituted by a planar bearing surface. In these two embodiments of the cam 19a (FIGS. 2, 2a, 3 and 3a), the latter can indifferently be operated, starting from the low point 24, in both directions of rotation to cause the unlocking of the rod. the shoe. To obtain an unstable unlocking position from such a cam, the retaining zone 19c is advantageously located beyond the unlocking point. In this way, when the cam 19c is only turned from its low point 24 to its high point 25 using the rotary member 10 and then released before reaching the retaining zone 19c, the upper of the shoe is then momentarily unlocked at the moment when the feeler member 11b reaches said high point 25; after release of the rotary control member 10, the cam 19c is then capable of returning to the locked position, under the pushing effect of the feeler member on the corresponding ramp of the latter. Also, the cam can be returned to the locking position under the effect of an elastic return element, not shown, which can be interposed between the rotary member 10 and the wall of the rear cover 4 on which it is retained, such structure being compatible with a cam comprising a retaining notch 19c or a notch to guarantee the stable unlocked position when the latter is desired, despite the elastic return effect.

Toujours selon l'invention, et tel qu'illustré sur les figures 4, 4a, 5, et 5a, la came 19a peut également être obtenue avec deux rampes dissymétriques 26 et 27 qui s'étendent de part et d'autre du point bas 24, l'une, 27, étant destinée à ne permettre que la manoeuvre de déverrouillage stable, et l'autre, 26, que la manoeuvre de déverrouillage instable ; à cet effet, la rampe 26 s'étend nettement au-dessus du point haut 25 de déverrouillage jusqu'à un niveau 28 déterminant une différence de hauteur "C" entre les points bas 24 et haut 25 qui est supérieure à la possibilité de débattement du levier oscillant 11 autorisée par construction dans la partie postérieure 4. Ainsi, lorsque la came 19a est manoeuvrée en rotation dans le sens correspondant au déverrouillage instable, l'extrémité 11b du levier monte sur la rampe 26 et passe le point haut 25 en direction du niveau 28 en entraînant en pivotement le levier 11 jusqu'à ce que ce dernier vienne en butée, par exemple par sa partie d'extrémité 11a, contre la paroi 16 de la tige. Dès relâchement de l'organe de manoeuvre 10, la came 19a tend alors à revenir dans sa position initiale de verrouillage comme décrit précédemment. Avantageusement, tel que représenté sur les figures 5 et 5a, la rampe 26 est très inclinée de sorte qu'une pression relativement faible de l'organe de palpage, ou extrémité 11b, provoque par réaction d'appui la rotation de la came 19a jusqu'à ce que ledit organe de palpage se stabilise sur le point bas 24 de verrouillage.Still according to the invention, and as illustrated in FIGS. 4, 4a, 5, and 5a, the cam 19a can also be obtained with two asymmetrical ramps 26 and 27 which extend on either side of the low point 24, one, 27, being intended to allow only the stable unlocking maneuver, and the other, 26, that the unstable unlocking maneuver; for this purpose, the ramp 26 extends clearly above the high unlocking point 25 up to a level 28 determining a difference in height "C" between the low points 24 and high 25 which is greater than the possibility of movement of the oscillating lever 11 authorized by construction in the rear part 4. Thus, when the cam 19a is maneuvered in rotation in the direction corresponding to the unstable unlocking, the end 11b of the lever rises on the ramp 26 and passes the high point 25 in the direction level 28 by pivoting the lever 11 until the latter comes into abutment, for example by its end portion 11a, against the wall 16 of the rod. As soon as the operating member 10 is released, the cam 19a then tends to return to its initial locking position as described above. Advantageously, as shown in FIGS. 5 and 5a, the ramp 26 is very inclined so that a relatively low pressure of the feeler member, or end 11b, causes the bearing 19a to rotate by pressing reaction. 'said probing member stabilizes on the low point 24 of locking.

Concernant la rampe de déverrouillage 27, celle-ci est réalisée de manière analogue à celle décrite en référence aux figures 2 à 3a précédentes.Regarding the unlocking ramp 27, it is produced in a similar manner to that described with reference to Figures 2 to 3a above.

Dans l'exemple des figures 6 et 6a, la came 19a est prévue pour n'être manoeuvrée que dans un seul sens de rotation et est pourvue à cet effet d'une surface de butée 29 s'étendant sensiblement verticalement d'un côté du point bas 24 à l'opposé d'une seule rampe de déverrouillage 27.In the example of FIGS. 6 and 6a, the cam 19a is designed to be operated only in one direction of rotation and is provided for this purpose with a stop surface 29 extending substantially vertically on one side of the low point 24 opposite a single release ramp 27.

Dans tous les cas de réalisation d'une came à rampes dissymétriques, figures 4 et 5, ou d'une came à rampe unique, figure 6, la rampe de déverrouillage stable 27, pourra s'étendre indifféremment dans l'un quelconque des sens de rotation de ladite came et couvrir un secteur angulaire plus ou moins important ; cette dernière caractéristique étant également valable pour la rampe 26.In all cases of production of a cam with asymmetrical ramps, FIGS. 4 and 5, or of a single ramp cam, FIG. 6, the stable unlocking ramp 27, can extend indifferently in any of the directions. of rotation of said cam and cover a more or less significant angular sector; this latter characteristic also being valid for ramp 26.

Les dispositifs d'immobilisation 35 et 36 qui viennent d'être décrits en référence aux figures 1 et 1A bloquent la partie postérieure 4 de la tige 2 de la chaussure uniquement dans le sens d'un pivotement antéro-postérieur autour des rivets 6 de liaison avec le bas de coque 5 ; ce blocage est obtenu du fait que les leviers oscillants 11 et 40 comportent des parties inférieures d'extrémité 11a et 40c qui viennent simplement en appui sur cette dernière. Sans sortir du cadre de l'invention il est également envisageable de réaliser des dispositifs d'immobilisation analogues à ceux 35 et 36 mais dont les leviers oscillants 11 et 40 sont dotés de parties qui, en coopérant avec une butée du bas de coque, assurent un blocage de la partie postérieure 4 de la tige 2 de la chaussure également dans le sens postéro-antérieur.The immobilization devices 35 and 36 which have just been described with reference to FIGS. 1 and 1A block the rear part 4 of the upper 2 of the shoe only in the direction of an anteroposterior pivoting around the connecting rivets 6 with the bottom of the shell 5; this blocking is obtained because the oscillating levers 11 and 40 have lower end portions 11a and 40c which simply come to bear on the latter. Without departing from the scope of the invention, it is also conceivable to produce immobilization devices similar to those 35 and 36 but the oscillating levers 11 and 40 of which are provided with parts which, by cooperating with a stop at the bottom of the hull, ensure blocking of the rear part 4 of the upper 2 of the shoe also in the postero-anterior direction.

A titre d'exemple, on a représenté sur la figure 7 un tel dispositif d'immobilisation 37 reprenant les éléments constitutifs du dispositif d'immobilisation 35 de la figure 1 à l'exception de la partie d'extrémité inférieure 11a du levier oscillant 11. Cette partie d'extrémité 11a affecte la forme d'une saillie 42 et constitue un tenon d'accrochage destiné à coopérer avec une butée ou encoche 43 correspondante obtenue dans le bas de coque 5, lorsque le dispositif d'immobilisation 37 est mis en position de verrouillage de la tige et que le capot arrière 4 est amené en position de pratique du ski. En effet, tant que le capot arrière 4 reste basculé vers l'arrière, la manoeuvre du dispositif d'immobilisation 37 en vue du verrouillage ne procure que la liberté de pivotement du levier oscillant 11, lequel est, dans cette position du capot arrière 4, en appui contre la paroi extérieure du bas de coque 5 par sa partie d'extrémité inférieure 42, l'organe élastique 14 étant alors comprimé. Dans cette réalisation, l'organe élastique 14 est constitué d'un matériau élastiquement compressible au lieu d'un ressort hélicoïdal comme on l'a représenté schématiquement sur les figures 1 et 1A.For example, there is shown in Figure 7 such an immobilizer 37 incorporating the constituent elements of the immobilizer 35 of Figure 1 with the exception of the lower end portion 11a of the oscillating lever 11 This end portion 11a takes the form of a projection 42 and constitutes a latching pin intended to cooperate with a corresponding stop or notch 43 obtained in the bottom of the shell 5, when the immobilization device 37 is placed in the rod locking position and the rear cover 4 is brought into skiing position. Indeed, as long as the rear cover 4 remains tilted rearward, the operation of the immobilization device 37 for locking purposes only provides freedom of pivoting of the oscillating lever 11, which is, in this position of the rear cover 4 , in abutment against the outer wall of the shell bottom 5 by its lower end portion 42, the elastic member 14 then being compressed. In this embodiment, the elastic member 14 is made of an elastically compressible material instead of a helical spring as shown schematically in Figures 1 and 1A.

Sur la figure 8, le dispositif d'immobilisation 38 est aussi du type à blocage antéro-postérieur; ce dispositif reprend les éléments constitutifs du dispositif d'immobilisation 36 de la figure 1A à l'exception de la partie d'extrémité inférieure 40c du levier oscillant 40 qui est réalisé en forme de tenon 42 de la même manière que sur le levier oscillant 11 du dispositif 37 de la figure 7.In FIG. 8, the immobilization device 38 is also of the anteroposterior locking type; this device incorporates the constituent elements of the immobilization device 36 of FIG. 1A with the exception of the lower end part 40c of the oscillating lever 40 which is made in the shape of a pin 42 in the same way as on the oscillating lever 11 of the device 37 in FIG. 7.

Selon un autre mode de réalisation, les dispositifs d'immobilisation 37 et/ou 38 conformes à l'invention peuvent également coopérer avec une butée ou encoche 43A du bas de coque 5 s'étendant, dans le sens vertical, sur une certaine longueur, au moins supérieure à l'épaisseur du tenon 42, comme cela est représenté dans l'exemple de la figure 9 Dans cet exemple, c'est un dispositif d'immobilisation 37 qui est montré en position active, le tenon 42 étant engagé dans la lumière 43A. La partie postérieure 4, ou capot arrière, étant axée sur les rivets 6 de liaison, peut ainsi pivoter sur ses rivets pour une certaine valeur angulaire fonction de la longueur "H" de la lumière 43A s'étendant au-dessus du tenon 42.According to another embodiment, the immobilization devices 37 and / or 38 according to the invention can also cooperate with a stop or notch 43A of the bottom of the shell 5 extending, in the vertical direction, over a certain length, at least greater than the thickness of the pin 42, as shown in the example in FIG. 9 In this example, it is an immobilizing device 37 which is shown in the active position, the pin 42 being engaged in the light 43A. The rear part 4, or rear cover, being centered on the connecting rivets 6, can thus pivot on its rivets for a certain angular value as a function of the length "H" of the light 43A extending above the tenon 42.

Toujours dans le cadre de la présente invention, les chaussures peuvent présenter des structures différentes de celles préférentielles décrites en référence à la figure 1 ou 1A, et bénéficier de la même manière d'un dispositif d'immobilisation 35, 36, 37 ou 38 tel que ci-dessus décrit.Still within the framework of the present invention, the shoes can have structures different from the preferred ones described with reference to FIG. 1 or 1A, and benefit in the same way from an immobilizing device 35, 36, 37 or 38 such as described above.

Il peut s'agir en effet :

  • en figure 10, d'une chaussure 1A du type à "entrée mixte" ou à "entrée centrale" sur laquelle une languette transversale 30, recouvre au moins partiellement une autre languette 30a, ces languettes étant venues du bas de coque 5 et appartenant à la partie antérieure 3A de latige 2A de la chaussure 1A ; dans cette chaussure, non seulement la partie arrière 4A est escamotable, mais également, les languettes transversales 30 et 30a qui s'étendent sur la zone antérieure supérieure du pied ce qui permet d'une part l'ouverture de cette zone pour l'introduction ou l'extraction du pied par écartement desdites languettes, et d'autre part, la fermeture de ladite zone par recouvrement de la languette 30 sur celle 30a qui lui est opposée à l'aide d'un système de serrage 7c par exemple.
  • en figure 11, d'une chaussure 1B du type à "entrée arrière" ; dans l'exemple de construction représenté, le débattement dans le sens postéro-antérieur du capot avant 31 est contrôlé par un curseur de contrôle de flexion 32 tandis que le dispositif d'immobilisation bloque la tige dans le sens antéro-postérieur.
It can indeed be:
  • in FIG. 10, of a shoe 1A of the “mixed entry” or “central entry” type on which a transverse tongue 30, at least partially covers another tongue 30a, these tongues having come from the bottom of the shell 5 and belonging to the front part 3A of the leg 2A of the shoe 1A; in this shoe, not only the rear part 4A is retractable, but also, the transverse tabs 30 and 30a which extend over the upper front region of the foot, which allows on the one hand the opening of this zone for introduction or the extraction of the foot by spacing said tabs, and on the other hand, the closing of said zone by covering the tab 30 on that 30a which is opposite to it using a clamping system 7c for example.
  • in FIG. 11, of a shoe 1B of the "rear entry"type; in the example of construction shown, the movement in the posterior-anterior direction of the front cover 31 is controlled by a bending control slider 32 while the immobilization device blocks the rod in the antero-posterior direction.

Bien entendu, en l'absence du curseur 32, il s'agirait également d'une chaussure à "entrée mixte" dont les capots avant et arrière, respectivement 3B, 4B, seraient aptes à s'écarter simultanément ou individuellement ;

  • en figure 12, d'une chaussure 1C, du type à "entrée mixte" ou à "entrée par le dessus" dans laquelle le capot arrière 4C est susceptible de basculer vers l'arrière, tandis que le capot avant 3C, remplaçant les ailes de recouvrement 30 de la chaussure 1A (figure 10) constitue un capot d'un seul tenant, articulé dans la zone du bout de la chaussure 1C par l'intermédiaire d'une liaison articulée 33, et dont le basculement permet le chaussage ou le déchaussage ;
  • en figure 13, d'une chaussure 1D du type également à "entrée mixte" ou à "entrée par le dessus", comme la chaussure 1C (figure 12), mais les moyens de fermeture du capot avant 3D, par rapport au capot arrière 4D, s'effectuent par des moyens de serrage 7 assurant simplement la connexion entre lesdits capots 3D et 4D sans recouvrement important des ailes du capot arrière sur le capot avant tel que cela a été décrit en référence aux chaussures des figures 1 et 1A.
Of course, in the absence of the cursor 32, it would also be a shoe with "mixed entry", the front and rear covers, respectively 3B, 4B, would be able to move apart simultaneously or individually;
  • in FIG. 12, of a shoe 1C, of the type with “mixed entry” or with “entry from above” in which the rear cover 4C is capable of tilting towards the rear, while the front cover 3C, replacing the wings covering 30 of shoe 1A (FIG. 10) constitutes a cover in one piece, articulated in the area of the toe of shoe 1C by means of an articulated link 33, and the tilting of which allows the shoe to be put on or heaving;
  • in FIG. 13, of a shoe 1D of the type also with “mixed entry” or “entry from above”, like shoe 1C (FIG. 12), but the means for closing the front cover 3D, relative to the rear cover 4D, are effected by clamping means 7 simply ensuring the connection between said 3D hoods and 4D without significant overlap of the wings of the rear cover on the front cover as has been described with reference to the shoes of Figures 1 and 1A.

Claims (12)

Chaussure de ski alpin comportant un bas de coque (5) surmonté d'une tige (2, 2A, 2B, 2C, 2D) qui présente une partie antérieure (3, 3A, 3B, 3C, 3D) et une partie postérieure (4, 4A, 4B, 4C, 4D) obtenues en une ou plusieurs pièces, la partie postérieure de ladite tige (2, 2A, 2B, 2C, 2D) d'une part, étant au moins partiellement pivotante dans le sens postéro-antérieur et/ou antéro-postérieur et d'autre part, comportant un dispositif d'immobilisation (35, 36, 37, 38) par rapport au bas de coque (5) actif pour au moins l'un des sens de pivotement de la partie postérieure (4, 4A, 4B, 4C, 4D) de la tige (2, 2A, 2B, 2C, 2D), par l'intermédiaire d'une zone de butée (13, 43, 43A) obtenue sur ledit bas de coque (5) caractérisée par le fait que le dispositif d'immobilisation (35, 36, 37, 38) est manoeuvrable par l'intermédiaire d'un organe de commande rotatif (10) d'un levier oscillant (11, 40) pivotant sur un axe transversal (12, 12A), cet organe de commande rotatif (10) étant apte à tourillonner dans un logement coaxial (17) formant palier, pratiqué dans la partie postérieure (4, 4A, 4B, 4C, 4D) de la tige (2, 2A, 2B, 2C, 2D), et dans lequel est fixé, libre de rotation, ledit organe rotatif (10), indépendamment du levier oscillant (11, 40) soumis à l'action d'un ressort de rappel (14), lequel organe rotatif présente une partie de préhension externe (18) et une partie interne (19) agissant, par l'intermédiaire d'une came (19a, 40a) coopérant avec un organe de palpage (11b, 41), sur le levier oscillant (11, 40), ainsi assujetti en pivotement par rapport à la zone de butée (13, 43, 43A) du bas de coque (5).Alpine ski boot comprising a shell bottom (5) surmounted by a rod (2, 2A, 2B, 2C, 2D) which has a front part (3, 3A, 3B, 3C, 3D) and a rear part (4 , 4A, 4B, 4C, 4D) obtained in one or more pieces, the rear part of said rod (2, 2A, 2B, 2C, 2D) on the one hand, being at least partially pivotable in the postero-anterior direction and / or anteroposterior and on the other hand, comprising an immobilization device (35, 36, 37, 38) relative to the bottom of the shell (5) active for at least one of the directions of pivoting of the posterior part (4, 4A, 4B, 4C, 4D) of the rod (2, 2A, 2B, 2C, 2D), by means of a stop zone (13, 43, 43A) obtained on said bottom of the shell ( 5) characterized in that the immobilization device (35, 36, 37, 38) is operable by means of a rotary control member (10) of an oscillating lever (11, 40) pivoting on a transverse axis (12, 12A), this rotary control member (10) is t able to journal in a coaxial housing (17) forming a bearing, made in the rear part (4, 4A, 4B, 4C, 4D) of the rod (2, 2A, 2B, 2C, 2D), and in which is fixed , free to rotate, said rotary member (10), independently of the oscillating lever (11, 40) subjected to the action of a return spring (14), which rotary member has an external gripping part (18) and a internal part (19) acting, by means of a cam (19a, 40a) cooperating with a feeler member (11b, 41), on the oscillating lever (11, 40), thus pivotally secured relative to the stop zone (13, 43, 43A) at the bottom of the hull (5). Chaussure de ski selon la revendication 1 caractérisée par le fait que la came (19a, 40a) est constituée par une partie cylindrique axée sur l'organe rotatif (10) et en ce qu'elle présente sur son pourtour cylindrique au moins une rampe (27) à profil progressif qui s'étend à partir d'un point bas (24) jusqu'à un point haut (25) se prolongeant par une zone de retenue (19c), la came (19a, 40a) coopérant avec l'organe de palpage (11b, 41) auquel est assujetti le levier oscillant (11, 40).Ski boot according to claim 1 characterized in that the cam (19a, 40a) is constituted by a cylindrical part centered on the rotary member (10) and in that it has on its cylindrical periphery at least one ramp ( 27) with a progressive profile which extends from a low point (24) to a high point (25) extending by a retaining zone (19c), the cam (19a, 40a) cooperating with the feeler member (11b, 41) to which the oscillating lever (11, 40) is attached. Chaussure de ski selon la revendication 2 caractérisée par le fait que la différence de hauteur entre les points bas (24) et haut (25) est déterminée en fonction de l'engagement de l'extrémité (11a, 40c) du levier oscillant (11, 40) sur la zone de butée (13, 43, 43A) obtenue sur le bas de coque (5) et est au moins suffisante pour provoquer, par l'intermédiaire de l'organe de palpage (11b, 41), un pivotement dudit levier (11, 40) correspondant au moins à celui de l'engagement de son extrémité (11a, 40c) sur ladite zone de butée (13, 43, 43A).Ski boot according to claim 2, characterized in that the difference in height between the low (24) and high (25) points is determined as a function of the engagement of the end (11a, 40c) of the swing lever (11 , 40) on the abutment zone (13, 43, 43A) obtained on the bottom of the shell (5) and is at least sufficient to cause, by means of the feeler member (11b, 41), a pivoting of said lever (11, 40) corresponding at least to that of the engagement of its end (11a, 40c) on said stop zone (13, 43, 43A). Chaussure de ski selon la revendication 3 caractérisée par le fait que la came (19a, 40a) comporte, à partir du point bas (24) et de chaque côté de ce dernier, une rampe progressive (27) qui s'étend jusqu'à une zone de retenue (19c) commune aux deux rampes (27).Ski boot according to claim 3 characterized in that the cam (19a, 40a) comprises, from the low point (24) and on each side of the latter, a progressive ramp (27) which extends up to a retaining area (19c) common to the two ramps (27). Chaussure de ski selon la revendication 3 caractérisée par le fait que la came (19a, 40a) comporte, à partir du point bas (24) d'un côté, une rampe progressive (27) et de l'autre côté, une surface de butée (29) contre laquelle bute l'organe de palpage (11b, 41).Ski boot according to claim 3 characterized in that the cam (19a, 40a) comprises, from the low point (24) on one side, a progressive ramp (27) and on the other side, a surface of stop (29) against which the feeler member (11b, 41) abuts. Chaussure de ski selon la revendication 3 caractérisée par le fait que la came (19a, 40a) présente, à partir du point bas (24) deux rampes progressives (26, 27) dissymétriques.Ski boot according to claim 3 characterized in that the cam (19a, 40a) has, from the low point (24) two progressive ramps (26, 27) asymmetrical. Chaussure de ski selon la revendication 6 caractérisée par le fait que la rampe (26) de la came (19a, 40a) s'étend au-delà du point haut (25) et ne présente pas de zone de retenue.Ski boot according to claim 6 characterized in that the ramp (26) of the cam (19a, 40a) extends beyond the high point (25) and does not have a retaining zone. Chaussure de ski selon l'une quelconque des revendications 1 à 7 caractérisée par le fait que la came (19a) est constituée par l'extrémité de la partie interne (19) de l'organe rotatif (10) et qu'elle assujettit le levier oscillant (11) en pivotement par l'intermédiaire de la partie d'extrémité (11b) de ce dernier qui constitue l'organe de palpage (11b).Ski boot according to any one of claims 1 to 7 characterized in that the cam (19a) is formed by the end of the internal part (19) of the rotary member (10) and that it secures the oscillating lever (11) pivoting through the end portion (11b) of the latter which constitutes the feeler member (11b). Chaussure de ski selon l'une quelconque des revendications 1 à 7 caractérisée par le fait que la came (40a) est ménagée sur une partie intermédiaire (40b) du levier (40) qui est située entre son axe transversal (12A) disposé à l'une (40b) de ses deux extrémités (40b, 40c) et son autre extrémité (40c), opposée, laquelle est destinée à coopérer avec la butée (13, 43, 43A) du bas de coque (5).Ski boot according to any one of Claims 1 to 7, characterized in that the cam (40a) is formed on an intermediate part (40b) of the lever (40) which is located between its transverse axis (12A) disposed at the 'one (40b) of its two ends (40b, 40c) and its other end (40c), opposite, which is intended to cooperate with the stop (13, 43, 43A) of the bottom of the shell (5). Chaussure de ski selon l'une quelconque des revendications précédentes caractérisée par le fait que les dispositifs d'immobilisation (35, 36) possèdent un levier oscillant (11, 40) qui comporte une partie d'extrémité (11a, 40c) apte à venir en appui contre la butée (13) du bas de coque (5) uniquement lorsque la partie postérieure (4) de la tige de la chaussure est sollicitée en pivotement dans le sens antéro-postérieur.Ski boot according to any one of the preceding claims, characterized in that the immobilization devices (35, 36) have an oscillating lever (11, 40) which has an end part (11a, 40c) capable of coming bearing against the stop (13) of the shell bottom (5) only when the rear part (4) of the upper of the shoe is pivotally biased in the anteroposterior direction. Chaussure de ski selon l'une quelconque des revendications 1 à 9 caractérisée par le fait que les dispositifs d'immobilisation (37, 38) possèdent un levier oscillant (11, 40) qui comporte une partie d'extrémité (11a, 40c) pourvue d'un tenon d'accrochage (42) destiné à coopérer, lorsque la partie postérieure (4) de la tige de la chaussure est amenée en position active de pratique du ski, avec une encoche (43, 43A), correspondante, par emboîtement pour immobiliser en pivotement ladite partie postérieure (4) dans les sens antéro-postérieur et postéro-antérieur.Ski boot according to any one of Claims 1 to 9, characterized in that the immobilization devices (37, 38) have an oscillating lever (11, 40) which has an end part (11a, 40c) provided an attachment tenon (42) intended to cooperate, when the rear part (4) of the upper of the boot is brought into the active skiing position, with a corresponding notch (43, 43A), by interlocking to immobilize in pivoting said rear part (4) in the antero-posterior and postero-anterior directions. Chaussure de ski selon la revendication 11 caractérisée par le fait que l'encoche (43A) s'étend dans le sens vertical et présente une certaine longueur supérieure à l'épaisseur du tenon (42) pour une valeur (H) correspondant à un débattement possible dudit tenon (42) dans ladite lumière (43A) déterminant la liberté en pivotement de la partie arrière (4) de la tige dans le sens postéro-antérieur avant blocage.Ski boot according to claim 11 characterized in that the notch (43A) extends in the vertical direction and has a certain length greater than the thickness of the stud (42) for a value (H) corresponding to a clearance possible of said tenon (42) in said lumen (43A) determining the freedom in pivoting of the rear part (4) of the rod in the postero-anterior direction before blocking.
EP92108464A 1991-07-01 1992-05-20 Skiboot with pivot locking device of the upper quarter Expired - Lifetime EP0521282B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9108503A FR2678489B1 (en) 1991-07-01 1991-07-01 SKI SHOE HAVING A ROD PIVOTING IMMOBILIZER.
FR9108503 1991-07-01

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EP0521282A1 true EP0521282A1 (en) 1993-01-07
EP0521282B1 EP0521282B1 (en) 1995-03-22

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US (1) US5265352A (en)
EP (1) EP0521282B1 (en)
JP (1) JPH05184403A (en)
AT (1) ATE120080T1 (en)
DE (1) DE69201758T2 (en)
FR (1) FR2678489B1 (en)

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EP0688510A1 (en) 1994-06-02 1995-12-27 NORDICA S.p.A Device for adjusting the position of a quarter with respect to the shell of a sports shoe
EP0717939A1 (en) * 1994-12-05 1996-06-26 Kenta Sport Aktiengesellschaft Device to clamp, release and adjust portions of ski boots
EP0740909A1 (en) * 1995-05-03 1996-11-06 Lange International S.A. Skiboot
CH690289A5 (en) * 1995-05-03 2000-07-14 Lange Int Sa ski boot.
FR2752684A1 (en) * 1996-09-04 1998-03-06 Salomon Sa SPORTS SHOE EQUIPPED WITH AN IMMOBILIZING DEVICE IN PIVOTING THE UPPER
EP0827700A1 (en) * 1996-09-04 1998-03-11 Salomon S.A. Sportsshoe with a device for the immobilisation of the pivoting of the cuff
US5857271A (en) * 1996-09-04 1999-01-12 Salomon S.A. Sports boot equipped with an immobilization device during the pivoting of the upper
EP1915917A1 (en) * 2006-10-11 2008-04-30 LISA Lange International Sàrl Sportschuh mit schwenkbarer Knöchelmanschette zu einer Laufstellung
US7963050B2 (en) 2006-10-11 2011-06-21 Lisa Lange International Sarl Sports boot with articulated upper cuff to provide a position for walking
US9241532B2 (en) 2012-01-04 2016-01-26 K-2 Corporation Ski/walk mechanism
IT202000000988A1 (en) * 2020-01-20 2021-07-20 Tecnica Group Spa Ski boot, especially ski touring boot
EP3850978A1 (en) * 2020-01-20 2021-07-21 Tecnica Group S.p.A. Ski boot, more particularly boot for ski mountaineering

Also Published As

Publication number Publication date
FR2678489B1 (en) 1993-09-24
EP0521282B1 (en) 1995-03-22
DE69201758T2 (en) 1995-12-21
JPH05184403A (en) 1993-07-27
FR2678489A1 (en) 1993-01-08
DE69201758D1 (en) 1995-04-27
ATE120080T1 (en) 1995-04-15
US5265352A (en) 1993-11-30

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