EP0521283B1 - Skiboot with locking device of the upper quarter - Google Patents

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 control member (10) having rectilinear displacement with external control (18), an inner part (19) of which actuates, by means of a cam (19a), a feeler member (49) belonging to the oscillating lever (11) in order to impart to the latter an angular deflection about its spindle (12) towards a locking or unlocking position relative to the stop (13) obtained on the shell bottom (5). <IMAGE>

Description

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 itself comprising 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.

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 lift oscillating against an elastic member.

It has in particular 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 French patent FR-A 2,648,327. According to this lastly, 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 come to cooperate with a notch formed in the upper part of a cutout of the rod to maintain the rocker in the unlocked position. A sliding control of said moving part has the effect of releasing it 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 hull for an active position.

In order to allow the moving part to move in translation, in one direction or the other, it has a projecting 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 major, resides in the fact that it is necessary to provide, on the one hand, a relatively large rocker because the latter supports the movable member and the gripping member which is integral with it, and on the other hand an upper notch to be provided on the rod.

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 substantially straight thrust movement and perpendicular to the upper to rotate the rocker in a movement of release of its lower end from the stop, and a pushing movement also rectilinear substantially parallel to said rod to engage the movable part under the upper notch.

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 .

As illustrated, the stop means is housed in a recess of 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.

In this type of construction, the unlocking of the rod is effected by tilting towards the outside of the control member which, coming under 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.

As is clear, such an immobilization device has the disadvantage of being very prominent on the rear part of the rod and of requiring voluntary operation on the control member to return to the rod locking position in view of skiing.

One can also cite by way of 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 capable of abutting 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.

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 operation with the possibility of automatic relocking is not possible.

• 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,
• also unlocking said rod permanently and stably in order to allow easy use of the shoe for walking,
• to momentarily 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 to its initial angular ski practice position.

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 parts, 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 of the rear part of the rod by means of a stop and / or attachment zone obtained on said bottom of the hull.

As in the prior art constituted, for example by documents DE-U-80 20 898 (cf. the preamble of claim 1) and FR-A-2 619 317, the immobilization device can be operated by the intermediate of a rectilinear displacement control member acting on an oscillating lever, pivoting on the rear part of the rod around a transverse axis and subjected to the action of a return spring, this control member being suitable to slide on a slide materialized by at least one of the longitudinal edges of an oblong opening made in the rear part of the rod and on which is retained, free in translation, said control member, independently of the oscillating lever, which member has, relative to the rear part of the rod, an external gripping part, and an internal part acting on the oscillating lever thus pivotally secured relative to the abutment zone of the bottom of the shell.

The shoe is characterized in that the internal part of the rectilinear displacement control member acts on the oscillating lever by means of a cam cooperating with a feeler member.

A preferred characteristic of the invention lies in the fact that the cam extends parallel to the axis of translation of the cursor, 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 at least one ramp with a gradual slope which extends from a low probe point to a high point extended by a zone for retaining the probe 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 shell bottom and obtaining the unlocking of the upper of the shoe.

According to a first embodiment, the cam has two symmetrical progressive ramps each extending from the bottom point of the latter to a retaining zone. The actuator of the immobilization device associated with such a cam can thus be actuated indifferently in the two directions of translation in order to cause the unlocking of the upper of the shoe relative to the bottom of the shell.

According to a second embodiment of the aforementioned 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 maneuvering member of the immobilization device can thus be actuated only in a direction of rotation corresponding to that in which the ramp extends.

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 retaining 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 translation 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 the return to the locked position, the cam and / or the operating member can advantageously be equipped with an elastic return element. Also, with or without this elastic return element, the unstable cam unlocking ramp 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 favors its return to the initial position on the low point as soon as the operating member is released.

In these examples of the construction of a cam with two asymmetrical ramps, only one of the directions of movement in translation applied to the operating member thus determines, namely the momentary unlocking of the immobilization device with automatic return to the locked position from release, that is to say, permanently unlocking said device by retaining the feeler member on the high point of said cam.

The rod immobilization device can be provided to immobilize the latter in the only antero-posterior pivoting direction or in the two 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.

• les figures 1, 1A, 2 et 2A sont des vues en élévation d'une partie d'une chaussure de ski représentée partiellement en coupe verticale, et montrent plusieurs modes de réalisation de dispositifs d'immobilisation selon l'invention.
  Les figures 1 et 1A se rapportant à des dispositifs dans lesquels la coopération came-organe de palpage provoque une traction sur la pièce oscillante lors de la manoeuvre de déverrouillage, tandis que, dans les figures 2 et 2A, la coopération came-organe de palpage provoque une poussée sur la pièce oscillante lors de la manoeuvre de déverrouillage.
• Les figures 3 à 7 représentent différents profils de la came de commande du dispositif d'immobilisation.
• Les figures 8, 9 et 10 illustrent des variantes de réalisation du moyen d'arrêt du dispositif d'immobilisation selon l'invention vu en coupe verticale.
• Les figures 11, 12, 13 et 14 illustrent, vus de côté, différents types de chaussures réalisées conformément à l'invention.

The 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:

• Figures 1, 1A, 2 and 2A are elevational views of part of a ski boot partially shown in vertical section, and show several embodiments of immobilizers according to the invention.
  Figures 1 and 1A relating to devices in which the cam-feeler cooperation causes traction on the oscillating part during the unlocking maneuver, while in Figures 2 and 2A, the cam-feeler cooperation causes a thrust on the oscillating part during the unlocking maneuver.
• Figures 3 to 7 show different profiles of the control cam of the immobilizer.
• Figures 8, 9 and 10 illustrate alternative embodiments of the stop means of the immobilization device according to the invention seen in vertical section.
• Figures 11, 12, 13 and 14 illustrate, seen from the side, different types of shoes produced in accordance with the invention.

By way of illustrative, nonlimiting example, the shoe 1 designated overall, and represented in FIG. 1, is of the "rear entry" type.

This 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 three-point tightening system 7a, 7b, 7c, and of 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.

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, the control member 10, or slider, 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 lever 11, and acts in reaction against the wall 16a of the rear part 4 which extends in the lower extension of a stiffening beam 16 of said rear cover 4 of the rod 2. The control member 10 of the oscillating lever 11 is capable of sliding on a slide 17, formed by at least one of the longitudinal edges of an oblong opening 17 ′ formed in said wall 16a of the rear part 4 of the rod 2, and in which said control member 10 is retained, free to translate , independently of the swing lever; to be operated, the control member 10 comprises respectively, arranged on either side of the wall 16a, an external gripping part 18 actuable manually in translation, 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 49 of the cam, the two parts 18 and 19 being interconnected by means of a bearing 20, corresponding to a groove in which receives the slide 17 made in the rod 2.

According to the present embodiment, the cam 19a is constituted by the very front end of the internal part 19 of the 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 has, on either side of a low point 24, a groove which extends to a high point 25, these points respectively determining an immobilization position in the anteroposterior direction, or conversely a position of angular freedom thereof, for a certain translational movement in one direction or the other applied to the gripping part 18 of the operating member 10.

Of course, this gripping portion 18 of the operating member may be of any other form. In all cases, the gripping part 18 of the control member 10 is in one piece or rigidly connected to its grooved surface 20, for example by means of a pin.

The retaining of the operating member 10 on the wall 16a of the rod 2, which wall here constitutes the extension of the stiffening beam 16, is ensured by pinching said wall between the gripping part 18 and the bearing surface 20 determining the sliding groove cooperating with at least one of the longitudinal edges of the opening 17 '.

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 translation in the direction F1, exerted on the gripping part 18.

The translation 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 the rear part 4 of the rod 2 free in angular movement.

According to an embodiment shown in FIG. 1A, the immobilization device 35 differs essentially from the previous one in that the cam 19a is formed on the end 11b of the lever 11 while the feeler member 49 is located on the part internal 19 of the control member 10.

According to another embodiment shown in Figure 2, the immobilizer 36 differs essentially from the previous one in that the cam 40a is formed on an intermediate part 40b of the lever 40 located 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 in locking mode, said cam 40a being in permanent contact with a transverse operating axis 41, constituting the feeler member, integral with the control member 10A, said ramp comprising a low point 24 and at least one high point 25 which correspond, as before, respectively to a position of immobilization of the rod 2, or conversely to the angular freedom of the latter ci, for a certain translational movement in one direction or the other applied to the gripping part 18 of the operating member 10A, acting on said cam 40a to cause ledi t angular movement of the lever 40.

Of course, the cam 40a, cited in this embodiment, can be arranged as shown in FIG. 2A, not on a part of the lever 40, but on an element of the internal part 19 of the operating member. 10A. In this case, the lever 40 is capable, for its part, of the feeler member 41 constituted by a transverse axis supported by lugs coming from the intermediate part 40b of said lever 40.

Also, the cam 19a and / or 40a may have different profiles as a function of the defined direction and / or direction of operation in translation as well as the amplitude of the movement in sliding on the slide 17 desired to pass from a locking position. to an unlocking position and / or vice versa.

In FIGS. 3 to 7, several embodiments of the profile of a cam 19a and / or 40a of the type described briefly in FIGS. 1 and 2 are illustrated by way of example.

In FIGS. 3 and 4, the cam 19a, 40a is obtained with two symmetrical ramps 27 each extending progressively from the low point 24 as far as 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 the figures is a function of the engagement of the lower end part 11a of the lever 11 against the stop 13 at the bottom of the shell 5, as illustrated in FIGS. 1 and 2. This difference in height in fact represents the value of the travel of the end 11b of the lever 11 necessary to unlock the rod 2 relative to the bottom 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, 40a of FIG. 2, the retaining zone 19c is advantageously embodied by a notch in which the feeler member is intended to snap which guarantees a stable unlocking position of this last and index in translation said cam 19a, 40a in the unlocked position of the shoe upper 2. Of course, as shown in FIG. 4, the retaining zone 19c can simply be constituted by a flat bearing surface. In these two exemplary embodiments of the cam 19a, 40a (FIGS. 3 and 4), the latter can indifferently be maneuvered, starting from the low point 24, in the two directions of translation to cause the unlocking of the shoe upper. To obtain an unstable unlocking position from of such a cam, the retaining zone 19c is advantageously located beyond the unlocking point. In this way, when the cam 19a, 40a is only moved from its low point 24 to its high point 25 by means of the member 10 and then released before reaching the retaining zone 19c, the upper of the shoe is is then momentarily unlocked at the instant when the feeler member 41 or 49 reaches said high point 25; after release of the control member 10, the cam 19a, 40a is then capable of returning to the locked position, under the effect of pushing or pulling of the feeler member on the corresponding ramp of the latter, depending on whether the device is that of the type of FIG. 1 or of the type of FIG. 2. Also, the cam can be returned to the locked position under the effect of an elastic return element, not shown, which can be interposed between the member 10 and a fixed point on the wall of the rear cover 4 on which it is retained, such a 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 restoring effect.

As illustrated in FIGS. 6 and 7, the cam 19a, 40a 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, only 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 translation in the direction corresponding to the unstable unlocking, the feeler member 41 or 49 rises on the ramp 26 and passes the high point 25 in the direction of level 28, by pivoting the lever 11 or 40 until the latter comes into abutment, for example by its end portion 11a or 40c, against the wall 16 of the rod. As soon as the operating member 10 is released, the cam 19a, 40a then tends to return to its initial locking position as described above. Advantageously, as shown in FIG. 7, the ramp 26 is very inclined so that a relatively low pressure of the feeler member causes, by pressing reaction, the translation of the cam 19a until that said feeler member stabilizes on the low locking point 24.

Regarding the unlocking ramp 27, it is produced in a similar manner to that described with reference to Figures 3 and 6 above.

In the example of FIG. 5, the cam 19a, 40a is designed to be operated only in one direction of translation, and is provided for this purpose with an abutment surface 29 extending substantially vertically by a side of the low point 24 and opposite a single unlocking ramp 27.

In all cases of production of a cam with asymmetrical ramps, FIGS. 6 and 7, or of a single ramp cam, FIG. 5, the stable unlocking ramp 27, can extend indifferently in any of the directions. of translation of said cam and be of more or less length; this latter characteristic also being valid for ramp 26.

The immobilizing devices 35 and 36 which have just been described with reference to FIGS. 1, 1A, 2 and 2A block the rear part 4 of the upper 2 of the shoe only in the direction of an antero-posterior pivoting around the rivets 6 connecting with the bottom of the shell 5; this blockage is obtained from the fact that the oscillating levers 11 and 40 have lower end portions 11a and 40c which simply come to bear on the latter. It is also conceivable to produce immobilization devices similar to those 35 and 36 but of which the oscillating levers 11 and 40 are provided with parts which, by cooperating with an abutment 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.

For example, there is shown in Figure 8 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 hooking tenon intended to cooperate with a corresponding stop or notch 43 obtained in the bottom of the shell 5, when the immobilization device 37 is put in rod locking position and the rear cover 4 is brought into the skiing position. In fact, as long as the rear cover 4 remains tilted backwards, 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 , resting against the outer wall of the shell bottom 5 by its lower end part 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, 1A, 2 and 2A.

In FIG. 9, the immobilization device 38 is also of the anteroposterior locking type; this device incorporates the constituent elements of the immobilization device 36 of FIG. 2, 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. 8.

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. 10 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.

It is obvious that the shoes can have structures different from the preferred ones described with reference to Figures 1 and 2, and benefit in the same way from an immobilizing device 35, 36, 37 or 38 as described above.

• 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 d'un 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.
  Bien entendu, en l'absence du curseur 32, il s'agirait également d'une chaussure à "entrée mixte" dont les parties antérieure et postérieure, 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 1 (figure 1) 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 2.

It can indeed be:

• in FIG. 11, of a shoe 1B of the "rear entry"type; in the example of construction shown, the movement in the postero-anterior direction of a front cover 31 is controlled by a bending control slider 32 while the immobilizing device blocks the rod in the antero-posterior direction.
  Of course, in the absence of the cursor 32, it would also be a shoe with “mixed entry”, the anterior and posterior parts, respectively 3B, 4B, being able to move apart simultaneously or individually;
• in FIG. 12, of a shoe 1C, of the “mixed entry” or “top entry” type in which the rear cover 4C is capable of tilting backwards, while the front cover 3C, replacing the wings covering 30 of shoe 1 (FIG. 1) constitutes a cover in one piece, articulated in the area of the end 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 with "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 hood on the front hood as described with reference to the shoes of FIGS. 1 and 2.

Claims (12)

1. Alpine ski boot comprising a shell base (5) surmounted by an upper (2, 2A, 2B, 2C, 2D) incorporating a front portion (3, 3A, 3B, 3C, 3D) and a rear portion (4, 4A, 4B, 4C, 4D) composed of one or several parts, the rear portion of said upper (2, 2A, 2B, 2C, 2D) pivoting at least partially from back to front and/or from front to back, comprising a device (35, 36, 37, 38) for locking the functional shell base (5) in at least one of the directions of pivoting of said rear portion (4, 4A, 4B, 4C, 4D) of said upper (2, 2A, 2B, 2C, 2D) by means of a stop-motion area (13, 43, 43A) obtained on said shell base (5), said locking device (35, 36, 37, 38) being operable by a control element (10) moving rectilinearly and acting on a swinging lever (11, 40) which pivots on said rear portion of the upper (2, 2B, 2C, 2d) around a transverse pin (12, 12A) and acted upon by a return spring (14), said control element (10) being capable of sliding in a slide-track (17) given material form by at least one of the longitudinal edges of an oblong opening (17') in said rear portion (4, 4B, 4C, 4D) of said upper (2, 2B, 2C, 2D), and on which said element (10) is held while remaining free to travel in translational motion independently of the swinging lever (11, 40), said element (10) incorporating, with respect to the rear portion of the upper, an outer gripping part (18) and an inner part (19) which acts on said swinging lever (11, 40), which is thus controlled in its pivoting motion in relation to said stop-motion area (13, 43, 43A) in said shell base (5), wherein said inner part (19) of said rectilinear-motion control element (10) acts on said swinging lever (11, 40) by means of a cam (19a, 40a) cooperating with a feeler device (41, 49).
2. Ski boot according to claim 1, wherein said cam (19a, 40a) extends parallel to the axis of translational motion of said control element and incorporates on its contour at least one progressively-inclined surface (27) extending from a low point (24) to a high point (25) extended by a retention zone (19c), said cam (19a, 40a) cooperating with said feeler device (41, 49) controlling said swinging lever (11, 40).
3. Ski boot according to claim 2, wherein the difference in height between the low and high points (24 and 25) is determined as a function of the engagement of an end-piece (11a, 40c, 42) of said swinging lever (11, 40) on said stop-motion zone (13, 43, 43A) produced on the shell base (5) and is at the least sufficient to cause, by means of the feeler device (41, 49), a pivoting motion of said lever (11, 40) corresponding at least to the pivoting motion of the engagement of said end-piece (11a, 40c, 42) on said stop-motion zone (13, 43, 43A).
4. Ski boot according to claim 3, wherein said cam (19a), 40a) comprises, beginning at said low point (24) and on each said thereof, a progressively-inclined surface (27) extending to a retention zone (19c).
5. Ski boot according to claim 3, wherein said cam (19a, 40a) comprises, beginning at said low point (24) and on one side, a progressively-inclined surface (27), and, on the other side, a stop-motion surface (29) against which said feeler device (41, 49) is stopped.
6. Ski boot according to claim 3, wherein said cam (19a, 40a) comprises, beginning at said low point (24), two asymmetrical, progressively-inclined surfaces (26, 27).
7. Ski boot according to claim 6, wherein said inclined surface (26) of said cam (19a, 40a) extends beyond said high point (25) and has no retention zone.
8. Ski boot according to any of claims 1 to 7, wherein said cam (19a) is constituted by the end of the inner part (19) of said control element (10) and controls said swinging lever (11) in its pivoting motion by means of the end-piece (11b) of the latter, which is provided with said feeler device (49).
9. Ski boot according to any of claims 1 to 7, wherein said cam (40a) is provided on an intermediate part (40b) of said lever (40) located between its transverse pin (12A) positioned at one (40d) of its two ends (40d, 40c) and its other, opposite end (40c), which is designed to cooperate with said stop (13, 43, 43A) of said shell base (50.
10. Ski boot according to any of the preceding claims, wherein said locking devices (35, 36) possess a swinging lever (11, 40) comprising an end-piece (11a, 40c) capable of being supported against said stop (13) of said shell base (5) only when said rear portion (4) of the boot upper is made to pivot in the front-to-back direction.
11. Ski boot according to any of claims 1 to 9, wherein said locking devices (37, 38) possess a swinging lever (11, 40) comprising an end-piece (11a, 40c) provided with an attachment tenon (42) designed to cooperate, when the rear portion (4) of said ski upper is brought into the functional skiing position, with a corresponding notch (43, 43A) by being inserted into the latter in order to immobilize the pivoting motion of said rear portion (4) in the front-to-back and back-to-front directions.
12. Ski boot according to claim 11, wherein said notch (43A) extends vertically and has a length greater than the thickness of said tenon (42), thus giving a value (H) corresponding to a possible swinging motion of said tenon (42) in said opening (43A), which determines the freedom to pivot of said rear portion (4) of the upper in the back-to-front direction before locking occurs.

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