EP0790008A1 - Sportsshoe with adjustable quarter - Google Patents

Abstract

Sports boot, e.g. for skiing has lower leg section connected to foot shell by interchangeable couplings to permit different relative positions.

Description

The invention relates to a sports shoe consisting of a rod and a shell base connected and articulated together in the zone corresponding to the articulation of the wearer's ankle, and relates to a device for coupling the rod. with the shell base in the dorsal region of the shoe, which device is intended to determine the conditions of flexion of the upper relative to the shell base.

Known sports shoes of this type, in particular ski boots, generally comprise a rod and a shell base which are hinged together around connecting axes in the zone corresponding to the ankle of the wearer where they are joined by interlocking at least partial to each other; conventionally, the nesting is achieved by the lower edge of the rod which comes to cover a flange formed by an extension of the wall of the shell base which ensures good sealing. This collar, more or less flexible and high, is, on the one hand, centered in the dorsal zone of the heel of the shell base on either side of the articulation axes of the rod, and on the other hand, is associated with a transverse rim on which the lower edge of the rod bears when the rod is biased in pivoting towards the rear. Thus arranged, the junction zone between the rod and the shell base makes it possible to limit the bending of the rod towards the rear and opposes a certain resistance to its bending towards the front. Indeed, because it covers the flange coming from the shell base, its pivoting towards the front is only made possible on condition of causing the elastic deformation of the flange at least in the zone between its articulation axes and the dorsal area of the heel of the shell base, and to overcome the friction forces which result therefrom. To do this, it is therefore necessary that the force applied to the front part of the rod, in correspondence with the tibial zone of the skier, is greater than that resistant provided by the collar which cooperates with the rear part of the rod, which flange therefore constitutes a means of controlling bending in force. Furthermore, the collar being encircled by the rear lower edge of the rod on either side of the articulation axes of the latter, the result of the effort produced to cause it to flex forward is transmitted obliquely from the upper to the end of the shell base in a direction always oriented substantially perpendicular to the axes of articulation of the upper, ie almost always in the longitudinal axis of the shoe; the collar thus associated with the axes of articulation of the rod therefore constitutes a means of controlling the bending of the rod intervening in the direction of the force transmitted towards the shell base.

These shoes are relatively satisfactory because they are of very simple structure, relatively waterproof, easy to manufacture, therefore of a reduced cost, and because they have a flexibility of progressive upper in effort which is obtained by a pulling effect on the dorsal area. shoes, which is a factor of comfort for the skier; effectively, by doing so, the force applied to the anterior part of the rod by the skier is distributed over a large surface of wrapping extending over the tibial zone of the skier and on both sides thereof. , hence the absence of a hard point or localized pressure, which is very often found on shoes where the resistant force is obtained by a pushing effect on the front part of the shoe, between the upper and the base of shell.

However, these boots prove to be of an insufficient level of performance as soon as they are intended for experienced skiers who wish to master and refine their technique, for example for competition, skiing in all terrain snow, or demonstration ski, and above all to transmit a maximum of power, that is to say of force, in their support on the rod to optimize the ski-snow contact pressures, the directional effects, ... etc.

Thus, for example, it can be seen that the upper of these shoes is not really limited in pivoting forwards in order to prevent in particular accidents following a back flexion or extreme back flexion of the skier's ankle, such as rupture ligaments, tendons or tearing of the muscles. In fact, nothing is firmly opposed to the pivoting of the rod towards the front in fact, the rod does not find its limit of bending until its lower front edge is supported on the part of the shell base which is facing screw, that is to say the one that corresponds to the instep area, and deforming it if necessary so that the resistance opposed by it reaches a level capable of stopping the rod in its pivoting; it follows from this that the flexion limit of the upper of these shoes is variable as a function of the force applied to the upper, and that in any event it determines an excessive amplitude of flexion which can be traumatic for the wearer .

Another drawback relates to the difficulty of obtaining a great effort of resistance to the bending of the rod towards the front by simply varying the thickness, the height and the flexibility of the flange coming from the shell base. In fact, given that this collar is located at the place where the foot passes during the shoeing-heaving, it is necessary that it is flexible enough to deviate under the simple pressure of the foot during its passage and without other intervention; it is also necessary that it does not extend too high in the dorsal region of the hull base so as not to hinder the engagement-release of the heel of the skier's foot always during the boot-release.

Yet another drawback concerns the absence of any adjustment whatsoever for varying the bending force of the rod, its angle of advance, the direction of the resultant of the force which it transmits towards the hull base. , or for the amplitude of its possible bending.

To overcome some of these drawbacks without calling into question the simplified structure of these shoes which are provided with all the means necessary to ensure control of bending, even if they are insufficient as explained above, a known solution consists in: use it as a basic structure to which is added means for reinforcing and retaining the rod on the collar. This is what is achieved, for example on the models of alpine ski boots "PRO" by Lange in 1972, "Equipe" by Caber in 1982, and "Grand Prix" by Nordica in 1995. Indeed, on these models boots whose basic structure is comparable to that of the ski boots described above, the reinforcement is carried out using at least two coupling means ensuring a fixed and permanent connection between the upper and the collar. These coupling means are arranged on either side of the dorsal zone of the heel of the shell base and of the rod, symmetrically, and in the space between the points of articulation of said rod and said zone. dorsal. By this arrangement of the coupling means, the upper of the boot is blocked, that is to say prevented from any determined pivoting, and the forward bending forces which are applied to it by the lower leg of the skier are thus transmitted. towards the hull base with a minimum of loss of force and in a shorter, even almost instantaneous, manner, since the only amplitude of bending of the rod only results from the deformation of the materials used.

In addition, the coupling means being located in the dorsal region of the shoe and on either side thereof, the force resisting the bending of the upper forward remains obtained by a pulling effect this which relatively preserves the tibial zone of the lower leg of the skier. It is obvious that the arrangement of at least two or more coupling means, as produced on these shoes, makes it possible to reduce the pressures at their place, and thus the risks of deterioration.

These shoes therefore have, compared to the shoes previously exposed, a high resistance to bending and practically no amplitude of bending which is relatively satisfactory for experienced skiers, but, consequently, cannot be addressed to all. skiers because too specific, especially in rigidity, and this, without possibility of adjustment whatsoever to vary the bending force, the angle of advance, the amplitude of bending or the direction of the force transmitted to the ski by the hull base interposed.

It follows from the foregoing analysis that sports shoes having a simplified structure as described above, give overall satisfaction to the user provided that they are used for their specificity, that is to say for a sporting practice in leisure-relaxation or very technical such as competition. Indeed, the reinforcement of the flexion resistance of the upper of these shoes by fixed and permanent coupling means is not achievable by the user of the shoe, and is not reversible or adjustable for later adaptation. for example in order to increase the amplitude of the bending of the rod. To satisfy the greatest number of users of these shoes, it is therefore necessary to provide a large number of models corresponding at least to the different categories of users estimated, and to provide each model with specific characteristics that best meet the requirements of said categories. . Obviously, this way of proceeding is complicated, expensive because of the need to have many models, and provides only an average technical solution for the user because it is determined on the basis of a "category of users "and does not really allow customization of the shoe.

The present invention aims to remedy these various drawbacks inherent in the sports shoes described above and aims to allow the user himself to give them additional technical characteristics specific to the sports use he wishes. to do, in a simple, efficient and reversible way.

The invention also aims to propose a single model of shoe with a simplified structure which is compatible for several categories of users, or even for all of the users in the sporting practice considered.

To achieve these objectives, the sports shoe has a basic structure consisting of a rod and a shell base connected and articulated together around axes of articulation in the zone corresponding to the articulation of the ankle of the carrier where they are joined by interlocking at least partially one on the other via the lower edge of the rod and a flange of the shell base, and comprises a device for coupling the rod with the shell base consisting of two coupling means arranged on either side of the dorsal region of the shoe at points of fixation. It is characterized by the fact that the coupling means are removable and replaceable by other coupling means, in particular by means having different mechanical characteristics.

By this removability characteristic of the coupling means, the shoe according to a simplified basic structure can easily be adapted by the user, either by removing the coupling means for a sport in leisure-relaxation, or by implementing the means of coupling for a highly technical sports practice, for example competition.

Also, still thanks to the removability of the coupling means which are located on either side of the dorsal zone of the shoe and behind the articulation and linkage axis of the upper, it is possible to modify the direction of the result of the force transmitted from the rod to the hull base in flexion. Indeed, for this it suffices to use only one of the two means of coupling the rod with the flange of the shell base, which has the consequence of reinforcing only the side of the shoe where the means is located. coupling, or in the area between the latter and the corresponding articulation axis of the rod. By this arrangement, the bending forces which are applied to the rod are transmitted by the latter obliquely towards the shell base in a direction oriented no longer as a function of the position of its two axes of articulation, but as a function of the asymmetrical position of the single coupling means used with respect to the two axes of articulation. The consequence is that the orientation given to the resultant of the force applied to the upper diverges from the longitudinal axis of the shoe on the side corresponding to the reinforced side, in front or rear bending.

This possibility of modifying the direction of the result of the force transmitted by the rod proves to be very interesting because it allows for example the skier to accentuate the pressure on only one of the edges of the sole of the hull base, and consequently on the corresponding edge of the ski when he practices skiing. It is obvious that such an asymmetrical coupling which increases the lateral pressure is preferably carried out on the internal side of each shoe because it is especially on the internal edge of the skis that the skier needs to transmit the greatest efforts, in particular for the attachment of the ski or to optimize certain directional effects for example.

According to different embodiments, the shoe is also characterized by the fact that the attachment points of the two coupling means are located on either side of the dorsal region of the shoe upper, either symmetrically or asymmetrical, depending on whether or not we want to give the shoe a particular behavior expected from the original. In the first construction case, for example, the simultaneous implementation of the two coupling means gives a result of the force, transmitted by the rod, always oriented in a direction substantially perpendicular to the axes of articulation of the latter. In the second construction case, on the other hand, the simultaneous implementation of the two coupling means always produces a result of the transmitted force which is more directed towards the side of the shoe where the reinforcement is the most important, which has the result of orienting it in a direction that is always substantially divergent with respect to the longitudinal axis of the shoe. It is obvious that even in this embodiment, it is possible to use only a coupling means to further accentuate the divergence of the result of the force transmitted by the upper to the shell base relative to the longitudinal axis of the shoe.

According to one embodiment of the coupling device, each coupling means consists, on the one hand, of a shoulder washer pierced with a hole in the middle and intended to cooperate by its shoulder with a light obtained in the wall of the rod, and on the other hand, of a removable assembly part, such as a screw or a threaded pin, extending transversely to the walls of the flange of the shell base and of the rod which it crosses through the hole of the washer; the coupling of the rod with the flange of the shell base is thus achieved by means of the assembly part which makes it possible to sandwich the wall of the rod between the shoulder washer and the wall of said flange, while the 'shoulder, housed in the lumen of the rod, limits the possible movements of the latter on its axes of articulation relative to the assembly part which is fixed in position on the flange of the shell base.

It follows from this construction of each coupling means that it suffices to modify the adjustment of the shoulder of the washer relative to the lumen with which it cooperates to allow a corresponding relative displacement of the rod relative to the flange by pivot around its articulation axes or to block it, and therefore to modify the amplitude of flexion. In fact, the outer contour of the shoulder of the washer is provided smaller than that of the interior of the slot, and preferably on the side where the relative displacement is desired, the value of the clearance, or space, left free between the shoulder and the light thus determines the value of the maximum permitted relative displacement of the upper relative to the shell base on each flank considered of the shoe. Also, always on the basis of this kind of construction of each coupling means, it suffices to interpose in the space left free between the shoulder and the light an elastically compressible material to dampen the relative displacement of the rod, and therefore vary the bending force. In order to allow the user of the shoe to intervene himself on these parameters and thus to give the shoe the technical characteristics he wishes, a set of washers, with shoulders of various sizes and / or shapes , always accommodable in the original lights provided in the upper of the shoe, is provided and made available to it. Thus, by replacing one type of washer with another type on each side of the shoe, the flexion conditions of the upper are modified relative to the shell base.

• le blocage de la tige dans les deux sens de flexion, avant et arrière, et en retournant la rondelle de 180°, une modification de l'angle d'avancée de la tige pour la valeur de l'excentration de l'épaulement,
• le blocage de la tige dans un sens de flexion, avant ou arrière, et une flexion amortie dans l'autre sens de flexion, dans les limites permises par la lumière oblongue et la compressibilité du matériau amortisseur,
• le blocage de la tige dans le sens de flexion, avant ou arrière, et une flexion libre dans l'autre sens de flexion, dans les limites permises par la lumière oblongue.

According to a preferred embodiment, the upper of the shoe has on each side an oblong light which is oriented on a tangent coming from the corresponding articulation axis of said upper and the set of shoulder washers is of three types : the first has an eccentric shoulder and oblong shape adjusted to that of the oblong slot, the second shoulder similar to the first but made of a rigid material and an elastically compressible material, the rigid material extending to the place of the passage hole of the assembly part, and the third a centered shoulder and of cylindrical shape with a diameter substantially smaller than the width of the oblong opening. Thus, depending on the shoulder washer used, we obtain:

• blocking the rod in both flexion directions, front and rear, and by turning the washer 180 °, a change in the angle of advance of the rod for the value of the eccentricity of the shoulder,
• blocking of the rod in one direction of bending, front or rear, and damped bending in the other direction of bending, within the limits permitted by the oblong light and the compressibility of the damping material,
• blocking of the rod in the direction of bending, front or rear, and free bending in the other direction of bending, within the limits permitted by the oblong lumen.

The mounting of these washers being independent from one side to the other of the shoe, it goes without saying that a multitude of symmetrical and asymmetrical combinations is therefore authorized, which allows the user to specifically adapt the behavior of the shoe as desired and for the intended sports use.

The invention will moreover be better understood by referring to the description which follows with reference to the appended schematic drawings showing, by way of example, an embodiment of a sports boot, such as a ski boot, equipped with an adjustable coupling device of its rod.

FIG. 1 illustrates, in exploded view, a ski boot provided with a device for coupling its adjustable upper using a set of coupling means of different types.

Figures 2 and 3 show, in partial longitudinal section, the shoe of Figure 1 in a first position of advance (Figure 2) and in a second position of advance (Figure 3).

FIG. 4 represents a ski boot similar to that of FIGS. 1 to 3 but whose hull base does not have a rear support flange.

Figures 5 to 11 show, sectional views along the line V-V of Figure 2, the different possible arrangements of the coupling means and their operation.

Figures 12 to 14 illustrate, schematically, certain directional effects that the coupling device can provide in the transmission of the forces of the rod towards the shell base depending on whether its coupling means are mounted symmetrically or asymmetrically.

The ski boot illustrated in Figures 1 to 3 has a structure consisting of a rod 1 and a shell base 2 provided with a walking sole 3. The rod 1 and the shell base 2 are connected and articulated between they around articulation axes 4 located in the zone corresponding to the articulation of the wearer's ankle (not shown), and are limited in rear pivoting by a support flange 18; these parts 1 and 2 of the shoe are joined by at least partial interlocking one, 1, on the other, 2, via the lower edge 5 of the upper 1 and a flange 6 of the base shell 2, which extend at least above the heel 8, and possibly the instep 9, as in this example shown. In the latter case, two lateral notches 12 separating the front part 6a from the rear part 6b of the collar 6 are advantageously provided in order to facilitate the elastic deformation of the collar 6 when the rod 1 flexes on the front. Also, in order not to hinder the passage of the heel of the skier's foot, when putting on or taking off, another notch 36 is produced in the upper dorsal end of the collar 6.

A coupling device consisting of two coupling means 10 disposed on either side of the dorsal zone 11 of the shoe makes it possible to connect the upper 1 and the shell base 2 between them at fixing points 22 located symmetrically behind the articulation axes 4, and above them at a certain distance marked by the letter "X", as shown these fixing points 22 can obviously be provided located asymmetrically, either in height and / or laterally. This device is characterized in that each coupling means 10 is removable and / or replaceable by other coupling means 10 which may have different mechanical characteristics. Each coupling means 10 consists of a washer 13 with shoulder 14 pierced with a hole 15 in the middle, and an assembly part 16, such as a screw, allowing a removable assembly.

This assembly part 16 extends transversely to the walls of the collar 6 of the shell base 2 and of the rod 1 which it passes through through a hole or opening 17 in the latter and passes through the hole 15 of the washer. 13, the shoulder 14 of which is housed in said lumen 17. The coupling of the rod 1 on the flange 6 of the shell base 2 with the coupling means 10 described makes the wall of the rod 1 sandwiched between that of the flange 6 and the washer 13, and limited in pivoting on its articulation axes 4 as a function of the play or of the space left free between the external contour of the shoulder 14 and the contour of the light 17. It It follows from this arrangement of the coupling means 10 that it is possible not only to replace them or to use only one of them, but also to remove them; in this case, the shoe is given these basic functional characteristics, that is to say that the upper 1 can bend forward, subject to overcoming the resistance opposed by the collar 6 by its elastic deformation, and is blocked towards the rear, as soon as it bears on the rim 18 of the shell base 2.

• dans la version A, l'épaulement 14 est de forme oblongue excentrée par rapport au trou 15 et son contour est ajusté à celui de la lumière 17, ledit épaulement étant de préférence réalisé dans un matériau rigide,
• dans la version B, l'épaulement 14 est de forme identique à celui de la version A mais est réalisé en bi-matière, c'est-à-dire constitué d'un matériau rigide à l'endroit 20 du trou de passage 15 et d'un matériau compressible élastiquement pour le reste repéré par la référence 21,
• dans la version C, l'épaulement 14 est de forme cylindrique centrée sur le trou de passage 15 et présente un diamètre extérieur sensiblement plus petit que la largeur de la lumière oblongue 17.

In the present embodiment, the opening 17 obtained in the rod 1 is of oblong shape and is oriented on a tangent, identified by the reference numeral 19, coming from the corresponding articulation axis 4 of said rod 1, and the shoulder 14 of the washer 13 is adapted. For this purpose, the washer 13 is, for example, provided according to three different types of construction having shoulders 14, versions A, B or C, visible in FIG. 1, which are made available to the wearer of the shoe:

• in version A, the shoulder 14 is of oblong eccentric shape relative to the hole 15 and its outline is adjusted to that of the lumen 17, said shoulder preferably being made of a rigid material,
• in version B, the shoulder 14 is identical in shape to that of version A but is made of bi-material, that is to say made of a rigid material at the location 20 of the through hole 15 and of an elastically compressible material for the remainder identified by the reference 21,
• in version C, the shoulder 14 is of cylindrical shape centered on the through hole 15 and has an outside diameter substantially smaller than the width of the oblong opening 17.

The user thus has three coupling means 10A, 10B and 10C, of different mechanical characteristics, each influencing the possibilities of bending of the rod and, moreover, which are each capable of being implemented in two opposite positions at 180 °, which determine the direction of possible movement given to the rod 1.

By way of example, FIGS. 5 to 11 illustrate, in detail, the implementation of the three coupling means 10 according to versions A, B and C, and the incidence of their 180 ° overturning.

In FIGS. 5 and 6, which correspond to the positions of the boot illustrated in FIGS. 2 and 3, the shoulder 14A of the coupling means 10A completely fills the lumen 17 and thus prevents any displacement of the rod 1 relative to the collar 6 of the shell base, by means of the assembly piece 16 which is fixed in position on its fixing point 22. Furthermore, by its 180 ° reversal, from the position shown in FIGS. 5 and 2 to that of Figures 6 and 3, the washer 13 of the coupling means 10A requires the displacement of the lumen 17 of the rod 1 on the side of the eccentricity of the shoulder 14A so that said lumen 17 is opposite said shoulder 14A. Due to this displacement, the "angle of advance" or "inclination" of the rod 1 relative to the shell base 2 is modified for the value of the eccentricity of the shoulder 14A as indicated by the arrow 23. It goes without saying that in such a mounting case the rear support flange 18 has no effect on the upper 1, and that its absence, as shown on the shoe of FIG. 4, does not harm the behavior of said shoe. On the other hand, the withdrawal of the two coupling means 10 totally frees the rod in flexion even towards the rear, and, in this case, the absence of a rear support flange 18 can be a handicap for the skier for his especially anteroposterior balancing.

In FIGS. 7, 8 and 9, the shoulder 14B of the coupling means 10B completely fills the light 17 as in the case of the means 10A, but because it comprises a compressible part 21, the rod 1 remains possible from a certain displacement relative to the fixing point 22 within the compressibility limits of said part 21 as indicated by the arrow 24 in FIG. 8, from the initial position in FIG. 7. It goes without saying that the 180 ° reversal of the washer 13 requires, as previously for the shoulder 14A, the displacement of the rod 1 around its axes 4 in order to bring the light 17 opposite the shoulder 14B, Figure 9; on the other hand, in this case, the rod retains a certain freedom of movement on the side where the compressible part 21 of the shoulder 14B is located. Thus, it is possible to obtain, according to the mounting direction of the coupling means 10B, a damping of the rod 1 by bending forwards or backwards.

In FIGS. 10 and 11, the shoulder 14C of the coupling means 10C of cylindrical shape leaves a certain space permanently between it and the ends of the oblong slot 17, and thus allows the rod 1 to freely debate around its axes. articulation for the value of this space, the shoulder 14C constituting the stop means in front and rear extreme bending.

From the above description it appears that the user can use a chosen coupling means 10, 10A, 10B or 10C, on one side of the shoe, and a different coupling means on the other side of the shoe. The user can also use only one coupling means 10, 10A, 10B or 10C. For all these assembly cases mentioned, it clearly follows that the bending of the rod forwards and / or backwards then generates different effects intervening in the direction of the result of the force transmitted from the rod 1 to the shell base 2, the level of the forces, the damping of the bending, the amplitude of the bending, and / or the angle of advance of the rod 1.

Thus, as in the example illustrated in FIG. 12, when the coupling means 10 are arranged symmetrically on either side of the dorsal zone 11 and its axes of articulation 4, the direction of the resultant of the transmitted force is substantially perpendicular to said articulation axes 4, as indicated by arrows 28 and 29 depending on whether the flexion is directed forwards or backwards, that is to say substantially in the longitudinal axis 39 of the shoe.

In the case of Figure 13, there is illustrated the implementation of a single coupling means 10, on the outer side 30 of the shoe. In this case, only the side corresponding to this side 30 is reinforced in the area between the axis 4 to the coupling means 10; consequently, the bending forces inflicted on the upper 1 of the shoe forwards or backwards generate a lateral torque which directs the direction of the resulting force on this reinforced side of the shoe, that is to say the external side 30 indicated by arrows 31 and 32, therefore diverging from the longitudinal axis 39 of the shoe.

Conversely, in the case of FIG. 14, the implementation of a single coupling means 10 on the internal side 33 of the shoe is illustrated. In this case, the direction of the resulting force, which is always oriented on the reinforced side of the shoe, is then directed, 34, on the internal side 33. This asymmetrical coupling is of course more interesting than the previous one because it accentuates the force transmitted from the internal side of the boot which corresponds to that of the internal edge of the skis where the efforts and supports must be the greatest for the attachment of the ski, and / or to optimize certain directional effects during the driving of the turns in particular.

Claims (10)

Sports shoe having a structure consisting of a rod (1) and a shell base (2) connected and articulated together around articulation axes (4) in the zone corresponding to the ankle articulation of the carrier where they are joined by at least partial interlocking one on the other, by means of the lower edge (5) of the rod (1) and a flange (6) of the shell base ( 2), and comprising a device for coupling the upper (1) with the shell base (2) consisting of two coupling means (10) arranged on either side of the dorsal zone (11) of the shoe on fixing points (22), characterized in that the coupling means (10) are removable and replaceable by other coupling means (10A, 10B, 10C) having different mechanical characteristics. Sports shoe according to claim 1, characterized in that the fixing points (22) of the coupling means (10) are located symmetrically on either side of the dorsal zone (11) of the upper (1) of the shoe. Sports shoe according to claim 1, characterized in that the fixing points (22) of the coupling means (10) are located asymmetrically on either side of the dorsal zone (11) of the upper (1) of the shoe. Sports shoe according to any one of claims 2 or 3, characterized in that the fixing points (22) of the coupling means (10) are located vertically, at a distance "X", above the axes of articulation (4) of the rod. Sports shoe according to any one of claims 2 to 4, characterized in that each coupling means (10) consists, on the one hand, of a washer (13) with shoulder (14) pierced with a hole (15) in the middle which is intended to cooperate by its shoulder (14) with a light (17) obtained in the wall of the rod (1), and on the other hand, of an assembly part (16) which is positioned on the corresponding fixing point (22), this part being removable and extending transversely to the walls of the collar (6) of the shell base (2) and of the rod (1) which it crosses passing through the hole (15) of the washer (13). Sports shoe according to claim 5, characterized in that the shoulder (14) of the washer has an outer contour smaller than that of the interior of the lumen (17) of the upper (1), the value of the space left free between the shoulder (14) and the light (17) determining the value of the relative displacement of the upper (1) relative to the shell base (2) on the flank considered of the shoe. Sports shoe according to any one of claims 5 or 6, characterized in that the lumen (17) obtained in the wall of the upper (1) is of oblong shape and is oriented on a tangent (19) coming from the hinge pin (4) corresponding to said rod (1). Sports shoe according to any one of claims 6 or 7, characterized in that the shoulder (14A) of the washer (13) is made of a rigid material. Sports shoe according to any one of claims 6 or 7, characterized in that the shoulder (14B) of the washer (13) consists of a rigid material and a compressible material elastically, the rigid material extending at the location (20) of the through hole (15) of the assembly piece (16). Sports shoe according to claim 7, characterized in that the shoulder (14C) of the washer (13) is centered and of cylindrical shape with a diameter substantially smaller than the width of the oblong opening (17).

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