EP2898788B1 - Sports shoe - Google Patents

Sports shoe Download PDF

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Publication number
EP2898788B1
EP2898788B1 EP15000086.7A EP15000086A EP2898788B1 EP 2898788 B1 EP2898788 B1 EP 2898788B1 EP 15000086 A EP15000086 A EP 15000086A EP 2898788 B1 EP2898788 B1 EP 2898788B1
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EP
European Patent Office
Prior art keywords
collar
axis
pivoting element
opening
boot according
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Active
Application number
EP15000086.7A
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German (de)
French (fr)
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EP2898788A1 (en
Inventor
Pascal Pallatin
Patrick Bollard
Alexis Guyoton
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Salomon SAS
Original Assignee
Salomon SAS
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Publication of EP2898788A1 publication Critical patent/EP2898788A1/en
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Publication of EP2898788B1 publication Critical patent/EP2898788B1/en
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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
    • A43B5/0429—Adjustment of the boot to calf or shin, i.e. fibula, tibia
    • A43B5/0433—Adjustment of the boot to calf or shin, i.e. fibula, tibia to the width of calf or shin, i.e. fibula, tibia

Definitions

  • the invention relates to a sports shoe. More specifically, the invention relates to any type of shoe for which it is necessary to block the ankle joint, such as ski boots, hiking, mountaineering or snowboarding.
  • a sports shoe comprises a lower part, called bottom shell and a high part, called collar, which is articulated on the bottom of the shell.
  • the invention applies to sports shoes provided with a mechanism for selectively blocking or unblocking the movement of the collar relative to the bottom of the shell.
  • Such a mechanism known EP-A-717,939 , comprises a translatable bolt between an unlocked position in which the movement of the collar is free and a locked position in which the movement of the collar is blocked. Due to the translational movement of the bolt, the locking mechanism has a relatively large size and outgrowth.
  • a mechanism for blocking the movements of the collar is also known to EP-A-2 070 433 .
  • This includes a rocker, which is pivotally mounted relative to the collar on the back of the shoe.
  • the pivot axis of the rocker is a transverse axis of the shoe which is parallel to the sole.
  • the rocker is disposed at the interface between the collar and the shell bottom and its rotation is controlled by a lever, which can be manipulated by the user and which is articulated on the rocker.
  • the bottom shell defines a seat, or a recess, for receiving the rocker. When the lever is lowered, the rocker engages in this recess. The rocker then has an end bearing against the surface of the seat and an end pressed against the collar. The rotation of the collar to the rear is blocked since the rocker is immobilized in the seat.
  • EP-A-2 116 145 discloses a device for locking the rotation of the collar of a shoe backwards relative to the shell bottom.
  • This locking device cooperates with a rigid tongue, which is articulated on the shell bottom around an axis parallel but not coincident with the hinge axis of the collar.
  • This tongue is disposed inside the collar, on its rear part.
  • the device comprises a lever which is rotatably mounted relative to the collar about an axis substantially perpendicular to the sole of the shoe.
  • the lever is provided with a pin, which is adapted to penetrate into a housing formed by an opening in the collar and an opening in the tongue.
  • the lever also makes it possible to tighten the collar around the calf of the user since it is linked to clamping notches of the collar by a fabric band.
  • this blocking device does not make it possible to switch to the "ON" position without completely loosening the user's calf collar.
  • the user wishes to facilitate his walk, while maintaining a certain hold of his foot inside the shoe. This happens especially when the user wants to take off his skis to walk in a steep area.
  • the locking pin of the movement of the collar may be driven out of the opening in case of heavy load.
  • the invention more particularly intends to remedy by proposing a sports shoe in which the locking mechanism of the collar is resistant and functions independently of the tightening of the collar around the calf of a user.
  • the invention relates to a sports shoe, comprising a bottom of the user's foot-holding shell, comprising a sole that extends longitudinally along a first axis, a collar for holding the calf of the user. which is articulated with the shell bottom around a second axis perpendicular to the first axis, clamping means of the collar around the calf of the user, and a locking mechanism of the rotation of the collar towards the back relative at the shell bottom, cooperating with a tongue, which is articulated on the shell bottom around a third parallel axis and not coincident with the second axis, and which is arranged at the rear part inside the collar, this mechanism of block comprising a rocker, which is pivotally mounted relative to the collar about an axis perpendicular to the second axis of articulation and a lever of the rocker in a housing delimited jointly by a first opening formed in the tongue and a second opening in the collar when the collar is in an advanced position relative to the bottom shell.
  • the locking of the rotation of the collar relative to the lower shell is performed independently clamping means of the collar around the calf of the user. Therefore, it is possible to switch to the "ON" position without completely loosening the user's calf collar.
  • the passage of the mechanism in blocked configuration is simply done by pivoting the lever, which implies that the energy required to manipulate the locking mechanism is low.
  • the fact that the axis of articulation of the rocker is perpendicular to the axis of articulation of the collar on the bottom of the shell improves the mechanical strength of the locking mechanism and limits the risk of unblocking the mechanism in case of heavy load .
  • the shoe C is a ski boot, adapted for the right foot of a user.
  • This shoe C comprises a lower portion 2 for receiving the foot of the user, which is provided to surround the foot of the user.
  • This lower part 2 called “bottom hull”, keeps the user's foot during skiing. It extends along a longitudinal axis X1 and comprises a tread 4 and vertical flanks 6 from the sole 4.
  • the vertical flanks 6 define with the sole 4 a cavity for receiving the foot of the user.
  • the upper part of the shell bottom 2 forms a passage opening for the user's foot.
  • a soft foam or fabric liner is disposed within the boot for the comfort of the user. However, this liner is not shown in the figures.
  • the "forward" and “backward” directions must be interpreted in relation to the user's foot in place in the shoe C.
  • the front designates a direction directed towards the toes of the user's foot.
  • the back designates a direction directed towards the heel of the foot of the user.
  • the shoe C also has a high portion 8 for maintaining the calf of the user, which extends the shell bottom 2 and which is provided to surround the lower leg of the user.
  • This upper part called “collar”
  • This upper part called “collar”
  • the two side panels 10 are intended to be attached to each other around the bottom of the leg of the user, especially at the level of the shin of the latter.
  • the rear portion 12 bears against the calf of the user when using the shoe C.
  • Clamping means M1 or equivalent clamping means can attach the two panels 10 one with the 'other. In practice, the means M1 comprise a clamping loop which is not shown in the figures.
  • the collar 8 is fixed to the shell bottom 2 by means of two articulation shafts 14. These two shafts 14 are placed facing each other, each on a vertical flank 6 of the bottom This fastening of the collar 8 on the shell bottom 2 gives it the possibility of pivoting about an axis X2 defined by the two articulation shafts 14 and perpendicular to the axis X1, that is to say say in the forward / backward direction.
  • the pivoting of the collar 8 relative to the bottom of the shell 2 has a maximum amplitude of less than 70 ° and facilitates the walk of the user, allowing the longitudinal flexion of the ankle. Indeed, when the foot of the user is caught in a rising shoe, which covers the ankle joint, the latter is hampered in its movements.
  • the articulation between the collar 8 and the shell bottom 2 restores the ankle mobility in the forward / backward direction and facilitates walking.
  • the shell bottom 2 and the collar 8 are generally made of synthetic materials, such as plastics. These elements can also be made of composite materials.
  • Some sports practices require a partial immobilization or total immobilization of the ankle joint, that is to say that the articulation of the ankle is at least limited in its amplitude. This is the case of skiing, and some mountaineering practices. This is why the shoe C is equipped with an M2 mechanism for locking the rotation of the collar 8 towards the rear.
  • This locking mechanism M2 cooperates with a rigid tongue 16, commonly called "spoiler".
  • the spoiler 16 is better visible at the figure 2 it is articulated on the shell bottom 2 around an axis X3 parallel, but not coincidental, with the axis X2.
  • the spoiler 16 defines an opening 016 which is generally rectangular.
  • the spoiler 16 is hinged at the rear of the shell bottom 2, about the axis X3, and is disposed inside the collar 8, the rear side.
  • the lock mechanism M2 may be in a locked or unlocked configuration.
  • the mechanism M2 blocks the rotation of the collar 8 backwards relative to the shell bottom 2. This is the "SKI" position. In this position, the user must be able to benefit from a rear support as firm as possible.
  • the locking mechanism M2 is disposed on the outer surface of the collar 8 at the rear of the latter. As better visible at the figure 7 it comprises a base 18 for fixing the collar 8. This base 18 is disposed at an opening in the collar 8.
  • the base 18 comprises two wings 21 for bearing on the edges of the opening of the collar 8. Each of the wings 21 defines a hole 20 for passage of a screw for attachment to the collar 8.
  • the orifices 20 for the passage of the screws are each centered on an axis X20.
  • X6 is an axis passing through the center of the two orifices 20.
  • the axis X6 is perpendicular to the axes X20 and transverse to the sole.
  • the screws are not visible in the figures but extend in practice each according to the X20 axis. They are tightened in threads provided in the collar 8.
  • the base 18 also defines an opening 018 for the passage of a rocker 22 when the mechanism M2 is locked.
  • the opening 018 indirectly forms an opening of the collar 8 insofar as the base 18 is fixed to the collar 8. In other words, the opening 018 is integrated into the opening of the collar 8 in which the base 18 is placed.
  • the rocker 22 is rotatably mounted on the base 18, about a pivot 23.
  • This pivot 23 is partly visible at the figure 8 and is clevised by two fingers 220 of the rocker 22. These fingers 220 are arranged at one end of the rocker 22.
  • the pivot 23 is also immobilized, at its two ends, in through holes, not visible, of the base 18
  • the pivot 23 has an axis of rotation X4, which is perpendicular to the sole 4 of the bottom of the shell 2 and which can be perpendicular to this sole in the configuration of the Figures 1 to 5 , 7 and 9 .
  • the fact that the axis X4 is perpendicular to the sole 4 means that it is secant with the surface of the sole 4, or at least with a horizontal plane containing the surface of the sole 4.
  • the axis X4 is an axis of rotation of the rocker 22 around the base 18. This axis X4 is straight, that is to say, it is contained in a vertical plane parallel to or passing through the axis X1. Moreover, the axis X4 is parallel to the axis X6.
  • the rocker 22 extends transversely to the axis X1, on the rear portion 12 of the collar 8. It comprises a blocking block 222, which is disposed at the end opposite the fingers 220.
  • This block 222 is slightly curved by relative to the rest of the rocker 22, in a direction directed towards the inside of the shoe C. In other words, the blocking block 222 forms a bent part of the rocker 22.
  • the block 222 is adapted to penetrate both the opening 016 and the opening 018 and has a lateral sliding surface S222, which slides against the side walls opposite to the axis X4 of the openings 016 and 018 during the passage in blocked configuration.
  • the tile also has an upper sliding surface S222u and a lower sliding surface S222d. These two surfaces are parallel to each other and both substantially perpendicular to the lateral sliding surface S222.
  • a lever 24 is pivotally mounted on the rocker 22, about an axis X5 parallel to the axis X4 and not coincident with it. More specifically, a hinge shaft 28 passes through the rocker 22 and is housed at its two ends in lateral through holes of the lever 24. This lever 24 is manipulated by the user to go from the unlocked configuration to the locked configuration and vice versa . Indeed, the lever 24 has a bearing surface S24 on the rocker 22. This surface S24 is oriented towards the rocker 22. The movement F2 of rotation of the lever 24 around the pivot 28 is transformed into a movement F3 translation of the block blocking 222 in a direction generally parallel to the axis X1. The lever 24 thus forms a control cam of the locking mechanism M2 and the surface S24 is a cam surface.
  • a spiral spring 26 is wound around the hinge pin 23 of the rocker 22 on the base 18.
  • the spring 26 tends to keep the rocker 22 in locked configuration, that is to say engaged in the openings 016 and 018.
  • the spring 26 thus forms an elastic return means of the rocker 22 in the openings 016 and 018, which opposes the removal of the rocker 22 outside these openings.
  • the rocker 22 can automatically enter the opening 016 of the spoiler 16.
  • the openings 016 and 018 each have a height h16 and h18 which are slightly greater than a height h222 of the block 222
  • the block 222 can thus enter the openings 016 and 018.
  • the heights h16, h18 and h222 are substantially equal and are each measured parallel to the axis X4. In practice, the height h222 is substantially equal, that is to say equal to 0.5%, and less than the smallest height h16 and h18.
  • the opening 018 and the opening 016 thus together form a housing 022 for receiving the rocker 22.
  • the clearance J of vertical displacement of the block 222 inside the housing 022 is almost zero and the hinge pins X2 and X3, respectively collar 8 and spoiler 16 are not confused, so that when the rocker 22 is inserted into the housing 022, there is no possibility of relative sliding between the collar 8 and the spoiler 16.
  • the collar 8 and the spoiler 16 are each locked in rotation around their axis of articulation on the bottom of the shell 2 and the collar 8 is in the advanced position, or blocking.
  • the collar 8 In this position, the collar 8 is immobile in rotation about the axis X2 and exerts a firm support on the calf of the user, which is the goal sought by the latter during the practice of skiing.
  • the clearance of the block 222 inside the housing 022 is chosen less than 2 mm. This game corresponds to the difference between the height h222 of the block 222 and the smaller height h16 and h18.
  • the rocker enters the housing 022 by a rotational movement along an axis X4 which is perpendicular to the axis X3 of rotation of the spoiler and that X2 of the collar. Therefore, the clearance of the block 222 in the opening 016 along the axis X4 can be very small and the walls of the opening 016 which are opposite the upper sliding surfaces S222u and lower S222d of the block can be substantially tangent to a cylinder centered on the X3 axis of the spoiler.
  • the locking mechanism M2 is independent of the clamping means M1 clamp 8 around the calf of the user. It is therefore possible to switch to the on position by acting on the lever 24 without completely loosening the collar 8 of the calf of the user. This is particularly advantageous when the user wishes to move into position by keeping a certain hold of his ankle, which is convenient when the user wants to take off his skis to walk in an area steep.
  • the energy to be supplied to lock the mechanism M2 is low since it is only necessary to pivot the lever 24.
  • the locking mechanism M2 of the collar 8 relative to the shell bottom 2 may be implemented on any other type of shoe requiring a blockage of the ankle joint.
  • the M2 mechanism can be adapted to mountaineering, hiking, snowboarding, skating or rollerblading shoes.
  • the base 18 is fixed to the collar 8 by rivets.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

L'invention concerne une chaussure de sport. Plus précisément, l'invention concerne tout type de chaussure pour lequel il est nécessaire de bloquer l'articulation de la cheville, comme les chaussures de ski, de randonnée, d'alpinisme ou de snowboard.The invention relates to a sports shoe. More specifically, the invention relates to any type of shoe for which it is necessary to block the ankle joint, such as ski boots, hiking, mountaineering or snowboarding.

De manière connue, une chaussure de sport comprend une partie basse, appelée bas de coque et une partie haute, appelée collier, qui est articulée sur le bas de coque. L'invention s'applique aux chaussures de sport pourvues d'un mécanisme permettant sélectivement de bloquer ou débloquer le mouvement du collier par rapport au bas de coque.In known manner, a sports shoe comprises a lower part, called bottom shell and a high part, called collar, which is articulated on the bottom of the shell. The invention applies to sports shoes provided with a mechanism for selectively blocking or unblocking the movement of the collar relative to the bottom of the shell.

Un tel mécanisme, connu de EP-A-717 939 , comporte un pêne translatant entre une position déverrouillée dans laquelle le mouvement du collier est libre et une position verrouillée dans laquelle le mouvement du collier est bloqué. Du fait du mouvement translatif du pêne, le mécanisme de blocage présente un encombrement et une excroissance relativement importante.Such a mechanism, known EP-A-717,939 , comprises a translatable bolt between an unlocked position in which the movement of the collar is free and a locked position in which the movement of the collar is blocked. Due to the translational movement of the bolt, the locking mechanism has a relatively large size and outgrowth.

Un mécanisme de blocage des mouvements du collier est également connu de EP-A-2 070 433 . Celui-ci comporte un basculeur, qui est monté de manière pivotante par rapport au collier sur la partie arrière de la chaussure. L'axe de pivotement du basculeur est un axe transversal de la chaussure qui est parallèle à la semelle. Le basculeur est disposé à l'interface entre le collier et le bas de coque et sa rotation est commandée par un levier, qui peut être manipulé par l'utilisateur et qui est articulé sur le basculeur. Le bas de coque délimite un siège, ou un renfoncement, de réception du basculeur. Lorsque le levier est baissé, le basculeur s'engage dans ce renfoncement. Le basculeur comporte alors une extrémité en appui contre la surface du siège et une extrémité plaquée contre le collier. La rotation du collier vers l'arrière est bloquée puisque le basculeur est immobilisé dans le siège.A mechanism for blocking the movements of the collar is also known to EP-A-2 070 433 . This includes a rocker, which is pivotally mounted relative to the collar on the back of the shoe. The pivot axis of the rocker is a transverse axis of the shoe which is parallel to the sole. The rocker is disposed at the interface between the collar and the shell bottom and its rotation is controlled by a lever, which can be manipulated by the user and which is articulated on the rocker. The bottom shell defines a seat, or a recess, for receiving the rocker. When the lever is lowered, the rocker engages in this recess. The rocker then has an end bearing against the surface of the seat and an end pressed against the collar. The rotation of the collar to the rear is blocked since the rocker is immobilized in the seat.

Bien que ce mécanisme donne satisfaction, il peut être déverrouillé, intempestivement ou involontairement, lors de l'application d'une forte charge dirigée vers le bas sur le collier. Ainsi, lorsque le mécanisme est particulièrement sollicité, par exemple lors d'un saut, le basculeur est susceptible d'être « chassé » du siège et la chaussure passe en position « MARCHE » dans laquelle le collier est libre de pivoter vers l'arrière. La cheville du skieur n'est plus maintenue, ce qui est dangereux lorsque cela arrive en pleine activité.Although this mechanism is satisfactory, it can be unlocked, inadvertently or involuntarily, when applying a strong load directed downward on the collar. Thus, when the mechanism is particularly stressed, for example during a jump, the rocker is likely to be "driven" from the seat and the shoe goes to the "ON" position in which the collar is free to pivot backwards . The ankle of the skier is no longer maintained, which is dangerous when it happens in full activity.

En outre, le fait de prévoir un basculeur articulé autour d'un axe parallèle à la semelle engendre des contraintes localisées importantes au niveau des attaches du mécanisme, et une fatigue prématurée de celui-ci. Il est donc nécessaire de le réparer ou de le remplacer fréquemment.In addition, the fact of providing a rocker articulated about an axis parallel to the sole causes significant localized stresses at the fasteners of the mechanism, and premature fatigue thereof. It is therefore necessary to repair or replace it frequently.

Par ailleurs, EP-A-2 116 145 divulgue un dispositif de blocage de la rotation du collier d'une chaussure vers l'arrière par rapport au bas de coque. Ce dispositif de blocage coopère avec une languette rigide, qui est articulée sur le bas de coque autour d'un axe parallèle mais non confondu avec l'axe d'articulation du collier. Cette languette est disposée à l'intérieur du collier, sur sa partie arrière. Le dispositif comprend un levier qui est monté de manière rotative par rapport au collier autour d'un axe sensiblement perpendiculaire à la semelle de la chaussure. Le levier est pourvu d'un pion, qui est adapté pour pénétrer dans un logement formé par une ouverture ménagée dans le collier et une ouverture ménagée dans la languette. Ainsi, lorsque le pion est inséré dans les deux ouvertures, il n'existe pas de possibilité de glissement relatif entre la languette et le collier, si bien que le collier est immobilisé en rotation par rapport au bas de coque.Otherwise, EP-A-2 116 145 discloses a device for locking the rotation of the collar of a shoe backwards relative to the shell bottom. This locking device cooperates with a rigid tongue, which is articulated on the shell bottom around an axis parallel but not coincident with the hinge axis of the collar. This tongue is disposed inside the collar, on its rear part. The device comprises a lever which is rotatably mounted relative to the collar about an axis substantially perpendicular to the sole of the shoe. The lever is provided with a pin, which is adapted to penetrate into a housing formed by an opening in the collar and an opening in the tongue. Thus, when the pawn is inserted in the two openings, it does not exist relative sliding possibility between the tongue and the collar, so that the collar is immobilized in rotation relative to the shell bottom.

Cependant, le levier permet également de serrer le collier autour du mollet de l'utilisateur puisqu'il est lié à des crans de serrage du collier par une bande en tissu.However, the lever also makes it possible to tighten the collar around the calf of the user since it is linked to clamping notches of the collar by a fabric band.

Ainsi, ce dispositif de blocage ne permet pas de passer en position « MARCHE » sans desserrer complètement le collier du mollet du l'utilisateur. Or, il y a certaines situations où l'utilisateur souhaite faciliter sa marche, tout en conservant une certaine tenue de son pied à l'intérieur de la chaussure. Cela arrive notamment lorsque l'utilisateur souhaite déchausser ses skis pour marcher dans une zone escarpée. En outre, pour un faible serrage du collier autour du mollet, le pion de blocage du mouvement du collier risque d'être chassé de l'ouverture en cas de forte charge.Thus, this blocking device does not make it possible to switch to the "ON" position without completely loosening the user's calf collar. However, there are certain situations where the user wishes to facilitate his walk, while maintaining a certain hold of his foot inside the shoe. This happens especially when the user wants to take off his skis to walk in a steep area. In addition, for a weak clamping of the collar around the calf, the locking pin of the movement of the collar may be driven out of the opening in case of heavy load.

C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant une chaussure de sport dans laquelle le mécanisme de blocage du collier est résistant et fonctionne indépendamment du serrage du collier autour du mollet d'un utilisateur.It is these drawbacks that the invention more particularly intends to remedy by proposing a sports shoe in which the locking mechanism of the collar is resistant and functions independently of the tightening of the collar around the calf of a user.

A cet effet, l'invention concerne une chaussure de sport, comprenant un bas de coque de maintien du pied de l'utilisateur, comprenant une semelle qui s'étend longitudinalement selon un premier axe, un collier de maintien du mollet de l'utilisateur, qui est articulé avec le bas de coque autour d'un deuxième axe perpendiculaire au premier axe, des moyens de serrage du collier autour du mollet de l'utilisateur, et un mécanisme de blocage de la rotation du collier vers l'arrière par rapport au bas de coque, coopérant avec une languette, qui est articulée sur le bas de coque autour d'un troisième axe parallèle et non confondu avec le deuxième axe, et qui est disposée en partie arrière à l'intérieur du collier, ce mécanisme de blocage comprenant un basculeur, qui est monté pivotant par rapport au collier autour d'un axe perpendiculaire au deuxième axe d'articulation et un levier d'enfoncement du basculeur dans un logement délimité conjointement par une première ouverture ménagée dans la languette et une deuxième ouverture ménagée dans le collier lorsque le collier est dans une position avancée par rapport au bas de coque. Conformément à l'invention, le mécanisme de blocage est indépendant des moyens de serrage du collier.For this purpose, the invention relates to a sports shoe, comprising a bottom of the user's foot-holding shell, comprising a sole that extends longitudinally along a first axis, a collar for holding the calf of the user. which is articulated with the shell bottom around a second axis perpendicular to the first axis, clamping means of the collar around the calf of the user, and a locking mechanism of the rotation of the collar towards the back relative at the shell bottom, cooperating with a tongue, which is articulated on the shell bottom around a third parallel axis and not coincident with the second axis, and which is arranged at the rear part inside the collar, this mechanism of block comprising a rocker, which is pivotally mounted relative to the collar about an axis perpendicular to the second axis of articulation and a lever of the rocker in a housing delimited jointly by a first opening formed in the tongue and a second opening in the collar when the collar is in an advanced position relative to the bottom shell. According to the invention, the locking mechanism is independent of the clamping means of the collar.

Grâce à l'invention, le blocage de la rotation du collier par rapport au bas de coque s'effectue indépendamment des moyens de serrage du collier autour du mollet de l'utilisateur. Par conséquent, il est possible de passer en position « MARCHE » sans desserrer complètement le collier du mollet de l'utilisateur. En outre, le passage du mécanisme en configuration bloquée s'effectue simplement en pivotant le levier, ce qui implique que l'énergie nécessaire à la manipulation du mécanisme de blocage est faible. Enfin, le fait que l'axe d'articulation du basculeur soit perpendiculaire à l'axe d'articulation du collier sur le bas de coque améliore la tenue mécanique du mécanisme de blocage et limite le risque de déblocage du mécanisme en cas de forte charge.Thanks to the invention, the locking of the rotation of the collar relative to the lower shell is performed independently clamping means of the collar around the calf of the user. Therefore, it is possible to switch to the "ON" position without completely loosening the user's calf collar. In addition, the passage of the mechanism in blocked configuration is simply done by pivoting the lever, which implies that the energy required to manipulate the locking mechanism is low. Finally, the fact that the axis of articulation of the rocker is perpendicular to the axis of articulation of the collar on the bottom of the shell improves the mechanical strength of the locking mechanism and limits the risk of unblocking the mechanism in case of heavy load .

Selon des aspects avantageux mais non obligatoires de l'invention, une telle chaussure de sport peut incorporer une ou plusieurs des caractéristiques suivantes, prises dans toute combinaison techniquement admissible :

  • Le levier est monté pivotant sur le basculeur autour d'un axe parallèle à l'axe de rotation du basculeur.
  • Le mécanisme de blocage comprend une base de fixation au collier sur laquelle est articulé le basculeur.
  • La base délimite deux orifices de réception de moyens de fixation au collier et une ouverture de réception du basculeur.
  • Un axe passant par le centre des orifices de réception des moyens de fixation est perpendiculaire à l'axe de rotation du basculeur.
  • Le basculeur comporte un pavé de blocage, qui forme une partie recourbée du basculeur et qui est adapté pour pénétrer dans le logement délimité conjointement par la languette et le collier.
  • La hauteur du pavé est sensiblement égale et inférieure à la plus petite des hauteurs parmi la hauteur de l'ouverture ménagée dans la languette et la hauteur de l'ouverture ménagée dans le collier.
  • Le mécanisme de blocage comporte en outre des moyens de rappel élastique du basculeur dans son logement, qui s'opposent au retrait du basculeur hors du logement.
  • Les moyens de rappel élastique sont formés par un ressort. Ce ressort peut par exemple être enroulé autour d'un pivot d'articulation du basculeur sur une base de fixation au collier.
  • Lorsque le basculeur est enfoncé dans l'ouverture du collier, il est prévu pour s'engager automatiquement dans l'ouverture de la languette par basculement du collier vers l'avant.
According to advantageous but not compulsory aspects of the invention, such a sports shoe may incorporate one or more of the following features, taken in any technically permissible combination:
  • The lever is pivotally mounted on the rocker about an axis parallel to the axis of rotation of the rocker.
  • The locking mechanism comprises a fastening base to the collar on which is articulated the rocker.
  • The base delimits two receiving orifices for fastening means to the collar and an opening for receiving the rocker.
  • An axis passing through the center of the receiving ports of the fastening means is perpendicular to the axis of rotation of the rocker.
  • The rocker comprises a blocking block, which forms a curved portion of the rocker and which is adapted to enter the housing delimited jointly by the tongue and the collar.
  • The height of the pavement is substantially equal to and less than the smallest height among the height of the opening in the tongue and the height of the opening in the collar.
  • The locking mechanism further comprises elastic return means of the rocker in its housing, which oppose the removal of the rocker out of the housing.
  • The elastic return means are formed by a spring. This spring may for example be wrapped around a hinge pin of the rocker on a fastening base to the collar.
  • When the rocker is pressed into the opening of the collar, it is intended to engage automatically in the opening of the tongue by tilting the collar forward.

L'invention et d'autres avantages de celle-ci apparaitront plus clairement à la lumière de la description qui va suivre d'un mode de réalisation d'une chaussure de sport conforme à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins dans lesquels :

  • la figure 1 est une vue en perspective d'une chaussure de sport conforme à l'invention, comprenant un bas de coque, un collier articulé sur le bas de coque et un mécanisme de blocage de la rotation du collier vers l'arrière par rapport au bas de coque,
  • la figure 2 est une vue analogue à la figure 1 prise selon un autre angle,
  • la figure 3 est une coupe selon le plan III de la figure 2,
  • la figure 4 est une coupe analogue à la figure 3, dans laquelle la rotation du collier par rapport au bas de coque est bloquée,
  • la figure 5 est une vue à plus grande échelle de l'encadré V de la figure 3,
  • la figure 6 est une vue à plus grande échelle de l'encadré VI de la figure 4,
  • la figure 7 est une vue en perspective à plus grande échelle du mécanisme de blocage, dans la configuration débloquée des figures 3 et 5,
  • la figure 8 est une vue analogue à la figure 7, dans laquelle le mécanisme de blocage est dans la configuration bloquée des figures 4 et 6, et
  • la figure 9 est une coupe partielle et à plus grande échelle, selon le plan IX à la figure 1.
The invention and other advantages thereof will appear more clearly in the light of the following description of an embodiment of a sports shoe according to its principle, given only as an example and made with reference to the drawings in which:
  • the figure 1 is a perspective view of a sports shoe according to the invention, comprising a bottom shell, a hinged collar on the bottom of the shell and a locking mechanism of the rotation of the collar backwards relative to the bottom of shell,
  • the figure 2 is a view similar to the figure 1 taken from another angle,
  • the figure 3 is a section according to plan III of the figure 2 ,
  • the figure 4 is a cut similar to the figure 3 in which the rotation of the collar relative to the bottom of the shell is blocked,
  • the figure 5 is a larger-scale view of Box V of the figure 3 ,
  • the figure 6 is a larger-scale view of Box VI of the figure 4 ,
  • the figure 7 is a perspective view on a larger scale of the locking mechanism, in the unlocked configuration of figures 3 and 5 ,
  • the figure 8 is a view similar to the figure 7 , in which the locking mechanism is in the locked configuration of figures 4 and 6 , and
  • the figure 9 is a partial section and on a larger scale, according to plan IX at the figure 1 .

Sur la figure 1 est représentée une chaussure de sport C. La chaussure C est une chaussure de ski, adaptée pour le pied droit d'un utilisateur. Cette chaussure C comprend une partie basse 2 de réception du pied de l'utilisateur, qui est prévue pour entourer le pied de l'utilisateur. Cette partie basse 2, appelée « bas de coque », maintient le pied de l'utilisateur pendant le ski. Elle s'étend selon un axe longitudinal X1 et comporte une semelle de marche 4 ainsi que des flancs verticaux 6 issus de la semelle 4. Les flancs verticaux 6 définissent avec la semelle 4 une cavité de réception du pied de l'utilisateur. La partie haute du bas de coque 2 forme une ouverture de passage pour le pied de l'utilisateur. En pratique, un chausson souple en mousse ou en tissu est disposé à l'intérieur de la chaussure pour le confort de l'utilisateur. Cependant, ce chausson n'est pas représenté sur les figures.On the figure 1 is represented a sport shoe C. The shoe C is a ski boot, adapted for the right foot of a user. This shoe C comprises a lower portion 2 for receiving the foot of the user, which is provided to surround the foot of the user. This lower part 2, called "bottom hull", keeps the user's foot during skiing. It extends along a longitudinal axis X1 and comprises a tread 4 and vertical flanks 6 from the sole 4. The vertical flanks 6 define with the sole 4 a cavity for receiving the foot of the user. The upper part of the shell bottom 2 forms a passage opening for the user's foot. In practice, a soft foam or fabric liner is disposed within the boot for the comfort of the user. However, this liner is not shown in the figures.

Dans le présent document, les directions « avant » et « arrière » doivent être interprétées par rapport au pied de l'utilisateur en place dans la chaussure C. Ainsi, l'avant désigne une direction orientée vers les orteils du pied de l'utilisateur, alors que l'arrière désigne une direction orientée vers le talon du pied de l'utilisateur.In this document, the "forward" and "backward" directions must be interpreted in relation to the user's foot in place in the shoe C. Thus, the front designates a direction directed towards the toes of the user's foot. , while the back designates a direction directed towards the heel of the foot of the user.

La chaussure C comporte également une partie haute 8 de maintien du mollet de l'utilisateur, qui prolonge le bas de coque 2 et qui est prévue pour entourer le bas de jambe de l'utilisateur. Cette partie haute, appelée « collier », comporte deux pans latéraux 10, qui s'étendent à partir d'une partie arrière 12. Les deux pans latéraux 10 sont destinés à être attachés l'un avec l'autre autour du bas de la jambe de l'utilisateur, notamment au niveau du tibia de celui-ci. La partie arrière 12 est en appui contre le mollet de l'utilisateur lors de l'utilisation de la chaussure C. Des moyens M1 de serrage à crans ou des moyens de serrage équivalents permettent d'attacher les deux pans 10 l'un avec l'autre. En pratique, les moyens M1 comprennent une boucle de serrage qui n'est pas représentée sur les figures.The shoe C also has a high portion 8 for maintaining the calf of the user, which extends the shell bottom 2 and which is provided to surround the lower leg of the user. This upper part, called "collar", has two side panels 10, which extend from a rear portion 12. The two side panels 10 are intended to be attached to each other around the bottom of the leg of the user, especially at the level of the shin of the latter. The rear portion 12 bears against the calf of the user when using the shoe C. Clamping means M1 or equivalent clamping means can attach the two panels 10 one with the 'other. In practice, the means M1 comprise a clamping loop which is not shown in the figures.

Le collier 8 est fixé au bas de coque 2 par l'intermédiaire de deux arbres d'articulation 14. Ces deux arbres 14 sont placés en vis-à-vis l'un de l'autre, chacun sur un flanc vertical 6 du bas de coque 2. Cette fixation du collier 8 sur le bas de coque 2 lui donne la possibilité de pivoter autour d'un axe X2 défini par les deux arbres d'articulation 14 et perpendiculaire à l'axe X1, c'est-à-dire dans le sens avant/arrière.The collar 8 is fixed to the shell bottom 2 by means of two articulation shafts 14. These two shafts 14 are placed facing each other, each on a vertical flank 6 of the bottom This fastening of the collar 8 on the shell bottom 2 gives it the possibility of pivoting about an axis X2 defined by the two articulation shafts 14 and perpendicular to the axis X1, that is to say say in the forward / backward direction.

Le pivotement du collier 8 par rapport au bas de coque 2 a une amplitude maximale inférieure à 70° et facilite la marche de l'utilisateur, en autorisant la flexion longitudinale de la cheville. En effet, lorsque le pied de l'utilisateur est pris dans une chaussure montante, qui recouvre l'articulation de la cheville, cette dernière est entravée dans ses mouvements. L'articulation entre le collier 8 et le bas de coque 2 redonne à la cheville sa mobilité dans le sens avant/arrière et facilite la marche.The pivoting of the collar 8 relative to the bottom of the shell 2 has a maximum amplitude of less than 70 ° and facilitates the walk of the user, allowing the longitudinal flexion of the ankle. Indeed, when the foot of the user is caught in a rising shoe, which covers the ankle joint, the latter is hampered in its movements. The articulation between the collar 8 and the shell bottom 2 restores the ankle mobility in the forward / backward direction and facilitates walking.

Le bas de coque 2 et le collier 8 sont généralement réalisés dans des matériaux synthétiques, tels que des matières plastiques. On peut également réaliser ces éléments en matériaux composites.The shell bottom 2 and the collar 8 are generally made of synthetic materials, such as plastics. These elements can also be made of composite materials.

Certaines pratiques sportives requièrent une immobilisation partielle ou totale de l'articulation de la cheville, c'est-à-dire que l'articulation de la cheville soit au moins limitée dans son amplitude. C'est le cas du ski, et de certaines pratiques d'alpinisme. C'est pourquoi la chaussure C est équipée d'un mécanisme M2 de blocage de la rotation du collier 8 vers l'arrière.Some sports practices require a partial immobilization or total immobilization of the ankle joint, that is to say that the articulation of the ankle is at least limited in its amplitude. This is the case of skiing, and some mountaineering practices. This is why the shoe C is equipped with an M2 mechanism for locking the rotation of the collar 8 towards the rear.

Ce mécanisme de blocage M2 coopère avec une languette rigide 16, couramment appelée « spoiler ». Le spoiler 16 est mieux visible à la figure 2, il est articulé sur le bas de coque 2 autour d'un axe X3 parallèle, mais non confondu, avec l'axe X2. Le spoiler 16 délimite une ouverture 016 qui est globalement rectangulaire. Le spoiler 16 est articulé en partie arrière du bas de coque 2, autour de l'axe X3, et est disposé à l'intérieur du collier 8, du côté arrière.This locking mechanism M2 cooperates with a rigid tongue 16, commonly called "spoiler". The spoiler 16 is better visible at the figure 2 it is articulated on the shell bottom 2 around an axis X3 parallel, but not coincidental, with the axis X2. The spoiler 16 defines an opening 016 which is generally rectangular. The spoiler 16 is hinged at the rear of the shell bottom 2, about the axis X3, and is disposed inside the collar 8, the rear side.

Le mécanisme de blocage M2 peut être dans une configuration bloquée ou débloquée.The lock mechanism M2 may be in a locked or unlocked configuration.

Sur les figures 3 et 4, les hachures ne sont pas représentées pour la clarté des dessins.On the figures 3 and 4 the hatching is not shown for the sake of clarity.

En configuration débloquée, représentée aux figures 1 à 3, 5 et 7 et 9, le mécanisme M2 ne bloque pas la rotation, vers l'arrière ou vers l'avant, du collier 8 par rapport au bas de coque 2. C'est la position "MARCHE". Dans cette position, l'utilisateur peut à la fois fléchir ses jambes vers l'avant ou vers l'arrière à chaque fois qu'il pose le pied au sol. L'utilisateur peut donc articuler sa cheville, ce qui facilite la marche.In unlocked configuration, represented in Figures 1 to 3 , 5 and 7 and 9 the mechanism M2 does not block the rotation, towards the rear or towards the front, of the collar 8 with respect to the bottom of the shell 2. This is the "ON" position. In this position, the user can both bend his legs forwards or backwards each time he places his foot on the ground. The user can therefore articulate his ankle, which facilitates walking.

En revanche, en configuration bloquée, représentée aux figures 4, 6 et 8, le mécanisme M2 bloque la rotation du collier 8 vers l'arrière par rapport au bas de coque 2. C'est la position "SKI". Dans cette position, l'utilisateur doit pouvoir bénéficier d'un appui arrière le plus ferme possible.On the other hand, in locked configuration, represented in figures 4 , 6 and 8 , the mechanism M2 blocks the rotation of the collar 8 backwards relative to the shell bottom 2. This is the "SKI" position. In this position, the user must be able to benefit from a rear support as firm as possible.

Le mécanisme de blocage M2 est disposé sur la surface externe du collier 8 en partie arrière de celui-ci. Comme mieux visible à la figure 7, il comprend une base 18 de fixation au collier 8. Cette base 18 est disposée au niveau d'une ouverture ménagée dans le collier 8. La base 18 comprend deux ailes 21 d'appui sur les bords de l'ouverture du collier 8. Chacune des ailes 21 délimite un orifice 20 de passage d'une vis pour la fixation au collier 8. Les orifices 20 de passage des vis sont chacun centrés sur un axe X20. On note X6 un axe passant par le centre des deux orifices 20. L'axe X6 est perpendiculaire aux axes X20 et transversal à la semelle. Les vis ne sont pas visibles sur les figures mais s'étendent en pratique chacune selon l'axe X20. Elles sont serrées dans des taraudages prévus dans le collier 8.The locking mechanism M2 is disposed on the outer surface of the collar 8 at the rear of the latter. As better visible at the figure 7 it comprises a base 18 for fixing the collar 8. This base 18 is disposed at an opening in the collar 8. The base 18 comprises two wings 21 for bearing on the edges of the opening of the collar 8. Each of the wings 21 defines a hole 20 for passage of a screw for attachment to the collar 8. The orifices 20 for the passage of the screws are each centered on an axis X20. X6 is an axis passing through the center of the two orifices 20. The axis X6 is perpendicular to the axes X20 and transverse to the sole. The screws are not visible in the figures but extend in practice each according to the X20 axis. They are tightened in threads provided in the collar 8.

La base 18 délimite également une ouverture 018 de passage d'un basculeur 22 lors du blocage du mécanisme M2. L'ouverture 018 forme indirectement une ouverture du collier 8 dans la mesure où la base 18 est fixée au collier 8. Autrement dit, l'ouverture 018 est intégrée à l'ouverture du collier 8 dans laquelle est placée la base 18.The base 18 also defines an opening 018 for the passage of a rocker 22 when the mechanism M2 is locked. The opening 018 indirectly forms an opening of the collar 8 insofar as the base 18 is fixed to the collar 8. In other words, the opening 018 is integrated into the opening of the collar 8 in which the base 18 is placed.

Le basculeur 22 est monté de manière rotative sur la base 18, autour d'un pivot 23. Ce pivot 23 est en partie visible à la figure 8 et est pris en chape par deux doigts 220 du basculeur 22. Ces doigts 220 sont disposés à une extrémité du basculeur 22. Le pivot 23 est par ailleurs immobilisé, à ses deux extrémités, dans des trous traversants, non visibles, de la base 18. Le pivot 23 a un axe de rotation X4, qui est perpendiculaire à la semelle 4 du bas de coque 2 et qui peut être perpendiculaire à cette semelle dans la configuration des figures 1 à 5, 7 et 9. Le fait que l'axe X4 est perpendiculaire à la semelle 4 signifie qu'il est sécant avec la surface de la semelle 4, ou au moins avec un plan horizontal contenant la surface de la semelle 4. L'axe X4 est un axe de rotation du basculeur 22 autour de la base 18. Cet axe X4 est droit, c'est-à-dire qu'il est contenu dans un plan vertical parallèle à ou passant par l'axe X1. Par ailleurs, l'axe X4 est parallèle à l'axe X6.The rocker 22 is rotatably mounted on the base 18, about a pivot 23. This pivot 23 is partly visible at the figure 8 and is clevised by two fingers 220 of the rocker 22. These fingers 220 are arranged at one end of the rocker 22. The pivot 23 is also immobilized, at its two ends, in through holes, not visible, of the base 18 The pivot 23 has an axis of rotation X4, which is perpendicular to the sole 4 of the bottom of the shell 2 and which can be perpendicular to this sole in the configuration of the Figures 1 to 5 , 7 and 9 . The fact that the axis X4 is perpendicular to the sole 4 means that it is secant with the surface of the sole 4, or at least with a horizontal plane containing the surface of the sole 4. The axis X4 is an axis of rotation of the rocker 22 around the base 18. This axis X4 is straight, that is to say, it is contained in a vertical plane parallel to or passing through the axis X1. Moreover, the axis X4 is parallel to the axis X6.

Comme visible à la figure 9, le basculeur 22 s'étend transversalement à l'axe X1, sur la partie arrière 12 du collier 8. Il comprend un pavé de blocage 222, qui est disposé à l'extrémité opposée aux doigts 220. Ce pavé 222 est légèrement recourbé par rapport au reste du basculeur 22, selon une direction orientée vers l'intérieur de la chaussure C. Autrement dit, le pavé de blocage 222 forme une partie recourbée du basculeur 22. Par ailleurs, comme visible à la figure 9, le pavé 222 est adapté pour pénétrer à la fois dans l'ouverture 016 et dans l'ouverture 018 et comporte une surface de glissement latérale S222, qui glisse contre les parois latérales opposées à l'axe X4 des ouvertures 016 et 018 lors du passage en configuration bloquée. Le pavé comporte également une surface de glissement supérieure S222u et une surface de glissement inférieure S222d. Ces deux surfaces sont parallèles entre elles et toutes deux sensiblement perpendiculaire à la surface de glissement latérale S222.As visible at figure 9 , the rocker 22 extends transversely to the axis X1, on the rear portion 12 of the collar 8. It comprises a blocking block 222, which is disposed at the end opposite the fingers 220. This block 222 is slightly curved by relative to the rest of the rocker 22, in a direction directed towards the inside of the shoe C. In other words, the blocking block 222 forms a bent part of the rocker 22. Moreover, as visible in FIG. figure 9 , the block 222 is adapted to penetrate both the opening 016 and the opening 018 and has a lateral sliding surface S222, which slides against the side walls opposite to the axis X4 of the openings 016 and 018 during the passage in blocked configuration. The tile also has an upper sliding surface S222u and a lower sliding surface S222d. These two surfaces are parallel to each other and both substantially perpendicular to the lateral sliding surface S222.

Un levier 24 est monté pivotant sur le basculeur 22, autour d'un axe X5 parallèle à l'axe X4 et non confondu avec celui-ci. Plus précisément, un arbre d'articulation 28 traverse le basculeur 22 et est logé à ses deux extrémités dans des trous traversants latéraux du levier 24. Ce levier 24 est manipulé par l'utilisateur pour passer de la configuration débloquée à la configuration bloquée et inversement. En effet, le levier 24 comporte une surface S24 d'appui sur le basculeur 22. Cette surface S24 étant orientée vers le basculeur 22. Le mouvement F2 de rotation du levier 24 autour du pivot 28 se transforme en un mouvement F3 de translation du pavé de blocage 222 selon une direction globalement parallèle à l'axe X1. Le levier 24 forme donc une came de commande du mécanisme de blocage M2 et la surface S24 est une surface de came.A lever 24 is pivotally mounted on the rocker 22, about an axis X5 parallel to the axis X4 and not coincident with it. More specifically, a hinge shaft 28 passes through the rocker 22 and is housed at its two ends in lateral through holes of the lever 24. This lever 24 is manipulated by the user to go from the unlocked configuration to the locked configuration and vice versa . Indeed, the lever 24 has a bearing surface S24 on the rocker 22. This surface S24 is oriented towards the rocker 22. The movement F2 of rotation of the lever 24 around the pivot 28 is transformed into a movement F3 translation of the block blocking 222 in a direction generally parallel to the axis X1. The lever 24 thus forms a control cam of the locking mechanism M2 and the surface S24 is a cam surface.

En outre, un ressort spiral 26 est enroulé autour du pivot 23 d'articulation du basculeur 22 sur la base 18. Le ressort 26 tend à maintenir le basculeur 22 en configuration bloquée, c'est-à-dire engagée dans les ouvertures 016 et 018. Le ressort 26 forme donc un moyen de rappel élastique du basculeur 22 dans les ouvertures 016 et 018, qui s'oppose au retrait du basculeur 22 à l'extérieur de ces ouvertures.In addition, a spiral spring 26 is wound around the hinge pin 23 of the rocker 22 on the base 18. The spring 26 tends to keep the rocker 22 in locked configuration, that is to say engaged in the openings 016 and 018. The spring 26 thus forms an elastic return means of the rocker 22 in the openings 016 and 018, which opposes the removal of the rocker 22 outside these openings.

Pour passer de la configuration débloquée à la configuration bloquée, l'utilisateur doit pivoter le levier 24 vers sa gauche ou vers sa droite en fonction du pied considéré. En effet, pour une chaussure « gauche », comme représenté sur les figures, l'utilisateur doit basculer le levier 24 vers sa gauche pour verrouiller le mécanisme M2, alors que c'est l'inverse pour une chaussure « droite ». Le pivotement du levier 24 est représenté par une flèche F2 aux figures 7 et 9. Ce mouvement F2 de pivotement du levier 24 entraîne l'enfoncement du pavé 222 à travers l'ouverture 018 délimitée par la base 18, comme représenté par la flèche F3. Le pavé 222 fait alors saillie vers l'intérieur par rapport à la paroi interne du collier 8.To pass from the unlocked configuration to the locked configuration, the user must pivot the lever 24 to the left or to the right according to the foot considered. Indeed, for a shoe "left", as shown in the figures, the user must switch the lever 24 to its left to lock the mechanism M2, while it is the opposite for a shoe "right". The pivoting of the lever 24 is represented by an arrow F2 to figures 7 and 9 . This movement F2 pivoting lever 24 causes the depression of the block 222 through the opening 018 delimited by the base 18, as shown by the arrow F3. The pad 222 then projects inwards with respect to the inner wall of the collar 8.

Ensuite, il est nécessaire d'insérer le basculeur 22 dans l'ouverture 016 ménagée dans le spoiler 16. Pour cela, il convient de basculer le collier 8 vers l'avant, de manière à aligner l'ouverture 018 de la base 18 avec l'ouverture 016 du spoiler 16. Ce mouvement de basculement est représenté à la figure 3 par une flèche F1 et peut être aussi effectué avant de pivoter le levier 24. En pratique, le passage de la configuration de la figure 3 à la configuration de la figure 4 est réalisé en basculant le collier 8, et donc le spoiler 16, d'un angle A1 autour de l'axe X3, qui est environ égal à 14°. Dans la configuration de la figure 4, le collier 8 se trouve dans une position avancée, c'est-à-dire qu'il penche vers l'avant par rapport au bas de coque 2. Cette position avancée correspond à la position limite que l'on peut atteindre en basculant le collier 8 vers l'avant.Then, it is necessary to insert the rocker 22 in the opening 016 formed in the spoiler 16. For this, it is necessary to tilt the collar 8 forward, so as to align the opening 018 of the base 18 with the opening 016 of the spoiler 16. This tilting movement is shown in FIG. figure 3 by an arrow F1 and can also be performed before pivoting the lever 24. In practice, the passage of the configuration of the figure 3 at the configuration of the figure 4 is achieved by tilting the collar 8, and therefore the spoiler 16, an angle A1 around the axis X3, which is approximately equal to 14 °. In the configuration of the figure 4 , the collar 8 is in an advanced position, that is to say that it leans forward with respect to the shell bottom 2. This advanced position corresponds to the limit position that can be reached by tilting collar 8 forward.

Lorsque le collier 8 est en position avancée, le basculeur 22 peut pénétrer automatiquement dans l'ouverture 016 du spoiler 16. En effet, les ouvertures 016 et 018 présentent chacune une hauteur h16 et h18 qui sont légèrement supérieures à une hauteur h222 du pavé 222. Le pavé 222 peut donc pénétrer dans les ouvertures 016 et 018. Les hauteurs h16, h18 et h222 sont sensiblement égales et sont chacune mesurées parallèlement à l'axe X4. En pratique, la hauteur h222 est sensiblement égale, c'est-à-dire égale à 0,5% près, et inférieure à la plus petite des hauteurs h16 et h18.When the collar 8 is in the advanced position, the rocker 22 can automatically enter the opening 016 of the spoiler 16. In fact, the openings 016 and 018 each have a height h16 and h18 which are slightly greater than a height h222 of the block 222 The block 222 can thus enter the openings 016 and 018. The heights h16, h18 and h222 are substantially equal and are each measured parallel to the axis X4. In practice, the height h222 is substantially equal, that is to say equal to 0.5%, and less than the smallest height h16 and h18.

L'ouverture 018 et l'ouverture 016 forment donc conjointement un logement 022 de réception du basculeur 22. Le jeu J de déplacement vertical du pavé 222 à l'intérieur du logement 022 est quasiment nul et les axes d'articulation X2 et X3, respectivement du collier 8 et du spoiler 16 ne sont pas confondus, si bien que lorsque le basculeur 22 est inséré dans le logement 022, il n'y a pas de possibilité de glissement relatif entre le collier 8 et le spoiler 16. En d'autres termes, le collier 8 et le spoiler 16 sont bloqués chacun en rotation autour de leur axe d'articulation sur le bas de la coque 2 et le collier 8 est en position avancée, ou de blocage. Dans cette position, le collier 8 est immobile en rotation autour de l'axe X2 et exerce un appui ferme sur le mollet de l'utilisateur, ce qui est le but recherché par celui-ci lors de la pratique du ski. Ici, le jeu du pavé 222 à l'intérieur du logement 022 est choisi inférieur à 2 mm. Ce jeu correspond à la différence entre la hauteur h222 du pavé 222 et la plus petite des hauteurs h16 et h18.The opening 018 and the opening 016 thus together form a housing 022 for receiving the rocker 22. The clearance J of vertical displacement of the block 222 inside the housing 022 is almost zero and the hinge pins X2 and X3, respectively collar 8 and spoiler 16 are not confused, so that when the rocker 22 is inserted into the housing 022, there is no possibility of relative sliding between the collar 8 and the spoiler 16. In d ' other words, the collar 8 and the spoiler 16 are each locked in rotation around their axis of articulation on the bottom of the shell 2 and the collar 8 is in the advanced position, or blocking. In this position, the collar 8 is immobile in rotation about the axis X2 and exerts a firm support on the calf of the user, which is the goal sought by the latter during the practice of skiing. Here, the clearance of the block 222 inside the housing 022 is chosen less than 2 mm. This game corresponds to the difference between the height h222 of the block 222 and the smaller height h16 and h18.

Le basculeur pénètre dans le logement 022 par un mouvement de rotation selon un axe X4 qui est perpendiculaire à l'axe X3 de rotation du spoiler et à celui X2 du collier. C'est pourquoi, le jeu du pavé 222 dans l'ouverture 016 selon l'axe X4 peut être très faible et les parois de l'ouverture 016 qui sont en regard des surfaces de glissement supérieure S222u et inférieure S222d du pavé peuvent être sensiblement tangente à un cylindre centré sur l'axe X3 du spoiler. Par conséquent, en configuration bloquée, faible jeu dans une direction perpendiculaire à l'axe X3 et tangence des surfaces de glissement supérieure et inférieure du pavé garantissent une excellente résistance à la sortie intempestive du pavé du logement 022 et donc du déblocage de la rotation du collier.The rocker enters the housing 022 by a rotational movement along an axis X4 which is perpendicular to the axis X3 of rotation of the spoiler and that X2 of the collar. Therefore, the clearance of the block 222 in the opening 016 along the axis X4 can be very small and the walls of the opening 016 which are opposite the upper sliding surfaces S222u and lower S222d of the block can be substantially tangent to a cylinder centered on the X3 axis of the spoiler. Therefore, in the locked configuration, low backlash in a direction perpendicular to the axis X3 and tangency of the upper and lower sliding surfaces of the paver guarantee excellent resistance to the untimely exit of the housing block 022 and therefore the unlocking of the rotation of the housing. necklace.

Pour déverrouiller le mécanisme M2, c'est-à-dire pour passer dans la configuration débloquée, il convient à l'utilisateur de pivoter le levier 24 selon une direction opposée à la flèche F2. Lors de cette opération, l'utilisateur doit vaincre l'effort de rappel exercé par le ressort 26 sur le basculeur 22 et les frottements de la surface S222 contre les parois des ouvertures 016 et 018, pour dégager le basculeur 22 du logement 022 défini conjointement par le collier 8 et le spoiler 16. Lors du pivotement du levier 24, celui-ci bute contre la base 18 et entraine solidairement le basculeur 22 en rotation. Ainsi, le basculeur 22 sort du logement 022 et ne maintient plus le collier 8 au contact du spoiler 16. Le collier 8 est libre de basculer vers l'arrière autour de l'axe X2.To unlock the mechanism M2, that is to say to move into the unlocked configuration, it is convenient for the user to pivot the lever 24 in a direction opposite to the arrow F2. During this operation, the user must overcome the return force exerted by the spring 26 on the rocker 22 and the friction of the surface S222 against the walls of the openings 016 and 018, to clear the rocker 22 of the housing 022 jointly defined by the collar 8 and the spoiler 16. When pivoting the lever 24, it abuts against the base 18 and integrally drives the rocker 22 in rotation. Thus, the rocker 22 out of the housing 022 and no longer holds the collar 8 in contact with the spoiler 16. The collar 8 is free to swing backward about the axis X2.

Le fait que le basculeur 22 pivote autour d'un axe X4 perpendiculaire à l'axe de rotation du collier permet de limiter les contraintes mécaniques engendrées par l'utilisateur lors de la pratique du ski. Ainsi, le mécanisme de blocage M2 résiste mieux à la fatigue et risque moins d'être endommagé. En outre, le fait que le centre des orifices 20 soient alignés suivant un axe X6 parallèle à l'axe X4 engendre moins d'efforts résistants, générés par exemple lors d'un mouvement du mollet vers l'arrière. Ainsi, le risque de déchaussement des vis de fixation de la base 18 au collier 8 est réduit par rapport à celui occasionné avec l'orientation du basculeur du mécanisme de EP-A-2 070 433 .The fact that the rocker 22 pivots about an axis X4 perpendicular to the axis of rotation of the collar limits the mechanical stress generated by the user during the practice of skiing. Thus, the locking mechanism M2 is more resistant to fatigue and less likely to be damaged. In addition, the fact that the center of the orifices 20 are aligned along an axis X6 parallel to the axis X4 generates less resistant forces, generated for example during a movement of the calf rearward. Thus, the risk of loosening of the fastening screws from the base 18 to the collar 8 is reduced compared to that caused by the orientation of the rocker mechanism EP-A-2 070 433 .

Comme visible sur les figures, le mécanisme de blocage M2 est indépendant des moyens M1 de serrage du collier 8 autour du mollet de l'utilisateur. Il est donc possible de passer en position marche en agissant sur le levier 24 sans desserrer complètement le collier 8 du mollet de l'utilisateur. Cela est particulièrement avantageux lorsque l'utilisateur souhaite passer en position marche en gardant une certaine tenue de sa cheville, ce qui est pratique lorsque l'utilisateur souhaite déchausser ses skis pour marcher dans une zone escarpée. En outre, l'énergie à fournir pour bloquer le mécanisme M2 est faible puisqu'il est seulement nécessaire de pivoter le levier 24.As shown in the figures, the locking mechanism M2 is independent of the clamping means M1 clamp 8 around the calf of the user. It is therefore possible to switch to the on position by acting on the lever 24 without completely loosening the collar 8 of the calf of the user. This is particularly advantageous when the user wishes to move into position by keeping a certain hold of his ankle, which is convenient when the user wants to take off his skis to walk in an area steep. In addition, the energy to be supplied to lock the mechanism M2 is low since it is only necessary to pivot the lever 24.

En variante non représentée, le mécanisme M2 de blocage du collier 8 par rapport au bas de coque 2 peut être mis en oeuvre sur tout autre type de chaussure nécessitant un blocage de l'articulation de la cheville. Par exemple, le mécanisme M2 peut être adapté à des chaussures d'alpinisme, de randonnée, de snowboard, de patinage ou de roller.As a variant not shown, the locking mechanism M2 of the collar 8 relative to the shell bottom 2 may be implemented on any other type of shoe requiring a blockage of the ankle joint. For example, the M2 mechanism can be adapted to mountaineering, hiking, snowboarding, skating or rollerblading shoes.

En variante non représentée, la base 18 est fixée au collier 8 par des rivets.In variant not shown, the base 18 is fixed to the collar 8 by rivets.

Les caractéristiques techniques des variantes et modes de réalisation envisagés ci-dessus peuvent être combinées entre elles pour donner de nouveaux modes de réalisation de l'invention.The technical features of the variants and embodiments envisaged above can be combined with one another to give new embodiments of the invention.

Claims (10)

  1. Sports boot (C) comprising:
    - a lower shell portion (2) for holding the foot of the user, comprising a sole (4) which extends longitudinally along a first axis (X1),
    - a collar (8) for holding the calf of the user, which is articulated to the lower shell portion about a second axis (X2) that is essentially perpendicular to the first axis,
    - means (M1) for tightening the collar around the calf of the user, and
    - a blocking mechanism (M2) for preventing the collar from rotating backwards with respect to the lower shell portion, comprising a pivoting element (22) which is mounted so as to be able to pivot with respect to the collar (8) about a third axis (X4), said pivoting element being able to fit into a first opening (018) created in the collar, and thus prevent the collar from rotating backwards,
    - said blocking mechanism also comprising a lever (24) for actuating the pivoting element, which is independent of the means (M1) for tightening the collar (8), the lever (24) being mounted so as to be able to pivot on the pivoting element (22) about an axis (X5) parallel to the axis of rotation (X4) of the pivoting element,
    characterized in that said third axis (X4) is essentially perpendicular to said second axis (X2).
  2. Sports boot according to Claim 1, characterized in that the blocking mechanism (M2) cooperates with a back plate (16) which is articulated to the lower shell portion about a fourth axis (X3) that is essentially parallel to but not coincident with the second axis (X2), which is arranged to the rear inside the collar, and in which there is created a second opening (016); this second opening (016) delimiting, together with the first opening (018), a recess (022) in which the pivoting element can be fitted in order to prevent the collar from rotating backwards.
  3. Boot according to one of the preceding claims, characterized in that the blocking mechanism (M2) comprises a base (18) for attaching to the collar on which the pivoting element (22) is articulated.
  4. Boot according to Claim 3, characterized in that the base (18) delimits two orifices (20) for receiving means for attachment to the collar (8), and an opening (018) for receiving the pivoting element.
  5. Boot according to Claim 4, characterized in that an axis (X6) passing through the centre of the orifices (20) for receiving the attachment means is parallel to the axis of rotation (X4) of the pivoting element (22).
  6. Boot according to one of the preceding claims, characterized in that the pivoting element (22) comprises a blocking slab (222) which forms a curved part of the pivoting element and is designed to enter the recess (022) delimited jointly by the tab (16) and the collar (8).
  7. Boot according to the preceding claim, characterized in that the height (h222) of the slab (222) is essentially equal to and less than the smaller of the heights among the height (h16) of the opening (016) created in the back plate (16) and the height (h18) of the opening (018) created in the collar (8).
  8. Boot according to one of the preceding claims, characterized in that the blocking mechanism (M2) further comprises means (26) for elastically returning the pivoting element (22) to its recess (022), which means oppose the pivoting element leaving the recess.
  9. Boot according to Claim 8, characterized in that the elastic return means consist of a spring (26) which is wound around a pivot (23) articulating the pivoting element (22) to a base (18) for attachment to the collar (8).
  10. Boot according to one of the preceding claims, characterized in that, when the pivoting element (22) is pushed into the opening (018) of the collar (8), it is provided to be engaged automatically in the opening (016) of the back plate (16) by the collar (8) pivoting forward (F1).
EP15000086.7A 2014-01-24 2015-01-15 Sports shoe Active EP2898788B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1400156A FR3016775B1 (en) 2014-01-24 2014-01-24 SPORTS SHOE

Publications (2)

Publication Number Publication Date
EP2898788A1 EP2898788A1 (en) 2015-07-29
EP2898788B1 true EP2898788B1 (en) 2017-06-28

Family

ID=51167942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15000086.7A Active EP2898788B1 (en) 2014-01-24 2015-01-15 Sports shoe

Country Status (2)

Country Link
EP (1) EP2898788B1 (en)
FR (1) FR3016775B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700105722A1 (en) * 2017-09-21 2019-03-21 Tecnica Group Spa Ski boot, especially ski touring boot

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677585A5 (en) * 1988-09-09 1991-06-14 Lange Int Sa
ITPD920126A1 (en) * 1992-07-09 1994-01-10 Dolomite Spa SKI BOOT WITH SHIELD THAT CAN INCLIN LONGITUDINALLY WITH RESPECT TO THE HULL
FR2694681B1 (en) * 1992-08-11 1994-11-04 Salomon Sa Alpine ski boot.
IT1267325B1 (en) * 1994-12-05 1997-01-28 Dada Srl LOCKING / RELEASING DEVICE AND ADJUSTMENT OF SKI BOOTS PARTS.
FR2752684B1 (en) * 1996-09-04 1998-10-30 Salomon Sa SPORTS SHOE EQUIPPED WITH AN IMMOBILIZING DEVICE IN PIVOTING THE UPPER
CH692232A5 (en) * 1998-07-03 2002-04-15 Lange Int Sa ski boot.
FR2924904B1 (en) 2007-12-14 2010-01-01 Salomon Sa SPORT SHOE WITH LOCKING DEVICE
EP2116145B1 (en) 2008-05-08 2012-12-05 OBER ALP S.p.A. Ski boot, in particular for ski mountaineering

Also Published As

Publication number Publication date
FR3016775B1 (en) 2020-11-20
EP2898788A1 (en) 2015-07-29
FR3016775A1 (en) 2015-07-31

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