EP1765232A2 - Shoe heel cup and shoe equipped with one such heel cup - Google Patents

Shoe heel cup and shoe equipped with one such heel cup

Info

Publication number
EP1765232A2
EP1765232A2 EP05775344A EP05775344A EP1765232A2 EP 1765232 A2 EP1765232 A2 EP 1765232A2 EP 05775344 A EP05775344 A EP 05775344A EP 05775344 A EP05775344 A EP 05775344A EP 1765232 A2 EP1765232 A2 EP 1765232A2
Authority
EP
European Patent Office
Prior art keywords
shoe
foot
heel
lateral
calcaneum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05775344A
Other languages
German (de)
French (fr)
Other versions
EP1765232B1 (en
Inventor
Jean-Luc Rhenter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1765232A2 publication Critical patent/EP1765232A2/en
Application granted granted Critical
Publication of EP1765232B1 publication Critical patent/EP1765232B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/18—Joint supports, e.g. instep supports
    • A43B7/20—Ankle-joint supports or holders
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/08—Heel stiffeners; Toe stiffeners
    • A43B23/16—Heel stiffeners; Toe stiffeners made of impregnated fabrics, plastics or the like
    • A43B23/17—Heel stiffeners; Toe stiffeners made of impregnated fabrics, plastics or the like made of plastics
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/0036—Footwear characterised by the shape or the use characterised by a special shape or design
    • A43B3/0068—V-shaped

Definitions

  • SHOE HEEL SHOE AND SHOE PROVIDED WITH SUCH HEEL SHELL
  • the present invention relates to footwear, and more particularly, but not exclusively, multi-purpose shoes of a sporting nature, walking shoes, rehabilitation shoes.
  • Shoes whatever the application considered, must assume different functions, and in particular a function of mechanical protection of the sensitive parts of the foot against shocks, and a function of maintaining or supporting the joints of the foot and the ankle.
  • shoes To fulfill their impact protection function, shoes must in particular protect the heel and the area of attachment of the Achilles tendon.
  • the shoes To fulfill their function of maintaining or supporting the joints, the shoes must in particular limit the forces supported by the ankle and foot joints when these are in the vicinity of their maximum range of motion. But a shoe must simultaneously authorize the free functioning of the ankle and foot joints for the different movements of walking, running, jumping, changing direction.
  • the envelope of these shoes is flexible, so that the support and the compression carried out are flexible. Such shoes therefore do not effectively protect the ankle joint in the event of torsion during the practice of a sporting activity.
  • the ankle joint is, in fact, not sufficiently supported in the event of unexpected twisting, which leads to the distension of the subtalar ligaments, then, possibly, of the tibio-tarsal ligaments.
  • the compression of the ankle joints is ensured in a quasi-rigid manner. The protection is effective, but the comfort of use is reduced.
  • the plate surrounds the rear part of the foot from the base to above the calcaneum, and its lower edge is fixed to the sole of the shoe.
  • Two symmetrical lateral notches are oriented in horizontal directions, and located clearly above the lateral projections of the subtalar cone of the ankle.
  • the calcaneum is not surrounded laterally in its entirety. Comfort and protection remain insufficient.
  • PRESENTATION OF THE INVENTION The problem proposed by the present invention is to improve both the comfort and the safety of shoes, thus avoiding the disadvantages of traditional shoes, so as to support the natural joints of the foot and ankle without affect the comfort of use.
  • Another object of the invention is to provide a particularly simple and inexpensive structure to allow simultaneous improvements in protection and comfort.
  • the invention results from a more in-depth study of the natural physiological movements of the foot and ankle joints, and of the movements of the different parts of the foot relative to the shoe, during use movements such as walking, running, jumping and changes of direction. It thus appeared that traditional shoes are not sufficiently well adapted to the physiological movements of the joints of the foot and the ankle, and this is what explains either the lack of comfort, or the lack of protection, or even the risks of rapid degradation of the shoe.
  • the invention provides a heel shoe shell, comprising a plate made of an elastically deformable material of high suitable rigidity, and shaped to surround the rear part of the foot, covering at least the entire rear face.
  • the plate comprising, in its upper edge, two lateral notches, symmetrical to one another; the lateral notches are oriented so that, when the heel cup is in place in the shoe, the lateral notches are located substantially at the level of the lateral projections of the subtalar cone, and the plate laterally surrounds the calcaneum.
  • the heel cup thus formed is a particularly simple and inexpensive element, and its use in a shoe considerably improves the compromise obtained between the needs for protection of the heel and the joints and the comfort needs resulting from a great freedom of movement of the joints. .
  • the lateral notches have a V shape, flared towards the front and the top of the shoe. This favors the elastic deformations of the envelope zone between the edges of the lateral notches.
  • the opening of the lateral V-shaped notches can advantageously be greater than the angle of the subtalar cone, which allows effective release of the inversion and eversion movements of the ankle.
  • notches having more or less great depths are such that, when the heel cup is in place in the shoe, the bottom of the lateral notches is a little behind the subtalar joint.
  • the heel cup can advantageously be made from a plate of material limited by a slightly convex lower edge and of length between approximately 12 and 16 cm, limited by a more strongly convex upper edge and having the two lateral notches, the central plate area having a height of between 4 and 7 cm approximately.
  • the invention provides a shoe comprising:
  • a rod connected to the posterior part of the foot envelope, and adapted to envelop at least the postero-superior zone of the foot
  • a heel cup of more rigid material, having a lower edge fixed to the sole, and shaped to surround the rear part of the foot, covering at less the entire posterior surface of the foot from its base to above the calcaneum, and to surround the calcaneum laterally,
  • the invention can be implemented in a shoe comprising a relatively flexible foot envelope and an upper, the heel cup being made of an elastically deformable material but more rigid than the foot envelope and the upper.
  • the invention can be implemented in a shoe having an essentially rigid foot shell, an essentially rigid upper, and a part of the foot covering and / or more flexible upper in the area of the lateral notches of the heel cup, the heel cup itself being made of a more rigid material than the part of the foot casing and / or the upper located in the area of the side notches.
  • the foot casing and / or the rod constitute an elastic deformation zone with reduced stiffness.
  • the heel cup insertable into a shoe defines a posterior ascent and lateral fins which surround the posterior face and the lateral faces of the calcaneum, while leaving, by lateral notches, a preferential deformation zone located at the level and in the direction of the subtalar cone of the foot joint.
  • FIG. 1 is a front view of a material plate intended to constitute a heel shoe shell according to an embodiment of the present invention, in the deployed position;
  • - Figure 2 is a side view of the heel cup made according to the invention from the plate of Figure 1;
  • FIG. 3 is a rear view of the heel cup of Figure 2;
  • FIG. 4 is a perspective view of the heel cup of Figure 2;
  • FIG. 5 is a schematic external side view of the ankle and foot joint in a traditional shoe with rigid or flexible shell; and - Figure 6 is a schematic external lateral view of the ankle and foot joint in a shoe provided with a heel cup according to the present invention.
  • FIG. 5 is a schematic external side view of the ankle and foot joint in a traditional shoe with rigid or flexible shell; and - Figure 6 is a schematic external lateral view of the ankle and foot joint in a shoe provided with a heel cup according to the present invention.
  • FIG. 5 is a schematic external side view of the ankle and foot joint in a traditional shoe with rigid or flexible shell; and - Figure 6 is a schematic external lateral view of the ankle and foot joint in a shoe provided with a heel cup according to the present invention.
  • DESCRIPTION OF THE PREFERRED EMBODIMENTS We first consider Figure 5, in order to recall the main structural elements of a foot joint, and the main movements of this joint.
  • the foot 1 is shown inside a shoe consisting of a sole 2 and an
  • calcaneum 4 the talus 5, the cuboid 6, the scaphoid 7, and the cuneiforms 8 which are followed by the metatarsals and phalanges not shown.
  • the calcane-pedious block consisting of the calcaneum 4, the cuboid 6, the scaphoid 7 and the cuneiforms 8, forms the lower structure of the foot, which rests on the sole 2 of the shoe.
  • This calcaneo-pedal block is articulated under the leg, illustrated by the lower end of the tibia 9, by an articulation with two successive stages, namely a tibio-tarsal articulation 10 between the tibia 9 and the talus 5, and a subtalar joint 1 1 between the talus 5 and the calcaneum 4.
  • the tibio-tarsal joint 10 uses the movement of the foot in the sagittal plane, that is to say according to a rotation of transverse axis perpendicular to the plane in the figure, for example to raise or lower the anterior end of the foot.
  • the subtalar joint 1 1 allows the other movements of the ankle, namely the inversion and eversion movements.
  • inversion of the ankle we mean a movement which associates a partial or not combination of all the following movements in the three planes of space, namely:
  • a plantar flexion of an amplitude of approximately 10 ° directed along the arrow f1 and defined with respect to a normal plumb position of a human being situated on a horizontal plane.
  • the amplitudes indicated above correspond to average values, each amplitude being liable to vary by plus or minus 10 ° depending on the age of the individual and his own anatomical characteristics.
  • the mean axis 12a of the cone 12 passes through the apex S and by the median zone of the two ligament bundles 13 and 14 which link the talus 5 to the calcaneum 4. It can be seen that the mean axis 12a of the subtalar cone 12 makes with the horizontal plane P an angle ⁇ of between 20 ° and 50 °, and more generally between 30 ° and 45 °.
  • the subtalar cone 12 also has an opening angle ⁇ whose average value varies between 15 ° and 30 ° depending on the age of the individuals and their anatomical particularities.
  • the mean axis 12a of the subtalar cone 12 also makes, with respect to the sagittal plane, an angle of 10 ° to 30 ° inwards, that is to say towards the other foot.
  • the above considerations thus define a geometric and mechanical model that is substantially representative of the kinematics of the ankle joint on anatomical and physiological bases.
  • the shoe according to the invention, and the heel cup of the shoe according to the invention aim to promote the movements thus defined around the axes moving in the subtalar cone 12, while limiting these movements to avoid excessive efforts on the articular elements at the end of range of motion, and ensuring good protection of the fragile constituent parts of the foot.
  • FIG. 1 to 4 which illustrate such a heel shell structure 24 according to the invention.
  • the heel cup 24 is made from a plate 15 of an elastically deformable material having sufficient rigidity to constitute a shoe reinforcement.
  • the plate 15 of material is limited by a slightly convex lower edge 16 and by a more strongly convex upper edge 17 having two lateral notches 18 and 19 arranged symmetrically with respect to a median axis 20 generally perpendicular to the lower edge 16.
  • the plate 15 can have a length L of between 12 and 16 approximately cm, and a height H of central zone 21 of between 4 and 7 cm approximately.
  • the lateral notches 18 and 19 are oriented along respective axes 18a and 19a inclined at approximately 45 °.
  • the lateral notches have an opening angle 18b or 19b of approximately 30 °.
  • Their respective bottom 18c or 19c is at a distance d1 of about 2 cm from the middle M of the lower edge 16.
  • the lower edge 16 may advantageously comprise at least one conformation notch 16a in V.
  • FIG. 2 illustrates the heel cup 24 according to the invention produced from the plate 15 of FIG. 1, by folding the two fins 22 and 23 parallel to each other, and bringing the two lower edge segments closer together. 1 6 from one another to fill the shaping notch 16a, the central zone 21 being curved.
  • FIG. 3 the heel shell 24 of the Figure 2, on which there are the two fins 22 and 23, the posterior ascent 21, the side slits 18 and 19, the connecting zone 21b, and the shaping notch 16a whose edges are brought together or applied one against each other.
  • Figure 4 also illustrates, in perspective, the heel cup on which there are the same main parts identified by the same reference numerals.
  • FIG. 6 illustrates in external side view a foot engaged in a shoe according to an embodiment of the invention, including the heel cup 24 according to the invention.
  • the shoe comprises the sole 2, the heel cup 24, a foot cover 25, and a rod 26.
  • the sole 2 is structured in the usual way, chosen according to the uses envisaged.
  • the foot covering 25 is fixed to the sole 2, and is suitable for enveloping the plantar mass of the foot and of the calcane-pedious block.
  • the rod 26, connected to the rear part of the foot envelope 25, is adapted to wrap at least the postero-upper zone of the foot.
  • the heel cup 24 is arranged in the shoe to surround the rear part of the foot by covering at least the entire rear face of the foot from its base to above the calcaneum 4. Its lower edge 16 is fixed to the sole 2.
  • the heel shell 24 laterally surrounds the calcaneum 4.
  • FIG. 6 we can see the posterior ascent 21 and the aileron 22.
  • the notch 18 is oriented so as to substantially contain the lateral projection of the subtalar cone 1.
  • the posterior ascent 21 rises to a height greater than or equal to the height of the summit zone of the calcaneum 4.
  • the posterior ascent 21 rises to at a height about 2 to 4 cm above the top of the calcaneum.
  • the posterior ascent 21 widens upwards, which makes it possible to laterally wrap the low inserts of the Achilles heel, and thus to increase their protection against shocks.
  • the lateral fins such as the fin 22 develop forward at least as far as the anterior end zone of the calcaneum 4. Their height increases in front, which allows them to laterally wrap the zone front of the calcaneum 4 substantially over its entire height, as can be seen in FIG. 6.
  • the heel cup 24 can be made of an elastically flexible material but having a certain rigidity, for example based on carbon or of composite material of the type carbon-kevlar, or even based on certain high density plastics.
  • the area of the notches 18 and 19, occupied by the foot shell 25 and / or the rod 26, must have greater flexibility in order to allow deformations during movements of the subtalar joint.
  • the lateral notches 18 and 19 produce zones of preferential deformation of the shoe, oriented parallel to the subtalar cone 12.
  • connection zone 21b makes it possible to produce, between the posterior ascent 21 and the lateral fins 22 and 23, an elastic return torque which tends to bring the foot back into the sagittal plane of the tibia, thus relieving the sub-articulation astragalian 1 1.
  • the heel cup 24 thus formed opposes the rolling movements of the foot with respect to the shoe itself during eversion and inversion movements, by the fact that the calcaneum 4 is tightly enveloped by the heel cup 24.
  • the invention applies to low shoes as illustrated in Figure 6, that is to say with a low upper 26.
  • shoes with a higher upper 26 covering the tibio-tarsal joint 10. It applies just as well to shoes with a flexible shell 25 as to shoes with a plantar shell and rigid upper, from when a zone with greater flexibility is provided in line with the notches 18 and 19.
  • the heel cup 24 is a plate made of semi-rigid plastic, for example polyurethane, ABS, polyethylene, having a thickness of the order of 1 mm.
  • the heel cup 24, fixed to the sole 2 for example by gluing, is preferably housed inside the outer shell of the shoe and is covered internally by protective layers of felt or other material suitable for contact with the foot. 1.
  • the heel cup 24 can constitute an external element, visible on the shoe.
  • the sole 2 may have a conventional polyurethane structure reinforced with carbon fibers, the foot covering 25 and the upper 26 being able to be made from any deformable material, of the polymer type, or synthetic fabric, or leather, for example, whose elasticity can be varied depending on the type of use.
  • foot envelopes 25 and uppers 26 which are more flexible when we want to adapt the shoe to a use producing more stresses weak, and which are more rigid when we want to adapt the shoe to a use with higher loads. We can thus expect to very significantly reduce the risk of accident by twisting the joints of the foot and ankle during sports, or even when walking. At the same time, comfort is considerably improved.
  • the present invention is not limited to the embodiments which have been explicitly described, but it includes the various variants and generalizations thereof contained in the field of claims below.

Abstract

The invention relates to a heel cup (24) which can be inserted into a shoe in order to define a posterior upward projection (21) and lateral wings (22) which surround the posterior and lateral faces of the calcaneum (4) and which, by means of lateral notches (18), define a preferential deformation zone at, and in the direction of, the subtalar cone (12) of the tibiotarsal joint. Moreover, a sufficiently-rigid connecting zone (21b) connects the posterior upward projection (21) and the lateral wings (22), thereby providing the shoe with good stability while enabling inversion and eversion foot movements. In this way, comfort is increased considerably, while the risk of articular injuries is reduced since the subtalar articulation (11) is contained correctly upon reaching the limit thereof.

Description

COQUE TALONNIERE DE CHAUSSURE, ET CHAUSSURE MUNIE D'UNE TELLE COQUE TALONNIERE SHOE HEEL SHOE, AND SHOE PROVIDED WITH SUCH HEEL SHELL
DOMAINE TECHNIQUE DE L'INVENTION La présente invention concerne les articles chaussants, et plus particulièrement, mais non exclusivement, les chaussures multi-usages à caractère sportif, les chaussures de marche, les chaussures de rééducation. Les chaussures, quelle que soit l'application considérée, doivent assumer différentes fonctions, et notamment une fonction de protection mécanique des parties sensibles du pied contre les chocs, et une fonction de maintien ou de soutien des articulations du pied et de la cheville. Pour remplir leur fonction de protection contre les chocs, les chaussures doivent en particulier protéger le talon et la zone d'attache du tendon d'Achille. Pour remplir leur fonction de maintien ou soutien des articulations, les chaussures doivent notamment limiter les efforts supportés par les articulations de cheville et de pied lorsque celles-ci sont au voisinage de leur maximum d'amplitude de mouvement. Mais une chaussure doit, simultanément, autoriser le fonctionnement libre des articulations de cheville et de pied pour les différents mouvements de marche, de course, de saut, de changement de direction. On comprend qu'il existe une contradiction entre la nécessité de protéger et de soutenir les articulations de la cheville et du pied, d'une part, et la nécessité simultanée d'autoriser la liberté de mouvement des articulations du pied et de la cheville. En effet, la protection et le soutien des articulations sont obtenus en principe en prévoyant des éléments rigides incorporés dans la chaussure, tandis que la liberté de mouvement nécessite l'utilisation d'enveloppes souples pour constituer la chaussure. Ainsi, toute tentative de rigidification de la structure enveloppante de la chaussure améliore le soutien des articulations, au détriment du confort de l'utilisateur, c'est-à-dire au détriment de la liberté de mouvement des articulations. Inversement, l'amélioration du confort de l'utilisateur passe par une augmentation de la souplesse de la structure enveloppante de la chaussure, mais cette fois au détriment des fonctions de soutien des articulations et de protection du pied et de la cheville. C'est ainsi que l'on a déjà proposé des chaussures de sport consistant en une semelle sur laquelle se fixe une enveloppe souple recouvrant le pied et le talon. De telles chaussures assurent simplement la contention souple d'une fraction du bloc calcaneo-pédieux. L'emploi de telles chaussures est généralisé à de nombreuses activités sportives telles que le tennis, le football, l'athlétisme, le jogging. Ce type de chaussures, de par sa conception, n'est pas destiné à assurer une contention des articulations du pied, et, a fortiori, de la cheville. On a par ailleurs proposé des types de chaussures de sport dites montantes, c'est-à-dire comportant non seulement une coque pédieuse, mais également une tige ou enveloppe souple assurant la contention de l'ensemble des articulations du pied et de la cheville. Des chaussures réalisées selon ce principe sont utilisées dans de nombreux sports tels que le basket, le football, le tennis. L'enveloppe de ces chaussures est souple, de sorte que le soutien et la contention réalisés sont souples. De telles chaussures ne protègent donc pas efficacement l'articulation de la cheville en cas de torsion lors de la pratique d'une activité sportive. L'articulation de la cheville n'est, en effet, pas suffisamment soutenue en cas de torsion inopinée, ce qui conduit à la distension des ligaments sous-astragaliens, puis, éventuellement, des ligaments tibio-tarsiens. Dans le cas des chaussures de marche, et plus particulièrement celles destinées à la pratique de la haute montagne, la contention des articulations de la cheville est assurée de manière quasi-rigide. La protection est efficace, mais le confort d'utilisation est alors réduit. Pour améliorer le confort en présence de coques de chaussure à parties rigides assurant une bonne protection, on a également proposé de prévoir une zone d'articulation entre la tige de chaussure et la claque de chaussure, l'articulation visant à faciliter les mouvements des articulations naturelles du pied et de la cheville. Mais, si la conception de ces articulations convient assez bien pour autoriser le mouvement physiologique naturel de rotation d'axe transversal de l'articulation tibio-tarsienne, ces structures ne permettent pas à la fois de contenir efficacement et de libérer les mouvements physiologiques de l'articulation sous- astragalienne de la cheville. Il en résulte alors soit un manque de confort, soit un manque de protection de l'articulation, soit même un risque de vieillissement et de dégradation prématurée de la zone d'articulation de chaussure. Dans le domaine de l'athlétisme, on a aussi proposé, selon le document US 6,126,626 A, une chevillière adaptable par moulage sur une cheville, formant un ensemble qui est structurellement indépendant d'une chaussure mais que l'utilisateur peut néanmoins porter lorsqu'il engage le pied dans une chaussure. La chevillière est attachée à la cheville par des lacets, et n'est pas fixée à la chaussure. Elle est constituée à partir d'un panneau dont le bord supérieur est dépourvu d'encoches. Placée autour de la cheville, la chevillière présente des évidements latéraux situés au-dessous des projections latérales du cône sous- astragalien de la cheville. Cette structure vise à empêcher les mouvements physiologiques normaux d'éversion et d'inversion, ce qui réduit la liberté de mouvements et le confort. Le document US 3,807,062 A décrit une chaussure pour athlètes incluant une plaque relativement rigide dans la zone du talon. La plaque entoure la partie postérieure du pied depuis la base jusqu'au-dessus du calcaneum, et son bord inférieur est fixé à la semelle de chaussure. Deux encoches latérales symétriques sont orientées selon des directions horizontales, et situées nettement au-dessus des projections latérales du cône sous-astragalien de la cheville. Le calcaneum n'est pas entouré latéralement dans sa totalité. Le confort et la protection restent insuffisants. EXPOSE DE L'INVENTION Le problème proposé par la présente invention est d'améliorer à la fois le confort et la sécurité des chaussures, en évitant ainsi les inconvénients des chaussures traditionnelles, de façon à soutenir les articulations naturelles du pied et de la cheville sans nuire au confort d'utilisation. Un autre objet de l'invention est de proposer une structure particulièrement simple et peu onéreuse pour permettre les améliorations simultanées de protection et de confort. L'invention résulte pour cela d'une étude plus approfondie des mouvements physiologiques naturels des articulations du pied et de la cheville, et des déplacements des différentes parties du pied par rapport à la chaussure, lors des mouvements d'utilisation tels que la marche, la course, le saut et les changements de direction. Il est ainsi apparu que les chaussures traditionnelles ne sont pas suffisamment bien adaptées aux mouvements physiologiques des articulations du pied et de la cheville, et c'est ce qui explique soit le manque de confort, soit le manque de protection, soit même les risques de dégradations rapides de la chaussure. Pour atteindre ces buts ainsi que d'autres, l'invention propose une coque talonnière de chaussure, comprenant une plaque en un matériau élastiquement déformable à grande rigidité appropriée, et conformée pour entourer la partie postérieure du pied en recouvrant au moins toute la face postérieure du pied depuis sa base jusqu'au-dessus du calcaneum, et se développant vers l'avant, avec son bord inférieur destiné à être fixé à la semelle de chaussure, la plaque comprenant, dans son bord supérieur, deux encoches latérales, symétriques l'une de l'autre ; les encoches latérales sont orientées de façon que, lorsque la coque talonnière est en place dans la chaussure, les encoches latérales se situent sensiblement au niveau des projections latérales du cône sous-astragalien, et la plaque entoure latéralement le calcaneum. La coque talonnière ainsi constituée est un élément particulièrement simple et peu onéreux, et son utilisation dans une chaussure améliore considérablement le compromis obtenu entre les nécessités de protection du talon et des articulations et les nécessités de confort résultant d'une grande liberté de mouvement des articulations. De préférence, les encoches latérales ont une forme en V, évasée vers l'avant et le haut de la chaussure. On favorise ainsi les déformations élastiques de la zone d'enveloppe entre les bords des encoches latérales. L'ouverture des encoches latérales en V peut avantageusement être supérieure à l'angle du cône sous-astragalien, ce qui permet une libération effective des mouvements d'inversion et d'éversion de la cheville. On pourrait imaginer des encoches ayant des profondeurs plus ou moins grandes. De préférence, la profondeur des encoches latérales est telle que, lorsque la coque talonnière est en place dans la chaussure, le fond des encoches latérales est peu en arrière de l'articulation sous-astragalienne. On réalise ainsi un bon compromis entre le confort obtenu par la présence des encoches latérales, et la protection obtenue par la partie postérieure de coque dépourvue d'encoches et qui assure la reprise des efforts mécaniques. Pour une taille 42 de chaussure, la coque talonnière peut avantageusement être réalisée à partir d'une plaque de matériau limitée par un bord inférieur légèrement convexe et de longueur comprise entre 12 et 16 cm environ, limitée par un bord supérieur plus fortement convexe et ayant les deux encoches latérales, la zone centrale de plaque ayant une hauteur comprise entre 4 et 7 cm environ. Selon un autre aspect, l'invention propose une chaussure comportant :TECHNICAL FIELD OF THE INVENTION The present invention relates to footwear, and more particularly, but not exclusively, multi-purpose shoes of a sporting nature, walking shoes, rehabilitation shoes. Shoes, whatever the application considered, must assume different functions, and in particular a function of mechanical protection of the sensitive parts of the foot against shocks, and a function of maintaining or supporting the joints of the foot and the ankle. To fulfill their impact protection function, shoes must in particular protect the heel and the area of attachment of the Achilles tendon. To fulfill their function of maintaining or supporting the joints, the shoes must in particular limit the forces supported by the ankle and foot joints when these are in the vicinity of their maximum range of motion. But a shoe must simultaneously authorize the free functioning of the ankle and foot joints for the different movements of walking, running, jumping, changing direction. We understand that there is a contradiction between the need to protect and support the ankle and foot joints, on the one hand, and the simultaneous need to allow freedom of movement of the foot and ankle joints. Indeed, the protection and support of the joints are obtained in principle by providing rigid elements incorporated in the shoe, while freedom of movement requires the use of flexible envelopes to constitute the shoe. Thus, any attempt to stiffen the enveloping structure of the shoe improves the support of the joints, to the detriment of the comfort of the user, that is to say to the detriment of the freedom of movement of the joints. Conversely, improving the comfort of the user involves increasing the flexibility of the enveloping structure of the shoe, but this time at the expense of the functions of supporting the joints and protecting the foot and ankle. This is how sports shoes have already been proposed, consisting of a sole on which a flexible envelope is fixed covering the foot and the heel. Such shoes simply provide flexible restraint for a fraction of the calcaneo-pedal block. The use of such shoes is generalized to many sporting activities such as tennis, football, athletics, jogging. This type of shoe, by design, is not intended to ensure compression of the joints of the foot, and, a fortiori, of the ankle. We have also proposed types of sports shoes said to be high, that is to say comprising not only a shell, but also a flexible rod or envelope ensuring the containment of all the joints of the foot and ankle. . Shoes made according to this principle are used in many sports such as basketball, football, tennis. The envelope of these shoes is flexible, so that the support and the compression carried out are flexible. Such shoes therefore do not effectively protect the ankle joint in the event of torsion during the practice of a sporting activity. The ankle joint is, in fact, not sufficiently supported in the event of unexpected twisting, which leads to the distension of the subtalar ligaments, then, possibly, of the tibio-tarsal ligaments. In the case of walking shoes, and more particularly those intended for the practice of high mountains, the compression of the ankle joints is ensured in a quasi-rigid manner. The protection is effective, but the comfort of use is reduced. To improve comfort in the presence of shoe shells with rigid parts ensuring good protection, it has also been proposed to provide an articulation zone between the shoe upper and the shoe flap, the articulation aiming to facilitate the movements of the joints. feet and ankles. But, if the design of these joints is good enough to allow the natural physiological movement of rotation of the transverse axis of the tibio-tarsal joint, these structures do not both effectively contain and release the physiological movements of the subtalar joint of the ankle. This then results either in a lack of comfort, or a lack of protection of the joint, or even a risk of aging and premature degradation of the shoe joint area. In the field of athletics, there has also been proposed, according to document US 6,126,626 A, an ankle adaptable by molding on an ankle, forming an assembly which is structurally independent of a shoe but which the user can nevertheless wear when he puts his foot in a shoe. The ankle is attached to the ankle by laces, and is not attached to the shoe. It is made from a panel whose upper edge is devoid of notches. Placed around the ankle, the ankle has lateral recesses located below the lateral projections of the subtalar cone of the ankle. This structure aims to prevent normal physiological movements from eversion and inversion, which reduces freedom of movement and comfort. Document US 3,807,062 A describes a shoe for athletes including a relatively rigid plate in the heel area. The plate surrounds the rear part of the foot from the base to above the calcaneum, and its lower edge is fixed to the sole of the shoe. Two symmetrical lateral notches are oriented in horizontal directions, and located clearly above the lateral projections of the subtalar cone of the ankle. The calcaneum is not surrounded laterally in its entirety. Comfort and protection remain insufficient. PRESENTATION OF THE INVENTION The problem proposed by the present invention is to improve both the comfort and the safety of shoes, thus avoiding the disadvantages of traditional shoes, so as to support the natural joints of the foot and ankle without affect the comfort of use. Another object of the invention is to provide a particularly simple and inexpensive structure to allow simultaneous improvements in protection and comfort. For this, the invention results from a more in-depth study of the natural physiological movements of the foot and ankle joints, and of the movements of the different parts of the foot relative to the shoe, during use movements such as walking, running, jumping and changes of direction. It thus appeared that traditional shoes are not sufficiently well adapted to the physiological movements of the joints of the foot and the ankle, and this is what explains either the lack of comfort, or the lack of protection, or even the risks of rapid degradation of the shoe. To achieve these and other aims, the invention provides a heel shoe shell, comprising a plate made of an elastically deformable material of high suitable rigidity, and shaped to surround the rear part of the foot, covering at least the entire rear face. from the foot from its base to above the calcaneum, and developing forward, with its lower edge intended to be fixed to the shoe sole, the plate comprising, in its upper edge, two lateral notches, symmetrical to one another; the lateral notches are oriented so that, when the heel cup is in place in the shoe, the lateral notches are located substantially at the level of the lateral projections of the subtalar cone, and the plate laterally surrounds the calcaneum. The heel cup thus formed is a particularly simple and inexpensive element, and its use in a shoe considerably improves the compromise obtained between the needs for protection of the heel and the joints and the comfort needs resulting from a great freedom of movement of the joints. . Preferably, the lateral notches have a V shape, flared towards the front and the top of the shoe. This favors the elastic deformations of the envelope zone between the edges of the lateral notches. The opening of the lateral V-shaped notches can advantageously be greater than the angle of the subtalar cone, which allows effective release of the inversion and eversion movements of the ankle. One could imagine notches having more or less great depths. Preferably, the depth of the lateral notches is such that, when the heel cup is in place in the shoe, the bottom of the lateral notches is a little behind the subtalar joint. A good compromise is thus achieved between the comfort obtained by the presence of the lateral notches, and the protection obtained by the rear part of the shell devoid of notches and which ensures the resumption of the mechanical forces. For a shoe size 42, the heel cup can advantageously be made from a plate of material limited by a slightly convex lower edge and of length between approximately 12 and 16 cm, limited by a more strongly convex upper edge and having the two lateral notches, the central plate area having a height of between 4 and 7 cm approximately. According to another aspect, the invention provides a shoe comprising:
- une semelle,- a sole,
- une enveloppe de pied, fixée à la semelle et adaptée pour envelopper la masse plantaire du pied et du bloc calcaneo-pédieux,- a foot envelope, fixed to the sole and adapted to wrap the plantar mass of the foot and the calcaneo-pedious block,
- une tige, reliée à la partie postérieure de l'enveloppe de pied, et adaptée pour envelopper au moins la zone postéro-supérieure du pied,- a rod, connected to the posterior part of the foot envelope, and adapted to envelop at least the postero-superior zone of the foot,
- une coque talonnière, en matériau plus rigide, ayant un bord inférieur fixé à la semelle, et conformée pour entourer la partie postérieure du pied en recouvrant au moins toute la face postérieure du pied depuis sa base jusqu'au-dessus du calcaneum, et pour entourer latéralement le calcaneum,- a heel cup, of more rigid material, having a lower edge fixed to the sole, and shaped to surround the rear part of the foot, covering at less the entire posterior surface of the foot from its base to above the calcaneum, and to surround the calcaneum laterally,
- la coque talonnière étant telle que définie ci-dessus, réalisant un renfort monobloc constitué d'une remontée postérieure et de deux ailerons latéraux. Selon une première application, l'invention peut être mise en oeuvre dans une chaussure comportant une enveloppe de pied et une tige relativement souples, la coque talonnière étant réalisée en un matériau élastiquement déformable mais plus rigide que l'enveloppe de pied et la tige. Selon une deuxième application, l'invention peut être mise en oeuvre dans une chaussure ayant une coque de pied essentiellement rigide, une tige essentiellement rigide, et une partie d'enveloppe de pied et/ou de tige plus souple dans la zone des encoches latérales de la coque talonnière, la coque talonnière étant elle-même réalisée en un matériau plus rigide que la partie d'enveloppe de pied et/ou de tige située dans la zone des encoches latérales. On peut avantageusement prévoir que, au moins dans la zone des encoches latérales, l'enveloppe de pied et/ou la tige constituent une zone de déformation élastique à raideur réduite. Dans tous les modes de réalisation, la coque talonnière insérable dans une chaussure définit une remontée postérieure et des ailerons latéraux qui enveloppent la face postérieure et les faces latérales du calcaneum, tout en laissant, par des encoches latérales, une zone de déformation préférentielle située au niveau et dans la direction du cône sous-astragalien de l'articulation du pied. DESCRIPTION SOMMAIRE DES DESSINS D'autres objets, caractéristiques et avantages de la présente invention ressortiront de la description suivante de modes de réalisation particuliers, faite en relation avec les figures jointes, parmi lesquelles :- the heel cup being as defined above, providing a one-piece reinforcement consisting of a rear ascent and two lateral fins. According to a first application, the invention can be implemented in a shoe comprising a relatively flexible foot envelope and an upper, the heel cup being made of an elastically deformable material but more rigid than the foot envelope and the upper. According to a second application, the invention can be implemented in a shoe having an essentially rigid foot shell, an essentially rigid upper, and a part of the foot covering and / or more flexible upper in the area of the lateral notches of the heel cup, the heel cup itself being made of a more rigid material than the part of the foot casing and / or the upper located in the area of the side notches. It is advantageously possible to provide that, at least in the region of the lateral notches, the foot casing and / or the rod constitute an elastic deformation zone with reduced stiffness. In all the embodiments, the heel cup insertable into a shoe defines a posterior ascent and lateral fins which surround the posterior face and the lateral faces of the calcaneum, while leaving, by lateral notches, a preferential deformation zone located at the level and in the direction of the subtalar cone of the foot joint. SUMMARY DESCRIPTION OF THE DRAWINGS Other objects, characteristics and advantages of the present invention will emerge from the following description of particular embodiments, made in relation to the attached figures, among which:
- la figure 1 est une vue de face d'une plaque de matériau destinée à constituer une coque talonnière de chaussure selon un mode de réalisation de la présente invention, en position déployée ; - la figure 2 est une vue de côté de la coque talonnière réalisée selon l'invention à partir de la plaque de la figure 1 ;- Figure 1 is a front view of a material plate intended to constitute a heel shoe shell according to an embodiment of the present invention, in the deployed position; - Figure 2 is a side view of the heel cup made according to the invention from the plate of Figure 1;
- la figure 3 est une vue d'arrière de la coque talonnière de la figure 2 ;- Figure 3 is a rear view of the heel cup of Figure 2;
- la figure 4 est une vue en perspective de la coque talonnière de la figure 2 ;- Figure 4 is a perspective view of the heel cup of Figure 2;
- la figure 5 est une vue schématique latérale externe de l'articulation de la cheville et du pied dans une chaussure traditionnelle à coque rigide ou souple ; et - la figure 6 est une vue schématique latérale externe de l'articulation de la cheville et du pied dans une chaussure munie d'une coque talonnière selon la présente invention. DESCRIPTION DES MODES DE REALISATION PREFERES On considère tout d'abord la figure 5, afin de rappeler les principaux éléments structurels d'une articulation de pied, et les principaux mouvements de cette articulation. Le pied 1 est représenté à l'intérieur d'une chaussure constituée d'une semelle 2 et d'une enveloppe extérieure 3 représentée en pointillés. La chaussure repose par sa semelle 2 sur un plan horizontal P, et se développe longitudinalement le long d'un plan vertical perpendiculaire au plan P, ou plan de la figure. Dans le pied 1 , illustré à l'intérieur de la chaussure, on distingue le calcaneum 4, l'astragale 5, le cuboïde 6, le scaphoïde 7, et les cunéiformes 8 qui sont suivis des métatarsiens et des phalanges non représentés. Le bloc calcaneo-pédieux, constitué du calcaneum 4, du cuboïde 6, du scaphoïde 7 et des cunéiformes 8, forme la structure inférieure du pied, qui s'appuie sur la semelle 2 de chaussure. Ce bloc calcaneo-pédieux s'articule sous la jambe, illustrée par l'extrémité inférieure du tibia 9, par une articulation à deux étages successifs, à savoir une articulation tibio-tarsienne 10 entre le tibia 9 et l'astragale 5, et une articulation sous-astragalienne 1 1 entre l'astragale 5 et le calcaneum 4. L'articulation tibio-tarsienne 10 utilise le mouvement du pied dans le plan sagittal, c'est-à-dire selon une rotation d'axe transversal perpendiculaire au plan de la figure, par exemple pour monter ou descendre le bout antérieur du pied. L'articulation sous-astragalienne 1 1 permet les autres mouvements de la cheville, à savoir les mouvements d'inversion et d'éversion. Par inversion de la cheville, on entend un mouvement qui associe une combinaison partielle ou non de l'ensemble des mouvements suivants dans les trois plans de l'espace, à savoir :- Figure 5 is a schematic external side view of the ankle and foot joint in a traditional shoe with rigid or flexible shell; and - Figure 6 is a schematic external lateral view of the ankle and foot joint in a shoe provided with a heel cup according to the present invention. DESCRIPTION OF THE PREFERRED EMBODIMENTS We first consider Figure 5, in order to recall the main structural elements of a foot joint, and the main movements of this joint. The foot 1 is shown inside a shoe consisting of a sole 2 and an outer envelope 3 shown in dotted lines. The shoe rests by its sole 2 on a horizontal plane P, and develops longitudinally along a vertical plane perpendicular to the plane P, or plane of the figure. In foot 1, illustrated inside the shoe, there are the calcaneum 4, the talus 5, the cuboid 6, the scaphoid 7, and the cuneiforms 8 which are followed by the metatarsals and phalanges not shown. The calcane-pedious block, consisting of the calcaneum 4, the cuboid 6, the scaphoid 7 and the cuneiforms 8, forms the lower structure of the foot, which rests on the sole 2 of the shoe. This calcaneo-pedal block is articulated under the leg, illustrated by the lower end of the tibia 9, by an articulation with two successive stages, namely a tibio-tarsal articulation 10 between the tibia 9 and the talus 5, and a subtalar joint 1 1 between the talus 5 and the calcaneum 4. The tibio-tarsal joint 10 uses the movement of the foot in the sagittal plane, that is to say according to a rotation of transverse axis perpendicular to the plane in the figure, for example to raise or lower the anterior end of the foot. The subtalar joint 1 1 allows the other movements of the ankle, namely the inversion and eversion movements. By inversion of the ankle, we mean a movement which associates a partial or not combination of all the following movements in the three planes of space, namely:
- dans le plan horizontal P, une rotation dite interne, c'est-à-dire dirigée vers la face intérieure du pied opposé ; cette rotation interne présente une amplitude maximum de rotation de 30° par rapport à une position d'aplomb normale du pied dans laquelle l'axe longitudinal du pied est sensiblement parallèle au plan sagittal de symétrie de l'être humain ; - dans le plan frontal, correspondant à un plan F vertical perpendiculaire au plan P, un roulis interne d'une amplitude de 25° environ défini par rapport aux deux positions extrêmes basse et haute d'amplitude du roulis interne,- In the horizontal plane P, a so-called internal rotation, that is to say directed towards the inner face of the opposite foot; this internal rotation has a maximum amplitude of rotation of 30 ° relative to a normal plumb position of the foot in which the longitudinal axis of the foot is substantially parallel to the sagittal plane of symmetry of the human being; - in the frontal plane, corresponding to a vertical plane F perpendicular to the plane P, an internal roll with an amplitude of approximately 25 ° defined with respect to the two extreme low and high positions of amplitude of the internal roll,
- dans le plan sagittal, ou plan de la figure sur la figure 5, une flexion plantaire, d'une amplitude de 10° environ dirigée selon la flèche f1 et définie par rapport à une position normale d'aplomb d'un être humain situé sur un plan horizontal. Les amplitudes indiquées ci-dessus correspondent à des valeurs moyennes, chaque amplitude étant susceptible de varier de plus ou moins 10° selon l'âge de l'individu et ses caractéristiques anatomiques propres. Par eversion de la cheville, on entend un mouvement qui associe dans les trois plans de l'espace, selon une direction générale s'écartant ou s'éloignant du plan de symétrie sagittal de l'individu :- in the sagittal plane, or plane of the figure in FIG. 5, a plantar flexion, of an amplitude of approximately 10 ° directed along the arrow f1 and defined with respect to a normal plumb position of a human being situated on a horizontal plane. The amplitudes indicated above correspond to average values, each amplitude being liable to vary by plus or minus 10 ° depending on the age of the individual and his own anatomical characteristics. By eversion of the ankle, we mean a movement which associates in the three planes of space, in a general direction deviating or moving away from the sagittal plane of symmetry of the individual:
- une rotation externe de 30° au maximum dans le plan horizontal,- an external rotation of 30 ° maximum in the horizontal plane,
- dans le plan frontal F, un roulis externe d'environ 20°, - dans le plan sagittal, une flexion dorsale, dirigée selon la flèche f2 et d'une amplitude de 10° environ. L'analyse des mouvements de l'articulation sous-astragalienne du pied et de la cheville a montré que l'ensemble de ces mouvements d'inversion et d'éversion dans les trois plans de l'espace possèdent des axes instantanés de déplacement qui eux-mêmes se déplacent dans l'espace dans une enveloppe géométrique assimilable à un cône de révolution 12, que l'on dénomme cône sous- astragalien. Le sommet S du cône 12 se situe à une distance d de quelques centimètres en arrière du calcaneum 4, et environ au tiers H1 de la hauteur H du bord postérieur du calcaneum 4. L'axe moyen 12a du cône 12 passe par le sommet S et par la zone médiane des deux faisceaux ligamentaires 13 et 14 qui lient l'astragale 5 au calcaneum 4. On constate que l'axe moyen 12a du cône sous- astragalien 12 fait avec le plan horizontal P un angle α compris entre 20° et 50°, et plus généralement compris entre 30° et 45°. Le cône sous-astragalien 12 présente en outre un angle d'ouverture β dont la valeur moyenne varie entre 15° et 30° selon l'âge des individus et leurs particularités anatomiques. Si l'on considère une vue en plan du pied, c'est-à-dire vue de dessus, l'axe moyen 12a du cône sous-astragalien 12 fait également, par rapport au plan sagittal, un angle de 10° à 30° vers l'intérieur, c'est-à-dire vers l'autre pied. Les considérations ci-dessus définissent ainsi un modèle géométrique et mécanique sensiblement représentatif de la cinématique de l'articulation de la cheville sur des bases anatomiques et physiologiques. La chaussure selon l'invention, et la coque talonnière de chaussure selon l'invention, visent à favoriser les mouvements ainsi définis autour des axes se déplaçant dans le cône sous-astragalien 12, tout en limitant ces mouvements pour éviter les efforts excessifs sur les éléments articulaires en fin d'amplitude de mouvement, et en assurant une bonne protection des parties constitutives fragiles du pied. Selon l'invention, pour assurer à la fois une liberté satisfaisante de ces mouvements, nécessaire à l'obtention d'un confort suffisant, et pour protéger efficacement le pied contre les chocs et les excès d'amplitude de mouvement, il est nécessaire d'envelopper l'arrière du pied dans une coque talonnière à encoches latérales positionnées en correspondance du cône sous-astragalien 12. On considère les figures 1 à 4, qui illustrent une telle structure de coque talonnière 24 selon l'invention. La coque talonnière 24 est réalisée à partir d'une plaque 15 en un matériau élastiquement déformable présentant une rigidité suffisante pour constituer un renfort de chaussure. La plaque 15 de matériau est limitée par un bord inférieur 16 légèrement convexe et par un bord supérieur 17 plus fortement convexe ayant deux encoches latérales 18 et 19 disposées symétriquement par rapport à un axe médian 20 généralement perpendiculaire au bord inférieur 16. On distingue ainsi une zone centrale 21 destinée à constituer une remontée postérieure dans une chaussure, et deux ailerons latéraux 22 et 23. Dans les applications pratiques pour les chaussures multi-usages, pour une taille 42, la plaque 15 peut avoir une longueur L comprise entre 12 et 16 cm environ, et une hauteur H de zone centrale 21 comprise entre 4 et 7 cm environ. Les encoches latérales 18 et 19 sont orientées selon des axes respectifs 18a et 19a inclinés à environ 45°. Les encoches latérales ont un angle d'ouverture 1 8b ou 19b de 30° environ. Leur fond respectif 1 8c ou 19c est à une distance d1 d'environ 2 cm du milieu M du bord inférieur 16. Le bord inférieur 16 peut avantageusement comprendre au moins une encoche de conformation 16a en V. L'encoche de conformation 16a permet de rapprocher l'un de l'autre les deux segments constituant le bord inférieur 16, pour donner à la plaque 15 une concavité dans le sens vertical pour envelopper l'arrière du pied. La figure 2 illustre la coque talonnière 24 selon l'invention réalisée à partir de la plaque 15 de la figure 1 , en rabattant les deux ailerons 22 et 23 parallèlement l'un à l'autre, et en rapprochant les deux segments de bord inférieur 1 6 l'un de l'autre pour combler l'encoche de conformation 16a, la zone centrale 21 étant incurvée. On retrouve ainsi l'aileron 22, la zone centrale 21 formant une remontée postérieure, et l'encoche latérale 18 dont le fond 18c se trouve en avant du bord postérieur 21 a dont il est séparé par une zone de liaison 21 b de largeur d2 réduite mais encore suffisante pour présenter des propriétés mécaniques élastiques et à raideur suffisante, contrôlant les mouvements relatifs entre la remontée postérieure 21 et les ailerons latéraux 22 et 23. Sur la figure 3, on retrouve en vue d'arrière la coque talonnière 24 de la figure 2, sur laquelle on distingue les deux ailerons 22 et 23, la remontée postérieure 21 , les fentes latérales 18 et 19, la zone de liaison 21 b, et l'encoche de conformation 16a dont les bords sont rapprochés ou appliqués l'un contre l'autre. La figure 4 illustre également, en perspective, la coque talonnière sur laquelle on distingue les mêmes parties principales repérées par les mêmes références numériques. On considère maintenant la figure 6, qui illustre en vue de côté externe un pied engagé dans une chaussure selon un mode de réalisation de l'invention, incluant la coque talonnière 24 selon l'invention. On retrouve les éléments constitutifs du squelette de pied précédemment décrit en relation avec la figure 5. Sur la figure 6, l'invention est appliquée à une chaussure multi-usages à tige relativement basse. La chaussure comprend la semelle 2, la coque talonnière 24, une enveloppe de pied 25, et une tige 26. La semelle 2 est structurée de manière habituelle, choisie en fonction des utilisations envisagées. L'enveloppe de pied 25 est fixée à la semelle 2, et est adaptée pour envelopper la masse plantaire du pied et du bloc calcaneo-pédieux. La tige 26, reliée à la partie postérieure de l'enveloppe de pied 25, est adaptée pour envelopper au moins la zone postéro-supérieure du pied. La coque talonnière 24 est disposée dans la chaussure pour entourer la partie postérieure du pied en recouvrant au moins toute la face postérieure du pied depuis sa base jusqu'au-dessus du calcaneum 4. Son bord inférieur 16 est fixé à la semelle 2. La coque talonnière 24 entoure latéralement le calcaneum 4. On distingue, sur la figure 6, la remontée postérieure 21 et l'aileron 22. L'encoche 18 est orientée de façon à contenir sensiblement la projection latérale du cône sous-astragalien 1 . Comme on le voit sur la figure 6, la remontée postérieure 21 s'élève jusqu'à une hauteur supérieure ou égale à la hauteur de la zone sommitale du calcaneum 4. De préférence, comme illustré, la remontée postérieure 21 s'élève jusqu'à une hauteur située 2 à 4 cm environ au-dessus de la zone sommitale du calcaneum. Une telle disposition permet de protéger, contre les chocs, la zone des insertions basses du tendon d'Achille. Cela favorise également la reprise des efforts de rotation des éléments articulaires de la cheville, en répartissant sur une plus grande hauteur les forces d'appui de la partie postérieure du pied sur la chaussure. Comme on le voit sur les figures, la remontée postérieure 21 s'élargit vers le haut, ce qui permet d'envelopper latéralement les insertions basses du talon d'Achille, et d'augmenter ainsi leur protection contre les chocs. Les ailerons latéraux tels que l'aileron 22 se développent vers l'avant au moins jusqu'à la zone d'extrémité antérieure du calcaneum 4. Leur hauteur va en croissant vers l'avant, ce qui leur permet d'envelopper latéralement la zone antérieure du calcaneum 4 sensiblement sur toute sa hauteur, comme on le voit bien sur la figure 6. La coque talonnière 24 peut être réalisée en un matériau élastiquement flexible mais présentant une certaine rigidité, par exemple à base de carbone ou de matériau composite de type carbone-kevlar, ou même à base de certaines matières plastiques à haute densité. Par contraste, la zone des encoches 18 et 19, occupée par l'enveloppe de pied 25 et/ou la tige 26, doit avoir une plus grande souplesse afin d'autoriser les déformations lors des mouvements de l'articulation sous-astragalienne. Lors des mouvements de l'articulation, en particulier les mouvements d'éversion et d'inversion, les encoches latérales 18 et 19 réalisent des zones de déformation préférentielle de la chaussure, orientées parallèlement au cône sous- astragalien 12. Néanmoins, le maintien de la zone de liaison 21 b relativement rigide permet de produire, entre la remontée postérieure 21 et les ailerons latéraux 22 et 23, un couple de rappel élastique qui tend à ramener le pied dans le plan sagittal du tibia, soulageant ainsi l'articulation sous-astragalienne 1 1 . Simultanément, la coque talonnière 24 ainsi constituée s'oppose aux mouvements de roulis du pied par rapport à la chaussure elle-même lors des mouvements d'éversion et d'inversion, par le fait que le calcaneum 4 est étroitement enveloppé par la coque talonnière 24. Il en résulte un confort nettement amélioré et une plus grande sécurité lors de sollicitations extrêmes, notamment lors de changements de direction. L'invention s'applique à des chaussures basses telles qu'illustrées sur la figure 6, c'est-à-dire avec une tige 26 basse. Elle s'applique également à des chaussures à tige 26 plus haute, couvrant l'articulation tibio-tarsienne 10. Elle s'applique tout aussi bien à des chaussures à enveloppe 25 souple qu'à des chaussures à coque plantaire et tige rigides, dès lors que l'on prévoit une zone à plus grande souplesse au droit des encoches 18 et 19. A titre d'exemple, on a obtenu de bons résultats avec une chaussure telle qu'illustrée sur la figure 6, dans laquelle la coque talonnière 24 est une plaque en matière plastique semi-rigide, par exemple en polyuréthanne, en ABS, en polyéthylène, ayant une épaisseur de l'ordre de 1 mm. La coque talonnière 24, fixée à la semelle 2 par exemple par collage, est logée de préférence à l'intérieur de l'enveloppe externe de chaussure et est recouverte intérieurement par des couches protectrices de feutrine ou autre matériau approprié pour le contact avec le pied 1 . En alternative, la coque talonnière 24 peut constituer un élément externe, apparent sur la chaussure. La semelle 2 peut avoir une structure classique en polyuréthanne armé de fibres de carbone, l'enveloppe de pied 25 et la tige 26 pouvant être réalisées à partir de tout matériau déformable, du type polymère, ou tissu synthétique, ou cuir, par exemple, dont on peut faire varier l'élasticité en fonction du type d'usage. En fonction de l'utilisation escomptée de la chaussure, et en particulier en fonction des sollicitations dynamiques requises, on choisira des enveloppes de pied 25 et des tiges 26 qui sont plus souples lorsqu'on veut adapter la chaussure à un usage produisant des sollicitations plus faibles, et qui sont plus rigides lorsqu'on veut adapter la chaussure à un usage à sollicitations plus fortes. On peut s'attendre ainsi à réduire très sensiblement les risques d'accident par torsion des articulations du pied et de la cheville lors de pratiques sportives, ou même lors de la marche. Simultanément, le confort est considérablement amélioré. La présente invention n'est pas limitée aux modes de réalisation qui ont été explicitement décrits, mais elle en inclut les diverses variantes et généralisations contenues dans le domaine des revendications ci-après. - in the frontal plane F, an external roll of approximately 20 °, - in the sagittal plane, a dorsal flexion, directed along the arrow f2 and with an amplitude of approximately 10 °. Analysis of the movements of the subtalar joint of the foot and ankle has shown that all of these inversion and eversion movements in the three planes of space have instantaneous axes of displacement which -same move in space in a geometrical envelope comparable to a cone of revolution 12, which one calls sub-astragalian cone. The apex S of the cone 12 is located at a distance d of a few centimeters behind the calcaneum 4, and approximately at the third H1 of the height H of the posterior edge of the calcaneum 4. The mean axis 12a of the cone 12 passes through the apex S and by the median zone of the two ligament bundles 13 and 14 which link the talus 5 to the calcaneum 4. It can be seen that the mean axis 12a of the subtalar cone 12 makes with the horizontal plane P an angle α of between 20 ° and 50 °, and more generally between 30 ° and 45 °. The subtalar cone 12 also has an opening angle β whose average value varies between 15 ° and 30 ° depending on the age of the individuals and their anatomical particularities. If we consider a plan view of the foot, that is to say seen from above, the mean axis 12a of the subtalar cone 12 also makes, with respect to the sagittal plane, an angle of 10 ° to 30 ° inwards, that is to say towards the other foot. The above considerations thus define a geometric and mechanical model that is substantially representative of the kinematics of the ankle joint on anatomical and physiological bases. The shoe according to the invention, and the heel cup of the shoe according to the invention, aim to promote the movements thus defined around the axes moving in the subtalar cone 12, while limiting these movements to avoid excessive efforts on the articular elements at the end of range of motion, and ensuring good protection of the fragile constituent parts of the foot. According to the invention, to ensure both satisfactory freedom of these movements, necessary for obtaining sufficient comfort, and to effectively protect the foot against shocks and excessive range of motion, it is necessary to 'wrap the back of the foot in a heel shell with lateral notches positioned in correspondence with the subtalar cone 12. Consider Figures 1 to 4, which illustrate such a heel shell structure 24 according to the invention. The heel cup 24 is made from a plate 15 of an elastically deformable material having sufficient rigidity to constitute a shoe reinforcement. The plate 15 of material is limited by a slightly convex lower edge 16 and by a more strongly convex upper edge 17 having two lateral notches 18 and 19 arranged symmetrically with respect to a median axis 20 generally perpendicular to the lower edge 16. A distinction is thus made between a central zone 21 intended to constitute a posterior ascent in a shoe, and two lateral fins 22 and 23. In practical applications for multi-purpose shoes, for a size 42, the plate 15 can have a length L of between 12 and 16 approximately cm, and a height H of central zone 21 of between 4 and 7 cm approximately. The lateral notches 18 and 19 are oriented along respective axes 18a and 19a inclined at approximately 45 °. The lateral notches have an opening angle 18b or 19b of approximately 30 °. Their respective bottom 18c or 19c is at a distance d1 of about 2 cm from the middle M of the lower edge 16. The lower edge 16 may advantageously comprise at least one conformation notch 16a in V. The conformation notch 16a makes it possible to bring together the two segments constituting the lower edge 16, to give the plate 15 a concavity in the vertical direction to wrap the rear of the foot. FIG. 2 illustrates the heel cup 24 according to the invention produced from the plate 15 of FIG. 1, by folding the two fins 22 and 23 parallel to each other, and bringing the two lower edge segments closer together. 1 6 from one another to fill the shaping notch 16a, the central zone 21 being curved. We thus find the fin 22, the central zone 21 forming a posterior ascent, and the lateral notch 18 whose bottom 18c is located in front of the rear edge 21 a from which it is separated by a connecting zone 21 b of width d2 reduced but still sufficient to have elastic mechanical properties and with sufficient stiffness, controlling the relative movements between the rear ascent 21 and the lateral fins 22 and 23. In FIG. 3, the heel shell 24 of the Figure 2, on which there are the two fins 22 and 23, the posterior ascent 21, the side slits 18 and 19, the connecting zone 21b, and the shaping notch 16a whose edges are brought together or applied one against each other. Figure 4 also illustrates, in perspective, the heel cup on which there are the same main parts identified by the same reference numerals. We now consider Figure 6, which illustrates in external side view a foot engaged in a shoe according to an embodiment of the invention, including the heel cup 24 according to the invention. We find the constituent elements of the foot skeleton previously described in relation to Figure 5. In Figure 6, the invention is applied to a multi-purpose shoe with relatively low upper. The shoe comprises the sole 2, the heel cup 24, a foot cover 25, and a rod 26. The sole 2 is structured in the usual way, chosen according to the uses envisaged. The foot covering 25 is fixed to the sole 2, and is suitable for enveloping the plantar mass of the foot and of the calcane-pedious block. The rod 26, connected to the rear part of the foot envelope 25, is adapted to wrap at least the postero-upper zone of the foot. The heel cup 24 is arranged in the shoe to surround the rear part of the foot by covering at least the entire rear face of the foot from its base to above the calcaneum 4. Its lower edge 16 is fixed to the sole 2. The heel shell 24 laterally surrounds the calcaneum 4. In FIG. 6, we can see the posterior ascent 21 and the aileron 22. The notch 18 is oriented so as to substantially contain the lateral projection of the subtalar cone 1. As can be seen in FIG. 6, the posterior ascent 21 rises to a height greater than or equal to the height of the summit zone of the calcaneum 4. Preferably, as illustrated, the posterior ascent 21 rises to at a height about 2 to 4 cm above the top of the calcaneum. Such an arrangement makes it possible to protect, against impact, the area of the low insertions of the Achilles tendon. This also promotes the resumption of the rotational forces of the articular elements of the ankle, by distributing over a greater height the bearing forces of the rear part of the foot on the shoe. As can be seen in the figures, the posterior ascent 21 widens upwards, which makes it possible to laterally wrap the low inserts of the Achilles heel, and thus to increase their protection against shocks. The lateral fins such as the fin 22 develop forward at least as far as the anterior end zone of the calcaneum 4. Their height increases in front, which allows them to laterally wrap the zone front of the calcaneum 4 substantially over its entire height, as can be seen in FIG. 6. The heel cup 24 can be made of an elastically flexible material but having a certain rigidity, for example based on carbon or of composite material of the type carbon-kevlar, or even based on certain high density plastics. In contrast, the area of the notches 18 and 19, occupied by the foot shell 25 and / or the rod 26, must have greater flexibility in order to allow deformations during movements of the subtalar joint. During the movements of the joint, in particular the movements of eversion and inversion, the lateral notches 18 and 19 produce zones of preferential deformation of the shoe, oriented parallel to the subtalar cone 12. Nevertheless, the maintenance of the relatively rigid connection zone 21b makes it possible to produce, between the posterior ascent 21 and the lateral fins 22 and 23, an elastic return torque which tends to bring the foot back into the sagittal plane of the tibia, thus relieving the sub-articulation astragalian 1 1. Simultaneously, the heel cup 24 thus formed opposes the rolling movements of the foot with respect to the shoe itself during eversion and inversion movements, by the fact that the calcaneum 4 is tightly enveloped by the heel cup 24. Clearly comfortable improved and greater safety during extreme stresses, especially when changing direction. The invention applies to low shoes as illustrated in Figure 6, that is to say with a low upper 26. It also applies to shoes with a higher upper 26, covering the tibio-tarsal joint 10. It applies just as well to shoes with a flexible shell 25 as to shoes with a plantar shell and rigid upper, from when a zone with greater flexibility is provided in line with the notches 18 and 19. By way of example, good results have been obtained with a shoe as illustrated in FIG. 6, in which the heel cup 24 is a plate made of semi-rigid plastic, for example polyurethane, ABS, polyethylene, having a thickness of the order of 1 mm. The heel cup 24, fixed to the sole 2 for example by gluing, is preferably housed inside the outer shell of the shoe and is covered internally by protective layers of felt or other material suitable for contact with the foot. 1. As an alternative, the heel cup 24 can constitute an external element, visible on the shoe. The sole 2 may have a conventional polyurethane structure reinforced with carbon fibers, the foot covering 25 and the upper 26 being able to be made from any deformable material, of the polymer type, or synthetic fabric, or leather, for example, whose elasticity can be varied depending on the type of use. Depending on the expected use of the shoe, and in particular according to the dynamic stresses required, we will choose foot envelopes 25 and uppers 26 which are more flexible when we want to adapt the shoe to a use producing more stresses weak, and which are more rigid when we want to adapt the shoe to a use with higher loads. We can thus expect to very significantly reduce the risk of accident by twisting the joints of the foot and ankle during sports, or even when walking. At the same time, comfort is considerably improved. The present invention is not limited to the embodiments which have been explicitly described, but it includes the various variants and generalizations thereof contained in the field of claims below.

Claims

REVENDICATIONS 1 - Coque talonnière (24) de chaussure, comprenant une plaque (15) en un matériau élastiquement déformable à grande rigidité appropriée, et conformée pour entourer la partie postérieure du pied en recouvrant au moins toute la face postérieure du pied depuis sa base jusqu'au-dessus du calcaneum (4), et se développant vers l'avant, avec son bord inférieur (16) destiné à être fixé à la semelle (2) de chaussure, la plaque (15) comprenant, dans son bord supérieur (17), deux encoches latérales (18, 19) symétriques l'une de l'autre, caractérisée en ce que les encoches latérales (18, 19) sont orientées de façon que, lorsque la coque talonnière (24) est en place dans la chaussure, les encoches latérales (18, 19) se situent sensiblement au niveau des projections latérales du cône sous- astragalien (12), et la plaque (15) entoure latéralement le calcaneum (4). 2 - Coque talonnière selon la revendication 1 , caractérisée en ce que les encoches latérales (18, 19) ont une forme en V, évasée vers l'avant et vers le haut de la chaussure. 3 - Coque talonnière selon la revendication 2, caractérisée en ce que l'ouverture des encoches latérales (18, 19) en V est supérieure à l'angle β du cône sous-astragalien (12). 4 - Coque talonnière selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la profondeur des encoches latérales (18, 19) est telle que, lorsque la coque talonnière (24) est en place dans la chaussure, le fond (18c, 19c) des encoches latérales (18, 19) est peu en arrière de l'articulation sous- astragalienne (1 1 ). 5 - Coque talonnière selon l'une quelconque des revendications 1 à 4, caractérisée en ce que, pour une taille 42 de chaussure, la coque talonnière (24) est réalisée à partir d'une plaque (15) de matériau limitée par un bord inférieur (16) légèrement convexe et de longueur (L) comprise entre 12 et 16 cm environ, limitée par un bord supérieur (17) plus fortement convexe et ayant les deux encoches latérales (18, 19), la zone centrale de plaque (21 ) ayant une hauteur (H) comprise entre 4 et 7 cm environ. 6 - Coque talonnière selon l'une quelconque des revendications 1 à 5, caractérisée en ce que les encoches latérales (18, 19) sont orientées à 45° environ et ont un angle d'ouverture (18b, 19b) de 30° environ, leur fond (1 8c, 19c) étant à une distance (d1 ) d'environ 2 cm du milieu (M) du bord inférieur (16). 7 - Coque talonnière selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le bord inférieur (16) comprend au moins une encoche de conformation (16a) en V. 8 - Chaussure comportant :CLAIMS 1 - Heel cup (24) of a shoe, comprising a plate (15) made of an elastically deformable material of high appropriate rigidity, and shaped to surround the rear part of the foot by covering at least the whole rear face of the foot from its base to 'above the calcaneum (4), and developing towards the front, with its lower edge (16) intended to be fixed to the sole (2) of the shoe, the plate (15) comprising, in its upper edge ( 17), two lateral notches (18, 19) symmetrical to each other, characterized in that the lateral notches (18, 19) are oriented so that, when the heel cup (24) is in place in the shoe, the lateral notches (18, 19) are located substantially at the level of the lateral projections of the subtalar cone (12), and the plate (15) laterally surrounds the calcaneum (4). 2 - Heel cup according to claim 1, characterized in that the lateral notches (18, 19) have a V shape, flared towards the front and towards the top of the shoe. 3 - Heel shell according to claim 2, characterized in that the opening of the lateral notches (18, 19) in V is greater than the angle β of the subtalar cone (12). 4 - Heel shell according to any one of claims 1 to 3, characterized in that the depth of the lateral notches (18, 19) is such that, when the heel shell (24) is in place in the shoe, the bottom ( 18c, 19c) of the lateral notches (18, 19) is a little behind the subtalar joint (1 1). 5 - Heel shell according to any one of claims 1 to 4, characterized in that, for a shoe size 42, the heel shell (24) is made from a plate (15) of material limited by an edge lower (16) slightly convex and of length (L) between 12 and 16 cm approximately, limited by an upper edge (17) more strongly convex and having the two lateral notches (18, 19), the central plate area (21 ) having a height (H) of between 4 and 7 cm approximately. 6 - Heel shell according to any one of claims 1 to 5, characterized in that the lateral notches (18, 19) are oriented at approximately 45 ° and have an opening angle (18b, 19b) of approximately 30 °, their bottom (1 8c, 19c) being at a distance (d1) of about 2 cm from the middle (M) of the lower edge (16). 7 - Heel shell according to any one of claims 1 to 6, characterized in that the lower edge (16) comprises at least one conformation notch (16a) in V. 8 - Shoe comprising:
- une semelle (2),- a sole (2),
- une enveloppe de pied (25), fixée à la semelle (2) et adaptée pour envelopper la masse plantaire du pied et du bloc calcaneo-pédieux, - une tige (26), reliée à la partie postérieure de l'enveloppe de pied (25), et adaptée pour envelopper au moins la zone postéro-supérieure du pied,- a foot covering (25), fixed to the sole (2) and suitable for enveloping the plantar mass of the foot and of the calcaneopedious block, - a rod (26), connected to the posterior part of the foot covering (25), and adapted to envelop at least the postero-superior area of the foot,
- une coque talonnière (24), en matériau plus rigide, ayant un bord inférieur (16) fixé à la semelle (2), et conformée pour entourer la partie postérieure du pied en recouvrant au moins toute la face postérieure du pied depuis sa base jusqu'au- dessus du calcaneum (4), et pour entourer latéralement le calcaneum (4), caractérisée en ce que la coque talonnière (24) est conforme à l'une quelconque des revendications 1 à 7, réalisant un renfort monobloc constitué d'une remontée postérieure (21 ) et de deux ailerons latéraux (22, 23). 9 - Chaussure selon la revendication 8, caractérisée en ce que la coque talonnière (24) est réalisée en un matériau élastiquement déformable mais plus rigide que l'enveloppe de pied (25) et la tige (26). 10 - Chaussure selon la revendication 8, caractérisée en ce que la coque talonnière (24) est réalisée en un matériau plus rigide que la partie d'enveloppe de pied (25) et/ou de tige (26) située dans la zone des encoches latérales (18, 19). 1 1 - Chaussure selon l'une quelconque des revendications 8 à 10, caractérisée en ce que, au moins dans la zone des encoches latérales (18, 19), l'enveloppe de pied (25) et/ou la tige (26) constituent une zone de déformation élastique à raideur réduite. 12 - Chaussure selon l'une quelconque des revendications 8 à 1 1 , caractérisée en ce que la remontée postérieure (21 ) s'élève jusqu'à une hauteur supérieure ou égale à la hauteur de la zone sommitale du calcaneum (4). 13 - Chaussure selon la revendication 12, caractérisée en ce que la remontée postérieure (21 ) s'élève jusqu'à une hauteur située 2 à 4 cm environ au- dessus de la zone sommitale du calcaneum (4). 14 - Chaussure selon l'une quelconque des revendications 8 à 13, caractérisée en ce que la remontée postérieure (21 ) s'élargit vers le haut pour envelopper latéralement les insertions basses du talon d'Achille. 15 - Chaussure selon l'une quelconque des revendications 8 à 14, caractérisée en ce que les ailerons latéraux (22, 23) se développent vers l'avant au moins jusqu'à la zone d'extrémité antérieure du calcaneum (4). 16 - Chaussure selon l'une quelconque des revendications 8 à 15, caractérisée en ce que les ailerons latéraux (22, 23) ont une hauteur croissante vers l'avant, pour envelopper latéralement la zone antérieure du calcaneum (4) sensiblement sur toute sa hauteur. - a heel cup (24), of more rigid material, having a lower edge (16) fixed to the sole (2), and shaped to surround the rear part of the foot by covering at least the whole rear face of the foot from its base up to the calcaneum (4), and to surround the calcaneum (4) laterally, characterized in that the heel cup (24) conforms to any one of claims 1 to 7, providing a one-piece reinforcement consisting of 'a rear ascent (21) and two lateral fins (22, 23). 9 - Shoe according to claim 8, characterized in that the heel cup (24) is made of an elastically deformable material but more rigid than the foot envelope (25) and the upper (26). 10 - Shoe according to claim 8, characterized in that the heel cup (24) is made of a more rigid material than the part of the foot covering (25) and / or of the upper (26) located in the area of the notches side (18, 19). 1 1 - Shoe according to any one of claims 8 to 10, characterized in that, at least in the region of the lateral notches (18, 19), the foot casing (25) and / or the upper (26) constitute an elastic deformation zone with reduced stiffness. 12 - Shoe according to any one of claims 8 to 1 1, characterized in that the posterior ascent (21) rises to a height greater than or equal to the height of the summit area of the calcaneum (4). 13 - Shoe according to claim 12, characterized in that the posterior ascent (21) rises to a height situated 2 to 4 cm approximately above the summit area of the calcaneum (4). 14 - Shoe according to any one of claims 8 to 13, characterized in that the posterior ascent (21) widens upward to laterally wrap the low inserts of the Achilles heel. 15 - Shoe according to any one of claims 8 to 14, characterized in that the lateral fins (22, 23) develop forward at least as far as the anterior end zone of the calcaneum (4). 16 - Shoe according to any one of claims 8 to 15, characterized in that the lateral fins (22, 23) have an increasing height towards the front, to laterally wrap the anterior zone of the calcaneum (4) substantially over its entire height.
EP05775344A 2004-06-01 2005-05-31 Shoe heel cup and shoe equipped with such heel cup Not-in-force EP1765232B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0406086A FR2870685B1 (en) 2004-06-01 2004-06-01 TALONNIERE SHOE SHELL, AND SHOE PROVIDED WITH SUCH TALONNIERE SHELL
PCT/FR2005/001327 WO2005117642A2 (en) 2004-06-01 2005-05-31 Shoe heel cup and shoe equipped with one such heel cup

Publications (2)

Publication Number Publication Date
EP1765232A2 true EP1765232A2 (en) 2007-03-28
EP1765232B1 EP1765232B1 (en) 2012-11-21

Family

ID=34946858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05775344A Not-in-force EP1765232B1 (en) 2004-06-01 2005-05-31 Shoe heel cup and shoe equipped with such heel cup

Country Status (5)

Country Link
US (1) US7832122B2 (en)
EP (1) EP1765232B1 (en)
ES (1) ES2400188T3 (en)
FR (1) FR2870685B1 (en)
WO (1) WO2005117642A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8033393B2 (en) 2009-09-18 2011-10-11 Nike, Inc. Method of custom fitting an article of footwear and apparatus including a container
US7958993B2 (en) * 2009-09-18 2011-06-14 Nike, Inc. Footwear customization kit
US8627528B2 (en) * 2009-11-19 2014-01-14 Nike, Inc. Footwear customization kit
US20150196095A1 (en) * 2014-01-15 2015-07-16 Kiri Christa Chapman Heel strap device and method to use the same
US10576666B2 (en) 2016-01-07 2020-03-03 Nike, Inc. Portable customization system for articles of footwear
US20220117768A1 (en) * 2020-10-19 2022-04-21 Royal Manufacturing LLC Ankle brace with rear heel calcaneal stabilizing depression

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807062A (en) * 1971-01-22 1974-04-30 Karku Sport Ab Athletic boot
FR2662916B1 (en) * 1990-06-08 1992-09-18 Rhenter Jean Luc MULTI-PURPOSE SHOE WITH DEFORMABLE SUB-ASTRAGALIAN SECTION.
US5810754A (en) * 1997-02-14 1998-09-22 Kenosh; Michael J. Ankle orthotic
CA2198787A1 (en) * 1997-02-28 1998-08-28 Peter Donnelly Heat mouldable boot liner
US6228043B1 (en) * 1997-07-18 2001-05-08 Barry W. Townsend Shoe, ankle orthosis and method for protecting the ankle
US6018892A (en) * 1997-09-04 2000-02-01 Reebok International Ltd. Internal collar device for an article of footwear
US5868693A (en) * 1997-09-10 1999-02-09 Parker Medical Associates Limited Partnership Custom-fitted athletic ankle brace
US20020162250A1 (en) * 2001-05-02 2002-11-07 Campbell Todd Duncan Unitary orthotic insert and orthopedic insole
US7140127B2 (en) * 2004-09-14 2006-11-28 Sakurai Sports Mfg. Co., Ltd. Body for a skate boot

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005117642A2 *

Also Published As

Publication number Publication date
US7832122B2 (en) 2010-11-16
FR2870685A1 (en) 2005-12-02
EP1765232B1 (en) 2012-11-21
ES2400188T3 (en) 2013-04-08
WO2005117642A3 (en) 2006-02-16
FR2870685B1 (en) 2006-08-11
US20080034616A1 (en) 2008-02-14
WO2005117642A2 (en) 2005-12-15

Similar Documents

Publication Publication Date Title
BE1004224A3 (en) Stabilization device and heel shoe spring.
EP2394523A1 (en) Shoe with improved walking comfort
FR2745488A1 (en) REACTIVE FOOT PROSTHESIS
EP1765232B1 (en) Shoe heel cup and shoe equipped with such heel cup
EP2434918B1 (en) Sports shoe of the cleated type
EP2645895B1 (en) Athletic shoe having cleats
EP1229808B1 (en) Protective footwear, such as a boot or the like
EP1785047B1 (en) Sport shoe with pivotable sole
EP3691488A1 (en) Sole for an item of footwear having progressive damping
EP3232846B1 (en) Outer sole for footwear, comprising damping studs
WO2019141735A1 (en) Sole for a sports shoe comprising one or more deformation patterns
EP0495023B1 (en) Multi-purpose footwear having a deformable talocalcanean section
FR2734128A1 (en) SNOW SURF BOOT OF SOFT TYPE
EP1803362B1 (en) Sport shoe with lateral oscillation
EP0418172B1 (en) Articulated ski boot permitting natural movement of the ankle
EP0797937B1 (en) Shoesole with deformable arch and shoe provided with such a sole
WO2017125676A1 (en) Footwear sole
EP3773045B1 (en) Flexible insole for a footwear article and orthopaedic shoe comprising such an insole
EP3880023A1 (en) Sole of a shoe having a preferred flexing zone, and shoe having such an outer sole
WO2020099436A1 (en) Sports shoe including an optimized insole
WO2020178528A1 (en) Flip-flop or sandal type shoe
FR3029748A1 (en) OUTER SOLE SHOE COMPRISING IN THE TALONNIERE PART OF THE PROJECTED DAMPING PADS AND ELASTICALLY DEFORMABLE
FR2934758A1 (en) Sole structure for e.g. trail shoe, has branches arranged in star shape and extended from base of truncated or dome shaped energy restituting and damping element, where end of each branch is placed at periphery of sole
FR3029749A1 (en) OUTER SOLE SHOE COMPRISING IN THE FRONT PART OF THE PROJECTED AND ELASTICALLY DEFORMABLE PLOTS

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20061222

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20100706

RIC1 Information provided on ipc code assigned before grant

Ipc: A43B 23/17 20060101ALI20120507BHEP

Ipc: A43B 7/20 20060101ALI20120507BHEP

Ipc: A43B 3/00 20060101ALI20120507BHEP

Ipc: A61F 5/01 20060101AFI20120507BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 584658

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602005037100

Country of ref document: DE

Effective date: 20130117

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: WAGNER PATENT AG, CH

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2400188

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20130408

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20121121

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 584658

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121121

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130321

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130222

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130221

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20130822

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602005037100

Country of ref document: DE

Effective date: 20130822

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: NEW ADDRESS: BAECHERSTRASSE 9, 8832 WOLLERAU (CH)

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: MC

Payment date: 20140425

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20050531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20150529

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150601

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160531

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20170105

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170531

Year of fee payment: 13

Ref country code: CH

Payment date: 20170516

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20170524

Year of fee payment: 13

Ref country code: ES

Payment date: 20170602

Year of fee payment: 13

Ref country code: LU

Payment date: 20170519

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170727

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602005037100

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180531

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181201

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180531

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20190913

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20210518

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531