EP1515623B1 - Boot with floating connection - Google Patents
Boot with floating connection Download PDFInfo
- Publication number
- EP1515623B1 EP1515623B1 EP03748174A EP03748174A EP1515623B1 EP 1515623 B1 EP1515623 B1 EP 1515623B1 EP 03748174 A EP03748174 A EP 03748174A EP 03748174 A EP03748174 A EP 03748174A EP 1515623 B1 EP1515623 B1 EP 1515623B1
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- EP
- European Patent Office
- Prior art keywords
- item
- articulation
- footwear according
- footwear
- user
- 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.)
- Expired - Lifetime
Links
- 238000007667 floating Methods 0.000 title description 2
- 210000002683 foot Anatomy 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 210000003423 ankle Anatomy 0.000 claims description 7
- 230000006355 external stress Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 7
- 238000013459 approach Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 5
- 208000031968 Cadaver Diseases 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 235000005921 Cynara humilis Nutrition 0.000 description 2
- 240000002228 Cynara humilis Species 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/14—Shoes for cyclists
- A43B5/145—Boots for motorcyclists
Definitions
- the present invention relates to an article of footwear for the practice of a sport. It aims to protect the feet and legs of a user.
- the invention proposes that said articulation also allows a translation of the hinge axes relative to the body to bring the axes of rotation of the articulation substantially in accordance with the axes of rotation of the foot relative to the leg of the user.
- the boot adapts to the morphology of the user, provides greater mobility and a feeling of greater flexibility by following more accurately the complexity of the movement of the ankle.
- the articulation comprises at least one elastically deformable element tending to return the article of footwear to an initial position.
- the user thus feels a progressive assistance in his movements and a very present feeling of assistance.
- the articulation comprises two elastically deformable elements arranged symmetrically with respect to the direction of elevation and having different mechanical characteristics.
- the characteristics of resistance to deformation can be adapted more precisely to the protection requirements of the user, particularly because of the imperfect symmetry of the ball joint connection between the foot and the leg.
- each elastically deformable element comprises at least one flexible blade having a curved shape in the absence of external stress.
- the bending work of the blade makes it possible to effectively control both the rotational and translational movements between the body and the rod.
- each elastically deformable element comprises two flexible blades substantially V-shaped or U, so that each flexible blade comprises two branches comprising each a first end and a second end, the first ends of each flexible blade being interconnected and the second ends of each flexible blade being connected to one of the branches to the body and the other of the branches to the rod.
- the article of footwear further comprises an elastically deformable material, different from that of the branches, extending between the branches of at least some of the flexible blades.
- the deformation of the flexible blades is damped and easily adjustable by changing the characteristics of the elastically deformable material.
- this prevents an undesirable element (pebbles, mud, sand, ...) comes to be inserted between the branches of the flexible blades and modifies the mechanical characteristics of the elastically deformable element.
- the footwear further comprises stops to limit the amplitude of rotation in the median plane at a value between 50 degrees and 60 degrees.
- the invention proposes that the footwear further comprises stops to limit the amplitude of rotation in the direction of elongation to a value between 25 degrees and 35 degrees.
- said articulation allows a translation only in the direction of elevation.
- the translation movement of the axes of articulation relative to the body even if it is of small amplitude, advantageously between 5 millimeters and 15 millimeters, still provides a feeling of freedom of movement while effectively retaining the user's ankle.
- the figures illustrate a boot 1 comprising in the lower part a body 2 intended to receive the foot of a user, in the upper part a rod 4 intended to receive the leg of a user and in the intermediate part a hinge device 6 connecting the stem 4 to the body 2.
- the body 2 and the rod 4 each comprise a relatively rigid shell for protecting the lower limbs of the user. These shells can be locally perforated. They are lined internally for the comfort of the user and possibly externally.
- the body extends in a substantially horizontal direction of elongation 8 when the user places his foot on a horizontal ground, while the rod extends in a substantially vertical direction of elevation.
- boot has an inner face 1a and an outer face 1b disposed on either side of the median plane P.
- the boot 1 also has a transverse direction 12 extending substantially perpendicular to the direction of elongation 8 and to the elevation direction 10.
- the hinge device comprises two structures 14, 14 'with an elastically deformable geometry arranged substantially symmetrically with respect to the plane P, one on the inner face 1a and the other on the outer face 1b.
- Each structure 14, 14 ' mainly comprises a front flexible blade 16 and a rear flexible blade 18 (the flexible blades of the structure 14' are not visible in the figures) each substantially curved in the form of a V or U rib.
- flexible blade comprises an upper branch 16a, 18a and a lower branch 16b, 18b.
- Each branch 16a, 16b, 18a, 18b extends between a first end respectively 16a 1 , 16b 1 , 18a 1 , 18b 1 and a second end respectively 16a 2 , 16b 2 , 18a 2 , 18b 2 .
- the first ends 16a 1 , 16b 1 of the branches of the front flexible blade 16 are interconnected in a front apex zone 20 allowing rotation between the upper legs 16a and lower 16b.
- the first ends 18a 1 , 18b 1 of the branches of the rear flexible blade 18 are interconnected in a rear apex area 22 allowing rotation between the upper legs 18a and lower 18b.
- the second ends 16b 2 , 18b 2 of the lower branches are fixed to the body 2, while the second ends 16a 2 , 18a 2 of the upper branches are fixed to the rod 4.
- the flexible front 16 and rear 18 blades having rather the shape of an open V, as illustrated, when the apex zones 20, 22 are very localized or rather the shape of an open U when these areas 20, 22 are relatively extended.
- each structure 14 has substantially a form of deformable parallelogram.
- they could be arranged back to back, so that each structure 14 has a substantially deformable shape.
- the hinge device 6 further comprises two pivots 24, 26 extending substantially in the transverse direction between the front flexible blades 16 and rear 18. They are fixed to the body 2 and each slide in a groove 28,30 formed in the rod 4.
- the grooves 28,30 are each oblong in shape extending substantially in the direction of elevation 10 between an upper end 28a, 30a and a lower end 28, 30b preferably spaced about 10 millimeters.
- the pivots 24, 26 control the deformation of the structures 14, 14 'and can move in the direction of elevation, so that the structures 14, 14' of variable geometry thus define a floating hinge device positioned substantially at height of the malleolus on both sides of the ankle of a user.
- the hinge device 6 deforms inversely during an extension movement, the flexible blades before 16 deviating and the rear flexible blades 18 coming closer together.
- the upper branches 16a, 18a pivot relative to the rod 4, by elastic deformation near their second end 16a 2 , 18a 2 , as well as the lower branches 16b , 18b pivot relative to the body 2, by elastic deformation near their second end 16b 2 , 18b 2 .
- the boot 1 further comprises a rear stop device 32.
- this rear stop device 32 for limiting the bending movement comprises a nipple with a bulging head 34 integral with the body 2 and sliding in an oblong groove 40 formed in the rod 4.
- the positions extremes of the swollen nipple 34 corresponding to the maximum flexion and extension are shown in phantom in Figure 4.
- the amplitude ⁇ 1 of the bending movement authorized by the articulation device 6 is about 25 degrees with respect to the initial position shown in FIG. 1.
- the rod 4 In the extreme extended position, the rod 4 abuts at the rear on the body 2 and the pivots 24, 26 abut at the lower end 28b, 30b of the grooves 28, 30.
- the amplitude ⁇ 2 of the extension movement authorized by the articulation device 6 is about 30 degrees with respect to the initial position shown in FIG. 1.
- the structures 14, 14 'furthermore allow, by their parallelogram geometry, a lateral deformation in a direction substantially parallel to the elongation direction 8, in order to accompany the user's foot in his movements of pronation, supination and his movements. torsion handsets.
- the upper branches 16a, 18a approach by deformation of the front and rear apex zones 22 of the lower branches 16b, 18b.
- the pivot 24 approaches the upper end 28a of the groove 28.
- the upper branches depart from the lower branches by deformation of the front and rear apex zones.
- the pivot 26 approaches the lower end 26b of the groove 26.
- the pivot 24 abuts on the upper end 28a of the groove 28 and the pivot 26 abuts on the lower end 26b of the groove 26.
- the amplitude of the pronation movement ⁇ 1 allowed by the hinge device 6 relative to the initial position shown in Figure 5 is about 15 degrees.
- the upper branches 16a, 18a move away from the lower branches 16b, 18b by deformation of the apex zones before 20 22.
- the pivot 24 approaches the lower end 28b of the groove 28.
- the upper branches are closer to the lower branches by deformation of the front and rear apex zones.
- the pivot 26 approaches the upper end 26a of the groove 26.
- the hinge device 6 further comprises a damping material 36, elastically deformable which is different from that constituting the flexible blades 16,18.
- This damping material 36 is disposed between the flexible blades 16, 18 and fills the space between the branches 16a, 16b; 18a, 18b flexible blades.
- the damping material 36 is stretched or compressed. Thus, it exerts an increasing resistant force to avoid or at least reduce the impact when the hinge device reaches the stop.
- the damping material 36 adjoining the structure 14, in other words disposed on the inner face 1a, and the one adjoining the structure 14 ', in other words disposed on the outer face 1b, are different, in order to obtain an asymmetric behavior of the Similarly, the structures 14, 14 'may have different mechanical characteristics, as indicated above.
- the material of structures 14, 14 'with an elastically deformable geometry advantageously consists of technical polymers such as polyamides or polyurethanes.
- the damping material advantageously has lower mechanical strength characteristics. It may in particular be constituted by polyurethane foam.
- the structures 14, 14 ' are obtained from molding in one piece with the rod, as well as an intermediate portion 38 connected to the second end 16b 2 , 18b 2 of the lower branches 16b, 18b. This intermediate portion 38 is then firmly fixed to the body 2.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Container Filling Or Packaging Operations (AREA)
- Bridges Or Land Bridges (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Sealing Devices (AREA)
Abstract
Description
La présente invention a pour objet un article chaussant destiné à la pratique d'un sport. Il vise à protéger les pieds et les jambes d'un utilisateur.The present invention relates to an article of footwear for the practice of a sport. It aims to protect the feet and legs of a user.
Il est particulièrement adapté à la pratique de sports motorisés et plus particulièrement de la moto tout terrain où les pieds et les jambes de l'utilisateur sont très exposés. Toutefois, il peut également s'avérer avantageux pour pratiquer la moto de route, le snowboard, le vélo tout terrain, le jet ski ou la randonnée notamment.It is particularly adapted to the practice of motorized sports and more particularly of the mountain bike where the feet and the legs of the user are very exposed. However, it can also be advantageous to practice the road bike, snowboard, mountain bike, jet ski or hiking in particular.
On connaît déjà des bottes de motocross présentant une tige en cuir sur laquelle sont fixés des renforts en plastique. Les renforts assurent la protection, tandis que le cuir assure la liaison entre les renforts tout en autorisant une certaine souplesse. De telles bottes ne sont guère satisfaisantes en ce que la protection est limitée et la liberté de mouvement réduite.We already know motocross boots with a leather upper on which are attached plastic reinforcements. The reinforcements provide protection, while the leather provides the connection between the reinforcements while allowing flexibility. Such boots are hardly satisfactory in that the protection is limited and the freedom of movement reduced.
D'autre part, il est divulgué dans WO-A-0135781 une botte comprenant :
- une première coque rigide définissant un corps destiné à recevoir le pied d'un utilisateur et s'étendant suivant une direction d'allongement,
- une deuxième coque rigide définissant une tige destinée à recevoir la jambe de l'utilisateur et s'étendant sensiblement suivant une direction d'élévation, et
- une articulation reliant le corps et la tige, ladite articulation autorisant la rotation de la tige par rapport au corps suivant deux axes de rotation sensiblement perpendiculaires entre eux.
- a first rigid shell defining a body for receiving the foot of a user and extending in a direction of elongation,
- a second rigid shell defining a rod for receiving the leg of the user and extending substantially in a direction of elevation, and
- a hinge connecting the body and the rod, said hinge permitting rotation of the rod relative to the body along two axes of rotation substantially perpendicular to each other.
Toutefois, si cette botte d'une grande résistance mécanique assure une protection satisfaisante de l'utilisateur et une grande rigueur dans le guidage des mouvements du fait de sa conception à calottes sphériques, en contrepartie elle engendre à l'usage un confort moyen.However, if this boot of high mechanical strength provides satisfactory protection of the user and great rigor in the movement guidance due to its spherical cap design, in return it generates the use of a medium comfort.
Pour remédier à cet inconvénient et simplifier la réalisation de la botte, sans réduire la protection de l'utilisateur, l'invention propose que ladite articulation autorise en outre une translation des axes d'articulation par rapport au corps pour amener les axes de rotation de l'articulation sensiblement en concordance avec les axes de rotation du pied par rapport à la jambe de l'utilisateur.To overcome this disadvantage and simplify the construction of the boot, without reducing the protection of the user, the invention proposes that said articulation also allows a translation of the hinge axes relative to the body to bring the axes of rotation of the articulation substantially in accordance with the axes of rotation of the foot relative to the leg of the user.
Ainsi, la botte s'adapte à la morphologie de l'utilisateur, procure une plus grande mobilité et une sensation de plus grande souplesse en suivant plus fidèlement la complexité du mouvement de la cheville.Thus, the boot adapts to the morphology of the user, provides greater mobility and a feeling of greater flexibility by following more accurately the complexity of the movement of the ankle.
Avantageusement l'articulation comprend au moins un élément élastiquement déformable tendant à ramener l'article chaussant dans une position initiale.Advantageously, the articulation comprises at least one elastically deformable element tending to return the article of footwear to an initial position.
L'utilisateur ressent ainsi une assistance progressive dans ses mouvements et une sensation très présente d'assistance.The user thus feels a progressive assistance in his movements and a very present feeling of assistance.
Selon une autre caractéristique avantageuse de l'invention, l'articulation comprend deux éléments élastiquement déformables disposés symétriquement par rapport à la direction d'élévation et présentant des caractéristiques mécaniques différentes.According to another advantageous characteristic of the invention, the articulation comprises two elastically deformable elements arranged symmetrically with respect to the direction of elevation and having different mechanical characteristics.
Ainsi, les caractéristiques de résistance à la déformation peuvent être adaptées plus précisément aux exigences de protection de l'utilisateur, du fait notamment de la symétrie imparfaite de la liaison rotule entre le pied et la jambe.Thus, the characteristics of resistance to deformation can be adapted more precisely to the protection requirements of the user, particularly because of the imperfect symmetry of the ball joint connection between the foot and the leg.
Avantageusement, chaque élément élastiquement déformable comprend au moins une lame flexible présentant une forme incurvée en l'absence de contrainte extérieure. Le travail en flexion de la lame permet de contrôler efficacement à la fois les mouvements de rotation et de translation entre le corps et la tige.Advantageously, each elastically deformable element comprises at least one flexible blade having a curved shape in the absence of external stress. The bending work of the blade makes it possible to effectively control both the rotational and translational movements between the body and the rod.
Une articulation simple et robuste présentant les caractéristiques précitées consiste en ce que chaque élément élastiquement déformable comprenne deux lames flexibles sensiblement en forme de V ou de U, de sorte que chaque lame flexible comprenne deux branches comportant chacune une première extrémité et une deuxième extrémité, les premières extrémités de chaque lame flexible étant reliées entre elles et les deuxièmes extrémités de chaque lame flexible étant reliées pour l'une des branches au corps et pour l'autre des branches à la tige.A simple and robust articulation having the aforementioned characteristics consists in that each elastically deformable element comprises two flexible blades substantially V-shaped or U, so that each flexible blade comprises two branches comprising each a first end and a second end, the first ends of each flexible blade being interconnected and the second ends of each flexible blade being connected to one of the branches to the body and the other of the branches to the rod.
Selon une caractéristique avantageuse complémentaire, l'article chaussant comprend en outre un matériau élastiquement déformable, différent de celui des branches, s'étendant entre les branches de certaines au moins des lames flexibles.According to a complementary advantageous characteristic, the article of footwear further comprises an elastically deformable material, different from that of the branches, extending between the branches of at least some of the flexible blades.
Ainsi, la déformation des lames flexibles est amortie et facilement ajustable en modifiant les caractéristiques du matériau élastiquement déformable. En outre, ceci évite qu'un élément indésirable (cailloux, boue, sable,...) vienne s'insérer entre les branches des lames flexibles et modifie les caractéristiques mécaniques de l'élément élastiquement déformable.Thus, the deformation of the flexible blades is damped and easily adjustable by changing the characteristics of the elastically deformable material. In addition, this prevents an undesirable element (pebbles, mud, sand, ...) comes to be inserted between the branches of the flexible blades and modifies the mechanical characteristics of the elastically deformable element.
Afin de renforcer la protection de l'utilisateur, conformément à une autre caractéristique avantageuse, la direction d'élévation et la direction d'allongement définissant un plan médian, l'article chaussant comprend en outre des butées pour limiter l'amplitude de rotation dans le plan médian à une valeur comprise entre 50 degrés et 60 degrés.In order to reinforce the protection of the user, according to another advantageous characteristic, the elevation direction and the elongation direction defining a median plane, the footwear further comprises stops to limit the amplitude of rotation in the median plane at a value between 50 degrees and 60 degrees.
Ceci permet d'éviter des traumatismes ou lésions tout en autorisant une grande liberté de mouvement.This avoids trauma or injury while allowing great freedom of movement.
Selon une caractéristique complémentaire, l'invention propose que l'article chaussant comprenne en outre des butées pour limiter l'amplitude de rotation suivant la direction d'allongement à une valeur comprise entre 25 degrés et 35 degrés.According to a complementary feature, the invention proposes that the footwear further comprises stops to limit the amplitude of rotation in the direction of elongation to a value between 25 degrees and 35 degrees.
En outre, conformément à une autre caractéristique avantageuse de l'invention, ladite articulation autorise une translation uniquement suivant la direction d'élévation.In addition, according to another advantageous characteristic of the invention, said articulation allows a translation only in the direction of elevation.
Le mouvement de translation des axes d'articulations par rapport au corps, même s'il est de faible amplitude, avantageusement entre 5 millimètres et 15 millimètres, procure malgré tout une sensation de liberté de mouvement tout retenant efficacement la cheville de l'utilisateur.The translation movement of the axes of articulation relative to the body, even if it is of small amplitude, advantageously between 5 millimeters and 15 millimeters, still provides a feeling of freedom of movement while effectively retaining the user's ankle.
L'invention va apparaître encore plus clairement dans la description qui va suivre, faite en référence aux dessins annexés dans lesquels :
- La figure 1 illustre une botte de moto conforme à l'invention en position repos,
- la figure 2 illustre la botte de la figure 1 en position de flexion,
- la figure 3 illustre la botte de la figure 1 en position d'extension,
- la figure 4 est une vue suivant la flèche repérée IV à la figure 1,
- la figure 5 est une vue en coupe suivant la flèche repérée V-V à la figure 1, en position repos,
- la figure 6 est une vue conformément à la figure 5, en position de pronation de la botte,
- la figure 7 est une vue conformément à la figure 5, en position de supination de la botte.
- FIG. 1 illustrates a motorcycle boot according to the invention in the rest position,
- FIG. 2 illustrates the boot of FIG. 1 in bending position,
- FIG. 3 illustrates the boot of FIG. 1 in extended position,
- FIG. 4 is a view along the arrow marked IV in FIG. 1,
- FIG. 5 is a sectional view along the arrow marked VV in FIG. 1, in the rest position,
- FIG. 6 is a view according to FIG. 5, in pronation position of the boot,
- Figure 7 is a view according to Figure 5, supine position of the boot.
Les figures illustrent une botte 1 comprenant en partie inférieure un corps 2 destiné à recevoir le pied d'un utilisateur, en partie supérieure une tige 4 destinée à recevoir la jambe d'un utilisateur et en partie intermédiaire un dispositif d'articulation 6 reliant la tige 4 au corps 2.The figures illustrate a
Le corps 2 et la tige 4 comprennent chacun une coque relativement rigide destinée à protéger les membres inférieurs de l'utilisateur. Ces coques peuvent être localement ajourées. Elles sont doublées intérieurement pour le confort de l'utilisateur et éventuellement extérieurement. Le corps s'étend suivant une direction d'allongement 8 sensiblement horizontale lorsque l'utilisateur pose le pied sur un sol horizontal, tandis que la tige s'étend suivant une direction d'élévation 10 sensiblement verticale.The
La direction d'allongement 8 et la direction d'élévation 10 définissent un plan médian P parallèle au plan de représentation des figures 1 à 3. La botte présente une face interne 1a et une face externe 1b disposées de part et d'autre du plan médian P.The direction of
La botte 1 présente en outre une direction transversale 12 s'étendant sensiblement perpendiculairement à la direction d'allongement 8 et à la direction d'élévation 10.The
Le dispositif d'articulation comprend deux structures 14, 14' à géométrie élastiquement déformable disposées sensiblement symétriquement par rapport au plan P, l'une sur la face interne 1a et l'autre sur la face externe 1b.The hinge device comprises two
Chaque structure 14,14' comprend principalement une lame flexible avant 16 et une lame flexible arrière 18 (les lames flexibles de la structure 14' ne sont pas visibles sur les figures) chacune incurvée sensiblement en forme de nervure en V ou en U. Chaque lame flexible comprend une branche supérieure 16a,18a et une branche inférieure 16b, 18b. Chaque branche 16a, 16b,18a,18b s'étend entre une première extrémité respectivement 16a1, 16b1, 18a1, 18b1 et une deuxième extrémité respectivement 16a2, 16b2, 18a2, 18b2.Each
Les premières extrémités 16a1,16b1 des branches de la lame flexible avant 16 sont reliées entre elles dans une zone d'apex avant 20 permettant la rotation entre les branches supérieure 16a et inférieure 16b. Les premières extrémités 18a1,18b1 des branches de la lame flexible arrière 18 sont reliées entre elles dans une zone d'apex arrière 22 permettant la rotation entre les branches supérieure 18a et inférieure 18b.The
Les deuxièmes extrémités 16b2,18b2 des branches inférieures sont fixées au corps 2, tandis que les deuxièmes extrémités 16a2, 18a2 des branches supérieures sont fixées à la tige 4.The
Les lame flexibles avant 16 et arrière 18 présentant plutôt la forme d'un V ouvert, comme illustré, lorsque les zones d'apex 20, 22 sont très localisées ou plutôt la forme d'un U ouvert lorsque ces zones 20, 22 sont relativement étendues.The
Elles sont avantageusement disposées en opposition, autrement dit symétriquement par rapport à la direction d'élévation 10. Ici, elles sont ouvertes l'une vers l'autre, de sorte que chaque structure 14 présente sensiblement une forme de parallélogramme déformable. En alternative, elles pourraient disposées dos à dos, de sorte que chaque structure 14 présente sensiblement une forme de >< déformable.They are advantageously arranged in opposition, in other words symmetrically with respect to the
Elles présentent un module de flexion fonction du sport pratiqué et de la résistance physique de l'utilisateur.They present a flexural module according to the practiced sport and the physical resistance of the user.
Le dispositif d'articulation 6 comprend en outre deux pivots 24, 26 s'étendant sensiblement suivant la direction transversale entre les lames flexibles avant 16 et arrière 18. Ils sont fixés au corps 2 et coulissent chacun dans une rainure 28,30 ménagée dans la tige 4. Les rainures 28,30 sont chacune de forme oblongue s'étendant sensiblement suivant la direction d'élévation 10 entre une extrémité supérieure 28a, 30a et une extrémité inférieure 28, 30b distante avantageusement d'environ 10 millimètres.The
Ainsi, les pivots 24, 26 contrôlent la déformation des structures 14, 14' et peuvent se déplacer suivant la direction d'élévation, de sorte que les structures 14, 14' à géométrie variable définissent ainsi un dispositif d'articulation flottant positionné sensiblement à hauteur de la malléole de part et d'autre de la cheville d'un utilisateur.Thus, the
Tel qu'illustré aux figures 1 et 2, lors d'un mouvement de flexion de la cheville d'un utilisateur autour de la direction transversale 12, la tige 4 pivote autour des pivots 24, 26, les branches 16a, 16b des lames flexibles avant 16 se rapprochent par déformation des zones d'apex avant 20, tandis que les branches 18a, 18b des lames flexibles arrières 18 s'écartent par déformation des zones d'apex arrière 22.As illustrated in Figures 1 and 2, during a bending movement of the user's ankle around the
Tel qu'illustré aux figures 1 et 3, le dispositif d'articulation 6 se déforme inversement lors d'un mouvement d'extension, les lames flexibles avant 16 s'écartant et les lames flexibles arrières 18 se rapprochant.As illustrated in Figures 1 and 3, the
De plus, lors de ces mouvements de flexion et d'extension, les branches supérieures 16a, 18a pivotent par rapport à la tige 4, par déformation élastique à proximité de leur deuxième extrémité 16a2,18a2, de même que les branches inférieures 16b,18b pivotent par rapport au corps 2, par déformation élastique à proximité de leur deuxième extrémité 16b2,18b2.In addition, during these flexion and extension movements, the
Les pivots 24, 26 pouvant coulisser dans les rainures 28, 30, en position de flexion extrême, la tige 4 vient en butée à l'avant sur le corps 2 et les pivots 24, 26 viennent à proximité de l'extrémité supérieure 28a, 30a des rainures 28, 30 pour suivre le mouvement de la malléole de l'utilisateur. Si l'on poursuivait le mouvement de flexion, les pivots 24, 26 tendraient à coulisser dans les rainures 28, 30 vers leur extrémité inférieure. Un tel mouvement risquant d'être dommageable pour l'utilisateur, la botte 1 comprend en outre un dispositif de butée arrière 32.The
Tel qu'illustré à la figure 4, ce dispositif de butée arrière 32 visant à limiter le mouvement de flexion comprend un téton à tête renflée 34 solidaire du corps 2 et coulissant dans une rainure 40 de forme oblongue ménagée dans la tige 4. Les positions extrêmes du téton à tête renflée 34 correspondant à la flexion et l'extension maximales sont représentées en trait mixte à la figure 4.As illustrated in FIG. 4, this
Tel que repéré à la figure 2, l'amplitude α1 du mouvement de flexion autorisé par le dispositif d'articulation 6 est d'environ 25 degrés par rapport à la position initiale représentée à la figure 1.As shown in FIG. 2, the amplitude α 1 of the bending movement authorized by the
En position d'extension extrême, la tige 4 vient en butée à l'arrière sur le corps 2 et les pivots 24, 26 viennent en butée à l'extrémité inférieure 28b, 30b des rainures 28, 30.In the extreme extended position, the rod 4 abuts at the rear on the
Tel que repéré à la figure 3, l'amplitude α2 du mouvement d'extension autorisé par le dispositif d'articulation 6 est d'environ 30 degrés par rapport à la position initiale représentée à la figure 1.As indicated in FIG. 3, the amplitude α 2 of the extension movement authorized by the
Les structures 14, 14' permettent en outre par leur géométrie en parallélogramme une déformation latérale suivant une direction sensiblement parallèle à la direction d'allongement 8, afin d'accompagner le pied de l'utilisateur dans ses mouvements de pronation, supination et ses mouvements combinés de torsion.The
Tel qu'illustré aux figures 5 et 6, lors d'un mouvement de pronation de la cheville d'un utilisateur, les branches supérieures 16a,18a se rapprochent par déformation des zones d'apex avant 20 et arrière 22 des branches inférieures 16b,18b. En outre, le pivot 24 se rapproche de l'extrémité supérieure 28a de la rainure 28.As illustrated in FIGS. 5 and 6, during a pronation movement of a user's ankle, the
Inversement, concernant la structure 14', les branches supérieures s'écartent des branches inférieures par déformation des zones d'apex avant et arrière. En outre, le pivot 26 se rapproche de l'extrémité inférieure 26b de la rainure 26.Conversely, concerning the structure 14 ', the upper branches depart from the lower branches by deformation of the front and rear apex zones. In addition, the
En position de pronation extrême de la botte, le pivot 24 vient en butée sur l'extrémité supérieure 28a de la rainure 28 et le pivot 26 vient en butée sur l'extrémité inférieure 26b de la rainure 26. L'amplitude du mouvement de pronation θ1 autorisé par le dispositif d'articulation 6 par rapport à la position initiale représentée à la figure 5 est d'environ 15 degrés.In the extreme pronation position of the boot, the
Tel qu'illustré aux figures 5 et 7, inversement lors d'un mouvement de supination de la cheville d'un utilisateur, les branches supérieures 16a, 18a s'écartent des branches inférieures 16b, 18b par déformation des zones d'apex avant 20 et arrière 22. En outre, le pivot 24 se rapproche de l'extrémité inférieure 28b de la rainure 28.As illustrated in FIGS. 5 and 7, conversely during a supination movement of the user's ankle, the
Et, concernant la structure 14', les branches supérieures se rapprochent des branches inférieures par déformation des zones d'apex avant et arrière. En outre, le pivot 26 se rapproche de l'extrémité supérieure 26a de la rainure 26.And, concerning the structure 14 ', the upper branches are closer to the lower branches by deformation of the front and rear apex zones. In addition, the
En position de supination extrême de la botte, le pivot 24 vient en butée sur l'extrémité inférieure 28b de la rainure 28 et le pivot 26 vient en butée sur l'extrémité supérieure 26a de la rainure 26. L'amplitude du mouvement de supination θ2 autorisé par le dispositif d'articulation 6 par rapport à la position initiale représentée à la figure 5 est d'environ 15 degrés.In the extreme supine position of the boot, the
Le dispositif d'articulation 6 comprend en outre un matériau amortissant 36, élastiquement déformable qui est différent de celui constituant les lames flexibles 16,18. Ce matériau amortissant 36 est disposé entre les lames flexibles 16,18 et remplit l'espace séparant les branches 16a, 16b; 18a, 18b des lames flexibles.The
Lors de la déformation des structures 14,14' par rapport à la position initiale, le matériau amortissant 36 est étiré ou compressé. Ainsi, il exerce un effort résistant croissant permettant d'éviter ou du moins de réduire le choc lorsque le dispositif d'articulation arrive en butée.During the deformation of the
Avantageusement, le matériau amortissant 36 adjoint à la structure 14, autrement dit disposé sur la face interne 1a, et celui adjoint à la structure 14', autrement dit disposé sur la face externe 1b, sont différents, afin d'obtenir un comportement asymétrique du dispositif d'articulation 6. De même, les structures 14, 14' peuvent présenter des caractéristiques mécaniques différentes, tel qu'indiqué précédemment.Advantageously, the damping
Le matériau des structures 14,14' à géométrie élastiquement déformable est avantageusement constitué de polymères techniques tels que les polyamides ou polyuréthanes. Le matériau amortissant présente avantageusement des caractéristiques de résistance mécanique plus faibles. Il peut notamment être constitué par de la mousse de polyuréthanne.The material of
Tel qu'illustré, les structures 14,14' sont obtenues de moulage en une seule pièce avec la tige, de même qu'une partie intermédiaire 38 liée à la deuxième extrémité 16b2, 18b2 des branches inférieures 16b, 18b. Cette partie intermédiaire 38 est ensuite solidement fixée au corps 2.As illustrated, the
Claims (14)
- Item of footwear (1) intended for sports, in particular motorcycling, comprising:- a first rigid shell which defines a body (2) which is intended to receive the foot of a user and which extends in an extension direction (8),- a second rigid shell which defines an upper (4) which is intended to receive the leg of the user and which extends substantially in an upright direction (10),- an articulation (6) which connects the body and the upper, said articulation allowing rotation of the upper relative to the body in two axes of rotation (8, 12) which are substantially perpendicular to each other,characterised in that said articulation further allows translation of the axes of articulation relative to the body in order to bring the axes of rotation of the articulation substantially into alignment with the axes of rotation of the foot relative to the leg of the user.
- Item of footwear according to claim 1, characterised in that the articulation comprises at least a resiliently deformable element (14, 14') which tends to move the item of footwear into an initial position.
- Item of footwear according to claim 2, characterised in that, with the item of footwear having an inner face (1a) and an outer face (1b) which extend at one side and the other of a centre plane (P) which is defined by the extension direction (8) and the upright direction (10), each resiliently deformable element (14, 14') is positioned at the inner face (1a) or the outer face (1b) of the item of footwear, substantially level with the malleolus of the foot of the user.
- Item of footwear according to claim 3, characterised in that the articulation comprises two resiliently deformable elements (14, 14') which are arranged symmetrically relative to the centre plane (P), one at the inner face (1a), the other at the outer face (1b), at both sides of the ankle of the user.
- Item of footwear according to claim 4, characterised in that the two resiliently deformable elements (14, 14') have different mechanical properties.
- Item of footwear according to any one of claims 2 to 5, characterised in that each resiliently deformable element comprises at least a flexible strip having an inwardly curved shape in the absence of any external stress.
- Item of footwear according to claim 6, characterised in that each resiliently deformable element comprises two flexible strips (16, 18) which are substantially V-shaped or U-shaped so that each flexible strip comprises two branches (16a, 16b; 18a, 18b), each comprising a first end (16a1, 16b1, 18a1, 18b1) and a second end (16a2, 16b2, 18a2, 18b2), the first ends of each flexible strip being connected to each other and the second ends of each flexible strip being connected, in the case of one of the branches (16b, 18b), to the body and, in the case of the other branch (16a, 18a), to the upper.
- Item of footwear according to claim 7, characterised in that it further comprises a resiliently deformable material (36) which is different from that of the branches and which extends between the branches of at least some of the flexible strips.
- Item of footwear according to any one of claims 2 to 8, characterised in that the articulation further comprises at least a pivot (24, 26) which is interposed between the body and the upper and which guides the rotation of the upper relative to the body about a transverse direction (12) which is substantially perpendicular to the extension direction and the upright direction.
- Item of footwear according to any one of the preceding claims, characterised in that, with the upright direction and the extension direction defining a centre plane, the item of footwear further comprises stops for limiting the extent of rotation (α1, α2) in the centre plane to a value of between 50° and 60°.
- Item of footwear according to any one of the preceding claims, characterised in that it further comprises stops for limiting the extent of rotation (θ1, θ2) in the extension direction to a value of between 25° and 35°.
- Item of footwear according to any one of the preceding claims, characterised in that said articulation allows translation only in the upright direction.
- Item of footwear according to any one of the preceding claims, characterised in that the two axes of articulation (8, 12) are substantially perpendicular to the upright direction (10).
- Item of footwear according to any one of the preceding claims, characterised in that the extent of translation of the axes of articulation relative to the body is between 5 millimetres and 15 millimetres.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0207636A FR2841107B1 (en) | 2002-06-20 | 2002-06-20 | FLOATING ARTICULATION BOX |
FR0207636 | 2002-06-20 | ||
PCT/FR2003/001838 WO2004000057A1 (en) | 2002-06-20 | 2003-06-17 | Boot with floating connection |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1515623A1 EP1515623A1 (en) | 2005-03-23 |
EP1515623B1 true EP1515623B1 (en) | 2007-03-21 |
Family
ID=29719909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03748174A Expired - Lifetime EP1515623B1 (en) | 2002-06-20 | 2003-06-17 | Boot with floating connection |
Country Status (8)
Country | Link |
---|---|
US (1) | US7257908B2 (en) |
EP (1) | EP1515623B1 (en) |
AT (1) | ATE357160T1 (en) |
AU (1) | AU2003267487A1 (en) |
DE (1) | DE60312681T2 (en) |
ES (1) | ES2285163T3 (en) |
FR (1) | FR2841107B1 (en) |
WO (1) | WO2004000057A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2841105B1 (en) * | 2002-06-20 | 2005-02-04 | Random Design | FOOTWEAR WITH RIGID SHELL AND FLEXIBLE PATIN |
ITUD20060176A1 (en) | 2006-07-14 | 2008-01-15 | Calzaturificio Dal Bello Spa | SPORTS FOOTWEAR, AS A SKI, SNOWBOARD, TREKKING, OR LIKE SHOE |
US8438757B2 (en) * | 2009-06-23 | 2013-05-14 | Mark Costin Roser | Human locomotion assisting shoe |
US8307572B2 (en) * | 2009-09-21 | 2012-11-13 | Nike, Inc. | Protective boot |
GB201522642D0 (en) * | 2015-12-22 | 2016-02-03 | Leatt Corp | Protective footwear |
ITUA20163575A1 (en) * | 2016-05-18 | 2017-11-18 | Torino Politecnico | Articulated foot-ankle orthosis with floating axis of rotation |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3067531A (en) * | 1961-03-15 | 1962-12-11 | Aspen Boot Ltd | Ski boot |
US3303584A (en) * | 1964-12-24 | 1967-02-14 | Rosemount Eng Co Ltd | Edging adjustment for ski boots |
DE2024573C3 (en) * | 1970-05-20 | 1979-08-23 | Hannes 8100 Garmisch-Partenkirchen Marker | Ski boot |
US3945134A (en) * | 1974-09-13 | 1976-03-23 | Alpine Research, Inc. | Ski boot |
IT1139821B (en) * | 1981-11-20 | 1986-09-24 | Nava & C Spa | BOOTS, ESPECIALLY FOR SPORTS USE |
IT8236198V0 (en) * | 1982-12-07 | 1982-12-07 | Perini Sergio | SKI BOOT WITH RIGID LEG WITH ADJUSTABLE SIDE INCLINATION FOR ADAPTATION TO THE USER'S LEG |
US5454173A (en) * | 1990-08-22 | 1995-10-03 | Salomon S.A. | Sports boot with a journalled collar |
DE69601785T2 (en) * | 1996-06-08 | 1999-07-08 | Shimano Inc., Osaka | Snow board boots |
FR2800976B1 (en) | 1999-11-16 | 2002-03-22 | Gerard Valat | PROTECTIVE FOOTWEAR, SUCH AS BOOTS OR THE LIKE |
IT1318533B1 (en) * | 2000-05-23 | 2003-08-27 | Alpinestars Res Srl | STRUCTURE TO CONTAIN EXCURSIONS OF THE KNEE BOOT OF A DAMOTOCYCLING BOOTE IN LONGITUDINAL, ROTATORY AND TORSIONAL DIRECTIONS |
-
2002
- 2002-06-20 FR FR0207636A patent/FR2841107B1/en not_active Expired - Fee Related
-
2003
- 2003-06-17 AU AU2003267487A patent/AU2003267487A1/en not_active Abandoned
- 2003-06-17 WO PCT/FR2003/001838 patent/WO2004000057A1/en active IP Right Grant
- 2003-06-17 EP EP03748174A patent/EP1515623B1/en not_active Expired - Lifetime
- 2003-06-17 DE DE60312681T patent/DE60312681T2/en not_active Expired - Lifetime
- 2003-06-17 AT AT03748174T patent/ATE357160T1/en not_active IP Right Cessation
- 2003-06-17 US US10/518,631 patent/US7257908B2/en not_active Expired - Fee Related
- 2003-06-17 ES ES03748174T patent/ES2285163T3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US7257908B2 (en) | 2007-08-21 |
ATE357160T1 (en) | 2007-04-15 |
ES2285163T3 (en) | 2007-11-16 |
EP1515623A1 (en) | 2005-03-23 |
FR2841107B1 (en) | 2004-09-24 |
DE60312681D1 (en) | 2007-05-03 |
DE60312681T2 (en) | 2007-12-06 |
AU2003267487A1 (en) | 2004-01-06 |
FR2841107A1 (en) | 2003-12-26 |
US20050217151A1 (en) | 2005-10-06 |
WO2004000057A1 (en) | 2003-12-31 |
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