EP1229808A1 - Protective footwear, such as a boot or the like - Google Patents

Protective footwear, such as a boot or the like

Info

Publication number
EP1229808A1
EP1229808A1 EP00979735A EP00979735A EP1229808A1 EP 1229808 A1 EP1229808 A1 EP 1229808A1 EP 00979735 A EP00979735 A EP 00979735A EP 00979735 A EP00979735 A EP 00979735A EP 1229808 A1 EP1229808 A1 EP 1229808A1
Authority
EP
European Patent Office
Prior art keywords
footwear according
foot
caps
vamp
boot
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
EP00979735A
Other languages
German (de)
French (fr)
Other versions
EP1229808B1 (en
Inventor
Gérard VALAT
Cédric Ragot
Romain Cuvellier
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.)
VALAT, GERARD
Original Assignee
VALAT G RARD
Valat G rard
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
Family has litigation
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Application filed by VALAT G RARD, Valat G rard filed Critical VALAT G RARD
Publication of EP1229808A1 publication Critical patent/EP1229808A1/en
Application granted granted Critical
Publication of EP1229808B1 publication Critical patent/EP1229808B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes
    • A43C11/14—Clamp fastenings, e.g. strap fastenings; Clamp-buckle fastenings; Fastenings with toggle levers
    • A43C11/1406—Fastenings with toggle levers; Equipment therefor
    • A43C11/146—Fastenings with toggle levers with adjustment means provided for on the strap, e.g. ratchet strap
    • A43C11/1473—Fastenings with toggle levers with adjustment means provided for on the strap, e.g. ratchet strap characterised by means to retain the preferred position on the strap when the fastening means are in the loosened position

Definitions

  • the present invention relates to a protective boot with great flexibility of use.
  • a protective boot is particularly suitable and recommended in particular for motor sports and more particularly in the field of all-terrain motorcycle. Its use will however also be advantageously provided for other applications such as road motorcycles, snowboarding, skiing, mountain biking, jet skiing, hiking boots, etc.
  • the feet of the user are very exposed and intervene in the control, in particular for the change of speeds, braking, the support taking, the jumps and the figures.
  • the boot must provide effective protection without hampering the mobility of the foot, no more than "touching", which corresponds to contradictory requirements which to date have not been possible to meet satisfactorily.
  • the boot consists essentially of rigid plastic in two parts, namely the sole with the upper and the upper which are articulated to each other around an axis, having a certain degree of freedom thanks to the combination, with this axis, of metal fittings in which the axis can play.
  • the rod spreads over a single part which is locked by means of straps or hooks.
  • a ski boot which includes sphere caps, but in which no means is provided for more particularly limiting the movements of the foot in the direction of flexion / extension.
  • the assembly only allows slight movements of articulation in inclined lateral planes, because otherwise it would be practically impossible to ski, such lateral movements having to be prohibited or in any case very limited to allow the skier to navigate by means of the edges.
  • such a boot of course offers no sensation of "touching" at the level of the sole of the foot.
  • the object of the invention is to solve the difficulties mentioned above, by providing a protective footwear such as a boot or the like, usable in particular in the field of motorcycles and sports in general, capable of allowing good freedom of movement of the foot while protecting it and the lower leg against various shocks and torsional forces, this article being characterized in that, integral with the vamp, substantially at the height of the ankle, are provided on each side, left and right of the article, at least one cap substantially of sphere against which slides internally and / or externally another sphere cap secured to each side, left and right of the article, of the rod of the article, means being provided which limit the relative sliding movements of the caps interdependent of the vamp against the caps interdependent of the rod.
  • the footwear is characterized in that said sphere caps all have substantially the same center of rotation located substantially at the virtual center of rotation of the ankle of a foot wearing said article.
  • said sphere caps all have substantially the same center of rotation located substantially at the virtual center of rotation of the ankle of a foot wearing said article.
  • the two cap systems in order to respond even more precisely to the morphology of the malleoli.
  • the cap on the inside of the foot can be located further forward than the outer cap of the foot. They can also be offset from the horizontal plane without considerably modifying the degrees of freedom of movement that the ball joint system generally offers.
  • the means for limiting the movement of the caps are advantageously constituted, for each set of caps sliding against each other, by a central hole formed in a cap secured to the vamp or the rod and by an axis secured to the rod or the vamp moving with play in said hole.
  • the upper is articulated on the sole of the article substantially at the level of the folding axis of the foot wearing said article and is locked and unlocked on each side substantially towards the rear of the arch of the foot.
  • the locking and unlocking of the vamp on the sole are done by means of two rack and pawl type devices which are lockable and unlockable manually, each rack engaging automatically with its pawl cooperating by simply lowering the vamp on the sole over the foot which has been engaged on said sole.
  • the footwear comprises tensioners, one end of which is fixed to the upper at a certain height from the sole and the other end of which is fixed to the upper or to a piece which is fixed, said tensioners being provided respectively on the front and on the rear of the article and which respectively exert an increasing force tending to oppose the rear extension or the forward bending of the leg enclosed in the rod of the article.
  • tensioners thus cooperate to bring the position of the foot back to the rest position, thereby relieving the muscles and tendons of the user.
  • optionally elastic, deformable and shock-absorbing stops are provided on the upper against which the cooperating parts of the rod come to bear in positions of rear extension respectively. or forward bending. These stops, advantageously in relation to the aforementioned tensioners, tend to prevent the possibility that the user's leg takes an angle relative to the foot, which exceeds the limits authorized by physiology.
  • the upper and / or the sole are made of a flexible flexible material, which advantageously comes from material with the rest of the sole and / or of the vamp.
  • Figure 1 shows in perspective view a boot, in fact a straight boot, that is to say for right foot, according to the invention in the closed position of use;
  • Figure 2 shows the boot of Figure 1 in the open position ready to be paved;
  • Figure 3 shows the boot of Figure 1 in the deformation position it takes when the user folds the foot
  • Figures 4,5 and 6 are sectional views taken in a transverse plane passing through the virtual center of rotation of the ankle and respectively illustrate the position of the boot when it is straight, when it is bent to the left and when 'it is bent to the right, these views being made from the front, that is to say revealing the heel;
  • Figure 7 is a schematic perspective view of the boot illustrated in the preceding figures in which there has been shown the virtual sphere on which are formed and slide the above caps;
  • Figures 8 and 9 show schematically how the movements of the boot upper can be limited in rear extension or in front bending;
  • Figures 10 and 1 1 show the cooperation of the tensioners advantageously provided on the article to assist the muscular efforts and cooperate for the limitation of the stresses in extension and in flexion, according to a first embodiment.
  • Figure 12 shows, front view of the boot of the previous figures, schematically, to better illustrate the cooperation of various elements which constitute it;
  • Figure 13 shows side view and in perspective how is articulated part of the vamp on the sole;
  • Figure 14 shows in perspective view a variant of the tensioners provided on the article to assist the muscular efforts and cooperate for the limitation of the stresses in extension and in flexion as well as in torsion and lateral flexions;
  • Figure 15 shows an exploded view of the main parts illustrated in Figure 14;
  • FIG. 16 shows in perspective view an alternative embodiment of the rigid shell forming a base or "liner" of the boot;
  • FIG. 17 shows, seen in cross section, the conformation of the tip of the shell illustrated in FIG. 16.
  • the boot generally referenced 1 comprises: a sole 2 with a heel 2a and a point 2b on which is mounted a vamp 3, with above a rod 4 formed essentially in two parts 4a, 4b.
  • a rod 4 formed essentially in two parts 4a, 4b.
  • 5 we referenced the top of the tip of the boot, that is to say the front of the upper, and in 6 the bottom of the upper at the heel secured to the sole 2.
  • At the rear of this part 6 there is also a plate 7 intended for the reinforcement of the Achilles tendon, which plate 7 is articulated on an axis 8 at the lower rear part 6 of the rod.
  • the two parts 4a and 4b of the rod are joined in the closed position by straps 9,10 and hooks 11, 12. Such straps and hooks are of conventional use in the field, in particular for ski boots.
  • the upper 3 is articulated on the sole 2 around pivots respectively on the right 13, inside side of the boot, and on the left 14, outside side of the boot, (fig. 13) substantially at the level from the fold line of the foot as can be seen more clearly in FIG. 3.
  • an axis 26 on the right and 27 on the left crosses the sets of combined caps of the upper and the upper.
  • the axis can be fixed, for example riveted at its two ends on the caps of the rod as it appears particularly in Figures 4 to 6.
  • the pins 26, 27 and / or the holes such as the hole 28 provided on the cap of the upper include on their parts which abut one against the other shock and force absorbing means, such as for example elastomer parts.
  • elastomeric stops have been shown on the periphery of the holes 28, 48, referenced 29.
  • FIGS. 10 and 11 we see, working in relation to the rear protective plate 7 of the Achilles heel and the front protective plate 34, tensioners referenced respectively 35 on the rear and 36 on the front of the article.
  • the rear tensioner 35 is fixed at one end to the protective plate 7 and at its other end by means of a loop as can be seen more clearly at FIG. 1 on a hook 37 of the strap 10.
  • the front tensioners 36 as can be seen more clearly in FIG. 12 are fixed at one end to the front protective plate 34 and at their other end to an upper or middle part of the front part 4a. of the rod at points referenced 38
  • FIGS. 10 and 11 it can be seen that the front reinforcement plate 34 is articulated to the upper 3 at the instep around an axis referenced 39.
  • the upper 3 and / or the sole 2 are made at this level of flexible flexible material, for example by simple weakening by thinning at this level of the plastic material of which the sole and the upper are made.
  • shock absorbing means and effort such as an elastomer
  • tensioners such as 35 and 36
  • the stops 30, 31 cooperate with the upper of the boot. to also limit the amplitude of these movements and absorb shocks under the extreme conditions authorized by the article. It is observed at this level that the tensioners 35, 36 can also brake before limiting or stopping the movement of rear extension or front bending, if it is provided for example that beyond a certain length, that they are almost no longer extensible.
  • the boot fitting is particularly convenient, since the articulation of the upper 3, at the axes 13, 14 and the total clearance of the rear part of the boot allows the user to slide his foot flat on the sole.
  • This operation being carried out, the user only has to lower the upper 3 on the sole 2, the upper locking by means of the pawls 18,19 on the racks 15,16 automatically. Then, the user can tighten around his leg the two parts 4a and 4b of the rod by means of the straps 9,10 and the hooks 11, 12, then fix the loop of the tensioner 35 on the hook 37 (fig. 1) .
  • tensioners have been illustrated as being constituted by elastic bands, for example of rubber of suitable quality; but other types of tensioners could be used, for example metal, pneumatic, oleopneumatic traction springs; in the same way, provision could be made for compression or torsion springs, for example mounted at the level of the extension 30 and flexion 31 stops (FIGS. 8 and 9).
  • the tensioners in question it is possible by suitably manufacturing the tensioners in question to provide different forces perfectly suited for the flexion movement on the one hand and extension on the other hand, as well as the movements of torsions and lateral flexions called pronation or supination, while freeing the upper part of the rod.
  • the tensioners 50, 51 are also sandwiched between a reinforcement piece 4c which comes on the front of the rod and the front part 4a of the rod already described in the previous figures.
  • the sole of the boot comprises a kind of liner 55 formed by a rigid shell which is integral with the sole or comes in one piece with it and which will make it possible to protect the foot in particular against frontal impacts.
  • a slight clearance is allowed by a small clearance provided between the collar 56 which overcomes the liner at the level of the front third and the side slots 57, 58 in which the ends of the collar are retained there, below.
  • the toe and the heel of the boot were respectively identified and in 115 and 116 the racks corresponding to those referenced 15.16, for example in FIG. 2.
  • In 59 is referenced the hole to the right of the boot 55 in which will pass the corresponding right articulation pivot 13 of the upper 3.
  • the underside of the tip 105 of the shell of the liner is advantageously shaped as illustrated in the drawings with cells 60, 61, 62 and in particular a cell 62 which is wider substantially below the articulation of the phalanges of the foot, which socket is open in the middle and has two raised parts 63, 64 which abut one against the other. It is understood that in this way the shell of the liner can be opened relatively easily in the direction of the arrow F1 to allow the toes to be raised, in other words to bend the foot normally, while opposing opposite rotation in the opposite direction. in the direction of arrow F2, for example following a shock on the upper end of the phalanges.
  • spherical cap spokes to make the joint of the invention with dimensions between approximately 70 mm and 100 mm for the smallest sizes and between approximately 100 mm and 130 mm for larger sizes; in addition, the cap on the inner side of the boot may have a radius of curvature slightly different from that of the cap on the outer side, this for a better conformation to the morphology of a foot.
  • the radius of curvature varies from the center towards the periphery, for example by reducing towards the periphery, so that by this arrangement we will obtain a variation of the effort to rotate the two caps one on the other, the effort increasing as the inclination relative at the central starting position changes.
  • This arrangement can also be treated asymmetrically, so as to obtain an easier rotation in the direction of the flexion / extension movement, and harder in the lateral direction in order to better protect the foot.
  • the variation in the radius of curvature could advantageously be of the order of 0% (perfect sphere cap) to, for example, 10%.
  • the resistance to the free rotation of the caps one on the other can also be adjusted by the more or less large spacing which can be left between the caps and which can for example be of the order of a few tenths of a millimeter to 1 or 2 mm.

Abstract

The invention concerns a protective footwear such as a boot or the like, for use in particular for motor cycle riding or for sports in general. Said footwear is characterised in that, integral with the front (3), substantially at the ankle are provided on either side, left and right of the footwear, at least a substantially spherical cap against which slides internally and/or externally another spherical cap integral on each side, left and right of the footwear, with the upper (4) of the footwear, means being provided which limit the relative sliding movements of the caps integral with the upper. Besides provide excellent protection, said boot allows the foot to move freely.

Description

"ARTICLE CHAUSSANT DE PROTECTION, TEL QUE BOTTE OU "PROTECTIVE FOOTWEAR, SUCH AS BOOTS OR
ANALOGUE"SIMILAR"
La présente invention a pour objet une botte de protection à grande souplesse d'utilisation. Une telle botte est particulièrement adaptée et recommandée en particulier pour les sports motorisés et plus particulièrement dans le domaine de la moto tout terrain. Son utilisation sera cependant avantageusement prévue également pour d'autres applications telles que la moto de route, le snowboard, le ski, le VTT, le Jet ski, les chaussures de randonnée, etc..The present invention relates to a protective boot with great flexibility of use. Such a boot is particularly suitable and recommended in particular for motor sports and more particularly in the field of all-terrain motorcycle. Its use will however also be advantageously provided for other applications such as road motorcycles, snowboarding, skiing, mountain biking, jet skiing, hiking boots, etc.
Dans la pratique du motocross, les pieds de l'utilisateur sont très exposés et interviennent dans le pilotage, notamment pour le passage des vitesses, le freinage, la prise d'appui, les sauts et les figures. La botte doit assurer une protection efficace sans entraver la mobilité du pied, non plus que le « toucher », ce qui correspond à des exigences contradictoires auxquelles il n'a pas été possible à ce jour de répondre de façon satisfaisante.In the practice of motocross, the feet of the user are very exposed and intervene in the control, in particular for the change of speeds, braking, the support taking, the jumps and the figures. The boot must provide effective protection without hampering the mobility of the foot, no more than "touching", which corresponds to contradictory requirements which to date have not been possible to meet satisfactorily.
La plupart des bottes de qualité, aujourd'hui disponibles dans le commerce, ont adopté une architecture et des technologies identiques: à savoir une tige en cuir sur laquelle sont greffés, collés et/ou cousus, de nombreux renforts plastiques. Les renforts plastiques ont pour objet d'assurer la protection, tandis que le cuir a pour objet d'assurer la liaison entre les divers renforts plastiques tout en permettant une certaine souplesse de la botte. Cette solution n'est pas satisfaisante en ce que la protection est limitée, la liberté de mouvement est réduite en particulier par les différentes brides de serrage qui sont requises tandis que la botte vieillit avec le temps et ses caractéristiques évoluent et se réduisent. En outre une telle fabrication nécessite beaucoup de main-d'œuvre et est très coûteuse.Most quality boots, currently available commercially, have adopted identical architecture and technologies: namely a leather upper on which are grafted, glued and / or sewn, numerous plastic reinforcements. The plastic reinforcements are intended to provide protection, while the leather is intended to provide the connection between the various plastic reinforcements while allowing a certain flexibility of the boot. This solution is not satisfactory in that the protection is limited, freedom of movement is reduced in particular by the various clamps which are required while the boot ages with time and its characteristics evolve and decrease. In addition, such manufacture requires a lot of manpower and is very expensive.
Une autre approche a été essayée mais n'a pas donné la satisfaction escomptée. Selon cette approche, comme expliqué notamment dans le brevet US 4 184 273, la botte est constituée essentiellement en plastique rigide en deux parties, à savoir la semelle avec l'empeigne et la tige qui sont articulées l'une à l'autre autour d'un axe, présentant un certain degré de liberté grâce à la conjugaison, avec cet axe, de ferrures métalliques dans lesquelles l'axe peut jouer. Pour permettre le chaussage et le déchaussage de la botte, la tige s'écarte sur une seule partie qui se verrouille au moyen de brides ou crochets. Néanmoins cette botte n'a pas donné satisfaction et sa fabrication a été abandonnée car les parties rigides dont elle est constituée ne procurent pas à l'utilisateur le confort désirable, tandis que la liberté de mouvement du pied resté très limitée, en particulier lorsque l'utilisateur est en appui sur la semelle et que l'axe d'articulation n'a plus alors aucune liberté de mouvement en torsion latérale du pied. De plus, l'absence de déroulé du pied ne permet pas de procurer le "toucher" nécessaire à une bonne perception des commandes (pédale de frein en particulier).Another approach was tried but did not give the expected satisfaction. According to this approach, as explained in particular in US Patent 4,184,273, the boot consists essentially of rigid plastic in two parts, namely the sole with the upper and the upper which are articulated to each other around an axis, having a certain degree of freedom thanks to the combination, with this axis, of metal fittings in which the axis can play. To allow the boot to be put on and taken off, the rod spreads over a single part which is locked by means of straps or hooks. However, this boot was not satisfactory and its manufacture was abandoned because the rigid parts of which it is made do not provide the user with the desired comfort, while the freedom of movement of the foot remains very limited, in particular when the user is resting on the sole and the hinge pin no longer has any freedom of movement in lateral torsion of the foot. In addition, the absence of the foot roll does not provide the "touch" necessary for a good perception of the controls (brake pedal in particular).
Dans le document FR-A-2 656 776 est décrite une chaussure de ski qui comporte des calottes de sphère, mais dans laquelle aucun moyen n'est prévu pour limiter plus particulièrement les mouvements du pied dans la direction flexion/extension. En outre, comme indiqué à ce document, si la construction permet effectivement dans des mouvements de flexion vers l'avant ou vers l'arrière que la chaussure se comporte au niveau de la cheville comme une rotule, l'ensemble n'autorise que de légers mouvements d'articulation dans des plans latéraux inclinés, car autrement il ne serait pratiquement pas possible de skier, de tels mouvements latéraux devant être interdits ou en tout cas très limités pour permettre au skieur de se diriger au moyen des carres. En outre, s'agissant d'une chaussure de ski, une telle chaussure n'offre bien entendu aucune sensation de « toucher » au niveau de la plante du pied.In document FR-A-2 656 776 is described a ski boot which includes sphere caps, but in which no means is provided for more particularly limiting the movements of the foot in the direction of flexion / extension. In addition, as indicated in this document, if the construction effectively allows in forward or backward flexion movements that the shoe behaves at the ankle like a kneecap, the assembly only allows slight movements of articulation in inclined lateral planes, because otherwise it would be practically impossible to ski, such lateral movements having to be prohibited or in any case very limited to allow the skier to navigate by means of the edges. In addition, in the case of a ski boot, such a boot of course offers no sensation of "touching" at the level of the sole of the foot.
L'invention a pour objet de résoudre les difficultés ci-dessus mentionnées, en proposant un article chaussant de protection tel qu'une botte ou analogue, utilisable en particulier dans le domaine de la moto et des sports en général, susceptible de permettre une bonne liberté de mouvement du pied tout en le protégeant ainsi que le bas de la jambe contre les chocs et efforts de torsion divers, cet article étant caractérisé en ce que, solidaires de l'empeigne, sensiblement à la hauteur de la cheville, sont prévues de chaque côté, gauche et droit de l'article, au moins une calotte sensiblement de sphère contre laquelle glisse intérieurement et/ou extérieurement une autre calotte de sphère solidaire de chaque côté, gauche et droit de l'article, de la tige de l'article, des moyens étant prévus qui limitent les mouvements relatifs de glissement des calottes solidaires de l'empeigne contre les calottes solidaires de la tige.The object of the invention is to solve the difficulties mentioned above, by providing a protective footwear such as a boot or the like, usable in particular in the field of motorcycles and sports in general, capable of allowing good freedom of movement of the foot while protecting it and the lower leg against various shocks and torsional forces, this article being characterized in that, integral with the vamp, substantially at the height of the ankle, are provided on each side, left and right of the article, at least one cap substantially of sphere against which slides internally and / or externally another sphere cap secured to each side, left and right of the article, of the rod of the article, means being provided which limit the relative sliding movements of the caps interdependent of the vamp against the caps interdependent of the rod.
Selon une autre caractéristique de l'invention, l'article chaussant se caractérise en ce que lesdites calottes de sphère ont toutes sensiblement le même centre de rotation situé sensiblement au centre virtuel de rotation de la cheville d'un pied chaussé dudit article. On comprend que de la sorte le pied a une entière liberté de mouvement naturel dans toutes les directions. En outre, du fait que les mouvements relatifs de glissement des calottes sont limités, il est possible de limiter les mouvements du pied pour empêcher des torsions, flexions ou extensions qui dépasseraient les limites autorisées physiologiquement, assurant une prévention des traumatismes habituels de la cheville.According to another characteristic of the invention, the footwear is characterized in that said sphere caps all have substantially the same center of rotation located substantially at the virtual center of rotation of the ankle of a foot wearing said article. We understand that in this way the foot has complete freedom of natural movement in all directions. In addition, because the relative sliding movements of the caps are limited, it is possible to limit the movements of the foot to prevent twists, flexions or extensions which would exceed the physiologically authorized limits, ensuring prevention of the usual ankle injuries.
Compte tenu cependant de la souplesse relative des matériaux utilisés, il est possible de désaxer les deux systèmes de calottes afin de répondre encore plus précisément à la morphologie des malléoles. Ainsi la calotte à l'intérieur du pied peut se trouver plus en avant que la calotte extérieure du pied. On peut également les décaler par rapport au plan horizontal sans modifier considérablement les degrés de liberté de mouvement que propose en général le système de rotule.However, given the relative flexibility of the materials used, it is possible to offset the two cap systems in order to respond even more precisely to the morphology of the malleoli. Thus the cap on the inside of the foot can be located further forward than the outer cap of the foot. They can also be offset from the horizontal plane without considerably modifying the degrees of freedom of movement that the ball joint system generally offers.
Selon une autre caractéristique de l'invention, les moyens de limitation de mouvement des calottes sont avantageusement constitués, pour chaque jeu de calottes glissant l'une contre l'autre, par un trou central formé dans une calotte solidaire de l'empeigne ou de la tige et par un axe solidaire de la tige ou de l'empeigne se déplaçant avec du jeu dans ledit trou. Cette solution est économique car facile à mettre en œuvre, permettant également de limiter à volonté la liberté de mouvement que l'on veut laisser au pied chaussé de la botte.According to another characteristic of the invention, the means for limiting the movement of the caps are advantageously constituted, for each set of caps sliding against each other, by a central hole formed in a cap secured to the vamp or the rod and by an axis secured to the rod or the vamp moving with play in said hole. This solution is economical because it is easy to implement, also making it possible to limit the freedom of movement that you want to leave at the foot of the boot.
Selon une autre caractéristique avantageuse de l'invention, l'empeigne est articulée sur la semelle de l'article sensiblement au niveau de l'axe de pliage du pied chaussé dudit article et se verrouille et déverrouille de chaque côté sensiblement vers l'arrière de la voûte plantaire. Cela permet un chaussage et déchaussage très aisés de l'article, tel qu'une botte de moto. Avantageusement le verrouillage et le déverrouillage de l'empeigne sur la semelle se font au moyen de deux dispositifs de type à crémaillère et cliquet verrouillables et déverrouillables manuellement, chaque crémaillère s'engageant automatiquement avec son cliquet coopérant par simple abaissement de l'empeigne sur la semelle par dessus le pied qui a été engagé sur ladite semelle.According to another advantageous characteristic of the invention, the upper is articulated on the sole of the article substantially at the level of the folding axis of the foot wearing said article and is locked and unlocked on each side substantially towards the rear of the arch of the foot. This allows a very easy putting on and taking off of the article, such as a motorcycle boot. Advantageously, the locking and unlocking of the vamp on the sole are done by means of two rack and pawl type devices which are lockable and unlockable manually, each rack engaging automatically with its pawl cooperating by simply lowering the vamp on the sole over the foot which has been engaged on said sole.
Selon une autre caractéristique encore de l'invention, l'article chaussant comporte des tendeurs dont une extrémité est fixée sur la tige à une certaine hauteur de la semelle et dont l'autre extrémité est fixée sur l'empeigne ou sur une pièce qui y est fixée, lesdits tendeurs étant prévus respectivement sur l'avant et sur l'arrière de l'article et qui exercent respectivement un effort croissant tendant à s'opposer à l'extension arrière ou à la flexion avant de la jambe enserrée dans la tige de l'article. Ces tendeurs coopèrent ainsi pour ramener la position du pied vers la position de repos soulageant d'autant les muscles et tendons de l'utilisateur.According to yet another characteristic of the invention, the footwear comprises tensioners, one end of which is fixed to the upper at a certain height from the sole and the other end of which is fixed to the upper or to a piece which is fixed, said tensioners being provided respectively on the front and on the rear of the article and which respectively exert an increasing force tending to oppose the rear extension or the forward bending of the leg enclosed in the rod of the article. These tensioners thus cooperate to bring the position of the foot back to the rest position, thereby relieving the muscles and tendons of the user.
Suivant une autre caractéristique encore de l'invention, des butées éventuellement élastiques, déformables et amortisseurs, sont prévues sur l'empeigne contre lesquelles viennent porter des parties coopérantes de la tige dans des positions respectivement d'extension arrière ou de flexion avant. Ces butées, avantageusement en relation avec les tendeurs sus mentionnés, tendent à empêcher la possibilité que la jambe de l'utilisateur prenne un angle par rapport au pied, qui dépasse les limites autorisées par la physiologie. Selon une autre caractéristique encore de l'invention, au niveau de la ligne de pliage du pied, l'empeigne et/ou la semelle sont réalisées en un matériau souple flexible, lequel vient avantageusement de matière avec le reste de la semelle et/ou de l'empeigne.According to yet another characteristic of the invention, optionally elastic, deformable and shock-absorbing stops are provided on the upper against which the cooperating parts of the rod come to bear in positions of rear extension respectively. or forward bending. These stops, advantageously in relation to the aforementioned tensioners, tend to prevent the possibility that the user's leg takes an angle relative to the foot, which exceeds the limits authorized by physiology. According to yet another characteristic of the invention, at the level of the fold line of the foot, the upper and / or the sole are made of a flexible flexible material, which advantageously comes from material with the rest of the sole and / or of the vamp.
L'invention et sa mise en œuvre apparaîtront plus clairement de la description qui va suivre faite en référence aux dessins annexés dans lesquels :The invention and its implementation will appear more clearly from the description which follows, given with reference to the appended drawings in which:
La figure 1 montre en vue perspective une botte, en fait une botte droite, c'est-à-dire pour pied droit, conforme à l'invention en position fermée d'utilisation ; La figure 2 montre la botte de la figure 1 en position ouverte prête à être chaussée ;Figure 1 shows in perspective view a boot, in fact a straight boot, that is to say for right foot, according to the invention in the closed position of use; Figure 2 shows the boot of Figure 1 in the open position ready to be paved;
La figure 3 montre la botte de la figure 1 dans la position de déformation qu'elle prend lorsque l'utilisateur plie le pied ;Figure 3 shows the boot of Figure 1 in the deformation position it takes when the user folds the foot;
Les figures 4,5 et 6 sont des vues en coupe faites dans un plan transversal passant par le centre de rotation virtuel de la cheville et illustrent respectivement la position de la botte lorsqu'elle est droite, lorsqu'elle est fléchie à gauche et lorsqu'elle est fléchie à droite, ces vues étant faites de devant, c'est-à-dire laissant apparaître le talon ;Figures 4,5 and 6 are sectional views taken in a transverse plane passing through the virtual center of rotation of the ankle and respectively illustrate the position of the boot when it is straight, when it is bent to the left and when 'it is bent to the right, these views being made from the front, that is to say revealing the heel;
La figure 7 est une vue en perspective schématique de la botte illustrée aux figures précédentes dans laquelle on a fait figurer la sphère virtuelle sur laquelle sont formées et glissent les calottes précitées ;Figure 7 is a schematic perspective view of the boot illustrated in the preceding figures in which there has been shown the virtual sphere on which are formed and slide the above caps;
Les figures 8 et 9 montrent de façon schématique comment les mouvements de la tige de la botte peuvent être limités en extension arrière ou en flexion avant ; Les figures 10 et 1 1 montrent la coopération des tendeurs avantageusement prévus sur l'article pour assister les efforts musculaires et coopérer pour la limitation des contraintes en extension et en flexion, selon un premier mode de réalisation.Figures 8 and 9 show schematically how the movements of the boot upper can be limited in rear extension or in front bending; Figures 10 and 1 1 show the cooperation of the tensioners advantageously provided on the article to assist the muscular efforts and cooperate for the limitation of the stresses in extension and in flexion, according to a first embodiment.
La figure 12 montre, vue de devant la botte des figures précédentes, de façon schématique, pour mieux illustrer la coopération de divers éléments qui la constituent ;Figure 12 shows, front view of the boot of the previous figures, schematically, to better illustrate the cooperation of various elements which constitute it;
La figure 13 montre vue de côté et en perspective comment est articulée une partie de l'empeigne sur la semelle ; la figure 14 montre en vue perspective une variante de la réalisation des tendeurs prévus sur l'article pour assister les efforts musculaires et coopérer pour la limitation des contraintes en extension et en flexion ainsi qu'en torsion et flexions latérales ; la figure 15 montre en vue éclatée les pièces principales illustrées à la figure 14 ; la figure 16 montre en vue perspective une variante de réalisation de la coque rigide formant embase ou « chausson » de la botte ; et la figure 17 montre, vue en coupe transversale, la conformation de la pointe de la coque illustrée à la figure 16.Figure 13 shows side view and in perspective how is articulated part of the vamp on the sole; Figure 14 shows in perspective view a variant of the tensioners provided on the article to assist the muscular efforts and cooperate for the limitation of the stresses in extension and in flexion as well as in torsion and lateral flexions; Figure 15 shows an exploded view of the main parts illustrated in Figure 14; FIG. 16 shows in perspective view an alternative embodiment of the rigid shell forming a base or "liner" of the boot; and FIG. 17 shows, seen in cross section, the conformation of the tip of the shell illustrated in FIG. 16.
Selon le mode de réalisation illustré aux dessins et en se référant tout d'abord aux figures 1 et 2, on va décrire et référencer des éléments principaux constitutifs d'un article chaussant tel qu'une botte, dans l'exemple illustré.According to the embodiment illustrated in the drawings and with reference first to Figures 1 and 2, we will describe and reference the main components of a footwear such as a boot, in the example illustrated.
La botte référencée de façon générale 1 comprend : une semelle 2 avec un talon 2a et une pointe 2b sur laquelle est montée une empeigne 3, avec au-dessus une tige 4 formée essentiellement en deux parties 4a, 4b. En 5 on a référencé le dessus de la pointe de la botte, c'est-à-dire l'avant de l'empeigne, et en 6 le bas de la tige au niveau du talon solidaire de la semelle 2. A l'arrière de cette partie 6 on aperçoit également une plaque 7 destinée au renfort du tendon d'Achille, laquelle plaque 7 est articulée sur un axe 8 à la partie arrière 6 basse de la tige. Les deux parties 4a et 4b de la tige sont réunies en position de fermeture par des sangles 9,10 et des crochets 11 ,12. De telles sangles et crochets sont d'utilisation classique dans le domaine, notamment pour les chaussures de ski. Aux mêmes figures on aperçoit également que l'empeigne 3 est articulée sur la semelle 2 autour de pivots respectivement à droite 13, côté intérieur de la botte, et à gauche 14, côté extérieur de la botte, (fig. 13) sensiblement au niveau de la ligne de pliage du pied comme on le voit plus clairement à la figure 3. A la figure 2 et en comparaison avec la figure 1 , on voit que l'empeigne 3 va venir se verrouiller sur la semelle 2 lorsque les crémaillères 15,16 prévues respectivement à droite et à gauche de la semelle 2 sensiblement au niveau du talon et de la voûte plantaire vont venir s'engager dans des dispositifs à cliquet 18,19 prévus respectivement sur le côté droit et sur le côté gauche de l'empeigne 3.The boot generally referenced 1 comprises: a sole 2 with a heel 2a and a point 2b on which is mounted a vamp 3, with above a rod 4 formed essentially in two parts 4a, 4b. In 5 we referenced the top of the tip of the boot, that is to say the front of the upper, and in 6 the bottom of the upper at the heel secured to the sole 2. At the rear of this part 6 there is also a plate 7 intended for the reinforcement of the Achilles tendon, which plate 7 is articulated on an axis 8 at the lower rear part 6 of the rod. The two parts 4a and 4b of the rod are joined in the closed position by straps 9,10 and hooks 11, 12. Such straps and hooks are of conventional use in the field, in particular for ski boots. In the same figures we can also see that the upper 3 is articulated on the sole 2 around pivots respectively on the right 13, inside side of the boot, and on the left 14, outside side of the boot, (fig. 13) substantially at the level from the fold line of the foot as can be seen more clearly in FIG. 3. In FIG. 2 and in comparison with FIG. 1, it can be seen that the upper 3 will come to lock on the sole 2 when the racks 15, 16 provided respectively on the right and on the left of the sole 2 substantially at the level of the heel and the arch of the foot will engage in ratchet devices 18, 19 provided respectively on the right side and on the left side of the vamp 3.
Une caractéristique très avantageuse et très originale de l'invention va maintenant être expliquée. Comme on le voit aux figures 1 et 2, mais en outre plus particulièrement aux figures 4, 5 et 6 et par le schéma de la figure 7, la tige 4, et plus particulièrement la partie avant 4a de la tige est articulée sur l'empeigne 3 du fait de la prévision de calottes de sphère prévues respectivement en regard à la base de la partie 4a de la tige et à la partie supérieure arrière de l'empeigne 3. De façon plus précise, on aperçoit à la figure 7 que les calottes de sphère en question appartiennent à une sphère virtuelle représentée en traits pointillés référencée S. De façon plus précise, on voit aux figures 4,5 et 6 que la partie de tige 4a se termine à sa base par deux calottes respectivement 20,21 à droite sur les figures et 22,23 à gauche sur les figures, venant prendre en sandwich des parties de calotte 24 à droite et 25 à gauche solidaires de l'empeigne 3. Pour assurer une limitation du mouvement de glissement relatif des calottes de la tige sur les calottes de l'empeigne, un axe 26 à droite et 27 à gauche traverse les jeux de calottes conjuguées de la tige et de l'empeigne. L'axe peut être fixé, par exemple riveté à ses deux extrémités sur les calottes de la tige comme il apparaît particulièrement aux figures 4 à 6. Etant donné que les axes 26,27 sont prisonniers mais que les calottes 24,25 de l'empeigne présentent un large trou, comme le voit plus clairement à la figure 13 pour le trou situé à gauche référencé 28 de la calotte 24, il existe une possibilité de débattement de la tige 4 par rapport à l'empeigne 3 et à la semelle 2, c'est-à-dire du bas de la jambe par rapport au pied tout autour du centre virtuel O de la sphère S, et ceci dans toutes les directions, avant, arrière, de côté à gauche et à droite en torsion et mouvements combinés.A very advantageous and very original characteristic of the invention will now be explained. As seen in Figures 1 and 2, but also more particularly in Figures 4, 5 and 6 and by the diagram of Figure 7, the rod 4, and more particularly the front part 4a of the rod is articulated on the upper 3 due to the provision of sphere caps provided respectively opposite the base of part 4a of the rod and the upper rear part of the upper 3. More specifically, it can be seen in FIG. 7 that the sphere caps in question belong to a virtual sphere represented in dotted lines referenced S. More precisely, it can be seen in FIGS. 4,5 and 6 that the rod part 4a ends at its base with two caps respectively 20,21 to right in the figures and 22,23 on the left in the figures, coming to take sandwich portions of cap 24 to the right and 25 to the left integral with the upper 3. To ensure a limitation of the relative sliding movement of the caps of the rod on the caps of the upper, an axis 26 on the right and 27 on the left crosses the sets of combined caps of the upper and the upper. The axis can be fixed, for example riveted at its two ends on the caps of the rod as it appears particularly in Figures 4 to 6. Since the axes 26,27 are trapped but the caps 24,25 of the upper have a large hole, as seen more clearly in Figure 13 for the hole located on the left referenced 28 of the cap 24, there is a possibility of movement of the rod 4 relative to the vamp 3 and the sole 2, that is to say from the bottom of the leg relative to the foot all around the virtual center O of sphere S, and this in all directions, front, back, side to left and right in torsion and combined movements.
Avantageusement, les axes 26,27 et/ou les trous tels que le trou 28 prévu sur la calotte de l'empeigne comprennent sur leurs parties venant buter l'une contre l'autre des moyens amortisseurs de choc et d'effort, tels que par exemple des parties en élastomère. Dans l'exemple illustré aux figures 4 à 6, on a montré de telles butées élastomère sur le pourtour des trous 28,48, référencées 29. Pour limiter le mouvement d'extension en arrière de la jambe par rapport au pied et de même le mouvement de flexion en avant de la jambe par rapport au pied, et comme on le voit plus clairement aux figures 8 et 9 on peut prévoir sur l'empeigne 3 deux butées de chaque côté, à gauche et à droite de l'article chaussant, respectivement 30 pour limiter l'extension arrière et 31 pour limiter la flexion avant, contre lesquelles butées viendront respectivement buter des parties coopérantes de la tige au niveau des repères 32 et 33.Advantageously, the pins 26, 27 and / or the holes such as the hole 28 provided on the cap of the upper include on their parts which abut one against the other shock and force absorbing means, such as for example elastomer parts. In the example illustrated in FIGS. 4 to 6, such elastomeric stops have been shown on the periphery of the holes 28, 48, referenced 29. To limit the extension movement behind the leg relative to the foot and likewise the flexion movement in front of the leg with respect to the foot, and as can be seen more clearly in FIGS. 8 and 9 we can provide on the upper 3 two stops on each side, to the left and to the right of the footwear, respectively 30 to limit the rear extension and 31 to limit the front bending, against which stops will respectively come into contact with cooperating parts of the rod at the marks 32 and 33.
En se reportant maintenant plus particulièrement aux figures 10 et 11 , on aperçoit, travaillant en relation avec la plaque de protection arrière 7 du talon d'Achille et la plaque de protection avant 34, des tendeurs référencés respectivement 35 sur l'arrière et 36 sur l'avant de l'article. Dans la réalisation illustrée il y a un tendeur arrière 35 et deux tendeurs avant 36. Le tendeur arrière 35 se fixe à une extrémité à la plaque de protection 7 et à son autre extrémité au moyen d'une boucle comme on le voit plus clairement à la figure 1 sur un crochet 37 de la sangle 10. Les tendeurs avant 36, comme on le voit plus clairement à la figure 12 se fixent quant à eux à une extrémité à la plaque avant de protection 34 et à leur autre extrémité à une partie haute ou médiane de la partie avant 4a .de la tige en des points référencés 38. Aux figures 10 et 1 1 on observe que la plaque avant de renforcement 34 est articulée à l'empeigne 3 au niveau du cou de pied autour d'un axe référencé 39.Referring now more particularly to FIGS. 10 and 11, we see, working in relation to the rear protective plate 7 of the Achilles heel and the front protective plate 34, tensioners referenced respectively 35 on the rear and 36 on the front of the article. In the illustrated embodiment there is a rear tensioner 35 and two front tensioners 36. The rear tensioner 35 is fixed at one end to the protective plate 7 and at its other end by means of a loop as can be seen more clearly at FIG. 1 on a hook 37 of the strap 10. The front tensioners 36, as can be seen more clearly in FIG. 12 are fixed at one end to the front protective plate 34 and at their other end to an upper or middle part of the front part 4a. of the rod at points referenced 38 In FIGS. 10 and 11, it can be seen that the front reinforcement plate 34 is articulated to the upper 3 at the instep around an axis referenced 39.
Pour permettre le pliage du pied et une bonne sensation de « toucher », comme il apparaît plus clairement aux figures 3, 10 et 11 , l'empeigne 3 et/ou la semelle 2 sont réalisées à ce niveau en matériau souple flexible, par exemple par simple affaiblissement par amincissement à ce niveau de la matière plastique dont sont constituées la semelle et l'empeigne.To allow the folding of the foot and a good feeling of "touching", as it appears more clearly in FIGS. 3, 10 and 11, the upper 3 and / or the sole 2 are made at this level of flexible flexible material, for example by simple weakening by thinning at this level of the plastic material of which the sole and the upper are made.
A partir de la description qui précède on expliquera maintenant le mode de fonctionnement et l'utilisation de l'article chaussant. Par le jeu de l'articulation de la tige 4 de la botte sur l'empeigne 3 au niveau des calottes de sphère qui glissent les unes sur les autres et des axes 26,27 qui jouent dans les trous 28, 48 (fig. 4,5 et 6) il est possible d'obtenir une libre rotation de la jambe par rapport au pied, précisément au niveau de la cheville, sensiblement au niveau du centre O virtuel de rotation de la cheville, suivant un angle de débattement qui est limité par le diamètre extérieur des axes 26,27 et par le diamètre intérieur des trous 28, 48. En prenant soin de prévoir sur les axes 26,27 et/ou sur le bord des trous 28,48 des moyens amortisseurs de choc et d'effort, tel qu'un élastomère, on obtient de la sorte une limitation avec amortissement des mouvements de débattement de la jambe par rapport au pied tout en permettant un libre mouvement à l'intérieur de ces limites.From the foregoing description, the mode of operation and the use of the footwear will now be explained. By the play of the articulation of the rod 4 of the boot on the upper 3 at the level of the sphere caps which slide one on the other and axes 26, 27 which play in the holes 28, 48 (fig. 4 , 5 and 6) it is possible to obtain a free rotation of the leg relative to the foot, precisely at the ankle, substantially at the virtual center O of rotation of the ankle, according to a deflection angle which is limited by the external diameter of the axes 26,27 and by the internal diameter of the holes 28, 48. Taking care to provide on the axes 26,27 and / or on the edge of the holes 28,48 shock absorbing means and effort, such as an elastomer, a limitation is obtained with damping of the movements of movement of the leg relative to the foot while allowing free movement within these limits.
Grâce à l'utilisation des tendeurs tels que 35 et 36, on assure également une limitation de l'effort musculaire de l'utilisateur, en particulier lors d'une extension arrière extrême ou d'une flexion avant extrême. De la même façon les butées 30,31 (fig. 8 et 9) coopèrent avec la tige de la botte pour limiter également l'amplitude de ces mouvements et amortir les chocs dans les conditions extrêmes autorisées par l'article. On observe à ce niveau que les tendeurs 35,36 peuvent également freiner avant de limiter ou arrêter le mouvement d'extension arrière ou de flexion avant, si l'on prévoit par exemple qu'au delà d'une certaine longueur, qu'ils ne sont quasiment plus extensibles.Thanks to the use of tensioners such as 35 and 36, it also ensures a limitation of the muscular effort of the user, in particular during an extreme rear extension or an extreme forward flexion. In the same way, the stops 30, 31 (figs. 8 and 9) cooperate with the upper of the boot. to also limit the amplitude of these movements and absorb shocks under the extreme conditions authorized by the article. It is observed at this level that the tensioners 35, 36 can also brake before limiting or stopping the movement of rear extension or front bending, if it is provided for example that beyond a certain length, that they are almost no longer extensible.
Quant aux plaques de protection respectivement arrière 7 et avant 34, elles assurent une protection efficace respectivement du talon d'Achille et du cou de pied en laissant cependant toute liberté de mouvement au pied dans ces régions du fait de la prévision des articulations telles que référencées 8 et 39.As for the rear 7 and front 34 protection plates respectively, they provide effective protection respectively to the Achilles heel and the instep, while however leaving all freedom of movement to the foot in these regions due to the provision of the joints as referenced 8 and 39.
La souplesse de la semelle et de l'empeigne au niveau de la ligne de pliage du pied laisse à l'utilisateur la liberté de plier les doigts de pied en conservant la sensation de « toucher » favorisant un bon pilotage d'un engin tel qu'une moto.The flexibility of the sole and the vamp at the level of the folding line of the foot gives the user the freedom to bend the toes while retaining the feeling of "touching" favoring good control of a machine such as 'a motorcycle.
Comme on le comprend de la figure 2, le chaussage de la botte est particulièrement commode, puisque l'articulation de l'empeigne 3, au niveau des axes 13,14 et le dégagement total de la partie arrière de la botte permet à l'utilisateur de glisser son pied à plat sur la semelle. Cette opération étant effectuée, l'utilisateur n'a plus qu'à abaisser l'empeigne 3 sur la semelle 2, l'empeigne se verrouillant au moyen des cliquets 18,19 sur les crémaillères 15,16 automatiquement. Ensuite, l'utilisateur peut serrer autour de sa jambe les deux parties 4a et 4b de la tige au moyen des sangles 9,10 et des crochets 11 ,12, puis fixer la boucle du tendeur 35 sur le crochet 37 (fig. 1).As can be understood from FIG. 2, the boot fitting is particularly convenient, since the articulation of the upper 3, at the axes 13, 14 and the total clearance of the rear part of the boot allows the user to slide his foot flat on the sole. This operation being carried out, the user only has to lower the upper 3 on the sole 2, the upper locking by means of the pawls 18,19 on the racks 15,16 automatically. Then, the user can tighten around his leg the two parts 4a and 4b of the rod by means of the straps 9,10 and the hooks 11, 12, then fix the loop of the tensioner 35 on the hook 37 (fig. 1) .
On observe que grâce à l'invention, il est possible de constituer une botte de protection pour moto avec un nombre relativement faible de composants qui pourront tous, ou en majeure partie, être fabriqués en matière plastique de qualité appropriée. Il est en outre possible d'adapter chaque article à la morphologie de l'utilisateur, en particulier par réglage des angles de libre débattement de la tige par rapport à la semelle et à l'empeigne, ainsi que la force des tendeurs.It is observed that thanks to the invention, it is possible to constitute a protective boot for a motorcycle with a relatively small number of components which may all, or for the most part, be made of plastic of suitable quality. It is also possible to adapt each item to the morphology of the user, in particular by adjusting the angles of free movement of the upper relative to the sole and the vamp, as well as the strength of the tensioners.
Bien qu'un mode de réalisation préféré ait été décrit, il est bien entendu que de nombreuses variantes peuvent être apportées sans sortir du cadre de l'invention. En particulier bien qu'on ait décrit un mode de réalisation des calottes de sphère dans lequel deux calottes de tige prennent en sandwich une calotte d'empeigne, on aurait pu adopter une disposition inversée dans laquelle une calotte de la tige aurait été prise entre deux calottes d'empeigne ou bien même qu'une seule calotte de tige coulisse sur une seule calotte d'empeigne. De la même façon bien que l'on ait décrit une réalisation dans laquelle la limitation du mouvement des calottes de sphère les unes sur les autres est obtenue au moyen d'un axe jouant dans un trou de plus grand diamètre que celui de l'axe, d'autres solutions sont possibles, comme par exemple une petite calotte de sphère pouvant se déplacer en étant prisonnière contre et à l'intérieur d'une calotte de sphère un peu plus grande comportant une bordure de limitation de mouvement de la petite calotte dans la grande. L'important est le principe de la rotule ainsi constituée, avec limitation du mouvement de débattement.Although a preferred embodiment has been described, it is understood that many variants can be made without departing from the scope of the invention. In particular, although an embodiment of the sphere caps has been described in which two rod caps sandwich a vamp cap, we could have adopted an inverted arrangement in which a rod cap would have been caught between two vamp caps or even a single rod cap slides over a single vamp cap. In the same way although an embodiment has been described in which the limitation of the movement of the caps of sphere on one another is obtained by means of an axis playing in a hole of larger diameter than that of the axis , other solutions are possible, such as for example a small sphere cap that can move while being trapped against and inside a slightly larger sphere cap having a movement limitation border of the small cap in the big one. The important thing is the principle of the ball joint thus constituted, with limitation of the movement of movement.
Les tendeurs précités ont été illustrés comme étant constitués par des bandes élastiques par exemple en caoutchouc de qualité appropriée ; mais on pourrait utiliser d'autres types de tendeurs, par exemple des ressorts métalliques, pneumatiques, oléopneumatiques de traction ; de la même façon, on pourrait prévoir des ressorts de compression ou de torsion par exemple montés au niveau des butées d'extension 30 et de flexion 31 (fig. 8 et 9).The aforementioned tensioners have been illustrated as being constituted by elastic bands, for example of rubber of suitable quality; but other types of tensioners could be used, for example metal, pneumatic, oleopneumatic traction springs; in the same way, provision could be made for compression or torsion springs, for example mounted at the level of the extension 30 and flexion 31 stops (FIGS. 8 and 9).
Dans les figures on a représenté une botte droite ; bien entendu la botte gauche correspondante sera construite essentiellement comme une image dans un miroir de la botte droite.The figures show a straight boot; of course the corresponding left boot will be constructed essentially as an image in a mirror of the right boot.
En se reportant maintenant aux figures 14 et 15, on a illustré une variante de réalisation des tendeurs qui assistent les efforts musculaires dans les mouvements d'extension et de flexion ainsi qu'en torsion et flexion latérale du pied pour limiter les contraintes. De chaque côté de la botte on trouve ainsi deux tendeurs 50, 51 qui sont accrochés en formant de chaque côté un demi-cercle chaque tendeur étant fixé au point central tel que 51 a (figure 15) sur le côté de la tige 4a et à chaque extrémité telle que 51 b, 51 c sur l'empeigne 3 sous une pièce rapportée 52 solidaire de l'empeigne 3. On observe que de cette façon, tout en réduisant le nombre des pièces utilisées, puisqu'il n'y a plus que deux tendeurs, au lieu de trois dans le mode de réalisation illustré par exemple à la figure 11 , il est possible en fabriquant convenablement les tendeurs en question de fournir des efforts différents parfaitement adaptés pour le mouvement de flexion d'une part et d'extension d'autre part, ainsi que les mouvements de torsions et flexions latérales dits de pronation ou de supination, tout en dégageant la partie supérieure de la tige. Comme on le voit plus clairement à la figure 15, dans l'exemple illustré de réalisation, les tendeurs 50,51 sont en outre pris en sandwich entre une pièce de renfort 4c qui vient sur le devant de la tige et la partie avant 4a de la tige déjà décrite aux figures précédentes.Referring now to Figures 14 and 15, there is illustrated an alternative embodiment of the tensioners which assist muscular efforts in extension and flexion movements as well as in torsion and lateral flexion of the foot to limit stress. On each side of the boot there are thus two tensioners 50, 51 which are hung by forming on each side a semicircle each tensioner being fixed at the central point such as 51 a (Figure 15) on the side of the rod 4a and each end such as 51 b, 51 c on the upper 3 under an attached part 52 secured to the upper 3. It is observed that in this way, while reducing the number of parts used, since there is no longer that two tensioners, instead of three in the embodiment illustrated for example in FIG. 11, it is possible by suitably manufacturing the tensioners in question to provide different forces perfectly suited for the flexion movement on the one hand and extension on the other hand, as well as the movements of torsions and lateral flexions called pronation or supination, while freeing the upper part of the rod. As can be seen more clearly in FIG. 15, in the illustrated embodiment, the tensioners 50, 51 are also sandwiched between a reinforcement piece 4c which comes on the front of the rod and the front part 4a of the rod already described in the previous figures.
Aux figures 14 et 15, on aperçoit clairement les trous 53,54 sur l'avant de l'empeigne 3 pour les axes d'articulation 13,14 sur la semelle, mentionnés aux figures précédentes.In Figures 14 and 15, we can clearly see the holes 53,54 on the front of the upper 3 for the hinge pins 13,14 on the sole, mentioned in the previous figures.
Selon le mode de réalisation illustré à la figure 16 la semelle de la botte comporte une sorte de chausson 55 formé par une coque rigide qui est solidarisée à la semelle ou vient de matière avec elle et qui va permettre de protéger le pied en particulier contre des chocs frontaux. Un léger débattement reste autorisé par un petit jeu prévu entre le collier 56 qui vient surmonter le chausson à hauteur du tiers avant et les fentes latérales 57, 58 dans lesquelles les extrémités du collier y sont retenues, en dessous. En 105 et 106, on a repéré respectivement la pointe et le talon du chausson et en 115 et 1 16 les crémaillères correspondant à celles référencées 15,16, par exemple à la figure 2. En 59 est référencé le trou à droite du chausson 55 dans lequel passera le pivot d'articulation correspondant droit 13 de l'empeigne 3.According to the embodiment illustrated in FIG. 16, the sole of the boot comprises a kind of liner 55 formed by a rigid shell which is integral with the sole or comes in one piece with it and which will make it possible to protect the foot in particular against frontal impacts. A slight clearance is allowed by a small clearance provided between the collar 56 which overcomes the liner at the level of the front third and the side slots 57, 58 in which the ends of the collar are retained there, below. In 105 and 106, the toe and the heel of the boot were respectively identified and in 115 and 116 the racks corresponding to those referenced 15.16, for example in FIG. 2. In 59 is referenced the hole to the right of the boot 55 in which will pass the corresponding right articulation pivot 13 of the upper 3.
Comme on le voit à la figure 17, la face inférieure de la pointe 105 de la coque du chausson est avantageusement conformée comme illustré aux dessins avec des alvéoles 60, 61 , 62 et notamment une alvéole 62 plus large sensiblement au-dessous de l'articulation des phalanges du pied, laquelle alvéole est ouverte en son milieu et comporte deux parties relevées 63, 64 qui viennent buter l'une contre l'autre. On conçoit que de la sorte la coque du chausson peut s'ouvrir relativement facilement dans le sens de la flèche F1 pour permettre de relever les orteils, autrement dit de plier normalement le pied, en s'opposant au contraire à une rotation en sens inverse dans le sens de la flèche F2, par exemple à la suite d'un choc sur l'extrémité supérieure des phalanges.As can be seen in FIG. 17, the underside of the tip 105 of the shell of the liner is advantageously shaped as illustrated in the drawings with cells 60, 61, 62 and in particular a cell 62 which is wider substantially below the articulation of the phalanges of the foot, which socket is open in the middle and has two raised parts 63, 64 which abut one against the other. It is understood that in this way the shell of the liner can be opened relatively easily in the direction of the arrow F1 to allow the toes to be raised, in other words to bend the foot normally, while opposing opposite rotation in the opposite direction. in the direction of arrow F2, for example following a shock on the upper end of the phalanges.
On observe que lorsqu'on utilise un tel chausson, la protection arrière du mollet, référencée 4b (voir notamment figures 1 et 2) peut être solidaire du chausson.It is observed that when such a boot is used, the rear protection of the calf, referenced 4b (see in particular FIGS. 1 and 2) can be secured to the boot.
Pour réaliser une botte confortable convenant à diverses pointures, on utilisera avantageusement des rayons de calotte sphérique pour réaliser l'articulation de l'invention avec des dimensions comprises entre environ 70 mm et 100 mm pour les plus petites pointures et entre environ 100 mm et 130 mm pour les plus grandes pointures ; en outre, la calotte côté interne de la botte pourra avoir un rayon de courbure légèrement différent de celui de la calotte côté externe, ceci pour une meilleure conformation à la morphologie d'un pied. Selon une variante de réalisation, au lieu d'utiliser des calottes parfaitement sphériques, on pourra avantageusement les déformer pour que le rayon de courbure varie depuis le centre vers la périphérie, par exemple en se réduisant vers la périphérie, de sorte que par cette disposition on obtiendra une variation de l'effort pour faire tourner les deux calottes l'une sur l'autre, l'effort grandissant au fur et à mesure que l'inclinaison par rapport à la position centrale de départ se modifie. Cette disposition peut également être traitée de façon asymétrique, de façon à obtenir une rotation plus facile dans le sens du mouvement de flexion/extension, et plus dure dans le sens latéral afin de mieux protéger le pied. La variation du rayon de courbure pourra être avantageusement de l'ordre de 0% (calotte de sphère parfaite) à par exemple 10%.To make a comfortable boot suitable for various sizes, we will advantageously use spherical cap spokes to make the joint of the invention with dimensions between approximately 70 mm and 100 mm for the smallest sizes and between approximately 100 mm and 130 mm for larger sizes; in addition, the cap on the inner side of the boot may have a radius of curvature slightly different from that of the cap on the outer side, this for a better conformation to the morphology of a foot. According to an alternative embodiment, instead of using perfectly spherical caps, it is advantageously possible to deform them so that the radius of curvature varies from the center towards the periphery, for example by reducing towards the periphery, so that by this arrangement we will obtain a variation of the effort to rotate the two caps one on the other, the effort increasing as the inclination relative at the central starting position changes. This arrangement can also be treated asymmetrically, so as to obtain an easier rotation in the direction of the flexion / extension movement, and harder in the lateral direction in order to better protect the foot. The variation in the radius of curvature could advantageously be of the order of 0% (perfect sphere cap) to, for example, 10%.
La résistance à la libre rotation des calottes l'une sur l'autre pourra également être réglée par l'espacement plus ou moins grand qui pourra être laissé entre les calottes et qui pourra par exemple être de l'ordre de quelques dixièmes de millimètre à 1 ou 2 mm. The resistance to the free rotation of the caps one on the other can also be adjusted by the more or less large spacing which can be left between the caps and which can for example be of the order of a few tenths of a millimeter to 1 or 2 mm.

Claims

REVENDICATIONS
1. Article chaussant de protection tel qu'une botte ou analogue, utilisable en particulier dans le domaine de la moto et des sports en général, susceptible de permettre une bonne liberté de mouvement du pied tout en le protégeant ainsi que le bas de la jambe contre les chocs et efforts de torsion divers, caractérisé en ce que, solidaires de l'empeigne(3), sensiblement à la hauteur de la cheville sont prévues de chaque côté, gauche et droit de l'article, au moins une calotte(24,25) sensiblement de sphère contre laquelle glisse intérieurement et/ou extérieurement une autre calotte(20-23) de sphère solidaire de chaque côté, gauche et droit de l'article, de la tige(4) de l'article, des moyens étant prévus qui limitent les mouvements relatifs de glissement des calottes solidaires de l'empeigne contre les calottes solidaires de la tige. 1. Protective footwear such as a boot or the like, usable in particular in the field of motorcycles and sports in general, capable of allowing good freedom of movement of the foot while protecting it as well as the lower leg against impact and various torsional forces, characterized in that, integral with the vamp (3), substantially at the height of the ankle, are provided on each side, left and right of the article, at least one cap (24 , 25) substantially sphere against which slides internally and / or externally another cap (20-23) of sphere integral on each side, left and right of the article, the rod (4) of the article, means being provided which limit the relative sliding movements of the caps secured to the vamp against the caps secured to the rod.
2. Article chaussant selon la revendication 1 , caractérisé en ce que lesdites calottes(20-25) de sphère ont toutes sensiblement le même centre de rotation (O)situé sensiblement au centre virtuel de rotation de la cheville d'un pied chaussé dudit article.2. Footwear according to claim 1, characterized in that said sphere caps (20-25) all have substantially the same center of rotation (O) located substantially at the virtual center of rotation of the ankle of a foot wearing said article .
3. Article chaussant selon la revendication 1 ou la revendication 2, caractérisé en ce que lesdits moyens de limitation de mouvement des calottes sont constitués pour chaque jeu de calottes glissant l'une contre l'autre, par un trou central(28,48) formé dans une calotte solidaire de l'empeigne ou de la tige et par un axe(26,27) solidaire de la tige ou de l'empeigne se déplaçant avec du jeu dans ledit trou. 3. Footwear according to claim 1 or claim 2, characterized in that said means for limiting the movement of the caps are constituted for each set of caps sliding against one another, by a central hole (28,48) formed in a cap integral with the upper or the rod and by an axis (26,27) integral with the rod or the upper moving with play in said hole.
4. Article chaussant selon la revendication 3, caractérisé en ce que lesdits moyens de limitation de mouvement des calottes sont constitués pour chaque jeu de calottes glissant l'une contre l'autre, par un trou central(28,48) formé dans la calotte(24,25) solidaire de l'empeigne(3) et par un axe(26,27) solidaire de deux caiottes(20-23) solidaires de la tige(4) prenant en sandwich ladite calotte(24,25) d'empeigne, ledit axe(26,27) se déplaçant avec du jeu dans ledit trou(28,48).4. Footwear according to claim 3, characterized in that said means for limiting the movement of the caps are constituted for each set of caps sliding against one another, by a central hole (28,48) formed in the cap (24.25) secured to the vamp (3) and by an axis (26.27) secured to two shells (20-23) secured to the rod (4) sandwiching said cap (24.25) of upper, said axis (26,27) is moving with play in said hole (28,48).
5. Article chaussant selon la revendication 3 ou la revendication 4, caractérisé en ce que ledit axe(26,27) et/ou lesdits trous(28,48) comprennent sur leurs parties venant buter l'une contre l'autre des moyens amortisseurs(29) de choc et d'effort.5. Footwear according to claim 3 or claim 4, characterized in that said axis (26,27) and / or said holes (28,48) comprise on their parts abutting one against the other damping means (29) shock and effort.
6. Article chaussant selon l'une des revendications précédentes, caractérisé en ce que l'empeigne(3) est articulée sur la semelle(2) de l'article sensiblement au niveau de l'axe de pliage du pied chaussé dudit article et se verrouille et déverrouille de chaque côté sensiblement vers l'arrière de la voûte plantaire.6. Footwear according to one of the preceding claims, characterized in that the upper (3) is articulated on the sole (2) of the article substantially at the level of the folding axis of the foot wearing said article and is locks and unlocks on each side substantially toward the rear of the arch.
7. Article chaussant selon la revendication 6, caractérisé en ce que le verrouillage et le déverrouillage de l'empeigne(3) sur la semelle(2) se font au moyen de deux dispositifs de type à crémaillère(15,16) et cliquet(18,19) verrouillables et déverrouillables manuellement, chaque crémaillère s'engageant automatiquement avec son cliquet coopérant par simple abaissement de l'empeigne(3) sur la semelle(2) par dessus le pied qui a été engagé sur ladite semelle.7. Footwear according to claim 6, characterized in that the locking and unlocking of the vamp (3) on the sole (2) is done by means of two devices of the rack type (15,16) and ratchet ( 18,19) manually lockable and unlockable, each rack engaging automatically with its pawl cooperating by simply lowering the vamp (3) on the sole (2) over the foot which has been engaged on said sole.
8. Article chaussant selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte des tendeurs(35,36 ; 50,51 ) dont une extrémité est fixée sur la tige(4) à une certaine hauteur de la semelle(2) et dont l'autre extrémité est fixée sur l'empeigne(3) ou sur une pièce(7,34 ; 52) qui y est fixée, lesdits tendeurs exerçant respectivement un effort croissant tendant à s'opposer à l'extension arrière ou à la flexion avant de la jambe enserrée dans la tige de l'article. 8. Footwear according to any one of the preceding claims, characterized in that it comprises tensioners (35,36; 50,51), one end of which is fixed to the upper (4) at a certain height from the sole ( 2) and the other end of which is fixed on the upper (3) or on a part (7,34; 52) which is fixed therein, said tensioners respectively exerting an increasing force tending to oppose the rear extension or by forward bending of the leg enclosed in the upper of the article.
9. Article chaussant selon l'une quelconque des revendications précédentes, caractérisé en ce que des butées(30,31 ) éventuellement élastiques, déformables et amortisseurs, sont prévues sur l'empeigne(3) contre lesquelles viennent porter des parties coopérantes de la tige(4) dans les positions respectivement d'extension arrière ou de flexion avant. 9. Footwear according to any one of the preceding claims, characterized in that stops (30,31) possibly elastic, deformable and shock absorbers are provided on the vamp (3) against which come cooperating parts of the upper (4) in the rear extension or front bending positions respectively.
10. Article chaussant selon l'une quelconque des revendications précédentes, caractérisé en ce que des renforts de protection(7,34) sont prévus respectivement sur le devant, articulés au cou de pied de l'empeigne(3) et sur l'arrière, articulés vers la tige(4) au niveau du talon(2a).10. Footwear according to any one of claims previous, characterized in that protective reinforcements (7,34) are provided respectively on the front, articulated to the instep of the vamp (3) and on the rear, articulated towards the rod (4) at the level of the heel (2a).
11. Article chaussant selon les revendications 8 et 10, caractérisé en ce que les tendeurs(35,36) ont une de leurs extrémités ancrée vers une partie supérieure ou médiane de la tige(4) et leur autre extrémité fixée sur lesdits renforts(7,34).11. Footwear according to claims 8 and 10, characterized in that the turnbuckles (35,36) have one of their ends anchored towards an upper or middle part of the upper (4) and their other end fixed on said reinforcements (7 , 34).
12. Article chaussant selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au niveau de la ligne de pliage du pied l'empeigne et/ou la semelle sont réalisées en matériau souple flexible.12. Footwear according to any one of the preceding claims, characterized in that at the fold line of the foot the vamp and / or the sole are made of flexible flexible material.
13. Article chaussant selon l'une quelconque des revendications précédentes, caractérisé en ce que la tige(4) est formée en deux parties(4a,4b) qui s'articulent l'une sur l'autre sur un côté dégageant complètement, en position d'ouverture, la partie avant qui reçoit le tibia. 13. Footwear according to any one of the preceding claims, characterized in that the upper (4) is formed in two parts (4a, 4b) which are articulated one on the other on a completely free side, in open position, the front part which receives the shin.
14. Article chaussant selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte un chausson (55) comportant une coque protégeant le pied sur le dessus des phalanges et limitant le mouvement inverse de rabattement des phalanges.14. Footwear according to any one of the preceding claims, characterized in that it comprises a liner (55) comprising a shell protecting the foot on top of the phalanges and limiting the reverse movement of folding of the phalanges.
15. Article chaussant selon la revendication 14, caractérisé en ce que la coque comporte un collier (56) de protection supérieur à hauteur du tiers avant qui est monté avec un léger jeu de débattement dans des fentes latérales (57,58).15. Footwear according to claim 14, characterized in that the shell has a collar (56) of protection greater than the height of the front third which is mounted with a slight clearance in the side slots (57,58).
16. Article chaussant selon la revendication 14 ou la revendication 15, caractérisé en ce que la pointe (105) de la coque du chausson (55) comporte à sa base des alvéoles dont l'une au moins (62) peut s'ouvrir dans un sens (F1 ) de relèvement mais n'autorise pas un pliage dans le sens inverse (F2) vers le bas. 16. Footwear according to claim 14 or claim 15, characterized in that the tip (105) of the shell of the boot (55) has at its base cells, at least one of which (62) can open in a lifting direction (F1) but does not allow folding in the opposite direction (F2) downwards.
EP00979735A 1999-11-16 2000-11-15 Protective footwear, such as a boot or the like Revoked EP1229808B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9914385 1999-11-16
FR9914385A FR2800976B1 (en) 1999-11-16 1999-11-16 PROTECTIVE FOOTWEAR, SUCH AS BOOTS OR THE LIKE
PCT/FR2000/003171 WO2001035781A1 (en) 1999-11-16 2000-11-15 Protective footwear, such as a boot or the like

Publications (2)

Publication Number Publication Date
EP1229808A1 true EP1229808A1 (en) 2002-08-14
EP1229808B1 EP1229808B1 (en) 2004-09-01

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EP00979735A Revoked EP1229808B1 (en) 1999-11-16 2000-11-15 Protective footwear, such as a boot or the like

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EP (1) EP1229808B1 (en)
AT (1) ATE274811T1 (en)
AU (1) AU1712801A (en)
DE (1) DE60013473T2 (en)
ES (1) ES2226950T3 (en)
FR (1) FR2800976B1 (en)
WO (1) WO2001035781A1 (en)

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IT202100015383A1 (en) * 2021-06-11 2022-12-11 Dainese Spa Motorcycle boot

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IT202100015383A1 (en) * 2021-06-11 2022-12-11 Dainese Spa Motorcycle boot

Also Published As

Publication number Publication date
DE60013473D1 (en) 2004-10-07
DE60013473T2 (en) 2005-09-29
AU1712801A (en) 2001-05-30
ES2226950T3 (en) 2005-04-01
WO2001035781A1 (en) 2001-05-25
EP1229808B1 (en) 2004-09-01
FR2800976A1 (en) 2001-05-18
ATE274811T1 (en) 2004-09-15
FR2800976B1 (en) 2002-03-22

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