Classifications

• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B13/00—Soles; Sole-and-heel integral units
  • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
  • A43B13/12—Soles with several layers of different materials
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B13/00—Soles; Sole-and-heel integral units
  • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
  • A43B13/10—Metal
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B3/00—Footwear characterised by the shape or the use
  • A43B3/0036—Footwear characterised by the shape or the use characterised by a special shape or design
  • A43B3/0052—X-shaped or cross-shaped

Definitions

• the present invention relates to the technical field of shoes, and more particularly to the field of footwear for all types of sports.
• Such shoes are subjected to significant mechanical stresses, in particular during the practice of sports where mass transfers on the lateral raises are frequent, of the tennis, golf, basketball, football or other type.
• the present invention relates more particularly to a sole intended for such shoes, because it is it which collects extreme stresses and stresses, while ensuring optimal comfort for the wearers of these shoes.
• shoe soles for example for sports shoes comprising a sole whose external face is intended to come into contact with the ground and whose internal face is intended to come into contact with the foot of a user.
• Shoes are also known which are equipped with such a sole, further housing a dynamic member which is elastically deformable.
• the document EP 0 516 874 describes a shoe, the front part of the sole of which is provided with an insert, of the Belleville washer type, making it possible to store and restore energy during walking.
• Such a sole is in no way suitable for the aforementioned sports, in which the lateral stresses of the sole and of the shoe are extremely more intense and distributed in a different manner than in a conventional walking shoe, such as that described in this document. .
• the object of the present invention is to provide a sole for a shoe intended for extreme uses, in which the lateral supports of said sole are highly stressed, so as to assist the return of the sole and of the foot to a substantially normal position. or antagonist by decreasing the energy losses in the changes of lateral supports of the forefoot.
• the footwear of the aforementioned type is essentially characterized in that the sole comprises a dynamic assistance member comprising at least two elements or parts elastically deformable, making it possible to store and restore energy during lateral stresses of said sole, said dynamic assistance member being positioned in the sole so as to extend at least partly under an area corresponding to the part front of the foot, so as to obtain a dynamic interaction between the two elements or elastically deformable parts, in the event of stress on said sole, and to obtain respectively and in correspondence two lateral support points on the ground, located on either side other of the longitudinal axis of the shoe.
• a dynamic assistance member comprising at least two elements or parts elastically deformable, making it possible to store and restore energy during lateral stresses of said sole, said dynamic assistance member being positioned in the sole so as to extend at least partly under an area corresponding to the part front of the foot, so as to obtain a dynamic interaction between the two elements or elastically deformable parts, in the event of stress on said sole, and to obtain respectively and in correspondence two lateral support points on the ground
• the dynamic assistance member comprises a stimulating plate, positioned in the sole so as to extend at least in part under an area corresponding to the arch of the foot, and at least in part under an area corresponding to the front part of the foot, so as to obtain a dynamic interaction between the two parts of the sole thus defined.
• the two support elements or parts are linked or arranged on the recovery plate.
• the dynamic assistance member comprises at least one set of two support elements or parts, arranged longitudinally on either side of the metatarsal support area.
• the recovery plate comprises at least four branches, for example defining an X shape, each of the branches coming to bear on a shoe.
• the four branches are interconnected.
• the four branches are linked in pairs to form two independent pairs.
• each shoe is an attached compressible part.
• the plate has a central part extending longitudinally with respect to a longitudinal axis (L) of the sole, the arms extending obliquely towards the pads from said central part.
• the central part has a transverse groove, located in said sole at the level of the zone corresponding to the positioning of the metatarsus, thus allowing elastic deformation of the plate along an axis substantially normal to the longitudinal axis.
• the plate has at least locally extra thicknesses.
• the extra thicknesses are for example made of elastic material and are locally thinned.
• the lateral supports constitute supports two to two antagonists.
• the dynamic member is a stimulating plate with shape memory.
• the plate is fixed by gluing to the internal face of the external layer.
• the recovery plate is located between the outer layer and an intermediate layer which are at least locally separated.
• the branches of the recovery plate have for example come together as a whole.
• the recovery plate comprises at least one V-shaped part.
• Footwear or footwear comprising a sole extending in a longitudinal direction, from an anterior end to a posterior end, the external face of which is arranged so as to come into contact with the ground, and the internal face of which is arranged to support directly the foot, characterized in that said sole comprises a member for dynamic assistance in the lateral movement of the foot in any transverse direction relative to the longitudinal direction, said member being arranged at least in the front part of the foot and extending in a direction perpendicular to the plane of the sole, or thickness thereof, between the external face (including the latter) and the internal face (including the latter) of said sole, said member comprising at least two elements or support parts of the front part of the foot, arranged in the front part of the sole respectively on either side of the longitudinal direction, and aligned in a transverse direction, each support element being elastically deformable in a direction perpendicular to the plane of the sole, below (compression) and beyond (relaxation) of a conformation or nominal position under the effect of the body weight via the foot,
• the support elements or parts are independent of each other.
• the support elements or parts are mechanically integral.
• the sole structure is a multi-component structure.
• the structure of the sole is a one-piece structure
• An advantage of the shoe according to the invention lies in mechanical assistance to the reactivity of the forefoot.
• the shoe according to the present invention thus allows dynamic lateral assistance to the reactivity of the forefoot, by promoting easier and faster recovery during support phases.
• the dynamic organ makes it possible to react, at the level of the forefoot, the support parts on the ground in opposition. On either side of the metatarsal support area, the support parts are thus for one compressed, for the other relaxed.
• the dynamic organ advantageously provides better control of the forefoot forces when changing lateral supports. The player feels his support better so that he can better control it.
• the present invention makes it possible to obtain greater speed when changing lateral supports, the assistance being amplified.
• the sole of the shoe according to the present invention also provides better horizontal stability of the forefoot, by improving the suspension of the foot.
• FIG. 1 is a perspective view of a shoe or footwear for racket sport provided with a sole according to the present invention.
• FIG. 2 is an exploded view of an exemplary embodiment of the sole according to the invention.
• FIG. 3 is a bottom view of the sole of Figure 2.
• FIG. 4 is a section along line IV IV of Figure 3.
• FIG. 5 is a section along the line V V of Figure 3.
• FIGS. 6 and 7 are schematic representations of an example of operation of a dynamic member of a sole according to the invention.
• FIGS. 8 to 11 are respectively perspective and cross-sectional views of the dynamic member according to two variants according to the present invention.
• the shoe 10 or footwear according to the present invention shown in perspective in Figure 1 is a shoe more particularly intended to be used during the practice of sports such as tennis, squash, golf, or even badminton.
• sports such as tennis, squash, golf, or even badminton.
• the shoe 10 according to the present invention can be used for other sports, without restriction.
• the shoe 10 incorporates a sole as shown in Figure 2 and which comprises for example an outer layer 1.
• the latter comprises an outer face 1a intended to come into contact with the ground and an inner face 1b.
• the external face 1a can be covered with different coatings capable of improving its adhesion to the ground.
• the sole extends between a front end 20 and a rear end 30, in a longitudinal direction L.
• the sole of Figure 1 also includes an intermediate layer 2 intended to be positioned on the outer layer 1, and on which is positioned a complementary sole called cleanliness (not shown).
• This intermediate layer has an internal face 2b intended to come into contact with the foot of the user.
• the outer layer 1 can also be provided locally with rising edges 1c, 1d between which the intermediate layer 2 is positioned.
• the dynamic member takes the form of a recovery plate 3 positioned in the sole, at a level which is a function of the internal structure of the sole.
• this plate is independent of the number of strata entering into the composition of the sole, only the fact that the player can rest on this plate during his game, and in particular during the lateral revival movements.
• the recovery plate 3 provides a dynamic assistance member of the sole.
• Such a dynamic member makes it possible to store and restore energy resulting from significant mechanical stresses and stresses on the shoe and consequently on the sole, that is to say during the lateral movement of the foot in a transverse direction T substantially perpendicular to the longitudinal direction L.
• the recovery plate 3 is for example fixed by gluing on the internal face 1b.
• the intermediate layer 2 is attached to the outer layer 1, and more particularly fixed to the inner face 1a of the latter, so as to produce the sole according to the invention.
• the outer layer 1 and the intermediate layer 2 are at least locally separated, in particular in the vicinity of the recovery plate 3.
• the intermediate layer 2 is fixed on the outer layer 1 at a part 1e forming the heel of the sole and at the periphery or rising edges 1c, 1d of a front part 1f.
• the recovery plate 3, shown in particular in Figures 2 and 3, has four branches 4, 5, 6 and 7 connected together and defining for example an X shape. Each of the branches 4, 5, 6 and 7 comes to bear on a skate 4a,
• the pads 4a, 5a, 6a and 7a thus define four lateral support zones on the ground, on the internal face 1b.
• Each shoe 4a, 5a, 6a and 7a is for example made up of a compressible piece attached to the internal face 1b. (See Figures 5 and 6).
• each of the pads can be produced by a slight deformation, overthickness or release of material in the internal face 1b, serving to position the ends of the branches 4, 5, 6 and 7 respectively.
• the pads 4a to 7a can alternatively not be located below the branches, but be located above the branches of the plate.
• the recovery plate 3 preferably has a central part 8 extending longitudinally with respect to a longitudinal axis L of the sole.
• the branches 4, 5, 6 and 7 extend obliquely towards the corresponding pads 4a, 5a, 6a and 7a, from said central part 8.
• the branches 4 to 7 extend on either side of the longitudinal axis defined by the support area of the metatarsus so that the pads are located on either side of this axis. It is thus defined two pairs of pads, one constituted by the pads 4a and 5a, and the other by the pads 6a and 7a. Inside each of these pairs, the pads interact in opposition to allow the lateral recovery of the foot.
• the pads can also be considered as supporting elements or zones. They can be either independent of each other, or mechanically integral.
• the central part 8 also has a transverse groove 9, extending in the sole, following an area corresponding to the positioning of the metatarsus, when the recovery plate 3 is fixed on the internal face 1b.
• This groove ⁇ thus authorizes an elastic deformation of the recovery plate 3, along an axis substantially normal to the longitudinal axis L and coincides with said groove 9.
• the recovery plate 3 also has, according to an exemplary embodiment, extra thicknesses 3a.
• the extra thicknesses 3a are made of a material whose elasticity allows deformation during the compression of one or more several of the branches 4 to 7, and promotes the return to the initial position.
• the extra thicknesses are for example thinned in the central part or else curved to favor the compression / expansion function of the recovery plate.
• This compression / expansion function can also be promoted by multiplying the lateral support points, for example by increasing the number of branches of the recovery plate. This makes it possible to obtain an increasingly local reaction to the stresses, and even a certain progressiveness in this reaction. This function can also be obtained by providing recesses in the recovery plate.
• the outer layer 1 is for example provided with openings 10 and 11, in which engage and position the extra thicknesses 3a.
• the openings 10 and 11 can advantageously be covered or filled with a transparent material, making it possible to visualize, through the external layer 1, at least part of the recovery plate 3.
• the external layer 1 can also be provided with complementary transparent zones, facing the pads 4a, 5a, 6a and 7a or the ends of the branches 4, 5, 6, 7, so as to view from the external face. 1a, the zones corresponding to the lateral supports.
• the recovery plate 3 is for example metallic or made from a high performance plastic material, or alternatively from composite materials.
• the intermediate layer 2, as well as the outer layer 1 are for example made of rubber.
• the sole can for example be of one-piece structure so that the dynamic assistance member is embedded in one of the layers or strata of the sole, or in the single layer.
• the intermediate layer 2 can be provided with lights situated opposite the branches 4, 5, 6, 7, in which are inserts made of highly deformable and elastic materials (for example of the elastomer, polyurethane type. .).
• the inserts of complementary shape to the lights preferably have identical or similar shapes to the shapes of the branches 4, 5, 6 and 7.
• the sole can be reduced to a single layer, for example consisting only of the outer layer 1 and the recovery plate as well as the pads are embedded therein.
• Figures 6 and 7 show the operation of the recovery plate 3.
• the recovery plate 3 extends in a substantially planar manner as shown in FIG. 6.
• the branch 7 is elastically deformed according to arrow D and compresses the pad 7a.
• the branch 5 deforms elastically and antagonistically along the arrow and relaxes the pad 5a.
• the pad 6a opposite the pad 7a is released.
• the pad 4a can be compressed. The player can thus not only cause lateral stresses on the dynamic organ, but also stresses along the diagonal of this organ.
• the sole thus accompanies the movement of the foot, in particular when the latter exerts lateral supports on the sole.
• the energy stored thanks to the stress on the recovery plate 3 makes it possible to assist the foot for a return to another position or to a rest position as soon as the aforementioned lateral supports cease.
• Each lateral support exerted by the foot can thus have repercussions on one of the branches 4, 5, 6, 7 and can thus be assisted by the operation of the recovery plate 3.
• the branches 4 to 7 of the recovery plate 3 have for example come together as a whole.
• the recovery plate is obtained by fixing one on the other, two V-shaped parts mounted in opposition.
• the dynamic assistance member can be produced with any type of material with elastic properties and take any geometric shape adapted to the sport practiced with the shoe.
• the structure of this member must make it possible to produce at least two opposing lateral supports located on either side of the longitudinal axis L of the shoe, and located in the front part of the sole.
• the dynamic assistance member 40 comprises constituent parts situated in the direction of the thickness of the sole. It thus has two parts 41, 42 in the form of a V, the respective branches 43, 44 and 45, 46 of which are located one above the other.
• the dynamic member 50 also consists of two pairs 51, 52 of branches which are spaced apart. one of the other, and which are V-shaped whose respective bases 53, 54 extend over a certain width.
• the pads 47 and 48 are located along the longitudinal edges of the shoe, in the front part of the sole.
• the sole of the shoe according to the present invention thus makes it possible to facilitate lateral recovery by reducing the energy losses in the changes of lateral supports of the forefoot.
• the player has better control of the solicitation efforts of the forefoot since he feels his support better.
• the horizontal stability of the forefoot is improved by better suspension.
• the dynamic organ provides greater speed when changing lateral supports by amplifying assistance in the recovery.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

Applications Claiming Priority (3)

Publications (1)

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• 2002
  • 2002-09-09 FR FR0211134A patent/FR2844156B1/fr not_active Expired - Fee Related
• 2003
  • 2003-09-09 EP EP03769600A patent/EP1536711B1/de not_active Expired - Lifetime
  • 2003-09-09 AU AU2003278291A patent/AU2003278291A1/en not_active Abandoned
  • 2003-09-09 WO PCT/FR2003/002681 patent/WO2004021820A1/fr not_active Ceased
  • 2003-09-09 WO PCT/FR2003/002679 patent/WO2004021818A1/fr not_active Ceased
  • 2003-09-09 AU AU2003278293A patent/AU2003278293A1/en not_active Abandoned
  • 2003-09-09 US US10/526,399 patent/US7370443B2/en not_active Expired - Lifetime
  • 2003-09-09 AT AT03769600T patent/ATE394044T1/de not_active IP Right Cessation
  • 2003-09-09 JP JP2004533583A patent/JP4405391B2/ja not_active Expired - Fee Related
  • 2003-09-09 AU AU2003278292A patent/AU2003278292A1/en not_active Abandoned
  • 2003-09-09 CN CNB038213273A patent/CN100500042C/zh not_active Expired - Fee Related
  • 2003-09-09 DE DE60320804T patent/DE60320804D1/de not_active Expired - Lifetime
  • 2003-09-09 ES ES03769600T patent/ES2306898T3/es not_active Expired - Lifetime
  • 2003-09-09 US US10/527,022 patent/US7434337B2/en not_active Expired - Lifetime
  • 2003-09-09 WO PCT/FR2003/002680 patent/WO2004021819A1/fr not_active Ceased
  • 2003-09-09 EP EP03769601A patent/EP1555906A1/de not_active Withdrawn

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