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 racket sports.
• Such shoes are subjected to significant mechanical stresses, in particular when playing tennis, badminton, squash or the like.
• 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 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 sports of the tennis or squash type, in which the stresses on the sole and the shoe are extremely more intense and distributed differently 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 in which the lateral supports are less stressed.
• the article of footwear of the aforementioned type is essentially characterized in that the sole comprises a dynamic member making it possible to store and restore energy during lateral stresses of said sole, comprising on the one hand a plate stimulus, 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 partly under an area corresponding to the front part of the foot, and on the other hand at least two parts of lateral support on the ground, elastically deformable, located longitudinally on both sides and d other from a metatarsal support area.
• the recovery plate comprises four branches defining for example 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.
• the pads are located above the recovery plate.
• the pads are located below the recovery plate.
• the pads are located on and in the vicinity of the periphery of an internal face of an external layer of the sole, so as to define four areas of support on the ground on the internal face.
• 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 two V-shaped parts mounted in opposition.
• 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.
• Another object of the present invention is to provide a shoe comprising a sole having one of the aforementioned characteristics.
• 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.
• - Figure 5 is a section along 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.
• FIG 8 is a bottom view of a variant of the sole according to the present invention.
• the shoe 10 or footwear for racket sports according to the present invention shown in perspective in FIG. 1 is a shoe more particularly intended to be used during the practice of sports such as tennis, squash or even badminton, that is to say, sports for which the sportsman uses a racket.
• 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 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.
• the function of 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 providing a dynamic member of the sole.
• a dynamic member makes it possible to store and restore energy resulting from significant mechanical stresses and stresses on the shoe and therefore on the sole.
• 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 corresponding shoe 4a, 5a, 6a and 7a, located on and in the vicinity of the periphery of the internal face 1b.
• 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 made 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.
• 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 longitunidal 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. Thus, when the shoe 4a is compressed, the opposite shoe 5a is released and vice versa. It is the same for the pair of pads 6a and 7a.
• 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 9 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 a deformation during the compression of one or more 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 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. .). These inserts with their elastic properties improve the recovery of the forefoot.
• the inserts of complementary shape to the lights preferably have shapes identical or similar to the shapes of the branches 4, 5, 6 and 7.
• the sole can be reduced to a single layer, for example being made up only of the outer layer 1 and the recovery plate as well as the pads are embedded therein.
• FIGS 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 shoe 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 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 two V-shaped parts are independent of each other.
• the two branches 4 ′ and 5 ′ on the one hand, and the two branches 6 ′ and 7 ′ on the other hand constitute two independent pairs mutually spaced in the forefoot.

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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 (2)

Family

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Family Applications (2)

Family Applications After (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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