Classifications

• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B7/00—Footwear with health or hygienic arrangements
  • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
  • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
  • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
  • A43B7/1425—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the ball of the foot, i.e. the joint between the first metatarsal and first phalange
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
  • A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B7/00—Footwear with health or hygienic arrangements
  • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B7/00—Footwear with health or hygienic arrangements
  • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
  • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
  • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
  • A43B7/144—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone

Definitions

• the subject of the present invention is a device for supporting a foot in a sport and / or leisure shoe, and a method for obtaining this device.
• orthopedic soles are intended to modify the balance of the articular chains by recreating arches that have collapsed.
• Such soles, called corrective, are very little used for the practice of sport, because they are traumatic.
• proprioceptive incorporate extra thickness intended to stimulate or inhibit the plantar receptors and modify a parasitic muscular tension or a posturostatic imbalance.
• Document FR-A.2286 638 relates to an orthopedic sole for correcting the internal rotation of the feet in young children.
• This sole has a first wedge extending at the level of the proximal part of the first metatarsus and behind this part and a second wedge extending in the extension of the first, towards the rear of the sole, always on the edge side. inside of it. In such a case, it is a question of exercising a permanent corrective action.
• the document US-A.2 884 719 describes a sole or a device integrated into a shoe intended to treat metatarsalgia by trying to distribute the loads to avoid a too punctual support.
• This device comprises a wedge extending in the central and proximal area of the first metatarsal as well as in the proximal parts of the second and third metatarsal.
• Document US-A.2 660 814 describes a shoe sole intended to distribute the loads by using a large number of wedges, including essentially a wedge under the first three metatarsals and a wedge in the shape of a horseshoe supporting the arch. plantar and surrounding the outside of the heel.
• thermoformable insoles called physiological, and molded directly on the foot, very appreciated on the sporty, because they increase the support surface and therefore give greater comfort.
• This biomechanical movement of the foot is accompanied by a rotation of the leg axis formed by the tibia and the fibula.
• the supination causing the external rotation of the leg skeleton and the pronation causing the internal rotation of the leg skeleton, the balance between these rotations and the counter-rotation generated by the support on the ground is mainly regulated by the long lateral peroneal muscle.
• extreme support such as those resulting from the sports indicated above, and repeated support, often appear ligament and tendon irritations due to muscle fatigue which can manifest in the form of cramps.
• the long lateral peroneal muscle stressed beyond its usual amplitude, loses its role in pronos supinator control, reducing the expected performance.
• the object of the invention is to provide a device for supporting a foot in a sports or leisure shoe, which aims not to correct a shape of the foot but to brake and control a pressure gradually bearing on an area precise foot.
• the device which it relates to comprises in combination a suspension element arranged in the area serving the support of the distal end of the first metatarsal head of the foot and a transverse suspension element, placed in the medio-tarsal zone, enveloping the anterior part of the heel.
• the suspension element serving to support the first metatarsal head is placed in the zone used more precisely to support the phalango-bisesamoid cradle in which the first metatarsal head encrusted with cartilage is articulated.
• this suspension element When practicing a sport, such as skiing, skating or golf, or even during certain running movements, this suspension element has the function of controlling the pressure of the foot and controlling the sagging of the forefoot when the support is there during the pre-propulsive phase, in order to relieve the long peroneal lateral muscle and to keep it fully effective.
• suspension elements do not concern the lateral metatarsal rays which constitute the kinetic braking zone of the foot, but only the first metatarsal ray which is the only propellant and the only one to have active plantar flexion.
• the presence of a suspension element in the mid-tarsal zone enveloping the anterior part of the heel makes it possible, in association with the suspension element located in the support zone of the distal end of the first metatarsal head, to achieve the tensioning of the plantar fascia by dorsiflexion of the big toe, known as "Windlass Mechanism". This results in a facilitation of the passive locking system and an increase in the bearing surfaces.
• the suspension elements have a thickness of the order of 2 to 8 mm and are made of a flexible viscoelastic or elastic memory material, such as, for example, Ethylene Vinyl Acetate EVA with a shore hardness of between 20 and 50 and of a density greater than 70 kg / m 3 , or of polyethylene with a shore hardness between 60 and 140 and a density greater than 100 kg / m 3 .
• EVA Ethylene Vinyl Acetate
• polyethylene with a shore hardness between 60 and 140 and a density greater than 100 kg / m 3 .
• suspension elements are not traumatic and can be suitable for different foot shapes of the same size, they can be compatible with an industrial production system, that the suspension elements are arranged on the underside of a sole. inside of the shoe or on the upper face of the bottom of a shoe.
• the density and thickness of the suspension elements are chosen according to the size, the activity practiced and possibly the weight of the user.
• the support device in the case of a golf shoe, can be completed by a mediotarsal suspension element extended along the inner edge of the heel, in order to promote postural balance and the placement of the hips, and d '' orient the load transfer during the passage from adaptive eversion to stiffening inversion.
• the suspension elements can also be arranged on the upper face of the sole, or on the bottom of the shoe, on the upper face of the latter or on its lower face resting on the ground.
• the suspension elements can be formed not by a flexible material, but by suspended areas of a preformed sole.
• the suspension element has a longitudinal groove for housing the long flexor proper of the first toe.
• the method for obtaining the support device as mentioned above comprises the step of molding this device on the user's foot or on a shape reproducing this foot.
• Figure 1 is a perspective view from below of this sole
• Figures 2 and 3 are two cross-sectional views respectively along lines II-II and III-III of Figure 1;
• Figure 4 is a very schematic top view of another sole, the suspension elements which it comprises, and the skeleton of a foot;
• Figures 5 and 6 are sectional views along lines VV and VI-VI of Figure 4;
• Figure 7 is a longitudinal sectional view of the sole of Figure 4, along the line VII-VII of Figure 4;
• Figure 8 is a longitudinal sectional view along line VIII-VIII of Figure 4 of the sole and the corresponding part of the foot.
• Figure 1 shows a sole, designated by the general reference 2, made, for example, of a thermoformable material to adopt the general shape of the underside of a foot and provide satisfactory support thereof.
• this sole has a suspension element 3 in the area intended to serve as a support for the distal end of the first metatarsal head 6 of the foot.
• This suspension element 3 is used more precisely to support the phalango-bisesamoid cradle 7 in which the first metatarsal head is articulated.
• This suspension element is made of a flexible material with elastic memory, in order to quickly return to its initial shape after being compressed.
• the thickness of the suspension element is of the order of 3 to 6 mm. Given its flexibility, this suspension element does not harm the comfort of the shoe equipped with such a sole.
• the suspension element placed under the sole can be made of EVA or polyethylene, for example, the densities of which have been indicated above.
• FIGS. 1 to 3 which is particularly suitable for equipping a shoe for golfing, also includes a transverse mediotarsal suspension element 4 enveloping the front part of the heel under the median axis of the foot, provided with an extension 5 towards the rear of the inner side of the heel.
• This suspension element 4, 5 combined with the suspension element 3 promotes postural balance and movement of the hips and directs the transfer of load during the passage from adaptive eversion to inversion of stiffening by ensuring the tensioning of plantar fascia by dorsiflexion of the big toe.
• the suspension element 3 anticipates and limits the overload of the foot during the pre-propulsive support phase and keeps the long lateral peroneal muscle all its effectiveness, and avoids ligament and tendon irritations due to muscle fatigue which can manifest in the form cramps. It should be noted that the suspension elements 3, 4 do not concern the 2 nd to 5 th metatarsals 8 and therefore do not intervene on the corresponding kinetic braking zone.
• Figures 4 to 8 show another sole in which the same elements are designated by the same references as above.
• the suspension element 4, 5 is located on the upper face of the sole, and a damping element 9, known per se, is arranged under the sole at the heel.
• this support device for the foot could not be associated with an inner sole of a shoe, but at the very bottom of the shoe, or else that the suspension elements could be constituted by suspended zones of the sole. without departing from the scope of the invention.

Landscapes

• Health & Medical Sciences (AREA)
• Epidemiology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Passenger Equipment (AREA)
• Socks And Pantyhose (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9510064

Family Applications (1)

Country Status (8)

Cited By (2)

Families Citing this family (9)

Citations (7)

• 1997
  • 1997-07-31 FR FR9710043A patent/FR2766673B1/fr not_active Expired - Fee Related
• 1998
  • 1998-07-31 ES ES98941516T patent/ES2170520T3/es not_active Expired - Lifetime
  • 1998-07-31 CA CA002296747A patent/CA2296747C/fr not_active Expired - Fee Related
  • 1998-07-31 DE DE69804336T patent/DE69804336T2/de not_active Expired - Lifetime
  • 1998-07-31 AT AT98941516T patent/ATE214558T1/de not_active IP Right Cessation
  • 1998-07-31 WO PCT/FR1998/001716 patent/WO1999005927A1/fr not_active Ceased
  • 1998-07-31 EP EP98941516A patent/EP1021102B1/fr not_active Expired - Lifetime
  • 1998-07-31 JP JP2000504756A patent/JP2001511375A/ja active Pending

Patent Citations (7)

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