FR2614510A1 - Sole incorporating a pump for ventilating the shoe - Google Patents

Sole incorporating a pump for ventilating the shoe Download PDF

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Publication number
FR2614510A1
FR2614510A1 FR8706157A FR8706157A FR2614510A1 FR 2614510 A1 FR2614510 A1 FR 2614510A1 FR 8706157 A FR8706157 A FR 8706157A FR 8706157 A FR8706157 A FR 8706157A FR 2614510 A1 FR2614510 A1 FR 2614510A1
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FR
France
Prior art keywords
sole
pump
pads
compressible
shoe
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.)
Withdrawn
Application number
FR8706157A
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French (fr)
Inventor
Gerard Biotteau
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.)
Technisynthese SARL
Original Assignee
Technisynthese SARL
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
Application filed by Technisynthese SARL filed Critical Technisynthese SARL
Priority to FR8706157A priority Critical patent/FR2614510A1/en
Publication of FR2614510A1 publication Critical patent/FR2614510A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A43B17/026—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient filled with a non-compressible fluid, e.g. gel, water
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/06—Footwear with health or hygienic arrangements ventilated

Abstract

The present invention relates to a sole incorporating, in the bearing zone of the heel, a pump 3 for ventilating the shoe. According to the invention, under the bearing surface located at the periphery of the pump 3, pads 8, made from a material which is much more compressible than the mass of the sole 2, are incorporated, the compressible pads 8 are preferably distributed in the form of a plurality of volumes 8a, b, c which are independent in order to prevent transmission of the compression pressure between them, and the arch support also incorporates a pad 12 made from compressible material. The invention increases the capacity of the pump and improves the comfort of the shoe.

Description

Semelle incorporant une pompe d'aération de la chaussure.Sole incorporating a shoe ventilation pump.

On a déjà proposé dans de nombreux brevets tels que FR-A-1.024.960,
FR-A-854.986, etc. d'incorporer dans une semelle une cavité qui refoule, lors de la mise en appui du pied, une partie du volume d'air qu'elle contient à l'intérieur de la tige de la chaussure, l'aspiration de l'air, généralement l'air extérieur, pour remplir le volume utile de la pompe s'effectuant lors du soulèvement du pied sous l'effet de l'élasticité propre de l'enceinte constituant la pompe, de l'élasticité du matériau constituant la semelle dans laquelle est noyée ladite enceinte ou de ressorts prévus dans ou autour de la pompe.We have already proposed in numerous patents such as FR-A-1,024,960,
FR-A-854.986, etc. incorporating into a sole a cavity which drives back, when the foot is supported, part of the volume of air it contains inside the upper of the shoe, the suction of air, generally the outside air, to fill the useful volume of the pump taking place during the lifting of the foot under the effect of the own elasticity of the enclosure constituting the pump, of the elasticity of the material constituting the sole in which said enclosure is embedded or springs provided in or around the pump.

Le fonctionnement d'une telle pompe et son incorporation dans une semelle, notamment réalisée par moulage d'une matière thermoplastique ou d'un caoutchouc synthétique, posent des problèmes techniques. Si le matériau constitutif de la semelle est compressible et réalisé par exemple en mousse de plastique, la semelle va théoriquement s'affaisser suffisamment sous l'effet de la pression du pied pour autoriser une variation de volume appréciable de la cavité constituant la pompe. Une telle semelle n'assure toutefois pas, du fait de sa compressibilité importante, un appui suffisamment stable pour le pied et il y a des risques de compression dissymétrique avec basculement latéral.En outre la cavité constituant la pompe tend à s'étaler par enfoncement de ses parois latérales en meme temps qu'elle perd de la hauteur de sorte que son volume varie moins que-proportionnellement à sa perte de hauteur.The operation of such a pump and its incorporation into a sole, in particular produced by molding a thermoplastic material or a synthetic rubber, pose technical problems. If the constituent material of the sole is compressible and made for example of plastic foam, the sole will theoretically collapse sufficiently under the effect of the pressure of the foot to allow an appreciable variation in volume of the cavity constituting the pump. However, because of its high compressibility, such a sole does not provide a sufficiently stable support for the foot and there is a risk of asymmetrical compression with lateral tilting. Furthermore, the cavity constituting the pump tends to spread by depression of its side walls at the same time as it loses height so that its volume varies less than-in proportion to its loss of height.

Ayant probablement observé ce phénomène, US-A-3.225.463 a proposé d'insérer dans la couche de la semelle se trouvant au-dessus de la cavité un insert en dôme aplati ayant une flexibilité sensiblement moindre que celle de la couche surmontant la cavité formant pompe et de placer également, en-dessous de ladite cavité, un insert moins flexible qui a pour but de maintenir la cavité formant la pompe dans sa configuration d'origine. La solution de US-A-3.225.463 ne s'applique pas à une semelle en un matériau relativement rigide et le volume de pompage est toujours défini par la réduction d'épaisseur, sous la pression du pied, de la masse de matériau constituant la semelle.Having probably observed this phenomenon, US-A-3,225,463 has proposed to insert into the layer of the sole located above the cavity a flattened dome insert having a significantly less flexibility than that of the layer surmounting the cavity forming a pump and also placing, below said cavity, a less flexible insert which aims to maintain the cavity forming the pump in its original configuration. The solution of US-A-3,225,463 does not apply to a sole made of a relatively rigid material and the pumping volume is always defined by the reduction in thickness, under the pressure of the foot, of the mass of material constituting the sole.

La présente invention a pour but de résoudre les divers problèmes ci-dessus rappelés que l'on rencontre dans les semelles incorporant une cavité de pompage dont la variation de volume sous la presion du pied doit être aussi importante que possible.The object of the present invention is to solve the various problems mentioned above which are encountered in the soles incorporating a pumping cavity whose volume variation under the pressure of the foot must be as large as possible.

L'invention a en conséquence pour objet une semelle incorporant, dans la zone d'appui du talon, une pompe d'aération de la chaussure caractérisée en ce que, sous la surface d'appui située à la périphérie de la pompe, sont incorporés des coussinets en un matériau présentant une plus grande compressibilité que la masse de la semelle.The invention therefore relates to a sole incorporating, in the heel support zone, a shoe ventilation pump, characterized in that, beneath the support surface located at the periphery of the pump, are incorporated pads made of a material having greater compressibility than the mass of the sole.

Avec la réalisation conforme à l'invention, le degré d'enfoncement de la paroi supérieure délimitant le volume de la pompe sera fonction de la compressibilité des coussinets et la pression développée dans leur masse s' opposera à une dilatation transversale de l'enceinte constituant la pompe. En outre le matériau de la semelle qui entoure la pompe et les coussinets ayant une bonne stabilité dimensionnelle sous la pression du pied, en fait une stabilité dimensionnelle identique à celle des semelles classiques, les coussinets seront également maintenus contre un fluage latéral susceptible de provoquer un mauvais appui du pied.With the embodiment according to the invention, the degree of depression of the upper wall delimiting the volume of the pump will depend on the compressibility of the bearings and the pressure developed in their mass will oppose a transverse expansion of the enclosure constituting the pump. In addition, the material of the sole which surrounds the pump and the pads having good dimensional stability under the pressure of the foot, makes it a dimensional stability identical to that of conventional soles, the pads will also be maintained against a lateral creep likely to cause a poor foot support.

Selon un mode de réalisation préférentiel les coussinets compressibles sont répartis en une pluralité de volumes indépendants pour éviter une transmission entre eux de la pression de compression. Cette caractéristique évite un déplacement de la matière compressible les constituant de la zone la plus comprimée vers la zone moins comprimée avec le basculement en résultant de la partie de la semelle de propreté surmontant la pompe et les coussinets, basculement qui nuirait au confort.According to a preferred embodiment, the compressible pads are distributed in a plurality of independent volumes to avoid transmission between them of the compression pressure. This characteristic avoids a displacement of the compressible material constituting them from the most compressed zone towards the less compressed zone with the tilting resulting from the part of the insole overcoming the pump and the pads, tilting which would harm comfort.

Du fait de la présence des coussinets compressibles conformes à l'invention, le calcaneum va venir, lors de la mise en appui du pied, occuper une position plus basse de quelques millimètres que celle dans une semelle classique en le même matériau sans coussinets compressibles. Si donc la semelle comporte comme souvent une partie renflée formant soutien de voûte plantaire, ce soutien de voûte plantaire va former un mamelon en saillie anormale entre les deux zones avant et arrière d'appui du pied et il va en résulter une pression accrue sous la zone métatarsienne, pression accrue qui nuira au confort. Pour y remédier et conformément à l'invention, le soutien de voûte plantaire incorpore également un coussinet en un matériau compressible.Due to the presence of the compressible pads according to the invention, the calcaneum will come, when the foot is pressed, occupy a position a few millimeters lower than that in a conventional sole made of the same material without compressible pads. If the sole therefore often has a bulging part forming an arch support, this arch support will form an abnormally projecting nipple between the two front and rear support zones of the foot and this will result in increased pressure under the metatarsal area, increased pressure which will affect comfort. To remedy this and in accordance with the invention, the arch support also incorporates a pad of compressible material.

Selon un mode de réalisation préférentiel et pour faciliter leur mise en place dans le moule d'injection de la semelle, les enceintes constituant la pompe et les coussinets compressibles sont solidaires pour former un insert unique.According to a preferred embodiment and to facilitate their installation in the injection mold of the sole, the chambers constituting the pump and the compressible pads are integral to form a single insert.

Les enceintes constituant les coussinets peuvent être remplis de gaz compressible, ce gaz pouvant éventuellement être incorporé dans une mousse. On peut également envisager de les remplir d'un liquide ou d'un gel mais, ces substances étant incompressibles, les enceintes formant les coussinets seront alors de préférence en communication avec une enceinte non noyée dans la semelle, de préférence des enceintes formant poches logées dans la partie de la tige emboîtant la partie arrière du pied comme décrit dans le brevet de la demanderesse FR-A-2.472.364, les sections de passage des communications entre chambres étant suffisamment grandes pour ne pas freiner le déplacement du liquide ou du gel.The chambers constituting the bearings can be filled with compressible gas, this gas possibly being able to be incorporated into a foam. One can also consider filling them with a liquid or a gel but, these substances being incompressible, the speakers forming the pads will then preferably be in communication with an enclosure not embedded in the sole, preferably speakers forming housed pockets. in the part of the rod fitting the rear part of the foot as described in the applicant's patent FR-A-2,472,364, the cross-sections of the communications between chambers being large enough not to slow the movement of the liquid or the gel .

La pompe peut être de tout type connu.The pump can be of any known type.

On décrira ci-après un exemple de réalisation de l'invention avec référence au dessin ci-annexé dans lequel:
La figure 1 est une vue en coupe longitudinale de la
chaussure; la figure 2 est une vue en plan de la partie
arrière de la semelle montrant la disposition des
coussinets et la figure 3 en est une vue en coupe trans
versale.An exemplary embodiment of the invention will be described below with reference to the attached drawing in which:
Figure 1 is a longitudinal sectional view of the
shoe; Figure 2 is a plan view of the part
rear of the sole showing the arrangement of
pads and Figure 3 is a trans sectional view
versal.

Dans les dessins, la référence 1 désigne la tige et la référence 2 la semelle en matière plastique moulée par injection, la matière de la semelle pouvant etre du chlorure de polyvinyle, du polou- réthane,du caoutchouc synthétique, etc.In the drawings, the reference 1 designates the upper and the reference 2 the injection molded plastic sole, the sole material being polyvinyl chloride, polyurethane, synthetic rubber, etc.

Dans le moule a été placé avant l'injection, pour être noyé dans la partie de la semelle correspondant au talon,un élément central 3 ayant de préférence une forme à peu près cylindrique et fermé à sa partie supérieure par une membrane souple. et convexe 4.In the mold was placed before injection, to be embedded in the part of the sole corresponding to the heel, a central element 3 preferably having an approximately cylindrical shape and closed at its upper part by a flexible membrane. and convex 4.

L'élément central est relié à l'extérieur de la semelle par un conduit 5 débouchant par une valve 6 munie ou non d'un clapet d'obturation; cet élément 3 permet d'aspirer l'air à l'intérieur de la cavité et de le refouler 9 l'intérieur de la tige par exemple à travers l'orifice 7 obturé par une membrane, non représentée, réalisée en une matière légèrement perméable à l'air, de fa çon à permettre à l'air aspiré de se diffuser également à l'inté-* rieur de la chaussure pendant la marche.The central element is connected to the outside of the sole by a conduit 5 opening out through a valve 6 with or without a shutter valve; this element 3 makes it possible to draw the air inside the cavity and to discharge it 9 inside the rod, for example through the orifice 7 closed by a membrane, not shown, made of a slightly permeable material in the air, so as to allow the air sucked in to also diffuse inside the shoe during walking.

Plusieurs coussinets 8 sont répartis autour de l'élément central décrit ci-dessus et séparés de celui-ci au moyen de cloisons étanches telles que des soudures 9. Ces coussinets forment des chambres indépendantes étanches. Les chambres 8a, 8b et 8c sont réparties autour de l'élément central 3 de façon qu en s'écrasant sous la force d'appui du talon, elles permettent un enfoncement de la partie supérieure de l'élément central 3 obturé par la membrane 6 malgré la stabilité de forme relative de l'ensemble de la semelle 2.Several pads 8 are distributed around the central element described above and separated from it by means of watertight partitions such as welds 9. These pads form independent sealed chambers. The chambers 8a, 8b and 8c are distributed around the central element 3 so that when they are crushed under the bearing force of the heel, they allow the upper part of the central element 3 to be closed closed by the membrane 6 despite the relative shape stability of the entire sole 2.

Dans le mode de réalisation illustré, les coussinets 8a et 8b sont remplis d'un gaz compressible et le coussinet 8c d'un liquide pour mettre en oeuvre simultanément l'objet de FR-A-2.472.354. In the illustrated embodiment, the pads 8a and 8b are filled with a compressible gas and the pad 8c with a liquid to simultaneously implement the object of FR-A-2,472,354.

A cet effet le coussinet 8c est relié par un conduit large 10 à une chambre 11 qui emboîte la partie arrière du pied, le liquide chassé de la chambre 8 gonfle la chambre 11 qui maintient, comme exposé dans le brevet ci-dessus, le talon emboîté dans le contrefort de talon. Bien évidemment la chambre 8c pourrait également être limitée à la surface d'appui du talon et etre remplie d'un gaz compressible.To this end, the pad 8c is connected by a wide conduit 10 to a chamber 11 which fits the rear part of the foot, the liquid expelled from the chamber 8 inflates the chamber 11 which maintains, as explained in the above patent, the heel nested in the heel counter. Obviously the chamber 8c could also be limited to the bearing surface of the heel and be filled with a compressible gas.

Un coussinet 12 est également prévu dans le soutien de voûte plantaire 13 pour que la déformation par compression de ce coussinet assure un soutien élastique de la voûte plantaire et évite l'apparition d'un point dur sous le métatarse lors de l'affaissement par compresion de l'élément central 5 et des coussinets 8. A pad 12 is also provided in the arch support 13 so that the compression deformation of this pad ensures elastic support of the arch and prevents the appearance of a hard point under the metatarsus during collapse by compression. of the central element 5 and of the bearings 8.

Claims (7)

RevendicationsClaims 1. Une semelle incorporant, dans la zone d'appui du talon, une pompe (3) d'aération de la chaussure, caractérisée en ce que, sous la surface d'appui située à la périphérie de la pompe (3), sont incorporés des coussinets (8) en un matériau présentant une plus grande compressibilité que la masse de la semelle (2).1. A sole incorporating, in the heel bearing zone, a shoe ventilation pump (3), characterized in that, under the bearing surface situated at the periphery of the pump (3), are incorporated pads (8) made of a material having greater compressibility than the mass of the sole (2). 2. Une semelle selon la revendication 1, caractérisée en ce que les coussinets compressibles (8) sont répartis en une pluralité de volumes (8a,b,c) indépendants pour éviter une transmission entre eux de la pression de compression.2. A sole according to claim 1, characterized in that the compressible pads (8) are distributed in a plurality of independent volumes (8a, b, c) to avoid transmission between them of the compression pressure. 3. Une semelle selon l'une quelconque des revendications 1 à 2, caractériséeen ce que le soutien de voûte plantaire incorpore également un coussinet (12) en un matériau compressible.3. A sole according to any one of claims 1 to 2, characterized in that the arch support also incorporates a pad (12) made of a compressible material. 4. Une semelle selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les enceintes constituant la pompe (3) et les coussinets compressibles (8) sont solidaires pour former un insert unique.4. A sole according to any one of claims 1 to 3, characterized in that the chambers constituting the pump (3) and the compressible pads (8) are integral to form a single insert. 5. Une semelle selon l'une quelconque des revendications l à 4, caractérisée en ce que les coussinets (8) sont remplis d'un gaz compressible.5. A sole according to any one of claims l to 4, characterized in that the pads (8) are filled with a compressible gas. 6. Une semelle selon la revendication 5, caractérisée en ce que le gaz compressible est incorporé dans une mousse.6. A sole according to claim 5, characterized in that the compressible gas is incorporated in a foam. 7. Une semelle selon l'une quelconque des revendications 1 à 4, caractérisée en ce que certains (8c) des coussinets sont remplis d'un fluide non compressible, l'enceinte formant le coussinet étant en communication avec une enceinte (11) non noyée dans la semelle. 7. A sole according to any one of claims 1 to 4, characterized in that some (8c) of the pads are filled with a non-compressible fluid, the enclosure forming the pad being in communication with an enclosure (11) not drowned in the sole.
FR8706157A 1987-04-30 1987-04-30 Sole incorporating a pump for ventilating the shoe Withdrawn FR2614510A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8706157A FR2614510A1 (en) 1987-04-30 1987-04-30 Sole incorporating a pump for ventilating the shoe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8706157A FR2614510A1 (en) 1987-04-30 1987-04-30 Sole incorporating a pump for ventilating the shoe

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FR2614510A1 true FR2614510A1 (en) 1988-11-04

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Cited By (38)

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US4995173A (en) * 1989-04-13 1991-02-26 Leonard Cooper High tech footwear
US4999932A (en) * 1989-02-14 1991-03-19 Royce Medical Company Variable support shoe
US5035068A (en) * 1989-11-09 1991-07-30 The Wind Pro Corporation Shoe and removable shoe insole system
US5179792A (en) * 1991-04-05 1993-01-19 Brantingham Charles R Shoe sole with randomly varying support pattern
US5333397A (en) * 1993-02-12 1994-08-02 Red Wing Shoe Company, Inc. Inflatable ventilating insole
US5416988A (en) 1989-03-17 1995-05-23 Nike, Inc. Customized fit shoe and bladder therefor
US5425184A (en) 1993-03-29 1995-06-20 Nike, Inc. Athletic shoe with rearfoot strike zone
US5595004A (en) * 1994-03-30 1997-01-21 Nike, Inc. Shoe sole including a peripherally-disposed cushioning bladder
WO1997001971A1 (en) * 1995-07-06 1997-01-23 Bayer Aktiengesellschaft Ventilated walking shoe
US5625964A (en) 1993-03-29 1997-05-06 Nike, Inc. Athletic shoe with rearfoot strike zone
US5771606A (en) * 1994-10-14 1998-06-30 Reebok International Ltd. Support and cushioning system for an article of footwear
US6354020B1 (en) 1999-09-16 2002-03-12 Reebok International Ltd. Support and cushioning system for an article of footwear
US6374514B1 (en) 2000-03-16 2002-04-23 Nike, Inc. Footwear having a bladder with support members
US6385864B1 (en) 2000-03-16 2002-05-14 Nike, Inc. Footwear bladder with controlled flex tensile member
US6402879B1 (en) 2000-03-16 2002-06-11 Nike, Inc. Method of making bladder with inverted edge seam
US6430843B1 (en) 2000-04-18 2002-08-13 Nike, Inc. Dynamically-controlled cushioning system for an article of footwear
US6453577B1 (en) 1996-02-09 2002-09-24 Reebok International Ltd. Support and cushioning system for an article of footwear
US6457262B1 (en) 2000-03-16 2002-10-01 Nike, Inc. Article of footwear with a motion control device
US6505420B1 (en) 1996-02-09 2003-01-14 Reebok International Ltd. Cushioning member for an article of footwear
US6553690B2 (en) 1999-08-04 2003-04-29 Opal Limited Ventilated footwear
US6571490B2 (en) 2000-03-16 2003-06-03 Nike, Inc. Bladder with multi-stage regionalized cushioning
USD485426S1 (en) 2002-08-16 2004-01-20 Opal Limited Insole
US6742287B2 (en) * 2002-03-05 2004-06-01 Aqua Lung America, Inc. Dive boot purge system
US6745499B2 (en) 2002-05-24 2004-06-08 Reebok International Ltd. Shoe sole having a resilient insert
US6871421B2 (en) 2001-09-21 2005-03-29 Daniel R. Potter Footwear with bladder type stabilizer
US7051456B2 (en) * 2003-07-29 2006-05-30 Nike, Inc. Article of footwear incorporating an inflatable chamber
US7210249B2 (en) 2001-06-21 2007-05-01 Nike, Inc. Footwear with bladder filter
US7409779B2 (en) 2005-10-19 2008-08-12 Nike, Inc. Fluid system having multiple pump chambers
US7451554B2 (en) 2005-10-19 2008-11-18 Nike, Inc. Fluid system having an expandable pump chamber
US7707745B2 (en) 2003-07-16 2010-05-04 Nike, Inc. Footwear with a sole structure incorporating a lobed fluid-filled chamber
US7707744B2 (en) 2003-07-16 2010-05-04 Nike, Inc. Footwear with a sole structure incorporating a lobed fluid-filled chamber
US7774955B2 (en) 2005-10-03 2010-08-17 Nike, Inc. Article of footwear with a sole structure having fluid-filled support elements
US7810255B2 (en) 2007-02-06 2010-10-12 Nike, Inc. Interlocking fluid-filled chambers for an article of footwear
US7930839B2 (en) 2004-02-23 2011-04-26 Reebok International Ltd. Inflatable support system for an article of footwear
US7950169B2 (en) 2007-05-10 2011-05-31 Nike, Inc. Contoured fluid-filled chamber
US8540838B2 (en) 2005-07-01 2013-09-24 Reebok International Limited Method for manufacturing inflatable footwear or bladders for use in inflatable articles
US8572786B2 (en) 2010-10-12 2013-11-05 Reebok International Limited Method for manufacturing inflatable bladders for use in footwear and other articles of manufacture
US8657979B2 (en) 2003-12-23 2014-02-25 Nike, Inc. Method of manufacturing a fluid-filled bladder with a reinforcing structure

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FR2109206A5 (en) * 1970-10-07 1972-05-26 Lordat Louis Victor
US4224746A (en) * 1979-02-01 1980-09-30 Kim Sunyong P Shoe ventilating insole
FR2515938A1 (en) * 1981-11-06 1983-05-13 Ouin Andre Shoe with ventilated sole - has suction and conveyor ducts from outside air to shoe interior, with pumping pocket between them

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4999932A (en) * 1989-02-14 1991-03-19 Royce Medical Company Variable support shoe
US5416988A (en) 1989-03-17 1995-05-23 Nike, Inc. Customized fit shoe and bladder therefor
US4995173A (en) * 1989-04-13 1991-02-26 Leonard Cooper High tech footwear
US5035068A (en) * 1989-11-09 1991-07-30 The Wind Pro Corporation Shoe and removable shoe insole system
US5179792A (en) * 1991-04-05 1993-01-19 Brantingham Charles R Shoe sole with randomly varying support pattern
US5333397A (en) * 1993-02-12 1994-08-02 Red Wing Shoe Company, Inc. Inflatable ventilating insole
US6055746A (en) 1993-03-29 2000-05-02 Nike, Inc. Athletic shoe with rearfoot strike zone
US5625964A (en) 1993-03-29 1997-05-06 Nike, Inc. Athletic shoe with rearfoot strike zone
US5425184A (en) 1993-03-29 1995-06-20 Nike, Inc. Athletic shoe with rearfoot strike zone
US7475498B2 (en) 1994-01-26 2009-01-13 Reebok International Ltd. Support and cushioning system for an article of footwear
US8434244B2 (en) 1994-01-26 2013-05-07 Reebok International Limited Support and cushioning system for an article of footwear
US7181867B2 (en) 1994-01-26 2007-02-27 Reebok International Ltd. Support and cushioning system for an article of footwear
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