EP0948270B1 - Footwear with air circulation and method of manufacture - Google Patents
Footwear with air circulation and method of manufacture Download PDFInfo
- Publication number
- EP0948270B1 EP0948270B1 EP97913281A EP97913281A EP0948270B1 EP 0948270 B1 EP0948270 B1 EP 0948270B1 EP 97913281 A EP97913281 A EP 97913281A EP 97913281 A EP97913281 A EP 97913281A EP 0948270 B1 EP0948270 B1 EP 0948270B1
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- EP
- European Patent Office
- Prior art keywords
- outsole
- footwear
- heel
- return valve
- chamber
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- 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.)
- Expired - Lifetime
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- 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
- A43B7/08—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures
- A43B7/081—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures the air being forced from outside
Definitions
- the present invention relates to an article of footwear with air circulation and its manufacturing process.
- an article of footwear comprising an air circulation device suitable for exhaust air from inside the footwear outward of said footwear.
- This article footwear has a outsole in which is formed a compressible cavity at the front and rear.
- the compressible cavities are obtained in the sole wear, for example, by molding thereof.
- the cavity compressible in the front part is made open towards the inside of the footwear while the cavity compressible in the heel is closed so present only an air intake from the front part of the sole and an air outlet to outside.
- This compressible cavity is generally closed by sticking a sock in the article fit.
- closing the compressible chamber of the heel is made by the establishment of the sole of cleanliness on the outsole. It can ensue after a certain period of use of the footwear, a loss of tightness in the compressible cavity heel, thereby reducing the effectiveness of the air circulation, for example by wear of the insole.
- the present invention offers an article of footwear with air circulation in which the air circulation device is totally integrated into the sole and this, economically, limiting the number of elements constituting said device air circulation.
- an article of footwear incorporating in the heel and / or the sole at least one cavity connected, by a variable throttle valve, to ambient air so that the cavity acts as adjustable air cushion, spring and / or shock absorber.
- This device is not intended to carry out a circulation air but only to produce a damping effect.
- the subject of the present invention is an article footwear with a molded outsole, a insole provided with perforations in its part front and a upper, said outsole comprising at minus a compressible chamber in its open front part towards the inside of the footwear and at least one compressible chamber in the heel provided with at least one first non-return valve not allowing the passage of that towards the outside of the footwear, the compressible chamber in the front part being connected to the compressible heel chamber via a conduit comprising a second non-return valve allowing air circulation only from front to back of the outsole, characterized in that the sole wear is molded so as to include at least one cavity front, precursor of the compressible chamber (5) in the part front, and at least one rear cavity, precursor of the chamber compressible (4) in the heel, said cavities being open on the upper face of the outsole (2), the outsole (2) has a comfort layer overmolded on said outsole, outsole and comfort layer defining between them the compressible chambers, the comfort layer covering the rear cavity of the outsole while the front cavity
- a sole of a footwear item decomposing into a outsole in its part lower with a layer of comfort in its part upper, outsole and comfort layer defining between them the compressible chambers of the air circulation device, the only elements added from said device which can be the conduit provided its non-return valve ensuring the passage of air from the front part towards the rear part of the outsole as well as the non-return valve installed in the compressible heel chamber to allow expulsion of the air out of said chamber to the outside of the article fit.
- each cavity of the outsole has an orifice opening into said cavity and suitable for receive one end of the conduit connecting the two cavities, the rear cavity further comprising a through hole towards the outside of the sole and suitable for receiving the first non-return valve.
- the outsole has on its face lower outer geometrical cutouts constituting notches projecting from the surface of its external underside.
- polyurethane is used to achieve the outsole and the comfort layer is made of expanded polyurethane.
- An article of footwear according to the invention also provides a improved air circulation as far as the compressible chamber in the heel, the upper wall and the bottom wall of the compressible chamber can both undergo deformation and exercise pressure on the air locked in said chamber.
- Air intake in the footwear of the invention can be done at the upper edge of the rod or well through air intake holes provided in the upper, especially at the instep.
- the inside of the rod is preferably lined with breathable but impermeable material moisture which is associated with pore foam totally open. So the air coming in from the edge upper of the rod can circulate along the whole face internal of the rod ventilating the foot.
- a sockliner is installed inside the footwear and rests on the comfort layer of the outsole.
- This insole has on its front part of the perforations putting in communication the inside of the footwear with the room compressible from the front part of the outsole.
- the stale air entering the compressible chamber of the front part is isolated in this room when the user puts the part forefoot, blocking air intake from the inside of the footwear through perforations in the insole.
- the air subjected to this pressure in said chamber of the front part is expelled through the conduit and non-return valve towards the heel.
- the heel is then placed and the room compressible heel is then stressed exerted by the ground and a stress exerted by the foot of the user of the footwear.
- the conduit comprising a non-return valve preventing air circulation from heel towards the front of the sole, the air is expelled at the through the non-return valve provided in the chamber compressible from the heel and admitting the passage of air to the outside of the sole.
- the invention also relates to a manufacturing method an article of footwear having an outsole, a insole provided with perforations in its part front and a upper, said outsole comprising at minus a compressible chamber in its open front part towards the inside of the footwear and at least one compressible chamber in the heel provided with at least one first non-return valve not allowing the passage of that towards the outside of the footwear, the compressible chamber in the front part being connected to the compressible heel chamber via a conduit comprising a second non-return valve allowing air circulation only from front to back of the outsole according to the invention characterized in that mold a outsole having at least one front cavity, precursor of the compressible chamber, in the front part and at least one rear cavity, precursor of the compressible chamber in the heel, said cavities being open towards the upper face of said sole wear, the heel cavity comprising at least one orifice and / or a conduit leading to the outside of the sole wear, each cavity having an orifice receiving the end of a conduit connecting said cavities and provided a non-return valve
- This non-return valve can be installed in the opening and / or the duct of the front rear cavity or after overmolding the comfort layer on the sole wear.
- the duct provided with a non-return valve connecting the compressible chambers of the outsole can be formed during the molding of the comfort layer, the valve being put in place before overmolding.
- the layer of comfort is overmolded and has perforations in look at said recesses of the compressible chamber.
- a sole 1 of an article of footwear according to the invention has a outsole 2 having a layer of comfort 3.
- the outsole 2 is preferably obtained by molding polyurethane.
- This outsole 2 has a rear cavity precursor of a compressible chamber 4 at heel level and a front cavity precursor of a compressible chamber 5 at its front part.
- the two cavities are formed during molding so as to be open on the upper side of the outsole 2.
- Each cavity has an orifice opening into said cavity, each orifice receiving one end of a conduit 6 connecting said cavities and later chambers 4, 5.
- the comfort layer 3 is then produced by overmolding of the outsole 2.
- the outsole 2 Preferably, expanded polyurethane.
- the comfort layer 3 covers the rear cavity precursor of chamber 4 so as to form the closed compressible chamber 4 in the heel while the compressible chamber 5 of the front part is kept open towards the upper face of the sole 1.
- the compressible chamber 4 of the heel has only an air inlet through duct 6 and an outlet air through the non-return valve mounted in port 7. All the walls of the compressible chamber 4 are made of an elastically deformable material ensuring good deformation during compression exerted on said chamber 4 when fitting the heel to the walking course. This deformation is therefore suitable for properly expelling the air contained in the bedroom 4.
- the outsole 2 preferably has on its face lower cutouts of geometric shape constituting notches 9 providing good grip of the soles especially on muddy or wet grounds.
- some of these notches are made in projection from the bottom surface of the sole 2 so that, when walking, they sink towards inside and put pressure on the air locked in compressible chambers 4 and 5 allowing evacuation air outside said chambers 4 and 5.
- the conduit 6 comprises a non-return valve 8 allowing air circulation from the room compressible 5 to the compressible chamber 4 and preventing reverse circulation.
- an article of footwear was produced in which the air circulation is perfectly ensured using a device fully integrated into the sole of an article footwear consisting of a outsole provided with a comfort layer, using a minimum of elements which is therefore simple to carry out and economically advantageous.
Abstract
Description
La présente invention concerne un article chaussant à circulation d'air et son procédé de fabrication.The present invention relates to an article of footwear with air circulation and its manufacturing process.
Le port d'articles chaussants, lors d'une station debout prolongée, de piétinements et/ou de déplacements plus ou moins longs à pied, entraíne souvent des sensations désagréables d'inconfort et de brûlure liées à la sudation pédieuse et au gonflement du pied.Wearing footwear while standing prolonged, trampling and / or movement more or shorter on foot, often leads to sensations unpleasant discomfort and burning from sweating pedal and swelling of the foot.
Afin de résoudre ce type de problème, on a proposé des articles chaussants à circulation d'air tels que ceux décrits dans FR-A-2 594 305, FR-A-2 052 268, FR-A-2 695 303, FR-A-2 684 525, EP-A-0 319. 968, WO-A-8910073 et WO-A-9513714. Les solutions proposées dans ces documents ne sont pas entièrement satisfaisantes dans la mesure où soit seul le dessous de la voûte plantaire est ventilé, soit l'air n'est pas complètement expulsé hors de la chaussure et se contente de circuler du talon à la voûte plantaire dans la semelle. In order to solve this type of problem, we have proposed air circulation footwear such as those described in FR-A-2 594 305, FR-A-2 052 268, FR-A-2 695 303, FR-A-2 684 525, EP-A-0 319. 968, WO-A-8910073 and WO-A-9513714. The solutions proposed in these documents are not not entirely satisfactory insofar as either alone the bottom of the arch is ventilated, i.e. the air is not completely expelled from the shoe and is happy to circulate from the heel to the arch of the foot in the sole.
En outre, certains de ces dispositifs, faisant appel à des éléments extérieurs tels qu'une pompe mise en place dans une cavité ménagée dans la semelle d'usure (GB-A-2 247 391) ou intégrée dans la masse de la semelle d'usure (EP-A-0 594 518), se révèlent coûteux.In addition, some of these devices, using external elements such as a pump installed in a cavity in the outsole (GB-A-2 247 391) or integrated into the mass of the outsole (EP-A-0 594 518), turn out to be expensive.
Dans FR-A-2 723 822, on a proposé un article chaussant comportant un dispositif de circulation d'air propre à évacuer l'air depuis l'intérieur de l'article chaussant vers l'extérieur dudit article chaussant. Cet article chaussant comporte une semelle d'usure dans laquelle est ménagée une cavité compressible à l'avant et à l'arrière. Les cavités compressibles sont obtenues dans la semelle d'usure, par exemple, par moulage de celle-ci. La cavité compressible dans la partie avant est réalisée ouverte vers l'intérieur de l'article chaussant tandis que la cavité compressible dans le talon est fermée de manière à présenter uniquement une entrée d'air provenant de la partie avant de la semelle et une sortie d'air vers l'extérieur. Cette cavité compressible est en général close par collage d'une semelle de propreté dans l'article chaussant. On obtient avec ce dispositif une bonne circulation d'air au sein d'un article chaussant. Comme on l'a mentionné, la fermeture de la chambre compressible du talon se fait par la mise en place de la semelle de propreté sur la semelle d'usure. Il peut s'ensuivre, après un certain temps d'utilisation de l'article chaussant, une perte de l'étanchéité au niveau de la cavité compressible du talon, diminuant alors l'efficacité du dispositif de circulation d'air et ce, par exemple, par usure de la semelle de propreté.In FR-A-2 723 822, an article of footwear was proposed comprising an air circulation device suitable for exhaust air from inside the footwear outward of said footwear. This article footwear has a outsole in which is formed a compressible cavity at the front and rear. The compressible cavities are obtained in the sole wear, for example, by molding thereof. The cavity compressible in the front part is made open towards the inside of the footwear while the cavity compressible in the heel is closed so present only an air intake from the front part of the sole and an air outlet to outside. This compressible cavity is generally closed by sticking a sock in the article fit. We obtain with this device a good air circulation within an article of footwear. As we mentioned, closing the compressible chamber of the heel is made by the establishment of the sole of cleanliness on the outsole. It can ensue after a certain period of use of the footwear, a loss of tightness in the compressible cavity heel, thereby reducing the effectiveness of the air circulation, for example by wear of the insole.
Afin de pallier ces inconvénients, la présente invention propose un article chaussant à circulation d'air dans lequel le dispositif de circulation d'air est totalement intégré dans la semelle et ce, de manière économique, en limitant le nombre d'éléments constituant ledit dispositif de circulation d'air. In order to overcome these drawbacks, the present invention offers an article of footwear with air circulation in which the air circulation device is totally integrated into the sole and this, economically, limiting the number of elements constituting said device air circulation.
On connaít également, par WO 87/03789, un article chaussant incorporant dans le talon et/ou la semelle au moins une cavité reliée, par une valve d'étranglement variable, à l'air ambiant de telle sorte que la cavité agit en tant que coussin d'air, ressort et/ou amortisseur réglable.Also known, from WO 87/03789, an article of footwear incorporating in the heel and / or the sole at least one cavity connected, by a variable throttle valve, to ambient air so that the cavity acts as adjustable air cushion, spring and / or shock absorber.
Ce dispositif n'est pas prévu pour réaliser une circulation d'air mais seulement pour produire un effet amortisseur. This device is not intended to carry out a circulation air but only to produce a damping effect.
A cet effet, la présente invention a pour objet un article chaussant présentant une semelle d'usure moulée, une semelle de propreté pourvue de perforations dans sa partie avant et une tige, ladite semelle d'usure comportant au moins une chambre compressible dans sa partie avant ouverte vers l'intérieur de l'article chaussant et au moins une chambre compressible dans le talon munie d'au moins une première valve anti-retour ne permettant le passage de l'air que vers l'extérieur de l'article chaussant, la chambre compressible dans la partie avant étant reliée à la chambre compressible du talon par l'intermédiaire d'un conduit comportant une seconde valve anti-retour permettant la circulation d'air seulement de l'avant vers l'arrière de la semelle d'usure, caractérisé en ce que la semelle d'usure est moulée de manière à comporter au moins une cavité avant, précurseur de la chambre compressible (5) dans la partie avant, et au moins une cavité arrière, précurseur de la chambre compressible (4) dans le talon, lesdites cavités étant ouvertes sur la face supérieure de la semelle d'usure (2), la semelle d'usure (2) comporte une couche de confort surmoulée sur ladite semelle d'usure, la semelle d'usure et la couche de confort définissant entre elles les chambres compressibles, la couche de confort recouvrant la cavité arrière de la semelle d'usure tandis que la cavité avant de la semelle d'usure est conservée ouverte et la semelle d'usure et la couche de confort formant ou emprisonnant un conduit reliant lesdites chambres et pourvu de la seconde valve anti-retour ainsi qu'au moins un orifice et/ou un conduit reliant la chambre compressible du talon à l'extérieur et muni de la première valve anti-retour.To this end, the subject of the present invention is an article footwear with a molded outsole, a insole provided with perforations in its part front and a upper, said outsole comprising at minus a compressible chamber in its open front part towards the inside of the footwear and at least one compressible chamber in the heel provided with at least one first non-return valve not allowing the passage of that towards the outside of the footwear, the compressible chamber in the front part being connected to the compressible heel chamber via a conduit comprising a second non-return valve allowing air circulation only from front to back of the outsole, characterized in that the sole wear is molded so as to include at least one cavity front, precursor of the compressible chamber (5) in the part front, and at least one rear cavity, precursor of the chamber compressible (4) in the heel, said cavities being open on the upper face of the outsole (2), the outsole (2) has a comfort layer overmolded on said outsole, outsole and comfort layer defining between them the compressible chambers, the comfort layer covering the rear cavity of the outsole while the front cavity of the sole of wear is kept open and the outsole and the comfort layer forming or trapping a duct connecting said chambers and provided with the second valve check valve and at least one orifice and / or one conduit connecting the compressible chamber of the heel to the outside and fitted with the first non-return valve.
Ainsi, on définit une semelle d'un article chaussant se décomposant en une semelle d'usure dans sa partie inférieure pourvue d'une couche de confort dans sa partie supérieure, la semelle d'usure et la couche de confort définissant entre elles les chambres compressibles du dispositif de circulation d'air, les seuls éléments rapportés dudit dispositif pouvant être le conduit pourvu de sa valve anti-retour assurant le passage de l'air de la partie avant vers la partie arrière de la semelle d'usure ainsi que la valve anti-retour mise en place dans la chambre compressible du talon pour permettre l'expulsion de l'air hors de ladite chambre vers l'extérieur de l'article chaussant.Thus, we define a sole of a footwear item decomposing into a outsole in its part lower with a layer of comfort in its part upper, outsole and comfort layer defining between them the compressible chambers of the air circulation device, the only elements added from said device which can be the conduit provided its non-return valve ensuring the passage of air from the front part towards the rear part of the outsole as well as the non-return valve installed in the compressible heel chamber to allow expulsion of the air out of said chamber to the outside of the article fit.
En conséquence, on obtient une chambre compressible au niveau du talon pratiquement totalement close au sein de la semelle de l'article chaussant, seule une entrée d'air étant autorisée au niveau du conduit mis en place ou formé entre ladite chambre du talon et la chambre compressible de la partie avant et une sortie d'air étant autorisée vers l'extérieur au travers de la première valve anti-retour. On évite ainsi tout risque de fuites d'air vers l'intérieur de l'article chaussant au niveau de ladite chambre compressible dans le talon ce qui pourrait nuire à l'efficacité de la circulation d'air.Consequently, a compressible chamber is obtained at almost completely closed heel level within the sole of the footwear, only one air intake being authorized at the level of the conduit installed or formed between said heel chamber and the compressible chamber of the front part and an air outlet being authorized towards the exterior through the first non-return valve. We this avoids any risk of air leaks into the interior of the article of footwear at the level of said chamber compressible in the heel which could harm efficient air circulation.
De préférence, chaque cavité de la semelle d'usure présente un orifice débouchant dans ladite cavité et propre à recevoir une extrémité du conduit reliant les deux cavités, la cavité arrière comportant en outre un orifice débouchant vers l'extérieur de la semelle et propre à recevoir la première valve anti-retour.Preferably, each cavity of the outsole has an orifice opening into said cavity and suitable for receive one end of the conduit connecting the two cavities, the rear cavity further comprising a through hole towards the outside of the sole and suitable for receiving the first non-return valve.
Avantageusement, la semelle d'usure comporte sur sa face inférieure externe des découpes de forme géométrique constituant des crans réalisés en saillie par rapport à la surface de sa face inférieure externe.Advantageously, the outsole has on its face lower outer geometrical cutouts constituting notches projecting from the surface of its external underside.
De préférence, on utilise du polyuréthanne pour réaliser la semelle d'usure et la couche de confort est réalisée en polyuréthanne expansé.Preferably, polyurethane is used to achieve the outsole and the comfort layer is made of expanded polyurethane.
Un article chaussant selon l'invention propose en outre une circulation d'air améliorée dans la mesure où, au niveau de la chambre compressible dans le talon, la paroi supérieure et la paroi inférieure de la chambre compressible peuvent l'une et l'autre subir une déformation et exercer une pression sur l'air enfermé dans ladite chambre.An article of footwear according to the invention also provides a improved air circulation as far as the compressible chamber in the heel, the upper wall and the bottom wall of the compressible chamber can both undergo deformation and exercise pressure on the air locked in said chamber.
L'admission d'air dans l'article chaussant de l'invention peut se faire au niveau du bord supérieur de la tige ou bien au travers d'orifices d'admission d'air prévus dans la tige, en particulier au niveau du cou-de-pied. Par ailleurs, l'intérieur de la tige est, de préférence, tapissé d'un matériau perméable à l'air mais imperméable à l'humidité qui est associé à une mousse alvéolaire à pores totalement ouverts. Ainsi, l'air entrant par le bord supérieur de la tige peut circuler le long de toute la face interne de la tige aérant le pied.Air intake in the footwear of the invention can be done at the upper edge of the rod or well through air intake holes provided in the upper, especially at the instep. Through elsewhere, the inside of the rod is preferably lined with breathable but impermeable material moisture which is associated with pore foam totally open. So the air coming in from the edge upper of the rod can circulate along the whole face internal of the rod ventilating the foot.
Une semelle de propreté est installée à l'intérieur de l'article chaussant et repose sur la couche de confort de la semelle d'usure. Cette semelle de propreté comporte sur sa partie avant des perforations mettant en communication l'intérieur de l'article chaussant avec la chambre compressible de la partie avant de la semelle d'usure.A sockliner is installed inside the footwear and rests on the comfort layer of the outsole. This insole has on its front part of the perforations putting in communication the inside of the footwear with the room compressible from the front part of the outsole.
Ainsi, au cours de la marche, l'air vicié entrant dans la chambre compressible de la partie avant se trouve isolé dans cette chambre lorsque l'utilisateur pose la partie avant du pied, bloquant l'admission d'air depuis l'intérieur de l'article chaussant au travers des perforations de la semelle de propreté. L'air soumis à cette pression dans ladite chambre de la partie avant est expulsé au travers du conduit et de la valve anti-retour vers le talon. Le talon ensuite est posé et la chambre compressible du talon est alors soumise à une contrainte exercée par le sol et une contrainte exercée par le pied de l'utilisateur de l'article chaussant. Le conduit comportant une valve anti-retour empêchant la circulation d'air du talon vers l'avant de la semelle, l'air est expulsé au travers de la valve anti-retour prévue dans la chambre compressible du talon et admettant le passage de l'air vers l'extérieur de la semelle.Thus, during the walk, the stale air entering the compressible chamber of the front part is isolated in this room when the user puts the part forefoot, blocking air intake from the inside of the footwear through perforations in the insole. The air subjected to this pressure in said chamber of the front part is expelled through the conduit and non-return valve towards the heel. The heel is then placed and the room compressible heel is then stressed exerted by the ground and a stress exerted by the foot of the user of the footwear. The conduit comprising a non-return valve preventing air circulation from heel towards the front of the sole, the air is expelled at the through the non-return valve provided in the chamber compressible from the heel and admitting the passage of air to the outside of the sole.
L'invention concerne également un procédé de fabrication d'un article chaussant présentant une semelle d'usure, une semelle de propreté pourvue de perforations dans sa partie avant et une tige, ladite semelle d'usure comportant au moins une chambre compressible dans sa partie avant ouverte vers l'intérieur de l'article chaussant et au moins une chambre compressible dans le talon munie d'au moins une première valve anti-retour ne permettant le passage de l'air que vers l'extérieur de l'article chaussant, la chambre compressible dans la partie avant étant reliée à la chambre compressible du talon par l'intermédiaire d'un conduit comportant une seconde valve anti-retour permettant la circulation d'air seulement de l'avant vers l'arrière de la semelle d'usure selon l'invention caractérisé en ce qu'on moule une semelle d'usure présentant au moins une cavité avant, précurseur de la chambre compressible, dans la partie avant et au moins une cavité arrière, précurseur de la chambre compressible dans le talon, lesdites cavités étant ouvertes vers la face supérieure de ladite semelle d'usure, la cavité du talon comportant au moins un orifice et/ou un conduit débouchant sur l'extérieur de la semelle d'usure, chaque cavité présentant un orifice recevant l'extrémité d'un conduit reliant lesdites cavités et pourvu d'une valve anti-retour ne permettant le passage de l'air que de la partie avant de la semelle vers le talon, et on surmoule ladite semelle d'usure par une couche de confort définissant avec la semelle d'usure une chambre compressible fermée dans le talon et une chambre compressible ouverte dans la partie avant de la semelle de l'article chaussant et emprisonnant le conduit reliant les deux chambres compressibles, une valve anti-retour étant mise en place dans l'orifice et/ou le conduit de la chambre compressible du talon de manière à autoriser uniquement le passage d'air de la chambre vers l'extérieur. The invention also relates to a manufacturing method an article of footwear having an outsole, a insole provided with perforations in its part front and a upper, said outsole comprising at minus a compressible chamber in its open front part towards the inside of the footwear and at least one compressible chamber in the heel provided with at least one first non-return valve not allowing the passage of that towards the outside of the footwear, the compressible chamber in the front part being connected to the compressible heel chamber via a conduit comprising a second non-return valve allowing air circulation only from front to back of the outsole according to the invention characterized in that mold a outsole having at least one front cavity, precursor of the compressible chamber, in the front part and at least one rear cavity, precursor of the compressible chamber in the heel, said cavities being open towards the upper face of said sole wear, the heel cavity comprising at least one orifice and / or a conduit leading to the outside of the sole wear, each cavity having an orifice receiving the end of a conduit connecting said cavities and provided a non-return valve allowing the passage of air from the front part of the sole to the heel, and overmolded said outsole with a layer of comfort defining with the outsole a chamber compressible closed in the heel and a chamber compressible open in the front part of the sole the article of footwear and imprisoning the conduit connecting the two compressible chambers, one non-return valve being placement in the orifice and / or the chamber duct compressible heel so as to only allow the air passage from the room to the outside.
Cette valve anti-retour peut être mise en place dans l'orifice et/ou le conduit de la cavité arrière avant ou après le surmoulage de la couche de confort sur la semelle d'usure.This non-return valve can be installed in the opening and / or the duct of the front rear cavity or after overmolding the comfort layer on the sole wear.
Le conduit pourvu d'une valve anti-retour reliant les chambres compressibles de la semelle d'usure peut être formé au cours du surmoulage de la couche de confort, la valve étant mise en place avant le surmoulage.The duct provided with a non-return valve connecting the compressible chambers of the outsole can be formed during the molding of the comfort layer, the valve being put in place before overmolding.
Dans le cas où la chambre compressible de la partie avant est constituée de plusieurs évidements, la couche de confort est surmoulée et présente des perforations en regard desdits évidements de la chambre compressible.In the case where the compressible chamber of the front part consists of several recesses, the layer of comfort is overmolded and has perforations in look at said recesses of the compressible chamber.
On décrira maintenant plus en détail un exemple de réalisation de l'invention en référence au dessin dans lequel la figure unique représente une vue en coupe longitudinale d'une semelle d'un article chaussant selon l'invention.We will now describe in more detail an example of realization of the invention with reference to the drawing in which the single figure represents a sectional view longitudinal of a sole of an article of footwear according to the invention.
Une semelle 1 d'un article chaussant selon l'invention
comporte une semelle d'usure 2 présentant une couche de
confort 3.A sole 1 of an article of footwear according to the invention
has a outsole 2 having a layer of
La semelle d'usure 2 est obtenue de préférence par moulage de polyuréthanne. Cette semelle d'usure 2 comporte une cavité arrière précurseur d'une chambre compressible 4 au niveau du talon et une cavité avant précurseur d'une chambre compressible 5 au niveau de sa partie avant. Les deux cavités sont formées au cours du moulage de manière à être ouvertes sur la face supérieure de la semelle d'usure 2.The outsole 2 is preferably obtained by molding polyurethane. This outsole 2 has a rear cavity precursor of a compressible chamber 4 at heel level and a front cavity precursor of a compressible chamber 5 at its front part. The two cavities are formed during molding so as to be open on the upper side of the outsole 2.
Chaque cavité comporte un orifice débouchant dans ladite cavité, chaque orifice recevant une extrémité d'un conduit 6 reliant lesdites cavités et plus tard les chambres 4, 5. Each cavity has an orifice opening into said cavity, each orifice receiving one end of a conduit 6 connecting said cavities and later chambers 4, 5.
Au cours du moulage de la semelle d'usure 2, on ménage un
orifice 7 débouchant dans la cavité arrière précurseur de
la chambre 4. Cet orifice 7 accueille par la suite une
valve anti-retour (non représentée) ou bien encore un
conduit pourvu de ladite valve anti-retour.During the molding of the outsole 2, a
On réalise ensuite la couche de confort 3 par surmoulage de
la semelle d'usure 2. On utilise de préférence du
polyuréthanne expansé.The
Au cours du surmoulage, la couche de confort 3 recouvre la
cavité arrière précurseur de la chambre 4 de manière à
former la chambre compressible fermée 4 dans le talon
tandis que la chambre compressible 5 de la partie avant est
conservée ouverte vers la face supérieure de la semelle 1.During overmolding, the
Ainsi, la chambre compressible 4 du talon présente
uniquement une entrée d'air par le conduit 6 et une sortie
d'air par la valve anti-retour montée dans l'orifice 7.
Toutes les parois de la chambre compressible 4 sont
constituées en un matériau élastiquement déformable
assurant une bonne déformation lors de la compression
exercée sur ladite chambre 4 lors de la pose du talon au
cours de la marche. Cette déformation est par conséquent
propre à expulser convenablement l'air contenu dans la
chambre 4.Thus, the compressible chamber 4 of the heel has
only an air inlet through duct 6 and an outlet
air through the non-return valve mounted in
La semelle d'usure 2 comporte, de préférence, sur sa face
inférieure des découpes de forme géométrique constituant
des crans 9 procurant une bonne adhérence des semelles en
particulier sur des terrains boueux ou mouillés. En outre,
certains de ces crans (non représentés) sont réalisés en
saillie par rapport à la surface inférieure de la semelle 2
de telle sorte que, lors de la marche, ils s'enfoncent vers
l'intérieur et exercent une pression sur l'air enfermé dans
les chambres compressibles 4 et 5 permettant l'évacuation
de l'air hors desdites chambres 4 et 5. The outsole 2 preferably has on its face
lower cutouts of geometric
Afin de favoriser la circulation de l'air dans l'article chaussant, le conduit 6 comporte une valve anti-retour 8 permettant la circulation d'air depuis la chambre compressible 5 vers la chambre compressible 4 et empêchant une circulation inverse.To promote air circulation in the article footwear, the conduit 6 comprises a non-return valve 8 allowing air circulation from the room compressible 5 to the compressible chamber 4 and preventing reverse circulation.
Ainsi, on a réalisé un article chaussant dans lequel la circulation d'air est parfaitement assurée à l'aide d'un dispositif totalement intégré dans la semelle d'un article chaussant se composant d'une semelle d'usure pourvue d'une couche de confort, faisant appel à un minimum d'éléments constitutifs et qui se révèle donc simple à réaliser et économiquement avantageux.Thus, an article of footwear was produced in which the air circulation is perfectly ensured using a device fully integrated into the sole of an article footwear consisting of a outsole provided with a comfort layer, using a minimum of elements which is therefore simple to carry out and economically advantageous.
Claims (8)
- Footwear having a moulded outsole (2), an insole provided with perforations in its front part and an upper, the said outsole (2) having at least one compressible chamber (5) in its front part open towards the interior of the footwear and at least one compressible chamber (4) in the heel provided with at least a first non-return valve allowing the passage of air only towards the outside of the footwear, the compressible chamber (5) in the front part being connected to the compressible chamber (4) in the heel via a duct (6) containing a second non-return valve (8) allowing the circulation of air only from the front towards the rear of the outsole (2),
characterised in that the outsole (2) is moulded so as to contain at least one front cavity, the precursor of the compressible chamber (5) in the front part, and at least one rear cavity, the precursor of the compressible chamber (4) in the heel, the said cavities being open on the upper surface of the outsole (2), the outsole (2) has a comfort layer (3) moulded onto the said outsole (2), the outsole (2) and the comfort layer (3) defining between them the compressible chambers (4, 5), the comfort layer (3) covering the rear cavity in the outsole (2) whilst the front cavity in the outsole (2) is kept open and the outsole (2) and the comfort layer (3) forming or encompassing the duct (6) connecting the said chambers (4, 5) and provided with the second non-return valve (8) as well as at least one orifice (7) and/or a duct connecting the compressible chamber (4) in the heel to the outside and provided with the first non-return valve. - Footwear according to Claim 1,
characterised in that each cavity in the outsole has an orifice opening into the said cavity and suitable for receiving one end of the duct (6) connecting the two cavities, the rear cavity also having an orifice (7) opening towards the outside of the sole (1) and suitable for receiving the first non-return valve. - Footwear according to one of Claims 1 and 2,
characterised in that the outsole (2) has on its outer lower surface cut-outs of geometric shape forming profiles produced such that they project with respect to the surface of its outer lower surface. - Footwear according to one of Claims 1 to 3,
characterised in that the outsole (2) is made of polyurethane. - Footwear according to one of Claims 1 to 4,
characterised in that the comfort layer (3) is made of expanded polyurethane. - Method for the manufacture of footwear having a moulded outsole (2), an insole provided with perforations in its front part and an upper, the said outsole (2) having at least one compressible chamber (5) in its front part open towards the interior of the footwear and at least one compressible chamber (4) in the heel provided with at least a first non-return valve allowing the passage of air only towards the outside of the footwear, the compressible chamber (5) in the front part being connected to the compressible chamber (4) in the heel via a duct (6) containing a second non-return valve (8) allowing the circulation of air only from the front towards the rear of the outsole (2) according to one of Claims 1 to 5,
characterised in that an outsole (2) having at least one front cavity, the precursor of the compressible chamber (5), in the front part, and at least one rear cavity, the precursor of the compressible chamber (4) in the heel, the said cavities being open towards the upper surface of the said outsole (2), the rear cavity in the heel having at least one orifice (7) and/or a duct opening to the outside of the outsole (2), each cavity having an orifice receiving the end of a duct (6) connecting the said cavities and provided with a non-return valve (8) allowing the passage of air only from the front part of the outsole (2) towards the heel, is moulded and
a comfort layer (3), defining, with the outsole (2), a closed compressible chamber (4) in the heel and an open compressible chamber (5) in the front part of the sole (1) of the footwear and encompassing the duct (6), is moulded onto the said outsole (2), a non-return valve being fitted in the orifice (7) and/or the duct of the chamber (4) in the heel so as to permit only the passage of air from the chamber (4) towards the outside. - Method according to Claim 6,
characterised in that the non-return valve is fitted in the orifice or the duct of the rear cavity that is the precursor of the compressible chamber (4) in the heel before the comfort layer is moulded on. - Method according to Claim 6,
characterised in that the non-return valve is fitted in the orifice or the duct of the compressible chamber after the comfort layer has been moulded on.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9613650A FR2755587B1 (en) | 1996-11-08 | 1996-11-08 | AIR CIRCULATING FOOTWEAR AND MANUFACTURING METHOD THEREOF |
| FR9613650 | 1996-11-08 | ||
| PCT/FR1997/002009 WO1998020764A1 (en) | 1996-11-08 | 1997-11-07 | Footwear with air circulation and method of manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0948270A1 EP0948270A1 (en) | 1999-10-13 |
| EP0948270B1 true EP0948270B1 (en) | 2002-02-13 |
Family
ID=9497455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97913281A Expired - Lifetime EP0948270B1 (en) | 1996-11-08 | 1997-11-07 | Footwear with air circulation and method of manufacture |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0948270B1 (en) |
| JP (1) | JP4109720B2 (en) |
| AU (1) | AU5058898A (en) |
| DE (1) | DE69710492T2 (en) |
| DK (1) | DK0948270T3 (en) |
| ES (1) | ES2171917T3 (en) |
| FR (1) | FR2755587B1 (en) |
| PT (1) | PT948270E (en) |
| WO (1) | WO1998020764A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES1050598Y (en) * | 2001-11-12 | 2005-04-16 | Agnelli S L | AIR VALVE FOR FOOTWEAR. |
| DE102009021842A1 (en) * | 2009-05-19 | 2010-12-09 | Löhlein & Seitz GmbH | Air ventilation device for shoe e.g. sandals, has air passage unit with air inlet opening that is formed for air entry from outside into passage unit and air outlet opening that is outwardly formed for air outlet from passage unit |
| DE112011100034C5 (en) | 2011-03-24 | 2014-11-20 | Atmos Airwalk Ag | Shoe with a sole construction |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3608215A (en) | 1969-06-14 | 1971-09-28 | Tatsuo Fukuoka | Footwear |
| GB8531139D0 (en) * | 1985-12-18 | 1986-01-29 | R Plc Sa | Footwear |
| FR2594305B1 (en) | 1986-02-14 | 1990-06-29 | Heschung Robert | SHOE SOLE AND THE LIKE, INCLUDING A RECESS IN ITS UPPER OR LOWER PART |
| CN1011285B (en) | 1987-12-07 | 1991-01-23 | 朱志刚 | Unidirectional air-blow shoe and shoe-pad |
| AU580532B3 (en) * | 1988-04-18 | 1988-11-22 | Zdravko Mario Kuzmic | Insole with foot operated ventilating pump |
| GB2247391A (en) | 1990-08-30 | 1992-03-04 | Triple Three Leisure Limited | Ventilated footwear |
| FR2684525A1 (en) | 1991-12-10 | 1993-06-11 | Kim Sang Do | Shoe sole with aeration (ventilation) and shock-absorbing system |
| FR2695303B1 (en) * | 1992-09-07 | 1994-10-28 | Lemaitre Chaussures Griffon En | Footwear provided with an air circulation device and method of manufacturing such footwear. |
| DE4339104C2 (en) * | 1993-11-16 | 1998-05-20 | Engros Schuhhaus Ag | Shoe sole |
| FR2723822B1 (en) * | 1994-08-31 | 1997-01-10 | Jallatte | AIR CIRCULATING FOOTWEAR |
-
1996
- 1996-11-08 FR FR9613650A patent/FR2755587B1/en not_active Expired - Fee Related
-
1997
- 1997-11-07 ES ES97913281T patent/ES2171917T3/en not_active Expired - Lifetime
- 1997-11-07 DK DK97913281T patent/DK0948270T3/en active
- 1997-11-07 EP EP97913281A patent/EP0948270B1/en not_active Expired - Lifetime
- 1997-11-07 DE DE69710492T patent/DE69710492T2/en not_active Expired - Fee Related
- 1997-11-07 AU AU50588/98A patent/AU5058898A/en not_active Abandoned
- 1997-11-07 PT PT97913281T patent/PT948270E/en unknown
- 1997-11-07 WO PCT/FR1997/002009 patent/WO1998020764A1/en active IP Right Grant
- 1997-11-07 JP JP52223998A patent/JP4109720B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FR2755587A1 (en) | 1998-05-15 |
| DE69710492T2 (en) | 2002-10-24 |
| EP0948270A1 (en) | 1999-10-13 |
| PT948270E (en) | 2002-07-31 |
| AU5058898A (en) | 1998-06-03 |
| FR2755587B1 (en) | 1998-12-31 |
| ES2171917T3 (en) | 2002-09-16 |
| JP2001503306A (en) | 2001-03-13 |
| DE69710492D1 (en) | 2002-03-21 |
| JP4109720B2 (en) | 2008-07-02 |
| WO1998020764A1 (en) | 1998-05-22 |
| DK0948270T3 (en) | 2002-05-27 |
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