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EP0480022A1 - Method and apparatus for producing a protective covering for shoes, boots, etc. - Google Patents

Method and apparatus for producing a protective covering for shoes, boots, etc.

Info

Publication number
EP0480022A1
EP0480022A1 EP19910909762 EP91909762A EP0480022A1 EP 0480022 A1 EP0480022 A1 EP 0480022A1 EP 19910909762 EP19910909762 EP 19910909762 EP 91909762 A EP91909762 A EP 91909762A EP 0480022 A1 EP0480022 A1 EP 0480022A1
Authority
EP
European Patent Office
Prior art keywords
sheet
user
blocks
around
envelope
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Withdrawn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
EP19910909762
Other languages
German (de)
French (fr)
Inventor
Franco Capobianco
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.)
GROUPE AVENUE
Original Assignee
GROUPE AVENUE
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 GROUPE AVENUE filed Critical GROUPE AVENUE
Publication of EP0480022A1 publication Critical patent/EP0480022A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D11/00—Machines for preliminary treatment or assembling of upper-parts, counters, or insoles on their lasts preparatory to the pulling-over or lasting operations; Applying or removing protective coverings
    • A43D11/003—Applying or removing protective coverings
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/16—Overshoes
    • A43B3/163—Overshoes specially adapted for health or hygienic purposes, e.g. comprising electrically conductive material allowing the discharge of electrostatic charges

Definitions

  • the present invention relates to a method as well as an installation for its implementation allowing the manufacture of a protective envelope for shoes, boots, .., usable in all areas where there is the problem of isolating a nobody from the outside world, such as for example in the medical field.
  • the method according to the invention consists in producing a protective envelope around each of the shoes (or the like) worn by the user, said method being characterized in that the development of said envelope is carried out on the site of use, directly on the person and this, by implementing at least the combination of the following operations:
  • a non-woven sheet or film based on a material is used making it possible to obtain a heat-sealing or heat-bonding of said sheet.
  • an additional reinforcing element is associated with the underside of the ply when it is shaped like an open U-shaped shell, in the zone intended to form the base of said shell and corresponding to the underside of the foot;
  • a clamping element around the leg of the user such as an elastic band, stretch tape, is attached to the upper part of the shell, along the open area.
  • the installation for the implementation of the aforementioned method consists of an assembly arranged on the site of use itself and which comprises, mounted on a base or support block, fixedly, two elementary blocks for forming the envelope around the user's shoe and whose structure is such that:
  • one of the blocks comprises means making it possible to deliver a flat sheet (nonwoven or film) to a set allowing to put said sheet in the form of an open U, the lateral faces of which are kept pressed against the surfaces of the two elementary blocks;
  • the two elementary blocks comprise means which, in cooperation, make it possible to shape said flat U-shaped sheet around the shoe of the user and to secure the facing faces of this sheet along lines passing through the plane bisector of the two lateral shaping blocks and arranged one on the front of the foot, the other at the back of the heel.
  • the means for ensuring the connection of the sheet to form the envelope around the shoe of the user, sotn constituted by a set of movable retractable bars making it possible to simultaneously ensure the welding and cutting of the sheet according to the desired profile around the shoe.
  • Such bars are preferably adjustable in spacing to adapt to the different sizes of shoe to be covered.
  • the means for putting the sheet of material in the form of a U-shaped envelope are, according to one embodiment, constituted by a set of movable clamps along two opposite guide rails, arranged between the two blocks. Furthermore, the retention of said sheet against the surfaces of the conforming blocks is against the support base and preferably obtained by suction.
  • the installation according to the invention comprises means allowing a reinforcement of the zone of the sheet intended to be arranged below the shoe as well as means making it possible to have a clamping element, such as an elastic element (self-adhesive stretch tape, for example) at the top of the sheet.
  • a clamping element such as an elastic element (self-adhesive stretch tape, for example) at the top of the sheet.
  • - Figure 2 is a cross section of said machine, schematically showing its structure and operation;
  • - Figure 3 is another perspective view showing in greater detail how the sheet is delivered allowing the protective envelope according to the invention to be produced, as well as the assembly allowing the installation of an elastic element, such that extendable tape, at the top of the envelope in order to obtain a tightening around the user's leg.
  • FIG. 1 schematically illustrates, in perspective, the whole of an installation allowing the implementation of the process according to the invention, a process which generally consists in carrying out on the site of use , directly on the person, the protective envelope intended to cover his shoes or boots.
  • such a machine consists essentially of two assemblies or shaping blocks, respectively (A) and (B), mounted on a support base (C).
  • the two shaping assemblies (A) and (B) are fixedly mounted on the support block (C), and are spaced from each other by a sufficient distance to allow the passage of the foot of a person provided of a shoe.
  • the installation according to the invention comprises all of the following means.
  • the raw material, nonwoven or film preferably, is stored in the form of a roll (1) inside the block (B).
  • This material can be delivered by means of a roller drive system (2), allowing it to be delivered in the form of a flat sheet (3) in the space between the two blocks (A, B ).
  • the installation inside the space between the two blocks (A, B) is carried out so that this sheet (3) is arranged in the form of an open U, whose lateral faces are maintained pressed against the facing surfaces of the two elementary blocks (A, B).
  • the installation is carried out by means of two transfer elements (4,5) parallel, arranged at each of the ends of the open area.
  • These transfer elements (4,5) are schematically in the form of a clamp system (6,7) associated with means such as rails or guide belts.
  • the clips per ⁇ put to grip the end of the sheet (3) at the outlet of a slot (8) provided in the upper part of the block (B) which extends over the entire length of the latter.
  • the clamps (6,7) are moved simultaneously along the rails or belts (4,5), and therefore put the strip of material (3) in a U shape inside the space taken between the blocks (A, B).
  • the support both against the side walls and against the lower surface (10) of the base (C) is obtained by means of a suction system.
  • a suction system can consist of two suction assemblies (11,12) provided in each of the blocks (see FIG. 2), making it possible, via suitable conduits opening into orifices provided on the side walls, to hold the strip of plated material as shown in Figure 2. Furthermore, as can be seen in FIG.
  • the base (10) supporting the lower part of the U-shaped sheet is constituted by a movable assembly in the form of a tray. (13) can be actuated vertically by means of a jack system (14).
  • the covering sheet thus being placed inside the installation, the production of the closed envelope around the user's foot is ob ⁇ held by means of two shaping assemblies essentially consisting of sealing bars- cutters (15,16,17, 18).
  • the heat-seal cutter assemblies will be identical for each of the two blocks (A, B) and can be moved from a retracted position inside each of the blocks to a position passing substantially through the bisector plane of the two blocks.
  • such an installation also comprises means (20, 21) allowing the establishment of a reinforcing layer in the zone intended to be disposed below the foot, as well as means (22) allowing to have an expandable element (27) at the periphery of the envelope ensuring its perfect retention around the user's leg.
  • the drive rollers (2) deliver a certain length of film (3) in the cavity (20,21) intended to form the reinforcing surface which must be attached below the protective envelope. This length of film is cut and is held against the surface of one of the elements of the impression (21).
  • the film (3) is again driven by the rollers (2), passes through the slot (8) and its ends are gripped by the lateral pins (6,7). It is pulled by said pliers on along the guide elements (4,5) (rails or belts), and descends against the internal face of the block (B). At a determined point which corresponds to the bottom of the foot (sole), the imprint (20, 21) thermosolder the part cut beforehand on the film of material thus cut.
  • the person introduces a foot inside the space between the two faces of the U.
  • a foot By any suitable means such as for example by pressure of the foot, one causes the displacement of the actual shaping elements constituted by the heat-sealing bars (15,16,17,18). These bars come out of the blocks (1,2) and therefore come to wrap the raw material on each side of the foot. A weld is therefore produced and cut along two lines, one corresponding to the front (foot), the other to the rear.
  • an extensible element such as for example an elastic tape or wire (27), advantageously self-adhesive, which makes it possible to tighten around the user's leg.
  • the waste is eliminated, for example by suction through holes provided at the base of the base. Additional means, such as for example a system with compressor cylinders and / or heat treatment can be provided in this base to compact said waste.
  • Additional means such as for example a system with compressor cylinders and / or heat treatment can be provided in this base to compact said waste.
  • Such a particularly simple design assembly therefore makes it possible to economically and effectively produce protective envelopes, perfectly sealed around the foot of a person.
  • the invention is not limited to the embodiment described above. It could be envisaged to slightly modify the shape of the heat-sealing bars (15,16,17,18).
  • such an installation may include means making it possible to spread said bars more or less relative to one another in order to be able to carry out an adjustment of the dimensions of the envelope formed as a function of the size of the shoes to be wrapped.

Landscapes

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

Abstract

Procédé pour la réalisation d'une enveloppe protectrice autour de chacune des chaussures (ou similaires) portées par un utilisateur. Il se caractérise en ce que l'élaboration de ladite enveloppe est réalisée sur le site même d'utilisation, directement sur la personne et ce, en mettant en oeuvre au moins la combinaison des opérations suivantes: formation à partir d'une nappe plane (3) d'une coque ouverte en forme de U; mise en place du pied chaussé de l'utilisateur à l'intérieur de la coque ainsi formée; fermeture de ladite coque selon deux lignes continues recouvrant sensiblement le plan médian du U formé par la coque, l'une recouvrant l'avant du pied et remontant le long de la jambe, l'autre, à l'arrière du talon, également sur une hauteur déterminée de la jambe.Method for producing a protective envelope around each of the shoes (or the like) worn by a user. It is characterized in that the development of said envelope is carried out on the site of use, directly on the person and this, by implementing at least the combination of the following operations: formation from a flat sheet ( 3) an open U-shaped shell; fitting the user's shod foot inside the shell thus formed; closure of said shell along two continuous lines substantially covering the median plane of the U formed by the shell, one covering the front of the foot and rising along the leg, the other at the rear of the heel, also on a certain leg height.

Description

PROCEDE ET INSTALLATION POUR LA FABRICATION D'UNE ENVE¬ LOPPE PROTECTRICE DE CHAUSSURES, BOTTES.. . PROCESS AND INSTALLATION FOR THE MANUFACTURE OF A PROTECTIVE SHELL OF SHOES, BOOTS ...
La présente invention a trait à un procédé ainsi qu'à une installation pour sa mise en oeuvre permettant la fabrication d'une enveloppe protectrice pour chaus¬ sures, bottes.. , utilisable dans tous les domaines où se pose le problème d'isoler une personne du milieu exté¬ rieur, tel que par exemple dans le domaine médical.The present invention relates to a method as well as an installation for its implementation allowing the manufacture of a protective envelope for shoes, boots, .., usable in all areas where there is the problem of isolating a nobody from the outside world, such as for example in the medical field.
Dans de nombreux secteurs techniques, se pose le problème de revêtir une personne afin qu'elle soit isolée de l'environnement extérieur et ne puisse le contaminer. Pour ce faire, on utilise à ce jour des combinaisons que revêt l'utilisateur avant d'entrer dans le site de tra¬ vail. A ce jour, les solutions proposées ne permettent cependant pas de recouvrir aisément et efficacement les chaussures ou bottes de l'utilisateur.In many technical sectors, there is the problem of putting on a person so that he is isolated from the external environment and cannot contaminate it. To do this, combinations to date that the user puts on before entering the work site. To date, the solutions proposed do not however allow the user to easily and effectively cover the user's shoes or boots.
Or on a trouvé, et c'est ce qui fait l'objet de la présente invention, un procédé simple, efficace, qui permet de résoudre ce problème.Now we have found, and this is what is the subject of the present invention, a simple, effective method which makes it possible to solve this problem.
D'une manière générale, le procédé conforme à l'in- vention consiste à réaliser une enveloppe protectrice autour de chacune des chaussures (ou similaires) portées par l'utilisateur, ledit procédé se caractérisant en ce que l'élaboration de ladite enveloppe est réalisée sur le site même d'utilisation, directement sur la personne et ce, en mettant en oeuvre au moins la combinaison des opérations suivantes :In general, the method according to the invention consists in producing a protective envelope around each of the shoes (or the like) worn by the user, said method being characterized in that the development of said envelope is carried out on the site of use, directly on the person and this, by implementing at least the combination of the following operations:
- formation à partir d'une nappe plane d'une "coque" ouverte en forme de U ;- formation from a flat sheet of an open "shell" in the shape of a U;
- mise en place du pied chaussé de l'utilisateur à l'intérieur de la coque ainsi formée ; - fermeture de ladite coque selon deux lignes con¬ tinues, passant sensiblement par le plan médian du U formé par la coque, l'une recouvrant l'avant du pied et remontant le long de la jambe, l'autre, à l'arrière du talon également sur une hauteur dé¬ terminée de la jambe.- Installation of the user's shod foot inside the shell thus formed; - Closure of said shell along two continuous lines, passing substantially through the median plane of the U formed by the shell, one covering the front of the foot and rising along the leg, the other at the rear of the heel also over a defined height of the leg.
De préférence, pour la mise en oeuvre du procédé conforme à l'invention, on utilise une nappe non tissé ou film à base d'une matière permettant d'obtenir un thermosoudage ou thermocollage de ladite nappe.Preferably, for the implementation of the method according to the invention, a non-woven sheet or film based on a material is used making it possible to obtain a heat-sealing or heat-bonding of said sheet.
Par ailleurs, selon une forme de mise en oeuvre préférentielle du procédé conforme à l'invention : - un élément de renfort additionnel est associé à la face inférieure de la nappe lors de sa conformation en forme de coque ouverte en U et ce, dans la zone destinée à former la base de ladite coque et correspondant au dessous du pied ; - un élément de serrage autour de la jambe de l'uti¬ lisateur, tel qu'un élastique, ruban extensible, est rapporté à la partie supérieure de la coque, le long de la zone ouverte.Furthermore, according to a preferred form of implementation of the method according to the invention: - an additional reinforcing element is associated with the underside of the ply when it is shaped like an open U-shaped shell, in the zone intended to form the base of said shell and corresponding to the underside of the foot; - A clamping element around the leg of the user, such as an elastic band, stretch tape, is attached to the upper part of the shell, along the open area.
L'installation pour la mise en oeuvre du procédé précité est constituée par un ensemble disposé sur le site même d'utilisation et qui comporte, montés sur une base ou bloc support, de manière fixe, deux blocs élémen¬ taires de formation de l'enveloppe autour de la chaussure de l'utilisateur et dont la structure est telle que :The installation for the implementation of the aforementioned method consists of an assembly arranged on the site of use itself and which comprises, mounted on a base or support block, fixedly, two elementary blocks for forming the envelope around the user's shoe and whose structure is such that:
- l'un des blocs comporte des moyens permettant de délivrer une nappe (non tissé ou film) plane à un ensem¬ ble permettant de mettre ladite nappe sous la forme d'un U ouvert, dont les faces latérales sont maintenues pla- quées contre les surfaces des deux blocs élémentaires ; - les deux blocs élémentaires comportent des moyens qui, en coopération, permettent de conformer ladite nappe plane en forme de U autour de la chaussure de l'utilisa¬ teur et de solidariser les faces en regard de cette nappe selon des lignes passant par le plan bissecteur des deux blocs latéraux de conformation et disposées l'une sur l'avant du pied, l'autre à l'arrière du talon.- one of the blocks comprises means making it possible to deliver a flat sheet (nonwoven or film) to a set allowing to put said sheet in the form of an open U, the lateral faces of which are kept pressed against the surfaces of the two elementary blocks; - The two elementary blocks comprise means which, in cooperation, make it possible to shape said flat U-shaped sheet around the shoe of the user and to secure the facing faces of this sheet along lines passing through the plane bisector of the two lateral shaping blocks and arranged one on the front of the foot, the other at the back of the heel.
Dans l'ensemble conforme à l'invention, les moyens permettant d'assurer la liaison de la feuille pour former l'enveloppe autour de la chaussure de l'utilisateur, sotn constitués par un ensemble de barres escamotables mobiles permettant d'assurer simultanément la soudure et la dé¬ coupe de la feuille selon le profil souhaité autour de la chaussure. De telles barres sont de préférence réglables en écartement pour s'adapter aux différentes tailles de chaussure à recouvrir.In the assembly according to the invention, the means for ensuring the connection of the sheet to form the envelope around the shoe of the user, sotn constituted by a set of movable retractable bars making it possible to simultaneously ensure the welding and cutting of the sheet according to the desired profile around the shoe. Such bars are preferably adjustable in spacing to adapt to the different sizes of shoe to be covered.
Les moyens permettant de mettre la feuille de ma- tière sous la forme d'une enveloppe en U sont, selon une forme de réalisation, constitués par un ensemble à pinces mobiles le long de deux rails de guidage opposés, dis¬ posés entre les deux blocs. Par ailleurs, le maintien de ladite feuille contre les surfaces des blocs de conforma- tion est contre la base support et de préférence obtenu par aspiration.The means for putting the sheet of material in the form of a U-shaped envelope are, according to one embodiment, constituted by a set of movable clamps along two opposite guide rails, arranged between the two blocks. Furthermore, the retention of said sheet against the surfaces of the conforming blocks is against the support base and preferably obtained by suction.
Enfin, selon une forme de réalisation préférentiel¬ le, l'installation conforme à l'invention comporte des moyens permettant de réaliser un renfort de la zone de la feuille destinée à être disposée en dessous de la chaus¬ sure ainsi que des moyens permettant de disposer à la partie supérieure de la feuille un élément de serrage, tel qu'un élément élastique (ruban extensible autocollant par exemple) . L'invention et les avantages qu'elle apporte seront cependant mieux compris grâce à l'exemple de réalisation donné ci-après, et qui est illustré par les schémas an¬ nexés, dans lesquels : - la figure 1 est une vue schématique en perspective de 1'ensemble d'une machine conforme à 1'invention ;Finally, according to one preferred embodiment, the installation according to the invention comprises means allowing a reinforcement of the zone of the sheet intended to be arranged below the shoe as well as means making it possible to have a clamping element, such as an elastic element (self-adhesive stretch tape, for example) at the top of the sheet. The invention and the advantages which it provides will however be better understood thanks to the embodiment given below, and which is illustrated by the appended diagrams, in which: - Figure 1 is a schematic perspective view of a whole machine according to the invention;
- la figure 2 est une coupe transversale de ladite machine, montrant schématiquement sa structure et son fonctionnement ; - la figure 3 est une autre vue en perspective mon¬ trant de manière plus détaillée comment est délivrée la nappe permettant de réaliser l'enveloppe protectrice conforme à l'invention, ainsi que l'ensemble permettant la pose d'un élément élastique, tel que ruban extensible, au niveau de la partie supérieure de l'enveloppe afin d'obtenir un serrage autour de la jambe de l'utilisateur.- Figure 2 is a cross section of said machine, schematically showing its structure and operation; - Figure 3 is another perspective view showing in greater detail how the sheet is delivered allowing the protective envelope according to the invention to be produced, as well as the assembly allowing the installation of an elastic element, such that extendable tape, at the top of the envelope in order to obtain a tightening around the user's leg.
La figure 1 illustre de manière schématique, en perspective, l'ensemble d'une installation permettant la mise en oeuvre du procédé conforme à l'invention, procédé qui consiste, d'une manière générale, à réaliser sur le site même d'utilisation, directement sur la personne, l'enveloppe protectrice destinée à recouvrir ses chaus¬ sures ou bottes.FIG. 1 schematically illustrates, in perspective, the whole of an installation allowing the implementation of the process according to the invention, a process which generally consists in carrying out on the site of use , directly on the person, the protective envelope intended to cover his shoes or boots.
Pour ce faire, une telle machine est constituée essentiellement de deux ensembles ou blocs conformateurs, respectivement (A) et (B), montés sur un socle support (C).To do this, such a machine consists essentially of two assemblies or shaping blocks, respectively (A) and (B), mounted on a support base (C).
Les deux ensembles conformateurs (A) et (B) sont montés sur le bloc support (C) de manière fixe, et sont espacés l'un de l'autre d'une distance suffisante pour permettre le passage du pied d'une personne muni d'une chaussure. Ainsi que cela ressort des figures annexées, pour réaliser une enveloppe étanche autour de la chaussure, l'installation conforme à l'invention comporte l'ensemble des moyens suivants.The two shaping assemblies (A) and (B) are fixedly mounted on the support block (C), and are spaced from each other by a sufficient distance to allow the passage of the foot of a person provided of a shoe. As is apparent from the appended figures, in order to produce a sealed envelope around the shoe, the installation according to the invention comprises all of the following means.
La matière première, non tissé ou film de préféren¬ ce, est stockée sous la forme d'un rouleau (1) à l'inté¬ rieur du bloc (B) . Cette matière peut être débitée au moyen d'un système d'entraînement à rouleau (2), permet- tant de la délivrer sous la forme d'une nappe plane (3) dans l'espace compris entre les deux blocs (A,B) . La mise en place à l'intérieur de l'espace compris entre les deux blocs (A,B) est réalisée de telle sorte que cette nappe (3) soit disposée sous la forme d'un U ouvert, dont les faces latérales sont maintenues plaquées contre les sur¬ faces en regard des deux blocs élémentaires (A,B) . La mise en place est réalisée par l'intermédiaire de deux éléments de transfert (4,5) parallèles, disposés à cha¬ cune des extrémités de la zone ouverte. Ces éléments de transfert (4,5) se présentent schématiquement sous la forme d'un système à pinces (6,7) associé à des moyens tels que rails ou courroies de guidage. Les pinces per¬ mettent de saisir l'extrémité de la feuille (3) à la sortie d'une fente (8) prévue à la partie supérieure du bloc (B) qui s'étend sur toute la longueur de ce dernier. Les pinces (6,7) sont déplacées simultanément le long des rails ou courroies (4,5), et mettent donc la bande de matière (3) en forme de U à l'intérieur de l'espace com¬ pris entre les blocs (A,B). Le maintien tant contre les parois latérales que contre la surface inférieure (10) du socle (C), est obtenu au moyen d'un système d'aspiration. Un tel système d'aspiration peut être constitué de deux ensembles aspirants (11,12) prévus dans chacun des blocs (voir figure 2), permettant par l'intermédiaire de con- duits appropriés débouchant dans des orifices prévus sur les parois latérales, de maintenir la bande de matière plaquée comme représenté à la figure 2. Par ailleurs, comme cela ressort de la figure 2, pour adapter l'enveloppe aux dimensions de la chaussure à réaliser, la base (10) supportant la partie inférieure de la feuille en forme de U est constituée par un ensemble mobile en forme de plateau (13) pouvant être actionné verticalement au moyen d'un système à vérins (14).The raw material, nonwoven or film preferably, is stored in the form of a roll (1) inside the block (B). This material can be delivered by means of a roller drive system (2), allowing it to be delivered in the form of a flat sheet (3) in the space between the two blocks (A, B ). The installation inside the space between the two blocks (A, B) is carried out so that this sheet (3) is arranged in the form of an open U, whose lateral faces are maintained pressed against the facing surfaces of the two elementary blocks (A, B). The installation is carried out by means of two transfer elements (4,5) parallel, arranged at each of the ends of the open area. These transfer elements (4,5) are schematically in the form of a clamp system (6,7) associated with means such as rails or guide belts. The clips per¬ put to grip the end of the sheet (3) at the outlet of a slot (8) provided in the upper part of the block (B) which extends over the entire length of the latter. The clamps (6,7) are moved simultaneously along the rails or belts (4,5), and therefore put the strip of material (3) in a U shape inside the space taken between the blocks (A, B). The support both against the side walls and against the lower surface (10) of the base (C) is obtained by means of a suction system. Such a suction system can consist of two suction assemblies (11,12) provided in each of the blocks (see FIG. 2), making it possible, via suitable conduits opening into orifices provided on the side walls, to hold the strip of plated material as shown in Figure 2. Furthermore, as can be seen in FIG. 2, to adapt the envelope to the dimensions of the shoe to be produced, the base (10) supporting the lower part of the U-shaped sheet is constituted by a movable assembly in the form of a tray. (13) can be actuated vertically by means of a jack system (14).
La feuille de revêtement étant ainsi mise en place à l'intérieur de l'installation, la réalisation de l'en- veloppe fermée autour du pied de l'utilisateur est ob¬ tenue au moyen de deux ensembles conformateurs constitués essentiellement de barres soudeuses-coupeuses (15,16,17, 18). Les ensembles de coupe-thermosoudure seront identi¬ ques pour chacun des deux blocs (A,B) et peuvent être déplacés depuis une position escamotée à l'intérieur de chacun des blocs jusqu'à une position passant sensible¬ ment par le plan bissecteur des deux blocs.The covering sheet thus being placed inside the installation, the production of the closed envelope around the user's foot is ob¬ held by means of two shaping assemblies essentially consisting of sealing bars- cutters (15,16,17, 18). The heat-seal cutter assemblies will be identical for each of the two blocks (A, B) and can be moved from a retracted position inside each of the blocks to a position passing substantially through the bisector plane of the two blocks.
Selon une forme de réalisation préférentielle, une telle installation comporte également des moyens (20,21) permettant la mise en place d'une couche de renforcement dans la zone destinée à être disposée en-dessous du pied, ainsi que moyens (22) permettant de disposer à la péri¬ phérie de l'enveloppe un élément extensible (27) assurant son maintien parfait autour de la jambe de l'utilisateur.According to a preferred embodiment, such an installation also comprises means (20, 21) allowing the establishment of a reinforcing layer in the zone intended to be disposed below the foot, as well as means (22) allowing to have an expandable element (27) at the periphery of the envelope ensuring its perfect retention around the user's leg.
La mise en oeuvre d'une telle installation est la suivante.The implementation of such an installation is as follows.
Les galets d'entraînement (2) délivrent une certaine longueur de film (3) dans l'empreinte (20,21) destinée à former la surface de renforcement qui doit être rapportée en dessous de l'enveloppe de protection. Cette longueur de film est coupée et est maintenue contre la surface de l'un des éléments de l'empreinte (21). Le film (3) est à nouveau entraîné par les galets (2), passe au travers de la fente (8) et ses extrémités sont saisies par les pin¬ ces latérales (6,7). Il est tiré par lesdites pinces le long des éléments de guidage (4,5) (rails ou courroies), et descend contre la face interne du bloc (B) . A un ins¬ tant déterminé qui correspond au dessous du pied (semel¬ le), l'empreinte (20,21) thermosoude la partie coupée préalablement sur le film de matière ainsi débitée.The drive rollers (2) deliver a certain length of film (3) in the cavity (20,21) intended to form the reinforcing surface which must be attached below the protective envelope. This length of film is cut and is held against the surface of one of the elements of the impression (21). The film (3) is again driven by the rollers (2), passes through the slot (8) and its ends are gripped by the lateral pins (6,7). It is pulled by said pliers on along the guide elements (4,5) (rails or belts), and descends against the internal face of the block (B). At a determined point which corresponds to the bottom of the foot (sole), the imprint (20, 21) thermosolder the part cut beforehand on the film of material thus cut.
Cela étant fait, le film ou nappe (3) est entraînée à nouveau et vient recouvrir la surface interne du blocThis being done, the film or sheet (3) is driven again and covers the internal surface of the block
(A) en souhaitant donc la forme d'un U ouvert. Il est maintenu dans cette forme par les systèmes d'aspiration agissant contre les faces latérales.(A) thus wishing the shape of an open U. It is maintained in this form by the suction systems acting against the lateral faces.
La matière première (film ou tissu) étant ainsi mise en place, la personne introduit un pied à l'intérieur de l'espace compris entre les deux faces du U. Par tout moyen approprié tel que par exemple par pression du pied, on provoque le déplacement des éléments conformateurs proprement dits constitués par les barres thermosoudeuses (15,16,17,18). Ces barres sortent des blocs (1,2) et viennent donc envelopper la matière première de chaque côté du pied. On réalise donc une soudure et découpe selon deux lignes, l'une correspondant à l'avant (pied), 1'autre à 1'arrière.The raw material (film or fabric) being thus put in place, the person introduces a foot inside the space between the two faces of the U. By any suitable means such as for example by pressure of the foot, one causes the displacement of the actual shaping elements constituted by the heat-sealing bars (15,16,17,18). These bars come out of the blocks (1,2) and therefore come to wrap the raw material on each side of the foot. A weld is therefore produced and cut along two lines, one corresponding to the front (foot), the other to the rear.
Simultanément, ou après soudure et découpe, on dé¬ pose autour de la partie supérieure de l'enveloppe un élément extensible, tel que par exemple un ruban ou fil élastique (27), avantageusement autocollant, qui permet d'assurer le serrage autour de la jambe de l'utilisateur.Simultaneously, or after welding and cutting, there is placed around the upper part of the envelope an extensible element, such as for example an elastic tape or wire (27), advantageously self-adhesive, which makes it possible to tighten around the user's leg.
Les déchets sont éliminés, par exemple par aspira¬ tion au travers d'orifices prévus à la base du socle. Des moyens additionnels, tels que par exemple un système à vérins compresseurs et/ou traitement thermique peuvent être prévus dans ce socle pour compacter lesdits déchets. L'utilisateur ayant ainsi revêtu l'une de ses chaus¬ sures au moyen d'une enveloppe, peut recommencer l'opéra¬ tion sur l'autre chaussure.The waste is eliminated, for example by suction through holes provided at the base of the base. Additional means, such as for example a system with compressor cylinders and / or heat treatment can be provided in this base to compact said waste. The user having thus coated one of his chaus¬ sure by means of an envelope, can repeat the operation on the other shoe.
Un tel ensemble de conception particulièrement sim¬ ple permet donc de réaliser de manière économique et efficace des enveloppes protectrices, parfaitement étan- ches autour du pied d'une personne. Bien entendu, l'in¬ vention n'est pas limitée à l'exemple de réalisation décrit précédemment. Il pourrait être envisagé de modi¬ fier légèrement la forme des barres thermosoudeuses (15,16,17,18). De plus, si une seule position des barres thermosoudeuse et conformatrice est représentée dans les schémas annexés, une telle installation peut comporter des moyens permettant d'écarter plus ou moins lesdites barres l'une par rapport à l'autre afin de pouvoir réali¬ ser un réglage des dimensions de l'enveloppe formée en fonction de l'encombrement des chaussures à envelopper. Such a particularly simple design assembly therefore makes it possible to economically and effectively produce protective envelopes, perfectly sealed around the foot of a person. Of course, the invention is not limited to the embodiment described above. It could be envisaged to slightly modify the shape of the heat-sealing bars (15,16,17,18). In addition, if only one position of the heat-sealing and shaping bars is shown in the accompanying diagrams, such an installation may include means making it possible to spread said bars more or less relative to one another in order to be able to carry out an adjustment of the dimensions of the envelope formed as a function of the size of the shoes to be wrapped.

Claims

REVENDICATIONS
1/ Procédé pour la réalisation d'une enveloppe pro¬ tectrice autour de chacune des chaussures (ou similaires) portées par un utilisateur, caractérisé en ce que l'éla¬ boration de ladite enveloppe est réalisée sur le site même d'utilisation, directement sur la personne et ce, en mettant en oeuvre au moins la combinaison des opérations suivantes : - formation à partir d'une nappe plane (3) d'une coque ouverte en forme de U ;1 / Method for producing a protective envelope around each of the shoes (or the like) worn by a user, characterized in that the elaboration of said envelope is carried out on the site of use itself, directly on the person and this, by implementing at least the combination of the following operations: - formation from a flat sheet (3) of an open shell in the shape of a U;
- mise en place du pied chaussé de l'utilisateur à l'intérieur de la coque ainsi formée ;- Installation of the user's shod foot inside the shell thus formed;
- fermeture de ladite coque selon deux lignes con- tinues recouvrant sensiblement le plan médian du U formé par la coque, l'une recouvrant l'avant du pied et remontant le long de la jambe, l'autre, à l'arrière du talon, également sur une hauteur déterminée de la jambe.closing of said shell along two continuous lines substantially covering the median plane of the U formed by the shell, one covering the front of the foot and going up along the leg, the other at the back of the heel , also on a specific height of the leg.
2/ Procédé selon la revendication 1, caractérisé en ce que le matériau destiné à former l'enveloppe protec¬ trice est constitué par une nappe non tissée ou un film à base d'une matière permettant d'obtenir un thermosoudage ou thermocollage de ladite nappe.2 / A method according to claim 1, characterized in that the material intended to form the protective envelope consists of a non-woven sheet or a film based on a material making it possible to obtain a heat-sealing or heat-bonding of said sheet .
3/ Procédé selon l'une des revendications 1 à 2, caractérisé en ce que lors de la mise en forme de U de la feuille plane, on lui associe un élément de renfort ad- ditionnel disposé dans une zone correspondant au dessous du pied.3 / Method according to one of claims 1 to 2, characterized in that when the U-shaped sheet is formed, there is associated with it an additional reinforcing element disposed in a zone corresponding to the underside of the foot.
4/ Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'on rapporte un élément de serrage (ruban extensible) autour de la partie supérieure, afin d'assurer le maintien autour de la jambe de l'utilisa¬ teur. 5/ Installation pour la mise en oeuvre du procédé selon l'une des revendications 1 à 4, caractérisée en ce qu'elle est constituée par un ensemble disposé sur le site même d'utilisation et qui comporte, montés sur une base ou bloc support (C) , de manière fixe, deux blocs élémentaires (A,B) de formation de l'enveloppe autour de la chaussure de l'utilisateur et dont la structure est telle que :4 / Method according to one of claims 1 to 3, characterized in that one reports a clamping element (stretch tape) around the upper part, in order to ensure the maintenance around the leg of the user tor. 5 / Installation for the implementation of the method according to one of claims 1 to 4, characterized in that it is constituted by an assembly arranged on the site of use and which comprises, mounted on a base or support block (C), in a fixed manner, two elementary blocks (A, B) for forming the envelope around the user's shoe and whose structure is such that:
- l'un des blocs (B) comporte des moyens permettant de délivrer une nappe (3) (non tissé ou film) plane à un ensemble permettant de mettre ladite nappe sous forme d'un U ouvert et dont les faces latérales sont maintenues plaquées contre les surfaces des deux blocs élémentaires (A,B) ; - les deux blocs élémentaires (A,B) comportent des moyens qui, en coopération, permettent de conformer la¬ dite nappe plane (3) en forme de U autour de la chaussure de l'utilisateur et de solidariser les faces en regard de cette nappe selon des lignes passant par le plan bissec- teur des deux blocs latéraux de conformation (A,B), et disposées l'une sur l'avant du pied, l'autre à l'arrière du talon et ce, sur une hauteur déterminée de la jambe.- one of the blocks (B) comprises means making it possible to deliver a flat sheet (3) (nonwoven or film) to an assembly making it possible to put said sheet in the form of an open U and whose side faces are kept pressed against the surfaces of the two elementary blocks (A, B); - The two elementary blocks (A, B) comprise means which, in cooperation, make it possible to shape the said flat sheet (3) in the shape of a U around the shoe of the user and to secure the facing faces of this ply along lines passing through the bisector plane of the two lateral shaping blocks (A, B), and arranged one on the front of the foot, the other at the back of the heel and this, over a height determined leg.
6/ Installation selon la revendication 5, caractéri- sée en ce que les moyens permettant d'assurer la liaison de la feuille pour former l'enveloppe autour de la chaus¬ sure de l'utilisateur, sont constitués par un ensemble de barres escamotables mobiles (15,16,17,18) permettant d'assurer simultanément la soudure et la découpe de la feuille selon le profil souhaité autour de la chaussure.6 / installation according to claim 5, characterized in that the means for ensuring the connection of the sheet to form the envelope around the chaus¬ sure of the user, are constituted by a set of movable retractable bars (15,16,17,18) for simultaneously ensuring the welding and cutting of the sheet according to the desired profile around the shoe.
7/ Installation selon la revendication 6, caractéri¬ sée en ce que les barres escamotables sont réglables en écartement pour s'adapter aux différentes tailles de la chaussure à recouvrir. 8/ Installation selon l'une des revendications 5 à7 / Installation according to claim 6, caractéri¬ in that the retractable bars are adjustable in spacing to adapt to the different sizes of the shoe to be covered. 8 / Installation according to one of claims 5 to
7, caractérisée en ce que les moyens permettant de mettre la feuille de matière (3) sous la forme d'une enveloppe en U sont constitués par un ensemble à pinces mobiles (6,7) le long de deux rails de guidage opposés (4,5), disposés entre les deux blocs (A,B) .7, characterized in that the means for putting the sheet of material (3) in the form of a U-shaped envelope are constituted by a set of movable clamps (6,7) along two opposite guide rails (4 , 5), arranged between the two blocks (A, B).
9/ Installation selon l'une des revendications 5 à9 / Installation according to one of claims 5 to
8, caractérisée en ce que le maintien de la feuille en forme de U entre les deux blocs (A,B) est obtenu par aspiration.8, characterized in that the retention of the U-shaped sheet between the two blocks (A, B) is obtained by suction.
10/ Installation selon l'une des revendications 5 à10 / Installation according to one of claims 5 to
9, caractérisée en ce qu'elle comporte des moyens permet- tant de réaliser un renfort de la zone de la feuille destinée à être disposée en dessous de la chaussure, ainsi que des moyens permettant de disposer à la partie supérieure de ladite feuille un élément de serrage, tel qu'un élément élastique (ruban autocollant) . 9, characterized in that it comprises means allowing a reinforcement of the zone of the sheet intended to be arranged below the shoe, as well as means making it possible to have an element at the upper part of said sheet such as an elastic element (self-adhesive tape).
EP19910909762 1990-05-04 1991-04-30 Method and apparatus for producing a protective covering for shoes, boots, etc. Withdrawn EP0480022A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9005860 1990-05-04
FR9005860A FR2661638B1 (en) 1990-05-04 1990-05-04 PROCESS AND INSTALLATION FOR THE MANUFACTURE OF A PROTECTIVE COVER FOR SHOES, BOOTS ...

Publications (1)

Publication Number Publication Date
EP0480022A1 true EP0480022A1 (en) 1992-04-15

Family

ID=9396491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910909762 Withdrawn EP0480022A1 (en) 1990-05-04 1991-04-30 Method and apparatus for producing a protective covering for shoes, boots, etc.

Country Status (5)

Country Link
EP (1) EP0480022A1 (en)
JP (1) JPH04506924A (en)
CA (1) CA2060324A1 (en)
FR (1) FR2661638B1 (en)
WO (1) WO1991016829A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2144360B1 (en) * 1998-03-11 2001-01-16 Bellas Bello Ramon Jose PROCEDURE FOR THE MANUFACTURE OF COUPLINGS AND COVERS FOR FOOTWEAR, AND COUPLINGS AND COVERS MANUFACTURED ACCORDING TO THE SAME.
CN201061444Y (en) * 2007-06-13 2008-05-21 谢基路 Overshoes machine
US20110272440A1 (en) 2008-03-26 2011-11-10 Robert Heller Shoe cover removal apparatus
US9474321B2 (en) 2014-03-25 2016-10-25 Protexer, Inc. Shoe cover device
US9907422B2 (en) 2015-08-20 2018-03-06 Protexer, Inc. Bootie level alert

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610568B1 (en) * 1987-02-10 1989-04-21 Cinqualbre Jacques METHOD FOR THE AUTOMATIC WRAPPING OF A WEARED FOOTWEAR BY A FILM OF HEAT-SHRINKABLE MATERIAL AND MEANS FOR IMPLEMENTING THE SAME
FR2627151B1 (en) * 1988-02-11 1990-07-20 Vuillemin Systemes Sa DEVICE FOR WRAPPING SHOES IN A SYNTHETIC MATERIAL FILM AND METHOD USED THEREWITH

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9116829A1 *

Also Published As

Publication number Publication date
JPH04506924A (en) 1992-12-03
CA2060324A1 (en) 1991-11-05
FR2661638B1 (en) 1992-07-10
FR2661638A1 (en) 1991-11-08
WO1991016829A1 (en) 1991-11-14

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