EP0185588B1 - Over-boot - Google Patents

Over-boot Download PDF

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Publication number
EP0185588B1
EP0185588B1 EP85402427A EP85402427A EP0185588B1 EP 0185588 B1 EP0185588 B1 EP 0185588B1 EP 85402427 A EP85402427 A EP 85402427A EP 85402427 A EP85402427 A EP 85402427A EP 0185588 B1 EP0185588 B1 EP 0185588B1
Authority
EP
European Patent Office
Prior art keywords
sole
assembled
overshoe
nitrile rubber
textile upper
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.)
Expired
Application number
EP85402427A
Other languages
German (de)
French (fr)
Other versions
EP0185588A1 (en
Inventor
Jean-Claude Behar
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.)
Nettoyage Et De Desinfection D'ivry SA Ste
Original Assignee
Nettoyage Et De Desinfection D'ivry SA Ste
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 Nettoyage Et De Desinfection D'ivry SA Ste filed Critical Nettoyage Et De Desinfection D'ivry SA Ste
Priority to AT85402427T priority Critical patent/ATE42024T1/en
Publication of EP0185588A1 publication Critical patent/EP0185588A1/en
Application granted granted Critical
Publication of EP0185588B1 publication Critical patent/EP0185588B1/en
Expired legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to overheating articles such as boots or ankle boots intended to be coated over their shoes by persons having to enter or stay in clean and sterile rooms, in particular in surgical operating rooms, laboratories and workshops for the manufacture of electronic components and equipment.
  • overheating articles must be capable of being cleaned and sterilized for re-use and must therefore be able to withstand repeated washing with detergents and / or solvents, in particular fluorinated solvents, at high temperatures, in practice greater than 150 °, for autoclave passage, as well as to radiation such as ⁇ or y radiation.
  • overheating articles comprising a textile upper assembled, by hot gluing, to a rubber or similar sole, in particular of polyurethane comprising a shoe extended upwards by a substantially vertical peripheral edge.
  • the polyurethane sole is produced by injection molding.
  • the superheating articles thus produced have, by the nature of the material of the sole, of its manufacturing process as well as of its assembly with the textile upper, various notable drawbacks.
  • the sole made of polyurethane is not antistatic, which prevents the use of the over-shoe article in premises where static electricity phenomena are likely to occur such as, for example, micro laboratories. -electronic.
  • the sole is slippery on wet ground and offers relatively low resistance to abrasion and cuts.
  • the method of manufacturing the sole by injection molding also has the disadvantage of using multi-part molds which are reflected on the sole by zones, corresponding to the joint planes of the mold, having asperities increasing the risk of 'subscription.
  • the present invention proposes to produce an overheating article such as a boot or a bootie which, while having the qualities allowing it to be reused after cleaning and / or sterilization, avoids the drawbacks mentioned above.
  • the article of overshoe according to the invention is essentially characterized in that the sole is made of nitrile rubber, in one piece by compression molding, and is assembled in a separable manner with the textile upper preferably in the vicinity of the upper part of its peripheral edge.
  • the upper and the sole are assembled by sewing inside a peripheral groove formed in the outer wall of the peripheral edge of the sole.
  • the nitrile rubber used according to the present invention for the production of the sole is a non-halogenated nitrile rubber added with plasticizers.
  • the material constituting the sole can be made electrically conductive, in particular by adding carbon black.
  • the overheating boot comprises a sole 1 and a textile rod, thin and flexible, for example made of polyester, which is tubular in shape and comprises, at the front part, a closure means such as a zipper 3a, in the upper part of the means such as a tab 3b to be fixed by snaps tending to narrow the entry of the rod 2 once the boot is in place.
  • a closure means such as a zipper 3a
  • a tab 3b to be fixed by snaps tending to narrow the entry of the rod 2 once the boot is in place.
  • the retention of the boot is ensured by a strap 3c provided with a locking member, in particular with 3d snap.
  • the sole 1 compression molded in a single block, made of non-halogenated nitrile rubber, by heating at a temperature of 162 ° C for about 10 minutes has a thickness of 2.5 mm and a substantially “anatomical” shape in that well similar for both feet, it roughly molds the shape of users' shoes.
  • This sole the outer surface of which is grained, consists of a shoe 4 secured to an edge 5 which is provided at its upper part with a peripheral groove 6.
  • the assembly of the upper 2 to the sole 1 is done by sewing 7 of a hem 8 internally to the sole 1, sewing practiced at the bottom of the groove 6.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Surgical Instruments (AREA)
  • Soil Working Implements (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

1. Overshoe having a sole made of rubber or the like and comprising a base-piece extended upwards by a substantailly vertical peripheral flange and a textile upper assembled on the sole, characterized in that the sole (1) is made from nitrile rubber compression-moulded as a single piece and is assembled so as to be separable from the textile upper (2).

Description

La présente invention est relative à des articles surchaussants tels que des bottes ou bottillons destinés à être revêtus par dessus leurs chaussures par des personnes devant pénétrer ou séjourner dans des salles propres et ou stériles, notamment dans des salles d'opération chirurgicale, les laboratoires et les ateliers de fabrication de composants et d'appareillages électroniques.The present invention relates to overheating articles such as boots or ankle boots intended to be coated over their shoes by persons having to enter or stay in clean and sterile rooms, in particular in surgical operating rooms, laboratories and workshops for the manufacture of electronic components and equipment.

De tels articles surchaussants doivent pouvoir être nettoyés et stérilisés en vue de leur réutilisation et doivent par conséquent pouvoir résister à des lavages répétés avec des détergents et/ou des solvants, notamment des solvants fluorés, à des températures élevées, dans la pratique supérieure à 150°, pour un passage en autoclave, ainsi qu'à des rayonnements tels que des rayonnements β ou y.Such overheating articles must be capable of being cleaned and sterilized for re-use and must therefore be able to withstand repeated washing with detergents and / or solvents, in particular fluorinated solvents, at high temperatures, in practice greater than 150 °, for autoclave passage, as well as to radiation such as β or y radiation.

On connaît déjà des articles surchaussants comprenant une tige textile assemblée, par collage à chaud, à une semelle en caoutchouc ou analogue, notamment en polyuréthane comprenant un patin prolongé vers le haut par un bord périphérique sensiblement vertical. La semelle en polyuréthane est réalisée par moulage par injection.There are already known overheating articles comprising a textile upper assembled, by hot gluing, to a rubber or similar sole, in particular of polyurethane comprising a shoe extended upwards by a substantially vertical peripheral edge. The polyurethane sole is produced by injection molding.

Les articles surchaussants ainsi réalisés présentent de par la nature du matériau de la semelle, de son procédé de fabrication ainsi que de son assemblage à la tige textile différents inconvénients notables.The superheating articles thus produced have, by the nature of the material of the sole, of its manufacturing process as well as of its assembly with the textile upper, various notable drawbacks.

Ainsi, par exemple, la semelle réalisée en polyuréthane n'est pas antistatique, ce qui empêche l'utilisation de l'article surchaussant dans des locaux où sont susceptibles d'apparaître des phénomènes d'électricité statique tels que par exemple les laboratoires de micro-électronique.Thus, for example, the sole made of polyurethane is not antistatic, which prevents the use of the over-shoe article in premises where static electricity phenomena are likely to occur such as, for example, micro laboratories. -electronic.

De plus, la semelle est glissante sur sol mouillé et offre une résistance relativement faible à l'abrai- son et aux coupures.In addition, the sole is slippery on wet ground and offers relatively low resistance to abrasion and cuts.

Le procédé de fabrication de la semelle par moulage par injection présente en outre l'inconvénient de mettre en oeuvre des moules en plusieurs parties se traduisant sur la semelle par des zones, correspondant aux plans de joint du moule, comportant des aspérités accroissant le risque d'abraison.The method of manufacturing the sole by injection molding also has the disadvantage of using multi-part molds which are reflected on the sole by zones, corresponding to the joint planes of the mold, having asperities increasing the risk of 'subscription.

Enfin, du fait du processus de fixation de la semelle sur la tige, les deux éléments ne peuvent être séparés l'un de l'autre et l'endommagement de l'un des éléments entraîne le rebut de l'ensemble de l'article.Finally, due to the process of attaching the sole to the upper, the two elements cannot be separated from one another and damage to one of the elements results in the entire article being rejected. .

La présente invention se propose de réaliser un article surchaussant tel qu'une botte ou un bottillon qui, tout en présentant les qualités lui permettant d'être réutilisé après nettoyage et/ou stérilisation, évite les inconvénients mentionnés ci- dessus.The present invention proposes to produce an overheating article such as a boot or a bootie which, while having the qualities allowing it to be reused after cleaning and / or sterilization, avoids the drawbacks mentioned above.

L'article surchaussant selon l'invention, se caractérise essentiellement par le fait que la semelle est réalisée en caoutchouc nitrile, d'un seul tenant par moulage par compression, et est assemblée de manière séparable à la tige textile de préférence au voisinage de la partie supérieure de son bord périphérique.The article of overshoe according to the invention is essentially characterized in that the sole is made of nitrile rubber, in one piece by compression molding, and is assembled in a separable manner with the textile upper preferably in the vicinity of the upper part of its peripheral edge.

Dans un mode particulier de réalisation, l'assemblage de la tige et de la semelle s'effectue par couture à l'intérieur d'une gorge périphérique ménagée dans la paroi extérieure du bord périphérique de la semelle.In a particular embodiment, the upper and the sole are assembled by sewing inside a peripheral groove formed in the outer wall of the peripheral edge of the sole.

De préférence, le caoutchouc nitrile utilisé selon la présente invention pour la réalisation de la semelle est un caoutchouc nitrile non halogéné additionné de plastifiants.Preferably, the nitrile rubber used according to the present invention for the production of the sole is a non-halogenated nitrile rubber added with plasticizers.

Dans des applications particulières le matériau constitutif de la semelle peut être rendu électriquement conducteur, notamment par adjonction de noir de carbone. On peut ainsi conférer à la semelle une résistivité de par exemple 7,4 MQjcm2 mesurée selon la norme DIN 4843 ce qui permet d'utiliser l'article chaussant selon l'invention dans des ateliers ou laboratoires par exemple de micro-électronique où le plancher est rendu conducteur de l'électricité.In particular applications, the material constituting the sole can be made electrically conductive, in particular by adding carbon black. We can thus give the sole a resistivity of for example 7.4 MQjcm2 measured according to DIN 4843 standard which allows the footwear according to the invention to be used in workshops or laboratories for example of microelectronics where the floor is made conductive of electricity.

Dans le but de mieux faire comprendre l'invention, on va maintenant en décrire à titre d'exemple nullement limitatif un mode de réalisation particulier en se référant au dessin annexé dans lequel:

  • - la fiqure 1 est une vue en perspective d'une botte surchaussante réalisée selon l'invention, et
  • - la figure 2 une vue partielle en coupe illustrant l'assemblage de la tige et de la semelle.
In order to better understand the invention, we will now describe by way of nonlimiting example a particular embodiment with reference to the accompanying drawing in which:
  • FIG. 1 is a perspective view of an overheating boot produced according to the invention, and
  • - Figure 2 a partial sectional view illustrating the assembly of the upper and the sole.

Comme on le voit sur le dessin, la botte surchaussante comprend une semelle 1 et une tige 2 textile, mince et souple, par exemple en polyester, laquelle est de forme tubulaire et comporte, à la partie avant, un moyen de fermeture tel qu'une fermeture à glissière 3a, à la partie haute des moyens tels qu'une patte 3b à fixer par des boutons-pression tendant à rétrécir l'entrée de la tige 2 une fois la botte mise en place. La retenue de la botte est assurée par une sangle 3c munie d'un organe de verrouillage, notamment à encliquetage 3d.As can be seen in the drawing, the overheating boot comprises a sole 1 and a textile rod, thin and flexible, for example made of polyester, which is tubular in shape and comprises, at the front part, a closure means such as a zipper 3a, in the upper part of the means such as a tab 3b to be fixed by snaps tending to narrow the entry of the rod 2 once the boot is in place. The retention of the boot is ensured by a strap 3c provided with a locking member, in particular with 3d snap.

La semelle 1 moulée par compression en un seul bloc, en caoutchouc nitrile non halogéné, par chauffage à une température de 162 °C pendant environ 10 minutes présente une épaisseur de 2,5 mm et une forme sensiblement «anatomique» en ce sens que bien que semblable pour les deux pieds, elle épousse grossièrement la forme des chaussures des usagers.The sole 1 compression molded in a single block, made of non-halogenated nitrile rubber, by heating at a temperature of 162 ° C for about 10 minutes has a thickness of 2.5 mm and a substantially “anatomical” shape in that well similar for both feet, it roughly molds the shape of users' shoes.

Cette semelle dont la surface extérieure est grainée, est constituée d'un patin 4 solidaire d'un bord 5 lequel est pourvu à sa partie supérieure d'une gorge périphérique 6.This sole, the outer surface of which is grained, consists of a shoe 4 secured to an edge 5 which is provided at its upper part with a peripheral groove 6.

L'assemblage de la tige 2 à la semelle 1 se fait par couture 7 d'un ourlet 8 intérieurement à la semelle 1, couture pratiquée au fond de la gorge 6.The assembly of the upper 2 to the sole 1 is done by sewing 7 of a hem 8 internally to the sole 1, sewing practiced at the bottom of the groove 6.

De cette manière la tige 2 et la semelle 1 sont parfaitement séparables l'une de l'autre, permettant ainsi le remplacement seulement de l'une de ces parties.In this way the rod 2 and the sole 1 are perfectly separable from one another, thus allowing the replacement only of one of these parts.

Enfin, la présence de la couture 7 au fond de la gorge 6 assure la protection du fil de ladite couture.Finally, the presence of the seam 7 at the bottom of the groove 6 ensures the protection of the wire of said seam.

Claims (6)

1. Overshoe having a sole made of rubber or the like and comprising a base-piece extended upwards by a substantially vertical peripheral flange and a textile upper assembled on the sole, characterized in that the sole (1) is made from nitrile rubber compression-moulded as a single piece and is assembled so as to be separable from the textile upper (2).
2. Overshoe according to Claim 1, characterized in that the sole (1) and the textile upper (2) are assembled together in the vicinity of the top part of the peripheral flange (5) of the sole.
3. Overshoe according to either one of Claims 1 and 2, in which the bottom part of the upper is assembled by means of stitching onto the sole, characterized in that this stitch (7) is provided inside a peripheral groove (6) formed in the flange (5).
4. Overshoe according to any one of Claims 1 to 3, characterized in that the sole (1) is made of non-halogenated nitrile rubber.
5. Overshoe according to any one of Claims 1 to 4, characterized in that the sole (1) is made of nitrile rubber to which plasticizers have been added.
6. Overshoe according to any one of Claims 1 to 5, characterized in that the sole is made electrically conductive, notably through the addition of carbon black.
EP85402427A 1984-12-06 1985-12-06 Over-boot Expired EP0185588B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85402427T ATE42024T1 (en) 1984-12-06 1985-12-06 BOOTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8418631A FR2574259B1 (en) 1984-12-06 1984-12-06 OVERHEADING BOOT
FR8418631 1984-12-06

Publications (2)

Publication Number Publication Date
EP0185588A1 EP0185588A1 (en) 1986-06-25
EP0185588B1 true EP0185588B1 (en) 1989-04-12

Family

ID=9310309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85402427A Expired EP0185588B1 (en) 1984-12-06 1985-12-06 Over-boot

Country Status (5)

Country Link
EP (1) EP0185588B1 (en)
JP (1) JPS61191301A (en)
AT (1) ATE42024T1 (en)
DE (2) DE185588T1 (en)
FR (1) FR2574259B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8602995A (en) * 1986-11-25 1988-06-16 Tno FOOT PROTECTOR.
US4788780A (en) * 1987-03-02 1988-12-06 Boggs Ernest R Overboot
JPH0722081Y2 (en) * 1989-05-16 1995-05-24 勇一 宇野 Folding boots
US5765297A (en) * 1994-08-16 1998-06-16 Cooper; Jeffrey A. Protective overshoe
DE19505319C2 (en) * 1995-02-17 1998-07-09 Helmut Ruehrschneck shoe
US5878512A (en) * 1997-05-19 1999-03-09 Cooper; Jeffrey A. Protective overshoe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB563211A (en) * 1942-10-31 1944-08-03 Geoffrey Harley Beetson Improved method of manufacturing felt boots or footwear, and the resulting products
FR1008167A (en) * 1950-01-10 1952-05-14 Method of manufacturing boots and the like in molded rubber with canvas foot
US2686376A (en) * 1951-08-28 1954-08-17 Burkholz Joseph Separable sectional foot apparel
US3281624A (en) * 1963-07-22 1966-10-25 Stephen I Patchen Electrically conductive elastomeric composite
DE7717933U1 (en) * 1977-06-07 1977-10-06 Linnemann, Friedrich, 4019 Monheim Shoe with a sawtooth-shaped sewing edge
FR2478439A1 (en) * 1980-03-21 1981-09-25 Egermann Christian Shoe for use when driving car - has heel of sole with projecting part at back with horizontal ribs or grooves
IT8123007V0 (en) * 1981-09-23 1981-09-23 Pirelli OVERSHOE RESISTANT TO CHEMICAL AGENTS IN THE LIQUID OR GASEOUS STATE AND ORGANIC AGENTS.
FR2540713A1 (en) * 1983-02-10 1984-08-17 Ouest Cie Composite-sole structure, particularly for safety shoes

Also Published As

Publication number Publication date
JPS61191301A (en) 1986-08-26
FR2574259B1 (en) 1987-02-06
FR2574259A1 (en) 1986-06-13
EP0185588A1 (en) 1986-06-25
ATE42024T1 (en) 1989-04-15
DE185588T1 (en) 1987-01-15
DE3569322D1 (en) 1989-05-18

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