EP1025877A1 - Breathing protection mask for intermittent use - Google Patents

Breathing protection mask for intermittent use Download PDF

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Publication number
EP1025877A1
EP1025877A1 EP00400359A EP00400359A EP1025877A1 EP 1025877 A1 EP1025877 A1 EP 1025877A1 EP 00400359 A EP00400359 A EP 00400359A EP 00400359 A EP00400359 A EP 00400359A EP 1025877 A1 EP1025877 A1 EP 1025877A1
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EP
European Patent Office
Prior art keywords
jaw
protection mask
respiratory protection
person
filter element
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Withdrawn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
EP00400359A
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German (de)
French (fr)
Inventor
Thierry Templai
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Individual
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Individual
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Publication date
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Publication of EP1025877A1 publication Critical patent/EP1025877A1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/06—Mouthpieces; Nose-clips

Definitions

  • the present invention relates to a respiratory protection mask for use intermittent.
  • a filtering part intended to filter air pollutants the most common consist of two parts: on the one hand, a filtering part with single use or can be cleaned or changed, intended to cover effectively both the wearer's mouth and nose and, on the other hand, a device for attachment which is associated with the filtering part, to press it down and hold it on the wearer's breathing ports.
  • the person wishing to put on the mask must, on the one hand, grasp the filtering part with one hand to apply it on his face and, on the other hand, using with his other hand, pass the ties to the back of his head.
  • air pollutants often come from handling of chemicals handled by the person wearing the mask. This is for example the case of soil treatment products, plants, or animals in agriculture, such as weed killers, fungicides, etc. These treatment products are packaged and marketed with concentrations very strong, and have teratogenic or mutagenic carcinogenic effects when inhaled or contacted with the skin. In the latter case, certain products pass directly through the pores and can cause poisoning. They are therefore very toxic to humans.
  • the operator in charge of the operation use an industrial sprayer that should be moved above the surface to treat, with an agricultural tractor for example.
  • the operator must, at regular intervals, recharge the sprayer with water and soil treatment products, presented in powder or liquid form, in a fixed proportion.
  • the operator must use as protection, at least a respiratory mask, a pair of gloves and Protective glasses.
  • the object of the invention is therefore to propose a protective mask breathing machine for intermittent use, easy to put on with one hand, and the break does not create a risk of contamination by the hand placing it.
  • a respiratory protection mask is characterized in that the fixing device is a jaw of cross section in shape of Tee, so as to allow its attachment by the teeth of a person, said jaw connecting a person's oral cavity with the part upstream of a filter element by isolating the upstream part from the downstream part of the element filtering when the respiratory mask is worn by the person.
  • the jaw is fixed in a interior passage of a first cylinder by at least one partition, said passage interior opening opposite to the jaw in a double outlet.
  • the double outlet comprises, on the one hand, a first outlet in which is housed a filter element and, on the other share, a second outlet in which is housed an expulsion valve.
  • the first cylinder is extended jaw side by a covering face provided to match the lip part of a person.
  • a nose clip is fixed radially on the first cylinder.
  • the jaw is extended axially by a mouth, a flange mounted sliding in a cylindrical housing a cylindrical support, a rod passing through the cylindrical support, and a pusher; an imprint is placed on the outer wall of the cylindrical support near one of its ends, and allows its gripping by two fingers while allowing the operation of the pusher by a third finger.
  • a compression spring acts on the flange so as to bring the jaw closer to the cylindrical support.
  • an interior recess crosses axially the jaw and opens laterally into a cylindrical part of the mouth, located outside the cylindrical support and in the upstream part of the filter element.
  • the filter element is mounted in a groove made in the outer wall of the cylindrical support.
  • the respiratory protection mask shown is symmetrical in the median plane of FIG. 1.
  • This mask includes a covering face 100 provided to cover by an interior wall 110, the labial portion 410 of a 400 person likely to wear the respiratory protection mask.
  • Wall interior 110 has a semi-cylindrical profile of radius R with axis XX ′ in FIG. 1.
  • the middle part 130 of the covering face 100 is higher than its edges side 140 connected by a radius N.
  • the covering face 100 has in its middle part an opening 150 of circular appearance which opens, perpendicular to the interior wall 110, in a filtering part 200 consisting of a first cylinder 210, the length is sufficient to allow the gripping of the protective mask respiratory, by its external wall T, with two fingers 420 and 421 with one hand, in the occurrence of the thumb and index finger in FIG. 1.
  • the first cylinder 210 includes an interior passage 220 of appearance cylindrical which carries at the border of the circular opening 150 at least one partition 230 of small thickness radially crossing the interior passage 220 of the first cylinder 210.
  • This partition 230 extends inside the covering face 100 by an arm 240 which supports a T-shaped jaw 250 in the section plane of the Fig. 1.
  • Jaw 250 may take the form of a cylinder segment or a parallelepiped whose inner wall 260 is positioned at a distance substantially constant with respect to the outer wall 270.
  • This jaw can be introduced into the oral cavity 445 and pinched behind the teeth 440 of person 400.
  • the interior passage 220 of the first cylinder 210 opens opposite jaw 250 in a double exit 275 in the form of a bezel visible from the front Fig. 2.
  • This double exit 275 leads to the outside.
  • each outlet 275a and 275b is visible in section in FIG. 1.
  • the first outlet 275a visible in the upper part of this FIG. 1 includes an internal bore 280a in which is housed a filter element 290.
  • This filter element 290 is composed of organic or synthetic fibers with controlled porosity. It can optionally be removed from the first exit 275a to allow its cleaning or be replaced by a new element.
  • the second outlet 275b visible in the lower part of FIG. 1 has a inner bore 280b in which is housed an expulsion valve 295.
  • This valve 295 consists of a flexible valve 296 fixed in the internal bore 280b, and the periphery 297 rests in the absence of expiration of the person 400, on a crown 281b of the inner bore 280b.
  • the upstream part 215 of the filter element 290 and of the expulsion valve 295 is then connected to the circular appearance opening 150.
  • the downstream part 216 of the element filter 290 is exposed to ambient air.
  • a nose clip 300 is attached radially to the first cylinder 210.
  • the nose clip 300 consists of two branches 310a and 310b which are positioned opposite each other.
  • Each branch 310a or 310b has a flexible curved profile which is attached by one of its ends to the external wall of the first cylinder 210.
  • each branch 310a or 310b takes the form of a ball 320a or 320b.
  • the arrangement of the branches 310a or 310b allows the two balls 320a or 320b to exert against each other a force F sufficient to pinch the septum 450 of the nose 455 of the person 400 as seen in FIG. 2.
  • Person 400 who wishes to wear the respiratory protection mask handles as follows. Person 400 catches between thumb 420 and the index 421 the outer wall T of the first cylinder 210, and approaches towards its face the respiratory protection mask. The person then slides the balls 320a and 320b of the nose clip 300, covering the nasal septum 450 with its nose 455 to obstruct the nasal passage.
  • the person introduces the jaw 250 into his oral cavity 445, and comes rest the inner wall 110 of the covering face 100 on its part labial 410 so as to isolate the upstream part 215 from the downstream part 216 of the element filter 290.
  • the respiratory protection mask in place, the person can breathe through the mouth through the interior passage 220.
  • the exhalation takes place through the expulsion valve 295, while inspiration takes place through the filter element 290.
  • the respiratory protection mask of the invention is of a construction simple and has the advantage of being able to be set up and removed very easily at using one hand. Its filtering part and its mouth are not contaminated by dirt or pollutants which can be deposited on the gloved hands or not the person when handling dangerous products.
  • the person's gloved or ungloved hands do not touch the person's skin during application or removal of the respiratory protection mask.
  • Fig. 3 shows a second alternative embodiment of the protective mask respiratory system using a wrap-around commercial filter element.
  • the mask consists of a cylindrical support 500 comprising on its wall exterior 510 and positioned at one of its ends 520, an imprint 530 allowing the gripping of the outer wall 510 of the cylindrical support 500 between two fingers 420 and 422 with one of his hands.
  • This imprint 530 can for example be made on the entire periphery of the outer wall 510.
  • a groove 540 is also produced on the outer wall 510 and makes it possible to receive a filter element 600 of the flexible or semi-rigid type, through an opening 610 practiced in its filtering part 620.
  • the filtering element 600 is mounted so as to that its upstream part 630 can cover the nose 455 and the mouth 460 of the 400 person wearing the mask.
  • the downstream part 631 of the filter element 600 is exposed to ambient air.
  • An expulsion valve 640 of a construction similar to that described in the Fig. 1 is added through the filtering part 620.
  • the cylindrical support 500 comprises a succession of coaxial housings.
  • a first cylindrical housing 550 opens, on the one hand, through the end 520 and, on the other hand, in a second cylindrical housing 560 by a first shoulder 561.
  • the internal diameter of the second cylindrical housing 560 is of dimension larger than the internal diameter of the first housing cylindrical 550.
  • a cylindrical lumen 565 connects through a second shoulder 562, the second cylindrical housing 560, with a second end 570 of the support cylindrical 500.
  • a conduit 700 in the shape of a part of revolution passes right through the cylindrical support 500.
  • the conduit 700 comprises a mouth 705 consisting a jaw 710 of section 711 cylindrical or oval, emerging from the cylindrical support 500, and can be introduced into the oral cavity 445 and pinched at the back of the teeth 440 of the person.
  • the 705 mouthpiece takes the form of a T in the cut of the Fig. 3.
  • the conduit 700 also comprises a cylindrical part 720 which can slide in the cylindrical opening 565, a flange 730 able to move in the second cylindrical housing 560.
  • a rod 740 extends the collar 730 and passes through the first housing cylindrical 550 opening at the end 520 of the cylindrical support 500.
  • An O-ring 745 mounted on the rod 740 seals between the rod 740 and the first cylindrical housing 550.
  • the free end of the rod 740 includes a pusher 750 which can be actuated by a third finger 421 of one of the person's hands for the purpose of slide the conduit 700 through the cylindrical support 500.
  • An internal recess 760 passes axially through the jaw 710 and opens out laterally in the cylindrical part 720 of the mouth 705, as well as in the upstream part 630 of the filter element 600.
  • a compression spring 800 is housed in the second cylindrical housing 560 between the second shoulder 562 and the collar 730, pushing it into abutment naturally on the first shoulder 561.
  • a filter element 600 is mounted in the groove 540.
  • the person 400 grasps the imprint 530 of the respiratory protection mask using two fingers 420 and 422, for example the thumb and middle finger, then, thanks to a third finger 421, for example the index finger, presses and axially displaces the pusher 750 while counteracting the compression spring 800.
  • the mouth 705 comes out more from the support cylindrical 500 and can be introduced into the oral cavity 445, when the support cylindrical 500 provided with its filtering element 600 is applied around the nose 450 and the mouth 460 of the person 400. Under these conditions, the upstream part 630 is isolated from the downstream part 631 of the filter element 620.
  • the person 400 then pinches the jaw 710 at the back of his teeth 440.
  • Compression spring 800 pushes the flange 730 towards the first shoulder 561.
  • the cylindrical support 500 provided with its filter element 600 is close to the jaw 710, which has the effect of allowing the filter element 600 to apply correctly around the edge of the nose 450 and the mouth 460 of the 400 person, to ensure a proper seal with the external environment.
  • the respiratory protection mask is then put on and the two fingers 420 and 422 of the person can leave the 530 fingerprint.
  • the person can breathe through the nose 420, or through the mouth 460 thanks to the internal recess 760 opening into the upstream part 630 of the filter element 600.
  • the exhaled air is evacuated through the expulsion valve 640, while the air inspired is filtered by the filtering part 620 of the filtering element 600.
  • the person To remove the respiratory protection mask, the person retains it while holding the imprint 530 between his two fingers 420 and 421 and by loosening the upper lips 441 and below 442.
  • This construction variant of the respiratory protection mask allows also put it in place and remove it with one hand, and without touch neither the duct nor the filtering part. No contact also takes place between the hand and skin of the person when applying or removing the mask respiratory protection.
  • the respiratory protection mask is also put on without having to deform the filtering part of the filtering element, which allows a flexible filter element to be correctly positioned.
  • the protective mask can also use filter elements from the trade.

Abstract

The respirator mask has a filter (290) and a T-section jaw to hook onto the users teeth. The jaw (250) connects the buccal area with the filter and is fixed in an interior passage (220) of a first cylinder (210) by a partition (230) or spring of a support cylinder.

Description

La présente invention concerne un masque de protection respiratoire à usage intermittent.The present invention relates to a respiratory protection mask for use intermittent.

Les masques respiratoires du commerce destinés à filtrer les polluants aériens les plus courants sont constitués de deux parties: d'une part, une partie filtrante à usage unique ou pouvant être nettoyée ou changée, prévue pour recouvrir efficacement à la fois la bouche et le nez du porteur et, d'autre part, un dispositif de fixation qui est associé à la partie filtrante, pour la plaquer et la maintenir sur les orifices respiratoires du porteur.Commercial respiratory masks intended to filter air pollutants the most common consist of two parts: on the one hand, a filtering part with single use or can be cleaned or changed, intended to cover effectively both the wearer's mouth and nose and, on the other hand, a device for attachment which is associated with the filtering part, to press it down and hold it on the wearer's breathing ports.

Il s'agit généralement d'un ou de plusieurs liens élastiques, qui contournent la partie arrière de la tête permettant de plaquer l'élément filtrant sur le visage du porteur de manière à isoler la partie amont de la partie aval de l'élément filtrant. La partie amont est alors mise en communication avec la bouche et le nez du porteur, et la partie aval est exposée à l'environnement pollué.It is usually one or more elastic ties, which bypass the rear part of the head allowing the filter element to be pressed onto the face of the carrier so as to isolate the upstream part from the downstream part of the filter element. The upstream part is then put in communication with the mouth and the nose of the wearer, and the downstream part is exposed to the polluted environment.

La personne désirant mettre en place le masque doit, d'une part, saisir la partie filtrante avec une main pour l'appliquer sur son visage et, d'autre part, à l'aide de son autre main, faire passer les liens à l'arrière de sa tête.The person wishing to put on the mask must, on the one hand, grasp the filtering part with one hand to apply it on his face and, on the other hand, using with his other hand, pass the ties to the back of his head.

Ce type de masque est par exemple décrit dans le document de brevet GB-A-2045 091. This type of mask is for example described in the patent document GB-A-2045 091.

Cependant, il arrive souvent que les polluants aériens proviennent de manipulations de produits chimiques que manipule la personne portant le masque. C'est par exemple le cas des produits de traitement des sols, des végétaux, ou des animaux en agriculture, comme par exemple, des désherbants, fongicides, etc. Ces produits de traitement sont conditionnés et commercialisés avec des concentrations très fortes, et ont des effets cancérigènes tératogènes ou mutagènes lorsqu'ils sont inhalés ou mis en contact avec la peau. Dans ce dernier cas, certains produits passent directement au travers des pores et peuvent provoquer un empoisonnement. Ils sont donc très toxiques pour l'homme.However, air pollutants often come from handling of chemicals handled by the person wearing the mask. This is for example the case of soil treatment products, plants, or animals in agriculture, such as weed killers, fungicides, etc. These treatment products are packaged and marketed with concentrations very strong, and have teratogenic or mutagenic carcinogenic effects when inhaled or contacted with the skin. In the latter case, certain products pass directly through the pores and can cause poisoning. They are therefore very toxic to humans.

S'agissant d'un produit de traitement des sols, l'opérateur chargé de l'opération utilise un pulvérisateur industriel qu'il convient de déplacer au-dessus de la surface à traiter, avec un tracteur agricole par exemple.Being a soil treatment product, the operator in charge of the operation use an industrial sprayer that should be moved above the surface to treat, with an agricultural tractor for example.

L'opérateur doit, à intervalles réguliers, recharger le pulvérisateur en eau et en produits de traitement des sols, présentés sous forme de poudre ou de liquide, dans une proportion déterminée. Pour cette dernière opération, l'opérateur doit utiliser comme protection, au minimum un masque respiratoire, une paire de gants et des lunettes de protection.The operator must, at regular intervals, recharge the sprayer with water and soil treatment products, presented in powder or liquid form, in a fixed proportion. For this last operation, the operator must use as protection, at least a respiratory mask, a pair of gloves and Protective glasses.

Or, dès la seconde manipulation de produits de traitement des sols, les gants de l'opérateur sont pollués, et s'il les ôte pour retirer à mains nues son masque, ses mains sont également souillées de produits de traitement. C'est donc muni de ses gants que l'opérateur ôte son masque. Du produit de traitement des sols est alors déposé en très faible quantité, mais avec une forte concentration sur la partie filtrante du masque de l'opérateur, ou sur les liens élastiques en contact direct avec la peau. Les qualités de filtration du masque s'en trouvent également altérées et réduisent pour le moins sa durée de vie.However, from the second handling of soil treatment products, gloves of the operator are polluted, and if he takes them off to remove his mask with his bare hands, his hands are also soiled with treatment products. It is therefore equipped with its gloves for the operator to remove his mask. Soil treatment product is then deposited in very small quantities, but with a high concentration on the filtering part of the operator's mask, or on the elastic ties in direct contact with the skin. The filtration qualities of the mask are also affected and reduce at least its lifespan.

Le but de l'invention est donc de proposer un masque de protection respiratoire à usage intermittent, facile à mettre en place d'une seule main, et dont la pause n'engendre pas de risque de contamination par la main qui le pose.The object of the invention is therefore to propose a protective mask breathing machine for intermittent use, easy to put on with one hand, and the break does not create a risk of contamination by the hand placing it.

A cet effet, un masque de protection respiratoire selon l'invention, est caractérisé en ce que le dispositif de fixation est un mors de section transversale en forme de Té, de manière à permettre son accrochage par les dents d'une personne, ledit mors mettant en communication la cavité buccale d'une personne avec la partie amont d'un élément filtrant en isolant la partie amont de la partie aval de l'élément filtrant lorsque le masque respiratoire est porté par la personne. To this end, a respiratory protection mask according to the invention is characterized in that the fixing device is a jaw of cross section in shape of Tee, so as to allow its attachment by the teeth of a person, said jaw connecting a person's oral cavity with the part upstream of a filter element by isolating the upstream part from the downstream part of the element filtering when the respiratory mask is worn by the person.

Selon une autre caractéristique de l'invention, le mors est fixé dans un passage intérieur d'un premier cylindre par au moins une cloison, ledit passage intérieur débouchant de façon opposée au mors dans une sortie double.According to another characteristic of the invention, the jaw is fixed in a interior passage of a first cylinder by at least one partition, said passage interior opening opposite to the jaw in a double outlet.

Selon une autre caractéristique de l'invention, la sortie double comprend, d'une part, une première sortie dans laquelle est logé un élément filtrant et, d'autre part, une seconde sortie dans laquelle est logée une valve d'expulsion.According to another characteristic of the invention, the double outlet comprises, on the one hand, a first outlet in which is housed a filter element and, on the other share, a second outlet in which is housed an expulsion valve.

Selon une autre caractéristique de l'invention, le premier cylindre est prolongé côté mors par une face de recouvrement prévue pour épouser la partie labiale d'une personne.According to another characteristic of the invention, the first cylinder is extended jaw side by a covering face provided to match the lip part of a person.

Selon une autre caractéristique de l'invention, un pince-nez est fixé radialement sur le premier cylindre.According to another characteristic of the invention, a nose clip is fixed radially on the first cylinder.

Selon une autre caractéristique de l'invention, le mors est prolongé axialement par une embouchure, une collerette montée coulissante dans un logement cylindrique d'un support cylindrique, une tige traversant le support cylindrique, et un poussoir; une empreinte est disposée sur la paroi extérieure du support cylindrique près de l'une de ses extrémités, et permet sa préhension par deux doigts tout en permettant la manoeuvre du poussoir par un troisième doigt.According to another characteristic of the invention, the jaw is extended axially by a mouth, a flange mounted sliding in a cylindrical housing a cylindrical support, a rod passing through the cylindrical support, and a pusher; an imprint is placed on the outer wall of the cylindrical support near one of its ends, and allows its gripping by two fingers while allowing the operation of the pusher by a third finger.

Selon une autre caractéristique de l'invention, un ressort de compression agit sur la collerette de manière à rapprocher le mors du support cylindrique.According to another characteristic of the invention, a compression spring acts on the flange so as to bring the jaw closer to the cylindrical support.

Selon une autre caractéristique de l'invention, un évidement intérieur traverse axialement le mors et débouche latéralement dans une partie cylindrique de l'embouchure, située à l'extérieur du support cylindrique et dans la partie amont de l'élément filtrant.According to another characteristic of the invention, an interior recess crosses axially the jaw and opens laterally into a cylindrical part of the mouth, located outside the cylindrical support and in the upstream part of the filter element.

Selon une autre caractéristique de l'invention, l'élément filtrant est monté dans une gorge pratiquée dans la paroi extérieure du support cylindrique.According to another characteristic of the invention, the filter element is mounted in a groove made in the outer wall of the cylindrical support.

Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaítront plus clairement à la lecture de la description suivante d'un exemple de réalisation, ladite description étant faite en relation avec les dessins joints, parmi lesquels:

  • la Fig. 1 représente une vue en coupe d'une première variante de réalisation d'un masque de protection respiratoire porté selon l'invention,
  • la Fig. 2 représente une vue de face d'un masque de la Fig. 1 selon l'invention et,
  • la Fig. 3 représente une vue en coupe d'une seconde variante de réalisation d'un masque de protection respiratoire porté selon l'invention.
    • The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in relation to the accompanying drawings, among which:
  • Fig. 1 represents a sectional view of a first alternative embodiment of a respiratory protection mask worn according to the invention,
  • Fig. 2 shows a front view of a mask in FIG. 1 according to the invention and,
  • Fig. 3 shows a sectional view of a second alternative embodiment of a respiratory protection mask worn according to the invention.

    • A la Fig. 1, le masque de protection respiratoire représenté est symétrique dans le plan médian de la Fig. 1. Ce masque comprend une face de recouvrement 100 prévue pour recouvrir par une paroi intérieure 110, la partie labiale 410 d'une personne 400 susceptible de porter le masque de protection respiratoire. La paroi intérieure 110 a un profil demi-cylindrique de rayon R d'axe X-X' à la Fig. 1. La partie médiane 130 de la face de recouvrement 100 est plus haute que ses bords latéraux 140 raccordés par un rayon N.In Fig. 1, the respiratory protection mask shown is symmetrical in the median plane of FIG. 1. This mask includes a covering face 100 provided to cover by an interior wall 110, the labial portion 410 of a 400 person likely to wear the respiratory protection mask. Wall interior 110 has a semi-cylindrical profile of radius R with axis XX ′ in FIG. 1. The middle part 130 of the covering face 100 is higher than its edges side 140 connected by a radius N.

    La face de recouvrement 100 comporte dans sa partie médiane une ouverture 150 d'aspect circulaire qui débouche, de manière perpendiculaire à la paroi intérieure 110, dans une partie filtrante 200 constituée d'un premier cylindre 210 dont la longueur est suffisante pour permettre la préhension du masque de protection respiratoire, par sa paroi externe T, avec deux doigts 420 et 421 d'une main, en l'occurrence le pouce et l'index à la Fig. 1.The covering face 100 has in its middle part an opening 150 of circular appearance which opens, perpendicular to the interior wall 110, in a filtering part 200 consisting of a first cylinder 210, the length is sufficient to allow the gripping of the protective mask respiratory, by its external wall T, with two fingers 420 and 421 with one hand, in the occurrence of the thumb and index finger in FIG. 1.

    Le premier cylindre 210 comprend un passage intérieur 220 d'aspect cylindrique qui porte à la frontière de l'ouverture circulaire 150 au moins une cloison 230 de faible épaisseur traversant radialement le passage intérieur 220 du premier cylindre 210.The first cylinder 210 includes an interior passage 220 of appearance cylindrical which carries at the border of the circular opening 150 at least one partition 230 of small thickness radially crossing the interior passage 220 of the first cylinder 210.

    Cette cloison 230 se prolonge à l'intérieur de la face de recouvrement 100 par un bras 240 qui supporte un mors 250 en forme de Té dans le plan de coupe de la Fig. 1. Le mors 250 peut prendre la forme d'un segment de cylindre ou d'un parallélépipède dont la paroi intérieure 260 est positionnée à une distance sensiblement constante par rapport à la paroi extérieure 270.This partition 230 extends inside the covering face 100 by an arm 240 which supports a T-shaped jaw 250 in the section plane of the Fig. 1. Jaw 250 may take the form of a cylinder segment or a parallelepiped whose inner wall 260 is positioned at a distance substantially constant with respect to the outer wall 270.

    Ce mors peut être introduit dans la cavité buccale 445 et pincé à l'arrière des dents 440 de la personne 400.This jaw can be introduced into the oral cavity 445 and pinched behind the teeth 440 of person 400.

    Le passage intérieur 220 du premier cylindre 210 débouche de façon opposée au mors 250 dans une sortie double 275 en forme de lunette visible de face à la Fig. 2.The interior passage 220 of the first cylinder 210 opens opposite jaw 250 in a double exit 275 in the form of a bezel visible from the front Fig. 2.

    Cette sortie double 275 débouche vers l'extérieur.This double exit 275 leads to the outside.

    Une demi-vue de chaque sortie 275a et 275b est visible en coupe à la Fig. 1.A half view of each outlet 275a and 275b is visible in section in FIG. 1.

    La première sortie 275a visible dans la partie haute de cette Fig. 1 comporte un alésage intérieur 280a dans lequel est logé un élément filtrant 290. The first outlet 275a visible in the upper part of this FIG. 1 includes an internal bore 280a in which is housed a filter element 290.

    Cet élément filtrant 290 est composé de fibres organiques ou synthétiques à porosité contrôlée. Il peut éventuellement être ôté de la première sortie 275a pour permettre son nettoyage ou être remplacé par un élément neuf.This filter element 290 is composed of organic or synthetic fibers with controlled porosity. It can optionally be removed from the first exit 275a to allow its cleaning or be replaced by a new element.

    La seconde sortie 275b visible dans la partie basse de la Fig. 1 comporte un alésage intérieur 280b dans lequel est logée une valve d'expulsion 295. Cette valve 295 est constituée d'un clapet souple 296 fixé dans l'alésage intérieur 280b, et dont la périphérie 297 repose en l'absence d'expiration de la personne 400, sur une couronne 281b de l'alésage intérieur 280b.The second outlet 275b visible in the lower part of FIG. 1 has a inner bore 280b in which is housed an expulsion valve 295. This valve 295 consists of a flexible valve 296 fixed in the internal bore 280b, and the periphery 297 rests in the absence of expiration of the person 400, on a crown 281b of the inner bore 280b.

    La partie amont 215 de l'élément filtrant 290 et de valve d'expulsion 295 est alors raccordée à l'ouverture d'aspect circulaire 150. La partie aval 216 de l'élément filtrant 290 est exposée à l'air ambiant.The upstream part 215 of the filter element 290 and of the expulsion valve 295 is then connected to the circular appearance opening 150. The downstream part 216 of the element filter 290 is exposed to ambient air.

    Un pince-nez 300 est rapporté radialement sur le premier cylindre 210.A nose clip 300 is attached radially to the first cylinder 210.

    A la Fig. 2, le pince-nez 300 est constitué de deux branches 310a et 310b qui sont positionnées de manière opposée l'une à l'autre.In Fig. 2, the nose clip 300 consists of two branches 310a and 310b which are positioned opposite each other.

    Chaque branche 310a ou 310b présente un profil recourbé flexible qui est rattachée par l'une de ses extrémités à la paroi externe du premier cylindre 210.Each branch 310a or 310b has a flexible curved profile which is attached by one of its ends to the external wall of the first cylinder 210.

    L'autre extrémité de chaque branche 310a ou 310b prend la forme d'une bille 320a ou 320b. L'agencement des branches 310a ou 310b permet aux deux billes 320a ou 320b d'exercer l'une à l'encontre de l'autre une force F suffisante pour pincer la cloison nasale 450 du nez 455 de la personne 400 comme cela est visible à la Fig. 2.The other end of each branch 310a or 310b takes the form of a ball 320a or 320b. The arrangement of the branches 310a or 310b allows the two balls 320a or 320b to exert against each other a force F sufficient to pinch the septum 450 of the nose 455 of the person 400 as seen in FIG. 2.

    La personne 400 qui souhaite porter le masque de protection respiratoire le manipule de la manière suivante. La personne 400 attrape entre le pouce 420 et l'index 421 la paroi externe T du premier cylindre 210, et approche vers son visage le masque de protection respiratoire. La personne fait alors glisser les billes 320a et 320b du pince-nez 300, en recouvrant la cloison nasale 450 de son nez 455 de manière à obstruer le conduit nasal.Person 400 who wishes to wear the respiratory protection mask handles as follows. Person 400 catches between thumb 420 and the index 421 the outer wall T of the first cylinder 210, and approaches towards its face the respiratory protection mask. The person then slides the balls 320a and 320b of the nose clip 300, covering the nasal septum 450 with its nose 455 to obstruct the nasal passage.

    Ensuite, la personne introduit dans sa cavité buccale 445 le mors 250, et vient faire reposer la paroi intérieure 110 de la face de recouvrement 100 sur sa partie labiale 410 de manière à isoler la partie amont 215 de la partie aval 216 de l'élément filtrant 290.Then, the person introduces the jaw 250 into his oral cavity 445, and comes rest the inner wall 110 of the covering face 100 on its part labial 410 so as to isolate the upstream part 215 from the downstream part 216 of the element filter 290.

    Elle mord de ses dents 440 le mors 250 pour maintenir en place le masque de protection respiratoire.She bites with her teeth 440 the bit 250 to hold the mask in place respiratory protection.

    Le masque de protection respiratoire mis en place, la personne peut respirer par la bouche au travers du passage intérieur 220. The respiratory protection mask in place, the person can breathe through the mouth through the interior passage 220.

    L'expiration se fait au travers de la valve d'expulsion 295, alors que l'inspiration se fait au travers de l'élément filtrant 290.The exhalation takes place through the expulsion valve 295, while inspiration takes place through the filter element 290.

    Pour ôter le masque, lorsque l'atmosphère environnante de la personne est saine, celle-ci procède en sens inverse de la pose en tenant le masque de protection respiratoire par la paroi externe T du premier cylindre 210.To remove the mask, when the surrounding atmosphere of the person is healthy, it proceeds in the opposite direction of the pose by holding the protective mask respiratory through the external wall T of the first cylinder 210.

    Le masque de protection respiratoire de l'invention est d'une construction simple et présente l'intérêt de pouvoir être mis en place et retiré très facilement à l'aide d'une seule main. Sa partie filtrante et son embouchure ne sont pas contaminées par les souillures ou polluants qui peuvent se déposer sur les mains gantées ou non de la personne lors d'une manipulation de produits dangereux.The respiratory protection mask of the invention is of a construction simple and has the advantage of being able to be set up and removed very easily at using one hand. Its filtering part and its mouth are not contaminated by dirt or pollutants which can be deposited on the gloved hands or not the person when handling dangerous products.

    Par ailleurs, les mains gantées ou non de la personne ne lui touchent pas la peau pendant la pose ou la dépose du masque de protection respiratoire.Furthermore, the person's gloved or ungloved hands do not touch the person's skin during application or removal of the respiratory protection mask.

    La Fig. 3 montre une seconde variante de réalisation du masque de protection respiratoire qui utilise un élément filtrant du commerce de type enveloppant.Fig. 3 shows a second alternative embodiment of the protective mask respiratory system using a wrap-around commercial filter element.

    Le masque est constitué d'un support cylindrique 500 comportant sur sa paroi extérieure 510 et positionné à l'une de ses extrémités 520, une empreinte 530 permettant la préhension de la paroi extérieure 510 du support cylindrique 500 entre deux doigts 420 et 422 de l'une de ses mains. Cette empreinte 530 peut par exemple être réalisée sur la totalité de la périphérie de la paroi extérieure 510.The mask consists of a cylindrical support 500 comprising on its wall exterior 510 and positioned at one of its ends 520, an imprint 530 allowing the gripping of the outer wall 510 of the cylindrical support 500 between two fingers 420 and 422 with one of his hands. This imprint 530 can for example be made on the entire periphery of the outer wall 510.

    Une gorge 540 est réalisée également sur la paroi extérieure 510 et permet de recevoir un élément filtrant 600 de type souple ou semi-rigide, par une ouverture 610 pratiquée dans sa partie filtrante 620. L'élément filtrant 600 est monté de manière à ce que sa partie amont 630 puisse recouvrir le nez 455 et la bouche 460 de la personne 400 portant le masque. La partie aval 631 de l'élément filtrant 600 est exposée à l'air ambiant.A groove 540 is also produced on the outer wall 510 and makes it possible to receive a filter element 600 of the flexible or semi-rigid type, through an opening 610 practiced in its filtering part 620. The filtering element 600 is mounted so as to that its upstream part 630 can cover the nose 455 and the mouth 460 of the 400 person wearing the mask. The downstream part 631 of the filter element 600 is exposed to ambient air.

    Une valve d'expulsion 640 d'une construction similaire à celle décrite à la Fig. 1 est rapportée au travers de la partie filtrante 620.An expulsion valve 640 of a construction similar to that described in the Fig. 1 is added through the filtering part 620.

    Le support cylindrique 500 comprend une succession de logements coaxiaux. Un premier logement cylindrique 550 débouche, d'une part, au travers de l'extrémité 520 et, d'autre part, dans un second logement cylindrique 560 par un premier épaulement 561. Le diamètre intérieur du second logement cylindrique 560 est d'une dimension plus importante que le diamètre intérieur du premier logement cylindrique 550. The cylindrical support 500 comprises a succession of coaxial housings. A first cylindrical housing 550 opens, on the one hand, through the end 520 and, on the other hand, in a second cylindrical housing 560 by a first shoulder 561. The internal diameter of the second cylindrical housing 560 is of dimension larger than the internal diameter of the first housing cylindrical 550.

    Une lumière cylindrique 565 raccorde au travers d'un second épaulement 562, le second logement cylindrique 560, avec une seconde extrémité 570 du support cylindrique 500.A cylindrical lumen 565 connects through a second shoulder 562, the second cylindrical housing 560, with a second end 570 of the support cylindrical 500.

    Un conduit 700 en forme de pièce de révolution traverse de part en part le support cylindrique 500. Le conduit 700 comprend une embouchure 705 constituée d'un mors 710 de section 711 cylindrique ou ovale, ressortant du support cylindrique 500, et pouvant être introduit dans la cavité buccale 445 et pincé à l'arrière des dents 440 de la personne. L'embouchure 705 prend la forme d'un Té dans la coupe de la Fig. 3.A conduit 700 in the shape of a part of revolution passes right through the cylindrical support 500. The conduit 700 comprises a mouth 705 consisting a jaw 710 of section 711 cylindrical or oval, emerging from the cylindrical support 500, and can be introduced into the oral cavity 445 and pinched at the back of the teeth 440 of the person. The 705 mouthpiece takes the form of a T in the cut of the Fig. 3.

    Le conduit 700 comprend également une partie cylindrique 720 pouvant coulisser dans la lumière cylindrique 565, une collerette 730 apte à se déplacer dans le second logement cylindrique 560.The conduit 700 also comprises a cylindrical part 720 which can slide in the cylindrical opening 565, a flange 730 able to move in the second cylindrical housing 560.

    Une tige 740 prolonge la collerette 730 et traverse le premier logement cylindrique 550 en débouchant par l'extrémité 520 du support cylindrique 500.A rod 740 extends the collar 730 and passes through the first housing cylindrical 550 opening at the end 520 of the cylindrical support 500.

    Un joint torique 745 monté sur la tige 740 réalise une étanchéité entre la tige 740 et le premier logement cylindrique 550.An O-ring 745 mounted on the rod 740 seals between the rod 740 and the first cylindrical housing 550.

    L'extrémité libre de la tige 740 comporte un poussoir 750 pouvant être actionné par un troisième doigt 421 de l'une des mains de la personne dans le but de déplacer à coulissement le conduit 700 au travers du support cylindrique 500.The free end of the rod 740 includes a pusher 750 which can be actuated by a third finger 421 of one of the person's hands for the purpose of slide the conduit 700 through the cylindrical support 500.

    Un évidement intérieur 760 traverse axialement le mors 710 et débouche latéralement dans la partie cylindrique 720 de l'embouchure 705, ainsi que dans la partie amont 630 de l'élément filtrant 600.An internal recess 760 passes axially through the jaw 710 and opens out laterally in the cylindrical part 720 of the mouth 705, as well as in the upstream part 630 of the filter element 600.

    Un ressort de compression 800 est logé dans le second logement cylindrique 560 entre le second épaulement 562 et la collerette 730, la poussant en butée naturellement sur le premier épaulement 561.A compression spring 800 is housed in the second cylindrical housing 560 between the second shoulder 562 and the collar 730, pushing it into abutment naturally on the first shoulder 561.

    Un élément filtrant 600 est monté dans la gorge 540. La personne 400 saisit l'empreinte 530 du masque de protection respiratoire au moyen de ses deux doigts 420 et 422, par exemple le pouce et le majeur, puis, grâce à un troisième doigt 421, par exemple l'index, appuie et déplace axialement le poussoir 750 en contrariant le ressort de compression 800. L'embouchure 705 sort davantage du support cylindrique 500 et peut être introduite dans la cavité buccale 445, lorsque le support cylindrique 500 muni de son élément filtrant 600 est appliqué sur le pourtour du nez 450 et de la bouche 460 de la personne 400. Dans ces conditions, la partie amont 630 est isolée de la partie aval 631 de l'élément filtrant 620. A filter element 600 is mounted in the groove 540. The person 400 grasps the imprint 530 of the respiratory protection mask using two fingers 420 and 422, for example the thumb and middle finger, then, thanks to a third finger 421, for example the index finger, presses and axially displaces the pusher 750 while counteracting the compression spring 800. The mouth 705 comes out more from the support cylindrical 500 and can be introduced into the oral cavity 445, when the support cylindrical 500 provided with its filtering element 600 is applied around the nose 450 and the mouth 460 of the person 400. Under these conditions, the upstream part 630 is isolated from the downstream part 631 of the filter element 620.

    La personne 400 pince ensuite le mors 710 à l'arrière de ses dents 440.The person 400 then pinches the jaw 710 at the back of his teeth 440.

    Le ressort de compression 800 repousse la collerette 730 vers le premier épaulement 561. Le support cylindrique 500 muni de son élément filtrant 600 se rapprochent du mors 710, ce qui a pour effet de permettre à l'élément filtrant 600 de s'appliquer correctement sur le pourtour du nez 450 et de la bouche 460 de la personne 400, afin d'assurer une étanchéité correcte avec l'environnement extérieur.Compression spring 800 pushes the flange 730 towards the first shoulder 561. The cylindrical support 500 provided with its filter element 600 is close to the jaw 710, which has the effect of allowing the filter element 600 to apply correctly around the edge of the nose 450 and the mouth 460 of the 400 person, to ensure a proper seal with the external environment.

    Le masque de protection respiratoire est alors mis en place et les deux doigts 420 et 422 de la personne peuvent quitter l'empreinte 530.The respiratory protection mask is then put on and the two fingers 420 and 422 of the person can leave the 530 fingerprint.

    La personne peut respirer par le nez 420, ou par la bouche 460 grâce à l'évidement intérieur 760 débouchant dans la partie amont 630 de l'élément filtrant 600. L'air expiré est évacué au travers de la valve d'expulsion 640, alors que l'air inspiré est filtré par la partie filtrante 620 de l'élément filtrant 600.The person can breathe through the nose 420, or through the mouth 460 thanks to the internal recess 760 opening into the upstream part 630 of the filter element 600. The exhaled air is evacuated through the expulsion valve 640, while the air inspired is filtered by the filtering part 620 of the filtering element 600.

    Pour ôter le masque de protection respiratoire, la personne le retient en tenant l'empreinte 530 entre ses deux doigts 420 et 421 et en desserrant les lèvres supérieure 441 et inférieure 442.To remove the respiratory protection mask, the person retains it while holding the imprint 530 between his two fingers 420 and 421 and by loosening the upper lips 441 and below 442.

    Cette variante de construction du masque de protection respiratoire permet également de le mettre en place et de le retirer à l'aide d'une seule main, et sans toucher, ni le conduit, ni la partie filtrante. Aucun contact n'a lieu également entre la main et la peau de la personne lors de la pose ou de la dépose du masque de protection respiratoire.This construction variant of the respiratory protection mask allows also put it in place and remove it with one hand, and without touch neither the duct nor the filtering part. No contact also takes place between the hand and skin of the person when applying or removing the mask respiratory protection.

    La mise en place du masque de protection respiratoire s'effectue également sans devoir déformer la partie filtrante de l'élément filtrant, ce qui permet à un élément filtrant souple d'être correctement mis en place.The respiratory protection mask is also put on without having to deform the filtering part of the filtering element, which allows a flexible filter element to be correctly positioned.

    Son confort est supérieur dans la mesure où il permet la respiration par la bouche ou par le nez.Its comfort is higher insofar as it allows breathing by the mouth or nose.

    Le masque de protection peut également utiliser des éléments filtrants du commerce.The protective mask can also use filter elements from the trade.

    Claims (9)

    Masque de protection respiratoire comprenant un élément filtrant (290; 600) et un dispositif de fixation, formé par un mors (250; 710) de section transversale en forme de Té, de manière à permettre son accrochage par les dents d'une personne, ledit mors (250; 710) mettant en communication la cavité buccale (445) d'une personne avec la partie amont (215; 630) d'un élément filtrant (290; 620) en isolant la partie amont (215; 630) de la partie aval (216; 631) de l'élément filtrant (290; 600) lorsque le masque respiratoire est porté par la personne, caractérisé en ce que le mors (250; 710) est fixé dans un passage intérieur (220) d'un premier cylindre (210), par au moins une cloison (230), ou ressort d'un support cylindrique (500).Respiratory protection mask comprising a filter element (290; 600) and a fixing device, formed by a jaw (250; 710) of cross section in the shape of a T, so as to allow its attachment by the teeth of a person, said jaw (250; 710) connecting the oral cavity (445) with a person with the upstream part (215; 630) of a filter element (290; 620) by isolating the upstream part (215; 630) of the downstream part (216; 631) of the filter element (290; 600) when the respiratory mask is worn by the person, characterized in that the bit (250; 710) is fixed in an interior passage (220) of a first cylinder (210), by at least one partition (230), or spring from a cylindrical support (500). Masque de protection respiratoire selon la revendication 1, caractérisé en ce que ledit passage intérieur (220) débouche de façon opposée au mors (250) dans une sortie double (275).Respiratory protection mask according to claim 1, characterized in that said interior passage (220) opens opposite to the jaw (250) in a double outlet (275). Masque de protection respiratoire selon la revendication 2, caractérisé en ce que la sortie double (275) comprend, d'une part, une première sortie (275a) dans laquelle est logé un élément filtrant (290) et, d'autre, part une seconde sortie (275b) dans laquelle est logée une valve d'expulsion (295).Respiratory protection mask according to claim 2, characterized in that the double outlet (275) comprises, on the one hand, a first outlet (275a) in which is housed a filter element (290) and, on the other hand, a second outlet (275b) in which is housed an expulsion valve (295). Masque de protection respiratoire selon l'une des revendications 1 à 3, caractérisé en ce que le premier cylindre (210) est prolongé côté mors (250) par une face de recouvrement (100) prévue pour épouser la partie labiale (410) d'une personne.Respiratory protection mask according to one of claims 1 to 3, characterized in that the first cylinder (210) is extended on the jaw side (250) by a covering face (100) provided to match the lip part (410) of a person. Masque de protection respiratoire selon l'une des revendications 1 à 5, caractérisé en ce qu'un pince-nez (300) est fixé radialement sur le premier cylindre (210).Respiratory protection mask according to one of claims 1 to 5, characterized in that a nose clip (300) is fixed radially on the first cylinder (210). Masque de protection respiratoire selon la revendication 1, caractérisé en ce que le mors (710) est prolongé axialement par une embouchure (705), une collerette (730) montée coulissante dans un logement cylindrique (560) d'un support cylindrique (500), une tige (740) traversant le support cylindrique (500) et un poussoir (750); une empreinte (530) est disposée sur la paroi extérieure (510) du support cylindrique (500) près de l'une de ses extrémités (520), et permet sa préhension par deux doigts (420, 422) d'une personne, tout en permettant la manoeuvre du poussoir (750) par un troisième doigt (421). Respiratory protection mask according to claim 1, characterized in that the jaw (710) is extended axially by a mouth (705), a flange (730) slidably mounted in a cylindrical housing (560) of a support cylindrical (500), a rod (740) passing through the cylindrical support (500) and a pusher (750); an imprint (530) is disposed on the outer wall (510) of the cylindrical support (500) near one of its ends (520), and allows its gripping by two fingers (420, 422) of a person, while allowing the operation of the pusher (750) by a third finger (421). Masque de protection respiratoire selon la revendication 6, caractérisé en ce qu'un ressort de compression (800) agit sur la collerette (730) de manière à rapprocher le mors (710) du support cylindrique (500).Respiratory protection mask according to claim 6, characterized in that a compression spring (800) acts on the flange (730) so as to bring the jaw (710) closer to the cylindrical support (500). Masque de protection respiratoire selon l'une des revendications 6 ou 7, caractérisé en ce qu'un évidement intérieur (760) traverse axialement le mors (710) et débouche latéralement dans une partie cylindrique (720) de l'embouchure (705) située à l'extérieur du support cylindrique (500) et dans la partie amont (630) de l'élément filtrant (600).Respiratory protection mask according to one of claims 6 or 7, characterized in that an internal recess (760) passes axially through the jaw (710) and opens laterally into a cylindrical part (720) of the mouth (705) located outside the cylindrical support (500) and in the upstream part (630) of the filter element (600). Masque de protection respiratoire selon la revendication 6 à 8, caractérisé en ce que l'élément filtrant (600) est monté dans une gorge pratiquée dans la paroi extérieure (510) du support cylindrique (500).Respiratory protection mask according to claim 6 to 8, characterized in that the filter element (600) is mounted in a groove in the wall outside (510) of the cylindrical support (500).
    EP00400359A 1999-02-08 2000-02-08 Breathing protection mask for intermittent use Withdrawn EP1025877A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9901586 1999-02-08
    FR9901586A FR2789318B1 (en) 1999-02-08 1999-02-08 RESPIRATORY PROTECTION MASK FOR INTERMITTENT USE

    Publications (1)

    Publication Number Publication Date
    EP1025877A1 true EP1025877A1 (en) 2000-08-09

    Family

    ID=9541847

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00400359A Withdrawn EP1025877A1 (en) 1999-02-08 2000-02-08 Breathing protection mask for intermittent use

    Country Status (2)

    Country Link
    EP (1) EP1025877A1 (en)
    FR (1) FR2789318B1 (en)

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2045091A (en) 1979-03-19 1980-10-29 Btr Industries Ltd Improvements in or relating to facepieces
    US4470413A (en) * 1982-01-29 1984-09-11 Dr/a/ gerwerk Aktiengesellschaft Protective breathing apparatus including a mask and mouthpiece
    US5186165A (en) * 1991-06-05 1993-02-16 Brookdale International Systems Inc. Filtering canister with deployable hood and mouthpiece
    EP0695561A1 (en) * 1994-08-03 1996-02-07 F.X.K. Patents Limited Breathing equipment
    WO1996011037A1 (en) * 1994-10-06 1996-04-18 Philip Michael Leworthy A filtering device

    Patent Citations (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2045091A (en) 1979-03-19 1980-10-29 Btr Industries Ltd Improvements in or relating to facepieces
    US4470413A (en) * 1982-01-29 1984-09-11 Dr/a/ gerwerk Aktiengesellschaft Protective breathing apparatus including a mask and mouthpiece
    US5186165A (en) * 1991-06-05 1993-02-16 Brookdale International Systems Inc. Filtering canister with deployable hood and mouthpiece
    US5315987A (en) * 1991-06-05 1994-05-31 Brookdale International Systems Inc. Filtering canister with deployable hood and mouthpiece
    EP0695561A1 (en) * 1994-08-03 1996-02-07 F.X.K. Patents Limited Breathing equipment
    WO1996011037A1 (en) * 1994-10-06 1996-04-18 Philip Michael Leworthy A filtering device

    Also Published As

    Publication number Publication date
    FR2789318B1 (en) 2001-11-02
    FR2789318A1 (en) 2000-08-11

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