EP1177017A1 - Protective equipment with fast fixing head - Google Patents

Protective equipment with fast fixing head

Info

Publication number
EP1177017A1
EP1177017A1 EP01915448A EP01915448A EP1177017A1 EP 1177017 A1 EP1177017 A1 EP 1177017A1 EP 01915448 A EP01915448 A EP 01915448A EP 01915448 A EP01915448 A EP 01915448A EP 1177017 A1 EP1177017 A1 EP 1177017A1
Authority
EP
European Patent Office
Prior art keywords
strap
envelope
equipment
mask
equipment according
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.)
Granted
Application number
EP01915448A
Other languages
German (de)
French (fr)
Other versions
EP1177017B1 (en
Inventor
Michel Bardel
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.)
Safran Aerosystems SAS
Original Assignee
Intertechnique SA
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
Family has litigation
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Application filed by Intertechnique SA filed Critical Intertechnique SA
Publication of EP1177017A1 publication Critical patent/EP1177017A1/en
Application granted granted Critical
Publication of EP1177017B1 publication Critical patent/EP1177017B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/084—Means for fastening gas-masks to heads or helmets
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A62B17/04—Hoods

Definitions

  • the invention relates to head protection equipment comprising a respiratory mask, a harness allowing rapid fitting on the face and means for protecting the eyes against smoke.
  • a transparent visor ventilated internally from a respiratory regulator.
  • This visor can be permanently attached to the mask, as in the equipment marketed under the brand name "MAGIC" by the applicant (US model patent Des. 304,384) or detachable to facilitate storage (US-A-5,630,412 ). In both cases, breathing gas supply ports under pressure from the regulator to the visor are provided to sweep the visor and avoid fogging.
  • Visor equipment of this kind intended for the US Air Force, has been marketed from 1976 by the company Scott Aviation, under the reference MBU-2 / P They include an oro-nasal mask welded to a flexible visor in transparent polyurethane, provided with a waterproof support seal on the face. Due to the presence of a face seal, folding the equipment to store it in a box is delicate and inconvenient, long-term storage can damage the seal.
  • the present invention aims in particular to provide head protection equipment, enveloping the outlet of the respiratory tract and the eyes, ensuring comfort equivalent to that of existing equipment, easily stored and ensuring sufficient protection against smoke and gas irritating the eyes. .
  • head protection equipment enveloping the outlet of the respiratory tract and the eyes, ensuring comfort equivalent to that of existing equipment, easily stored and ensuring sufficient protection against smoke and gas irritating the eyes.
  • it uses the fact that a perfect seal is not necessary, since the ventilation due to the overpressure of the respiratory gas is sufficient to expel smoke and irritating gases.
  • the invention consequently proposes an equipment of the kind defined above, characterized by a flexible envelope covering the head, fixed in leaktight manner to a sheath limiting the elongation of the single strap or of the upper strap of the harness and fixed mask, said envelope being transparent at least in a part which is located in front of the eyes when the equipment is in place on the head.
  • Such a constitution makes it possible not to equip the envelope of the facial seal with a visor which is essential in prior equipment, a joint whose flexibility is insufficient to allow convenient correct folding of the equipment for storage.
  • the sealing of the connection between the envelope on the one hand, the mask and the strap on the other hand can be made complete, there is generally a gap between the face and the envelope in a border area, behind the seal of tightness of the mask
  • this gap can be made very small by an appropriate arrangement of the straps, as will be seen below.
  • the escape to the environment of pressurized breathing gas coming from the regulator via the mask is enough to expel outwards the irritating fumes or gases which would tend to penetrate towards the eyes
  • the sealed or substantially sealed connection between the envelope and the extensible strap can be carried out by winding the edge of the envelope on the inextensible external sheath commonly provided to limit the elongation of the strap
  • the connection between the envelope and the inextensible sheath the strap can in particular be made by sewing or gluing
  • the edge of the envelope will be long enough not to interfere with the lengthening of the strap for the installation of the equipment. This edge will crease when deflating the strap.
  • the contraction of the strap during deflation occurs mainly in the rear part, therefore without causing any risk of folds affecting the visor. It will often be advantageous to give the part of the envelope close to the mask an increased stiffness relative to the rear part of the envelope to avoid the formation of folds in the front part.
  • the envelope is not limited to a simple cap. It extends downward from the single strap or the top strap to provide additional protection.
  • the tubular part of the envelope below the upper strap may be free relative to the lower strap or fixed to its sheath.
  • it is sufficient for the envelope to pass outside the lower strap so that the latter, when it inflates, deploys the lower part and facilitates the positioning of the equipment on the head.
  • protection as complete as possible it is advantageous to place the lower part of the envelope inside the lower strap.
  • the envelope can have various constitutions, depending in particular on the user for whom the equipment is intended and on the optical qualities required for the transparent part.
  • the envelope is in one piece made of a transparent material, such as polyurethane; a portion of which constitutes a visor. To avoid the formation of folds in the visor zone, this zone can be thickened so as to be less flexible than the rest.
  • a transparent material such as polyurethane
  • the visor can be in one piece or made of portholes separated by a thinner part facilitating folding for storage.
  • the envelope has the advantage of being particularly simple and of providing a very wide field of vision.
  • the optical qualities that can be obtained are generally insufficient for a pilot.
  • this solution can be adopted for the crew members of civil or military planes, for which a slight reduction in the precision of the vision is tolerable, as well as for uses on the ground.
  • the envelope has a composite structure.
  • the non-transparent part is made of a flexible, waterproof or very little permeable fabric, preferably non-flammable and resistant to high temperatures. We can in particular use the fabric sold under the NOMEX brand, coated to increase its impermeability to contaminants.
  • the transparent part is constituted by a flexible visor in one piece or in two portholes, in polyurethane or in another material which can be either rigid when a high optical quality is necessary, or slightly flexible, fixed in both cases so fabric tight.
  • the envelope constitutes a cap protecting the scalp against thermal effects and possibly also protecting the neck and shoulders when the envelope has a lower part extending below the upper strap.
  • the usual box for storing the head equipment is replaced by a flexible bag which can be designed to receive both a pneumatic harness mask with quick installation and a mask comprising a smoke protection envelope.
  • FIG. 1 is a perspective view showing the external appearance of an example of protective equipment according to the invention, in place on the head;
  • FIG. 2 is an elevational diagram of the equipment of Figure 1;
  • FIG. 3 is a schematic view in horizontal section on a large scale showing the junctions between the components of the equipment of Figure 1 and their support on the head;
  • FIG. 4 is an elevational view showing another embodiment
  • FIG. 5 is a diagram showing a sectional storage bag and equipment in place in the bag, the annular element being deflated.
  • the respiratory rescue equipment shown in FIG. 1 in the state it is in when the harness is placed on the head can be viewed as comprising a mask 10 and a harness 11.
  • the mask shown has an oro face cover -nasal provided at the back with a seal with the face, which can be constituted by a thin internal fold.
  • the face cover is fixed to a demand regulator 13 and to a rigid connection block 12.
  • connection block is provided with a connection connector with a flexible pipe 17 intended to be connected to a source of pressurized respiratory gas (oxygen in general)
  • the harness shown comprises two straps 16a and 16b each consisting of an internal tube made of a material allowing the tube to lengthen, contained in a substantially inextensible sheath limiting the elongation of the tube
  • the regulator 13 will be with or without dilution by air drawn into the cabin, with the possibility of overpressure and supply of undiluted respiratory gas in the event of decompression at high altitude and / or presence of smoke
  • the regulator is connected to the supply line 17 by the connection block 12.
  • the block carries means with manual control of inflation of the straps 16, constituted for example by a tap intended to be actuated by manual pinching of two ears 18 carried by the connection block 12 and one of which is tiltable
  • the tap is made so as to put an internal volume of the connection block 12 and the straps 16 into communication with the atmosphere when it is free, which then allows the straps to retract and apply the mask against the face.
  • the tap When the tap is actuated, it admits, on the contrary, gas under pressure coming from the supply line 17 into the interior volume, which causes a lengthening of the straps sufficient to allow rapid fitting.
  • the regulator can carry an aneroid capsule constituting an altimetric detector and automatically putting the straps in connection with the atmosphere to cause maximum tightening in the event of ambient depressurization
  • the equipment also comprises an envelope 30 constituting a cap, of transparent and flexible material, such as polyurethane, polyethylene or KAPTON, the edge of which passes below the upper strap 16a is folded around it and is tightly connected to the sheath limiting the extension of the strap. Notches formed in the edge deliver passage to the flexible bands 32 connecting from place to place the two straps.
  • a cap of transparent and flexible material, such as polyurethane, polyethylene or KAPTON
  • connection with the mask can be ensured by simple bonding of a folded side band 38 of the envelope which tends to retain the part of the cap which constitutes a visor in a position sufficiently spaced from the face, this part forming a visor and the connection zone with the glued strip can be preformed and have a thickness greater than that of the rest of the envelope so that the visor takes a well-defined shape when the equipment is in place on the head.
  • the interior of the visor is ventilated by supplying air coming from the regulator through passages not shown, which may be similar to those of the MAGIC mask described in US patent Des. 304,384 or US Patent 5,630,412.
  • this gap can be of very small cross section if the straps are connected to the mask at the front thereof, as indicated in FIG. 1. It can be closed by a flexible tongue fixed to the mask or a flap. The pressurized breathing gas coming from inside the envelope and escaping towards the outside prevents the entry of polluting gas coming from the environment.
  • the casing 30 extends downwards beyond the straps. It goes under the two straps and it is glued at least to the upper strap. By also sticking it to the lower strap, the latter forces the lower part to open out when it inflates, which facilitates placement on the head.
  • the equipment according to the embodiment shown in Figure 5 differs from that of Figure 1 in that the envelope has a composite structure
  • Most of the envelope 30 and in particular that which is fixed to the sheath of the upper strap 16a is made of a fabric or a film of a material which can be opaque, flexible, sealable to the sheath of the strap and advantageously having a high resistance to heat.
  • NOMEX of which are frequently formed the sheaths of the straps
  • the envelope In front of the eyes, the envelope has a transparent part 41 constituting a porthole in one or two parts sufficiently flexible to allow storage in a classic transport airplane box, but capable of assuming a well-defined shape when it is no longer constrained, in order to have good optical qualities.
  • the envelope has a shape such that the porthole is in close proximity to the eyes when the strap is retracted, so as not to excessively reduce peripheral vision.
  • the variant embodiment shown in FIG. 6 differs from the previous one in that the envelope extends below the upper strap 16a and passes around the lower strap to which it may or may not be fixed.
  • the elongation of the lower strap for the establishment of the head equipment causes a blooming of the lower part of the envelope, facilitating the establishment on the head.
  • the mask is stored, folded in a storage box, for example of the type described in document US-A-5,913,307, from which the connection block extends beyond.
  • a storage box for example of the type described in document US-A-5,913,307, from which the connection block extends beyond.
  • the connection block 12 pulls the equipment out of the box and presses the ears 18.
  • the supply of respiratory gas is then connected to the harness which lengthens until that the outer sheaths, initially pleated, be taut.
  • the edge of the envelope 30 deploys following the elongation of the harness.
  • the user can then place the mask on his face and wrap it over the head, until it rests on the scalp.
  • the user then releases the ears 18 to drain the straps.
  • Mask 10 is applied to the face with maximum force.
  • the edge of the envelope or an intermediate part contracts at the same time as the strap 16a.
  • the folds of the envelope mainly appear in the rear area of the strap and are pressed onto the head by tightening the strap without appreciable unfavorable effect on the seal.
  • the seal is further improved when the envelope extends below the upper strap or, better still, the two straps.
  • the user When the user wishes to replace the equipment in its box, it fully inflates the harness by action on the ear 18. It can then remove all of the equipment. Once the mask is removed, the user releases the ear 18 so that the harness and the envelope become flexible and allow manual folding, then storage of equipment in its box.
  • the storage device is a flexible-walled bag 50 whose edge delimits a mask passage opening and is provided with an extensible annular element 42 whose elasticity tends to tighten it. to admit compressed gas into the element to lengthen it
  • the annular element 42 may have a constitution similar to that of an inflatable harness strap, such as one of those described in the documents already mentioned.
  • the annular element then generally comprises a tube made of an elastic material as tight as possible on which or in which is placed a flexible sheath, but substantially inextensible, whose length in the unfolded state defines the largest possible section of the opening.
  • the elasticity of the annular element 42 of such a device will advantageously be such that this element, when deflated, is applied against the nose of the mask 10, leaving only gaps much smaller than that of the flaps of a box
  • the means of supplying the annular element 42 can be combined with those which supply the harness.
  • These supply means can for example comprise a three-way valve 44 which, at rest, connects the element to the atmosphere and which, when the mask is pulled out of the bag, comes into a position where it supplies the annular element with compressed gas.
  • the valve can be controlled by a pallet 46 placed against the rigid bottom of the bag 50 and causing the valve to come into the emptying position when it is pushed by the mask or, conversely, provided for having two locking positions. elastic and be pulled by the mask when it is removed from the bag.
  • the supply means can also include a valve which is brought into the supply position in response to a manual action on a button and which returns to the emptying position to the atmosphere after a determined period of time.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Toxicology (AREA)
  • Pulmonology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Earth Drilling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Paper (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

The invention concerns a protective breathing equipment comprising a respirator provided with a regulator designed to be connected to a source of breathing mixture under pressure and a harness having at least an extensible strap whereof the ends are connected to the respirator and comprising an element temporarily inflatable with the pressurised breathing mixture to extend the strap until it reaches a sufficient dimension to enable the user to engage the harness on his head and capable of being emptied to enable the strap, to press the respirator against his face. A flexible envelope covering the head is tightly fixed to the single strap or to the upper strap of the harness and fixed to the respirator; it is transparent at least in the portion opposite the eyes when the equipment is worn.

Description

EQUIPEMENT DE PROTECTION DE TETE A MISE EN PLACE RAPIDE QUICK-SETTING HEAD PROTECTION EQUIPMENT
L'invention concerne les équipements de protection de tête comprenant un masque respiratoire, un harnais permettant une mise en place rapide sur le visage et des moyens de protection des yeux contre les fumées.The invention relates to head protection equipment comprising a respiratory mask, a harness allowing rapid fitting on the face and means for protecting the eyes against smoke.
On connaît déjà (EP-A-0288391 ) un équipement de protection à mise en place rapide, destiné notamment au personnel navigant technique des appareils de transport de passagers, du genre ayant un masque respiratoire muni d'un régulateur destiné à être relié à une source de gaz respiratoire sous pression (généralement de l'oxygène) et un harnais ayant au moins une sangle extensible dont les extrémités sont reliées au masque et qui comporte un élément qui est gonflable temporairement par le gaz sous pression pour allonger la sangle jusqu'à une dimension suffisante pour permettre à l'utilisateur d'engager le harnais sur la tête et vidangeable pour permettre à la sangle de se serrer, d'appliquer le masque contre le visage et de le maintenir en place. L'équipement décrit à titre d'exemple dans le document EP-A-0288391 permet de régler la pression dans l'élément gonflable de façon à lui donner une valeur intermédiaire entre la pression de vidange complète et la pression de gonflage complet et à réduire l'inconfort créé par le port permanent du masque dans les conditions de vol où ce port est obligatoire . Le document FR-A-2 778 575 substitue un réglage mécanique au réglage de la pression. Les documents EP-A-0 628 325 et US-A-5 623 923 prévoient un réglage automatique.There is already known (EP-A-0288391) rapid-fitting protective equipment, intended in particular for technical flight personnel of passenger transport devices, of the type having a respiratory mask provided with a regulator intended to be connected to a source of pressurized breathing gas (usually oxygen) and a harness having at least one extendable strap whose ends are connected to the mask and which has an element which is temporarily inflatable by the pressurized gas to extend the strap to sufficient size to allow the user to engage the harness on the head and drainable to allow the strap to tighten, apply the mask against the face and hold it in place. The equipment described by way of example in document EP-A-0288391 makes it possible to adjust the pressure in the inflatable element so as to give it an intermediate value between the complete discharge pressure and the complete inflation pressure and to reduce the discomfort created by the permanent wearing of the mask in the flight conditions where this wearing is compulsory. Document FR-A-2 778 575 substitutes mechanical adjustment for pressure adjustment. The documents EP-A-0 628 325 and US-A-5 623 923 provide for automatic adjustment.
Pour assurer également la protection des yeux contre les agents agressifs et notamment la fumée, sans utiliser une cagoule ayant un joint de cou, on a proposé de compléter l'équipement ci-dessus défini par une visière transparente, ventilée intérieurement à partir d'un régulateur respiratoire. Cette visière peut être fixée de façon permanente au masque, comme dans l'équipement commercialisé sous la marque "MAGIC" par la demanderesse (brevet de modèle US Des. 304 384) ou détachable pour faciliter le stockage (US-A-5 630 412). Dans les deux cas, des orifices d'amenée de gaz respiratoire sous pression du régulateur vers la visière sont prévus pour balayer la visière et éviter l'embuage.To also ensure the protection of the eyes against aggressive agents and in particular smoke, without using a hood having a neck seal, it has been proposed to supplement the above-defined equipment with a transparent visor, ventilated internally from a respiratory regulator. This visor can be permanently attached to the mask, as in the equipment marketed under the brand name "MAGIC" by the applicant (US model patent Des. 304,384) or detachable to facilitate storage (US-A-5,630,412 ). In both cases, breathing gas supply ports under pressure from the regulator to the visor are provided to sweep the visor and avoid fogging.
Une autre solution pour faciliter le stockage consiste à utiliser une visière souple et pliable. Des équipements à visière de ce genre, destinés à l'U.S. Air Force, ont été commercialisés à partir de 1976 par la société Scott Aviation, sous la référence MBU-2/P Ils comportent un masque oro-nasal soudé à une visière flexible en polyuréthane transparent, munie d'un joint d'appui étanche sur le visage. Du fait de la présence d'un joint facial, le pliage de l'équipement pour le ranger dans une boîte est délicat et mal commode , un stockage de longue durée peut endommager le joint.Another solution to facilitate storage is to use a flexible and foldable visor. Visor equipment of this kind, intended for the US Air Force, has been marketed from 1976 by the company Scott Aviation, under the reference MBU-2 / P They include an oro-nasal mask welded to a flexible visor in transparent polyurethane, provided with a waterproof support seal on the face. Due to the presence of a face seal, folding the equipment to store it in a box is delicate and inconvenient, long-term storage can damage the seal.
La présente invention vise notamment à fournir un équipement de protection de tête, enveloppant le débouché des voies respiratoire et les yeux, assurant un confort équivalent à celui des équipements existants, aisément stocké et assurant une protection suffisante contre la fumée et le gaz irritant les yeux. Pour cela, elle utilise le fait qu'une étanchéité parfaite n'est pas nécessaire, car la ventilation due à la surpression du gaz respiratoire est suffisante pour chasser la fumée et les gaz irritants.The present invention aims in particular to provide head protection equipment, enveloping the outlet of the respiratory tract and the eyes, ensuring comfort equivalent to that of existing equipment, easily stored and ensuring sufficient protection against smoke and gas irritating the eyes. . For this, it uses the fact that a perfect seal is not necessary, since the ventilation due to the overpressure of the respiratory gas is sufficient to expel smoke and irritating gases.
L'invention propose en conséquence un équipement du genre ci-dessus défini, caractéπsé par une enveloppe souple recouvrant la tête, fixée de façon étanche à une gaine de limitation de l'allongement de la sangle unique ou de la sangle supérieure du harnais et fixée au masque, la dite enveloppe étant transparente au moins dans une partie qui se trouve en face des yeux lorsque l'équipement est en place sur la tête.The invention consequently proposes an equipment of the kind defined above, characterized by a flexible envelope covering the head, fixed in leaktight manner to a sheath limiting the elongation of the single strap or of the upper strap of the harness and fixed mask, said envelope being transparent at least in a part which is located in front of the eyes when the equipment is in place on the head.
Une telle constitution permet de ne pas équiper l'enveloppe du joint facial de visière qui est indispensable dans les équipements antérieurs, joint dont la souplesse est insuffisante pour permettre un pliage correct commode de l'équipement en vue du stockage L'étanchéité de la liaison entre l'enveloppe d'une part, le masque et la sangle d'autre part, peut être rendue complète , il subsiste en général un interstice entre le visage et l'enveloppe dans une zone frontière, à l'arrière du joint d'étanchéité du masque Mais cet interstice peut être rendu très réduit par une disposition appropriée des sangles, comme on le verra plus loin. Dans ce cas, la fuite vers l'environnement de gaz respiratoire sous pression provenant du régulateur par l'intermédiaire du masque suffit à chasser vers l'extérieur les fumées ou gaz irritants qui tendraient à pénétrer vers les yeuxSuch a constitution makes it possible not to equip the envelope of the facial seal with a visor which is essential in prior equipment, a joint whose flexibility is insufficient to allow convenient correct folding of the equipment for storage. The sealing of the connection between the envelope on the one hand, the mask and the strap on the other hand, can be made complete, there is generally a gap between the face and the envelope in a border area, behind the seal of tightness of the mask However, this gap can be made very small by an appropriate arrangement of the straps, as will be seen below. In this case, the escape to the environment of pressurized breathing gas coming from the regulator via the mask is enough to expel outwards the irritating fumes or gases which would tend to penetrate towards the eyes
La liaison étanche ou sensiblement étanche entre l'enveloppe et la sangle extensible peut être réalisée en enroulant le bord de l'enveloppe sur la gaine externe inextensible couramment prévue pour limiter l'allongement de la sangle La liaison entre l'enveloppe et la gaine inextensible de la sangle peut notamment être faite par couture ou collageThe sealed or substantially sealed connection between the envelope and the extensible strap can be carried out by winding the edge of the envelope on the inextensible external sheath commonly provided to limit the elongation of the strap The connection between the envelope and the inextensible sheath the strap can in particular be made by sewing or gluing
Le bord de l'enveloppe aura une longueur suffisante pour ne pas gêner l'allongement de la sangle en vue de la mise en place de l'équipement. Ce bord se plissera lors du dégonflage de la sangle. L'expérience montre que la contraction de la sangle lors du dégonflage se produit majoritairement dans la partie arrière, donc sans provoquer de risques de pliures affectant la visière. Il sera souvent avantageux de donner à la partie de l'enveloppe proche du masque une raideur accrue par rapport à la partie arrière de l'enveloppe pour éviter la formation de plis dans la partie avant.The edge of the envelope will be long enough not to interfere with the lengthening of the strap for the installation of the equipment. This edge will crease when deflating the strap. Experience shows that the contraction of the strap during deflation occurs mainly in the rear part, therefore without causing any risk of folds affecting the visor. It will often be advantageous to give the part of the envelope close to the mask an increased stiffness relative to the rear part of the envelope to avoid the formation of folds in the front part.
Dans une variante de réalisation, l'enveloppe ne se limite pas à un simple bonnet. Elle s'étend vers le bas à partir de la sangle unique ou de la sangle supérieure pour assurer une protection complémentaire. Dans le cas d'un harnais à deux sangles, la partie tubulaire de l'enveloppe au dessous de la sangle supérieure peut être libre par rapport à la sangle inférieure ou fixée à sa gaine. Dans le premier cas il suffit que l'enveloppe passe à l'extérieur de la sangle inférieure pour que celle-ci, lorsqu'elle se gonfle, déploie la partie inférieure et facilite la mise en place de l'équipement sur la tête. Lorsqu'en revanche on recherche une protection aussi complète que possible, il est avantageux de placer la partie inférieure de l'enveloppe à l'intérieur de la sangle inférieure. L'enveloppe peut avoir diverses constitutions, en fonction notamment de l'utilisateur auquel l'équipement est destiné et des qualités optiques requises pour la partie transparente.In an alternative embodiment, the envelope is not limited to a simple cap. It extends downward from the single strap or the top strap to provide additional protection. In the case of a harness with two straps, the tubular part of the envelope below the upper strap may be free relative to the lower strap or fixed to its sheath. In the first case, it is sufficient for the envelope to pass outside the lower strap so that the latter, when it inflates, deploys the lower part and facilitates the positioning of the equipment on the head. When, on the other hand, protection as complete as possible is sought, it is advantageous to place the lower part of the envelope inside the lower strap. The envelope can have various constitutions, depending in particular on the user for whom the equipment is intended and on the optical qualities required for the transparent part.
Dans une solution particulièrement simple, l'enveloppe est d'une seule pièce en un matériau transparent, tel que le polyuréthane ; dont une portion constitue une visière. Pour éviter la formation de plis dans la zone formant visière, cette zone peut être épaissie de façon à être moins souple que le reste.In a particularly simple solution, the envelope is in one piece made of a transparent material, such as polyurethane; a portion of which constitutes a visor. To avoid the formation of folds in the visor zone, this zone can be thickened so as to be less flexible than the rest.
La visière peut être d'une seule pièce ou constituée de hublots séparés par une partie plus mince facilitant le pliage pour le rangement.The visor can be in one piece or made of portholes separated by a thinner part facilitating folding for storage.
Une telle constitution de l'enveloppe, qui forme un bonnet recouvrant la tête, a l'intérêt d'être particulièrement simple et de fournir un champ de vision très large. Les qualités optiques que l'on peut obtenir sont généralement insuffisantes pour un pilote. En revanche, cette solution peut être adoptée pour les membres d'équipage d'avions civils ou militaires, pour lesquels une réduction légère de la précision de la vision est tolérable, ainsi que pour des usages au sol. Dans un autre mode de réalisation, l'enveloppe a une structure composite. La partie non transparente est en un tissu souple, imperméable ou très peu perméable, de préférence non inflammable et résistant à des températures élevées. On peut notamment utiliser le tissu vendu sous la marque NOMEX, enduit pour augmenter son étanchéité aux contaminants. La partie transparente est constituée par une visière souple en une seule pièce ou en deux hublots, en polyuréthane ou en un autre matériau qui peut être soit rigide lorsqu'une qualité optique élevée est nécessaire, soit légèrement souple, fixée dans les deux cas de façon étanche au tissu.Such a constitution of the envelope, which forms a cap covering the head, has the advantage of being particularly simple and of providing a very wide field of vision. The optical qualities that can be obtained are generally insufficient for a pilot. On the other hand, this solution can be adopted for the crew members of civil or military planes, for which a slight reduction in the precision of the vision is tolerable, as well as for uses on the ground. In another embodiment, the envelope has a composite structure. The non-transparent part is made of a flexible, waterproof or very little permeable fabric, preferably non-flammable and resistant to high temperatures. We can in particular use the fabric sold under the NOMEX brand, coated to increase its impermeability to contaminants. The transparent part is constituted by a flexible visor in one piece or in two portholes, in polyurethane or in another material which can be either rigid when a high optical quality is necessary, or slightly flexible, fixed in both cases so fabric tight.
Ce mode de réalisation présente l'intérêt supplémentaire que l'enveloppe constitue un bonnet protégeant le cuir chevelu contre les effets thermiques et protégeant éventuellement aussi le cou et les épaules lorsque l'enveloppe a une partie inférieure s'étendant au dessous de la sangle supérieure. Dans une variante de réalisation de l'invention, la boîte habituelle de stockage de l'équipement de tête est remplacée par un sac souple qui peut être prévu pour recevoir aussi bien un masque à harnais pneumatique de mise en place rapide qu'un masque comportant une enveloppe de protection contre les fumées.This embodiment has the additional advantage that the envelope constitutes a cap protecting the scalp against thermal effects and possibly also protecting the neck and shoulders when the envelope has a lower part extending below the upper strap. . In an alternative embodiment of the invention, the usual box for storing the head equipment is replaced by a flexible bag which can be designed to receive both a pneumatic harness mask with quick installation and a mask comprising a smoke protection envelope.
Les caractéristiques ci-dessus ainsi que d'autres apparaîtront mieux à la lecture de la description qui suit de modes particuliers de réalisation donné à titre d'exemples non limitatifs. La description se réfère aux dessins qui l'accompagnent, dans lesquels :The above characteristics as well as others will appear better on reading the following description of particular embodiments given by way of nonlimiting examples. The description refers to the accompanying drawings, in which:
- la figure 1 est une vue en perspective montrant l'aspect extérieur d'un exemple d'équipement de protection suivant l'invention, en place sur la tête ;- Figure 1 is a perspective view showing the external appearance of an example of protective equipment according to the invention, in place on the head;
- la figure 2 est un schéma en élévation de l'équipement de la figure 1 ; - la figure 3 est une vue schématique en coupe horizontale et à grande échelle montrant les jonctions entre les composants de l'équipement de la figure 1 et leur appui sur la tête ;- Figure 2 is an elevational diagram of the equipment of Figure 1; - Figure 3 is a schematic view in horizontal section on a large scale showing the junctions between the components of the equipment of Figure 1 and their support on the head;
- la figure 4 est une vue en élévation montrant un autre mode de réalisation ;- Figure 4 is an elevational view showing another embodiment;
- les figures 5 et 6 , similaires à la figure 4, montrent des variantes de réalisation ; - la figure 7 est un schéma montrant un sac de stockage en coupe et un équipement en place dans le sac, l'élément annulaire étant dégonflé.- Figures 5 and 6, similar to Figure 4, show alternative embodiments; - Figure 7 is a diagram showing a sectional storage bag and equipment in place in the bag, the annular element being deflated.
L'équipement respiratoire de secours montré sur la figure 1 dans l'état où il se trouve lorsque le harnais est placé sur la tête, peut être regardé comme comportant un masque 10 et un harnais 11. Le masque représenté a un couvre-face oro-nasal muni à l'arrière d'un joint d'étanchéité avec le visage, qui peut être constitué par un repli interne mince. Le couvre-face est fixé à un régulateur à la demande 13 et à un bloc de connexion rigide 12. Le bloc de connexion est muni d'un raccord de liaison avec une conduite flexible 17 destinée à être reliée à une source de gaz respiratoire sous pression (oxygène en général) Le harnais représenté comporte deux sangles 16a et 16b constituées chacune d'un tube interne en un matériau permettant au tube de s'allonger, contenu dans une gaine sensiblement inextensible limitant l'allongement du tube Suivant l'utilisation prévue, le régulateur 13 sera avec ou sans dilution par de l'air aspiré dans la cabine, avec possibilité de mise en surpression et alimentation en gaz respiratoire non dilué en cas de décompression à haute altitude et /ou présence de fuméeThe respiratory rescue equipment shown in FIG. 1 in the state it is in when the harness is placed on the head can be viewed as comprising a mask 10 and a harness 11. The mask shown has an oro face cover -nasal provided at the back with a seal with the face, which can be constituted by a thin internal fold. The face cover is fixed to a demand regulator 13 and to a rigid connection block 12. The connection block is provided with a connection connector with a flexible pipe 17 intended to be connected to a source of pressurized respiratory gas (oxygen in general) The harness shown comprises two straps 16a and 16b each consisting of an internal tube made of a material allowing the tube to lengthen, contained in a substantially inextensible sheath limiting the elongation of the tube Depending on the intended use, the regulator 13 will be with or without dilution by air drawn into the cabin, with the possibility of overpressure and supply of undiluted respiratory gas in the event of decompression at high altitude and / or presence of smoke
Le régulateur est mis en liaison avec la conduite d'alimentation 17 par le bloc de connexion 12. Le bloc porte des moyens à commande manuelle de gonflage des sangles 16, constitués par exemple par un robinet prévu pour être actionne par pincement manuel de deux oreilles 18 portées par le bloc de connexion 12 et dont l'une est basculanteThe regulator is connected to the supply line 17 by the connection block 12. The block carries means with manual control of inflation of the straps 16, constituted for example by a tap intended to be actuated by manual pinching of two ears 18 carried by the connection block 12 and one of which is tiltable
Le robinet est constitué de façon à mettre en communication un volume intérieur du bloc de connexion 12 et les sangles 16 avec l'atmosphère lorsqu'il est libre, ce qui permet alors aux sangles de se rétracter et d'appliquer le masque contre le visage Lorsque le robinet est actionné, il admet au contraire du gaz sous pression en provenance de la conduite d'alimentation 17 dans le volume intérieur, ce qui provoque un allongement des sangles suffisant pour permettre la mise en place rapideThe tap is made so as to put an internal volume of the connection block 12 and the straps 16 into communication with the atmosphere when it is free, which then allows the straps to retract and apply the mask against the face. When the tap is actuated, it admits, on the contrary, gas under pressure coming from the supply line 17 into the interior volume, which causes a lengthening of the straps sufficient to allow rapid fitting.
Le régulateur peut porter une capsule anéroïde constituant un détecteur altimétπque et mettant automatiquement les sangles en liaison avec l'ambiance pour provoquer le serrage maximum en cas de dépressurisation ambianteThe regulator can carry an aneroid capsule constituting an altimetric detector and automatically putting the straps in connection with the atmosphere to cause maximum tightening in the event of ambient depressurization
La disposition décrite jusqu'ici est connue Elle peut être complétée par des moyens 36 à commande manuelle (US-A 5 690 102) ou automatique (US-A- 5 503 147) de réglage de pression résiduelle dans les sangles pour réduite l'inconfort du port permanent du masque Une autre solution consiste a relier une au moins des branches du harnais au régulateur à la demande par l'intermédiaire d'un organe de réglage mécanique de longueur (demande de brevet FR 98 05949). L'invention s'applique à toutes ces constitutionsThe arrangement described so far is known. It can be supplemented by means 36 with manual (US-A 5 690 102) or automatic (US-A-5 503 147) control for adjusting the residual pressure in the straps to reduce the discomfort with the permanent wearing of the mask Another solution consists in connecting at least one of the branches of the harness to the regulator on demand by means of a mechanical length adjusting member (patent application FR 98 05949). The invention applies to all these constitutions
Dans le mode de réalisation de l'invention montré en figure 1 , l'équipement comporte également une enveloppe 30 constituant un bonnet, en matériau transparent et flexible, tel que le polyuréthane, le polyethylene ou le KAPTON , dont le bord passe au dessous de la sangle supérieure 16a, est replié autour d'elle et est raccorde de façon étanche à la gaine de limitation de l'extension de la sangle Des encoches ménagées dans le bord livrent passage aux bandes souples 32 reliant de place en place les deux sangles. L'étanchéité de la liaison avec le masque peut être assurée par simple collage d'une bande latérale 38 repliée de l'enveloppe ce qui tend à retenir la partie du bonnet qui constitue visière dans une position suffisamment écartée du visage, Cette partie formant visière et la zone de raccordement avec la bande collée peuvent être préformées et avoir une épaisseur supérieure à celle du reste de l'enveloppe pour que la visière prenne une forme bien déterminée lorsque l'équipement est en place sur la tête. L'intérieur de la visière est ventilé par apport d'air provenant du régulateur à travers des passages non représentés, pouvant être similaires à ceux du masque MAGIC décrit dans le brevet US Des. 304 384 ou le brevet US 5 630 412.In the embodiment of the invention shown in FIG. 1, the equipment also comprises an envelope 30 constituting a cap, of transparent and flexible material, such as polyurethane, polyethylene or KAPTON, the edge of which passes below the upper strap 16a is folded around it and is tightly connected to the sheath limiting the extension of the strap. Notches formed in the edge deliver passage to the flexible bands 32 connecting from place to place the two straps. The tightness of the connection with the mask can be ensured by simple bonding of a folded side band 38 of the envelope which tends to retain the part of the cap which constitutes a visor in a position sufficiently spaced from the face, this part forming a visor and the connection zone with the glued strip can be preformed and have a thickness greater than that of the rest of the envelope so that the visor takes a well-defined shape when the equipment is in place on the head. The interior of the visor is ventilated by supplying air coming from the regulator through passages not shown, which may be similar to those of the MAGIC mask described in US patent Des. 304,384 or US Patent 5,630,412.
Comme le montre la figure 3, il est difficile d'éviter la présence d'un interstice 40 le long du visage entre le joint d'étanchéité ou le bord replié du masque d'une part, le visage d'autre part et le bonnet d'autre part encore. Mais cet interstice peut être de section droite très faible si les sangles se raccordent au masque à l'avant de celui-ci, comme indiqué sur la figure 1. Il peut être obturé par une languette souple fixée au masque ou une bavette. Le gaz respiratoire sous pression provenant de l'intérieur de l'enveloppe et s échappant vers l'extérieur évite l'entrée de gaz polluant provenant de I' ambiance.As shown in Figure 3, it is difficult to avoid the presence of a gap 40 along the face between the seal or the folded edge of the mask on the one hand, the face on the other hand and the cap on the other hand again. However, this gap can be of very small cross section if the straps are connected to the mask at the front thereof, as indicated in FIG. 1. It can be closed by a flexible tongue fixed to the mask or a flap. The pressurized breathing gas coming from inside the envelope and escaping towards the outside prevents the entry of polluting gas coming from the environment.
Dans la variante de réalisation montrée en figure 4, l'enveloppe 30 se prolonge vers le bas au delà des sangles. Elle passe sous les deux sangles et elle est collée au moins à la sangle supérieure. En la collant également à la sangle inférieure, cette dernière force la partie basse à s'épanouir lorsqu'elle se gonfle, ce qui facilite la mise en place sur la têteIn the alternative embodiment shown in FIG. 4, the casing 30 extends downwards beyond the straps. It goes under the two straps and it is glued at least to the upper strap. By also sticking it to the lower strap, the latter forces the lower part to open out when it inflates, which facilitates placement on the head.
L'équipement suivant le mode de réalisation montré en figure 5 se différencie de celui de la figure 1 en ce que l'enveloppe a une structure composite La majeure partie de l'enveloppe 30 et en particulier celle qui est fixée à la gaine de la sangle supérieure 16a est en un tissu ou une pellicule d'un matériau pouvant être opaque, souple, raccordable de façon étanche à la gaine de la sangle et présentant avantageusement une résistance élevée à la chaleur. On peut notamment utiliser des tissus présentant une élasticité et/ou une souplesse facilitant la déformation requise par le raccordement à une gaine qui passe d'un état plissé à un état tendu lors de l'utilisation On peut également utiliser le NOMEX, dont sont fréquemment constituées les gaines des sanglesThe equipment according to the embodiment shown in Figure 5 differs from that of Figure 1 in that the envelope has a composite structure Most of the envelope 30 and in particular that which is fixed to the sheath of the upper strap 16a is made of a fabric or a film of a material which can be opaque, flexible, sealable to the sheath of the strap and advantageously having a high resistance to heat. One can in particular use fabrics having an elasticity and / or a flexibility facilitating the deformation required by the connection to a sheath which passes from a pleated state to a taut state during use One can also use NOMEX, of which are frequently formed the sheaths of the straps
En face des yeux l'enveloppe présente une partie transparente 41 constituant un hublot en une ou deux parties suffisamment souple pour permettre le stockage dans une boîte classique d'avion de transport, mais capable de prendre une forme bien déterminé lorsqu'il n'est plus contraint, cela afin d'avoir de bonnes qualités optiques. L ' enveloppe a une forme telle que le hublot se trouve à proximité immédiate des yeux lorsque la sangle est rétractée, afin de ne pas réduire de façon excessive la vision périphérique.In front of the eyes, the envelope has a transparent part 41 constituting a porthole in one or two parts sufficiently flexible to allow storage in a classic transport airplane box, but capable of assuming a well-defined shape when it is no longer constrained, in order to have good optical qualities. The envelope has a shape such that the porthole is in close proximity to the eyes when the strap is retracted, so as not to excessively reduce peripheral vision.
La variante de réalisation montrée en figure 6 se différencie de la précédente en ce que l'enveloppe se prolonge au dessous de la sangle supérieure 16a et passe autour de la sangle inférieure à laquelle elle peut être ou non fixée. Dans ce cas l'allongement de la sangle inférieure en vue de la mise en place de l'équipement de tête provoque un épanouissement de la partie basse de l'enveloppe, facilitant la mise en place sur la tête.The variant embodiment shown in FIG. 6 differs from the previous one in that the envelope extends below the upper strap 16a and passes around the lower strap to which it may or may not be fixed. In this case the elongation of the lower strap for the establishment of the head equipment causes a blooming of the lower part of the envelope, facilitating the establishment on the head.
Mise en place :Implementation:
En dehors des périodes d'utilisation, le masque est rangé, plié dans une boîte de stockage, par exemple du genre décrit dans le document US - A - 5 913 307, d'où déborde le bloc de connexion. Lorsque l'utilisateur souhaite mettre le masque, il saisit le bloc de connexion 12, tire l'équipement hors de la boîte et presse les oreilles 18. L'arrivée de gaz respiratoire est alors reliée au harnais qui s'allonge jusqu'à ce que les gaines externes, initialement plissées, soit tendues. Le bord de l'enveloppe 30 se déploie en suivant l'allongement du harnais. L'utilisateur peut alors placer le masque sur son visage et l'enveloppe sur la tête, jusqu'à ce qu'elle s'appuie sur le cuir chevelu. L'utilisateur relâche ensuite les oreilles 18 pour vidanger les sangles. Le masque 10 s'applique sur le visage avec une force maximale. Le bord de l'enveloppe ou une partie intermédiaire se contracte en même temps que la sangle 16a. Les plis de l'enveloppe apparaissent surtout dans la zone arrière de la sangle et sont plaqués sur la tête par le serrage de la sangle sans effet défavorable appréciable sur l'étanchéité. L'étanchéité est encore améliorée lorsque l 'enveloppe se prolonge au dessous de la sangle supérieure ou, mieux encore, des deux sangles.Outside the periods of use, the mask is stored, folded in a storage box, for example of the type described in document US-A-5,913,307, from which the connection block extends beyond. When the user wishes to put on the mask, he grasps the connection block 12, pulls the equipment out of the box and presses the ears 18. The supply of respiratory gas is then connected to the harness which lengthens until that the outer sheaths, initially pleated, be taut. The edge of the envelope 30 deploys following the elongation of the harness. The user can then place the mask on his face and wrap it over the head, until it rests on the scalp. The user then releases the ears 18 to drain the straps. Mask 10 is applied to the face with maximum force. The edge of the envelope or an intermediate part contracts at the same time as the strap 16a. The folds of the envelope mainly appear in the rear area of the strap and are pressed onto the head by tightening the strap without appreciable unfavorable effect on the seal. The seal is further improved when the envelope extends below the upper strap or, better still, the two straps.
Enlèvement du masque :Removal of the mask:
Lorsque l'utilisateur souhaite replacer l'équipement dans sa boîte, il gonfle complètement le harnais par action sur l'oreille 18. Il peut alors enlever l'ensemble de l'équipement. Une fois le masque enlevé, l'utilisateur relâche l'oreille 18 pour que le harnais et l'enveloppe deviennent souples et permettent le pliage manuel, puis le stockage de l'équipement dans sa boîte.When the user wishes to replace the equipment in its box, it fully inflates the harness by action on the ear 18. It can then remove all of the equipment. Once the mask is removed, the user releases the ear 18 so that the harness and the envelope become flexible and allow manual folding, then storage of equipment in its box.
Dans la variante montrée en figure 7, le dispositif de stockage est un sac à paroi souple 50 dont le bord délimite une ouverture de passage de masque et est muni d'un élément annulaire extensible 42 dont l'élasticité tend à le resserrer Des moyens permettant d'admettre dans l'élément du gaz comprimé pour l'allongerIn the variant shown in FIG. 7, the storage device is a flexible-walled bag 50 whose edge delimits a mask passage opening and is provided with an extensible annular element 42 whose elasticity tends to tighten it. to admit compressed gas into the element to lengthen it
L'élément annulaire 42 peut avoir une constitution similaire à celle d'une sangle de harnais gonflable, telle qu'une de celles décrites dans les documents déjà mentionnés L'élément annulaire comporte alors généralement un tube en un matériau élastique aussi étanche que possible sur lequel ou dans lequel est placée une gaine souple, mais sensiblement inextensible, dont la longueur à l'état déplissé définit la plus grande section possible de l'ouverture.The annular element 42 may have a constitution similar to that of an inflatable harness strap, such as one of those described in the documents already mentioned. The annular element then generally comprises a tube made of an elastic material as tight as possible on which or in which is placed a flexible sheath, but substantially inextensible, whose length in the unfolded state defines the largest possible section of the opening.
L'élasticité de l'élément annulaire 42 d'un tel dispositif sera avantageusement telle que cet élément, lorsqu'il est dégonflé, s'applique contre le nez du masque 10 en ne laissant subsister que des brèches beaucoup plus réduites que celle des volets d'une boîte Les moyens d'alimentation de l'élément annulaire 42 peuvent être combinés à ceux qui alimentent le harnais. Ces moyens d'alimentation peuvent par exemple comporter une vanne à trois voies 44 qui, au repos, relie l'élément à l'atmosphère et qui, lorsqu'on tire sur le masque pour le sortir du sac, vient dans une position où elle alimente l'élément annulaire en gaz comprimé. Pour cela, la vanne peut être commandée par une palette 46 placée contre le fond rigide du sac 50 et provoquant la venue de la vanne en position de vidange lorsqu'elle est poussée par le masque ou, inversement, prévue pour avoir deux positions de verrouillage élastique et être tirée par le masque lorsque celui-ci est ôté du sac.The elasticity of the annular element 42 of such a device will advantageously be such that this element, when deflated, is applied against the nose of the mask 10, leaving only gaps much smaller than that of the flaps of a box The means of supplying the annular element 42 can be combined with those which supply the harness. These supply means can for example comprise a three-way valve 44 which, at rest, connects the element to the atmosphere and which, when the mask is pulled out of the bag, comes into a position where it supplies the annular element with compressed gas. For this, the valve can be controlled by a pallet 46 placed against the rigid bottom of the bag 50 and causing the valve to come into the emptying position when it is pushed by the mask or, conversely, provided for having two locking positions. elastic and be pulled by the mask when it is removed from the bag.
Les moyens d'alimentation peuvent aussi comporter une vanne qui est amenée dans la position d'alimentation en réponse à une action manuelle sur un bouton et qui revient dans la position de vidange à l'atmosphère au bout d'une durée déterminée The supply means can also include a valve which is brought into the supply position in response to a manual action on a button and which returns to the emptying position to the atmosphere after a determined period of time.

Claims

REVENDICATIONS
1. Equipement de protection respiratoire comprenant un masque respiratoire muni d'un régulateur destiné à être relié à une source de gaz respiratoire sous pression et un harnais ayant au moins une sangle extensible (16a, 16b) dont les extrémités sont reliées au masque et qui comporte un élément qui est gonflable temporairement par le gaz sous pression pour allonger la sangle jusqu'à une dimension suffisante pour permettre à l'utilisateur d'engager le harnais sur la tête et vidangeable pour permettre à la sangle de se serrer, d'appliquer le masque contre le visage et de le maintenir en place, caractérisé par une enveloppe souple (30) recouvrant la tête, fixée de façon étanche à une gaine de limitation de l'allongement de la sangle unique, ou de la sangle supérieure (16a) au moins, du harnais et fixée au masque, la dite enveloppe étant transparente au moins dans une partie qui se trouve en face des yeux lorsque l'équipement est porté.1. Respiratory protection equipment comprising a respiratory mask provided with a regulator intended to be connected to a source of pressurized respiratory gas and a harness having at least one extensible strap (16a, 16b) the ends of which are connected to the mask and which has an element which is temporarily inflatable by pressurized gas to extend the strap to a sufficient size to allow the user to engage the harness on the head and drainable to allow the strap to tighten, to apply the mask against the face and to hold it in place, characterized by a flexible envelope (30) covering the head, tightly fixed to a sheath limiting the elongation of the single strap, or of the upper strap (16a) at least, of the harness and fixed to the mask, the said envelope being transparent at least in a part which is opposite the eyes when the equipment is worn.
2. Equipement selon la revendication 1 , caractérisé en ce que le bord de l'enveloppe est fixé sur une gaine externe inextensible prévue pour limiter l'allongement de la sangle.2. Equipment according to claim 1, characterized in that the edge of the envelope is fixed on an inextensible external sheath provided to limit the elongation of the strap.
3. Equipement selon la revendication 1 ou 2, caractérisé en ce que la partie de l'enveloppe fixée à la gaine a une longueur suffisante pour ne pas gêner l'allongement de la sangle en vue de la mise en place de l'équipement et cette partie de l'enveloppe est prévue pour se plisser lors du dégonflage de la sangle 4 Equipement selon la revendication 1 , caractérisé en ce que l'enveloppe s'étend vers le bas à partir de la sangle unique ou de la sangle supérieure.3. Equipment according to claim 1 or 2, characterized in that the part of the envelope fixed to the sheath has a sufficient length so as not to hinder the elongation of the strap for the establishment of the equipment and this part of the envelope is designed to crease during deflation of the strap 4 Equipment according to claim 1, characterized in that the envelope extends downward from the single strap or from the upper strap.
5. Equipement selon la revendication 4, à deux sangles, caractérisé en ce que la partie tubulaire de l'enveloppe au dessous de la sangle supérieure (16a) est libre par rapport à la sangle inférieure et passe soit à l'extérieur de la sangle inférieure pour que celle-ci, lorsqu'elle se gonfle, déploie la partie inférieure et facilite la mise en place de l'équipement sur la tête, soit à l'intérieur de la sangle inférieure pour une meilleure protection.5. Equipment according to claim 4, with two straps, characterized in that the tubular part of the casing below the upper strap (16a) is free relative to the lower strap and passes either outside the strap lower so that the latter, when inflated, deploys the lower part and facilitates the positioning of the equipment on the head, either inside the lower strap for better protection.
6 Equipement selon l'une quelconque des revendications précédentes, caracténsé en ce que l'enveloppe est d'une seule pièce en un matériau transparent, tel que le polyuréthane, dont une portion constitue une visière6 Equipment according to any one of the preceding claims, characterized in that the envelope is in one piece made of a transparent material, such as polyurethane, a portion of which constitutes a visor
7 Equipement selon la revendication 6, caractérisé en ce que la portion formant visière est plus épaisse et moins souple que le reste de l'enveloppe et est d'épaisseur constante ou formant deux hublots (41 ) séparés par une partie de pliage plus mince pour faciliter le rangement.7 Equipment according to claim 6, characterized in that the visor portion is thicker and less flexible than the rest of the envelope and is thick constant or forming two portholes (41) separated by a thinner folding part for easy storage.
8. Equipement selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'enveloppe a une structure composite, en une partie non transparente en tissu imperméable ou très peu perméable, de préférence non inflammable et résistant à des températures élevées, et une partie transparente constituée par une visière souple en une seule pièce ou en deux hublots, fixée de façon étanche au tissu, pliage correct commode de l'équipement en vue du stockage.8. Equipment according to any one of claims 1 to 4, characterized in that the envelope has a composite structure, in a non-transparent part made of impermeable fabric or very little permeable, preferably non-flammable and resistant to high temperatures, and a transparent part constituted by a flexible visor in a single piece or in two portholes, fixed in a leaktight manner to the fabric, convenient correct folding of the equipment for storage.
9. Equipement selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte une capsule anéroïde constituant un détecteur altimétrique et mettant automatiquement les sangles en liaison avec l'ambiance pour provoquer le serrage maximum en cas de dépressurisation ambiante. 9. Equipment according to any one of the preceding claims, characterized in that it comprises an aneroid capsule constituting an altimetric detector and automatically putting the straps in connection with the atmosphere to cause maximum tightening in the event of ambient depressurization.
EP01915448A 2000-03-10 2001-03-06 Quick-donning protective head equipment Revoked EP1177017B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0003110A FR2806000B1 (en) 2000-03-10 2000-03-10 QUICK-SETTING HEAD PROTECTION EQUIPMENT
FR0003110 2000-03-10
PCT/FR2001/000659 WO2001068187A1 (en) 2000-03-10 2001-03-06 Protective equipment with fast fixing head

Publications (2)

Publication Number Publication Date
EP1177017A1 true EP1177017A1 (en) 2002-02-06
EP1177017B1 EP1177017B1 (en) 2007-12-26

Family

ID=8847964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01915448A Revoked EP1177017B1 (en) 2000-03-10 2001-03-06 Quick-donning protective head equipment

Country Status (10)

Country Link
US (1) US6588424B2 (en)
EP (1) EP1177017B1 (en)
JP (1) JP2003526486A (en)
AT (1) ATE381959T1 (en)
AU (1) AU4254301A (en)
CA (1) CA2373668C (en)
DE (1) DE60132051T2 (en)
ES (1) ES2298222T3 (en)
FR (1) FR2806000B1 (en)
WO (1) WO2001068187A1 (en)

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Also Published As

Publication number Publication date
CA2373668C (en) 2007-05-15
AU4254301A (en) 2001-09-24
ES2298222T3 (en) 2008-05-16
FR2806000A1 (en) 2001-09-14
EP1177017B1 (en) 2007-12-26
ATE381959T1 (en) 2008-01-15
US20020157668A1 (en) 2002-10-31
CA2373668A1 (en) 2001-09-20
FR2806000B1 (en) 2002-05-31
DE60132051D1 (en) 2008-02-07
WO2001068187A1 (en) 2001-09-20
JP2003526486A (en) 2003-09-09
DE60132051T2 (en) 2008-12-18
US6588424B2 (en) 2003-07-08

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