EP3294422A1 - Ensemble soupape d'expiration pour dispositif de protection pouvant être porté - Google Patents

Ensemble soupape d'expiration pour dispositif de protection pouvant être porté

Info

Publication number
EP3294422A1
EP3294422A1 EP16729613.6A EP16729613A EP3294422A1 EP 3294422 A1 EP3294422 A1 EP 3294422A1 EP 16729613 A EP16729613 A EP 16729613A EP 3294422 A1 EP3294422 A1 EP 3294422A1
Authority
EP
European Patent Office
Prior art keywords
valve
cover
locking
valve cover
assembly 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.)
Pending
Application number
EP16729613.6A
Other languages
German (de)
English (en)
Inventor
Richard Fleming
Clive Johnstone
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.)
JSP Ltd
Original Assignee
JSP Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JSP Ltd filed Critical JSP Ltd
Publication of EP3294422A1 publication Critical patent/EP3294422A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • A62B9/04—Couplings; Supporting frames
    • 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
    • A62B9/02—Valves
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • 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
    • 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
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/10—Respiratory apparatus with filter elements

Definitions

  • This invention relates generally to a wearable protective device and, more particularly but not necessarily exclusively, to a facial breathing mask incorporating an exhalation valve, and a removable cover for such an exhalation valve.
  • One such known mask comprises a resiliency flexible, e.g. rubberised, mask body configured to fit over a user's nose and mouth, in use, and including a generally central opening, in which is provided an opening defining an airway and having provided therein a set of radial support members, over which is provided a flexible diaphragm configured to define a one-way exhalation valve.
  • the mask body is further provided with a pair of openings at opposing sides or 'cheek' portions thereof, for receiving respective filter cartridges.
  • the diaphragm In use, when a user inhales, the diaphragm seals the central opening and the inhaled air is forced to pass through the filter cartridges to the user's nose and mouth. When the user exhales, the force of the airflow causes the edges of the diaphragm to flex away from the central opening support members, allowing exhaled air to pass therethrough out of the mask.
  • such a removable cover is generally configured to clip on and off the face mask (in a linear direction).
  • the valve cover can, relatively easily, be dislodged and inadvertently removed.
  • an exhalation valve assembly for a wearable protective device, said assembly comprising a valve support for receiving a valve member, in use, a valve cover and a releasable mounting mechanism for releasably mounting said valve cover to said valve support so as to substantially cover said valve member, said mounting mechanism comprising a bayonet locking mechanism having a first part located on said valve support and a second part located on said valve cover, said first and second part being configured to engage in a locked configuration when said valve cover is rotated, in use, relative to said valve support from an unlocked configuration.
  • the mounting mechanism may comprise at least two spaced apart locking members on said valve support, each locking member defining a locking edge, and at least two spaced apart openings in said valve cover, the location of said openings corresponding substantially to the location on said valve support of said locking members when said valve cover is located thereon so as to substantially cover said valve member such that the locking edge of each locking member engages with a locking edge of a respective opening in said valve cover, said first part of said bayonet locking mechanism being provided on each said locking member locking edge and said second part of said bayonet locking mechanism being provided on each said valve cover opening locking edge.
  • the locking members may be located adjacent substantially diametrically opposing edges of said valve support and said valve cover openings are located adjacent corresponding substantially diametrically opposing edges of said valve cover.
  • valve cover may comprise an open ended receptacle having side walls defining an enclosure and a cover at one end thereof, wherein said valve cover openings extend over at least 50% of the axial length of said side walls.
  • valve cover openings may extend over between 50 and 75% of the axial length of said side walls. In an alternative exemplary embodiment, the valve cover openings may extend over more than 75% of the axial length of said side walls.
  • the mounting mechanism may comprise at least a third locking member on said valve support defining a locking edge and including a first part of said bayonet locking mechanism, and at least a third opening in said valve cover defining a locking edge and including a second part of said bayonet locking mechanism.
  • the first part of said bayonet locking mechanism may comprise a notch located along the length of the locking edge of each said locking member, and said second part of said bayonet locking mechanism may comprise a projection located along the length of the locking edge of each said opening in said valve cover.
  • the notch may be provided on the locking edge of the valve cover openings, and the projection may be provided on the locking edge of the locking members.
  • each said notch may be stepped or relatively steeply tapered, and said locking edge on at least one side of said notch is provided with a relatively shallowly tapered profile.
  • the locking edge on at least one side of said notch may have a substantially convex curved profile along the direction of travel of said valve cover relative to said valve support during rotation thereof from said unlocked configuration to said locked configuration, in use.
  • the valve cover may comprise two outer cover sections, a first, raised cover section and a second, lower cover section, said first and second cover sections defining a vertical through-hole therebetween.
  • Figure 1 is a perspective view of an exhalation valve and cover according to an exemplary embodiment of the present invention
  • Figure 2 is an exploded perspective view of a respiratory face mask incorporating the exhalation valve and cover of Figure 1 ;
  • Figure 3 is a schematic front view of the respiratory face mask of Figure 2, in its fully assembled configuration, but with the cover removed;
  • Figure 3 a is a schematic side view of the respiratory face mask of Figure 3;
  • Figure 3b is a schematic partial front view of a portion of the locking mechanism used in the exhalation valve of Figure 1 ;
  • Figure 3c is a schematic partial side view of a portion of the locking mechanism used in the exhalation valve of Figure 1 ;
  • Figure 4 is a front view of the respiratory face mask of Figure 2 in its fully assembled configuration, including the cover in its unlocked configuration;
  • Figure 5 is a front view of the respiratory face mask of Figure 4, with the cover in its locked configuration
  • Figure 6 is a partial side view of an exhalation valve according to an exemplary embodiment of the present invention, with the cover in its unlocked configuration
  • Figure 7 is a partial side view of the exhalation valve of Figure 6, with the cover in its locked configuration.
  • a respiratory mask including an exhalation valve comprises a rubberised mask body 6, a rigid inner body 1, a strap ring 2, a diaphragm 3 and an exhalation valve cage (or cover) 4.
  • Each of these elements fits together to form a complete respiratory mask having side openings 36a for receiving a respective disposable filter cartridge (not shown).
  • the inner body 1 is sealed and affixed within the mask body 6, but the strap ring 2, diaphragm 3 and valve cover 4 can all be removed and re-attached as required.
  • the inner body 1 defines a substantially rigid plate la defining a generally central, substantially circular collar lb that projects outwardly from the opening 6a in the mask body 6.
  • the collar lb is spanned by six substantially equi- angularly spaced support struts 8 which extend, substantially radially, from a generally central pin hole 9.
  • a pair of openings are provided on opposing sides of the mask body 6 and configured to removably receive respective disposable filter cartridges of any known configuration.
  • a flexible diaphragm 3 is provided over the opening defined by the collar lb and is supported by the struts 8, and secured by a rearwardly projecting pin which is integrally formed with the diaphragm 3 and configured to be received within the pin hole 9.
  • three generally L-shaped locking members 110 are integrally formed with the inner body and located adjacent to the circumferential edge of the collar lb.
  • Each locking member 110 comprises an elongate leg portion 110a and a shorter flange portion 110b at its distal end which extends substantially orthogonally to the longitudinal axis of the leg portion 110a to create the substantially reshaped locking member 110.
  • Each locking member 110 extends, from the proximal end of the respective leg portion 110a, outwardly and at a slight angle to the front face of rigid plate la, and the flange portion of 110b of each locking member 110 extends radially outward relative to the opening 6a and substantially parallel to the principal plane of the rigid plate la, as shown most clearly in Figure 3b of the drawings.
  • the free edge of the flange portion 110b of each locking member 110 is profiled to include a notch 110c at an intermediate distance along its lateral length.
  • the notch 110c is defined by stepped or sharply tapered inner edges and a curved and convex profile leading to a shallower taper at a location laterally distant from the notch 110c.
  • the strap ring 2 defines a generally central recess 2a defining an opening 2b, that accommodates the collar lb of the inner body 1, over which the diaphragm 3 is mounted, when the respiratory mask is fully assembled for use.
  • the opening 2b is framed by a substantially circular border 2c defining the inner
  • the valve cage or cover 4 comprises a generally cylindrical, substantially rigid shell 4a, which may be transparent and formed of, for example, plastics material.
  • the cylindrical shell is circumferentially dimensioned to fit within the recess 2a of the strap ring 2 when the respiratory mask is fully assembled for use.
  • the shell is provided with an outer cover having a first, raised convex portion 4b and a second, lower substantially flat portion 4c, defining a generally central upper opening 4d therebetween.
  • a vertical support member 4e is provided vertically across the opening 4d between the raised and lower cover portions 4b, 4c.
  • the side edges of the shell 4a are provided with cut-away portions in the form of substantially rectangular openings 20a, 20b, 20c which extend laterally from the outer edge of a respective cover portion and a location close to the opposite longitudinal edge of the shell 4a, i.e. close to the circumferential edge of the strap ring recess 2a when the respiratory mask is fully assembled for use, and spanning almost the entire length of the cylindrical shell portion 4a of the cover.
  • the lower edge of each of the rectangular openings 20a, 20b, 20c is provided with a respective tooth or rib 13 at a location that is off-centre along its length.
  • the relative locations of the openings 20a, 20b, 20c in the shell of the valve cage or cover 4 correspond generally to the relative locations of the locking members 110 provided on the inner body 1 and the circumference of the shell 4a, at least at the location of the openings 20a, 20b, 20c is such that the locking members 110 can be accommodated within the shell at these respective locations when the respiratory mask is fully assembled for use.
  • Further openings 22 may be provided at the circumferential locations around the side of the shell 4a, as required, to further decrease breathing resistance, as will be discussed in more detail later.
  • valve cage 4 can be placed over the exhalation valve of the respiratory mask (outwardly defined by the diaphragm 3), and twisted relative to the locking members 110 to lock the valve cage (in the form of a cover) over the exhalation valve assembly.
  • the locking mechanism is in the form of a bayonet locking mechanism, with the notch 110c in each of the flange portions 110b of respective locking members 110 forming the female receptor of the locking mechanism and the tooth or rib 13 on the inner edge of each of the openings 20a, 20b, 20c forming the male part of the mechanism.
  • each opening 20a, 20b, 20c has a raised tooth 13 on the innermost edge of the aperture relative to the main body 6 of the respiratory mask, when in a fully assembled configuration for use.
  • the raised tooth 13 of each opening 20a, 20b, 20c corresponds to a notch 110c in the flange portion 110b of each locking member 110.
  • the valve cage 4 can be lifted from the assembly, releasing the strap ring 2 and enabling the exhalation valve to be dismantled. This may, for example, be necessary in order to remove and clean the diaphragm 3, a task which generally needs to be performed on a regular basis.
  • each raised tooth 13 sits inside each notch 110c in each respective flange portion 110b of the locking members 110, preventing the valve cage 4 from rotating and subsequently lifting from the assembly.
  • the shallow taper and curved profile of the leading inner edge of each opening 20a, 20b, 20c (in the direction of travel of the cover when being rotated from the unlocked to the locked configuration) allows the locking action to be effected with relatively little force.
  • the steeper, stepped edges immediately adjacent the each notch 110c means that a much greater force is required to unlock the valve cage 4 to remove it, thereby minimising its accidental removal, in use.
  • valve cage locking mechanism and the use of the large side openings as part of the locking mechanism itself, enables the cover to be provided with a relatively large open area, and breathing resistance is thereby minimised.
  • two of the locking members 110, and therefore two of the flange portions 110b are of the same dimensions, whilst a third locking member 110, and therefore the respective third flange portion 110b, is of a different, smaller, dimension.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Valve Housings (AREA)

Abstract

L'invention concerne un ensemble soupape d'expiration pour un dispositif de protection pouvant être porté, ledit ensemble comprenant un support de soupape pour la réception d'un élément soupape, lors de l'utilisation, un couvercle de soupape (4) et un mécanisme de montage amovible permettant de monter de manière amovible ledit couvercle de soupape sur ledit support de soupape de manière à recouvrir en grande partie ledit élément soupape, ledit mécanisme de montage comprenant un mécanisme de verrouillage à baïonnette comprenant une première partie (110c) située sur ledit support de soupape et une seconde partie (20a, 20b, 20c) située sur ledit couvercle de soupape (4), lesdites première et seconde parties étant conçues de manière à venir en prise dans une configuration verrouillée lorsque ledit couvercle de soupape (4) est amené à tourner, lors de l'utilisation, par rapport audit support de soupape à partir d'une configuration déverrouillée.
EP16729613.6A 2015-05-14 2016-05-11 Ensemble soupape d'expiration pour dispositif de protection pouvant être porté Pending EP3294422A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1508264.7A GB2538284B (en) 2015-05-14 2015-05-14 Wearable protective device
PCT/GB2016/051355 WO2016181144A1 (fr) 2015-05-14 2016-05-11 Ensemble soupape d'expiration pour dispositif de protection pouvant être porté

Publications (1)

Publication Number Publication Date
EP3294422A1 true EP3294422A1 (fr) 2018-03-21

Family

ID=53489633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16729613.6A Pending EP3294422A1 (fr) 2015-05-14 2016-05-11 Ensemble soupape d'expiration pour dispositif de protection pouvant être porté

Country Status (5)

Country Link
EP (1) EP3294422A1 (fr)
CN (1) CN208959331U (fr)
EA (1) EA037028B1 (fr)
GB (1) GB2538284B (fr)
WO (1) WO2016181144A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3148623A4 (fr) * 2014-05-26 2017-12-20 Innosparks Pte Ltd Dispositif respiratoire à valve unidirectionnelle pour fixer un système de ventilation actif
US11266861B2 (en) 2015-06-10 2022-03-08 Louis M. Gerson Co., Inc. Face mask assembly
RU2015141569A (ru) * 2015-09-30 2017-04-05 3М Инновейтив Пропертиз Компани Складной респиратор с лицевой маской и клапаном выдоха
WO2019241133A1 (fr) * 2018-06-11 2019-12-19 Louis M. Gerson Co., Inc. Ensemble masque facial
CN110580966A (zh) * 2019-09-09 2019-12-17 潍坊护理职业学院 一种具有抗菌防辐射功能的内科专用防护服

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB530289A (en) * 1939-02-13 1940-12-09 Otto Heinrich Draeger Exhalation valve device for gas masks
US2929376A (en) * 1956-02-27 1960-03-22 Garrett Corp Underwater breathing apparatus
US4850346A (en) * 1986-10-20 1989-07-25 Wgm Safety Corp. Respirator
US4934631A (en) * 1989-01-09 1990-06-19 Ulysses Corporation Lighter-than-air type vehicle
US7866319B2 (en) * 2004-09-27 2011-01-11 Avon Protection Systems, Inc. Respirator exhalation unit
EP1647310B1 (fr) * 2004-10-15 2007-08-15 Moldex-Metric Ag & Co. Kg Masque respiratoire avec valve d'expiration
WO2006118599A1 (fr) * 2005-04-29 2006-11-09 North Safety Products Inc. Dispositif de verification d’etancheite de masque facial
EP2243518B1 (fr) * 2009-04-24 2013-01-02 Moldex-Metric AG & Co. KG Masque respiratoire
US8365771B2 (en) * 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
CA2786166A1 (fr) * 2011-08-16 2013-02-16 Green-Lights Inc. Connecteur electrique
CN202751705U (zh) * 2012-09-03 2013-02-27 上海港凯净化制品有限公司 一种呼吸阀结构
US9192794B2 (en) * 2012-10-25 2015-11-24 Honeywell International Inc. Noise reduction system for supplied air respirator
US9192796B2 (en) * 2012-10-25 2015-11-24 Honeywell International Inc. Method of donning and testing abrasive blast respirator
GB2508184A (en) * 2012-11-22 2014-05-28 3M Innovative Properties Co Powered exhaust apparatus for respiratory device
CN203915821U (zh) * 2014-06-11 2014-11-05 上海兴诺康纶纤维科技股份有限公司 一种呼吸阀
CN204447026U (zh) * 2014-12-09 2015-07-08 蓝色智库（北京）科技发展有限公司 一种三层塑料卡扣式呼吸阀

Also Published As

Publication number Publication date
EA201792260A1 (ru) 2018-05-31
WO2016181144A1 (fr) 2016-11-17
EA037028B1 (ru) 2021-01-28
GB201508264D0 (en) 2015-06-24
GB2538284B (en) 2021-05-05
CN208959331U (zh) 2019-06-11
GB2538284A (en) 2016-11-16

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