NO833119L - FILTERING BREATHING MASK - Google Patents
FILTERING BREATHING MASKInfo
- Publication number
- NO833119L NO833119L NO833119A NO833119A NO833119L NO 833119 L NO833119 L NO 833119L NO 833119 A NO833119 A NO 833119A NO 833119 A NO833119 A NO 833119A NO 833119 L NO833119 L NO 833119L
- Authority
- NO
- Norway
- Prior art keywords
- mask
- mask body
- filtering
- support layer
- filtering breathing
- Prior art date
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims description 15
- 238000001914 filtration Methods 0.000 title claims description 11
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 229920001410 Microfiber Polymers 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000003658 microfiber Substances 0.000 claims 1
- 239000012209 synthetic fiber Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
- A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
- A41D13/1146—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Fats And Perfumes (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Gyroscopes (AREA)
Description
Oppfinnelsen vedrører en "filtrerende pustehalvmaske", som angitt i krav l's innledning. The invention relates to a "filtering breathing half mask", as stated in the introduction of claim 1.
"Filtrerende pustehalvmasker" benyttes for å hindre en inn-trenging av skadelige stoffer i bærerens pusteorganer. Innen-for medisinen tjener slike masker til å hindre at kimstoffer i det medisinske personells pusteluft kan trenge ut og skade pasienten. Pustehalvmasker må kunne fremstilles på en økonomisk måte. Dette forutsetter en enkel oppbygging og at det er mulig å benytte maskinell fremstilling. "Filtering breathing half-masks" are used to prevent the penetration of harmful substances into the wearer's respiratory organs. In medicine, such masks serve to prevent germs in the medical personnel's breathing air from escaping and harming the patient. Breathing half masks must be able to be manufactured in an economical way. This requires a simple structure and that it is possible to use mechanical manufacturing.
En kjent engangs-pustemaske, en "filtrerende pustehalvmaske" av den type som foreliggende oppfinnelse vedrører, har et begerformet maskelegeme av et flerlags-materiale som filtrerer støv og tåke. Maskelegemet er formet slik at det sitter godt over nesen, kinnene og haken.til benytteren. Kantene til filtermateriallagene er ført sammen for dannelse av en tett-ende kant langs maskelegemet. Hodebånd er festet til kanten, som for dette formål har fremspring. Over maskelegemets øver-ste nesedel festes det ved hjelp av et varmsmeltende klebe-middel et vinkelformet og fortrinnsvis av metall fremstilt nesestykke. Nesestykket trykkes mot masken etter påsettingen og skal holde masken over nesen. Materialet i maskelegemet består av tre lag: et indre lag som vender mot ansiktet og består av innbyrdes forbundne kunststoff-fibre, et fra ansiktet ytre lag som består av et tett nettverk av kunststoff -f ibre i et bindemiddel,og et mellomliggende løst filterlag av løst sammenblandede fibre. I utgangstilstanden danner disse lagene et flatt, arkformet materiale. For fremstillingen av det begerformede maskelegeme blir materialet presses i en oppvarmet, med et tilsvarende hulrom utformet form ved hjelp av et stempel, slik at maskeformen fremkommer. Samtidig dannes kanten hvor hodebåndene skal festes etter kantskjæringen. Bortsett fra den kompliserte og dyre oppbyggingen av trelags-materialet endres dette på en ujevn og ukontrollerbar måte under dy.ptrekkingen ved fremstillingen av maskelegemet. Man er således ikke sikret at den ferdige gjenstand har de ønskede filteregenskaper og at disse er enhetlige over den filtrerende maske. Den tette anligg-ingen av de ytre sjikt kan gi en høy motstand når fibre i filterlaget under trykkpåvirkningen under trekkingen legger seg foran og inn i åpningene i de ytre lag. Den løse oppbyggingen av filterlaget kan bevirke at det i dette kan fore-komme forskyvninger med farlige lommedannelser, særlig når maskelegemet knekkes utilsiktet ved en midlertidig fralegging ellerved en. bærirjg i beredskapsstilling (DE-OS 27 17 968) . A known disposable breathing mask, a "filtering breathing half mask" of the type to which the present invention relates, has a cup-shaped mask body of a multi-layered material which filters dust and fog. The mask body is shaped so that it sits well over the user's nose, cheeks and chin. The edges of the filter material layers are brought together to form a close-ended edge along the mesh body. The headband is attached to the edge, which has protrusions for this purpose. Above the upper nose part of the mask body, an angular nose piece, preferably made of metal, is attached using a hot-melting adhesive. The nosepiece is pressed against the mask after fitting and should hold the mask over the nose. The material in the mask body consists of three layers: an inner layer that faces the face and consists of interconnected plastic fibers, an outer layer from the face that consists of a dense network of plastic fibers in a binder, and an intermediate loose filter layer of loosely intermingled fibers. In the initial state, these layers form a flat, sheet-shaped material. For the production of the cup-shaped mask body, the material is pressed into a heated mold with a corresponding cavity designed by means of a stamp, so that the mask shape appears. At the same time, the edge is formed where the headbands are to be attached after the edge cutting. Apart from the complicated and expensive construction of the three-layer material, this changes in an uneven and uncontrollable way during the drawing during the production of the mesh body. It is thus not ensured that the finished object has the desired filter properties and that these are uniform across the filtering mesh. The close contact of the outer layers can give a high resistance when fibers in the filter layer, under the influence of pressure during pulling, lie in front of and into the openings in the outer layers. The loose structure of the filter layer can cause displacements to occur in this with dangerous pocket formations, especially when the mask body is broken accidentally during a temporary lay-off or during a carrier in standby position (DE-OS 27 17 968) .
Hensikten med oppfinnelsen er å tilveiebringe en "filtrerende pustehalvmaske" som har en enkel oppbygging, er formstabil også ved lengre tids benyttelse, er meget uømfintlig overfor ytre mekaniske påkjenninger og også kan fremstilles på en økonomisk måte. The purpose of the invention is to provide a "filtering breathing half mask" which has a simple structure, is dimensionally stable even when used for a long time, is very insensitive to external mechanical stresses and can also be produced in an economical way.
Ifølge oppfinnelsen oppnås dette ved en filtrerende pustehalvmaske med de trekk som fremgår av karakteristikken i krav .1. En fordelaktig videreutvikling er angitt i krav 2. According to the invention, this is achieved by a filtering breathing half-mask with the features that appear from the characteristic in claim .1. An advantageous further development is stated in claim 2.
Den enkle oppbyggingen av maskelegemet av bare to lag, hvis medier ikke lenger behøves å deformeres for oppnåelse av en forbindelse mellom filterdelen og det ytre støttelag, garanterer fremfor alt en kjent filtervirkning med en defin-ert pusemotstand. De ømfintlige fiberne i filtermediet forskyves ikke lenger i forhold til hverandre med tilhørende påkjenninger. Det ytre støttelag av grovmasket kunststoff-vevnad sikrer en nødvendig formstabilitet som også bibeholdes når pustehalvmasken av og til tas av og trykkes sammen, f.eks. bæres i en veske. Maskeformen bibeholdes også ved en gjennomfuktning som følge av pusting og svettedannelse. Materialet i det ytre støttelag medfører at filterdelen får en høy mekanisk slitefasthet. The simple construction of the mesh body of only two layers, whose media no longer needs to be deformed to achieve a connection between the filter part and the outer support layer, above all guarantees a known filter effect with a defined puss resistance. The delicate fibers in the filter medium are no longer displaced in relation to each other with associated stresses. The outer support layer of coarse-mesh synthetic fabric ensures the necessary shape stability, which is also maintained when the breathing half mask is occasionally removed and pressed together, e.g. carried in a bag. The shape of the mask is also maintained through wetting as a result of breathing and sweating. The material in the outer support layer means that the filter part has a high mechanical wear resistance.
Et utførelseseksempel av den "filtrerende pustehalvmaske" An embodiment of the "filtering breathing half mask"
ifølge oppfinnelsen er vist på tegningen og skal beskrives nedenfor. according to the invention is shown in the drawing and will be described below.
Maskelegemet 1 har den fra vanlige halvmasker kjente form. Masken slutter seg bekvemt og på en tett måte over nesen, kinnene og haken til bæreren. I det indre av masken er det tilstrekkelig fritt rom til å sikre en uforstyrret pusting. The mask body 1 has the shape known from ordinary half masks. The mask fits comfortably and tightly over the wearer's nose, cheeks and chin. In the interior of the mask there is sufficient free space to ensure undisturbed breathing.
Maskelegemet 1, som er den filtrerende del, består av en indre homogen, fast og motstandsdyktig filterdel 2 av en blanding av kunststoff- og mikroglassfibre. Filterdelen 2 er tildekket med et ytre støttelag 3 med samme form. Filterdelen 2 og støttelaget 3 er ved kanten 4 forbundne med hverandre ved hjelp av sveising eller sammenklebing, med samtidig dannelse av en tetningskant. Det preformede støttelag 3 består av en grovmasket vednad av kunstfibre med en maskevidde på ca. 1,0 mm. The mask body 1, which is the filtering part, consists of an internal homogeneous, solid and resistant filter part 2 of a mixture of plastic and micro-glass fibres. The filter part 2 is covered with an outer support layer 3 of the same shape. The filter part 2 and the support layer 3 are connected to each other at the edge 4 by means of welding or gluing together, with the simultaneous formation of a sealing edge. The preformed support layer 3 consists of a coarse-mesh layer of artificial fibers with a mesh width of approx. 1.0 mm.
En ytterligere forbindelse mellom filterdelen 2 og det ytre støttelag 3 er foretatt ved hjelp av sveise- eller klebepunkter 5 i maskelegemets 1 dybde. A further connection between the filter part 2 and the outer support layer 3 is made by means of welding or adhesive points 5 in the depth of the mesh body 1.
En neseklemme 6 sikrer avtetning også på dette sted, ved trykking mot nesen. Hodebånd 8 er festet til maskelegemet 1 ved hjelp av ører 7. A nose clip 6 also ensures sealing in this place, by pressing against the nose. The headband 8 is attached to the mask body 1 by means of ears 7.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823204322 DE3204322A1 (en) | 1982-02-09 | 1982-02-09 | FILTERING BREATH HALF MASK |
Publications (1)
Publication Number | Publication Date |
---|---|
NO833119L true NO833119L (en) | 1983-08-30 |
Family
ID=6155118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO833119A NO833119L (en) | 1982-02-09 | 1983-08-30 | FILTERING BREATHING MASK |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0099915A1 (en) |
DE (1) | DE3204322A1 (en) |
DK (1) | DK461083A (en) |
FI (1) | FI833173A0 (en) |
NO (1) | NO833119L (en) |
WO (1) | WO1983002726A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0266456A1 (en) * | 1986-11-06 | 1988-05-11 | Moldex-Metric AG & Co.KG | Respiratory face mask |
CA2488336A1 (en) * | 2002-06-05 | 2003-12-18 | Louis M. Gerson Co., Inc. | Face mask and method of manufacturing the same |
US7677248B2 (en) | 2002-06-05 | 2010-03-16 | Louis M. Gerson Co., Inc. | Stiffened filter mask |
CN104839910A (en) * | 2015-05-21 | 2015-08-19 | 马振原 | Single-point welding mask |
DE102020134616B4 (en) | 2020-12-22 | 2023-08-03 | HMT Hygiene- Medizin- & Krankenhaus-Technik GmbH | protective mask |
DE102020134665B4 (en) | 2020-12-22 | 2024-04-25 | HMT Hygiene- Medizin- & Krankenhaus-Technik GmbH | Protective mask |
DE102020134675A1 (en) | 2020-12-22 | 2022-06-23 | HMT Hygiene- Medizin- & Krankenhaus-Technik GmbH | protective mask |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1112408B (en) * | 1958-01-02 | 1961-08-03 | Draegerwerk Ag | Half mask-shaped dust filter |
US3695265A (en) * | 1970-10-26 | 1972-10-03 | Elmer Lawrence Brevik | Face mask |
FR2256747A1 (en) * | 1974-01-08 | 1975-08-01 | Johnson & Johnson | Surgical facial masks prodn. - from thermoplastic filaments aligned perpendicular to direction of air flow |
SE7601232L (en) * | 1976-02-05 | 1977-08-06 | Reboprodukter Goran Segersten | FACE MASK WITH REPLACABLE FILTER |
DE2717968A1 (en) * | 1976-05-11 | 1977-12-01 | American Optical Corp | DISPOSABLE BREATHING MASK, METHOD AND DEVICE FOR MANUFACTURING THE SAME |
FR2430774A1 (en) * | 1978-07-13 | 1980-02-08 | Giffard L | Disposable industrial breathing mask - has flexible T=shaped seal around mask perimeter with increased section around nose and mouth |
FR2433952A1 (en) * | 1978-08-22 | 1980-03-21 | Seplast Sa | DOUBLE WALL FILTERING MASK |
GB2077112B (en) * | 1980-06-09 | 1985-03-13 | Metric Prod Inc | Face mask |
US4319567A (en) * | 1980-07-07 | 1982-03-16 | Moldex/Metric Products, Inc. | Disposable face mask |
-
1982
- 1982-02-09 DE DE19823204322 patent/DE3204322A1/en not_active Ceased
-
1983
- 1983-02-05 WO PCT/DE1983/000021 patent/WO1983002726A1/en not_active Application Discontinuation
- 1983-02-05 EP EP83900620A patent/EP0099915A1/en not_active Ceased
- 1983-08-30 NO NO833119A patent/NO833119L/en unknown
- 1983-09-06 FI FI833173A patent/FI833173A0/en not_active Application Discontinuation
- 1983-10-06 DK DK461083A patent/DK461083A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE3204322A1 (en) | 1983-08-11 |
FI833173A (en) | 1983-09-06 |
DK461083D0 (en) | 1983-10-06 |
FI833173A0 (en) | 1983-09-06 |
WO1983002726A1 (en) | 1983-08-18 |
DK461083A (en) | 1983-10-06 |
EP0099915A1 (en) | 1984-02-08 |
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