EP0099915A1 - Filtering respiratory half-mask - Google Patents

Filtering respiratory half-mask

Info

Publication number
EP0099915A1
EP0099915A1 EP83900620A EP83900620A EP0099915A1 EP 0099915 A1 EP0099915 A1 EP 0099915A1 EP 83900620 A EP83900620 A EP 83900620A EP 83900620 A EP83900620 A EP 83900620A EP 0099915 A1 EP0099915 A1 EP 0099915A1
Authority
EP
European Patent Office
Prior art keywords
mask
mask body
nose
filtering
respiratory half
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.)
Ceased
Application number
EP83900620A
Other languages
German (de)
French (fr)
Inventor
Carl-Ernst Van Der Smissen
Johannes Heckmann
Hans-Joachim Walther
Joachim Schlobohm
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP0099915A1 publication Critical patent/EP0099915A1/en
Ceased legal-status Critical Current

Links

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

Definitions

  • the invention relates to a "filtering respiratory half mask", according to the preamble of claim 1.
  • Frtering respiratory half-masks fulfill their protective task in commercial use in preventing the penetration of harmful substances into the respiratory organs of the wearer and in medical use, conversely, the passage of germs from the breathing air of medical personnel to the detriment of the patient. They have to be provided economically. This requires a simple design and the possibility of machine production.
  • a known single-use breathing mask a "filtering breathing half mask” in the sense of the present invention, has a cup-shaped mask body made of a multilayer. Dust and mist filtering material.
  • the mask body is shaped in such a way that there is a tight fit over the nose, cheeks and chin of the user.
  • the edges of the layers of the filter material are designed to seal with one another as an edge of the mask body. Headbands are attached to the edge, which has protrusions.
  • a hot-melt adhesive is used to apply an angular and protruding shape over the uppermost nose part of the mask body. preferably made of metal nose piece attached. The nose piece is pressed on after the mask is put on and is intended to hold the mask over the nose.
  • the material of the mask body consists of three layers:
  • the inner layer facing the face consists of interconnected plastic fibers.
  • the outer layer facing away from the face consists of an intimate network of plastic fibers in a binder. In between is a medium loose filter layer of loosely mixed fibers. In the original state, these layers form a flat, sheet-like material.
  • To produce the cup-shaped mask body it is pressed into the mask shape in a heated mold containing a corresponding cavity by means of a stamp. This creates the edge to which the headbands are attached after trimming. Apart from the complicated and expensive structure of the three-layer material, this is changed by the deep-drawing process in the manufacture of the mask body in an uneven and hardly manageable manner.
  • the object of the invention is a "filtering respiratory half mask" which is simple in construction, remains dimensionally stable even after prolonged use, is largely insensitive to external mechanical influences and can be provided economically.
  • the sensitive fibers of the filter medium are no longer shifted against each other and thereby stressed.
  • the outer support layer made of the coarse-mesh plastic fabric ensures a necessary one
  • the mask body 1 has the known shape of the normal half masks. The result is a comfortable, tight fit over the nose, cheeks and chin of the wearer. There is sufficient free space inside that ensures undisturbed breathing.
  • the mask body 1, as the filtering part, consists of an inner homogeneous, solid and resistant filter part 2 made of a mixture of plastic and micro glass fibers.
  • the filter part 2 is covered by an outer support layer 3 of the same configuration.
  • the filter part 2 and the support layer 3 are connected to one another at the edge 4, thereby simultaneously forming a sealing edge, by welding or gluing.
  • the preformed support layer 3 consists of a coarse-mesh fabric made of synthetic fibers with a mesh size of approximately 1.0 mm.
  • a further connection of the filter part 2 to the outer support layer 3 takes place via welding or adhesive spots 5 in the depth of the mask body 1.
  • a nose clip 6 also secures the seal at this point by pressing on the nose.
  • a head strap 8 is held on the mask body 1 by means of eyelets 7.

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)
  • Gyroscopes (AREA)
  • Fats And Perfumes (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

Demi-masque respiratoire filtrant comportant un élément masque (1) avec une partie filtre intérieure (2) en plastique et microfibres de verre et une partie extérieure de support (3) en un tissu de fibres synthétiques à grandes mailles de configuration semblable. Les deux couches sont reliées l'une à l'autre par soudage ou par collage, formant ainsi une bordure d'étanchéité (4). Elles sont en outre reliées par d'autres points de soudage ou de collage (5) au fond de l'élément masque. Une pince (6) sur le nez assure l'étanchéité par pression autour du nez. Un ruban serre-tête (8) est fixé à l'élément masque par des boucles (7).Respiratory filtering half-mask comprising a mask element (1) with an internal filter part (2) made of plastic and glass microfibers and an external support part (3) made of a fabric of synthetic fibers with large meshes of similar configuration. The two layers are connected to each other by welding or gluing, thus forming a sealing border (4). They are also connected by other welding or bonding points (5) to the bottom of the mask element. A clamp (6) on the nose seals by pressure around the nose. A headband tape (8) is attached to the mask element by loops (7).

Description

Filtrierende Atemhalbmaske Filtering respiratory half mask
Die Erfindung betrifft eine "Filtrierende Atemhalbmaske", entsprechend dem Oberbegriff des Anspruchs 1.The invention relates to a "filtering respiratory half mask", according to the preamble of claim 1.
"Filtrierende Atemhalbmasken" erfüllen ihre Schutzauf gabe in der gewerblichen Verwendung in der Verhinderung des Eindringens von schädlichen Stoffen in die Atemorgane des Trägers und in der medizinischen Verwendung umgekehrt des Rindurchtretens von Keimen aus der Atemluft des medizinischen Personals zum Schaden des Patienten. Sie müssen wirtschaftlich bereitgestellt werden. Dies setzt eine einfache Bauform und die Möglichkeit der maschinellen Herstellung voraus."Filtering respiratory half-masks" fulfill their protective task in commercial use in preventing the penetration of harmful substances into the respiratory organs of the wearer and in medical use, conversely, the passage of germs from the breathing air of medical personnel to the detriment of the patient. They have to be provided economically. This requires a simple design and the possibility of machine production.
Eine bekannte Einmal-Atemmaske, eine "Filtrierende Atemhalbmaske" im Sinne der vorliegenden Erfindung, weist einen becherförmigen Maskenkörper aus einem mehrschichtigen. Staub und Nebel filtrierenden Material auf. Der Maskenkörper ist derart geformt, daß sich ein enger Sitz über der Nase, den Wangen und dem Kinn des Benutzers ergibt. Die Kanten der Schichten des Filtermaterials sind miteinander abdichtend als ein Rand des Maskenkörpers ausgebildet. Kopfbänder sind an dem Rand befestigt, der dazu Vorsprünge aufweist. Über dem obersten Nasenteil des Maskenkörpers wird mittels eines Heißschmelzklebers ein winkelförmiges und vor- zugsweise aus Metall gefertigtes Nasenstück befestigt. Das Nasenstück wird nach dem Aufsetzen der Maske angedrückt und soll dieselbe über der Nase halten. Das Material des Maskenkörpers besteht aus drei Schichten: Die dem Gesicht zugekehrte innere Schicht besteht aus miteinander verbundenen Kunststoffasern. Die dem Gesicht abgewandte äußere Schicht besteht aus einem innigen Netzwerk von Kunststofffasern in einem Bindemittel. Dazwischen ist eine mittlere lockere Filterschicht aus lose miteinander vermischten Fasern eingeschlossen. Im Ursprungszustand bilden diese Schichten ein flaches, blattförmiges Material. Zur Herstellung des becherförmigen Maskenkörpers wird es in einer erhitzten, einen entsprechenden Hohlraum enthaltenden Form mittels eines Stempels in die Maskenform gepreßt. Dabei entsteht gleichzeitig der Rand, an dem nach dem Beschneiden die Kopfbänder befestigt werden. Abgesehen von dem komplizierten und teuren Aufbau des dreischichtigen Materials wird dieses jedoch durch den Tiefziehvorgang bei der Herstellung des Maskenkörpers in ungleichmäßiger und kaum überschaubarer Weise verändert. Dadurch sind die Fil-tereigenschaften des fertigen Stückes nicht gesichert und nicht über die filtrierende Maske einheitlich. Ein hoher Widerstand ergibt sich aus dem engen Anliegen der äußeren Schichten, wenn unter dem Druck des Ziehvorganges Fasern der Filterschicht vor und in die Öffnungen der äußeren Schichten gelangen. Durch den lockeren Aufbau der Filterschicht kann es in dieser zu Verschiebungen mit gefährlicher Lückenbildung kommen, insbesondere wenn der Maskenkörper bei vorübergehendem Absetzen oder Tragen in der Bereitschaft unbeabsichtigt ge knickt wird. (DE-OS 27 17 968)A known single-use breathing mask, a "filtering breathing half mask" in the sense of the present invention, has a cup-shaped mask body made of a multilayer. Dust and mist filtering material. The mask body is shaped in such a way that there is a tight fit over the nose, cheeks and chin of the user. The edges of the layers of the filter material are designed to seal with one another as an edge of the mask body. Headbands are attached to the edge, which has protrusions. A hot-melt adhesive is used to apply an angular and protruding shape over the uppermost nose part of the mask body. preferably made of metal nose piece attached. The nose piece is pressed on after the mask is put on and is intended to hold the mask over the nose. The material of the mask body consists of three layers: The inner layer facing the face consists of interconnected plastic fibers. The outer layer facing away from the face consists of an intimate network of plastic fibers in a binder. In between is a medium loose filter layer of loosely mixed fibers. In the original state, these layers form a flat, sheet-like material. To produce the cup-shaped mask body, it is pressed into the mask shape in a heated mold containing a corresponding cavity by means of a stamp. This creates the edge to which the headbands are attached after trimming. Apart from the complicated and expensive structure of the three-layer material, this is changed by the deep-drawing process in the manufacture of the mask body in an uneven and hardly manageable manner. As a result, the filter properties of the finished piece are not secured and are not uniform across the filtering mask. A high resistance results from the close contact of the outer layers when fibers of the filter layer get in front of and into the openings of the outer layers under the pressure of the drawing process. Due to the loose structure of the In this filter layer, there can be displacements with dangerous gaps, especially if the mask body is accidentally bent in readiness when temporarily placed or worn. (DE-OS 27 17 968)
Aufgabe der Erfindung ist eine "Filtrierende Atemhalbmaske", die einfach im Aufbau ist, auch bei längerer Benutzung formstabil bleibt, gegen äußere mechanische Einflüsse weitgehend unempfindlich ist und wirtschaftlich bereitgestellt werden kann.The object of the invention is a "filtering respiratory half mask" which is simple in construction, remains dimensionally stable even after prolonged use, is largely insensitive to external mechanical influences and can be provided economically.
Die Lösung der Aufgabe erfolgt gemäß dem Kennzeichen des Anspruchs 1. Eine vorteilhafte Weiterbildung ist im Anspruch 2 beschrieben.The problem is solved according to the characterizing part of claim 1. An advantageous further development is described in claim 2.
Der einfache Aufbau des Maskenkörpers aus nur zwei Schichten, deren Medien zur Verbindung, des Filterteils mit der äußeren Stützschicht nicht mehr ver formt werden müssen, garantiert vor allem eine bekannte Filterleistung mit einem definierten Atemwiderstand. Die empfindlichen Fasern des Filtermediums werden nicht mehr gegeneinander verschoben und dabei beansprucht. Die äußere Stützschicht aus dem grobmaschigen Kunststoffgewebe sichert eine notwendigeThe simple structure of the mask body from only two layers, the media for connecting the filter part with the outer support layer no longer have to be deformed, guarantees above all a known filter performance with a defined breathing resistance. The sensitive fibers of the filter medium are no longer shifted against each other and thereby stressed. The outer support layer made of the coarse-mesh plastic fabric ensures a necessary one
Formstabilität, die auch dann erhalten bleibt, wenn die Atemhalbmaske zwischendurch abgenommen und zusammengedrückt, z.B. in einer Tasche getragen wurde. Die Maskenform bleibt. auch bei Durchfeuchtung durch Atem und Schweiß erhalten. Eine hohe mechanische Abriebfestigkeit für das Filterteil ist durch das Material der äußeren Stützschicht selbstverständlich. Ein Ausführungsbeispiel der "Filtrierenden Atemhalb- maske" nach der Erfindung ist in der Zeichnung dargestellt und wird im folgenden beschrieben.Dimensional stability, which is retained even if the respiratory half mask has been removed and compressed in between, eg carried in a pocket. The mask shape remains. Preserved even through moisture and breath and sweat. A high mechanical abrasion resistance for the filter part is a matter of course due to the material of the outer support layer. An embodiment of the "filtering respiratory half mask" according to the invention is shown in the drawing and is described below.
Der Maskenkörper 1 weist die bekannte Form der normalen Halbmasken auf. Es ergibt sich ein bequemer dichter Sitz über der Nase, den Wangen und dem Kinn des Trägers. Im Innern ist ein ausreichender freier Raum, der die ungestörte Atmung sichert.The mask body 1 has the known shape of the normal half masks. The result is a comfortable, tight fit over the nose, cheeks and chin of the wearer. There is sufficient free space inside that ensures undisturbed breathing.
Der Maskenkörper 1, als der filtrierende Teil, besteht aus einem inneren homogenen, festen und widerstandsfähigen Filterteil 2 aus einer Mischung von Kunststoff- und Mikroglasfasern. Das Filterteil 2 -ist von einer äußeren Stützschicht 3 gleicher Konfiguration abgedeckt. Das Filterteil 2 und die Stützschicht 3 sind am Rand 4, dadurch gleichzeitig einen Abdichtungsrand bildend, durch Schweißung oder Klebung miteinander verbunden. Die vorgeformte Stützschicht 3 besteht aus einem grob- maschigen Gewebe aus Kunstfasern mit einer Maschenweite von etwa 1,0 mm.The mask body 1, as the filtering part, consists of an inner homogeneous, solid and resistant filter part 2 made of a mixture of plastic and micro glass fibers. The filter part 2 is covered by an outer support layer 3 of the same configuration. The filter part 2 and the support layer 3 are connected to one another at the edge 4, thereby simultaneously forming a sealing edge, by welding or gluing. The preformed support layer 3 consists of a coarse-mesh fabric made of synthetic fibers with a mesh size of approximately 1.0 mm.
Eine weitere Verbindung des Filterteils 2 mit der äußeren Stützschicht 3 erfolgt über Schweiß- oder Klebepunkte 5 in der Tiefe des Maskenkörpers 1.A further connection of the filter part 2 to the outer support layer 3 takes place via welding or adhesive spots 5 in the depth of the mask body 1.
Eine Nasenklemme 6 sichert durch Andrücken an die Nase auch die Abdichtung an dieser Stelle. Eine Kopf- bänderung 8 wird über Ösen 7 am Maskenkörper 1 gehalten. A nose clip 6 also secures the seal at this point by pressing on the nose. A head strap 8 is held on the mask body 1 by means of eyelets 7.

Claims

Patentansprüche Claims
1. Filtrierende Atemhalbmaske, bestehend aus einem mehrschichtigen Maskenkörper, dessen Schichten einen Abdichtungsrand bildend miteinander verbunden sind,sowie einer Kopfbänderung, dadurch ge kennzeichnet, daß der Maskenkörper (1) aus einem Filterteil (2), einem Medium aus einer Mischung von Kunststoff- und Mikroglasfasern, nach außen abgedeckt von einer vorgeformten Stützschicht (3) aus einem grobmaschigen Gewebe aus Kunstfasern be steht.1. Filtering respiratory half mask, consisting of a multi-layer mask body, the layers of which are connected to form a sealing edge, and a head strap, characterized in that the mask body (1) consists of a filter part (2), a medium made from a mixture of plastic and Micro glass fibers, covered on the outside by a preformed support layer (3) made of a coarse-mesh fabric made of synthetic fibers.
2. Filtrierende Atemhalbmaske nach Anspruch 1, dadurch gekennzeichnet, daß das Filterteil (2) und die äußere Stützschicht (3) durch ein oder mehrere Schweiß- oder Klebepunkte (5) in der Tiefe des Maskenkörpers (1) miteinander verbunden sind. 2. Filtering respiratory half mask according to claim 1, characterized in that the filter part (2) and the outer support layer (3) by one or more welding or adhesive spots (5) in the depth of the mask body (1) are interconnected.
EP83900620A 1982-02-09 1983-02-05 Filtering respiratory half-mask Ceased EP0099915A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3204322 1982-02-09
DE19823204322 DE3204322A1 (en) 1982-02-09 1982-02-09 FILTERING BREATH HALF MASK

Publications (1)

Publication Number Publication Date
EP0099915A1 true EP0099915A1 (en) 1984-02-08

Family

ID=6155118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83900620A Ceased EP0099915A1 (en) 1982-02-09 1983-02-05 Filtering respiratory half-mask

Country Status (6)

Country Link
EP (1) EP0099915A1 (en)
DE (1) DE3204322A1 (en)
DK (1) DK461083D0 (en)
FI (1) FI833173A0 (en)
NO (1) NO833119L (en)
WO (1) WO1983002726A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266456A1 (en) * 1986-11-06 1988-05-11 Moldex-Metric AG & Co.KG Respiratory face mask
US7677248B2 (en) 2002-06-05 2010-03-16 Louis M. Gerson Co., Inc. Stiffened filter mask
EP1509099A1 (en) * 2002-06-05 2005-03-02 Louis M. Gerson Co., Inc. Face mask and method of manufacturing the same
CN104839910A (en) * 2015-05-21 2015-08-19 马振原 Single-point welding 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
DE102020134616B4 (en) 2020-12-22 2023-08-03 HMT Hygiene- Medizin- & Krankenhaus-Technik GmbH protective mask

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8302726A1 *

Also Published As

Publication number Publication date
FI833173A (en) 1983-09-06
WO1983002726A1 (en) 1983-08-18
DK461083A (en) 1983-10-06
FI833173A0 (en) 1983-09-06
NO833119L (en) 1983-08-30
DE3204322A1 (en) 1983-08-11
DK461083D0 (en) 1983-10-06

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Inventor name: WALTHER, HANS-JOACHIM

Inventor name: HECKMANN, JOHANNES

Inventor name: VAN DER SMISSEN, CARL-ERNST

Inventor name: SCHLOBOHM, JOACHIM