DE1298420B - Production of respiratory protection half masks from flat dust filter material - Google Patents

Production of respiratory protection half masks from flat dust filter material

Info

Publication number
DE1298420B
DE1298420B DEV32230A DEV0032230A DE1298420B DE 1298420 B DE1298420 B DE 1298420B DE V32230 A DEV32230 A DE V32230A DE V0032230 A DEV0032230 A DE V0032230A DE 1298420 B DE1298420 B DE 1298420B
Authority
DE
Germany
Prior art keywords
mask body
dust filter
mask
filter material
filter
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
DEV32230A
Other languages
German (de)
Inventor
Bartsch Guenter
Dauer Wolfgang
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.)
Medizintechnik Leipzig VEB
Original Assignee
Medizintechnik Leipzig VEB
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 Medizintechnik Leipzig VEB filed Critical Medizintechnik Leipzig VEB
Priority to DEV32230A priority Critical patent/DE1298420B/en
Publication of DE1298420B publication Critical patent/DE1298420B/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1138Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • A41D13/1146Protective 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)

Description

Patenfänsprüch:Sponsorship:

Anwendung des Formgi'eßens zum Herstellen des aus flächenförmigen Staubfiltermaterial bestehenden Maskenkörpers von Atemschutzhalbmasken. Application of the molding process for the manufacture of the sheet-like dust filter material Mask body of respiratory half masks.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Die Erfindung betrifft die Herstellung von Atemschutzhalbmasken, deren Maskenkörper aus flächenförmigem Staubfiltermaterial besteht.The invention relates to the production of respiratory half masks, the mask body of which is made of sheet-like Consists of dust filter material. Es ist ein halbmaskenförmig ausgebildetes Staubfilter bekannt, das einen für sich abnehmbaren, an dem Staubfilter auf dessen dem Gesicht abgewendeten Seite anliegenden Halterahmen aufweist, an dem Kopfbänder angeschlossen sind. Das Staubfilter besteht aus einem flächenförmigen Staubfiltermaterial und ist mit einem nach außen umgebogenen Rand ίο versehen, in den der Halterahmen eingelegt ist. Das Staubfilter kann, vorzugsweise in der Gegend des Munds, zur Vergrößerung seiner Oberfläche im Querschnitt zickzackförmig gefaltet sein.It is a half-mask-shaped dust filter known, the one detachable for itself, turned away from the dust filter on its face Has side adjacent holding frame, are connected to the headbands. The dust filter is made made of a flat dust filter material and has an outwardly bent edge ίο provided in which the holding frame is inserted. The dust filter can, preferably in the area of the Mouth, be folded in a zigzag shape to increase its surface area in cross-section. Zum Herstellen eines solchen Maskenkörpers wird das faserige Staubfiltermaterial in eine entsprechende Form eingebracht und unter Einwirkung von Wärme und Druck zu einem zusammenhängenden Körper verformt. Die hierbei hervorgerufene ungleichmäßige Struktur des Maskenkörpers vermindert die Ab-Scheideleistung des Filters. Durch den verhältnismäßig losen Zusammenhalt des Filtermaterials besteht außerdem die Gefahr, daß das Filter durch äußeren mechanischen Einfluß zerstört wird. Beim Herstellen eines Filters mit zickzackförmigem Filterquerschnitt werden ferner durch das Einstülpen die Fasern an den Faltstellen auseinandergerissen oder gebrochen, wodurch sich gleichfalls die Abscheideleistung des Filters verringert.To produce such a mask body, the fibrous dust filter material is converted into a corresponding Form introduced and under the action of heat and pressure to form a coherent body deformed. The uneven structure of the mask body caused by this reduces the separation efficiency of the filter. There is due to the relatively loose cohesion of the filter material there is also the risk that the filter will be destroyed by external mechanical influences. At the Manufacture of a filter with a zigzag filter cross-section are also achieved by the invagination Fibers torn apart or broken at the folds, which also affects the separation efficiency of the filter is reduced. Es ist ferner bekannt, luftdichte Maskenkörper im Formguß aus luftdurchlässigem Kunststoff herzustellen. It is also known to produce airtight mask body by molding from air-permeable plastic. Der Erfindung liegt die Aufgabe zugrunde, die Atemschutzhalbmaske der zuerst beschriebenen Art so zu verbessern, daß der Maskenkörper bei erhöhter Abscheideleistung trotzdem eine größere Steifigkeit aufweist. Erfindungsgemäß wird die Aufgabe durch Anwendung des Formgießens zum Herstellen des aus flächenförmigem Staubfiltermaterial bestehenden Maskenkörpers gelöst. Ein Vorteil des Formgusses ist es, daß dem Maskenkörper jedmögliche Form gegeben werden kann. Der Vorteil eines solchen durch Formgießen hergestellten Maskenkörpers besteht darin, daß das Gefüge des Filtermaterials seine homogene Struktur beibehält und dadurch eine Verbesserung der Abscheideleistung erzielt wird. Ein weiterer Vorteil besteht in einer solchen Steifigkeit des Maskenkörpers, daß keine zusätzliche Halte- und Schutzvorrichtungen erforderlich sind.The invention is based on the object of the respiratory protection half mask of the type described first to be improved in such a way that the mask body still has greater rigidity with increased separation efficiency having. According to the invention, the object is achieved by using die casting to produce the solved from sheet-like dust filter material existing mask body. One advantage of molding is it means that the mask body can be given any shape. The advantage of such through The mask body produced by molding consists in the fact that the structure of the filter material is its Maintains a homogeneous structure and thereby an improvement in the separation efficiency is achieved. A Another advantage is such a rigidity of the mask body that no additional holding and Protective devices are required. In der Zeichnung sind zwei Ausführungsbeispiele der Erfindung dargestellt, und zwar zeigen die F i g. 1 und 2 zwei in ihrer Gestalt unterschiedliche Atemschutzhalbmasken. In the drawing, two exemplary embodiments of the invention are shown, namely, FIGS. 1 and 2 two respiratory half masks with different shapes. Die Atemschutzhalbmaske nach F i g. 1 besteht aus dem Maskenkörper 1, dessen in der Gegend des Munds angeordnetes Vorderteil 2 sternförmig ausgebildet und mit bis zum Dichtrand 3 verlaufenden Falten 4 versehen ist. Der Dichtrand ist verfestigt, vorzugsweise mit einem aushärtbaren Bindemittel imprägniert. An ihm ist die Bänderung 5 befestigt.The half mask according to FIG. 1 consists of the mask body 1, whose in the area of the Mouth arranged front part 2 is star-shaped and extends up to the sealing edge 3 Folds 4 is provided. The sealing edge is solidified, preferably with a hardenable binder impregnated. The strap 5 is attached to it. Der Maskenkörper 1 der Atemschutzhalbmaske nach F i g. 2 hat zur Vergrößerung seiner Oberfläche eine andere Querschnittsform. Er ist ebenfalls mit einer Bänderung 5 versehen. "The mask body 1 of the half mask according to FIG. 2 has to increase its surface area a different cross-sectional shape. It is also provided with a band 5. " Die Atemschutzhalbmaske -kann mit einem Ausatemventil, vorzugsweise im sternförmig ausgebildeten Vorderteil, versehen sein. .The half mask respirator can be equipped with an exhalation valve, be preferably provided in the star-shaped front part. .
DEV32230A 1966-10-29 1966-10-29 Production of respiratory protection half masks from flat dust filter material Pending DE1298420B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV32230A DE1298420B (en) 1966-10-29 1966-10-29 Production of respiratory protection half masks from flat dust filter material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV32230A DE1298420B (en) 1966-10-29 1966-10-29 Production of respiratory protection half masks from flat dust filter material

Publications (1)

Publication Number Publication Date
DE1298420B true DE1298420B (en) 1969-06-26

Family

ID=7587096

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV32230A Pending DE1298420B (en) 1966-10-29 1966-10-29 Production of respiratory protection half masks from flat dust filter material

Country Status (1)

Country Link
DE (1) DE1298420B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417575A (en) * 1980-07-03 1983-11-29 Racal Safety Limited Respirators
US4419994A (en) * 1980-07-03 1983-12-13 Racal Safety Limited Respirators

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB780710A (en) * 1953-04-02 1957-08-07 Nat Res Dev Improvements in or relating to respirators
GB937799A (en) * 1961-03-28 1963-09-25 Johnson & Johnson Masks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB780710A (en) * 1953-04-02 1957-08-07 Nat Res Dev Improvements in or relating to respirators
GB937799A (en) * 1961-03-28 1963-09-25 Johnson & Johnson Masks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417575A (en) * 1980-07-03 1983-11-29 Racal Safety Limited Respirators
US4419994A (en) * 1980-07-03 1983-12-13 Racal Safety Limited Respirators

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