EP0463383B1 - Atemschutzmaske mit leicht wechselbarem Atemfilter - Google Patents

Atemschutzmaske mit leicht wechselbarem Atemfilter Download PDF

Info

Publication number
EP0463383B1
EP0463383B1 EP91108531A EP91108531A EP0463383B1 EP 0463383 B1 EP0463383 B1 EP 0463383B1 EP 91108531 A EP91108531 A EP 91108531A EP 91108531 A EP91108531 A EP 91108531A EP 0463383 B1 EP0463383 B1 EP 0463383B1
Authority
EP
European Patent Office
Prior art keywords
breathing
filter
sleeve
mask
breathing 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.)
Expired - Lifetime
Application number
EP91108531A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0463383A2 (de
EP0463383A3 (en
Inventor
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 EP0463383A2 publication Critical patent/EP0463383A2/de
Publication of EP0463383A3 publication Critical patent/EP0463383A3/de
Application granted granted Critical
Publication of EP0463383B1 publication Critical patent/EP0463383B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A62B18/02—Masks
    • A62B18/025—Halfmasks

Definitions

  • the invention relates to a breathing mask with a breathing filter on a breath connection and a bellows sealing the interior of the mask from the environment, which surrounds the breathing filter at its end facing the interior of the mask in the manner of a rigid sleeve.
  • an escape filter device with a breathing filter at the breathing connection has become known, in which the breathing filter is connected to a mask body via a bellows.
  • the bellows seals the interior of the mask from the surroundings and encompasses the breathing filter at the filter outlet in the manner of a rigid sleeve. Since the cuff has to perform the holding and sealing function at the same time, it is designed as a clamp placed around the bellows.
  • the breathing filter is displaceably arranged in the mask body via the bellows.
  • a guide ring is attached to the passage opening of the respiratory filter on the mask body, the guide ring being dimensioned in such a way that the respiratory filter can be easily pushed through.
  • the bellows follows the axial displacement of the breathing filter. The stroke is limited by the abutment of the rigid sleeve on the guide ring.
  • a breathing mask which is made of resilient plastic and has a bellows-shaped attachment in the area of the breathing connection, into which a breathing filter is inserted.
  • the respiratory filter is fixed at the filter inlet by an encircling collar and at the filter outlet by a stop.
  • a disadvantage of the known arrangement is that the breathing filter can be removed from the bellows-shaped attachment only with difficulty, since no dimensionally stable, cylindrical receptacle is provided at the filter outlet, and the bellows-shaped attachment has to be turned over the entire length of the filter when the breathing filter is removed. In addition, there is no possibility of fixing an inverted section of the bellows-shaped attachment.
  • the invention is therefore based on the object of simplifying the replacement of the breathing filter.
  • the object is achieved in that the rigid cuff is continued to an elastic sleeve almost completely encompassing the respiratory filter, the respiratory filter being insertable or removable from the cuff when the sleeve is retracted and fixed in the retracted position.
  • the advantage of the invention consists essentially in the fact that a rigid, dimensionally stable sleeve is provided for holding the breathing filter and the fixation and sealing function is taken over by the sleeve adjoining the sleeve.
  • the cuff can therefore fit the breathing filter in a clearance fit.
  • the cylindrical part of the cuff encompasses the outer surface of the breathing filter and extends to about half the height of the breathing filter and is then continued in an elastic sleeve.
  • the sleeve can be made of natural rubber, neoprene or silicone, for example.
  • the sleeve fits firmly around the cuff and is fixed in this position.
  • the breathing filter can now be removed.
  • the sleeve is folded back and fits gas-tight around the outer surface of the respiratory filter.
  • the breathing mask is now ready for use again. If the cuff is designed as a clearance fit with respect to the breathing filter, rubber-elastic knobs can be present within the cuff, distributed over the circumference, which fix the breathing filter in the cuff. The knobs prevent the breathing filter from falling out during disassembly.
  • the sleeve consists of individual ones strip-shaped sections that run parallel to the breathing filter and are combined in a ring at the filter inlet of the breathing filter. Reinforcements can be inserted into individual sections for stiffening.
  • the sleeve can, starting from the sleeve, first be cylindrical, then run in strip-shaped sections and be cylindrical again at the filter inlet. The cylindrical section following the cuff serves as a seal for the breathing filter.
  • the strip-shaped sections have the effect that the folding back of the sleeve is facilitated.
  • the sleeve is designed as a rubber-elastic strip which surrounds the filter inlet of the breathing filter in a U-shape and the legs of which are attached to the cuff.
  • the breathing filter is pressed into the rigid cuff and fixed by the U-shaped strip.
  • the strip is wiped off at the side and the breathing filter can be removed.
  • the sleeve with a collar at the level of the filter inlet, which surrounds the respiratory filter and presses the respiratory filter against the cuff, so as to enable a firm hold. If the sleeve consists of individual strip-shaped sections, the sections can be fixed individually with the collar on the breathing filter. The length of the sections is such that they are first stretched during assembly and then attached to the breathing filter under the inherent elastic tension.
  • the collar As an assembly aid, it is advantageous to equip the collar with individual grip tabs on the front of the filter inlet. By pulling on the The sleeve can be folded back particularly easily using grip tabs.
  • the grip tabs can be provided with perforations or washboard-like stiffeners in order to offer a good contact surface and to prevent slipping.
  • Inexpensive manufacture of the bellows and sleeve is achieved if they are made in one piece by the sleeve being a continuation of the bellows and the rigid sleeve being created by inserting a rigid band into the cylindrical extension of the bellows.
  • This tape can be vulcanized into the outer surface or rest on the inside.
  • a rigid band lying against the inside of the cuff is particularly easy to install and has particularly good sliding properties for the egg-clogging breathing filter.
  • the breathing filter together with the sleeve can be inserted into the mask body along a guide ring in the mask connection, the length of the drawer being determined by the bellows length.
  • the cuff prefferably provides a stop at the filter outlet, against which the breathing filter can be pushed during insertion. It is particularly cost-effective to make the bellows, sleeve and stop in one piece.
  • the stop can be designed as a circumferential, bead-shaped lip.
  • the sliding band is made of Teflon and is pushed over the sleeve before the breathing filter is inserted.
  • Fig. 1 shows a breathing mask (1) with a breathing filter (2) on the breathing connection (3) which is attached to a bellows (4).
  • the bellows (4) is part of the mask body (5) and seals the mask interior (20) from the surroundings.
  • a rigid band (6) is inserted between the bellows (4) and the breathing filter (2), which together with the bellows (4) is a rigid sleeve (7) for holding the breathing filter (2).
  • the length of the cuff (7) extends over the length of the band (6).
  • the cuff (7) is continued in an elastic sleeve (8) which is gas-tight Breathing filter (2) comprises.
  • the breathing filter (2) abuts a collar (10) at the filter inlet (9) and a stop (12) at the filter outlet (11).
  • Stop (12), sleeve (7), sleeve (8) and collar (10) are made in one piece with the bellows (4).
  • a guide ring (13) is provided in the breathing connection (3) between the sleeve (8) or sleeve (7) and the mask body (5), through which the breathing filter (2) together with the sleeve (8) can be inserted into the mask interior (20) is.
  • the length of the drawer is determined by the bellows length.
  • the sealing lip (14) presses on all sides on the outside of the cuff (7) and fixes the breathing filter (2) in the position of use. Pushing out the breathing filter (2) into the position of use is made easier when a sliding band (15) is pushed onto the sleeve (8) and the sleeve (7). Particularly good sliding properties are provided if the sliding sleeve (15) is made from Teflon.
  • a protective hood (16) and a strap (17) are fastened to the breathing connection (3) with a clamp (16) which is braced against the guide ring (13). The protective hood can be pulled over the head of a device carrier, not shown.
  • Fig. 2 shows the breathing mask (1) in a transport container (18) with the breathing filter (2) inserted into the mask interior (20).
  • the sealing lip (14) lies over the collar (10) and thus braces the breathing filter (2) in the interior of the mask (20).
  • the maximum insertion length is limited by the length of the bellows (4).
  • Fig. 3 shows a front view of the breathing filter (2) with folded sleeve (8), a collar (10) surrounding the filter inlet (9) and grip tabs (19), which are arranged at an angle of 90 degrees and a continuation of the collar (10 ) are.
  • the sleeve (8) is first pushed back up to the cuff (7) and placed on the outside of the cuff (7).
  • the sleeve (8) is gripped by the grip tab (19) and placed over the sleeve (7).
  • the breathing filter (2) can now be removed.
  • the new breathing filter is inserted into the cuff (7) and bumps against the stop (12). Then the sleeve (8) is folded back.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP91108531A 1990-06-25 1991-05-25 Atemschutzmaske mit leicht wechselbarem Atemfilter Expired - Lifetime EP0463383B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4020127A DE4020127C1 (enrdf_load_stackoverflow) 1990-06-25 1990-06-25
DE4020127 1990-06-25

Publications (3)

Publication Number Publication Date
EP0463383A2 EP0463383A2 (de) 1992-01-02
EP0463383A3 EP0463383A3 (en) 1992-12-02
EP0463383B1 true EP0463383B1 (de) 1995-11-02

Family

ID=6408994

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91108531A Expired - Lifetime EP0463383B1 (de) 1990-06-25 1991-05-25 Atemschutzmaske mit leicht wechselbarem Atemfilter

Country Status (4)

Country Link
US (1) US5148803A (enrdf_load_stackoverflow)
EP (1) EP0463383B1 (enrdf_load_stackoverflow)
JP (1) JPH0716524B2 (enrdf_load_stackoverflow)
DE (2) DE4020127C1 (enrdf_load_stackoverflow)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443299C1 (de) * 1994-12-06 1995-12-14 Draegerwerk Ag Atemschutzmaske mit Atemfilter
US5579761A (en) * 1995-01-20 1996-12-03 Minnesota Mining And Manufacturing Company Respirator having snap-fit filter cartridge
US6277178B1 (en) * 1995-01-20 2001-08-21 3M Innovative Properties Company Respirator and filter cartridge
US6216693B1 (en) 1995-01-20 2001-04-17 3M Innovative Properties Company Respirator having a compressible press fir filter element
DE19534985C2 (de) * 1995-09-21 1998-02-12 Auergesellschaft Gmbh Atemschutzmaske
US6298849B1 (en) * 1999-10-14 2001-10-09 Moldex-Metric, Inc. Respirator mask with snap in filter cartridge
US6553989B1 (en) 2001-07-20 2003-04-29 James M. Richardson Self-contained breathing apparatus with emergency filtration device
WO2003013657A1 (en) * 2001-08-10 2003-02-20 North Safety Products Inc. Respirator
US6701925B1 (en) 2002-04-11 2004-03-09 Todd A. Resnick Protective hood respirator
US6979361B2 (en) 2002-07-17 2005-12-27 Gueorgui Milev Mihayiov End of service life indicator for fluid filter
EP2522383B1 (en) 2003-05-02 2017-08-30 ResMed Ltd. A mask system
FR2854808B1 (fr) * 2003-05-16 2005-11-11 Robert Schegerin Filtre interne amovible de masque a mise en place rapide pour pilotes d'avions
US9393448B2 (en) 2011-11-17 2016-07-19 3M Innovative Properties Company Side plug-in filter cartridge
US9814913B2 (en) * 2013-11-15 2017-11-14 3M Innovative Properties Company Respirator with floating elastomeric sleeve
USD744088S1 (en) 2014-05-22 2015-11-24 3M Innovative Properties Company Respirator mask having a circular button
USD757928S1 (en) 2014-05-22 2016-05-31 3M Innovative Properties Company Respirator cartridge body
USD746438S1 (en) 2014-05-22 2015-12-29 3M Innovative Properties Company Respirator filter cover
USD757247S1 (en) 2014-05-22 2016-05-24 3M Innovative Properties Company Respirator cartridge
USD745962S1 (en) 2014-05-22 2015-12-22 3M Innovative Properties Company Respirator filter retainer
USD754844S1 (en) 2014-05-22 2016-04-26 3M Innovative Properties Company Respirator mask
USD746437S1 (en) 2014-05-22 2015-12-29 3M Innovative Properties Company Respirator mask having a communication grille
USD787660S1 (en) 2014-05-22 2017-05-23 3M Innovative Properties Company Respirator mask having a face seal flexing region
USD759807S1 (en) 2014-05-22 2016-06-21 3M Innovative Properties Company Respirator mask exhalation port
USD763437S1 (en) 2015-02-27 2016-08-09 3M Innovative Properties Company Respirator cartridge body
USD742504S1 (en) 2015-02-27 2015-11-03 3M Innovative Properties Company Respirator mask
USD762845S1 (en) 2015-02-27 2016-08-02 3M Innovative Properties Company Respirator cartridge
USD795416S1 (en) 2015-02-27 2017-08-22 3M Innovative Properties Company Respirator mask
USD743536S1 (en) 2015-02-27 2015-11-17 3M Innovative Properties Company Respirator mask having a circular button
USD795415S1 (en) 2015-02-27 2017-08-22 3M Innovative Properties Company Respirator cartridge having an engagement latch
USD747795S1 (en) 2015-02-27 2016-01-19 3M Innovative Properties Company Respirator mask body
USD767116S1 (en) 2015-02-27 2016-09-20 3M Innovative Properties Company Respirator mask having an exhalation port
USD741475S1 (en) 2015-02-27 2015-10-20 3M Innovation Properties Company Respirator mask having a communication grille
USD827810S1 (en) 2016-03-28 2018-09-04 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators
EP3436163B1 (en) 2016-03-28 2020-08-19 3M Innovative Properties Company Multiple chamber respirator sealing devices and methods
WO2017172358A1 (en) 2016-03-28 2017-10-05 3M Innovative Properties Company Respirator fit check sealing devices and methods
USD842982S1 (en) 2016-03-28 2019-03-12 3M Innovative Properties Company Hardhat suspension adapter for half facepiece respirators
USD816209S1 (en) 2016-03-28 2018-04-24 3M Innovative Properties Company Respirator inlet port connection seal
CN108883321A (zh) 2016-03-28 2018-11-23 3M创新有限公司 头戴件悬架附接元件
US11058840B2 (en) * 2019-01-17 2021-07-13 Makrite Industries Inc. Retractable respiratory mask

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6752895U (de) * 1968-09-17 1969-03-20 Draegerwerk Ag Atemschutzmaske
DE2639545C3 (de) * 1976-09-02 1979-04-05 Draegerwerk Ag, 2400 Luebeck Fluchtfiltergerät mit Schutzhaube
DE3206483C2 (de) * 1982-02-23 1984-10-18 Drägerwerk AG, 2400 Lübeck Filteratemschutzgerät mit einem Behälter
DE3206484C2 (de) * 1982-02-23 1984-03-15 Drägerwerk AG, 2400 Lübeck Atemschutzgerät mit Schutzhaube
DE3236028C2 (de) * 1982-09-29 1984-07-19 Drägerwerk AG, 2400 Lübeck Fluchtfiltergerät mit einem Atemfilter in einer Halbmaske

Also Published As

Publication number Publication date
JPH0716524B2 (ja) 1995-03-01
EP0463383A2 (de) 1992-01-02
EP0463383A3 (en) 1992-12-02
JPH04231975A (ja) 1992-08-20
DE4020127C1 (enrdf_load_stackoverflow) 1991-10-24
DE59106802D1 (de) 1995-12-07
US5148803A (en) 1992-09-22

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