EP0252281A1 - Breathing protection apparatus with signal processing unit - Google Patents

Breathing protection apparatus with signal processing unit Download PDF

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Publication number
EP0252281A1
EP0252281A1 EP87107931A EP87107931A EP0252281A1 EP 0252281 A1 EP0252281 A1 EP 0252281A1 EP 87107931 A EP87107931 A EP 87107931A EP 87107931 A EP87107931 A EP 87107931A EP 0252281 A1 EP0252281 A1 EP 0252281A1
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EP
European Patent Office
Prior art keywords
field
display
wearer
signal processing
processing unit
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.)
Granted
Application number
EP87107931A
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German (de)
French (fr)
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EP0252281B1 (en
Inventor
Hans-Joachim Ing. Walther
Hans Matthiessen
Alfred Lang
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.)
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Publication date
Application filed by Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP0252281A1 publication Critical patent/EP0252281A1/en
Application granted granted Critical
Publication of EP0252281B1 publication Critical patent/EP0252281B1/en
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
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices

Definitions

  • the invention relates to a respiratory protection device with a signal processing unit for the transmission and display of measurement data in the field of view of the device wearer.
  • These respiratory protection devices are not only used for the supply of breathing oxygen for pilots, but also, for example, in connection with the use of breathing apparatus for fire brigades, underground rescue teams or for maintenance and inspection work in an atmosphere enriched with pollutants.
  • the known protective device In connection with a protective helmet, the known protective device carries a signal processing unit which is arranged in the forehead region of the helmet wearer and whose display field is outside of his field of vision. To transmit the displayed data and information, it is necessary to project the display field of the known signal processing unit into the field of view of the wearer by means of complex deflection optics.
  • the known arrangement requires a complicated and complex deflection optics for visualization of the displayed data, which must be shock-proof in the helmet of the mask wearer in order to ensure vibration and distortion-free transmission of the data into the field of view of the mask wearer.
  • the field of view is significantly restricted by the imaging optics, with an optically specially designed subarea having to be provided in the viewing window of the mask, which is intended for deflecting the data intended for transmission, which are then superimposed on the usual observation of the surroundings by the viewing screen. This leads to disturbing interferences, especially with changing brightness differences. If there is no contrast, the information reflected is even invisible.
  • the known display unit can therefore only be used with a special viewing window that is suitable and suitable for displaying the data.
  • the present invention is therefore based on the object of improving a respiratory protection device with a signal processing unit of the type mentioned in such a way that the display unit can be used universally and no optical elements restricting the field of vision are necessary. It should be able to be observed directly by the wearer.
  • the object is achieved in that the display unit is arranged laterally next to the nose area with its display field facing the device carrier.
  • the image of the surroundings remains unaffected by the narrowing or superimposition of reflected additional images.
  • the amount of data to be displayed is increased further, e.g. By recording the device's own physiological parameters, information about the breathing gas supply, ambient temperature or air humidity as well as pollutant concentrations in the atmosphere and corresponding warning signals, this does not restrict the field of vision.
  • the amount of data can be output sequentially without impairing the recognizability of the objects to be observed or reducing the attention of the wearer.
  • the display field of the display unit can advantageously be covered by a magnifying lens. This also makes smaller display fields easily recognizable.
  • the display unit can furthermore be expedient to provide the display unit with an optic which depicts the display field at infinity. This can be placed directly on the display unit in a simple manner and without complex deflection optics and enables the protective mask wearer to read the displayed data without fatigue even at short distances between his eye and the field of vision.
  • the single figure shows the view of a respiratory protection device designed as a protective mask, which has a mask body (1) with a viewing window (2), an inner half mask (3) as well as a strap (4) and fastening tabs (5).
  • the half mask (3) is connected to the mask body (1) via an extension piece (6), which opens into an outlet opening for an exhalation valve (7) and an inhalation valve (8) outside the mask body (1).
  • the signal processing unit (9) consists of a processing part (10) in which the measurement signals supplied via the signal bus (11) are processed in series or in parallel and made visible in the display field (13) via a display unit (12).
  • the signal processing unit (9) is housed next to the nose area of the half mask (3) on the lower attachment (6) between the half mask (3) and mask body (1), its display field (13) pointing towards the mask interior and directed towards the eyes of the mask wearer (not shown) is.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

A breathing protection apparatus with a signal processing unit for the transmission and display of measurement data within the field of view of the wearer of the apparatus is to be improved so that the display unit is universally usable and in this case no optical elements restricting the field of view are required. It is to be capable of being directly observed by the wearer. Such a breathing protection apparatus is characterised in that the display unit (12) is disposed laterally beside the nose region with its display field (13) pointing to the wearer of the apparatus. <IMAGE>

Description

Die Erfindung betrifft eine Atemschutzeinrichtung mit einer Signalverarbeitungseinheit zur Übertragung und Anzeige von Meßdaten in den Sichtbereich des Geräte­trägers.The invention relates to a respiratory protection device with a signal processing unit for the transmission and display of measurement data in the field of view of the device wearer.

Eine derartige Einrichtung ist aus der DE-OS 26 18 267 bekanntgeworden.Such a device has become known from DE-OS 26 18 267.

Diese Atemschutzeinrichtungen werden nicht nur bei der Versorgung von Atemsauerstoff für Piloten, sondern auch beispielsweise im Zusammenhang mit dem Einsatz von Atemschutzgeräten bei Feuerwehren, Rettungsmann­schaften unter Tage oder auch bei Wartungs- und In­spektionsarbeiten in einer mit Schadstoffen ange­reicherten Atmosphären eingesetzt.These respiratory protection devices are not only used for the supply of breathing oxygen for pilots, but also, for example, in connection with the use of breathing apparatus for fire brigades, underground rescue teams or for maintenance and inspection work in an atmosphere enriched with pollutants.

Die bekannte Schutzeinrichtung trägt in Verbindung mit einem Schutzhelm eine Signalverarbeitungseinheit, welche im Stirnbereich des Helmträgers angeordnet ist und deren Anzeigefeld sich außerhalb seines Sehfeldes befindet. Zur Übertragung der angezeigten Daten und Informationen ist es notwendig, das Anzeigefeld der bekannten Signalverarbeitungseinheit über eine auf­wendige Umlenkungsoptik in das Sehfeld des Trägers zu projizieren.In connection with a protective helmet, the known protective device carries a signal processing unit which is arranged in the forehead region of the helmet wearer and whose display field is outside of his field of vision. To transmit the displayed data and information, it is necessary to project the display field of the known signal processing unit into the field of view of the wearer by means of complex deflection optics.

Die bekannte Anordnung benötigt zur Sichtbarmachung der angezeigten Daten eine komplizierte und auf­wendige Umlenkungsoptik, welche stoßfest im Helm des Maskenträgers aufgenommen sein muß, um eine schwingungs­und verzerrungsfreie Übertragung der Daten in das Sehfeld des Maskenträgers zu gewährleisten. Darüber­hinaus wird der Sichtbereich durch die Abbildungs­optik wesentlich eingeschränkt, wobei im Sichtfenster der Maske ein optisch speziell ausgebildeter Teil­bereich vorgesehen sein muß, der zur Umlenkung der zur Übertragung vorgesehenen Daten bestimmt ist, die dann der üblichen Beobachtung der Umgebung durch den Sichtschirm überlagert werden. Dies führt ins­besondere bei wechselnden Helligkeitsunterschieden zu störenden Interferenzen. Bei fehlendem Kontrast wird sogar die eingespiegelte Information unsichtbar. Die be­kannte Anzeigeeinheit ist somit nur mit einem besonderen, für die Abbildung der Daten geeigneten und speziell ausgebildeten Sichtfenster verwendbar.The known arrangement requires a complicated and complex deflection optics for visualization of the displayed data, which must be shock-proof in the helmet of the mask wearer in order to ensure vibration and distortion-free transmission of the data into the field of view of the mask wearer. In addition, the field of view is significantly restricted by the imaging optics, with an optically specially designed subarea having to be provided in the viewing window of the mask, which is intended for deflecting the data intended for transmission, which are then superimposed on the usual observation of the surroundings by the viewing screen. This leads to disturbing interferences, especially with changing brightness differences. If there is no contrast, the information reflected is even invisible. The known display unit can therefore only be used with a special viewing window that is suitable and suitable for displaying the data.

Der vorliegenden Erfindung liegt somit die Aufgabe zu­grunde, eine Atemschutzeinrichtung mit einer Signal­verarbeitungseinheit der genannten Art so zu ver­bessern, daß die Anzeigeeinheit universell verwendbar ist und dabei keine, den Sichtbereich einschränkende optische Elemente notwendig sind. Sie soll vom Träger direkt beobachtet werden können.The present invention is therefore based on the object of improving a respiratory protection device with a signal processing unit of the type mentioned in such a way that the display unit can be used universally and no optical elements restricting the field of vision are necessary. It should be able to be observed directly by the wearer.

Die Aufgabe wird dadurch gelöst, daß die Anzeigeeinheit seitlich neben dem Nasenbereich mit ihrem Anzeigefeld zu dem Geräteträger weisend angeordnet ist.The object is achieved in that the display unit is arranged laterally next to the nose area with its display field facing the device carrier.

Mit dieser Anordnung der Anzeigeeinheit an einem sonst nicht genutzten Bereich des Sehfeldes bleibt das Bild der Umgebung unbeeinträchtigt durch Einengung oder Überlagerung von eingespiegelten Zusatzbildern. Auch bei weiterer Erhöhung der anzuzeigenden Datenfülle, wie z.B. durch Erfassung der eigenen physiologischen Größen des Geräteträgers, Informationen über den Atemgasvorrat, Umgebungstemperatur oder Luftfeuchte sowie Schadstoff­konzentrationen in der Atmosphäre und entsprechender Warnsignale, führt dies nicht zu einer Einschränkung des Sichtbereiches. Die Datenmenge kann sequentiell ab­gegeben werden, ohne daß dabei die Erkennbarkeit der zu beobachtenden Gegenstände beeinträchtigt oder die Aufmerksamkeit des Geräteträgers geschmälert würde.With this arrangement of the display unit on an otherwise unused area of the field of view, the image of the surroundings remains unaffected by the narrowing or superimposition of reflected additional images. Even if the amount of data to be displayed is increased further, e.g. By recording the device's own physiological parameters, information about the breathing gas supply, ambient temperature or air humidity as well as pollutant concentrations in the atmosphere and corresponding warning signals, this does not restrict the field of vision. The amount of data can be output sequentially without impairing the recognizability of the objects to be observed or reducing the attention of the wearer.

In weiterer Ausgestaltung der Erfindung kann das An­zeigefeld der Anzeigeeinheit vorteilhafterweise durch eine Vergrößerungsoptik abgedeckt sein. Dadurch werden auch kleinere Anzeigefelder leicht erkennbar gemacht.In a further embodiment of the invention, the display field of the display unit can advantageously be covered by a magnifying lens. This also makes smaller display fields easily recognizable.

Es kann weiterhin zweckmäßig sein, die Anzeige­einheit mit einer das Anzeigefeld ins Un­endliche abbildenden Optik zu versehen. Diese kann in einfacher Weise und ohne aufwendige Umlenkoptik direkt auf die Anzeigeeinheit aufgesetzt sein und ermöglicht dem Schutzmaskenträger auch bei kurzen Entfernungen zwischen seinem Auge und dem Sichtfeld eine ermüdungsfreie Ablesung der angezeigten Daten.It can furthermore be expedient to provide the display unit with an optic which depicts the display field at infinity. This can be placed directly on the display unit in a simple manner and without complex deflection optics and enables the protective mask wearer to read the displayed data without fatigue even at short distances between his eye and the field of vision.

Ein Ausführungsbeispiel der Erfindung wird im folgenden näher erläutert und anhand der Zeichnung schematisch dargestellt.An embodiment of the invention is explained in more detail below and shown schematically with reference to the drawing.

Die einzige Figur zeigt die Ansicht einer als Schutz­maske ausgebildeten Atemschutzeinrichtung, welche einen Maskenkörper (1) mit einer Sichtscheibe (2), einer inneren Halbmaske (3) sowie einer Bänderung (4) und Befestigungslaschen (5) besitzt. Die Halbmaske (3) ist über ein Ansatzstück (6) mit dem Maskenkörper (1) verbunden, welches in eine Austrittsöffnung für ein Ausatemventil (7) und ein Einatemventil (8) außerhalb des Maskenkörpers (1) mündet.The single figure shows the view of a respiratory protection device designed as a protective mask, which has a mask body (1) with a viewing window (2), an inner half mask (3) as well as a strap (4) and fastening tabs (5). The half mask (3) is connected to the mask body (1) via an extension piece (6), which opens into an outlet opening for an exhalation valve (7) and an inhalation valve (8) outside the mask body (1).

Die Signalverarbeitungseinheit (9) besteht aus einem Verarbeitungsteil (10), in welchem die über die Signal­sammelleitung (11) gelieferten Meßsignale seriell oder parallel verarbeitet und über eine Anzeigeeinheit (12) in dem Anzeigefeld (13) sichtbar gemacht werden. Die Signalverarbeitungseinheit (9) ist neben dem Nasen­bereich der Halbmaske (3) am unteren Ansatzstück (6) zwischen Halbmaske (3) und Maskenkörper (1) unterge­bracht, wobei ihr Anzeigefeld (13) zum Maskeninnen­raum weist und auf die Augen des nicht darge­stellten Maskenträgers gerichtet ist.The signal processing unit (9) consists of a processing part (10) in which the measurement signals supplied via the signal bus (11) are processed in series or in parallel and made visible in the display field (13) via a display unit (12). The signal processing unit (9) is housed next to the nose area of the half mask (3) on the lower attachment (6) between the half mask (3) and mask body (1), its display field (13) pointing towards the mask interior and directed towards the eyes of the mask wearer (not shown) is.

Claims (3)

1. Atemschutzeinrichtung mit einer Signalverarbeitungs­einheit zur Übertragung und Anzeige von Meßdaten in den Sichtbereich des Geräteträgers, dadurch ge­kennzeichnet, daß die Anzeigeeinheit (12) seitlich neben dem Nasenbereich mit ihrem Anzeigefeld (13) zu dem Geräteträger weisend angeordnet ist.1. Respiratory protection device with a signal processing unit for the transmission and display of measurement data in the field of vision of the device wearer, characterized in that the display unit (12) is arranged laterally next to the nose area with its display field (13) facing the device wearer. 2. Atemschutzeinrichtung nach Anspruch 1, dadurch ge­kennzeichnet, daß das Anzeigefeld (13) durch eine Vergrößerungsoptik abgedeckt ist.2. Respiratory protection device according to claim 1, characterized in that the display field (13) is covered by a magnifying lens. 3. Atemschutzeinrichtung nach Anspruch 1, dadurch gekenn­zeichnet, daß die Anzeigeeinheit (12) mit einer das Anzeigefeld (13) ins Unendliche abbildenden Optik versehen ist.3. Respiratory protection device according to claim 1, characterized in that the display unit (12) is provided with a display field (13) in infinity imaging optics.
EP87107931A 1986-07-02 1987-06-02 Breathing protection apparatus with signal processing unit Expired - Lifetime EP0252281B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863622147 DE3622147A1 (en) 1986-07-02 1986-07-02 RESPIRATORY DEVICE WITH SIGNAL PROCESSING UNIT
DE3622147 1986-07-02

Publications (2)

Publication Number Publication Date
EP0252281A1 true EP0252281A1 (en) 1988-01-13
EP0252281B1 EP0252281B1 (en) 1991-01-30

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EP87107931A Expired - Lifetime EP0252281B1 (en) 1986-07-02 1987-06-02 Breathing protection apparatus with signal processing unit

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EP (1) EP0252281B1 (en)
JP (1) JPH066843Y2 (en)
DE (2) DE3622147A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752383A1 (en) * 1996-08-16 1998-02-20 Intertechnique Sa Oxygen mask for aeronautical use with various operating modes
EP1121959A1 (en) * 2000-02-01 2001-08-08 Optrel Ag Emergency flight safety device
EP1130448A1 (en) 2000-02-01 2001-09-05 Optrel Ag Emergency flight safety device
CH692103A5 (en) * 1997-05-01 2002-02-15 Ruag Electronics A method for monitoring the proper use of a gas mask and gas mask for use in the process.
AU750147B2 (en) * 1998-10-08 2002-07-11 Tablam Pty Ltd Rescue equipment
DE10135458A1 (en) * 2001-07-20 2003-02-06 Matthias Veltmann Digital pressure display for use in displaying the remaining pressure in an oxygen bottle, whereby the pressure display is mounted in the peripheral area of a mask worn by a diver or person wearing a breathing mask
US6567220B2 (en) 2001-07-02 2003-05-20 Be Intellectual Property, Inc. Aviation crew mask with retinal scan instrument display for smoke in cockpit emergencies
US7038639B1 (en) * 2003-06-09 2006-05-02 The United States Of America As Represented By The Secretary Of The Navy Display system for full face masks
GB2454491A (en) * 2007-11-08 2009-05-13 Joseph Anthony Griffiths Emergency breathing apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914802A1 (en) * 1989-05-05 1990-11-08 Draegerwerk Ag Pressure gauge for breathing appts. - is mounted on low pressure side of pressure reducing valve
DE4132680C2 (en) * 1991-10-01 1994-02-10 Draegerwerk Ag Respirator mask with inner half mask and pollutant indicator
DE4425262C1 (en) * 1994-07-16 1995-08-31 Draegerwerk Ag Breathing mask
DE10333585A1 (en) * 2003-07-24 2005-02-24 Dräger Safety AG & Co. KGaA Respiratory protection product with an electrical component

Citations (3)

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Publication number Priority date Publication date Assignee Title
US3314424A (en) * 1962-11-14 1967-04-18 Douglas Aircraft Co Inc Microphone support device for a mask
US4156292A (en) * 1978-05-23 1979-05-29 The United States Of America As Represented By The Secretary Of The Army Display carrying and protective helmet
US4231117A (en) * 1979-01-15 1980-11-04 Gentex Corporation Helmet assembly for accurately positioning visual display system

Family Cites Families (4)

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US3787109A (en) * 1972-06-28 1974-01-22 Honeywell Inc Inside helmet sight apparatus
GB1403575A (en) * 1972-08-09 1975-08-28 Rank Organisation Ltd Optical viewing system
GB1533859A (en) * 1975-04-29 1978-11-29 Elliott Bros Headgear incorporating optical display systems
DE3427692C1 (en) * 1984-07-27 1986-01-02 Drägerwerk AG, 2400 Lübeck ABC protective hood for air crew

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314424A (en) * 1962-11-14 1967-04-18 Douglas Aircraft Co Inc Microphone support device for a mask
US4156292A (en) * 1978-05-23 1979-05-29 The United States Of America As Represented By The Secretary Of The Army Display carrying and protective helmet
US4231117A (en) * 1979-01-15 1980-11-04 Gentex Corporation Helmet assembly for accurately positioning visual display system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752383A1 (en) * 1996-08-16 1998-02-20 Intertechnique Sa Oxygen mask for aeronautical use with various operating modes
US5913307A (en) * 1996-08-16 1999-06-22 Intertechnique Breathing protection equipment with operating mode indication
CH692103A5 (en) * 1997-05-01 2002-02-15 Ruag Electronics A method for monitoring the proper use of a gas mask and gas mask for use in the process.
AU750147B2 (en) * 1998-10-08 2002-07-11 Tablam Pty Ltd Rescue equipment
EP1121959A1 (en) * 2000-02-01 2001-08-08 Optrel Ag Emergency flight safety device
EP1130448A1 (en) 2000-02-01 2001-09-05 Optrel Ag Emergency flight safety device
US6675800B2 (en) 2000-02-01 2004-01-13 Optrel Ag Emergency flight safety device
US6567220B2 (en) 2001-07-02 2003-05-20 Be Intellectual Property, Inc. Aviation crew mask with retinal scan instrument display for smoke in cockpit emergencies
DE10135458A1 (en) * 2001-07-20 2003-02-06 Matthias Veltmann Digital pressure display for use in displaying the remaining pressure in an oxygen bottle, whereby the pressure display is mounted in the peripheral area of a mask worn by a diver or person wearing a breathing mask
US7038639B1 (en) * 2003-06-09 2006-05-02 The United States Of America As Represented By The Secretary Of The Navy Display system for full face masks
GB2454491A (en) * 2007-11-08 2009-05-13 Joseph Anthony Griffiths Emergency breathing apparatus

Also Published As

Publication number Publication date
JPS6313160U (en) 1988-01-28
JPH066843Y2 (en) 1994-02-23
DE3622147C2 (en) 1988-10-27
EP0252281B1 (en) 1991-01-30
DE3767795D1 (en) 1991-03-07
DE3622147A1 (en) 1988-01-21

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