EP0353417B1 - Gastight protective garment with a chemically-produced oxygen breathing protection apparatus - Google Patents

Gastight protective garment with a chemically-produced oxygen breathing protection apparatus Download PDF

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Publication number
EP0353417B1
EP0353417B1 EP89110010A EP89110010A EP0353417B1 EP 0353417 B1 EP0353417 B1 EP 0353417B1 EP 89110010 A EP89110010 A EP 89110010A EP 89110010 A EP89110010 A EP 89110010A EP 0353417 B1 EP0353417 B1 EP 0353417B1
Authority
EP
European Patent Office
Prior art keywords
protective suit
valve
oxygen
breathing bag
cap
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
EP89110010A
Other languages
German (de)
French (fr)
Other versions
EP0353417A1 (en
Inventor
Volker Hünnebeck
Klaus-Dieter Dahrendorf
Klaus Schmidtke
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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft GmbH
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 Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Publication of EP0353417A1 publication Critical patent/EP0353417A1/en
Application granted granted Critical
Publication of EP0353417B1 publication Critical patent/EP0353417B1/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
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/04—Couplings; Supporting frames
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A62B17/006—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes against contamination from chemicals, toxic or hostile environments; ABC suits

Definitions

  • the invention relates to a gas-tight protective suit with a chemical oxygen respirator to be worn under the protective suit according to the preamble of claim 1.
  • a hose connection element is arranged between a pressure relief valve of a breathing bag of the breathing apparatus and a valve defined in the protective suit, through which an overproduction of oxygen accumulated in the breathing bag can be derived from the protective suit (FR -A-2314735).
  • the invention is therefore based on the object of ensuring a safe discharge of the excess oxygen from the protective suit to the outside in a chemical oxygen device to be worn under a gas-tight protective suit.
  • a flexible hose connection element 5 is arranged between the pressure relief valve 1 of the breathing bag 2 and an exhalation valve 3 of the protective suit 4, by means of which an overproduction of oxygen accumulated in the breathing bag is blown out of the protective suit into the open air .
  • the hose connection element 5 consists essentially of a flexible hose part 6, each with fixedly arranged screw connection parts 7 at the free ends, which are provided for captive connection on the one hand to the valve holder 3a of the exhalation valve 3 in the protective suit 4 and on the other hand to a connecting piece 8, which in a Pressure valve 1 comprising elastic cap part 9 is inserted or buttoned.
  • the hose connecting element 5 with the connecting part 8 is at this end on the pressure relief valve 1 detachably fixed, while it is screwed firmly at the other end to the valve holder 3a of the exhalation valve 3 in the protective suit 4.
  • the elastic cap valve 9 is in the form of a bellows-type rubber cap 9a.
  • the cap part 9 arranged on the pressure relief valve 1 and on the outside of the breathing bag 2 can be folded because of its bellows-like design, which is also advantageous for the desired tight packing of the chemical oxygen device 12 into a container when the device is stored.
  • the cap part 9 also serves as a protective cap for the pressure relief valve 1.
  • a ring 9b protruding beyond the bellows 9a is formed, the inside diameter of which is designed as a holding bead 9b which engages in a groove 8a in the connecting piece 8 of the hose connecting element 5 which corresponds to the holding bead when the hose connecting element is inserted or buttoned into the cap part 9 becomes.
  • the seal between the cap part 9 and the connecting piece 8 takes place at a point 9d inside the cap part 9, while the retaining bead 9b is fixed by a so-called tight fit in the groove 8a of the connecting piece 8. A secure fit of the connecting piece 8 in the cap part 9 is thereby achieved.
  • the ring 9b is designed as a grip part for inserting or removing the connecting piece 8.
  • the cap part 9 is fixed on the valve holder 1 a of the pressure relief valve 1 and clamped with it on the fabric edge 2 a of the breathing bag 2.
  • the pressure relief valve 1 opens by means of a pull chain 10 arranged in the breathing bag 2 and the oxygen blown out of the breathing bag passes in the direction of arrow A via the hose connection element 5 and the exhalation valve 3 outside the protective suit 4 , wherein the exhalation valve is covered by a protective cap 11, which deflects the oxygen flow, for example downwards towards the floor.
  • the device carrier carries the chemical oxygen device 12 in front of the chest under the protective suit 4 and the hose connecting element 5 according to the invention deflects the excess oxygen accumulated in the breathing bag 2 through the protective cap 11 to the outside.

Description

Die Erfindung betrifft einen gasdichten Schutzanzug mit einem unter dem Schutzanzug zu tragenden Chemikalsauerstoff-Atemschutzgerät nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a gas-tight protective suit with a chemical oxygen respirator to be worn under the protective suit according to the preamble of claim 1.

Bei einem Schutzanzug mit Atemschutzgerät der gattungsgemäßen Art ist es bekannt, daß zwischen einem Überdruckventil eines Atembeutels des Atemschutzgerätes und einem im Schutzanzug festgelegten Ventil ein Schlauchverbindungselement angeordnet ist, durch das bei einer im Atembeutel angesammelten Überproduktion von Sauerstoff dieser aus dem Schutzanzug abgeleitet werden kann (FR-A-2314735).In a protective suit with a breathing apparatus of the generic type, it is known that a hose connection element is arranged between a pressure relief valve of a breathing bag of the breathing apparatus and a valve defined in the protective suit, through which an overproduction of oxygen accumulated in the breathing bag can be derived from the protective suit (FR -A-2314735).

Der Erfindung liegt daher die Aufgabe zugrunde, bei einem unter einem gasdichten Schutzanzug zu tragenden Chemikalsauerstoffgerät eine sichere Ableitung des überschüssigen Sauerstoffs aus dem Schutzanzug hinaus ins Freie zu gewährleisten.The invention is therefore based on the object of ensuring a safe discharge of the excess oxygen from the protective suit to the outside in a chemical oxygen device to be worn under a gas-tight protective suit.

Diese Aufgabe wird gemäß der Erfindung durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved according to the invention by the characterizing features of claim 1.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß mit einfachen Mitteln bei einem Chemikalsauerstoffgerät mit Atembeutel und Überdruckventil, dieses ohne bauliche Veränderungen am Gerät, selbst jederzeit sicher vom Gerätträger unter dem Schutzanzug getragen werden kann.The advantages achieved by the invention are, in particular, that simple means in a chemical oxygen device with a breathing bag and pressure relief valve, this can be worn safely at any time by the wearer of the device under the protective suit without structural changes to the device.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the invention result from the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.
Es zeigt:

Fig. 1
eine Schnittdarstellung eines erfindungsgemäßen Schlauchverbindungselementes zwischen dem Überdruckventil des Atembeutels und einem Ausatemventil des Schutzanzuges, und
Fig. 2
eine Darstellung des Trägers mit Schutzanzug und Chemikalsauerstoffgerät sowie dem Verbindungselement nach Fig. 1.
An embodiment of the invention is shown in the drawing and will be described in more detail below.
It shows:
Fig. 1
a sectional view of a hose connecting element according to the invention between the pressure relief valve of the breathing bag and an exhalation valve of the protective suit, and
Fig. 2
a representation of the wearer with protective suit and chemical oxygen device and the connecting element according to FIG. 1.

Wie aus den Figuren 1 und 2 ersichtlich ist, ist zwischen dem Überdruckventil 1 des Atembeutels 2 und einem Ausatemventil 3 des Schutzanzuges 4 ein biegsames Schlauchverbindungselement 5 angeordnet, durch welches bei einer im Atembeutel angesammelten Überproduktion von Sauerstoff dieser aus dem Schutzanzug hinaus ins Freie abgeblasen wird.
Das Schlauchverbindungselement 5 besteht im wesentlichen aus einem flexiblen Schlauchteil 6 mit jeweils an den freien Enden fest angeordneten Schraubverbindungsteilen 7, die zum unverlierbaren Anschluß einerseits an den Ventilhalter 3a des Ausatemventils 3 im Schutzanzug 4 und andererseits an ein Verbindungsstück 8 vorgesehen sind, welches in ein das Überdruckventil 1 umfassendes elastisches Kappenteil 9 eingesteckt bzw eingeknöpft wird. Auf diese Weise ist das Schlauchverbindungselement 5 mit Verbindungsteil 8 an diesem Ende am Überdruckventil 1 abnehmbar festgelegt, während es an seinem anderen Ende am Ventilhalter 3a des Ausatemventils 3 im Schutzanzug 4 fest eingeschraubt ist.
Das elastische Kappenventil 9 ist in Form einer faltenbalgartigen Gummikappe 9a ausgebildet. Das am Überdruckventil 1 und außen am Atembeutel 2 angeordnete Kappenteil 9 ist aufgrund seiner faltenbalgartigen Ausführung zusammenklappbar, was auch vorteilhaft für ein angestrebtes enges Zusammenpacken des Chemikalsauerstoffgerätes 12 in einem Behälter ist, wenn das Gerät gelagert wird. Das Kappenteil 9 dient weiterhin auch als Schutzkappe für das Überdruckventil 1.
Am Kappenteil 9 ist ein über den Faltenbalg 9a hinausragender Ring 9b angeformt, dessen Innendurchmesser als Haltewulst 9b ausgebildet ist, die in eine mit der Haltewulst übereinstimmende Nut 8a im Verbindungsstück 8 des Schlauchverbindungselementes 5 eingreift, wenn das Schlauchverbindungselement in das Kappenteil 9 eingesteckt bzw. eingeknöpft wird. Die Dichtung zwischen dem Kappenteil 9 und dem Verbindungsstück 8 erfolgt an einer Stelle 9d im Innern des Kappenteils 9, während die Haltewulst 9b durch einen sogenannten satten Sitz in der Nut 8a des Verbindungsstückes 8 festgelegt ist. Dadurch wird ein sicherer Sitz des Verbindungsstückes 8 im Kappenteil 9 erreicht. Der Ring 9b ist als ein Griffteil für das Einstecken bzw. Herausnehmen des Verbindungsstückes 8 ausgebildet.
Das Kappenteil 9 ist am Ventilhalter 1a des Überdruckventils 1 festgelegt und mit diesem am Stoffrand 2a des Atembeutels 2 eingeklemmt. Für den Fall, daß sich im Atembeutel ein Sauerstoffüberschuß angesammelt hat, öffnet das Überdruckventil 1 mittels einer im Atembeutel 2 angeordneten Zugkette 10 und der aus dem Atembeutel abgeblasene Sauerstoff gelangt in Pfeilrichtung A über das Schlauchverbindungselement 5 und das Ausatemventil 3 außerhalb des Schutzanzuges 4 ins Freie, wobei das Ausatemventil von einer Schutzkappe 11 abgedeckt ist, die den Sauerstoffstrom, beispielsweise nach unten zum Boden hin, ablenkt.As can be seen from FIGS. 1 and 2, a flexible hose connection element 5 is arranged between the pressure relief valve 1 of the breathing bag 2 and an exhalation valve 3 of the protective suit 4, by means of which an overproduction of oxygen accumulated in the breathing bag is blown out of the protective suit into the open air .
The hose connection element 5 consists essentially of a flexible hose part 6, each with fixedly arranged screw connection parts 7 at the free ends, which are provided for captive connection on the one hand to the valve holder 3a of the exhalation valve 3 in the protective suit 4 and on the other hand to a connecting piece 8, which in a Pressure valve 1 comprising elastic cap part 9 is inserted or buttoned. In this way, the hose connecting element 5 with the connecting part 8 is at this end on the pressure relief valve 1 detachably fixed, while it is screwed firmly at the other end to the valve holder 3a of the exhalation valve 3 in the protective suit 4.
The elastic cap valve 9 is in the form of a bellows-type rubber cap 9a. The cap part 9 arranged on the pressure relief valve 1 and on the outside of the breathing bag 2 can be folded because of its bellows-like design, which is also advantageous for the desired tight packing of the chemical oxygen device 12 into a container when the device is stored. The cap part 9 also serves as a protective cap for the pressure relief valve 1.
On the cap part 9, a ring 9b protruding beyond the bellows 9a is formed, the inside diameter of which is designed as a holding bead 9b which engages in a groove 8a in the connecting piece 8 of the hose connecting element 5 which corresponds to the holding bead when the hose connecting element is inserted or buttoned into the cap part 9 becomes. The seal between the cap part 9 and the connecting piece 8 takes place at a point 9d inside the cap part 9, while the retaining bead 9b is fixed by a so-called tight fit in the groove 8a of the connecting piece 8. A secure fit of the connecting piece 8 in the cap part 9 is thereby achieved. The ring 9b is designed as a grip part for inserting or removing the connecting piece 8.
The cap part 9 is fixed on the valve holder 1 a of the pressure relief valve 1 and clamped with it on the fabric edge 2 a of the breathing bag 2. In the event that an excess of oxygen has accumulated in the breathing bag, the pressure relief valve 1 opens by means of a pull chain 10 arranged in the breathing bag 2 and the oxygen blown out of the breathing bag passes in the direction of arrow A via the hose connection element 5 and the exhalation valve 3 outside the protective suit 4 , wherein the exhalation valve is covered by a protective cap 11, which deflects the oxygen flow, for example downwards towards the floor.

In Fig. 2 ist ersichtlich, daß der Gerätträger das Chemikalsauerstoffgerät 12 vor der Brust unter dem Schutzanzug 4 trägt und das erfindungsgemäße Schlauchverbindungselement 5 den im Atembeutel 2 angesammelten überschüssigen Sauerstoff über die Schutzkappe 11 nach außen ablenkt.In Fig. 2 it can be seen that the device carrier carries the chemical oxygen device 12 in front of the chest under the protective suit 4 and the hose connecting element 5 according to the invention deflects the excess oxygen accumulated in the breathing bag 2 through the protective cap 11 to the outside.

Claims (2)

  1. A gas-tight protective suit (4) with a chemical oxygen respirator (12), to be carried under the protective suit, consisting of a chemical cartridge emitting oxygen, a breathing bag (2) with excess pressure valve (1) and a breathing tube with respirator mask, in which between the excess pressure valve (1) of the breathing bag (2) and an exhaling valve (3), secured in the protective suit (4), a flexible tube connecting element (5) is arranged, through which, in the case of an excess production of oxygen accumulated in the breathing bag, this oxygen is carried out of the protective suit into the open air,
    characterised in that
    a) for the undetachable connection of the tube connecting element (5) to the excess pressure valve (1), a cap piece (9) is provided, consisting of an elastic material, in which
    b) the cap piece (9) is constructed in the form of a bellows (9a) and is secured with one end on the valve holder (1a) of the excess pressure valve (1), and
    c) the cap piece (9) has at the other end a ring (9b) projecting over the bellows (9a), the inner diameter rim of which ring is constructed as a holding bead (9c), which engages into a groove (8a) of a connecting piece (8) arranged on the hose connecting element (5).
  2. A gas-tight protective suit according to Claim 1, characterised in that the valve (3) of the protective suit (4) is covered by a protective cap (11).
EP89110010A 1988-07-28 1989-06-02 Gastight protective garment with a chemically-produced oxygen breathing protection apparatus Expired - Lifetime EP0353417B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3825621 1988-07-28
DE3825621A DE3825621A1 (en) 1988-07-28 1988-07-28 GAS-TIGHT PROTECTIVE SUIT WITH A CHEMICAL OXYGEN BREATHING PROTECTOR

Publications (2)

Publication Number Publication Date
EP0353417A1 EP0353417A1 (en) 1990-02-07
EP0353417B1 true EP0353417B1 (en) 1992-11-25

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ID=6359735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89110010A Expired - Lifetime EP0353417B1 (en) 1988-07-28 1989-06-02 Gastight protective garment with a chemically-produced oxygen breathing protection apparatus

Country Status (2)

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EP (1) EP0353417B1 (en)
DE (2) DE3825621A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6796304B2 (en) 2002-04-12 2004-09-28 3M Innovative Properties Company Personal containment system with sealed passthrough
US6823867B2 (en) 2002-04-12 2004-11-30 3M Innovative Properties Company Pouch for the blower unit of a powered air purifying respirator
US6948191B2 (en) 2002-04-12 2005-09-27 3M Innovative Properties Company Personal protective suit with partial flow restriction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101292957B1 (en) * 2013-04-12 2013-08-02 주식회사 산청 Intake valve for air filling of chemical proof clothes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1187487B (en) * 1962-05-19 1965-02-18 Auergesellschaft Gmbh Gas-tight protective suit
US3457918A (en) * 1967-02-13 1969-07-29 Gen Electric Permeable protective suit in combination with means for maintaining a viable atmosphere
DE2140632A1 (en) * 1971-08-13 1973-02-22 Kern & Grosskinsky ONE-WAY CHECK VALVE FOR A GAS-TIGHT PROTECTIVE SUIT
FR2314735A1 (en) * 1975-06-16 1977-01-14 Fenzy Maurice Protective suit for dangerous environments - has breathing apparatus fitted into rear to provide protection against damage
US4164218A (en) * 1977-12-09 1979-08-14 Midori Anzen Company, Ltd. Personal escape breathing apparatus
DE3005980C2 (en) * 1980-02-18 1982-07-15 Drägerwerk AG, 2400 Lübeck Respiratory protection suit with display device for the breathing gas supply

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6796304B2 (en) 2002-04-12 2004-09-28 3M Innovative Properties Company Personal containment system with sealed passthrough
US6823867B2 (en) 2002-04-12 2004-11-30 3M Innovative Properties Company Pouch for the blower unit of a powered air purifying respirator
US6948191B2 (en) 2002-04-12 2005-09-27 3M Innovative Properties Company Personal protective suit with partial flow restriction

Also Published As

Publication number Publication date
DE3825621C2 (en) 1991-08-22
DE3825621A1 (en) 1990-02-01
DE58902806D1 (en) 1993-01-07
EP0353417A1 (en) 1990-02-07

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