EP0171458B1 - Breathing apparatus as oxygen self rescue device - Google Patents

Breathing apparatus as oxygen self rescue device Download PDF

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Publication number
EP0171458B1
EP0171458B1 EP84109929A EP84109929A EP0171458B1 EP 0171458 B1 EP0171458 B1 EP 0171458B1 EP 84109929 A EP84109929 A EP 84109929A EP 84109929 A EP84109929 A EP 84109929A EP 0171458 B1 EP0171458 B1 EP 0171458B1
Authority
EP
European Patent Office
Prior art keywords
chemical cartridge
protection device
respiratory protection
sleeve
respirator
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
Application number
EP84109929A
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German (de)
French (fr)
Other versions
EP0171458A1 (en
Inventor
Werner Dr. Mascher
Klaus Haertle
Ulrich Timm
Bernd Woicke
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Auergesellschaft GmbH
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Auergesellschaft GmbH
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Application filed by Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Publication of EP0171458A1 publication Critical patent/EP0171458A1/en
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Publication of EP0171458B1 publication Critical patent/EP0171458B1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/08—Respiratory apparatus containing chemicals producing oxygen

Description

Die Erfindung betrifft ein Atemschutzgerät als Fluchtgerät mit Pendelatmung nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a breathing apparatus as an escape device with pendulum breathing according to the preamble of claim 1.

Atemschutzgeräte der eingangs genannten Art, sind in luftdicht verschließbaren Bereitschaftsbehältern untergebracht, die beispielsweise im Grubenbetrieb verwendet, vom Bergmann ständig mitgeführt und am Körper getragen werden. Zum Gebrauch wird das Gerät aus dem Bereitschaftsbehälter herausgenommen.Respiratory protective devices of the type mentioned at the outset are accommodated in airtight lockable standby containers which are used, for example, in mine operations, are constantly carried by the miner and are worn on the body. The device is removed from the standby container for use.

Es liegt auf der Hand, daß ein derartiges Atemschutzgerät für ein ständiges Mitführen hinsichtlich Gewicht und Abmessungen leicht und klein sein muß.It is obvious that such a respirator must be light and small for constant carrying in terms of weight and dimensions.

Bei einem bekannten Atemschutzgerät der gattungsgemäßen Art, ist der Atembeutel oberhalb der Chemikalpatrone angeordnet, wobei die Chemikalpatrone im Gehäuseunterteil und der Atembeutel mit dem Atemschlauch und Mundstück im Gehäusedeckel untergebracht sind (SU-A-248504). Dadurch ist ein verhältnismäßig hochbauender Gehäusedeckel erforderlich, der damit die Gesamtgröße des Bereitschaftsbehälters wesentlich mitbestimmt, so daß das Atemschutzgerät mit dem Bereitschaftsbehälter mittels eines Schultergurtes am Körper getragen werden muß. Bei den extrem rauhen Bedingungen im Grubenbetrieb, ist diese Gerättrageweise für den das Gerät ständig mitführenden Bergmann beschwerlich.In a known respiratory protection device of the generic type, the breathing bag is arranged above the chemical cartridge, the chemical cartridge in the lower housing part and the breathing bag with the breathing tube and mouthpiece in the housing cover (SU-A-248504). As a result, a relatively high-profile housing cover is required, which thus substantially determines the overall size of the standby container, so that the breathing apparatus with the standby container must be worn on the body by means of a shoulder strap. In the extremely harsh conditions in mine operations, this device carrying method is difficult for the miner who is always carrying the device.

Schließlich ist ein Atemschutzgerät bekannt, bei dem ein schlauchförmig ausgebildeter Atembeutel über die Chemikalpatronen-Mantelfläche gezogen und an dieser mittels zweier metallstreifenförmiger Schellen befestigt ist (US-A-2492272). Das zum Ansammeln von atembarer Luft wirksam zur Verfügung stehende Volumen des Atembeutels erstreckt sich bei dieser Ausführung als langgestreckte Beutelform unterhalb der Chemikalpatrone.Finally, a breathing apparatus is known in which a tubular breathing bag is drawn over the surface of the chemical cartridge and attached to it by means of two metal strip-shaped clamps (US-A-2492272). In this embodiment, the volume of the breathing bag that is effectively available for collecting breathable air extends as an elongated bag shape below the chemical cartridge.

Der Erfindung liegt daher die Aufgabe zugrunde, eine besonders raumsparende und kompakte Gestaltung für einen Sauerstoffselbstretter als Fluchtgerät zu schaffen und so platzsparend auszubilden, daß das Gerät in einem am Gürtel des Gerätträgers zu tragenden Bereitschaftsbehälter untergebracht werden kann.The invention is therefore based on the object to provide a particularly space-saving and compact design for an oxygen self-rescuer as an escape device and to save space so that the device can be accommodated in a standby container to be worn on the belt of the device wearer.

Diese Aufgabe wird gemäß der Erfindung bei einem Atemschutzgerät der eingangs genannten Art durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved according to the invention in a breathing apparatus of the type mentioned by the characterizing features of claim 1.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß die Baugröße des Atemschutzgerätes verringert wird, und darüber hinaus durch die besondere Anordnung der Chemikalpatrone ohne festen Kontakt mit dem die Patrone umhüllenden Atembeutel, die Oberflächentemperatur des Gerätes vorteilhaft herabgesetzt wird. Weiterhin wird durch die isolierende Anordnung zwischen dem Wärmeaustauscher und der Chemikalpatrone trotz der Kompaktbauweise des Gerätes, die Temperatur der Einatemluft ebenfalls herabgesetzt.The advantages achieved by the invention are, in particular, that the size of the breathing apparatus is reduced, and moreover, the surface temperature of the device is advantageously reduced by the special arrangement of the chemical cartridge without firm contact with the breathing bag enveloping the cartridge. Furthermore, the insulating arrangement between the heat exchanger and the chemical cartridge, despite the compact design of the device, also lowers the temperature of the inhaled air.

Die Erfindung hat in überraschender Weise gezeigt, daß es möglich ist, die Chemikalpatrone im Innern des Atembeutels anzuordnen, obwohl zu erwarten war, daß die von der Chemikalpatrone im Betrieb abgegebene Wärme für den Atembeutel und für die im Atembeutel befindliche Einatemluft eine unerträgliche Belastung darstellt. Es war davon auszugehen, daß, wie bisher, wegen der bekannten Wärmebelastung für den Atembeutel, dieser von der Chemikalpatrone als Wärmequelle unbedingt getrennt anzuordnen ist.The invention has surprisingly shown that it is possible to arrange the chemical cartridge inside the breathing bag, although it was to be expected that the heat emitted by the chemical cartridge during operation would be an unbearable burden for the breathing bag and for the breathing air in the breathing bag. It was to be assumed that, as before, because of the known heat load for the breathing bag, it must be arranged separately from the chemical cartridge as the heat source.

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

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben. Die Figur zeigt eine schematische Darstellung des erfindungsgemäßen Atemschutzgerätes mit Pendelatmung.Embodiments of the invention are shown in the drawing and are described in more detail below. The figure shows a schematic representation of the breathing apparatus according to the invention with pendulum breathing.

In der Figur ist ein erfindungsgemäßes Atemschutzgerät mit Pendelatmung dargestellt. Das Atemschutzgerät besteht aus einer sauerstoffentwickelnden Chemikalpatrone 1, einem Wärmeaustauscher 2, der in einem Gehäuse 3 untergebracht ist und auf wärmedämmenden Abstandshaltern 4 aufliegt, wodurch ein Wärmekontakt mit der Chemikalpatrone 1 vermieden wird, einer wärmedämmenden Hülle 5, die die Chemikalpatrone 1 futteralartig umgibt und trägt, einem Atembeutel 6, der die Chemikalpatrone 1 mit Hülle 5 vollständig umhüllt, und aus einem Atemschlauch 7 mit einem Mundstück 8, der an einem Rohrstutzen 3a des Gehäuses 3 mittels einer Verschellung 10 angeschlossen ist.In the figure, a breathing apparatus according to the invention with pendulum breathing is shown. The respirator consists of an oxygen-evolving chemical cartridge 1, a heat exchanger 2, which is housed in a housing 3 and rests on heat-insulating spacers 4, thereby avoiding thermal contact with the chemical cartridge 1, a heat-insulating sleeve 5 which surrounds and carries the chemical cartridge 1 in a lining-like manner , a breathing bag 6, which completely envelops the chemical cartridge 1 with the sleeve 5, and a breathing tube 7 with a mouthpiece 8, which is connected to a pipe socket 3a of the housing 3 by means of a constriction 10.

Die Hülle 5, die mit einem Flanschteil 5b im Atembeutel angeordnet und mit diesem verbunden ist, ist als integrierter Bestandteil des Atembeutels 6 an der oberen Stirnseite 6a des Atembeutels im Atembeutel angeordnet und weist an ihrem inneren Umfang eine Anzahl Abstandshalter 5c auf. Wird die Chemikalpatrone 1 in die Hülle 5 eingesetzt, dann liegen die Abstandshalter 5c an der Mantelfäche (A) der Chemikalpatrone 1 an. Das Gehäuse 3 des Wärmeaustauschers 2 bildet den oberen Abschluß der Hülle 5 für die Chemikalpatrone 1 und ist an einem Flanschteil 5a der Hülle 5 mittels einer Schelle 9 angeschlossen. Auf diese Weise besteht zwischen der Chemikalpatrone selbst und dem Atembeutel keine feste Verbindung, so daß die von der Chemikalpatrone im Betrieb abgegebene Wärme günstiger von der Oberfläche des Gerätes ferngehalten wird.The sleeve 5, which is arranged with a flange part 5b in the breathing bag and connected to it, is arranged as an integral part of the breathing bag 6 on the upper end face 6a of the breathing bag in the breathing bag and has a number of spacers 5c on its inner circumference. If the chemical cartridge 1 is inserted into the casing 5, the spacers 5c rest on the surface area (A) of the chemical cartridge 1. The housing 3 of the heat exchanger 2 forms the upper end of the casing 5 for the chemical cartridge 1 and is connected to a flange part 5a of the casing 5 by means of a clamp 9. In this way, there is no fixed connection between the chemical cartridge itself and the breathing bag, so that the heat emitted by the chemical cartridge during operation is more conveniently kept away from the surface of the device.

Die Hülle 5 weist an der unteren Stirnfläche 5d im Bereich der Austrittsöffnung 1 b der Chemikalpatrone 1 eine Vielzahl von Öffnungen 5e zum Durchströmen der Aus- und Einatemluft auf. Die Durchströmung der Chemikalpatrone 1 wird durch die Pfeile angegeben.The casing 5 has a plurality of openings 5e on the lower end face 5d in the region of the outlet opening 1b of the chemical cartridge 1 for the exhaled and inhaled air to flow through. The flow through the chemical cartridge 1 is indicated by the arrows.

Claims (8)

1. A respiratory protection device as an escape apparatus with reciprocating respiration, comprising a chemical cartridge (1) generating oxygen, a respirator bag (6) connected to the chemical cartridge (1), the chemical cartridge being secured with its inlet opening on the top end face of the respirator bag, and a respirator hose (7) with a mouthpiece (8), characterised in that
a) the chemical cartridge (1) is situated inside the respirator bag (6) and wholly encased thereby, in such a way that the outer surface (A) of the chemical cartridge is surrounded on all sides by a free space within the respirator bag when the apparatus is in use, and
b) the chemical cartridge (1) is received in the manner of a sheath by a thermally insulating sleeve (5) which is installed in the respirator bag at the top end face (6a) as an integral component of the respirator bag (6) and protrudes with one flange portion (5a) out of the respirator bag as well as having another flange portion (5b) arranged within the respirator bag, and connected to the latter.
2. Respiratory protection device according to claim 1, characterised in that the sleeve (5) is formed by an elastic material which corresponds to that of the respirator bag (6).
3. Respiratory protection device according to claim 1, characterised in that the sleeve (5) has on its inner periphery a number of spacers (5c) which are in contact with the outer surface area of the chemical cartridge (1) and form an interstice (A) between the chemical cartridge (1) and the sleeve (5).
4. Respiratory protection device according to claims 1 and 3, characterised in that the chemical cartridge (1) inserted into the sleeve (5) from above does not form a fixed connection with the respirator bag (6).
5. Respiratory protection device according to claim 1, characterised in that a heat exchanger (2) is arranged above the chemical cartridge (1) in such a way that it does not establish any thermal contact with the chemical cartridge (1).
6. Respiratory protection device according to claims 1 and 2, characterised in that the heat exchanger (2) is enclosed by a housing (3) which is borne via thermally insulating spacers (4) on the top side of the chemical cartridge (1) and that the housing (3) forms the top closure of the sleeve (5).
7. Respiratory protection device according to claims 1, 5 and 6, characterised in that the housing (3) of the heat exchanger (2) is inserted into the elastic flange portion (5a) and is firmly connected to the respirator bag (6) by means of a clip (9).
8. Respiratory protection device according to claim 1, characterised in that control valves (13) are installed in the housing (3) below the heat exchanger (2), that the housing (3) is insertibly connected to the chemical cartridge (1) and that the sleeve (5) has outlet slots (5f) below the control valves (13), so that the respiratory protection device may be operated with circulating respiration (Fig. 2).
EP84109929A 1984-07-20 1984-08-21 Breathing apparatus as oxygen self rescue device Expired EP0171458B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3426760 1984-07-20
DE19843426760 DE3426760A1 (en) 1984-07-20 1984-07-20 BREATHING DEVICE AS AN OXYGEN SELF-RESCUE

Publications (2)

Publication Number Publication Date
EP0171458A1 EP0171458A1 (en) 1986-02-19
EP0171458B1 true EP0171458B1 (en) 1989-04-05

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Family Applications (1)

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EP84109929A Expired EP0171458B1 (en) 1984-07-20 1984-08-21 Breathing apparatus as oxygen self rescue device

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EP (1) EP0171458B1 (en)
DE (1) DE3426760A1 (en)
ZA (1) ZA848538B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3700458A1 (en) * 1987-01-09 1988-07-21 Draegerwerk Ag RESPIRATORY DEVICE WITH REGENERATION OF BREATHING AIR
US10149990B2 (en) 2016-11-18 2018-12-11 Soteria Technologies Llc Portable, light-weight oxygen-generating breathing apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE664464C (en) * 1931-12-06 1938-08-30 I G Farbenindustrie Akt Ges Closed oxygen breathing apparatus for short-term use
FR42618E (en) * 1932-12-05 1933-08-23 Oxylite regenerator for protection devices against all asphyxiating gases
US2492272A (en) * 1946-10-16 1949-12-27 Mine Safety Appliances Co Breathing apparatus
US3893459A (en) * 1974-03-04 1975-07-08 Mine Safety Appliances Co Emergency breathing apparatus
DE2642890C2 (en) * 1976-09-21 1982-12-16 Auergesellschaft Gmbh, 1000 Berlin Chemical cartridge
DE2702192B2 (en) * 1977-01-20 1979-02-01 Draegerwerk Ag, 2400 Luebeck Breathing apparatus with an oxygen-releasing chemical cartridge
US4164218A (en) * 1977-12-09 1979-08-14 Midori Anzen Company, Ltd. Personal escape breathing apparatus
DE3111795C3 (en) * 1981-03-20 1986-02-20 Auergesellschaft Gmbh, 1000 Berlin Breathing bag with an air distributor inside

Also Published As

Publication number Publication date
ZA848538B (en) 1985-06-26
EP0171458A1 (en) 1986-02-19
DE3426760C2 (en) 1987-10-29
DE3426760A1 (en) 1986-01-30

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