EP0297234A1 - Protective helmet with a strapless breathing mask - Google Patents

Protective helmet with a strapless breathing mask Download PDF

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Publication number
EP0297234A1
EP0297234A1 EP88106292A EP88106292A EP0297234A1 EP 0297234 A1 EP0297234 A1 EP 0297234A1 EP 88106292 A EP88106292 A EP 88106292A EP 88106292 A EP88106292 A EP 88106292A EP 0297234 A1 EP0297234 A1 EP 0297234A1
Authority
EP
European Patent Office
Prior art keywords
plug
protective helmet
helmet according
spring
mask
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
EP88106292A
Other languages
German (de)
French (fr)
Other versions
EP0297234B1 (en
Inventor
Sven Bode
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
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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
Priority to AT88106292T priority Critical patent/ATE67684T1/en
Publication of EP0297234A1 publication Critical patent/EP0297234A1/en
Application granted granted Critical
Publication of EP0297234B1 publication Critical patent/EP0297234B1/en
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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
    • A62B18/084—Means for fastening gas-masks to heads or helmets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45623—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor
    • Y10T24/45639—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including pivotally connected element on receiving member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45717—Receiving member includes either movable connection between interlocking components or variable configuration cavity having cavity with side walls and axially biased component capping end

Definitions

  • the invention relates to a protective helmet with a strapless breathing mask in a detachable connection according to the preamble of claim 1.
  • detachable connections are provided on the two side surfaces of the protective helmet and on the respiratory mask, and locking means which can be plugged into and locked into one another (DE-PS 2640 701).
  • the holding means each consist of a tensioning slide arranged on the protective helmet with an oval-funnel-shaped receiving part fixed thereon and a coupling pin arranged on the respirator mask.
  • the coupling pins which are provided with unlockable locking balls, are inserted into the funnel-shaped receiving parts and locked there.
  • the cocking slide For individual adjustment and sealing of the mask on the circumferential sealing line on the face, the cocking slide must be pushed backwards from the face, whereby the respirator mask is locked in a corresponding position on the protective helmet wall by means of a roller pressed along an inclined plane.
  • This locking is form-fitting and there is a risk that the connection between the mask and the protective helmet loosens over time, so that the circumferential sealing line of the mask on the face leaks.
  • Another disadvantage of this embodiment is also to be seen in the fact that the interconnected connecting elements represent a relatively rigid connection between the mask and the protective helmet. Speech and face movements of the wearer or possible displacement movements caused by force on the helmet cannot be compensated accordingly.
  • the invention is therefore based on the object of providing a protective helmet with a strapless respiratory mask in a detachable connection, the connection between the mask and protective helmet ensuring a permanent secure seal of the mask on the face when worn and also compensating for all movements occurring between the mask and protective helmet is able to record.
  • the advantages achieved by the invention are, in particular, that a quick and uncomplicated connection or connection of the mask to the protective helmet can take place when the protective helmet is on, the individual adaptation and sealing of the mask on the face being automatically adjustable by the means provided in the connecting element and can harmonize all movements of the detachably joined parts harmoniously.
  • the connecting element A is composed essentially of two parts, namely a connector part 3 articulated on the respiratory mask 2 on the lens frame 2a and a connector receptacle part 4 arranged on the protective helmet 1 (see FIG. 2).
  • the connector receptacle part 4 consists of a housing 4a which is U-shaped in cross section and in which a carriage 4b which is displaceable in the longitudinal direction against the force of a spring 10 is arranged and which can optionally be moved into previously defined positions and is non-positively fixed there (cf. Figures 3 to 6).
  • a spring locking spring 5 movable locking element 6 arranged transversely to the longitudinal axis of the carriage, which has a sawtooth-shaped tip 6a, which cooperates positively with toothed recesses 4a 'machined in the housing 4a, and which, in the longitudinal displacement of the Slide 4b against the force of the spring 10 in the direction of the protective helmet 1, into the recess 4a 'corresponding to the desired position automatically engages (cf. 4.6 and 7).
  • the key 11 is L-shaped and is supported at one end of the long leg piece 11a at the bearing point 12, while a pin 13 projecting therefrom is fixedly arranged to the short leg piece 11b.
  • the pin 13 interacts with an obliquely machined elongated hole 6b in the locking element 6.
  • a leaf spring 14 cooperating with the key is arranged in the slide 4b.
  • the leaf spring 14 clamped in the carriage 4b at one end 14a resiliently presses with the free end 14b against the short leg piece 11b of the button 11 and holds it in a rest position.
  • a pin 15 is arranged near the clamped end 14a, on which the plug part 3 engages for connection to the plug receiving part 4 by means of a tongue-like plug element 3d.
  • the plug-in element 3d has a through-hole 3d ', into which the spring-loaded pin 15 snaps into place, namely when the plug-in element 3d is inserted through an opening 4b' worked into the slide 4b.
  • connection of the plug part 3 to the plug receptacle part 4 which is effected in this way can be released by pressing the spring-loaded button 11 down.
  • the pin 15 arranged on the leaf spring 14 then moves out of the through hole and thus releases the plug element of the plug part 3.
  • the plug part 3 consists in each case of a two-part bracket arm 3a and 3b, the parts of which can be plugged into one another and pulled out against the force of a spring 7 connecting the two parts, and of a on the lens frame 2a of the respiratory mask 2 by means of a pin 17 rotatably arranged base 3c, on which one bracket arm 3b is articulated to a pin 16 and from the plug element 3d movably arranged at the free end of the other bracket arm 3a by means of a pin 19.
  • the rotatable mobility of the plug-in element 3d around the pin 19 is limited by two stops incorporated in the plug-in element 3d ⁇ , which abut against a pin 20 arranged in the bracket arm 3a and surrounded by an elastic ring 9 (see FIG. 6).
  • a torsion spring 8 is arranged on the pin 16, which interacts with the bow arm 3 and automatically swings it towards the mask body 2.
  • the side arms 3 are inevitably placed close to the mask body when the respirator is not connected to the protective helmet by the wearer.
  • the bracket arms 3 are thus protected on the one hand from damage and on the other hand can not cause any injuries even to the wearer.
  • the connector receptacle part 4 which is recessed laterally in a recess on the protective helmet 1 (not shown), is covered by a cap 18, which is provided with a grip part 18a, on which the wearer, for example, grips his hand fingers when the mask 2 is placed on the helmet 1, in order to be able to adapt the mask worn on the protective helmet close to the face.
  • connection of the tapeless respiratory mask 2 to the protective helmet 1 is such that the wearer, when the protective helmet is put on, introduces the tongue-like plug-in elements 3d of the respiratory protective mask to be put into the connector receptacle part 4.
  • the leaf spring 14 arranged in the slide 4b is pressed down with the pin, and the pin snaps resiliently into the through hole 3d 'of the plug-in element 3d.
  • the breathing mask 2 is thus first connected to the protective helmet 1.
  • the breathing mask 2 coupled to the movable carriage 4b must be pushed backwards from the face in order to adapt the edge of the breathing mask 2b to the shape of the head and face of the wearer, the carriage in the housing 4a of the connector receptacle part 4 in a corresponding position by means of the latching element 6 is locked automatically. This locking is non-positive.
  • the plug part 3 has a certain elasticity and rotatability. This is achieved on the one hand by the fact that the nested two-part bracket arms 3a and 3b of the plug part 3 are extendable against the force of the spring 7 and can be resiliently lengthened when the respiratory mask 2 is adjusted, and on the other hand by the fact that the plug-in element 3d can be rotated to a limited extent and against dampens the elastic stop 9, and that the base 3d of the plug part 3 on the viewing window frame 2a of the respiratory mask 2 can also be rotated to a limited extent. From this it is clear that the movements between the respiratory mask 2 and the protective helmet 1 are correspondingly balanced for the wearer and comfortable wearing of the two different components which are detachably joined to form a carrying unit is advantageously ensured.
  • the connector part 3 with the respiratory mask 2 is released from the connector receptacle part 4 of the protective helmet 1 by depressing the two spring-loaded keys 11.
  • the slide 4b in the housing 4a of the connector receptacle part 4 is released from its detent position and is released by the force of the spring 10 in pressed an end position forward, while on the other hand the arranged on the leaf spring 14 pin 15 moves out of the through hole 3d 'of the plug element 3d and releases it. From this it is clear that the key 11 triggers two functions simultaneously when depressed.

Landscapes

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

Abstract

The invention describes a protective helmet (1) with a strapless breathing mask (2) in a detachable connection, which is formed by lockable connecting elements on both sides, on the helmet and on the mask, which plug one into the other. The connecting element substantially comprises an intrinsically flexible plug part (3) which is arranged on the breathing mask (2), to be rotatable within limits, and a plug receiving part (4) arranged on the protective helmet (1) with an adjusting device (4b, 11) inserted therein. For the purpose of detachably connecting the mask (2) to the protective helmet (1), the plug part (3) is plugged into the plug receiving part (4) and is automatically locked there by the means provided in the plug receiving part (4). <IMAGE>

Description

Die Erfindung betrifft einen Schutzhelm mit einer bänderlosen Atemschutzmaske in einer lösbaren Verbindung nach dem Ober­begriff des Patentanspruchs 1.The invention relates to a protective helmet with a strapless breathing mask in a detachable connection according to the preamble of claim 1.

Bei einem bekannten Schutzhelm dieser Art, werden als lösbare Verbindung an den beiden Seitenflächen des Schutzhelms und an der Atemschutzmaske jeweils ineinandersteck- und arretierbare Halte­rungsmittel vorgesehen (DE-PS 2640 701). Die Halterungsmittel setzen sich jeweils aus einem am Schutzhelm angeordneten Spann­schieber mit einem daran festgelegten oval-trichterförmigen Aufnahmeteil und aus einem jeweils an der Atemschutzmaske angeordneten Kupplungsstift zusammen. Zur Herstellung der Verbindung zwischen Atemschutzmaske und Schutzhelm werden die mit entriegelbaren Sperrkugeln versehenen Kupplungsstifte in die trichterförmigen Aufnahmeteile eingeführt und dort verriegelt. Zur individuellen Anpassung und Abdichtung der Maske auf der umlaufenden Dichtungslinie am Gesicht, müssen die Spannschieber vom Gesicht her nach hinten geschoben werden, wobei mittels einer an einer schiefen Ebene entlang gedrückten Walze die Atemschutz­maske in einer entsprechenden Stellung an der Schutzhelmwand arretiert wird. Diese Arretierung ist formschlüssig und es besteht die Gefahr, daß sich im Laufe der Zeit im Tragezustand die Verbindung zwischen Maske und Schutzhelm lockert, so daß die umlaufende Dichtungslinie der Maske am Gesicht undicht wird.
Ein weiterer Nachteil dieser Ausführung ist auch darin zu sehen, daß die ineinandergesteckten Verbindungselemente in sich eine verhältnismäßig starre Verbindung zwischen Maske und und Schutzhelm darstellen. Sprech- und Gesichtsbewegungen des Trägers oder eventuell auftretende Versatzbewegungen, hervor­gerufen durch Krafteinwirkungen auf den Helm, können nicht entsprechend ausgeglichen werden.In a known protective helmet of this type, detachable connections are provided on the two side surfaces of the protective helmet and on the respiratory mask, and locking means which can be plugged into and locked into one another (DE-PS 2640 701). The holding means each consist of a tensioning slide arranged on the protective helmet with an oval-funnel-shaped receiving part fixed thereon and a coupling pin arranged on the respirator mask. To establish the connection between the respiratory mask and the protective helmet, the coupling pins, which are provided with unlockable locking balls, are inserted into the funnel-shaped receiving parts and locked there. For individual adjustment and sealing of the mask on the circumferential sealing line on the face, the cocking slide must be pushed backwards from the face, whereby the respirator mask is locked in a corresponding position on the protective helmet wall by means of a roller pressed along an inclined plane. This locking is form-fitting and there is a risk that the connection between the mask and the protective helmet loosens over time, so that the circumferential sealing line of the mask on the face leaks.
Another disadvantage of this embodiment is also to be seen in the fact that the interconnected connecting elements represent a relatively rigid connection between the mask and the protective helmet. Speech and face movements of the wearer or possible displacement movements caused by force on the helmet cannot be compensated accordingly.

Der Erfindung liegt deshalb die Aufgabe zugrunde, einen Schutz­helm mit einer bänderlosen Atemschutzmaske in einer lösbaren Verbindung zu schaffen, wobei im Tragezustand die Verbindung zwischen Maske und Schutzhelm eine dauerhafte sichere Abdichtung der Maske am Gesicht gewährleistet und darüber hinaus alle auf­tretenden Bewegungen zwischen Maske und Schutzhelm ausgleichend aufzunehmen vermag.The invention is therefore based on the object of providing a protective helmet with a strapless respiratory mask in a detachable connection, the connection between the mask and protective helmet ensuring a permanent secure seal of the mask on the face when worn and also compensating for all movements occurring between the mask and protective helmet is able to record.

Diese Aufgabe wird erfindungsgemäß bei einem Schutzhelm mit einer bänderlosen Atemschutzmaske in einer lösbaren Verbindung der eingangs genannten Art durch die kennzeich­nenden Merkmale des Patentanspruchs 1 gelöst.This object is achieved according to the invention in a protective helmet with a tapeless respiratory mask in a releasable connection of the type mentioned at the outset by the characterizing features of patent claim 1.

Die mit der Erfindung erzielten Vorteile bestehen insbeson­dere darin, daß bei aufgesetzem Schutzhelm ein schnelles und unkompliziertes Verbinden bzw. Anschließen der Maske an den Schutzhelm erfolgen kann, wobei die individuelle Anpassung und Abdichtung der Maske am Gesicht durch die im Verbindungs­element vorgesehenen Mittel selbsttätig einstellbar sind und alle Bewegungen der lösbar zusammengefügten Teile harmonisch auszugleichen vermag.The advantages achieved by the invention are, in particular, that a quick and uncomplicated connection or connection of the mask to the protective helmet can take place when the protective helmet is on, the individual adaptation and sealing of the mask on the face being automatically adjustable by the means provided in the connecting element and can harmonize all movements of the detachably joined parts harmoniously.

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

  • Fig. 1: eine Seitenansicht des Schutzhelms mit Atem­schutzmaske und einer erfindungsgemäßen Ver­bindungseinrichtung, im vom Träger aufgesetztem Zustand,
  • Fig. 2: eine Seitenansicht des Schutzhelms mit Atemschutz­maske und Verbindungseinrichtung, wobei Helm und Maske voneinander getrennt sind,
  • Fig. 3: eine Seitenansicht im Schnitt der Verbindungsein­richtung, wobei ein Steckerteil der Atemschutz­maske in ein Steckeraufnahmeteil des Schutzhelms in einer ersten Raststellung festgelegt ist,
  • Fig. 4: einen Schnitt nach der Linie I-I der Fig. 3
  • Fig. 5: eine Seitenansicht im Schnitt der Verbindungsein­richtung, wobei das Steckerteil im Steckeraufnahmeteil in einer weiteren möglichen Raststellung festgelegt ist,
  • Fig. 6: einen Schnitt nach der Linie II-II der Fig. 5 und
  • Fig. 7: eine Vorder- und Seitenansicht eines Rastelementes.
An embodiment of the invention is shown in the drawing and will be described in more detail below. It shows:
  • 1: a side view of the protective helmet with respiratory mask and a connecting device according to the invention, in the state put on by the wearer,
  • 2 shows a side view of the protective helmet with a respirator mask and connecting device, the helmet and mask being separated from one another,
  • 3 shows a side view in section of the connecting device, a connector part of the respiratory mask being fixed in a connector receiving part of the protective helmet in a first latching position,
  • 4 shows a section along the line II of FIG. 3rd
  • 5 shows a side view in section of the connecting device, the plug part being fixed in a further possible latching position in the plug receiving part,
  • Fig. 6: a section along the line II-II of Fig. 5 and
  • Fig. 7: a front and side view of a locking element.

Die Fig. 1 zeigt einen vom Träger aufgesetzten Schutzhelm 1 mit angelegter Atemschutzmaske 2, wobei jeweils beidseitig angeordnet, ein lösbares Verbindungselement A als Verbindung zwischen Schutzhelm und Atemschutzmaske vorgesehen ist. Das Verbindungselement A setzt sich im wesentlichen aus zwei Teilen zusammen, und zwar aus einem an der Atemschutzmaske 2 am Sicht­scheibenrahmen 2a gelenkig angeordneten Steckerteil 3 und aus einem am Schutzhelm 1 angeordneten Steckeraufnahmeteil 4 (vgl. Fig. 2).1 shows a protective helmet 1 put on by the wearer with a respirator mask 2 applied, a detachable connecting element A being provided as a connection between the protective helmet and the respirator mask, arranged on both sides. The connecting element A is composed essentially of two parts, namely a connector part 3 articulated on the respiratory mask 2 on the lens frame 2a and a connector receptacle part 4 arranged on the protective helmet 1 (see FIG. 2).

Das Steckeraufnahmeteil 4 besteht aus einem im Querschnitt U-förmig ausgebildeten Gehäuse 4a, in dem ein in Längsrichtung gegen die Kraft einer Feder 10 verschiebbar geführter Schlitten 4b angeordnet ist, der wahlweise in vorher festgelegte Stellun­gen verschoben werden kann und dort kraftschlüssig festgelegt wird (vgl. Figuren 3 bis 6). Im Schlitten 4b ist hierfür ein unter Federdruck einer Feder 5 stehendes bewegliches Rastele­ment 6 quer zur Längsachse des Schlittens angeordnet, welches eine sägezahnförmig ausgebildete Spitze 6a aufweist, die mit im Gehäuse 4a entsprechend eingearbeiteten verzahnten Ver­tiefungen 4a′ kraftschlüssig zusammenwirkt, und die, bei Längs­verschiebung des Schlittens 4b gegen die Kraft der Feder 10 in Richtung zum Schutzhelm 1 hin, in die der gewünschten Stellung entsprechende Vertiefung 4a′ selbsttätig einrastet (vgl. 4.6 und 7).The connector receptacle part 4 consists of a housing 4a which is U-shaped in cross section and in which a carriage 4b which is displaceable in the longitudinal direction against the force of a spring 10 is arranged and which can optionally be moved into previously defined positions and is non-positively fixed there (cf. Figures 3 to 6). In the carriage 4b there is a spring locking spring 5 movable locking element 6 arranged transversely to the longitudinal axis of the carriage, which has a sawtooth-shaped tip 6a, which cooperates positively with toothed recesses 4a 'machined in the housing 4a, and which, in the longitudinal displacement of the Slide 4b against the force of the spring 10 in the direction of the protective helmet 1, into the recess 4a 'corresponding to the desired position automatically engages (cf. 4.6 and 7).

Das Ausrasten des Rastelementes 6 aus der jeweiligen Vertie­fung 4a′, und somit das Lösen des im Gehäuse 4a festgelegten Schlittens 4b in eine andere verschiebbare Stellung innerhalb des Gehäuses, erfolgt mittels einer im Schlitten an einer Lagerstelle 12 einseitig gelagerten Taste 11 (Fig. 3 und 5).The disengagement of the latching element 6 from the respective recess 4a ', and thus the release of the carriage 4b fixed in the housing 4a into another displaceable position within the housing, is carried out by means of a button 11 mounted on one side in the carriage at a bearing 12 (FIGS. 3 and 5).

Die Taste 11 ist L-förmig ausgebildet und ist mit dem einen Ende des langen Schenkelstücks 11a an der Lagerstelle 12 ge­lagert, während zu dem kurzen Schenkelstück 11b ein von diesem herausragender Stift 13 fest angeordnet ist. Der Stift 13 wirkt mit einem im Rastelement 6 schräg eingearbeiteten Langloch 6b zusammen.The key 11 is L-shaped and is supported at one end of the long leg piece 11a at the bearing point 12, while a pin 13 projecting therefrom is fixedly arranged to the short leg piece 11b. The pin 13 interacts with an obliquely machined elongated hole 6b in the locking element 6.

Beim Niederdrücken der Taste 11 bewegt sich der im schräg­gestellten Langloch 6b des Rastelementes 6 geführte Stift 13 senkrecht nach unten und führt das quer zur Längsachse des Schlittens 4b angeordnete Rastelement gegen die Kraft der Feder 5 au der jeweiligen Vertiefung 4a′ heraus. Damit ist der Schlitten 4b mit dem Rastelement 6 aus seiner Raststellung im Gehäuse 4a gelöst und wird durch die Kraft der Feder 10 in eine Endstellung nach vorne einrastend gedrückt (vgl. Fig. 3 und 4).When the button 11 is depressed, the pin 13 guided in the inclined slot 6b of the latching element 6 moves vertically downward and guides the latching element arranged transversely to the longitudinal axis of the slide 4b against the force of the spring 5 au the respective recess 4a '. The slide 4b with the locking element 6 is thus released from its locking position in the housing 4a and is pressed forward by the force of the spring 10 into an end position (cf. FIGS. 3 and 4).

Unterhalb der Taste 11 ist eine mit der Taste zusammenwirkende Blattfeder 14 im Schlitten 4b angeordnet. Die im Schlitten 4b an einem Ende 14a eingespannte Blattfeder 14 drückt mit dem freien Ende 14b federnd gegen das kurze Schenkelstück 11b der Taste 11 und hält diese in einer Ruhestellung.Below the key 11, a leaf spring 14 cooperating with the key is arranged in the slide 4b. The leaf spring 14 clamped in the carriage 4b at one end 14a resiliently presses with the free end 14b against the short leg piece 11b of the button 11 and holds it in a rest position.

Auf der Blattfeder 14 ist nahe dem eingespannten Ende 14a ein Zapfen 15 angeordnet, auf den das Steckerteil 3 zur Ver­bindung mit dem Steckeraufnahmeteil 4 mittels eines zungen­artigen Steckelementes 3d eingreift. Das Steckelement 3d weist hierfür ein Durchgangsloch 3d′ auf, in das der federnd gelagerte Zapfen 15 unverlierbar einrastet, und zwar beim Hineinstecken des Steckelementes 3d durch eine im Schlitten 4b eingearbeitete Öffnung 4b′.On the leaf spring 14, a pin 15 is arranged near the clamped end 14a, on which the plug part 3 engages for connection to the plug receiving part 4 by means of a tongue-like plug element 3d. For this purpose, the plug-in element 3d has a through-hole 3d ', into which the spring-loaded pin 15 snaps into place, namely when the plug-in element 3d is inserted through an opening 4b' worked into the slide 4b.

Die auf diese Weise erfolgte Verbindung des Steckerteils 3 mit dem Steckeraufnahmeteil 4 ist durch Niederdrücken der federbelasteten Taste 11 lösbar. Hierbei bewegt sich dann der auf der Blattfeder 14 angeordnete Zapfen 15 aus dem Durch­gangsloch heraus und gibt somit das Steckelement des Stecker­teils 3 frei.The connection of the plug part 3 to the plug receptacle part 4 which is effected in this way can be released by pressing the spring-loaded button 11 down. The pin 15 arranged on the leaf spring 14 then moves out of the through hole and thus releases the plug element of the plug part 3.

Wie insbesondere aus den Figuren 5 und 6 ersichtlich ist, besteht das Steckerteil 3 jeweils aus einem zweiteiligen Bügelarm 3a und 3b, dessen Teile ineinandersteckbar und gegen die Kraft einer die beiden Teile verbindenden Feder 7 ausziehbar sind, und aus einem am Sichtscheibenrahmen 2a der Atemschutzmaske 2 mittels eines Stiftes 17 begrenzt drehbar angeordneten Sockel 3c, an dem der eine Bügelarm 3b an einem Stift 16 gelenkig festgelegt ist sowie aus dem an dem freien Ende des anderen Bügelarms 3a mittels eines Stiftes 19 beweglich angeordneten Steckelement 3d. Die drehbare Beweg­lichkeit des Steckelementes 3d um den Stift 19 wird durch zwei im Steckelement eingearbeitete Anschläge 3d˝ begrenzt, die an einem im Bügelarm 3a angeordneten und von einem elasti­schen Ring 9 umgebenden Stift 20 abdämpfend anschlagen (vgl. Fig. 6).As can be seen in particular from FIGS. 5 and 6, the plug part 3 consists in each case of a two-part bracket arm 3a and 3b, the parts of which can be plugged into one another and pulled out against the force of a spring 7 connecting the two parts, and of a on the lens frame 2a of the respiratory mask 2 by means of a pin 17 rotatably arranged base 3c, on which one bracket arm 3b is articulated to a pin 16 and from the plug element 3d movably arranged at the free end of the other bracket arm 3a by means of a pin 19. The rotatable mobility of the plug-in element 3d around the pin 19 is limited by two stops incorporated in the plug-in element 3d˝, which abut against a pin 20 arranged in the bracket arm 3a and surrounded by an elastic ring 9 (see FIG. 6).

Auf dem Stift 16 ist eine Torsionsfeder 8 angeordnet, die mit dem Bügelarm 3 zusammenwirkt und diesen selbsttätig gegen den Maskenkörper 2 hinschwenkt. Auf diese Weise werden zwangs­läufig die seitlichen Bügelarme 3 dicht an den Maskenkörper gelegt, wenn die Atemschutzmaske vom Träger nicht mit dem Schutzhelm verbunden ist. Die Bügelarme 3 sind somit einer­seits vor Beschädigungen geschützt und können andererseits selbst dem Trager keine Verletzungen zufügen.A torsion spring 8 is arranged on the pin 16, which interacts with the bow arm 3 and automatically swings it towards the mask body 2. In this way, the side arms 3 are inevitably placed close to the mask body when the respirator is not connected to the protective helmet by the wearer. The bracket arms 3 are thus protected on the one hand from damage and on the other hand can not cause any injuries even to the wearer.

Das jeweils seitlich in einer Ausnehmung am Schutzhelm 1 (nicht dargestellt) eingelassene Steckeraufnahmeteil 4 wird von einer Kappe 18 abgedeckt, die mit einem Griffteil 18a ver­sehen ist, an dem der Träger beim Anlegen der Maske 2 an den Helm 1 beispielsweise mit seinen Handfingern hintergreift, um die am Schutzhelm angelegte Maske dicht an die Gesichtsfläche anpassen zu können.The connector receptacle part 4, which is recessed laterally in a recess on the protective helmet 1 (not shown), is covered by a cap 18, which is provided with a grip part 18a, on which the wearer, for example, grips his hand fingers when the mask 2 is placed on the helmet 1, in order to be able to adapt the mask worn on the protective helmet close to the face.

Nachfolgend wird die Funktion des Verbindungselementes A beschrieben:The function of the connecting element A is described below:

Die Verbindung der bänderlosen Atemschutzmaske 2 mit dem Schutzhelm 1 erfolgt derart, daß der Träger bei aufgesetztem Schutzhelm die zungenartigen Steckelemente 3d der anzulegenden Atemschutzmaske in das Steckeraufnahmeteil 4 einführt. Hierbei wird die im Schlitten 4b angeordnete Blattfeder 14 mit dem Zapfen niedergedrückt, und der Zapfen rastet federnd in das Durchgangsloch 3d′ des Steckelementes 3d unverlierbar ein. Damit ist zunächst die Atemschutzmaske 2 mit dem Schutzhelm 1 verbunden. Danach muß zur dichten Anpassung des Atemschutz­maskenrandes 2b an die Kopf- und Gesichtsform des Trägers die an den beweglichen Schlitten 4b angekoppelte Atemschutz­maske 2 vom Gesicht her nach hinten geschoben werden, wobei der Schlitten im Gehäuse 4a des Steckeraufnahmeteils 4 in einer entsprechenden Stellung mittels des Rastelementes 6 selbsttätig arretiert wird.
Diese Arretierung ist kraftschlüssig.The connection of the tapeless respiratory mask 2 to the protective helmet 1 is such that the wearer, when the protective helmet is put on, introduces the tongue-like plug-in elements 3d of the respiratory protective mask to be put into the connector receptacle part 4. Here, the leaf spring 14 arranged in the slide 4b is pressed down with the pin, and the pin snaps resiliently into the through hole 3d 'of the plug-in element 3d. The breathing mask 2 is thus first connected to the protective helmet 1. Thereafter, the breathing mask 2 coupled to the movable carriage 4b must be pushed backwards from the face in order to adapt the edge of the breathing mask 2b to the shape of the head and face of the wearer, the carriage in the housing 4a of the connector receptacle part 4 in a corresponding position by means of the latching element 6 is locked automatically.
This locking is non-positive.

Damit die Sprech- und Gesichtsbewegungen des Trägers oder aber auch die bei eventueller Krafteinwirkung auf den Helm auf­tretenden Versatzbewegungen ausgeglichen werden können, wird dies im wesentlichen dadurch erreicht, daß das Steckerteil 3 in sich eine gewisse Elastizität und Drehbarkeit aufweist. Dies wird einmal dadurch erreicht, daß die ineinandergesteckten zweiteiligen Bügelarme 3a und 3b des Steckerteils 3 gegen die Kraft der Feder 7 ausziehbar sind und sich beim Anpassen der Atemschutzmaske 2 federnd längen lassen, und zum anderen da­durch, daß das Steckelement 3d begrenzt drehbar ist und gegen den elastischen Anschlag 9 abdämpfend anschlägt,und daß der Sockel 3d des Steckerteils 3 am Sichtscheibenrahmen 2a der Atemschutzmaske 2 ebenfalls begrenzt drehbar ist. Hieraus wird deutlich, daß die Bewegungen zwischen der Atemschutzmaske 2 und dem Schutzhelm 1 für den Träger entsprechend harmonisch ausgeglichen werden und ein angenehmes Tragen der beiden unterschiedlichen, zu einer Trageeinheit lösbar zusammengefüg­ten Bauteile vorteilhaft gewährleistet ist.So that the speech and face movements of the wearer or also the offset movements that occur in the event of force being exerted on the helmet can be compensated for, this is essentially achieved in that the plug part 3 has a certain elasticity and rotatability. This is achieved on the one hand by the fact that the nested two-part bracket arms 3a and 3b of the plug part 3 are extendable against the force of the spring 7 and can be resiliently lengthened when the respiratory mask 2 is adjusted, and on the other hand by the fact that the plug-in element 3d can be rotated to a limited extent and against dampens the elastic stop 9, and that the base 3d of the plug part 3 on the viewing window frame 2a of the respiratory mask 2 can also be rotated to a limited extent. From this it is clear that the movements between the respiratory mask 2 and the protective helmet 1 are correspondingly balanced for the wearer and comfortable wearing of the two different components which are detachably joined to form a carrying unit is advantageously ensured.

Weiterhin wird deutlich, daß somit keine Bewegungen auf die Atemschutzmaske von Schutzhelm kommend übertragen werden, die sonst üblicherweise bei den bekannten Ausführungen zu Undichtigkeiten am Atemschutzmaskenrand 2b führen würden.Furthermore, it is clear that no movements coming from the protective helmet are thus transmitted to the respirator mask, which would otherwise normally lead to leaks at the edge of the respirator mask 2b in the known designs.

Das Lösen des Steckerteils 3 mit der Atemschutzmaske 2 vom Steckeraufnahmeteil 4 des Schutzhelms 1 erfolgt durch Nieder­drücken der beiden federbelasteten Tasten 11. Hierbei löst sich dann einerseits der Schlitten 4b im Gehäuse 4a des Stecker­aufnahmeteils 4 aus seiner Raststellung und wird durch die Kraft der Feder 10 in eine Endstellung nach vorne einrastend gedrückt, während andererseits der auf der Blattfeder 14 an­geordnete Zapfen 15 sich aus dem Durchgangsloch 3d′ des Steck­elementes 3d herausbewegt und dieses freigibt. Hieraus wird deutlich, daß die Taste 11 beim Niederdrücken gleichzeitig zwei Funktionen auslöst.The connector part 3 with the respiratory mask 2 is released from the connector receptacle part 4 of the protective helmet 1 by depressing the two spring-loaded keys 11. Here, on the one hand, the slide 4b in the housing 4a of the connector receptacle part 4 is released from its detent position and is released by the force of the spring 10 in pressed an end position forward, while on the other hand the arranged on the leaf spring 14 pin 15 moves out of the through hole 3d 'of the plug element 3d and releases it. From this it is clear that the key 11 triggers two functions simultaneously when depressed.

Claims (14)

1. Schutzhelm mit einer bänderlosen Atemschutzmaske in einer lösbaren Verbindung, die durch beidseitig am Helm und an der Maske angeordnete ineinandersteck- und arretierbare Verbindungselemente gebildet ist, dadurch gekennzeichnet, daß a) das Verbindungselement (A) jeweils aus einem an der Atemschutzmaske (2) begrenzt drehbar angeordneten und in sich flexiblen Steckerteil (3) und aus einem am Schutzhelm (1) angeordneten Steckeraufnahmeteil (4) besteht, und b) das Steckeraufnahmeteil (4) eine in eine Anzahl unter­schiedlicher Raststellungen verschiebbare Verstellein­richtung (4b, 11) aufweist, die das Steckerteil (3) im Steckeraufnahmeteil (4) kraftschlüssig festlegt. 1. Safety helmet with a strapless respirator in a releasable connection, which is formed by mutually pluggable and lockable connecting elements arranged on both sides of the helmet and on the mask, characterized in that a) the connecting element (A) consists in each case of a plug part (3) which is rotatably arranged on the respiratory protection mask (2) and which is flexible in itself and consists of a plug receiving part (4) arranged on the protective helmet (1), and b) the plug receiving part (4) has an adjustment device (4b, 11) which can be displaced into a number of different latching positions and which non-positively fixes the plug part (3) in the plug receiving part (4). 2. Schutzhelm nach Anspruch 1, dadurch gekennzeichnet, daß das Steckeraufnahmeteil (4) aus einem im Querschnitt U-förmig ausgebildeten Gehäuse (4a) und aus einem im Gehäuse in Längsrichtung gegen die Kraft einer Feder (10) verschiebbar geführten Schlitten (4b) besteht, der die Verstelleinrichtung bildet.2. Protective helmet according to claim 1, characterized in that the plug receiving part (4) consists of a cross-sectionally U-shaped housing (4a) and a slide in the housing in the longitudinal direction against the force of a spring (10) slidably guided (4b) which forms the adjusting device. 3. Schutzhelm nach den Ansprüchen 1 und 2, dadurch gekenn­zeichnet, daß im Schlitten (4b) ein unter Druck einer Feder (5) stehendes bewegliches Rastelement (6) quer zur Längsachse des Schlittens angeordnet ist, welches eine sägezahnförmig ausgebildete Spitze (6a) aufweist, die mit im Gehäuse (4a′) eingearbeitete und entsprechend definierte Vertiefungen (4a) kraftschlüssig zusammen­wirkt.3. Protective helmet according to claims 1 and 2, characterized in that in the carriage (4b) a pressurized spring (5) movable locking element (6) is arranged transversely to the longitudinal axis of the carriage, which has a sawtooth-shaped tip (6a) , which interacts with the housing (4a ') and appropriately defined recesses (4a). 4. Schutzhelm nach den Ansprüchen 1 bis 3, dadurch gekenn­zeichnet, daß im Schlitten (4b) eine einseitig gelagerte federbelastete Taste (11) angeordnet ist, die einen Stift (13) aufweist, der in ein im Rastelement (6) schräg eingearbeitetes Langloch (6b) eingreift und beim Nieder­drücken der Taste (11) das Rastelement aus der jeweiligen Raststellung (4a′) herausführt, wobei der Schlitten (4b) durch die Kraft der Feder (10) in eine andere Raststellung selbsttätig einrastet.4. Protective helmet according to claims 1 to 3, characterized in that in the carriage (4b) a one-sided spring-loaded button (11) is arranged, which has a pin (13) which is obliquely incorporated in a slot in the locking element (6) ( 6b) engages and when the button (11) is depressed, the locking element leads out of the respective locking position (4a '), the slide (4b) automatically engaging in another locking position by the force of the spring (10). 5. Schutzhelm nach den Ansprüchen 1, 3 und 4, dadurch ge­kennzeichnet, daß unterhalb der Taste (11) eine im Schlitten (4b) einseitig eingespannte Blattfeder (14) vorgesehen ist, die mit ihrem freien Ende (14b) federnd gegen die Taste drückt und diese in einer Ruhestellung hält.5. Protective helmet according to claims 1, 3 and 4, characterized in that below the button (11) in the carriage (4b) on one side clamped leaf spring (14) is provided, which presses with its free end (14b) resiliently against the button and keep it in a rest position. 6. Schutzhelm nach den Ansprüchen 1, 4 und 5, dadurch gekenn­zeichnet, daß auf der dem freien Ende (14b) gegenüberlie­genden Seite der Blattfeder (14) ein Zapfen (15) angeord­net ist, auf den zur Verbindung des Steckerteils (3) mit dem Steckeraufnahmeteil (4) ein zungenartiges Steckele­ment (3d) eingreift.6. Protective helmet according to claims 1, 4 and 5, characterized in that a pin (15) is arranged on the side of the leaf spring (14) opposite the free end (14b), on which to connect the plug part (3) with the Plug receiving part (4) engages a tongue-like plug element (3d). 7. Schutzhelm nach den Ansprüchen 1 und 6, dadurch gekennzeich­net, daß das zungenartige Steckelement (3d) ein Durch­gangsloch (3d′) aufweist, in das der federnd gelagerte Zapfen (15) beim Hineinstecken des Steckelementes (3d) durch eine im Schlitten (4b) eingearbeitete Öffnung (4b) unverlierbar einrastet.7. Protective helmet according to claims 1 and 6, characterized in that the tongue-like plug-in element (3d) has a through hole (3d ') into which the spring-loaded pin (15) when inserting the plug-in element (3d) by a in the carriage (4b ) incorporated opening (4b) snaps into place. 8. Schutzhelm nach den Ansprüchen 1, 6 und 7, dadurch ge­kennzeichnet, daß zur dichten Anpassung des Atemschutz­maskenrandes (2b) an die Kopf- und Gesichtsform des Trägers die an den beweglichen Schlitten (4b) angekoppelte Atemschutzmaske (2) vom Gesicht her nach hinten ver­schiebbar ist, wobei der Schlitten im Gehäuse (4a) des Steckeraufnahmeteils (4) in einer entsprechenden Stellung mittels des Rastelementes (6) selbsttätig arretierbar ist.8. Protective helmet according to claims 1, 6 and 7, characterized in that for the tight adaptation of the respirator rim (2b) to the head and face shape of the wearer, the respirator mask (2) coupled to the movable carriage (4b) from the face to the rear is displaceable, the slide in the housing (4a) of the plug receiving part (4) being able to be locked automatically in a corresponding position by means of the latching element (6). 9. Schutzhelm nach Anspruch 1, dadurch gekennzeichnet, daß das Steckerteil (3) aus einem an der Atemschutzmaske (2) mittels eines Stiftes (17) begrenzt drehbar angeordneten Sockel (3c) und aus einem zweiteiligen Bügelarm (3a, 3b) besteht, dessen Teile ineinandersteckbar und gegen die Kraft einer die beiden Teile verbindenden Feder (7) aus­ziehbar ist.9. Protective helmet according to claim 1, characterized in that the plug part (3) from a on the respirator (2) by means of a pin (17) limited rotatably arranged base (3c) and a two-part arm (3a, 3b), the Parts can be plugged into one another and pulled out against the force of a spring (7) connecting the two parts. 10. Schutzhelm nach den Ansprüchen 1, 6 und 9, dadurch gekenn­zeichnet, daß an dem freien Ende des Bügelarms (3a) das Steckelement (3d) mittels eines Stiftes (19) beweglich angeordnet ist, wobei die drehbare Beweglichkeit durch zwei im Steckelement (3d) eingearbeitete Anschläge (3d˝) begrenzt wird.10. Protective helmet according to claims 1, 6 and 9, characterized in that at the free end of the bracket arm (3a), the plug element (3d) by means of a pin (19) is arranged movably, the rotatable mobility by two in the plug element (3d ) incorporated stops (3d˝) is limited. 11. Schutzhelm nach Anspruch 10, dadurch gekennzeichnet, daß die im Steckelement (3d) eingearbeiteten Anschläge (3d˝) an einen im Bügelarm (3a) angeordneten und von einem elastischen Ring (9) umgebenden Stift (20) abdämpfend anschlagen.11. Protective helmet according to claim 10, characterized in that the inserted in the plug-in element (3d) stops (3d˝) on a in the bracket arm (3a) and of an elastic ring (9) surrounding pin (20) dampen. 12. Schutzhelm nach Anspruch 1 und 9, dadurch gekennzeichnet, daß auf dem den Bügelarm (3b) mit dem Sockel (3c) gelenkig verbindenden Stift (16) eine Torsionsfeder (8) angeord­net ist, die mit den Bügelarmen (3a und 3b) zusammenwirkt und diese selbsttätig an den Maskenkörper (2) anlegt.12. Protective helmet according to claim 1 and 9, characterized in that on the arm (3b) with the base (3c) articulated connecting pin (16) a torsion spring (8) is arranged, which cooperates with the arm arms (3a and 3b) and automatically applies them to the mask body (2). 13. Schutzhelm nach den Ansprüchen 1 und 2, dadurch gekenn­zeichnet, daß die jeweils seitlich in einer Ausnehmung am Schutzhelm (1) eingelassenen Steckeraufnahmeteile (4) von einer Kappe (18) abdeckbar sind.13. Protective helmet according to claims 1 and 2, characterized in that the plug receptacle parts (4) let in laterally in a recess in the protective helmet (1) can be covered by a cap (18). 14. Schutzhelm nach Anspruch 13, dadurch gekennzeichnet, daß die Schutzkappe (18) mit einem Griffteil (18a) versehen ist.14. Protective helmet according to claim 13, characterized in that the protective cap (18) is provided with a handle part (18a).
EP88106292A 1987-06-26 1988-04-20 Protective helmet with a strapless breathing mask Expired - Lifetime EP0297234B1 (en)

Priority Applications (1)

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AT88106292T ATE67684T1 (en) 1987-06-26 1988-04-20 SAFETY HELMET WITH A STRAPLESS RESPIRATOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3721662 1987-06-26
DE19873721662 DE3721662A1 (en) 1987-06-26 1987-06-26 PROTECTIVE HELMET WITH A STRAPLESS RESPIRATOR

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EP0297234A1 true EP0297234A1 (en) 1989-01-04
EP0297234B1 EP0297234B1 (en) 1991-09-25

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US (1) US4926854A (en)
EP (1) EP0297234B1 (en)
AT (1) ATE67684T1 (en)
DE (2) DE3721662A1 (en)

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AT412067B (en) * 1994-10-24 2004-09-27 Rosenbauer Oesterreich Ges M B PROTECTIVE HELMET WITH A CONNECTING DEVICE FOR A RESPIRATORY MASK
WO1996025983A1 (en) * 1995-02-22 1996-08-29 Comasec International S.A. Face mask
CN108136235A (en) * 2015-08-20 2018-06-08 3M创新有限公司 Buckle for connection strap band and the respirator beam tool including the buckle
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US4926854A (en) 1990-05-22
DE3721662A1 (en) 1989-01-12
ATE67684T1 (en) 1991-10-15
EP0297234B1 (en) 1991-09-25
DE3721662C2 (en) 1991-06-13
DE3865110D1 (en) 1991-10-31

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