EP0183917B1 - Protective hood with occlusion elements for the sides of the nose - Google Patents

Protective hood with occlusion elements for the sides of the nose Download PDF

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Publication number
EP0183917B1
EP0183917B1 EP85110501A EP85110501A EP0183917B1 EP 0183917 B1 EP0183917 B1 EP 0183917B1 EP 85110501 A EP85110501 A EP 85110501A EP 85110501 A EP85110501 A EP 85110501A EP 0183917 B1 EP0183917 B1 EP 0183917B1
Authority
EP
European Patent Office
Prior art keywords
protective hood
nose
hood according
elements
sides
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
EP85110501A
Other languages
German (de)
French (fr)
Other versions
EP0183917A1 (en
Inventor
Christian Schnoor
Wolfgang Dipl.-Ing. Diehl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP0183917A1 publication Critical patent/EP0183917A1/en
Application granted granted Critical
Publication of EP0183917B1 publication Critical patent/EP0183917B1/en
Expired 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
    • A62B9/06—Mouthpieces; Nose-clips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B63C11/12—Diving masks
    • B63C2011/125—Diving masks comprising nose-clips, i.e. pinching devices for closing the user's nose, other than rubber blisters integral with flexible mask elements

Definitions

  • the invention relates to a protective hood with the closing of the nostril serving closure elements which are arranged on a carrier located within the protective hood and are connected to power transmission devices which can be handled from outside the protective hood by means of an operating element.
  • a protective hood of the type mentioned above is known from DE-A-2 853 213.
  • Protective hoods of this type are used in areas of respiratory protection, diving technology, for flying aviation personnel and generally wherever the face or head area is protected from the ingress of non-breathable gases or where breathing is made possible by suitable aids.
  • a carrier designed as a half mask, on which a lever is pivotably guided on each side through the nose region of the hood, to the end of which a roller is fastened.
  • the levers are connected to the outside via an operating bracket.
  • the actuating bracket lies down against the hood, the rollers standing up in the interior.
  • the rollers on the inner mask roll down on both sides of the nose area and press the nostrils together over the mask.
  • Such a device for closing the nostrils is useful if the wearer of the protective hood has to overcome large differences in height in short periods of time.
  • GB-A-2 047 545 Another device for exercising the "Valsalva handle” is known from GB-A-2 047 545.
  • pressure pieces are shown that are resiliently attached to the mask and are connected by a flexible band running under the nose.
  • the band lies against the nose and pulls the pressure pieces together laterally.
  • the required swiveling of the hood and mask is cumbersome, impairs the tightness and disturbs the view at crucial moments.
  • the parts protruding into the mask space are a hindrance when wearing the mask.
  • the object of the invention is seen in improving a protective hood of the type mentioned in such a way that the device for closing the nostrils can be operated from the outside without impairing the field of vision by the user in such a way that manipulations in the vicinity of the hood space are not necessary.
  • closure elements are designed as lifting elements which are variable in their extension and which are connected via a flow medium contained in supply lines to an operating element which displaces the flow medium.
  • the advantage of the invention can be seen in the fact that the device for closing the nostrils can be operated without having to carry out any manipulations in the field of view of the protective hood, but that the user can operate the pressure required to close the nostrils simply by actuating the control element, which is designed as a pump, for example can determine itself.
  • the device for closing the nostrils can be easily adapted to any face profile of a mask wearer due to the advantageous use of expandable plastic cushions.
  • the carrier has adjustment devices for the lifting elements, from which they advantageously lie in the area of a half mask covering the nostrils.
  • the pressure on the nostrils is thus advantageously distributed over a larger area, and pressure points in the area of the nostrils are avoided.
  • the carrier forms the abutment.
  • the adjustment devices for the lifting elements can be slot-shaped cutouts in the side parts of the carrier; however, a multi-axis displaceable receiving device for the lifting elements can also be attached to the carrier.
  • a balloon-shaped control element 3 is via a connecting piece 10, which is a vent tion 11, connected to a feed line 2.
  • the plastic cushions 1 are fastened on a circular disk 13 and lie with this on the inside of a V-shaped support 7, which surrounds the nose area of the half mask 5.
  • the supply lines 2 arrive from the outside to the connecting pipes 14, which open into the cavity of the plastic cushion 1.
  • the curved connecting pipes 14 reach through the carrier 7 on its leg surfaces through one of the adjusting devices 8 in the form of elongated holes.
  • the way the locking elements work allows the device to be handled easily and conveniently for the user.

Description

Die Erfindung betrifft eine Schutzhaube mit dem Verschliessen der Nasenflügel dienenden Verschlusselementen, welche an einem innerhalb der Schutzhaube befindlichen Träger angeordnet und mit Vorrichtungen zur Kraftübertragung verbunden sind, die von ausserhalb der Schutzhaube mittels eines Bedienelementes handhabbar sind.The invention relates to a protective hood with the closing of the nostril serving closure elements which are arranged on a carrier located within the protective hood and are connected to power transmission devices which can be handled from outside the protective hood by means of an operating element.

Eine Schutzhaube der oben genannten Art ist aus der DE-A-2 853 213 bekannt.A protective hood of the type mentioned above is known from DE-A-2 853 213.

Schutzhauben dieser Art werden eingesetzt in Bereichen des Atemschutzes, der Tauchtechnik, für das fliegende Personal der Luftfahrt und allgemein überall dort, wo der Gesichts- oder Kopfbereich vor dem Zutritt nicht atembarer Gase geschützt oder wo eine Atmung durch geeignete Hilfsmittel erst ermöglicht wird.Protective hoods of this type are used in areas of respiratory protection, diving technology, for flying aviation personnel and generally wherever the face or head area is protected from the ingress of non-breathable gases or where breathing is made possible by suitable aids.

Bei der bekannten Schutzhaube befindet sich ein als Halbmaske ausgebildeter Träger, an welchem durch den Nasenbereich der Haube auf jeder Seite ein Hebel schwenkbar durchgeführt ist, an dessen Ende je eine Walze befestigt ist. Aussen sind die Hebel über einen Betätigungsbügel verbunden. In Ruhestellung liegt der Betätigungsbügel herabgeklappt der Haube an, wobei die Walzen im Innenraum emporstehen. Beim Emporklappen des Betätigungsbügels rollen die Walzen auf der Innenmaske beiderseits der Nasenpartie herab und drücken über die Maske die Nasenflügel zusammen.In the known protective hood there is a carrier designed as a half mask, on which a lever is pivotably guided on each side through the nose region of the hood, to the end of which a roller is fastened. The levers are connected to the outside via an operating bracket. In the rest position, the actuating bracket lies down against the hood, the rollers standing up in the interior. When the operating bracket is folded up, the rollers on the inner mask roll down on both sides of the nose area and press the nostrils together over the mask.

Eine solche Vorrichtung zum Verschliessen der Nasenflügel ist dann sinnvoll, wenn der Träger der Schutzhaube in kurzen Zeiträumen grosse Höhendifferenzen überwinden muss.Such a device for closing the nostrils is useful if the wearer of the protective hood has to overcome large differences in height in short periods of time.

Dies ist der Fall, wenn beispielsweise Taucher in grosse Tiefen absteigen müssen. Sie ist von hohem Nutzen für Piloten, welche in grossen Höhen fliegen und über eine Maske mit Sauerstoff versorgt werden. Bei einer extremen Sinkrate muss der Pilot für einen Druckausgleich zwischen seiner Umgebung und dem inneren Gehörkanal sorgen. Ein Teil der Piloten kann diesen Druckausgleich durch Schlucken oder Bewegung mit dem Unterkiefer erzielen. Der andere Teil der Piloten kann einen solchen Druckausgleich nur dadurch herbeiführen, dass bei verschlossener Nase eine Druckänderung im Nasen-Rachenraum herbeigeführt wird. Eine solche Handhabung nennt man in der Fachsprache «Valsalva-Handgriff». Er soll zweckmässigerweise ohne eine Veränderung an der Schutzhaube von aussen durch den Piloten durchgeführt werden können. Bei der bekanntenVorrichtung erweist es sich als unvorteilhaft, dass der Pilot zur Durchführung dieser Handhabung seinen Arm in das Sichtfeld der Schutzhaube bewegen muss, wodurch sein Sichtbereich zumindest für einen kurzen, jedoch bei den hohen Fluggeschwindigkeiten nicht zu vernachlässigenden Zeitraum stark eingeschränkt wird. Zudem muss der Bügel so lange in hochgeklappter Position gelassen werden, bis der Druckausgleich durchgeführt ist. Während dieser Zeit hindertder Bügel den Piloten an der freien Durchsicht durch die Sichtscheibe zu seinen Fluginstrumenten.This is the case when, for example, divers have to descend to great depths. It is of great benefit to pilots who fly at great heights and are supplied with oxygen through a mask. In the event of an extreme rate of descent, the pilot must balance the pressure between his surroundings and the inner auditory canal. Some of the pilots can achieve this pressure equalization by swallowing or moving the lower jaw. The other part of the pilots can only bring about such pressure equalization by bringing about a pressure change in the nasopharynx when the nose is closed. Such a handling is called "Valsalva handle". It should expediently be possible for the pilot to carry it out from the outside without changing the protective hood. In the known device, it proves to be disadvantageous that the pilot has to move his arm into the field of view of the protective hood in order to carry out this handling, as a result of which his field of vision is severely restricted, at least for a short period of time, but not to be neglected at the high flight speeds. In addition, the bracket must be left in the raised position until the pressure is equalized. During this time, the stirrup prevents the pilot from having a clear view through the viewing window to his flight instruments.

Eine andere Vorrichtung zur Ausübung des «Valsalva-Handgriffs» ist aus der GB-A-2 047 545 bekannt. Dort werden zwei federnd in der Maske befestigte Druckstücke gezeigt, die durch ein unter der Nase verlaufendes flexibles Band verbunden sind. Bei aufwärtiger Verschiebung der Maske legt sich das Band an die Nase und zieht die Druckstücke seitlich zusammen. Die erforderliche Verschwenkung von Haube und Maske ist umständlich, beeinträchtigt die Dichtheit und stört in entscheidenden Augenblicken die Sicht. Darüber hinaus sind die in den Maskenraum hineinragenden Teile beim Tragen der Maske hinderlich.Another device for exercising the "Valsalva handle" is known from GB-A-2 047 545. There two pressure pieces are shown that are resiliently attached to the mask and are connected by a flexible band running under the nose. When the mask is moved upwards, the band lies against the nose and pulls the pressure pieces together laterally. The required swiveling of the hood and mask is cumbersome, impairs the tightness and disturbs the view at crucial moments. In addition, the parts protruding into the mask space are a hindrance when wearing the mask.

Die Aufgabe der Erfindung wird darin gesehen, eine Schutzhaube der genannten Art derart zu verbessern, dass die Vorrichtung zum Verschliessen der Nasenflügel ohne Beeinträchtigung des Sichtfeldes durch den Anwender von aussen derart bedienbar ist, dass dazu Manipulationen in der Nähe des Haubenraumes nicht notwendig sind.The object of the invention is seen in improving a protective hood of the type mentioned in such a way that the device for closing the nostrils can be operated from the outside without impairing the field of vision by the user in such a way that manipulations in the vicinity of the hood space are not necessary.

Die Lösung dieser Aufgabe wird dadurch erreicht, dass die Verschlusselemente als in ihrerAusdehnung veränderbare Hubelemente ausgebildet sind, die über ein in Zuführungsleitungen enthaltenes Strömungsmedium mit einem das Strömungsmedium verdrängenden Bedienelement verbunden sind.This object is achieved in that the closure elements are designed as lifting elements which are variable in their extension and which are connected via a flow medium contained in supply lines to an operating element which displaces the flow medium.

Der Vorteil der Erfindung ist darin zu sehen, dass die Vorrichtung zum Verschliessen der Nasenflügel betätigt werden kann, ohne im Sichtbereich der Schutzhaube Handgriffe durchführen zu müssen, sondern dass der Anwender allein durch Betätigung des beispielsweise als Pumpe ausgebildeten Bedienelementes den zum Verschliessen der Nasenflügel notwendigen Druck selbst bestimmen kann.The advantage of the invention can be seen in the fact that the device for closing the nostrils can be operated without having to carry out any manipulations in the field of view of the protective hood, but that the user can operate the pressure required to close the nostrils simply by actuating the control element, which is designed as a pump, for example can determine itself.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Further advantageous embodiments of the invention are characterized in the subclaims.

Insbesondere ist die Vorrichtung zum Verschliessen der Nasenflügel durch den vorteilhaften Einsatz von ausdehnbaren Kunststoffkissen ohne Schwierigkeiten jedem Gesichtsprofil eines Maskenträgers anpassbar.In particular, the device for closing the nostrils can be easily adapted to any face profile of a mask wearer due to the advantageous use of expandable plastic cushions.

Zur weiteren Erleichterung der Bedienung kann zweckmässigerweise vorgesehen sein, dass der Träger Verstelleinrichtungen für die Hubelemente aufweist, von welchen aus sievorteilhafterweise in dem die Nasenflügel abdeckenden Bereich einer Halbmaske aufliegen. Somit verteilt sich der Druck auf die Nasenflügel in vorteilhafter Weise auf eine grössere Fläche, und es werden Druckstellen im Nasenflügelbereich vermieden. Der Träger bildet dabei das Widerlager.To further facilitate operation, it can be expediently provided that the carrier has adjustment devices for the lifting elements, from which they advantageously lie in the area of a half mask covering the nostrils. The pressure on the nostrils is thus advantageously distributed over a larger area, and pressure points in the area of the nostrils are avoided. The carrier forms the abutment.

Die Verstelleinrichtungen für die Hubelemente können in weiterer Ausgestaltung der Erfindung langlochförmige Aussparungen in den Seitenteilen des Trägers sein; es kann jedoch auch eine mehrachsig verschiebbare Aufnahmevorrichtung für die Hubelemente an dem Träger angebracht sein.In a further embodiment of the invention, the adjustment devices for the lifting elements can be slot-shaped cutouts in the side parts of the carrier; however, a multi-axis displaceable receiving device for the lifting elements can also be attached to the carrier.

Ein Ausführungsbeispiel einer erfindungsgemässen Schutzhaube ist in der Zeichnung dargestellt und wird im folgenden näher erläutert.An embodiment of a protective hood according to the invention is shown in the drawing and is explained in more detail below.

Es zeigen:

  • Fig. 1 die Darstellung einer Schutzhaube mit den zum Verschliessen der Nasenflügel notwendigen Vorrichtungen,
  • Fig. 2 die Ansicht des Trägers.
Show it:
  • 1 shows a protective hood with the devices necessary for closing the nostrils,
  • Fig. 2 shows the view of the carrier.

Ein ballonförmiges Bedienelement 3 ist über ein Verbindungsstück 10, welches eine Entlüftunsbohrung 11 aufweist, mit einer Zuführungsleitung 2 verbunden. Diese zweigt an dem Y-förmigen Anschlussstück 12 in zwei Äste auf, welche mit dehnbaren Kunststoffkissen 1 im Nasenbereich der Halbmaske 5 verbunden sind.A balloon-shaped control element 3 is via a connecting piece 10, which is a vent tion 11, connected to a feed line 2. This branches on the Y-shaped connecting piece 12 into two branches, which are connected to stretchable plastic cushions 1 in the nose area of the half mask 5.

Die Kunststoffkissen 1 sind auf einer kreisförmigen Scheibe 13 befestigt und liegen mit dieser an der Innenseite eines V-förmig gebogenen Trägers 7, der den Nasenbereich der Halbmaske 5 umgibt. Die Zuführungsleitungen 2 gelangen von der Aussenseite zu den Anschlussrohren 14, welche in den Hohlraum der Kunststoffkissen 1 münden. Die gekrümmten Anschlussrohre 14 greifen durch den Träger 7 an dessen Schenkelflächen durch eine der Verstelleinrichtungen 8 in Form langlochförmiger Aussparungen hindurch.The plastic cushions 1 are fastened on a circular disk 13 and lie with this on the inside of a V-shaped support 7, which surrounds the nose area of the half mask 5. The supply lines 2 arrive from the outside to the connecting pipes 14, which open into the cavity of the plastic cushion 1. The curved connecting pipes 14 reach through the carrier 7 on its leg surfaces through one of the adjusting devices 8 in the form of elongated holes.

Die Arbeitsweise der Verschlusselemente erlaubt eine für den Anwender unkomplizierte und bequeme Handhabung der Vorrichtung. Der Benutzer drückt auf das ballonförmige Bedienelement 3, wodurch in den Zuführungsleitungen 2 und Kissen 1 ein Überdruck erzeugt wird, welcher die Kissen 1 aufbläht und gegen die Nasenflügel drückt. Der Anwender kann jetzt den Ballon 3 loslassen, und der Druck im Innenraum der Zuführungsleitungen 2 und der Kunststoffkissen 1 baut sich langsam entsprechend dem Querschnitt der Entlüftungsbohrung 11 ab. Während dieser Zeit wird es dem Benutzer ermöglicht, den Druckausgleich innerhalb seiner eustachischen Röhre herbeizuführen. Während der Druck aus der Entlüftungsbohrung 11 entweicht, ist der Innenraum des ballonförmigen Bedienelementes 3 durch ein Rückschlagventil gegenüber der Zuführungsleitung 2 geschlossen; bei Loslassen des zusammengedrückten Bedienelementes 3 wird sein Volumen über ein sich öffnendes Rückschlagventil im Einlassstutzen 4 aus der Umgebungsatmosphäre wieder aufgefüllt. Auf diese Weise ist es für den Benutzer in einfacher Weise möglich, bei eventuellem Misserfolg seiner Druckausgleichsbemühungen die Vorrichtung in kurzen Zeitabständen erneut zu betätigen.The way the locking elements work allows the device to be handled easily and conveniently for the user. The user presses on the balloon-shaped control element 3, as a result of which an overpressure is generated in the supply lines 2 and pillow 1, which inflates the pillow 1 and presses it against the nostrils. The user can now let go of the balloon 3, and the pressure in the interior of the supply lines 2 and the plastic cushion 1 slowly decreases in accordance with the cross section of the vent hole 11. During this time the user is allowed to equalize pressure within his eustachian tube. While the pressure escapes from the vent hole 11, the interior of the balloon-shaped control element 3 is closed by a check valve with respect to the feed line 2; when the compressed control element 3 is released, its volume is replenished from the ambient atmosphere via an opening check valve in the inlet connection 4. In this way, it is easily possible for the user to operate the device again in short time intervals if his pressure equalization efforts fail.

Claims (7)

1. A protective hood having occlusion elements (1 which serve to occlude the sides of the nose, which are arranged on a support (7) located inside the protective hood and which are connected with force transfer apparatus (2) which can be operated from outside the protective hood by means of an operating element (3), characterised in that the occlusion elements are constructed as movement elements (1), the expansion of which is variable and which are connected by way of a flow medium contained in supply lines (2) with an operating element (3) which displaces the flow medium.
2. A protective hood according to claim 1, characterised in that the movement elements (1) are expansible plastic cushion.
3. A protective hood according to claim 1, characterised in that the operating element (3) is a rubber- elastic hollow body which is linked by way of a connecting piece (10) to the supply lines (2), said connecting piece (10) having a vent bore hole (11).
4. A protective hood according to claim 1, characterised in that the movement elements (1) are supported on a half-mask (5) in a region thereof which covers the sides of the nose.
5. A protective hood according to claim 1, characterised in that the support (7) has adjusting means (8) for the movement elements (1).
6. A protective hood according to claim 5, characterised in that the adjusting means (8) are formed as slot-shaped cutouts.
7. A protective hood according to claim 3, characterised in that the hollow body (3) has an inlet connection piece (4) which contains a nonreturn valve and via which flow medium, which can be supplied from outside, can be introduced into the hollow body (3).
EP85110501A 1984-10-11 1985-08-21 Protective hood with occlusion elements for the sides of the nose Expired EP0183917B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3437310 1984-10-11
DE3437310A DE3437310C1 (en) 1984-10-11 1984-10-11 Protective hood with locking elements for the nostrils

Publications (2)

Publication Number Publication Date
EP0183917A1 EP0183917A1 (en) 1986-06-11
EP0183917B1 true EP0183917B1 (en) 1988-05-11

Family

ID=6247652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110501A Expired EP0183917B1 (en) 1984-10-11 1985-08-21 Protective hood with occlusion elements for the sides of the nose

Country Status (4)

Country Link
US (1) US4667667A (en)
EP (1) EP0183917B1 (en)
DE (2) DE3437310C1 (en)
DK (1) DK466485A (en)

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US4934359A (en) * 1987-09-03 1990-06-19 Hal Blaine Nasal exhaler and method
CA1285101C (en) * 1988-01-21 1991-06-25 Pierre P. Meunier Gas mask nose occluder
US5467766A (en) * 1993-10-13 1995-11-21 Gentex Corporation Valve for a pressure breathing system which accomplishes the Valsalva maneuver
US5839432A (en) * 1994-01-10 1998-11-24 Daneshvar; Yousef Face-covering hood with inner liner and vent space
US5572989A (en) * 1995-10-31 1996-11-12 Johnson Worldwide Associates Pressure equalizing mechanism for a diving mask
US5575277A (en) * 1996-01-17 1996-11-19 Johnson Worldwide Associates Equaliztion system for a diving mask
WO2001052675A2 (en) 2000-01-18 2001-07-26 Stryker Instruments Air filtration system including a helmet assembly
JP4495600B2 (en) * 2002-09-19 2010-07-07 智之 佐藤 Diving equipment
US20040211428A1 (en) * 2003-02-28 2004-10-28 Sunrise Medical Hhg Inc. Nasal mask cushion
US6990691B2 (en) * 2003-07-18 2006-01-31 Depuy Products, Inc. Head gear apparatus
CA2602821C (en) 2005-03-24 2014-05-27 Stryker Corporation Personal protection system including a helmet with a fan and duct system that direct air onto the neck of the wearer
US8234722B2 (en) * 2007-12-14 2012-08-07 Stryker Corporation Personal protection system with head unit having easy access controls and protective covering having glare avoiding face shield

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Also Published As

Publication number Publication date
DE3562558D1 (en) 1988-06-16
DK466485A (en) 1986-04-12
DK466485D0 (en) 1985-10-11
EP0183917A1 (en) 1986-06-11
DE3437310C1 (en) 1985-07-18
US4667667A (en) 1987-05-26

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