EP0192650B1 - Kopfband für atemschutzgerät - Google Patents

Kopfband für atemschutzgerät Download PDF

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Publication number
EP0192650B1
EP0192650B1 EP19850903763 EP85903763A EP0192650B1 EP 0192650 B1 EP0192650 B1 EP 0192650B1 EP 19850903763 EP19850903763 EP 19850903763 EP 85903763 A EP85903763 A EP 85903763A EP 0192650 B1 EP0192650 B1 EP 0192650B1
Authority
EP
European Patent Office
Prior art keywords
respirator
loop
wearer
strap
harness assembly
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
EP19850903763
Other languages
English (en)
French (fr)
Other versions
EP0192650A1 (de
Inventor
Harold J. Seppala
Alex A. Wawiluk
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of EP0192650A1 publication Critical patent/EP0192650A1/de
Application granted granted Critical
Publication of EP0192650B1 publication Critical patent/EP0192650B1/de
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • A41D13/1146—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1161—Means for fastening to the user's head
    • 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

Definitions

  • the present invention relates to a harness assembly for disposable respirators and more particularly to a respirator harness assembly having an open light-weight elastic loop with a single point connector means which enables the respirator to be easily and quickly applied, and provides for temporary off the face "storage" of the respirator during period of non-use.
  • the harness assembly is essentially self-adjusting to provide adequate tension and an even distribution of pressure over the entire area of the respirator in contact with the face during use.
  • These respirator harness assemblies have tended to be rather heavy and cumbersome devices consisting of a plurality of heavy duty elastic or rubber straps, buckles, slides and fastening devices.
  • a number of such harness assemblies have been provided with snap-on fasteners consisting of a D-ring and a flat folded clip or similar device for connecting the two ends of the headband together.
  • the respirator is secured in place by passing the straps over the user's head and then arranging the straps so that one strap is below the ears and the other strap is above the ears.
  • the elastic straps may then be adjusted to obtain a fit against the user's face by evenly distributing pressure over the entire area of the respirator in contact with the face.
  • the present invention relates to a respirator harness assembly for disposable respirators having an open light-weight elastic loop with a single point connector means which enables the respirator to be easily and quickly applied by a worker - even by a worker wearing heavy work- gloves, and also provides temporary off the face storage of the respirator during periods of non-use.
  • the harness assembly is essentially self-adjusting to provide adequate tension and an even distribution of pressure over the entire area of the respirator in contact with the face, said harness assembly comprising elastic loop supports along each side edge of the respirator, and an open light-weight elastic loop with a single point connector means, extending between said loop supports.
  • the two free ends of the open elastic loop are each provided with a coacting connector element which interconnect to close the elastic loop.
  • the harness assembly permits the respirator to be applied by simply grasping the connector element on each of the free ends of the elastic loop and passing the loop ends around the back of the user's head and interconnecting the connector elements.
  • the thus closed elastic loop thereby provides the functional equivalent of a pair of elastic straps which have been considered to be necessary to gain approval by NIOSH and MSHA.
  • the elastic nature of the loop and the ability of the loop to slide freely through the support means provide the self-adjusting feature to the harness and thus provide adequate tension and an even distribution of pressure about the periphery of the respirator. Removal of the respirator is accomplished by reversing the above procedure.
  • the invention is as defined in the accompanying Claim 1.
  • respirator 10 is representative of disposable dust/mist and dust/mist/fume respirators comprised of a light, porous, fibrous fabric having a rounded cupped shape. It is large enough to fit over the nose, mouth and chin in a non-constricting spaced-away manner, and can be conformed to make a snug marginal fit such that breathing causes substantially all of the air to pass in and out through the porous fabric structure.
  • a thin pliable metal strip 11 may be provided at the upper central peripheral edge of the respirator to aid in conforming the respirator over the nose of the wearer.
  • light- weight elastic loop 15 is an open elastic loop which is threaded through apertures 22 and 23, spaced about 1.75 inches (4.5 cm) apart, provided in tab 21 of elastic loop support means 20 and through apertures 32 and 33 provided in tab 31 of elastic loop support means 30.
  • Elastic loop 15 is preferably a light-weight braided elasticized fabric about 0.25 inch (0.63 cm) wide but can be formed of a rubber or elastic polymeric material, as is well known in the art. The degree of elasticity of elastic loops 15 dictates the actual length thereof. If has been found that for the braided elasticized fabric described above and illustrated in Figures 1 and 2, a length of about 26 inches (66 cm) provides a snug fit of the respirator to the user's face. In the embodiment illustrated in Figures 3 and 4, the braided elasticized fabric had a length of 48 inches (122 cm).
  • elastic loop support means 20 and 30 comprise rectangular tabs 21 and 31, measuring about 0.5 inch x 2.5 inches (1.3 cm x 6.4 cm), conveniently formed as extensions of the respirator during the respirator molding procedure.
  • the elastic loop support means 40 illustrated in Figure 5, comprises a generally lunate base 41 shaped to conform to the curvature of the body of respirator 10.
  • a central rectangular recess 43 is provided in each flange 42 for a purpose to be described.
  • At the outer end of recess 43 and extending upwardly from the terminus of each flange 42 is a U-shaped member 44.
  • Elastic loop support means 40 is formed of polypropylene by injection molding. As shown in Figure 5, elastic loop support means 40 is adhesively or otherwise bonded along each side edge of respirator 10. If desired, the bottom surface of base 41 may be provided with a series of short pin-like projections or may be otherwise textured to provide a more secure adhesive bond. An elastic loop 15, separately fabricated with a coacting connector member 18 and 19 on each end thereof, can then be threaded into elastic loop support means 40 by simply pressing a portion of elastic loop 15 against the free end 45 of U-shaped member 44.
  • the rectangular recess 43 permits free end 45 of U-shaped member 44 to slide in said recess and the elastic natue of U-shaped member 44 permits the free end 45 to be slightly upwardly distorted so that elastic loop 15 can be received within the legs of the U.
  • elastic loop support means 70 and 80 are identically formed and comprise a rectangular tab 90 about 1 inch x 1.75 inches of a flexible fabric fastener of the hook and loop type described in U.S. Patent No. 3,009,235.
  • tab 90 may be varied as desired.
  • hook and loop type fastener includes those fasteners wherein the hook structures or the loop structures have been modified to form the so-called hook and pile fastener and the mushroom and pile fastener.
  • tab 90 comprises a flexible fabric backing 91 with a loop portion 92 along one end thereof, a clear central portion 93 adjoining the loop portion and a hook portion 94 along the other end thereof, each portion comprising approximately one-third of the tab.
  • Tabs 90 may be attached to the respirator in the positions shown in Fig. 7 by sewing, sonic welding or with an adhesive. The width of the tab 90 serves to separate the elastic loop 15 to effectively provide two elastic straps secured at spaced points on the opposite side edges of the respirator.
  • elastic loop 15 is placed onto the clear central portion 93 of tab 90 and the free end of tab 90 is brought into juxtaposition with the other (attached) end of the tab. The hooks will then engage the loops and slidingly hold elastic loop 15 in the clear central portion 93.
  • Tabs 90 will then operate as the elastic loop support means 70 and 80.
  • Tabs 90 can be similarly used in place of elastic loop support means 40.
  • the free ends 16, 17 of elastic loop 15 are each provided with a coacting connector element 18, 19.
  • one connector element 18 is a ring having an inner diameter about H inches (3.5 cm) and the other connector element 19 is a ball having a diameter fractionally less than the inner diameter of the ring such that it will pass through the ring.
  • the free ends 16, 17 of elastic loop 15 are each provided with a coacting hook and loop fastener connector element 58, 59 (see U.S. Patent 3,009,235).
  • Connector element 58 comprising a hook fastener measuring about 1.75 inches (4.5 cm) x 0.75 inch (1.9 cm) is secured, as by sewing, to elastic loop 15 about 2.5 inches (6.4 cm) from its end thereby forming a tab 60 of elastic material extending beyond connector element 58.
  • Connector element 59 comprising a loop fastener having equivalent dimensions to connector element 58 is similarly secured as by sewing, to the end of elastic loop 15.
  • the respirator harness assembly illustrated in Figures 3 and 4, wherein elastic loop 15 is a doubled open loop, is particularly suited for heavier respirators.
  • the harness assembly provides four straps which girdle the user's head as shown in Figure 3, but is otherwise identical in operation and function to the harness assembly shown in Figures 1 and 2.
  • the harness assembly of the present invention makes it extremely simple for a worker to don a respirator even while wearing a hard hat due to the longer "effective length" of elastic loop 15.
  • elastic loop 15 can be pulled upwardly until connector elements 18 and 19 are adjacent apertures 23 and 33, respectively. In this manner, the portion of elastic loop 15 extending outwardly between apertures 22 and 32 is lengthened. Elastic loop 15 can then be easily passed over the worker's head, including the hard hat, and allowed to hang around the worker's neck in the manner of a necklace. At this point, respirator 10 would be lying against the worker's upper chest immediately below the neck in a temporary storage position (see Figure 6).
  • connector element 18 To wearthe respirator, the worker places his left hand over connector element 18 while at the same time grasping the lower portion of tab 21 between the thumb and forefinger. At the same time, connector element 19 and the lower portion of tab 31 is similarly grasped with the right hand. Respirator 10 is then placed over the worker's nose, mouth and chin, tabs 21 and 31 are released and with connector elements 18 and 19 firmly grasped in the left and right hands, respectively, the connector elements and the free ends 16 and 17 of elastic loop 15 are pulled apart and passed around the back of the worker's head and the connector elements 18, 19 are then interconnected. In the embodiments illustrated in Figures 1 through 4, interconnection of connector elements 18 and 19 is simply accomplished by passing connector element 19, the ball, through connector element 18, the ring.
  • respirator 10 Removal of respirator 10 is accomplished by simply disconnecting the connector elements 18 and 19 and lightly grasping the respirator at tabs 21 and 31 and bringing the respirator down to a position against the worker's upper chest.
  • the respirator 10 can be "stored” in this off the face position as illustrated in Figure 6 during periods of non-use when the worker is not exposed to hazardous atmospheres.
  • respirator 10 is also applied in the aforementioned manner, interconnection of connector elements 58 and 59 being accomplished by merely superimposing connector element 58 and connector element 59 with their "active" surfaces in contact. Removal of respirator 10 can be accomplished with one hand by grasping tab 60 and pulling until connector elements 58 and 59 become disengaged. Respirator 10 can then be placed in the temporary storage position, again with one hand.
  • connector elements 18, 19 and 58, 59 may take various other forms such as snaps, magnetic fasteners, friction connectors, etc.
  • respirator harness assembly has been described in relation to a rounded cupped shape single-use respirator, it will be immediately apparent that the harness assembly can be used on other disposable masks and respirators such as flat folded respirators, lightweight dust masks, clean room masks, surgical masks etc., and such uses are contemplated. It is also understood that other variations and modifications of the illustrative embodiments described herein will become evident to those skilled in the art without departing from the spirit and scope of the invention.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Pulmonology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Claims (8)

1. Gurtzeug zum Anbringen an einem in Anpassung an ein Gesicht formgepreßten Atemgerät (10), das geeignet ist, über dem Mund, und der Nase eines menschlichen Trägers getragen zu werden, wobei das Gurtzeug eine vorübergehende Lagerung des von dem Gesicht abgenommenen Atemgeräts und nach de vorübergehenden Lagerung des von dem Gesicht von abgenommenen Atemgeräts ein Wiederaufsetzen desselben über dem Mund und der Nase des Trägers gestattet, ohne daß das Atemgerät (10) oder das Gurtzeug über den Kopf des Trägers geführt werden, mit
einem elastischen Gurt (15), der so lang ist, daß er um den Kopf des Trägers zweimal unter Bildung einer ersten Schleife und einer zweiten Schleife herumgelegt werden kann, die jeweils von dem Atemgerät (10) um dem Kopf des Trägers herum wieder zu dem Atemgerät (10) führt, wobei der Gurt (15) in der ersten oder der zweiten Schleife unter Bildung von zwei Gurtenden unterbrochen ist;
einem Verbinder mit zwei miteinander zusammenwirkenden Verbinderteilen (18,19) und (58, 59), die an je einem der beiden Gurtenden angebracht und die im Querschnitt beträchtlich größer sind als der Gurt und die die beiden Gurtenden lösbar miteinander verbinden,
zwei Gurtanschlußmittel (22, 23, 32, 33, 44, 80, 90), die bei getragenem Atemgerät (10) auf je einer Längsseite des Atemgeräts (10) angeordnet sind und die geeignet sind, den Gurt (15) gleitend aufzunehmen und einen freien Durchtritt des Gurtes (15), aber keinen Durchtritt der Verbinderteile (18, 19, 58, 59) ermöglichen,
wobei, wenn sich das Atemgerät (10) auf dem Gesicht des Trägers befindet und die Verbinderteile (18, 19, 59, 58) untereinander verbunden sind, der Gurt (15) unter Bildung der ersten Schleife von einem der Anschlußmittel (22, 23, 32, 33, 44, 80, 90) um den Kopf des Trägers herum zu dem andern der Befestigungsmittel (22,23,32,33, 44, 80, 90) führt und unter Bildung der zweiten Schleife von dem einen der Anschlußmittel (22, 23, 32, 33, 44, 80, 90) um den Kopf des Trägers herum zu dem andern der Anschlußmittel (22, 23, 32, 33, 44, 80, 90) führt; und
wobei, wenn die Verbinderteile (18, 19, 58, 59) nicht miteinander verbunden sind, die erste Schleife vergrößert werden kann, indem der Gurt (15) durch die beiden Anschlußmittel (22, 23, 32, 33, 44, 80, 90) hindurch bewegt wird, bis die Verbinderteile (18, 19, 58, 59) an den Anschlußmitteln (22, 23, 32, 33, 44, 80, 90) angreifen, so daß das Atemgerät von dem Gesicht des Trägers abgenommen und mit der ersten Schleife am Hals des Trägers aufgehängt werden kann.
2. Gurtzeug nach Anspruch 1, dadurch gekennzeichnet, daß die Anschlußmittel mindestens ein das Atemgrät auf jeder Längsseite durchsetzendes Loch (22, 23, 32, 33) aufweisen.
3. Gurtzeug nach Anspruch 2, dadurch gekennzeichnet, daß die Anschlußmittel auf jeder Längsseite des Atemgeräts (10) zwei dieses durchsetzende Löcher (22, 23, 32, 33) aufweisen, die vertikal miteinander fluchten, wenn das Atemgerät (10) getragen wird.
4. Gurtzeug nach Anspruch 1, dadurch gekennzeichnet, daß die Anschlußmittel auf jeder Längsseite des Atemgeräts (10) einen mit diesem verbundenen Lappen (42) aufweisen, von dem sich ein U-förmiger Teil (44) erstreckt, der zusammen mit dem Lappen (42) eine Öffnung zur gleitenden Aufnahme des Gurtes (15) bildet.
5. Gurtzeug nach Anspruch 4, dadurch gekennzeichnet, daß die Anschlußmittel auf jeder Längsseite des Atemgeräts (10) mindestens eine aus einem Haken und einer Öse bestehende Schließe (80, 90) aufweisen, die einen langgestreckten Träger (91) besitzt, der an seinem einen Ende an dem Atemgerät (10) befestigt ist, sowie Hakengebilde (94), die sich von einem Ende des Trägers (91) erstrecken, Ösengebilde (92), die sich vom anderen Ende des Trägers (91) erstrecken, sowie einen zwischen den Hakengebilden (94) und den Ösengebilden (92) angeordneten, von den Hakengebilden (94) oder den Ösengebilden (92) freien Teil (93), wobei der Träger (91) derart auslenkbar ist, daß die Hakengebilde (94) mit den Ösengebilden (92) verbindbar sind und in dem freien Bereich (93) eine Öffnung zur gleitenden Aufnahme des Gurtes (15) entsteht.
6. Gurtzeug nach Anspruch 1, dadurch gekennzeichnet, daß der eine der Verbinderteile ein an einem der Gurtenden befestigter Ring (18) und der andere der Verbinderteile eine an dem andern der Gurtenden befestigte Kugel (19), ist, deren Durchmesser um einen Bruchteil kleiner ist als der des Ringes (18).
7. Gurtzeug nach Anspruch 1, dadurch gekennzeichnet, daß einer der Verbinderteile ein an dem einen der Gurtenden angebrachter Haken und der andere der Verbinderteile eine an dem andern der Gurtenden angebrachte Öse ist.
8. Gurtanordnung nach Anspruch 1, dadurch gekennzeichnet, dai Anschlußmittel auf jeder Längsseite des Atemgeräts (10) eine sich von diesem erstreckende Öffnung (44) bilden, die bei getragenem Atemgerät (10) vertikal orientiert ist, daß sich der Gurt (15) durch jede dieser Öffnungen (44) und von ihr aufwärts unter Bildung der ersten Schleife um den Kopf des Trägers herum erstreckt und von ihr abwärts unter Bildung der zweiten Schleife um den Kopf des Trägers erstreckt, daß die zweite Schleife derart unterbrochen ist, daß, wenn die Verbinderteile (18,19, 59, 58) nicht miteinander verbunden sind und der Gurt (15) durch die Öffnungen (44) bewegt wird, bis die Verbinderteile (18, 19, 58, 59) an den Öffnungen (44) angreifen, das Atemgerät (10) am Hals des Trägers herunterhängt, wenn es vorübergehend vom Gesicht entfernt gelagert wird und dabei jene Seite des Atemgeräts (10), die bei getragenem Atemgerät (10) dem Mund des Trägers zugekehrt ist, jetzt dem Brustkorb des Trägers benachbart ist.
EP19850903763 1984-09-13 1985-07-19 Kopfband für atemschutzgerät Expired EP0192650B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US65016884A 1984-09-13 1984-09-13
US650168 1984-09-13
US74457685A 1985-06-14 1985-06-14
US744576 1996-11-06

Publications (2)

Publication Number Publication Date
EP0192650A1 EP0192650A1 (de) 1986-09-03
EP0192650B1 true EP0192650B1 (de) 1989-12-20

Family

ID=27095787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850903763 Expired EP0192650B1 (de) 1984-09-13 1985-07-19 Kopfband für atemschutzgerät

Country Status (5)

Country Link
EP (1) EP0192650B1 (de)
AU (1) AU582781B2 (de)
BR (1) BR8506921A (de)
DE (1) DE3574814D1 (de)
WO (1) WO1986001693A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102221198B1 (ko) * 2020-09-28 2021-02-26 엄성길 착용끈의 길이조절이 가능한 안면 마스크

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5464010A (en) 1993-09-15 1995-11-07 Minnesota Mining And Manufacturing Company Convenient "drop-down" respirator harness structure and method of use

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3013556A (en) * 1959-08-07 1961-12-19 Jr Ellis A Galleher Head strap for respiratory masks
US3779244A (en) * 1971-02-03 1973-12-18 Johns Manville Disposable face respirator
GB2014059B (en) * 1978-01-20 1982-09-02 Martindale Protection Ltd Dust respirator
DE2938720C2 (de) * 1979-09-25 1982-05-19 Drägerwerk AG, 2400 Lübeck Atemhalbmaske für den Einmalgebrauch
GB2092009A (en) * 1981-01-30 1982-08-11 Khan & Co Luton Ltd Face masks and kits therefor
DE3204060A1 (de) * 1982-02-06 1983-08-25 Drägerwerk AG, 2400 Lübeck Atemhalbmaske fuer den einmalgebrauch
AU4600685A (en) * 1984-09-13 1986-04-08 Minnesota Mining And Manufacturing Company Respirator harness assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102221198B1 (ko) * 2020-09-28 2021-02-26 엄성길 착용끈의 길이조절이 가능한 안면 마스크

Also Published As

Publication number Publication date
BR8506921A (pt) 1986-12-09
EP0192650A1 (de) 1986-09-03
AU4631985A (en) 1986-04-08
WO1986001693A1 (en) 1986-03-27
AU582781B2 (en) 1989-04-13
DE3574814D1 (de) 1990-01-25

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