EP3360603A1 - Support de filtre pour une masque facial permettant monture de filtre permettant de monterdes types de filtres filets et bayonet sur le support de filtre - Google Patents

Support de filtre pour une masque facial permettant monture de filtre permettant de monterdes types de filtres filets et bayonet sur le support de filtre Download PDF

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Publication number
EP3360603A1
EP3360603A1 EP18156012.9A EP18156012A EP3360603A1 EP 3360603 A1 EP3360603 A1 EP 3360603A1 EP 18156012 A EP18156012 A EP 18156012A EP 3360603 A1 EP3360603 A1 EP 3360603A1
Authority
EP
European Patent Office
Prior art keywords
filter
connection
facemask
nbc
mouth
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.)
Withdrawn
Application number
EP18156012.9A
Other languages
German (de)
English (en)
Inventor
Giuseppe Galli
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.)
Officine Meccaniche Galli Srl
Original Assignee
Officine Meccaniche Galli Srl
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 Officine Meccaniche Galli Srl filed Critical Officine Meccaniche Galli Srl
Publication of EP3360603A1 publication Critical patent/EP3360603A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators

Definitions

  • the present invention relates to the field of anti-NBC protection and masks used to this end, with particular reference to a facemask and anti-NBC filter provided with a connector, allowing the user to fix to the facemask itself, not only filters provided with thread, such as the standard NATO one, by traditional screwing, but also innovative filters, combined therewith, by means of a bayonet coupling and quick hooking and unhooking means, so as to reduce the intervention times and assist the related operations.
  • a bayonet connection is a type of round connection consisting of two or more equidistant flaps (spokes) arranged on a cylindrical piece, locked in a slot, which is also cylindrical, in which spaces of convenient dimensions are obtained. After insertion, the piece locks when it is rotated by a certain angle.
  • a connection of this type was studied to find specific use in recent anti-NBC masks provided with filter connectors on both sides of the facemask, in other words, in two operative positions, which are mutually angularly offset, and decentralized with respect to the vertical axis of symmetry of the facemask itself, introduced to assist operation of those wearing them, as they allow the right side or left side of the facemask to be left completely free.
  • the filter was screwed centrally onto the body of the pipe joint of the facemask, so that the axis of the filter lays on the vertical plane of symmetry of the same facemask, so the filter formed a considerable hindrance to the user, considering its dimensions and position.
  • the filter took up a firearm to take aim and, if necessary, shoot.
  • said first means consist of two or more equidistant flaps (spokes), arranged on the outer surface of a cylindrical sleeve, which protrudes from the surface of the quick coupling connection, facing outwards, and which, on insertion into the hole intended for the insertion of the connection on an anti-NBC facemask, is locked inside a cooperating mouth, protruding from a face of the filter with associated quick coupling, which is to be assembled: for this purpose, grooves with arc of a circle are made on the inner face of said mouth, where said flaps are guided and locked, when the filter is rotated by a certain angle, after insertion.
  • spokes equidistant flaps
  • Said second means are represented by a thread, like the standard NATO one, made in the inner surface of said cylindrical sleeve, allowing the screwing of the mouth of a traditional filter commercially available at present, and a stop ring, inside the cylindrical piece itself, which represents the screwing limit stop of the mouth itself.
  • Said third means consist of a cylindrical sleeve on which a thread is obtained for the ferrule for fixing to the facemask, which protrudes from the surface facing the interior of the facemask.
  • Said fourth means consist of a pair of grooves with arc of a circle, each terminating in a receiving space, obtained on the face of the associated quick coupling filter from which the mouth protrudes, and a tooth capable of sliding in said groove and penetrating said spaces, activated by a spring with a contrasting release button, which, arranged in the part of the connection adjacent to said cylindrical sleeve, allows said tooth to be lowered, releasing it from the slot in which it slides, thus disengaging the filter with just one movement.
  • a first advantage achieved by the present invention is a quicker and more efficient system of coupling an NBC filter to a facemask.
  • a second advantage is that said innovative coupling system nonetheless allows all of the commercially available traditional filters to be assembled by screwing, such as those with standard NATO thread.
  • a third advantage is that the accidental detachment of the filter provided with quick coupling is prevented by the presence of a manually controlled safety system, which can be deactivated by only one release button.
  • a fourth advantage is that said connector for connecting to the filter is capable of containing a movable unit therein, which does not form the subject of the invention, which allows the anti-NBC filter to be replaced safely, preventing the outside air from entering the facemask when the filter is removed from the mouth of the facemask.
  • a device according to the invention comprising a quick coupling connector 2 between an NBC mask 4 and a filter associated therewith 6, conveniently provided with cooperating means.
  • Said quick coupling connection is in the form of a molded base 8 made of rigid material designed for fixing to the interior of the mask consisting of a facemask, covering the user's face, made of resilient, rubbery material, associated with means for putting it on the user's head.
  • a facemask 4 has three openings, of which a central one 10 designed for letting out air, and the other two 12 and 14 for letting in air, symmetrically arranged with respect to the first, below a clear eye surface 16 made of rigid material.
  • the base 8 has rounded corners and a width, decreasing progressively from one end, in which a cylindrical sleeve 18 with outer thread 19 protrudes from the face facing inward I, to the other end, in which, instead, a hollow cylindrical body 20 with a notably smaller diameter, protrudes, again from the face facing the interior of the facemask.
  • said rigid molded base 8 has a raised edge 30 along the whole perimeter thereof, a cylindrical sleeve 32 protruding from the interior thereof and bearing at least two flaps 44 for a bayonet coupling, and a button 39, which commands the release of a ratchet 38 by overcoming the bias of a contrasting spring 45, thus preventing accidental disengagements.
  • the sleeve 18 On assembly, the sleeve 18 is inserted, to measure, inside one of the holes 12 and 14 of the facemask 4 and airtightly sealed along the edges of the same holes with the aid of a metal washer and hermetic seals (not shown) by a ferrule, which is screwed onto its outer thread 26.
  • the body 20 is received instead by a recess 28 of the facemask 4 obtained by molding, without the need for further holes in the material.
  • the face facing outwards E has a small edge 30, which protrudes along the entire perimeter of the base 8, and connects to a portion of inner round wall, coaxially surrounding a short sleeve 32, at the widest end of the same base 8, provided with an inner thread 33, for example, a thread according to the NATO standard, defining an annular slot 34, on which the mouth 36 of the associated filter 6 is inserted.
  • the mouth 36 is provided ( fig.8 ) with a thread 40 on its outer face, while on its inner face, it has a pair of spaces, or slots 42, with an arc of a circle.
  • the sleeve 32 of the base 8 contains a pair of diametrically opposite flaps with an arc of a circle, which, after introducing the mouth 36 of the filter 6 into the annular slot 34, are inserted into said slots 42, when the filter is rotated by a certain angle.
  • a pair of grooves with an arc of a circle are obtained on the face of the associated quick coupling filter 6, from which the mouth 36 protrudes 36, each terminating in a receiving space, inside which a tooth 38, activated by a spring 35, arranged in a space 33 inside the cylindrical body 20, in the part of the connection 2 adjacent to said cylindrical sleeve 32, is able to slide and penetrate said spaces.
  • a tooth 38 activated by a spring 35, arranged in a space 33 inside the cylindrical body 20, in the part of the connection 2 adjacent to said cylindrical sleeve 32, is able to slide and penetrate said spaces.
  • the interior of the sleeve 18 and the sleeve 32 form a housing for a movable unit, comprising known means, which do not form the subject of the invention, capable of airtightly sealing the inlet of the air in the facemask when the filter is removed from the connection itself, blocking the inhalation valve 48.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP18156012.9A 2017-02-09 2018-02-09 Support de filtre pour une masque facial permettant monture de filtre permettant de monterdes types de filtres filets et bayonet sur le support de filtre Withdrawn EP3360603A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT201700014564 2017-02-09

Publications (1)

Publication Number Publication Date
EP3360603A1 true EP3360603A1 (fr) 2018-08-15

Family

ID=59297202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18156012.9A Withdrawn EP3360603A1 (fr) 2017-02-09 2018-02-09 Support de filtre pour une masque facial permettant monture de filtre permettant de monterdes types de filtres filets et bayonet sur le support de filtre

Country Status (1)

Country Link
EP (1) EP3360603A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE629801C (de) * 1932-03-25 1936-05-12 Draegerwerk Heinr U Bernh Drae Filteranschlussstueck fuer Gasschutzmasken
EP1685877A1 (fr) * 2005-01-27 2006-08-02 Ultra Electronics Audiopack, Inc. Assemblée pour monter un dispositif à un masque
WO2009066833A1 (fr) * 2007-11-23 2009-05-28 Sancheong Co., Ltd. Unité respiratoire pour masques à gaz et dispositif d'autoblocage/déblocage pour une cartouche de respirateur montée sur celle-ci
KR101524217B1 (ko) * 2014-12-16 2015-05-29 삼공물산 주식회사 공기흐름전환 방독면
US20160074683A1 (en) * 2013-04-25 2016-03-17 Airboss Engineered Products Inc. Respirator mask for cbrn or other protection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE629801C (de) * 1932-03-25 1936-05-12 Draegerwerk Heinr U Bernh Drae Filteranschlussstueck fuer Gasschutzmasken
EP1685877A1 (fr) * 2005-01-27 2006-08-02 Ultra Electronics Audiopack, Inc. Assemblée pour monter un dispositif à un masque
WO2009066833A1 (fr) * 2007-11-23 2009-05-28 Sancheong Co., Ltd. Unité respiratoire pour masques à gaz et dispositif d'autoblocage/déblocage pour une cartouche de respirateur montée sur celle-ci
US20160074683A1 (en) * 2013-04-25 2016-03-17 Airboss Engineered Products Inc. Respirator mask for cbrn or other protection
KR101524217B1 (ko) * 2014-12-16 2015-05-29 삼공물산 주식회사 공기흐름전환 방독면

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