EP0027521A1 - Casque de protection pour la tête - Google Patents

Casque de protection pour la tête Download PDF

Info

Publication number
EP0027521A1
EP0027521A1 EP80105040A EP80105040A EP0027521A1 EP 0027521 A1 EP0027521 A1 EP 0027521A1 EP 80105040 A EP80105040 A EP 80105040A EP 80105040 A EP80105040 A EP 80105040A EP 0027521 A1 EP0027521 A1 EP 0027521A1
Authority
EP
European Patent Office
Prior art keywords
air
head protection
protection hood
opening
head
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
EP80105040A
Other languages
German (de)
English (en)
Other versions
EP0027521B1 (fr
Inventor
Géza Kecskeméthy
Tamás Borsos
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.)
Mueanyagipari Kutato Intezet
Muanyagipari Kutato Intezet
Original Assignee
Mueanyagipari Kutato Intezet
Muanyagipari Kutato Intezet
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 Mueanyagipari Kutato Intezet, Muanyagipari Kutato Intezet filed Critical Mueanyagipari Kutato Intezet
Publication of EP0027521A1 publication Critical patent/EP0027521A1/fr
Application granted granted Critical
Publication of EP0027521B1 publication Critical patent/EP0027521B1/fr
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
    • 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
    • A62B18/04—Gas helmets

Definitions

  • the invention relates to a head protection hood covering the entire head, which is provided with a viewing opening.
  • Fresh air breathing apparatus is used in those workplaces where the air space is contaminated to an extent that is hazardous to health.
  • the fresh air breathing apparatus or head protection hoods lead filtered and cleaned air from an external source to the mouth and nose opening of the working people.
  • an external source to the mouth and nose opening of the working people.
  • protective hoods that protect not only the respiratory system, but also the eyes. In many cases this is achieved by completely protecting the head, which is completely isolated from the environment.
  • a further disadvantage of the known head protection hoods is that it is also psychologically uncomfortable to wear, since it gives the working person the feeling of being closed off, which is unbearable for many people.
  • the invention has for its object to develop a combined breathing, eye and head protection hood, which ensures the fresh air required for inhalation, protects the entire head area against external mechanical and contaminating effects and moreover protects the eyes against gaseous or fine-grained impurities of the offers external airspace.
  • the invention is based on forming an air curtain in a head protection hood having an uncovered viewing opening in such a way that air is blown in the area and approximately in the plane of the viewing opening in the direction from the eyes to the chin of the working person.
  • this prevents the inflow of the outside contaminated air in the direction of the eyes or into the head protection hood and, on the other hand, the breathing air conveyed into the hood in the desired direction, i.e. in the zone between the respiratory system and the air curtain, led to the nose and mouth opening.
  • a head protection hood is created by the invention, in which instead of a transparent glass or plastic part in front of the eye opening an air curtain is produced from air flowing at high speed, at the same time in the interior of the head protection hood, in particular in front of the nose and Mouth opening, fresh air is always available in sufficient quantities.
  • the air curtain in front of the viewing opening is created in that the air supplied through an air supply connection is blown out through openings arranged at the upper edge of the viewing opening.
  • the openings can be designed as bores or gaps.
  • a particularly advantageous embodiment consists in forming the openings in the form of precision nozzles, which can be arranged individually adjustable in the form of ball valves on the upper edge of the viewing opening.
  • the head protection hood according to the invention can have air supply elements that partially or completely flow over the interior, for example via air supply connections, a perforated air outlet opening and a control valve that controls the amount of air.
  • a common air supply source is provided for the air forming the air curtain and for the fresh air used as breathing air, from which the air is flexible via a corresponding air preparation unit, a pressure regulator, a control valve controlling the air volume (possibly several valves) Connection lines and a Sonell connection to or into the head protection hood.
  • the head protection hood according to the invention consists of a hood covering the entire head, which is provided with a free, uncovered viewing opening.
  • Egg l "s head cover 1 is provided with a known inspection port 10 - but without the conventional showcase - adapted from Figure 1 can be seen, is arranged a continuous air duct 2 in the upper half of the protective cover 1, which in the region of the back of the head with.. ends at both ends in a connection 8 and in the area of the viewing opening 10 above it merges into a larger cross-section 3 which has the function of a distribution chamber, openings 4 are provided in the distribution chamber 3 and serve as outflow openings to form an air curtain 1, the openings 4 are designed as nozzles, but they can also be designed as vertically running gaps.
  • an organ 6 or a channel for the supply of fresh air is provided on the head protection hood 1 at the level of the nose and mouth opening, which ends with its two ends in a fresh air air line 5 running around the head protection hood 1, which in turn is located in the area of the back of the head an air connection 9 is connected.
  • a filter 7 can be inserted into the outlet opening of the channel 6 be placed, which can be covered with a perforated cover.
  • the embodiment of the head protection hood 1 shown in FIG. 2 differs from that of FIG. 1 in that the air line 2 opening into the distribution chamber 3 is coupled together with the fresh air line 5 in a common air connection.
  • FIGS. 1 and 2 Both of the embodiments shown in FIGS. 1 and 2 are expediently provided with a handle 17. Be closed - to the head guard 1 a shoulder preservatives of textile material may be from below.
  • the embodiment shown in FIG. 2 can be used, whereas if the supply air contains contaminants, this can only be used to generate the air curtain (see FIG. 1) and the fresh air line 5 with the channel 6 is connected to a special fresh air supply line.
  • connection 8 or 9 is connected via lines 18 to a control valve 13, which is fastened approximately at the waist on the back of the person wearing the head protection hood.
  • the control valve 13 is connected via an air-promoting pipe 12 to a pressure regulator 14, which in turn is connected to a filter 15.
  • FIG. 4 The part of the head protection hood 1 located above the viewing opening 10 is shown in FIG.
  • a receiving part 19 is arranged in an air outlet opening 20 and is provided with a bore 21, which is expanded in a diffuser-like manner on its part 22 pointing towards the viewing opening 10.
  • a ball 16 is inserted into the bore 21 in such a way that its boundary facing the inspection opening 10 comes to lie where the bore 21 begins to expand towards the funnel 22.
  • the ball 16 is adjustably mounted in the bore 21 and has a passage 23 which has a substantially smaller cross section than the bore 21. By adjusting the ball 16, the blow-out direction of the air flowing through the passage 23 can be adapted to the respective conditions.
  • a manually operable valve 24 can be provided in the fresh air line 5 in addition to the regulator valves 13 located at the waist, by means of which the fresh air throughput can be set or readjusted.

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)
EP19800105040 1979-09-06 1980-08-25 Casque de protection pour la tête Expired EP0027521B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUMU000621 1979-09-06
HUMU000621 HU182034B (en) 1979-09-06 1979-09-06 Combinated labour-safety helmet shield

Publications (2)

Publication Number Publication Date
EP0027521A1 true EP0027521A1 (fr) 1981-04-29
EP0027521B1 EP0027521B1 (fr) 1983-07-13

Family

ID=10999779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800105040 Expired EP0027521B1 (fr) 1979-09-06 1980-08-25 Casque de protection pour la tête

Country Status (6)

Country Link
EP (1) EP0027521B1 (fr)
JP (1) JPS56101904A (fr)
AU (1) AU6170880A (fr)
DE (1) DE3064136D1 (fr)
HU (1) HU182034B (fr)
IN (1) IN152215B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327192A (en) * 1997-07-14 1999-01-20 Christopher Raymond Close Mobile clean air supply unit
ITVR20080106A1 (it) * 2008-09-19 2010-03-20 Bruna Groppo Dispositivo di contenimento e/o di trasporto per bambini, particolarmente ma non esclusivamente, per passeggini, carrozzine, culle, seggiolini o simili
US20100294270A1 (en) * 2007-11-12 2010-11-25 Curran Desmond T Respirator Assembly with Air Flow Direction Control
US10214666B2 (en) 2013-12-04 2019-02-26 3M Innovative Properties Company Optically clear adhesives for durable plastic bonding
CN111111036A (zh) * 2020-02-27 2020-05-08 江西八纵科技有限公司 一种正压空气净化防护罩及方法
CN111544790A (zh) * 2020-04-13 2020-08-18 宁波雷奥自动化设备有限公司 一种头部防护罩
CN113058174A (zh) * 2021-04-15 2021-07-02 王德普 呼吸机
US11130008B2 (en) 2007-03-23 2021-09-28 3M Innovative Properties Company Respirator flow control apparatus and method
CN114191733A (zh) * 2021-11-29 2022-03-18 中国矿业大学 一种基于人体有效吸程区的开放式送风防尘呼吸器

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613825B4 (de) * 1996-04-06 2004-07-15 Dr.Ing.H.C. F. Porsche Ag Schutzmaske
WO2008118768A1 (fr) 2007-03-23 2008-10-02 3M Innovative Properties Company Appareil d'apport d'air pour casque respiratoire
US9868001B2 (en) 2007-10-05 2018-01-16 3M Innovative Properties Company Respirator flow control apparatus and method
AU2013200878B2 (en) * 2007-11-12 2014-10-09 3M Innovative Properties Company Respirator assembly with air flow direction control
CN102907811B (zh) * 2012-11-07 2015-12-09 中国矿业大学 一种空气幕防尘头盔及方法
JP6952230B1 (ja) * 2020-11-27 2021-10-20 有限会社ワイ・エンタープライズ エア式フェイスガード
GB2624922A (en) * 2022-11-30 2024-06-05 Dyson Technology Ltd A wearable air purifier

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE142817C (fr) *
DD15294A (fr) *
US1646103A (en) * 1927-02-16 1927-10-18 Byron O Patrick Compressed-air protective shield
DE835635C (de) * 1945-11-01 1952-04-03 Marinus Christensen An die Stirn festschnallbare Vorrichtung zum Schutze des Gesichts gegen giftige Gaseund Staub
DE917835C (de) * 1951-03-06 1954-09-13 Marianne Loenne Geb Koppers Schutzeinrichtung fuer Arbeiter, die sich in staubhaltiger Atmosphaere aufhalten
DE919863C (de) * 1951-03-06 1954-11-04 Marianne Loenne Geb Koppers Schutzeinrichtung fuer Arbeiter, die sich in staubhaltiger Atmosphaere aufhalten
FR1102541A (fr) * 1954-04-06 1955-10-24 Simca Automobiles Sa Appareils protecteurs destinés aux travaux exécutés en atmosphère nocive, poussiéreuse, etc., et notamment à la peinture au pistolet
FR1208081A (fr) * 1957-12-04 1960-02-22 Appareil respiratoire pour la protection contre les poussières
FR1314109A (fr) * 1962-01-03 1963-01-04 Dunlop Rubber Co Dispositif de protection du visage
FR2106753A5 (fr) * 1970-09-23 1972-05-05 Spirotechnique

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE142817C (fr) *
DD15294A (fr) *
US1646103A (en) * 1927-02-16 1927-10-18 Byron O Patrick Compressed-air protective shield
DE835635C (de) * 1945-11-01 1952-04-03 Marinus Christensen An die Stirn festschnallbare Vorrichtung zum Schutze des Gesichts gegen giftige Gaseund Staub
DE917835C (de) * 1951-03-06 1954-09-13 Marianne Loenne Geb Koppers Schutzeinrichtung fuer Arbeiter, die sich in staubhaltiger Atmosphaere aufhalten
DE919863C (de) * 1951-03-06 1954-11-04 Marianne Loenne Geb Koppers Schutzeinrichtung fuer Arbeiter, die sich in staubhaltiger Atmosphaere aufhalten
FR1102541A (fr) * 1954-04-06 1955-10-24 Simca Automobiles Sa Appareils protecteurs destinés aux travaux exécutés en atmosphère nocive, poussiéreuse, etc., et notamment à la peinture au pistolet
FR1208081A (fr) * 1957-12-04 1960-02-22 Appareil respiratoire pour la protection contre les poussières
FR1314109A (fr) * 1962-01-03 1963-01-04 Dunlop Rubber Co Dispositif de protection du visage
FR2106753A5 (fr) * 1970-09-23 1972-05-05 Spirotechnique

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327192B (en) * 1997-07-14 2001-08-29 Christopher Raymond Close Mobile clean air supply unit
GB2327192A (en) * 1997-07-14 1999-01-20 Christopher Raymond Close Mobile clean air supply unit
US11130008B2 (en) 2007-03-23 2021-09-28 3M Innovative Properties Company Respirator flow control apparatus and method
US20100294270A1 (en) * 2007-11-12 2010-11-25 Curran Desmond T Respirator Assembly with Air Flow Direction Control
EP2217333B1 (fr) * 2007-11-12 2019-02-27 3M Innovative Properties Company Ensemble respirateur avec contrôle de la direction d'écoulement de l'air
US10391337B2 (en) 2007-11-12 2019-08-27 3M Innovative Properties Company Respirator assembly with air flow direction control
ITVR20080106A1 (it) * 2008-09-19 2010-03-20 Bruna Groppo Dispositivo di contenimento e/o di trasporto per bambini, particolarmente ma non esclusivamente, per passeggini, carrozzine, culle, seggiolini o simili
WO2010031846A2 (fr) * 2008-09-19 2010-03-25 Bruna Groppo Dispositif de confinement et/ou de transport pour enfants, en particulier mais non exclusivement pour poussettes, landaus, berceaux, sièges pour nourrissons et analogues
WO2010031846A3 (fr) * 2008-09-19 2010-06-24 Bruna Groppo Dispositif de confinement et/ou de transport pour enfants, en particulier mais non exclusivement pour poussettes, landaus, berceaux, sièges pour nourrissons et analogues
US10214666B2 (en) 2013-12-04 2019-02-26 3M Innovative Properties Company Optically clear adhesives for durable plastic bonding
CN111111036A (zh) * 2020-02-27 2020-05-08 江西八纵科技有限公司 一种正压空气净化防护罩及方法
CN111544790A (zh) * 2020-04-13 2020-08-18 宁波雷奥自动化设备有限公司 一种头部防护罩
CN113058174A (zh) * 2021-04-15 2021-07-02 王德普 呼吸机
CN114191733A (zh) * 2021-11-29 2022-03-18 中国矿业大学 一种基于人体有效吸程区的开放式送风防尘呼吸器
CN114191733B (zh) * 2021-11-29 2022-10-14 中国矿业大学 一种基于人体有效吸程区的开放式送风防尘呼吸器

Also Published As

Publication number Publication date
DE3064136D1 (en) 1983-08-18
EP0027521B1 (fr) 1983-07-13
IN152215B (fr) 1983-11-19
AU6170880A (en) 1981-03-12
JPS56101904A (en) 1981-08-14
HU182034B (en) 1983-12-28

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