EP3205223B1 - Respirateur casque integral de protection avalanche - Google Patents

Respirateur casque integral de protection avalanche Download PDF

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Publication number
EP3205223B1
EP3205223B1 EP17155318.3A EP17155318A EP3205223B1 EP 3205223 B1 EP3205223 B1 EP 3205223B1 EP 17155318 A EP17155318 A EP 17155318A EP 3205223 B1 EP3205223 B1 EP 3205223B1
Authority
EP
European Patent Office
Prior art keywords
helmet
avalanche
respiratory protection
air
oxygen
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.)
Active
Application number
EP17155318.3A
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German (de)
English (en)
Other versions
EP3205223A1 (fr
Inventor
Georg Schmid
Walter Heckmann
Roland Rieker
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Individual
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Publication of EP3205223A1 publication Critical patent/EP3205223A1/fr
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Classifications

    • AHUMAN NECESSITIES
    • A42HEADWEAR
    • A42BHATS; HEAD COVERINGS
    • A42B3/00Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04Parts, details or accessories of helmets
    • A42B3/28Ventilating arrangements
    • AHUMAN NECESSITIES
    • A42HEADWEAR
    • A42BHATS; HEAD COVERINGS
    • A42B3/00Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04Parts, details or accessories of helmets
    • A42B3/0406Accessories for helmets
    • AHUMAN NECESSITIES
    • A42HEADWEAR
    • A42BHATS; HEAD COVERINGS
    • A42B3/00Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04Parts, details or accessories of helmets
    • A42B3/18Face protection devices
    • A42B3/22Visors
    • A42B3/221Attaching visors to helmet shells, e.g. on motorcycle helmets
    • A42B3/222Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge devices
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing 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
    • A62B18/04Gas helmets
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B33/00Devices for allowing seemingly-dead persons to escape or draw attention; Breathing apparatus for accidentally buried persons
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00Respiratory apparatus
    • A62B7/02Respiratory apparatus with compressed oxygen or air

Definitions

  • the subject matter of the invention is an integral avalanche protective helmet, in particular for use by winter sports enthusiasts in free alpine terrain.
  • the invention relates to such a helmet with a supply of fresh air or oxygen in the helmet and for discharging at least a portion of the breathed air to the outside.
  • Avalanches with massive injuries or fatalities are still a great danger for winter sports enthusiasts traveling in free alpine terrain. Suffocating is the most common cause of death compared to other injuries.
  • the protective helmets which have been developed especially for skiers and snowboarders, protect the head (ie, forehead, temples, crest and occipital bone) in accidents, and thus can usually prevent traumatic brain injury.
  • head ie, forehead, temples, crest and occipital bone
  • mouth, nose and throat remain unprotected.
  • an avalanche burial can also cause the snow and soil material to be pressed into the mouth, nose and throat, causing a rapid asphyxiation.
  • avalanche rescue systems are aimed primarily at the protection of the head and / or the provision of a breathing air supply for the victim.
  • the avalanche avalanche backpack system already on the market (cf. U.S. Patent 5,490,501A or http://www.powderguide.com/magazine/isme/das-avalung-system.html) on a valve tube system that separates the inhalation from the exhalation air.
  • the hose must be actively supplied to the mouth by the person concerned in case of an emergency and always kept in the mouth in the event of an avalanche, where it is fixed by means of masticatory force.
  • the object of the present invention is therefore to provide an avalanche protective helmet which protects the head of the wearer, including the face area, with a respiratory air or oxygen reservoir connected to the helmet and arranged outside the helmet, wherein the release of the supply of respiratory air or the oxygen is possible in a simple way.
  • Full-face helmets are a closed type helmets. This is used among other things as a motorcycle helmet. Full-face helmets have a fixed chin and a lockable visor. They offer the best design protection with minimal weight.
  • the i ntegrale avalanche respirator helmet 2 of the invention (hereinafter referred to briefly ILASH hereinafter) a Helmau H- 4 and a helmet inner shell 6, between which guide devices 8, 10 for the supply of fresh breathing air or oxygen from outside through a rear portion 14 of the Helmes 2 are provided in the helmet and for the derivation of at least a portion of the exhausted breath to the outside from a front portion 12 of the helmet 2.
  • the fresh respiratory air or the oxygen is stored in a breathing air or oxygen reservoir 16 arranged outside the helmet in the back region of the wearer.
  • the helmet 2 further comprises a sighting device 18, consisting of a jaw guard 20 with a visor disc 22 fixedly connected thereto. By closing the sighting device 18, the release of the supply of stored in the breathing air or oxygen reservoir fresh breathing air or oxygen is triggered.
  • the jaw guard 20 and the visor plate 22 are firmly connected to each other so that they perform synchronous movements when opening or closing the sight.
  • the sighting device is rotatably coupled on both sides of the helmet outer shell 4, for example by means of a pivot joint 26.
  • the jaw guard 20 In sleep mode, ie, if there is no danger of an avalanche, the jaw guard 20 is located together with the visor 22 on the helmet 2 (see. Fig. 3A ). At risk of avalanche, the helmet 2 is then closed by folding down the sighting device 18 (ie jaw guard 20 and visor 22).
  • the breathing air or oxygen supply is activated from a respiratory air or oxygen reservoir 16 arranged in the back region of the helmet wearer.
  • closed condition cf. Fig. 3B
  • guide means 8, 10 between the helmet outer 4 and the helmet inner shell 6, wherein these guide means consist in a first embodiment of hoses 8, 10 (supply or discharge hose).
  • the guide means are formed by channels (not shown) arranged between the helmet outer 4 and the helmet shell 6. It is advantageous to bring the air supply laterally to the mouth and nose of the victim, while the outflow of the spent air is more about the skull backwards, so that it is ensured that there is always a large amount of oxygen-rich air before the mouth and nose of the victim ,
  • the breathing air or oxygen reservoir can be, for example, a compressed air cylinder 16, optionally in combination with an air cushion (airbag) 24A, 24B, which constitutes a secondary downstream air reservoir in addition to a protective function.
  • air cushion airbag
  • hoses 8, 10 or channels leading from the outside of the helmet into the inner front helmet part are provided from the rear helmet area 14.
  • respiratory air flows from a breathing air or oxygen reservoir 16, 24 outside the helmet. Oxygen forward into the airway to the victim's nose and mouth, allowing it to breathe freely.
  • the used breathing air is low in oxygen, carbon dioxide enriched and moist.
  • the remaining in the helmet portion of the consumed air is enriched by fresh air with oxygen.
  • one or more CO 2 absorbers for example, calcium deposits - not shown
  • CO 2 absorbers for example, calcium deposits - not shown
  • these limescale deposits absorb part of the carbon dioxide that is present and thus reduce the increase in the CO 2 concentration inside the helmet. This is advantageous because a high CO 2 content has a negative effect on craniocerebral injury and disturbs the own respiratory drive of the buried.
  • the absorbers absorb atmospheric moisture, which facilitates the respiration of the victim, as strongly moistened air makes breathing significantly more difficult in the sense of a subjective malaise.
  • these depots can also be arranged elsewhere in the helmet than in the recesses or depressions mentioned. It is thus possible, for example, not to form the helmet shell completely, so that space for fixing the absorber remains here.
  • the ILASH according to the invention is connected to a head-neck-shoulder protection device 24A, 24B, which the helmet wearer carries, for example, on or in his backpack.
  • the head-neck-shoulder protection device 24A, 24B may be an air bag or other protective system, such as a helmet-backpack sleeve.
  • the head-neck-shoulder protection part 24B In the activated state (cf. FIG. 2 ), the head-neck-shoulder protection part 24B at least partially surrounds the head and neck of the helmet wearer, thereby also protecting the guide devices 8, 10 in this area.
  • the helmet wearer closes the helmet by folding down the sighting device 18 (cf. FIGS. 3A, 3B ).
  • This process triggers the opening of a compressed air cylinder 16 entrained in the backpack via a mechanically continuous connection 28 (Bowden cable) or an electromagnetic signal whose air content in a first embodiment abruptly fills an air cushion (airbag).
  • the Bowden cable 28 is attached via attachment points 30, 32 on the one hand to the sighting device 28, on the other hand to the valve of the compressed air cylinder 16.
  • the electromagnetic signal is preferably triggered by a reed contact (not shown).
  • the filling of the air bag 24A, 24B has the primary effect that the air bag portion 24B at least partially encloses the helmet wearer's head, and thus also the guide devices 8, 10 (supply and discharge hose) from the backpack over the rear helmet area 14 to the end of the helmet front helmet area 12 protects.
  • the air therein is directed from the rear into the interior of the helmet 2 and there guided by the guided between the helm 4 and the helmet outer shell 6 arranged guide devices 8, 10 to the respiratory cavity in front of the mouth and nose of the victim guided.
  • the flow direction of the air follows the pressure gradient between air cushion interior and the respiratory cavity. This ensures a continuous stream of unused air towards the respiratory zone of the victim, whereby sufficient oxygen is transported, at least until the air cushion (airbag) is completely emptied. Rebreathing the spent breathing air of the victim into the delivery tube is ruled out as a result of this continuous flow of air from the air bag.
  • a certain feeding time can be ensured (see below).
  • the supply of unused breathing air from an additional, carried in the backpack compressed air cylinder goes out. This is opened in the same way as described above when closing the helmet and then provides via an integrated pressure reducer, which can be set to a fixed flow amount, also a continuous air flow in the direction of the respiratory cavity of the victim. Also in this embodiment, the air is passed through the hose connection by means of the breathing air hose to the respiratory cavity of the victim.
  • the head-neck-shoulder protection device for example, the airbag 24A, 24B has only a protective function for both the spill and the guide devices 8, 10 between the helmet 2 and the backpack, the air-filling of the airbag thus remains unchanged.
  • the supply of fresh breathing air or oxygen in the present invention can thus be realized in two different embodiments - either directly via a compressed air cylinder with integrated pressure reducer or secondarily via the air filling of an air cushion (airbag).
  • the compressed air cylinder can be dimensioned for air supply with 0.5 l volume at a cylinder pressure of 300 bar, which corresponds to a continuous airflow of 3 lmin -1 over 50 minutes.
  • the same supply duration with oxygen ensures a 150-liter airbag.
  • Airbags have a volume of 150 to 170 liters and are equipped with a suitably sized compressed air bottle so that these systems can be easily integrated into the system of the present invention.
  • the ILASH of the present invention protects the entire head of the helmet wearer including the face area. It thus prevents the penetration of snow or foreign material (eg soil) into the nose and Oral cavity. In addition, it ensures in the inside of the helmet in front of the nose and mouth of the helmet wearer a small breathing cavity, through which the free supply of breathing air is possible.
  • Another advantage of the ILASH according to the invention is the easy release of the supply of respiratory air or oxygen.
  • the ILASH according to the invention can be used both with and without an additional airbag system (airbag).
  • airbag airbag

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

Claims (15)

  1. Casque intégral de protection respiratoire pour avalanches (2) comportant une coque extérieure (4) de casque et une coque intérieure (6) de casque, entre lesquelles des dispositifs de conduites (8, 10) sont prévus pour l'alimentation en air de respiration frais ou en oxygène dans le casque depuis l'extérieur par une zone postérieure (14) du casque (2), et pour l'évacuation vers l'extérieur depuis une zone antérieure (12) du casque (2) d'au moins une partie de l'air de respiration expiré, l'air de respiration frais ou l'oxygène étant stocké dans un réservoir (16) d'air de respiration ou d'oxygène disposé dans la zone dorsale du porteur à l'extérieur du casque (2), caractérisé en ce que le casque (2) est muni d'un dispositif de visière (18) constitué d'une mentonnière (20) et d'une vitre de visière (22) reliée fixement dessus, et la libération de l'alimentation en air de respiration frais ou en oxygène stocké dans le réservoir (16) d'air de respiration ou d'oxygène peut être déclenchée par fermeture du dispositif de visière (18).
  2. Casque de protection respiratoire pour avalanches selon la revendication 1, caractérisé en ce que le dispositif de visière (18) est monté rotatif sur la coque extérieure (4) de casque au moyen d'une articulation pivotante (26).
  3. Casque de protection respiratoire pour avalanches selon la revendication 1 ou 2, caractérisé en ce que les dispositifs de conduites (8, 10) comprennent des tuyaux guidés entre la coque extérieure (4) de casque et la coque intérieure (6) de casque.
  4. Casque de protection respiratoire pour avalanches selon la revendication 1 ou 2, caractérisé en ce que les dispositifs de conduites d'alimentation (8, 10) comprennent des canaux disposés entre la coque extérieure (4) de casque et la coque intérieure (6) de casque.
  5. Casque de protection respiratoire pour avalanches selon l'une des revendications 1 à 4, caractérisé en ce que le réservoir (16) d'air de respiration ou d'oxygène est disposé dans la zone dorsale de l'utilisateur, en particulier dans un sac à dos.
  6. Casque de protection respiratoire pour avalanches selon la revendication 3 ou 4, caractérisé en ce que le tuyau (10) ou le canal servant à l'évacuation de l'air de respiration expiré a un diamètre plus grand que le tuyau (8) ou le canal servant à l'alimentation en air de respiration frais ou en oxygène.
  7. Casque de protection respiratoire pour avalanches selon l'une des revendications précédentes, caractérisé en ce que le réservoir (16) d'air de respiration est une bouteille d'air comprimé.
  8. Casque de protection respiratoire pour avalanches selon l'une des revendications 5 à 7, caractérisé en ce qu'un dispositif de protection tête-cou-épaule, en particulier un airbag (24A, 24B), est disposé entre le casque (2) et le sac à dos pour stabiliser les dispositifs de conduites (8, 10).
  9. Casque de protection respiratoire pour avalanches selon la revendication 8, caractérisé en ce que l'airbag constitue un réservoir d'air secondaire aval.
  10. Casque de protection respiratoire pour avalanches selon la revendication 8 ou 9, caractérisé en ce que le dispositif de protection tête-cou-épaule (24A, 24B) peut être activé, en particulier l'airbag peut être rempli par une bouteille d'air comprimé.
  11. Casque de protection respiratoire pour avalanches selon l'une des revendications 5 et 7 à 10, caractérisé en ce que la bouteille d'air comprimé est disposée dans le sac à dos.
  12. Casque de protection respiratoire pour avalanches selon la revendication 10, caractérisé en ce que le dispositif de protection tête-cou-épaule (24A, 24B) à l'état activé entoure au moins partiellement la tête du porteur du casque et entoure ainsi au moins partiellement les dispositifs de conduites (8, 10).
  13. Casque de protection respiratoire pour avalanches selon l'une des revendications précédentes, caractérisé en ce qu'un ou plusieurs absorbeurs de CO2 sont disposés à l'intérieur du casque (2).
  14. Casque de protection respiratoire pour avalanches selon la revendication 5 ou 6, caractérisé en ce que le tuyau (10) peut être guidé dans le sac à dos pour évacuer vers l'extérieur l'air de respiration expiré.
  15. Casque de protection respiratoire pour avalanches selon l'une des revendications précédentes, caractérisé en ce que la libération de l'alimentation peut être déclenchée par une liaison mécanique continue (28), en particulier par un câble Bowden, ou par un signal électromagnétique.
EP17155318.3A 2016-02-12 2017-02-09 Respirateur casque integral de protection avalanche Active EP3205223B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016100732.1U DE202016100732U1 (de) 2016-02-12 2016-02-12 Integraler Lawinen-Atemschutzhelm

Publications (2)

Publication Number Publication Date
EP3205223A1 EP3205223A1 (fr) 2017-08-16
EP3205223B1 true EP3205223B1 (fr) 2019-02-20

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Application Number Title Priority Date Filing Date
EP17155318.3A Active EP3205223B1 (fr) 2016-02-12 2017-02-09 Respirateur casque integral de protection avalanche

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EP (1) EP3205223B1 (fr)
DE (1) DE202016100732U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108974281A (zh) * 2018-09-17 2018-12-11 陈荣刚 一种应急储气式可呼吸救生装置及其使用方法
CN116659478B (zh) * 2023-08-02 2023-10-27 国网山东省电力公司费县供电公司 一种邻位电网电缆安装架间距测量用全站仪

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490501A (en) 1994-05-16 1996-02-13 Crowley; Thomas J. Avalanche victim's air-from-snow breathing device
DE69842196D1 (de) * 1998-12-02 2011-05-05 Avagear Inc Lebensrettende jacke für lawinen mit luftsack
WO2007110217A1 (fr) 2006-03-25 2007-10-04 Felix Kindermann Casque de sauvetage pour avalanche
DE202009010353U1 (de) * 2009-07-31 2009-11-19 Soltenau, Rupert Schibrille für Freerider
EP2311335A3 (fr) 2009-10-13 2012-04-18 Rupert Soltenau Couvre-chef, de préférence casque de ski pour freeriders
DE102012213288A1 (de) * 2012-07-27 2014-05-15 Uvex Sports Gmbh & Co. Kg Lawinen-Schutzhelm
EP2974773B1 (fr) * 2014-07-18 2022-11-09 Amer Sports Canada Inc. Système de secours à airbag et son dispositif de déclenchement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
DE202016100732U1 (de) 2016-02-19
EP3205223A1 (fr) 2017-08-16

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