WO2024042032A1 - Sac à dos de sécurité en cas d'avalanche - Google Patents

Sac à dos de sécurité en cas d'avalanche Download PDF

Info

Publication number
WO2024042032A1
WO2024042032A1 PCT/EP2023/072924 EP2023072924W WO2024042032A1 WO 2024042032 A1 WO2024042032 A1 WO 2024042032A1 EP 2023072924 W EP2023072924 W EP 2023072924W WO 2024042032 A1 WO2024042032 A1 WO 2024042032A1
Authority
WO
WIPO (PCT)
Prior art keywords
backpack
pressure chamber
avalanche protection
airbag
compressed air
Prior art date
Application number
PCT/EP2023/072924
Other languages
German (de)
English (en)
Inventor
Matthias WERZ
Original Assignee
ADVENATE GmbH
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
Priority claimed from DE102022121147.9A external-priority patent/DE102022121147A1/de
Application filed by ADVENATE GmbH filed Critical ADVENATE GmbH
Publication of WO2024042032A1 publication Critical patent/WO2024042032A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B33/00—Devices for allowing seemingly-dead persons to escape or draw attention; Breathing apparatus for accidentally buried persons
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B99/00—Subject matter not provided for in other groups of this subclass

Definitions

  • the invention relates to an avalanche protection backpack with at least one inflatable buoyancy airbag.
  • the volume of an avalanche buoyancy body required by a safety standard must be at least 150 liters.
  • the majority of systems available on the market fill this volume completely through the Gas contained in high-pressure cartridges or with ambient air via an electrically driven fan.
  • systems are also known in which the airbag has a support structure with a volume of only approximately 30 liters, with only this support structure being filled directly with gas. The rest of the airbag is deployed through the support structure and filled with ambient air, resulting in the total volume of the airbag required by the standard of 150 liters.
  • the present invention is based on the object of providing an avalanche protection backpack that is light and also allows the airbag to be inflated repeatedly for pure exercise purposes without high costs.
  • an avalanche protection backpack with at least one inflatable airbag which is characterized in that it is equipped with one or more pressure chambers in which a gas under pressure, in particular compressed air, can be stored, and in that it has a valve device through which the Gas stored in the pressure chamber(s) flows into the at least one airbag when the valve device is actuated by means of a trigger device provided on the backpack.
  • the compressed air or another gas is used to inflate the airbag directly into the space provided for this purpose Pressure chambers stored in the backpack. This means you don't have to carry heavy gas cartridges with you.
  • the pressure chambers can be easily filled and can be refilled as often as desired even after the airbag has been inflated, for example for practice purposes.
  • the pressure chamber or pressure chambers can preferably be provided with an inlet valve to which, for example, a hand compressor can be connected to fill the chambers.
  • Powerful compressors, gas cartridges or fans can be connected to the inlet valve so that gas with a pressure of over 200 bar, for example in the range 250 to 300 bar, can be stored in the pressure chamber or chambers.
  • a back protector is therefore ideal for integrating a pressure chamber.
  • Several separate pressure chambers can also be provided in one protector. It is also conceivable to integrate the pressure chamber into the back frame of a backpack.
  • the back frame can have a back protector as an integral part, in which the pressure chamber (s) are arranged.
  • channels provided in the protector can form at least one pressure chamber.
  • the channels may also have reinforcing liners if gas is to be stored at very high pressure.
  • the protector can have recesses in which one or more compressed air hoses are inserted. These hoses can also be detachably arranged in the recesses. It is also possible to remove the entire protector with the pressure chamber(s) or just one pressure chamber, in particular a compressed air hose, from the backpack.
  • the pressure chamber or chambers which can be designed as compressed air hoses, can have a coupling for connection to the valve unit.
  • the back area of the backpack and in particular a back protector arranged there is not the only place in the backpack into which one or more pressure chambers can be integrated.
  • At least one pressure chamber can also be integrated in side sections, a back section and/or in a bottom area of the backpack.
  • the at least one pressure chamber in the side parts, the back part and/or the bottom area of the backpack can expediently have a tear-resistant and airtight casing in order to be able to withstand the prevailing pressure well.
  • the casing can be made of a flexible material and the at least one pressure chamber can be interspersed with struts or threads to stabilize the shape.
  • a flexible jacket can be easily integrated into the flexible outer material of the entire backpack.
  • the sheathing can be made, for example, from para-aramid fibers such as Kevlar.
  • the threads or struts inside the pressure chambers prevent the sides and/or bottom of the backpack from bulging too much due to the pressurized gas.
  • all suitable areas of the backpack i.e. H. the back area, the side areas and the bottom are provided with pressure chambers.
  • Another measure to reduce the required pressure is to equip the avalanche protection backpack with a support structure made of tubes for the at least one airbag, with gas flowing from the pressure chamber or chambers into the support structure via the valve device which can be actuated by the triggering device. Inflating the support structure requires less gas volume from the pressure chambers than inflating the entire airbag. If the volume of the pressure chambers is not sufficient to inflate the entire airbag, but only for the support structure, the remaining areas of the airbag can be filled with ambient air if the airbag is provided with appropriate valves for this purpose.
  • the valve device for discharging the gas from the pressure chambers can preferably have at least one check valve between the pressure chamber(s) and the at least one airbag and at least one Venturi nozzle communicating with the ambient air of the airbag.
  • several check valves are preferably provided to accelerate the inflation of the airbag.
  • the Venturi nozzle ensures that ambient air can also be directed into the airbag.
  • a pressure hose can have an inner diameter in the range of 5 mm to 11 mm, preferably in the range of 6 mm to 10 mm. If a pressure chamber is designed as a pressure hose, it can be arranged in a particularly space-saving manner. In addition, such a pressure chamber is particularly light.
  • a pressure hose can be made of plastic, in particular Teflon, or rubber and have a coating. Such a hose is particularly suitable for storing gases at pressures above 200 bar, especially at pressures in the range 250 bar to 300 bar.
  • the compressed air hose can have an elastomer core that is surrounded by a reinforcing jacket.
  • the casing can have one, two or more layers.
  • the sheathing stiffens the compressed air hose. It is particularly advantageous if the elastomer core has a smooth inner wall, in particular if it is not corrugated or grooved.
  • the casing of the pressure hose can have metal, in particular stainless steel, carbon, aramid and/or plastic.
  • the sheathing can be designed as a helix, braid or fabric.
  • the casing is designed to be flexible, so that the pressure hose can be suitably arranged on the avalanche protection backpack, in particular the protector.
  • Fig. 1 is a perspective view of an avalanche protection backpack
  • Fig. 2 is a perspective view of an deployed airbag of the backpack from Fig. 1;
  • Fig. 3 is a schematic view of backpack areas with pressure chambers
  • Fig. 4 shows a back protector of the backpack from Fig. 1;
  • FIG. 5 shows a cross section of a first embodiment of the protector from FIG. 4;
  • FIG. 6 shows a cross section of a second embodiment of the protector from FIG. 4;
  • FIG. 7 shows a schematic cross section through a pressure chamber in a side part of the backpack from FIG. 1;
  • Fig. 9 shows a pressure chamber of the back protector of Fig. 8;
  • Fig. 10 is a partial representation of the back protector of Fig. 8 in a partial sectional view.
  • the avalanche protection backpack 10 shown in Fig. 1 has a backpack body 11 to which shoulder straps 12, 13 are attached.
  • a release handle 14 for an airbag 20 shown in FIG. 2 is arranged on one of the shoulder straps 12.
  • four pressure chambers 30 to 33 shown in FIG. 3 are arranged in the backpack body 11. These can be filled with compressed air from the outside via an inlet valve 15 in a side part 16 of the backpack 10, for example using a hand compressor.
  • a pressure gauge 17 is also arranged in the side section 16. If the pressure chambers 30 to 33 are not connected to one another, further inlet valves 15 can be provided for each of the pressure chambers 30 to 33 on the backpack 10.
  • the backpack 10 has zippers 18 on its top and along the side parts 16, which burst open under pressure when the airbag 20 is inflated.
  • protective tabs 19 with Velcro fasteners are provided, which partially cover the zippers 18 to the outside.
  • the airbag 20 of the avalanche protection backpack 10 from FIG. 1, shown in the inflated state in FIG. 2, has a support structure 21 formed from tubes 22.
  • This support structure 21 is first inflated with the compressed air from the pressure chambers 30 - 33 via a valve device 25 with several valves 26 before a volume 23 of the airbag 20 between the hoses 22 is also filled with air.
  • the valve device 25 is operated by means of the release handle 14.
  • the volume 23 can also be at least partially filled with ambient air.
  • the airbag 20 has at least one check valve 24 on its outside.
  • Fig. 3 shows schematically that the backpack 10 has a total of four
  • Pressure chambers 30 to 33 are equipped.
  • a first pressure chamber 30 is in the Back of the backpack 10 is integrated, while the pressure chambers 31, 32 are provided in the side parts of the backpack.
  • another pressure chamber 33 is arranged in the bottom of the backpack.
  • the pressure chamber 30 in the back area of the backpack 10 can also be integrated into a back protector 34, which is shown in FIG. 4.
  • Fig. 4 shows a first half 36 of the back protector 34, which is composed of two halves 35, 36, as the cross-sectional view in Fig. 5 illustrates.
  • the two halves 35, 36 form a meandering channel 37 between them, which can either serve as a pressure chamber 30 itself, provided that the entire protector 34 is made of a suitable pressure-resistant and airtight material, or - as shown - to accommodate a compressed air hose 38 (Fig. 5) can serve.
  • Fig. 6 shows an alternative embodiment of a back protector 34 ', which has recesses 39 which are open towards the back of the wearer of the backpack 10 and into which the compressed air hose 38 can be inserted.
  • the compressed air hose 38 When filled, the compressed air hose 38 forms part of the protector 34 'and can provide additional damping.
  • the compressed air hose 38 can preferably be woven from high-strength polyester, with the fabric being interspersed with nitrile rubber or this material forming an outer and inner coating of the fabric.
  • Fig. 7 shows schematically a possible embodiment of the pressure chamber 33 in the bottom area of the backpack 10. It has a first casing 40 made of a high-pressure-resistant laminate. This is covered from the outside by a tear-resistant outer material 41 of the backpack and is thus protected from injuries caused by stones, ski edges or the like. Inside the pressure chamber 33 is penetrated by threads 42, which stabilize the shape of the pressure chamber 33 and prevent it from bulging.
  • FIG. 8 shows a back protector 34", which has a pressure chamber 30, which is designed as a compressed air hose 38.
  • a pressure gauge 17 with a pressure display is arranged immediately after the inlet valve 15.
  • the compressed air hose 38 initially extends horizontally with a section 50.
  • the compressed air hose 38 continues via a curved section 51 into a vertically aligned section 52, which runs along the side of the protector 34".
  • This is followed by a substantially semicircular or U-shaped section 53, which merges again into a vertical section 54 .
  • the vertical section 54 is followed by a section 55, which corresponds to an inverted S-shape.
  • the adjoining section 56 again runs vertically and parallel to the section 52.
  • This in turn is followed by an approximately semicircular or U-shaped section 57 which merges into a vertical section 58 which runs parallel to the side of the protector 34".
  • the compressed air hose 38 is connected to a coupling 60 of the valve device 25, which has a Venturi nozzle.
  • the valve device 25 has an air intake 62.
  • An airbag, not shown here, is connected to the valve device 25 in area 64.
  • the inlet valve 15 is therefore located at the bottom of the avalanche protection backpack when the protector 34" is installed.
  • the air intake 62 is located at the top of the avalanche protection backpack.
  • a trigger device 14, not shown here, is connected to the valve device 25.
  • the back protector 34" adjusts together with the compressed air hose 38 Storage module, which can be removed from or arranged in the avalanche protection backpack.
  • the valve device 25 and the airbag remain in the avalanche protection backpack.
  • the compressed air hose 38 can be coupled to the valve device 25 via the coupling 60.
  • the area 64 for connecting the airbag is arranged essentially in the middle of the avalanche protection backpack.
  • the protector is preferably made of expanded polypropylene (EPP).
  • Pressure chamber 30 can also be filled with another gas.
  • the protector 34" can have two half-shells, between which the compressed air hose 38 is arranged.
  • FIG. 9 again shows the pressure chamber 30 or the compressed air hose 38 in its optimal configuration for use as a gas storage device in an avalanche protection backpack.
  • the coupling 60 can also be seen here, with which the compressed air hose 38 can be connected to the valve device 25.
  • valve device 25 shows the upper part of the back protector 34".
  • the valve device 25 is connected to the compressed air hose 38 via the coupling 60, with part of the housing of the valve device 25 being hidden.
  • the trigger device 14 is connected to a Mechanism 70 is connected.
  • the mechanism 70 is actuated, so that a valve is opened and air can flow from the compressed air hose 38 into the valve device 25. Air is fed through the air intake 62, which is connected to the Venturi nozzle is sucked in and an airbag connected to area 64 is inflated.
  • the protector 34" is described above as a module which can be inserted into and removed from the avalanche protection backpack. It is also conceivable to provide a protector with an integrated compressed air hose 38 as an integral part of a backpack carrying system of an avalanche protection backpack. At least one half-shell of the protector is then visible from the outside. This saves the weight of a separate protector as hose protection.

Landscapes

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

Abstract

La présente invention concerne un sac à dos de sécurité en cas d'avalanche (10) comprenant au moins un coussin de sécurité gonflable équipé d'une ou de plusieurs chambres de pression dans lesquelles un gaz sous pression, en particulier de l'air sous pression, peut être rempli par l'intermédiaire d'une ou de plusieurs soupapes d'entrée (15) à partir d'une source de pression externe. Le gaz stocké dans la ou les chambres de pression s'écoule dans l'au moins un coussin de sécurité gonflable par l'intermédiaire d'un dispositif de soupape lorsque le dispositif de soupape est actionné au moyen d'un élément de déclenchement (14) disposé sur le sac à dos (10).
PCT/EP2023/072924 2022-08-22 2023-08-21 Sac à dos de sécurité en cas d'avalanche WO2024042032A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102022121147.9A DE102022121147A1 (de) 2022-08-22 2022-08-22 Lawinenschutzrucksack
DE102022121147.9 2022-08-22
DE102023103841.9 2023-02-16
DE102023103841 2023-02-16

Publications (1)

Publication Number Publication Date
WO2024042032A1 true WO2024042032A1 (fr) 2024-02-29

Family

ID=87889073

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/072924 WO2024042032A1 (fr) 2022-08-22 2023-08-21 Sac à dos de sécurité en cas d'avalanche

Country Status (1)

Country Link
WO (1) WO2024042032A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130283510A1 (en) * 2010-10-26 2013-10-31 Mammut Sports Group Ag Portable Airbag for People
US20150228174A1 (en) * 2014-02-13 2015-08-13 Sparq LLC Survival backpack with notification system
EP3045207A1 (fr) * 2015-01-13 2016-07-20 Oberalp Spa Système d'airbag à avalanche comportant de multiples coussins d'air
EP3146999A1 (fr) * 2015-09-22 2017-03-29 Black Diamond Equipment AG Systèmes et procédés pour la protection d'avalanche gonflable modulaire
US20180140875A1 (en) * 2015-05-27 2018-05-24 Nic Impex Device for inflating multiple envelopes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130283510A1 (en) * 2010-10-26 2013-10-31 Mammut Sports Group Ag Portable Airbag for People
US20150228174A1 (en) * 2014-02-13 2015-08-13 Sparq LLC Survival backpack with notification system
EP3045207A1 (fr) * 2015-01-13 2016-07-20 Oberalp Spa Système d'airbag à avalanche comportant de multiples coussins d'air
US20180140875A1 (en) * 2015-05-27 2018-05-24 Nic Impex Device for inflating multiple envelopes
EP3146999A1 (fr) * 2015-09-22 2017-03-29 Black Diamond Equipment AG Systèmes et procédés pour la protection d'avalanche gonflable modulaire

Similar Documents

Publication Publication Date Title
DE69833718T2 (de) Eine pneumatische Struktur
WO1998033559A1 (fr) Appareil de sauvetage lors d'avalanches
DE2105428A1 (de) Sicherheitsvorrichtung in Fahrzeugen zur Verminderung des Aufpralles
EP0957995B1 (fr) Appareil de sauvetage pour personnes prises dans des avalanches
EP0048894B1 (fr) Alimentation en air pour plongeurs à partir de la surface d'eau
WO2024042032A1 (fr) Sac à dos de sécurité en cas d'avalanche
EP2479105B1 (fr) Ensemble de sauvetage pour conducteur de sous-marin
DE2303778A1 (de) Stossfaenger, insbesondere stosstange fuer fahrzeuge
DE3829617C2 (fr)
EP3854244B1 (fr) Dispositif protecteur du corps
DE102022121147A1 (de) Lawinenschutzrucksack
EP2926869B1 (fr) Système de coussin gonflable destiné à la protection de personnes
DE102008037987B4 (de) Vorrichtung zur Abstandshaltung und/oder Stoßabsorbierung
AT519725B1 (de) Lawinenatemgerät zur versorgung einer lawinenverschütteten person mit atemluft
DE3802416C2 (de) Aufblasbares Laufkissen
DE102006004502A1 (de) Rettungsanzug oder -weste mit einem Atemgerät
DE10136018B4 (de) Kraftfahrzeug mit einer Verstärkung von Hohlräumen für dynamische und ballistische Anwendungen
WO2024046859A1 (fr) Système de protection pour la protection d'une personne
DE102022122179B3 (de) Lawinenrettungseinrichtung
DE102022122822A1 (de) Schutzsystem zum Schutz einer Person
EP1299261A1 (fr) Siege de securite
DE202023103647U1 (de) Trainingsausrüstung für Feuerwehrleute und Mitglieder einer ABC-Schutztruppe
DE202015003651U1 (de) Gurtretter-System
DE10303602A1 (de) Einteiliger Personenschutzanzug
DE102022127731A1 (de) Stehpaddelbrett

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23764239

Country of ref document: EP

Kind code of ref document: A1