EP3956038B1 - Système de coussin gonflable de sécurité d'avalanche - Google Patents

Système de coussin gonflable de sécurité d'avalanche Download PDF

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Publication number
EP3956038B1
EP3956038B1 EP20717800.5A EP20717800A EP3956038B1 EP 3956038 B1 EP3956038 B1 EP 3956038B1 EP 20717800 A EP20717800 A EP 20717800A EP 3956038 B1 EP3956038 B1 EP 3956038B1
Authority
EP
European Patent Office
Prior art keywords
airbag system
housing
pressure vessel
avalanche
fluid
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
EP20717800.5A
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German (de)
English (en)
Other versions
EP3956038A1 (fr
Inventor
Andreas Reiter
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.)
Advenate GmbH
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Advenate GmbH
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Publication date
Application filed by Advenate GmbH filed Critical Advenate GmbH
Publication of EP3956038A1 publication Critical patent/EP3956038A1/fr
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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
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B29/00—Apparatus for mountaineering
    • A63B29/02—Mountain guy-ropes or accessories, e.g. avalanche ropes; Means for indicating the location of accidentally buried, e.g. snow-buried, persons

Definitions

  • the invention relates to an avalanche airbag system with an inflatable airbag, a filling unit for filling the airbag with a fluid, comprising at least one pressure vessel containing a fluid, and a triggering mechanism for opening the at least one pressure vessel as required.
  • an avalanche In snow-covered terrain, an avalanche is understood as a sliding mass of snow. Most of the avalanches that bury a person are triggered by the buried person themselves. In the European Alps alone, an average of 109 people die every year as a result of an avalanche.
  • the DE 197 03 656 A1 discloses an avalanche rescue system which has at least one inflatable buoyancy body connected close to the user's body, a filling unit, a compressed gas unit with a compressed gas tank and a triggering device.
  • the filling unit is arranged within the buoyancy body.
  • the filling unit can have an ejector nozzle for sucking in ambient air.
  • the WO 2017/077074 A1 discloses an avalanche airbag system in which an impeller is driven by a motor powered by a battery.
  • the WO 2016/148592 A1 discloses an avalanche airbag system with a gas cartridge.
  • the object of the present invention is to provide an avalanche airbag system which avoids the disadvantages mentioned above.
  • the avalanche airbag system according to the invention thus represents a hybrid form of the known systems.
  • the pressure vessels can contain CO2 as fluid.
  • a commercially available CO2 cartridge can thus be used as the energy store used to inflate the airbag.
  • CO2 cartridge is not used directly to fill the airbag, but rather the fan wheel is driven directly or indirectly with the gas escaping under pressure. Similar to a turbocharger, the fan wheel generates an air flow that is used to fill the airbag.
  • the connection of a pressure vessel and a fan wheel makes it possible to combine the advantages of both known systems and to almost completely eliminate the disadvantages.
  • the at least one pressure vessel can be opened by actuating the triggering system.
  • the pressure vessel can also be opened when it is fixed in place, this can be done, for example, by screwing it in.
  • the triggering unit By actuating the triggering system, the triggering unit, which is under pressure, will then release the fluid from the pressure vessel.
  • One or more pressure vessels can be provided. If several pressure vessels are provided, they can be activated and thus opened simultaneously by the triggering system or one after the other. It is conceivable to provide containers of different sizes. In principle, it is also conceivable to provide more than one fan wheel. It is conceivable to provide several fan wheels in one housing. Alternatively or additionally, several filling units, i.e. several housings, each with an assigned fan wheel, can be provided. This results in redundancy that improves safety. One or more pressure vessels can be assigned to each fan wheel.
  • At least one nozzle can be arranged between the at least one pressure vessel and the fan wheel.
  • the nozzle can be arranged in front of the housing or in the housing.
  • the at least one nozzle can be integrated into the housing. If multiple nozzles are provided, they may be arranged at staggered positions.
  • the gas flow escaping from the pressure vessel can be guided through the nozzles in a targeted manner onto the fan wheel or a drive wheel to be described later.
  • the gas escaping from the at least one pressure vessel can only be used to drive the fan wheel. However, it is also conceivable that the escaping gas not only drives the fan wheel but is also used at least partially to fill the airbag.
  • the fan wheel driven by the gas flow itself generates an air volume through which the airbag is inflated.
  • the main task of the pressure vessel is to represent an energy store, which drives the fan wheel via the stored gas pressure.
  • the volume of gas that fills the airbag is generated by the fan wheel.
  • the fluid used can be a gas, this must be but not necessarily in compressed form as a gas in the pressure vessel, but can also be in liquid form in the pressure vessel.
  • the airbag can be designed as an airtight cover, for example as a fabric bag or plastic fabric.
  • the at least one airbag is based on the current standard in terms of size, material and other design features. For example, it can have a volume of more than 150 l.
  • the housing can have at least two parts. This facilitates the assembly of the fan wheel in the housing.
  • the housing parts can be plugged together.
  • the fan wheel can be designed as an axial fan wheel or as a radial fan wheel.
  • the housing can form a spiral cavity.
  • the fan wheel is designed as a radial fan wheel, it is advantageous if this is arranged in the spiral cavity.
  • Half of the spiral cavity can be formed by a housing half.
  • the cross section of the cavity can be constant. However, it is particularly preferred if the cross section of the cavity increases towards the fluid outlet. By constructing the cavity as a spiral and with an increasing cross-section, an increase in pressure can be achieved.
  • the fan wheel can be directly driven by the fluid flowing out of the pressure vessel be drivable.
  • the pressure vessel or the nozzle can accordingly be arranged in such a way that the fan impeller is flown directly against by the fluid escaping from the pressure vessel and is thus driven.
  • the fluid can flow against blades of the fan wheel in order to set the fan wheel in motion.
  • a drive wheel connected to the fan wheel can be provided, on which the fluid of the at least one pressure vessel can flow. A drive wheel is thus first driven by the fluid escaping from the pressure vessel. In particular, a corresponding flow is applied to the blades of a drive wheel.
  • the drive wheel can be arranged in a drive wheel housing.
  • the impeller housing can be a separate housing or it can be part of the housing of the fan wheel.
  • the drive wheel can be coupled to the fan wheel directly via an axis, that is to say in particular in a rotationally fixed manner.
  • the drive wheel can be coupled to the fan wheel via a transmission gear.
  • a non-return fitting can be arranged in the area of the fluid outlet.
  • a flap or a check valve can be provided.
  • the tripping system may include a trip unit.
  • the pressure vessel or vessels can be attached to the triggering unit.
  • the triggering unit can have the task of holding the pressure vessel in position, sealing it tightly and opening the container and letting the fluid escape from the pressure vessel when a triggering handle that can be part of the triggering system is pulled.
  • the release handle can be connected to a Bowden cable, for example. It is also conceivable, by actuating a release handle, a signal to the transfer trigger unit. For example, electrical impulses could be transmitted, which would activate a solenoid valve and thereby the pressure vessel could be opened. Mechanical and electrical triggering or activation or opening of the pressure vessel is therefore conceivable.
  • One or more trigger systems can be provided. If several triggering systems are provided, they can act simultaneously or sequentially when activated once by the user.
  • the trip unit can be integrated into the housing. As a result, it is protected.
  • the 1 shows an avalanche airbag system 1 with an airbag 2 and a filling unit 3.
  • the airbag 2 can be arranged in a backpack.
  • the filling unit 3 can be arranged in or on the backpack.
  • a triggering handle 4 is part of a triggering mechanism and can be arranged on the rucksack or, for example, on a strap of the rucksack so that it is easily accessible for a user, so that a user can trigger the avalanche airbag system 1 quickly and reliably if he gets caught in an avalanche.
  • the release handle 4 is connected to a filling unit 6 via a Bowden cable 5 .
  • the airbag 2 is made of a gas impermeable material. It can have a volume of at least 150 l. If several airbags are provided, they can together have a volume of at least 150 l.
  • the 2 shows an exploded view of the filling unit 3.
  • a release handle 4 is connected to a release unit 6 via a Bowden cable 5 .
  • a pressure vessel 10 containing a fluid in a liquid or gaseous state is arranged on the release unit 6 .
  • a user can actuate the triggering unit 6 by pulling on the triggering handle 4 so that the pressure vessel 10 is opened and pressurized gas can escape from the pressure vessel 10 .
  • a nozzle 18 is arranged between the pressure vessel 10 and a housing 12, which has the housing halves 14,16.
  • the optional nozzle 18 is arranged and oriented in such a way that the gas escaping from the pressure vessel 10 is directed onto the impeller 20, in particular onto the blades 22 of the impeller 20.
  • the nozzle 18 can be designed as an outlet opening which is integrated into the housing 12 . This measure causes the fan wheel 20 to rotate.
  • the fan wheel 20 is rotatably arranged in the housing 12 .
  • the fan wheel 20 is designed as a radial fan wheel. An air flow is generated in the housing 12 by the rotation of the fan wheel 20 .
  • the housing 12 has a spiral cavity 24 . In particular, the cavity 24 is formed by the housing halves 14,16.
  • the cross section of the spiral cavity 24 widens towards a fluid outlet 26 to which the airbag 2 is connected.
  • a non-return valve 28 is arranged, which is designed as a non-return valve in the exemplary embodiment shown. This prevents gas from flowing back out of the airbag.
  • the 3 shows an alternative embodiment of a filling unit 3'. Elements similar to those of 1 or 2 correspond are marked with the same reference numerals.
  • a fan wheel 20 is rotatably arranged in the housing 12 with the housing halves 14,16.
  • the fan wheel 20 is non-rotatably connected to a drive wheel 32 via an axle 30 .
  • the drive wheel 32 is arranged in a housing 34 , the housing 34 quasi representing a second chamber of the housing 12 .
  • the trigger unit 6 ' has a slightly different shape than the trigger unit 6, but is otherwise designed like the trigger unit 6.
  • the trigger unit 6' is also connected to a pressure vessel 10, which can be activated or opened by the trigger unit 6' when a user pulls on the deployment handle 4 .
  • the drive wheel 32 takes the fan wheel 20 with it, so that the latter generates an air flow, by which the airbag 2 is inflated.
  • FIG. 1 Another alternative embodiment 3" is in 4 shown.
  • a pressure vessel 10 is connected to the triggering unit 6 .
  • a user can open the pressure vessel 10 via the release unit 6′′, so that gas flows from the pressure vessel 10 into the housing 12 and drives a fan wheel 20′ there, which is rotatably arranged in the housing 12′.
  • the fan wheel 20' is not designed as a radial fan wheel but as an axial fan wheel.
  • the fan wheel 20' is also driven by the gas flow from the pressure vessel 10 and thereby generates an air flow in the axial direction of the housing 12' to the fluid outlet 26', in which a non-return valve 28. It can be seen that the housing 12' tapers towards the fluid outlet 26' This allows the pressure to be increased and the airbag to be inflated more reliably.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Air Bags (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Claims (15)

  1. Système d'airbag d'avalanche (1) comportant
    a. au moins un airbag (2) pouvant être gonflé,
    b. une unité de remplissage (3, 3', 3") permettant de remplir l'airbag (2) avec un fluide, comprenant
    i. au moins un réservoir sous pression (10) contenant un fluide,
    ii. un mécanisme de déclenchement permettant de libérer selon les besoins le fluide (10) contenu dans l'au moins un réservoir sous pression,
    dans lequel
    c. l'unité de remplissage (3, 3', 3") présente un boîtier (12, 12') qui
    i. présente une sortie de fluide (26, 26') reliée de manière fluidique à l'airbag (2), caractérisé en ce que l'unité de remplissage
    ii. présente une roue de ventilateur (20, 20') disposée dans le boîtier (12, 12') et pouvant être entraînée au moins indirectement par le fluide sortant de l'au moins un réservoir sous pression (10).
  2. Système d'airbag d'avalanche selon la revendication 1, caractérisé en ce qu'au moins une buse (18) est disposée entre l'au moins un récipient sous pression (10) et la roue de ventilateur (20, 20').
  3. Système d'airbag d'avalanche selon la revendication 2, caractérisé en ce que l'au moins une buse (18) est intégrée dans le boîtier (12, 12').
  4. Système d'airbag d'avalanche selon l'une quelconque des revendications précédentes, caractérisé en ce que le boîtier (12, 12') présente au moins deux parties (14, 16).
  5. Système d'airbag d'avalanche selon l'une quelconque des revendications précédentes, caractérisé en ce que la roue de ventilateur (20') est réalisée en tant que roue de ventilateur axiale.
  6. Système d'airbag d'avalanche selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la roue de ventilateur (20) est réalisée en tant que roue de ventilateur radiale.
  7. Système d'airbag d'avalanche selon l'une quelconque des revendications précédentes, caractérisé en ce que le boîtier (12) forme une cavité en forme de spirale.
  8. Système d'airbag d'avalanche selon la revendication 7, caractérisé en ce que la section transversale de la cavité (24) augmente en direction de la sortie de fluide (26).
  9. Système d'airbag d'avalanche selon l'une quelconque des revendications précédentes, caractérisé en ce que la roue de ventilateur (20, 20') peut être entraînée directement par le fluide sortant du réservoir sous pression (10).
  10. Système d'airbag d'avalanche selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une roue d'entraînement (32) reliée à la roue de ventilateur (20) est prévue, laquelle roue d'entraînement peut être alimentée par le fluide de l'au moins un réservoir sous pression (10).
  11. Système d'airbag d'avalanche selon la revendication 10, caractérisé en ce que la roue d'entraînement (32) est disposée dans un boîtier de roue d'entraînement (34).
  12. Système d'airbag d'avalanche selon l'une quelconque des revendications 10 ou 11, caractérisé en ce que la roue d'entraînement (32) est couplée à la roue de ventilateur (20) directement par l'intermédiaire d'un axe (30) ou par l'intermédiaire d'un engrenage démultiplicateur.
  13. Système d'airbag d'avalanche selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une armature anti-retour (28) est disposée dans la zone de la sortie de fluide (26, 26').
  14. Système d'airbag d'avalanche selon l'une quelconque des revendications précédentes, caractérisé en ce que le système de déclenchement comprend une unité de déclenchement (6, 6', 6").
  15. Système d'airbag d'avalanche selon la revendication 14, caractérisé en ce que l'unité de déclenchement (6, 6', 6") est intégrée dans le boîtier (12, 12').
EP20717800.5A 2019-04-18 2020-03-31 Système de coussin gonflable de sécurité d'avalanche Active EP3956038B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019110303.7A DE102019110303A1 (de) 2019-04-18 2019-04-18 Lawinenairbagsystem
PCT/EP2020/059157 WO2020212136A1 (fr) 2019-04-18 2020-03-31 Système de coussin gonflable de sécurité d'avalanche

Publications (2)

Publication Number Publication Date
EP3956038A1 EP3956038A1 (fr) 2022-02-23
EP3956038B1 true EP3956038B1 (fr) 2023-05-03

Family

ID=70228005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20717800.5A Active EP3956038B1 (fr) 2019-04-18 2020-03-31 Système de coussin gonflable de sécurité d'avalanche

Country Status (5)

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US (1) US20220152435A1 (fr)
EP (1) EP3956038B1 (fr)
CA (1) CA3136999A1 (fr)
DE (1) DE102019110303A1 (fr)
WO (1) WO2020212136A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022124536A1 (de) 2022-09-23 2024-03-28 ADVENATE GmbH Fahrzeug mit Airbag

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Also Published As

Publication number Publication date
US20220152435A1 (en) 2022-05-19
CA3136999A1 (fr) 2020-10-22
EP3956038A1 (fr) 2022-02-23
DE102019110303A1 (de) 2020-10-22
WO2020212136A1 (fr) 2020-10-22

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