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
  • A63B29/021—Means for indicating the location of accidentally buried, e.g. snow-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
  • A63B29/021—Means for indicating the location of accidentally buried, e.g. snow-buried, persons
  • A63B2029/022—Means for indicating the location of accidentally buried, e.g. snow-buried, persons with means for automatically activating signal means in case of an avalanche
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B2210/00—Space saving
  • A63B2210/50—Size reducing arrangements for stowing or transport
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
  • A63B2225/62—Inflatable

Definitions

• the invention relates to an avalanche rescue system, comprising at least one inflatable buoyancy body made of collapsible, tear-resistant material and a filling arrangement, and a method for filling such an avalanche rescue system, comprising the steps of actuating the triggering device, and then the automatic filling of the buoyant body.
• Such an avalanche rescue system also known as avalanche airbag
• avalanche airbag is a rescue device, which should prevent the sinking of touring, skiers or snowshoe hikers in a flowing avalanche.
• the effect is not based on "swimming" in the traditional sense:
• An inflated avalanche airbag increases the skier / tourer / hiker and he remains in a flowing avalanche or in the surface area because of the "sorting effect". This is because large parts remain on the slab / avalanche surface due to this "inverse granulation", small ones sink into deeper layers, and finding and recovering the carrier of an avalanche airbag is made much easier by the "enlargement" of the affected person.
• these avalanche rescue systems consist of one or two balloons with a total volume of approximately 150 liters. These are to be integrated in a ski touring or freeride rucksack or attached to such. When pulling a trigger handle, the balloons are inflated within 3 - 4 sec from a compressed air cartridge and a valve system with ambient air.
• one or more balloon-type air chambers are filled via a pressure bottle, whereby about 70% of the filling volume comes from the ambient air via a venturi system.
• the Venturi nozzles or even the filling unit can also be installed directly in the balloons, as disclosed in EP0957994B1.
• the air chamber of the avalanche rescue system can also according to EP1948323A1 collar-like surrounding the neck and the thorax be at least partially covering.
• the object of the present invention was therefore a simple, easy and inexpensive avalanche rescue system that avoids the above-mentioned disadvantages and the supportive formation of respiratory orsecurityshöhlen and a
• Another object was an improved method of filling such a system.
• the system according to the invention is characterized in that the buoyancy body is provided with a foldable skeleton and with at least one opening into the interior of the buoyancy body and connected to the environment check valve.
• the unfoldable skeleton comprises an automatically deploying linkage.
• the unfoldable skeleton is designed as an inflatable support structure and can be filled via a compressed gas unit with compressed gas container and triggering device.
• At least part of the inflatable skeleton is designed as a protector. After its targeted venting in the event of spillage, this also ensures the creation of a vital respiratory or movement cavity.
• the at least one check valve is fastened in the material of the buoyant body.
• At least one user-operable vent valve for manually venting the buoyant body may be provided, optionally in combination with at least one check valve.
• an embodiment is provided in which the buoyant body and / or the skeleton and / or parts of the skeleton is provided with an arrangement for targeted automatic ventilation, so that in an emergency the user gets his own life-saving breathing or movement cavity created without own intervention ,
• a variant may be characterized in that the arrangement for targeted automatic ventilation comprises a pressure relief valve.
• the arrangement for targeted automatic ventilation by using a combined into the interior of the buoyancy Body opening and connected to the environment check valve is realized with a pressure relief valve.
• a pressure relief valve it is also possible to choose a valve design which, after a single opening after defined pressure application, also remains open when the pressure drops again.
• Another alternative for the formation of the respiratory or movement cavity for the victim by slow collapse of the avalanche rescue system is characterized in that the arrangement for targeted automatic ventilation is realized by the use of a gas-permeable material for at least a portion of the buoyant body, optionally with an exchange of air can be provided with the environment.
• the selective discharge and the air exchange can each be provided individually or in combination.
• the opening of the, or individual valves can be done electronically and so only let the air out of certain chambers of the airbag to create targeted respiratory movement cavities.
• a sensor arrangement for the determination of emergency conditions provided and with actuators for the unfolding of the skeleton be connected.
• Various sensors could be used, such as pressure sensors, acceleration or position sensors, and much more.
• the release of skeleton deployment could also be done manually by the user.
• a method of filling the avalanche rescue system is characterized by the steps of automatically unfolding the skeleton by mounting the buoyant body and drawing ambient air over the or each check valve.
• the filling of an inflatable support structure is provided with pressurized gas for clamping the buoyant body.
• the inventive method also includes the targeted automatic ventilation after full deployment of the buoyant body or its skeleton or parts of the skeleton.
• the method may advantageously also be characterized in that an automatic triggering for the Folding of the skeleton is provided via a sensor for the determination of emergency conditions.
• a preferred variant further provides that the targeted venting takes place in the presence of overpressure via a mechanical opening and / or an electronic opening of the pressure limiting valve.
• Fig. 2a and 2b are views of a valve for use in the avalanche rescue system according to the invention and Fig. 3 illustrates in simplified form a combined check / pressure relief valve for use in the avalanche rescue system according to the invention.
• the avalanche rescue system shown in Fig. 1 consists of a special backpack 1 or even a back plate, which are connected as support elements with at least one balloon-like inflatable buoyancy body 2 of collapsible, tear-resistant material.
• the buoyancy body 2 is with a very fast
• Folded skeleton 3 provided that can develop quickly after triggering the avalanche rescue system from a folded or folded state, while the buoyancy body 2 spans to the intended shape and size.
• the unfoldable skeleton 3 can comprise an automatically deploying mechanical linkage or can also be designed as an inflatable support structure, which can be filled via at least one compressed gas unit 4 comprising at least one pressurized gas container with pressurized gas, preferably compressed air.
• This airbag system 2, 3, 4 can also be easily removed from the backpack 1, so that it can then be used as a summer backpack without airbag system.
• the mounting of the skeleton 3, for example, by blowing a support structure (in the manner of a framework) by means of C02 cartridge or a more suitable liquid gas (similar to life jackets / lifejackets) take place.
• a support structure in the manner of a framework
• a more suitable liquid gas similar to life jackets / lifejackets
• Such a volume is sufficient to inflate an optimized skeleton 3 bulging and thus "Protective pads" and the buoyancy body 2 devisspannen with a total volume of at least 150 L.
• the cartridge (s) preferably sit directly on the inflatable skeleton 3, which no pressure hoses to initiate the Gases are needed, so that losses can be avoided and time for unfolding can be achieved. Solution is done mechanically or electronically.
• a sensor arrangement for the determination of emergency conditions is provided for this purpose and connected to an actuator for the unfolding of the skeleton 3.
• the filling can be triggered by a tripping device actuated by the user.
• two or more cartridges can be installed and triggered in parallel.
• the inflation rate of the airbag is of great importance. Due to the small diameter of the tubular textile skeleton 3 this and thus also the buoyancy body 2 and the protectors are clamped faster than conventional airbags to 100%.
• a conduit system to the buoyancy body 2 is at least one in the buoyancy body 2 opening and connected to the environment check valve, via which in the course of tightening by the action of the unfolding skeletons 3 is sucked from the environment air in the buoyancy body 2.
• valve outer side, in particular the valve opening 5, of an advantageous embodiment of a check valve 6 for the avalanche rescue system according to the invention shown in FIGS. 2a and 2b is preferably covered by its own air-permeable textile to prevent penetration and closing by fine snow.
• Turbine-shaped spacers 7 may be provided to increase the suction area and prevent the closing of the valve opening 5.
• the attachment can be reinforced with a nut.
• At least one user-operable vent valve for manually venting the buoyant body 2 and / or the skeleton 3 or at least a part thereof may be provided.
• This vent valve may optionally be provided in combination with at least one check valve and allows the avalanche rescue system stowed after use again, merge or to be able to form a rescuing respiratory or movement cavity in an emergency, which blatantly increases the probability of survival, as studies have shown.
• the combination of check valve and pressure relief valve can also be realized in a valve 10, as shown in simplified form in FIG. In a cylindrical housing 11, a check valve 12 is inserted on or in a sealing ring 13.
• This sealing ring 13 is pressed by a spring 14 with a defined spring force against the pressure direction up to the sealing edge 15. If the pressure reaches a defined maximum value, the sealing ring 13 together with the non-return valve 12 seated thereon is pressed into the housing 11, which has air outlet openings 16 on the sides and underside, through which the venting proceeds. The air intake through the check valve 12 is done through these air openings 16th
• the skeleton 3 is vented into the interior of the buoyancy body 2, while the buoyancy body 2 itself to the outside, ie vented into the environment or the snow.
• the opening of the or each pressure relief valve can also be controlled electronically, preferably after a predefined time or after the occurrence of certain trigger signals from position, speed, acceleration sensors or similar monitoring organs, since the carrier of the avalanche rescue system often can not manually initiate the vent, for example he is unconscious or wedged by the snow masses, the buoyancy body 2 and / or the skeleton 3 is advantageously provided with an arrangement for targeted automatic ventilation, which is preferably used only after full deployment of the buoyancy body 2 is used.
• the gas can slowly escape from the buoyant body 2 and / or from the spanning skeleton 3 or only from subregions, and thus escape the avalanche. in the case of a total burial, which may offer life-saving respiratory and / or movement cavities.
• the arrangement for targeted automatic ventilation for example, comprise at least one pressure relief valve, possibly also be realized by using at least one combined into the interior of the buoyancy body opening and connected to the environment check valve with a pressure relief valve.
• An embodiment which can be combined therewith or used alone for an arrangement for targeted automatic venting is realized by the use of a gas-permeable material for at least part of the buoyant body, optionally with an air exchange with the environment.
• the buoyancy body in this case consists of a tear-resistant textile with a consciously used and defined air permeability (It EN ISO 9237: regulates, for example, the air and thus the oxygen permeability of fabrics as for bivouac sacks in the military sector).
• valves used according to the invention provision is advantageously made for an arrangement with at least two on the sides, preferably on at least two sides of the buoyant body.
• these valves allow the air to freely flow into the buoyant body during clamping, but then block the outflow. Only in the event of pressure on the buoyant body, as is the case in the case of a complete burial by the snow pressure, air is slowly released from the buoyancy body and there is the possibly life-saving air space in the head area of the buried.

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• Health & Medical Sciences (AREA)
• Pulmonology (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Professional, Industrial, Or Sporting Protective Garments (AREA)
• Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
• Portable Outdoor Equipment (AREA)

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Publications (2)

Family

ID=49624432

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Cited By (1)

Citations (3)

Family Cites Families (4)

• 2012
  • 2012-05-25 WO PCT/EP2012/059846 patent/WO2013174444A2/fr not_active Ceased

Patent Citations (3)

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