EP2883575B1 - Airbag system for the protection of persons and handle device for such an airbag system - Google Patents

Description

The present invention relates to an airbag system with a personal safety inflatable balloon or airbag, as it can be used in particular for the protection of persons in the event of avalanches or falls.

The invention further relates to a handle device for an airbag system, which serves to protect a person in the event of an avalanche or fall. The gripping device can be coupled to a tension element, which is designed to actuate a triggering device of the airbag system. The handle device has a grip area, which can be grasped by the person.

Such a handle device for an avalanche airbag system is for example in the WO 2010/085576 A1 described. In this case, a pulling on the handle device causes the opening of a valve of a gas cylinder with pressurized gas. The gripping device is in fact connected via a wire rope to a valve stem of a valve of the gas cylinder, which is opened by pulling on the gripping device. Then the gas flows from the gas cylinder into the airbag. In addition, a Venturi housing, in which the gas from the gas cylinder enters, sucked in ambient air, which also contributes to the inflation of the airbag.

By means of the tension element, which can be coupled to a grip device of the type mentioned, a triggering device of an airbag system can be actuated, which comprises a release piston, wherein a tip of the release piston pierces a lid of a gas cylinder with pressurized gas.

A trained for operating such a triggering device of an airbag system handle is for example in the WO 2012/055913 A2 described.

A disadvantage is to be regarded in circumstances known from the prior art gripping devices for airbag systems, the fact that it is difficult in these, the To arrange gripping device such that the person who uses the airbag system, the grip area of the grip device can take good.

Airbag systems for the protection of persons during avalanche losses are approximately in the documents DE 201 06 766 U1 . GB-A-2 162 129 . DE 12 68 999 B . US 2005/130516 . US 4635754 . US 6158380 . EP 09 579 94 B1 . US 6220909 and EP 2485810 A2 described.

An airbag system having an avalanche airbag usually includes a gas generator, which may be a gas cylinder with a pressurized gas, a triggering mechanism that releases the gas, and a venturi system that allows the inflatable balloon or avalanche airbag to be inflated by the gas. which is located in the gas cylinder, but also by means of sucked ambient air.

The known avalanche airbag systems are activated or triggered by the user himself by the user pulls on a handle, which is usually on a strap of a support device for the airbag system, which may be about a backpack.

Known airbag systems include a tripping device for triggering the gas generator, and they use various technologies for triggering the gas generator.

There are trigger systems which use pyrotechnics, namely to use a shock wave in a high pressure tube which allows a needle to be shut down to pierce a frangible wall which seals a cartridge or gas bottle. The shock wave is triggered by the user pulling a handle containing a pyrotechnic charge. The exploding pyrotechnic charge generates an overpressure wave, which is transmitted via the high-pressure tube from the handle to a triggering mechanism. The high-pressure pipe thus generates an overpressure in a chamber in which the needle is located. This causes the needle to shut down, which then pierces the fragile wall of the cartridge or gas cylinder.

This technology has major disadvantages. Primarily, the pyrotechnic systems are subject to numerous regulations, which may limit their use for professional use such as blasting or air transport. The production of the technology is also costly because it employs a handle which is provided with a pyrotechnic element and which allows only a single triggering. Furthermore, a high-pressure pipe and finally a piercing mechanism are needed.

Other systems use gas generators, which consist of gas cylinders, which are closed with a tap, which is also opened by pulling on a handle. Typically, a cable is connected to a release pin of the faucet. This release system has major disadvantages, the first being that the tightness of the faucet closing the gas bottle is not good in the medium term. The tightness of the tap is in fact ensured by a number of O-ring seals, which are constantly under the pressure of the gas cylinder of usually up to 300 bar, ie a pressure at which the O-ring seals reach their capacity limit. Another disadvantage is that every gas cylinder in the production is expensive because the tap, which is already a complex element anyway, must be approved. The user who desires to have a replacement bottle also has to spend a considerable amount, because in such a system, the gas bottle and the triggering mechanism are firmly connected.

Systems which use cams and thus no entrained energy are also known. However, they have the considerable disadvantage that they do not ensure good inflation of the airbag if the user does not pull the handle along the entirety of the necessary path. This can lead to a good functioning of the inflation system is prevented in the event that the gas generator is only partially open.

Another known system uses the energy of a spring to pierce the fragile wall of a cartridge or gas cylinder. The gas bottles can also be sold independently of the triggering system, which means the purchase of a second Gas bottle or spare bottle makes little expensive. This system further has the advantage that it is cheaper to produce than the two aforementioned systems.

The known and commercially available triggering mechanisms are currently too costly to allow all persons to obtain these who may need an avalanche airbag. It would be very advantageous to provide a triggering mechanism which is significantly less expensive to manufacture.

A triggering system that releases the gas of a gas cylinder by piercing a wall or lid often includes a tip of a needle that penetrates a portion of the fragile wall or lid of the cartridge or gas cylinder. The gas cartridge is typically screwed to the triggering device. The trigger systems are systems under very heavy loads, since the pressure in the cartridges or gas cylinders is usually of the order of 300 bar and the operating conditions can range from -40 ° C to + 50 ° C. The forces suddenly exerted on the whole of the triggering system under a pressure of 300 bar, and which are suddenly released, are considerable.

In particular, for any triggering system with a spring, the pressure released from the gas cylinder is a source of problems as it attempts to push the spring back up, hindering permanent piercing of the frangible wall. In addition, the force necessary to pierce the frangible wall or lid of a cartridge or gas cylinder, which has a pressure of 300 bar, is on the order of 500 Newtons. This also causes considerable stresses on the entirety of the triggering mechanism, which, however, should be as light and compact as possible. Finally, the force needed to trigger the mechanism should be as constant as possible, on the order of 50 Newtons, to allow each person to be able to trigger the system. With a component of a normal force of 500 Newton it is difficult, if not impossible, to obtain a constant release force of 50 Newtons in the current airbag systems.

Finally, the risks of leakage in a triggering mechanism are not negligible. Such leaks typically result from numerous seals which are intended to ensure tightness. It is advantageous to have a system that is as unaffected as possible against the risk of leakage.

Known airbag systems use a gas generator which is coupled to a venturi system which is adapted to draw in ambient air which is added to the gas provided by the gas generator to fill the inflatable bag or balloon. This venturi system advantageously allows to have a gas generator of reduced volume and weight to fill a bag or balloon of comparatively large volume, in particular of 2 to 3 times the volume provided by the gas generator itself. The vast majority of avalanche airbag systems also utilize the same geometric design, namely a gas cylinder, which is coupled to a triggering mechanism, which in turn is coupled to a venturi inflation system.

This design limits the possibilities of combining the airbag with other elements useful to hikers, mountaineers or workers, since such a geometry involves bulky airbag systems with high pressure tubes between the triggering mechanism and a venturi housing of the venturi system for certain airbag systems ,

This geometry is also very critical with regard to leaks. In fact, leakage in the triggering mechanism which releases the gas of the gas generator entails that part of the gas or gas in its entirety spreads in the environment, does not supply the venturi housing and thus prevents good inflation of the inflatable balloon. This is a critical element because the pressures used in the gas generators for the known avalanche airbag systems are on the order of 200 bar to over 300 bar. These are thus pressures in which the seals for gaseous fluids are at their limit. That's why you are often bad Inflations of inflatable balloons or airbags due to damaged seals in the triggering system.

A known system, which in the document EP 2485810 A2 illustrates the typical construction of an airbag system with a Venturi system, a puncture system and with a hose as an outlet, which is connected to a venturi housing of the Venturi system. It is easy to understand that leakage in the triggering mechanism or in the hose does not allow good inflation of the balloon.

Known airbag systems utilize a gas generator coupled to a venturi system configured to draw in ambient air which is added to the gas provided by the inflator to fill the inflatable bag or balloon. The venturi system advantageously allows having a gas generator of reduced volume and weight to fill a bag of comparatively large volume, in particular 2 to 3 times the volume provided by the gas generator itself.

The Venturi system plays a key role and is complex because it must allow inflation of the balloon, even when it is under heavy use. Therefore, known airbag venturi systems use "closed" venturi cases, namely those equipped with a check valve which allows ambient air to be drawn in, but prevents the gas contained in the inflator from escaping elsewhere than in the inflatable ones Balloon. This check valve is therefore preferably arranged upstream of a suction zone formed in the venturi housing.

The efficiency of the Venturi system is therefore a crucial element, as a more powerful Venturi system, for example, allows to inflate a larger balloon with the same gas generator, which ensures better protection. The efficiency of the Venturi system is not only associated with the efficiency of the geometry of its channel with venturi effect, but also with the facilitation of the intake of ambient air.

Known airbag systems which have a valve at the intake of Venturigehäuses have a common geometry, namely a valve which operates perpendicular to the channel with venturi effect.

Such a geometry is not ideal for ensuring good intake of ambient air. This geometry is mainly used because it allows to have a compact venturi housing while leaving passages for the intake air which are of sufficient size.

In known airbag systems, the venturi housing may be mounted on the inflatable balloon. This allows to ensure that the Venturi housing during deployment is outdoors and outside the carrying device. However, this solution has a significant limitation because the venturi housing must be connected to the triggering mechanism via a high pressure hose, with all the disadvantages that this aforementioned geometry entails.

Other known airbag systems arrange the Venturi housing on the back of the support device, in the known geometries. Before unfolding, the openings of the venturi housing are covered by the fabric of the balloon, which prevents good air intake into the balloon. In addition, the design of Venturigehäuses even with the valve, which works perpendicular to Venturi channel, that the openings can not be pressed against one of the outer walls of the backpack usually.

In the case of avalanches, the development of the avalanche takes a certain amount of time, and the user normally has at least a few seconds to trigger his airbag. Nonetheless, he has to react relatively quickly when he hears the first signs of avalanche development and causes the deployment of the airbag in a time that can be on the order of 1 to 3 seconds. In conventional airbag systems, it is known to have a handle on which the user pulls, the handle being connected to a triggering means. One of the problems of these known systems is to ensure in a situation of stress or panic that the user grips the handle quickly enough Can be found. Most of the commercially available products use a rigid T-shaped handle, which provides acceptable ergonomics.

Another problem is the risk of unintentional deployment of the airbag when the handle gets caught on an exterior object, either by incorrect movement or misoperation of a user, or even when the handle is exposed during tidying or stowage of the airbag system. Certain airbag systems intend to stow the handle in a bag. The known systems which use a bag for stowage have the disadvantage that the handle in the bag is not fixed and that it is still possible to trigger the airbag system when the handle is in the bag.

The triggering device may have been triggered, for example, by pulling on the trigger handle, and thus the tip of the needle may be in an extended position prior to mounting a new cartridge or gas bottle to the triggering system. If the user does not verify that the trigger is in its retracted, that is, not extended position, it may pierce the new cartridge or gas bottle when mounting it to the trigger system. The piercing of a gas canister or gas cylinder before it is fully assembled to the triggering system is dangerous to the user, and inflating the airbag is also dangerous in such a situation.

The known trigger systems are also relatively heavy and bulky. The weight and bulkiness are important elements for any mountain equipment.

Object of the present invention is to provide an improved grip device of the type mentioned, a support device with such a handle device and an airbag system.

This object is achieved by a gripping device having the features of patent claim 1, by a carrying device having the features of patent claim 8 and by an airbag system having the features of patent claim 15. Advantageous embodiments with appropriate Further developments of the invention are specified in the dependent claims.

The gripping device according to the invention comprises a band-shaped guide region adjoining the gripping region. The guide portion has a thickness which is smaller than a width of the guide portion. In this case, a broad side of the guide region is designed to abut at least in regions on a carrying strap of a carrying device on which the airbag system can be fixed. The band-shaped geometry of the guide portion causes the handle means to bend slightly away from the body of the wearer such as a backpacker perpendicular to the width direction of the guide portion when the handle is mounted on such a support.

The band-shaped guide region may in particular have a substantially rectangular cross-section with short narrow sides and long broad sides, wherein in particular the corner regions may be rounded. Correspondingly, an elliptical or oval cross section of the band-shaped guide region is also advantageous.

The band-shaped guide area is so very flexible in the direction away from the body of the person. In the transverse direction or width direction of the guide region, the handle device, however, is very stiff. This is due to the band-shaped shape of the guide portion, which is flat and wide. This geometry ensures that the grip region can be grasped particularly well by the person who wishes to actuate the triggering device of the airbag system by means of the tension element. Thus, it can be ensured, in particular, that the grip device held on the carrying device is arranged at a desired and always constant position relative to the body of the person using the carrying device. As a result, an improved grip device is created.

In an advantageous embodiment of the grip device, the guide region has an inherent rigidity, which ensures a spacing of the grip region from the support strap when a portion of the grip region adjoins the grip region Guide portion exits a guide device, which is provided on the strap.

Because of the band-shaped design of the guide region, it is true that this can follow the course of the support belt of the support device, provided that the guide region of the grip device is arranged in the guide device. However, the inherent rigidity of the guide region ensures that the grip region has a certain distance from the support strap of the support device when the guide region protrudes a little way out of the guide device. This spacing of the grip area from the carrying strap is preferably supported by the fact that the grip area is stiff, that is to say in particular has a significantly greater inherent rigidity than the guide area.

Keeping the grip portion away from the strap and thus from the body of the person using the strap means that the person can easily see the grip area even when the person wears a voluminous jacket such as a down jacket. This is a great advantage when it comes to quickly trigger the airbag system, such as an avalanche has resolved.

In order to ensure that a sufficiently long section or partial region of the guide region is always accommodated in the guide device provided on the carrying strap, it is advantageous if the guide region has a comparatively long length.

Accordingly, it has proven to be advantageous if a length of the guide region is at least about 3 cm. However, the length of the guide portion may preferably be up to about 20 cm. In particular, the length of the guide region can be approximately equal to the length of the handle region and can be from about 10 cm to about 15 cm.

By providing a correspondingly large length of the guide region, it can be particularly well ensured that the guide region is always guided well in the guide device which is provided on the carrying strap of the carrying device.

As a further advantage, it has been shown that a friction coefficient of the guide portion is less than a friction coefficient of the grip portion. Thus, it is ensured that the guide region is guided in the guide device in a particularly low-friction manner when the person pulls on the grip device in order to actuate the triggering device of the airbag system. The low friction coefficient of the guide area thus ensures good sliding of the guide area along the material which forms the guide device.

On the other hand, the high coefficient of friction of the gripping area, on the one hand, ensures that the person using the gripping device can handle the gripping device safely and easily. Furthermore, it can be ensured that the grip area has a haptically pleasant surface.

In order to provide a guide region with a low coefficient of friction, the guide region may in particular be formed from a plastic such as polyamide. However, a variety of other plastics for forming the guide region can be used, which ensure a low-friction sliding of the guide region along the guide device.

As a further advantage, it has been shown, when the guide portion is formed of a plastic, which forms a base body for the grip area. In this case, in the grip area, a thermoplastic elastomer, in particular a rubber material, at least partially covers the base body. In this way, it is particularly easy to provide different coefficients of friction of the grip area and the guide area, wherein in particular a two-component injection molding method can be used.

The base body for the grip region, in particular in such an embodiment, preferably has a greater thickness than the guide region. For then a comparatively thin coating with the thermoplastic elastomer is sufficient to give the handle area the desired properties.

As further advantageous, it has been shown, if at least two fastening devices are provided in the grip area, by means of which the tension element can be coupled to the grip device. Here, the at least two fastening devices are spaced apart in a longitudinal direction of the grip device. This makes it possible to adjust in a traction element of given length yet particularly simple different distances of the grip portion of the end portion of the tension element, which is releasably held on the handle device. Thus, it can be ensured in particular that pulling on the grip device acts directly on the tension element, so that the triggering device can be actuated particularly reliably. In addition, the height of the grip device relative to a body part of the person who uses the grip device, for example with respect to the shoulder of the person, can be adjusted particularly well and individually.

Namely, a first person may find it more comfortable to grasp the grip device at a lesser distance from, for example, the shoulder, while a second person would prefer to grip the grip device a greater distance from the shoulder. This fact can be accommodated by the provision of two or even three, four or more fasteners. The person can therefore select and adjust the appropriate arrangement of the handle area in height.

It is particularly convenient if the grip device in the grip region has a thickness which is greater than the thickness of the guide region. Furthermore, it is advantageous for gripping the grip area if it is T-shaped. In this case, in particular, a region aligned perpendicular to a transverse bar of the Ts can have a substantially elliptical or round cross section.

The carrying device comprises the gripping device according to the invention, which is arranged on the carrying device. In this case, a section of the guide area adjoining the grip area emerges from a guide device which is provided on the carrying strap.

The guide device can be formed by an envelope element arranged on the carrying belt. This wrapping element receives according to the guide region of the handle device. When pulling on the handle region, the guide region therefore slides through the envelope element formed in the manner of a tunnel. The enveloping element may be formed as a sleeve completely enclosing the guide area in the width direction. Alternatively, a band or the like may be attached to the carrying strap and, in cooperation with the carrying strap, form a wrapping enclosing or enclosing the guide portion in the width direction.

Preferably, the enveloping element is comparatively narrow in order to prevent the guide region in the enveloping element from having too much play and tilting when pulled on the grip device in the guiding device. Thus, a particularly process-reliable guidance of the guide region of the grip device and thus a reliable triggering of the airbag system can be ensured.

Additionally or alternatively, the guide means may be formed by a plurality of arranged on the strap loops or straps. Here, the loops or tabs are then spaced from each other in a longitudinal direction of the grip device arranged on the strap. Again, the individual loops or tabs may be formed as the guide portion in the width direction completely enclosing flexible textile materials, or the strap may form the respective loops or tabs in cooperation with attached to this bands or the like.

Preferably, a longitudinal extension direction of the guide device forms an angle with a longitudinal extension direction of the support belt. In this way it can be ensured that the grip device of the person is presented under a favorable angle for gripping the grip area.

For example, it can be achieved that the guide device centrally places the grip area in front of the thorax of the person carrying the carrying device. This can be done, for example, by the Carrying strap is designed as a shoulder support belt, and the guide means extends obliquely to a longitudinal direction of the shoulder belt.

The angle formed by the guide device and the carrying strap can be between about 1 ° and about 30 °, ie in particular 15 ° +/- 15 °. Thus, depending on the length of the guide area and the grip area, a corresponding orientation of the grip area towards the center in front of the person's chest can be ensured. This is especially true when the angle is between 10 ° and 25 °.

As a further advantage, it has been shown that at least two guide means are arranged on the support belt, whose longitudinal extension directions form an angle with each other. Thus, the person wearing the carrying device can select which guiding device he wishes to use for holding and guiding the guide region of the gripping device. This can make the person dependent on their size and / or of where the grip area of the grip device should be in order to be particularly well and safely grasped by hand.

The two guide devices can intersect, that is, they can be arranged in sections one above the other. Thus, guide devices with correspondingly different angles relative to the longitudinal direction of the support belt can also be realized on a comparatively narrow carrying strap.

It is also advantageous if a closable pocket is arranged on the carrying strap, which pocket is designed to store the handle device. Thus, it can be ensured that, when the grip device is stowed in the pocket, there is no undesired triggering of the airbag system. The bag may have a zipper and / or a Velcro closure or the like for closing.

By stowing the grip device in the bag can be taken to ensure that the handle device is then virtually locked when they are in the closed Bag is housed and thus hidden. On the other hand, the grip device is ready for use when it is accessible and visible when the bag is open.

In a further advantageous embodiment, at least one securing element is arranged on the carrying belt, by means of which the grip area of the gripping device secured in position on the carrying strap can be fixed. So it can be particularly easy to ensure that the grip device is not operated unintentionally. As the at least one securing element, in particular, a holding strap can be used, which secures the grip area of the grip device against a pulling movement.

Finally, it has proven to be advantageous if the airbag system is arranged on the carrying device, wherein the gripping device is coupled to the tension element designed to actuate the triggering device of the airbag system. Then, if necessary, the airbag system can be triggered by pulling the handle device.

The airbag system comprises the gripping device according to the invention or it is arranged on the carrying device. Possible embodiments of the airbag system and thus further aspects of the invention are described below.

In the present case, an airbag system is described which preferably comprises a venturi housing and a triggering system for triggering a gas generator which is mounted on the venturi housing and which comprises at least one gas cylinder with gas under pressure and with a cover which is designed to be pierced. The venturi housing is designed to suck in ambient air through the venturi effect when the pressurized gas is released.

The lid of the gas cylinder is a wall portion thereof, which is easier to pierce, cut through, or destroyed in such a way as another wall portion of the gas cylinder. Consequently, when the lid is pierced, the pressurized gas can escape from the gas cylinder.

The triggering system preferably comprises a triggering device with a spring and with a trigger piston, which is provided with a puncture, for example in the form of a needle, wherein the trigger piston is acted upon by the spring with a pressure, wherein the spring is compressed prior to triggering.

The needle or similar puncturer is in particular a pin-shaped element which preferably has a tip in order to be able to easily pierce the cover or the like of the pierceable wall of the gas cylinder. The needle may in particular be formed integrally with a base body of the release piston.

A triggering element of the triggering device is preferably designed to retain the triggering piston and can be connected to a handle via a pulling element, such as a cable.

The tension element preferably makes it possible to actuate a triggering element of the triggering device by moving the triggering element from a position holding the triggering piston into a position which releases the triggering piston. In the position retaining the release piston, the release piston is under the pressure of the compressed spring before triggering. On the other hand, when the release piston is released, the spring causes the release piston, and with it the needle, to be abruptly moved towards the lid of the gas cylinder, with the needle piercing the lid. The tension element may be a flexible element such as a cable, a Bowden cable, a rope, a chain or a band. However, it can also be an intrinsically stiff tension element in the manner of a pen or rod are used.

According to a preferred embodiment, the triggering device comprises the triggering element which retains the triggering piston by means of at least one ball or the like locking element.

The locking element ensures that the release piston located in its untripped position does not move in the direction of the cover of the gas cylinder moves, as long as the trigger element has not been operated, in particular by pulling on the tension element. In particular, at least one ball locking the release piston in its untriggered position but also at least one preferably roller-shaped or otherwise circular-shaped body may be used as the locking element. In particular, however, a locking element in the form of a ball is particularly well suited both for blocking the release piston and for releasing or releasing it. Namely, it can be ensured by means of at least one ball over the life of the triggering device away a particularly good smoothness of the trigger mechanism.

According to one aspect, which is not part of the invention, the airbag system for the protection of a person in the case of an avalanche outlet comprises a venturi housing, which can be coupled to an inflatable balloon or airbag and which is provided with a valve. The airbag system comprises a triggering system for triggering a gas generator, which comprises at least one gas cylinder with pressurized gas. Here, a triggering device of the triggering system is at least partially disposed in the interior of Venturigehäuses.

In other words, the Venturi housing encloses the triggering device at least partially. This has the advantage that in case of leakage of the triggering device, the gas which is provided by the gas generator is used for inflating the inflatable balloon and is not lost. Thus, the gas provided by the gas generator can be utilized to a large extent.

The gas generator may comprise at least one gas cylinder with pressurized gas or be formed by such a gas cylinder. The inflator thus provides gas to inflate the balloon or airbag.

It is advantageous to integrate the triggering device into the interior of the venturi housing in order to reduce the bulkiness of the airbag system, but also to ensure that leakage in the triggering device causes the airbag or balloon to be inflated despite the leakage. This ensures that yourself the balloon or airbag unfolds safely and reliably to provide good protection of the person using the airbag system. An aspect not part of the invention therefore consists in the integration of the triggering device into the interior of the venturi housing.

The venturi housing is part of a venturi system which includes a nozzle located in the venturi housing. Through this nozzle, the gas flows from the gas cylinder after the airbag system is triggered. The venturi housing surrounds a cavity through which ambient air and / or gas can flow from the gas cylinder. From the nozzle, the gas flows into a part of the Venturigehäuses, which is designed as a channel or outlet channel with venturi effect.

The flow of gas at high velocity into the duct or venturi Venturi creates a zone of negative pressure in an area of the duct surrounding the nozzle and upstream of that area. Due to the Venturi effect, this negative pressure causes the ambient air to be sucked into a suction region or a suction zone of the Venturi housing via at least one opening which can be closed by means of the valve, in particular check valve, closable air inlet or the like. The suction area is thus that portion of the cavity enclosed by the venturi housing, through which ambient air mainly flows when filling the inflatable balloon or airbag and little or almost no gas from the gas cylinder.

Therefore, in particular, at least the partial region of the triggering device, in which the transfer of the gas flowing out of the gas cylinder into the nozzle leading to the intake of the ambient air via the venturi effect, is preferably arranged within the Venturi housing.

The triggering device preferably comprises the spring and the triggering piston, which is provided with the needle, wherein the release piston is pressurized by the spring, and wherein the spring is compressed prior to triggering. The triggering device preferably further comprises the triggering element, which is adapted to retain the release piston by means of the at least one locking element.

In particular, furthermore, a further spring can be arranged within the venturi housing which pressurizes the triggering element in its position holding the release piston under prestressing.

The trigger element can be connected via the tension element with a handle. The person using the airbag system can pull on the handle to inflate the inflatable balloon or airbag by triggering the gas generator, for example piercing the lid of the gas cylinder by means of the needle. Accordingly, when the gas generator is triggered, the needle protrudes so far out of the venturi housing that the needle can pierce the lid of the gas cylinder or gas cartridge fixed to the venturi housing. However, a tip of the needle remains within an imaginary envelope of the venturi housing. In particular, when the gas generator is triggered, the tip of the needle can be in the region of a receptacle or chamber for a neck of the gas cylinder having the lid, but without protruding from the space bounded by walls of the receptacle. Therefore, the person using the airbag system can not stick to the tip of the needle unless the person inserts a body part such as a finger into the receptacle provided for the neck of the gas cylinder.

The tension element is preferably guided through an opening in the venturi housing into the environment outside the venturi housing. Outside the venturi housing, the pulling element is preferably connected to the handle which the person can pull to trigger the airbag system.

The triggering system preferably comprises the tension element, which may be connected in particular in an end region with the handle. At least one further end region of the tension element can likewise be arranged in the venturi housing.

Preferably, as components of the triggering device, the release piston and the spring biasing the release piston are arranged at least partially and at least a portion of the triggering element within the Venturi housing.

Furthermore, a body is preferably a component of the triggering device, in which the release piston is received and guided. Accordingly, the body has a receiving space for the release piston. In the receiving space, the release piston can move when it is moved from its untripped position to the deployed position in which the needle pierces the lid of the gas cylinder. Also, the body of the triggering device can be arranged at least partially and preferably completely within the Venturigehäuses. Then namely the bulkiness of the airbag system is particularly low.

Through the body, a chamber is preferably provided, which is also referred to as a puncture chamber, since in this takes place the piercing of the lid of the gas cylinder by means of the needle. From this puncture chamber, the gas flows to the nozzle, from which the gas escapes when the airbag system is triggered at high speed. The puncture chamber is thus in fluid communication with the nozzle. Furthermore, the puncture chamber preferably provides the receptacle for the neck of the gas cylinder, whose lid is to be pierced and which can be fixed in the puncture chamber, for example by screwing.

By arranging the triggering device inside the venturi housing, a particularly reliable and compact triggering mechanism is provided. Furthermore, an airbag system with a gas generator and a robust Venturi system for the intake of ambient air is provided, which allows a reliable and safe deployment of the airbag. In addition, such an airbag system is inexpensive to manufacture and assemble.

Preferably, the triggering device is disposed within the intake of Venturigehäuses. Then the trigger does not hinder the Outflow of the gas from the nozzle, which opens into the outlet channel with venturi effect.

In particular, the airbag system may also include the inflatable balloon, such as when the venturi housing is coupled to the inflatable balloon.

The triggering device, which is arranged at least partially in the venturi housing, can be designed in particular for opening a cock or a valve of a gas cylinder, whose gas flows into the Venturi housing when the cock or valve is open.

According to a further aspect, which does not form part of the invention, the airbag system for the protection of a person in the case of an avalanche outlet comprises a triggering system for triggering a gas generator comprising at least one gas cylinder with pressurized gas and a lid formed thereto to be pierced. The triggering system comprises a triggering device with a spring and a trigger piston, which is provided with a needle for piercing the lid. The release piston is pressurized by the spring, the spring being compressed prior to release. The triggering device comprises a triggering element, which is designed to retain the triggering piston by means of at least one locking element. The trigger element can be actuated via a tension element.

Here, the triggering element is arranged in the interior of the release piston. Thus, an airbag system is provided with a particularly compact triggering device. Furthermore, it is particularly easy to ensure the same alignment or co-alignment of the trigger element and the release piston. Thus, it is particularly easy to prevent the release piston and the trigger element are inclined to each other and it comes to a jamming of the trigger element in the release piston when you press the trigger. This is especially true in a symmetrical arrangement of the trigger element within the release piston, in which preferably a central axis of the trigger element is aligned with a central axis of the release piston.

Jamming or wedging of the trigger element in the release piston is significantly more difficult to prevent when the trigger element is arranged outside of the release piston and should run approximately parallel to the release piston. For then it is difficult to ensure an important for the functioning of the triggering device, constant center distance between a movement axis of the triggering element and a movement axis of the release piston. By providing the release element arranged in the interior of the release piston, such problems can be avoided in a particularly simple and cost-effective manner. In addition, the bulkiness of the triggering device is particularly low, and the triggering device can be accommodated very easily within the Venturigehäuses.

According to a further aspect, which does not form part of the invention, the airbag system for the protection of a person in the case of an avalanche outlet comprises a triggering system for triggering a gas generator comprising at least one gas cylinder with pressurized gas and a lid formed thereto to be pierced. The triggering system comprises a triggering device with a spring and a trigger piston, which is provided with a needle for piercing the lid. The release piston is pressurized by the spring, the spring being compressed prior to release. The triggering device comprises a triggering element, which is designed to retain the triggering piston by means of at least one locking element. The trigger element can be actuated via a tension element.

Here, a needle of the release piston is guided in a channel of a body which receives the release piston. The channel is provided with a seal such that the pressure released by the gas after piercing the lid, which is exerted on the trigger piston, is exerted essentially only on the needle of the trigger piston.

In other words, the pressure of the gas flowing out of the gas cylinder acts only on the cross-section of the needle of the release piston arranged in the channel in the body. Due to the fact that the pressure of the gas emerging from the gas cylinder only on the very small compared to the release piston Cross-sectional area of the needle acts, the force is very low, which acts against the force of the spring of the triggering device on the release piston. So it can be particularly easy to ensure that the release piston and with this the lid piercing needle remains in the tripped position. Then the pressurized gas can flow out of the gas cylinder particularly well and completely.

The release piston may in particular have a base surface from which the needle forming part of the release piston protrudes. When triggered tripping this base surface is then limited to a stop surface in conditioning, which is formed in the body, and the receiving space for the release piston. At this stop surface of the channel begins, and he reaches up to a chamber, which is referred to as puncture chamber. In this puncture chamber, the puncturable lid of the gas cylinder is arranged such that the gas flowing out into the puncture chamber can flow via a nozzle into a venturi housing of the airbag system.

Characterized in that the pressure of the gas acts only on the arranged in the channel of the body needle and not on the base surface of the release piston, the release piston can hold by means of the release piston with the pressure acting spring particularly easily in its triggered position.

The force provided by the spring for triggering the release piston can thus be utilized to a great extent. Thus, the spring only needs to be dimensioned as is necessary for piercing the lid, and it does not need or at most hardly the pressure acting on the release piston of the gas flowing out of the gas cylinder to be taken into account in a design of the force of the spring.

There is provided such a release mechanism which is more reliable, more compact, and cheaper to manufacture than existing airbag systems.

Furthermore, it is thus ensured that the balloon or airbag unfolds safely and reliably in order to provide good protection for the person using the airbag system.

The at least one seal can be arranged in the channel and / or on the needle. In particular, if the seal is arranged on the needle and thus moves along with the needle during movement of the needle along the channel, the seal can be particularly well attached and / or replace if necessary.

According to a further aspect, which is not part of the invention, the airbag system for the protection of a person in the case of an avalanche outlet comprises a Venturigehäuse coupled with an inflatable balloon, which is provided with a valve and comprises a Venturi effect outlet channel. The airbag system further comprises a triggering system for triggering a gas generator, which comprises at least one gas cylinder with pressurized gas. The valve allows intake of ambient air due to the Venturi effect. In this case, a closure body of the valve is movably arranged along an axis of the valve, which runs at least substantially parallel to the outlet channel with venturi effect. This leads to a particularly simple and extensive inflation of the inflatable balloon or airbag.

It has been shown that for the optimal functioning of the Venturi or outlet channel with venturi effect a valve whose axis is aligned for the closure body parallel to the outlet channel or channel with venturi effect, allows a particularly high efficiency and a particularly powerful inflation of the airbag or balloon. Up to 100 percent additional pressure can be achieved in an airbag with a standard volume of 150 liters. This may be explained by the fact that such geometry of the valve facilitates more laminar flow of the aspirated air as compared to a known airbag venturi system having a valve with an axis perpendicular to the venturi channel. Having a valve that has an axis that is parallel to the venturi channel is therefore an advantage that could be proven by measurements.

It is thus ensured that the balloon or airbag unfolds safely and reliably in order to provide good protection for the person using the airbag system.

Furthermore, an airbag system with a gas generator and a robust Venturi system for the intake of ambient air is advantageously provided, which allows a reliable and safe deployment of the airbag and which is inexpensive to manufacture and assemble.

In particular, the airbag system may also include the inflatable balloon, such as when the venturi housing is coupled to the inflatable balloon.

According to a further aspect, which does not form part of the invention, the airbag system for the protection of a person in the case of an avalanche outlet comprises a triggering system for triggering a gas generator comprising at least one gas cylinder with pressurized gas and a lid formed thereto to be pierced. The triggering system comprises a triggering device with a spring and a trigger piston, which is provided with a needle for piercing the lid. The release piston is pressurized by the spring, the spring being compressed prior to release. The triggering device comprises a triggering element, which is designed to retain the triggering piston by means of at least one locking element. The trigger element can be actuated via a tension element.

In this case, the needle has a flat area, which allows a tool for resetting to press against the flat area of the needle. The reset tool is designed to re-tension the release piston.

By depressing the release piston, the tool presses against the flat area of the needle and not permanently against a part of the needle which serves to cut or puncture the lid so as to preserve the ability of the needle to pierce the lid ,

In addition, it can be prevented so that the needle bends when resetting the release piston, so when you spend the same in its untripped position in which the spring is compressed. This is especially true when the planar region is formed as the bottom of a bore or blind hole which is located in the center of the needle.

For resetting or tensioning the release piston, the tool may have a pin or the like rod-shaped component, the end of which is in reset with the flat portion of the needle in abutment.

Thus, an airbag system is advantageously provided which is easily recoverable and which reduces the risk of incorrect operation and in particular of the unwanted piercing of the gas cylinder when it is mounted on the triggering system.

The airbag system is also particularly reliable because the triggering device can be reset particularly easily and safely.

Furthermore, it can be ensured that a new gas cylinder is not damaged when attached to the triggering system. When using an undamaged gas cylinder, the balloon or airbag can deploy safely and reliably and provide good protection for the person using the airbag system.

The pin of the tool can be accommodated in particular in a base body of the tool, which has a thread which is equal to a thread of the gas bottle which can be mounted on the triggering system. Thus, when screwing in this base body in a provided on the side of the trigger device thread the release piston easily and safely spent in its untripped position, so reset and tightened accordingly.

For easy actuation of the tool for resetting, a handle may be arranged on the base body, for example in the form of a pin or rod guided through the base body. Such a handle makes screwing in the Basic body in the provided on the side of the triggering thread particularly simple.

According to a further aspect, which is not part of the invention, this relates to the tool for resetting.

According to a further aspect, which is not part of the invention, the airbag system for protection of an individual in the event of an avalanche outlet is arranged on a carrying device and comprises a Venturigehäuse coupled with an inflatable balloon, which is provided with a valve and comprises a Venturi effect outlet channel , The airbag system further comprises a triggering system for triggering a gas generator, which comprises at least one gas cylinder with pressurized gas. An area of the venturi housing has at least one air inlet for ambient air. A sealing surface of a closure body of the valve designed to close off the air inlet and the region of the Venturi housing are in this case arranged substantially parallel to one another and adjacent to an outer wall of the carrying device.

Another parameter which greatly affects the efficiency of the venturi system is the position of the at least one air inlet of the venturi housing relative to the support on which the airbag system is located, relative to the inflatable balloon and to the contents of the backpack in the event in that the carrying device is a backpack.

Due to the fact that the region of the Venturi housing having at least one air inlet adjoins the outer wall of the bearing direction, only an air-permeable region needs to be provided in the outer wall of the bearing direction in order to ensure particularly unhindered entry of the ambient air into the Venturi housing. Namely, when the valve closure body is moved to its open position, the valve allows the ambient air to be drawn in via the venturi effect. The fact that the sealing surface of the closure body of the valve is arranged parallel to the region of the Venturigehäuses, when opening the valve - so when you remove the Sealing surface of the area - to ensure a particularly largely laminar flow of ambient air into the venturi housing.

It is thus very advantageous to provide an airbag system with a venturi housing, the air intake of which is used for sucking in the ambient air pressed against an outer wall of a backpack, and which additionally has the valve, which works parallel to the outlet channel with venturi effect.

In this way it can be ensured that the balloon or airbag unfolds safely and reliably in order to provide good protection for the person using the airbag system. Thus, an airbag system is advantageously provided with a gas generator and a robust Venturi system for the intake of ambient air, which allows a reliable and safe deployment of the airbag and which is inexpensive to manufacture and assemble.

In particular, the airbag system may include the inflatable balloon, such as when the inflatable balloon is connected to the venturi housing.

1. 1. Ein Airbagsystem für den Schutz einer Person im Fall eines Lawinenabgangs, umfassend ein mit einem aufblasbaren Ballon koppelbares Venturigehäuse, welches mit einem Ventil versehen ist und einen Auslasskanal mit Venturieffekt umfasst, und ein Auslösesystem für das Auslösen eines Gasgenerators, welcher wenigstens eine Gasflasche mit unter Druck stehendem Gas umfasst, wobei das Airbagsystem eine Griffführung umfasst, welche dazu ausgebildet ist, einem Griff einen Winkel von 20° bis 60°bezogen auf einen Tragriemen einer Trageinrichtung zu verleihen. Dies dient dazu, den Griff vom Körper der Person fernzuhalten. Dadurch kann der Griff von der Person besonders leicht aufgefunden und ergriffen werden.
2. 2. Ein Airbagsystem für den Schutz einer Person im Fall eines Lawinenabgangs, angeordnet an einer Trageinrichtung mit Tragriemen und umfassend ein mit einem aufblasbaren Ballon koppelbares Venturigehäuse, welches mit einem Ventil versehen ist und einen Auslasskanal mit Venturieffekt umfasst, und ein Auslösesystem für das Auslösen eines Gasgenerators, welcher wenigstens eine Gasflasche mit unter Druck stehendem Gas umfasst, wobei wenigstens einer der Tragriemen eine Tasche aufweist, welche mit einem oder zwei seitlichen Löchern versehen ist, welche dazu ausgebildet sind, einen Griff gegen eine Fehlauslösung zu verriegeln, sobald der Griff in der Tasche verstaut ist.
3. 3. Airbagsystem nach Punkt 1 oder 2, wobei es eine Auslösegriffeinrichtung umfasst, welche den Griff und eine Führungseinrichtung umfasst, wobei die Führungseinrichtung einen Stützarm oder ein Stützrohr umfasst, welches mit einer Griffführung gekoppelt ist, wobei die Führungseinrichtung dazu ausgebildet ist, den Griff in einer von einem Tragriemen einer Trageinrichtung für das Airbagsystem entfernten Position anzuordnen, und zwar unter einem Neigungswinkel zwischen 20° und 60°bezogen auf den Tragriemen.
   Dies dient dazu, den Griff von dem Tragriemen zu entfernen und das Ergreifen des Griffs bei einer Notfallauslösung des Airbagsystems durch die Person zu erleichtern.
4. 4. Airbagsystem nach Punkt 3, wobei der Stützarm oder das Stützrohr mit der Griffführung auf lösbare Weise gekoppelt ist.
   Der Stützarm oder das Stützrohr kann also in vorteilhafter Weise auf lösbare Weise mit der Griffführung gekoppelt sein. Dies dient dazu, den an dem Stützarm oder Stützrohr angeordneten Griff von der Griffführung entkoppeln zu können, um den Griff zu verstauen, wenn das Airbagsystem nicht benutzt wird.
5. 5. Airbagsystem nach einem der Punkte 1 bis 4, wobei der Tragriemen der Trageinrichtung eine Tasche mit ein oder zwei Öffnungen umfasst, welche auf der Höhe des Griffs angeordnet sind, um ein oder zwei seitlichen Fortsätzen des Griffs ein Hindurchtreten durch die Öffnung oder die Öffnungen zu ermöglichen, wenn der Griff in der Tasche verstaut ist.

Other aspects concern the following points:

1. An airbag system for protecting a person in the event of an avalanche, comprising a Venturigehäuse coupled with an inflatable balloon, which is provided with a valve and a Venturi effect outlet channel, and a triggering system for triggering a gas generator, which at least one gas cylinder with pressurized gas, wherein the airbag system comprises a handle, which is adapted to give a handle an angle of 20 ° to 60 ° relative to a strap of a support means. This is to keep the handle away from the person's body. As a result, the grip of the person can be found and taken very easy.
2. 2. An airbag system for the protection of a person in the event of an avalanche, arranged on a carrying device with carrying strap and comprising a Venturigehäuse coupled with an inflatable balloon, which with a valve and a triggering system for triggering a gas generator comprising at least one gas cylinder of pressurized gas, at least one of the carrying straps having a pocket provided with one or two lateral holes provided therewith are designed to lock a handle against a false trip as soon as the handle is stowed in the bag.
3. 3. The airbag system according to item 1 or 2, wherein it comprises a trigger handle device comprising the handle and a guide device, wherein the guide means comprises a support arm or a support tube which is coupled to a handle, wherein the guide means is adapted to the handle in to arrange a position remote from a support strap of a support device for the airbag system, at an inclination angle between 20 ° and 60 ° relative to the support strap.
   This serves to remove the handle from the strap and to facilitate gripping the handle in an emergency deployment of the airbag system by the person.
4. 4. Airbag system according to item 3, wherein the support arm or the support tube is coupled to the handle guide in a detachable manner.
   The support arm or the support tube can thus be coupled in an advantageous manner in a detachable manner with the handle. This serves to be able to decouple the arranged on the support arm or support tube handle from the grip guide to stow the handle when the airbag system is not used.
5. 5. The airbag system according to any one of items 1 to 4, wherein the carrying strap of the carrying means comprises a pocket having one or two openings disposed at the level of the handle for passing one or two lateral extensions of the handle through the opening or openings to allow when the handle is stowed in the bag.

To be particularly easy to grasp, the handle may have an angle of about 45 ° with respect to a vertical axis, al so about the center of Chest of a carrying the wearer to be aligned. Furthermore, the handle from the strap of the backpack or the like carrying device may be at least a few inches away. The handle is then seen from the person obliquely forward and diagonally downwards away.

The airbag system may thus comprise a handle which has a T-shape and a defined angle and a defined distance relative to the user, but is also locked when stowed in a bag to prevent any false triggering. Such a handle represents a particularly advantageous grip.

It is such an airbag system with a manual or semi-automatic release system provided, which allows the user a rapid and secure deployment of the airbag by means of an ergonomic and practical handle, which also allows to avoid unwanted triggering.

The triggering system may include a trigger piston with a needle formed to pierce a lid of the gas cylinder. In this case, a direction of movement of the release piston preferably forms an angle when the cover is pierced by a longitudinal extension direction of an outlet channel of a venturi housing of the airbag system. This makes it particularly easy to accommodate the airbag system in a carrying device such as a backpack. Because then the gas cylinder mounted on the triggering system also forms an angle with the outlet channel of the venturi housing.

The airbag system can be accommodated particularly well in the carrying device if the direction of movement of the release piston and the longitudinal extension direction of the outlet channel form an angle of substantially 90 °. Then, namely in upright in Rucks ack or the like carrying gas cylinder arranged Venturigehäuse lying in the backpack can be arranged, and in particular lying in an upper region of the backpack.

As a further advantage, it has been shown, when a triggering device of the triggering system comprises a triggering element, which comprises an inclined surface between about 1 ° and about 20 °. Here, the surface is adapted to arrive at triggering of the gas generator with at least one locking element in abutment, by means of which a release piston of the triggering device is held in its untripped position.

The inclined surface thus ensures a release of the locking element, such as when the trigger element is pulled against the direction of a pressing on the trigger element spring. Such an inclination of the surface ensures that the locking element can move particularly well along the surface, which leads to the triggering of the release piston. This is especially true when the surface has a slope between about 10 ° and about 18 °. In particular, the inclination of the surface may be, for example, about 14 °.

With such an inclination of the surface can be achieved in a small space, a displacement of the at least one locking element from the release piston blocking position in the release piston releasing position. In addition, by specifying such an inclination, a friction between the at least one locking element, which may be designed in particular as a ball, and the triggering element when releasing the at least one locking element can be kept particularly low.

In particular, when a respective locking element, in particular in the form of a ball, is arranged on both sides of the triggering element, the inclined surface can be provided in a particularly simple manner by the triggering element tapering in a region having the inclined surface.

Furthermore, a chamber in a body, which receives and guides a trigger piston of the trigger system, is provided with an inclined surface. The inclined surface is adapted to pinch at least one locking element between a triggering element of a triggering device of the triggering system and the inclined surface. Here, the at least one locking element between the trigger element and the inclined surface clamped when the triggering device is in its untripped position, in which the release piston is pressed by a spring against the at least one locking element.

By providing such an inclined surface, on the one hand, it can be ensured that the at least one locking element blocks the trigger piston, as long as the triggering device is in its untriggered position or in its untriggered state. However, by providing the surface which is inclined toward the triggering element, it can also be ensured that, upon actuation of the triggering element, the at least one locking element moves into its position releasing the triggering piston. In this case, in particular, an inclination between about 40 ° and about 50 °, in particular of about 45 °, has proven to be particularly suitable for non-triggered triggering device to block the release piston and when triggering a moving the at least one locking element in its releasing the release piston position to effect.

Preferably, a needle of the triggering system has an area which traverses a passage in a body which guides a triggering piston of the triggering system. The channel connects a puncture chamber, with which the gas cylinder of the gas generator can be coupled, and a chamber in the body with each other, in which the release piston is accommodated. Here, a seal between the channel and the region of the needle is arranged, which traverses the channel.

The seal advantageously ensures that the gas flowing from the gas cylinder into the puncture chamber can not enter the chamber in which the release piston is received. Thus, it is particularly easy and largely ensure that the release piston remains in its tripped position and the needle piercing the lid of the gas cylinder does not leave again its position piercing the lid.

Preferably, a triggering device of the triggering system, which comprises a release piston in a body, inside a Venturigehäuses in one Air intake zone arranged. In this case, the air intake zone is formed in the Venturi housing between a valve and a venturi exhaust passage, the venturi exhaust passage providing ejection of a mixture of ambient air and gas coming from the gas generator. Thus, the body in which the release piston is received does not disturb the flow of the mixture of the ambient air and the gas in the outlet channel. In addition, it is particularly easy to provide the space to be provided for the abovementioned components of the triggering device in the air intake zone of the Venturi housing.

As further advantageous, it has been found that a Venturi vent outlet duct of a Venturi housing is in the form of a tube and adapted to be inserted into and secured to an opening of an inflatable balloon. Thus, the balloon can be inflated in a particularly favorable manner in terms of flow technology.

Furthermore, a venturi housing in which a triggering device of the triggering system is mounted may comprise at least one air inlet and one outlet for a mixture of gas and ambient air. Here, the at least one air inlet and the outlet are aligned in substantially the same direction that a main direction of the air flow entering the Venturi housing is substantially parallel to a main direction of a flow of the mixture of the ambient air and the gas, which exits the venturi housing. By such a configuration and arrangement of the at least one air inlet and the outlet, a particularly uniform, laminar flow of the ambient air and the mixture of the ambient air and the gas can be ensured by the venturi housing.

Preferably, a needle of the triggering system has at least one constricted area and / or at least one channel and / or at least one depression, which is arranged between a sharp end area of the needle and a further area of the needle, which is arranged in a channel. Here, the channel connects a puncture chamber and a chamber for guiding a release piston of the trigger system with each other. The at least one narrowed region and / or the at least one channel and / or the at least one Recess is designed to allow a gas stream flowing out of the gas generator in the puncture chamber. Thus it can be ensured that in the constricted region or channel or in the depression which extends along a longitudinal axis of the needle, the gas can flow past the needle into the puncture chamber. In addition, the needle can be comparatively solid and therefore more stable and resilient than a hollow needle.

Preferably, a plurality of channels, recesses such as grooves or the like are formed in the needle. In that case, it is particularly easy to prevent a cut-up part of the pierced lid from hindering the outflow of the gas from the gas cylinder into the puncture chamber. Because so at least one of the channels or wells can be flowed through well.

The puncture chamber is preferably fluidically connected to a nozzle, which is designed to direct the gas flowing out of the gas generator into an outlet channel with venturi effect of a venturi housing. In that case, the venturi effect can be used in a simple manner for filling an inflatable balloon of the airbag system.

The airbag system can furthermore be arranged on a carrying device, which has a flexible casing in which a composite is stowed. The composite comprises a triggering device of the triggering system, a Venturi housing and an inflatable balloon, which is connected to the venturi housing.

In this case, the venturi housing is arranged in the carrying device such that at least one air inlet of the venturi housing bears against an outer wall of the carrying device. On the one hand, good entry of the ambient air into the Venturi housing is ensured through the outer wall of the support device. On the other hand, the sheath ensures that the composite does not obstruct or limit the accessibility to other items in the support.

The flexible sheath can be made detachable by the carrying device, so that, if required, the carrying device can be equipped with the composite. Alternatively, the flexible sheath may be integrated in a non-detachable manner into the carrying device. So makes it possible to ensure a particularly secure fixing, in particular of the inflatable balloon on the support device.

An outer wall of a support device for the airbag system may comprise a mesh region, which allows an inflow of ambient air sucked in via the Venturi effect into a venturi housing through the outer wall. Thus, the ambient air can enter the venturi housing particularly unhindered and thus ensure the filling of the inflatable balloon together with the gas from the at least one gas cylinder.

At the same time, the mesh area provides protection against the ingress of snow and other solids into the venturi housing during the aspiration of the air. Again, this is conducive to a quick and safe inflation of the balloon or airbag. The mesh area can be formed by a good air-permeable fabric or mesh and / or in the manner of a grid.

The airbag system may be arranged on a carrying device, which comprises at least one carrying strap. The strap is hereby designed to be arranged with its person facing the front of the person's chest. In this case, the carrying strap has a passage for the passage of a tension element which serves to actuate a triggering device of the triggering system. The tension element can in this case be connected to a handle in order to facilitate the actuation of the triggering device. By passing the tension element through the passage of the support belt, it is possible to ensure that the release device can be actuated particularly easily by means of the tension element. This is especially true when the tension element is connected to the handle.

Furthermore, it can be ensured that the tension element or the handle for a hand of the person is particularly well accessible.

To the support means may be mounted a composite comprising a venturi housing, an inflatable balloon and the triggering system.

A triggering element of the triggering system preferably has a central axis which is aligned with a central axis of movement of a triggering piston of the triggering system. By such a coaxial arrangement of the triggering element and the release piston can ensure a particularly smooth release of the airbag system.

As further advantageous, it has been shown when a trigger element of the trigger system is coupled to a tension element which is connected to a handle. In this case, a portion of the tension element, which is coupled to the trigger element, aligned with a central axis of the trigger element. Thus, a tensile force can be exerted on the trigger element particularly well by means of the tension element.

Finally, it has proven to be advantageous if a triggering element of the triggering system is inserted in a movable manner in a receiving space of a release piston of the triggering system. In this case, the receiving space can be formed in particular centrally in the release piston. The trigger element is preferably aligned with a tip of a needle of the release piston which is designed to pierce a lid of the gas cylinder. So can be particularly well by means of the trigger element of the trigger piston with the tip move towards the gas bottle and so pierce the lid of the gas bottle.

All features and combinations of features as well as the advantageous embodiments of a respective aspect of the invention also apply as preferred features, feature combinations and embodiments of a further aspect or several further aspects of the invention and vice versa.

The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respectively indicated combination but also in other combinations or in isolation, without the scope of To leave invention. Thus, embodiments are also to be considered and disclosed by the invention as defined in the claims, which are not explicitly shown in the figures or are explained, however, emerge and can be generated by separated combinations of features from the described embodiments.

• die Figur 1 eine Perspektivdarstellung eines tragbaren Airbagsystems für Personen mit auseinandergefaltetem Airbag und in nicht an einer Trageinrichtung befestigtem Zustand ist;
• die Figur 2a eine Perspektivdarstellung des tragbaren Airbagsystems an seiner Trageinrichtung bei nicht auseinandergefaltetem Airbag ist;
• die Figur 2b eine Perspektivdarstellung des tragbaren Airbagsystems an seiner Trageinrichtung mit dem auseinandergefalteten und aufgeblasenen Airbag ist;
• die Figur 3a eine Seitenansicht des Airbagsystems ist, wobei ein den Airbag umfassender Verbund an die Trageinrichtung, hier an einen Rucksack, montiert ist;
• die Figur 3b eine teilweise geschnittene Seitenansicht des Airbagsystems ist, wobei der den Airbag umfassende Verbund an die Trageinrichtung montiert ist;
• die Figur 3c eine teilweise geschnittene Seitenansicht ist, welche die Position einer Ansaugzone eines Venturi-Systems in Bezug auf eine Außenwand des Rucksacks zeigt;
• die Figur 4a eine Schnittansicht einer Auslösereinrichtung für einen Gasgenerator in der Position vor dem Auslösen ist, wobei zusätzlich der Gasgenerator und ein Venturigehäuse des Venturi-Systems gezeigt sind;
• die Figur 4b eine Schnittansicht der Auslösereinrichtung gemäß Figur 4a, aber in ausgelöster Position ist;
• die Figur 4c eine vergrößerte Schnittansicht der in dem Venturigehäuse angeordneten Auslösereinrichtung ist;
• die Figur 4d eine Perspektivansicht des Venturigehäuses mit der Auslöseeinrichtung und dem Gasgenerator ist;
• die Figur 5 eine vergrößerte Schnittansicht einer Nadel der Auslöseeinrichtung zeigt, welche einen Deckel einer Gasflasche des Gasgenerators durchstößt;
• die Figur 6 eine Ansicht einer Auslösegriffeinrichtung des Airbagsystems ist;
• die Figur 7 eine Ansicht eines Tragriemens der Trageinrichtung gemäß den Figuren 2a und 2b ist, wobei der Griff gemäß Figur 6 sich in einer verstauten und verriegelten Position befindet;
• die Figur 8 ein Werkzeug zum Rückstellen der Auslöseeinrichtung zeigt, welches gerade einen Auslösekolben der Auslöseeinrichtung nach oben schiebt;
• die Figur 9 eine Perspektivansicht einer Griffeinrichtung ist, welche mit einem Zugelement gekoppelt werden kann, das zum Betätigen der Auslöseeinrichtung des Airbagsystems ausgebildet ist;
• die Figur 10 eine Draufsicht auf die Griffeinrichtung gemäß Figur 9 ist;
• die Figur 11 eine Schnittansicht entlang einer Linie XI-XI in Figur 10 ist;
• die Figur 12 eine stirnseitige Ansicht eines Griffbereichs der Griffeinrichtung ist;
• die Figur 13 eine Seitenansicht der Griffeinrichtung ist;
• die Figur 14 schematisch die Anordnung der Griffeinrichtung an einem Tragriemen der Trageinrichtung zeigt;
• die Figur 15 schematisch den Tragriemen mit an dem Tragriemen angeordneten, alternativ verwendbaren Führungseinrichtungen zeigt;
• die Figur 16 schematisch die in einer Tasche an dem Tragriemen verstaute Griffeinrichtung zeigt; und
• die Figur 17 das Befestigen des Zugelements an einer von zwei alternativ nutzbaren Befestigungseinrichtungen in dem Griffbereich der Griffeinrichtung zeigt.

Further advantages, features and details of the invention will become apparent from the claims, the following description of preferred embodiments and from the drawings, in which:

• the FIG. 1 is a perspective view of a portable airbag system for people with unfolded airbag and in not attached to a support device state is;
• the FIG. 2a is a perspective view of the portable airbag system on its support device with unexpanded airbag;
• the FIG. 2b is a perspective view of the portable airbag system on its support device with the unfolded and inflated airbag;
• the FIG. 3a is a side view of the airbag system, wherein an airbag comprehensive composite is mounted on the support means, here to a backpack;
• the FIG. 3b is a partially sectioned side view of the airbag system, wherein the composite comprising the airbag is mounted on the support means;
• the Figure 3c Figure 3 is a partially sectioned side view showing the position of a suction zone of a Venturi system with respect to an outer wall of the backpack;
• the FIG. 4a Fig. 12 is a sectional view of a trigger device for a gas generator in the pre-trigger position, showing additionally the gas generator and venturi housing of the venturi system;
• the FIG. 4b a sectional view of the trigger device according to FIG. 4a but is in triggered position;
• the Figure 4c an enlarged sectional view of the arranged in the Venturigehäuse trigger device is;
• the FIG. 4d is a perspective view of Venturigehäuses with the triggering device and the gas generator;
• the FIG. 5 shows an enlarged sectional view of a needle of the trigger, which pierces a lid of a gas cylinder of the gas generator;
• the FIG. 6 is a view of a trigger handle device of the airbag system;
• the FIG. 7 a view of a support belt of the support device according to the FIGS. 2a and 2 B is, with the handle according to FIG. 6 is in a stowed and locked position;
• the FIG. 8 shows a tool for resetting the triggering device, which just pushes a trigger piston of the triggering device upwards;
• the FIG. 9 is a perspective view of a handle device which can be coupled to a tension element, which is designed to actuate the triggering device of the airbag system;
• the FIG. 10 a plan view of the handle device according to FIG. 9 is;
• the FIG. 11 a sectional view taken along a line XI-XI in FIG. 10 is;
• the FIG. 12 is an end view of a handle portion of the handle device;
• the FIG. 13 a side view of the handle device;
• the FIG. 14 schematically shows the arrangement of the handle device on a strap of the support device;
• the FIG. 15 schematically shows the strap with arranged on the strap, alternatively usable guide means;
• the FIG. 16 schematically shows the stowed in a pocket on the strap handle device; and
• the FIG. 17 the fastening of the tension element to one of two alternatively usable fastening devices in the grip region of the grip device.

With reference to the figures, first to the FIG. 1 , A portable airbag system 1 or an airbag device for persons comprises an inflatable bag or airbag or inflatable balloon 3, a gas generator 4, a triggering system 5 of the gas generator 4 (which may be constituted, for example, by at least one cartridge or gas bottle 21 with a pressurized gas can) and a Venturi system 6, which is fluidly connected to the gas generator 4 and the inflatable balloon 3. The airbag system 1 is triggered by train on a handle 7. The handle 7 has a T-shape, wherein two lateral extensions 67 of the handle 7 form the bar of Ts.

With reference to the figures, first to the Figures 1 to 3c , the airbag system 1, as it is in FIG. 1 is defined on a support device 2, here a backpack attached. According to an advantageous aspect of the airbag system 1, a triggering device of the triggering system 5 is connected to the handle 7, which is located on a carrying strap 9 of the carrying device 2. In the present case, the connection takes place via a tension element in the form of a cable 22, which exits from an upper part of the venturi system 6, into which the triggering device of the triggering system 5 is integrated (cf. FIG. 4d ).

FIG. 2a shows a person wearing the support means 2 in the form of the backpack, wherein on the support means 2, the airbag system 1 is attached. The cable 22 extends within the support belt 9 up to the handle 7, of which in FIG. 2 the two lateral extensions 67 can be seen. In the region of the two lateral extensions 67 has a arranged on the strap 9 pocket 68 for the handle 7 (see FIG. 7 ) a closure 50 on.

When the closure 50 is open, the handle 7 is no longer stowed in the pocket 68, but rather the handle 7 stands out from the carrying strap 9 (see FIG FIG. 2b ).

According to one embodiment, the airbag system 1 comprises the inflatable balloon 3, the venturi system 6 and the gas generator 4, which are mounted together and form a detachable unit which can be removed from the carrying device 2 and which is in FIG FIG. 1 is shown.

A composite comprising the triggering device of the triggering system 5, the venturi system 6 and the inflatable balloon 3 can be arranged and stowed within the carrying device 2 in a flexible sheath 80 (cf. FIG. 3a ). The composite with the shell 80 may be arranged in the backpack or similar support means 2 such that the gas generator 4 is arranged substantially upright within the backpack. Here, the gas generator 4 is preferably arranged adjacent to an outer wall 82 of the backpack, which is presently designed as a side wall of the backpack (see FIG. 3a and FIG. 3b ).

With reference to the FIGS. 3a . 3b and 3c the airbag system 1 comprises the triggering device for triggering the gas generator 4 and a Venturi housing 31, which allows the intake of ambient air A (see FIG. 4b ), wherein the airbag system 1 to the support means 2, here a backpack, is mounted. The outer wall 82 of the backpack is provided with a suction portion 59 of a fabric, for example with a net, which allows passage of the ambient air A through the outer wall 82 therethrough (see FIG. 3b ).

In the present case, this intake section 59 is located, for example, on the side of the backpack in such a way that advantageously a closing body 60 of a valve 23 of the Venturi system 6 operates along an axis 38 of the valve 23 or is movable. In this case, the closure body 60 can be moved parallel to the side wall of the backpack, which has the suction section 59 (see FIG FIG. 4a and 4b ). This advantageously allows a quasi linear air flow between the environment of the backpack and an outlet channel or channel 30 with Venturieffekt the venturi housing 31 to have.

With particular reference to the FIGS. 3b and 3c It is good to see how the venturi housing 31 is positioned with respect to the rim or sidewall of the backpack and how openings or air inlets 32 of the venturi housing 31 are pressed against the suction portion 59 of the backpack.

With reference to the FIGS. 4a to 5 the airbag device or the airbag system 1 comprises the triggering device for triggering the gas generator 4, the triggering device comprising a body 11 in which a triggering piston 12 of the triggering device can be displaced, which is provided with a needle 13. The needle 13 is provided with depressions or channels 39 for the outflow of the pressurized gas (see FIG. 5 ) contained in the compressed gas cylinder or gas cylinder 21 (only partially shown). A tip 44 of the needle 13 is a sharpened tip which is intended to pierce a fragile part of the gas cylinder 21, in this case the cover 20 of the gas cylinder 21.

The triggering system 5 comprises the release piston 12, which is acted upon by a spring 14 with pressure, which is prior to use, ie before the triggering of the airbag system 1, under compressed bias, as shown in the FIG. 4a is illustrated. The release piston 12 is kept locked by means of movable locking elements in its upper position, that is to say before triggering. The locking elements in this variant of the airbag system 1 in the form of two balls 17, which are guided in a recess 45 in the release piston 12 and which are received in a cavity or recess 47 of the body 11, which has an inclined surface 19 (see FIG. 4b ).

The preferably metallic body 11 thus provides a receiving space for the two balls 17 in the region of the depressions 47, as long as the release piston 12 is not triggered, ie is locked. The inclined surfaces 19 of the recesses 47 are in this case formed in a lower region of the recesses 47, ie on the - in the direction of movement of the release piston 12 during shutdown in the direction of the gas cylinder 21 to - lower end of the recesses 47. The surfaces 19 are formed inclined to a center of the body 11, in which the release piston 12 is located. The pressing against the release piston 12 spring 14 ensures in the cocked, so not triggered position of the release piston 12 that the balls 17 are pressed against the respective inclined surfaces 19.

The balls 17 are held in the locked position by means of a triggering element 15, which is connected to the cable 22 or tripping cable. Another spring 16 pushes the trigger member 15 down to its locked position. However, the further spring 16 is significantly weaker than the spring 14 for the movement of the release piston 12. If one pulls on the cable 22, the further spring 16 is compressed and the trigger element 15 moves upward until a recess 46 in the release element 15 itself at the height of the balls 17 is located. The balls 17 can thus easily move out of the recess 47 in the body 11, which allows the release piston 12 to shut down.

In the region of the recess 46, the trigger element 15 has inclined surfaces, which are also inclined to the center of the body 11 - and thus also to the center of the trigger element 15 - inclined. In other words, the trigger element 15 tapers in the region of the depression 46, through which the inclined surfaces are provided.

If the balls 17 reach the area of this recess 46 formed on the trigger element 15 or taper, the inclined surface 19 of the body 11 causes the balls 17 to move towards the center of the trigger piston 12. Namely, the inclined formation of the surfaces 19 of the body 11 ensures that the balls 17 are acted on by a force component directed toward the center of the release piston 12.

In the in FIG. 4a shown, not triggered position of the triggering device, however, pushes the further spring 16, the trigger element 15 so far down that the recess 46 is not yet at the level of the balls 17. Rather causes the further spring 16, that a further, but much less inclined surface 18 of the trigger element 15 with the balls 17 in contact (see Figure 4c ). However, the very slight inclination of the surface 18 towards the center of the trigger element 15 causes the balls 17 to roll particularly well along the trigger element 15 to reach the area of the recess 46 when pulling on the cable 22.

The triggering device comprises the - preferably metallic - body 11 with a central chamber 25 which receives the trigger piston 12, wherein the trigger piston 12 itself is provided with a cavity or receiving space 53, in which the trigger element 15 is located. The cooperation of the trigger element 15, the cable 22, the trigger piston 12 and the balls 17 is such that the trigger element 15, which is connected to the cable 22, allows it in the upper position to trigger the shutdown of the release piston 12 by means of the balls 17 and in the lower position to ensure the arrangement of the balls 17 on both sides of the trigger element 15. This advantageously allows the weight, price and bulkiness of the triggering device to be limited. In addition, this embodiment of the trigger element 15 limits the possibilities of an unfavorable arrangement of the balls 17 relative to the trigger element 15, which minimizes the risk of malfunction.

The trigger element 15 is located in the central receiving space 53, which is formed in the trigger piston 12, wherein the trigger element 15 is connected to the cable 22, which itself is connected to the handle 7. This advantageously makes it possible to have a cable 22 that is aligned with the gas cylinder 21, the cable 22 being in a configuration in which the gas cylinder 21 is perpendicular to the backpack (see FIG FIG. 3a and 3b ), in the direction of the strap 9 of the backpack runs.

Like, for example Figure 4c it can be seen, the further spring 16 is clamped between a sleeve part 34 and the trigger element 15. The sleeve part 34 is in this case arranged in an opening in the venturi housing 31 and sealed with respect to edges of the opening by means of a seal 36. Through the sleeve member 34 through the cable 22 is led out into the environment of Venturigehäuses 31.

In the present case, the cable 22 is surrounded in a reaching into the sleeve member 34 in the area of a tube 35 which supports the cable 22. Thus, it is ensured that a portion of the cable 22 which is coupled to the trigger element 15, with a central axis 78 of the trigger element 15 is aligned. The central axis 78 of the cable 22 falls in the present case in the region of the venturi housing 31 with a central axis 78 of the release piston 12 and with a central axis 78 of the body 11 together.

The triggering device comprises the trigger piston 12, which is provided with the needle 13, and the spring 14, to pressurize the trigger piston 12, wherein the spring 14 is compressed prior to triggering, wherein the trigger piston 12 is retained by the trigger element 15, which locks itself over the further spring 16 in a position which prevents the release piston 12 from shutting down once it is cocked. The trigger element 15 is located in an advantageous manner in the receiving space 53 in the release piston 12 in order to limit the bulkiness of the body 11. The release piston 12 is retained by the trigger element 15 by means of two balls 17, which are in a symmetrical manner on both sides of the release piston 12. The two balls 17 are in contact with the body 11 and the trigger element 15 in the region of the two inclined surfaces 18, 19, when the trigger piston 12 is biased by the spring 14, that is, in its untriggered position.

The interaction of only extremely slightly inclined surface 18 on the trigger element 15 with the example, an inclination of about 45 ° having surface 19 on the body 11 ensures good locking of the release piston 12 by means of the two balls 17 or the like - preferably round in cross section - locking elements.

The combination of the two angles or inclinations of the surfaces 18, 19, but also the presence of a plurality of balls 17, allows advantageously to adjust the release force and, for example, to achieve a release force of about 50 Newton for the piercing spring serving as spring 14, which a force of about 500 Newton applies. It only needs a force of about 50 Newton be pulled on the cable 22 to move the release piston 12 with a force of about 500 Newton on the cover 20 of the gas cylinder 21 to.

With reference to the FIGS. 4a . 4b . 4c and 5 the gas bottle 21, which is closed by means of the lid 20, is coupled to the body 11 via a thread and a seal 54. In this case, the seal 54 ensures that, when the cover 20 is pierced, the gas G emerging from the gas cylinder 21 does not escape into the environment.

The triggering system 5 releases the gas G contained in the gas cylinder 21 by means of a piercer in the form of the needle 13 which is connected to the trigger piston 12. The trigger piston 12 remains in its lower position after being triggered, and the gas G flows from the gas cylinder 21 into a puncture chamber 24 via the channels 39 which are formed on the edge or on the outer circumference of the needle 13 and which from one side to the Others of the lid 20 run as soon as the lid 20 is pierced.

The puncture chamber 24 is presently formed by the body 11, and is bounded to the otherwise open side by a neck of the gas bottle 21, in which the lid 20 is disposed with the gas cylinder 21 connected to the body 11. However, the puncture chamber 24 is fluidly isolated from the chamber 25 in the body 11 in which the trigger piston 12 is located.

According to an advantageous aspect of the airbag system 1, the needle 13 is provided with a plurality of channels 39, in such a way that the cut portion of the lid 20 can not hinder the outflow of the gas G from the gas cylinder 21 into the puncture chamber 24. Because the cut part can block at best only a single channel 39 or partially block.

If you look at the FIGS. 4a to 4c Referring to the Venturi system 6 comprises an outlet nozzle or nozzle 27 which is fluidly coupled to the gas generator 4 via the puncture chamber 24 as soon as the lid 20 of the gas bottle 21 presently serving as the gas generator 4 is pierced. An outlet 28 of the venturi system 6 is adapted to be connected to the inflatable balloon 3 to blow ambient air A and the gas G into the balloon 3. In one Intake portion 29 of the Venturi system 6, the intake of air or ambient air A takes place in the Venturi system 6 and in the channel 30 with venturi effect. The gas G of the gas generator 4, which is introduced into the puncture chamber 24, flows at high speed and is discharged via the nozzle 27 in the direction of the outlet 28 (see FIG FIG. 4b ). The flow of gas G at high velocity into the Venturi effect channel 30 formed by the Venturi housing 31 creates a zone of negative pressure in the zone surrounding the nozzle 27 and upstream of that zone. Due to the venturi effect associated with this negative pressure, the ambient air A is sucked in through the openings or air inlets 32 in the intake region 29 and conveyed to the outlet 28.

The valve 23 ensures that the gas G contained in the gas generator 4 can only enter the inflatable balloon 3, and still allows the intake of the ambient air A via the openings or air inlets 32.

The valve 23 is in the present case designed as a check valve, the closure body 60 is pressed by a spring 48 of the valve 23 against a portion 66 of the Venturigehäuses 31, in which the air inlets 32 are for the ambient air A. If the check valve is closed in such a way that no ambient air A can enter the venturi housing 31, a sealing surface 62 of the closure body 60 rests against the region 66 of the venturi housing 31 (cf. FIG. 4a ). When the check valve is open, however, the sealing surface 62 is spaced from the region 66 of the Venturigehäuses 31, and the ambient air A can enter the Venturigehäuse 31 (see FIG. 4b ). The spring 48, which ensures that the sealing surface 62 of the closure body 60 is pressed against the region 66 of the Venturigehäuses 31, is presently arranged on the axis 38 of the valve 23.

The axis 38 of the valve 23 extends parallel to a longitudinal direction 64 of the channel 30 with venturi effect. In the present case, the axle 38 is also connected to the body 11. Furthermore, the axis 38 is perpendicular to the body 11 from a direction of movement of the release piston 12 in the body 11, which extends in the direction of the central axis 78.

The region 66 of the Venturigehäuses 31 is formed in the present case in the manner of a lid, with which the enclosed by the Venturigehäuse 31, enclosed by the ambient air A and the gas G cavity is enclosed. The lid or region 66, in which the air inlets 32 are located, is in the present case by means of screws 70, of which in Figure 4c an example shown connected to the body 11. Furthermore, it is off Figure 4c Particularly clearly seen that an end portion of the nozzle 27 is inserted into a channel which is formed in the body 11. This ensures that the end portion of the nozzle 27 is fluidly connected to the puncture chamber 24.

The Venturi effect makes it possible to inflate the bag or airbag or balloon 3 with a limited volume of compressed or pyrotechnic gas, for example, only about 1/3 of the gas mixture that fills the bag or airbag or balloon 3, the rest of the gas mixture sucked from the outside ambient air A is. The Venturieffekt itself is well known and also the hydrodynamic effect, and he will not be described in detail here.

According to an advantageous aspect of the airbag system 1, the nozzle 27 of the Venturi system 6 also plays the role of a connection between the Venturi system 6 and the trigger system 5. The nozzle 27 is also held on a web 84 or passed through the web 84, which protrudes from a wall of Venturigehäuses 31 into the interior of Venturigehäuses 31 (see Figure 4c ).

According to an advantageous aspect of the airbag system 1, the valve 23 opens and closes along the axis 38, which is parallel to the channel 30 of the Venturi system 6. Such a design allows the suction efficiency to be significantly increased by providing the venturi channel 30 with an airflow that is more laminar than known designs of the airbag venturi system 6 in which the valve opens and closes along an axis which is perpendicular to the channel 30 with venturi effect.

With reference to the FIGS. 4a and 4b the triggering system 5 releases the gas G which is contained in the gas cylinder 21, which is closed by means of the cover 20, by means of the needle 13, which is connected to the release piston 12. The triggering device of the triggering system 5 is then reset by means of a tool 10, which allows the trigger piston 12 to start up again (see FIG FIG. 8 ). When the release piston 12 is only raised again, the balls 17 hold the release piston 12 in the upper position and the tool 10 can be removed. The tool 10 is provided with a pin 41 which is received in a bore 40 in the center of the needle 13 and against a bottom 51 of the bore 40 (see FIG. 5 ) presses. This advantageously allows the needle 13 to be raised without pressing against a sharp part of the needle 13, but also applying pressure to its center, avoiding deformation of the needle 13 during recovery.

The pin 41 is received in a cylindrical base body 72 of the tool 10. The main body 72 has an external thread, which makes it possible to screw the tool 10 into the body 11. In this case, the main body 72 penetrates into the puncture chamber 24. In order to facilitate the screwing of the base body 72 into the puncture chamber 24, the tool 10 in the present case has a handle 42.

With reference to the Figures 5 and 8th the triggering system 5 releases the gas contained in the gas cylinder 21, which is closed by means of the cover 20, by means of a piercer in the form of the needle 13, which is connected to the release piston 12. The triggering device of the triggering system 5 is reset by means of the reset tool 10, in such a way that the needle 13, which is connected to the release piston 12, remains in its upper position once it is tensioned. The reset tool 10 may have a dipstick or scale that allows it to be checked at any time whether the mechanism or the release piston 12 is cocked or not. This makes it possible to advantageously check whether or not an unused new gas cylinder 21 can be attached to the body 11.

Advantageously, the reset tool 10 allows the trigger piston 12 to be raised by pressing against a flat area, such as against the bottom 51 of the bore 40 in the needle 13. This makes it possible not to damage the cutting portion of the needle 13. The fact that the bore 40 is formed centrally in the needle 13, in the present case also prevents the needle 13 bends when resetting the triggering device.

With reference to the FIGS. 2a . 2 B . 6 and 7 a trigger handle device comprises the handle 7 and a handle 8, wherein the handle 8 gives the handle 7 an angle with respect to the support belt 9 and relative to the user and thus in two directions. The handle 8 allows namely, to orient the handle 7 at 45 ° with respect to a vertical axis, ie towards the center of the rib cage and also to keep the handle 7 away from the thorax of the user.

A length L2 of a guided in the grip guide 8 support arm or support tube 43 may be on the order of 10 cm to 25 cm and advantageously allows to define the position of the handle 7 particularly well. For example, the handle 7 may be centrally located in front of the thorax of the user of the airbag system 1, so that the user can quickly access it even in a situation of stress or panic. In particular, the rigid or semi-rigid tube or support tube 43 allows to prevent excessive rocking of the handle 7 and to provide it at a well-defined angle of about 45 ° d. Here, the handle 7 is away from the strap 9 forward, and he is also oriented towards the center of the rib cage. Thus, the handle 7 can be taken crosswise. Also, guided in the handle guide 8 support tube 43 prevents that the handle 7 can rotate.

For a right-handed person, the cable 22 of the triggering system 5, whose triggering device is located on the user's back, passes over his left shoulder, and then runs in a direction toward the floor and toward the center of the chest. Thus, the person may have their right forearm in front of the thorax at an angle of 45 ° (relative to a vertical axis) aligned with the support tube 43 when the person grasps the handle 7.

If the airbag system 1 is not used, the handle 7 can be stowed in a sheath or pocket 68 provided on the carrying strap 9, which reduces the risk of unintentional sticking of the handle 7 to external objects. The sheath or pocket 68 is provided with side holes or openings 49 which allow the ends or extensions 67 of the handle 7 to protrude from these holes or openings 49. This locks the position of the handle 7 and prevents the handle 7 from being pulled or displaced within the sheath or pocket 68. In the embodiment of the airbag system 1 shown in the figures, the pocket 68 has the closure 50 (cf. FIG. 2a and FIG. 7 ). When the closure 50 is open, the handle 7 arranged on the support tube 43 projects out of the pocket 68 and in this case away from the carrying strap 9 toward the front (see FIG FIG. 2b ).

According to one aspect of the airbag system 1, the airbag device or the airbag system 1 comprises the triggering device for triggering the gas generator 4, the triggering device comprising the triggering piston 12 which is provided with the needle 13, and the spring 14 for displacing the triggering piston 12 the spring 14 is compressed prior to release, and the trigger piston 12 is retained by the trigger element 15, which is located within the receiving space 53 in the trigger piston 12. The trigger element 15 is connected to the cable 22, which itself is connected to the handle 7. This advantageously makes it possible to provide a cable 22 whose end portion attached to the trigger element 15 is aligned in the same way as the gas cylinder 21. In this case, the cable 22 may run in the direction of the strap 9 of the backpack, the gas bottle 21 being arranged vertically in the backpack is.

The triggering device comprises the trigger piston 12, which is provided with the needle 13, and the spring 14 for displacing the trigger piston 12, wherein the spring 14 is compressed prior to triggering. The trigger piston 12 is retained by means of the trigger element 15, which locks itself via the further spring 16 in a position which prevents the trigger piston 12 moves down when it is first stretched.

According to one aspect of the airbag system 1, the airbag device or the airbag system 1 comprises the triggering device for triggering the gas generator 4, the triggering device comprising the triggering piston 12, which is provided with the needle 13, and the spring 14, in order to displace the triggering piston 12. Here, the spring 14 is compressed before triggering. The release piston 12 is retained by the trigger element 15, which is located in the receiving space 53 in the release piston 12. This allows advantageously to limit the bulkiness of the body 11, in which the release piston 12 and the trigger element 15 are arranged.

This makes the triggering device easier to manufacture and less expensive than a triggering device, in which the triggering element 15 is arranged parallel to the triggering piston 12 and adjacent to the triggering piston 12. This is due, inter alia, to the fact that in the present embodiment of the triggering device with the triggering element 15 arranged in the triggering piston 12, there is no problem of an exactly maintained center distance.

Also, a same orientation of a movement axis of the release piston 12 and the trigger element 15 is much easier to implement than in the arrangement of the trigger element 15 parallel to the release piston 12. In the present case, namely, the trigger element 15, the central axis 78, which with the central axis 78 of the movement the release piston 12 is aligned. This central axis 78 also corresponds to the central axis of the cable 22 in the region of the attachment of the cable 22 to the trigger element 15th

According to one aspect of the airbag system 1, the triggering device comprises the triggering piston 12 which is provided with the needle 13, and the spring 14 for displacing the triggering piston 12, wherein the spring 14 is compressed prior to triggering. In this case, the triggering piston 12 is preferably retained by the triggering element 15 by means of two balls 17, which are located on both sides of the triggering piston 12 in a symmetrical manner. This advantageously makes it possible to reduce the risks that the release piston 12 and the trigger element 15 are inclined relative to one another. In addition, the provision of two balls 17 as locking elements shares the body 11 acting stresses by two. This makes it possible to control the frictional forces particularly well, which are associated with the triggering of the triggering device.

According to one aspect of the airbag system 1, the triggering device comprises the triggering piston 12, which is provided with the needle 13, and the spring 14 for displacing the triggering piston 12, wherein the spring 14 is compressed prior to triggering. Preferably, the release piston 12 is retained by the trigger element 15 by means of the two balls 17, which are in the region of the two inclined surfaces 18, 19 in contact with the body 11 on the one hand and with the trigger element 15 on the other. The combination of the two angles of the inclined surfaces 18, 19 allows advantageously adjust the release force, which is applied, so that the release piston 12 moves toward the gas cylinder 21 and the needle 13 pierces the lid 20. For example, such a triggering force of about 50 Newton can be achieved for the piercing spring serving as spring 14, which itself applies a force of 500 Newton.

According to one aspect of the airbag system 1, the airbag system 1 or the airbag device is described, which comprises the triggering device for triggering the gas generator 4, wherein the triggering device comprises the body 11 with the first chamber 25, which leads and receives the trigger piston 12, in which Trigger element 15 is received. The airbag system 1 comprises a second chamber, which is referred to as the puncture chamber 24 and in which the needle 13 of the trigger piston 12 pierces the lid 20 of the gas cylinder 21. The gas G, which is released in the piercing of the lid 20, thanks to a seal 26 can not flow from the puncture chamber 24 to the first chamber 25 (see FIG. 5 ). The seal 26 may, as exemplified herein, be formed as an O-ring seal.

As in particular from FIG. 5 it can be seen, the needle 13 is guided in a channel 55 which extends from the puncture chamber 24 to the chamber 25 in the body 11, in which the release piston 12 is received. However, the needle filling the channel 55 13 and in particular arranged on the needle 13 seal 26 in this case ensure that no gas G from the puncture chamber 24 in the Chamber 25 can get. This results in that the gas G, which emerges from the gas cylinder 21 through the lid 20 pierced by the needle 13, pushes only against the comparatively small cross-section of the needle 13.

This advantageously allows the release piston 12 to remain down without allowing it to move upwardly due to the released pressure. This is advantageous to ensure a good puncture of the lid 20, which closes the gas bottle 21.

Out FIG. 5 (and from FIG. 8 Further, it can be seen that even if the needle 13 penetrates into the puncture chamber 24 as much as possible, the seal 26 disposed on the needle 13 is still located within the channel 55 formed in the body 11. Furthermore, it is off FIG. 5 it can be seen that the sharp tip 44 of the needle 13 protrudes into the puncture chamber 24 when the release piston 12 is moved downwards, but does not project from the puncture chamber 24 into the surroundings of the Venturi housing 31. Rather, the tip 44 of the needle 13 is spaced from an end region of the puncture chamber 24, in which preferably the seal 54 abuts the body 11 when the gas bottle 21 is screwed into the puncture chamber 24. Thus, the person using the airbag system 1 can not be injured at the tip 44 of the needle 13 unless the person inserts too far into the puncture chamber 24 when the gas cylinder 21 is unscrewed from the puncture chamber 24. The tip 44 of the needle 13 thus always remains within a reaching to the end portion of the body 11 space.

In FIG. 5 Furthermore, the arrangement of a seal 37 is particularly good to see, which seals the body 11 against those walls of Venturigehäuses 31, which adjoin the body 11.

The gas G from the gas cylinder 21 flows in the pierced lid 20 through the channels formed in the needle 13 39 first in the puncture chamber 24 and from there into the nozzle 27. For this purpose, a corresponding between the puncture chamber 24 and the nozzle 27 in the body 11 Channel formed.

As in particular from Figure 4c it can be seen, the release piston 12 has a base surface 74, from which the needle 13 projects vertically. When the release piston 12 is pressed down by the spring 14, ie moves toward the gas cylinder 21, this base surface 74 comes into abutment with a stop surface 76, which limits the chamber 25 in the body 11 at its end facing the gas cylinder 21. The cross-section of the needle 13 that can be driven by the gas is therefore significantly lower than that of the release piston 12 in the region of the base surface 74. And the gas G does not reach the base surface 74, since it can not enter the chamber 25. Consequently, the force acting on the release piston 12 force of high pressure from the gas cylinder 21 effluent gas G is only very small.

According to one aspect of the airbag system 1, the airbag system 1 or the airbag device is described, which comprises the trigger device for triggering the gas generator 4, wherein the trigger device is located inside the Venturigehäuses 31. Here, the Venturi housing 31 is designed to suck in the ambient air A, while at the same time the gas G, which is located in the gas cylinder 21, flows to the inflatable balloon 3.

According to one aspect of the airbag system 1, the airbag system 1 or the airbag device is described, which comprises the triggering device for triggering the gas generator 4, wherein the triggering device is located in the interior of the Venturigehäuses 31. In this case, the venturi housing 31 is designed to suck in the ambient air A in such a way that leakage in the triggering device nevertheless allows inflation of the inflatable balloon 3. This is because the venturi housing 31 is an airtight housing provided with the valve 23. The valve 23 designed as a check valve allows the gas G to enter the venturi system 6 only, but not to exit the venturi system 6, except to fill the balloon 3 via the venturi channel 30.

The airbag system 1 preferably comprises the triggering system 5 for triggering the gas generator 4, wherein the triggering device of the triggering system 5, the spring 14th and the trigger piston 12, which is provided with the needle 13. Here, the release piston 12 is acted upon by the spring 14 with pressure, wherein the spring 14 is compressed before triggering. In this case, the triggering device preferably retains the triggering piston 12 by means of at least one ball 17, wherein the triggering device can be connected to the handle 7 via the cable 22. In such an airbag system 1, in particular one or more of the following aspects can be realized.

According to one aspect of the airbag system 1, the triggering element 15 is advantageously located in the interior of the triggering piston 12.

According to a further aspect of the airbag system 1, the trigger element 15 is advantageously arranged in the center of the release piston 12 such that, when the cartridge or gas cylinder 21 is pierced, the pressure of the gas released from the gas cylinder 21 only on the needle 13 of the release piston 12 acts. In this case, a passage of gas from the puncture chamber 24, in which the cartridge or gas bottle 21 and the tip 44 of the needle 13 are arranged, is preferably prevented in the chamber 25. In the chamber 25 in the body 11 in this case the release piston 12 and the spring 14 are arranged, which applies the force for piercing the lid 20 of the cartridge or gas cylinder 21.

According to a further aspect of the airbag system 1, the needle 13 of the trigger element 15 has in its end region and preferably in its center the bore 40 which allows the tool 10 for resetting to press against a part of the needle 13 which is not cutting the lid 20 is used, which closes the gas cartridge or cylinder 21. This allows the release piston 12 to be raised again or reset or tensioned without damaging the needle 13.

According to a further aspect of the airbag system 1, the triggering device of the triggering system 5, which is designed to pierce the cover 20 of the gas cylinder 21 by means of the needle 13 or to open a valve which closes the gas cylinder 21, advantageously in the interior of the venturi housing 31 arranged. Here, the venturi housing 31 is preferably provided with the valve 23, in this case the check valve.

According to another aspect of the airbag system 1, the closure body 60 of the valve 23 or check valve, which allows the intake of the ambient air A by means of the Venturi system 6, advantageously arranged on the axis 38, which runs parallel to the channel 30 with venturi effect. In this case, the valve 23 is preferably arranged upstream of a suction zone 57 in the venturi housing 31.

The suction zone 57 is here an area between the valve 23 and the outlet 28 of the Venturigehäuses 31, which is relative to the entry of the ambient air A in the Venturigehäuse 31 upstream of the nozzle 27 is arranged.

According to another aspect of the airbag system 1, the suction zone 57 and the valve 23, which allow the air to be drawn in by means of the venturi system 6, are preferably arranged adjacent to the outer wall 82 of the backpack or the like carrying device 2.

According to another aspect of the airbag system 1, the trigger handle or handle 7, which is connected to the cable 22, connected to the triggering device. In this case, the position of the handle 7 relative to the user is preferably defined by the grip guide 8. The grip guide 8 makes it possible to give the handle 7 an angle of 45 ° with respect to the carrying strap 9. Furthermore, the grip guide 8 makes it possible to keep the grip 7 away from the user's body (cf. FIG. 2b ).

According to another aspect of the airbag system 1, the trigger handle or handle 7, which is connected to the cable 22, also connected to the triggering device. Here, the handle 7 is preferably adapted to be locked against false triggering when stowed in the pocket 68 on the carrying strap 9 of the backpack which is provided with the two lateral holes 49.

As a handle to trigger the in FIG. 1 shown airbag system 1, a handle device 86 can be used, as in FIG. 9 is shown in perspective. The gripping device 86 has two regions, namely a band-shaped guide region 88 and a grip region 90 adjoining the guide region 88. A thickness 92 of the guide region 88 is presently significantly smaller than a width 94 of the guide region 88 (cf. FIG. 10 and FIG. 11 ). The guide portion 88 is thus formed as a flat, band-shaped beam. In contrast, the handle portion 90 has a greater thickness, which makes it possible to grasp the grip device 86 comfortably in this grip region 90 if it is desired to trigger the triggering device of the airbag system 1.

A head piece 96 of the T-shaped handle portion 90 is formed in the manner of a knob, in which the grip portion 90 is wider and higher than in the adjoining the head piece 96 portion of the handle portion 90th

A length of the gripping device 86 measured in a longitudinal direction 98 may be, for example, 20 cm to 30 cm. The longitudinal extension direction 98 of the entire grip device 86 coincides with a longitudinal extension direction of the grip region 90 and the guide region 88. In the present case, a length of the guide region 88 in the longitudinal extension direction 98 is approximately the same as a length of the grip region 90 including the head piece 96. Accordingly, the guide region 88 is comparatively long and can be for example 10 cm to 15 cm and in particular up to 20 cm.

This comparatively long, band-shaped guide region with a substantially rectangular cross-section ensures that the grip device 86 is very stiff in a direction of the width 94. However, the guide portion 86 in the direction of the thickness 92 is very flexible. This results in that the head piece 96 of the handle device 86 of the support belt 9 of the support device 2, which in FIG. 14 is shown schematically, a certain distance 100, when the grip device 86 is arranged on the strap 9 (see FIG. 14 ).

Furthermore, the inherent rigidity of the guide region 88 ensures this spacing. This is dimensioned such that the guide region 88 can follow the course of the support belt 9. The guide area 88 can become So cling to the strap 9 in a range in which the guide portion 88 is inserted into a guide device.

The guide device is at the in FIG. 14 schematically shown carrying strap 9 of the support device 2 as a sheath or bag 102, in which the guide portion 88 is inserted. As an alternative to such a pocket 102, a plurality of loops may also provide for guiding the guide area 88.

The inherent stiffness of the guide portion 88 in a portion 104 exiting the pocket 102 (see FIG FIG. 14 ), along with the rigidity of the handle portion 90, ensures that the head 96 of the handle portion 90 is spaced from the strap 9. In this way, the grip device 86 in the grip region 90 can be grasped particularly easily by the person who wishes to actuate the triggering device of the airbag system 1.

To a tension element such as the cable 22, of which in FIG. 17 a thickened end piece 106 is shown to be attached to the grip device 86, the grip device 86 in the grip region 90 in the present case has two fastening devices 108. These fasteners 108 are spaced apart in the longitudinal direction 98. Thus, alternatively, the fastening means 108 closer to the guide region 88 or the fastening means 108 closer to the headpiece 96 can be used to fasten the end piece 106 of the cable 22 in the grip region 90. This allows a length adjustment of the grip device 86 so that it can be adapted to the needs of the wearer 2 with the airbag system 1 person. Nevertheless, it is ensured by the comparatively long length of the guide region 88 that a sufficiently large section of the guide region 88 is always guided in the pocket 102.

In order to achieve a particularly low-friction sliding of the guide region 88 in the pocket 102, the guide region 88 is made of a plastic material with a particularly low coefficient of friction. In contrast, the handle portion 90 is provided with a haptic pleasant surface, which may be formed for example of a rubber material and thus a high Having friction coefficients. This facilitates handling of the handle assembly 86 by gripping it in the handle portion 90 and guiding the guide portion 88 in the pocket 102 when it is desired to pull on the cable 22 by means of the handle assembly 86.

Out FIG. 12 is particularly well the knob-shaped shape of the head piece 96 can be seen, which may have an extension in the direction of the width 94 of, for example, about 5 cm. In contrast, a height of the head piece 96, ie an extension in the direction of the thickness 92 is smaller. Thus, the extension in the direction of the thickness 92 of the head piece 96, for example, be about 3 cm to about 3.5 cm. All of the aforementioned details for dimensioning the grip device 86 are merely exemplary, and there may be significantly different values in variants of the grip device 86.

Out FIG. 13 It will be appreciated that the head 96 with the handle portion 90 of the handle assembly 86 also gives a T-shape in the direction of thickness 92 or height.

Out FIG. 15 It will be appreciated that the head 96 of the handle assembly 86 need not only be away from the body of the wearer 2 occupant. Rather, by orienting the pocket 102 on the carrying strap 9 of the handle means 86, an inclination towards a position centrally in front of the person's chest can also be imparted. For example, two pockets 102, 110 can be arranged on the carrying strap 9, into which optionally the guide region 88 can be inserted. In the present case, the first pocket 102 has a larger angle with respect to a longitudinal direction 112 of the support belt 9 than the second pocket 110.

The respective longitudinal extension directions of the two pockets 102, 110 thus include different angles with the longitudinal direction 112 of the support belt 9. Such an angle can be, for example, 15 ° +/- 15 °. Preferably, an angle of 10 ° to 25 ° can be provided.

In FIG. 15 the arrangement of the gripping device 86 on the left carrying strap 9 of the carrying device 2 is shown as an example, in which it is in particular to can act a backpack. When the guide portion 88 is inserted into the less-angled pocket 110 with respect to the longitudinal direction 112 of the support belt 9, the head 96 is positioned less far toward the center in front of the person's chest than if the guide portion 88 into the other, a larger angle is inserted with the longitudinal direction 112 enclosing pocket 102 (see FIG. 15 ).

Out FIG. 16 it can be seen that on the carrying strap 9, a further pocket 114 may be arranged, which serves to stow the handle device 86 when it is not to be used. If the grip device 86 is accommodated in this closable pocket 114, the head piece 96 also rests against the carrying strap 9. In addition, the pocket 114 secures the handle assembly 86 against inadvertent deployment of the air bag system 1. This is assisted by two retention straps 116 which extend from an inner side of the pocket 114 to the support strap 9 and which fix the header 96 in place. These two retaining straps 116 serve as securing elements, which ensure that it is not possible to pull on the grip device 86 when the grip device 86 is stowed in the pocket 114.

Based on FIG. 17 It should be explained how the cable 22 can be fixed to one of the fasteners 108 to allow actuation of the triggering device of the airbag system 1. Thus, the cable 22 can be introduced with the thickened end piece 106 ahead in a passage 118 which extends in the direction of longitudinal extension 98 of the handle portion 90. From here, the end piece 106 first passes into a first receptacle 120, which is separated from a second receptacle 122 via a constriction 124. The tail 106 of the cable 22 is then pushed out of the receptacle 120 upwards. Then, the cable 22 - and with this the tail 106 - - moved towards the guide portion 88 that the tail 106 is in the longitudinal direction of the grip device 86 98 at the height of the second receptacle 122. In this case, the cable 22 passes through the constriction 124, but not the tail 106. When the tail 106 is then at the level of the second receptacle 122, can be pulled on the cable 22 in the longitudinal direction of extension 98. This is how the thickened tail arrives 106 by pulling on the cable 22 in the second receptacle 122, wherein the end piece 106 is tilted about an axis extending in the transverse direction or width direction of the handle device 86 axis.

In this second receptacle 122, the end piece 106 is then fixed, so that by pulling on the handle device 86 via the cable 22, the trigger element 15 of the triggering device can be pulled against the force of the weaker spring 16 upwards. This has the effect that the release piston 12 is moved toward the gas cylinder 21 by means of the pretensioned spring 14 and the needle 13 of the release piston 12 pierces the cover 20 of the gas cylinder 21 (see FIG FIG. 4b ). LIST OF REFERENCE NUMBERS 1 airbag system 2 Carrying device (for example backpack) 3 inflatable balloon 4 inflator 5 release system 6 Venturi system 7 Handle 8th handle leadership 9 Carrying strap of the carrying device 10 Tool 11 body 12 release plunger 13 needle 14 feather 15 triggering element 16 feather 17 Bullet 18 inclined surface / surface (for retaining the balls 17) 19 inclined surface / surface (for retaining the balls 17) 20 cover 21 gas bottle 22 electric wire 23 Valve (Venturi System 6) 24 Puncture chamber 25 Chamber (for guiding / receiving the release piston 12) 26 poetry 27 Nozzle for gas outlet 28 Outlet of Venturi system 6 29 suction 30 Channel with venturi effect 31 venturi housing 32 Air intake (opening) 34 Sleeve part (anchoring area for the cable 22) 35 Pipe (for supporting / guiding the cable 22) 36 Seal (between sleeve part 34 and venturi housing 31) 37 Seal (between body 11 and venturi housing 31) 38 Axis (of the valve 23) 39 Channels (at the edge of the needle 13) 40 Bore (in the center of the needle 13) 41 pen 42 Handle of the tool 43 support tube 44 Point (sharpened / sharpened) 45 Recess (for balls 17) 46 Recess / constriction (in the trigger element 15) 47 Depression (cavity) 48 Spring (of the valve 23) 49 lateral opening 50 shutter 51 Bottom (bore 40) 53 accommodation space 54 Seal (between body 11 and gas bottle 21) 55 Channel (for the needle 13) 57 suction 59 Intake section (net) 60 closure body 62 sealing surface 64 Longitudinal extension 66 Area 67 extension 68 bag 70 screw 72 body 74 footprint 76 stop surface 78 central axis 80 shell 82 outer wall 84 web 86 handle means 88 guide region 90 grip area 92 thickness 94 width 96 headpiece 98 Longitudinal extension 100 distance 102 bag 104 section 106 tail 108 fastening device 110 bag 112 Longitudinal extension 114 bag 116 tether 118 execution 120 admission 122 admission 124 bottleneck A ambient air G gas L2 Length (of support tube 43)

Claims (15)

1. Handle device for an airbag system (1) for the protection of a person in case of the descent of an avalanche, which can be coupled to a pull element (22) formed for actuating a trigger device of the airbag system (1), wherein the handle device (86) has a grip area (90) capable of being gripped by the person,
   characterized in that
   the handle device (86) has a band-shaped guide area (88) adjoining to the grip area (90), which has a thickness (92) lower than a width (94) of the guide area (88), wherein a broadside of the guide area (88) is formed for abutting on a carrying strap (9) of a carrying device (2) at least in certain areas, to which the airbag system (1) is fixable.
2. Handle device according to claim 1,
   characterized in that
   the guide area (88) has an inherent stiffness, which ensures spacing the grip area (90) from the carrying strap (9) when a section of the guide area (88) adjoining to the grip area (90) exits a guide device (102, 110), which is provided on the carrying strap (9).
3. Handle device according to claim 1 or 2,
   characterized in that
   a length of the guide area (88) is at least about 3 cm, in particular between about 3 cm and about 20 cm.
4. Handle device according to any one of claims 1 to 3,
   characterized in that
   a friction coefficient of the guide area (88) is lower than a friction coefficient of the grip area (90).
5. Handle device according to any one of claims 1 to 4,
   characterized in that
   the guide area (88) is formed of a plastic, which forms a base body for the grip area (90), wherein a thermoplastic elastomer, in particular a rubber material, covers the base body at least in certain areas in the grip area (90).
6. Handle device according to any one of claims 1 to 5,
   characterized in that
   at least two fixing devices (108) are provided in the grip area (90), by means of which the pull element (22) can be coupled to the handle device (86), wherein the at least two fixing devices (108) are spaced from each other in a longitudinal extension direction (98) of the handle device (86).
7. Handle device according to any one of claims 1 to 6,
   characterized in that
   the handle device (86) has a thickness in the grip area (90) in particular formed T-shaped, which is larger than the thickness of the guide area (88).
8. Carrying device (2) with a handle device (86) according to any one of claims 1 to 7, wherein the handle device (86) is disposed on the carrying device (2), and wherein a section of the guide area (88) adjoining to the grip area (90) exits a guide device (102, 110) provided on the carrying strap (9).
9. Carrying device according to claim 8,
   characterized in that
   the guide device (102, 110) is formed by an envelope element disposed on the carrying strap (9) and/or by a plurality of flaps disposed on the carrying strap (9).
10. Carrying device according to claim 8 or 9,
    characterized in that
    a longitudinal extension direction of the guide device (102, 110) forms an angle, in particular an angle between 1° and 30°, preferably an angle between 10° and 25°, to a longitudinal extension direction (112) of the carrying strap (9).
11. Carrying device according to any one of claims 8 to 10,
    characterized in that
    at least two guide devices (102, 110) are disposed on the carrying strap (9), the longitudinal extension directions of which form an angle to each other.
12. Carrying device according to any one of claims 8 to 11,
    characterized in that
    a closable bag (114) is disposed on the carrying strap (9), which is formed for stowing the handle device (86).
13. Carrying device according to any one of claims 8 to 12,
    characterized in that
    at least one securing element in particular formed as a retaining strap (116) is disposed on the carrying strap (9), by means of which the grip area (90) of the handle device (86) is fixable in its position secured on the carrying strap (9), in particular against a pulling movement.
14. Carrying device according to any one of claims 8 to 13,
    characterized in that
    the airbag system (1) is disposed on the carrying device (2), wherein the handle device (86) is coupled to the pull element (22) formed for actuating the trigger device of the airbag system (1).
15. Airbag system, which has a handle device (86) according to any one of claims 1 to 7, or is disposed on a carrying device (2) according to any one of claims 8 to 14.

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