CN117715803A

CN117715803A - Child restraint device with airbag

Info

Publication number: CN117715803A
Application number: CN202280051903.5A
Authority: CN
Inventors: I·鲍威尔
Original assignee: Cybex GmbH
Current assignee: Cybex GmbH
Priority date: 2021-06-08
Filing date: 2022-06-07
Publication date: 2024-03-15

Abstract

The invention relates to a child restraint device, in particular a child seat (10) and/or a barrier (50), for installation in a vehicle, or a component of such a child restraint device, comprising at least one airbag having at least one inflatable gas bag (71), wherein the gas bag can be transferred from an uninflated state into an inflated state, wherein the gas bag (71) in the uninflated state is at least substantially unfolded, and/or wherein an outer surface of the gas bag (71) in the uninflated state of the gas bag (71) is configured such that at most 25% of the outer surface is suitable for: the respective outer face-vertical line intersects the outer face at a second point of the outer face and/or, in an uninflated state of the at least one gas bag (71), at most 25% of the outer face of the gas bag is directly against another portion of the outer face.

Description

Child restraint device with airbag

Technical Field

The invention relates to a child restraint device, in particular a child seat and/or a barrier for installation in a vehicle, comprising at least one airbag with at least one inflatable gas bag.

Background

DE4418028A1 describes a child seat with a blocking body which in turn comprises an airbag. An airbag is arranged in the upper section of the blocking body in order to protect the head of a child sitting in the child seat (in the event of a crash).

DE202017105118U1 also discloses a child seat with a blocking body. According to this prior art, the airbag can be arranged at different points, for example in the upper or lower section of the blocking body or in the center of the blocking body, so that the upper and lower section of the blocking body diverge from one another.

DE102017126235A1 describes a child seat with a blocking body having an airbag which is arranged either in the lower section or in the rear section (pointing toward the child sitting in the child seat).

DE19722095C1 describes a child seat with a carrying bow in which an airbag is arranged. In the event of a triggering, the airbag bag deploys, which should be done in as controlled a manner as possible.

DE4418028B4 shows different possibilities for positioning the airbag at the child seat. The gas generator is correspondingly arranged directly beside the gas bag.

US5375908A shows a child seat with an airbag, wherein a gas generator is arranged in the sitting portion of the child seat.

DE19534126C1 describes a gas cartridge integrated into the sitting portion of a child seat, which gas cartridge feeds an airbag via a pressure line.

EP1452386B1 describes an airbag in a chest pad arranged in a hollow housing.

US6736455B1 describes an airbag which is arranged in an initial state below a cushion-shaped section.

So far, different airbag solutions have not been accepted in the market. This may be because, in part, only the requirements which are difficult to meet, such as the safe and reliable use of the airbag (in particular, the avoidance or at least reduction of the risk which may only be caused by the airbag), have not been satisfactorily solved so far for child restraint devices or child seats with acceptable structural outlay, in particular in terms of manufacturing costs.

Disclosure of Invention

The object of the present invention is therefore to provide a child restraint, in particular a child seat and/or a blocking body, for installation in a vehicle, in particular in a motor vehicle, and/or components of such a child restraint, wherein a relatively high level of safety should be ensured for the child held by the child restraint, preferably in a manner that is as simple as possible in terms of construction. In particular, the risk that may be caused only by the airbag should be reduced or avoided as much as possible.

This object is achieved in particular by the features of claim 1.

In the scope of the aspects of the invention explained below, the term "child" shall in particular include persons aged 0 to 12 years, such as infants (aged 0 to 12 months) and/or children (aged 1 to 3 years).

Child seats should be understood in particular (unless otherwise indicated below) as such seats: the seat can be placed on a vehicle seat, in particular a motor vehicle seat, preferably a car seat, and can be removed again from the vehicle seat. The child seat need not be (but may be) configured such that the child sits in the child seat. A seat (such as an infant seat) that also (or if possible only) enables a positioning in which a child lies is to be understood as a child seat. In particular, infant shells, seats for children and/or booster seats are to be understood as examples for child seats. The child seat may be of a special type (e.g. infant shell, in particular with carrying bows) or may be a seat constructed for different age groups and/or convertible so that it may be used for different age groups (or be convertible accordingly).

The child seat may be configured such that the child looks forward in use, or configured such that the child looks backward, or configured such that the child looks sideways. Child seats are also conceivable in which different directions of view are possible (in particular rotatable child seats).

The child seat preferably has a body that includes at least one seating section. The main body may also have a (possibly adjustable) backrest and/or a (possibly adjustable) side flap and/or a (possibly adjustable) armrest and/or a (possibly adjustable) headrest and/or a (possibly adjustable) side impact protection and/or at least one (first) securing means (e.g. a first part of the blocking body securing means configured for co-acting with a second part of the blocking body securing means for arranging or positioning the blocking body at the main body) for securing the blocking body at the main body of the child seat.

For example, the child seat may include a blocking body (or the blocking body).

Furthermore, the child seat may comprise support feet and/or top ties and/or at least one seat belt guide for guiding a vehicle seat belt and/or at least one second fastening means (e.g. Isofix anchors or fastening means or hooks for a latching system) for releasably fastening the child seat at the (motor) vehicle seat and/or at least one third fastening means (e.g. rods and/or anchors and/or hooks) for (releasably) fastening the child seat at the base.

The base of or for the child seat may be configured for receiving the child seat, wherein the base may have at least one fourth securing means (e.g. at least one lever or at least one anchor and/or at least one hook) for (releasably) seating the child seat (e.g. in co-action with the third securing means) and/or at least one seat belt guide for guiding the (vehicle) seat belt and/or at least one fifth securing means (e.g. Isofix anchor or latch system) for (releasably) seating or securing the base at the (vehicle) seat.

A blocking body (crash protection) is to be understood as a restraining device in particular in order to hold a child instead of or in addition to a safety belt system. In particular, unlike a safety belt system, such a blocking body should preferably have (at least substantially) a firm (dimensionally stable) section, which preferably at least constrains the abdomen area (abdomen) of the child and/or which is preferably configured for supporting (if possible fixing) at the left and right side of the child seat body. The fastening section may consist (on at least 50 weight percent, preferably on at least 80 weight percent) of an at least substantially non-porous and/or foam-free material and/or of a polymer, preferably a polyamide and/or a polyolefin, such as PP or PE. The fastening section may constitute at least 20 weight percent, preferably at least 50 weight percent, of the stopper and/or have a weight of at least 100g or at least 250g and/or at most 2.0kg or at most 1.0 kg.

The blocking body can furthermore have at least one soft section or at least one (crash) damping device and/or at least one sixth fastening device for fastening the blocking body to the body of the child seat and/or at least one seat belt guide (preferably at the front end, in particular configured as a preferably elongated cavity, and/or configured as at least one tab and/or eyelet extending horizontally and/or configured for passing through a seat belt). The sixth fastening means may be a second part of the blocking body-connecting means configured for co-acting with the first fastening means (as a first part of the blocking body-connecting means) to fasten the blocking body at the main body (if possible to latch there). The soft segments may consist (on at least 50 weight percent, preferably on at least 80 weight percent) of porous and/or foamed material and/or of polymers, preferably EPS and/or EPP. The soft segment may constitute at least 5 weight percent, preferably at least 10 weight percent, of the flight and/or have a weight of at least 50g or at least 100g and/or at most 800g or at most 500 g.

An airbag is preferably understood to be a system with at least one (inflatable) gas bag, a gas generator, a control device (controller) and sensors.

The gas bag is preferably formed at least in sections from a plastic, such as polyamide and/or polyolefin.

The sensor preferably comprises at least one crash sensor configured for measuring (and providing) at least one crash parameter, such as (current) acceleration, and the crash sensor is connected (e.g. by cable or wirelessly) with the control device.

The control means preferably comprises an energy supply (e.g. a battery). It is further preferred that control software or a corresponding algorithm is stored in the control device to control the activation and/or triggering (inflation) of the airbag. In this connection, when the airbag is in a state in which it is generally capable of being transferred into a (inflated) functional state, the airbag should be regarded as being active, so that the actual transfer into the functional state is also dependent at least substantially only on at least one parameter of the sensor. In contrast, if the airbag is in a state in which such a transition into a functional state cannot be achieved (whichever parameter is measured or provided by the sensor), the airbag should be regarded as deactivated.

For example, if the result of the control software (algorithm) is such that at least one predetermined condition is met (e.g. a predetermined speed is exceeded), the control means triggers the gas generator such that: the (inflatable) gas bag is inflated (or in other words such that the airbag is transferred into its functional state).

The functional state of the airbag relates in particular to a state in which the airbag is filled (completely or at least partially, for example up to at least 50%, relative to the maximum volume possible) with gas and is therefore configured for absorbing and/or attenuating forces which occur, for example, when a child hits the airbag (to a certain extent). In contrast, the rest state should preferably be a state in which the airbag is (at least substantially) empty (or empty), in particular such that the inner faces of the gas bag can be brought into contact with one another, so that the corresponding forces (caused by the colliding person) are not absorbed and/or damped or are absorbed and/or damped only to a (significantly) small extent.

The at least one crash sensor may preferably be arranged at or adjacent to the second, third, fourth or fifth fastening means or at least near (adjacent) at least one belt guide for a vehicle belt, preferably such that the sensor (in the mounted state of the child restraint) is arranged as close as possible to the vehicle chassis.

Hereinafter, various aspects of the present invention are explained, which are referred to as first, second, third, etc. These aspects include sub-aspects of the respective individual interpretations again. Each of the aspects should be regarded as an independent solution of the invention. However, it is particularly preferred that a plurality (if possible all) of the aspects be combined or co-existing within a single child restraint. In a particularly advantageous embodiment of the invention, all (respectively substantially independent) aspects of the invention are achieved.

A. Deployed airbag

According to a first independent aspect of the invention, in order to solve the above-mentioned task, a child restraint device (in particular a child seat and/or a barrier) for being placed in a (motor) vehicle, or a component part of such a child restraint device, is proposed, which comprises at least one airbag with at least one inflatable gas bag (and at least one gas generator), wherein the gas bag is transferable from an uninflated state into an inflated state; wherein the gas bag in an uninflated state is at least substantially (preferably fully) deployed (or remains deployed). Alternatively or additionally, the outer face of the gas bag in its uninflated state is configured such that at most 50%, preferably at most 25%, still further preferably at most 10% of the outer face is suitable for the following: a respective outer face-perpendicular line intersects the outer face at a second point of the outer face. Alternatively or additionally, in the uninflated state of the at least one gas bag, at most 50% of the outer face of the gas bag, preferably at most 25% of the outer face of the gas bag, still further preferably at most 10% of the outer face of the gas bag is (directly) abutted at a further portion of the outer face. In particular, (direct) abutment should be understood as contact. However, if possible, faces or face sections having a distance of at most 0.5cm, preferably at most 1mm, should also be considered as lying against one another. In particular, faces that lie against one another are not to be understood as being aligned with one another (or arranged side by side along the respective face). Conversely, the respectively considered faces or face sections should be directed in particular towards each other.

An important idea of the invention finally consists in at least essentially abandoning the folding of the airbag in the uninflated state (or in the state in which the gas bag is retracted). This differs from known practices in which the airbag gas bag is folded multiple times and very significantly. In this case, relatively uncontrolled unfolding is either tolerated or attempts are made to achieve as controlled unfolding as possible in the case of relatively complex folding geometries or folding techniques. Therefore, either the safety must be reduced or the design effort must be greatly increased. However, it was (quite surprisingly) realized according to the invention that: even if an extremely large volume in the inflated state is (intentionally) dispensed with, a safety advantage is achieved in the child seat or the stopper (or in general the child restraint) or even only so, which in turn allows no (significant) folding to occur in the unaerated state in a synergistic manner. The solution according to the invention thus differs in particular from the known airbag solutions, in that a (as high as possible) gas volume in the inflated state should be achieved in a readily visible manner. In contrast, according to the invention, the respective section of the child restraint (e.g. of the barrier) should be displaced at least to some extent in the direction of the child, in order to reduce the path of movement of the child (until the child hits the respective area of the child restraint) and to adapt the child to the dynamics of the accident as quickly as possible.

Preferably (in the uninflated state) for at most 50% of the outer face, preferably at most 25% of the outer face, still further preferably at most 10% of the outer face, the following applies: the starting point of the outer face considered in each case rests against a further point of the outer face which is not directly adjacent to the starting point.

If the entire outer face of the gas bag (in the uninflated state) is considered as a continuum of points, the following preferably applies: those (first in corresponding consideration) points which lie against further points of the outer face which are not directly adjacent to (first) points (i.e. are firmly connected adjacent to infinity in the material composite) represent at most 50% of the (total) outer face, preferably at most 25% of the outer face, still more preferably at most 10% of the outer face.

According to an embodiment, for at most 50%, further preferably at most 25%, still further preferably at most 10% of the outer face of the gas bag in the uninflated state, the following applies: for the starting point of the outer face, there is a further point of the outer face which can be reached by a shortest path along the surface of the gas bag of 1cm or more and at the same time by a shortest straight-line (which does not necessarily follow the surface) path of 0.5cm or less.

B. Channel

According to a second independent aspect of the invention, which may preferably be combined with the first independent aspect described above, in order to solve the above-mentioned task, a child restraint device, in particular a child seat and/or a barrier, or a component of such a child restraint device, for installation in a (motor) vehicle is proposed, comprising at least one airbag with at least one gas bag (and at least one gas generator) that is inflatable, wherein the gas bag is transferable from an uninflated state into an inflated state, wherein the at least one gas bag is provided with at least one steering device (as a component of the child restraint device, preferably as a component of the barrier) for steering a gas flow when transferring from the uninflated state into the inflated state. Preferably, the gas bag itself (e.g. inside it) has such a turning means.

An important idea of the second aspect is that the flowing gas cannot flow arbitrarily (in all directions or outwards) when inflating the gas bag, but is diverted at least partly in sections by the diverting means towards a specific direction. A turning device is understood to mean, in particular, a device which presents an obstacle to the gas flow, which must be bypassed by the gas, in order to influence its direction accordingly. The wrapping of the gas bag or the gas bag itself (or the inner face of the outer wall of the gas bag) is in this sense especially not a diverting means (because it does not divert the gas flow, but only limits it outwards). Thus, preferably, the steering means is a structure which is attached to the outer wall structure defining the gas bag (however, it is entirely possible to connect with this outer wall, if possible also integrally). Preferably, the steering device comprises at least one structure, for example a dividing wall, which can flow around at two sides pointing away from each other. The steering means are preferably not formed by folding.

Preferably, the steering means comprise at least one local fixation of at least one section of the inner wall (or inner face) of the gas bag (against which the gas rests in the inflated state). Such (partial) fixation is in particular not an edge fixation, which should in general (only) hold the gas bag (but not contribute to the diversion of the gas flow).

Preferably, the at least one gas bag has a contact wall section which is externally accessible (e.g. by a child in the event of an accident) and a support wall section at which the gas bag is supported on a support means of the child restraint. Particularly preferably, the steering device comprises a (partial) approach (preferably a fixation) of the contact wall section and the support wall section relative to each other.

A (partial) approach is to be understood in particular as meaning that the contact wall section and the support wall section have a distance to one another in a particular approach section (in the inflated state) which is at most 0.5 times, more preferably at most 0.25 times, the distance of the section adjoining the respective approach section in question and/or a distance to one another of preferably 10cm or less, preferably 5cm or less, still more preferably 2cm or less. The contact wall section and the support wall section may also be in contact with each other, if possible, in the region of the (partial) approach, or even be (firmly) connected to each other.

In an embodiment, the turning device comprises at least one seam and/or rivet and/or adhesive and/or weld (preferably two wall sections or inner wall sections of the gas bag which are arranged side by side and/or opposite one another, in particular the contact wall section and the support wall section). Thus, the steering device can be realized in a simple manner. In principle, the connection possibilities mentioned here can be constructed in the same way as the connection means in order to produce the gas bag (however, such connection should preferably not correspond).

In general (even without the provision of a turning device) it is possible to manufacture the gas bag, for example, by sewing the edges of two (or more) layers of material to each other. However, such a seam should preferably not be (compulsorily) understood as a steering device in the sense of the second aspect. However, the steering means in the sense of the second aspect may be an additional seam (or other connection) which is not (substantially) necessary for constructing the gas bag of the airbag.

At least in the inflated state (of the gas bag) at least one channel (if possible a plurality of channels) is formed by the steering device. Alternatively or additionally, at least in the inflated state, a dividing wall or a plurality of dividing walls can be formed by the deflection device. By means of the channels thus formed or the dividing walls thus formed, an effective (directional) flow can be achieved in a simple manner. In particular, a channel is understood to mean a structure which extends at least in sections in an axial preferred direction and is closed at least in sections (relative to the radial sections) and/or has at least one channel input and at least one channel output. It is particularly preferred to construct a plurality of channels (e.g. comprising at least two or at least four channels) and/or a plurality of dividing walls (e.g. comprising at least two and/or at least four). The plurality of channels may be oriented (at least substantially) parallel to each other or extend in different directions (e.g. radially or away from each other and/or fanned and/or star-shaped). Likewise, the plurality of dividing walls may extend in parallel or in different directions (e.g. radially or away from each other and/or fanned and/or star-shaped).

In embodiments, the at least one gas bag may have a gas inlet which is connected or connectable with a gas generator arranged outside the gas bag, or at least one gas outlet of the gas generator or of a gas generator belonging to an airbag may be located inside the gas bag. Preferably, the gas bag comprises a proximal region formed by the surroundings of the gas inlet or gas outlet (of the gas generator) and at least one distal region remote from the gas inlet or gas outlet (of the gas generator), wherein the at least one turning device turns the gas flow from the proximal region in the direction of the distal region (and/or in the radial direction).

Typically (even without the turning means) the gas bag may have contact and support surfaces (and if possible lateral sides/sides or surfaces for connection). The gas generator may be connected to the gas bag (directly or indirectly through a gas connection, such as a channel or tube) to the support surface or to the side(s). The contact surface is in particular such that the surface points outwards or that a child is in contact with (or at least can contact) the surface. A support surface is to be understood in particular as meaning a surface which cannot be brought into contact with a child, i.e. faces the support device (the airbag or at least its gas bag is then finally arranged on the support device). In particular, the gas bag comprises a proximal section (at or near the gas outlet of the generator and/or at or near the gas inlet of the gas bag) and a distal section (further away from the gas outlet or gas inlet). The steering device can then be configured such that a gas flow in the proximal-distal direction (i.e. from the proximal section towards the distal section) and/or a gas flow in a direction perpendicular to the proximal-distal direction is prevented or at least partially prevented by the steering device (e.g. by the wall sections, in particular locally, being fixed to each other).

The gas outlet of the gas generator and/or the gas inlet of the gas bag may be arranged at or near the edge (or edge) of the support surface and/or at or near the side wall. In particular, in this case, the steering device may preferably be designed as one or more chains of linear and/or (locally) fixed portions, which extend from the proximal section in the direction of the distal section, for example as straight parallel line(s) or curved (arcuate) parallel line(s) or as divergent lines.

Alternatively, the gas outlet of the gas generator and/or the gas inlet of the gas bag may be arranged at or near the centre of the support surface. In this case, the steering device may preferably have one or more wires or chains of (local) fixtures extending from the proximal section in the direction of the distal section, e.g. as (a) set of) straight parallel wires or as (a) set of) curved (arched) parallel wires or as divergent wires.

At least one channel (preferably a plurality of channels) may be configured between such lines or chains and/or between at least one line (or chain) and an adjacent edge of the gas bag, which channels divert the gas flow.

Preferably, the gas bag is supported on a support device (in particular the above-described support device), wherein the steering device comprises at least one structuring of the support device (preferably, in particular, a channel-like or groove-like depression), wherein the structuring is preferably at least partially associated with a corresponding structuring of the gas bag, preferably such that at least one (preferably elongate) bulge of the support device (in particular a bridge) overlaps at least partially with at least one fastening or at least approaching portion (overlapping in top view) of two inner wall sections of the gas bag. However, such a (possibly provided) projection (bridge) of the support device does not necessarily (partially) overlap at least one fastening or approach of the two inner wall sections. The at least one bridge of the support device (in particular if it overlaps with at least one fixing or approach of the two inner wall sections) can in an advantageous manner contribute to: the (especially diverted) gas flow is also achieved or achievable when a body part of the child, especially the chest and/or abdomen of the child, is pressed against the corresponding section of the gas bag, especially if a child-facing section, i.e. the rear section of the baffle, is involved.

Particularly preferably, the steering device is arranged at least (or only) on the rear side of the blocking body (said blocking body), in particular (in the use state of the blocking body), in a manner extending or oriented from below upwards. In particular, the channels and/or the dividing walls according to embodiments extend in such a direction (and/or, if possible, are arranged only in this region). Thus, it can be achieved in a particularly efficient manner: the gas can be effectively guided (even in the event of a crash in the region of the child's chest or abdomen against which it is held) into other regions of the gas bag (and the gas flow is not, or at least not, pinched off prematurely by the child's body). Thereby improving safety.

In a more general sense, a second (independent) aspect of the invention relates to a child restraint device (e.g. a child seat and/or a barrier) having an airbag, wherein there is a structure for improving (during inflation) the gas flow within the gas pocket of the airbag. In particular, the gas bag may comprise at least one device which improves (during inflation) the gas flow within the gas bag of the airbag, for example by means of a corresponding deflector (or guide).

The gas bag may be configured at least in sections to be at least substantially flat (in particular as further defined below). In this case, the deflection device is preferably configured such that a deflection of the gas flow takes place in the (respective) flat section. Particularly preferably, the steering device is arranged in this region.

In combination with such a turning device, a safe and rapid inflation of the gas bag can be ensured in a relatively simple manner in the flat configuration of the gas bag. In particular, even in such a flat design, a (sufficient) gas flow can be achieved when the flat section is already loaded with external pressure (for example by a child pressing against the flat section in the event of a crash).

The steering device may enable (or at least facilitate) the construction of at least one flat section, for example by the approach of the wall sections or the mutual fixation as explained above. This allows an effective turning of the gas bag and also a (possibly desired) flat configuration to be achieved at the same time in a simple manner.

The safety inflation of the gas bag can be achieved in an efficient and simple manner by the steering device according to the invention, and in particular the risk of some areas of the gas bag being completely (or only incompletely) inflated is also reduced (or completely avoided) because they are pinched off by the body of the child accelerating forward (in case of a collision). Overall, the safety is thereby improved by simple measures, in particular also in the case of relatively flat gas bags (in the inflated state).

C. Gas generator location

According to a third independent aspect of the invention, the above-mentioned task is preferably solved by a child restraint device for placement in a vehicle, in particular a child seat and/or a barrier, preferably a child seat with a barrier, or a component of such a child restraint device, preferably a child restraint device according to the first and/or second aspect or a component of such a child restraint device, comprising at least one airbag with at least one gas bag (and at least one gas generator) that is inflatable, wherein the gas bag is transferable from an uninflated state into an inflated state, wherein the gas generator is arranged inside the gas bag or (alternatively) at the lower side and/or the front side of the gas bag, and/or at least one gas inlet opening into the gas bag is arranged in the lower and/or front region of the gas bag.

With respect to positioning relative to the gas bag, the front (or front region) should describe a section pointing away from (or away from) the child; the rear (or rear region) should describe the section facing the child (or against which the child's abdomen/chest rests); the lower part (or lower region) shall describe the section facing the child's leg (or against which the child's leg rests); and the upper portion (or upper region) should describe a section that points upward (that would be in contact with the child's head if the child's head were to bend or press forward or accelerate). Instead of the front (or front region), an outer (or outer region) may also be mentioned. Instead of the rear (or rear region), an interior (or interior region) may also be mentioned. The respective region preferably ends over half the stroke in the downward-upward direction (or vice versa) or over half the stroke in the backward-forward direction (or vice versa) (preferably in the case of 30% of the stroke, further preferably in the case of 20% of the stroke).

According to a third aspect of the invention, the gas generator is preferably arranged inside (and thus in particular surrounded by) a gas bag. Alternatively, the gas generator should be arranged at the lower side and/or the front side of the gas bag (but not inside the gas bag). Alternatively or additionally, at least one gas outlet opening into the gas bag may be arranged in the lower and/or front region of the gas bag. In this arrangement of the gas generator or gas outlet, a safe use of the airbag is achieved in a simple manner. In the prior art, it is sometimes disadvantageous that the gas generator is either arranged in a critical area (for example on the upper side of a baffle, on which the child's head is possible if at all) or has to be supplied, which is costly and may be prone to damage and time delays.

According to an embodiment, the gas generator is (in particular, nor in part) arranged at the upper side of the gas bag and/or is (in particular, nor in part) arranged at the back side of the gas bag. Alternatively or additionally, the gas inlet opening into the gas bag (which gas inlet opening is not (likewise not partly) arranged in the upper region of the gas bag and/or is not (likewise not partly) arranged in the lower region of the gas bag. Thereby the security can be further improved.

According to a modified aspect (which may also be associated, if appropriate, with the features of the first and/or second and/or fourth and/or fifth and/or sixth and/or seventh aspect, but also with the features of the third aspect, if not mandatory), the gas generator (in the use state of the gear) is arranged to extend horizontally and/or transversely to the direction of travel. A corresponding extension means that the gas generator initially has a preferred direction (e.g. a longitudinal direction, as in cigar-shaped designs) due to its geometry. In general, the extension is understood to be the direction of the "length" of the gas generator, wherein this length is in turn understood to be the distance between such pairs of points together with the maximum possible distance between all pairs of points of the gas generator. In general, alternatively a vertical orientation of the gas generator is also possible (e.g. when the baffle is dimensioned to allow this).

By means of the selected positioning, in particular, a synergistic interaction with an airbag (bumped) arranged (around) the blocking body can be achieved. Firstly, the airbag can be inflated in the thigh and pelvis regions (whereby especially the clamping of the child results in the prevention of sagging or slipping away), and then the airbag can be inflated on the upper side of the blocking body (and thereby catch the child's head in a safe manner). The turning device according to the second aspect, in particular the at least one channel, may here also advantageously act to turn the gas flow in the correct (or desired) direction and/or to reduce turbulence (whereby an as fast as possible aeration may be achieved). The steering device can then preferably have at least one channel extending from below upwards, in particular in the rear region of the blocking body. Finally, the following fourth aspect may also even further improve the solution.

D. Overvoltage protection

According to a fourth independent aspect of the invention, the above-mentioned object is achieved in particular by a child restraint device (preferably a child seat and/or a barrier) for installation in a vehicle, or a component of such a child restraint device, preferably a child restraint device according to the first and/or second and/or third aspects or a component of such a child restraint device, comprising at least one airbag having at least one gas bag (and at least one gas generator) that is inflatable, wherein the gas bag is transferable from an uninflated state into an inflated state, wherein the gas bag is provided with at least one pressure limiting device (in particular as a component of such a gas bag) such that, when a predetermined pressure is at least partially reached or exceeded, a pressure reduction is performed by letting out gas from the gas bag.

It has been recognised in relation to the fourth aspect that inflation of the gas bag (if an uncontrolled inflation is possible) can sometimes also be detrimental to the child (i.e. especially if the child has already occupied the portion of space provided for the fully inflated gas bag). To some extent, the airbag may avoid, but in addition harmful pressures and/or forces and/or accelerations may act on the child. One possible scenario considered by the inventors is a head impact on the airbag when the airbag has not yet fully inflated (e.g., in the case of a seat forward orientation and a frontal or drive-in crash). The head can then not only brake, but can even accelerate in the rearward direction, which will generally lead to a particularly critical acceleration. The term "acceleration" shall also be taken to include deceleration in the physical sense, i.e. negative acceleration. At least in part, this may be prevented by detecting a collision and/or rapid ignition or rapid inflation of the gas bag relatively early. The "out of position" recognition may also be helpful if, for example, a child has been resting on the stop with his head before the accident. However, if the airbag is also directed toward the pelvic region and the airbag is inflated, so that the abdomen of the child (as may be caused by an accident) already rests very tightly against the stop and is additionally accelerated in this direction (due to inertia), another important scenario can occur. The gas bag is then inflated with high pressure in this area, which may injure the sensitive abdomen of the child. In particular for this second case, the solutions of the prior art are inadequate.

According to the present invention, therefore, according to a fourth aspect, an overpressure protection (or pressure limiting device) is proposed, which is preferably located between the gas generator and the sensitive area (abdomen and/or head) of the child and allows gas to escape from the gas bag into the surrounding environment when a predefined pressure is exceeded. Preferably, the pressure limiting means is configured such that the depressurization, in the event of a trigger, occurs at least (or only) in the lower and/or rear region of the gas bag and/or at the (lateral) edge of the gas bag (i.e. for example at the left and/or right edge of the gas bag). Particularly preferably, the pressure limiting device is configured such that its pressure limiting device is arranged in a region in which no deflection device or at least no channel (of the deflection device) is formed.

In an embodiment, the pressure limiting device may be arranged near a gas outlet opening into the gas bag (said gas outlet) and/or at the same (vertical) level as the gas outlet (in the use state of the child restraint device).

The pressure limiting means (pressure reduction) may comprise at least one set breaking point and/or set tearing point, preferably a tear seam and/or at least one valve.

The predetermined pressure may be at least 1 bar, preferably at least 3 bar, and/or at most 50 bar, preferably at most 25 bar.

E. Soft product

According to a fifth independent aspect of the invention, in order to solve the above-mentioned task, in particular a child restraint device, preferably a barrier or a child seat with such a barrier for installation in a (motor) vehicle, or a component of such a child restraint device, preferably a child restraint device according to the first and/or second and/or third and/or fourth aspects or a component of such a child restraint device, is proposed, which comprises at least one airbag with at least one gas bag (and at least one gas generator) that is inflatable and at least one first wrapper, in particular an inner wrapper, surrounding the gas bag, which is fixedly connected to the barrier body and/or wraps the gas bag such that the gas bag is inaccessible.

According to a fifth aspect of the invention, the (entire) barrier or a major part thereof, in particular in any case comprising a gas bag and a gas generator, may be surrounded by a (preferably cleanable) inner wrapper which is fixed at the barrier in such a way that the inner wrapper cannot be opened or removed (non-destructively) by a user.

According to an embodiment, an outer wrapper is arranged around the inner wrapper, which outer wrapper is possibly elastically configured and/or can be removed from the barrier-body by triggering of the airbag and/or is preferably detachably connected with the barrier-body (directly or indirectly via the inner wrapper).

The inner wrapper is preferably (at least partly) elastic. Alternatively or additionally, the inner wrapper may have at least one defined breaking point and/or at least one defined tearing point, such that the inner wrapper breaks apart or tears open upon triggering of the airbag.

According to an embodiment, the inner wrapper may (at least in sections, if possible completely) cover, preferably envelope, at least one upper side, back side and underside of the baffle body. The backside is understood to be the side facing the child.

The internal volume of the inner wrapper may be less than the internal volume of the gas bag in the triggered state of the airbag (preferably at most 0.5 times the internal volume of the gas bag in the triggered state of the airbag) when the airbag is not triggered.

The inner wrapper may be composed of a flexible material, particularly a textile (e.g. fabric). If possible, the inner wrap can (relatively) lie closely against the rib (for example, spaced apart from the rib or rib-body by an extension of at most 3cm or at most 1cm in each spatial direction). The inner wrapper may have, as a tear site, for example, a tear seam or other structurally weakened area that tears open and allows the gas bag to inflate when a predefined load is exceeded. The tear-off point can be located in particular on the upper side of the blocking body or on an upper edge.

According to embodiments, the inner wrapper is surrounded by an (further) outer wrapper, which may be removable and/or washable. The outer wrapper may correspond to the (normal) mantle of the stopper (and may for example consist of a charge, possibly with a foam composition.

For example, the outer wrapper (or cover) may be fixed such that some (possibly thickened) edges remain in the grooves or slits of the barrier and, when the inner wrapper is opened (in particular torn at the intended tear site), said edges pull out from these grooves or slits (and thus also do not hinder the inflation of the gas bag).

In particular, the blocking body may have a front (first) section made of (in particular hard) plastic, at which the connection point for the blocking body at the body of the child seat is located. The first or second front section may preferably have a seat belt guide for a seat belt for connecting the blocking body to the body of the child seat. The section is preferably surrounded at least rearwards and downwards by a second section made of foamed polymer, if possible also upwards by the second section.

The second section may be completely surrounded by the inner wrapper, or at least in the areas not covered by the first section. The groove or slit may be provided in the first section or formed by bonding them together between the first section and the second section.

The overwrap may be placed in a pouch around the second section so that the first section remains substantially visible (in the opening of the pouch).

It is also conceivable in principle that the outer wrapper does not open (is fried off) but also has weak points, for example defined tear points (tear seams) or is sufficiently elastic. Covers or flip-flops (e.g. closed with a hook and loop fastener) are also possible. In general, the tear site may be a section that is re-engageable together (without repair measures, such as stitching), or may be a structure that is not re-engageable together (without repair by means of an external device).

Particularly preferred is an elastically constructed outer wrapper, which is preferably provided such that it does not tear when the airbag is triggered.

F. Upper, lower and rear portions of the gas bag

According to a sixth independent aspect of the invention, a child restraint, in particular a child seat and/or a barrier, or a component of such a child restraint for installation in a vehicle is proposed, to solve the above-mentioned task (preferably according to the first and/or second and/or third and/or fourth and/or fifth aspects of the child restraint or a component of such a child restraint), comprising at least one airbag with at least one gas bag (and at least one gas generator) that is inflatable, wherein the gas bag is at least partially, preferably completely, in particular at least in an inflated state (if possible also in an uninflated state) covered: the upper side, the lower side and the back side (which faces the child in use) of the baffle.

Preferably, the gas bag is placed U-shaped around the baffle.

According to an embodiment, the gas bag should be uncovered at least in sections, preferably completely, in particular at least in the inflated state and/or in the non-inflated state: the front side of the blocking body (facing away from the child in use).

G. Coupling device

According to a seventh independent aspect of the invention, a child restraint, in particular a child seat and/or a barrier, or a component of such a child restraint for installation in a vehicle is proposed, in order to solve the above-mentioned task (preferably according to the child restraint of the first and/or the second and/or the third and/or the fourth and/or the fifth and/or the sixth aspect or a component of such a child restraint), comprising at least one airbag with at least one inflatable gas bag, wherein the gas bag has at least one coupling means (also referred to as a decoupling means in the following) for coupling the gas bag to the child restraint, in particular a second coupling means, and the gas bag is transferable from an uninflated state into an inflated state, wherein at least one, in particular the second coupling means is configured for decoupling when a predetermined force threshold is exceeded.

It is thus achieved that the gas bag is inflated further or more rapidly in the thickness direction at least in sections if the force threshold of the gas bag is exceeded, which is particularly advantageous if the child's head is thereby particularly protected. At the same time, the gas bag can preferably be designed to be relatively wide before triggering, so that little installation space is required, and/or the gas bag can be safely held in a preset position before triggering.

Preferably, the disconnection coupling device is remote from the gas inlet, in particular further than the at least one further (first) coupling device.

Particularly preferably, the at least one second coupling device is located at or near the upper front end of the support means (or the catch).

The at least one first (first) coupling device is preferably configured differently from the decoupling device, in particular such that it does not tear (or has not torn) when a predetermined force threshold is exceeded. According to an embodiment, the at least one first coupling device may be configured by a gas generator.

The disengagement is preferably achieved by providing structurally weakened locations. The taper and/or the perforation may be referred to herein. Depending on the embodiment, other or additional possibilities are also conceivable, such as a friction-locking connection and/or a push button and/or other releasable fastening.

In general, the (disconnection) coupling device/devices (when the force threshold is exceeded) can be destroyed, since the child seat should not be used anymore if possible after the airbag has been triggered. Alternatively, the (release) actuating device can also remain intact (when the force threshold is exceeded).

The force may preferably be a tensile force which acts on the coupling device via the gas bag, in particular when the gas bag is inflated. The direction of the force may preferably be along the blocking body or vertically away from the blocking body or a combination thereof.

In a specific embodiment, the airbag remains coupled to the blocking body with at least one (in particular the first) coupling means, which is preferably arranged closer to the gas inlet (when the force threshold is exceeded).

Alternatively or additionally, the gas bag itself may be manufactured such that the inflation thickness of the gas bag in the direction of the thighs and/or abdomen of the child located in the child seat (i.e. in the direction away from the baffle) is smaller than the inflation thickness in the direction of the intended collision of the head. Finally, a counter force acts on the pouch from the thigh and abdomen when it is inflated. Thus, in general, the gas bag remains relatively thin when inflated in the region of the thigh and abdomen, whereas in the head region the gas bag may be thicker and here retract from the side of the barrier facing away from the child. This allows the head to be caught earlier in the accident and reduces the risk of injury to the child.

H. Overview of the invention

By means of the different aspects of the invention (respectively per se, but in particular in combination), even in the case of more complex geometries, for example in the case of an airbag placed in a U-shape around the blocking body, the airbag or its gas bag is completely inflated before contact with the child. In particular, accidental or at least predefined tearing of the airbag (according to the fourth aspect of the invention) is thereby also avoided in a simple manner.

In particular, it is also possible to activate the airbag only in the event of an accident.

Modifications which can be combined with the first and/or second and/or third and/or fourth and/or fifth and/or sixth and/or seventh aspects of the invention, respectively, and which further contribute to the objects of the invention are explained below.

I. Ratio/extension of gas bag

According to an embodiment, in the uninflated state, the projection of the at least one gas pocket onto the assigned fixing area in the uninflated state of the gas pocket may be at least 0.5 times greater, preferably at least 0.8 times greater, still further preferably at least 0.9 times greater and/or at most 1.5 times greater, preferably at most 1.2 times greater in the inflated state.

In the inflated state, the at least one gas bag may have a thickness of at most 20cm, preferably at most 10cm and/or at least 1cm, preferably 2 cm. Thickness is understood to be the (maximum) extension of the gas bag in a direction perpendicular to the corresponding fixing area for the gas bag.

Alternatively or additionally, the gas bag may be configured to be at least substantially flat, in particular having a thickness which is smaller than the extension dimension in at least one direction perpendicular to the thickness direction.

Alternatively or additionally, the point furthest from the remainder of the child restraint or the remainder of the component parts of the child restraint is at most 20cm away, preferably at most 10cm away (in the inflated state).

The at least one gas bag may (in the inflated state) have an internal volume of at most 20 litres, preferably at most 12 litres and/or at least 1 litre, preferably at least 3 litres.

The gas bag has an outer face and an inner face, wherein each section of the inner face is in direct contact with (or at least in close proximity to) other sections of the inner surface in an uninflated state of the gas bag.

Preferably, the internal volume of the gas bag in the unaerated state is (significantly) smaller than the internal volume in the inflated state or is at most 10%, preferably at most 5% of the volume in the inflated state.

Fixation/arrangement of gas bag:

preferably, the gas bag has at least one connection means for connecting the gas bag to the (said) support means.

According to an embodiment, at least one (the at least one) gas bag may be arranged at the sitting region-underside and/or at least one gas bag may be arranged at the base underside of the base of the child seat, on which base underside the body is fixed.

At least one (the at least one) gas bag may be releasably secured or may be secured or non-releasably secured.

Furthermore, at least one gas pocket (the at least one gas pocket) can be arranged in the region of the front part (relative to the direction of travel) of the child seat, in particular in the region of the front part (relative to the direction of travel) of the sitting region-underside or underside of the base.

In one embodiment of the invention (including in particular at least the first aspect) the child restraint is configured as a child seat with a body having a seating section that can rest (via the underside) on a vehicle seat-seating section. Preferably, the child seat does not include support feet. Further preferably, the child seat comprises a barrier. In this embodiment, the child seat may further include a back rest, a headrest, and/or a top harness with or without wings. The seating section comprises an airbag at the underside (preferably in a front region of the seating section relative to the direction of travel), wherein the gas bag of the airbag is preferably (at least substantially) deployed in the uninflated state. It is particularly preferred that the gas bag lies flat against the underside of the seat section and increases at least in thickness when inflated in order to resist as much as possible the pressing-in of the seat section into the cushion of the motor vehicle seat (for example in the event of a drive crash). The gas bag may have a volume of less than 12 litres, preferably less than 8 litres.

In a further embodiment (preferably including at least the features of the first aspect) a base for a child seat is proposed as an integral part of a child restraint, wherein the base (in use) should rest with its underside at a motor vehicle seating section. Preferably, the base does not have support feet. The base can have an airbag at the underside (preferably in a front section relative to the direction of travel), wherein the gas pocket of the airbag is preferably at least substantially deployed in the uninflated state. In a preferred embodiment, the gas bag is (at least substantially) flat against the underside of the base and is inflated in the thickness direction upon triggering (at least or at least substantially only) to counteract sinking of the base into the cushion of the motor vehicle seat in the event of a crash. The gas bag may here have a volume of less than 12 litres, preferably less than 8 litres.

In another embodiment (preferably including at least the features of the first aspect) the child seat may have a body with at least one seating section configured for resting with an underside at the vehicle seating section or at the base. The child seat may include a shield. Preferably, the child seat or its main body furthermore has a backrest. The child seat may have additional elements such as wings, head rest, support feet, base, and/or other elements. The blocking body may have a right blocking body section and a left blocking body section configured for placement at a right side of the seating section and a left side of the seating section when the child seat is in the use configuration. The blocking body may furthermore have a middle (central) blocking body section connecting the right blocking body section and the left blocking body section, so that a first gap is formed between the middle blocking body section and the center of the sitting section in the use configuration of the child seat. If the main body comprises a backrest, a second gap is preferably configured between the middle blocking body section and the centre of the backrest (in the use configuration of the child seat). The first gap (and the second gap if present) is dimensioned such that the child can be seated in the child seat, wherein the thighs of the child extend at least partially through the first gap and the abdomen of the child and/or the chest of the child preferably extend at least partially through the second gap. The following may occur during the child's extension at least partially through the gap or gaps: the child's body does not completely fill the gap or gaps (in case of sudden acceleration) which may lead to a certain forward movement and/or subsidence (child subsidence). The blocking body thus preferably extends in the transverse direction of the child seat. The gas bag is preferably arranged at the support device, wherein the support device of the child seat or a component thereof can be, for example, a sitting section of the child seat or a blocking body of the child seat or a child seat back or a component of one of these elements or components. Other parts of the child seat are also contemplated. The gas bag may have a contact surface configured for (direct) contact with a person, in particular a child placed in the child seat, and/or a contact surface that is (direct) contact with a structure that constitutes a different element than the element with which the gas bag is provided, for example a structure of a transport vehicle in which the child seat is placed or another element of the child seat. This applies a force to the gas bag in case of sudden acceleration. The gas bag may furthermore have a support surface configured for being supported by the support means when the gas bag is inflated and the contact surface is subjected to a force. The contact surface and the support surface are part of the outer surface of the gas bag. The gas bag may furthermore have lateral surfaces which achieve a distance between the contact surface and the support surface and/or define such a distance.

The gas bag (in the inflated state of the airbag) may have at least a section which is at least substantially planar in configuration. This should preferably be understood as the gas bag having an extension in at least one first direction which is significantly narrower than an extension in at least one direction perpendicular to the first direction (for example a maximum of 50% of the extension in at least one direction perpendicular to the first direction or a maximum of 30% of the extension in at least one direction perpendicular to the first direction) in such a section. The contact and/or support surfaces of the airbag may have an aspect ratio of greater than 1, particularly greater than 1.5 (e.g., 2 or greater). The aspect ratio is the ratio of the first side (length) of the respective face to the second side (width) of the respective face. The turning means (if provided) may be particularly advantageous if the gas outlet of the gas generator and/or the gas inlet of the gas bag are arranged at (or close to) the shorter of the two sides of the support surface.

The gas bag may have a first coupling means enabling coupling of the gas bag with the support means. The first coupling means may either be a (separate) element fixed at the gas bag or may be constructed integrally with the gas bag. In an embodiment, the first coupling device may have an adhesive or a bonding portion, for example.

In a preferred embodiment, the first coupling means may be configured for co-acting with the second coupling means formed by (separate) means and/or provided by the support means (support element). The first and second coupling means may for example comprise a snap-on mechanism (e.g. a push-on key), a "welting mechanism" (a strake mechanism), a crimping mechanism, rivets and/or bolts and/or screws. In particular, the gas bag may comprise a hole configured for preventing connection with a fixation device (e.g. screw). The first coupling means, in particular the holes, can be arranged on the "bulk region" or the marginal edge of the support surface.

At least one wall of the gas bag may have an opening, in particular a hole (in particular if at least one turning means and/or at least one coupling means is provided). In this case, the respective opening may be bordered by a seam.

The openings and/or seams may be reinforced (especially impregnated) with a material to reduce leakage. Such a sealing material may be, for example, an adhesive tape or a coating or the like. If the airbag is triggered in the event of sudden acceleration, this can occur: the uninflated or only partially inflated gas bag is loaded with a force to resist further inflation. In this case, it may be particularly advantageous if the support device has a structure with at least one groove (in particular a plurality of grooves), which corresponds to at least one channel(s) of the gas bag and, if necessary, at least one bridge, which is formed by the deflection device. In this way a sufficient gas flow can be maintained even if the pressure on the gas bag would otherwise prevent further inflation.

III. baffle

The baffles can be divided (conceptually) as follows. In particular, the following should apply: the front (or front region) describes the section pointing away from (or away from) the child; the rear (or rear region) describes the section facing the child (or against which the abdomen/chest of the child rests); the lower part (or lower region) describes the section facing the child's leg (or against which the child's leg rests); and the upper portion (or upper region) describes a section that points upward (that would be in contact with the child's head if the child's head were to bend or press forward or accelerate). Instead of the front (or front region), an outer (or outer region) may also be mentioned. Instead of the rear (or rear region), an interior (or interior region) may also be mentioned. The respective region with respect to the inflated and/or non-inflated state preferably ends over half a stroke in the downward-upward direction (or vice versa) or over half a stroke in the backward-forward direction (or vice versa) (preferably in the case of 30% of the stroke, further preferably in the case of 20% of the stroke), which condition/conditions should at least be applicable to the use state of the blocking body (e.g. the inclination setting), if possible to all use states of the blocking body. Thus, for example, if an element is arranged in the lower region, this preferably means that the element is arranged such that it does not (upwardly) exceed a limit (used as an example) of 30% in at least one or each use state (e.g. inclination setting) of the blocking body.

The baffle and/or the central baffle section of the baffle may have a bottom face (lower face) configured for being directed towards the thighs (and seating section) of the child and an inner (rear) face configured for being directed towards the abdomen and/or chest of the child (and towards the backrest of the child seat if present, and towards the backrest of the vehicle seat if present).

The blocking body may preferably furthermore comprise an upper face opposite the lower face. The baffle may also have an outer (front) face opposite the inner (rear) face. Alternatively, the baffle may comprise (in the normal use state) other faces directed away from the child, for example a face connecting (directly) the bottom or lower face and the inner face.

The barrier may have a gas pocket of the airbag (in particular at least at a section of the lower face, whereby the gas pocket resists sinking by inflation, and/or at least a section of the inner face, whereby the gas pocket resists forward movement of the child when inflated, and/or at least a section of the upper face and/or wrapped around the barrier, whereby it covers at least a section of two of the above-mentioned sides of the barrier next to each other or all three of the above-mentioned sides next to each other, whereby the gas pocket preferably expands substantially in the uninflated state.

In a preferred development, the gas bag preferably lies substantially flat against the blocking body (in particular against the central section of the blocking body) and increases in its thickness (in the inflated state) in order to better restrain the child (when the gas bag is arranged at the lower or bottom and/or inner face).

Alternatively or additionally, the gas bag is configured for cushioning a collision of the child's head (when the gas bag is arranged at the upper face), in particular in a cushion manner. The gas bag may rest on a section of the baffle which is configured to act as a damping means (e.g. as an EPP or EPS component), wherein the baffle furthermore has an at least substantially solid or dimensionally stable section (e.g. as a molded component). The gas bag may have a volume of less than 15 litres, preferably less than 10 litres.

Preferably, the barrier comprises a gas generator of the airbag.

The gas generator may be arranged at or near the bottom or lower face of the central section and/or away from the inner face of the central section (which is arranged in the central section or the left or right section of the baffle).

Preferably, the blocking body or at least one of its components, in particular at least the face on which the airbag is arranged, is covered with a "soft" product, for example with a textile cover or other suitable soft material, in order to design the blocking body in a mat-like manner and to improve comfort.

Preferably, the blocking body can essentially consist of foamed polymer (EPS, EPP), if possible it can be constructed in sections (for example in the region of the belt guide) from stronger materials (plastics, for example PP). The gas generator may be arranged in the hollow space of the baffle, preferably in the region formed by the foamed polymer. The hollow space can be dimensioned such that the gas generator is (also) held by clamping. Alternatively or additionally, a force-locking hold may be provided.

Preferably, at least one gas bag is arranged at the barrier. Alternatively or additionally, the blocking body may be formed at least in sections from a soft, in particular foamed, material such as EPS and/or EPP. Alternatively or additionally, the blocking body may be formed at least in sections from a harder, in particular non-foamed material, in particular a plastic, for example PP. The gas generator (which may be arranged in the receptacle of the shielding body (which shielding body) is formed, in particular at least in part, from a soft and/or foamed material, and/or is fixed in a force-locking manner, in particular by a clamping holder and/or a form-locking manner and/or a material-locking manner, or alternatively is connected loosely to the shielding body.

The blocking body (said blocking body) can have a left blocking body section, a right blocking body section and a middle (central) blocking body section arranged between the left blocking body section and the right blocking body section, wherein the at least one gas pocket is preferably arranged, in particular exclusively, on the middle blocking body section.

At least one gas bag (the at least one gas bag) can be covered at least in sections, preferably completely, in particular at least in the inflated state, if possible also in the uninflated state: the upper and/or lower side of the baffle (said baffle) and/or the side facing the child in use; and/or at least partially, preferably completely, in particular at least in the inflated state and/or in the uninflated state, without covering: the side of the baffle facing away from the child in use.

IV. others

In embodiments, the child seat does not include support feet (although such support feet may be provided).

The gas generator is preferably a cold gas generator.

Further embodiments result from the dependent claims.

Drawings

In the following, the invention is explained with reference to further features and advantages by means of the drawings.

Here:

fig. 1 shows a schematic view of an airbag according to the prior art;

Fig. 2 shows a cross section of a baffle according to the invention;

fig. 3 shows a cross section similar to fig. 2 of another embodiment of a blocking body according to the invention;

fig. 4 shows a representation similar to fig. 2 of a blocking body according to a further embodiment of the invention;

fig. 5 shows a representation similar to fig. 2 of a blocking body according to a further embodiment of the invention;

fig. 6 shows a view similar to fig. 2 of a blocking body according to a further embodiment of the invention;

fig. 7 shows a view similar to fig. 2 of a blocking body according to a further embodiment of the invention;

FIG. 8 shows a child seat according to the invention in an oblique view;

fig. 9 shows the child seat according to fig. 8 in a view from above;

FIG. 10 shows another embodiment of a child seat according to the invention in an oblique view;

FIG. 11 shows the child seat according to FIG. 10 in a view from below;

FIG. 12 shows a child seat according to the invention in a side view in section;

FIG. 13 shows the child seat according to FIG. 12 with an inflated airbag;

FIG. 14 shows a schematic view of a gas bag according to the invention with a gas generator;

FIG. 15 shows a schematic view of another gas bag according to the invention with a gas generator;

FIG. 16 shows a schematic view of another gas bag according to the invention with a gas generator;

FIG. 17 shows a schematic view of a gas bag according to the invention with a gas generator;

FIG. 18 shows a schematic view of a second gas bag according to the invention with a gas generator;

FIG. 19 shows a schematic view of another gas bag according to the invention with a gas generator;

FIG. 20 shows a schematic view of a gas bag with a gas generator according to another embodiment of the invention;

FIG. 21 shows a schematic view of a gas bag with a gas generator according to another embodiment of the invention;

fig. 22 shows a schematic cross-sectional view of the gas bag 71 according to fig. 21;

FIG. 23 shows a schematic view of a cross section of a gas bag similar to FIG. 22, according to another embodiment;

FIG. 24 shows an oblique view of a baffle according to the present invention;

FIG. 25 shows a view of the blocking body according to FIG. 23 in an exploded view;

FIG. 26 shows a schematic view of a gas bag with a gas generator according to another embodiment of the invention;

fig. 27 shows a detail of the embodiment according to fig. 26: and

Fig. 28 shows a detail of fig. 27 in a variant.

The same reference numerals are used for the same and identically acting components in the following description.

Detailed Description

I. Description of the drawings

Fig. 1 (with reference numerals omitted therefrom) is taken from US5184844a and shows an airbag in which a majority of the outer face of the gas bag is in contact with, or at least very close to, other parts of the outer face of the gas bag (due to the schematic nature of the figure, whether the sections should actually be in contact will ultimately remain open on the drawing, but this may in practice be the case). The airbag shown here has significant folds.

Fig. 2 shows a cross section of a blocking body 50 with a gas pocket 71 of an uninflated airbag. The gas pocket is placed around the bottom face 51B and the inner (rear) face 51I of the central baffle section 51. The gas bag has a gas inlet, which allows filling the airbag with gas. The gas bag of this embodiment may have a volume of 2-7 litres, preferably 3-5 litres.

Fig. 3 shows a cross section of a baffle 50, wherein the central section 51 of the baffle has an upper face 51T, an inner (or rear) face 51I, a bottom (or lower) face 51B and an outer (or front) face 51O.

Fig. 4 shows a blocking body 50 with a gas pocket 71 of the airbag in the uninflated state. The baffle includes a gas generator 72 configured to fill the gas pocket 71 with gas in the event of a collision. The gas bag of this embodiment may have a volume of 3-15 litres, preferably 5-9 litres.

Fig. 5 shows a cross section of a blocking body 50 with a gas pocket 71 of an airbag in the uninflated state. The gas pocket is placed around the bottom or lower face 51B, the inner (rear) face 51I and the upper face 51T of the central (middle) baffle section 51. The gas bag has a gas inlet, which allows filling the airbag with gas.

Fig. 6 shows a cross section of a blocking body 50 with a gas pocket 71 of an airbag in the uninflated state, wherein the blocking body has an at least substantially fixed section 54 and a (for example foamed) damping means 55.

Fig. 7 shows a cross section of a blocking body 50 with a gas bag 71 of an airbag in the uninflated state, wherein the blocking body has fastening means 56 for (releasably) fastening the blocking body at the child seat. The securing means 56 may comprise a seat belt system (which may be adapted in its length) and a seat belt tongue configured for engagement with a seat belt buckle of a child seat.

Fig. 8 shows a child seat 10 having a main body 20, a base 90, a blocking body 50, and an airbag 70 (not shown in detail). The main body includes a seating section 21 (having a middle section 21M, left side 21L, and right side 21R), a backrest 22, side wings 23, a headrest 24, a first fixing device 27, a side collision protection 29, and a third fixing device 31 (not shown). The blocking body extends substantially in the transverse direction T and has a middle (central) section 51, a left section 52, a right section 53, a sixth securing means 56 and a cover 57. The base has a fifth securing means 91, a fourth securing means 93 (not shown) and a support foot 92. A gap 121 is formed between the central section 51 (in particular the bottom surface 51B thereof, not visible in the figures) and the middle section 51M of the sitting section 21.

Fig. 9 shows the child seat 10 of fig. 8 in a view from above, wherein a second gap 122 is visible between the central section 51 (in particular its inner or rear face 51I, not visible in the figures) and the backrest. The airbag may be implemented according to one of the embodiments shown in fig. 2-7.

Fig. 10 shows a child seat 10 having a main body 20, a blocking body 50 and an airbag 70 (not shown in detail 70). The main body 20 includes a seating section 21 (having a middle section 21M, left side 21L, and right side 21R), a backrest 22, side wings (or side walls) 23, a headrest 24, a first fixing device 27, a side collision protection portion 29, and a second fixing device 28. The blocking body extends at least substantially in the transverse direction T and has a central section 51, left and right sections 52, 53 and a cover 57. A first gap 121 is formed between the central section 51 (in particular the bottom surface 51B thereof, not visible in the figures) and the middle section 21 of the sitting section.

Fig. 11 shows the child seat 10 according to fig. 10 in a view from below, wherein the airbag 70 is provided with a gas bag 71 (in the front section of the bottom face 21B of the seating section 21), a gas generator 72, a sensor 74 and a connection 75. The sensor 54 is a part of a control section (controller) 73, which is not shown in detail. According to one of the embodiments shown in fig. 2-7 or according to any other embodiment of the invention, an additional airbag can be provided in the blocking body. The gas bag of this embodiment may have a volume of less than 10 liters.

Fig. 12 shows (partially in cross section) a child seat 10 having a body 20, a base 90, a blocking body 50, and an airbag 70. The body comprises a seating section 21, a backrest 22, a headrest 24 and first securing means 27. The blocking body 50 extends (at least substantially) in the transverse direction T and has sixth fastening means 56. The airbag 70 comprises a gas bag 71 placed around the central section 51 of the baffle (such that the bottom face 51B, the inner face 51I and the upper face 50T are at least partially, if possibly completely, covered by the gas bag 71, against which the gas bag is at least substantially flat), a gas generator 72, which is preferably arranged in the hollow space of the baffle and connected to a control (controller) 73 by means of a connection 75.

The first gap 121 extends between the bottom face 51B of the central section 51 of the baffle and the seating section 21, wherein the gas generator 72 is arranged close to the front end of the first gap 121 (i.e. away from the abdomen of the child), for example at the front end of the bottom face 50B and/or at the front end of the outer (front) face 51O. The second gap 122 extends between the inner (rear) face 51 of the central section 51 of the block and the backrest 22. The first gap 121 and the second gap 122 are configured for receiving the legs and abdomen of the child or the chest of the child. The first and sixth securing means 27, 56 are configured for co-action such that the blocking body 50 is (firmly) secured at the main body 20 and restrains a child seated in the child seat. The base 90 has a support foot 92, a fifth fixture 91 (in particular an Isofix anchor) and a controller (control) 73, wherein the controller 73 has a sensor 74 which is arranged in or near the fifth fixture 91. The airbag 70 may be implemented according to fig. 7, or alternatively, according to any of the embodiments shown in fig. 2-6, or according to yet another embodiment of the present invention.

Fig. 13 shows the child seat 10 of fig. 12, wherein the (now) airbag 70 is in its inflated state. The gas pocket 71 is filled with gas, so that the first gap 121 and the second gap 122 are (now) constructed narrower to restrict the (initial) forward movement of the child relative to the child seat. The ridge of the surface of the upper face 51T is configured to receive the head of a child. The gas bag of this embodiment may have a volume of at least 3 liters, preferably at least 5 liters, and/or a volume of less than 15 liters, preferably less than 10 liters.

Fig. 14 shows a schematic view of a (rectangular) gas bag 71 and a gas generator 72. The gas generator 72 has a gas outlet 80 arranged within the gas bag 71 near the edge of the gas bag. The gas bag 71 comprises a steering device 77 having a straight and parallel arrangement (linear and/or linear arrangement) of steering structures to each other. A connection 75 is provided at the gas generator 72 to connect the gas generator 72 with a controller (not shown).

Fig. 15 shows a schematic view of a (trapezoidal) gas bag and a gas generator. The gas bag has a proximal section 78 close to the gas outlet of the gas generator and a distal section 79 further away from the gas outlet, and has a steering device with a (preferably wire-structured) steering structure, which is structured straight and (slightly) radial. A connection is provided at the gas generator to connect the gas generator with a controller (not shown).

Fig. 16 shows a schematic view of a gas bag and a gas generator. The gas generator 70 has a gas outlet 80 which is connected via a gas connection 76 to a gas inlet 81 of the gas bag. The gas bag has a steering device with a (preferably wire-structured) steering structure which is curved and (slightly) radiating. A connection is provided at the gas generator to connect the gas generator with a controller (not shown).

Fig. 17 shows a schematic view of a gas bag 71 and a gas generator. The gas generator has a gas outlet arranged within (near the centre of) the gas bag. The gas bag has two steering devices 77 each having a set of (preferably wire-constructed) steering structures that are curved and parallel to the respective same set of steering devices 77. A connection is provided at the gas generator to connect the gas generator with a controller (not shown).

Fig. 18 shows a schematic view of an airbag 70 comprising a gas bag 71, a gas generator and a controller 73 with a sensor 74. The gas outlet of the gas generator is connected to the gas inlet of the gas bag 71 via a gas connection. A connection is provided at the gas generator to connect the gas generator with the controller 73.

Fig. 19 shows a schematic view of a (rectangular) gas bag and a gas generator 72. The gas generator has a gas outlet 80 arranged within (near its centre) the gas bag. The gas bag comprises two deflection means 77 each having a set of deflection structures which are curved and are configured parallel to each other. A connection 75 is provided at the gas generator to connect the gas generator to a controller (not shown).

Fig. 20 shows a schematic view of a gas bag and a gas generator. The gas bag has a proximal section 78 close to the gas outlet of the gas generator and a distal section 79 further away from the gas outlet. The gas bag has two deflection devices, each having a set of (preferably wire-structured) deflection structures, which are configured straight and (slightly) radially. A connection is provided at the gas generator to connect the gas generator with a controller (not shown).

Fig. 21 shows a schematic view of a gas bag 71 and a gas generator 72. The gas pocket 71 has a short edge extending in one direction X-X and a long edge perpendicular to the short edge, said long edge extending in one direction Y-Y. The gas bag 41 also has a diverting means 77 having a diverting structure which is constructed straight and parallel to each other and is covered by a seal 82. Furthermore, the gas bag 71 has coupling means 83 and 83' which are configured for coupling the gas bag at the support element. The coupling means 83 are each arranged on an associated projection of the gas bag 71, which projection projects from a section of the gas bag configured to be filled with gas. These protrusions may either be selected to be integral with one of the walls of the gas bag or may be fixed as separate elements at (the respective wall).

The coupling means 83' may be arranged in the contact face 71c and the support face 71s (as shown in the figure) or only in the support face 71s of the airbag 71. Coupling device 83' may be covered by a seal and aligned with the steering structure of steering device 77 to support the steering of the gas flow in the proximal-distal direction. A connection 75 is provided at the gas generator 72 to connect the gas generator 72 with a controller (not shown).

Fig. 22 shows a schematic view of a cross section of the gas bag 71 as shown in fig. 21 along the broken line a. In fig. 21 it is not visible whether the gas bag 71 is inflated or not, which is shown here in its inflated state. It can be seen that the gas bag is (at least substantially) planar in at least the region of the section of the cross section shown (this can also be applied in general to all cross sections not shown). The height of the gas pocket extends in one direction Z-Z (which is perpendicular to the direction X-X and the direction Y-Y and is indicated by the distance of the two arrows) and is (significantly) smaller than the width extending in the direction X-X (here: less than 10%). It is also seen that the steering device 77 or its steering structure helps to limit the height. The (e.g. flat) surface of the support element is not shown.

Fig. 23 shows a schematic view of a cross section of a gas bag 71 along the dashed line a similar to fig. 22 in an alternative embodiment to that shown in fig. 22. The gas bag 71 is also shown here in its inflated state. The difference from fig. 22 is that the surface of the support element is not flat, but has a bridge 111 and a groove 112, which are aligned with the structure of the steering device 77 or with the channel 84. Each channel 84 faces a recess 112 and each steering structure of the steering device faces a bridge 111. In this way, even if a specific pressure is applied to the contact surface 71c of the gas bag 71, a sufficient gas flow can be ensured.

Fig. 24 shows an oblique illustration of a blocking body according to the invention. The stopper has a first (firm) section 58 and a second (softer) section 59 and an inner wrap 60. Inside the inner wrapper 60 a gas bag (not visible) is placed. The inner wrapper 60 comprises tear slits 61 provided such that they tear at a predetermined pressure, whereby the gas bag can be inflated. A belt guide 62 is arranged in the first section 58, through which a vehicle belt or a child seat belt can be guided for retaining the blocking body (and thus the child).

An outer wrap or mantle may be disposed about the inner wrap 60 (not shown).

The first section 58 is preferably made of non-foamed plastic. The second section 59 is preferably made of foamed plastic.

Fig. 26 shows a further embodiment of a blocking body according to the invention (in particular as an integral part of a child seat).

The baffle has a central baffle section 51 and a gas pocket 71. The blocking body may basically be configured as shown in fig. 21 (although this is not mandatory), in particular with respect to the coupling devices 83, 83' (with the materialization explained below).

In particular, the blocking body according to fig. 26 to 28 may have a coupling element 83, which can be used, for example, in the region of the coupling element shown in fig. 21 "lower" with respect to the drawing sheet. In particular (in connection with the baffle), these coupling devices 83 (see fig. 26) may be coupling devices which are arranged in the front third of the baffle at the upper part of the baffle, in particular at (or close to) the upper end of the front part of the baffle, for example at most 2cm or at most 4cm or at most 5cm from the upper end of such front part.

These (release) coupling means 83 can be configured as shown in fig. 27, i.e. in particular have (shown in dashed lines) defined tear points and/or defined breaking points which tear or break when a predetermined force threshold is exceeded. These tear-setting points and/or fracture-setting points can, for example, have one or more perforations (for example, at least 2 or at least 3 or at least 5, in particular perforations arranged in a line).

Alternatively or additionally, a taper (as shown in fig. 28) may also be provided, which also defines the set tear point and/or the set break point. A combination of solutions according to fig. 27 and 28 is also possible in this respect. Specifically (this is not mandatory), according to the embodiment according to fig. 28, a pair of tapering portions are provided opposite to each other (where the broken line is drawn in fig. 27).

The force threshold is preferably predetermined such that it is exceeded (forced) when the airbag is triggered. However, this is not mandatory. For example, it is also conceivable to set the force threshold higher, and in this respect consider: additional forces may be generated by, for example, the child's body affecting the distribution of forces generated by the inflation of the gas bag.

It should be pointed out at this point that all parts described above are themselves regarded individually and in any combination, in particular the details shown in the figures, as improvements of the invention. Wherein modifications are possible.

It should also be noted at this point that all the components or features described above are individually themselves, even without the features additionally described in the respective context, even if these features are not explicitly identifiable individually as optional features in the respective context, for example by using: in particular, it is preferred that individual designs or improvements of the invention, such as, for example, as possible, brackets, etc., or in combination or any sub-combination, should be regarded as being defined in particular in the description introduction and in the claims. Wherein variants are possible. In particular, it should be noted that words, in particular or parentheses, should explicitly characterize the optional feature in the respective context.

Finally, it should be pointed out that the present patent application (in case of registration or authorization: the present patent) is intended to protect the invention as broadly as possible. It is requested that this be noted at the time of reading, especially in respect of (intermediate) generalizations of the explicitly disclosed features or combination of features.

List of reference numerals

T transverse direction

10. Child seat

20. Main body

21. Seating section

21R right side (of sitting section)

21L (of sitting section)

21B bottom/underside (of sitting section)

21M (of sitting section)

22. Backrest for chair

23. Wings/side walls

24. Headrest for head

25. Supporting leg

26. Top lacing

27. First fixing device

28. Second fixing device

29. Side collision protection part

31. Third fixing device

50. Baffle body

51. Center baffle section

51B bottom/lower face (of central baffle section)

51I inner/rear face (of central baffle section)

51T upper face (of central block section)

51O outer/upper faces (of central baffle section)

52. Left baffle section

53. Right baffle section

54 Secure section (of a baffle)

55 Damping device (of a baffle)

56. Sixth fixing device

57. Covering piece

58. First section

59. Second section

60. Inner wrapping

61. Tear seam

62. Seat belt guide

70. Safety air bag

71. Safety bag

71c contact surface

71s supporting surface

72. Gas generator

73. Controller for controlling a power supply

74. Sensor for detecting a position of a body

75. Connecting part

76. Gas connection part

77. Steering device

78. Proximal section

79. Distal section

80. Gas outlet

81. Gas inlet

83. 83' coupling device

84. Channel

90. Base seat

90B (bottom/underside of base)

91. Fifth fixing device

92. Supporting leg

93. Fourth fixing device

121. First gap

122. Second gap

110. Support element

111. Bridging portion

112. Groove

Claims

1. A child restraint device for installation in a vehicle, in particular a child seat (10) and/or a barrier (50), or a component of such a child restraint device, comprises at least one airbag with at least one inflatable gas bag (71),

wherein the gas bag is transferable from an unaerated state into an inflated state, wherein the gas bag (71) in the unaerated state is at least substantially unfolded, and/or

The outer face of the gas bag (71) in the uninflated state of the gas bag (71) is configured such that at most 25% of the outer face is adapted to: the corresponding outer face-perpendicular line intersects the outer face at a second point of the outer face, and/or

In the uninflated state of the at least one gas bag (71), at most 25% of the outer face of the gas bag is directly against a further portion of the outer face.

2. Child restraint device or a component of such a child restraint device according to claim 1, characterized in that up to 25% of the outer face of the gas bag (71) in the uninflated state is adapted as follows: the starting point of the outer face considered in each case rests against a further point of the outer face which is not directly adjacent to the starting point.

3. Child restraint device or a component of such a child restraint device according to claim 1 or 2, characterized in that at most 25% of the outer face of the gas bag (71) in the uninflated state is adapted to: for the starting point of the outer face, there is a further point of the outer face which can be reached by a shortest path along the outer face of the gas pocket (71) of 1cm or more and at the same time by a shortest straight-line path of 0.5cm or less.

4. Child restraint device, in particular child seat (10) and/or barrier (50), for being placed in a vehicle, or a component of such a child restraint device, preferably a child restraint device according to one of the preceding claims or a component of such a child restraint device, comprising at least one airbag with at least one gas bag (71) that is inflatable, wherein the gas bag (71) can be transferred from an uninflated state into an inflated state, wherein the at least one gas bag (71) is provided with at least one turning device (77) for turning a gas flow when transferred from an uninflated state into an inflated state, in particular the at least one gas bag (71) has such a turning device (77).

5. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, wherein the turning means (77) comprises at least one local fixation of at least one section of the inner wall of the gas bag (71).

6. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, characterized in that the at least one gas bag (71) comprises a contact wall section (71 c) and a support wall section (71 s), which contact wall section can be contacted from the outside, for example by a child in the event of an accident, at which support wall section the gas bag (71) is supported on a support device of the child restraint device, wherein the turning device (77) comprises a local approach, in particular a fixation, of the contact wall section and the support wall section relative to each other.

7. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, characterized in that the turning means (77) comprise at least one stitch and/or rivet and/or bond and/or weld of two mutually opposite wall sections of the gas bag (71).

8. Child restraint device or component part of such a child restraint device according to any one of the preceding claims, characterized in that a channel (84) or channels (84) and/or a partition wall or partition walls are/is formed by the steering device (77) at least in an inflated state.

9. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, characterized in that the at least one gas bag (71) has a gas inlet (81) and/or a gas outlet (80) of a gas generator (72) belonging to the airbag (70) is located within the gas bag (71), wherein the gas bag (71) comprises a proximal region (78) formed by the surroundings of the gas inlet (81) or gas outlet (80) and at least one distal region (79) remote from the gas inlet (81) or gas outlet (80), wherein the at least one turning device (77) turns a gas flow from the proximal region (78) towards the distal region (79).

10. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, wherein the gas bag (71) is supported on a support device, wherein the steering device (77) comprises at least one structuring, in particular preferably channel-like, depression (112), of the support device (110), wherein the structuring preferably at least partially corresponds to a corresponding structuring of the gas bag (71), preferably such that at least one bridge of the support device at least partially overlaps at least one fixing or approach of two inner wall sections.

11. Child restraint device, in particular child seat (10) and/or barrier (50), preferably child seat with barrier (50), or a component of such a child restraint device, preferably a child restraint device according to any one of the preceding claims or a component of such a child restraint device, comprising at least one airbag with at least one gas bag (71) that is inflatable and at least one gas generator, wherein the gas bag (71) can be transferred from an uninflated state into an inflated state, wherein the gas generator is arranged inside the gas bag (71) or at the lower and/or front side of the gas bag (71), and/or at least one gas inlet opening into the gas bag (71) is arranged in the lower and/or front region of the gas bag (71).

12. Child restraint device or component part of such a child restraint device according to any one of the preceding claims, wherein the gas generator is not arranged at the upper side of the gas bag (71) and/or at the back side of the gas bag and/or wherein the gas inlet into the gas bag (71) is not arranged in the upper region of the gas bag (71) and/or in the rear region of the gas bag.

13. Child restraint device or component part of such a child restraint device according to any one of the preceding claims, wherein the gas generator is arranged extending horizontally and/or transversely to the line of sight and/or the driving direction of the child.

14. Child restraint device, in particular child seat (10) and/or barrier (50), for being placed in a vehicle, or a component of such a child restraint device, preferably a child restraint device according to any one of the preceding claims or a component of such a child restraint device, comprising at least one airbag with at least one gas bag (71) and at least one gas generator, which gas bag (71) can be transferred from an uninflated state into an inflated state, wherein the gas bag (71) is provided with at least one pressure limiting device such that, when a predetermined pressure is at least partially reached or exceeded, a depressurization is effected by letting out gas from the gas bag (71).

15. Child restraint device or component part of such a child restraint device according to any one of the preceding claims, characterized in that the depressurization takes place at least in the lower and/or rear region of the gas bag (71) and/or at the edge of the gas bag (71) in case of triggering.

16. Child restraint device or component part of such a child restraint device according to any one of the preceding claims, wherein the pressure limiting device is arranged in the vicinity of and/or at the same height as a gas inlet into the gas bag (71).

17. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, wherein the pressure limiting device comprises at least one set breaking point and/or set tearing point, preferably a tear seam and/or at least one valve.

18. A child restraint apparatus or a component of such a child restraint apparatus according to any one of the preceding claims, wherein the predetermined pressure is at least 3 bar and/or at most 25 bar.

19. Child restraint device, in particular a barrier (50) or a child seat (10) with such a barrier, or a component of such a child restraint device, preferably a child restraint device according to any one of the preceding claims, for installation in a vehicle, comprising at least one airbag with at least one inflatable gas bag (71) and at least one first wrap, in particular an inner wrap, surrounding the gas bag (71), which is fixedly connected to the barrier body (50) and/or wraps the gas bag (71) such that the gas bag is inaccessible.

20. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, characterized in that an outer wrapper is arranged around the inner wrapper (60), which outer wrapper is e.g. possibly elastically configured and/or removable from the barrier-body (50) and/or preferably detachably connected with the barrier-body (50) by triggering of an airbag.

21. Child restraint device or a component of such a child restraint device according to any one of the preceding claims, wherein the inner wrapper (60) is at least partly elastic and/or has at least one set breaking point and/or at least one set tearing point such that the inner wrapper (60) breaks apart or tears open upon triggering of the airbag.

22. Child restraint device or component part of such a child restraint device according to any one of the preceding claims, wherein the inner wrapper (60) at least partly, if possibly completely, covers, preferably encloses, the at least one upper side, back side and underside of the stopper-body (50) in a bag-like manner.

23. Child restraint device or a component of such a child restraint device according to any one of the preceding claims, wherein the inner volume of the inner wrapper is smaller than the inner volume of the gas bag (71) in the triggered state of the airbag when the airbag is not triggered.

24. Child restraint device, in particular child seat (10) and/or barrier (50), for placement in a vehicle, or a component of such a child restraint device, preferably a child restraint device according to any one of the preceding claims or a component of such a child restraint device, comprising at least one airbag with at least one gas bag (71) that is inflatable, wherein the gas bag (71) covers at least in sections, preferably completely, in particular at least in an inflated state: the upper side, the lower side and the back side of the baffle body (50).

25. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, wherein the gas bag (71) is uncovered at least partly, preferably completely, in particular at least in an inflated state and/or in an uninflated state: the front side of the baffle (50).

26. A child restraint, in particular a child seat (10) and/or a blocking body (50), for installation in a vehicle, or a component of such a child restraint, comprising at least one airbag having at least one inflatable gas bag (71), wherein the gas bag has at least one coupling means, in particular a second coupling means (83), for coupling the gas bag to the child restraint, and can be transferred from an uninflated state into an inflated state, wherein the at least one coupling means (83), in particular the second coupling means, is configured for decoupling when a predetermined force threshold is exceeded.

27. Child restraint device or a component of such a child restraint device according to any one of the preceding claims, characterized in that the projection of the at least one gas pocket (71) onto the assigned fastening area in the unaerated state is at least 0.5 times larger and/or at most 1.5 times larger in area in the inflated state.

28. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, wherein the at least one gas bag (71) has in an inflated state: a thickness of at most 30cm, preferably at most 18cm, and/or at least substantially flat, in particular having a thickness which is smaller than the extension in at least one direction perpendicular to the thickness direction, and/or a point furthest from the remainder of the child restraint or the remainder of the component parts of the child restraint is at most 30cm, preferably at most 18cm away.

29. Child restraint device or a component of such a child restraint device according to any one of the preceding claims, wherein the at least one gas bag (71) has an internal volume of at most 20 litres, preferably at most 12 litres and/or at least 1 litres, preferably at least 3 litres in an inflated state.

30. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, characterized in that the gas bag (71) has at least one connection means (83, 83') for connecting the gas bag (71) with a support means (110).

31. Child restraint device or component part of such a child restraint device according to any one of the preceding claims, characterized in that at least one gas bag (71) is arranged at the sitting area-underside (21B) and/or at least one gas bag (71) is arranged at the base underside (90B) of the base (90) of the child seat, the body (20) being fixed or, in particular, releasably fixed to the base.

32. Child restraint device or component part of such a child restraint device according to any one of the preceding claims, characterized in that at least one gas bag (71) is arranged in a front region of the child seat, in particular in a front region of the sitting region-underside (21B) or the base underside (90B).

33. Child restraint device or component part of such a child restraint device according to any one of the preceding claims, characterized in that the child restraint device comprises or is formed by a barrier (50), wherein at least one gas pocket (71) is preferably arranged at the barrier (50) and/or the barrier (50) is formed at least in sections of a soft, in particular foamed, material, such as EPS and/or EPP and/or at least in sections of a harder, in particular non-foamed, material, in particular a plastic, such as PP.

34. Child restraint device or component part of such a child restraint device according to one of the preceding claims, characterized in that the child restraint device comprises or is formed by a blocking body (50), wherein a gas generator is arranged in a receptacle of the blocking body (50), in particular at least partly formed of a soft and/or foamed material, and/or is fixed in a force-locking manner, in particular by a clamping holder and/or a form-locking manner and/or a material-locking manner, or alternatively is loosely connected to the blocking body (50).

35. Child restraint device or component part of such a child restraint device according to one of the preceding claims, characterized in that the child restraint device comprises or is formed by a stopper (50), wherein the stopper (50) has a left stopper section (52), a right stopper section (53) and an intermediate stopper section (51) arranged between the left stopper section and the right stopper section, wherein at least one gas bag (71) is preferably, in particular only, arranged at the intermediate stopper section (51).

36. Child restraint device or a component part of such a child restraint device according to any one of the preceding claims, characterized in that the child restraint device comprises or is formed by a barrier (50), wherein at least one gas bag (71) covers at least in sections, preferably completely, in particular at least in an inflated state, if possible also in an uninflated state: the upper and/or lower side of the baffle (50) and/or the side facing the child in use; and/or at least partially, preferably completely, in particular at least in the inflated state and/or in the uninflated state, without covering: the side of the baffle facing away from the child in use.

37. A method for manufacturing or configuring a child restraint device or a component part of such a child restraint device according to any one of the preceding claims, wherein the gas bag (71) is preferably secured and/or stowed in an uninflated state such that the gas bag is at least substantially unfolded and/or such that an outer face of the gas bag (71) is configured in an uninflated state of the gas bag (71) such that at most 25% for the outer face is adapted to: the respective outer face-vertical line intersects the outer face at a second point of the outer face and/or is fixed and/or retracted such that, in the uninflated state of the at least one gas pocket (71), at most 25% of the outer face of the gas pocket (71) is directly against a further portion of the outer face.