Child safety seat for attachment to a vehicle seat

Abstract

To provide a child safety seat in which the child is restrained safely and simply during rapid accelerations, particularly in the event of a collision in such a manner that the danger of serious injuries is reduced.SOLUTION: The invention relates to a child safety seat for attaching to a motor vehicle seat, comprising: a seat region (11); a back portion (10); an impact shield (14), the impact shield comprising an integrated airbag (15) and / or an airbag being provided in the seat region; an acceleration-sensing device for sensing an acceleration of the child safety seat; and a control device (19), which is configured in such a way that the airbag (15) is deployed on the basis of an acceleration sensed by the acceleration-sensing device.SELECTED DRAWING: Figure 1

Description

Description

[0001] The present invention relates to a child safety seat for attachment to an automotive seat according to claim 1.

[0002] Child safety seats for attachment to automotive seats are generally known in the relevant art. Such child safety seats can have an impact shield and / or an internal belt system. Further, such child safety seats can also be designed to be connectable to the vehicle's belt system. A child safety seat typically comprises at least one seat shell, or a seating area and a backrest. Such child safety seats can also include a headrest, or support legs, or other components. In principle, the child safety seat according to the present invention can also have these structures.

[0003] Also, within the scope of the present invention, it should be noted that the term "child safety seat" is understood to be a general term for "classic" child safety seats and infant child seats. Within this scope, (unless otherwise indicated in a specific context) "child safety seat" is an abbreviation for "child safety seat or infant child seat", and within the scope of the present invention, a structure intended for a child safety seat generally can also be applied to an infant child seat, and vice versa (unless otherwise specified). The same applies to the term "child", which is also understood to be a general term for children, infants, and toddlers. A product referred to as an "infant child seat" often comprises only a one-piece shell (for accommodating an infant or child), and may also include its own belt system, optionally a headrest, and optionally further components. Instead of a (structurally separate) backrest, such an "infant child seat" has a backrest portion, which is connected to a "seat area" capable of accommodating the rear four-quarters of the child therein. In contrast, a larger child safety seat for children has a backrest portion that is structurally separate from the seat area and can change its inclination angle relative to the seat area as required. The structural separation may be formed, for example, by bending or similar processes.

[0004] Generally, a child is known to be fixed within a child safety seat by a vehicle's three-point safety belt or by a belt provided on the child safety seat itself (e.g., a five-point harness, a chest strap, etc.). In these situations, the belt may pass over the shoulders of the child sitting on the seat, towards the opposite side of the pelvis. Or, two belts may be provided, each passing over the shoulders.

[0005] All of these known systems have one thing in common. When a vehicle is involved in a collision, a child in the seat initially continues to move forward due to the action of mass inertia and is then suddenly restrained by the belt and / or impact shield. However, the child's head continues to move forward, which may cause a pitching motion, for example, in the cervical region, which may lead to dangerous injuries. Also, the problem that the child falls into the seat area ( "dives in"), for example, slides out from under the impact shield, also frequently occurs.

[0006] Airbag solutions for child safety seats are also generally known in the related art. These are aimed at, for example, guaranteeing the corresponding protection of the child in the event of a frontal collision. However, the known solutions are still considered to require improvement.

[0007] It should be noted at this point that all of the structures described above with respect to the related art can be (individually or in combination) the structure of the child safety seat according to the present invention.

[0008] The object of the present invention is to propose a child safety seat for attachment to a motor vehicle, which safely and easily restrains a child so as to reduce the risk of serious injury during rapid acceleration (and deceleration, which, according to the usage in the field of physics, means both an increase and a decrease in speed), especially in the event of a collision.

[0009] This object is solved by a child safety seat for attachment to a motor vehicle, which in particular comprises a seat area, a backrest, an impact shield with an integrated airbag and / or an airbag within the seat area (optionally without an impact shield), an acceleration detection device for detecting the acceleration of the child safety seat, and a control device configured to cause the deployment of the airbag based on the acceleration detected by the acceleration detection device.

[0010] The first main aspect is that the child safety seat has an integrated acceleration detection device therein, as a result of which the child safety seat can deploy the airbag automatically (e.g., without information from the vehicle electronic system). As a result, safety is improved.

[0011] The acceleration detection device is particularly understood to mean a device that responds (and / or causes such types of output) in such a way that when a predetermined acceleration limit value is exceeded, the control device can cause the deployment of the airbag. The response or output may (but is not essential) include an electrical / electronic signal. The response or output may optionally be a mechanical response of the acceleration detection device to the exceeding of a predetermined acceleration limit value (e.g., a locking mechanism is released), and as a result, this mechanical response (e.g., the release of the locking mechanism and any accompanying movement of the acceleration detection device or a part thereof) causes the control device to deploy the airbag. In particular, in such types of solutions, the acceleration detection device and the control device may optionally be designed as a single assembly (or even as a single component). However, the acceleration detection device and the control device are preferably assigned to two different parts or two different assemblies (which may or may not be electrically / electronically connected to each other via cables and / or wirelessly). The distance between the acceleration detection device and the control device is preferably at least 10 cm. The control device may be arranged (or integrated therein), for example, at least partially on or near the airbag. The acceleration detection device may be arranged at a position further away from the airbag (e.g., within the seat fixture). In a particular embodiment, the acceleration detection device comprises an acceleration sensor that can detect the exceeding of at least one predetermined acceleration limit value and transmit a corresponding output (in particular, to the control device).

[0012] The above object is also solved by a child safety seat for attachment to a motor vehicle of the above type, preferably comprising a seat part area, a backrest part, and an integrated distance increasing device, in particular an integrated airbag, a shock shield having a first (in particular, upper or front) part and a second (in particular, lower or rear) part, wherein the first part is connected to the body of the child safety seat, the second part is connected to the first part, and the second part is arranged to move away from the first part and towards the pelvis of a child sitting on the child safety seat (generally, downward and / or rearward) when the distance increasing device, in particular the airbag, is actuated. The child safety seat preferably comprises an acceleration detection device (in particular, of the above type) for detecting the acceleration of the child safety seat and a control device (in particular, of the above type) configured to actuate the distance increasing device, in particular the airbag, based on the acceleration detected by the thus configured acceleration detection device. The first and / or second part may in particular be of a dimensionally stable structure. When the airbag is not deployed, the first and / or second part may each constitute at least 10%, preferably at least 20% of the total volume of the shock shield. The volume of the first and / or second part may be at least 200 cm3, preferably 500 cm3. The first and / or second part may be provided with padding. The first and / or second part may be pivotable towards each other (the pivoting and / or deployment being in particular caused by the actuation of the distance increasing device, in particular the airbag). The volume of the distance increasing device, in particular the airbag, in the actuated state may be smaller than, or not smaller than, the volume of the first and second parts in the non-deployed state. Thus, the airbag does not have to be extremely bulky such that it can cushion itself, but rather functions as a distance increasing device (in particular, an airbag) that expands (optionally deploys) the shock shield and accordingly improves its protective function. This does not exclude the possibility that the airbag may have a damping function (preferably, as intended).

[0013] Accordingly, according to a second main aspect of the present invention, an impact shield is proposed which, when a predetermined acceleration is exceeded (for example, during a collision), increases in external dimensions (envelope), in particular the height in such situations. The impact shield (or part thereof) should move upwards and / or downwards. By moving upwards, in the case of a frontal collision, the head of a child accelerated forwards is particularly effectively protected. By moving downwards, the legs and optionally the pelvis of the child are particularly pressed, and as a result, the child can be prevented from "diving" under the impact shield (similarly, this risk can be eliminated or reduced).

[0014] In a particular embodiment, when viewed from the side, the impact shield is substantially U-shaped, the U-shape preferably being open forwards (towards the direction away from the backrest), and / or an airbag being arranged inside the U-legs (this applies in particular in the deployed or actuated state and optionally also in the non-deployed or non-actuated state). Alternatively or additionally, a belt guide may be provided inside the U-shape so that a belt attached to the seat or a vehicle belt can be received and guided there. The first (upper) part of the impact shield should preferably be fixed to the child safety seat and / or held by a belt installed in the vehicle so that the second part can move towards the legs and pelvis of the child. The belt guide may specifically be mounted on the front side and / or the lower side of the first (upper) part.

[0015] The arrangement of a distance-increasing device, in particular an airbag (preferably of the type described above), inside or in the vicinity of the belt guide of the impact shield should itself be regarded as an inventive concept.

[0016] The above object is - the seat area, - the backrest, An impact shield, and an impact shield position adjustment device for adjusting the position of the impact shield, and / or a belt system comprising a belt system belt tensioning device, wherein the belt system can be tightened by the belt system belt tensioning device (or belt tightening device), and / or a child safety seat fixing system comprising a child safety seat fixture position adjustment device, and an acceleration detection device for detecting the acceleration of the child safety seat, and, in response to a predetermined acceleration, particularly the acceleration detected by an acceleration detection device integrated with the child safety seat, causing position adjustment by the impact shield position adjustment device, and / or tensioning by the belt system belt tensioning device (or belt tightening device), and / or position adjustment of the child safety seat fixture relative to other components of the child safety seat, a control device configured to perform the above, particularly a child safety seat for attachment to a motor vehicle of the above type, is also solved.

[0017] The concept of position adjustment is particularly understood to refer to the operation of moving each component (e.g., the impact shield and / or the child safety seat fixture) closer to other components (or the body) of the child safety seat. In the case of the impact shield, this particularly means that the position adjustment causes the impact shield to move further towards the child and the child's support surface (downward and rearward) during use.

[0018] (Particularly combinable with the first and second main aspects or main concepts) The third main concept of the present invention is that, when a predetermined acceleration value is exceeded, the impact shield and / or the belt system (a part of the child safety seat), which are safety-critical components, are positioned and pulled (tightened) so as to securely hold the child in a predetermined position. For this purpose, an integrated (particularly of the above type) acceleration detection device is provided that causes an operation corresponding particularly independently of an external signal (e.g., from an automotive acceleration sensor).

[0019] In a preferred embodiment, the acceleration detection device includes an acceleration sensor.

[0020] Preferably, the control device operates or functions in response to an acceleration threshold being exceeded, which is at least 2g, more preferably at least 4g, even more preferably at least 6g (depending on the situation, in particular, for each airbag, distance increasing device, and / or impact shield position adjusting device, and / or belt system belt tensioning device), and the acceleration threshold is additionally or alternatively less than 25g, preferably less than 20g, even more preferably less than 15g. The letter g represents the acceleration due to gravity.

[0021] Each airbag may be pressed downward and / or rearward during activation, in particular towards the pelvis / lumbar region and / or legs of a child sitting in a child safety seat. However, alternatively (or additionally), each airbag may be pressed upward and / or rearward (for example, when arranged in the upper or seat region of the impact shield). When the airbag is pressed downward or rearward and downward (diagonally rearward), this is particularly effective in preventing the child from sliding out from under the impact shield (similarly, reducing this risk).

[0022] The acceleration detection device, in particular its acceleration sensor, may be arranged in a part of the child safety seat located near the vehicle or vehicle body when the child safety seat is installed. In particular, it is particularly preferred to be arranged in or on a fixing device for fixing the child safety seat to the vehicle or vehicle body (for example, IsoFix attachment) or for fixing a seat element to the child safety seat base.

[0023] When the acceleration detection device, in particular its acceleration sensor, is arranged near the vehicle or vehicle body, abnormal acceleration (or deceleration) such as that occurring in a frontal collision can be detected particularly early. This improves safety.

[0024] If at least a part of the airbag's operation is directed rearward (e.g., diagonally rearward), the child is not only subject to frictional and compressive forces (such as would occur if the airbag operates only downward from the impact shield or upward from the seat surface), but is also actively pressed backward (in the case of forward acceleration) and held in place.

[0025] The airbag may contain a corresponding (inflatable) gas, such as a compressed gas.

[0026] The control device and the acceleration detection device, particularly its acceleration sensor, may be interconnected by cable or wirelessly. Cable connection is preferred.

[0027] The impact shield may be held in a predetermined position on the body of the child safety seat by the vehicle belt system or by an additional (especially integrated into the child safety seat) retaining device, such as a tether strap. Optionally, preferably, a cable for transmitting information from the acceleration detection device, particularly the acceleration sensor, to the control device may be provided in the additional retaining device.

[0028] The child safety seat may particularly have a (self - contained) power supply for the acceleration detection device (its acceleration sensor) and / or the control device. This self - contained power supply may be, for example, a battery (e.g., a 9 - volt battery) and / or a rechargeable battery.

[0029] The child safety seat may further comprise a force limiter that limits the force applied to the child by a restraint device, in particular a belt system. The threshold value of the force limiter preferably exceeds the threshold value of a position adjustment device, in particular a belt tensioner of the belt system. This is useful for improving safety in order to prevent the force limiter from taking effect too early (compared to the activation of the effect of the position adjustment device). As long as the application of the effect of the force limiter and the application of the effect of the position adjustment device depend on an acceleration threshold value, in particular the threshold value of the force limiter is at least 0.5 g, preferably at least 1 g, and even more preferably at least 2 g greater than the threshold value of the position adjustment device or the belt tensioner of the belt system. Alternatively or additionally, the force limiter may be blocked until the position adjustment device and / or the belt system belt tensioner is actuated.

[0030] The above-mentioned (each) position adjustment device, or the above-mentioned (each) belt tensioner (belt tightening device) may be additionally provided with respect to a distance increasing device or a control device of an airbag, or may cooperate with a control device that may be at least partially constituted thereby. In addition, the above-mentioned (each) position adjustment device, or the above-mentioned (each) belt tensioner (belt tightening device) may cooperate with an acceleration detection device, an acceleration sensor that may be additionally provided with respect to a distance increasing device or a control device of an airbag, or may be at least partially constituted thereby.

[0031] The belt tensioner may be configured to apply tension to one or two lap belts.

[0032] The lap belt may be the lower part of a connected lap-shoulder belt, and they may be structurally separated from the shoulder strap (for example, by an optional coupling element that may optionally have a tongue).

[0033] The control device and / or the acceleration detection device or the acceleration sensor may be integrated into the belt tensioner, or they may be provided separately.

[0034] The legs and pelvis of the child may in particular be held down by the belt tensioning device.

[0035] Optionally, instead of directly pulling the lap belt, an adjustable strap may be pulled to optionally (in particular) further indirectly tighten the shoulder strap. The adjustable strap is preferably an extension of the (already joined) shoulder strap and is optionally connected thereto via a coupling element (for example, at least three or precisely three slots).

[0036] In certain embodiments, the corresponding tension may be applied (directly) to both the adjustable strap and the lap belt.

[0037] To exert this tension, the belt or belt portion corresponding to the embodiment may be connected to the belt tensioning device or may pass through a (preferably triangular) small hole that can be connected.

[0038] In one embodiment, tension may be applied (directly) to the adjustable strap (and thus mainly indirectly to the shoulder strap) to tighten the corresponding belt. Alternatively or additionally, tension may be applied to the seat fixture, which has the effect of bringing the child safety seat closer to (or moving closer to) the backrest of the vehicle seat (when a predetermined acceleration threshold is exceeded).

[0039] In certain embodiments, the tensioning device may act on (only) the seat fixture, or may act on the seat fixture, the adjustable strap and the lap belt, or may act on the seat fixture and the lap belt. When a certain acceleration is detected, each element is preferably pulled or pushed in the corresponding direction (with respect to other components of the child safety seat or the body of the child safety seat).

[0040] Each control device may be an electronic control device.

[0041] Generally, each impact shield may have a dimensionally stable structure (especially when the impact shield is not prevented from being deformed by, for example, an airbag during a collision, but no external force other than gravity acts on it). The volume of the impact shield may be at least 1000 cm 3 , preferably at least 2000 cm 3 . For three axes orthogonal to each other, the maximum expansion of the impact shield may be at least 5 cm, preferably at least 10 cm (respectively). The impact shield may include a shock absorber.

[0042] The child safety seat preferably has a side impact protection structure. The side impact protection structure preferably includes at least one (more preferably at least two, optionally at least one on each side of the child safety seat), preferably arranged separately (especially facing outward, preferably arranged as an element that is separate from the seat body and has no particular function of supporting the child), and / or adjustable, and / or arranged laterally to the side impact protection element. At least one side impact protection structure element may be arranged on the backrest. Alternatively or additionally, at least one side impact protection element may be arranged at the height of the headrest. Alternatively or additionally, at least one side impact protection structure element may be arranged on the leg portion. Each side impact protection element is preferably dimensionally stable or rigid. Each side impact protection element is preferably configured to be able to take a functional position and a neutral position (improving side impact protection). Each side impact protection element preferably protrudes further outward (laterally) than the neutral position in the functional position. The overall width of the child safety seat may be greater when the side impact protection element is in the functional position than when it is in the neutral position. The switching between the functional position and the neutral position can be achieved translationally (in a sliding manner, for example, telescopically) and / or rotationally (in a folding manner, especially by the insertion and extraction of the outer surface of the child safety seat).

[0043] The above object is also solved by an automobile equipped with the above type of child safety seat.

[0044] The above object is also solved by a method of deploying an airbag of a child safety seat for attachment to an automobile seat of the above type, the automobile seat having a seat region, a backrest portion, and an impact shield integrated with an airbag, wherein an acceleration detection device integrated with the child safety seat detects the acceleration of the child safety seat, and a control device causes the deployment of the airbag based on the acceleration detected by the acceleration detection device.

[0045] The above object is further solved by a method of operating an impact shield of a child safety seat for attachment to an automobile seat of the above type, the automobile seat having a seat region, a backrest portion, and an integrated distance increasing device, particularly an integrated airbag, and an impact shield having a first (upper or front) portion and a second (lower or rear) portion, wherein the first portion is connected to the body of the child safety seat, and the second portion is connected to the first portion, and the distance increasing device, particularly the airbag, operates such that the second portion moves away from the first portion and towards the pelvis of a child sitting on the child safety seat. This method preferably further includes detecting the acceleration of the child safety seat and operating the distance increasing device, particularly the airbag, in response to the detected acceleration.

[0046] The above object is further solved by a method for operating an impact shield and / or a belt system of a child safety seat for attachment to an automobile seat having a seat region and a backrest portion, particularly of the above type, wherein the impact shield is positionally adjusted, and / or the belt system is tensioned by a belt system belt tensioner, and / or a child safety seat fixture is positionally adjusted, and when the acceleration of the child safety seat is detected, particularly when the acceleration is detected by an acceleration detection device integrated with the child safety seat, the positional adjustment of the impact shield, and / or the pulling at a predetermined acceleration by the belt system belt tensioner, and / or the positional adjustment of the child safety seat fixture with respect to other components of the child safety seat are performed.

[0047] The features of the preferred method will become apparent from the description of the child safety seat, particularly the functional features described herein.

[0048] Further variations of the present invention are described in the dependent claims.

Brief Description of the Drawings

[0049] In the following text, the present invention will be described using its exemplary embodiments and explained in more detail with reference to the drawings. In the drawings:

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

[0050] In the following description, the same reference numerals are used for the same parts and parts having equivalent functions.

[0051] Figure 1 shows a child safety seat having a backrest portion 10 and a seat portion area 11. The child safety seat further includes a base 12 and support legs 13 as optional elements.

[0052] An airbag 15 is provided within (inside the upper part or adjacent to the upper surface of) the impact shield 14. In Figure 1, the airbag 15 is in a non-activated state. An acceleration sensor 17 (details not shown) is disposed within the seat fixture 16. The acceleration sensor 17 is connected via a cable 18 to a control device 19 (details not shown), and the control device activates the airbag 15 (when a predetermined acceleration threshold is exceeded).

[0053] Figure 2 shows the activated state. As can be identified from this figure, the airbag moves upward and rearward, and as a result (in the case of a frontal collision), the child's head and chest are protected. The cable 18 is not shown in Figure 2 for simplicity.

[0054] The embodiments according to Figures 3 and 4 are basically the same as the embodiments of Figures 1 and 2. In this case, the airbag 15a is attached to the bottom side instead of the top side. The airbag 15a attached to the bottom is attached within the lower part of the impact shield 14 and is in particular in contact with the lower surface of the impact shield 14. When deployed (see Figure 4), the airbag expands towards the child's legs and pelvis / lumbar region. Thereby, not only the frictional or compressive action between the seat portion area and the impact shield, but also the pushing action of the airbag rearward (towards the child's pelvis) effectively suppresses the "slipping in" where the child is firmly held in place (slides down under the impact shield).

[0055] The embodiments according to FIGS. 5 and 6 are (substantially) the same as the embodiments of FIGS. 1 and 2, but have the following differences. In this case, the airbag is not mounted within the impact shield 14 (however, an airbag similar to the airbag of FIGS. 1 and / or 3 may be provided). However, an airbag 15b is provided within the seat region 11 (and, at least in the non-activated state, only inside the front half of the seat region 11). The airbag 15b is adjacent to the upper surface (front region) of the seat region 11. When deployed (see FIG. 6), the airbag presses or actuates obliquely rearward. This has the effect of suppressing (or reducing the risk of) a child slipping under the impact shield. The child is also restrained here by the corresponding counter pressure of the airbag due to the rearward actuation, which is not only a pressing action but also due to the corresponding counter pressure directed rearward. A control device (not shown in detail in FIGS. 5 and 6) for deploying the airbag can be arranged, for example, in the seat region 11 beside the airbag and can be connected to the acceleration sensor 17 by a corresponding cable (similar to FIGS. 1 to 4). In all embodiments, in all cases, a wireless connection may be used instead of a cable connection.

[0056] The embodiments according to FIGS. 7 and 8 are substantially the same as the embodiments of FIGS. 1 and 2, but have the following differences. In the embodiments of FIGS. 7 and 8, the airbags 15, 15a are not provided on either the top side or the bottom side (although they may be provided separately or in combination), and instead, an airbag 15c is arranged between a first portion 20 and a second portion 21. The first portion 20 is the upper portion and the second portion 21 is the lower portion. The two portions 20, 21 may be open towards each other. When the airbag is actuated (see FIG. 8), the first portion 20 and the second portion 21 are forced apart. As also shown in FIG. 8, the side cross-section of the impact shield 14 is U-shaped (at least when deployed). The (deployed) airbag is arranged inside the legs of the U. Further, a belt guide 22 for the tether 23 may pass through the inside of the U.

[0057] FIG. 9 shows a further embodiment corresponding to the combination of the embodiments according to FIGS. 1 and 3. Accordingly, in this embodiment, both the upper airbag 15 and the lower airbag 15a are provided. For the effects of the airbags 15, 15a, refer to the descriptions of FIGS. 1 to 4.

[0058] FIG. 10 is a schematic perspective view of a belt tensioning device according to the present invention. The belt tensioning device 24 cooperates with a control device 25 (which may be additionally provided with respect to the above-described control device 19 or at least partially constituted thereby) and an acceleration detection device and acceleration sensor 26 (which may be additionally provided with respect to the above-described acceleration detection device and acceleration sensor or at least partially constituted thereby). When a predetermined acceleration limit value is exceeded, the control device 25 operates the belt tensioning device 24 to apply tension to the lap belt 27.

[0059] The control device 25 and / or the acceleration detection device and acceleration sensor 26 may be integrated with the belt tensioning device or may be provided separately. The lap belt may be the lower part of the connected lap-shoulder belt or may be structurally separated from the shoulder belt (e.g., by any rigid coupling element that may include a tongue).

[0060] As shown in FIG. 10, in particular, the legs and pelvis of a child may be pressed down (e.g., in the event of an accident).

[0061] The embodiment of FIG. 11 is substantially the same as the embodiment according to FIG. 10. In this case, however, no (direct) tension is applied to the lap belt 27. Instead, tension is applied to an adjustable strap 28, and as a result, the shoulder strap 29 is (primarily) indirectly (further) tightened. The adjustable strap 28 is preferably an extension of the shoulder strap 29 (especially the aforementioned one) and is optionally connected thereto via a coupling element (e.g., having at least three or exactly three slots).

[0062] The embodiment according to FIG. 12 is a combination of the embodiments of FIGS. 10 and 11, insofar as it applies (directly) a tension corresponding to both the adjustable strap 28 and the lap belt 27.

[0063] (In the embodiments according to FIGS. 10 to 13) The corresponding belt or belt portion is connected to, or can be connected to, the belt tensioning device 24 so as to be tensioned, and passes through a (here preferably triangular) small hole 29.

[0064] FIG. 13 shows a solution having the effect that a (direct) tension is applied to the adjustable strap (as in FIG. 11) and thus indirectly mainly also to the shoulder strap 29, and the corresponding belt is tightened. The tension is also applied to the seat fixture (when a predetermined acceleration threshold is exceeded), which has the effect of holding the child safety seat closer to (or pressing it closer to) the backrest of the vehicle seat.

[0065] Alternatively, the tensioning device can act on the seat fixture 16 only, or on the seat fixture 16 and the adjustable strap and the lap belt 27 only, or on the seat fixture 16 and the lap belt 27 only. When a certain acceleration is detected, each element is pulled (or pushed) in the direction of the arrow shown in FIGS. 10 to 13 (with respect to other components of the child safety seat or the body of the child safety seat).

[0066] Each control device may be an electric control device.

[0067] It should be noted at this point that all parts described in the foregoing text, in particular the details shown in the drawings, are claimed to be essential for the present invention, either independently or in any combination. Such modifications will be well known to those skilled in the art. The invention described in the original claims of the present application is appended below. [1] A child safety seat for attachment to an automobile seat, comprising a seat portion area (11), a backrest portion (10), and an impact shield (14), wherein the impact shield includes an integrated airbag (15, 15a, 15c), and / or an airbag (15b) is provided within the seat portion area, and further comprising an acceleration detection device for detecting the acceleration of the child safety seat, and a control device (19) configured to deploy the airbag (15, 15a - 15c) based on the acceleration detected by the acceleration detection device. The child safety seat. [2] Comprising a seat portion area (11), a backrest portion (10), and an impact shield (14) having an integrated distance increasing device, in particular an integrated airbag (15a), a first portion (20) and a second portion (21), wherein the second portion is connected to the first portion and is arranged to move away from the first portion towards the pelvis and / or legs of a child sitting on the child safety seat when the distance increasing device, in particular the airbag (15c), is actuated, and the impact shield is preferably designed to be held or fixed in the area of the first portion on the child safety seat. The child safety seat preferably further comprises an acceleration detection device for detecting the acceleration of the child safety seat, and a control device (19) configured to actuate the distance increasing device, in particular the airbag (15c), based on the acceleration detected by the acceleration detection device. In particular, the child safety seat for attachment to an automobile seat according to [1]. [3] - A seat portion area (11), - A backrest portion (10), - An impact shield (14) and an impact shield position adjustment device for adjusting the position of the impact shield, and / or A belt system comprising a belt system belt tensioning device, wherein the belt system can be tightened by the belt system belt tensioning device, and / or A child safety seat fixing system comprising a child safety seat fixture position adjustment device, and - An acceleration detection device for detecting the acceleration of the child safety seat, and in response to a predetermined acceleration, particularly the acceleration detected by the acceleration detection device integrated with the child safety seat, position adjustment by the impact shield position adjustment device, and / or tension by the belt system belt tensioning device, and / or position adjustment of the child safety seat fixture with respect to other components of the child safety seat, A child safety seat comprising a control device configured to perform the above, particularly for attachment to an automotive seat of [1] or [2]. [4] The child safety seat according to any one of [1] to [3], characterized in that the acceleration detection device comprises an acceleration sensor (17). [5] Correspondingly, when the acceleration threshold of at least 2g, preferably at least 4g, more preferably at least 6g, and / or 25g or less, preferably 20g or less, more preferably 15g or less is exceeded, the control device (19) operates or functions. The child safety seat according to any one of [1] to [4]. [6] The airbag (15a), when actuated, is pressed downward and / or rearward, particularly toward the waist and / or legs of the child sitting on the child safety seat. The child safety seat according to any one of [1] to [5]. [7] Particularly, for fixing the child safety seat to the vehicle and the chassis, or for fixing a seat element to the child safety seat base (12), when the child safety seat is preferably attached to a fixing device (16), the acceleration detection device, particularly the acceleration sensor (17), is disposed at a portion of the child safety seat located near the vehicle or the vehicle body. The child safety seat according to any one of [1] to [6]. [8] The control device (19) and the acceleration detection device, particularly the acceleration sensor (17), are interconnected by a cable (18) or wirelessly. The child safety seat according to any one of [1] to [7]. [9] The impact shield (14) is held on the body of the child safety seat by a vehicle belt system or by an additional retaining device, in particular one integrated in the child safety seat, for example by a tether, and the cable is optionally, preferably provided in the additional retaining device for transmitting information from the acceleration detection device, in particular the acceleration sensor, to the control device, a child safety seat according to any one of [1] to [8].

[10] A force limiter is provided for limiting the force applied to the child by a restraint device, in particular a belt, and the threshold value of the force limiter is preferably greater than the threshold value of the position adjustment device of the belt system belt tensioner, in particular, a child safety seat according to any one of [1] to [9].

[11] A side impact protection structure, in particular comprising at least one side impact protection element, preferably arranged separately and / or adjustable and / or arranged laterally, a child safety seat according to any one of [1] to

[10] .

[12] A motor vehicle equipped with a child safety seat according to any one of [1] to

[11] .

[13] A method for deploying an airbag of a child safety seat for attachment to a vehicle seat, in particular according to any one of claims 1 to 11, comprising a seat region (11), a backrest (10), and an impact shield (14) with an integrated airbag (15, 15a, 15c), wherein an acceleration detection device integrated in the child safety seat detects the acceleration of the child safety seat, and a control device (19) causes the deployment of the airbag (15, 15a - 15c) based on the acceleration detected by the acceleration detection device.

[14] A method for actuating an impact shield (14) of a child safety seat for attachment to a vehicle seat, in particular according to any one of [1] to

[11] , comprising a seat region (11), a backrest (10), and an impact shield (14) having an integrated distance increasing device, in particular an integrated airbag (15a), a first part (20) and a second part (21). The second part is connected to the first part, and the distance increasing device, in particular the airbag (15c), is actuated such that the second part moves away from the first part towards the pelvis and / or legs of a child sitting in the child safety seat. The method preferably further comprises detecting the acceleration of the child safety seat and actuating the distance increasing device, in particular the airbag, based on the detected acceleration. The method.

[15] A method for actuating an impact shield and / or a belt system of a child safety seat for attachment to an automotive seat, in particular an automotive seat according to any one of [1] to

[11] , comprising a seat region (11) and a backrest (10), in particular a method according to

[13] or

[14] , wherein the impact shield (14) is positionally adjusted and / or the belt system is tensioned by a belt system belt tensioner and / or the child safety seat fixing system is positionally adjusted, wherein the position adjustment of the impact shield and / or the pulling at a predetermined acceleration by the belt system belt tensioner and / or the position adjustment of the child safety seat fixture relative to other components of the child safety seat is effected when the acceleration of the child safety seat is detected, in particular by an acceleration detection device integrated in the child safety seat. The method.

Explanation of Symbols

[0068] 10 Backrest 11 Seat Region 12 Base 13 Support Leg 14 Impact Shield 15 Airbag 15a Airbag 15b Airbag 15c Airbag 16 Seat Fixture 17 Acceleration Sensor 18 Cable 19 Control Device 20 First Part 21 Second Part 22 Belt Guide 23 Tether 24 Belt Tensioning Device 25 Control Device 26 Acceleration Sensor 27 Lap Belt 28 Adjustable Strap 29 Shoulder Strap 30 Small Hole

Claims

1. A child safety seat for attachment to a vehicle seat, comprising a seat portion area (11), a backrest (10), and an impact shield (14), the impact shield comprising an integrated airbag (15, 15a, 15c), an acceleration detection device for detecting the acceleration of the child safety seat, and a control device (19) configured to deploy the airbag (15, 15a - 15c) based on the acceleration detected by the acceleration detection device, the impact shield (14) comprising a first portion (20) and a second portion (21), the second portion (21) being connected to the first portion (20) and, upon actuation of the airbag (15c), moving away from the first portion (20) and towards the pelvis and / or legs of a child sitting in the child safety seat. A child safety seat

2. The child safety seat according to claim 1, wherein the impact shield is designed to be held or fixed in the area of the first portion on the child safety seat.

3. A child safety seat for attachment to a vehicle seat, comprising a seat portion area (11), a backrest (10), an acceleration detection device for detecting the acceleration of the child safety seat, a control device (19), and - an impact shield (14) and an impact shield position adjustment device for adjusting the position of the impact shield, wherein the control device (19) is configured to cause the impact shield position adjustment device to perform the position adjustment of the impact shield in response to a predetermined acceleration detection by the acceleration detection device, the impact shield being held in a predetermined position of the body of the child safety seat by a vehicle belt system or a tether strap, and / or - A child safety seat fixing system provided with a child safety seat fixture position adjusting device for adjusting the position of a child safety seat fixing system with respect to other components of the child safety seat, wherein the control device (19) is configured to cause the position adjustment of the child safety seat fixing system with respect to other components of the child safety seat to be performed by the child safety seat fixture position adjusting device in response to a predetermined acceleration detection by the acceleration detection device. A child safety seat for attachment to an automobile seat.

4. The child safety seat according to any one of claims 1 to 3, wherein the acceleration detection device includes an acceleration sensor (17).

5. At least 2 × 9.80665 m / s ２ and / or 25 × 9.80665 m / s ２ The child safety seat according to any one of claims 1 to 3, wherein the control device (19) operates or acts in response to exceeding the following acceleration threshold values.

6. The child safety seat according to claim 1 or 2, wherein the airbag (15a) is pressed against the buttocks and / or legs of a child sitting on the child safety seat downwardly and / or rearwardly when activated.

7. The child safety seat according to any one of claims 1 to 3, wherein the acceleration detection device is disposed at a portion of the child safety seat located near a vehicle or a vehicle body when the child safety seat is attached.

8. The child safety seat according to claim 7, wherein the acceleration detection device is disposed in a fixing device (16) for fixing the child safety seat to the vehicle or for fixing a seat element of the child safety seat to a child safety seat base (12) of the child safety seat. Claim 9. The child safety seat according to any one of claims 1 to 3, wherein the control device (19) and the acceleration detection device are connected to each other by a cable (18) or wirelessly.

10. The child safety seat according to claim 1 or 2, wherein the impact shield (14) is held on the main body of the child safety seat by a vehicle belt system or by an additional holding device.

11. The child safety seat according to claim 10, wherein the additional holding device is integrated into the child safety seat.

12. The child safety seat according to claim 10, wherein the cable is provided in the additional holding device for transmitting information. Claim 13. The child safety seat according to any one of claims 1 to 3, having a side impact protection structure including at least one side impact protection element that is separately arranged, and / or adjustable, and / or arranged laterally.

14. An automobile equipped with the child safety seat according to any one of claims 1 to 13.

15. A method for deploying an airbag of a child safety seat for attachment to an automobile seat having a seat portion area (11), a backrest portion (10), and an impact shield (14) having integrated airbags (15, 15a, 15c), wherein an acceleration detection device integrated into the child safety seat detects the acceleration of the child safety seat, and a control device (19) causes deployment of the airbag (15c) based on the acceleration detected by the acceleration detection device.

16. A method for deploying an airbag according to Claim 15, for operating the impact shield of the child safety seat, which is attached to the vehicle seat and includes a seat region (11), a backrest (10), and an integrated airbag (15, 15a, 15c), an impact shield (14) having a first part (20) and a second part (21), comprising: The second part (21) is connected to the first part (20), and the airbag (15c) operates to move the second part (21) away from the first part (20) towards the pelvis and / or legs of a child sitting on the child safety seat.

17. A method for operating an impact shield and / or a belt system and / or a fixture system of a child safety seat for attachment to a vehicle seat, the child safety seat including a seat region (11) and a backrest (10), an acceleration detection device for detecting the acceleration of the child safety seat, and a control device (19), comprising: The acceleration of the child safety seat is detected by the acceleration detection device, and the control device (19) responds to a predetermined acceleration detected by the acceleration detection device - the impact shield is adjusted in position by an impact shield position adjustment device, and the impact shield is held in a predetermined position of the body of the child safety seat by a vehicle belt system or a tether strap, and / or - the child safety seat fixture system is adjusted in position by a child safety seat fixture position adjustment device. A method configured as such.

18. A child safety seat for attachment to a vehicle seat including a seat region (11), a backrest (10), an acceleration detection device for detecting the acceleration of the child safety seat, a control device (19), and a belt system belt tensioning device for tensioning the belt system of the belt system, comprising: The control device (19) is configured to be performed by the belt system belt tensioning device in response to a predetermined acceleration detected by the acceleration detection device when the tension of the belt system is detected by the acceleration detection device. The acceleration detection device includes an acceleration sensor (17), and the control device (19) is at least 2 × 9.80665 m / s ２ and / or 25 × 9.80665 m / s ２ Actuates or operates when the following acceleration threshold is exceeded, the child safety seat is separately arranged, and / or adjustable, and / or further includes a side impact protection structure including at least one rigid side impact protection element arranged laterally.

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