Abstract:
A child safety seat or a baby carrier for mounting on a motor vehicle seat, particularly a motor vehicle side seat, has a seat tray and a side impact bar mounted thereon which can be moved from a rest position located in particular within a standard width to a functional position located in particular outside thereof, and vice versa, wherein the side impact bar is positioned in particular on both sides of the seat tray so as to transmit any lateral forces behind the back of a child sitting in the child safety seat and to direct said lateral forces into the seat tray. A side impact bar is used with and mounted on the child safety seat or baby carrier.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is the U.S. national phase of International Patent Application No. PCT/EP2013/062216 filed Jun. 13, 2013, which claims the benefit of German Application Nos. 20 2012 102 240.0 filed Jun. 18, 2012 and 20 2012 102 471.3 filed Jul. 4, 2012, the entire content of which is incorporated herein by reference. 
       BACKGROUND 
       [0002]    Disclosed herein is a child safety seat, or an infant car seat, to be mounted on a motor vehicle seat, as well as a side-collision protection that may be mounted to such a seat or such an infant car seat. 
         [0003]    In the scope of this disclosure, the term “child safety seat” is to be understood as a generic term for child safety seats and infant car seats. Therefore, the features provided for a child safety seat within the scope of this disclosure generally also apply to an infant car seat and vice versa, except where otherwise noted. The same applies to the term “child”, which is also to be understood as a generic term for children, as well as infants. 
         [0004]    Child safety seats and infant car seats, which may be mounted on a motor vehicle seat, have been known for quite some time. Such child safety seats or infant car seats serve as seats for infants, toddlers and children and offer them increased protection, especially in the event of an accident. The attachment of such child safety seats generally occurs by the use of the car&#39;s seatbelt system or via Isofix latches. In the event of an accident, this type of attachment secures the child safety seat to the motor vehicle seat, so that it will remain on the motor vehicle seat and isn&#39;t catapulted forward, especially in the event of a rear-end collision. However, these seats revealed problems in side collisions, as neither the belt&#39;s attachment, nor the Isofix latches sufficiently secured the child safety seat or the infant car seat from a sideway motion of the seat. However, this is important to the safety of the child in the child safety seat. Thus, in the past, existing child safety seats were provided with a side-collision protection, such as described in German patent document DE 20 2009 010 536 U1 or in U.S. patent publication U.S. 2009/0152913 A1. The apparatus disclosed therein is an energy absorbing element in the form of a strap or an air cushion and stretches across the child safety seats&#39; side. However, in the past, it has become clear that apparatuses, such as described in DE 20 2009 010 536 U1 or U.S. 2009/0152913 A1, are not capable of providing a maximum of safety for the child in the child safety seat, due to the fact, that according to the disclosure, an exchange of power directly impacts the child in the child safety seat, and the child safety seats cannot sufficiently absorb an impact and/or dissipate it. 
       SUMMARY 
       [0005]    Disclosed herein is a child safety seat for mounting to a motor vehicle seat which avoids the aforementioned disadvantage and offers improved side-collision protection, which reduces the kinetic impact on the child placed in the child safety seat. 
         [0006]    In particular, this problem is solved by a child safety seat, to be mounted on a motor vehicle seat, more specifically a motor vehicle seat with a seat shell featuring a side-wall protection, which may for example be situated at a standard width of 440 mm, according to the AGREEMENT CONCERNING THE ADOPTION OF UNIFORM TECHNICAL PRESCRIPTIONS FOR WHEELED VEHICLES, EQUIPMENT AND PARTS WHICH CAN BE FITTED AND/OR BE USED ON WHEELED VEHICLES AND THE CONDITIONS FOR RECIPROCAL RECOGNITION OF APPROVALS GRANTED ON THE BASIS OF THESE PRESCRIPTIONS, (Revision 2, including the amendments which entered into force on 16 Oct. 1995), E/ECE/324, E/ECE/TRANS/505, Rev. I/Add. I5/Rev.6 on 19 May 2009, Annex 17-Appendix 2, of the child safety seats, resting position to for example a functional state situated outside of the standard width and vice versa, wherein the side-collision protection is positioned in such a way, particularly on both sides of the seat shell, that possible side forces are led behind the back of the child placed in the child safety seat and into the seat shell. 
         [0007]    In this connection, an important aspect lies in the side-collision protection being attached to the seat shell in such a way, that a transfer or power or energy does not directly impact the child&#39;s body, but is instead lead away from the child&#39;s body and into the seat shell. In this way, the side-collision protection for one serves as a crush zone, and also as a force transfer device, which would in the event of a collision lead the possibly occurring side-powers away from the child&#39;s side linearly, instead of into the child&#39;s body linearly, and which exhibits damping features. Very advantageously, this helps reduce the energy impacting the child in a child safety seat, so that the child&#39;s risk of injury is significantly reduced in comparison to the presently known child safety seats. 
         [0008]    According to one embodiment disclosed herein, the side-collision protection comprises a side element, which, in its resting position, is in contact with the seat shell&#39;s side surface, particularly in a flat manner, or essentially inserted in or on, or retracted in or on the seat shell&#39;s side surface. In doing so, it can be ensured, that the child safety seat does not extend the provided side-collision protection further than a predetermined width, particularly the standard width, or the child safety seat&#39;s shell is curved in its resting position, and does not exceed a common width of a child safety seat in case of mounted or inserted side elements, which additionally improves the child safety seat&#39;s manageability. 
         [0009]    Furthermore, the side element may be fold-out, retractable, extendable or pull-out and push-in, for use in functional position, or alternatively to such an embodiment in which the child safety seat is essentially bonded, removable from a resting position of the side element and attachable to an according receptor for the side element on the child safety seat, i.e. particularly attachable to the child safety seat&#39;s seat shell and also particularly mountable. At this point, it shall be noted that according to the disclosure, it is just as well possible not only to attach the side element to the child safety seat, but also that a child safety seat may thus be upgraded, by mounting such a side-collision protection with a side element, which may for example be designed as a folding part, to a predefined position, wherein the side-collision protection may be bonded to the child safety seat&#39;s seat shell, e.g. by adhesive bonding, clinching, or screwing. For this purpose, the side-collision protection features a side element which is formed as a folding part that may be rotated around an axis for the purpose of transferring from a resting position into a functional position and vice versa, wherein the folding part comprises at least one stop retainer, of which a locking bar takes hold, so that the folding part is locked in its functional position, wherein the interlock may be released by an user via an unlock button or an unlock slider, which is in each case assigned to one or two or more locking bars. Such a side-collision protection advantageously comprises a base plate or an attachment plate, via which the side-collision protection is in contact with the child safety seat&#39;s seat shell, as well as bonded therewith. The above described system consisting of a folding part, axis, stop retainer and a locking bar is mounted on this base plate of the attachment plate. 
         [0010]    According to a further embodiment, the side-collision protection may also be constructively integrated into the child safety seat&#39;s shell, wherein for example, a special receptor for such a side-collision protection on the child safety seat&#39;s shell is preferable. 
         [0011]    A telescopic slider version of the side element is intended, which preferably features a mushroom or disc-shaped end section, which in its resting position is in direct, and essentially flat contact with the seat shell&#39;s side area, and in its functional position may be brought from a position in which it is pushed into the seat shell, into a position in which it is pulled or pushed out of the seat shell. In this functional position, the side element&#39;s mushroom or disc-shaped end section is then in contact with the motor vehicle contact surface, or with a neighbouring child safety seat or a neighbouring side element of another child safety seat. 
         [0012]    The side element&#39;s length and/or height are configurable. A configurable side element length is particularly advantageous for the use of the child safety seats with regard to using the invented items in different types of motor vehicles, due to the fact that different types of cars usually feature different distances with regard to the distance of the attachment apparatus for child safety seats from the motor vehicle door. Such a difference in distance may easily be remedied by a side element, which is adjustable with a regard to length. For the purpose of such a length configuration and preferably fixation at the desired length, a snap-in control (click lock) mechanism, snapping mechanism, folding mechanism, ratchet mechanism, telescope mechanism, thread or screwing mechanism or pulley mechanism is intended, wherein the aforementioned mechanisms may also be implemented in combination with each another, for example to first configure the side element&#39;s desired length, and subsequently, to lock it into the desired position, wherein the fixation may again be released from the functional position after using the child safety seat in order to bring the side element back into its resting position. Preferably a telescope mechanism is used in connection with this, by which, for example, a tubular designed side element is configured to the desired length. A subsequent fixation at the desired length may then, for example, be achieved by using a snapping mechanism. 
         [0013]    According to a further embodiment, the side element, as previously mentioned, may also be designed as a folding part. This folding part may either be brought from a closed resting position into an open functional position, or, according to another advantageous embodiment, may also assume an inclined position between the resting and the fully open functional position by opening the folding part at an angle of less than 90° relative to the child safety seat&#39;s shell. In this case, the folding part may, for example, feature a cogging, by which a multitude of stop retainers are defined, which are grabbed by corresponding locking bars—of which there may be one or two—during the process of locking in place and of the fixation of the folding part. Thereby the side element&#39;s lateral reach may be varied with regards to its length, wherein the folding part is securely locked in place and supported by the locking bar grabbing the stop retainer. Therefore, it is possible to compensate for the distance between the child safety seat and a lateral motor vehicle contact surface, which may differ in each type of vehicle. For this purpose, the folding part may feature a ratchet mechanism. 
         [0014]    Concerning this matter it shall be noted, that a contact of the side-collision protection side of the mushroom or disc-shaped end section is usually stabilized by a shut car door, wherein the side element, if the child safety seat is correctly positioned and mounted, e.g. by means of Isofix straps, may be extended or unfolded until the side element&#39;s mushroom or disc- shaped end section rests on another solid body part or a neighbouring child safety seat. In connection therewith, it is noted, that a combination of folding and sliding mechanism is also conceivable for the side element, e.g. by the side element being unfolded first, and then pulled out in a telescopic manner until a proper contact of the end section to a motor vehicle side area is ensured. With regards to this, it shall further be noted, that the end section, as previously mentioned, may be designed in a mushroom or disc-like shape. According to a further embodiment, it is, however, also possible to plug, screw or otherwise attach, preferably in a reversible manner, such an end section on the side element&#39;s end section. A mushroom or disc-shaped end section may also be realized by a suitable unfolding of the end section elements provided for that purpose. In connection with that, it is also intended to mount a connecting element to the side element&#39;s end section of a neighbouring child safety seat. Such a connecting element may, for example, be slid onto an appropriate side element&#39;s end section and locked in place by use of clamps, bolts or other known attachment mechanisms. A direct attachment of side elements, which are attached to two different child safety seats, is also possible. In doing so, optimal protection is ensured, not only for the child sitting closest to a motor vehicle contact surface, but also for a child that sits in a child safety seat or lays in an infant car seat which is attached to the rear middle seat of the motor vehicle. A child safety seat attached in such a manner, or an infant car seat attached in such a manner, respectively, may thus be supported against a motor vehicle contact surface via a neighbouring child safety seat or infant car seat, respectively. 
         [0015]    The side element may optionally be adjusted with regard to its height. Such a height adjustment may, for example, take place in a longitudinal slot of the seat shell, wherein means of fixation are provided for each height position, by which the side element is firmly and reliably held in place at the respective height. 
         [0016]    With regards to the side element&#39;s lateral reach it shall further be noted, that it essentially extends between a motor vehicle contact surface and the child safety seat. Thus an optimal transfer and redirection of energy is possible. 
         [0017]    The side element is posed above the seat area of the child safety seat. Thereby, a tipping over of the child safety seat attached at its base may be prevented effectively. Thereby a stabilization of the child safety seat in its normal functioning position is perfectly achievable. 
         [0018]    To ensure that possible side forces won&#39;t directly impact the child in the child safety seat in case of a side collision, as is the case with prior art child safety seats, but instead are rerouted around it and led into the seat shell, it is provided that the side element is arranged in a back section, particularly rearward of a back contact area of the child safety seat, or alternatively along the rear periphery of the child safety seats back section. In doing so, an optimal rerouting by the side-collision protection is possible, as the child is in not in reach of the side-collision effects, but instead there is the construction element of the child safety seat, namely the seat shell and therefore a direct energy transfer to the child is constructively avoided. 
         [0019]    According to a further embodiment, the child safety seat features side elements on each side of the seat shell, particularly usable and configurable independent of each other. These side elements may, for example, be in contact with a contact surface of the motor vehicle at different heights, whereby, for one, a puffer area is created, but also the rerouting of energy in the case of a side collision may be improved. In each case it is important, that the side-collision protection is extended, unfolded or pushed or pulled open toward a contact surface of the motor vehicle as far as possible, so that preferably a flat contact of the side element&#39;s mushroom or disc-like end section on the motor vehicle surface is ensured. In the case that several side elements are provided on one side of the child safety seat, these may essentially extend horizontally or at an angle to one another. 
         [0020]    The side elements provided on each side of the seat shell may, particularly within a seat shell construction, be bonded together. Such a construction, for one, increases the seat shell&#39;s rigidity, and, on the other, hand allows for an especially simple and precise mounting. Such an embodiment is best suited for telescopic extendible side elements. 
         [0021]    A side element may feature a receptor and/or contact and/or bonding and/or locking apparatus for grabbing or locking in a neighbouring side element, particularly a neighbouring child safety seat. If such an embodiment is desired, the side element&#39;s mushroom or disc-like end section may accordingly be provided with a receptor and/or contact and/or bonding and/or locking apparatus, so that two child safety seats with appropriate side-collision protection may be connected to each other via these, and essentially support each other as previously mentioned. 
         [0022]    As also previously mentioned, the side element may be designed as a folding part, which may be rotated around an axis to be brought from a resting position into the functional position and vice versa, wherein the folding part features at least one locking bar, onto which a stop retainer locks in its functional position, so that the folding part in a functional position is locked in place, wherein the fixation may be released by a user by using the unlock button or slider, of which one is preferably allocated per locking bar. 
         [0023]    The locking bar in its resting position is, particularly by a spring element, pre-loaded in such a way, that the locking bar is automatically brought into a predefined relaxed position during a change from the resting position into the functioning position, and thus moves with the stop retainer in locking and is thereby locked in place in the functional position. 
         [0024]    For this purpose, the locking bar in the resting position is held in place in its pre-loaded position by the folding part, particularly by side pieces of the folding part. When the locking bar is folded from its resting position into its functioning position, the locking bar is released by an accompanying unfolding of the side pieces of the folding part, which holds the locking bar(s) in its or their pre-loaded position, so that the locking bar slides past or falls out of the folding part&#39;s side pieces and comes in contact with, preferably in locking contact with the folding part&#39;s stop retainer. The stop retainer may also be designed from the folding part&#39;s side pieces or a nose formed from the folding piece, wherein the stop retainer may be designed either on the folding piece itself, or alternatively on one of the holding devices which are tightly bonded with the folding piece. Further embodiments result from the sub claims. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0025]    An execution example is described below, with the help of figures. 
           [0026]      FIG. 1  shows a schematic illustration of the child safety seat disclosed herein, facing forward and backwards; 
           [0027]      FIG. 2  shows a detailed view of a schematic illustration of the child safety seat&#39;s back section; 
           [0028]      FIG. 3  shows an embodiment of a side-collision protection in the functional position; 
           [0029]      FIG. 4  shows a detailed illustration of a schematic view of the side collision protection according to the embodiment of  FIG. 3 ; 
           [0030]      FIGS. 5 and 6  show a schematic illustration of a further embodiment of a side-collision protection on an infant car seat in the resting and functional position; 
           [0031]      FIGS. 7 and 8  show detailed schematic illustrations of the side-collision protection according to  FIGS. 5 and 6  comprising a one-button activator; 
           [0032]      FIG. 9  shows a side view in a schematic illustration of the one-button activated embodiment according to  FIG. 7 ; 
           [0033]      FIGS. 10-11  show a schematic, as well as an application illustration of a further embodiment of the side-collision protection, in a functional position; 
           [0034]      FIGS. 12-13  show a schematic illustration of a further embodiment of the side-collision protection, in functional and resting position; 
           [0035]      FIGS. 14-17  show a detailed schematic illustration of the function mechanism of the embodiment of a side-collision protection according to  FIGS. 12 and 13 ; and 
           [0036]      FIGS. 18-19  show further schematic views, schematic illustrations of an infant car seat according to an embodiment with a side collision protection that can be pushed into a side area of the infant car seat, each in its resting and functional position. 
       
    
    
     DETAILED DESCRIPTION 
       [0037]    The following description uses same reference numerals for like parts or parts fulfilling the same function. 
         [0038]      FIG. 1  shows, in two different illustrations, a child safety seat  10  disclosed herein, attached to a motor vehicle seat  100  in positions facing forward and backwards. The child safety seat  10  of this embodiment is designed in such a manner, that it can be rotated, wherein the child safety seat features a seat shell  20 , as well as a side element  30 , which are in their resting position according to the illustration. In this case, resting position refers to a pushed-in position of the side elements  30 . According to  FIG. 1  it is recognizable that the side element is located above the seat area  60  in the child seat&#39;s  10  back section  70 . 
         [0039]      FIG. 2  shows a rear view of back sections  70  of the child safety seat  10 , wherein each side of the back section  70  recognizably shows a side element  30  with respective end section  80 . End section  80  is designed in a disc-like shape and is in contact with the back section  70  of the child safety seat  10 . The side-collision protection is in the resting position, i.e. in contact with the back section  70  in pushed in position. 
         [0040]      FIG. 3  shows the back section  70  of  FIG. 2 , wherein the side element  30  is extended to the left in a telescopic manner and in contact with a motor vehicle contact area  40 , which is shown schematically. The side element  30  features a fixation mechanism  90 , in which a cam latch extends through an opening. Pushing the cam latch in allows the side element  30  to be pushed together in a telescopic manner and to be brought into a resting position. For this purpose the side element is pushed back into the back section  70  behind a back contact area of the child safety seat. 
         [0041]      FIG. 4  shows the side-collision protection according to FIG.  3 —viewed from the front, where in the mushroom or disc-like end section  80  of the side elements  30  is easy to recognize.  FIG. 4  also shows how the length of the side element  30  length is extendable in a telescopic manner and can be locked in place via a fixation mechanism  90 . 
         [0042]      FIGS. 5 and 6  each show in a schematic illustration, a child safety seat in the form of an infant car seat  10 . The child safety seat features a seat shell  20 , which has a side collision protection attached to each side of its rearward, behind a back section located area. The side-collision protection consists of a side element  30 , formed from a folding part  31 , which can be rotated around an axis  32 . The folding part  31  features two side pieces  36  as well as an end section  80 . In  FIG. 5 , a folding part  31 , in its resting position, essentially rests flat on the side area  35  of seat shell  20 , while in  FIG. 6 , the side element  30 , shown therein on the right, is present in an unfolded manner, wherein a folding part  31  essentially sticks out from seat shell  20  of the child safety seats  10 . A folding part  31  of the side-collision protection, as arranged on the left side of the child safety seats in  FIGS. 5 and 6  is in each case in its resting position, i.e. essentially resting flat on the side area  35  of the seat shell  20 . 
         [0043]    In  FIGS. 7 and 8 , the side element  30  from  FIG. 6  is shown in a detailed illustration, wherein the side collision protection solution shows a one-button solution, featuring the folding part  31  on one side only, i.e. featuring a stop retainer  33 , shown on the right side of  FIGS. 7 and 8 , which grabs onto a locking bar  34 .  FIG. 7  shows a schematic illustration of the side-collision protection, as used with a child safety seat or an infant car seat, namely in such a way, that a mechanism, by which the locking bar  34  is actuated, is covered by a cover plate  42 . Locking bar  34  extends from this cover plate sideways in such a way that is comes in contact with a stop retainer  33 , so that the folding part  31  is securely held in its functioning position and can only be released by pressing the release button  37  and, at the same time, is brought into its initial resting position, wherein the locking bar  34  may be moved out of its lock with the stop retainer  33  by using the release button  37 . 
         [0044]      FIG. 8  shows a detailed view of the underlying fixation mechanism allowing for an automatic interlocking of the stop retainer  33  with the locking bar  34 , wherein a part of the cover plate  42  was removed for the purpose of demonstrating the mechanism. In  FIG. 8  it is recognizable that the locking bar  34 , as well as the release button  37  are formed in one piece and create a lever which may be deviated around the locking bar axis  44  and is thereby pre-loaded by the spring element  39 , that locking bar  34  is automatically brought into a locking position with the stop retainer  33  as soon as the folding part  31  is moved from its resting position into its functional position. As long as the folding part  31  is in its resting position, the locking bar  34  will be pushed back into its pre-loaded position by side piece  36  of the folding part  31 , which has been assigned to it, from which the locking bar  34  will automatically be moved into the locking position with the stop retainer  33  in the event of it being flipped up. 
         [0045]    As long as the folding part  31  is in its resting position, the locking bar  34  will be pushed back into its intended position by side piece  36  of the folding part  31 , from which the locking bar  34  is automatically moved into the locking position with the stop retainer  33  in the event of the folding part  31  being flipped up, when the side piece  36  of the folding parts  31  has flipped up and away so much, that holding back of the locking bar  34  by side piece  36  is no longer possible. At this point it shall be noted, that, in this description, the terms “top” “bottom” “right” and “left” only serve as a better demonstration of the illustrations shown in each of the figures and therefore, these terms are not to be understood as limiting the scope of the disclosure, for the side-collision protection is indeed preferably attached to a child safety seat or an infant car seat in the illustrated manner, yet another functional arrangement is also possible, e.g. by the folding part being brought from resting position into its functional position from top to bottom, rather than bottom to top. Therefore, the folding part  31  may functionally also be folded from behind, from the front or from front to back or diagonally, wherein finally it is of significance, that support of child safety seats or the infant car seat by side element  30 , or the folding part  31 , respectively, may occur. 
         [0046]    As can also be recognized in  FIGS. 7  and especially  8 , the release button  37  located on the same level as the locking bar  34  is pushed to the side in the event of an expanding of the locking bar  34  and a locking with the stop retainer  33 , so that release button  37  extends outward through the cover plate  42 . For releasing the locking bar  34  from the stop retainer  33 , the release button  37  may be pushed in the direction of the cover plate  42  by a user, wherein the locking bar  34  is simultaneously released from its lock with the stop retainer  33 , so that a flipping back of the folding part  31  from its functional position into its resting position becomes possible. 
         [0047]      FIG. 9  shows an embodiment of a side-collision protection, posed on side area  35  of the seat shell  20  and illustrated according to the embodiment shown in  FIGS. 7 and 8  in schematic view. Here it needs to be noted that the axis  32 , around which the folding part  31  can be moved, is located outside of the seat shell, 
         [0048]      FIGS. 10 and 11  show a further embodiment of a side-collision protection, wherein according to this embodiment in each case two locking bars  34  are provided, as well as two release buttons  37 , wherein the locking bars  34  and the release buttons  37  are represented by the same component, wherein a locking bar area  34  in turn locks onto the stop retainer  33 , wherein the stop retainer  33  is formed on both sides pieces  36  of the folding parts  31 . The two locking bars  34 , or release buttons  37 , respectively, are in turn pre-loaded by the spring elements  39 , so that in their resting position they are pushed back by the side pieces  36  of the folding parts  31  and are present in pre-loaded form and snap back into their relaxed position blocking the folding part  31 , so that the folding part  31  is secured against falling back into its resting position and remains in its functional position until the actuation of both release buttons  37 .  FIG. 10  in turn shows a side-collision protection as it is actually applied, namely with a cover plate  42 , covering base plate  46 , which is visible in  FIG. 11  with removed the cover plate  42 . 
         [0049]      FIGS. 12 and 13  show another embodiment of a side-collision protection with the side element  30  formed as the folding part  31 , in each case in a schematic illustration, wherein the folding part  31  is in its functional position in  FIG. 12 , and in its resting position in  FIG. 13 . In its resting position, the folding part  31  essentially rests flat on the side area  35  of the seat shell  20 , wherein it can be recognized in  FIG. 12  that the folding part  31  is linked to two holding devices  48 , which extend through the seat shell  20  via respective openings. Furthermore, in  FIG. 12 , it can be recognized that a release slider  38  also extends through a respective opening through the seat shell  20  and is movable in a vertical direction, according to the indicated arrow, as well as in opposite direction. 
         [0050]      FIGS. 14 through 17  show the functional mechanism of the embodiment according to  FIGS. 12 and 13  schematically and in detail. Thus, in  FIGS. 14 through 17 , it can be recognized, that the holding devices  48  are movable around the axis  32  and stored on the axis  32 . Each of the holding devices  48  features a stop retainer  33  which locks with locking bar  34 , when the folding part  31  is moved from its resting position into its functional position. This interlock is particularly easy to recognize in  FIGS. 15 and 17 , as the folding part  31  is in its functional position in  FIGS. 15 and 17 . Here, the locking bar  34  is operatively connected with the release slider  38 , namely for the most part designed uniformly therewith, wherein the component comprising the locking bar  34  and the release slider  38  is brought into a functional position by the spring element  39 , so that the locking bar  34  is present in a pre-loaded position as long as the folding part  31  is in a resting position. Here, holding devices  48  are formed in such a way that they hold the component featuring the locking bar  34  in the pre-loaded position, as long as the folding part  31  isn&#39;t completely folded into its functional position. As soon as the folding part  31  reaches its functional position, the locking bar  34  locks with a stop retainer  33  which is formed on the holding devices  48 . This function is especially easy to recognize in  FIGS. 16 and 17 . 
         [0051]      FIGS. 18 and 19  show a further embodiment of a child safety seat in the form of an infant car seat  10 , wherein according to this embodiment, the folding part  31  may be folded into the side area  35  of the seat shell  20  in such a way that the folding part  31  sits even with side area  35  when in its resting position. This position is shown in  FIG. 18 .  FIG. 19  shows the folding part  31  folded out in a functional position, wherein the release button  37  is visible. The embodiment shown in  FIGS. 18 and 19  is located on the rotary axis  32  of a folding part  31 , in turn within the seat shell  20 , so that these aren&#39;t visible in  FIGS. 18 and 19 . This case again comprises a swivel mechanism as described in  FIGS. 12 through 17 , in which the component featuring locking bar  34 , as well as the release slider  38 , are shown in a resting position in a pushed back bottom position, and in a functional position in a resting top position, wherein once again it shall be noted, that the directions “top” “bottom” “right” and “left” only serve an explanatory purpose and that the side-collision protection may also be appropriate for other functional arrangements with regard to a child safety seat or an infant car seat. For releasing the folding part  31 , according to this embodiment, the release slider  38  is moved downward in the manner indicated by the arrow in  FIG. 12 . In doing so, the stop retainer  30  is released from the lock of locking bar  34 , so that the holding devices  48  can be swivelled back according to  FIGS. 16 and 17 , wherein the folding part  31  comes in contact with the seat shell  20 , and, depending on the embodiment, is brought into its resting position on the outside of the seat shell or pushed into the side area  35  of the seat shell. 
         [0052]    At this point it shall be noted, that all above described parts, individually and in any combination, especially those details illustrated in the drawings, are claimed as essential to the disclosure. Variations thereof are known to the person skilled in the art. 
       LIST OF REFERENCE NUMERALS 
       [0000]    
       
           10  Child safety seat, infant car seat 
           20  Seat shell 
           30  Side element 
           31  Folding part 
           32  Axis 
           33  Stop retainer 
           34  Locking bar 
           35  Side area 
           36  Side pieces 
           37  Release button 
           38  Release slider 
           39  Spring element 
           40  Motor vehicle contact area 
           42  Cover plate 
           44  Locking bar axis 
           46  Base plate 
           48  Holding device 
           50  Length 
           60  Seat area 
           70  Back section 
           80  End section 
           90  Fixation mechanism 
           100  Motor vehicle seat