Child seat system, comprising a seat element and a base that can be attached to a motor vehicle seat

Abstract

Child seat system comprising at least a first seat element (11a) and a base (10) that can be attached to a vehicle seat, wherein the base (10) has a pedestal element (13) and a swivel element (14), wherein at least the swivel element (14) has at least one fastening device (18a-18d) for attaching the first seat element (11a), wherein the swivel element (14) is rotatably arranged on the pedestal element (13) so that the swivel element (14) together with the seat element (11) can be rotated with respect to the pedestal element (13) to change the orientation of the seat element (11a), wherein the seat element (11a) is removable from the base (10).

Description

[0001] The invention relates to a child seat system comprising a seat element and a base that can be attached to a motor vehicle seat.

[0002] A child seat system is known from JPH051579U in which a seat element can be rotated relative to a base, allowing different orientations (in particular, a forward-facing or rear-facing orientation) to be set. The child seat system according to this prior art is considered to have room for improvement with regard to its flexibility.

[0003] It is therefore an object of the invention to propose a child seat system that is comparatively flexible in its application and, in particular, allows a change in the orientation of a seat element in the most reliable and safe way possible.

[0004] This problem is solved by the features of claim 1.

[0005] The base may include a rotating element. Preferably, the rotating element comprises at least one fastening device for attaching the seat element. The rotating element is preferably rotatably arranged (or can be arranged) on the base element such that the rotating element (alone and / or together with the seat element) can be rotated relative to the base element (by an angle of rotation) to change the orientation of the seat element.

[0006] The respective seat element can be removed from the base (especially the above rotating element of the base).

[0007] One idea is to design the base in two parts (with a base element and a rotating element), so that the orientation of the child seat can be changed by rotating it within the base. The seat element can remain fixed in position relative to the rotating element.

[0008] Another consideration is that the seat element can not only be rotated relative to the base (in its assembled state), but can also be (completely) removed from the base. A corresponding fastening device for securing the first seat element is preferably detachable, so that the seat element can be removed from the rotating element and thus from the base.

[0009] The above measures improve the flexibility of the child car seat system in a simple and safe way.

[0010] The rotating element can be a turntable. The base element can be an element that surrounds the rotating element at its edges. In particular, the base element can form a recess in which the rotating element is (rotatably) received, or form a frame in which the rotating element is (rotatably) received.

[0011] In this context, "orientation" refers to the orientation of the seat element in relation to the direction of travel or the child's line of sight. In a forward-facing orientation, the child faces forward, in the direction of travel. In a rearward-facing orientation, the child faces backward, towards the backrest (of a vehicle seat on which the base is mounted). An axis for changing the orientation is, in particular, at least substantially, vertical.

[0012] The respective seat element is preferably rotatable from a first orientation to a second orientation. This means, in particular, that the seat element generally remains on the base or plinth element during the change of orientation (i.e., it maintains at least contact with the base or plinth element). Specifically, such rotation is possible without a simultaneous translational movement (of the seat element relative to the base or plinth element). Removing the seat from the base or plinth element to perform the rotation is not (necessarily) required.

[0013] In particular, an intermediate position between the first and second alignment can be achieved by twisting (or rotating).

[0014] A range of angles can therefore be traversed continuously. In addition to a change of orientation (i.e., a rotation around an axis that is at least substantially vertical), the inclination of the seat element can also be adjusted (which, in a certain sense, also corresponds to a rotation; however, the term "inclination" or "change of inclination" will be used for this movement in the following). An axis for changing the orientation is not identical to an axis for the inclination (or tilt). The axis for changing the orientation is, in particular, (at least substantially) vertical. The axis for the inclination (i.e., tilt) is (in the installed position of the seat element) at least substantially horizontal. The inclination thus refers to a tilting or shifting of the seat, for example, moving the seat element from a resting position (reclining position) to a sitting position (or vice versa).

[0015] A child seat system is proposed, comprising at least a first seat element, a second seat element, and a base (mountable on a vehicle seat), wherein at least the first seat element (particularly in a state mounted on the base) is rotatable relative to the base or a (particularly the above) base element from a first orientation to a second orientation differing from the second orientation, wherein a corresponding rotation of the second seat element (i.e., a rotation relative to the base or a / the base element of the base from a first orientation to a second orientation differing from the first orientation, particularly in a state mounted on the base) relative to the base is restricted compared to the rotation of the first seat element. For further details, reference is made to claim 1.

[0016] The child seat system according to claim 1 improves flexibility for the user of the child seat system while simultaneously ensuring safety. In particular, by limiting the rotation of the second seat element, it can be prevented from being used in an undesirable way (for example, facing forward in a seat element for a relatively small child or baby). Limiting the rotation of the second seat element means that this seat element can only be mounted on the base in one (single) orientation.A restriction of rotation (compared to the first seat element) means that while the second seat element can be mounted on the base in various orientations (for example, facing backwards and at an angle of at least approximately 90° to it), it cannot be mounted in all the orientations possible with the first seat element (where the first seat element can then be configured, for example, facing backwards, forwards, and possibly at an angle approximately perpendicular to it). In a specific embodiment, for example, the first seat element can be mounted in both forwards and backwards, but the second seat element cannot be mounted in a forwards orientation.

[0017] According to a first sub-aspect, a manual operating device is provided for a locking device for releasing and / or blocking the setting, in particular rotation, wherein the manual operating device is accessible when the second seat element is mounted on the base, but is not accessible or at least only accessible with difficulty when the first seat element is mounted on the base.

[0018] According to the first sub-aspect, a flexible child seat system is achieved, in which safety aspects in particular are not neglected.

[0019] In particular, the configuration of the base, on the one hand, and the first or second seat element, on the other, determines whether the hand control is accessible or not. This results in an inherent improvement in safety, while the child seat system remains relatively flexible (due to the multiple seat elements that can be arranged on the base).

[0020] According to a second sub-aspect, which is preferably combinable with the first sub-aspect, a locking device (in particular the one above) for releasing and / or blocking the setting, especially rotation, is proposed, wherein the locking device can be actuated by the first seat element (in particular by changing the inclination of the first seat element), but not by the second seat element (in particular not by changing the inclination of the second seat element), which may be fixed in its inclination. In this context, "inclination" is understood to mean an inclination relative to the base.

[0021] The second sub-aspect also ensures, in particular, that a flexible system that meets high security requirements can be provided.

[0022] Overall, the aspects mentioned above propose a child seat system in which a base is suitable for receiving a seat element and allows the seat element to be detached from the base. Furthermore, a base is provided that is designed to (not simultaneously) receive two or more different seat elements, the base being particularly suitable for allowing the removal of each seat element. Finally, a base is proposed on which several seat elements, which can be received from the base, are rotatable.

[0023] The term "base element" refers specifically to that part of the base (or those parts or sections) that, when the base is mounted (on the vehicle seat), is in contact with the vehicle seat. In contrast, the swivel element is preferably not in contact with the vehicle seat when the base is mounted (although contact need not be completely eliminated). When mounted, the (respective) seat element is preferably in contact with the swivel element. Additionally, the (respective) seat element may also (partially) rest on the base element.

[0024] A removable (removable) seat element opposite the base is understood to be a seat element that can be completely removed from the base, so that there is a gap between the seat element and the base (after removal).

[0025] The rotating element can comprise at least 10% by weight of the entire base. Alternatively or additionally, the base element can comprise at least 10% by weight of the entire base. The rotating element can extend over at least 50% of the width of the entire base and / or at least 30% of the length. The base element can extend over at least 90% of the width or the entire width of the base element (or define the total width) and / or at least 90% of the length, preferably the entire length (i.e., the length of the base element). Width is understood to mean, in particular, an extension in a horizontal direction, perpendicular to the orientation of the base or the child's line of sight. Length is understood to mean an extension in a horizontal direction, parallel to the child's line of sight or the orientation of the base.Basically, width can be understood as the maximum width and length as the maximum length.

[0026] The rotating element can be designed as a (round, especially circular) turntable or rotating plate.

[0027] The child seat system can comprise at least two different seat elements, in particular the first seat element and the second seat element described above, each of which can be mounted on the base independently (and, in particular, removed from the base). The seat elements differ, in particular, with regard to the maximum and / or minimum permissible size of the child to be transported. The maximum and / or minimum size of the second seat element is preferably 1.2 times, more preferably 1.5 times, the maximum and / or minimum size of the second seat element. Maximum and minimum sizes are specified for each child seat (or each seat element) according to UN ECE Regulation 129 (in the version applicable at the filing date or earliest priority date of this application).

[0028] One of the seating elements, particularly the second seating element, may be a baby carrier or child seat of Group 0 / 0+ (weight < 13 kg; for use while driving, especially only rear-facing) and / or Class I (weight 9 to 18 kg). A further, particularly the first, seating element may be a child seat of Class I (9 to 18 kg) and / or II (weight 15 to 25 kg) and / or Class III (weight 22 to 36 kg). The weight specifications refer to the child's weight. The conjunction "and / or" in relation to the classes means that the child seats can be assigned to either only one class, only the other class, or both classes (for example, in the case of size-adjustable child seats). The classes should be determined in particular according to regulation ECE-R 44; 6.1.3 or a comparable regulation (in the version valid at the time of registration).earliest priority date of the present application).

[0029] Generally, the second seat is preferably configured for smaller children (especially babies) than the first seat. This can be recognized, for example, by the fact that the second seat has a lower height (maximum height), i.e., a lower vertical extension, than the first seat (and / or a lower weight). For example, the height of the first seat might be 1.5 times that of the second child seat. Furthermore, the weight of the first seat might be at least 1.5 times that of the second seat.

[0030] The base, in particular the base element, may include at least one anchoring device by which the base (the base element) can be (rigidly) anchored to the vehicle body. ISOFIX refers to the standard ISO 13216 (valid at the filing date or earliest priority date of the present application). The anchoring device may include at least one or at least (or exactly) two anchoring arms. These may optionally be adjustable in length. The anchoring device may be designed as an ISOFIX anchoring device. Furthermore, the anchoring device may be designed as a latch system anchoring device. Latch systems (where latch stands for "lower anchors and tether for children") are particularly common in the USA. In particular, the seat element may be connected to retaining brackets by means of (tensioned) webbing straps (Soft-ISOFIX).

[0031] The base, in particular the plinth element, may have a support foot (especially as an integral part of the plinth element).

[0032] The base, in particular the plinth element and / or the swivel element, may include an indicator device to indicate a specific configuration of the seat element. The configuration preferably includes an alignment of the seat element relative to the base and / or an alignment of the swivel element relative to the plinth element and / or a (correct) fastening of the base and / or a (correct) adjustment of any support leg that may be present.

[0033] The base, in particular the plinth element and / or swivel element, may include an anti-rebound device, in particular an anti-rebound bar (or anti-rebound projection). An anti-rebound device is understood to be, in particular, a device that at least partially absorbs (mitigates) a rebound of the seat element. A rebound can occur, for example, when the vehicle decelerates sharply, causing the seat element to accelerate forward relative to the vehicle and, due to the retaining devices, subsequently move (or rebound) backward (relative to the vehicle).

[0034] The base, in particular the rotating element, can have at least one fastening device for attaching a seat element or at least two or more fastening devices (for such attachment). A first fastening device may optionally (in particular only) be designed for attaching one (of the) first seat element. A second fastening device may (in particular only) be designed for attaching one (of the) second seat element. This allows for the flexible and variable use of different seat elements. This aspect is optionally also disclosed and claimed as an independent aspect of the invention.

[0035] At least one mounting device can be configured to attach two or more (different) seating elements. Multiple mounting devices can be configured to attach one seating element as well as at least one other seating element.

[0036] The base (especially the rotating element) may also have a further (the second and / or a third) fastening device or several further fastening devices in order to secure the seat element to the base with increased safety together with the first fastening device and / or to fasten another seat element (a second group of seats).

[0037] The (respective) fastening device may have one or more locking elements, for example one or more hooks, in particular for gripping one or more bars attached to a floor of the seating element.

[0038] The first and / or second seat element, optionally including a swivel element, can be locked in at least (or exactly) two different orientations, or in at least four (or exactly four) different orientations, in particular such that the locking mechanism can only be released by actuating a locking device, wherein the locking device is movable (in particular translationally movable and / or rotatable) relative to the base (if it is attached to it) and / or movable (in particular translationally movable and / or rotatable) relative to the seat element and / or swivel element if it is attached to the seat element and / or swivel element. The two different orientations can, in particular, be a forward orientation and a backward orientation. An optionalThe third or fourth alignment can be an alignment that extends (angularly), in particular exactly, between the forward and backward alignment, i.e. in particular at a 90° angle to it.

[0039] Alternatively or additionally, the first and / or second seating element, possibly including a rotating element, can be fixed in at least or exactly two different orientations, in particular such that the fixed orientation can be released (exclusively) by rotating the first or second seating element and / or the rotating element. These orientation(s) are preferably located (angularly), in particular exactly, between the forward and backward orientations, i.e., in particular at a 90° angle to them.

[0040] In general, a locking mechanism is achieved by interlocking devices (elements) that are preferably rigidly connected to the element (base, in particular a plinth and / or swivel element, or seat element) on which they are arranged. A locking mechanism can be achieved, in particular, by a combination of a projection and a corresponding recess / opening, wherein the projection can be provided on the base, in particular the plinth element, and the recess on the seat element or swivel element (or vice versa). Preferably, intermediate orientations (angled between the forward and reverse orientations, but not encompassing exactly the forward or reverse orientations) can be defined in this sense, in particular orientations at a 90° angle to the forward or reverse orientation, especially in both lateral directions.

[0041] A locking mechanism can be implemented, in particular, through a soft lock.

[0042] Preferably, at least one first and / or at least one second locking device is provided for releasing and / or establishing a locking (locking) of an alignment of the seat element and / or the rotating element.

[0043] The first and / or second locking device is / are preferably arranged on the base, in particular on the top of the base, and / or on the seat element, in particular on the underside of the seat element, and / or on the rotating element, in particular on the underside of the rotating element.

[0044] The first and / or second locking device can be arranged in an area that is covered by the first and / or one / the second seat element in the assembled state, preferably projecting from the respective top or bottom.

[0045] Preferably, the locking device can assume a first state in which the seat element, in particular including the swivel element, is (rotationally) locked relative to the base element, and a second state in which rotation is permitted. The (respective) locking device can, in particular, be transferable between a first position (which it can assume in the first state) and a second position (which it can assume in the second state), for example by rotation and / or translation (possibly both with respect to the base element and with respect to the seat element or the swivel element).

[0046] Preferably, one or more (or all) locking devices protrude upwards (at least in the second state) (for example, through openings, in particular slots) and are therefore particularly suitable to be moved and / or rotated (if necessary further or completely) relative to the base or plinth element by an outer surface of a seat element attached to the base (so that they are transferred from their first to their second position).

[0047] At least one, several or all locking devices can be biased towards their first position, e.g. by means of a spring.

[0048] In specific embodiments, at least one, several, or all locking devices can have (distal) ends (in particular, a lever arm) that are located in several positions (in particular, the first and second positions mentioned above) below a bearing surface (rotational surface) of the base (in particular, a corresponding bearing / rotational surface of the rotating element). In the first position, the corresponding locking device can engage in a counter-structure (e.g., a recess, an opening, a hole, or the like) of the base element and thereby prevent (block) rotation, while in the second position, it is moved away from the counter-structure, thereby enabling rotation.

[0049] The base is preferably suitable for receiving at least one seat element in at least two different states, namely a locking state in which, for example, an outer surface (e.g., lower and / or rear surface) of the seat element does not press against an associated locking device (in particular, a proximal end of the associated locking device does not press) and a rotation state in which, for example, the outer surface of the seat element presses against the associated locking device(s) (in particular, one, possibly proximal, end of, for example, another lever arm) and thereby moves the locking device into its second position.

[0050] In a specific embodiment, releasing and / or engaging a locking mechanism can be achieved by adjusting a configuration, particularly the inclination, of the first and / or second seat element, and especially by adjusting a configuration, preferably the inclination, of the first seat element. Preferably, the (corresponding) seat element can be moved into a maximally upright position (which may no longer be lockable, and therefore is not intended for permanent use and may be above the maximum operating position), whereby a rotational lock is then released and the seat element can be rotated accordingly (possibly with the rotating element). As soon as the inclined position returns to an operating position (which may be effected by the force of gravity and / or a preload device, particularly a spring device), the rotation is blocked again.

[0051] One, more, or all locking devices can be actuated manually, preferably via a manual operating device, in particular a sliding, pulling, and / or rotary operating device. Such manual actuation can act on the same locking device(s) as actuation via adjustment of the configuration (tilt) of a seat element. Alternatively, different locking devices can be provided, wherein a first locking device (or a first group of locking devices) can be actuated by adjusting the configuration (tilt) of a seat element, in particular the first seat element (or in particular, can be actuated exclusively by this), and a second locking device (or a second group of locking devices) can be actuated manually (possibly exclusively by manual actuation).

[0052] In general, one, several or all locking devices for releasing and / or establishing the locking position can be rotatable and / or translationally movable.

[0053] If necessary, a first and a second locking device can be arranged or designed in a mirror-symmetrical manner relative to each other.

[0054] Two or more locking devices can be coupled together, in particular in the sense that an actuation of a first locking device (automatically) also leads to a change of state of the second locking device (or its actuation).

[0055] A corresponding coupling can be achieved, for example, via a coupling rod (especially for rotary coupling or torque coupling).

[0056] A first actuating device, in particular a manual actuating device for releasing and / or locking the orientation of the seat element and / or the rotating element, is preferably arranged in a first lateral region of the base, in particular the base and / or rotating element. Optionally, a second (corresponding) actuating device is arranged in a second lateral region of the base, in particular the base and / or rotating element, opposite the first region. A lateral region of the base is understood to be, in particular, a region that extends from the furthest laterally projecting point of the respective element or device no more than 20% of the distance to the opposite furthest projecting point, preferably no more than 10%.In particular, a lateral area can be defined by being covered by a first (larger) seating element and remaining free by a second (smaller) seating element.

[0057] Alternatively or additionally, at least one (in particular at least one third) locking device for releasing and / or locking the orientation of the seat element and / or the rotating element can be arranged in a first lateral area of ​​the base, in particular the base and / or rotating element, and optionally a corresponding fourth locking device can be arranged in a second lateral area of ​​the base, in particular the base and / or rotating element, opposite the first area.

[0058] By arranging one or more or all locking elements laterally, in particular by arranging one, several or all actuating devices laterally, it can be easily achieved that the corresponding locking or actuating device is accessible in smaller (narrower) child seats (but not in larger seat elements).

[0059] In general, one, more, or all locking devices (in particular the at least one first and / or second and / or third and / or fourth locking device) can be manually actuated, for example, via an actuator (e.g., a button, a slider, and / or a switch), preferably requiring a double action or configuring the actuating device (the actuator) accordingly. A double action refers in particular to the simultaneous or successive execution of two operations (actions) (to make accidental actuation more difficult).

[0060] A (respective) manual actuating device for one or more or all locking devices (in particular the third and fourth locking device), e.g. the actuator mentioned above, can preferably be provided at a position of the rotary element which, when a seat element to be attached to the base is aligned in or against the direction of travel of the vehicle, is located in a lateral direction, i.e. in and against the direction of the doors of the vehicle adjacent to the seat.

[0061] Preferably, at least one, or more, or all locking devices (more preferably the at least one third and at least one fourth locking device) are connected to each other, such that when one of the locking devices is moved from its first to a second position, both (all) locking devices are moved. Specifically, the locking devices can be connected (or coupled) by a rod.

[0062] At least one first locking device (or at least one group of first locking devices) can be configured to interact with a first seat element (in particular, exclusively with it). At least one second locking device (or a second group of locking devices) can be configured to interact with a second seat element (in particular, exclusively with it).

[0063] In embodiments, at least one fifth and / or sixth locking device may be provided. Preferably, the fifth locking device is designed to prevent the seat element from rotating from the first to the second orientation in some of the possible headrest configurations of the seat element in the first orientation. Alternatively or additionally, the sixth locking device may be designed to prevent some of the possible configurations in the first orientation from being adjustable in the second orientation.

[0064] Generally, the headrest of the support element in the first orientation offers various adjustable configurations, particularly regarding the headrest height. Therefore, the configurations mentioned above refer specifically to headrest configurations, especially headrest height.

[0065] The fifth and / or sixth locking device is preferably independent of the locking devices described above (in particular the first to fourth locking devices). The fifth and / or sixth locking device can be designed, in particular, as described in DE 20 2016 104 181 U1 (there referred to in particular as blocking devices). Control of the fifth and / or sixth locking device can be effected, as described in DE 20 2016 104 181 U1, via a headrest, but also via any other mechanism, for example, via an actuator provided for this purpose. If, in contrast to DE 20 2016 105 181 U1, the base can be separated from the seat elements that can be attached to it, the means for blocking rotation can be provided in the base. Control can be transmitted analogously to the control described in DE 20 2016 104 181 U1, wherein the corresponding control means (e.g.,(rods) may be able to reach through the base element or be arranged there.

[0066] The second seat element can be designed in such a way that it does not have a structure (outer surface) suitable for transferring the corresponding locking device, or at least not suitable for transferring at least one first and / or at least one second locking device.

[0067] The first and third locking devices, on the one hand, and / or the second and fourth locking devices, on the other hand, can be identical, so that they can be actuated (with a first seat element) both by the seat element itself and (with a second seat element) via a manual actuator. The first seat element can completely or partially cover a manual actuator (e.g., the actuator, if necessary in any orientation), so that actuation is not possible or is significantly more difficult.

[0068] The first orientation corresponds specifically to a child seat configuration where the seat element is rear-facing. The second orientation corresponds specifically to a child seat configuration where the seat element is forward-facing.

[0069] The child seat can be rotatable into a third orientation, wherein the third orientation is preferably between the first and the second orientation, in particular rotated by 90° relative to the first and / or second orientation.

[0070] According to a fifth, independent aspect of the invention (which, however, can also be combined with one or more of the above aspects, in particular the first and / or second and / or third and / or fourth aspect), it is proposed: a child seat system comprising at least a (first) seat element and a base attachable to a vehicle seat, wherein the base has a support and / or stabilizing element, in particular a support and / or stabilizing fin, for supporting and / or stabilizing the seat element when it is located on the base.

[0071] A key idea of ​​the fifth aspect is that a support and / or stabilizing element, in particular a corresponding fin, is proposed, which forms part of a load-bearing (supporting) structure for the seating element.

[0072] The support and / or stabilizing element preferably projects upwards from the base, in particular from a rotating element of the base, for example by at least 10 cm, preferably at least 20 cm. In the assembled state, the seat element rests against the support and / or stabilizing element. The support and / or stabilizing element, in particular the fin, can be arranged at a front end (with respect to the direction of travel) (in a specific embodiment, at the end where a support leg is also attached). Fastening devices for attaching the seat element can be provided (directly) adjacent to, on, or integrated into the fin, so that the support and / or stabilizing element (the fin) rests against or is inserted into a rear wall of the seat element and can thus exert its supporting or stabilizing effect.

[0073] The support and / or stabilizing element (in particular the fin) preferably has a reinforcing insert, especially made of metal, which may optionally be surrounded by another material (e.g., plastic). The reinforcing insert may be U-shaped or (at least substantially) plate-shaped and may optionally correspond to or at least replicate the shape of the entire support and / or stabilizing element (in particular the fin). The support and / or stabilizing element (fin) preferably has an upwardly tapered shape. The support and / or stabilizing element (fin) may have an overall rounded shape. Furthermore, the support and / or stabilizing element may extend over (at least at its lower end) at least 10%, preferably at least 20%, and even more preferably at least 50% of the width of the base (maximum width of the base).Preferably, the support and / or stabilizing element (the fin) is provided on a base comprising a rotating element and a base element (as described above). Preferably, the support and / or stabilizing element (the fin) is located on the rotating element. This ensures, in particular, that the support for stabilization is provided at a suitable location. Alternatively, the support and / or stabilizing element (the fin) can be arranged on the base element.

[0074] Furthermore, the support and / or stabilizing element (the fin) can serve as an interface for transmitting settings of the seat element relative to the base. One possibility for this would be the transmission of a setting to allow or block rotation of the seat (or change its orientation), as described, for example, in DE 20 2016 104 181 U1. Control according to DE 20 2016 104 181 U1 can be achieved via a configuration (especially the height) of the headrest, but also via another element, such as a dedicated actuator (button, switch, slider, or the like).

[0075] In a specific embodiment, the support and / or stabilizing device (fin) can have one or more (first) projections in its upper section and / or one or more lateral (second) projections. The first projection(s) and the second projection(s) can be connected to each other (particularly within the support and / or stabilizing device or the fin), especially in such a way that they can be moved together in a (at least substantially) vertical direction relative to the base between two positions. In a first (upper) position, the seat can be (completely) locked, while in a second (lower) position, with the seat facing backwards, only rotation into an entry and / or exit position (e.g., rotated 90°) is possible. Alternatively, rotation can be (completely) blocked.

[0076] The base may contain features that, in a forward-facing position, prevent the projections from moving from the first to the second position. In this case, the seat element (especially a baby carrier) may, in its potentially only possible (rear-facing) position relative to the base, press against the first projections, thus blocking rotation. Alternatively or additionally, installation of the seat element (especially the baby carrier) in a forward-facing position may be effectively prevented, as the projections cannot be moved into the second position and the seat element (the baby carrier) cannot be lowered (sufficiently) to engage with the seat's locking mechanisms. In contrast, another seat element (e.g., a toddler seat) may...a Group II / III seat element) interact with the second projections, which can be pressed down by corresponding elements when the headrest or button etc. (see above) is moved into the appropriate position.

[0077] Another way to use the fin as an interface for transferring seat element settings would be to move a side impact protection element from a storage to a working position. The release mechanism can be designed in the same way as described for blocking rotation, i.e., by means of protrusions or recessed elements that interact with protrusions on the seat. If necessary, a switch can be located on the support and / or stabilizing device (the fin), particularly on the part that is covered when the seat element is installed, to control which side the side impact protection is moved to. This is particularly advantageous for seats for smaller children (especially infant carriers), as these are frequently removed from the base, and the side impact protection is then usually moved to the resting or storage position to avoid obstruction. Generally, a resting or storage position is defined as...The storage position of the side impact protection element is understood to be a position of the element in which it protrudes less (or not at all) in the lateral direction than in the operating position.

[0078] Overall, the design of the support and / or stabilizing element (the fin) allows the weight of the seat element (especially a baby carrier) to be comparatively low, since the seat element can be made relatively weak because it is reinforced during use by the support and / or stabilizing element (the fin).

[0079] The aforementioned task is further solved by a base for a seat element, the base having the characteristics described above (in particular according to the first and / or second and / or third and / or fourth and / or fifth aspect). Insofar as the seat element is also described with regard to the child seat systems described above, this preferably means for the base that it must be configured accordingly to interact with the seat element (in particular, to be connected accordingly).

[0080] Further features are described in the dependent claims.

[0081] The invention is explained in more detail below using an exemplary embodiment. The following are shown: Fig. 1 an oblique view of a base according to the invention with a schematically represented seat element; Fig. 2 a first detail from Fig. 1 ; Fig. 3 a second detail from Fig. 1 ; Fig. 4 a third section from Fig. 1 ; Fig. 5 a section of another part of Fig. 1 Fig. 6 shows an oblique view of a base according to the invention, wherein an interior is partially exposed; Fig. 7 shows an enlarged view of a detail from Fig. 6 ; Fig. 8 an enlarged view of a detail from Fig. 6 ; Fig. 9 an enlarged view of a detail from Fig. 6 or a perspective view of Fig. 8 Fig. 10 shows a view of the base according to the invention (with the interior partially exposed or without a cover) in an entry or exit position; Fig. 11 shows an enlarged view of a detail from Fig. 10 ; Fig. 12 an enlarged view of a detail from Fig. 10 Fig. 13 shows a view of the basis according to the invention analogously Fig. 10 , wherein the locking elements are in a different state; Fig. 14 an enlarged view of a detail from Fig. 13 ; Fig. 15 an enlarged view of a detail from Fig. 13 ; Fig. 16 an oblique view analogous Fig. 1 .

[0082] In the following description, the same reference numbers are used for identical and equivalent parts.

[0083] Fig. 1 Figure 1 shows an oblique view of a child seating system comprising a base 10 and (schematically indicated) a seat element 11a or 11b, on which a child 12 can sit. Seat element 11a is configured for a larger child than seat element 11b. The base 10 has a plinth element 13 and a swivel element 14 that is rotatable relative to the plinth element 13. The swivel element 14 can, in principle (depending on conditions described in detail below), be rotated in a 360° angle relative to the plinth element 13 (about an essentially vertical axis of rotation). The base 10, preferably the swivel element 14, has a fin 15 that projects upwards from the base 10, preferably from the swivel element 14.The fin 15 is designed to adequately support and stabilize at least one seat element that can be mounted on the base, such as a baby carrier, so that the fin at least partially provides the supporting structure for the seat element 11. This allows for weight savings on the seat element 11.

[0084] The base 10, in particular the swivel element 14, has fastening devices 16a to 16d. The fastening devices 16a and 16b can accommodate a rod provided on the seat element 11a / 11b. The fastening devices 16c and 16d can also accommodate a rod provided on the seat element 11a / 11b, so that the seat element 11a / 11b can be mounted on the base 10, in particular the swivel element 14. Preferably, all seat elements 11a / 11b provided for the base 10 can only be mounted in such a way that the child faces away from the fin 15. Alternatively, it would also be conceivable that, due to the fastening devices 16a and 16b on the one hand, and 16c and 16d on the other, a mounting rotated by 180° is permitted (in which case the fin 15 can also be omitted).

[0085] Since the fastening devices 16c, 16d are formed directly adjacent to the fin 15, the seat element 11 can be positioned against the fin (especially its back wall). Alternatively, the fin can also be inserted into the seat element (especially a back wall) and thus exert its stabilizing effect.

[0086] Preferably, the fin 15 is in direct contact with a seat element 11 (for example, a baby carrier) over a minimum of 10 cm², and more preferably over a minimum of 20 cm², when the latter is mounted.

[0087] The fin 15 can be oriented at least substantially vertically, in particular at an angle of no more than 30°, and preferably no more than 20° to the vertical. If the orientation varies, an orientation defined by a line connecting the upper and lower ends of the fin shall apply.

[0088] The fin can be (slightly) curved, especially to be adapted as well as possible to a similarly (slightly) curved outer wall of the seating element.

[0089] Furthermore, the fin 15 has lateral projections 17a, 17b and upper projections 17c, 17d. These projections are preferably connected to each other (inside the fin), but preferably movable relative to the fin 15 (i.e., also movable relative to the base 10).

[0090] Preferably, the projections 17a to 17d allow, in one (upper) position, a complete rotation of the seat and, in a second (lower) position, only a rotation from at least one backward-facing position of the seat into an entry and exit orientation (rotated by 90°). Alternatively, a complete blockage of rotation is also possible in this case.

[0091] If a seat element (e.g., infant carrier), particularly in a potentially only possible (rear-facing) configuration relative to the base, presses against the projections 17c, 17d, rotation can be blocked. Simultaneously, installation of the seat element (the infant carrier) in the forward-facing position can be effectively prevented, as the projections cannot be moved into the second position and the seat element (infant carrier) cannot be lowered sufficiently to engage with the locking mechanisms of the seat element relative to the base (to be described below). In contrast, another seat element can engage with the projections 17a, 17b, which can be pressed down by corresponding elements of the other seat element, for example, when the headrest or a button (etc.) is moved into the appropriate position.

[0092] A support foot 18 can also be arranged at the base 10, in particular at the base element 13.

[0093] In the configuration according to Fig. 1 In particular, a first seat element (in a forward-facing orientation) can be mounted, but not a second seat element, wherein the second seat element is preferably an infant carrier and the first seat element is a Group II / III child seat. However, in a position where the swivel element 14 is rotated 180° relative to the base element 13, mounting the second seat element (infant carrier) is also possible.

[0094] The following describes the mechanism for locking the rotating element 14 relative to the base element 13.

[0095] For this purpose, locking elements 18a, 18b are first required (see Fig. 1 , enlarged, for example, in Fig. 2 ) provided.

[0096] These can be operated by a manual operating device 19, in particular comprising a button 20 and a slider or puller 21, with corresponding movements indicated by arrows 22, 23 (see Fig. 3 ).

[0097] In Fig. 4 It can be seen that pulling / pushing the slider or puller 21 causes a hook-shaped inclined element 24 to press from below against a pin 25 of the locking element 18b. This causes a detent hook 26 of the locking element 18b to rotate out of a corresponding (in Fig. 4 (Not clearly visible in detail) recess on the base element 13. After the locking element 18a is connected to the locking element 18b via a rod 27, the locking element 18a automatically rotates out of its locked position and the rotation of the rotary element 13 relative to the base element 14 is released. This release can also be achieved analogously by (mirroring) actuation of a manual operating device 19' (opposite the manual operating device 19).

[0098] An alternative actuation for the locking devices 18a, 18b can be effected by a seat element (in particular a Group II / III child seat) being held against a lever arm 28 (see Fig. 5 ), in a specific configuration of the seat element, presses, so that by moving the lever arm 28 (in Fig. 5 a pivot to the left) the locking hooks from the in Fig. 5 The seat element is led out through the recognizable recesses 29. Here, the seat element can act simultaneously on both locking elements 18a and 18b (which are designed analogously or in reverse). However, due to the rod 27, acting on only one of the locking elements 18a or 18b may also be sufficient.

[0099] As in Fig. 1 As can be seen, the rotating element 14 has a cover 29. An internal structure (especially metallic) of the rotating element 14, which in particular includes an internal structure of the fin and an internal structure of the other components of the rotating element, may be provided.

[0100] In Fig. 6 bis 15 Further views of the base according to the invention are shown, in which the cover parts, in particular the cover 29, have been removed.

[0101] In Fig. 6 The seat base 10 is shown in a forward orientation, with the locking elements 18a, 18b in a locked state. In the detailed view according to... Fig. 7 One of the locking elements, namely locking element 18a, can be seen. Furthermore, an optional slot-like hole 30 is visible, which, however, is merely part of an optional aperture 32 that rotates with the entire rotating element 13. The actual counter-structure is a hole (concealed by the aperture) in an underlying ring 31.

[0102] In Fig. 8 The locking elements 18a, 18b can be seen again, with the aperture 32 (especially as a cross-shaped element) being visible again.

[0103] Fig. 9 shows a view analogous Fig. 8 , but from a different perspective.

[0104] Fig. 10 Figure 1 shows a further overview of the base 10 according to the invention (without covers) in an entry or exit orientation, wherein the locking elements 18a, 18b are in the unlocked state.

[0105] In Fig. 11 One can identify a pin 33, which in the configuration according to Fig. 10 a soft lock is formed. It can be seen that one (upper) surface of the pin 33 is rounded, so that the locking (soft lock) can be overcome by lateral forces (as a result of a rotation of the rotating element 14 relative to the socket element 13).

[0106] In the detailed view according to Fig. 12 The locking element 18b can be seen in an unlocked state. The locking element 18b preferably engages through the aperture 32, but rests on the ring 31. In comparison to Fig. 7 The locking element 18b is clearly pivoted.

[0107] Fig. 13 shows an overview of base 10 in a reverse orientation, with the locking elements 18a, 18b in a locked state.

[0108] Fig. 14 shows a detailed view from Fig. 13 , namely the locking element 18b in a locked position.

[0109] Fig. 15 shows a view analogous Fig. 14 , in contrast to Fig. 14 the locking element 18b is in a (clearly) unlocked position and reveals the counter-structure (the hole in the ring 31 below the aperture 32). Reference sign

[0110] 10 Base 11 Seat element 12 Child 13 Base element 14 Cover element 15 Fin 16a Fastening device 16b Fastening device 16c Fastening device 16d Fastening device 17a Projection 17b Projection 17c Projection 17d Projection 18a Locking device (locking element) 18b Locking device (locking element) 18 Support foot 19 Hand operating device 20 Knob 21 Slider or puller 22 Arrow 23 Arrow 24 Angled element 25 Pin 26 Detent hook 27 Rod 28 Lever arm 29 Recess 30 Hole 31 Ring 32 Cover 33 Pin

Claims

1. Child seat system, comprising at least one first seat element (11a), one second seat element (11b), and one base (10) mountable on a motor vehicle seat, wherein at least the first seat element (11a), in a state mounted on the base, is rotatable in relation to the base (10) or a socket element (13) of the base (10) from a first alignment into a second alignment deviating from the first alignment, wherein a corresponding rotation of the second seat element (11b) in relation to the base (10) or the socket element of the base in a state mounted on the base is possible to a restricted extent at least in comparison to the rotation of the first seat element (11a), such that different alignments are possible with the second seat element, but not all alignments which are possible with the first seat element.

2. Child seat system as claimed in claim 1, wherein the base (10) comprises a rotating element (14), wherein at least the rotating element (14) comprises at least one fastening device (16a-16d) for fastening the first seat element (11a), wherein the rotating element (14) is arranged so it is rotatable on the socket element (13) such that the rotating element (14) is rotatable together with the seat element (11) in relation to the socket element (13) to change an alignment of the seat element (11a), wherein the seat element (11a) is removable from the base (10).

3. Child seat system as claimed in any one of the preceding claims, wherein a manual actuating device (19) for a locking device (18a, 18b) is accessible to release and / or block the setting, in particular the rotation, when the seat element (11b) is mounted on the base (10), but is not accessible when the first seat element (11a) is mounted on the base (10).

4. Child seat system as claimed in either one of preceding claims 1 or 2, wherein at least one locking device (18a, 18b) to release and / or block the setting, in particular rotation, is provided which is operable by the first seat element (11a), in particular a change of an inclination of the first seat element (11a), but not by the second seat element (11b), in particular not by a change of an inclination of the second seat element (11b), which is possibly not changeable with respect to its inclination.

5. Child seat system as claimed in any one of the preceding claims, wherein the base (10) comprises a support and / or stabilization element, in particular a support and / or stabilization fin (15), for supporting and / or stabilizing the seat element when it is located on the base (10).

6. Child seat system as claimed in any one of the preceding claims, characterized in that the second seat element (11b) is an infant carrier.

7. Child seat system as claimed in any one of the preceding claims, characterized in that the first seat element is a group I, II, and / or III seat element.

8. Child seat system as claimed in any one of the preceding claims, characterized in that the base (10) comprises at least one anchoring device for releasably fastening the base (10) on a vehicle seat, and / or a support foot (18) and / or at least one anti-rebound device.

9. Child seat system as claimed in any one of the preceding claims, characterized in that the base (10) comprises at least one belt guiding device and / or one indicator device for indicating a specific configuration, in particular the alignment of the rotating element (14) in relation to the socket element (13).

10. Child seat system as claimed in any one of the preceding claims, characterized in that the base (10) comprises at least one fastening device (16a-16d) for fastening a seat element or at least two fastening devices, wherein a first fastening device is designed for fastening the first seat element and a second fastening device is designed for fastening the second seat element.

11. Child seat system as claimed in any one of the preceding claims, characterized in that the first and / or second seat element, possibly including rotating element (14), is lockable in at least or precisely two different alignments such that the locking is only releasable by the operation of a locking device and / or the first and / or second seat element, possibly including the rotating element (14), is fixable in at least or precisely two different alignments such that the fixing can be canceled solely by a rotation of the first or second seat element, possibly including the rotating element (14).

12. Child seat system as claimed in any one of the preceding claims, characterized in that at least one first and / or at least one second locking device is / are provided for releasing and / or establishing a lock of the rotating element (14), wherein the first and / or second locking device is / are manually operable and / or wherein the first and second locking device are arranged or formed mirror symmetrically to one another.

13. Child seat system as claimed in any one of the preceding claims, characterized in that the first seat element can be mounted both in the forward alignment and in the reverse alignment, but the second seat element at least cannot be mounted in the forward alignment.

14. Child seat system as claimed in any one of the preceding claims, characterized in that the first alignment corresponds to a configuration of the child seat in which the seat element is aligned backwards, and the second alignment corresponds to a configuration of the child seat in which the seat element is aligned forward.

15. Child seat system as claimed in any one of the preceding claims, characterized in that the second seat element can be mounted in the backwards alignment and in an alignment at least approximately at a 90° angle thereto.