Fastening system for child seat

Abstract

The invention relates to a fastening system (100) for fastening a child seat (10) and / or a base (11) for a child seat to a motor vehicle seat (1), comprising a hook (130) which is suitable for surrounding a bow (4) arranged on the motor vehicle side, in particular an Isofix anchor, in order to couple the fastening system (100) to the motor vehicle seat (1), the hook (130) is switchable between a first position, in which the hook does not couple the fastening system (100) to the motor vehicle seat (1), and a second position, in which the hook couples the fastening system (100) to the motor vehicle seat (1); and a preferably electrical detection device (180), in particular comprising a sensor (181), which is suitable for detecting whether the hook (130) is in a first position or a second position, the detection device (180) being configured for indirectly detecting the respective position, and / or the detection device (180), in particular the sensor (181), being at a distance from the hook (130), the hook is spaced apart from the hook both in the first position of the hook and in the second position of the hook.

Description

Field of the Invention

[0001] The present invention relates to a fixing system for fixing a child seat and / or a base for a child seat to a motor vehicle seat. Background Art

[0002] A professional understands a child seat as a restraint system for children for transporting children in a vehicle, preferably a motor vehicle.

[0003] It should be noted that within the scope of the present invention, the term "child seat" should be understood as a superordinate concept for (classical) child seats, baby shells, booster seats, seat boosters, etc. For example, the child seat in the present invention can be a (classical) child seat (for older children, such as Group I / II and / or III child seats), which has a backrest structurally separated from the seating area, and the inclination of the backrest can be changed relative to the seating area if possible. Such a structural separation can be formed, for example, by a bend or the like. However, generally speaking (when not otherwise specified in a specific case), the child seat should always be understood as an abbreviation for "child seat, such as baby shell, booster seat, and / or seat booster", or within the scope of the present invention, the features provided for a (classical) child seat can in principle also be applied to baby shells, booster seats, and / or seat boosters, and vice versa (as long as the contrary is not mentioned). The same applies to the concept of "child", which should also be understood as a superordinate concept for children, infants, and toddlers. A so-called "baby shell" generally (only) includes a one-piece shell for accommodating an infant or a child, and can include its own seat belt system, possibly including a headrest and possibly including other components. Instead of a (structurally separated) backrest, such a "baby shell" has a back section adjacent to the "seating area", in which the child's buttocks can be accommodated.

[0004] A professional especially understands the "base for a child seat" as a pedestal on which a child seat can be fixed detachably or non-detachably.

[0005] Child seats, baby shells, booster seats, etc. that can be placed on a motor vehicle seat have been known for a long time. Such child seats, baby shells, booster seats, etc. are used as seats for children, infants, and toddlers, and especially in the event of an accident and / or emergency braking, provide enhanced protection for them. Such child seats can be fixed using the vehicle's seat belt system or by means of Isofix anchors. This fixing locks the child seat to the motor vehicle seat in the event of an accident, so that the child seat, especially in the event of a frontal collision (impact) and / or emergency braking, is held on the motor vehicle seat and does not fly forward.

[0006] Since such child seats often have to be changed and / or installed and removed between different vehicles, especially motor vehicles, it is particularly important that the detachable anchoring of the child seat enables user-friendly handling. However, in addition, such simplified handling should not come at the expense of the safety of the child in road traffic or in the event of an accident.

[0007] Therefore, the fixing of the child seat on the motor vehicle seat must be as stable as possible. At the same time, however, it is also desirable that this fixing allows a certain degree of adjustability in order to be able to optimally adapt to different motor vehicle seats.

[0008] For example, from EP3600954B1, an adjustable fixing system, in particular a telescopic system, for fixing a child restraint system, in particular a child seat, on a motor vehicle seat is known. However, the fixing system disclosed there, although consisting of a large number of different individual components (whereby this structure is considered to be in need of improvement in terms of manufacturing costs and error-proneness in use), lacks a possible solution for detecting the fixing of the child restraint system.

[0009] EP1871637A1 discloses a fixing system for fixing a child restraint system, in particular a child seat, on a motor vehicle seat. The fixing system here includes a first connecting member for connection to the motor vehicle seat and a second connecting member for connection to the anchor of the child seat, wherein the second connecting member includes a detector for detecting a secure connection to the motor vehicle seat. However, the reliability of the detection of EP1871637A1 is considered to be in need of improvement. In addition, the less user-friendly length adjustment of the system achieved by means of pins can be considered disadvantageous in this fixing system. Summary of the Invention

[0010] Therefore, the object of the present invention is to provide a fixing system for fixing a child seat and / or a base for a child seat on a motor vehicle seat, which meets the above requirements regarding stability, user-friendliness, safety and general availability in as cost-effective and error-free a manner as possible.

[0011] This object is solved in particular by the features of claim 1.

[0012] In particular, this object is solved by a fixing system for fixing a child seat and / or a base for a child seat on a motor vehicle seat, the fixing system comprising:

[0013] - A hook adapted to surround an arcuate member provided on the side of a motor vehicle, in particular an Isofix anchor (or an anchor conforming to ISO 13216 standard or UNE CE R 145 standard), so as to couple a fixing system to a motor vehicle seat, wherein the hook can be switched between a first position and a second position. In the first position, the hook does not couple the fixing system to the motor vehicle seat during the use of the fixing system. In the second position, the hook couples the fixing system to the motor vehicle seat during the use of the fixing system;

[0014] - And preferably an electrical detection device, which in particular includes a sensor. The detection device is adapted to detect whether the hook is in the first position or the second position (and thus also detect whether the child seat or the base for the child seat is in a used state or a non - used state). Wherein the detection device is configured to indirectly (not directly) detect the corresponding position, and / or the detection device, in particular the sensor, has a spacing relative to the hook, that is, has a spacing relative to the hook not only in the first position of the hook but also in the second position of the hook.

[0015] The core idea of the present invention is to indirectly detect the corresponding position instead of directly detecting it. Therefore, the position detection can be carried out in a particularly reliable and structurally simple manner. The path for transmitting information about the state basically determined by the detection device (for example, in the direction of the evaluation unit and / or the display unit and / or the signal device) is particularly shortened. Contrary to the prior art, for example, no (electrical) cable or only a short cable is required to transmit the detected information about the use state of the child seat or the base for the child seat along the (longitudinally movable) fixing system. Another advantage thereby obtained is that the fixing system according to the present invention has a higher service life. For example, when there is no additional cable or only a relatively short (electrical) cable, the cable may break, wear, etc. during the service life of the fixing system. Similarly, in the fixing system of the present invention, it is advantageous that due to the absence or reduction of cables, the longitudinal mobility can be improved or simplified compared to the embodiments according to the prior art. In this regard, it is particularly recognized that in the prior art, for example, in EP1871637A1, the detector is directly arranged on the so - called "second connecting member" in EP1871637A1. This particularly gives rise to the problem that the cable for guiding the detector information from the second connecting member to a display device or a display unit spatially separated from the second connecting member may be damaged, such as being squeezed, broken, and / or worn.

[0016] Unless otherwise clearly stated, terms such as "first", "second", etc., for example, the second spring, are used to enable different elements to be distinguished from each other. Therefore, the existence of a first spring or a second spring does not necessarily imply the existence of more than one spring.

[0017] Preferably, the fixing system comprises a transmission device (preferably mechanical and / or rigid and / or having a maximum extension dimension of at least 1 cm or at least 3 cm or at least 5 cm or at least 10 cm - understood as the spacing of this pair of points with the maximum spacing relative to each other of the transmission device), which is movable relative to the hook, in particular, and which contacts the hook in at least one or exactly one position and can occupy at least two transmission device positions, in particular a first transmission device position, a second transmission device position and / or a third transmission device position, depending on the position of the hook, wherein the detection device is configured to detect, in particular directly, the respective transmission device position. Thereby, in particular, the electrical transmission path can be reduced.

[0018] The fixing system may have a retaining lock which can be switched between a locked position and a released position, in which the retaining lock holds the hook in its second position and in which the retaining lock does not hold the hook in its second position, wherein the retaining lock is preferably part of the transmission device mentioned above.

[0019] Preferably, the minimum spacing between the detection device or sensor and the hook is at least 1 cm, preferably at least 3 cm, further preferably at least 5 cm or at least 10 cm.

[0020] The fixing system is preferably of telescopic construction, wherein a first section and a second section are provided, which can move relative to each other to adjust the length of the fixing system (this should in particular be understood as meaning that the first section and the second section can move relative to each other, in particular translationally, preferably in the longitudinal direction), wherein an adjustment lock is preferably provided in or on the second section, which can be configured (adjusted) relative to the first section and the second section such that the length adjustment of the fixing system can be carried out selectively and / or can be restricted and / or cannot be carried out, wherein the first section is preferably fixed (if possible detachably) or can be fixed to the child seat or the base for the child seat, and / or is integrally formed with the child seat or the base for the child seat at least in part, and / or the second section is provided for (if possible detachably) fixing to the motor vehicle seat (wherein the motor vehicle seat in particular has a seat surface and a backrest).

[0021] Preferably, the second section of the fixing system defines a hollow space, for example formed by a tube section, wherein, further preferably, the transmission device is arranged mostly or completely within this hollow space. The retaining lock can also be arranged partly, in particular mostly or completely, within this hollow space.

[0022] Preferably, the second section of the fixing system has a proximal end and a distal end, wherein the hook is arranged on the distal end.

[0023] Preferably, the first section has a plurality of, at least two, preferably at least 4 and / or at most 15, preferably at most 10 (e.g., 8, 9 or 10) voids spaced apart from each other in the longitudinal direction, and these voids are respectively adapted to receive the locking sections of the adjustment locking member (see below). The spacing between two voids can be in the range of 1 cm to 2 cm here, for example 15 mm, and / or at least 3% and / or at most 50% of the maximum pull-out amount. The voids can in particular be through-holes.

[0024] In particular, the adjustment locking member has a locking section, in particular the above-mentioned locking section, which can selectively engage or disengage with a mating structure of the first section, in particular with at least one of the voids spaced apart from each other in the longitudinal direction of the first section, so as to adjust the second section relative to the first section in terms of the length of the fixing system, wherein the locking section preferably can occupy at least one retracted position, and / or the locking section can occupy an extended position. The locking section is in particular at least partially wedge-shaped.

[0025] Additionally or alternatively, the adjustment locking member in particular has a first acting section for holding the adjustment locking member in the extended position. The first acting section can be adapted to cooperate with a locking blocking section of the transmission element (see below) and hold the adjustment locking member in the extended position when the transmission element is in a second non-driven position (see below).

[0026] Additionally or alternatively, the adjustment locking member preferably has a second acting section for holding the adjustment locking member in the retracted position. The second acting section can be adapted to cooperate with a driving section of the transmission element (see below), such that when the transmission element is transferred to the driving position (see below), the adjustment locking member is driven to the retracted position.

[0027] A free space can be provided adjacent to the first acting section (in particular as a void between the first acting section and the second acting section), such that when the transmission element is in the driving position, the locking blocking section of the transmission element is opposite to this free space, so that the locking blocking section of the transmission element does not block the holding locking member from switching to the retracted position.

[0028] Additionally or alternatively, the adjustment locking element preferably has a third active section, in particular as part of the locking section, which is adapted to be contacted by an edge of a mating structure (in particular a void) of the first section when a force presses the first section and the second section against each other to reduce the length of the fixing system, wherein the third active section is preferably inclined relative to the longitudinal direction, such that the adjustment locking element is pressed in the direction of the retracted position by the contact of the third active section and the resulting force.

[0029] The adjustment locking element can be pre-tensioned towards the extended position, in particular by at least one third spring. The adjustment locking element can also be rotatable about a second axis which is preferably fixed in position relative to the second section, and for this purpose can have a second shaft section or a second support section. The third spring (or at least one third spring of the possible plurality of third springs) can be fixed, in particular held and / or supported, at the second axis on the adjustment locking element, and / or can be configured as a helical torsion spring.

[0030] Alternatively or additionally (in particular when a plurality of third springs are provided), the third spring (or at least one third spring of the possible plurality of third springs) can also be fixed, in particular held and / or supported, spaced apart from the second axis on the adjustment locking element, and / or can be configured as a tension spring. Other types of springs are also conceivable, in particular two third springs (redundancy) can also be provided.

[0031] In the extended position of the adjustment locking element, the side of the locking section opposite the third active section can be arranged at least substantially perpendicular to the longitudinal direction (in particular enclosing an angle of 80° to 100° with the longitudinal direction). Alternatively or additionally, in the extended position of the adjustment locking element, the side of the locking section which forms the third active section can enclose an angle of 35° to 55°, preferably 45°, with the longitudinal direction.

[0032] Preferably, a transmission element (in particular the transmission element described above) is provided for the fixing system, preferably as part of the transmission device mentioned above, which is movably arranged, in particular longitudinally movably, in the second section or on the second section between at least one first non-driven position, a second non-driven position (in particular those mentioned above) and a driven position (in particular those mentioned above) in a switchable manner, wherein the transmission element has a drive section (in particular the drive section mentioned above), which is adapted to cooperate selectively with the (second) active section of the adjustment locking element in order to transfer the adjustment locking element from the extended position into the retracted position. The drive section can be formed by a surface which is at least substantially configured such that the longitudinal direction forms its surface normal.

[0033] Additionally or alternatively, the transmission element has a locking stop section (especially the one mentioned above), which is adapted to selectively cooperate with the (first) acting section of the adjustment lock to prevent the adjustment lock from moving from the extended position to the retracted position. The locking stop section can have a stop surface that is straight in the longitudinal direction or inclined at least 5° and / or at most 30°, preferably at most 20°, relative to this longitudinal direction. If the locking stop section is inclined, it is preferably such that the transfer of the transmission element from the second non-driven position (in which the locking stop section blocks the transfer of the adjustment lock to the retracted position) to the first non-driven position (which follows with the locking position of the holding lock) is made easier, or is possible even when a force displaces the adjustment lock in the direction of the retracted position.

[0034] Additionally or alternatively, the transmission element is operatively connected to the holding lock (especially the one mentioned above), such that the movement of the transmission element - especially by means of an operating element - causes the holding lock to switch between the release position and / or the locking position.

[0035] Preferably, the adjustment lock and the transmission element are coordinated with each other such that a (not dominant in terms of force value) share of the force for moving the adjustment lock from the extended position to the retracted position can be transmitted via the first acting section to the locking stop section in order to displace the transmission element from the second non-driven position to the first non-driven position.

[0036] Preferably, the adjustment lock is of unitary construction, if possible integral. The transmission element can be preloaded towards the first non-driven position especially by a second spring (see below), in which the locking stop section does not prevent the adjustment lock from moving from the extended position to the retracted position, and in which the drive section does not cooperate with the adjustment lock to move the adjustment lock from the extended position to the retracted position. In the first non-driven position, the adjustment of the length of the fixing system can be allowed or implemented with a limitation. The transmission element and the holding lock can be constructed and arranged such that when the transmission element is in the first non-driven position, the holding lock is in the locking position. The transmission element includes a second abutment section in one embodiment in order to abut against the first abutment section of the holding lock.

[0037] Additionally or alternatively, the transmission element is preferably operatively connected to the holding lock such that the movement of the transmission element can - if possible by means of an operating element (of the fixing system) - release the holding lock to switch between the release position and / or the locking position. In particular, the movement of the transmission element by means of the operating element can move the holding lock from the locking position to the release position.

[0038] The transfer device can be made of plastic (at least 10 wt% or at least 30 wt%) and / or metal (at least 10 wt% or at least 30 wt%). Preferably, at least one section of the transfer device that touches the hook is made of metal, especially steel (at least 50 wt% or at least 80 wt%), and / or the section of the transfer device that does not touch the hook is made of plastic (at least 50 wt% or at least 80 wt%).

[0039] The transfer element can be made of plastic (at least 50 wt% or at least 80 wt%), especially as an injection-molded part. The retaining lock and the transfer element can be firmly connected to each other, for example, firmly connected to each other by fixing devices, and / or a section of the retaining lock - especially the first abutting section - can be injection-molded and coated.

[0040] According to an embodiment, the retaining lock is made of metal, especially steel (at least 50 wt% or at least 80 wt%), and / or the transfer element is made of plastic (at least 50 wt% or at least 80 wt%), especially to achieve high stability in the relevant areas on the one hand and save weight and / or cost on the other hand.

[0041] In an alternative embodiment, the retaining lock and the transfer element can be integrally constructed.

[0042] Generally, especially the hook, the adjustment lock, and / or the retaining lock can be made of metal, especially steel (at least 50 wt% or at least 80 wt%).

[0043] The transfer device, especially the transfer element, can have a second guide between the second section and the transfer element, specifically, for example, by a clearance, a guide groove or a guide slot if possible, and a third protrusion, a guide pin or a guide bolt if possible.

[0044] Preferably, the transfer device, especially the transfer element, has support sections that directly abut against the second section to support the transfer device, especially the transfer element, on the second section and, if possible, enable the transfer element to slide along the second section. The support sections can especially be configured as protrusions, and preferably, the support sections can be provided at the height of the locking stop section relative to the stop surface.

[0045] According to one embodiment, the fixing system in or on the second section, in particular in addition to the adjustment locking element, may also have a further adjustment locking element, in particular a second adjustment locking element, which can assume at least one extended position and a retracted position relative to the first section and the second section and is adapted to selectively allow or restrictedly allow adjustment of the length of the fixing system. In this regard, reference is made to EP3600954B1, the disclosure of which is hereby incorporated into the present application and in which, for example, two adjustment locking elements for adjusting the length of the fixing system are provided.

[0046] If preferably the hook is in its first position and the adjustment locking element - in particular its second acting section - is held in the retracted position by a transmission device, in particular by cooperation with the drive section of the transmission element, the transmission device is in particular in the third transmission device position.

[0047] If preferably the hook is in its first position and the adjustment locking element, in particular its first acting section, is prevented from being transferred from the extended position to the retracted position by a transmission device, in particular by cooperation with the locking blocking section of the transmission element, the transmission device is in particular in the second transmission device position.

[0048] If preferably the hook is in its second position and the adjustment locking element, in particular its locking section, engages with one of the cutouts of the first section, the transmission device is in particular in the first transmission device position.

[0049] In particular, the transmission device, in particular the transmission element, may have a detection section which is adapted to be detected by a detection device - in particular a sensor - for determining the position of the transmission device, in particular the transmission element, wherein the detection section and the detection device - in particular the sensor - are preferably adjacent to each other in at least one transmission device position.

[0050] A motor vehicle seat may have at least one, preferably exactly two, arcuate members in the transition region between the seating surface and the backrest, which arcuate members may be (respectively) surrounded by the hooks of the fixing system. A child seat or a base for a child seat may have a lower side which is arranged for placement on the seating surface of the motor vehicle seat. A child seat or a base for a child seat may have a rear side which is arranged for facing and, if possible, abutting against the backrest of the motor vehicle seat.

[0051] The section of the fixing system (in particular as already mentioned above) may be flush with the lower side and / or the rear side of the child seat or the base for the child seat.

[0052] In an embodiment, the first section and / or the second section (at least substantially) has a cross-section with at least part of the section being square and / or rectangular.

[0053] The first section and / or the second section are preferably at least substantially profiled (or configured as a profile), and if possible, are hollow and / or tubular.

[0054] According to an embodiment, the first section and / or the second section have a height and / or a diameter (the largest when observed in the longitudinal extension), and the height and / or the diameter are less than or equal to 5 cm, preferably 2 cm to 3.5 cm.

[0055] According to an embodiment, the first section and / or the second section have a width (the largest when observed in the longitudinal extension), and the width is less than or equal to 3 cm, preferably 1.0 cm to 2.0 cm.

[0056] Preferably, the first section can partially surround or enclose the second section (or vice versa according to the embodiment).

[0057] The first section is preferably at most 40 cm long, and / or at least half as long as the second section, and / or at least 2 cm long, preferably at least 4 cm long.

[0058] The second section is preferably at least 4 cm long, more preferably at least 8 cm long, and / or at most 40 cm long, preferably at most 30 cm long (for example, 20 cm long).

[0059] In an embodiment, the second section has a certain number of preferably inwardly directed protrusions. Each of the protrusions can be configured over the entire width of the second section (transverse to the longitudinal direction, especially in the left - right direction) or over a part of the width of the second section. Each of the protrusions can be configured, for example, as a bulge or as a bolt.

[0060] The second section preferably has a first protrusion for supporting the hook in the first position of the hook.

[0061] Alternatively or additionally, the second section preferably has a second protrusion for guiding the locking member, possibly a plurality of second protrusions, and / or has at least one third protrusion for guiding the transmission element. At least one optional fourth protrusion of the second section can be used to support the adjustment locking member in the extended position of the adjustment locking member.

[0062] The hook is preferably pre - tensioned towards its first position, especially by a first spring. The hook can be rotatable about a first axis which is preferably fixed relative to the position of the second section. In addition, the hook can have a first shaft section or a first support section. The hook can also have a locking section which is adapted to surround the bow - shaped member on the vehicle side and / or is configured as a C - shape or a U - shape.

[0063] The locking section can in particular have two legs opposite one another, one of the legs being adjacent to the operating section of the hook. The first spring can be fixed, in particular held and / or supported, at the first axis on the hook, and / or the first spring can be configured as a helical torsion spring.

[0064] Alternatively, the first spring can be fixed, in particular held and / or supported, spaced apart from the first axis on the hook, and / or the first spring can be configured as a tension spring. Other types of springs can also be conceivable in principle.

[0065] The first (functional) end of the first spring can be supported on the hook. The second end of the first spring can be supported on the second section. The first spring and the second spring - in particular the second spring already described above - can also be the same and be configured by a single (first / second) spring which simultaneously pre-tensions the hook towards the first position and pre-tensions the holding lock towards the locking position. This is preferably achieved in that the first end of the first / second spring is supported on the hook and the second end of the first / second spring is supported on the holding lock (or, if possible, on the transmission element).

[0066] Furthermore, a force acting in the longitudinal direction (for example, due to pressing against an arcuate part of the vehicle side) on the operating section, that is to say acting on the operating section from the distal end of the second section towards the proximal end of the second section, can drive the hook from the first position into the second position.

[0067] Preferably, the fixing system can be completely sunk into the child seat or the base for the child seat. The first section can be mounted on the child seat or the base for the child seat such that it is completely sunk in, or at least ends flush in part of the section with the child seat or the base for the child seat. The second section can in turn be adjusted relative to the first section into at least one position such that it is likewise completely sunk in, or at least ends flush in part of the section with the child seat or the base for the child seat.

[0068] The minimum length of the fixing system and the maximum length of the fixing system can differ by at least 4 cm, preferably at least 8 cm, and / or at most 30 cm, preferably at most 20 cm.

[0069] The maximum overhang of the fixing system beyond the child seat or the base of the child seat can be at least 4 cm, preferably at least 8 cm, and / or at most 30 cm, preferably at most 20 cm.

[0070] The retaining lock can be pre-tensioned towards the locking position, especially by means of a second spring, especially the second spring described above, especially a tension spring. The first end of the second spring can be supported on the retaining lock. The second end of the second spring can be supported on the second section. The hook and the retaining lock can be constructed and arranged such that when the hook is in its first position, the hook holds the retaining lock in the release position by means of the hook blocking section, and furthermore, the transfer of the hook into its second position (e.g. by operating the operating section) allows the retaining lock to transfer into its locking position, especially driven by the second spring or the first / second spring.

[0071] The hook can have an engagement section into which the retaining lock engages with its locking section when the hook is in its second position and the retaining lock is in its locking position. The retaining lock can have a first abutment section for abutting against the transmission element. The retaining lock can also be L-shaped, especially such that the end of one arm of the L-shape forms the locking section, and / or the other arm of the L-shape (in whole or in part) forms the abutment section. The retaining lock can be made of metal (at least 50 wt% or at least 80 wt%), especially steel. The retaining lock can be switchable between the locking position and the release position by translation (alternatively: rotation or with a share of translation and rotation).

[0072] The transmission device, especially the transmission element, is preferably operatively connected to the operating element (of the fixing system), especially to the operating element described above, for operation by the user.

[0073] Furthermore, the fixing system preferably has: a first pin which is especially firmly connected to the second section, and / or a second pin which is especially firmly connected to the transmission element, wherein the first pin and the second pin are preferably provided for connection to the operating element, especially to the operating element described above, wherein the first section preferably has a lateral guide slot which extends in the longitudinal direction, preferably over at least 50% of the length of the first section, and wherein further preferably both the first pin and the second pin extend through this lateral guide slot. The minimum and maximum lengths of the fixing system can be determined by this lateral guide slot.

[0074] Preferably, the second section has an oblong hole which overlaps a section of the lateral guide slot of the first section and guides the movement of the second pin in the longitudinal direction towards the first pin or guides the first pin.

[0075] Preferably, an operating element is provided, in particular the operating element described above, which is in particular for (preferably indirect or direct) manual operation by a user. The fixed section of the operating element is preferably connected to the second section, in particular by means of the first pin described above, in particular firmly, and the movable section of the operating element is preferably operatively connected to the transmission element and / or movable relative to the fixed section by means of the second pin, in particular the second pin described above. Further preferably, the operating element or the movable section of the same operating element can be blocked by a holding device, and a release operation part can be provided to release the holding device. The operating element, in particular its release operation part, can include at least one button and / or at least one key and / or at least one slide and / or at least one operating lever.

[0076] Preferably, the movable section of the operating element is movable relative to the fixed section (and thus also relative to the second section), in particular against the force of the fourth spring.

[0077] The fixing system preferably has an installation position (see below), in which the transmission device is in the second transmission device position, the hook is in the first position, preferably the holding lock is in the released position (held by the hook blocking section of the hook), further preferably the transmission element is in the second non-driven position, and the adjustment lock is in the extended position, in which the release operation part (of the operating element) is not operated by the user.

[0078] In the case where, according to a preferred embodiment, the user, for example starting from the installation position (where the release operation part (of the operating element) is still not operated), presses the hook, in particular its operating section, (firmly) against the vehicle-side bow-shaped member, the transmission device is transferred from the second transmission device position to the first transmission device position, in particular the holding lock is transferred to the locked position, and further preferably the transmission element is transferred from the second non-driven position to the first non-driven position, in which the adjustment lock (is still) in the extended position, and the hook (by the operation of the operating section by the vehicle-side bow-shaped member) is transferred to the second position, in which the two legs of the hook surround the vehicle-side bow-shaped member, so that the fixing system is transferred to the locked position (see below).

[0079] In accordance with a preferred embodiment, for example, when the user operates the release operating part (of the operating element), especially when increasingly pressing the release operating part starting from the locked position (now), the transmission device transfers from the first transmission device position to the second transmission device position. In particular, the transmission element (firstly) transfers from the first non-driven position (again) to the second non-driven position, and further preferably, the retaining lock is (again) held in the released position by adjusting the hook blocking section of the retaining lock. Wherein, the adjusting retaining lock (now) (still) is in the extended position, and the hook is brought to the first position by the pre-tensioned first and / or first / second spring, so that the fixing system (again) transfers to the installed position.

[0080] In accordance with a preferred embodiment, for example, when the user operates the release operating part (of the operating element) starting from the installed position, especially when increasingly pressing the release operating part, the transmission device transfers from the second transmission device position to the third transmission device position. In particular, the transmission element transfers from the second non-driven position to the driven position, and further preferably, the retaining lock (still) is in the released position, and the adjusting retaining lock is driven to the retracted position. Wherein, the hook (still) is in the first position, so that the fixing system transfers to the adjustment position (see below).

[0081] In accordance with a preferred embodiment, for example, when the user no longer operates the release operating part (of the operating element) starting from the adjustment position, especially when (slowly or suddenly) releasing the release operating part, the fixing system (again) transfers to the installed position.

[0082] In another embodiment, the fixing section of the operating element has a through hole or a slit on its outer side. Depending on the position of the movable section relative to the fixing section, a color mark arranged on the movable section can be seen in the through hole or the slit to display the current position of the hook.

[0083] The operating element can be (directly) arranged on at least one of the first section and the second section, or arranged away from the first section and the second section.

[0084] The detecting device (in particular a sensor) of the fixing system is preferably adapted to detect the position of the transfer device, preferably to hold the position of the locking element and / or the transfer element. The detecting device may include a switch that can be switched between a first switch position and a second switch position. The switching of the transfer device from the second transfer device position to the first transfer device position preferably holds the switching of the locking element from the release position to the locking position and / or the switching of the transfer element from the second non-driven position to the first non-driven position, which may be associated with the switching of the switch from the second switch position to the first switch position (accompanied by the transfer of the hook to the second position), and / or the switching of the transfer device from the first transfer device position to the second transfer device position, preferably the switching of the locking element from the locking position to the release position and / or the switching of the transfer element from the first non-driven position to the second non-driven position, which may be associated with the switching of the switch from the first switch position to the second switch position (accompanied by the transfer of the hook to the first position).

[0085] The switch of the detecting device can be pre-tensioned into one of the two switch positions, preferably in the direction of the first switch position.

[0086] Preferably, the switch of the detecting device includes a button, in particular a button arranged to be pressed in or depressed. The extended position of the button is associated with the first switch position, and the depressed position of the button is associated with the second switch position (in this second switch position, the button can sink or be embedded further into the switch housing than in the extended position), and / or includes a lever that is arranged in an inclined position relative to the longitudinal direction of the fixing system in the first switch position and is adapted to be contacted by the detection section of the transfer device, in particular the transfer element, in order to switch the switch from the first switch position to the second switch position, so as to transfer the button from the extended position to the depressed position. The lever moves to a position extending along the longitudinal direction and / or transversely to the longitudinal direction. The lever can preferably be moved back to the inclined position by a return spring, in particular a switch spring, in such a way that the return spring, in particular the switch spring, transfers the button from the depressed position to the extended position (so that the button pushes the lever in the direction of the inclined position and the switch as a whole is pre-tensioned in the direction of the first switch position).

[0087] In this way, in particular, it is possible to ensure by simple means that the switch (of the detection device) detects the locked position of the retaining lock (and thus the second position of the hook) only when the locked position of the retaining lock (and thus the second position of the hook) actually exists (since the transmission element must then be in the first non-driven position, so that the lever is not set in a position extending in the longitudinal direction or transversely to the longitudinal direction, and the button is not pressed in, while the switch moves to the second switch position not only in the second non-driven position of the transmission element but also in the driven position of the transmission element).

[0088] Preferably, the transmission device, in particular the detection section of the transmission element, and the detection device - in particular the sensor - are arranged between the proximal ends of the adjusting lock and the second section (and / or, according to the embodiment, between the adjusting lock and the hook).

[0089] According to the embodiment, seen from the hook, the detection device is placed behind the adjusting lock.

[0090] Preferably, the detection section of the transmission device, in particular the transmission element, has regions with different electrical conductivities, where preferably at least one first region is made of metal and / or the second region is made of plastic.

[0091] Preferably, the detection device includes electrical components, in particular an electrical sensor. It can be provided that the detection device is not connected to a mechanical display device (mechanical signal device) for displaying the position of the hook, and / or the detection device is connected to an electrical display device (electrical signal device) for displaying the position of the hook. The electrical detection of the hook position has the advantage that the information thus determined can be used flexibly, for example in order to control (preferably electrical) display devices (signal devices), and / or in order to allow or not allow the fixing system and / or the base for the child seat and / or other settings of the child seat. In particular, it is also possible to easily implement a display device (signal device) that displays information related to the positions of a plurality of, in particular two, hooks. The display device (signal device) can emit signals indicating the hook position, for example optically or acoustically.

[0092] Preferably, the detection device - in particular the sensor - of the fixing system is configured as an electrical conductivity sensor and / or a resistance measuring device, in particular in order to detect the regions with different electrical conductivities of the detection section.

[0093] A change in the detection of the locked position of the retaining lock (if possible, the switching of the switch (of the detection device) between the first switch position and the second switch position) can be associated with opening or closing a circuit.

[0094] The detection device, in particular the sensor, and if possible the switch can be connected to other components by an electrical connection, in particular by an electrical cable.

[0095] The information about whether the detection device detects the locked position of the retaining locking element (if possible, whether the switch is in the first switch position or in the second switch position) can be used to control other devices of the child seat or the base for the child seat. Examples are:

[0096] The child seat or the base for a child seat may comprise a (possibly optical or acoustic) signalling device which emits a signal indicating the fastening state of the child seat or the base for a child seat on the motor vehicle seat, depending on whether the retaining locking element is detected in the locked position by the detection device.

[0097] - The child seat or the base for a child seat can alternatively or additionally include means, in particular active protection means, such as a gas-filled airbag, or means for tightening the seat belt more strongly (such as a seat belt system of a child seat) or similar means, the use of which is only permitted if the detection device detects that the locking element is held in the locked position.

[0098] The fastening system (as a whole) can preferably be brought into the following positions:

[0099] an adjustment position, in particular the adjustment position already described above, in which the hook is in the first position, the transmission device is in the third transmission device position, in particular the locking element is kept in the release position, and the transmission element is in the drive position, wherein the adjustment locking element is in the retracted position, the operating element is operated (in particular the user operates the release operating part, in particular (continuously) presses the release operating part and / or keeps the release operating part pressed), and the switch of the detection device is in the second switch position, wherein the fastening system and therefore the child seat or the base for the child seat is not fastened to the motor vehicle seat, so that the length of the fastening system is (freely) adjustable (between a minimum length and a maximum length), and / or

[0100] - a locked position, in particular the locked position already described above, in which the hook is in the second position, the transmission device is in the first transmission device position, in particular the locking element is kept in the locked position, and the transmission element is in the first non-actuated position, wherein the adjustment locking element is in the extended position, the operating element is not operated (in particular the user does not operate the release operating part, in particular does not (increasingly) press the release operating part and / or remains pressed), and the switch of the detection device is in the first switch position, so that the fixing system and therefore the child seat or the base for a child seat are fixed to the motor vehicle seat, wherein the length of the fixing system can only be reduced (in particular when a force that repels the first section and the second section from each other acts on the first section or the child seat or the base for a child seat), and / or

[0101] - The installation position, in particular the installation position described above, in which the hook is in the first position, the transfer device is in the second transfer device position, in particular the retaining lock is in the released position, and the transfer element is in the second non-driven position, wherein the adjustment lock is in the extended position, the operating element is not operated (in particular the user does not operate the release operating part, in particular does not (increasingly) press the release operating part and / or keep the release operating part pressed), and the switch of the detection device is in the second switch position, wherein the fixing system and thus the child seat or the base for the child seat are not fixed to the vehicle seat, such that the length of the fixing system is changeable or unchangeable with further limitation, and / or

[0102] - The intermediate position, when the fixing system shortens starting from the locked position and the adjustment lock has not yet reached the next cutout (of the first section) (in particular the hook is in the second position, the retaining lock is in the locked position, the transfer element is in the first non-driven position, and the adjustment lock is in the retracted position; the operating element is not operated (in particular the user preferably does not operate the release operating part, in particular does not (increasingly) press the release operating part and / or keep the release operating part pressed); and the fixing system and thus the child seat or the base for the child seat are fixed to the vehicle seat), wherein when the first section and the second section are pulled apart from each other, the length of the fixing system can increase slightly (for example by at least 2 mm or at least 4 mm and / or by at most 2 cm or at most 1 cm), in particular until the adjustment lock engages into the previous cutout (of the first section).

[0103] According to an embodiment, the intermediate position can allow a reduction in the length of the fixing system as in the locked position (in particular when a force that pushes the first section and the second section against each other acts on the first section or on the child seat or on the base for the child seat). Since a slight movement in the other direction can be achieved in the intermediate position, it is possible in a simple manner for the user to cause at least one engagement with the previous cutout, which in particular improves user-friendliness or safety.

[0104] Parts made of metal, in particular stampings (which for example include the hook and / or the adjustment lock and / or the retaining lock) can have different thicknesses and hereby have thin regions in order to enable smaller holes to be punched out. The thin regions can be produced from regions of normal thickness by applying a high pressure (for example by hammering).

[0105] The above task is solved in particular by a child seat or a base for a child seat, which child seat or base for a child seat comprises at least one fixing system as described above, preferably at least two or exactly two - in particular arranged side by side - fixing systems as described above, said fixing system being in particular for fixing the child seat or the base for a child seat to a motor vehicle seat, said fixing system being in particular compatible with Isofix anchors or anchors conforming to the ISO 13216 standard or the UN ECE R 145 standard.

[0106] Furthermore, the above task is solved by a method for detecting the position of the hook of the fixing system as described above and / or of the child seat or base, wherein a detection device (which in particular comprises a sensor) detects whether the hook is in a first position or a second position, wherein the detection device is configured for indirectly (not directly) detecting the respective position, and / or the detection device - in particular the sensor - has a spacing relative to the hook, i.e. in particular has a spacing relative to the hook both in the first position of the hook and in the second position of the hook.

[0107] Other embodiments result from the dependent claims. Description of the Drawings

[0108] The present invention will be described below with the aid of embodiments, which are explained in more detail with the aid of the drawings. Here:

[0109] Figure 1a A child seat with a fixing system according to the invention is shown;

[0110] Figure 1b A child seat according to Figure 1a is shown on a base for a child seat with a fixing system;

[0111] Figure 1c A base for a child seat with a fixing system is shown;

[0112] Figure 2 A base for a child seat is shown, which has a lower side for placement on the seating surface of a motor vehicle seat;

[0113] Figure 3 A second section of the fixing system according to the invention is shown, which has an operating element arranged on the side of the second section, wherein the release operation part is not operated;

[0114] Figure 4 A diagram similar to Figure 3 is shown, wherein the release operation part has been operated;

[0115] Figure 5 A diagram is shown in connection with Figure 3The corresponding illustration, but now the internal structure of the unoperated operating element can be seen;

[0116] Figure 6 Shows corresponding to Figure 4 The corresponding illustration, but now the internal structure of the operated operating element can be seen;

[0117] Figure 7 Shows a fixing system having a first section and a second section;

[0118] Figure 8 Shows a fixing system having only half of the first section;

[0119] Figure 9 Shows an exploded view of the second section of the fixing system;

[0120] Figure 10 Shows an illustration of the entire fixing system, with enlarged views of different sections of the adjustment locking member and the transmission element;

[0121] Figure 11 Shows half of the second section of the fixing system, where the adjustment locking member is in the adjustment position;

[0122] Figure 12 Shows half of the second section of the fixing system, where the adjustment locking member is in the installation position;

[0123] Figure 13 Shows half of the second section of the fixing system, where the adjustment locking member is in the locked position;

[0124] Figure 14a Shows half of the second section of the fixing system, where the adjustment locking member is in the adjustment position according to Figure 11 , and the detection device specifically includes a sensor configured as a switch;

[0125] Figure 14b Shows according to Figure 14a An enlarged view of the switch of the detection device, and the switch is in the second switch position;

[0126] Figure 15a Shows half of the second section of the fixing system, where the adjustment locking member is in the installation position according to Figure 12 , and the detection device specifically includes a sensor configured as a switch;

[0127] Figure 15b Shows according to Figure 15a An enlarged view of the switch of the detection device, and the switch is in the second switch position;

[0128] Figure 16a Shows half of the second section of the fixing system, where the adjustment locking member is in accordance withFigure 13 a locking position, the detecting device specifically includes a sensor configured as a switch;

[0129] Figure 16b showing according to Figure 16a an enlarged view of the switch of the detecting device according to

[0130] Figure 17a showing the schematic interaction of the components of the fixing system, wherein the switch of the detecting device is in the first switch position;

[0131] Figure 17b showing the schematic interaction of the components of the fixing system, wherein the switch of the detecting device is in the second switch position. Detailed implementation mode

[0132] In the following description of the drawings, the same reference numerals are used for the same and identically acting components.

[0133] Figure 1a showing a child seat 10 with a fixing system 100 according to the invention.

[0134] Figure 1b showing the child seat 10 on a base 11 for a child seat with a fixing system 100.

[0135] Figure 1c showing a base 11 for a child seat with a fixing system 100.

[0136] Figure 2 showing a base 11 for a child seat, which has a lower side 12 for placement on the seating surface of a motor vehicle seat and has a rear side 13, which is arranged to point in the direction of the backrest of the motor vehicle seat. Two first sections 110 of the fixing system according to the invention are schematically shown integrally formed with the base 11 for a child seat. The two first sections 110 end flush with the lower side 12 of the base 11 for a child seat downward. They do not project beyond the rear side 13 backward either.

[0137] Figure 3Shows a second section 120 of the fixing system, which has a proximal end 121 constructed as an end cap and a distal end 122. Similarly, an operating element 230 is shown on the side of the second section 120, which has a fixed section 231, a movable section 232 and a release operating part 234. The fixed section 231 has a through hole (not numbered) on its outer side. Depending on the position of the movable section 232 relative to the fixed section 231, a color mark (not shown) arranged on the movable section 232 can be seen in the through hole to indicate the current position of the hook 130 shown here in its second position. The release operating part 234 is not operated, and the movable section 232 is in its initial position. The hook 130 is located at the distal end 122 of the second section 120 and can be switched between a first position and a second position, as Figure 3 already shown. In the second position, the hook encloses a notch (not numbered) at the distal end 122 of the second section 120.

[0138] In Figure 4 it is shown the same elements as in Figure 3 . However, differently, the release operating part 234 has been operated and the movable section 232 is in the pressed-in position. The hook 130 is in its first position, so that the operating section 134 of the hook can be seen.

[0139] Figure 5 Corresponds to Figure 3 while Figure 6 corresponds to Figure 4 . However, now the internal structure of the operating element 230 can be seen separately: it can be seen that the release operating part 234 is rotatably supported about an axis (not numbered). Operating the release operating part against the force of a spring (not shown) causes one end of a holding device to pivot downwards and allows the movable section 232 to be pressed in the direction of the proximal end 121. The pressing-in of the movable section 232 is also carried out against the force of a spring (likewise not shown) and causes the hook 130 to be transferred to the first position, as will be explained in detail later.

[0140] In Figure 7 it is shown the fixing system 100 according to the invention, which has a first section 110 and a second section 120. The first section 110 has a plurality of cutouts 111 on its lower side, which are shown here as through holes. On the side facing the operating element 230 (not shown here), the first section 110 also has lateral guide slits 112. A first pin 236 and a second pin 237 extend through the lateral guide slits, and the first pin and the second pin are arranged for connection with the operating element 230. The fixing system 100 is in its maximum pull-out.

[0141] Figure 8The fixing system 100 is shown, and for reasons of understanding, only half of it is shown here in the first section 110. The fixing system 100 is shown here as being relatively greatly retracted, and it can be seen that the first pin 236 is firmly connected to the second section 120. In addition, it can now be seen that the second section has an oblong hole 127 through which the second pin 237 extends.

[0142] Figure 9 As can be seen from the exploded view in , the second section 120 includes a first half 120a and a second half 120b as well as an end cap 120c. And in addition, it can be seen that the hook 130 together with the first / second spring 131, the transmission element 160 together with the retaining lock 138, the first pin 236, the adjustment lock 200, and the oblong hole 127.

[0143] Figure 10 A diagram of the entire fixing system 100 according to the present invention is shown again, which has a first section 110 and a second section 120. It can be seen that the hook 130 is supported on the first protrusion 123 of the second section in the shown first position. The retaining lock 138 is in the release position and is connected to the transmission element 160. The third protrusion 125 connects the two halves 120a and 120b of the second section 120 and gives the second section 120 more stability. The third protrusion 125 of the second section 120 improves the mechanical stability of the second section, and in addition, it can form a second guiding portion 102 together with the empty portion 166 of the transmission element 160 as a side effect.

[0144] In the enlarged view of the section of the adjustment lock 200 and the transmission element 160 shown below, other details can be seen: The adjustment lock 200 has a locking section 201, which is in a wedge-shaped configuration. As shown, the first acting section 202 can cooperate with the locking blocking section 162 to prevent the adjustment lock 200 from being transferred from the shown extended position to the retracted position, in which the locking section 201 engages with one of the empty portions 111 of the first section 110. The transmission element 160 has a support section 165 relative to the locking blocking section 162, and the transmission element can be supported on the second section 120 by using this support section.

[0145] The second acting section 203 of the adjustment lock 200 is opposite to the driving section 161 of the transmission element 160 and is arranged to cooperate with this driving section so as to transfer the adjustment lock 200 from the extended position to the retracted position. However, in the shown position of the transmission element 160, the driving section 161 and the second acting section 203 are spaced apart from each other.

[0146] There is a free space 204 between the first acting section 202 and the second acting section 203, and when the transfer element 160 is in the driving position, the locking blocking section 162 is located in this free space. On one side of the locking section 201 facing the proximal end 121, there is a third acting section 208, which is arranged to cooperate with the edge of the cutout 111 engaged by the adjustment lock 200 so as to push the adjustment lock 200 in the direction of the retracted position.

[0147] The adjustment lock 200 is pivotally movable about a second axis 206, and the adjustment lock is supported at the second axis by a second support section 207. Two third springs 205 (one of the two third springs is a helical torsion spring and the other is a tension spring) tension the adjustment lock 200 towards the extended position. The third spring 205 constructed as a helical torsion spring is supported at one end on the first lock 200 and at the other end on the fourth protrusion 126 of the second section 120.

[0148] The third spring 205 constructed as a tension spring is supported at one end on the adjustment lock 200 and at the other end on the second section 120. It can be seen that the support point of the third spring 205 constructed as a tension spring is constructed thinner than the rest of the adjustment lock 200. In the shown extended position, the adjustment lock 200 is supported on the fourth protrusion 126.

[0149] Figure 11 The second section 120 of the fixing system 100 according to the invention is shown again. At the distal end 122, a hook 130 with a locking section 135 is arranged, and the hook 130 is rotatably supported about a first axis 132 by a first support section 133. The first / second spring 131 is fixed at a first end 131a to the hook 130, more precisely approximately through the first support section 133, and at a second end 131b to one arm of the L-shaped holding lock 138.

[0150] The holding lock 138 can move together with the transfer element 160, and the transfer element particularly has a driving section 161 and a detection section 164. In the shown adjustment position of the fixing system 100 according to the invention, the hook 130 is in its first position (open), the holding lock 138 is in its release position, the transfer element 160 is in the driving position, the adjustment lock 200 is in the retracted position, and the (not shown) operating element 230 has been operated. Therefore, the child seat 10 connected to the fixing system 100 or the base 11 for the child seat connected to the fixing system 100 is not fixed to the vehicle seat 1, and the length of the fixing system 100 can be freely adjusted between the minimum pull-out amount and the maximum pull-out amount. The detection device 180 is schematically shown (also seeFigure 13 ).

[0151] Figure 12 shows the same components as Figure 11 , however, the fixing system 100 according to the invention is now in the installed position. In addition, the hook 130 is in the first position (open), while the retaining lock 138 is in the released position. However, the transfer element 160 is now in the second non-driven position, and the adjustment lock 200 is in the extended position. The operating element 230 (not shown) is not operated. The fixing system 100 is not fixed to the motor vehicle seat 1, and the length of the fixing system 100 cannot be changed because the locking blocking section 162 of the transfer element 160 blocks the adjustment lock 200 at the first acting section 201 and holds it in the extended position.

[0152] Figure 13 shows the components already shown in Figure 11 and Figure 12 , however, the fixing system 100 according to the invention is now in the locked position. Now the hook 130 is in the second position, the retaining lock 138 is in the locked position, and the transfer element 160 is in the first non-driven position. The adjustment lock 200 is in the extended position, and the operating element 230 (not shown) is not operated. The fixing system 100 and, if possible, the child seat 10 connected thereto or the base 11 for the child seat connected thereto are fixed to the motor vehicle seat 1, and the length of the fixing system 100 cannot be increased, but can only be reduced when a force acting to displace the first section 110 and the second section 120 relative to each other is applied to the first section 110 or the child seat 10 or the base 11 for the child seat. It can be seen that the detection device 180 is now no longer opposite the detection section 164, so that a distinction can be made between the locked position and the released position of the retaining lock 138 (and thus between the first position and the second position of the hook 130).

[0153] Figure 14a and the associated enlarged view according to Figure 14b basically corresponds to Figure 11 , wherein the fixing system is in the adjustment position, and the detection device specifically includes a sensor 181 configured as a switch 182, which can be seen better in the enlarged view. The switch 182 has a housing 183 and is in the second switch position. The lever 185 is at least substantially oriented in the longitudinal direction and thus cannot be seen well.

[0154] Figure 15a and the associated Figure 15b enlarged view basically corresponds to Figure 12 , wherein the fixing system is in the installed position. Figure 15a and Figure 15b withFigure 14a and Figure 14b again shows specifically the sensor 181 configured as the switch 182. It can be seen that the detection section still presses down the lever 185 of the switch 182, causing the (still invisible) button 184 to sink into the housing, and the switch (still) being in the second switch position.

[0155] Figure 16a and the related enlarged view according to Figure 16b basically corresponds to Figure 13 , where the fixing system is in the locked position. Figure 16a and Figure 16b with Figures 14a to 15b again shows the sensor 181 preferably configured as the switch 182. Now the detection section 164 moves so much in the direction of the distal end 122 of the second section 120 that the (not shown) switch spring displaces the now visible button 184 into the extended position, whereby the lever 185 is transferred to the tilted position. Accordingly, the switch of the sensor 181 is in the first switch position.

[0156] Figure 17a and Figure 17b again very schematically shows a basic feasible solution for the interaction of the components of the fixing system 100, namely a basic feasible solution for the interaction of the second section 120, in particular the hook 130, the transmission element 160 (in particular the retaining lock 138), and the sensor 181 (in particular the button 184, the lever 185, and the return spring 186). Figure 17a Shows the switch 182 in the first switch position and spaced apart from the detection section 164, that is, where the button 184 is in the extended position, the lever 185 is in the tilted position, and the switch spring 186 (exemplarily configured as a compression spring here) is relaxed. Figure 17b Shows the switch 182 in the second switch position, that is, where the lever 185 is displaced by the detection section 164 into the (here: straight position transverse to the longitudinal direction), and the lever presses down the button 184 against the force of the switch spring 186.

[0157] In some figures, due to technical reasons, the springs are shown partially not entirely accurately.

[0158] It should be noted at this point that all the components described above, individually and in any combination, especially the details shown in the drawings, are claimed as an important part of the present invention. Modifications thereof are well known to those skilled in the art.

[0159] Furthermore, it should be noted that the scope of protection is sought to be as broad as possible. In this regard, the disclosure contained in the claims can also be clarified by features described in combination with additional features (even if these additional features do not necessarily have to be incorporated). It is expressly stated that parentheses and the term "in particular" should indicate the optionality of a feature in the respective context (which, conversely, should not mean that a feature is to be regarded as mandatory in the respective context without such an express indication). The term "element" preferably should identify a correspondingly associated structure, which in turn can be connected to at least one other structure (to form an integral and / or non-movable structure, if possible), or can be demarcated from all other structures.

[0160] List of reference numerals

[0161] 1 Motor vehicle seat

[0162] 2 Motor vehicle seat backrest

[0163] 3 Motor vehicle seat cushion

[0164] 4 Bow-shaped member

[0165] 10 Child seat

[0166] 11 Base for child seat

[0167] 12 Lower side

[0168] 13 Rear side

[0169] 100 Fixing system

[0170] 101 First guiding part

[0171] 102 Second guiding part

[0172] 110 First section

[0173] 111 Empty part

[0174] 112 (Lateral) guiding seam

[0175] 120 Second section

[0176] 120a, 120b First half and second half

[0177] 120c End cap

[0178] 121 Proximal end

[0179] 122 Distal end

[0180] 123 First protrusion

[0181] 124 Second protrusion

[0182] 125th third protruding part

[0183] 126th fourth protruding part

[0184] 127slotted hole

[0185] 130hook

[0186] 131first / second spring

[0187] 131a, 131b first end and second end of the first / second spring

[0188] 132first axis

[0189] 133first support section

[0190] 134operating section

[0191] 135locking section

[0192] 135a, 135b legs

[0193] 136engaging section

[0194] 137hook blocking section

[0195] 138holding lock

[0196] 139locking section

[0197] 140first abutting section of the holding lock

[0198] 160transmission element

[0199] 161driving section

[0200] 162locking blocking section

[0201] 163second abutting section of the transmission element

[0202] 164detection section

[0203] 165support section

[0204] 166void

[0205] 180detection device

[0206] 181sensor

[0207] 182switch

[0208] 183housing

[0209] 184button

[0210] 185lever

[0211] 186 Reset spring (switch spring)

[0212] 200 Adjustment locking member

[0213] 201 Locking section

[0214] 202 First acting section

[0215] 203 Second acting section

[0216] 204 Free space

[0217] 205 Third spring

[0218] 206 Second axis

[0219] 207 Second support section

[0220] 208 Third acting section

[0221] 230 Operating element

[0222] 231 Fixed section

[0223] 232 Movable section

[0224] 233 Holding device

[0225] 234 Release operation part

[0226] 235 Fourth spring

[0227] 236 First pin

[0228] 237 Second pin

Claims

1. A fixing system (100) for fixing a child seat (10) and / or a base (11) for a child seat to a motor vehicle seat (1), the fixing system comprising: A hook (130) adapted to surround an arcuate member (4), in particular an Isofix anchor, provided on the motor vehicle side in order to couple the fixing system (100) to the motor vehicle seat (1), wherein the hook (130) is switchable between a first position and a second position, in the first position the hook does not couple the fixing system (100) to the motor vehicle seat (1), and in the second position the hook couples the fixing system (100) to the motor vehicle seat (1); and A preferably electrical detection device (180), in particular comprising a sensor (181), adapted to detect whether the hook (130) is in the first position or the second position, wherein the detection device (180) is configured for indirectly detecting the respective position, and / or the detection device (180), in particular the sensor (181), has a spacing relative to the hook (130), i.e., a spacing relative to the hook not only in the first position of the hook but also in the second position of the hook.

2. The fixing system according to claim 1, wherein A preferably rigid transmission device, which is movable in particular relative to the hook (130), is provided, which transmission device is in contact with the hook (130) in at least one or exactly one position and can assume at least two transmission device positions, in particular a first transmission device position, a second transmission device position and / or a third transmission device position, depending on the position of the hook (130), wherein the detection device (180) is configured to directly detect the respective transmission device position.

3. The fixing system according to claim 1, characterized in that, A retaining lock (138) is provided, which can be switched between a locked position and a released position, in the locked position the retaining lock (138) holds the hook (130) in its second position, and in the released position the retaining lock (138) does not hold the hook (130) in its second position, wherein the retaining lock (138) is preferably a component of the transmission device according to claim 2.

4. The fixing system according to any one of the preceding claims, characterized in that, The minimum spacing between the detection device (180) or the sensor (181) and the hook (130) is at least 1 cm, preferably at least 3 cm, further preferably at least 5 cm or at least 10 cm.

5. The fixing system according to any one of the preceding claims, characterized in that The fixing system (100) is of telescopic construction, wherein a first section (110) and a second section (120) are provided, which can move relative to one another to adjust the length of the fixing system, wherein an adjustment lock (200) is preferably provided in or on the second section (120), which can be configured relative to the first section (110) and the second section (120) such that the length adjustment of the fixing system (100) can be selectively effected and / or can be restricted and / or cannot be effected, i) The first section (110) is preferably - if possible detachably - fixed or fixable to the child seat (10) or the base (11) for the child seat, and / or is integrally formed with the child seat (10) or the base (11) at least in part of the section, and / or the second section is arranged for - if possible detachably - fixing to the motor vehicle seat (1), and / or ii) It is provided with a transmission element (160), preferably as part of the transmission device according to claim 2, which is movably - in particular longitudinally movably - arranged in or on the second section (120) so as to be switchable between at least a first non-driven position, a second non-driven position and a driven position, wherein the transmission element (160) has a drive section (161), which is adapted to selectively cooperate with the - in particular second - acting section (203) of the adjustment locking member (200) so as to transfer the adjustment locking member from the extended position to the retracted position, and / or The transmission element has a locking blocking section (162), which is adapted to selectively cooperate with the - in particular first - acting section (202) of the adjustment locking member (200) to prevent the adjustment locking member from being transferred from the extended position to the retracted position, and / or The transmission element is operatively connected to the holding locking member (138) - in particular the holding locking member (138) according to claim 3 - such that the movement of the transmission element (160) causes the holding locking member (138) to switch between the release position and / or the locking position.

6. The fixing system according to any one of the preceding claims, characterized in that, The second section (120) of the fixing system (100) has a proximal end (121) and a distal end (122), wherein a hook (130) is arranged at the distal end (122).

7. The fixing system according to any one of the preceding claims, characterized in that, The transmission device, in particular the transmission device according to claim 2, in particular the transmission element (160) according to claim 5, has a detection section (164), which is adapted to be detected by a detection device (180) - in particular a sensor (181) - to determine the position of the transmission device, in particular the transmission element (160), wherein the detection section (164) and the detection device (180) - in particular the sensor (181) - are preferably adjacent to each other.

8. The fixing system according to any one of the preceding claims, characterized in that, The detection device (180) - in particular the sensor (181) - is adapted to detect the position of the transmission device - preferably the holding locking member (138) and / or the transmission element (160) - wherein The detection device (180) includes a switch (182), which can be switched between a first switch position and a second switch position, wherein the switching of the transmission device from the second transmission device position to the first transmission device position, preferably the switching of the holding locking member (138) from the release position to the locking position and / or the switching of the transmission element (160) from the second non-driven position to the first non-driven position is associated with the switching of the switch (182) from the second switch position to the first switch position, and / or The switching of the transfer device from the first transfer device position to the second transfer device position, preferably the switching of the retaining element (138) from the locked position to the released position and / or the switching of the transfer element (160) from the first non-driven position to the second non-driven position is associated with the switching of the switch (182) from the first switch position to the second switch position.

9. The fixing system according to any one of the preceding claims, in particular the fixing system according to claim 7, characterized in that, The switch (182) of the detection device (180) includes a button (184), in particular a push button (184) designed to be pressed in or depressed, wherein the extended position of the button (184) is associated with the first switch position, and the depressed position of the button (184) is associated with the second switch position, and / or The switch of the detection device includes a lever (185) which is arranged in an inclined position relative to the longitudinal direction of the fixed system (100) in the first switch position and is adapted to be contacted by a detection section (164) of the transfer device, in particular the transfer element (160), in order to switch the switch (182) from the first switch position to the second switch position, so as to transfer the button (184) from the extended position to the depressed position, wherein the lever (185) is moved into a position extending along the longitudinal direction and / or transversely to the longitudinal direction, wherein The lever (185) can preferably be moved back to the inclined position by a return spring (186), in particular a switch spring (186), in such a way that the return spring (186), in particular the switch spring (186), transfers the button from the depressed position to the extended position.

10. The fixing system according to any one of the preceding claims, characterized in that, The detection section (164) of the transfer device, in particular the transfer element (160), and the detection device, in particular the sensor (181), are arranged between the adjustment locking element (200) and the proximal end (121) of the second section (120).

11. The fixing system according to any one of the preceding claims, characterized in that, The detection section (164) of the transfer device, in particular the transfer element (160), has regions with different electrical conductivities, wherein preferably at least one first region is made of metal and / or the second region is made of plastic.

12. The fixing system according to any one of the preceding claims, characterized in that, The detection device (180) of the fixed system (100), in particular the sensor (181), is designed as a conductivity sensor and / or a resistance measuring device, in particular for detecting regions with different electrical conductivities of the detection section (164).

13. A child seat (10) or a base (11) for a child seat, comprising at least one fixed system (100) according to any one of the preceding claims, preferably at least two or exactly two, in particular arranged side by side, fixed systems (100) according to any one of the preceding claims, the fixed system being in particular for fixing the child seat (10) or the base (11) for a child seat to a motor vehicle seat (1), the fixed system being in particular compatible with Isofix anchorages or anchorages conforming to the ISO 13216 standard or the UN ECE R 145 standard.

14. A method for detecting the position of the hook (130) of the fixing system (100) according to any one of claims 1 to 12 and / or the position of the hook of the child seat (10) or the base (11) according to claim 13, wherein, A detection device (180), in particular a detection device including a sensor (181), detects whether the hook (130) is in a first position or a second position, wherein the detection device (180) is configured to indirectly detect the respective position, and / or the detection device (180), in particular the sensor (181), has a spacing relative to the hook (130), i.e., has a spacing relative to the hook not only in the first position of the hook but also in the second position of the hook.

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