Child-holding device and system for assembling same

EP4801779A1Pending Publication Date: 2026-09-09CYBEX GMBH
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
EP2024795165
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-02
Filing Date
2024-10-24
Publication Date
2026-09-09

AI Technical Summary

Technical Problem

The assembly process of children's recording facilities, such as child seats for motor vehicle seats, is in need of improvement to make it easier and more secure while maintaining product integrity.

Method used

A procedure for assembling a child recording facility involving at least two main components that are initially connected in an installation relative position and then moved to an assembly relative position, where they are securely connected, making it difficult to revert to the installation position.

Benefits of technology

This approach simplifies the assembly process while ensuring the security and stability of the child recording facility, preventing accidental disconnection and enhancing safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure EP2024080027_08052025_PF_FP_ABST
    Figure EP2024080027_08052025_PF_FP_ABST
Patent Text Reader

Abstract

A method for assembling a child-holding device, in particular a child seat for arrangement on a motor vehicle seat, comprising at least a first and a second main component and, optionally, a third main component, wherein the first and the second main component are brought into a predetermined installation position relative to each other and, in a first connecting operation, are connected to each other in the installation position relative to each other, wherein the first and the second main component, in a second connecting operation, are then brought into an assembly position relative to each other, which differs from the installation position, and are connected to each other in this assembly position in such a way that the installation position relative to each other can no longer be reached or can be reached only with difficulty.
Need to check novelty before this filing date? Find Prior Art

Description

[0001] Child reception facility and system for assembling such a

[0002] Description

[0003] The invention relates to a child restraint device, in particular a child seat for attachment to a motor vehicle seat, and to a system and method for assembling a child restraint device. It is generally known to construct child restraint devices, in particular child seats for attachment to a motor vehicle seat, from several main components. In a child seat, these comprise, in particular, a back section, a seat and / or leg section, and (optionally) a base component on which the back, seat, and / or leg sections are mounted. Furthermore, it is generally known to design such main components so that they are movable relative to one another, in particular pivotable. For example, a back section can be pivotable relative to a seat and / or leg section.Alternatively or additionally, a combination of back section with seat and / or leg section can be designed to be pivotable relative to a base component.

[0004] The manufacture (or assembly) of such child restraint systems, particularly child seats, is considered to be in need of improvement.

[0005] The object of the invention is therefore to propose a method and a system for assembling a child restraint system, as well as a child restraint system, wherein the production and assembly should be comparatively simple and yet result in a comparatively safe product (child restraint system). Accordingly, the object of the invention is to propose a child restraint system (in particular, a child seat) that can be manufactured (assembled) accordingly safely.

[0006] This object is achieved in particular by a method according to claim 1.

[0007] In particular, the object is achieved (according to a first aspect) by a method for assembling a child restraint device, in particular a child seat for attachment to a motor vehicle seat, comprising at least a first and a second main component (and optionally a third main component), wherein the first and the second main component are brought into a predetermined installation relative position to one another and are connected to one another in the installation relative position (in a first connecting process), wherein the first and second main components are then brought (in a second connecting process) into an assembly relative position deviating from the installation position and are connected in this position in such a way that the installation relative position can no longer be reached (or can only be reached with difficulty).

[0008] One idea is that the first and second main components of the child restraint system are moved from a relative installation position to a relative assembly position and then connected to each other in the relative assembly position in such a way that the relative installation position is no longer accessible or can only be reached with difficulty. This reduces the likelihood that the two main components will be (possibly unintentionally) reconfigured in such a way that they detach from each other again due to (intentional or unintentional) reversible kinematics.

[0009] A main component of a child restraint system is understood to mean, in particular, a component that performs an independent function (e.g., supporting the child's back and / or buttocks and / or legs, or serving as a base or foundation for the entire child restraint system). A (respective) main component can constitute at least 5% by weight, preferably at least 10% by weight, and optionally at least 20% by weight of the entire child restraint system.At least in one (use) configuration of the child restraint system, a (respective) main component may extend over at least 10% or at least 20% or at least 40% of a total height of the child restraint system (in particular if the main component is a back section); and / or over at least 10% or at least 20% or at least 40% of a total length of the child restraint system (in particular if the main component is a back section); and / or over at least 10% or at least 20% or at least 40% of a total width of the child restraint system.

[0010] A connection or a corresponding connection process is understood in particular to mean that the respective (main) components are brought together in such a way that they touch and engage with each other (positively). This does not necessarily exclude, but can exclude, the possibility that the corresponding main components can be removed from each other by non-deforming movement. A connection should preferably be present when the main components can no longer be removed from each other (without deforming them). In this respect, a connection does not necessarily require fastening (although it may require it).

[0011] A fastening is to be understood in particular as meaning that the respective components (main components) are connected to one another in such a way that they cannot be separated from one another or at least not without considerable deformation (which requires a minimum force of at least 10 Newtons or at least 20 or at least 40 Newtons) and / or cannot be separated from one another without causing at least superficial (visible) damage to the connecting structures.

[0012] If a (relative) position (in particular the installation relative position) is no longer reachable, this preferably means that there is a fastening that prevents the corresponding position from being reached (again; without significant deformation, in which connecting structures are at least superficially (visibly) damaged). Difficulty in reaching a (relative) position (installation relative position) is to be understood in particular that a force is required to reach the installation relative position that is at least 1.5 times, preferably at least 2 times, possibly at least 5 times as great as a force required to effect the (previous) connection (fastening) of the assembly relative position, for example a force of at least 10 Newtons or at least 20 Newtons or at least 40 Newtons.Any (minimum) force required to (preliminarily) establish the connection (fastening) may be less than or equal to 9 Newtons or less than or equal to 4 Newtons. The statements in this paragraph also apply accordingly to the (relative) positions below, especially in connection with the second aspect.

[0013] A (relative) position can in particular be a relative angular position and / or a relative position (distance of the respective centers of gravity) to each other.

[0014] The above-mentioned object is alternatively or additionally (according to a second aspect) further achieved by a method, in particular according to the first aspect, for assembling a child restraint device, in particular a child seat for attachment to a motor vehicle seat, comprising at least one (the) first, one (the) second and one (the) third main component, wherein the first, second and third main components are connected to one another, wherein at least one relative position of the first and second main components, which can be assumed when the first and second main components are connected to one another, cannot be assumed or can only be assumed with difficulty when the first and second main components are connected to the third main component.

[0015] One idea behind this second aspect (according to the previous paragraph) is that achieving a (specific) relative position of the first and second main components is (only) possible when they are no longer connected to the third main component or are removed from it. Also, according to the second aspect, it is particularly possible to ensure that reversing a change in position (intentional by the user but undesirable for safety reasons, or entirely unwanted) is less likely or even impossible. This allows assembly of the child restraint system to be achieved safely and easily.According to a third aspect, which can preferably be combined with the first or second aspect, a method for assembling a child restraint device, in particular a child seat, for attachment to a motor vehicle seat is proposed, wherein the child restraint device comprises at least one (the) first and one (the) second main component (and optionally comprises a / the third main component), wherein the first and the second main component are fastened to one another by means of a, in particular irreversible, snap-in connection. A snap-in connection is to be understood in particular as a connection that can be established by movement in one direction, wherein the reciprocal (reverse) movement is not possible or is only possible with considerable difficulty. For example, a force to reverse the movement can be at least 2 times, 5 times, or at least 10 times as great as a force to carry out the original movement (e.g.rotation and / or translation).

[0016] The first main component may form or include a back section. The back section may have a backrest and, if appropriate, side bolsters and / or a headrest.

[0017] The second main component may form or include a buttock and / or leg section. The buttock and / or leg section may include a support for the child's buttocks and / or legs and, if appropriate, side bolsters for lateral support of the buttocks and / or legs.

[0018] The third main component may be a base or base component configured to support one, two, or more, possibly all, of the (further) main components. The third main component may be configured to contact a support (e.g., a motor vehicle seat).

[0019] In total, there may be exactly two or more, or exactly three or more, main components. In other words, the child care facility may have (only) two or (only) three main components.

[0020] At least two of the main components can be pivotable (or exclusively pivotable) and / or displaceable (or exclusively displaceable) relative to each other (in the assembled state). Particularly preferably, at least two of the main components can be pivotable (exclusively) relative to each other (in the assembled state).

[0021] Preferably, at least three of the (or the three) main components are (exclusively) pivotable and / or (exclusively) displaceable relative to one another (in the assembled state). In particular, the first and second main components can be pivotable and / or displaceable relative to one another. Alternatively or additionally, the first and / or second main components can be pivotable and / or displaceable (optionally jointly, in particular only jointly) relative to the third main component. Particularly preferably, the first and second main components are pivotable and / or displaceable jointly (in particular only jointly) and / or only individually (in particular only each individually) relative to the third main component.

[0022] The relative installation position preferably lies within a first (predetermined) relative angle range. Particularly preferably, the relative installation position corresponds to a first relative angle, which is further preferably fixed (in particular in the sense that the first connection process can only be performed at this first relative angle).

[0023] The relative assembly position preferably lies within a (predetermined) second relative angle range (which differs from the first relative angle range). Particularly preferably, the relative assembly position corresponds to a second relative angle, which is preferably fixed (in particular in the sense that the second connection process can only be performed at this second relative angle).

[0024] Preferably, the first and second main components, when connected to the third main component, are pivotable relative to one another over a predetermined relative angle range during use. Alternatively or additionally, the first and second main components, when not connected to the third main component, are pivotable relative to one another over a predetermined relative angle range during non-use. Particularly preferably, the relative angle range during non-use is larger than the relative angle range during use (e.g., at least 1.1 times or at least 1.4 times as large and / or at most 4.0 times as large).This can facilitate handling (e.g., during storage) by allowing a comparatively large relative angle range (when not in use), while still ensuring that the child restraint system can only be adjusted over a (safe) relative angle range (with respect to the first and second main components) during use. The non-use relative angle range can be at least 40° and / or at most 180°. The use relative angle range can be at least 30° and / or at most 180° (or less).

[0025] To connect the first and second main components (particularly for the first connection process), a projection (preferably with an extended end) and a corresponding recess (e.g., a hole) can be provided. In particular, a wing (preferably with an extended end) and a corresponding recess (preferably a corresponding hole) can be provided. The projection (wing) can be aligned with the recess in a first position and / or overlap an edge of the recess in a second position.

[0026] Alternatively or additionally, a projection (preferably with an extended end) and a corresponding recess can be provided for connecting the first and second main components (particularly for the second connection process). Particularly preferably, a pin (preferably with an extended end) and a corresponding recess (preferably a corresponding hole) can be provided, preferably in such a way that the projection can be snapped into the corresponding recess.

[0027] Preferably, the first and second main components are guided toward each other at a respective end prior to the first connection process, preferably at an acute relative angle. Alternatively or additionally, the first and / or second main components are bent during the first and / or second connection process, with the respective bending preferably occurring before and / or in addition to any snap-in process.

[0028] Alternatively or additionally, the first and / or second main component are connected to the third main component via at least one (preferably at least or exactly two) rod(s), wherein further preferably a relative position between the first and second main components with respect to the third main component is first determined and then the respective rod is inserted.

[0029] Alternatively or additionally, the first and / or second main component can be connected to the third main component via at least one detachable connection, in particular a screw connection.

[0030] The above-mentioned object is further achieved (according to a fourth aspect, which corresponds in particular to the first aspect) by a system (in particular for carrying out the above method, preferably according to the first, second and / or third aspect and optionally further aspects) for assembling a child restraint device, in particular a child seat, for attachment to a motor vehicle seat, wherein the system comprises at least a first and a second main component, wherein the first and the second main component can be brought into a predetermined installation relative position to one another and can be connected to one another in the installation relative position and can then be brought into a relative position deviating from the installation position in such a way that the installation relative position can no longer be reached or can only be reached with difficulty.

[0031] Alternatively or additionally, the above object (according to a fifth aspect, corresponding in particular to the second aspect) is achieved in particular by a system (in particular according to the fourth aspect and / or for carrying out the above method according to the first, second and / or third aspect and optionally further developing aspects) for assembling a child restraint device, in particular a child seat for attachment to a motor vehicle seat, wherein the system comprises at least a first, a second and a third main component, wherein the first, second and third main components are connectable to one another, wherein at least one relative position of the first and second main components, which can be assumed when the first and second main components are connected to one another, cannot be assumed or can only be assumed with difficulty when the first and second main components are connected to the third main component.The above-mentioned object is further achieved (according to a sixth aspect, corresponding in particular to the third aspect) in particular by a system (preferably according to the fourth and / or fifth aspect and / or for carrying out the above method according to the first, second and / or third aspect and possibly further aspects) for assembling a child restraint device, in particular a child seat for attachment to a motor vehicle seat, wherein the system comprises at least a first and a second main component, wherein the first and the second main component can be fastened to one another by means of a (in particular irreversible) snap-in connection.

[0032] Further features of the (respective) system can be found in the above and following explanation of the procedure.

[0033] The above-mentioned object is further achieved (according to a seventh aspect) in particular by a child support device, in particular a child seat for attachment to a motor vehicle seat, assembled according to the method according to the first, second and / or third aspect and possibly further aspects and / or with the system according to the fourth, fifth and / or sixth aspect and possibly further aspects.

[0034] The (or a respective) snap-in connection preferably comprises a projection (in particular the one explained above in connection with the second connection process) and a corresponding recess (in particular the one explained above). In particular, the snap connection comprises a pin (preferably with an enlarged end) and a corresponding recess (preferably a corresponding hole). The (respective) projection is preferably a component of the first or the second main component. The (respective) recess is preferably a component of the first or the second main component, with the recess and projection further preferably being formed on different main components. Particularly preferably, the projection and / or recess are an integral part of the (respective) main component by which they are formed.An integral component is understood, in particular, to be a component that is molded or formed (for example, in an injection molding process). An integral component is considered to be present in particular when the component or the corresponding structure is formed by a (integral or monolithic) section of the respective main component that constitutes at least 5 wt.%, possibly at least 10 wt.%, or at least 50 wt.% of the main component.

[0035] Overall, a simple and cost-effective child care facility can be achieved.

[0036] In embodiments, the child restraint device comprises three main components that interact with each other after assembly. The three main components can include a back section (in particular comprising or formed by a backrest), a seat and / or leg section (in particular comprising or formed by a footrest), and a base component (base element).

[0037] Two of the three main components may, if appropriate, be assembled in a first step in a specific configuration or position (installation configuration) (in particular at a predetermined angle to each other, in particular an acute angle, for example between 30° and 60° or between 40° and 50° or at least approximately 45°) or may, if appropriate, only be assembled in this installation configuration (or the predetermined angle).

[0038] In a second step, the two main components can optionally be assembled onto the third main component and can optionally assume another configuration (use configuration) after assembly. In this configuration, the first and second main components are preferably positioned at a different angle to each other, preferably a (comparatively) more obtuse angle.

[0039] After assembly on the third main component, the first and second main components may no longer assume the installation configuration (or the predetermined angle) and may therefore no longer be able to be separated from each other.

[0040] The seat and / or leg section (footrest) and the back section (backrest) can be adjustable in inclination relative to one another after assembly on the base component (the base element), but possibly only within a specific angle range (in particular a range lying between at least 91° and / or at most 160°, preferably at most 145°), which in particular does not include the predetermined acute angle (installation configuration).

[0041] Solvability may only be (re)achievable if the first and second principal components (or at least one of the two) have been removed from the third principal component, i.e. if the second step has been reversed and the predetermined angle has been set.

[0042] The base component (base or base element) may comprise a cavity defined by a bottom surface with two opposite side walls.

[0043] The base component may have a front and a rear end.

[0044] The base component can serve as a support body for the back section (backrest) and / or the buttocks and / or leg section (footrest).

[0045] The base component can be connected (directly or indirectly) to the buttocks and / or leg section or the back section on both side walls via a (respective) stabilization axis (with corresponding stabilization points or stabilization structures, for example, on the respective side walls). In particular, the buttocks and / or leg section and / or back section can rest (directly or indirectly) on a (respective) stabilization axis (and thus rotate).

[0046] The base component can have one (one) rotation point (on each side wall) to which the back section can be (fixedly) attached and around which the back section can rotate. The (respective) rotation point can (each) comprise a back section mount (backrest mount).

[0047] A stabilization axis (or one of the stabilization axes) can be located, in particular, at a front end of the base component (in particular for the back section). Alternatively or additionally, a stabilization axis (in particular one of the stabilization axes or the other stabilization axis) can be located at a rear end of the base component (for the buttocks and / or leg section). The (respective) stabilization axis can, in particular, have a receptacle for a (respective) rod, which can serve as a rotation axis and / or fastening axis for the back section and / or the buttocks and / or leg section.

[0048] The back section (the backrest) can comprise a backrest surface and two side elements and / or form a shell shape.

[0049] The back section may have a front and a rear end.

[0050] The back section can have a rotation strut on the outside of each of the two side elements (particularly in a central area between the front and rear ends).

[0051] The back section may have one (or more) guide groove(s) located one behind the other in an area below the back contact surface.

[0052] The backrest may have a projection (in particular an external pin) at a front end on the outside of each of the two side elements.

[0053] The outer pin can have at least one, preferably two, wings at its outer end.

[0054] The back section can have (two) inner pins (in a central region) of the back contact surface at the front end of the back section. The (respective) inner pin can have one or two wings at its outer end.

[0055] The buttock and / or leg section (footrest) may have a foot support surface (buttock support surface) and two side elements and may form a shell shape.

[0056] The buttock and / or leg section may have a front and a rear end. The buttock and / or leg section may have one (or more) guide grooves arranged one behind the other in an area below the foot or buttock contact surface.

[0057] The buttock and / or leg section can each have an (outer) tenon receptacle (recess) at a front end of the outer side of the two side elements.

[0058] The (outer) tenon receptacle is preferably (each) positively connected to the outer tenons of the back section (preferably).

[0059] The buttock and / or leg section can have two (inner) pin receptacles in a central region of the foot or buttock contact surface at the front end of the buttock and / or leg section. The (inner) pin receptacles are preferably designed as a guide in the longitudinal direction (for guiding the inner pins) and have a widened area at least at one end, whereby an extension of the inner pins can be pushed or pushed.

[0060] Preferred features of the assembly process are further explained below.

[0061] The back section and the buttocks and / or leg sections can be brought together at their respective front ends.

[0062] The back section and the buttocks and / or leg sections can be rotated at an acute angle to each other at their front ends. Upon reaching the predefined (acute) angle, the outer pegs of the back section (with wings) can be positioned positively (particularly from the inside) behind the (outer) peg receptacles of the buttocks and / or leg sections and can be inserted into or guided through them until the wings of the outer pegs protrude on the outside of the back section. The (outer) peg receptacles can now serve as guides for the outer pegs. The outer pegs can rotate in the (outer) peg receptacles.If an angle is enlarged (and / or reduced), the outer tenons can no longer be pulled out of the (outer) tenon receptacles, since the wings no longer fit positively with the (outer) tenon receptacle (in this state, disassembly of the back section and the seat and / or leg section is particularly prevented).

[0063] In a next step, an angle between the back section and the seat and / or leg section can be minimally increased so that the respective inner tenon and its extension (wing) rest on a widened area of ​​one of the guides of the inner tenon holder.

[0064] The inner pins can now be pressed into the widened area in the inner pin receptacle.

[0065] The inner pin holder can now guide the inner pins so that when the angle between the back section and the seat and / or leg section changes (i.e. when the respective outer pin rotates in the respective outer pin holder), the inner pin is guided in the respective guide.

[0066] The guide of the inner pin receptacle is preferably designed, in particular designed in such a length, that the predetermined angle of the installation position (installation configuration, installation relative position) can no longer be reached.

[0067] Subsequently, the angle between the back section and the buttocks and / or leg section can be further increased, in particular in order to be able to attach the buttocks and / or leg section and the back section together to the base component (the base element).

[0068] The (respective) rotation strut of the back section can then be fixed to the (respective) backrest mount of the base component.

[0069] The first rod can then be guided through the (respective) guide groove of the back section and can then be attached to the (respective) holder of the front stabilization axis (e.g. by screws) so that the back section is attached to the base component.

[0070] The buttock and / or leg section can then be rotated in the direction of the rear stabilization axis until the (respective) receptacle of the (respective) rear stabilization axis and the (respective) guide groove of the buttock and / or leg section are aligned so that the second rod can be passed through the (respective) receptacle and the (respective) guide groove and can then be attached to the base component (e.g. by screwing).

[0071] The child restraint system is preferably in a position of use, and the back section and buttocks and / or leg sections can be adjusted in inclination together, whereby the (acute) angle of the installation relative position (installation configuration) can no longer be reached.

[0072] Further features arise from the subclaims.

[0073] The invention is explained in more detail below using an exemplary embodiment. The following shows:

[0074] Fig. 1 is an oblique view of a child support device according to the invention;

[0075] Fig. 2 shows the child restraint device according to Fig. 1 in an exploded view;

[0076] Fig. 3 shows a back section of the child restraint device according to Fig. 1;

[0077] Fig. 4 a buttock and / or leg section of the child restraint device according to Fig. 1;

[0078] Fig. 5 shows the buttock and / or leg section according to Fig. 4 in a view from above;

[0079] Fig. 6 the back section and buttocks and / or leg section in a relative installation position in a side view;

[0080] Fig. 7 shows the position according to Fig. 6 in a view from below; Fig. 8 shows the back section and the buttock and / or leg section in a use configuration in a side view; and

[0081] Fig. 9 the back section and the buttocks and / or leg section in a further (different) usage configuration in a side view.

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

[0083] Fig. 1 shows an oblique view of a child restraint device according to the invention. It comprises, as its main components, a back section 10, a seat and / or leg section 11, and a base component (base element) 12. The back section 10 may have a backrest. The seat and / or leg section may have a seat and / or leg support. The base component 12 may define a support structure for the back section 10 or the seat and / or leg section 11. The base component may, for example, have a carrying handle 13 and / or a support foot (not shown).

[0084] In the exploded view according to Fig. 2, it can be seen that the base component 12 forms a cavity 14 in which the buttock and / or leg section 11 and the back section 12 can be accommodated (in sections). The back section 10 is rotatably connected to the base component 12 via rotation areas (rotation points) 15 (on an inner side of the side walls of the cavity 14).

[0085] Fig. 2 also shows a first rod 16, a second rod 17, a first stabilization area (stabilization point) 18, and a second stabilization area (stabilization point) 19. Their function will be explained further below.

[0086] Fig. 3 shows the back section 10 in further detail. The back section 10 comprises (on its sides) a respective rotation strut 20 and a (respective) guide groove 21. Furthermore, the back section 10 laterally comprises (in particular at a lower or front end) a (respective) outer pin 22 with one or two wings.

[0087] Furthermore, the back section 10 comprises an inner pin 23 (with a respective extension, in particular a respective wing) at a front end in a respective side region. According to Fig. 4, the seat and / or leg section 11 comprises a (respective) outer pin receptacle 24 on an inner wall (inner side wall) and (cf. Fig. 5) a (respective) inner pin receptacle 25 in the respective lateral region (of a base section of the seat and / or leg section 11).

[0088] A possible assembly is explained below using the figures.

[0089] First, the back section 10 and the buttocks and / or leg section 11 can be guided toward each other at one of their respective ends. The back section 10 and the buttocks and / or leg section 11 are rotated at an acute angle to each other at their mutually facing ends, so that a relative installation position (installation configuration) is assumed, see Fig. 6 and Fig. 7.

[0090] When the predefined (acute) angle is reached, the outer pins 22 of the back section 10 (with wings) are positioned in a form-fitting manner (from the inside) behind the outer pin receptacles 24 of the buttocks and / or leg section 11 and can be inserted into or passed through them until the (respective) wing of the outer pins 22 protrudes on an outer side of the back section 10.

[0091] The (respective) outer pin receptacle 24 now serves as a guide for the (respective) outer pin 22 and the (respective) outer pin 22 can rotate in the outer pin receptacle 24.

[0092] If the angle between the back section 10 and the buttocks and / or leg section 11 is increased (or decreased), the (respective) outer pin 22 can no longer be pulled out of the (respective) outer pin receptacle 24, since the (respective) wing no longer forms a positive fit with the outer pin receptacle 24, so that disassembly of the back section 10 and the buttocks and / or leg section 11 would already be prevented in this state - with a different angle.

[0093] In a next assembly step, the angle between the back section 10 and the buttocks and / or leg section 11 can be (slightly) increased so that the (respective) inner pin 23 and its (respective) wings rest against a widened area 29 of a (respective) guide 30 of the (respective) inner pin receptacle 25 (see Fig. 5). The (respective) inner pin 23 can now be pressed into the widened area 29 in the inner pin receptacle 25.

[0094] The inner pin receptacle 25 can now guide the (respective) inner pin 23 in such a way that when there is an angle change between the back section 10 and the buttocks and / or leg section 11 (i.e. in particular when there is a rotation of the (respective) outer pin 22 in the (respective) outer pin receptacle 24), the (respective) inner pin 25 is guided in the (respective) guide 30.

[0095] The guide 30 of the inner pin receptacle 25 is designed in particular in such a length that the predetermined angle of the installation configuration can no longer be achieved (even now).

[0096] Subsequently, the angle between the back section 10 and the buttocks and / or leg section is further increased in order to be able to attach the buttocks and / or leg section 11 and the back section 10 together to the base component 12.

[0097] Subsequently, the (respective) rotation strut 20 of the back section 10 is fixed to a backrest holder or the rotation areas 15 (see Fig. 2) of the base component 12.

[0098] The first rod 16 can then be guided through the (respective) guide groove 21 of the back section 10 and then fastened (by screwing) to the stabilization areas 18 (stabilization mounts), so that the back section 10 is attached to the base component. The buttocks and / or leg section 11 can then be rotated toward the stabilization areas 19 (stabilization mounts) until the stabilization areas 19 and a guide groove 33 (see Figs. 8 and 9) of the buttocks and / or leg section 11 are aligned, so that the second rod 17 is guided through the stabilization areas 19 and the (respective) guide groove 33 and then fastened (by screwing) to the base component 12.

[0099] The child restraint system (see Fig. 8 and 9) is (now) in a user position and the back section 10 and the buttocks and / or leg section 11 can be adjusted in inclination together (which is not further described here), whereby the acute angle of the installation configuration can no longer be achieved.

[0100] At this point, it should be noted that all parts described above, viewed individually and in any combination, particularly the details shown in the drawings, are claimed as essential to the invention. Modifications to these are familiar to those skilled in the art.

[0101] Furthermore, it is pointed out that the broadest possible scope of protection is sought. In this respect, the disclosure contained in the claims can also be clarified by features that are described with further features (even without these further features being mandatory). It is explicitly pointed out that parentheses and the term "in particular" are intended to emphasize the optionality of features in the respective context (which does not mean, conversely, that without such identification, a feature is to be considered mandatory in the corresponding context). The term "element / elements" should preferably characterize a coherent structure, which in turn can be connected to at least one other structure (to form a possibly integral and / or inherently immobile overall structure) or can be delimited from all other structures.

[0102] Reference sign

[0103] 10 back section

[0104] 11 Buttock and / or leg section

[0105] 12 base component (base element)

[0106] 13 carrying handles

[0107] 14 Cavity

[0108] 15 Rotation area (rotation point) 16 first rod

[0109] 17 second bar

[0110] 18 first stabilization point (first stabilization axis)

[0111] 19 second stabilization point (second stabilization axis) 20 rotation strut

[0112] 21 Guide groove

[0113] 22 outer pins

[0114] 23 inner tenons

[0115] 24 Outer tenon holder 25 Inner tenon holder

[0116] 29 widened area

[0117] 30 Guide

[0118] 33 Guide groove

Claims

Claims 1. Method for assembling a child restraint device, in particular a child seat for attachment to a motor vehicle seat, comprising at least a first and a second main component, and optionally a third main component, wherein the first and the second main component are brought into a predetermined installation relative position to one another and are connected to one another in the installation relative position - in a first connecting process -, wherein the first and second main components are then brought - in a second connecting process - into an assembly relative position deviating from the installation position and are connected in this such that the installation relative position can no longer be reached or can only be reached with difficulty.

2. Method, in particular according to claim 1, for assembling a child support device, in particular a child seat for attachment to a motor vehicle seat, comprising at least a first, a second and a third main component, wherein the first, second and third Main components are connected to one another, wherein at least one relative position of the first and second main components, which cannot be assumed or can only be assumed with difficulty when the first and second main components are connected to one another, cannot be assumed when the first and second main components are connected to the third main component.

3. Method, in particular according to claim 1 or 2, for assembling a child restraint device, in particular a child seat for attachment to a motor vehicle seat, comprising at least a first and a second main component, and optionally a third main component, wherein the first and the second main component are fastened to one another by a snap-in connection, in particular an irreversible one.

4. Method according to one of the preceding claims, wherein the first main component is a back section (10) and / or wherein the second main component is a buttock and / or leg section (11) and / or wherein the third main component is a base component (12).

5. Method according to one of the preceding claims, wherein at least two of the main components are pivotable and / or displaceable relative to one another, further preferably at least three of the main components are pivotable and / or displaceable relative to one another, in particular the first and second main components are pivotable and / or displaceable relative to one another and / or the first and second main components are pivotable and / or displaceable relative to the third main component, preferably jointly, in particular only jointly, and / or each for itself, in particular only each for itself.

6. Method according to one of the preceding claims, wherein the installation relative position lies in a predetermined first relative angle range, in particular corresponds to a first relative angle, which is preferably fixed in the sense that the first connection process can only be carried out at this first relative angle, and / or wherein the assembly relative position lies in a predetermined second relative angle range deviating from the first relative angle range, in particular corresponding to a second relative angle which is preferably fixed in the sense that the second connecting process can only be carried out at this second relative angle.

7. Method according to one of the preceding claims, wherein the first and second main components, when connected to the third main component, are pivotable relative to one another over a predetermined relative angle range of use, and / or wherein the first and second main components, when not connected to the third main component, are pivotable relative to one another over a predetermined relative angle range of non-use, which is preferably greater than the relative angle range of use.

8. Method according to one of the preceding claims, wherein for connecting the first and second main components, in particular for the first connecting process, a projection and a corresponding recess are provided, in particular a wing, preferably with an enlarged end, and a corresponding recess, preferably a corresponding hole, wherein the wing is preferably in register with the recess in a first position and engages over an edge of the recess in a second position and / or wherein for connecting the first and second main components, in particular for the second connecting process, a projection and a corresponding recess are provided, in particular a pin, preferably with an enlarged end, and a corresponding recess, preferably a corresponding hole, is provided, preferably in such a way that the projection can be snapped into the corresponding recess.

9. Method according to one of the preceding claims, wherein the first and second main components are guided to each other at a respective end before the first joining process, preferably at an acute relative angle, and / or, wherein the first and / or second main component are bent during the first and / or second connecting process, wherein the respective bending preferably takes place before and / or in addition to a possible snap-in process, and / or wherein the first and / or second main component are connected to the third main component via at least one, preferably at least or exactly two rods (16, 17), wherein preferably first a relative position between the first and second main components with respect to the third main component is determined and then the respective rod (16, 17) is inserted, and / or wherein the first and / or second main component are connected to the third main component via at least one detachable connection and / or screw connection.

10. System, in particular for carrying out the method according to one of the preceding claims, for assembling a child restraint device, in particular a child seat for attachment to a motor vehicle seat, wherein the system comprises at least a first and a second main component, wherein the first and the second main component can be brought into a predetermined installation relative position to one another and can be connected to one another in the installation relative position and can then be brought into a relative position deviating from the installation position in such a way that the installation relative position can no longer be reached or can only be reached with difficulty.

11. System, in particular according to the immediately preceding claim or for carrying out the method according to one of claims 1 to 9, for assembling a child restraint device, in particular a child seat for attachment to a motor vehicle seat, wherein the system comprises at least a first, a second and a third main component, wherein the first, second and third main components are connectable to one another, wherein at least one relative position of the first and second main components, which can be assumed when the first and second main components are connected to one another, cannot be assumed or can only be assumed with difficulty when the first and second principal component are connected to the third principal component.

12. System, in particular according to one of the two immediately preceding claims and / or for carrying out the method according to one of claims 1 to 9, for assembling a child support device, in particular a child seat for attachment to a motor vehicle seat, wherein the system comprises at least a first and a second main component, wherein the first and the second main component can be fastened to one another by means of a snap-in connection, in particular an irreversible one.

13. System according to one of claims 10 to 12, wherein the first main component is a back section (10) and / or wherein the second main component is a buttock and / or leg section (11) and / or wherein the third main component is a base component (12).

14. System according to one of claims 10 to 13, wherein at least two of the main components are pivotable and / or displaceable relative to one another, more preferably at least three of the main components are pivotable and / or displaceable relative to one another, in particular the first and second main components are pivotable and / or displaceable relative to one another and / or the first and second main components are pivotable or displaceable relative to the third main component, preferably together, in particular only together, and / or each for itself, in particular only each for itself.

15. System according to one of claims 10 to 14, wherein the installation relative position lies in a predetermined first relative angle range, in particular corresponds to a first relative angle, which is preferably fixed in the sense that the first connection process can only be carried out at this first relative angle, and / or wherein the assembly relative position lies in a predetermined second relative angle range deviating from the first relative range, in particular corresponding to a second relative angle which is preferably fixed in the sense that the second connecting process can only be carried out at this second relative angle.

16. System according to one of claims 10 to 15, wherein the first and second main components, when connected to the third main component, are pivotable relative to one another over a predetermined relative angle range in use, and / or wherein the first and second main components, when connected to the third main component, are pivotable relative to one another over a predetermined relative angle range in non-use, which is preferably greater than the relative angle range in use.

17. System according to one of the preceding claims 10 to 16, wherein for connecting the first and second main components, in particular for the first connecting process, a projection and a corresponding recess are provided, in particular a wing, preferably with an enlarged end, and a corresponding recess, preferably a corresponding hole, wherein the wing is preferably in register with the recess in a first position and engages over an edge of the recess in a second position and / or wherein for connecting the first and second main components, in particular for the second connecting process, a projection and a corresponding recess are provided, in particular a pin, preferably with an enlarged end, and a corresponding recess, preferably a corresponding hole, is provided, preferably in such a way that the projection can be snapped into the corresponding recess.

18. System according to one of claims 10 to 17, wherein the first and second main components are guided to each other at a respective end before the first connecting process, preferably at an acute relative angle, and / or, wherein the first and / or second main component are bent during the first and / or second connecting process, wherein the respective bending preferably takes place before and / or in addition to a possible snap-in process, and / or wherein the first and / or second main component are connectable or connected to the third main component via at least one, preferably at least or exactly two rods (16, 17), wherein preferably first a relative position between the first and second main components with respect to the third main component is fixable or fixed and then the respective rod (16, 17) is insertable or inserted, and / or wherein the first and / or second main component are connectable or connected to the third main component via at least one detachable connection and / or screw connection.

19. Child restraint device, in particular a child seat for mounting on a motor vehicle seat, assembled according to the method according to one of claims 1 to 9 and / or with the system according to one of claims 10 to 18.