Child Carriage Device with Belt System, Particularly a Stroller and / or a Child Seat

Abstract

The present invention relates to a child containment device, in particular a stroller (10) and / or a child seat, mounted on a stroller frame, comprising a seat unit (13) with a seat part (14) and a back part (16) that is adjustable with respect to the seat part in terms of inclination, and to the belt system (28) associated with at least one compensating device, which is designed to at least partially compensate, when changing the inclination, for at least one lengthening of at least one belt part between two bending points or one bending point and the attachment point, by correspondingly shortening another belt part between the two bending points or one bending point and the attachment point.

Description

Detailed Description of the Invention

[0001] [Technical field] The present invention relates to a child accommodation device, in particular a stroller and / or a child seat, for mounting on a stroller frame, where the child accommodation device comprises a seat unit and a belt system. [Background technology]

[0002] Child accommodation devices, such as in particular strollers and / or child seats, which are mounted on a stroller frame are basically known.

[0003] Baby strollers are known from the prior art that have a seat unit consisting of a seat part and a back part. Such seat units are also known to be provided with a tilting function that allows the back part to be tilted relative to the seat part to provide a sitting position and a lying position.

[0004] Furthermore, devices are known for fixing and / or safely holding a child during travel with a stroller. EP 2139746 B1 discloses a belt system with a central adjustment belt and a central belt tightening device for adjusting the length of the shoulder belts. This allows the length of the shoulder belts to be adjusted quickly and easily. The belt system comprises a crotch belt with a buckle body at the end and arranged in the center of the seat part, and two shoulder belts. The shoulder belts run symmetrically from the lateral frame parts of the stroller in the direction of the buckle body over the upper part of the child's thighs, are connected to the buckle body by snap fasteners, and are then bent so as to run symmetrically upwards and rest on the child's shoulders. In the child's shoulder area, the shoulder belts pass through the back or seat back part (from front to rear), bend and go downwards to the rear of the back (seat back part). The two shoulder belts meet at the rear to form a central adjustment belt, which is bent and runs through a belt tightening device arranged centrally on the upper surface of the seat part.

[0005] Guides on the rear of the back and on the underside of the seat prevent the seat and back from deforming when the belt system is adjusted with the central adjustment belt. The guides also prevent the central adjustment belt from tangling or sagging.

[0006] A fundamentally similar belt system is disclosed in US Patent Application Publication No. 2018 / 0050614 A1.

[0007] Overall, the operation and adjustment of the belt systems in the solutions according to the prior art is considered to be relatively complicated. [Summary of the Invention]

[0008] SUMMARY OF THE DISCLOSURE It is therefore an object of the present invention to improve, and in particular simplify, the operation and adjustment of a belt system compared to the prior art.

[0009] This object is solved in particular by the features of claim 1.

[0010] In particular, the object is solved by a child accommodation device, in particular a stroller and / or a child seat, for mounting on a stroller frame, the child accommodation device comprising a seat unit and a belt system, the seat unit comprising a seat part and a back part (backrest part) which is adjustable with respect to the seat part in terms of inclination (or extension), the belt system being assigned at least one compensator (of the child accommodation device) configured to at least partially compensate, when changing the inclination, for at least one lengthening of at least one (variable length) belt part by a corresponding shortening of another belt part. A belt part is in particular defined as a part of the belt of the belt system which lies between two bending points or between an bending point and a tightening point, whereby "between" is understood to mean in particular that the belt part is limited by said points or defined in terms of its length. Since the bending and tightening points are not specifically defined by the belt itself, but by other structures (e.g. the seat and / or back), the imaginary markings on the belt may or may not be part of a section, depending on the adjustment (e.g. for incline and / or size of the child).

[0011] A bending point is preferably understood as a part or area in the entire belt guide where the belt is bent, i.e. where its direction of extension is changed. It is to be noted in this respect that the "point" is not understood in the mathematical or geometric sense (as a zero-dimensional structure), but as a corresponding part or area. The (respective) bending point can preferably be configured such that the extension of the belt is bent by at least 10°, or at least 30°, or at least 45°, or at least 90°, possibly at least 135°, or at least or exactly 180°. In general, a bending point is characterized in that the belt or belt system can slide along the bending point (e.g. during adjustment of the belt system or during other changes to the child restraint device). According to this embodiment, the bending point does not have a tightening function in the sense that the belt can be fixed at the corresponding place ("fixing" in this context is understood as holding a point of the belt at the corresponding place, as can also be the case for example with a belt buckle or belt lock).

[0012] A fastening point is understood here in particular as a point which defines a part or area in the (total) belt guide where the belt is fixed or fastened or at least can be fixed or fastened. For this purpose, at the fastening point there may be at least one corresponding fastening device (fastening device), for example a belt buckle or a belt lock. A fastening point can also be realised by connecting the belt to itself whilst surrounding an external structure (for example a bar), in particular by sewing, riveting etc. In the use state, the corresponding fastening device is preferably configured in such a way that the belt cannot be displaced at the corresponding fastening point (without releasing the fastening device).

[0013] In this sense, a belt system configured as a five-point belt system preferably has at least three fastening points, i.e. a fastening point for an end of the crotch belt and for each end of the two waist belts. Alternative configurations are also possible.

[0014] A change in inclination means in particular that the seat and the back unfold (or fold away from each other) or rotate towards each other (or at least partially fold together). In this respect, the change in inclination preferably corresponds to a rotation (at least in the use state horizontal) about a corresponding axis of rotation (tilt axis). This can (as a physical-technical structure) be constituted by a corresponding (e.g. integral) axis, but this is not essential. In this respect, for example interlocking guides or other structures allowing relative rotation can also be envisaged. In particular, the seat and the back can be connected to each other in (or via) such an axis of rotation.

[0015] Preferably, no further bending points and / or clamping points are provided between the two bending points or between the pair of bending and clamping points under consideration (although this is possible).

[0016] At least partial compensation is preferably achieved only as a result of a change in the inclination (i.e. it is preferably assumed that the corresponding belt is not released). In this sense, releasing a lock, moving the belt relative to the lock or creating a (new) lock is not to be understood as partial compensation in particular.

[0017] Each belt section is preferably considered in the case where the child is not seated in the child seat and the belt system is fixed (and fastened snugly or without slack). Alternatively or additionally, each condition, in particular the conditions of claim 1, can also be met if a dummy is accommodated in the seat unit. In particular, this may be a Humanetics dummy (according to the version that is or was the latest at the time of filing or priority claim), for example a dummy of the Q series. In particular, depending on the size of the seat, a suitable dummy can be selected from these dummies, for example Q0, Q1, Q1.5, Q3, Q6 and / or Q10, where the number after Q corresponds approximately to the age of a child of comparable height and weight. If the child accommodation device is designed for several dummies, each condition may apply to at least one, or to several or to all of the dummies.

[0018] A belt portion is preferably understood as a (respective) continuous or integral (monolithic) portion of the belt. However, a belt portion can also be understood to mean, for example, a portion of a belt system comprising two or more integral (possibly monolithic) portions (e.g. fabric portions) connected to one another by connecting devices (e.g. belt buckles and / or locks). In this sense, a belt portion can also be a portion of a belt system that extends from a bending point assigned to the crotch belt via a belt buckle to a bending point assigned to the shoulder belt.

[0019] For example, widening of the child restraint device (or the seat part relative to the back) can cause the belt part located on the side of the seat unit facing the child during use and / or the belt part that directly holds (contacts) the child to stretch, which belt part travels between an inflection point (e.g. in the upper part of the back) and an inflection or tightening point in the seat part (especially in the front part of the seat part), which is preferably compensated for (by a compensating device) by a corresponding shortening of another belt part (e.g. the belt part that extends behind the child's back and / or the belt part that extends under the child's buttocks and / or generally the belt part that does not contact the child during use).

[0020] The central idea of ​​this first aspect is that a partial stretch of the belt system, resulting in particular from a change in the inclination of the seat unit, is at least partially compensated elsewhere, thereby preventing the resulting excessive tension in the belt system (at least in that part), which would normally mean increased frictional resistance when parts slide over each other and / or requiring a readjustment (new adjustment) of the belt system.

[0021] Overall, this makes it easier to operate and adjust the child seat. It was recognized that in particular with known belt systems according to the prior art, problems arise in that high frictional forces occur at the bending points of the belt, making the operation and adjustment of the belt system more difficult. According to the central idea of ​​the first aspect, these frictional forces are reduced when the belt system is adjusted, and thus the guidance and handling of the entire belt system is improved. In (basically known) seat units with tilting function, a problem arises in particular when moving the back from a seated (or more upright) position to a lying (or less upright) position, that the belt tension of the adjusted belt system changes, sometimes significantly. As a result, the belt system may become too tight or too loose after moving from one position to another, making the belt system uncomfortable for the child or not protecting the child sufficiently (or both). In this respect, an improvement is realized by partially compensating for the belt tension of the belt system, which is likely to change, in particular when moving the back from one position to another.

[0022] According to a second (independent) aspect (but preferably combinable with the above-mentioned first aspect), the above mentioned object is solved by a child accommodation device, in particular a stroller and / or a child seat, for mounting on a stroller frame, preferably the child accommodation device having a seat unit and a belt system, the seat unit preferably having a seat part and a back part which is adjustable relative to the seat part in terms of inclination, and at least one belt of the belt system is bent over at least one bending device, and when adjusting the belt system, a contact part of the at least one belt which comes into contact with the bending device slides (or is able to slide) over the bending device at least substantially without resistance and / or at least with reduced resistance.

[0023] Thus, the central idea of ​​this second aspect is to provide measures to reduce frictional resistance in the region of the bending device (or bending point). Such measures can comprise, for example, surface treatments, for example polishing and / or lubrication, corresponding material selection and / or mechanical solutions, for example with at least one roll and / or at least one ball bearing and / or needle bearing. This can also at least reduce the stresses described above, since a certain degree of equalization between the individual belt parts (as a result of the low friction, a corresponding movement of the contact parts for equalization can be promoted) is promoted. Thus, in particular in combination with a compensation device, an effective equalization or reduction of undesirable tensions in the belt system can be achieved synergistically.

[0024] According to a third independent aspect of the invention (preferably combinable with the first and / or second aspect), the above mentioned object is in particular solved by a child accommodation device, which comprises a seat unit and a belt system, the seat unit preferably having a seat part and a back part which is adjustable relative to the seat part in terms of inclination, and at least one belt of the belt system is bent on at least one bending device, the bending device being at least partially formed by a bar material, preferably from a frame or a frame part.

[0025] According to the basic concept of the third aspect, the belt system is bent at least at one point by a bar, preferably a frame part, in this way the resistance forces due to bending can be reduced in a structurally simple manner.

[0026] According to a fourth independent aspect of the present invention (preferably combinable with the first, second and / or third aspect of the present invention) the above is solved by a child accommodation device, in particular a stroller and / or a child seat, which comprises a seat unit and a belt system, the seat unit preferably having a seat part and a back part which is adjustable relative to the seat part in terms of inclination, at least one belt of the belt system is bent on at least one bending device, which bending device defines a gap having a contact surface (in particular a contact base surface) in contact with the belt, and which gap is at least partly, optionally entirely, covered by a fabric cover.

[0027] The central idea of ​​the fourth embodiment is to guide the belt system or a part thereof through a gap (preferably U-shaped in cross section, in particular in cross section perpendicular to the belt path or its contacts), which simultaneously defines a bend, and which gap is preferably covered with a fabric cover. On the one hand, this allows the bend to be covered in a simple manner, and on the other hand, the gap ensures that the corresponding part of the belt is not held (at least too much) by the fabric cover or that the same part does not offer any (greater) resistance during the corresponding movement through the gap.

[0028] In particular, the gap is U-shaped (when viewed from the side and / or along the extension direction of the belt portion passing through the gap). Preferably, the gap is not a through hole and / or a slot. In particular, the gap is not defined by a sphere (without taking into account the fabric reference) and / or by a torus (in the topological sense).

[0029] According to a fifth aspect of the invention, which can preferably be combined with the first, second, third and / or fourth aspects of the invention, the above mentioned object is solved by a child accommodation device, in particular a stroller and / or a child seat, in particular for mounting on a stroller frame, the child accommodation device comprising a seat unit and a belt system, the seat unit comprising a seat part and a back part which is preferably adjustable relative to the seat part in terms of inclination, and wherein the fastening point of one (said) crotch belt is connected to the back part at a defined position and / or is located in the lower part of one (said) back part and / or when unfolded rotates together with the back part and / or is displaced forwards relative to the seat part and / or is displaced upwards relative to the seat part.

[0030] The central idea of ​​the fifth embodiment is that the crotch belt is not fastened to the seat (as is usually the case), but to the back, which can preferably be expanded relative to the seat. As a result, the displacement of the back relative to the seat also leads to a corresponding displacement of the fastening point (relative to the seat), which simplifies the operation altogether. In particular, by such measures it is possible to realize that the effective length of the crotch belt (i.e. the length from the upper surface of the seat to the belt buckle) increases when the back is expanded relative to the seat. For this purpose, the seat belt is preferably fastened to a fastening point that is (for example at least 2 cm, or at least 5 cm, or at least 10 cm) below the height of the tilt axis (when the upper surface of the seat is aligned horizontally).

[0031] In an embodiment, the compensation device forms at least one first bending point (relative to the path of the corresponding belt or belt system) that is located between a second bending point and a third bending point (preferably no further bending points and / or fastening points are provided between the first and second bending points and / or between the first and third bending points) and / or between one (said) second bending point and one (said) fastening point (preferably no further bending points and / or (further) fastening points are provided between the first and second bending points and / or between the first bending point and the fastening point), and when the back and the seat are widened such that the belt portion between the second and third bending points and / or the belt portion between the second bending point and the fastening point is shortened, the first bending point is displaced relative to the back and / or the seat, the first and / or the second bending point being designed to rotate with the back or rotate with the seat during the adjustment of the inclination, in particular to be mounted in a defined position relative to the back or the seat; and / or It is preferably applied that the third bending point and / or the fastening point is designed to rotate together with the seat or to rotate together with the back during adjustment of the inclination, in particular to be mounted in a defined position relative to the back or the seat.

[0032] At least one bending point, which preferably rotates together with the back during tilt adjustment, can be at a position lower than the tilt axis (e.g. by at least 2 cm, or at least 5 cm, or at least 10 cm, and / or up to 30 cm) in at least one configuration of the child support device, and / or can be closer to the height of the tilt axis (e.g. by at least 2 cm, or at least 5 cm, or at least 10 cm) when the seat and back are unfolded, and / or can be displaced upwards (e.g. by at least 2 cm, or at least 5 cm), relative to the seat, and / or can be displaced forwards (e.g. by at least 2 cm, or at least 5 cm, or at least 10 cm), and / or can be moved away from the vertical left-right plane in which one (that) tilt axis exists.

[0033] A vertical left-right plane is understood in particular as a plane which is oriented vertically and which extends from the left side to the right side of the child seat (in particular a plane which is perpendicular to the front-rear plane and which can be formed by a plane of symmetry or a plane parallel thereto).

[0034] To the extent that the position of points, elements and / or parts (or other structures) is addressed above and / or below and / or changes in such position, the respective conditions or standards should preferably apply to at least one of possibly several adjustable (use) configurations (or at least one of possibly several possible configuration variations), and possibly to all configurations / configuration variations that are affected accordingly. Furthermore, it should be assumed in particular that the surface (top or seat surface) of the seat (on which the child sits) is at least substantially horizontal. If the surface is not flat, it should preferably be measured within 1 cm 2 If we divide the image into squares such that the squares are at least substantially horizontally aligned on the arithmetic mean, then we can be sure that the image is horizontally justified.

[0035] At least one bending point (at least a first bending point), which preferably rotates together with the seat during tilt adjustment, can be behind one (respective) tilt axis (or the vertical left-right plane in which the tilt axis exists), and / or can be displaced forward relative to the upper end of the back when the seat and back are unfolded, and / or can be displaced downward relative to the lower end of the back (e.g. by at least 2 cm, or at least 5 cm, or at least 10 cm), and / or can have a certain distance of 0 cm or more from the height (respective height) of one (respective) tilt axis.

[0036] The fastening point of the (said) crotch belt is preferably connected to the back at a defined position and / or is located on the lower part of the back, and further (alternatively or additionally), when unfolded, the fastening point can rotate with the back and / or can be displaced forward relative to the seat (e.g. by at least 2 cm, or at least 5 cm, or at least 10 cm) and / or can be displaced upward relative to the seat (e.g. by at least 2 cm, or at least 5 cm, or at least 10 cm).

[0037] Further, one or more shoulder belt fastening points may be connected to the seat at a defined location and / or may be located in the front portion of the seat and / or may be rotatable with the seat when unfolded and / or may be displaceable forward relative to the back and / or may be closer to the back.

[0038] The following preferably applies here (both above and below): A front part of the referenced structure is understood to be a part that spans (at most) 50%, in particular only 30%, of the total length with the front end of the referenced structure. A rear part of the referenced structure is understood to be a part that spans (at most) 50%, in particular only 30%, of the total length with the rear end of the referenced structure. A lower part of the referenced structure means a part that spans (at most) 50%, in particular only 30%, of the total length with the bottom end of the referenced structure. An upper part of the referenced structure means a part that spans (at most) 50%, in particular only 30%, of the total length with the top end of the referenced structure.

[0039] The seat portion preferably has a seat surface (to accommodate the child's thighs and buttocks) and possibly side bolsters to provide lateral support or protection for the child. The back portion preferably has a backrest (against which the child's back rests) and possibly side portions or side bolsters to provide lateral support and / or protection for the child in the rear region.

[0040] In one embodiment, the fastening point of one (respective) crotch belt and the bending point of at least one shoulder belt (or a connecting belt connecting two shoulder belts in a Y-shape) may overlap (at least substantially) in terms of projection in at least the vertical front and rear planes.

[0041] This is a simple and clear way of compensating for changes in length of a particular section of the belt. It is particularly preferred that the tightening or bending point is located below the tilt axis (by at least 2 cm, or at least 5 cm, or at least 10 cm).

[0042] The static friction coefficient between the material of the contact part and the material of the bending tool (in contact with the contact part) is preferably 0.5 or less, more preferably 0.25 or less, even more preferably 0.1 or less and / or 0.01 or more. Alternatively or additionally, the sliding friction coefficient between the material of one of the contact parts and the material of one of the bending tools (in contact with the contact part) is preferably 0.4 or less, more preferably 0.20 or less, even more preferably 0.08 or less and / or 0.005 or more.

[0043] The coefficient of friction may preferably be determined according to DIN-EN-ISO 8295 (valid at the filing date or priority date). In particular in the case of non-isotropic coefficients of friction, it is preferable to envisage a sequence of coefficients of friction that also corresponds to the movement (or sliding) of the contacts along (or within) the bending tool.

[0044] The surface of the bending tool preferably comprises or consists of a thermoplastic material, more preferably ABS, PA, PE and / or PP.

[0045] The bending tool may comprise, according to certain embodiments, at least one bending roll, and / or at least one ball bearing, and / or at least one needle bearing.

[0046] In the bending region (or the corresponding bending point), the belt preferably does not come into contact with the cover (fabric cover).

[0047] In embodiments, the belt system can be configured as a five-point belt or a three-point belt. Alternatively or additionally, the belt system is a one-pull harness (i.e., a belt system that specifically provides centralized adjustment or regulation by pulling).

[0048] Particularly preferably, the child accommodation apparatus is configured as a stroller (or as a child carrying unit for a corresponding stroller, for example mounted on the stroller frame), in particular as a child carrier and / or buggy and / or bicycle trailer.

[0049] A stroller (e.g. a child carrier or buggy) may comprise a frame and a seat unit comprising a seat part and a back part (or backrest part). The back part (or backrest part) is preferably adjustable by means of a tilt function between at least an (at least substantially) upright sitting position and a lying position which is flat compared to the sitting position. Furthermore, a belt system is preferably provided for securing a child positioned on the seat part.

[0050] According to a broad concept, the belt system may be configured to at least partially compensate for changing belt tension (and / or at least partial belt length changes) upon use of the tilt function.

[0051] As an alternative (or in addition) to this broad concept, the child accommodation device (stroller) has at least one bending device (bending element) which allows for improved (optimized) guidance of the belt system and reduces any friction occurring during adjustment of the belt system.

[0052] The stroller frame may have at least one front leg, at least one rear leg, and at least one pusher (and possibly at least one cross brace). Typically, the frame may comprise a number of bars and / or other elongated elements. Preferably, the frame comprises at least one front leg and two rear legs, more preferably two front legs and two rear legs, and at least one cross brace may be provided between the two front legs and / or the two rear legs for stabilization.

[0053] At least one front leg may be connected at at least one joint to at least one rear leg and / or to at least one pusher, for example to enable the frame to be moved to a use position or a transport position.

[0054] The stroller frame may have at least three wheels, preferably one wheel per leg, but it is also possible to have two wheels per leg.

[0055] The child accommodation device (e.g. stroller) comprises a seat unit comprising a seat part and a back part. Preferably, the child accommodation device (e.g. stroller) further comprises a frame, and the seat unit can be integrally formed in the frame or, additionally or preferably alternatively, the frame can have at least one fastening option for the seat unit. The seat part is preferably configured to at least partially accommodate or support the hips and / or legs and / or thighs of a child. The back part is preferably configured to accommodate or support the back and / or head of a child. The seat unit can be an integral part of the child accommodation device (e.g. stroller) by fixed connection to the stroller frame or can be removably arranged on the frame (stroller frame) by corresponding fastening options.

[0056] If the seat unit is designed as an integral part of a child accommodation device (e.g. a stroller), it may essentially consist of a fabric attached to the frame of the stroller. For stabilization, the flat plate and / or plate-like element (e.g. a PE flat plate) may also be supported by the fabric, in particular by an inserted and / or sewn-in fabric. Furthermore, the seat unit may comprise additional cross braces and / or lateral braces and at least one joint that can be rigidly connected to the frame. The at least one joint may be the same as or preferably different from the at least one joint that connects the at least one front leg and / or the at least one rear leg and / or the at least one pusher to each other.

[0057] If the seat unit is arranged removably on a child accommodation device (e.g. a stroller), the frame comprises at least one mounting option for the seat unit, such as an adapter etc. As with seat units which are integrally formed with the child accommodation device (e.g. a stroller), the removable seat unit may comprise cross braces and / or lateral braces, flat and / or plate-like elements and shell-shaped elements (e.g. a seat shell) which are supported by fabric, in particular by inserted and / or sewn-in fabric.

[0058] Preferably, the seat unit is designed such that the seat part comprises plate-like and / or shell-like elements, in particular a seat shell, and the back part comprises a frame of lateral and cross braces, in particular an at least partially annular frame. Additionally, and preferably as an alternative, the back part may also be formed with flat plates and / or plate-like elements. Furthermore, the seat part and the back part may comprise (in particular removable) fabric elements, at least one fabric element may be provided on at least one of the upper and / or lower surfaces of the seat part and / or at least one fabric membrane may be provided on at least one of the front and / or rear surfaces of the back part.

[0059] The seat unit preferably has a tilt function whereby the angle of the back (backrest portion) relative to the seat can be adjusted, preferably so that the back (backrest portion) can be moved at least to a substantially upright sitting position and to a lying position which is flat and as horizontal and / or nearly horizontal as possible relative to the sitting position, and further positions between the sitting position and the lying position can be provided.

[0060] The back portion in particular defines the backrest of the seat unit, and the seat portion defines the seat surface of the seat unit. The backrest and the seat portion limit the accommodating space for a child at least in their respective portions.

[0061] The back (backrest portion) can be connected to the seat portion (preferably in its rear region) in the lower region via at least one joint of the seat unit such that during tilt adjustment the back (backrest portion) moves from an upright sitting position to a flattened, as horizontal and / or approximately horizontal as possible lying position with part of it below and / or above the seat portion, or such that during tilt adjustment the seat portion moves from an upright sitting position to a flattened, as horizontal and / or approximately horizontal as possible lying position with part of it below and / or above the back (backrest portion).

[0062] In one embodiment, at least one joint, in particular two joints, preferably a right joint and a left joint, between the seat and the back can define an axis. In particular, this can be an imaginary axis that is (only) physically defined by at least one joint, in particular two joints. In this embodiment, this axis can pass through the storage space. As a result, it can be realized that the seat and the back are closer to each other and / or have a larger overlap in the lying position than in the sitting position.

[0063] In particular, the seat and the backrest (except for the joints) can be spaced apart from each other in the sitting position and directly adjacent to each other in the lying position. However, the seat and the backrest can also be directly adjacent to each other in the sitting position and overlap in the lying position. Mixtures and minor variations of these embodiments are also conceivable.

[0064] The back part (backrest part) is intended to guide at least one belt of the belt system in at least one position of the seat unit and may have at least one position a first guide part designed to protrude downwards beyond the seat part and / or to protrude away from the backrest beyond the part of the back part (backrest part) that defines the backrest.

[0065] As an alternative or in addition to the first guide portion in the back part (backrest part), the seat part may have a second guide portion which is intended to guide at least one belt of the belt system in at least one position of the seat unit and which is designed in at least one position to protrude downwards beyond the part of the seat part defining the seat surface and / or to protrude away from the backrest beyond the part of the back part defining the backrest and / or to protrude away from the storage space.

[0066] In one embodiment, the back portion (backrest portion) may have a first guide portion which protrudes downward beyond the portion defining the seat surface of the seat portion when the seat unit is in the seated position and which can approach and, if necessary, contact the underside of the seat portion when the seat unit is moved to a reclining position.

[0067] In one embodiment, the seat portion may have a second guide portion which protrudes rearward beyond the portion of the back portion (backrest portion) that defines the backrest when the seat unit is in the seated position and which can approach and, if necessary, abut the rear surface of the back portion (backrest portion) when the seat unit is moved to the reclining position.

[0068] In one embodiment, the back portion may have a first guide portion that projects rearward beyond a portion of the back portion that defines the backrest when the seat unit is in the seated position, and the seat portion may have a second guide portion that projects downward beyond a portion of the seat portion that defines the seat surface. When the seat unit is moved to the reclining position, the first guide portion can approach the second guide portion.

[0069] The crotch belt of the belt system can be attached to the seat and / or can bend through a further opening disposed in the seat from the upper surface to the lower surface of the seat and be attached in the lower region of the back (backrest portion) (possibly at its lower end).

[0070] Alternatively or additionally to the above-mentioned embodiments, the crotch belt can be attached to the lower end of the membrane (possibly a fabric membrane) or also to the lower cross brace of the back part (seat back part). Furthermore, according to an embodiment, the crotch belt can be releasably positioned at the lower part of the back part (possibly at the lower end) by means of a suitable fastening mechanism (e.g. a buckle) in order to easily remove the back part membrane (possibly a fabric membrane).

[0071] By attaching one end of the crotch belt to the lower portion (if possible the lower end) of the back (seat rest portion), it is possible to compensate for the belt tension of the belt system which changes when adjusting the inclination of the back (seat rest portion).

[0072] By changing the inclination of the back (backrest part), for example from an upright seating position to a lying position, the lower end of the back (backrest part) can move at least partially below or above the seat part, thereby moving closer to the opening in the seat part through which the crotch belt is guided. Alternatively, the lower end of the back (backrest part) can change the position of at least one of the above-mentioned guide parts, thereby shortening the distance that the crotch belt spans between the attachment of the crotch belt 32 and the opening in the seat part through which the crotch belt is provided and the attachment position. When the crotch belt is attached to the lower part (possibly the lower end) of the back (backrest part), the variable length of the crotch belt (measured from the surface of the seat part to the belt buckle arranged at one end of the crotch belt) changes from the length L1 to a different length, preferably a longer length, L2, in the state of the closed belt system. This allows the length of the belt system required to maintain the same belt tension in the seated and / or lying position to be compensated for by changing the length of the crotch belt from length L1 to length L2. The opposite effect occurs when changing the inclination of the backrest in the opposite direction.

[0073] Mixtures, permutations, and / or combinations of the various embodiments are also possible.

[0074] At least one bending device (bending element) may be provided on the seat and / or on the back (preferably at least on the back), which is configured to optimally guide the belt system with minimal friction when adjusting the belt system.

[0075] At least one bending device (bending element) can be arranged in the upper and / or lower part (possibly at the upper end and / or at the lower end) of the back part (backrest part), in particular on an upper and / or lower cross brace of the frame of the back part (backrest part) and / or in the rear part (possibly at the rear end) of the seat part facing the back part and / or on the underside of the seat part. Basically, a bending device (bending element) can be provided for each bending point of the belt of the belt system, but preferably, in particular one bending device (bending element) per shoulder belt is provided in the upper part (possibly at the upper end) of the back part (backrest part), in particular on an upper cross brace of the frame of the backrest part.

[0076] According to certain embodiments, the bending tool (bending element) may preferably be at least substantially U-shaped or H-shaped in front and / or cross section, although other shapes with a recess (gap) (possibly located between two protrusions) are also conceivable. Alternatively or additionally, the recess (gap) constitutes a hollow cylinder, in particular a toric hollow cylinder (if one considers the space that defines the recess or imagines this space filled with material). Alternatively or additionally, the recess (gap) may be defined by a pair of ring structures rising on a cylindrical base structure.

[0077] The belt of the belt system, in particular the shoulder belt, preferably extends within a recess in the bending device (bending element), whereby the preferably outer protrusion or recess or gap side walls serve to guide the belt laterally and prevent the belt from slipping out of the bending device (bending element) laterally when adjusting the belt system.

[0078] In another embodiment, the bending device (bending element) may have a concave gap (eg a slot) preferably of elongated shape, although other shapes of concave gaps through which the belt can be guided are also conceivable.

[0079] The bending device (bending element) can preferably be attached (particularly fastened) as a separate component or as a group of components in (possibly at) the upper part of the back (backrest part) and / or can be designed as an integral part of the upper part (possibly at) the back (backrest part). The upper part (possibly at) of the back (backrest part) itself can also be shaped in such a way that there is a recess and / or two convex and / or concave gaps in which the belt of the belt system can be guided and bent. The upper part of the back (backrest part) in particular comprises the upper end of the back (backrest part). The upper end of the back (backrest part) can be understood to mean, for example, the upper cross brace of the frame of the back (backrest part) or the upper edge of the flat plate and / or plate-shaped element of the back (backrest part).

[0080] According to one embodiment, the bending devices (bending elements) can be formed integrally with the cross braces of the frame such that the cross braces form a taper that guides the belt.

[0081] In another embodiment, the bending device (bending element) can be formed integrally with the cross brace of the frame so as to define two thickened sections between which the belt can be guided.

[0082] In another embodiment, the bending device (bending element) can be formed separately from and attached to the cross brace of the frame so that two thickenings and / or a taper (possibly located between the two thickenings) can be formed.

[0083] In another embodiment, the bending devices (bending elements) can be formed integrally with the cross braces of the frame such that the cross braces have concave gaps through which the belt can be guided.

[0084] In another embodiment, the flexures (flexion elements) can be formed separately from and attached to the cross braces of the frame to allow for the formation of the concave gap.

[0085] According to one embodiment, the bending device (bending element) can be formed integrally with the flat plate and / or plate-shaped element of the back part (backrest part), such that the flat plate and / or plate-shaped element forms a recess for guiding the belt.

[0086] In another embodiment, the bending device (bending element) can be formed integrally with the flat and / or plate-shaped element of the back part (backrest part) such that the flat and / or plate-shaped element forms two convex parts between which the belt can be guided.

[0087] In another embodiment, the bending device (bending element) can be formed separately from the flat and / or plate-shaped element of the back part (backrest part) and can be attached to the back part (backrest part) so as to form two convex portions and / or concave portions (possibly located between the convex portions).

[0088] In another embodiment, the bending device (bending element) can be formed integrally with the flat plate and / or plate-shaped element of the back (backrest portion) such that the flat plate and / or plate-shaped element has a concave gap through which the belt can be guided.

[0089] In another embodiment, the bending device (bending element) can be formed separately from the flat and / or plate-shaped element of the back portion (backrest portion) and can be attached to the back portion (backrest portion) so as to have a concave gap.

[0090] In order to minimize the frictional forces generated by the at least one bending device (bending element) at the at least one bending point of the belt system, according to one embodiment the bending device (bending element) can be made of a low-friction material (for example a thermoplastic material such as ABS, PA, PE or PP) or in any case have a surface made of such a material.

[0091] In another embodiment, the bending device (bending element) can also comprise a roll and / or a roll-like element (eg a bending roll).

[0092] Alternatively or additionally, the frictional forces occurring at at least one bending point of the belt system can be minimized by preventing direct (indirect) contact between the belt and at least one membrane (e.g., fabric membrane) of the back portion (backrest portion) at the at least one bending point by means of at least one bending device (flexion element).

[0093] Combinations of the above-mentioned embodiments are also conceivable and are made in accordance with the present invention.

[0094] The belt system may comprise at least one waist belt and at least one shoulder belt, preferably two waist belts and two shoulder belts, whereby preferably one waist belt and one shoulder belt each may form part of an integrated shoulder / waist belt, or alternatively the belts may be formed separately. In addition, the belt system preferably comprises a crotch belt, one end of which may be attached to the seat or bendable at the seat, possibly a belt buckle attached to the other end of the crotch belt, a central adjustment belt and a central belt tightening device for locking the central adjustment belt.

[0095] At least one hip belt can extend laterally from the seat unit towards the belt buckle at the height of the child's hips. At least one shoulder belt preferably extends (transversely) over the child's chest or half of the chest and possibly over the abdomen (from the shoulder to the belt buckle). On each hip belt and / or on each shoulder belt a connection element, in particular a belt tongue, is provided, which can connect the belt and the belt buckle (possibly slidably). In the case of an integrated shoulder / hip belt having a hip belt part and a shoulder belt part, one connection element, in particular a belt tongue, can be provided for each integrated shoulder / hip belt. Thus, each integrated shoulder-hip belt can be bent by a guide on the belt buckle or on the belt tongue such that the part where the bending occurs in the guide forms an angle α of 30° to 60°, preferably at least 45°, possibly exactly 45° with respect to the horizontal and / or vertical.

[0096] In the child's shoulder area, preferably at least one shoulder belt is guided into and / or through the back, preferably into the back, more preferably behind at least a front membrane of the back, e.g. a fabric membrane (or fabric cover). According to this embodiment, at least one shoulder belt is bent by at least one bending device (bending element) in the upper part of the back (possibly at the top end) in such a way that the shoulder belt runs downwards, behind at least a first membrane of the back, in the direction of the seat.

[0097] At least one shoulder belt, more preferably two shoulder belts, are joined together to form a central adjustment belt, preferably at least behind the front membrane of the back part. This joining can be achieved, for example, via connecting pieces to which the at least one shoulder belt and the central adjustment belt can be attached, or by sewing the belts together. According to an embodiment, a joining in and / or under the seat is also conceivable.

[0098] At least one shoulder belt and / or central adjustment belt can run at least behind the front membrane of the back part (backrest part), at least a portion of which is within the range of the back part (backrest part), preferably in front of the rear membrane (e.g. a further fabric membrane), and more preferably between two membranes of the back part (backrest part) (e.g. between two fabric membranes), in particular to prevent the belts from becoming soiled and / or twisting and / or entanglement.

[0099] Typically, a low friction fabric film can be used (for the fabric cover), although other materials and other types of fabrics (eg plastic films) are also envisaged.

[0100] In particular, at least one bending device (bending element) can also be arranged between two membranes of the back part (backrest part), preferably between the membranes passing between at least one shoulder belt and / or central adjustment belt, so that the belt to be bent can be guided directly (straight) on the bending device (bending element).

[0101] If necessary, (at least) one of the membranes of the back part (backrest part) can also have (at least) one concave gap in the area of ​​at least one bending device (bending element) so that the belt to be bent can be guided directly (directly) over the bending device (bending element).

[0102] The central adjustment belt can be bent again in the lower part (possibly at the lower end) of the back (backrest portion) and / or in the transition area between the backrest and the seat and / or in the rear area of ​​the seat (possibly below the seat) and guided towards the front end of the seat, and the central adjustment belt can be guided (from the seat and / or from the underside of the seat) through a belt tightening device (or corresponding tightening point) that is preferably located in the center of the front area of ​​the seat, onto the upper surface of the seat.

[0103] Each belt tightening device (or corresponding tightening point) may be designed in particular to always allow movement of the belt guided therethrough in a first direction (at least when the corresponding force acting on the belt exceeds a predefined value, e.g. 20 N, or 10 N, or 5 N) and to allow movement of the belt in a second direction opposite to the first direction only if a release of the belt tightening device is simultaneously activated. The first direction is preferably from the lower surface of the seat part towards the upper surface of the seat part, in such a direction as to extend the variable end of the adjustment belt and pull the shoulder belt further at least behind the first membrane of the back part.

[0104] Thus, the central adjustment belt may preferably have an actuating part at the variable end, by which, by pulling the actuating part, the variable length of the shoulder belt or the belt tension of the belt system may be adjusted and locked by the central belt tightening device, which may have a release part (possibly comprising a lever and / or a button and / or a slider), the actuation of which allows the central adjustment belt to be unlocked.

[0105] The crotch belt of the belt system may be attached to the seat and / or may be attached at the lower part (possibly at the lower end) of the back (the backrest part) by redirecting it from the upper surface of the seat to the lower surface or through an opening (which may be the same as or different from the opening provided for the passage of the central adjustment belt) arranged in the seat. According to one embodiment, bending of the crotch belt and / or further bending of the other belts of the belt system is performed by using a bending device (bending element) of the kind illustrated above.

[0106] Above, reference is made to a child and to various areas defined by the child (e.g. waist height, shoulder area, etc.), which should be understood to mean the corresponding areas defined by dummies customarily used in child seat development. In particular, these may be, for example, Humanetics dummies, for example dummies of the Q series. Depending on the size of the seat, the skilled person will select one or more of these dummies, for example Q0, Q1, Q1.5, Q3, Q6 and / or Q10, where the number after Q corresponds approximately to the age of a child of comparable height and weight. The child restraint device (described above and / or below, respectively) may be configured to be mounted in a car seat, in particular as a child seat mounted in a car seat.

[0107] Furthermore, the above mentioned objects are independently solved by the methods for folding and / or unfolding the seat and back of a seat unit of a child restraint device as described above and / or below, respectively, where the features described functionally can be replaced by corresponding method steps.

[0108] Furthermore, the above mentioned objects are independently solved by a method for manufacturing a child restraint device as described above and / or below, wherein the surface of the bending tool is preferably smoothed, for example by polishing. Further embodiments arise from the dependent claims.

[0109] Further features and advantages of the invention will be apparent from the following detailed description of the preferred embodiments taken in conjunction with the accompanying drawings. [Brief description of the drawings]

[0110] [Figure 1] 1 is a perspective view of a stroller according to the present invention; [Diagram 2] FIG. 2 is a cross-sectional view of a seat unit including a belt system in a seated position. [Diagram 3] FIG. 2 is a cross-sectional view of a seat unit including a belt system in a reclining position. [Figure 4a] FIG. 2 is a schematic diagram of a further embodiment of the first group of embodiments of the present invention. [Figure 4b] FIG. 2 is a schematic diagram of a further embodiment of the first group of embodiments of the present invention. [Figure 4c] FIG. 2 is a schematic diagram of a further embodiment of the first group of embodiments of the present invention. [Figure 4d] FIG. 2 is a schematic diagram of a further embodiment of the first group of embodiments of the present invention. [Figure 4e] FIG. 2 is a schematic diagram of a further embodiment of the first group of embodiments of the present invention. [Figure 4f] FIG. 2 is a schematic diagram of a further embodiment of the first group of embodiments of the present invention. [Diagram 5]FIG. 2 is a front view of a seat unit including a belt system. [Figure 6] A cross-sectional view of the upper part of the back (backrest). [Figure 7] This is a front view of the upper part of the back (backrest). [Figure 8] FIG. 2 is a perspective view of the rear of the seat unit including the belt system. [Figure 9a] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 9b] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 9c] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 9d] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 9e] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 9f] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 9g] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 9h] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 10a] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 10b] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 10c] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 10d] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 10e] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 10f]FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 10g] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. [Figure 10h] FIG. 2 is a schematic diagram of a further embodiment of the second group of embodiments of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0111] [Detailed Description of the Invention] In the following description, the same reference numbers are used for identical parts and parts performing the same functions.

[0112] 1 shows an example of a stroller 10 according to the present invention. The stroller 10 comprises a frame 11 and a seat unit 13. The seat unit 13 is removably connected to the frame 11 via a fastening option 12 (e.g. an adapter).

[0113] The seat unit 13 has a seat part 14 and a back part 16, the seat part 14 defining the seat surface of the seat unit 13 and the back part 16 defining the backrest of the seat unit 13, the seat surface and the backrest defining at least a portion of a child accommodation space 21. Furthermore, the seat unit 13 (see Figures 2 and 3) is provided with a tilting function. The back part 16 is movably connected to the seat part 14 via a joint 20, so that it can be moved from an upright seating position (Figure 2) to a flattened, as horizontal as possible and / or nearly horizontal, lying position (Figure 3).

[0114] The seat unit 13 further comprises several (particularly removable) fabric elements 27, which will be explained in more detail below.

[0115] 1 further illustrates a belt system 28 connected to the seat unit 13, the belt system 28 comprising two lap belts 29 and two shoulder belts 30 each formed as a part of an integrated shoulder-lap belt 31, a crotch belt 32 guided and bent to pass through the opening 15 of the seat 14, and a belt buckle 33 attached to the end of the crotch belt 32 and projecting into the storage space 21 of the seat unit 13. The belt system 28 further comprises a central adjustment belt 36 having an actuating portion 37 and a central belt tightening device 38 for locking the central adjustment belt 36.

[0116] 2 and 3 illustrate an example of a first embodiment of the present invention in which the belt system 28 is configured to at least partially compensate for varying belt tension during use of the tilt function.

[0117] As can be seen from figures 2 and 3, the seating unit 13 is provided with a tilting function, with the back 16 in an (at least substantially) upright seating position in figure 2 and in figure 3 lying flat and as horizontal and / or nearly horizontal as possible relative to the seating position. The back 16 is connected (in its rear region) to the seat 14 in the lower region via a joint 20 of the seating unit 13, which (as can be seen from figure 1) defines an imaginary axis X1 that is physically defined (only) by the joint 20 and which runs through the accommodating space 21. Alternative ways of allowing relative rotation of the seat and the back are also possible.

[0118] During tilt adjustment of the back 16 from an upright sitting position to a flattened lying position, the back 16 moves at least partially under the seat 14, thereby achieving a shorter distance between the seat 14 and the back 16 and / or a greater overlap in the lying position than in the sitting position.

[0119] The crotch belt 32 of the belt system 28 is bent through an opening 15 arranged in the seat part 14 from its upper surface to its lower surface and is attached to the lower part 17 (possibly at the lower end) of the back part 16. By attaching one end of the crotch belt 32 to the lower part 17 (possibly at the lower end) of the back part 16, the distance between the attachment of the crotch belt 32 and the opening 15 of the seat part 14 through which the crotch belt 32 passes is shortened during the change of inclination from an upright sitting position to a lying position. As a result, when the belt system 28 is closed, the variable length L of the crotch belt 32 (measured from the surface of the seat part 14 to the belt buckle 33 arranged at one end of the crotch belt 32) changes from a length L1 in the sitting position of the back part shown in FIG. 2 to a different length, preferably a longer length, L2 in the lying position of the back part 16 shown in FIG. 3. In this way, the length L of the belt system 28 required to maintain the same belt tension in the seated and / or lying position can be compensated for by changing the length of the crotch belt 32 from length L1 to length L2. If the inclination of the backrest portion 16 is changed in the opposite direction (from FIG. 3 to FIG. 2), the opposite effect occurs.

[0120] 4a-4f show schematic diagrams of another embodiment of the present invention, which may be provided independently of or in combination with the above-mentioned embodiments.

[0121] 4a and 4b show the back 16 having a guide (flex point) 22 which projects downwardly beyond the seat 14 when the seat unit 13 is in the seated position. When the seat unit 13 is moved to the reclining position, the guide (flex point) 22 moves closer to, and may even contact, the underside of the seat 14.

[0122] 4c and 4d show the seat 14 having a guide portion (flexion point) 23 which projects rearward beyond the backrest 16 when the seat unit 13 is in the seated position. When the seat unit 13 is moved to the reclining position, the guide portion (flexion point) 23 approaches the rear surface of the backrest 16 and may even come into contact with the rear surface.

[0123] Figures 4e and 4f show the back 16 with a guide (flex point) 22 which projects downwards beyond the seat 14 when the seat unit 13 is in the seated position, and with another guide (flex point) 23 which projects rearwards beyond the back 16 when the seat unit 13 is in the seated position. When the seat unit 13 is moved to the reclining position, the guide (flex point) 22 approaches the other guide (flex point) 23.

[0124] 4a-4f, the guides 22 and / or the further guides 23 create a divergence for the central adjustment belt 36 and / or the shoulder belts 30 when the seat unit 13 is in the seated position. When the seat unit 13 is moved to the reclining position, this divergence is shortened by the guides 22 approaching the underside of the seat 14 or the further guides 23 approaching the rear of the backrest 16 or the guides 22 approaching the further guides 23. As a result, the central adjustment belt 36 and / or the shoulder belts 30 have a larger variable length available to partially compensate for the changing belt tension during the inclination adjustment.

[0125] Combinations of the above-mentioned embodiments are also conceivable and are made in accordance with the present invention.

[0126] In particular, further aspects are described below which allow improved guidance of the belt system 28 and reduce friction occurring during adjustment of the belt system 28 .

[0127] 5 shows a front view of the seat unit 13, and shows a belt system 28 according to the present invention. The belt system 28 includes two lap belts 29 and two shoulder belts 30, one of which is configured as a part of an integrated shoulder-lap belt 31. The belt system 28 also includes a crotch belt 32 that is bent at the seat 14 as shown in FIGS. 2 and 3, and a belt buckle 33 that is attached to the end of the crotch belt 32 that protrudes into the storage space 21 of the seat unit 13.

[0128] The waist belt 29 extends laterally from the seat unit 13 in the direction of a belt buckle 33 at waist height of the child. The shoulder belt 30 also extends in the direction of the belt buckle 33 across the child's chest and abdomen. The integrated shoulder / waist belts 31 with the waist belt portion 29 and the shoulder belt portion 30 each comprise a connection element 34, in particular a belt tongue, which connects the integrated shoulder / waist belt 31 to the belt buckle 33, respectively. By means of a guide 35 on the connection element 34, in particular the belt tongue, each integrated shoulder-waist belt 31 can be bent such that the part where the bend occurs in the guide 35 forms an angle α of 30° to 60°, preferably of about 45°, possibly even exactly 45° with respect to the horizontal and / or vertical.

[0129] In the child's shoulder area, the shoulder belt 30 is guided into (into) the backrest part 16 or behind the fabric element 27. Figure 6 shows the guidance of the shoulder belt 30, where it is guided behind the fabric element 27 on the front side of the backrest part 16, towards the upper part 18 of the frame of the backrest part 16, in particular the upper cross brace 19. There, the shoulder belt 30 is bent by a bending device (bending element) 24 (described in more detail below) towards the rear of the backrest part 16 in the direction of the seat part 14, after which the shoulder belt 30 runs between the two fabric elements 27.

[0130] 7 shows a front view of the back 16, showing the flexion device (flexion element) 24, which is attached (particularly fastened) preferably as a separate component in the upper part 18, in particular to the upper cross brace 19 of the frame of the back 16. The flexion device (flexion element) 24 is U-shaped when viewed from the front and comprises two projections 25 and a recess 26 located between the two projections 25. The shoulder belt 30 extends in the recess 26 of the flexion device (flexion element) 24, the lateral projections 25 serving to guide the belt in the lateral direction and preventing the shoulder belt 30 from slipping out of the flexion device (flexion element) 24 in the lateral direction when adjusting the belt system 28.

[0131] The bending device (bending element) 24 is made of a low-friction material (e.g., a thermoplastic material such as ABS, PA, PE, or PP) in order to minimize the frictional force occurring at the bending point of the shoulder belt 30. In this embodiment, as can be seen from Fig. 6, the side convex parts 25 of the bending device (bending element) 24 suppress direct (indirect) contact between the shoulder belt 30 and the fabric element 27 of the back part 16 at this bending point, thereby further minimizing the resulting frictional force.

[0132] As can be seen in figure 8, the two shoulder straps 30 are brought together at the rear of the back 16 by stitching each of them together with the central adjustment strap 36. Like the shoulder straps 30, the central adjustment strap 36 also runs within the two fabric elements 27 along the rear of the back 16 towards the seat 14, where it is bent again at the lower part 17 of the back 16 and guided towards the front end of the seat 14.

[0133] 2 shows how the central adjustment belt 36 is guided from the underside of the seat 14 through a centrally arranged belt tightening device 38 to the upper side of the seat 14. The variable end of the central adjustment belt 36 has an actuating portion 37, which allows the variable length of the shoulder belt 30 and the belt tension of the belt system 28 to be adjusted by pulling the actuating portion 37 in the direction of the arrow Z1. As a result, the variable end of the central adjustment belt 36 is pulled out, pulling the shoulder belt 30 further behind the fabric element 27 arranged on the front side of the back 16.

[0134] The belt tightening device 38 is configured to allow the central adjustment belt 36 to move in the direction of arrow Z1 (at least when a corresponding force acting on the central adjustment belt 36 exceeds a predetermined value) and to lock the central adjustment belt 36 by preventing the central adjustment belt 36 from moving in the opposite direction of arrow Z1. Activating a release portion (not shown) of the belt tightening device 38 releases the locked state of the central adjustment belt 36, allowing movement in the direction opposite to the direction of arrow Z1.

[0135] 9a-9h show schematic diagrams of alternative embodiments of flexion devices (flexion elements) 24, which may be formed separately and / or integrally with the upper cross braces 19 of the frame of the back section 16.

[0136] In FIG. 9a, the bending device (bending element) 24 is formed integrally with the upper cross brace 19 such that the upper cross brace 19 forms a recess 26 through which the belt can be guided.

[0137] In FIG. 9b, the bending device (bending element) 24 is formed integrally with the upper cross brace 19 such that the upper cross brace 19 forms two ridges 25 between which the belt can be guided.

[0138] In FIG. 9c, the bending device (bending element) 24 is formed separately from and attached to the upper cross brace 19 so as to form two protrusions 25 and a recess 26 located between the two protrusions 25 and capable of guiding the belt through the recess 26.

[0139] In FIG. 9d, the bending device (bending element) 24 is formed integrally with the upper cross brace 19 such that the upper cross brace 19 has a concave gap 39 through which the belt can be guided.

[0140] In FIG. 9e, the bending device (bending element) 24 is formed separately from and attached to the upper cross brace 19 such that a concave gap 39 is formed between the upper cross brace 19 and the bending device (bending element) 24 such that the belt can be guided through the gap 39.

[0141] In FIG. 9f, the flexion device (flexion element) 24 is formed separately from and attached to the upper cross brace 19 such that the flexion device (flexion element) 24 itself has a concave gap 39 through which the belt can be guided.

[0142] In FIG. 9g, the bending device (bending element) 24 is formed integrally with the upper cross brace 19 such that the upper cross brace 19 forms a slot through which the belt can be guided and passed laterally as required.

[0143] In FIG. 9h, the bending device (bending element) 24 is formed integrally with the upper cross brace 19 such that the upper cross brace 19 forms a slot through which the belt can be guided and passed from above as required.

[0144] 10a-10h show schematic views of another embodiment of a bending device (bending element) 24, which can be formed in the upper part 18 of the back 16 separately from and / or integrally with the plate-shaped element 40.

[0145] In FIG. 10a, the bending device (bending element) 24 is formed integrally with the plate-shaped element 40 such that the plate-shaped element forms a recess 26 in which the belt can be guided.

[0146] In FIG. 10b, the bending device (bending element) 24 is formed integrally with the plate-shaped element 40 such that the plate-shaped element 40 forms two projections 25 between which the belt can be guided.

[0147] In FIG. 10c, the bending device (bending element) 24 is formed separately from and attached to the plate-shaped element 40 so as to form two convex portions 25 and a concave portion 26 located between the two convex portions 25 and to be able to guide the belt through the concave portion 26.

[0148] In FIG. 10d, the bending device (bending element) 24 is formed integrally with the plate-shaped element 40 such that the plate-shaped element 40 has a concave gap 39 through which the belt can be guided.

[0149] In FIG. 10e, the bending device (bending element) 24 is formed separately from and attached to the plate-shaped element 40 such that a concave gap 39 is formed between the plate-shaped element 40 and the bending device (bending element) 24 so that the belt can be guided through the gap 39.

[0150] In FIG. 10f, the bending device (flexion element) 24 is formed separately from and attached to the plate-shaped element 40 such that the bending device (flexion element) 24 itself has a concave gap 39 through which the belt can be guided.

[0151] In FIG. 10g, the bending device (bending element) 24 is formed integrally with the plate-shaped element 40 such that the upper cross brace 19 forms a slot through which the belt can be guided and passed laterally if required.

[0152] In FIG. 10h, the bending device (bending element) 24 is formed integrally with the plate-shaped element 40 such that the upper cross brace 19 forms a slot through which the belt can be guided and passed from above if required.

[0153] Combinations of the above-mentioned embodiments are also conceivable and are made in accordance with the present invention.

[0154] At this point, it is to be noted that all the parts described above, and in particular the details shown in the drawings, when considered alone or in any combination, are claimed as further developments of the invention. Modifications of these are possible.

[0155] At this point, it should also be noted that all the above-described components and features, even if not specifically and individually specified as optional features in the respective contexts, in particular by using parentheses or the like, are to be considered as independent embodiments or further developments of the invention, in particular as defined in the preamble and claims of this description, each alone or in combination or in any smaller combination, in particular preferably, for example, by using parentheses or the like, even if there are no additionally described features in the respective contexts. Departures from this are also possible. It should be noted in particular that the words "in particular" and parentheses are intended to explicitly characterize features that are not essential in the respective contexts.

[0156] Finally, it should be noted that the present application for an industrial property right (or, in the case of a registration or grant of a patent, the present industrial property right) aims at the widest possible scope of protection for the invention, and requests that this be borne in mind when reading, in particular as far as (intermediate) generalizations of explicitly disclosed features or combinations of features are concerned. [Explanation of symbols]

[0157] 10... stroller, 11... frame, 12... fastening option part, 13... seat unit, 14... seat part, 15... opening, 16... back (backrest part), 17... lower part, 18... upper part, 19... upper cross brace, 20... joint, 21... storage space, 22... guide part (flexion point), 23... (another) guide part (flexion point), 24... bending device (flexion element), 25... convex part, 26... concave part (gap), 27 ...fabric element (fabric cover), 28...belt system, 29...waist belt, 30...shoulder belt, 31...integrated shoulder-waist belt, 32...crotch belt, 33...belt buckle, 34...connecting element, 35...guide, 36...central adjustment belt, 37...actuating part, 38...belt tightening device, 39...concave gap, 40...plate-shaped element, α...guide angle, L...length, L1...length, L2...length, Z1...arrow direction, X1...axis

Claims

1. A child accommodation device, in particular a stroller (10) and / or a child seat, for mounting on a stroller frame, said child accommodation device comprising a seat unit (13) and a belt system (28), The seat unit (13) comprises a seat (14) and a back (16) which is adjustable with respect to the seat (14) in terms of inclination; A child containment device, wherein the belt system (28) is assigned at least one compensation device configured to at least partially compensate for at least one lengthening of at least one belt section between two bending points or one bending point and a tightening point when the inclination is changed by correspondingly shortening another belt section between the two bending points or one bending point and the tightening point.

2. A child accommodation device for mounting on a stroller frame, in particular a stroller (10) and / or a child seat, preferably as claimed in claim 1, said child accommodation device comprising a seat unit (13) and a belt system (28), The seat unit (13) preferably comprises a seat (14) and a back (16) which is adjustable with respect to the seat in terms of inclination; A child restraint device, wherein at least one belt of the belt system (28) is bent with at least one bending device (24), and when adjusting the belt system, a contact portion of the at least one belt that comes into contact with the bending device (24) can be guided above the bending device with at least substantially no resistance and / or at least reduced resistance.

3. A child accommodation device for mounting on a stroller frame, in particular a stroller (10) and / or a child seat, preferably as claimed in claim 1 or 2, said child accommodation device comprising a seat unit (13) and a belt system (28), The seat unit (13) preferably comprises a seat (14) and a back (16) which is adjustable with respect to the seat in terms of inclination; A child restraint device, wherein at least one belt of said belt system (28) is bent with at least one bending device (24), said bending device (24) being at least partially formed by a bar material, preferably from a frame part.

4. A child accommodation device for mounting on a stroller frame, in particular a stroller (10) and / or a child seat, preferably as claimed in claim 1, 2 or 3, said child accommodation device comprising a seat unit (13) and a belt system (28), The seat unit (13) preferably comprises a seat (14) and a back (16) which is adjustable with respect to the seat in terms of inclination; At least one belt of the belt system (28) is bent with at least one bending device (24), the bending device (24) defining a gap having a contact surface that contacts the belt, and the gap (26) is at least partially covered by a fabric cover (27).

5. A child accommodation device for mounting on a stroller frame, in particular a stroller (10) and / or a child seat, preferably as claimed in claim 1, 2, 3 or 4, said child accommodation device comprising a seat unit (13) and a belt system (28), The seat unit (13) comprises a seat (14) and a back (16) which is preferably adjustable with respect to the seat in terms of inclination; The fastening point of the crotch belt (32) is connected to one / the back part (16) at a defined position and / or is located at the lower part of one / the back part (16) and / or when unfolded, rotates with the back (16); and / or and / or A child restraint device which is displaced upwardly relative to said seat portion (16).

6. said compensation device forms at least one first bending point (22, 23) located between a second bending point and a third bending point and / or between one / the second bending point and a fastening point, said first bending point (22, 23) being displaced relative to said back and / or seat when said back and seat are widened such that the length of said belt between said second and third bending points and / or the path of said belt between said second bending point and said fastening point is shortened, the first and / or second bending points are designed to rotate together with the back or to rotate together with the seat during the adjustment of the inclination, in particular to be mounted in a defined position relative to the back or the seat; and / or the third bending point and / or the fastening point is designed to rotate with the seat or to rotate with the back during the adjustment of the inclination, in particular to be mounted in a defined position relative to the back or the seat, A child containment device according to any one of the preceding claims, in particular claim 1, characterized in that the following preferably applies:

7. A child accommodation device according to any one of the preceding claims, in particular according to claim 1, characterized in that during tilt adjustment at least one bending point (22), which preferably rotates together with the back (16), is located lower than the tilt axis, at least in one configuration of the child accommodation device, and / or approaches the height of the tilt axis when the seat and back are unfolded, and / or is displaced upwards and / or forwards relative to the seat and / or moves away from the vertical left-right plane in which one / the tilt axis lies.

8. A child accommodation device according to any one of the preceding claims, in particular according to claim 1, characterized in that at least one bending point (23), which preferably rotates together with the seat part (14) during tilt adjustment, is present behind one / the tilt axis, at least in one configuration of the child accommodation device, and / or is displaced forward relative to the upper end of the back part (16) when the seat part and the back part are unfolded, and / or is displaced downward relative to the lower end of the back part, and / or has a constant distance of 0 cm or more from the height of one / the tilt axis.

9. A child restraint device according to any one of the preceding claims, in particular according to claim 1, characterized in that the fastening point of one / the crotch belt (32) and the bending point of at least one shoulder belt at least substantially overlap in at least one projection in the vertical front-to-rear plane.

10. the static coefficient of friction between the material of the contact portion and the material of the bending device (24) is preferably less than or equal to 0.5, more preferably less than or equal to 0.25, even more preferably less than or equal to 0.1 and / or greater than or equal to 0.01; and / or A child containment device according to any one of the preceding claims, in particular claim 2, characterized in that the coefficient of sliding friction between the material of the contact portion and the material of the bending device (24) is preferably less than or equal to 0.4, more preferably less than or equal to 0.20, even more preferably less than or equal to 0.08 and / or greater than or equal to 0.

005.

11. A child containment device according to any one of the preceding claims, in particular claim 2, characterized in that the surface of the bending tool (24) comprises a thermoplastic material, preferably ABS, PA, PE and / or PP.

12. Child containment device according to any one of the preceding claims, in particular claim 2, characterised in that the bending device (24) comprises at least one bending roll.

13. A child containment device according to any one of the preceding claims, in particular according to claim 3 or 4, characterized in that the belt does not come into contact with one / the fabric cover in the bending area.

14. 10. A child containment device according to any one of the preceding claims, characterized in that the belt system (28) is configured as a five-point belt or as a three-point belt and / or as a one-pull harness.

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