BABY OR DOLL'S PRAM

Description

[0001] The present invention relates to a stroller or doll's pram having the features of the preamble of patent claim 1, wherein the stroller or doll's pram is designed to be variable in its width. background

[0002] Conventional strollers and doll's prams are usually a fixed width and are generally designed to be unchangeable. These are always either single strollers for one child or doll, or twin strollers. The frame of the stroller or doll's pram is correspondingly wide and has attachments for either one insert or, in the case of a twin stroller, for two inserts. Extending a single stroller into a twin stroller may be necessary in certain circumstances, for example when a new family member arrives. Conversely, it may also be necessary to turn a twin stroller into a single stroller, for example when one child has outgrown the stroller. Adapting the stroller or doll's pram is usually not possible. The changed circumstances described can therefore only be dealt with by purchasing a single or twin stroller.However, this represents an unnecessary financial burden and is also not sustainable in view of the resources required. State of the art

[0003] WO 2010 / 047596 A2 discloses a buggy for transporting children, comprising a frame with first fastening elements for releasably securing a first load. For this purpose, the first load has a first holding device for accommodating a child. Furthermore, the frame is provided with second fastening elements for releasably securing a second load. The width of the buggy frame is adjustable between a first, relatively small frame width and a second, relatively large frame width. The second fastening elements are configured such that they can be used in both the first frame width and the second frame width for releasably securing the second load next to the first load. A disadvantage here is that the width of the buggy frame can only be changed with great effort.The frame cannot be mechanically adjusted to exactly two widths, as would be necessary for the configuration of single and twin carriages.

[0004] US 2002 / 0070531 A1 discloses a jogging stroller that can be expanded from a single seat unit to a double seat unit. The jogging stroller has a U-shaped handlebar assembly with a gripping area having a parting line therein for opening and spreading the handlebar, a handlebar insert arranged within the parting line of the gripping area to create a wider handlebar assembly for accommodating an additional seat. Furthermore, there is a rear axle assembly with an axle having opposite ends, each end carrying a large pneumatic tire, and the axle having a parting line for opening and spreading the axle. Furthermore, there is an axle insert arranged within the parting line of the axle to create a wider rear axle assembly. Furthermore, there are corresponding means for connecting the handlebar assembly to the rear axle assembly.The jogging stroller also includes a front wheel assembly including a front wheel frame, a housing having a front end sleeve, means for connecting the handlebar assembly to the front wheel assembly, and means for connecting the rear axle assembly to the front wheel assembly. A center bar is provided with a torsoward end connected to the handlebar insert and a distal end connected to the front end sleeve of the housing to provide longitudinal structural support for the jogging stroller when the jogging stroller is in dual-seat mode. Finally, a brace member is provided with a lower end frictionally connected to the axle insert and an upper end frictionally connected to the handlebar insert to provide vertical support for the stroller in dual-seat mode.Another disadvantage here is that the width adjustment is mechanically complex and cannot be easily done with a single movement. Furthermore, there are no predefined widths, so widths can also be set that disadvantageously do not form a single or double stroller.

[0005] WO 2001 / 024759 A1 discloses a walking aid for persons with limited walking ability, comprising a first and a second side part. The two side parts are connected via crossbars attached to the two side parts, wherein the crossbars can be moved parallel to one another, thus enabling adjustment of the distance between the first side part and the second side part, so that the width of the walking aid can be varied. The walking aid additionally has wheels and handlebars. The crossbars are moved relative to one another using an adjustment device formed by a gear with a handle lever, wherein the adjustment device is arranged on at least one rod on the second side part. The gear engages with teeth arranged on the crossbar on the first side part, which is connected to the crossbar with the gear.A disadvantage of this state of the art is that only a mechanism for widening is specified, whereby the technical teaching is not sufficient to describe a stroller or doll's pram that can be varied in width so that it can be used both as a single stroller and as a twin stroller.

[0006] GB 2 193 692 A discloses a single / double seat stroller that can be converted from a single seat to a double seat by extending telescopic struts, e.g., low-friction sliding struts, gas- or compression-strut struts, and attaching a suitable removable safety seat or carrycot. Folding connectors on each side of the stroller allow the stroller to be folded flat.

[0007] US 8 905 427 B2 describes a convertible single- and multi-seat stroller, comprising at least one chassis. The chassis, in turn, comprises a support unit for supporting at least one person, typically an infant, a wheel assembly coupled to the support unit, an engagement element for connecting the chassis to another such chassis, and a pivot element coupled to the support unit, which enables rotation of the support unit with respect to the chassis. The support unit can be rotatably reoriented to enable transport of the chassis, so that the support unit of the chassis and the other support unit of the other chassis can be aligned in a towing position or, alternatively, in a side-by-side position. Task

[0008] It is therefore an object of the present invention to provide a stroller or doll's pram which is designed to be variable in width so that the stroller or doll's pram can be adapted according to its use as a single or twin stroller. Solution

[0009] The above object is achieved by the features of the characterising part of patent claim 1.

[0010] Further advantageous embodiments of the invention are specified in the claims which refer back to claim 1.

[0011] The subject matter of the invention described below is applicable to both strollers and doll strollers. For this reason, both terms can be interpreted synonymously. The same applies if only a stroller is mentioned in general terms, rather than a stroller or doll stroller.

[0012] The present invention describes a stroller or doll's pram comprising a stroller frame consisting of several longitudinal and transverse beams and at least one length-adjustable cross-connection, by means of which the width of the stroller frame can be varied. Furthermore, the at least one length-adjustable cross-connection has at least two adapter receptacles for releasably attaching an insert, wherein the at least one length-adjustable cross-connection has at least one mechanism for adjusting the length of the length-adjustable cross-connection. The insert is designed as a stroller or doll's pram insert into which a child or a doll can be placed or seated.

[0013] Whenever reference is made to twin strollers below, this refers to strollers or doll strollers in which the children or dolls lie or sit side by side. The children or dolls can each sit or lie in a separate insert, but it is also conceivable for both to fit in a wider insert.

[0014] Advantageous embodiments of the stroller or doll's pram are described below. These are to be understood as alternative embodiments that can be used individually or in combination with one another.

[0015] The distance between the at least two adapter receptacles can be varied together with the widening of the frame of the stroller or doll's pram via the at least one length-adjustable cross connection. In this case, it is advantageous to provide an insert whose width can be varied to accommodate a child or a doll, which insert can be detachably fastened to the at least two adapter receptacles. This makes it possible to adapt the stroller or doll's pram to the child or doll accommodated therein. Furthermore, it is advantageous to reduce the width of the stroller or doll's pram, for example if it is to be parked in a space-saving manner or is to be transported in vehicles in confined spaces. Conversely, the stroller or doll's pram can be widened if space permits.

[0016] It is conceivable for the stroller or doll's pram to have a total of four adapter mounts. In this conceivable design, two inserts can be arranged on the stroller or doll's pram, creating a twin stroller. Two adapter mounts each accommodate one insert. The inserts are advantageously arranged next to each other, along the adjustable-length cross connection. As a twin stroller, the stroller or doll's pram should ideally not exceed a width of 80 cm, which is also the maximum width of the stroller or doll's pram. The reason for this dimension is that the clear passage width for doors in public buildings must not be less than 80 cm for safety reasons. Other common door widths are 60 cm, 80 cm and 100 cm, with 80 cm being the most common.This ensures that the stroller or doll's pram described here can always be driven through a door with a minimum width of 80 cm.

[0017] In an advantageous embodiment of the stroller or doll's pram according to claim 2, the at least one mechanism on the at least one length-adjustable cross-connection is a scissor mechanism. The scissor mechanism is designed to extend or contract the at least one length-adjustable cross-connection depending on its operation. By operating the scissor mechanism, the width of the stroller or doll's pram is changed via the length-adjustable cross-connection. The scissor mechanism can advantageously be operated with one hand, as only one lever, which is part of the scissor mechanism, needs to be moved. This ensures particularly simple and intuitive operation of the scissor mechanism. A user is thus able to change the width of the stroller or doll's pram without extensive technical expertise.

[0018] In a further advantageous embodiment, the scissors mechanism has two levers, a first and a second lever. In this case, it is also conceivable for the first lever to be longer than the second lever. The second lever is articulated, i.e. hingedly attached, to the first lever at one end. The articulation point is arranged at a distance from the two ends of the first lever. The opposite end of the second lever is articulated to the at least one length-adjustable cross-connection. One end of the first lever is also articulated to the at least one length-adjustable cross-connection. Advantageously, the two ends of the first and second levers, which are articulated to the at least one length-adjustable cross-connection, are arranged on two components of the at least one length-adjustable cross-connection that can move relative to one another.

[0019] The end of the first lever, which is opposite the hinged end on the at least one length-adjustable cross-connection, can be folded by hand around the hinge point on the at least one length-adjustable cross-connection. Folding the first lever opens or closes the scissor mechanism, whereby the ends of the first and second levers hinged on the at least one length-adjustable cross-connection are moved apart or towards each other. At the same time, the length of the at least one length-adjustable cross-connection is increased or decreased. By folding the first lever, the width of the stroller or doll's pram can thus be increased or decreased via the at least one length-adjustable cross-connection, which is operatively connected to the scissor mechanism. Advantageously, this only requires one manual movement.

[0020] In a further advantageous embodiment, the scissor mechanism is arranged below the at least one length-adjustable cross-connection. However, it is also conceivable for the scissor mechanism to be arranged laterally on the at least one length-adjustable cross-connection. Advantageously, the cross-connection faces the person who is to push the stroller or doll's pram.

[0021] It is provided that the at least one length-variable cross connection is designed telescopically consisting of at least two outer parts and at least one middle part, wherein the at least one middle part is at least partially received between the at least two outer parts.

[0022] The outer parts are advantageously designed as hollow profiles, particularly advantageously as tubes, which in turn accommodate the at least one central part, thus forming a telescopic arrangement. The at least one central part can also be designed as a hollow profile or as a solid profile. In the simplest design, the at least one length-adjustable cross-connection is formed from two outer parts and a central part. The profile shape of the hollow or solid profiles can be round, oval, or angular, with angular encompassing triangular, rectangular, square, or even polygonal profile shapes.

[0023] The at least two outer parts and the at least one central part are made of metal, advantageously of a light metal such as aluminum, titanium, or a corresponding light metal alloy thereof. It is also conceivable for the at least two outer parts and the at least one central part to be made of plastic or a fiber-reinforced composite material. The above-mentioned selection of materials is not intended to be limiting. Furthermore, it is also conceivable to combine the materials with one another. The outer parts and the at least one central part do not necessarily have to be made of the same material.

[0024] In a further advantageous embodiment, the two ends of the first and the second lever, which are articulated on the at least one length-variable cross connection, are each articulated on one of the at least two outer parts.

[0025] These two outer parts can be thought of as two components that can move relative to each other. When the scissor mechanism is opened, the ends of the two levers move apart, and the two outer parts to which the two levers—the first and second levers of the scissor mechanism—are hinged are also pushed apart. Conversely, when the scissor mechanism is closed, the two outer parts are pushed together and the ends of the two levers move toward each other.

[0026] It is also conceivable for a spring element to be arranged at each of the two outer ends of the at least one central part, which spring element is simultaneously accommodated by the at least two outer parts. Thus, the at least two spring elements on both sides of the one central part can exert a symmetrical, bilateral force on the at least one central part. As a result, the at least one central part is always positioned centrally between the at least two outer parts before, during, and after the telescopically designed, length-adjustable cross-connection is pushed together or apart.

[0027] In a further advantageous embodiment of the stroller or doll's pram, it is provided that the at least two adapter receptacles are arranged on the at least one middle part and / or on at least one outer part.

[0028] When arranging the adapter mounts on the outer parts, the adapter mounts are positioned as far apart as possible. This means that the adapter mounts are located at the opposite outer ends of the outer parts, or at least in this area, close to the outer ends.

[0029] In an embodiment with four adapter receptacles, two adapter receptacles are arranged on the outer parts, as described above, and two adapter receptacles are arranged centrally on at least one middle part of the at least one length-adjustable cross-connection. In this case, one adapter receptacle on the outer part and one adapter receptacle on the middle part are each suitable for accommodating an insert for a stroller or doll's pram via corresponding adapters. In the embodiment with four adapter receptacles, two inserts can be arranged side by side. This advantageously allows for the formation of a twin stroller.

[0030] In a further advantageous embodiment of the stroller or doll's pram, it is provided that the at least one length-variable cross connection is designed to be lockable in at least two positions, the first position being a basic position and the second position being a spread position that is wider than the basic position.

[0031] This allows the stroller or doll's pram to have two different widths. In the spread position, the stroller or doll's pram, or the frame of the stroller or doll's pram, advantageously does not exceed a total width of 80 cm. This ensures that the widened stroller or doll's pram fits through most doorways.

[0032] The locking mechanism is provided by the scissor mechanism. This mechanism has two stop points that limit the mechanical freedom of movement of the scissor mechanism. Both in the home position and in the spread position, the articulation points between the at least one length-adjustable cross-connection and the scissor mechanism are arranged along an imaginary straight line. This imaginary straight line runs parallel to the longitudinal extension of the at least one length-adjustable cross-connection. This arrangement of the articulation points is achieved when the scissor mechanism is maximally open or maximally closed. In these two positions, the scissor mechanism's freedom of movement is advantageously limited, so that it cannot be moved beyond these positions. This is achieved by two stop points.

[0033] The attachment points are located on the levers of the scissor mechanism and / or on the at least one length-adjustable cross-connection. In the home position, when the scissor mechanism is fully closed, one of the two levers engages a first attachment point. In the spread position, when the scissor mechanism is fully open, one of the two levers engages a second attachment point.

[0034] In a further advantageous embodiment of the stroller or doll's pram, it is provided that the at least two adapter receptacles are designed to be pivotable about the longitudinal axis of the at least one length-adjustable cross connection and / or to be displaceable along the longitudinal axis of the at least one length-adjustable cross connection.

[0035] In the embodiment with four adapter receptacles, at least the two middle adapter receptacles, which are arranged on the at least one middle section, are designed to be pivotable. The pivoting movement can be performed jointly with the at least one middle section. However, it is also conceivable for the pivoting movement to be decoupled from the at least one middle section. In both cases, the pivot axis is simultaneously the central axis or the rotation axis of the at least one middle section along its longitudinal extent. At least the two middle adapter receptacles are pivoted around this axis.

[0036] The pivoting movement has a pivot angle of 0° to 180°, advantageously from 0° to 90°. The two middle adapter receptacles are pivoted from a vertical orientation, in which they extend vertically upwards from at least one central section, by at least 90° to a horizontal orientation. However, it is also conceivable for the two middle adapter receptacles to be pivoted vertically downwards by more than 90°, up to a maximum of 180°.

[0037] For a pivoting movement decoupled from the at least one central part, it is conceivable that the two central adapter receptacles are held by at least one sleeve, which connects the two central adapter receptacles to the at least one central part. The adapter receptacles are designed to be pivotable via the at least one sleeve. In the simplest case, the at least one sleeve is designed as two nested rings that are designed to be displaceable relative to one another, with one ring being connected to the at least one central part and the other ring being connected to at least one of the two central adapter receptacles. The two central adapter receptacles can be arranged together on the at least one central part via a sleeve. However, it is also conceivable for each of the two central adapter receptacles to be arranged on the at least one central part via a separate sleeve.

[0038] Furthermore, the at least two adapter receptacles are movable along the longitudinal extent of the at least one length-adjustable cross-connection. This allows the distance between the at least two adapter receptacles to be changed and thus adapted to the width of the insert to be arranged on the adapter receptacles.

[0039] It is also conceivable that locking points are arranged in the region of the outer ends of the at least one length-adjustable cross-connection, by means of which the adapter receptacles can be locked. The locking points can be designed as fastening nipples that can engage and snap into corresponding recesses on the adapters. Furthermore, several locking points can be provided along the longitudinal extent of the at least one length-adjustable cross-connection, each of which defines a gap in which the adapter receptacles can be moved back and forth.

[0040] It is also conceivable that the adapter holders can be pivoted about the longitudinal axis of the cross connection, so that when not in use they can be pivoted downwards, towards the wheels of the stroller or doll's pram, and if necessary can also be locked so that they do not interfere when the stroller or doll's pram is in use.

[0041] In a further advantageous embodiment of the stroller or doll's pram, it is provided that the at least two adapter receptacles are designed to be lockable in at least two pivoting positions.

[0042] Advantageously, the at least two adapter receptacles can be moved into at least one use position or a non-use position. In the use position, the pivot angle is 0°. This means that the adapter receptacles extend vertically upward from the at least one length-adjustable cross-connection. In this use position, an insert for a stroller or doll's pram can be attached to the adapter receptacles or connected to the adapter receptacles using appropriate adapters.

[0043] In the non-use position, the at least two adapter receptacles have a pivot angle of at least 90° and a maximum of 180° relative to the vertical, upwardly oriented use position. They are folded away relative to the use position, thus exposing the area above the at least one length-adjustable cross-connection, on which the at least two pivoted adapter receptacles are arranged.

[0044] In an embodiment with four adapter receptacles arranged along the longitudinal extent of the at least one length-adjustable cross-connection, the two middle adapter receptacles are advantageously designed to be pivotable and lockable in at least two pivot positions, namely at least in the use position and in the non-use position. In the non-use position, the two middle adapter receptacles expose the area above the at least one middle part, allowing an insert to be fastened to the two outer adapter receptacles, so that the insert extends along the at least one length-adjustable cross-connection without the two middle adapter receptacles blocking this arrangement.

[0045] It is advantageous to design the at least two adapter receptacles so that they can be locked at least in the use position and in the non-use position by means of positive and / or frictional locking mechanisms. In the embodiment with four adapter receptacles, it is advantageous if the two middle adapter receptacles are each designed so that they can be locked in the use position and in the non-use position. The frame of the stroller or doll's pram can thus be designed as a single stroller or as a twin stroller, with the two middle adapter receptacles being in either the non-use position or the use position. In the use position of the two middle adapter receptacles, the stroller or doll's pram forms a twin stroller in which two inserts can be arranged next to each other.When not in use, the stroller or doll's pram forms a single stroller in which only one insert can be arranged. Locking screws, for example, can be provided as positive and / or frictional locking devices, which lock the pivoted adapter receptacles relative to non-pivoted components, such as the length-adjustable cross-connector or at least parts thereof. Locking knobs, for example, can also be provided, which engage in corresponding locking recesses, with the locking knobs being arranged on the pivotable components and the locking recesses on the non-pivotable components. However, the aforementioned arrangement is not to be understood as limiting, so that all arrangements that appear appropriate to a person skilled in the art are also possible.

[0046] In a further advantageous embodiment of the stroller or doll's pram, it is provided that the at least two adapter receptacles with the at least one length-adjustable cross connection are designed to be pivotable.

[0047] Here, the at least two adapter receptacles, together with the at least one length-adjustable cross-connection, form a fixed connection. When the at least two adapter receptacles are pivoted, the at least one length-adjustable cross-connection rotates about its own axis. The axis runs along the longitudinal extent of the at least one length-adjustable cross-connection.

[0048] In the embodiment with four adapter receptacles, the two middle adapter receptacles can advantageously be rotated together with the at least one middle part on which they are arranged. The at least one middle part can either be rotated coupled to the outer parts of the at least one length-adjustable cross-connection, so that the entire at least one length-adjustable cross-connection is rotated when the two middle adapter receptacles are pivoted. However, it is also conceivable for the at least one middle part to be rotatable decoupled from the outer parts. For this purpose, the at least one middle part is slidably received by the outer parts on the one hand along the longitudinal extent of the at least one length-adjustable cross-connection and on the other hand is rotatably received by the outer parts along a rotation axis. The rotation axis runs along the longitudinal extent of the at least one length-adjustable cross-connection.It allows the length-variable cross connection to rotate around itself.

[0049] In a further advantageous embodiment of the stroller or doll's pram, it is provided that the at least two adapter receptacles are designed to be pivotable via at least one pivot guide on the at least one length-variable cross connection.

[0050] The at least one pivot guide is advantageously designed as a guide groove into which a guide pin engages, which is movable along the guide groove or is guided by it. The guide groove is advantageously arranged on at least one outer part of the at least one length-adjustable cross-connection. The guide groove extends both along the longitudinal extent of the at least one length-adjustable cross-connection and around its rotational axis. It is advantageously designed as a spiral shape or as a Z-shape with obtuse angles along the surface of the at least one outer part of the at least one length-adjustable cross-connection.

[0051] The guide pin corresponding to the guide groove is advantageously arranged on the at least one central part, which is received by the at least one outer part with the guide groove. The guide pin extends radially outwards from the at least one central part, wherein it simultaneously engages in the guide groove. A movement along the longitudinal extent of the at least one length-adjustable transverse connection simultaneously allows the guide pin to slide along in the guide groove, wherein the shape of the guide groove causes a rotational movement of the at least one central part on which the guide pin is arranged. Thus, if the at least one central part is pushed into or pulled out of the at least one outer part of the at least one length-adjustable transverse connection, the at least one central part is simultaneously rotated relative to the at least one outer part.When at least one adapter receptacle is simultaneously arranged on the at least one central part, a change in the length of the at least one length-adjustable cross-connection simultaneously causes a pivoting movement of the at least one adapter receptacle on the at least one central part. The pivoting movement advantageously pivots the at least one adapter receptacle from a use position to a non-use position or vice versa.

[0052] It is also conceivable for the guide groove and guide pin to be arranged in exactly the opposite manner to the previously described embodiment. Thus, the at least one central part can also have a corresponding guide groove, into which a guide pin engages, extending radially inward from at least one outer part. The completed rotational movement of the at least one central part or the pivoting movement of the adapter receptacles arranged thereon is identical to the previously described movement. During a length-changing movement of the length-variable cross-connection, the at least one central part is simultaneously rotated or the adapter receptacles arranged thereon are pivoted accordingly.

[0053] In an advantageous embodiment with four adapter receptacles, the at least one pivoting guide on the at least one length-adjustable cross-connection moves the two middle connecting elements into a non-use position when shortening the at least one length-adjustable cross-connection into its basic position, pivoting them from the vertical orientation by at least 90° and a maximum of 180°. Accordingly, when the at least one length-adjustable cross-connection is widened into the spread position, the two middle adapter receptacles are moved into a use position in which they extend vertically upwards, allowing an insert for a stroller or doll's pram to be conveniently attached.

[0054] Advantageously, the two pivoting positions of the adapter receptacles—use position and non-use position—correspond to the home position and the spread position of the at least one length-adjustable cross-connection via the at least one pivoting guide. The pivoting movement of the at least two adapter receptacles can thus be effected by a length-adjusting movement of the at least one length-adjustable cross-connection.

[0055] In a further advantageous embodiment of the stroller or doll's pram, it is provided that the at least two connecting elements are coupled to the scissor mechanism, wherein a pivoting movement of the at least two connecting elements can be effected by the scissor mechanism.

[0056] For this purpose, the at least two adapter receptacles are operatively connected to the scissor mechanism in addition to being linked to the at least one length-adjustable cross-connection. Such a connection can be a rod or a pull cable, for example, with one end being connected to the scissor mechanism and the other end to one of the at least two adapter receptacles. It is also conceivable for each adapter receptacle to be connected separately to the scissor mechanism. If the connection is designed as a rod, this is advantageously bendable or flexible. When the scissor mechanism is opened, a force is exerted on at least one of the adapter receptacles via the connection, causing a pivoting movement of the at least two adapter receptacles into the use position.Conversely, when the scissor mechanism is closed, a force is exerted on at least one of the adapter receptacles via the connection, which causes a pivoting movement into the non-use position.

[0057] Advantageously, the two pivoting positions of the adapter receptacles—use position and non-use position—correspond to the home position and the spread position of the at least one length-adjustable cross-connection via the scissor mechanism. The pivoting movement of the at least two adapter receptacles can thus also be effected simultaneously by a length-adjusting movement of the at least one length-adjustable cross-connection via the scissor mechanism.

[0058] In a further advantageous embodiment with four adapter receptacles, the two outer connecting elements are advantageously decoupled from the length-adjustable cross-connection. This allows the entire length-adjustable cross-connection to rotate around its own longitudinal axis without simultaneously pivoting the two outer adapter receptacles. Only the two middle adapter receptacles pivot according to the rotational movement of the length-adjustable cross-connection. The two outer connecting elements retain their original orientation, preferably vertically upward.

[0059] In a further advantageous embodiment, the two outer adapter mounts can be pivoted around the longitudinal axis of the outer parts. For example, it is conceivable that the two outer adapter mounts, like the two middle adapter mounts, can be pivoted by 90° to a maximum of 180°. This is particularly advantageous when the frame of a stroller or doll's pram is folded to save space. This allows all adapter mounts to be folded or pivoted in with the stroller.

[0060] Further advantages, features and design options emerge from the following description of figures of non-limiting embodiments. Brief description of the drawings

[0061] In the drawings shows: Fig. 1A perspective view of the stroller or doll's pram as a single stroller Fig. 2A perspective view of the stroller or doll's pram as a twin stroller Fig. 3A frontal view of the stroller or doll's pram as a single stroller Fig. 4A frontal view of the stroller or doll's pram as a single stroller with one insert Fig. 5A perspective view of the stroller or doll's pram as a twin stroller with two inserts arranged next to each other, each in the lying position Fig. 6A perspective view of the stroller or doll's pram as a twin stroller with two inserts arranged next to each other in the sitting and lying position Fig. 7A perspective view of the stroller or doll's pram as a single stroller with one insert in the lying position Fig. 8A perspective view of the length-adjustable cross connection in a spread position Fig. 9A perspective view of the length-adjustable cross connection in a basic position

[0062] Elements provided with the same reference numerals in the drawings essentially correspond to one another unless otherwise stated. Furthermore, components that are not essential to understanding the technical teaching disclosed herein are omitted. Reference numerals will not be repeated for all elements already introduced and illustrated, provided that the elements themselves and their function have already been described or are known to a person skilled in the art. Detailed description of implementation examples

[0063] Fig. 1shows a perspective view of the stroller or doll's pram as a single stroller. The stroller frame 1 has a λ-shape when viewed from both sides, with the two sides being connected by horizontal cross braces. The cross braces are each variable in length and are arranged at the outer ends of the λ-shape, i.e. at the top and bottom, as well as in the middle of the lower area. A wheel is arranged at each of the lower ends of the λ-shape, so that the stroller frame 1 has a total of four wheels. The uppermost length-variable cross brace of the stroller frame 1 simultaneously forms a handle for pushing the stroller frame 1 of the stroller or doll's pram.

[0064] The intersection points of the lower legs of the λ-shape are connected to each other via a length-adjustable cross connection 2. This is the essential component of the carriage frame 1 according to the invention.

[0065] The length-adjustable cross connection 2, like the length-adjustable cross struts, is designed telescopically, with at least two outer parts 7 accommodating at least one middle part 8 between their centers (not shown here, as it is completely accommodated by the two outer parts 7). Also not shown are spring elements in the outer parts 7, which act on the middle parts 8 from both sides with equal force, so that they are always positioned centrally between the outer parts 7 when they are pushed together or apart. In the embodiment shown, the outer parts 7 are designed as tubes.

[0066] The length-adjustable cross-connection 2 further has an adapter receptacle 6 at each of its outer ends of the longitudinal extension, both of which project vertically upwards. Two further adapter receptacles 6 are arranged centrally, which are pivoted by 90° relative to the adapter receptacles 6 at the outer ends of the longitudinal extension of the length-adjustable cross-connection 2. They thus free up the area above the length-adjustable cross brace 2 at this point. The adapter receptacles 6 are suitable for receiving and locking one or more inserts 10 for a stroller or doll's pram (not shown here).

[0067] Arranged beneath the length-adjustable cross-connection 2 is a scissor mechanism 3, by means of which a change in the length of the length-adjustable cross-connection 2 can be effected. The scissor mechanism 3 has at least a first lever 4 and a second lever 5, wherein the second lever 5 is concealed by the length-adjustable cross-connection 2 in the illustration shown. By folding the first lever 4, the length-adjustable cross-connection 2 can be pushed apart or pushed together using the scissor mechanism 3. The first lever 4 is articulated at one end to an outer part 7. The second lever 5 is correspondingly articulated at one end to the other outer part 7. At the same time, the second lever 5 is articulated at the other, opposite end to the first lever 4, so that one end of the first lever 4 remains free. The first lever 4 can be gripped and moved or folded over by a user at this free end.If the first lever 4 is moved, the scissor mechanism 3 opens or closes accordingly, whereby the ends of the first lever 4 and the second lever 5 hinged to the outer parts 7 are moved towards or away from each other, which in turn causes a change in the length of the length-adjustable cross-connection 2. By turning the first lever 4 by 180°, the length-adjustable cross-connection 2 and thus the entire carriage frame 1 are moved from a basic position to a spread position or vice versa. They simultaneously form the minimum and maximum widths of the carriage frame 1. In these positions, the first lever 4 is oriented parallel to the longitudinal extent of the length-adjustable cross-connection 2.

[0068] In the basic position, frame 1, and thus the stroller or doll's pram, is designed as a single pram. In the spread position, frame 1, and thus the stroller or doll's pram, is designed as a twin pram.

[0069] Such training as a twin stroller is in Fig. 2 which shows a perspective view of the stroller or doll's pram with the length-adjustable cross connection 2 in the spread position. The stroller frame 1 shown essentially corresponds to the stroller frame 1 from Fig. 1 .

[0070] In contrast to Fig. 1The first lever 4 is flipped 180°, opening the scissor mechanism 3. The ends of the first lever 4 and the second lever 5, which are hinged to the outer parts 7, are aligned diametrically opposite each other, which in turn causes a change in the length of the variable-length cross-connection 2. The carriage frame 1 thus has its maximum width and is in the spread position.

[0071] The length-adjustable cross connection 2 is pushed apart in the spread position, so that the middle section 8 protrudes telescopically between the outer sections 7. The two middle adapter receptacles 6 are pivoted such that, like the two outer adapter receptacles 6, they point vertically upwards. Due to the spring elements housed in the two outer sections 7 and the resulting symmetrical force applied to both sides of the middle section 8, the latter is always positioned centrally between the outer sections 7. The same applies to the length-adjustable cross struts on the carriage frame 1, which are also pushed apart in the spread position.

[0072] In Fig. 3 A frontal view of the stroller or doll's pram is shown as a single pram. The view is a frontal view of the stroller or doll's pram or the pram frame 1 from Fig. 1 , where in contrast to Fig. 1the two length-adjustable cross braces, which are arranged centrally in the lower area of ​​the carriage frame 1, have been omitted. This view shows the scissor mechanism 3 with the first lever 4 and the second lever 5. The free end of the first lever 4 points outwards, away from the two middle adapter receptacles 6. The first lever 4 and the second lever 5 point in the same direction and are arranged parallel to the longitudinal extent of the length-adjustable cross connection 2 and to its outer parts 7. The length-adjustable cross connection 2 is pushed together. The carriage frame 1 has its smallest width and is in the basic position.

[0073] Fig. 4 shows a frontal view of the pram or doll's pram as a single pram with an insert 10. This view corresponds to the same view as in Fig. 3with the difference that an insert 10 for a stroller or doll's pram is accommodated by the two adapter receptacles 6 at the outer ends of the longitudinal extension of the length-adjustable cross-connection 2. Only parts of the insert 10 are shown, namely adapters connected to the adapter receptacles 6, which in turn are connected to each other via a cross-connection. The adapter and cross-connection of the insert 10 form a U-shape in profile. The insert 10 is placed onto the adapter receptacles 6 from above and connected to them.

[0074] In Fig. 5A perspective view of the stroller or doll's pram as a twin stroller with two inserts 10 arranged side by side, each in the reclining position, is shown. For better visibility, the inserts 10 are shown without a fabric cover. The inserts 10 each have a rectangular frame at the top, which is pivotally attached in the middle to two opposing, vertical adapters. In the lower area of ​​each insert 10, a base with a folding axis is arranged. The base is held by a fabric cover, which is attached to the frame and is not shown here.

[0075] The inserts 10 are placed with their adapters on the adapter receptacles 6, so that the inserts 10 are arranged next to each other at the height of the length-adjustable cross-connection 2. For this purpose, all adapter receptacles 6 are necessarily positioned vertically upwards. At the same time, the length-adjustable cross-connection is pushed apart, so that the trolley frame 1 is in the spread position. This provides sufficient width for the trolley frame 1 to be able to arrange two inserts 10 next to each other, as shown.

[0076] Fig. 6shows a perspective view of the stroller or doll's pram as a twin stroller with two inserts 10 arranged side by side in the sitting and lying position. Essentially, it shows the stroller frame 1 with the inserts 10 arranged therein from a perspective view, with the uppermost cross brace of the stroller frame 1 pointing towards the viewer. The insert 10 on the left, as seen from the viewer, has an inclined frame and is in a sitting position. The other insert 10 is, as already shown in Fig. 5 shown in a lying position.

[0077] In Fig. 7 is a perspective view of the stroller or doll's pram as a single stroller with an insert 10 in the lying position. This view essentially corresponds to the view from Fig. 5, wherein the stroller frame 1 is in the basic position in which the length-adjustable cross-connection 2 is pushed together. The two middle adapter receptacles 6 are pivoted by 90° relative to the two outer adapter receptacles 6 so that they are aligned horizontally and create space for the insert 10 arranged above them. They are in a non-use position. The insert 10 is arranged centrally on the length-adjustable cross-connection 2 above the two outer adapter receptacles 6. They are shifted slightly towards the middle of the length-adjustable cross-connection 2. In contrast to the configuration of the stroller frame 1 in the spread position, the two outer adapter receptacles 6 are not arranged directly at the outermost ends of the longitudinal extension of the length-adjustable cross-connection 2, but are shifted slightly inwards towards the middle. This represents a possible embodiment of the stroller or doll's pram orof the associated carriage frame 1 with length-adjustable cross connection 2.

[0078] In the Fig. 8a perspective view of the length-adjustable cross-connection 2 is shown in the spread position, in which the length-adjustable cross-connection 2 has its greatest longitudinal extent. The length-adjustable cross-connection 2 has two outer parts 7 and a middle part 8, wherein the middle part 8 is telescopically received at its two opposite ends by an outer part 7 each. The outer parts 7 and the middle part 8 are cylindrical, with at least the outer parts 7 being designed as tubes. Spring elements are advantageously provided within the outer parts 7, which press symmetrically from both sides onto the middle part 8 so that the middle part 8 is always arranged centrally between the two outer parts 7. The outer parts 7 can thus be moved towards and away from one another, with the middle part 8 always being arranged centrally.

[0079] The length-adjustable cross-connection 2 shown is advantageously intended for a carriage frame 1 of a stroller or doll's pram, which is thereby designed to be variable in width. In the basic position of the length-adjustable cross-connection 1, the carriage frame 1 of the stroller or doll's pram has its smallest width. In the spread position shown here, the carriage frame 1 of the stroller or doll's pram has its greatest width.

[0080] An adapter receptacle 6 is arranged on each of the two outer parts 7. They are located in the area of ​​the outer ends of the length-adjustable cross-connector 2 and the outer parts 7, respectively. At the same time, these adapter receptacles 6 extend vertically upward from the respective outer part 7, so that an insert 10 for a stroller or doll's pram can be attached and secured from above.

[0081] As seen from the observer, a scissor mechanism 3 is arranged below the length-adjustable cross-connection 2. The scissor mechanism 3 has a first lever 4 and a second lever 5, with one end of the second lever 5 being pivoted to the first lever 4. The opposite end is pivoted to the left outer part 7 as seen from the observer. The first lever 4, in turn, is pivoted opposite the first lever 4 with an outer end to the right outer part 7 as seen from the observer. The free end of the first lever 4 is aligned essentially parallel to the second lever 5 or is designed as an imaginary extension of the second lever 5 and points in the direction of the pivot point between the second lever 5 and the outer part 7. The pivot points of the scissor mechanism 3 lie on an imaginary straight line parallel to the longitudinal extent of the length-adjustable cross-connection 2 shown.The scissor mechanism 3 is open in the embodiment shown, whereby the length-adjustable cross-connection 2 is in the spread position. The carriage frame 1 of the children's or doll's pram, which has the at least one length-adjustable cross-connection 2, has its maximum width in this configuration and is advantageously designed as a twin pram that can accommodate two inserts 10. For this purpose, the two middle adapter receptacles 6 are aligned vertically upwards, parallel to the two outer adapter receptacles 6. The middle part 8 is pushed out telescopically from the outer parts 7 and arranged centrally between the outer parts 7. In this spread position, it is possible to arrange two inserts 10 next to one another via the adapter receptacles 6.

[0082] In the illustrated embodiment, the first lever 4 and the second lever 5 are advantageously constructed from flat iron. However, round rods or tubes can also be used instead of flat iron. This is not intended to be limiting. All other embodiments for the levers 4, 5 are possible, as would be considered appropriate by a person skilled in the art.

[0083] Furthermore, the two outer parts 7 each have two sets of two diametrically opposed locking points 9 in the form of cylindrical elevations. The adapter receptacles 6 can be attached to these locking points 9 via corresponding cylindrical recesses. The locking points are each arranged in the region of the outer end of the respective outer parts 7 and are spaced apart from one another. The distance between two locking points 9 on an outer part 7 defines a space in which an adapter receptacle 6 is received. It can be moved back and forth between the two locking points 9 and can be arranged either at one locking point, which is arranged towards the outer end of the outer part 7, or correspondingly opposite at the other locking point 9 towards the center of the length-adjustable cross-connection 2, depending on the number and / or width of the insert 10 to be arranged on the adapter receptacles 6.

[0084] In the configuration of the carriage frame 1 as a twin carriage with maximum longitudinal extension of the length-adjustable cross-connection 2, the outer adapter receptacles 6 are advantageously attached to the locking points 7 arranged towards the outer ends of the outer parts 7. In the opposite configuration of the carriage frame 1 as a single carriage with minimum longitudinal extension of the length-adjustable cross-connection 2, the outer adapter receptacles 6 are advantageously attached to the locking points 9 arranged towards the center, as shown below in the Fig. 9 shown.

[0085] In the Fig. 9 A perspective view of the length-adjustable cross-connection 2 is shown in the basic position, which has a reduced width or longitudinal extent compared to the spread position. This view shows the length-adjustable cross-connection 2 as already shown in Fig. 8disclosed, but in a position with a smaller width than the spread position. Here, the first lever 4 is rotated by 180° relative to the position in Fig. 8 Folded over - pointing to the right as seen from the viewer, whereby the two ends of the first lever 4 and the second lever 5, which are each arranged on the outer parts 7 of the length-adjustable cross-connection 2, are moved toward each other, which in turn pushes the two outer parts 7 together. As a result, the length-adjustable cross-connection 2 has a reduced longitudinal extension.

[0086] Furthermore, the two middle adapter receptacles 6 are pivoted 90° horizontally, thus freeing the area above the length-adjustable cross-connection 2, so that an insert 10 can be accommodated at this point, which is held on the outer parts 7 via the two outer adapter receptacles 6. The insert 10 is not shown here.

[0087] Furthermore, the two outer adapter receptacles 6 are locked at the locking points 9, which are located further inward toward the center of the length-adjustable cross-connection 2. This allows the outermost locking points 9 to be seen at the outer ends of the longitudinal extension of the length-adjustable cross-connection 2. List of reference symbols

[0088] 1Cart frame 2Adjustable cross connection 3Scissor mechanism 4First lever 5Second lever 6Adapter holder 7Outer part 8Middle part 9Locking point 10Insert

Claims

1. Baby or doll carriage comprising a carriage frame (1) consisting of several longitudinal bars and crossbars and at least one cross-connector (2) which is variable in length by means of which the width of the carriage frame (1) can be varied, wherein the at least one length-adjustable cross-connector (2) has at least two adapter receptacles (6) for the detachable attachment of an insert (10), wherein the at least one length-adjustable cross-connector (2) has at least one mechanism for adjusting the length of the length-adjustable cross-connector (2), characterized in that the at least one length-adjustable cross-connector (2) is designed in a telescopic manner, consisting of at least two outer parts (7) and at least one middle part (8), wherein the at least one middle part (8) is at least partially mounted between the at least two outer parts (7), wherein a spring element is arranged at the two outer ends of the at least one middle part (8), which is simultaneously mounted by the at least two outer parts (7), the at least two spring elements on both sides of the one middle part (8) cause a symmetrical, bilateral force applied to the at least one middle part (8) so that the at least one middle part (8) is always positioned centrally between the at least two outer parts (7) before, during, and after the telescopically designed, length-adjustable cross-connector (2) is pushed together or pulled apart.

2. Baby or doll carriage according to patent claim 1, characterized in that the at least one mechanism at the at least one length-adjustable cross-connector (2) is a scissor mechanism (3).

3. Baby or doll carriage according to patent claim 1, characterized in that the at least two adapter receptacles (6) are arranged on the at least one middle part (8) and / or each on at least one outer part (7).

4. Baby or doll carriage according to patent claim 1, characterized in that the at least one cross-connector (2) is designed to be lockable in at least two positions, wherein the first position being a basic position, and the second position being a spread position which is wider than the basic position.

5. Baby or doll carriage according to patent claim 1, characterized in that the at least two adapter receptacles (6) are designed to be pivotable around the longitudinal axis of the at least one length-adjustable cross-connector (2) and / or displaceable along the longitudinal axis of the at least one length-adjustable cross-connector (2).

6. Baby or doll carriage according to patent claim 5, characterized in that the at least two adapter receptacles (6) are designed to be lockable in at least two pivot positions.

7. Baby or doll carriage according to patent claim 5, characterized in that the at least two adapter receptacles (6) are designed to be pivotable with the at least one length-adjustable cross-connector (2).

8. Baby or doll carriage according to patent claim 3 and 5, characterized in that the at least two adapter receptacles (6) are designed to be pivotable via at least one pivot guide on the at least one length-adjustable cross-connector (2).

9. Baby or doll carriage according to patent claim 2 and 5, characterized in that the at least two adapter receptacles (6) are designed to be coupled to the scissor mechanism (3), wherein a pivoting motion of the at least two adapter receptacles (6) can be effected by the scissor mechanism (3).