STROLLER FRAME AND STROLLER

Abstract

The invention relates to a stroller frame, comprising at least one motor, in particular an electric motor, for a supported drive of the stroller frame, at least one adjustment device for adjusting, in particular sliding and/or pivoting, at least one adjustable component of the stroller frame from a first position into at least one second position, and at least one coupling device, comprising at least one switching device, such that the potential drive output of the at least one motor is changed, in particular reduced, by at least one adjustment process using the adjustment device.

Claims

1. A stroller frame, comprising: at least one motor, in particular an electric motor, for supported drive of the stroller frame, at least one adjustment device for adjusting, in particular sliding or pivoting, at least one adjustable component of the stroller frame from a first position into at least one second position, and at least one coupling device, comprising at least one switching device, such that by at least one adjustment process by means of the adjustment device a change, in particular a reduction, of a potential drive power of the at least one motor is effected.

2. The stroller frame according to claim 1, wherein the coupling device is configured such that at least one adjustment process by the adjustment means results in the motor being switched off or the motor being transferred to an idle state.

3. The stroller frame according to claim 1, wherein the coupling device is configured such that a power supply for the motor is interruptible or interrupted or can be or is achieved by at least one adjustment process by means of the adjustment device.

4. The stroller frame according to claim 1, wherein the coupling device comprises at least one sliding contact or at least one plug contact or at least one switch or at least one cable or at least one rod.

5. The stroller frame according to claim 1, comprising: at least one motor, in particular an electric motor, for supported drive of the stroller frame, at least one adjustment device for adjusting, in particular sliding or pivoting, at least one adjustable component of the stroller frame between at least two different positions, and at least one sliding contact between the adjustable component of the stroller frame and another component of the stroller frame, wherein by the sliding contact in at least a first and a third position of the adjustable component an electrical contact is realized and, possibly, in at least a second position a contact is not realized.

6. The stroller frame according to claim 1, wherein the adjustment device is designed for adjusting, in particular shortening or folding, a frame or a frame part, in particular a pusher or a pusher component.

7. The stroller frame according to claim 1, wherein the adjustment device is designed for adjusting a braking device, in particular a parking brake.

8. The stroller frame according to claim 1, wherein the adjusting comprises a relative movement of the adjustable component of at least 3 cm, or a rotation of the adjustable component over an angle of at least 20°.

9. The stroller frame according to claim 1, wherein the first or second position(s) can be stably assumed, in particular lockable.

10. The stroller frame according to claim 1, wherein the first position relative to the adjustable component is a functional position or the second position relative to the adjustable component is a rest position, in particular storage, parking, blocking or intermediate position.

11. The stroller frame according to claim 1, comprising: at least one speed sensor device or at least one force sensor device, for detecting a direction or an amount of a force or a force component acting on a/the pusher, or for detecting a variable derived from this force or force component, in particular a change in the force or force component over time.

12. The stroller frame according to claim 1, comprising: at least one control device, for controlling, in particular regulating, a power of the at least one motor or a speed of the stroller frame.

13. A stroller, children's sports car, buggy or the like vehicle for children, comprising a stroller frame according to claim 1.

14. An adjustment device for adjusting, in particular sliding or pivoting, at least one adjustable component of a stroller frame or of a stroller according to claim 13, from a first position into a second position, for controlling a potential drive power of at least one motor.

15. A method for controlling a potential drive power of at least one motor of a stroller frame or a stroller according to claim 13, wherein the potential drive power is changed, in particular reduced, via at least one adjustment device for adjusting, in particular sliding or pivoting, at least one adjustable component of the stroller frame from a first position into a second position.

Description

[0086] In the following, the invention is described with reference to exemplary embodiments which are explained in more detail with reference to the figures. Hereby show:

[0087] FIG. 1 a schematic side view of an embodiment of a stroller according to the invention in a first position;

[0088] FIG. 2 the stroller according to FIG. 1 in a second position;

[0089] FIG. 3 a schematic side view of a further embodiment of the stroller according to the invention in a first position;

[0090] FIG. 4 the stroller according to FIG. 3 in a second position;

[0091] FIG. 5 a section of a schematic side view of a further embodiment of the stroller in a first position;

[0092] FIG. 6 the section according to FIG. 5 in a second position.

[0093] In the following description, the same reference numerals are used for identical and similarly acting parts.

[0094] FIG. 1 shows a schematic side view of an embodiment of a stroller according to the invention in a first position. The stroller frame comprises at least one fastening device 10 for receiving a (not shown) receiving unit for receiving a child (for example a carrying shell). Furthermore, the stroller frame comprises a frame 11 which in turn comprises at least one upper pusher section 12 (preferably comprising a pusher handle), at least one lower pusher section (pusher shaft) 13, at least one, preferably two, front wheel strut(s) 14 and at least one, preferably two, rear wheel strut(s) 15. A front wheel 16 is arranged on the respective front wheel strut 14, a rear wheel 17 is arranged on the respective rear wheel strut 15. At least one rear wheel 17 can be locked via a parking brake 18. Furthermore, at least one rear wheel 17 (preferably both rear wheels 17 in each case) has assigned to it a motor 19 which can drive the (corresponding) rear wheel. For (basic) switching-on of the motor 19, an actuating button is (optionally) provided. An accumulator (not shown in detail) may be provided for driving the motor 19.

[0095] The upper pusher section 12 is slideable relative to the lower pusher section 13 by means of a (here telescopic) adjustment device 20. Depending on the displacement, a first contact 22 of a (here electrical) coupling device 21 arranged on the upper pusher section is either (as in FIG. 1) in contact with a second contact 23 arranged on the lower pusher section 13 or not (as in FIG. 2).

[0096] Specifically, it can be seen that in the position according to FIG. 1, an electrical circuit is closed so that the motor 19 can be supplied with electrical power via a (dashed) connecting cable 24. Furthermore, the (respective) lower pusher section 13 is (optionally) hingedly connected to the respective front wheel strut or rear wheel strut via a rotatable joint 25.

[0097] The first contact 22 may be a movable, possibly spring-loaded contact, and the contact 23 may be a fixed contact (or vice versa). Compared to the second contact 23, the first contact 22 may be shorter, of the same length or longer, for example less than 0.5 times, preferably less than 0.2 times or more than 1.2 times, preferably more than 1.8 times as long as the second contact.

[0098] Specifically, first and second contacts 22, 23 can form a sliding contact, in particular establish an electrical contact over a displacement path of at least 2 cm, preferably at least 5 cm.

[0099] In the illustration in FIG. 1, it is preferably a functional or use position in which the stroller or stroller frame (with child) can be used. In contrast, FIG. 2 preferably shows an intermediate or rest position in which a power supply to the motor is preferably interrupted.

[0100] Overall, an electrical circuit can be interrupted or established by the contacts (sliding contacts, if applicable) 22, 23 on at least one lower pusher section (pusher shaft) as well as on the upper pusher section by sliding the upper pusher section relative to the corresponding lower pusher section. In this case, the upper pusher section is preferably pushed in (or pulled out) until the two contacts 22, 23 are positioned contacting (or not contacting) each other. It is also conceivable to arrange several or one almost continuous (sliding) contact on one (e.g. the upper) pusher section. Thus, an adjustment of the pusher height can be realized in a simple way.

[0101] FIGS. 3 and 4 show an alternative embodiment of a stroller frame or stroller according to the invention.

[0102] Here, the upper pusher section 12 is connected to a (dashed; possibly electrically conductive) cable 26. In the position according to FIG. 3 (use position or functional position), this cable 26 is in turn connected to an (electrically conductive) cable 27, namely via a plug connection 28 of a coupling device 21. Specifically, for this purpose, the cable 27 can be connected to a plug device at the end 26 facing the cable 26, and the cable 26 can be connected correspondingly at its facing end to a plug receptacle (and/or vice versa). FIG. 4 then shows the stroller or stroller frame in an intermediate or storage position with the plug device disconnected.

[0103] By pivoting (with possibly preceding and/or simultaneous and/or subsequent sliding) the upper pusher section 12 relative to the (respective) lower pusher section 13 by means of an adjusting device 20, the plug connection 28 engaged in the functional position (use position) is decoupled, so that the electrical circuit is interrupted in the intermediate or storage position. By unfolding again, the plug connection 28 closes again.

[0104] In the embodiment according to FIGS. 3 and 4, the cable 26 may be deflected and/or (partially) wound or windable to compensate for a relative position between upper and lower pusher sections, in case of a displacement. For example, at least one deflection roller may be provided.

[0105] FIGS. 5 and 6 show a section of a further embodiment. In this embodiment, the coupling unit 21 comprises a (preferably spring-mounted) switching unit 29, which can be interrupted via a (non-electrically conductive) interruption projection (contacting pin) 30. If the interrupting projection 30 (as can be seen in FIG. 6) is displaced into or toward the switching unit 29 (by displacing the upper pusher section relative to the lower pusher section by means of the adjustment device 20), it interrupts a switch 31 there. The switch 31 can be designed here in the manner of a swinging door and (in FIG. 6) be displaced by the interrupting projection 30, so that an electric circuit is interrupted.

[0106] FIG. 7 shows a schematic representation of an upper pusher section 12 and a lower pusher section 13, to which corresponding contacts, namely a second contact 23 and a first contact 22, are assigned. A sliding contact is realized all in all via the contacts 22, 23. The first contact 22 can be pretensioned via a spring, which (here: exemplarily) is supported on the lower pusher section 13. Due to the comparatively long extension (preferably at least 3 cm or at least 8 cm) of the second contact 23, a (sliding) contact can be achieved over a comparatively large displacement path.

[0107] In FIG. 7, a sliding contact is exemplary shown for contacts 22, 23 on the pusher sections 12, 13. However, a corresponding sliding contact can also be implemented on any other (adjustable) components (such as a front wheel strut, a rear wheel strut or a joint or on a braking device). Also, in FIG. 7, the upper pusher section and lower pusher section may just be interchanged (so that, for example, the spring-loaded contact 22 is located on the upper pusher 12).

[0108] In general, then, in FIG. 7, the structures indicated by reference signs 12 and 13 may be (any) adjustable components. Either the component at reference sign 12 or the component at reference sign 13 or both are adjustable (relative to each other).

[0109] At this point, it should be noted that all of the above-described parts, considered on their own and in any combination, in particular the details shown in the drawings, are claimed to be essential to the invention. Modifications thereof are familiar to those skilled in the art.

REFERENCE SIGNS

[0110] 10 fastening device

[0111] 11 frame

[0112] 12 upper pusher section

[0113] 13 lower pusher section (pusher shaft)

[0114] 14 front wheel strut

[0115] 15 rear wheel strut

[0116] 16 front wheel

[0117] 17 rear wheel

[0118] 18 parking brake

[0119] 19 motor

[0120] 20 adjustment device

[0121] 21 coupling device

[0122] 22 first contact

[0123] 23 second contact

[0124] 24 cable

[0125] 25 (rotatable) joint

[0126] 26 cable

[0127] 27 cable

[0128] 28 plug connection

[0129] 29 (spring-loaded) switching unit

[0130] 30 interruption projection (contact pin)

[0131] 31 switch