WO2025163174A1 - Stroller - Google Patents

Abstract

The invention relates to a stroller comprising: at least one wheel, preferably three wheels, more preferably four wheels; at least one drive device, in particular at least one motor, preferably an electric motor; and an actuation device, wherein the at least one drive device is designed to drive at least one wheel of the stroller, wherein the actuation device can assume a neutral position, a first position, in particular a first maximum position, and a second position, in particular a second maximum position, wherein, starting from the neutral position, the second position is preferably opposite the first position, wherein, starting from the neutral position, the actuation device can be moved in a first direction, preferably towards the first position, and/or in a second direction, preferably towards the second position, and the at least one drive device is controlled on the basis of the position of the actuation device, wherein a position of the actuation device corresponds to a requested drive power and/or braking power in a forward or rearward direction.

Description

stroller

Description

State of the art

Strollers in general, but also strollers with assisted drives, have been known for many years, including from DE 1817722 U. Various state-of-the-art options for controlling the assisted drive are also known. For example, the assisted drive can be controlled via sensors in a push bar section of the stroller or via manual control devices such as a thumb throttle.

EP 2332806 A2, for example, discloses a multiple-use stroller with an assist drive, in which a thumb throttle is proposed for controlling the assist drive. US 8033348 B1 also discloses a stroller with a thumb throttle as a control for the assist drive. One problem with controlling the assist drive using the known manual control devices (e.g., thumb throttle) is that they can only be operated in one direction. This severely limits the options for controlling the assist drive. For example, with the known solutions, the assist drive can only be controlled so that the stroller can be assisted in the direction of travel (i.e., forward). However, if the stroller user also requires assistance against the direction of travel (i.e., backward), this cannot be achieved with the known solutions.

A stroller is understood to mean all types of pushchairs, e.g. classic strollers, sports strollers, joggers and buggies or vehicles that are used to transport babies and toddlers by pushing them.

Task It is an object of this invention to solve the aforementioned problem. A further object of the invention is to propose a stroller with a power assist system and a versatile, cost-effective, convenient, and safe control of the power assist system.

Solution

The object is achieved by the subject matter according to one of the respective independent claims. In particular, the object is achieved by a stroller having at least three wheels, preferably four wheels, at least one drive device, in particular a motor, preferably an electric motor, and an actuating device. The at least one drive device is designed to drive at least one wheel of the stroller. The actuating device has a zero position, as well as a first position starting from the zero position, in particular a first maximum position, and a second position, in particular a second maximum position, wherein the second position starting from the zero position is preferably opposite the first position. The control of the at least one drive device is based on the position of the actuating device. In this case, a position of the actuating device can preferably correspond to a requested drive power and/or braking power forwards or backwards (or the drive power or braking power can depend on the position, at least over a range of an entire range of movement).

Braking power can be understood as drive power applied in the opposite direction to the stroller's direction of movement, thereby resulting in deceleration. Alternatively or additionally, braking power can also be understood as the rate at which kinetic energy is extracted from the stroller, preferably independent of the direction of movement. In this case, the braking power can be provided by a generator operation of the drive system, in which kinetic energy is converted into electrical or thermal energy.

"Opposite" here means that if the actuating device is moved from the zero position to the first position by moving at least part of the actuating device, a movement in the opposite direction is necessary to move it from, for example, the zero position to the second position. This applies to both linear displacements (e.g., left/right, forward/backward, etc.) and rotational movements around an axis (e.g., forward/backward rotation, clockwise/counterclockwise, etc.).

By means of an embodiment according to the invention, the driving behavior of the stroller can be controlled simply and precisely. An important aspect of the present invention is that by actuating the same element (namely the actuating element), both the drive power (i.e., power for accelerating the stroller) and the braking power (i.e., power This has the advantage of increasing user-friendliness, as separate devices for driving or braking are no longer required. Furthermore, the drive mechanism can be used to both drive and brake the stroller (for example, by driving the stroller in the opposite direction of travel), simplifying the stroller overall and saving components and thus costs.

In embodiments, the actuating device is movable from the zero position in a first direction, preferably toward the first position, in particular the first maximum position, and/or in a second direction, preferably toward the second position, in particular the second maximum position. The movement of the actuating device in the first direction, starting from the zero position, can correspond to the stroller being driven forward by the drive device, and/or the movement of the actuating device in the second direction, starting from the zero position, can correspond to the stroller being driven backward by the drive device.

The zero position corresponds to the position of the operating device in which no signal for driving and/or braking the stroller by the drive device is sent from the operating device, even during operation.

Assigning the movement of the actuating device to a drive direction enables more intuitive control by the user. In particular, this also results in improved ergonomics, as there is no constant one-sided strain on the user. In particular, this embodiment can provide for the user to only have to actuate the actuating device in a direction opposite to the stroller's current direction of movement to decelerate the stroller or request braking.

The object is achieved alternatively or additionally in particular by a stroller which has at least three wheels, preferably four wheels, a drive device, in particular a motor, more preferably an electric motor, and an actuating device. The drive device is designed to drive at least one wheel of the stroller. The actuating device comprises a zero position and at least one first position starting from the zero position, in particular a first and/or a second position, wherein the second position starting from the zero position is preferably opposite to the first position. The drive device is controlled as a function of the position of the actuating device, wherein a position of the actuating device corresponds to a requested drive power and/or a requested braking power of the drive device. In embodiments, a movement of the actuating device starting from the zero position in a first direction, preferably in the direction of the first position, in particular a first maximum position, corresponds to a requested drive power forward and/or a requested braking power, and/or a movement of the actuating device starting from the zero position in a second direction, preferably in the direction of the second position, in particular a second maximum position, corresponds to a requested drive power rearward and/or a requested braking power.

This allows for more intuitive control of the stroller.

In particular, the stroller can have a (manual) selection device which is designed such that, when the selection device is actuated or not actuated, a drive power or a braking power is requested by moving the actuating device. Preferably, when the selection device is not actuated, a drive power is requested and when actuated, a braking power is requested by moving the actuating device. Additionally or alternatively, the (manual) selection device can comprise a first and a second position, wherein in the first position of the selection device, a drive power and/or in the second position, a braking power of the drive device can be requested by moving the actuating device. Preferably, the (manual) selection device can be designed as a component of the actuating device, but optionally also as a separate element which is arranged on the stroller, in particular on a handle area of a push bar section.

Such a device reduces the risk of accidental misuse by the user. It also prevents, for example, the child from moving the stroller independently and without user intervention by operating the control device, either accidentally or intentionally, by touching the control device. The preferred division of the control device and the selection device allows the user to easily switch between a braking mode and a driving mode. This, in particular, prevents the user from accidentally accelerating or decelerating the stroller.

The object is also achieved in particular by a stroller having at least three wheels, preferably four wheels, a drive device, in particular a motor, preferably an electric motor, and preferably one or more sensors, and an actuating device. The drive device is designed to drive at least one wheel of the stroller. The actuating device comprises a zero position and at least one first position starting from the zero position, in particular a first and/or second position, wherein the second position starting from the zero position is preferably opposite to the first position. The drive device is controlled in such a way that, depending on Depending on the various driving parameters of the stroller and the position of the operating device, either a drive power or a braking power is requested and/or transmitted to at least one wheel.

Driving parameters provide information about the current operating status of the stroller or its movement. Driving parameters can include, for example, the speed of the stroller, the direction of movement of the stroller, the speed of the drive system, the power output of the drive system, the charge level of any energy storage device (preferably a battery), etc.

The control device can be designed to record the driving parameters itself, for example to calculate them, or to receive them from an external source (for example a sensor).

By combining the driving parameters and the position of the control device, a wide range of control options can be easily implemented to improve the ergonomics of the stroller, offer greater safety, or enable more efficient operation. For example, by comparing the current speed with the current speed, the stroller can be prevented from operating at excessively high speeds. Alternatively, the acceleration behavior can be adapted to the charge level of any energy storage device, if present, in order to drive as energy-efficiently as possible when the charge level is low (e.g., half or quarter full). Alternatively, or in addition to this, the driving parameter can also be composed of a large number of individual parameters.

In embodiments, the stroller comprises a control device which is configured to control the drive device depending on a position of the actuating device.

The control device can additionally be configured to detect and/or receive various driving parameters of the stroller, in particular a speed and/or a direction of travel, e.g. via a direction of rotation and/or rotational speed of at least one wheel, in order to control and/or regulate the drive device depending on the position of the actuating device and the, preferably current, value of the driving parameter.

Additionally or alternatively, the stroller may comprise at least one sensor device, preferably a Hall sensor unit, which can detect various driving parameters of the stroller, in particular a speed and/or a direction of travel, e.g. via a direction of rotation and/or rotational speed of at least one wheel, and/or transmit, preferably to the control device. Preferably, the at least one sensor device can be arranged on and/or within and/or in the vicinity of the drive device. By arranging it in the vicinity of the drive device, a simpler overall construction can be achieved. because a comparatively short distance has to be bridged and the risk of damaging a cable is reduced.

In embodiments, the control device is designed and/or the drive device is controlled in such a way that

- no drive power and/or braking power of the drive device can be requested and/or transferred to at least one wheel by moving the actuating device starting from the zero position, in particular in a first and/or second direction, when the stroller is stationary and/or the current speed of the stroller is 0 km/h and/or no direction of travel of the stroller and/or no direction of rotation of at least one wheel is given and/or can be detected, and/or

- a drive power and/or braking power of the drive device can be requested and/or transmitted to at least one wheel by moving the actuating device, in particular in a first and/or second direction, when the stroller is not stationary and/or when the current speed of the stroller is greater than 0 km/h and/or a direction of travel of the stroller and/or a direction of rotation of at least one wheel is given and/or can be detected, and/or

- a movement of the actuating device starting from the zero position, in particular in a first direction, which corresponds to a requested drive power of the drive device forward, results in a transmission of the drive power (forward) to at least one wheel if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel corresponds to the direction of the requested drive power, and/or results in a transmission of braking power to the at least one wheel if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel does not correspond to the direction of the requested drive power, in particular is opposite to this, and/or

- a movement of the actuating device starting from the zero position, in particular in a second direction, which corresponds to a requested drive power to the rear, results in a transfer of the drive power (to the rear) to at least one wheel if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel corresponds to the direction of the requested drive power, and/or results in a transfer of braking power if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel does not correspond to the direction of the requested drive power, in particular is opposite to this.

This can be used to prevent the stroller from accidentally starting or braking. For example, it can be ensured that the stroller must first be pushed in the desired direction before any drive power is applied by the This prevents, for example, the child from moving the stroller independently and without user intervention by operating the control device.

In embodiments, the relationship between the position of the actuating device and the requested drive power is linear, with a maximum position of the actuating device corresponding to a maximum requested drive power and the zero position of the actuating device corresponding to a minimum drive power, in particular no drive power. Optionally, however, the relationship can also be non-linear, at least in certain regions. For example, the requested drive power can increase faster than linearly, e.g., polynomially, e.g., at least quadratically or at least cubically. If, for example, the actuating device is rotatable and can assume positions between 0° (zero position) and 90° (maximum position), the requested drive power can more than double if the angle is doubled. The non-linear relationship preferably applies to at least 10%, preferably at least 50%, optionally at least 95% of a maximum adjustment range, in particular an adjustment angle range, and/or to an adjustment range adjacent to the initial position, in particular the initial angle.

In embodiments, the relationship between the position of the actuating device and the requested braking power is linear, with a maximum position of the actuating device corresponding to a maximum requested braking power and the zero position of the actuating device corresponding to a minimum braking power, in particular no braking power. Optionally, however, the relationship can also be non-linear. Additionally or alternatively, the braking effect, which is actually transmitted to at least one wheel of the stroller, depends on the current speed of the stroller, with the braking effect preferably increasing non-linearly with increasing speed of the stroller and reaching a maximum braking effect above a predetermined speed.

In particular, in this case, the relationship between (actual) braking effect and the speed of the stroller can be represented using a growth function for limited growth (limited growth), with the maximum braking effect preferably being achieved at a speed of no more than 4 km/h, more preferably no more than 3 km/h, in particular no more than 2 km/h. Optionally, a linear increase in the braking effect depending on the speed of the stroller would also be conceivable. In particular, the requested braking power corresponds to the maximum braking effect, which means that the user determines the maximum braking effect of the drive device via the position of the actuating device. In preferred embodiments, the stroller comprises a lower frame and a pusher section, wherein the pusher section is arranged in an upper section of the lower frame. The stroller further comprises at least three wheels, preferably four wheels, which can be arranged on a lower section of the lower frame.

The lower frame preferably comprises a front wheel frame section and a rear wheel frame section, which are in particular rotatably connected to one another via a first joint. The slider section is preferably rotatably connected to the front wheel or rear wheel frame section via a second joint, or slidably connected to the front wheel frame section. In particular, the first and second joints can be identical to one another, so that the front wheel frame section, rear wheel frame section, and slider section are rotatably connected to one another in a common joint.

Preferably, at least one wheel is a rear wheel and is arranged at a lower and/or rear end of the rear wheel frame section and at least one wheel is a front wheel and is arranged at a front and/or lower end of the front wheel frame section.

The front wheel and/or rear wheel frame section may comprise a right and a left side strut, which may be connected to each other by at least one cross strut. The slider section may also have a right and a left side strut, wherein the slider section preferably has a handle area arranged between the right and left side struts of the slider section. The first and/or second joint may comprise a right and a left joint section, which may be connected to each other via a cross strut.

The stroller can have a child restraint and/or can be detachably connected to it. A child restraint is understood to mean, in particular, a child seat, a carrycot, a baby car seat, or the like. The stroller can be designed such that the child restraint and/or a first adapter for connecting to the child restraint is arranged in an upper section of the lower frame or on the push bar section. The first adapter can comprise a right-side and a left-side adapter element, wherein each of the adapter elements can preferably have a coupling section, in particular one facing upwards.

In embodiments, the stroller has a second adapter for connecting to a (further) child restraint device. The second adapter is preferably arranged below and/or in front of the first adapter, in particular near the at least one front wheel and/or in a lower/front region of the front wheel frame section. The second adapter can comprise a right-side and a left-side adapter element, each of the adapter elements preferably having a coupling section. In embodiments, the first adapter is adjustable between an upper and/or rear position and a lower and/or front position. For this purpose, the first adapter can be slidably mounted on the side struts of the slider section. Alternatively or additionally, the second adapter can be transferable between a use position and a stowed position, wherein the coupling section preferably points upwards in the use position. The transfer of the second adapter between the use position and the stowed position can be achieved by rotating, folding and/or sliding, preferably in such a way that the second adapter projects further upwards in the use position than in the stowed position. The transfer can be carried out for the second adapter as a whole or separately for each of the two adapter elements.

In embodiments, the stroller comprises at least one drive device, in particular at least one motor, preferably an electric motor, for example a hub motor, wherein the drive device is designed to drive and/or brake at least one wheel of the stroller.

In embodiments, the drive device is arranged in or, in particular, close to at least one wheel, wherein the drive device can be connected to the at least one wheel, in particular via a drive belt. Preferably, the drive device can be arranged in a lower region of the lower frame, in particular between two wheels, for example, between a left and a right rear wheel of the stroller.

Alternatively, each wheel of the stroller can be assigned its own drive device. The drive device can be arranged such that its rotational axis is identical to the wheel axis of the at least one wheel or is not identical to the wheel axis of the at least one wheel. The drive device is then connected to the at least one wheel via the drive belt, preferably such that the rotational frequency of the drive device is higher than the rotational frequency of the at least one wheel.

In embodiments, the stroller comprises an energy storage device, in particular a (rechargeable) battery, wherein the energy storage device is electrically connected to the drive device. Preferably, the energy storage device (the rechargeable battery) is designed to be removable in order to be able to be charged preferably independently of the other components of the stroller. The energy storage device can be provided in or on a wheel axle connecting the two rear wheels and/or on or in a cross strut connecting the left and right side struts. An electrical and/or wireless connection between the actuating device and the drive device can be established via the control device; for example, the control device can be electrically or wirelessly connected to the drive device and electrically or wirelessly connected to the actuating device. Preferably, the control device is arranged (directly) adjacent to the drive device or the actuating device.

In embodiments, the stroller comprises at least two (different) electronic components, for example the energy storage device, the actuating device, the drive device, the sensor device and/or the control device, wherein at least two or all electronic components can be electrically and/or wirelessly connected to one another.

In particular, at least one electrical connection is provided between at least two of the electronic components, preferably between at least two of the energy storage device, actuating device, drive device, sensor device, and control device, wherein the electrical connection further preferably comprises at least one cable. The at least one electrical connection can be designed such that it can be (reversibly) stretched if at least two of the electronic components move (spatially) away from each other and/or the required length of the electrical connection between the two electronic components changes, e.g., increases and/or decreases, in particular by adjusting (e.g., rotationally and/or translationally) different sections and/or a section of the stroller frame. In particular, the electronic components, preferably the energy storage device, actuating device, drive device, sensor device, and/or control device, can be arranged in or on different sections of the stroller frame, which are designed to be movable relative to one another (e.g., rotationally and/or translationally).

In embodiments, the electrical connection comprises at least one helical turn, preferably a plurality of helical turns (spiral cable), and/or at least one cable loop. The helical turns of the (spiral-shaped) cable can be reversibly stretched when two of the electronic components move away from each other, and/or (the at least) one loop of the cable loop can reversibly (at least partially, but in particular not completely) loosen or contract when the distance between two electronic components increases.

In embodiments, the stroller comprises an actuating device for controlling the at least one drive device, wherein the control is based on the position of the actuating device. The actuating device is adjustable and/or movable and/or operable and can assume a plurality of positions, in particular a zero position and at least one first position, in particular a first and a second position, preferably a first and a second maximum position, wherein the second position, starting from the zero position, is preferably opposite the first position. In particular, the actuating device can assume a plurality of intermediate positions between the zero position and the at least one first and/or second position, preferably the first and/or second maximum position. In particular, the actuating device can be discretely moved, preferably into at least three, in particular at least five, positions.

However, it is particularly preferred that the adjustment of the actuating device be stepless.

Such a division allows for easier handling of the stroller and greater precision in steering. It is also possible to assign frequently used drive power to the respective positions, thereby improving usability. It is also possible to combine the provision of steps with continuous adjustment, for example, by allowing continuous adjustment in principle but incorporating steps at certain positions along the adjustment range, for example, via a releasable locking mechanism on the operating device.

In embodiments, the stroller and/or the actuating device comprises at least one sensor unit, preferably a Hall sensor unit, to detect the (current) position of the actuating device.

This allows for more precise control than would be possible with direct transmission of the actuator's position. It also improves both comfort and durability, as no (or fewer) mechanical resistances need to be overcome.

In embodiments, the actuating device is designed as a manual actuating device, preferably comprising a lever, a rotary element, and/or a slider. Alternatively, the actuating device can also be designed as a touch input device, wherein a position of the touch input device can correspond to a position on the touch input device.

In embodiments, the actuating device has a zero position, wherein the actuating device is preferably designed to be prestressed towards the zero position, for example by means of at least one spring, preferably a tension, compression and/or torsion spring, or by means of at least one magnet, preferably a permanent magnet.

This improves the user-friendliness of the stroller. It also provides an additional safety feature, as it ensures that the stroller will not continue to move when the user releases the handle.

In the case of a touch input device, this is automatically in the zero position if there is no interaction between the touch input device and the user, e.g. if the user does not touch the touch input device. The actuation device can be be movable from the zero position in a first direction and in a second direction. The actuating device may comprise a first stop corresponding to a (first) maximum position of the actuating device in a first direction and a second stop corresponding to a (second) maximum position of the actuating device in the second direction (or optionally the zero position).

Touch input offers the advantage of greater reliability due to the lower probability of dirt or water ingress than with comparable mechanical designs.

If the actuating device is designed as a touch input device, it can have a first and a second (opposite) touch area starting from the zero position, wherein each touch area has a corresponding maximum position, in particular at one end of the touch area.

In embodiments, the actuating device is designed to be rotatable and/or translationally movable and can be arranged in and/or on and/or near the pusher section of the stroller, preferably its handle area. The actuating device can be rotatably mounted about a longitudinal axis of the handle area or about an axis perpendicular or parallel to the longitudinal extent of the handle area. Alternatively or additionally, the actuating device can be arranged such that it can be displaced along a straight line defined by the longitudinal extent of the handle area, or it can be arranged such that it can be displaced along a straight line that runs perpendicular or parallel to the longitudinal extent of the handle area.

In embodiments, the actuating device can be designed to be rotatable and to assume positions between 0° (zero position) and a maximum of 90° (maximum position), preferably a maximum of 60°, more preferably a maximum of 45°, and/or at least 20°, preferably at least 30°, in particular in two opposite directions starting from the 0° or zero position.

In embodiments, the actuating device is designed to be translationally movable and can assume positions along a (straight) path, wherein the path has a first end and a second end, in particular a first and a second stop, in particular corresponding to the first and second maximum positions. Preferably, the zero position is arranged in a central section of the path, in particular directly in the middle of the path.

In particular, the path may have a maximum length of 15 cm, preferably a maximum length of 10 cm, more preferably a maximum length of 5 cm, and/or a minimum length of at least 1 cm, preferably at least 2 cm, more preferably at least 3 cm. In embodiments, the actuating device is arranged on and/or in a front, rear, top, and/or bottom side of the gripping area or in the vicinity of the gripping area, in particular rotatably and/or translationally. The actuating device can protrude from the gripping area and/or be arranged on the gripping area such that it is flush with the surface of the gripping area and/or rests at least partially on it.

In embodiments, the actuating device comprises a fastening section and at least one (first) actuating section, in particular a first and a second actuating section. The actuating device is rotatably and/or displaceably connected to the handle area via the fastening section. Preferably, the actuating device is designed as a lever, in particular as a substantially V-shaped or L-shaped lever, wherein the actuating device has a first actuating section and a second actuating section and is connected to the handle area via the fastening section, preferably on its underside, for rotation about a rotation axis.

The V- or L-shaped design of the actuating device enables ergonomic pivoting using the user's fingers, preferably the thumb. L-shaped means that the actuating device has at least two at least substantially straight sections that are at an approximately right angle (i.e., for example, between 110 and 70 degrees, preferably between 100 and 80 degrees) to one another. V-shaped means that the actuating device has at least two at least substantially straight sections that are at an acute angle (i.e., for example, between less than 45 degrees, preferably between less than 30 degrees) to one another.

In embodiments, the fastening section comprises a fixed and a movable subsection, wherein the fixed subsection can be connected to the slider section and/or formed by the slider section, in particular its gripping area. In particular, the movable subsection is rotationally and/or translationally movable relative to the fixed subsection.

Preferably, the movable subsection can comprise the at least one (first) actuating section, in particular the first and second actuating sections. The fastening section, preferably its fixed and/or movable subsection, and/or the gripping area can comprise a first and/or second stop corresponding to the first and/or second maximum position of the actuating device. The first and/or second stop can be formed, in particular, by at least one projection and/or at least one recess. The stop allows for a simple and stable maximum or minimum position of the actuator to be reached. This prevents misuse due to excessive movement of the actuator.

In embodiments, the fastening section, in particular its fixed or movable subsection, and/or the handle area comprises a (guide) groove and/or recess and/or rail to guide the movement of the actuating device. In particular, a first and a second end of the (guide) groove and/or the recess and/or the rail can form the first and the second stop. Preferably, a stop element projects at least partially into the (guide) groove and/or the recess and/or rail, which interacts with the first and the second stop. The stop element, preferably a projection, can be arranged on the fastening section, in particular its fixed or movable subsection, and/or the handle area; in particular, the stop element is not arranged on the same element that comprises the (guide) groove and/or the recess and/or the rail.

In embodiments, at least one spring, preferably a tension, compression and/or torsion spring, and/or at least one magnet, preferably a permanent magnet, is arranged between the fixed and the movable section, which prestresses the movable section in the direction of the zero position of the actuating device.

In embodiments, the actuating device, preferably the fastening section, in particular its fixed or movable subsection, and/or the handle area, comprises at least one sensor unit, preferably a Hall sensor unit, to detect the current position of the actuating device. Likewise, the actuating device, preferably the fastening section, in particular its fixed or movable subsection, and/or the handle area, can have at least one magnet, in particular a permanent magnet, which interacts with the sensor unit, wherein the at least one magnet is in particular not arranged on the same element as the at least one sensor unit. Specifically, the sensor unit, preferably the Hall sensor unit, can be arranged within the fixed subsection, and the at least one magnet, preferably a permanent magnet, can be arranged within the movable subsection, or exactly the other way around.

In embodiments, the first actuating section extends rearwardly from the fastening section and/or the second actuating section extends forwardly from the fastening section. In particular, preferably in the neutral position of the actuating device, one end of the first actuating section faces a rear end of the handle area and/or is arranged in the vicinity thereof, and/or The end of the second actuating section faces and/or is arranged near a front end of the handle area.

Furthermore, preferably in the zero position of the actuating device, the first actuating section can be arranged at a first height level (starting from a substantially horizontal surface on which the stroller stands) and/or the second actuating section can be arranged at a second height level (starting from a substantially horizontal surface on which the stroller stands), wherein the first height level is preferably below, optionally above or at the same height as, the second height level. Specifically, this can mean that a lower edge of the second actuating section is above a lower edge of the first actuating section (when the stroller stands on a substantially horizontal surface and the actuating device is in the zero position).

In embodiments, the fastening section, in particular its movable sub-section, lies substantially on a first (horizontal) plane with the first and/or second actuating section, preferably the second actuating section, wherein the respective other (first or second) actuating section, preferably the first actuating section, points downwards (optionally upwards) from the (horizontal) plane, and whose longitudinal direction defines a second plane, wherein the first and second planes enclose an angle of at least 10°, preferably at least 30°, more preferably at least 45°, and/or a maximum of 90°, preferably a maximum of 75°, more preferably a maximum of 60°. In particular, the actuating device is designed such that the user can actuate the first actuating section with the thumb and the second actuating section with the index finger, while their hand grasps the grip area of the slider section.

This allows for safer and easier handling of the stroller, especially with just one hand.

In embodiments, the actuating device is designed as a rotatable and/or displaceable section of the slider section, in particular of the handle area. The actuating device (or the rotatable and/or displaceable section) is preferably annular or cylindrical and can be arranged rotatably and/or displaceably on or about a longitudinal axis of the handle area. Preferably, the handle area can have a cutout and/or a groove and/or a rail in which the actuating device is guided and/or at least partially, preferably completely, arranged.

The radius (and/or the area of the cross section) of the handle area is in the area of the cutout and/or the groove and/or the rail at least partially, preferably completely, reduced. In particular, the actuating device can be completely recessed into the cutout and/or the groove and/or the rail or can be flush with the surface of the handle area. Additionally or alternatively, the actuating device can be arranged at least partially on the surface of the handle area.

The actuating device and/or the gripping area, in particular the cutout and/or the groove and/or the rail, can comprise at least one stop, preferably a first and a second stop, in particular a projection, corresponding to the first and second maximum positions of the actuating device. Additionally or alternatively, at least one stop can be formed by an end, in particular a terminal edge, of the cutout and/or the groove and/or the guide. The actuating device and/or the gripping area, in particular the cutout and/or the groove and/or the rail, can comprise a stop element, preferably a projection, which cooperates with the and/or second stop to limit the movement of the actuating device.

In embodiments, the rotatable and/or displaceable section is prestressed by at least one spring, preferably a torsion spring (rotatable section) or a tension or compression spring (displaceable section), in the direction of the zero position of the actuating device (or the rotatable and/or displaceable section).

In embodiments, the rotatable and/or displaceable portion (the actuating device) comprises at least one sensor unit, preferably a Hall sensor unit, and the gripping area comprises at least one magnet, preferably a permanent magnet, or vice versa, in order to detect the position of the actuating device.

Further embodiments and in particular the attached figures are explained below.

Figure 1 shows an embodiment of a stroller 100 with a pusher section 120, a front wheel frame section 130, and a rear wheel frame section 140. The pusher section 120 comprises a left and a right side strut 121 and a handle area 122 arranged between the left and right side struts 121. The handle area 122 comprises the actuating device 230. The left and right side struts 121 each comprise, on their inner side, a rail 102 on which first adapters 170 are slidably arranged, the first adapters 170 being shown in a lower position in this figure.

The front wheel frame section 130 also has left and right side struts 131, which are connected to each other by means of the cross strut 132. On the inside of the side struts 131 of the front wheel frame section 130, second adapters 180 are provided. At the front, lower Two front wheels 191 are arranged at the end of the front wheel frame section 130. The upper rear end of the front wheel frame section 130 is rotatably connected to a lower, front end of the slider section via a first joint 150. The rear wheel frame section 140 also includes right and left side struts 141, which are connected to one another via the cross strut 142, with the energy storage device 220 arranged on the cross strut 142. The front, upper end of the rear wheel frame section 140 is connected to the front wheel frame section 130 via a second joint 160. Rear wheels 192 are arranged at the rear, lower end of the rear wheel frame section 140, each of the rear wheels 192 being driven by a motor (drive device) 210.

Figure 2 shows the rear, lower end of the rear wheel frame section 140 of the stroller 100 from Figure 1. The energy storage device 220 is arranged on the cross strut 142 between the left and right side struts 141 of the rear, lower end of the rear wheel frame section 140. A motor (drive device) 210 is arranged on both rear wheels 192 (only one motor or drive device 210 is visible in this view). A parking brake 101 is also arranged on one rear wheel 192, with which the stroller 100 can be secured against unintentional rolling away when not in use.

Figure 3 schematically shows an exemplary configuration of the stroller 100 according to the invention. The control device 240 can be electrically or wirelessly connected to the actuating device 230, a motor (drive device) 210, and a sensor device 250. The motor (drive device) 210 can be electrically connected to an energy storage device 220. The control device 240 can be configured to receive data from the sensor device 250, e.g., the speed and/or direction of travel of the stroller 100 and/or the direction of rotation of at least one wheel 190, and/or from the actuating device 230, e.g., its position, and/or from the motor (drive device) 210.

Figures 4a and 4b show, highly schematically, an exemplary electrical connection 270 of the stroller 100 according to the invention. The electrical connection 270 is formed between two electronic components, here, for example, between the actuating device 230 and the control device 240. The electronic components are located on two different sections of the stroller 100, for example, the pusher section 120 and the rear wheel frame section 140, wherein the pusher section 120 can be adjusted, in particular translationally (or a length of the pusher section 120 can be increased and/or decreased), whereby the required length of the electrical connection between the two electronic components changes, e.g., depending on the length of the pusher section 120, increased and/or decreased. The electrical connection 270 is, for example, designed as a spiral cable 271, which is designed such that it can be (reversibly) stretched in order to adapt according to the current length of the pusher section 120. Figure 4a thus shows the electrical connection 270 or the spiral cable 271 in a normal (unstretched) state, and Figure 4b shows the electrical connection 270 or the spiral cable 271 in a (reversibly) stretched state.

Figure 5 shows an embodiment of a stroller 100 with an electrical connection 270 according to the invention. The electrical connection 270 is arranged within the slider section 120 and runs from its handle area 122 (in particular starting from the actuating device 230) to the control device 240, which is arranged on the rear wheel frame section 140. The electrical connection 270 comprises the spiral cable 271, wherein the spiral cable 271 is arranged in the slider section 120, which can be adjusted in terms of its length. The spiral cable 271 can be (reversibly) stretched when the length of the slider section 120 increases (or decreases again), whereby the required length of the electrical connection 270 between the actuating device 230 and the control device 240 also increases (or decreases).

Figure 6 shows the pusher section 120 of a stroller 100 according to the invention, in particular its handle area 122. The actuating device 230 is arranged on the underside of the handle area 122. In particular, the L- or V-shaped configuration of the actuating device 230 can be seen, which facilitates operation with the user's thumb.

Figure 7 shows the actuating device 230 and the handle area 122 from below. The actuating device 230 comprises a fastening section 234 via which the actuating device 230 is pivotably (or rotatably) connected to the underside of the handle area 122 about a rotation axis 233. Extending from the fastening section 234 are a first actuating section 231 extending rearward (top in the figure) and a second actuating section 232 extending forward (bottom in the figure).

Figure 8 shows the actuating device 230 and the handle area 122 from the front. The fastening section 234 of the actuating device 230 comprises a fixed section 238 and a movable section 239, wherein the fixed section 238 is connected to the handle area 122 of the slide section 120. The movable section 239 is pivotally connected to the fixed section 238 about the rotation axis 233 and comprises the first actuating section 231 and the second actuating section 232. A sensor unit, in particular a Hall sensor, is arranged within the fixed section 238, and a magnet, in particular a permanent magnet, is arranged within the movable section 239 (not shown) in order to detect the position of the movable section 239 relative to the fixed section 238. Figure 9 shows the fixed section 238 of the fastening section 234 of the actuating device 230 from below. The fixed section 238 comprises a (guide) groove 237 into which a stop element, in particular a projection, of the movable section 239 protrudes at least partially (not shown). The respective first and second ends of the (guide) groove 237 form the first stop 235 and the second stop 236, corresponding to the first and second maximum positions of the actuating device 230. A (torsion) spring 260 is arranged within the fixed section 238, which preloads the movable section 239 toward the zero position of the actuating device 230.

Figure 10 shows an embodiment of a stroller 100 from the front. The actuating device 230 is arranged below the handle area 122 of the pusher section 120 and is in the zero position. The actuating device 230 comprises the first actuating section 231, which is arranged at a first height level H1 (starting from a substantially horizontal floor on which the stroller 100 stands), and the second actuating section 232, which is arranged at a second height level H2, wherein the first height level H1 is below the second height level H2. A lower edge of the second actuating section 232 is thus located above a lower edge of the first actuating section 231 (when the stroller stands on a substantially horizontal floor and the actuating device is in the zero position).

Figure 11 shows a cross-section of the handle area 122, wherein the actuating device 230 is arranged below the handle area 122. It can be seen that the movable sub-section 239 of the fastening section 234 lies essentially on a (horizontal) plane E1 with the second actuating section 232. The first actuating section 231 points downwards from the plane E1, wherein the longitudinal direction of the first actuating section 231 defines a plane E2, and the two planes E1 and E2 enclose an angle W1. The angle W1 is at least 10°, preferably at least 30°, more preferably at least 45°, in particular a maximum of 90°, preferably a maximum of 75°, more preferably a maximum of 60°.

Figures 12a to 12c schematically show a handle portion 122 of a slide in cross-section, wherein the actuating device 230 is designed as a (rotatable) section of the handle portion 122 and encloses it in the illustrated section and is rotatably mounted around the handle portion 122 (about an axis perpendicular to the image plane). The handle portion 122 has a first stop 235 and a second stop 236, in particular a first and second projection. The actuating device 230 comprises a corresponding stop element, which can interact with the first stop 235 and the second stop 236 in order to prevent the rotation of the actuating device 230 to limit the gripping area 122. In the figures, the rotation is limited to 90°, with Figure 12a showing a zero position of the actuating device. Figures 12b and 12c show the actuating device 230 in its respective (first and second) maximum positions, so that the position of the actuating device 230 encloses an angle of 45° with the zero position, or starting from this.

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

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

At least one of the above tasks is further solved in particular by one or more of the following (in particular independent) aspects, which can optionally also be combined with one or more of the above aspects.

Aspect 1

Stroller, comprehensive

- at least three wheels, preferably four wheels,

- at least one drive device, in particular at least one motor, preferably an electric motor, and

- an actuating device, wherein the at least one drive device is designed to drive at least one wheel of the stroller, characterized in that the actuating device comprises a zero position and a first position starting from the zero position, in particular a first maximum position, and a second position, in particular a second maximum position, wherein the second (maximum) position starting from the zero position is preferably opposite to the first (maximum) position, and the control of at least one drive device is based on the position of the actuating device.

Aspect 2

Stroller according to aspect 1, characterized in that the actuating device is movable starting from the zero position in a first direction, preferably towards the first position, in particular the first maximum position, and/or in a second direction, preferably towards the second position, in particular the second maximum position.

Aspect 3

Stroller according to aspect 1 or 2, characterized in that a movement of the actuating device in the first direction starting from the zero position corresponds to a drive of the stroller by the drive device forwards and/or wherein a movement of the actuating device in the second direction starting from the zero position corresponds to a drive of the stroller by the drive device backwards.

Aspect 4

Stroller, comprehensive

- at least three wheels, preferably four wheels,

- at least one drive device, in particular at least one motor, preferably an electric motor, and

- an actuating device, wherein the at least one drive device is designed to drive at least one wheel of the stroller, characterized in that the actuating device comprises a zero position and at least one first position starting from the zero position, in particular a first and/or a second position, wherein the second position starting from the zero position is preferably opposite to the first position, and the drive device is controlled depending on the position of the actuating device, wherein a position of the actuating device corresponds to a requested drive power and/or a requested braking power of the drive device.

Aspect 5

Stroller according to aspect 4, characterized in that a movement of the actuating device starting from the zero position in a first direction, preferably in the direction of the first position, in particular a first maximum position, corresponds to a requested drive power forward and/or a requested braking power, and/or a movement of the actuating device starting from the zero position in a second direction, preferably in the direction of the second position, in particular a second maximum position, corresponds to a requested drive power to the rear and/or a requested braking power.

Aspect 6

Stroller according to aspect 4 or 5, characterized in that the stroller has a (manual) selection device which is designed such that when the selection device is not actuated or actuated, a drive power or a braking power is requested by moving the actuating device, preferably when the selection device is not actuated, a drive power is requested and/or when the selection device is actuated, a braking power is requested by moving the actuating device.

Aspect 7

Stroller according to aspect 4 or 5, characterized in that the stroller has a (manual) selection device which comprises a first position and a second position, wherein preferably in the first position of the selection device a drive power and/or in the second position of the selection device a braking power of the drive device is requested by moving the actuating device.

Aspect 8

Stroller according to aspect 6 or 7, characterized in that the (manual) selection device is designed as a component of the actuating device or is designed as a separate element which is arranged on the stroller, in particular on a handle area of the pusher section.

Aspect 9

Stroller, comprehensive

- at least three wheels, preferably four wheels,

- at least one drive device, in particular at least one motor, preferably an electric motor, and

- an actuating device, wherein the at least one drive device is designed to drive at least one wheel of the stroller, characterized in that the actuating device comprises a zero position and at least one first position starting from the zero position, in particular a first and/or a second position, wherein the second position, starting from the zero position, is preferably opposite to the first position, and the drive device is controlled such that, depending on various driving parameters of the stroller and the position of the actuating device, either a drive power or a braking power is requested and/or transmitted to the at least one wheel.

Aspect 10

Stroller according to one of the preceding aspects, preferably according to aspect 9, further comprising a control device, characterized in that the control device is designed to control the drive device depending on a position of the actuating device.

Aspect 11

Stroller according to aspect 10, characterized in that the control device is configured to detect and/or receive various driving parameters of the stroller, in particular a speed and/or a direction of travel, e.g. via a direction of rotation and/or speed of rotation of at least one wheel.

Aspect 12

Stroller according to one of the preceding aspects, preferably according to aspect 10 or 11, characterized in that the stroller comprises at least one sensor device, preferably a Hall sensor unit, to detect various driving parameters of the stroller, in particular a speed and/or a direction of travel of the stroller, e.g. via a direction of rotation and/or rotational speed of at least one wheel, and/or to send these, preferably to the control device.

Aspect 13

Stroller according to aspect 12, characterized in that the at least one sensor device, preferably the Hall sensor unit, is arranged on and/or within and/or in the vicinity of the drive device.

Aspect 14

Stroller according to one of aspects 9 to 13, characterized in that the control device is designed and/or the drive device is controlled in such a way that - no drive power and/or braking power of the drive device is requested and/or transmitted to at least one wheel by moving the actuating device starting from the zero position, in particular in a first and/or second direction, when the stroller is stationary and/or the current speed of the stroller is 0 km/h and/or no direction of travel of the stroller and/or no direction of rotation of at least one wheel is given and/or can be detected, and/or

- a drive power and/or braking power of the drive device is requested and/or transmitted to at least one wheel by moving the actuating device starting from the zero position, in particular in a first and/or second direction, when the stroller is not stationary and/or when the current speed of the stroller is greater than 0 km/h and/or a direction of travel of the stroller and/or a direction of rotation of at least one wheel is given and/or can be detected, and/or

- a movement of the actuating device starting from the zero position, in particular in a first direction, which corresponds to a requested drive power of the drive device forward, results in a transmission of the drive power (forward) to at least one wheel if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel corresponds to the direction of the requested drive power, and/or results in a transmission of braking power to the at least one wheel if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel does not correspond to the direction of the requested drive power, in particular is opposite to this, and/or

- a movement of the actuating device starting from the zero position, in particular in a second direction, which corresponds to a requested drive power to the rear, results in a transfer of the drive power (to the rear) to at least one wheel if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel corresponds to the direction of the requested drive power, and/or results in a transfer of braking power if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel does not correspond to the direction of the requested drive power, in particular is opposite to this.

Aspect 15

Stroller according to one of the preceding aspects, characterized in that the stroller comprises a front wheel frame section and a rear wheel frame section, wherein preferably - at least one wheel is a rear wheel and is arranged at a lower and/or rear end of the rear wheel frame section, and/or

- at least one wheel is a front wheel and is arranged at a lower and/or front end of the front wheel frame section, and/or

- the front wheel frame section and the rear wheel frame section are rotatably connected to each other via a first joint, and/or

- the slider section is rotatably connected to at least one of the front wheel frame section and the rear wheel frame section via a second joint, and/or

- the slider section is slidably connected to the front wheel frame section.

Aspect 16

Stroller according to one of the preceding aspects, characterized in that the stroller comprises a first adapter for connecting to a first child-carrying device and/or a second adapter for connecting to a second child-carrying device, wherein the second adapter is arranged below the first adapter and/or in the vicinity of the at least one front wheel according to aspect 15.

Aspect 17

Stroller according to aspect 16, characterized in that the first adapter is adjustable, in particular displaceable, between an upper and/or rear position and a lower and/or front position, and/or wherein the second adapter is transferable between a use position and a stowed position.

Aspect 18

Stroller according to one of the preceding aspects, characterized in that the stroller comprises an energy storage device, in particular a (rechargeable) battery, wherein the energy storage device is connected to the drive device.

Aspect 19

Stroller according to one of the preceding aspects, characterized in that the actuating device can assume a plurality of intermediate positions between the zero position and the at least one first and/or second position, preferably the first and/or second maximum position, in particular the actuating device can be discretely moved or continuously adjusted, preferably in at least 3, more preferably at least 5, positions.

Aspect 20 Stroller according to one of the preceding aspects, characterized in that the stroller and/or the actuating device comprises at least one sensor unit, preferably a Hall sensor unit, in order to detect the (current) position of the actuating device.

Aspect 21

Stroller according to one of the preceding aspects, characterized in that the actuating device is designed as a manual actuating device, which preferably comprises a lever, a rotary element and/or a slider, or is designed as a touch input device, wherein a position of the touch input device corresponds to a position on the touch input device.

Aspect 22

Stroller according to one of the preceding aspects, characterized in that the actuating device is designed to be prestressed towards the zero position, for example by means of at least one spring, preferably a tension, compression and/or torsion spring, or by means of at least one magnet, preferably a permanent magnet.

Aspect 23

Stroller according to one of the preceding aspects, characterized in that the actuating device comprises a first stop, which in particular corresponds to a (first) maximum position of the actuating device in a first direction, and a second stop, which in particular corresponds to a (second) maximum position of the actuating device in the second direction or the zero position.

Aspect 24

Stroller according to one of the preceding aspects, characterized in that the actuating device is rotatably and/or translationally movable and is arranged in particular in and/or on and/or in the vicinity of a/the pusher section of the stroller, preferably its/the handle area.

Aspect 25

Stroller according to one of the preceding aspects, preferably aspect 24, characterized in that the actuating device is arranged rotatably about a longitudinal axis of a/the handle area of the stroller or rotatably about an axis perpendicular or parallel to the longitudinal extent of a/the handle area of the stroller, and/or wherein the The actuating device can be moved along a straight line defined by the longitudinal extent of a/the handle area of the stroller, or along a straight line that runs perpendicular or parallel to the longitudinal extent of a/the handle area of the stroller.

Aspect 26

Stroller according to one of the preceding aspects, characterized in that the actuating device is designed to be rotatable and movable and can assume positions between 0 ° (zero position) and a maximum of 90 ° (maximum position), preferably a maximum of 60 °, more preferably a maximum of 45 ° and/or at least 20 °, preferably at least 30 °, in particular in two opposite directions starting from the 0 ° or zero position.

Aspect 27

Stroller according to one of the preceding aspects, characterized in that the actuating device is designed to be translationally movable and can assume positions on a (straight) track, wherein the track has a first end and a second end, in particular a first and a second stop, in particular corresponding to the first and second maximum positions, and wherein the track in particular has a maximum length of 15 cm, preferably a maximum of 10 cm, more preferably a maximum of 5 cm, and/or a minimum length of at least 1 cm, preferably at least 2 cm, more preferably at least 3 cm.

Aspect 28

Stroller according to aspect 27, characterized in that the zero position is arranged in a middle section of the route, in particular directly in the middle of the route.

Aspect 29

Stroller according to one of the preceding aspects, characterized in that the actuating device protrudes from a/the handle area and/or is arranged on it in such a way that the actuating device is flush with a surface of a/the handle area and/or rests at least partially on it.

Aspect 30

Stroller according to one of the preceding aspects, characterized in that the actuating device comprises a fastening section and at least one (first) actuating section, preferably a first and a second Actuating section, wherein the actuating device is rotatably and/or displaceably connected to a/the handle area via the fastening section.

Aspect 31

Stroller according to aspect 30, characterized in that the fastening section comprises a fixed sub-section and a movable sub-section, wherein the fixed sub-section is connected to a/the slider section and/or is formed in particular by the slider section, in particular its handle area, and wherein the movable sub-section is designed in particular to be rotationally and/or translationally movable relative to the fixed sub-section.

Aspect 32

Stroller according to aspect 31, characterized in that the movable sub-section comprises the at least one (first) actuating section, in particular the first and the second actuating section.

Aspect 33

Stroller according to one of aspects 30 to 32, characterized in that the fastening section, preferably its fixed and/or movable subsection, and/or a/the handle area comprises a first and/or second stop corresponding to the first and/or second maximum position of the actuating device, wherein the first and/or second stop is formed in particular by at least one projection and/or at least one recess.

Aspect 34

Stroller according to one of aspects 30 to 33, characterized in that the fastening section, in particular its fixed or movable subsection, and/or the handle area comprises a (guide) groove and/or recess and/or rail in order to guide the movement of the actuating device.

Aspect 35

Stroller according to aspect 34, characterized in that a first and a second end of the (guide) groove and/or the recess and/or the rail form the first and the second stop.

Aspect 36 Stroller according to aspect 35, characterized in that a stop element protrudes at least partially into the (guide) groove and/or the recess and/or rail, which cooperates with the first and the second stop, wherein the stop element, preferably projection, is arranged on the fastening section, in particular its fixed or movable subsection, and/or the handle area, and in particular not on the same element which comprises the (guide) groove and/or the recess and/or the rail.

Aspect 37

Stroller according to one of aspects 31 to 36, characterized in that between the fixed and the movable section at least one spring, preferably tension, compression and/or torsion spring, and/or at least one magnet, preferably permanent magnet, is arranged, which pretensions the movable section in the direction of the zero position of the actuating device.

Aspect 38

Stroller according to one of aspects 30 to 37, characterized in that the actuating device, preferably the fastening section, in particular its fixed or movable section, and/or the handle area has at least one sensor unit, preferably a Hall sensor unit, in order to detect the current position of the actuating device.

Aspect 39

Stroller according to aspect 38, characterized in that the actuating device, preferably the fastening section, in particular its fixed or movable subsection, and/or the handle area has at least one magnet, in particular a permanent magnet, which interacts with the sensor unit, wherein the at least one magnet is in particular not arranged on the same element as the at least one sensor unit.

Aspect 40

Stroller according to one of aspects 30 to 39, characterized in that the first actuating section extends backwards from the fastening section and/or the second actuating section extends forwards from the fastening section, wherein in particular one end of the first actuating section faces a rear end of a/the handle area and/or is arranged in the vicinity thereof, and/or one end of the second actuating section is facing a front end of a/the grip area and/or arranged near it.

Aspect 41

Stroller according to one of aspects 30 to 40, characterized in that the first actuating section is arranged at a first height level (starting from a substantially horizontal ground on which the stroller stands) and/or the second actuating section is arranged at a second height level (starting from a substantially horizontal ground on which the stroller stands), wherein the first height level is preferably below, optionally above or at the same height as the second height level.

Aspect 42

Stroller according to one of aspects 30 to 41, characterized in that the fastening section, in particular its movable sub-section, lies substantially on a first (horizontal) plane with the first and/or second actuating section, preferably with the second actuating section, wherein the other (first or second) actuating section, preferably the first actuating section, points downwards (optionally upwards) from the (horizontal) plane, and whose longitudinal direction defines a second plane, wherein the first and second planes enclose an angle of at least 10°, preferably at least 30°, more preferably at least 45°, and/or a maximum of 90°, preferably a maximum of 75°, more preferably a maximum of 60°.

Aspect 43

Method for controlling a drive device of a stroller, the method comprising

- a requested drive power is determined based on a current position of an actuating device,

- the drive device is controlled based on the requested drive power.

Aspect 44

Method for controlling a drive device of a stroller, the method comprising

- a requested drive power and/or braking power is determined based on a current position of an actuating device, - the drive device is controlled based on the requested drive power and/or braking power.

Aspect 45

Method for controlling a drive device of a stroller, the method comprising

- a requested drive power is determined based on a current position of an actuating device,

- a (current) driving parameter of the stroller is determined by a sensor device,

- the drive device is controlled based on the requested drive power and the (current) driving parameter, in particular either a drive power or a braking power is transmitted to at least one wheel of the stroller.

List of reference symbols

100 - Strollers

101 - Parking brake

102 - Rail

120 - Slide section

121 - Side strut

122 - Grip area

130 - Front wheel frame section

131 - Side strut

132 - Cross brace

140 - Rear wheel frame section

141 - Side strut

142 - Cross brace

150 - first joint

160 - second joint

170 - first adapter

180 - second adapter

190 - Wheel

191 - Front wheel

192 - Rear wheel

210 - Motor (drive device)

220 - Energy storage 230 - Actuating device

231 - first operating section

232 - second operating section

233 - Axis of rotation

234 - Fastening section

235 - first attack

236 - second attack

237 - (Guide) groove

238 - fixed section

239 - movable section

240 - Control device

250 - Sensor device

260 - (Torsion) spring

270 - electrical connection

271 - Spiral cable

Hl - first height level

H2 - second altitude level

El - first level

E2 - second level

Claims

Claims 1. Stroller, comprehensive - at least one wheel, preferably three wheels, more preferably four wheels, - at least one drive device, in particular at least one motor, preferably an electric motor, and - an actuating device, wherein the at least one drive device is designed to drive at least one wheel of the stroller, characterized in that the actuating device can assume a zero position, a first position, in particular a first maximum position, and a second position, in particular a second maximum position, wherein the second position, starting from the zero position, is preferably opposite to the first position, wherein the actuating device, starting from the zero position, is movable in a first direction, preferably towards the first position, and/or in a second direction, preferably towards the second position, and the control of the at least one drive device is based on the position of the actuating device, wherein a position of the actuating device corresponds to a requested drive power and/or braking power forwards or backwards. 2. Stroller according to claim 1, characterized in that a movement of the actuating device in the first direction starting from the zero position is assigned to a drive of the stroller by the drive device forwards and/or wherein a movement of the actuating device in the second direction starting from the zero position corresponds to a drive of the stroller by the drive device backwards. 3. Stroller according to one of the preceding claims, characterized in that the stroller has a, preferably manual, selection device which is designed such that, depending on a non-actuation or actuation of the selection device, a drive power or a braking power is requested by moving the actuating device, preferably when the selection device is not actuated, a drive power is requested and/or when the selection device is actuated, a braking power is requested by moving the actuating device. 4. Stroller according to one of the preceding claims, characterized in that the stroller has a, preferably manual, selection device which comprises a first position and a second position, wherein preferably in the first position of the selection device a drive power and/or in the second position of the selection device a braking power of the drive device is requested by moving the actuating device. 5. Stroller according to one of the preceding claims, wherein the drive device is controlled such that, depending on one or more driving parameters of the stroller, preferably depending on a combination of at least one driving parameter and the position of the actuating device, either a drive power or a braking power is requested and/or transmitted to the at least one wheel. 6. Stroller according to one of the preceding claims, further comprising a control device, characterized in that the control device is designed to control the drive device in dependence on a position of the actuating device. control and/or that the control device is designed to detect and/or receive one or more driving parameters of the stroller, in particular a speed and/or a direction of travel, preferably based on a direction of rotation and/or speed of rotation of at least one wheel. 7. Stroller according to one of the preceding claims, preferably according to claim 6 or 10, characterized in that the stroller comprises at least one sensor device, preferably a Hall sensor unit, to detect various driving parameters of the stroller, in particular a speed and/or a direction of travel of the stroller, preferably based on a direction of rotation and/or speed of rotation of at least one wheel, and/or to send these, preferably to the control device. 8. Stroller according to one of claims 6 to 7, characterized in that the control device is designed and/or the drive device is controlled in such a way that - no drive power and/or braking power of the drive device is requested and/or transmitted to at least one wheel by moving the actuating device starting from the zero position, in particular in a first and/or second direction, when the stroller is stationary and/or the current speed of the stroller is 0 km/h and/or no direction of travel of the stroller and/or no direction of rotation of at least one wheel is given and/or can be detected, and/or - a drive power and/or braking power of the drive device is requested and/or transmitted to at least one wheel by moving the actuating device starting from the zero position, in particular in a first and/or second direction, when the stroller is not stationary and/or when the current speed of the stroller is greater than 0 km/h and/or a direction of travel of the stroller and/or a direction of rotation of at least one wheel is given and/or can be detected, and/or - a movement of the actuating device starting from the zero position, in particular in a first direction, which corresponds to a requested drive power of the drive device forward, results in a transmission of the drive power (forward) to at least one wheel if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel corresponds to the direction of the requested drive power, and/or results in a transmission of braking power to the at least one wheel if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel does not correspond to the direction of the requested drive power, in particular is opposite to this, and/or - a movement of the actuating device starting from the zero position, in particular in a second direction, which corresponds to a requested drive power to the rear, results in a transfer of the drive power (to the rear) to at least one wheel if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel corresponds to the direction of the requested drive power, and/or results in a transfer of braking power if the current direction of travel of the stroller and/or the direction of rotation of the at least one wheel does not correspond to the direction of the requested drive power, in particular is opposite to this. 9. Stroller according to one of the preceding claims, characterized in that the actuating device can assume a plurality of intermediate positions between the zero position and the at least one first and/or second position, preferably the first and/or second maximum position, in particular the actuating device can be discretely moved or continuously adjusted, preferably in at least 3, more preferably at least 5, positions. 10. Stroller according to one of the preceding claims, characterized in that the stroller and/or the actuating device comprises at least one sensor unit, preferably a Hall sensor unit, in order to detect the (current) position of the actuating device. 11. Stroller according to one of the preceding claims, characterized in that the actuating device is designed to be pretensioned towards the zero position, preferably by means of at least one spring, more preferably a tension, compression and/or torsion spring, or by means of at least one magnet, preferably a permanent magnet. 12. Stroller according to one of the preceding claims, characterized in that the actuating device comprises a fastening section and at least one (first) actuating section, preferably a first and a second actuating section, wherein the actuating device is rotatably and/or displaceably connected to a/the handle area via the fastening section, e.g., wherein the fastening section preferably comprises a fixed sub-section and a movable sub-section, wherein the fixed sub-section is connected to a/the slider section and/or is formed in particular by the slider section, in particular its handle area, and wherein the movable sub-section is designed in particular to be rotatably and/or translationally movable relative to the fixed sub-section. 13. A method for controlling a drive device of a stroller, the method comprising - a requested drive power is determined based on a current position of an actuating device, - the drive device is controlled based on the requested drive power. 14. A method for controlling a drive device of a stroller, in particular according to one of the preceding claims, wherein the method comprises that - a requested drive power and/or braking power is determined based on a current position of an actuating device, - the drive device is controlled or regulated based on the requested drive power and/or braking power. 15. A method for controlling a drive device of a stroller, in particular according to one of the preceding claims, wherein the method comprises that - a requested drive power is determined based on a current position of an actuating device, - a, preferably current, driving parameter of the stroller is determined, preferably by a sensor device, - the drive device is controlled or regulated based on the requested drive power and the driving parameters, in particular either a drive power or a braking power is transmitted to at least one wheel of the stroller.