WO2025082564A1 - Walking frame, methods for operating a walking frame - Google Patents

Abstract

The invention relates to walking frames and methods for operating a walking frame, the walking frame being characterized by a high degree of user friendliness.

Description

Rollator; method for operating a rollator

State of the art

The invention is based on a rollator according to the preamble of claim 1, a method for operating a rollator according to the preamble of claim 14, a rollator according to the preamble of claim 17, a method for operating a rollator according to the preamble of claim 23, a rollator according to the preamble of claim 25, a rollator according to the preamble of claim 30, a method for operating a rollator according to the preamble of claim 32, a rollator according to the preamble of claim 34, a method for operating a rollator according to the preamble of claim 40, a rollator according to the preamble of claim 42, and a method for operating a rollator according to the preamble of claim 44.

Rollators (walkers) have long been state-of-the-art. They are a mobility aid that provides greater safety. The first rollators consisted of simple steel frames with four wheels and a horizontal bar for handholding. They allowed users to move more safely and stably than with conventional walking aids. However, they have the disadvantage of being heavy and bulky.

Further developments have led to slimmer and lighter rollators, increasing user-friendliness and mobility. The use of new materials, such as aluminum and carbon, has reduced weight without sacrificing stability. Ergonomic handles and seats were added to improve user comfort. However, users with limited arm strength or endurance will still experience limitations.

To overcome this disadvantage, electronic rollators are now part of the state of the art. They feature electric motors that help users climb inclines or cover longer distances without excessive exertion. Rollators with integrated sensors have also been developed that can warn of obstacles or monitor the user's stability. A disadvantage of these is that walking with a rollator can lead to fatigue in the user, requiring them to stop occasionally to rest while sitting on the seat.

Therefore, German patent application DE 10 2018 009 572 A1 discloses a powered rollator that can also be used as a wheelchair. Use as a wheelchair is made possible by the use of a seat for the user and the rollator's horizontal footrest that keeps the legs of the seated user above the ground, while the seated user controls the motors for driving and steering using a joystick. A disadvantage of this is the cumbersome operation.

The invention is therefore based on the object of providing a rollator that overcomes the disadvantages of the prior art and a method for operating a rollator that overcomes the disadvantages of the prior art.

The invention and its advantages

The rollator according to the invention, with the features of claim 1, the method according to the invention for operating a rollator, with the features of claim 14, the rollator according to the invention, with the features of claim 17, the inventive The method according to the invention for operating a rollator, having the features of claim 23, the rollator according to the invention, having the features of claim 25, the rollator according to the invention, having the features of claim 30, the method according to the invention for operating a rollator, having the features of claim 32, the rollator according to the invention, having the features of claim 34, and the method according to the invention for operating a rollator, having the features of claim 40, the rollator according to the invention, having the features of claim 42, and the method according to the invention for operating a rollator, having the features of claim 44, have the particular advantage that the rollator according to the invention is very user-friendly.

The rollator according to the invention has at least one push mode and at least one drive mode and an operating unit with at least two functionalities, wherein the operating unit can be moved into at least two positions, wherein the functionality of the operating unit in one position differs from the functionality of the operating unit in at least one other position, or wherein the rollator has at least one push mode and at least one drive mode and the operating unit has at least two different functionalities, wherein one functionality can be selected by a signal receivable by a receiver.

According to an advantageous embodiment of the rollator according to the invention, at least one functionality of the control unit supports at least one pushing mode and at least one other functionality of the control unit supports at least one driving mode.

According to an additional advantageous embodiment of the rollator according to the invention, the rollator has at least one position sensor for detecting the position of the control unit and/or for detecting a position of the rollator and/or the rollator has at least one sensor for outputting at least one signal receivable by the receiver of the control unit. The sensor can be, in particular, a seat occupancy sensor arranged on the seat, a footrest sensor arranged on a footrest, or a sensor arranged on a handle. sensor that detects when the handle has been grasped by a hand. For example, if the footrest is folded up and/or the seat is not occupied by an operator and/or the handle is grasped by an operator, a signal would be sent from the sensor(s) whereby the control unit receiver would assign push mode functionality to the control unit. On the other hand, if the footrest is folded down and/or the seat is occupied and/or the handle is not grasped by an operator, a signal would be sent from the sensor(s) whereby the control unit receiver would assign drive mode functionality to the control unit.

According to an additional advantageous embodiment of the rollator according to the invention, the operating unit has a joystick, a lock, which preferably has an unlocking button, and/or a headlight.

According to an additional advantageous embodiment of the rollator according to the invention, the rollator has at least one battery.

According to an additional advantageous embodiment of the rollator according to the invention, a circuit board connected to a motor via a supply line is arranged in the frame. The circuit board is preferably housed in a pocket (e.g., a fabric pocket), which is preferably removable from the frame.

According to an additional advantageous embodiment of the rollator according to the invention, the rollator has a bus system, in particular a CAN bus, as a line system for data transmission.

According to an additional advantageous embodiment of the rollator according to the invention, at least one brake has a physical connection, in particular a brake cable or a hydraulic system.

According to an additional advantageous embodiment of the rollator according to the invention, at least one handle is arranged on a handle bar. According to an additional advantageous embodiment of the rollator according to the invention, a headlight, mobile phone holder, mobile phone holder with charging socket, an interface for extensions or the like is arranged on at least one handle.

According to an additional advantageous embodiment of the rollator according to the invention, the rollator has a lighting system, a direction indicator and/or at least one reflector.

According to an additional advantageous embodiment of the rollator according to the invention, the rollator has a backrest having at least one pocket, at least one cup holder, and/or at least one cane holder strap. Preferably, at least one pocket is arranged on a side of the backrest facing away from the operator operating the rollator in push mode or drive mode. Preferably, at least one pocket has, for example, at least one zipper and/or at least one other closure, such as a magnetic closure, Velcro fastener, a simple flap, or the like. Preferably, at least one pocket is detachably arranged on the backrest, for example by means of Velcro fastener, strap binding, magnetic closure, bayonet closure, or the like. Preferably, at least one detachably arranged pocket has a carrying device, such as a handle, or a carrying strap, such as a shoulder strap or a waist belt.

According to an additional advantageous embodiment of the rollator according to the invention, the rollator has at least one flexible material by which the frame is at least partially covered and/or the rollator has at least one pocket arranged on the frame. The flexible material, which contributes to cost savings since plastic parts that are expensive to manufacture can be eliminated, is preferably washable. If lighting, such as an LED strip, is arranged on the frame, the flexible material has transparent areas or openings, such as a mesh grid, so as not to cover the lighting. The design of the flexible material is freely selectable, so that different colors, color combinations, motifs, slogans, club colors and/or advertising are conceivable. Preferably, at least one pocket is arranged in a frame recess in order to use this space effectively. Preferably, at least one pocket has at least one Zipper. Preferably, at least one pocket is detachably attached to the frame, e.g., by means of a hook-and-loop fastener, strap fastening, magnetic closure, bayonet closure, or the like. Preferably, at least one detachably attached pocket has a carrying device, such as a handle, or a carrying strap, such as a shoulder strap or a waist belt.

According to an advantageous embodiment of the method according to the invention for operating a rollator, wherein the rollator has a frame, wheels arranged on the frame, handles arranged on the frame, a seat, at least one brake, at least one motor and an operating unit, wherein the rollator has at least one push mode and at least one drive mode and the operating unit has at least two functionalities and can be moved into at least two positions, wherein the functionality of the operating unit is changed from one functionality to another by at least one change of position of the operating unit, or the rollator has at least one push mode and at least one drive mode and the operating unit has at least two different functionalities, wherein a functionality is selected by a signal receivable by a receiver, the rollator has lighting with at least one first light and at least one second light, wherein the selection of the position of the operating unit determines whether the at least one first light functions as a front light and the at least one second light as a rear light and/or the at least one first light functions as a rear light and the at least one second light functions as a front light.

According to an additional advantageous embodiment of the method according to the invention, a rollator according to one of claims 1 to 13 is used as the rollator.

The rollator according to the invention has at least two batteries.

According to an advantageous embodiment of the rollator according to the invention, at least one battery is a replaceable battery, at least one battery has a charging socket and/or at least one battery can be charged via a charging socket. According to an additional advantageous embodiment of the rollator according to the invention, the rollator has at least one push mode and at least one drive mode, wherein at least one battery is provided for the push mode and at least one battery is provided for the drive mode.

According to an additional advantageous embodiment of the rollator according to the invention, which has at least two batteries, the rollator has a backrest with at least one pocket, at least one cup holder, and/or at least one cane holder strap. Preferably, at least one pocket is arranged on a side of the backrest facing away from the operator operating the rollator in push mode or drive mode. Preferably, at least one pocket has, for example, at least one zipper and/or at least one other closure, such as a magnetic closure, Velcro fastener, a simple flap, or the like. Preferably, at least one pocket is detachably arranged on the backrest, for example by means of Velcro fastener, strap fastening, magnetic closure, bayonet closure, or the like. Preferably, at least one detachably arranged pocket has a carrying device, such as a handle, or a carrying strap, such as a shoulder strap or a waist belt.

According to an additional advantageous embodiment of the rollator according to the invention, which has at least two batteries, the rollator has at least one flexible material by which the frame is at least partially covered and/or the rollator has at least one pocket arranged on the frame. The flexible material, which contributes to cost savings because plastic parts that are expensive to manufacture can be eliminated, is preferably washable. If lighting, such as an LED strip, is arranged on the frame, the flexible material has transparent areas or openings, such as a mesh grid, so as not to cover the lighting. The design of the flexible material is freely selectable, so that different colors, color combinations, motifs, slogans, club colors and/or advertising are conceivable. Preferably, at least one pocket is arranged in a frame recess in order to make sensible use of this space. Preferably, at least one pocket has at least one zipper. Preferably, at least A bag is detachably attached to the frame, e.g., by means of a hook-and-loop fastener, strap fastening, magnetic closure, bayonet closure, or the like. Preferably, at least one detachably attached bag has a carrying device, such as a handle, or a carrying element, such as a shoulder strap or a waist belt.

According to an additional advantageous embodiment of the rollator according to the invention, the rollator is a rollator according to one of claims 1 to 13, and/or the rollator is used in a method according to one of claims 14 to 16.

According to an advantageous embodiment of the method according to the invention for operating a rollator, wherein the rollator has a frame, wheels arranged on the frame, handles arranged on the frame, a seat, at least one brake, at least one motor and an operating unit, wherein the rollator has at least two batteries, wherein the use of a battery is made dependent on its charge state and/or on a use of the rollator, a rollator according to one of claims 1 to 13 or according to one of claims 17 to 22 is used as the rollator.

The rollator according to the invention has a circuit board connected to a motor via a supply line, which is arranged close to the motor.

According to an additional advantageous embodiment of the rollator according to the invention, the circuit board is arranged in the frame.

According to an additional advantageous embodiment of the rollator according to the invention, which has a circuit board connected to a motor via a supply line and arranged close to the motor, the rollator has a backrest having at least one pocket, at least one cup holder and/or at least one cane holder strap. Preferably, at least one pocket is arranged on a side of the backrest facing away from the operator operating the rollator in push mode or in drive mode. Preferably, at least one pocket has, for example, at least one zipper and/or at least one other closure, such as a magnetic closure, Velcro closure, a simple flap or the like. At least one pocket is detachably attached to the backrest, e.g., by means of a hook-and-loop fastener, strap fastening, magnetic closure, bayonet closure, or the like. Preferably, at least one detachably attached pocket has a carrying device, such as a handle, or a carrying strap, such as a shoulder strap or a waist belt.

According to an additional advantageous embodiment of the rollator according to the invention, which has a circuit board connected to a motor via a supply line and arranged close to the motor, the rollator has at least one flexible material by which the frame is at least partially covered and/or the rollator has at least one pocket arranged on the frame. The flexible material, which contributes to cost savings because it eliminates the need for complex plastic parts, is preferably washable. If lighting, such as an LED strip, is arranged on the frame, the flexible material has transparent areas or openings, such as a mesh grid, so as not to obscure the lighting. The design of the flexible material is freely selectable, so that different colors, color combinations, motifs, slogans, club colors and/or advertising are conceivable. Preferably, at least one pocket is arranged in a frame recess in order to make effective use of this space. Preferably, at least one pocket has at least one zipper. Preferably, at least one pocket is detachably attached to the frame, e.g., by means of a hook-and-loop fastener, strap fastening, magnetic closure, bayonet closure, or the like. Preferably, at least one detachably attached pocket has a carrying device, such as a handle, or a carrying element, such as a shoulder strap or waist belt.

According to an additional advantageous embodiment of the rollator according to the invention, the rollator is a rollator according to one of claims 1 to 13 or according to one of claims 17 to 22, and/or the rollator is used in a method according to one of claims 14 to 16 or according to claim 23 or claim 24.

The rollator according to the invention has at least one pressure sensor and/or a Accelerometer and/or an IMU (Inertial Measurement Unit) sensor.

According to an advantageous embodiment of the rollator according to the invention, the rollator is a rollator according to one of claims 1 to 13 or according to one of claims 17 to 22 or according to one of claims 25 to 29, and/or the rollator is used in a method according to one of claims 14 to 16 or according to claim 23 or claim 24.

According to an advantageous embodiment of the method according to the invention for operating a rollator, wherein the rollator has a frame, wheels arranged on the frame, handles arranged on the frame, a seat, at least one brake, at least one motor and an operating unit, wherein at least one motor is used as pushing assistance and/or at least one motor is used as resistance for training purposes, wherein the rollator has an acceleration sensor and/or an IMU sensor and/or at least one pressure sensor for measuring a force exerted by an operator in the horizontal direction, wherein the value of the measured force influences the strength of the pushing assistance or the strength of the resistance, a rollator according to one of claims 1 to 13, according to one of 17 to 22, according to one of claims 25 to 29 or according to claim 30 or claim 31 is used as the rollator.

The rollator according to the invention has at least one gripper arm. The gripper arm is preferably movable and/or telescopic and is preferably used for gripping objects. Thus, it can be helpful for an operator, for example, to retrieve objects from a shelf or refrigerator or to return them. The gripper arm is preferably a robotic arm.

According to an advantageous embodiment of the rollator according to the invention, the gripping arm is remotely controlled. Remote control is preferably carried out via a control unit, a joystick, and/or a smartphone. According to an additional advantageous embodiment of the rollator according to the invention, the rollator has at least one motor.

According to an additional advantageous embodiment of the rollator according to the invention, which has at least one gripping arm, the rollator has a backrest having at least one pocket, at least one cup holder, and/or at least one cane holder strap. Preferably, at least one pocket is arranged on a side of the backrest facing away from the operator operating the rollator in push mode or drive mode. Preferably, at least one pocket has, for example, at least one zipper and/or at least one other closure, such as a magnetic closure, Velcro fastener, a simple flap, or the like. Preferably, at least one pocket is detachably arranged on the backrest, for example by means of Velcro fastener, strap binding, magnetic closure, bayonet closure, or the like. Preferably, at least one detachably arranged pocket has a carrying device, such as a handle, or a carrying strap, such as a shoulder strap or a waist belt.

According to an additional advantageous embodiment of the rollator according to the invention, which has at least one gripping arm arranged close to the motor, the rollator has at least one flexible material by which the frame is at least partially covered and/or the rollator has at least one pocket arranged on the frame. Preferably, the flexible material (e.g., fabric covering), which contributes to cost savings by eliminating the need for expensive plastic parts, is washable. If lighting, such as an LED strip, is arranged on the frame, the flexible material has transparent areas or openings, such as a mesh grid, so as not to obscure the lighting. The design of the flexible material is freely selectable, allowing for different colors, color combinations, motifs, slogans, club colors, and/or advertising. Preferably, at least one pocket is arranged in a frame recess to make effective use of this space. Preferably, at least one pocket has at least one zipper. Preferably, at least one pocket is fastened, e.g., by means of a hook-and-loop fastener, strap fastening, magnetic closure, or bayonet closure. or the like is detachably arranged on the frame. Preferably, at least one detachably arranged bag has a carrying device, such as a handle, or a carrying strap, such as a shoulder strap or a waist belt.

According to an additional advantageous embodiment of the rollator according to the invention, the rollator is a rollator according to one of claims 1 to 13, according to one of claims 17 to 22, according to one of claims 25 to 29 or according to claim 30 or claim 31, and/or the rollator is used in a method according to one of claims 14 to 16, according to claim 23 or claim 24 or according to claim 32 or claim 33.

According to an advantageous embodiment of the method according to the invention for operating a rollator, wherein the rollator has a frame, wheels arranged on the frame, handles arranged on the frame, a seat and at least one brake, wherein the rollator has at least one gripping arm, so that an operator can reach objects that would otherwise be inaccessible by means of the at least one gripping arm without having to move away from the rollator and/or that an operator can place objects in places that would otherwise be inaccessible by means of the at least one gripping arm without having to move away from the rollator, a rollator according to one of claims 1 to 13, according to one of claims 17 to 22, according to one of claims 25 to 29, according to claim 30 or claim 31 or according to one of claims 34 to 39 is used as the rollator.

The rollator according to the invention has a backrest which has at least one pocket, at least one cup holder and/or at least one stick holder strap and/or the rollator has at least one flexible material by which the frame is at least partially covered and/or the rollator has at least one pocket which is arranged on the frame.

According to an advantageous embodiment of the rollator according to the invention, the rollator is a rollator according to one of claims 1 to 13 or according to one of claims 17 to 22 or according to one of claims 25 to 29 or according to claim 30 or 31 or according to one of claims 34 to 39, and/or the rollator is used in a method according to one of claims 14 to 16 or according to claim 23 or claim 24 or according to claim 32 or claim 33 or according to claim 40 or claim 41.

According to an advantageous embodiment of the method according to the invention for operating a rollator, wherein the rollator has a frame, wheels arranged on the frame, handles arranged on the frame, a seat and at least one brake, wherein the rollator has a backrest which has at least one pocket, at least one cup holder and/or at least one cane holder strap, so that an operator can carry different things within easy reach, and/or wherein the rollator has at least one flexible material by which the frame is at least partially covered, whereby the frame is at least partially protected, and/or wherein the rollator has at least one pocket which is arranged on the frame, so that additional storage space is created on the frame, a rollator according to one of claims 1 to 13, according to one of claims 17 to 22, according to one of claims 25 to 29, according to claim 30 or claim 31, according to one of claims 34 to 39 or according to one of claims 42 to 43 is used as the rollator.

The rollators according to the invention are therefore characterized in particular by the following features, which can be combined as desired:

- Battery

- Interchangeable / quick change

- Can be used individually or with two batteries at the same time

- Can be charged while installed or removed.

- Part of the frame cladding

- Electronics

- Bluetooth communication

Connection with smartphone / chest strap heart rate measurement resistance when pushing adjustable to pulse or heart rate.

- Division into circuit boards for motor control and control unit Facilitates positioning in the frame and shortens the cable to the motor; possible advantage in electromagnetic compatibility (EMC).

- CAN bus connection of the boards

High flexibility of the system

The wiring harness can be kept simple since only four wires are needed between the boards.

Easily expandable

Allows easy changing of the side on which the control unit is attached.

Firmware updates can be passed from the control unit to the motor boards.

- Acceleration / position sensor

To detect the position of the control unit and adjust the operating state depending on the position Fall detection

- Mechanics

Length compensation of the brake cable in the telescopic tube

- Special functions

Fall detection via position sensor and triggering of an emergency call via paired smartphone and/or via integrated hardware

- Force sensor in the handle

Allows precise adjustment of resistance or push assistance

- Other sensors, such as radar, lidar, ultrasound are also conceivable for functions such as obstacle detection

- Elbow rests on the handle

- Logo application / design foil also serves as a reflector

- Lighting / rear light depending on the situation (riding mode, push mode), indicators are also conceivable

- Cable entry through cross, cross joint

- The normal seat also serves as a wheelchair seat: the direction of travel is opposite to the pushing direction. Users simply need to turn around. and sit down instead of walking around the rollator as disclosed in the prior art.

- Lighting in the control unit or on the opposite side of the handle.

- Mobile phone holder, mobile phone charging socket, e.g. on the handle part that is not occupied by the control unit.

- Length-adjustable backrest

- At least one camera: A camera can be used, for example, to allow a caregiver to control the rollator rather than the person using it. Furthermore, a camera can be used to check or monitor the condition of the person using it. It's also conceivable that a doctor could examine the person using the camera from a distance.

- Secret compartment hidden under the seat or in the backrest

- Theft protection through trackers similar to an Apple Air Tag

- QR code system for owner identification

- Store for additional software. For example, navigation, voice assistant...

- Special menu for additional settings for maintenance and service staff

- Activation via associated app via Bluetooth, NFC, USB,... (comparable to key function in cars).

Further advantages and advantageous embodiments of the invention can be found in the following description and the drawings.

Drawings

Preferred embodiments of the subject matter according to the invention are illustrated in the drawings and are explained in more detail below.

Fig. 1 is a perspective view of a rollator according to the invention in push mode, Fig. 2 is a front view of the rollator according to the invention, according to Fig. 1,

Fig. 3 a view of the left side of the rollator according to the invention, according to

Fig. 1 ,

Fig. 4 is a rear view of the rollator according to the invention, as shown in Fig. 1,

Fig. 5 is a perspective view of a rollator according to the invention in

Driving mode,

Fig. 6 is a perspective view of a rollator according to the invention, as shown in Fig. 5, with transparent electronics,

Fig. 7 is a front view of the rollator according to the invention, according to Fig. 5,

Fig. 8 is a view of the left side of the rollator according to the invention, according to

Fig. 5,

Fig. 9 is a rear view of the rollator according to the invention, according to Fig. 5,

Fig. 10 is a perspective view of a rollator according to the invention in

sliding mode,

Fig. 11 is a front view of the rollator according to the invention, according to Fig. 10,

Fig. 12 a view of the left side of the rollator according to the invention, according to

Fig. 10,

Fig. 13 a rear view of the rollator according to the invention, according to Fig. 10,

Fig. 14 is a perspective view of a rollator according to the invention in

Driving mode, Fig. 15 is a front view of the rollator according to the invention, according to Fig. 14,

Fig. 16 a view of the left side of the rollator according to the invention, according to

Fig. 14,

Fig. 17 a rear view of the rollator according to the invention, according to Fig. 14,

Fig. 18 is a perspective view of an operating unit of a rollator according to the invention,

Fig. 19 a side view of the control unit, according to Fig. 18,

Fig. 20 is a plan view of the control unit, according to Fig. 18,

Fig. 21 is a front view of the control unit, according to Fig. 18,

Fig. 22 a view from below of the control unit, according to Fig. 18,

Fig. 23 is an exploded view of the control unit, according to Fig. 18,

Fig. 24 a side view of the control unit in folded position,

Fig. 25 a view of the control panel of the control unit in the folded position from the operator's perspective,

Fig. 26 a side view of the control unit in unfolded position,

Fig. 27 a view of the control panel of the control unit in the unfolded position from the operator's perspective,

Fig. 28 a side view of a joystick, Fig. 29 a top view of the joystick, according to Fig. 28,

Fig. 30 a reaction curve,

Fig. 31 another reaction curve,

Fig. 32 a front view of a rollator according to the invention in driving mode,

Fig. 33 a view of the left side of the rollator according to the invention, according to Fig. 32,

Fig. 34 is a front view of the rollator according to the invention, as shown in Fig. 32, and

Fig. 35 is a perspective view of the rollator according to the invention, as shown in Fig. 32.

Description of the embodiment

Fig. 1 shows a perspective view of a rollator according to the invention in push mode. The rollator according to the invention has an operating unit 1, which is arranged on the left handle and folded down in push mode. To switch to drive mode, the operating unit 1 is folded up. It is conceivable that the operating unit 1 is wired and/or signals from the operating unit 1 are sent and received wirelessly. It is also conceivable that the operating unit 1 is designed as a remote control to be held in the hand by an operator, who can be the user of the rollator or a person accompanying the user of the rollator. The rollator according to the invention is driven by motors 4 (electric motors). The energy supply is ensured by at least one battery 2, which is part of the frame covering and can be easily removed from the frame by means of a quick-change system. The battery 2 can preferably can be charged when installed and removed. For charging when installed, the rollator according to the invention has a charging socket or the rollator according to the invention can be charged inductively. When two batteries 2 are used, these can be used individually or simultaneously. It is also conceivable for one battery 2 to be used for push mode and the other battery 4 for drive mode. Close to the motors 4, a frame cover 3 covers the electronics arranged underneath. The rollator according to the invention has footrests 5, which are folded upwards in push mode to create space for the pushing user. The brakes can be operated via brake levers 6 arranged on the left and right within easy reach. It is also conceivable for the brakes to be automated, which would make the brake levers 6 unnecessary. Wheels 7 are pivoting to achieve high maneuverability. The handles are height-adjustable using a telescopic adjustment 11. When the handle height is adjusted, the length of the brake cables is automatically adjusted. Brake cables and wires are protected inside the frame. Cables are routed from one side to the other through joint 12.

In driving mode, the user can sit on a seat 10. The back is supported by a backrest 9. To increase comfort, the rollator according to the invention has armrests 8 within easy reach.

The rollator according to the invention thus has at least one push mode and at least one drive mode, wherein the operating unit 1 has at least two different functionalities, wherein one functionality is selectable by a signal receivable by a receiver. In this case, the rollator according to the invention has at least one position sensor for detecting the position of the operating unit 1 and/or for detecting a position of the rollator and/or the rollator according to the invention has at least one sensor for outputting at least one signal receivable by the receiver of the operating unit. The sensor can in particular be a seat occupancy sensor arranged on the seat, a footrest sensor arranged on a footrest or a sensor arranged on a handle which detects when the handle has been grasped by a hand. For example, if the footrest is folded up and/or if If the seat is occupied by an operator and/or a handle is grasped by an operator, a signal would be emitted from the sensor(s), whereby the control unit receiver would assign push mode functionality to the control unit. On the other hand, if the footrest is folded down and/or the seat is occupied by an operator and/or a handle is not grasped by an operator, a signal would be emitted from the sensor(s), whereby the control unit receiver would assign drive mode functionality to the control unit.

Fig. 2 shows a front view (view in the pushing direction) of the rollator according to the invention, as shown in Fig. 1. To increase safety in poor visibility or darkness, a manually switchable position light 14 is used in pushing mode. The position lights 14 visible in Fig. 2, since they are directed against the pushing direction, are designed as rear lights, in particular as red-illuminated rear lights. The position lights 14 are preferably automatically controlled by a sensor (e.g., light sensor, twilight sensor).

Fig. 3 shows a view of the left side of the rollator according to the invention, according to Fig. 1.

Fig. 4 shows a rear view (view against the pushing direction) of the rollator according to the invention, as shown in Fig. 1. The position lights 14 visible in Fig. 4, since they are directed in the pushing direction, are designed as headlights, in particular as white headlights. For transport or space-saving storage, the rollator according to the invention can be folded by releasing a lock 15.

Fig. 5 shows a perspective view of a rollator according to the invention in drive mode. The control unit 1, which serves as the controller in drive mode, is folded upward. Furthermore, the footrests 5 are folded downward.

Fig. 6 shows a perspective view of a rollator according to the invention, as shown in Fig. 5, with transparent electronics. Behind the frame cover 3 is the Circuit board 16 for the motor control. Due to the short cable from circuit board 16 to motor 4, the radiation is very low.

Fig. 7 shows a front view (view against the direction of travel) of the rollator according to the invention, as shown in Fig. 5. The position lights 14 visible in Fig. 7 are designed as headlights, in particular as white headlights, since they are directed in the direction of travel. The color (red or white) of the position lights 14 thus depends on whether the rollator according to the invention is in push mode or drive mode. Switching can be done either manually, by the position of the control unit and/or by a sensor that detects the direction of rotation of a wheel driven by the motor 4.

Fig. 8 shows a view of the left side of the rollator according to the invention, according to Fig. 5.

Fig. 9 shows a rear view (view in the direction of travel) of the rollator according to the invention, according to Fig. 5. The position lights 14 visible in Fig. 9 are designed as rear lights, in particular as red-illuminated rear lights, since they are directed against the direction of travel.

Fig. 10 shows a perspective view of a rollator according to the invention in push mode. In contrast to Fig. 1, the folded-down control unit 1 is arranged on the right handle of the rollator according to the invention. Changing the position of the control unit 1 from one handle to the other is preferably done without tools.

Fig. 11 shows a front view (view in the sliding direction) of the rollator according to the invention, according to Fig. 10.

Fig. 12 shows a view of the left side of the rollator according to the invention, according to Fig. 10. Fig. 13 shows a rear view (view against the pushing direction) of the rollator according to the invention, according to Fig. 10.

Fig. 14 shows a perspective view of a rollator according to the invention in drive mode. In contrast to Fig. 5, the folded-up control unit 1 is located on the right handle of the rollator according to the invention.

Fig. 15 shows a front view (view against the direction of travel) of the rollator according to the invention, according to Fig. 14.

Fig. 16 shows a view of the left side of the rollator according to the invention, according to Fig. 14.

Fig. 17 shows a rear view (view in the direction of travel) of the rollator according to the invention, according to Fig. 14.

Fig. 18 shows a perspective view of an operating unit 1 of a rollator according to the invention. A joystick 18 serves to control the rollator according to the invention in driving mode. Preferably, the joystick 18 is interchangeable so that its size and ergonomics can be adapted to the user's needs. It is also conceivable for the joystick 18 to function as an "ignition key," so that the rollator according to the invention can only be used when the joystick 18 is arranged on the operating unit 1.

Fig. 19 shows a side view of the control unit 1, according to Fig. 18.

Fig. 20 shows a top view of the control unit 1, according to Fig. 18. An input panel 19 is arranged on the control unit 1.

Fig. 21 shows a front view of the control unit 1, according to Fig. 18. A headlight 13 is arranged on the control unit 1. Fig. 22 shows a bottom view of the control unit 1, according to Fig. 18. A locking mechanism 17 is arranged on the control unit 1. When the locking mechanism 17 is unlocked, the control unit 1 can be pivoted so that the control unit 1 can be pivoted into its driving mode position or into its pushing mode position. It is also conceivable for the locking mechanism 17 to have an unlocking position in which the control unit 1 can be removed from the handle.

Fig. 23 shows an exploded view of the control unit 1, according to Fig. 18. The control unit 1 has a circuit board 20 (control unit). The housing parts of the control unit 1 are preferably screwed together. Depending on the position of the lock 17, the lock 17 engages a gear wheel.

Fig. 24 shows a side view of the control unit 1 in the folded position. The control unit 1 has a joystick 18 and a control panel 21.

Fig. 25 shows a view of the control panel 21 of the control unit 1 in the folded position from the operator's perspective.

Fig. 26 shows a side view of the control unit 1 in the unfolded position. The control panel 21 has a power button 22, which, when briefly pressed, switches on the lighting of the control panel 21. Acoustic feedback via a buzzer, e.g. in the form of a short beep, signals that the control unit 1 is switched on. A battery indicator 23 provides information about the charge level of the battery 2. In switch-on level 1, all LEDs of an LED strip 24 flash rapidly. In addition, the motors 4 actively hold the position of the rollator according to the invention so that it cannot be moved. Pressing the power button 22 again takes you to switch-on level 2. In switch-on level 2, the position of the control unit 1 is queried by means of a position sensor. If the control unit 1 is folded in, as shown in Fig. 24, the last set resistance level is active in training mode. The training level is indicated by slowly flashing LEDs of the LED strip 24. If the control unit 1 is unfolded, as As shown in Fig. 26, the last set speed becomes active. The level is indicated by permanently lit LEDs on LED strip 24. In addition, the joystick inputs are enabled.

A change in the position of the control unit 1 when the drive or push function is switched on in switching level 2 leads to the triggering of switching level 1.

In push mode, with the control unit 1 in the folded position, the motors 4 provide resistance or push assistance for training purposes. Briefly pressing the plus button 25 increases the resistance or push assistance by one level, which is visible in the LED strip 24. Briefly pressing the minus button 26 decreases the resistance or push assistance by one level, which is visible in the LED strip 24. To draw attention, a horn button 27 can be pressed. This causes the buzzer to remain active until the horn button 27 is released. The rollator according to the invention has lighting which is switched off by default when switched on for the first time in switch-on level 1. In switch-on level 2, pressing a light button 28 once turns on the position lighting. Pressing the light button 28 again switches on the headlights. Pressing the light button 28 again turns the headlights off again. A long press of, for example, three seconds turns off the lighting.

In push mode, the rollator according to the invention is switched off by pressing the power button 22 for a long time, e.g., three seconds. This also switches off the position lights and/or the headlights. When switched off, an acoustic feedback is provided via a buzzer, e.g., in the form of two short beeps. The backlight of the control panel 21 and the circuit boards go out.

Pressing the plus and minus buttons simultaneously and for a long time (e.g., 5 seconds) opens the menu. The menu items are indicated by flashing LEDs on the battery indicator 23. The parameters for each menu are displayed on the LED strip 24. Navigation within the menu is achieved by joystick inputs (Y+: Next menu item, Y-: Previous menu item, X+: Increase parameter, X-: Decrease parameter). For example, the menu can contain the following menu items:

Menu 1 (First LED of the battery indicator 23): Set curve / zero zone steering

Menu 2 (Second LED of the battery indicator 23): Braking effect when returning to the neutral position (joystick 18); from 0 (no braking effect = rolling) to 6 (maximum deceleration) Menu 3 (Third LED of the battery indicator 23): Holding time after switching off in drive mode: LEDs of the LED strip 24 off: 10 s, one LED of the LED strip 24: 20 s, two LEDs of the LED strip 24: 30 s, three LEDs of the LED strip 24: 60 s (default factory setting), four LEDs of the LED strip 24: 120 s, five LEDs of the LED strip 24: 180 s, six LEDs of the LED strip 24: 240 s.

Fig. 27 shows a view of the control panel 21 of the control unit 1 in the unfolded position from the operator's perspective.

In driving mode, with the control unit 1 in the unfolded position, the speed is adjustable. Briefly pressing the plus button 25 increases the speed by one level (e.g., by 1 km/h), which is visible in the LED strip 24. Briefly pressing the minus button 26 decreases the speed by one level, which is visible in the LED strip 24. To draw attention, a horn button 27 can be pressed. This causes the buzzer to be activated until the horn button 27 is released. The rollator according to the invention has lighting which is switched off by default when switched on for the first time in switching level 1. In switching level 2, pressing a light button 28 once switches on the position lighting. Pressing the light button 28 again switches on the headlights. Pressing the light button 28 again switches the headlights off again. Holding the button down for, e.g., three seconds switches the lighting off.

In driving mode, the rollator according to the invention is switched off by pressing the power button 22 for a long time, e.g., three seconds. This also switches off the position lights and/or the headlights. When switched off, an acoustic feedback is provided via a buzzer, e.g., in the form of two short beeps. The background lighting of the control panel 21 and the circuit boards go out. Motors 4 remain switched on for a predetermined time (e.g., 60 seconds) and maintain the position of the rollator according to the invention to facilitate the operator's standing up. The operator can prematurely terminate this holding by pressing a button.

Fig. 28 shows a side view of a joystick 18. The joystick 18 has a knob 29, which is preferably detachable. This has the advantage that the knob 29 can be replaced, e.g., to adapt its size and ergonomics to the user's needs. It is also conceivable that the knob 29 functions as an "ignition key," so that the rollator according to the invention can only be used when the knob 29 is arranged on the control unit 1.

Fig. 29 shows a top view of the joystick 18, according to Fig. 28. As long as the joystick 18 is in the zero position, the position of the rollator according to the invention is actively maintained. If the joystick 18 is moved in the Y direction, the motors 4 set the rollator according to the invention in motion in a straight line. A forward movement in the direction of travel, which is represented by an arrow 30, is proportional to the deflection in the Y+ direction. A backward movement against the direction of travel, which is represented by an arrow 30, is proportional to the deflection in the Y- direction. Alternatively, the movement can also occur according to the reaction curve shown in Fig. 30. If the joystick 18 is moved in the X direction, the motors 4 set the rollator according to the invention in motion in a steering manner. Steering to the right is proportional to the deflection in the X+ direction. Steering to the left is proportional to the deflection in the X- direction. Alternatively, the movement can also occur according to the reaction curve shown in Fig. 31. This has the advantage that straight-ahead travel is not affected by small deflections. Ideally, the response curve is set via a menu and/or an app. If the joystick 18 is released, it automatically returns to the zero position. In this case, or in the case in which the joystick 18 is actively returned to the zero position, the inventive rollator, which is in motion, is braked to a standstill with a defined deceleration, which can preferably be set via a menu and/or an app.

Fig. 30 shows a reaction curve. The reaction curve has a zero point 31. Fig. 31 shows another reaction curve.

Fig. 32 shows a front view of a rollator according to the invention in driving mode. The rollator according to the invention has a pocket 32 on its backrest 9. The pocket 32 preferably has at least one zipper to securely store objects in the pocket 32. The pocket 32 is firmly connected to the backrest 9 or detachably attached to the backrest, for example by means of a hook-and-loop fastener, strap fastening, magnetic closure, bayonet closure, or the like. Preferably, at least one detachably attached pocket has a carrying device, such as a handle, or a carrying strap, such as a shoulder strap or a waist belt. In the present exemplary embodiment, a cup holder 33 is additionally arranged on the backrest 9, but is also conceivable as an alternative. Of course, this can also be used to store other objects, for example, a remote control for the rollator according to the invention, which replaces or supplements the operating unit 1. An LED strip 35 is arranged on the frame 34 and serves as lighting. It is also conceivable that the operator could be informed of the battery charge level or the driving speed. As an example, a flexible material 36 (e.g., fabric covering) is shown only on the right side of the frame 34. This has openings 37 to prevent the LED strip 35 located underneath from being obscured.

Fig. 33 shows a view of the left side of the rollator according to the invention, as shown in Fig. 32. The flexible material 36 (e.g., fabric covering) is preferably removable, allowing the use of different materials, such as fabric, leather, or waterproof material, and/or different designs, such as different patterns, advertising, or club logos. The use of the flexible material 36 offers the design advantage that the frame or plastic parts underneath do not have to be visually ideal, as they are concealed during use. Furthermore, the flexible material 36 is preferably washable. Fig. 34 shows a front view of the rollator according to the invention, as shown in Fig. 32, and Fig. 35 shows a perspective view of the rollator according to the invention, as shown in Fig. 32. By way of example, the flexible material 36 (e.g., fabric covering) is shown only on one side of the frame 34. This has openings 37 so that the LED strip 35 located underneath is not obscured.

It is also conceivable that the rollator according to the invention or the method according to the invention for operating a rollator has further features, such as:

- a navigation system

- a remote control, so that not the user but an accompanying person controls the rollator according to the invention (e.g. via an app installed on the smartphone)

- a home function, so that the rollator according to the invention automatically finds its way back to the user's home, for example

- Automatically connects to a charging station when the battery charge is low

- an emergency call function

- tipping detection, if necessary with automatic emergency call

- a fatigue sensor

- a monitoring system for vital functions (e.g. blood pressure, pulse, blood oxygen)

- seat and/or grip heating

- an engine brake when driving downhill

- a design as a training device by adjusting the resistance in sliding mode for training purposes

- motor support in push mode

- Position sensor that detects the position of the control unit, which, for example, switches from front light to rear light

- Pressure sensor (force sensor) on the handle, which measures the force in the horizontal direction of movement, making it possible to measure how hard the rollator according to the invention is pushed in push mode, so that the motor power is adjusted accordingly (e.g. high pressure increases the motor power; low pressure decreases the motor power)

- Voice control

- GPS tracking

- Control of the rollator according to the invention by means of Kl support, whereby the rollator according to the invention can, for example, independently avoid obstacles

- a sensor that works with artificial intelligence to detect impending falls at an early stage in order to warn the user or counteract them by controlling the motor power.

All features presented in the description and the drawings may be essential to the invention both individually and in any combination with one another.

Reference number list

1 control unit

2 batteries

3 frame cover

4 Engine

5 Footrest

6 brake levers

7 wheel

8 Handle with armrest

9 Backrest

10 Seating area

11 Telescopic adjustment

12 joint

13 headlights

14 Position lighting

15 Locking

16 circuit boards

17 Locking

18 Joystick

19 Input panel

20 boards

21 Control panel

22 Power button

23 Battery indicator

24 LED strip

25 Plus button

26 Minus button

27 Horn button

28 Light button

29 knob

30 arrow

31 Zero point Bag Cup holder Frame LED strip Flexible material Opening

Claims

Patent claims 1 . Rollator, - with a frame (34), - with wheels (7) arranged on the frame (34), - with handles (8) arranged on the frame (34), - with a seat (10), - with at least one brake, - with at least one motor (4) and - with an operating unit (1 ), characterized in that the rollator has at least one pushing mode and at least one driving mode and the operating unit (1 ) has at least two functionalities and can be moved into at least two positions, wherein the functionality of the operating unit (1 ) in one position differs from the functionality of the operating unit (1 ) in at least one other position, or that the rollator has at least one pushing mode and at least one driving mode and the operating unit (1 ) has at least two different functionalities, wherein one functionality can be selected by a signal that can be received by a receiver. 2. Rollator according to claim 1, characterized in that at least one functionality of the control unit (1) supports at least one pushing mode and at least one other functionality of the control unit (1) supports at least one driving mode. 3. Rollator according to claim 1 or claim 2, characterized in that the rollator has at least one position sensor for detecting the position of the operating unit (1) and/or for detecting a position of the rollator and/or the rollator has at least one sensor for outputting at least one signal receivable by the receiver of the control unit. 4. Rollator according to one of the preceding claims, characterized in that the operating unit (1) has a joystick (18), a lock (17) and/or a headlight. 5. Rollator according to one of the preceding claims, characterized in that the rollator has at least one battery (2). 6. Rollator according to one of the preceding claims, characterized in that a circuit board (16) connected to a motor (4) via a supply line is arranged in the frame. 7. Rollator according to one of the preceding claims, characterized in that the rollator has a bus system as a cable system for data transmission. 8. Rollator according to one of the preceding claims, characterized in that at least one brake has a physical connection. 9. Rollator according to one of the preceding claims, characterized in that at least one handle (8) is arranged on a handle bar. 10. Rollator according to one of the preceding claims, characterized in that that a headlight, mobile phone holder, mobile phone holder with charging socket, an interface for extensions or the like is arranged on at least one handle (8). 11. Rollator according to one of the preceding claims, characterized in that the rollator has a lighting system, a direction indicator and/or at least one reflector. 12. Rollator according to one of the preceding claims, characterized in that the rollator has a backrest (9) which has at least one pocket (32), at least one cup holder (33) and/or at least one stick holder strap. 13. Rollator according to one of the preceding claims, characterized in that the rollator has at least one flexible material (36) by which the frame (34) is at least partially covered and/or that the rollator has at least one pocket which is arranged on the frame (34). 14. A method for operating a rollator, wherein the rollator has a frame (34), wheels (7) arranged on the frame (34), handles (8) arranged on the frame (34), a seat (10), at least one brake, at least one motor (4) and an operating unit (1), characterized in that the rollator has at least one push mode and at least one drive mode and the operating unit (1) has at least two functionalities and can be moved into at least two positions, wherein by at least one change of position of the operating unit (1), the functionality of the operating unit (1) is changed from one functionality to another functionality or that the rollator has at least one push mode and at least one drive mode and the operating unit (1) has at least two different functionalities, whereby a functionality is selected by a signal receivable by a receiver. 15. Method according to claim 14, characterized in that the rollator has a lighting system with at least one first light and at least one second light, wherein the selection of the position of the operating unit (1) determines whether the at least one first light functions as a front light and the at least one second light as a rear light and/or the at least one first light functions as a rear light and the at least one second light as a front light. 16. Method according to claim 14 or claim 15, characterized in that a rollator according to one of claims 1 to 13 is used as the rollator. 17. Rollator, - with a frame (34), - with wheels (7) arranged on the frame (34), - with handles (8) arranged on the frame (34), - with a seat (10), - with at least one brake, - with at least one motor (4) and - with an operating unit (1), characterized in that the rollator has at least two batteries (2). 18. Rollator according to claim 15, characterized in that at least one battery (2) is a replaceable battery, at least one battery (2) has a charging socket and/or at least one battery (2) can be charged via a charging socket. 19. Rollator according to claim 17 or claim 18, characterized in that the rollator has at least one push mode and at least one drive mode, wherein at least one battery (2) is provided for the push mode and at least one battery (2) is provided for the drive mode. 20. Rollator according to one of claims 17 to 19, characterized in that the rollator has a backrest (9) which has at least one pocket (32), at least one cup holder (33) and/or at least one stick holder strap. 21. Rollator according to one of claims 17 to 20, characterized in that the rollator has at least one flexible material (36) by which the frame (34) is at least partially covered and/or that the rollator has at least one pocket which is arranged on the frame (34). 22. Rollator according to one of claims 17 to 21, characterized in that the rollator is a rollator according to one of claims 1 to 13 and/or the rollator is used in a method according to one of claims 14 to 16. 23. Method for operating a rollator, wherein the rollator has a frame (34), wheels (7) arranged on the frame (34), handles (8) arranged on the frame (34), a seat (10), at least one brake, at least one motor (4) and an operating unit (1 ), characterized in that the rollator has at least two batteries (2), wherein the use of a battery (2) is made dependent on its charge state and/or on use of the rollator. 24. Method according to claim 23, characterized in that a rollator according to one of claims 1 to 13 or according to one of claims 17 to 22 is used as the rollator. 25. Rollator, - with a frame (34), - with wheels (7) arranged on the frame (34), - with handles (8) arranged on the frame (34), - with a seat (10), - with at least one brake, - with at least one motor (4) and - with an operating unit (1), characterized in that a circuit board (16) connected to a motor (4) via a supply line is arranged close to the motor (4). 26. Rollator according to claim 25, characterized in that the circuit board (16) is arranged in the frame (34). 27. Rollator according to claim 25 or claim 26, characterized in that the rollator has a backrest (9) which has at least one pocket (32), at least one cup holder (33) and/or at least one stick holder strap. 28. Rollator according to one of claims 25 to 27, characterized in that the rollator has at least one flexible material (36) through which the Frame (34) is at least partially covered and/or that the rollator has at least one pocket which is arranged on the frame (34). 29. Rollator according to claims 25 to 28, characterized in that the rollator is a rollator according to one of claims 1 to 13 or according to one of claims 17 to 22, and/or the rollator is used in a method according to one of claims 14 to 16 or according to claim 23 or claim 24. 30. Rollator, - with a frame (34), - with wheels (7) arranged on the frame (34), - with handles (8) arranged on the frame (34), - with a seat (10), - with at least one brake, - with at least one motor (4) and - with an operating unit (1 ), characterized in that the rollator has an acceleration sensor and/or an IMU sensor and/or at least one pressure sensor for measuring a force given by an operator in the horizontal direction. 31. Rollator according to claim 30, characterized in that the rollator is a rollator according to one of claims 1 to 13 or according to one of claims 17 to 22 or according to one of claims 25 to 29, and/or the rollator is used in a method according to one of claims 14 to 16 or according to claim 23 or claim 24. 32. A method for operating a rollator, wherein the rollator has a frame (34), wheels (7) arranged on the frame (34), handles (8) arranged on the frame (34), a seat (10), at least one brake, at least one motor (4) and an operating unit (1), characterized in that that at least one motor (4) is used as pushing assistance and/or at least one motor (4) is used as resistance for training purposes, wherein the rollator has at least one pressure sensor for measuring a force applied by an operator in the horizontal direction, wherein the value of the measured force influences the strength of the pushing assistance or the strength of the resistance. 33. Method according to claim 32, characterized in that a rollator according to one of claims 1 to 13, according to one of claims 17 to 22, according to one of claims 25 to 29 or according to claim 30 or claim 31 is used as the rollator. 34. Rollator, - with a frame (34), - with wheels (7) arranged on the frame (34), - with handles (8) arranged on the frame (34), - with a seat (10) and - with at least one brake, characterized in that the rollator has at least one gripping arm. 35. Rollator according to claim 34, characterized in that the gripping arm is remotely controlled. 36. Rollator according to claim 34 or claim 35, characterized in that the rollator has at least one motor (4). 37. Rollator according to one of claims 34 to 36, characterized in that that the rollator has a backrest (9) which has at least one pocket (32), at least one cup holder (33) and/or at least one stick holder strap. 38. Rollator according to one of claims 34 to 37, characterized in that the rollator has at least one flexible material (36) by which the frame (34) is at least partially covered and/or that the rollator has at least one pocket which is arranged on the frame (34). 39. Rollator according to one of claims 34 to 38, characterized in that the rollator is a rollator according to one of claims 1 to 13, according to one of claims 17 to 22, according to one of claims 25 to 29 or according to claim 30 or claim 31, and/or the rollator is used in a method according to one of claims 14 to 16, according to claim 23 or claim 24 or according to claim 32 or claim 33. 40. A method for operating a rollator, the rollator having a frame (34), wheels (7) arranged on the frame (34), handles (8) arranged on the frame (34), a seat (10) and at least one brake, characterized in that the rollator has at least one gripping arm, so that an operator can reach objects that would otherwise be inaccessible by means of the at least one gripping arm without having to move away from the rollator and/or that an operator can place objects in places that would otherwise be inaccessible by means of the at least one gripping arm without having to move away from the rollator. 41. Method according to claim 40, characterized in that the rollator is a rollator according to one of claims 1 to 13, according to one of claims 17 to 22, according to one of claims 25 to 29, according to Claim 30 or claim 31 or according to any one of claims 34 to 39. 42. Rollator, - with a frame (34), - with wheels (7) arranged on the frame (34), - with handles (8) arranged on the frame (34), - with a seat (10) and - with at least one brake, characterized in that the rollator has a backrest (9) which has at least one pocket (32), at least one cup holder (33) and/or at least one stick holder strap and/or that the rollator has at least one flexible material (36) by which the frame (34) is at least partially covered and/or that the rollator has at least one pocket which is arranged on the frame (34). 43. Rollator according to claim 42, characterized in that the rollator is a rollator according to one of claims 1 to 13 or according to one of claims 17 to 22 or according to one of claims 25 to 29 or according to claim 30 or 31 or according to one of claims 34 to 39, and/or the rollator is used in a method according to one of claims 14 to 16 or according to claim 23 or claim 24 or according to claim 32 or claim 33 or according to claim 40 or claim 41. 44. Method for operating a rollator, wherein the rollator has a frame (34), wheels (7) arranged on the frame, handles (8) arranged on the frame (34), a seat (10) and at least one brake, characterized in that the rollator has a backrest (9) which has at least one pocket (32), at least one cup holder (33) and/or at least one stick holder strap, so that an operator can have different things within easy reach can carry with it, and/or that the rollator has at least one flexible material (36) by which the frame (34) is at least partially covered, whereby the frame (34) is at least partially protected, and/or that the rollator has at least one pocket which is arranged on the frame (34), so that additional storage space is created on the frame (34). 45. Method according to claim 44, characterized in that a rollator according to one of claims 1 to 13, according to one of claims 17 to 22, according to one of claims 25 to 29, according to claim 30 or claim 31, according to one of claims 34 to 39 or according to one of claims 42 to 43, is used as the rollator.