Abstract

Disclosed is a brake device, a wheel body assembly and a rollator. The brake device includes a shaft body, a housing, a magnetic inductor and a magnet assembly, the housing sleeved outside the shaft body and configured coaxially with the shaft body, the housing being rotatable relative to the shaft body, the magnetic inductor having a coil wound thereon, the magnet assembly including a plurality of magnets spaced along the circumference of the shaft body, wherein one of the magnetic inductor or the magnet assembly is connected to the shaft body and the other is connected to the housing so that when the housing rotates relative to the shaft body, the coil is capable of cutting the magnetic field formed by the magnet assembly so as to produce resistance in the opposite direction of rotation of the housing or the shaft body, which can play a braking role on the wheel body integrated or connected with the brake device. And because the braking force is related to the rotation of the housing or the shaft body, rather than friction braking, it will not produce an emergency stop effect, which is more safer and also can reduce wear and improve the service life of the brake device. Meanwhile the brake device is simple in structure and easy to prepare.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons
• H02K 49/06 - Dynamo-electric clutchesDynamo-electric brakes of the synchronous type

Abstract

Disclosed are a brake apparatus, a wheel body assembly, and a rollator. The brake apparatus comprises a shaft body, a housing, a magnetic induction mechanism and an adjustment mechanism. The housing rotates relative to the shaft body; the magnetic induction mechanism is arranged in the housing to generate resisting force opposite to a rotation direction of the housing or the shaft body to the housing or the shaft body by a magnetic field reaction when the housing rotating relative to the shaft body. The adjustment mechanism is connected to the magnetic induction mechanism for adjusting a magnitude of the resisting force. The magnetic induction mechanism is capable of playing a braking role on the wheel body integrated or connected with the brake apparatus, because its braking force is related to the rotation of the housing or shaft body, rather than friction braking, it will not produce an emergency stop effect.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons
• B60T 1/06 - Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission
• H02K 49/06 - Dynamo-electric clutchesDynamo-electric brakes of the synchronous type

Abstract

Disclosed are a brake apparatus, a wheel body assembly and a rollator. The brake apparatus includes a shaft body, a housing, a magnetic induction mechanism, a rectifier mechanism and an adjustment mechanism, the housing is rotatable relative to the shaft body, the magnetic induction mechanism is used to generate resisting force opposite to a rotation direction of the housing or the shaft body by a magnetic field reaction when the housing rotating relative to the shaft body, the rectifier mechanism is used to rectify a current of the magnetic induction mechanism, the adjustment mechanism is used to adjust the magnitude of the resisting force generated by the magnetic induction mechanism. By setting the rectifier mechanism to rectify output of the multiple wires of the magnetic induction mechanism, the structure of the adjustment mechanism can be simplified, making the overall structure of the brake apparatus simpler.

IPC Classes  ?

• F16D 63/00 - Brakes not otherwise provided forBrakes combining more than one of the types of groups

Abstract

Disclosed in the present invention are a movable seat and a control method therefor, and an apparatus having a storage function. The control method for a movable seat comprises: acquiring the first current rotation speed of wheels when a movable seat is in a manual mode; according to the first current rotation speed, calculating a preset driving force required by the wheels when the movable seat is in an electric mode; acquiring a first switching signal for switching the movable seat from the manual mode to the electric mode; and sending to a driver a driving signal for operating under the preset driving force. During the process of switching the movable seat from the manual mode to the electric mode, rotation speeds of the wheels can be kept consistent, such that a vehicle speed can be kept stable and a user does not experience an obvious speed difference, and thus the comfort is better; and the user can be prevented from colliding with the movable seat or falling off the movable seat due to inertia, and thus the safety is higher.

IPC Classes  ?

• A61G 5/02 - Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
• A61G 5/04 - Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
• A61G 5/10 - Parts, details or accessories

Abstract

A control method for an intelligent rollator, and a control device, an intelligent rollator, a controller thereof. The intelligent rollator is configured with a vehicle body, a front wheel and rear wheels driven by a motor. The method includes the following steps: obtaining the moving speed of the intelligent rollator; obtaining the attitude of the intelligent rollator; and reducing the torque output of the motor, when the attitude indicates that the front end of the intelligent rollator is tilted upward, and the moving speed of the intelligent rollator is less than a first threshold. The intelligent rollator can determine whether it is necessary to enter an intelligent crossing-curb mode, in which the torque output of the motor is reduced, so as to prevent the vehicle body out of control due to the increase of torque caused by the too large speed when getting over curbs.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons
• G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric

Abstract

A power-assisted steering control method and a power-assisted steering control device (400) of a walking aid (10), and a memory (500). The power-assisted steering control method comprises: obtaining a first moving speed of a left wheel (200) and a second moving speed of a right wheel (300) (S110); determining whether the left wheel (200) and/or the right wheel (300) are in a steering state (S120); if yes, calculating a steering angle estimated value or a speed difference value between the first moving speed and the second moving speed according to the first moving speed and the second moving speed (S130); obtaining a steering power-assisted compensation value according to the steering angle estimated value or the speed difference value, and performing power-assisted compensation on the left wheel (200) and/or the right wheel (300) (S140). Power-assisted compensation is performed when the walking aid (10) steers, such that more labor can be saved when a user pushes the walking aid (10) to steer, the impact of steering on an advancing speed of the walking aid (10) is reduced, normal advancing is guaranteed, sudden pause caused by an increase of steering resistance is avoided, and safety can be improved.

IPC Classes  ?

• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
• A61H 3/04 - Wheeled walking aids for patients or disabled persons

Abstract

The present disclosure discloses a method, a device of steering assist control for a walker, and a memory. The method includes acquiring a first moving speed of the left wheel and a second moving speed of the right wheel; determining whether the left wheel and/or the right wheel is in a steering state; calculating a steering angle estimate or a speed difference between the first moving speed and the second moving speed when in the steering state; acquiring steering assist compensations; and performing an assist compensation on the left wheel and/or the right wheel. The method can make the user more effortless when pushing the walker to turn, making it more convenient for users with less strength to use the walker, and reducing impact of the steering on the travel speed. Sudden stop caused by the increase of steering resistance can be avoided, and safety can be improved.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons

Abstract

Disclosed is a fall-resistant control method for an intelligent rollator, an intelligent rollator and a controller. The intelligent rollator has a vehicle body, front wheels and/or rear wheels configured at the bottom of the vehicle body and driven by a motor. The fall-resistant control method includes: recording the current position of the motor as the initial position when the moving speed of the intelligent rollator exceeds a first threshold and the acceleration of the intelligent rollator exceeds a second threshold; determining a first braking torque according to the position change of the motor relative to the initial position, wherein the greater the position change, the greater the first braking torque; determining a second braking torque according to the moving speed and/or acceleration of the intelligent rollator, wherein the greater the moving speed and/or the acceleration, the greater the second braking torque; determining the fall-resistant braking torque according to the first braking torque and the second braking torque.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons
• B60T 7/12 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger
• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 8/171 - Detecting parameters used in the regulationMeasuring values used in the regulation

Abstract

An intelligent rollator has a vehicle body, a seat provided in the vehicle body for a person to sit or place items on, and front and rear wheels provided at the bottom of the wheels, driven by motors. A power-assist control method includes the following steps: obtaining the load weight of the vehicle body; and entering a first power-assist compensation mode to compensate the torque output of the motor according to a first power-assist compensation threshold, when the load weight is greater than a set threshold. The first power-assist compensation threshold is direct proportional to at least one of the following parameters: the load weight of the intelligent rollator, and the moving speed of the intelligent rollator.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons
• A61G 5/04 - Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
• A61H 3/00 - Appliances for aiding patients or disabled persons to walk about

Abstract

The present application discloses a braking apparatus, a wheel body assembly and a walker. The braking apparatus comprises a shaft body, a housing, a magnetic induction mechanism and an adjustment mechanism. The housing may rotate relative to the shaft body. The magnetic induction mechanism is used to generate resistance against the rotation direction of the housing or shaft body by means of a magnetic field reaction when the housing rotates relative to the shaft body, which may have a braking effect on a wheel body integrated with or connected to the braking apparatus. Moreover, since the braking force thereof is related to the rotation of the housing or shaft body, and is not friction braking, the braking force does not produce an emergency stop effect, which is safer, and may also reduce wear and increase the service life of the braking apparatus. The adjustment mechanism comprises a resistor body, an abutment member used for abutting against the resistor body, and an adjustment member connected to the abutment member. The resistor body and the adjustment member are electrically connected to the magnetic induction mechanism separately. The adjustment mechanism is used to adjust the magnitude of the resistance, so that the braking apparatus may have a wider application range and be more intelligent.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons

Abstract

An anti-skid and anti-fall control method for a smart rollator, the smart rollator, and a controller. The smart rollator comprises a rollator body, and front wheels (11) and rear wheels (12) are provided at the bottom of the rollator body, and the front wheels (11) or the rear wheels (12) are driven by a motor. The anti-skid control method comprises: when the smart rollator moves, obtaining an anti-skid control parameter of the smart rollator, the anti-skid control parameter comprising at least one of the following: the rotational speed of the motor, the rotational acceleration of the motor, and an anti-skid control level of the smart rollator (S11); and applying, to the motor, a torque opposite to the rotation direction of the motor, the magnitude of the torque being positively correlated with the magnitude of the anti-skid control parameter (S12). In the anti-skid control method, the magnitude of the reverse torque applied to the motor is adjusted according to the anti-skid control parameter, thereby improving anti-skid performance of the smart rollator, and realizing safter use of the smart rollator.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons

Abstract

A brake device, a wheel assembly and a walking aid. The brake device (10) comprises a shaft (100), a housing (200), a magnetic induction member (310) and a magnet assembly (320), wherein the housing (200) is sleeved around the shaft (100) and is coaxially arranged with the shaft (100), and the housing (200) can rotate relative to the shaft (100); a coil (311) is wound around the magnetic induction member (310), the magnet assembly (320) comprises a plurality of magnets arranged at intervals in a circumferential direction of the shaft (100), one of the magnetic induction member (310) and the magnet assembly (320) is connected to the shaft (100), and the other one of the magnetic induction member and the magnet assembly is connected to the housing (200), such that when the housing (200) rotates relative to the shaft (100), the coil (311) can cut the magnetic field created by the magnet assembly (320), thereby generating a resistance opposite the direction in which the housing (200) or the shaft (100) rotates, and thus braking can be applied to a wheel (20) integrated with or connected to the brake device (10); and since the braking force thereof is related to the rotation of the housing (200) or the shaft (100), rather than friction braking, an emergency stop effect cannot be provided, the safety is higher, abrasion can be reduced, the service life of the braking device (10) is prolonged, and the brake device (10) has a simple structure and is easy to prepare.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons

Abstract

The present application discloses a braking device, a wheel assembly, and a walking aid. The braking device comprises a shaft, a casing, a magnetic induction mechanism, and an adjustment mechanism. The casing is rotatable relative to the shaft; the magnetic induction mechanism is disposed in the casing and is configured to generate resistance, against the rotation direction of the casing or the shaft, to the casing or the shaft by means of a magnetic field reaction when the casing rotates relative to the shaft; the adjustment mechanism is connected to the magnetic induction mechanism and is configured to adjust the resistance. The provision of the magnetic induction mechanism to generate resistance can achieve braking of a wheel body integrated with or connected to the braking device, and because the braking force is related to the rotation of the casing or the shaft, rather than frictional braking, the sudden stop effect can be prevented, such that the safety is higher, the wear can be reduced, and the service life of the braking device is prolonged. In addition, the braking device has a simple structure and is easy to manufacture, and the provision of the adjustment mechanism to automatically adjust the resistance causes the braking device to be applicable in a wider range and be more intelligent.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons

Abstract

Disclosed are a braking apparatus, a wheel assembly, and a mobility aid. The braking apparatus comprises a shaft body, a housing, a magnetic induction mechanism, a rectifying mechanism, and an adjusting mechanism, the housing being capable of rotating relative to the shaft body, the magnetic induction mechanism being used to generate resistance opposite to a rotation direction of the housing or the shaft body using a magnetic field reaction when the housing rotates relative to the shaft body, the rectifying mechanism being used to rectify a current of the magnetic induction mechanism, and the adjusting mechanism being used to adjust the magnitude of the resistance generated by the magnetic induction mechanism. By means of configuring the rectifying mechanism, multi-wire output of the magnetic induction mechanism can be rectified, and the structure of the adjusting mechanism can be simplified, so that the overall structure of the braking apparatus is simpler and more compact, taking up less volume; and by means of providing the adjusting mechanism for automatically adjusting resistance, the braking device can be more widely applied and made more intelligent.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons

Abstract

A power-assisted control method and apparatus for a smart walking aid, a smart walking aid (100), and a controller. The smart walking aid (100) comprises a vehicle body, the vehicle body being provided with a cushion (101) used for sitting or placing an article, the bottom part of a vehicle wheel being provided with a front wheel and a rear wheel, and the front wheel or the rear wheel being driven by an electric motor. The method comprises the following steps: acquiring the load weight of the vehicle body (S201); and when the load weight exceeds a set threshold, entering a first power-assisted compensation mode, in which the torque output of the electric motor is compensated according to a first power-assisted compensation threshold, wherein the first power-assisted compensation threshold is proportional to at least one of the following parameters: the load weight of the smart walking aid and the moving speed of the smart walking aid (100) (S202). The smart walking aid (100) can still be used safely when the load difference is huge, which prevents a user from being dragged down due to the excessively large torque output of the electric motor under load or no-load conditions, or prevents insufficient momentum due to the excessively small torque output of the electric motor under manned conditions.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons
• A61G 5/04 - Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven

Abstract

A control method and apparatus for a smart walker (100), the smart walker (100), and a controller. The smart walker (100) comprises a walker body, front wheels, and rear wheels, and the rear wheels are driven by a motor. The method comprises the following steps: obtaining the moving speed of the smart walker (100); obtaining a pose of the smart walker (100); and when the pose indicates that a front end of the smart walker (100) inclines upwards, and the moving speed of the smart walker (100) is less than a first threshold, reducing a torque output value of the motor. Therefore, the smart walker (100) can intelligently determine whether to enter a smart curb crossing mode, and reduce the torque output value of the motor in the smart curb crossing mode, thereby avoiding a situation in which the walker body is out of control due to a greatly increased torque caused by a fast speed during curb crossing.

IPC Classes  ?

• A61H 3/04 - Wheeled walking aids for patients or disabled persons
• A61G 5/06 - Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle-mounting facilities, e.g. for climbing stairs