An assistive pushcart device for rollerblading includes a set of first wheels and a set of second wheels that are rotationally coupled to a frame proximate to a front and a back of the frame, respectively. A handle that is coupled to and extends transversely from the back of the frame is configured to be grasped in one or two hands of a user to stabilize the user as the user locomotes the frame along a surface. Each of set of brakes is operationally coupled to a respective one of the first wheels and the second wheels. The set of brakes is positioned to selectively slow and stop rotation of at least one of the first wheels and the second wheels. An actuator that is coupled to the handle and operationally coupled to the set of brakes is positioned to selectively actuate the set of brakes.

An electric mini push cart provided includes a cart frame, an operation platform, a bucket, and a hydraulic power device. The operation platform arranged on the rear side. The bucket is configured to load objects and located on one side of the operation platform. The hydraulic power device drives the bucket to turn over, the hydraulic power device is installed on the cart frame and located below the bucket, the hydraulic power device includes a piston rod connected to the first end. When the hydraulic power device is working, the piston rod is stretched or retracted to push or pull back the first end, so that the bucket turns around the second end, and moves away from the operation platform or falls back towards the operation platform.

A trolley for medical equipment includes a base mounted on a plurality of wheels. A brake device including at least one deformable brake pad is located beneath the trolley base. A release mechanism is provided to move the brake pad between a raised position in which it is spaced above a floor surface on which the trolley wheels rest, and a lowered position in which the brake pad is pressed against the floor surface under the weight of the brake device to a exert a braking force on the trolley.

A walking aid that assists a user in walking in an upright position. The walking aid may include a rear lower frame structure, a front lower frame structure, a first front wheel coupled to a first front lower frame member, a second front wheel coupled to a second front lower frame member, a first rear wheel coupled to the first rear lower frame member, a second rear wheel coupled to the second rear lower frame member, an upper frame structure comprising a first upper frame member, a second upper frame member, a first forearm support, and a second forearm support, a first pivot and latch mechanism pivotally coupling the first upper frame member and the first rear lower frame member together, and a second pivot and latch mechanism pivotally coupling the second upper frame member and the second rear lower frame member together.

A stand assembly and method of converting a stand assembly from a moveable configuration to a stationary configuration is provided. The stand assembly includes a plurality of wheel assemblies slidably engaged with a plurality of respective trivets, each wheel assembly being moveable between a stowed configuration and a deployed configuration, thereby moving each trivet between a deployed configuration and a stowed configuration, respectively. When in their respective deployed configurations, a distal end of each trivet is engaged with the floor, thereby causing the stand assembly to be in the stationary configuration. When in their respective stowed configurations, the distal end of each trivet is positioned between two wheels of the wheel assembly such that the wheel assembly prevents the trivet from engaging with objects on the floor, thereby minimizing adjustments required to obtain desired ground clearance.

A brake device for a swivel caster has high durability with a simple power transmission structure, wherein a brake shoe is disposed so as to face a peripheral surface of a wheel of the swivel caster, a cable connected to an operation lever is inserted into a pivot shaft of the caster to be connected to the brake shoe, and a ball chain is interposed at least in a part of the cable inserted into the pivot shaft.

A personal cart and method for using the personal cart. The personal cart has a platform support frame. Wheels are rotatably connected to the platform support frame. Handles are also attached to the platform support frame. A rectangular platform is rigidly connected to the platform support frame. The platform has a raised railing extending upwards along the outer perimeter of the platform. In a preferred embodiment the platform support frame is foldable. Also, in a preferred embodiment a plurality of tote bags is placed on the platform. Each tote bag laterally supports another tote bag and the plurality of tote bags is also laterally supported by the raised railing.

A navigation system uses a dead reckoning method to estimate an object's present position relative to one or more prior positions. In some embodiments, the dead reckoning method determines a change in position from the object's heading and speed during an elapsed time interval. In embodiments suitable for use with wheeled objects, the dead reckoning method determines the change in position by measuring the heading and the amount of wheel rotation. Some or all of the components of the navigation system may be disposed within a wheel, such as a wheel of a shopping cart.

A motorized cart retriever, which may be a cart pusher or a cart puller, can apply a force to a nest of human-propelled, wheeled carts to facilitate retrieval of the carts. The cart retriever can include a transceiver configured to wirelessly receive cart status information from cart transmitters of the wheeled carts and wirelessly report event data to a control unit. The cart status information may include an identification of the cart transmitter, a location of the cart, a lock or unlock status of a cart wheel, a misuse condition, etc. The event data can include the cart status information, a number of wheeled carts being retrieved, etc. The cart wheel may include a brake. The transceiver may communicate a message to the cart wheel to keep the brake unactuated during retrieval. The control unit may analyze the event data to detect traffic patterns of the carts.

A navigation system uses a dead reckoning method to estimate an object's present position relative to one or more prior positions. In some embodiments, the dead reckoning method determines a change in position from the object's heading and speed during an elapsed time interval. In embodiments suitable for use with wheeled objects, the dead reckoning method determines the change in position by measuring the heading and the amount of wheel rotation. Some or all of the components of the navigation system may be disposed within a wheel, such as a wheel of a shopping cart.