A hand truck having improvements made to simplify and make more ergonomically use of a hand truck by an operator. The hand truck provided having adjustable handles and a bottom portion having adjustable stair climbers with improved feature and an improved wheel and brake assembly have an axle-less wheel assembly and an improved caliper mounting system. These features are discussed in detail in the forgoing.

The disclosure describes a cart having a frame, a front assembly attached to the frame, a back assembly attached to the frame, and a rotating enclosure assembly attached to the frame. The rotating enclosure assembly includes a removable side and a cage. The removable side is removable from the cage to aid in loading or unloading coils of flexible tubing and can be fixedly attached when installing the flexible tubing coiled around the rotating enclosure assembly. The cart may further include an adjustment mechanism that allows the cart to be adjusted between a mobile state and an immobile state. The back assembly may include one or more immobilizers configured to immobilize the cart into the immobile state.

A cart with lifting assistance is provided. The cart includes a forward frame having a top end and a bottom end. The forward frame makes up a front end of the cart. The cart further includes a rearward frame having a top end and a bottom end. The rearward frame makes up a rear end of the cart. Wheels are secured to the bottom ends of the forward frame and the rearward frame. A handle frame extends from at least one of the top ends of the forward frame and the rearward frame, and disposed towards the rear end around a waist height of a user. A pivoting frame is pivotally connected to the front end of the cart and pivots from the front end to beyond the front end. A latch is secured to the pivoting frame and is operable to releasably connect to a bin or container.

A motorized shopping trolley has a frame and two wheels which are driven by a drivetrain. A handle for pulling and/or pushing the trolley is provided with a force sensor which detects a force acting on the handle when being pulled or pushed. An inclination sensor detects a slope of the traveling surface and generates a slope signal. A load sensor detects a load weight of the trolley and generates a load signal. A step-detection sensor detects a step in a path of the trolley and generates a corresponding signal. A controller receives all pertinent signal from the sensors and generates a control signal for actuating the drivetrain such that the drivetrain produces a driving force corresponding to the force applied to the handle by a user.

A motorized shopping trolley has a frame and two wheels which are driven by a drivetrain. A handle for pulling and/or pushing the trolley is provided with a force sensor which detects a force acting on the handle when being pulled or pushed. An inclination sensor detects a slope of the traveling surface and generates a slope signal. A load sensor detects a load weight of the trolley and generates a load signal. A step-detection sensor detects a step in a path of the trolley and generates a corresponding signal. A controller receives all pertinent signal from the sensors and generates a control signal for actuating the drivetrain such that the drivetrain produces a driving force corresponding to the force applied to the handle by a user.

An access device is configured to be switched between a stored state in which an access member is stored in a vehicle body and a deployed state in which the access member is deployed. In the stored state, an exterior cover becomes a portion of an exterior surface of the vehicle body and the access member is stored inside the vehicle body. In the deployed state, the access member extends from the vehicle body toward a ground surface and the exterior cover is disposed on a back side of the access member.

A wheel-alternate stair climbing cart at least has one row of wheels (preferably two or more rows of wheels). Each row comprises a plurality of wheels. Two adjacent groups of wheels are intersected. The total length formed by connecting axle centers of a plurality of wheels can at least cross a vertex of three steps. The wheels on the stair at least keep contact with a vertex of two steps. The present invention better solves the problem that a traditional cart is blocked when operating on the stair or is bumpy when moving, and has the advantages of strong weight loading capability, difficult wear and low manufacturing cost.

A wheel-alternate stair climbing cart at least has one row of wheels (preferably two or more rows of wheels). Each row comprises a plurality of wheels. Two adjacent groups of wheels are intersected. The total length formed by connecting axle centers of a plurality of wheels can at least cross a vertex of three steps. The wheels on the stair at least keep contact with a vertex of two steps. The present invention better solves the problem that a traditional cart is blocked when operating on the stair or is bumpy when moving, and has the advantages of strong weight loading capability, difficult wear and low manufacturing cost.

A motorized device for transporting a human or inanimate payload. A platform is configured to accommodate the payload and a pair of wheel clusters are mounted to the platform at opposite ends thereof and are powered in rotation relative to the platform, for example by one or more electric motors housed in or on the platform or wheel clusters. Each of the two wheel clusters comprises three drive wheels arranged in a generally triangular and co-planar configuration, and each is independently powered about its respective axis of rotation by a hub-mounted electric motor. An electronic controller commands the motors powering the two wheel clusters and of each of the six drive wheels. The independent controllability of each wheel and of the wheel clusters relative to the platform allows the device to steer and to ascend and descend steps.

A motorized device for transporting a human or inanimate payload. A platform is configured to accommodate the payload and a pair of wheel clusters are mounted to the platform at opposite ends thereof and are powered in both rotation and in translation relative to the platform, for example by one or more electric motors housed in or on the platform or wheel clusters. Each of the wheel clusters comprises an arm, and a first and a second wheel rotatably mounted to respective opposite ends of the arm. Each of the wheels is independently powered about its respective axis of rotation. An electronic controller commands the motors to enable stable rolling movement of the device over a surface with only one wheel of each cluster in contact with the surface, and to allow the device to steer and to ascend and descend steps.