A stroller frame, comprising at least one motor, particularly an electric motor, for assisted driving of the stroller frame, a pusher bar for pushing the stroller frame and at least one force sensor device for detecting a direction and/or an amount of force and/or a force component acting on the pusher bar, and/or for detecting a value derived from said force or force component, particularly a temporal change of the force or force component.

A cart may include: a driving wheel; a motor configured to rotate the driving wheel; a motor drive circuit configured to control electric power supply to the motor; a motor control device configured to control the motor via the motor drive circuit; a switching element arranged on an electric power supply path to the motor drive circuit; a switch circuit arranged separately from the motor control device and configured to switch the switching element between a conduction state and a non-conduction state; and an operation member arranged on the cart and configured to be operated by a user. The cart may operate in a manual mode in which the motor is driven when the operation member is on and the motor is stopped when the operation member is off, and in an automatic mode in which the motor is driven regardless of whether the operation member is on or off.

A hand truck having a frame with first and second ends and a handle adjacent the first end and a platform extending from the second end. Wheels adjacent the second end support the frame and platform for rolling movement. A lever member with first end pivotally connected to the frame at the first end and second free end. A position stabilizing member is pivotally connected to each side of the frame proximate the second end with each shoe assembly being pivotal to a support position extending below a respective wheel. The free end of the lever member is positioned against a surface and the frame pivoted thereabout with the shoe portion of each shoe assembly moving to the support position. An automatic braking system prevents unwanted downward movement. A repositioned lever member and multiple commonly hinged lever members allow for full stair lifting and elimination of the position stabilizing member.

One aspect of the present disclosure provides a battery-powered wheelbarrow including a battery housing, a motor, a wheel, a drive circuit, and a control circuit. The control circuit activates, during a drive requirement of the motor not being satisfied, dynamic braking. The control circuit decreases the dynamic braking through the drive circuit in accordance with a lapse of time in response to a first transition having occurred or occurring.

A pallet and a transport device for the pallet. The pallet, includes a frame having a-side parts and a rod that extends between the side parts. A span of the rod is at least half of the length of the rod. The pallet includes foot arrangements having parts configured to guide the pallet onto a bed of the transport device. The transport device includes the bed, a chassis and articulations enabling rotation of the bed relative to the chassis. The bed includes side beams that are configured to engage with the parts of the foot arrangements thereby guiding the pallet onto the bed. A system includes the pallet and the transport device.

A transpallet is provided for ground handling of goods stored on a support platform, comprising at least one motorized wheel, an electromechanical parking braking system of the wheel adapted to take on a stop configuration when not energized and a release configuration when energized and an electric power supply assembly adapted to supply electric power to the motorized wheel and to the electromechanical parking braking system. An on-board electronic control unit is arranged for the selective handling of the transpallet movement in a motorized mode of movement, a manual mode of movement or a stop mode, depending on the charge level of the electric power supply assembly.

An example apparatus includes a base including a first locking surface, a wheel including an axle, and a locking body at the axle of the wheel to rotate with the wheel. The locking body includes a second locking surface to engage the first locking surface of the base to lock the wheel. The apparatus further includes a plate spring that captures the axle of the wheel to allow wheel to rotate. The plate spring urges the second locking surface of the locking body against the first locking surface of the base to lock the wheel. The plate spring is to deflect under application of an external force to separate the second locking surface of the locking body from the first locking surface of the base to allow the wheel to roll.

Devices, assemblies, systems, and methods are disclosed for stabilizing a cart. An example cart is a surgical cart having a robotic arm thereon. A stabilizer system may be part of or used with the cart to stabilize the cart at a location. The stabilizer system may include a stabilizer and an actuator. The stabilizer may have a foot and a biaser configured to bias the foot to a retracted position and contribute to an amount of force applied to a floor supporting the cart when the foot is in a deployed position. The actuator acts on the stabilizer to overcome a bias force biasing the stabilizer to the retracted position and cause feet of the stabilizer to contact the floor. Once the feet of the stabilizer contact the floor, a spring of the biaser causes the foot to apply a predetermined force amount to the floor.

A wheel pack assembly includes a pack portion wearable by a user, a wheeled portion removably coupled to the pack portion, and a power assist system. The pack portion includes a first interfit element. The wheeled portion includes a frame, a second interfit element coupled to frame and configured to removably couple with the first interfit element of the pack portion, and a first wheel set coupled to the frame and disposed at a location spaced apart from a rear end of the wheeled portion. The power assist system includes a motor mechanically coupled to the first wheel set, at least one sensor coupled to the at least one of the first interfit element and the second interfit element, and a controller configured to operate the motor based on feedback from the at least one sensor.

An apparatus and system for facilitating the controlled ascent and descent of stepped or irregular inclines, such as a set or flight of stairs. In an embodiment, the invention comprises an apparatus and system that allows an operator to safely transport a heavy load up or down a flight of stairs. The invention may be utilized with, attached to or incorporated within a transporting carrier, such as a hand truck or hand cart, for transporting heavy cargo up or down stepped or irregular inclines. In an embodiment, the invention allows a wheel to rotate freely in one direction while regulating the rotation of said wheel in the opposite direction such that a braking force in said opposite direction is proportional to the apparent weight and angle of inclination of said carrier. In operation, a gravitationally induced increase in an apparent weight activates the invention's braking system, thereby providing a braking force to the carrier wheel.