A tipping prevention unit that prevents tipping of an image forming apparatus includes shafts holding a wheel of the image forming apparatus, a shaft that abuts the image forming apparatus at a position higher than the shafts, and a shaft that contacts a floor surface on which the image forming apparatus is placed at a position further protruding to the outside of the image forming apparatus than the wheel of the image forming apparatus.

A bracket assembly includes a bracket for attachment to a shopping cart and a cover connected to the bracket and covering at least part of the bracket. The bracket includes a metal plate having first and second faces, where the length is greater than the width, and the width is greater than the thickness. The bracket has a projection extending outward from the first face and a recess extending inward from the second face and corresponding to the projection. The cover has two walls and a cavity defined between the walls, and the bracket is received within the cavity such that the first and second faces each confront one of the walls. The cover further has a slot in at least one wall, such that the cover is press-fit on the bracket and the projection is received in the slot to retain the cover in connection with the bracket.

A pushcart according to the present disclosure provides a warning on the basis of a first weight at a position outside a region between a shaft of front wheels and a shaft of rear wheels when viewed from the vertical direction and a predetermined weight. For example, the predetermined weight is the weight on a mounting portion located between the shaft of the front wheels and the shaft of the rear wheels when viewed from the vertical direction. When the first weight is larger than the predetermined weight, an informing unit can provide a warning by using a sound, light, and the like and enable a user to recognize that there is a possibility that the pushcart will turn over.

A self stabilizing system which has an incompressible coil at least partially encompassed in a housing, and which controls a foot of a device to be stabilized. The coil abuts a plunger, which plunger is for allowing a user to selectably lock the elevation by use of a pin which fits within a plurality of annular grooves on the plunger. In a first embodiment, a pair of coils surround the plunger on either side and control a pair of feet, thus allowing automatic stabilization on an uneven surface. In a second embodiment, a single coil is controlled by a spring which abuts the plunger allowing a spring-loaded system for selecting an elevation to lock the plunger.

A cart may include: a carriage; a wheel supported by the carriage and touching ground; a holding member rotatably supported by the carriage about a steering axis and rotatably supporting the wheel about a rotation axis; a steering handle to be gripped by a user; an input sensor configured to detect an operation on the steering handle by the user; a steering motor configured to be actuated in response to the operation by the user detected by the input sensor; and a transmission mechanism connecting the steering motor and the holding member and configured to rotate the holding member about the steering axis in response to actuation of the steering motor. The steering handle and the transmission mechanism may be mechanically separated, and the transmission mechanism may include a torque limiter interposed between the steering motor and the holding member.

The present disclosure provides a handcart that facilitates alignment of a load even when a heavy load is placed. To this end, the handcart includes: a vehicle main body including a wheel on a lower surface and a handle erected on a rear portion; and a platform disposed on an upper surface of the vehicle main body to be movable in a lateral direction.

A shopping cart wheel includes a braking apparatus, and electronics that control the braking apparatus in response to wireless signals. The wireless signals include low frequency electromagnetic signals within a low frequency band and high frequency signals within a high frequency band. The braking apparatus includes a moveable interposer and an interposer controller where the moveable interposer is moved between braking and non-breaking positions at least partially with magnetic force.

A pushcart according to the present disclosure provides a warning on the basis of a first weight at a position outside a region between a shaft of front wheels and a shaft of rear wheels when viewed from the vertical direction and a predetermined weight. For example, the predetermined weight is the weight on a mounting portion located between the shaft of the front wheels and the shaft of the rear wheels when viewed from the vertical direction. When the first weight is larger than the predetermined weight, an informing unit can provide a warning by using a sound, light, and the like and enable a user to recognize that there is a possibility that the pushcart will turn over.

A shopping cart wheel includes a braking apparatus, clutch mechanism and electronics that control the braking apparatus in response to wireless signals. The wireless signals include low frequency electromagnetic signals within a low frequency band and high frequency signals within a high frequency band.

The present disclosure is about assemblies containing shiftable parts like three sided open-frames or independent bars with stub-axles. In some embodiments shiftable parts are designed to slide within encompassing tubes. In other embodiments shiftable parts are designed to be turnable by attaching them on pivots. These shiftable components are used for mounting general wheels or multi-wheel star assemblies on them. Such assemblies can be either attached to or built into movable objects like luggage or robots to facilitate their movement over stairs. When the wheels are positioned to keep the body of the movable object away from the edges of the stairs, the object can be moved upstairs and also downstairs without getting scratched. When the wheels are shifted to another position, the objects can be easily moved over flat surfaces. One of these positions will be for storing the object in lesser space.