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 ʹslideʹ within encompassing tubes. In other embodiments shiftable parts are designed to be ʹturnableʹ 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.
Positionable wheels for moving objects over stairs
2025-01-29
Patent
Electronic Resource
English
wheels for overcoming stairs with slide expansion structure
European Patent Office | 2025
|