THE WHEEL WHICH CAN MOVE ON FLATLAND AND EVEN ROUGH GROUND AND STAIRS

摘要

The present invention relates to a wheel which can move on a flat surface and a curved surface including a staircase. More specifically, the present invention can minimize the impact being applied to a person or an object moving by being connected to the shaft of the wheel by arranging the trajectory of the wheel (3, 4) to be as close as possible to a straight line parallel to the slope (1) of the staircase. The wheel according to an embodiment of the present invention has one or more cylinders (510) installed on a body (300) and a ring (200) to absorb the shock being applied to the wheel. The wheel can include parts made of polyurethane or a shape memory alloy.