Electric wheelchair having mechanum wheel driven by in-wheel motor

摘要

An electric wheel chair having a mechanic wheel driven by an in-wheel motor disclosed therein includes a seat plate on which an occupant sits; A back which supports the back when the occupant is seated; A support for supporting the seat at a lower portion thereof; A drive unit provided on a lower side of the support unit, the drive unit having a stator and a rotor disposed in a radial direction, the drive unit being fixed to the rotor and having a rotation axis for bearing the stator; A hub which is provided in a cylindrical ring having a predetermined distance from the rotation axis and is disposed around the drive unit and rotates integrally with the rotor; And a plurality of roller units arranged at regular intervals along an outer circumferential surface of the hub, wherein the plurality of roller units are independently detachably attached to the hub.