Wheel, wheel device and inverted pendulum type vehicle

摘要

An omni-wheel of a highly compact and light-weight is provided. The omni-wheel includes a disk-shaped hub member (110), a plurality of support arms (114) extending axially from the peripheral part of the hub member and arranged along a circle concentric to a rotational center line of the hub member at a regular interval, and a free roller (140) rotatably supported by a free end of each support arm around a rotational center line extending tangentially to a circle concentric to the rotational center line of the hub member and passing through a center of the free roller. The present invention also provides a wheel device incorporated with such a wheel and an inverted pendulum type vehicle using such a wheel device as a tail wheel unit.