Patent ID: 6212733
Filing Date: 2001-04-10
Classification: B60B,B62B,Y10T

Abstract:
A hub and wheel assembly with an automatic moving direction adjustment mechanism mounted on a movable vehicle comprising:a swivel base assembly mounted to a frame member including a receiving space with opening downward, and a locking means movable within the receiving space;a wheel mount including a protrusion releasably inserted into and free turning within the receiving space of the swivel base assembly, and an axle; andat least one wheel rotatably mounted on the axle;wherein the protrusion has at least one cavity provided therein such that the locking means may releasably engage with the cavity for setting a movement of the wheel in a predetermined linear direction; and the hub and wheel assembly further comprises a circumferential groove on the protrusion of the wheel mount to allow the locking means to bypass and be disengaged with the cavity.