Patent ID: 8370990

Claim:
An improved structure for robotic cleaner, that comprises at least: a chassis with plurality of spherical casters fixed to the periphery of bottom deck that can be free to roll when exerted an external force, a dust collector mounted on the chassis that can move together with the chassis to collect the miscellaneous articles and dusts along the path of movement, a lifting actuation mechanism mounted on the chassis that includes a lifting power supply at least to output power through a linking device as a minimum, a first swing arm set that comprises of two parallel and extending first swing arms as a minimum with one end of the first swing arm jointed respectively to the linking device of the lifting actuation mechanism and driven to rotate pivotally to perform the action of support and outward stretch or inward retraction and with the other end of the first swing arms are mounted a drive wheel each, a second swing arm set that comprises of two parallel and extending second swing arms as a minimum with one end of the first swing arm jointed respectively to the linking device of the lifting actuation mechanism and driven to rotate pivotally in a direction opposite to the first swing arm set to perform the action of support and outward stretch or inward retraction, and with the other end of the second swing arms are mounted a driven each, plural advancing power supplies mounted at the middle section of the first swing arms each that can drive each drive wheel to rotate in forward and backward.