Patent ID: 8281456

Claim:
An upright vacuum cleaner for cleaning a surface, the upright vacuum cleaner comprising: an upper body having a handle; a base unit; a carriage configured to move the base unit on the surface, the carriage including a wheel disposed in a rear portion of the base unit; a motor-fan unit disposed in the base unit and configured to create a partial vacuum at the surface; a tilting joint operable to provide relative tilting between the upper body and the base unit about a pivot axis extending in a horizontal direction when the vacuum cleaner is in a position of use; a pivotable carrier member having the wheel disposed thereon, the carrier member having a pivot axle that is spaced apart from a rotatable axle of the wheel; and a pivoting mechanism disposed on the tilting joint in a vicinity of the carrier member and configured to pivot the carrier member and the wheel during a pivoting movement of the upper body relative to the base unit.