Patent ID: 7360276

Claim:
An electric vacuum cleaner comprising a suction tool main body, a vacuum cleaner main body which communicates to the suction tool main body, and a dust collector provided at the vacuum cleaner main body, wherein the dust collector includes a dust collection container, a tubular body disposed at substantially a central portion of the dust collection container in a vertical direction, a collar portion which is formed to project towards an inner wall of the dust collection container from an outer periphery of the tubular body and which is curved downward as the color portion approaches the inner wall of the dust collection container, vent holes which are piercingly provided at the tubular body upward of the collar portion to communicate to a discharge outlet, and an intake which opens at the dust collection container upward of the collar portion in a direction for generating a spiral flow within the dust collection container, and wherein the collar portion is formed with a downwardly opening cylinder which downwardly projects from a lower portion of the collar portion and which is concentric with the tubular body.