Cyclonic vacuum cleaner

Abstract

A cyclonic vacuum cleaner having a simple structure with low airflow leakage and excellent maintainability despite its long suction passage. A dust-collecting portion 11 includes a cyclonic portion 14 which is approximately cylinder-shaped, having a bottom and an introducing portion 15 for introducing dust-laden airflow to the cyclonic portion 14. The cyclonic portion 14 and the introducing portion 15 are integrally formed and then a vortex flow generating member 21 is provided in the dust-collecting portion 11. Thus, the structure of the dust-collecting portion can be simplified and thus the dusts can be dumped by detaching the dust-collecting portion 11 together with the introducing portion 15. Consequently, maintenance can be easily performed. Further, as the number of joints can be reduced, possibility of airflow leakage within the suction passage is reduced, so that dust-collecting performance can be enhanced.

Dependencies are inferred from the claim text.