Importance

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Abstract

A cyclonic vacuum cleaner whose components are few enough to simplify maintenance, preventing the leakage of airflow. A dust collecting container 23 includes an outer cyclonic cylinder 21 and an inner cyclonic cylinder 22. The inner cylinder 22 is formed integrally with a vortex flow generating member 30 including outer and inner vortex flow generating portions 32 and 33. The outer portion 32 allows dust-laden air to turn into a vortex flow falling helically along a peripheral inner surface of the outer cylinder 21. The vortex flow is then turned upwardly on a bottom of the container 23, turning into a vortex flow along a peripheral outer surface of the inner cylinder 22. This vortex flow is then turned into a vortex flow along the peripheral inner surface of the inner cylinder 22 by the inner portion 33, turned upwardly in the center of the bottom of the container 23, passing through a mesh filter 45 and finally sucked into an air suction hole 19 of the cleaner body 1.

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First Claim