Vacuum cleaner.

摘要

A vacuum cleaner introduces dust, as well as air, from a nozzle (7) connected with the distal end of a hose (10) into a dust collecting section (8) in the cleaner body through an intake section (11), while detecting, by means of a detector (38), the volume of dust being introduced, and controls the output of an electric blower (9) in accordance with the detected volume. One end of the intake section (11) is connected with the proximal end of the hose (10), while the other end projects into the dust collecting section (8). Light-emitting (15) and light-receiving (16) elements are provided in the intake section (11) to constitute the detector (38) so as to enable positive detection of dust, easy checking of the contamination of the detector (38), and easy wiping of the detector (38). <IMAGE>