JPS6464614A - Electric cleaner - Google Patents

Abstract

PURPOSE: To make a vacuum cleaner quiet by supporting the small diameter supporting part of the front part covering cylinder of a sound insulation cylinder through a front side buffer body to the front side partition wall of a main body case and supporting the rear part of a rear part covering cylinder through a rear side buffer body to the rear side partition wall of the main body case. CONSTITUTION: The sound insulation cylinder 8 is divided into the front part covering cylinder 9 for covering a fan case 7 and the rear part covering cylinder 10 for covering a motor 6 and constituted. The small diameter supporting cylinder part 15 is disposed on the front bottom surface of the front part covering cylinder 9 and the front part covering cylinder 9 is held to the fan case 7 by an annular blower buffer body 17 made of synthetic rubber whose cross section is L-shaped. By the rear side buffer body 21 made of the synthetic rubber put on the rear part bearing 22 of the motor 6, fitting to an opening 20 for holding the rear part covering cylinder 10 is performed and holding is performed. The front side buffer body 25 fitted to the small diameter supporting cylinder part 15 is inserted and supported to the supporting hole 29 of the front side partition wall 28 and abutted to a dust collecting chamber rear wall 26 and the projection part 24 of the rear side buffer body 21 projecting from the rear side covering cylinder 19 is fitted to a recessed part 31 and supported. The outer periphery of the fan case 7 is most largely vibrated by the operation of a motor-driven blower 5, however, the vibration of the small diameter supporting cylinder part 15 of the sound insulation cylinder 8 becomes extremely small. Exhaust is returned from the sound insulation cylinder 8 from downward to upwards and noise propagated through air is insulated.