FLOOR SUCTION DEVICE FOR VACUUM CLEANER AND VACUUM CLEANER HAVING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a floor suction device having a low-noise turbine capable of preventing the lowering of a rotating torque. SOLUTION: This floor suction device 100 for a vacuum cleaner is provided with a rotary brush 20 facing a suction port and rotatably provided inside a suction port body 10, and the turbine 40 having a plurality of vanes 45 and 46 around a rotary shaft 41 and rotatably provided in a turbine chamber 14; and is so constituted that the turbine 40 is rotated by receiving a suction air flow from the suction port 11 with the vanes 45 and 46 and rotatingly drives the rotary brush 20. The vanes of the turbine 40 are divided into a left vane group 45A and a right vane group 46A in its rotation axis direction, the respective vanes 45 of the left vane groups 45A and respective vanes 46 of the right vane group 46A are so disposed as to be mutually shifted in the circumferential direction and clearances 47 are formed between root parts of the respective vanes 45 and 46 and the rotary shaft 41. COPYRIGHT: (C)2007,JPO&INPIT