PURPOSE: To enable the raking up of dirt sufficiently and the preventing of damages to a carpet regardless of the type of the carpet by controlling the number of revolutions of a motor according to the condition of the surface of a floor surface.
CONSTITUTION: A sensor signal from a floor surface sensor 22 comprising a pressure sensitive electroconductive rubber is inputted into a microcomputer 36 and exchanged for a data with the microcomputer 36. The sensor data obtained is subjected to a pattern recognition by a neural network processing to obtain three kinds of judgment results--tatami mat and carpets short and long in piles. As for the tatami mat, a power brush 14 is turned OFF, as for the carpet short in piles, the power brush 14 is rotated at a low speed with the microcomputer 36 and a motor driver 40 and it is rotated at a high speed as for the carpet long in piles. This enables the setting the optimum number of revolutions of the power brush according to the type of the carpet.
| JPH1189766 | NOZZLE OF VACUUM CLEANER |
KAJITANI YUJI
KATAYAMA RITSU
NAKANISHI YUJI
UENISHI TOMOAKI
TANIMOTO YOSHIHIRO
| JPS63300733A | 1988-12-07 | |||
| JPH02268718A | 1990-11-02 | |||
| JPH02131727A | 1990-05-21 | |||
| JPH02157981A | 1990-06-18 |