| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum cleaner having a self-travelling function capable of eliminating labor for hooking to obstacles when pulling around the body and solving the hooking condition easily. SOLUTION: The vacuum cleaner has a travelling roller 10 coupled to a drive motor 14, a vacuum cleaner body 1 (hereinafter referred to as a body) having a motor driven blower and a dust collecting function, a hose coupled to the body 1, a control means for driving the drive motor 14 according to the signals from a tensile force detecting means for detecting the tensile force of the hose and controlling the body 1, and further an obstacle detecting means 23 for detecting the obstacles. The control means drives and controls the drive motor 14 so as to move the body 1 forward or backward by a predetermined time TP or a predetermined distance LP according to the signals from the tensile force detecting means and the obstacle detecting means 23, thus the vacuum cleaner has the self travelling function in which the labor for pulling around the body can be reduced, and the hooking condition in pulling around the body can be easily solved. COPYRIGHT: (C)2009,JPO&INPIT
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