| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an automatic cleaning device for inside a room which can clean high places such as ceiling, wall, and furniture automatically. SOLUTION: Four propellers 2 are installed inside a body case and connected to ultrasonic motors 3 to be rotated respectively, and the lower case plate 1a of the body case is inclined so that the central part lies low, and a charging coil 4 is installed in the center of the lower case plate 1a, and on this coil 4 a chargeable battery 5 is mounted. A lower ultrasonic vibrator 6 for sensor is installed on the lower case plate 1a in the center of the coil 4, and an upper ultrasonic vibrator 7 is mounted on the upper case plate 1b of the body case, and four side-part ultrasonic vibrators 8 for sensor are installed on the side plate 1c of the body case. Thus the revolving speeds of the propellers 2 are controlled while the ceiling and walls are sensed by the upper ultrasonic vibrator 7 and side-part ultrasonic vibrators 8 of the body 14 of the cleanning device, and the device body 14 is moved along the ceiling or wall, and thereby dust, etc., attached to them is removed by a dust adsorption paper 13.</p> |
