Floor-cleaning device
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United States of America Patent
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N/A
Issued Date -
Sep 25, 2008
app pub date -
Mar 23, 2007
filing date -
Mar 23, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A floor-cleaning device primarily comprises a pair of driving units provided at two opposite sides of a main body thereof wherein the driving units are electrically connected to a control unit and a power-supply unit which are both deposited in the main body so that the main body is capable of moving freely on a substantial surface. Particularly, a moving-along-edge sensing unit is provided at the left or right side of the main body to conduct a movement of the main body along the edge of the surrounding objects. The sensing unit is composed of non-contact sensing components so as to permit the main body to move along the edge of the surrounding objects with a predetermined distance in a continuous slightly oscillatory S-shaped route. In virtue of the sensing unit, the main body can automatically approach and connect to a charger for automatic charge.
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