An object of the present invention is to provide an obstacle transcendence device for an automatic vacuum cleaner. A obstacle transcendence device for an automatic vacuum cleaner of the present invention is installed in the main body below the automatic vacuum cleaner, to move in the land surface by mounting the principal. Obstacle transcendence device consists of two drive wheel unit, each drive wheel unit, power source, two transmission element, and, two-wheel body, made from, each transmission element is connected to each wheel body and the power source, and each wheel body receives a driving power source, and overcome obstacles on the ground surface, and, not to damage the earth's surface. .BACKGROUND 2
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