| 摘要 |
<p>The machine consists of a base (2), fitted with a scraper blade (5), and driven by two side wheels (13A, 13B) along a predetermined path, by means of a follower (14), fitted on the central axis. The follower is designed to slide in a groove (15), formed in the surface (3) to be cleaned. Switching points (17) allow the cleaner to be directed as required by a direction changing mechanism (16), formed by a lifting device (18), fitted on one side of the base, and capable of lifting one of the wheels off the ground, to allow the other wheel to produce the change in direction.</p> |
