Patent ID: 7062819

Claim:
A device for preventing the deposit of foreign bodies on guides ( 10 ) of flats ( 7 ) said device comprising a drive system for moving the flats ( 7 ), which includes guide wheels, having toothed gears ( 9 ) and a cogged belt having an inner surface and an outer surface( 23 ), said inner surface is equipped, with one or more scraping or cleaning elements ( 40 , 41 , 42 ) that eliminate the accumulation of foreign bodies from the guides ( 10 )by direct contact of the scraping or cleaning elements ( 40 , 41 , 42 ) with the guides ( 10 ), on which the resting elements of the flats ( 7 ) are moved, additionally said outer surface of said cogged belt is equipped with equally spaced raised protuberances ( 24 ) for interacting with toothed gears from a cogged belt driving mechanism, each raised protuberance being separated from one another by lower portions ( 25 ).