Patent ID: 7316308

Claim:
Supporting device for a transport device of a soldering apparatus for the conveying of printed-circuit boards ( 1 ) with at least two revolving, endless transport chains ( 2 , 3 ), said transport chains ( 2 , 3 ) running in guide rails ( 4 , 5 ) in a transport zone and each passing through two guide elements ( 6 , 7 and 8 , 9 ) at the ends of the transport zone, wherein, for adaptation to the width of the respective printed-circuit boards ( 1 ), the guide elements ( 6 , 7 and 8 , 9 ) are mounted on a carrier ( 10 ) such as to be manually displaceable transverse to the conveying direction, characterized in that the guide elements ( 6 , 7 and 8 , 9 ), each associated with a respective conveying chain ( 2 , 3 ), are interconnected by flexible tension elements ( 11 , 12 ), said tension elements ( 11 , 12 ) being adjustable with regard to their tensile stress and running parallel to the respective conveying chain ( 2 , 3 ) in the transport zone, the value of the tensile stress being so highly adjusted that the tension elements ( 11 , 12 ) prevent the guide rails ( 4 , 5 ) from deviating from a straight line.