Patent ID: 7578384
Filing Date: 2009-08-25
Classification: B65G

Abstract:
1. A link for a conveyor chain, comprising: articulation means for articulated connection to a similar and adjacent link; a main base body which comprises two shoulders, said shoulders protruding upward from ends of transverse sides of said main base body and being arranged parallel to a direction of advancement of the chain; first and second shafts that have ends thereof rotatably supported with said pair of shoulders; first rollers being rotatably associated with said first and second shafts; second rollers associated on said pair of first and second shafts, that have a smaller diameter than said first rollers; at least one first pair of supporting elements which are activatable when a load passes thereon, protrude from said main base body and are arrangeable on a same arrangement plane which is transverse with respect to a plane of arrangement of said pair of first and second shafts, said first pair of first supporting elements comprising arc-shaped seats and said second rollers having a diameter that is smaller than said arc-shaped seats such that said second rollers being supported in a loaded condition by said at least one pair of first supporting elements; at least one pair of second supporting elements which protrude from said main base body and lie on a plane which is parallel and distinct with respect to the plane of arrangement of said first supporting elements; and a third shaft, with which further first rollers are associated rotatably, said third shaft being directly supported in guides of said at least one pair of second supporting elements and said third shaft having ends thereof that are free and not connected to said shoulders protruding from said main base body.