Aggregate guiding plate fabricating method for spreader device, involves utilizing bent plate and longitudinal partitions, and assembling longitudinal partitions on plate by engaging projecting elements with openings

摘要

The method involves utilizing a bent plate (4) provided with a series of openings (47) i.e. slots, whose locations correspond to locations of longitudinal partitions (6), where the plate is bent transversally and symmetrically with respect to a median longitudinal plane. The longitudinal partitions provided with complementary projecting elements (600) along their respective lower edges, are used. The longitudinal partitions are assembled on the plate by engaging the projecting elements with the openings.