Patent ID: 9089888
Filing Date: 2015-07-28
Classification: B21D

Abstract:
1. A press brake having a supporting structure comprising: a flank located on each side of the press brake, each flank having a top portion and a bottom portion; the top portion of each flank being connected by at least one upper crossbeam, and the bottom portion of each flank being connected by a lower bench and secured in a non-movable manner relative to said flanks; said lower bench having a plate-shaped body having a front surface, a rear surface opposite the front surface, and an edge, said edge comprising an upper edge portion suitable for being at least partially connected to a mould, said press brake further comprising a rammer movably connected relative to said supporting structure along a direction transverse to a longitudinal extension thereof to approach said lower bench, said rammer supporting a tool suitable for cooperating with said mould to process a piece interposed therebetween; wherein said lower bench includes a first slot in a bench body forming a first window, said first window opening on the edge of said bench forming a first portion of the bench body; wherein said lower bench has includes a second slot in the bench body forming a second window, said second window having a window edge which is closed so as to avoid having the second window opening on the edge of said bench; said second window extending substantially along a direction inclined relative to said upper edge of the bench and partially overlapping said first window in a direction transverse to said upper edge of the bench; said second window forming a third portion of the bench body; and wherein said first and second slot provide variable flexibility along the lower bench so as to ensure a substantial planarity of the upper edge of the bench.