Patent ID: 7784317
Filing Date: 2010-08-31
Classification: B21D,B21J,F16P

Abstract:
1. Safety system for a bending press with a stationary bench beam and a press beam which can be linearly displaced in a guide arrangement relative to the bench beam by means of a drive system, and with bending tools in tool holders disposed at oppositely lying end faces of the bench beam and of the press beam forming an operation area between mutually facing forming regions, the safety system comprising: a light beam transmitter and a light beam receiver monitoring the operating region to prevent trapping of a foreign body; wherein the bending tool disposed in the press beam comprises a plurality of slats adjacently arranged with respect to one another such that the slats collectively form the bending tool, said slats including at least one reference slat and at least one tool slat which can be displaced relative to the reference slat; each of the slats having a recess therein, the recesses of the slats when aligned with one another forming a beam passage through the bending tool for passage of a light beam between the light beam transmitter and the light beam receiver, the light beam extending parallel with the end face of the press beam, misalignment of one or more tool slats relative to the reference slat causing the misaligned tool slat(s) to block the light beam.