Bending machine, in particular bending press, having safety system

The invention relates to a bending machine, in particular a bending press, comprising an upper bar (7) and a lower bar (9), the upper bar (7) being displaceable in a working direction (z) of the bending machine (1) in order to form a workpiece by bending along a bending line extending in a width direction (y) of the bending machine (1), the bending machine (1) comprising a safety system (12), the safety system (12) has a first functional element (13a) and a further functional element (13b) for monitoring a safety region between the two functional elements (13a, 13b) and between the upper beam (7) and the lower beam (9), the safety system (12) being arranged to follow a movement of the upper beam (7) in the working direction (z). The first functional element (13a) and the other functional element (13b) are mechanically connected to one another via a flexible traction transmission means (16) for changing the position of the functional elements (13a, 13b) and an adjusting device (17), the adjusting device (17) c