Invalidating device for perforating plane objects

摘要

The device for invalidating plane objects, in particular defective products in the securities sector, such as banknotes, notes of value, etc., by perforating means, has a horizontal base plate (9) onto which the objects (14) to be invalidated are placed, and die plates (13, 17, 18) which are vertically movable and parallel to said base plate, as well as a drive mechanism by which the die plates can be displaced up and down. The perforating means comprise at least one cutting bushing (23) with a hollow paper drill (19) interacting with the cutting bushing in order to displace the paper scrap in the paper drill.