Pressing device for three-knife trimmers for trimming books or unbound books

摘要

The invention relates to a pressing device for three-knife trimmers for trimming books or unbound books having a mechanical drive for lowering the die down to the stack of books or unbound books and having a spring, which is articulated via levers, for exerting the pressure in such a way that the spring exerting the pressure is composed of a spring assembly 5 which is arranged about an axis of rotation 20. <IMAGE>