Patent ID: 8235639
Filing Date: 2012-08-07
Classification: B42C,B65H

Abstract:
1. A method for producing an adhesive-bound book block from gathered signatures, each signature having a spine, the method comprising: supplying a non-bound book block composed of gathered signatures which are respectively positioned on their spines to an opened conveying clamp in a first conveying section of a perfect binder, the non-bound book block having flat outer surfaces; subsequently closing the conveying clamp and holding the non-bound book block by the closed conveying clamp along the flat outer surfaces of the non-bound book block; releasing the non-bound book block from the conveying clamp in a second conveying section and aligning and guiding the gathered signatures of the non-bound book block in the second conveying section; and after the gathered signatures of the non-bound book block are aligned and guided during the releasing step, and prior to leaving the second conveying section, clamping the non-bound book block along the flat outer surfaces by closing the conveying clamp so that the non-bound book block can be transported to a further processing location, wherein prior to the releasing step, the non-bound book block is held by holding elements with a holding force distributed over a partial area of the flat outer surface of the non-bound book block, wherein the clamping step includes clamping the non-bound book block on the flat outer surfaces with a clamping force necessary for further processing, and wherein the holding force applied to the flat outer surfaces during the closing and holding step is lower than the clamping force applied in the clamping step.