procedure and device to open the folded, bound, or heftade flerbladade emnen

摘要

The folded printed product to be opened is moved with its open side leading towards a stationary separation element. The separation element contains a flat, tongue-like opening element attached to a shaft extending transversely with respect to the direction of movement of the printed product. The opening element is rotatable by means of this shaft. In its starting position the opening element is directed with its pointed end towards the arriving printed product. By means of this pointed end the opening element penetrates between the sheets of the printed product. Thereafter the shaft together with the opening element is rotated in a predetermined direction, for instance in the counterclockwise direction, while there is continued the feed movement of the printed product. Due to such rotation of the opening element the part of the printed product reposing thereon is raised from the other product part, so that the printed product is opened. During the course of the further movement of the printed product a stationary hold-open element moves between the opened parts of the printed product, to thereby prevent closing of the opened printed product. Further printed products can be stuffed into the printed product which is held in its open condition. As soon as the opened printed product has completely moved past the separation element, the opening element again is turned back or rotated into its starting position.