Flat spine scorer and saddle stitcher

B - Operations – Transporting – 42 – C

Patent

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Details

B42C 19/04 (2006.01) B42B 2/02 (2006.01) B42B 9/00 (2006.01)

Patent

CA 2232326

An improved saddle stitching apparatus has dual scoring disks which cooperate with a scoring drum to create a flat spine on a cover. In one embodiment, a split ring is provided with two clamp arms, so that the ring can be releasably secured to the scoring drum. The ring includes a pair of annular grooves, with the distance between the grooves being of the desired spine width. The scoring disks are positioned adjacent the grooves so as to form the scoring lines. A folding assembly is also disclosed, which utilizes a flat carrying belt and a V-belt for purposes of folding the cover and moving the cover toward a stitching station. A gathering chain is also utilized to deliver the cover and signatures to the stitching station. The station includes a guide to assist in directing the preassembled covers and signatures toward a stitching head. Also provided is a block guide and an anvil for assistance in centering the spine beneath the stitching head. The stitching head delivers a saddle stitch in the center of the spine.

Une encarteuse-piqueuse améliorée a des disques de traçage doubles conjugués à un tambour de traçage pour créer un dos plat sur une couverture. Dans une application, un anneau fendu comporte deux bras de serrage, de sorte que l'anneau peut être fixé de façon amovible au tambour de traçage. L'anneau comporte une paire de rainures annulaires, la distance entre les rainures étant celle voulue pour la largeur du dos. Les disques de traçage sont placés près des rainures de manière à former les pliures. Un ensemble de pliage est également décrit, lequel utilise une courroie porteuse plate et une courroie en V pour plier la couverture et la déplacer vers un poste de piquage. Une chaîne ameneuse est également utilisée pour amener la couverture et les cahiers au poste de piquage. Le poste comprend un guide pour aider à diriger les couvertures et les cahiers préassemblés vers une tête de piquage. Il y a également un guide-bloc et une enclume pour faciliter le centrage du dos sous la tête de piquage. La tête de piquage exécute une piqûre à cheval au centre du dos.

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