Abstract: For effective achievement of an increase in productivity, prolongation of the life cycle of a consumable part, a decrease in the running cost, a lighter burden on the operator's work, and a reduction in spending on plants and equipment, a sheet transport apparatus comprises: a folding cylinder (11) for transporting sheets one by one or as a stack of a plurality of the sheets; a jaw cylinder (12) or a reduction cylinder (13) for holding the sheets by alternate ones of holding means and transporting the sheets when the sheets are transported as the stack of the plurality of sheets; an upper transfer cylinder (14) opposing the jaw cylinder or the reduction cylinder; a lower transfer cylinder (15) opposing the jaw cylinder or the reduction cylinder; and switching means for transporting the sheets from the jaw cylinder or the reduction cylinder to the upper transfer cylinder and the lower transfer cylinder, while allocating the sheets to the upper transfer cylinder and the lower transfer cylinder, when the sheets

Abstract: For effective achievement of an increase in productivity, prolongation of the life cycle of a consumable part, a decrease in the running cost, a lighter burden on the operator's work, and a reduction in spending on plants and equipment, a sheet transport apparatus comprises: a folding cylinder (11) for transporting sheets one by one or as a stack of a plurality of the sheets; a jaw cylinder (12) or a reduction cylinder (13) for holding the sheets by alternate ones of holding means and transporting the sheets when the sheets are transported as the stack of the plurality of sheets; an upper transfer cylinder (14) opposing the jaw cylinder or the reduction cylinder; a lower transfer cylinder (15) opposing the jaw cylinder or the reduction cylinder; and switching means for transporting the sheets from the jaw cylinder or the reduction cylinder to the upper transfer cylinder and the lower transfer cylinder, while allocating the sheets to the upper transfer cylinder and the lower transfer cylinder, when the sheets

Abstract: In a cylinder of a folder in which a web being transported is cut by a cut-off knife, and a sheet formed by cutting performed by the cut-off knife is folded to form a signature, at least a part of the surface of the cylinder, which the sheet or the signature contacts, is a rough surface.

Abstract: An improved chopper device for use in a folder for folding a signature which has been subjected to parallel folding at a parallel folding device and then conveyed by means of a conveying belt, in a direction perpendicular to the parallel folding direction. The chopper device is provided with an elongated opening having a mouthpiece below the conveying path therefor. An upwardly and downwardly movable chopper blade lowers when the signature is stopper at a predetermined position and forces the signature into the opening. A pair of rollers is provided below the opening in order to grip the signature forced into the opening by the chopper blade nd deliver it to a delivery conveyor. Brushes are provided on both sides of the opening thereabove so as to slidably hold both sides of the signature when the signature is lowered by the rollers through the opening.