SHEET FOLDING DEVICE

PROBLEM TO BE SOLVED: To easily and smoothly fold a continuous sheet concerning the manufacture of sealed postcards or the like. SOLUTION: A sheet push-in member 11 coming in pressure contact with the continuous sheet 2 from one side face side to form a recess 2b extended along a vertical direction, comprises a supporting shaft 15 having an axis orthogonal to the feed direction of the continuous sheet 2, and a push-in roller 16 rotatably supported to the supporting shaft 15 and having a projecting peripheral edge inclined to have the outline of a large diameter circle at the thickness direction center part and to have the outline of circles gradually reduced in diameter on both end sides in the thickness direction. The push-in roller 16 applies bending force to the continuous sheet 2 simultaneously with rotation. COPYRIGHT: (C)2006,JPO&NCIPI