| 摘要 |
PROBLEM TO BE SOLVED: To cope even with a paper bundle of a large number of paper sizes such as a fixed form size and an unfixed form size, when bookbinding by adhering cover paper to the paper bundle equivalent to one volume.SOLUTION: A bookbinding device 30 is provided so that cover paper P2 is adhered to a paper bundle PS of bundling a plurality of paper P by one volume quantity by using a melted hot melt adhesive G, and when executing wrap-binding bookbinding, an adhesive coating roller 42 rotatably stored in an adhesive storage container 41 of an adhesive coating part 40, is formed with a cylindrical surface 42c along the rotary shaft direction, and blade pairs 42d for removing the hot melt adhesive G coated in a melting state on both end part PSa1, PSa3 side in the width direction of a back face PSa of the paper bundle PS, is respectively formed toward the inside from both end parts of a cylindrical surface 42c on both end part sides in the parallel direction to rotary shafts 42a and 42b of the cylindrical surface 42c, and is formed by projecting by a predetermined quantity from the cylindrical surface 42c.SELECTED DRAWING: Figure 3 |
