Patent ID: 8317181
Filing Date: 2012-11-27
Classification: B65H

Abstract:
1. A spine formation device for forming a spine of a bundle of folded sheets, the spine formation device comprising: a sheet conveyer that conveys the bundle of folded sheets with a folded portion of the bundle forming a front end portion of the bundle; a clamping unit disposed downstream from the sheet conveyer in a sheet conveyance direction in which the bundle of folded sheets is transported, the clamping unit movable in a direction of thickness of the bundle to clamp the bundle with the folded portion of the bundle projecting from a downstream end of the clamping unit in the sheet conveyance direction; a spine forming member disposed downstream from the clamping unit in the sheet conveyance direction to flatten the folded portion of the bundle into a square spine; and a controller operatively connected to the sheet conveyer as well as the clamping unit, wherein the controller causes the sheet conveyer to transport the bundle of folded sheets to a first position a predetermined distance downstream in the sheet conveyance direction from a second position at which the bundle is clamped by the clamping unit and to reverse the bundle from the first position to the second position before the clamping unit clamps the bundle.