Patent ID: 8191882
Filing Date: 2012-06-05
Classification: B65H

Abstract:
1. A spine formation device comprising: a sheet conveyer that conveys a bundle of folded sheets with a folded portion of the bundle of folded sheets forming a front end portion of the bundle of folded sheets; a pressing unit disposed downstream from the sheet conveyer in a sheet conveyance direction in which the sheet conveyer conveys the bundle of folded sheets, the pressing unit including a spine formation member disposed downstream from the pressing unit in the sheet conveyance direction at a predetermined distance from the pressing unit, the spine formation member including a contact surface against which the folded portion of the bundle of folded sheets is pressed with a predetermined spine-forming load to form a spine of the bundle of folded sheets with the second pressing member in conjunction with the first pressing member moving in the pressing direction wherein each of the first pressing member and the second pressing member comprises an oblique contact surface oblique to the pressing direction of the first pressing member, and the first pressing member and the second pressing member are in sliding contact with each other at the oblique contact surface of the first pressing member.