Patent ID: 9511964
Filing Date: 2016-12-06
CPC Classification: B31F,B42B,B42C,B65H

Claim Text:
1. A sheet processing apparatus which vertically conveys a sheet which has a crease at a center of the sheet and which is in a vertical state in which the crease is on a top and a fore edge of the sheet is on a bottom, the apparatus comprising: a first holder which clamps and holds the sheet; a second holder which comprises clamp members which clamp the sheet to corrugate the sheet when the second holder holds the sheet; and a control unit which controls operation of the first and second holders, wherein the control unit controls the first and second holders such that the second holder holds the sheet while the first holder holds a first part of the sheet, and then, while the second holder holds the sheet, the first holder releases the first part of the sheet, moves along the sheet and holds a second part of the sheet, wherein the second holder further comprises a main face on which the clamp members are provided, and wherein the clamp members are rotatable between (i) a first position in which the clamp members are on the same plane as the main face, and (ii) a second position in which the clamp members stand up on the main face to oppose each other.