Patent ID: 9108821
Filing Date: 2015-08-18
Classification: B31F,B65H

Abstract:
1. A sheet folding apparatus comprising: a first conveying path in which a sheet is conveyed; a first sheet conveying unit that holds the sheet conveyed in the first conveying path to apply conveying force to the sheet; a second sheet conveying unit that is disposed downstream of the first sheet conveying unit in a sheet conveying direction, and holds the sheet to apply conveying force to the sheet; a folded part forming unit that forms a folded part on a sheet by nipping a turned-back portion formed on a part of the sheet between the first sheet conveying unit and the second sheet conveying unit; a second conveying path that bifurcates from the first conveying path and in which a sheet on which a folded part is formed by the folded part forming unit is conveyed; and a pushing member that is movable between a pushing position at which the pushing member pushes the turned-back portion toward the folded part forming unit and a retracted position at which the pushing member is retracted from the pushing position, wherein the pushing member also serves as a changing unit that changes a direction of a leading end of the sheet that is conveyed in the first conveying path from the first sheet conveying unit toward the second sheet conveying unit into a direction toward the second conveying path, and wherein, when the folded part forming unit forms a folded part on the sheet, the sheet folding apparatus determines whether to move the pushing member from the retracted position to the pushing position depending on a type of the sheet.