Patent ID: 8469347
Filing Date: 2013-06-25
Classification: B26D,B26F,B42C,B65H

Abstract:
1. A perforation apparatus, comprising: a perforation device which perforates a sheet with a punch to form a notch on an edge of the sheet; an aligning device comprising a pair of aligning members, wherein the aligning members are movable to align the sheet in a sheet width direction orthogonal to a sheet conveyance direction; a contact member which contacts with a trailing edge of the sheet, wherein the contact member is capable of being inserted into and retracted from a conveyance path of the sheet, and the contact member is disposed at an upstream side of the punch in the sheet conveyance direction; and a control section configured to control the perforation device, the aligning device, and the contact member, wherein the control section (i) controls the aligning device to perform an aligning operation to align the sheet in the sheet width direction while grasping the sheet with the aligning members, (ii) controls the aligning device to retract the aligning members from the sheet after the aligning operation is completed, (iii) subsequently controls the contact member to push the trailing edge of the sheet and convey the sheet to a predetermined position, and (iv) then controls the perforation device to perforate the sheet with the punch to form the notch on the edge of the sheet.