公开(公告)号：US5151077A

公开(公告)日：1992-09-29

申请号：US738343

申请日：1991-07-31

申请人： William R. Cole, Jr. ,  Charles H. Sanborn, III ,  J. Dwight Clanton

发明人： William R. Cole, Jr. ,  Charles H. Sanborn, III ,  J. Dwight Clanton

IPC分类号： B26F1/20 ,  B26F1/22 ,  B26F1/24

CPC分类号： B26F1/20 ,  B26F1/22 ,  B26F1/24

摘要： Apparatus for perforating paper including a roll for holding a supply of paper to be perforated, and a roll for taking up paper from the supply roll. The apparatus moves the paper in a forward direction along a reach extending between the supply roll and the take-up roll at a selected speed so that a perforating roller between the supply roll and the take-up roll can perforate the paper in the reach from edge to edge. The perforating roller is rotated so that its teeth travel in the same direction as the paper at the location of engagement with the paper, but the perforating roller is rotated at a rate such that the speed of the teeth is less than the speed of the paper in the forward direction along the reach. Therefore, the paper moves forward relative the teeth after penetration of the paper so that the teeth form elongate openings extending rearwardly of their points of penetration, tearing away flaps of the paper to form the openings, which flaps remain connected to the paper at the rearward edge of the openings.

摘要翻译： 用于穿孔纸的装置，包括用于保持要穿孔的纸张供应的卷筒，以及用于从供应卷卷取纸张的卷。 该装置沿着向前方向移动纸张，其沿着在供给辊和卷取辊之间延伸的范围以选定的速度移动，使得供给辊和卷取辊之间的穿孔辊能够使纸张在距离 边缘到边缘 打孔辊旋转，使得其齿在与纸张接合的位置沿与纸张相同的方向行进，但是穿孔辊以使得齿的速度小于纸张速度的速度旋转 沿着方向前进。 因此，纸张在穿过纸张之后相对于牙齿向前移动，使得齿形成从其穿透点向后延伸的细长开口，撕开纸张的折片以形成开口，这些襟翼在后方保持连接到纸张 边缘的开口。