Method and device for feeding, aligning and holding a sheet on a sheet-processing machine
US5287809A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 1992 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | May 4, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H9/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of feeding, aligning and holding a sheet on a cylinder of a sheet-processing machine, which includes, prior to an occurrence of a gripping operation on a sheet at a cylinder of a sheet-processing machine, forcing a leading edge of the sheet into a contact position wherein the leading edge of the sheet is pressed against moving front lays which are guided over the cylinder, opening sheet grippers carried by the cylinder, inserting the leading edge of the sheet which is in the contact position into the sheet grippers, and maintaining the leading edge of the sheet in the contact position with the front lays until just before closing the sheet grippers; and a device for performing the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.