Folding apparatus for narrow paper
US5366434A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1992 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Nov 6, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H45/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A zig-zag folding apparatus which includes a swing chute movable in a forward and rearward direction to transmit narrow sheet material between spaced, forward and rearward folding stations. A sheet folding device is located at each of the folding stations which includes a chain carrying a series of paddles, and a drive train which rotates the chain and paddles with respect to the folding station. In the course of moving in a forward and rearward direction, the swing chute transmits the narrow sheet material into contact with beaters or knock-down fingers located at each folding station which direct the sheet into a folding position where the paddles carried by the chain operate to fold or crease the sheet material along its perforations and thus form a stack of zig-zag folded sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.