Device for the sequential introduction of sheets in a shaping or forming machine
US5026040A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1990 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Apr 24, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H3/12
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device for sequentially introducing sheets placed in a stack into the nips of a pair of introduction rollers comprising at least one linear member having ends secured to a control pulley or roller and passing around a return pulley or roller which is adjacent the nips of the introduction rollers. A plurality of cams mounted on rotating shafts for engaging a run of the linear member to shift it from a retracted position to a position for engaging a bottom sheet in a stack disposed above the linear member, a vacuum chamber disposed along each linear member for holding the sheet on the members as they engage the sheet and carry it toward the nips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.