Device for depositing sheets
US5480136A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | May 9, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2553/41
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In the case of a device for depositing sheets on a stack table having stack abutments, comprises a conveying system which includes a plurality of endless conveyor belts arranged in parallelism and mechanism to drive the conveyor belts at the same speed to convey the sheets separately in spaced relation to each other on an upper surface thereof, it is possible to ensure more gentle handling of the sheets and more reliable and troublefree operation together with operation at a higher speed if the device comprises a perforated belt system which overlaps the one end of the conveyor belt system and comprises a plurality of parallel endless perforated belts adapted to be driven by a motor at an adjustable speed, such perforated belt system extending over the stack table, a plurality of suction air ducts, which are respectively arranged behind each lower run of such perforated belt and are solely open toward the perforated belt, a source of vacuum which is connected with the ends of the vacuum ducts nearest to the conveyor belt system and is adapted to supply vacuum reducing the air pressure in the suction air ducts, and a motor control sensor adapted to respond to the leading edge of a s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.