Patent · US Expired

Sheet stacker

US5366217A · kind A · utility

18Cited by
9References
5Claims
0Family size

Assignees

Inventors

Key dates

Filing dateDec 5, 1991
Grant dateNov 22, 1994
Priority date
Expiry dateDec 5, 2011

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65H2701/1762
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

With a sheet stacker to stack sheets cut by a sheet cutter into stacking station, sheets cut by a sheet cutter are transferred by a conveyor with a fixed sheet interval, a clamping device clamps a base position near the tail end of the sheet during transfer of the sheet, and the sheet transfer speed is reduced to an optimum speed needed for stacking the sheet into stacking station orderly. The clamping device has a rotating device having free rolls at its end and a slowdown roll, and clamps the sheet once during each revolution of the rotating device, by contact of the free rolls with the slowdown rolls.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.