Mixed thickness sheet separator and feeder
US3970298A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1975 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | Jun 5, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/1916
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet separating device for mechanically feeding single sheets from a magazine having a stack of intermixed sheets of different thicknesses. The apparatus includes a conveyor assembly having an endless belt provided with integral feed pads for successively contacting and transporting sheets from the stack. A feed limiting barrier directs movement of the sheets toward a pair of discharge rollers which rotate in a direction for advancing the movement of the sheets. A separator roller mounted in confronting, overlapping relationship with the discharge rollers rotates in a direction opposing forward movement of the sheets to prevent passage of more than one sheet between the separator and discharge rollers. The conveyor assembly is spring-biased and swingably displaceable with respect to the separator roller for variable clearance in order to accommodate sheets of different thicknesses. Additionally, the discharge rollers are urged into contact with idler rollers to automatically compensate for wear. A sheet limit stop spaces the sheets with regard to the belt and feed pads in order to relieve intersheet pressure and to minimize the adhesion between adjacent sheets during engagement …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.