Stack height control remote from feedhead
US5653434A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1996 |
| Grant date | Aug 5, 1997 |
| Priority date | — |
| Expiry date | Jan 11, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00729
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A stack height control assembly that is remote from the feedhead. A floating coupler and sensor flag arrangement is mounted so that it is engaged with a paper supply drawer as the drawer is moved into an operative position. The feedhead acts as the stack height sensor and through a mechanical engagement with the sensor, which is removed and remote from the supply drawer, signals as the stack is depleted and the elevator mechanism should raise the stack. This control scheme removes complex electrical connectors from the drawer assembly and allows a wide range of substrates to be fed from the paper supply drawer. By allowing the sensor/coupler arrangement to float so as to align with the drawer, the need for extremely tight manufacturing and assembly tolerances with respect to the drawer/sensor arrangement is also obviated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.