Conveyer device and toner cartridge equipped with conveyer device
US5812916A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Jun 23, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0833
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A conveyer device includes a container containing a toner therein and having a bottom wall and two side walls, a toner discharge port formed in the bottom wall, and a conveyance mechanism for conveying the toner in the container toward the discharge port. The conveyance mechanism includes a rotary shaft that is supported across both side walls to rotate and is positioned to pass above the discharge port, and a pair of spiral vanes formed on the rotary shaft. The vanes have their spiral directions opposite to each other. The discharge port has a first side edge and a second side edge opposed to each other at a distance in the axial direction of the rotary shaft. One of the spiral vanes extends from the first side edge toward the second side edge of the discharge port, above the toner discharge port. The other spiral vane extends from the second side edge toward the first side edge of the discharge port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.