Developer conveying device, and developing device and image forming apparatus provided with same
US9008553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2013 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | May 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0802
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer conveying device includes a housing, a developer conveyance path and a conveying member. The developer conveyance path extends between the pair of wall portions of the housing. The conveying member conveys developer from one wall portion toward the other. The conveying member includes a spiral member, shaft portions, a rib member, a supporting member and a projecting portion. The spiral member is formed by connecting spiral pieces in a conveying direction of the developer and includes a hollow interior formed by the connected spiral pieces. The rib member extends in the conveying direction and bridges adjacent ones of the spiral pieces of the spiral member. The supporting member connects an end part of the rib member in the conveying direction and the shaft portion. The projecting portion projects from the end part of the rib member more toward the wall portion than the supporting member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.