Developer accommodating device with screw including screw blade as rotator, developing device, process cartridge, and image forming apparatus
US11835887B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2022 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | May 24, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1648
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer accommodating device includes a rotator including a rotation shaft, a collar that rotates together with the rotation shaft, and a bearing rotatably supporting the rotation shaft via the collar. The rotation shaft includes a resin material, and collar including a metal material. The collar includes a collar main portion to be in sliding contact with the bearing, and a flange portion closer to a center of the rotator in an axial direction of the rotator than the collar main portion. The collar main portion has a first outer diameter, and the flange portion has a second outer diameter greater than the first outer diameter of the collar main portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.