Photosensitive drum driving head and driving mechanism of image forming apparatus
US8886087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2013 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Aug 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1657
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a photosensitive drum driving head, which comprises drum flange, drum shaft and boss, wherein the drum flange is disposed on the end portion of a photosensitive drum and connected with the photosensitive drum; the drum shaft is axially extended from the end portion of the drum flange; the boss is axially extended from the end face of the drum shaft and engaged with a recess in a driving head of image forming apparatus; three vertical convex teeth radially extended along the boss and engaged with power transmission portions are formed on side wall of the boss, perpendicular to the drum shaft, extended along an axial line of the photosensitive drum, and provided with mating surfaces formed by longitudinal cutting angles on end faces of the vertical convex teeth; at least one mating surface is engaged with an edge of a twisted bevel of the recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.