Image forming apparatus
US9535365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2015 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Oct 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1657
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Provided is an image forming apparatus that forms an image on a recording material, the apparatus including: a first helical gear and a second helical gear that are engaged with each other; and a driving portion that applies a driving force to the first helical gear, wherein at least one of the first helical gear and the second helical gear is a helical gear in which torsional rigidity in a tooth width direction of one side end in a width direction of the gear is larger than torsional rigidity in a tooth width direction of the other side end, and wherein a twist direction of helical teeth and a rotational direction of the first helical gear due to the driving portion are set such that the other side end is engaged earlier than the one side end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.