Drive and image forming apparatus
US8768217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2012 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Dec 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1657
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A drive includes a driving shaft that includes a distal end portion having a screw hole at a distal end and being inserted into a hollow portion from a first end of a driving roller in a rotation-axis direction, and that transmits a rotational driving force to the driving roller through a fit portion; a spring washer arranged at a second end of the driving roller opposite to the first end in the rotation-axis direction; and a screw rod that has an external thread which is screwed into the screw hole, that is inserted into the spring washer and inserted into the hollow portion from the second end, and that pinches the driving roller between the screw rod and the fit portion of the driving shaft in the rotation-axis direction through the spring washer when the external thread is screwed into the screw hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.