Shaft coupling, and function unit drive device for an image forming device comprising the same
US7603059B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2006 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Mar 9, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7013
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Inner circumference projections of a driven coupling are engaged with inner circumference recesses of a drive coupling. Outer circumference projections of the driven coupling are engaged with outer circumference recesses of the drive coupling. A chamfered portion formed at each tip of the rotational leading-side side surface of the inner circumference projections is capable of contact with the leading-side side surface of each inner circumference recess. A rotational trailing-side circumferential end face of each outer circumference projection and a rotational trailing-side circumferential end face of each outer circumference recess are in surface-to-surface contact with each other. As a result, the drive coupling and the driven coupling can rotate integrally without rattling in the rotational direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.