Transmission/coupling device and image forming apparatus having same
US5669046A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1996 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Apr 26, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0119
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
To provide a transmission/coupling device simple in structure and capable of carrying out uniform velocity transmission and quick coupling/decoupling of shafts. A shaft 101 of a photo-sensitive drum 23 has a taper section 103 and a first coupling member 105, mounted on the shaft 101, having a projection 107. An output shaft 111 of a drive motor 67 has a second coupling member 113, mounted on the shaft 111, having a cylindrical bore 115 and a projection 119. When the shafts 101 and 111 are coupled to each other, the taper section 103 is in line-contact with the cylindrical bore 115 to define an engagement circle, and the projections 107 and 119 are engaged with each other to define a power transmission point P which exists in a bisector plane A including the engagement circle, whereby uniform velocity transmission is realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.