Friction load insensitive mounting for blade
US5412461A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1994 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | May 5, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/0029
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus in which a photoreceptor cleaning blade is mounted to an extension of the coupler link of a four bar linkage. A torsion spring is positioned at the pivot of the crank link to create the torque on the crank link. A weight or solenoid can also be used to create the torque on the crank link. This torque supplies the force to the mounted cleaning blade. The instantaneous center of rotation is a virtual pivot point which is located on the photoreceptor tangent plane. The linkage reaction forces and the blade friction load all pass through the virtual pivot point leaving the blade load a function of the torque on the crank link. In machines where the cleaning blade is located on a long span of a belt photoreceptor this offers the advantage of blade loading insensitivity to friction without trapping the photoreceptor inside pivot bearings,
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.