Japan, July 14 -- CANON INC has got intellectual property rights for 'IMAGE FORMING APPARATUS.' Other related details are as follows:
Application Number: JP,2022-126125
Category (FI): G03G21/18,160,G03G21/16,180,G03G21/16,147
Stage: PROBLEM TO BE SOLVED: To stably transmit driving force from a drive unit to a rotor even while a shaft coupling with forces acting in the direction of moving away from each other rotates.SOLUTION: In an image forming apparatus including a detachable detachment unit including a rotor having a driven side shaft coupling, and a drive unit including a driving side shaft coupling to be engaged with the driven side shaft coupling to give driving force to the rotor through the driving side shaft coupling, the driven side shaft coupling has a spiral-shaped first reception surface, and a spiral-shaped second reception surface, the driving side shaft coupling has a spiral-shaped first transmission surface for coming into contact with the first reception surface to give driving force in a first rotation direction to the driven side shaft coupling, in rotating in the first rotation direction, and a spiral-shaped second transmission surface for coming into contact with the second reception surface to give driving force in a second rotation direction to the driven side shaft coupling in rotating in the second rotation direction being an opposite direction from the first rotation direction. The surface quality of the second transmission surface and the second reception surface is rougher than the surface quality of the first transmission surface and the first reception surface.SELECTED DRAWING: Figure 9 (Grant)
Filing Date: Aug. 8, 2022
Publication Date: Feb. 21, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
