US 12,169,385 B2
Developing cartridge including movable shaft, and cam provided on shaft and having surface inclined relative thereto
Yuwen Wang, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Mar. 27, 2023, as Appl. No. 18/190,295.
Claims priority of application No. 2022-061485 (JP), filed on Apr. 1, 2022.
Prior Publication US 2023/0315001 A1, Oct. 5, 2023
Int. Cl. G03G 21/18 (2006.01); G03G 15/08 (2006.01); G03G 21/16 (2006.01)
CPC G03G 21/1647 (2013.01) [G03G 15/087 (2013.01); G03G 21/1676 (2013.01); G03G 21/1821 (2013.01); G03G 21/1864 (2013.01); G03G 2221/1657 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A developing cartridge comprising:
a housing configured to accommodate developer therein, the housing having a first outer surface, the first outer surface being positioned at one end portion of the housing in a first direction;
a developing roller rotatable about a first axis extending in the first direction;
a shaft along a second axis extending in the first direction, the shaft being movable in the first direction relative to both the housing and the developing roller;
a first cam positioned at one end portion of the shaft in the first direction, the first cam being movable in the first direction together with the shaft, the first cam being formed integrally with the shaft, the first cam having a first inclined surface; and
an elastic member configured to be expanded or compressed, the entire elastic member being positioned farther from the first inclined surface in a radial direction of the shaft than the shaft is from the first inclined surface in the radial direction, the elastic member being positioned between the first outer surface and the first cam in the first direction.