US 12,282,270 B2
Developer cartridge provided with gear having engagement portions
Keita Shimizu, Nagoya (JP); Takashi Shimizu, Nagoya (JP); Hideshi Nishiyama, Owariasahi (JP); Naoya Kamimura, Ichinomiya (JP); and Tomonori Watanabe, Ichinomiya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Jan. 27, 2023, as Appl. No. 18/160,771.
Application 18/160,771 is a continuation of application No. 17/089,923, filed on Nov. 5, 2020, granted, now 11,579,543.
Application 17/089,923 is a continuation of application No. 16/517,901, filed on Jul. 22, 2019, granted, now 10,983,456, issued on Apr. 20, 2021.
Application 16/517,901 is a continuation of application No. 15/915,294, filed on Mar. 8, 2018, granted, now 10,365,582, issued on Jul. 30, 2019.
Application 15/915,294 is a continuation of application No. 15/407,857, filed on Jan. 17, 2017, granted, now 9,952,535, issued on Apr. 24, 2018.
Application 15/407,857 is a continuation of application No. PCT/JP2015/080812, filed on Oct. 30, 2015.
Claims priority of application No. 2015-197202 (JP), filed on Oct. 2, 2015.
Prior Publication US 2023/0176499 A1, Jun. 8, 2023
Int. Cl. G03G 15/08 (2006.01); G03G 21/16 (2006.01); G03G 21/18 (2006.01); F16H 27/04 (2006.01)
CPC G03G 15/0865 (2013.01) [G03G 15/0806 (2013.01); G03G 15/0863 (2013.01); G03G 15/0891 (2013.01); G03G 15/0896 (2013.01); G03G 21/1647 (2013.01); G03G 21/186 (2013.01); F16H 27/04 (2013.01); G03G 2221/1657 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A developing cartridge comprising:
a developing roller rotatable about a first axis extending in a first direction;
a housing configured to accommodate developer therein;
a coupling rotatable about a second axis extending in the first direction and positioned at one side of the housing in the first direction;
a gear rotatable about a third axis extending in the first direction from a first rotational position to a second rotational position, from the second rotational position to a third rotational position, and from the third rotational position to a fourth rotational position, the gear being rotatable in accordance with a rotation of the coupling, the gear being positioned at the one side of the housing in the first direction; and
a protrusion movable in accordance with a rotation of the gear,
wherein the protrusion moves at a first speed in a case where the gear rotates from the first rotational position to the second rotational position,
wherein the protrusion moves at a second speed in a case where the gear rotates from the third rotational position to the fourth rotational position, and
wherein the second speed is different from the first speed.