US 11,774,903 B2
Developing cartridge including casing, and first lever pivotally movable about shaft thereof relative to casing
Shuhei Hatano, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Oct. 24, 2022, as Appl. No. 18/48,908.
Application 18/048,908 is a continuation of application No. 17/569,866, filed on Jan. 6, 2022, granted, now 11,513,467.
Claims priority of application No. 2021-013612 (JP), filed on Jan. 29, 2021.
Prior Publication US 2023/0213887 A1, Jul. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 15/08 (2006.01); G03G 21/18 (2006.01); G03G 21/16 (2006.01)
CPC G03G 21/1821 (2013.01) [G03G 15/0872 (2013.01); G03G 21/1647 (2013.01); G03G 21/1676 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A developing cartridge comprising:
a casing configured to accommodate developing agent therein;
a developing roller positioned at one end in a direction of the casing;
a boss movable together with the casing; and
a first lever movable relative to the casing, the first lever including:
one end portion which is one end portion of the first lever, the one end portion functioning as a point of effort;
another end portion which is another end portion of the first lever, the another end portion functioning as a point of load;
a shaft positioned between the one end portion and the another end portion, the shaft functioning as a fulcrum; and
a first hole into which the boss is fitted,
wherein, according to the movement of the one end portion, the first lever is pivotally movable about the shaft,
wherein a dimension in the direction of the first hole is greater than a dimension in the direction of the boss, and
wherein, in a case where the casing moves in the direction relative to the first lever, the boss moves in the direction within the first hole.