Configuration for stopping movement of a status specifying element for a developing cartridge including gear and rotating portion

Patent metadata

Field	Value
Publication number	US-10054875-B2
Application number	US-201615275613-A
Country	US
Kind code	B2
Filing date	Sep 26, 2016
Priority date	Mar 24, 2016
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

A developing cartridge includes a first gear, a second gear, and a protrusion. The first gear is rotatable about a first axis extending in a predetermined direction. The second gear is configured to engage with the first gear and rotatable about a second axis extending in the predetermined direction. The protrusion extends in the predetermined direction and circularly movable together with rotation of the second gear. The first gear is movable in a direction away from the second gear from a first position to engage with the second gear to a second position to disengage from the second gear.

First claim

What is claimed is:

1. A developing cartridge comprising:
a housing configured to accommodate developing agent;
a first gear rotatable about a first axis extending in a predetermined direction;
a second gear configured to engage with the first gear and rotatable about a second axis extending in the predetermined direction;
an agitator including an agitator shaft extending in the predetermined direction, the agitator configured to agitate the developing agent, the agitator shaft configured to directly contact at least a portion of the first gear and to be rotatable with the first gear; and
a protrusion extending in the predetermined direction and circularly movable together with rotation of the second gear,
wherein the first gear is movable in a direction away from the second gear from a first position in which the first gear engages with the second gear to a second position in which the first gear disengages from the second gear.

2. The developing cartridge according to claim 1 , wherein the first gear is movable from the first position to the second position in the predetermined direction.

3. The developing cartridge according to claim 1 , further comprising a stopper configured to fix the first gear at the second position.

4. The developing cartridge according to claim 1 , further comprising:
a gear cover covering at least a portion of the first gear and the second gear, the gear cover having an opening,
wherein the first gear and the second gear are positioned between the gear cover and the housing in the predetermined direction, and
wherein, when the first gear rotates from the first position to the second position, the protrusion passes through the opening in a state where the protrusion is exposed via the opening.

5. The developing cartridge according to claim 1 , wherein the agitator shaft is configured to rotate with the first gear at all times that the first gear rotates.

Assignees

• Brother Ind Ltd

Inventors

• Itabashi Nao
• Shinoya Shota

Classifications

• G03G15/0889 Primary

  for agitation or stirring · CPC title

• G03G21/1647 Primary

  Mechanical connection means · CPC title

• F16H25/16

  for interconverting rotary motion and oscillating motion · CPC title

• F16H1/20

  involving more than two intermeshing members · CPC title

• G03G2221/1657

  transmitting mechanical drive power · CPC title