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Developing cartridge and electrophotographic image forming apparatus

  • US 10,642,216 B2
  • Filed: 05/04/2018
  • Issued: 05/05/2020
  • Est. Priority Date: 06/04/2012
  • Status: Active Grant
First Claim
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1. A developing cartridge comprising:

  • a casing including a shaft;

    a developing roller provided in the casing, the developing roller being configured to rotate and carry developer;

    a coupling member configured to receive a rotational force for rotating the developing roller, the coupling member being movable between a first position in which a rotational axis of the coupling member is parallel to a rotational axis of the developing roller and a second position in which the rotational axis of the coupling member is inclined relative to the rotational axis of the developing roller; and

    a rotatable lever provided adjacent to the coupling member, the rotatable lever including (i) a contact portion contactable to the coupling member and (ii) a bearing portion rotatably supported by the shaft, the rotatable lever being rotatable between a contact position in which the contact portion contacts the coupling member and a spaced position in which the contact portion is spaced from the coupling member, with the contact portion being capable of moving the coupling member from the first position to the second position by a rotation of the rotatable lever,wherein a rotational axis of the rotatable lever is parallel to the rotational axis of the developing roller,wherein the rotatable lever includes a plate portion rotatable integrally with the contract portion, andwherein the plate portion is disposed at a more outward position than the contact portion with respect to a direction of the rotational axis of the rotatable lever.

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