US Patent Application 18448418. DEVELOPING CARTRIDGE INCLUDING CASING, AND FIRST LEVER PIVOTALLY MOVABLE ABOUT SHAFT THEREOF RELATIVE TO CASING simplified abstract

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DEVELOPING CARTRIDGE INCLUDING CASING, AND FIRST LEVER PIVOTALLY MOVABLE ABOUT SHAFT THEREOF RELATIVE TO CASING

Organization Name

BROTHER KOGYO KABUSHIKI KAISHA

Inventor(s)

Shuhei Hatano of Nagoya (JP)

DEVELOPING CARTRIDGE INCLUDING CASING, AND FIRST LEVER PIVOTALLY MOVABLE ABOUT SHAFT THEREOF RELATIVE TO CASING - A simplified explanation of the abstract

This abstract first appeared for US patent application 18448418 titled 'DEVELOPING CARTRIDGE INCLUDING CASING, AND FIRST LEVER PIVOTALLY MOVABLE ABOUT SHAFT THEREOF RELATIVE TO CASING

Simplified Explanation

The patent application describes a developing cartridge used in printing devices.

  • The cartridge includes a casing, a developing roller, a movable boss, and a movable lever.
  • The lever has two ends, one for applying force and the other for bearing load, with a shaft as a fulcrum.
  • The boss is fitted into a hole in the lever, allowing the lever to pivot when force is applied.
  • The hole in the lever is larger in a direction perpendicular to the boss, allowing the boss to move within the hole when the casing moves relative to the lever.


Original Abstract Submitted

A developing cartridge includes: a casing; a developing roller extending in a first direction; a boss movable with the casing; and a first lever movable relative to the casing. The first lever includes: one end portion functioning as a point of effort; another end portion functioning as a point of load; a shaft functions as a fulcrum and positioned between the one end portion and the another end portion; and a first hole into which the boss is fitted. By the one end portion receiving a driving force, the first lever is pivotally movable about the shaft. A dimension of the first hole in a second direction crossing the first direction is greater than a dimension in the second direction of the boss. In a case where the casing moves in the second direction relative to the first lever, the boss moves in the second direction within the first hole.

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