Image forming unit having biasing part that biases developing unit toward drum unit and image forming device including same
AssigneeOki Data Corporation
InventorShinichi Otani
Life of this patent
Estimating the term…
Abstract
An image forming unit includes a first rotating body having a first gear; a first unit that rotatably supports the first rotating body; a second rotating body having a second gear; a second unit that rotatably supports the second rotating body; and a biasing part that biases the second unit toward the first unit, wherein a drive force is generated by transmitting rotation from the first gear to the second gear in order to transmit the rotation from the first rotating body to the second rotating body, and the biasing part biases the second unit in a biasing direction substantially perpendicular to a driving direction of the drive force.
Claims19
An image forming unit comprising:
- a first rotating body having a first gear;
- a first unit that rotatably supports the first rotating body;
- a second rotating body having a second gear;
- a second unit that rotatably supports the second rotating body;
- and
- a biasing part that generates a bias force and that biases the second unit toward the first unit at a point of contact at which the first gear and the second gear contact each other, wherein
- a drive force is generated by transmitting rotation from the first gear to the second gear in order to transmit the rotation from the first rotating body to the second rotating body,
- the biasing part biases the second unit in a biasing direction substantially perpendicular to a driving direction of the drive force,
- the biasing part is positioned at a downstream side of the point of contact in the driving direction of the drive force,
- a mesh pressure angle is an angle of pressure based on meshing of the first and second gears, and
- the biasing direction and the mesh pressure angle are substantially parallel with each other.
An image forming unit comprising:
- a first rotating body having a first gear;
- a first unit that rotatably supports the first rotating body;
- a second rotating body having a second gear;
- a second unit that rotatably supports the second rotating body;
- and
- a biasing part that generates a bias force and that biases the second unit toward the first unit at a point of contact at which the first gear and the second gear contact each other, wherein
- a drive force is generated by transmitting rotation from the first gear to the second gear in order to transmit the rotation from the first rotating body to the second rotating body,
- the biasing part biases the second unit in a biasing direction substantially perpendicular to a driving direction of the drive force,
- the biasing part is positioned at a downstream side of the point of contact in the driving direction of the drive force, and
- an angle D between the biasing direction and the driving direction is in a range between 85° and 95°.
An image forming unit comprising:
- a first rotating body having a first gear;
- a first unit that rotatably supports the first rotating body;
- a second rotating body having a second gear;
- a second unit that rotatably supports the second rotating body;
- and
- a biasing part that generates a bias force and that biases the second unit toward the first unit at a point of contact at which the first gear and the second gear contact each other, wherein
- a drive force is generated by transmitting rotation from the first gear to the second gear in order to transmit the rotation from the first rotating body to the second rotating body,
- the biasing part biases the second unit in a biasing direction substantially perpendicular to a driving direction of the drive force,
- the biasing part is positioned at a downstream side of the point of contact in the driving direction of the drive force, and
- the biasing part is formed in the second unit.
Dependencies are inferred from the claim text.