Drive transmission unit and image forming apparatus incorporating same
AssigneeRicoh Company, Ltd.
InventorsMasahiro ISHIDA, Naoki MATSUDA
Life of this patent
Estimating the term…
Abstract
A drive transmission unit is described that includes a drive source, and a rotatable drive transmitting member to transmit a driving force from the drive source. The drive transmitting member includes a bottom part intersecting an axis of the drive transmitting member, a circular transmitting part extending from the bottom part in an axial direction of the drive transmitting member and including an internal toothed surface on an inner circumferential surface of the transmitting part to mesh with a first member, and a first projecting part and a second projecting part projecting in opposite directions from the bottom part along the axial direction of the drive transmitting member and having different diameters.
Claims11
A drive transmission unit comprising:
- a drive source;
- and
- a rotatable drive transmitting member to transmit a driving force from the drive source, the drive transmitting member comprising:
- a bottom part intersecting an axis of the drive transmitting member;
- a circular transmitting part extending from the bottom part in an axial direction of the drive transmitting member, the transmitting part comprising an internal toothed surface on an inner circumferential surface of the transmitting part to mesh with a first member;
- and
- a first projecting part and a second projecting part projecting in opposite directions from the bottom part along the axial direction of the drive transmitting member, the first projecting part and the second projecting part having different diameters.
An image forming apparatus comprising:
- an image forming device, comprising a photoconductor to form a toner image on the photoconductor;
- and
- a drive transmission unit, comprising:
- a drive source;
- and
- a rotatable drive transmitting member to transmit a driving force from the drive source, the drive transmitting member comprising:
- a bottom part intersecting an axis of the drive transmitting member;
- a circular transmitting part extending from the bottom part in an axial direction of the drive transmitting member, the transmitting part comprising an internal toothed surface on an inner circumferential surface of the transmitting part to mesh with a first member;
- and
- a first projecting part and a second projecting part projecting in opposite directions from the bottom part along the axial direction of the drive transmitting member, the first projecting part and the second projecting part having different diameters.
Dependencies are inferred from the claim text.