Drive transmitter and image forming apparatus incorporating the drive transmitter
AssigneeRicoh Company, Ltd.
InventorsNarumi Sugita, Masahiro Ishida, Shogo Sakamoto, Naoki Matsuda
Life of this patent
Estimating the term…
Abstract
A drive transmitter includes an internally toothed gear, a first support shaft to rotatably support the internally toothed gear without using a bearing, a drive source to apply a driving force to the internally toothed gear, a rotary body to which the driving force is transmitted via the internally toothed gear, and a grease retainer disposed on the first support shaft and to retain grease on at least one of a portion of the first support shaft facing the internally toothed gear and a portion of the internally toothed gear facing the first support shaft. An image forming apparatus includes the drive transmitter.
Claims16
A drive transmitter, comprising:
- an internally toothed gear formed by resin;
- a support shaft formed by metal and configured to rotatably support the internally toothed gear, the internally toothed gear being directly and rotatably supported by the support shaft;
- a drive source configured to apply a driving force to the internally toothed gear;
- a rotary body, to which the driving force is transmittable via the internally toothed gear;
- and
- a grease retainer mounted on the support shaft and disposed facing the internally toothed gear.
Dependencies are inferred from the claim text.