Gear transmission device, process unit including the gear transmission device and image forming apparatus including same

摘要

A gear transmission device includes a drive rotator and a driven external gear. The drive rotator includes a drive internal gear to rotate about a rotary shaft. The driven external gear meshes with the drive internal gear to transmit a drive force to a drive target.

主权项

1. A gear transmission device
a drive source having a rotary shaft with a gear;
a drive rotator to transmit a drive force from the drive source to a first driven rotator, the drive rotator including an internal gear on an inner circumferential surface of the drive rotator; anda driven external gear to transmit the drive force from the drive rotator to the first driven rotator,the gear directly meshing with the internal gear,the driven external gear meshing with the internal gear.