| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device for accurately positioning a rotating body to a frame, and to provide a drum unit and an image forming device. <P>SOLUTION: On an inner circumferential surface of a drum supporting hole 32 penetrating through right and left inner side plates 24 and 25, a first flat surface part (rear vertical straight line part 63) and a second flat surface part (lower horizontal straight line part 64) which extend in the direction different to each other are formed. Right and left bearing members 90 and 91 are externally fitted to flange members 81 of a photosensitive drum 5. The right and left bearing members 90 and 91 are internally fitted to the drum supporting hole 32, to support the photosensitive drum 5 to the drum supporting hole 32 so as to be rotated. Pressing members 96 and 108 provided in a position facing the inner circumferential surface 139 of the drum supporting hole 32 press the left and right flange members 81 toward between the first flat surface part and the second flat surface part. <P>COPYRIGHT: (C)2013,JPO&INPIT |
