| 摘要 |
PROBLEM TO BE SOLVED: To provide an end member that uses a helical gear but can prevent the occurrence of a problem of positional displacement in a thrust direction and improve the degree of freedom in design.SOLUTION: An end member 20 is attached to an end of a columnar rotating body provided in an image forming apparatus, and includes a gear part 30 that has a gear formed on the outer periphery. The gear part includes at least one mixed gear part 32 in which a first gear shape and a second gear shape in a different shape from the first gear shape are mixed and arranged, and at least one of the first gear shape and second gear shape is a helical gear.SELECTED DRAWING: Figure 3 |
