| 摘要 |
PROBLEM TO BE SOLVED: To prevent the gear tooth shape of a gear member from being adversely affected, in a driving apparatus having a structure in which the gear member is press-fitted to a rotary member, even when the press-fitting is performed.SOLUTION: A driving apparatus includes the output shaft 12 of a motor and a gear member 2 inserted into the output shaft 12. The gear member 2 includes an inner peripheral face 22 forming a through-hole inserted into the output shaft 12, and an outer peripheral face 23 in which gear teeth 21 are formed. The outer peripheral face 23 includes a toothed region 23A in which the gear teeth 21 are formed, and a non-toothed region 23B in which gear teeth are not formed. The inner peripheral face 22 includes a first region R1 corresponding to the toothed region 23A, and a second region R2 corresponding to the non-toothed region 23B. The second region R2 includes an inner diameter press-fitted into an output shaft 12, and the first region R1 includes an inner diameter closely inserted into the output shaft 12 in a non-press-fitted state, respectively. |
