| 摘要 |
A top case 311 and a bottom case 312 are engaged with each other by a latching portion 78 provided in a semi-circular groove 38 of a tape cassette 30. A contact portion 86 is provided in an arm front surface 35 in the vicinity of an exit 341. A top contact portion 86A and a bottom contact portion 86B included in the contact portion 86 contact each other such that they can contact and separate from each other. When a vertical force is applied to an arm portion 34, the top contact portion 86A and the bottom contact portion 86B are separated from each other, while the engagement between the top case 311 and the bottom case 312 is maintained by the latching portion 78. Thus, the top contact portion 86A and the bottom contact portion 86B can return to a normal contact state.
|
