| 摘要 |
<p>PURPOSE:To reduce the number of parts used by making a hole in either a mobile desk or a loading ring and moving the mobile desk using the elasticity of a flexible material. CONSTITUTION:When a mobile desk 6 reaches a guide 10, a taper 12 of the mobile desk 6 contacts a stopper 11. When further pressed by a flexible material the stopper 11 pushes up the taper 12 and hence the mobile desk 6, and conse quently projections 13 and 14 of the mobile desk 6 pressed to a reference plane 16. Therefore, the mobile desk is given a force in the directions of the circumfer ence and the spindle of a rotary drum. Consequently, a roller 4 and a guide pin 5 fixed to the mobile desk are stopped at the prescribed position at the prescribed angle with reference to the rotary drum and a magnetic tape is wheeled precisely with reference to the rotary drum.</p> |
