| 摘要 |
<p>A playback video disc unit in which the disc is inserted and removed without being handled by the user. The disc is stored in a protective jacket, the housing of the playback unit is made with an input slot of suitable size for insertion and removal of the disc. The housing contains a gear wheel, a control arm, which can move the reproduction unit to two positions. The movement to the second position is via elements driven by the gear system. The control arm is returned to the original position by elements mounted in the reproduction unit. The direction of rotation of the gear wheels can be reversed.</p> |
