| 摘要 |
<p>PURPOSE:To separate an idler in a non-transmission mode to prevent deformation and to improve wow and flutter by using an arm having a slip mechanism to press the idler to either one of two reel driving disks. CONSTITUTION:An idler arm 19 is attached to the rotary shaft of a motor 11 via a slip mechanism, and a supporter 24 for the idler 23 is fitted with a play to a support surface part 19b. The arm 19 and the idler 23 have a contact with a reel driving disk 2 respectively with revolutions of the motor 11 toward an arrow head A. In this case, the revolving power of a pulley 15 is transmitted with a prescribed value of contact pressure owing to the intervention of the slip mechanism. When the actuation of the motor 11 is stopped, the idler 23 is separated from the disk 2 by the inertia obtained right before the stop of the disk 2. Thus the idler 23 is separated from a rotor of a drive source in a non- transmission mode. In such a way, the deformation is prevented therefore the wow and flutter due to the deformation is improved.</p> |
