| 摘要 |
<p>PURPOSE:To perform a simple and smooth action by a method wherein driving rack rails which can be moved horizontally are provided and down rails at which cams used to raise and lower a cassette have been installed can be moved side by side with the driving rack rails and are built in the driving rack rails. CONSTITUTION:Down rails 44, 45 at which vertically moving cams have been installed are built in driving rack rails 40, 41 which are moved horizontally; they can be moved side by side; their horizontal action is performed by moving the driving rack rails 40, 41. Their vertical action is performed by moving only the down rails 44, 45 at the inside of the driving rack rails 40, 41. Their driving operation is changed over by the position of the driving rack rails 40, 41. Thereby, the title device provided with a high-quality feeling reduces a noise by a smooth action and its mechanism becomes simple.</p> |
