| 摘要 |
<p>PURPOSE:To ensure the loading and operation of large/small cassettes without any adaptor by loading a large/small cassette to turn on/off a switch and moving a supply reel base horizontally to slide the supply reel base and a brake release pin to two positions. CONSTITUTION:One switch is turned on by loading a small cassette in two detection switches corresponding to the large/small cassettes, the supply reel base 17b is slided in the direction A by left drive of a motor gear 19 and the base acts like a small cassette supply reel base 18. A gear 23c is driven to the right at the same time, a pin 24 at the tip of an arm 23a is slided to the left in a circular-arc groove and acts like a reel brake release pin at the position 24. Two switches are turned on by loading the large cassette 5 and the supply reel base is moved to the position 17 by the right drive of the gear 19 and the release pin is moved to the position 23. The small cassette winding reel base 20 is driven by the large cassette winding reel base 21. Thus, the large/ small cassettes are operated surely without using any adaptor.</p> |
