| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a drum from being floated from a chassis due to a tape tension. SOLUTION: A drum 1 is supported on a chassis 6 at three points 2a, 2b, 2c by three supports 2. The drum 1 is fixed to the chassis 6 by fitting the drum 1 at a position 13a toward the point 2c from a center O on a line tying the center O at the bottom of the drum 1 and the point 2c and threading a machine screw. The mount machine screw is energized by a compression spring and the drum 1 is pressed into contact with the supports 2. Thus, a distance from the point 13a to the two points 2b, 2c is selected longer to prevent the bottom of the drum 1 from being floated from the point 2c due to a tape tension A.</p> |
