| 摘要 |
<p>PURPOSE:To surely prevent damage to electronic comonents by contacting and conducting a support shaft of an opening/closing door to a chassis or the like via a spring restoring the door. CONSTITUTION:One end 6a of the spring 6 for restoring the opening/closing door is prolonged and its tip is in contact with an upper plate rear face 2a of the chassis 2. Thus, when a cassette A is brought into contact with the door 4 and further pushed, the static electricity charged on a human body is discharged to the support shaft 5 of the door close to the human body than the printed circuit board 8 and grounded to the chassis 2 through the spring 6 in contact with the support shaft 5. Thus, the electronic components on the printed circuit board are protected from electrostatic destruction.</p> |
