| 摘要 |
PURPOSE:To always secure an appropriate amount of force to open the door by lessening the sudden opening function due to the door energizing spring. CONSTITUTION:Hooking tool 10 mounted to magentic disk driving unit 11 releases the engagement with door 7 with press of push-button 9 in the state the door is closed in engagement with engagement part 7a of the door. Thus door 7 is energized with 1st elastic component 12 attached to frame 5 to be shifted toward the opening position. In this case, roller 13 provided to link plate 6 is apart from 2nd elastic component 14. In response to opening of the door with the energizing function of component 12, roller 13 starts shifting with touch component 14 by sliding. Roller 13 keeps the sliding touch while lessening the energizing function until reaches the bending part of component 14. As a result, the door moves slowly toward the opening position. The elastic force of component 14 functions toward the direction where roller 13 is pushed up after passing through the bending part to promote the energizing function of component 12. |
