| 摘要 |
PROBLEM TO BE SOLVED: To improve easily the impact resistance performance at a low cost. SOLUTION: In a locking mechanism, a locking pin 5 is provided in a casing 1, and at the same time, provided in a tray 4 are a locking lever 6 supported to be capable of oscillating, having a locking part 6a on the tip to be engaged with the locking pin 5, an ejection lever 12 supported to be capable of oscillation for pressing the locking lever 6 so as to oscillate the locking lever 6 to detach the locking part 6a from the locking pin 5, and a movable piece holding means 11 for holding a movable piece 11a provided in one end part of the ejection lever 12 so as to set aside the ejection lever 12. Further, an ejection lever balance weight 51 having a prescribed mass is provided on the opposite side to the center of mass of the ejection lever 12, with respect to the oscillation center of the ejection lever 12. COPYRIGHT: (C)2004,JPO
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