| 摘要 |
PURPOSE:To reduce an operating force of an eject button by pressing and moving forcibly a holder being in a set position of the lower part, in the upper direction, by a cam piece operated by the eject button. CONSTITUTION:When an eject button 17 is pushed, a cam piece 15 interlocked with said button lifts up a holder 1 against springs 11, 19, and an inclined cam surface 15a of the cam piece 15 abuts on a sliding piece 4 and pushes it up. When the holder 1 is lifted up forcibly to the middle of the upper and lower strokes of the holder, a pressing force of the spring 11 operates effectively and lifts up automatically the holder 1 to an initial state against a depressing spring 19. In this way, the stroke for lifting up forcibly the holder 1 which is held in a set position of the lower part by a prescribed pressing and energizing force, by operating the button 17 is reduced to half, and also a resistance of a spring force which is received before that time is small, therefore, an eject operating force can be reduced by that portion.
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