| 摘要 |
PURPOSE:To widen the open section of a container case at the open position by fixing while applying energizing force preliminarily onto a spring member. CONSTITUTION:A container box system comprises a retainer 10 and a containing case 12 slidable against the retainer 10 between which a protector guide 13 for forming a case stopper mechanism is provided. A rack 42 having engaging teeth continuous with back/fro direction of said case 12 is provided while an energizing mechanism 50 comprised of a spiral spring and a pinion 60 having teeth engageable with the rack 42 and a pair of stopper sections are provided the retainer 10. The spiral spring will energize said case 12 in the opening direction through the pinion 60 and rack 42 while provide predetermined energizing force even at the open position of said case 12.
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