| 摘要 |
A lockable box has a tray and cover hinged together at the open rear end of the cover and locked at their opposite ends. A pair of detent spring fingers extending upwardly from the end of the tray lock over shoulders within the unhinged end of the cover. The detent spring fingers are released to open the box by inserting key lugs through holes in the lid of the cover in line with the spring detent fingers to disengage them from the cover. The cover and a tray are hinged together by a pair of elongated combination slide and hinge pins extending out from the rear midportions of the sides of the tray, whose longer dimension rotatably engages within hinge sockets at the rear ends of adjoining longitudinal grooves within the sides of the cover. Slide pins within the sides of the open rear end of the cover engage within longitudinal grooves in the lower outsides of the tray for helping guide the nesting movement of the tray and cover in conjunction with the combination hinge and slide guide pins on the tray sliding within the longitudinal grooves within the sides of the cover. The bottom and top edges of the slide guide pins are reduced by flats to leave arcuate side edges which rotatably engage within the enlarged hinge sockets. The reversible address plate is locked on the closed box by locking lugs extending upwardly from the sides of the tray which engage into notches on the address plate through holes in the lid of the cover when the cover is closed down over the tray.
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