Apparatus, method and program for protecting accommodated item such as cartridge

摘要

The present invention relates to protection of accommodated items such as cartridges each incorporating recording media and enhances a protection function for the accommodated items. The present invention relates to protection of accommodated items accommodated in an accommodating shelf into/out of which accommodated items (cartridges) such as cartridges each incorporating recording media such as magnetic tapes can be put/taken. The present invention includes guard bars (longitudinal bars BV and lateral bars BL) that are disposed on or in front of entrance/exit portions of a plurality of cells that accommodate the accommodated items and that obstruct putting in/taking out of the accommodated items, and the present invention includes a structure that enables loading in or loading out of the accommodated items by moving guard bars corresponding to a cell into/out of which the accommodated item is loaded, from a closed position to an opened position and that, after the loading in or the loading out, protects the accommodated item by moving the guard bars from the opened position thereof to the closed position. Thereby, the protection of the accommodated items is facilitated by a simple structure.