| 摘要 |
PROBLEM TO BE SOLVED: To provide a board box capable of being opened for the inspection and maintenance while preventing the fraudulent opening of the board box in which a control circuit board is stored, and capable of easily discriminating the fraudulent opening of the board box and preventing the fraudulence from being concealed. SOLUTION: A plurality of superposed combination parts 50-57, which are superposed on one another via connection parts 60 and 62 projecting from an upper lid member 26 and a base member 25 of the board box 15 respectively, are formed in the board box, and one superposed combination part is fastened by a fastening member 65 to seal the board box in such a way as can not be opened. A confirmation member 81 with a description column, in which the history of inspection performed when the board box 15 is regularly opened for inspection is described, is attached to the upper lid member 26, and identification codes are displayed as molded near the corresponding superposed combination parts 50-57 respectively, so that the column for the history of inspection 81 in the confirmation member corresponds to the identification codes. COPYRIGHT: (C)2007,JPO&INPIT
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