| 摘要 |
PROBLEM TO BE SOLVED: To provide a board case unit of a configuration which makes it difficult to illegally open a board case and can prevent fraudulent practice to a control board.SOLUTION: A board case unit can relatively move in a closing direction of a case lid 130 by a pinion gear 138 rotating anticlockwise when relatively moving the case lid 130 in the closing direction with respect to a case body 120. When the board case unit tries to relatively move the case lid 130 in an opening direction with respect to the case body 120, the pinion gear 138 tries to be rotated clockwise, but the rotation is regulated by a one-way clutch 139, and relative movement of the case lid 130 in the opening direction is blocked. |
