| 摘要 |
PROBLEM TO BE SOLVED: To provide a board case capable of reliably preventing a fraud done to ROM (a storage element) of a control board.SOLUTION: A rectangular box-shaped board case as a transparent board case formed by fitting a base member 31 and a cover member 32, is configured to store, therein, a control board 37 including ROM 90 detachably mounted thereon, where the two mutually facing long sides of the board case are formed of L-shaped engagement parts engaged by a slide system sliding in the longitudinal direction, and bond parts stuck by adhesives. The upper side of the board case includes sealing pins 34, locking parts involving in the sliding in the longitudinal direction, and engagement parts. The base member and the cover member are engaged via the engagement member on the lower side of the board case, where both are engaged by sliding in the longitudinal direction. This configuration can prevent a gap from being formed in the case by applying fraudulent external force in a direction orthogonal to the sliding direction. Further the base member and the cover member are fitted by insertion of the sealing pin from the direction orthogonal to the slide direction and by adhesion.SELECTED DRAWING: Figure 4 |
