| 摘要 |
PROBLEM TO BE SOLVED: To prevent an illegal act from easily being conducted by forming notch windows and screw holes in fixing members for assisting the fixation of a front and back cover bodies, fixing the end part of the fixing members to the front cover body, and integrally fixing the front cover body and the back cover body to the screw hole through a break screw. SOLUTION: Thin plate shaped fixing members A, B are integrally molded on the both side surfaces 10a of a front cover body 10 up to the position of notch windows 17a, 17b, a notch window 17a is formed and a screw hole 18a is drilled in the fixing member A, and on the side surface 11a of a back cover body 11 a guide bank 19 for the fixing member A is formed and a screw hole 18b is drilled at a position corresponding to the screw hole 18a. A control board is fixed to a chassis 13, the front cover body 10 is mounted to the back cover body 11 by fixing the chassis 13 to the back cover body 11 with a vis or others, the fixing member A is bent, and then break screws are attached to the screw holes 18a, 18b. The head part of the break screws is cut with torque more than a given value and the fixing member A is fixed in the condition that the head part is missed. |
