| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock mechanism of a control board case which can effectively prevent a control board from being replaced and modified inappropriately, and, which can certainly determine that the control board case is opened.SOLUTION: The lock mechanism includes: a lock lever 70 for fixing a lid plate 30 of a control board case 1 to a main body part 10; an intermediate rib 20 provided in a housing part 11 of the main body part 10; an upper rib 40 and a lower rib 45 which are provided in an inner surface 30f of the lid plate 30; and an operation hole 18 provided in the main body part 10. The lid plate 30 which engages the lock lever 70 in the lower rib 45 is attached to the main body part 10 in advance, and in the state, the lock lever 70 is moved with a general-purpose tool 100 which is inserted in the operation hole 18 from the exterior of the control board case 1 to engage to the lock position over the upper rib 40, the lower rib 45, and the intermediate rib 20, thereby locking the lid plate 30 to the main body part 10. |
