| 摘要 |
PROBLEM TO BE SOLVED: To prevent a panel from being broken down or damaged due to falling.SOLUTION: A body having a panel attaching and detaching part and a panel attached and detached to/from the panel attaching and detaching part are provided, the panel attaching and detaching part is provided with a lock mechanism for locking the panel to the body and a holding mechanism for holding the panel while locking by the lock mechanism is released when removing the panel from the body, locking of the panel to the body by the lock mechanism is released by moving the panel in a prescribed direction with respect to the body, and holding of the panel to the body by the holding mechanism is released by moving the panel in a direction different from the prescribed direction with respect to the body. |
