| 摘要 |
PROBLEM TO BE SOLVED: To shield the inside with good appearance and also to prevent dust, harmful insects or the like from entering by forming a seat face opposite to a screw head to be an arch while being recessed from a cover main body and by forming a through part adapted to pass sideward in the vicinity of the screw head on the seat face. SOLUTION: A plate-like cover 3 is detachably attached to an opening 2 on a front face of a box-shaped base 1 forming a machine console. In this case, an attaching female screw part 4 comprising a female screw 4b embedded in a boss 4a is provided on an internal position toward a bottom from the opening 2. In addition, corresponding to the female screw part 4, a seat face 6 comprising a U-shaped notch 6a and a U-shaped receive face 6b opposite to a head of a head screw 5 is integrally formed with the cover 3, while a through part 7 on one of sides of the seat face 6 is formed, which allows the vicinity of the head of the screw 5 to pass through. Thus an attachment structure without the screw head protruding on a surface of the cover 3 may be obtained. |
