| 摘要 |
In order to provide a case in which, when an upper case and a lower case are joined by fixing together by screws, joining accuracy of the upper case and the lower case can be improved, a case comprising an upper case and a lower case, the case being provided with screw bosses, disposed at predetermined positions at the upper case and the lower case, for joining the upper case and the lower case, wherein the screw bosses have socket and spigot joint structure in which a convex portion of one of the screw bosses and a concave portion of the other of the screw bosses are fitted, and an outer peripheral surface of the convex portion and an inner peripheral surface of the concave portion are inclined surfaces, are provided.
|
