Patent ID: 7535721

Claim:
A casing for an electronic device, comprising: a casing body that houses the electronic device; and a foot part that is provided to be movable forward and backward from a surface of the casing body and to adjust inclination of the electronic device when installed on an installation target surface; the casing body including a boss formed to protrude on an inner surface of the casing body and having a hole formed through the casing body, the hole connecting an inside and an outside of the casing body, the foot part including: a grounding part that is exposed from the casing for the electronic device and abuts against the installation target surface, a shaft part housed within the boss and having a screw groove formed on its outer circumferential surface, the screw groove of the shaft part being a double-thread screw groove in which two screw grooves with different depths are formed, the deeper screw groove of the two screw grooves engaging with the screw thread on an interior surface of the boss, and a recess part being formed in the shallower screw groove of the two screw grooves, and the boss including: the interior surface and an exterior surface, a screw thread on the interior surface engaging with the screw groove of the shaft part and extending in a circumferential direction of engagement without overlapping a circumference of the hole as viewed from the axial direction of the movement of the foot part, the screw thread not extending around the entire circumference of the interior surface of the boss as viewed from the axial direction of the movement of the foot part, and a protrusion, to be fit with the recess part when the shaft part turns by a predetermined quantity with respect to the interior surface of the boss, being formed on the interior surface of the boss.