Patent ID: 8223276

Claim:
A hollow box-type cabinet of electronic equipment, comprising: a box-type first case made of resin with a first flat portion and a first circumference surface portion which stands from the surrounding edges of the first flat portion; and a box-type second case made of resin with a second flat portion and a second circumference surface portion which stands from the surrounding edges of the second flat portion, wherein a plurality of hooks are formed on an inner surface of the first circumference surface portion, a plurality of engaging holes are formed on the second circumference surface portion to engage with the plurality of hooks from an exterior of the second circumference surface portion when the first and the second cases are coupled, the engaging holes are formed elongated in the direction perpendicular to an engaging direction of the first and second cases, a rib that crosses the engaging hole in a shorter side direction is formed integrally on an inner surface of the second circumference surface portion, and the rib has a width narrower than a longer side of the engaging hole.