To provide a cabinet for a switchboard, etc., which can be reduced in manufacturing costs, is stable to strength and highly reliable.
One corner C of the cabinet to connect frame materials 2 which are four vertical pillar members and eight horizontal beam members in a frame-like parallelopiped is built up with one connecting metal piece 5. The connecting metal piece 5 is comprised of a flat plate-like first attaching plate 5-1 connected to a first frame material 2-1 and a second frame material 2-2, a flat plate-like second attaching plate 5-2 connected to the first frame material 2-1 and the third frame material 2-3, and a flat plate-like connector 5-3 to integrally connect the first attaching plate 5-1 and the second attaching plate 5-2, and formed by bending a sheet of metal plate. Each attaching plate 5-1, 5-2 is an almost L-shape flat plate viewed from the front. The connector 5-3 and each attaching plate 5-1, 5-2 cross at right angles with each other. Each attaching plate 5-1, 5-2 intersects with each other.
ICHII TSUTOMU
Hideka Tanaka
Yoshiyuki Shiraishi
Kunihiko Shiromura
Tsuyoshi Kumano
Hiroaki Yamane