Abstract: The present invention is provided with: a plate provided while one surface is directed toward the machine body structure of a working machine; a first support and a second support, which are raised from the one surface of the plate and which affix the plate to the machine body structure; a hydraulic hose which is routed on and along the one surface of the plate; and an electric component mounted on the one surface of the plate. The one surface of the plate has a hydraulic hose arrangement section where the hydraulic hose is arranged between the first support and the second support, and an electric component mounting section where the electric component is mounted so as to be adjacent to the hydraulic hose arrangement section.

Abstract: A large thin display unit has a chassis structure with a first horizontally or vertically disposed enclosure, a second vertically extending enclosure mounted to the upper side of the first enclosure, and a third vertically extending enclosure mounted above the first enclosure behind the second enclosure. The second enclosure has an opening that opens toward a front of the unit and has a margin along the perimeter of the opening. The thin display section is fixed to the margin in a vertical position. Further, an air route is formed between the third enclosure and a planar portion of the second enclosure, and an air route is formed between the thin display section and the planar portion of the second enclosure. Also, a wiring space is formed between the thin display section and the planar portion of the second enclosure. Preferably, the thin display section is a large liquid-crystal display provided with a plurality of backlights.