Patent ID: 8899260

Claim:
A construction machine, comprising: a lower propelling body; an upper frame which is slewably mounted on the lower propelling body; a pair of a first vertical plate and a second vertical plate which are provided on the upper frame, the first vertical plate and the second vertical plate being disposed in left and right directions of the upper frame, and extending in front and rear directions of the upper frame; a partition plate which extends in the left and right directions and intersects with the first vertical plate and the second vertical plate in such a manner that a space above the upper frame is divided into a front section and a rear section; an engine which is provided along the left and right directions in the rear section; a hydraulic pump which is driven by the engine, at least a portion of the hydraulic pump being disposed in a region of the rear section opposite to the second vertical plate with respect to the first vertical plate; a cabin which is disposed in a region of the front section opposite to the second vertical plate with respect to the first vertical plate; a hydraulic oil tank which is provided in a region of the front section closer to the second vertical plate than the first vertical plate; and a pump suction pipeline which connects between the hydraulic pump and the hydraulic oil tank, wherein the first vertical plate is formed with a vertical-plate-side through-hole which passes through a portion of the first vertical plate in the rear section in the left and right directions, the partition plate is formed with a partition-plate-side through-hole which passes through a portion of the partition plate between the first vertical plate and the second vertical plate in the front and rear directions, the pump suction pipeline is disposed between the front section and the rear section while passing through the vertical-plate-side through-hole and the partition-plate-side through-hole, and the pump suction pipeline includes a portion disposed between the vertical-plate-side through-hole and the partition-plate-side through-hole in a region of the rear section between the first vertical plate and the second vertical plate.