Patent ID: 8006991
Filing Date: 2011-08-30
Classification: E02F

Abstract:
1. A construction machine, comprising: a lower traveling body; an upper rotating body rotatably mounted on said lower traveling body; a bonnet for opening and closing an upper surface side portion of an engine room housing an engine, the bonnet being disposed on a rear part of said upper rotating body; a step comprising a horizontal surface located below a top surface of said bonnet, said step serving as a foothold for opening and closing work of said bonnet and for maintenance work, the step being provided in an upper frame of said upper rotating body on a front side of said engine room; a duct for exhausting the air within said engine room to the exterior, the duct being provided on the lower side of said step, which step is located exteriorly of the bonnet when the bonnet has closed the upper surface side portion of the engine room, the duct being provided in a state that said step forms an upper surface wall of said duct; and a partition wall that partitions the front surface side of said engine room from the exterior, said step being attached to a front surface of said partition wall, whereby the step extends forwardly from the partition wall and exteriorly of the engine room.