Patent ID: 8646557

Claim:
A construction machine comprising: a lower propelling body; an upper slewing body including an upper frame which is provided on the lower propelling body so as to be revolvable; a cab supported on the upper frame of the upper slewing body; and a device provided on the upper frame, wherein the cab includes a floor plate which is provided on the upper frame and which constitutes a floor surface of the cab, a frame-shaped lower frame which extends along a peripheral edge of the floor plate and which is fixed onto the floor plate, a column standing on the lower frame, and a panel member which is supported by the lower frame and the column and which constitutes an outer surface of the cab, the device is arranged below the floor plate such that a part of the device overlaps with a peripheral edge of the lower frame in plan view, a floor-side projecting portion which projects upward is provided on the peripheral edge of the floor plate and a floor-side housing portion which opens downward and which houses the device is provided below the floor-side projecting portion, and a frame-side projecting portion which projects upward is provided on the lower frame and a frame-side housing portion which opens downward and which houses the floor-side projecting portion is provided below the frame-side projecting portion.