Patent ID: 7717218

Claim:
A swiveling work machine comprising: a traveling apparatus; a swivel base mounted on the traveling apparatus to be pivotable about a vertical axis; a hood disposed at a rear portion of the swivel base, the hood accommodating therein an engine, a support frame being disposed across over the engine; a rollover protection structure (ROPS) having a front end thereof fixed to the swivel base and a rear end thereof fixed to an upper portion of the support frame; a vertical rib disposed erect on the swivel base; and a swing bracket connected to a front end of the vertical rib for pivotally supporting an implement, wherein said support frame includes a front leg member disposed on one lateral side of said ROPS, said front leg member extending to the vicinity of a front end of the swivel base, and a front end of said front leg member being fixed to a forward upper face of said vertical rib in the vicinity of an upper end of said swing bracket.