REVOLVING FRAME OF WORK MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a revolving frame of a work machine which makes buckling less likely to occur while inhibiting increase of the weight.SOLUTION: Reinforcement members 5 are respectively attached to side surfaces of a pair of side plates 3 at the inner side of the pair of side plates 3 which face each other in a horizontal direction B. Each reinforcement member 5 inclines in an upward direction from the front side of a revolving frame 1 to the rear side and is disposed at the rear side relative to a revolving center O of a revolving bearing 22.