| 摘要 |
An object of the present invention is to provide a construction machine in which a load acting on a vehicle body during an operation is transferred appropriately, thereby ensuring the strength of the vehicle body and improving reliability, and in which welding reliability can also be improved. In the construction machine according to the present invention, a frame of a crawler-type traveling body comprises a box-shaped center frame, a pair of truck frames disposed on the outside of opposite side portions of the center frame, and a hollow connecting member for connecting the center frame to the truck frames, in which least one of the height differences between an upper face or a lower face of the center frame at a joining portion between the center frame and the connecting member and an upper face or a lower face of a center joining portion of the connecting member is set respectively at a dimension that is approximately equal to or less than the thickness of an upper face plate or a lower face plate of the center frame.
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