| 摘要 |
The invention is directed to providing a frame structure of a crawler type construction machine vehicle facilitating a degree of freedom of reforming in accordance with a variation of vehicle kind. The frame structure is capable of setting a vehicle body gravitational center position to an optimum portion by use of an upper vehicle frame at an arbitrary position that is capable of strengthening total rigidity by an integrated structure. The frame structure has left and right track frames, and front and rear cross beams for coupling the left and right track frames in a shape of a lattice. A vehicle body frame is disposed between inner sides of the left and right track frames and coupled thereto in the shape of a lattice above the front and rear cross beams and the left and right track frames. The front and rear cross beams and the vehicle body frames are integrally constituted.
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