| 摘要 |
Production of a working vehicle frame consumes high costs because it requires high rigidity A simple construction improves the rigidity of the frame and reduces costs required for the production. In a structure of a frame (9) for a working vehicle (1), side sections of the frame (9) are constructed in a boat form, and, in a front view, the width of a lower section of the frame (9) is set smaller than that of the central section in the vertical direction of the frame (9). Further, a mast plate (63) for supporting a front loader (2) and a front axle installation plate section (75) are integrated, and side frames (62) constructing the side section of the frame (9) and the mast plate (63) are jointed in a lateral T shape in a side view.
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