| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening structure around a cab door for improving the appearance beauty of a clearance formed around the cab door with a simple means and manufacturing workability. SOLUTION: This opening structure around the cab door is determined by a clearance 5 between a peripheral edge 4 of a cab door 2 and door stiffeners 20 and 21 facing to the peripheral edge 4. The shape of the clearance 5 becomes discreet by forming a gradient curve surface part 1 on door outer stiffeners 11 of the door stiffeners 20 and 21, thereby improving the appearance beauty. The clearance 5 is less affected by the dispersion of component accuracy and assembling accuracy, and therefore a manufacturing property of the component around the door can be improved.
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