| 摘要 |
<p>In order to increase the rigidity of a rail provided to a bed of a dump truck, this dump truck is provided with a vehicle body frame (2), a hinge pin (6), and a bed (5), a bottom surface (11a) of the bed being provided with a rail (12) along the forward-backward direction of the vehicle body frame. The rail is a hollow structural body having a first rail side panel (12a) and a second rail side panel (12b) extending downward from the bottom surface of the bed and facing each other across a gap in the left-right direction of the vehicle body frame, and a rail bottom panel (12c). A reactive force receiving part (20) for receiving reactive force from the vehicle body frame is formed in the rail bottom panel. An outer side surface (12a-1) of the first rail side panel and/or an outer side surface (12b-1) of the second rail side panel is positioned evenly with an end part (20a or 20b) of the reactive force receiving part or farther inward than the end part.</p> |
