| 摘要 |
PURPOSE:To easily transport a heavy material without using an auxiliary facility such as, for example, crane, by splitting a heavy weight carrier vehicle into three sections, a tractor, a carrier bed and a trailer, and as well by firmly coupling these three sections with the use of a plug-in structure. CONSTITUTION:A coupling member 3 is attached to a dolly 2 attached to a tractor body 1. The coupling member 3 may be elevated at the connecting part of the dolly by means of a hydraulic device 4, and has a plug-in part 6. A carrier bed 7 carrying thereon a heavy weight material to be transported, is formed therein with a fitting hole adapted to be engaged with the plug-in part 6. A trailer composing vehicle 11 is self-propelledable, and is attached thereon with a coupling member 12 having a plug-in part 15 adapted to be engaged with a fitting hole formed in the carrier bed 7. When the coupling member 3, the carrier bed 7 and the trailer composing vehicle 11 are coupled together, these three constitutes an integral trailer car. In this condition, the hydraulic units 4, 13 are simultaneously operated to make it possible to run the entire trailer vehicle. |
