| 摘要 |
PURPOSE: A trailer having a working beam with a steering function is provided to prevent the one-sided wear of a wheel due to friction with the ground by steering a rear wheel when a towing vehicle in front rotates towards the right or left side. CONSTITUTION: A trailer(1) having a working beam with a steering function comprises a goose neck frame(10), a main frame(20), a steering device(100), and a steering axle. The main frame is positioned lower than the goose neck frame. The main frame composes a driving unit where an axle is arranged. The steering device is installed in the rear side of a king pin in the goose neck frame. The steering device operates in response to the left or right rotation of a towing vehicle coupler. The steering axle rotates in the left or right direction depending on the operation of the steering device.
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