HEIGHT-ADJUSTABLE PROTECTIVE GUARDRAIL FOR A TRUCK, CAPABLE OF CONVENIENTLY UNFOLDING A PROTECTIVE GUARDRAIL TO A CERTAIN HEIGHT OR FOLDING BACK AS NEEDED

摘要

PURPOSE: A height-adjustable protective guardrail for a truck is provided to conveniently unfold a protective guardrail to a certain height or fold back as needed.;CONSTITUTION: A height-adjustable protective guardrail for a truck comprises two or more clampers(31), lower support bars(32), middle connection bars(33), upper support bars(34), upper connection bars(35), a crossbar(36) and a unlocking unit(50). The two or more clampers are fixed to the inner side of a protective plate(2) with a certain distance. The lower support bar is rotatably fixed to each clamper. The middle connection bar is rotatably installed at the upper part of each lower support bar. The upper support bar is rotatably installed at the upper part of each middle connection bar. The upper connection bar is rotatably installed at the upper part of each upper support bar. The crossbar interlinks the upper parts of the upper connection bars. The unlocking unit enables the lower support bars, the middles connection bars and the upper support bars to be perpendicular to their corresponding clampers or to be fold as they were.;COPYRIGHT KIPO 2010