| 摘要 |
A highway guard rail assembly comprising hollow mounting posts (1) of a suitable plastic material with a metal guard rail bar (2) extending from post to post and attached to the posts, wherein the bar (2) is fastened to the post (1) with bolts (3) with associated nuts (4), wherein the bolt (5) extends only through the part of the post (1) resting against the bar (2), wherein the bolt hole (5) in the bar (2) is reinforced with a washer (6) between the nut (4) (the head (8)) and the bar, whilst the bolt hole (7) in the post (1) has a diameter greater than that of the bolt (3) but slightly smaller than the diameter of the bolt head (8) (the nut (4)), the bolt head (8) (the nut (4)) resting directly against the interior wall (9) of the post (1). |
