ARTICULATED BOOM FOR HYDRO-EXCAVATION VEHICLE

摘要

An articulated boom for a hydro-excavation vehicle includes a boom support adapted to be mounted on an hydro- excavation vehicle for rotation about a substantially vertical rotational axis. A primary arm section is provided which is capable of being raised and lowered about a substantially horizontal pivot axis. A secondary arm assembly is provided having one or more supplemental arm sections which are capable of side to side movement about vertical pivot axes. A hand section is provided which is capable of being raised and lowered about a substantially horizontal pivot axis. The articulated boom, as described, has an extended reach which can reach around obstacles and enable longer sections of a linear trench to be completed before having to move the hydro- excavation vehicle.