Vertical lift, extendible reach mechanism for a truck

摘要

A vertical lift extendible reach mechanism for a truck having a forward end and a rearward end in which one or more posts are mounted on the rear of the truck and a boom is pivotally connected to the upper end of the post and extends forwardly over the truck and supports an attachment on the forward end. A power means pivots the post forwardly and rearwardly to move the boom and attachment forwardly and rearwardly, and a power means raises and lowers the forward end of the boom. A third power means, such as a hydraulic cylinder, controls the forward end of the boom and the attachment thereon, as the second mentioned power means is operated, to cause the forward end of the boom and the attachment to move in a substantially vertical line between its lowered and raised positions. The hydraulic cylinder for controlling the forward end of the boom may operate telescopic sections in the boom to retract and extend as the forward end thereof is moved between its two positions.