CUTTING HEAD SUPPORT WITH PIVOTING LINK FOR ARTICULATED BOOM

摘要

A cutting head support (11) which is adapted to be mounted to an articulated boom. The cutting head support includes a base (13) which in use is to pivotally support a cutting tool (21) through a mounting (19) such that the cutting tool extends outwardly from one side of the base. The mounting is pivotally supported from the base and is associated with a link member (29) pivotally mounted between the mounting and a pivot (33). The link member is supported from the mounting at a position radially displaced from the pivot axis of the mounting and in opposed relation to the cutting tool. The pivot is spaced from the mounting. The link member is pivotally and slidabty supported on the pivot. The cutting head support includes a drive means (35, 37) capable of causing angular displacement of the link member about the pivot resulting in the rotation of the mounting to cause angular displacement of the cutting tool.