Boom structure

摘要

A boom structure (2) on a work machine (1) including at least two boom branches (2a, 2b) and a main boom structure (2c) extending from their convergence area (4) substantially in a working direction. Thus the boom structure (2) provides a fork-like structure.

主权项

1. A boom structure on a work machine, the work machine comprising a cabin and a boom structure, the boom structure is a branched boom structure that comprises at least two boom branches arranged on the work machine and a main boom structure extending from a convergence area of said boom branches substantially in a working direction, wherein the boom structure is rotatable in relation to a frame of the work machine about a substantially vertical axis,
the boom branches are arranged on the work machine substantially in a vicinity of planes formed by side walls of the cabin, each of the boom branches is arranged to extend at least partly to an area of one of the corresponding side walls of the cabin in at least one use or transport position of the work machine, the boom structure is turnable in relation to an axis perpendicular to both the working direction and the vertical axis, and the boom branches and at least part of the main boom structure constitute a substantially continuous structure in a such a manner that the boom branches and said at least part of the main boom structure are not substantially movable in relation to one another.