WORK DEVICE FOR CONSTRUCTION MACHINE

摘要

A pair of bucket cylinder pipings (21) consists of pipe sections (21A) extending along the lower surface of the lower flange (11B) of a jib (11) from the proximal end side of the jib (11) to arm-fixing brackets (11F) on the distal end side of the jib (11) and hose sections (21B) extending from the arm-fixing brackets (11F) through to a bucket cylinder (17). The hose sections (21B) extend to the upper face plate (13A) of the arm (13) through a space section (22) between the arm-fixing brackets (11F) to be connected with the bucket cylinder (17). Consequently, in the case of rotate-operating the arm (13) with respect to the jib (11), the hose sections (21B) of the bucket cylinder pipings (21) can curve so as to wind around the distal end section (11E) of the jib (11) or the proximal end section (13E) of the arm (13).