Patent ID: 7070383

Claim:
A boom assembly to be swingably supported to a receiving bracket provided at a front of a swivel table of a swiveling utility vehicle, comprising: a swing bracket pivotally connectable with the receiving bracket of the swivel table to be pivotable about a vertical axis; a hollow bent boom pivotally connected to the swing bracket; a boom cylinder for lifting the boom; a hollow arm pivotally connected to a leading end of the boom and pivotally supporting an implement at a leading end of the arm; a pair of right and left connecting brackets attached to opposed side faces of a base end of the arm; an arm cylinder provided between the connecting brackets and the boom; an implement cylinder provided between the implement and the connecting brackets for operating the implement; a hydraulic service port for a hydraulic implement; and a first hydraulic oil pipe for supplying pressure oil to the implement cylinder and a second hydraulic oil pipe for supplying oil pressure to the hydraulic service port; wherein said hydraulic service port is provided in said connecting brackets, and said first and second hydraulic oil pipes extend through the inside of the hollow boom to be exposed to the outside from a back face area of the leading end of the boom and then further extend between said pair of right and left connecting brackets; and wherein said first hydraulic oil pipe is connected to said implement cylinder, and said second hydraulic oil pipe is connected to said hydraulic service port.