To provide a function which can secure a wide view at work by enabling movement of a cab in the vertical, front and rear and their combined positions and maintaining stability even if separated from an upper turning body.
In this work machinery 1 in which a work machine 7 is attached on the upper turning body 5 provided on a traveling body through a turning mechanism in the front of its turning center and a cab is provided in which a cab is equipped movably to the front and above on the upper turning body 5, it is constituted by a slide base unit 10 provided with a movable frame 13 which can slide in the front and rear direction by a straight work machine on a base frame 11, a parallel link 22 whose base end is mounted by an elevation support frame 21 fixed onto the upper turning body 5 and whose tip end is connected to the base frame 11 of the slide base unit 10, and an elevation link mechanism 20 provided with a work machine for operating the parallel link 22, and the cab 30 is attached to the movable frame 13.
NISHIMURA SATORU
TSUCHIE MORIO
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