| 摘要 |
PROBLEM TO BE SOLVED: To smoothly perform operation of a vehicle such as reverse and slewing movement by providing a projecting part for confirming the rearmost position on a counterweight. SOLUTION: On a base carrier 1, a revolving super structure 2 constituted of a cab 4, a housing cover 5, a counterweight 8, and the like is turnably loaded. The rear face 12 of the counterweight 8 is formed into a horizontal circular arc curved face relative to the left and right directions, a vertical circular arc curved face relative to the vertical directions, and a horizontal circular arc projecting part 16 projecting rearward up to the vertical position nearly equal to the rearmost part position 13 is provided on the rear face upper side angular corner part 14. Hereby, an operator in the cab 4 can grasp the position such as the rearmost position 12 only by visualizing the projecting part 16, and hence can smoothly perform the operation such as reverse and slewing motion.
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