| 摘要 |
PROBLEM TO BE SOLVED: To improve performance, by expanding a work range of a work device, by largely tilting a boom of the work device up to a maximum. SOLUTION: A rod installing part 27 for installing a tip part of a rod 14B of a boom cylinder 14, is constituted by being positioned and arranged in a cylinder storage part 26 arranged in a first straight line part 21A of the boom 21. Thus, since a distance dimension can be reduced up to a rear plate 22B of a hollow pipe 22 for constituting the first straight line part 21A from the tip part of the rod 14B of the boom cylinder 14, the work device 11 can approach the cab 6 side by largely tilting to the upper side or the rear side, and an excavatable height dimension H1 can be heightened. Moreover, the boom cylinder 14 is arranged on the front side of the first straight line part 21A, to thereby prevent a hydraulic hose connected to the boom cylinder 14 from coming into contact with a cab 6, and the boom 21 can be largely tilted in this point. COPYRIGHT: (C)2005,JPO&NCIPI
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