Patent ID: 9181675
Filing Date: 2015-11-10
Classification: E02F

Abstract:
1. A wheel type hydraulic excavator comprising: a vehicle body; a working mechanism tiltably disposed in an intermediate position in a left-right direction at a front side of said vehicle body; a cab disposed at a front portion of said vehicle body and on a left side of said working mechanism, and where said cab includes an operator's seat for an operator to be seated on; and a right front housing cover disposed at the front portion of said vehicle body and on a right side of said working mechanism, wherein said working mechanism includes: a first boom with a base end rotatably connected to said vehicle body; a second boom rotatably connected to a tip end of said first boom; a boom cylinder of which a first end in a length direction is connected to a cylinder mounting portion of said vehicle body in a position ahead of said base end of said first boom and a second end in the length direction is connected to a side of said tip end of said first boom to tilt said first boom relative to said vehicle body; and a positioning cylinder disposed between said first boom and said second boom at a front surface side of said first boom to adjust a folding angle of said second boom to said first boom, wherein said working mechanism is positioned in a traveling stance when said boom cylinder is expanded to rotate said tip end of said first boom towards a rear side and said positioning cylinder is compressed to rotate a tip end of said second boom towards a lower side; wherein said working mechanism positioned in said traveling stance includes said boom cylinder inclined towards the rear side at a tilting angle (α) in such a manner that said second end is positioned in back of said first end, and wherein said right front housing cover includes a front surface plate of inclined towards the rear side and positioned in an inclined plane extending in the left-right direction along a front end of said boom cylinder when said working mechanism is positioned in said traveling stance.