Abstract: Provided is a construction machine that can realize the assurance of good vision for an operator sitting in a seat. In a wheeled excavator provided with a upperstructure (2), a seat disposed in a cab (7) mounted on the upperstructure (2), steps (11) arranged laterally to the cab (7) with the seat disposed therein and including a first step member (22), second step member (23) and third step member (24), and a compartment cover (13) arranged on a side opposite to the seat with respect to the steps (11), an arcuate upper indentation (13a) is formed in the compartment cover (13) at a part thereof that faces a space (25) defined between the third step member (24) and the second step member (23), and an arcuate lower indentation (13b) is formed in the compartment cover (13) at another part thereof that faces a space (26) defined between the second step member (23) and the first step member (22).

Abstract: A working mechanism (4) takes a traveling stance by a way that left and right boom cylinders (9, 10) are expanded to rotate a tip end of a first boom (5) to the rear side and a positioning cylinder (11) is compressed to rotate a tip end of a second boom (6) to the lower side. In the traveling stance of the working mechanism (4), a front surface plate (23A) of a right front housing cover (23) is inclined along a tilting angle (?) of the left and right boom cylinders (9, 10), and the front surface plate (23A) of the right front housing cover (23) is arranged in a position of lining with front ends (9A1, 10A1) of tubes (9A, 10A) in the left-right direction forming the respective boom cylinders (9, 10).

Abstract: A counterweight (9) provided on a rear side of an upper revolving structure (3) is formed as a block body in which a boundary position between a rear surface (9B) and the upper surface (9C) is a projected curved surface (9E) which is curved with a projected arc shape. A rear camera device (11) mounted on the upper surface (9C) of the counterweight (9) is arranged on the upper surface (9C) of the counterweight (9) and in a state protruding rearward toward the projected curved surface (9E) of the counterweight (9). On the other hand, a cover member (19) covering a gap (18) formed by the projected curved surface (9E) is provided between the projected curved surface (9E) of the counterweight (9) and a rear part lower surface (12F) of a mounting plate (12) of the rear camera device (11).

Abstract: Provided is a construction machine that can realize the assurance of good vision for an operator sitting in a seat. In a wheeled excavator provided with a upperstructure (2), a seat disposed in a cab (7) mounted on the upperstructure (2), steps (11) arranged laterally to the cab (7) with the seat disposed therein and including a first step member (22), second step member (23) and third step member (24), and a compartment cover (13) arranged on a side opposite to the seat with respect to the steps (11), an arcuate upper indentation (13a) is formed in the compartment cover (13) at a part thereof that faces a space (25) defined between the third step member (24) and the second step member (23), and an arcuate lower indentation (13b) is formed in the compartment cover (13) at another part thereof that faces a space (26) defined between the second step member (23) and the first step member (22).

Abstract: A right front housing cover is arranged in the right side of a working mechanism, and a first control valve is arranged in a front portion side of a valve accommodation room that is covered with the right front housing cover. Further, a signal control valve block is arranged in the back side of the first control valve and in the upper side of the first control valve, and a solenoid valve is arranged in the back side of the signal control valve block. A front surface plate forming part of the right front housing cover has a lower side is inclined in an oblique downward direction toward the forward side, and is arranged along a virtual line that extends in an oblique downward direction through a front end portion of the first control valve and a front end portion of the signal control valve block.

Abstract: A right front housing cover is arranged in the right side of a working mechanism, and a first control valve is arranged in a front portion side of a valve accommodation room that is covered with the right front housing cover. Further, a signal control valve block is arranged in the back side of the first control valve and in the upper side of the first control valve, and a solenoid valve is arranged in the back side of the signal control valve block. A front surface plate forming part of the right front housing cover has a lower side is inclined in an oblique downward direction toward the forward side, and is arranged along a virtual line that extends in an oblique downward direction through a front end portion of the first control valve and a front end portion of the signal control valve block.

Abstract: A working mechanism (4) takes a traveling stance by a way that left and right boom cylinders (9, 10) are expanded to rotate a tip end of a first boom (5) to the rear side and a positioning cylinder (11) is compressed to rotate a tip end of a second boom (6) to the lower side. In the traveling stance of the working mechanism (4), a front surface plate (23A) of a right front housing cover (23) is inclined along a tilting angle (?) of the left and right boom cylinders (9, 10), and the front surface plate (23A) of the right front housing cover (23) is arranged in a position of lining with front ends (9A1, 10A1) of tubes (9A, 10A) in the left-right direction forming the respective boom cylinders (9, 10).