An excavator machine includes an undercarriage assembly including a drive assembly, and a carriage assembly rotatably coupled to the undercarriage assembly and including an operator cab positioned at a front of the carriage assembly. The excavator machine also includes a boom assembly. The boom assembly is coupled to the carriage assembly via two branches, and the branches are coupled to the carriage assembly on opposing sides of the operator cab.

In one aspect, an implement adjustment assembly may include a lift arm pivotably coupled to a frame of a work vehicle at a first pivot joint and a bell crank pivotably coupled to the lift arm. Furthermore, the implement adjustment assembly may include a first actuator pivotably coupled to the frame of the work vehicle at a second pivot joint, with the first actuator further being pivotably coupled to the bell crank. The second pivot joint may be spaced apart from the first pivot joint by a first distance along a vertical direction of the work vehicle and by a second distance along a longitudinal direction of the work vehicle, with the first distance being at least one and half times greater than the second distance.

In one aspect, an implement adjustment assembly may include a lift arm pivotably coupled to a frame of a work vehicle at a first pivot joint and a bell crank pivotably coupled to the lift arm. Furthermore, the implement adjustment assembly may include a first actuator pivotably coupled to the frame of the work vehicle at a second pivot joint, with the first actuator further being pivotably coupled to the bell crank. The second pivot joint may be spaced apart from the first pivot joint by a first distance along a vertical direction of the work vehicle and by a second distance along a longitudinal direction of the work vehicle, with the first distance being at least one and half times greater than the second distance.

A skid-steer implement allows for the rotation of a tool attachment relative to the body of the skid-steer by coupling an attaching element and a rotation attachment device with a shaft and force generating devices. The slim construction of the device allows for bucket rotation while limiting the tipping load change caused by the extension of the implement.

A skid-steer implement allows for the rotation of a tool attachment relative to the body of the skid-steer by coupling an attaching element and a rotation attachment device with a shaft and force generating devices. The slim construction of the device allows for bucket rotation while limiting the tipping load change caused by the extension of the implement.

A pressure medium cylinder (1) for moving a toothed bar (3), comprising a toothed bar (3) on at least one side of which is formed a toothing (4). Inside the toothed bar (3), a cavity (6, 6a, 6b) is formed, extending to at least one end (7a, 7b) of the toothed bar. The pressure medium cylinder (1) further comprises a longitudinal structure (8, 8a, 8b), the longitudinal structure (8, 8a, 8b) and the toothed bar (3) being adapted movably in relation to each other, and the longitudinal structure (8, 8a, 8b) is adapted at least partly inside said cavity (6, 6a, 6b). The toothed bar (3) and longitudinal structure (8, 8a, 8b) are adapted in a sealed manner in relation to each other so that the toothed bar and the longitudinal structure are movable in relation to each other by the effect of a pressure medium.

A miniloader includes an articulated chassis, with a boom pivot device arranged on a front chassis part, a pivotable boom thereon including an upwardly extending first arm part which is fixedly arranged on the boom pivot device for pivoting of the boom relative to the chassis about a vertical boom pivot axis line during operation of the miniloader, a second arm part which with a first end is arranged on a free end of the first arm part and is pivotable relative thereto about a first horizontal pivot axis line between retracted and extended states, a coupling piece arranged pivotably about a second horizontal pivot axis line on a second end of the second arm part for coupling a tool thereto. In the retracted state of the second arm part, the second horizontal pivot axis line lies within the circumference of the front wheels.

An embodiment of the present invention relates to a construction machine. The construction machine, including a swing motor, a boom cylinder, and an arm cylinder, comprises: a main pump part including a first pump, which supplies hydraulic oil to the swing motor, and a second pump, which supplies the hydraulic oil to the boom cylinder and/or the arm cylinder; a manipulation part through which a boom priority operation or a rotation priority operation is selected so that either the first pump or the second pump is operated at the maximum value of a stored horsepower ratio; and a control part for controlling the performance of the other pump not selected by the manipulation part from among the first pump and the second pump.

An embodiment of the present invention relates to a construction machine. The construction machine, including a swing motor, a boom cylinder, and an arm cylinder, comprises: a main pump part including a first pump, which supplies hydraulic oil to the swing motor, and a second pump, which supplies the hydraulic oil to the boom cylinder and/or the arm cylinder; a manipulation part through which a boom priority operation or a rotation priority operation is selected so that either the first pump or the second pump is operated at the maximum value of a stored horsepower ratio; and a control part for controlling the performance of the other pump not selected by the manipulation part from among the first pump and the second pump.