Komatsu Corporation

Minetaka Nishimura

Yuki Shimano

Takuya Sonoda

A work machine includes: a work implement including a bucket; a bucket position obtaining unit that obtains a position of the bucket; a distance calculating unit that calculates a distance between the position of the bucket obtained by the bucket position obtaining unit and a design topography of an execution object; and a recording unit that records existing topography data corresponding to the position of the bucket, based on the distance calculated by the distance calculating unit.

Work machine, method for controlling work machine, and execution management device

A work machine includes: a boom; a dipper stick attached to a distal end of the boom; a bucket attached to a distal end of the dipper stick; and a loading determination unit configured to determine that an operation of the work machine is a loading operation for loading an excavated matter into a loading target under a condition that the bucket moves across a reference level.

Work machine and method for controlling the same

A controller obtains a load value within a bucket when a work implement has a basic attitude, as a reference value, and a load value, within the bucket when the work implement has an attitude different from the basic attitude, as a comparison value. The controller generates correction data according to an attitude of the work implement beforehand, based on the reference value and the comparison value. The controller senses a current attitude of the work implement, and calculates a correction amount of a load value within the bucket when the work implement has the current attitude, based on the correction data. The controller corrects a load value within the bucket when the work implement has the current attitude using the correction amount, and obtains a corrected load value.

Work machine, system including work machine, and method for controlling work machine

A hydraulic excavator has a boom, an arm, a bucket, and a boom cylinder which drives the boom. A load value within the bucket is computed based on a load of the boom cylinder, and the load value obtained by computing is corrected based on an acceleration of extension/retraction of the boom cylinder.

Work machine and method for controlling work machine

A hydraulic excavator includes an upper revolving unit revolvably mounted on a lower traveling unit. A counterweight is disposed on a rear end part of the upper revolving unit. A first GNSS antenna supporting part is configured to support a first GNSS antenna. The first GNSS antenna supporting part is disposed in front of the counterweight on the upper revolving unit.

Hydraulic excavator

A hydraulic excavator includes an upper revolving unit revolvably mounted on a lower traveling unit. A counterweight is disposed on a rear end part of the upper revolving unit. A structure is disposed in front of the counterweight on the upper revolving unit. An upper surface of the structure has a substantially flat area. A first antenna supporting part is configured to support a first antenna. A second antenna supporting part is configured to support a second antenna. Each of the first and second antenna supporting parts is disposed above the substantially flat area of the upper surface of the structure.

A hydraulic excavator includes a revolving unit revolvably mounted on a traveling unit. A counterweight is disposed on a rear end part of the revolving unit. An engine compartment is disposed in front of the counterweight on the revolving unit. An equipment compartment is disposed in front of the engine compartment on the revolving unit. A Global Navigation Satellite System (GNSS) antenna supporting part is fixed on the equipment compartment.

A GNSS antenna device includes an antenna supporting part supported by a handrail disposed on an upper surface of a body of a work vehicle. A GNSS antenna is disposed on a top portion of the antenna supporting part.

A hydraulic excavator includes a lower traveling unit, an upper revolving unit revolvably mounted on the lower traveling unit, a counterweight disposed on a rear end part of the upper revolving unit, an engine compartment disposed in front of the counterweight on the upper revolving unit, a cab disposed in front of the engine compartment on the upper revolving unit, an equipment compartment disposed between the engine compartment and the cab on the upper revolving unit, a pair of handrails and a pair of antenna supporting parts. The pair of handrails is disposed on the equipment compartment. The pair of antenna supporting parts is configured to support a pair of antennas. At least a portion of the pair of antenna supporting parts is disposed above the engine compartment. The pair of antenna supporting parts is connected to the pair of handrails.

A hydraulic excavator basically includes a lower traveling unit, an upper revolving unit, a counterweight, a machine compartment, a first handrail, a second handrail and a pair of antenna supporting parts. The upper revolving unit is revolvably mounted on the lower traveling unit. The counterweight is disposed on the upper revolving unit. The machine compartment is disposed in front of the counterweight on the upper revolving unit. The first and second handrails are disposed on the machine compartment. The antenna supporting parts are configured to support a pair of antennas. The antenna supporting parts are respectively connected to the first and second handrails.

A hydraulic excavator basically includes a counterweight, an engine compartment, an equipment compartment, a cab, a plurality of steps, a passage and a pair of antenna supporting parts for supporting a pair of GNSS antennas, respectively. The antenna supporting parts are positioned &#xbc; or more of the vehicle width away from the revolving center and are positioned closer to the revolving center than a left rear edge of the passage. The left rear edge of the passage is the position furthest away from the revolving center of the steps and the passage.

Growing community of inventors

Hirakata, Japan

Minetaka Nishimura