Komatsu Corporation

Souichi Tsumura

Kei Nakano

Hiroki Yamamoto

Kazuki Kure

Kazuyuki Suzuki

Tetsunori Yamashita

Osamu Shimizu

Tsuyoshi Yoshida

Masahiro Ikeda

Shinji Mitsuta

Takashi Tsukamoto

Sueyoshi Nishimine

Shinya Nakamura

Atsuhito Kawahara

Yuta Nakagawa

Yasuhiro Kawamoto

Youhei Takahashi

Tomoki Andou

A controller acquires a target design surface, at least a portion of which is located above an actual topography. The controller acquires a position of a main body of a work machine. The controller acquires a position of a work implement. The controller causes the work machine to travel forward while controlling the work implement in accordance with the target design surface. The controller acquires a height difference between the target design surface and a predetermined portion of the main body. The controller determines whether there is any more earth held by the work implement based on the height difference.

System for controlling work machine, method, and work machine

An amount of information of data of a captured image displayed on a display unit is increased. A display control unit sets a plurality of divided display sections for a display unit. The display control unit sets a first camera group and a second camera group including one or more of a plurality of cameras. The first camera group captures an image of a work performed with a blade. The second camera group captures an image of a work performed with a ripper. The display control unit displays data of captured images output from cameras included in one of the first and second camera groups in a corresponding plurality of divided display sections.

Display system for work machine

A controller controls the steering device so as to cause a vehicle body to turn toward the left when a left steering lever is operated without a right steering lever being operated. The controller controls the steering device so as to cause the vehicle body to turn toward the right when the right steering lever is operated without the left steering lever being operated. The controller reduces the rotation speed of the engine when both the left steering lever and the right steering lever are operated and both the operation amount of the left steering lever and the operation amount of the right steering lever are equal to or greater than a first threshold.

Work vehicle and control method for work vehicle

When left and right steering levers are both operated and the operation amount of the left lever is larger than that of the right lever, a controller calculates a correction left operation amount of the left lever according to the operation amount of the right lever, and controls a left steering clutch so as to cause a vehicle body to turn toward the left in accordance with the correction left operation amount. When left and right steering levers are both operated and the operation amount of the right lever is larger than that of the left lever, the controller calculates a correction right operation amount of the right lever according to the operation amount of the left lever, and controls a right steering clutch so as to cause the vehicle body to turn toward the right in accordance with the correction right operation amount.

Provided is a bulldozer enabling the visibility of a rearward area of the bulldozer's body to be improved. The bulldozer includes a cab for an operator to be aboard, a fuel tank disposed rearward of the cab, and a work platform serving as a scaffold for an operator. A notch is formed at a front edge of the work platform.

Bulldozer

A first grille member extends from the left side of the vehicular body toward the right side. A second grille member extends from the first grille member further toward the right side. A first pivot shaft is provided at the left side of the vehicular body. The first pivot shaft extends in the top-bottom direction of the vehicular body and pivotably supports the first grille member. A second pivot shaft extends in parallel with the first pivot shaft and couples the second grille member to the first grille member so that the second grille member is pivotable with respect to the first grille member. A fan module is pivotable about a third pivot shaft provided at the left side of the vehicular body and extending in parallel with the first pivot shaft, and at least a part of the fan module is movable to an outside of the vehicular body.

There is provided a running device for track-laying vehicle, which can resolve a feeling of fear of falling height in a leading end portion of a crawler while relax a large impact when the crawler runs over a raised contact area. The running device includes a spring constant equalizing unit that equalizes an apparent spring constant of a second arm of lower track roller bogie device over a total length. The apparent spring constant is generated in maximum reverse camber of the crawler. The spring constant equalizing unit increases an oscillation angle &#x3b1; of the second arm that can abut on the first arm in the maximum reverse camber of the crawler such that the oscillation angle &#x3b1; of the second arm is larger than a crossing angle &#x3b2; of the connecting link. Desirably the increased maximum oscillation angle of the second arm is 1.3-2.0 times the crossing angle &#x3b2;.

Growing community of inventors

Hirakata, Japan

Souichi Tsumura