SUMITOMO CONSTRUCTION MACHINERY CO., LTD.

A work machine includes a lower traveling body; an upper turning body; an attachment including an end attachment at a tip portion; a processor; and a memory that includes instructions, which when executed, cause the processor to execute acquiring, by a first acquisition part, information relating to a weight of an object held by the end attachment; calculating a loading amount of the object in a loading target by adding the weight of the object held by the end attachment, each time the object held by the end attachment is discharged, based on the information acquired by the first acquisition part; and cancelling the adding of the weight to the loading amount, in response to determining that a predetermined operation for discharging the object held by the end attachment is performed by the attachment and a position where the object is discharged does not correspond to the loading target.

A work machine includes a lower traveling body; an upper swing body configured to be swingably mounted on the lower traveling body; a hydraulic actuator; a hydraulic pump configured to supply hydraulic oil to the hydraulic actuator; a first control valve provided in a first oil passage connecting the hydraulic pump and a hydraulic oil tank; a second control valve provided in a second oil passage connecting the hydraulic pump and the hydraulic actuator; and a third control valve provided between the hydraulic pump and the second control valve in the second oil passage. The third control valve is configured to shut off the second oil passage when a load on a drive source is intentionally increased.

An excavator includes a lower traveling body; an upper slewing body that is slewably mounted on the lower traveling body; a boom that is attached to the upper slewing body; an arm that is attached to an end of the boom; an end attachment that is attached to an end of the arm; a tilt sensor configured to detect a tilt of the excavator; and a control part configured to control a height of the end attachment during slewing of the upper 10 slewing body, in accordance with a detection result obtained by the tilt sensor.

An excavator includes a lower travel body, an upper slewing body mounted on the lower travel body in a slewable manner, a sensor configured to detect an inclination of a machine body with respect to a horizontal plane, a display device installed inside a cabin provided in the upper slewing body, and a control device configured to cause the display device to display an icon image resembling a shape of the machine body as information regarding the inclination of the machine body when an operation mode is switched to a crane mode.

A work machine includes a lower traveling body; an upper slewing body that is slewably mounted on the lower traveling body; an attachment that is attached to the upper slewing body; an information acquisition device including circuitry configured to acquire payload information that is information of a weight of an object loaded by the attachment on a bed of a delivery vehicle; and a communication device including circuitry configured to transmit the payload information to a portable terminal device configured to enable wireless communication with the delivery vehicle.

A shovel includes a traveling lower body; a revolving upper body rotatably installed on the traveling lower body; an object detection device provided on the revolving upper body; a control device provided in the revolving upper body; and an actuator configured to move a driven object, wherein the object detection device is configured to detect an object in a detection space set in surroundings of the shovel, and wherein the control device is configured to allow a motion of the driven object in a direction other than a direction heading for the detected object.

An excavator management system includes an excavator configured to acquire state quantity information representing a state quantity of the excavator detected by a plurality of sensors; and a mobile terminal. The mobile terminal includes a communication control part configured to transmit, to the excavator, a request signal requesting the excavator to transmit the state quantity information.

A shovel includes a lower traveling body; an upper swinging body swingably mounted on the lower traveling body; an operator's cab mounted on the upper swinging body; a display device provided in the operator's cab; and a processor configured to cause the display device to display information about custom setting before a start of operation of the shovel.

A shovel includes a lower traveling structure, an upper swing structure swingably mounted on the lower traveling structure, an engine mounted on the upper swing structure, a hydraulic pump configured to be driven by the engine, and processing circuitry configured to determine a command value by energy saving control and to control a flow rate of hydraulic oil discharged by the hydraulic pump according to the command value. The processing circuitry is configured to control the command value.

A construction machine includes processing circuitry and a transmitter. The processing circuitry is configured to obtain information on a work area in an area surrounding the construction machine. The transmitter is configured to transmit the information obtained by the processing circuitry to another construction machine in the area surrounding the construction machine.