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Komatsu Ltd patents


Recent patent applications related to Komatsu Ltd. Komatsu Ltd is listed as an Agent/Assignee. Note: Komatsu Ltd may have other listings under different names/spellings. We're not affiliated with Komatsu Ltd, we're just tracking patents.

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Work vehicle

An operator's compartment is located above a climbing device and has a door. A sensing unit recognizes an operator. A door driving unit automatically opens the door in response the sensing unit sensing the operator.... Komatsu Ltd

Work vehicle

A climbing device body can assume by a rotation operation an erect, retracted position allowing a first end portion to be positioned above and a second end portion to be positioned below and a tilted, deployed position allowing the second end portion to be positioned sideways of the vehicular body... Komatsu Ltd

Display system of working machine and working machine

A display system of a working machine includes: a tilt sensor that detects a pitch angle and a roll angle of a working machine; a calculation unit that calculates a tilting position on polar coordinates that indicates a magnitude and a direction of tilt of the working machine based on... Komatsu Ltd

Method for producing metal member

The method for producing a metal member includes a step of preparing a first member made of a first metal and having a recessed portion formed therein, and a second member made of a second metal having a smaller deformation resistance than the first metal, and a step of joining... Komatsu Ltd

Chisel and steel for chisel

DI=7·(% C)1/2·(1+0.64·% Si)·(1+4.1·% Mn)·(1+2.83·% P)·(1−0.62·% S)·(1+2.33·% Cr)·(1+3.14·% Mo)  (1).... Komatsu Ltd

Method of generating image data

A method of generating image data includes moving a work implement out of an angle of view of an image pick-up apparatus, picking up an image of a work region where the work implement performs work with the image pick-up apparatus with the work implement having been moved out of... Komatsu Ltd

Egr apparatus and dump truck including the same

An EGR apparatus configured to circulate exhaust gas discharged from an exhaust manifold of an engine to an intake manifold of the engine includes: an EGR cooler disposed at a downstream side of the exhaust manifold and configured to cool the exhaust gas discharged from the exhaust manifold; a pair... Komatsu Ltd

Display system for work vehicle

A display system includes a work vehicle, a first camera, a computation device, and a display device. The first camera is attached to one side portion of the work vehicle. The first camera has an optical axis inclined downward with respect to a horizontal direction. The first camera captures a... Komatsu Ltd

Image pick-up apparatus

A first stereo camera has a first image pick-up portion and a second image pick-up portion arranged on the right side of the first image pick-up portion in a lateral direction of a vehicular main body. A second stereo camera has a third image pick-up portion and a fourth image... Komatsu Ltd

Periphery monitoring apparatus of operation machine and periphery monitoring operation machine

A periphery monitoring apparatus of an operation machine, includes an acquisition unit acquiring a peripheral condition of the operation machine; an information output unit outputting information acquired by the acquisition unit; a lifted/lowered state detection unit detecting a lifted/lowered state of a lifting ladder provided in the operation machine; and... Komatsu Ltd

Work vehicle

A stereo camera attached to a vehicular main body has a first image pick-up portion and a second image pick-up portion. An optical axis of the first image pick-up portion and an optical axis of the second image pick-up portion are inclined toward the work implement at angles different from... Komatsu Ltd

Method for producing metal member

The method includes a step of preparing a first member made of a first metal and a second member made of a second metal having a smaller deformation resistance than the first metal, and a step of joining the first member and the second member. The step of joining includes... Komatsu Ltd

Method for producing metal member

The method for producing a metal member includes a step of preparing a first member made of a first metal, a second member made of a second metal, and a third member made of a third metal, and a step of joining the first member and the second member via... Komatsu Ltd

Bulldozer

A bulldozer has a protective structure. The protective structure includes a left pillar portion, a right pillar portion, and a beam portion. The left pillar portion is disposed to the left of a cab and extends in the up-down direction. The right pillar portion is disposed to the right of... Komatsu Ltd

Control system of work machine, work machine, management system of work machine, and managing work machine

A control system is provided with a position detection device which detects a position of a work machine, a contactless sensor which detects an object around the work machine in a contactless manner, a position calculation unit which calculates a position of the work machine on the basis of at... Komatsu Ltd

Bulldozer

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... Komatsu Ltd

Operation device of work vehicle

An operation device includes a hold portion having a base end and a leading end, and an operation portion attached to the leading end of the hold portion. The operation portion includes a finger rest extending substantially along a direction in which the hold portion extends from the base end... Komatsu Ltd

Method for producing metal member

The method includes a step of preparing a first member made of a first metal and a second member made of a second metal having a smaller deformation resistance than the first metal, and a step of joining the first member and the second member. The step of joining includes... Komatsu Ltd

Tractor

A tractor includes a vehicle body, an engine, a cooling device, a fan, and a first exterior member. The engine is disposed on the front side of the vehicle body. The cooling device is disposed behind the engine. The fan is arranged to produce cooling air for the cooling device.... Komatsu Ltd

Work vehicle

A work vehicle includes a console box disposed to a side of an operator's seat, and a support including a rotational axis disposed in a left and right direction below the console box. The console box is configured to be rotatable in a forth and back direction. The support rotatably... Komatsu Ltd

Control system, work machine, and control method

A control system includes: first and second hydraulic pumps; an opening/closing device provided in a passage connecting the first and second hydraulic pumps and configured to open and close the passage; a control device controlling the opening/closing device to switch between connected and unconnected states of the first and second... Komatsu Ltd

Image pick-up apparatus

An image pick-up apparatus includes a first stereo camera attached to a revolving unit and a second stereo camera attached to the revolving unit. The first stereo camera picks up an image of a first image pick-up range. The second stereo camera picks up an image of a second image... Komatsu Ltd

Booster control device and controlling voltage of booster control device

A booster control device includes an output voltage detection unit that detects output voltage of a booster which changes the output voltage according to a phase difference; a storage battery voltage detection unit that detects storage battery voltage; and a booster control unit that performs feedback control on the output... Komatsu Ltd

Track link and manufacturing track link

A track link includes a tread surface, a shoe surface, a communicating part, and a seat formation part. The tread surface comes into contact with a roller for an undercarriage. The shoe surface is disposed on an opposite side from the tread surface. A track shoe is attachable to the... Komatsu Ltd

Crawler belt-type tractor

A crawler belt-type tractor includes a vehicle body, a travel device, an engine, and a fuel tank. The travel device is attached to the vehicle body. The travel device includes a crawler belt. The engine generates driving power for driving the travel device. The fuel tank is disposed in a... Komatsu Ltd

Working vehicle

A working vehicle includes a housing member in which fluid is housed, and a gauge that indicates a remaining amount of the fluid in the housing member. The gauge is disposed at a central portion of the housing member in a longitudinal direction.... Komatsu Ltd

Cab and work vehicle

A cab includes a dash panel disposed frontward of an operator's seat, and a monitor device disposed above the dash panel. The whole of the monitor device in the right-left direction overlaps a first front window when the monitor device is seen in the front-rear direction. The monitor device is... Komatsu Ltd

Wheel loader and automatically accumulating transport operation information of wheel loader

The wheel loader includes a boom, a bucket, a travel device, a travel distance measuring unit, a state determining unit, and an accumulating unit. The bucket is attached to the tip end of the boom. The travel distance measuring unit measures a travel distance. The state determining unit determines the... Komatsu Ltd

Image display system for work machine, remote operation system for work machine, and work machine

An image display system for a work machine includes an imaging device mounted to a work machine including a working unit having a working implement, an attitude detector detecting an attitude of the working unit, a distance detector determining information about distance to an object to be worked by the... Komatsu Ltd

Sliding component and producing the same

A sliding component and its producing method are provided. The sliding component includes a base section made of steel or cast iron, and a sliding section having a sliding surface, made of copper alloy including hard particles, and joined to the base section. The hard particles in the sliding section... Komatsu Ltd

Power transmission device and work vehicle provided with power transmission device

A power transmission device for a work vehicle includes a boss section, a spline shaft, a rotational force transmission section, and a housing. The boss section includes a spline groove on an internal circumferential surface thereof. The spline shaft fits to the spline groove. The rotational force transmission section is... Komatsu Ltd

Work vehicle and controlling work vehicle

An articulated work vehicle with linked front and rear frames includes a hydraulic actuator, a joystick lever operated by an operator, a control valve, a force imparting component, and a controller. The hydraulic actuator is driven hydraulically to change a steering angle of the front frame with respect to the... Komatsu Ltd

Vertically-movable steps for working vehicles

A ladder includes: a front connecting member and a rear connecting member at a top step, respective upper ends of which are connected to a lateral side of a vehicle body in a pivotally movable manner and are juxtaposed with a predetermined space therebetween in a vehicle front-back direction; a... Komatsu Ltd

Working machine

A work machine includes plural cameras, a display unit and a controller controlling the cameras and the display unit. The controller includes an overview image generator generating an overview image from the images by the cameras, an image superimposing unit superimposing a top view image of the work machine on... Komatsu Ltd

Work vehicle and controlling work vehicle

An articulated work vehicle with linked front and rear frames includes a joystick lever, a force imparting component, a speed sensor, and a controller. The joystick lever is configured to change a steering angle of the front frame with respect to the rear frame by operation by an operator. The... Komatsu Ltd

02/08/18 / #20180038067

Control system for work vehicle, control method, and work vehicle

A controller is configured to acquire current terrain information indicating the current terrain in the travel direction of a work vehicle. the controller is configured to generate an inclined virtual surface extending form the current position of the work vehicle. The controller is configured to decide the soil volume of... Komatsu Ltd

02/08/18 / #20180038068

Control system for work vehicle, control method, and work vehicle

A terrain information acquisition device acquires terrain information about a work site. A controller is configured to decide an inclination angle of the current terrain along a travel direction of the work vehicle from the terrain information. The controller is configured to decide a virtual design surface that is inclined... Komatsu Ltd

02/08/18 / #20180038069

Control system for work vehicle, control method, and work vehicle

A current terrain acquisition device acquires current terrain information indicating the current terrain to be worked. A controller is configured to decide a virtual design surface that is located below the current terrain and has an inclination angle. The controller is configured to generate a command signal to the work... Komatsu Ltd

02/08/18 / #20180038070

Control system for work vehicle, control method, and work vehicle

A current terrain acquisition device acquires current terrain information indicating a current terrain to be worked. A controller is configured to generate an inclined virtual surface extending from a current position of the work vehicle. The controller is configured to decide an estimated held soil volume of a work implement... Komatsu Ltd

02/08/18 / #20180038082

Control system for work vehicle, control method, and work vehicle

A current terrain acquisition device acquires current terrain information. The current terrain information indicates the current terrain to be worked, and includes the height of the current terrain at a plurality of points. A controller is configured to decide the smoothed height for each of the plurality of points. The... Komatsu Ltd

02/08/18 / #20180040174

Component information management system and component information management method

A parts information management system includes an identification device attached to a target part at an installation position and storing parts information for identifying the target part, a communication device communicating with the identification device to acquire the parts information, a transmitter transmitting acquisition information, and a management apparatus managing... Komatsu Ltd

02/01/18 / #20180029464

Tractor

A tractor includes an air cleaner and a passageway arranged to surround the air cleaner. Alternatively, tractor includes a maintenance equipment, an engine, a top plate covering the engine, and a floor section disposed at a position lower than the top plate and in a non-overlapping position with the engine... Komatsu Ltd

02/01/18 / #20180030691

Work vehicle and controlling operation

A work vehicle detects pressure of hydraulic oil supplied to an arm cylinder. The work vehicle determines operation details for an arm. The work vehicle includes a relief valve capable of setting a relief pressure of hydraulic oil in a hydraulic circuit at one of a first set pressure and... Komatsu Ltd

02/01/18 / #20180030692

Control system, work machine, and control method

A control system includes a cylinder pressure data acquisition unit that acquires cylinder pressure data indicating a pressure of operating oil of a hydraulic cylinder; an operation amount data acquisition unit that acquires operation amount data of an operating device; a pump flow rate calculation unit that calculates a first... Komatsu Ltd

01/18/18 / #20180016969

Hydraulic servo device and turbocharger

A hydraulic servo device includes: a servo piston configured to move in an axial direction with respect to a device main body; and a stroke sensor configured to detect an amount of movement of the servo piston with respect to the device main body. The hydraulic servo device is configured... Komatsu Ltd

01/11/18 / #20180010320

Work vehicle, monitoring system for work vehicle, and tracked work vehicle

A work vehicle includes a rotary member, a support member, a sealing ring, a pressure controller, and a vehicle speed determination component. The rotary member has a first hydraulic fluid supply channel to supply the hydraulic fluid to the steering clutch, and is rotated by power from the transmission when... Komatsu Ltd

01/04/18 / #20180002892

Work vehicle and ripper device

A ripper device includes a first cylinder, a shank, and an arm. The first cylinder includes a tube and a rod, and is disposed to extend and retract in the forward and backward direction in a plan view of the ripper device. The shank is disposed aligned with the first... Komatsu Ltd

01/04/18 / #20180002894

Control system for work vehicle, control method, and work vehicle

A control system for a work vehicle includes an acceleration detection device and a controller. The acceleration detection device detects an acceleration of the work vehicle. The controller determines whether the acceleration is greater than a first threshold and reduces the a vehicle speed when the acceleration continues to be... Komatsu Ltd

01/04/18 / #20180002901

Control system for work vehicle, control method, and work vehicle

A control system for a work vehicle includes at least one sensor, an operating device, and a controller. The operating device includes at least one operating member. The controller is programmed to control a work implement of the work vehicle based on signals from the at least one sensor and... Komatsu Ltd

12/28/17 / #20170370072

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... Komatsu Ltd

11/30/17 / #20170341915

Work vehicle and work vehicle control method

A method of controlling a work vehicle including a steering cylinder operating a steering wheel by hydraulic oil supplied thereto, a steering member receiving an input for operating the steering wheel, and a steering valve unit which is connected to the steering member and supplies the hydraulic oil to the... Komatsu Ltd

11/30/17 / #20170342678

Construction machine control system, construction machine, and construction machine control method

A construction machine control system includes: a target construction ground shape generation unit generating a target construction ground shape indicating a target shape of an excavation target; a tilting data calculation unit calculating tilting data of a bucket tilted about a tilting axis; a regulation point position data calculation unit... Komatsu Ltd

11/30/17 / #20170342679

Construction machine control system, construction machine, and construction machine control method

A construction machine control system includes: a target construction ground shape generation unit which generates a target construction ground shape indicating a target shape of an excavation target; a working device control instruction determination unit which outputs an instruction for driving the working device in a working device operation plane... Komatsu Ltd

11/30/17 / #20170342680

Work machine control system, work machine, and work machine control method

A work machine control system that controls a work machine including a working device having a working tool that rotates about a shaft line includes: a target construction shape generation unit that generates a target construction shape indicating a target shape of a construction target of the work machine; a... Komatsu Ltd

11/30/17 / #20170342687

Work machine control system, work machine, and work machine control method

A work machine control system that controls a work machine including a member that rotates about a shaft line includes a target construction shape generation unit that generates a target construction shape indicating a target shape of a construction target of the work machine; and a determination unit that outputs... Komatsu Ltd

11/23/17 / #20170335548

Work vehicle

Lift cylinder is attached to a center part of a vehicle body in a vehicle width direction. The lift cylinder causes a work implement to move up and down. A supporting member is attached to the center part of the vehicle body in the vehicle width direction and extends upward... Komatsu Ltd

11/23/17 / #20170335918

Cylinder rod

The cylinder rod of a hydraulic cylinder includes a body portion having a bar shape, and a head portion arranged at a longitudinal end of the body portion. The body portion has a coating formed on its outer peripheral surface. The coating includes, in terms of area ratio in cross... Komatsu Ltd

11/16/17 / #20170327046

Work vehicle

An access device is configured to be switched between a stored state in which an access member is stored in a vehicle body and a deployed state in which the access member is deployed. In the stored state, an exterior cover becomes a portion of the an exterior surface of... Komatsu Ltd

11/16/17 / #20170328029

Work vehicle and ripper device

A ripper device for a work vehicle includes a first cylinder, a shank, and a second cylinder. The shank is actuated by the first cylinder and is aligned with the first cylinder in plan view. The second cylinder includes a proximal end attached to the work vehicle and a distal... Komatsu Ltd

11/16/17 / #20170328253

Reducing agent supply device and controlling reducing agent supply device

A reduction-causing agent supply device includes a tank to store a reduction-causing agent, a pumping unit to pump the reduction-causing agent, a reduction-causing agent supply passage to supply the reduction-causing agent, an injection nozzle to inject the reduction-causing agent into an exhaust pipe, a drawing-back unit to draw the reduction-causing... Komatsu Ltd

11/09/17 / #20170321392

Work vehicle

A work vehicle includes a vehicle body, a travel device, a driving source, and a cooling device. The travel device is provided below the vehicle body. The driving source is disposed in a front part of the vehicle body. The driving source generates driving power for the travel device. The... Komatsu Ltd

11/09/17 / #20170321395

Posture calculation device of working machinery, posture calculation device of excavator, and working machinery

A posture calculation device of working machinery includes: a measuring device configured to detect an angle speed and acceleration; a posture angle calculation unit configured to obtain a posture angle of the working machinery from the detected angle speed and the detected acceleration; a first complementary filter to which a... Komatsu Ltd

11/02/17 / #20170313366

Operator's compartment of work machine, and work machine

A support member has a first wing plate and a second wing plate coupled to the first wing plate to be pivotable relative to the first wing plate. A fixing member fixes the first wing plate to an opening member from an external space external to an operator's compartment and... Komatsu Ltd

11/02/17 / #20170315553

Work machine management apparatus

A work machine management apparatus includes: a switchback point setting unit configured to set a plurality of switchback points of a work machine in a work place of a mine; a work point setting unit configured to set at least one work point of the work machine in the work... Komatsu Ltd

11/02/17 / #20170315561

Work machine management apparatus

A work machine management apparatus includes: a switchback point setting unit configured to set at least one switchback point of a work machine in a work place of a mine; a work point setting unit configured to set a plurality of work points of the work machine; a travel track... Komatsu Ltd

Patent Packs
10/26/17 / #20170305018

Surrounding monitoring device of work machine and monitoring surroundings of work machine

A surrounding monitoring device of a work machine includes: a display unit; a plurality of cameras acquiring a surrounding condition of the work machine; an image processing unit generating a bird's-eye image indicating the surrounding condition of the work machine on the basis of images imaged by the cameras; a... Komatsu Ltd

10/19/17 / #20170296947

Strainer device

A strainer device includes a strainer element; a first lid member that covers an upper opening of the strainer element; a second lid member that covers a lower opening of the strainer element and has a fitting hole in a portion surrounded by the strainer element; a delivery pipe protruding... Komatsu Ltd

10/19/17 / #20170298591

Wheel loader

A wheel loader includes: an operating state detecting unit detecting an operating state; a target setting unit setting a relationship between a target position of a working equipment and a travel distance of the wheel loader for the operating state detected by the operating state detecting unit; a travel distance... Komatsu Ltd

10/19/17 / #20170298595

Surrounding monitoring device for work machine

A surrounding monitoring device for a work machine including an work device on an upper swing body includes: a plurality of cameras configured to acquire a surrounding condition of the work machine; an image processing unit configured to generate a bird's-eye image based on images imaged by the plurality of... Komatsu Ltd

10/19/17 / #20170298992

System for acquiring identification information, and industrial vehicle

An identification device that is attached to a target component and stores identification information of the target component; and a first communication device and a second communication device that wirelessly communicate with the identification device. The second communication device holds and transmits the identification information acquired by the second communication... Komatsu Ltd

10/12/17 / #20170292247

Control system for work vehicle, control method and work vehicle

A control system for a work vehicle having a work implement includes a first operating lever for the work implement, a first operating member and a controller. The first operating member is provided on the first operating lever. The controller is configured to perform an automatic control of the work... Komatsu Ltd

10/12/17 / #20170294057

Identification information acquisition system and working vehicle

A identification information acquisition system provided in a working vehicle includes: a plurality of identification devices; and a plurality of communication devices that communicate with the plurality of identification devices. The plurality of communication devices include a first communication device and a second communication device, an operation of which is... Komatsu Ltd

10/12/17 / #20170294938

Communication system and work vehicle

A communication system provided to a working vehicle includes: an information receiving unit that communicates with identification devices and receives identification information; a first area information storage that stores first area information indicating an area where use of the information receiving unit is permitted; a comparing unit that compares the... Komatsu Ltd

10/05/17 / #20170282961

Work vehicle

A controller disables the motion of a steering cylinder brought about by a steering lever when an enabled state is selected via a lever switch and an instruction to start an engine is issued via a main switch.... Komatsu Ltd

10/05/17 / #20170284058

Cooling device and construction machine

A cooling device includes: an introduction pipe configured to introduce a charge air supercharged by a supercharger; a first aftercooler connected to the introduction pipe and configured to cool the charge air; a branch pipe branched from the introduction pipe; a second aftercooler connected to the branch pipe and configured... Komatsu Ltd

10/05/17 / #20170284066

Working vehicle

A working vehicle includes a vehicle main body to which a tire is mounted, an excavation member coupled to the vehicle main body on a front side of the vehicle main body and that includes an end part arranged on an outer side of the tire in a vehicle-width direction... Komatsu Ltd

10/05/17 / #20170284069

Surrounding monitoring device for work machine

A surrounding monitoring device for a work machine including a work device on an upper swing body includes: a plurality of cameras configured to acquire a surrounding condition of the work machine; an image processor configured to generate a bird's-eye image based on images imaged by the plurality of cameras;... Komatsu Ltd

10/05/17 / #20170284070

Control device for work machine, work machine, and controlling work machine

A control device for a work machine is a device for controlling a working unit of a work machine to excavate an object to be excavated. The control device includes a control unit for controlling the working unit to prevent a working implement of the working unit from crossing a... Komatsu Ltd

10/05/17 / #20170284071

Calibration system, work machine, and calibration method

A calibration system includes at least a pair of imaging devices in a work machine having a working unit that image an object; a position detector detecting a position of the working unit; and a processing unit that, by using first position information about a predetermined position of the working... Komatsu Ltd

10/05/17 / #20170284274

Dump truck

A dump truck includes: a vehicle body; a cooling fan (9A) disposed in front of the vehicle body in a travel direction; an engine (7) disposed behind the cooling fan (9A); a platform (8) covering the cooling fan (9A) and a top of the engine (7); an exhaust aftertreatment device... Komatsu Ltd

Patent Packs
10/05/17 / #20170285657

Control system for work machine, work machine, and control work machine

A control system for a work machine includes a non-contact sensor, a position output device, a correction position calculation unit, and a control device. The non-contact sensor detects a periphery of a work machine. The position output device determines a position of the work machine based on at least a... Komatsu Ltd

10/05/17 / #20170285658

Work vehicle control system

A work vehicle control system controls a work vehicle having a braking device. The work vehicle control system includes a location information generating unit that obtains and outputs a location of the work vehicle, and a control unit that controls the braking device based on location information of the work... Komatsu Ltd

10/05/17 / #20170287651

Capacitor and capacitor module

An object of the present invention is to provide a capacitor and a capacitor module having a long life and capable of a stable action. Therefore, an electrolytic solution L obtained by dissolving an electrolyte salt having a lower hydrolyzability and a higher reaction potential in an electrode than an... Komatsu Ltd

09/28/17 / #20170274762

Work vehicle

A work vehicle includes a front wheel, a rear wheel, a liquid tank, a front-wheel fender, a rear-wheel fender, a floor portion, and an electric-component room. The front wheel, the rear wheel, and the liquid tank are supported by a vehicle body. The front-wheel fender is disposed to surround a... Komatsu Ltd

09/28/17 / #20170274896

Work vehicle and controlling same

A control unit in a work vehicle executes an automatic downshift for shifting a transmission from a current speed range to a speed range that is lower than the current speed range when at least a first condition, a second condition, a third condition, and a fourth condition are satisfied.... Komatsu Ltd

09/28/17 / #20170276055

Hydraulic pump/motor with rotation detection mechanism

A hydraulic pump/motor includes a rotational shaft rotatably attached inside a casing, a cylinder block configured to rotate together with the rotational shaft, a plurality of pistons, a swash plate, a valve plate, and a rotation detection mechanism. The rotation detection mechanism includes a detection target section having three or... Komatsu Ltd

09/28/17 / #20170277163

Communication system and work vehicle

A communication system provided in a working vehicle includes: an identification device that stores identification information; a communication device that outputs electric waves to communicate with the identification device; an ambient temperature judging unit that judges whether or not an ambient temperature of the environment in which the identification device... Komatsu Ltd

09/28/17 / #20170278425

Evaluation apparatus and evaluation method

An evaluation apparatus includes a detected data acquisition unit that acquires photograph data of a bucket of a work equipment, a first display control unit that displays the photograph data on a display screen of a display device, a second display control unit that displays on the display screen a... Komatsu Ltd

09/28/17 / #20170280048

Evaluation device

An evaluation device includes a first display control unit that displays imaging data acquired by an imaging device on a display screen of a display device, and a second display control unit that displays on the display screen a guide display based on work vehicle data on a work vehicle... Komatsu Ltd

09/21/17 / #20170268198

Control system for work vehicle, control method, and work vehicle

A distance obtaining unit obtains the distance between a work implement and a design terrain. A work aspect determining unit determines a work aspect by the work implement. A limit velocity deciding unit limits the velocity of the work implement when the distance between the work implement and the design... Komatsu Ltd

09/21/17 / #20170268204

Control system for work vehicle, control method, and work vehicle

A control deciding unit for deciding to execute a leveling control for controlling a work implement so that the work implement moves along a design terrain when a leveling determination condition is satisfied. The control deciding unit decides to execute a surface compaction control for limiting the velocity of the... Komatsu Ltd

09/14/17 / #20170260714

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... Komatsu Ltd

09/14/17 / #20170260717

Work machine and correction working equipment parameter for work machine

A work machine includes: first working equipment with first working equipment parameter; second working equipment including a parallel link and being attachable to the first working equipment; a swing angle detector that detects swing angle information of the first working equipment; an attitude calculating unit that calculates an attitude of... Komatsu Ltd

09/07/17 / #20170255895

Evaluation device and evaluation method

An evaluation device includes a detection data acquisition unit that acquires detection data including a detected movement trajectory of a predetermined portion of a working unit of a working vehicle based on operation data of the working unit from a movement starting position to a movement ending position, detected by... Komatsu Ltd

08/31/17 / #20170247861

Work machine control device, work machine, and work machine control method

A control device includes a control unit configured to change a change rate of a moving speed of a working unit of a work machine according to the moving speed of the working unit in a timing of switching between intervention control toward the working unit and control of the... Komatsu Ltd

08/31/17 / #20170248439

Control system for work machine, work machine, and management system for work machine

A control system includes: a detector detecting a position of a work machine running on a running path; a non-contact sensor detecting an object at a side of the running path; a generator generating map data of a work site based on detection data from the detector and the non-contact... Komatsu Ltd

08/24/17 / #20170241106

Construction machine control system, construction machine, and controlling construction machine

A control system controls a construction machine that includes a work machine including a bucket having a plurality of tilting mechanisms. The control system includes: a tilt angle sensor that is provided in the bucket so as to detect tilt angle data including a rotation angle of the bucket about... Komatsu Ltd

08/24/17 / #20170241316

Work vehicle

The reducing agent tank has a tank main body and a feed pipe. The tank main body stores a reducing agent to be supplied to an exhaust gas treatment device. The feed pipe protrudes from the tank main body. The feed pipe is provided to replenish the tank main body... Komatsu Ltd

08/03/17 / #20170216949

Machine component and producing the same

A sprocket wheel, which is an example of the machine component, includes a base made of a first metal, and an overlay disposed in contact with the base to cover at least a part of a surface of the base. The overlay includes a matrix made of a second metal,... Komatsu Ltd

08/03/17 / #20170216950

Machine component and producing the same

A sprocket wheel, which is a machine component configured to slide relative to a bushing while being in contact with the bushing in an outer peripheral surface, includes a base made of a first metal, and an overlay that covers the base so as to constitute the outer peripheral surface.... Komatsu Ltd

08/03/17 / #20170216951

Wear-resistant component and producing the same

A tooth which is an example of a wear-resistant component includes a base made of a first metal, and an overlay disposed in contact with the base to cover a covered region that is a part of a surface of the base. In an overlay edge portion corresponding to a... Komatsu Ltd

08/03/17 / #20170216976

Machine component and producing the same

A sprocket wheel, which is an example of the machine component, includes a base made of a first metal, and an overlay disposed in contact with the base to cover at least a part of a surface of the base. The overlay includes a matrix made of a second metal,... Komatsu Ltd

08/03/17 / #20170217516

Sprocket wheel and producing the same

A sprocket wheel has an annular shape. The sprocket wheel has a plurality of projections formed on an outer peripheral surface for transmitting a driving force to a track. The sprocket wheel includes a base made of a first metal, and an overlay including a second metal that covers the... Komatsu Ltd

08/03/17 / #20170219053

Planetary gear type transmission

A first carrier rotates integrally with an input shaft. A third sun gear and a fourth sun gear rotate integrally with a first intermediate shaft. A third carrier rotates integrally with a second ring gear. A fourth carrier rotates integrally with a third ring gear, and outputs power. A first... Komatsu Ltd

08/03/17 / #20170220042

Work machine control system, work machine, and work machine management system

A work machine control system is configured to control a work machine that travels in an operation region and includes a position detection unit, a non-contact sensor, and a control unit. The position detection unit detects a position of the work machine. The non-contact sensor detects a position of an... Komatsu Ltd

08/03/17 / #20170220044

Work machine control system, work machine, and work machine management system

A work machine control system is configured to control a work machine that travels on a travel route and includes a position detection unit, a non-contact sensor, and a control unit. The position detection unit detects a position of the work machine. The non-contact sensor detects a position of an... Komatsu Ltd








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