Patents Assigned to Kobelco Construction Machinery Co., Ltd.
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Patent number: 12127038Abstract: According to the remote operation system or a remote operation server 20 included in the remote operation system, when the “environment information control process” is performed, a data amount of environment data is reduced such that the reduction in the information amount of one or a plurality of low environment information factors is greater than the reduction in the information amount of one or a plurality of high environment information factors (meaning the reduction in the information amount of the environment information due to a change in the environment information factor). The environment information control process is performed by classifying the environment information factors into the high environment information factor and the low environment information factor according to a difference in the operation state.Type: GrantFiled: April 9, 2020Date of Patent: October 22, 2024Assignee: Kobelco Construction Machinery Co., Ltd.Inventors: Yusuke Funahara, Hitoshi Sasaki, Yoichiro Yamazaki
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Patent number: 12123175Abstract: A display mode of a picked-up image in a central image output device 2210 (specified image output device) is variably controlled so as to display all of respective specified portions PPL and PPR of a pair of pillars 4240L and 4240R configuring a cab 424 in the central image output device 2210 (specified image output device). The specified portions PPL and PPR are part of the pillars 4240L and 4240R overlapping a specified image region R that extends in a belt shape between left and right bezels 2210L and 2210R.Type: GrantFiled: January 7, 2021Date of Patent: October 22, 2024Assignee: Kobelco Construction Machinery Co., Ltd.Inventors: Masaki Otani, Yusuke Fujiwara, Seiji Saiki, Yoichiro Yamazaki
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Patent number: 12110654Abstract: An excavation data processing method includes: a first acquisition step of acquiring position data of a reference part of an excavating body, position data of a plurality of measuring parts with respect to the reference part in the excavating body, and data indicative of an excavation depth; a second acquisition step of acquiring inclination angle data of the plurality of measuring parts of the excavating body; a first deriving step of deriving a plurality of measurement positions as positions of the plurality of measuring parts from the reference part position data, the plurality of measuring part positions data and inclination angles data; a second deriving step of deriving an excavation bottom position by interpolation processing based on the plurality of measurement positions and the excavation depth; and an output step of outputting information of the excavation bottom position.Type: GrantFiled: July 6, 2020Date of Patent: October 8, 2024Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventor: Keisuke Kusakabe
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Patent number: 12104352Abstract: A compaction management system includes a position calculation unit that, when a bucket is pressed against a compaction target ground, calculates a position of the bucket, a rolling compaction force calculation unit that, when the bucket is pressed against the compaction target ground, calculates a rolling compaction force applied to the compaction target ground using the attitude of the machine body, the attitude of the attachment, a pressure of a cylinder, and dimensions of the attachment, a rolling compaction record creation unit that creates a rolling compaction record in which the position calculated by the position calculation unit is associated with the rolling compaction force calculated by the rolling compaction force calculation unit, and a storage control unit that causes a storage device to store the rolling compaction record created by the rolling compaction record creation unit.Type: GrantFiled: March 12, 2020Date of Patent: October 1, 2024Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Sho Fujiwara, Yusuke Kamimura, Yoichiro Yamazaki, Koji Yamashita, Daisuke Noda, Hideki Yoshihara
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Publication number: 20240318409Abstract: A system for detecting that the motion of an automatically operated work machine is abnormal includes: a target position acquisition unit that acquires target position information about a monitoring target part; an abnormal motion region setting unit that sets an abnormal motion region (Rab) based on the target position information; a current position acquisition unit that acquires a current position of the monitoring target part; and an abnormal motion judgment unit. The abnormal motion region (Rab) is set outside the area occupied by the monitoring target part when the monitoring target part is located at the target position. The abnormal motion judgment unit judges whether or not the current position is within the abnormal motion region (Rab).Type: ApplicationFiled: March 11, 2022Publication date: September 26, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Sho FUJIWARA, Yukihiro HOSO, Shingun KYU, Yoshiki MUNEMASA
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Publication number: 20240318406Abstract: Formed inside a housing of a slewing unit are: an upper outer space located outside a piston in the radial direction, and at least one supply passage that guides, inward in the radial direction, a lubricant that has passed through a lower space, an outer passage, and an upper outer space in this order, to the lubricant to a plurality of brake members located below the piston. The plurality of brake members are disposed above a speed reducer and receive pressing force from the piston to brake the rotation of a rotation shaft before the rotation is decelerated by the speed reducer.Type: ApplicationFiled: December 16, 2021Publication date: September 26, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Hidekazu IWASHITA, Kenichi TERAUCHI, Masatsugu HAMASAKI, Takamasa ABE, Yoshiki KAMON
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Publication number: 20240309612Abstract: A construction machine includes a relief valve that opens to limit a pressure of a pump discharge line that is a line between a main pump and a direction switching valve, a back pressure generation mechanism that is disposed on a return line that is a line connected to a tank and generates a back pressure in the return line, and an air bleed line that connects the relief valve and a portion downstream from the back pressure generation mechanism in the return line.Type: ApplicationFiled: June 20, 2022Publication date: September 19, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Hidenori TANAKA, Koji UEDA
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Patent number: 12091833Abstract: A work machine includes: a first posture detection device which detects a posture of an upper slewing body with respect to a lower travelling body; a second posture detection device which detects a posture of a blade; a laser beam receiver which is provided to the upper slewing body and can receive a laser beam emitted from a laser beam emitter; and a calculation unit which calculates a height position of a cutting edge of the blade with respect to a surface to be constructed. The calculation unit calculates the height position of the cutting edge of the blade with respect to the surface to be constructed based on a laser beam receiving position where the laser beam is received by the laser beam receiver, a posture of the upper slewing body with respect to the lower travelling body, and a posture of the blade.Type: GrantFiled: August 8, 2019Date of Patent: September 17, 2024Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Yusuke Kamimura, Yoichiro Yamazaki, Koji Yamashita, Daisuke Noda
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Publication number: 20240301652Abstract: A work machine includes: a reference posture setting part which sets a reference posture which is one of postures of a working device in a holding task; an estimative load determination part which determines, based on a load acquired by a load acquisition section, an estimative load of an object of a work estimated to be discharged at a position above a loading destination in a discharge task when a predetermined estimative load determinative criterion is satisfied; an output part which outputs an estimative result which is information about the estimative load determined by the estimative load determination part. The estimative load determinative criterion includes a criterion that a posture change amount representing a changed degree of the posture of the working device from the reference posture is equal to or larger than a predetermined change amount threshold for determination of the estimative load.Type: ApplicationFiled: October 16, 2020Publication date: September 12, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Toshiro UETA, Michio HIRAYAMA, Kazuomi ENDO
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Patent number: 12084835Abstract: A remote operation device and a remote operation system that can reduce or eliminate deviation of the position of an indicator image of a working unit such as a line image in an image with respect to the position of the working unit in a real space. In some case, because of a cause such as a communication failure, a position posture coordinate value of a working unit corresponding to captured image data in a work environment image deviates from a position posture coordinate value of the working unit estimated according to an operation form of a remote operation mechanism. In this case, a semitransparent indicator image Img2(?2) simulating a bucket is superimposed on a work environment image Img1(?2) in a position where the bucket is estimated to be originally present and deviating from an image region representing the bucket.Type: GrantFiled: November 30, 2020Date of Patent: September 10, 2024Assignees: Kobelco Construction Machinery Co., Ltd., Hiroshima UniversityInventors: Masaru Ito, Yuichi Kurita
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Patent number: 12077946Abstract: A construction machine capable of suppressing deterioration in work efficiency includes an angle detecting device that detects a relative angle between a lower travelling body and an upper slewing body, a travel lever that can be manipulated to make the lower travelling body travel, a display, a directional information generating unit that generates information related to a travelling direction of the lower travelling body based on a detected result of the angle detecting device, and a display controller. The display controller causes the display to display an arrow image indicating the travelling direction of the lower travelling body generated by the directional information generating unit when the travel lever is manipulated and does not permit the display to display the arrow image when the travel lever is not manipulated.Type: GrantFiled: January 16, 2019Date of Patent: September 3, 2024Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Masaru Ito, Hitoshi Sasaki, Seiji Saiki
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Patent number: 12077943Abstract: There is provided a system and the like capable of assisting remote operation of a work machine performed by a remote operator in such a way that contact between the work machine and an actual machine operator and other unfavorable situations can be avoided. Even in a situation in which a first evaluation result is affirmative and a work machine 40 can be remotely operated via a remote operation apparatus 20, but in a situation in which a second evaluation result is affirmative and it is highly probable that a worker carrying a portable terminal 60, such as an actual machine operator OP2, is so close to the work machine 40 or on the work machine 40 that short-range wireless communication between the work machine 40 and the portable terminal 60 is established, remote operation of the work machine 40 is inhibited.Type: GrantFiled: August 12, 2020Date of Patent: September 3, 2024Assignee: Kobelco Construction Machinery Co., Ltd.Inventors: Ryota Hama, Hitoshi Sasaki, Seiji Saiki, Yoichiro Yamazaki
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Publication number: 20240287769Abstract: A work machine system includes a lower travelling body, an upper slewing body slewably attached to an upper portion of the lower travelling body, an attachment having a bucket that is capable of holding a work object and is rotatably attached to the upper slewing body, and a controller. The controller controls the upper slewing body and the attachment so that the upper slewing body and the attachment perform a series of operations having a plurality of operation phases, detects an amount of the work object held by the bucket, sets a target amount that is a target of the amount of the work object, and specifies, as an abnormal phase, an operation phase in which the amount of the work object held by the bucket is smaller than the target amount.Type: ApplicationFiled: June 13, 2022Publication date: August 29, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Nobuhiro FUKUO, Koji YAMASHITA, Daisuke NODA
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Publication number: 20240290184Abstract: The intrusion detection system includes a GNSS sensor that acquires a position of a work machine at work in a work area, a LiDAR that is disposed outside the work area and acquires point cloud data indicating a distance up to an object located inside or outside the work area, a position calculation unit that calculates positions of respective points of the point cloud data, a specifying unit that specifies a portion corresponding to the work machine from the point cloud data as specific data, based on the position of the work machine and the positions of the respective points of the point cloud data, and a detection unit that detects that an object has entered the work area, based on the point cloud data excluding the specific data.Type: ApplicationFiled: March 8, 2022Publication date: August 29, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Yoshiki MUNEMASA, Yukihiro HOSO, Sho FUJIWARA, Shingun KYU
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Publication number: 20240279910Abstract: Provided is a worksite monitoring system that achieves suppression of a decrease in the work efficiency of a working machine. The worksite monitoring system includes: a camera that captures an image of a worksite; an object detection part that detects, on the basis of the image captured by the camera, a working machine in the worksite; a position acquisition part that acquires a position of the working machine detected by the object detection part; a type determination part that determines a type of the working machine detected by the object detection part; a working area setting part that sets a working area associated with the type determined by the type determination part for the working machine detected by the object detection part; and an unsafety state detection part that detects an unsafety state on the basis of the position of the working machine acquired by the position acquisition part and the working area set by the working area setting part.Type: ApplicationFiled: March 11, 2022Publication date: August 22, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Yukihiro HOSO, Sho FUJIWARA, Shingun KYU, Yoshiki MUNEMASA
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Publication number: 20240279908Abstract: A range where an object to be monitored is monitored is set appropriately. A monitoring system includes a work machine capable of being automatically operated, a work plan setting unit , a monitoring range setting unit, an object-to-be-monitored detection unit, and an entry determination unit. The work plan setting unit sets a work plan of the work machine. The monitoring range setting unit sets a first monitoring range around the work machine based on the work plan. The object-to-be-monitored detection unit detects the object to be monitored around the work machine. The entry determination unit determines whether the object to be monitored has entered the first monitoring range.Type: ApplicationFiled: March 3, 2022Publication date: August 22, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Shingun KYU, Sho FUJIWARA, Yukihiro HOSO, Yoshiki MUNEMASA
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Publication number: 20240279902Abstract: A construction machine is capable of preventing degradation in efficiency of excavation work while preventing an increase in excavation resistance in the excavation work. A controller of a construction machine determines an accommodation state of earth and sand accommodated in a bucket, and outputs a resistance reduction command signal that is a command signal for operating a work device such that the bucket is displaced in a resistance reduction direction that is a direction where excavation resistance acting on the bucket is capable of being reduced, in accordance with a result of determining the accommodation state.Type: ApplicationFiled: April 21, 2022Publication date: August 22, 2024Applicants: HIROSHIMA UNIVERSITY, KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Ryota HASHIMOTO, Yasuhiko SHIMAZU, Sho OKIMOTO
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Publication number: 20240278860Abstract: A coupling portion of a lower travelling body of a mobile crane is arranged such that, in plan view, a right front straight line, which passes through any point included in a front load receiving surface and through any point included in a right front load transmission surface, passes through a right front end roller or a point on the front side relative to the right front end roller and that a left front straight line, which passes through any point included in the front load receiving surface and through any point included in a left front load transmission surface, passes through a left front end roller or a point on the front side relative to the left front end roller.Type: ApplicationFiled: March 15, 2022Publication date: August 22, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Teppei MAEDO, Sho OKIMOTO, Yasuhiko SHIMAZU, Nobuhiro TAKAMATSU, Dairo MATSUI, Akira KOYAHATA
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Patent number: 12065809Abstract: A damage estimation device includes: an operation parameter reception unit that acquires an operation parameter related to an operation of a work machine; a damage estimation model storage unit that stores a damage estimation model constructed by machine learning using training data with the operation parameter as an input value and a damage parameter related to damage in a predetermined portion of the work machine as an output value; and a damage parameter estimation unit that estimates the damage parameter by inputting the operation parameter acquired by the operation parameter reception unit to the damage estimation model stored in the damage estimation model storage unit.Type: GrantFiled: January 16, 2020Date of Patent: August 20, 2024Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Takaaki Izuka, Koji Sumimoto, Katsuya Irieda
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Publication number: 20240270330Abstract: In a lower travelling body of a mobile crane, each of a right front coupling member and a right rear coupling member is arranged to change a relative position to one or both of a right crawler frame and a car body in order to reduce dimensions of the lower travelling body when it is transported. Each of a left front coupling member and a left rear coupling member is arranged to change a relative position to one or both of a left crawler frame and the car body in order to reduce dimensions of the lower travelling body when it is transported.Type: ApplicationFiled: March 15, 2022Publication date: August 15, 2024Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Sho OKIMOTO, Teppei MAEDO, Yasuhiko SHIMAZU