1251 patents
Page 10 of 63
Utility
Work vehicle with improved control valves controllers
4 Jul 23
A work vehicle, including: a plurality of control valves configured to selectively convey hydraulic fluid to a hydraulic machine, a plurality of controllers connected to said control valves, a terminal including a display screen displaying graphics associated with said valves, a setting button configured to selectively modify a connection between the control valves and the controllers, and modify graphics based on changes of the connection.
Jean-Louis Burnier
Filed: 8 Jun 20
Utility
Support Structure for Work Vehicle and Work Vehicle
29 Jun 23
A support structure includes a shroud having a substantially circular shape from a proximal end covering an outer periphery of a first surface of a heat exchanger to a distal end.
Hironori HIRAKAWA, Satoshi YAMAKI, Kiyoshi UEDA, Hiroshi FUJIWARA
Filed: 7 Oct 22
Utility
Work Machine
29 Jun 23
Achieved are reduction of noise which is caused by air intake sound of a pre-cleaner, improvement of rear viewability and rear visibility of an operator, and extension of a maintenance interval of the pre-cleaner.
Yuki Takano, Kiyoshi Ueda
Filed: 15 Mar 21
Utility
Working Machine
29 Jun 23
A working machine includes first and second traveling pumps, an acquirer to acquire the number of revolutions and the rotation direction of each of first and second traveling motors, a determiner to, based on the acquired number of revolutions and the acquired rotation direction, determine whether a machine body is in a straight traveling state or a turn traveling state, and a controller configured or programmed to, when switching from a first state allowing rotation speeds of the first and second traveling motors to increase up to a first maximum speed, to a second state allowing the rotation speeds to increase up to a second maximum speed higher than the first maximum speed, or vice versa, is performed, reduce an amount of hydraulic fluid supply from the pumps to the motors according to the straight traveling state or the turn traveling state of the machine body.
Kazuki UEDA, Keisuke NAITO, Ryota HAMAMOTO
Filed: 5 Dec 22
Utility
Working Machine
29 Jun 23
A working machine includes a prime mover, a rotation-speed operation actuator, a rotation detector, a hydraulic pump, a hydraulic unit, an operation valve capable of changing a pilot pressure of a pilot fluid supplied from the hydraulic pump to the hydraulic unit in accordance with an operation of an operation member, an actuation valve operating in accordance with a control signal and capable of changing a primary pressure as the pilot pressure of the pilot fluid supplied from the hydraulic pump to the operation valve, and a controller that outputs the control signal based on a difference between target and actual rotation speeds to the actuation valve to control an opening thereof.
Daiki ABE, Ryota HAMAMOTO, Yuya TANABE
Filed: 28 Nov 22
Utility
Work Vehicle and Control Method for Fan of Work Vehicle
29 Jun 23
A control method for a fan of a work vehicle includes supplying, when an engine is started, a first current to a solenoid of a variable relief valve such that the hydraulic fluid flows by a first flow rate, supplying, when a rotational speed of the engine becomes larger than a first rotational speed threshold value, a second current larger than the first current to the solenoid such that the hydraulic fluid flows by a second flow rate smaller than the first flow rate to reduce the rotational speed of the fan, and supplying, when the rotational speed of the engine becomes larger than a second rotational speed threshold value that is larger than the first rotational speed threshold value, a current to the solenoid to change the rotational speed of the fan, the current corresponding to a temperature of liquid flowing in the work vehicle.
Yuji FUKUDA, Hiroaki NAKAGAWA, Ryota HAMAMOTO, Yasuhiro NISHIDA, Daiki ABE
Filed: 16 Sep 22
Utility
Hydraulic System for Working Machine
29 Jun 23
A hydraulic system for a working machine includes a prime mover, a boom cylinder, a control valve, a first hydraulic pump to deliver pilot fluid to switch the control valve, a second hydraulic pump to deliver hydraulic fluid to activate the boom cylinder, a hydraulic controller configured or programmed to control the second hydraulic pump to set a load-sensing (LS) differential pressure, a first pilot fluid passage, a second pilot fluid passage branching off from the first pilot fluid passage and connected to the hydraulic controller, a solenoid valve to change a pilot pressure that is a pressure of the pilot fluid applied to the hydraulic controller, and a pressure compensator to increase the LS differential pressure as a temperature of the hydraulic fluid including the pilot fluid decreases.
Yuji FUKUDA
Filed: 30 Nov 22
Utility
Work Vehicle
29 Jun 23
There is provided a work vehicle including an oil outlet port and a partition part.
Tomonari TSUCHIDA, Ryoma IWASE, Tomoyuki TANAKA, Takahiro MATSUO, Hiroyuki AIKAWA
Filed: 15 Nov 22
Utility
Spark Ignition Type Engine
29 Jun 23
A spark ignition type engine adjusts a base lower limit value of a valve opening degree of an ISC valve to avoid excessive engine rotation that may occur when an increase correction by atmospheric pressure is performed.
Michisuke IGA
Filed: 9 Nov 22
Utility
Work Vehicle
29 Jun 23
There is provided a work vehicle including a partition wall to keep partition between a first space zone as part of an internal space of the transmission case in which a differential mechanism is located and a second space zone as part of the internal space which is adjacent to the first space zone.
Atsushi JINNAI, Tomonari TSUCHIDA, Ryoma IWASE, Tomoyuki TANAKA, Takahiro MATSUO, Hiroyuki AIKAWA, Atsuro HAYAMI, Keitaro MORINAGA, Yosui NISHIJIMA, Satoru NAGANO, Takuma HOKEGUCHI
Filed: 15 Nov 22
Utility
Spark Ignition Type Engine
29 Jun 23
A spark ignition type engine enabling engine startability to be favorable is provided.
Michisuke IGA, Kazuhiro TANAKA, Masanori HIROCHI, Yoshinori OYAMA
Filed: 9 Nov 22
Utility
Work Vehicle
29 Jun 23
A work vehicle includes: a vehicle body that travels; a boom attached to the vehicle body to be vertically swingable; a work tool mounted to a front portion of the boom; a first illumination lamp that is disposed in the vehicle body and emits an illumination light forward; a second illumination lamp that is disposed in the boom and emits an illumination light toward the work tool; and an illumination controller that controls the first illumination lamp and the second illumination lamp, the illumination controller executing a lighting restriction of automatically turning off or dimming the first illumination lamp while the second illumination lamp is turned on.
Hiroaki Iizuka, Daisuke Hashimoto, Shuichi Takeshita
Filed: 28 Dec 22
Utility
Agricultural Assistance System, Agricultural Machine, and Agricultural Assistance Apparatus
29 Jun 23
An agricultural assistance system includes a route creator to create, on a map representing an agricultural field, a travel route along which an agricultural machine travels, an input to receive input of a turn mode which is one of turn modes differing in terms of how a traveling device of the agricultural machine is driven, a position detector to detect a position of the agricultural machine, an automatic operation controller to perform automatic operation in which the automatic operation controller automatically causes the agricultural machine to travel and automatically steers the agricultural machine, and a turn mode changer to, during automatic operation of the agricultural machine, allow the input to receive input of another turn mode to change the turn mode, and output, to the automatic operation controller, a change command to cause the agricultural machine to turn in the other turn mode inputted via the input.
Kotaro YAMAGUCHI, Ken SAKUTA, Ryo KUBOSHIMA, Kuya KAIHORI
Filed: 2 Dec 22
Utility
Management Method for Water Treatment Device, Replacement Method for Water Treatment Member, and Life Expectancy Estimation Method for Water Treatment Member
29 Jun 23
A management method for a water treatment device that serves as a management method for water treatment equipment provided with a plurality of water treatment devices on each of which a plurality of water treatment members is mounted includes performing life expectancy estimation processing to estimate a life expectancy of each water treatment member based on history information of each water treatment member, the history information being updatable as needed, and performing external life expectancy homogenization processing to replace corresponding water treatment members with each other among a plurality of water treatment devices at a predetermined period so that other water treatment members each having a life expectancy within a predetermined range with respect to the life expectancy of each water treatment member estimated in the life expectancy estimation processing are mounted in an identical water treatment device.
Soichiro YATSUGI, Shinya NAGAE
Filed: 25 May 21
Utility
Agricultural Assistance System, Agricultural Machine, and Agricultural Assistance Apparatus
29 Jun 23
An agricultural assistance system includes an input to receive size information of a working device linked to an agricultural machine and job setting(s) for an agricultural job performed on an agricultural field, a route creator to create a travel route for the agricultural machine on a map representing the agricultural field based on the size information and the job setting(s), a status detector to detect a status of the agricultural job, a recorder to, when the agricultural job is interrupted, record interruption data including the size information, the job setting(s), and a result of detection by the status detector associated with identification information of the working device, and a notifier to, if the size information is changed during interruption of the agricultural job, provide a notification indicating that the size information has been changed, when the agricultural job is to be resumed based on the interruption data.
Ken SAKUTA, Fumiya YOSHIMURA, Masaya TATESHIMA, Ryo KUBOSHIMA
Filed: 5 Dec 22
Utility
Piping Diagram Creation Method and Piping Diagram Creation Device
29 Jun 23
A piping diagram creation device is provided configured to: generate virtual pipelines, the virtual pipelines being identified by characteristic evaluation data expressed as a sequence of numbers with an assembling angle θi of assembling portions of the respective straight pipes and cut pipes allocated between respective intersections, and an adjustment margin Lj of the cut pipe length as variables; calculate an evaluation value of each virtual pipeline based on a difference value and so on between the total number of intersections and control points and the number of intersections and control points having an error between the virtual pipeline and each intersection and between the virtual pipeline and each control point at or below a predetermined threshold, the latter number being a continuous count from the start point; and generate a pipeline assembling diagram based on one virtual pipeline with an excellent evaluation value.
Shimpei TAKAHASHI, Mitsuo HAYASHI, Seiki MITSUMORI
Filed: 2 Jun 21
Utility
Agricultural Machine and Agricultural Assistance System
29 Jun 23
An agricultural machine includes a traveling vehicle body, a position detector to detect a position of the traveling vehicle body, a lifting device to link a working device to the traveling vehicle body, and an automatic operation controller to perform an automatic operation to cause the traveling vehicle body to travel and cause the working device to perform an agricultural job based on a travel route and the position of the traveling vehicle body.
Takanori MORIMOTO, Kotaro YAMAGUCHI, Ryota KIKUCHI, Kuya KAIHORI
Filed: 6 Dec 22
Utility
Work Vehicle Specification Change System, Work Vehicle Specification Change Method, and Work Vehicle Specification Change Program
29 Jun 23
A work vehicle specification change system includes an information input to receive a specification change request in a free text format to change a specification of an in-vehicle device of a work vehicle, the specification change request being sent from an operation device on which an input operation is performed by a user driving the work vehicle, a specification update information generator to generate specification update information, based on the specification change request in a free text format, and an information output to transmit the specification update information to the work vehicle.
Yushi MATSUZAKI
Filed: 19 May 21
Utility
Work Machine
29 Jun 23
A work machine includes an exhaust pipe and an outside air mixing cylinder including a guiding cylinder section and an expanding cylinder section, the guiding cylinder section including an exhaust gas guide path to guide exhaust gas from a downstream end of the exhaust pipe in a discharge direction of the exhaust pipe, the expanding cylinder section including a structure with a cross-sectional area of a flow path thereof that becomes larger in diameter to cause a Coanda effect on the exhaust gas so that the exhaust gas follows an inner surface of the expanding cylinder section.
Ryosuke TANAKA, Naoya OKAMOTO, Katsumi YANAGIHARA, Nobuki DAIMON, Yuta TSUJIMOTO
Filed: 30 Nov 22
Utility
Hybrid System
29 Jun 23
Kazuaki KOYAMA, Ryota KIMURA, Koichi FUNAKI, Yasuo FUJII, Tamotsu KUNO
Filed: 22 Oct 21