525 patents
Page 3 of 27
Utility
Agricultural field work vehicle
3 Oct 23
There is provided an agricultural field work vehicle capable of entering a work travel path intended by the driver in transition from manual turn travel to autonomous work travel.
Junichi Yuasa, Yushi Matsuzaki, Shinnosuke Ishikawa
Filed: 13 Sep 19
Utility
Control valve of hydraulic system for working machine
26 Sep 23
A control valve of hydraulic system for a working machine is provided, which includes a main body and a spool.
Yuji Fukuda, Keigo Honda
Filed: 6 Jun 22
Utility
Work vehicle
26 Sep 23
A work vehicle includes a vehicle body, a plurality of traveling devices disposed on the right and left sides on the front and rear sides of the vehicle body respectively, a plurality of bending link mechanisms configured to liftably support each one of the traveling devices to the vehicle body and a plurality of drive operating devices capable of changing the posture of each one of the plurality of bending link mechanisms.
Junichi Ishikawa, Minoru Hiraoka
Filed: 25 Dec 18
Utility
Working machine
26 Sep 23
A working machine is provided, which includes a prime mover, a first traveling pump driven by power of the prime mover to supply operation fluid through a connector fluid tube, a traveling motor including first and second ports connected to the connector fluid tube, the traveling motor configured to be switched in a first speed and a second speed higher than the first speed, a first pressure detector to detect first traveling-pump pressure near the first port, a second pressure detector to detect second traveling-pump pressure near the second port, and a controller configured, with the traveling motor switched in the second speed, to automatically shift down the traveling motor from the second speed to the first speed, when a differential pressure between the first traveling-pump pressure and the second traveling-pump is equal to or more than a deceleration threshold.
Yuji Fukuda, Jun Tomita, Ryota Hamamoto, Ryosuke Kinugawa, Yoshimitsu Tanaka
Filed: 13 Jun 22
Utility
Hydraulic system for working machine, and working machine
26 Sep 23
A hydraulic system for a working machine includes a traveling motor to output power to a traveling device in the working machine, a first detector to detect a physical quantity that changes in accordance with a traveling state of the working machine and that is detected at intervals of a predetermined period, and a controller to execute automatic shift-down to automatically reduce a rotational speed of the traveling motor to a first speed stage when the rotational speed of the traveling motor is in a second speed stage higher than the first speed stage.
Kohei Nagao, Yuji Fukuda, Ryota Hamamoto
Filed: 15 Jun 22
Utility
Spark ignition type engine
26 Sep 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
Stand for charger
26 Sep 23
A stand for a charger includes an attachment portion attachable and detachable to and from the charger and a leg portion configured to be capable of supporting the charger with the charger being lifted up off the ground surface when the stand is attached to the charger.
Hirokazu Ito, Tomohiko Hisakuni
Filed: 3 Jun 21
Utility
Tractor and working vehicle
19 Sep 23
A tractor includes: a driver seat on which a driver can sit; a hood 5 provided in front of the driver seat; and an antenna unit that receives satellite positioning information.
Kumiko Kobayashi, Misako Kawai, Kunihiko Nishino, Yasuaki Morioka, Shunsuke Miyashita, Yuki Kubota, Manabu Togo, Kenichi Iwami, Hiroki Suga, Toru Tambo
Filed: 14 Dec 18
Utility
Work vehicle
19 Sep 23
A work vehicle includes a fender covering a rear wheel, a seat base to which the fender is fixed and on which a seat is installed, a step above or below the seat base and to which the seat base is fixed, and a first vibration insulating portion having a vibration insulating property and interposed between the step and the seat base.
Shigeo Shoen, Kazuya Kiyama, Ryosuke Tanaka
Filed: 21 Jun 21
Utility
Hydraulic system for working machine
12 Sep 23
In a hydraulic system for a working machine, a controller is configured or programmed to increase an output-port pressure of one activation valve for one hydraulic device and an output-port pressure of another activation valve for another hydraulic device to a normal pressure higher than a preloading pressure from a state where the output-port pressure of the one activation valve is equal to the preloading pressure and the output-port pressure of the other activation valve is lower than the preloading pressure, by causing the output-port pressure of the one activation valve to be lower than the preloading pressure and increasing the output-port pressure of the other activation valve to the normal pressure.
Yuji Fukuda, Ryota Hamamoto, Jun Tomita, Yuya Konishi
Filed: 15 Jun 22
Utility
Movement assisting tool
12 Sep 23
A movement assisting tool (23) includes an attachment portion (24) that can be attached to and removed from a main body portion (11) of a battery unit (4), leg portions (25) that are coupled to the attachment portion (24) and extend from the attachment portion (24), and moving wheels (26) that are supported by extension portions of the leg portions (25).
Kazutomo Miyaguchi, Hirokazu Ito
Filed: 4 Jun 21
Utility
Working vehicle
12 Sep 23
A working vehicle includes a vehicle body, a cabin on the vehicle body, a clutch pedal in the cabin, a clutch on the vehicle body, a clutch operator to engage and disengage the clutch, a linkage including first and second ends, the first end being connected to the clutch operator, and a linkage lock to interlock the clutch pedal with the second end of the linkage so that vibrations of the cabin are reduced or prevented from being transmitted to the clutch.
Takuya Tanigawa, Kenichi Aoyama, Michitaka Tanaka, Hitoshi Omachi, Megumi Sawai, Daisuke Inaba
Filed: 21 Apr 21
Utility
Gear transmission
12 Sep 23
A detent mechanism 70 is provided for fixing a shift drum 58 in position at a rotation operation position where shift gears 36, 37 become engageable.
Yusuke Morita, Toshifumi Yasuda
Filed: 5 May 21
Utility
PTO shaft driving device in working machine
5 Sep 23
A PTO shaft driving device in a working machine, includes a parking switch to detect parking of a vehicle body, a first switch located on a manipulator located on the vehicle body to output a PTO shaft control command that is either a driving command to drive a PTO shaft located on the vehicle body or a stopping command to stop the PTO shaft, a second switch located at a position different from the manipulator to output a PTO shaft control command that is either a driving command to drive the PTO shaft or a stopping command to stop the PTO shaft, a first permission switch to selectively permit or prohibit a stationary work when the parking switch detects the parking, and a controller configured or programmed to control driving of the PTO shaft.
Keiji Takahashi, Tatsuya Sakai, Tsuyoshi Gono, Norita Tottori
Filed: 25 Jun 21
Utility
Work vehicle
5 Sep 23
A work vehicle includes a transmission case including an injection port to allow injection of transmission oil, a floor mat above the transmission case and near a driver's seat, the floor mat including an opening/closing portion to be opened in an open state in which the injection port is exposed and to be closed in a closed state in which the injection port is covered, and a fixing portion to fix the opening/closing portion in the closed state, in which the opening/closing portion includes a protrusion protruding in a predetermined direction, and the fixing portion includes a hole configured to fix the opening/closing portion when the protrusion is inserted into the hole.
Shigeo Shoen, Maho Yamanaka, Yukari Fujii
Filed: 21 Jun 21
Utility
Work vehicle, control device for work vehicle, and state determination method for work vehicle
5 Sep 23
A state determination method for a work vehicle includes detecting a rotation speed of an engine of the work vehicle during a first predetermined time period.
Jun Tomita, Tsutomu Aizawa
Filed: 15 Feb 23
Utility
Pipe joint, push ring for pipe joint, method for joining pipes
5 Sep 23
A pipe joint in which a seal body and a spacer are mounted from the insides of pipes, wherein: a spigot of one pipe is inserted into a socket of the other pipe; and an annular accommodation space is formed between the inner circumference of the socket and the outer circumference of the spigot.
Shozo Kishi, Kazuya Ito, Kazuma Harada, Keita Oda, Ryunosuke Tanaka, Kohei Ikeda, Yuito Komaru
Filed: 19 Mar 19
Utility
Agricultural field management system, and agricultural field management method
5 Sep 23
An agricultural field management system includes a plurality of communication devices arranged in an agricultural field and configured to detect a physical quantity indicating dynamic movement of objects, a dispatcher arranged in the agricultural field and configured to communicate with each of the communication devices, a management apparatus configured to move in the agricultural field.
Shuya Kaechi
Filed: 22 Jun 21
Utility
Autonomous traveling work vehicle and field management system
5 Sep 23
An autonomous traveling work vehicle includes a traveling vehicle body, a positioning device mounted on the traveling vehicle body and configured to acquire self-vehicle position information indicative of a self-vehicle position, a work device for effecting a work for a field, a determining device for determining a condition of at least either one of the traveling vehicle body and the work device during traveling of the traveling vehicle body, an abnormality detection section for detecting abnormality in the field based on determination data determined by the determining device, and an abnormality information outputting section for outputting, as abnormality information, the self-position information in the case of detection of abnormality by the abnormality detection section.
Katsuhiko Uemura, Kanako Komori
Filed: 7 Jun 18
Utility
Work vehicle
22 Aug 23
A work vehicle includes a lifting mechanism to control at least one of a height and a posture of a work machine connected to the work vehicle.
Tetsuo Yamaguchi, Takudai Matsuda
Filed: 11 Feb 21