686 patents
Utility
Work Vehicle
18 Jan 24
A work vehicle includes: a body 1; a plurality of travel wheels 2 at front and back portions of the body 1 on each of left and right sides; a plurality of holder mechanisms A held by the body 1 and holding the respective travel wheels 2 in such a manner as to be capable of moving the travel wheels 2 independently of one another relative to the body 1; a detector B configured to detect a state of a travel surface; and a controller C configured to, based on the state that the detector B has detected, control the holder mechanisms A to move the travel wheels 2 relative to the body 1.
Yusuke Ida, Minoru Hiraoka, Junichi Ishikawa, Shunya Takase
Filed: 1 Dec 21
Utility
Ring Body, Pipe Fitting, and Method for Joining Pipes
18 Jan 24
A ring body to be provided in a pipe joint which can prevent a spigot from separating from a socket by a spigot protrusion engaging with a lock ring from the back side of the socket in the separation direction A of the spigot.
Shozo KISHI, Keita ODA, Ryunosuke TANAKA
Filed: 5 Oct 20
Utility
Transmembrane Pressure Difference Inference Device and Diffused Air Amount Control Device
18 Jan 24
To appropriately infer changes over time in transmembrane pressure to perform an appropriate membrane filtration operation, without being bound by typical approach regarding the diffused air volume control.
Hiroyuki Kobayashi, Nobukazu Suzuki
Filed: 9 Dec 21
Utility
Work Management Device and Work Management Method
11 Jan 24
It is possible to precisely manage a task in operation by precisely inferring the task with use of a trained model that is constructed by machine learning.
Yasushi IDOMOTO, Hayato KAGEYAMA, Kazuya ITO, Kazuma HARADA
Filed: 29 Nov 21
Utility
Injector Control Device
11 Jan 24
Yasushi KOBAYASHI, Shingo MATSUNOBU, Kiichi SUEHIRO, Naotaro NAGAI
Filed: 21 Feb 22
Utility
Work Vehicle, Control Device for Work Vehicle, and Control Method for Work Vehicle
4 Jan 24
A control method for a work vehicle includes acquiring an upper limit speed in a creep mode in which the work vehicle travels at the upper limit speed or less regardless of an operation amount of at least one operation device, detecting a hydraulic pressure in an oil passage between a hydraulic motor to move the work vehicle and a hydraulic pump to actuate the hydraulic motor, determining a traveling primary pressure of pilot oil supplied to an operation valve operated by a first operation device out of the at least one operation device based on a first relationship among the upper limit speed, the hydraulic pressure, and the traveling primary pressure, and controlling a control valve via which the pilot oil is supplied to the operation valve such that a pressure of the pilot oil supplied to the operation valve approaches the traveling primary pressure.
Daiki ABE, Ryota HAMAMOTO
Filed: 30 Mar 23
Utility
Work Machine
28 Dec 23
A work machine includes an engine, a hydraulic pump, a work apparatus driver to receive a pressurized fluid, a hydraulic circuit connecting the hydraulic pump with the work apparatus driver, a control valve in the hydraulic circuit, a relief valve connected to a first portion upstream of the control valve, a drain path connected to a second portion upstream of the first portion, an on-off valve to open and close the drain path, and a controller to control the on-off valve based on a state of the engine.
Naoya OKAMOTO
Filed: 26 May 23
Utility
Work Vehicle
28 Dec 23
A work vehicle includes: an engine bonnet in a front section of a body of the work vehicle and forming an engine compartment, the engine bonnet being swingably openable and closable in an up-down direction of the body with an opening and closing axis extending in a width direction of the body in a rear section of the engine bonnet as a swing fulcrum; and a front guard covering a front portion of the engine bonnet and including a lower guard section fixedly supported by a body frame and an upper guard section supported by the lower guard section.
Shunsuke SONODA
Filed: 18 May 23
Utility
Work Vehicle
28 Dec 23
A work vehicle includes: a body 1; a plurality of travel wheels 2 at front and back portions of the body 1 on each of left and right sides; a plurality of holder mechanisms A held by the body 1 and holding the respective travel wheels 2 in such a manner as to be capable of moving the travel wheels 2 independently of one another relative to the body 1; and a plurality of crawler travel devices E attachable to and detachable from the respective holder mechanisms A.
Minoru Hiraoka, Tomoyoshi Sakano, Junichi Ishikawa
Filed: 1 Dec 21
Utility
Swiveling Work Machine and Method for Detecting Orientation of Swiveling Work Machine
28 Dec 23
A swiveling work machine includes: a swivel base rotatable about a swivel axis extending in an up-down direction; a working device provided on the swivel base; a position detector provided on the swivel base to detect a position; and a calculator to calculate an orientation of the swivel base based on a detected position which is the position detected by the position detector, in which the calculator is configured or programmed to calculate an axis position which is a position of the swivel axis based on a plurality of the detected positions obtained during rotation of the swivel base about the swivel axis, and calculate the orientation of the swivel base, based on the axis position and the detected position.
Junichi YUASA
Filed: 12 Jun 23
Utility
Work Vehicle
28 Dec 23
A work vehicle including: a transmission configured to receive motive power input from a motive power source, and shift and output the input motive power to a travel device; a transmission case housing the transmission; and a gear pair disposed in the transmission, in a bottom section of an internal space of the transmission case, and including (i) a first power transmission gear configured to rotate about a first rotation axis, and (ii) a second power transmission gear configured to mesh with the first power transmission gear and rotate about a second rotation axis that is parallel with the first rotation axis.
Tomonari TSUCHIDA, Tomoyuki TANAKA, Takahiro MATSUO, Hiroyuki AIKAWA, Kazuhiro WADA
Filed: 21 Apr 23
Utility
Work Vehicle
21 Dec 23
Atsushi JINNAI, Ryoma IWASE, Yusuke NABANA, Rikuto ARAKI, Makoto KUBOTA
Filed: 25 May 23
Utility
Support System for Working Vehicle
21 Dec 23
A support system for a working vehicle includes a working vehicle including a vehicle body to travel selectively under manual steering or automatic steering, a controller, and a communicator, the controller is configured or programmed to define a planned travel line for and control the automatic steering based on a reference line, the communicator receiving a replacement line for replacing the reference line, and a server to transmit the replacement line to the communicator.
Yuki KUBOTA, Yoshiaki HIRUTA, Tsuyoshi GONO, Ryosuke KINUGAWA
Filed: 23 May 23
Utility
Pipe Joint, Gland, and Method for Joining Pipes
14 Dec 23
A pipe joint is provided in which a seal member insertion space 14 is formed between a first tapered surface 8 of a socket 5 and an outer circumference of a spigot 3, a seal member 15 is inserted into the seal member insertion space 14, and a gland 17 that presses the seal member 15 into the seal member insertion space 14 is externally fitted to the spigot 3.
Ryunosuke TANAKA, Keita ODA, Shozo KISHI
Filed: 29 Oct 21
Utility
Transmission Unit and Power System
14 Dec 23
A clutch unit (20) includes a coupling element (23) configured to, in a power transmission enabled manner, couple an output shaft (13) of an engine (10) and an input shaft (16) of a hydraulic pump (15) driven by driving force of the engine (10), and a motor generator (18) configured to generate driving force separately from the engine (10), in which the coupling element (23) includes a driving-side coupling portion (23a) configured to be coupled to a first coupling portion (11a) that is provided in the output shaft (13), and a driven-side coupling portion (23b) configured to be coupled to a second coupling portion (15a) that is provided in the input shaft (16) and that is configured to be coupled to the first coupling portion (11a).
Jirou ARAKAWA, Koichi FUNAKI
Filed: 3 Dec 21
Utility
Transmission Unit and Power System
14 Dec 23
A clutch unit (20) includes a coupling element (23) configured to, in a power transmission enabled manner, couple an output shaft (13) of an engine (10) and an input shaft (16) of a hydraulic pump (15) driven by driving force of the engine (10), and a motor generator (18) configured to generate driving force separately from the engine (10), in which the motor generator (18) is disposed to avoid the coupling element (23) as viewed from an axial direction of the output shaft (13).
Jirou ARAKAWA, Koichi FUNAKI
Filed: 3 Dec 21
Utility
Work Vehicle
7 Dec 23
A work vehicle includes: a front wheel; a rear travel device; a travel body supported by the front wheel and the rear travel device; a driving section provided in the travel body and having an occupant floor section; a travel power transmission device configured to transmit power to the rear travel device; at least one electric motor coupled to the travel power transmission device; a first inverter connected to the at least one electric motor; and a second inverter connected to the at least one electric motor.
Yuji HIRASE, Sumio YAGYU, Kazuto OKAZAKI, Tsunehiro II
Filed: 31 Mar 23
Utility
Management System
7 Dec 23
A management system includes a working vehicle and a server.
Katsuhiko WATANABE, Tsuyoshi GONO, Atsushi MIMA, Ryuzo FUJITA, Ryosuke KINUGAWA
Filed: 26 May 23
Utility
Work Vehicle
7 Dec 23
A work vehicle includes: a travel device; a battery; a motor configured to supply motive power to the travel device; an inverter configured to enable the motor to operate; a first storage section configured to store a first coolant; and a second storage section configured to store a second coolant.
Yuji HIRASE, Sumio YAGYU, Kazuto OKAZAKI, Tsunehiro II
Filed: 5 Apr 23
Utility
Work Vehicle
7 Dec 23
A work vehicle including: a front wheel; a rear travel device; a travel body supported by the front wheel and the rear travel device; a driving section provided in the travel body and having an occupant floor section; a transmission configured to output power to the rear travel device; a transmission case housing the transmission; an electric motor coupled to the transmission; and an inverter connected to the electric motor, wherein: the inverter is provided between the front wheel and the rear travel device, under the floor section, and laterally of the transmission case.
Yuji HIRASE, Sumio YAGYU, Kazuto OKAZAKI, Tsunehiro II
Filed: 12 Apr 23