525 patents
Page 4 of 27
Utility
Organic wastewater treatment apparatus
22 Aug 23
An organic wastewater treatment apparatus biologically treats organic wastewater containing nitrogen using a treatment tank storing activated sludge.
Soichiro Yatsugi, Shinya Nagae, Hitoshi Yanase
Filed: 23 Mar 21
Utility
Protection mechanism for working vehicle, and working vehicle including the same
15 Aug 23
A protection mechanism for a working vehicle includes a roof provided above an operator's seat, a pillar extending upward from a vehicle body and supporting the roof, a camera with a predetermined viewing direction, and a support stay which is connected to the pillar, orients the predetermined viewing direction of the camera sideways, and supports the camera below a peripheral portion of the roof.
Satoru Horai, Takuya Nishikubo
Filed: 10 Dec 21
Utility
Hydraulic system of working machine
15 Aug 23
A hydraulic system of a working machine includes a hydraulic pump to output a hydraulic fluid, at least one proportional valve to deliver the hydraulic fluid to a supply target, a valve body including the proportional valve, a heat-up fluid passage in the valve body and into which the hydraulic fluid flows, a switching valve switchable between an open position in which the hydraulic fluid passing through the heat-up fluid passage is supplied to a hydraulic device and a closed position in which the hydraulic fluid is not supplied thereto and the hydraulic fluid from the hydraulic device is to be returned, a controller to operate the switching and proportional valves, and a return circuit through which the hydraulic fluid flowing into the heat-up fluid passage is returned as a result of at least one of the switching and proportional valves being operated by the controller.
Yuji Fukuda, Jun Tomita, Yuya Konishi, Toshiya Tani, Daisuke Sakurai
Filed: 2 Jun 22
Utility
Agricultural machine
15 Aug 23
An agricultural machine includes a swath information acquiring module, a first determining module to determine a traveling path of an automatic operation based on a position of a swath, a setting module to set a work continuation width based on the traveling path, a second determining module to determine, when there is a manual operation by a worker during the automatic operation, whether the agricultural machine during the manual operation is within the work continuation width, and an executing module to execute the automatic operation.
Shogo Hayashida, Susumu Umemoto, Shinnosuke Ishikawa, Junichi Yuasa
Filed: 9 Dec 20
Utility
Work vehicle
15 Aug 23
A work vehicle includes an engine (11); a traveling device (1, 2) capable of traveling on the ground; a power transmission device (13) that transmits driving power of the engine (11) to the traveling device (1, 2) with a work oil; a cooling device (15) for cooling the engine (11) with a cooling fluid; a storage unit (17) having a first storage space (17A) for storing the work oil and a second storage space (17B) for storing the cooling fluid.
Kensuke Okabe, Kohta Nakao, Kazuhiro Tanaka, Yusuke Endo, Toshifumi Yasuda
Filed: 13 May 21
Utility
Autonomous work vehicle travel system, travel route managing device, travel route generating device, and travel route determining device
15 Aug 23
This autonomous work vehicle travel system is provided with: a satellite positioning module 80 that outputs positioning data indicating a vehicle position of a work vehicle 1; an area setting unit that sets an area CA to be worked in a work site; a route managing unit that calculates a travel route element set, which is an aggregate of multiple travel route elements constituting a travel route that covers the area CA to be worked, and storing the travel route element set so as to be readable; a route element selecting unit that selects a next travel route element to be traveled in sequence from the travel route element set; and an autonomous travel controlling unit that causes the work vehicle 1 to travel autonomously on the basis of the next travel route element and the vehicle position.
Sakura Tomita, Tomohiko Sano, Kazuo Sakaguchi, Tetsuya Nakajima, Makoto Oshitani, Kenichi Iwami, Osamu Yoshida
Filed: 28 Jun 17
Utility
Traveling transmission device of tractor
8 Aug 23
Provided are a speed changer device, a forward/reverse switchover device for converting output of the speed changer device into forward traveling power and reverse traveling power, a rear wheel differential mechanism for inputting output of the forward/reverse switchover device and transmitting it to rear wheels, and a gear transmission mechanism for transmitting power of an output shaft of the forward/reverse switchover device to an input shaft of the rear wheel differential mechanism.
Tomonari Tsuchida, Ryoma Iwase, Tomoyuki Tanaka, Takahiro Matsuo, Hidetoshi Hana
Filed: 22 Sep 20
Utility
Mower
1 Aug 23
There are included front and back slope portions attachable to and detachable from storage positions and use positions, front and back holding portions capable of engaging with engagement portions of the front and back slope portions as attached to the storage positions and holding the front and back slope portions at the storage positions, and a disengaging operation tool capable of being manually operated to a disengaging position at which the front holding portion and the back holding portion are releasable from the engagement portions of the front and back slope portions and at which the slope portions are detachable from the storage positions.
Terumasa Kobayashi, Nobuyuki Yamashita, Ryotaro Nakatsu
Filed: 10 Jun 20
Utility
Hydraulic system for working machine and control method of the hydraulic system
1 Aug 23
A hydraulic system includes: a boom cylinder to move a boom; a working tool cylinder to move a working tool attached to the boom; a boom control valve to control the boom cylinder; a working tool control valve to control the working tool cylinder; a horizontal control valve having: an activating position to allow a horizontalizing operation of the working tool; and a stopping position to stop the horizontalizing operation; and a controller device having: a first information obtaining portion to obtain permission and non-permission to the horizontalizing operation; a second information obtaining portion to obtain at least one of upward operation and upward movement of the boom; and a horizontal controller to set the horizontal control valve to the stopping position when the first information obtaining portion obtains the non-permission and the second information obtaining portion obtains one of the upward operation and the upward movement.
Yuji Fukuda, Yusuke Tomatsu
Filed: 15 Jun 20
Utility
Work vehicle
1 Aug 23
A work vehicle includes a vehicle body frame, a cab frame attached to the vehicle body frame so as to be rotatable around a pivot axis, a support provided on the cab frame, a fastener provided on the cab frame and between the support and the pivot axis in a radial direction from the pivot axis, a hydraulic hose, and a hose installation member.
Masaki Inaoka, Yoshihiro Ebata, Shun Tsuruta
Filed: 23 Mar 21
Utility
Working vehicle
1 Aug 23
A working vehicle includes a steering device including a steering handle, a vehicle body to travel with either manual steering by the steering handle or automatic steering of the steering handle based on a traveling reference traveling line, and a controller to permit automatic steering based on steering angles of the steering device obtained when the vehicle body travels a predetermined distance while being steered by the manual steering.
Shunsuke Miyashita, Toru Tambo, Kenichi Iwami, Hiroki Suga, Yasuaki Morioka, Kunihiko Nishino, Kumiko Kobayashi, Misako Kawai
Filed: 24 Dec 20
Utility
Work vehicle
25 Jul 23
A work vehicle in which deformation of a shield member can be suppressed.
Ryo Masuda
Filed: 21 Sep 20
Utility
Storable cargo bed sidewalls and/or tailgate and method for storing cargo bed sidewalls and/or tailgate
25 Jul 23
A cargo bed for a utility terrain vehicle (UTV) having a floor, a tailgate, and a pair of sidewalls.
Nicholas Allicock, John White
Filed: 28 Dec 20
Utility
Grass mowing machine
18 Jul 23
A grass mowing machine includes a vehicle body frame, a mower deck incorporating a rotary cutter blade, a coupling mechanism for coupling the mower deck to the vehicle body frame with allowing a lateral displacement of the mower deck in a vehicle body transverse direction, a mower electric motor attached to the mower deck and configured to feed rotary power to the rotary cutter blade and a displacement operation mechanism MV for laterally displacing the mower deck in the vehicle body transverse direction in operative association with the coupling mechanism.
Masahiro Yamada, Fumiya Yasue
Filed: 13 May 20
Utility
Work vehicle
18 Jul 23
A brake control unit configured to control a brake to a braked state in response to a brake position sensor having detected that a steering lever has been operated to a stop position and to a released state in response to the brake position sensor having detected that the steering lever has been operated from the stop position toward a travel operation pathway and a travel position sensor having detected that the steering lever is at a neutral position, at which the steering lever is placeable to stop travel.
Ryo Ikeda
Filed: 26 May 20
Utility
Automatic travel work machine, automatic travel grass mower, grass mower, and grass mower automatic travel system
11 Jul 23
The present invention provides an autonomous traveling work machine that can accurately receive positioning signals from navigation satellites and autonomously travel without deviating from a traveling path, even in the case of an inclined slope.
Hiroshi Koto, Yasushi Watabe, Taro Nakamura, Junichiro Takiguchi, Yusuke Minakata, Takanori Kobayashi, Masahiro Kawabata
Filed: 19 Dec 18
Utility
Work vehicle
11 Jul 23
A diff-lock operation shaft 50 is supported by a case 11 in such a manner as to be rotatable around an axis P1 of the diff-lock operation shaft 50 and operates a diff-lock section 48 to a lock position A2 by being rotated, and a first coil spring 51 is wound around the outer surface of the diff-lock operation shaft 50 concentrically with the diff-lock operation shaft 50, and is linked at one end portion 51b to the diff-lock operation shaft 50 and at another end portion 51a to linking members 55 and 56.
Toshifumi Yasuda, Akihiro Takami
Filed: 16 May 22
Utility
Working machine
11 Jul 23
A working machine includes a machine body, a traveling device provided on the machine body, a traveling motor configured to provide power to the traveling device and to be switched between a first speed and a second speed, a traveling operation member to be operated by an operator, an operation detector to detect an operation extent of the traveling operation member, a traveling pump driven in response to the operation extent to supply operation fluid to the traveling motor, a revolution detector to detect a motor revolving speed, and a controller configured to switch the traveling motor from the second speed to the first speed when the motor revolving speed is equal to or less than a deceleration threshold, and then to switch the traveling motor from the first speed to the second speed when the motor revolving speed is equal to or greater than a return threshold.
Yuji Fukuda
Filed: 3 Aug 21
Utility
Mower
4 Jul 23
There are included a passage portion provided at an upper surface portion of a mower deck, front and back slope portions and provided at front and back portions of the passage portion, front and back supporting portions supporting the slope portions in such a manner that the slope portions are movable in the front-back direction and swingable in the up-down direction, and front and back linking portions that are supported in such a manner as to be swingable in the front-back direction about axes extending in the left-right direction and that are connected with the slope portions.
Terumasa Kobayashi, Seiya Sato, Ryusuke Kawamoto
Filed: 9 Jun 20
Utility
Cutter blade of mower
4 Jul 23
A cutter blade for a mower is disposed inside a housing of the mower and rotatably driven about a vertical axis.
Hirokazu Ito, Motosumi Shiotsuki
Filed: 22 Nov 19