1251 patents
Page 42 of 63
Utility
Traveling vehicle
13 Apr 21
A traveling control section of a traveling vehicle is configured to effect a normal operation to control an output of an engine when a vehicle speed is below a set vehicle speed, such that the engine output may correspond to an operation amount of an accelerator operating tool and to effect an output suppressing operation when the vehicle speed is equals to or more than the set vehicle speed, such that the vehicle speed may stay below the set vehicle speed, irrespectively of the operation amount of the accelerator operating tool.
Noriyasu Honjo
Filed: 29 Nov 17
Utility
Traveling vehicle
13 Apr 21
A traveling vehicle includes a pair of left and right drive wheels, a drive unit for providing driving force to the drive wheels, a drive wheel operation unit having a forward speed position, a neutral position, a reverse speed position and a parking position, a position detector for detecting the parking position of the drive wheel operation unit, a parking brake configured to brake the drive wheels under an operative state thereof, a rotation detector for detecting a predetermined state from a stopped state to a predetermined rotational speed of the drive wheels and a control unit configured to render the parking brake into the operative state on a condition including detection of the parking position by the position detector and detection of the predetermined state by the rotation detector.
Yasuhiro Manji
Filed: 13 May 20
Utility
Fluid heating apparatus for engine
13 Apr 21
An engine fluid heating apparatus, preventing failure in heating fluid, is provided.
Koji Nakakita
Filed: 3 Apr 18
Utility
Blow-by gas return device
13 Apr 21
A blow-by gas return device includes: a gas path which is configured to introduce a blow-by gas generated in a crankcase into an intake system through an inside of a head cover, a pressure control valve and a blow-by pipe; and an orifice provided to the gas path, the orifice mounted on a wall portion of an intake manifold on a cylinder head side.
Hiroaki Isoshima, Kentaro Shiraishi
Filed: 21 May 18
Utility
Hydraulic system for working machine
13 Apr 21
A hydraulic system for a working machine includes a hydraulic pump to output an operation fluid, a hydraulic device to be operated by the operation fluid, an operation member to be operated, a first operation valve to regulate a pressure of the operation fluid in accordance with operation of the operation member, and a pressure supplying portion to supply a first counteracting pressure of the operation fluid against a first operation pressure, the first operation pressure being a pressure of the operation fluid regulated by the first operation valve.
Yuji Fukuda, Toshihiko Takemura
Filed: 2 Oct 18
Utility
Obstacle detection device
13 Apr 21
An obstacle detection device includes an ultrasonic sensor, an obstacle detector to determine presence of an obstacle of interest if an intensity of a received ultrasonic wave exceeds a threshold value, and a threshold value setter to set a short-distance detection threshold value as the threshold value for the obstacle detection in a short-distance detection area in a vicinity of the ultrasonic sensor and to set a long-distance threshold value as the threshold value for the obstacle detection in a long-distance detection area located farther from the ultrasonic sensor than the short-distance detection area, the long-distance threshold value being less than the short-distance detection threshold value.
Atsushi Shinkai, Yushi Matsuzaki, Tomoya Omura, Tomofumi Fukunaga
Filed: 6 Mar 20
Utility
Hydraulic System of Work Machine and Work Machine
8 Apr 21
A hydraulic system of a work machine includes a first hydraulic device to operate in a first operation mode while pressure of hydraulic oil supplied from a hydraulic pump via a first oil passage is equal to or higher than a first pressure threshold.
Yuji FUKUDA, Kazuyoshi ARII, Ryohei SUMIYOSHI
Filed: 17 Dec 20
Utility
Electric Work Vehicle
8 Apr 21
In an electric work vehicle, a power feeding assembly which connects a battery device to a power controller unit so as to feed power includes a fixed connector which is fixed to the battery device and electrically connected to the battery device, a cable harness connected to a power controller unit, and a free connector which is connected to an end of the cable harness and connectable to a fixed connector, and a connecting operation tool is configured to be movable the free connector between the connecting position in which the free connector is connected to the fixed connector and the detaching position.
Hirokazu Ito, Junichi Yamanaka, Kazuaki Matsuda
Filed: 10 Jun 20
Utility
Working machine, anti-theft system for the same, anti-theft method for the same
6 Apr 21
An anti-theft system for a working machine, includes a communication device disposed on the working machine, the communication device having a first communicator, a mobile terminal having a storage to store authentication information, and a second communicator, and a control device disposed on the working machine, the control device having an authentication processor to execute an authentication processing that determines whether to provide a permission of driving a driving portion of the working machine based on the authentication information.
Ryosuke Kinugawa, Keisuke Miura, Keisuke Egashira
Filed: 6 Jun 18
Utility
Electrically powered work vehicle
6 Apr 21
An electrically powered work vehicle includes a left driving wheel and a right driving wheel that are supported to a vehicle body, a left motor for driving the left driving wheel and a right motor for driving the right driving wheel, a steering wheel, an acceleration operation tool, a turning command calculation section for calculating a turning command based on a steering operation amount of the steering wheel, a turning torque calculation section for calculating a turning torque based on the turning command, a vehicle speed command calculation section for calculating a vehicle speed command based on an acceleration operation amount of the acceleration operation tool, a vehicle speed torque calculation section for calculating a vehicle speed torque based on the vehicle speed command, and a speed command calculation section for calculating a left motor speed command and a right motor speed command based on the turning torque and the vehicle speed torque.
Katsuhiko Uemura, Hirokazu Ito
Filed: 9 Nov 18
Utility
Work machine
6 Apr 21
A work machine includes a cabin, a machine room, a hydraulic oil tank, a partition wall, and a cover member.
Keigo Honda, Hiroshi Imamura, Yusuke Hada, Shunichiro Mori, Shinsuke Hisatake
Filed: 31 May 19
Utility
Hydraulic system for working machine and control valve
6 Apr 21
A hydraulic system includes a first hydraulic device, a second hydraulic device, a first control valve to control the first hydraulic device, a second control valve disposed on a downstream side of the first control valve and configured to control the second hydraulic device, a communication tube connecting the first hydraulic device to the first control valve, a supply fluid tube connecting the first control valve to the second control valve, a connection fluid tube disposed on the first control valve, the connection fluid tube connecting the communication tube to the supply fluid tube, a discharge fluid tube connected to the first control valve, a setting portion disposed on the discharge fluid tube and configured to increase a pressure in the discharge fluid tube, a branching fluid tube branched from the connection fluid tube and connected to the discharge fluid tube, and a throttle disposed on the branching fluid tube.
Yuji Fukuda, Keigo Honda, Yoshimitsu Tanaka
Filed: 19 Dec 18
Utility
Operation device and work vehicle
6 Apr 21
An operation lever is rotatable in a vertical rotation direction about a vertical rotation shaft and rotatable in a front-rear rotation direction about a front-rear rotation shaft non-parallel to the vertical rotation shaft.
Koichi Nakai, Takashi Kosaki
Filed: 28 Feb 20
Utility
Work Vehicle
1 Apr 21
A work vehicle of the invention includes: a pair of right and left front wheels disposed in a front part of the vehicle body; a pair of right and left rear wheels disposed in a rear part of the vehicle body; a side wall disposed at an outer end part of one side in a right-left direction of the vehicle body; and a radiator disposed between the front wheels and the rear wheels in a side view and on an inner side relative to the side wall in a plane view, wherein the radiator is disposed with an air-suction surface thereof facing toward the side wall to form an air-suction opening in a bottom part of a space between the air-suction surface and an inner surface of the side wall, and wherein a dust-proof body protruding downward to a lower level than a level of a lower end of the vehicle body is disposed on at least one of: a front side of the air-suction opening and a rear side of the front wheels; and a rear side of the air-suction opening and a front side of the rear wheels.
Tatsuya Nagatomi
Filed: 9 Jun 20
Utility
Traveling Transmission Device of Tractor
1 Apr 21
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
Work Vehicle
1 Apr 21
The disclosure provides a work vehicle in which deformation of a shield member can be suppressed.
Ryo MASUDA
Filed: 21 Sep 20
Utility
Hydraulic System for Working Machine
1 Apr 21
A hydraulic system for a working machine includes a hydraulic pump to output operation fluid, a hydraulic actuator to be activated with the operation fluid, a first control valve to which the operation fluid outputted by the hydraulic pump is supplied, the first control valve being configured to control the hydraulic actuator, a second control valve to control the hydraulic actuator separately from the first control valve, a first fluid tube connecting the hydraulic pump and the first control valve, a second fluid tube branching from the first fluid tube and connecting to an input port of the second control valve, a third fluid tube connecting the first control valve and the hydraulic actuator, and a fourth fluid tube connecting to an output port of the second control valve and connecting to the third fluid tube.
Yuji FUKUDA, Hiroaki NAKAGAWA
Filed: 24 Sep 20
Utility
Pipe Joint, Push Ring for Pipe Joint, Method for Joining Pipes
1 Apr 21
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
Grass mower having rotatable blade
30 Mar 21
A mower unit provided in a grass mower unit includes a mower deck having a top plate and a side plate extending downwards from the top plate, a rotational shaft extending through the top plate and rotatably supported to the top plate, and a blade attached to the rotational shaft inside the mower deck.
Masato Asahara, Phillip Sutton, Jr., Kazuhiro Ochi, Shoichiro Nagaishi, Akira Minoura, Yuto Fujii
Filed: 27 Dec 18
Utility
Agricultural Machine
25 Mar 21
An agricultural machine includes a baler controller configured or programmed to obtain an ejector inclination value from a positional relation between a tractor inclination sensor and a bale ejector of a baler, the ejector inclination value being a sensor value of the inclination sensor corresponding to the bale ejector, and to allow ejection of the bale when a size of the bale in the baler is larger than a first threshold value and the ejector inclination value is less than a second threshold value.
Ryo KURATA, Susumu UMEMOTO, Shinnosuke ISHIKAWA, Zerbino FULVIO
Filed: 15 Sep 20