525 patents
Page 10 of 27
Utility
Work vehicle
16 Aug 22
A tractor includes a protective frame including a lower frame and an upper frame rotatably coupled with an upper portion of the lower frame, and an assist mechanism to assists a rotation of the upper frame.
Masanori Azuma, Terumasa Kobayashi, Hiroki Nagai, Tomohisa Yamamoto
Filed: 6 Jun 19
Utility
Working machine
16 Aug 22
A working machine includes a hydraulic device, an operation valve to supply operation fluid to operate the hydraulic device and to vary the operation fluid to be supplied to the hydraulic device, an operation device having an operation member supported swingably, the operation device being configured to output an operation signal in accordance with an operation amount of the operation member, and a controller including a swing calculator to calculate an evaluation value representing a degree of swinging of the operation member, and a control signal generator to generate a control signal based on the evaluation value and the operation signal.
Masahiro Toyama, Ryuki Nishimoto, Yuji Fukuda, Kohei Nagao, Ryota Hamamoto, Hiroaki Nakagawa
Filed: 21 Oct 20
Utility
EGR device
16 Aug 22
In an EGR device in which an EGR passage is merged with an intake passage communicating with a compressor housing of a supercharger, the EGR passage is extended to the inner side of the intake passage with respect to a junction between the EGR passage and the intake passage, and the position of a terminal end of an extended passage section in an air flow direction matches the position of a terminal end of the intake passage, the extended passage section being the EGR passage extended.
Tetsuya Kosaka, Kazumichi Matsuishi, Toshio Nakanishi, Naoya Junicho, Kensuke Fujita
Filed: 10 Jun 20
Utility
Work vehicle having driver's seat
9 Aug 22
A work vehicle includes a driver's seat attached to a seat base, a support shaft attached to the seat base and extending in a vehicle body transverse direction, the support shaft pivotably connecting the seat base with the vehicle body frame, and an isolator mounted on the support shaft to absorb only vibration in a vehicle body front/rear direction.
Tasuku Teraoka
Filed: 8 May 19
Utility
Multi-purpose vehicle
9 Aug 22
A multi-purpose vehicle includes a load carrier deck supported to a vehicle body frame which is supported on a ground surface via front wheels and rear wheels.
Jay Oxner, Takashi Fujii
Filed: 10 May 19
Utility
Working machine with control device to control operation allowable state and operation restriction state
9 Aug 22
A working machine includes an operation device to conduct operations of the working machine, a control device to control the working machine between an operation allowable state and an operation restriction state, the operation allowable state allowing the working machine to be operated, the operation restriction state restricting the operations conducted by the operation device in comparison with the operation allowable state.
Hiroshi Horii
Filed: 21 Jun 19
Utility
Planetary gear device and compound planetary gear device
9 Aug 22
A carrier includes a first carrier portion and a second carrier portion.
Tomonari Tsuchida, Ryoma Iwase, Tomoyuki Tanaka, Takahiro Matsuo
Filed: 7 Jun 21
Utility
Working vehicle
2 Aug 22
A working vehicle includes a vehicle body to travel, a steering handle to be turned to steer the vehicle body, and a steering switch to steer the vehicle body separately from the steering handle.
Shunsuke Miyashita, Kenichi Iwami, Hiroki Suga, Yuki Kubota, Toru Tambo, Kunihiko Nishino, Yasuaki Morioka, Kumiko Kobayashi, Misako Kawai, Manabu Togo, Yoshihiko Kuroshita
Filed: 20 Jul 20
Utility
Electric work vehicle, battery pack for electric work vehicle and contactless charging system
26 Jul 22
An electric work vehicle includes: a battery pack that is arranged between a left rear wheel arranged outside of a left frame and a right rear wheel arranged outside of a right frame, the front end of the battery pack being located forward of an axle center of a rear wheel unit; a left motor that is arranged above the battery pack, in the periphery of the left rear wheel, receives a supply of power from the battery pack, and transmits rotational power to the left rear wheel; and a right motor that is arranged above the battery pack, in the periphery of the right rear wheel, receives a supply of power from the battery pack, and transmits rotational power to the right rear wheel.
Hirokazu Ito, Kazuo Koike, Yasuhiro Manji
Filed: 2 Oct 19
Utility
Hydraulic system for working machine and control valve
26 Jul 22
A hydraulic system includes a first hydraulic device to be operated by an operation fluid, a second hydraulic device, the second hydraulic device being configured to be operated by the operation fluid, 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, the communication tube being configured to supply a return fluid that returns from the first hydraulic device to the first control valve, a supply fluid tube connecting the first control valve to the second control valve and being configured to supply the return fluid to the second control valve, and a connection fluid tube disposed on the first control valve, the connection fluid tube connecting the communication tube to the supply fluid tube.
Yuji Fukuda, Keigo Honda, Yoshimitsu Tanaka
Filed: 14 May 18
Utility
Work vehicle
19 Jul 22
A vehicle includes; a vehicle body on which the motor is mounted; an apparatus provided to the traveling vehicle body and also driven by drive power from the motor; an apparatus that performs work on a field; an apparatus that changes the speed of drive power input from the motor and transmits the drive power; a tool that includes speed change stages and is also capable of speed change operation of the speed change apparatus by human operation; a controller that, when the number of speed change stages is changed based on human operation of the speed change operation tool, outputs to the speed change apparatus a speed change command for each predefined number of stages and is also capable of outputting the speed change command for each defined speed change interval; and an operation mechanism that enables adjustment of the speed change interval.
Tetsuo Yamaguchi, Yoshihiko Kuroshita, Hitoshi Azuma, Michita Kono, Shinji Ohara
Filed: 17 May 19
Utility
Work vehicle
19 Jul 22
A work vehicle according to the present invention includes left and right axle cases of a rigid axle type, and left and right suspension mechanisms movable in the up-down direction relative to body frames and separately supporting the left and right axle cases, respectively.
Masahiro Azuma, Tatsuya Nagatomi
Filed: 26 May 20
Utility
Working machine
19 Jul 22
A working machine includes a pair of traveling devices, a pair of traveling motors having a first speed and a second speed higher than the first speed, a pair of traveling pumps to supply operation fluid to the traveling motors, a connector fluid tube connecting the traveling motors and the traveling pumps, a traveling-pump pressure detector to detect a traveling-pump pressure that is pressure generated in the connector fluid tube, a revolving speed detector to detect a prime-mover revolving speed, a third storage to store a second decelerating judgment table representing a relation between the prime-mover revolving speed and a second decelerating judgment pressure, and a controller having: an automatic decelerator portion to perform an automatic deceleration process for reducing a speed of the traveling motor, and a differential pressure calculator portion to calculate a traveling differential pressure between one traveling pump pressure and another traveling pump pressure.
Yuji Fukuda, Jun Tomita, Ryota Hamamoto, Ryosuke Kinugawa, Yoshimitsu Tanaka
Filed: 2 Apr 20
Utility
Pipe joint, separation prevention member, and method of connecting pipes
12 Jul 22
A pipe joint includes: a sealing member, having an annular shape, which is provided between the outer circumferential surface of a spigot and an inner circumferential surface of a socket; a pushing ring to push the sealing member into the socket, the pushing ring being fitted onto the spigot; and a separation preventive member configured to engage with the spigot protrusion part in a pipe-axial direction to prevent a separation of the spigot from the socket.
Takahiro Ishihara, Shogo Kaneko, Kazuya Ito, Shota Yamada, Yuki Hieda
Filed: 6 Mar 17
Utility
Mower unit for heat discharge and soundproofing
12 Jul 22
A mower unit 3 includes a rotational shaft extending upwards through a top wall of a mower deck, a cutter blade attached to a lower portion of the rotational shaft, a mower motor 4 having a rotor 43 disposed upward and a coil 42 disposed downward along an axial direction of an output shaft 41, a mount deck 5 having a horizontal mounting face for mounting the mower motor 4 in such a manner that the output shaft 41 assumes a vertical posture, the mount deck protruding outwards from a side wall of the mower deck, and a cooling arrangement 50 incorporated in the mound deck 5 for discharging heat of the mower motor 4.
Hirokazu Ito, Yasuhiro Manji
Filed: 15 Jun 18
Utility
Work vehicle
12 Jul 22
A work vehicle includes a cabin covering a driver section, a receiver to receive positional information from a satellite, and a stay to support the receiver.
Shinji Misaki
Filed: 17 Dec 19
Utility
Work vehicle
12 Jul 22
The present invention is provided to more reliably keep a work vehicle from coming into contact with an obstacle during automated driving.
Keishiro Nishi, Atsushi Shinkai, Tomofumi Fukunaga, Takahiro Nakatsuka, Atsushi Kobayashi
Filed: 26 Dec 17
Utility
Traveling vehicle
12 Jul 22
A traveling vehicle includes a steering shaft to which a steering handle is attached, the steering shaft being adjustable in tilt angle and length, a tilt lock to lock the steering shaft at an adjusted tilt angle, a telescopic lock to lock the steering shaft at an adjusted length, and an operator including an operation area to allow locking of both of the tilt lock and the telescopic lock to be released.
Yusuke Kita
Filed: 23 Dec 20
Utility
Electronic fuel injection type diesel engine
5 Jul 22
An electronic fuel injection type diesel engine enables reduction in engine size.
Hideyuki Koyama, Mitsugu Okuda, Yuji Shinohara, Mitsuru Kamiyama, Hiroki Oso
Filed: 9 Sep 19
Utility
Straightening plate mounting structure and work vehicle
21 Jun 22
The straightening plate mounting structure includes: a support member including a bottom plate portion in which a first elongated hole and second elongated holes are formed; a left straightening plate which is formed in a plate shape having a convex portion engageable with the first elongated hole and adjusts an air flow in a hood; and a right straightening plate which is formed in a plate shape having convex portions engageable with the second elongated holes and adjusts the air flow in the hood.
Koji Masumoto, Satoru Yamanaka, Masafumi Oshita
Filed: 9 Apr 20