1251 patents
Page 52 of 63
Utility
Work Vehicle
5 Aug 20
A work vehicle includes a bypass passage formed in an operational valve of a dump cylinder and configured to feed pressure oil from a hydraulic pump to a power steering device when the operational valve is under a neutral state and an oil feeding passage equipped with an orifice, the orifice-equipped oil feeding passage being configured to feed the pressure oil from the hydraulic pump to a rod side oil chamber of the dump cylinder when the operational valve is under the neutral state.
Masaru Nakaji, Takeshi Tsuchiya
Filed: 24 Nov 19
Utility
Hydraulic system for working machine
3 Aug 20
A hydraulic system includes a hydraulic pump to be driven by a prime mover, a first hydraulic actuator, a second hydraulic actuator, a first connecting fluid tube connected to the first hydraulic actuator, a second coupling hydraulic tube connected to the first hydraulic actuator, and a first control valve having a first position and a second position.
Yuji Fukuda, Keigo Honda
Filed: 4 Jun 19
Utility
Sensor management device and sensor management method
3 Aug 20
A sensor management device includes first circuitry and second circuitry.
Kazuo Sakaguchi, Izuru Shimamoto, Kenji Tamatani, Megumi Suzukawa, Atsushi Shinkai
Filed: 20 Jun 17
Utility
Hydraulic System for Work Machine
29 Jul 20
A hydraulic system for a work machine includes a travel hydraulic device which changes a travel speed in accordance with switching positions of a hydraulic switch valve.
Yuji FUKUDA, Daiki ABE, Jun TOMITA, Yuya KONISHI, Ryosuke KINUGAWA
Filed: 14 Apr 20
Utility
Hydraulic System In Work Machine
29 Jul 20
A hydraulic system in a work machine includes a hydraulic pump to supply pilot hydraulic oil.
Yuji FUKUDA
Filed: 16 Apr 20
Utility
Hydraulic System for Work Machine and Work Machine
29 Jul 20
A hydraulic system for a work machine includes a tank to store an operation fluid, a hydraulic device to be operated by the operation fluid, a control valve to control the hydraulic device, a first fluid tube connecting the hydraulic device and the control valve, the first fluid tube being to supply the operation fluid from the control valve to the hydraulic device, a second fluid tube branching from the first fluid tube and connected to the tank, a switch valve provided to the second fluid tube, the switch valve being to control a flow rate of the operation fluid, and an oil cooler provided to the second fluid tube between the switch valve and the tank.
Yuji FUKUDA, Kazuyoshi ARII, Hiroaki NAKAGAWA
Filed: 13 Apr 20
Utility
Front loader and working machine
27 Jul 20
A front loader includes a working tool and an attachment body to which the working tool is attached, including a lock pin configured to attach and fix the working tool, a lock lever configured to move the lock pin between a releasing position and an attaching position, and a latching portion having a retaining mechanism configured to retain the lock lever at the releasing position and another mechanism configured to move the lock lever to the attaching position.
Ryuichi Nadaoka, Yuta Ozeki, Masaki Abe, Koshiro Hirakawa
Filed: 19 Dec 18
Utility
Tappet
22 Jul 20
Kazunori KAWAHARA, Masayasu TAKAMI
Filed: 25 Jan 18
Utility
Work vehicle and display device for the work vehicle
20 Jul 20
A plug-in hybrid work vehicle includes a first battery charged from an on-board electric generator, a second battery charged from an external electric power source, a charging switch, a DC-to-DC converter, a voltage determination unit, and a charging control unit.
Masaaki Nishinaka, Yukifumi Yamanaka
Filed: 8 Dec 16
Utility
Hydraulic System of Work Machine and Work Machine
15 Jul 20
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: 29 Mar 20
Utility
Obstacle Detection Device
15 Jul 20
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: 5 Mar 20
Utility
Hydraulic system for working machine
13 Jul 20
A hydraulic system includes a hydraulic pump to output an operation fluid, a hydraulic apparatus to be activated by the operation fluid, an operating member to operate the hydraulic apparatus, an operation valve to determine a pressure of the operation fluid in accordance with operation of the operating member, the operation fluid being supplied to the hydraulic apparatus, a first fluid tube connecting the hydraulic pump to the operation valve, a first working valve disposed on the first fluid tube, the first working valve being configured to change an opening aperture of the first working valve, a first outputting fluid tube connected to a section of the first fluid tube between the operation valve and the first working valve, and a second working valve disposed on the first outputting fluid tube, the second working valve being configured to change an opening aperture of the second working valve.
Yuji Fukuda
Filed: 25 Dec 17
Utility
Work vehicle
13 Jul 20
A work vehicle includes an engine, an intake passage through which combustion air flows from an ambient air inlet to an engine, an air cleaner for removing dust contained in the combustion air, a throttle valve for adjusting an intake amount of the combustion air by the engine, a blowby gas returning passage for returning blowby gas discharged from the engine to a mid portion of the intake passage, and an inclined passage portion that assumes a progressively downwardly inclined posture to be located at a lower position on downstream side in a flow direction, the inclined passage portion having a water draining portion at its lowermost end.
Hiroki Bessho, Kazuyuki Tashiro
Filed: 16 May 18
Utility
Work vehicle
13 Jul 20
A seatbelt of a work vehicle includes: a first stay provided in correspondence with a first fixing portion of a vehicle body on either one of right/left sides of a seat; a belt reeling portion that reels and stores a belt main body and is attached to the first fixing portion via the first stay; a second stay provided in correspondence with a second fixing portion on the other one of the right/left sides of the seat; and a buckle portion that fixes an insertion fixture extending from the belt reeling portion and is attached to the second fixing portion via the second stay.
Masaru Nakaji, Hiromi Takahashi
Filed: 12 Jun 18
Utility
Working machine
6 Jul 20
A working machine body includes a machine body having a front and a rear opposite to the front in a front-rear direction and an engine mounted in the machine body.
Keigo Honda, Hiroaki Nakagawa, Daisuke Sakurai, Hiroshi Fujiwara
Filed: 17 Apr 19
Utility
Work vehicle axle device
6 Jul 20
Work vehicle axle device includes a wheel drive case utilizing a centrally disposed vertically extending first coupling portion, a centrally disposed vertically extending second coupling portion spaced from the first coupling portion and an input shaft located below an upper end of either the first or second coupling portions and being configured to transmit rotational power to wheels.
Tomeo Umemoto
Filed: 11 Jun 17
Utility
Front loader and work machine
6 Jul 20
A front loader includes a boom to which a bucket or a working implement other than the bucket is attached, a boom cylinder to move the boom, a first control valve to supply an operation fluid to the boom cylinder, a supporting member supporting the boom on a front portion of a vehicle body of a work machine, an attachment frame extending backward from the supporting member.
Hiroaki Iizuka, Daniel Underwood, Chad Reeves, Patrick Penland
Filed: 7 Feb 19
Utility
Hydraulic system for working machine
6 Jul 20
A hydraulic system for a working machine includes an fluid cooler including an input port and an output port, the fluid cooler being configured to cool an operation fluid, an outputting portion to output the operation fluid, a traveling hydraulic device to be activated by the operation fluid, an operating hydraulic device to be activated by the operation fluid, a first output fluid tube connecting the operating hydraulic device to a tank, a second output fluid tube branching from the first output fluid tube and being connected to the input port of the fluid cooler, a third output fluid tube connecting the outputting portion to the output port of the fluid cooler, a fourth output fluid tube connected to the traveling hydraulic device, the fourth output fluid tube being connected to the second output fluid tube, and a first check valve disposed on the fourth output fluid tube.
Yuji Fukuda, Keigo Honda, Hiroaki Nakagawa, Daisuke Sakurai, Toshiya Tani, Taisuke Shinohara, Yoshihiro Ebata
Filed: 10 Dec 17
Utility
Blow-by gas heating apparatus
6 Jul 20
As a further improvement of the technique of minimizing or preventing excessive cooling of an oil separator, an effective blow-by gas heating apparatus which minimizes or solves the problems due to frozen blow-by gas in an engine externally equipped with an oil separator is provided.
Mitsuhiro Akita, Kohei Sawada
Filed: 30 Aug 17
Utility
Breather device for engine
6 Jul 20
A breather device for an engine which prevents a blow-by gas outlet passage from being blocked due to freezing, is provided, which includes a valve holder in a cylinder head cover and a breather valve supported by the holder.
Gen Nakamura, Koji Okada, Tamotsu Kuno, Akihiko Kai
Filed: 23 May 18