Kubota Corporation

Toshihiko Takemura

Ryohei Sumiyoshi

Yuji Yamashita

Hiroyuki Anami

Toyoaki Yasuda

Masahiro Kuroda

Shunichiro Mori

Hayato Ido

Hiroshi Koyamatsu

Satoshi Tajima

Kunihiro Suzuki

Hideo Imai

Yasuo Nakata

Naoya Muramoto

Shigeki Morishita

Yuji Fukuda

Taiki Furuki

Yoshihiro Ueda

Yoshitaka Matsubara

Masanori Fujino

Hiroaki Kurachi

Shinsuke Hisatake

Hajime Tamaki

Kenji Mitsui

Takeshi Ikumura

Yuuki Takano

Noriyoshi Kubo

Hiroyuki Hata

Kohei Higashiyama

Yusuke Kawai

Youhei Kawano

Hayato Kawano

Junta Kuwae

Kazuyoshi Arii

Takashi Yoshii

Tetsu Fukui

Akio Hattori

Shoichiro Kawamura

Fumiki Sato

Toshio Ishiguro

Tsuyoshi Aoki

Eisaku Shinohara

Takeshi Kajimoto

Megumi Miyamoto

Kazuhiro Masutani

Kenichi Ogura

A hydraulic system for a working vehicle includes a first hydraulic pump to deliver pilot fluid to a control valve for a hydraulic actuator whose highest load pressure acts on a first fluid passage, and a second hydraulic pump to deliver hydraulic fluid whose pressure acts on a second fluid passage. A hydraulic controller is operable to control a load-sensing (LS) differential pressure between the highest load pressure and a delivery pressure of the hydraulic fluid from the second hydraulic pump. A third fluid passage to which the second hydraulic pump delivers the hydraulic fluid branches to a fourth fluid passage for flow of the pilot fluid. A solenoid valve is operable to change a pilot pressure of the pilot fluid for the hydraulic controller, and a controller is configured or programmed to control the solenoid valve to adjust the pilot pressure to change the LS differential pressure.

Hydraulic system for working machine

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.

A working machine includes: a boom base portion including: an inner side wall; and an outer side wall disposed opposite to the inner side wall; a lift link disposed on a rear portion of the boom base portion; and a boom cylinder disposed in front of the lift link. One end side of the lift link is inserted between the inner side wall and the outer side wall and is pivotally supported on the boom base portion. The other end side of the lift link is pivotally supported on the machine body. One end of the boom cylinder is inserted between the inner side wall and the outer side wall in front of the lift link and is pivotally supported on the boom base portion. The other end of the boom cylinder is pivotally supported on the machine body by below the lift link.

Working machine

A cabin includes: a panel disposed on a side of an operator seat, the panel including: a plurality of cross members extending in a first direction; and a plurality of transverse members intersecting with the plurality of cross members each other and extending in a second direction; a glass panel disposed on a side of the panel; a window frame disposed on the glass panel; a window panel disposed on the window frame, the window panel being configured to move in the first direction or in the second direction; a projecting member disposed on a side of the window panel, the side being an identical side to the operator seat, the projecting member being configured to move together with the window panel; and a guide portion configured to accept insertion of the projecting member and to limit a moving distance of the window panel.

Cabin of working machine and working machine having cabin

A working machine includes a travel device, a motive power transmission device configured to transmit a motive power to the travel device, a transmission case configured to house the motive power transmission device, and a hydraulic operation fluid tank disposed on an upper surface of the transmission case.

A work machine includes a machine body, a motor provided in a rear portion of the machine body, a bonnet which covers a rear of the motor and which is openable, a tank disposed between the motor and the bonnet, and a support member. The support member includes a bracket supporting the tank on the bonnet such that the tank is separated from the bonnet.

Work machine with tank supported on bonnet

Cabin of working machine, working machine having cabin, and method for manufacturing cabin

Skid steer loader

Working machine that includes a machine frame, an operator seat, and a boom disposed on each side of the operator seat. The boom includes a boom base portion disposed on a position corresponding to a rear portion of the machine frame. A boom tip end portion is disposed opposite to the boom base portion. A boom intermediate portion is disposed between the boom base portion and the boom tip end portion. A boom cylinder is connected to the boom base portion at one end and to the machine frame at the other end. The boom cylinder is configured to swing the boom upward and downward. A hose insertion hole is disposed in the boom base portion and is opened backward or downward. A hydraulic hose is inserted into the hose insertion hold and is internally disposed in an inside of the boom intermediate portion.

Working machine with hydraulic hose and boom intermediate portion

Growing community of inventors

Osaka, Japan

Toshihiko Takemura