公开(公告)号：US20170284425A1

公开(公告)日：2017-10-05

申请号：US15391740

申请日：2016-12-27

Applicant: KUBOTA CORPORATION

Inventor： Yoshimitsu TANAKA ,  Kunihiko BITO ,  Tsukasa HARAGUCHI ,  Toshiaki OTANI ,  Yuji KAWANO ,  Masaru KUMATANI ,  Junki MAEDA ,  Shoichi KAWANO ,  Hitoshi IWAMURA ,  Teruo KUNIZAWA ,  Takehiro WAKASUGI

IPC: F15B11/16 ,  E02F9/22 ,  F15B21/04 ,  E02F3/42 ,  F15B11/10 ,  F15B1/26

CPC classification number: F15B11/168 ,  E02F3/422 ,  E02F9/2221 ,  E02F9/2239 ,  E02F9/2246 ,  E02F9/2285 ,  E02F9/2289 ,  E02F9/2292 ,  E02F9/2296 ,  F15B1/26 ,  F15B11/10 ,  F15B21/044 ,  F15B2211/35 ,  F15B2211/55 ,  F15B2211/7052 ,  F15B2211/7058 ,  F15B2211/71 ,  F15B2211/78

Abstract: A hydraulic system for a work machine includes a first switch valve and a first return circuit. The first switch valve is switchable between a confluent position and an isolation position. The first switch valve is switched to the confluent position such that a first operation fluid tube is connected to a second operation fluid tube and a first transmission fluid tube is connected to a second transmission fluid tube. The first switch valve is switched to the isolation position such that the first operation fluid tube is disconnected from the second operation fluid tube and the first operation fluid tube is disconnected from the second operation fluid tube.

公开(公告)号：US20220090361A1

公开(公告)日：2022-03-24

申请号：US17538073

申请日：2021-11-30

Applicant: KUBOTA CORPORATION

Inventor： Kazuaki SHOBU ,  Hiroshi HORII ,  Hitoshi IWAMURA ,  Shoichi KAWANO ,  Shohei DOI

IPC: E02F9/22

Abstract: A working machine includes: a support bracket provided on a machine body and including a boom pivotal support portion and a cylinder pivotal support portion; a boom pivotally supported by the boom pivotal support portion; a boom cylinder pivotally supported at the cylinder pivotal support portion and the boom, and causing the boom to swing upward and downward; a hydraulic hose extended through the support bracket from the rear of the support bracket to the front of the support bracket and connected to the boom cylinder; a first clamp to retain the hydraulic hose on the support bracket; and a second clamp to retain the hydraulic hose on the boom cylinder. The support bracket includes a through hole through which the hydraulic hose is passed in a fore-and-aft direction. The first clamp is disposed rearward of the through hole and forward of the rear end of the boom shaft.