The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 13, 2026

Filed:

Dec. 05, 2023
Applicant:

Kubota Corporation, Osaka, JP;

Inventors:

Daiki Abe, Osaka, JP;

Kohei Kurachi, Osaka, JP;

Yudai Koga, Osaka, JP;

Yuya Konishi, Osaka, JP;

Yuya Tanabe, Osaka, JP;

Assignee:

KUBOTA CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/47 (2010.01); E02F 9/22 (2006.01); F15B 11/17 (2006.01); F16H 61/431 (2010.01); E02F 3/34 (2006.01); F16H 61/438 (2010.01); F16H 61/456 (2010.01);
U.S. Cl.
CPC ...
F16H 61/47 (2013.01); E02F 9/2235 (2013.01); E02F 9/2253 (2013.01); E02F 9/2282 (2013.01); E02F 9/2285 (2013.01); E02F 9/2289 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F15B 11/17 (2013.01); F16H 61/431 (2013.01); B60Y 2400/85 (2013.01); E02F 3/3414 (2013.01); E02F 9/2228 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/6355 (2013.01); F15B 2211/7135 (2013.01); F16H 61/438 (2013.01); F16H 61/456 (2013.01);
Abstract

A working machine includes: a first fluid passage fluidly connecting a traveling operation device to an actuation valve; a first traveling fluid passage; a second traveling fluid passage; a third traveling fluid passage; a fourth traveling fluid passage; a second fluid passage fluidly connecting the first fluid passage to the first traveling fluid passage; and a third fluid passage fluidly connecting the first fluid passage to the third traveling fluid passage. Each of the first, second, third, and fourth traveling fluid passages is configured so that operation fluid to be applied to a first, second, third, and fourth pressure-receiving portions flows through the first, second, third, and fourth traveling fluid passages, respectively, when a traveling operation member is operated.


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