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:
Jun. 28, 2022

Filed:

Oct. 21, 2020
Applicant:

Kubota Corporation, Osaka, JP;

Inventors:

Yuji Fukuda, Osaka, JP;

Ryota Hamamoto, Osaka, JP;

Jun Tomita, Osaka, JP;

Assignee:

KUBOTA CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); E02F 9/02 (2006.01); F16H 61/16 (2006.01); F16H 59/02 (2006.01); F16H 61/4035 (2010.01); F16H 59/00 (2006.01); E02F 3/34 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2253 (2013.01); E02F 9/02 (2013.01); F16H 59/02 (2013.01); F16H 61/16 (2013.01); F16H 61/4035 (2013.01); E02F 3/3414 (2013.01); E02F 9/2285 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F16H 2059/006 (2013.01);
Abstract

A working machine includes a machine body, a prime mover, a traveling device mounted on the machine body, a traveling motor to provide a power to the traveling device and to switch between a first speed and a second speed higher than the first speed, a traveling pump to be driven by the prime mover and to supply operation fluid to the traveling motor, and a controller device including an automatic shifter to automatically shift the traveling motor to the first speed or to the second speed, a timer to count an elapsed time from the automatically shifting, and a shift prohibitor to prohibit the automatically shifting by the automatic shifter when the elapsed time counted by the timer is less than a threshold.


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