logo

For the Inventor, By the Inventor

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.

Patent No.:

US 9334628 B1

PDFFull Text
Date of Patent:
May. 10, 2016

Filed:

Dec. 21, 2012

Motor grader

Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Tomonao Nagamura, Komatsu, JP;

Tetsuya Morimoto, Nomi, JP;

Michihiro Aida, Komatsu, JP;

Assignee:

KOMATSU LTD., Tokyo, JP;

Attorney:

Global IP Counselors, LLP

Primary Examiner:

Robert Pezzuto

Int. Cl.
CPC ...
B60K 31/00 (2006.01); E02F 9/22 (2006.01); B60W 10/02 (2006.01); B60W 10/06 (2006.01); B60W 10/11 (2012.01); E02F 3/84 (2006.01); E02F 9/20 (2006.01); F16H 61/00 (2006.01); B60W 10/04 (2006.01); B60W 30/14 (2006.01); F16H 61/02 (2006.01); F16H 63/50 (2006.01); E02F 3/76 (2006.01); F02D 29/04 (2006.01); F02D 29/02 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2253 (2013.01); B60K 31/00 (2013.01); B60W 10/02 (2013.01); B60W 10/04 (2013.01); B60W 10/06 (2013.01); B60W 10/11 (2013.01); B60W 30/14 (2013.01); E02F 3/7636 (2013.01); E02F 3/84 (2013.01); E02F 9/202 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F02D 29/04 (2013.01); F16H 61/00 (2013.01); F16H 61/0059 (2013.01); F16H 61/02 (2013.01); F16H 63/50 (2013.01); B60Y 2200/411 (2013.01); F02D 29/02 (2013.01);
Abstract

A motor grader is provided with an engine, front and rear travel wheels, a transmission, a work implement, a control unit, and a vehicle speed adjusting knob. The transmission has hydraulic clutches for switching between forward and reverse travel and for switching between speed stages. The transmission changes the speed of power from the engine, and transmits the power to either the front travel wheels and/or to the rear travel wheels. The work implement includes a blade for grading. During travel at a forward first speed, the control unit causes one of the hydraulic clutches of the transmission to operate as a braking clutch such that the motor grader travels at a very low speed. The vehicle speed adjusting knob is a member for setting the vehicle speed during very low-speed travel to an arbitrary speed.

Find Patent Forward Citations

Loading…