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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 10272774 B1

PDFFull Text
Date of Patent:
Apr. 30, 2019

Filed:

Apr. 17, 2017

Work vehicle

Applicant:

Yanmar Co., Ltd., Osaka-shi, Osaka, JP;

Inventor:

Yusuke Hashimoto, Osaka, JP;

Assignee:

Yanmar Co., Ltd., Osaka-shi, JP;

Attorney:

Norton Rose Fulbright US LLP

Primary Examiner:

Joseph M Rocca

Assistant Examiner:

Marlon A Arce

Int. Cl.
CPC ...
B60K 17/08 (2006.01); B60K 5/02 (2006.01); B60K 17/10 (2006.01); B60K 17/22 (2006.01); B60K 17/344 (2006.01); B60K 23/08 (2006.01); B60T 11/12 (2006.01); B60T 11/28 (2006.01); F16H 3/093 (2006.01); F16H 3/14 (2006.01); F16H 39/42 (2006.01); F16H 47/02 (2006.01); F16H 57/025 (2012.01); F16H 61/00 (2006.01); B60K 17/06 (2006.01); B60T 1/06 (2006.01); B60T 11/21 (2006.01); F16H 47/04 (2006.01); B60K 17/28 (2006.01); F16C 3/03 (2006.01); F16H 57/02 (2012.01);
U.S. Cl.
CPC ...
B60K 17/08 (2013.01); B60K 5/02 (2013.01); B60K 17/06 (2013.01); B60K 17/10 (2013.01); B60K 17/22 (2013.01); B60K 17/344 (2013.01); B60K 23/08 (2013.01); B60T 1/062 (2013.01); B60T 11/12 (2013.01); B60T 11/21 (2013.01); B60T 11/28 (2013.01); F16H 3/093 (2013.01); F16H 3/14 (2013.01); F16H 39/42 (2013.01); F16H 47/02 (2013.01); F16H 47/04 (2013.01); F16H 57/025 (2013.01); F16H 61/0009 (2013.01); B60K 17/28 (2013.01); B60Y 2200/221 (2013.01); B60Y 2410/10 (2013.01); F16C 3/03 (2013.01); F16H 2057/02056 (2013.01);
Abstract

A work vehicle according to the present invention includes an engine installed in a traveling machine body supported by traveling units, and a transmission case incorporating a hydraulic continuously variable transmission. The transmission case incorporates a forward/backward traveling switching mechanism. The work vehicle includes forward traveling valves for forward traveling hydraulic clutches, a backward traveling valve for a backward traveling hydraulic clutch, and a master valve configured to control hydraulic oil supplying to the forward traveling valves and the backward traveling valve. A part of a hydraulic circuit is formed on a front lid member of the transmission case. The forward traveling valves, the backward traveling valve, and the master valve are attached on a front surface side of the front lid member.

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