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:
Dec. 17, 2013

Filed:

Mar. 23, 2011
Applicants:

Minoru Hiraoka, Osakasayama, JP;

Atsushi Hayashi, Nara, JP;

Masaru Andou, Kawachinagano, JP;

Masakazu Hino, Sakai, JP;

Inventors:

Minoru Hiraoka, Osakasayama, JP;

Atsushi Hayashi, Nara, JP;

Masaru Andou, Kawachinagano, JP;

Masakazu Hino, Sakai, JP;

Assignee:

Kubota Corporation, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 3/72 (2006.01); F16H 47/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A transmission apparatus for a tractor is operable to transmit a forward drive force in a wide speed changing range to the traveling device and which is operable also to transmit a reverse drive force to the traveling device. A planetary transmission section is configured to output the forward drive force in whichever case a hydrostatic stepless speed changing section is speed-changed to a forward rotation speed change state or a reverse rotation speed change state. A low speed transmission clutch couples a low speed side speed changing gear to a counter shaft to be rotatable therewith. A high speed transmission clutch couples a high speed side speed changing gear to the counter shaft to be rotatable therewith. A reverse transmission clutch couples a reverse transmission gear to an output shaft to be rotatable therewith.


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