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. 19, 2016

Filed:

Mar. 17, 2015
Applicant:

Kubota Corporation, Osaka, JP;

Inventors:

Atsushi Matsumoto, Osaka, JP;

Ryuichi Nadaoka, Osaka, JP;

Masahiro Sugioka, Osaka, JP;

Assignee:

KUBOTA CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 3/43 (2006.01); E02F 9/08 (2006.01); E02F 9/20 (2006.01); E02F 9/24 (2006.01); E02F 3/34 (2006.01);
U.S. Cl.
CPC ...
E02F 3/432 (2013.01); E02F 3/3417 (2013.01); E02F 3/431 (2013.01); E02F 3/433 (2013.01); E02F 9/2037 (2013.01); E02F 9/24 (2013.01);
Abstract

When maintaining a ground pivot angle of the bucket constant irrespective of any vertical pivotal movement of the boom, a ground angle maintaining controlling section stops a bucket actuator when it is detected that a vertical pivot angle of the bucket has reached an elevation restricted angle which is set smaller by a set angle than an elevation limit angle of the bucketor a lowering restricted angle which is set greater by a set angle than a lowering limit angle of the bucket.


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