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:
May. 30, 2017

Filed:

Oct. 16, 2015
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Yuto Fujii, Hirakata, JP;

Tsutomu Iwamura, Yokohama, JP;

Masanobu Seki, Fujisawa, JP;

Assignee:

KOMATSU LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/36 (2006.01); E02F 3/40 (2006.01); E02F 9/26 (2006.01); G01C 15/12 (2006.01); G01S 19/45 (2010.01); E02F 3/32 (2006.01);
U.S. Cl.
CPC ...
E02F 3/3681 (2013.01); E02F 3/40 (2013.01); E02F 9/265 (2013.01); G01C 15/12 (2013.01); G01S 19/45 (2013.01); E02F 3/32 (2013.01);
Abstract

A hydraulic excavator is equipped with a bucket, a tilt cylinder, a fourth stroke sensor, and a bucket information computing unit. The bucket is able to rotate about the center of a tilt axis. The tilt cylinder causes the bucket to rotate about the center of the tilt axis. The fourth stroke sensor detects a stroke length of the tilt cylinder. The bucket information computing unit obtains a tilt angle of the bucket on the basis of the stroke length detected by the fourth stroke sensor.


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