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.:
Date of Patent:
Mar. 06, 2018
Filed:
Jan. 29, 2015
Applicant:
Komatsu Ltd., Tokyo, JP;
Inventors:
Kazeto Kumamoto, Hirakata, JP;
Masato Kageyama, Oyama, JP;
Assignee:
KOMATSU LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/26 (2006.01); E02F 9/08 (2006.01); E02F 9/14 (2006.01); E02F 3/32 (2006.01);
U.S. Cl.
CPC ...
E02F 9/26 (2013.01); E02F 3/32 (2013.01); E02F 9/0808 (2013.01); E02F 9/0833 (2013.01); E02F 9/0883 (2013.01); E02F 9/14 (2013.01); E02F 9/265 (2013.01);
Abstract
The hydraulic excavator comprises a revolving frame, a boom, a rotary encoder, and a link member. The revolving frame has a base plate and a first vertical plate and second vertical plate that are opposite each other and rise from the base plate. The boom is rotatably supported by the first vertical plate and the second vertical plate. The rotary encoder is provided at a position that is different from a position of the rotational axis of the boom, and senses the rotational angle of the boom according to the rotation of the boom. The link member transmits displacement of the boom to the rotary encoder.