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:
Mar. 15, 2022

Filed:

Sep. 09, 2019
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Junichi Murakami, Tokyo, JP;

Naohisa Iwasawa, Tokyo, JP;

Yukihide Yoshihara, Tokyo, JP;

Akinobu Iwasaki, Tokyo, JP;

Yuki Monnai, Tokyo, JP;

Nobuyasu Sugihara, Tokyo, JP;

Assignee:

KOMATSU LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/40 (2006.01); E02F 3/32 (2006.01);
U.S. Cl.
CPC ...
E02F 3/40 (2013.01); E02F 3/32 (2013.01);
Abstract

A bottom plate includes a first deepest portion at which a length from a first reference straight line to the bottom plate is maximum. The first reference straight line passes through a front end portion of a front lip and a position at which a rear end portion of the bottom plate is contiguous to each of side plates. The first deepest portion is located on a second reference straight line orthogonal to the first reference straight line. A side end portion of each of the side plates is provided with a recessed portion. The recessed portion includes a second deepest portion at which a length from the first reference straight line to the recessed portion is maximum. The second deepest portion is located on the second reference straight line or located close to the front lip with respect to the second reference straight line.


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