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. 22, 2016
Filed:
Apr. 24, 2012
Hideaki Suzuki, Tokyo, JP;
Kozo Nakamura, Tokyo, JP;
Shinya Yuda, Tokyo, JP;
Hiroki Uchiyama, Tokyo, JP;
Takashi Saeki, Tokyo, JP;
Kesaaki Minemura, Tokyo, JP;
Jyunsuke Fujiwara, Tokyo, JP;
Hideaki Suzuki, Tokyo, JP;
Kozo Nakamura, Tokyo, JP;
Shinya Yuda, Tokyo, JP;
Hiroki Uchiyama, Tokyo, JP;
Takashi Saeki, Tokyo, JP;
Kesaaki Minemura, Tokyo, JP;
Jyunsuke Fujiwara, Tokyo, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
A hydraulic shovel includes: a storage unit which stores an operation history of a target component of the shovel targeted for life span estimation, a discrimination threshold value used for classifying usage of the target component into a plurality of usage modes based on the operation history, and a usage mode-specific estimated life span indicative of an estimated life span of the target component in each of the usage modes; and an arithmetic and control unit which calculates an operating time of the target component in each of the usage modes in accordance with the operation history and the discrimination threshold value, and estimates the life span of the target component based on the operating time calculated for each of the usage modes and on the usage mode-specific estimated life span.