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:
Jan. 07, 2025
Filed:
Oct. 28, 2020
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Naoki Hagiwara, Kasumigaura, JP;
Kazuhiko Mizoguchi, Ishioka, JP;
Keiichirou Anahara, Kasumigaura, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
A hydraulic excavator includes: operation devices that output, based on operation by an operator, operation signals to operate a lower travel structure, an upper swing structure, and a front work implement; solenoid valves, andthat limit the operation signals outputted from the operation devices; and a controller that controls the solenoid valves based on detection signals from sensors, and that detect objects in the surroundings of a machine body. The detection ranges of the sensors, and include a first detection range TR defined based on travel performance of the lower travel structure and a second detection range SW defined to be along a swing radius of a rear end of the upper swing structure. As a result, the influence of excessive alarm on the working operator can be reduced while enhancing detection accuracy by setting the detection range according to action range of the work machine.