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:
Sep. 30, 2025
Filed:
Jan. 06, 2022
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Shinji Nishikawa, Kasumigaura, JP;
Hiroaki Tanaka, Kasumigaura, JP;
Masatoshi Morikawa, Ushiku, JP;
Akihiro Narazaki, Tsukuba, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
A work machine includes a work implement provided to a machine body, a posture sensor that senses posture information regarding the work implement, a controller configured to compute a specific position of the work implement on the basis of the posture information, set a limited area that the work implement is prohibited from entering, compute a movable distance as a distance between the limited area and the specific position of the work implement, and limit operation of the work implement according to the movable distance to prevent the work implement from entering the limited area, and an input device for inputting to the controller input information input by an operation of an operator. The controller includes a storage device that stores boundary information related to a plurality of different kinds of shapes of limited area boundaries, and the controller is configured to select one from among the plurality of kinds of shapes of limited area boundaries included in the boundary information, on the basis of the input information input from the input device, and set a limited area boundary of the selected kind of shape.