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. 20, 2026
Filed:
Dec. 05, 2022
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Ryu Narikawa, Mito, JP;
Teppei Saitoh, Mito, JP;
Tadashi Kotani, Kashiwa, JP;
Koji Fujita, Tsukuba, JP;
Hideaki Ito, Katori, JP;
Hidefumi Ishimoto, Tsukuba, JP;
Kei Sato, Toride, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
Operations of an upper swing structure and a front work device are controlled such that a swing operation of the upper swing structure starts after a work tool starts only a lifting operation. The lifting operation and the swing operation are performed until the work tool reaches a height position of a passing position and only the swing operation is performed after the work tool reaches the height position of the passing position. The swing operation of the upper swing structure starts to decelerate at a swing deceleration start position, and only the swing operation is performed until the work tool reaches a swing position of the passing position to pass through the passing position. Accordingly, it is possible to reduce the discomfort feeling of an operator while realizing interference prevention at the time of a loading operation and a stop during the loading operation.