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:
Nov. 11, 2025
Filed:
Nov. 29, 2019
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
When a bucketis grounded on soil, an operation signal is outputted or corrected such that a relative angle of the bucketwith respect to a target surface is maintained if a distance D between the bucketand the target surfaceis equal to or less than a preset first threshold value D. When the bucketis not grounded on soil, the operation signal is outputted or corrected such that the relative angle of the bucketwith respect to the target surfaceis maintained if the distance between the bucketand the target surfaceis equal to or less than a preset second threshold value Dset smaller than the first threshold value D. As a result, control to maintain an angle of a work tool can be suitably started.