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:
May. 12, 2026
Filed:
Oct. 04, 2022
Tadano Ltd., Kagawa, JP;
Tsukasa Fujimoto, Kagawa, JP;
Kenichi Nagakane, Kagawa, JP;
TADANO LTD., Kagawa, JP;
Abstract
This work machine comprises: a plurality of booms that extend and retract with the power of an actuator; a first pin that is moved by a first spring to connect adjacent booms and is moved by power of a motor to release a connection of the adjacent booms; a second pin that is moved by a second spring to connect the boom and the actuator and is moved by power of the motor to release a connection of the boom and the actuator; and a circuit that is configured so that when the first pin is moved by the first spring or when the second pin is moved by the second spring, a current based on motor idling caused by the movement of the first pin or second pin is not generated.