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.

Date of Patent:
May. 12, 2026

Filed:

Jun. 03, 2021
Applicant:

Tadano Ltd., Kagawa, JP;

Inventor:

Yoshimasa Minami, Kagawa, JP;

Assignee:

TADANO LTD., Kagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66C 13/06 (2006.01); B66C 13/16 (2006.01); B66C 13/46 (2006.01); B66C 13/48 (2006.01); B66C 23/42 (2006.01); B66C 23/88 (2006.01);
U.S. Cl.
CPC ...
B66C 13/063 (2013.01); B66C 13/16 (2013.01); B66C 13/46 (2013.01); B66C 13/48 (2013.01); B66C 23/42 (2013.01); B66C 23/88 (2013.01); B66C 2700/0371 (2013.01);
Abstract

A dynamic lift-off control device that is mounted on a crane including a boom and a winch for winding a wire rope and that controls dynamic lift-off of a suspended load, wherein: the dynamic lift-off control device comprises a load detection unit that detects a load acting on the boom, and a control unit that controls a winding action of the winch and a hoisting action of the boom; and the control unit controls the hoisting of the boom by using a control signal, which is generated on the basis of the change over time in the value detected by the load detection unit and to which a filter for attenuating a frequency component in a prescribed range, to suppress swaying of the suspended load is applied.


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