CRANE - TADANO LTD

Title:

CRANE

Document Type and Number:

WIPO Patent Application WO/2019/177164

Kind Code:

A1

Abstract:

This crane is provided with: a to-be-operated function unit which at least includes a boom; an operation unit which receives an operation input for operating the to-be-operated function unit; an actuator which drives the to-be-operated function unit; a generation unit which generates a first control signal for the actuator on the basis of the operation input; a plurality of wire ropes; a plurality of hooks suspended from a leading end section of the boom by the plurality of wire ropes, respectively; a hook detection unit which detects, from among the plurality of hooks, an unused hook suspending no load; a calculation unit which calculates a resonance frequency for a wire rope, among the plurality of wire ropes, that suspends the detected unused hook; a filter unit which generates a filter on the basis of the resonance frequency and generates a second control signal by filtering the first control signal using the filter; and a control unit which controls the actuator on the basis of the second control signal.

More Like This:

WO/2004/016539	CRANE SYSTEM, ESPECIALLY A CONTAINER CRANE
JPH10203777	ATTITUDE CONTROL DEVICE OF LIFTING CARGO

Inventors:

KANDA SHINSUKE (JP)
MIZUKI KAZUMA (JP)

Application Number:

PCT/JP2019/010990

Publication Date:

September 19, 2019

Filing Date:

March 15, 2019

Export Citation:

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Assignee:

TADANO LTD (JP)

International Classes:

B66C13/22; B66C23/00; B66C23/06

Domestic Patent References:

WO2005012155A1	2005-02-10
WO2005012155A1	2005-02-10

Foreign References:

JP2017193385A	2017-10-26
JP2018002426A	2018-01-11
JP2018050258A	2018-03-29

Other References: