QUAY CRANE AND CONTROL METHOD OF QUAY CRANE
To provide a quay crane capable of suppressing weight increase of the folding boom while accurately maintaining the horizontal position of the tip boom by the auxiliary stay at the erected state of the folding boom and provide a control method of this quay crane.SOLUTION: An auxiliary stay 15 consis...
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Format: | Patent |
Sprache: | eng ; jpn |
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