Title:
DECK CRANE, CONTROL METHOD FOR DECK CRANE, AND SHIP
Document Type and Number:
Japanese Patent JP2014069904
Kind Code:
A
Abstract:
To provide a deck crane for reducing an overload region for operating at a load equal to or more than a rating limit load, a method for controlling the deck crane, and a ship.
A deck crane has a pressure switch 21 disposed at a P port between a hydraulic pump 32 and a relief valve 40, and operates an electromagnetic valve 22 for switching the flowing direction of working oil to return the total amount of the working oil discharged by the hydraulic pump 32 to a tank 61, when the pressure of the working oil reaches a predetermined switching pressure.
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Inventors:
OGUSHI YASUTO
YAMAMOTO MASAAKI
KURODA TETSUO
SHIROYAMA SACHIHIRO
NISHIDA KAZUYA
KINOSHITA KENTA
SASANO TAISUKE
TSUBAKIHARA TSUTOMU
YAMAMOTO MASAAKI
KURODA TETSUO
SHIROYAMA SACHIHIRO
NISHIDA KAZUYA
KINOSHITA KENTA
SASANO TAISUKE
TSUBAKIHARA TSUTOMU
Application Number:
JP2012215091A
Publication Date:
April 21, 2014
Filing Date:
September 27, 2012
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
B66D1/44; B66D1/58
Attorney, Agent or Firm:
Hiroaki Sakai
Jun Takamura
Jun Takamura
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