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Title:
AUTOMATIC RETREAT SYSTEM OF UNLOADER
Document Type and Number:
Japanese Patent JP2014227283
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an automatic retreat system of an unloader which makes the unloader in operation whose supply part is inserted into a hatch safely retreat to a position in which the unloader does not interfere with a ship at the occurrence of an earthquake, and can prevent the unloader and the ship from being damaged.SOLUTION: When a retreat signal of an operator is inputted at the occurrence of an earthquake, a horizontal boom 12 is activated and a vertical boom 13 is swung by an automatic retreat control mechanism from an operation state of a mechanical unloader 1 whose supply machine 14 is inserted into a hatch 31, and after the horizontal boom 13 is transited to a horizontal state and the vertical boom 13 is transited to a vertical state which are fundamental posture states, the horizontal boom 12 is activated and the vertical boom 13 is swung so that the supply machine 14 is ascended immediately above, and the supply machine 14 is drawn up to the outside of the hatch 31.

Inventors:
NAITO MASAMI
NAGAYAMA YOSHIMASA
UENO KOZO
Application Number:
JP2013110015A
Publication Date:
December 08, 2014
Filing Date:
May 24, 2013
Export Citation:
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Assignee:
HITACHI PLANT MECHANICS CO LTD
International Classes:
B65G67/60
Domestic Patent References:
JPH0656042U1994-08-02
JPH11171348A1999-06-29
JP2009203053A2009-09-10
JPH08239124A1996-09-17
JPS55123824A1980-09-24
JPH0873007A1996-03-19
JPH05116766A1993-05-14
JP2007230734A2007-09-13
JPH0656042U1994-08-02
JPH11171348A1999-06-29
JP2009203053A2009-09-10
JPH08239124A1996-09-17
JPS55123824A1980-09-24
JPH0873007A1996-03-19
JPH05116766A1993-05-14
JP2007230734A2007-09-13
Foreign References:
US4732523A1988-03-22
US4732523A1988-03-22
Attorney, Agent or Firm:
Woods 治



 
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