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Title:
DOOR BODY MOORING DEVICE OF DERRICKING GATE BREAKWATER
Document Type and Number:
Japanese Patent JP2010133095
Kind Code:
A
Abstract:

To reduce a load acting on a mooring rope even if the load acts on a door body.

This device is used to moor the door body 12 of a derricking gate breakwater 11 having the door body 12 formed by arranging a plurality of sets of door body blocks parallel to one another in the lateral direction by the buoyancy of a pneumatic chamber 12b. A deflector sheave 22 is installed in the device at a portion facing the rear surface 12c of the door body 12 stored in a storage part 14. A hook 23 having a rotating pivot 23a at one end is installed in the device at a position facing a gate mooring part 21 attached to the rear surface 12c of the stored door body 12. The device includes a hook attaching/detaching cylinder 25 having a running block 26 attached to the tip of a rod 25a. One end of the mooring rope 24 is attached to the intermediate part of the hook 23, and the other end thereof is drawn to above water through the deflector sheave 22, the running block 26, and a standing block 28, and connected to an extension device 27. Even if a wave with a considerably long cycle acts on the device by wind and ocean waves when the door body is fallen, the load acting on the mooring rope can be effectively reduced.

COPYRIGHT: (C)2010,JPO&INPIT


Inventors:
NAKAHO KYOICHI
MORII TOSHIAKI
NIISATO HIDEYUKI
KIMURA YUICHIRO
Application Number:
JP2008307699A
Publication Date:
June 17, 2010
Filing Date:
December 02, 2008
Export Citation:
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Assignee:
HITACHI SHIPBUILDING ENG CO
International Classes:
E02B7/40
Domestic Patent References:
JP2006257841A2006-09-28
JPH11200349A1999-07-27
JP2006257842A2006-09-28
Attorney, Agent or Firm:
Tetsuya Mizogami
Yoshinori Iwahara
Susumu Yamamoto