AUTOMATIC LOCKING/UNLOCKING SYSTEM OF SHIP GATE

Japanese Patent JP3936273

B2

PROBLEM TO BE SOLVED: To provide an automatic locking/unlocking system of a ship gate capable of being unlocked and opening a door by only propulsive force of a ship, improving safety of a worker and, at the same time, being obtained at a low cost in comparison with the system equipped with equipment for automatically opening a door body such as an electric motor or the like.
SOLUTION: Both right and left door bodies 3 and 3 are mounted to a frame body 2 supported by a float 1 in a semi-submersible state. A ship protective material 6 are provided on both door bodies 3 and 3 to respectively provide variable arms 5 making displacement at least in the case the ship sails, and movable members 7 and 7 are provided on the pivoting sides of the door bodies 3 by opposing them to both variable arms 5 and 5. Ropes 8 and 8 are arranged among both variable arms 5 and 5 and both movable members 7 and 7, and the variable arms 5 and the movable members 7 opposed to each other on both door bodies 3 and 3 through the ropes 8 and 8 can be interlocked with each other. On the pivoting sides of both right and left door bodies 3 and 3, door lock members 9 and 9 are respectively provided on the frame body 2, and the movable members 7 of both door bodies 3 and 3 and the door lock members 9 and 9 are respectively detachable.

Osamu Tsutsumi
Hiroshi Azuma
Keiji Shoji
Masaru Sakaguchi

JP2002306874A

June 27, 2007

October 22, 2002

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Zenya Marine Service Co., Ltd.

E02B7/20; E02B7/40; E02B5/06; E02C1/10; (IPC1-7): E02B5/06; E02B7/20; E02B7/40; E02C1/10

JP57155414A
JP58013811A
JP2002129540A
JP2001073347A
JP2002021054A

Kunihiko Fujita
Susumu Fukuda
Norihiko Fujita

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