| 摘要 |
PROBLEM TO BE SOLVED: To easily and surely open and close a device and to reduce cost by extending a net member on a frame member on a connecting frame body provided on the halfway of a fishing net yard, mounting a door body supported by a float and performing a remote control by making a solar battery as a power source. SOLUTION: On the halfway of a fishing net yard b, a passage vessel gate device A constituted of a connecting frame body 1 which is constituted of side frames 4, 5 and a horizontal frame 6 and has depth and width with which a hull of a dust collecting vessel does not interfere, a door body 2 and an opening and closing means 3 is provided. In the connecting frame body 1, floats 9 are mounted on the lower sides of platform floor bodies 7, 8 provided on upper parts of side frames 4, 5 and are floated on a water surface 10. On the platform floor body 7, an opening and closing means 3 provided with a motor with a speed reducing machine by making a solar battery as a power source is provided. In the door body 2, a net member 13 such as Tetron is extended on the frame member 12 and is formed into a sheet of door shape and floats 14, 14 are mounted. At the time of passage of a vessel, the opening and closing means 3 is operated by a remote control device and the door body 2 is opened and closed. Because the door body 2 is supported by the floats 14, the opening and closing are easily performed, an opening and closing mechanism can be simplified and made light in weight and manufacturing cost can be reduced.
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