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    • 11. 发明专利
    • PONTOON TYPE HATCH COVER DEVICE
    • JPS6313886A
    • 1988-01-21
    • JP15826986
    • 1986-07-05
    • MITSUBISHI HEAVY IND LTDSEIRYO ENG
    • KAMATA YUJIROYOSHIMOTO MASAKI
    • B63B19/24B63B19/16
    • PURPOSE:To project out a movable water discharging gutter to the lower part of the top plate of an adjacent hatch cover while freely operating a clamping fitting and enable each hatch cover to be freely opened and closed by providing an interlocking mechanism on the lifting recess of each of plural hatch covers for a large hatch in which a longitudinal beam is omitted. CONSTITUTION:A large hatch 2 is opened over the whole width of an upper deck 060, and plural hatch covers 7-9 are provided on a hatch edge member 1 formed with side edges 3, 4, top plates 5, and seal bars 6. Lifting recesses 10a-10d which is engaged with the twist lock pin of the cargo-working spreader of a container crane are provided on the top face of the hatch covers 7-9. Clamping fittings can be operated by rotating the lifting recesses 10a, 10b on both side hatch covers 7, 9 via interlocking rods 35. The lifting recesses 10c, 10d on the center hatch cover 8 enables a movable water discharging gutter to be projected out to the lower part of the top plates of both side hatch covers 7, 9 through an interlocking rod 28. And, each of the hatch covers can be freely opened and closed regardless of their order.
    • 14. 发明专利
    • RAIN AND WIND TIGHT DEVICE FOR HATCH COVER
    • JPS63180585A
    • 1988-07-25
    • JP1153487
    • 1987-01-21
    • MITSUBISHI HEAVY IND LTDSEIRYO ENG
    • KAMATA YUJIROWADA TOSHIAKIYOSHIMOTO MASAKI
    • B63B19/26
    • PURPOSE:To keep hatch covers in a rain and wind tight state or to release the state automatically, by turning a small cover in a longitudinal passage by actuating a turning mechanism such that it covers a space between confronting drain passage when both adjacent hatch covers are placed on an upper portion of an edge member. CONSTITUTION:When hatch covers 4, 5 are lowered to prescribed closing positions and a gasket seal 7 is seated on a hatch cover edge member 2 pressed against the upper portion of a seal bar 3, an end 21a of a lever 21 is depressed by a pressing plate 23 and its other end 21 is lifted to move a link plate 18 upwardly against a spring 12 so that a lever 16 turns clockwise about a pin 11. Then, a small cover 14 in a longitudinal passage turns to a position shown by a solid line, a gasket 15 is pressed into contact with the upper portion of the seal bar so that rain and water tightness is created automatically as the hatch covers 4, 5 are closed. Next, when the hatch covers 4, 5 are opened, the rain and wind tightness is automatically released by lifting them, respectively. Thus, when a plurality of hatch covers are opened, an order for opening them is not necessary to be set. Therefore, rain and water tightness is automatically set by opening and closing hatch covers.
    • 15. 发明专利
    • LARGE HATCH COVER
    • JPS62299490A
    • 1987-12-26
    • JP14426286
    • 1986-06-20
    • MITSUBISHI HEAVY IND LTDSEIRYO ENG
    • KAMATA YUJIROYOSHIMOTO MASAKI
    • B63B19/16B63B19/24B63B19/26
    • PURPOSE:To freely open and close plural hatch covers, by parallelly movably providing a movable longitudinal drain plate in the transverse direction of a longitudinal drain groove part, which protrudes to both side walls of a central hatch cover, and driving the movable longitudinal drain plate through a recess metal vertically movably provided in a top plate of the central hatch cover. CONSTITUTION:Plural hatch covers of central, right and left hatches are arranged in a large hatch opened over almost the whole width of an upper deck in a container ship or the like. A longitudinal drain groove part 26 is provided protruding to a part opposed to right and left hatch covers 6 in both side walls of a central hatch cover 5, and a movable longitudinal drain plate 25 is parallelly movably provided in the lateral direction transversing the point end upper of a flange part 26a of said longitudinal drain groove part 26. And the movable longitudinal drain plate 25 performs its lateral movement through a driving lever 18 interlocking to the vertical movement of a movable recess metal 8 provided in a top plate of the central hatch cover 5. By this constitution, the large hatch, which enables its setting plural hatch covers to be opened and closed freely in the successive order, additionally enables each hatch cover to surely obtain its tightness for wind and rain.
    • 16. 发明专利
    • HATCH COVER WEATHERPROOF STRUCTURE
    • JPS62241787A
    • 1987-10-22
    • JP8223386
    • 1986-04-11
    • MITSUBISHI HEAVY IND LTDSEIRYO ENG
    • KAMATA YUJIROYOSHIMOTO MASAKI
    • B63B19/26
    • PURPOSE:To make the restriction on the removal order of multiple hatch covers unnecessary by parallelly moving a longitudinal drain receiving trough to both extended and withdrawn positions in the horizontal plane interlockingly with the rotation of a twist lock pin. CONSTITUTION:When a hatch 2 is to be closed, a hatch cover 4 supported by a twist lock pin 6 fitted to a crane spreader 7 is mounted on the hatch 2, the twist lock pin 6 is rotated 90 deg. so that it can be released from the hatch cover 4, and at the same time, a horizontal rod 11 is extended as the twist lock pin 6 is rotated, a drain receiving trough 13' fitted to the rod 11 reaches the boundary with the adjacent hatch cover 4, the rain water passing the gap between them is received and discharged. When the hatch cover 4 is to be opened, the twist lock pin 6 is inserted into the hatch cover 4 and is rotated 90 deg. to be engaged with the hatch cover 4, the rod 11 is shortened by its rotation, the drain trough 13' is withdrawn and removed from the adjacent hatch cover 4, thus the hatch cover 4 can be opened.