JPS6236B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for introducing and retrieving explosives, etc., in a marine research vessel or the like.

For example, when conducting a geological survey of the seabed, it is necessary to continuously detonate explosions at predetermined locations in the sea, so a chain with explosives and buoys that hold the explosives at a certain depth are attached at regular intervals is placed in the sea. The work of loading and unloading onboard ships is frequently carried out. In addition, control cables, compressed air supply hoses, etc. are connected to the explosives, but in conventional ships, chain loading and lifting operations are carried out on the upper deck using rollers, etc. installed on the upper deck. This requires a large working space on the upper deck, and there is a risk of damaging cables and hoses, making it difficult and inefficient to load and unload explosives.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a device that can easily and efficiently carry out loading and retrieving of explosives and the like.

The present invention will be described below with reference to drawings showing embodiments.

In Figures 1 and 2, both sides 2 of a ship 1 are shown.
Above the upper deck 3 near the
Each rail 5 has an I-shaped cross section extending to the rear of the ship, and the end of each rail 5 in the center of the ship is slightly bent inward. Winches 6 are provided on the upper deck 3 below each rail 5 in the center of the ship. As shown in detail in FIG. 3, on the upper deck 3 below the rail 5 at the stern end, an elevating table 8 is provided which is raised and lowered by a pantograph mechanism 7. The elevating table 8 includes a front fixed part 9 and a rotating part 11 rotatably attached to the rear end of the fixed part 9 and rotated by a hydraulic cylinder 10. Further, a rotatable guide plate 20 is provided at the stern end 4. A plurality of trolleys 21 are attached to the rail 5, and hooks 22 are suspended from the trolleys 21.

A plurality of fixtures 24 are fixed to the chain 23 at regular intervals, and an explosion gun (container) 25 is always attached to the fixtures 24, except during maintenance and inspection. Further, a control cable and a compressed air supply hose 26 are connected to the explosion gun 25.

On board the ship, the chain 23 is suspended from the hook 22 of the trolley 21 by the attachment 24, and when not in use, is stored suspended from the rail curved portion 5a in the center of the ship.

The operation of charging the explosive gun 25 is carried out as follows.

That is, first, the guide plate 20 at the stern end 4 is
It is fixed in an oblique position as shown by solid lines in the figure and FIG. Then, with the lifting table 8 lowered, the trolley 21 on which the chain 23 is suspended is
is moved toward the stern by appropriate means and stopped above the lifting table 8, and the lifting table 8 is raised to slightly lift the explosion gun 25, fixture 24, and chain 23. At this time, the table rotating part 11 is fixed in a horizontal position as shown by the solid line in FIG. 3, so that more than half of the explosive gun 25 rests on the rotating part 11. Next, the hook 22 of the trolley 21 is removed from the lifted fixture 24, and the wire rope 28 of the buoy 27 is attached to the fixture 24, after which the table rotating portion 11 is rotated downward. As a result, the explosion gun 25
and falls into the sea along the guide plate 20. By repeating the above operations, the explosive guns 25 are dropped into the sea one after another, and the explosive guns 25 are held at constant intervals and at a constant depth by the chain 23 and buoy 27. Note that the trolley 21 removed from the chain 23 is temporarily stored at the rear end of the rail 5. In addition, a wire rope 29 of the winch 6 is connected to one end of the chain 23, and the winch 6
The explosive gun 25 can be dropped while braking.

The work of retrieving the explosive gun 25 is carried out as follows.

That is, first, the guide plate 20 at the stern end is fixed in a vertical position as shown by chain lines in FIGS. 1 and 3. Then, with the lifting table 8 raised and the table rotation unit 11 fixed in a downwardly inclined position as shown by the chain line in FIG.
The chain 23 is pulled by the wire rope 29 using the winch 6, and the explosion gun 25 is pulled up from the stern end 4 along the table rotation part 11 onto the lifting table 8. Once the explosive gun 25 is placed on the table 8, rotate the rotating part 11 to the horizontal position to slightly lift the explosive gun 25, fixture 24 and chain 23, remove the buoy 27 from the fixture 24, and remove the rail. The hook 22 of the trolley 21 stored in the rear end of the trolley 5 is attached to the fixture 24. Next, the table 8 is lowered to suspend the explosive gun 25 from the trolley 21, and after these are moved further forward, the table 8 is raised again and the rotating part 11 is rotated diagonally downward, so that the next Explosive gun 25 is salvaged. By repeating the above operations, the explosive guns 25 dropped into the sea are pulled up onto the ship one after another.

In the above embodiment, the explosion gun 25 is used as the explosive, and compressed air is supplied to the explosion gun 25.
Although an explosion of compressed air is caused within the chain, explosives such as gunpowder may be loaded each time into a container attached to the chain. Even in this case, gunpowder or the like can be easily loaded while the container is suspended. The configurations of the rail 5, lifting table 8, trolley 21, etc. are not limited to those of the above embodiment, and can be modified as appropriate. For example, the rear end of the rail 5 may be folded onto the ship when not in use. In addition, the guide plate 2 at the stern end 4
0 is not necessarily required.

As described above, the device according to the present invention
A rail 5 is provided above the upper deck 3 near the ship and extends from the center of the hull to the rear of the stern end 4, and a container 25 for explosives, etc., which runs along the rail 5 and is attached to a chain 23, is attached and detached. A trolley 21 configured to be freely suspended, and a lifting table 8 provided on the upper deck 3 below the rail 5 at the stern end for lifting the container 25 and chain 23 suspended from the trolley 21. Because it is equipped with
With the chain 23 etc. suspended from the trolley 21,
Capable of loading and retrieving explosives, etc. Therefore, there is no need to secure a large work space on the upper deck 3, the loading and unloading operations are easy, and there is no risk of damaging cables, hoses, etc. connected to explosives, etc. Furthermore, by using the lifting table 8, it is possible to easily attach and detach explosives and the like to and from the trolley 21.
Furthermore, the chain 23 and explosives etc. are transported to the trolley 2.
Since the device can be stored in any location while suspended from the device, there is no need to secure a special storage space, and maintenance and inspection are easy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a schematic side view of a ship, FIG. 2 is a plan view thereof, and FIG. 3 is a partially enlarged view of FIG. 1. 1...Ship, 2...Ship side, 3...Upper deck, 4...
Stern end, 5...Rail, 8...Elevating table, 2
1...Trolley, 23...Chain, 25...Explosion gun (container).

Claims (1)

[Claims] 1 A rail 5 provided above the upper deck 3 near the ship's side 2 and extending from the center of the hull to the rear of the stern end 4
and runs along the rail 5, and the chain 23
A trolley 21 on which a container 25 of explosives or the like attached to the trolley 21 is detachably suspended, and the container 25 and the chain 2 suspended from the trolley 21.
3. A device for introducing and lifting explosives, etc. in a ship, which is equipped with a lifting table 8 provided on the upper deck 3 below the rail 5 at the stern end.