JP2923837B2 - Method of building a ship with multiple windows in water - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a ship having a large number of windows in water, such as an underwater sightseeing ship and a submersible ship.

[0002]

2. Description of the Related Art When building a ship having an underwater window,
As shown in FIG. 4, around a plurality of underwater window frames 7 in a factory.
To open a large number of mounting bolt holes 13, and the presser frame 9 a transparent plate 5 such as a glass plate via a packing or sealing member 11
Are fixed with screws 10 to form an underwater window assembly, which is subjected to a watertight test . And at the mounting site on the hull,
A number of holes are drilled in the main body outer plate 6 in accordance with the positions of the mounting bolt holes 13 of the underwater window frame 7, through bolts 8 are passed through the holes, and a packing or sealing material 12 is interposed between the nuts 15.
Is installed .

[0003]

When the hull is made of FRP, the above-mentioned drilling work on the hull is performed by processing a soft material.
It is simple because it is. However, as in the case of ships with many underwater windows, such as underwater sightseeing boats and submersibles made of steel, the thickness of the steel plate that constitutes the outer plate is 6 to 20 mm. Use a heavy electric drill to fit a large number of holes into the holes around the underwater window frame, and accurately drill one hole at a time in a nearly vertical outer plate at a hull construction site with poor scaffolding. Need to be able to work on a solid scaffold and operate a heavy electric drill.
It takes a lot of people and a lot of time to make
As a result, the mounting cost is enormous.

On the other hand, underwater window frames can be mechanically drilled because they are manufactured in a factory, and have good dimensional accuracy, and because of their favorable working environment, they are often used for machining and assembling. There is an advantage that does not require time.

[0005] The mounting system of the bolt, not only the mounting man-hours from the reason, it is necessary to ensure the water-tightness of the bolt through portions of the hull, the window frame and watertight glass portion in Plant Thus, it is possible to completely maintain water tightness with a packing or a seal member after machining, and a water tightness test is also easy . However, great care must be taken to ensure the watertightness of the parts constructed on site, such as the bolt penetrations of the hull skin . In addition, the underwater window frame is welded to the opening of the hull skin.
After attaching the glass plate etc. to this,
Testing becomes virtually difficult and unreliable
There's a problem.

The present invention has been made in order to solve the problems of the prior art, and an object of the present invention is to substantially attach a "water window assembly" manufactured in a factory to a hull outer panel. It is an object of the present invention to provide a method of constructing a ship having a large number of underwater windows, which can reduce the number of installation steps and is excellent in watertightness.

[0007]

That is, according to the present invention, there is provided a method for constructing a ship having a large number of windows in water, comprising: a window frame collar fixed to an opening of an underwater portion of a hull shell; A transparent plate is fitted from the side that comes into contact with water with a packing interposed around the transparent plate receiving portion of the frame portion having a transparent plate receiving portion formed therein, and the holding frame is further fixed with screws to secure the transparent plate. Fixing the underwater window frame assembly in the factory by fixing the underwater window frame assembly to the outer surface of the frame portion; performing a predetermined watertightness test on the underwater window frame assembly in the factory; and A window frame flange projecting around the underwater window frame assembly was positioned at the opening of the underwater portion of the outer panel so that the outer surface of the hull outer panel and the outer surface of the transparent panel were substantially flat. In this state, the underbody window is welded to the hull opening by welding the hull skin and the window frame collar. It is characterized by comprising the step of applying.

[0008]

[Operation] As described above, the window frame collar extended around the underwater window frame assembly is made of a material that can be welded to the hull outer panel.
Assemble this underwater window frame assembly in the factory
A watertightness test at a pressure of
The window frame collar is directly welded to the opening of the hull
On-site like a conventional construction method.
In the mounting part of the underwater window with an electric drill
No need to drill holes. This drilling work is outside the hull
Since the board is almost vertical, the operator can
Use a drill to drill many holes in precise locations
The task was extremely difficult,
In the present invention, such an operation is completely unnecessary, and the underwater window is used.
Efficiently in place while maintaining watertightness.
To build a ship.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the construction of an underwater sightseeing boat will be described, but the configuration and effects are the same for a submersible boat.

In FIG. 2 and FIG. 3, reference numeral 20 denotes an underwater sightseeing boat, which is an underwater window 1, a buoyancy tank 2 provided below the water surface A, an observation room 3 higher than the buoyancy tank 2, and a rear part of the observation room 3. Has an engine room 4 provided in
Even if the underwater window 1 is damaged and the observation room 3 is flooded, it does not sink below a certain level.

According to the present invention, the above-mentioned "underwater window frame assembly 7A" is assembled in a factory, and a watertightness test is conducted. At the site, the underwater sightseeing ship is characterized in that the underwater window is directly fixed to an opening forming a window located below the water surface A by welding work.

As shown in FIG. 1, the underwater window frame assembly 7A comprises a frame portion 7a having a thick portion and an underwater window frame collar 7b extending around the frame portion 7a.
A is provided with a transparent plate receiving portion 7c which is widely opened outward.

The surface of the frame portion 7a in contact with water and the surface of the underwater window frame collar 7b form the same plane, and the frame portion 7a projects inside the hull. A transparent plate 5 made of a glass plate or an acrylic plate is fitted into the transparent plate receiving portion 7c formed in the frame portion 7a with a packing or sealing material 11 having a U-shaped cross section attached around the transparent plate 5 and further pressed. The frame 9 is fixed with screws 10 around the surface of the frame portion 7a, and a sealing material is also provided around the holding frame 9 and the transparent plate 5 to seal and eliminate steps.

Since the window frame collar 7b is directly welded to the hull shell 6 as described later, it is important to use a material that can be welded to the hull shell. The underwater window frame assembly 7A is manufactured and assembled in a factory, and is subjected to a watertightness test at a predetermined pressure, so that the watertightness problem does not occur even when the underwater windowframe assembly is attached to a hull as it is. ing.

The underwater window frame assembly 7A assembled as described above is to be attached to the opening of the hull outer panel 6 by welding at the construction site of the ship, and is adjusted to the external dimensions of the underwater window frame flange 7b. An opening having a predetermined size is formed at a predetermined position (a part submerged in water) of the hull outer panel 6.
Then, the underwater window frame flange 7b of the underwater window frame assembly 7A is applied to the opening, and the underwater window frame flange 7b is attached to the inner and outer surfaces of the underwater window frame flange 7b by welding portions 16, 16.

When the underwater window frame collar 7b is fixed to the hull shell 6 by welding, it is necessary to prevent the heat generated by the welding from adversely affecting the packing 11 and the transparent plate 5. The length D of the window frame flange 7b is determined by considering the state in which the heat generated in the welded portions 16 and 16 is transmitted to the packing 11 and the transparent plate 5, and the packing 11 and the transparent plate 5 are thermally damaged. Further, it is necessary to set the range so as not to deteriorate.

As described above, the underwater window frame collar 7 extending around the underwater window frame assembly 7A is provided at the opening of the hull shell 6.
The work of fitting the outer periphery of b and welding the fitting portion, that is, the inner and outer surfaces of the joining portion, is compared with the work of simply overlaying the underwater window frame collar 7b on the surface of the hull outer plate 6 and welding. Although notch dimensional accuracy of the opening is required, it is much easier than in the conventional case where a number of bolt holes are drilled in the hull shell.

Further, since the surface of the hull shell 6 which is in contact with water and the surface of the submersible window frame collar 7b substantially coincide with each other, the portion of the hull shell 6 projecting from the hull shell 6 is restricted by the holding frame 9. Since the thickness of the hull is about the same, it is possible to reduce the propulsion resistance of the hull. In consideration of ease of production and production cost, the frame portion 7a and the window frame collar 7b are separately manufactured and welded, and then the window frame collar 7b is directly attached to the opening of the hull outer panel 6. It is also possible to attach to the vehicle by welding.

Further, since it is necessary to weld the window frame collar 7b to the hull shell 6 as described above, the window frame collar 7b is welded.
It is a matter of course that b must use a material that can be welded to the hull shell 6.

[0020]

Construction method for a ship with a large number of windows in the water according to the present invention as above according to the present invention, the underwater part of the hull 6
A window frame collar 7b fixed to the opening, and the window frame collar 7b
Of the frame portion 7a having the transparent plate receiving portion 7c formed therein.
It comes in contact with water with packing 11 interposed around the bright plate receiving portion 7a.
The transparent plate 5 is fitted from the side to be
0 and fix the transparent plate 5 on the outer surface of the frame 7a.
Fixedly assembling the underwater window frame assembly 7A in the factory;
The underwater window frame assembly 7A was subjected to a predetermined watertightness test in a factory.
Performing the process and at the shipbuilding site,
Around the underwater window frame assembly 7A
The window frame flange 7b protruding from the outer shell 6
Position so that the surface and the outer surface of the transparent plate 5 are almost flat.
The hull shell 6 and the window frame collar 7b are welded together
And installing a submersible window in the opening of the hull.
Have been. Therefore, on the drilling operation of the drill due to the field adjustment to the installation work of underwater window is completely unnecessary, since the assembly operation of the window in the field is not required, the mounting of Engineering of the underwater window
Things become easier.

In a factory, an underwater window frame assembly 7A is installed.
After assembly, perform a water tightness test with a specified pressure.
This is used for the opening of the hull
The watertightness can be greatly improved
it can. As a result , hulls with many windows
It can be manufactured in a special way.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of an underwater window structure of a ship constructed according to the present invention.

FIG. 2 is a side view of an underwater sightseeing boat constructed according to the present invention.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a sectional view showing an example of a conventional underwater window structure of a ship.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Underwater window 6 Hull shell 7A Underwater window frame assembly 7a Frame part 7b Underwater window frame collar 7c Transparent plate receiving part

Claims (1)

(57) [Claims] The hull shell 6 is fixed to an opening of an underwater portion.
Window frame collar 7b and a transparent plate inside the window frame collar 7b
Of the transparent plate receiving portion 7a of the frame portion 7a formed with the receiving portion 7c.
Transparent from the side in contact with water with packing 11 interposed around
The plate 5 is fitted and the holding frame 9 is fixed with screws 10
The transparent plate 5 is fixed to the outer surface of the frame portion 7a and the underwater window frame
A step of assembling the assembly 7A in the factory, and performing a predetermined watertightness test on the underwater window frame assembly 7A in the factory.
Performing the process and the underwater portion of the hull
An opening protrudes around the underwater window frame assembly 7A.
Window frame flange 7b is attached to the outer surface of the hull
In a state where it is aligned with the outer surface of the
Then, the hull shell 6 is welded to the window frame flange 7b to open the hull.
A large number of windows in the water consisting of a process of attaching an underwater window to the mouth
A method for building a ship having: